A cable sample retention device for high temperature gas-cooled reactor

Abstract

The present invention discloses a cable sample retention device for a high temperature gas-cooled reactor, comprising a cable fixing device, wherein the sample retention cable is fixed in a cable sample retention groove through the cable fixing device, the cable sample retention groove opening and closing device is used to control the opening and closing of the cable sample retention groove, a sample retention groove telescopic fixing device is arranged outside the cable sample retention groove, a pull rod is installed on the groove body of the cable sample retention groove, the pull rod is used to move the cable sample retention groove by cooperating with a pulley, wherein the pulley is installed at the bottom of the cable sample retention groove, and the sample retention groove fixing device is used to control the movement and fixation of the cable sample retention device. The beneficial effect of the present invention is that the material used in the present invention is stainless steel material, which has good corrosion resistance, and at the same time, the present device can be well matched with the pipe-threading cable in actual operation, and can simulate the operating state of the in-service cable to the maximum extent, and provide reliable guarantee for analyzing the insulation state of the cable and maintaining the safe and stable operation of the nuclear power plant.

Description

Technical Field

[0001] The invention belongs to a cable sample retaining device for a nuclear power plant, and in particular relates to a cable sample retaining device for a high-temperature gas-cooled reactor. Background Art

[0002] As an important component of electrical components in nuclear power plants, the operating status of nuclear-grade cables is crucial to the safe and stable operation of nuclear power plants. For cables in service in nuclear power plants, their operation is mainly affected by temperature, humidity and radiation, which reduces the insulation strength of the cables and affects the safe and stable operation of nuclear power plants. Cables are distributed in various areas of power plants, especially in pipe-through cables in high-temperature gas-cooled reactors. Due to the high temperature of high-temperature gas-cooled reactors, the operating temperature is as high as 750°C. Affected by temperature, the insulation strength of cables decreases rapidly, so it is particularly important to monitor the insulation status of cables.

[0003] The laying of cables inside nuclear power plants is relatively complicated, so the cable sampling method is used to simulate the actual operating status of in-service cables. Due to the high temperature and complex surrounding environment of high temperature gas-cooled reactors during operation, there is currently no cable sampling device suitable for high temperature gas-cooled reactors that can meet specific applications. Summary of the invention

[0004] The object of the present invention is to provide a cable sample retention device for a high temperature gas-cooled reactor, which can detect the insulation aging state of the pipe-threaded cable in the high temperature gas-cooled reactor in real time.

[0005] The technical solution of the present invention is as follows: a cable sample retention device for a high-temperature gas-cooled reactor, comprising a cable fixing device, a sample retention cable is fixed in a cable sample retention groove through the cable fixing device, a cable sample retention groove opening and closing device is used to control the opening and closing of the cable sample retention groove, a sample retention groove telescopic fixing device is arranged on the outside of the cable sample retention groove, a pull rod is installed on the groove body of the cable sample retention groove, the pull rod is used to move the cable sample retention groove by cooperating with a pulley, wherein the pulley is installed at the bottom of the cable sample retention groove, and the sample retention groove fixing device is used to control the movement and fixation of the cable sample retention device.

[0006] The cable sample retaining groove is made of stainless steel.

[0007] The sample retaining groove telescopic fixing device comprises two groups, which are installed on the groove body of the cable sample retaining groove to control the height of the cable sample retaining groove.

[0008] The pull rods are installed on the groove body of the cable sample groove, and two of them are installed in total.

[0009] A total of 8 pulleys are installed at the bottom of the cable sample groove.

[0010] A sample retention tray device is also included.

[0011] The sample tray device includes a cable sample slot tray, a tray telescopic device, a long rod, a roller fixing device, and a roller. The cable sample slot tray is used to fix the cable sample slot. The tray telescopic device is composed of a spring energy storage device. The long rod and the roller are used to control the movement of the cable sample slot tray. The roller fixing device is composed of a spring energy storage element, which is used to fix the roller by storing and releasing spring potential energy.

[0012] The beneficial effects of the present invention are as follows: the material used in the present invention is stainless steel, which has good corrosion resistance. At the same time, the device can be well matched with the pipe-threading cables in actual operation, and can simulate the operating status of the in-service cables to the maximum extent, providing reliable guarantees for analyzing the insulation status of the cables and maintaining the safe and stable operation of the nuclear power plants. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of a cable sample retention device for a high temperature gas-cooled reactor provided by the present invention;

[0014] Figure 2 for Figure 1 Schematic cross-sectional view of ;

[0015] Figure 3 This is a schematic diagram of the compressed state of the sample tray;

[0016] Figure 4 This is a schematic diagram of the sample tray in the straightened state.

[0017] In the figure, 1 is a cable fixing device, 2 is a cable sample groove, 3 is a cable sample groove opening and closing device, 4 is a pull rod, 5 is a sample groove telescopic fixing device, 6 is a sample groove fixing device, 7 is a pulley, 8 is a cable sample groove tray, 9 is a tray telescopic device, 10 is a long rod, 11 is a pulley fixing device, 12 is a roller, and 13 is a handle. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] like Figure 1-4As shown, the present invention provides a cable sample retention device for a high-temperature gas-cooled reactor, comprising a cable fixing device 1, wherein the sample retention cable is fixed in a cable sample retention groove 2 through the cable fixing device 1, so as to suspend and fix the cable so as to make the cable evenly irradiated, the cable sample retention groove 2 is the main structure of the entire cable sample retention device, and is made of stainless steel material, and has a high degree of fit with the structure of the high-temperature gas-cooled reactor, the cable sample retention groove opening and closing device 3 is used to control the opening and closing of the cable sample retention groove 2, and the opening and closing of the cable sample retention groove 2 can be achieved by manual opening and closing, and a sample retention groove telescopic fixing device 5 is arranged outside the cable sample retention groove 2, and two sets of sample retention groove telescopic fixing devices are arranged in total, which are installed on the groove body of the cable sample retention groove 2 to control the height of the cable sample retention groove 2, so as to be conveniently applied to high-temperature gas-cooled reactors in different space environments. Stack, two pull rods 4 are installed on the trough body of the cable sample trough 2, and the pull rods 4 are used in conjunction with the pulley 7 to move the cable sample trough 2, wherein 8 pulleys 7 are installed in total, which are installed at the bottom of the cable sample trough 2, and the cable sample trough can accurately reach the designated position and withdraw in time through cooperation with the pull rod 4, so as to facilitate the installation and removal of the cable, and the sample trough fixing device 6 is used to control the movement and fixation of the cable sample device, when the cable sample trough 2 needs to be moved, the sample trough fixing device 6 is opened to release the stored spring potential energy, and the cable sample device is moved to the designated position through the cooperation of the pull rod 4 and the pulley 7, and when the cable sample trough 2 needs to be fixed, the sample trough fixing device 6 is closed, and the sample trough fixing device 6 will store the spring potential energy to fix the cable sample trough 2, so that the cable sample device is fixed.

[0020] Since the internal space structure of the power plant is relatively complex, in order to better fit the actual space environment in the power plant, this device can be used vertically or horizontally. When used horizontally, a sample tray device is used to fix the cable sample device.

[0021] The sample tray device includes a cable sample slot tray 8, a tray telescopic device 9, a long rod 10, a roller fixing device 11, and a roller 12. The cable sample slot tray 8 is used as a carrier for fixing the cable sample slot when the cable sample slot is placed horizontally. The tray telescopic device 9 is composed of a spring energy storage device, which is used to control the height of the cable sample slot tray 8 through the storage and release of spring potential energy, so that the cable sample slot can be raised or lowered to be suitable for various complex spatial structures inside the power plant. The long rod 10 and the roller 12 are used to control the movement of the cable sample slot tray 8 so that the sample tray device can reach the specified position. The roller fixing device 11 is composed of a spring energy storage element, which is used to fix the roller 12 through the storage and release of spring potential energy. When in use, the roller fixing device 11 is opened and the movement of the sample tray device is controlled by the long rod 10. When the cable sample device reaches the specified position, the roller fixing device 11 is closed to fix the sample tray device.

[0022] The parts not described in detail in the present invention are all well-known technologies to those skilled in the art. This device is a cable sampling device applied to high-temperature gas-cooled reactors, which simulates the aging state of the pipe-threaded cables in high-temperature gas-cooled reactors to the greatest extent. At the same time, the materials used for the main components in the present invention are all stainless steel materials, which greatly improves the high temperature resistance and corrosion resistance of the device, and provides an important basis for monitoring the aging state of the pipe-threaded cables in high-temperature gas-cooled reactors in nuclear power plants.

Claims

1. A cable sample retention device for a high temperature gas-cooled reactor, characterized in that: The utility model comprises a cable fixing device, wherein the sample cable is fixed in the cable sample groove by the cable fixing device, the cable sample groove opening and closing device is used to control the opening and closing of the cable sample groove, a sample groove telescopic fixing device is arranged on the outside of the cable sample groove, a pull rod is installed on the groove body of the cable sample groove, the pull rod is used for moving the cable sample groove by cooperating with a pulley, wherein the pulley is installed at the bottom of the cable sample groove, and the sample groove fixing device is used to control the movement and fixation of the cable sample device; the utility model also comprises a sample tray device, wherein the sample tray device comprises a cable sample groove tray, a tray telescopic device, a long rod, a roller fixing device, and a roller, the cable sample groove tray is used to fix the cable sample groove, the tray telescopic device is composed of a spring energy storage device, the long rod cooperates with the roller to control the movement of the cable sample groove tray, the roller fixing device is composed of a spring energy storage element, and is used to fix the roller by storing and releasing spring potential energy, and two pull rods are installed on the groove body of the cable sample groove.

2. A cable sample retention device for a high temperature gas-cooled reactor according to claim 1, characterized in that: The cable sample retaining groove is made of stainless steel.

3. A cable sample retention device for a high temperature gas-cooled reactor according to claim 1, characterized in that: The sample retaining groove telescopic fixing device comprises two groups, which are installed on the groove body of the cable sample retaining groove to control the height of the cable sample retaining groove.

4. A cable sample retention device for a high temperature gas-cooled reactor according to claim 1, characterized in that: A total of 8 pulleys are installed at the bottom of the cable sample groove.

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