CN205190773U - Disconnect -type gas accuse high temperature pulse valve - Google Patents
Disconnect -type gas accuse high temperature pulse valve Download PDFInfo
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- CN205190773U CN205190773U CN201520983847.6U CN201520983847U CN205190773U CN 205190773 U CN205190773 U CN 205190773U CN 201520983847 U CN201520983847 U CN 201520983847U CN 205190773 U CN205190773 U CN 205190773U
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Abstract
The utility model provides a disconnect -type gas accuse high temperature pulse valve comprises solenoid electric valve and pulse valve body two parts, and the pulse valve body includes: the valve body has jet -propelled entry, jet -propelled export and gas control mouth three opening altogether on, the gas control mouth passes through gas piping and solenoid electric valve links to each other, and jet -propelled export lies in looks remote site each other with the gas control mouth, piston assembly is arranged in the valve body, and including the piston rod, the piston is connected to piston rod one end, and one side of gland is connected to the other end, seal assembly is arranged in the valve body, including the sealing ring, the piston is located between gas control mouth and the backup pad, and the piston rod passes the backup pad, and the opposite side of gland exports for jet -propelled, and sealing between gland and jet -propelled export is realized to the sealing ring, and jet -propelled entry is located between gland and the backup pad, the utility model discloses the jetting operation is laminated with the help of the transition of gland and sealing ring contact surface and is thrown off and realize, and this process is controlled by piston assembly's reciprocating motion, has weakened the influence of heat -conduction to the solenoid valve, has improved the reliability of working.
Description
Technical field
The utility model belongs to high-temperature dust removal technical field, particularly a kind of separated type gas control high temperature pulse valve.
Background technique
Along with improving constantly of Environmental Protection in China standard and relevant technological process entails, high-temperature dust removal technology Coal Chemical Industry, metallurgy, the sector application such as coloured more and more general.High-temperature gas sentinel valve is the very important parts of of filter tube type gas cleaning at high temperature system, and its performance and reliability have decisive influence to complete machine service behaviour.Particularly in coal in low temperature pyrogenation process system, for make the tar received can have higher degree of purity, must filter out in advance high-temperature hot vent one's spleen in solid particulate matter.Adopt filter tube type high temperature air filtration device, high temperature inert gas or purified gas timing must be adopted to carry out blowback to chimney filter external sediment dust layer, to remove outside institute accumulated powder dirt, avoid affecting chimney filter strainability.For preventing because temperature is too low, cause tar condensing to block chimney filter, the temperature of General Requirements purge gas is 200 ~ 500 DEG C, and temperature is higher, then relatively more not easily block.The sentinel valve type that can be used for high-temperature gas is in the market also very limited, far can not meet the needs in market.Adopt traditional diaphragm type sentinel valve, although structure is simple, the temperature resistant capability of diaphragm is poor, and fatigue life is short, cannot meet the working condition requirement of high-temperature gas.The structure of traditional pulse valve has also made a small amount of purge gas leak in surrounding atmosphere, affects surrounding environment.When adopting coal gas to be blowback air, the coal gas leaking into surrounding also can cause potential safety hazard.In addition, find the high temperature pulse that patent No. CN103470782A and CN102032384A relates to and clean valve, owing to have employed extraordinary bellows and Special cylinder and position limit switch displacement controller etc., thus make whole apparatus structure huge, complicated, and cost is very high, inconvenient user adopts.Therefore, for better adapting to and meeting market demand, urgently develop that a kind of temperature resistant capability is strong, structure is simple, cost is low, the new type high temperature sentinel valve of reliable operation.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide a kind of separated type gas control high temperature pulse valve, and its structure is more simple, performance is better, cost is lower, with meet market in the urgent need to.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of separated type gas control high temperature pulse valve, be made up of solenoid electric valve and sentinel valve body two-part, described sentinel valve body comprises:
Valve body 6, valve body 6 has jet entrance, gas-blowing outlets and gas control mouth totally three openings, and gas is controlled mouth and is connected with solenoid electric valve by gas piping, and gas-blowing outlets and gas control mouth and is positioned at opposite end each other;
Piston assembly, is arranged in valve body 6, comprises piston rod 9, and piston rod 9 one end connects piston 8, and the other end connects the side of gland 11;
Black box, is arranged in valve body 6, comprises seal ring 15;
Wherein, piston 8 controls between mouth and dunnage 17 at gas, piston rod 9 is through dunnage 17, the opposite side of gland 11 is gas-blowing outlets, seal ring 15 realizes the sealing between gland 11 and gas-blowing outlets, jet entrance, between gland 11 and dunnage 17, realizes the clutch of gland 11 and seal ring 15 by the movement of piston 8.
That is, the utility model winding-up operation alternately fitting and throwing off and realize by means of both gland 11 and seal ring 15 surface of contact, and this process is controlled by moving back and forth of piston assembly.
Described jet entrance is in the side of valve body 6, gas-blowing outlets is in the bottom of valve body 6, gas controls mouth and opens on the end cap 5 on valve body 6 top, if can subtract or avoid the high temperature from filtering gas and blowback medium to conduct to solenoid electric valve, affects electric component and normally works.
Piston 8 is positioned at above dunnage 17, dunnage 17 is positioned at jet entrance top, piston rod 9 top is through dunnage 17, top is connected with piston 8, piston rod 9 bottom is through gland 11, bottom is supported on graphite bearing 14, and graphite bearing 14 is arranged on the center portion of the bearing 12 of the band pore being positioned at gas-blowing outlets place.
Described piston rod 9 has damping spring group 10, and damping spring group 10 is between dunnage 17 and baffle plate 16, and baffle plate 16 is positioned at above gland 11; Damping spring group 10 can adopt disc spring or helical spring, and material adopts stainless steel, to slow down the impact in working procedure.
Described black box also comprises Sealing 7, and Sealing 7 realizes the sealing that piston 8 and gas control between mouth.
Described gas-blowing outlets is provided with exhaust flange 13.
Described solenoid electric valve comprises compressed gas source 1, and compressed gas source 1 connects gas by gas piping and controls mouth, and on gas piping, be disposed with reduction valve 2 and three position four-way electromagnetic valve 3, and joint realizes sealing and dismountable connection by pipe joint 4.
Described compressed gas source 1 is clean air, and controlled to enter or discharge sentinel valve body by solenoid directional control valve, the blowing gas that described sentinel valve body uses is air pressure 0.3 ~ 0.6MPa, the nitrogen that temperature is 300 DEG C or purified gas.
Described solenoid electric valve and sentinel valve body are separation structure, and two-part installation spaced apart, connects by means of only gas piping.
The surface of contact of the utility model seal ring 15 have employed special high temperature-resistant engineering plastics, and normal working temperature can reach 300 DEG C.
The utility model can adopt temperature 250 ~ 300 DEG C, the nitrogen of pressure 0.3 ~ 0.6MPa, or filters clean pyrolysis gas and carry out blowback as purge gas.Elastic restoring force during damping spring group 10 maximum compressibility should be less than purge gas and act on pressure on working surface of piston.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model realizes Pulse Width Control by adopting separated type air-operated solenoid valve, and structure is simple, and action is quick, greatly reduces the impact of heat transfer on solenoid valve, improves the reliability of work.
2, the utility model have employed general stainless steel spring implementation procedure buffering, enormously simplify structure, is also convenient to manufacture.
3, the utility model adopts fire resistant special type material to be seal valve seat, effectively improves the heat resistance of sentinel valve.
4, small and exquisite, light, the low cost of manufacture of the utility model separated type gas control high temperature pulse valve entirety.
5, the utility model separated type gas control high temperature pulse valve purge gas can adopt temperature to be 250 ~ 300 DEG C, the nitrogen of pressure 0.3 ~ 0.6MPa, or filtered pyrolysis gas.Special construction makes to be discharged in surrounding environment without the need to worrying that blowback air is known from experience.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
Mode of execution of the present utility model is described in detail below in conjunction with drawings and Examples.
As shown in Figure 1, a kind of separated type gas control high temperature pulse valve, comprises two separate sections, and first portion is the solenoid directional control valve connecting source of the gas, and second portion is sentinel valve body, and two parts are connected by gas piping.The structure of separated type can weaken the higher sentinel valve body portion of temperature to the impact of solenoid valve, and both can spaced apartly install respectively.
Described sentinel valve body mainly includes end cap 5, valve body 6, sealing 7, piston 8, piston rod 9, disc spring group 10, gland 11, bearing 12, exhaust flange 13, graphite bearing 14, seal ring 15, baffle plate 16 and support plate 17.
The composition such as described piston 8, piston rod 9, disc spring group 10, gland 11 piston assembly, whole piston assembly can move up and down in the cylinder barrel of valve body 7.In piston assembly, the lower end surface of gland 11 is in the course of the work, during pulse jet and seal ring 15 working surface depart from, stop winding-up time be then pressed on the working surface of seal ring 15.In piston assembly, one end of piston rod is supported on graphite bearing 14, the concentricity in moving to keep piston assembly.Disc spring 10 in assembly is operated in preloading condition, can improve system rigidity on the one hand, on the other hand, can slow down the impact of assembly in the course of the work.Seal ring 15 is connected with valve body 6 by bearing 12, exhaust flange 13.The other end of valve body 6 is connected with end cap 5, and end cap 5 is connected with solenoid valve by gas piping.Two opening flanges of valve body 6, one is connected with winding-up source of the gas, another then be blowed chimney filter and be connected.
Working principle of the present utility model is as follows:
During work, valve body 6 one end is connected with gas bag, and be the nitrogen of 0.3 ~ 0.6MPa in gas bag, temperature about 300 DEG C, also can be the coal gas after purification.The upper end of valve gap 5 is connected with corresponding solenoid valve 3 by gas piping, and the pressurized air of 0.4 ~ 0.8MPa, by reduction valve 2, is filled with the upper cavity of valve body 6 under electromagnetic valve.Owing to controlling the effect of gas, gland 11 and seal ring 15 liang of surface of contact fit tightly, and now do not carry out winding-up operation.When needs are jetted, by the control of solenoid valve, the control gas on exits valve body 6 top.After this, blowing gas is through the perforate on support plate 17, gas pressure acts directly on the lower end surface of piston 8, piston 8 starts to move up, the surface of contact of gland 11 and seal ring 15 is thrown off, blowing gas, by throwing off gap through the perforate on bearing 12, sprays via exhaust flange 13, thus realizes winding-up operation.
When needs stop winding-up, make control gas enter the epicoele of valve body 6 again by solenoid valve, under the acting in conjunction controlling gas and disc spring 10, piston assembly moves downward, and gland 11 and seal ring 15 liang of surface of contact compress laminating again, and winding-up stops.So go round and begin again, the winding-up operation of property performance period.
Claims (10)
1. a separated type gas control high temperature pulse valve, be made up of solenoid electric valve and sentinel valve body two-part, it is characterized in that, described sentinel valve body comprises:
Valve body (6), valve body (6) has jet entrance, gas-blowing outlets and gas control mouth totally three openings, and gas is controlled mouth and is connected with solenoid electric valve by gas piping, and gas-blowing outlets and gas control mouth and is positioned at opposite end each other;
Piston assembly, is arranged in valve body (6), comprises piston rod (9), and piston rod (9) one end connects piston (8), and the other end connects the side of gland (11);
Black box, is arranged in valve body (6), comprises seal ring (15);
Wherein, piston (8) is positioned at gas and controls between mouth and dunnage (17), piston rod (9) is through dunnage (17), the opposite side of gland (11) is gas-blowing outlets, seal ring (15) realizes the sealing between gland (11) and gas-blowing outlets, jet entrance is positioned between gland (11) and dunnage (17), is realized the clutch of gland (11) and seal ring (15) by the movement of piston (8).
2. separated type gas control high temperature pulse valve according to claim 1, it is characterized in that, described jet entrance is in the side of valve body (6), and gas-blowing outlets is in the bottom of valve body (6), and gas controls mouth and opens on the end cap (5) on valve body (6) top.
3. separated type gas control high temperature pulse valve according to claim 2, it is characterized in that, piston (8) is positioned at dunnage (17) top, dunnage (17) is positioned at jet entrance top, piston rod (9) top is through dunnage (17), top is connected with piston (8), piston rod (9) bottom is through gland (11), bottom is supported on graphite bearing (14), and graphite bearing (14) is arranged on the center portion of the bearing (12) of the band pore being positioned at gas-blowing outlets place.
4. separated type gas control high temperature pulse valve according to claim 2, it is characterized in that, described piston rod (9) there is damping spring group (10), damping spring group (10) is positioned between dunnage (17) and baffle plate (16), and baffle plate (16) is positioned at gland (11) top.
5. separated type gas control high temperature pulse valve according to claim 4, is characterized in that, described damping spring group (10) adopts disc spring or helical spring.
6. separated type gas control high temperature pulse valve according to claim 1 or 2, it is characterized in that, described black box also comprises Sealing (7), and Sealing (7) realizes the sealing that piston (8) and gas control between mouth.
7. separated type gas control high temperature pulse valve according to claim 1 or 2, it is characterized in that, described gas-blowing outlets is provided with exhaust flange (13).
8. separated type gas control high temperature pulse valve according to claim 1 or 2, it is characterized in that, described solenoid electric valve comprises compressed gas source (1), compressed gas source (1) connects gas by gas piping and controls mouth, and on gas piping, being disposed with reduction valve (2) and three position four-way electromagnetic valve (3), joint realizes sealing and dismountable connection by pipe joint (4).
9. separated type gas control high temperature pulse valve according to claim 8, it is characterized in that, described compressed gas source (1) is clean air, controlled to enter or discharge sentinel valve body by solenoid directional control valve, the blowing gas that described sentinel valve body uses is air pressure 0.3 ~ 0.6MPa, the nitrogen that temperature is 300 DEG C or purified gas.
10. separated type gas control high temperature pulse valve according to claim 1 or 2, it is characterized in that, described solenoid electric valve and sentinel valve body are separation structure, and two-part installation spaced apart, connects by means of only gas piping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520983847.6U CN205190773U (en) | 2015-12-01 | 2015-12-01 | Disconnect -type gas accuse high temperature pulse valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520983847.6U CN205190773U (en) | 2015-12-01 | 2015-12-01 | Disconnect -type gas accuse high temperature pulse valve |
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| CN205190773U true CN205190773U (en) | 2016-04-27 |
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| CN201520983847.6U Active CN205190773U (en) | 2015-12-01 | 2015-12-01 | Disconnect -type gas accuse high temperature pulse valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443770A (en) * | 2015-12-01 | 2016-03-30 | 中国重型机械研究院股份公司 | Separation type gas-control high-temperature pulse valve |
| CN109091973A (en) * | 2018-09-30 | 2018-12-28 | 靳瑞 | A kind of filter cylinder automatically cleaning dust treatment device |
-
2015
- 2015-12-01 CN CN201520983847.6U patent/CN205190773U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443770A (en) * | 2015-12-01 | 2016-03-30 | 中国重型机械研究院股份公司 | Separation type gas-control high-temperature pulse valve |
| CN109091973A (en) * | 2018-09-30 | 2018-12-28 | 靳瑞 | A kind of filter cylinder automatically cleaning dust treatment device |
| CN109091973B (en) * | 2018-09-30 | 2020-10-13 | 苏州聚慧邦新材料科技有限公司 | Filter cylinder self-cleaning dust treatment device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |