CN204535931U - The two-compartment oil tank pick-up unit of liquid sensor leak detection system - Google Patents
The two-compartment oil tank pick-up unit of liquid sensor leak detection system Download PDFInfo
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- CN204535931U CN204535931U CN201520236832.3U CN201520236832U CN204535931U CN 204535931 U CN204535931 U CN 204535931U CN 201520236832 U CN201520236832 U CN 201520236832U CN 204535931 U CN204535931 U CN 204535931U
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Abstract
The utility model relates to a kind of pick-up unit of two-compartment oil tank liquid sensor leak detection system, mainly to solve in prior art needleless to the problem of the pick-up unit of liquid sensor leak detection system.The utility model is by adopting a kind of pick-up unit of two-compartment oil tank liquid sensor leak detection system, store oil sump (1) to be connected with oil well pump (3) entrance by pipeline (2), through flow control valve I (4) after oil well pump (3) outlet first, switch valve I is divided into two-way after (5), one tunnel is connected with flowmeter (6) entrance, through switch valve II (10) after one road is first, return after flow control valve II (11) and store oil sump (1), flowmeter (6) outlet is connected with test funnel (7) bottom, conical section top in described test funnel (7) is provided with orifice plate (9), the technical scheme that orifice plate (9) top is provided with liquid sensor (8) solves the problems referred to above preferably, can be used in the detection of two-compartment oil tank liquid sensor leak detection system.
Description
Technical field
The utility model relates to a kind of pick-up unit of two-compartment oil tank liquid sensor leak detection system.
Background technology
Two-compartment oil tank is current domestic emerging a kind of refuelling station sunken tankers, and its skin adopts glass-reinforced plastic material usually, and internal layer difference according to demand adopts steel (SF two-compartment oil tank) or fiberglass (FF two-compartment oil tank).Two-compartment oil tank effectively can prevent seepage, is therefore commercially widely used.
There is certain mezzanine space between the inside and outside layer of two-compartment oil tank, can find to the Real-Time Monitoring of mezzanine space the seepage that the inside and outside layer of two-compartment oil tank produces timely.The mode of leaking hunting of current two-compartment oil tank mainly contains three kinds: pressure/vacuum method, liquid matchmaker method, sensor method.Pressure/vacuum method cost that leaks hunting is higher, easy false alarm, and use amount is less; Liquid matchmaker method is leaked hunting and is easily produced corrosion to SF inner canister, is mainly used in FF two-compartment oil tank at present; Sensor method leaks hunting and is divided into liquid sensor and vapor sensor two kinds, mainly uses liquid sensor in the market.Sensor method, due to cheap, easy to use, is therefore that two-compartment oil tank main at present leaks hunting mode.
Liquid sensor leak detection system is widely used in two-compartment oil tank field, but the test for leak detection system does not but have the experimental provision of complete set, the two-compartment oil tank liquid sensor method of testing that only can propose with reference to GB30040.4-2013 " double-layer tank seepage detection system---be applied to liquid or the vapor sensor system of antiseep facility or Double-layer gap ", therefore this patent proposes a kind of a kind of pick-up unit for liquid sensor leak detection system.
Utility model content
Technical problem to be solved in the utility model is that in prior art, needleless, to the problem of the pick-up unit of liquid sensor leak detection system, provides a kind of pick-up unit of new two-compartment oil tank liquid sensor leak detection system.This device is used in the detection of two-compartment oil tank with liquid sensor leak detection system, have can carry out liquid sensor leak detection system detection, simple, easy to operate, the lower-cost advantage of structure.
For solving the problem, the technical solution adopted in the utility model is as follows: a kind of pick-up unit of two-compartment oil tank liquid sensor leak detection system, it is characterized in that storing oil sump (1) is connected with oil well pump (3) entrance by pipeline (2), through flow control valve I (4) after oil well pump (3) outlet first, switch valve I is divided into two-way after (5), one tunnel is connected with flowmeter (6) entrance, through switch valve II (10) after one road is first, return after flow control valve II (11) and store oil sump (1), flowmeter (6) outlet is connected with test funnel (7) bottom, conical section top in described test funnel (7) is provided with orifice plate (9), orifice plate (9) top is provided with liquid sensor (8).
Device described in this patent can complete the testing of two-compartment oil tank liquid sensor leak detection system, has the advantages such as structure is simple, easy to operate, cost is lower, can be good at the requirement meeting GB30040-2013 " two-compartment oil tank seepage detection system ".The structure of the detecting device that this patent relates to is simple, and easy to operate, cost is lower, and well can complete the testing of liquid sensor leak detection system, achieves good technique effect.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of device described in the utility model.
1-stores oil sump; 2-pipeline; 3-oil well pump; 4-flow control valve I; 5-switch valve I; 6-flowmeter; 7-tests funnel; 8-liquid sensor; 9-orifice plate; 10-switch valve II; 11-flow control valve II.
Below by embodiment, the utility model is further elaborated, but is not limited only to the present embodiment.
Embodiment
[embodiment 1]
This patent relates to a kind of pick-up unit of two-compartment oil tank liquid sensor leak detection system, as shown in Figure 1.Store oil sump (1) to be connected with oil well pump (3) entrance by pipeline (2), through flow control valve I (4) after oil well pump (3) outlet first, switch valve I is divided into two-way after (5), one tunnel is connected with flowmeter (6) entrance, through switch valve II (10) after one road is first, return after flow control valve II (11) and store oil sump (1), flowmeter (6) outlet is connected with test funnel (7) bottom, conical section top in described test funnel (7) is provided with orifice plate (9), orifice plate (9) top is provided with liquid sensor (8)
According to GB GB30040, adopt sectional area 0.1m
2cylindrical shape proving installation, liquid feeding speed is respectively 10L/h and 50L/h, and drain age velocity is 300L/h, and testing sensor is in the reaction time of given ascending velocity lower sensor indicating liquid and release time of sensing system when removing liquid.
1, first test fluid is installed additional storing in oil sump (1).
2, open switch valve I (5), closing switch valve II (10), regulate flow control valve I (4), make to add flow velocity and reach 10L/h, 50L/h.
3, closing switch valve I (5), opens switch valve II (10), regulates flow control valve II (11), makes eliminating flow velocity reach 300L/h.
4, flush with orifice plate (9) to liquid feeding in test funnel (7) to liquid level.
5, liquid sensor (8) is placed in test funnel (7), sensor not engaged test liquid.
6, open switch valve I (5), closing switch valve II (10), open oil well pump (3), with given flow velocity to liquid feeding in test funnel (7), the time of fire alarming of test liquid sensor.
7, close oil well pump (3), closing switch valve I (5), opens switch valve II (10), with the speed discharge opeing of 300L/h, and the release time of test liquid sensor.
Claims (1)
1. the two-compartment oil tank pick-up unit of liquid sensor leak detection system, it is characterized in that storing oil sump (1) is connected with oil well pump (3) entrance by pipeline (2), through flow control valve I (4) after oil well pump (3) outlet first, switch valve I is divided into two-way after (5), one tunnel is connected with flowmeter (6) entrance, through switch valve II (10) after one road is first, return after flow control valve II (11) and store oil sump (1), flowmeter (6) outlet is connected with test funnel (7) bottom, conical section top in described test funnel (7) is provided with orifice plate (9), orifice plate (9) top is provided with liquid sensor (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520236832.3U CN204535931U (en) | 2015-04-20 | 2015-04-20 | The two-compartment oil tank pick-up unit of liquid sensor leak detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520236832.3U CN204535931U (en) | 2015-04-20 | 2015-04-20 | The two-compartment oil tank pick-up unit of liquid sensor leak detection system |
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| CN204535931U true CN204535931U (en) | 2015-08-05 |
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| CN201520236832.3U Active CN204535931U (en) | 2015-04-20 | 2015-04-20 | The two-compartment oil tank pick-up unit of liquid sensor leak detection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109883616A (en) * | 2019-03-28 | 2019-06-14 | 中国石油化工股份有限公司 | A kind of shield grease special measuring of resistance to water tightness instrument and test method |
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2015
- 2015-04-20 CN CN201520236832.3U patent/CN204535931U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109883616A (en) * | 2019-03-28 | 2019-06-14 | 中国石油化工股份有限公司 | A kind of shield grease special measuring of resistance to water tightness instrument and test method |
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