CN209100715U

CN209100715U - A kind of space exhaust valve

Info

Publication number: CN209100715U
Application number: CN201821619018.XU
Authority: CN
Inventors: 胡泽华
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-10-06
Filing date: 2018-10-06
Publication date: 2019-07-12
Anticipated expiration: 2028-10-06

Abstract

The utility model relates to a kind of exhaust apparatus, a kind of especially space exhaust valve used in space-flight trajectory cabin, including orbital module and core valve, core valve is fixed by the bracket in orbital module, core valve works by using atmospheric pressure in cabin, it realizes that small strength opens big valve, mitigates spacefarer and go out cabin resistance.

Description

A kind of space exhaust valve

Technical field

The present invention relates to a kind of exhaust apparatus, especially a kind of space exhaust valve used in space-flight trajectory cabin.

Background technique

On September 25th, 2008, No. seven manned spaceships of divine boat smoothly go up to the air, and become another in China Aerospace career development history Seat milestone.

41 divide at September 27 days 16, and taikonaut Zhai Zhigang wears " flying apsaras " extravehicular space suit of China's development, open mind No. seven manned spaceship track cabin doors of boat, implement space extravehicular activity for the first time, and the wildernesses of space leaves the footprint of Chinese for the first time.

But during astronaut opens track cabin door, very painstakingly, in cabin pressure there are also when 0.2MPa, Astronaut opens hatch door by force, as a result 10 jin of its weight loss, and therefore, this orbital module gas bleeder valve is obviously not perfect.

Orbital module goes out hatch door, and we are calculated by the circular port of 80cm, and since the outer space is vacuum, pressure is also in cabin When 0.2MPa, whole resistance of opening is about 10 tons, it is envisaged that the difficulty of one seam of unlatching has much！

Summary of the invention

The technical problem to be solved by the present invention is to for above-mentioned state of the art and provide it is a kind of more efficiently and can A kind of space exhaust valve leaned on.

It is a kind of space exhaust valve that the present invention, which solves technical solution used by above-mentioned technical problem, it includes orbital module With core valve；The orbital module includes the linkage path coupled with return capsule and core valve support, and core valve is coupled by core valve support Onto orbital module；The core valve includes valve deck, valve seat and spool, imports compression bar between spool and valve deck and valve seat and obtains same Thus the heart and limit constitute a kind of space exhaust valve.

A kind of core valve that is mainly characterized by of space exhaust valve is placed in space capsule, realizes the direct behaviour by spacefarer Control.

Detailed description of the invention

Attached drawing 1 is a kind of overall structure cross-sectional view of space exhaust valve.

Specific embodiment

The invention will be further described with reference to the accompanying drawings:

Structure of the invention is as follows:

Referring to shown in attached drawing 1, a kind of space exhaust valve includes: orbital module and core valve, specifically by following component group At: orbital module 1, external connection channel 2, valve seat 3, valve deck 4, pressure cap 5, compression bar 6, spring 1, deflector hole 1, deflector hole 39, bullet Spring 2 10, sealing ring 3 11, sealing ring 4 12, deflector hole 2 13, spool 14, sealing ring 5 15, pin key 16, bracket 17, bolt 18, sealing ring 1 and sealing ring 2 20.

Wherein a kind of core valve of space exhaust valve is by valve seat 3, valve deck 4, pressure cap 5, compression bar 6, spring 1, deflector hole One 8, deflector hole 39, spring 2 10, sealing ring 3 11, sealing ring 4 12, deflector hole 2 13, spool 14, sealing ring 5 15, pin Key 16, bolt 18, sealing ring 1 and sealing ring 2 20 form, and core valve is fixed on bracket 17 by bolt 18 by valve seat 3.

Wherein external connection channel 2 and bracket 17 are disposed on a kind of orbital module 1 of space exhaust valve.

Wherein a kind of structure arrangement of the core valve of space exhaust valve is as follows:

Core valve is provided with deflector hole 39 based on valve seat 3 on valve seat 3, there are mainstream holes for 3 bottom of valve seat, and even with the external world It is logical；Plus after pressure cap 5 at the top of compression bar 6, it is successively inserted in spring 1 since lower part, then is inserted in valve deck 4 (valve deck 4 has first been placed in close 20) seal 1 and sealing ring 2, then are inserted in spring 2 10, then be inserted in spool 14 (spool 14 is first placed in sealing ring 3 11, close 15) seal 4 12 and sealing ring 5, then plug pin key 16, be finally placed in 3 centre bore of valve seat, then lock valve deck 4 in valve seat 3 Upper port on.

Since the shape of spool 14 is back taper, and moved down automatically under the action of the gravity of spool 14 and spring 2 10, Spool 14 is just stopped into stop bit, the base apertures composition piston seal of sealing ring 5 15 and valve seat 3 in the position of sealing ring 5 15 Structure can stop fluid to pass through at this time.

The effect of pin key 16 mainly prevents compression bar 6 from falling off and inner spool 14 easy to repair.

Working principle:

It is space pressure since the air pressure in orbital module 1 is greater than external, in this way, gas first enters valve seat by deflector hole 39 In 3, due to, by thering is sealing ring four and sealing ring 5 15 to seal up up and down, and being provided in spool 14 between spool 14 and valve seat 3 One hole, that is, deflector hole 2 13 up and down, the inner cavity of the hole connection valve seat 3 and the inside of orbital module 1, in this way, air-flow is with regard to along leading Discharge orifice 2 13 enters the reserved space between the top and valve deck 4 of spool 14, i.e. core valve working chamber, in compression bar 6 and spool 14 Between sealed up by sealing ring 3 11, sealed up between compression bar 6 and valve deck 4 by sealing ring 1 and sealing ring 2 20, compression bar 6 As soon as deflector hole 1 on is also sealed up by sealing ring 19 and sealing ring 2 20, in this way, air-flow is gradually filled with core valve working chamber, Until its pressure is identical as the pressure in orbital module 1, which acts on the top surface of spool 14 again, after and strengthen The downward sealing function of spool 14, in this way, whole device is at stable state

When astronaut needs extravehicular activity and needs to pressure release is carried out in orbital module 1, as long as pressing the pressure cap 5 of core valve, Spring 1 is shunk, and compression bar 6 moves down at random, one 8 moment of deflector hole on compression bar 6 and core valve working chamber connection, intracavitary previous accumulation Just quickly entered in the centre bore of compression bar 6 containing body of calming the anger, and be discharged outside orbital module 1 rapidly, due to being located at leading on spool 14 The flow of discharge orifice 2 13 is less than the flow of deflector hole 1, and ground gas has little time to the loss gas in core valve working chamber in orbital module 1 Body is supplemented, and the pressure in core valve working chamber is caused to reduce rapidly, and still in orbital module 1 at the bottom conical surface of spool 14 Gas pressure under, the bottom of such spool 14 and top are formed pressure difference, this pressure difference lifts rapidly spool 14 It rises, after spool 14 lifts, the mainstream channel of core valve has been turned on, in this way, the bulk gas in orbital module 1 is with regard to moment just by water conservancy diversion Hole 39 enters the mainstream channel of 3 lower part of valve seat, is discharged into space, realizes pressure release.

After pressure almost empties in orbital module 1, since whole device is in state of weightlessness, spool 14 is in spring 2 10 Under thrust, it is displaced downwardly to original position, such whole device is in sealing state again.

The advantage of doing so is that:

The pressure for thoroughly mitigating spacefarer's opened door, realizes Quick air-discharge.

In space, since ambient pressure tends to vacuum, because hatch door diameter is very big, even the pressure of fourth point all can in cabin It is converted to very high unlatching resistance, and under the booster action of cabin inner core valve, it, can will be straight by the reaction of 1 internal pressure of orbital module The very big valve of diameter is easily opened, when pressure in cabin is let out to desired pressure while being zero (such as inside and outside pressure difference), at this moment spacefarer Hatch door is opened again to go out, it is ery easy.

Claims

1. a kind of space exhaust valve, includes: orbital module (1) and core valve, the core valve is by valve seat (3), valve deck (4), pressure cap (5), compression bar (6), spring one (7), deflector hole one (8), deflector hole three (9), spring two (10), sealing ring three (11), sealing ring Four (12), deflector hole two (13), spool (14), sealing ring five (15), pin key (16), sealing ring one (19) and sealing ring two (20) Composition, characterized in that external connection channel (2) and bracket (17) are fixed on the orbital module (1), the core valve passes through bracket (17) It is fixed in orbital module (1) by bolt (18).

2. a kind of space exhaust valve according to claim 1, characterized in that the core valve be by based on valve seat (3), With compression bar (6) for axis, compression bar (6) elder generation's overhead pressure cap (5) is successively inserted in spring one (7), valve deck (4), set from compression bar (6) lower part Enter spring two (10), be inserted in spool (14), plug pin key (16), then is placed in valve seat (3) centre bore and forms, then by valve deck (4) lock is in the upper port of valve seat (3), and deflector hole three (9) is provided on valve seat (3), and there are mainstream holes for valve seat (3) bottom.

3. a kind of space exhaust valve according to claim 1, characterized in that the shape of spool (14) is back taper, spool (14) deflector hole two (13) is opened up in vivo, the bottom of spool (14) is equipped with sealing ring five (15), and sealing ring five (15) and valve The bottom outlet of seat (3) forms piston sealing structure.

4. a kind of space exhaust valve according to claim 1, characterized in that be equipped in described valve deck (4) internal void Sealing ring one (19) and sealing ring two (20).

5. a kind of space exhaust valve according to claim 1, characterized in that the working chamber of the core valve is built-in with spring Two (10).

6. a kind of space exhaust valve according to claim 1, characterized in that the compression bar (6) is located at pressure cap (5) and valve Spring one (7) is installed between lid (4).

7. a kind of space exhaust valve according to claim 1, characterized in that offered on the compression bar (6) of the core valve Deflector hole one (8) is disposed with pin key (16) in the bottom of compression bar (6).

8. a kind of space exhaust valve according to claim 1, characterized in that the core valve passes through bolt by valve seat (3) (18) bracket (17) are fixed to be then attached in orbital module (1).

9. a kind of space exhaust valve according to claim 1, characterized in that between the spool (14) and valve seat (3) It is realized and is sealed by sealing ring four (12), realized and sealed by sealing ring three (11) between the spool (14) and compression bar (6).