CN101576170B - Safety valve - Google Patents
Safety valve Download PDFInfo
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- CN101576170B CN101576170B CN2008102074470A CN200810207447A CN101576170B CN 101576170 B CN101576170 B CN 101576170B CN 2008102074470 A CN2008102074470 A CN 2008102074470A CN 200810207447 A CN200810207447 A CN 200810207447A CN 101576170 B CN101576170 B CN 101576170B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses a safety valve. A valve body of the safety valve is provided with an oil port A, an oil port B, an oil port P, an oil port T and two electromagnetic switches, wherein the inside of the valve body is provided with a valve cavity communicated with the oil port A, the oil port B, the oil port P and the oil port T; and the valve cavity is provided with two valve cores inside, and under four different power on-off conditions of the two electromagnetic switches, the two valve cores can move in the valve cavity and optionally realize four modes: (1) the oil port A is communicated with the oil port P, and the oil port B is communicated with the oil port T; (2) the oil port A is power-off, while the oil port B, the oil port T and oil port P are communicated; (3) the oil portB is power-off, while the oil port A, the oil port T and the oil port P are communicated; and (4) the oil port A is communicated with the oil port T, while the oil port B is communicated with the oil port P. The safety valve can ensure the safety; and compared with the safety valve in the prior art, the safety valve has the advantages of simple structure, small volume and easy processing, and red uces the manufacturing cost greatly.
Description
Technical field
The present invention relates to a kind of valve, relate in particular to a kind of safety valve that is used for the safety system of wind power plant.
Background technique
Safety valve plays a part to guarantee safety in wind-power generating system, as shown in Figure 1, original state, hydraulic fluid port A and hydraulic fluid port P communicate, hydraulic fluid port B and hydraulic fluid port T communicate; Two magnetic switch a1, a2 all under the electric situation, hydraulic fluid port A and hydraulic fluid port T communicate, hydraulic fluid port B and hydraulic fluid port P communicate; And only get under the electric situation at magnetic switch a1 or magnetic switch a2, hydraulic fluid port A or hydraulic fluid port B are blocked, thereby guarantee not produce misoperation, play the effect that guarantees safety.
At present, the safety valve that Wan Lefu company produces is composed in parallel by two two-position three way ball valves as shown in Figure 2.Though this safety valve that Wan Lefu company produces can realize guaranteeing safe effect well, exist complex structure, volume big, the shortcoming that difficulty of processing is big causes manufacture cost very high.
Summary of the invention
Technical problem to be solved by this invention provide a kind of simple in structure, volume is little, the safety valve of easy processing, to overcome the shortcoming that prior art exists.
In order to solve the problems of the technologies described above, the present invention adopts following technological scheme:
A kind of safety valve, it is characterized in that: have hydraulic fluid port A on the valve body, hydraulic fluid port B, hydraulic fluid port P, hydraulic fluid port T and two magnetic switch, have in the valve body and hydraulic fluid port A, hydraulic fluid port B, hydraulic fluid port P, the valve pocket that hydraulic fluid port T is communicated with, being provided with under four kinds of different power on/off situations of two magnetic switch in valve pocket motion in the valve pocket and realizing that selectively 1. hydraulic fluid port A and hydraulic fluid port P communicate, hydraulic fluid port B and hydraulic fluid port T communicate, 2. hydraulic fluid port A disconnects, hydraulic fluid port B, hydraulic fluid port T and hydraulic fluid port P communicate, 3. hydraulic fluid port B disconnects, hydraulic fluid port A, hydraulic fluid port T and hydraulic fluid port P communicate, 4. hydraulic fluid port A mouth and hydraulic fluid port T communicate, communicate two spools of four kinds of patterns of hydraulic fluid port B and hydraulic fluid port P.
Described hydraulic fluid port A, hydraulic fluid port B, hydraulic fluid port T is positioned at valve body one side, hydraulic fluid port P is positioned at the valve body opposite side, hydraulic fluid port T is positioned in the middle of hydraulic fluid port A and the hydraulic fluid port B, valve pocket is divided into uuper valve chamber and the lower valve chamber that communicates, uuper valve chamber has the T mouth valve pocket of corresponding hydraulic fluid port T again, lower valve chamber has the P mouth valve pocket of corresponding hydraulic fluid port P again, described one of them spool is positioned at uuper valve chamber, have and be positioned at the valve core head that T mouth valve pocket is selectively blocked the left port or the right port of T mouth valve pocket, described another spool is positioned at lower valve chamber, has to be positioned at the valve core head that P mouth valve pocket is selectively blocked P mouth valve pocket left port or right port.
Described two spools are revolution build spool, and described uuper valve chamber and lower valve chamber are the revolution build valve pocket corresponding with spool.
Adopt above-mentioned technology, safety valve of the present invention can realize guaranteeing safe effect, but relatively the safety valve of prior art have simple in structure, volume is little, the advantage of easy processing, has greatly reduced manufacture cost.
Description of drawings
The present invention is described in detail below in conjunction with the drawings and specific embodiments:
Fig. 1 is the principle assumption diagram of safety valve;
Fig. 2 is the principle assumption diagram of the safety valve of prior art;
Hydraulic fluid port was communicated with schematic representation when Fig. 3 was in the 1st kind of pattern for valve of the present invention;
Hydraulic fluid port was communicated with schematic representation when Fig. 4 was in the 2nd kind of pattern for valve of the present invention;
Hydraulic fluid port was communicated with schematic representation when Fig. 5 was in the 3rd kind of pattern for valve of the present invention;
Hydraulic fluid port was communicated with schematic representation when Fig. 6 was in the 4th kind of pattern for valve of the present invention.
Embodiment
As shown in Figure 3, safety valve of the present invention comprises valve body 100, two 200,300, two magnetic switch 400,500 of spool.
Wherein valve body 100 upper-end surfaces have hydraulic fluid port A, hydraulic fluid port B, hydraulic fluid port T, and hydraulic fluid port T is between hydraulic fluid port A and hydraulic fluid port B; The lower end surface has hydraulic fluid port P.Valve body 100 inside also have the valve pocket that is communicated with above-mentioned hydraulic fluid port A, hydraulic fluid port B, hydraulic fluid port T, hydraulic fluid port P, and valve pocket is partitioned into uuper valve chamber 110 and the lower valve chamber 120 that is interconnected.Uuper valve chamber 110 and lower valve chamber 120 are the valve pocket of revolution build.Be separated with the T mouth valve pocket 111 of corresponding hydraulic fluid port T between going back in the uuper valve chamber 110, T mouth valve pocket left side is a left port 112, right lateral position right port 113; Be separated with the P mouth valve pocket 121 of corresponding hydraulic fluid port P between going back in the lower valve chamber 120, P mouth valve pocket 121 also is that the left side is left port 122, and the right side is a right port 123.
Two spools 200,300 are same structure, for revolution build spool, lay respectively in uuper valve chamber 110 and the lower valve chamber 120, have the valve core head 210,310 that lays respectively in T mouth valve pocket 111 and the P mouth valve pocket 121 separately.Two spools 200,300 can make valve core head 210,310 selectively block left port or right port in uuper valve chamber 110, lower valve chamber 120 side-to-side movements.
Two magnetic switch 400,500 are installed in the outside of valve body 100, link to each other respectively with two spools 200,300, dead electricity or under the electric situation, drive spool 200,300 and move to the left or to the right.
More than be exactly the structure of safety valve of the present invention, four kinds of different power on/off situations of corresponding two magnetic switch of this safety valve have four kinds of different hydraulic fluid ports and are communicated with pattern, and are specific as follows:
As shown in Figure 3, in original state, promptly under two magnetic switch 400,500 equal dead electricity situations, the valve core head 210 of spool 200 is blocked the left port 112 of T mouth valve pocket 111, and the spool of spool 300 saturating 310 is blocked the right port 123 of P mouth valve pocket 121.At this moment, hydraulic fluid port A and hydraulic fluid port P communicate, hydraulic fluid port B and hydraulic fluid port T communicate.
As shown in Figure 4, when magnetic switch 400 dead electricity, magnetic switch 500 under the electric situation, the valve core head 210 of spool 200 is blocked the left port 112 of T mouth valve pocket 111, the spool of spool 300 saturating 310 is blocked the left port 122 of P mouth valve pocket 121.At this moment, hydraulic fluid port A disconnects, and hydraulic fluid port B, hydraulic fluid port T and hydraulic fluid port P communicate.
As shown in Figure 5, when magnetic switch 400 under electric, the magnetic switch 500 dead electricity situations, the valve core head 210 of spool 200 is blocked the right port 113 of T mouth valve pocket 111, the spool of spool 300 saturating 310 is blocked the right port 123 of P mouth valve pocket 121.At this moment, hydraulic fluid port B disconnects, and hydraulic fluid port A, hydraulic fluid port T and hydraulic fluid port P communicate.
As shown in Figure 6, when two magnetic switch 400,500 all under the electric situation, the valve core head 210 of spool 200 is blocked the right port 113 of T mouth valve pocket 111, the spool of spool 300 saturating 310 is blocked the left port 122 of P mouth valve pocket 121.At this moment, hydraulic fluid port A mouth and hydraulic fluid port T communicate, and hydraulic fluid port B and hydraulic fluid port P communicate.
From above-mentioned four kinds of patterns, as can be seen, have only when magnetic switch 400 and magnetic switch 500 simultaneously under the electric situation, hydraulic fluid port A mouth and hydraulic fluid port T just communicate, hydraulic fluid port B and hydraulic fluid port P just communicate, and could structure start three security modules in the wind power system; Independent that electric situation security module can not produce action when magnetic switch 400 or magnetic switch 500, so just can avoid because system is unstable or the misoperation that abnormal conditions such as vibrations produce safety system generation interference takes place.
Safety valve of the present invention not only can realize guaranteeing safe effect, and owing to adopt a valve body and two spools to make up, such structure is very simple, and volume also can be done very for a short time, and valve pocket and spool all are the revolution builds, are very easy to processing again.Therefore, the relative safety valve of prior art, that the present invention has is simple in structure, volume is little, the advantage of easy processing, has greatly reduced manufacture cost.
But, one skilled in the art would recognize that above-mentioned embodiment is exemplary, be to be the restriction that this patent is comprised scope in order better to make those skilled in the art can understand this patent, can not to be interpreted as; So long as according to spirit that this patent discloses done anyly be equal to change or modify, all fall into the scope that this patent comprises.
Claims (2)
1. safety valve, it is characterized in that: have hydraulic fluid port A on the valve body, hydraulic fluid port B, hydraulic fluid port P, hydraulic fluid port T and two magnetic switch, have in the valve body and hydraulic fluid port A, hydraulic fluid port B, hydraulic fluid port P, the valve pocket that hydraulic fluid port T is communicated with, being provided with under four kinds of different power on/off situations of two magnetic switch in valve pocket motion in the valve pocket and realizing that selectively 1. hydraulic fluid port A and hydraulic fluid port P communicate, hydraulic fluid port B and hydraulic fluid port T communicate, 2. hydraulic fluid port A disconnects, hydraulic fluid port B, hydraulic fluid port T and hydraulic fluid port P communicate, 3. hydraulic fluid port B disconnects, hydraulic fluid port A, hydraulic fluid port T and hydraulic fluid port P communicate, 4. hydraulic fluid port A mouth and hydraulic fluid port T communicate, communicate two spools of four kinds of patterns of hydraulic fluid port B and hydraulic fluid port P; Described hydraulic fluid port A, hydraulic fluid port B, hydraulic fluid port T is positioned at valve body one side, hydraulic fluid port P is positioned at the valve body opposite side, hydraulic fluid port T is positioned in the middle of hydraulic fluid port A and the hydraulic fluid port B, valve pocket is divided into uuper valve chamber and the lower valve chamber that communicates, uuper valve chamber has the T mouth valve pocket of corresponding hydraulic fluid port T again, lower valve chamber has the P mouth valve pocket of corresponding hydraulic fluid port P again, described one of them spool is positioned at uuper valve chamber, have and be positioned at the valve core head that T mouth valve pocket is selectively blocked the left port or the right port of T mouth valve pocket, described another spool is positioned at lower valve chamber, has to be positioned at the valve core head that P mouth valve pocket is selectively blocked P mouth valve pocket left port or right port.
2. safety valve according to claim 1 is characterized in that: described two spools are revolution build spool, and described uuper valve chamber and lower valve chamber are the revolution build valve pocket corresponding with spool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102074470A CN101576170B (en) | 2008-12-19 | 2008-12-19 | Safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102074470A CN101576170B (en) | 2008-12-19 | 2008-12-19 | Safety valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101576170A CN101576170A (en) | 2009-11-11 |
| CN101576170B true CN101576170B (en) | 2011-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102074470A Active CN101576170B (en) | 2008-12-19 | 2008-12-19 | Safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101576170B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718354B (en) * | 2009-12-04 | 2011-12-28 | 中山市祥丰瓦斯器材制品有限公司 | Automatic temperature-control gas safety valve |
| CN102556108B (en) * | 2012-01-20 | 2015-05-13 | 北京世纪东方国铁科技股份有限公司 | Electromagnetic valve for train tail device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3910301A (en) * | 1974-04-08 | 1975-10-07 | Kuss & Co R L | Attitude sensitive fuel valve |
| CN1372089A (en) * | 2001-02-28 | 2002-10-02 | 浙江三花集团有限公司 | Bistable four-way electromagnetic reversing valve |
| CN201344288Y (en) * | 2008-12-19 | 2009-11-11 | 上海电气液压气动有限公司 | Dual-electromagnet two-position four-way ball valve |
-
2008
- 2008-12-19 CN CN2008102074470A patent/CN101576170B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3910301A (en) * | 1974-04-08 | 1975-10-07 | Kuss & Co R L | Attitude sensitive fuel valve |
| CN1372089A (en) * | 2001-02-28 | 2002-10-02 | 浙江三花集团有限公司 | Bistable four-way electromagnetic reversing valve |
| CN201344288Y (en) * | 2008-12-19 | 2009-11-11 | 上海电气液压气动有限公司 | Dual-electromagnet two-position four-way ball valve |
Non-Patent Citations (1)
| Title |
|---|
| JP昭57-15163A 1982.01.26 |
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| CN101576170A (en) | 2009-11-11 |
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