CN102563203A - Pressure reducing valve and temperature-reducing and pressure-reducing device - Google Patents
Pressure reducing valve and temperature-reducing and pressure-reducing device Download PDFInfo
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- CN102563203A CN102563203A CN2012100586682A CN201210058668A CN102563203A CN 102563203 A CN102563203 A CN 102563203A CN 2012100586682 A CN2012100586682 A CN 2012100586682A CN 201210058668 A CN201210058668 A CN 201210058668A CN 102563203 A CN102563203 A CN 102563203A
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- valve
- flap
- reducing
- reduction valve
- guide cover
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Abstract
The invention provides a pressure reducing valve and a temperature-reducing and pressure-reducing device. The pressure reducing valve comprises a valve body, valve seats, a valve flap and a valve rod and also comprises a guide cover, wherein the valve seats are fixedly connected with the valve body; the valve flap moves in the valve seat to change the flow areas of the valve seats; the valve rod is connected with the valve flap; the guide cover is sheathed on the valve flap; the two ends of the guide cover abut against the inner wall of the valve body; the guide cover is provided with a flow guiding hole, and is sheathed on the valve flap; the two ends of the guide cover abut against the inner wall of the valve body respectively; and the actuating mechanism drives the valve rod connected with the actuating mechanism to move and further drive the valve flap to move in the valve seats and the guide cover. The invention has the advantages that the radial movement of the valve flap is effectively limited by adopting a mode that the guide cover is sheathed on the valve flap, the valve flap finishes the axial movement better, and the unnecessary radial movement of the valve flap is limited, so that the vibration of the valve flap is reduced, and further the noise is reduced to enable the working environment to be quiet; and steam flowing out of the valve seats flows out of the flow guiding hole arranged in a guide sleeve, is guided out of the flow guiding hole, and is also throttled simultaneously, so that the action of secondary pressure reduction is achieved.
Description
Technical field
The present invention relates to the boiler technology field, more particularly, relate to a kind of reduction valve and reducing-and-cooling plant.
Background technique
All used the boiler of big capacity, high parameter, variation and automation at industrial fields such as coal system oil and fired power generating unit, the steam need that boiler produces handled the requirement of satisfying process system through reducing-and-cooling plant.Core component is a reduction valve in the reducing-and-cooling plant, and traditional relief valve comprises component such as valve body 1, valve seat 2, flap 3, round pin 4 and valve rod 5.Traditional relief valve relies on actuator to drive 5 motions of coupled valve rod, and valve rod 5 drives with its flap 3 through round pin 4 fixed-link and in valve seat 2, moves, and relies on flap 3 in valve seat 2, to move and changes the purpose that circulation area reaches expenditure and pressure.Traditional relief valve relies on actuator to provide power to realize when accomplishing switching motion; Actuator can produce certain vibrations when power is provided; These vibrations can make the valve rod 5 that links to each other with actuator directly upwards produce unnecessary motion at it, cause having very high noise generation thereby produce collision with parts around it when upwards move in valve rod 5 footpath.
In sum, how a kind of reduction valve and reducing-and-cooling plant being provided, reducing the vibrations of flap and then reduce noise to make working environment quiet, is present those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of reduction valve and reducing-and-cooling plant, reduce the vibrations of flap and then reduce noise to make working environment quiet.
For realizing above-mentioned purpose, the present invention provides following technological scheme:
A kind of reduction valve; Comprise valve body; The valve seat that is fixedly connected with said valve body, in said valve seat, move the flap and the valve rod that links to each other with said flap that changes its circulation area; Also comprise the guide housing that is set on the said flap, said guide housing two ends offset with said valve interior wall respectively, and offer pod apertures on the said guide housing.
Preferably, said valve body forging molding.
Preferably, said valve rod and said flap are integral structure.
Preferably, the basic alloy of said flap week surface build-up welding Ni.
Preferably, the surface build-up welding Ni base alloy that said guide housing contacts with said flap, the surface build-up welding Ni base alloy of said valve seat and the sealing of said flap.
Preferably, said valve seat quantity is one.
Preferably, the vertical layout of said reduction valve import with its outlet and with said flap in same plane.
A kind of reducing-and-cooling plant comprises reduction valve and drives the actuator that said reduction valve opens and closes, said reduction valve such as above-mentioned in any said reduction valve.
Preferably, said actuator is electric actuator, hydraulic actuator or air pressure actuator.
Reduction valve provided by the invention and reducing-and-cooling plant; Comprise valve body; Move the flap and the valve rod that links to each other with flap that changes its circulation area with the valve seat of valve body fixed connection, in valve seat; Also comprise the guide housing that is set on the flap, the guide housing two ends offset with valve interior wall respectively, and offer pod apertures on the guide housing.Guide housing is set on the flap, and the two ends of guide housing offset with the inwall of valve body respectively, and actuator drives the flap that coupled stem movement and then drive link to each other with valve rod and in valve seat and guide housing, moves.The present invention is employed in the mode that is arranged with guide housing on the flap and comes to limit effectively flap and make it accomplish its motion on axially better in its motion that directly makes progress; Reduced the vibrations of flap thereby limited directly make progress unnecessary motion of flap, and then reduced noise and make working environment quiet.The pod apertures of offering from guide sleeve through the steam of valve seat outflow flows out, and also steam is carried out the effect that the secondary decompression is played in throttling when pod apertures derives steam.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technological scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the traditional relief valve structural representation;
The structure of relief pressure valve schematic representation that Fig. 2 provides for the embodiment of the invention.
Wherein, among Fig. 1-Fig. 2:
Embodiment
A kind of reduction valve and reducing-and-cooling plant that the embodiment of the invention provides reduce the vibrations of flap and then reduce noise to make working environment quiet.
To combine the accompanying drawing in the embodiment of the invention below, the technological scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment among the present invention, those of ordinary skills belong to protection domain of the present invention not making all other embodiments that obtained under the creative work prerequisite.
Shown in accompanying drawing 2, the structure of relief pressure valve schematic representation that Fig. 2 provides for the embodiment of the invention.
Reduction valve that the embodiment of the invention provides and reducing-and-cooling plant; Comprise valve body 21; Move the flap 25 and the valve rod 26 that links to each other with flap 25 that changes its circulation area with the valve seat 24 of valve body 21 fixed connections, in valve seat 24; Also comprise the guide housing 22 that is set on the flap 25, guide housing 22 two ends offset with valve body 21 inwalls respectively, and offer pod apertures 23 on the guide housing 22.
Above-mentioned guide housing 22 is set on the above-mentioned flap 25; And the two ends of guide housing 22 offset with the inwall of above-mentioned valve body 21 respectively, move in above-mentioned valve seat 24 and above-mentioned guide housing 22 when actuator drives flap 25 that coupled above-mentioned valve rod 26 motions and then drive link to each other with valve rod 26.The embodiment of the invention is employed in the mode that is arranged with above-mentioned guide housing 22 on the above-mentioned flap 25 and limits effectively above-mentioned flap 25 and make it accomplish its motion on axially better in its motion that directly makes progress; Reduced the vibrations of above-mentioned flap 25 thereby limited the unnecessary motion that makes progress of above-mentioned flap 25 footpaths, and then reduced noise and make working environment quiet.The pod apertures of offering from above-mentioned guide sleeve 22 through the steam of valve seat 24 outflows 23 flows out, and also steam is carried out the effect that the secondary decompression is played in throttling when pod apertures 23 derives steam.
Wherein, For above-mentioned valve rod 26 is moved on axially along it better; The embodiment of the invention also can be arranged with above-mentioned guide housing 22 on valve rod 26, guide sleeve 22 cooperates with above-mentioned valve body 21 makes valve rod 26 reduce moving that it directly makes progress along its axial motion, and then reduces vibrations and reduce noise.
Wherein, can bear bigger impact force for guaranteeing above-mentioned valve body 21, the embodiment of the invention makes it durable in use valve body 21 forging moldings and then self intensity of improving valve body 21.
Wherein, For both being synchronized with the movement to above-mentioned flap 25 transmission of movement of above-mentioned valve rod 26 better; The embodiment of the invention is designed to integral structure with valve rod 26 and flap 25, has guaranteed both coaxalitys like this and then flap 25 is moved in above-mentioned valve seat 24 better to realize the purpose of expenditure and pressure.
Wherein, for guaranteeing its smoothness of moving, the wearing and tearing that minimizing causes because of friction made working surface long-term work guarantee not having leakage effectively when above-mentioned flap 25 moved in above-mentioned valve seat 24 and above-mentioned guide housing 22.The embodiment of the invention can be with flap 25 all surface build-up welding Ni base alloys, the surface build-up welding Ni base alloy that also can simultaneously above-mentioned guide housing 22 and above-mentioned valve seat 24 be contacted with above-mentioned flap 25.The embodiment of the invention is preferentially selected for use flap 25 all surface build-up welding Ni base alloys, the surface build-up welding Ni base alloy that simultaneously above-mentioned guide housing 22 and above-mentioned valve seat 24 is contacted with above-mentioned flap 25.
Wherein, Above-mentioned flap 25 is taper with the face that above-mentioned valve seat 24 is in contact with one another; So also further guarantee its good sealing property, both contact streamlinedly and can control the flow direction of steam well and then steam is rationally distributed to valve seat 24 and the pressure that flap 25 produces, and prolong both working life.
Wherein, leak in order to make above-mentioned flap 25 when contacting realization reduction valve closed condition with above-mentioned valve seat 24, guarantee not have.The embodiment of the invention adopts soft material to be made flap 25, and flap 25 characteristic because of flap 25 soft materials when contacting with valve seat 24 makes it have certain elasticity, when contacting with valve seat 24, can realize sealing effect better and then guarantee not have leaking.
Wherein, be the flow direction and the flow velocity of controlling steam better, the embodiment of the invention adopts a valve seat 24 to cooperate with above-mentioned flap 25 and accomplishes the expenditure and pressure purpose.Thereby only cooperating with a valve seat 24, flap 25 just can guarantee that like this valve seat 24 outflows from then on of all steam have controlled the flow direction of steam effectively.
Wherein, In order to reduce the time that in reduction valve, stops through decompression steam later; The embodiment of the invention with the vertical layout of the import of reduction valve with its outlet and with above-mentioned flap 25 in same plane; The reduction valve outlet directly is communicated with the steam that reduces pressure through above-mentioned valve seat 24, can post-decompression steam directly be derived its time that in reduction valve, stops of minimizing like this.
Wherein, Above-mentioned reduction valve can be used in the reducing-and-cooling plant; Be connected with the actuator power that relies on actuator to provide of reduction valve is controlled the keying of reduction valve in the reducing-and-cooling plant, when reducing-and-cooling plant work, adopts the reduction valve of this structure can reduce vibrations effectively and then reduce noise to make peace and quiet of working environment.
Wherein, above-mentioned actuator can be reliable, quick and accurate electric actuator, hydraulic actuator or air pressure actuator.It is that above-mentioned reduction valve realizes that keying provides power that the embodiment of the invention is preferentially selected electric actuator for use.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the present invention.Multiple modification to these embodiments will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiments shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (9)
1. reduction valve; Comprise valve body (21); Move the flap (25) and the valve rod (26) that links to each other with said flap (25) that changes its circulation area with the valve seat (24) of said valve body (21) fixed connection, in said valve seat (24), it is characterized in that, also comprise the guide housing (22) that is set on the said flap (25); Said guide housing (22) two ends offset with said valve body (21) inwall respectively, and offer pod apertures (23) on the said guide housing (22).
2. reduction valve according to claim 1 is characterized in that, said valve body (21) forging molding.
3. reduction valve according to claim 1 is characterized in that, said valve rod (26) is an integral structure with said flap (25).
4. according to any described reduction valve among the claim 1-3, it is characterized in that all surface build-up welding Ni bases of said flap (25) alloy.
5. according to any described reduction valve among the claim 1-3, it is characterized in that the surface build-up welding Ni base alloy that said guide housing (22) contacts with said flap (25), said valve seat (24) and the basic alloy of the surface build-up welding Ni of said flap (25) sealing.
6. according to any described reduction valve among the claim 1-3, it is characterized in that said valve seat (24) quantity is one.
7. according to any described reduction valve among the claim 1-3, it is characterized in that, the vertical layout of said reduction valve import with its outlet and with said flap (25) in same plane.
8. a reducing-and-cooling plant comprises reduction valve and drives the actuator that said reduction valve opens and closes, and it is characterized in that any said reduction valve among said reduction valve such as the claim 1-7.
9. reducing-and-cooling plant according to claim 8 is characterized in that, said actuator is electric actuator, hydraulic actuator or air pressure actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100586682A CN102563203A (en) | 2012-03-07 | 2012-03-07 | Pressure reducing valve and temperature-reducing and pressure-reducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100586682A CN102563203A (en) | 2012-03-07 | 2012-03-07 | Pressure reducing valve and temperature-reducing and pressure-reducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102563203A true CN102563203A (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100586682A Pending CN102563203A (en) | 2012-03-07 | 2012-03-07 | Pressure reducing valve and temperature-reducing and pressure-reducing device |
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| CN (1) | CN102563203A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286857A (en) * | 2016-10-13 | 2017-01-04 | 李岑文达 | A kind of New-type boiler continuous blowdown regulation valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19615888A1 (en) * | 1996-04-23 | 1997-11-06 | Vetec Ventiltechnik Gmbh | Regulating valve to reduce gas pressure |
| CN101440888A (en) * | 2008-12-30 | 2009-05-27 | 杭州华惠阀门有限公司 | High-temperature high-pressure pressure-reducing valve |
| CN101813207A (en) * | 2010-01-15 | 2010-08-25 | 肖子传 | Water-saving control valve for tap water |
| CN102364172A (en) * | 2011-10-08 | 2012-02-29 | 孙敬东 | Novel sea valve |
| CN202451855U (en) * | 2012-03-07 | 2012-09-26 | 杭州华惠阀门有限公司 | Pressure reducing valve and temperature and pressure reducing device |
-
2012
- 2012-03-07 CN CN2012100586682A patent/CN102563203A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19615888A1 (en) * | 1996-04-23 | 1997-11-06 | Vetec Ventiltechnik Gmbh | Regulating valve to reduce gas pressure |
| CN101440888A (en) * | 2008-12-30 | 2009-05-27 | 杭州华惠阀门有限公司 | High-temperature high-pressure pressure-reducing valve |
| CN101813207A (en) * | 2010-01-15 | 2010-08-25 | 肖子传 | Water-saving control valve for tap water |
| CN102364172A (en) * | 2011-10-08 | 2012-02-29 | 孙敬东 | Novel sea valve |
| CN202451855U (en) * | 2012-03-07 | 2012-09-26 | 杭州华惠阀门有限公司 | Pressure reducing valve and temperature and pressure reducing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286857A (en) * | 2016-10-13 | 2017-01-04 | 李岑文达 | A kind of New-type boiler continuous blowdown regulation valve |
| CN106286857B (en) * | 2016-10-13 | 2019-11-05 | 李岑文达 | A kind of New-type boiler continuous blowdown regulating valve |
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Application publication date: 20120711 |