CN102445299A - Closed fluid-resistance comprehensive tester for oil gas recovery system of gas station - Google Patents
Closed fluid-resistance comprehensive tester for oil gas recovery system of gas station Download PDFInfo
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- CN102445299A CN102445299A CN2011102539342A CN201110253934A CN102445299A CN 102445299 A CN102445299 A CN 102445299A CN 2011102539342 A CN2011102539342 A CN 2011102539342A CN 201110253934 A CN201110253934 A CN 201110253934A CN 102445299 A CN102445299 A CN 102445299A
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Abstract
The invention relates to a closed fluid-resistance comprehensive tester for an oil gas recovery system of a gas station, which can be used for simultaneously testing positive and negative pressure states and tightness of the oil gas recovery system and fluid resistance of an underground oil gas pipeline. The comprehensive tester comprises a nitrogen inlet quick connector, a pressure-limiting regulating valve, a flow regulating valve, a floater flowmeter, a pressure buffer cavity and a nitrogen outlet quick connector, which are sequentially connected through pipelines, wherin the pressure-limiting regulating valve is connected with a pressure-limiting pressure meter, a system pressure meter, a closed pressure meter and a fluid-resistance pressure meter are connected in parallel and then are connected with the pressure buffer cavity, and the parallely-connected pipelines are also connected with a pressure releasing valve. The comprehensive tester can be used for measuring the negative pressure of the system, potential safety hazards such as a dented oil tank of the gas station and the like are avoided, oil gas is prevented from being discharged to the atomosphere to cause environmental pollution, and the normal working of the oil gas recovery system is really ensured; moreover, a portable purely-mechanical instrument structure is adopted in the comprehensive tester, electrical explosion protection measures are not required to be adopted, and the comprehensive tester is particularly suitable for danger areas of the gas station.
Description
Technical field
The present invention relates to the sealing fluid resistance comprehensive tester of a kind of refuelling station gas recovery system for oil performance; Particularly relate to the comprehensive tester of system pressure state, system's leakproofness and the resistance of underground oil and gas pipeline liquid of a kind of refuelling station gas recovery system for oil, belong to exhaust of oil and administer monitoring technical field.
Background technology
Along with the fast development of China's economy and communications and transportation, the environmental protection of refuelling station and safety problem more and more cause the concern of government and society.In order to reduce of the pollution of discharging oil gas in refuelling station's, need in the refuelling station, install gas recovery system for oil additional to atmospheric environment.
The ultimate principle of refuelling station's gas recovery system for oil is to make unloading system, buried tank, fuel loading system and oil gas reclaimer form airtight loop; In emptying or oiling; Reclaim loss and be emitted on airborne oil gas, thus reduce the refuelling station in emptying and refueling process gasoline oil gas to the discharging of environment.
When gas recovery system for oil work undesired; If it is not enough to reclaim gas when system refuels outward; To make the inner negative pressure that forms of airtight loop, and cause potential safety hazards such as the flat jar of storage tank, it is too much perhaps to reclaim gas; Cause system overpressure, superpressure oil gas is washed the gas outlet pressure limiting valve open and is discharged into atmosphere formation environmental pollution.
Therefore, when gas recovery system for oil is safeguarded, need the positive/negative pressure state in the airtight gas recovery system for oil be detected.In addition; For making gas recovery system for oil operate as normal and oil gas can be recovered to gasoline tank smoothly; Also must detect the liquid resistance of the leakproofness and the underground oil and gas pipeline of whole gas recovery system for oil; Guarantee that whole airtight loop reaches the airtight requirement of regulation, the liquid resistance that guarantees the underground oil and gas recovery channel is less than prescribed limits.
Yet; Also there is not to detect simultaneously the above-mentioned performance detection equipment of gas recovery system for oil at present; Therefore; Safeguard the actual needs of testing according to refuelling station's gas recovery system for oil, very be necessary to develop the comprehensive tester that System Testing Pressure state, leakproofness and liquid hinder that integrates of a kind of refuelling station gas recovery system for oil, be used to test positive negative pressure state, system's leakproofness and the resistance of underground oil and gas pipeline liquid of gas recovery system for oil; Adopt this instrument to carry out refuelling station's gas recovery system for oil and safeguard detection, can guarantee refuelling station's gas recovery system for oil operate as normal really.
Summary of the invention
The present invention provides a kind of comprehensive tester that is used for testing simultaneously positive negative pressure state, leakproofness and the resistance of underground oil and gas pipeline liquid of refuelling station's gas recovery system for oil
Technical matters to be solved by this invention is, through this tester is inserted the branch pipe tee connection interface that the fuel charger chassis is reserved in the gas recovery system for oil, is directly measured the positive/negative pressure state of gas recovery system for oil then by the system pressure table of this instrument.
Technical matters to be solved by this invention also is; Nitrogen stops gas transmission after reaching authorised pressure through the underground gasoline tank of this tester control input gas recovery system for oil; Pass through the airtight residue static pressure value of the leakproofness gauge measurement gas recovery system for oil of this tester in the section at the appointed time then, thereby detect the gas recovery system for oil airtight performance.
Technical matters to be solved by this invention also is; Nitrogen is imported the underground oil and gas pipeline through this tester by the regulation flow control, thereby detects the resistive ability of liquid of underground oil and gas pipeline through the dynamic pressure of this tester liquid resistance gauge measurement underground oil and gas pipeline simultaneously.
In order to solve the problems of the technologies described above; The present invention provides the sealing fluid resistance comprehensive tester of a kind of refuelling station gas recovery system for oil; Can be used for testing simultaneously the liquid resistance of positive negative pressure state, leakproofness and the underground oil and gas pipeline of gas recovery system for oil; Said comprehensive tester comprises nitrogen inlet rapid-acting coupling, pressure limiting variable valve, flow control valve, suspended body flowmeter, pressure buffer chamber and the nitrogen outlet rapid-acting coupling that connects successively through pipeline; The pressure limiting variable valve connects the pressure limiting tensimeter, connects the pressure buffer chamber after system pressure table, seal-off pressure table, the parallel connection of liquid resistance tensimeter, and the pipeline after the parallel connection also connects blowdown valve.
When carrying out the test of the positive negative pressure state of gas recovery system for oil, close flow control valve, the nitrogen outlet rapid-acting coupling of said comprehensive tester is connected to the detection interface that gas recovery system for oil is reserved, the system pressure table shows the positive/negative pressure value of gas recovery system for oil.
Carry out gas recovery system for oil leakproofness when test, nitrogen feeds gas recovery system for oil through said comprehensive tester, stops the nitrogen input after being forced into setting, and the seal-off pressure table shows the static surplus pressure value after the stipulated time.
When carrying out gas recovery system for oil underground oil and gas pipeline liquid resistance test, regulate the flow control valve of said comprehensive tester, in the pipeline of gas recovery system for oil, charge into nitrogen with predetermined amount of flow, liquid resistance tensimeter shows the dynamic liquid Resistance Value of nitrogen through pipeline.
The invention has the beneficial effects as follows; System pressure state, system's airtight performance that can integration test refuelling station gas recovery system for oil and systematically descend the resistive ability of liquid of oil and gas pipes can the test macro negative pressure, avoids potential safety hazards such as the flat jar of refuelling station's oil tank; Prevent that oil gas is discharged into atmosphere and forms environmental pollution; Really guarantee the gas recovery system for oil operate as normal, and the present invention adopts portable pure machinery instrument structure; Need not to take the electrical explosion proof measure, use the hazardous location that is particularly suitable for the refuelling station.
Description of drawings
Fig. 1 is: the agent structure synoptic diagram of gas recovery system for oil comprehensive tester;
Fig. 2 is: the panel structure chart of gas recovery system for oil comprehensive tester.
Embodiment
Sealing fluid resistance comprehensive tester of the present invention; Can be used for testing simultaneously the liquid resistance of positive negative pressure state, leakproofness and the underground oil and gas pipeline of gas recovery system for oil; Its inner structure is made up of system pressure table 1, liquid resistance tensimeter 3, seal-off pressure table 2, nitrogen inlet rapid-acting coupling 8, pressure limiting variable valve 10, pressure limiting tensimeter 9, suspended body flowmeter 5, pressure buffer chamber 6, blowdown valve 7 and parts such as nitrogen outlet rapid-acting coupling 11 and internal duct, and the gas flow of said tester is shown in the arrow among Fig. 1.
The system pressure table 1 of this tester, seal-off pressure table 2, liquid resistance tensimeter 3 are parallel-connected on the pressure buffer chamber 6 of tester, when tester with can on these three tensimeters, directly read data to be tested respectively after gas recovery system for oil is connected.
When this tester carries out the test of the positive negative pressure state of gas recovery system for oil; Close the flow control valve 4 of suspended body flowmeter 5; And connect the detection interface that the nitrogen outlet rapid-acting coupling 11 of tester is reserved to gas recovery system for oil with the supporting pressure hose of tester, just can read the positive/negative pressure value of gas recovery system for oil according to the indication of the system pressure table 1 of tester.
When this tester carries out leakproofness test or underground oil and gas pipeline liquid resistance test; The nitrogen of external nitrogen steel cylinder inserts the tester nitrogen inlet through steel cylinder reduction valve, the supporting pressure-resistant rubber flexible pipe of tester; Regulate the pressure limiting variable valve 10 of tester, can protect the high-accuracy minute-pressure tensimeter (liquid resistance, airtight and system pressure table) of nitrogen excess pressure impact test instrument.Nitrogen is finely tuned nitrogen flows through the flow control valve 4 of suspended body flowmeter 5 after regulating pressure through pressure limiting variable valve 10 again, passes through pressure buffer chamber 6 again, connects the supporting pressure hose of tester by nitrogen outlet and gets into the detection interface that gas recovery system for oil is reserved.
Nitrogen feeds gas recovery system for oil through said comprehensive tester, stops the nitrogen input after being forced into setting, and seal-off pressure table 2 shows that static surplus pressure value after the stipulated time is to detect the leakproofness of gas recovery system for oil.
Nitrogen is regulated through flow control valve 4, feeds with predetermined amount of flow in the pipeline of gas recovery system for oil, and liquid resistance tensimeter 3 shows the dynamic liquid Resistance Value of nitrogen through pipeline.
Claims (5)
1. the sealing fluid of refuelling station's gas recovery system for oil hinders comprehensive tester; Can be used for testing simultaneously the liquid resistance of positive negative pressure state, leakproofness and the underground oil and gas pipeline of gas recovery system for oil; It is characterized in that; Said comprehensive tester comprises nitrogen inlet rapid-acting coupling (8), pressure limiting variable valve (10), flow control valve (4), suspended body flowmeter (5), pressure buffer chamber (6) and the nitrogen outlet rapid-acting coupling (11) that connects successively through pipeline; Pressure limiting variable valve (10) connects pressure limiting tensimeter (9), and system pressure table (1), seal-off pressure table (2), liquid resistance tensimeter (3) parallel connection back connect pressure buffer chamber (6), and the pipeline after the parallel connection also connects blowdown valve (7).
2. sealing fluid resistance comprehensive tester as claimed in claim 1; It is characterized in that; When carrying out the test of the positive negative pressure state of gas recovery system for oil; Close flow control valve (4), the nitrogen outlet rapid-acting coupling (11) of said comprehensive tester is connected to the detection interface that gas recovery system for oil is reserved, system pressure table (1) shows the positive/negative pressure value of gas recovery system for oil.
3. sealing fluid resistance comprehensive tester as claimed in claim 1; It is characterized in that; When carrying out the test of gas recovery system for oil leakproofness; Nitrogen feeds gas recovery system for oil through said comprehensive tester, stops the nitrogen input after being forced into setting, and seal-off pressure table (2) shows the static surplus pressure value after the stipulated time.
4. sealing fluid resistance comprehensive tester as claimed in claim 1; It is characterized in that; When carrying out gas recovery system for oil underground oil and gas pipeline liquid resistance test; Regulate the flow control valve (4) of said comprehensive tester, in the pipeline of gas recovery system for oil, charge into nitrogen with predetermined amount of flow, liquid resistance tensimeter (3) shows the dynamic liquid Resistance Value of nitrogen through pipeline.
5. like claim 3 or 4 described sealing fluid resistance comprehensive testers; It is characterized in that; The nitrogen reduction valve feeds the nitrogen inlet of said comprehensive tester, regulates through pressure limiting variable valve (10), passes through flow control valve (4) fine setting of suspended body flowmeter (5) again; Pass through pressure buffer chamber (6) at last, get into the detection interface of gas recovery system for oil by nitrogen outlet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102539342A CN102445299A (en) | 2011-08-30 | 2011-08-30 | Closed fluid-resistance comprehensive tester for oil gas recovery system of gas station |
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| CN2011102539342A CN102445299A (en) | 2011-08-30 | 2011-08-30 | Closed fluid-resistance comprehensive tester for oil gas recovery system of gas station |
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| CN102445299A true CN102445299A (en) | 2012-05-09 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344427A (en) * | 2013-07-17 | 2013-10-09 | 武汉亚普汽车塑料件有限公司 | Automobile fuel tank fuel filler pipe ventilation performance testing device |
| CN104792481A (en) * | 2015-03-31 | 2015-07-22 | 广州特种承压设备检测研究院 | Device and method for detecting leakproofness of oil gas recycling systems of oil tank trucks |
| CN105084288A (en) * | 2015-08-13 | 2015-11-25 | 中国石油化工股份有限公司 | Automatic monitoring method for oil vapor recovery leakproofness of gas station |
| CN105110283A (en) * | 2015-08-13 | 2015-12-02 | 中国石油化工股份有限公司 | Method for automatically monitoring fuel oil and gas recycling liquid resistance of refueling station |
| CN105910960A (en) * | 2016-06-24 | 2016-08-31 | 安徽创新检测技术有限公司 | Oil and gas recovery liquid resistance detection method |
| CN107806915A (en) * | 2016-09-09 | 2018-03-16 | 株式会社大福 | Flow rate-measuring device and flow measuring systems |
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| CN201532293U (en) * | 2009-10-22 | 2010-07-21 | 中国石油化工股份有限公司 | Tightness detector |
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| FR2629913A1 (en) * | 1988-04-06 | 1989-10-13 | Europ Agence Spatiale | Method and system for evaluating the residual quantity of fuel in a spacecraft tank |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344427A (en) * | 2013-07-17 | 2013-10-09 | 武汉亚普汽车塑料件有限公司 | Automobile fuel tank fuel filler pipe ventilation performance testing device |
| CN104792481A (en) * | 2015-03-31 | 2015-07-22 | 广州特种承压设备检测研究院 | Device and method for detecting leakproofness of oil gas recycling systems of oil tank trucks |
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| CN105110283A (en) * | 2015-08-13 | 2015-12-02 | 中国石油化工股份有限公司 | Method for automatically monitoring fuel oil and gas recycling liquid resistance of refueling station |
| CN105084288B (en) * | 2015-08-13 | 2017-08-29 | 中国石油化工股份有限公司青岛安全工程研究院 | Gas station oil gas reclaims seal automatic monitoring method |
| CN105910960A (en) * | 2016-06-24 | 2016-08-31 | 安徽创新检测技术有限公司 | Oil and gas recovery liquid resistance detection method |
| CN107806915A (en) * | 2016-09-09 | 2018-03-16 | 株式会社大福 | Flow rate-measuring device and flow measuring systems |
| CN107806915B (en) * | 2016-09-09 | 2021-01-26 | 株式会社大福 | Flow rate measuring device and flow rate measuring system |
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Application publication date: 20120509 |