CN208672287U - A kind of pressure drop testing stand - Google Patents
A kind of pressure drop testing stand Download PDFInfo
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- CN208672287U CN208672287U CN201820968261.6U CN201820968261U CN208672287U CN 208672287 U CN208672287 U CN 208672287U CN 201820968261 U CN201820968261 U CN 201820968261U CN 208672287 U CN208672287 U CN 208672287U
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Abstract
The utility model relates to auto parts and components detection technique field, especially a kind of pressure drop testing stand.The pressure drop testing stand includes flow pressure-difference detection device.Flow pressure-difference detection device includes inlet tube, outlet tube, differential pressure pickup, flowmeter and isothermal liquid medium box.Inlet tube and the outlet tube with the both ends of tested pipe fitting for connecting respectively, differential pressure pickup is used to detect the pressure difference at tested pipe fitting both ends, flowmeter is used to measure the flow by being tested pipeline, isothermal liquid medium box is used for equipped with liquid medium and is capable of providing liquid medium stationary temperature, inlet tube or the outlet tube are equipped with the pump for conveying liquid medium, inlet tube is equipped with isocon, and the isocon is equipped with the regulating valve for the flow of liquid medium in regulation pipe.In the present invention, in the both ends connection differential pressure pickup and flowmeter of tested pipe fitting, the flow and pressure difference of tested pipe fitting can be tested respectively, verify whether impurity quality in the pipe of tested pipe fitting meets test stone.
Description
Technical field
The utility model relates to auto parts and components detection technique field, especially a kind of pressure drop testing stand.
Background technique
Automobile pipeline detection is the important component of vehicle fatigue detecting, with the raising of national economy level, to out
Capable safely, quickly and comfortably requiring is higher and higher, also correspondinglys increase to the testing requirements of vehicle pipeline and components.
State's patent publication No. is a kind of pressure-drop in pipeline experimental rig of CN206330744U as shown in figure 1, including equipped with liquid
Body medium and the isothermal liquid media slot that can provide liquid medium steady temperature, the isothermal liquid media slot pass through the first pipeline
The plunger pump inlet driven with power mechanism is connected to, and the outlet of plunger pump passes through the import of the second pipeline and tested pipeline sample
It is connected to, first flow sensor and first pressure sensor is installed on second pipeline, the tested pipeline sample goes out
Mouth is connected to by third pipeline with isothermal liquid media slot, is installed on tested pipeline sample export end on the third pipeline
There are second flow sensor and second pressure sensor.A kind of pressure-drop in pipeline experimental rig structure of the utility model is simple, operation
Fluid-pressure drop test that is convenient, being able to satisfy in a variety of condition auto parts and components pipelines, and can be quickly to a variety of auto parts and components pipes
Road carries out internal pressure drops detection.
The flow of the pressure-drop in pipeline experimental rig is to control the revolving speed realization control of plunger pump by variable-frequency motor and try
Verification certificate one.
Utility model content
The utility model aim is to provide a kind of pressure drop examination for being able to carry out a variety of tests without specific motor and pump
Test platform.
In order to achieve the above-mentioned advantages, pressure drop testing stand provided by the utility model includes flow pressure-difference detection device, the flow
Pressure test device includes inlet tube, outlet tube, differential pressure pickup, flowmeter and isothermal liquid medium box；
The inlet tube and the outlet tube with the both ends of tested pipe fitting for connecting respectively；
The differential pressure pickup is used to detect the pressure difference at tested pipe fitting both ends；
The flowmeter is used to measure the flow by being tested pipeline；
The isothermal liquid medium box is used for equipped with liquid medium and is capable of providing liquid medium steady temperature；
The inlet tube or the outlet tube are equipped with the pump for conveying liquid medium；
The inlet tube is equipped with isocon, and the isocon is equipped with the adjusting for the flow of liquid medium in regulation pipe
Valve.
In one embodiment of the utility model, the nozzle of the inlet tube and/or the outlet tube is equipped with valve
Door.
In one embodiment of the utility model, the inlet tube and the outlet tube are equipped with three-way ball valve, the threeway
Ball valve is used for the inlet and outlet of tap water.
In one embodiment of the utility model, the inlet tube is additionally provided with piping filter.
In one embodiment of the utility model, the liquid medium case is equipped with filling opening.
There is the liquidometer for measurement in one embodiment of the utility model, in the liquid medium case and be used for
Prevent liquid medium level excessively high or too low floating ball alarm.
In one embodiment of the utility model, the regulating valve and pump connect with the control system of pressure drop testing stand
It connects.
In one embodiment of the utility model, the liquid medium case is equipped with leakage fluid dram, which is equipped with manual
Ball valve.
In one embodiment of the utility model, the differential pressure pickup and the flowmeter pass through respectively data line with
The control system connection.
In one embodiment of the utility model, the pressure drop testing stand, which is equipped with, accommodates the flow pressure-difference detection device
With the shell of the control system.
In the present invention, in the both ends connection differential pressure pickup and flowmeter of tested pipe fitting, fixed stream can be set
Magnitude detects the pressure difference at pipe fitting both ends, can also set the flow value at the pressure difference test pipe fitting both ends at detection pipe fitting both ends.It tests
Demonstrate,prove whether impurity quality in the pipe of tested pipe fitting meets test stone.
Detailed description of the invention
Fig. 1 show a kind of structural schematic diagram of existing pressure-drop in pipeline experimental rig.
Fig. 2 show the structural schematic diagram of the pressure drop testing stand of the utility model first embodiment.
Fig. 3 show the main view of the shell of the pressure drop testing stand of Fig. 2.
Fig. 4 show the structural schematic diagram of the flow pressure-difference detection device of the pressure drop testing stand of Fig. 2.
Fig. 5 show the structural schematic diagram of the control system of the pressure drop testing stand of Fig. 2.
Specific embodiment
Further to illustrate that the utility model is the technical means and efficacy reaching predetermined purpose of utility model and being taken,
Below in conjunction with attached drawing and preferred embodiment, to according to the utility model proposes specific embodiment, structure, feature and its effect,
Detailed description is as follows.
Fig. 2-3 is referred to, the pressure drop testing stand of the utility model first embodiment includes flow pressure-difference detection device 1, control
System 2, pump 3, gate valve 4, three-way ball valve 5, piping filter 6, manual ball valve 7 and shell 10 processed.
Flow pressure-difference detection device 1, gate valve 4 are mounted on the left side of shell 10, and control system 2 is mounted on the right side of shell 10
Side, pump 3, three-way ball valve 5, piping filter 6 and manual ball valve 7 are mounted on the bottom of shell 10.
Fig. 4 is referred to, flow pressure-difference detection device 1 includes inlet tube 11, outlet tube 12, differential pressure pickup 13, flowmeter
14 and isothermal liquid medium box 15.
One end of inlet tube 11 and outlet tube 12 is connect with the both ends of tested pipe fitting 8 respectively, and the other end and isothermal liquid are situated between
Matter case 15 is connected to.Inlet tube 11 or outlet tube 12 are equipped with pump 3, and pump 3 is for conveying liquid medium.
Inlet tube 11 is equipped with isocon 110, and one end of isocon 110 connect with isothermal liquid medium box 15, the other end and
The entrance of pump 3 or the inlet tube 11 of outlet section connect.Flow of the isocon 110 in inlet tube 11 will be extra when excessive
Flow be directed back to isothermal liquid medium box 15.
Isocon 110 is equipped with regulating valve 110a, and regulating valve 110a passes through shunting by the way that the aperture of control valve is adjustable
The flow of liquid medium in pipe 110.
Preferably, regulating valve 110a be electric control valve, electric control valve by receive control system signal (such as: 4~
20mA) drive the valve to change the flow of liquid medium in the sectional area size control pipeline between spool and valve seat, realize from
Dynamicization regulatory function.Have clear advantage compared with traditional pneumatic control valve: electric control valve energy conservation is (only at work
Consume electric energy), environmentally friendly (non-carbon-emitting) is quickly and expediently installed (without the complicated gentle pump work station of pneumatic line).
The nozzle that inlet tube 11 and/or outlet tube 12 are connect with tested pipe fitting 8 is equipped with gate valve 4.Replacing tested pipe fitting 8
When, closing gate valve 4 can block the outflow of liquid medium, keep replacement process convenient, fast.
Between the pump 3 and isothermal liquid medium box 15 of inlet tube 11 and the flowmeter 14 of outlet tube 12 and isothermal liquid medium
Three-way ball valve 5 is equipped between case 15.Three-way ball valve 5 is used for the inlet and outlet of tap water.
Inlet tube 11 is additionally provided with piping filter 6.Piping filter 6 is located between pump 3 and three-way ball valve 5.Pipeline mistake
Filter 6 is mounted on pipeline the larger solid impurity that can be removed in liquid medium, make machinery equipment (including compressor, pump etc.),
Instrument can be worked normally and be operated, and reach stabilizing technical processes, the effect to guarantee safe production.
Inlet tube 11 also sets up manual ball valve 7, and manual ball valve 7 is between three-way ball valve 5 and isothermal liquid medium box 15.
When pipeline is cleaned in off-test, manual ball valve 7 can be closed and disconnected between inlet tube 11 and isothermal liquid medium box 15
Connection, prevent cleaning solution flow into isothermal liquid medium box 15 in.7 structure of manual ball valve is simple, small in size, light-weight, operation
Conveniently, opening and closing controls rapidly, convenient for remote.
Differential pressure pickup 13 is used to detect the pressure difference at tested 8 both ends of pipe fitting.Preferably, using the model of the gloomy promise in Guangzhou
The differential pressure pickup of 5KPa, 4-20mA.
Flowmeter 14 is used to measure the flow by being tested pipeline.
Preferably, gear meter is selected.Gear meter is also Fuda flowmeter, and gear meter measuring accuracy is high.
Isothermal liquid medium box 15 is used for equipped with liquid medium and is capable of providing liquid medium stationary temperature.Specifically
, liquid medium is urea solution.
Isothermal liquid medium box 15 is equipped with filling opening 150 and drain pipe 153.Have in isothermal liquid medium box 15 for surveying
The liquidometer 151 of amount and for preventing liquid medium level excessively high or too low floating ball alarm 152.
Floating ball alarm 152 will be sounded an alarm when the liquid level of liquid medium is higher than 900mm or lower than 260mm.
Leakage fluid dram 153 is equipped with manual ball valve 7.It is openable when the liquid medium level in isothermal liquid medium box 15 is excessively high
Manual ball valve 7 discharges liquid medium.
Fig. 5 is referred to, control system 2 includes input module, controller and and output module.
Input module is mouse, keyboard, display.
Output module is printer, display.
Display is convenient to check during the test to test procedure parameter real-time display.
Regulating valve 110a and pump 3 are connect with the controller of control system 2 respectively.
Differential pressure pickup 13 and flowmeter 14 are connect by data line with the controller of control system 2 respectively.
Shell 10 is aluminium frame structure.Shell 10 has workbench 101, drawer 102, locker 103.A left side for shell 10
Side is equipped with for the through-hole 104 by inlet tube and outlet tube.
The technical parameter of pressure drop testing stand:
(1) maximum measurement pressure differential range: 2KPa.
(2) test flow: 0.5-1L/Min is adjustable manually.
(3) test test tubular length: 800-8000mm (folds to install).
The working principle of pressure drop testing stand:
Liquid medium in isothermal liquid medium box 15 is conveyed from pump 3 to inlet tube, and liquid medium first passes through filter pipeline
Device 6 is filtered, and reaches the requirement of test, and when then liquid medium passes through flowmeter 14, the meeting of flowmeter 14 will be in pipe
Real-time traffic information is fed back into controller, and controller can believe the flow information of feedback and the flow information or pressure difference of setting
Breath carries out analysis comparison, if flow is excessive or pressure difference is excessively high, controller will control the aperture of electric control valve 110a, into
Liquid medium in liquid pipe 11 is understood some and is returned in isothermal liquid medium box 15 by isocon 110；If flow is very few
Or pressure difference is too low, the valve that controller may turn off electric control valve 110a controls pump 3 again and increases conveying capacity, so many reduction
Add the flow or pressure difference until reaching setting.Last controller can be by the data transmission of flowmeter and differential pressure pickup to output
Module.
After the test, the manual ball valve 7 between inlet tube 11 and isothermal liquid medium box 15 is switched to closed state, cut
The connection direction of three-way ball valve is changed, running water pipe is connected to, 3, inlet tube 11, outlet tube 12 and stream will be pumped using the pressure of tap water
Liquid medium in meter 14 is rinsed well.
In the present invention, the both ends connection differential pressure pickup 13 and flowmeter 14 for being tested pipe fitting 8 connect with control system 2
It connects, the pressure test under different flow can be carried out to test pipe fitting；Stream under different pressure differences can also be carried out to test pipe fitting
Amount test.
Regulating valve 110a and pump 3 are connect with the controller of control system 2 respectively, and during the test, flow can pass through
Valve is arbitrarily adjusted, and can be kept constant.
It is equipped with isocon 110 in inlet tube 11, isocon 110 is equipped with electric control valve, can be to the liquid in inlet tube 11
Body medium real-time monitoring, without specific pump and motor.
By the pressure drop testing stand of the utility model, it can verify whether impure quality in the pipe of tested pipe fitting 8 meets
Test stone.
More than, it is only the preferred embodiment of the utility model, limit in any form not is made to the utility model
System, although the utility model has been disclosed with preferred embodiment as above, is not intended to limit the utility model, any to be familiar with sheet
Technical professional is not departing within the scope of technical solutions of the utility model, when the technology contents work using the disclosure above
A little change or it is modified to the equivalent embodiment of equivalent variations out, but all without departing from the content of the technical scheme of the utility model, according to
According to the technical essence of the utility model any simple modification, equivalent variations and modification to the above embodiments, still fall within
In the range of technical solutions of the utility model.
Claims (10)
1. a kind of pressure drop testing stand, which is characterized in that including flow pressure-difference detection device, the flow pressure-difference detection device includes
Inlet tube, outlet tube, differential pressure pickup, flowmeter and isothermal liquid medium box；
The inlet tube and the outlet tube with the both ends of tested pipe fitting for connecting respectively；
The differential pressure pickup is used to detect the pressure difference at tested pipe fitting both ends；
The flowmeter is used to measure the flow by being tested pipeline；
The isothermal liquid medium box is used for equipped with liquid medium and is capable of providing liquid medium steady temperature；
The inlet tube or the outlet tube are equipped with the pump for conveying liquid medium；
The inlet tube is equipped with isocon, and the isocon is equipped with the regulating valve for the flow of liquid medium in regulation pipe.
2. pressure drop testing stand according to claim 1, which is characterized in that the pipe of the inlet tube and/or the outlet tube
Mouth is equipped with valve.
3. pressure drop testing stand according to claim 1, which is characterized in that the inlet tube and the outlet tube are respectively equipped with
Three-way ball valve, the three-way ball valve are used for the inlet and outlet of tap water.
4. pressure drop testing stand according to claim 1, which is characterized in that the inlet tube is additionally provided with piping filter.
5. pressure drop testing stand according to claim 1, which is characterized in that the liquid medium case is equipped with filling opening.
6. pressure drop testing stand according to claim 1, which is characterized in that have in the liquid medium case for measurement
Liquidometer and for preventing liquid medium level excessively high or too low floating ball alarm.
7. pressure drop testing stand according to claim 1, which is characterized in that the regulating valve and pump with pressure drop testing stand
Control system connection.
8. pressure drop testing stand according to claim 7, which is characterized in that the liquid medium case is equipped with leakage fluid dram, the row
Liquid mouth is equipped with manual ball valve.
9. pressure drop testing stand described in any one of -8 according to claim 1, which is characterized in that the differential pressure pickup and institute
It states flowmeter and passes through data line respectively and connect with the control system.
10. pressure drop testing stand described in any one of -8 according to claim 1, which is characterized in that the pressure drop testing stand is set
There is the shell for accommodating the flow pressure-difference detection device and the control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820968261.6U CN208672287U (en) | 2018-06-22 | 2018-06-22 | A kind of pressure drop testing stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820968261.6U CN208672287U (en) | 2018-06-22 | 2018-06-22 | A kind of pressure drop testing stand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208672287U true CN208672287U (en) | 2019-03-29 |
Family
ID=65824649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820968261.6U Active CN208672287U (en) | 2018-06-22 | 2018-06-22 | A kind of pressure drop testing stand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208672287U (en) |
-
2018
- 2018-06-22 CN CN201820968261.6U patent/CN208672287U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 317000 188, Chuang Road, Jiangnan street, Taizhou, Zhejiang. Patentee after: Zhejiang fuming Technology Co.,Ltd. Address before: 317000 188, Chuang Road, Jiangnan street, Taizhou, Zhejiang. Patentee before: ZHEJIANG FUMING INDUSTRIAL MACHINERY Co.,Ltd. |