CN102852781A - Performance parameter measuring device for sand draining pump - Google Patents
Performance parameter measuring device for sand draining pump Download PDFInfo
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- CN102852781A CN102852781A CN2012103574723A CN201210357472A CN102852781A CN 102852781 A CN102852781 A CN 102852781A CN 2012103574723 A CN2012103574723 A CN 2012103574723A CN 201210357472 A CN201210357472 A CN 201210357472A CN 102852781 A CN102852781 A CN 102852781A
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Abstract
The invention provides a performance parameter measuring device for a sand draining pump, and belongs to the technical field of measuring apparatus of coal mine underground drainage facilities. The performance parameter measuring device comprises a water inlet pipeline (1), a pressure gauge (3), a flow meter (4) and a stop valve (6), wherein the water inlet pipeline (1) is arranged on a supporting frame (2); the pressure gauge, the flow meter and the stop valve are arranged on the water inlet pipeline (1); a lifting hydraulic cylinder (10) is arranged on the supporting frame (2); one end of an oil-way connecting pipe (9) is connected with the lifting hydraulic cylinder (10), while the other end of the oil-way connecting pipe (9) is connected with a reversing valve by an oil pump in a hydraulic pump station (8); the water inlet pipeline (1) is driven to raise and fall by a valve core of the lifting hydraulic cylinder (10); and an electric control plate (5) controls the hydraulic pump station (8) by a power lead; and an electric appliance control loop is used for realizing control by means of the electric control plate (5). The performance parameter measuring device can be used for simulating the loading running in a job site and and accurately measuring whether the important parameter of the sand draining pump which is repaired completely meets an appointed requirement; in addition, the performance parameter measuring device has the following advantages of simple structure and convenience in operation.
Description
Technical field
A kind of sand discharging pump measured performance parameter device belongs to coal mine underground water drainage facility detection facility technical field.
Background technique
Sand discharging pump is most widely used general, one of the most effective mine drainage facility.Safe and reliable drainage system is the important guarantee of mine safety production.Along with the development of Modern Pit, its reliability, stability, Security become scientific worker's goal in research.Draining need to be used a large amount of sand discharging pumps under the mine, so the maintenance of sand discharging pump is a very important job.And the height of sand discharging pump repair quality is drainage underground face one stubborn problem very.The method of the sand discharging pump that in the past check maintenance is good is sand discharging pump to be placed on turn round in the water tank, whether go up the quality that water is checked maintenance by observing, but can this check can only be measured sand discharging pump and work, can some the important running parameters that can not specifically measure sand discharging pump reach requirement, if things go on like this will cause the drainage underground equipment performance unstable, thereby bring many unsafe factors.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, a kind of can analog operation on-the-spot load operating is provided, whether the important parameter of the sand discharging pump that the Accurate Measurement maintenance is finished reaches specified requirement, and a kind of sand discharging pump measured performance parameter device simple in structure, handiness.
The technical solution adopted for the present invention to solve the technical problems is: this a kind of sand discharging pump measured performance parameter device, it is characterized in that: comprise the inlet pipeline that is installed on the supporting frame and the pressure gauge that is installed on the inlet pipeline, flowmeter, stop valve, lifting hydraulic cylinder is installed on the supporting frame, one end of oil circuit connecting tube connects lifting hydraulic cylinder, the other end of oil circuit connecting tube is connected with selector valve by the oil pump in the hydraulic power unit, spool by lifting hydraulic cylinder promotes the inlet pipeline lifting, electric control panel is controlled hydraulic power unit by power line, and the electrical equipment control loop is controlled by electric control panel.
Described supporting frame and lifting hydraulic cylinder all arrange two, and two are disposed on the rear and front end.
Sand discharging pump host computer control loop, Oil pump electrical machinery control loop, pressure gauge control loop and flowmeter control loop that described electrical equipment control loop comprises three-phase four-wire system 380V power loop, control switch KA2, transformer B2 and is in parallel, control switch KA2 is connected on three-phase firewire L1 ~ L3 of 380V, transformer B2 input end is connected on live wire L2 and the L3, is connected on the 36V power output end of transformer B2 after sand discharging pump host computer control loop, Oil pump electrical machinery control loop, pressure gauge control loop and flowmeter control loop are in parallel.
Described sand discharging pump host computer control loop is by contactor C2 and normally opened contact C2-1 to C2-4 thereof, stop button TA2 and start button QA2 form, the coil of contactor C2, be connected in parallel on the two ends of 36V power supply after stop button TA2 and the start button QA2 series connection, the normally opened contact C2-4 of contactor C2 is connected in parallel on the two ends of start button QA2, normally opened contact C2-1 to C2-3 is serially connected in three-phase firewire L1 ~ L3 and is connected with sand discharging pump after upper, the coil of contactor C2 and normally opened contact C2-4 thereof, stop button TA2, start button QA2 forms simple startup-maintenance-halt circuit, realizes the control to sand discharging pump;
The Oil pump electrical machinery control loop is comprised of contactor C3 and normally opened contact C3-1 to C3-4, stop button TA3 and start button QA3, be connected in parallel on the two ends of 36V power supply after the coil of contactor C3, stop button TA3 and the start button QA3 series connection, normally opened contact C3-4 is connected in parallel on the two ends of start button QA3, normally opened contact C3-1 to C3-3 is serially connected in three-phase firewire L1 ~ L3 and is connected with oil pump after upper, the coil of contactor C3 and normally opened contact C3-4 thereof, stop button TA3 and start button QA3 form simple startup-maintenance-halt circuit, realize the control to oil pump;
The pressure gauge control loop is comprised of contactor C4 and normally opened contact C4-1 to C4-3, stop button TA4 and start button QA4, be connected in parallel on the two ends of 36V power supply after the coil of contactor C4, stop button TA4 and the start button QA4 series connection, normally opened contact C4-3 is connected in parallel on the two ends of start button QA4, after being serially connected in live wire L1 and zero line N is upper, normally opened contact C4-1 to C4-2 is connected with pressure gauge, the coil of contactor C4 and normally opened contact C4-3 thereof, stop button TA4 and start button QA4 form simple startup-maintenance-halt circuit, realize manometric control;
The flowmeter control loop is by coil and the normally opened contact C5-1 to C5-3 thereof of contactor C5, stop button TA5, start button QA5 and the rectifier bridge that is comprised of diode D1 ~ D4 form, the coil of contactor C5, be connected in parallel on the two ends of 36V power supply after stop button TA5 and the start button QA5 series connection, normally opened contact C5-3 is connected in parallel on the two ends of start button QA5, link to each other with flowmeter behind normally opened contact C5-1 to C5-2 serial connection rectifier bridge D1 ~ D4 output terminal, rectifier bridge D1 ~ D4 input end is connected on zero line N and the live wire L1, the coil of contactor C5 and normally opened contact C5-3 thereof, stop button TA5 and start button QA5 form simple startup-maintenance-halt circuit, realize the control to flowmeter.
Described three-phase four-wire system power loop is 660V, comprise control switch KA1, transformer B1 and sand discharging pump host computer control loop, control switch KA1 is connected on three-phase firewire L1 ~ L3 of 660V, transformer B1 input end is connected on live wire L2 and the L3, sand discharging pump host computer control loop is connected on the 36V power output end of transformer B1, sand discharging pump host computer control loop is by contactor C1 and normally opened contact C1-1 to C1-4, stop button TA1 and start button QA1 form, the coil of contactor C1, be connected in parallel on the 36V power output end of transformer B1 after stop button TA1 and the start button QA1 series connection, normally opened contact C1-4 is connected in parallel on the two ends of start button QA1, normally opened contact C1-1 to C1-3 is serially connected on three-phase firewire L1 ~ L3, the coil of contactor C1 and normally opened contact C1-4 thereof, stop button TA1, start button QA1 forms simply startup-maintenance-halt circuit.
Compared with prior art, the beneficial effect that has of the present invention is:
Whether 1, can analog operation on-the-spot load operating, the important parameter of the sand discharging pump that the Accurate Measurement maintenance is finished reach specified requirement and have simple in structure, handiness, the advantage such as economical and practical;
2, adopt Intelligent flowmeter and electromagnetic flowmeter to carry out the record of parameter, running parameter that can the Measurement accuracy sand discharging pump, and the rear test data that goes offline can not lost;
3, by hydraulic lift, whole detection device is carried out vertical lift, convenient operation;
4, the present invention only need regularly carry out verification, has saved the cost of maintenance.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is 380V electrical equipment control of the present invention loop schematic representation.
Fig. 3 is 660V electrical equipment control of the present invention loop schematic representation.
Wherein: 1, inlet pipeline 2, supporting frame 3, pressure gauge 4, flowmeter 5, electric control panel 6, stop valve 7, selector valve switch 8, hydraulic power unit 9, oil circuit connecting tube 10, lifting hydraulic cylinder 11, Convenient table 12, backwater mouth 13, water intake adpting flange.
Embodiment
Fig. 1 ~ 2nd, most preferred embodiment of the present invention, the present invention will be further described below in conjunction with accompanying drawing 1 ~ 3.
As shown in Figure 1, this device mainly is comprised of following components: liquid-circulating part, hydraulic lifting part, electrical control part.The liquid-circulating part mainly is comprised of following components: inlet pipeline 1, pressure gauge 3, flowmeter 4, stop valve 6, Convenient table 11, backwater mouth 12, water intake adpting flange 13.The hydraulic lifting part mainly is comprised of following components: supporting frame 2, hydraulic power unit 8, oil circuit connecting tube 9, lifting hydraulic cylinder 10 and the selector valve of being controlled by selector valve switch 7.Electrical control part mainly is comprised of electric control panel 5 and some other necessary circuit parts.
Liquid-circulating part main body is inlet pipeline 1, and an end of inlet pipeline 1 is water intake adpting flange 13, is used for and being connected of sand discharging pump to be detected.In the centre of whole inlet pipeline 1, laying successively pressure gauge 3, flowmeter 4, stop valve 6, be used in system works some parameters being recorded and running state being controlled.The other end of inlet pipeline 1 is backwater mouth 12, water circulation can be back in the water tank.Be fixed with Convenient table 11 in the middle of the inlet pipeline 1, play the fixed support effect.
Whole liquid-circulating partial fixing is on lifting hydraulic cylinder 10, lifting hydraulic cylinder 10 is fixed on the supporting frame 2, one end of oil circuit connecting tube 9 connects lifting hydraulic cylinder 10, the other end is connected with selector valve by the oil pump in the hydraulic power unit 8, promotes the lifting of liquid-circulating part by the spool of lifting hydraulic cylinder 10.Also be fixed wtih selector valve switch 7 above the supporting frame 2.
Electric control panel 5 is mainly controlled the electrical control part of whole device.
As shown in Figure 2, the 380V power loop of this device is comprised of three live wire L1, L2, L3 and a zero line N, and power switch KA2 is connected on three live wire L1, L2, the L3, realizes closure, disconnection to current supply circuit.The input end of transformer B2 is connected on the two ends of live wire L2, L3.B2 is reduced to 36V with output end voltage by transformer.The output terminal of 36V power supply in parallel successively four control loops.Four control loops are respectively sand discharging pump host computer control loop, Oil pump electrical machinery control loop, pressure gauge control loop and flowmeter control loop.Respectively relevant device is controlled.
Sand discharging pump host computer control loop is by contactor C2 and normally opened contact C2-1 to C2-4 thereof, stop button TA2 and start button QA2 form, the coil of contactor C2, be connected in parallel on the two ends of 36V power supply after stop button TA2 and the start button QA2 series connection, the normally opened contact C2-4 of contactor C2 is connected in parallel on the two ends of start button QA2, normally opened contact C2-1 to C2-3 is serially connected in three-phase firewire L1 ~ L3 and is connected with sand discharging pump after upper, the coil of contactor C2 and normally opened contact C2-4 thereof, stop button TA2, start button QA2 has formed simple startup-maintenance-halt circuit, has realized the control to sand discharging pump.
The Oil pump electrical machinery control loop is comprised of contactor C3 and normally opened contact C3-1 to C3-4, stop button TA3 and start button QA3, be connected in parallel on the two ends of 36V power supply after the coil of contactor C3, stop button TA3 and the start button QA3 series connection, normally opened contact C3-4 is connected in parallel on the two ends of start button QA3, normally opened contact C3-1 to C3-3 is serially connected in three-phase firewire L1 ~ L3 and is connected with oil pump after upper, the coil of contactor C3 and normally opened contact C3-4 thereof, stop button TA3 and start button QA3 have formed simple startup-maintenance-halt circuit, have realized the control to oil pump.
The pressure gauge control loop is by contactor C4 and normally opened contact C4-1 to C4-3 thereof, stop button TA4 and start button QA4 form, the coil of contactor C4, be connected in parallel on the two ends of 36V power supply after stop button TA4 and the start button QA4 series connection, normally opened contact C4-3 is connected in parallel on the two ends of start button QA4, after being serially connected in live wire L1 and zero line N is upper, normally opened contact C4-1 to C4-2 is connected with pressure gauge 3, the coil of contactor C4 and normally opened contact C4-3 thereof, stop button TA4 and start button QA4 have formed simple startup-maintenance-halt circuit, have realized the control to pressure gauge 3.
The flowmeter control loop is by contactor C5 and normally opened contact C5-1 to C5-3, stop button TA5, start button QA5 and the rectifier bridge that is comprised of four diode D1 ~ D4.Be connected in parallel on the two ends of 36V power supply after the coil of contactor C5, stop button TA5 and the start button QA5 series connection, normally opened contact C5-3 is connected in parallel on the two ends of start button QA5.Four diode D1 ~ D4 form rectifier circuit AC rectification are become direct current, and D1 ~ D4 joins in twos and formed A, B, four nodes of C, D, and node A, C are input end, and B, D are output terminal.Node A, C are connected with live wire L1 with the zero line N of power supply respectively.Node D, B have connected successively and have been connected with flowmeter after two normally opened contact C5-1, the C5-2 of contactor C5, the coil of contactor C5 and normally opened contact C5-1 to C5-3, stop button TA5, start button QA5 have formed simple startup-maintenance-halt circuit, have realized the control to flowmeter 4.
The specific works process is as follows: at first press the button KA2, the 380V power supply circuits are connected, press pump start button QA3, start oil pump, oil pump rises lifting hydraulic cylinder 10 by oil circuit connecting tube 9, when rising to correct position, press oil pump stop button TA3, oil pump quits work.Then the sand discharging pump of needs being tested by the water intake adpting flange 13 on the inlet pipeline 1, links together sand discharging pump and whole device.Then reversing valve operated switch 7 is finished the oil circuit conversion by selector valve, and lifting hydraulic cylinder 10 is descended, and sand discharging pump is put into water tank.Press sand discharging pump start button QA2, sand discharging pump is started working, and the liquid of ejaculation is entering inlet pipeline 1 from pump discharge, and then the liquid of discharge flow through pressure gauge 3 and flowmeter 4 loop back in the water tank by backwater mouth 12.In whole process, can be according to actual needs, connection is installed in the pressure gauge 3 on the inlet pipeline 1, the power supply of flowmeter 4, relevant parameter is carried out record, and by and the contrast of sand discharging pump nominal parameter, can working flow and lift that determine pump meet the requirements, thereby determine the quality of pump repair quality.
Be illustrated in figure 3 as the 660V power loop, power loop is comprised of three live wire L1, L2, L3, and power switch KA1 is connected on three live wire L1, L2, the L3, realizes closure, disconnection to power loop.Transformer B1 input end connects live wire L2, L3.Transformer B1 is 36V with lower voltage, in the parallel connection of the two ends of 36V power supply a control loop.
This control loop mainly is comprised of the normally opened contact of contactor coil C1, stop button TA1, start button QA1 and contactor C1, be connected in parallel on the two ends of 36V power supply after contactor coil C1, stop button TA1, the start button QA1 series connection, the normally opened contact C1-4 of contactor C1 is connected in parallel on the two ends of start button QA1.
Three live wire L1, L2 in the power loop, L3's normally opened contact C1-1, C1-2, C1-3 of contactor C1 have connected respectively, need to use the equipment of 660V power supply, and normally opened contact C1-1, C1-2, C1-3 by contactor C1 are connected in series in the power loop.
The specific works mode is as follows: needs are carried out on normally opened contact C1-1, the C1-2 of the equipment of 660V power supply by contactor C1, C1-3 access live wire L1, L2, the L3, then plugged K switch A1, whole device power supply (DPS) is connected, then pressed start button QA1 and stop button TA1 and realize control to the equipment that carries out the 660V power supply.
The above only is preferred embodiment of the present invention, is not to be the restriction of the present invention being made other form, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solution of the present invention content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment does, still belongs to the protection domain of technical solution of the present invention according to technical spirit of the present invention.
Claims (5)
1. sand discharging pump measured performance parameter device, it is characterized in that: comprise the inlet pipeline (1) that is installed on the supporting frame (2) and be installed in pressure gauge (3) on the inlet pipeline (1), flowmeter (4), stop valve (6), lifting hydraulic cylinder (10) is installed on the supporting frame (2), one end of oil circuit connecting tube (9) connects lifting hydraulic cylinder (10), the other end of oil circuit connecting tube (9) is connected with selector valve by the oil pump in the hydraulic power unit (8), spool by lifting hydraulic cylinder (10) promotes inlet pipeline (1) lifting, electric control panel (5) is by power line control hydraulic power unit (8), and the electrical equipment control loop is controlled by electric control panel (5).
2. a kind of sand discharging pump measured performance parameter device according to claim 1, it is characterized in that: described supporting frame (2) and lifting hydraulic cylinder (10) all arrange two, and two are disposed on the rear and front end.
3. a kind of sand discharging pump measured performance parameter device according to claim 1, it is characterized in that: described electrical equipment control loop comprises three-phase four-wire system 380V power loop, control switch KA2, transformer B2 and the sand discharging pump host computer control loop that is in parallel, the Oil pump electrical machinery control loop, pressure gauge control loop and flowmeter control loop, control switch KA2 is connected on three-phase firewire L1 ~ L3 of 380V, transformer B2 input end is connected on live wire L2 and the L3, sand discharging pump host computer control loop, the Oil pump electrical machinery control loop, after being in parallel, pressure gauge control loop and flowmeter control loop be connected on the 36V power output end of transformer B2.
4. a kind of sand discharging pump measured performance parameter device according to claim 3, it is characterized in that: described sand discharging pump host computer control loop is by contactor C2 and normally opened contact C2-1 to C2-4 thereof, stop button TA2 and start button QA2 form, the coil of contactor C2, be connected in parallel on the two ends of 36V power supply after stop button TA2 and the start button QA2 series connection, the normally opened contact C2-4 of contactor C2 is connected in parallel on the two ends of start button QA2, normally opened contact C2-1 to C2-3 is serially connected in three-phase firewire L1 ~ L3 and is connected with sand discharging pump after upper, the coil of contactor C2 and normally opened contact C2-4 thereof, stop button TA2, start button QA2 forms simple startup-maintenance-halt circuit, realizes the control to sand discharging pump;
The Oil pump electrical machinery control loop is comprised of contactor C3 and normally opened contact C3-1 to C3-4, stop button TA3 and start button QA3, be connected in parallel on the two ends of 36V power supply after the coil of contactor C3, stop button TA3 and the start button QA3 series connection, normally opened contact C3-4 is connected in parallel on the two ends of start button QA3, normally opened contact C3-1 to C3-3 is serially connected in three-phase firewire L1 ~ L3 and is connected with oil pump after upper, the coil of contactor C3 and normally opened contact C3-4 thereof, stop button TA3 and start button QA3 form simple startup-maintenance-halt circuit, realize the control to oil pump;
The pressure gauge control loop is by contactor C4 and normally opened contact C4-1 to C4-3 thereof, stop button TA4 and start button QA4 form, the coil of contactor C4, be connected in parallel on the two ends of 36V power supply after stop button TA4 and the start button QA4 series connection, normally opened contact C4-3 is connected in parallel on the two ends of start button QA4, after being serially connected in live wire L1 and zero line N is upper, normally opened contact C4-1 to C4-2 is connected with pressure gauge (3), the coil of contactor C4 and normally opened contact C4-3 thereof, stop button TA4 and start button QA4 form simple startup-maintenance-halt circuit, realize the control to pressure gauge (3);
The flowmeter control loop is by coil and the normally opened contact C5-1 to C5-3 thereof of contactor C5, stop button TA5, start button QA5 and the rectifier bridge that is comprised of diode D1 ~ D4 form, the coil of contactor C5, be connected in parallel on the two ends of 36V power supply after stop button TA5 and the start button QA5 series connection, normally opened contact C5-3 is connected in parallel on the two ends of start button QA5, link to each other with flowmeter (4) behind normally opened contact C5-1 to C5-2 serial connection rectifier bridge D1 ~ D4 output terminal, rectifier bridge D1 ~ D4 input end is connected on zero line N and the live wire L1, the coil of contactor C5 and normally opened contact C5-3 thereof, stop button TA5 and start button QA5 form simple startup-maintenance-halt circuit, realize the control to flowmeter (4).
5. a kind of sand discharging pump measured performance parameter device according to claim 3, it is characterized in that: described three-phase four-wire system power loop is 660V, comprise control switch KA1, transformer B1 and sand discharging pump host computer control loop, control switch KA1 is connected on three-phase firewire L1 ~ L3 of 660V, transformer B1 input end is connected on live wire L2 and the L3, sand discharging pump host computer control loop is connected on the 36V power output end of transformer B1, sand discharging pump host computer control loop is by contactor C1 and normally opened contact C1-1 to C1-4, stop button TA1 and start button QA1 form, the coil of contactor C1, be connected in parallel on the 36V power output end of transformer B1 after stop button TA1 and the start button QA1 series connection, normally opened contact C1-4 is connected in parallel on the two ends of start button QA1, normally opened contact C1-1 to C1-3 is serially connected on three-phase firewire L1 ~ L3, the coil of contactor C1 and normally opened contact C1-4 thereof, stop button TA1, start button QA1 forms simply startup-maintenance-halt circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210357472.3A CN102852781B (en) | 2012-09-24 | 2012-09-24 | Performance parameter measuring device for sand draining pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210357472.3A CN102852781B (en) | 2012-09-24 | 2012-09-24 | Performance parameter measuring device for sand draining pump |
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| Publication Number | Publication Date |
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| CN102852781A true CN102852781A (en) | 2013-01-02 |
| CN102852781B CN102852781B (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210357472.3A Expired - Fee Related CN102852781B (en) | 2012-09-24 | 2012-09-24 | Performance parameter measuring device for sand draining pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100513A (en) * | 2014-08-01 | 2014-10-15 | 随州亿丰泵业有限公司 | Performance test platform of high-pressure water pump |
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| FR2380445A1 (en) * | 1977-02-09 | 1978-09-08 | Rexroth Sigma | Test rig for running-in hydraulic gear pumps - has torque, pressure and flow controlled within preset range of values |
| CN2204341Y (en) * | 1994-04-12 | 1995-08-02 | 煤炭科学研究总院杭州环境保护研究所 | Testing table for submersible electric pump |
| JPH10331774A (en) * | 1997-05-29 | 1998-12-15 | Maruma Tekunika Kk | Energy recovery type hydraulic tester |
| KR100988970B1 (en) * | 2010-02-03 | 2010-10-20 | 박형진 | Apparatus for testing for vertical type multi stage pump and method the same |
| CN202789479U (en) * | 2012-09-24 | 2013-03-13 | 淄博矿业集团有限责任公司 | Desilting pump performance parameter testing device |
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2012
- 2012-09-24 CN CN201210357472.3A patent/CN102852781B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2380445A1 (en) * | 1977-02-09 | 1978-09-08 | Rexroth Sigma | Test rig for running-in hydraulic gear pumps - has torque, pressure and flow controlled within preset range of values |
| CN2204341Y (en) * | 1994-04-12 | 1995-08-02 | 煤炭科学研究总院杭州环境保护研究所 | Testing table for submersible electric pump |
| JPH10331774A (en) * | 1997-05-29 | 1998-12-15 | Maruma Tekunika Kk | Energy recovery type hydraulic tester |
| KR100988970B1 (en) * | 2010-02-03 | 2010-10-20 | 박형진 | Apparatus for testing for vertical type multi stage pump and method the same |
| CN202789479U (en) * | 2012-09-24 | 2013-03-13 | 淄博矿业集团有限责任公司 | Desilting pump performance parameter testing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100513A (en) * | 2014-08-01 | 2014-10-15 | 随州亿丰泵业有限公司 | Performance test platform of high-pressure water pump |
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