CN204739278U - Formula of relying on oneself pilot valve pressure regulating valve of control pressure -fired - Google Patents
Formula of relying on oneself pilot valve pressure regulating valve of control pressure -fired Download PDFInfo
- Publication number
- CN204739278U CN204739278U CN201520340722.1U CN201520340722U CN204739278U CN 204739278 U CN204739278 U CN 204739278U CN 201520340722 U CN201520340722 U CN 201520340722U CN 204739278 U CN204739278 U CN 204739278U
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- Prior art keywords
- valve
- pilot valve
- vice
- pilot
- auxiliary
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- Expired - Fee Related
Links
- 230000001105 regulatory effect Effects 0.000 title abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 6
- 230000008859 change Effects 0.000 abstract description 4
- 238000005538 encapsulation Methods 0.000 abstract 1
- 230000001276 controlling effect Effects 0.000 description 7
- 230000006837 decompression Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- Control Of Fluid Pressure (AREA)
Abstract
The utility model provides a formula of relying on oneself pilot valve pressure regulating valve of control pressure -fired, belongs to valve technical field. It includes valve body, disk seat, main valve core, valve rod, valve gap, actuating mechanism and pilot valve, the pilot valve including the fixed deputy valve body who sets up on actuating mechanism, deputy valve body in fixed set up vice disk seat, vice disk seat in alternate and to set up vice valve rod, vice valve rod top be connected with the pilot valve diaphragm in the pilot valve, vice valve rod bottom set up can with the vice case of vice disk seat complex. A foretell formula of relying on oneself pilot valve pressure regulating valve of control pressure -fired through pilot valve inner structure's change, reduces the weight that the diaphragm bore in the pilot valve, makes the weight that the diaphragm only bore regulating spring and adjusting screw to the flexibility that has improved the diaphragm up -and -down motion greatly, it is adjustable to have realized that tank deck feedback pressure -fired is put in the nitrogen encapsulation, has filled internal with conventional blank of relying on oneself formula pilot valve pressure regulating valve control pressure -fired.
Description
Technical field
The utility model belongs to valve technology field, is specifically related to a kind of self-powering type pilot valve pressure regulator valve controlling micro positive pressure.
Background technique
Self-powering type pilot valve pressure regulator valve, without the need to external energy (without the need to additional power source or source of the gas), utilizing by tune medium self-energy is power source, film room under too small valve body introduces actuator, thus control the position of valve core valve stem and small valve core, change pressure reduction and the flow at two ends, downstream pressure is stablized.Have and be active in one's movements, good airproof performance, the advantages such as pressure set-point fluctuation is little, are widely used in the automatic control of nitrogen seal device pressure-reduced and-regulated in various industry equipment.
In recent years, domestic valve industry develop rapidly, the product structure type of each valve producer emerges in an endless stream.But domestic existing self-powering type pilot valve pressure regulator valve, small valve core formal dress, pilot valve internal structure is heavy, and the self-powering type pilot valve pressure regulator valve of this structure cannot stablize nitrogen seal device tank deck pressure 0.5KPa and following requirement, affects the normal operation of industrial processes.
Model utility content
For prior art Problems existing, the purpose of this utility model is to design provides a kind of technological scheme controlling the self-powering type pilot valve pressure regulator valve of micro positive pressure.
Described a kind of self-powering type pilot valve pressure regulator valve controlling micro positive pressure, comprise valve body, valve seat, main valve plug, valve rod, valve gap, actuator and pilot valve, it is characterized in that described pilot valve comprises the auxiliary valve body be fixedly installed in actuator, auxiliary-seat is fixedly installed in described auxiliary valve body, intert in described auxiliary-seat and auxiliary valve rod is set, described auxiliary valve rod top is connected with the pilot valve diaphragm in pilot valve, arranges the auxiliary valve core that can coordinate with auxiliary-seat bottom described auxiliary valve rod.
Described a kind of self-powering type pilot valve pressure regulator valve controlling micro positive pressure, it is characterized in that described pilot valve diaphragm is equipped with Regulation spring, described Regulation spring top is equipped with adjustment seat and adjusting screw.
Above-mentioned a kind of self-powering type pilot valve pressure regulator valve controlling micro positive pressure, by the change of pilot valve internal structure, reduce the weight that pilot valve interior diaphragm bears, diaphragm is made only to bear the weight of Regulation spring and adjusting screw, thus substantially increase the flexibility that diaphragm moves up and down, achieve nitrogen seal device tank deck feedback micro positive pressure adjustable, fill up the blank that domestic use conventional self-powering type pilot valve pressure regulator valve controls micro positive pressure.
Accompanying drawing explanation
Fig. 1 is the utility model general assembly structural drawing;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is the utility model pilot valve sectional drawing.
In figure: 1-valve body, 2-valve seat, 3-main valve plug, 4-valve rod, 5-valve gap, 6-actuator, 7-auxiliary valve body, 8-auxiliary valve core, 9-pilot valve diaphragm, 10-Regulation spring, 11-adjusting screw, 12-auxiliary valve rod, 13-auxiliary-seat, 14-adjustment seat, 15-needle valve body, 16-needle-valve.
Embodiment
The utility model is further illustrated below in conjunction with Figure of description.
As shown in the figure, a kind of self-powering type pilot valve pressure regulator valve controlling micro positive pressure comprises valve body 1, valve seat 2, main valve plug 3, valve rod 4, valve gap 5, actuator 6 and pilot valve.Wherein pilot valve comprises the auxiliary valve body 7 be fixedly installed in actuator 6, auxiliary-seat 13 is fixedly installed in auxiliary valve body 7, intert in auxiliary-seat 13 and auxiliary valve rod 12 is set, auxiliary valve rod 12 top is connected with the pilot valve diaphragm 9 in pilot valve, arranges the auxiliary valve core 8 that can coordinate with auxiliary-seat 13 bottom auxiliary valve rod 12.Pilot valve diaphragm 9 in pilot valve is equipped with Regulation spring 10, and Regulation spring 10 top is equipped with adjustment seat 14 and adjusting screw 11.
During work, when medium flows to valve body 1 by the direction of arrow, auxiliary valve body 7 is entered into through adapter A, needle valve body 15 is entered again through pipeline B, eventually pass metering pin valve 16 and distribute to pipeline C and pipeline D, enter film room () and film room (two) of actuator 6 respectively, main valve plug 3 is opened by valve rod 4, the position of main valve plug 3 and the free area between main valve plug 3 and valve seat 2 determine rate-of flow, controlled downstream pressure (nitrogen seal device tank deck feedback pressure) is through pressure pipe F(annex) be sent on pilot valve diaphragm 9, and convert detent force at this.According to the size of Regulation spring in pilot valve 10 pretightening force, detent force adjustment main valve plug 3 position.The size of spring 10 pretightening force is adjusted by adjusting screw 11.When downstream pressure is greater than the set point of spring 10 pretightening force, Compress Spring, close auxiliary valve core 8, main valve plug 3 is closed in proportion according to pressure variety.When downstream pressure drops to lower than set point, then due to the reaction force that Regulation spring 10 produces, open auxiliary valve core 8, and drive main valve plug 3, valve opening degree is scaled up according to pressure variety, thus reaches the object of decompression, voltage stabilizing.
The utility model is by the change of pilot valve internal structure, i.e. auxiliary valve core 8 and auxiliary valve rod 12 structure, reduce the weight that pilot valve diaphragm 9 bears, pilot valve diaphragm 9 is made only to bear the weight of Regulation spring 10 and adjusting screw 11, thus substantially increase the flexibility that diaphragm moves up and down, achieve nitrogen seal device tank deck feedback micro positive pressure adjustable, fill up the blank that domestic use conventional self-powering type pilot valve pressure regulator valve controls micro positive pressure.
Shown in the above and figure is only preferred implementation of the present utility model.It should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from the utility model principle, can also make some modification and improvement, these also should be considered as belonging to protection domain of the present utility model.
Claims (2)
1. one kind controls the self-powering type pilot valve pressure regulator valve of micro positive pressure, comprise valve body (1), valve seat (2), main valve plug (3), valve rod (4), valve gap (5), actuator (6) and pilot valve, it is characterized in that described pilot valve comprises the auxiliary valve body (7) be fixedly installed in actuator (6), auxiliary-seat (13) is fixedly installed in described auxiliary valve body (7), intert in described auxiliary-seat (13) and auxiliary valve rod (12) is set, described auxiliary valve rod (12) top is connected with the pilot valve diaphragm (9) in pilot valve, described auxiliary valve rod (12) bottom arranges the auxiliary valve core (8) that can coordinate with auxiliary-seat (13).
2. a kind of self-powering type pilot valve pressure regulator valve controlling micro positive pressure as claimed in claim 1, it is characterized in that described pilot valve diaphragm (9) is equipped with Regulation spring (10), described Regulation spring (10) top is equipped with adjustment seat (14) and adjusting screw (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520340722.1U CN204739278U (en) | 2015-05-25 | 2015-05-25 | Formula of relying on oneself pilot valve pressure regulating valve of control pressure -fired |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520340722.1U CN204739278U (en) | 2015-05-25 | 2015-05-25 | Formula of relying on oneself pilot valve pressure regulating valve of control pressure -fired |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204739278U true CN204739278U (en) | 2015-11-04 |
Family
ID=54421015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520340722.1U Expired - Fee Related CN204739278U (en) | 2015-05-25 | 2015-05-25 | Formula of relying on oneself pilot valve pressure regulating valve of control pressure -fired |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204739278U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798368A (en) * | 2019-02-27 | 2019-05-24 | 苏州纽威阀门股份有限公司 | A kind of seperating range control valve |
| CN110345285A (en) * | 2019-08-01 | 2019-10-18 | 浙江汇正自控阀门有限公司 | A kind of pilot-operated type pressure-regulating valve |
| CN113757427A (en) * | 2021-07-28 | 2021-12-07 | 浙江永盛科技股份有限公司 | Zero-friction director pressure regulating valve and pressure regulating method |
| CN114233906A (en) * | 2022-01-11 | 2022-03-25 | 上海一核阀门股份有限公司 | Self-operated negative pressure regulating valve |
-
2015
- 2015-05-25 CN CN201520340722.1U patent/CN204739278U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798368A (en) * | 2019-02-27 | 2019-05-24 | 苏州纽威阀门股份有限公司 | A kind of seperating range control valve |
| CN109798368B (en) * | 2019-02-27 | 2023-08-29 | 苏州纽威阀门股份有限公司 | Part-way regulating valve |
| CN110345285A (en) * | 2019-08-01 | 2019-10-18 | 浙江汇正自控阀门有限公司 | A kind of pilot-operated type pressure-regulating valve |
| CN113757427A (en) * | 2021-07-28 | 2021-12-07 | 浙江永盛科技股份有限公司 | Zero-friction director pressure regulating valve and pressure regulating method |
| CN114233906A (en) * | 2022-01-11 | 2022-03-25 | 上海一核阀门股份有限公司 | Self-operated negative pressure regulating 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: 20151104 |