CN104847671B - Low temperature immersed pump method of testing - Google Patents
Low temperature immersed pump method of testing Download PDFInfo
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- CN104847671B CN104847671B CN201510185700.7A CN201510185700A CN104847671B CN 104847671 B CN104847671 B CN 104847671B CN 201510185700 A CN201510185700 A CN 201510185700A CN 104847671 B CN104847671 B CN 104847671B
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- Prior art keywords
- pump
- test
- low temperature
- measured
- temperature immersed
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0088—Testing machines
Abstract
The present invention relates to a kind of low temperature immersed pump method of testing, the problem mainly solving to there is no low temperature immersed pump integrated testability technology in prior art.The present invention is by using a kind of low temperature immersed pump method of testing, in low temperature immersed pump test device, test fluid in storage tank (1) is extracted out feeding test pump pond (12) by pump to be measured (11), then the technical scheme making test fluid circulate in closed loop pipeline under the effect of pump to be measured (11) preferably solves the problems referred to above, can be used in the test of low temperature immersed pump.
Description
Technical field
The present invention relates to a kind of low temperature immersed pump method of testing.
Background technology
Along with development and the raising of living standards of the people of national economy, environmental conservation increasingly comes into one's own, as cleaning energy
The natural gas in one of source is widely used to motor vehicle fuel.Wherein liquefied petroleum gas LNG is not because of by urban pipe network and source of the gas
Impact, development in recent years is the rapidest.
CN201310281933.8 discloses a kind of plunger displacement pump characteristic test system and method for testing, it is characterized in that arranging test
System is: arrange torque rotary speed tester on the output shaft driving motor, for detecting input torque and the angle speed of plunger displacement pump
Degree；Being provided with two-way plug-in valve in the export pipeline of plunger displacement pump, the oil-in of two-way plug-in valve connects with the port of export of plunger displacement pump
Adapter arranges pressure transducer on road, and for detecting the output pressure of plunger displacement pump, the oil-out at two-way plug-in valve arranges flow
Sensor, for detecting the output flow of plunger displacement pump；Controlling between mouth and the oil-in of two-way plug-in valve at two-way plug-in valve
Connecting line in be provided with restriction；It is arranged in parallel between control mouth and the oil-in of flow transducer of two-way plug-in valve
There are guide proportion overflow valve and normally closed type bi-bit bi-pass solenoid directional control valve；Guide proportion overflow valve is for setting the defeated of test system
Go out pressure.
Low temperature immersed contrifugal pump (abbreviation immersed pump) is originated as the major impetus of LNG liquid addition, is LNG gas station
Key equipment, the aspect such as its safety, stability, energy consumption has important impact to gas station.Current domestic gas station
The basic dependence on import of low temperature immersed pump, price is high, and after-sale service is poor.Also two or three enterprise is had to have begun to although domestic
The research and development of LNG immersed pump, have even defines preliminary product, but owing to cannot ensure its quality, applies considerably less.
Tracing it to its cause is domestic not have perfect LNG immersed pump Testing Platform and method, therefore cannot evaluate its performance indications,
Thus constrain its technology upgrading.Although part producer to testing equipment, but more can be biased in critical component
Detection, seldom carry out the test of complete machine, the test under the conditions of meeting field working conditions especially almost without.
The present invention solves this problem targetedly.
Summary of the invention
The technical problem to be solved is the problem that there is no low temperature immersed pump integrated testability technology in prior art, it is provided that
A kind of new low temperature immersed pump method of testing.The method, in low temperature immersed pump is tested, has that method of testing is simple, test
The advantage of reliable results.
For solving the problems referred to above, the technical solution used in the present invention is as follows: a kind of low temperature immersed pump method of testing, dives at low temperature
In liquid pump test device, extract test fluid in storage tank (1) out feeding test pump pond (12) by pump to be measured (11), so
After make test fluid circulate in closed loop pipeline under the effect of pump to be measured (11)；In described low temperature immersed pump test device
Pump to be measured (11) be positioned at test pump pond (12), pump to be measured (11) suction line is connected with storage tank (1), to be measured
Pump (10) outlet is positioned at test pump pond (12), and test pump pond (12) outlet line is divided at least two-way, a road and storage
The suction line of tank (1) be connected, a road successively through pressure transducer (9), relief valve group (8), effusion meter (6),
Check valve (5) returns test pump pond (12) afterwards；Control system carries out frequency conversion by integrating control cabinet, tests pump to be measured (11)
In the various performance parameters of different frequency point, after being completed, test fluid is returned storage tank (1) by pump to be measured (11).
In technique scheme, it is preferable that described storage tank (1) is provided with at least one outlet line and at least one inlet tube
Line.
In technique scheme, it is preferable that described test pump pond (12) is provided with blow-down pipe.
In technique scheme, it is preferable that described test pump pond (12) is provided with liquidometer (10).
In technique scheme, it is preferable that described pump to be measured (11) suction line is provided with valve.
In technique scheme, it is preferable that the pipeline between described relief valve group (8) and effusion meter (6) is provided with valve.
In technique scheme, it is preferable that the suction line phase of described test pump pond (12) outlet line and storage tank (1)
Pipeline even is provided with valve.
In technique scheme, it is preferable that described pump to be measured (11) suction line, test pump pond (12) outlet line,
The pipeline that test pump pond (12) outlet line is connected with the suction line of storage tank (1) is all with insulation.
The basic functional principle of this patent is to extract test fluid in storage tank out feeding test pump pond by immersed pump, then makes test
Liquid circulates under the effect of immersed pump in closed loop pipeline.Control system can carry out frequency conversion by integrating control cabinet, then
Collection immersed pump, in the various performance parameters of different frequency point, mainly comprises mass flow, electric current, voltage, pressure (table
Pressure) etc. and be recorded as table, thus accomplish immersed pump flow, lift, aggregate efficiency isoparametric test assessment.It is completed
After, test fluid is drawn back storage tank by bypass by immersed pump.
This patent proposes a kind of test device mainly for performance test and the assessment of low temperature immersed pump, according to immersed pump
It is supporting that actual operating mode has carried out relevant device, therefore can evaluate and test out in immersed pump actual moving process to greatest extent
Performance.Be equipped with integrating control cabinet and test software accordingly, can carry out efficiently data transmission, process, store with
And report operations such as showing.Additionally crucial pipeline possesses the interface of plurality of specifications and opening, can simulate different operating mode dive
Liquid pump performance.This test device possesses the corollary equipment meeting field working conditions, more can effectively reflect the verity of immersed pump
Energy feature, additionally equipment uses open by design, simple in construction, safe and reliable, automaticity is higher, achieves preferably
Technique effect.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of device of the present invention.
1 is storage tank；2,3,7,13 is valve；4 is evacuated tube；5 is check valve；6 is effusion meter；8 is relief valve group；
9 is pressure transducer；10 is liquidometer；11 is tested pump；12 is test pump pond.
Below by embodiment, the invention will be further elaborated, but is not limited only to the present embodiment.
Detailed description of the invention
[embodiment 1]
The present invention provides a kind of low temperature immersed pump method of testing, as it is shown in figure 1, in low temperature immersed pump test device, pass through
Test fluid in storage tank (1) is extracted out and is sent into test pump pond (12) by pump to be measured (11), then makes test fluid in pump to be measured (11)
Effect under circulate in closed loop pipeline；Pump to be measured (11) in described low temperature immersed pump test device is positioned at test pump
In pond (12), pump to be measured (11) suction line is connected with storage tank (1), and pump to be measured (10) outlet is positioned at test pump pond
(12), in, test pump pond (12) outlet line is divided at least two-way, a road to be connected with the suction line of storage tank (1),
One tunnel returns test pump successively after pressure transducer (9), relief valve group (8), effusion meter (6), check valve (5)
Pond (12).
Described storage tank (1) is provided with at least one outlet line and at least one suction line.On described test pump pond (12)
It is provided with blow-down pipe.Described test pump pond (12) is provided with liquidometer (10).On described pump to be measured (11) suction line
It is provided with valve.Pipeline between described relief valve group (8) and effusion meter (6) is provided with valve.Described test pump pond (12)
The pipeline that outlet line is connected with the suction line of storage tank (1) is provided with valve.Described low temperature immersed pump method of testing is also wrapped
Including control system, control system can carry out frequency conversion by integrating control cabinet, tests the pump to be measured every property at different frequency point
Can parameter.
It addition, test system further provided with interface and the interface of high-speed traffic mode of quick connected mode, connecting line is main
Comprise immersed pump test system and the tank connected thermo-insulating pipe line of liquid storage, feed liquor thermo-insulating pipe line and return liquid thermo-insulating pipe line, emptying pipeline,
Relief valve group pipelines etc., it is defeated that control system mainly comprises integrating control cabinet (computer, converter etc.), test software and data
Go out system.When immersed pump is tested, whole test system is carried out testing and control, the stability of observed data, gather number
According to, calculate data, printing reports etc..
Detailed description of the invention:
The feed liquor stage: tested immersed pump (11) is installed and pre-cooling, Open valve (13), utilize immersed pump (11)
Test fluid suction in storage tank (1) is tested in pump pond (12), high by the liquid level needed for liquidometer (10) display test
Degree, when satisfied test liquid level, closes valve (13).
Test phase: Open valve (7) and valve (3), closes valve (2), starts immersed pump (11), passes through
Test fluid in test pump pond (12) is extracted out by immersed pump (11), through liquid back pipe road sequentially pass through pressure transducer (9),
Relief valve group (8), valve (7), effusion meter (6), check valve (5) and valve (3), return to test pump pond,
Test fluid is made to circulate according to this, after pressure stabilisation, carry out data acquisition record, received by integrating control cabinet and test software
The parameters of immersed pump under collection different frequency, and form final test data report.
Blowdown period: need after being completed to draw back test fluid in storage tank (1), Open valve (7) and valve (2),
Close valve (3), the liquid in test pump pond is drawn back storage tank (1).
Claims (6)
1. a low temperature immersed pump method of testing, in low temperature immersed pump test device, by pump to be measured (11) by storage tank (1)
Middle test fluid is extracted out and is sent into test pump pond (12), then makes test fluid under the effect of pump to be measured (11) in closed loop pipeline
Circulate；Pump to be measured (11) in described low temperature immersed pump test device is positioned at test pump pond (12), pump to be measured (11)
Suction line is connected with storage tank (1), and pump to be measured (10) outlet is positioned at test pump pond (12), test pump pond (12)
Outlet line is divided at least two-way, a road to be connected with the suction line of storage tank (1), a road successively through pressure transducer (9),
Relief valve group (8), effusion meter (6), check valve (5) return test pump pond (12) afterwards；Control system is by integrated
Switch board carries out frequency conversion, tests the pump to be measured (11) various performance parameters at different frequency point, after being completed, pump to be measured
(11) test fluid is returned storage tank (1)；Described pump to be measured (11) suction line, test pump pond (12) outlet line,
The pipeline that test pump pond (12) outlet line is connected with the suction line of storage tank (1) is all with insulation；Described test pump pond
(12) pipeline that outlet line is connected with the suction line of storage tank (1) is provided with valve.
Low temperature immersed pump method of testing the most according to claim 1, it is characterised in that described storage tank (1) is provided with at least one
Outlet line and at least one suction line.
Low temperature immersed pump method of testing the most according to claim 1, it is characterised in that described test pump pond (12) is provided with puts
Blank pipe line.
Low temperature immersed pump method of testing the most according to claim 1, it is characterised in that described test pump pond (12) is provided with liquid
Position meter (10).
Low temperature immersed pump method of testing the most according to claim 1, it is characterised in that on described pump to be measured (11) suction line
It is provided with valve.
Low temperature immersed pump method of testing the most according to claim 1, it is characterised in that described relief valve group (8) and effusion meter (6)
Between pipeline be provided with valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510185700.7A CN104847671B (en) | 2015-04-20 | 2015-04-20 | Low temperature immersed pump method of testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510185700.7A CN104847671B (en) | 2015-04-20 | 2015-04-20 | Low temperature immersed pump method of testing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104847671A CN104847671A (en) | 2015-08-19 |
| CN104847671B true CN104847671B (en) | 2016-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510185700.7A Active CN104847671B (en) | 2015-04-20 | 2015-04-20 | Low temperature immersed pump method of testing |
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| CN (1) | CN104847671B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864018B (en) * | 2016-04-05 | 2018-09-07 | 武汉船用机械有限责任公司 | A kind of ultra-low temperature testing device suitable for immersed pump |
| CN113137379B (en) * | 2021-04-06 | 2022-03-08 | 上海交通大学 | Small skid-mounted closed loop testing device for evaluating comprehensive performance of cryogenic pump |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5979082A (en) * | 1982-10-28 | 1984-05-08 | Osaka Gas Co Ltd | Operation test for lng pump |
| RU2140573C1 (en) * | 1997-05-13 | 1999-10-27 | Тюменский государственный нефтегазовый университет | Pump dynamic test stand |
| CN102635559B (en) * | 2012-04-10 | 2015-02-25 | 山东省农业机械科学研究所 | Closed pipeline device of pump test system |
| CN203023080U (en) * | 2012-11-29 | 2013-06-26 | 唐山开滦广汇设备制造有限公司 | Portable performance test device for submerged pump |
| CN103758744B (en) * | 2014-02-24 | 2016-04-13 | 大连深蓝泵业有限公司 | A kind of cryopump test stand |
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Effective date of registration: 20160823 Address after: Yanan City, Shandong province Qingdao City three road 266071 No. 218 Applicant after: Qingdao Safety Engineering Research Institute of Sinopec Co., Ltd. Applicant after: Sinopec Corp. Address before: 100728 Chaoyangmen street, Beijing, No. 22, No. Applicant before: Sinopec Corp. Applicant before: Qingdao Safety Engineering Research Institute of Sinopec Co., Ltd. |
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