CN203823170U - Spring full lift safety valve - Google Patents
Spring full lift safety valve Download PDFInfo
- Publication number
- CN203823170U CN203823170U CN201420187054.9U CN201420187054U CN203823170U CN 203823170 U CN203823170 U CN 203823170U CN 201420187054 U CN201420187054 U CN 201420187054U CN 203823170 U CN203823170 U CN 203823170U
- Authority
- CN
- China
- Prior art keywords
- valve
- guide sleeve
- valve body
- spring
- sleeve flange
- 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 - Lifetime
Links
- 230000005855 radiation Effects 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 230000008676 import Effects 0.000 claims description 9
- 238000002955 isolation Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Safety Valves (AREA)
Abstract
The utility model discloses a spring full lift safety valve. According to the spring full lift safety valve, a valve clack and a valve seat are arranged in the inner chamber of a valve body; the valve clack is compressed on the sealing surface of the valve seat to isolate the inlet of the valve body and the outlet of the valve body; the valve clack is connected onto the lower end of the valve rod and positioned in a valve clack base; the valve clack base is positioned in a guide sleeve and can move up and down in the guide sleeve; an upper adjusting ring is connected onto the circumference at the lower end of the guide sleeve in a rotating manner; a lower adjusting ring is connected onto the circumference at the upper end of the valve seat in a rotating manner; the upper part of the valve rod is positioned in a valve cap and the valve rod is sleeved with a spring; a guide sleeve flange integrally connected with the guide sleeve is arranged at the upper end of the guide sleeve; the outer edge of the guide sleeve flange is clamped between the valve cap and the valve body; the valve cap and the valve body are fixedly connected through a stud; a guide hole extending along the axial line of the guide sleeve flange is formed in the center of the guide sleeve flange; the valve rod penetrates through the guide hole; a plurality of heat radiation blind holes are formed in the outer circumference of the guide sleeve flange; all heat radiation blind holes are uniformly distributed into a radial pattern centered around the axial line of the valve rod. The spring full lift safety valve has the advantages that the structure is simple, the cost is low and the radiating effect is good.
Description
Technical field
The utility model relates to a kind of safety valve, particularly a kind of spring Fall lift safety valve.
Background technique
Spring Fall lift safety valve of the prior art comprises valve body, valve gap and valve rod, valve body is provided with valve body import and valve outlet, the inner chamber of valve body is provided with flap and valve seat, flap is pressed on the sealing surface of valve seat valve body import and valve outlet isolation, flap is connected to the lower end of valve rod and is arranged in flap seat, flap seat is arranged in guide sleeve and can moves up and down along guide sleeve, the lower end periphery of guide sleeve is connected with upper Adjusting ring by screw thread, the upper end periphery of valve seat is connected with lower Adjusting ring by screw thread, upper Adjusting ring and lower Adjusting ring are in order to regulate the Blowdown of a safety valve of flap, on valve body, be screwed with Adjusting ring set screw and lower Adjusting ring set screw, utilize respectively the fixing upper Adjusting ring of cone end and lower Adjusting ring.The top of valve rod is arranged in the spring that is set with adjustment safety valve setting pressure on valve gap and valve rod, spring supporting is between upper spring seat and lower spring cup, lower spring cup is supported on the step of valve rod, upper spring seat central upper portion is provided with bearing, bearing top is supported with Adjusting bolt Adjusting screw, Adjusting bolt Adjusting screw is screwed in the center hole of valve gap upper boss, little round nut is screwed in Adjusting bolt Adjusting screw periphery and is pressed on the boss of valve gap, on the boss of valve gap, be connected with safety cover, safety cover is fixed on valve gap by Cock screw, handle is hinged on valve gap by handle bearing pin, pulling yoke is hinged on valve gap by pulling yoke bearing pin, pulling yoke is pressed in handle top, the top of pulling yoke is pressed with hoisting nut, hoisting nut is screwed in valve rod top, hoisting nut top is pressed with bullet pad and big nut, valve rod top is pressed with compressor arm, compressor arm is screwed in the center screw of safety cover.Radiator is installed between valve body and valve gap, the spring and the valve body that are positioned at valve gap are separated, in case spring is subject to thermal failure, between radiator and adjusting ring support, be provided with back pressure cavity, the center, upper-end surface of radiator is provided with vent hole, valve rod passes and enters valve gap from vent hole, and the spring in valve gap is supported on valve rod by upper spring seat and lower spring cup respectively.This safety valve structure complexity, manufacture difficulty and cost are high.
Model utility content
The purpose of this utility model is, overcomes problems of the prior art, and a kind of spring Fall lift safety valve of simple in structure, good heat dissipation effect is provided.
For solving above technical problem, a kind of spring Fall lift safety valve provided by the utility model, comprise valve body, valve gap and valve rod, described valve body is provided with valve body import and valve outlet, the inner chamber of described valve body is provided with flap and valve seat, described flap is pressed on the sealing surface of described valve seat valve body import and valve outlet isolation, described flap is connected to the lower end of described valve rod and is arranged in flap seat, described flap seat is arranged in guide sleeve and can moves up and down along guide sleeve, the lower end periphery of described guide sleeve is connected with upper Adjusting ring by screw thread, the upper end periphery of described valve seat is connected with lower Adjusting ring by screw thread, the top of described valve rod is arranged in the spring that is set with adjustment safety valve setting pressure on described valve gap and valve rod, the upper end of described guide sleeve is provided with the guide sleeve flange being connected as a single entity with guide sleeve, the outer rim of described guide sleeve flange is clamped between the lower end surface of described valve gap and the upper-end surface of described valve body, between described valve gap and described valve body, be fixedly connected with by stud, the center of described guide sleeve flange is provided with the pilot hole along its Axis Extension, described valve rod passes from described pilot hole, the excircle of described guide sleeve flange is provided with multiple heat radiation blind holes, each described heat radiation blind hole is radial and is uniformly distributed centered by the axis of valve rod.
With respect to prior art, the utility model has been obtained following beneficial effect: the heat radiation blind hole on guide sleeve flange excircle week has increased the heat diffusion area of guide sleeve flange, the heat at valve rod place is distributed as early as possible, avoid spring to be subject to thermal failure, simple in structure, easily manufactured, and can meet heat radiation requirement, reduce the cost of safety valve.
As preferred version of the present utility model, described heat radiation blind hole has 12 along the circle distribution of described guide sleeve flange.
As preferred version of the present utility model, the pilot hole inwall of described guide sleeve flange is provided with at least one circular groove.Safety valve is all to produce discharge back pressure in superpressure discharge, Reseating pressure of a safety valve and the discharge pressure of discharge back pressure to valve has a great impact, in pilot hole, arrange after circular groove, in the time that valve superpressure is discharged, in the circular groove of pilot hole, there is multipole pressure to exist, reduced the impact of back pressure on valve performance.
As further preferred version of the present utility model, described circular groove is provided with four roads along the length direction of described pilot hole.Four road circular grooves can play enough damping functions, and back pressure is dropped to extremely low on the impact of valve performance.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model spring Fall lift safety valve.
Fig. 2 is the enlarged view of A portion in Fig. 1.
In figure: 1. valve body; The import of 1a. valve body; 1b. valve outlet; 2. valve gap; 3. valve rod; 4. flap; 5. valve seat; 6. flap seat; 7. guide sleeve; 8. go up Adjusting ring; The upper Adjusting ring set screw of 8a.; 9. descend Adjusting ring; Adjusting ring set screw under 9a.; 10. stud; 11. guide sleeve flanges; The 11a. blind hole of dispelling the heat; 11b. circular groove; 12. springs; 12a. lower spring cup; 12b. upper spring seat; 13. bearings; 14. Adjusting bolt Adjusting screws; 15. little round nuts; 16. big nuts; 17. compressor arms; 18. safety covers; 19. Cock screws; 20. pulling yokes; 20a. pulling yoke bearing pin; 20b. hoisting nut; 21. handles; 21a. handle bearing pin.
Embodiment
As shown in Figures 1 and 2, spring Fall lift safety valve of the present utility model comprises valve body 1, valve gap 2 and valve rod 3, valve body 1 is provided with valve body import 1a and valve outlet 1b, the inner chamber of valve body 1 is provided with flap 4 and valve seat 5, flap 4 is pressed on the sealing surface of valve seat 5 valve body import 1a and valve outlet 1b isolation, flap 4 is connected to the lower end of valve rod 3 and is arranged in flap seat 6, flap seat 6 is arranged in guide sleeve 7 and can moves up and down along guide sleeve 7, the lower end periphery of guide sleeve 7 is connected with upper Adjusting ring 8 by screw thread, the upper end periphery of valve seat 5 is connected with lower Adjusting ring 9 by screw thread, upper Adjusting ring 8 and lower Adjusting ring 9 are in order to regulate the Blowdown of a safety valve of flap 4, on valve body 1, be screwed with Adjusting ring set screw 8a and lower Adjusting ring set screw 9a, utilize respectively the fixing upper Adjusting ring 8 of cone end and lower Adjusting ring 9.
The upper end of guide sleeve 7 is provided with the guide sleeve flange 11 being connected as a single entity with guide sleeve 7, the outer rim of guide sleeve flange 11 is clamped between the lower end surface of valve gap 2 and the upper-end surface of valve body 1, between valve gap 2 and valve body 1, be fixedly connected with by stud 10, the center of guide sleeve flange is provided with the pilot hole along its Axis Extension, valve rod 3 passes from pilot hole, the excircle of guide sleeve flange is provided with multiple heat radiation blind hole 11a, be preferably 12, the blind hole of respectively dispelling the heat 11a is radial and is uniformly distributed centered by the axis of valve rod 3.The pilot hole inwall of guide sleeve flange is provided with at least one circular groove 11b, is preferably four road circular grooves.
The top of valve rod 3 is arranged in the spring 12 that is set with adjustment safety valve setting pressure on valve gap 2 and valve rod 3, spring 12 is supported between upper spring seat 12b and lower spring cup 12a, lower spring cup 12a is supported on the step of valve rod 3, upper spring seat 12b central upper portion is provided with bearing 13, bearing 13 tops are supported with Adjusting bolt Adjusting screw 14, Adjusting bolt Adjusting screw 14 is screwed in the center hole of valve gap 2 upper boss, roundlet nut 15 is screwed in Adjusting bolt Adjusting screw 14 peripheries and is pressed on the boss of valve gap 2, on the boss of valve gap 2, be connected with safety cover 18, safety cover 18 is fixed on valve gap 2 by Cock screw 19, handle 21 is hinged on valve gap 2 by handle bearing pin 21a, pulling yoke 20 is hinged on valve gap 2 by pulling yoke bearing pin 20a, pulling yoke 20 is pressed in handle 21 tops, the top of pulling yoke 20 is pressed with hoisting nut 20b, hoisting nut 20b is screwed in valve rod 3 tops, hoisting nut 20b top is pressed with bullet pad and big nut 16, valve rod 3 tops are pressed with compressor arm 17, compressor arm 17 is screwed in the center screw of safety cover 18.
In addition to the implementation, the utility model can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all fall into the protection domain of the utility model requirement.
Claims (4)
1. a spring Fall lift safety valve, comprise valve body, valve gap and valve rod, described valve body is provided with valve body import and valve outlet, the inner chamber of described valve body is provided with flap and valve seat, described flap is pressed on the sealing surface of described valve seat valve body import and valve outlet isolation, described flap is connected to the lower end of described valve rod and is arranged in flap seat, described flap seat is arranged in guide sleeve and can moves up and down along guide sleeve, the lower end periphery of described guide sleeve is connected with upper Adjusting ring by screw thread, the upper end periphery of described valve seat is connected with lower Adjusting ring by screw thread, the top of described valve rod is arranged in the spring that is set with adjustment safety valve setting pressure on described valve gap and valve rod, it is characterized in that: the upper end of described guide sleeve is provided with the guide sleeve flange being connected as a single entity with guide sleeve, the outer rim of described guide sleeve flange is clamped between the lower end surface of described valve gap and the upper-end surface of described valve body, between described valve gap and described valve body, be fixedly connected with by stud, the center of described guide sleeve flange is provided with the pilot hole along its Axis Extension, described valve rod passes from described pilot hole, the excircle of described guide sleeve flange is provided with multiple heat radiation blind holes, each described heat radiation blind hole is radial and is uniformly distributed centered by the axis of valve rod.
2. spring Fall lift safety valve according to claim 1, is characterized in that: described heat radiation blind hole has 12 along the circle distribution of described guide sleeve flange.
3. spring Fall lift safety valve according to claim 1 and 2, is characterized in that: the pilot hole inwall of described guide sleeve flange is provided with at least one circular groove.
4. spring Fall lift safety valve according to claim 3, is characterized in that: described circular groove is provided with four roads along the length direction of described pilot hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420187054.9U CN203823170U (en) | 2014-04-17 | 2014-04-17 | Spring full lift safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420187054.9U CN203823170U (en) | 2014-04-17 | 2014-04-17 | Spring full lift safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203823170U true CN203823170U (en) | 2014-09-10 |
Family
ID=51478674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420187054.9U Expired - Lifetime CN203823170U (en) | 2014-04-17 | 2014-04-17 | Spring full lift safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203823170U (en) |
-
2014
- 2014-04-17 CN CN201420187054.9U patent/CN203823170U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |
|
| CX01 | Expiry of patent term |