CN205618749U - Large -flow safety valve - Google Patents
Large -flow safety valve Download PDFInfo
- Publication number
- CN205618749U CN205618749U CN201620427725.3U CN201620427725U CN205618749U CN 205618749 U CN205618749 U CN 205618749U CN 201620427725 U CN201620427725 U CN 201620427725U CN 205618749 U CN205618749 U CN 205618749U
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- CN
- China
- Prior art keywords
- valve
- spool
- installation cavity
- flow safety
- safety valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a large -flow safety valve, characterized by, including case, reset assembly, valve barrel and valve casing, the one end of valve casing is equipped with the installation cavity that is used for placing valve barrel and case, and the other end is equipped with the holding chamber that is used for placing reset assembly, and the middle part still is equipped with the slide opening in intercommunication installation cavity and holding chamber, the valve barrel is provided with the inlet towards the outside one end of installation cavity, and the other end is equipped with the sliding chamber with the inlet intercommunication, be equipped with at least one outage on the inner wall of installation cavity, the one end of case is arranged in the sliding chamber of valve barrel, and the other end is arranged in the slide opening of valve casing to can do the reciprocating sliding along sliding chamber, slide opening, the case is equipped with the feed liquor chamber in its one end that is located valve barrel sliding chamber, be equipped with two rows of pressure release holes of following the circumferencial direction setting in feed liquor chamber along its circumferencial direction on the feed liquor intracavity wall, the two large -space that excrete to press holes are less than or equal to the internal diameter of outage, two drain the pressure hole is crisscross the setting. The utility model has the characteristics of the pressure release is effectual.
Description
Technical field
This utility model relates to a kind of valve, more specifically, it relates to a kind of high-flow safety valve.
Background technology
High-flow safety valve is a kind of safeguard protection valve; its opening and closing element is in normally off by under External Force Acting; when the pressure medium in equipment or pipeline raises, automatically turning on when exceeding setting, in preventing pipeline or equipment by discharge medium outside system, pressure medium exceedes specified value.High-flow safety valve is mainly used in the protection of various pressure system, controls pressure and is less than setting, personal safety and equipment have been run important protective effect.Notification number is the Chinese patent of CN 202039871 U, discloses a kind of high-flow safety valve, have structure more simplify, good stability, assemble and overhaul the most convenient.But, its in actual use, spool may be transported, and causes relief hole the most corresponding with outage, cause cannot pressure release situation occur.
Utility model content
The deficiency existed for prior art, the purpose of this utility model is to provide a kind of high-flow safety valve, has the advantages that pressure release is effective.
For achieving the above object, this utility model provides following technical scheme:
A kind of high-flow safety valve, including spool, reset assembly, valve pocket and valve casing；One end of described valve casing is provided with the installation cavity for placing valve pocket and spool, and the other end is provided with the containing cavity for placing reset assembly, and middle part is additionally provided with connection installation cavity and the slide opening of containing cavity；Described valve pocket is provided with inlet towards the one end outside installation cavity, and the other end is provided with the sliding chamber connected with inlet；The inwall of described installation cavity is provided with at least one outage；One end of described spool is positioned in the sliding chamber of valve pocket, and the other end is positioned in the slide opening of valve casing, and can reciprocatingly slide along sliding chamber, slide opening；Described spool is provided with admission chamber in its one end being positioned at the sliding chamber of valve pocket, and described admission chamber inwall is provided with two rows relief hole along the circumferencial direction setting of admission chamber along its circumferencial direction；The maximum spacing of two row's relief holes is less than or equal to the internal diameter of outage；Two row's relief holes are in being crisscross arranged.
Further, the outer wall of described spool is provided with limited location snap ring；The spacing dogging shoulder coordinated with snap ring it is provided with on the inwall in described sliding chamber.
Further, described reset assembly includes spring base, back-moving spring；Described back-moving spring is sheathed on spring base；Described spring base is under the effect of back-moving spring, and its one end keeps conflicting with spool all the time.
Further, described containing cavity is provided with away from one end of slide opening and runs through valve casing, and inwall is provided with internal threaded regions；Threaded in described internal threaded regions have set screw；The end of described back-moving spring and set screw are positioned at one end of containing cavity and conflict all the time.
Further, described valve casing is arranged with dust cover away from one end of valve pocket.
Further, it is provided with sealing ring in described slide opening, sliding chamber and installation cavity.
Further, one end that described spring base and spool are conflicted is provided with the projection of circular arc.
Further, the outer wall of described set screw is provided with the axially vertical installing hole with set screw；It is provided with elastic cylindrical pin in described installing hole；The inwall of described containing cavity is provided with the storage tank that the end for spring cylindrical pin is stretched into.
Compared with prior art, the utility model has the advantages that:
1, pressure release is effective, and two row's relief holes are circumferentially distributed, and interlaced setting；That can effectively avoid causing because spool transhipment cannot the problem of pressure release；
2, good stability, limited location snap ring cooperates with spacing dogging shoulder, is limited the sliding distance of spool, it is to avoid when fluid pressure is excessive, and the distance that spool slides is too much, thus cause relief hole axially cannot be corresponding with outage situation occur.
3, there is regulatory function, it is possible to by the set screw regulation back-moving spring elastic force to spring base, thus adjusting pressure release valve value.
Accompanying drawing explanation
Fig. 1 is the sectional view of high-flow safety valve of the present utility model.
Reference: 1, spool；11, admission chamber；12, relief hole；2, valve pocket；21, inlet；22, chamber is slided；3, valve casing；31, installation cavity；32, containing cavity；33, slide opening；34, storage tank；35, liquid outlet；41, spring base；411, protruding；42, back-moving spring；5, limited location snap ring；6, spacing dogging shoulder；7, set screw；8, dust cover；9, elastic cylindrical pin；10, sealing ring.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited only to this.
A kind of high-flow safety valve, including spool 1, reset assembly, valve pocket 2 and valve casing 3；One end of valve casing 3 is provided with the installation cavity 31 for placing valve pocket 2 and spool 1, and the other end is provided with the containing cavity 32 for placing reset assembly, and middle part is additionally provided with connection installation cavity 31 and the slide opening 33 of containing cavity 32；Valve pocket 2 is provided with inlet 21 towards the one end outside installation cavity 31, and the other end is provided with the sliding chamber 22 connected with inlet 21；The inwall of installation cavity 31 is provided with at least one outage；One end of spool 1 is positioned in the sliding chamber 22 of valve pocket 2, and the other end is positioned in the slide opening 33 of valve casing 3, and can reciprocatingly slide along sliding chamber 22, slide opening 33；Spool 1 is provided with admission chamber 11 in its one end being positioned at the sliding chamber 22 of valve pocket 2, and admission chamber 11 inwall is provided with two rows relief hole 12 along the circumferencial direction setting of admission chamber 11 along its circumferencial direction；The maximum spacing of two row's relief holes 12 is less than or equal to the internal diameter of outage；Two row's relief holes 12 are in being crisscross arranged.
In the present embodiment, reset assembly includes spring base 41, back-moving spring 42；Back-moving spring 42 is sheathed on spring base 41；Spring base 41 is under the effect of back-moving spring 42, and its one end keeps conflicting with spool 1 all the time.
It addition, be provided with sealing ring 10 in slide opening 33, sliding chamber 22 and installation cavity 31, to play preferable insulating effect, thus avoid fluid seepage.
It addition, one end that spring base 41 and spool 1 are conflicted is provided with the projection 411 of circular arc；This projection 411 can improve the impact resistance of spring base 41, in the case of big-flow high-pressure, it is also possible to reliablely and stablely works.
The operation principle of the present embodiment is:
With reference to Fig. 1, when inlet 21 is passed through liquid, spool 1 is impacted by liquid so that it is slide on the right side of slide opening 33；And spring base 41 is by the compressing of back-moving spring 42, move on the left of slide opening 33, and inconsistent with spool 1；If the force value of liquid is in normal range, then spring base 41 is to the motive force of spool 1 more than the liquid impulsive force to spool 1, and now relief hole 12 is sealed；When the force value of liquid is more than normal range, then spring base 41 is to the motive force of spool 1 less than the liquid impulsive force to spool 1, and now spool 1 slides to the right, until relief hole 12 is opened, liquid is flowed into installation cavity 31 from relief hole 12, and discharges from liquid outlet 35.
Embodiment two:
A kind of high-flow safety valve based on embodiment one, the outer wall of spool 1 is provided with limited location snap ring 5；It is provided with, on the inwall in sliding chamber 22, the spacing dogging shoulder 6 coordinated with snap ring.
Containing cavity 32 is provided with away from one end of slide opening 33 and runs through valve casing 3, and inwall is provided with internal threaded regions；Threaded in internal threaded regions have set screw 7；Conflict all the time in one end that the end of back-moving spring 42 is positioned at containing cavity 32 with set screw 7.Valve casing 3 is arranged with dust cover 8 away from one end of valve pocket 2, it is to avoid dust enters containing cavity 32.Pass through arrangement above, it is only necessary to regulate the position of this set screw 7, it becomes possible to the threshold value of the vent pressure of regulation high-flow safety valve.
In the present embodiment, the outer wall of set screw 7 is provided with the axially vertical installing hole with set screw 7, is provided with elastic cylindrical pin 9 in installing hole, and the inwall of containing cavity 32 is provided with the storage tank 34 that the end for spring cylindrical pin is stretched into.By arranging this elastic cylindrical pin 9, the regulation higher limit of set screw 7 can be defined, it is to avoid the screw-in containing cavity 32 that set screw 7 is undue, cause vent pressure threshold value too high.
Claims (8)
1. a high-flow safety valve, is characterized in that, including spool (1), reset assembly, valve pocket (2) and valve casing (3)；One end of described valve casing (3) is provided with the installation cavity (31) for placing valve pocket (2) and spool (1), the other end is provided with the containing cavity (32) for placing reset assembly, and middle part is additionally provided with connection installation cavity (31) and the slide opening (33) of containing cavity (32)；Described valve pocket (2) is provided with inlet (21) towards one end that installation cavity (31) is outside, and the other end is provided with the sliding chamber (22) connected with inlet (21)；The inwall of described installation cavity (31) is provided with at least one outage；One end of described spool (1) is positioned in the sliding chamber (22) of valve pocket (2), the other end is positioned in the slide opening (33) of valve casing (3), and can reciprocatingly slide along sliding chamber (22), slide opening (33)；Described spool (1) is provided with admission chamber (11) in its one end being positioned at the sliding chamber (22) of valve pocket (2), and described admission chamber (11) inwall is provided with two rows relief hole (12) along the circumferencial direction setting of admission chamber (11) along its circumferencial direction；The maximum spacing of two row's relief holes (12) is less than or equal to the internal diameter of outage；Two row's relief holes (12) are in being crisscross arranged.
High-flow safety valve the most according to claim 1, is characterized in that, the outer wall of described spool (1) is provided with limited location snap ring (5)；The spacing dogging shoulder (6) coordinated with snap ring it is provided with on the inwall of described sliding chamber (22).
High-flow safety valve the most according to claim 1, is characterized in that, described reset assembly includes spring base (41), back-moving spring (42)；Described back-moving spring (42) is sheathed on spring base (41)；Described spring base (41) is under the effect of back-moving spring (42), and its one end keeps conflicting with spool (1) all the time.
High-flow safety valve the most according to claim 2, is characterized in that, described containing cavity (32) runs through valve casing (3) away from one end of slide opening (33), and inwall is provided with internal threaded regions；Threaded in described internal threaded regions have set screw (7)；Conflict all the time in one end that the end of described back-moving spring (42) is positioned at containing cavity (32) with set screw (7).
High-flow safety valve the most according to claim 4, is characterized in that, described valve casing (3) is arranged with dust cover (8) away from one end of valve pocket (2).
High-flow safety valve the most according to claim 1, is characterized in that, is provided with sealing ring (10) in described slide opening (33), sliding chamber (22) and installation cavity (31).
High-flow safety valve the most according to claim 3, is characterized in that, one end that described spring base (41) and spool (1) are conflicted is provided with the projection (411) of circular arc.
High-flow safety valve the most according to claim 4, is characterized in that, the outer wall of described set screw (7) is provided with the axially vertical installing hole with set screw (7)；Elastic cylindrical pin (9) it is provided with in described installing hole；The inwall of described containing cavity (32) is provided with the storage tank (34) that the end for spring cylindrical pin (9) is stretched into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620427725.3U CN205618749U (en) | 2016-05-12 | 2016-05-12 | Large -flow safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620427725.3U CN205618749U (en) | 2016-05-12 | 2016-05-12 | Large -flow safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205618749U true CN205618749U (en) | 2016-10-05 |
Family
ID=57026223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620427725.3U Expired - Fee Related CN205618749U (en) | 2016-05-12 | 2016-05-12 | Large -flow safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205618749U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387144A (en) * | 2017-09-21 | 2017-11-24 | 鸿大智能机械有限公司 | The core assembly of safety valve |
| CN107401416A (en) * | 2017-09-21 | 2017-11-28 | 鸿大智能机械有限公司 | Safety valve |
| CN107503785A (en) * | 2017-09-21 | 2017-12-22 | 鸿大智能机械有限公司 | The core assembly of safety valve |
| CN107503783A (en) * | 2017-09-21 | 2017-12-22 | 鸿大智能机械有限公司 | The valve element of safety valve |
-
2016
- 2016-05-12 CN CN201620427725.3U patent/CN205618749U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387144A (en) * | 2017-09-21 | 2017-11-24 | 鸿大智能机械有限公司 | The core assembly of safety valve |
| CN107401416A (en) * | 2017-09-21 | 2017-11-28 | 鸿大智能机械有限公司 | Safety valve |
| CN107503785A (en) * | 2017-09-21 | 2017-12-22 | 鸿大智能机械有限公司 | The core assembly of safety valve |
| CN107503783A (en) * | 2017-09-21 | 2017-12-22 | 鸿大智能机械有限公司 | The valve element of safety valve |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161005 Termination date: 20210512 |