CN117823668A - Multi-channel two-stage accurate flow plug valve - Google Patents
Multi-channel two-stage accurate flow plug valve Download PDFInfo
- Publication number
- CN117823668A CN117823668A CN202311617102.3A CN202311617102A CN117823668A CN 117823668 A CN117823668 A CN 117823668A CN 202311617102 A CN202311617102 A CN 202311617102A CN 117823668 A CN117823668 A CN 117823668A
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- Prior art keywords
- valve
- air outlet
- flow
- air inlet
- channel
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 34
- 239000007789 gas Substances 0.000 claims abstract description 24
- 239000002737 fuel gas Substances 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 28
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 238000010411 cooking Methods 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
- F16K11/24—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an electromagnetically-operated valve, e.g. for washing machines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
- F16K27/045—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members with pivotal obturating members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/062—Construction of housing; Use of materials therefor of taps or cocks with conical plugs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention discloses a multi-channel two-stage accurate flow plug valve, and belongs to the technical field of plug valves. It comprises the following steps: a valve body having at least two gas outlet passages; a valve element rotatably disposed within the valve body; the flow regulating plate is connected with the valve core and synchronously rotates along with the rotation of the valve core, the valve core is communicated with each air outlet channel through the flow holes, wherein each air outlet channel is mutually independent, fuel gas flows into different air outlet channels through different flow holes after entering from the valve core, and the flow of each air outlet channel is synchronously regulated along with the rotation of the valve core driving the flow regulating plate. The accurate control of the distribution of the fire power of each air outlet channel is realized through the flow regulating plate, the adjustability of the plug valve is improved, and then the requirement for more accurate fire power seeking in the cooking process by using the gas stove is met.
Description
Technical Field
The invention belongs to the technical field of plug valves, and particularly relates to a multi-channel two-stage accurate flow plug valve.
Background
The plug valve refers to a plug type gas valve which is commonly used in civil gas equipment and is used for controlling the switching supply of a gas source through manual operation, and the fire adjustment is realized through rotating a gear controller.
The existing plug valve often has a plurality of air outlet channels, but can not realize the firepower control of a plurality of air outlet channels through a control knob, has poor adjustability, and can not meet the requirement of more accurate firepower seeking in the cooking process by using a gas stove.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides a multi-channel two-stage accurate flow plug valve capable of realizing firepower control of a plurality of air outlet channels.
The invention can be realized by the following technical scheme:
a multi-channel two-stage precision flow plug valve comprising:
a valve body having at least two gas outlet passages;
a valve element rotatably disposed within the valve body;
a flow rate adjusting plate connected with the valve core and synchronously rotating along with the rotation of the valve core, wherein the flow rate adjusting plate is provided with a plurality of flow rate holes with different sizes, the valve core is communicated with each air outlet channel through the flow rate holes,
each air outlet channel is independent, and after gas enters from the valve core, the gas flows into different air outlet channels through different flow holes respectively, and the flow of each air outlet channel is synchronously regulated along with the rotation of the valve core driving the flow regulating plate.
As a further improvement of the invention, the valve core is provided with a valve core air inlet hole and a valve core air outlet hole, the valve core air inlet hole extends to the side part and is provided with an air inlet hole extending groove, the tail end of the valve core air outlet hole is provided with a tail groove forming connecting part, and the flow regulating plate is connected with the connecting part in an adapting way.
As a further improvement of the invention, the valve body is connected with a solenoid valve, the solenoid valve is provided with a solenoid valve air inlet hole and a solenoid valve air outlet hole, the solenoid valve air inlet hole, the solenoid valve air outlet hole and the valve core air inlet hole are communicated in sequence, wherein,
a sealing included angle is formed between the air outlet hole of the electromagnetic valve and the air inlet hole of the valve core;
the electromagnetic valve automatically opens or closes the air outlet hole of the electromagnetic valve through signals.
As a further improvement of the invention, the front surface of the valve body is provided with a valve rod, the valve rod is connected with the valve core, the back surface of the valve body is provided with an air inlet space, and the flow regulating plate is positioned in the air inlet space.
As a further improvement of the invention, the valve body is provided with air outlet channel connecting holes on the back surface where the air inlet space is located, and each air outlet channel is provided with an independent air outlet channel connecting hole.
As a further improvement of the invention, the middle part of the flow regulating plate is provided with a through hole for communicating the valve core air outlet hole with the air inlet space, and the fuel gas is shunted to each air outlet channel connecting hole after passing through the flow hole after passing through the valve core air inlet hole, the valve core air outlet hole, the through hole and the air inlet space in sequence.
As a further improvement of the invention, the flow holes are distributed at different positions of the flow regulating plate, and the flow holes can be provided as vent holes or fan-shaped holes with different sizes, and the air inlet area of the flow holes communicated with each air outlet channel is changed along with the valve core in the process of driving the flow regulating plate to rotate.
As a further improvement of the invention, a sealing gasket is arranged between the valve body and the flow regulating plate, a sealing gasket air inlet hole used for communicating with each air outlet channel is arranged on the sealing gasket, and the flow hole is communicated with the air outlet channels through the sealing gasket air inlet hole.
As a further improvement of the invention, the back of the valve body is also provided with a back cover and a back cover sealing ring, the back cover and the valve body are fixedly connected through a fastener, the back cover sealing ring is arranged between the back cover and the valve body, and the back cover and the valve body form the air inlet space after being connected.
As a further improvement of the invention, a spring is also arranged in the air inlet space, two ends of the spring are respectively abutted with the rear cover and the flow regulating plate, and the spring is used for pressing the flow regulating plate and the sealing gasket on the valve body.
Compared with the prior art, the invention has the following beneficial effects:
1. the distribution of the fire power of each air outlet channel is accurately controlled through the flow regulating plate, the adjustability of the plug valve is improved, and therefore the requirement for more accurate fire power seeking in the cooking process by using the gas stove is met;
2. the simultaneous air outlet and air closing control of each air outlet channel are realized through the valve core;
3. the valve body and the flow regulating plate are mutually sealed through the sealing gasket, so that flow intercommunication is prevented.
Drawings
FIG. 1 is an exploded view and an airflow schematic of a multi-channel two-stage precision flow plug valve according to a first embodiment of the present invention;
fig. 2 is a schematic diagram (initial state) of a flow rate adjusting plate corresponding to an outlet channel connecting hole according to a first embodiment of the present invention;
FIG. 3 is a cross-sectional view of FIG. 2 taken along lines A-A and B-B of the present invention;
FIG. 4 is a schematic structural view of the present invention from another perspective of FIG. 2 and a cross-sectional view at C-C at that perspective;
fig. 5 is a schematic diagram (open state) of a flow rate adjusting plate corresponding to an outlet channel connecting hole according to the first embodiment of the present invention;
FIG. 6 is a cross-sectional view of FIG. 5 taken along lines A-A and B-B of the present invention;
FIG. 7 is a schematic structural view of the present invention from another perspective of FIG. 5 and a cross-sectional view taken along line C-C at that perspective;
fig. 8 is a schematic diagram (maximum flow state) of a flow rate adjusting plate corresponding to an outlet channel connecting hole according to the first embodiment of the present invention;
FIG. 9 is a cross-sectional view of FIG. 8 taken along lines A-A and B-B of the present invention;
FIG. 10 is a schematic structural view of the present invention from another perspective of FIG. 8 and a cross-sectional view taken along line C-C at that perspective;
FIG. 11 is an exploded view and an airflow schematic of a two-stage, multi-channel, precise flow plug valve according to a second embodiment of the present invention.
100, valve body in the figure; 110. an air outlet channel; 111. an air outlet channel connecting hole; 120. a valve stem; 130. an air intake space; 140. a sealing gasket; 150. a rear cover; 160. a rear cover sealing ring; 161. a transition port; 170. a spring; 180. an air inlet;
200. a valve core; 210. a valve core air inlet hole; 211. an air inlet hole extension groove; 212. sealing the included angle; 220. a valve core air outlet hole; 221. a connection part;
300. a flow rate adjusting plate; 310. a flow orifice; 311. a through hole;
400. an electromagnetic valve; 410. an air inlet hole of the electromagnetic valve; 420. and an air outlet hole of the electromagnetic valve.
Detailed Description
The following are specific embodiments of the present invention and the technical methods of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Example 1
As shown in fig. 1-10, the present invention provides a multi-channel two-stage accurate flow plug valve, comprising:
a valve body 100 having at least two outlet passages 110;
a spool 200 rotatably provided in the valve body 100;
a flow rate adjusting plate 300 connected to the valve cartridge 200 and rotated in synchronization with the rotation of the valve cartridge 200, the flow rate adjusting plate 300 having a plurality of flow rate holes 310 having different sizes, the valve cartridge 200 being communicated with the respective outlet channels 110 through the flow rate holes 310, wherein,
the air outlet channels 110 are independent, and after the fuel gas enters from the valve core 200, the fuel gas flows into the different air outlet channels 110 through different flow holes 310, and the flow of each air outlet channel 110 is synchronously regulated as the valve core 200 drives the flow regulating plate 300 to rotate.
That is, the plug valve in this embodiment is configured by the flow adjusting plate 300, and only the valve core 200 needs to be controlled to rotate and the flow adjusting plate 300 needs to be driven to rotate, so that the air inlet flow of each air outlet channel 110 can be adjusted, at this time, because the sizes or shapes of the flow holes 310 are different, the flow entering each air outlet channel 110 is different, so that each air outlet channel 110 has different flows, the accurate control of the distribution of the fire of each air outlet channel 110 is realized, the adjustability of the plug valve is improved, and the requirement for more accurate fire seeking in the cooking process by using the gas stove is further met.
Preferably, the valve core 200 has a valve core air inlet 210 and a valve core air outlet 220, the valve core air inlet 210 extends to the side and is formed with an air inlet extending groove 211, the accessible area of the air inlet is enlarged by the air inlet extending groove 211, the tail end of the valve core air outlet 220 is formed with a connecting part 221 by a tail part groove, and the flow regulating plate 300 is connected with the connecting part 221 in an adapting way, thus, the flow regulating plate 300 can be driven to rotate synchronously along with the rotation of the valve core 200, and the air inlet area of the flow hole 310 communicated with each air outlet channel 110 is regulated, so that the regulation of firepower is realized.
Preferably, the valve body 100 is connected with a solenoid valve 400, in this embodiment, the solenoid valve 400 is preferably a self-priming solenoid valve 400, wherein the solenoid valve 400 has a solenoid valve air inlet hole 410 and a solenoid valve air outlet hole 420, and the solenoid valve air inlet hole 410, the solenoid valve air outlet hole 420, and the valve core air inlet hole 210 are sequentially communicated;
specifically, a sealing included angle 212 is formed between the electromagnetic valve 400 and the valve core air inlet 210, when the electromagnetic valve rotates to a certain angle, the electromagnetic valve air outlet 420 is communicated with the valve core air inlet 210, air flow can enter through the valve core air inlet 210 and the valve core air outlet 220, the effect of switching on and off total air inlet is achieved, and the electromagnetic valve 400 automatically opens or closes the electromagnetic valve air outlet 420 through signals.
Preferably, the valve rod 120 is installed on the front surface of the valve body 100, the valve rod 120 is connected with the valve core 200, and the valve core 200 is driven to rotate by the rotation of the valve rod 120, wherein the back surface of the valve body 100 is provided with the air inlet space 130, and the flow regulating plate 300 is positioned in the air inlet space 130.
Further, the valve body 100 is provided with gas outlet channel connecting holes 111 on the back surface where the gas inlet space 130 is located, each gas outlet channel 110 is provided with an independent gas outlet channel connecting hole 111, the gas entering the gas inlet space 130 is finally split into each gas outlet channel connecting hole 111, and then the gas enters each gas outlet channel 110 and is discharged.
Preferably, the middle part of the flow rate adjusting plate 300 has a through hole 311 for communicating the valve cartridge outlet hole 220 with the air inlet space 130, and the gas flowing out from the valve cartridge outlet hole 220 enters the air inlet space 130 through the through hole 311.
In addition, it should be noted that the flow holes 310 are distributed at different positions of the flow adjusting plate 300, and the flow holes 310 may be configured as vent holes or fan-shaped holes with different sizes or other shapes, and the air inlet area of the flow holes 310 communicating with each air outlet channel 110 is changed along with the rotation of the valve core 200 to drive the flow adjusting plate 300, so that the distribution of the fire force of each air outlet channel 110 can be accurately controlled only by rotating the valve rod 120.
Preferably, a sealing gasket 140 is installed between the valve body 100 and the flow regulating plate 300, the sealing gasket 140 is provided with sealing gasket 140 air inlets for communicating with each air outlet channel 110, the flow holes 310 are communicated with the air outlet channels 110 through the sealing gasket 140 air inlets, and the sealing gasket 140 is arranged to enable the valve body 100 and the flow regulating plate 300 to be sealed to each other, so that flow intercommunication is prevented.
Preferably, the back of the valve body 100 is further provided with a back cover 150 and a back cover sealing ring 160, the back cover 150 and the valve body 100 are fixedly connected through a fastener, the back cover sealing ring 160 is arranged between the back cover 150 and the valve body 100, and the back cover 150 and the valve body 100 are connected to form the air inlet space 130.
Preferably, a spring 170 is further disposed in the air intake space 130, two ends of the spring 170 are respectively abutted against the rear cover 150 and the flow rate adjusting plate 300, and the spring 170 is used for pressing the flow rate adjusting plate 300 and the gasket 140 against the valve body 100.
Example two
As shown in fig. 11, the difference between the second embodiment and the first embodiment is that the second embodiment provides a valve body 100 having a structure different from that of the first embodiment, and the positions of the air outlet channels 110 are different, and the installation positions of the solenoid valves 400 are also different, which results in a change in the flow direction of the fuel gas, specifically:
in the second embodiment, the back cover seal 160 has a transition port 161, and at the same time, an air inlet 180 is additionally formed on the back of the valve body 100, after the fuel gas flows in from the air inlet 180, the fuel gas enters the solenoid valve air inlet 410 from the transition port 161, flows into the valve core air inlet 210 from the solenoid valve air outlet 420, and the fuel gas flows out from the valve core air outlet 220 in the same direction as in the first embodiment.
The technical means disclosed by the scheme of the invention is not limited to the technical means disclosed by the technical means, and also comprises the technical scheme formed by any combination of the technical features. The foregoing is a specific embodiment of the invention, it will be appreciated by those skilled in the art that modifications and variations may be made without departing from the principles of the invention, and such modifications and variations are to be regarded as being within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, descriptions such as those referred to herein as "first," "second," "a," and the like are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention.
Claims (10)
1. A multi-channel two-stage precision flow plug valve, comprising:
a valve body having at least two gas outlet passages;
a valve element rotatably disposed within the valve body;
a flow rate adjusting plate connected with the valve core and synchronously rotating along with the rotation of the valve core, wherein the flow rate adjusting plate is provided with a plurality of flow rate holes with different sizes, the valve core is communicated with each air outlet channel through the flow rate holes,
each air outlet channel is independent, and after gas enters from the valve core, the gas flows into different air outlet channels through different flow holes respectively, and the flow of each air outlet channel is synchronously regulated along with the rotation of the valve core driving the flow regulating plate.
2. The multi-channel two-stage accurate flow plug valve according to claim 1, wherein the valve core is provided with a valve core air inlet hole and a valve core air outlet hole, the valve core air inlet hole extends to the side part and is provided with an air inlet hole extending groove, the tail end of the valve core air outlet hole forms a connecting part by being provided with a tail part groove, and the flow regulating plate is connected with the connecting part in an adapting way.
3. The multi-channel two-stage accurate flow plug valve according to claim 2, wherein the valve body is connected with a solenoid valve, the solenoid valve is provided with a solenoid valve air inlet hole and a solenoid valve air outlet hole, the solenoid valve air inlet hole, the solenoid valve air outlet hole and the valve core air inlet hole are communicated in sequence, wherein,
a sealing included angle is formed between the air outlet hole of the electromagnetic valve and the air inlet hole of the valve core;
the electromagnetic valve automatically opens or closes the air outlet hole of the electromagnetic valve through signals.
4. The multi-channel two-stage accurate flow plug valve according to claim 2, wherein a valve rod is mounted on the front surface of the valve body, the valve rod is connected with the valve core, an air inlet space is formed on the back surface of the valve body, and the flow regulating plate is located in the air inlet space.
5. The multi-channel two-stage accurate flow plug valve according to claim 4, wherein the valve body is provided with air outlet channel connecting holes on the back surface where the air inlet space is located, and each air outlet channel is provided with an independent air outlet channel connecting hole.
6. The multi-channel two-stage accurate flow plug valve according to claim 5, wherein the middle part of the flow regulating plate is provided with a through hole for communicating the valve core air outlet hole with the air inlet space, and the fuel gas is split into each air outlet channel connecting hole after passing through the flow hole after passing through the valve core air inlet hole, the valve core air outlet hole, the through hole and the air inlet space in sequence.
7. The multi-channel two-stage accurate flow plug valve according to claim 1, wherein the flow holes are distributed at different positions of the flow regulating plate, and the flow holes can be set as vent holes or fan-shaped holes with different sizes, and the air inlet area of the flow holes communicated with each air outlet channel is changed along with the rotation of the flow regulating plate driven by the valve core.
8. The multi-channel two-stage accurate flow plug valve according to claim 1, wherein a sealing gasket is installed between the valve body and the flow regulating plate, sealing gasket air inlet holes for communicating with each air outlet channel are formed in the sealing gasket, and the flow holes are communicated with the air outlet channels through the sealing gasket air inlet holes.
9. The multi-channel two-stage accurate flow plug valve according to claim 4, wherein a back cover and a back cover sealing ring are further installed on the back surface of the valve body, the back cover and the valve body are fixedly connected through a fastener, the back cover sealing ring is arranged between the back cover and the valve body, and the back cover and the valve body are connected to form the air inlet space.
10. The multi-channel two-stage accurate flow plug valve according to claim 9, wherein a spring is further arranged in the air inlet space, two ends of the spring are respectively abutted against the rear cover and the flow regulating plate, and the spring is used for pressing the flow regulating plate and the sealing gasket on the valve body.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202311617102.3A CN117823668A (en) | 2023-11-28 | 2023-11-28 | Multi-channel two-stage accurate flow plug valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202311617102.3A CN117823668A (en) | 2023-11-28 | 2023-11-28 | Multi-channel two-stage accurate flow plug valve |
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CN117823668A true CN117823668A (en) | 2024-04-05 |
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CN202311617102.3A Pending CN117823668A (en) | 2023-11-28 | 2023-11-28 | Multi-channel two-stage accurate flow plug valve |
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CN (1) | CN117823668A (en) |
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2023
- 2023-11-28 CN CN202311617102.3A patent/CN117823668A/en active Pending
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