CN208568267U - A kind of pressure loss test macro - Google Patents
A kind of pressure loss test macro Download PDFInfo
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- CN208568267U CN208568267U CN201821303901.8U CN201821303901U CN208568267U CN 208568267 U CN208568267 U CN 208568267U CN 201821303901 U CN201821303901 U CN 201821303901U CN 208568267 U CN208568267 U CN 208568267U
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- test tube
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- pressure loss
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Abstract
The utility model provides a kind of for measuring the capital equipments such as pressure loss test macro, including variable frequency pump, electric Proportion valve, regulating valve, fluid flowmeter, gas flowmeter, pressure transmitter of the product pressures such as check valve, Venturi tube loss；It can realize that liquid channel system measurement and air-channel system are measured by the movement of triple valve, measurement range is wide；By two-stage pid algorithm to the comprehensively control of variable frequency pump and regulating valve, and successive adjusting of the pid algorithm to electric Proportion valve and regulating valve, system pressure and flow can be automatically adjusted to setup pressure value and setting flow value, to which true, accurate simulation check valve class surveys the application environment of part, and overcomes and manually adjust the long defect of short time consumption；By the rational deployment of equipment, so that the liquid medium in pipeline can flow back to medium box and noresidue after the completion of test, subsequent air-channel system will not be tested and be had an impact.
Description
Technical field
The utility model relates to fluid device test macros, and in particular to the products such as a kind of test check valve, Venturi tube
The test macro of the pressure loss.
Background technique
Automobile industry applies the equipment such as many check valves, Venturi tube, in order to further increase the performance of automobile, needs
The equipment such as check valve and Venturi tube are tested for the property, understand such product under practical application pressure and flow status
Pressure loss value, to provide data supporting for product optimization.On Vehicles Collected from Market, this type product is not yet found.
Utility model content
The purpose of the utility model is to provide a kind of pressure losses suitable for check valve, Venturi tube product to test system
System, which is capable of providing liquid channel system test and air system tests two kinds of test functions, can be automatically adjusted to set
Pressure loss test is carried out under the cycling condition of constant-pressure and setting flow.
The technical solution of the utility model is: a kind of pressure loss test macro, including liquid medium case, variable frequency pump, liquid
Flowmeter body, triple valve A, triple valve B, test tube A, test tube B, test tube C, regulating valve, filter, pressure reducing valve, pressurized tank, electrical ratio
Example valve, gas flowmeter pass through connecting pipe connection between equipment.
Further, the test tube A, test tube B and test tube C by connecting pipe respectively with pressure transmitter A, pressure inverting
Device B and pressure transmitter C connection.
Further, by controlling the on-off of the triple valve A and triple valve B, so that pressure loss test macro is realized
The switching of liquid channel system measurement and air-channel system measurement.
Further, when the pressure loss test macro is measured for liquid channel system, triple valve A and triple valve B are in
Off-state, variable frequency pump extract liquid medium out from liquid medium case, followed by fluid flowmeter, triple valve A, test tube A,
It after check valve, test tube B, regulating valve, triple valve B, returns in liquid medium box, forms closed cycle；
Further, when the pressure loss test macro is measured for liquid channel system, control system is according to pressure inverting
Device a-signal feedback carries out pressure adjusting to variable frequency pump with pid algorithm, as control inner ring；According to the signal of fluid flowmeter
Feedback carries out flow adjusting to regulating valve with pid algorithm, as control outer ring；Control inner ring acts on simultaneously with control outer ring,
System actual pressure and flow are automatically adjusted to setup pressure value and setting flow value, meet the pressure loss measurement item for surveying part
Part.At this point, read the data of pressure transmitter A and pressure transmitter B and subtract, you can get it check valve setting pressure,
Set the pressure loss value under flow.
Further, when the pressure loss test macro is measured for air-channel system, triple valve A and triple valve B are in
On-state, compressed air is successively through filter, pressure reducing valve, pressurized tank, electric Proportion valve, gas flowmeter, triple valve A, survey
Pipe A, it is emptied after surveying part, test tube B, regulating valve, triple valve B, forms open circulation.
Further, when the pressure loss test macro is measured for air-channel system, control system is first according to pressure
The signal of transmitter A is fed back, and carries out pressure adjusting to electric Proportion valve with pid algorithm, system pressure is adjusted to setting and is pressed
Power；Further according to the signal feedback of gas flowmeter, flow adjusting is carried out to regulating valve with pid algorithm, flow system flow is adjusted
To setting flow, meet the pressure loss measuring condition for surveying part.At this point, the data of pressure transmitter A, pressure transmitter B are read,
The pressure loss value of check valve or Venturi tube under setting pressure, setting flow that you can get it.
Further, when the pressure loss test macro is measured for air-channel system, test tube C can be with Venturi tube branch
Connection, for measuring the pressure of Venturi branch.
Further, test tube A, test tube B and test tube C are vertically-mounted；The installation site of triple valve A is lower than the water inlet of test tube A
Mouthful, it is higher than fluid flowmeter；The installation site of triple valve B is lower than the water outlet of test tube B, is higher than liquid medium case；When pressure is damaged
It loses after test macro completes liquid channel system test, the liquid medium in pipeline can flow back to medium box and noresidue, will not be to rear
Continuous air-channel system test has an impact.
The beneficial effects of the utility model are: the utility model provides a kind of pressure loss test macro, pass through triple valve
On-off realize liquid channel system measurement and air-channel system measurement function switch, pass through test tube C realize Venturi tube branch drive test
Amount, measurement range are wide；With inner and outer ring pid algorithm to the comprehensively control of variable frequency pump and regulating valve, gas circuit measurement when fluid path measures
Shi Yunyong pid algorithm successively adjusts electric Proportion valve and regulating valve, can automatically adjust system pressure and flow
To setup pressure value and setting flow value, so that really, accurately simulation check valve class surveys the application environment of part, and hand is overcome
It is dynamic to adjust the long defect of short time consumption；By the rational deployment of equipment, so that energy after the completion of test of the liquid medium in pipeline
It enough flows back to medium box and noresidue, subsequent air-channel system will not be tested and be had an impact.
Detailed description of the invention
Fig. 1 is the connection type that pressure loss test macro is suitable for liquid medium check valve,
Fig. 2 is the connection type that pressure loss test macro is suitable for air dielectric check valve,
Fig. 3 is the connection type that pressure loss test macro is suitable for air dielectric Venturi tube,
Fig. 4 is the space layout of pressure loss test macro equipment component
In figure: 1. liquid medium casees；2. variable frequency pump；3. fluid flowmeter；4-1. triple valve A；4-2. triple valve B；5-1.
Test tube A；5-2. test tube B；5-3. test tube C；6. regulating valve；7-1. pressure transmitter A；7-2. pressure transmitter B；7-3. pressure becomes
Send device C；8. filter；9. pressure reducing valve；10. pressurized tank；11. electric Proportion valve；12. gas flowmeter；13. connecting pipe；14.
Venturi tube；15. check valve.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
Pressure loss test macro described in the utility model passes through the movement of triple valve A4-1 and triple valve B4-2, has respectively
Standby liquid channel system measurement and air-channel system measure two kinds of functions.As shown in Figure 1, triple valve A4-1 and triple valve B4-2 is in power-off
State, the pressure loss test macro are used to test the pressure loss of 15 product of check valve under liquid medium, mainly include liquid
Body medium box 1, variable frequency pump 2, fluid flowmeter 3, test tube A5-1, test tube B5-2, regulating valve 6, pressure transmitter A7-1, pressure become
The equipment such as device B7-2 and pressure transmitter C7-3 are sent, are connected between each equipment by connecting pipe 13.The liquid medium case 1 is used
In media such as storage water, coolant liquids, the variable frequency pump 2 extracts liquid medium out from liquid medium case 1, followed by liquid flow
After meter 3, triple valve A4-1, test tube A5-1, check valve 15, test tube B5-2, regulating valve 6, triple valve B4-2, liquid medium is returned
In case 1, closed cycle is formed.The pressure transmitter A7-1, pressure transmitter B7-2 are respectively used to measurement test tube A5-1 connection
The pressure value at place and the junction test tube B5-2；Measuring signal is fed back to control by the pressure transmitter A7-1, fluid flowmeter 3
System, control system carry out comprehensively control with regulating valve 6 to the variable frequency pump 2 by two-stage pid algorithm, are automatically adjusted to set
Pressure value and setting flow value, meet the pressure loss measuring condition of check valve；The test tube A5-1, test tube B5-2 pass through connection
Pipeline 13 is connect with check valve 15, is read the data of pressure transmitter A7-1 and pressure transmitter B7-2 and is subtracted, can obtain
Pressure loss value of the check valve 15 under setting pressure, setting flow out.
As shown in Figures 2 and 3, triple valve A4-1 and triple valve B4-2 is in energized state, pressure loss test system
The pressure loss united for testing the type products such as check valve 15 under air dielectric, Venturi tube 14 mainly includes filter 8,
Pressurizing valve 9, pressurized tank 10, electric Proportion valve 11, gas flowmeter 12, test tube A5-1, test tube B5-2, test tube C5-3, regulating valve
6, pressure transmitter A7-1, the equipment such as pressure transmitter B7-2 and pressure transmitter C7-3 pass through connecting pipe between each equipment
13 connections.Compressed gas initially enters filter 8 and is purified, then is adjusted to system allowable pressure range by pressure reducing valve 9, it
Enter pressurized tank 10 afterwards, provides sufficient, stable gas source for test macro, flow through electric Proportion valve 11, gas flowmeter 12, three
Port valve A4-1, test tube A5-1 are emptied after test tube B5-2, regulating valve 6, triple valve AB-2.The pressure transmitter A7-1, pressure become
It send device B7-2 and pressure transmitter C7-3 to be respectively used to the measurement junction test tube A5-1, the junction test tube B5-2 and test tube C5-3 to connect
Connect the pressure value at place；Measuring signal is fed back to control system, control system by the pressure transmitter A7-1, gas flowmeter 12
Electric Proportion valve 11 is adjusted to setting pressure by pid algorithm first, then adjusts regulating valve 6 with pid algorithm and arrives setting flow, it is full
The pressure loss measuring condition of sufficient check valve and Venturi tube；The test tube A5-1, test tube B5-2 pass through connecting pipe 13 and list
It is connected to valve 15, the data for reading pressure transmitter A7-1 and pressure transmitter B7-2 simultaneously subtract, you can get it check valve 15
Pressure loss value under setting pressure, setting flow；The test tube A5-1, test tube B5-2, test tube C5-3 pass through connecting pipe
13 connect with Venturi tube 14, read the data of pressure transmitter A7-1, pressure transmitter B7-2 and pressure transmitter C7-3, i.e.,
It can obtain Venturi tube of the Venturi tube 14 under the pressure loss value and Venturi effect under setting pressure, setting flow
The pressure difference of air inlet and branch.
As shown in figure 4, the test tube A5-1 of pressure loss test macro described in the utility model, test tube B5-2, test tube C5-3
It is vertically-mounted；The installation site of triple valve A4-1 is lower than the water inlet of test tube A5-1, is higher than fluid flowmeter 3；Triple valve B4-2
Installation site be lower than test tube B5-2 water outlet, be higher than liquid medium case 1.When pressure loss test macro completes liquid medium
After test, liquid medium in pipeline can flow back fluid medium box 1 and noresidue, subsequent air-channel system will not be tested and be produced
It is raw to influence.
Although the utility model discloses as above, the utility model is not limited to this.Anyone skilled in the art,
It does not depart from the spirit and scope of the utility model, can make various changes or modifications, therefore the protection scope of the utility model
It should be defined by the scope defined by the claims..
Claims (3)
1. a kind of pressure loss test macro, including liquid medium case (1), variable frequency pump (2), fluid flowmeter (3), triple valve A
(4-1), triple valve B (4-2), test tube A (5-1), test tube B (5-2), test tube C (5-3), regulating valve (6), filter (8), decompression
Valve (9), pressurized tank (10), electric Proportion valve (11), gas flowmeter (12) are connected by connecting pipe (13) between equipment
It connects；The test tube A (5-1), test tube B (5-2) and test tube C (5-3) by connecting pipe (13) respectively with pressure transmitter A (7-
1), pressure transmitter B (7-2) and pressure transmitter C (7-3) connection；Test tube A (5-1), test tube B (5-2) and test tube C (5-3) are perpendicular
Straight installation；The installation site of triple valve A (4-1) is lower than the water inlet of test tube A (5-1), is higher than fluid flowmeter (3)；Triple valve B
The installation site of (4-2) is lower than the water outlet of test tube B (5-2), is higher than liquid medium case (1).
2. a kind of pressure loss test macro as described in claim 1, it is characterised in that: by controlling the triple valve A (4-1)
With the on-off of triple valve B (4-2) so that pressure loss test macro realize liquid channel system measurement and air-channel system measurement cut
It changes.
3. a kind of pressure loss test macro as claimed in claim 2, it is characterised in that: the test tube C (5-3) and Venturi tube
Branch connection, for measuring the pressure of Venturi branch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821303901.8U CN208568267U (en) | 2018-08-13 | 2018-08-13 | A kind of pressure loss test macro |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821303901.8U CN208568267U (en) | 2018-08-13 | 2018-08-13 | A kind of pressure loss test macro |
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| Publication Number | Publication Date |
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| CN208568267U true CN208568267U (en) | 2019-03-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982090A (en) * | 2018-08-13 | 2018-12-11 | 江苏大学镇江流体工程装备技术研究院 | A kind of pressure loss test macro and its test method |
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2018
- 2018-08-13 CN CN201821303901.8U patent/CN208568267U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982090A (en) * | 2018-08-13 | 2018-12-11 | 江苏大学镇江流体工程装备技术研究院 | A kind of pressure loss test macro and its test method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: ZHENJIANG JIANGSU UNIVERSITY ENGINEERING TECHNOLOGY Research Institute Assignor: ZHENJIANG INSTITUTE OF FLUID ENGINEERING EQUIPMENT TECHNOLOGY, JIANGSU University Contract record no.: X2023320000167 Denomination of utility model: A Pressure Loss Testing System Granted publication date: 20190301 License type: Common License Record date: 20230710 |