CN220525255U - Multi-way valve air tightness detection device - Google Patents
Multi-way valve air tightness detection device Download PDFInfo
- Publication number
- CN220525255U CN220525255U CN202322171175.6U CN202322171175U CN220525255U CN 220525255 U CN220525255 U CN 220525255U CN 202322171175 U CN202322171175 U CN 202322171175U CN 220525255 U CN220525255 U CN 220525255U
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- Prior art keywords
- valve
- air inlet
- air
- valve body
- way valve
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- 238000001514 detection method Methods 0.000 title claims abstract description 37
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 26
- 239000003921 oil Substances 0.000 claims abstract description 19
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to a multi-way valve air tightness detection device. The utility model comprises a multi-way valve to be tested, wherein the multi-way valve comprises a valve body air inlet and a valve body oil port, and the valve body oil port is blocked; a gas supply device for supplying compressed gas; the hydraulic oil container is filled with hydraulic oil, and the multi-way valve to be tested is immersed in the hydraulic oil; the control device comprises a control unit, and an air inlet electromagnetic valve and an air outlet electromagnetic valve which are respectively and electrically connected with the control unit, wherein the air inlet electromagnetic valve is connected between the air supply device and the air inlet of the valve body, and the air outlet electromagnetic valve is connected with the air inlet of the valve body. According to the utility model, the hydraulic oil is used for airtight detection, rust cannot be caused when the hydraulic oil is contacted with the valve body because the hydraulic oil does not need to be replaced, the definition of the hydraulic oil is high, and the leakage phenomenon can be clearly observed. Therefore, the airtight detection by using the hydraulic oil can effectively avoid the risk of external leakage, so that the detection process is safer and more reliable.
Description
Technical Field
The utility model relates to the technical field of valve detection, in particular to a multi-way valve air tightness detection device.
Background
Before the whole machine is assembled, all parts of the multi-way valve are required to be cleaned so as to remove scrap iron stains remained on accessories, and therefore the clamping stagnation phenomenon is avoided in the assembly process. The whole hydraulic valve is subjected to high pressure (about 400 bar), so the sealing performance of the whole hydraulic valve is extremely high, and the phenomenon of oil seepage is not generated. If the oil seepage situation occurs, the oil seepage situation is very dangerous, and once the valve body is pressurized, the oil injection phenomenon can occur on the valve body, and the oil injection phenomenon can cause personal safety accidents. In order to ensure the sealing performance of the valve body, it is important to perform an airtight test before performance test.
The existing multi-way valve detection has the following problems: the water is used as a detection medium, and rust is easy to cause after the water is contacted with cast iron which is the main component of the valve body; the water becomes turbid easily, and it is difficult to clearly observe a fine leakage phenomenon.
Disclosure of Invention
Therefore, the utility model provides the multi-way valve air tightness detection device so as to improve the accuracy and reliability of multi-way valve air tightness detection.
In order to solve the technical problems, the present utility model provides a multi-way valve air tightness detection device, comprising:
the multi-way valve to be tested comprises a valve body air inlet and a valve body oil port, wherein the valve body oil port is blocked;
a gas supply device for supplying compressed gas;
the hydraulic oil container is filled with hydraulic oil, and the multi-way valve to be tested is immersed in the hydraulic oil;
the control device comprises a control unit, and an air inlet electromagnetic valve and an air outlet electromagnetic valve which are respectively and electrically connected with the control unit, wherein the air inlet electromagnetic valve is connected between the air supply device and the air inlet of the valve body, and the air outlet electromagnetic valve is connected with the air inlet of the valve body.
In one embodiment of the present utility model, a muffler is connected between the exhaust port solenoid valve and the valve body intake port.
In one embodiment of the present utility model, the air supply device includes a booster pump and a high-pressure air storage tank connected to the booster pump, and the high-pressure air storage tank is connected to the air inlet solenoid valve.
In one embodiment of the utility model, an air inlet pressure gauge is connected between the air inlet electromagnetic valve and the air inlet of the valve body.
In one embodiment of the utility model, an exhaust port pressure gauge is connected to the exhaust port solenoid valve and the valve body air inlet.
In one embodiment of the utility model, the control unit comprises an electronically controlled timer.
In one embodiment of the utility model, the valve body oil port is connected with a cover plate or a plug.
In one embodiment of the utility model, the device further comprises a power supply device connected with the control device.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
according to the multi-way valve air tightness detection device, hydraulic oil is used for air tightness detection instead of traditional water, because the hydraulic oil does not need to be replaced, rust cannot be caused when the hydraulic oil contacts with a valve body, the definition of the hydraulic oil is high, and the leakage phenomenon can be clearly observed. Therefore, the airtight detection by using the hydraulic oil can effectively avoid the risk of external leakage, so that the detection process is safer and more reliable.
The utility model is provided with the connecting silencer, so that noise generated during exhaust can be reduced, and a better working environment is provided.
The utility model adopts the booster pump and the high-pressure air storage tank to improve the air pressure stability and ensure the accuracy of air tightness detection.
According to the utility model, the pressure condition is conveniently monitored by arranging the air inlet pressure gauge and the air outlet pressure gauge, so that the accuracy of air tightness detection is ensured.
The control unit comprises the electric control timer, so that the detection time can be accurately controlled, and the stability and reliability of detection are improved.
The oil port of the valve body is connected with the cover plate or the plug, so that the tightness is ensured, and leakage is avoided.
Drawings
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings.
FIG. 1 is a schematic diagram of the overall structure of the multi-way valve airtightness detection apparatus according to the present utility model.
Description of the specification reference numerals:
1. a multi-way valve to be tested; 11. a valve body air inlet;
2. a gas supply device; 21. a booster pump; 22. a high-pressure air storage tank;
3. a control device; 31. a control unit; 32. an air inlet electromagnetic valve; 33. an exhaust port electromagnetic valve;
4. a muffler;
5. an air inlet pressure gauge;
6. an exhaust port pressure gauge.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.
In the present utility model, if directions (up, down, left, right, front and rear) are described, they are merely for convenience of description of the technical solution of the present utility model, and do not indicate or imply that the technical features must be in a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the present utility model, "a plurality of" means one or more, and "a plurality of" means two or more, and "greater than", "less than", "exceeding", etc. are understood to not include the present number; "above", "below", "within" and the like are understood to include this number. In the description of the present utility model, the description of "first" and "second" if any is used solely for the purpose of distinguishing between technical features and not necessarily for the purpose of indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the present utility model, unless clearly defined otherwise, terms such as "disposed," "mounted," "connected," and the like should be construed broadly and may be connected directly or indirectly through an intermediate medium, for example; the connecting device can be fixedly connected, detachably connected and integrally formed; can be mechanically connected, electrically connected or capable of communicating with each other; may be a communication between two elements or an interaction between two elements. The specific meaning of the words in the utility model can be reasonably determined by a person skilled in the art in combination with the specific content of the technical solution.
Referring to fig. 1, a multi-way valve air tightness detecting device of the present utility model includes:
the multi-way valve 1 to be tested comprises a valve body air inlet 11 and a valve body oil port, wherein the valve body oil port is blocked;
a gas supply device 2 for supplying compressed gas;
the hydraulic oil container is filled with hydraulic oil, and the multi-way valve 1 to be tested is immersed in the hydraulic oil;
the control device 3 comprises a control unit 31, and an air inlet electromagnetic valve 32 and an air outlet electromagnetic valve 33 which are respectively and electrically connected with the control unit 31, wherein the air inlet electromagnetic valve 32 is connected between the air supply device 2 and the valve body air inlet 11, and the air outlet electromagnetic valve 33 is connected with the valve body air inlet 11.
Since the valve body of the multiway valve 1 to be tested is usually made of cast iron, contact of iron with water causes problems of rust of iron parts. In addition, when the water is used for air tightness detection, a large amount of water remains on the valve body when the multi-way valve is taken out of the water, and once performance test is performed, the excessive water may enter the test stand. The consequences of this would be to be sure that the hydraulic oil may need to be replaced in a light sense, and that serious damage to the whole hydraulic components may result. In addition, the time of using water is longer and can lead to it to become turbid, and the normal use can be just to the water that needs to be changed, and uses hydraulic oil to carry out the gas tightness and detects, has avoided rustting and the water residue problem that water leads to.
In some embodiments, a muffler 4 is connected between the exhaust port solenoid valve 33 and the valve body intake port 11 to reduce noise generated during exhaust.
In some embodiments, the air supply device 2 includes a booster pump 21 and a high-pressure air storage tank 22 connected to the booster pump 21, and the high-pressure air storage tank 22 is connected to the air inlet solenoid valve 32, so as to improve air pressure stability.
In some embodiments, an air inlet pressure gauge 5 is connected between the air inlet solenoid valve 32 and the air inlet 11 of the valve body, so as to monitor the pressure conveniently.
In some embodiments, an exhaust pressure gauge 6 is connected to the exhaust solenoid valve 33 and the valve body air inlet 11, so as to monitor the pressure conveniently.
In some embodiments, the control unit 31 includes an electronically controlled timer, which enables precise control of the detection time. A Programmable Logic Controller (PLC) or a Microcontroller (MCU) can be used as the control unit 31, which has a strong logic processing capability, and can realize precise control of the air inlet solenoid valve 32 and the air outlet solenoid valve 33. Meanwhile, the function of an electric control timer can be realized through programming, and the airtight detection time is accurately set.
In some embodiments, the valve body oil port is connected with a cover plate or a plug, so that tightness is ensured.
In some embodiments, the control device 3 further comprises a power supply device, a storage battery or the like can be used.
When the air-tightness detection device is used, a thickened barrel capable of containing 700L of plastic is prepared, 400L of hydraulic oil is added, an oil port of a valve body of the multi-way valve 1 to be detected is plugged, the occurrence of air leakage is avoided, a valve body air inlet 11 is reserved and connected to the air supply device 2, and the lowest pilot pressure of the hydraulic valve is 30bar, so that the air-tightness detection pressure is set to be 30bar. When the air tightness detection time is set to 3000 seconds by the electric control timer, the air charging is started, at this time, the air inlet electromagnetic valve 32 is opened, the air outlet electromagnetic valve 33 is automatically electrically closed, and after the time reaches the set time, the air inlet electromagnetic valve 32 is closed and the air outlet electromagnetic valve 33 is opened, so that the air discharging is performed. The specific operation is as follows:
a) And assembling the multi-way valve 1 to be tested according to the device connection relation, confirming whether the neglected loading condition exists or not, and marking.
b) And using a cover plate or a plug to plug all oil ports of the multi-way valve 1 to be tested, and checking whether leakage is caused by plugging failure one by one.
c) The multiway valve 1 to be tested is immersed in hydraulic oil.
d) The airtight detection time was set to 3000 seconds by connecting the air charge joint to the valve body air inlet 11.
e) The power supply device switch is turned on, and it is checked whether the air inlet pressure gauge 5 displays the pressure, and after confirming the pressure, it proceeds to the next step.
f) The air inlet solenoid valve 32 is started to start to inflate the multi-way valve 1 to be tested, and during inflation, the pressure value of the air outlet pressure gauge 6 is closely observed, the pressure value is confirmed to be 3MPa, and whether air bubbles exist around the multi-way valve 1 to be tested or not is observed.
g) If the multi-way valve 1 to be tested is found to leak air, the multi-way valve is taken out and marked with the leaking position, the cause of the air leakage is found out, and corresponding parts are used for replacement.
h) After the replacement of the parts, the airtight test is performed again.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same, and although the present utility model has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model, and all such modifications and equivalents are intended to be encompassed in the scope of the claims of the present utility model.
Claims (8)
1. The utility model provides a multiway valve gas tightness detection device which characterized in that includes:
the multi-way valve (1) to be tested comprises a valve body air inlet (11) and a valve body oil port, wherein the valve body oil port is blocked;
a gas supply device (2) for supplying compressed gas;
the hydraulic oil container is filled with hydraulic oil, and the multi-way valve (1) to be tested is immersed in the hydraulic oil;
the control device (3) comprises a control unit (31), and an air inlet electromagnetic valve (32) and an air outlet electromagnetic valve (33) which are respectively electrically connected with the control unit (31), wherein the air inlet electromagnetic valve (32) is connected between the air supply device (2) and the valve body air inlet (11), and the air outlet electromagnetic valve (33) is connected with the valve body air inlet (11).
2. The multi-way valve airtightness detection device according to claim 1, wherein a muffler (4) is connected between the exhaust port electromagnetic valve (33) and the valve body air inlet (11).
3. The multi-way valve air tightness detection device according to claim 1, wherein the air supply device (2) comprises a booster pump (21) and a high-pressure air storage tank (22) connected with the booster pump (21), and the high-pressure air storage tank (22) is connected with the air inlet electromagnetic valve (32).
4. The multi-way valve air tightness detection device according to claim 1, wherein an air inlet pressure gauge (5) is connected between the air inlet electromagnetic valve (32) and the air inlet (11) of the valve body.
5. The multi-way valve air tightness detection device according to claim 1, wherein an air outlet pressure gauge (6) is connected to the air outlet electromagnetic valve (33) and the air inlet (11) of the valve body.
6. A multiple-way valve airtightness detection device according to claim 1, characterised in that the control unit (31) comprises an electronically controlled timer.
7. The multi-way valve air tightness detection device according to claim 1, wherein the valve body oil port is connected with a cover plate or a plug.
8. The multi-way valve airtightness detection device according to claim 1, further comprising power supply means connected to the control means (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322171175.6U CN220525255U (en) | 2023-08-14 | 2023-08-14 | Multi-way valve air tightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322171175.6U CN220525255U (en) | 2023-08-14 | 2023-08-14 | Multi-way valve air tightness detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220525255U true CN220525255U (en) | 2024-02-23 |
Family
ID=89923352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322171175.6U Active CN220525255U (en) | 2023-08-14 | 2023-08-14 | Multi-way valve air tightness detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220525255U (en) |
-
2023
- 2023-08-14 CN CN202322171175.6U patent/CN220525255U/en active Active
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