A low-temperature emergency shut-off valve

Abstract

This utility model relates to a cryogenic emergency shut-off valve, comprising a base plate, a valve body, and protective frames. The valve body is mounted on the base plate, with its inlet and outlet ends facing left to right. A pair of symmetrical protective frames are mounted on the base plate, with their bottoms detachably connected to the base plate. The lower part of the valve body is enclosed between the two protective frames. A connector is provided at the joint between the two protective frames to connect the joint. The enclosure formed by the two protective frames has a notch for the upper part of the valve body and a pipe connecting the inlet and outlet ends of the valve body to pass through. This utility model has the advantages of good protection and convenient assembly, disassembly, and use.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a low-temperature emergency shut-off valve. Background Technology

[0002] Emergency shut-off valves, also known as safety shut-off valves, are valves that quickly close or open in the event of an emergency to prevent accidents. Cryogenic emergency shut-off valves are one type, featuring simple structure, light weight, and flexible operation, and are widely used in facilities handling cryogenic media such as liquid oxygen and liquid nitrogen.

[0003] Traditional cryogenic emergency shut-off valves lack corresponding protective structures against external forces. When an accident occurs, they are at high risk of being damaged by impacts from external objects, which is detrimental to safe use. Utility Model Content

[0004] The purpose of this utility model is to provide a low-temperature emergency shut-off valve, which has the advantages of good protection and convenient installation, disassembly and use.

[0005] The technical solution of this utility model is as follows:

[0006] A cryogenic emergency shut-off valve includes a base plate, a valve body, and protective frames. The valve body is mounted on the base plate, with its inlet and outlet ends facing left and right. A pair of symmetrical protective frames are mounted on the base plate, with their bottoms detachably connected to the base plate. The lower part of the valve body is enclosed between the two protective frames. A connector is provided at the joint between the two protective frames to connect the joint. The enclosure formed by the two protective frames has a notch for the upper part of the valve body and a pipe connecting the inlet and outlet ends of the valve body to pass through.

[0007] Preferably, the protective frame includes a horizontal plate and an arch plate. The horizontal plate is detachably connected to the bottom of the base plate along the left-right direction. The bottom of the horizontal plate is evenly provided with several arch plates that bend towards the center along the length direction. The lower part of the valve body is located between the arch plates on the front and rear sides. There is a gap between the tops of the front and rear opposing arch plates on the upper part of the valve body. The tops of the remaining front and rear opposing arch plates are spliced ​​together. The connecting component is a connecting screw. The splice of the top of the arch plate is provided with a screw hole. The splice between the two arch plates is connected by screwing the connecting screw into the overlapping screw hole.

[0008] Preferably, the protective frame further includes an arc-shaped groove. The top of the base plate is provided with several fixing platforms on the front and rear sides respectively. A cylindrical fixing rod is provided on the fixing platform. The fixing rod is along the left and right direction. The bottom of the horizontal plate is provided with an arc-shaped groove corresponding to the fixing platform. The arc-shaped groove of the arc-shaped groove matches the shape of the outer circumference of the fixing rod. The arc-shaped groove that locks the fixing rod is rotatably connected to the fixing rod.

[0009] Preferably, a limiting plate is provided on the inner side of the horizontal plate, and a limiting platform is provided on the top of the bottom plate on the inner side of the fixed platform. When the front and rear opposite arch plates are spliced ​​together, the limiting plate and the limiting platform abut against each other.

[0010] Preferably, the number of arc-shaped slots at the bottom of the horizontal plate is 3.

[0011] The beneficial technical effects of this utility model are as follows:

[0012] 1. The lower part of the valve body is protected by two protective frames that are joined together, which enhances the protection of the valve body and reduces the risk of the lower part of the valve body being hit by foreign objects.

[0013] 2. The joints between the protective frame and the base plate, as well as between the two protective frames, are detachable. When it is necessary to protect the valve body, the two protective frames can be installed, and when it is necessary to maintain the valve body, the two protective frames can be removed, making installation and removal flexible.

[0014] 3. Necessary gaps are left in the enclosure formed by the two protective frames, so that the staff can still operate the upper handle of the valve body and connect the pipeline to the inlet and outlet ends of the valve body after the protective frames are installed, making it convenient to use. Attached Figure Description

[0015] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0016] Appendix Figure 1 This is the front view of the present invention.

[0017] Appendix Figure 2 This is a top view of the present invention.

[0018] Appendix Figure 3 This is the left view of the present invention.

[0019] In the diagram: 1-base plate, 2-valve body, 3-protective frame, 4-horizontal plate, 5-arch plate, 6-connecting screw, 7-arc groove, 8-fixed platform, 9-fixed rod, 10-limiting plate, 11-limiting platform. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] Example:

[0022] like Figures 1 to 3 As shown, this embodiment provides a cryogenic emergency shut-off valve, including a base plate 1, a valve body 2, and a protective frame 3. The valve body 2 is mounted on the base plate 1, with the inlet and outlet ends of the valve body 2 in the left-right direction. A pair of symmetrical protective frames 3 are mounted on the base plate 1, with the bottom of the protective frames 3 detachably connected to the base plate 1. The lower part of the valve body 2 is enclosed between the two protective frames 3, and a connector for connecting the joint is provided at the joint between the two protective frames 3. The enclosure formed by the two protective frames 3 has a notch for the upper part of the valve body 2 to pass through, and for the pipes connecting the inlet and outlet ends of the valve body 2 to pass through.

[0023] Two protective frames 3, joined together front and back, protect the lower part of the valve body 2, enhancing its protection and reducing the risk of impact from external objects. The connections between the protective frames 3 and the base plate 1, as well as between the two protective frames 3, are detachable. The two protective frames 3 can be installed when protection of the valve body 2 is needed, and removed when maintenance is required, offering flexibility in installation and removal. Necessary notches are provided in the enclosure formed by the two protective frames 3, allowing operators to still operate the upper handle of the valve body 2 and connect pipes to the inlet and outlet ends of the valve body 2 even after the protective frames 3 are installed, ensuring convenient use.

[0024] Furthermore, the protective frame 3 includes a horizontal plate 4 and an arch plate 5. The horizontal plate 4 is detachably connected to the bottom of the base plate 1 along the left and right direction. The bottom of the horizontal plate 4 is evenly provided with several arch plates 5 that bend towards the middle along the length direction. The lower part of the valve body 2 is located between the arch plates 5 on the front and rear sides. There is a gap between the tops of the front and rear opposite arch plates 5 on the upper part of the valve body 2. The tops of the remaining front and rear opposite arch plates 5 are spliced ​​together. The connecting part is a connecting screw 6. The splicing point at the top of the arch plate 5 is provided with a screw hole. The splicing point between the two arch plates 5 is connected by screwing the connecting screw 6 into the overlapping screw holes.

[0025] A gap is left between the tops of the front and rear opposing arch plates 5 on the upper front and rear sides of the valve body 2, so as to leave an opening for the upper part of the valve body 2 to pass through. No arch plates 5 are arranged on the left and right sides of the valve body 2, so as to leave an opening for the pipe connecting the inlet end and the outlet end of the valve body 2 to pass through.

[0026] Furthermore, the protective frame 3 also includes an arc-shaped groove 7. The top of the base plate 1 has several fixing platforms 8 on the front and rear sides respectively. The fixing platforms 8 are provided with cylindrical fixing rods 9. The fixing rods 9 are arranged in the left and right directions. The bottom of the horizontal plate 4 is provided with an arc-shaped groove 7 corresponding to the fixing platform 8. The arc-shaped groove 7 matches the shape of the outer circumference of the fixing rod 9. The arc-shaped groove 7 that holds the fixing rod 9 is rotatably connected to the fixing rod 9.

[0027] The circular arc groove 7 is easy to install and remove from the fixed rod 9, reducing the difficulty of installing and removing the protective frame 3. The two protective frames 3 can be rotated around the fixed rod 9 to a position where they do not interfere with each other, improving the efficiency of installing and removing the protective frames 3. In addition, when it is necessary to expose the lower part of the valve body 2, it is only necessary to rotate the two protective frames 3 outwards, without having to remove the protective frames 3 from the fixed column, reducing the workload of installation and removal.

[0028] Furthermore, a limiting plate 10 is provided on the inner side of the horizontal plate 4, and a limiting platform 11 is provided on the top of the bottom plate 1 on the inner side of the fixed platform 8. When the front and rear opposite arch plates 5 are spliced ​​together, the limiting plate 10 and the limiting platform 11 abut against each other.

[0029] By using the limiting platform 11 and the limiting plate 10 together, it is convenient to position the two protective frames 3 at the angle where the tops of the front and rear opposite arch plates 5 abut each other, thereby improving the efficiency of the workers in connecting the two protective frames 3.

[0030] Furthermore, the number of arc-shaped slots 7 at the bottom of the horizontal plate 4 is 3.

[0031] Working principle and usage process of this utility model:

[0032] When installing the protective frame 3, first snap the arc-shaped slots 7 of the two protective frames 3 onto the corresponding fixing posts, then rotate the two protective frames 3 toward the middle until they are joined together, and finally screw the connecting screws 6 onto the joined part.

[0033] When removing the protective frame 3, first unscrew the connecting screw 6 at the joint, then rotate the two protective frames 3 outwards until they separate from each other, and finally pull the arc-shaped groove 7 of the protective frame 3 out of the fixing post.

[0034] The above are merely specific application examples of this utility model and do not constitute any limitation on the scope of protection of this utility model. All technical solutions formed by equivalent transformations or equivalent substitutions fall within the scope of protection of this utility model.

Claims

1. A cryogenic emergency shut-off valve, characterized by: The device includes a base plate, a valve body, and protective frames. The valve body is mounted on the base plate, with its inlet and outlet ends facing left and right. A pair of symmetrical protective frames are mounted on the base plate, with their bottoms detachably connected to the base plate. The lower part of the valve body is enclosed between the two protective frames. A connector is provided at the joint between the two protective frames to connect the joint. The enclosure formed by the two protective frames has a notch for the upper part of the valve body and the pipe connecting the inlet and outlet ends of the valve body to pass through.

2. A cryogenic emergency shut-off valve according to claim 1, characterized in that: The protective frame includes a horizontal plate and an arch plate. The horizontal plate is detachably connected to the bottom of the base plate along the left-right direction. The bottom of the horizontal plate is evenly provided with several arch plates that bend towards the center along the length direction. The lower part of the valve body is located between the arch plates on the front and rear sides. There is a gap between the tops of the front and rear opposing arch plates on the upper part of the valve body. The tops of the remaining front and rear opposing arch plates are spliced ​​together. The connecting part is a connecting screw. The splice of the top of the arch plate is provided with a screw hole. The splice between the two arch plates is connected by screwing the connecting screw into the overlapping screw hole.

3. A cryogenic emergency shut-off valve according to claim 2, characterized in that: The protective frame also includes an arc-shaped groove. The top of the base plate has several fixing platforms on the front and rear sides. The fixing platforms are provided with cylindrical fixing rods. The fixing rods are positioned along the left and right directions. The bottom of the horizontal plate is provided with an arc-shaped groove corresponding to the fixing platform. The arc-shaped groove of the arc-shaped groove matches the shape of the outer circumference of the fixing rod. The arc-shaped groove that holds the fixing rod is rotatably connected to the fixing rod.

4. A cryogenic emergency shut-off valve according to claim 3, characterized in that: A limiting plate is provided on the inner side of the horizontal plate, and a limiting platform is provided on the top of the bottom plate on the inner side of the fixed platform. When the front and rear opposite arch plates are spliced ​​together, the limiting plate and the limiting platform abut against each other.

5. A cryogenic emergency shut-off valve according to claim 3, characterized in that: The number of arc-shaped slots at the bottom of the horizontal plate is 3.

Images