Author: 工集君

What’s online oil condition monitoring system?

Online oil condition monitoring systems is a integrated, smart, efficient and cost-effective solution.

Yateks Online Oil Condition Monitoring System features:

（1）Modular original design for easy installation and support OEM

（2） Standardization of non-standard products

（3） Wide range of detection

（4）Tele-diagnosis

（5）Intelligent interaction

（6） Historical data storage and further trend analysis

The functions and benifits of online oil monitoring system

（1）Track machine condition with showing specific parameters both on-site and remote control on mobile so you can trend and analyze data.

（2） Entire plant sections or only critical machines can be monitored with online systems to optimize plant availability. Intelligent interaction is able to alert you to abnormal readings requiring action and help you extend asset life.

（3） Affordable system for large implementations with streamlined architecture and combined multifunctional solution.

（4） For monitoring the wearing state and changing trend of machinery; Achieving maximum machinery and lubricant efficiency to save cost; Guiding you check faults and do maintenance in time to avoid great losses caused by machinery failure; Extending the machinery lifetime……

Application of online oil monitoring system in different industries

（1）Transportation: Vessels, on-board machinery, Aerospace, Heavy Vehicles, Locomotive Engines, etc.

（2）Industrial: Turbine, Compressor, Steel Plant, Cement plant, Food plant, Medicine plant,Filtration, Artificial intelligence machinery etc.

（3）Oil & Gas: Oil & Gas station, Oil & Gas Production machine, Maritime project, etc.

（4）Power: Wind power, Solar power and other new energy, Transformer, etc.

（5） Mining: Mining equipment

（6）Construction: Heavy machinery for construction, Hydraulic system,etc.

Yateks Online oil monitoring system is one of a most efficient and cost-effective monitoring systems for large machinery and extensive plants with production-critical units. we’re can be your best partner to help you protect your asset efficient and reducing cost.

Yateks Vision and Mission for Online oil monitoring system Vision: To be a global leading manufacturer and Intelligent service and comprehensive solution provider of online oil monitoring system. Mission: Protect the environment and contribute to the sustainable development of humans, Engaging in creating customer value.

It is well known that industrial endoscopes are widely used in the automotive engine industry, mainly due to the complex internal structure of the engine. This article will introduce the targeted application of the industrial endoscope produced by Yateks in the engine industry.

The automobile engine is composed of two major mechanisms and five major systems, the crank connecting rod mechanism and the valve mechanism, the ignition system, the fuel supply system, the cooling system, the lubrication system and the starting system. This adds a great challenge to the overhaul service of the car 4S shop. In response to this demand, Yateks high-end P-series and X-series endoscopes have helped a lot. The HDMI signal output can be connected to an external large-screen display, for multiple technical experts to analyze and find the fault location. The probe diameter can be selected from 2.2mm, 2.8mm, 3.9mm, and 6mm with 360 degree articulation which can basically meet the observations in all parts of a complex engine.

The engine body is composed of a cylinder head, a cylinder head gasket, a cylinder block, an oil pan, a cylinder head cover and a main bearing cover. As the engine manufacturer, the demand for endoscope inspection is also very high.

Yateks M series endoscopes and P series endoscopes are used for Ford engine inspection, Nemak cylinder block inspection, and combustion chamber carbon deposit inspection.

Yateks B/B+ endoscope is widely used for defect inspection of castings. Its unique strong light suppression and weak light compensation function is extremely convenient for engineers to use onsite.

Yateks endoscope cameras are made of all-glass materials, materials are up to industry standards, and can withstand a temperature of about 75 degrees.

As a manufacturer of endoscopes, Yateks can also accept customized services for online endoscope inspections. If you have similar needs, you can contact us. Our technical team will tailor-made for you according to your on-site usage with low cost and efficient solution.

Ⅰ. Introduction

YJS150 oil particle particle is made in the principle of light extinction (or light-blockage) and used to detect the size and quantity of solid particles in liquids. Particle counting to detect the degree of contamination of liquids, the fastest and most objective analysis, using laser-optical particle counters which automatically counting the pollution particles using a flow measuring cell and classify them according to their size.

 

Light-source	semiconductor laser
Measuring range	1μm~100μm
Sensitivity	1μm (ISO4402) or 4μm (C) (ISO11171)
Measuring channel	8 channels
NAS1638 standard	5μm; 15μm; 25μm; 50μm; 100μm;
ISO4406 standard	4μm; 6μm; 14μm
Sampling method	offline or online(also can be connected inline oil pipe for detecting)
Sample volume:	10ml
Flow rate	5~35mL/min
Maximum viscosity of sample	100 cSt or 400cSt (with additional pressure device)
Counting accuracy	±10%;
Detection repetition	RSD<2%
Power supply	24V lithium battery (built-in battery)
Data output: ;	Data printed by built-in printer, or transmitted to PC
Liquids temperature	0℃~80℃
Dimension	435*304*170mm
Weight	5KG

 

Ⅱ. Measuring Principle

YJS150 Portable Particle Counter applies the principle of light extinction (or light-blockage) stipulated by ISO4402/ISO11171 to detect the oil contamination and is featured with rapid detection, strong anti-interference, high precision and good repeatability.
As showing in below picture, The parallel beams cross the flow chamber of the sample with section A vertically upon the photoelectric receptor. When there is no particle in the liquid, the output voltage of the circuit will be E. When there is a particle with a projected area of a in the liquid which blocks the parallel beams with the transmission light weakened, the circuit will output a negative pulse of E。{E。=(a/A)×E }.If the particle is spherical or described as its diameter equal to d with 10v of E。=7.854×d2/A.
Which means there is a linear relationship between the projected area and the pulse voltage amplitude.

Ⅲ. Application

Let´s start with THE IMPORTANCE OF PARTICLE COUNTING:

Why measure particulate contamination in liquids so important?

Liquid purity plays an important role in a variety of industries for a diversity of reasons, the particles in the micrometer range that are not visible to the human eye are particularly critical. with a convenient ,effective and accurate way to monitor the pollution status, to early predict the possible damage or fault, avoid great lose and protect asset.
hydraulic systems

• Industrial gears
• Turbines
• Transformers
• Component purity(automotive industry and medical technology)
• Water treatment
• Quality control of pharmaceuticals

The first three examples are mainly concerned with the early detection of abrasion damage or beginning oil wear and filter monitoring. For transformers oil, it can tell you the oils aging condition degree with contaminates.  In the other areas, the purity of the liquid or the product and compliance with specified limit values is of central importance.

Knowing the contamination can help to monitor safety risks, environmental and health hazards as well as improve quality defects.

1 The structure and principle of industrial endoscopes

Industrial endoscope is a non-destructive testing equipment frequently used in the field of industrial manufacturing and maintenance. It can clearly observe the condition of the inside of the equipment or the inner surface of the parts without disassembling or destroying the equipment. Such as wear, cracks, corrosion, attachments and other abnormal conditions. It has the advantages of high inspection efficiency, simple operation, and easy observation of results. It is an indispensable instrument for equipment maintenance and repair in industrial enterprises.

The structure of an industrial endoscope generally consists of a shooting device, a rotating device, a video probe insertion tube, and a control observation system;

2 Application of industrial endoscope in the maintenance of oil refinery

2.1 The application of industrial endoscopes in the inspection of special equipment in oil refineries

The regular inspection of pressure vessels generally requires macro inspection, wall thickness measurement, surface defect inspection, buried defect inspection, material analysis, strength check, safety accessory inspection, pressure test, leak test, etc. The macro inspection also includes structural inspection, geometric size inspection, appearance inspection, and so on. The appearance inspection generally includes the corrosion of the inner and outer surfaces of the container, the main pressure components and weld cracks, leakage, bulging, deformation, mechanical damage, blockage of the discharge device, corrosion, deposits, damage to the insulation layer or the lining layer Wait for inspection. The macro inspection is mainly based on the visual method; however, the pressure vessel may be restricted by the diameter, volume, and internals of the pressure vessel during the inspection process, and the operator cannot directly enter the interior of the vessel. Surface defect detection. In this case, an endoscope can be used to inspect the inside of the container. Although near-surface defects cannot be detected through endoscopic inspection, when magnetic flaw detection and penetrant inspection are not possible, endoscopic inspection is the most appropriate alternative inspection method. Especially the uniform corrosion, local corrosion, and the accumulation of corrosion products on the inner wall of the container can be observed with an industrial endoscope.

2.2 The application of industrial endoscopes in the maintenance of heat exchange tubes of heat exchangers

Heat exchangers and condensers are common and indispensable container types in the production units of oil refineries. The shell side of the heat exchanger and condenser generally has a small probability of cracking and leakage, but the heat exchange tube bundle of the tube side often suffers from corrosion, leakage, and cracking due to the small tube diameter and thin tube wall. The conventional method for leaking heat exchange tube bundles is to flush, suppress, and plug leaks. This solution has strong operability and simple technology, but it cannot effectively grasp the corrosion trend of the heat exchange tube bundle and the distribution of the corrosion position in the axial and circumferential directions, and cannot prevent the slightest failure. In this way, after the heat exchange tube bundle is reassembled and used, it is easy to cause secondary leakage, bring hidden dangers to production, and cause an emergency shutdown. After the introduction of industrial endoscopes to inspect the heat exchange tube, the corrosion, cracking, and fouling of the inner wall of the heat exchange tube can be effectively observed. Together with the eddy current test, the wall thickness, partial cracks, and damage of the heat exchange tube bundle can be detected. The corrosion and thinning trend of the entire tube bundle are revealed, to provide an accurate basis for the overhaul and maintenance of the entire heat exchanger.

2.3 Industrial endoscopes in pressure pipes and other space-restricted applications

Generally speaking, oil refineries need to conduct a large-scale overhaul of most of their production equipment in about three years. During the purging process of maintenance and repair, it is easy to happen that some wastes are blocked to the elbows and reducers of the pipeline, and this situation is also prone to occur in some moving equipment and connected pipelines. Generally, operators cannot observe these positions directly; and once blockage occurs, the operation of the device may be unstable or even some equipment may stop. Observing the suspected part through the endoscope can easily determine whether the blockage or the fluctuation of production parameters caused by other reasons can be easily judged, and the hidden danger can be eliminated in a timely and effective manner.

3 Advantages of industrial endoscopes

Industrial endoscopes can observe positions that the operator cannot directly observe at close range. The instrument itself is easy to operate and does not require a lot of consumables. It can also be equipped with a corresponding length of fiber optic wire according to the requirements of use; generally, it can meet the needs of the site with a wire of about 10 meters. The endoscope itself has the function of adjusting the direction of the video probe and the function of taking pictures and recording, which can easily find a suitable observation position and record it. It can be said that industrial endoscopes are indispensable inspection equipment in the production and maintenance of oil refineries.

As a green and clean energy, wind power has been widely distributed in the global market in recent years, gradually replacing traditional firepower and nuclear power and other high-risk and high-polluting energy generation.

All the existing wind power equipment requires regular inspection and maintenance. Since most of the wind power generation equipment is built in remote areas, each inspection and maintenance requires a lot of manual work. If these maintenance engineers have some convenient inspection equipment that can be carried with them to inspect the parts that are invisible to the eyes, this will greatly improve their work efficiency. Industrial video endoscopes are such a perfect tool.

Both wind power enterprise users and maintenance service companies have begun to use Borescope (Industrial Endoscope) for regular inspection and maintenance of wind power equipment.

Most people think that Borescope inspection is very complicated and requires professionally trained personnel to operate it. Many wind power companies have to hire a third-party inspection company to do this service. In fact, they can do this work by themselves.

Yateks, a 20-year-old factory located in Shenzhen, China, specializes in R&D and manufacturing of Industrial Borescopes, our mission is to bring more convenient and cost-effective equipment to the non-destructive testing industry. Through joint efforts with partners and distributors in different industries around the world, we have developed a variety of Borescopes which suitable for wind power industry testing. Among of them, this new Q series is the best choice.

The Borescope could be used to inspect the wind turbine gearboxes, bearings, Blade and generators of wind turbines. This new Q series is very suitable for wind power industry applications. It adopts the most advanced image processing technology, with a megapixel camera, which can make images high-definition and delicate.

There are many polished surfaces of the inspected objects in the wind power gearbox, and it is difficult to see the defects and cracks of the gear. With this Q series Borescope, you can see a clear image, any cracks or defects can be seen clearly.

The bearing part is the source of gear failure, which can cause string movement and abnormal noise in the meshing of the high-speed shaft and the intermediate shaft gear. When a bearing defect is detected, we recommend that you replace the corresponding failed bearing and other bearings in time to avoid the risk of secondary maintenance.

Bearings are also the hardest hit area for light reflection, even worse than gears. Bearings in the squeezed state may be severely worn, and the metal shavings that fall off will cause new wear areas. During inspections, they are often unclear due to reflections or limited depth of field. The automatic brightness adjustment of the Borescope can solve this problem.

The 5.5-inch oled high-definition touch screen makes the image clear even in the sun, which is very suitable for outdoor detection, with a resolution of up to 1920*1080. The characteristics of the screen itself can make the image more three-dimensional and the details more delicate. In addition, advanced backlight technology and color filtering technology are used to make this screen bright, adjustable, and eye-friendly.

A host can be equipped with a variety of probe tubess of different diameters and lengths to meet different detection requirements, and the connection between the host and the probe adopts the HDMI socket, which is more reliable.

The camera head is interchangeable, once the camera is damaged, there is no need to send it back to the pipeline or the whole machine for repair, just simply replace it with the camera, which greatly alleviates the customer’s worries and pains about the long after-sales delivery period.

Multi-screen display, by Wifi or wireless, easy to share.

When the inspectors arrive at the scene, they can share the fault situation at the scene in real time through the network. Remote professional and technical personnel can more accurately guide the inspection of key components by front-line inspection personnel through the network, including defect measurement and analysis of key components.

The handheld design with a a strong and durable bracket is very suitable for outdoor work, and the interface is as simple and easy to operate as a smart phone. Whether you want to take photos, video or edit pictures, it is very convenient and quick.

Yateks has distributors and partners in many countries around the world, and can provide you with on-site demonstrations and operation training to solve your after-sales problems.

Industrial Borescope, as a remote visual extension of human eyes, is an essential NDT tool to view those narrow and dark areas which is difficult to access. With the development of modern industry, it is more and more wide needed in many different industries for quality check in many procedures during R&D, production , and maintenance for machinery. The automotive industry is one of the most typical industries served by borescopes to do many inspections, including engine (cylinder, cylinder head, cylinder liner, valve, piston top，etc.), water pump drain hole, coolant leakage, radiator fixation, brake pad, fuel pipeline and tank etc. Here I’ll main introduce the car engine inspection camera.

Why industrial borescope inspection is important to car engine

Car engine provides the driving force for vehicles. Similar to the human heart, the engine is the heart of automotive vehicles, which decides the car’s key performance such as whether the driving force is plenty or not, the response speed is quick or not and the fuel consumption is low or not，etc. So important is that the quality of its all components needs to ensure in all procedures.

With the increasing competition in the automotive industry market, car manufacturers are more devoted to developing and producing car engines of good quality and offering nice maintenance services. In these processes, the automobile engine inspection camera plays an important role to help supervise the quality.

For example, during the development & production, the car engine inspection camera can use to check the internal surfaces to see if there are cracks, burs, and defects, etc., so that those unqualified engine cylinders and cylinder heads won’t use in car assembly, to avoid causing customers’ complaints and increasing maintenance cost. During the car MRO(Maintenance and Repair Operating), the borescope probe can insert into some key areas to inspect whether there is oil leakage, rust, cylinder scuffing, carbon deposition, dust blocking, cracks, and breaks, etc. without disassembling the whole engine. It is high efficient non-invasive inspection tool, which can help you save lots of time and cost, and offer good proof(inspection photos of certain parts) to your customers.

How to select a suitable car engine inspection camera

1.Excellent image quality with sufficient light.

theImage quality depends on lots of factors such as camera sensor resolution, optical lens focus and uniformity, display screen resolution, image processing technology and light source, etc… While choosing a car engine inspection camera, it’s not wise to only stare at the parameter of resolution. It is best to refer to comprehensive parameters that require field test results. When you do inspections for different areas of the car engines, you’ll find whether the image quality is good enough and the light is sufficient enough to inspect all required areas.

2.Flexible articulation and probe bending.

Borescopes with articulation are more obvious advantages than borescopes without articulation, as it allows the probe to controll to bend for different directions to reach the certain inspected surface. The flexibility of articulation main depends on the design of the steering structure. Not only the steering mechanism should be good enough to support flexible articulation, but also the inside steering wires need to be durable enough to withstand many bending at the bending area. When you choose a car engine inspection camera, one important point is to pay attention to the articulation smoothness to see whether it’s easy and flexible enough to reach where to inspect.

3.Wear-resistant insertion tube.

Automotive inspection, especially the inspection of cylinder head, requires high frequency use of industrial borescopes. In this such applications, wear-resistant insertion tube is quite important to withstand such intensive use of inserting and withdrawing. There are main three types of materials for industrial borescopes: stainless spiral tube, stainless-braided tube, tungsten-braided tube. The tungsten-braided tube is the most wear-resistant.

What Yateks car engine inspection camera can do for you?

As a manufacturer of industrial borescope, Yateks has been devoted to developing and producing different borescopes for different industries such as aviation, the automotive, casting, chemical processing, power generation, manufacturing, pharmaceutical industry, and so on. For car engine inspections, our industrial borescopes have used and liked by many famous car manufacturers and service providers such as Audi, BMW, Volkswagen, and Nemak, etc. in daily use of quality control and MRO.

Why do they love the yateks car engine inspection cameras?

Yateks M and M-ADV Series industrial borescope has excellent image quality, flexible articulation with good durability of over 100,000times’ bending, and four-layer tungsten-braided insertion tubes for the automotive industry use. What’s more,

Yateks has been inputting lots of effort into quality control from the raw material, assembly process, and finished products, with a specialized quality control team and different testing devices, as we full understand how important it is for an enterprise. By following a strict quality control system, Yateks can not only offer you excellent samples/demonstration units but also offer you manufactured borescopes at good quality in line with the samples. In a word, if you are in the automotive industry and you need lots of car engine inspection cameras to allow them to different production lines, Yateks M Series will be a great option for you, as we can handle your batch order well and ensure the quality for your every unit.

With the development of modern science and technology, industrial borescope is gradually used for inspection of hard-to-reach places such as drains, sewer pipes, heating vents, air ducts, furnaces, motors, pistons, gears, valves, compressors, boilers and condenser tubes.

Thanks to flexible cables and lightweight body, borescope cameras are extremely agile and portable. An industrial borescope inspection camera helps you locate potential problems quickly and easily without the need to dismantle a system or machine, allowing corrective measures to be taken before costly downtime occurs.

In the maintenance of aeroengines, it is mainly used for inspection of engine turbine blades, compressor blades and combustion chambers, which plays an important role in improving engine utilization and ensuring safety and reliability.

Today’s civil aircraft mostly use high-duct turbofan engines. It is mainly composed by fans, compressors, combustion chambers, turbines and accessory systems. Its comprehensive performance is an important factor to ensure the utilization of civil aircraft and flight safety. In the past few decades, the main method of civil aircraft maintenance was timing (HT) maintenance. It requires equipment or parts to be regularly repaired according to the Instruction manual. This may cause some equipment or components to be disassemble when they are in good condition, just because it is time to inspect. This will result in waste of manpower and material resources inevitably. With the introduction of advanced civil aircraft and engines and the development of science and technology, OC maintenance is rapidly becoming widely used in civil aircraft inspection. It requires periodic inspections of equipments or components against certain physical standards to determine whether they can continue to be used until the next planned inspection or inspection cycle.

An airline found that there was a problem with the combustion chamber when performing borescope inspection on the A310 – 2303 aircraft engine. Due to the correct judgment , avoiding the early hoisting of the engine, which help the company save $1,000,000.00 cost.

Yateks manufacturer specialized in NDT Test & Measurement Equipment for decades. Mainly produce  2.8mm-6mm diameter 360° rotation arbitrarily Turbine endoscope, Auto/Engine endoscopes,industrial borescopes, videoscopes, police military use endoscopes, fiber optic endoscopes, Thermal video endoscopes, Infrared Anti-terrorism endoscopes, UV endoscope with exceptional quality and pretty competitive price. 1 Year Quality Warranty and Lifetime maintenance.

 

With the rapid development of my country’s railway transportation industry, higher requirements are put forward for the daily maintenance, equipment maintenance and fault diagnosis of railway diesel locomotives. Oil analyzers play an important role in the monitoring and diagnosis of railway diesel locomotives.

According to relevant research data reports, more than 70% of mechanical equipment failures are caused by wear and tear. About 1/3~1/2 of the energy produced in the world is consumed by friction loss. With the rapid development of modern industry, how to ensure the safe and stable operation of machinery and equipment, reduce the occurrence of failures and reduce maintenance costs has become a problem that must be solved. On the basis of scientific and reasonable lubrication technology, the establishment of mechanical equipment wear condition monitoring and fault diagnosis technology has significant social and economic benefits. Oil analysis is one of the most effective non-destructive monitoring methods.

Oil analyzers have been used for a long time in the monitoring and application of railway internal combustion engines. The early oil analyzers only routinely analyzed the physical and chemical indicators of new and in-use lubricating oils, which was very simple. With the rapid development of railways, railways are developing towards heavy load, high speed, automation and high efficiency. Maintenance costs and downtime losses for diesel locomotives have also increased dramatically. The traditional planned maintenance method has high maintenance costs. It cannot maximize the efficiency of locomotive use. The railway system has gradually introduced advanced oil analysis instruments such as chromatography, spectroscopy and ferrography.

These instruments have the advantages of simple operation, convenient diagnosis, high efficiency and accurate results. It has been widely used in the field of internal combustion engine fault diagnosis. However, due to the differences of various diesel locomotives in structural design, manufacturing process, raw material materials, etc. There is no uniform standard for the characteristic parameters of various oil analyzers in fault diagnosis. This brings great inconvenience to the oil monitoring personnel and locomotive maintenance personnel in the locomotive depot. It also seriously affects the accuracy of fault diagnosis by means of oil analysis.

Yateks recommends two oil analysis products independently developed and produced by Yateks

Let’s take a look at the content and methods of commonly used oil analysis:

1. Wear particle analysis

Contents of analysis: number, size distribution, composition and shape/type of abrasive particles Analysis methods: ferrography, emission spectroscopy, particle counting, etc. Goal: Identify major wear locations, degree of wear and mechanism/cause

2. Oil deterioration and pollutant analysis

Contents of analysis: oil deterioration and types and quantities of pollutants    Analysis methods: infrared spectroscopy, emission spectroscopy, ferrography and other methods  Objective: To determine oil availability and related system failures and causes

3. Analysis of conventional physical and chemical indicators

Contents of analysis: viscosity, flash point, moisture, total base value/acid value, etc. Analysis method: viscosity/flash point/moisture meter, titration method, spot test, etc. Objective: To determine oil availability and related subsystem failures and causes

The role of oil analysis and diagnosis technology

1. Basic tools for condition-based maintenance and risk detection
2. Lubrication, wear and related fault diagnosis
3. Determine the best lubricant (lubricant/grease)
4. Realize lubrication monitoring and determine a reasonable oil change interval
5. Extend the overhaul interval and reduce equipment maintenance costs

Heat exchanger refers to the process of transferring heat from hot fluid to cold fluid, so that different temperature differences are generated inside and outside the pipe to achieve temperature regulation.

Heat exchangers usually use water as a medium to generate high temperature and high pressure steam by heating. Heat exchangers can be mainly divided into two types: multi-tube heat exchangers and plate heat exchangers. Multi-tube heat exchangers are widely used in factories and are commonly used piping equipment in factories. Compared with the multi-tube heat exchanger, the size of the plate heat exchanger is easier to reduce, and the medium can pass through the guide plate composed of grooved plates.

What problems can occur with heat exchangers?

During the long-term use of the heat exchanger, due to frequent contact with water vapor and other factors, abnormal conditions such as scale, corrosion, blockage, cracks, and sediments are likely to occur in the heat exchanger, which seriously affects its use efficiency. Usually the heat exchanger with severe corrosion can only be scrapped.

Why do you need an industrial endoscope to inspect heat exchanger?

Don’t wait until a serious problem occurs to check the condition of the heat exchanger. Regular visual inspections are a critical part of ensuring manufacturing or power generation operations. Preventive maintenance, including remote visual inspections, is more economical than waiting for a breakdown to be repaired.

What are the advantages of Yateks M series Articulating Borescope?

Therefore, it is particularly important to regularly detect whether there is any abnormality in the internal structure of the heat exchanger. Yateks is a professional industrial endoscope brand. The M series high-definition industrial endoscopes can efficiently deal with the daily inspection and maintenance tasks of heat exchangers and other equipment. The M series high-definition industrial endoscope has the advantages of 360° all-round steering function of the probe, mega high-definition pixels, waterproof, dustproof and high temperature resistance, long battery life and other advantages. At the same time, the endoscope has the recording function, you can test the equipment very well operating status. It can be used for non-destructive testing and maintenance in aerospace, power plants, urban rail transit and other fields.

Special equipment is a type of equipment that is more dangerous and even involves life safety. The quality of the weld seam, especially the inspection of welded joints, is very important. However, in the manufacturing process of special equipment, due to the limitation of space and human sight, it is difficult for inspectors to carry out perfect inspection of the welded joints of special equipment. The application of Yateks industrial borescope in the manufacture and inspection of welding joints of special equipment is an efficient solution that is different from traditional inspection methods.

Take pressure-bearing equipment in special equipment as an example. Welded joint inspection is an important part of pressure equipment manufacturing quality inspection. In particular, the D-type welded joints connected to the shell, such as nozzles, flanges, and reinforcing rings. It not only has the characteristics of stress concentration, which easily affects the welding quality, but also due to the complex structure, ultrasonic flaw detection, radiographic inspection, etc. are difficult to play a role, so the traditional process often does not set inspection points in the manufacturing process of welded joints, and wait until the end of manufacturing. At the stopping point, the withstand voltage test is carried out, and at this time, whether or not a problem is found, the ideal inspection time has been missed. Therefore, it is a traditional problem that the weld quality of many pressure vessels is difficult to be effectively detected.

Difficulties in manufacturing and inspection of welded joints for special equipment

The use of Yateks industrial borescope can detect the quality of welded joints in the manufacturing process of special equipment, find manufacturing defects early, and provide the possibility for correction or compensation. Using a probe with a diameter of millimeters, through the hand holes in the upper and lower drums or headers, close to the welding seam, through high-quality imaging and high-power rear lighting, reconstruct high-definition, color-realistic welding seam images, Visualize areas of welds that are traditionally invisible. The quality of the opening of the pipe hole, the welding quality of the fillet joint and the extension length of the pipe end, etc. can be displayed on the display screen.

What can be checked using Yateks industrial borescope? Here are some examples：

1. Observe the internal manufacturing conditions of the boiler feed water pipe holes, the opening conditions, the processing conditions of the pipe ends and the welding quality of the pipe holes.
2. Intuitively understand the length of the pipe end of the sewage pipe protruding from the inner wall of the boiler shell to ensure the normal sewage function and avoid the formation of long-term fouling.
3. Perform an internal inspection on the manufacturing and processing quality of the pipe joints inside the boiler header.
4. Check the welding quality of the longitudinal annular seam of the vertical water-tube boiler, and timely find the situation that foreign objects such as welding slag block the sewage pipe.

 

All in all, Yateks industrial borescope is a non-destructive testing tool that expands the scope of the human eye. It can remove the detection “blind spot” that cannot be reached by human sight. In the manufacturing process of special equipment, the application prospect of welding seam inspection is broad. It can be combined with other non-destructive testing methods to better ensure the quality and safety of special equipment.