CN114645948A - Manual-automatic pressure control valve - Google Patents

Manual-automatic pressure control valve Download PDF

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Publication number
CN114645948A
CN114645948A CN202210156969.2A CN202210156969A CN114645948A CN 114645948 A CN114645948 A CN 114645948A CN 202210156969 A CN202210156969 A CN 202210156969A CN 114645948 A CN114645948 A CN 114645948A
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CN
China
Prior art keywords
valve
cavity
water outlet
water inlet
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210156969.2A
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Chinese (zh)
Inventor
霍达文
陈炯亮
区家显
胡健生
杨正安
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUANGDONG YONGQUAN VALVE TECHNOLOGY CO LTD
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GUANGDONG YONGQUAN VALVE TECHNOLOGY CO LTD
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Application filed by GUANGDONG YONGQUAN VALVE TECHNOLOGY CO LTD filed Critical GUANGDONG YONGQUAN VALVE TECHNOLOGY CO LTD
Priority to CN202210156969.2A priority Critical patent/CN114645948A/en
Publication of CN114645948A publication Critical patent/CN114645948A/en
Pending legal-status Critical Current

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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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
    • F16K31/365—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor the fluid acting on a diaphragm
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles
    • 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
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0025—Electrical or magnetic means
    • F16K37/005—Electrical or magnetic means for measuring fluid parameters

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

The invention discloses a manual-automatic integrated pressure control valve, which comprises a main valve, a water inlet pipe and a water outlet pipe, wherein a valve rod, a valve core, a water inlet cavity, a water outlet cavity and a pressure cavity are arranged in the main valve, the pressure cavity is divided into an upper cavity and a lower cavity by an elastic diaphragm, the valve core is arranged at the joint of the water inlet cavity and the water outlet cavity, the valve rod is connected with the elastic diaphragm and the valve core, the water inlet pipe is communicated with the water inlet cavity and the upper cavity, a first electromagnetic valve and a first switch valve which are connected in parallel are arranged on the water inlet pipe, the water outlet pipe is communicated with the upper cavity and the water inlet cavity, a second electromagnetic valve and a pilot valve which are connected in parallel are arranged on the water outlet pipe, the opening degree of the pressure control valve is electrically controlled by adopting an electromagnetic valve group under normal conditions, and when a control system is abnormal, the manual control can be switched to the pilot valve at any time.

Description

Manual-automatic pressure control valve
Technical Field
The invention relates to the technical field of control valves, in particular to a manual-automatic integrated pressure control valve.
Background
The traditional pressure control valve is a self-operated hydraulic control valve controlled by a pilot valve.
Currently, the existing pressure control valves have the following problems:
1. the method cannot be realized completely: the pressure of an upper cavity of a traditional pressure control valve is communicated with the pressure of an outlet, the pressure exists at the outlet of the valve all the time, a certain water pressure can be stored in the upper cavity of the valve all the time, water in the upper cavity cannot be completely discharged, the opening degree of the valve is limited to a certain degree, and meanwhile, once the pressure of the inlet end is too low, the valve cannot be completely opened, so that normal supply is influenced;
2. the intelligent control can not be realized: the traditional pressure control valve only can control the outlet pressure of the valve by manually adjusting the position of a guide valve ejector rod, the outlet pressure is difficult to realize intelligent control, and a mechanical guide valve belongs to a wearing part and needs a professional maintainer to integrally repair and replace parts;
3. easy blocking: in order to control the cost, a flow passage of the pilot valve is generally small, the flow passage is tortuous and is easily blocked by silt or corrosion, for example, in the chinese patent with the publication number CN214534699U, an automatic control valve structure is disclosed, which is an intelligent control valve for controlling the position of the pilot valve through an electromagnetic valve, in order to ensure normal drinking of residents, the control valve needs to be maintained regularly, that is, after the intelligent control valve is used for a period of time, a professional is required to clean or replace internal parts of the pilot valve, so that the pilot valve is prevented from being broken down.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a manual-automatic integrated pressure control valve, which can electrically control the opening of the valve through a solenoid valve set, and can also be switched to a pilot valve to manually control the opening of the valve.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a manual-automatic integrated pressure control valve comprising:
the water outlet device comprises a main valve, a valve rod, a valve core, a water inlet cavity, a water outlet cavity and a pressure cavity arranged above the water inlet cavity and the water outlet cavity, wherein an elastic diaphragm is arranged in the pressure cavity, the pressure cavity is divided into an upper cavity and a lower cavity by the elastic diaphragm, the valve rod is connected with the elastic diaphragm and the valve core, and the valve core is arranged at the joint of the water inlet cavity and the water outlet cavity;
the water inlet pipe is communicated with the water inlet cavity and the upper cavity, and a first electromagnetic valve and a first switch valve which are connected in parallel are arranged on the water inlet pipe;
and the water outlet pipe is communicated with the upper cavity and the water outlet cavity, and a second electromagnetic valve and a pilot valve which are connected in parallel are arranged on the water outlet pipe.
Preferably, the lower chamber is provided with a vent hole, and the vent hole is communicated with the water outlet cavity.
Preferably, the device comprises a three-way valve A and a three-way valve B; the three-way valve A is respectively communicated with the second electromagnetic valve, the water outlet cavity and the outside atmosphere; the three-way valve B is respectively communicated with the lower cavity, the water outlet cavity and the outside atmosphere.
Preferably, a standby electromagnetic valve A is arranged on the water inlet pipe and is connected with the first electromagnetic valve in parallel; and a standby electromagnetic valve B is arranged on the water outlet pipe and connected with the second electromagnetic valve in parallel.
Preferably, the system comprises a control system, wherein the control system is connected with an alarm system, a pressure sensor A, a pressure sensor B and a flowmeter; the pressure sensor A is used for monitoring the pressure on the water inlet pipe; the pressure sensor B is used for monitoring the pressure on the water outlet pipe; the flowmeter is used for monitoring the water flow in the main valve.
Preferably, a second switch valve is arranged on the water outlet pipe, the second switch valve is connected with the second electromagnetic valve in series, and the second switch valve is arranged at the downstream of the second electromagnetic valve.
Preferably, the first electromagnetic valve and the second electromagnetic valve are vertically arranged in a waterproof box, the first electromagnetic valve and the second electromagnetic valve comprise an electric coil assembly, a vertical bolt is arranged in the waterproof box, and the electric coil assembly is inserted into the bolt and fixed in the waterproof box through a nut.
Preferably, the main valve comprises a valve body, an upper valve cover and a lower valve cover, the valve body is connected with the lower valve cover, the upper valve cover and the lower valve cover form the pressure cavity, and a through hole for the valve rod to pass through is formed in the lower valve cover.
Preferably, two mounting plates are arranged in the main valve, the elastic diaphragm is arranged between the two mounting plates, the upper end of the valve rod penetrates through the two mounting plates and the elastic diaphragm, and the lower end of the valve rod is connected with the valve core.
Preferably, the valve core is arranged in the valve body, the valve core comprises an adjusting seat and a supporting column, and the valve rod penetrates through the through hole and is connected with the adjusting seat.
The invention has the beneficial effects that:
the invention is controlled manually and automatically, and in a closed control mode, the opening degree of the valve can be electrically controlled by the electromagnetic valve group or can be switched to be manually controlled by the pilot valve. Under normal conditions, the opening of the valve is electrically controlled by the electromagnetic valve group, and only when the control system is abnormal, the manual control is switched to the pilot valve. The electromagnetic valve is used for replacing the traditional pilot valve to work, the electromagnetic valve has no complex mechanical mechanism, the flow area is large, the blockage is not easy to block, and the frequent maintenance is avoided.
Drawings
Fig. 1 is a schematic structural view of a manual-automatic integrated pressure control valve according to embodiment 1.
Fig. 2 is a schematic view of the main valve in embodiment 1.
Fig. 3 is a schematic structural view of the first solenoid valve or the second solenoid valve in embodiment 1.
Fig. 4 is a schematic configuration diagram of embodiment 2 in the closed control mode.
Fig. 5 is a schematic structural view when embodiment 2 is in the outward discharge control mode.
In the figure: 1. a main valve; 101. a valve stem; 102. a valve core; 1021. an adjusting seat; 1022. a support pillar; 103. a water inlet cavity; 104. a water outlet cavity; 105. a pressure chamber; 1051. an upper chamber; 1052. a lower chamber; 106. an elastic diaphragm; 107. a vent hole; 108. a valve body; 109. an upper valve cover; 110. a lower valve cover; 111. mounting a plate; 120. an accommodating chamber; 2. a water inlet pipe; 3. a water outlet pipe; 4. a water inlet channel; 5. a water outlet channel; 6. a first solenoid valve; 7. a first on-off valve; 8. a second solenoid valve; 9. a pilot valve; 10. a second on-off valve; 11. a connecting pipe; 12. a control system; 13. a power supply system; 14. a standby electromagnetic valve A; 15. a standby electromagnetic valve B; 16. a waterproof box; 17. an electrical coil assembly; 18. a bolt; 19. a nut; 20. a three-way valve A; 21. a three-way valve B; 22. and a third on-off valve.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described below with reference to the accompanying drawings and embodiments.
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Example 1
As shown in fig. 1, the present embodiment provides a manual-automatic integrated pressure control valve, which includes a main valve 1, a water inlet pipe 2 and a water outlet pipe 3, wherein the water inlet pipe 2 is communicated with a water inlet channel 4, the water outlet pipe 3 is communicated with a water outlet channel 5, and the main valve 1 is used for controlling the opening and closing of the water inlet pipe 2 entering the water outlet pipe 3 and the opened water flow.
As shown in FIG. 2, a valve stem 101, a valve core 102, a water inlet cavity 103, a water outlet cavity 104, and a pressure cavity 105 disposed above the water inlet cavity 103 and the water outlet cavity 104 are disposed in the main valve 1, the water inlet cavity 103 is communicated with the water inlet passage 4, the water outlet cavity 104 is communicated with the water outlet passage 5, an elastic diaphragm 106 is disposed in the pressure cavity 105, the pressure cavity 105 is divided into an upper cavity 1051 and a lower cavity 1052 by the elastic diaphragm 106, the valve stem 101 is connected with the elastic diaphragm 106 and the valve core 102, the valve core 102 is disposed at the connection position of the water inlet cavity 103 and the water outlet cavity 104, and the valve core 102 moves up and down along with the valve stem 101 to control the communication between the water inlet cavity 103 and the water outlet cavity 104. Preferably, the lower chamber 1052 is provided with a vent hole 107, and the vent hole 107 is communicated with the water outlet cavity 104.
The main valve 1 includes a valve body 108, an upper bonnet 109 and a lower bonnet 110, the valve body 108 is connected to the lower bonnet 110, the upper bonnet 109 and the lower bonnet 110 form a pressure chamber 105, and the lower bonnet 110 is provided with a through hole through which the valve stem 101 passes. Two mounting plates 111 are arranged in the main valve 1, the elastic diaphragm 106 is arranged between the two mounting plates 111, the upper end of the valve rod 101 penetrates through the two mounting plates 111 and the elastic diaphragm 106, and the lower end of the valve rod 101 penetrates through the through hole and is connected with the valve core 102.
The valve body 108 is internally provided with a water inlet cavity 103, a water outlet cavity 104 and a containing cavity 120, the containing cavity 120 is respectively communicated with the water inlet cavity 103 and the water outlet cavity 104, and the valve core 102 is arranged in the containing cavity 120. The valve core 102 comprises an adjusting seat 1021 and a supporting column 1022 arranged on the adjusting seat 1021, the valve rod 101 penetrates through the through hole and is connected with the adjusting seat 1021, the valve core 102 controls whether the water inlet cavity 103 is communicated with the water outlet cavity 104, the supporting columns 1022 are uniformly distributed along the periphery of the adjusting seat 1021, along with the upward movement of the supporting columns 1022, water in the water inlet cavity 103 flows into the accommodating cavity 120 and the water outlet cavity 104 through the intervals between the supporting columns 1022, the moving distance of the supporting columns 1022 influences the size of the intervals between the supporting columns 1022, and then the water flow of the water inlet cavity 103 flowing into the water outlet cavity 104 is determined.
As shown in fig. 1, the water inlet pipe 2 is communicated with the water inlet cavity 103 and the upper chamber 1051, and the water inlet pipe 2 is provided with a first electromagnetic valve 6 and a first switch valve 7 which are connected in parallel; the water outlet pipe 3 is communicated with the upper chamber 1051 and the water outlet chamber 104, the water outlet pipe 3 is provided with a second electromagnetic valve 8 and a pilot valve 9 which are connected in parallel, the water outlet pipe 3 is provided with a second switch valve 10, the second switch valve 10 is connected with the second electromagnetic valve 8 in series, and the second switch valve 10 is arranged at the downstream of the second electromagnetic valve 8. Because the water inlet pipe 2 and the water outlet pipe 3 are both communicated with the upper chamber 1051, the water inlet pipe 2 and the water outlet pipe 3 can share one section of connecting pipe 11, one end of the connecting pipe 11 is connected with the upper chamber 1051, and the other end is respectively connected with the water inlet pipe 2 and the water outlet pipe 3. In this embodiment, the pressure in the upper chamber 1051 of the main valve 1 is directly controlled by two electromagnetic valves, thereby achieving the purpose of controlling the opening degree of the main valve 1. Compare in pilot valve 9, solenoid valve long service life opens and close the life-span number of times and can reach the million times, and the solenoid valve does not have complicated mechanical mechanism, and the area of overflowing is big, is difficult for the card stifled, so need not frequent maintenance, can not influence resident's normal drinking water.
The control system 12 is connected with a power supply system 13, an alarm system, a communication system, a pressure sensor A, a pressure sensor B and a flowmeter; the pressure sensor A is used for monitoring the pressure on the water inlet pipe 2; the pressure sensor B is used for monitoring the pressure on the water outlet pipe 3; the flow meter is used to monitor the water flow in the main valve 1. The control system 12 is provided with a data acquisition communication control module, can monitor data information of the pressure sensor A, the pressure sensor B and the flowmeter in real time, and sends an abnormal condition alarm instruction to the alarm system, in addition, the control system 12 is provided with an uninterruptible UPS (uninterrupted power supply), and when the normal power supply system 13 is powered off, the control system 12 can automatically switch to the UPS.
The water inlet pipe 2 is provided with a standby electromagnetic valve A14, and the standby electromagnetic valve A14 is connected with the first electromagnetic valve 6 in parallel; and a standby electromagnetic valve B15 is arranged on the water outlet pipe 3, and a standby electromagnetic valve B15 is connected with the second electromagnetic valve 8 in parallel. First solenoid valve 6, second solenoid valve 8, standby solenoid valve A14 and standby solenoid valve B15 all are normal close formula solenoid valve, and first solenoid valve 6 and second solenoid valve 8 constitute work solenoid valve group, and standby solenoid valve A14 and standby solenoid valve B15 constitute standby solenoid valve group, if first solenoid valve 6 breaks down, can launch standby solenoid valve A14, if second solenoid valve 8 breaks down, can launch standby solenoid valve B15.
When the control system 12 detects that the original working solenoid valve group has a problem, the control system 12 can automatically switch to the standby solenoid valve group to work continuously, an alarm signal is sent to a user through the communication system, and the standby solenoid valve group plays an emergency role.
As shown in fig. 3, the first solenoid valve 6 and the second solenoid valve 8 are both vertically arranged in the waterproof box 16, the first solenoid valve 6 and the second solenoid valve 8 comprise an electric coil assembly 17, a vertical bolt 18 is arranged in the waterproof box 16, and the electric coil assembly 17 is inserted into the bolt 18 and fixed in the waterproof box 16 through a nut 19. When the electric coil of the easily damaged part of the electromagnetic valve needs to be replaced, the nut 19 is unscrewed, and the electric coil component 17 can be directly replaced, so that the maintenance is simple and the operation of a professional is not needed.
When a user receives that the working electromagnetic valve group works abnormally, a maintainer can maintain the first electromagnetic valve 6 or the second electromagnetic valve 8 on the spot under the condition of uninterrupted water supply, and after the replacement is finished, a normal electric control mode can be sent to the control system 12 to recover, and the control system 12 can automatically switch to use the working electromagnetic valve group for control.
The embodiment adopts a closed control mode, namely the opening degree of the valve is manually controlled through the pilot valve 9 or electrically controlled through the solenoid valve group. Under normal conditions, the opening of the valve is electrically controlled through the electromagnetic valve group, when the control system 12 has a problem, the pilot valve 9 can be switched to be manually controlled immediately, and manual and automatic integration is realized.
In a normal case, the present embodiment electrically controls the opening degree of the valve through the solenoid valve group, specifically, the solenoid valve group controls the pressure of the upper chamber 1051 of the main valve 1, and when the pressure of the upper chamber 1051 increases, the opening degree of the main valve 1 decreases, and when the pressure of the upper chamber 1051 decreases, the opening degree of the main valve 1 increases.
The specific operation is as follows:
when the control system 12 sends an opening instruction to the first electromagnetic valve 6, the first electromagnetic valve 6 is powered on to be switched from a normally closed state to an open state, the pressure of the water inlet channel 4 enters the upper chamber 1051 of the main valve 1 from the first electromagnetic valve 6 through the water inlet pipe 2, the pressure of the upper chamber 1051 rises to push the valve rod 101 to move downwards, and the valve core 102 gradually blocks the communication between the water inlet cavity 103 and the water outlet cavity 104 until the required flow is reached or the main valve 1 is closed;
when the control system 12 sends an opening instruction to the second electromagnetic valve 8, the second electromagnetic valve 8 is powered on to switch from the normally closed state to the open state, the pressure in the upper chamber 1051 of the main valve 1 is discharged from the second electromagnetic valve 8 to the water outlet channel 5 through the water outlet pipe 3, at this time, the pressure in the upper chamber 1051 drops, the valve rod 101 is pushed to move upwards, and the valve core 102 gradually opens the communication between the water inlet chamber 103 and the water outlet chamber 104 until the required flow is reached.
When the control system 12 is abnormal, the electromagnetic valve is automatically controlled to close, and the pressure of the upper chamber 1051 of the main valve 1 is controlled by the first switch valve 7 and the pilot valve 9.
The specific operation is as follows:
manually opening the first switch valve 7, allowing the pressure of the water inlet channel 4 to enter the upper chamber 1051 of the main valve 1 from the first electromagnetic valve 6 through the water inlet pipe 2, increasing the pressure of the upper chamber 1051, and gradually closing the main valve 1; the pilot valve 9 is opened manually, the pressure of the upper chamber 1051 of the main valve 1 is discharged from the second electromagnetic valve 8 to the water outlet channel 5 through the water outlet pipe 3, the pressure of the upper chamber 1051 is reduced, and the main valve 1 is opened gradually until the required flow is reached.
Example 2
As shown in fig. 4 and fig. 5, based on embodiment 1, the manual-automatic integrated pressure control valve provided in this embodiment includes two three-way valves, namely a three-way valve a20 and a three-way valve B21, where the three-way valve a20 has three joints a1, a2, and A3, and respectively communicates with the second electromagnetic valve 8, the water outlet cavity 104, and the outside atmosphere; the three-way valve B21 has three joints B1, B2 and B3, which are respectively communicated with the lower chamber 1052, the water outlet chamber 104 and the outside atmosphere. The outlet pipe 3 is provided with a third on-off valve 22 at a position close to the outlet cavity 104.
The present embodiment includes a closed control mode and an outward discharge control mode, and both control modes can be freely switched by the three-way valve a20 and the three-way valve B21.
Referring to fig. 4, the arrows indicate the water flow direction, in the closed control mode, a1 is communicated with a2, b1 is communicated with b2, that is, the upper chamber 1051 of the main valve 1 is communicated with the water outlet chamber 104, and the lower chamber 1052 of the main valve 1 is communicated with the water outlet chamber 104, at which time, the opening degree of the main valve 1 is manually controlled or electrically controlled by the pilot valve 9 or the solenoid valve set.
Referring to fig. 5, the arrows indicate the water flow direction, the joints of the three-way valves are switched, and the third on/off valve 22 is closed, and the present embodiment can be switched from the closed control mode to the outward discharge control mode. In the outward discharge control mode, a1 is communicated with a3, and b1 is communicated with b3, that is, the upper chamber 1051 of the main valve 1 is communicated with the external atmosphere, and the lower chamber 1052 of the main valve 1 is communicated with the external atmosphere, and at this time, the opening degree of the main valve 1 can be electrically controlled only by the solenoid valve set.
When the pressure in the inlet channel is too low, the embodiment needs to switch to an outward discharge control mode, at this time, water in the upper chamber 1051 of the main valve 1 can be completely drained, the upper chamber 1051 no longer has water pressure, the opening degree of the main valve 1 is not limited, the valve is opened fully, and the water supply requirement is met. When the inlet pressure is restored to the normal supply pressure, the main valve 1 may also control the pressure of the upper chamber 1051 through the solenoid valve group in the outward discharge control mode, thereby controlling the opening degree of the main valve 1.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should fall within the protection scope of the present invention.

Claims (10)

1. A manual-automatic pressure control valve, comprising:
the main valve (1) is internally provided with a valve rod (101), a valve core (102), a water inlet cavity (103), a water outlet cavity (104) and a pressure cavity (105) arranged above the water inlet cavity (103) and the water outlet cavity (104), an elastic diaphragm (106) is arranged in the pressure cavity (105), the pressure cavity (105) is divided into an upper cavity (1051) and a lower cavity (1052) by the elastic diaphragm (106), the valve core (102) is arranged at the joint of the water inlet cavity (103) and the water outlet cavity (104), and the valve rod (101) is connected with the elastic diaphragm (106) and the valve core (102);
the water inlet pipe (2) is communicated with the water inlet cavity (103) and the upper cavity (1051), and a first electromagnetic valve (6) and a first switch valve (7) which are connected in parallel are arranged on the water inlet pipe (2);
the water outlet pipe (3) is communicated with the upper cavity (1051) and the water outlet cavity (104), and a second electromagnetic valve (8) and a pilot valve (9) which are connected in parallel are arranged on the water outlet pipe (3).
2. A manual-automatic integrated pressure control valve according to claim 1, characterized in that a vent hole (107) is arranged on the lower chamber (1052), and the vent hole (107) is communicated with the water outlet chamber (104).
3. A manual-automatic integrated pressure control valve according to claim 2, characterized by comprising a three-way valve a (20) and a three-way valve B (21); the three-way valve A (20) is communicated with the second electromagnetic valve (8), the water outlet cavity (104) and the outside atmosphere respectively; the three-way valve B (21) is communicated with the lower chamber (1052), the water outlet cavity (104) and the outside atmosphere respectively.
4. A manual-automatic integrated pressure control valve according to claim 1, characterized in that a standby electromagnetic valve a (14) is arranged on the water inlet pipe (2), and the standby electromagnetic valve a (14) is connected with the first electromagnetic valve (6) in parallel; and a standby electromagnetic valve B (15) is arranged on the water outlet pipe (3), and the standby electromagnetic valve B (15) and the second electromagnetic valve (8) are connected in parallel.
5. A manual-automatic integrated pressure control valve according to claim 1, characterized by comprising a control system (12), wherein an alarm system, a pressure sensor a, a pressure sensor B and a flowmeter are connected to the control system (12); the pressure sensor A is used for monitoring the pressure on the water inlet pipe (2); the pressure sensor B is used for monitoring the pressure on the water outlet pipe (3); the flowmeter is used for monitoring the water flow in the main valve (1).
6. A manual-automatic integrated pressure control valve according to claim 1, characterized in that a second on-off valve (10) is provided on the outlet pipe (3), said second on-off valve (10) and said second solenoid valve (8) are connected in series, and said second on-off valve (10) is provided downstream of said second solenoid valve (8).
7. A hand-operated and self-operated pressure control valve according to claim 1, characterized in that the first solenoid valve (6) and the second solenoid valve (8) are both vertically arranged in a waterproof box (16), the first solenoid valve (6) and the second solenoid valve (8) comprise an electric coil assembly (17), a vertical bolt (18) is arranged in the waterproof box (16), and the electric coil assembly (17) is inserted into the bolt (18) and fixed in the waterproof box (16) through a nut (19).
8. A manual-automatic integrated pressure control valve according to claim 1, characterized in that said main valve (1) comprises a valve body (108), an upper valve cover (109) and a lower valve cover (110), said valve body (108) is connected with said lower valve cover (110), said upper valve cover (109) and said lower valve cover (110) form said pressure chamber (105), said lower valve cover (110) is provided with a through hole for passing said valve stem (101).
9. A manual-automatic integrated pressure control valve according to claim 8, characterized in that two mounting plates (111) are arranged in the main valve (1), the elastic diaphragm (106) is arranged between the two mounting plates (111), the upper end of the valve rod (101) penetrates through the two mounting plates (111) and the elastic diaphragm (106), and the lower end of the valve rod (101) is connected with the valve core (102).
10. An automated manual pressure control valve according to claim 8, characterized in that the valve core (102) is arranged in the valve body (108), the valve core (102) comprises an adjusting seat (1021) and a supporting column (1022), and the valve rod (101) passes through the through hole and is connected with the adjusting seat (1022).
CN202210156969.2A 2022-02-21 2022-02-21 Manual-automatic pressure control valve Pending CN114645948A (en)

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CN202210156969.2A CN114645948A (en) 2022-02-21 2022-02-21 Manual-automatic pressure control valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210156969.2A CN114645948A (en) 2022-02-21 2022-02-21 Manual-automatic pressure control valve

Publications (1)

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CN114645948A true CN114645948A (en) 2022-06-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210156969.2A Pending CN114645948A (en) 2022-02-21 2022-02-21 Manual-automatic pressure control valve

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117989363A (en) * 2024-04-07 2024-05-07 广东永泉阀门科技有限公司 Reset valve assembly and shower valve system using same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117989363A (en) * 2024-04-07 2024-05-07 广东永泉阀门科技有限公司 Reset valve assembly and shower valve system using same

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