Gasket for new energy light water reactor

Abstract

The utility model relates to the technical field of light-water reactors, and discloses a gasket for a new energy light-water reactor, which comprises a protective device, a sealing device is arranged in the protective device, the protective device comprises a lead ring and a lead plate arranged in the lead ring, a threaded connection through cavity is formed in the lead ring, a through groove is formed in the front side of the lead ring, and the lead plate is arranged in the through groove. A groove is formed in the position, located on the outer side of the through groove, in the lead ring, the lead plate is arranged in the lead ring in a penetrating and inserting mode through the groove, and mounting grooves are formed in the two sides of the lead plate. According to the gasket for the new energy light water reactor, sealing during connection between pipelines is achieved through the arrangement of the sealing device, the sealing device is protected through the arrangement of the protection device, and the situation that in actual use, rays penetrate through the sealing device and leak out, and consequently safety risks are caused is avoided; and through the arrangement of the threaded connection through cavity, connection between the lead ring and the pipeline flange is achieved, overall installation is facilitated, and then the sealing device is limited.

Description

Technical Field

[0001] The utility model relates to the technical field of light water reactors, in particular to a gasket for a new energy light water reactor. Background Art

[0002] A light water reactor is a reactor that uses a mixture of water and steam as a coolant and moderator. It is a way to peacefully use nuclear energy. Light water reactors can be divided into pressurized water reactors and boiling water reactors based on the way nuclear fission heat energy is carried out within the reactor. These are the two types of reactors used by most nuclear power plants in the world.

[0003] In actual use, a light water reactor needs to use a conduit to send out the generated steam, and a sealing gasket is often required at the connection between the pipes that transport the steam. A Chinese patent discloses a water-swellable rubber sealing gasket with high sealing performance (authorization announcement number CN216200470U). This patented technology can push the rubber extrusion ring out of the fitting groove after the force applied by the threaded connection ring is tightened, and use the extruded rubber extrusion ring to fit the surface of the pipe to enhance the sealing effect of the pipe, and avoid the rubber gasket from being unable to recover quickly due to long-term deformation and aging, resulting in a gap between the gasket and the pipe connection, causing water to seep out of the pipe.

[0004] Although this solution can achieve sealing in actual use, no protective device is set, which causes the internal radioactive substances to radiate out when the water vapor from the reactor is transported, thus affecting safety and failing to meet actual use needs.

[0005] In order to solve the above problems, we have made improvements and proposed gaskets for new energy light water reactors. Utility Model Content

[0006] The purpose of the utility model is to provide a gasket for a new energy light water reactor to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A gasket for a new energy light water reactor comprises a protective device, wherein a sealing device is arranged inside the protective device;

[0009] The protective device comprises a lead ring and a lead plate arranged inside the lead ring, and a threaded connection cavity is opened inside the lead ring.

[0010] As a further solution of the utility model: a through groove is provided on the front side of the lead ring, a groove is provided inside the lead ring and outside the through groove, and the lead plate is inserted into the inside of the lead ring through the groove.

[0011] As a further solution of the utility model: installation grooves are provided on both sides of the lead plate, bolts are inserted into the installation grooves, and the rear sides of the bolts are rotationally connected to the lead ring through threads.

[0012] As a further solution of the utility model: the sealing device includes a heat-resistant rubber pad arranged inside the lead ring and a lead limiting ring arranged inside the heat-resistant rubber pad, the front side of the lead limiting ring is connected to a conduit, and the conduit passes through the heat-resistant rubber pad and extends to the front side of the heat-resistant rubber pad.

[0013] As a further solution of the utility model: a sealing plate is arranged inside the conduit, and a blocking ring is fixedly installed inside the conduit and on the front side of the sealing plate.

[0014] As a further solution of the utility model: a limit rod is fixedly installed inside the conduit, a mounting rod is inserted inside the limit rod, and the rear side of the mounting rod is fixedly connected to the front side of the sealing plate.

[0015] As a further solution of the utility model: a spring is sleeved on the outer side of the mounting rod, and the rear side of the spring is in contact with the front side of the blocking ring.

[0016] As a further solution of the utility model: a heat-resistant rubber sealing pad is fixedly installed on the front side of the sealing plate, and the front side of the heat-resistant rubber sealing pad is in contact with the rear side of the blocking ring.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model realizes sealing when connecting pipes by setting a sealing device, and protects the sealing device by setting a protective device to avoid radiation leakage through the sealing device during actual use, thereby preventing safety hazards. The connection between the lead ring and the pipe flange is realized by setting a threaded connection cavity, which is convenient for overall installation and thus realizes the limiting of the sealing device.

[0019] 2. The utility model realizes sealing between pipes by setting a heat-resistant rubber pad, supports and stabilizes the heat-resistant rubber pad by setting a lead limit ring, and simultaneously realizes installation of the conduit, and further blocks the leakage of radiation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the gasket for the new energy light water reactor;

[0021] Figure 2 This is a schematic diagram of the lead ring structure in the gasket for new energy light water reactor;

[0022] Figure 3This is a schematic diagram of the lead plate structure in the gasket for new energy light water reactor;

[0023] Figure 4 This is a schematic diagram of the sealing device structure in the gasket for new energy light water reactor;

[0024] Figure 5 This is a schematic diagram of the sealing device structure in the gasket for new energy light water reactor;

[0025] Figure 6 For new energy light water reactor gasket Figure 5 Enlarged structural diagram at A in the middle.

[0026] In the figure: 1. protective device; 101. lead ring; 102. threaded connection cavity; 103. lead plate; 104. groove; 105. through slot; 106. bolt; 107. mounting slot; 2. sealing device; 201. heat-resistant rubber pad; 202. conduit; 203. lead limiting ring; 204. sealing plate; 205. heat-resistant rubber sealing pad; 206. limiting rod; 207. spring; 208. mounting rod; 209. blocking ring. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the implementation mode of the utility model clearer, the technical solution in the implementation mode of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation mode of the utility model. Obviously, the implementation mode described is a part of the implementation mode of the utility model, not all the implementation modes. Based on the implementation mode of the utility model, all other implementation modes obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example

[0029] See also Figure 1 , 2 and 3, a gasket for a new energy light water reactor, comprising a protective device 1, wherein a sealing device 2 is arranged inside the protective device 1;

[0030] The protective device 1 includes a lead ring 101 and a lead plate 103 arranged inside the lead ring 101 . A threaded connection cavity 102 is opened inside the lead ring 101 .

[0031] A through slot 105 is provided on the front side of the lead ring 101, and a groove 104 is provided inside the lead ring 101 and on the outside of the through slot 105. The lead plate 103 is inserted into the lead ring 101 through the groove 104, and the catheter 202 is accommodated by the cooperation between the groove 104 and the through slot 105. The through slot 105 is sealed by the cooperation between the lead plate 103 and the groove 104 to prevent the radiation from leaking through the through slot 105 and causing safety hazards. Installation slots 107 are provided on both sides of the lead plate 103, and bolts 106 are inserted inside the installation slots 107. The rear side of the bolt 106 is rotatably connected to the lead ring 101 through a thread. The bolt 106 is accommodated by the setting of the installation slot 107, and the connection between the lead plate 103 and the lead ring 101 is achieved by the setting of the bolt 106. At the same time, it is convenient to disassemble the lead plate 103 and perform related operations on the catheter 202.

[0032] See also Figure 1 , 4 , 5 and 6, gaskets for new energy light water reactors, the sealing device 2 includes a heat-resistant rubber pad 201 arranged inside the lead ring 101 and a lead limiting ring 203 arranged inside the heat-resistant rubber pad 201, the front side of the lead limiting ring 203 is connected with a conduit 202, the conduit 202 penetrates the heat-resistant rubber pad 201 and extends to the front side of the heat-resistant rubber pad 201, the sealing between the pipelines is achieved by the setting of the heat-resistant rubber pad 201, the heat-resistant rubber pad 201 is supported and stabilized by the setting of the lead limiting ring 203, and the conduit 202 is installed at the same time, and the leakage of radiation is further blocked.

[0033] A sealing plate 204 is provided inside the conduit 202, and a blocking ring 209 is fixedly installed inside the conduit 202 and on the front side of the sealing plate 204. The sealing plate 204 and the blocking ring 209 cooperate with each other to achieve sealing of the conduit 202 to prevent gas or liquid filled in the heat-resistant rubber pad 201 from leaking out. By filling gas or liquid into the heat-resistant rubber pad 201, the gas or liquid expands due to heat and pushes the heat-resistant rubber pad 201 to be tightly connected with both sides of the pipeline to increase the connection sealing. A limiting rod 206 is fixedly installed inside the conduit 202, and a mounting rod 208 is inserted inside the limiting rod 206. The rear side of the mounting rod 208 is fixedly connected to the front side of the sealing plate 204. The mounting rod 208 is installed by setting the limiting rod 206, and the sealing plate 204 is fixedly limited by the setting of the mounting rod 208, thereby increasing the stability of the sealing plate 204 to prevent gas or liquid from leaking out.

[0034] A spring 207 is sleeved on the outer side of the mounting rod 208, and the rear side of the spring 207 contacts the front side of the blocking ring 209. The spring 207 pushes the limiting rod 206 so that the reaction force acts on the front side of the mounting rod 208, thereby pushing the mounting rod 208 to pull the sealing plate 204 to move forward, thereby increasing the squeezing of the sealing plate 204 on the heat-resistant rubber sealing pad 205 and thereby increasing the sealing between the two. A heat-resistant rubber sealing pad 205 is fixedly installed on the front side of the sealing plate 204, and the front side of the heat-resistant rubber sealing pad 205 contacts the rear side of the blocking ring 209. The sealing between the blocking ring 209 and the sealing plate 204 is achieved by the setting of the sealing plate 204 to prevent the gas or liquid on the outside from affecting the sealing of the heat-resistant rubber pad 201.

[0035] The working principle of the utility model is: a heat-resistant rubber pad 201 is placed inside the lead ring 101, and at the same time, the conduit 202 is made to penetrate into the inside of the through groove 105. There are two situations for filling the heat-resistant rubber pad 201 with gas or liquid. The first is to directly fill the gas or liquid into the heat-resistant rubber pad 201 for direct use during installation. The second is to fill the gas or liquid into the heat-resistant rubber pad 201 when the sealing performance of the heat-resistant rubber pad 201 decreases after a period of use. The gas or liquid expands under the temperature of the steam inside the pipeline and then expands the heat-resistant rubber pad 201 to further increase the sealing performance. When the gas or liquid is filled into the heat-resistant rubber pad 201, the bolts 106 are first removed. The lead plate 103 is taken out from the inside of the groove 104, the guide tube of the gas or liquid is passed through the inside of the through groove 105 and the mounting rod 208 is squeezed so that the mounting rod 208 pushes the sealing plate 204 to move toward the inside of the heat-resistant rubber pad 201, thereby separating the sealing plate 204 and the heat-resistant rubber sealing pad 205 from the blocking ring 209. At this time, the inside of the heat-resistant rubber pad 201 is connected through the conduit 202, and the gas or liquid is filled into the inside of the heat-resistant rubber pad 201 through the conduit 202. The squeezing of the mounting rod 208 is released, and the mounting rod 208 is pulled under the action of the spring 207 to drive the sealing plate 204 and the heat-resistant rubber sealing pad 205 to move to one side of the blocking ring 209 to seal the conduit 202.

[0036] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gasket for a new energy light water reactor, comprising a protective device (1), characterized in that: A sealing device (2) is provided inside the protective device (1); The protective device (1) comprises a lead ring (101) and a lead plate (103) arranged inside the lead ring (101); a threaded connection cavity (102) is provided inside the lead ring (101).

2. The gasket for new energy light water reactor according to claim 1 is characterized in that: A through slot (105) is provided on the front side of the lead ring (101), a groove (104) is provided inside the lead ring (101) and outside the through slot (105), and the lead plate (103) is inserted into the inside of the lead ring (101) through the groove (104).

3. The gasket for new energy light water reactor according to claim 1, characterized in that: Both sides of the lead plate (103) are provided with mounting grooves (107), and bolts (106) are inserted into the interior of the mounting grooves (107). The rear side of the bolts (106) is rotatably connected to the lead ring (101) via threads.

4. The gasket for new energy light water reactor according to claim 1, characterized in that: The sealing device (2) comprises a heat-resistant rubber pad (201) arranged inside the lead ring (101) and a lead limiting ring (203) arranged inside the heat-resistant rubber pad (201); the front side of the lead limiting ring (203) is connected to a conduit (202); the conduit (202) penetrates the heat-resistant rubber pad (201) and extends to the front side of the heat-resistant rubber pad (201).

5. The gasket for new energy light water reactor according to claim 4 is characterized in that: A sealing plate (204) is disposed inside the conduit (202), and a blocking ring (209) is fixedly installed inside the conduit (202) and on the front side of the sealing plate (204).

6. The gasket for new energy light water reactor according to claim 5, characterized in that: A limiting rod (206) is fixedly installed inside the conduit (202), a mounting rod (208) is inserted into the limiting rod (206), and the rear side of the mounting rod (208) is fixedly connected to the front side of the sealing plate (204).

7. The gasket for new energy light water reactor according to claim 6 is characterized in that: A spring (207) is sleeved on the outer side of the mounting rod (208), and the rear side of the spring (207) is in contact with the front side of the blocking ring (209).

8. The gasket for new energy light water reactor according to claim 5, characterized in that: A heat-resistant rubber sealing pad (205) is fixedly mounted on the front side of the sealing plate (204), and the front side of the heat-resistant rubber sealing pad (205) is in contact with the rear side of the blocking ring (209).

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