CN202790657U - Ball valve special for nitrogen-oxygen - Google Patents
Ball valve special for nitrogen-oxygen Download PDFInfo
- Publication number
- CN202790657U CN202790657U CN 201220257577 CN201220257577U CN202790657U CN 202790657 U CN202790657 U CN 202790657U CN 201220257577 CN201220257577 CN 201220257577 CN 201220257577 U CN201220257577 U CN 201220257577U CN 202790657 U CN202790657 U CN 202790657U
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- Prior art keywords
- valve
- valve body
- control valve
- nitrogen
- pipeline
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- Expired - Fee Related
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Abstract
The utility model relates to a ball valve special for nitrogen-oxygen. The ball valve special for the nitrogen-oxygen comprises a main valve body, an auxiliary valve body, a valve seat supporting ring and a valve core which is matched with the valve seat and plays a role in switching action. The ball valve special for the nitrogen-oxygen is characterized in that spring chambers are arranged between the valve seats and the valve seat supporting ring, springs are arranged inside the spring chambers and used for supporting the valve seats, pore channels are formed in access channel walls of the valve seats and connected with control valves through channels, a channel is connected through the control valves and the communicated with valve core cavities, and another channel is connected through the control valves and then communicated with the spring chambers. The ball valve special for the nitrogen-oxygen has the advantages of being capable of providing the special ball valve with nitrogen-oxygen medium witch need switching on and off quickly, being suitable for medium with other medium which need switching on and off quickly, reducing friction and abrasion of a main shaft, and improving stability, reliability and flexibility of the ball valve based on an original ball valve.
Description
Technical field
The utility model belongs to a kind of spherical valve core valving, and this ball valve relates to the hazardous gas medium and requires the shut-off means of snap switch and also be suitable for the ball valve that other medium needs the medium of snap switch in definite saying.
Background technique
In the industry of nitrogen oxygen medium, the equipment that uses ball valve is arranged generally; In the existing ball-cock device, the valve seat bracing ring that includes main valve body and auxiliary valve body, valve seat and support valve seat, and and valve seat match and close the spool of on-off action, but, for large bore valves (〉=DN200) directly use air cylinder driven, the friction torque of valve seat and ball core and pipe medium pressure are to the active force of ball core, need relatively large output torque, Large-scale Reciprocating actuator is because volume of cylinder is larger, to the cylinder charge time length can not satisfy the valve quick acting, can not guarantee requirement switching time of valve.
Therefore, be necessary to improve the problem that solution must not rapid switching valve for above problem.
The model utility content
The purpose of this utility model just provides a kind of nitrogen oxygen ball-valve dedicated, solves the ball-valve dedicated that the nitrogen oxygen medium needs snap switch, also is suitable for simultaneously the medium that other medium needs snap switch.
A kind of nitrogen oxygen ball-valve dedicated of the present utility model, comprise main valve body, auxiliary valve body, valve seat and valve seat bracing ring and and valve seat cooperated the spool of on-off action, it is characterized in that: between described valve body and valve seat bracing ring, also be provided with spring housing, be furnished with spring in the described spring housing, spring supporting valve seat, access way wall at described valve body offers the duct, described duct is connected with control valve by pipe, pipeline communicates with spool chamber after control valve connects, and another pipeline is connected with spring housing after control valve connects.By being set, special-purpose device can close fully in the situation at ball valve, seating spring is in by the situation of precompressed, give valve seat bracing ring, pressure of valve seat, seal valve seat and ball core are fitted tightly, realize the sealing between valve seat and the spheroid, have in the medium situation since pressure medium to act on the larger then sealing of the pressure of medium on the valve seat bearing ring tightr.Realize at last blocking between valve inlet and the outlet, the full symmetric structure is adopted in ball core both sides, and realizes two way sealed; Valve seat has broken away from the ball core when valve needs opening and closing, reaches ball core and valve seat fully without friction.Remove opening in 0.5 second in a flash valve seat, moment obtains medium behind the valve, makes main shaft bear monolateral pressure and greatly reduces.
Further, link to each other with the spring housing of right valve barrel with the pipeline that is arranged on control valve I by the first end of T joint after pipeline connects in the duct that the conduit wall of described main valve body is offered, communicate with spool chamber after the other end is connected with control valve III.After being connected by pipeline, medium can be undertaken spool chamber carries out fully and makes it not play friction with valve seat in the process of cutting out or opening to the effect that spool applies buoyancy by pipeline, and the gas that leads to simultaneously spring housing can be to power of valve seat, auxiliary seal.
Further, first end is connected with the three-way pipeline that is arranged between control valve I and the spring housing duct on the described auxiliary valve body conduit wall through T joint after control valve II connects, and the other end is connected with spring housing on the left valve barrel.Allow control valve I communicate with spring housing on the major-minor valve body by pipeline, can apply simultaneously the effect of gas pressure to spring housing.
Further, describedly on duct on the auxiliary valve body and pipeline that control valve II is connected, one-way valve is installed also.The effect of one-way valve is exactly that the gas of controlling through control valve I can not flow to the duct that arranges on the auxiliary valve body, and assurance gas is exerted pressure to spring housing.
Further, described control valve I, control valve II, control valve III all are subjected to actuating mechanism controls by circuit.Can control simply and easily gas by operation and whether spool chamber and spring housing be applied gas pressure.
Further, between described main valve body, auxiliary valve body and valve seat, also be provided with seal ring.Guarantee the sealing between valve body and the valve seat.
Beneficial effect
The beneficial effects of the utility model have just provided the ball-valve dedicated that the nitrogen oxygen medium needs snap switch, also be suitable for simultaneously the medium that other medium needs snap switch, reduced simultaneously the friction and wear of main shaft, make its basis at former ball valve improve its stability, reliability, flexibility.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of nitrogen oxygen ball-valve dedicated of the present utility model, comprise main valve body 1, auxiliary valve body 2, valve seat 4 and valve seat bracing ring 3 and and valve seat cooperated the spool 5 of on-off action, between main valve body 1, auxiliary valve body 2 and valve seat bracing ring 3, also be provided with spring housing, be furnished with spring in the described spring housing, spring supporting the valve seat bracing ring, access way wall at described valve body offers the duct, described duct is connected with control valve by pipe, one pipeline communicates with spool chamber after control valve connects, and another pipeline is connected with spring housing after control valve connects.
In duct 7 that the conduit wall of main valve body 1 is offered after pipeline connects by an end behind three-way pipe 15 joints with link to each other with the spring housing 13 of right valve barrel by pipeline after control valve I9 is connected, the other end is connected with control valve III10 afterwards and communicates with spool chamber 12.
In the duct 8 on auxiliary valve body 2 conduit walls after control valve II11 connects through three-way pipe 16 joints one end be arranged on the three-way pipeline 14 that control valve I9 links to each other with spring housing 12 and be connected; The other end is connected with spring housing on the auxiliary valve body 2.
On duct 8 on the auxiliary valve body 2 and pipeline that control valve II11 is connected, one-way valve 14 is installed also.Described control valve I9, control valve II11, control valve III10 all are subjected to actuating mechanism controls by circuit.
In the present embodiment, between main valve body, auxiliary valve body and valve seat, also be provided with seal ring.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (6)
1. nitrogen oxygen ball-valve dedicated, comprise main valve body, auxiliary valve body, valve seat and valve seat bracing ring and and valve seat cooperated the spool of on-off action, it is characterized in that: between described valve body and valve seat bracing ring, also be provided with spring housing, be furnished with spring in the described spring housing, spring supporting valve seat, access way wall at described valve body offers the duct, described duct is connected with control valve by pipe, pipeline communicates with spool chamber after control valve connects, and other has pipeline to be connected with spring housing after control valve connects.
2. nitrogen oxygen ball-valve dedicated according to claim 1, it is characterized in that: link to each other with the spring housing of right valve barrel with the pipeline that is arranged on control valve I by the first end of T joint after pipeline connects in the duct that the conduit wall of described main valve body is offered, communicate with spool chamber after the other end is connected with control valve III.
3. nitrogen oxygen ball-valve dedicated according to claim 2, it is characterized in that: first end is connected with the three-way pipeline that is arranged between control valve I and the spring housing duct on the described auxiliary valve body conduit wall through T joint after control valve II connects, and the other end is connected with spring housing on the auxiliary valve body.
4. nitrogen oxygen ball-valve dedicated according to claim 3 is characterized in that: on duct on the described auxiliary valve body and pipeline that control valve II is connected one-way valve is installed also.
5. nitrogen oxygen ball-valve dedicated according to claim 4, it is characterized in that: described control valve I, control valve II, control valve III all are subjected to actuating mechanism controls by circuit.
6. nitrogen oxygen ball-valve dedicated according to claim 5 is characterized in that: also be provided with seal ring between described main valve body, auxiliary valve body and valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220257577 CN202790657U (en) | 2012-05-27 | 2012-05-27 | Ball valve special for nitrogen-oxygen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220257577 CN202790657U (en) | 2012-05-27 | 2012-05-27 | Ball valve special for nitrogen-oxygen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202790657U true CN202790657U (en) | 2013-03-13 |
Family
ID=47817922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220257577 Expired - Fee Related CN202790657U (en) | 2012-05-27 | 2012-05-27 | Ball valve special for nitrogen-oxygen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202790657U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791511A (en) * | 2014-01-19 | 2015-07-22 | 盐城圣科球阀有限公司 | Novel external control sealing ball valve |
| CN108194654A (en) * | 2017-12-27 | 2018-06-22 | 西安航天远征流体控制股份有限公司 | A kind of high-precision low torque regulation ball valve |
-
2012
- 2012-05-27 CN CN 201220257577 patent/CN202790657U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791511A (en) * | 2014-01-19 | 2015-07-22 | 盐城圣科球阀有限公司 | Novel external control sealing ball valve |
| CN108194654A (en) * | 2017-12-27 | 2018-06-22 | 西安航天远征流体控制股份有限公司 | A kind of high-precision low torque regulation ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20190527 |