CN101608692B - Manual, electric and hydraulic three-purpose Y-type multi-nozzle constant pressure flow regulating valve - Google Patents

Abstract

The invention discloses a manual, electrical and hydraulic three-function Y-shaped constant-pressure flow regulating valve with multiple spray holes, which comprises a valve body, a hydraulic cylinder, a valve cover, a piston pod, an electrical and manual driving mechanism and a pressure-control attachment valve, wherein the hydraulic cylinder is arranged on the upper part of the valve body; the valve cover is reversely covered on the hydraulic cylinder; the electrical and manual driving mechanism drives the piston rod to move upwards and downwards; a membrane sheet assembly which divides the inner cavity of the hydraulic cylinder into an upper cavity and a lower cavity and can move along with the piston rod upwards and downwards is arranged between the hydraulic cylinder and the valve cover; a valve seat with multiple spray holes is arranged in inner holes positioned in the valve body; a spray barrel slide sleeve is sleeved at the bottom of the piston rod and matched with the valve seat with multiple spray holes; and the pressure-control attachment valve is arranged on an outlet guide tube which is respectively communicated with a valve outlet, the upper cavity and the lower cavity. The invention is suitable for water supply systems, has the function that the pressure of the valve outlet is constant when the flow quantity of the system varies, and has the characteristic that the flow regulating valve can be electrically controlled, or realize constant-pressure flow regulation through hydraulic and automatic control under the condition of power losing or without power, and also realize constant-pressure flow regulation through manual control when a special requirement is needed.

Description

Manual, electric and hydraulic three-purpose Y-type multi-nozzle constant pressure flow regulating valve

technical field

The invention relates to a flow regulating valve, in particular to a Y-type multi-nozzle constant-pressure flow regulating valve for hand, electricity and hydraulic.

Background technique

In long-distance pressurized water pipelines, the pressure of the pipeline is often too high due to the reduction of water consumption by users. In severe cases, the amount of water loss from the pipeline may increase greatly, and even the pipeline may rupture. Most of the existing flow regulating valves are manual, and their structural forms mainly include gate valves, globe valves and cone valves. The above existing flow regulating valves have the following main disadvantages in actual use: large flow resistance, The cavitation is serious, there is no hydraulic or electric control function, and it cannot meet the requirements of frequent constant flow regulation.

Contents of the invention

The technical problem to be solved by the present invention is to provide a hand, electric and hydraulic Y-type multi-jet constant pressure flow regulating valve, which is reasonable in structure design, easy to use and operate, and reliable in performance. The flow change under constant pressure can be realized by manual control, electric control or hydraulic control, so as to suppress or reduce the possibility of water hammer in the pressure pipeline and ensure the stability and reliability of flow regulation.

In order to solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a Y-type multi-nozzle constant pressure flow regulating valve for hand, electricity and hydraulic, which is characterized in that it includes a valve body with an inlet and an outlet at the bottom, an installation The hydraulic cylinder at the upper opening of the valve body, the bonnet that is buckled upside down on the hydraulic cylinder and installed integrally with the valve body, is inserted through the bonnet hole in the middle of the bonnet from top to bottom and inserted into the valve cavity after passing through the hydraulic cylinder The piston rod at the bottom, the electric drive mechanism and manual drive mechanism that drive the piston rod to move up and down, and the additional valve that automatically adjusts and controls the piston rod to move up and down through the change of liquid pressure in the hydraulic cylinder is the pressure control attached valve; the hydraulic cylinder and the valve cover A diaphragm assembly that divides the inner chamber of the hydraulic cylinder into two chambers, the upper chamber and the lower chamber, and can move up and down with the piston rod is installed between them. The upper chamber is a cavity surrounded by the upper cylinder body of the hydraulic cylinder and the valve cover. , the piston rod passes through the middle of the diaphragm assembly and the diaphragm assembly is set and fixed on the piston rod; the valve body is provided with a valve body hole which communicates with the inlet and the outlet respectively, and the valve body hole is installed The valve seat with multiple nozzle holes, the bottom of the piston rod is equipped with a spray sleeve sliding sleeve used in conjunction with the valve seat with multiple nozzle holes; the piston rod, the diaphragm assembly on the piston rod and the sleeve sleeve form a piston The rod moves up and down and correspondingly controls and adjusts the actual effective opening degree of the multi-nozzle valve seat, that is, the flow capacity; the pressure control attached valve is installed on the outlet conduit that communicates with the outlet, the upper chamber and the lower chamber; The electric drive mechanism and the manual drive mechanism constitute the electric and manual control devices that drive the motion components, and the pressure control valve is a hydraulic control device that drives the motion components.

It also includes a flow pressure gauge installed on the outlet to detect the liquid pressure at the outlet in real time, and automatically controls the electric control device according to the signal detected by the flow pressure gauge to control the upward or downward movement of the piston rod. A microcomputer controller; the flow pressure gauge is connected to a microcomputer controller, and the microcomputer controller is connected to the electric control device.

The electric drive mechanism and the manual drive mechanism form a combined hand-electric all-in-one machine, the hand-electric all-in-one machine consists of an electric motor, a gearbox mounted on the power output shaft of the electric motor, and a gearbox mounted on the gearbox and connected to the The power input shaft of the gearbox is connected to the hand wheel, the power output shaft of the gearbox is connected to the upper end of the piston rod, and the connection between the two is installed with an electromagnetic switch to control the connection or disconnection of the two.

The diaphragm assembly is composed of a diaphragm and a diaphragm upper pressing plate and a diaphragm lower pressing plate which are relatively fixedly installed on the upper and lower sides of the diaphragm.

It also includes an inlet conduit communicating with the inlet and the upper chamber, and a regulating valve is installed on the inlet conduit.

Compared with the prior art, the present invention has the following advantages:

1. Reasonable structural design and easy operation and disassembly.

2. The action mode is flexible and the performance is reliable. It can be controlled electronically, and can realize constant pressure and current regulation through hydraulic automatic control under the condition of power failure or no electricity. When it is particularly necessary, manual control can also be used to realize constant pressure control.

3. Full function and good use effect. The present invention is composed of valve body, multi-nozzle valve seat, nozzle sliding sleeve, hydraulic cylinder, control valve, hand, electric integrated machine, electromagnetic switcher, etc., among which the multi-nozzle valve The seat is fixed on the inner hole of the valve body, and the sliding sleeve of the nozzle is placed in the valve seat with multiple nozzle holes and connected with the control diaphragm through the piston rod. It is controlled by the pressure of the hydraulic cylinder or the hand and electric integrated machine. , the present invention can be used as an electric lifting switch, so that the electromagnetic switch is in the connected state, and the lifting of the sliding sleeve of the spray cylinder in the valve seat with multiple nozzle holes can be realized, so that the flow of water can be increased or decreased, and the flow can be adjusted; During electric adjustment, the valve can be used as an actuator. By setting up a microcomputer controller and a flow pressure gauge, etc., when the pressure or flow in the pipeline deviates from the adjusted parameters, the microcomputer controller will automatically issue an adjustment command. The electric all-in-one machine changes the position of the spray tube sliding sleeve, and the flow pressure gauge feedbacks whether the adjustment is in place, and makes corrections until the original set parameters are met. When there is no power supply or sudden power failure, the valve enters into the hydraulic automatic state, that is, the hydraulic control state. At this time, the outlet pressure of the valve is firstly adjusted by controlling the pressure attached valve. When the pipeline flow increases, the pressure control attached valve makes the outlet conduit pass When the flow rate increases, the pressure on the upper part of the hydraulic cylinder decreases, the main valve, that is, the sliding sleeve of the spray tube, moves up, the opening degree increases, and the flow rate increases, so that the constant pressure at the outlet remains constant; when the flow rate decreases, the pressure control valve makes the outlet The flow hole of the conduit is reduced, the pressure on the upper part of the hydraulic cylinder is increased, the sliding sleeve of the spray tube is moved down, and the water flow is reduced, so that the constant pressure value of the outlet remains unchanged, so as to realize stable flow regulation and prevent water hammer accidents.

4. It has a wide range of applications, not only in water supply systems, but also in other related technical fields.

In summary, the present invention is a flow regulating valve. When the normal flowing fluid needs to be adjusted in pressure or flow in the pipeline, the valve can realize the flow change under constant pressure through electric control or hydraulic control, so as to suppress Or reduce the possibility of water hammer in the pressure pipeline and ensure the stability and reliability of flow regulation.

The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

Description of drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a second specific embodiment of the present invention.

Explanation of reference signs:

1-Valve body; 2-Multi-nozzle valve seat; 3-Spray sleeve;

4-Outlet conduit; 5-Hydraulic cylinder; 6-Bonnet;

7-Pressure control attached valve; 8-Hand wheel; 9-Hand, electric all-in-one machine;

10-electromagnetic switch; 11-piston rod; 12-regulating valve;

13-diaphragm upper platen; 14-diaphragm; 15-diaphragm lower platen;

16-inlet conduit; 17-inlet; 18-exit;

19-flow pressure gauge; 20-microcomputer controller.

Detailed ways

Example 1

As shown in Figure 1, the present invention includes a valve body 1 with an inlet 17 and an outlet 18 at the bottom, a hydraulic cylinder 5 installed at the upper opening of the valve body 1, an inverted buckle on the hydraulic cylinder 5 and integrated with the valve body 1 The valve cover 6, the piston rod 11 inserted from top to bottom through the valve cover hole in the middle of the valve cover 6 and inserted into the bottom of the valve cavity after passing through the hydraulic cylinder 5, the electric drive mechanism and the manual drive mechanism that drive the piston rod 11 to move up and down And the additional valve that automatically adjusts the additional valve that controls the piston rod 11 to move up and down through the change of the liquid pressure in the hydraulic cylinder 5 is the pressure control additional valve 7 .

A diaphragm assembly is installed between the hydraulic cylinder 5 and the valve cover 6, which divides the inner chamber of the hydraulic cylinder 5 into two chambers, an upper chamber and a lower chamber, and can move up and down with the piston rod 11. The upper chamber is formed by the hydraulic cylinder. 5 The cavity surrounded by the upper cylinder body and the valve cover 6, the piston rod 11 passes through the middle of the diaphragm assembly and the diaphragm assembly is sleeved and fixed on the piston rod 11. The inside of the valve body 1 is provided with a valve body hole which communicates with the inlet 17 and the outlet 18 respectively, and the multi-jet valve seat 2 is installed on the valve body hole, and the bottom of the piston rod 11 is fitted with a multi-jet valve seat 2 Spray barrel sliding sleeve 3 for cooperating use. The piston rod 11, the diaphragm assembly set on the piston rod 11 and the spray sleeve sliding sleeve 3 form a structure that moves up and down with the piston rod 11 and controls the actual effective opening of the multi-nozzle valve seat 2, that is, the flow capacity. Adjusted motion components. The pressure control attached valve 7 is installed on the outlet conduit 4 communicating with the outlet 18, the upper chamber and the lower chamber respectively. The spray barrel sliding sleeve 3 moves up and down in the valve seat 2 with multiple nozzle holes.

To sum up, the electric drive mechanism and the manual drive mechanism constitute the electric and manual control devices for driving the motion components, and the pressure control valve 7 is the hydraulic control device for driving the motion components.

At the same time, the present invention also includes a flow pressure gauge 19 installed on the outlet 18 and detecting the liquid pressure at the outlet 18 in real time, and automatically controls the electric control device according to the signal detected by the flow pressure gauge 19 to achieve control. The microcomputer controller 20 that the piston rod 11 moves up or down. The flow pressure gauge 19 is connected to a microcomputer controller 20, and the microcomputer controller 20 is connected to the electric control device.

In this embodiment, the electric drive mechanism and the manual drive mechanism form a combined hand and electric integrated machine 9, and the hand and electric integrated machine 9 consists of an electric motor, a gearbox installed on the power output shaft of the electric motor, and a On the gearbox and the hand wheel 8 that links to each other with the power input shaft of the gearbox, the power output spindle of the gearbox is connected with the upper end of the piston rod 11 and the connection between the two is equipped with a control device to communicate or Disconnected electromagnetic switch 10. The diaphragm assembly is composed of a diaphragm 14 and a diaphragm upper pressing plate 13 and a diaphragm lower pressing plate 15 which are relatively fixedly installed on the upper and lower sides of the middle of the diaphragm 14 . At the same time, the present invention also includes an inlet conduit 16 communicating with the inlet 17 and the upper cavity, and a regulating valve 12 is installed on the inlet conduit 16 . Therefore, the microcomputer controller 20 realizes the purpose of driving the piston rod 11 to move upward or downward by controlling the forward and reverse rotation of the motor. The lower end of the electromagnetic switcher 10 is sleeved on the piston rod 11, and its upper end is fixedly connected with the main shaft of the hand-electric integrated machine 9, specifically the power output of the gearbox. To sum up, in this embodiment, the present invention is an intelligent electronically controlled hand, electric and hydraulic three-purpose Y-type multi-nozzle constant pressure flow regulating valve.

The working process of the present invention is: the flow pressure gauge 19 detects the liquid pressure at the outlet 18 in real time and uploads the detected pressure data to the microcomputer controller 20 synchronously. Analyze and judge and compare with the preset set value, when it is judged that the liquid pressure at the outlet 18 is too small, an instruction to increase the opening is sent to the hand and electric integrated machine 9, specifically the electric motor; when the hand and electric integrated The machine 9 is specifically that after the motor receives the instruction to increase the opening degree sent by the microcomputer controller 20, the hand-electric all-in-one machine 9 specifically is that the motor rotates counterclockwise. The piston rod 11 is in a connected state, and the piston rod 11 and the spray sleeve sliding sleeve 3 installed at the lower end of the piston rod 11 move upward with the rotation of the flashlight 9, so that the opening of the multi-nozzle valve seat 2 is increased, and the flow rate is increased; on the contrary After the hand-electric integrated machine 9, specifically the motor, receives the instruction to reduce the opening degree sent by the microcomputer controller 20, the hand-electric integrated machine 9, specifically the motor, rotates clockwise, and the electromagnetic switcher 10 and the piston rod 11 still In the connected state, the piston rod 11 and the spray sleeve sliding sleeve 3 installed at the lower end of the piston rod 11 are handy, and the electric integrated machine 9 rotates and moves downward, so that the opening of the multi-nozzle valve seat 3 is reduced, and the flow rate is reduced. , until the preset water pressure flow parameters are reached.

When the system loses power or works under no electricity state, the present invention is in a fully hydraulic automatic state. First, the pressure of the liquid at the outlet 18 is adjusted through the pressure control attached valve 7. At this time, the electromagnetic switcher 10 and the piston rod 11 are in an interrupted state. , the hand and electric integrated machine 9 is completely separated from the piston rod 11. When the flow rate of downstream users or the system decreases, the pressure control valve 7 connected with the outlet conduit 4 will automatically control the overflow opening of the outlet 18 to decrease accordingly. If the flow capacity is reduced, the internal pressure of the upper chamber of the hydraulic cylinder 5 will increase, so that the moving assembly will move down, and the opening of the multi-nozzle valve seat 2 will be closed to increase the loss of the excess water head, and the outlet will be automatically maintained. The pressure at 18 places is constant at the pre-set pressure. Similarly, when the flow rate of the system increases, the pressure control attached valve 7 increases the overflow opening of the outlet conduit 4, and the overflow capacity increases, which reduces the pressure in the upper chamber of the hydraulic cylinder 5, causing the moving components to rise and open. Most of the opening of the nozzle hole valve seat 2 reduces the loss of the excess water head, and also automatically keeps the pressure at the outlet 18 constant at the pre-set pressure.

When the system is out of service for maintenance, the electromagnetic switcher 10 can be connected with the piston rod 11 manually, and the manual switch and valve opening can be adjusted by turning the hand wheel 8 .

Example 2

As shown in Figure 2, in this embodiment, the difference from Embodiment 1 is: in this embodiment, the flow pressure gauge 19 that detects the liquid pressure at the outlet 18 in real time and the automatic control of the electric control device are not provided. Control to reach the microcomputer controller 20 that controls the piston rod 11 to move up or down. Therefore, in this embodiment, the present invention is a non-intelligent electric control hand, electric and hydraulic three-purpose Y-type multi-nozzle constant pressure flow regulating valve.

In the case of non-intelligent electric control, the present invention can be used as an electric lifting switch. After the electromagnetic switcher 10 and the piston rod 11 are in a connected state, the sliding sleeve 3 of the spray barrel can be driven by the hand and the electric integrated machine 9 to realize the control of the multi-nozzle valve. The lift in the seat 2 is to move up and down, so that the amount of flowing water is increased or decreased to realize flow regulation.

The above are only preferred embodiments of the present invention, and do not limit the present invention in any way. All simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical essence of the present invention still belong to the technical aspects of the present invention. within the scope of protection of the scheme.

Claims (4)

1. A Y-type multi-nozzle constant pressure regulating valve for hand, electricity and hydraulic, characterized in that it includes a valve body (1) with an inlet (17) and an outlet (18) at the bottom, and a valve body (1) installed on the valve body (1) The hydraulic cylinder (5) at the upper opening, the bonnet (6) which is upside down on the hydraulic cylinder (5) and installed integrally with the valve body (1), passes through the bonnet hole in the middle of the bonnet (6) Insert from top to bottom and pass through the hydraulic cylinder (5) and then insert to the piston rod (11) at the bottom of the valve chamber, the electric drive mechanism and manual drive mechanism that drive the piston rod (11) to move up and down, and through the hydraulic cylinder (5) The pressure change of the liquid pressure automatically adjusts the additional valve that controls the piston rod (11) to move up and down, that is, the pressure control attached valve (7); A diaphragm assembly that is divided into two chambers, an upper chamber and a lower chamber, and can move up and down with the piston rod (11). The upper chamber is a space surrounded by the upper cylinder body of the hydraulic cylinder (5) and the valve cover (6). cavity, the piston rod (11) passes through the middle of the diaphragm assembly and the diaphragm assembly is set and fixed on the piston rod (11); the valve body (1) is provided with an inlet (17) and an outlet respectively. (18) The internal holes of the valve are connected and the multi-jet hole valve seat (2) is installed on the valve body hole, and the bottom of the piston rod (11) is equipped with a spray barrel slide used in conjunction with the multi-jet hole valve seat (2). sleeve (3); the piston rod (11), the diaphragm assembly set on the piston rod (11) and the spray barrel sliding sleeve (3) form a valve that moves up and down with the piston rod (11) and correspondingly pairs of multi-nozzle valves The actual effective opening of the seat (2), that is, the movement assembly that controls and adjusts the flow capacity; the pressure control valve (7) is installed on the outlet conduit (4) that communicates with the outlet (18), the upper chamber and the lower chamber respectively ; The electric drive mechanism and the manual drive mechanism form the electric and manual control device that drives the action of the moving assembly, and the pressure control attached valve (7) is a hydraulic control device that drives the action of the moving assembly; it also includes an installation at the outlet ( 18) A flow pressure gauge (19) that detects the liquid pressure at the outlet (18) in real time, and automatically controls the electric control device according to the signal detected by the flow pressure gauge (19) to achieve the control of the piston rod. (11) A microcomputer controller (20) moving upward or downward; the flow pressure gauge (19) is connected to the microcomputer controller (20), and the microcomputer controller (20) is connected to the electric control device. 2. According to the Y-type multi-nozzle constant pressure flow regulating valve for hand, electricity and liquid according to claim 1, it is characterized in that: the electric drive mechanism and the manual drive mechanism form a combined hand and electric all-in-one machine (9), the hand-electric all-in-one machine (9) consists of a motor, a gearbox mounted on the power output shaft of the motor, and a handwheel (8) that is installed on the gearbox and is connected with the power input shaft of the gearbox , the power output main shaft of the gearbox is connected to the upper end of the piston rod (11), and an electromagnetic switch (10) for controlling the connection or disconnection of the two is installed at the connection between the two. 3. according to claim 1, hand, electric, hydraulic three-purpose Y-type multi-nozzle constant-pressure regulating valve, is characterized in that: described diaphragm assembly is installed on diaphragm (14) relatively fixedly by diaphragm (14). 14) The upper and lower diaphragm upper pressing plates (13) and the lower diaphragm pressing plates (15) form. 4. according to claim 1, the three-purpose Y-type multi-nozzle constant pressure regulating valve for hand, electricity and liquid is characterized in that: it also includes an inlet conduit (16) communicating with the inlet (17) and the upper chamber and A regulating valve (12) is installed on the inlet conduit (16).

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