A new generator fixed cold water hydrogen leakage detection device

CN224744511UActive Publication Date: 2026-09-11HEBEI DATANG INTL TANGSHAN BEIJIAO THERMAL POWER GENERATION
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Patent Information

Application Number
CN202522496707.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-25
Publication Date
2026-09-11
Estimated Expiration
2035-11-25

AI Technical Summary

Technical Problem

[0003]目前的定冷水漏氢检测装置,通常是对氢气本身以及气压进行检测,但由于整个冷却系统的体量较大,因此当泄漏量较小时,气压的变化较慢,因此检测氢气泄漏存在滞后性,一旦定冷水发生泄漏,氢气没有第一时间析出,也会导致泄漏的情况无法及时检测到,而温度也会改变气压,因此当环境温度存在变化时,也会导致检测结果的误差,为此就需要一种新型的检测装置来提高检测的准确性

Benefits of technology

[0013]1、本设计的一种新型发电机定冷水漏氢检测装置,内管用于在定冷水冷却系统中运输定冷水,由于内管和外管之间设置了防水透气膜,因此一旦内管和外管发生破损,定冷水在短时间内不会发生泄漏,因此定冷水不会进入到外壳内,而当破损时,会有氢气析出,进而透过防水透气膜,进入到外壳内。

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Abstract

This utility model relates to the field of constant cooling water detection technology, specifically a novel generator constant cooling water hydrogen leakage detection device. It includes a water supply pipe with a housing fixedly connected to it. A detection assembly is disposed inside the housing, comprising multiple slip rings, multiple pressure sensors, and multiple springs. The slip rings are slidably connected to the inner wall of the housing and are all fitted onto the water supply pipe. The pressure sensors are fixedly connected to the inner wall of the housing and the slip rings. One end of each spring is connected to a pressure sensor, and the other end is fixedly connected to both the slip rings and the inner wall of the housing. This utility model can detect hydrogen leakage in a constant cooling water system with high accuracy and can pinpoint the location of the leak based on the detection results.
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Description

Technical Field

[0001] This utility model relates to the field of constant cooling water detection technology, specifically a novel generator constant cooling water hydrogen leakage detection device. Background Technology

[0002] Constant cooling water refers to the cooling medium in a stable cooling water system used for heat dissipation and temperature control in industrial production or equipment operation. Its pH value is usually between 7 and 9. Constant cooling water is usually present in water tanks and pipes in the cooling system. In the event of a leak, hydrogen gas will be released.

[0003] Current hydrogen leakage detection devices for constant-cooling water typically detect the hydrogen itself and its pressure. However, due to the large size of the entire cooling system, the pressure change is slow when the leakage is small, resulting in a lag in hydrogen leakage detection. If a leak occurs in the constant-cooling water, the hydrogen may not be released immediately, making the leak undetectable. Furthermore, temperature changes can alter the pressure, leading to errors in the detection results when the ambient temperature fluctuates. Therefore, a new type of detection device is needed to improve the accuracy of the detection. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a novel generator constant cooling water hydrogen leakage detection device, which solves the problems mentioned in the background section.

[0005] The technical solution to achieve the purpose of this utility model is as follows: a novel generator constant cooling water hydrogen leakage detection device, including a water supply pipe, a housing fixedly connected to the water supply pipe, a detection component inside the housing, the detection component including multiple slip rings, multiple pressure sensors and multiple springs, the multiple slip rings being slidably connected to the inner wall of the housing and all the slip rings being sleeved on the water supply pipe, the multiple pressure sensors being fixedly connected to the inner wall of the housing and the multiple slip rings respectively, one end of the multiple springs being connected to the multiple pressure sensors respectively, and the other end of the multiple springs being fixedly connected to the multiple slip rings and the inner wall of the housing respectively.

[0006] As a further technical solution of this utility model, the water supply pipe includes an inner pipe and an outer pipe, which together form a double-layer structure. The surface of the outer pipe is smooth, and the outer pipe is slidably connected to multiple slip rings.

[0007] As a further technical solution of this utility model, the water supply pipe also includes a waterproof and breathable membrane, which is fixedly connected between the inner pipe and the outer pipe.

[0008] As a further technical solution of this utility model, the waterproof and breathable membrane is made of ePTEF material, which water cannot pass through its surface, but hydrogen can pass through.

[0009] As a further technical solution of this utility model, the detection component also includes a gasket, which is fixedly connected to multiple pressure sensors, and the multiple gaskets are respectively located between multiple springs and multiple pressure sensors.

[0010] As a further technical solution of this utility model, the slip rings are evenly spaced inside the outer shell, and the slip rings are airtight with the inner wall of the outer shell and the outer tube.

[0011] As a further technical solution of this utility model, the slip ring is made of hard plastic, and the outer shell and outer tube are made of stainless steel.

[0012] Compared with the prior art, the significant advantages of this utility model are:

[0013] 1. This design is a novel generator constant cooling water hydrogen leakage detection device. The inner tube is used to transport constant cooling water in the constant cooling water cooling system. Since a waterproof and breathable membrane is set between the inner and outer tubes, the constant cooling water will not leak in a short time if the inner and outer tubes are damaged. Therefore, the constant cooling water will not enter the outer casing. However, when the tube is damaged, hydrogen gas will be released and then pass through the waterproof and breathable membrane into the outer casing.

[0014] 2. This design presents a novel generator constant cooling water hydrogen leakage detection device. As a transport pipe in the constant cooling water system, the actual length of the entire water pipe is relatively long, and the internal space of the outer shell is also relatively large. Multiple slip rings divide the space inside the outer shell into multiple spaces of equal volume and smaller volume. Therefore, when there is a hydrogen leak, the hydrogen will leak into one of the small spaces inside the outer shell. Due to the small volume of the space, even if the amount of hydrogen leakage is small, it will cause the slip ring to move significantly.

[0015] 3. This design is a novel generator constant cooling water hydrogen leakage detection device. When the slip ring is displaced, the spring will be compressed, thereby causing the pressure sensor to detect the pressure. This indicates that hydrogen has leaked into the housing. Among the multiple pressure sensors, the change in the value of individual pressure sensors can also provide feedback on the specific location of the hydrogen leak. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0018] Figure 3 This is a cross-sectional view of the internal structure of this utility model;

[0019] Figure 4 This is a cross-sectional view of the water supply pipe in this utility model;

[0020] Figure 5 This utility model is Figure 3 The diagram shows an enlarged view of part A.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Water supply pipe; 11. Inner pipe; 12. Outer pipe; 13. Waterproof and breathable membrane; 2. Outer shell; 3. Detection components; 31. Slip ring; 32. Pressure sensor; 33. Gasket; 34. Spring. Detailed Implementation

[0023] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0024] This utility model provides a novel hydrogen leakage detection device for generator constant cooling water by means of improvements. The technical solution of this utility model is as follows:

[0025] like Figures 1-4 As shown, a novel generator cooling water hydrogen leakage detection device includes a water supply pipe 1, with a housing 2 fixedly connected to the water supply pipe 1. A detection component 3 is disposed inside the housing 2, comprising multiple slip rings 31, multiple pressure sensors 32, and multiple springs 34. The slip rings 31 are slidably connected to the inner wall of the housing 2 and are all sleeved on the water supply pipe 1. The pressure sensors 32 are respectively fixedly connected to the inner wall of the housing 2 and the slip rings 31. One end of each spring 34 is connected to the pressure sensor 32, and the other end is fixedly connected to the slip rings 31 and the inner wall of the housing 2. When a leak occurs in the water supply pipe 1, hydrogen gas precipitated in the cooling water can enter the housing 2, thereby causing the slip rings 31 to move. The movement of the slip rings 31 compresses or stretches the springs 34, which are then detected by the corresponding pressure sensors 32, thus indicating a hydrogen leakage.

[0026] like Figure 4 As shown, the water supply pipe 1 includes an inner pipe 11 and an outer pipe 12. The inner pipe 11 and the outer pipe 12 form a double-layer structure of the water supply pipe 1. The surface of the outer pipe 12 is smooth, and the outer pipe 12 is slidably connected to multiple slip rings 31.

[0027] like Figure 4 As shown, the water supply pipe 1 also includes a waterproof and breathable membrane 13, which is fixedly connected between the inner pipe 11 and the outer pipe 12.

[0028] like Figure 4 As shown, the waterproof and breathable membrane 13 is made of ePTEF material, which prevents water from passing through its surface, but allows hydrogen to pass through. The double-layer structure of inner tube 11 and outer tube 12 is designed to make the surface of outer tube 12 smooth. Inner tube 11 is used to transport constant cooling water, while outer tube 12 is guaranteed to be slidably connected to slip ring 31 and to ensure airtightness between outer tube 12 and slip ring 31.

[0029] like Figure 2 , Figure 3 and Figure 4 As shown, the detection component 3 also includes a pad 33, which is fixedly connected to multiple pressure sensors 32. The multiple pads 33 are respectively located between multiple springs 34 and multiple pressure sensors 32. The purpose of setting the pads 33 is that when the springs 34 are stretched or compressed, the elastic force can be evenly applied to the pressure sensors 32 through the pads 33.

[0030] like Figure 2 and Figure 3 As shown, the slip rings 31 are evenly spaced inside the outer shell 2. The slip rings 31 are airtight with the inner wall of the outer shell 2 and the outer tube 12. The multiple slip rings 31 divide the space inside the outer shell 2 into multiple spaces with the same volume and smaller volume. Therefore, when there is a hydrogen leak, the hydrogen will leak into one of the small spaces inside the outer shell 2. Since the volume of the space is small, even if the amount of hydrogen leak is small, it will cause the slip ring 31 to move significantly. When the slip ring 31 moves, the spring 34 will be compressed, so that the pressure sensor 32 will detect the pressure. This indicates that hydrogen has leaked into the outer shell 2. Among the multiple pressure sensors 32, the change in the value of individual pressure sensors 32 can also give feedback on the specific location of the hydrogen leak.

[0031] like Figure 2 and Figure 4 As shown, the slip ring 31 is made of hard plastic, while the outer shell 2 and the outer tube 12 are made of stainless steel.

[0032] The specific working method is as follows: the inner tube 11 is used to transport the constant cooling water in the constant cooling water cooling system. Since a waterproof and breathable membrane 13 is set between the inner tube 11 and the outer tube 12, the constant cooling water will not leak in a short time once the inner tube 11 and the outer tube 12 are damaged. Therefore, the constant cooling water will not enter the outer shell 2. When it is damaged, hydrogen gas will be released and then pass through the waterproof and breathable membrane 13 and enter the outer shell 2.

[0033] As a transport pipeline in a constant cooling water system, the actual length of the entire water pipe 1 is relatively long, and the internal space of the outer shell 2 is also relatively large. Multiple slip rings 31 divide the space inside the outer shell 2 into multiple spaces of equal and smaller volume. Therefore, when there is a hydrogen leak, the hydrogen will leak into one of the smaller spaces inside the outer shell 2. Due to the small volume of the space, even if the amount of hydrogen leak is small, it will cause the slip ring 31 to move significantly. When the slip ring 31 moves, the spring 34 will be compressed, thereby causing the pressure sensor 32 to detect the pressure. This indicates that hydrogen has leaked into the outer shell 2. Among the multiple pressure sensors 32, the change in the value of individual pressure sensors 32 can also provide feedback on the specific location of the hydrogen leak.

[0034] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A novel generator constant cooling water hydrogen leakage detection device, comprising a water supply pipe (1), characterized in that: A housing (2) is fixedly connected to the water supply pipe (1). A detection component (3) is provided inside the housing (2). The detection component (3) includes multiple slip rings (31), multiple pressure sensors (32), and multiple springs (34). The multiple slip rings (31) are slidably connected to the inner wall of the housing (2), and the multiple slip rings (31) are all sleeved on the water supply pipe (1). The multiple pressure sensors (32) are fixedly connected to the inner wall of the housing (2) and the multiple slip rings (31), respectively. One end of the multiple springs (34) is connected to the multiple pressure sensors (32), and the other end of the multiple springs (34) is fixedly connected to the multiple slip rings (31) and the inner wall of the housing (2), respectively.

2. The novel generator constant cooling water hydrogen leakage detection device according to claim 1, characterized in that: The water supply pipe (1) includes an inner pipe (11) and an outer pipe (12). The inner pipe (11) and the outer pipe (12) form a double-layer structure of the water supply pipe (1). The surface of the outer pipe (12) is smooth, and the outer pipe (12) is slidably connected to multiple slip rings (31).

3. The novel generator constant cooling water hydrogen leakage detection device according to claim 2, characterized in that: The water supply pipe (1) also includes a waterproof and breathable membrane (13), which is fixedly connected between the inner pipe (11) and the outer pipe (12).

4. The novel generator constant cooling water hydrogen leakage detection device according to claim 3, characterized in that: The waterproof and breathable membrane (13) is made of ePTEF material, which prevents water from passing through its surface, but allows hydrogen to pass through.

5. The novel generator constant cooling water hydrogen leakage detection device according to claim 1, characterized in that: The detection component (3) also includes a gasket (33), which is fixedly connected to a plurality of pressure sensors (32). The plurality of gaskets (33) are respectively located between a plurality of springs (34) and a plurality of pressure sensors (32).

6. The novel generator constant cooling water hydrogen leakage detection device according to claim 1, characterized in that: The slip rings (31) are evenly spaced inside the outer shell (2), and the slip rings (31) are airtight with the inner wall of the outer shell (2) and the outer tube (12).

7. A novel generator constant cooling water hydrogen leakage detection device according to claim 6, characterized in that: The slip ring (31) is made of hard plastic, while the outer shell (2) and outer tube (12) are made of stainless steel.