CN217732009U - Self-operated material dredging valve driven by thin film - Google Patents
Self-operated material dredging valve driven by thin film Download PDFInfo
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- CN217732009U CN217732009U CN202222046373.5U CN202222046373U CN217732009U CN 217732009 U CN217732009 U CN 217732009U CN 202222046373 U CN202222046373 U CN 202222046373U CN 217732009 U CN217732009 U CN 217732009U
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- 239000000463 material Substances 0.000 title claims abstract description 19
- 239000010409 thin film Substances 0.000 title description 2
- 238000009826 distribution Methods 0.000 claims abstract description 40
- 239000012528 membrane Substances 0.000 claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000843 powder Substances 0.000 description 18
- 239000007787 solid Substances 0.000 description 18
- 239000013589 supplement Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model provides a self-operated material dredging valve driven by a film, which relates to the technical field of pneumatic conveying of materials and comprises a valve body, a valve cover, a valve core assembly and a driving mechanism, wherein the valve body is provided with an air inlet, an air distribution channel and an air outlet which can be communicated in sequence, and the valve cover is connected with the valve body to form an accommodating space; the driving mechanism comprises a diaphragm, a diaphragm seat and a shunt channel; the diaphragm is arranged in the accommodating space and can divide the accommodating space into a guide chamber and an air chamber, the air chamber can form a relative closed space, and the guide chamber is communicated with the outside atmosphere; the membrane seat is arranged in the guide chamber and can be pushed by the membrane; the diaphragm seat is provided with an extension part which is inserted into a hole in the valve body and is indirectly connected with the valve core assembly through the jacking piece; one end of the flow distribution channel is communicated with the gas distribution channel, and the other end of the flow distribution channel is communicated with the gas chamber and the gas outlet. The utility model discloses replace traditional piston with diaphragm and diaphragm seat, reduced the manufacturing, the maintenance cost of equipment effectively.
Description
Technical Field
The utility model belongs to the technical field of the pneumatic transmission technique of material and specifically relates to a membrane driven formula of relying on oneself is dredged material valve.
Background
Pneumatic conveying realizes the conveying of granular materials through compressed gas, and is widely applied to an ash removal system of a thermal power plant in China.
The pneumatic conveying technology is also applied to a solid powder conveying system, but due to the accumulation of the solid powder, the conveying of the solid powder needs a large driving force, the phenomenon that the conveying pipeline is blocked by the solid powder is very easy to occur, and when the conveying pipeline is blocked, the normal conveying of the solid powder is seriously influenced.
In the prior art, a blowing-assisted valve is adopted to deal with the situation, the blowing-assisted valve comprises a valve core assembly and a piston for opening and closing the valve core assembly, compressed gas is supplemented into a conveying pipeline by the blowing-assisted valve, and solid powder in the conveying pipeline is swept by the compressed gas so as to dredge the conveying pipeline.
However, the valve core assembly of the blow-assisted valve is driven by the piston to open and close, and the sealing requirement of the piston is high, which results in high manufacturing and maintenance costs of the device, and therefore, there is a need to improve the driving form of the valve core assembly to reduce the manufacturing and maintenance costs of the device.
SUMMERY OF THE UTILITY MODEL
In view of the above situation, the utility model provides a self-operated material dredging valve driven by a film, which aims at solving the technical problem that the normal conveying of solid powder is influenced because the existing conveying pipeline is easily blocked by the solid powder; the second purpose is to solve the problem of high manufacturing and maintenance cost of the blowing-assisting valve.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a self-operated material dredging valve driven by a film, which mainly comprises a valve body, a valve cover, a valve core assembly and a driving mechanism for driving the valve core assembly to act, wherein the valve body is provided with an air inlet, an air distribution channel and an air outlet which can be sequentially communicated;
the driving mechanism comprises a diaphragm, a diaphragm seat and a flow dividing channel formed in the valve body;
the diaphragm is arranged in the accommodating space and can divide the accommodating space into a guide chamber and an air chamber which are independent from each other, wherein the air chamber can form a relative closed space, and the guide chamber is communicated with the external atmosphere;
the membrane seat is arranged in the guide chamber and can be pushed by the membrane; the diaphragm seat is provided with an extension part which is inserted into a hole in the valve body and is indirectly connected with the valve core assembly through the jacking piece;
one end of the flow distribution channel is communicated with the gas distribution channel, and the other end of the flow distribution channel is communicated with the gas chamber and the gas outlet.
In some embodiments of the present invention, the valve element assembly comprises a valve seat, a valve element, and a spring;
the valve seat is arranged in the gas distribution channel and is provided with a connecting groove, a first air channel and a second air channel which can be communicated; the valve core is movably arranged in the connecting groove, and an air guide gap is reserved between the side wall of the valve core and the side wall of the connecting groove; the spring is arranged in the gas distribution channel, and one end of the spring is abutted to the valve core, so that the valve core can block a gas path between the gas distribution channel and the first gas channel under preset pressure.
In some embodiments of the utility model, the one end of distribution passageway extends to outside the valve body, and threaded connection has the regulating part in this department of distribution passageway, and the one end and the regulating part of spring are connected, the other end is connected with the case.
In some embodiments of the present invention, the air inlet is located between the adjuster and the valve seat.
In some embodiments of the present invention, the diameter of the diaphragm is greater than the diameter of the receiving space.
In some embodiments of the present invention, the membrane has elasticity.
In some embodiments of the present invention, the valve cover has an air supplement opening.
In some embodiments of the present invention, the flow dividing passage is connected to an adjusting valve element.
In some embodiments of the present invention, the shunt passage is connected to a pressure gauge.
In some embodiments of the present invention, the valve seat further has a third air passage;
one end of the third air passage is communicated with the first air passage, and the other end of the third air passage is communicated with the middle part of the flow dividing channel.
The embodiment of the utility model provides an at least, have following advantage or beneficial effect:
1. high pressurized air source can be connected to the air inlet, the pipeline that is used for carrying solid powder can be connected to the gas outlet, when pipeline takes place to block up, the compressed gas who comes from high pressurized air source can get into the distribution passageway by the air inlet, enter into the gas chamber through the reposition of redundant personnel passageway afterwards, because diaphragm and compressed gas's area of contact is greater than case and compressed gas's area of contact, make the diaphragm can drive case rebound, thereby make the air inlet, the distribution passageway, the spread groove, first air flue, second air flue and gas outlet communicate in proper order, thus, a large amount of compressed gas just can get into pipeline, in order to sweep the solid powder in the pipeline, realize pipeline's mediation, thereby guarantee the normal transport of solid powder.
2. The utility model discloses replaced traditional piston with diaphragm and diaphragm seat, sealed requirement between diaphragm seat and the air chamber is lower, has reduced manufacturing, the maintenance cost of equipment effectively.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a membrane-driven self-operated material dredging valve.
Icon:
11-valve body, 111-air inlet, 112-air distribution channel, 113-air outlet, 114-regulating component,
121-valve seat, 122-valve core, 123-spring, 124-connecting groove, 125-first air passage, 126-second air passage, 127-air guide gap, 128-third air passage,
2-driving mechanism, 21-valve cover, 211-bayonet, 212-air supplement port, 22-diaphragm, 23-diaphragm seat, 231-extension part, 24-shunt channel, 25-guide chamber, 26-air chamber, 27-regulating valve core, 28-pressure gauge,
31-jacking piece.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the embodiments of the present invention.
In the description of the embodiments of the present invention, it should be understood that the terms "width", "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Examples
Referring to fig. 1, the present embodiment provides a membrane-driven self-operated material dredging valve, which mainly includes a valve body 11, a valve core assembly and a driving mechanism 2.
The valve body 11 has an air inlet 111, an air distribution passage 112, and an air outlet 113 that can communicate in this order.
The cartridge assembly basically includes a valve seat 121, a cartridge 122 and a spring 123. A valve seat 121 is provided in the air distribution passage 112, and the valve seat 121 has a connecting groove 124, a first air passage 125, and a second air passage 126 that can communicate in this order. The valve core 122 is movably disposed in the connecting groove 124, and an air guide gap 127 is left between a side wall of the valve core 122 and a side wall of the connecting groove 124 so as to communicate the air distribution passage 112, the connecting groove 124 and the first air passage 125. The spring 123 is installed in the air distribution passage 112, and one end of the spring 123 abuts against the valve core 122, and the spring 123 is used for enabling the valve core 122 to move downwards and reset, so that the valve core 122 can block the first air passage 125 under a preset pressure, and thus the air passage between the first air passage 125 and the air distribution passage 112 is blocked.
The drive mechanism 2 mainly includes a valve cover 21, a diaphragm 22, a diaphragm seat 23, and a branch passage 24. The valve cover 21 is connected to the valve body 11, and an accommodating space is formed between the valve cover 21 and the valve body 11. The diaphragm 22 is disposed in the accommodating space and can divide the accommodating space into a guide chamber 25 and an air chamber 26 which are independent of each other, wherein the air chamber 26 can form a relatively closed space, the guide chamber 25 communicates with the external atmosphere, and the area of the lower side of the diaphragm 22 is larger than that of the upper side of the valve element 122. The diaphragm seat 23 is arranged in the guide chamber 25 and can be pushed by the diaphragm 22; the diaphragm seat 23 has an extension 231, and the extension 231 is inserted into a hole on the valve body 11 and indirectly connected to the valve element 122 through the lift-up member 31. The flow dividing passage 24 has one end communicating with the air distribution passage 112 and the other end communicating with the air chamber 26.
The gas inlet 111 can be connected with a high-pressure gas source, the gas outlet 113 can be connected with a conveying pipeline for conveying solid powder, when the conveying pipeline is blocked, compressed gas from the high-pressure gas source can enter the gas distribution channel 112 from the gas inlet 111 and then enter the gas chamber 26 through the flow distribution channel 24, at the moment, the contact area between the diaphragm 22 and the compressed gas is larger than that between the valve core 122 and the compressed gas, so that the diaphragm 22 drives the diaphragm seat 23 to move upwards, the diaphragm seat 23 can also drive the valve core 122 to move upwards, and thus the gas inlet 111, the gas distribution channel 112, the connecting groove 124, the first gas channel 125, the second gas channel 126 and the gas outlet 113 are communicated, so that a large amount of compressed gas can enter the conveying pipeline to purge the solid powder in the conveying pipeline, dredge the conveying pipeline is realized, and normal conveying of the solid powder is ensured.
The principal components and principles of operation of a membrane-actuated, self-operated, phobic valve are generally described above and will be described in greater detail below.
In order to make the diaphragm 22 move the valve core 122 upward, the diameter of the diaphragm 22 is larger than the diameter of the accommodating space (the size in the left-right direction shown in fig. 1), and the diaphragm 22 may also have elasticity. Specifically, when the diameter of the diaphragm 22 is larger than that of the accommodating space, the diaphragm 22 can push the valve element 122 upward under the action of the air pressure; when the diaphragm 22 is elastic, the diaphragm 22 can deform under the action of air pressure to push the valve element 122 upwards; the diaphragm 22 can also satisfy the above two conditions at the same time, that is, the diaphragm 22 can have elasticity while having a diameter larger than that of the accommodating space, which enables the diaphragm 22 to push the valve element 122 upward under the action of the air pressure.
In this embodiment, the diameter of the diaphragm 22 is preferably 3-4 times the diameter of the spool 122 to ensure that the diaphragm 22 can push the spool 122 upward.
In this embodiment, in order to facilitate the fixing of the diaphragm 22, it is preferable that a structure similar to the bayonet 211 is provided on the valve cover 21, and the bayonet 211 cooperates with the valve body 11 to clamp the edge of the fixed diaphragm 22.
In the present embodiment, the bonnet 21 is bolted to the valve body 11 to facilitate the removal of the bonnet 21.
The lateral wall of the guide chamber 25 can be further provided with a breathing hole (not shown in the figure), and the breathing hole is used for communicating the external atmosphere environment with the guide chamber 25, so that even under the condition that the size of the diaphragm seat 23 is basically consistent with that of the guide chamber 25, when the diaphragm seat 23 moves up and down in the guide chamber 25, the resistance received is smaller, and therefore the valve core assembly is convenient to open and close, namely the valve core 122 is convenient to move up and down.
The lower side of the valve cover 21 can be provided with an air supplement port 212, the air supplement port 212 can be connected with other air sources, and the compressed air entering the air chamber 26 from the air supplement port 212 can also move the diaphragm seat 23 upwards.
In a preferred implementation scenario, one end of the air distribution passage 112 extends out of the valve body 11, the end of the air distribution passage 112 is screwed with the adjusting piece 114, one end of the spring 123 is connected with the adjusting piece 114, the other end is connected with the valve core 122, the adjusting piece 114 can block the end of the air distribution passage 112, and the air inlet 111 is located between the adjusting piece 114 and the valve seat 121. By rotating the adjustment member 114, the predetermined pressure of the spring 123 against the spool 122 can be adjusted.
A regulator spool 27 and a pressure gauge 28 may be connected to the branch passage 24 to regulate the flow rate in the branch passage 24 and to detect the pressure in the branch passage 24.
The valve seat 121 may further have a third air passage 128, and one end of the third air passage 128 is communicated with the first air passage 125, and the other end is communicated with the middle of the branch passage 24. When the conveying pipeline connected with the gas outlet 113 has less solid powder, the compressed gas in the gas distribution channel 112 can directly enter the conveying pipeline through a path formed by the flow dividing channel 24, the third gas channel 128, the first gas channel 125, the second gas channel 126 and the gas outlet 113 so as to supplement a small amount of gas to the conveying pipeline, so that a gas source is saved; when the conveying pipeline is blocked due to more solid powder, the pressure in the conveying pipeline is gradually increased, so that the pressure in the air inlet 111 is also increased, the compressed air in the diversion channel 24 enters the air chamber 26, the diaphragm seat 23 and the valve core 122 are upwards pushed by the diaphragm 22 to communicate the connecting groove 124 with the first air passage 125, at the moment, a large amount of compressed air in the air distribution channel 112 can enter the conveying pipeline through a path formed by the air distribution channel 112, the connecting groove 124, the first air passage 125, the second air passage 126 and the air outlet 113, so that a large amount of compressed air is supplemented into the conveying pipeline, the solid powder in the conveying pipeline is swept, and the dredging of the conveying pipeline is realized.
Of course, the diversion channel 24 may also be communicated with the air outlet 113 in other manners, so as to facilitate a small amount of air supply to the conveying pipeline when the solid powder in the conveying pipeline is less, thereby saving the air source.
Finally, it should be noted that: the above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art can make various modifications and changes, and the embodiments of the present invention and features of the embodiments can be arbitrarily combined with each other without conflict. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A membrane-actuated, self-operated, material evacuation valve comprising: the valve comprises a valve body, a valve cover, a valve core assembly and a driving mechanism for driving the valve core assembly to act, wherein the valve body is provided with an air inlet, an air distribution channel and an air outlet which can be communicated in sequence; the method is characterized in that:
the driving mechanism comprises a diaphragm, a diaphragm seat and a flow dividing channel formed in the valve body;
the diaphragm is arranged in the accommodating space and can divide the accommodating space into a guide chamber and an air chamber which are independent from each other, wherein the air chamber can form a relative closed space, and the guide chamber is communicated with the outside atmosphere;
the membrane seat is arranged in the guide chamber and can be pushed by the membrane; the diaphragm seat is provided with an extension part which is inserted into a hole in the valve body and is indirectly connected with the valve core assembly through a jacking piece;
one end of the flow distribution channel is communicated with the gas distribution channel, and the other end of the flow distribution channel is communicated with the gas chamber and the gas outlet.
2. The membrane-actuated, self-operated, material phobic valve of claim 1, wherein:
the valve core assembly comprises a valve seat, a valve core and a spring;
the valve seat is arranged in the gas distribution channel and is provided with a connecting groove, a first air channel and a second air channel which can be communicated; the valve core is movably arranged in the connecting groove, and an air guide gap is reserved between the side wall of the valve core and the side wall of the connecting groove; the spring is arranged in the air distribution channel, and one end of the spring is abutted to the valve core, so that the valve core can block an air passage between the air distribution channel and the first air passage under preset pressure.
3. The membrane-driven self-operated material discharge valve according to claim 2, wherein one end of the air distribution channel extends to the outside of the valve body, an adjusting piece is connected to the end of the air distribution channel in a threaded manner, one end of the spring is connected with the adjusting piece, and the other end of the spring is connected with the valve core.
4. The membrane-actuated, self-operated, material phobic valve of claim 3, wherein the air inlet is located between the regulating member and the valve seat.
5. The membrane-actuated, self-operated, material-phobic valve of any one of claims 2-4, wherein:
the valve seat is also provided with a third air passage;
one end of the third air passage is communicated with the first air passage, and the other end of the third air passage is communicated with the middle of the flow dividing channel.
6. The membrane-actuated, self-operated, material phobic valve of claim 1, wherein the diameter of the membrane is greater than the diameter of the receiving space.
7. The membrane-actuated, self-operated, material phobic valve of claim 1, wherein the membrane is elastic.
8. The membrane-driven self-operated material discharge valve according to claim 1, wherein the valve cover is provided with an air supply port.
9. The membrane-actuated self-operated material discharge valve according to claim 1, wherein the bypass passage is connected to a regulator valve cartridge.
10. The membrane-actuated, self-operated, material evacuation valve of claim 1, wherein the flow-splitting channel is connected to a pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222046373.5U CN217732009U (en) | 2022-08-04 | 2022-08-04 | Self-operated material dredging valve driven by thin film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222046373.5U CN217732009U (en) | 2022-08-04 | 2022-08-04 | Self-operated material dredging valve driven by thin film |
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| Publication Number | Publication Date |
|---|---|
| CN217732009U true CN217732009U (en) | 2022-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222046373.5U Active CN217732009U (en) | 2022-08-04 | 2022-08-04 | Self-operated material dredging valve driven by thin film |
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| CN (1) | CN217732009U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115303805A (en) * | 2022-08-04 | 2022-11-08 | 四川省科能工业设备制造有限公司 | Self-operated trap valve |
-
2022
- 2022-08-04 CN CN202222046373.5U patent/CN217732009U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115303805A (en) * | 2022-08-04 | 2022-11-08 | 四川省科能工业设备制造有限公司 | Self-operated trap valve |
| CN115303805B (en) * | 2022-08-04 | 2025-01-28 | 四川省科能工业设备制造有限公司 | Self-operated drain valve |
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