CN101818819B - High-frequency gas-liquid switch valve - Google Patents
High-frequency gas-liquid switch valve Download PDFInfo
- Publication number
- CN101818819B CN101818819B CN2010101681859A CN201010168185A CN101818819B CN 101818819 B CN101818819 B CN 101818819B CN 2010101681859 A CN2010101681859 A CN 2010101681859A CN 201010168185 A CN201010168185 A CN 201010168185A CN 101818819 B CN101818819 B CN 101818819B
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- valve
- static seal
- spool
- valve body
- valve pocket
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- 239000007788 liquid Substances 0.000 title claims abstract description 41
- 230000003068 static effect Effects 0.000 claims abstract description 65
- 238000007789 sealing Methods 0.000 claims abstract description 44
- 238000009434 installation Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
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- Sliding Valves (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The invention discloses a high-frequency gas-liquid switch valve, which comprises a valve spool. The valve spool is arranged in a valve bush which is arranged in an inner cavity of a valve body; one end of the valve bush is arranged in an end cover which is fixed on the valve body; a nozzle is fixed on the valve body; a fourth static seal is arranged in a static seal groove of the valve body; first and second dynamic seals are arranged in a dynamic seal groove of the valve spool; first, second and third static seals are arranged in the static seal groove of the valve bush; when an air control port is communicated with the atmosphere, liquid with pressure enters the valve body through an inlet, passes through an inlet hole and a valve bush small hole and only acts on the minor-diameter end of the valve spool, the valve spool moves upwards, the air control port discharges air, and the liquid enters the nozzle through a connecting hole of the nozzle and is ejected through an outlet; and when the air control port is communicated with compressed air, the valve spool moves downwards until the lower-end conical surface of the valve spool is contacted with the conical surface of the valve bush so as to cut off the liquid flowing to the outlet. The high-frequency gas-liquid switch valve has the advantages of long service life, high reliability of actions of the valve spool, good sealing property, simple processing and low manufacturing cost.
Description
Technical field
The invention belongs to cold rolling unit switch valve technical field, be specifically related to a kind of high-frequency gas-liquid switch valve.
Background technique
Existing cold rolling unit process lubrication system single-nozzle flow switching valve is divided into three kinds substantially both at home and abroad: first kind is the cartridge valve that directly drives spool type with electromagnet, the valve of this type, the manufacture cost height, the possibility of field maintenance is very low, if fault has only whole valve replacement; Second kind is the cartridge valve with the compressed air-driven spool type, because structural limitations, spool does not have relief hole, and along with the increase of service time, easily form the cavity pocketed oil, liquid easily leaks into air cavity, pollutes source of the gas, the reliability of spool action sharply reduces, and the plug-in mounting form causes the valve plate fabricating cost height of its installation simultaneously; The third is for driving the board-like installation valve of spool type with the pressurized air additional springs, the valve of this type requires height, this kind valve because of no valve pocket to air cavity air pressure, and the valve body difficulty of processing is big, and spool is stuck easily, seal spool only has together, is difficult to guarantee the real isolation in gas, liquid two chambeies.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of high-frequency gas-liquid switch valve, avoided cavity to be stranded pressing and liquid medium to the leakage of air cavity, have long service life, spool reliable in action height, good seal performance, processing is simple, fabricating cost is low advantage.
In order to achieve the above object, the technical solution used in the present invention is:
A kind of high-frequency gas-liquid switch valve, comprise spool 1, spool 1 is installed in the valve pocket 4, spool 1 can slide in valve pocket 4, pack into the inner chamber of valve body 5 of valve pocket 4, one end of valve pocket 4 is contained in the end cap 6, end cap 6 is fixed on the valve body 5, nozzle 7 is fixed on the valve body 5, the 4th static seal 11 is housed in the static seal groove of valve body 5, dispose first motive sealing 2 and second motive sealing 3 in the first motive sealing groove 13 of spool 1 and the second motive sealing groove 14 respectively, the first static seal groove 21 of valve pocket 4, the second static seal groove 22 and the 3rd static seal groove 23 are equipped with first static seal 8 respectively, second static seal 9 and the 3rd static seal 10, second static seal 9, the 3rd static seal 10 is with pack into the inner chamber of valve body 5 of valve pocket 4, and first static seal 8 is contained in the end cap 6 with an end of valve pocket 4.
Described spool 1 adopts macromolecular material, and structure is the multidiameter shaft form, and axle is provided with balancing slit 12, the first motive sealing groove 13 and the second motive sealing groove 14, and miner diameter end is a bevel sealing surface 15, and the bigger diameter end face is provided with air inlet duct 16.
Described valve pocket 4 endoporus are the shoulder hole form, and aperture 17 bottoms are bevel sealing surface 18, and macropore 19 bottoms are provided with exhaust port 20, and valve pocket 4 cylindricals are the multidiameter shaft form, are provided with the first static seal groove 21, the second static seal groove 22 and the 3rd static seal groove 23.
Described valve body 5 is the shoulder hole form, and is radial seal between the valve pocket 4, and hole, liquid inlet 24 and nozzle attachment hole were located at bi-side in 25 minutes, and the end of valve body 5 is provided with air vent 26, and valve body 5 adopts board-like installation pattern, and valve body 5 is provided with liquid inlet A.
Be radial seal between described end cap 6 and the valve pocket 4, valve pocket 4 embeds in the end cap 6, and the side of end cap 6 is provided with gas control mouth C.
Described nozzle 7 adopts the ball-joint form, and spray angle is adjustable in ± 15 ° of scopes, and nozzle 7 is provided with liquid outlet B.
Working principle of the present invention: spool 1, valve pocket 4, end cap 6, the cavity that second motive sealing 3 and first static seal 8 form is " air cavity ", spool 1, valve pocket 4, valve body 5, nozzle 7, first motive sealing 2, second static seal 9, the cavity that the 3rd static seal 10 and the 4th static seal 11 form is " liquid container ", spool 1, valve pocket 4, first motive sealing 2, second motive sealing 3, the cavity that first static seal 8 and second static seal 9 form is " cavity D ", when gas control mouth C inserts atmosphere, liquid with pressure enters valve body 5 by inlet A, liquid is through the inlet opening 24, only act on the miner diameter end of spool 1 behind valve pocket 4 apertures 17, spool 1 moves upward, cavity D is air-breathing, gas control mouth C exhaust, liquid enters nozzle 7 through the attachment hole 25 of nozzle 7, by outlet B ejection; When gas control mouth C fed pressurized air, gas only affacted spool 1 bigger diameter end after air inlet duct 16 enters air cavity, and spool 1 moves downward, air cavity continues air inlet, the cavity D exhaust contacts with the conical surface 18 of valve pocket 4 up to the spool 1 lower end conical surface 15, cuts off liquid flowing to outlet B.
Because spool adopts macromolecular material, movement inertia is low, and its structure adopts the design of low friction motive sealing, multidiameter shaft, balancing slit, thus the spool action the reliability height; Because the setting of air vent on valve pocket upper air-vent and the valve body, thus avoided cavity to be stranded pressing and liquid medium to the leakage of air cavity; Owing to adopt radial seal between end cap and the valve pocket, so good seal performance; Because it is simple that valve pocket makes that valve body structure becomes, nozzle angle is adjustable to increase the coverage area that this valve sprays, and adds board-like installation type structure, so have the advantage that processing is simple, fabricating cost is low.Under the air pressure of 4～6bar, during medium pressure liquid 3～7bar, can realize 5 times On/Off action each second during less than 1.5 times of air pressure when medium pressure liquid, the open and close life-span of valve reaches more than 105 times.
Description of drawings
Fig. 1 is a structure sectional view of the present invention.
Fig. 2-a is the sectional view of spool 1 of the present invention.
The side view of Fig. 2-b spool 1 of the present invention.
Fig. 3 is the sectional view of valve pocket 4 of the present invention.
Fig. 4 is the sectional view of valve body 5 of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in detail.
With reference to Fig. 1, a kind of high-frequency gas-liquid switch valve, comprise spool 1, spool 1 is installed in the valve pocket 4, spool 1 can slide in valve pocket 4, pack into the inner chamber of valve body 5 of valve pocket 4, one end of valve pocket 4 is contained in the end cap 6, end cap 6 is fixed on the valve body 5, nozzle 7 is fixed on the valve body 5 by nozzle attachment hole 25, the 4th static seal 11 is housed in the static seal groove of valve body 5, dispose first motive sealing 2 and second motive sealing 3 in the first motive sealing groove 13 of spool 1 and the second motive sealing groove 14 respectively, the first static seal groove 21 of valve pocket 4, the second static seal groove 22 and the 3rd static seal groove 23 are equipped with first static seal 8 respectively, second static seal 9 and the 3rd static seal 10, the second static seals 9, the 3rd static seal 10 is with pack into the inner chamber of valve body 5 of valve pocket 4, and first static seal 8 is contained in the end cap 6 with an end of valve pocket 4.
With reference to Fig. 2-a and Fig. 2-b, described spool 1 adopts macromolecular material, low inertia is convenient to realize the high frequency action, structure is the multidiameter shaft form, be convenient to less air pressure and can overcome fluid pressure driving spool, axle is provided with balancing slit 12, the first motive sealing groove 13 and the second motive sealing groove 14, and indent 12 is used to prevent spool 1 chucking, miner diameter end is a bevel sealing surface 15, and the bigger diameter end face is provided with air inlet duct 16.
With reference to Fig. 3, described valve pocket 4 endoporus are the shoulder hole form, to cooperate the motion of spool 1, aperture 17 bottoms are bevel sealing surface 18, macropore 19 bottoms are provided with exhaust port 20, valve pocket 4 cylindricals are the multidiameter shaft form, are provided with the first static seal groove 21, the second static seal groove 22 and the 3rd static seal groove 23.
With reference to Fig. 4, described valve body 5 is the shoulder hole form, and be radial seal between the valve pocket 4, hole, liquid inlet 24 and nozzle attachment hole were located at bi-side in 25 minutes, the end of valve body 5 is provided with air vent 26, and to cooperate air-breathing, the exhaust of cavity D, valve body 5 adopts board-like installation pattern, valve body 5 is provided with liquid inlet A, and liquid enters valve body 5 by inlet A.
Be radial seal between described end cap 6 and the valve pocket 4, guaranteed the sealing effect of air cavity, valve pocket 4 embeds in the end cap 6, makes whole valve arrangement compact more, and gas control mouth C is located at the side of end cap 6.
Described nozzle 7 adopts the ball-joint form, and spray angle is adjustable in ± 15 ° of scopes, and the sealing of ball pivot has the awl sealed characteristic, and nozzle 7 is provided with liquid outlet B, and when valve was opened, liquid was by outlet B ejection.
Working principle of the present invention: spool 1, valve pocket 4, end cap 6, the cavity that second motive sealing 3 and first static seal 8 form is " air cavity ", spool 1, valve pocket 4, valve body 5, nozzle 7, first motive sealing 2, second static seal 9, the cavity that the 3rd static seal 10 and the 4th static seal 11 form is " liquid container ", spool 1, valve pocket 4, first motive sealing 2, second motive sealing 3, the cavity that first static seal 8 and second static seal 9 form is " cavity D ", " cavity D " is by the exhaust port 20 on the valve pocket 4, air vent 26 on the valve body 5 links to each other with atmosphere all the time, when gas control mouth C inserts atmosphere, liquid with pressure enters valve body 5 by inlet A, because the seal action of first motive sealing 2 on the spool 1, liquid is through the inlet opening 24, only act on the miner diameter end of spool 1 behind valve pocket 4 apertures 17, spool 1 moves upward, cavity D is air-breathing, gas control mouth C exhaust, at this moment, inlet A is communicated with outlet B, liquid enters nozzle 7 through the attachment hole 25 of nozzle 7, by outlet B ejection; When gas control mouth C feeds pressurized air, because the seal action of second motive sealing 3 on the spool 1, gas only affacts spool 1 bigger diameter end after air inlet duct 16 enters air cavity, because spool 1 bigger diameter end area is much larger than the miner diameter end area, the active force that the downward active force of air cavity will make progress greater than liquid container, spool 1 moves downward, air cavity continues air inlet, the cavity D exhaust contacts with the conical surface 18 of valve pocket 4 up to the spool 1 lower end conical surface 15, cuts off liquid flowing to outlet B.
In the accompanying drawing: 1 is spool; 2 is first movable sealing; 3 is second movable sealing; 4 is valve pocket; 5 is valve body; 6 is end cap; 7 is nozzle; 8 is first static seal; 9 is second static seal; 10 is the 3rd static seal; 11 is the 4th static seal; 12 is balancing slit; 13 is the first movable sealing groove; 14 is the second movable sealing groove; 15 is the spool bevel sealing surface; 16 is air inlet duct; 17 is aperture; 18 is the valve pocket bevel sealing surface; 19 is macropore; 20 is steam vent; 21 is the first static seal groove; 22 is the second static seal groove; 23 is the 3rd static seal groove; 24 is the ingate of liquid; 25 is the connecting hole of nozzle; 26 is air discharge duct; A is entrance; B is outlet; C is the gas control mouth; D is cavity.
Claims (1)
1. high-frequency gas-liquid switch valve, comprise spool (1), spool (1) is installed in the valve pocket (4), spool (1) can slide in valve pocket (4), pack into the inner chamber of valve body (5) of valve pocket (4), one end of valve pocket (4) is contained in the end cap (6), end cap (6) is fixed on the valve body (5), nozzle (7) is fixed on the valve body (5) by nozzle attachment hole (25), the 4th static seal (11) is housed in the static seal groove of valve body (5), it is characterized in that: dispose first motive sealing (2) and second motive sealing (3) respectively in the first motive sealing groove (13) of spool (1) and the second motive sealing groove (14), the first static seal groove (21) of valve pocket (4), the second static seal groove (22) and the 3rd static seal groove (23) are equipped with first static seal (8) respectively, second static seal (9) and the 3rd static seal (10), second static seal (9), the 3rd static seal (10) is with pack into the inner chamber of valve body (5) of valve pocket (4), and first static seal (8) is contained in the end cap (6) with an end of valve pocket (4);
Described spool (1) adopts macromolecular material, and structure is the multidiameter shaft form, and axle is provided with balancing slit (12), the first motive sealing groove (13) and the second motive sealing groove (14), and miner diameter end is bevel sealing surface (15), and the bigger diameter end face is provided with air inlet duct (16);
Described valve pocket (4) endoporus is the shoulder hole form, aperture (17) bottom is bevel sealing surface (18), macropore (19) bottom is provided with exhaust port (20), valve pocket (4) cylindrical is the multidiameter shaft form, is provided with the first static seal groove (21), the second static seal groove (22) and the 3rd static seal groove (23);
Described valve body (5) is the shoulder hole form, and be radial seal between the valve pocket (4), hole, liquid inlet (24) and nozzle attachment hole (25) branch are located at bi-side, the end of valve body (5) is provided with air vent (26), valve body (5) adopts board-like installation pattern, and valve body (5) is provided with liquid inlet (A);
Be radial seal between described end cap (6) and the valve pocket (4), valve pocket (4) embeds in the end cap (6), and the side of end cap (6) is provided with gas opening (C);
Described nozzle (7) adopts the ball-joint form, and spray angle is adjustable in ± 15 ° of scopes, and nozzle (7) is provided with liquid outlet (B).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101681859A CN101818819B (en) | 2010-05-10 | 2010-05-10 | High-frequency gas-liquid switch valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101681859A CN101818819B (en) | 2010-05-10 | 2010-05-10 | High-frequency gas-liquid switch valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101818819A CN101818819A (en) | 2010-09-01 |
| CN101818819B true CN101818819B (en) | 2011-06-22 |
Family
ID=42654027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101681859A Active CN101818819B (en) | 2010-05-10 | 2010-05-10 | High-frequency gas-liquid switch valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN101818819B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6557819B2 (en) * | 1993-08-06 | 2003-05-06 | Cary M. Austin | Roll seal control valve |
| JP2008075827A (en) * | 2006-09-25 | 2008-04-03 | Denso Corp | Fluid control valve |
| CN201265694Y (en) * | 2008-09-11 | 2009-07-01 | 江苏星A包装机械集团有限公司 | Pneumatic liquid feeding valve |
| CN201377591Y (en) * | 2009-03-05 | 2010-01-06 | 郭丰时 | Pneumatic valve |
| CN201672066U (en) * | 2010-05-10 | 2010-12-15 | 中国重型机械研究院有限公司 | High frequency gas-liquid switch valve |
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2010
- 2010-05-10 CN CN2010101681859A patent/CN101818819B/en active Active
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| Publication number | Publication date |
|---|---|
| CN101818819A (en) | 2010-09-01 |
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| CP01 | Change in the name or title of a patent holder |
Address after: 710032 Shaanxi province Xi'an Weiyang Dongyuan Road No. 209 Chinese Heavy Machinery Research Institute Co. Ltd. Patentee after: China National Heavy Machinery Research Institute Co., Ltd. Address before: 710032 Shaanxi province Xi'an Weiyang Dongyuan Road No. 209 Chinese Heavy Machinery Research Institute Co. Ltd. Patentee before: China National Heavy Machinery Research Institute Co., Ltd. |