Multi-redundancy high-voltage electric explosion valve

Abstract

The multi-redundancy high-voltage electric explosion valve comprises a shell, a cutter, a pin, a cutting cap, a piston, a small spring, an adapter, an O rubber ring, a check ring, a gasket and an igniter. The piston and the cutter are arranged in an inner cavity of the shell; the small spring and the pin are sequentially arranged in the cutter; the cutter and the piston are provided with O-shaped rubber ring grooves, and the O-shaped rubber ring and the check ring are arranged in the O-shaped rubber ring grooves; the cutting caps on the two sides are installed in the installation holes of the shell in a threaded connection mode. The adapter is installed on the shell through threads and then connected through laser welding or electron beam welding. A conical structure is arranged on one side of the cutter; a pin lock groove and a conical groove are formed in the side wall of the inner cavity of the shell. The multi-redundancy high-voltage electric explosion valve is provided with a split type shearing moving part, after the igniter is detonated, shearing and springback prevention can be achieved by directly utilizing the acting force of a high-pressure medium, and the design difficulty of shearing and springback prevention of the electric explosion valve under the high-pressure working condition can be effectively solved.

Description

Technical Field

[0001] The invention relates to a multi-redundant high-voltage electric explosion valve, belonging to the technical field of fluid control of aerospace pressurized delivery systems. Background Art

[0002] As a standalone device with fast response, low cost, simple principle, easy control, good sealing, and relatively stable performance, electric explosion valves are widely used in the pressurized gas flow systems of liquid rockets, satellites, space probes, and manned spacecraft. The performance and reliability of electric explosion valves directly impact the operation of the entire system and even the success of the mission. Traditional electric explosion valves are often used in medium- and low-pressure environments. The igniter output energy is often higher than the operating pressure, which exerts little force on moving components such as the cutter. Conical or wedge-shaped structures are often used to prevent rebound after the electric explosion valve is detonated. The angle of the cone or wedge structure directly affects the locking force after detonation. In high-pressure environments, the high-pressure medium exerts a significant force on the cutter, placing strict requirements on the structural dimensions of the weak point at the cutter cap and the matching design of the igniter energy. The higher the operating pressure, the thicker the weak point at the cutter cap, and the greater the required cutting energy. This often requires a higher igniter output energy to meet the required operating conditions. However, the higher the igniter energy, the more challenging the connection reliability between the igniter and the housing. In addition, the setting of the cone angle also poses certain challenges. It is often necessary to conduct experiments or simulation analyses on a large number of angle matching structures, which wastes a lot of time and cost. Therefore, there is an urgent need for a reliable multi-redundant high-pressure electric explosion valve for use in high-pressure environments.

[0003] Chinese invention patent application CN103032204A discloses a non-electric explosion-transmitting redundantly controlled electric explosion isolation valve. This valve structure utilizes a cutter's cone angle that matches the cone angle of the housing to lock the cutter after detonation. The valve's movable components, consisting of a cutter and a piston, balance the upper and lower forces on the cutter after detonation, preventing the inlet medium's force from pushing the cutter through the weak point of the pipe nozzle. Furthermore, high-pressure forces exert a reverse force on the cutter after detonation, affecting the wedging between the cutter and the cone angle of the housing under high-pressure conditions.

[0004] Chinese invention patent ZL201210463010.X discloses a wedge-type anti-rebound electric explosion valve. This valve uses a cone angle on the stem that matches the cone angle on the housing to achieve locking after the stem is pulled apart after detonation. The valve uses a pull-off method to cut off the stem. Summary of the Invention

[0005] The technical problem solved by the present invention is to overcome the deficiencies of the prior art and provide a multi-redundant high-voltage electric explosion valve to solve the problem of high energy demand of the igniter under high-pressure working conditions.

[0006] The technical solution of the present invention is:

[0007] The present invention discloses a multi-redundant high-voltage electric explosion valve, comprising: a housing, a cutter, a pin, a cutting cap, a piston, a small spring, an adapter and an igniter; wherein,

[0008] One end of the housing is connected to the igniter via an adapter; the piston is placed in the housing;

[0009] An inlet channel and an outlet channel are provided on both sides of the shell;

[0010] The two cutting caps are symmetrically arranged in the inlet channel and the outlet channel of the shell along the axis of the shell.

[0011] One end of the cutting cap is an open end, and the other end is a closed end; the outer wall of the closed end is provided with an oblique cut;

[0012] The cutter is placed in the inner cavity of the housing and is in contact with the closed end of the cutting cap;

[0013] After the igniter is ignited, high-temperature and high-pressure gas is generated, which pushes the piston to move toward the cutter. The cutter cuts off the closed end of the cutting cap from the oblique incision. The high-pressure medium in the inlet channel flows to the outlet channel through the annular gap between the cutter and the shell, thereby realizing the connection between the inlet channel and the outlet channel.

[0014] Furthermore, the above-mentioned multi-redundant high-voltage electric explosion valve also includes: a pin and a small spring; the pin and the small spring are sequentially arranged in the cutter; the pin fits tightly with the inner cavity of the shell under the action of the small spring.

[0015] The multi-redundant high-voltage electric explosion valve according to claim 2 is characterized in that a locking groove is provided at one end of the housing cavity away from the adapter;

[0016] After the cutter cuts off the closed end of the cutting cap, it continues to move, and the pin is pushed out by the small spring and stuck into the locking groove, realizing the first anti-cutter rebound.

[0017] Furthermore, in the above-mentioned multi-redundant high-voltage electric explosion valve, the inner cavity of the shell at one end away from the adapter is a conical cavity; one end of the cutter is a conical surface;

[0018] After the cutter cuts off the closed end of the cutting cap, it continues to move, and the conical end of the cutter enters the conical cavity to form a hard seal, thereby achieving a second anti-cutter rebound.

[0019] Furthermore, in the above-mentioned multi-redundant high-voltage electric explosion valve, after the high-pressure medium in the inlet channel enters the inner cavity of the shell, it acts on the end face of the cutter close to the adapter, and the cutter is subjected to a force toward the conical end of the cutter, thereby realizing the third anti-cutter rebound.

[0020] Furthermore, in the above-mentioned multi-redundant high-voltage electric explosion valve, it also includes a first O-ring, a first retaining ring, a second retaining ring, a first gasket and a second gasket; wherein,

[0021] The cutting cap is provided with a first annular O-ring groove, and the first O-ring and the first retaining ring are placed in the first annular O-ring groove to achieve sealing between the cutting cap and the housing;

[0022] The piston is provided with a third annular O-ring groove, and the second retaining ring and the O-ring are placed in the third annular O-ring groove to achieve sealing between the piston and the housing;

[0023] The adapter and one end of the housing are sealed with a first gasket;

[0024] A second gasket is used to seal between the adapter and the igniter.

[0025] Furthermore, in the above-mentioned multi-redundant high-voltage electric explosion valve, the cutter comprises a first cylindrical segment, a second cylindrical segment, a third cylindrical segment and a fourth cylindrical segment connected in sequence; wherein,

[0026] Drop grooves are symmetrically provided on both sides of the second cylindrical section; the closed end of the cutting cap is placed in the drop groove;

[0027] Pin holes are symmetrically provided on both sides of the fourth cylindrical segment, and the small spring and the pin are arranged in the pin holes;

[0028] The outer diameter of the first cylindrical segment is smaller than the outer diameter of the second cylindrical segment, and a flow channel is formed between the outer diameter of the first cylindrical segment and the inner cavity of the housing;

[0029] A threaded hole is provided at one end of the first cylindrical section for assembling an electric explosion valve.

[0030] Furthermore, in the above-mentioned multi-redundant high-voltage electric explosion valve, there is a clearance fit between the closed end of the cut cap and the drop groove.

[0031] Furthermore, in the above-mentioned multi-redundant high-voltage electric explosion valve, it also includes a second O-ring, and a plurality of second annular O-ring grooves are provided on the outside of the third cylindrical segment, and the second O-ring is placed in the second annular O-ring groove.

[0032] Furthermore, in the above-mentioned multi-redundant high-voltage electric explosion valve, the bevel angle of the bevel cut is 30° to 60°.

[0033] The beneficial effects of the present invention and the prior art are:

[0034] (1) The present invention adopts an internal piston-cutter split structure design, which solves the technical problem that the wedging state of the existing electric explosion valve products after detonation is restricted by the ignition energy of the igniter;

[0035] (2) The present invention adopts an internal piston-cutter split structure design, which effectively solves the technical problems of large igniter energy requirements under high-pressure working conditions and preventing the cutter from rebounding under high pressure after detonation;

[0036] (3) The present invention adopts a "mechanical-pressure" redundant combination anti-rebound method to achieve the reliability of anti-rebound control after the electric explosion valve is detonated, solving the current situation of low reliability of single anti-rebound in existing products;

[0037] (4) The present invention adopts a "mechanical-pressure" redundant combination anti-rebound method, which realizes the three anti-rebound combinations of the electric explosion valve product: anti-rebound by the action of high-pressure medium + anti-rebound by locking pin + anti-rebound by cone angle;

[0038] (5) The present invention adopts an internal piston-cutter split structure design, that is, the piston and the cutter are two components, which realizes that after the electric explosion valve is detonated, the cutter can be sheared with the help of the force of the high-pressure medium, solving the technical problem that the higher the operating pressure, the higher the cutting cap strength, and the higher the required igniter energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A three-dimensional structural diagram of a multi-redundant high-voltage electric explosion valve according to a preferred embodiment of the present invention;

[0040] Figure 2 This is a cross-sectional view of a multi-redundant high-voltage electric explosion valve according to a preferred embodiment of the present invention;

[0041] Figure 3 This is a schematic diagram of the cutter structure in a preferred embodiment of the present invention;

[0042] Figure 4 This is a schematic diagram of the cap cutting structure in a preferred embodiment of the present invention;

[0043] Figure 5 Schematic diagram of the threaded adapter structure in a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0044] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0045] like Figure 1 As shown, the present invention discloses a multi-redundant high-voltage electric explosion valve, comprising: a housing 1, a cutter 2, a pin 3, a cutting cap 7, a piston 8, a small spring 4, an adapter 10 and an igniter 12; wherein,

[0046] One end of the housing 1 is connected to the igniter 12 via an adapter 10; the piston 8 is placed in the housing 1;

[0047] An inlet channel and an outlet channel are provided on both sides of the housing 1;

[0048] Two cutting caps 7 are symmetrically arranged in the inlet channel and the outlet channel of the housing 1 along the axis of the housing 1 .

[0049] The cutting cap 7 has an open end at one end and a closed end at the other end; the outer wall of the closed end is provided with an oblique cut 702;

[0050] The cutter 2 is placed in the inner cavity of the housing 1 and is in contact with the closed end of the cutting cap 7;

[0051] After the igniter 12 is ignited, high-temperature and high-pressure gas is generated, which pushes the piston 8 to move toward the cutter 2. The cutter 2 cuts off the closed end of the cutting cap 7 from the oblique cut 702. The high-pressure medium in the inlet channel flows to the outlet channel through the annular gap between the cutter 2 and the shell 1, thereby realizing the through-connection between the inlet channel and the outlet channel.

[0052] Preferably, it further comprises: a pin 3 and a small spring 4; the pin 3 and the small spring 4 are sequentially arranged in the cutter 2; the pin 3 fits tightly with the inner cavity of the shell 1 under the action of the small spring 4.

[0053] The multi-redundant high-voltage electric explosion valve according to claim 2 is characterized in that a locking groove 101 is provided at one end of the housing 1 away from the adapter 10;

[0054] After the cutter 2 cuts off the closed end of the cutting cap 7, it continues to move, and the pin 3 is pushed out by the small spring 4 and stuck into the locking groove 101, thereby realizing the first anti-cutter rebound.

[0055] Preferably, the inner cavity of the housing 1 at one end away from the adapter 10 is a tapered cavity; one end of the cutter 2 is a tapered surface;

[0056] After the cutter 2 cuts off the closed end of the cutting cap 7, it continues to move, and the conical end of the cutter 2 enters the conical cavity to form a hard seal, thereby achieving a second anti-cutter rebound.

[0057] Preferably, after the high-pressure medium in the inlet channel enters the inner cavity of the shell 1, it acts on the end face of the cutter 2 close to the adapter 10, and the cutter 2 is subjected to a force acting toward the conical end of the cutter 2, thereby achieving a third anti-cutter rebound effect.

[0058] Preferably, it further comprises a first O-ring 13, a first retaining ring 14, a second retaining ring 6, a first gasket 9 and a second gasket 11; wherein,

[0059] The cutting cap 7 is provided with a first annular O-ring groove, and the first O-ring 13 and the first retaining ring 14 are placed in the first annular O-ring groove to achieve sealing between the cutting cap 7 and the housing 1;

[0060] The piston 8 is provided with a third annular O-ring groove, and the second retaining ring 6 and the O-ring 5 are placed in the third annular O-ring groove to achieve sealing between the piston 8 and the housing 1;

[0061] The adapter 10 and one end of the housing 1 are sealed with a first gasket 9;

[0062] A second gasket 11 is used to seal the adapter 10 and the igniter 12 .

[0063] Preferably, the cutter 2 comprises a first cylindrical segment 204, a second cylindrical segment 206, a third cylindrical segment 207 and a fourth cylindrical segment 208 connected in sequence; wherein,

[0064] Drop grooves 202 are symmetrically provided on both sides of the second cylindrical section 206; the closed end of the cutting cap 7 is placed in the drop groove 202;

[0065] The fourth cylindrical section 208 has pin holes 203 symmetrically formed on both sides, and the small spring 4 and the pin 3 are disposed in the pin holes 203;

[0066] The outer diameter of the first cylindrical section 204 is smaller than the outer diameter of the second cylindrical section 206 , forming a flow channel between the outer diameter of the first cylindrical section 204 and the inner cavity of the housing 1 ;

[0067] A threaded hole is provided at one end of the first cylindrical section 204 for assembling an electric explosion valve.

[0068] Preferably, there is a clearance fit between the closed end of the cutting cap 7 and the drop groove 202 .

[0069] Preferably, a second O-ring 5 is further included, and a plurality of second annular O-ring grooves 205 are provided on the outer side of the third cylindrical section 207 , and the second O-ring 5 is placed in the second annular O-ring grooves 205 .

[0070] Preferably, the bevel angle of the bevel cut 702 is 30° to 60°.

[0071] Example

[0072] The following will be combined Figures 1 to 5 The multi-redundant high-voltage electric explosion valve of the present invention is further described in detail.

[0073] The multi-redundant high-pressure electric explosion valve of this embodiment is installed at the outlet of the high-pressure gas cylinder of the aerospace pressurization delivery system, and the inlet channel of the electric explosion valve is connected to the outlet of the high-pressure gas cylinder.

[0074] Figure 1 Shown is a three-dimensional structural diagram of a multi-redundant high-voltage electric explosion valve according to a preferred embodiment of the present invention; Figure 2 Shown is a cross-sectional view of a multi-redundant high-voltage electric explosion valve according to a preferred embodiment of the present invention; Figure 3 Shown is a schematic diagram of the cutter structure in a preferred embodiment of the present invention.

[0075] See also Figures 1 to 3The multi-redundant high-voltage electric explosion valve of this embodiment includes a housing 1, a cutter 2, a pin 3, a small spring 4, O-rings 5 ​​and 13, retaining rings 6 and 14, a cutting cap 7, a piston 8, an adapter 10, gaskets 11 and 9, and an igniter 12;

[0076] One end of the housing 1 is connected to the igniter 12 via a threaded adapter 10; a gasket 11 is provided between the adapter 10 and the housing 1;

[0077] The inner cavity of the housing 1 is designed to be conical at one end close to the cutter 2, and the angle of the cone is 15° to 25°;

[0078] One end of the cutter 2 is designed to be conical, and the conical angle is slightly larger than the conical angle of the inner cavity of the shell 1. The cutter 2 is placed in the inner cavity of the shell 1, and the conical end 201 of the cutter 2 faces the conical angle of the inner cavity of the shell 1; the cavity between the other end of the cutter 2 and the adapter 10 is the explosion chamber A;

[0079] The cut cap 7 is provided at the inlet and outlet passages of the housing 1. An O-ring 13 and a retaining ring 14 are provided between the cut cap 7 and the inlet and outlet passages of the housing 1. That is, a radial seal of "O-ring + retaining ring" is adopted between the cut cap 7 and the housing 1. The cut cap 7 is used to connect the outlet of the high-pressure gas cylinder of the aerospace booster delivery system;

[0080] The cutter 2 is provided with a drop groove 202. Before the igniter 12 is ignited and detonated, the weak end of the cutting cap 7 is placed in the drop groove 202. There is a gap fit between the weak end of the cutting cap 7 and the drop groove 202. The gap distance is 0.1mm to 0.3mm.

[0081] The tapered end of the cutter 2 is provided with two annular O-ring grooves; the O-ring 5 and the retaining ring 6 are installed in the annular O-ring grooves of the cutter;

[0082] The cutter 2 is provided with a pin hole 203, and the small spring 4 and the pin 3 are arranged in the pin hole 203

[0083] A locking groove 101 is provided on the side wall of the inner cavity of the housing 1 .

[0084] like Figure 3 , there is a small cylindrical section 204 in the cutter 2, whose outer diameter is smaller than that of other sections of the cutter 2, and a flow channel B is formed between the outer diameter of the small cylindrical section 204 and the inner cavity of the shell 1, as shown Figure 1 The cutter 2 is also provided with a plurality of sealing grooves 205, in which an O-ring 5 and a retaining ring 6 are provided; a mounting cavity 203 for a pin 3 is provided in the cutter 2, in which a pin 3 and a small spring 4 are placed.

[0085] like Figure 2The housing 1 has a threaded adapter mounting hole at one end and mounting holes for the cutting cap 7 on both sides. The two ends of the housing 1's inner cavity are connected to the threaded adapter mounting hole and the cutting cap mounting hole, respectively. One end of the housing 1's inner cavity is designed to be tapered, opposite the tapered end of the cutter 2. The housing 1 has an inlet channel and an outlet channel, both of which are sealed from the inner cavity of the housing 1. A pair of tabs are also provided on the outer wall of the housing 1 for mounting multiple redundant high-voltage electric explosion valves.

[0086] Figure 4 Shown is a schematic diagram of the cap cutting structure in a preferred embodiment of the present invention.

[0087] like Figure 4 An oblique cut 702 is provided on the outer wall of one end of the cut cap 7, and the oblique angle of the oblique cut 702 is 30° to 60° (preferably 30°). The oblique cut 702 is a weak position of the cut cap, and this end is defined as the weak end of the cut cap. The cut cap is provided with a vent cavity 701, and one end of the vent cavity 701 is open and the other end is closed. The open end of the vent cavity 701 is connected to the outlet of the high-pressure gas cylinder, and the closed end of the vent cavity 701 extends into the weak end of the cut cap. When the cut cap breaks along the fracture surface 703, the closed end of the vent cavity 701 breaks.

[0088] Figure 5 Shown is a schematic structural diagram of a threaded adapter in a preferred embodiment of the present invention.

[0089] like Figure 5 The threaded adapter 10 is provided with a through hole 1001, one side of the through hole 1001 is a Y-shaped hole, which is connected to the mounting hole of the igniter 12; one end of the through hole 1001 is provided with an internal thread for connecting the igniter 12; when the threaded adapter 10 is connected to the threaded adapter mounting hole of the shell 1 through the external thread, the front end of the threaded adapter 10 is inserted into the inner cavity of the shell 1, and a gasket 11 is installed between the adapter 10 and the shell 1.

[0090] See also Figures 2 to 5 Before the igniter 12 ignites, the weak end of the cutting cap 7 is not cut off, and the ventilation cavity 701 of the cutting cap 7 is a closed cavity, isolating the high-pressure medium in the cutting cap 7 from entering the flow channel B in the inner cavity of the shell 1; the tapered end of the cutter 2 does not enter the tapered end of the inner cavity of the shell 1. At this time, the tapered end of the inner cavity of the shell 1 forms the detonation compression chamber C; the pin 3 is tightly fitted with the inner cavity of the shell 1 under the compression force of the small spring 4;

[0091] After the igniter 12 is powered on and ignited, high-temperature and high-pressure gas is generated, which acts on the explosion chamber A and pushes the cutter 2 to move to the right (i.e., toward the tapered end). The movement of the cutter 2 cuts off the weak position of the cutting cap 7, and the weak end of the cutting cap 7 breaks and falls into the drop groove 202 of the cutter 2. The closed end of the ventilation chamber 701 breaks. When the pressure of the high-pressure gas is greater than the medium pressure, the end faces of the cutter 2 and the piston 8 fit tightly together, and the cutter 2 is balanced in force. The two move under the action of the high-temperature and high-pressure gas, and the pin 3 pops out under the action of the small spring 4. The end face of the pin 3 fits with the end face of the locking groove of the shell 1, and the tapered end of the cutter 2 enters the tapered end of the inner cavity of the shell 1, forming a tapered end. A hard seal is formed, thereby realizing the anti-rebound of the cutter 2 under the action of high pressure after the high-pressure electric explosion valve is detonated; when the high-pressure gas pressure is less than the medium pressure, the cutter 2 and the piston 8 are separated under the action of the medium, and the piston 8 moves toward the installation side of the igniter 12. The cutter 2 continues to move under the action of the high-pressure medium toward the tapered end side, and the pin 3 pops out under the action of the small spring 4. The end face of the pin 3 fits with the end face of the locking groove of the shell 1, and the tapered end of the cutter 2 enters the tapered end of the inner cavity of the shell 1 to form a hard seal. The cutter 2 is pressed toward the tapered end of the cutter under the action of the high-pressure medium force, thereby realizing the anti-rebound of the cutter 2 under the action of high pressure after the high-pressure electric explosion valve is detonated;

[0092] After the weak end of the cut cap 7 is broken, the flow channel B in the inner cavity of the shell 1 is connected through the vent cavity 701, thereby realizing the communication between the high-pressure gas cylinder outlet and the outlet channel of the shell 1, that is, realizing the communication between the high-pressure gas cylinder outlet and the downstream pipeline.

[0093] When the energy output by the igniter 12 is higher than the high-pressure medium pressure of the inlet channel of the shell, the cutter 2 cuts off the weak position of the cutting cap 7 under the action of the energy output by the igniter 12, realizing the working mode 1 of the electric explosion valve;

[0094] When the energy output by the igniter 12 is lower than the high-pressure medium pressure in the inlet channel of the shell, the energy output by the igniter 12 pushes the piston 8 and the cutter 2 to move and cut off the weak position of the cutting cap 7. After the high-pressure medium in the inlet channel enters the inner cavity of the shell 1, since the medium pressure is greater than the energy output by the igniter 12, the cutter 2 and the piston 8 are separated under the action of the unbalanced force, and the piston 8 is subjected to a force toward the side of the adapter 10. The piston 8 moves toward the side of the adapter 10. Under the action of the high-pressure medium pressure force and the kinetic energy converted from the output energy of the igniter 12, the cutter 2 continues to move toward the tapered end, realizing the second working mode of the electric explosion valve.

[0095] The high-pressure electric explosion valve of the present invention is an electric explosion valve with a pressure greater than 10 MPa. Preferably, the high-pressure electric explosion valve has a working pressure of 35 MPa and a diameter of 6 mm.

[0096] While the application has been described in detail by reference to preferred embodiments thereof, it should be recognized that the application can claim many modifications and embodiments. Accordingly, the application is not to be limited by the foregoing description, but only by the scope of the appended claims.

[0097] The description herein of any particular aspects of the application are not intended to be limiting. Variations to these aspects can become apparent to those of ordinary skill in the art upon reading the foregoing description.

Claims

1. A multi-redundant high-voltage electric explosion valve, characterized in that: include: Housing (1), cutter (2), pin (3), cutting cap (7), piston (8), small spring (4), adapter (10) and igniter (12); wherein, One end of the housing (1) is connected to the igniter (12) via an adapter (10); the piston (8) is placed in the housing (1); An inlet channel and an outlet channel are provided on both sides of the shell (1); Two cutting caps (7) are symmetrically arranged in the inlet channel and the outlet channel of the housing (1) along the axis of the housing (1). The cutting cap (7) has an open end at one end and a closed end at the other end; an oblique cut (702) is provided on the outer wall of the closed end; The cutter (2) is placed in the inner cavity of the housing (1) and is in contact with the closed end of the cutting cap (7); After the igniter (12) is ignited, high-temperature and high-pressure gas is generated, which pushes the piston (8) to move toward the cutter (2). The cutter (2) cuts off the closed end of the cutting cap (7) from the oblique cut (702). The high-pressure medium in the inlet channel flows to the outlet channel through the annular gap between the cutter (2) and the housing (1), thereby achieving the through-connection between the inlet channel and the outlet channel.

2. The multi-redundant high-voltage electric explosion valve according to claim 1, characterized in that: Also includes: A pin (3) and a small spring (4); the pin (3) and the small spring (4) are sequentially arranged in the cutter (2); the pin (3) is tightly fitted with the inner cavity of the shell (1) under the action of the small spring (4).

3. The multi-redundant high-voltage electric explosion valve according to claim 2, characterized in that: A locking groove (101) is provided in the housing (1) at one end away from the adapter (10); After the cutter (2) cuts off the closed end of the cutting cap (7), it continues to move, and the pin (3) is pushed out by the small spring (4) and stuck into the locking groove (101), thereby realizing the first anti-cutter rebound.

4. The multi-redundant high-voltage electric explosion valve according to claim 3, characterized in that: The inner cavity of the housing (1) is formed into a conical cavity at one end away from the adapter (10); one end of the cutter (2) is formed into a conical surface; After the cutter (2) cuts off the closed end of the cutting cap (7), it continues to move, and the conical end of the cutter (2) enters the conical cavity to form a hard seal, thereby realizing a second anti-cutter rebound.

5. The multi-redundant high-voltage electric explosion valve according to claim 4, characterized in that: After the high-pressure medium in the inlet channel enters the inner cavity of the housing (1), it acts on the end face of the cutter (2) close to the adapter (10), and the cutter (2) is subjected to a force acting toward the conical end of the cutter (2), thereby achieving a third anti-cutter rebound effect.

6. The multi-redundant high-voltage electric explosion valve according to claim 1, characterized in that: It also includes a first O-ring (13), a first retaining ring (14), a second retaining ring (6), a first gasket (9) and a second gasket (11); wherein, The cutting cap (7) is provided with a first annular O-ring groove, and the first O-ring (13) and the first retaining ring (14) are placed in the first annular O-ring groove to achieve sealing between the cutting cap (7) and the housing (1); The piston (8) is provided with a third annular O-ring groove, and the second retaining ring (6) and the O-ring (5) are placed in the third annular O-ring groove to achieve sealing between the piston (8) and the housing (1); The adapter (10) and one end of the housing (1) are sealed using a first gasket (9); A second gasket (11) is used to seal between the adapter (10) and the igniter (12).

7. The multi-redundant high-voltage electric explosion valve according to claim 2, characterized in that: The cutter (2) comprises a first cylindrical segment (204), a second cylindrical segment (206), a third cylindrical segment (207) and a fourth cylindrical segment (208) connected in sequence; wherein, Drop grooves (202) are symmetrically provided on both sides of the second cylindrical section (206); the closed end of the cutting cap (7) is placed in the drop groove (202); The fourth cylindrical section (208) has pin holes (203) symmetrically formed on both sides, and the small spring (4) and the pin (3) are arranged in the pin holes (203); The outer diameter of the first cylindrical section (204) is smaller than the outer diameter of the second cylindrical section (206), and a flow channel is formed between the outer diameter of the first cylindrical section (204) and the inner cavity of the housing (1); A threaded hole is provided at one end of the first cylindrical section (204) for assembling an electric explosion valve.

8. The multi-redundant high-voltage electric explosion valve according to claim 6, characterized in that: There is a clearance fit between the closed end of the cutting cap (7) and the falling groove (202).

9. The multi-redundant high-voltage electric explosion valve according to claim 6, characterized in that: It also includes a second O-ring (5), a plurality of second annular O-ring grooves (205) are provided on the outside of the third cylindrical section (207), and the second O-ring (5) is placed in the second annular O-ring grooves (205).

10. The multi-redundant high-voltage electric explosion valve according to claim 1, characterized in that: The bevel angle of the bevel cut (702) is 30° to 60°.

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