CN211668725U - Air pressure test device for directional cyclic utilization of high-pressure pipeline system - Google Patents
Air pressure test device for directional cyclic utilization of high-pressure pipeline system Download PDFInfo
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- CN211668725U CN211668725U CN202020612980.1U CN202020612980U CN211668725U CN 211668725 U CN211668725 U CN 211668725U CN 202020612980 U CN202020612980 U CN 202020612980U CN 211668725 U CN211668725 U CN 211668725U
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Abstract
The utility model relates to a be used for directional cyclic utilization atmospheric pressure test device of high-pressure piping system belongs to gaseous fire extinguishing systems test device. The structure of the test device is divided into a fixed base of the device and a pipeline system directional cyclic utilization air pressure module; in the pipeline system directional cyclic utilization air pressure module: the gas inlet end of the high-pressure pipeline is sequentially provided with a pressurizing gas inlet connector, a first high-pressure gate valve, an anti-vibration oil seal pressure gauge and a second high-pressure gate valve; the second high-pressure gate valve is respectively connected with the first high-pressure elbow and the second high-pressure tee through the first high-pressure tee; the second high-pressure tee is connected with the second high-pressure elbow; and the second high-pressure elbow, the second high-pressure tee joint and the first high-pressure elbow are respectively connected with the first interface of the to-be-tested pressure protection area, the second interface of the to-be-tested pressure protection area and the third interface of the to-be-tested pressure protection area through a third high-pressure gate valve, a fourth high-pressure gate valve and a fifth high-pressure gate valve.
Description
Technical Field
The utility model relates to a gaseous high-pressure line gas of putting out a fire tests modularization, simplification test device belongs to gaseous fire extinguishing system test device.
Background
At present, a pipeline of a gas fire extinguishing system needs to be pressurized for leakage test in the installation process of the gas fire extinguishing system, and a method generally adopted by the traditional gas fire extinguishing high-pressure pipeline pressurization test is that a high-pressure straight pipe section consisting of a single valve and a single pressure gauge is connected through a gas cylinder, and the high-pressure pipeline is connected through the straight pipe section for test. The traditional device needs to be pressed one by one in a protection area and exhausted one by one, the operation is complex, the safety is low, the pressing work efficiency is low, and high-pressure gas used for pressing is only used once, so that waste is caused.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome the not enough of test is suppressed to current gaseous high-pressure line gas of putting out a fire, its aim at provides one kind and is used for the directional cyclic utilization atmospheric pressure test device of high-pressure piping system, simple easy operation, raise the efficiency, has realized suppressing gaseous cyclic utilization.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:
a is used in the high-pressure pipeline system and orients the atmospheric pressure test device of cyclic utilization, the structure of the test device is divided into pipeline system and orients the fixed base which recycles the atmospheric pressure module and apparatus;
in the pipeline system directional cyclic utilization air pressure module: the gas inlet end of the high-pressure pipeline is sequentially provided with a pressurizing gas inlet connector, a first high-pressure gate valve, an anti-vibration oil seal pressure gauge and a second high-pressure gate valve;
the second high-pressure gate valve is respectively connected with the first high-pressure elbow and the second high-pressure tee through the first high-pressure tee; the second high-pressure tee is connected with the second high-pressure elbow;
and the second high-pressure elbow, the second high-pressure tee joint and the first high-pressure elbow are respectively connected with the first interface of the to-be-tested pressure protection area, the second interface of the to-be-tested pressure protection area and the third interface of the to-be-tested pressure protection area through a third high-pressure gate valve, a fourth high-pressure gate valve and a fifth high-pressure gate valve.
Furthermore, the type of the first high-pressure gate valve, the second high-pressure gate valve, the third high-pressure gate valve, the fourth high-pressure gate valve or the fifth high-pressure gate valve is a stainless steel internal thread high-pressure gate valve.
Further, the type of the first high-pressure tee or the second high-pressure tee is a hot-dip galvanizing high-pressure tee.
Further, the first high-pressure elbow or the second high-pressure elbow is of the type of hot-dip galvanized high-pressure elbow.
When the pressurizing test is carried out, the corresponding valve is opened or closed according to a system to be pressurized, high-pressure gas is pressurized and filled in one protection area through the device to be subjected to pressure test, and after the pressure test is finished, the gas is automatically transferred into the other protection area to be recycled through the control of the valve in the device, so that the recycled gas is formed and is efficiently recycled.
The utility model has the advantages that: after one protection zone is tested and pressed, gas is automatically transferred into the other protection zone for recycling through the valve control in the device, and the valve and the pipeline are assembled in a modularized mode, so that the structure is simple and practical.
Drawings
Fig. 1 is a schematic view of the planar structure of the present invention.
In the figure: 1. pressurizing the gas inlet interface; 2. a first high-pressure gate valve; 3. a shock-proof oil seal pressure gauge; 4. a second high-pressure gate valve; 5. a first high pressure elbow; 6. a first high-pressure tee; 7. a second high-pressure tee; 8. a second high pressure elbow; 9. a third high pressure gate valve; 10. a port of the simulated pressure test protection area; 11. a fourth high-pressure gate valve; 12. a second interface of the pressure test simulation protection area; 13. a fifth high-pressure gate valve; 14. a third interface of a simulated pressure test protection area; 15. the fixed base of the device.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a is used in the high-pressure pipeline system and orients the cyclic utilization atmospheric pressure test unit;
the structure of the test device is divided into a fixed base 15 of the device and a pipeline system directional cyclic utilization air pressure module;
in the pipeline system directional cyclic utilization air pressure module: the gas inlet end of the high-pressure pipeline is sequentially provided with a pressurized gas inlet interface 1, a first high-pressure gate valve 2, a shock-proof oil seal pressure gauge 3 and a second high-pressure gate valve 4;
the second high-pressure gate valve 4 is respectively connected with a first high-pressure elbow 5 and a second high-pressure tee 7 through a first high-pressure tee 6; the second high-pressure tee 7 is connected with a second high-pressure elbow 8;
and the second high-pressure elbow 8, the second high-pressure tee 7 and the first high-pressure elbow 5 are respectively connected with a first interface 10 of a to-be-tested pressure protection area, a second interface 12 of the to-be-tested pressure protection area and a third interface 14 of the to-be-tested pressure protection area through a third high-pressure gate valve 9, a fourth high-pressure gate valve 11 and a fifth high-pressure gate valve 13.
Further, the type of the first high-pressure gate valve 2, the second high-pressure gate valve 4, the third high-pressure gate valve 9, the fourth high-pressure gate valve 11 or the fifth high-pressure gate valve 13 is a stainless steel internal thread high-pressure gate valve.
Further, the type of the first high-pressure tee 6 or the second high-pressure tee 7 is a hot-dip galvanizing high-pressure tee.
Further, the first high-pressure elbow 5 or the second high-pressure elbow 8 is of the type that is hot dip galvanised.
In fig. 1, high-pressure gas passes through a pressurizing gas inlet port 1, sequentially passes through a first high-pressure gate valve 2, a shock-resistant oil seal pressure gauge 3 and a second high-pressure gate valve 4 through a hot-dip galvanized steel pipe, and then respectively enters each interface of a to-be-tested pressure protection area, and a stainless steel internal thread high-pressure gate valve, namely a third high-pressure gate valve 9, a fourth high-pressure gate valve 11 and a fifth high-pressure gate valve 13, is respectively arranged in front of each interface of the to-be-tested pressure protection area.
In order to ensure the connection tightness among high-pressure pipeline systems, each hot-dip galvanizing high-pressure tee joint and each hot-dip galvanizing high-pressure elbow are connected with the hot-dip galvanizing high-pressure steel pipe by screw threads.
The device comprises: in the embodiment, high-pressure gas passes through a pressurizing gas inlet port 1, passes through a first high-pressure gate valve 2, a shock-resistant oil seal pressure gauge 3, a second high-pressure gate valve 4, a first high-pressure tee 6, a first high-pressure elbow 5, a second high-pressure tee 7, a second high-pressure elbow 8, a third high-pressure gate valve 9, a fourth high-pressure gate valve 11 and a fifth high-pressure gate valve 13 in sequence, and sequentially and respectively enters a first port 10 of a to-be-tested pressure protection area, a second port 12 of the to-be-tested pressure protection area, a third port 14 of the to-be-tested pressure protection area and a fixed base 15 of the device.
The air-out pipeline pressurization test operation flow is as follows:
1. the test requirements are as follows: the pressure for testing the air pressure strength of the pipeline in the engineering is 10.5Mpa as the test pressure according to the standard and design requirements. The test adopts high-pressure nitrogen provided by a professional supplier as a pressurizing medium, the nitrogen of the pressurizing medium is used for pre-testing before the test, and the pre-testing pressure is 0.2 MPa.
2, and a pressure test implementation stage of the air-out pipeline: after the pre-test is qualified, slowly releasing the high-pressure gas in the gas cylinder into the high-pressure gas extinguishing pipeline, gradually and slowly increasing the pressure at a pressure increasing rate of not more than 0.5Mpa/s, when the pressure is increased to 50% of the test pressure, namely 5MPa, suspending the pressurization and checking the pipeline, if no abnormal state or leakage is found, continuously increasing the pressure step by step according to 10% of the test pressure, stabilizing the pressure at each step for 3min, and checking whether the pipeline deforms or leaks until the test pressure reaches 10.5 MPa. And (5) maintaining pressure, and checking whether the pipeline has no deformation or leakage at each position to judge that the pressure test is qualified.
The utility model discloses a practical device operation use:
when testing the pressure test of the interface 10 of the protection area to be tested: after the pressure maintaining is qualified through the pre-test, the high-pressure gas cylinder is connected with the pressurizing gas inlet port 1 through the metal hose, the initial state of the device is the state that all stainless steel internal thread high-pressure gate valves are closed, the first high-pressure gate valve 2, the second high-pressure gate valve 4 and the third high-pressure gate valve 9 are opened, the high-pressure gas in the gas cylinder is released through the pressurizing gas inlet port 1, then the pressure maintaining is carried out according to the implementation requirement of the high-pressure gas extinguishing pipeline pressure maintaining test, and the pressure test in a pressure test protection area is qualified if all parts of the pipeline are not deformed and leak.
When the pressure test is carried out on the interface 12 of the protection area to be tested (the primary circulation stage of high-pressure gas): in the first stage (recycling stage), on the basis of the previous process, the fourth high-pressure gate valve 11 is opened, high-pressure gas in the pipeline of the first interface 10 of the to-be-tested pressure protection area is released into the pipeline of the first interface 12 of the to-be-tested pressure protection area, and the third high-pressure gate valve 9 is closed when the air pressure in the two test system pipes reaches a balance value. And in the second stage (boosting stage), the first high-pressure gate valve 2 is opened, gas in the high-pressure gas cylinder is released to supplement the gas pressure in the pipeline of the second connector 12 of the protection area to be tested, and then the test pressure is up to 10.5MPa according to the implementation requirement of the high-pressure gas extinguishing pipeline pressure test. And in the third stage (pressure maintaining stage), the first high-pressure gate valve 2 is closed for pressure maintaining, and the qualified pressure test is regarded as that no deformation or leakage exists at each position of the pipeline.
When the three-interface 14 pressure test of the protection area to be tested is tested (the secondary circulation stage of high-pressure gas): in the first stage (recycling stage), on the basis of the previous process, the fourth high-pressure gate valve 11 is firstly closed, then the third high-pressure gate valve 9 and the fifth high-pressure gate valve 13 are opened, so that the air pressure in the pipeline of the interface 10 of the protection area to be tested is evenly distributed to the pipeline of the interface 14 of the protection area to be tested, and after the value of the pressure gauge is stable, the third high-pressure gate valve 9 is closed (the pressure in the protection area is utilized for 1 time). And (3) opening the fourth high-pressure gate valve 11, uniformly distributing the high-pressure gas in the pipeline of the second connector 12 of the protection area to be tested with qualified pressure into the pipeline of the third connector 14 of the protection area to be tested, and closing the fourth high-pressure gate valve 11 (utilizing the second pressure of the protection area for 2 times) after the value of the pressure gauge is stable. In the second stage (boosting stage), the first high-pressure gate valve 2 is opened, high-pressure gas in the gas cylinder is released to enter the three interfaces 14 of the to-be-tested pressure protection area to supplement the pressure in the pipe, and then the test pressure is up to 10.5MPa according to the implementation requirements of the high-pressure gas extinguishing pipeline pressure test. In the third stage (pressure maintaining stage), the first high-pressure gate valve 2 is closed for pressure maintaining, and the condition that no deformation or leakage exists at each position of the pipeline is detected to be qualified in pressure testing.
The high-pressure pipeline system directional cyclic utilization air pressure test device is adopted, all protection areas to be tested are sequentially connected to the device in a cyclic mode among the air cylinders, cyclic operation tests are conducted, and high-pressure gas is recycled step by step.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a be used for directional cyclic utilization atmospheric pressure test device of high pressure piping system which characterized in that:
the structure of the test device is divided into a fixed base (15) of a pipeline system directional cyclic utilization air pressure module and the device;
in the pipeline system directional cyclic utilization air pressure module: a pressurizing gas inlet connector (1), a first high-pressure gate valve (2), a shock-proof oil seal pressure gauge (3) and a second high-pressure gate valve (4) are sequentially arranged at the gas inlet end of the high-pressure pipeline;
the second high-pressure gate valve (4) is respectively connected with the first high-pressure elbow (5) and the second high-pressure tee (7) through the first high-pressure tee (6); the second high-pressure tee (7) is connected with a second high-pressure elbow (8);
and the second high-pressure elbow (8), the second high-pressure tee (7) and the first high-pressure elbow (5) are respectively connected with a first interface (10) of a to-be-tested pressure protection area, a second interface (12) of the to-be-tested pressure protection area and a third interface (14) of the to-be-tested pressure protection area through a third high-pressure gate valve (9), a fourth high-pressure gate valve (11) and a fifth high-pressure gate valve (13).
2. The apparatus for directional cyclic utilization of air pressure for high pressure piping systems of claim 1, wherein: the first high-pressure gate valve (2), the second high-pressure gate valve (4), the third high-pressure gate valve (9), the fourth high-pressure gate valve (11) or the fifth high-pressure gate valve (13) are stainless steel internal thread high-pressure gate valves.
3. The apparatus for directional cyclic utilization of air pressure for high pressure piping systems of claim 1, wherein: the first high-pressure tee joint (6) or the second high-pressure tee joint (7) is in a hot-dip galvanizing high-pressure tee joint type.
4. The apparatus for directional cyclic utilization of air pressure for high pressure piping systems of claim 1, wherein: the first high-pressure elbow (5) or the second high-pressure elbow (8) is of the type of hot-dip galvanized high-pressure elbow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020612980.1U CN211668725U (en) | 2020-04-22 | 2020-04-22 | Air pressure test device for directional cyclic utilization of high-pressure pipeline system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020612980.1U CN211668725U (en) | 2020-04-22 | 2020-04-22 | Air pressure test device for directional cyclic utilization of high-pressure pipeline system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211668725U true CN211668725U (en) | 2020-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020612980.1U Expired - Fee Related CN211668725U (en) | 2020-04-22 | 2020-04-22 | Air pressure test device for directional cyclic utilization of high-pressure pipeline system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211668725U (en) |
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2020
- 2020-04-22 CN CN202020612980.1U patent/CN211668725U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201013 Termination date: 20210422 |