CN111486237A - Ultrahigh pressure relief valve - Google Patents
Ultrahigh pressure relief valve Download PDFInfo
- Publication number
- CN111486237A CN111486237A CN202010593894.5A CN202010593894A CN111486237A CN 111486237 A CN111486237 A CN 111486237A CN 202010593894 A CN202010593894 A CN 202010593894A CN 111486237 A CN111486237 A CN 111486237A
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- CN
- China
- Prior art keywords
- valve
- rod
- head
- pressure relief
- relief 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/48—Attaching valve members to screw-spindles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
Abstract
The invention relates to an ultrahigh pressure relief valve. The ultrahigh pressure relief valve is characterized in that a valve rod and a rod head are arranged in a valve body of the ultrahigh pressure relief valve, the valve rod and the rod head are detachably connected, a valve block is further arranged in the valve body, the top of the valve block is connected with a gas cavity, a valve rod hole and a gas outlet hole are formed in the gas cavity, a gas inlet hole is formed in the valve block, the rod head is matched with the valve rod hole and the gas inlet hole in structure, and the rod head is in line contact with the gas inlet hole. According to the ultrahigh pressure relief valve, the rod head can be adjusted and replaced at any time according to the use condition, the phenomenon that the whole equipment cannot be used due to the fact that one part is damaged is avoided, and the use cost of the equipment is reduced. The pole head and the pore structure adaptation, and pole head and inlet port line contact are sealed and not arc contact is sealed, and the area of contact of pole head and inlet port reduces, can guarantee the leakproofness between the structure, can reduce the impact force that the pole head received again, reduces the degree of wear of pole head, improves the life of pole head.
Description
Technical Field
The invention belongs to the technical field of pressure relief valve devices, and particularly relates to a pressure relief valve for food ultrahigh pressure processing equipment.
Background
The pressure relief valve is also called a safety valve, can be automatically opened and closed according to the working pressure of the system, and is generally arranged on equipment or a pipeline of a closed system to protect the safety of the system. When the pressure in the equipment or the pipeline exceeds the set pressure of the pressure release valve, the pressure release valve is automatically opened, the medium pressure in the equipment or the pipeline is ensured to be below the set pressure, the equipment and the pipeline are protected, and accidents are prevented.
The working environment of the food cold sterilization equipment requires low temperature and high pressure, the highest pressure can reach 600MPa when water is used as a medium, and a key part of the food cold sterilization equipment is the ultrahigh pressure relief valve. The ultrahigh pressure relief valve adopted in the existing food ultrahigh pressure processing equipment is mostly the pressure relief valve of German MegeSIWET brand, but in the food ultrahigh pressure processing operation, the service life of the pressure relief valve under the low-temperature and high-pressure environment is short, the pressure relief frequency can only reach 2000-4000 times per pressure relief valve, and the pressure relief valve can only be used for 1-2 months according to the working efficiency of the equipment, so that the economic loss is large. And the food ultrahigh pressure processing equipment cannot replace the pressure release valve, so that the whole service life of the food ultrahigh pressure processing equipment is short, and the production cost of food processing is indirectly increased.
Disclosure of Invention
The invention aims to solve the defects that the service life of the ultrahigh pressure relief valve is short and the relief valve cannot be replaced in processing equipment in the prior art, and provides the ultrahigh pressure relief valve which has long working time and can be replaced and used in the equipment.
The invention is realized by the following technical scheme:
the ultrahigh pressure relief valve comprises a valve body and is characterized in that a valve rod and a rod head are arranged in the valve body, the valve rod is detachably connected with the rod head, a valve block is further arranged in the valve body, the top of the valve block is connected with a gas cavity, a valve rod hole and an air outlet hole are formed in the gas cavity, an air inlet hole is formed in the valve block, the rod head is matched with the valve rod hole in a structure mode of being matched with the air inlet hole, and the rod head enters the air inlet hole and is in line contact sealing with the air inlet hole.
Preferably, the end part of the club head is of an isosceles trapezoid structure, and the vertex angle is 115-130 degrees. The pressure tolerance of pole head can be increased to the pole head structure of the apex angle of less value, improves the leakproofness between pole head and the valve block simultaneously, promotes the holistic work efficiency of equipment.
Preferably, the diameter value of the valve block is 2.5-3 times of the length of the top edge of the club head.
Preferably, the club head is sequentially provided with a first sealing ring, an O-shaped ring and a second sealing ring in a connecting manner, the O-shaped rings are arranged on two sides of the club head, and the O-shaped rings are positioned between the first sealing ring and the second sealing ring.
Preferably, a beryllium bronze sealing sleeve is arranged on the outer wall of the club head. The sealing performance between the sealing sleeve and the valve body when the rod head passes in and out can be improved, the sealing sleeve made of beryllium bronze is high in tolerance and long in service life, and the whole service life of the equipment can be prolonged.
Preferably, the valve body comprises a connecting body and a working body, the connecting body is fixedly connected with the hydraulic oil cylinder through a connecting seat, a valve rod is installed in the connecting body, and the end part of the valve rod is connected with an oil cylinder ejector rod; the working body is connected with the connecting body through a supporting seat, a rod head is arranged in the working body, and the rod head is fixedly connected with the other end of the valve rod through the supporting seat.
Preferably, the valve block is arranged in the working body, and the valve block is fixed on the inner wall of the working body through a valve block support.
Preferably, a sealing sleeve pressing cap is installed at the end part of the valve rod close to the supporting seat, and a sealing ring pressing sleeve is installed at the end part of the rod head close to the supporting seat. The setting that the cover was pressed to the seal cover pressure cap and sealing washer can increase the stability that valve rod and pole head are connected, can improve the leakproofness between connector and the working body again.
Preferably, the Rockwell hardness of the rod head is 55-59 HRC, and the Rockwell hardness of the valve block is 33-36 HRC.
The ultrahigh pressure of the invention has at least the following technical effects:
"be equipped with valve rod and pole head in the valve body, the valve rod can be dismantled with the pole head and be connected", and the pole head can adjust the change at any time according to the in service behavior, avoids a part to damage to cause the unable phenomenon of using of whole equipment, has reduced equipment use cost.
The structure of the rod head is matched with the structure of the valve rod hole and the structure of the air inlet hole, and when the rod head enters the air inlet hole, the rod head is in line contact with the air inlet hole for sealing. The club head is matched with the hole structure, the club head is in line contact sealing with the air inlet hole instead of arc contact sealing, the contact area of the club head and the air inlet hole is reduced, the sealing performance between the structures can be ensured, the impact force borne by the club head can be reduced, the abrasion degree of the club head is reduced, and the service life of the club head is prolonged.
The tip of "pole head is the isosceles trapezoid structure, the apex angle is 115 ~ 130 ″, the pole head cooperation of less apex angle rather than the inlet port of structure adaptation, the upper base area of pole head is great, can increase the area of contact of gas and pole head, reduce the pressure that the pole head receives, thereby reduce the impact wear that the pole head caused in the use, the live time of extension pole head, make the lasting operating time of single relief valve reach 10 ten thousand/individual, the part replacement cost has been reduced, economic benefits has been improved indirectly.
Drawings
FIG. 1: the structure schematic diagram of the ultrahigh pressure relief valve is shown;
FIG. 2: the part A in FIG. 1 is an enlarged schematic view;
FIG. 3: the part B in FIG. 1 is an enlarged schematic view;
in the figure: 1-a valve body; 11-a linker; 12-a working body; 13: a valve stem; 14: a club head; 141-a first seal ring; 142-O-ring; 143-a second sealing ring; 144-beryllium bronze seal cartridge; 15-a valve block; 151-inlet holes; 16-a gas chamber; 161-valve stem bore; 162-air outlet holes; 2-a connecting seat; 3-a hydraulic oil cylinder; 31-oil cylinder ejector rod; 4: a supporting seat; 5-valve block support; 6-valve seat pressure plate; 7-sealing a gland pressing cap; 8-pressing and sleeving the sealing ring.
The following description of the present invention will be made with reference to the accompanying drawings for further explanation of the structure of the present invention.
The invention provides an ultrahigh pressure relief valve which is mainly used in a high-pressure environment and is particularly suitable for ultrahigh pressure processing equipment of food. The ultrahigh pressure relief valve has the advantages that the problem that the pressure relief valve cannot be replaced in the existing food ultrahigh pressure processing equipment, the single use times of the pressure relief valve is few, and the service life is short is solved through research and test for more than two years by the applicant, the service life is long, the single use times can reach 10 ten thousand times, the rod head in the ultrahigh pressure relief valve can be detached and replaced, the phenomenon that parts are damaged to cause waste of the whole equipment can be avoided, the working efficiency of the equipment is greatly improved, the production cost is reduced, and the economic benefit is improved.
As shown in fig. 1-3, a valve body 1 of the ultrahigh pressure relief valve is fixedly connected with a hydraulic oil cylinder 3 through a connecting seat 2.
The valve body 1 includes a connecting body 11 and a working body 12. The connecting body 11 is fixedly connected with the hydraulic oil cylinder 3 through the connecting seat 2, a valve rod 13 is installed in the connecting body 11, and the end part of the valve rod 13 is connected with an oil cylinder ejector rod 31. The working body 12 is connected with the connecting body 11 through the supporting seat 4, a rod head 14 is arranged in the working body 12, and the rod head 14 is fixedly connected with the other end of the valve rod 13 through the supporting seat 4.
The working body 12 is also internally provided with a valve block 15, and the valve block 15 is fixed on the inner wall of the working body 12 through a valve block support 5. Valve seat pressure disk 6 is still installed to the 12 outer walls of the working body, valve seat pressure disk 6 and valve block support 5 fixed connection, and valve seat pressure disk 6 fixed connection is on the processing equipment to can further fix the superhigh pressure relief valve, increase the stability of valve body work.
The valve rod 13 and the rod head 14 are of a detachable connection structure, so that the rod head can be adjusted and replaced at any time according to the use condition, the phenomenon that the whole equipment cannot be used due to the fact that one part is damaged is avoided, and the use cost of the equipment is reduced.
The top of the valve block 15 is connected with a gas cavity 16, the gas cavity 16 is provided with a valve rod hole 161 and a gas outlet hole 162, and the gas outlet hole 162 is communicated with external exhaust equipment, such as a water tank. Be equipped with inlet port 151 in the valve block 15, club head 14 and the structure looks adaptation of valve shaft hole 161, inlet port 151, and when club head 14 got into inlet port 151, club head 14 and inlet port 151 line contact were sealed, and the area of contact of club head and inlet port reduces, can guarantee the leakproofness between the structure, can reduce the impact force that the club head received again, reduces the degree of wear of club head, improves the life of club head.
As a preferable structure, the end of head 14 is an isosceles trapezoid structure, and the vertex angle is 115 to 130 °. The pressure tolerance of pole head can be increased to the pole head structure of the apex angle of less value, improves the leakproofness between pole head and the valve block simultaneously, promotes the holistic work efficiency of equipment.
Preferably, the diameter of valve block 15 is 2.5-3 times the length of the top edge of club head 14.
As a preferred construction, beryllium bronze boots 144 are mounted on each side of head 14. The sealing performance between the sealing sleeve and the valve body when the rod head passes in and out can be improved, the sealing sleeve made of beryllium bronze is high in tolerance and long in service life, and the whole service life of the equipment can be prolonged.
Preferably, the first sealing ring 141, the O-ring 142 and the second sealing ring 143 are sequentially connected and mounted in the middle of the club head 14, the two O-rings 142 are mounted on two sides of the club head 14, and the O-rings are located between the first sealing ring 141 and the second sealing ring 143. The first sealing ring and the second sealing ring seal and reinforce the rod head from the periphery of the rod head, and the O-shaped rings on the two sides of the rod head seal and reinforce the gap between the rod head and the sealing sleeve, so that high-pressure gas is prevented from escaping outwards.
Preferably, the end of the valve rod 13 close to the support seat 4 is provided with a sealing gland pressing cap 7, and the end of the rod head 14 close to the support seat 4 is provided with a sealing ring pressing sleeve 8. The setting that the cover was pressed to the seal cover pressure cap and sealing washer can increase the stability that valve rod and pole head are connected, can improve the leakproofness between connector and the working body again.
In order to adapt to the working environment of low temperature and high pressure, the Rockwell hardness of the rod head 14 is 55-59 HRC, the Rockwell hardness of the valve block 15 is 33-36 HRC, the tolerance of the pressure release valve is further improved by material selection, and the service life of the pressure release valve is prolonged.
When the ultrahigh pressure relief valve is used, the ultrahigh pressure relief valve is connected and fixed with equipment through the valve seat pressure plate, the hydraulic oil cylinder is started, the valve rod and the rod head are driven by the oil cylinder ejector rod to extend towards the valve block until the rod head penetrates through the valve rod hole to be in line contact with the air inlet hole in the valve block, and the rod head seals the air inlet hole; when the pressure in the equipment is too high and needs to be relieved and released, high-pressure gas enters from the air inlet and pushes the rod head to retract towards the direction of the hydraulic oil cylinder until the rod head is separated from the air inlet and exits from the valve rod hole, and the high-pressure gas is discharged out of the equipment through the air outlet hole.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. Superhigh pressure relief valve, including the valve body, its characterized in that: the improved air inlet valve is characterized in that a valve rod and a rod head are arranged in the valve body, the valve rod is detachably connected with the rod head, a valve block is further arranged in the valve body, the top of the valve block is connected with an air cavity, a valve rod hole and an air outlet hole are formed in the air cavity, an air inlet hole is formed in the valve block, the rod head is matched with the valve rod hole and the air inlet hole in structure, and when the rod head enters the air inlet hole, the rod head is in line contact with the air inlet hole and sealed.
2. The extra-high pressure relief valve of claim 1 wherein: the tip of club head is isosceles trapezoid structure, and the apex angle is 115 ~ 130.
3. The extra-high pressure relief valve of claim 2 wherein: the diameter value of the valve block is 2.5-3 times of the length of the top edge of the rod head.
4. The extra-high pressure relief valve of claim 1 wherein: the head is sequentially provided with a first sealing ring, an O-shaped ring and a second sealing ring in a connecting mode, the O-shaped rings are arranged on two sides of the head, and the O-shaped rings are located between the first sealing ring and the second sealing ring.
5. The extra-high pressure relief valve of claim 1 or 2 wherein: be equipped with the beryllium bronze seal cover on the pole head outer wall.
6. The extra-high pressure relief valve of claim 4 wherein: be equipped with the beryllium bronze seal cover on the pole head outer wall.
7. The extra-high pressure relief valve of claim 1 wherein: the valve body comprises a connecting body and a working body, the connecting body is fixedly connected with the hydraulic oil cylinder through a connecting seat, a valve rod is arranged in the connecting body, and the end part of the valve rod is connected with an oil cylinder ejector rod; the working body is connected with the connecting body through a supporting seat, a rod head is arranged in the working body, and the rod head is fixedly connected with the other end of the valve rod through the supporting seat.
8. The extra-high pressure relief valve of claim 7 wherein: the valve block is arranged in the working body and is fixed on the inner wall of the working body through a valve block support.
9. The extra-high pressure relief valve of claim 8 wherein: the end part of the valve rod close to the supporting seat is provided with a sealing sleeve pressing cap, and the end part of the valve rod close to the supporting seat is provided with a sealing ring pressing sleeve.
10. The extra-high pressure relief valve of claim 1 wherein: the Rockwell hardness of the rod head is 55-59 HRC, and the Rockwell hardness of the valve block is 33-36 HRC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010593894.5A CN111486237A (en) | 2020-06-28 | 2020-06-28 | Ultrahigh pressure relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010593894.5A CN111486237A (en) | 2020-06-28 | 2020-06-28 | Ultrahigh pressure relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111486237A true CN111486237A (en) | 2020-08-04 |
Family
ID=71793481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010593894.5A Pending CN111486237A (en) | 2020-06-28 | 2020-06-28 | Ultrahigh pressure relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111486237A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403443A (en) * | 2008-10-23 | 2009-04-08 | 中国农业大学 | Automatic pressure relief valve for ultra-high pressure equipment |
| US20090229333A1 (en) * | 2008-03-13 | 2009-09-17 | Gm Global Technology Operations, Inc. | Controlling Fluid Pressure in a Hydroforming Process |
| CN201575212U (en) * | 2009-12-31 | 2010-09-08 | 山西三水银河科技有限公司 | Integrated ultra-high pressure unloading valve |
| CN202392124U (en) * | 2011-12-06 | 2012-08-22 | 四川航空工业川西机器有限责任公司 | Extra-high pressure relief valve |
| CN202768968U (en) * | 2012-02-07 | 2013-03-06 | 无锡市威海达机械制造有限公司 | Ultrahigh pressure automatic pressure relief apparatus with wear compensation |
| CN204783914U (en) * | 2015-07-06 | 2015-11-18 | 沈阳泰格石油仪器设备制造有限公司 | Multiviscosisty is hydraulic system relief valve for appearance |
| CN205859265U (en) * | 2016-06-21 | 2017-01-04 | 佛山市南海金刚新材料有限公司 | A kind of supertension relief valve |
| CN206036323U (en) * | 2016-08-31 | 2017-03-22 | 广州华臻机械设备有限公司 | Unloading valve |
| CN106763803A (en) * | 2015-11-20 | 2017-05-31 | 中国石油化工股份有限公司 | A kind of control valve for small flows |
| CN210484978U (en) * | 2019-06-21 | 2020-05-08 | 太仓阳净环保科技有限公司 | Pressure maintaining device for hot mixed fluid continuous flow high-pressure pipeline |
-
2020
- 2020-06-28 CN CN202010593894.5A patent/CN111486237A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090229333A1 (en) * | 2008-03-13 | 2009-09-17 | Gm Global Technology Operations, Inc. | Controlling Fluid Pressure in a Hydroforming Process |
| CN101403443A (en) * | 2008-10-23 | 2009-04-08 | 中国农业大学 | Automatic pressure relief valve for ultra-high pressure equipment |
| CN201575212U (en) * | 2009-12-31 | 2010-09-08 | 山西三水银河科技有限公司 | Integrated ultra-high pressure unloading valve |
| CN202392124U (en) * | 2011-12-06 | 2012-08-22 | 四川航空工业川西机器有限责任公司 | Extra-high pressure relief valve |
| CN202768968U (en) * | 2012-02-07 | 2013-03-06 | 无锡市威海达机械制造有限公司 | Ultrahigh pressure automatic pressure relief apparatus with wear compensation |
| CN204783914U (en) * | 2015-07-06 | 2015-11-18 | 沈阳泰格石油仪器设备制造有限公司 | Multiviscosisty is hydraulic system relief valve for appearance |
| CN106763803A (en) * | 2015-11-20 | 2017-05-31 | 中国石油化工股份有限公司 | A kind of control valve for small flows |
| CN205859265U (en) * | 2016-06-21 | 2017-01-04 | 佛山市南海金刚新材料有限公司 | A kind of supertension relief valve |
| CN206036323U (en) * | 2016-08-31 | 2017-03-22 | 广州华臻机械设备有限公司 | Unloading valve |
| CN210484978U (en) * | 2019-06-21 | 2020-05-08 | 太仓阳净环保科技有限公司 | Pressure maintaining device for hot mixed fluid continuous flow high-pressure pipeline |
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Application publication date: 20200804 |