CN204083396U - A kind of ultra micro pressure lets out nitrogen modulating valve - Google Patents
A kind of ultra micro pressure lets out nitrogen modulating valve Download PDFInfo
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- CN204083396U CN204083396U CN201420488666.1U CN201420488666U CN204083396U CN 204083396 U CN204083396 U CN 204083396U CN 201420488666 U CN201420488666 U CN 201420488666U CN 204083396 U CN204083396 U CN 204083396U
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- guide sleeve
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- spool
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Abstract
A kind of ultra micro pressure lets out nitrogen modulating valve, belongs to valve technology field.It comprises valve body, valve gap, actuator, spool and valve rod, valve rod runs through and is arranged in valve body, valve gap and actuator, valve rod upper end is passed pallet and is fixedly connected with spring seat with after control diaphragm, valve body lower end is fixedly connected with spool, spool coordinates with the valve seat arranged in valve body, the first guide sleeve is fixedly installed between valve gap and valve body, first medium passage is provided with in first guide sleeve, the second guide sleeve is fixedly installed between actuator and valve gap, be provided with second medium passage in second guide sleeve, the first guide sleeve and the second guide sleeve are socketed with valve rod and coordinate.The utility model adopts no-arbitrary pricing design, and valve rod friction is little, is swift in response, and improves control accuracy; Adopt two guide sleeve to arrange, make valve rod work more stable; Adopt in guide sleeve and medium channel structure is set, make medium to directly act on actuator, improve and control sensitivity and precision.
Description
Technical field
The utility model belongs to valve technology field, is specifically related to a kind of ultra micro pressure and lets out nitrogen modulating valve.
Background technique
It is a kind of without the need to outside resources that nitrogen modulating valve is let out in minute-pressure, only utilizes and is adjusted the change of medium pressure itself to carry out the energy-saving modulating valve product regulated.It is comparatively complicated that nitrogen regulating valve structure is let out in existing minute-pressure, and by packing seal in valve rod and valve gap, medium can not directly act on actuator, and the resistance causing valve rod to be subject to like this is large, and actuator's reaction is sensitive not, reduces control accuracy.
Model utility content
For prior art Problems existing, the purpose of this utility model is to design provides a kind of ultra micro pressure to let out the technological scheme of nitrogen modulating valve.
Described a kind of ultra micro pressure lets out nitrogen modulating valve, comprise valve body, valve gap, actuator, spool and valve rod, described actuator comprises membrane cover, be arranged on the pallet in membrane cover, be arranged on the control diaphragm between pallet, spring seat and the adjustment disk with spring seat resilient engagement, described valve rod runs through and is arranged on valve body, in valve gap and actuator, described valve rod upper end is passed pallet and is fixedly connected with spring seat with after control diaphragm, described valve body lower end is fixedly connected with spool, described spool coordinates with the valve seat arranged in valve body, it is characterized in that being fixedly installed the first guide sleeve between described valve gap and valve body, first medium passage is provided with in the first described guide sleeve, the second guide sleeve is fixedly installed between described actuator and valve gap, second medium passage is provided with in the second described guide sleeve, the first described guide sleeve and the second guide sleeve are socketed with valve rod and coordinate, described valve body enter media end, the lower film room of valve gap inner chamber and actuator is communicated by the first medium passage that arranges and second medium passage.
Described a kind of ultra micro pressure lets out nitrogen modulating valve, it is characterized in that the control spring resilient engagement by arranging between described spring seat and adjustment disk.
Described a kind of ultra micro pressure lets out nitrogen modulating valve, it is characterized in that being provided with one group of stroke limit bar inside described membrane cover.
Described a kind of ultra micro pressure lets out nitrogen modulating valve, it is characterized in that described spool coordinates with valve seat from top to bottom.
Above-mentioned a kind of ultra micro pressure lets out nitrogen modulating valve, and structure is simple, reasonable in design, and adopt no-arbitrary pricing design, valve rod friction is little, is swift in response, and improves control accuracy; Adopt two guide sleeve to arrange, make valve rod work more stable; Adopt in guide sleeve and medium channel structure is set, make medium to directly act on actuator, improve and control sensitivity and precision.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-valve body; 2-spool; 3-valve seat; 4-first guide sleeve; 401-first medium passage; 5-membrane cover; 6-control spring; 7-adjustment disk; 8-spring seat; 9-Driving force ball bearing; 10-upper film chamber; Film room under 11-; 12-controls diaphragm; 13-pallet; 14-second guide sleeve; 1401-second medium passage; 15-stroke limit bar; 16-valve gap; 17-valve rod.
Embodiment
The utility model is further illustrated below in conjunction with Figure of description.
As shown in the figure, a kind of ultra micro pressure is let out nitrogen modulating valve and is comprised valve body 1, valve gap 16, actuator, spool 2 and valve rod 17, and wherein actuator comprises membrane cover 5, the pallet 13 be arranged in membrane cover 5, is arranged on control diaphragm 12 between pallet 13, is arranged on and controls spring seat 8 above diaphragm 12 and by the control spring 6 that the arranges adjustment disk 7 with spring seat 8 resilient engagement.Controlling diaphragm 12 because arranging in membrane cover 5, it being separated and forms upper film chamber 10 and lower film room 11.Valve rod 17 runs through and is arranged in valve body 1, valve gap 16 and actuator.Valve rod 17 upper end is fixedly connected with spring seat 8 with control diaphragm 12 is rear through pallet 13, and valve rod 17 lower end is fixedly installed spool 2.Spool 2 coordinates with the valve seat 3 arranged in valve body 1, and spool 2 coordinates with valve seat 3 from top to bottom.
Be fixedly installed between valve gap 16 and valve body 1 in first guide sleeve 4, first guide sleeve 4 and be provided with first medium passage 401.Be fixedly installed between actuator and valve gap 16 in second guide sleeve 14, second guide sleeve 14 and be provided with second medium passage 1401.First guide sleeve 4 and the second guide sleeve 14 are socketed with valve rod 17 and coordinate, and valve rod 17 are moved up and down more stable.Valve body 1 enter media end, the lower film room 11 of valve gap 16 inner chamber and actuator communicated by the first medium passage 401 that arranges and second medium passage 1401, such medium just can act directly on control diaphragm 12.
In order to improve control accuracy, avoiding rotating adjustment disk 7 and causing control spring 6 to twist, Driving force ball bearing 9 is set below spring seat 8.In order to limit the motion controlling diaphragm 12, inside membrane cover 5, be provided with one group of stroke limit bar 15.
During work, medium is entered by the media end that enters of valve body 1, and the position of spool 2 and the captured area between spool 2 and valve seat 3 determine rate-of flow.Medium enters actuator through first medium passage 401 and second medium passage 1401 and acts on and controls on diaphragm 12, and converts detent force at this.According to the stressed size of control spring 6, detent force adjustment spool 2 position.When upstream pressure raises, make spool 2 displacement, valve trend is opened, thus reaches pressure release object.Contrary to upstream pressure reduces, pressure regulator valve main valve trend is closed, thus reaches voltage stabilizing object.
Below be only described with regard to the utility model preferred embodiment, but can not be interpreted as it is limitations on claims.The utility model is not only confined to above embodiment, and its concrete structure allows to change.All various changes done in the protection domain of the utility model independent claims are all in protection domain of the present utility model.
Claims (4)
1. a ultra micro pressure lets out nitrogen modulating valve, comprise valve body (1), valve gap (16), actuator, spool (2) and valve rod (17), described actuator comprises membrane cover (5), be arranged on the pallet (13) in membrane cover (5), be arranged on the control diaphragm (12) between pallet (13), spring seat (8) and the adjustment disk (7) with spring seat (8) resilient engagement, described valve rod (17) runs through and is arranged on valve body (1), in valve gap (16) and actuator, described valve rod (17) upper end is fixedly connected with spring seat (8) with control diaphragm (12) afterwards through pallet (13), described valve body (1) lower end is fixedly connected with spool (2), described spool (2) coordinates with the valve seat (3) arranged in valve body (1), it is characterized in that being fixedly installed the first guide sleeve (4) between described valve gap (16) and valve body (1), first medium passage (401) is provided with in described the first guide sleeve (4), the second guide sleeve (14) is fixedly installed between described actuator and valve gap (16), second medium passage (1401) is provided with in described the second guide sleeve (14), described the first guide sleeve (4) and the second guide sleeve (14) are socketed with valve rod (17) and coordinate, described valve body (1) enter media end, the lower film room (11) of valve gap (16) inner chamber and actuator is communicated by the first medium passage (401) that arranges and second medium passage (1401).
2. a kind of ultra micro pressure as claimed in claim 1 lets out nitrogen modulating valve, it is characterized in that control spring (6) resilient engagement by arranging between described spring seat (8) and adjustment disk (7).
3. a kind of ultra micro pressure as claimed in claim 1 lets out nitrogen modulating valve, it is characterized in that described membrane cover (5) inner side is provided with one group of stroke limit bar (15).
4. a kind of ultra micro pressure as claimed in claim 1 lets out nitrogen modulating valve, it is characterized in that described spool (2) coordinates with valve seat (3) from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420488666.1U CN204083396U (en) | 2014-08-28 | 2014-08-28 | A kind of ultra micro pressure lets out nitrogen modulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420488666.1U CN204083396U (en) | 2014-08-28 | 2014-08-28 | A kind of ultra micro pressure lets out nitrogen modulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204083396U true CN204083396U (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420488666.1U Active CN204083396U (en) | 2014-08-28 | 2014-08-28 | A kind of ultra micro pressure lets out nitrogen modulating valve |
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| Country | Link |
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| CN (1) | CN204083396U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114227A (en) * | 2018-10-16 | 2019-01-01 | 四川勃朗蜀威科技有限公司 | High stability direct-operated regulator door machine structure |
-
2014
- 2014-08-28 CN CN201420488666.1U patent/CN204083396U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114227A (en) * | 2018-10-16 | 2019-01-01 | 四川勃朗蜀威科技有限公司 | High stability direct-operated regulator door machine structure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |