CN201188193Y - Air-operated apparatus for adjusting gas flux - Google Patents
Air-operated apparatus for adjusting gas flux Download PDFInfo
- Publication number
- CN201188193Y CN201188193Y CNU2008200745743U CN200820074574U CN201188193Y CN 201188193 Y CN201188193 Y CN 201188193Y CN U2008200745743 U CNU2008200745743 U CN U2008200745743U CN 200820074574 U CN200820074574 U CN 200820074574U CN 201188193 Y CN201188193 Y CN 201188193Y
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- valve body
- main
- corrugated tube
- bolt
- hole
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Abstract
The utility model relates to a pneumatic type gas flow adjusting device which is composed of an upper valve body, a lower valve body and an adjusting mechanism. The adjusting mechanism is positioned at the center of the valve body, and is composed of a secondary adjustable bolt, a secondary adjusting spring, a corrugated tube, a guiding part, a main valve stem, a main adjusting spring and a main adjustable bolt, wherein, the corrugated tube is formed by welding stainless steel materials; a circular hole for the orientation function of vertically moving the main valve stem is arranged at the center of the guiding part; a hemispherical valve core is arranged on the main valve stem; the gas flow is adjusted through opening and closing the hemispherical valve core and the main valve hole; the upper and the lower valve bodies are assembled into a whole through the fixed bolt of the valve bodies; a back pressure cavity is formed after the corrugated tube is assembled with the upper valve body; an upper gas-out cavity is formed between the corrugated tube and the guiding part, and a lower corrugated tube is formed between the guiding part and the lower valve body. The utility model has the advantages of simple structure, high production efficiency and low cost, long service life due to the corrugated tube formed by welding the stainless steel materials, wide application scope, safety and reliability, and is suitable for occasions related to combustible gas.
Description
(1) technical field
The utility model relates to a kind of gas flow adjusting means, particularly a kind of pneumatic type gas flow adjusting means.
(2) background technology
Gas flow adjusting means is mainly two kinds of regulative modes at present, and promptly electromagnetic type is regulated and the pneumatic type adjusting.Electromagnetic type gas flow adjusting means complex structure and cost height, and use occasion is restricted, if do not have corresponding explosion-proof design, the inflammable gas field that can not be used for easily blasting; The pneumatic type gas flow adjusting means adopts corrugated stainless steel tubing or diaphragm structure more, but corrugated stainless steel tubing adopts the moulding corrugated tube usually, and its shortcoming is fragile, life-span weak point; Diaphragm has metallic membrane or rubber diaphragm, and metallic membrane equally also is fragile, life-span weak point, and rubber diaphragm then can not be used in the occasion of corrosive gas.
(3) utility model content
The purpose of this utility model is at the problems referred to above, provide a kind of simple in structure, cost is low, long service life, applied range, peace gold pneumatic type gas flow adjusting means reliably.
The technical solution of the utility model:
A kind of pneumatic type gas flow adjusting means, it is characterized in that: form by upper valve body, following valve body and governor motion, upper valve body is provided with back pressure cavity air admission hole and back pressure cavity venthole, is used for joining with outside electromagnetic proportional valve, and following valve body is provided with main valve hole, primary air inlet and main gas outlet; Governor motion is positioned at the center of valve body, regulate bolt by pair, auxiliary governor spring, corrugated tube, guide, main valve stem, main regulation spring and main regulation bolt constitute, the decrement that secondary adjusting bolt and auxiliary governor spring are used to regulate corrugated tube, corrugated tube adopts stainless steel to make with welding manner, it is positioned at, between the following valve body and with last, following valve body is fixed, the center-pole top and the auxiliary governor spring of corrugated tube join, bottom and main valve stem join, guide is positioned at, between the following valve body and with last, following valve body is fixed, the guide center is provided with circular hole and is used for the guide effect that main valve stem moves up and down, also being provided with air hole on the guide makes, following outlet chamber communicates, one end of main valve stem inserts in the circular hole at guide center and joins with the center-pole of corrugated tube, the other end joins with main regulation spring and main regulation bolt, main valve stem is provided with the dome-type spool, keying adjustments of gas flow by dome-type spool and main valve hole, main regulation spring and main regulation bolt and main valve stem join and make dome-type spool and main valve hole closure when not working on the main valve stem, and governor motion is by being regulated bolt and main regulation bolt respectively with last by pair, following valve body is fixed; Upper and lower valve body is assembled into one by the valve body set bolt, constitute back pressure cavity between assembling back corrugated tube and the upper valve body, constitute between corrugated tube and the guide and go up outlet chamber, constitute outlet chamber down between guide and the following valve body, use the sealing bolt that matches with upper valve body that the pair of governor motion is regulated bolt seal after assembling is finished.
A kind of above-mentioned pneumatic type gas flow adjusting means is characterized in that: back pressure cavity venthole and back pressure cavity air admission hole are a hole, link to each other with back pressure cavity air inlet electromagnetic proportional valve with the back pressure cavity electromagnetic proportional valve of giving vent to anger respectively by pipeline.
A kind of above-mentioned pneumatic type gas flow adjusting means is characterized in that: the air hole on the guide is 6.
The utility model has the advantages that: simple in structure, production efficiency is high, cost is low; Because corrugated tube adopts stainless steel to make with welding manner, so long service life; Applied range is safe and reliable, is specially adapted to relate to the occasion of inflammable gas.
(4) description of drawings
Fig. 1 is a pneumatic type gas flow adjusting means structural representation.
Among the figure: 1. sealing bolt 2. back pressure cavity ventholes 3. back pressure cavity air admission holes 4. pairs are regulated outlet chamber 19. valve body set bolts on 15. times outlet chambers of bolt 5. auxiliary governor springs, 6. back pressure cavity 7. corrugated tubes, 8. guide 8-I. air hole 9. main valve holes, 10. primary air inlet 11. main regulation springs, 12. main regulation bolt 14. times valve bodies in 13. main gas outlets, 16. main valve stems, 17. upper valve bodies 18.
(5) embodiment
Embodiment: a kind of pneumatic type gas flow adjusting means, form by upper valve body 17, following valve body 14 and governor motion, upper valve body 17 is provided with back pressure cavity air admission hole 3 and back pressure cavity venthole 2, be used for joining with outside electromagnetic proportional valve, following valve body 14 is provided with main valve hole 9, primary air inlet 10 and main gas outlet 13; Governor motion is positioned at the center of valve body, regulate bolt 4 by pair, auxiliary governor spring 5, corrugated tube 7, guide 8, main valve stem 16, main regulation spring 11 and main regulation bolt 12 constitute, the decrement that secondary adjusting bolt 4 and auxiliary governor spring 5 are used to regulate corrugated tube 7, corrugated tube 7 adopts stainless steel to make with welding manner, it is positioned at, following valve body 17, between 14 and with last, following valve body is fixed, the center-pole top and the auxiliary governor spring 5 of corrugated tube 7 join, bottom and main valve stem 16 join, guide 8 is positioned at, between the following valve body 17,14 and with last, following valve body is fixed, guide 8 centers are provided with circular hole and are used for the guide effect that main valve stem 16 moves up and down, also being provided with 6 air hole 8-I on the guide 8 makes, following outlet chamber 18,15 communicate, one end of main valve stem 16 inserts in the circular hole at guide 8 centers and joins with the center-pole of corrugated tube 7, the other end joins with main regulation spring 11 and main regulation bolt 12, main valve stem 16 is provided with the dome-type spool, keying adjustments of gas flow by dome-type spool and main valve hole 9, main regulation spring 11 and main regulation bolt 12 joins with main valve stem 16 and makes dome-type spool and main valve hole 9 closure when not working on the main valve stem 16, governor motion by by pair adjusting bolt 4 and main regulation bolt 12 respectively with last, following valve body 17,14 is fixing; Upper and lower valve body 17,14 is assembled into one by valve body set bolt 19, constitute back pressure cavity 6 between assembling back corrugated tube 7 and the upper valve body 17, constitute between corrugated tube 7 and the guide 8 and go up outlet chamber 18, constitute outlet chamber 15 down between guide 8 and the following valve body 14, use the sealing bolt 1 that matches with upper valve body 17 that the pair of governor motion is regulated bolt 4 sealings after assembling is finished.When using this flow regulator, at first air intake opening 10 connects source of the gas, simultaneously back pressure cavity air admission hole 3 is connected source of the gas by electromagnetic proportional valve, back pressure cavity venthole 2 by another electromagnetic proportional valve to atmosphere opening.On the pipeline of gas outlet 13, connect flow sensor.Above two electromagnetic proportional valves and flow sensor and closed-loop control device can be electrically connected, realize the automatic control of exit gas flow.Original state is that back pressure cavity 6 inside do not have pressure, because the effect of main regulation spring 11, main valve stem and hemispherical main valve clack 16 are lifted, and main valve hole 9 is blocked, and does not have flow to flow through from air intake opening 10 to the gas outlet 13.After air intake opening 10 was connected source of the gas, the flow that while closed-loop control device basis will be controlled was regulated the electromagnetic proportional valve of back pressure cavity air admission hole 3 and back pressure cavity venthole 2 respectively, made back pressure cavity 6 produce certain pressure.Therefore this pressure moves down the end face of corrugated tube 7, drives main valve stem and hemispherical main valve clack 16 moves down, and makes main valve hole 9 that certain aperture arranged, and gas can flow to gas outlet 13 by main valve hole 9 from air intake opening 10, and the big I of its flow is measured by flow sensor.
When if air intake opening 10 flows to gas outlet 13 flows increase by main valve hole 9, the electromagnetic proportional valve of closed-loop control device scalable back pressure cavity air admission hole 3 and back pressure cavity venthole 2, back pressure cavity 6 pressure inside are reduced, like this owing to the elasticity of main regulation spring 11, pressure upwards the acting on of going up outlet chamber 18 and following outlet chamber 15 internal gas to corrugated tube 7 end faces, main valve stem and hemispherical main valve clack 16 are moved up, main valve hole 9 apertures reduce, and make air intake opening 10 flow to gas outlet 13 flows by main valve hole 9 and reduce.If air intake opening 10 flows to gas outlet 13 flows when reducing by main valve hole 9, the electromagnetic proportional valve of closed-loop control device scalable back pressure cavity air admission hole 3 and back pressure cavity venthole 2, back pressure cavity 6 pressure inside are increased, after the upwards effect of the pressure that overcomes main regulation spring 11 and last outlet chamber 18 and following outlet chamber 15 internal gas to corrugated tube 7 end faces, the end face of corrugated tube 7 moves down, drive main valve stem thus and hemispherical main valve clack 16 moves down, main valve hole 9 apertures increase, and make air intake opening 10 flow to gas outlet 13 flows by main valve hole 9 and increase.
Corrugated tube adopts the stainless steel welding to make in the present embodiment, and all the other each parts adopt the size and the technical parameter of aluminium manufacturing, critical piece to be: valve body external diameter 120mm, whole height are 170mm; Air hole 8-I diameter is 6mm; The diameter of air intake opening 10 and gas outlet 13 is 20mm; Main valve hole 9 diameter 10mm; Main valve stem and hemispherical main valve clack 16 top diameters are 5mm, and the below diameter is 8mm, and the length of main valve stem and hemispherical main valve clack 16 is 70mm, and the sphere diameter of main valve stem and hemispherical main valve clack 16 is 18mm, and spherical main valve clack 16 movable distance are 4mm; The elasticity coefficient of back pressure cavity regulating spring 5 is 5.88 newton/mm; Corrugated tube 7 elasticity coefficient are 6 newton/mm, and corrugated tube 7 garden shape end face diameters are 69mm; Main regulation spring 11 elasticity coefficient 84 newton/mm.Present embodiment is 50kPa at air intake opening pressure, when gas outlet pressure is 10kPa, rate of discharge range of adjustment 0～1500L/min.
Claims (3)
1. pneumatic type gas flow adjusting means, it is characterized in that: form by upper valve body, following valve body and governor motion, upper valve body is provided with back pressure cavity air admission hole and back pressure cavity venthole, is used for joining with outside electromagnetic proportional valve, and following valve body is provided with main valve hole, primary air inlet and main gas outlet; Governor motion is positioned at the center of valve body, regulate bolt by pair, auxiliary governor spring, corrugated tube, guide, main valve stem, main regulation spring and main regulation bolt constitute, the decrement that secondary adjusting bolt and auxiliary governor spring are used to regulate corrugated tube, corrugated tube adopts stainless steel to make with welding manner, it is positioned at, between the following valve body and with last, following valve body is fixed, the center-pole top and the auxiliary governor spring of corrugated tube join, bottom and main valve stem join, guide is positioned at, between the following valve body and with last, following valve body is fixed, the guide center is provided with circular hole and is used for the guide effect that main valve stem moves up and down, also being provided with air hole on the guide makes, following outlet chamber communicates, one end of main valve stem inserts in the circular hole at guide center and joins with the center-pole of corrugated tube, the other end joins with main regulation spring and main regulation bolt, main valve stem is provided with the dome-type spool, keying adjustments of gas flow by dome-type spool and main valve hole, main regulation spring and main regulation bolt and main valve stem join and make dome-type spool and main valve hole closure when not working on the main valve stem, and governor motion is by being regulated bolt and main regulation bolt respectively with last by pair, following valve body is fixed; Upper and lower valve body is assembled into one by the valve body set bolt, constitute back pressure cavity between assembling back corrugated tube and the upper valve body, constitute between corrugated tube and the guide and go up outlet chamber, constitute outlet chamber down between guide and the following valve body, use the sealing bolt that matches with upper valve body that the pair of governor motion is regulated bolt seal after assembling is finished.
2. pneumatic type gas flow adjusting means according to claim 1 is characterized in that: back pressure cavity venthole and back pressure cavity air admission hole are a hole, link to each other with back pressure cavity air inlet electromagnetic proportional valve with the back pressure cavity electromagnetic proportional valve of giving vent to anger respectively by pipeline.
3. pneumatic type gas flow adjusting means according to claim 1 is characterized in that: the air hole on the guide is 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200745743U CN201188193Y (en) | 2008-04-29 | 2008-04-29 | Air-operated apparatus for adjusting gas flux |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200745743U CN201188193Y (en) | 2008-04-29 | 2008-04-29 | Air-operated apparatus for adjusting gas flux |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201188193Y true CN201188193Y (en) | 2009-01-28 |
Family
ID=40311216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200745743U Expired - Fee Related CN201188193Y (en) | 2008-04-29 | 2008-04-29 | Air-operated apparatus for adjusting gas flux |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201188193Y (en) |
-
2008
- 2008-04-29 CN CNU2008200745743U patent/CN201188193Y/en not_active Expired - Fee Related
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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 |
Granted publication date: 20090128 Termination date: 20150429 |
|
| EXPY | Termination of patent right or utility model |