CN104847671A - Low-temperature submersible pump testing method - Google Patents
Low-temperature submersible pump testing method Download PDFInfo
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- CN104847671A CN104847671A CN201510185700.7A CN201510185700A CN104847671A CN 104847671 A CN104847671 A CN 104847671A CN 201510185700 A CN201510185700 A CN 201510185700A CN 104847671 A CN104847671 A CN 104847671A
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- pump
- test
- low temperature
- measured
- storage tank
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention relates to a low-temperature submersible pump testing method and mainly solves the problem that no low-temperature integral submersible pump testing technology exists in the prior art. According to the low-temperature submersible pump testing method, in a low-temperature submersible pump testing device, a to-be-tested pump (11) pumps a liquid in a storage tank (1) and sends the liquid to a testing pump tank (12), and the test liquid flows circularly in a closed loop under the action of the to-be-tested pump (11). By the aid of the technical scheme, the problem can be well solved, and the method can be used in low-temperature submersible pump testing.
Description
Technical field
The present invention relates to a kind of low temperature immersed pump test method.
Background technique
Along with the development of national economy and the raising of living standards of the people, environmental protection more and more comes into one's own, and the rock gas as one of clean energy resource is widely used in automotive fuel.Wherein liquefied petroleum gas (LPG) LNG is not because being subject to the impact of urban pipe network and source of the gas, and development in recent years is particularly rapid.
CN201310281933.8 discloses a kind of plunger pump characteristic test system and test method, it is characterized in that arranging test system is: on the output shaft of drive motor, arrange torque rotary speed testing instrument, for detecting input torque and the angular velocity of plunger pump; Two-way plug-in valve is provided with in the export pipeline of plunger pump, the filler opening of two-way plug-in valve and the outlet end connecting pipeline of plunger pump arrange pressure transducer, for detecting the delivery pressure of plunger pump, flow transducer is set at the oil outlet of two-way plug-in valve, for detecting the output flow of plunger pump; Restriction is provided with in the connecting pipeline between the control mouth and the filler opening of two-way plug-in valve of two-way plug-in valve; Guide proportion relief valve and Normally closed type bi-bit bi-pass solenoid directional control valve has been arranged in parallel between the control mouth and the filler opening of flow transducer of two-way plug-in valve; Guide proportion relief valve is for setting the delivery pressure of test system.
Low temperature immersed contrifugal pump (abbreviation immersed pump) is originated as the major impetus of LNG liquid addition, and be the key equipment of LNG gas station, there is important impact the aspects such as its Security, stability, energy consumption on gas station.The basic dependence on import of low temperature immersed pump of current domestic gas station, price is high, and after sales service is poor.Also have two or three enterprise to start the research and development of LNG immersed pump although domestic, what have even defines preliminary product, owing to cannot ensure its quality, applies considerably less.Tracing it to its cause is domesticly do not have perfect LNG immersed pump Testing Platform and method, therefore cannot evaluate its performance index, thus constrain its technology upgrading.Although part producer to testing equipment, can be more the detection being partial to critical component, seldom carry out the test of complete machine, almost do not have especially meeting the test under field working conditions condition.
The present invention solves this problem targetedly.
Summary of the invention
Technical problem to be solved by this invention is the problem that there is no low temperature immersed pump integrated testability technology in prior art, provides a kind of new low temperature immersed pump test method.The method is used in the test of low temperature immersed pump, has that test method is simple, the advantage of reliable test result.
For solving the problem, the technical solution used in the present invention is as follows: a kind of low temperature immersed pump test method, in low temperature immersed pump testing apparatus, extract test fluid in storage tank (1) out feeding test pump pond (12) by pump to be measured (11), then make test fluid circulate in closed loop pipeline under the effect of pump to be measured (11); Pump to be measured (11) in described low temperature immersed pump testing apparatus is positioned at test pump pond (12), pump to be measured (11) suction line is connected with storage tank (1), 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, one tunnel is connected with the suction line of storage tank (1), and a road returns test pump pond (12) successively after pressure transducer (9), safety valve group (8), flowmeter (6), one-way valve (5); Control system carries out frequency conversion by integrating control cabinet, tests the various performance parameters of pump to be measured (11) at different frequency point, and after being completed, test fluid is returned storage tank (1) by pump to be measured (11).
In technique scheme, preferably, described storage tank (1) is provided with at least one outlet line and at least one suction line.
In technique scheme, preferably, described test pump pond (12) is provided with blow-down pipe.
In technique scheme, preferably, described test pump pond (12) is provided with level meter (10).
In technique scheme, preferably, described pump to be measured (11) suction line is provided with valve.
In technique scheme, preferably, the pipeline between described safety valve group (8) and flowmeter (6) is provided with valve.
In technique scheme, preferably, the pipeline that described test pump pond (12) outlet line is connected with the suction line of storage tank (1) is provided with valve.
In technique scheme, preferably, described pump to be measured (11) suction line, test pump pond (12) outlet line, the pipeline that is connected with the suction line of storage tank (1) of test pump pond (12) outlet line are all with insulation.
The basic functional principle of this patent extracts test fluid in storage tank out feeding test pump pond by immersed pump, then makes test fluid circulate in closed loop pipeline under the effect of immersed pump.Control system can carry out frequency conversion by integrating control cabinet, regather the various performance parameters of immersed pump at different frequency point, wherein mainly comprise mass flow rate, electric current, voltage, pressure (gauge pressure) etc. and be recorded as table, thus accomplishing immersed pump flow, lift, the isoparametric testing evaluation of total efficiency.After being completed, test fluid is drawn back storage tank by bypass by immersed pump.
This patent proposes a kind of testing apparatus mainly for the testing property of low temperature immersed pump and assessment, carry out relevant device according to the actual operating mode of immersed pump supporting, therefore can evaluate and test out the performance in immersed pump actual moving process to greatest extent.Be equipped with integrating control cabinet and corresponding testing software, the operation such as can carry out that the transmission of data, process, storage and report are shown efficiently.Crucial pipeline possesses plurality of specifications and the interface of opening in addition, can simulate the performance of immersed pump under different operating mode.This testing apparatus possesses the corollary equipment meeting field working conditions, more effectively can reflect the actual performance feature of immersed pump, and equipment adopts open by design in addition, structure is simple, safe and reliable, automaticity is higher, achieves good 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 emptying pipe; 5 is one-way valve; 6 is flowmeter; 8 is safety valve group; 9 is pressure transducer; 10 is level meter; 11 is tested pump; 12 is test pump pond.
Below by embodiment, the invention will be further elaborated, but be not limited only to the present embodiment.
Embodiment
[embodiment 1]
The invention provides a kind of low temperature immersed pump test method, as shown in Figure 1, in low temperature immersed pump testing apparatus, extract test fluid in storage tank (1) out feeding test pump pond (12) by pump to be measured (11), then make test fluid circulate in closed loop pipeline under the effect of pump to be measured (11); Pump to be measured (11) in described low temperature immersed pump testing apparatus is positioned at test pump pond (12), pump to be measured (11) suction line is connected with storage tank (1), 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, one tunnel is connected with the suction line of storage tank (1), and a road returns test pump pond (12) successively after pressure transducer (9), safety valve group (8), flowmeter (6), one-way valve (5).
Described storage tank (1) is provided with at least one outlet line and at least one suction line.Described test pump pond (12) is provided with blow-down pipe.Described test pump pond (12) is provided with level meter (10).Described pump to be measured (11) suction line is provided with valve.Pipeline between described safety valve group (8) and flowmeter (6) is provided with valve.The pipeline that described test pump pond (12) outlet line is connected with the suction line of storage tank (1) is provided with valve.Described low temperature immersed pump test method also comprises control system, and control system can carry out frequency conversion by integrating control cabinet, tests the various performance parameters of pump to be measured at different frequency point.
In addition, test system further provided with the interface of quick Placement and the interface of high-speed traffic mode, connecting pipeline mainly comprises immersed pump test system and the tank connected thermo-insulating pipe line of liquid storage, feed liquor thermo-insulating pipe line and returns liquid thermo-insulating pipe line, emptying pipeline, safety valve group pipeline etc., and control system mainly comprises integrating control cabinet (computer, frequency variator etc.), testing software and data output system.When testing for immersed pump, testing and control is carried out to whole test system, the stability of observed data, image data, calculate data, printing reports etc.
Embodiment:
The feed liquor stage: tested immersed pump (11) is installed and precooling, Open valve (13), utilize immersed pump (11) by test fluid suction test pump pond (12) in storage tank (1), the liquid level needed for test is shown by level meter (10), when satisfied test liquid level, throttle down (13).
Test phase: Open valve (7) and valve (3), throttle down (2), start immersed pump (11), the test fluid will tested in pump pond (12) by immersed pump (11) is extracted out, through liquid return pipe road successively through pressure transducer (9), safety valve group (8), valve (7), flowmeter (6), one-way valve (5) and valve (3), get back to test pump pond, test fluid is circulated according to this, after pressure stabilisation, carry out data capture and record, by the parameters of immersed pump under integrating control cabinet and testing software collection different frequency, and form final test data report.
Blowdown period: need test fluid to draw back after being completed in storage tank (1), Open valve (7) and valve (2), throttle down (3), draws back storage tank (1) by the liquid in test pump pond.
Claims (8)
1. a low temperature immersed pump test method, in low temperature immersed pump testing apparatus, extract test fluid in storage tank (1) out feeding test pump pond (12) by pump to be measured (11), then make test fluid circulate in closed loop pipeline under the effect of pump to be measured (11); Pump to be measured (11) in described low temperature immersed pump testing apparatus is positioned at test pump pond (12), pump to be measured (11) suction line is connected with storage tank (1), 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, one tunnel is connected with the suction line of storage tank (1), and a road returns test pump pond (12) successively after pressure transducer (9), safety valve group (8), flowmeter (6), one-way valve (5); Control system carries out frequency conversion by integrating control cabinet, tests the various performance parameters of pump to be measured (11) at different frequency point, and after being completed, test fluid is returned storage tank (1) by pump to be measured (11).
2. low temperature immersed pump test method according to claim 1, is characterized in that described storage tank (1) is provided with at least one outlet line and at least one suction line.
3. low temperature immersed pump test method according to claim 1, is characterized in that described test pump pond (12) is provided with blow-down pipe.
4. low temperature immersed pump test method according to claim 1, is characterized in that described test pump pond (12) is provided with level meter (10).
5. low temperature immersed pump test method according to claim 1, is characterized in that described pump to be measured (11) suction line is provided with valve.
6. low temperature immersed pump test method according to claim 1, is characterized in that the pipeline between described safety valve group (8) and flowmeter (6) is provided with valve.
7. low temperature immersed pump test method according to claim 1, is characterized in that the pipeline that described test pump pond (12) outlet line is connected with the suction line of storage tank (1) is provided with valve.
8. low temperature immersed pump test method according to claim 1, is characterized in that pipeline that described pump to be measured (11) suction line, test pump pond (12) outlet line, test pump pond (12) outlet line be connected with the suction line of storage tank (1) is all with insulation.
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 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510185700.7A CN104847671B (en) | 2015-04-20 | 2015-04-20 | Low temperature immersed pump method of testing |
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| CN104847671A true CN104847671A (en) | 2015-08-19 |
| CN104847671B CN104847671B (en) | 2016-10-19 |
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| CN201510185700.7A Active CN104847671B (en) | 2015-04-20 | 2015-04-20 | Low temperature immersed pump method of testing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864018A (en) * | 2016-04-05 | 2016-08-17 | 武汉船用机械有限责任公司 | Ultralow-temperature test device suitable for LNG immersed pump |
| CN113137379A (en) * | 2021-04-06 | 2021-07-20 | 上海交通大学 | Small skid-mounted closed loop testing device for evaluating comprehensive performance of cryogenic pump |
Citations (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 |
| CN102635559A (en) * | 2012-04-10 | 2012-08-15 | 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 |
| CN103758744A (en) * | 2014-02-24 | 2014-04-30 | 大连深蓝泵业有限公司 | Novel cryogenic pump test stand |
-
2015
- 2015-04-20 CN CN201510185700.7A patent/CN104847671B/en active Active
Patent Citations (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 |
| CN102635559A (en) * | 2012-04-10 | 2012-08-15 | 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 |
| CN103758744A (en) * | 2014-02-24 | 2014-04-30 | 大连深蓝泵业有限公司 | Novel cryogenic pump test stand |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864018A (en) * | 2016-04-05 | 2016-08-17 | 武汉船用机械有限责任公司 | Ultralow-temperature test device suitable for LNG immersed pump |
| 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 |
| CN113137379A (en) * | 2021-04-06 | 2021-07-20 | 上海交通大学 | Small skid-mounted closed loop testing device for evaluating comprehensive performance of cryogenic pump |
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| Publication number | Publication date |
|---|---|
| CN104847671B (en) | 2016-10-19 |
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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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