Nuclear power plant cable fixing device

Abstract

The utility model discloses a cable fixing device for a nuclear power plant. The cable fixing device comprises a fixing assembly, a traction assembly and a positioning assembly. According to the nuclear power plant cable fixing device, the fixing assembly is arranged, so that a cable fixing point can be transferred to the nuclear power plant cable fixing device from a probe cable core, the problem that a cable interface is broken due to repeated stress can be solved, and a cable installation mode is optimized. And by arranging the traction assembly, after the cable is fixed by the fixing assembly, the fixing assembly and the cable can be driven to move, and the cable can be remotely pulled to a proper position, so that the position of the cable can be adjusted according to on-site conditions, and the cable is prevented from being excessively stressed or bent. Meanwhile, the positioning assembly can be positioned and installed on an installation structure of the nuclear power plant, and field installation conditions are provided for fixing of the cable.

Description

TECHNICAL FIELD

[0001] The utility model relates to nuclear power plant maintenance field especially, relate to a nuclear power plant cable fixing device. BACKGROUND

[0002] Nuclear power plant reactor boron and water supply system has two desalted oxygen-free water storage tanks, and the floating top moves up and down in the process of filling and draining, and the probe is a desalted oxygen-free water storage tank floating top inclination measurement probe, which is installed on the edge of the floating top, if the floating top is inclined, the probe level changes, the internal contact acts, and the alarm is triggered.

[0003] In the daily filling and draining process of the desalted oxygen-free water storage tank, the probe moves up and down with the floating top, the pulley and the sliding block are used to facilitate the movement of the cable, and the cable and the probe are connected by wire core welding and gland locking.

[0004] The cable joint of each nuclear power plant has been disconnected many times, which causes the sliding block to fall from a high place, and there is a great industrial safety risk. After inspection, the cable joint welding point is disconnected each time, it is confirmed that the cable joint welding point is a weak force point, and the current cable position cannot be moved, the position cannot be adjusted according to the actual situation, and there is a lack of a device that can fix and lock the cable. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem in that a nuclear power plant cable fixing device is provided.

[0006] The utility model adopts the technical scheme to solve the technical problem: a nuclear power plant cable fixing device is constructed, which comprises a fixing assembly, a traction assembly and a positioning assembly;

[0007] The fixing assembly is used for fixing the cable;

[0008] The traction assembly comprises a guide rail connected to the positioning assembly, a sliding block movably connected to the guide rail, a fixing plate connected to the sliding block, a traction driver connected to the positioning assembly and used for driving the movement of the fixing plate, and the fixing assembly is installed on the fixing plate;

[0009] The positioning assembly is installed on the installation structure of the nuclear power plant.

[0010] In some embodiments, the positioning assembly comprises a connecting piece connected to the installation structure of the nuclear power plant and a support connected to the connecting piece;

[0011] The guide rail and the traction driver are both connected to the support.

[0012] In some embodiments, the connecting piece is provided with a first adjusting hole and a second adjusting hole, the first adjusting hole is used for connecting with the installation structure of the nuclear power plant, and the second adjusting hole is used for connecting with the support.

[0013] In some embodiments, the number of the connecting pieces is two, and the two connecting pieces are connected at the bottom of the support.

[0014] In some embodiments, the support is provided with a clearance.

[0015] In some embodiments, the fixing assembly comprises a base connected to the fixing plate and a cover connected to the base.

[0016] The cover is rotationally connected to the base through a rotating shaft.

[0017] In some embodiments, the base is provided with a first clamping groove, and the cover is provided with a second clamping groove corresponding to the first clamping groove.

[0018] In some embodiments, the first clamping groove and the second clamping groove are both provided with a buffer.

[0019] In some embodiments, the cover is provided with a fixing hole and a locking hole, the base is provided with a matching hole corresponding to the fixing hole, and the locking hole is in communication with the second clamping groove.

[0020] In some embodiments, a plurality of the fixing assemblies are arranged in multiple rows on the fixing plate, and each row of the fixing assemblies is used for fixing one cable.

[0021] The nuclear power plant cable fixing device has the following beneficial effects: the cable fixing point is transferred from the probe cable core to the nuclear power plant cable fixing device through the fixing assembly, the problem of cable interface being disconnected multiple times is solved, the cable installation mode is optimized, the fixing assembly and the cable are driven to move after the cable is fixed by the fixing assembly, the cable can be remotely pulled to a suitable position, the cable position is adjusted according to the on-site condition, the cable is prevented from being subjected to excessive stress or being bent, and the positioning assembly is arranged on the installation structure of the nuclear power plant to provide on-site installation conditions for the fixing of the cable. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme of the utility model, the utility model will be further described below in conjunction with the drawings and embodiments, it should be understood that the following drawings only show some embodiments of the utility model, therefore should not be regarded as limiting the scope, for the ordinary skilled person in the art, under the premise of not paying creative labor, can also obtain other related drawings according to these drawings. In the drawings,

[0023] Figure 1 It is the overall structure schematic diagram of nuclear power plant cable fixing device in some embodiments of the utility model;

[0024] Figure 2 It is the structure schematic diagram of fixed assembly in some embodiments of the utility model. DETAILED DESCRIPTION

[0025] In order to have more clear understanding of the technical features, object and effect of the utility model, the specific implementation mode of the utility model will be described in detail by referring to the drawings. In the following description, it should be understood that the orientation or positional relationship indicated by "front", "back", "upper", "lower", "left", "right", "vertical", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail" and the like is the orientation or positional relationship shown in the drawings, constructed and operated in a particular orientation, and is only for the convenience of describing the technical scheme, and should not be understood as indicating that the indicated device or element must have a particular orientation, therefore should not be understood as limiting the utility model.

[0026] It should also be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing", "setting" and the like should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or can be integrated, can be mechanically connected, or can be electrically connected, can be directly connected, or can be indirectly connected through an intermediate medium, or can be the internal communication of two elements or the interaction relationship of two elements. When an element is referred to as "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there can be one or more intermediate elements. The terms "first", "second", "third" and the like are only for the convenience of describing the technical scheme, and should not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features, therefore, the features limited by "first", "second", "third" and the like can explicitly or implicitly include one or more features. For the ordinary skilled person in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] Please refer to Figure 1 And Figure 2The utility model discloses a nuclear power plant cable fixing device, including fixed subassembly 1, traction subassembly 2 and positioning assembly 3. Fixed subassembly 1 is used for fixing cable, and traction subassembly 2 is connected with fixed subassembly 1, and is used for driving fixed subassembly 1 and cable to move, and traction subassembly 2 includes guide rail 21 connected on positioning assembly 3, sliding block 22 movably connected with guide rail 21, fixed plate 23 connected with sliding block 22, traction driver 24 connected on positioning assembly 3 and used for driving fixed plate 23 to move, and fixed subassembly 1 is installed on fixed plate 23, and positioning assembly 3 is installed on the mounting structure of nuclear power plant.

[0028] Specifically, the mounting structure of the nuclear power plant is the floating roof of the nuclear power plant, the positioning assembly 3 can be fixed on the floating roof of the nuclear power plant by bolts, and the traction driver 24 can be an electric driver, which can drive the fixed plate 23 to move through a screw rod structure, thereby driving the fixed subassembly 1 and the cable to move. The electric driver is in communication connection with an external control system, and an operator can remotely pull the cable through the control system to adjust the position of the cable according to the on-site conditions to prevent the cable from being excessively stressed or bent. The cable can be wrapped with rubber to prevent wear and tear.

[0029] Understandably, the nuclear power plant cable fixing device can shift the cable fixing point from the probe cable core to the nuclear power plant cable fixing device by setting the fixed subassembly 1, which can solve the problem of repeated stress breakage of the cable interface and optimize the cable installation method. By setting the traction subassembly 2, the fixed subassembly 1 and the cable can be moved after the cable is fixed by the fixed subassembly 1, and the cable can be remotely pulled to a suitable position to adjust the position of the cable according to the on-site conditions to prevent the cable from being excessively stressed or bent. The positioning assembly 3 can be positioned and installed on the mounting structure of the nuclear power plant, providing on-site installation conditions for the cable fixing.

[0030] As shown in Figure 1 The positioning assembly 3 includes a connecting piece 31 connected with the mounting structure of the nuclear power plant and a support piece 32 connected with the connecting piece 31, and the guide rail 21 and the traction driver 24 are connected with the support piece 32. The guide rail 21 and the traction driver 24 can be connected with the support piece 32 by bolts.

[0031] The connector 31 has a first adjustment hole 311 and a second adjustment hole 312. The first adjustment hole 311 is used to connect with the installation structure of the nuclear power plant, and the second adjustment hole 312 is used to connect with the support member 32. The first adjustment hole 311 facilitates the on-site installation of the connector 31 with the installation structure of the nuclear power plant, and the second adjustment hole 312 facilitates the installation between the connector 31 and the support member 32. There are two connectors 31, which are connected to the bottom of the support member 32. The cross-section of the connector 31 is bent. The two connectors 31 can be fixed to the support member 32 with bolts to ensure the stability of the connection of the support member 32. In addition, the support member 32 has a clearance part 321. The cross-section of the support member 32 is inverted U-shaped. The clearance part 321 can be adapted to the on-site installation structure.

[0032] like Figure 2 As shown, the fixing assembly 1 includes a base 11 connected to a fixing plate 23 and a cover 12 connected to the base 11. The cover 12 is rotatably connected to the base 11 via a rotating shaft 13. The base 11 can be bolted to the fixing plate 23, and the base 11 and the fixing plate 23 are detachably connected. The size of the base 11 can be adjusted according to the actual size of the cable. The base 11 is provided with a first engaging groove 111, and the cover 12 is provided with a second engaging groove 121 corresponding to the first engaging groove 111. Both the first engaging groove 111 and the second engaging groove 121 are approximately semi-circular. The space formed between the first engaging groove 111 and the second engaging groove 121 can accommodate the cable. When the cable is accommodated in the first engaging groove 111, the cover 12 can be rotated so that the first engaging groove 111 and the second engaging groove 121 clamp the cable together. Both the first engagement groove 111 and the second engagement groove 121 are equipped with buffers, which can be rubber blocks, to reduce the friction between the base 11 or the cover 12 and the cable, thus protecting the cable from damage.

[0033] In addition, the cover 12 is provided with a fixing hole 122 and a locking hole 123, and the base 11 is provided with a mating hole corresponding to the fixing hole 122. The locking hole 123 communicates with the second engaging groove 121. The fixing hole 122 can be a through hole, and the mating hole can be a threaded hole. A bolt can be inserted into the fixing hole 122 and installed in the mating hole to complete the fixing between the cover 12 and the base 11. The locking hole 123 can be a threaded hole, and a bolt can be installed in the locking hole 123 to lock the position of the cable.

[0034] Furthermore, multiple fixing components 1 are arranged in multiple rows on the fixing plate 23, with each row of fixing components 1 used to fix one cable. In this embodiment, as... Figure 1As shown, the number of the fixing assemblies 1 is 6, and the 6 fixing assemblies 1 are arranged on the fixing plate 23 in two rows, and the multiple rows of fixing assemblies 1 can fix multiple cables at the same time, each row of multiple fixing assemblies 1 can fix one cable at the same time, and the stability of cable fixing is enhanced, and the cable does not appear to be bent or pressed after being fixed.

[0035] It can be understood that the above embodiments only express the preferred embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application; it should be pointed out that for ordinary skilled in the art, the above technical features can be freely combined without departing from the concept of the present application, and a number of modifications and improvements can be made, which belong to the protection scope of the present application; therefore, any equivalent transformation and modification within the scope of the claims of the present application shall belong to the scope of the claims of the present application.

Claims

1. A nuclear power plant cable fixation device, characterized by, The utility model relates to a cable fixing device for nuclear power plant, which comprises a plurality of fixing assemblies (1), traction assemblies (2) and positioning assemblies (3). The plurality of fixing assemblies (1) are used for fixing cables. The traction assembly (2) comprises a guide rail (21) connected to the positioning assembly (3), a sliding block (22) movably connected to the guide rail (21), a fixed plate (23) connected to the sliding block (22), a traction driver (24) connected to the positioning assembly (3) and used for driving the fixed plate (23) to move, and the fixing assembly (1) is mounted on the fixed plate (23). The positioning assembly (3) is mounted on the installation structure of the nuclear power plant.

2. The nuclear power plant cable fixation device of claim 1, wherein, The positioning assembly (3) comprises a connecting piece (31) connected to the installation structure of the nuclear power plant and a support piece (32) connected to the connecting piece (31). The guide rail (21) and the traction driver (24) are both connected to the support piece (32).

3. The nuclear power plant cable fixation device of claim 2, wherein, The connecting piece (31) is provided with a first adjusting hole (311) and a second adjusting hole (312), the first adjusting hole (311) is used for connecting to the installation structure of the nuclear power plant, and the second adjusting hole (312) is used for connecting to the support piece (32).

4. The nuclear power plant cable fixation device of claim 2, wherein, The number of the connecting pieces (31) is two, and the two connecting pieces (31) are connected to the bottom of the support piece (32).

5. The nuclear power plant cable fixation device of claim 2, wherein, The support piece (32) is provided with a clearance (321).

6. The nuclear power plant cable fixation device of claim 5, wherein, The fixing assembly (1) comprises a base (11) connected to the fixed plate (23) and a cover (12) connected to the base (11). The cover (12) is rotatably connected to the base (11) through a rotating shaft (13).

7. The nuclear power plant cable fixation device of claim 6, wherein, The base (11) is provided with a first clamping groove (111), and the cover (12) is provided with a second clamping groove (121) corresponding to the first clamping groove (111).

8. The nuclear power plant cable fixation device of claim 7, wherein, The first clamping groove (111) and the second clamping groove (121) are both provided with a buffer.

9. The nuclear power plant cable fixation device of claim 7, wherein, The cover (12) is provided with a fixing hole (122) and a locking hole (123), and the base (11) is provided with a matching hole corresponding to the fixing hole (122), and the locking hole (123) is in communication with the second clamping groove (121).

10. The nuclear power plant cable fixation device of claim 6, wherein, The plurality of fixing assemblies (1) are arranged in multiple rows on the fixed plate (23), and each row of the fixing assemblies (1) is used for fixing one cable.

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