CN219870183U - Manhole door tightness test device of generator - Google Patents
Manhole door tightness test device of generator Download PDFInfo
- Publication number
- CN219870183U CN219870183U CN202320878879.4U CN202320878879U CN219870183U CN 219870183 U CN219870183 U CN 219870183U CN 202320878879 U CN202320878879 U CN 202320878879U CN 219870183 U CN219870183 U CN 219870183U
- Authority
- CN
- China
- Prior art keywords
- manhole door
- generator
- sealing
- manhole
- cover plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 116
- 238000009434 installation Methods 0.000 claims description 26
- 238000007599 discharging Methods 0.000 claims description 15
- 230000000903 blocking effect Effects 0.000 claims description 11
- 238000012423 maintenance Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000012466 permeate Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model provides a generator manhole door leakproofness test device, the generator includes manhole door apron and manhole door mount pad, and press from both sides the first sealing washer of locating between manhole door apron and the manhole door mount pad, including shutoff subassembly and fill gassing subassembly, the shutoff subassembly is installed in the manhole door mount pad, in order to form airtight space between manhole door apron and shutoff subassembly, fill gassing subassembly setting in the generator, be connected with the shutoff subassembly, in order to fill gassing to airtight space that forms between manhole door apron and the shutoff subassembly, verify the leakproofness between manhole door apron and the manhole door mount pad. The device can check the tightness of the manhole door, verify the repairing effect of the sealing surface of the manhole door, ensure that the manhole door can completely seal the generator, shorten the maintenance period of the tightness of the manhole door, and further finish maintenance of the manhole door as soon as possible and put the manhole door into use, finish sealing the generator, and further improve the productivity.
Description
Technical Field
The utility model relates to the field of electrical maintenance, in particular to a manhole door tightness test device of a generator.
Background
The equipment such as generator widely uses circular, square manhole door or flange to carry out gas or liquid's seal, has an O shape sealing washer groove in the manhole door, then with the bolt of outer lane with the manhole door apron tightly on the plane of equipment, compresses tightly the sealing washer to play sealed effect.
In generator practical application, find some problems, for example when overhauling equipment such as generator, find that the manhole door sealing face of generator has the defect of unevenness, repair welding, the back of polishing to the sealing face, at this moment can not know in time that the sealing face polishes the effect of leveling how, also can not judge simultaneously that the sealing face after repairing can carry out reliable seal, because whole generator volume is up to more than 100 cubic meters, need carry out all maintenance to whole generator after, just can aerify the generator and verify its leakproofness. If the sealing property is found to be poor, in order to deal with this problem, it is necessary to discharge all of the gas of many cubic meters of the generator 100, which takes a lot of time and has a serious influence on the entire maintenance period.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a generator manhole door tightness test device aiming at the defects in the prior art.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a generator manhole door tightness test device, the generator includes manhole door apron and manhole door mount pad, and presss from both sides the first sealing washer of locating between manhole door apron and the manhole door mount pad, including shutoff subassembly and inflation and deflation subassembly, the shutoff subassembly is installed in the manhole door mount pad to form airtight space between manhole door apron and the shutoff subassembly;
the inflation and deflation assembly is arranged in the generator and connected with the plugging assembly, so that inflation and deflation are carried out on a closed space formed between the manhole door cover plate and the plugging assembly, and tightness between the manhole door cover plate and the manhole door installation seat is verified.
In some embodiments, the closure assembly comprises a sealing closure plate;
the sealing blocking plate is arranged on the inner wall of the manhole door mounting seat in a sealing way.
In some embodiments, the plugging assembly further comprises a support post mounted within the generator with one end in contact with the sealing plug plate to provide support for the sealing plug plate.
In some embodiments, a second sealing groove and a second sealing ring are arranged on the outer circumferential surface of the sealing plug plate, the second sealing ring is installed in the second sealing groove, and the second sealing ring is used for filling a gap between the sealing plug plate and the manhole door installation seat.
In some embodiments, the sealing closure plate is further provided with an inflation hole for connecting the inflation and deflation assembly;
the inflation hole is communicated with the inflation and deflation assembly and the airtight space.
In some embodiments, the inflation and deflation assembly includes a gas tank and an intake valve;
the gas tank is connected with the inflating hole through a pipeline so as to inflate the airtight space formed between the manhole door cover plate and the plugging assembly, and the gas inlet valve is arranged on the pipeline so as to control gas to flow to the airtight space formed between the manhole door cover plate and the plugging assembly.
In some embodiments, a pressure sensor is provided on the conduit to monitor the pressure of the gas within the conduit.
In some embodiments, the inflation and deflation assembly further comprises an electrical control structure and an exhaust valve, wherein the exhaust valve is arranged on the pipeline to exhaust gas in a closed space formed between the manhole door cover plate and the plugging assembly;
the electric control structure is electrically connected with the pressure sensor, the air inlet valve and the exhaust valve.
In some embodiments, a first sealing groove is formed in the end face, facing the manhole cover plate, of the manhole door mounting seat in a surrounding mode, and the first sealing ring is filled in the first sealing groove.
In some embodiments, the manhole cover plate is further provided with a first bolt hole, and the manhole door mount is further provided with a second bolt hole, so that a bolt passes through the first bolt hole and the second bolt hole to lock the manhole cover plate and the manhole door mount.
The implementation of the utility model has the following beneficial effects: the device can check the tightness of the manhole door, verify the repairing effect of the sealing surface of the manhole door, ensure that the manhole door can completely seal the generator, shorten the maintenance period of the tightness of the manhole door, and further finish maintenance of the manhole door as soon as possible and put the manhole door into use, finish sealing the generator, and further improve the productivity.
Drawings
The utility model will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic diagram of a manhole door tightness test apparatus in an embodiment of the utility model;
FIG. 2 is a schematic view of a manhole cover plate and a sealing closure plate in an embodiment of the utility model;
fig. 3 is a schematic circuit diagram of an electrical control structure in an embodiment of the utility model.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present utility model, a detailed description of embodiments of the present utility model will be made with reference to the accompanying drawings.
Fig. 1 to 3 show a generator manhole door tightness test device according to some embodiments of the present utility model, which can be used to verify the tightness of a generator manhole door, and verify whether the generator manhole door can completely seal the generator 1, wherein the generator 1 includes a manhole door cover 11 and a manhole door mounting seat 12, and a first sealing ring 111 interposed between the manhole door cover 11 and the manhole door mounting seat 12, the manhole door mounting seat 12 is in a ring shape, the manhole door cover 11 is mounted on the manhole door mounting seat 12, so as to form a sealed space in the generator 1, then the first sealing ring 111 fills a mounting gap between the manhole door cover 11 and the manhole door mounting seat 12, and further improves the tightness of the generator manhole door, and meanwhile, the device further includes a blocking component 2 and a gas filling and discharging component 3, the blocking component 2 is mounted in the manhole door mounting seat 12, so as to form a sealed space a with the manhole door cover 11, the gas filling and discharging component 3 is disposed in the generator 1, and is connected with the blocking component 2, so as to perform gas filling and discharging on the sealed space a formed between the door cover 11 and the blocking component 2, so as to verify the tightness of the generator manhole door.
Specifically, verifying the tightness of the manhole door of the generator is mainly to verify the tightness between the manhole door cover plate 11 and the manhole door mounting seat 12, if the plugging assembly 2 is not mounted in the manhole door mounting seat 12, the whole generator needs to be inflated when the tightness of the manhole door of the generator is verified, thus wasting time and energy and seriously affecting the construction period; after the plugging assembly 2 is installed in the manhole door installation seat 12, the whole generator 1 and the plugging assembly 2 are not required to be inflated and deflated, and only the airtight space A formed between the manhole door cover plate 11 and the plugging assembly 2 is required to be inflated and deflated by the inflation and deflation assembly 3 to verify the tightness between the manhole door cover plate 11 and the manhole door installation seat 12, so that the time for tightness test is effectively shortened, and meanwhile, the pressure in the airtight space A can be monitored in real time, for example, the pressure value in the airtight space A is unchanged within a period of time after the airtight space A is inflated, or leakage detection water is not found to permeate into the airtight space A when the leak detection water is used outside the manhole door cover plate 11 for tightness monitoring, namely the tightness between the manhole door cover plate 11 and the manhole door installation seat 12 is verified to be good, and the tightness of the manhole door of the generator is indicated to be good.
Therefore, the device can check the tightness of the manhole door, verify the repairing effect of the sealing surface of the manhole door, ensure that the manhole door can completely seal the generator, shorten the maintenance period of the tightness of the manhole door, and further finish maintenance of the manhole door as soon as possible and put the manhole door into use, finish sealing the generator, and further improve the productivity.
The plugging assembly 2 in some embodiments includes a sealing plugging plate 21, where the sealing plugging plate 21 is installed in the manhole door installation seat 12 and is used to verify the tightness of the plugging assembly 2, specifically, as shown in fig. 3, a certain airtight space a is formed between the sealing plugging plate 21 and the manhole door cover plate 11, the airtight space a is inflated by the inflation and deflation assembly 3, and then whether the pressure therein changes within a period of time is monitored, or leakage detection water is used outside the plugging assembly 2 to check whether leakage detection water permeates into the plugging assembly 2, and if the pressure value does not change, or leakage detection water does not permeate into the plugging assembly 2, it is indicated that the tightness of the plugging assembly 2 is good.
The plugging assembly 2 in some embodiments further comprises a support column 22, wherein the support column 22 is installed in the generator 1, one end of the support column 22 is in contact with the sealing plugging plate 21, and the other end of the support column is installed on the inner wall of the generator 1 and used for providing support for the sealing plugging plate 21 so as to prevent the sealing plugging plate 21 from falling, and meanwhile, when the inflation and deflation assembly 3 inflates the airtight space A between the sealing plugging plate 21 and the manhole cover plate 11, the sealing plugging plate 21 is subjected to the pressure acted on by gas at the moment, and the support column 22 is used for bearing the pressure to which the sealing plugging plate 21 is subjected after inflation, so that the sealing plugging plate 21 is prevented from being damaged.
Further, the manhole door mount 12 is provided with a first sealing groove 121 in a ring shape facing the end surface of the manhole door cover 11 in some embodiments, the first sealing groove 121 is O-shaped and is located on the outer ring of the manhole door mount 12 and matched with the first sealing ring 111, specifically, when the manhole door cover 11 is mounted on the manhole door mount 12, the first sealing ring 111 is clamped into the first sealing groove 121, and meanwhile, in order to better fill the gap between the manhole door cover 11 and the manhole door mount 12, the thickness of the first sealing ring 111 is about 2mm higher than the depth of the first sealing groove 121, so that when the manhole door cover 11 is mounted on the manhole door mount 12, the first sealing ring 111 is extruded into the mounting gap between the manhole door cover 11 and the manhole door mount 12, and the mounting gap is filled, thereby improving the tightness between the manhole door cover 11 and the manhole door mount 12.
In order to enable the manhole cover plate 11 to be more firmly installed on the manhole door installation seat 12 and prevent the manhole cover plate 11 from falling, in some embodiments, the manhole cover plate 11 is further provided with first bolt holes 112, the first bolt holes 112 are distributed on the outer ring of the manhole cover plate 11, the manhole door installation seat 12 is further provided with second bolt holes 122, the second bolt holes 122 are distributed on the outer ring of the manhole door installation seat 12, the first bolt holes 112 and the second bolt holes 122 are in one-to-one correspondence, specifically, after the manhole cover plate 11 is installed on the manhole door installation seat 12, each first bolt hole 112 is aligned with the corresponding second bolt hole 122, then bolts are used to pass through each first bolt hole 112 and each second bolt hole 122 and lock the manhole cover plate 11 and the manhole door installation seat 12, and the installation of the manhole cover plate 11 and the manhole door installation seat 12 is reinforced.
In order to better install the sealing closure plate 21 within the manhole door mount 12, the sealing closure plate 21 is provided with a second sealing groove 211 and a second sealing ring 212 in some embodiments, the second sealing groove 211 is provided on an outer ring of the sealing closure plate 21 in contact with the manhole door mount 12, and the second sealing ring 212 is installed within the second sealing groove 211. When the sealing closure plate 21 is installed in the manhole door installation seat 12, the second sealing ring 212 is used for filling a gap between the sealing closure plate 21 and the manhole door installation seat 12, so that the tightness of the airtight space A between the sealing closure plate 21 and the manhole door cover plate 11 is improved, and gas is prevented from leaking from the gap between the sealing closure plate 21 and the manhole door installation seat 12 when the airtight space A is inflated. Meanwhile, in order to enhance the tightness of the airtight space a, in the present embodiment, the thickness of the second sealing ring 212 is higher than the depth of the first sealing groove 131 by about 2mm, so that when the sealing closure plate 21 is installed in the manhole door installation seat 12, the second sealing ring 212 can further fill the installation gap between the sealing closure plate 21 and the manhole door installation seat 12, thereby further sealing the tightness of the airtight space a between the sealing closure plate 21 and the manhole door cover plate 11.
The sealing closure plate 21 is further provided with an air vent 213 in some embodiments for connecting the air charging and discharging assembly 3, so that the air charging and discharging assembly 3 charges air to the airtight space A between the sealing closure plate 21 and the manhole door cover plate 11 through the air vent 213, thereby checking the tightness of the manhole door of the generator, or after the tightness test is performed, the air charging and discharging assembly 3 discharges air in the air gap through the air vent 213, thereby facilitating the disassembly of the sealing closure plate 21, and in some embodiments, the sealing closure plate 21 is further provided with a handle, and when the tightness test is completed and the air in the airtight space A between the sealing closure plate 21 and the manhole door cover plate 11 is discharged completely, the sealing closure plate 21 can be disassembled by pulling the handle on the sealing closure plate 21, thereby completing the disassembly of the sealing closure plate 21.
The inflation and deflation assembly 3 in some embodiments comprises a gas tank 31 and a gas inlet valve 32, wherein the gas tank 31 is connected with an inflation hole 213 through a pipeline and is used for supplying gas to a closed space A between the sealing closure plate 21 and the manhole cover plate 11, the gas flows into the closed space A between the sealing closure plate 21 and the manhole cover plate 11 through the pipeline and the inflation hole 213, so that the pressure in the closed space A between the sealing closure plate 21 and the manhole cover plate 11 is increased, the tightness of a manhole door of a generator is further tested, and the gas inlet valve 32 is arranged on the pipeline and is used for controlling the gas to flow into the closed space A between the sealing closure plate 21 and the manhole cover plate 11 from the gas tank 31, so that the device is prevented from being damaged due to the fact that excessive gas flows into the closed space A between the sealing closure plate 21 and the manhole cover plate 11.
The pressure sensor 33 is arranged on the pipeline in some embodiments and is used for monitoring the pressure of gas in the pipeline and preventing the excessive pressure from damaging the inflation and deflation assembly 3, meanwhile, the pressure sensor 33 can also monitor the change of the airtight space A between the sealing closure plate 21 and the manhole door cover plate 11, so as to judge whether the airtight space A between the sealing closure plate 21 and the manhole door cover plate 11 is good or not, and further judge whether the tightness of the manhole door of the generator is good or not, specifically, after the inflation and deflation assembly 3 completes the inflation of the airtight space A between the sealing closure plate 21 and the manhole door cover plate 11, the pressure sensor 33 starts to monitor the airtight space A between the sealing closure plate 21 and the manhole door cover plate 11 if the value of the pressure sensor 33 is not changed for a period of time, so that the airtight space A between the sealing closure plate 21 and the manhole door cover plate 11 has no gas leakage in the period of time, and the tightness of the airtight space A between the sealing closure plate 21 and the manhole door cover plate 11 is good, and the tightness of the manhole door of the generator is good.
Further, in order to better control the inflation and deflation assembly 3 to inflate the plugging assembly 2, in some embodiments, the inflation and deflation assembly 3 further includes an electrical control structure 34 and an exhaust valve 35, the exhaust valve 35 is disposed on the pipeline, the electrical control structure 34 is connected with the pressure sensor 33, the air intake valve 32 and the exhaust valve 35 for controlling the air tank 31 to inflate the airtight space a between the sealing and plugging plate 21 and the manhole door cover plate 11 and to discharge the air therein after the tightness test of the airtight space a between the sealing and plugging plate 21 and the manhole door cover plate 11, specifically, a printer 341, a timer 342, an air intake switch 343, an exhaust switch 344, a power source 345 and a start switch 346 are disposed in the electrical control structure 34, the timer 342 is used for delaying the opening of the air intake switch 343 and the exhaust switch 344, the printer 341 is used to print the value of the pressure sensor 33, further determine the change of pressure more intuitively, the power source 345 is used to supply power, the start switch 346 controls the electric control structure 34 to operate, when the pressure test is needed, in this embodiment, in order to inflate the sealed space a between the sealing closure plate 21 and the manhole door cover plate 11 after the manhole door cover plate 11 is completely sealed, start delay of the inflation and deflation assembly 3 needs to be set, for example, one hour is set, then the time of air intake is set, for example, half an hour is set, then the time of air exhaust and the time of complete closing are set, for example, the air exhaust is started after the inflation is completed for half an hour, and the air exhaust is closed automatically after the air exhaust is completed for half an hour.
After the setting is completed, the power supply is started, the manhole cover plate 11 is started to be installed, the installation is completed within one hour set by the timer 342, the timer 342 controls the air inlet switch 343 to be started after one hour, so that the air inlet valve 32 is opened, the air in the air tank 31 flows into the airtight space A between the airtight closure plate 21 and the manhole cover plate 11 through the pipeline to be inflated, the printer 341 prints the current pressure value every one minute when the power supply is started, the timer 342 controls the air inlet switch 343 to be closed after the air inlet valve 35 is completed, so that the air inlet valve 32 is closed, leakage detection water is used for detecting leakage outside the manhole cover plate 11, whether leakage detection water permeates into the airtight space A between the airtight closure plate 21 and the manhole cover plate 11 or not is checked, whether the sealing surface repairing effect is qualified or not is checked, or whether the airtight space A between the airtight closure plate 21 and the manhole cover plate 11 is leaked or not can be judged through the pressure value printed out by the printer 341, the timer 342 controls the air outlet switch 344 to be opened again after half hour, so that the air outlet valve 35 is controlled to be opened, the air outlet valve 21 is opened, the airtight space A between the airtight closure plate 21 and the manhole cover plate 11 is opened, the air outlet valve 11 is opened, and the manhole closure plate is sealed by opening the air outlet valve 11, and the sealing closure plate is completed.
When the device is used for tightness test, firstly, the air charging and discharging assembly 3 is placed in the generator 1, the supporting column 22 is installed in the generator 1, then the sealing blocking plate 21 is installed in the manhole door installation seat 12, the air charging hole 212 is aligned with the air charging and discharging assembly 3, then the air charging and discharging assembly 3 is started, then the manhole door cover plate 11 is installed on the manhole door installation seat 12, the sealing of the generator 1 is completed, at the moment, the manhole door cover plate 11 and the manhole door installation seat 12 are locked by bolts, the installation of the manhole door cover plate 11 and the manhole door installation seat 12 is reinforced, the air charging and discharging assembly 3 sequentially charges and discharges the blocking assembly 2 under the action of the timer 342, tightness of the blocking assembly 2 is verified in the process, whether the tightness of the blocking assembly 2 is good or not is verified, the manhole door cover plate 11 is opened after verification is completed, the sealing blocking plate 21 is taken out, and finally all the process of the manhole door tightness test is completed.
It will be appreciated that the above technical features may be used in any combination without limitation.
The foregoing is only illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, and all equivalent structures or equivalent flow modifications which may be made by the teachings of the present utility model and the accompanying drawings or which may be directly or indirectly employed in other related art are within the scope of the utility model.
Claims (10)
1. The utility model provides a generator manhole door tightness test device, generator (1) includes manhole door apron (11) and manhole door mount pad (12), and presss from both sides locates manhole door apron (11) and first sealing washer (111) between manhole door mount pad (12), characterized in that includes shutoff subassembly (2) and fills gassing subassembly (3), shutoff subassembly (2) are installed in manhole door mount pad (12) to form airtight space (A) between manhole door apron (11) and shutoff subassembly (2);
the gas charging and discharging assembly (3) is arranged in the generator (1) and is connected with the plugging assembly (2), so that the gas charging and discharging is carried out on a closed space (A) formed between the manhole door cover plate (11) and the plugging assembly (2), and the tightness between the manhole door cover plate (11) and the manhole door mounting seat (12) is verified.
2. The generator manhole door tightness test device according to claim 1, characterized in that the plugging assembly (2) comprises a sealing plug plate (21);
the sealing blocking plate (21) is arranged on the inner wall of the manhole door mounting seat (12) in a sealing mode.
3. The generator manhole door tightness test device according to claim 2, wherein the plugging assembly (2) further comprises a support column (22), the support column (22) is installed in the generator (1), and one end of the support column is in contact with the sealing plugging plate (21) so as to provide support for the sealing plugging plate (21).
4. The generator manhole door tightness test device according to claim 2, wherein a second sealing groove (211) and a second sealing ring (212) are arranged on the outer circumferential surface of the sealing plug plate (21), the second sealing ring (212) is installed in the second sealing groove (211), and the second sealing ring (212) is used for filling a gap between the sealing plug plate (21) and the manhole door installation seat (12).
5. The generator manhole door tightness test device according to claim 2, characterized in that said sealing closure plate (21) is further provided with an inflation hole (213) for connection of said inflation and deflation assembly (3);
the inflation hole (213) is communicated with the inflation and deflation assembly (3) and the airtight space (A).
6. The generator manhole door tightness test device according to claim 5, wherein the inflation and deflation assembly (3) comprises a gas tank (31) and an air inlet valve (32);
the gas tank (31) is connected with the inflating hole (213) through a pipeline so as to inflate a closed space (A) formed between the manhole door cover plate (11) and the plugging assembly (2), and the gas inlet valve (32) is arranged on the pipeline so as to control gas to flow to the closed space (A) formed between the manhole door cover plate (11) and the plugging assembly (2).
7. The generator manhole door tightness test device according to claim 6, wherein a pressure sensor (33) is provided on the pipe to monitor the pressure of the gas in the pipe.
8. The generator manhole door tightness test device according to claim 7, wherein the air charging and discharging assembly (3) further comprises an electric control structure (34) and an air discharging valve (35), wherein the air discharging valve (35) is arranged on the pipeline to discharge air in a closed space (a) formed between the manhole door cover plate (11) and the plugging assembly (2);
the electric control structure (34) is electrically connected with the pressure sensor (33), the air inlet valve (32) and the exhaust valve (35).
9. The generator manhole door tightness test device according to any of claims 1 to 8, wherein a first sealing groove (121) is annularly arranged on the end surface of the manhole door mounting seat (12) facing the manhole door cover plate (11), and the first sealing ring (111) is filled in the first sealing groove (121).
10. The generator manhole door tightness test device according to claim 9, wherein the manhole door cover plate (11) is further provided with a first bolt hole (112), the manhole door mounting seat (12) is further provided with a second bolt hole (122) for a bolt to pass through the first bolt hole (112) and the second bolt hole (122), and the manhole door cover plate (11) and the manhole door mounting seat (12) are locked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320878879.4U CN219870183U (en) | 2023-04-10 | 2023-04-10 | Manhole door tightness test device of generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320878879.4U CN219870183U (en) | 2023-04-10 | 2023-04-10 | Manhole door tightness test device of generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219870183U true CN219870183U (en) | 2023-10-20 |
Family
ID=88341792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320878879.4U Active CN219870183U (en) | 2023-04-10 | 2023-04-10 | Manhole door tightness test device of generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219870183U (en) |
-
2023
- 2023-04-10 CN CN202320878879.4U patent/CN219870183U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101981048B1 (en) | Leak test apparatus of battery case for vehicle | |
| CN109781355B (en) | Fuel cell stack airtightness testing device | |
| CN101021459A (en) | Battery circumferential welding withstand voltage testing device and testing method thereof | |
| CN219870183U (en) | Manhole door tightness test device of generator | |
| KR20220081031A (en) | Tightness test system and test method for valve | |
| CN203758702U (en) | Automatic submersible-type leakage test machine for water pump semi-finished products | |
| US6886389B1 (en) | Systems and methods for detecting and locating leaks in internal pressure vessels | |
| CN117249946A (en) | Airtight check out test set is used in engine support die-casting | |
| KR100914748B1 (en) | Repaired pipe leak tester with vacuum and method thereof | |
| CN201974277U (en) | Air-tight testing device | |
| CN1746647A (en) | Method for testing air tightness of cylinder body and cylinder cover of diesel engine | |
| CN201387374Y (en) | Comprehensive experiment bench for micro-control angle cock and combined dust collector of railway vehicles | |
| CN213813112U (en) | Pressure testing machine | |
| CN112229581A (en) | Filter assembly test bench | |
| CN204188355U (en) | For the Leakage Test device of flange assembly | |
| KR200420482Y1 (en) | carburetor tester | |
| CN209559427U (en) | Seal planar defect air-tightness detection device | |
| CN213842557U (en) | Urea sensor finished product device that leaks hunting | |
| CN109000850B (en) | Air conditioning unit sealing performance testing method | |
| CN206862612U (en) | A kind of on-line testing device of normal pressure tank car emergency discharge device | |
| CN213068106U (en) | Filter assembly test bench | |
| CN220705910U (en) | Portable water pump oil chamber leakage detection device | |
| CN205538135U (en) | Washing machine kettle subassembly is examined missed measure and is tried on clothes and put | |
| CN217304269U (en) | A withstand voltage test frock for verifying explosion-proof lamp casing | |
| CN209326896U (en) | Casing injecting glue seals simulation test device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |