CN108662173A - A kind of valve for connecting shock tube low pressure stage and vacuum pump - Google Patents
A kind of valve for connecting shock tube low pressure stage and vacuum pump Download PDFInfo
- Publication number
- CN108662173A CN108662173A CN201810709820.6A CN201810709820A CN108662173A CN 108662173 A CN108662173 A CN 108662173A CN 201810709820 A CN201810709820 A CN 201810709820A CN 108662173 A CN108662173 A CN 108662173A
- Authority
- CN
- China
- Prior art keywords
- valve
- shock tube
- valve body
- valve head
- vacuum pump
- 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.)
- Granted
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0218—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with only one sealing face
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/312—Line blinds
Abstract
The present invention relates to a kind of valves for connecting shock tube low pressure stage and vacuum pump.The valve includes valve body, bellows (4), connecting seat (8), screw rod (9) and valve head (11)；The end (1) of valve body is connect with shock tube, and side pipe (3) is connect with vacuum pump；Valve head (11) is located in the end (1) of valve body, the end (1) of valve body is located in the side pipe of shock tube, when valve is closed, the "T"-shaped top lower face of valve head (11) is contacted with the end face of end (1), the "T"-shaped lower end of valve head (11) is fixedly connected by screw thread with bellows (4) one end, the other end of bellows (4) is fixedly connected with connecting seat (8), pressing sleeve (7) is fixed in the centre bore of connecting seat (8), one end of screw rod (9) is fixedly connected by screw thread with pressing sleeve (7), the middle part of screw rod (9) is to screw to connect with rear joint (5) and pressure cap (6).
Description
Technical field
The invention belongs to shock tube valve technology fields, and in particular to one kind is for connecting shock tube low pressure stage and vacuum pump
Valve.
Background technology
Shock tube is the experiment that the one-dimensional uniform non-isentropic Compression of thermal insulation is carried out by incident fundamental wave and reflection dfundamental-harmonic pair medium
Equipment.Shock tube is simple in structure, easy to use and cheap, can provide the experiment parameter to have a wide reach, therefore obtains wide
General application.Such as all widely make in the research of aerodynamics, other physical, chemical kinetics and aero-acoustics
Use shock tube.Recently, shock tube starts to play a role in the research of gas laser, environmental science and energy science again.It is full
The development need of sufficient guided missile, nuclear weapon etc. has developed diversified shock tube, and produces such as shock tunnel (see wind
Hole) etc. various news experimental provision.
The valve used on major part shock tube at present is taken over by being punched on shock tube, is connected using taking over
Then common valve is connect with vacuum pump again.Such conventional method drawback clearly, first, if welding internal diameter it is larger
Connecting tube, vacuumize the time used although can shorten, formed since its excessive pipe nozzle can influence shock wave
Stability in journey causes experimental results error larger, the final effect for influencing experiment；And if be welded to connect bore mistake
Small, although smaller on the formation of shock wave influence, since take over internal diameter is small, low pressure stage vacuumizes before dramatically increasing experiment
Time, hence it is evident that increase the experiment time used.
Invention content
The object of the present invention is to provide a kind of valves for connecting shock tube low pressure stage and vacuum pump, solve tradition connection
Method exists and influences fundamental wave and form stability and the longer technical problem of experimental period, have leakproofness is good, experiment influence it is non-
The advantages of high-fidelities such as often small.
The technical scheme is that a kind of for connect shock tube low pressure stage and the valve of vacuum pump to include valve body, wave
Line pipe, rear joint, pressure cap, pressing sleeve, connecting seat, screw rod and valve head；Valve body is made of end, supervisor and other pipe three parts, valve body
To be "T"-shaped, the both ends on "T"-shaped top are respectively end and supervisor, and "T"-shaped lower part is other pipe, and end is connect with shock tube, side pipe
It is connect with vacuum pump；Valve head is " T " shape structure, and valve head is located in the end of valve body, and the end of valve body is located at the side pipe of shock tube
Interior, when valve is closed, the "T"-shaped top lower face of valve head is contacted with the end face of end, the "T"-shaped lower end of valve head
It is inserted into the centre bore of bellows one end, and the "T"-shaped lower end of valve head is fixedly connected by screw thread with bellows one end, bellows
The other end is fixedly connected with connecting seat, and pressing sleeve is fixed in the centre bore of connecting seat, and one end of screw rod is solid by screw thread and pressing sleeve
Fixed connection, rear joint are bolted on pressure cap inner surface, and the flange of pressure cap is fixed in the supervisor end of valve body, screw rod
Middle part and rear joint and pressure cap be to screw to connect, the other end end of screw rod is fixedly connected with handwheel.
The "T"-shaped top of the valve head and "T"-shaped lower weld structure, the "T"-shaped top of wherein valve head is from shock tube
Supervisor's tube wall cut along supervisor's intersection of valve body end and shock tube.
The invention has the advantages that compared with prior art, the present invention is by regarding shock tube cutting tip as valve
Valve head, can with shock wave inside pipe wall it is extraordinary coincide, solve conventional valves shadow caused by fundamental wave forming process
The drawback rung and experimental period may be caused long, it is simple in structure, it is easy to operate.
Description of the drawings
Fig. 1 is a kind of assembling structure schematic diagram for connecting the valve of shock tube low pressure stage and vacuum pump of the present invention；
Fig. 2 is a kind of structural schematic diagram for connecting the valve of shock tube low pressure stage and vacuum pump of the present invention；
Fig. 3 is the structural schematic diagram of valve head in the present invention；
Fig. 4 is the left view of Fig. 3.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
As depicted in figs. 1 and 2, a kind of valve for connecting shock tube low pressure stage and vacuum pump of the present invention include valve body,
Bellows 4, rear joint 5, pressure cap 6, pressing sleeve 7, connecting seat 8, screw rod 9 and valve head 11.Valve body is by end 1, supervisor 2 and other pipe 3 three
Part is constituted, and valve body is "T"-shaped, and the both ends on "T"-shaped top are respectively end 1 and supervisor 2, and "T"-shaped lower part is other pipe 3.End 1
It is connect with shock tube, other pipe 3 is connect with vacuum pump.The material of all parts is all made of 304 stainless steels.
As shown in Figure 3 and Figure 4, valve head 11 is "T"-shaped welding structure, and "T"-shaped top constitutes valve with "T"-shaped lower weld
First 11, the "T"-shaped top of wherein valve head is to be cut from supervisor's tube wall of shock tube along supervisor's intersection of valve body end and shock tube
It chips away, i.e., the "T"-shaped end outline shape of valve head is the intersection shape of valve body end and shock tube.Valve head 11 is located at valve body
End 1 in, when valve is closed, the "T"-shaped top lower face of valve head 11 is contacted with the end face of end 1.Valve body
End 1 be located in the side pipe of shock tube, and the side pipe flange of the flange of end 1 and shock tube is bolted to connection, valve
The "T"-shaped end of head and supervisor's tube wall of shock tube coordinate, and supervisor's axis of shock tube is vertical with valve axis.Valve head passes through profit
Use supervisor's tube wall cutting tip of shock tube as valve head end, solving traditional large diameter valve well influences to form shock wave
The problem of stability, solves the technical issues of small internal diameter valve of tradition can obviously increase experimental period.Valve head 11 it is "T"-shaped under
End is inserted into 4 one end centre bore of bellows, and is fixedly connected with 4 one end of bellows by screw thread, the other end of bellows 4 and company
Joint chair 8 is fixedly connected.Pressing sleeve 7 is fixed in the centre bore of connecting seat 8, and one end of screw rod 9 is fixed by screw thread and pressing sleeve 7 to be connected
It connects.Rear joint 5 is bolted on 6 inner surface of pressure cap, and the flange of pressure cap 6 is fixed in 2 end of supervisor of valve body.Screw rod
9 other end stretches out the centre bore of the centre bore and pressure cap 6 of rear joint 5, and the middle part of screw rod 9 and rear joint 5 and pressure cap 6 are rotation
Close connection.The other end end of screw rod 9 is fixedly connected with handwheel 10.
The course of work of the present invention is, as shown in Fig. 2, when shock tube needs to vacuumize, handwheel 10 to be rotated clockwise, valve
First 11 in the case where screw rod 9, bellows 4 act on successively, valve head 11 are promoted in shock wave pipeline, at this time the "T"-shaped upper subordinate of valve head 11
The end face of end face and end 1 is detached from, i.e., valve is opened, and is then opened vacuum pump and is vacuumized；When vacuum reaches requirement of experiment
When, rotating handle 10 counterclockwise, valve head 11 moves downward, until the end face of the "T"-shaped top lower face and end 1 of valve head 11 connects
It touches, at this point, supervisor's tube wall of valve head end and shock tube coincide, finally closes vacuum pump, stop vacuumizing.
In summary：Although an embodiment of the present invention has been shown and described, for those of ordinary skill in the art
For, it is possible to understand that a variety of to the progress of these embodiments can change without departing from the principles and spirit of the present invention,
Modification, replacement and modification, the scope of the present invention is defined by the appended.
Claims (2)
1. a kind of valve for connecting shock tube low pressure stage and vacuum pump, it is characterized in that：The valve includes valve body, bellows
(4), rear joint (5), pressure cap (6), pressing sleeve (7), connecting seat (8), screw rod (9) and valve head (11)；Valve body is by end (1), supervisor
(2) it is constituted with other pipe (3) three parts, valve body is "T"-shaped, and the both ends on "T"-shaped top are respectively end (1) and supervisor (2), " T "
Shape lower part is other pipe (3), and end (1) is connect with shock tube, and side pipe (3) is connect with vacuum pump；Valve head (11) is " T " shape structure,
Valve head (11) is located in the end (1) of valve body, and the end (1) of valve body is located in the side pipe of shock tube, and shape is closed when valve is in
When state, the "T"-shaped top lower face of valve head (11) is contacted with the end face of end (1), and ripple is inserted into the "T"-shaped lower end of valve head (11)
It manages in the centre bore of (4) one end, and the "T"-shaped lower end of valve head (11) is fixedly connected by screw thread with bellows (4) one end, bellows
(4) the other end is fixedly connected with connecting seat (8), and pressing sleeve (7) is fixed in the centre bore of connecting seat (8), one end of screw rod (9)
Be fixedly connected with pressing sleeve (7) by screw thread, rear joint (5) is bolted on pressure cap (6) inner surface, pressure cap (6) it is convex
Edge is fixed in supervisor (2) end of valve body, and middle part and the rear joint (5) and pressure cap (6) of screw rod (9) are to screw to connect, screw rod
(9) other end end is fixedly connected with handwheel (10).
2. a kind of valve for connecting shock tube low pressure stage and vacuum pump described in accordance with the claim 1, it is characterised in that：Institute
The "T"-shaped top of valve head (11) and "T"-shaped lower weld structure are stated, the "T"-shaped top of wherein valve head is the supervisor from shock tube
Tube wall is cut along supervisor's intersection of valve body end and shock tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810709820.6A CN108662173B (en) | 2018-07-02 | 2018-07-02 | It is a kind of for connecting the valve of shock tube low pressure stage and vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810709820.6A CN108662173B (en) | 2018-07-02 | 2018-07-02 | It is a kind of for connecting the valve of shock tube low pressure stage and vacuum pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108662173A true CN108662173A (en) | 2018-10-16 |
| CN108662173B CN108662173B (en) | 2019-08-23 |
Family
ID=63773345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810709820.6A Active CN108662173B (en) | 2018-07-02 | 2018-07-02 | It is a kind of for connecting the valve of shock tube low pressure stage and vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108662173B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827738A (en) * | 2019-04-10 | 2019-05-31 | 王春晖 | A kind of shock tube rupture of diaphragm device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0843248A (en) * | 1994-07-28 | 1996-02-16 | Hitachi Ltd | Supersonic wind tunnel |
| JPH08178092A (en) * | 1994-09-13 | 1996-07-12 | Aero Systems Eng Inc | Piston release valve for free piston impulse pipe/tunnel |
| CN1783690A (en) * | 2004-12-02 | 2006-06-07 | 中国科学院电工研究所 | Mixed pulse power supply |
| CN202275043U (en) * | 2011-10-20 | 2012-06-13 | 上海应用技术学院 | Multifunctional test device for explosion and suppressing explosion |
| RU166794U1 (en) * | 2016-07-25 | 2016-12-10 | Федеральное государственное бюджетное учреждение науки Институт проблем механики им. А.Ю. Ишлинского Российской академии наук (ИПМех РАН) | HYPERSONIC AERODYNAMIC SHOCK TUBE |
| CN106840582A (en) * | 2016-12-23 | 2017-06-13 | 中国航天空气动力技术研究院 | A kind of impulse wind tunnel operation control system and impulse wind tunnel progress control method |
-
2018
- 2018-07-02 CN CN201810709820.6A patent/CN108662173B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0843248A (en) * | 1994-07-28 | 1996-02-16 | Hitachi Ltd | Supersonic wind tunnel |
| JPH08178092A (en) * | 1994-09-13 | 1996-07-12 | Aero Systems Eng Inc | Piston release valve for free piston impulse pipe/tunnel |
| CN1783690A (en) * | 2004-12-02 | 2006-06-07 | 中国科学院电工研究所 | Mixed pulse power supply |
| CN202275043U (en) * | 2011-10-20 | 2012-06-13 | 上海应用技术学院 | Multifunctional test device for explosion and suppressing explosion |
| RU166794U1 (en) * | 2016-07-25 | 2016-12-10 | Федеральное государственное бюджетное учреждение науки Институт проблем механики им. А.Ю. Ишлинского Российской академии наук (ИПМех РАН) | HYPERSONIC AERODYNAMIC SHOCK TUBE |
| CN106840582A (en) * | 2016-12-23 | 2017-06-13 | 中国航天空气动力技术研究院 | A kind of impulse wind tunnel operation control system and impulse wind tunnel progress control method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827738A (en) * | 2019-04-10 | 2019-05-31 | 王春晖 | A kind of shock tube rupture of diaphragm device |
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| Publication number | Publication date |
|---|---|
| CN108662173B (en) | 2019-08-23 |
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