CN202149833U - Air pressure tester - Google Patents
Air pressure tester Download PDFInfo
- Publication number
- CN202149833U CN202149833U CN201120193602U CN201120193602U CN202149833U CN 202149833 U CN202149833 U CN 202149833U CN 201120193602 U CN201120193602 U CN 201120193602U CN 201120193602 U CN201120193602 U CN 201120193602U CN 202149833 U CN202149833 U CN 202149833U
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- Prior art keywords
- valve
- carburetor
- pipeline
- pump housing
- gas pressure
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Abstract
The utility model relates to an air pressure tester, comprising a liquid storage tank, a pump body and a carburetor, wherein the pump body is equipped with a motor, the liquid storage tank is connected to the pump body through a suction pipeline, the pump body is connected to the liquid storage tank through a reflux pipeline, the pump body is connected to the carburetor through a pumping pipeline, the carburetor is also connected to a vaporizing pipeline, the suction pipeline is provided with a suction valve, the reflux pipeline is provided with a reflux valve, and the vaporizing pipeline is provided with a control valve. A low pressure system and a high pressure system are integrated into one apparatus, a low temperature liquid in the liquid storage tank enters into the pump body (namely liquid pump) through a pipeline, and then is sent to the carburetor, a high pressure gas is formed by the vaporization of the carburetor, so as to supply air to a system to be tested, the air pressure is convenient for adjusting, a high pressure can be continuously supplemented when needed, thus solving the problem of difficulty of timely supplement due to large consumption of air.
Description
Technical field
The utility model belongs to technical field of building construction, relates to a kind of device that high pressure, cleaning (dry, oil free) pressure testing source of the gas can be provided, and relates in particular to a kind of gas pressure test device.
Background technology
After piping erection such as chemical plant installations system, ethene ice chest system, interior compression space division system finish,, need do gas pressure test, and the section of tubing test pressure is higher by corresponding code requirement.Traditional gas pressure test method is the oil-free compressed air that the employing air compressor machine provides 0.6-0.8MPa, again through bottled nitrogen pressure.Because system test pressure is higher, even reaches more than the 20MPa, and the required high pressure gas scale of construction is big.Pressurization is slow, the bottled gas loss is big and above-mentioned test method exists, and causes shortcomings such as being difficult to reach test pressure, can not adapt to the construction demand fully.
Summary of the invention
The purpose of the utility model is to solve the problems referred to above of prior art existence and a kind of gas pressure test device is provided, and integrating low-pressure system and high-pressure system is a device, the cryogenic liquid in the fluid reservoir; Get into the pump housing through pipeline and be pumped into carburetor; Vaporization formation gases at high pressure through carburetor are treated the pressure testing system air feed, and the convenient air pressure of regulating is when needing high pressure; Can replenish continually, solve because of big, the timely problem of replenishing difficulty of gas consumption.
The above-mentioned technical purpose of the utility model mainly solves through following technical scheme: the gas pressure test device; It is characterized in that comprising fluid reservoir, the pump housing, carburetor, be furnished with motor on the said pump housing, described fluid reservoir is connected with the pump housing through suction line; The said pump housing is connected with fluid reservoir through return line; The said pump housing is connected with carburetor through the pumping pipeline again, also connects the vaporization pipeline on the said carburetor, and said suction line is provided with suction valve; Said return line is provided with reverse flow valve, and said vaporization pipeline is provided with operation valve.In order to improve test effect, the pump housing adopts the pump housing of band refrigeration system, and the liquid that flows into pump head from fluid reservoir is cooled, and when carburetor is vaporized, still keeps low-temperature condition, only makes vaporizing liquid increase gaseous tension, arrives testing requirements.
As the further of technique scheme improved and replenish, the utility model adopts following technical measures: described vaporization pipeline also is provided with the pressure switch that is connected with the motor signal, and said pressure switch is arranged between carburetor and the operation valve.When the pressure on the pumping pipeline surpasses set pressure, the pressure switch action, cutting off the electricity supply automatically stops pump housing operation, and pressure is reduced.
Described vaporization pipeline tightens adjacent operation valve place and also is provided with non-return valve, prevents that gas from flowing backwards.
Also be provided with the impact damper and first atmospheric valve on the described pumping pipeline, said impact damper is near the pump housing, and said first atmospheric valve is near carburetor.Being provided with of impact damper is beneficial to the flow velocity that the pumping of the mitigation pump housing is come out, and reduces the impact to carburetor.The setting of first atmospheric valve, when being used for this device and stopping using, the liquid in this pipeline of emptying.
First safety valve also is set on the said impact damper, between carburetor and operation valve, is provided with the 4th safety valve on the said vaporization pipeline, the 3rd safety valve is set on the said fluid reservoir.Safety valve is used to improve the safety in utilization of impact damper and fluid reservoir.
Between the reverse flow valve and the pump housing, be provided with second atmospheric valve and second safety valve on the described return line.The position, second safety valve that are arranged near the pump housing according to use habit second atmospheric valve are arranged on the position near reverse flow valve.The use of second atmospheric valve and second safety valve is as stated similar.
Be provided with on the said fluid reservoir on first tensimeter, the vaporization pipeline second tensimeter is set, this second tensimeter is arranged between the 4th safety valve and the pressure switch.Through tensimeter can be directly perceived pressure.
Be provided with respectively on described suction line and the return line around the property adapter.The position being set and reducing the influence of pump housing vibrations around the convenient adjusting pump housing of being provided with of property adapter to pipeline.
The beneficial effect that the utlity model has: 1, integrating low-pressure system and high-pressure system is a device; Cryogenic liquid in the fluid reservoir gets into the pump housing (being the liquid pump) through pipeline and delivers to carburetor, treats the pressure testing system air feed through the vaporization formation gases at high pressure of carburetor; The convenient air pressure of regulating; When needing high pressure, can replenish continually, solve because of big, the timely problem of replenishing difficulty of gas consumption.2,, improve the safety in utilization of whole device through the setting of each safety valve and pressure switch.3, suction valve, return valve, operation valve be used to control the participation work of each pipeline or close, and non-return valve play the effect that prevents suck-back.4, tensimeter is used for intuitively observing the pressure in this device.5, the liquid that is stored in this device in the fluid reservoir is cryogenic liquid, after pump housing supercharging, is high pressure low temperature liquid, behind carburetor, is vaporized into the gases at high pressure that are not less than 10 ℃ of environment temperatures, more is applicable to test.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically the technical scheme of the utility model.
Embodiment: the gas pressure test device, as shown in Figure 1, it comprises fluid reservoir 1, is combined with the pump housing 2 of motor 25, carburetor 3, and the 3rd safety valve 18 is set on the fluid reservoir 1.Fluid reservoir 1 is connected with the pump housing 2 through suction line 4; The pump housing 2 is connected with fluid reservoir 1 through return line 5, and the pump housing 2 is connected with carburetor 3 through pumping pipeline 6 again, also connects vaporization pipeline 7 on the carburetor 3; Suction line 4 is provided with suction valve 8; Return line 5 is provided with reverse flow valve 9, and vaporization pipeline 7 is provided with operation valve 10, and filling opening 26 is set on the fluid reservoir.
Mounting pump 2 for ease, also are provided with respectively around property adapter 22 on suction line 4 and the return line 5.
Also be provided with the impact damper 13 and first atmospheric valve 14 on the pumping pipeline 6, impact damper 13 near the pump housing 2, the first atmospheric valves 14 near carburetor 3.First safety valve 15 also is set on the impact damper 13.
Vaporization pipeline 7 also is provided with the pressure switch 11 that is connected with motor 25 signals, pressure switch 11 and non-return valve 12, and pressure switch 11 is arranged between carburetor 3 and the operation valve 10, and between the carburetor 3 and second tensimeter 20, the 4th safety valve 23 is set.Non-return valve 12 is arranged on the generating tube terminal portion of carburetor far away.
Observe pressure for ease, be provided with on the fluid reservoir 1 on first tensimeter 19, the vaporization pipeline 6 second tensimeter 20 is set, this second tensimeter 20 is arranged between second safety valve 23 and the pressure switch 11.
The specific operation process of this gas pressure test device:
1) starts the gas pressure test device
1. the refrigeration system that starts on the pump housing 2 is carried out precooling to pump, cooled off about 5 minutes, and the reverse flow valve 9 on the standard-sized sheet return line 5 then, the suction valve 8 on the liquid suction line 4, the pump housing 2 starts, the pumping work of the pump housing 2 begins, and its suction pressure must be greater than 0.02MPa.
2. behind the motor 25 that starts on the pump housing, revolution speed is transferred to 150r.p.m. (slip clutch speed governing), whether the running of observing pump is normal, after all are normal, progressively improves rotating speed to 750 r.p.m..
3. suction valve in the system 8, operation valve 10 are closed, slowly open suction valve 8 then, when frost mist appears in the suction line outside surface; Slow opening controlling valve 10; Progressively open big operation valve 10 again, after evaporating capacity reaches requirement, stablize the aperture of suction valve 8 and operation valve 10.
4. if the frosting phenomenon appears in last row's fin or gas outlet on the carburetor 3, show that the feed liquor amount is excessive, must turn down suction valve 8 immediately, and keep carburetor 3 outlet temperatures to be not less than-10 ℃.
2) boost
Open the operation valve 2 on the vaporization pipeline, the high-pressure steam source of use carburetor is treated pressure testing system 24 and is carried out air feed, and treats pressure testing system and continue progressively slowly pressure boost, until the test pressure that reaches system.
Claims (9)
1. gas pressure test device; It is characterized in that comprising fluid reservoir (1), the pump housing (2), carburetor (3), be furnished with motor (25) on the said pump housing (2), described fluid reservoir (1) is connected with the pump housing (2) through suction line (4); The said pump housing (2) is connected with fluid reservoir (1) through return line (5); The said pump housing (2) is connected with carburetor (3) through pumping pipeline (6) again, also connects vaporization pipeline (7) on the said carburetor (3), and said suction line (4) is provided with suction valve (8); Said return line (5) is provided with reverse flow valve (9), and said vaporization pipeline (7) is provided with operation valve (10).
2. gas pressure test device according to claim 1; It is characterized in that described vaporization pipeline (7) also is provided with the pressure switch (11) that is connected with motor (25) signal, said pressure switch (11) is arranged between carburetor (3) and the operation valve (10).
3. gas pressure test device according to claim 2 is characterized in that described vaporization pipeline (7) upward is close to operation valve (10) and locates also to be provided with non-return valve (12).
4. according to claim 1 or 2 or 3 described gas pressure test devices; It is characterized in that also being provided with on the described pumping pipeline (6) impact damper (13) and first atmospheric valve (14); Said impact damper (13) is near the pump housing (2), and said first atmospheric valve (14) is near carburetor (3).
5. gas pressure test device according to claim 4; It is characterized in that also being provided with on the said impact damper (13) first safety valve (15); Said vaporization pipeline (7) is gone up and between carburetor (3) and operation valve (10), is provided with the 4th safety valve (23), and the 3rd safety valve (18) is set on the said fluid reservoir (1).
6. according to claim 1 or 2 or 3 described gas pressure test devices; It is characterized in that described return line (5) upward is provided with second atmospheric valve (16) and second safety valve (17) between the reverse flow valve and the pump housing; Second atmospheric valve (16) is near the pump housing (2), and second safety valve (17) is near reverse flow valve (9).
7. gas pressure test device according to claim 5; It is characterized in that described return line (5) upward is provided with second atmospheric valve (16) and second safety valve (17) between the reverse flow valve and the pump housing; Second atmospheric valve (16) is near the pump housing (2), and second safety valve (17) is near reverse flow valve (9).
8. gas pressure test device according to claim 7; It is characterized in that being provided with on the said fluid reservoir (1) in first tensimeter (19), vaporization pipeline (7) second tensimeter (20) is set, this second tensimeter (20) is arranged between the 4th safety valve (23) and the pressure switch (11).
9. gas pressure test device according to claim 8 is characterized in that being provided with respectively around property adapter (22) on described suction line (4) and the return line (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120193602U CN202149833U (en) | 2011-06-10 | 2011-06-10 | Air pressure tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120193602U CN202149833U (en) | 2011-06-10 | 2011-06-10 | Air pressure tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202149833U true CN202149833U (en) | 2012-02-22 |
Family
ID=45590888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120193602U Expired - Lifetime CN202149833U (en) | 2011-06-10 | 2011-06-10 | Air pressure tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202149833U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806505A (en) * | 2015-04-20 | 2015-07-29 | 中国石油化工股份有限公司 | Method for testing low-temperature and high-pressure plunger pump |
| CN108916647A (en) * | 2018-06-25 | 2018-11-30 | 杭州新亚低温科技有限公司 | A kind of cryogenic liquid is converted into the carburetion system of high pressure gas |
| CN110411843A (en) * | 2019-08-02 | 2019-11-05 | 合肥通用机械研究院有限公司 | A kind of pressure vessel or pipe test by air-pressurizing system and test method |
| CN112763160A (en) * | 2020-12-18 | 2021-05-07 | 湖南省特种设备检验检测研究院 | Low-temperature tank car air tightness test device and method |
-
2011
- 2011-06-10 CN CN201120193602U patent/CN202149833U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806505A (en) * | 2015-04-20 | 2015-07-29 | 中国石油化工股份有限公司 | Method for testing low-temperature and high-pressure plunger pump |
| CN108916647A (en) * | 2018-06-25 | 2018-11-30 | 杭州新亚低温科技有限公司 | A kind of cryogenic liquid is converted into the carburetion system of high pressure gas |
| CN110411843A (en) * | 2019-08-02 | 2019-11-05 | 合肥通用机械研究院有限公司 | A kind of pressure vessel or pipe test by air-pressurizing system and test method |
| CN110411843B (en) * | 2019-08-02 | 2022-07-15 | 合肥通用机械研究院有限公司 | Pressure container or pipeline air pressure test system and test method |
| CN112763160A (en) * | 2020-12-18 | 2021-05-07 | 湖南省特种设备检验检测研究院 | Low-temperature tank car air tightness test device and method |
| CN112763160B (en) * | 2020-12-18 | 2021-10-08 | 湖南省特种设备检验检测研究院 | Low-temperature tank car air tightness test device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120222 |
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| CX01 | Expiry of patent term |