CN210322216U - Special tool for checking leakage of cooling water pipe of hydrogen cooler of generator - Google Patents
Special tool for checking leakage of cooling water pipe of hydrogen cooler of generator Download PDFInfo
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- CN210322216U CN210322216U CN201921023398.5U CN201921023398U CN210322216U CN 210322216 U CN210322216 U CN 210322216U CN 201921023398 U CN201921023398 U CN 201921023398U CN 210322216 U CN210322216 U CN 210322216U
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Abstract
The utility model discloses a special tool for checking leakage of cooling water pipe of generator hydrogen cooler. It includes: the water injection pressure measuring mechanism is internally provided with a water injection pipe, the water injection pipe is provided with a water pressure gauge, and a boss is arranged at the position, close to the end part, of the water outlet end of the water injection pipe; the water inlet side pressing mechanism comprises a water inlet side pressing plate which can be connected to the hydrogen cooler body in a screw nut mode; and the water outlet side pressing mechanism comprises a water outlet side pressing plate and a plug, the water outlet side pressing plate can be connected to the hydrogen cooler body in a screw nut mode, and the plug can be embedded into the outlet end of the cooling water pipe. The utility model relates to an exquisiteness, simple structure, processing are easy, and the practicality is strong, and the accurate efficient, the use of looking for leaks is simple and convenient.
Description
Technical Field
The utility model belongs to the technical field of the leak hunting of generator hydrogen cooler condenser tube, concretely relates to generator hydrogen cooler condenser tube specialized tool that leaks hunting.
Background
The hydrogen cooler is the important component part of hydrogen water-cooled generator, along with the natural ageing of equipment, and factor influences such as the corrosion of unit long-time operation and cooling water to the copper pipe, rivers erode, unit vibration, and condenser tube must take place to leak. The leakage of the cooling water pipe of the hydrogen cooler is one of the main reasons for the internal leakage of the hydrogen of the generator, and directly threatens the running safety of the generator and the generator set. The conventional leakage detection method is to extract the hydrogen cooler from the generator body and then perform pressure test confirmation on the whole water of the hydrogen cooler.
Because the cooling water pipes in the hydrogen cooler are dense and various, in order to improve the cooling effect, cooling fins are arranged in the cooling water pipes, and spring winding type and fin type cooling pipes are adopted, the positions of the cooling water pipes are difficult to determine when leakage occurs, and particularly which cooling water pipe leaks is difficult to judge, so that pressure testing and troubleshooting can be repeated, the construction period is long, the workload is large, meanwhile, some cooling water pipes which do not leak can be blocked by mistake, and the cooling effect of the hydrogen cooler is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a generator hydrogen cooler condenser cooling water pipe specialized tool that leaks hunting to effectively solve prior art's weak point.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a generator hydrogen cooler condenser cooling water pipe specialized tool that leaks hunting, includes:
the water injection pressure measuring mechanism is internally provided with a water injection pipe, the water inlet end of the water injection pipe can be connected with a hydraulic press, the water outlet end of the water injection pipe can be embedded into the inlet end of the cooling water pipe, the water injection pipe is provided with a water pressure gauge, the water injection pipe between the hydraulic press and the water pressure gauge is provided with a stop valve, and the position, close to the end part, of the water outlet end of the water injection pipe is provided with a boss surrounding the water injection pipe;
the water inlet side pressing mechanism comprises a water inlet side pressing plate, the water inlet side pressing plate acts on the boss and can be connected to the hydrogen cooler body in a screw and nut mode; and
the water outlet side pressing mechanism comprises a water outlet side pressing plate and a plug, the water outlet side pressing plate acts on the plug and can be connected to the hydrogen cooler body in a screw nut mode, the plug comprises an embedding part and a boss part, and the embedding part can be embedded into the outlet end of the cooling water pipe.
Compared with the prior art, the utility model discloses generator hydrogen cooler condenser tube leak hunting specialized tool, the design is exquisite, simple structure, processing are easy, and the preparation material is ordinary, the materials are few, the practicality is strong, leak hunting accurate efficient, use simple and convenient, can carry out the pressure testing to every condenser tube of hydrogen cooler and leak hunting, and adaptability is wide, can be used to the leak hunting of the cooler of the same type. The special tool is used for leak detection without being limited by some conditions, is simple to operate, can be used for detecting leakage clearly, reduces the workload of maintenance personnel, facilitates the use of a user, avoids the phenomena of repeated dismounting and searching and reworking, also plays a role in protecting the hydrogen cooler, fills the defects of the existing leak detection technology, and avoids the problems that the leakage point cannot be detected to threaten the safe operation of a generator set or the cooling effect of the hydrogen cooler is influenced by mistakenly blocking a cooling water pipe.
Furthermore, a first groove is formed in one end face, corresponding to the cooling water pipe, of the boss, and a first rubber sealing ring is arranged in the first groove.
The first groove and the first rubber sealing ring are arranged, so that the water inlet side pressing plate has a better extruding effect on the boss, and the sealing performance is enhanced.
Furthermore, a second groove is formed in one end face, corresponding to the cooling water pipe, of the boss portion, and a second rubber sealing ring is arranged in the second groove.
The second groove and the second rubber sealing ring are arranged, so that the extrusion effect of the water outlet side pressing plate on the plug is better, and the sealing performance is enhanced.
Furthermore, rectangular slotted holes for penetrating the screws are formed in the two sides of the water inlet side pressure plate and the water outlet side pressure plate.
The rectangular slotted holes are formed, so that the pressing plates can be adjusted adaptively, and when cooling water pipes at different positions are searched, the water inlet side pressing plate and the water outlet side pressing plate are fastened on the hydrogen cooler body by using screws and nuts.
Further, the outer contour of the cross section of the boss perpendicular to the central axis of the water injection pipe is an ellipse.
Furthermore, the middle part of the water inlet side pressure plate is also provided with a through hole for penetrating through the water injection pipe.
Furthermore, the cross section of the through hole is also in an oval shape and is in interference fit with the outer contour of the boss.
The through hole is used for passing through the boss, and meanwhile, the extrusion effect of the water inlet side pressing plate on the boss is not influenced. The outer contour of the boss and the cross section of the through hole are both oval, and the bosses are in interference fit, so that the bosses can penetrate through the water inlet side pressing plate, the water inlet side pressing plate or the bosses rotate by 90 degrees after the bosses penetrate through the bosses, and the bosses cannot penetrate out of the water inlet side pressing plate, and further the compaction effect of the water inlet side pressing plate on the bosses can be realized.
In order that the invention may be more clearly understood, specific embodiments thereof will be described below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of the usage state of the present invention;
FIG. 2 is a schematic structural view of the water injection pressure measuring mechanism of the present invention;
FIG. 3 is a schematic structural view of the plug of the present invention;
FIG. 4 is a schematic structural view of the side water inlet pressure plate of the present invention;
fig. 5 is a schematic structural view of the middle water outlet side pressure plate of the present invention.
Wherein the reference numerals are:
1. a water injection pressure measuring mechanism; 2. a water inlet side pressing mechanism; 3. a water outlet side pressing mechanism; 4. a cooling water pipe; 5. a hydrogen cooler body; 6. a groove; 7. a rubber seal ring; 8. a rectangular slot; 9. a through hole;
11. a water injection pipe; 12. a hydraulic press; 13. a water pressure gauge; 14. a stop valve; 15. a boss; 16. a first groove; 17. a first rubber seal ring; 21. a water inlet side pressing plate; 22. a screw; 23. a nut; 31. a water outlet side pressing plate; 32. a plug; 33. an insertion section; 34. a boss portion; 35. a second groove; 36. and a second rubber sealing ring.
Detailed Description
For solving not enough and the defect that prior art exists, the utility model provides a generator hydrogen cooler condenser tube leak hunting specialized tool has solved the whole method that leads to water of hydrogen cooler and carry out the pressure testing and can't confirm the problem that hydrogen cooler mid portion condenser tube leaked.
As shown in fig. 1 to fig. 5, fig. 1 is the utility model discloses a user state schematic diagram, fig. 2 is the utility model discloses annotate the water pressure measuring mechanism's in the structural schematic diagram, fig. 3 is the utility model discloses the structural schematic diagram of well end cap, fig. 4 is the utility model discloses well structure schematic diagram of intaking side guide, fig. 5 is the utility model discloses well structure schematic diagram of water side guide.
As shown in figure 1, the utility model discloses leak hunting specialized tool, including water injection pressure measurement mechanism 1, the side hold-down mechanism 2 of intaking and the side hold-down mechanism 3 of play water.
Wherein, the water injection pressure measuring mechanism 1 is internally provided with a water injection pipe 11, as shown in fig. 2, the water inlet end of the water injection pipe 11 is connected with a hydraulic press 12 through a cable head, the water outlet end of the water injection pipe 11 can be embedded into the inlet end of the cooling water pipe 4, the water injection pipe 11 is provided with a water pressure gauge 13, the water injection pipe 11 between the hydraulic press 12 and the water pressure gauge 13 is provided with a stop valve 14, the position of the water outlet end of the water injection pipe 11 close to the end part is provided with a boss 15 surrounding the water injection pipe 11, and the external outline of the cross section of the boss 15 perpendicular to the central axis of the water injection pipe 11 is oval. A first groove 16 is formed in one end face of the boss 15 corresponding to the cooling water pipe 4, the first groove 16 is a circular groove, and a first rubber sealing ring 17 with certain elasticity is arranged in the first groove 16. The end of the water injection pipe 11 is embedded into the inlet end of the cooling water pipe 4 until the boss 15 is abutted against the hydrogen cooler body 5, and the first rubber sealing ring 17 can enhance the sealing property.
The water inlet side pressing mechanism 2 comprises a water inlet side pressing plate 21, the water inlet side pressing plate 21 is connected to the hydrogen cooler body 5 in a mode that a screw rod 22 and a nut 23 are connected, rectangular slotted holes 8 used for penetrating the screw rod 22 are formed in two sides of the water inlet side pressing plate 21, as shown in fig. 4, a through hole 9 used for penetrating through the boss 15 is further formed in the middle of the water inlet side pressing plate 21, and the cross section of the through hole 9 is also oval and in interference fit with the external contour of the boss 15. The through hole 9 is used for passing through the boss 15, and meanwhile, the extrusion effect of the water inlet side pressure plate 21 on the boss 15 is not influenced after the through hole passes through the boss. The rectangular slotted hole 8 and the through hole 9 are arranged, so that when the cooling water pipes 4 at different positions are searched, the screw rod 22 and the nut 23 are utilized to compact the boss 15 of the water inlet side pressure plate 21 and fasten the boss on the hydrogen cooler body 5.
The outlet side pressing mechanism 3 comprises an outlet side pressing plate 31 and a plug 32, the outlet side pressing plate 31 is connected to the hydrogen cooler body 5 through a screw rod 22 and a nut 23, the plug 32 comprises an embedding portion 33 and a boss portion 34, as shown in fig. 3, the embedding portion 33 is embedded in the outlet end of the cooling water pipe 4, a second groove 35 is formed in one end face of the boss portion 34 corresponding to the cooling water pipe 4, the second groove 35 is an annular groove, and a certain elastic second rubber sealing ring 36 is arranged in the second groove 35. Meanwhile, rectangular slots 8 for penetrating screws are formed in two sides of the water outlet side pressing plate 31, as shown in fig. 5. The rectangular groove hole 8 is arranged to facilitate the water outlet side pressure plate 31 to be compacted to the boss part 34 of the plug 32 by the screw 22 and the nut 23 and to be fastened on the hydrogen cooler body 5 when the cooling water pipe 4 at different positions is searched, wherein the second rubber sealing ring 36 is arranged to enhance the sealing performance.
Use the utility model discloses when examining and leaking the generator hydrogen cooler condenser tube and examining and repairing, the engine is taken out alone with every hydrogen cooler of group after stopping transporting and is hung to the maintenance place, later demolishs hydrogen cooler both ends water chamber cap earlier, examines and leaks tube sheet and condenser tube sanitization again.
Firstly, the water inlet side pressure plate 21 penetrates through the boss 15 through the through hole 9 and is sleeved on the water injection pipe 11, then the water outlet end of the water injection pipe 11 is embedded into the inlet end of the cooling water pipe 4, then the water inlet side pressure plate 21 is rotated by 90 degrees, the screw rod 22 sequentially penetrates through the rectangular slotted hole 8 and the connecting lug on the hydrogen cooler body 5, then the nut 23 is tightened until the water inlet side pressure plate 21 compacts the boss 15, and then the water injection pipe 11 is tightly embedded into the inlet end of the cooling water pipe 4.
Then, the plug 32 is inserted into the outlet end of the cooling water pipe 4, and then the screw 22 sequentially passes through the rectangular slot hole 8 and the connecting lug on the hydrogen cooler body 5, and then the nut 23 is screwed on for primary fixation. Before pressure testing, the cooling water pipe 4 is firstly filled with water and the air is exhausted, then the nut 23 is further screwed until the water outlet side pressing plate 31 compacts the plug 32, and then the plug 32 is tightly embedded into the outlet end of the cooling water pipe 4, so that no leakage is ensured, pressure stability in the leakage checking process is facilitated, and interference cannot be caused.
And finally, connecting a hydraulic press 12 and a water pressure gauge 13 on the water injection pipe 11 to form an independent pressure test system, pressurizing by water to raise the pressure to 0.5Mpa to check leakage of the cooling water pipe 4, determining that the cooling water pipe 4 has leakage when pressure of the water pressure gauge 13 is reduced and water drops leak out below the hydrogen cooler body 5, plugging two ends of the leaked cooling water pipe 4 by a red copper plug, and continuously checking leakage of other unchecked cooling water pipes 4.
When generator hydrogen cooler daily overhaul, can combine to use conventional method with the utility model discloses a leak hunting specialized tool utilizes the whole method of leading to water of traditional hydrogen cooler to carry out the pressure testing to leak hunting, and the use of deuterogamying when discovering that a certain set of hydrogen cooler leaks the utility model discloses a leak hunting specialized tool finds out specifically that which condenser tube leaks, can accomplish that the result is twice with half the effort, further improves the work efficiency of leaking hunting, shortens the maintenance time limit and reduces work load.
Compared with the prior art, the utility model discloses generator hydrogen cooler condenser tube leak hunting specialized tool, the design is exquisite, simple structure, processing are easy, and the preparation material is ordinary, the materials are few, the practicality is strong, leak hunting accurate efficient, use simple and convenient, can carry out the pressure testing to every condenser tube of hydrogen cooler and leak hunting, and adaptability is wide, can be used to the leak hunting of the cooler of the same type. Through the cooperation with the hydraulic press use, form a pressure system, look for the hourglass to the condenser tube of hydrogen cooler, this specialized tool designs exquisite leakproofness simultaneously and can improve test pressure to operating pressure's 1.25 ~ 2.25 times, makes the work of looking for the hourglass quick accurate. The special tool is used for leak detection without being limited by some conditions, is simple to operate, can be used for detecting leakage clearly, reduces the workload of maintenance personnel, facilitates the use of a user, avoids the phenomena of repeated dismounting and searching and reworking, also plays a role in protecting the hydrogen cooler, fills the defects of the existing leak detection technology, and avoids the problems that the leakage point cannot be detected to threaten the safe operation of a generator set or the cooling effect of the hydrogen cooler is influenced by mistakenly blocking a cooling water pipe.
The above-mentioned embodiments only represent one embodiment of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (7)
1. The utility model provides a generator hydrogen cooler condenser tube leak hunting specialized tool which characterized in that includes:
the water injection pressure measuring mechanism is internally provided with a water injection pipe, the water inlet end of the water injection pipe can be connected with a hydraulic press, the water outlet end of the water injection pipe can be embedded into the inlet end of the cooling water pipe, the water injection pipe is provided with a water pressure gauge, the water injection pipe between the hydraulic press and the water pressure gauge is provided with a stop valve, and the position, close to the end part, of the water outlet end of the water injection pipe is provided with a boss surrounding the water injection pipe;
the water inlet side pressing mechanism comprises a water inlet side pressing plate, the water inlet side pressing plate acts on the boss and can be connected to the hydrogen cooler body in a screw and nut mode; and
the water outlet side pressing mechanism comprises a water outlet side pressing plate and a plug, the water outlet side pressing plate acts on the plug and can be connected to the hydrogen cooler body in a screw nut mode, the plug comprises an embedding part and a boss part, and the embedding part can be embedded into the outlet end of the cooling water pipe.
2. The special tool for detecting leakage of the cooling water pipe of the hydrogen cooler for the power generator as claimed in claim 1, wherein a first groove is formed in one end face of the boss corresponding to the cooling water pipe, and a first rubber sealing ring is arranged in the first groove.
3. The special tool for detecting the leakage of the cooling water pipe of the hydrogen cooler for the power generator as claimed in claim 1, wherein a second groove is formed in one end surface of the boss portion corresponding to the cooling water pipe, and a second rubber sealing ring is arranged in the second groove.
4. The special tool for checking the leakage of the cooling water pipe of the hydrogen cooler of the generator as claimed in claim 1, wherein the two sides of the water inlet side pressure plate and the water outlet side pressure plate are both provided with rectangular slots for the threaded rods to pass through.
5. The special tool for checking the leakage of the cooling water pipe of the hydrogen cooler of the generator as claimed in claim 1, wherein the external contour of the cross section of the boss perpendicular to the central axis of the water injection pipe is an ellipse.
6. The special tool for checking the leakage of the cooling water pipe of the hydrogen cooler of the generator as claimed in claim 5, wherein the middle part of the water inlet side pressure plate is further provided with a through hole for penetrating through the boss.
7. The special tool for checking the leakage of the cooling water pipe of the hydrogen cooler of the generator as claimed in claim 6, wherein the cross-sectional shape of the through hole is also an ellipse and is in interference fit with the external contour of the boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921023398.5U CN210322216U (en) | 2019-07-02 | 2019-07-02 | Special tool for checking leakage of cooling water pipe of hydrogen cooler of generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921023398.5U CN210322216U (en) | 2019-07-02 | 2019-07-02 | Special tool for checking leakage of cooling water pipe of hydrogen cooler of generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210322216U true CN210322216U (en) | 2020-04-14 |
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ID=70148134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921023398.5U Active CN210322216U (en) | 2019-07-02 | 2019-07-02 | Special tool for checking leakage of cooling water pipe of hydrogen cooler of generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210322216U (en) |
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2019
- 2019-07-02 CN CN201921023398.5U patent/CN210322216U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 512100 Wushi Town, Qujiang District, Shaoguan City, Guangdong Province Patentee after: Guangdong Shaoguan Yuejiang Electricity Generation Co.,Ltd. Address before: 512100 Wushi Town, Qujiang District, Shaoguan City, Guangdong Province Patentee before: GUANGDONG SHAOGUAN YUEJIANG POWER GENERATION CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |