CN212107358U - Self-pressure test gasket - Google Patents
Self-pressure test gasket Download PDFInfo
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- CN212107358U CN212107358U CN202020718336.2U CN202020718336U CN212107358U CN 212107358 U CN212107358 U CN 212107358U CN 202020718336 U CN202020718336 U CN 202020718336U CN 212107358 U CN212107358 U CN 212107358U
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- pressure
- pressure test
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- pipe
- gasket
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- 238000012360 testing method Methods 0.000 title claims abstract description 127
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 18
- 239000010935 stainless steel Substances 0.000 claims abstract description 18
- -1 polytetrafluoroethylene ring Polymers 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 5
- 238000005457 optimization Methods 0.000 description 4
- 230000008439 repair process Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The utility model relates to a self-pressure test gasket, which comprises a polytetrafluoroethylene ring, an annular stainless steel plate, a pipe cap, an O-shaped sealing ring, a pressure test joint, a pressure test pipe, a pressure test groove and an insulating plate; the annular stainless steel plate is provided with a pressure test groove; the pressure test groove is positioned in the annular stainless steel plate between the annular mounting grooves; one end of the pressure test pipe is connected with the pressure test joint, and the other end of the pressure test pipe is connected with the pressure test groove; the insulating plates are fixedly arranged on the annular surfaces on the two sides of the annular stainless steel plate; the same annular mounting groove is formed in each side insulating plate; the polytetrafluoroethylene rings are respectively arranged on the annular mounting grooves on the two sides of the insulating plate in a protruding preset length mode. The pipeline pressure testing device has the advantages of being reasonable in structural design, convenient to operate and use, capable of guaranteeing sealing performance of the pipeline, capable of effectively reducing labor intensity of workers, greatly improving pressure testing efficiency and the like, particularly suitable for pipeline pressure testing in a marine pipe maintenance and rush-repair process, and capable of reducing waste of economic resources. The self-pressure test gasket can be installed in a connecting pipe fitting with insulation requirements.
Description
Technical Field
The utility model relates to a laying and maintenance technical field of pipeline especially relate to a from pressure testing gasket.
Background
Gaskets are important connection elements in mechanical equipment, the laying and maintenance of pipes. The sealing gasket is made of metal or nonmetal plate-shaped materials through processes of cutting, stamping or cutting and the like and is used for sealing connection between connecting pipe fittings such as flanges and the like. In the connection of connecting pipes such as flanges, a relatively soft gasket is brought into contact with the sealing surface of the flange by tightening bolts to form a sealing surface, and the sealing surface is pressed to form a seal, the sealing performance of the surface depending on the degree of pressing of the bolts. However, the excessive pre-tightening force can cause the sealing gasket to generate larger deformation, so that the sealing is ineffective. In the process of connecting the pipelines, the pretightening force of the bolts is specified, after the pipelines are installed, pressure testing needs to be carried out on the flanges or other pipeline elements, the detection method is that the hydraulic pressure test is carried out on the whole pipeline, and liquid is injected into the whole pipeline to carry out the self-sealing test so as to verify the sealing performance of the pipeline. If the sealing gasket is leaked, the liquid of the whole pipeline is completely discharged, the gasket is checked, the whole pipeline is reinstalled, the steps are carried out until the sealing is qualified, and the pipeline is swept to remove the pressure test medium after the sealing gasket is qualified. However, most pipelines are long, and only the medium for pressure test is injected, so that a long time is needed, and a large amount of manpower and material resources are wasted. If maintenance and first-aid repair are carried out on the sea, the maintenance and first-aid repair time is increased, and the loss of economic resources is increased linearly. The utility model discloses just provide based on above-mentioned research background, aim at providing one kind from the pressure testing gasket, can reduce manpower and materials, improve pressure testing efficiency etc..
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: overcome the above-mentioned not enough that seal gasket exists among the prior art, provide a from pressure testing gasket, it has that structural design is reasonable, operation convenient to use, not only can ensure the sealing performance of pipeline, can also effectively reduce workman intensity of labour, improve advantages such as pressure testing efficiency greatly, the pipeline pressure testing of in-process is salvageed in the specially adapted marine vessel maintenance, can reduce economic resources's waste. Furthermore, connecting fittings for pipes with insulation requirements are also suitable.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a self-pressure test gasket is fixedly arranged between two connecting pipes; the self-pressure test gasket comprises a polytetrafluoroethylene ring, an annular stainless steel plate, an O-shaped sealing ring, a pressure test joint, a pressure test pipe, a pressure test groove and an insulating plate; the annular stainless steel plate is provided with a pressure test groove; the pressure testing groove is positioned in the annular stainless steel plate between the annular mounting grooves; one end of the pressure testing pipe is connected with the pressure testing joint, and the other end of the pressure testing pipe is connected with the pressure testing groove; the O-shaped sealing ring is fixedly arranged on the test pressure joint; the insulating plates are fixedly arranged on the annular surfaces on the two sides of the annular stainless steel plate; the insulating plate on each side is provided with the same annular mounting groove; the polytetrafluoroethylene rings are arranged on the annular mounting grooves on the two sides of the insulating plate.
As a further optimization of the scheme, two concentric polytetrafluoroethylene rings with different radiuses are arranged on the insulating plate on each side, and a pressure test hole is formed between the two polytetrafluoroethylene rings of the insulating plate on each side and corresponds to the pressure test groove.
As the further optimization of the scheme, the self-pressure test gasket further comprises a pipe cap, the pipe cap is in threaded connection with the pressure test connector, and the O-shaped sealing ring is arranged at the joint of the pressure test connector.
As a further optimization of the scheme, the pressure test connector can be further provided with a three-way pipe, one end of the three-way pipe is connected with the pressure test connector, and the other two ends of the three-way pipe are respectively connected with a pressure gauge, an air supply pipe or a liquid supply pipe.
As a further optimization of the scheme, the self-pressure-testing gasket further comprises a manual pressure testing device, wherein the manual pressure testing device comprises a manual oil pump, a high-pressure oil pipe, a valve, a quick connector and a submersible pressure gauge; the manual oil pump is connected with a valve, and the valve is connected with one end of the high-pressure oil pipe; the quick connector is respectively connected with the other end of the high-pressure oil pipe, the pressure test connector and the submersible pressure gauge.
Adopt the utility model discloses a from pressure testing gasket has following beneficial effect:
through well installing the connecting pipe fitting and from the pressure testing gasket, unscrew the pipe cap, operating personnel can install a tee bend on the pressure testing connects, will pressurize the hose and manometer of pump and be connected with the tee bend, start the pump, the pressure testing medium passes through the pressure testing hole and pours into in the seal groove. Observe the manometer, rise pressure to the pressure that awaits measuring after the shut-off valve carries out the pressurize, during the pressurize, the pressure drop is in the allowed band or not have the pressure drop, explains sealed good, lets out pressure after the pressure test, installs the pipe cap again on the pressure test head, accomplishes self sealedly pressure testing. From pressure testing seal gasket not only has good sealing performance still has simultaneously from the pressure testing ability, need not carry out the pressure testing to whole pipeline after the installation finishes, and easy operation is convenient, has saved a large amount of manpower and materials. Particularly, a large amount of time can be saved in the process of maintenance and first-aid repair of the marine pipeline, and the waste of economic resources is reduced. Furthermore, connecting fittings for pipes with insulation requirements are also suitable.
Drawings
Figure 1 is the utility model discloses install the schematic structure between the connecting pipe from the pressure testing gasket.
Figure 2 is the utility model discloses from the positive structure schematic diagram of pressure testing gasket.
FIG. 3 is a schematic cross-sectional view taken along line X-X in FIG. 2.
Fig. 4 is a schematic cross-sectional view at a in fig. 3.
Detailed Description
The self-pressure-testing gasket of the present invention will be described in detail with reference to fig. 1-4.
A self-pressure test gasket is fixedly arranged between two connecting pipes 1 and 2; the self-pressure test gasket comprises a polytetrafluoroethylene ring 3, an annular stainless steel plate 4, an O-shaped sealing ring 6, a pressure test joint 7, a pressure test pipe 8, a pressure test groove 9 and an insulating plate 10; the annular stainless steel plate is provided with a pressure test groove; the pressure testing groove is positioned in the annular stainless steel plate between the annular mounting grooves; one end of the pressure testing pipe is connected with the pressure testing joint, and the other end of the pressure testing pipe is connected with the pressure testing groove; the O-shaped sealing ring is fixedly arranged on the test pressure joint; the insulating plates are fixedly arranged on the annular surfaces on the two sides of the annular stainless steel plate; the insulating plate on each side is provided with the same annular mounting groove; the polytetrafluoroethylene rings are respectively arranged on the annular mounting grooves on the two sides of the insulating plate in a protruding preset length mode. The annular stainless steel plate 4 is connected with the insulating plates on two sides in a bonding mode, two concentric polytetrafluoroethylene rings 3 with different radiuses are arranged on the insulating plate 10 on each side, and a pressure test hole is formed in the position, corresponding to the pressure test groove, between the two polytetrafluoroethylene rings of the insulating plate on each side. The self-pressure-test gasket further comprises a pipe cap 5, the pipe cap is in threaded connection with the pressure-test joint 7, and the O-shaped sealing ring is arranged at the joint of the pressure-test joint. The pressure test connector can be further provided with a three-way pipe, one end of the three-way pipe is connected with the pressure test connector, and the other two ends of the three-way pipe are respectively connected with a pressure gauge, an air supply pipe or a liquid supply pipe. The self-pressure test gasket also comprises a manual pressure test device, wherein the manual pressure test device comprises a manual oil pump, a high-pressure oil pipe, a valve, a quick connector and a submersible pressure gauge; the manual oil pump is connected with a valve, and the valve is connected with one end of the high-pressure oil pipe; the quick connector is respectively connected with the other end of the high-pressure oil pipe, the pressure test connector and the submersible pressure gauge.
The utility model discloses from pressure testing gasket's application method as follows:
through well installing the connecting pipe fitting and from the pressure testing gasket, unscrew the pipe cap, operating personnel can install a tee bend on the pressure testing connects, will pressurize the hose and manometer of pump and be connected with the tee bend, start the pump, the pressure testing medium passes through the pressure testing hole and pours into in the seal groove. Observe the manometer (the manometer adopts common detection manometer, and specific model, range can be selected according to the pressure needs of its application environment, pressure testing medium type), rise pressure to the pressure that awaits measuring back shut-off valve and carry out the pressurize, during the pressurize, the pressure drop is at the allowed band or not the pressure drop, explains sealed well, lets out pressure after the pressure test, on reinstalling the pressure test head with the pipe cap, accomplish self sealedly pressure testing. From pressure testing seal gasket not only has good sealing performance still has simultaneously from the pressure testing ability, need not carry out the pressure testing to whole pipeline after the installation finishes, and easy operation is convenient, has saved a large amount of manpower and materials. Particularly, a large amount of time can be saved in the process of maintenance and first-aid repair of the marine pipeline, and the waste of economic resources is reduced. Furthermore, connecting fittings for pipes with insulation requirements are also suitable.
The embodiments described above are intended to facilitate one of ordinary skill in the art to understand and practice the invention. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the embodiments herein, and those skilled in the art should understand that modifications and alterations made without departing from the scope of the present invention are within the protection scope of the present invention.
Claims (5)
1. A self-pressure test gasket is characterized in that: the self-pressure test gasket is fixedly arranged between the two connecting pipes (1 and 2); the self-pressure-testing gasket comprises a polytetrafluoroethylene ring (3), an annular stainless steel plate (4), an O-shaped sealing ring (6), a pressure-testing joint (7), a pressure-testing pipe (8), a pressure-testing groove (9) and an insulating plate (10); the annular stainless steel plate is provided with a pressure test groove; the pressure testing groove is positioned in the annular stainless steel plate between the annular mounting grooves; one end of the pressure testing pipe is connected with the pressure testing joint, and the other end of the pressure testing pipe is connected with the pressure testing groove; the O-shaped sealing ring is fixedly arranged on the test pressure joint; the insulating plates are fixedly arranged on the annular surfaces on the two sides of the annular stainless steel plate; the insulating plate on each side is provided with the same annular mounting groove; the polytetrafluoroethylene rings are arranged on the annular mounting grooves on the two sides of the insulating plate.
2. The self-testing pressure gasket of claim 1, wherein: the annular stainless steel plate (4) is connected with the insulating plates on two sides in a bonding mode, two concentric polytetrafluoroethylene rings (3) with different radiuses are arranged on the insulating plate (10) on each side, and pressure test holes are formed in the positions, corresponding to the pressure test grooves, between the two polytetrafluoroethylene rings of the insulating plate on each side.
3. The self-testing pressure gasket of claim 1, wherein: this from pressure testing gasket still includes pipe cap (5), pipe cap threaded connection sets up on the pressure testing connector (7), O type sealing washer sets up the articulate department that the pressure testing connects.
4. The self-testing pressure gasket of claim 1, wherein: the pressure test connector can be further provided with a three-way pipe, one end of the three-way pipe is connected with the pressure test connector, and the other two ends of the three-way pipe are respectively connected with a pressure gauge, an air supply pipe or a liquid supply pipe.
5. The self-testing pressure gasket of claim 1, wherein: the self-pressure test gasket also comprises a manual pressure test device, wherein the manual pressure test device comprises a manual oil pump, a high-pressure oil pipe, a valve, a quick connector and a submersible pressure gauge; the manual oil pump is connected with a valve, and the valve is connected with one end of the high-pressure oil pipe; the quick connector is respectively connected with the other end of the high-pressure oil pipe, the pressure test connector and the submersible pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020718336.2U CN212107358U (en) | 2020-05-06 | 2020-05-06 | Self-pressure test gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020718336.2U CN212107358U (en) | 2020-05-06 | 2020-05-06 | Self-pressure test gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212107358U true CN212107358U (en) | 2020-12-08 |
Family
ID=73618171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020718336.2U Active CN212107358U (en) | 2020-05-06 | 2020-05-06 | Self-pressure test gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212107358U (en) |
-
2020
- 2020-05-06 CN CN202020718336.2U patent/CN212107358U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240531 Address after: 065802 Lu Fu Zhuang Cun, Xin Zhen, Wen'an County, Langfang City, Hebei Province Patentee after: Langfang Yongchun Industrial Product Co.,Ltd. Country or region after: China Patentee after: CNOOC DEVELOPMENT ZHUHAI PIPELINE ENGINEERING Co.,Ltd. Address before: 065802 Lu Fu Zhuang Cun, Xin Zhen, Wen'an County, Langfang City, Hebei Province Patentee before: Zhou Qingtao Country or region before: China |