Wire leading-out device

Abstract

The utility model provides a wire leading-out device, and the device comprises a transition cavity which is provided with a transition cavity, a first installation port, and a second installation port. The first wire leading-out part comprises a first conductor and a first insulation sealing piece, the first conductor is installed at the first installation opening through the first insulation sealing piece, and the other end of the first conductor is connected with a wire in the pressure container; the second wire leading-out part comprises a second conductor and a second insulation sealing piece, the second conductor is installed at the second installation opening through the second insulation sealing piece, one end of the second conductor is located in the transition cavity and connected with one end of the first conductor through a wire, and the other end of the second conductor extends out of the transition cavity and is used for being connected with an external wire; and the pressure monitoring component is used for monitoring the pressure in the transition cavity. The sealing structure mode that the two wire leading-out components are connected in series is adopted, the reliability is greatly improved, and even if one of the wire leading-out components goes wrong, accidents cannot be caused.

Description

Technical Field

[0001] The present application belongs to the technical field of electrical equipment, and in particular relates to a wire lead-out device for realizing safe transmission of electric current when the pressure difference between the inside and outside of a pressure vessel is large. Background Art

[0002] Many chemical processes need to be carried out under high temperature and high pressure. Pressure vessels are generally used to obtain high temperature and high pressure environments. It is often necessary to transmit electric current inside and outside the pressure vessels. Since pressure vessels are generally made of metal and can conduct electricity, the insulation problem between the transmission wires and the pressure vessels must be solved for current transmission.

[0003] Electrical penetrations are commonly used in industry to achieve sealing and insulation of signal cables passing through pressure boundaries. Commonly used electrical penetrations include nuclear power plant containment electrical penetrations and pressure vessel electrical penetrations. The media involved in the reaction in the pressure vessel are often flammable and toxic, and leakage can easily cause serious consequences. Therefore, it is particularly important for production safety to provide a wire lead-out device that can be used in high temperature and high pressure environments and can monitor whether there is leakage in real time. Utility Model Content

[0004] In view of the above-mentioned technical problems existing in the prior art, an embodiment of the present application provides a wire lead-out device.

[0005] The technical solution adopted in the embodiment of the present application is: a wire lead-out device, comprising:

[0006] A transition cavity body is installed on the pressure vessel and has a transition cavity and a first installation port and a second installation port communicating with the transition cavity;

[0007] a first wire lead-out component, comprising a first conductor and a first insulating seal, wherein the first conductor is installed at a first installation opening of the transition cavity through the first insulating seal, and one end of the first conductor is located in the transition cavity, and the other end of the first conductor extends out of the transition cavity and is connected to the wire in the pressure vessel;

[0008] A second wire lead-out component, comprising a second conductor and a second insulating seal, wherein the second conductor is installed at a second installation opening of the transition cavity through the second insulating seal, and one end of the second conductor is located in the transition cavity and connected to one end of the first conductor through a wire, and the other end of the second conductor extends out of the transition cavity and is used to be connected to an external wire;

[0009] The pressure monitoring component is arranged on the cavity wall of the transition cavity and is used for monitoring the pressure in the transition cavity.

[0010] In an optional embodiment, a mounting flange is welded to the first mounting opening of the transition cavity, and the transition cavity is fixedly connected to the flange on the pressure vessel through the mounting flange;

[0011] The inner edge of the mounting flange extends into the transition cavity to form a connecting portion, and a first compression nut is threadedly connected to the connecting portion;

[0012] The first insulating seal is disposed between the mounting flange and the first conductor, and is compressed on the mounting flange and the first conductor by the first compression nut to seal between the mounting flange and the first conductor.

[0013] In an optional embodiment, the first conductor includes a first conductor bar and a first sealing portion arranged around the circumference of the first conductor bar, the first sealing portion separates the first conductor bar into a first rod portion and a second rod portion respectively located on opposite sides thereof; the first sealing portion has a first sealing surface and a second sealing surface which are separated from each other, the first sealing surface and the first rod portion are located on the same side of the first sealing portion, and the second sealing surface and the second rod portion are located on the same side of the first sealing portion;

[0014] The inner edge of the mounting flange on one side facing the pressure vessel extends inwardly to form an annular stop, and the surface of the annular stop on one side facing the transition chamber forms a third sealing surface;

[0015] The first insulating seal includes a first inner insulating seal and a first outer insulating seal, the first inner insulating seal is arranged between the first rod portion and the mounting flange, and has a fourth sealing surface for sealingly cooperating with the first sealing surface and a fifth sealing surface for sealingly cooperating with the third sealing surface; the first outer insulating seal is arranged between the second rod portion and the first clamping nut, and has a sixth sealing surface for sealingly cooperating with the second sealing surface and a seventh sealing surface for sealingly cooperating with the inner side surface of the first clamping nut.

[0016] In an optional embodiment, a first annular groove is provided on the outer circumferential surface of the first sealing portion, and a first O-ring is provided in the first annular groove.

[0017] In an optional embodiment, a protective gas distribution chamber connected to the pressure vessel is provided on a side surface of the annular baffle facing the pressure vessel, and the first rod portion extends into the pressure vessel through the protective gas distribution chamber and is connected to a wire in the pressure vessel;

[0018] A shielding gas inlet is provided on the cavity wall of the transition cavity, and shielding gas is fed into the shielding gas distribution cavity through the shielding gas inlet.

[0019] In an optional embodiment, the second wire lead-out component further includes a mounting seat and a second compression nut, one end of the mounting seat is fixed to the second mounting opening of the transition cavity, the other end of the mounting seat is located outside the second mounting opening and is provided with an external thread, and the second compression nut is threadedly connected to the other end of the mounting seat;

[0020] The second conductor is inserted into the mounting seat, and two ends of the second conductor extend from a first end and a second end of the mounting seat respectively;

[0021] The second insulating seal is arranged between the mounting seat and the second conductor, and is compressed on the mounting seat and the second conductor by the second compression nut to seal between the mounting seat and the second conductor.

[0022] In an optional embodiment, the second conductor includes a second conductor bar and a second sealing portion arranged around the circumference of the second conductor bar, the second sealing portion separates the second conductor bar into a third rod portion and a fourth rod portion respectively located on opposite sides thereof; the second sealing portion has an eighth sealing surface and a ninth sealing surface which are opposite to each other, the eighth sealing surface and the third rod portion are located on the same side of the second sealing portion, and the ninth sealing surface and the fourth rod portion are located on the same side of the second sealing portion;

[0023] A step surface is provided on the inner side of one end of the mounting seat;

[0024] The second insulating seal includes a second inner insulating seal and a second outer insulating seal, the second inner insulating seal is arranged between the third rod portion and the mounting seat, and has a tenth sealing surface for sealingly cooperating with the eighth sealing surface and an eleventh sealing surface for sealingly cooperating with the step surface; the second outer insulating seal is arranged between the fourth rod portion and the second clamping nut, and has a twelfth sealing surface for sealingly cooperating with the ninth sealing surface and a thirteenth sealing surface for sealingly cooperating with the inner side surface of the second clamping nut.

[0025] In an optional embodiment, a second annular groove is provided on the outer circumferential surface of the second sealing portion, and a second O-ring is provided in the second annular groove.

[0026] In an optional embodiment, the transition cavity is cylindrical, and both ends of the cylindrical transition cavity in the axial direction are open, wherein the opening at one end forms the first mounting port, and the opening at the other end is provided with a connecting flange, and the connecting flange is connected to a pressure-resistant blind plate by bolts; the second mounting port is opened on the cavity wall of the transition cavity.

[0027] In an optional embodiment, the first conductor and the second conductor are respectively made of copper rods; and the wire connecting one end of the first conductor and one end of the second conductor is a flexible wire.

[0028] Compared with the prior art, the beneficial effects of the embodiments of the present application are:

[0029] 1. The wire lead-out device of the embodiment of the present application adopts a method of connecting two sealing structures (a first wire lead-out component and a second wire lead-out component) in series, which greatly improves the reliability of the wire lead-out device. Even if one of them fails, it will not cause an accident.

[0030] 2. The application embodiment can realize real-time monitoring of the working status of the wire lead-out device, and can detect slight leakage, which is convenient for real-time maintenance and replacement, and essentially ensures safety;

[0031] 3. The wire lead-out device of the application embodiment is provided with a protective gas distribution chamber on the high-pressure and high-temperature working side (the side close to the pressure vessel). Under the action of the protective gas, the weak position is protected, the temperature is reduced, the working environment is improved, and the service life and the ability to cope with fluctuating working conditions are greatly improved.

[0032] It is to be understood that the foregoing general description and detailed description are exemplary and explanatory only and are not restrictive of the present application.

[0033] The overview of various implementations or examples of the technology described in this application is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In the drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar components in different views. The drawings generally illustrate various embodiments by way of example and not limitation, and together with the description and claims, serve to illustrate the disclosed embodiments. When appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

[0035] Figure 1 Schematic diagram of the structure of the wire lead-out device according to an embodiment of the present application.

[0036] Reference numerals:

[0037] 1-transition chamber; 11-transition chamber; 12-pressure measuring port; 13-protective gas inlet;

[0038] 2-first wire lead-out component; 21-first conductor; 211-first sealing portion; 2111-first sealing surface; 2112-second sealing surface; 22-first O-ring; 23-first insulating seal; 231-first inner insulating seal; 232-first outer insulating seal; 24-first compression nut;

[0039] 3-second wire lead-out component; 31-second conductor; 311-second sealing portion; 3111-eighth sealing surface; 3112-ninth sealing surface; 32-second O-ring; 33-second insulating seal; 331-second inner insulating seal; 332-second outer insulating seal; 34-mounting seat; 341-step surface; 35-second clamping nut;

[0040] 4-conducting wire; 5-mounting flange; 51-connecting part; 52-annular baffle; 521-third sealing surface; 6-connecting flange; 7-pressure-resistant blind plate; 8-protective gas distribution chamber. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiment of the present application clearer, the technical solution of the embodiment of the present application will be clearly and completely described in conjunction with the drawings of the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0042] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. "First", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0043] In order to keep the following description of the embodiments of the present application clear and concise, the present application omits detailed descriptions of known functions and known components.

[0044] An embodiment of the present application provides a wire lead-out device for use on a pressure vessel, which realizes a conductive connection between the inside of the pressure vessel and the outside world under a high temperature and high pressure environment or when the pressure difference between the inside and outside of the pressure vessel is large, thereby safely transmitting external current to the pressure vessel and ensuring that the medium in the pressure vessel does not leak out.

[0045] like Figure 1 As shown, the embodiment of the present application provides a wire lead-out device which mainly includes a transition cavity 1, a first wire lead-out component 2, a second wire lead-out component 3 and a pressure monitoring component. The transition cavity 1 is installed on the pressure vessel and has a transition cavity 11 and a first installation port and a second installation port connected to the transition cavity 11 (the two installation ports are not shown because they are blocked by two wire lead-out components respectively).

[0046] Continue to combine Figure 1 The first wire lead-out component 2 includes a first conductor 21 and a first insulating seal 23. The first conductor 21 is installed at the first installation port of the transition cavity 1 through the first insulating seal 23, and one end of the first conductor 21 is located in the transition cavity 11, and the other end of the first conductor 21 extends out of the transition cavity 11 and is connected to the wire in the pressure vessel. The first conductor 21 is used to transmit current between the high-voltage side (inside the pressure vessel) and the transition cavity 11. The second wire lead-out component 3 includes a second conductor 31 and a second insulating seal 33. The second conductor 31 is installed at the second installation port of the transition cavity 1 through the second insulating seal 33, and one end of the second conductor 31 is located in the transition cavity 11 and is connected to one end of the first conductor 21 through the wire 4, and the other end of the second conductor 31 extends out of the transition cavity 11 and is used to connect to an external wire. The second conductor 31 is used to transmit current between the transition cavity 11 and the external environment. The pressure monitoring component is arranged on the wall of the transition chamber 11. Specifically, for example, a pressure measuring port 12 may be arranged on the wall of the transition chamber 11. The pressure monitoring component extends into the transition chamber 11 through the pressure measuring port 12 to monitor the pressure in the transition chamber 11 during operation. Normally, the pressure in the transition chamber 11 is normal pressure. Once the pressure rises, it means that the first wire lead-out component 2 has a leak and needs to be replaced as soon as possible.

[0047] The embodiment of the present application can transmit external current to the pressure vessel through the first wire lead-out component 2 and the second wire lead-out component 3 to meet the power demand inside the pressure vessel, and through the provision of the first insulating seal 23, not only can the leakage of the medium in the pressure vessel be avoided and the insulation problem be solved, but the cooperation of the first insulating seal 23 and the second insulating seal 33 can also make the transition chamber 11 form a sealed chamber, so that when the pressure in the transition chamber 11 is detected by the pressure monitoring component, it can be judged according to the change in pressure whether the first wire lead-out component 2 is leaking, and even a slight leakage can be detected, which is convenient for real-time maintenance and replacement, thereby essentially ensuring safety.

[0048] In some embodiments, Figure 1 As shown, the first mounting opening of the transition chamber 1 is welded with a mounting flange 5, and the transition chamber 1 is fixedly connected to the flange on the pressure vessel through the mounting flange 5. The inner edge of the mounting flange 5 (specifically the periphery of the center hole of the mounting flange 5) extends into the transition chamber 1 to form a connecting portion 51, and the connecting portion 51 is threadedly connected with a first clamping nut 24. The first insulating seal 23 is arranged between the mounting flange 5 and the first conductor 21, and is compressed on the mounting flange 5 and the first conductor 21 through the first clamping nut 24, so that a seal is formed between the mounting flange 5 and the first conductor 21 and between the first clamping nut 24 and the first conductor 21. By matching the mounting flange 5 with the first clamping nut 24, the first insulating seal 23 is compressed and sealed between the mounting flange 5 and the first conductor 21, thereby achieving sealing and insulation between the mounting flange 5 and the first conductor 21, with a reasonable structure and better effect.

[0049] Further, such as Figure 1 As shown, the first conductor 21 includes a first conductor bar and a first sealing portion 211 disposed around the circumference of the first conductor bar. The first sealing portion 211 separates the first conductor bar into a first rod portion and a second rod portion located on opposite sides thereof. The first sealing portion 211 has a first sealing surface 2111 and a second sealing surface 2112 that are separated from each other. The first sealing surface 2111 and the first rod portion are located on the same side of the first sealing portion 211 (i.e., located on the same side of the first sealing portion 211). Figure 1 The second sealing surface 2112 and the second rod portion are located on the same side of the first sealing portion 211 (ie, located on the left side of the first sealing portion 211). Figure 1 The first sealing surface 2111 and the second sealing surface 2112 may be, but are not limited to, planes. The first sealing surface 2111 is an end surface of the first sealing portion 211 connected to and perpendicular to the first rod portion, and the second sealing surface 2112 is an end surface of the first sealing portion 211 connected to and perpendicular to the second rod portion. The first sealing portion 211 may be an annular disc structure, and the two disc surfaces of the disc structure serve as the first sealing surface 2111 and the second sealing surface 2112, respectively.

[0050] The inner edge of the mounting flange 5 on one side facing the pressure vessel extends inward to form an annular baffle 52, that is, the peripheral edge of one end of the center hole of the mounting flange 5 facing the pressure vessel closes toward the center of the center hole to form an annular baffle 52, and the side surface of the annular baffle 52 facing the transition chamber 11 forms a third sealing surface 521.

[0051] The first insulating seal 23 includes a first inner insulating seal 231 and a first outer insulating seal 232. The first inner insulating seal 231 is disposed between the first rod portion and the mounting flange 5, and has a fourth sealing surface for sealing with the first sealing surface 2111 and a fifth sealing surface for sealing with the third sealing surface 521. The first inner insulating seal 231 is used to achieve insulation and sealing between the mounting flange 5 and the first conductor 21. The first outer insulating seal 232 is disposed between the second rod portion and the first compression nut 24, and is fixed in the mounting flange 5 by the first compression nut 24. The first outer insulating seal 232 has a sixth sealing surface for sealing with the second sealing surface 2112 and a seventh sealing surface for sealing with the inner side surface of the first compression nut 24. The first outer insulating seal 232 is used to achieve insulation and sealing between the first compression nut 24 and the first conductor 21.

[0052] In the embodiment of the present application, the first conductor 21 is designed to include a first sealing portion 211 , and an annular stop 52 is designed on the mounting flange 5 , so that a multiple sealing structure can be formed, thereby achieving the insulation and sealing functions of the first wire lead-out component 2 .

[0053] The first insulating seal 23 is designed to be a two-part structure including a first inner insulating seal 231 and a first outer insulating seal 232, and the first inner insulating seal 231 and the first outer insulating seal 232 cooperate to enclose a space adapted to the outer contour of the first conductor 21 to accommodate the first conductor 21, and are tightly wrapped on the first conductor 21, which is not only conducive to forming a multiple sealing structure, but also improves the convenience of assembly. The outer contours of the first inner insulating seal 231 and the first outer insulating seal 232 are tightly fitted with the inner wall of the mounting flange 5.

[0054] In some embodiments, Figure 1 As shown, a first annular groove is provided on the outer circumferential surface of the first sealing portion 211, and a first O-type sealing ring 22 is provided in the first annular groove. The first O-type sealing ring 22 forms a circumferential seal between the first sealing portion 211 and the first insulating seal 23, which plays a sealing role again and improves the sealing effect.

[0055] In some embodiments, the combination Figure 1A protective gas distribution chamber 8 connected to the pressure vessel is provided on the side surface of the annular baffle 52 facing the pressure vessel. The first rod portion extends into the pressure vessel through the protective gas distribution chamber 8 and is connected to the wire in the pressure vessel. A protective gas inlet 13 is provided on the cavity wall of the transition cavity 11, and protective gas is fed into the protective gas distribution chamber 8 through the protective gas inlet 13. The protective gas can be an inert gas or a room temperature gas with the same composition as the gas in the pressure vessel. By feeding protective gas into the protective gas distribution chamber 8, it can be ensured that even in the high temperature environment in the pressure vessel, the first inner insulating seal 231 is at a relatively low temperature. Under the action of the protective gas, the weak position is protected, the working environment is improved, and the service life and the ability to cope with fluctuating working conditions are greatly improved.

[0056] In some embodiments, Figure 1 As shown, the second wire lead-out component 3 also includes a mounting seat 34 and a second compression nut 35. One end of the mounting seat 34 is fixed to the second mounting opening of the transition cavity 1, the other end of the mounting seat 34 is located outside the second mounting opening and is provided with an external thread, and the second compression nut 35 is threadedly connected to the other end of the mounting seat 34.

[0057] The second conductor 31 passes through the mounting seat 34 , and two ends of the second conductor 31 extend from a first end and a second end of the mounting seat 34 respectively.

[0058] The second insulating seal 33 is disposed between the mounting seat 34 and the second conductor 31 , and is compressed onto the mounting seat 34 and the second conductor 31 by the second compression nut 35 , so as to form a seal between the mounting seat 34 and the second conductor 31 and between the second conductor 31 and the second compression nut 35 .

[0059] The second insulating seal 33 is compressed and sealed between the mounting seat 34 and the second conductor 31 by the cooperation between the mounting seat 34 and the second compression nut 35, so as to achieve sealing and insulation between the mounting seat 34 and the second conductor 31, with reasonable structure and better effect.

[0060] Further, such as Figure 1 As shown, the second conductor 31 includes a second conductor bar and a second sealing portion 311 arranged around the circumference of the second conductor bar. The second sealing portion 311 separates the second conductor bar into a third rod portion and a fourth rod portion located on opposite sides thereof. The second sealing portion 311 has an eighth sealing surface 3111 and a ninth sealing surface 3112 which are separated from each other. The eighth sealing surface 3111 and the third rod portion are located on the same side of the second sealing portion 311 (i.e., located on the same side of the second sealing portion 311). Figure 1 The ninth sealing surface 3112 and the fourth rod portion are located on the same side of the second sealing portion 311 (ie, located at the lower side of the second sealing portion 311). Figure 1The eighth sealing surface 3111 and the ninth sealing surface 3112 may be, but are not limited to, planes. The eighth sealing surface 3111 is an end surface of the second sealing portion 311 that is connected to and perpendicular to the third rod portion, and the ninth sealing surface 3112 is an end surface of the second sealing portion 311 that is connected to and perpendicular to the fourth rod portion. The second sealing portion 311 may be an annular disc structure, and the two disc surfaces of the disc structure serve as the eighth sealing surface 3111 and the ninth sealing surface 3112, respectively.

[0061] A step surface 341 is formed on the inner side of one end of the mounting seat 34 .

[0062] The second insulating seal 33 includes a second inner insulating seal 331 and a second outer insulating seal 332. The second inner insulating seal 331 is disposed between the third rod portion and the mounting seat 34, and has a tenth sealing surface for sealingly cooperating with the eighth sealing surface 3111 and an eleventh sealing surface for sealingly cooperating with the step surface 341 of the mounting seat 34. The second inner insulating seal 331 is used to achieve insulation and sealing between the mounting seat 34 and the second conductor 31. The second outer insulating seal 332 is disposed between the fourth rod portion and the second compression nut 35, and is fixed in the mounting seat 34 by the second compression nut 35. The second outer insulating seal 332 has a twelfth sealing surface for sealingly cooperating with the ninth sealing surface 3112 and a thirteenth sealing surface for sealingly cooperating with the inner side surface of the second compression nut 35. The second outer insulating seal 332 is used to achieve insulation and sealing between the second compression nut 35 and the second conductor 31.

[0063] The embodiment of the present application forms a multiple sealing structure by designing the second conductor 31 to include a second sealing portion 311 and designing a step surface 341 on the mounting seat 34, thereby realizing the insulation and sealing functions of the second insulating seal 33 of the second wire lead-out component 3.

[0064] In some embodiments, Figure 1 As shown, a second annular groove is provided on the outer circumferential surface of the second sealing portion 311, and a second O-type sealing ring 32 is arranged in the second annular groove. The second O-type sealing ring 32 plays a sealing role again, thereby improving the sealing effect.

[0065] The specific structural form of the transition cavity 1 is not limited and can be selected and determined according to specific needs. Figure 1 As shown, the transition cavity 1 is cylindrical, and both ends of the cylindrical transition cavity 1 in the axial direction are open, wherein the opening at the first end forms a first installation opening, and the opening at the second end is provided with a connecting flange 6, and the connecting flange 6 is bolted with a pressure-resistant blind plate 7, and the opening at the second end is sealed by the pressure-resistant blind plate 7, so that the transition cavity 11 forms a sealed cavity. The second installation opening is opened on the lateral cavity wall of the transition cavity 1. The structure is reasonable and easy to manufacture.

[0066] The first conductor rod and the second conductor rod of the embodiment of the present application are preferably made of copper rods. The material of the first O-ring 22 and the second O-ring 32 is a non-metallic material, preferably a rubber material. The first insulating seal 23 and the second insulating seal 33 are both non-metallic materials, preferably polytetrafluoroethylene materials. The connecting wire 4 at one end of the first conductor 21 and one end of the second conductor 31 is a flexible wire, and the flexible wire is preferably a cable with an insulating sheath. The pressure detection component can be a pressure sensor. The pressure sensor can detect the pressure in the transition chamber 11 in real time, and provide the detected pressure information to the user through, for example, a display, a buzzer or an indicator light, so that the user can intuitively understand the pressure state in the transition chamber 11.

[0067] The method of using the wire lead-out device of the embodiment of the present application is as follows:

[0068] Connect the first conductor 21 to the wire in the pressure vessel, and fix the mounting flange 5 at the first mounting port to the flange of the pressure vessel; connect the second conductor 31 to the external wire, and introduce inert gas or normal temperature gas with the same gas composition as that in the pressure vessel into the position of the first insulating seal 23 close to the pressure vessel (protective gas distribution chamber 8) to cool the first insulating seal 23, so that the side of the first insulating seal 23 close to the pressure vessel is at a relatively low temperature even in the high temperature environment of the pressure vessel. Use the pressure monitoring component to continuously detect the pressure in the transition chamber 11, wherein during normal operation, the pressure detected by the pressure monitoring component is normal pressure. When the detected pressure rises, it is determined that the first wire lead-out component 2 has a leak, and the second wire lead-out component 3 can continue to work to ensure that the medium in the pressure vessel will not leak, and the first wire lead-out component 2 can be replaced at an appropriate time.

[0069] The method of use of the embodiment of the present application is simple, and the working status of the wire lead-out device can be monitored in real time. When there is a slight leakage, it can be discovered, which is convenient for real-time maintenance and replacement, and safety is essentially guaranteed.

[0070] The above description is intended to be illustrative rather than restrictive, and those skilled in the art may make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure. Moreover, the above examples (or one or more of them) may be used in combination with each other, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations.

Claims

1. A wire lead-out device, characterized in that: include: A transition cavity body is installed on the pressure vessel and has a transition cavity and a first installation port and a second installation port communicating with the transition cavity; a first wire lead-out component, comprising a first conductor and a first insulating seal, wherein the first conductor is installed at a first installation opening of the transition cavity through the first insulating seal, and one end of the first conductor is located in the transition cavity, and the other end of the first conductor extends out of the transition cavity and is connected to the wire in the pressure vessel; A second wire lead-out component, comprising a second conductor and a second insulating seal, wherein the second conductor is installed at a second installation opening of the transition cavity through the second insulating seal, and one end of the second conductor is located in the transition cavity and connected to one end of the first conductor through a wire, and the other end of the second conductor extends out of the transition cavity and is used to be connected to an external wire; The pressure monitoring component is arranged on the cavity wall of the transition cavity and is used for monitoring the pressure in the transition cavity.

2. The wire lead-out device according to claim 1, characterized in that: A mounting flange is welded to the first mounting opening of the transition cavity, and the transition cavity is fixedly connected to the flange on the pressure vessel through the mounting flange; The inner edge of the mounting flange extends into the transition cavity to form a connecting portion, and a first compression nut is threadedly connected to the connecting portion; The first insulating seal is disposed between the mounting flange and the first conductor, and is compressed on the mounting flange and the first conductor by the first compression nut to seal between the mounting flange and the first conductor.

3. The wire lead-out device according to claim 2, characterized in that: The first conductor comprises a first conductor bar and a first sealing portion arranged around the circumference of the first conductor bar, wherein the first sealing portion separates the first conductor bar into a first rod portion and a second rod portion located at opposite sides thereof; the first sealing portion comprises a first sealing surface and a second sealing surface which are separated from each other, wherein the first sealing surface and the first rod portion are located at the same side of the first sealing portion, and the second sealing surface and the second rod portion are located at the same side of the first sealing portion; The inner edge of the mounting flange on one side facing the pressure vessel extends inwardly to form an annular stop, and the surface of the annular stop on one side facing the transition chamber forms a third sealing surface; The first insulating seal includes a first inner insulating seal and a first outer insulating seal, the first inner insulating seal is arranged between the first rod portion and the mounting flange, and has a fourth sealing surface for sealingly cooperating with the first sealing surface and a fifth sealing surface for sealingly cooperating with the third sealing surface; the first outer insulating seal is arranged between the second rod portion and the first clamping nut, and has a sixth sealing surface for sealingly cooperating with the second sealing surface and a seventh sealing surface for sealingly cooperating with the inner side surface of the first clamping nut.

4. The wire lead-out device according to claim 3, characterized in that: A first annular groove is disposed on the outer peripheral surface of the first sealing portion, and a first O-type sealing ring is disposed in the first annular groove.

5. The wire lead-out device according to claim 3, characterized in that: A protective gas distribution cavity communicated with the pressure vessel is provided on a side surface of the annular baffle facing the pressure vessel, and the first rod portion extends into the pressure vessel through the protective gas distribution cavity and is connected to a wire in the pressure vessel; A shielding gas inlet is provided on the cavity wall of the transition cavity, and shielding gas is fed into the shielding gas distribution cavity through the shielding gas inlet.

6. The wire lead-out device according to claim 1, characterized in that: The second wire lead-out component further includes a mounting seat and a second compression nut, one end of the mounting seat is fixed to the second mounting opening of the transition cavity, the other end of the mounting seat is located outside the second mounting opening and is provided with an external thread, and the second compression nut is threadedly connected to the other end of the mounting seat; The second conductor is inserted into the mounting seat, and two ends of the second conductor extend from a first end and a second end of the mounting seat respectively; The second insulating seal is arranged between the mounting seat and the second conductor, and is compressed on the mounting seat and the second conductor by the second compression nut to seal between the mounting seat and the second conductor.

7. The wire lead-out device according to claim 6, characterized in that: The second conductor comprises a second conductor bar and a second sealing portion arranged around the circumference of the second conductor bar, the second sealing portion divides the second conductor bar into a third rod portion and a fourth rod portion respectively located on two opposite sides thereof; the second sealing portion has an eighth sealing surface and a ninth sealing surface which are separated from each other, the eighth sealing surface and the third rod portion are located on the same side of the second sealing portion, and the ninth sealing surface and the fourth rod portion are located on the same side of the second sealing portion; A step surface is provided on the inner side of one end of the mounting seat; The second insulating seal includes a second inner insulating seal and a second outer insulating seal, the second inner insulating seal is arranged between the third rod portion and the mounting seat, and has a tenth sealing surface for sealingly cooperating with the eighth sealing surface and an eleventh sealing surface for sealingly cooperating with the step surface; the second outer insulating seal is arranged between the fourth rod portion and the second clamping nut, and has a twelfth sealing surface for sealingly cooperating with the ninth sealing surface and a thirteenth sealing surface for sealingly cooperating with the inner side surface of the second clamping nut.

8. The wire lead-out device according to claim 7, characterized in that: A second annular groove is disposed on the outer circumferential surface of the second sealing portion, and a second O-ring is disposed in the second annular groove.

9. The wire lead-out device according to claim 1, characterized in that: The transition cavity is cylindrical, and both ends of the cylindrical transition cavity in the axial direction are open, wherein the opening at one end forms the first mounting port, and the opening at the other end is provided with a connecting flange, and the connecting flange is connected to a pressure-resistant blind plate by bolts; the second mounting port is opened on the cavity wall of the transition cavity.

10. The wire lead-out device according to claim 1, characterized in that: The first conductor and the second conductor are copper rods respectively; the wire connecting one end of the first conductor and one end of the second conductor is a flexible wire.

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