CN203463675U - Pneumatic cage type double-seat valve - Google Patents
Pneumatic cage type double-seat valve Download PDFInfo
- Publication number
- CN203463675U CN203463675U CN201320457038.2U CN201320457038U CN203463675U CN 203463675 U CN203463675 U CN 203463675U CN 201320457038 U CN201320457038 U CN 201320457038U CN 203463675 U CN203463675 U CN 203463675U
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- valve
- fluid
- pneumatic
- rod
- gap
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Abstract
The utility model provides a pneumatic cage type double-seat valve. The valve comprises a valve body, a valve cavity is formed in the valve body, a fluid inlet and a fluid outlet are formed in the two sides of the valve body and are communicated with the valve cavity to form a flow channel, an upper valve seat and a lower valve seat which are separated mutually are arranged between the fluid inlet and the fluid outlet in the flow channel, an upper valve element and a lower valve element capable of moving vertically to seal and be separated from the upper valve seat and the lower valve seat respectively are arranged in the valve cavity, a valve rod penetrates the upper valve element to be connected with the lower valve element, a valve bonnet is sleeved on the valve rod, and a location index bar for indicating the fluid flow is arranged on the valve rod. The location index bar for indicating the fluid flow is arranged on the valve rod and can be adjusted in real time, so that the whole reliability is improved. The whole regulation valve is simple in structure, small in size, easy to manufacture and assemble, low in cost and capable of being used conveniently by users and prolonging the product service life.
Description
Technical field
The utility model relates to modulating valve, relates in particular to a kind of pneumatic cage double seated valve.
Background technique
Modulating valve, has another name called control valve, in industrial automation process control field, by accepting the control signal of regulation unit output, removes to change the final control unit of the process parameters such as rate-of flow, pressure, temperature, liquid level by power operation.In the higher control system of automaticity, modulating valve is usually used as the terminal actuating device of automatic regulating system, reception control signal according to the desired direction of control signal and size, by changing spool stroke, change the resistance system of valve, reach the object of adjust flux, the action sensitivity direct relation of modulating valve the quality of regulating system.Modulating valve often uses under hyperbaric environment, its compact structure. High power output. can be used for controlling the fluid of various different pressures and temperature.According to on-the-spot actual count, have the fault of 70% left and right to go out self-regulating valve, so the safe operation of modulating valve is especially important in regular maintenance.
Cage double seated valve is a kind of modulating valve of pressure balance type, and droop loss is little, and flow is large, and adjustable extent is wide, and rating curve precision is high, and dynamic stability is good, and noisy sound is low, cavitation corrosion, the High Pressure Difference fluid of suitable control high temperature low temperature.But current cage double seated valve still can not reach desirable effect for fluid flow size.
Model utility content
Technical problem to be solved in the utility model is exactly for current cage double seated valve above shortcomings, provides a kind of and can conveniently show fluid flow size the pneumatic cage double seated valve that can regulate in real time, for solving the problems of the prior art.
For achieving the above object and other relevant objects, the utility model provides a kind of pneumatic cage double seated valve, comprise valve body, in valve body, be provided with valve pocket, valve body both sides are provided with fluid input and fluid output, described fluid input, fluid output and valve pocket are connected and are formed runner, between described runner inner fluid entrance and fluid output, be provided with upper valve base and the lower valve base of space, in described valve pocket, be provided with the upper valve core that can move up and down and seal respectively and depart from upper valve base and lower valve base, lower valve core, one valve rod is connected with lower valve core through upper valve core, on described valve rod, be arranged with valve gap, valve rod is connected with a pneumatic mechanism through valve gap, between valve gap and valve rod, through gland packing element, be tightly connected, valve gap is installed on valve body, described valve rod is provided with one in order to indicate the positioning mark pole of fluid flow size.
Further, be connected with a support on described pneumatic mechanism, described support comprises two holding limbs, and described two holding limbs and valve gap are connected and fixed.
Further, wherein a holding limb is provided with the direction board of corresponding positioning mark pole.
Further, described runner is S shape runner.
Further, described valve body and valve cover chamber are provided with sawtooth gasket seal.
By above technological scheme, the pneumatic cage double seated valve of the utility model is with ovable valve stem by pneumatic mechanism, two spools is moved up and down simultaneously and reach open and close with respective valve seat is closely sealed.Positioning mark pole is set on valve rod in order to show valve rod travel, and then indication fluid flow size, and can regulate in real time, global reliability improved.Whole apparatus structure is compact, and High power output is manufactured assembling easily, and cost is low, is user-friendly to, and increases life of product.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model preferred embodiment.
Element numbers explanation:
1 valve body
11 fluid inputs
12 fluid outputs
21 upper valve bases
22 lower valve bases
31 upper valve cores
32 lower valve cores
4 valve rods
5 valve gaps
6 pneumatic mechanisms
61 holding limbs
7 gland packing elements
8 positioning mark poles
9 direction boards
10 sawtooth gasket seals
Embodiment
By particular specific embodiment, mode of execution of the present utility model is described below, person skilled in the art scholar can understand other advantages of the present utility model and effect easily by the disclosed content of this specification.
Refer to Fig. 1.Notice, appended graphic the illustrated structure of this specification, ratio, size etc., equal contents in order to coordinate specification to disclose only, for person skilled in the art scholar, understand and read, not in order to limit the enforceable qualifications of the utility model, therefore the technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under the effect that the utility model can produce and the object that can reach, all should still drop on the technology contents that the utility model discloses and obtain in the scope that can contain.Simultaneously, in this specification, quote as " on ", the term of D score, " left side ", " right side ", " centre " and " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under without essence change technology contents, when being also considered as the enforceable category of the utility model.
Consult shown in Fig. 1, it is the structural representation of a kind of pneumatic cage double seated valve of the utility model preferred embodiment, comprise valve body 1, in valve body 1, be provided with valve pocket, runner is S shape runner, valve body both sides are provided with fluid input 11 and fluid output 12, fluid input 11, fluid output 12 is connected and is formed runner with valve pocket, between runner inner fluid entrance 11 and fluid output 12, be provided with upper valve base 21 and the lower valve base 22 of space, in valve pocket, being provided with to move up and down seals respectively and departs from the upper valve core 31 of upper valve base 21 and lower valve base 22, lower valve core 32, one valve rod 4 is connected with lower valve core 32 through upper valve core 31, on valve rod 4, be arranged with valve gap 5, valve rod 4 is connected with a pneumatic mechanism 6 through valve gap 5, between valve gap 5 and valve rod 4, through gland packing element 7, be tightly connected, valve gap 5 is installed on valve body 1, valve rod 4 is provided with one in order to indicate the positioning mark pole 8 of fluid flow size.On pneumatic mechanism 6, be connected with a support, support comprises that 61, two holding limbs of two holding limbs 61 and valve gap 5 are connected and fixed.Wherein a holding limb is provided with the direction board 9 of corresponding positioning mark pole.During use, by pneumatic mechanism 6, be with ovable valve stem 4, spool 3 moved up and down and reach open and close with valve seat 2 is closely sealed.By the positioning mark pole 8 arranging on valve rod 4, show valve rod 4 strokes, and then indication fluid flow size, to regulate in real time fluid flow, improved global reliability.At valve body 1 and 4 of valve gaps, be provided with sawtooth gasket seal 10 in order to sealing.
In sum, the utility model is by positioning mark pole being set on valve rod in order to show valve rod travel, and then indication fluid flow size, and can regulate in real time, has improved global reliability.Whole apparatus structure is compact, and High power output is manufactured assembling easily, and cost is low, is user-friendly to, and increases life of product.So the utility model has effectively overcome various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all can, under spirit of the present utility model and category, modify or change above-described embodiment.Therefore, have in technical field under such as and conventionally know that the knowledgeable modifies or changes not departing from all equivalences that complete under spirit that the utility model discloses and technological thought, must be contained by claim of the present utility model.
Claims (5)
1. a pneumatic cage double seated valve, comprise valve body (1), in valve body, (1) is provided with valve pocket, valve body both sides are provided with fluid input (11) and fluid output (12), described fluid input (11), fluid output (12) is connected and is formed runner with valve pocket, between described runner inner fluid entrance (11) and fluid output (12), be provided with upper valve base (21) and the lower valve base (22) of space, in described valve pocket, being provided with to move up and down seals respectively and departs from the upper valve core (31) of upper valve base (21) and lower valve base (22), lower valve core (32), one valve rod (4) is connected with lower valve core (32) through upper valve core (31), it is characterized in that, on described valve rod (4), be arranged with valve gap (5), valve rod (4) is connected with a pneumatic mechanism (6) through valve gap (5), between valve gap (5) and valve rod (4), through gland packing element (7), be tightly connected, valve gap (5) is installed on valve body (1), described valve rod (4) is provided with one in order to indicate the positioning mark pole (8) of fluid flow size.
2. pneumatic cage double seated valve according to claim 1, is characterized in that, described pneumatic mechanism is connected with a support on (6), and described support comprises two holding limbs (61), and described two holding limbs and valve gap (5) are connected and fixed.
3. pneumatic cage double seated valve according to claim 2, is characterized in that, wherein a holding limb is provided with the direction board (9) of corresponding positioning mark pole (8).
4. pneumatic cage double seated valve according to claim 1, is characterized in that, described runner is S shape runner.
5. pneumatic cage double seated valve according to claim 1, is characterized in that, between described valve body (1) and valve gap (5), is provided with sawtooth gasket seal (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320457038.2U CN203463675U (en) | 2013-07-29 | 2013-07-29 | Pneumatic cage type double-seat valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320457038.2U CN203463675U (en) | 2013-07-29 | 2013-07-29 | Pneumatic cage type double-seat valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203463675U true CN203463675U (en) | 2014-03-05 |
Family
ID=50176042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320457038.2U Expired - Fee Related CN203463675U (en) | 2013-07-29 | 2013-07-29 | Pneumatic cage type double-seat valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203463675U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351531A (en) * | 2015-10-12 | 2016-02-24 | 罗普阀业（宜兴）有限公司 | Pneumatic straight-stroke sleeve control valve |
-
2013
- 2013-07-29 CN CN201320457038.2U patent/CN203463675U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351531A (en) * | 2015-10-12 | 2016-02-24 | 罗普阀业（宜兴）有限公司 | Pneumatic straight-stroke sleeve control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Hantao Inventor before: Zhang Hao |
|
| COR | Change of bibliographic data | ||
| 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: 20140305 Termination date: 20210729 |