CN102635559B - Closed pipeline device of pump test system - Google Patents
Closed pipeline device of pump test system Download PDFInfo
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- CN102635559B CN102635559B CN201210102970.3A CN201210102970A CN102635559B CN 102635559 B CN102635559 B CN 102635559B CN 201210102970 A CN201210102970 A CN 201210102970A CN 102635559 B CN102635559 B CN 102635559B
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Abstract
The invention provides a closed pipeline device of a pump test system. The closed pipeline device comprises a water tank, a centrifugal pump, a first flow collecting tank and a second flow collecting tank, wherein the water tank and the centrifugal pump are connected through a water inlet pipe, the top end of the water tank is connected with a vacuum-pumping device, the vacuum-pumping device comprises a vacuum pump, the water tank and the vacuum pump are connected through a vacuum device pipe, the water tank is provided with a water tank air inlet pipe, and a valve group is connected and arranged on the vacuum device pipe. The vacuum pump is a water-ring vacuum pump, and a first gas-water separator is installed on the vacuum pump. According to the closed pipeline device, a submersible pump is arranged in the water tank, the submersible pump and the water inlet pipe are connected through a submersible pump pipe so as to test parameters of a same water pump in different environments, and further test parameters generated in a cavitation phenomenon in the normal condition, as well as parameters of the pipes with different pipe diameters and in parallel connection. The device is convenient to use without needing of change and is low in test cost, and can not only test experimental parameters of the water pumps with different types, but also test the performance of the centrifugal pump, as well as the performance of the submersible pump.
Description
Technical field
The present invention relates to a kind of test pumping installations, is exactly a kind of pump class testing system closed line system.
Background technique
Parallel water pump generally needs to test parameter under various circumstances.Such as: during normal course of operation, when there is cavitation phenomenon, in the pipeline of different-diameter and parameter relevant in multiple pipeline parallel process.Water pump comprises centrifugal pump (vertical, horizontal, single-stage, multistage) and submersible pump (well with, small-sized, sewage, mining, single-phase, screw rod) etc., and the parameter of various pump also needs through test.There is following shortcoming in current testing apparatus: 1, a kind of testing apparatus can only measure the Operational Limits under single environment of pump, if the parameter under needing to obtain more multi-environment needs to carry out changing under different testing apparatuss, complicated operation is loaded down with trivial details, use inconvenience, testing cost is high, and Renewal process occupies a large amount of time of test; 2, testing apparatus can only test the test parameters of the pump of a type, cannot realize the testing property of different types of water pump, the narrow application range of a device; 3, test installation of pump is dismantled in centrifugal pump process after test, due to test water residual in pipeline outflow, not only causes test stand dirty and messy, and the efficiency of scale removal process impact dismounting centrifugal pump, tests current simultaneously and loses.A kind of various water pump testing apparatus under various circumstances of can testing is the emphasis that current those skilled in the art study.
Summary of the invention
The object of this invention is to provide a kind of pump class testing system closed line system device, can solve the problem.
The present invention for achieving the above object, be achieved through the following technical solutions: pump class testing system closed line system device, comprise water pot, centrifugal pump, the first afflux tank and the second afflux tank, connected by intake pipe between water pot and centrifugal pump, connected by outlet pipe between centrifugal pump and the first afflux tank, connected by several sounding pipe between first afflux tank and the second afflux tank, in parallel between each sounding pipe, connected by return pipe between the second afflux tank and water pot; Mounted valve group respectively on intake pipe, outlet pipe, sounding pipe and return pipe, intake pipe, outlet pipe, sounding pipe install and measure device; Intake pipe, outlet pipe and return pipe are main line.
In order to realize object of the present invention further, can also by the following technical solutions: water pot top connects vacuum pumping device, described vacuum pumping device comprises vacuum pump, connected by vacuum system pipe between water pot and vacuum pump, water pot is installed water pot suction tude, vacuum system pipe connects upper mounted valve group.Described vacuum pump is Nash hytor, vacuum pump is installed the first steam-water separator.Arrange submersible pump in water pot, be connected between submersible pump with intake pipe by diving pump line, diving pump line is connected on the pipeline between the valve sets of intake pipe and the first afflux tank.Main line installs reflux, described reflux comprises main line suction tude and the second steam-water separator, mounted valve group in main line suction tude, connected by the second steam-water separator intake pipe between main line and the second steam-water separator, connected by the second steam-water separator outlet pipe between second steam-water separator and water pot, mounted valve group on the second steam-water separator intake pipe and/or the second steam-water separator outlet pipe.Described valve sets is made up of manually operated valve and electric control valve or mortor operated valve and electric control valve.Described water pot, the first afflux tank and the second afflux tank install water pot bleed valve, the first afflux tank bleed valve and the second afflux tank bleed valve respectively; Mounting safety valve on water pot.
The invention has the advantages that: same water pump parameter under various circumstances can be tested, not only under can testing normal state but also the parameter that can complete when there is cavitation phenomenon, parameter when different tube diameters and the parallel connection of each caliber can also be tested, without the need to changing testing apparatus, simple and efficient to handle, easy to use, testing cost is low, save the test time, can increase work efficiency; Can also the test parameters of test different types water pump, such as: both can test performance of centrifugal pump and also can test submersible pump performance; After being completed, test water is back to water pot, flows out, test stand can be kept to clean in dismounting water pump process without test water.The present invention also has advantage compact, cheap for manufacturing cost and easy to use simple for structure.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Reference character: 1 centrifugal pump 2 water pot 3 first afflux tank 4 second afflux tank 5 intake pipe 6 outlet pipe 7 sounding pipe 8 return pipe 9 vacuum pump 10 vacuum system pipe 11 first steam-water separator 12 submersible pump 13 is dived under water pump line 14 second steam-water separator 15 second steam-water separator intake pipe 16 second steam-water separator outlet pipe 17 main line suction tude 18 water pot suction tude 19 water pot bleed valve 20 first afflux tank bleed valve 21 second afflux tank bleed valve 22 safety valve 23 standby valve group 24 safety check 25 air-flow scale 26 water flowmeter 27 thermometer 28 pressure gauge 29 water level gage.
Embodiment
Pump class testing system closed line system, as shown in the figure, comprise water pot 2, centrifugal pump 1, first afflux tank 3 and the second afflux tank 4, connected by intake pipe 5 between water pot 2 and centrifugal pump 1, connected by outlet pipe 6 between centrifugal pump 1 and the first afflux tank 3, connected by four sounding pipes 7 between first afflux tank 3 and the second afflux tank 4, in parallel between each sounding pipe 7, connected by return pipe 8 between the second afflux tank 4 and water pot 2; Mounted valve group respectively on intake pipe 5, outlet pipe 6, sounding pipe 7 and return pipe 8, intake pipe 5, outlet pipe 6, sounding pipe 7 install and measure device; Intake pipe 5, outlet pipe 6 and return pipe 8 is main line.The diameter of each sounding pipe 7 is different.Described measuring device comprises water flowmeter 26, thermometer 27, pressure gauge 28 and water level gage 29.Water flowmeter 26 is arranged on each sounding pipe 7, and intake pipe 5 and outlet pipe 6 all install thermometer 27 and pressure gauge 28, setting pressure table 28 and water level gage 29 on water pot 2.When carrying out test to centrifugal pump and measuring, open valve sets, start centrifugal pump, record each measuring device data.When needs measure of the change environment, by the valve sets on opening/closing sounding pipe 7, change the situation of pipeline, the object of centrifugal pump under realization measurement varying environment.Compared with typical measuring arrangements, can the situation of flexible transformation pipeline, conveniently measure the parameter of different pipeline when centrifugal pump normally uses, measuring range increases.
The parameter of water pump when there is cavitation phenomenon for measuring, water pot 2 top connects vacuum pumping device, and described vacuum pumping device comprises vacuum pump 9, is connected between water pot 2 and vacuum pump 9 by vacuum system pipe 10, water pot 2 is installed water pot suction tude 18, vacuum system pipe 10 connects upper mounted valve group.Be start vacuum pump 9 when needs carry out cavitation test, reduce the pressure in device, with reach there is cavitation phenomenon time environment, after off-test, canister incoming gas pipe 18 of fetching boiling water makes device environment recover.The present invention can complete the task of the parameter measuring water pump when there is cavitation phenomenon, and the measuring device without the need to more renewing during measurement, implements convenient and swift.Vacuum system pipe 10 is installed two vacuum pumps, 9, two vacuum pumps 9 in parallel, during use, can work independently by a vacuum pump 9, also can work by two vacuum pumps 9 simultaneously.This structure can not only improve the degree of vacuum in device, can also replace work by another vacuum pump 9 when a vacuum pump 9 goes wrong, thus the normal operation of proof test process.
Vacuum pump 9 adopts reciprocating vacuum pump, rotary-vane vaccum pump, Roots blower or Nash hytor.Described vacuum pump 9 preferred water ring vacuum pumps, vacuum pump 9 is installed the first steam-water separator 11.Due in the gas extracted out containing large quantity of moisture, the gas containing moisture of extraction is after the first steam-water separator 11, and after carbonated drink is separated, gas is discharged in air, and water is stayed in vacuum pump 9 and used as circulating water.The loss of test water can not only be reduced like this, cause unnecessary waste, can Nash hytor replenishment cycles water be given again, ensure to reach suitable cavitation erosion environment.
For realizing measuring diving pump performance, arrange submersible pump 12 in water pot 2, be connected between submersible pump 12 with intake pipe 5 by pump line 13 of diving under water, diving pump line 13 is connected on the pipeline between the valve sets of intake pipe 5 and the first afflux tank 3.When needs are measured submersible pump 12, close the valve sets on intake pipe 5, submersible pump 12, water pot, between the first afflux tank 3, second afflux tank 4 and main line, form loop, by the thermometer 27 on intake pipe 5 and pressure gauge 28, the performance of the water flowmeter 26 pairs of submersible pumps 12 on sounding pipe 7 is carried out test and is measured.The present invention can not only measure centrifugal technical data required for the pump, and the test that also can complete submersible pump is measured.Measurement easy switching is flexible, can realize the test mission of various pumps class.
For preventing the problem of unloading process test water outflow and pollution test stand after off-test, main line installs reflux, described reflux comprises main line suction tude 17 and the second steam-water separator 14, mounted valve group in main line suction tude 17, connected by the second steam-water separator intake pipe 15 between main line and the second steam-water separator 14, as shown in the figure, second steam-water separator 14 is connected with intake pipe 5, connected by the second steam-water separator outlet pipe 16 between second steam-water separator 14 and water pot 2, mounted valve group on second steam-water separator intake pipe 15 and the second steam-water separator outlet pipe 16.After test, close the valve sets on intake pipe 5, the valve sets opened in suction tude 17 is ventilated in device, open mounted valve group on the second steam-water separator intake pipe 15 and the second steam-water separator outlet pipe 16 simultaneously, residual test water is pressed into the second steam-water separator 14, gas is discharged into air, and moisture is back in water pot 2.Water pot 2 has been back to by the residue test water in main line, at unloading process without the outflow of test water, cleaning of proof test platform; Unloading process, without the need to carrying out the cleaning work testing water, can improve working efficiency during dismounting; Test water loss can not be caused because of unloading process simultaneously.
Described valve sets is made up of manually operated valve and electric control valve or mortor operated valve and electric control valve.Manually operated valve is with low cost, and installation, maintenance is convenient; Mortor operated valve is easy to use, quick, can realize remote switch, be convenient to test operation; Motorized adjustment valve regulation is accurate, can proof test process stabilization, and test data is accurate.
For the safety of proof test process, described water pot 2, first afflux tank 3 and the second afflux tank 4 install water pot bleed valve 19, first afflux tank bleed valve 20 and the second afflux tank bleed valve 21 respectively; Mounting safety valve 22 on water pot 2.Safety check 24 installed by main line suction tude 17 and the second steam-water separator outlet pipe 16.
Water pot 2 being installed standby valve group 23, when the valve sets on intake pipe 5 breaks down, ensureing that realizing process of the test normally carries out by connecting standby valve group 23.
For the ease of the calculating of control and measurement result, valve sets, measuring device and water pump connection control device, control gear is made up of upper-position unit and lower-position unit.Lower-position unit adopts PLC, is connected by the relay of each module output interface and water pump, valve sets and measuring device; Upper-position unit adopts computer, is provided with Testing Software, can obtains the data of the measuring device of lower-position unit, the setting of display device running state, parameter, the storage of data, and curve plotting, by the opening and closing of lower-position unit control valve device and water pump.
Technological scheme of the present invention is not restricted in the scope of embodiment of the present invention.The technology contents of the not detailed description of the present invention is known technology.
Claims (1)
1. pump class testing system closed line system device, it is characterized in that: comprise water pot (2), centrifugal pump (1), the first afflux tank (3) and the second afflux tank (4), connected by intake pipe (5) between water pot (2) and centrifugal pump (1), connected by outlet pipe (6) between centrifugal pump (1) and the first afflux tank (3), connected by several sounding pipe (7) between first afflux tank (3) and the second afflux tank (4), in parallel between each sounding pipe (7), connected by return pipe (8) between the second afflux tank (4) and water pot (2); Mounted valve group respectively on intake pipe (5), outlet pipe (6), sounding pipe (7) and return pipe (8), (7) install and measure device for intake pipe (5), outlet pipe (6), sounding pipe; Intake pipe (5), outlet pipe (6) and return pipe (8) are main line; Arrange submersible pump (12) in water pot (2), be connected between submersible pump (12) with intake pipe (5) by pump line (13) of diving under water, diving pump line (13) is connected on the pipeline between the valve sets of intake pipe (5) and the first afflux tank (3); Main line installs reflux, described reflux comprises main line suction tude (17) and the second steam-water separator (14), the upper mounted valve group of main line suction tude (17), connected by the second steam-water separator intake pipe (15) between main line and the second steam-water separator (14), connected by the second steam-water separator outlet pipe (16) between second steam-water separator (14) and water pot (2), the second steam-water separator intake pipe (15) and/or the upper mounted valve group of the second steam-water separator outlet pipe (16); Water pot (2) top connects vacuum pumping device, described vacuum pumping device comprises vacuum pump (9), connected by vacuum system pipe (10) between water pot (2) and vacuum pump (9), water pot (2) is upper installs water pot suction tude (18), the upper mounted valve group of vacuum system pipe (10); Described vacuum pump (9) is Nash hytor, upper installation first steam-water separator (11) of vacuum pump (9); Described water pot (2), the first afflux tank (3) and the second afflux tank (4) are installed respectively water pot bleed valve (19), the first afflux tank bleed valve (20) and the second afflux tank bleed valve (21); The upper mounting safety valve (22) of water pot (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210102970.3A CN102635559B (en) | 2012-04-10 | 2012-04-10 | Closed pipeline device of pump test system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210102970.3A CN102635559B (en) | 2012-04-10 | 2012-04-10 | Closed pipeline device of pump test system |
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| CN102635559A CN102635559A (en) | 2012-08-15 |
| CN102635559B true CN102635559B (en) | 2015-02-25 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102788008B (en) * | 2012-08-27 | 2015-06-10 | 哈尔滨电气动力装备有限公司 | Forced circulation pump testing apparatus structure for boiler for thermal power station |
| CN103148345B (en) * | 2013-02-01 | 2016-05-18 | 太平洋水处理工程有限公司 | A kind of Water-saving full automatic often hangs vacuum plant |
| CN104564643B (en) * | 2015-01-06 | 2017-01-25 | 江苏大学 | Immersed pump cavitation test bed |
| CN104847671B (en) * | 2015-04-20 | 2016-10-19 | 中国石油化工股份有限公司青岛安全工程研究院 | Low temperature immersed pump method of testing |
| CN106762709B (en) * | 2016-12-13 | 2018-07-27 | 合肥工业大学 | A kind of micro- lift vertical axial-flow pump lift measuring device and measuring method |
| CN106968934B (en) * | 2017-04-26 | 2018-12-18 | 广东肯富来泵业股份有限公司 | Pump cavitation surplus Auto-Test System and its method |
| CN106979162B (en) * | 2017-04-26 | 2018-12-04 | 广东肯富来泵业股份有限公司 | Pump closed testing bench control system and test method |
| CN112664441A (en) * | 2020-12-09 | 2021-04-16 | 江苏大学镇江流体工程装备技术研究院 | Multifunctional water pump test board |
| CN112814924B (en) * | 2020-12-25 | 2022-05-20 | 浙江省机电设计研究院有限公司 | Automatic pipe replacing device for vertical centrifugal pump test and working method thereof |
| CN113236600A (en) * | 2021-06-03 | 2021-08-10 | 马震 | Pump shaft maintenance strengthening method |
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| CN102635559A (en) | 2012-08-15 |
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