CN210626438U - Sensor protection device of hydrogen leakage detector - Google Patents
Sensor protection device of hydrogen leakage detector Download PDFInfo
- Publication number
- CN210626438U CN210626438U CN201921460014.6U CN201921460014U CN210626438U CN 210626438 U CN210626438 U CN 210626438U CN 201921460014 U CN201921460014 U CN 201921460014U CN 210626438 U CN210626438 U CN 210626438U
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- water
- short section
- blocking
- buoyancy piece
- protection device
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Abstract
A sensor protection device of a hydrogen leakage detector comprises a communication short section and a water-blocking buoyancy piece arranged in the communication short section, wherein the communication short section comprises an upper short section and a lower short section, the bottom end of the upper short section is fixedly connected with the top end of the lower short section, the top end of the upper short section is used for connecting a sensor of the hydrogen leakage detector, and the bottom end of the lower short section is used for connecting an exhaust pipe at the top of an inner cooling water tank; a cavity is formed in the inner side wall of the lower short section, the water-blocking buoyancy piece is contained in the cavity, and a gap is formed between the inner side wall of the lower short section and the water-blocking buoyancy piece; the water-blocking buoyancy piece comprises a water-blocking plug, a sampling port is formed in the upper short section, and the water-blocking buoyancy piece can float upwards under the buoyancy action of water, so that the water-blocking plug of the water-blocking buoyancy piece is communicated with the sampling port of the short section. The utility model discloses a leak hydrogen detector sensor protection device simple structure neither influences the testing result, and water is to the damage of sensor when can avoiding again interior cold water storage cistern water level to rise.
Description
Technical Field
The utility model relates to a leak hydrogen detector sensor protection device.
Background
The monitoring point of the inner cold water tank is arranged at the exhaust pipe at the top of the inner cold water tank, and the hydrogen leakage detector (comprising a sensor and a special sampling system) is connected with the exhaust port of the inner cold water tank. The core component of the hydrogen leakage detector is a gas sensor which converts the detected hydrogen concentration into an electric signal, and when the gas concentration reaches or exceeds an alarm point set by the gas detection alarm controller, the gas detection alarm controller sends an alarm signal. If the water replenishing level of the inner cooling water tank is too high, water enters the combustible gas sensor, and the sensor is damaged and loses efficacy.
Disclosure of Invention
The utility model aims at providing a leak hydrogen detector sensor protection device for solving above-mentioned problem.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a sensor protection device of a hydrogen leakage detector comprises a communication short section and a water-blocking buoyancy piece arranged in the communication short section, wherein the communication short section comprises an upper short section and a lower short section, the bottom end of the upper short section is fixedly connected with the top end of the lower short section, the top end of the upper short section is used for connecting a sensor of the hydrogen leakage detector, and the bottom end of the lower short section is used for connecting an exhaust pipe at the top of an inner cooling water tank; a cavity is formed in the inner side wall of the lower short section, the water-blocking buoyancy piece is contained in the cavity, and a gap is formed between the inner side wall of the lower short section and the water-blocking buoyancy piece; the water-blocking buoyancy piece comprises a water-blocking plug, a sampling port is formed in the upper short section, and the water-blocking buoyancy piece can float upwards under the buoyancy action of water, so that the water-blocking plug of the water-blocking buoyancy piece is communicated with the sampling port of the short section.
The utility model discloses a leak hydrogen detector sensor protection device simple structure neither influences the testing result, and water is to the damage of sensor when can avoiding again interior cold water storage cistern water level to rise.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a schematic structural view of a hydrogen leakage detector sensor protection device according to a preferred embodiment of the present invention;
FIG. 2 is a schematic bottom view of the water-blocking buoyancy of FIG. 1;
in the figure: 1. a short joint is communicated; 2. a water-blocking buoyancy member; 3. an upper short section; 4. a lower short section; 5. a body portion; 6. a flange; 7. a sampling port; 8. a body portion; 9. a limiting part; 10. an air inlet; 11. a body; 12. water blockage; 13. a connecting portion; 14. a seal ring; 15. air holes are formed; 16. an inner bore; 17. and (4) air holes.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic drawings and illustrate, by way of illustration only, the basic structure of the invention, and which therefore show only the constituents relevant to the invention.
As shown in fig. 1, the utility model relates to a hydrogen leakage detector sensor protection device of preferred embodiment, including intercommunication nipple joint 1 and arrange the buoyancy 2 that blocks water of intercommunication nipple joint 1 inside in. The material of the communication nipple 1 is 304 stainless steel. The water-blocking buoyancy piece 2 is made of polytetrafluoroethylene plastics.
The water-blocking buoyancy piece 2 comprises a cylindrical body 11, a truncated cone-shaped water-blocking plug 12, a connecting part 13 for connecting the body 11 and the water-blocking plug 12, and a sealing ring 14 sleeved on the water-blocking plug 12.
The water stopper 12 is connected to the top end of the body 11 by a connecting portion 13. The diameter of the body 11 is greater than the diameter of the water stopper 12. The diameter of the water blocking plug 12 gradually increases from the top to the bottom.
Referring to fig. 2, the water-blocking buoyancy member 2 is an internal air-permeable structure. The bottom end of the body 11 of the water-blocking buoyancy piece 2 is provided with a plurality of air holes 15 and a plurality of inner holes 16 at intervals near the outer edge. The air holes 15 and the inner holes 16 are arranged in a staggered manner. The air holes 15 penetrate through the body 11 and extend from the bottom end to the top end of the body 11, and hydrogen can enter the sensor through the air holes 15 on the water-blocking buoyancy piece 2. The inner hole 16 does not penetrate through the body 11, and hydrogen cannot enter the sensor through the inner hole 16 on the water-blocking buoyancy element 2. In addition, the plurality of air holes 15 and the plurality of inner holes 16 are formed in the body 11 of the water-blocking buoyancy piece 2, so that the weight of the water-blocking buoyancy piece 2 is reduced, and the water-blocking buoyancy piece 2 can float upwards conveniently. In this embodiment, the number of the air holes 15 and the inner holes 16 is six, and the diameters of the air holes 15 and the inner holes 16 are 2.5 mm.
The structure of the communicating short section 1 is two sections of split type internal cavity short sections and comprises an upper short section 3 and a lower short section 4. The bottom end of the upper short section 3 is fixedly connected with the top end of the lower short section 4 in a threaded manner. The top end of the upper short section 3 is used for connecting a sensor of a hydrogen leakage detector, and the bottom end of the lower short section 4 is used for connecting an exhaust pipe at the top of the inner cooling water tank. Specifically, the top end of the upper short section 3 is in bolt connection with a sensor of the hydrogen leakage detector, and the bottom end of the lower short section 4 is in bolt connection with an exhaust pipe at the top of the inner cooling water tank.
The upper pipe nipple 3 includes a tubular body 5 and an annular flange 6 extending from the inner wall of the bottom end of the body 5 toward the axial center. A sampling port 7 is formed in the center of the flange 6. The sampling port 7 formed at the bottom of the flange 6 is wedge-shaped, and the diameter of the sampling port is gradually increased, so that the water blocking plug 12 of the water blocking buoyancy piece 2 can enter and plug the sampling port 7 of the upper short section 3. An air hole 17 is formed below the side wall of the upper short section 3, so that gas accumulation is prevented, and a monitoring result is prevented from being influenced. Specifically, the diameter of the ventilation hole 17 is 5 mm.
The lower short section 4 comprises a tubular main body 8 and an annular limiting part 9 extending from the bottom inner wall of the main body 8 to the axis. The inner side wall of the body part 8 of the lower short section 4 forms a cavity, and the water-blocking buoyancy piece 2 is contained in the cavity. The internal diameter of this part 8 of lower part nipple joint 4 is greater than the diameter of the body 11 of buoyancy 2 that blocks water to form the space between the inside wall of lower part nipple joint 4 and the body 11 of buoyancy 2 that blocks water, the hydrogen of being convenient for enters into to the sensor through this space. An air inlet 10 is formed in the center of the stopper 9. Water and hydrogen from the exhaust pipe at the top of the internal cooling water tank enter the lower short joint 4 from the air inlet 10. The diameter of the air inlet 10 formed by enclosing the limiting part 9 is smaller than the diameter of the body 11 of the water-blocking buoyancy piece 2, so that the water-blocking buoyancy piece 2 is prevented from falling out from the bottom end of the lower short section 4.
The utility model discloses a leak hydrogen detector sensor protection device when using, the buoyancy that blocks water 2 blocks water stopper 12 and blocks water sealing washer 14 on the stopper 12 and block up before the sampling mouth 7 of intercommunication nipple joint 1, hydrogen has got into to the sensor through the sampling mouth 7 of intercommunication nipple joint 1. When the water level of the inner cold water tank rises, the water blocking buoyancy piece 2 floats upwards under the buoyancy effect of water, the water blocking plug 12 of the water blocking buoyancy piece 2 and the sealing ring 14 on the water blocking plug 12 block the sampling port 7 of the communication nipple 1, and water is prevented from entering the sensor.
The utility model discloses a leak hydrogen detector sensor protection device simple structure neither influences the testing result, and water is to the damage of sensor when can avoiding again interior cold water storage cistern water level to rise.
The above descriptions of the embodiments of the present invention that are not related to the present invention are well known in the art, and can be implemented by referring to the well-known technologies.
In light of the foregoing, it is to be understood that various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. The utility model provides a leak hydrogen detector sensor protection device which characterized in that: the hydrogen leakage detector comprises a communication short section and a water-blocking buoyancy piece arranged inside the communication short section, wherein the communication short section comprises an upper short section and a lower short section, the bottom end of the upper short section is fixedly connected with the top end of the lower short section, the top end of the upper short section is used for connecting a sensor of the hydrogen leakage detector, and the bottom end of the lower short section is used for connecting an exhaust pipe at the top of the inner cooling water tank; a cavity is formed in the inner side wall of the lower short section, the water-blocking buoyancy piece is contained in the cavity, and a gap is formed between the inner side wall of the lower short section and the water-blocking buoyancy piece; the water-blocking buoyancy piece comprises a water-blocking plug, a sampling port is formed in the upper short section, and the water-blocking buoyancy piece can float upwards under the buoyancy action of water, so that the water-blocking plug of the water-blocking buoyancy piece is communicated with the sampling port of the short section.
2. The leak hydrogen detector sensor protection device of claim 1, characterized in that: the water blocking buoyancy piece further comprises a body and a connecting portion for connecting the body with the water blocking plug, the water blocking plug of the water blocking buoyancy piece is in a round table shape, the body of the water blocking buoyancy piece is cylindrical, the diameter of the body is larger than that of the water blocking plug, and the diameter of the water blocking plug is gradually increased from the top end to the bottom end.
3. The leak hydrogen detector sensor protection device of claim 2, characterized in that: the above-mentioned
A plurality of air holes and a plurality of inner holes are formed at the bottom end of the body of the water-blocking buoyancy piece at intervals close to the outer edge, the air holes and the inner holes are arranged in a staggered mode, the air holes penetrate through the body, and the inner holes do not penetrate through the body.
4. The leak hydrogen detector sensor protection device of claim 1, characterized in that: the water-blocking buoyancy piece also comprises a sealing ring sleeved on the water-blocking plug.
5. The leak hydrogen detector sensor protection device of claim 1, characterized in that: the above-mentioned
The upper short section comprises a tubular body part and an annular flange formed by extending from the inner wall of the bottom end of the body part to the axis, and the center of the flange forms the sampling port.
6. The leak hydrogen detector sensor protection device of claim 5, characterized in that: the sampling port formed at the bottom of the flange is wedge-shaped, and the diameter of the sampling port is gradually increased.
7. The leak hydrogen detector sensor protection device of claim 1, characterized in that: and an air hole is formed below the side wall of the upper short section.
8. The leak hydrogen detector sensor protection device of claim 1, characterized in that: the lower short section comprises a tubular body part and an annular limiting part formed by extending from the inner wall of the bottom end of the body part to the axis, and an air inlet is formed in the center of the limiting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921460014.6U CN210626438U (en) | 2019-09-04 | 2019-09-04 | Sensor protection device of hydrogen leakage detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921460014.6U CN210626438U (en) | 2019-09-04 | 2019-09-04 | Sensor protection device of hydrogen leakage detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210626438U true CN210626438U (en) | 2020-05-26 |
Family
ID=70747798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921460014.6U Expired - Fee Related CN210626438U (en) | 2019-09-04 | 2019-09-04 | Sensor protection device of hydrogen leakage detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210626438U (en) |
-
2019
- 2019-09-04 CN CN201921460014.6U patent/CN210626438U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200526 Termination date: 20210904 |