CN104236814A - Valve negative pressure detecting system - Google Patents
Valve negative pressure detecting system Download PDFInfo
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- CN104236814A CN104236814A CN201310238934.4A CN201310238934A CN104236814A CN 104236814 A CN104236814 A CN 104236814A CN 201310238934 A CN201310238934 A CN 201310238934A CN 104236814 A CN104236814 A CN 104236814A
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- valve
- testing
- negative pressure
- pressure system
- mould
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Abstract
The invention discloses a valve negative pressure detecting system. The valve negative pressure detecting system comprises a vacuum pressure sensor, a testing base, a positioning guide block, a valve, a testing cavity and a die. The vacuum pressure sensor is connected with the testing base, the die is arranged on the testing base, and the testing cavity is formed in the die. One end of the valve is located in the testing cavity, and the other end of the valve penetrates through the die and extends into the testing base. The positioning guide block is located on the circumference of the middle of the valve. According to the valve negative pressure detecting system, a detecting device only needs to be calibrated one time according to different detected valves, calibration can be stored in a PLC in the form of parameters so that the valve negative pressure detecting system can test the different valves conveniently, online control can be conveniently carried out in real time according to the different working conditions, and the valve negative pressure detecting system is especially suitable for industrial control.
Description
Technical field
The present invention relates to air pressure detection technique field, be specifically related to a kind of valve detection of negative pressure system.
Background technology
The sealing property of valve directly affects the important performance such as output power, oil consumption of engine.At present, mainly contain damp process and dry type leak detection method in conventional air-tightness detection method, and dry type detection method mainly contains differential pressure measuring method etc., wet type detection method is relatively backward, is unfavorable for realizing industrial automation.Dry type detects rule and commonly uses air or nitrogen as detection medium.Differential pressure measuring method needs standard component usually, and it is unfavorable for the detection to different air valve.
Summary of the invention
Instant invention overcomes the deficiencies in the prior art, a kind of valve detection of negative pressure system being convenient to control is provided.
Consider the problems referred to above of prior art, according to an aspect of the present invention, for solving above-mentioned technical matters, the present invention by the following technical solutions:
A kind of valve detection of negative pressure system, comprise vacuum pressure sensor, testing base, positioning and guiding block, valve, test chamber and mould, described vacuum pressure sensor is connected with described testing base, and described testing base is provided with mould, and described mould is provided with test chamber; Described valve one end is positioned at test chamber, and the other end runs through mould and stretches in testing base, and described guide-localization block to be positioned in the middle part of described valve circumferentially.
In order to realize the present invention better, further technical scheme is:
According to one embodiment of present invention, the circumference cooperation place of described valve one end and described test chamber inwall is provided with seal face.
According to one embodiment of present invention, described testing base is provided with a cavity, described mould is provided with a boss coordinated with described cavity, described testing base is connected with the cooperation of boss by cavity with mould.
According to one embodiment of present invention, also comprise the first testing and control valve, described first testing and control valve is connected with described vacuum pressure sensor.
According to one embodiment of present invention, also comprise demarcation cylinder, described demarcation cylinder is connected with described first testing and control valve.
According to one embodiment of present invention, also comprise the second testing and control valve, described second testing and control valve is connected with described vacuum pressure sensor.
According to one embodiment of present invention, also comprise pressure difference transmitter, described pressure difference transmitter is connected with described second testing and control valve.
According to one embodiment of present invention, also comprise vacuum gas tank, described vacuum gas tank is connected between described second testing and control valve and pressure difference transmitter.
According to one embodiment of present invention, also comprise vacuum pump, described vacuum pump is connected with described vacuum gas tank.
The present invention can also be:
According to one embodiment of present invention, also comprise sound suppressor, described sound suppressor is connected with described vacuum pump.
Compared with prior art, one of beneficial effect of the present invention is:
Valve detection of negative pressure system of the present invention, for different tested valves, after only needing once to demarcate pick-up unit, namely can test different valves to facilitate stored in PLC the form of parameter; Be convenient to carry out On-line Control to different operating modes in real time, be particularly suitable for Industry Control.
Accompanying drawing explanation
In order to clearer explanation present specification embodiment or technical scheme of the prior art, below the accompanying drawing used required in the description to embodiment or prior art is briefly described, apparently, the accompanying drawing that the following describes is only the reference to some embodiments in present specification, for those skilled in the art, when not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 shows valve detection of negative pressure system architecture schematic diagram according to an embodiment of the invention.
Wherein, the name corresponding to the Reference numeral in accompanying drawing is called:
101-vacuum pressure sensor, 102-testing base, 103-positioning and guiding block, 104-valve, 105-test chamber, 106-mould, 107-seal face, 108-first testing and control valve, 109-demarcates cylinder, 110-second testing and control valve, 111-pressure difference transmitter, 112-vacuum gas tank, 113-vacuum pump, 114-sound suppressor.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1
Fig. 1 shows valve detection of negative pressure system architecture schematic diagram according to an embodiment of the invention.A kind of valve detection of negative pressure system as shown in Figure 1, comprise vacuum pressure sensor 101, testing base 102, positioning and guiding block 103, valve 104, test chamber 105 and mould 106, described vacuum pressure sensor 101 is connected with described testing base 102, described testing base 102 is provided with mould 106, described mould 106 is provided with test chamber 105; Described valve 104 one end is positioned at test chamber 105, and the other end runs through mould 106 tool and stretches in testing base 102, and described guide-localization block 103 to be positioned in the middle part of described valve 104 circumferentially.
The circumference cooperation place of described valve 104 one end and described test chamber 105 inwall is provided with seal face 107.
Described testing base 102 is provided with a cavity, described mould 106 is provided with a boss coordinated with described cavity, described testing base 102 is connected with the cooperation of boss by cavity with mould 106.
Also comprise the first testing and control valve 108, described first testing and control valve 108 is connected with described vacuum pressure sensor 101.
Also comprise and demarcate cylinder 109, described demarcation cylinder 109 is connected with described first testing and control valve 108.
Also comprise the second testing and control valve 110, described second testing and control valve 110 is connected with described vacuum pressure sensor 101.
Also comprise pressure difference transmitter 111, described pressure difference transmitter 111 is connected with described second testing and control valve 110.
Also comprise vacuum gas tank 112, described vacuum gas tank 112 is connected between described second testing and control valve 110 and pressure difference transmitter 111.
Also comprise vacuum pump 113, described vacuum pump 113 is connected with described vacuum gas tank 112.
Also comprise sound suppressor 114, described sound suppressor 114 is connected with described vacuum pump 113.
Embodiment 2
The present embodiment adopts detection of negative pressure method, when valve is put in mould, valve and die face form seal face, now, second testing and control valve is in left position, test chamber forms vacuum, and after several seconds, the second testing and control valve dead electricity is in right position, vacuum pressure sensor starts the vacuum pressure tested in test chamber, and return test value carry out computing in PLC, when next valve is put in testing base, start the test of a new round.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiment, identical similar portion cross-reference between each embodiment.
Although with reference to multiple explanatory embodiment of the present invention, invention has been described here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and embodiment, these amendments and embodiment will drop within spirit disclosed in the present application and spirit.
Claims (10)
1. a valve detection of negative pressure system, it is characterized in that, comprise vacuum pressure sensor, testing base, positioning and guiding block, valve, test chamber and mould, described vacuum pressure sensor is connected with described testing base, described testing base is provided with mould, described mould is provided with test chamber; Described valve one end is positioned at test chamber, and the other end runs through mould and stretches in testing base, and described guide-localization block to be positioned in the middle part of described valve circumferentially.
2. valve detection of negative pressure system according to claim 1, is characterized in that, the circumference cooperation place of described valve one end and described test chamber inwall is provided with seal face.
3. valve detection of negative pressure system according to claim 1, it is characterized in that, described testing base is provided with a cavity, described mould is provided with a boss coordinated with described cavity, described testing base is connected with the cooperation of boss by cavity with mould.
4. valve detection of negative pressure system according to claim 1, is characterized in that, also comprises the first testing and control valve, and described first testing and control valve is connected with described vacuum pressure sensor.
5. valve detection of negative pressure system according to claim 5, is characterized in that, also comprise demarcation cylinder, and described demarcation cylinder is connected with described first testing and control valve.
6. valve detection of negative pressure system according to claim 1, is characterized in that, also comprises the second testing and control valve, and described second testing and control valve is connected with described vacuum pressure sensor.
7. valve detection of negative pressure system according to claim 6, is characterized in that, also comprise pressure difference transmitter, and described pressure difference transmitter is connected with described second testing and control valve.
8. valve detection of negative pressure system according to claim 7, is characterized in that, also comprise vacuum gas tank, and described vacuum gas tank is connected between described second testing and control valve and pressure difference transmitter.
9. valve detection of negative pressure system according to claim 8, is characterized in that, also comprise vacuum pump, and described vacuum pump is connected with described vacuum gas tank.
10. valve detection of negative pressure system according to claim 9, it is characterized in that, also comprise sound suppressor, described sound suppressor is connected with described vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310238934.4A CN104236814A (en) | 2013-06-17 | 2013-06-17 | Valve negative pressure detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310238934.4A CN104236814A (en) | 2013-06-17 | 2013-06-17 | Valve negative pressure detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104236814A true CN104236814A (en) | 2014-12-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310238934.4A Pending CN104236814A (en) | 2013-06-17 | 2013-06-17 | Valve negative pressure detecting system |
Country Status (1)
| Country | Link |
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| CN (1) | CN104236814A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108051160A (en) * | 2018-01-02 | 2018-05-18 | 吉林大学 | A kind of vacuum cup sealing propertytest testing stand |
| CN111693227A (en) * | 2019-03-13 | 2020-09-22 | 中国船舶重工集团公司第七一一研究所 | Air tightness testing device |
-
2013
- 2013-06-17 CN CN201310238934.4A patent/CN104236814A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108051160A (en) * | 2018-01-02 | 2018-05-18 | 吉林大学 | A kind of vacuum cup sealing propertytest testing stand |
| CN108051160B (en) * | 2018-01-02 | 2019-12-20 | 吉林大学 | Vacuum chuck leakproofness testing platform |
| CN111693227A (en) * | 2019-03-13 | 2020-09-22 | 中国船舶重工集团公司第七一一研究所 | Air tightness testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141224 |