Long cable connecting device for irradiation-resistant camera

Abstract

The utility model discloses a long cable connecting device for an irradiation-resistant camera, and belongs to the technical field of nuclear waste treatment. The long cable connecting device comprises a connecting assembly, a long cable and a metal hose, the connecting assembly is used for being connected with an irradiation-resistant camera, and the connecting assembly is made of an acid-resistant material; one end of the long cable penetrates into the connecting assembly and is electrically connected with a cable of the radiation-resistant camera, and the other end of the long cable penetrates out of the connecting assembly and is connected with hoisting equipment; and the metal hose is made of an acid-resistant material, is connected to the top end of the connecting assembly, and is used for coating the part, penetrating out of the connecting assembly, of the long cable. According to the utility model, the long cable is separated from the acid mist environment through the metal hose, so that the problems of aging and cracking of the long cable in the acid mist corrosion environment for a long time can be solved, and the stability and reliability of remote monitoring of the irradiation-resistant camera are ensured; and the tension effect at the joint of the long cable and the irradiation-resistant camera can be eliminated, and the long-term sealing effect of the long cable connecting device is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to nuclear waste treatment technical field especially for long cable connecting device for radiation resistant camera. BACKGROUND

[0002] In the process of treating nuclear waste, part of the treatment process needs to hoist the radiation resistant camera in the acid mist environment containing corrosion through long cable, so as to be able to monitor the treatment process of nuclear waste through the radiation resistant camera.

[0003] However, since the outermost organic macromolecular protective layer of the current long cable is exposed, the long cable will accelerate aging and cracking in the long-term acid mist corrosion environment, resulting in the decline or failure of the use performance of the long cable, which cannot guarantee the stability and reliability of the long-distance monitoring of the radiation resistant camera.

[0004] In view of the above problems, a long cable connecting device for radiation resistant camera is needed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model discloses a long cable connecting device for radiation resistant camera can isolate long cable from corrosive acid mist environment, guarantee the use performance of long cable in acid mist environment, to guarantee the stability and reliability of the long-distance monitoring of the radiation resistant camera.

[0006] To achieve this purpose, the utility model adopts the following technical scheme:

[0007] The long cable connecting device for radiation resistant camera is used for hoisting the radiation resistant camera in the acid mist environment, comprising:

[0008] The connecting assembly is used for connecting with the radiation resistant camera, and the material of the connecting assembly is acid-resistant material.

[0009] The long cable is arranged in the connecting assembly and connected with the cable of the radiation resistant camera at one end, and the other end is arranged outside the connecting assembly and connected with the hoisting equipment.

[0010] The metal hose is made of acid-resistant material, and the metal hose is connected to the top end of the connecting assembly.

[0011] As an optional solution, the gap between the outer circumferential surface of the long cable and the inner wall surface of the metal hose is 0.1mm-0.2mm.

[0012] As an optional solution, the connection position between the long cable and the cable has a buffer margin.

[0013] As an option, the connecting assembly comprises:

[0014] a first flange connected with the radiation-tolerant camera, and a first nipple at least partially connected in the first flange, through which the cable passes;

[0015] a clamping cylinder connected at a bottom end to a top end of the first flange, and in which the first nipple is located;

[0016] a second flange connected at a top end to the clamping cylinder, and a second nipple at least partially connected in the second flange, through which the long cable passes in sequence downward to electrically connect with the cable, and a metal hose connected at a top end to the second nipple.

[0017] As an option, at least two first sealing members are arranged between the first flange and the radiation-tolerant camera, and / or at least two second sealing members are arranged between the first flange and the bottom end of the clamping cylinder.

[0018] As an option, an outer peripheral surface of the first nipple is provided with at least two first sealing pipe threads, and an inner wall surface of the first flange is provided with at least two second sealing pipe threads, which are threadedly engaged to form a first sealing pipe thread pair.

[0019] As an option, a first gap is formed between the first flange, the first nipple and the cable, which is filled with a first radiation-tolerant sealant.

[0020] As an option, at least two third sealing members are arranged between the second flange and the top end of the clamping cylinder.

[0021] As an option, an outer peripheral surface of the second nipple is provided with at least two third sealing pipe threads, and an inner wall surface of the second flange is provided with at least two fourth sealing pipe threads, which are threadedly engaged to form a second sealing pipe thread pair.

[0022] As an option, a second gap is formed between the second flange, the second nipple, the clamping cylinder and the long cable, which is filled with a second radiation-tolerant sealant.

[0023] The utility model discloses the beneficial effects are:

[0024] By connecting the connecting assembly with the radiation-resistant camera, and making one end of the long cable pass through the connecting assembly and electrically connected with the cable of the radiation-resistant camera, and making the other end of the long cable pass out of the connecting assembly and connected with the hoisting device, the radiation-resistant camera can be hoisted and arranged in the acid mist environment through the hoisting action of the hoisting device, so that the process of the nuclear waste is remotely monitored through the radiation-resistant camera; meanwhile, the metal hose covers the part of the long cable passing out of the connecting assembly, so that the long cable is isolated from the acid mist environment through the metal hose, so as to protect the outermost organic high polymer protective layer of the long cable, slow down the aging and cracking of the long cable in the long-term acid mist corrosion environment, so as to ensure the service performance of the long cable, and further ensure the stability and reliability of the remote monitoring of the radiation-resistant camera; and the materials of the connecting assembly and the metal hose are acid-resistant materials, so as to ensure the service reliability of the connecting assembly and the metal hose in the long-term acid mist corrosion environment, so as to better ensure the stability and reliability of the remote monitoring of the radiation-resistant camera.

[0025] By setting the connecting assembly, the long cable can be sleeved in the metal hose, the second screw sleeve and the clamping cylinder, and there is no direct connection relationship between the long cable and the second flange, so that the combination of the long cable and the second flange can be avoided. The tension is borne by the second screw sleeve and the metal hose, and the long cable does not bear the tension, so that the problem of poor sealing of the connecting assembly due to loosening can be avoided, so that the acid mist can be prevented from penetrating into the radiation-resistant camera, and the service performance of the radiation-resistant camera can be ensured, and the expensive radiation-resistant camera can be better protected, so that the service life of the radiation-resistant camera in the acid mist environment can be prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structure schematic view of the long cable connecting device (connecting with the radiation-resistant camera) provided in the utility model;

[0027] Figure 2 It is a sectional view of the long cable connecting device (part of the radiation-resistant camera is removed) provided in the utility model;

[0028] Figure 3 It is a sectional view of the assembly structure between the first flange, the first screw sleeve and part of the clamping cylinder body provided in the utility model;

[0029] Figure 4 It is a structure schematic view of the first flange provided in the utility model;

[0030] Figure 5 It is a structure schematic view of the clamping cylinder body provided in the utility model;

[0031] Figure 6 is a sectional view of the first screw sleeve and the cable provided in the utility model;

[0032] Figure 7 is a sectional view of the first flange provided in the utility model;

[0033] Figure 8 is a schematic view of the first sealing pipe thread pair and the second sealing pipe thread pair formed in the utility model;

[0034] Figure 9 is a sectional enlarged schematic view of the assembly structure between the second flange, the second screw sleeve and part of the clamping cylinder provided in the utility model;

[0035] Figure 10 is a structural schematic view of the second flange provided in the utility model;

[0036] Figure 11 is a sectional view of the second screw sleeve and the long cable provided in the utility model;

[0037] Figure 12 is a sectional view of the second flange provided in the utility model.

[0038] Explanation of reference signs:

[0039] 10-irradiation-resistant camera; 101-cable;

[0040] 1-connection assembly; 11-first flange; 111-first sealing member; 112-first sealing ring groove; 113-second sealing pipe thread; 114-first screw; 12-first screw sleeve; 121-first sealing pipe thread; 13-clamping cylinder; 131-second sealing member; 132-second sealing ring groove; 14-second flange; 141-third sealing member; 142-third sealing ring groove; 143-fourth sealing pipe thread; 144-second screw; 15-second screw sleeve; 151-third sealing pipe thread; 16-first gap; 17-second gap; 18-first sealing pipe thread pair; 19-second sealing pipe thread pair;

[0041] 2-long cable; 3-metal flexible pipe. DETAILED DESCRIPTION

[0042] All features disclosed in this specification, or all steps of any methods or processes disclosed in this specification, can be combined in any combination, except combinations where at least some of such features and / or steps are mutually exclusive.

[0043] Any feature in the foregoing description, and / or shown in the accompanying drawings, is presented by way of example only and is not limiting as to the subject matter of the application. That is, the subject matter of the application should not be construed as being limited to only those features that are explicitly described or shown in the foregoing description or shown in the accompanying drawings. Rather, the subject matter of the application should be construed to include any and all features that are within the scope of the present application, as well as any and all equivalents thereof.

[0044] In order to make the technical problems solved by the utility model, the technical scheme adopted and the technical effects reached more clear, the technical scheme of the utility model is further illustrated below by combining with the drawings and through specific implementation manners.

[0045] The long cable connecting device for the radiation-resistant camera is used for hoisting the radiation-resistant camera in an acid mist environment, so that the treatment process of the nuclear waste in the acid mist environment can be remotely monitored by the radiation-resistant camera, so that the treatment situation of the nuclear waste can be understood in real time, and the reliability and safety in the treatment process of the nuclear waste are ensured. In addition, the long cable connecting device for the radiation-resistant camera can ensure the stable hoisting of the radiation-resistant camera, so that the stability and reliability of the remote monitoring of the radiation-resistant camera are ensured, and the tension effect between the long cable and the radiation-resistant camera can be eliminated, and the long-term sealing effect of the long cable connecting device for the radiation-resistant camera is ensured.

[0046] It is worth noting that the main improvement point in the embodiment is the specific structural improvement of the long cable connecting device for the radiation-resistant camera. For the treatment process of the nuclear waste in the acid mist environment and the remote monitoring process of the radiation-resistant camera, the existing nuclear waste treatment process and the remote monitoring process of the radiation-resistant camera can be referred to, and detailed description is not made here.

[0047] Specifically, as shown in Figure 1 and Figure 2 The long cable connecting device for the radiation-resistant camera comprises a connecting assembly 1, the long cable 2 and the metal hose 3. The connecting assembly 1 is used for being connected with the radiation-resistant camera 10, and the material of the connecting assembly 1 is acid-resistant material. One end of the long cable 2 is arranged in the connecting assembly 1 and is electrically connected with the cable 101 of the radiation-resistant camera 10, and the other end of the long cable 2 is arranged outside the connecting assembly 1 and is connected with the hoisting equipment. The material of the metal hose 3 is acid-resistant material, the metal hose 3 is connected to the top end of the connecting assembly 1, and the metal hose 3 is used for covering the part of the long cable 2 arranged outside the connecting assembly 1, so that the isolation between the long cable 2 and the acid mist environment can be realized through the metal hose 3. The hoisting equipment can adopt the common hoisting structure in the prior art, and specific limitation is not made here, as long as the hoisting of the long cable 2 can be realized through the hoisting equipment.

[0048] By connecting the connecting assembly 1 with the radiation-resistant camera 10, and connecting one end of the long cable 2 in the connecting assembly 1 and electrically connecting the cable 101 of the radiation-resistant camera 10, the other end of the long cable 2 is connected with the hoisting equipment, so that the radiation-resistant camera 10 can be hoisted and arranged in the acid mist environment through the hoisting action of the hoisting equipment, thereby facilitating the remote monitoring of the treatment process of the nuclear waste by the radiation-resistant camera 10.

[0049] The long cable connecting device for the radiation-resistant camera in the embodiment adds a metal hose 3 for covering the long cable 2 relative to the prior art. That is, by covering the part of the long cable 2 that passes out of the connecting assembly 1 with the metal hose 3, the long cable 2 can be isolated from the acid mist environment by the metal hose 3, thereby protecting the outermost organic high polymer protective layer of the long cable 2, slowing down the aging and cracking of the long cable 2 in the long-term acid mist corrosion environment, and ensuring the use performance of the long cable 2, that is, the stable hoisting of the radiation-resistant camera 10 by the long cable 2, thereby ensuring the stability and reliability of the remote monitoring of the radiation-resistant camera 10. Moreover, the materials of the connecting assembly 1 and the metal hose 3 are acid-resistant materials, which can ensure the use reliability of the connecting assembly 1 and the metal hose 3 in the long-term acid mist corrosion environment, and better ensure the stability and reliability of the remote monitoring of the radiation-resistant camera 10.

[0050] It is worth noting that, since the long cable 2 needs to be bent at a certain angle during work, the metal hose 3 with a certain bending deformation function is adopted, which can make the metal hose 3 bend and deform, so that the metal hose 3 is more suitable for the long cable 2, thereby making the metal hose 3 more closely cover the long cable 2, and better ensuring the covering effect of the long cable 2.

[0051] It is worth noting that, in actual work, the metal hose 3 completely covers the part of the long cable 2 that passes out of the connecting assembly 1, to ensure the covering and isolating effect of the metal hose 3 on the long cable 2. Figure 1 and Figure 2 The top end of the long cable 2 is placed outside the metal hose 3, which is only for the purpose of distinguishing the structure of the long cable 2 and the metal hose 3.

[0052] Specifically, the materials of the connecting assembly 1 and the metal hose 3 are 316L stainless steel materials that are resistant to acid corrosion, which can ensure that the connecting assembly 1 and the metal hose 3 have good acid corrosion resistance, structural strength, and durability.

[0053] Furthermore, the gap between the outer circumferential surface of the long cable 2 and the inner wall surface of the metal hose 3 is 0.1mm-0.2mm, so that the gap between the long cable 2 and the metal hose 3 is small enough that when the metal hose 3 is bent and deformed due to accidental stress, the long cable 2 can provide stable support for the metal hose 3, thereby improving the deformation resistance of the metal hose 3.

[0054] Specifically, the connection between the long cable 2 and the cable 101 has a buffer margin. That is, the cable 101 and / or the long cable 2 need to have a certain margin in length to ensure that the long cable 2 and the cable 101 will not be in a tight state after connection, which will facilitate the connection and installation between the subsequent connection component 1 and the radiation-resistant camera 10.

[0055] Currently, due to the tensile force between the long cable and the connecting flange used to connect the radiation-resistant camera, the joint between the long cable and the connecting flange may loosen after repeated use, resulting in poor sealing. This allows acid mist to seep into the radiation-resistant camera through the loose joint, leading to a decrease in the performance or failure of the radiation-resistant camera and damaging the expensive radiation-resistant camera.

[0056] To solve the above problems, such as Figures 1 to 9 As shown, the connection component 1 in this embodiment includes a first flange 11, a first threaded sleeve 12, a clamping sleeve 13, a second flange 14, and a second threaded sleeve 15. The first flange 11 is connected to the radiation-resistant camera 10. At least a portion of the first threaded sleeve 12 is connected inside the first flange 11. The cable 101 passes through the first threaded sleeve 12 and is located inside the clamping sleeve 13. The bottom end of the clamping sleeve 13 is connected to the top end of the first flange 11, and the first threaded sleeve 12 is located inside the clamping sleeve 13. The second flange 14 is connected to the top end of the clamping sleeve 13. At least a portion of the second threaded sleeve 15 is connected inside the second flange 14. The long cable 2 passes downward through the second threaded sleeve 15 and the clamping sleeve 13 in sequence to be electrically connected to the cable 101. The metal flexible tube 3 is connected to the top end of the second threaded sleeve 15.

[0057] By setting the connection component 1 of the above structure, such as Figure 9As shown, the long cable 2 can be sleeved in the metal hose 3, the second screw sleeve 15 and the clamping cylinder 13 without being directly connected with the second flange 14, so that the tension between the long cable 2 and the second flange 14 can be avoided, that is, the tension is borne by the second screw sleeve 15 and the metal hose 3 during the whole working process, and the long cable 2 does not bear the tension, so that the problem of poor sealing of the connecting assembly 1 due to loosening can be avoided, the acid mist can be prevented from penetrating into the radiation-resistant camera 10, the use performance of the radiation-resistant camera 10 can be ensured, the expensive radiation-resistant camera 10 can be better protected, and the service life of the radiation-resistant camera 10 in the acid mist environment can be prolonged.

[0058] It should be noted that the connecting assembly 1 is made of 316L stainless steel material resistant to acid corrosion, specifically, the materials of the first flange 11, the first screw sleeve 12, the clamping cylinder 13, the second flange 14 and the second screw sleeve 15 are all 316L stainless steel materials resistant to acid corrosion.

[0059] Specifically, as shown in the figures, Figures 1 to 3 the bottom end of the first flange 11 is screwed into the radiation-resistant camera 10, the bottom end of the clamping cylinder 13 is connected with the first flange 11 through the first screw 114, the top end of the clamping cylinder 13 is connected with the second flange 14 through the second screw 144, and the bottom end of the metal hose 3 is fixedly connected with the top end of the second screw sleeve 15.

[0060] Further, as shown in the figures, Figure 2 and Figure 3 at least two first sealing members 111 are arranged between the first flange 11 and the radiation-resistant camera 10, and / or at least two second sealing members 131 are arranged between the first flange 11 and the bottom end of the clamping cylinder 13, so that the sealing effect between the whole connecting assembly 1 and the radiation-resistant camera 10 can be ensured by the first sealing members 111 and / or the second sealing members 131. In the embodiment, at least two first sealing members 111 are arranged between the first flange 11 and the radiation-resistant camera 10, and at least two second sealing members 131 are arranged between the first flange 11 and the bottom end of the clamping cylinder 13.

[0061] In the embodiment, as shown in the figures, Figures 2 to 4 two first sealing members 111 are arranged between the first flange 11 and the radiation-resistant camera 10, that is, two first sealing ring grooves 112 are arranged at intervals on the outer circumferential surface of the first flange 11, and two first sealing members 111 are respectively arranged in the two first sealing ring grooves 112, so that the sealing effect between the first flange 11 and the radiation-resistant camera 10 can be ensured by the two first sealing members 111. The first sealing member 111 can be a concentric double-layer O-shaped sealing ring.

[0062] In the embodiment, as shown in Figure 2 , Figure 3 and Figure 5 , two second sealing members 131 are arranged between the first flange 11 and the bottom end of the clamping cylinder 13, that is, two second sealing ring grooves 132 are arranged at the bottom end of the clamping cylinder 13, and two second sealing members 131 are respectively arranged in the two second sealing ring grooves 132, so as to ensure the sealing effect between the first flange 11 and the clamping cylinder 13 through the two second sealing members 131. The second sealing member 131 can be a concentric double-layer O-shaped sealing ring.

[0063] Further, as shown in Figures 6 to 8 , the outer circumferential surface of the first screw sleeve 12 is provided with at least two first sealing pipe threads 121, and the inner wall surface of the first flange 11 is provided with at least two second sealing pipe threads 113. The first sealing pipe threads 121 and the second sealing pipe threads 113 are screwed to form a first sealing pipe thread pair 18, so as to ensure the sealing effect between the first screw sleeve 12 and the first flange 11. The size of each first sealing pipe thread 121 and each second sealing pipe thread 113 can be the same or different, which is not limited here.

[0064] In the embodiment, as shown in Figures 6 to 8 , the outer circumferential surface of the first screw sleeve 12 is provided with two first sealing pipe threads 121, and the inner wall surface of the first flange 11 is provided with two second sealing pipe threads 113. At least one of the two first sealing pipe threads 121 and the two second sealing pipe threads 113 is a conical thread, so as to better ensure the sealing effect between the first screw sleeve 12 and the first flange 11.

[0065] The two first sealing pipe threads 121 and the two second sealing pipe threads 113 are screwed to form two first sealing pipe thread pairs 18. On the one hand, the sealing effect between the first screw sleeve 12 and the first flange 11 can be better ensured. On the other hand, the tightness between the first flange 11 and the first screw sleeve 12 can be better ensured, so as to avoid loosening of the first flange 11 and the first screw sleeve 12 under accidental vibration, thereby better ensuring the rotation stability and reliability between the first flange 11 and the first screw sleeve 12.

[0066] Specifically, as shown in Figure 3 , a first gap 16 is formed between the first flange 11, the first screw sleeve 12 and the cable 101, and the first gap 16 is filled with a first radiation-resistant sealing glue, that is, the first radiation-resistant sealing glue is filled on the outer circumferential surface of the cable 101, so as to ensure the sealing effect between the cable 101 and the connecting assembly 1. In the embodiment, the first radiation-resistant sealing glue is a radiation-resistant epoxy resin glue.

[0067] Specifically, as shown inFigure 2 and Figure 9 As shown in

[0068] Specifically, as shown in Figure 9 and Figure 10 two third sealing ring grooves 142 are arranged at the bottom end of the second flange 14, and two third sealing members 141 are respectively arranged in the two third sealing ring grooves 142, so as to ensure the sealing effect between the second flange 14 and the clamping cylinder 13 through the two third sealing members 141. The third sealing member 141 can be a concentric double-layer O-shaped sealing ring.

[0069] Further, as shown in Figure 8 , Figure 11 and Figure 12 The outer circumferential surface of the second screw sleeve 15 is provided with at least two third sealing pipe threads 151, and the inner wall surface of the second flange 14 is provided with at least two fourth sealing pipe threads 143. The third sealing pipe threads 151 and the fourth sealing pipe threads 143 are screwed to form a second sealing pipe thread pair 19, so as to ensure the sealing effect between the second screw sleeve 15 and the second flange 14. The size of each third sealing pipe thread 151 and each fourth sealing pipe thread 143 can be the same or different, which is not limited here.

[0070] In this embodiment, as shown in Figure 8 , Figure 11 and Figure 12 The outer circumferential surface of the second screw sleeve 15 is provided with two third sealing pipe threads 151, and the inner wall surface of the second flange 14 is provided with two fourth sealing pipe threads 143. At least one of the two third sealing pipe threads 151 and the two fourth sealing pipe threads 143 is a conical thread, so as to better ensure the sealing effect between the second screw sleeve 15 and the second flange 14.

[0071] By screwing the two third sealing pipe threads 151 and the two fourth sealing pipe threads 143, two second sealing pipe thread pairs 19 are formed. On the one hand, it can ensure that the sealing effect between the second screw sleeve 15 and the second flange 14 is better; on the other hand, it can ensure that the tightness between the second flange 14 and the second screw sleeve 15 is better, avoiding the loosening of the second flange 14 and the second screw sleeve 15 under the condition of accidental vibration, so as to better ensure the stability and reliability of the rotation between the second flange 14 and the second screw sleeve 15.

[0072] Specifically, the polytetrafluoroethylene raw tape is wound on the first sealing pipe thread 121, and / or the second sealing pipe thread 113, and / or the third sealing pipe thread 151, and / or the fourth sealing pipe thread 143, so that the polytetrafluoroethylene raw tape can be crushed during the screwing process, and the polytetrafluoroethylene raw tape can be clamped at the gap of each sealing pipe thread, thereby better ensuring the sealing effect of the screwing.

[0073] Further, as shown in the figure, the second flange 14, the second screw sleeve 15, the clamping cylinder 13 and the long cable 2 form a second gap 17, and the second gap 17 is filled with a second radiation-resistant sealant, that is, the outer circumferential surface of the long cable 2 is filled with the second radiation-resistant sealant, so as to ensure the sealing effect between the long cable 2 and the connecting assembly 1. In the embodiment, the second radiation-resistant sealant is specifically a radiation-resistant epoxy resin glue. Figure 9

[0074] The specific installation process of the long cable connecting device for the radiation-resistant camera in the embodiment is as follows:

[0075] First, the polytetrafluoroethylene raw tape is wound on the two sections of the first sealing pipe thread 121 of the first screw sleeve 12, and the two sections of the first sealing pipe thread 121 and the two sections of the second sealing pipe thread 113 of the first flange 11 are screwed, so as to form two sections of the first sealing pipe thread pair 18 between the first screw sleeve 12 and the first flange 11; and the cable 101 of the radiation-resistant camera 10 is passed upwards through the first screw sleeve 12.

[0076] Then, the first radiation-resistant sealant is filled in the first gap 16 formed between the first flange 11, the first screw sleeve 12 and the cable 101 for sealing, and the first radiation-resistant sealant is cured.

[0077] Then, the third sealing member 141 is installed in the two third sealing ring grooves 142 of the second flange 14 respectively, and the second flange 14 is fixedly connected with the top end of the clamping cylinder 13 through the second screw 144; the polytetrafluoroethylene raw tape is wound on the two sections of the third sealing pipe thread 151 of the second screw sleeve 15, and the two sections of the third sealing pipe thread 151 are screwed with the two sections of the fourth sealing pipe thread 143 of the second flange 14, so as to form two sections of the second sealing pipe thread pair 19 between the second screw sleeve 15 and the second flange 14.

[0078] Then, the second radiation-resistant sealant is filled in the second gap 17 formed between the clamping cylinder 13, the second flange 14, the second screw sleeve 15 and the long cable 2 for sealing, and the second radiation-resistant sealant is cured; and the cable 101 is electrically connected with the long cable 2.

[0079] ​Then, the second sealing members 131 are respectively installed in the two second sealing ring grooves 132 of the clamping cylinder 13, and the bottom end of the clamping cylinder 13 is fixedly connected with the first flange 11 through the first screw 114.

[0080] Finally, the first sealing members 111 are respectively installed in the two first sealing ring grooves 112 of the first flange 11, and the bottom end of the first flange 11 is threadedly connected into the radiation-resistant camera 10, so as to complete the installation process between the long cable connecting device for the radiation-resistant camera and the radiation-resistant camera 10.

[0081] The long cable connecting device for the radiation-resistant camera in the embodiment can protect the outermost organic high polymer protective layer of the long cable 2, slow down the aging and cracking of the long cable 2 in the long-term acid mist corrosion environment, and guarantee the use performance of the long cable 2.

[0082] The long cable connecting device for the radiation-resistant camera in the embodiment can eliminate the tension between the long cable 2 and the second flange 14, eliminate the tension between the long cable 2 and the radiation-resistant camera 10, avoid the sealing failure caused by loosening, and guarantee the use performance of the radiation-resistant camera 10.

[0083] The long cable connecting device for the radiation-resistant camera in the embodiment can guarantee the sealing reliability between the long cable 2 and the radiation-resistant camera 10 by the sealing modes of the first sealing member 111, the second sealing member 131 and the third sealing member 141, the stepped thread sealing mode of the first sealing pipe threaded pair 18 and the second sealing pipe threaded pair 19, and the glue sealing mode of the first radiation-resistant sealing glue and the second radiation-resistant sealing glue, so as to better guarantee the use performance of the radiation-resistant camera 10.

[0084] The long cable connecting device for the radiation-resistant camera in the embodiment has the characteristics of simple overall structure, convenient installation, reliable sealing performance and strong acid corrosion resistance, so as to prolong the service life of the radiation-resistant camera 10 in the acid mist environment.

[0085] The above is only a preferred embodiment of the present application, and for those skilled in the art, according to the idea of the present application, the specific implementation and application range will be changed, and the content of the specification should not be understood as a limitation of the present application.

Claims

1. A long cable connection device for a radiation tolerant camera for hoisting a radiation tolerant camera (10) to be placed in an acid mist environment, characterized in that, The utility model relates to a kind of connecting assembly (1) for connecting with the radiation camera (10), the material of the connecting assembly (1) is acid-resistant material; Long cable (2), one end is arranged in the connecting assembly (1) and is connected with the cable (101) of the radiation camera (10), the other end is arranged outside the connecting assembly (1) and is connected with hoisting equipment; Metal hose (3), the material of the metal hose (3) is acid-resistant material, the metal hose (3) is connected to the top of the connecting assembly (1), and the metal hose (3) is used to cover the part of the long cable (2) arranged outside the connecting assembly (1). The gap between the outer circumferential surface of the long cable (2) and the inner wall surface of the metal hose (3) is 0.1mm-0.2mm.

2. The long cable connection apparatus for a radiation tolerant video camera of claim 1, wherein, The connecting position between the long cable (2) and the cable (101) has a buffer allowance.

3. The long cable connection apparatus for a radiation tolerant video camera of claim 1, wherein, The connecting assembly (1) comprises:

4. A long cable connection for a radiation tolerant video camera as claimed in any one of claims 1-3, characterized in that, First flange (11) and first screw sleeve (12), the first flange (11) is connected with the radiation camera (10), and at least part of the first screw sleeve (12) is connected in the first flange (11), and the cable (101) passes through the first screw sleeve (12); Clamping cylinder (13), the bottom end is connected to the top of the first flange (11), and the first screw sleeve (12) is located in the clamping cylinder (13); Second flange (14) and second screw sleeve (15), the second flange (14) is connected to the top of the clamping cylinder (13), and at least part of the second screw sleeve (15) is connected in the second flange (14), and the long cable (2) is sequentially arranged downwards into the second screw sleeve (15) and the clamping cylinder (13) to be electrically connected with the cable (101), and the metal hose (3) is connected to the top of the second screw sleeve (15). At least two first sealing members (111) are arranged between the first flange (11) and the radiation camera (10), and / or at least two second sealing members (131) are arranged between the first flange (11) and the bottom end of the clamping cylinder (13).

5. The long cable connection apparatus for a radiation tolerant video camera of claim 4, wherein, The outer circumferential surface of the first screw sleeve (12) is provided with at least two first sealing tube threads (121), and the inner wall surface of the first flange (11) is provided with at least two second sealing tube threads (113), the first sealing tube threads (121) and the second sealing tube threads (113) are screwed to form a first sealing tube thread pair (18).

6. The long cable connection apparatus for a radiation tolerant video camera of claim 4, wherein, First gap (16) is formed between the first flange (11), the first screw sleeve (12) and the cable (101), and the first gap (16) is filled with first radiation-resistant sealant.

7. The long cable connection apparatus for a radiation tolerant video camera of claim 4, wherein, At least two third sealing members (141) are arranged between the second flange (14) and the top of the clamping cylinder (13).

8. The long cable connection apparatus for a radiation tolerant video camera of claim 4, wherein, ​ 9. The long cable connection apparatus for a radiation tolerant video camera of claim 4, wherein, The outer circumferential surface of the second screw sleeve (15) is provided with at least two third sealing pipe threads (151), and the inner wall surface of the second flange (14) is provided with at least two fourth sealing pipe threads (143), the third sealing pipe threads (151) and the fourth sealing pipe threads (143) are threadedly combined to form a second sealing pipe thread pair (19).

10. The long cable connection apparatus for a radiation tolerant video camera of claim 4, wherein, The second flange (14), the second screw sleeve (15), the clamping cylinder (13) and the long cable (2) form a second gap (17), and the second gap (17) is filled with a second radiation-resistant sealant.

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