CN105424264A - Valve flow and flow resistance coefficient detection device - Google Patents
Valve flow and flow resistance coefficient detection device Download PDFInfo
- Publication number
- CN105424264A CN105424264A CN201511007803.0A CN201511007803A CN105424264A CN 105424264 A CN105424264 A CN 105424264A CN 201511007803 A CN201511007803 A CN 201511007803A CN 105424264 A CN105424264 A CN 105424264A
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- Prior art keywords
- test pipeline
- valve
- flow
- pipeline
- resistance coefficient
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a valve flow and flow resistance coefficient detection device, which comprises a working table and a water storage tank, a water pump, a plurality of test pipelines and a pressure difference measurement device for detecting a pressure difference between the test pipelines arranged on the working table, wherein each test pipeline comprises a left test pipeline and a right test pipeline; the left test pipeline and the right test pipeline are oppositely arranged at an interval; the pressure difference measurement device is respectively connected with the left test pipeline and the right test pipeline; the left test pipeline is connected with the water inlet of the water storage tank; the right test pipeline is connected with the water outlet of the water storage tank; the right test pipeline is sequentially provided with a throttle valve and a flow meter; and the left test pipeline is provided with an adjusting valve. The flow meter and the pressure difference measurement device detect the flow and the pressure difference on the test pipeline, the detection data are then calculated, indexes such as the flow coefficient and the flow resistance coefficient of the valve are then obtained, the structure is simple, and operation is facilitated.
Description
Technical field
The present invention relates to valve detection equipment, more particularly, it relates to a kind of flow flow resistance coefficient pick-up unit of valve.
Background technology
The coefficient of flow of valve represents that fluid flows through the flow of fluid when valve produces unit pressure loss, and the coefficient of flow of valve is the index weighing valve negotiability, and coefficient of flow value is larger, illustrates that pressure loss when fluid flows through valve is less; The flow resistance coefficient of valve can weigh fluid by major power consumption after invention.And the coefficient of flow of invention, flow resistance coefficient depend on and the size of valve, form, structure, therefore the flow of valve and the detection of flow resistance coefficient improve valve products, for fluid engineering system reduces power dissipation design, improve important evidence.
Summary of the invention
For the deficiency that prior art exists, the object of the present invention is to provide a kind of flow flow resistance coefficient pick-up unit of valve, effectively can detect coefficient of flow and the flow resistance coefficient of valve.
For achieving the above object, the invention provides following technical scheme:
A kind of flow flow resistance coefficient pick-up unit of valve, comprise worktable and water tank, water pump, several test pipelines and the differential pressure measurement device for detecting the pressure differential of testing pipeline on worktable is set, each test pipeline comprises left test pipeline and right test pipeline, left test pipeline and right test pipeline relative spacing are arranged, and described differential pressure measurement device is connected with right test pipeline with left test pipeline respectively; Described left test pipeline is connected with the water inlet of water tank, and described right test pipeline is connected with the water delivering orifice of water tank by water pump, and described right test pipeline is provided with throttling valve and flowmeter successively, and described left test pipeline is provided with variable valve.
The present invention is arranged further: described differential pressure measurement device comprises differential manometer, and described differential manometer is provided with the left pressure pipe communicated with left test pipeline and the right pressure pipe communicated with right test pipeline.
The present invention is arranged further: described left pressure pipe and right pressure pipe are all provided with air valve.
The present invention is arranged further: described test pipeline also comprises pneumatic expansion joint, described pneumatic expansion joint comprises telescopic cylinder, floating pipe and fixed-piping, described fixed-piping is connected with right test pipeline, one end of described floating pipe is plugged on fixed-piping, the other end is connected with the telescopic shaft of telescopic cylinder, and described telescopic cylinder drives floating pipe automatic telescopic in fixed-piping.
Beneficial effect of the present invention: during test, tested valve is arranged between left test pipeline and right test pipeline, from water tank, water is squeezed in right test pipeline by water pump, and keep certain pressure, control the opening angle of valve to be measured, flowmeter and differential pressure measurement device detect the flow on test pipeline and pressure reduction, again these detection data calculated and draw the indexs such as the coefficient of flow of valve, flow resistance coefficient, throttling valve can control the flow testing pipeline, variable valve can regulate the pressure of test pipeline, structure is simple, convenient operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the flow flow resistance coefficient pick-up unit of a kind of valve of the present invention;
The principle schematic of the flow flow resistance coefficient pick-up unit that Fig. 2 is a kind of valve of the present invention;
Fig. 3 is the principle schematic of differential pressure measurement device;
Fig. 4 is the structural representation of pneumatic expansion joint.
Description of reference numerals: 1, worktable; 2, water tank; 3, water pump; 4, pipeline is tested; 41, left test pipeline; 42, right test pipeline; 43, pneumatic expansion joint; 431, telescopic cylinder; 432, floating pipe; 433, fixed-piping; 5, differential pressure measurement device; 51, differential manometer; 52, air valve; 6, thermometer; 7, throttling valve; 8, flowmeter; 9, variable valve.
Embodiment
Be described in further details with reference to the flow flow resistance coefficient pick-up unit embodiment of accompanying drawing 1 to Fig. 4 to a kind of valve of the present invention.
A kind of flow flow resistance coefficient pick-up unit of valve, comprise worktable 1 and water tank 2, water pump 3, several test pipelines 4 and the differential pressure measurement device 5 for detecting the pressure differential of testing pipeline 4 on worktable 1 is set, wherein several test pipelines 4 can laid out in parallel, makes whole apparatus structure compacter.
Each test pipeline 4 comprises left test pipeline 41 and right test pipeline 42, left test pipeline 41 and right test pipeline 42 relative spacing are arranged, tested valve is arranged between left test pipeline 41 and right test pipeline 42, simultaneously for the ease of the clamping of valve to be measured, described test pipeline 4 also comprises pneumatic expansion joint 43, described pneumatic expansion joint 43 comprises telescopic cylinder 431, floating pipe 432 and fixed-piping 433, described fixed-piping 433 is connected with right test pipeline 42, described fixed-piping 433 also can be connected with right test pipeline 42, one end of described floating pipe 432 is plugged on fixed-piping 433, the other end is connected with the telescopic shaft of telescopic cylinder 431, described telescopic cylinder 431 drives floating pipe 432 automatic telescopic in fixed-piping 433, can the tested valve of clamping different size.
Described differential pressure measurement device 5 is connected with right test pipeline 42 with left test pipeline 41 respectively; Described left test pipeline 41 is connected with the water inlet of water tank 2, described right test pipeline 42 is connected by the water delivering orifice of water pump 3 with water tank 2, described right test pipeline 42 is provided with thermometer 6, throttling valve 7 and flowmeter 8 successively, and described left test pipeline 41 is provided with variable valve 9.
Wherein said differential pressure measurement device 5 comprises differential manometer 51, described differential manometer 51 is provided with the left pressure pipe communicated with left test pipeline 41 and the right pressure pipe communicated with right test pipeline 42, test fluid can be facilitated through the pressure differential of tested valve, and described left pressure pipe 52 and right pressure pipe 53 are all provided with air valve 52.
Principle of work: during test, tested valve is arranged between left test pipeline 41 and right test pipeline 42, and carry out clamping by pneumatic expansion joint 43, from water tank 2, water is squeezed in right test pipeline 42 by water pump 3 again, and keep certain pressure, control the opening angle of valve to be measured, flowmeter 8 and differential pressure measurement device 5 detect the flow Q on test pipeline 4 and pressure differential deltap p, again these detection data calculated and draw the coefficient of flow of valve, the indexs such as flow resistance coefficient, throttling valve 7 can control the flow testing pipeline 4, variable valve 9 can regulate the pressure of test pipeline 4, structure is simple, convenient operation.
Wherein valve flow coefficient C=Q √ ρ/Δ p; Wherein flow resistance coefficient K=2 Δ p/ ρ u
2
C-coefficient of flow in formula; Q-volumetric flow rate; ρ-fluid density; The pressure loss of Δ p-valve, the mean flow rate of u-fluid in pipeline (mm/s), u=Q/A, A are the diameter of test pipeline 4.
The above is only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, and all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. the flow flow resistance coefficient pick-up unit of a valve, it is characterized in that: comprise worktable and water tank, water pump, several test pipelines and the differential pressure measurement device for detecting the pressure differential of testing pipeline on worktable is set, each test pipeline comprises left test pipeline and right test pipeline, left test pipeline and right test pipeline relative spacing are arranged, and described differential pressure measurement device is connected with right test pipeline with left test pipeline respectively;
Described left test pipeline is connected with the water inlet of water tank, and described right test pipeline is connected with the water delivering orifice of water tank by water pump, and described right test pipeline is provided with throttling valve and flowmeter successively, and described left test pipeline is provided with variable valve.
2. the flow flow resistance coefficient pick-up unit of a kind of valve according to claim 1, is characterized in that: described differential pressure measurement device comprises differential manometer, and described differential manometer is provided with the left pressure pipe communicated with left test pipeline and the right pressure pipe communicated with right test pipeline.
3. the flow flow resistance coefficient pick-up unit of a kind of valve according to claim 2, is characterized in that: described left pressure pipe and right pressure pipe are all provided with air valve.
4. the flow flow resistance coefficient pick-up unit of a kind of valve according to claim 1 or 2 or 3, it is characterized in that: described test pipeline also comprises pneumatic expansion joint, described pneumatic expansion joint comprises telescopic cylinder, floating pipe and fixed-piping, described fixed-piping is connected with right test pipeline, one end of described floating pipe is plugged on fixed-piping, the other end is connected with the telescopic shaft of telescopic cylinder, and described telescopic cylinder drives floating pipe automatic telescopic in fixed-piping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511007803.0A CN105424264A (en) | 2015-12-28 | 2015-12-28 | Valve flow and flow resistance coefficient detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511007803.0A CN105424264A (en) | 2015-12-28 | 2015-12-28 | Valve flow and flow resistance coefficient detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105424264A true CN105424264A (en) | 2016-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511007803.0A Pending CN105424264A (en) | 2015-12-28 | 2015-12-28 | Valve flow and flow resistance coefficient detection device |
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| CN (1) | CN105424264A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374289A (en) * | 2018-12-26 | 2019-02-22 | 江苏里斯特通用机械制造有限公司 | Throttle flow rate test device and its test method |
| CN111307462A (en) * | 2019-12-05 | 2020-06-19 | 中国航发四川燃气涡轮研究院 | Flow calculation method for air inlet wheel disc type regulating valve of high-altitude platform |
| CN112197954A (en) * | 2020-10-30 | 2021-01-08 | 重庆福瑞斯自动化设备股份有限公司 | Water valve assembly detection equipment |
| CN116952564A (en) * | 2023-08-07 | 2023-10-27 | 苏州罗克莱科技有限公司 | High-pressure check valve test fixture |
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| CN202451502U (en) * | 2012-03-01 | 2012-09-26 | 丹东通博测控工程技术有限公司 | Pneumatic expansion piece of flow standard device |
| CN203259337U (en) * | 2013-05-17 | 2013-10-30 | 武汉工程大学 | High-temperature valve detection test system |
| CN203772528U (en) * | 2013-12-31 | 2014-08-13 | 湖北洪城通用机械有限公司 | Valve pressure test water circulation device |
| CN104880310A (en) * | 2015-06-08 | 2015-09-02 | 宁波埃美柯铜阀门有限公司 | Valve flow measuring system |
| CN205300835U (en) * | 2015-12-28 | 2016-06-08 | 北航温州研究院 | Flow flow resistance coefficient detection device of valve |
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2015
- 2015-12-28 CN CN201511007803.0A patent/CN105424264A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20100200083A1 (en) * | 2009-02-10 | 2010-08-12 | Surpass Industry Co., Ltd. | Flow rate controller |
| CN201803838U (en) * | 2010-09-20 | 2011-04-20 | 杭州春江阀门有限公司 | Multifunctional valve testing system |
| CN201955224U (en) * | 2011-01-25 | 2011-08-31 | 卓旦春 | Valve test system |
| CN202451502U (en) * | 2012-03-01 | 2012-09-26 | 丹东通博测控工程技术有限公司 | Pneumatic expansion piece of flow standard device |
| CN203259337U (en) * | 2013-05-17 | 2013-10-30 | 武汉工程大学 | High-temperature valve detection test system |
| CN203772528U (en) * | 2013-12-31 | 2014-08-13 | 湖北洪城通用机械有限公司 | Valve pressure test water circulation device |
| CN104880310A (en) * | 2015-06-08 | 2015-09-02 | 宁波埃美柯铜阀门有限公司 | Valve flow measuring system |
| CN205300835U (en) * | 2015-12-28 | 2016-06-08 | 北航温州研究院 | Flow flow resistance coefficient detection device of valve |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374289A (en) * | 2018-12-26 | 2019-02-22 | 江苏里斯特通用机械制造有限公司 | Throttle flow rate test device and its test method |
| CN111307462A (en) * | 2019-12-05 | 2020-06-19 | 中国航发四川燃气涡轮研究院 | Flow calculation method for air inlet wheel disc type regulating valve of high-altitude platform |
| CN111307462B (en) * | 2019-12-05 | 2021-08-20 | 中国航发四川燃气涡轮研究院 | Flow calculation method for air inlet wheel disc type regulating valve of high-altitude platform |
| CN112197954A (en) * | 2020-10-30 | 2021-01-08 | 重庆福瑞斯自动化设备股份有限公司 | Water valve assembly detection equipment |
| CN116952564A (en) * | 2023-08-07 | 2023-10-27 | 苏州罗克莱科技有限公司 | High-pressure check valve test fixture |
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