CN210135305U - Pulse valve - Google Patents
Pulse valve Download PDFInfo
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- CN210135305U CN210135305U CN201921103267.8U CN201921103267U CN210135305U CN 210135305 U CN210135305 U CN 210135305U CN 201921103267 U CN201921103267 U CN 201921103267U CN 210135305 U CN210135305 U CN 210135305U
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- diaphragm
- containing chamber
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Abstract
The utility model discloses a pulse valve, including valve body and diaphragm, the valve body has air inlet and gas vent, the diaphragm is located in the valve body, and with form first appearance air chamber and second between the valve body and hold the air chamber, the diaphragm is used for controlling the gas vent and opens or close, and the part that the diaphragm covered the gas vent is equipped with the piece of blowing, be equipped with airflow channel on the piece of blowing, airflow channel is used for making the second hold the high-temperature gas that high-pressure gas in the air chamber will contact with the diaphragm and blow away from the diaphragm, perhaps the gas vent is to the first formation extension that holds extending in the air chamber, be equipped with the gas hole on the extension, the gas hole makes the first high-temperature gas who holds in the air chamber and will contact with the diaphragm blow away. The utility model discloses a will blow away the diaphragm with the high-temperature gas of diaphragm contact to make high-temperature gas and diaphragm keep apart, and then make the diaphragm keep the normal atmospheric temperature or make the diaphragm cooling, prolonged the life of diaphragm and pulse valve.
Description
Technical Field
The utility model belongs to the technical field of the valve technique and specifically relates to a pulse valve is related to.
Background
The pulse valve is a diaphragm valve which is controlled by a pilot valve such as an electromagnetic valve or a pneumatic valve and can instantly open and close high-pressure gas to generate pulses. The pulse valve is mainly applied to a dust removal system which is a main part of a bag-type dust remover, and the blowing can reach more than 100 ten thousand times. The dust removal system mainly comprises a gas collecting hood, an air exhaust pipeline, a bag-type dust remover and the like. When the dust collector is implemented, the fan is used for generating power, dust-containing gas is sent into the bag-type dust collector through the air exhaust pipeline for purification, the purified gas is exhausted from the chimney through the exhaust pipeline, and the collected dust is exhausted from the exhaust device.
In the existing pulse valve, the contact part of the diaphragm and the exhaust port is completely sealed, and when high-pressure gas is input into the air inlet and the diaphragm is not exhausted to the exhaust port before being opened. However, in some blast furnaces and fuel engines, dust-containing high-temperature tail gas is generated, and due to the limitation of some dust removal system spaces, the dust-containing high-temperature gas cannot be effectively cooled before entering the gas collecting hood. And the high-temperature gas containing dust in the gas-collecting hood enters the exhaust port of the pulse valve through the pipeline to contact with the diaphragm in the waiting process of opening the pulse valve, so that the diaphragm made of rubber materials is accelerated to age or is melted, and the diaphragm is damaged to cause the failure of the pulse valve.
In addition, in order to prevent the high-temperature gas containing dust in the gas collecting hood from contacting the diaphragm in the prior art, the check valve is arranged between the exhaust port of the pulse valve and the pipeline connected with the dust collecting hood to prevent the high-temperature gas in the dust collecting tank hood from contacting the diaphragm of the pulse valve, however, the volume of the check valve is usually large, and the check valve influences the flexible arrangement of the pulse valve in some occasions with limited space.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide one kind can prolong diaphragm life and the nimble pulse valve of arrangement mode.
In order to achieve the above object, the utility model provides a following technical scheme: a pulse valve comprises a valve body and a diaphragm, wherein the valve body is provided with an air inlet and an air outlet, the diaphragm is arranged in the valve body and used for controlling the opening or closing of the air outlet, a first air containing chamber and a second air containing chamber are formed between the diaphragm and the valve body, the air inlet is communicated with the first air containing chamber, the air outlet is communicated with the first air containing chamber when opened, at least one first air flow channel for enabling high-pressure air in the first air containing chamber to enter the second air containing chamber is arranged on the diaphragm, an air blowing piece is further arranged on the part for plugging the air outlet of the diaphragm, and a second air flow channel for enabling high-pressure air in the second air containing chamber to blow high-temperature air which is in contact with the diaphragm away from the diaphragm is arranged on the air blowing piece.
Preferably, the second gas flow channel comprises a first channel communicated with the second gas containing chamber and a plurality of second channels communicated with the first channel, and the second channels are positioned on one side of the membrane contacted with the high-temperature gas and used for blowing the high-pressure gas to different directions so as to blow the high-pressure gas contacted with the membrane away from the membrane.
Preferably, one end of each second channel is connected into a whole, the opposite ends of each second channel extend to different directions, all the second channels are located on the same plane, and the included angle formed between every two second channels is the same.
Preferably, the inner diameter of each of the first channel and the second channel is 0.1-1 mm.
Preferably, the exhaust port extends into the valve body to form an extension part, and the extension part is provided with a plurality of blowing holes, and the blowing holes are used for blowing high-temperature gas in the first gas containing chamber away from the diaphragm, wherein the high-temperature gas is in contact with the diaphragm.
Preferably, the inner diameter of the air blowing hole is 0.1-1 mm.
Preferably, the angle of the high-pressure gas blown to the membrane through the gas blowing holes is 30-80 degrees.
The utility model also discloses a pulse valve, including valve body and diaphragm, the valve body has air inlet and gas vent, the gas vent extends to this internal formation extension of valve, the diaphragm is used for control opening or closing of gas vent, form first appearance air chamber and second appearance air chamber between diaphragm and the valve body, the air inlet is linked together with first appearance air chamber, the gas vent is linked together with first appearance air chamber when opening, be equipped with at least one on the diaphragm and make first high-pressure gas that holds in the air chamber get into the first air current channel that the second held in the air chamber, be equipped with the several hole of blowing on the extension, the hole of blowing is used for making first high-pressure gas that holds in the air chamber will blow away from the diaphragm with the high-temperature gas that the diaphragm contacted.
Preferably, the inner diameter of the air blowing hole is 0.1-1 mm.
Preferably, the angle of the high-pressure gas blown to the membrane through the gas blowing holes is 30-80 degrees.
The utility model has the advantages that:
pulse valve have airflow channel's piece of blowing through setting up on the diaphragm, so that the high-temperature gas that makes the second hold in the air chamber will contact with the diaphragm blows away from the diaphragm, and/or set up a plurality of holes of blowing on the extension, so that the high-temperature gas that makes first hold in the air chamber will contact with the diaphragm blows away from the diaphragm, make the diaphragm keep the normal atmospheric temperature or make the diaphragm cooling, the life of diaphragm and pulse valve has effectively been prolonged, the maintenance time and the cost of user's scene have been reduced, make pulse valve arrangement mode more nimble.
Drawings
Fig. 1 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 2 is a schematic perspective view of the blowing member of FIG. 1;
fig. 3 is a schematic cross-sectional view of a second embodiment of the present invention;
fig. 4 is a schematic cross-sectional view of the third embodiment of the present invention.
Reference numerals: 10. the valve comprises a valve body, 11, an air inlet, 12, an air outlet, 13, an extension part, 131, an air blowing hole, 20, a diaphragm, 30, a first air containing chamber, 40, a second air containing chamber, 50, an air blowing piece, 51, a penetrating part, 511, a first channel, 52, a limiting part, 521, a second channel, 60, a second air flow channel, 70 and a spring.
Detailed Description
The technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention.
The utility model discloses a pulse valve blows away diaphragm 20 through the high temperature gas who will contact with diaphragm 20 to make high temperature gas and diaphragm 20 keep apart, and then make diaphragm 20 keep the normal atmospheric temperature or make diaphragm 20 cool down, prolonged diaphragm 20 and pulse valve's life.
The pulse valve according to the present invention will be described in detail with reference to three embodiments.
Example one
Referring to fig. 1 and 2, the disclosed impulse valve includes a valve body 10 and a diaphragm 20. Specifically, the valve body 10 has an air inlet 11 and an air outlet 12, the diaphragm 20 is disposed in the valve body 10 and is used for controlling the opening or closing of the air outlet 12, a first air containing chamber 30 and a second air containing chamber 40 are formed between the diaphragm 20 and the valve body 10, the first air containing chamber 30 and the second air containing chamber 40 are both used for containing high-pressure air, wherein the air inlet 11 is communicated with the first air containing chamber 30, and the air outlet 12 is communicated with the first air containing chamber 30 when opened.
Further, at least one first air flow channel (not shown) is disposed on the membrane 20, and the first air flow channel is used for allowing the high-pressure air in the first air containing chamber 30 to enter the second air containing chamber 40.
Furthermore, a portion of the diaphragm 20 covering the exhaust port 12 is further provided with a blowing member 50, the blowing member 50 is provided with a second air flow channel 60, the second air flow channel 60 is used for blowing the high-temperature gas in the second air accommodating chamber 40 away from the diaphragm 20, in implementation, two sides of the diaphragm 20 are further provided with gaskets, and the blowing member 50 can be connected with the gaskets and the diaphragm 50 in a riveting or threaded manner.
In specific implementation, the high-pressure gas enters the first gas containing chamber 30 through the gas inlet 11, the high-pressure gas in the first gas containing chamber 30 further enters the second gas containing chamber 40 through the first gas flow channel, and the high-pressure gas in the second gas containing chamber 40 keeps the pressure in the first gas containing chamber 30 and the pressure in the second gas containing chamber 40 consistent on one hand, and on the other hand, the high-temperature gas in contact with the diaphragm 20 is blown away from the diaphragm 20 through the second gas flow channel 60, so that the high-temperature gas is isolated from the diaphragm 20. The diaphragm 20 blocks the exhaust port 12 by the high-pressure gas in the second gas containing chamber 40 and the spring 70 shown in fig. 1, so that the high-pressure gas in the first gas containing chamber 30 cannot be ejected from the exhaust port 12. When the pressure in the second air containing chamber 40 is smaller than the pressure in the first air containing chamber 30, the high-pressure gas in the first air containing chamber 30 jacks up the diaphragm 20, so that the exhaust port 12 is opened, and the high-pressure gas in the first air containing chamber 30 is ejected from the exhaust port.
As shown in fig. 2, the blowing member 50 includes a penetrating portion 51 and a limiting portion 52 connected to the penetrating portion 51, wherein the penetrating portion 51 is disposed through the membrane 20, and a first passage 511 communicating with the second air accommodating chamber 40 is disposed on the penetrating portion 51; the limiting part 52 is located on one side of the diaphragm 20 contacting with the high-temperature gas, a plurality of second channels 521 are arranged on the limiting part, each second channel 521 is communicated with the first channel 511, and the plurality of second channels 521 are used for blowing the high-pressure gas entering through the first channel 511 to different directions so as to blow the high-pressure gas contacting with the diaphragm 20 away from the diaphragm 20. In implementation, the high-pressure gas in the second gas containing chamber 40 enters each second channel 521 through the first channel 511, and under the action of the second channels 521, the high-pressure gas is blown to different directions, and finally, the high-pressure gas in contact with the diaphragm 20 is blown away from the diaphragm 20, so that the diaphragm 20 is kept at normal temperature or the diaphragm 20 is cooled, and the service life of the diaphragm 20 is prolonged.
In this embodiment, one end of each of the second passages 521 is connected together, and the opposite end extends in different directions, so that the high-pressure gas is blown in different directions. In specific implementation, it is preferable that all the second channels 521 are located on the same plane and/or the included angle formed between every two second channels 521 is the same, for example, all the second channels 521 are located on the same horizontal plane, and the included angle between every two second channels 521 is 30 degrees or 60 degrees, and the like, and of course, the arrangement mode of the second channels 521 is not limited to the above, and may also be arranged according to actual requirements. In addition, the number of the second channels 521 can be set according to actual requirements, such as setting the number of the second channels 521 to be 4 or 6, and so on.
In order to maintain the constant pressure of the first and second gas containing chambers 30 and 40 and ensure that the high-pressure gas in the second gas containing chamber 40 can blow away the high-temperature gas contacting the diaphragm 20, the inner diameters of the first and second passages 511 and 521 are set. In this embodiment, the inner diameter of the first passage 511 and the second passage 521 is preferably 0.1 to 1mm, but in practice, the inner diameter of the first passage 511 and the second passage 521 may be adjusted according to the pressure of the high-pressure gas, so as to maintain the pressure of the first gas containing chamber 30 and the pressure of the second gas containing chamber 40 constant, and ensure that the high-pressure gas in the second gas containing chamber can blow away the high-temperature gas contacting the membrane 20.
Example two
As shown in fig. 3, the pulse valve disclosed in the present invention includes a valve body 10 and a diaphragm 20. Specifically, the valve body 10 has an air inlet 11 and an air outlet 12, and the air outlet 12 extends toward the inside of the valve body 10 to form an extension 13; the diaphragm 20 is provided in the valve body 10, and controls the opening or closing of the exhaust port 12 through the extending portion 13, that is, when the diaphragm 20 blocks the extending portion 13, the exhaust port 12 is closed, and when the diaphragm 20 does not block the extending portion 13, the exhaust port 12 is opened.
Further, a first air containing chamber 30 and a second air containing chamber 40 are formed between the diaphragm 20 and the valve body 10, the first air containing chamber 30 and the second air containing chamber 40 are both used for containing high-pressure gas, wherein the air inlet 11 is communicated with the first air containing chamber 30, and the air outlet 12 is communicated with the first air containing chamber 30 when being opened; the diaphragm 20 is provided with at least one first air flow passage for allowing the high-pressure air in the first air containing chamber 30 to enter the second air containing chamber 40.
Furthermore, the extension 13 is provided with a plurality of blowing holes 131, and the blowing holes 131 are used for allowing the high-pressure gas in the first gas containing chamber 30 to blow the high-temperature gas contacting with the membrane 20 away from the membrane 20. In practice, the blowing holes 131 are uniformly distributed on the extension 13, and the high-pressure gas blown through the blowing holes 131 gathers toward the center of the diaphragm 20.
In specific implementation, high-pressure gas enters the first gas containing chamber 30 through the gas inlet 11, a part of the high-pressure gas in the first gas containing chamber 30 enters the second gas containing chamber 40 through the first gas flow channel, a part of the high-temperature gas in contact with the diaphragm 20 is blown away from the diaphragm 20 through the blowing hole 131, so that the high-temperature gas is isolated from the diaphragm 20, the high-pressure gas in the second gas containing chamber 40 keeps the pressures in the first gas containing chamber 30 and the second gas containing chamber 40 consistent, and at this time, the diaphragm 20 blocks the gas outlet 12 under the action of the high-pressure gas in the second gas containing chamber 40 and the spring 70 shown in fig. 3, so that the high-pressure gas in the first gas containing chamber 30 cannot be ejected from the gas outlet 12. When the pressure in the second air containing chamber 40 is smaller than the pressure in the first air containing chamber 30, the high-pressure gas in the first air containing chamber 30 jacks up the diaphragm 20, so that the exhaust port 12 is opened, and the high-pressure gas in the first air containing chamber 30 is ejected from the exhaust port.
In order to maintain the constant pressure of the first and second air accommodating chambers 30 and 40 and ensure that the high-pressure air in the first air accommodating chamber can blow away the high-temperature air in contact with the diaphragm 20 through the air blowing holes 131, the inner diameter and number of the air blowing holes 131 and the angle at which the high-pressure air is blown toward the diaphragm 20 through the air blowing holes 131 are also set. In this embodiment, the inner diameter of the blowing holes 131 is 0.1 to 1mm, the number of the blowing holes 131 is 2 to 6, and the angle of the high pressure gas blown to the membrane 20 through the blowing holes 131 is 30 to 80 degrees, but in practice, the inner diameter of the blowing holes 131, the number of the high pressure gas blown to the membrane 20 through the blowing holes 131, and the angle of the high pressure gas blown to the membrane 20 through the blowing holes 131 can be adjusted according to the pressure of the high pressure gas, so that the pressure of the first gas containing chamber 30 and the pressure of the second gas containing chamber 40 are kept constant, and the high pressure gas in the second gas containing chamber can blow off the high temperature gas contacting the membrane 20.
EXAMPLE III
As shown in fig. 4, the pulse valve disclosed in the present invention includes a valve body 10 and a diaphragm 20. Specifically, the valve body 10 has an air inlet 11 and an air outlet 12, and the air outlet 12 extends toward the inside of the valve body 10 to form an extension 13; the diaphragm 20 is provided in the valve body 10, and controls the opening or closing of the exhaust port 12 through the extending portion 13, that is, when the diaphragm 20 blocks the extending portion 13, the exhaust port 12 is closed, and when the diaphragm 20 does not block the extending portion 13, the exhaust port 12 is opened.
Further, a first air containing chamber 30 and a second air containing chamber 40 are formed between the diaphragm 20 and the valve body 10, the first air containing chamber 30 and the second air containing chamber 40 are both used for containing high-pressure gas, wherein the air inlet 11 is communicated with the first air containing chamber 30, and the air outlet 12 is communicated with the first air containing chamber 30 when being opened; the diaphragm 20 is provided with at least one first air flow passage for allowing the high-pressure air in the first air containing chamber 30 to enter the second air containing chamber 40.
Furthermore, the part of the membrane 20 covering the exhaust port 12 is also provided with a blowing piece 50 in a penetrating manner, the blowing piece 50 is provided with a second air flow channel 60, the second air flow channel 60 is used for enabling high-pressure air in the second air accommodating chamber 40 to blow high-temperature air contacting with the membrane 20 away from the membrane 20, in the implementation, two sides of the membrane 20 are also respectively provided with a gasket, and the blowing piece 50 can be connected with the gasket and the membrane 50 in a riveting or threaded connection manner; the extending portion 13 is provided with a plurality of blowing holes 131, and the blowing holes 131 are used for blowing the high-temperature gas in contact with the membrane 20 from the membrane 20 by the high-pressure gas in the first gas containing chamber 30. In practice, the blowing holes 131 are uniformly distributed on the extension 13, and the high-pressure gas blown through the blowing holes 131 gathers toward the center of the diaphragm 20.
In specific implementation, high-pressure gas enters the first gas containing chamber 30 through the gas inlet 11, a part of the high-pressure gas in the first gas containing chamber 30 enters the second gas containing chamber 40 through the first gas flow channel, and a part of the high-temperature gas in contact with the diaphragm 20 is blown away from the diaphragm 20 through the blowing holes 131, so that the high-temperature gas is isolated from the diaphragm 20. The high-pressure gas in the second gas containing chamber 40 keeps the pressure in the first and second gas containing chambers 30 and 40 uniform on the one hand, and blows the high-temperature gas in contact with the diaphragm 20 away from the diaphragm 20 through the second gas flow passage 60 to isolate the high-temperature gas from the diaphragm 20 on the other hand. The diaphragm 20 closes the exhaust port 12 by the high-pressure gas in the second gas containing chamber 40 and by the spring 70 shown in fig. 4, so that the high-pressure gas in the first gas containing chamber 30 cannot be ejected from the exhaust port 12. When the pressure in the second air containing chamber 40 is smaller than the pressure in the first air containing chamber 30, the high-pressure gas in the first air containing chamber 30 jacks up the diaphragm 20, so that the exhaust port 12 is opened, and the high-pressure gas in the first air containing chamber 30 is ejected from the exhaust port.
In this embodiment, the first passage 511 and the second passage 521 are specifically described with reference to embodiment one, and the blow hole 131 is specifically described with reference to embodiment two, and will not be described in detail here.
The pulse valve can select according to actual demand when concrete implementation, like the scheme in the alternative embodiment one, promptly: a blowing member 50 having a plurality of passages is provided on the membrane 20 so that the high-pressure gas in the second gas containing chamber 40 blows the high-temperature gas contacting the membrane 20 away from the membrane 20, or the scheme in the second embodiment is selected, that is: a plurality of blowing holes 131 are provided on the extension 13, so that the high-pressure gas in the first gas containing chamber 30 blows the high-temperature gas contacting with the membrane 20 away from the membrane 20, or the scheme in the third embodiment is selected, that is: a plurality of blowing holes 131 are provided at the extension 13 so that the high-pressure gas in the first gas containing chamber 30 blows the high-temperature gas contacting the membrane 20 away from the membrane 20, and a blowing member 50 having a plurality of passages is provided at the membrane 20 so that the high-pressure gas in the second gas containing chamber 40 blows the high-temperature gas contacting the membrane 20 away from the membrane 20. The high-temperature gas in contact with the diaphragm 20 is blown away from the diaphragm 20, so that the diaphragm 20 is kept at normal temperature or the diaphragm 20 is cooled, the service life of the diaphragm 20 is effectively prolonged, the on-site maintenance time and cost of a user are reduced, and the valve is suitable for right-angle electromagnetic pulse valves, submerging electromagnetic pulse valves and external pilot pulse valves.
The technical contents and features of the present invention have been disclosed as above, however, those skilled in the art can still make various substitutions and modifications based on the teaching and disclosure of the present invention without departing from the spirit of the present invention, therefore, the protection scope of the present invention should not be limited to the contents disclosed in the embodiments, but should include various substitutions and modifications without departing from the present invention, and should be covered by the claims of the present patent application.
Claims (10)
1. The pulse valve is characterized by comprising a valve body and a diaphragm, wherein the valve body is provided with an air inlet and an air outlet, the diaphragm is arranged in the valve body and used for controlling the opening or closing of the air outlet, a first air containing chamber and a second air containing chamber are formed between the diaphragm and the valve body, the air inlet is communicated with the first air containing chamber, the air outlet is communicated with the first air containing chamber when the air outlet is opened, at least one first air flow channel for enabling high-pressure air in the first air containing chamber to enter the second air containing chamber is arranged on the diaphragm, an air blowing piece is further arranged at the part for plugging the air outlet of the diaphragm, and a second air flow channel for enabling high-pressure air in the second air containing chamber to blow high-temperature air which is in contact with the diaphragm away from the diaphragm is arranged on the air blowing piece.
2. The pulse valve according to claim 1, wherein the second gas flow passage comprises a first passage communicating with the second gas containing chamber and a plurality of second passages communicating with the first passage, the second passages being provided on a side of the diaphragm contacting the high temperature gas for blowing the high pressure gas in different directions to blow the high pressure gas contacting the diaphragm away from the diaphragm.
3. The pulse valve according to claim 2, wherein one end of each of the second passages is connected to a single body, the opposite ends of each of the second passages extend in different directions, all of the second passages are located on the same plane, and the included angle formed between every two second passages is the same.
4. The impulse valve of any one of claims 2 to 3, wherein the first and second channels each have an inner diameter of 0.1 to 1 mm.
5. The pulse valve according to claim 1, wherein the exhaust port extends into the valve body to form an extension portion, and the extension portion is provided with a plurality of air blowing holes, and the air blowing holes are used for enabling high-pressure air in the first air accommodating chamber to blow high-temperature air in contact with the diaphragm away from the diaphragm.
6. The impulse valve of claim 5, wherein the inner diameter of the air blowing hole is 0.1-1 mm.
7. The pulse valve according to claim 5, wherein the angle at which the high-pressure gas is blown to the diaphragm through the blow hole is 30 ° to 80 °.
8. The pulse valve is characterized by comprising a valve body and a diaphragm, wherein the valve body is provided with an air inlet and an air outlet, the air outlet extends into the valve body to form an extending part, the diaphragm is used for controlling the opening or closing of the air outlet, a first air containing chamber and a second air containing chamber are formed between the diaphragm and the valve body, the air inlet is communicated with the first air containing chamber, the air outlet is communicated with the first air containing chamber when being opened, at least one first air flow channel for enabling high-pressure air in the first air containing chamber to enter the second air containing chamber is arranged on the diaphragm, and a plurality of air blowing holes are formed in the extending part and used for enabling the high-pressure air in the first air containing chamber to blow high-temperature air which is in contact with the diaphragm away from the diaphragm.
9. The pulse valve according to claim 8, wherein the inner diameter of the air blowing hole is 0.1-1 mm.
10. The pulse valve according to claim 8, wherein the angle at which the high-pressure gas is blown to the diaphragm through the blow hole is 30 ° to 80 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921103267.8U CN210135305U (en) | 2019-07-15 | 2019-07-15 | Pulse valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921103267.8U CN210135305U (en) | 2019-07-15 | 2019-07-15 | Pulse valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210135305U true CN210135305U (en) | 2020-03-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921103267.8U Expired - Fee Related CN210135305U (en) | 2019-07-15 | 2019-07-15 | Pulse valve |
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| Country | Link |
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| CN (1) | CN210135305U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220034A (en) * | 2019-07-15 | 2019-09-10 | 上海乐臣自动化设备有限公司 | A kind of pulse valve |
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2019
- 2019-07-15 CN CN201921103267.8U patent/CN210135305U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220034A (en) * | 2019-07-15 | 2019-09-10 | 上海乐臣自动化设备有限公司 | A kind of pulse valve |
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Granted publication date: 20200310 Termination date: 20210715 |