CN214838558U - Ultra-low temperature high pressure elastic compensation metal sealing ball valve - Google Patents
Ultra-low temperature high pressure elastic compensation metal sealing ball valve Download PDFInfo
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- CN214838558U CN214838558U CN202121350777.2U CN202121350777U CN214838558U CN 214838558 U CN214838558 U CN 214838558U CN 202121350777 U CN202121350777 U CN 202121350777U CN 214838558 U CN214838558 U CN 214838558U
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Abstract
The utility model discloses an ultra-low temperature high pressure elastic compensation metal seal ball valve, which comprises a valve body, the both ends of valve body are connected with the nozzle stub, be provided with the disk seat in the valve body, there is the ball case in the disk seat, be fixed with the valve rod on the ball case, the top surface integrated into one piece of valve body has the bulge loop, the top surface of valve body still is provided with the valve gap, integrated into one piece has elongated valve rod passageway on the valve gap, the bottom surface of valve gap, the bulge loop, form the release cavity between the top surface of valve body and disk seat and ball case, the pressure release hole has been seted up between the entering end of valve body and the release cavity, the chamber of supporting has been seted up to the bottom surface of valve gap, it is provided with cylindrical spring to support between the top surface of chamber and ball case, be provided with the packings between the top of valve rod and valve gap, the snap ring internal buckle is fixed with the drip tray. The utility model discloses a structure sets up rationally, improves and uses the leakproofness, guarantees that it uses stationarity and reliability, reduces the influence of temperature reversal to sealing filler, and it also conveniently overhauls and maintains simultaneously, and the suitability is strong and the practicality is good.
Description
Technical Field
The utility model belongs to the technical field of the ball valve, concretely relates to ultra-low temperature high pressure elastic compensation metal seal ball valve.
Background
The metal seal ball valve is a common valve body, it is mainly by the valve body, connect the nozzle stub on the valve body, be provided with the disk seat in the valve body, and be provided with the case in the disk seat, be fixed with the valve rod on the case, be provided with the sealing filler between valve rod and the valve body, it though can satisfy the user demand of general condition, but because the service environment of metal seal ball valve is comparatively complicated, so the condition of temperature reversal appears easily, and its sealing filler can influence the live load at low temperature, influence its steady leakproofness of using, and it can not effectual realization release regulation, also do not be favorable to maintaining and overhauing, so suitability and practicality receive the restriction.
Disclosure of Invention
The utility model aims at providing a structure sets up reasonable and the strong ultra-low temperature high pressure elastic compensation metal seal ball valve of suitability.
The technical scheme for realizing the purpose of the utility model is that the ultralow temperature high pressure elastic compensation metal seal ball valve comprises a valve body, short pipes are connected with two ends of the valve body, a valve seat is arranged in the valve body, a ball valve core is arranged in the valve seat, a valve rod is fixed on the ball valve core, a convex ring is integrally formed on the top surface of the valve body, a valve cover is also arranged on the top surface of the valve body, the valve cover is pressed on the convex ring and fixed by a screw rod, an elongated valve rod channel is integrally formed on the valve cover, the valve seat is in a round table shape with a large top end and a small bottom end, the ball valve core is a spherical wedge-shaped ball body, a pressure relief cavity is formed between the bottom surface of the valve cover, the convex ring, the top surface of the valve body and the top surface of the valve seat and the ball valve core, a pressure relief hole is formed between the entering end of the valve body and the pressure relief cavity, a pressure relief cavity is formed on the bottom surface of the valve cover, a cylindrical spring is arranged between the pressure relief cavity and the top surface of the ball valve core, the ball valve core is in sealing fit in the valve seat under the abutting action of the cylindrical spring, sealing filler is arranged between the top of the valve rod and the top of the valve cover, a plurality of clamping rings are arranged on the outer wall of the valve cover, a drip tray is fixed in the clamping rings through clamping buckles, and the clamping rings are located between the sealing filler and the valve body.
A self-pressing sealing ring is fixed between the sealing filler and the inner wall of the valve cover, an n-shaped clamping groove is formed in the bottom surface of the self-pressing sealing ring, a pressing clamping ring is arranged in the n-shaped clamping groove, and the outer surface of the self-pressing sealing ring is an arched surface.
And the bottom of the valve rod channel is provided with a sealing sleeve, and the valve rod penetrates through the sealing sleeve and the bottom surface of the sealing sleeve is pressed against the top surface of the ball valve core.
The ball valve is characterized in that a convex point-shaped sealing abutting ring is arranged on the inner wall of the valve seat, annular sealing abutting grooves are formed in the top and the bottom of the outer wall of the ball valve core, and convex points of the convex point-shaped sealing abutting ring are abutted and pressed in the annular sealing abutting grooves.
The utility model discloses has positive effect: the utility model discloses a structure sets up rationally, it is provided with cylindrical spring, the disk seat of cooperation sphere wedge spheroid and round platform form, through cylindrical spring support under the pressure effect, can make the sealed pressure of sphere wedge spheroid support on the inner wall of disk seat, improve and use the leakproofness, and it is provided with the release cavity, thereby liquid can release to the release cavity in through the pressure release hole when the superpressure because of the vaporization under the temperature reversal, guarantee its use stationarity and reliability, and it is provided with elongated valve rod passageway cooperation drip tray, can reduce the influence of temperature reversal to the packings, it also conveniently overhauls and maintains simultaneously, overall structure low temperature resistance is good and the leakproofness is strong, the suitability is strong and the practicality is good.
Drawings
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the following specific embodiments, taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
(example 1)
Fig. 1 shows a specific embodiment of the present invention, wherein fig. 1 is a schematic structural diagram of the present invention.
Referring to fig. 1, an ultra-low temperature high pressure elastic compensation metal seal ball valve comprises a valve body 1, wherein two ends of the valve body are connected with short pipes 2, a valve seat 3 is arranged in the valve body, a ball valve core 4 is arranged in the valve seat, a valve rod 5 is fixed on the ball valve core, a convex ring 6 is integrally formed on the top surface of the valve body, a valve cover 7 is further arranged on the top surface of the valve body, the valve cover is pressed on the convex ring and fixed through a screw 8, an elongated valve rod channel 9 is integrally formed on the valve cover, the valve seat is in a round table shape with a large top end and a small bottom end, the ball valve core is a spherical wedge-shaped ball body, a pressure relief cavity 10 is formed between the bottom surface of the valve cover, the convex ring, the top surface of the valve body and the top surface of the valve seat and the ball valve core, a pressure relief hole 11 is formed between the inlet end of the valve body and the pressure relief cavity, and a pressure relief cavity 12 is formed on the bottom surface of the valve cover, the ball valve is characterized in that a cylindrical spring 13 is arranged between the pressing cavity and the top surface of the ball valve core, the valve rod penetrates through the cylindrical spring, the ball valve core is hermetically attached to the valve seat under the pressing effect of the cylindrical spring, a sealing filler 14 is arranged between the valve rod and the top of the valve cover, a plurality of clamping rings 15 are arranged on the outer wall of the valve cover, a drip tray 16 is fixedly clamped in the clamping rings, and the clamping rings are located between the sealing filler and the valve body.
A self-pressing sealing ring 17 is fixed between the sealing filler and the inner wall of the valve cover, an n-shaped clamping groove 18 is formed in the bottom surface of the self-pressing sealing ring, a pressing clamping ring 19 is arranged in the n-shaped clamping groove, and the outer surface of the self-pressing sealing ring is an arch surface.
The bottom of the valve rod channel is provided with a sealing sleeve 20, and the valve rod penetrates through the sealing sleeve and the bottom surface of the sealing sleeve is pressed against the top surface of the ball valve core.
The inner wall of the valve seat is provided with a convex point-shaped sealing abutting ring 21, the top and the bottom of the outer wall of the ball valve core are provided with annular sealing abutting grooves 22, and convex points of the convex point-shaped sealing abutting ring are abutted and pressed in the annular sealing abutting grooves.
The utility model discloses a structure sets up rationally, it is provided with cylindrical spring, the disk seat of cooperation sphere wedge spheroid and round platform form, through cylindrical spring support under the pressure effect, can make the sealed pressure of sphere wedge spheroid support on the inner wall of disk seat, improve and use the leakproofness, and it is provided with the release cavity, thereby liquid can release to the release cavity in through the pressure release hole when the superpressure because of the vaporization under the temperature reversal, guarantee its use stationarity and reliability, and it is provided with elongated valve rod passageway cooperation drip tray, can reduce the influence of temperature reversal to the packings, it also conveniently overhauls and maintains simultaneously, overall structure low temperature resistance is good and the leakproofness is strong, the suitability is strong and the practicality is good.
The standard parts used in the present embodiment can be purchased directly from the market, and the non-standard structural parts described in the specification can also be obtained directly by processing according to the common general knowledge of the prior art without any doubt, and the connection mode of the parts adopts the conventional means matured in the prior art, and the machines, parts and equipment adopt the conventional models in the prior art, so that the detailed description is not given here.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And such obvious changes and modifications which fall within the spirit of the invention are deemed to be covered by the present invention.
Claims (4)
1. The utility model provides an ultra-low temperature high pressure elastic compensation metal seal ball valve, includes the valve body, the both ends of valve body are connected with the nozzle stub, be provided with the disk seat in the valve body, be provided with ball case in the disk seat, be fixed with valve rod, its characterized in that on the ball case: the ball valve comprises a valve body, a valve cover, a valve rod, a pressure relief cavity, a pressure relief hole, a pressure relief cavity, a cylindrical spring, a valve rod, a cylindrical spring, a valve core, a sealing filler, a plurality of clamping rings, a valve rod and a valve cover, wherein the convex ring is integrally formed on the top surface of the valve body, the valve cover is pressed against the convex ring and fixed through a screw rod, the lengthened valve rod channel is integrally formed on the valve cover, the valve seat is in a round table shape with a large top end and a small bottom end, the ball valve core is a spherical wedge-shaped ball body, the bottom surface of the valve cover, the convex ring, the top surface of the valve body and the top surface of the valve seat and the ball valve core form the pressure relief cavity, the pressure relief hole is formed between the inlet end of the valve body and the pressure relief cavity, the bottom surface of the valve cover is provided with the pressure relief cavity, the cylindrical spring is arranged between the pressure relief cavity and the top surface of the ball valve core, the valve rod penetrates through the cylindrical spring, the sealing filler is arranged between the valve rod and the top of the valve cover, the clamping rings are arranged on the outer wall of the valve cover, the water dripping disc is fixed in the snap ring through a snap fastener, and the snap ring is located between the sealing filler and the valve body.
2. The ultra-low temperature high pressure elastic compensation metal seal ball valve of claim 1, characterized in that: a self-pressing sealing ring is fixed between the sealing filler and the inner wall of the valve cover, an n-shaped clamping groove is formed in the bottom surface of the self-pressing sealing ring, a pressing clamping ring is arranged in the n-shaped clamping groove, and the outer surface of the self-pressing sealing ring is an arched surface.
3. The ultra-low temperature high pressure elastic compensation metal seal ball valve of claim 2, characterized in that: and the bottom of the valve rod channel is provided with a sealing sleeve, and the valve rod penetrates through the sealing sleeve and the bottom surface of the sealing sleeve is pressed against the top surface of the ball valve core.
4. The ultra-low temperature high pressure elastic compensation metal seal ball valve of claim 3, characterized in that: the ball valve is characterized in that a convex point-shaped sealing abutting ring is arranged on the inner wall of the valve seat, annular sealing abutting grooves are formed in the top and the bottom of the outer wall of the ball valve core, and convex points of the convex point-shaped sealing abutting ring are abutted and pressed in the annular sealing abutting grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121350777.2U CN214838558U (en) | 2021-06-17 | 2021-06-17 | Ultra-low temperature high pressure elastic compensation metal sealing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121350777.2U CN214838558U (en) | 2021-06-17 | 2021-06-17 | Ultra-low temperature high pressure elastic compensation metal sealing ball valve |
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| Publication Number | Publication Date |
|---|---|
| CN214838558U true CN214838558U (en) | 2021-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121350777.2U Active CN214838558U (en) | 2021-06-17 | 2021-06-17 | Ultra-low temperature high pressure elastic compensation metal sealing ball valve |
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| CN (1) | CN214838558U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754162A (en) * | 2022-04-15 | 2022-07-15 | 浙江贝尔控制阀门有限公司 | Low-temperature ball valve |
-
2021
- 2021-06-17 CN CN202121350777.2U patent/CN214838558U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754162A (en) * | 2022-04-15 | 2022-07-15 | 浙江贝尔控制阀门有限公司 | Low-temperature ball valve |
| CN114754162B (en) * | 2022-04-15 | 2024-02-06 | 浙江贝尔控制阀门有限公司 | Low-temperature ball valve |
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