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Two-way flow resistance testing system and method suitable for different fluid devices

A fluid equipment and testing system technology, which is applied in the testing of mechanical parts, liquid/fluid solids measurement, and testing of machine/structural parts, etc. The effect of large variation range, guaranteed measurement environment and fast response speed

Pending Publication Date: 2019-06-28
NAVAL UNIV OF ENG PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most technical solutions are usually built for specific equipment, and can only be used for the flow resistance measurement of specific equipment, which has great limitations and poor expandability; the function is single, and usually only can measure the unidirectional flow resistance characteristics of the equipment. For the main pump and other forward and reverse bidirectional flow resistance characteristics are very important and very bulky equipment; the flow adjustment scheme is complicated, the measurement efficiency is low, and the design concept of the pipeline and measurement and control system still has a lot of room for improvement
These technical solutions have high economic investment and poor functionality, resulting in low device utilization and low practical value

Method used

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  • Two-way flow resistance testing system and method suitable for different fluid devices
  • Two-way flow resistance testing system and method suitable for different fluid devices
  • Two-way flow resistance testing system and method suitable for different fluid devices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] Embodiment one, with reference to the attached Figure 4As shown, when the fluid equipment to be tested needs to be installed in the first test pipe section 21, and the fluid equipment is a large fluid equipment, such as a large pump body, and the forward resistance characteristic measurement of the equipment is to be performed, the first pipeline is opened 6 on the first regulating valve 7, the second regulating valve 12, close the third regulating valve 14 on the second pipeline 13, open the first shut-off valve 19, the second shut-off valve 20, the second shut-off valve on the third pipeline 15 Three shut-off valves 22, the fourth shut-off valve 23, the fifth shut-off valve 24, the fourth regulating valve 25, simultaneously close the sixth shut-off valve 29 and the seventh shut-off valve 31 on the fourth pipeline 16, and close the fifth pipeline The eighth shut-off valve 34, the ninth shut-off valve 36 on 17, and the tenth shut-off valve 39 and the eleventh shut-off ...

Embodiment 2

[0084] Embodiment two, referring to the attached Figure 5 As shown, when it is necessary to install fluid equipment to be tested on the first test pipe section 21, and the fluid equipment is a large fluid equipment, such as a large pump body, and the reverse resistance characteristic measurement of the equipment is to be performed, the first pipeline is opened The first regulating valve 7 and the second regulating valve 12 on 6, close the third regulating valve 14 on the second pipeline 13, open the eighth shut-off valve 34 and the ninth shut-off valve 36 on the fifth pipeline 17, and pass The conduction blind plate makes the third test pipe section 35 in a conduction state, opens the second shut-off valve 20, the third shut-off valve 22, and the fourth regulating valve 25 on the third pipeline 15, and closes the first shut-off valve 19 and the fourth regulating valve at the same time. Four shut-off valves 23, close the sixth shut-off valve 29 and the seventh shut-off valve 3...

Embodiment 3

[0085] Embodiment three, with reference to the attached Image 6 As shown, when the fluid equipment to be tested needs to be installed in the second test pipe section 30, and the fluid equipment is a large fluid equipment, such as a large pump body, and the forward resistance characteristic measurement of the equipment is to be performed, the first pipeline is opened 6 on the first regulating valve 7, the second regulating valve 12, close the third regulating valve 14 on the second pipeline 13, open the first shut-off valve 19, the fourth shut-off valve 23, the third shut-off valve on the third pipeline 15 Five shut-off valves 24, fourth regulating valve 25, simultaneously close the second shut-off valve 20, the third shut-off valve 22, open the sixth shut-off valve 29 and the seventh shut-off valve 31 on the fourth pipeline 16, close the fifth pipeline The eighth shut-off valve 34 and the ninth shut-off valve 36 on 17, and close the tenth shut-off valve 39 and the eleventh sh...

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Abstract

The invention provides a two-way flow resistance testing system and method suitable for different fluid devices. The system comprises a liquid source device, an adjusting device, a testing device anda control device, wherein the liquid source device comprises a liquid box; the adjusting device comprises a first pipeline and a second pipeline, and a third adjusting valve is arranged on the secondpipeline; the testing device comprises a third pipeline, a fourth pipeline, a fifth pipeline and a sixth pipeline; the control device comprises a data acquisition device and a computer. A to-be-detected fluid device is additionally mounted in a corresponding testing pipe section, so that the pipeline where the to-be-detected fluid device is located is connected with one or more other pipelines toform a testing circulation loop, flow data Q, pressure differential data H and temperature data T in a sample testing process are acquired by a data collector, a flow resistance coefficient K and Reynolds number Re are obtained automatically by a computer, and a flow resistance characteristic curve of the to-be-detected fluid device is obtained finally.

Description

technical field [0001] The invention relates to the technical field of flow resistance measurement, in particular to a bidirectional flow resistance test system and a test method applicable to different fluid equipment. Background technique [0002] In the fields of petroleum, chemical industry, thermal energy, etc., due to the large flow resistance brought by various equipment in the fluid transportation system, it greatly affects the energy saving and consumption reduction characteristics of the system, and may also cause serious damage to the operating safety and reliability of the system. threaten. Especially in the field of nuclear power reactors, due to the shutdown of the main pump in accidents such as power outages in the whole plant, the pump changes from the power source of the coolant delivery system to the main resistance of the circuit, which has a great impact on the natural circulation capacity of the system. Insufficiency may lead to the inability to export ...

Claims

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Application Information

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IPC IPC(8): G01F13/00G01F1/00G01M13/00
Inventor 郝建立李伟通李明芮于雷
Owner NAVAL UNIV OF ENG PLA
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