CN110989710A - Intelligent pressure adjusting device and method for pressure reducing valve - Google Patents
Intelligent pressure adjusting device and method for pressure reducing valve Download PDFInfo
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- CN110989710A CN110989710A CN201911402876.8A CN201911402876A CN110989710A CN 110989710 A CN110989710 A CN 110989710A CN 201911402876 A CN201911402876 A CN 201911402876A CN 110989710 A CN110989710 A CN 110989710A
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- water
- pressure
- cavity
- movable spoiler
- flow guide
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
- G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
- G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
- G05D16/2026—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means with a plurality of throttling means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The invention discloses an intelligent pressure regulating device of a pressure reducing valve, which comprises a valve body, wherein a water inlet and a water outlet are arranged on the valve body, the valve body is sequentially provided with a first communicating cavity, a transition cavity and a second communicating cavity from bottom to top, the water inlet is communicated with the first communicating cavity, and the water outlet is communicated with the second communicating cavity; the inner side wall of the first communicating cavity is connected with the same movable spoiler through a plurality of springs, a plurality of overflow ports for water outlet are formed in the movable spoiler, and a power generation device is arranged in the movable spoiler. According to the invention, the water pressure of the water flow is primarily controlled by controlling the opening and closing of the first flow guide port, meanwhile, the water pressure of the water flow can be reduced again by arranging the flow guide vanes, and then the power generation device can provide kinetic energy for a subsequent pressure sensor and a servo motor by arranging the rotating rod, so that the opening and closing of the second flow guide port are controlled, and the reduction of the water pressure of the water flow is realized again by shunting and hedging.
Description
Technical Field
The invention relates to the technical field of pressure reducing valves, in particular to an intelligent pressure adjusting device and method for a pressure reducing valve.
Background
A pressure relief valve is one that reduces the inlet pressure to some desired outlet pressure. When the current reducing valve is used, the mode of once regulating water pressure can be realized, the times of regulating the water pressure are limited, the regulation of some high-pressure emergent water flows is limited, the obvious pressure reducing effect cannot be realized, and meanwhile, the pressure reduction is realized through the water pressure effect at present, and the regulation cannot be realized according to the size of the water pressure.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an intelligent pressure regulating device and method for a pressure reducing valve.
In order to achieve the purpose, the invention adopts the following technical scheme:
the pressure intelligent adjusting device for the pressure reducing valve comprises a valve body, wherein a water inlet and a water outlet are formed in the valve body, the valve body is sequentially provided with a first communicating cavity, a transition cavity and a second communicating cavity from bottom to top in a communicating mode, the water inlet is communicated with the first communicating cavity, and the water outlet is communicated with the second communicating cavity; the inner side wall of the first communicating cavity is connected with the same movable spoiler through a plurality of springs, the movable spoiler is provided with a plurality of overflow ports for water outlet, a power generation device is arranged in the movable spoiler, two sides of the inner side wall of the first communicating cavity are communicated with the transition cavity through the first flow guide port, and the movable spoiler blocks the first flow guide port in an initial state; both sides of the inner side wall of the transition cavity are communicated with the water outlet through second flow guide ports, and the inlets of the second flow guide ports on the side wall of the transition cavity are provided with pre-flow guide devices; and a pressure reducing device for reducing water pressure is arranged in the second communicating cavity.
Preferably, the outer side wall of the movable spoiler is provided with a sealing rubber layer, and the sealing rubber layer is in contact with the inner side wall of the first communicating chamber.
Preferably, the power generation device is including setting up the installation cavity in the activity spoiler, the equal fixedly connected with permanent magnet of both sides inner wall of installation cavity, and two permanent magnet relative one side magnetism is opposite, two be provided with the current conducting plate between the permanent magnet, the top of current conducting plate is provided with the insulating connecting block that is the prism, the lower extreme of current conducting plate is provided with electrically conductive cylinder, be provided with the contact disc with electrically conductive cylinder contact in the installation cavity.
Preferably, the pre-diversion device comprises a servo motor fixedly connected to the outer side wall of the valve body, an output end of the servo motor is fixedly connected with a double-threaded rod, the outer side wall of the double-threaded rod is in threaded connection with two blocking blocks symmetrically arranged, the blocking blocks are located at the inlet end of the second diversion port, and the cross section of each blocking block is in a right-angled triangle shape.
Preferably, pressure relief device includes fixed block of fixed connection on second intercommunication intracavity side wall, it is connected with the bull stick to rotate on the fixed block, a plurality of water conservancy diversion leaves of top fixedly connected with of bull stick, the bottom of bull stick runs through movable spoiler and extends to the installation cavity in, and the bull stick rotates with movable spoiler to be connected, the bottom of bull stick is provided with and is used for the gliding spout of connecting block.
Preferably, the water inlet and the water outlet of the valve body are fixedly connected with connecting flanges, a pressure sensor is arranged in the connecting flange on the water outlet, and the pressure sensor is connected with the inner side walls of the connecting flanges through connecting shafts.
A method for a pressure reducing valve pressure intelligent adjusting device comprises the following processes:
s1, connecting the valve body with an external water inlet pipe and an external water outlet pipe through a connecting flange to realize the communication between the valve body and the external water inlet pipe and the external water outlet pipe;
s2, when the water flow is small, the water body enters the water inlet from the external water inlet pipe and enters the transition cavity from the overflow port of the movable spoiler in the first communicating cavity, and then flows out from the water outlet through the second communicating cavity;
when the water flow is large, the water flow can not enter the transition cavity from the overflow port of the movable spoiler in the first communicating cavity completely, then the residual water flow which does not pass can form large water pressure at the bottom of the movable spoiler, and when the water pressure is larger than the elastic potential energy of the spring, the movable spoiler can move upwards under the action of the water pressure, at the moment, the first flow guide ports on the two sides of the movable spoiler are opened, then the water body can enter the transition cavity from the first flow guide ports, the water pressure of the water flow is reduced by the way of water flow dispersion, then the water flow in the transition cavity enters the water outlet through the second communicating cavity, wherein the upward water flow potential can be reduced by the arrangement of the flow guide vanes, namely, part of the upward water potential can be dispersed into the horizontal water potential, so that the water pressure of the upward water flow is reduced, wherein the kinetic energy of the water flow can be converted into the rotating potential energy of the flow guide vanes, and the rotation of the rotating rod can, the connecting block drives the current-conducting plate to rotate, so that the current-conducting plate performs motion of cutting a magnetic induction line in the magnetic fields of the two permanent magnets, the current-conducting plate is electrically conductive, and the electrically conductive current-conducting plate transmits electricity to the contact disc through the bottom conductive cylinder, so that power can be supplied to a servo motor and a pressure sensor;
wherein pressure sensor passes through the pressure of response rivers to the work of control private clothes motor, will make two movements that block that the piece is relative through double threaded rod when servo motor during operation promptly, then open second water conservancy diversion mouth, thereby realize the reposition of redundant personnel with the rivers of transition intracavity, then reduce the water pressure of rivers, secondly, form the offset from the rivers that second water conservancy diversion mouth came out and the rivers that second intercommunication chamber came out, then reduce the potential energy of rivers through the offset, thereby reduce the water pressure of rivers once more.
The invention has the beneficial effects that:
according to the invention, the water pressure of the water flow is primarily controlled by controlling the opening and closing of the first flow guide port, meanwhile, the water pressure of the water flow can be reduced again by arranging the flow guide vanes, and then the power generation device can provide kinetic energy for a subsequent pressure sensor and a servo motor by arranging the rotating rod, so that the opening and closing of the second flow guide port are controlled, and the reduction of the water pressure of the water flow is realized again by shunting and hedging.
Drawings
Fig. 1 is a schematic structural diagram of a first usage state of an intelligent pressure regulating device for a pressure reducing valve according to the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a schematic structural diagram of a second usage state of the intelligent pressure regulating device for a pressure reducing valve according to the present invention;
fig. 4 is a schematic structural diagram of a third usage state of the intelligent pressure regulating device for the pressure reducing valve according to the present invention.
In the figure: the device comprises a valve body 1, a water inlet 2, a water outlet 3, a first communicating cavity 4, a transition cavity 5, a second communicating cavity 6, a movable spoiler 7, an overflow port 8, a first flow guide port 9, a second flow guide port 10, an installation cavity 11, a permanent magnet 12, a conductive plate 13, a connecting block 14, a contact disc 15, a servo motor 16, a double-head threaded rod 17, a blocking block 18, a rotating rod 19, a flow guide vane 20, a pressure sensor 21 and a connecting flange 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-2, an intelligent pressure regulating device for a pressure reducing valve comprises a valve body 1, wherein a water inlet 2 and a water outlet 3 are arranged on the valve body 1, the water inlet 2 and the water outlet 3 of the valve body 1 are both fixedly connected with a connecting flange 22, a pressure sensor 21 is arranged in the connecting flange 22 positioned on the water outlet 3, the pressure sensor 21 is connected with the inner side wall of the connecting flange 22 through a connecting shaft, so that the valve body 1 is conveniently connected with an external water inlet pipe and an external water outlet pipe through the connecting flange 22, the valve body 1 is sequentially provided with a first communicating cavity 4, a transition cavity 5 and a second communicating cavity 6 from bottom to top, the water inlet 2 is communicated with the first communicating cavity 4, and the water outlet 3 is communicated with;
the inner side wall of the first communication cavity 4 is connected with the same movable spoiler 7 through a plurality of springs, the outer side wall of the movable spoiler 7 is provided with a sealing rubber layer, the sealing rubber layer is in contact with the inner side wall of the first communication cavity 4, the sealing performance of the movable spoiler 7 in the up-and-down sliding process in the first communication cavity 4 is ensured through the arrangement of the sealing rubber layer, the movable spoiler 7 is provided with a plurality of overflow ports 8 for water outlet, a power generation device is arranged in the movable spoiler 7, both sides of the inner side wall of the first communication cavity 4 are communicated with the transition cavity 5 through first flow guide ports 9, and the movable spoiler 7 blocks the first flow guide ports 9 in an initial state;
it should be noted that: the power generation device comprises an installation cavity 11 arranged in a movable spoiler 7, permanent magnets 12 are fixedly connected to the inner walls of two sides of the installation cavity 11, the opposite sides of the two permanent magnets 12 are opposite in magnetism, a conductive plate 13 is arranged between the two permanent magnets 12, an insulating prism-shaped connecting block 14 is arranged above the conductive plate 13, a conductive cylinder is arranged at the lower end of the conductive plate 13, a contact disc 15 in contact with the conductive cylinder is arranged in the installation cavity 11, the conductive plate 13 cuts magnetic induction lines under the action of magnetic fields generated by the two permanent magnets 12 to generate current, the current supplies power to a subsequent pressure sensor 21 and a servo motor 16, namely the current generated on the conductive plate 13 is led into the contact disc 15 through the conductive cylinder, the contact disc 15 is electrically connected with the pressure sensor 21 and the servo motor 16 through leads, and the pressure sensor 21 and the servo motor 16 are controlled by a controller, wherein the electrical connections and control of the controller to the pressure sensor 21 and the servo motor 16 are prior art and again not detailed.
Wherein, both sides of the inner side wall of the transition cavity 5 are communicated with the water outlet 3 through a second diversion port 10, and an inlet of the second diversion port 10 positioned on the side wall of the transition cavity 5 is provided with a pre-diversion device;
further, the guiding device includes servo motor 16 of fixed connection on the valve body 1 lateral wall in advance, servo motor 16's output fixedly connected with double threaded rod 17, double threaded rod 17's lateral wall threaded connection has the piece 18 that blocks that two symmetries set up, and block that piece 18 is located second water conservancy diversion mouth 10 entrance point, the cross-section that blocks piece 18 is right triangle, block piece 18 relative motion under servo motor 16's effect, open second water conservancy diversion mouth 10, then rivers will enter into delivery port 3 through second water conservancy diversion mouth 10 in, because second water conservancy diversion mouth 10 slope sets up, then form the offset from rivers that second water conservancy diversion mouth 10 came out and the rivers that second intercommunication chamber 6 came out, then reduce the potential energy of rivers through the offset, thereby reduce the water pressure of rivers once more.
Wherein, a pressure reducing device for reducing water pressure is arranged in the second communicating cavity 6;
further, pressure relief device includes fixed block of fixed connection on 6 inside walls in second intercommunication chamber, it is connected with bull stick 19 to rotate on the fixed block, a plurality of water conservancy diversion leaves 20 of top fixedly connected with of bull stick 19, the bottom of bull stick 19 runs through movable spoiler 7 and extends to installation cavity 11 in, and bull stick 19 rotates with movable spoiler 7 and is connected, the bottom of bull stick 19 is provided with and is used for the gliding spout of connecting block 14, through the setting of water conservancy diversion leaf 20 in the pressure relief device like this, can reduce the ascending water potential of rivers, be about to partial ascending water potential dispersion becomes horizontal water potential, thereby reduce the water pressure of rivers that make progress, wherein the kinetic energy of rivers can be converted into water conservancy diversion leaf 20 pivoted potential energy, and the rotation of water conservancy diversion leaf 20 will drive the rotation of bull stick 19, thereby the work of the generating device after the drive.
The use method of the intelligent pressure regulating device of the pressure reducing valve comprises the following steps:
s1, connecting the valve body 1 with an external water inlet pipe and an external water outlet pipe through the connecting flange 22, and realizing the communication between the valve body 1 and the external water inlet pipe and the external water outlet pipe;
s2, referring to the first use state of FIG. 1, when the water flow is small, the water enters the water inlet from the external water inlet pipe and enters the transition cavity 5 from the overflow port 8 of the movable spoiler 7 in the first communicating cavity 4, so as to flow out from the water outlet through the second communicating cavity 6;
referring to the second usage state of fig. 3, when the water flow is large, the water flow cannot enter the transition cavity 5 from the overflow port 8 of the movable spoiler 7 in the first communicating cavity 4, then the remaining water flow which does not pass through forms a large water pressure at the bottom of the movable spoiler 7, and when the water pressure is larger than the elastic potential energy of the spring, the movable spoiler 7 moves upward under the action of the water pressure, at this time, the first flow guide ports 9 on both sides of the movable spoiler 7 are opened, so that the water body enters the transition cavity 5 from the first flow guide ports 9, the water pressure of the water flow is reduced by the way of water flow dispersion, and then the water flow in the transition cavity 5 enters the water outlet through the second communicating cavity 6, wherein the arrangement of the flow guide vanes 20 can reduce the upward water flow potential, that is to disperse a part of the upward water potential into a horizontal water potential, thereby reducing the water pressure of the upward water flow, the kinetic energy of the water flow is converted into potential energy of rotation of the diversion blades 20, the rotation of the diversion blades 20 drives the rotation rod 19 to rotate, so that the connection block 14 drives the conductive plate 13 to rotate, the conductive plate 13 makes a motion of cutting a magnetic induction line in the magnetic fields of the two permanent magnets 12, the conductive plate 13 is conductive, and the conductive plate 13 transmits electricity to the contact disc 15 through a conductive cylinder at the bottom, so that the servo motor 16 and the pressure sensor 21 can be conveniently powered;
referring to the third usage state of fig. 4, the pressure sensor 21 senses the pressure of the water flow, so as to control the operation of the servo motor 16, that is, when the servo motor 16 operates, the two blocking blocks 18 move relatively through the double-threaded rod 17, and then the second diversion port 10 is opened, so as to divide the water flow in the transition cavity 5, and then reduce the water pressure of the water flow, and secondly, the water flow coming out from the second diversion port 10 and the water flow coming out from the second communication cavity 6 form an opposite impact, and then reduce the potential energy of the water flow through the opposite impact, so as to reduce the water pressure of the water flow again.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The pressure intelligent adjusting device of the pressure reducing valve is characterized by comprising a valve body (1), wherein a water inlet (2) and a water outlet (3) are formed in the valve body (1), the valve body (1) is sequentially provided with a first communicating cavity (4), a transition cavity (5) and a second communicating cavity (6) from bottom to top in a communicating mode, the water inlet (2) is communicated with the first communicating cavity (4), and the water outlet (3) is communicated with the second communicating cavity (6);
the inner side wall of the first communicating cavity (4) is connected with the same movable spoiler (7) through a plurality of springs, a plurality of overflow ports (8) for water outlet are formed in the movable spoiler (7), a power generation device is arranged in the movable spoiler (7), two sides of the inner side wall of the first communicating cavity (4) are communicated with the transition cavity (5) through first flow guide ports (9), and the movable spoiler (7) blocks the first flow guide ports (9) in an initial state;
both sides of the inner side wall of the transition cavity (5) are communicated with the water outlet (3) through second flow guide ports (10), and a pre-flow guide device is arranged at an inlet of the second flow guide ports (10) on the side wall of the transition cavity (5);
and a pressure reducing device for reducing water pressure is arranged in the second communicating cavity (6).
2. The intelligent pressure regulating device of a pressure reducing valve according to claim 1, characterized in that the outer side wall of the movable spoiler (7) is provided with a sealing rubber layer, and the sealing rubber layer is in contact with the inner side wall of the first communicating chamber (4).
3. The intelligent pressure regulating device of the pressure reducing valve according to claim 1, wherein the electricity generating device comprises an installation cavity (11) arranged in the movable spoiler (7), permanent magnets (12) are fixedly connected to inner walls of two sides of the installation cavity (11), opposite sides of the two permanent magnets (12) are opposite in magnetism, an electric conducting plate (13) is arranged between the two permanent magnets (12), an insulating prism-shaped connecting block (14) is arranged above the electric conducting plate (13), an electric conducting conductive cylinder is arranged at the lower end of the electric conducting plate (13), and a contact disc (15) in contact with the electric conducting cylinder is arranged in the installation cavity (11).
4. The intelligent pressure regulating device for the pressure reducing valve according to claim 1, wherein the pre-diversion device comprises a servo motor (16) fixedly connected to the outer side wall of the valve body (1), the output end of the servo motor (16) is fixedly connected with a double-threaded rod (17), the outer side wall of the double-threaded rod (17) is in threaded connection with two symmetrically-arranged blocking blocks (18), the blocking blocks (18) are located at the inlet end of the second diversion port (10), and the cross section of each blocking block (18) is in a shape of a right triangle.
5. The intelligent pressure regulating device of the pressure reducing valve according to claim 1, wherein the pressure reducing device comprises a fixed block fixedly connected to the inner side wall of the second communicating cavity (6), a rotating rod (19) is connected to the fixed block in a rotating manner, a plurality of flow guide vanes (20) are fixedly connected to the top of the rotating rod (19), the bottom of the rotating rod (19) penetrates through the movable spoiler (7) and extends into the installation cavity (11), the rotating rod (19) is rotatably connected with the movable spoiler (7), and a sliding chute for sliding the connecting block (14) is formed in the bottom of the rotating rod (19).
6. The intelligent pressure regulating device of the pressure reducing valve according to claim 1, wherein a connecting flange (22) is fixedly connected to both the water inlet (2) and the water outlet (3) of the valve body (1), a pressure sensor (21) is arranged in the connecting flange (22) on the water outlet (3), and the pressure sensor (21) is connected with the inner side wall of the connecting flange (22) through a connecting shaft.
7. A method for an intelligent pressure regulating device of a pressure reducing valve is characterized in that: the method comprises the following steps:
s1, connecting the valve body with an external water inlet pipe and an external water outlet pipe through a connecting flange to realize the communication between the valve body and the external water inlet pipe and the external water outlet pipe;
s2, when the water flow is small, the water body enters the water inlet from the external water inlet pipe and enters the transition cavity from the overflow port of the movable spoiler in the first communicating cavity, and then flows out from the water outlet through the second communicating cavity;
when the water flow is large, the water flow can not enter the transition cavity from the overflow port of the movable spoiler in the first communicating cavity completely, then the residual water flow which does not pass can form large water pressure at the bottom of the movable spoiler, and when the water pressure is larger than the elastic potential energy of the spring, the movable spoiler can move upwards under the action of the water pressure, at the moment, the first flow guide ports on the two sides of the movable spoiler are opened, then the water body can enter the transition cavity from the first flow guide ports, the water pressure of the water flow is reduced by the way of water flow dispersion, then the water flow in the transition cavity enters the water outlet through the second communicating cavity, wherein the upward water flow potential can be reduced by the arrangement of the flow guide vanes, namely, part of the upward water potential can be dispersed into the horizontal water potential, so that the water pressure of the upward water flow is reduced, wherein the kinetic energy of the water flow can be converted into the rotating potential energy of the flow guide vanes, and the rotation of the rotating rod can, the connecting block drives the current-conducting plate to rotate, so that the current-conducting plate performs motion of cutting a magnetic induction line in the magnetic fields of the two permanent magnets, the current-conducting plate is electrically conductive, and the electrically conductive current-conducting plate transmits electricity to the contact disc through the bottom conductive cylinder, so that power can be supplied to a servo motor and a pressure sensor;
wherein pressure sensor passes through the pressure of response rivers to the work of control private clothes motor, will make two movements that block that the piece is relative through double threaded rod when servo motor during operation promptly, then open second water conservancy diversion mouth, thereby realize the reposition of redundant personnel with the rivers of transition intracavity, then reduce the water pressure of rivers, secondly, form the offset from the rivers that second water conservancy diversion mouth came out and the rivers that second intercommunication chamber came out, then reduce the potential energy of rivers through the offset, thereby reduce the water pressure of rivers once more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911402876.8A CN110989710B (en) | 2019-12-31 | 2019-12-31 | Pressure intelligent regulating device and method for pressure reducing valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911402876.8A CN110989710B (en) | 2019-12-31 | 2019-12-31 | Pressure intelligent regulating device and method for pressure reducing valve |
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| CN110989710A true CN110989710A (en) | 2020-04-10 |
| CN110989710B CN110989710B (en) | 2023-06-20 |
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| CN201911402876.8A Active CN110989710B (en) | 2019-12-31 | 2019-12-31 | Pressure intelligent regulating device and method for pressure reducing valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113213561A (en) * | 2021-03-24 | 2021-08-06 | 傅勇杰 | Voltage stabilizing protection tube for intelligent water purifier and application thereof |
| CN114251513A (en) * | 2021-12-24 | 2022-03-29 | 江苏大学 | Pressure reducing valve |
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| CN105840886A (en) * | 2016-06-07 | 2016-08-10 | 镇江闽乐建材有限公司 | Novel one-way valve |
| CN107345585A (en) * | 2016-05-06 | 2017-11-14 | 青岛经济技术开发区海尔热水器有限公司 | A kind of pressure-reducing valve and water heater |
| CN110513520A (en) * | 2019-08-15 | 2019-11-29 | 邵金国 | A kind of buffering filtering type pressure reducing valve |
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| US20030106588A1 (en) * | 2001-12-12 | 2003-06-12 | Sun Hydraulics Corporation | Pilot operated pressure valve |
| US20110114203A1 (en) * | 2008-07-08 | 2011-05-19 | Walvoil S.P.A. | Pressure relief valve |
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| CN113213561A (en) * | 2021-03-24 | 2021-08-06 | 傅勇杰 | Voltage stabilizing protection tube for intelligent water purifier and application thereof |
| CN114251513A (en) * | 2021-12-24 | 2022-03-29 | 江苏大学 | Pressure reducing valve |
| CN114251513B (en) * | 2021-12-24 | 2024-04-09 | 苏州阀医生流体控制技术有限公司 | Pressure reducing valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110989710B (en) | 2023-06-20 |
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