Remotely controllable emergency distributing valve

Abstract

The utility model discloses an accident distributing valve capable of being remotely controlled, which relates to the technical field of accident distributing valves and comprises a valve body, a mounting seat fixedly connected to the back of the valve body, a through hole formed in the mounting seat, an electric valve fixedly connected to the upper end of the front end face of the valve body, a two-position three-way electromagnetic valve and a detection tube fixedly mounted on the top face of the valve body through a flange plate. A relay pipe is fixedly installed at the bottom end of the valve body through a flange plate, hydraulic assemblies are arranged on the valve body, the electric valve and the relay pipe, and a detection assembly is arranged on the detection pipe. Through cooperation of the hydraulic assembly and the valve element, the valve element is conveniently controlled to float up and down so as to control unit flow channels, practicability is improved, the capacity of changing the flow channels in emergency situations is achieved, then through cooperation of the detection assembly and the electromagnetic valve, the flow ratio of all the flow channels is conveniently controlled, practicability is improved, and cost is reduced. The capacity of remotely controlling the distributing valve is achieved, and finally the problem that an existing device passively receives signals and cannot actively work, and consequently heavy losses are caused is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of accident pressure regulating valve, especially to a remote control accident pressure regulating valve. BACKGROUND

[0002] The accident pressure regulating valve is a two-position six-way switching valve, which is used in the overspeed protection system of a hydroelectric generating set. The existing problems of the existing equipment mainly include: the valve core control is not flexible, the unit flow passage control is limited; the ability to change the flow passage in emergency situations is lacking; the flow passage flow ratio control is not accurate, and the remote control pressure regulating valve cannot be realized; the equipment passively receives signals and cannot actively work, which may cause significant losses; in the existing equipment, the cooperation between the hydraulic assembly and the valve core may not be flexible enough, which limits the up-and-down floating of the valve core, and further affects the control of the unit flow passage; this makes the equipment unable to accurately and quickly adjust the flow passage state when responding to different working conditions and requirements; and in the existing equipment, the flow passage flow ratio control may not be accurate enough, which affects the performance and efficiency of the equipment; at the same time, due to the lack of effective remote control mechanism, the control of the pressure regulating valve may be limited, and it cannot be flexibly adjusted according to the actual requirements; therefore, the utility model improves the existing equipment aiming at the above problems. SUMMARY

[0003] The utility model discloses a remote control accident pressure regulating valve which is proposed to solve the problems in the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a remote control accident pressure regulating valve, comprising a valve body, a mounting seat is fixed on the back surface of the valve body, a through hole is formed in the mounting seat, an electric valve is fixed on the front end surface of the valve body, the electric valve is a two-position three-way electromagnetic valve, a detection tube is fixed on the top surface of the valve body through a flange plate, a relay tube is fixed on the bottom end of the valve body through a flange plate, a hydraulic assembly is arranged on the valve body, the electric valve and the relay tube, and a detection assembly is arranged on the detection tube.

[0005] Preferably, a through hole is formed in the middle of the valve body top surface, a valve core is matched and arranged in the through hole, a force amplifier opening pipe is fixedly installed on the lower left side of the valve body through a flange and bolts, a main opening pipe is fixedly installed on the lower right side of the valve body through a flange and bolts, a force amplifier closing pipe is fixedly installed on the upper right side of the valve body through a flange and bolts, a main closing pipe is fixedly installed on the upper left side of the valve body through a flange and bolts, a pressure oil pipe is fixedly installed on the upper front end surface of the valve body through a flange and bolts, an oil return pipe is fixedly installed on the lower front end surface of the valve body through a flange and bolts, and a one-way valve is arranged on the outer side of the oil return pipe.

[0006] Preferably, the force amplifier opening pipe, the main opening pipe, the force amplifier closing pipe, the main closing pipe, the pressure oil pipe and the oil return pipe all penetrate into the valve body and are communicated with an annular groove which is equidistantly arranged on the inner side wall of the through hole.

[0007] Preferably, the hydraulic assembly comprises a detection pipe, an oil inlet pipe is horizontally communicated on the outer side of the detection pipe, a first oil pipe is horizontally communicated on the other side of the outer side of the detection pipe, and the other end of the first oil pipe is downwardly communicated with the one-way valve.

[0008] Preferably, the electric valve is symmetrically provided with an oil inlet and an oil return on the top surface, a second oil pipe is communicated with the middle position of the oil inlet and the oil return in front of the electric valve, the other end of the second oil pipe is downwardly communicated with a relay pipe, and the other side of the relay pipe penetrates into the valve body side wall through an oil pipe and is communicated with the lower end of the through hole.

[0009] Preferably, the detection assembly comprises a valve core, an indicating rod is fixedly connected to the middle of the top surface of the valve core, an accident state contact is abutted on one side of the indicating rod, a normal state contact is abutted on the other side of the indicating rod, and the accident state contact and the normal state contact are fixedly installed on the top surface mounting plate of the detection pipe.

[0010] Compared with the prior art, the utility model has the advantages that the hydraulic assembly and the valve core are matched, the valve core is controlled to float up and down, the flow channel of the unit is controlled, the applicability is improved, the purpose of remotely controlling the pressure regulating valve is achieved, the ability of changing the flow channel in an emergency is achieved, the detection assembly and the electromagnetic valve are matched, the flow ratio of each flow channel is controlled, the practicality is improved, the ability of remotely controlling the pressure regulating valve is achieved, and the problem that the existing equipment cannot actively work due to passive signal receiving and causes great loss is solved. BRIEF DESCRIPTION OF DRAWINGS

[0011] The drawings described herein are used to provide further understanding of the utility model and form part of the present application, the schematic embodiments of the utility model and the description thereof are used to explain the utility model and do not constitute improper limitation on the utility model. In the drawings:

[0012] Figure 1 The device overall structure perspective view is provided by the utility model;

[0013] Figure 2 The device overall structure main view schematic view is provided by the utility model;

[0014] Figure 3 The device one side structure schematic view is provided by the utility model;

[0015] Figure 4 The device overall structure vertical section schematic view is provided by the utility model;

[0016] Figure 5 The device overall structure side section schematic view is provided by the utility model.

[0017] In the drawing, serial number: 1, valve body; 2, mounting seat; 3, electric valve; 4, detection pipe; 5, relay pipe; 6, servomotor opening pipe; 7, main distribution opening pipe; 8, servomotor closing pipe; 9, main distribution closing pipe; 10, pressure oil pipe; 11, oil return pipe; 12, check valve; 13, oil inlet pipe; 14, first oil pipe; 15, second oil pipe; 16, valve core; 17, indicating rod; 18, accident state contact; 19, normal state contact. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0019] Embodiment: see Figures 1-5The utility model discloses a remote control's accident pressure regulating valve, including valve body 1, the back surface fixedly connected with mounting seat 2 of valve body 1, is equipped with through -hole on mounting seat 2, the upper end fixedly connected with electric valve 3 on valve body 1 front end face, and electric valve 3 is two position three way solenoid valve, and the top of valve body 1 is installed and fixed with detection tube 4 through flange plate, and the bottom of valve body 1 is installed and fixed with relay pipe 5 through flange plate, and valve body 1, electric valve 3 and relay pipe 5 are equipped with hydraulic assembly, and detection tube 4 is equipped with detection assembly, and the modular design is convenient for device maintenance and upgrading, improve practicality, the top of valve body 1 middle part is equipped with the inlay hole that goes up and down and passes through, and the inlay hole is equipped with spool 16 in cooperation, and the lower side of valve body 1 right side is installed and fixed with force amplifier opening pipe 6 through flange plate and bolt, and the lower side of valve body 1 left side is installed and fixed with main pressure regulating opening pipe 7 through flange plate and bolt, and the upper side of valve body 1 right side is installed and fixed with force amplifier closing pipe 8 through flange plate and bolt, and the upper side of valve body 1 left side is installed and fixed with main pressure regulating closing pipe 9 through flange plate and bolt, and the upper side of valve body 1 front end face is installed and fixed with pressure oil pipe 10 through flange plate and bolt, and the lower side of valve body 1 front end face is installed and fixed with oil return pipe 11 through flange plate and bolt, and one -way valve 12 is equipped on the outside of oil return pipe 11, through the cooperation of valve body 1 and spool 16, it is convenient to control pressure regulating valve flow path direction, improve practicality, force amplifier opening pipe 6, main pressure regulating opening pipe 7, force amplifier closing pipe 8, main pressure regulating closing pipe 9, pressure oil pipe 10 and oil return pipe 11 all are inwards and pass through valve body 1 and are communicated with an annular groove, and the annular groove is equidistantly set up on the inlay hole inner wall, through the cooperation of annular groove and valve body 1, it is convenient to balance the hydraulic pressure that enters valve, improve practicality.

[0020] In the utility model, hydraulic assembly includes detection tube 4, and the outside horizontal communication of detection tube 4 has oil inlet pipe 13, and the outside other side horizontal communication of detection tube 4 has first oil pipe 14, and the other end of first oil pipe 14 is communicated downward on one-way valve 12, through the cooperation of oil inlet pipe 13 and first oil pipe 14, it is convenient to exert oil pressure on the upper end of spool 16, improve practicality, and the top of electric valve 3 is equipped with oil inlet and oil return symmetrically, and the middle position of oil inlet and oil return in the front of electric valve 3 is communicated with second oil pipe 15, and the other end of second oil pipe 15 is communicated downward on relay pipe 5, and the other side of relay pipe 5 passes through oil pipe and is communicated with the lower end of inlay hole through valve body 1 side wall, through the cooperation of electric valve 3 and second oil pipe 15, it is convenient to exert oil pressure on the lower end of spool 16, improve practicality, and detection assembly includes spool 16, and the middle part of the top of spool 16 is fixedly connected with indicating rod 17, and the one side of indicating rod 17 abuts against accident state contact 18, and the other side of indicating rod 17 abuts against normal state contact 19, and accident state contact 18 and normal state contact 19 are all installed and fixed on the top mounting plate of detection tube 4, through the cooperation of indicating rod 17, accident state contact 18 and normal state contact 19, it is convenient to device feedback current working state, improve practicality.

[0021] Working principle: in the utility model for use, first with the main distribution and relay corresponding pipeline communication, ensure normal operation of unit, then respectively electric valve 3 on the oil inlet, detection tube 4 on the oil inlet pipe 13 and pressure oil pipe 10 communication oil supply device, when the unit is working normally, electric valve 3 and pressure oil pipe 10 interface pressure oil, drive electric valve 3 communication oil inlet and second oil pipe 15, at this time oil liquid through second oil pipe 15 into the relay pipe 5, in through the relay pipe 5 into the hole lower end, in through the oil return pipe 11 recycling, at this time due to the pressure difference in the hole upper and lower makes the valve core 16 float, thereby connecting the relay opening pipe 6 and main distribution opening pipe 7, make unit flow passage unobstructed, also can control the oil amount of electric valve 3 on the oil inlet and second oil pipe 15, thereby control the oil amount of entering the hole lower end, inject pressure oil into oil inlet pipe 13 simultaneously, thereby jointly acting adjusting valve core 16 height, until the relay closing pipe 8 and main distribution closing pipe 9 are communicated, thereby closing unit, thereby realized the ability of remote control accident pressure regulating valve, at this time indicating rod 17 abuts normal state contact 19, the device is in normal state, when the unit appears emergency, electric valve 3 communication oil return and oil inlet, thereby cut off the pressure oil supply of second oil pipe 15, make valve core 16 rapidly drop, at this time all relay opening pipe 6 communication pressure oil pipe 10, relay closing pipe 8 connects oil return pipe 11, the water guide mechanism of water turbine realizes closing under the operation of relay, thereby realize water turbine shutdown, avoid the unit fly accident, at this time indicating rod 17 no longer abuts normal state contact 19, the device is in accident state.

[0022] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art according to the technical scheme and the utility model concept of the present application within the technical range disclosed by the present application makes equivalent replacement or change, should be covered in the protection scope of the present application.

Claims

1. A remotely controllable emergency pressure reducing valve comprising a valve body (1), characterized in that: The back of the valve body (1) is fixed with a mounting seat (2), a through hole is formed in the mounting seat (2), the front end surface of the valve body (1) is fixed with an electric valve (3) at the upper end, the electric valve (3) is a two-position three-way electromagnetic valve, the top surface of the valve body (1) is fixed with a detection tube (4) through a flange plate, the bottom end of the valve body (1) is fixed with a relay tube (5) through a flange plate, the valve body (1), the electric valve (3) and the relay tube (5) are provided with hydraulic components, and the detection tube (4) is provided with a detection assembly.

2. A remotely controllable emergency pressure-relief valve according to claim 1, characterized in that: The top surface of the valve body (1) is provided with an upper and lower through embedding hole, the embedding hole is matched with a valve core (16), the lower right side surface of the valve body (1) is fixed with a booster opening pipe (6) through a flange plate and bolts, the lower left side surface of the valve body (1) is fixed with a main opening pipe (7) through a flange plate and bolts, the upper right side surface of the valve body (1) is fixed with a booster closing pipe (8) through a flange plate and bolts, the upper left side surface of the valve body (1) is fixed with a main closing pipe (9) through a flange plate and bolts, the upper front end surface of the valve body (1) is fixed with a pressure oil pipe (10) through a flange plate and bolts, the lower front end surface of the valve body (1) is fixed with an oil return pipe (11) through a flange plate and bolts, and the outer side surface of the oil return pipe (11) is provided with a check valve (12).

3. A remotely controllable emergency pressure-relief valve according to claim 2, characterized in that: The booster opening pipe (6), the main opening pipe (7), the booster closing pipe (8), the main closing pipe (9), the pressure oil pipe (10) and the oil return pipe (11) all penetrate the valve body (1) inward and are communicated with an annular groove, and the annular groove is equidistantly formed on the inner side wall of the embedding hole.

4. A remotely controllable emergency pressure-relief valve according to claim 2, characterized in that: The hydraulic assembly comprises a detection tube (4), the outer side surface of the detection tube (4) is horizontally communicated with an oil inlet pipe (13), the other side of the outer side surface of the detection tube (4) is horizontally communicated with a first oil pipe (14), and the other end of the first oil pipe (14) is downwardly communicated with the check valve (12).

5. A remotely controllable emergency pressure-relief valve according to claim 1, characterized in that: The top surface of the electric valve (3) is symmetrically provided with an oil inlet and an oil return, the front oil inlet and oil return of the electric valve (3) are communicated with a second oil pipe (15) at the middle position, the other end of the second oil pipe (15) is downwardly communicated with the relay tube (5), and the other side of the relay tube (5) penetrates the side wall of the valve body (1) through an oil pipe and is communicated with the lower end of the embedding hole.

6. A remotely controllable emergency pressure-relief valve according to claim 1, characterized in that: The detection assembly comprises a valve core (16), the top surface of the valve core (16) is fixed with an indicating rod (17) at the middle, one side of the indicating rod (17) abuts against an accident state contact (18), the other side of the indicating rod (17) abuts against a normal state contact (19), and the accident state contact (18) and the normal state contact (19) are fixed on the top surface mounting plate of the detection tube (4).

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