CN110541960B - Electromagnetic pilot gas control valve with double active controls of opening and closing - Google Patents
Electromagnetic pilot gas control valve with double active controls of opening and closing Download PDFInfo
- Publication number
- CN110541960B CN110541960B CN201910802345.1A CN201910802345A CN110541960B CN 110541960 B CN110541960 B CN 110541960B CN 201910802345 A CN201910802345 A CN 201910802345A CN 110541960 B CN110541960 B CN 110541960B
- Authority
- CN
- China
- Prior art keywords
- valve
- auxiliary
- main valve
- closing
- opening
- 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.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
- F16K11/044—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
-
- 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
- F16K31/0603—Multiple-way valves
- F16K31/0624—Lift valves
- F16K31/0627—Lift valves with movable valve member positioned between seats
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention provides an electromagnetic pilot gas control valve with double active controls of opening and closing, which solves the problems that the existing engine control valve is influenced by the gradual reduction of the exhaust speed and the spring loading force, has slow closing response and is difficult to meet the requirement of the rapid shutdown slowdown property of an engine. It comprises a main valve, an auxiliary opening valve and an auxiliary closing valve; the main valve comprises a main valve body, a main valve core and a main valve spring; the main valve core is arranged in the main valve body, and two independent air cavities, namely an opening air cavity and a closing air cavity, are formed in the main valve body; the main valve spring is arranged in the air closing cavity; the main valve body is provided with a medium inlet and a medium outlet; the opening auxiliary valve and the closing auxiliary valve are both electromagnetic valves, wherein the opening auxiliary valve is used for controlling the inflation and the exhaust of the opening air cavity and providing opening force for the main valve core; the auxiliary closing valve is used for controlling the inflation and the exhaust of the air closing cavity and providing closing force for the main valve core.
Description
Technical Field
The invention belongs to the technology of electromagnetic control valves, and particularly relates to an electromagnetic pilot gas control valve with double active controls of opening and closing, which can be used as a quick response control valve of high-pressure media of a liquid rocket engine, a satellite on-orbit execution power system and a ground test system to realize the on-off and sealing control of a medium passage.
Background
With the transformation and upgrading of aerospace equipment, tactical technical indexes of a power system are continuously improved, the requirement on the response performance level of an engine is increasingly increased, and the high-thrust and fast-response rail control engine technology becomes a key technology for restricting the improvement of the equipment performance. Under the development and traction of a certain engine, the device has the capability of quickly avoiding sudden defense for improving the mobility and the viability, a 10kN high-thrust quick-response engine meeting the requirement of large-load quick orbit change needs to be developed, and a control valve is used as an important execution component for controlling the starting and the shutdown of the engine, is used for quickly controlling the on-off of a liquid supply medium and is the key for realizing the quick response of the engine. The traditional engine control valve is far higher than the closing response in the aspect of opening response, so that the starting acceleration performance of the engine is higher than the shutdown deceleration performance, therefore, the thrust cannot be cut off quickly in time after the engine receives a shutdown instruction, the quick deceleration is realized, and the maneuverability and the combat performance of equipment are influenced.
The existing engine control valves all adopt control modes of active opening and passive closing, namely the control valves rely on spring reset force in the closing process, the control valves are closed after air in a main valve control cavity is exhausted and decompressed, a main valve core is influenced by gradual reduction of exhaust and decompression speed and reset spring force in the closing process, and the closing response is usually slow; it is difficult to meet the requirement of rapid shutdown deceleration of the engine.
Therefore, it is urgent to develop a control valve for an engine, which can be opened and closed with a quick response.
Disclosure of Invention
The invention aims to solve the defects that the existing engine control valve is influenced by the gradual reduction of the exhaust speed and the spring loading force, has slow closing response and is difficult to meet the requirement of the quick shutdown slowdown property of an engine, and provides the electromagnetic pilot gas control valve with double active controls of opening and closing.
In order to achieve the purpose, the technical solution provided by the invention is as follows:
the electromagnetic pilot gas control valve with double active controls of opening and closing is characterized by comprising a main valve, an auxiliary opening valve and an auxiliary closing valve;
the main valve comprises a main valve body, a main valve core and a main valve spring;
the main valve core is arranged in the main valve body in a sealing manner, and two independent air cavities, namely an opening air cavity and a closing air cavity, are formed in the main valve body; the main valve spring is arranged in the air closing cavity; the main valve body is provided with a medium inlet and a medium outlet; the main valve core is closed under the action of a main valve spring, so that the medium inlet is blocked from the medium outlet;
the opening auxiliary valve and the closing auxiliary valve are both electromagnetic valves, wherein the opening auxiliary valve is used for controlling the inflation and the exhaust of the opening air cavity and providing opening force for the main valve core; the auxiliary closing valve is used for controlling the inflation and the exhaust of the air closing cavity and providing closing force for the main valve core; a double-active control mode of pneumatic control opening and pneumatic control closing is adopted, so that quick response can be realized when the main valve core is opened and closed; through the structural layout design of the flow channel, the air-open cavity controls the opening of the main valve core through ventilation, and the air-close cavity controls the closing of the main valve core through ventilation, so that a double-active control mode of opening and closing the main valve core is realized.
Furthermore, the auxiliary opening valve and the auxiliary closing valve adopt two-position three-way electromagnetic valves with the same structure;
the two-position three-way electromagnetic valve comprises an auxiliary valve body, an auxiliary valve core, an auxiliary valve spring and a coil;
one end of the auxiliary valve body is provided with an exhaust port, and the other end of the auxiliary valve body is provided with an air inlet and an air outlet; a coil is wound in the side wall of the auxiliary valve body;
the auxiliary valve core is positioned in the auxiliary valve body and is matched with the auxiliary valve body; an air flow channel for communicating the air outlet and the air outlet is formed on the auxiliary valve core;
an auxiliary valve spring is arranged between the end part of the auxiliary valve core close to the exhaust port and the auxiliary valve body to provide closing force for the auxiliary valve core, so that a sealing pair is formed between the auxiliary valve core and the air inlet end;
the coil is electrified to provide opening force for the auxiliary valve core, so that a sealing pair is formed between the auxiliary valve core and the exhaust port, and the air inlet is communicated with the air outlet;
the air outlet of the auxiliary valve is communicated with the air opening cavity of the main valve;
the air outlet of the auxiliary valve is communicated with the air closing cavity of the main valve;
when the coil of the two-position three-way electromagnetic valve is not electrified, the auxiliary valve core is attached and sealed with the valve seat at the air inlet end under the action force of the auxiliary valve spring, and the air inlet passage is cut off; after the coil is electrified, electromagnetic suction force is generated between the auxiliary valve core and the coil, the auxiliary valve core moves to an opening position after overcoming the spring force of an auxiliary valve spring, the auxiliary valve core is attached and sealed with the valve seat at the exhaust port end, an exhaust passage is cut off, and control gas enters a corresponding gas cavity to inflate and build pressure to drive the main valve core to act; after the coil is powered off, the auxiliary valve core returns to the closed position under the acting force of the auxiliary valve spring, the air inlet channel is cut off, the air exhaust channel is opened, and the corresponding air cavity is deflated and decompressed.
Furthermore, the main valve core is divided into a valve core upper section, a valve core middle section and a valve core lower section;
an open air cavity is arranged above the upper section of the valve core, the outer wall of the upper section of the valve core is matched with the inner wall of the main valve body, and the valve core is of a full-size structure, so that the spatial structure size of the main valve body can be utilized to the maximum extent, the maximization of a pressure sensing area is realized, and the opening acting force and the opening response speed are improved;
the outer wall of the middle section of the valve core and the main valve body form an air closing cavity below the upper section of the valve core;
the medium inlet is arranged on the side wall of the main valve body corresponding to the lower section of the valve core, and the arranging direction of the medium inlet is vertical to the moving direction of the main valve core; the medium outlet is formed in the lower end of the main valve body; the lower end of the main valve core is in line contact with a boss at the medium outlet.
Furthermore, after the medium enters through the medium inlet, the area of the medium on the upper action surface of the main valve core is equal to the area of the medium on the lower action surface of the main valve core, namely, the pressure balance structural design is adopted, so that the influence of inlet pressure on the stress of the main valve core is reduced, the main valve core can keep stable sealing specific pressure with the valve seat of the valve body under different pressure working conditions, and the sealing requirement is ensured to be met.
Furthermore, in order to improve the overall sealing performance of the main valve, sealing rings are arranged between the upper valve core section and the middle valve core section of the main valve core and the main valve body, and the sealing rings can be O-shaped rubber sealing rings.
Furthermore, in order to realize a quick response design, the number of turns of the coil in the two-position three-way electromagnetic valve is 480-520, and the resistance of the coil is 19.5-20 omega, namely, a design mode of small number of turns and large current is adopted, so that the inductance of the coil is reduced, and the current rising speed when the coil is powered on and the current falling speed when the coil is powered off are improved.
Further, the number of turns of the coil in the two-position three-way electromagnetic valve is 500, and the resistance of the coil is 19.7 Ω.
Furthermore, in order to ensure the main valve spring to stretch and draw back a score, a spring installation groove is arranged on the main valve body, the main valve spring is arranged in the spring installation groove, one end of the main valve spring is tightly propped against the bottom surface of the upper section of the valve core, and the other end of the main valve spring is tightly propped against the bottom surface of the spring installation groove.
Furthermore, the main valve body, the auxiliary valve body of the auxiliary valve and the auxiliary valve body of the auxiliary valve are integrally formed. In the aspect of accelerating the speed of inflation pressure building and deflation pressure relief of the control cavity of the main valve, the main valve body and the auxiliary valve body are integrally designed, the flow channel and the control air cavity are optimally distributed, the volume of the control air cavity is reduced, and the quick pressure building and action response of the corresponding control cavity are realized.
The invention has the advantages that:
1. the invention has the advantages of quick response and reliable action under the working conditions of high flow and high pressure, and the two electromagnetic valves are adopted to respectively control the inflation and the exhaust of the opening air cavity and the closing air cavity of the main valve, so that the opening or the closing of the main valve core realizes double active control and quick response, namely the opening and the closing response speed of the control valve of the high-pressure and high-flow engine can be effectively improved; therefore, the opening and closing response of the engine is comprehensively improved, the starting acceleration and the shutdown deceleration of the engine are improved, a key technology is reserved for developing a rail-controlled power system with a quick response requirement, and the invention can be applied to a high-thrust quick-response engine power system with strong maneuverability, limited installation space and high effective load requirement.
2. The on-off auxiliary valve and the on-off auxiliary valve have the same structure, both adopt two-position three-way electromagnetic valves, and have simple structure and reliable on-off; the opening and closing of the main valve core are realized by controlling the gas entering the main valve core opening chamber or the closing chamber after the corresponding auxiliary valve is opened, so that the double-active control of opening and closing the main valve core is realized, and the response speed of the control valve is improved.
3. The main valve adopts the layout of independent air cavities on the upper part and the lower part of a piston on the design of a driving structure, namely an open air cavity and a closed air cavity respectively, and a main valve spring is arranged in the closed air cavity; the main valve spring and the air closing cavity are loaded simultaneously, and a strong closing acting force is provided for the main valve core in the power-off closing process of the opening auxiliary valve, so that the closing response speed is improved.
4. The area of the medium on the upper action surface of the main valve core is equal to the area of the medium on the lower action surface of the main valve core, so that the influence of the pressure of the inlet medium on the action of the main valve core can be eliminated in the closing state of the main valve core, the closing counter force is reduced, and the reliable closing of the main valve core is ensured.
5. According to the invention, the coils in the auxiliary opening valve and the auxiliary closing valve adopt a design mode of small turns and large current, so that the inductance of the coils is reduced, and the current rising speed when the coils are electrified and the current falling speed when the coils are powered off are improved.
6. According to the invention, through the flow passage layout and the integrated design of the main valve structure and the auxiliary valve structure, the flow passage and the control air cavity are optimally arranged, the volume of the control air cavity is reduced, and the rapid pressure build and action response of the corresponding control cavity are realized.
Drawings
Fig. 1 is a structural schematic diagram of an electromagnetic pilot control valve with double active controls of opening and closing.
The reference numbers are as follows:
1-a main valve; 2-opening the auxiliary valve; 3-closing the auxiliary valve; 4-main valve body; 5-main valve core; 6-main valve spring; 7-sealing ring; 8-gas-off cavity; 9-opening an air cavity; 10-an auxiliary valve core; 11-a coil; 12-an auxiliary valve spring; 13-spring mounting groove.
Detailed Description
The invention is described in further detail below with reference to the following figures and specific examples:
as shown in fig. 1, the electromagnetic pilot control valve with double active controls of opening and closing comprises a main valve 1, an auxiliary opening valve 2 and an auxiliary closing valve 3; the auxiliary valve 2 and the auxiliary valve 3 are electromagnetic valves.
The main valve 1 includes a main valve body 4, a main valve spool 5, and a main valve spring 6.
The main valve body 4 is provided with a medium inlet and a medium outlet; main valve element 5 is sealingly arranged in main valve body 4, and two independent air chambers, namely an open air chamber 9 and a closed air chamber 8, are formed in main valve body 4. The main valve core 5 is divided into a valve core upper section, a valve core middle section and a valve core lower section; an open air cavity 9 is arranged above the upper section of the valve core, the outer wall of the upper section of the valve core is matched with the inner wall of the main valve body 4, the valve core is of a full-size structure, the spatial structure size of the main valve body 4 can be utilized to the maximum extent, the maximization of a pressure sensing area is realized, and the opening acting force and the opening response speed are improved; an O-shaped rubber sealing ring 7 is arranged between the upper section of the valve core and the main valve body 4. The outer wall of the middle section of the valve core and the main valve body 4 form an air closing cavity 8 below the upper section of the valve core, a main valve spring 6 is arranged in the air closing cavity 8 (a spring mounting groove 13 is arranged on the main valve body 4 where the air closing cavity 8 is located, the main valve spring 6 is arranged in the spring mounting groove 13, one end of the main valve spring abuts against the bottom surface of the upper section of the valve core, the other end of the main valve spring abuts against the bottom of the spring mounting groove 13), and an O-shaped rubber sealing ring 7 is also arranged between the middle section of the valve core and. The medium inlet is arranged on the side wall of the main valve body 4 corresponding to the lower section of the valve core, and the arrangement direction of the medium inlet is vertical to the movement direction of the main valve core 5; the medium outlet is arranged at the lower end of the main valve body 4; the lower end of main valve core 5 is in line contact with the boss at the medium outlet, that is, under the condition that the auxiliary valve 2 and the auxiliary valve 3 are both cut off, the main valve core 5 is closed under the action of the main valve spring 6, and the medium inlet is blocked from the medium outlet.
An open air cavity 9 and a close air cavity 8 which drive the main valve element 5 to open or close are respectively controlled by two independent two-position three-way electromagnetic pilot valves, namely an open auxiliary valve 2 and a close auxiliary valve 3.
The two-position three-way electromagnetic valve comprises an auxiliary valve body, an auxiliary valve core 10, an auxiliary valve spring 12 and a coil 11; one end of the auxiliary valve body is provided with an exhaust port, and the other end of the auxiliary valve body is provided with an air inlet and an air outlet; a coil 11 is wound in the side wall of the auxiliary valve body; the auxiliary valve core 10 is positioned in the auxiliary valve body and is matched with the auxiliary valve body; an air flow channel for communicating the air outlet and the air outlet is arranged on the auxiliary valve core 10; an auxiliary valve spring 12 is arranged between the end part of the auxiliary valve core 10 close to the exhaust port and the auxiliary valve body (in order to ensure the reliable extension and retraction of the auxiliary valve spring 12, a spring installation groove 13 is also arranged on the auxiliary valve body at the exhaust port end, one end of the auxiliary valve spring 12 tightly props against the groove bottom of the spring installation groove 13, and the other end tightly props against the end surface of the auxiliary valve core 10), so that closing force is provided for the auxiliary valve core 10, and a sealing pair is formed between the auxiliary valve core 10 and the air inlet; the coil 11 is electrified to provide an opening force for the auxiliary valve core 10, so that the auxiliary valve core 10 and the exhaust port form a sealing pair, and the air inlet is communicated with the air outlet. The air outlet of the auxiliary opening valve 2 is communicated with an air opening cavity 9 of the main valve 1 and is used for controlling the air inflation and the air exhaust of the air opening cavity 9 and providing opening force for the main valve core 5; the air outlet of the auxiliary valve 3 is communicated with the air closing cavity 8 of the main valve 1 and is used for controlling the air filling and exhausting of the air closing cavity 8 and providing closing force for the main valve core 5. The concrete expression is as follows: when the coil 11 is not electrified, the auxiliary valve core 10 is attached and sealed with the valve seat at the air inlet end under the action of the auxiliary valve spring 12, and an air inlet passage is cut off; after the coil 11 is electrified, electromagnetic suction force is generated between the auxiliary valve core 10 and the coil 11, the auxiliary valve core 10 moves to an opening position after overcoming the spring force of an auxiliary valve spring 12, the auxiliary valve core is attached and sealed with a valve seat at the exhaust port end, an exhaust passage is cut off, and control gas enters a corresponding gas cavity to be inflated and build pressure to drive the main valve core 5 to act; after the coil 11 is powered off, the auxiliary valve core 10 returns to the closed position under the action of the auxiliary valve spring 12, the air inlet channel is cut off, the air outlet channel is opened, and the corresponding air cavity is deflated and decompressed.
Based on the structure, a double-active independent control mode of pneumatic control opening and pneumatic control closing is adopted, so that quick response of the opening and closing of the main valve element 5 can be realized; through the structural layout design of the flow channel, the air opening cavity 9 controls the opening of the main valve element 5 in a ventilation mode, and the air closing cavity 8 controls the closing of the main valve element 5 in a ventilation mode, so that a double-active control mode of opening and closing the main valve element 5 is realized, and the response speed of the control valve is improved.
In order to realize the fast response design, the number of turns of the coil 11 in the used two-position three-way electromagnetic valve is 500, and the electric group of the coil 11 is 19.7, namely, a design mode of small number of turns and large current is adopted, so that the inductance of the coil 11 is reduced, and the current rising speed when the coil 11 is powered on and the current falling speed when the coil 11 is powered off are improved.
Meanwhile, in order to reduce the volume of the control air cavity, realize the quick pressure build-up and action response of the corresponding control cavity and accelerate the speed of the inflation pressure build-up, deflation and pressure release of the control cavity of the main valve 1, the main valve body 4, the auxiliary valve body of the opening auxiliary valve 2 and the auxiliary valve body of the closing auxiliary valve 3 are integrally formed, and the flow channel and the control air cavity are optimally distributed.
After the medium enters through the medium inlet, the area of the medium on the upper acting surface of the main valve element 5 is equal to the area of the medium on the lower acting surface of the main valve element 5, namely, the pressure balance structural design is adopted, so that the influence of the inlet pressure on the stress of the main valve element 5 is reduced, the main valve element 5 can keep stable sealing specific pressure with the valve seat of the valve body under different pressure working conditions, and the sealing requirement is ensured. In addition, the design ensures that the main valve core 5 is in a closed state when being subjected to medium hydraulic pressure in an opening state. The main valve core 5 adopts a reverse unloading type structure scheme, the influence of inlet medium pressure on the valve core can be partially eliminated in a closing state, the closing counter force is reduced, control gas enters the opening gas cavity 9 of the main valve 1 after the opening auxiliary valve 2 is electrified and opened, and the main valve core 5 is quickly opened by overcoming the counter force after pressure is built. In the open state, the main valve core 5 is maintained in the open state under the action of control gas to overcome the force of a hydraulic medium in the closing direction and the spring force, the control gas flows out of the exhaust passage of the auxiliary valve after the opening auxiliary valve 2 is closed, the acting force of the control gas is reduced, the control gas quickly enters the closing control cavity of the main valve 1 after the closing auxiliary valve 3 is opened, the closing driving force is increased, and the closing response speed is increased.
The working principle of the invention is as follows: when the control valve works, the on-off of the auxiliary valve core is controlled by switching on and off the two electromagnetic auxiliary valves, so that the on-off control of control gas is realized. After the auxiliary valve is electrified to open the air inlet passage, air is filled into the air opening cavity of the main valve core through the air inlet passage, and the main valve core is driven to open by overcoming the force of the main spring after pressure building. After the auxiliary valve is powered off, the air inlet passage is closed, the air exhaust passage is opened, and the air in the air opening cavity of the main valve core is exhausted through the air exhaust passage of the auxiliary valve to be decompressed. Meanwhile, the auxiliary closing valve is electrified to open the air inlet passage, the air is filled into the main valve core air closing cavity through the air inlet passage, additional main closing power is provided for the main valve core after pressure is built, and under the combined action of the control power of the air closing cavity, the main valve spring force and the medium hydraulic force, the residual acting force that the air is not timely discharged from the air opening cavity is overcome, the main valve core is driven to close, and quick closing response is realized. After the main valve core is closed in place, the auxiliary valve is powered off to close the auxiliary valve core, the air inlet is cut off, the exhaust channel is opened, and the air in the air closing cavity is discharged and decompressed. At the moment, the control valve is restored to the initial state of non-electrified closing, the main valve core is closed and sealed, and the two auxiliary valve cores are both closed and sealed at the air inlet end.
The invention adopts two electromagnetic pilot valves to independently control the air inlet and the air outlet of the air opening cavity and the air closing cavity, realizes that the opening auxiliary valve is electrified to open the control air and enter the air opening cavity to drive the main valve core to open, the opening auxiliary valve is powered off to exhaust, and meanwhile, the closing auxiliary valve is electrified to open the control air and enter the air closing cavity to drive the main valve core to close, realizes the double active control of the opening and the closing of the main valve core, and improves the response speed of the control valve. The control valve overcomes the defects that the prior engine control valve is closed by relying on the spring reset force in the closing process, the main valve control cavity is closed after air is exhausted and decompressed, the main valve core is influenced by the gradual reduction of the exhaust and decompression speed and the reset spring force in the closing process, and the closing response is slow. Through the integral structure design, two electromagnetic pilot valves are adopted to actively control the opening and closing of the air cavity of the main valve core, the auxiliary closing valve is electrified and opened at the same time except depending on the reset spring force in the closing process of the main valve core, so that control air enters the air closing cavity of the main valve core, and active control force is provided for the closing of the main valve core after pressure is built, thereby realizing quick closing response. The electromagnetic auxiliary valve adopts a two-position three-way control valve structure, when the electromagnetic auxiliary valve is not electrified, the air inlet end of the valve core is closed and sealed under the action of spring force, the control gas passage is cut off, and the air outlet end is in an open state. After the power is on, the upper end of the valve core generates suction force and then overcomes spring force to suck, the air inlet end passage is opened, and the air outlet end passage is closed. And in the process of electrifying and powering off the electromagnetic auxiliary valve, the on-off control of the control gas and the inflation and exhaust control of the corresponding control cavity are realized.
In a certain attitude control power system test, the system provides the opening and closing quick response control requirements under the working conditions of high pressure and large flow for a high-room pressure quick response rail control engine control valve; the inlet pressure is 5 MPa-12 MPa, the flow is not less than 2.2kg/s, and the opening and closing response time of the control valve is not more than 6 ms. The power system adopts the structure of the electromagnetic pilot gas control valve with double active controls of opening and closing, and completes the performance inspection of air tightness, opening and closing action, pull-in voltage, response time and the like, the test result shows that all the performances can meet the requirements, the developed product is tested and examined by an engine, the control valve works normally and responds quickly, the engine realizes the quick response design target, and the quick starting and shutdown response requirements of the engine are met.
The invention can be applied to liquid rocket engines, can be popularized and used in quick response control valves for satellite in-orbit execution systems, ground test systems and other systems, has wide application prospect in high-thrust quick response engine power systems with strong mobility, limited installation space and high requirement on effective load, and has the advantages of quick response, reliable action and the like under the working conditions of high flow and high pressure.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications or substitutions can be easily made by those skilled in the art within the technical scope of the present disclosure.
Claims (8)
1. The utility model provides an open and close two initiative control's electromagnetism guide air control valve which characterized in that: comprises a main valve (1), an auxiliary opening valve (2) and an auxiliary closing valve (3);
the main valve (1) comprises a main valve body (4), a main valve core (5) and a main valve spring (6);
the main valve core (5) is arranged in the main valve body (4), and two independent air cavities, namely an opening air cavity (9) and an closing air cavity (8), are formed in the main valve body (4); the main valve spring (6) is arranged in the air closing cavity (8); the main valve body (4) is provided with a medium inlet and a medium outlet;
the auxiliary opening valve (2) and the auxiliary closing valve (3) are both electromagnetic valves, wherein the auxiliary opening valve (2) is used for controlling the inflation and the exhaust of the air opening cavity (9) and providing opening force for the main valve core (5); the auxiliary closing valve (3) is used for controlling the inflation and the exhaust of the air closing cavity (8) and providing closing force for the main valve core (5);
the auxiliary opening valve (2) and the auxiliary closing valve (3) adopt two-position three-way electromagnetic valves with the same structure;
the two-position three-way electromagnetic valve comprises an auxiliary valve body, an auxiliary valve core (10), an auxiliary valve spring (12) and a coil (11);
one end of the auxiliary valve body is provided with an exhaust port, and the other end of the auxiliary valve body is provided with an air inlet and an air outlet; a coil (11) is wound in the side wall of the auxiliary valve body;
the auxiliary valve core (10) is positioned in the auxiliary valve body and is matched with the auxiliary valve body, and an air flow channel for communicating the air outlet and the air outlet is formed in the auxiliary valve core (10);
an auxiliary valve spring (12) is arranged between the end part of the auxiliary valve core (10) close to the exhaust port and the auxiliary valve body, and the auxiliary valve spring (12) provides closing force for the auxiliary valve core (10) to enable the auxiliary valve core (10) and the air inlet end to form a sealing pair;
the coil (11) is electrified to provide opening force for the auxiliary valve core (10), so that a sealing pair is formed between the auxiliary valve core (10) and the exhaust port end, and the air inlet is communicated with the air outlet;
the air outlet of the auxiliary valve (2) is communicated with an air opening cavity (9) of the main valve (1);
the air outlet of the auxiliary valve (3) is communicated with the air closing cavity (8) of the main valve (1).
2. The opening-closing dual-active control electromagnetic pilot control valve according to claim 1, wherein:
the main valve core (5) is divided into a valve core upper section, a valve core middle section and a valve core lower section;
an air opening cavity (9) is arranged above the upper section of the valve core, and the outer wall of the upper section of the valve core is matched with the inner wall of the main valve body (4);
the outer wall of the middle section of the valve core and the main valve body (4) form an air-closing cavity (8) below the upper section of the valve core;
the medium inlet is formed in the side wall of the main valve body (4) corresponding to the lower section of the valve core, and the forming direction of the medium inlet is vertical to the moving direction of the main valve core (5); the medium outlet is arranged at the lower end of the main valve body (4); the lower section of the valve core is in line contact with a boss at the medium outlet.
3. The opening-closing dual-active control electromagnetic pilot control valve according to claim 2, wherein:
after the medium enters through the medium inlet, the area of the medium on the upper acting surface of the main valve core (5) is equal to the area of the medium on the lower acting surface of the main valve core (5).
4. The opening-closing dual-active control electromagnetic pilot control valve according to claim 3, wherein:
sealing rings (7) are arranged between the upper valve core section and the middle valve core section of the main valve core (5) and the main valve body (4).
5. The opening-closing dual-active-control electromagnetic pilot control valve according to claim 4, wherein:
the number of turns of the coil (11) in the two-position three-way electromagnetic valve is 480-520, and the resistance of the coil (11) is 19.5-20 omega.
6. The opening-closing dual-active control electromagnetic pilot control valve according to claim 5, wherein:
the number of turns of the coil (11) in the two-position three-way electromagnetic valve is 500, and the resistance of the coil (11) is 19.7 omega.
7. The opening-closing dual-active control electromagnetic pilot control valve according to claim 6, wherein:
the main valve body (4) is provided with a spring installation groove (13), the main valve spring (6) is arranged in the spring installation groove (13), one end of the main valve spring props against the bottom surface of the upper section of the valve core, and the other end of the main valve spring props against the bottom of the spring installation groove (13).
8. The opening-closing dual-active control electromagnetic pilot control valve according to any one of claims 1 to 7, wherein:
the main valve body (4) is integrally formed with the auxiliary valve body of the auxiliary opening valve (2) and the auxiliary valve body of the auxiliary closing valve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910802345.1A CN110541960B (en) | 2019-08-28 | 2019-08-28 | Electromagnetic pilot gas control valve with double active controls of opening and closing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910802345.1A CN110541960B (en) | 2019-08-28 | 2019-08-28 | Electromagnetic pilot gas control valve with double active controls of opening and closing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110541960A CN110541960A (en) | 2019-12-06 |
| CN110541960B true CN110541960B (en) | 2021-01-12 |
Family
ID=68712232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910802345.1A Active CN110541960B (en) | 2019-08-28 | 2019-08-28 | Electromagnetic pilot gas control valve with double active controls of opening and closing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110541960B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115638265A (en) * | 2022-11-16 | 2023-01-24 | 西安空天引擎科技有限公司 | High-pressure starting control valve of liquid rocket engine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9074360B2 (en) * | 2010-03-30 | 2015-07-07 | Toto Ltd. | Flow channel opening/closing apparatus |
| CN103496190B (en) * | 2013-09-29 | 2015-05-13 | 无锡市拓发自控设备有限公司 | Safety dual electromagnetic valve for mechanical press |
| CN105387218B (en) * | 2015-12-10 | 2018-08-17 | 西安航天动力研究所 | A kind of gas control guide electromagnetic valve |
| JP2017137951A (en) * | 2016-02-04 | 2017-08-10 | Ｋｙｂ株式会社 | Solenoid valve |
| CN106246988B (en) * | 2016-09-12 | 2018-07-03 | 西安航天动力试验技术研究所 | The operated pneumatic valve control system and method for a kind of quick response |
| CN106989195B (en) * | 2017-05-11 | 2023-04-07 | 西安航天动力研究所 | Pilot-operated electromagnetic pneumatic valve and combined control valve |
| CN106958676B (en) * | 2017-05-16 | 2023-07-21 | 无锡市华通气动制造有限公司 | Automatic pressure regulating valve |
-
2019
- 2019-08-28 CN CN201910802345.1A patent/CN110541960B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110541960A (en) | 2019-12-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2312863T5 (en) | Improved system and method of flight control surface actuation | |
| CN110486479B (en) | Large-flow three-stage pilot-operated electromagnetic valve | |
| CN105465409B (en) | Electromagnetic pilot gas control two-position three-way valve | |
| CN106989195B (en) | Pilot-operated electromagnetic pneumatic valve and combined control valve | |
| KR101675660B1 (en) | Actuator | |
| WO2013090698A1 (en) | Valve activation in compressed-gas energy storage and recovery systems | |
| CN110541960B (en) | Electromagnetic pilot gas control valve with double active controls of opening and closing | |
| CN109538773A (en) | A kind of high pressure pilot-operated type latching valve | |
| CN108953683A (en) | Solenoid valve | |
| CN110595720B (en) | Rapid switch valve device for wind tunnel application and opening method thereof | |
| CN1077171A (en) | Ice removal | |
| CN113294553A (en) | Full-unloading disc type magnetic pole large-drift-diameter two-position three-way electromagnetic valve | |
| CN107554736B (en) | Bionic flying cuttlefish sea-air vehicle capable of realizing soft variable structure | |
| CN114524083B (en) | Buoyancy-adjustable wing control surface structure | |
| CN114802159B (en) | Emergency valve | |
| CN208123577U (en) | A kind of solenoid valve of through-type gas circuit structure | |
| CN114215936A (en) | Pneumatic double-sealing control valve | |
| CN113153853B (en) | Pipeline control device, valve body and liquid path control system for pile hammer | |
| CN112377329B (en) | Gas recovery type POGO suppressor for liquid rocket | |
| CN112303276A (en) | Large-caliber electromagnetic pilot pneumatic control piston rack transmission ball valve | |
| CN112066070B (en) | Variable flow electromagnetic pilot control valve | |
| CN111516858A (en) | Electric servo actuator | |
| CN114673422B (en) | Cabin door power assisting system considering space pressure change | |
| CN215805939U (en) | Contactless seat shock absorption pneumatic control valve based on air pressure balance principle | |
| WO2023036196A1 (en) | Solenoid valve and bottle valve having same, gas storage device, and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |