CN203571111U - Inlet and outlet dual-linkage switching valve - Google Patents
Inlet and outlet dual-linkage switching valve Download PDFInfo
- Publication number
- CN203571111U CN203571111U CN201320745429.4U CN201320745429U CN203571111U CN 203571111 U CN203571111 U CN 203571111U CN 201320745429 U CN201320745429 U CN 201320745429U CN 203571111 U CN203571111 U CN 203571111U
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- switching valve
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- import
- inlet
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- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 230000001360 synchronised effect Effects 0.000 claims abstract description 5
- 230000008676 import Effects 0.000 claims description 83
- 230000003993 interaction Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- DIWRORZWFLOCLC-UHFFFAOYSA-N Lorazepam Chemical compound C12=CC(Cl)=CC=C2NC(=O)C(O)N=C1C1=CC=CC=C1Cl DIWRORZWFLOCLC-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model relates to an inlet and outlet dual-linkage switching valve. The inlet and outlet dual-linkage switching valve comprises a pair of safety valves, an inlet switching valve and an outlet switching valve. The inlet switching valve is provided with an inlet pipe base with one inlet and two outlets, and the outlet switching valve is provided with an outlet pipe base with one outlet and two inlets. Inlets and outlets of the pair of safety valves are communicated with the two outlets of the inlet pipe base and the two inlets of the outlet pipe base. The inlet switching valve and the outlet switching valve are connected with an interlocking device for controlling synchronous linkage of the inlet switching valve and the outlet switching valve. The inlet switching valve is further provided with a valve base arranged on the two outlets of the inlet pipe base, a valve clack and a valve rod, the outlet switching valve is further provided with a valve base arranged on the two inlets of the outlet pipe base, a valve clack and a valve rod, the valve rods drive the valve clacks to open and close the two valve bases alternately, and elastic pieces are arranged in the connection positions of the valve clack and the valve rod of the inlet switching valve. According to the inlet and outlet dual-linkage switching valve, springs are additionally arranged between the valve clacks and the valve rods at the inlet ends of the switching valves, and therefore the problem of non-synchronization of travel caused by accumulated errors in the machining, assembly and chain transmission process is solved; the errors of travel between the two switching valves are adjusted; the two sealing ends of the inlet switching valve and the outlet switching valve can be synchronously sealed.
Description
Technical field
the utility model relates to valve, particularly relates to a kind of import and export Double-linkage switching valve.
Background technique
at present, close technology has duplex spring entirely to open two kinds, open type, pessimistic securit valve and switching type safety valve with importing and exporting Double-linkage switching valve.Wherein, Duplex safety valve is connected in parallel on by two Direct spring loaded safety valves on the Y-piece of same import and forms, and it is simple in structure, and function singleness lacks effective switching controls, gives to change safety valve and brought larger difficulty; And switching type safety valve is to have increased a COMM communication on the basis of Duplex safety valve, can make a safety valve job, another safety valve cuts out, and two safety valves can be switched to working state in turn.
switching type safety valve has been realized effective switching controls with respect to Duplex safety valve in inlet part, be very easy to maintenance and the replacing of safety valve, but run into the requirement of mounting process pipeline or safety valve installing space is limited to some extent, outlet conduit is also unique, and in the time of need to possessing switching function, be just difficult to meet specific requirement.
because being subject to the restriction of at present processing and assembly condition, guarantee to import and export switching valve two traveled distances completely with theoretical calculate precisely to coincide be relative difficult, this is also a problem that is perplexing for a long time domestic a lot of safety valve manufacturer.
Summary of the invention
the purpose of this utility model is to provide a kind of outlet Double-linkage switching valve.
for achieving the above object, the technical solution adopted in the utility model is:
a kind of import and export Double-linkage switching valve, comprise a pair of safety valve, import switching valve and outlet switching valve, described import switching valve has the import base of an import and two outlets, described outlet switching valve has the outlet base of an outlet and two imports, the import of a pair of described safety valve is connected with two outlets of described import base respectively, the outlet of a pair of described safety valve is connected with two entrances of described outlet base respectively, described import switching valve, outlet switching valve are connected with the interlock of controlling its synchronous interaction
described import switching valve/outlet switching valve also has the valve rod that is separately positioned on the valve seat of described two ingress of two outlet/outlet bases of import base, the flap matching with described valve seat and is connected with described flap, described valve rod drives described flap alternately the valve seat described in two to be opened and closed, and the described flap of import switching valve and the joint of valve rod are provided with elastic component.
preferably, described elastic component is spring.
preferably, between the outer circumferential face of described valve seat and described import base, be provided with O RunddichtringO.
preferably, described interlock comprises import switching valve handwheel and import switching valve sprocket wheel, and it is arranged on the valve rod of described import switching valve by Stem Mut; Also comprise outlet switching valve handwheel and outlet switching valve sprocket wheel, it is arranged on by Stem Mut on the valve rod of described outlet switching valve, and described import switching valve sprocket wheel, outlet switching valve sprocket wheel are in transmission connection mutually by chain.
preferably, between two outlets of described import base, be provided with connecting tube between two entrances of described outlet base, described connecting tube, upper corresponding two outlets, entrances were respectively arranged with equilibrium valve.
further preferably, the connecting tube between the equilibrium valve described in two is connected with blow-down pipe, on described blow-down pipe, is provided with atmospheric valve.
because technique scheme is used, the utility model compared with prior art has following advantages:
1, between the flap of switching valve entrance point and valve rod, set up spring, solve the stroke out of step conditions because causing because of cumulative error in processing and assembling and chain transmission process.
2, by theory, calculate and select suitable spring, utilize valve rod Compress Spring to regulate the journey error between two switching valves.
3, utilize spring, two sealed ends that can realize import/export switching valve seal simultaneously.
Accompanying drawing explanation
accompanying drawing 1 is structural representation of the present utility model;
accompanying drawing 2 is A-A cross-sectional schematic in accompanying drawing 1;
accompanying drawing 3 is B portion enlarged view in accompanying drawing 2.
wherein: 1, safety valve; 10, import; 2, import switching valve; 20, import base; 200, import; 201, outlet; 21, valve seat; 22, flap; 23, valve rod; 24, Stem Mut; 3, outlet switching valve; 30, outlet base; 4, spring; 50, O RunddichtringO; 60, connecting tube; 61, equilibrium valve; 62, blow-down pipe; 63, atmospheric valve; 70, import switching valve handwheel; 71, import switching valve sprocket wheel; 8, chain.
Embodiment
below in conjunction with drawings and Examples, the utility model is further described:
a kind of import and export Double-linkage switching valve as shown in Figure 1, 2, comprises a pair of safety valve 1, import switching valve 2 and outlet switching valve 3.Specifically:
as shown in Figure 3: the flap 22 of import switching valve 2 is provided with elastic component with the joint of valve rod 23, and wherein elastic component is specially spring 4, as belleville spring, cylindrically coiled spring all can.Entering, outlet switching valve 2, before 3 interlocks, first allow into, outlet switching valve 2, 3 all move to nearly import switching valve handwheel 70 ends, entering, outlet switching valve 2, in the situation that 3 nearly import switching valve handwheel 70 ends all seal, load onto chain, then rotate import switching valve handwheel 70 allows flap 22 move to away from import switching valve handwheel 70 ends simultaneously, no matter enter, outlet switching valve 2, the 3 arbitrary end blow-by away from import switching valve handwheel 70 ends, all can realize by Compress Spring 4 sealing at two ends, with this, realize the reliability simultaneously sealing between valve rod 23 and flap 22.
between the outer circumferential face of valve seat 21 and import base 20, be provided with O RunddichtringO 50, to meet its sealability under high pressure.
between two of import base 200 outlets 201, be provided with connecting tube 60 between two entrances of outlet base 30, on connecting tube 60, corresponding two outlets 201, entrances are respectively arranged with equilibrium valve 61; Connecting tube 60 between two equilibrium valves 61 is connected with blow-down pipe 62, is provided with atmospheric valve 63 on blow-down pipe 62.
specifically set forth below the working principle of lower the present embodiment:
initial stage, import switching valve 2/ outlet switching valve 3 switches in the same side, now only have this side safety valve 1 in running order, medium enters safety valve 1 by import base 20 entrances of import switching valve 2, when pressure is elevated to after the cracking pressure of safety valve 1, safety valve jumping up, medium is discharged medium by flow through outlet base 30 outlet of outlet switching valve 3 of the outlet end of safety valve 1, after the Reseating pressure of a safety valve of pipeline internal medium pressure lower than safety valve 1, safety valve cuts out again.
when switching, open the equilibrium valve 61 of import base 20/ outlet base 30 both sides, allow medium flow into the opposite side of switching valve, now rotate import switching valve handwheel 70 flap 22 of import switching valve 2/ outlet switching valve 3 is moved to the other end from one end, pass through interlock system, guaranteed that import switching valve 2/ outlet switching valve 3 switches simultaneously, now another safety valve 1 is in running order, close afterwards the equilibrium valve 61 of import base 20/ outlet base 30 active side, open atmospheric valve 63, by the medium emptying in non-working side safety valve 1.The working principle of this safety valve is the same with First, and the object that reaches safety relief and on-line maintenance, replacing safety valve with this, ensures that the safety of whole production system is normally moved.
above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection domain of the present utility model.
Claims (6)
1. import and export Double-linkage switching valve for one kind, comprise a pair of safety valve, import switching valve and outlet switching valve, described import switching valve has the import base of an import and two outlets, described outlet switching valve has the outlet base of an outlet and two imports, the import of a pair of described safety valve is connected with two outlets of described import base respectively, the outlet of a pair of described safety valve is connected with two entrances of described outlet base respectively, described import switching valve, outlet switching valve are connected with the interlock of controlling its synchronous interaction
Described import switching valve/outlet switching valve also has the valve rod that is separately positioned on the valve seat of described two ingress of two outlet/outlet bases of import base, the flap matching with described valve seat and is connected with described flap, described valve rod drives described flap alternately the valve seat described in two to be opened and closed, and it is characterized in that: the described flap of import switching valve and the joint of valve rod are provided with elastic component.
2. a kind of import and export Double-linkage switching valve according to claim 1, is characterized in that: described elastic component is spring.
3. a kind of import and export Double-linkage switching valve according to claim 1, is characterized in that: between the outer circumferential face of described valve seat and described import base, be provided with O RunddichtringO.
4. a kind of import and export Double-linkage switching valve according to claim 1, is characterized in that: described interlock comprises import switching valve handwheel and import switching valve sprocket wheel, and it is arranged on the valve rod of described import switching valve by Stem Mut; Also comprise outlet switching valve handwheel and outlet switching valve sprocket wheel, it is arranged on by Stem Mut on the valve rod of described outlet switching valve, and described import switching valve sprocket wheel, outlet switching valve sprocket wheel are in transmission connection mutually by chain.
5. a kind of import and export Double-linkage switching valve according to claim 1, it is characterized in that: between two outlets of described import base, be provided with connecting tube between two entrances of described outlet base, described connecting tube, upper corresponding two outlets, entrances were respectively arranged with equilibrium valve.
6. a kind of import and export Double-linkage switching valve according to claim 5, is characterized in that: the connecting tube between the equilibrium valve described in two is connected with blow-down pipe, on described blow-down pipe, is provided with atmospheric valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320745429.4U CN203571111U (en) | 2013-11-22 | 2013-11-22 | Inlet and outlet dual-linkage switching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320745429.4U CN203571111U (en) | 2013-11-22 | 2013-11-22 | Inlet and outlet dual-linkage switching valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203571111U true CN203571111U (en) | 2014-04-30 |
Family
ID=50538843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320745429.4U Expired - Lifetime CN203571111U (en) | 2013-11-22 | 2013-11-22 | Inlet and outlet dual-linkage switching valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203571111U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591334A (en) * | 2013-11-22 | 2014-02-19 | 吴江市东吴机械有限责任公司 | Inlet and outlet double linkage changeover valve |
-
2013
- 2013-11-22 CN CN201320745429.4U patent/CN203571111U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591334A (en) * | 2013-11-22 | 2014-02-19 | 吴江市东吴机械有限责任公司 | Inlet and outlet double linkage changeover valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |