Portable dew point meter detection auxiliary tool

Abstract

The utility model discloses a portable dew point appearance detection auxiliary frock relates to detection instrument technical field. It includes three -way connecting piece, three -way connecting piece includes the vertical interface in three -way connecting piece middle and the horizontal interface no.

Description

Technical Field

[0001] This utility model relates to the field of detection instrument technology, and in particular to an auxiliary tooling for a dew point meter used to measure the moisture content in a gas. Background Technology

[0002] Dew point meters are crucial instruments for measuring the moisture content of gases, and are widely used in fields with strict requirements for gas humidity control, such as compressed air systems, natural gas pipelines, semiconductor manufacturing, and the pharmaceutical industry. In industrial production, accurately measuring the moisture content of gases is paramount, as excessive humidity can lead to a series of serious problems. For example, in compressed air systems, high humidity can cause equipment to rust and corrode, affecting its normal operation and lifespan; in natural gas pipelines, moisture may form hydrates that clog the pipes, reducing transmission efficiency; and in the semiconductor and pharmaceutical industries, improper humidity control directly impacts product quality and performance.

[0003] Portable dew point meters, with their compact size, portability, and ease of operation, can quickly and flexibly meet the testing needs of industrial sites. Unlike traditional fixed dew point meters, they are not limited by location and can be carried to various testing points at any time, providing timely and accurate gas humidity data for various industries. In emergency situations such as equipment maintenance and troubleshooting, they can quickly play a role, helping technicians to understand the gas humidity status in a timely manner and take measures to ensure smooth production.

[0004] Its detection principle is based on the definition of dew point. Dew point refers to the temperature at which a gas, cooled under specific pressure, can condense into the first drop of liquid. Under a certain pressure, there is a specific physical relationship between the moisture content of a gas and its dew point temperature: the higher the moisture content, the higher the dew point temperature, and vice versa. By measuring the dew point temperature, the moisture content of the gas can be indirectly determined.

[0005] It typically employs a high-precision dew point sensor to detect temperature changes in the gas as it cools and droplets form. After the gas to be measured enters the dew point meter, it is cooled by a specific cooling device, and the sensor monitors the gas temperature change in real time. When the gas reaches its dew point temperature, the sensor detects the appearance of droplets and converts the signal into an electrical signal, which is then transmitted to the instrument's control system. The control system, based on a preset algorithm and calibration parameters, converts the electrical signal back into a dew point temperature value, calculates the gas's moisture content, and finally displays the measurement result on the screen.

[0006] However, numerous problems arise when using portable dew point meters in industrial settings, affecting measurement accuracy. The complex environment, including moisture, dust, oil, and other chemicals, can interfere with the gas being measured, altering its composition and humidity levels, leading to inaccurate measurement results. For instance, in high-humidity environments, moisture may enter the measurement system, causing readings to be too high; excessive dust can adhere to the sensor surface, affecting its sensitivity and accuracy, resulting in unstable results.

[0007] Portable dew point meters require rapid testing in various environments. Gas sampling and transmission methods often struggle to ensure stable gas flow and adequate contact with the dew point sensor. During on-site testing, gas flow is affected by factors such as airflow fluctuations and pipeline layout, potentially leading to turbulence and uneven flow distribution. Some gas may not effectively pass through the sensor or have insufficient contact time, resulting in inaccurate measurements. Furthermore, when testing gas within a pipeline, excessively high gas velocity or localized resistance such as bends can cause uneven gas flow near the sensor, affecting measurement accuracy.

[0008] Furthermore, the sensor in a portable dew point meter is a core component and is sensitive to the environment. Properly storing the sensor to prevent contamination and damage when the instrument is not in use is a challenge. Prolonged exposure to high humidity can cause moisture to adhere to the sensor's surface, affecting response speed and measurement accuracy, and potentially leading to short circuits in internal components due to moisture, thus shortening its lifespan. Dust, oil, and other contaminants in the field also easily adhere to the sensor, are difficult to clean, and affect performance.

[0009] Although some auxiliary devices related to portable dew point meter detection have appeared on the market, these devices have revealed many problems and have significant limitations in practical applications.

[0010] From a structural design perspective, some auxiliary devices, in pursuit of functional versatility, employ complex structures with numerous components and intricate connection methods. This not only significantly increases the overall size and weight of the device, greatly reducing portability and causing considerable inconvenience for operators during transport and on-site deployment, but also makes the assembly process cumbersome, often requiring skilled technicians with specialized knowledge to complete the assembly. This not only increases labor costs but also prolongs preparation time before testing, reducing work efficiency.

[0011] Existing auxiliary devices perform poorly in terms of stability and reliability. Due to insufficient consideration of the complex environment and usage requirements of actual industrial sites during the design phase, some devices exhibit unreasonable structural designs, and the quality of selected components varies considerably. During use, gas leaks are prone to occur, preventing the target gas from accurately entering the measurement system and affecting the accuracy of the measurement results. Loose connections also frequently occur, causing measurement interruptions and potentially generating additional interference signals due to unstable connections, further interfering with the measurement results. Moreover, once these problems occur, the maintenance and repair of the devices often require significant manpower and resources, increasing the company's operating costs.

[0012] In terms of functionality, existing auxiliary devices are relatively limited and cannot meet the diverse testing needs of industrial sites. Some devices only have simple gas sampling functions and cannot effectively pre-treat the sampled gas, such as filtering or drying, resulting in impurities or moisture in the gas entering the portable dew point meter, affecting the accuracy of the measurement. Other devices, while providing some protection for the sensor, cannot solve the problem of insufficient contact between the gas and the sensor, failing to ensure that the gas flows stably and uniformly through the sensor, thus preventing accurate measurement.

[0013] Therefore, it is essential to develop a portable dew point meter detection auxiliary tooling that is simple in structure, easy to assemble, and has comprehensive functions. Summary of the Invention

[0014] This utility model provides a portable dew point meter detection auxiliary fixture. The auxiliary fixture has a simple structure, is easy to assemble, and has comprehensive functions. It can effectively eliminate the interference of external factors on the measurement accuracy during the detection process, and can also achieve long-term and proper isolation and storage of the dew point sensor.

[0015] To solve the above problems, the technical solution adopted by this utility model is: A portable dew point meter detection auxiliary fixture includes a three-way connector. The three-way connector includes a vertical interface located in the middle of the three-way connector and two horizontal interfaces located on both sides of the three-way connector. The vertical interface is connected in sequence to an adapter and a discharge pipe, and the discharge pipe is equipped with a discharge pipe shut-off valve. The horizontal interface is connected in sequence to an adapter and a sampling pipe, and the sampling pipe is equipped with a sampling pipe shut-off valve.

[0016] In the above technical solution, a more specific technical solution may be: the tee connector is an internal thread tee connector, the first adapter is an external thread adapter, and the second adapter is an external thread adapter.

[0017] Furthermore, a straight connector for length extension is provided between the horizontal interface one and the adapter two.

[0018] Furthermore, the straight connector includes an external thread straight connector and an internal thread straight connector used in combination. The external thread straight connector is connected to the first horizontal interface, and the internal thread straight connector is connected to the second adapter.

[0019] Furthermore, the tee connector is an R1 / 2 internal thread tee connector, the adapter is an R1 / 2 external thread to φ8 adapter, the discharge pipe is a φ8 discharge pipe, and the discharge pipe shut-off valve is a φ8 needle type discharge pipe shut-off valve.

[0020] Furthermore, the second adapter is an R1 / 2 external thread to φ8 adapter, the sampling pipe is a φ8 sampling pipe, and the sampling pipe stop valve is a φ8 needle-type sampling pipe stop valve.

[0021] Furthermore, the tee connector is a stainless steel tee connector, the first adapter is a stainless steel adapter, the discharge pipe is a stainless steel discharge pipe, the discharge pipe stop valve is a stainless steel discharge pipe stop valve, the second adapter is a stainless steel adapter, the sampling pipe is a stainless steel sampling pipe, the sampling pipe stop valve is a stainless steel sampling pipe stop valve, and the straight connector is a stainless steel straight connector.

[0022] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: 1. This utility model can isolate the gas to be tested from the complex industrial environment and introduce the gas into the measurement system through a special sampling pipeline. This reduces the possibility of interference factors such as moisture, dust, oil and other chemicals in the air mixing into the gas to be tested, thereby avoiding these impurities from changing the gas composition and humidity. This effectively reduces the deviation of measurement results caused by external environmental factors and improves the accuracy of measurement.

[0023] 2. The design of the three-way connector and the matching pipes and valves of this utility model helps to guide the gas to make stable and sufficient contact with the subsequent dew point sensor, thereby reducing turbulence and uneven flow during gas transmission, ensuring that the gas can flow evenly through the sensor, enabling the sensor to accurately sense the temperature change of the droplets that appear when the gas cools, and thus accurately measure the dew point temperature and calculate the moisture content of the gas.

[0024] 3. When the portable dew point meter is not in use, this utility model can isolate the dew point sensor from the external gas environment by closing the sampling pipeline shut-off valve and the discharge pipeline shut-off valve. This can prevent the sensor from being exposed to high humidity air for a long time, avoid moisture adsorbing on the sensor surface, and prevent it from affecting its response speed and measurement accuracy. At the same time, it can also reduce the adhesion of dust, oil and other impurities to the sensor, reduce the risk of moisture-induced short circuits of internal sensor components, and extend the service life of the sensor.

[0025] 4. This utility model provides a straight connector for length adjustment between the horizontal interface one and the adapter two, allowing operators to flexibly select a suitable length of straight connector for installation according to actual distance requirements. This makes it easy to adjust the overall length of the sampling pipeline, ensuring that the sampling pipeline can accurately and reasonably connect the sampling point and subsequent measuring equipment, thus meeting the testing requirements of different industrial sites. Attached Figure Description

[0026] Figure 1This is a schematic diagram of the structure of this utility model.

[0027] Figure 1 In the diagram, the following connectors are listed: 1 – Tee connector, 2 – Vertical interface, 3 – Horizontal interface one, 4 – Horizontal interface two, 5 – Adapter one, 6 – Discharge pipe, 7 – Discharge pipe shut-off valve, 8 – Adapter two, 9 – Sampling pipe, 10 – Sampling pipe shut-off valve, 11 – Straight connector, 11-1 – External thread straight connector, 11-2 – Internal thread straight connector. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings: Example

[0029] like Figure 1 As shown, a portable dew point meter detection auxiliary fixture includes a three-way connector 1. The three-way connector 1 includes a vertical interface 2 located in the middle of the three-way connector 1 and horizontal interfaces 3 and 4 located on both sides of the three-way connector 1. The vertical interface 2 is connected in sequence to an adapter 5 and a discharge pipe 6, and the discharge pipe 6 is equipped with a discharge pipe shut-off valve 7. The horizontal interface 3 is connected in sequence to an adapter 8 and a sampling pipe 9, and the sampling pipe 9 is equipped with a sampling pipe shut-off valve 10. That is, through the design of the three-way connector 1 and the matching pipes and valves, it helps to guide the gas to make stable and sufficient contact with the subsequent dew point sensor, thereby reducing turbulence and uneven flow of the gas during the transmission process, ensuring that the gas can flow evenly through the sensor, so that the sensor can accurately sense the temperature change of the droplets that appear when the gas cools down, and thus accurately measure the dew point temperature and calculate the moisture content of the gas. Meanwhile, when the portable dew point meter is not in use, the dew point sensor can be isolated from the external gas environment by closing the sampling pipeline shut-off valve 10 and the discharge pipeline shut-off valve 7. This prevents the sensor from being exposed to high humidity air for extended periods, avoiding moisture adsorption on the sensor surface, which could affect its response speed and measurement accuracy. It also reduces the adhesion of dust, oil, and other impurities to the sensor, lowering the risk of moisture-induced short circuits in internal components and extending the sensor's lifespan. This achieves both effective elimination of external factors interfering with measurement accuracy during the detection process and proper long-term isolation and storage of the dew point sensor.

[0030] T-connector 1 is an internally threaded tee connector, adapter 5 is an externally threaded adapter, and adapter 8 is an externally threaded adapter. This invention utilizes the self-locking characteristic of threaded connections to make the connection between components more stable. In the complex environment of industrial sites, it can effectively prevent loosening of connections due to vibration, collisions, etc., ensuring no gas leakage and thus ensuring the accuracy of measurement results. At the same time, the threaded connection method is simple to operate, requiring no special tools or skills, allowing operators to quickly and easily install and disassemble this invention. This not only improves work efficiency but also facilitates the maintenance and upkeep of the tooling, reducing operating costs.

[0031] A straight connector 11 for length extension is provided between the horizontal interface 13 and the adapter 28. This structure allows operators to flexibly select a suitable length of straight connector 11 for installation according to actual distance requirements, thereby easily adjusting the overall length of the sampling pipe 9 and ensuring that the sampling pipe 9 can accurately and reasonably connect the sampling point and subsequent measuring equipment to meet the testing requirements of different industrial sites.

[0032] The straight connector 11 includes an external threaded straight connector 11-1 and an internal threaded straight connector 11-2 used in combination. The external threaded straight connector 11-1 is connected to the horizontal interface 3, and the internal threaded straight connector 11-2 is connected to the adapter 8. The number of external threaded straight connectors 11-1 and internal threaded straight connectors 11-2 used in combination is determined according to the actual distance requirements.

[0033] T-connector 1 is an R1 / 2 internal thread tee connector, adapter 5 is an R1 / 2 external thread adapter to φ8 connector, discharge pipe 6 is an outer diameter φ8 discharge pipe, and discharge pipe shut-off valve 7 is an outer diameter φ8 needle type discharge pipe shut-off valve.

[0034] Adapter 2 8 is an R1 / 2 external thread to φ8 adapter, sampling pipe 9 is an outer diameter φ8 sampling pipe, and sampling pipe stop valve 10 is an outer diameter φ8 needle type sampling pipe stop valve.

[0035] T-connector 1 is a stainless steel tee connector; adapter 1; adapter 5 is a stainless steel adapter 1; discharge pipe 6 is a stainless steel discharge pipe; discharge pipe stop valve 7 is a stainless steel discharge pipe stop valve; adapter 2; adapter 2; sampling pipe 9 is a stainless steel sampling pipe; sampling pipe stop valve 10 is a stainless steel sampling pipe stop valve; and straight connector 11 is a stainless steel straight connector. All of these components are made of stainless steel, giving them superior corrosion resistance. They can withstand various corrosive media in industrial environments, preventing rust and damage, ensuring long-term stable operation of components, and extending the overall service life of the tooling. At the same time, the high strength and good toughness of stainless steel allow it to withstand high pressure and mechanical stress, reducing the risk of deformation and cracking, lowering the frequency of maintenance and replacement, saving operating costs, and reducing production interruptions.

[0036] When not in use, install the dew point sensor of the dew point meter on the remaining horizontal interface 4 of the three-way connector 1 of this utility model, open the discharge pipe shut-off valve 7 and the sampling pipe shut-off valve 10, and blow it clean with a dry gas medium. Close the discharge pipe shut-off valve 7 and the sampling pipe shut-off valve 10. This can prevent the dew point sensor from being contaminated by high humidity air for short-term storage. For long-term storage, it needs to be purged with a dry gas medium to maintain positive pressure. During measurement, simply open the discharge pipe shut-off valve 7 and the sampling pipe shut-off valve 10, align the sampling port with the medium measurement point interface, and some of the measured gas medium will flow into this utility model, allowing for rapid response and measurement unaffected by the surrounding environment.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A portable dew point meter detection auxiliary tool, characterized in that: The device includes a tee connector, which has a vertical interface in the middle and two horizontal interfaces on either side of the tee connector. The vertical interface is connected in sequence to an adapter and a discharge pipe, and the discharge pipe is equipped with a discharge pipe shut-off valve. The horizontal interface is connected in sequence to an adapter and a sampling pipe, and the sampling pipe is equipped with a sampling pipe shut-off valve.

2. The portable dew point meter detection auxiliary fixture according to claim 1, characterized in that: The tee connector is an internal thread tee connector, the first adapter is an external thread adapter, and the second adapter is an external thread adapter.

3. The portable dew point meter detection auxiliary fixture according to claim 1 or 2, characterized in that: A straight connector for length extension is provided between the horizontal interface one and the adapter two.

4. The portable dew point meter detection auxiliary fixture according to claim 3, characterized in that: The straight connector includes an external threaded straight connector and an internal threaded straight connector used in combination. The external threaded straight connector is connected to the horizontal interface one, and the internal threaded straight connector is connected to the adapter two.

5. The portable dew point meter detection auxiliary fixture according to claim 4, characterized in that: The tee connector is an R1 / 2 internal thread tee connector, the adapter is an R1 / 2 external thread to φ8 adapter, the discharge pipe is a φ8 discharge pipe, and the discharge pipe shut-off valve is a φ8 needle type discharge pipe shut-off valve.

6. The portable dew point meter detection auxiliary fixture according to claim 5, characterized in that: The second adapter is an R1 / 2 external thread to φ8 adapter, the sampling pipe is a φ8 sampling pipe, and the sampling pipe stop valve is a φ8 needle-type sampling pipe stop valve.

7. The portable dew point meter detection auxiliary fixture according to claim 6, characterized in that: The tee connector is a stainless steel tee connector, the first adapter is a stainless steel adapter, the discharge pipe is a stainless steel discharge pipe, the discharge pipe stop valve is a stainless steel discharge pipe stop valve, the second adapter is a stainless steel adapter, the sampling pipe is a stainless steel sampling pipe, the sampling pipe stop valve is a stainless steel sampling pipe stop valve, and the straight connector is a stainless steel straight connector.

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