Anti-contamination instrument water filling and air exhausting tool

Abstract

The utility model provides an anti-contamination instrument water filling and air exhausting tool which comprises an equipment body, a lower sealing component, an upper sealing component and a drainage pipeline, a pipeline channel is formed in one end of the equipment body, and the lower sealing component and the upper sealing component are connected to the two ends of the pipeline channel of the equipment body respectively. The drainage pipeline is connected to the upper sealing component and communicated with the pipeline channel of the equipment body, and the pipeline channel of the equipment body is connected with the instrument water filling and exhausting connector through the lower sealing component. According to the utility model, the equipment main body made of a radiation-resistant material and the built-in rotating ratchet wheel are matched with the instrument pollution discharge plug, and are matched with the two built-in sliding sealing rings in the lower sealing part to be connected with the instrument pollution discharge port, so that the radioactive medium is drained, and the pressurized radioactive medium can be effectively prevented from splashing; the safety problem caused by the fact that radioactive media in a pipeline splash or flow out when a traditional water filling and air exhausting tool such as an open spanner is used for instrument water filling and air exhausting is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to nuclear power equipment technical field especially relates to a prevent instrument water filling exhaust tool. BACKGROUND

[0002] In the operation process of nuclear power plant, often need to carry out water filling and exhaust operation to the instrument. Because the nuclear island environment exists radioactive material, and the pipeline exists big pressure, the traditional water filling and exhaust tool (open wrench) can cause the radioactive medium in the pipeline to splash or flow out when instrument water filling and exhaust, cannot effectively collect, not only can cause the personnel to be contaminated, also can cause the diffusion of radioactive medium, causes the serious safety problem.

[0003] In view prior to this, need a kind of special tool that can be safely, efficiently carried out water filling and exhaust operation under the environment of radioactive plant of nuclear power plant, and with good personnel anti-contamination performance.

[0004] It should be noted that the information disclosed in the above BACKGROUND section is only used to strengthen the understanding of the background of the utility model, and does not constitute any limitation on the utility model. UTILITY MODEL CONTENT

[0005] In view of the above-mentioned shortcomings of the prior art, the utility model provides a kind of prevent instrument water filling exhaust tool, by using the equipment main body of radiation-resistant material and its built-in rotating ratchet and instrument blow-off plug match, cooperate the built-in two sliding sealing rings in lower sealing component and connect with instrument blow-off, drain radioactive medium, can effectively prevent the splash of radioactive medium under pressure, to solve the problem of safety caused by the splash or flow of radioactive medium in the pipeline when the traditional water filling and exhaust tool such as open wrench instrument water filling and exhaust.

[0006] The utility model provides a kind of prevent instrument water filling exhaust tool, including equipment main body, lower sealing component, upper sealing component and drainage pipeline, equipment main body one end is equipped with pipeline passage, lower sealing component and upper sealing component are connected in the pipeline passage both ends of equipment main body, drainage pipeline is connected on upper sealing component, and with the pipeline passage of equipment main body intercommunication, the pipeline passage of equipment main body is connected the interface of instrument water filling exhaust by lower sealing component.

[0007] In an embodiment of the utility model, the equipment main body is the metal alloy material of radiation resistance.

[0008] In an embodiment of the utility model, rotating ratchet and reversing mechanism are installed in the pipeline passage of equipment main body, and rotating ratchet is adjusted to rotate along clockwise direction or counterclockwise direction by reversing mechanism.

[0009] In an embodiment of the utility model, the inner wall of the rotating ratchet is provided with a screw cap clamping hole shape, and the screw cap clamping hole shape is matched with the plug contour of the instrument water filling and exhaust interface.

[0010] In an embodiment of the utility model, the inner diameter of the lower sealing part is greater than the inner diameter of the rotating ratchet.

[0011] In an embodiment of the utility model, the lower sealing part comprises a threaded part connected with the pipeline channel of the equipment main body and a sleeving part connected with the instrument water filling and exhaust interface.

[0012] In an embodiment of the utility model, the threaded part is an external thread structure, and the pipeline channel end of the equipment main body connected with the lower sealing part is provided with an internal thread structure matched with the threaded part.

[0013] In an embodiment of the utility model, a sealing gasket is arranged between the threaded part and the pipeline channel connected with the equipment main body, and a sliding sealing ring connected with the instrument water filling and exhaust interface is arranged in the sleeving part.

[0014] In an embodiment of the utility model, the upper sealing part is connected with the equipment main body in a welding mode and connected with the drainage pipeline through a straight-through joint.

[0015] In an embodiment of the utility model, the drainage pipeline is made of transparent material.

[0016] The utility model discloses the beneficial effects: through adopting the equipment main body of radiation resistant material and the built-in rotating ratchet thereof and instrument blow-off plug matching, two sliding sealing rings are arranged in the lower sealing part of the equipment main body and connected with the instrument blow-off port, radioactive medium is drained, the structure is simple, convenient to use, can effectively prevent the splash of radioactive medium under pressure, avoids personnel contamination, and improves work efficiency, reduces the length of time of staff in radioactive environment, reduces the radiation dose of personnel.

[0017] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings incorporated into the description and forming part of the description show the embodiments consistent with the utility model, and are used together with the description to explain the principle of the utility model. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the drawings without creative labor for ordinary skilled in the art. In the drawings:

[0019] Fig. 1 It is a schematic view of the instrument water filling and exhaust tool in the utility model;

[0020] Fig. 2 Figure is the schematic diagram of the instrument water filling and exhaust tool in the utility model;

[0021] Fig. 3 Figure is the schematic diagram of the instrument water filling and exhaust tool in the utility model.

[0022] In the figure: 100, equipment main body; 101, rotating ratchet; 102, reversing mechanism; 200, lower sealing component; 201, threaded part; 202, sleeve part; 300, upper sealing component; 400, drainage pipeline. DETAILED DESCRIPTION

[0023] The above description is only used to explain the specific embodiments of the present application. Those skilled in the art can easily understand other advantages and effects of the present application from the above description. The present application can be implemented or applied in other different embodiments, and each detail in the specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present application are used to describe specific embodiments, but not to limit the protection scope of the present application.

[0024] Please refer to Figs. 1-3 It should be understood that the structures, proportions, sizes, etc. shown in the drawings of the specification are only used to understand and read the content disclosed in the specification by those skilled in the art, and do not limit the conditions that can be implemented by the present application, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms used in the specification, such as position, quantity relationship, etc., are only used for clear understanding of the specification, and not to limit the scope of the present application. The change or adjustment of the relative relationship, without substantial change of technical content, is also considered as the scope of the present application.

[0025] Please refer to Figs. 1-2The utility model provides a kind of anti-staining instrument water filling exhaust tool, including equipment main body 100, lower sealing component 200, upper sealing component 300 and drainage pipeline 400, equipment main body 100 one end is equipped with pipeline passage, lower sealing component 200 and upper sealing component 300 are connected respectively in the pipeline passage both ends of equipment main body 100, drainage pipeline 400 is connected on upper sealing component 300, and with the pipeline passage of equipment main body 100 intercommunication, the pipeline passage of equipment main body 100 is connected the interface of instrument water filling exhaust by lower sealing component 200.Equipment main body 100 is the metal alloy material of radiation resistance.

[0026] Specifically, in the utility model embodiment, through the pipeline passage of equipment main body 100, the instrument pipeline that exists contamination risk in nuclear power equipment is carried out water filling exhaust operation.It is connected with lower sealing component 200 to ensure the connection sealing between instrument water filling exhaust interface, and its connection upper sealing component 300 ensures that the discharge medium is sealed transmission to drainage pipeline 400.Equipment main body 100 and its lower sealing component 200, upper sealing component 300 can adopt the metal alloy material of radiation resistance, avoid the radiation diffusion of radioactive medium possibly existing in discharge medium while sealing discharge medium.

[0027] More specifically, in use, by connecting lower sealing component 200 to instrument water filling exhaust interface, and make the equipment main body 100 and its pipeline passage also form intercommunication, when operating opening instrument water filling exhaust interface, can make discharge medium therein be limited in lower sealing component 200, the pipeline passage of equipment main body 100, upper sealing component 300 and drainage pipeline 400, avoid the case that radioactive medium splashes or flows out in instrument pipeline, ensure the safety in use.

[0028] Please refer to Figs. 2-3 In an embodiment, rotation ratchet 101 and reversing mechanism 102 are installed in the pipeline passage of equipment main body 100, and rotation ratchet 101 is adjusted to rotate along clockwise direction or counterclockwise direction by reversing mechanism 102.The inner wall of rotation ratchet 101 is set as screw cap clamping hole shape, and matches with the plug contour of instrument water filling exhaust interface by screw cap clamping hole shape.The inner diameter of lower sealing component 200 is greater than the inner diameter of rotation ratchet 101.

[0029] Specifically, in the embodiment of the utility model, through installing the rotating ratchet wheel 101 and the reversing mechanism 102 in the pipeline channel of the equipment main body 100, the rotating ratchet wheel 101 can be fixed in the pipeline channel of the equipment main body 100 through the snap spring, the outer side wall is set as a gear shape, and the inner side wall is set as a nut clamping hole shape matched with the size of the instrument blowdown plug. The reversing mechanism 102 can be fixed in the pipeline channel of the equipment main body 100 through the screw rod, and the pawl and the gear of the outer side wall of the rotating ratchet wheel 101 are tightly engaged through the installed bidirectional pawl and the internal spring, so that the connection is tight and not easy to fall off, and the reversing adjustment of the rotating ratchet wheel 101 is realized by moving up and down on the left and right sides. The inner diameter of the lower sealing part 200 corresponds to the outer diameter of the instrument water filling and exhaust interface, and the inner diameter of the rotating ratchet wheel 101 corresponds to the outer diameter of the plug on the interface, so that the lower sealing part 200 is connected to the interface through the plug, and the plug is in contact with the rotating ratchet wheel 101 to open.

[0030] That is, through the nut clamping hole shape set in the inner wall of the rotating ratchet wheel 101, the plug profile of the instrument water filling and exhaust interface is matched, that is, after installation, the plug of the instrument water filling and exhaust interface is loosened by rotating the equipment main body 100 to open, release the water and gas medium, so that the water and gas medium is discharged along the lower sealing part 200, the pipeline channel of the equipment main body 100, the upper sealing part 300 and the drainage pipeline 400. After the water and gas medium discharge process is completed, the reversing mechanism 102 of the equipment main body 100 is directly operated, and the rotating ratchet wheel 101 drives the engaged plug to reseal the instrument water filling and exhaust interface.

[0031] In this way, when in use, the rotating ratchet wheel 101 can be rotated counterclockwise by pulling the reversing lever of the reversing mechanism 102, the equipment main body 100 is slowly rotated counterclockwise, at this time, the instrument blowdown plug is rotated counterclockwise with the rotating ratchet wheel 101, the plug is loosened, the internal high-pressure medium is rushed into the drainage pipeline 400, and the medium is collected into the special collection bag, the bubbles in the medium are taken out, the equipment main body 100 is stopped, and the pipeline pressure is used to continuously fill water and exhaust the instrument.

[0032] Please refer to Figs. 1-3 , in an embodiment, the lower sealing part 200 includes a threaded part 201 connected to the pipeline channel of the equipment main body 100 and a sleeve part 202 connected to the instrument water filling and exhaust interface. The threaded part 201 is an external thread structure, and the pipeline channel end of the equipment main body 100 connected to the lower sealing part 200 is provided with an internal thread structure matched with the threaded part 201. A sealing gasket is arranged between the threaded part 201 and the pipeline channel connected to the equipment main body 100, and a sliding sealing ring connected to the instrument water filling and exhaust interface is arranged in the sleeve part 202.

[0033] Specifically, in the embodiment of the utility model, lower sealing part 200 is the key sealing assembly in instrument water filling and exhaust tool, can ensure the sealing of the connection between equipment main body 100 and instrument blowdown, that is, water filling and exhaust interface, effectively prevent radioactive medium from leaking in the water filling and exhaust process, and protect the safety of operators. Lower sealing part 200 can be tightly matched with the internal thread structure of the pipeline channel end of the equipment main body 100 through the external thread structure of the threaded part 201. This threaded connection mode is firm, easy to install and disassemble, and improves the use convenience of the tool.

[0034] More specifically, in order to enhance the sealing effect, a sealing gasket can be arranged between the threaded part 201 and the pipeline channel connected to the equipment main body 100. The sealing gasket is made of radiation-resistant and high-temperature-resistant material, which can maintain good sealing performance in the complex environment of a nuclear power plant and effectively prevent radioactive medium from leaking from the threaded connection, thereby providing protection for the sealing of the entire tool.

[0035] Similarly, the sliding sealing ring is used for sealing in the sleeve part 202, which has elasticity and wear resistance and can tightly fit the inner wall of the instrument water filling and exhaust interface. During the rotation of the equipment main body 100 and the lower sealing part 200 relative to the water filling and exhaust interface, the sliding sealing ring can maintain stable sealing effect, ensuring that the radioactive medium does not splash or flow out from the interface during the water filling and exhaust process, thereby avoiding personnel contamination and improving the safety of operation.

[0036] Please refer to Figs. 1-3 , in an embodiment, the upper sealing part 300 is connected to the equipment main body 100 by welding and connected to the drainage pipeline 400 through a straight-through joint. The drainage pipeline 400 is made of transparent material.

[0037] Specifically, in the embodiment of the utility model, the connection between the upper sealing part 300 and the channel pipeline of the equipment main body 100 adopts a welding method, which can ensure that the two have high-strength connection performance, making the entire tool more stable and reliable during use. Through welding, the upper sealing part 300 and the equipment main body 100 form a whole, enhancing the structural integrity and effectively avoiding potential risks caused by loose connection during the water filling and exhaust operation. In addition, the upper sealing part 300 can also be connected to the drainage pipeline 400 through a straight-through joint, which simplifies the connection structure, making the installation and replacement of the drainage pipeline 400 more convenient and fast, and also ensuring smooth flow of the medium during drainage.

[0038] More specifically, by adopting the transparent material for the drainage pipeline 400, the operator can directly observe the flow of the pipeline medium, especially the presence or absence of bubbles, through the transparent drainage pipeline 400 during the water filling and air exhausting process. This enables the operator to more accurately determine the completion degree of the water filling and air exhausting operation, thereby stopping the operation in time under the condition of ensuring that there is no bubble residue in the instrument, improving the accuracy and safety of the operation. At the same time, the transparent drainage pipeline 400 also facilitates the daily inspection and maintenance of the pipeline interior, timely discovers and handles possible problems, and further guarantees the long-term stable operation of the tool.

[0039] In summary, the utility model provides a kind of anti-staining instrument water filling and air exhausting tool, by adopting the equipment main part of radiation resistant material and its built-in rotating ratchet and instrument blow-off head match, cooperate in the lower part sealing component of equipment main part built-in two sliding sealing rings and instrument blow-off mouth connection, radioactive medium is drained. Simple structure, convenient to use, can effectively prevent radioactive medium splashing under pressure.

[0040] The above embodiments only exemplarily illustrate the principles and effects of the utility model, and are not used to limit the utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A contamination-preventing instrument water-filling and air-venting tool, characterized by, The device comprises a device body (100), a lower sealing part (200), an upper sealing part (300) and a drainage pipeline (400), the device body (100) is provided with a pipeline passage at one end, the lower sealing part (200) and the upper sealing part (300) are connected to the pipeline passage of the device body (100) at two ends respectively, the drainage pipeline (400) is connected to the upper sealing part (300) and communicates with the pipeline passage of the device body (100), and the pipeline passage of the device body (100) is connected to the interface of instrument water filling and exhaust through the lower sealing part (200).

2. The instrument water filling and venting apparatus of claim 1, wherein, The device body (100) is made of a radiation-resistant metal alloy material.

3. The instrument water filling and venting apparatus of claim 1, wherein, The pipeline passage of the device body (100) is provided with a rotating ratchet (101) and a reversing mechanism (102), and the rotating ratchet (101) is adjusted to rotate in the clockwise direction or the counterclockwise direction through the reversing mechanism (102).

4. The instrument water filling and venting apparatus of claim 3, wherein, The inner wall of the rotating ratchet (101) is provided in the shape of a nut clamping hole, and the nut clamping hole is matched with the plug contour of the instrument water filling and exhaust interface.

5. The instrument water filling and venting apparatus of claim 3, wherein, The inner diameter of the lower sealing part (200) is greater than the inner diameter of the rotating ratchet (101).

6. The instrument water filling and venting apparatus of claim 1, wherein, The lower sealing part (200) comprises a threaded part (201) connected to the pipeline passage of the device body (100) and a sleeve part (202) connected to the instrument water filling and exhaust interface.

7. The instrument water filling and venting apparatus of claim 6, wherein, The threaded part (201) is an external thread structure, and the pipeline passage end of the device body (100) connected to the lower sealing part (200) is provided with an internal thread structure matched with the threaded part (201).

8. The instrument water filling and venting apparatus of claim 6, wherein, A sealing gasket is arranged between the threaded part (201) and the pipeline passage connected to the device body (100), and the sleeve part (202) is internally provided with a sliding sealing ring connected to the instrument water filling and exhaust interface.

9. The instrument water filling and venting apparatus of claim 1, wherein, The upper sealing part (300) is connected to the device body (100) in a welding manner and connected to the drainage pipeline (400) through a straight-through joint.

10. The instrument water filling and venting apparatus of claim 1, wherein, The drainage pipeline (400) is made of transparent material.

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