CN218937682U - Leakage detection device for flue gas cooler module - Google Patents
Leakage detection device for flue gas cooler module Download PDFInfo
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- CN218937682U CN218937682U CN202221354794.8U CN202221354794U CN218937682U CN 218937682 U CN218937682 U CN 218937682U CN 202221354794 U CN202221354794 U CN 202221354794U CN 218937682 U CN218937682 U CN 218937682U
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- flue gas
- pipe
- gas cooler
- air entraining
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Abstract
A leak detection device for a flue gas cooler module. The water filling leak detection method can only be used for larger leak points, the small leak points need longer observation time, and water possibly boils, so that the leak points cannot be accurately judged. The composition of the utility model comprises: the device comprises an air entrainer (4) for blocking an inlet of a cooling tube bundle (2) of the flue gas cooler (1) and a blocking device (3) for blocking an outlet of the cooling tube bundle of the flue gas cooler; the air entraining device comprises an air entraining frame (6) for introducing compressed air and a retainer (5) for multi-head discharging of the compressed air; the air entraining frame is in sliding fit with the retainer, and a right-angle air outlet pipe (11) of the air entraining frame is connected with an air inlet head (20) of the retainer through a connecting hose (23). The utility model is used for leak detection of the flue gas cooler module.
Description
Technical field:
the utility model relates to a leak detection device for a flue gas cooler module.
The background technology is as follows:
the leakage of the tube bundles of the flue gas cooler of the large thermal power generating unit is easy, a water filling leakage detection method is generally adopted when the tube bundles leak detection, and the water level of which tube bundle drops indicates that the tube bundles leak, and the tube bundles are required to be sealed by adding plugs.
The common leak detection method has the defects that:
1. the flue gas cooler is located the export wind channel of draught fan, and the entry temperature is about 150 ℃, and the water of filling the tube bank is boiling easily when leak hunting work lasts for a long time, influences leak hunting personnel's safety.
2. The water filling leak detection method can only be used for larger leak points, the small leak points need longer observation time, and water possibly boils, so that the leak points cannot be accurately judged.
The utility model comprises the following steps:
the utility model aims to solve the problems and provide a leakage detection device for a flue gas cooler module.
The above object is achieved by the following technical scheme:
the leakage detection device for the flue gas cooler module comprises an air entrainer for blocking an inlet of a cooling tube bundle of the flue gas cooler and a blocking device for blocking an outlet of the cooling tube bundle of the flue gas cooler;
the air entraining device comprises an air entraining frame for introducing compressed air and a retainer for discharging compressed air from multiple heads;
the air entraining frame is in sliding fit with the retainer, and a right-angle air outlet pipe of the air entraining frame is connected with an air inlet head of the retainer through a connecting hose.
The air-entraining frame comprises a bottom pipe, an air-entraining pipe, a supporting rod and a pressure gauge, wherein the air-entraining pipe is fixed on the bottom pipe, one end of the air-entraining pipe is connected with the right-angle air-entraining pipe, and the other end of the air-entraining pipe is connected with the right-angle air outlet pipe;
the pressure gauge is connected to the right-angle air outlet pipe through threads;
the supporting rod is welded on the bottom tube.
The utility model provides a be used for flue gas cooler module device of leaking hunting, the holder include outer tube and cavity pipe, outer tube bottom be fixed with the side link board, the side link board pass through the bolt fastening on the cavity pipe, the cavity pipe on have a plurality of heads of giving vent to anger, one side of cavity pipe have the head of admitting air.
The right-angle guide tube is communicated with the air inlet hose.
The leakage detection device for the flue gas cooler module is characterized in that the two side connecting plates are connected through a support.
The leakage detection device for the flue gas cooler module is characterized in that a manual ball valve is arranged on the gas guide pipe.
The beneficial effects are that:
1. the utility model is matched with an air compressor to use, comprises two devices, wherein the guide device is used for inputting compressed air into the inlet side tube bundles, comprises a pressure gauge, a manual ball valve and a conveying pipeline, the plugging device is used for plugging the outlet side tube bundles, n tube bundles can be searched at one time, and each tube bundle is independently used for leakage detection after screening.
2. The utility model does not need to pour water to check leakage, avoids the danger caused by boiling of water in the leakage checking process, and is more reliable.
3. The utility model can check n leakage points at one time, can screen the region where the leakage points of the tube bundle exist in a large area, and can check leakage of each tube bundle independently, thereby ensuring the leakage checking efficiency and the practicability of the tool.
Description of the drawings:
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic illustration of the structure of the bleed air device;
FIG. 3 is a schematic structural view of the occluder;
FIG. 4 is a section view taken along section A-A of FIG. 2;
in the figure: 1. a flue gas cooler; 2. a cooling tube bundle; 3. a stopper; 4. an air entraining device; 5. a protective frame; 6. an air entraining frame; 7. a bottom tube; 8. a right-angle guide tube; 9. an air-introducing pipe; 10. a manual ball valve; 11. a right-angle air outlet pipe; 12. a pressure gauge; 13. a support rod; 14. a fastening bolt; 15. a limiting hole; 16. an outer tube; 17. a side connecting plate; 18. a support; 19. a cavity tube; 20. an air inlet head; 21. an air outlet head; 22. an air intake hose; 23. and (5) an air outlet hose.
The specific embodiment is as follows:
example 1:
the leakage detection device for the flue gas cooler module comprises an air entrainer 4 for blocking an inlet of a cooling tube bundle 2 of a flue gas cooler 1 and a blocking device 3 for blocking an outlet of the cooling tube bundle of the flue gas cooler;
the air entraining device comprises an air entraining frame 6 for introducing compressed air and a retainer 5 for discharging compressed air from a plurality of heads;
the air entraining frame is in sliding fit with the retainer, and the right-angle air outlet pipe 11 of the air entraining frame is connected with the air inlet head 20 of the retainer through a connecting hose 23.
Example 2:
the leakage detection device for the flue gas cooler module according to the embodiment 1 comprises a bottom pipe 7, a gas-guiding pipe 9, a supporting rod 13 and a pressure gauge 12, wherein the gas-guiding pipe is fixed on the bottom pipe, one end of the gas-guiding pipe is connected with a right-angle gas-guiding pipe 8, and the other end of the gas-guiding pipe is connected with a right-angle gas outlet pipe 11;
the pressure gauge is connected to the right-angle air outlet pipe through threads;
the supporting rod is welded on the bottom tube.
Example 3:
the leakage detection device for a flue gas cooler module according to embodiment 1 or 2, wherein the retainer comprises an outer tube 16 and a cavity tube 19, a side connecting plate 17 is fixed at the bottom of the outer tube, the side connecting plate is fixed on the cavity tube by a bolt, a plurality of air outlet heads 21 are arranged on the cavity tube, and an air inlet head 20 is arranged on one side of the cavity tube.
The top of the outer tube of the retainer is provided with a plurality of uniformly arranged limiting holes 15, the length of the device can be limited through the limiting holes, round holes on the supporting rods are opposite to the limiting holes at different positions on the outer tube, and the whole height of the device is adjusted by fastening through fastening bolts 14.
The structure of the plugging device is similar to that of the retainer, the plugging device comprises a cavity tube and an outer tube, two sides of the outer tube are welded with side connecting plates, the two side connecting plates are connected through a support, deformation of the device is prevented, and a plurality of air inlet heads are arranged at the bottom of the cavity tube.
Example 4:
a leak detection apparatus for a flue gas cooler module according to embodiment 1, 2 or 3, wherein the right-angle guide tube is in communication with the air intake hose 22.
Example 5:
according to one embodiment 1 or 2 or 3 or 4, a leak detection device for a flue gas cooler module is provided, wherein two side connecting plates are connected through a support 18.
Example 6:
the leakage detection device for the flue gas cooler module according to the embodiment 1 or 2 or 3 or 4 or 5 is characterized in that the manual ball valve 10 is arranged on the gas introducing pipe.
Working principle: when the plugging device is used, leakage detection is carried out on each six cooling pipes of the cooling pipe bundle, a raw material belt is wound on each air outlet head of the plugging device, and then each air outlet head is inserted into an outlet of the cooling pipe bundle to plug the outlet, so that the air after air inlet is kept in the cooling pipes;
each air outlet head of the air entraining frame is wound with a raw material belt, each air outlet head is inserted into an inlet of a cooling tube bundle, an air inlet hose of the air entraining frame is connected with an air compressor to supply compressed air, a manual ball valve is opened, the compressed air enters the air entraining tubes through the air inlet hose and enters the cavity tubes through the right-angle air outlet pipe and the connecting hose, the discharged air is discharged through each air outlet head respectively, the cooling tubes are filled with discharged air, after the filled air reaches a set pressure, the air charging is stopped, the manual ball valve is closed, whether the pressure index of the pressure gauge changes at the moment is observed, if the pressure gradually becomes smaller, the leakage points are indicated in the six cooling tubes, if the pressure value does not change, the leakage points are continuously detected for the next cooling tubes, and a group of cooling tube bundles with the leakage points are singly detected after screening.
Claims (3)
1. A leak hunting device for flue gas cooler module, characterized by: the device comprises an air entrainer for blocking an inlet of a cooling tube bundle of the flue gas cooler and a blocking device for blocking an outlet of the cooling tube bundle of the flue gas cooler;
the air entraining device comprises an air entraining frame for introducing compressed air and a retainer for discharging compressed air from multiple heads;
the air entraining frame is in sliding fit with the retainer, and a right-angle air outlet pipe of the air entraining frame is connected with an air inlet head of the retainer through a connecting hose.
2. A leak detection apparatus for a flue gas cooler module as defined in claim 1, wherein: the air entraining frame comprises a bottom pipe, an air entraining pipe, a supporting rod and a pressure gauge, wherein the air entraining pipe is fixed on the bottom pipe, one end of the air entraining pipe is connected with the right-angle air entraining pipe, and the other end of the air entraining pipe is connected with the right-angle air outlet pipe; the pressure gauge is connected to the right-angle air outlet pipe through threads;
the supporting rod is welded on the bottom pipe; the retainer comprises an outer tube and a cavity tube, wherein a side connecting plate is fixed at the bottom of the outer tube and fixed on the cavity tube through bolts, a plurality of air outlet heads are arranged on the cavity tube, and an air inlet head is arranged on one side of the cavity tube.
3. A leak detection apparatus for a flue gas cooler module as defined in claim 2, wherein: the right-angle guide tube is communicated with the air inlet hose; the two side connecting plates are connected through a support; the manual ball valve is arranged on the air guide pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221354794.8U CN218937682U (en) | 2022-06-01 | 2022-06-01 | Leakage detection device for flue gas cooler module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221354794.8U CN218937682U (en) | 2022-06-01 | 2022-06-01 | Leakage detection device for flue gas cooler module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218937682U true CN218937682U (en) | 2023-04-28 |
Family
ID=86067801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221354794.8U Active CN218937682U (en) | 2022-06-01 | 2022-06-01 | Leakage detection device for flue gas cooler module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218937682U (en) |
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2022
- 2022-06-01 CN CN202221354794.8U patent/CN218937682U/en active Active
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