CN217951377U - Ultralow temperature ball valve seat sealing structure - Google Patents

Ultralow temperature ball valve seat sealing structure Download PDF

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Publication number
CN217951377U
CN217951377U CN202222254159.9U CN202222254159U CN217951377U CN 217951377 U CN217951377 U CN 217951377U CN 202222254159 U CN202222254159 U CN 202222254159U CN 217951377 U CN217951377 U CN 217951377U
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China
Prior art keywords
casing
ball valve
connection shell
valve seat
screw rod
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Active
Application number
CN202222254159.9U
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Chinese (zh)
Inventor
潘明尧
潘凯
潘超
卞菊芳
刘成美
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Jiangsu Jiulong Valve Manufacture Co ltd
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Jiangsu Jiulong Valve Manufacture Co ltd
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Abstract

The utility model relates to a disk seat seals technical field, especially relates to an ultra-low temperature ball valve disk seat seal structure, including the ball valve, the equal fixed mounting in ball valve both sides has the connector, the welding of connector bottom has casing down, and the casing top is connected with the casing down, the pipeline has been placed in casing and the last casing down, and casing and the equal fixed mounting in the last casing outside have a connection shell down, the connection shell internal rotation is connected with the screw rod, and the screw rod outside has the movable block through threaded connection, movable block one side all is connected with the clamp plate through casing and last casing down, and connection shell one side that links to each other with last casing all rotates and is connected with the rotation axis, and the rotation axis passes through the connection shell and is connected with the screw rod, is equipped with the thalposis in the connection shell that links to each other with casing down, and the thalposis bottom is connected with the display screen. The utility model discloses, utilize double-deck seal structure to play the sealed effect of increase, and the dismouting of being convenient for has stronger practicality.

Description

Ultralow temperature ball valve seat sealing structure
Technical Field
The utility model relates to a disk seat sealing technique field especially relates to an ultra-low temperature ball valve disk seat seal structure.
Background
The low-temperature ball valve is mainly suitable for chemical devices such as ethylene, liquefied natural gas and the like, and output liquid low-temperature media such as ethylene, liquid oxygen, liquid hydrogen and the like. The medium is not only inflammable and explosive, but also needs to be gasified at the temperature rise, and the gasification is hundreds of times of volume expansion. And the media have strong permeability and are easy to leak, and the processing and the manufacturing are difficult. The valve seat is a detachable surface component in the valve, is used for supporting the valve core at the full-closed position and forms a sealing pair. The diameter of the valve seat is the maximum flow diameter of the valve. The existing ultralow-temperature ball valve seat is usually fixed by screws when being connected, the screws are loosened for a long time and are easy to leak, and certain limitation exists, so that the problem is solved by designing an ultralow-temperature ball valve seat sealing structure.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing an ultra-low temperature ball valve seat sealing structure.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
ultralow temperature ball valve disk seat seal structure, including the ball valve, the equal fixed mounting in ball valve both sides has the connector, the welding of connector bottom has casing down, and casing top is connected with the casing down, placed the pipeline in casing and the last casing down, and the equal fixed mounting in casing and the last casing outside has the connection shell down, the connection shell internal rotation is connected with the screw rod, and the screw rod outside has the movable block through threaded connection, movable block one side all is connected with the clamp plate through casing and last casing down, and the connection shell one side that links to each other with last casing all rotates and is connected with the rotation axis, and the rotation axis passes through the connection shell and is connected with the screw rod, is equipped with the thalposis in the connection shell that links to each other with casing down, and the thalposis bottom is connected with the display screen.
Preferably, the lower casing and the upper casing are fixedly provided with connecting plates on two sides, the connecting plates are connected through hinges, one of the connecting plates is fixedly provided with a hasp on one side, and the hasp matched with the hasp is connected and installed on one side of the other connecting plate, so that not only is a sealing structure increased, but also the disassembly and assembly work is convenient.
Preferably, sealing gaskets are respectively paved between the lower shell and the upper shell and at the joints of the lower shell and the upper shell with the connecting port and the pipeline, so that the sealing performance is improved.
Preferably, the pressing plates are of arc-shaped structural designs, one side of each pressing plate is fixedly provided with a bolt, and a jack matched with the other pressing plate is formed in the other pressing plate, so that the two pressing plates can move simultaneously.
Preferably, pipeline one side all is equipped with flange, and has all seted up the connecting hole in the flange, clamp plate one side fixed mounting have with the locating pin of connecting hole adaptation, play the effect of location to the pipeline, avoid it to take place to deflect.
Preferably, the outer side of the rotating shaft is designed in a threaded structure, and is connected with a fastening nut through threads, so that the screw rod is fixed.
The utility model has the advantages that: the utility model discloses, utilize screw rod rotation control movable block and clamp plate to remove, fix a position and fix the pipeline through the clamp plate to play sealed effect, and be equipped with down casing and last casing, can form a sealed cavity externally, even take place to leak and also can continue to play sealed effect, and be furnished with the thalposis ware, confirm whether there is the leakage condition to take place through temperature variation, thereby in time carry out maintenance work, have certain practicality.
Drawings
Fig. 1 is a front view of the ultra-low temperature ball valve seat sealing structure provided by the utility model;
fig. 2 is a schematic front structural view of the ultra-low temperature ball valve seat sealing structure provided by the present invention;
fig. 3 is the utility model provides an ultra-low temperature ball valve disk seat seal structure's side structure schematic diagram.
In the figure: 1. a ball valve; 2. a connection port; 3. a lower housing; 4. an upper housing; 5. a connecting plate; 6. a pipeline; 7. a connecting shell; 8. a screw; 9. a moving block; 10. pressing a plate; 11. a rotating shaft; 12. a temperature sensor; 13. and a display screen.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example (b): referring to fig. 1-3, ultra-low temperature ball valve seat seal structure, including ball valve 1, the equal fixed mounting in ball valve 1 both sides has connector 2, the welding of connector 2 bottom has casing 3 down, and casing 3 top is connected with upper housing 4 down, pipeline 6 has been placed in casing 3 and the upper housing 4 down, and the equal fixed mounting in casing 3 and the upper housing 4 outside has connecting shell 7 down, connecting shell 7 internal rotation is connected with screw rod 8, and there is movable block 9 in the screw rod 8 outside through threaded connection, movable block 9 one side all is connected with clamp plate 10 through casing 3 and upper housing 4 down, connecting shell 7 one side that links to each other with upper housing 4 all rotates and is connected with rotation axis 11, and rotation axis 11 is connected with screw rod 8 through connecting shell 7, be equipped with temperature sensor 12 in the connecting shell 7 that links to each other with casing 3 down, and temperature sensor 12 bottom is connected with display screen 13.
Further, the two sides of the lower shell 3 and the two sides of the upper shell 4 are fixedly provided with connecting plates 5, the connecting plates 5 are connected through hinges, one side of one connecting plate 5 is fixedly provided with a hasp, and one side of the other connecting plate 5 is connected with a hasp matched with the hasp, so that a sealing structure is additionally arranged, and the disassembly and assembly work is convenient.
Further, sealing gaskets are laid at the joints of the lower shell 3 and the upper shell 4, the lower shell 3 and the upper shell 4 and the connecting port 2 and the pipeline 6, and are used for increasing the sealing performance.
Furthermore, the pressing plates 10 are designed to be arc-shaped, one side of one of the pressing plates 10 is fixedly provided with a bolt, and the other pressing plate 10 is internally provided with a jack matched with the bolt, so that the two pressing plates 10 can move simultaneously.
Further, 6 one sides of pipeline all are equipped with flange, and have all seted up the connecting hole in the flange, and 10 one sides of clamp plate fixed mounting have with the locating pin of connecting hole adaptation, play the effect of location to pipeline 6, avoid it to take place to deflect.
Furthermore, the outer side of the rotating shaft 11 is designed by adopting a thread structure, and is connected with a fastening nut through threads, so that the screw rod 8 is fixed.
The working principle is as follows: during the installation, need place pipeline 6 in 3 tops of lower casing, and meet with clamp plate 10, cover casing 4 after that, it is fixed with the hasp, connect through the bolt between the clamp plate 10 simultaneously, then rotate rotation axis 11, control screw 8 rotates, utilize the movement of helicitic texture control clamp plate 10, the flange that promotes pipeline 6 closely meets with connector 2, reuse fastening nut fixes, thereby accomplish the installation work, when taking place to leak, the temperature of cavity can reduce by a wide margin in casing 3 and the last casing 4 down, detect back with data transmission to display screen 13 with temperature sensor 12, make things convenient for the staff to confirm.
Those not described in detail in this specification are within the skill of the art.
The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the record of description and attached drawing, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, and detailed description is not repeated here.
The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims (6)

1. Ultralow temperature ball valve disk seat seal structure, including ball valve (1), its characterized in that, the equal fixed mounting in ball valve (1) both sides has connector (2), connector (2) bottom welding has casing (3) down, and casing (3) top is connected with upper housing (4) down, pipeline (6) have been placed in casing (3) and upper housing (4) down, and casing (3) and the equal fixed mounting in upper housing (4) outside have connection shell (7) down, connection shell (7) internal rotation is connected with screw rod (8), and has movable block (9) through threaded connection in the screw rod (8) outside, movable block (9) one side all is connected with clamp plate (10) through casing (3) down and upper housing (4), and connection shell (7) one side that links to each other with upper housing (4) all rotates and is connected with rotation axis (11), and rotation axis (11) are connected with screw rod (8) through connection shell (7), are equipped with temperature sensor (12) in the connection shell (7) that link to each other with lower casing (3) down, and are connected with display screen (12) bottom.
2. The ultra-low temperature ball valve seat sealing structure according to claim 1, characterized in that connecting plates (5) are fixedly installed on both sides of the lower casing (3) and the upper casing (4), the connecting plates (5) are connected with each other through hinges, a snap lock is fixedly installed on one side of one of the connecting plates (5), and a snap lock matched with the snap lock is installed on one side of the other connecting plate (5).
3. The ultra-low temperature ball valve seat sealing structure according to claim 1, characterized in that sealing gaskets are laid at the joints between the lower casing (3) and the upper casing (4) and the connecting port (2) and the pipeline (6).
4. The ultra-low temperature ball valve seat sealing structure of claim 1, characterized in that the pressure plates (10) are designed to be arc-shaped, one side of one of the pressure plates (10) is fixedly provided with a bolt, and the other pressure plate (10) is provided with a jack adapted to the bolt.
5. The ultra-low temperature ball valve seat sealing structure according to claim 1, characterized in that a connecting flange is arranged on one side of the pipeline (6), connecting holes are formed in the connecting flange, and a positioning pin matched with the connecting holes is fixedly arranged on one side of the pressing plate (10).
6. The ultra-low temperature ball valve seat sealing structure according to claim 1, characterized in that the outer side of the rotating shaft (11) is designed by a thread structure, and a fastening nut is connected by a thread.
CN202222254159.9U 2022-08-26 2022-08-26 Ultralow temperature ball valve seat sealing structure Active CN217951377U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222254159.9U CN217951377U (en) 2022-08-26 2022-08-26 Ultralow temperature ball valve seat sealing structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222254159.9U CN217951377U (en) 2022-08-26 2022-08-26 Ultralow temperature ball valve seat sealing structure

Publications (1)

Publication Number Publication Date
CN217951377U true CN217951377U (en) 2022-12-02

Family

ID=84211945

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222254159.9U Active CN217951377U (en) 2022-08-26 2022-08-26 Ultralow temperature ball valve seat sealing structure

Country Status (1)

Country Link
CN (1) CN217951377U (en)

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