Modularized helium isolating valve

Abstract

The utility model relates to the technical field of nuclear energy, and discloses a modularized helium isolating valve which comprises two valves, the close sides of the two valves are both fixedly connected with transfer pipes, the close sides of the outer walls of the transfer pipes are both rotationally connected with fixing pipes, the outer walls of the two fixing pipes are connected with connecting pipes through limiting assemblies, and the connecting pipes are fixedly connected with the valves. The two transfer pipes are used for connecting two valves, a first insertion block and a second insertion block are fixedly connected to the left end and the right end of the connecting pipe, first insertion grooves are formed in the close ends of the two transfer pipes, second insertion grooves are formed in the close ends of the two transfer pipes, and the outer walls of the first insertion blocks are connected with the inner walls of the first insertion grooves in an inserted mode. According to the utility model, the limiting pipe is screwed to be connected with the outer wall of the fixed pipe, and when the valve is rotated according to the construction requirement of the valve and the rotation angle is proper, the limiting screws are screwed to abut against the outer wall of the transfer pipe, so that the rotation angle of the valve is fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of nuclear energy, in particular to a modular helium isolation valve. Background Art

[0002] Nuclear-grade helium valves are specially designed for use in nuclear energy and high-security environments, primarily used to control the flow and isolation of helium. Nuclear-grade helium valves are a widespread and high-volume pressure-bearing device in high-temperature gas-cooled reactors (HTGRs). They must operate under high-temperature and high-pressure conditions and play a vital role in ensuring the normal, stable, and safe operation of HTGRs. Due to their high reliability and durability, they typically require minimal maintenance, reducing long-term operating costs.

[0003] Existing valves are typically connected in straight lines. When the connection environment changes, these modular valves can only be adjusted by connecting them to other inclined pipes, which is very troublesome. Furthermore, the sealing performance of existing valve connections is poor. To address this technical problem, this application proposes a modular helium isolation valve. Utility Model Content

[0004] The purpose of the utility model is to address the shortcomings of the prior art and to propose a modular helium isolation valve. By screwing a limit tube connected to the outer wall of a fixed tube, the valve is rotated according to the construction requirements of the valve. When the rotation angle is appropriate, the limit screws are screwed so that multiple limit screws press against the outer wall of the transfer tube, so that the valve rotation angle is fixed, and there is no need to adjust the angle by connecting other inclined pipes.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A modular helium isolation valve comprises two valves, wherein the adjacent sides of the two valves are fixedly connected to a transfer tube, and the adjacent sides of the outer walls of the two transfer tubes are rotatably connected to a fixed tube. The outer walls of the two fixed tubes are connected to a connecting tube via a limit assembly for connecting the two valves. The left and right ends of the connecting tubes are fixedly connected to a first plug block and a second plug block. The adjacent ends of the two transfer tubes are each provided with a first slot, and the adjacent ends of the two transfer tubes are each provided with a second slot. The outer wall of the first plug block is plugged into the inner wall of the first slot, and the outer wall of the second plug block is plugged into the inner wall of the second slot. The adjacent sides of the first plug block and the second plug block are connected by a sealing assembly for increasing the sealing performance of the gap between the inner wall of the first slot and the inner wall of the second slot.

[0007] Furthermore, the limiting assembly includes limiting tubes fixedly connected to both ends of the outer wall of the connecting tube, the inner wall of the limiting tube is threadedly connected to the outer wall of the fixed tube, and the outer wall of the limiting tube is threadedly connected with a plurality of limiting screws.

[0008] Furthermore, the outer wall of the fixing tube is threadedly connected to the outer wall of the limiting screw, and a plurality of the limiting screws are in contact with the outer wall of the transfer tube at one end.

[0009] Furthermore, a plurality of grooves are formed on the outer wall of the transfer tube.

[0010] Furthermore, the first plug-in block is located outside the second plug-in block.

[0011] Furthermore, the sealing assembly includes a plurality of sealing strips connected to the inner wall of the first plug-in block, a plurality of rubber strips are fixedly connected to the outer wall of the second plug-in block, a plurality of first sealing grooves are opened on the inner side of the inner wall of the first slot, and a plurality of second sealing grooves are opened on the outer side of the inner wall of the second slot.

[0012] Furthermore, the outer wall of the sealing strip is plugged into the inner wall of the first sealing groove, and the outer wall of the rubber strip is plugged into the inner wall of the second sealing groove.

[0013] The utility model has the following beneficial effects:

[0014] In the utility model, the limit tube is connected to the outer wall of the fixed tube by screwing, and the valve is rotated according to the construction requirements of the valve. When the rotation angle is appropriate, the limit screws are screwed so that multiple limit screws are pressed against the outer wall of the transfer tube, so that the valve rotation angle is fixed, and there is no need to adjust the angle by connecting other inclined pipes.

[0015] In the utility model, the resistance to gas flowing into the gap of the second slot is increased by the rubber strip and the second sealing groove, and the resistance to gas flowing into the gap of the first slot is increased by the sealing strip and the first sealing groove, thereby preventing gas from flowing into the gap and increasing the sealing to prevent other leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional diagram of a modular helium isolation valve proposed in the present invention;

[0017] Figure 2 This is a schematic diagram of the first plug-in block of a modular helium isolation valve proposed in the present invention;

[0018] Figure 3 This is a schematic diagram of the second plug-in block of a modular helium isolation valve proposed in the present invention;

[0019] Figure 4 This is a schematic diagram of the second sealing groove of a modular helium isolation valve proposed in the present invention;

[0020] Figure 5 This is a schematic diagram of a sealing strip of a modular helium isolation valve proposed in the present invention;

[0021] Figure 6This is a schematic diagram of a fixed pipe of a modular helium isolation valve proposed in the present invention.

[0022] Legend:

[0023] 1. Valve; 2. Connecting pipe; 3. Transfer pipe; 4. Limiting pipe; 5. Limiting screw; 6. First plug-in block; 7. Second plug-in block; 8. First sealing groove; 9. Second sealing groove; 10. Sealing strip; 11. Rubber strip; 12. Fixing pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Reference Figure 1 、 Figure 2 and Figure 6 The utility model provides an embodiment: a modular helium isolation valve, comprising two valves 1, each of which is fixedly connected to a transfer tube 3 on one side near the two valves 1, and a pre-installed tube for connecting the two valves 1; a fixed tube 12 is rotatably connected to a side near the outer wall of the transfer tube 3, and both ends of the outer wall of the connecting tube 2 are fixedly connected to a limiting tube 4, and the inner wall of the limiting tube 4 is threadedly connected to the outer wall of the fixing tube 12, and the valve 1 and the connecting tube 2 are connected through the fixing tube 12 and the limiting tube 4; a plurality of limiting screws 5 are threadedly connected to the outer wall of the limiting tube 4, and the outer wall of the fixing tube 12 is threadedly connected to the outer wall of the limiting screw 5, and the adjacent ends of the plurality of limiting screws 5 abut against the outer wall of the transfer tube 3. When the limiting screws 5 are turned, the plurality of limiting screws 5 abut against the outer wall of the transfer tube 3, so that the rotation angle of the valve 1 is fixed, so as to connect the two valves 1, and a plurality of grooves are opened on the outer wall of the transfer tube 3 to increase friction.

[0026] Reference Figure 3-Figure 5, the left and right ends of the connecting pipe 2 are fixedly connected with the first plug-in block 6 and the second plug-in block 7, the two transfer pipes 3 are each provided with a first slot at one end thereof, and the two transfer pipes 3 are each provided with a second slot at one end thereof, the outer wall of the first plug-in block 6 is plugged into the inner wall of the first slot, the outer wall of the second plug-in block 7 is plugged into the inner wall of the second slot, the first plug-in block 6 is located on the outside of the second plug-in block 7, the sealing strip 10 on the inner wall of the first plug-in block 6, the outer wall of the second plug-in block 7 is fixedly connected with a plurality of rubber strips 11, the inner wall of the first slot is provided with a plurality of first sealing grooves 8, the outer wall of the inner wall of the second slot is provided with a plurality of first sealing grooves A plurality of second sealing grooves 9 are provided, and the outer wall of the sealing strip 10 is plugged into the inner wall of the first sealing groove 8, and the outer wall of the sealing strip 10 abuts against the inner wall of the first sealing groove 8, thereby increasing the resistance of gas flowing into the gap of the first slot through the sealing strip 10 and the first sealing groove 8; the outer wall of the rubber strip 11 is plugged into the inner wall of the second sealing groove 9, so that the outer wall of the rubber strip 11 abuts against the inner wall of the second sealing groove 9, thereby increasing the resistance of gas flowing into the gap of the second slot through the rubber strip 11 and the second sealing groove 9 to increase the sealing performance of the gap between the inner wall of the first slot and the inner wall of the second slot.

[0027] Working principle: When it is necessary to connect two valves 1, insert the connecting pipe 2 into the first slot and the second slot through the first plug block 6 and the second plug block 7 to connect the connecting pipe 2 and the transfer pipe 3, screw the limit pipe 4 to connect it with the outer wall of the fixed pipe 12, rotate the valve 1 according to the construction requirements of the valve 1, when the rotation angle is appropriate, screw the limit screw 5 so that multiple limit screws 5 are against the outer wall of the transfer pipe 3, so that the rotation angle of the valve 1 is fixed, insert the first plug block 6 and the second plug block 7 into the first slot and the second slot, so that the outer wall of the rubber strip 11 abuts against the inner wall of the second sealing groove 9, and the outer wall of the sealing strip 10 abuts against the inner wall of the first sealing groove 8, and the resistance of the gas flowing into the gap from the second slot is increased by the rubber strip 11 and the second sealing groove 9, and the resistance of the gas flowing into the gap from the first slot is increased by the sealing strip 10 and the first sealing groove 8, thereby preventing gas from flowing in from the gap and increasing the sealing to prevent other leakage.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A modular helium isolation valve, characterized in that: The invention comprises two valves (1), wherein the two valves (1) are fixedly connected to a transfer pipe (3) on the adjacent side, and the outer wall of the transfer pipe (3) is rotatably connected to a fixed pipe (12), and the outer walls of the two fixed pipes (12) are connected to a connecting pipe (2) through a limit assembly for connecting the two valves (1), and the left and right ends of the connecting pipe (2) are fixedly connected to a first plug-in block (6) and a second plug-in block (7), and the adjacent ends of the two transfer pipes (3) are provided with a first slot, and the adjacent ends of the two transfer pipes (3) are provided with a second slot, the outer wall of the first plug-in block (6) is plugged into the inner wall of the first slot, and the outer wall of the second plug-in block (7) is plugged into the inner wall of the second slot, and the adjacent sides of the first plug-in block (6) and the second plug-in block (7) are connected through a sealing assembly for increasing the sealing performance of the gap between the inner wall of the first slot and the inner wall of the second slot.

2. A modular helium isolation valve according to claim 1, characterized in that: The limiting assembly comprises limiting tubes (4) fixedly connected to both ends of the outer wall of the connecting tube (2); the inner wall of the limiting tube (4) is threadedly connected to the outer wall of the fixed tube (12); and the outer wall of the limiting tube (4) is threadedly connected to a plurality of limiting screws (5).

3. A modular helium isolation valve according to claim 2, characterized in that: The outer wall of the fixed tube (12) is threadedly connected to the outer wall of the limiting screw (5), and the adjacent ends of the plurality of limiting screws (5) are in contact with the outer wall of the transfer tube (3).

4. A modular helium isolation valve according to claim 3, characterized in that: The outer wall of the transfer tube (3) is provided with a plurality of grooves.

5. The modular helium isolation valve according to claim 1, characterized in that: The first plug-in block (6) is located outside the second plug-in block (7).

6. The modular helium isolation valve according to claim 1, characterized in that: The sealing assembly comprises a plurality of sealing strips (10) connected to the inner wall of the first insert (6), a plurality of rubber strips (11) fixedly connected to the outer wall of the second insert (7), a plurality of first sealing grooves (8) being provided on the inner side of the inner wall of the first slot, and a plurality of second sealing grooves (9) being provided on the outer side of the inner wall of the second slot.

7. The modular helium isolation valve according to claim 6, characterized in that: The outer wall of the sealing strip (10) is plugged into the inner wall of the first sealing groove (8), and the outer wall of the rubber strip (11) is plugged into the inner wall of the second sealing groove (9).

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