Ventilation, heat dissipation and fire prevention device for cable well

Abstract

The invention provides a ventilation, heat dissipation and fire prevention device for a cable well, which belongs to the technical field of cable engineering and comprises a cable well body, an air inlet well and a cable mounting bracket, the cable mounting bracket is transversely arranged in an inner cavity of the cable well body, the cable mounting bracket comprises a cable mounting part and a ventilation part, the cable mounting part is provided with a plurality of limiting and clamping assemblies, and the inner sides of the limiting and clamping assemblies form a circular avoidance space; the ventilation part is provided with a plurality of longitudinal ventilation holes, and fireproof valves are installed at the upper ends of the ventilation holes. The fire damper is opened and closed to close the vent hole. According to the ventilation, heat dissipation and fire prevention device for the cable well, the ventilation holes are formed in the ventilation part of the cable installation support and located in one side of the cable, efficient circulation of air in the cable well body is achieved, and heat accumulation generated by cable operation is reduced; the fireproof valves are installed at the ventilation holes, the cable well body can be closed by closing the fireproof valves, a fireproof isolation belt is formed, and fire spreading is effectively blocked.

Description

Technical Field

[0001] The invention belongs to the technical field of cable engineering, and more specifically, relates to a ventilation, heat dissipation and fire prevention device for a cable well. Background Art

[0002] In modern buildings, cable wells are important channels for power cables, and their design and maintenance are directly related to the safety and operating efficiency of the building. However, the space utilization rate of traditional cable well structures is low, and their design often focuses on the laying and protection of cables, ignoring the importance of ventilation, heat dissipation and fire safety.

[0003] With the expansion of building scale and the increase of cable load, the problem of temperature and heat accumulation in cable wells has become increasingly prominent, increasing the risk of fire. At the same time, the disorder of cables also brings inconvenience to maintenance and management. Therefore, it is of great significance to develop a cable well device that can not only meet the needs of cable fixing, but also achieve efficient ventilation and heat dissipation, automatic fire isolation and fire extinguishing. Summary of the invention

[0004] The purpose of the present invention is to provide a cable well ventilation, heat dissipation and fire prevention device, aiming to solve the problems of poor ventilation and poor fire prevention effect in the cable well.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a cable well ventilation, heat dissipation and fire prevention device, including a cable well body, an air inlet well and a cable installation bracket; the air inlet well is located on one side of the cable well body, an air inlet is provided at the upper end of the air inlet well, and the lower end of the air inlet well is connected with the bottom of the cable well body; an air outlet is provided at the top of the cable well body; the cable installation bracket is transversely arranged in the inner cavity of the cable well body, the cable installation bracket includes a cable installation part and a ventilation part, the cable installation part has a plurality of limit clamping components, the inner side of the limit clamping components forms a circular clearance space, the clearance space allows the cable to pass through, and the limit clamping component has radial freedom along the clearance space to limit the cable; the ventilation part has a plurality of longitudinal ventilation holes, and a fire damper is installed at the upper end of the ventilation hole; the fire damper is opened and closed for closing the ventilation hole; a sensing device is provided below the ventilation hole, and the sensing device includes a temperature sensing element and a smoke detector.

[0006] As another embodiment of the present application, a fire extinguishing system is provided under the cable installation bracket, and the fire extinguishing system includes a fire extinguishing agent storage tank, a fire extinguishing agent release pipe, a pressure sensor and a control system, the pressure sensor is located on the inner side of the fire damper, the pressure sensor is electrically connected to the control system, the control system is electrically connected to the valve on the fire extinguishing agent release pipe, the valve receives the opening and closing signal of the control system and controls the release state of the fire extinguishing agent; the fire extinguishing agent storage tank is located in the inner cavity or outer side of the cable well body; the fire extinguishing agent release pipe is laterally distributed in the inner cavity of the cable well body, and the upward projection of the fire extinguishing agent release pipe is located on one side of the ventilation hole; the fire extinguishing agent release pipe is provided with a plurality of release ports, and the outlet direction of the release port is vertically downward or inclined downward.

[0007] As another embodiment of the present application, the cable installation bracket includes a frame, the frame includes a frame and an inner beam, the frame is attached to the side wall of the cable well body, and the frame is fixedly matched with the cable well body; the inner beam is fixed to the frame, the inner beam is used to divide the cable installation part and the ventilation part, and the inner beam is used to support the limit clamping assembly and the fire damper.

[0008] As another embodiment of the present application, the cable installation portion includes a plurality of installation plates, the installation plates are overlapped on top of the inner beam, the corners of the installation plates have threaded portions, bolts penetrate the threaded portions of the installation plates and are fixed to the inner beam; a longitudinal installation hole is opened in the middle of the installation plate, the installation hole is coaxial with the clearance space, the limit clamping assembly corresponds to the installation plate one by one, and the limit clamping assembly is located on the inner side of the installation hole.

[0009] As another embodiment of the present application, the limiting clamping assembly includes a plurality of groups of clamping assemblies distributed at equal intervals, and the clamping assembly includes a sliding plate, an elastic member, an abutment plate and a shock-absorbing pad; the sliding plate is connected to the mounting plate along the radial sliding direction of the mounting hole, and the sliding plate is connected to the inner side of the mounting hole in the radial direction, and the elastic member has radial freedom along the mounting hole; the end of the elastic member is connected to the abutment plate, and the abutment plate is an arc-shaped plate, and the shock-absorbing pad is fixed on the side of the abutment plate away from the elastic member; multiple groups of the clamping assemblies located on the same upper row of the mounting plate cooperate to make the multiple abutment plates enclose the clearance space.

[0010] As another embodiment of the present application, the longitudinal cross-section of the sliding plate is L-shaped, and the sliding plate includes a transverse plate and a vertical plate, the vertical plate is located at the inner end of the transverse plate, and the vertical plate is used to connect the elastic member; the outer end of the transverse plate extends to the lower end surface of the mounting plate and slidably cooperates with the lower end surface of the mounting plate, and the lower end of the transverse plate is connected to a driving assembly, and the driving assembly is used to drive the transverse plate to move horizontally along the radial direction of the mounting hole; the driving assembly includes a driving motor, a driving threaded rod and a slider, and the driving motor is fixed to the mounting plate; the length direction of the driving threaded rod is consistent with the radial direction of the mounting hole; the end of the driving threaded rod extends to the bottom of the transverse plate, the slider is sleeved on the outer side of the driving threaded rod and threadedly cooperates with the driving threaded rod, and the upper end of the slider is fixedly connected to the transverse plate.

[0011] As another embodiment of the present application, the driving component also includes a cable sensing system and a scanner, wherein the cable sensing system is electrically connected to the scanner and the driving motor; the scanner is disposed on the mounting plate and located on one side of the mounting hole, and the scanner is used to identify the diameter of the cable; the cable sensing system receives the signal transmission from the scanner and controls the opening and closing of the driving motor.

[0012] As another embodiment of the present application, it also includes a cooling system, which includes a plurality of cooling coils, a longitudinal liquid supply pipe and a longitudinal liquid return pipe, the longitudinal liquid supply pipe and the longitudinal liquid return pipe are arranged at intervals in the transverse direction, and the longitudinal liquid supply pipe and the longitudinal liquid return pipe are both connected to a cold source; a plurality of groups of cooling coils are distributed at intervals in the longitudinal direction, and the two ends of each group of cooling coils are respectively connected to the longitudinal liquid supply pipe and the longitudinal liquid return pipe; a plurality of nozzles are opened on the cooling coil; and the cooling coil is located below the fire extinguishing agent release pipe.

[0013] As another embodiment of the present application, there are multiple cable installation brackets, and the multiple cable installation brackets are longitudinally spaced apart. The fire extinguishing system and the cooling system are provided between two adjacent cable installation brackets, and the cooling coils located in the same area are located below the fire extinguishing agent release pipe.

[0014] As another embodiment of the present application, the cable installation part and the ventilation part of two adjacent cable installation brackets are staggered; there are two fire extinguishing systems between two adjacent cable installation brackets, and the release port in the fire extinguishing system is located below the ventilation hole of the cable installation bracket above it.

[0015] The beneficial effects of the cable well ventilation, heat dissipation and fire prevention device provided by the present invention are as follows: compared with the prior art, the cable well ventilation, heat dissipation and fire prevention device of the present invention, by connecting the air inlet well at the lower end of the cable well body and arranging an air outlet at the upper end thereof, forms air flow in the cable well due to the height difference; the cable is fixed to the cable installation part by a cable installation bracket to avoid cable clutter; the ventilation hole is opened in the ventilation part of the cable installation bracket, located on one side of the cable, realizes efficient circulation of air in the cable well body, reduces heat accumulation generated by cable operation, and alleviates the problem of cable aging and insulation performance degradation caused by high temperature; and by installing fire dampers at the ventilation holes, it is possible to realize timely detection of the temperature and smoke value in the cable well body, and timely close the fire dampers to close the cable well body to form a fire isolation zone, thereby effectively blocking the spread of fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the structure of a cable well ventilation, heat dissipation and fire prevention device provided in an embodiment of the present invention; Figure 2 A top view of a cable installation bracket provided by an embodiment of the present invention; Figure 3 A schematic diagram of the structure of a mounting plate and a position limiting clamping assembly provided in an embodiment of the present invention; Figure 4 A schematic diagram of the connection between the mounting plate and the position limiting clamping assembly provided in an embodiment of the present invention; Figure 5 A schematic diagram of the structure of a cooling system provided in the first embodiment of the present invention; Figure 6 This is a schematic structural diagram of a cooling system provided in a second embodiment of the present invention.

[0018] In the figure: 1. Cable shaft body; 2. Air outlet; 3. Air inlet shaft; 4. Air inlet; 5. Guide plate; 6. Cable; 7. Cable mounting bracket; 8. Fire damper; 9. Induction device; 10. Drainage plate; 11. Fire extinguishing agent release pipe; 12. Fire extinguishing agent storage tank; 13. Release port; 14. Frame; 15. Mounting plate; 16. Scanner; 17. Ventilation hole; 18. Sliding plate; 19. Abutment plate; 20. Shock-absorbing pad; 21. Elastic member; 22. Horizontal plate; 23. Vertical plate; 24. Drive motor; 25. Drive threaded rod; 26. Longitudinal liquid delivery pipe; 27. Longitudinal liquid return pipe; 28. Cooling coil; 29. ​​Nozzle. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] See also Figures 1 to 6 Now, the cable 6 well ventilation, heat dissipation and fire prevention integrated device provided by the present invention is described. The cable 6 well ventilation, heat dissipation and fire prevention integrated device comprises a cable well body 1, an air inlet well 3 and a cable installation bracket 7; the air inlet well 3 is located on one side of the cable well body 1, an air inlet 4 is provided at the upper end of the air inlet well 3, and the lower end of the air inlet well 3 is connected to the bottom of the cable well body 1; an air outlet 2 is provided at the top of the cable well body 1; the cable installation bracket 7 is horizontally arranged in the inner cavity of the cable well body 1, the cable installation bracket 7 comprises a cable 6 installation part and a ventilation part, the cable 6 installation part has a plurality of limiting clamping components, a circular clearance space is formed on the inner side of the limiting clamping components, the clearance space allows the cable 6 to pass through, and the limiting clamping components have radial freedom along the clearance space to limit the cable 6; the ventilation part has a plurality of longitudinal ventilation holes 17, a fire damper 8 is installed at the upper end of the ventilation hole 17; the fire damper 8 is opened and closed to close the ventilation hole 17; a sensing device 9 is provided below the ventilation hole 17, and the sensing device 9 comprises a temperature sensing element and a smoke detector.

[0021] Compared with the prior art, the integrated ventilation, heat dissipation and fire prevention device for the cable 6 well provided by the present invention connects the air inlet well 3 at the lower end of the cable well body 1 and arranges the air outlet 2 at the upper end thereof, so that air flow is formed in the cable 6 well due to the height difference; the cable 6 is fixed to the cable 6 installation part by the cable installation bracket 7 to avoid the cable 6 being cluttered; the ventilation hole 17 is opened in the ventilation part of the cable installation bracket 7, which is located on one side of the cable 6, so that the efficient circulation of air in the cable well body 1 is realized, the heat accumulation generated by the operation of the cable 6 is reduced, and the aging and insulation performance degradation of the cable 6 caused by high temperature are alleviated; and by installing the fire damper 8 at the ventilation hole 17, the temperature and smoke value in the cable well body 1 can be timely detected, and the cable well body 1 can be closed by closing the fire damper 8 in time to form a fire isolation zone, thereby effectively blocking the spread of fire.

[0022] The fire damper 8 installed in the cable well body 1 is an automatic fire damper 8, which is made of high temperature resistant and corrosion resistant carbon material and galvanized sheet material, and has undergone strict fireproof tests; the valve has built-in high-precision temperature sensing elements and smoke detectors, which can monitor the environmental changes in the cable well 6 in real time. Once the temperature abnormally rises to the preset threshold, smoke and other signs of fire are detected, the fire damper 8 will automatically close immediately, forming a solid fire isolation zone, effectively blocking the path of fire spread.

[0023] An air inlet shaft 3 is arranged on the side or bottom of the cable well body 1, and the air inlet 4 of the air inlet shaft 3 adopts an adjustable shutter design to control the air intake and prevent rainwater, small animals, etc. from entering. At the same time, a high-efficiency filter is arranged at the air inlet 4 to prevent dust and impurities from entering the cable 6 well. An air outlet 2 is arranged at the top of the cable well body 1. By utilizing the effect of natural convection, the hot air that absorbs the heat of the cable 6 flows upward to the air outlet 2 to ensure that the hot air can be discharged smoothly. The air outlet 2 also adopts an adjustable shutter design and is equipped with a rain cover to prevent rainwater from flowing back. A dustproof net and an insect-proof net are arranged at the air outlet 2 to further ensure the cleanliness of the environment in the cable 6 well. A guide plate 5 is provided at the connection between the air inlet shaft 3 and the cable well body 1. The guide plate 5 accelerates the flow of air and improves the heat dissipation efficiency of the cable 6.

[0024] In addition, a guide plate 10 can be provided in the cable 6 well, and the guide plate 10 is located below the ventilation hole 17; the surface of the guide plate 10 is corrugated, which can increase the contact area, and can accelerate the flow of gas while the gas is naturally convective, reduce the time the gas stays in the well, and improve the heat dissipation efficiency of the cable 6. The guide plate 5 is designed to be below the ventilation hole 17 far away from the cable 6 to avoid interference or damage to the cable 6.

[0025] In some possible embodiments, see Figure 1 A fire extinguishing system is provided below the cable installation bracket 7, and the fire extinguishing system includes a fire extinguishing agent storage tank 12, a fire extinguishing agent release pipe 11, a pressure sensor and a control system. The pressure sensor is located on the inner side of the fire damper 8, and the pressure sensor is electrically connected to the control system. The control system is electrically connected to the valve on the fire extinguishing agent release pipe 11, and the valve receives the opening and closing signal of the control system and controls the release state of the fire extinguishing agent; the fire extinguishing agent storage tank 12 is located in the inner cavity or outer side of the cable well body 1; the fire extinguishing agent release pipe 11 is horizontally distributed in the inner cavity of the cable well body 1, and the upward projection of the fire extinguishing agent release pipe 11 is located on one side of the ventilation hole 17; the fire extinguishing agent release pipe 11 is provided with a plurality of release ports 13, and the outlet direction of the release port 13 is vertically downward or inclined downward.

[0026] A separate fire extinguishing system is arranged below the cable installation bracket 7, and the fire damper 8 installed in the cable well body 1 is electrically connected to the control system; when the fire damper 8 is closed, the fire damper 8 closing signal is transmitted to the control system, and at the same time, the pressure sensor senses that the air pressure inside the fire damper 8 becomes high, thereby transmitting the sensing signal to the control system; after receiving the signal, the control system controls the valve on the fire extinguishing agent release pipe 11 to open. The fire extinguishing agent in the fire extinguishing agent storage tank 12 is sprayed out from the release port 13 on the fire extinguishing agent release pipe 11, and there are multiple release ports 13 to ensure that the fire extinguishing agent can be evenly sprayed to every corner in the cable well body 1.

[0027] The valve on the fire extinguishing agent release pipeline 11 is a solenoid valve. The solenoid valve is electrically connected to the control system, so that the control system can control the opening and closing state of the fire extinguishing agent release pipeline 11.

[0028] In addition, a manual opening and closing valve is installed on the fire extinguishing agent release pipeline 11. In the event of accidental or unexpected contact, the manual opening and closing valve can further activate the protection mechanism to ensure the safety of personnel operation during maintenance, inspection or special circumstances.

[0029] The fire extinguishing agent in the fire extinguishing agent storage tank 12 can be perfluorohexanone (FK-5-1-12); perfluorohexanone is a chemical gas fire extinguishing agent. It is an odorless transparent liquid at normal temperature and pressure. It is mainly used as a clean gas fire extinguishing agent for absorbing heat, reducing temperature, protecting O2, and achieving fire fighting effects. Its volatile heat is only 1 / 25 of that of water, and its vapor pressure is 25 times that of water, which makes it very easy to volatilize and exist in a gaseous state.

[0030] The present invention integrates high-performance automatic fire isolation valves with temperature sensing elements, smoke detectors, pressure sensors, etc. to build a comprehensive, efficient fire warning and immediate response system. This system can quickly detect abnormal signals at the early stage of a fire, automatically close the fire damper 8, form a physical isolation zone, effectively curb the spread of fire, and greatly reduce the threat of fire to the safety of buildings and personnel. In addition, the fire extinguishing system can be quickly started after the fire damper 8 is closed, and the fire source can be quickly extinguished by accurately controlling the release of the fire extinguishing agent, further enhancing the reliability of fire prevention and control; it not only improves the intelligent level of fire prevention and control, but also wins precious time for fire rescue, and significantly improves the overall safety performance.

[0031] In some possible embodiments, see Figure 1 The cable installation bracket 7 includes a frame body, which includes a frame 14 and an inner beam. The frame 14 is attached to the side wall of the cable well body 1, and the frame 14 is fixedly matched with the cable well body 1; the inner beam is fixed to the frame 14, and the inner beam is used to divide the cable 6 installation part and the ventilation part, and the inner beam is used to support the limit clamping assembly and the fire damper 8.

[0032] The frame 14 of the frame is a rectangular frame, which is attached to the side wall of the cable well body 1 and fixed by bolts, and the frame 14 and the side wall of the cable well body 1 are sealed. A plurality of inner beams are installed inside the frame 14, and the inner beams include transverse beams and longitudinal beams, which are vertically connected to divide the area inside the frame 14 into a plurality of rectangular areas, and each area is divided into a cable 6 installation part and a ventilation part according to actual needs.

[0033] During installation, the transverse beam and the longitudinal beam are bolted or welded to the frame 14, and the transverse beam and the longitudinal beam are bolted or welded to each other. The transverse beam and the longitudinal beam can be angle steel or strip steel plate, and their length and width can be selected according to the actual needs of the cable well 6. The transverse beam and the longitudinal beam serve as a supporting structure to bear the weight of the fire damper 8 and the limit clamping assembly.

[0034] See also Figures 1 to 3 The cable 6 mounting portion includes a plurality of mounting plates 15, which are overlapped on the top of the inner beam. The corners of the mounting plates 15 have threaded portions, and bolts penetrate the threaded portions of the mounting plates 15 and are fixed to the inner beam. A longitudinal mounting hole is provided in the middle of the mounting plate 15, and the mounting hole is coaxial with the clearance space. The limit clamping assembly corresponds to the mounting plate 15 one by one, and the limit clamping assembly is located on the inner side of the mounting hole.

[0035] The mounting plate 15 covers the upper ends of the transverse beam and the longitudinal beam, and the size of the mounting plate 15 is consistent with the rectangular area of ​​the cable 6 mounting portion enclosed by the transverse beam and the longitudinal beam. The four corners of the mounting plate 15 have threaded portions, and bolts penetrate the threaded portions and cooperate with the threaded portions. The free ends of the bolts are fixedly connected to the inner beam. The mounting holes of the mounting plate 15 are for accommodating the passage of the cables 6. Each mounting plate 15 has a mounting hole, and each mounting hole can accommodate one or more cables 6. If the size allows, only one cable 6 can be accommodated in one mounting hole.

[0036] The position-limiting clamping assembly is mounted on the mounting plate 15 , and the action end thereof extends into the mounting hole to form a clearance space in the mounting hole.

[0037] When the number of rectangular areas is greater than the number of cables 6, a cover plate is installed at the rectangular area where no cables 6 are installed, or a fire damper 8 is installed. The cover plate is a plate body with a threaded portion at the corner, and the plate body is used to cover the rectangular area. When it is necessary to install additional cables 6 or replace cables 6, the cover plate is more convenient for subsequent disassembly and expansion.

[0038] Specifically, Figure 3 and Figure 4As shown, the limit clamping assembly includes a plurality of groups of clamping assemblies distributed at equal intervals, and the clamping assembly includes a sliding plate 18, an elastic member 21, an abutment plate 19 and a shock-absorbing pad 20; the sliding plate 18 is connected to the mounting plate 15 along the radial sliding direction of the mounting hole, and the sliding plate 18 is connected to the inner side of the radial direction of the mounting hole with an elastic member 21, and the elastic member 21 has radial freedom along the mounting hole; the end of the elastic member 21 is connected to the abutment plate 19, and the abutment plate 19 is an arc-shaped plate, and the shock-absorbing pad 20 is fixedly arranged on the side of the abutment plate 19 away from the elastic member 21; the plurality of groups of clamping assemblies located on the same mounting plate 15 cooperate to allow the plurality of abutment plates 19 to enclose a clearance space.

[0039] Multiple groups of equally spaced clamping assemblies are combined to form a limit clamping assembly. The structures of the multiple groups of clamping assemblies are consistent and all extend toward the center of the mounting hole. The radial direction of the mounting hole close to the center of the mounting hole is the inner side, and the direction away from the center of the mounting hole is the inner side. The sliding plate 18 is slidably mounted on the mounting plate 15 along the radial direction of the mounting hole. When the sliding plate 18 slides inward along the radial direction of the mounting hole, the elastic member 21, the abutting plate 19 and the shock absorbing pad 20 are all driven to slide inward to reduce the inner diameter of the clearance space; when the sliding plate 18 slides outward along the radial direction of the mounting hole, the elastic member 21, the abutting plate 19 and the shock absorbing pad 20 are all driven to slide outward to increase the inner diameter of the clearance space. The lower end surface of the mounting plate 15 has a slide rail, and the outer edge of the sliding plate 18 has a sliding block connected to the slide rail.

[0040] The inner side of the sliding plate 18 is connected to the elastic member 21, so that when the sliding plate 18 is stationary, the abutment plate 19 has a degree of freedom along the radial direction of the mounting hole, thereby achieving the fixation and fine adjustment of the cable 6 in the clearance space. The elastic member 21 is a spring, and a retractable limit sleeve can be installed on the inner side of the spring. The length direction of the limit sleeve is consistent with the radial direction of the mounting hole. The limit sleeve includes an inner rod and an outer sleeve. The inner rod is installed on the sliding plate 18, and the outer sleeve is installed on the abutment plate 19. The outer sleeve is set on the outer side of the inner rod and slides with the inner rod. When the spring is contracted or stretched under force, the outer sleeve moves along the inner rod to cooperate.

[0041] The abutment plate 19 is used to apply a squeezing force to the cable 6 in the clearance space. The shock-absorbing pad 20 installed on the inner side of the abutment plate 19 can increase the friction between the cable 6 and the abutment plate 19 to prevent the cable 6 from sliding downward under its own gravity. To ensure the stability of the cable 6 under high load or vibration environment, the design of the spring and the shock-absorbing pad 20 can effectively absorb external vibration, protect the cable 6 from damage, and also improve the safety of the cable 6 fixation.

[0042] Further, such as Figure 4As shown, the longitudinal cross-section of the sliding plate 18 is L-shaped, and the sliding plate 18 includes a transverse plate 22 and a vertical plate 23. The vertical plate 23 is located at the inner end of the transverse plate 22, and the vertical plate 23 is used to connect the elastic member 21; the outer end of the transverse plate 22 extends to the lower end surface of the mounting plate 15 and slides with the lower end surface of the mounting plate 15, and the lower end of the transverse plate 22 is connected with a driving assembly, and the driving assembly is used to drive the transverse plate 22 to move horizontally along the radial direction of the mounting hole; the driving assembly includes a driving motor 24, a driving threaded rod 25 and a slider, and the driving motor 24 is fixed to the mounting plate 15; the length direction of the driving threaded rod 25 is consistent with the radial direction of the mounting hole; the end of the driving threaded rod 25 extends to the bottom of the transverse plate 22, the slider is sleeved on the outer side of the driving threaded rod 25 and threadedly cooperates with the driving threaded rod 25, and the upper end of the slider is fixedly connected to the transverse plate 22.

[0043] The transverse plate 22 and the vertical plate 23 are vertically connected, the outer end of the transverse plate 22 extends to the lower end of the mounting plate 15, the inner end of the transverse plate 22 is connected to the vertical plate 23, and the vertical plate 23 is located in the mounting hole and extends upward to the upper end surface protruding from the mounting hole. The vertical plate 23 provides a mounting surface for the elastic member 21 and the inner rod / outer sleeve.

[0044] The side surface of the mounting plate 15 has a downward folding structure, which is used to install and fix the drive motor 24. The output end of the drive motor 24 is connected to a drive screw extending radially along the mounting hole, and the slider on the drive screw is connected to the lower end surface of the transverse plate 22. The drive motor 24 can rotate forward and reverse, and the drive motor 24 drives the transverse plate 22 to move inward or outward by rotating forward and reverse.

[0045] The driving component also includes a cable 6 sensing system and a scanner 16. The cable 6 sensing system is electrically connected to the scanner 16 and the driving motor 24. The scanner 16 is arranged on the mounting plate 15 and is located on one side of the mounting hole. The scanner 16 is used to identify the diameter of the cable 6. The cable 6 sensing system receives the signal transmission from the scanner 16 and controls the opening and closing of the driving motor 24.

[0046] Radio Frequency Identification (RFID) technology, also known as wireless radio frequency identification, is a communication technology, commonly known as electronic tags. It can identify specific targets and read and write related data through radio signals without the need to establish mechanical or optical contact between the identification system and the specific target.

[0047] The scanner 16 is an RFID scanner 16, and an RFID tag is set on the cable 6. The diameter of the cable 6 can be obtained by scanning the tag of the cable 6 through the scanner 16. The diameter of the cable 6 is obtained by the cable 6 sensing system, and the inner diameter of the clearance space is limited by controlling the opening and closing of the driving motor 24.

[0048] The identification code or diameter on the cable 6 is detected by non-contact scanning using wireless radio frequency, and this is used as an input signal. The input signal will be transmitted to the background cloud server. The built-in algorithm in the background cloud server can realize the calculation function of adjusting the extension and contraction degree of the transverse plate 22 according to the diameter of the cable 6, and this is transmitted to the drive motor 24 as an output signal to control the extension and contraction degree of the transverse plate 22, ensuring that the clamping component can accurately fix the cables 6 of different diameters; this function greatly reduces manual intervention and improves installation efficiency and accuracy.

[0049] In some possible embodiments, see Figures 5 and 6 , and also includes a cooling system, which includes a plurality of cooling coils 28, a longitudinal liquid supply pipe 26 and a longitudinal liquid return pipe 27, the longitudinal liquid supply pipe 26 and the longitudinal liquid return pipe 27 are arranged at intervals in the horizontal direction, and the longitudinal liquid supply pipe 26 and the longitudinal liquid return pipe 27 are both connected to a cold source; a plurality of groups of cooling coils 28 are distributed at intervals in the vertical direction, and the two ends of each group of cooling coils 28 are respectively connected to the longitudinal liquid supply pipe 26 and the longitudinal liquid return pipe 27; a plurality of nozzles 29 are provided on the cooling coils 28; the cooling coils 28 are located below the fire extinguishing agent release pipe 11.

[0050] The longitudinal liquid delivery pipe 26 and the longitudinal liquid return pipe 27 of the cooling system are arranged at intervals, and the longitudinal liquid delivery pipe 26 and the longitudinal liquid return pipe 27 are both connected to a cold source, which can be a reservoir and a water pump. The water source in the reservoir can be rainwater, recycled water, etc.

[0051] The cooling coil 28 is connected to the longitudinal liquid delivery pipe 26 and the longitudinal liquid return pipe 27. A plurality of cooling coils 28 are arranged at intervals in the longitudinal direction. The plurality of cooling coils 28 cool the cable 6 and the air in the cable 6 well in sections. The water source is located in a water storage tank below the ground, and the water outlet of the water storage tank is connected to the pump body. The water source and the pump body are not drawn in the figure. The longitudinal liquid delivery pipe 26 and the longitudinal liquid return pipe 27 penetrate the cover plate or the mounting plate on the cable mounting bracket 7.

[0052] A nozzle 29 is provided on the cooling coil 28, and the nozzle 29 is used to assist in fire extinguishing and improve the cooling effect. When the temperature of the cable well 6 is too high in summer, the cooling demand cannot be met only by ventilation and cooling coil 28 refrigeration. At this time, the nozzle 29 is opened to spray the low-temperature water in the cooling coil 28, which can further improve the cooling effect.

[0053] In some possible embodiments, see Figures 5 and 6 There are multiple cable installation brackets 7, and the multiple cable installation brackets 7 are arranged at intervals in the longitudinal direction. A fire extinguishing system and a cooling system are provided between two adjacent cable installation brackets 7. The cooling coil 28 located in the same area is located below the fire extinguishing agent release pipe 11.

[0054] When there are multiple cable installation brackets 7, the cable installation brackets 7 divide the space of the cable well body 1 into multiple sections in the longitudinal direction, and a fire extinguishing system and a cooling system are installed in each section. When the temperature of the cable 6 is too high, the fire extinguishing system and the cooling system in the section can be controlled separately to achieve segmented control.

[0055] The cable 6 installation parts and ventilation parts of two adjacent cable installation brackets 7 are staggered; there are two fire extinguishing systems between two adjacent cable installation brackets 7, and the release port 13 in the fire extinguishing system is located below the ventilation hole 17 of the cable installation bracket 7 above it.

[0056] The cable installation bracket 7, fire damper 8, fire extinguishing system, cooling system and ventilation system can all be independently disassembled and replaced, greatly reducing the complexity and difficulty of maintenance work. Operation and maintenance personnel can complete the replacement and maintenance of related components without entering the cable well 6, effectively reducing maintenance costs and time. At the same time, the integrated application of the intelligent identification system and the remote monitoring system enables operation and maintenance personnel to grasp the operating status of the cable well 6 in real time, discover and deal with potential problems in a timely manner, further improve the efficiency and reliability of operation and maintenance, reduce labor costs and time costs, and improve the overall operation and maintenance level.

[0057] The cable 6-well ventilation, heat dissipation and fire prevention integrated device provided by the present invention reduces energy consumption and carbon emissions by optimizing the ventilation and heat dissipation design; improves resource utilization efficiency through modular and adjustable design; and reduces labor costs and time costs through intelligent management. These features together constitute an important contribution of the present invention in promoting green buildings and sustainable development. At the same time, the device also improves the overall safety performance and operation and maintenance efficiency of the building, providing strong support for building a safe, green and efficient modern building environment.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Cable well ventilation, heat dissipation and fire prevention device, characterized in that: It includes a cable well body, an air inlet well and a cable installation bracket; the air inlet well is located on one side of the cable well body, an air inlet is provided at the upper end of the air inlet well, and the lower end of the air inlet well is connected with the bottom of the cable well body; an air outlet is provided at the top of the cable well body; the cable installation bracket is horizontally arranged in the inner cavity of the cable well body, the cable installation bracket includes a cable installation part and a ventilation part, the cable installation part has a plurality of limiting clamping components, the inner side of the limiting clamping components forms a circular clearance space, the clearance space allows the cable to pass through, and the limiting clamping component has radial freedom along the clearance space to limit the cable; the ventilation part has a plurality of longitudinal ventilation holes, and a fire damper is installed at the upper end of the ventilation hole; the fire damper is opened and closed to close the ventilation hole; a sensing device is provided below the ventilation hole, and the sensing device includes a temperature sensing element and a smoke detector.

2. The cable well ventilation, heat dissipation and fire prevention device according to claim 1, characterized in that: A fire extinguishing system is provided below the cable installation bracket, and the fire extinguishing system includes a fire extinguishing agent storage tank, a fire extinguishing agent release pipe, a pressure sensor and a control system, wherein the pressure sensor is located on the inner side of the fire damper, the pressure sensor is electrically connected to the control system, the control system is electrically connected to the valve on the fire extinguishing agent release pipe, the valve receives the opening and closing signal of the control system and controls the release state of the fire extinguishing agent; the fire extinguishing agent storage tank is located in the inner cavity or outer side of the cable well body; the fire extinguishing agent release pipe is laterally distributed in the inner cavity of the cable well body, and the upward projection of the fire extinguishing agent release pipe is located on one side of the ventilation hole; the fire extinguishing agent release pipe is provided with a plurality of release ports, and the outlet direction of the release port is vertically downward or inclined downward.

3. The cable well ventilation, heat dissipation and fire prevention device according to claim 1, characterized in that: The cable installation bracket includes a frame, and the frame includes a frame and an inner beam. The frame is attached to the side wall of the cable well body, and the frame is fixedly matched with the cable well body; the inner beam is fixed to the frame, and the inner beam is used to divide the cable installation part and the ventilation part, and the inner beam is used to support the limit clamping assembly and the fire damper.

4. The cable well ventilation, heat dissipation and fire prevention device according to claim 3, characterized in that: The cable installation part includes multiple installation plates, which are overlapped on the top of the inner beam. The corners of the installation plates have threaded portions, and bolts penetrate the threaded portions of the installation plates and are fixed to the inner beam. A longitudinal installation hole is opened in the middle of the installation plate, and the installation hole is coaxial with the clearance space. The limit clamping assembly corresponds to the installation plate one by one, and the limit clamping assembly is located on the inner side of the installation hole.

5. The cable well ventilation, heat dissipation and fire prevention device according to claim 4, characterized in that: The limit clamping assembly includes a plurality of groups of clamping assemblies distributed at equal intervals, and the clamping assembly includes a sliding plate, an elastic member, an abutment plate and a shock-absorbing pad; the sliding plate is connected to the mounting plate along the radial sliding direction of the mounting hole, and the sliding plate is connected to the inner side of the mounting hole in the radial direction, and the elastic member has radial freedom along the mounting hole; the end of the elastic member is connected to the abutment plate, and the abutment plate is an arc-shaped plate, and the shock-absorbing pad is fixed on the side of the abutment plate away from the elastic member; multiple groups of the clamping assemblies located on the same upper row of the mounting plate cooperate to make the multiple abutment plates enclose the clearance space.

6. The cable well ventilation, heat dissipation and fire prevention device according to claim 5, characterized in that: The longitudinal cross-section of the sliding plate is L-shaped, and the sliding plate includes a transverse plate and a vertical plate, the vertical plate is located at the inner end of the transverse plate, and the vertical plate is used to connect the elastic member; the outer end of the transverse plate extends to the lower end surface of the mounting plate and slidably cooperates with the lower end surface of the mounting plate, and the lower end of the transverse plate is connected to a driving assembly, and the driving assembly is used to drive the transverse plate to move horizontally along the radial direction of the mounting hole; the driving assembly includes a driving motor, a driving threaded rod and a slider, and the driving motor is fixed to the mounting plate; the length direction of the driving threaded rod is consistent with the radial direction of the mounting hole; the end of the driving threaded rod extends to the bottom of the transverse plate, the slider is sleeved on the outer side of the driving threaded rod and threadedly cooperates with the driving threaded rod, and the upper end of the slider is fixedly connected to the transverse plate.

7. The cable well ventilation, heat dissipation and fire prevention device according to claim 6, characterized in that: The driving component also includes a cable sensing system and a scanner, wherein the cable sensing system is electrically connected to the scanner and the driving motor; the scanner is arranged on the mounting plate and located on one side of the mounting hole, and the scanner is used to identify the diameter of the cable; the cable sensing system receives the signal transmission from the scanner and controls the opening and closing of the driving motor.

8. The cable well ventilation, heat dissipation and fire prevention device according to claim 2, characterized in that: It also includes a cooling system, which includes a plurality of cooling coils, a longitudinal liquid supply pipe and a longitudinal liquid return pipe, wherein the longitudinal liquid supply pipe and the longitudinal liquid return pipe are arranged at intervals in the transverse direction, and both the longitudinal liquid supply pipe and the longitudinal liquid return pipe are connected to a cold source; a plurality of groups of cooling coils are distributed at intervals in the longitudinal direction, and both ends of each group of cooling coils are respectively connected to the longitudinal liquid supply pipe and the longitudinal liquid return pipe; a plurality of nozzles are provided on the cooling coil; and the cooling coil is located below the fire extinguishing agent release pipe.

9. The cable well ventilation, heat dissipation and fire prevention device according to claim 8, characterized in that: There are multiple cable installation brackets, which are arranged at intervals in the longitudinal direction. The fire extinguishing system and the cooling system are provided between two adjacent cable installation brackets, and the cooling coils located in the same area are located below the fire extinguishing agent release pipe.

10. The cable well ventilation, heat dissipation and fire prevention device according to claim 9, characterized in that: The cable installation parts and the ventilation parts of two adjacent cable installation brackets are arranged alternately; there are two fire extinguishing systems between two adjacent cable installation brackets, and the release port in the fire extinguishing system is located below the ventilation hole of the cable installation bracket above it.

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