CN203309247U - Spring full lift safety valve - Google Patents
Spring full lift safety valve Download PDFInfo
- Publication number
- CN203309247U CN203309247U CN2013203135571U CN201320313557U CN203309247U CN 203309247 U CN203309247 U CN 203309247U CN 2013203135571 U CN2013203135571 U CN 2013203135571U CN 201320313557 U CN201320313557 U CN 201320313557U CN 203309247 U CN203309247 U CN 203309247U
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- China
- Prior art keywords
- valve
- flap
- seat
- spring
- adjusting ring
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- 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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- Safety Valves (AREA)
- Lift Valve (AREA)
Abstract
The utility model discloses a spring full lift safety valve. The spring full lift safety valve comprises a valve bonnet, a valve cover, a valve body, a valve seat, a valve flap, a guide sleeve, a disc holder and a valve rod, wherein an upper spring seat, a lower spring seat and a spring which is fixedly connected with the upper spring seat and the lower spring seat are arranged in the valve cover; an adjusting ring is in threaded connection with the external part of one end of the valve seat opposite to the valve flap; the valve body is provided with a positioning through hole at a position corresponding to the adjusting ring; the positioning through hole penetrates a finger positioning bolt which is positioned and matched with the adjusting ring. The valve seat is provided with the adjusting ring, and the disc holder is sleeved on the valve flap, so that rational jump-up parameter and reseating pressure can be calculated according to actual pipeline requirements; proper and stable reseating pressure is controlled through matching and positioning of the adjusting ring and the finger positioning bolt; the jump-up parameter and the reseating pressure of the valve flap and the disc holder are accurately controlled by using the adjusting ring through the matching of the disc holder and the adjusting ring, so that the valve achieves ideal blowdown, and the safety valve can be quickly opened and timely reseated.
Description
Technical field
The utility model relates to a kind of valve, and more particularly, it relates to a kind of spring Fall lift safety valve.
Background technique
Safety valve is a kind of safety protection valve; its open-shut device is subjected to be in normally off under External Force Acting; pressure medium in equipment or pipeline raises, and automatically opens while surpassing specified value, prevents that by outside system, discharging medium in pipeline or equipment, pressure medium surpasses specified value.Safety valve belongs to the self-acting valve class, is mainly used on boiler, pressurized container and pipeline, and pilot pressure is no more than specified value, and personal safety and equipment have been moved to important protective action.Safety valve is important safety attachment on boiler, pressurized container and other equipment that is stressed.Its Reliability of Microprocessor and performance quality are directly connected to equipment and personal safety, and are closely related with energy-conservation and environmental protection.
Safety valve application in currently available technology is on the pipeline or pressurized container of protected system; to guarantee the Security of pipeline or pressurized container; special in the safety valve under hyperbaric environment; traditional safety valve is when work; Blowdown of a safety valve large sometimes little situation sometimes easily appears; and, when the opening and closing flap, there will be Reseating pressure of a safety valve reliable and stable not, affect the working condition of valve.
The model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of opening speed fast, the spring Fall lift safety valve that Reseating pressure of a safety valve is reliable and stable.
For achieving the above object, the utility model provides following technological scheme: a kind of spring Fall lift safety valve, comprise bonnet, valve gap, valve body, valve seat, flap, guide sleeve, Disc holder and valve rod, in described valve gap, be provided with upper spring seat, lower spring cup and with upper, the spring that lower spring cup is fixedly connected with, described upper spring seat, spring, lower spring cup is located in outside valve rod successively, bonnet is connected with valve gap, described valve gap is fixedly connected with valve body, valve seat is placed in valve body and the other end of relative valve gap, guide sleeve is fixedly arranged on the joint of valve gap and valve body, described flap, Disc holder and guide sleeve be socket successively from the inside to the outside, and flap, Disc holder and valve rod are connected along the axial direction of valve rod, but flap is connected with the valve seat contact seal, one end outside thread of the relative flap of described valve seat is connected with Adjusting ring, on valve body, corresponding Adjusting ring place is provided with positioning through hole, positioning through hole is equipped with the finger holding down bolt for coordinating with the Adjusting ring location.
By adopting technique scheme, on valve seat, be provided with Adjusting ring, and cover has Disc holder on flap, can be according to actual pipeline needs, calculate rational take-off parameter and Reseating pressure of a safety valve, by Adjusting ring and finger holding down bolt, coordinate location, control suitable, stable Reseating pressure of a safety valve, and logical Disc holder coordinates with Adjusting ring, utilize Adjusting ring to be used for accurately controlling take-off parameter and the Reseating pressure of a safety valve of flap and Disc holder, make valve reach desirable Blowdown of a safety valve, seat can be opened rapidly and be returned in time to safety valve.
The utility model further is set to: described valve seat is connected with valve body screw thread.
By adopting technique scheme, valve seat is connected with valve body screw thread, guarantees the connection reliability of valve seat and valve body, simultaneously easy for installation.
The utility model further is set to: described flap is integrally formed with by stainless iron material high frequency hardening and forms valve clack sealing surface.
By adopting technique scheme, flap is integrally formed with the valve clack sealing surface formed by stainless iron material high frequency hardening, stainless iron has good anti-corrosion capability, guaranteed that flap is not subjected to the erosion of medium, utilize it not yielding under pressure medium, improve sealability, let out phenomenon before when overcoming safety valve closing on Set pressure under pressure medium, and the cost of stainless iron is relatively low; Valve clack sealing surface is processed through high frequency hardening, has effectively strengthened its hardness, wear resistance and impact resistance, improves the usability of product, economical and practical.
The utility model further is set to: the sealing surface of described valve seat is that Hardmetal materials is made.
By adopting technique scheme, the high hardness of this material and wear resistance are very good, the life cycle that has extended valve seat.
The accompanying drawing explanation
Fig. 1 is the sectional view of the utility model embodiment spring Fall lift safety valve.
Reference character in figure: 1, valve body; 2, valve seat; 3, finger holding down bolt; 4, Adjusting ring; 5, flap; 6, Disc holder; 7, guide sleeve; 8, valve gap; 91, lower spring cup; 92, spring; 93, upper spring seat; Valve rod 10; 11, bonnet.
Embodiment
With reference to Fig. 1, the utility model spring Fall lift safety valve embodiment is described further.
A kind of spring Fall lift safety valve, comprise bonnet 11, valve gap 8, valve body 1, valve seat 2, flap 5, guide sleeve 7, Disc holder 6 and valve rod 10, in described valve gap 8, be provided with upper spring seat 93, lower spring cup 91 and with upper, lower spring cup 93, 91 springs that are fixedly connected with 92, described upper spring seat 93, spring 92, lower spring cup 91 is located in outside valve rod 10 successively, bonnet 11 is connected with valve gap 8, described valve gap 8 is fixedly connected with valve body 1, valve seat 2 is placed in valve body 1 and the other end of relative valve gap 8, guide sleeve 7 is fixedly arranged on the joint of valve gap 8 and valve body 1, described flap 5, Disc holder 6 and guide sleeve 7 be socket successively from the inside to the outside, and flap 5, Disc holder 6 and valve rod 10 are connected along the axial direction of valve rod 10, but flap 5 is connected with valve seat 2 contact seals, one end outside thread of described valve seat 2 relative flaps 5 is connected with Adjusting ring 4, on valve body 1, corresponding Adjusting ring 4 places are provided with positioning through hole, positioning through hole is equipped with the finger holding down bolt 3 for coordinating with Adjusting ring 4 location.
By adopting technique scheme, on valve seat 2, be provided with Adjusting ring 4, and cover has Disc holder 6 on flap 5, can be according to actual pipeline needs, calculate rational take-off parameter and Reseating pressure of a safety valve, by Adjusting ring 4 and finger holding down bolt 3, coordinate location, control suitable, stable Reseating pressure of a safety valve, and logical Disc holder 6 coordinates with Adjusting ring 4, utilize Adjusting ring 4 to be used for accurately controlling take-off parameter and the Reseating pressure of a safety valve of flap 5 and Disc holder 6, make valve reach desirable Blowdown of a safety valve, seat can be opened rapidly and be returned in time to safety valve.
Described valve seat 2 is threaded with valve body 1.
By adopting technique scheme, valve seat 2 is threaded with valve body 1, guarantees the connection reliability of valve seat 2 and valve body 1, simultaneously easy for installation.
Described flap 5 is integrally formed with by stainless iron material high frequency hardening and forms flap 5 sealing surfaces.
By adopting technique scheme, flap 5 is integrally formed with flap 5 sealing surfaces that formed by stainless iron material high frequency hardening, stainless iron has good anti-corrosion capability, guaranteed that flap 5 is not subjected to the erosion of medium, utilize it not yielding under pressure medium, improve sealability, let out phenomenon before when overcoming safety valve closing on Set pressure under pressure medium, and the cost of stainless iron is relatively low; Flap 5 sealing surfaces are processed through high frequency hardening, have effectively strengthened its hardness, wear resistance and impact resistance, improve the usability of product, economical and practical.
The sealing surface of described valve seat 2 is that Hardmetal materials is made.
By adopting technique scheme, the high hardness of this material and wear resistance are very good, have extended the life cycle of valve seat 2.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model also not only is confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not break away under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. spring Fall lift safety valve, comprise bonnet, valve gap, valve body, valve seat, flap, guide sleeve, Disc holder and valve rod, in described valve gap, be provided with upper spring seat, lower spring cup and with upper, the spring that lower spring cup is fixedly connected with, described upper spring seat, spring, lower spring cup is located in outside valve rod successively, described valve gap is fixedly connected with valve body, valve seat is placed in valve body and the other end of relative valve gap, guide sleeve is fixedly arranged on the joint of valve gap and valve body, described flap, Disc holder and guide sleeve be socket successively from the inside to the outside, and flap, Disc holder and valve rod are connected along the axial direction of valve rod, but flap is connected with the valve seat contact seal, it is characterized in that: an end outside thread of the relative flap of described valve seat is connected with Adjusting ring, on valve body, corresponding Adjusting ring place is provided with positioning through hole, positioning through hole is equipped with the finger holding down bolt for coordinating with the Adjusting ring location.
2. spring Fall lift safety valve according to claim 1, it is characterized in that: described valve seat is connected with valve body screw thread.
3. spring Fall lift safety valve according to claim 1 and 2, it is characterized in that: described flap is integrally formed with by stainless iron material high frequency hardening and forms valve clack sealing surface.
4. spring Fall lift safety valve according to claim 3, it is characterized in that: the sealing surface of described valve seat is that Hardmetal materials is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203135571U CN203309247U (en) | 2013-05-31 | 2013-05-31 | Spring full lift safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203135571U CN203309247U (en) | 2013-05-31 | 2013-05-31 | Spring full lift safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203309247U true CN203309247U (en) | 2013-11-27 |
Family
ID=49615459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203135571U Expired - Fee Related CN203309247U (en) | 2013-05-31 | 2013-05-31 | Spring full lift safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203309247U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958802A (en) * | 2019-04-26 | 2019-07-02 | 开封市瑞发高中压阀门有限公司 | Low pressure finely tunes built-in dead weight type safety valve |
-
2013
- 2013-05-31 CN CN2013203135571U patent/CN203309247U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958802A (en) * | 2019-04-26 | 2019-07-02 | 开封市瑞发高中压阀门有限公司 | Low pressure finely tunes built-in dead weight type safety valve |
| CN109958802B (en) * | 2019-04-26 | 2024-04-02 | 开封市瑞发高中压阀门有限公司 | Low-pressure fine-tuning built-in dead weight type 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 |
Granted publication date: 20131127 Termination date: 20160531 |