Intelligent control system for electric power prefabricated cabin switching station

Abstract

The intelligent control system for the electric power prefabricated cabin switching station is applied to the technical field of switching stations, a ventilation system is arranged in a prefabricated cabin box body, a cool environment is provided for the interior of the prefabricated cabin box body through cooperation of an air conditioner module, an air inlet module and an air outlet module, and the intelligent control system for the electric power prefabricated cabin switching station is achieved. Linkage of the air conditioner module, the axial flow fan and the electric louver is achieved, intervention of external personnel is not needed, the refrigeration effect, energy conservation and consumption reduction of the air conditioner module are effectively improved, and when the air conditioner module is in an open state, the sand and dust filtering cotton piece is flattened through the two assembling meshes, so that the originally-breathable sand and dust filtering cotton piece becomes more exquisite, and the air conditioner module is more attractive in appearance. When the air outlet module is in a closed state, the axial flow fan is temporarily started to discharge part of air in the switching station, and the discharged airflow is detected by the smoke sensor between the axial flow fan and the fireproof valve. And the fireproof detection capability of the switching station ventilation system is further effectively improved.

Description

Technical Field

[0001] The present invention relates to a prefabricated cabin switch station, and in particular to an intelligent control system for a power prefabricated cabin switch station applied in the technical field of switch stations. Background Art

[0002] A switch station is a power facility that selectively connects or disconnects the power system and its users' electrical equipment through switch devices. Its function is to distribute high and medium voltage electric energy. Outdoor box-type switch stations are usually called high-voltage switch cabinets, also called prefabricated substations or prefabricated substations. The main function of a switch station is to receive and distribute electric energy, usually without involving voltage conversion. It distributes the power from the power grid to multiple substations or users, and the substations then step down the voltage to supply industrial and domestic electricity.

[0003] The specification of Chinese invention patent CN202123013770.4 discloses "A three-dimensional 35kV switch station equipped with energy storage". On the premise of meeting the safety distances of various equipment in relevant regulations and specifications, the switch station is arranged in three dimensions by using integrated prefabricated cabin equipment, thereby minimizing the footprint of the switch station as much as possible to achieve the purpose of saving the comprehensive investment cost of the project. Large-scale switch stations have high management requirements, so the management of switch stations gradually adopts system automatic management methods.

[0004] At present, most of the traditional power prefabricated cabin switch stations are in the form of outdoor switch box shells. The fans, air conditioners, ordinary fire extinguishers and other auxiliary equipment configured need to be independently or manually controlled, which greatly increases the personnel costs of daily operation and maintenance, has high energy consumption and poses safety hazards. Since the space inside the prefabricated cabin switch station is large, in order to be able to fully detect the fire situation inside the prefabricated cabin switch station, a large number of detection sensors need to be installed inside the prefabricated cabin switch station, which will cause a surge in the construction cost of the prefabricated cabin switch station. Therefore, most of the traditional sensor installation positions are at the air outlet position, and the fire situation is judged by smoke detection of the exhausted air. However, when the prefabricated cabin switch station is equipped with an air conditioning system, the inlet and outlet air of the prefabricated cabin switch station will be closed to prevent the leakage of cooling air inside the prefabricated cabin switch station. However, this method will cause inconvenience in fire detection and affect the ventilation and fire detection capabilities of the switch station. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that when an air-conditioning system is installed inside the prefabricated cabin switch station, the inlet and outlet air of the prefabricated cabin switch station will be closed to prevent the leakage of cooling air inside the prefabricated cabin switch station. However, this method will cause inconvenience in fire detection and affect the ventilation and fire detection capabilities of the switch station.

[0006] In order to solve the above problems, the present invention provides an intelligent control system for a power prefabricated cabin switch station, comprising a prefabricated cabin box body, the interior of the prefabricated cabin box body includes a ventilation system, a video monitoring system, an access control system and an alarm system;

[0007] The ventilation system is composed of an air conditioning module, an air intake module and an air outlet module. The air conditioning modules are installed at both ends of the interior of the prefabricated cabin body, and the air conditioning modules are connected to the temperature sensor data inside the prefabricated cabin body. The air intake module and the air outlet module are fixedly mounted on the bottom and top of the prefabricated cabin body respectively. The air outlet modules are composed of a channel frame, electric blinds, a protective net, a sand and dust filter cotton sheet, an axial flow fan and a fire damper. The channel frame is fixed with electric blinds, a protective net, a sand and dust filter cotton sheet, a protective net, an axial flow fan and a fire damper from the outside to the inside, and a smoke sensor is fixedly installed between the axial flow fan and the fire damper;

[0008] An auxiliary air duct is fixedly connected between the bottoms of the two protective nets, the outlet end of the auxiliary air duct is located at the bottom of the outlet end of the channel frame, and a one-way shielding curtain is fixedly connected to the top of the outlet end of the auxiliary air duct, and a closed plug plate is movably connected inside the auxiliary air duct. Assembly meshes are fixedly bonded to the front and back surfaces of the dust filter cotton sheet, the left and right ends of the two assembly meshes are hinged by a connecting shaft, and an opening spring button is fixedly connected between the outer frames of the two assembly meshes, the top end of one of the two assembly meshes is hinged to the channel frame, and the bottom end of the other assembly mesh is hinged to the closed plug plate.

[0009] In the above-mentioned intelligent control system for a prefabricated power cabin switch station, when closing the electric shutters, two assembled meshes are used to flatten the dust filter cotton sheets. The flattened dust filter cotton sheets block the airflow and guide the airflow into the auxiliary air duct. When the air outlet module is in a closed state, the axial flow fan is briefly started to partially discharge the air inside the switch station, thereby meeting the detection requirements of the smoke sensor and effectively improving the fire detection capability of the switch station ventilation system.

[0010] As a further improvement of the present application, the air inlet module and the air outlet module have the same structure, and the air inlet module is not equipped with an axial flow fan compared to the air outlet module. The air inlet module and the air outlet module with the same structure are easy to assemble and process, thereby effectively reducing costs.

[0011] As a further improvement of the present application, the video surveillance system is composed of surveillance cameras fixedly installed on the top of the inside and outside of the prefabricated cabin box. The surveillance cameras are used to conduct all-round video surveillance of the inside and outside of the prefabricated cabin box, effectively improving the management efficiency of the inside and outside of the prefabricated cabin box.

[0012] As a further improvement of the present application, the access control system includes a security door fixedly installed on the outside of the prefabricated cabin body and an access control console installed outside the security door. The input end of the access control console is connected to the surveillance camera. The opening of the security door is controlled by the access control console, which can effectively control the entry of irrelevant personnel or non-professionals, thereby effectively preventing the internal equipment of the switch station from being accidentally touched or malfunctioned, thereby avoiding economic losses and personal injuries caused by malfunction of the equipment.

[0013] As another improvement of the present application, the alarm system includes an alarm fixedly installed inside and outside the prefabricated cabin box. The input end of the alarm is connected to the output ends of the smoke sensor, the surveillance camera and the temperature sensor, and the output end of the alarm is connected to the access control console. The alarm is used to alarm for emergencies occurring inside and outside the prefabricated cabin box. When there is a fire hazard, human damage or animal intrusion, the alarm is activated and feedback is promptly sent to the control center to effectively prevent damage to the equipment.

[0014] As another improvement supplement of the present application, the bottom of the auxiliary air duct is rotatably connected to a rotating shaft, and a driving gear is fixedly connected to the outside of the rotating shaft. The driving gear is meshed with the bottom of the closed plug plate, and the two ends of the rotating shaft are connected to the two ends of the rotating shaft of the electric blinds through a transmission belt. Through the transmission of the rotating shaft and the electric blinds, the lifting and lowering of the closed plug plate and the opening and closing operations of the electric blinds are corresponding, thereby effectively improving the management efficiency of the auxiliary air duct.

[0015] As another improvement supplement to the present application, the top of the closed plug plate is inclined toward one end of the auxiliary air duct outlet, and an elastic wind block plate is fixedly connected to the middle of the inclined surface of the closed plug plate, and the elastic wind block plate vertically corresponds to the dust filter cotton piece. The elastic wind block plate is utilized to block the air outlet space vacated by the lowering of the closed plug plate, thereby effectively preventing reverse air backflow inside the auxiliary air duct.

[0016] As another improvement supplement to the present application, a closing diaphragm is fixedly connected to one end of the elastic wind blocking plate facing the auxiliary air duct outlet. The closing diaphragm is made of wear-resistant rubber material. When the closing plug plate rises to close the auxiliary air duct, the inclined bottom end of the closing plug plate squeezes the closing diaphragm, thereby effectively improving the sealing effect of the inclined bottom end of the closing plug plate.

[0017] As another improvement of the present application, a drain outlet is provided at the bottom of the outlet end of the auxiliary air duct, and the bottom end of the closed diaphragm extends to the top of the drain outlet. By raising the closed diaphragm, water is poured into the drain outlet, thereby effectively improving the water cleaning efficiency.

[0018] As another improvement supplement of the present application, the cross-section of the drain outlet is set to be trapezoidal, and a sponge plug is inserted into the inside of the drain outlet, and the top of the sponge plug is fixedly connected to a covering mesh, and the top of the covering mesh is fixedly connected to the bottom end of the closed diaphragm. The sponge plug is used to close the drain outlet, thereby effectively preventing external wind and sand from entering the auxiliary air duct from the drain outlet in the opposite direction. In the process of the closed diaphragm being lifted, the closed diaphragm exerts an upward pulling force on the covering mesh, thereby squeezing the sponge plug, squeezing out the water in the sponge plug, and further improving the blocking effect of the sponge plug on the drain outlet.

[0019] In summary, the present invention provides a cool environment for the prefabricated cabin by arranging a ventilation system in the prefabricated cabin box, utilizing the cooperation of the air-conditioning module, the air inlet module and the air outlet module, and performs environmental monitoring through a temperature sensor to realize the linkage of the air-conditioning module, the axial flow fan and the electric blinds without the intervention of external personnel, thereby effectively improving the refrigeration effect and energy saving and consumption reduction of the air-conditioning module, and when the air-conditioning module is turned on, two assembled meshes are used to flatten the dust filter cotton sheet, making the originally breathable dust filter cotton sheet more refined, thereby blocking the airflow and guiding the airflow into the auxiliary air duct, so that when the air outlet module is in a closed state, the axial flow fan is briefly started to discharge part of the air inside the switch station, and the discharged airflow is detected by the smoke sensor between the axial flow fan and the fire damper, thereby effectively improving the fire detection capability of the ventilation system of the switch station. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a plan view of the switch station of the first embodiment of the present application;

[0021] Figure 2 This is a front plan view of a switch station according to the first embodiment of the present application;

[0022] Figure 3 This is a rear plan view of a switch station according to the first embodiment of the present application;

[0023] Figure 4 This is a left-side plan view of a switch station according to the first embodiment of the present application;

[0024] Figure 5 This is a left-side plan view of a switch station according to the first embodiment of the present application;

[0025] Figure 6 This is the main circuit wiring diagram of the first embodiment of the present application;

[0026] Figure 7 This is a circuit wiring diagram of a lighting system according to a first embodiment of the present application;

[0027] Figure 8 This is a circuit wiring diagram of a power socket in the first embodiment of the present application;

[0028] Fig. 9 This is a circuit wiring diagram of the air conditioning module of the first embodiment of the present application;

[0029] Fig.10 This is a system wiring diagram of an air conditioning module in the first embodiment of the present application;

[0030] Fig.11 This is a wiring diagram of the linkage system of the air conditioning module, axial flow fan and fire damper in the first embodiment of the present application;

[0031] Fig.12 This is a circuit control wiring diagram of the electric blinds in the first embodiment of the present application;

[0032] Fig.13 This is a system wiring diagram of the alarm system of the first embodiment of the present application;

[0033] Fig.14 This is a three-dimensional structural diagram of the air outlet module of the first embodiment of the present application;

[0034] Fig.15 This is a three-dimensional structural diagram of the air inlet module of the first embodiment of the present application;

[0035] Fig.16 This is a three-dimensional structural diagram of a dust filter cotton sheet and an assembly mesh sheet in the first embodiment of the present application;

[0036] Fig.17 This is a planar cross-sectional view of the air outlet module of the first embodiment of the present application;

[0037] Fig.18 This is a plan cross-sectional view of the auxiliary air duct of the first embodiment of the present application;

[0038] Fig.19 This is a demonstration diagram of the descending movement of the closing plug plate in the first embodiment of the present application;

[0039] Fig. 20 This is a demonstration diagram of the lifting and lowering changes of the sponge plug in the second embodiment of the present application.

[0040] Description of the numbers in the figure:

[0041] 1. Prefabricated cabin body; 2. Air conditioning module; 3. Air inlet module; 4. Air outlet module; 401. Channel frame; 402. Electric blinds; 403. Protective net; 404. Sand and dust filter cotton pads; 405. Axial fan; 406. Fire damper; 407. Smoke sensor; 5. Auxiliary air duct; 501. One-way shielding curtain; 502. Closing plug plate; 503. Assembling mesh; 504. Opening button; 505. Rotating shaft; 506. Driving gear; 507. Elastic wind resistance plate; 508. Closing diaphragm; 509. Drain; 510. Sponge plug; 511. Covering mesh; 6. Monitoring camera; 7. Security door; 8. Access control console; 9. Alarm; 10. Temperature sensor. DETAILED DESCRIPTION

[0042] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0043] The first implementation method:

[0044] Figures 1 to 12 It is shown that an intelligent control system for a power prefabricated cabin switch station includes a prefabricated cabin box 1, the inner net height of the prefabricated cabin box 1 is 3000mm, the base of the prefabricated cabin box 1 is made of 300mm high channel steel, the length and width of the prefabricated cabin box 1 are 10000mm and 3600mm, the main preparation materials of the prefabricated cabin box 1 are 2mm corrugated plate, 50mm rock wool and 1.2mm galvanized plate, the outside of the prefabricated cabin box 1 is welded with a grounding pile, and the inside of the prefabricated cabin box 1 is divided into a high-voltage chamber and a low-voltage chamber. In order to better control the internal circuit layout of the prefabricated cabin box 1, as shown in FIG. Figure 6 The layout of the main circuit wiring is shown in the figure, and all power supplies and control lines between devices inside the prefabricated cabin box 1 are laid in concealed manner. The cables used are flame-retardant cables with sheaths. The prefabricated cabin box 1 also has a lighting system and a power socket system for the equipment. The circuit wiring of the lighting system is as follows Figure 7 As shown, the circuit diagram of the power socket system is as follows Figure 8 As shown, the interior of the prefabricated cabin body 1 includes a ventilation system, which is composed of an air conditioning module 2, an air inlet module 3 and an air outlet module 4. The air conditioning module 2 is installed at both ends of the interior of the prefabricated cabin body 1. The air conditioning module 2 is an integrated industrial air conditioner with a signal switch output, such as Figures 9 to 11 As shown, the air conditioning module 2 has complete circuit wiring, system wiring and linkage wiring, which effectively improves the automatic control effect of the air conditioning module 2. Two groups of air conditioning modules 2 are installed inside the prefabricated cabin box 1, and the air conditioning system wiring of the two groups of air conditioning modules 2 is the same. Fig.10The figure shows the wiring of the air conditioning system of one group of air conditioning modules 2. The air conditioning module 2 is connected to the temperature sensor 10 inside the prefabricated cabin body 1. The air inlet module 3 and the air outlet module 4 are fixedly mounted on the bottom and top of the prefabricated cabin body 1, respectively. The air outlet module 4 is composed of a channel frame 401, an electric shutter 402, a protective net 403, a sand and dust filter cotton sheet 404, an axial flow fan 405 and a fire damper 406. The electric shutter 402 used must meet the requirements of preventing wind and sand and preventing heavy rain and snow. In order to improve the opening and closing control ability of the electric shutter 402, an auxiliary Fig.12 The circuit control wiring mode effectively improves the automatic control effect of the electric blinds 402. The protective net 403 is a metal stainless steel wire mesh. The mesh diameter of the protective net 403 inside the air outlet module 4 is less than 10 mm. The channel frame 401 fixes the electric blinds 402, the protective net 403, the sand and dust filter cotton sheet 404, the protective net 403, the axial flow fan 405 and the fire damper 406 in sequence from the outside to the inside. A smoke sensor 407 is fixedly installed between the axial flow fan 405 and the fire damper 406. The air inlet module 3 has the same structure as the air outlet module 4. Compared with the air outlet module 4, the air inlet module 3 is not equipped with an axial flow fan 405. At the same time, the protective net 403 inside the air inlet module 3 is also a metal stainless steel wire mesh. In order to further improve the protection of the protective net 403 on the dust filter cotton sheet 404 inside the air inlet module 3, the mesh diameter of the protective net 403 here is less than 3.5 mm. The air inlet module 3 and the air outlet module 4 with the same structure are easy to assemble and process, thereby effectively reducing the cost. In order to better adapt to the linkage between the air conditioning module 2, the axial flow fan 405 and the fire damper 406 of the technical solution, as shown in FIG. Fig.11 The linkage system wiring of the air conditioning module 2, the axial flow fan 405 and the fire damper 406 shown in the figure effectively improves the automatic control effect of the air conditioning module 2, the axial flow fan 405 and the fire damper 406;

[0045] When the ventilation system is used in the switch station, the air-conditioning module 2 is regulated according to the internal ambient temperature data of the prefabricated cabin body 1 detected by the temperature sensor 10. When the air-conditioning module 2 is in the on state, the air inlet module 3 and the air outlet module 4 will switch to the off state. The specific off state is the closing of the electric shutter 402 and the closing of the axial flow fan 405, so that the interior of the prefabricated cabin body 1 is in a closed state, thereby effectively improving the cooling effect of the air-conditioning module 2 and saving energy and reducing consumption. On the contrary, when the air-conditioning module 2 is in the off state, the air inlet module 3 and the air outlet module 4 are turned on, and the axial flow fan 405 inside the air outlet module 4 drives the air to be discharged from the prefabricated cabin body 1, and the outside air enters the interior of the prefabricated cabin body 1 from the air inlet module 3. The air-conditioning module 2, the air inlet module 3 and the air outlet module 4 do not need to be independently or manually intervened and controlled, which greatly reduces the personnel cost of daily operation and maintenance.

[0046] Figures 1 to 6 and Fig.13As shown, the interior of the prefabricated cabin body 1 also includes a video surveillance system, an access control system and an alarm system. The video surveillance system is composed of a surveillance camera 6 fixedly installed on the top of the inside and outside of the prefabricated cabin body 1. The surveillance camera 6 performs all-round video surveillance of the inside and outside of the prefabricated cabin body 1, effectively improving the management efficiency of the inside and outside of the prefabricated cabin body 1. The access control system includes a safety door 7 fixedly installed on the outside of the prefabricated cabin body 1 and an access control console 8 installed outside the safety door 7. Each door of the safety door 7 is equipped with a lightning mark, and the threshold is also provided with a rat-proof plate. The protection level of the safety door 7 after closing is IP54. The input end of the access control console 8 is connected to the surveillance camera 6. The access control console 8 is used to monitor the inside and outside of the prefabricated cabin body 1. The station 8 controls the opening of the safety door 7, which can effectively control the entry of irrelevant personnel or non-professionals, thereby effectively preventing the internal equipment of the switch station from being accidentally touched or misoperated, avoiding economic losses and personal injuries caused by misoperation of the equipment. The alarm system includes an alarm 9 fixedly installed inside and outside the prefabricated cabin box 1. The input end of the alarm 9 is connected to the output end of the smoke sensor 407, the monitoring camera 6 and the temperature sensor 10, and the output end of the alarm 9 is connected to the access control console 8. The alarm is used to alarm the emergency situations inside and outside the prefabricated cabin box 1. When there is a fire hazard, human damage and animal intrusion, the alarm 9 is activated. The specific system wiring method of the alarm system is as follows Fig.11 As shown, the alarm system can simultaneously link the video surveillance system and the access control system, so as to provide timely feedback to the control center and effectively control the damage to the equipment;

[0047] The video surveillance system mainly conducts video surveillance through the surveillance camera 6 inside and outside the prefabricated cabin box 1, and conducts all-round video surveillance of the inside and outside of the prefabricated cabin box 1, mainly monitoring whether there are unknown persons and unknown objects inside and outside the prefabricated cabin box 1, as well as the impact of animals on the switch station, effectively improving the management efficiency inside and outside the prefabricated cabin box 1. The access control system is the control of the safety door 7. The staff can open the safety door 7 through the access control console 8, thereby effectively controlling the entry of irrelevant personnel or non-professionals, and preventing economic losses and personal injuries caused by equipment misoperation due to accidental contact and misoperation. At the same time, the surveillance camera 6 in the video surveillance system can also identify the personnel operating the access control console 8, thereby further improving the control effect of the access control system. The alarm system mainly alarms for fires in the switch station, analyzes the detection conditions of the smoke sensor 407, the surveillance camera 6 and the temperature sensor 10, and thus obtains the fire situation, automatically triggers the alarm function, and promptly feeds back to the control center, effectively controlling the damage to the equipment.

[0048] Figures 14 to 17As shown, an auxiliary air duct 5 is fixedly connected between the bottoms of the two protective nets 403, the outlet end of the auxiliary air duct 5 is located at the bottom of the outlet end of the channel frame 401, and a one-way shielding curtain 501 is fixedly connected to the top of the outlet end of the auxiliary air duct 5, and a closed plug plate 502 is movably connected inside the auxiliary air duct 5, and the front and back surfaces of the dust filter cotton sheet 404 are fixedly bonded with assembly mesh sheets 503, the left and right ends of the two assembly mesh sheets 503 are hinged by a connecting shaft 15, and a support button 504 is fixedly connected between the outer frames of the two assembly mesh sheets 503, the top end of one of the two assembly mesh sheets 503 is hinged to the channel frame 401, and the bottom end of the other assembly mesh sheet 503 is hinged to the closed plug plate 502;

[0049] When the air conditioning module 2 is used for cooling in the prefabricated cabin box 1, the air inlet module 3 and the air outlet module 4 are switched to the closed state, that is, the electric shutters 402 and the axial flow fan 405 are closed. At this time, the closed plug plate 502 inside the auxiliary air duct 5 descends, so that the auxiliary air duct 5 is connected again. During the descent of the closed plug plate 502, the assembled mesh 503 is pulled, and the distance between the two assembled meshes 503 is shortened, thereby flattening the dust filter cotton sheet 404, and the originally loose and breathable dust filter cotton sheet 404 becomes more compact, that is, the control The dust filter 404 is no longer easy to pass through. When it is necessary to detect a fire inside the prefabricated cabin body 1, the axial flow fan 405 is started briefly at a fixed time, so that part of the gas inside the prefabricated cabin body 1 enters the channel frame 401, and the smoke sensor 407 detects the gas. Subsequently, the gas is blocked and guided by the dust filter 404 and finally discharged from the auxiliary air duct 5, so that smoke detection can be carried out when the air outlet module 4 is closed, thereby effectively improving the fire detection capability of the ventilation system of the switch station.

[0050] Figure 14 to Figure 15 and Figure 18 to Figure 19 As shown, the bottom of the auxiliary air duct 5 is rotatably connected with a rotating shaft 505, and the outside of the rotating shaft 505 is fixedly connected with a driving gear 506, and the driving gear 506 is meshed with the bottom of the closed plug plate 502, and the two ends of the rotating shaft 505 are connected with the two ends of the rotating shaft of the electric blind 402 through a transmission belt. Through the transmission of the rotating shaft 505 and the electric blind 402, the lifting and lowering of the closed plug plate 502 corresponds to the opening and closing operation of the electric blind 402, thereby effectively improving the management efficiency of the auxiliary air duct 5;

[0051] When the electric blinds 402 switch from the open turntable to the closed state, the rotation of the bottom layer of blinds of the electric blinds 402 synchronously drives the rotating shaft 505 to move through the transmission belt, and then the rotating shaft 505 engages with the bottom of the closed plug plate 502 through the driving gear 506, thereby realizing the automatic lifting and lowering movement of the closed plug plate 502, that is, the lifting and lowering of the closed plug plate 502 corresponds to the opening and closing operation of the electric blinds 402, thereby effectively improving the management efficiency of the auxiliary air duct 5.

[0052] The second implementation method:

[0053] Compared with the first embodiment, a closing diaphragm 508 is mainly added. The specific newly added structure is as follows, and the remaining structures are consistent with the first embodiment.

[0054] Figures 16 to 19 As shown, the top of the closed plug plate 502 is inclined at one end facing the outlet of the auxiliary air duct 5, and an elastic wind blocking plate 507 is fixedly connected to the middle of the inclined surface of the closed plug plate 502, and the elastic wind blocking plate 507 corresponds vertically to the dust filter cotton sheet 404. The elastic wind blocking plate 507 is used to block the air outlet space vacated by the lowering of the closed plug plate 502, effectively reducing the reverse air backflow inside the auxiliary air duct 5. The end of the elastic wind blocking plate 507 facing the outlet of the auxiliary air duct 5 is fixedly connected with a closed diaphragm 508, and the closed diaphragm 508 is made of wear-resistant rubber material. When the closed plug plate 502 rises to close the auxiliary air duct 5, the bottom end of the inclined surface of the closed plug plate 502 squeezes the closed diaphragm 508, effectively improving the sealing effect of the bottom end of the inclined surface of the closed plug plate 502.

[0055] After the closed plug plate 502 moves downward, the elastic wind blocking plate 507 on the inclined surface of the closed plug plate 502 remains upright due to its own elastic force. The elastic wind blocking plate 507 covers the space vacated by the closed plug plate 502 to reduce it. Only when reverse air reflux occurs inside the auxiliary air duct 5 and the axial flow fan 405 drives the air to flow, the air will squeeze the elastic wind blocking plate 507 to allow the air to be discharged from the auxiliary air duct 5. Subsequently, when the closed plug plate 502 resumes its upward movement, the closed plug plate 502 closes the auxiliary air duct 5 again, and the bottom end of the inclined surface of the closed plug plate 502 squeezes the closed diaphragm 508, which is between the closed plug plate 502 and the inner wall of the auxiliary air duct 5. The elasticity of the closed diaphragm 508 effectively improves the sealing effect of the bottom end of the inclined surface of the closed plug plate 502.

[0056] Figures 18 to 20As shown, a drain port 509 is provided at the bottom of the outlet end of the auxiliary air duct 5, and the bottom end of the closed diaphragm 508 extends to the top of the drain port 509. By lifting the closed diaphragm 508, water is poured into the drain port 509, thereby effectively improving the water cleaning efficiency. The cross-section of the drain port 509 is arranged in a trapezoidal shape, and a sponge plug 510 is inserted into the inside of the drain port 509. The top end of the sponge plug 510 is fixedly connected with a coating mesh 511, and the top end of the coating mesh 511 is fixedly connected to the bottom end of the closed diaphragm 508. The sponge plug 510 is used to close the drain port 509, thereby effectively preventing external wind and sand from reversely entering the auxiliary air duct 5 from the drain port 509. In the process of the closed diaphragm 508 being lifted, the closed diaphragm 508 applies an upward pulling force to the coating mesh 511, thereby squeezing the sponge plug 510, squeezing out the water in the sponge plug 510, and further improving the blocking effect of the sponge plug 510 on the drain port 509.

[0057] When the electric shutter 402 is closed, the assembly mesh 503 is pulled during the descent of the closing plug plate 502, so that the distance between the two assembly meshes 503 is shortened and the dust filter cotton sheet 404 is flattened. The water accumulated inside the dust filter cotton sheet 404 is squeezed out, and the squeezed water directly falls into the auxiliary air duct 5, is guided to the drain port 509 through the closed diaphragm 508, and finally the water is discharged from the drain port 509. When the dust filter cotton sheet 404 is subsequently restored to a fluffy state, it can get rid of the trouble of rainwater inside the dust filter cotton sheet 404, effectively improving the dust filter cotton sheet 404 to adapt to the influence of rainy weather, that is, in rainy weather, the closing operation of the electric shutter 402 is performed regularly. By doing so, the dust filter cotton sheet 404 can be dewatered, and the drain outlet 509 is blocked by the sponge plug 510. Rainwater can seep out through the sponge plug 510, while outside air cannot pass through the wet sponge plug 510, thereby effectively preventing outside air from entering the auxiliary air duct 5 through the drain outlet 509. When the electric shutter 402 is in the open state and the closing plug plate 502 is in the rising state, the closing plug plate 502 uses the closed diaphragm 508 to lift and tighten the coated mesh 511 on the top of the sponge plug 510, so that the sponge plug 510 can be more deeply inserted into the drain outlet 509, thereby squeezing out the residual water in the sponge plug 510 and further closing the drain outlet 509.

[0058] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. An intelligent control system for a power prefabricated cabin switch station, characterized in that: It comprises a prefabricated cabin box (1), wherein the interior of the prefabricated cabin box (1) comprises a ventilation system, a video monitoring system, an access control system and an alarm system; The ventilation system is composed of an air conditioning module (2), an air intake module (3) and an air outlet module (4); the air conditioning module (2) is installed at both ends of the interior of the prefabricated cabin body (1), and the air conditioning module (2) is in data communication with a temperature sensor (10) fixedly installed inside the prefabricated cabin body (1); the air intake module (3) and the air outlet module (4) are respectively fixedly mounted at the bottom and the top of the prefabricated cabin body (1); the air outlet module (4) is composed of a channel frame (401), an electric blind, and a plurality of channels. (402), a protective net (403), a sand and dust filter cotton sheet (404), an axial flow fan (405) and a fire damper (406), wherein the channel frame (401) sequentially fixes the electric blinds (402), the protective net (403), the sand and dust filter cotton sheet (404), the protective net (403), the axial flow fan (405) and the fire damper (406) from the outside to the inside, and a smoke sensor (407) is fixedly installed between the axial flow fan (405) and the fire damper (406); An auxiliary air duct (5) is fixedly connected between the bottoms of the two protective nets (403), the outlet end of the auxiliary air duct (5) is located at the bottom of the outlet end of the channel frame (401), and a one-way shielding curtain (501) is fixedly connected to the top of the outlet end of the auxiliary air duct (5), the interior of the auxiliary air duct (5) is movably connected to a closed plug plate (502), the front and rear surfaces of the dust filter cotton sheet (404) are fixedly bonded with an assembly mesh (503), the left and right ends of the two assembly meshes (503) are hinged through a connecting shaft (15), and an opening spring button (504) is fixedly connected between the outer frames of the two assembly meshes (503), the top end of one of the two assembly meshes (503) is hinged to the channel frame (401), and the bottom end of the other assembly mesh (503) is hinged to the closed plug plate (502).

2. The intelligent control system for a power prefabricated cabin switch station according to claim 1 is characterized in that: The air inlet module (3) and the air outlet module (4) have the same structure, and compared with the air outlet module (4), the air inlet module (3) is not equipped with an axial flow fan (405).

3. The intelligent control system for a power prefabricated cabin switch station according to claim 1 is characterized in that: The video monitoring system is composed of monitoring cameras (6) fixedly installed on the top of the inside and outside of the prefabricated cabin body (1).

4. The intelligent control system for a power prefabricated cabin switch station according to claim 3 is characterized in that: The access control system comprises a safety door (7) fixedly mounted on the outside of the prefabricated cabin body (1) and an access control operating console (8) mounted outside the safety door (7), wherein an input end of the access control operating console (8) is connected to a monitoring camera (6).

5. The intelligent control system for a power prefabricated cabin switch station according to claim 4 is characterized in that: The alarm system comprises an alarm (9) fixedly mounted inside and outside the prefabricated cabin body (1), wherein the input end of the alarm (9) is connected to the output ends of the smoke sensor (407), the monitoring camera (6) and the temperature sensor (10), and the output end of the alarm (9) is connected to the access control console (8).

6. The intelligent control system for a power prefabricated cabin switch station according to claim 1 is characterized in that: The bottom of the auxiliary air duct (5) is rotatably connected to a rotating shaft (505), and the outside of the rotating shaft (505) is fixedly connected to a driving gear (506), and the driving gear (506) is meshed with the bottom of the closed plug plate (502), and the two ends of the rotating shaft (505) are connected to the two ends of the rotating shaft of the electric blind (402) through a transmission belt.

7. The intelligent control system for a power prefabricated cabin switch station according to claim 1 is characterized in that: The top of the closed plug plate (502) is arranged in an inclined surface at one end facing the outlet of the auxiliary air duct (5), and an elastic wind blocking plate (507) is fixedly connected to the middle of the inclined surface of the closed plug plate (502), and the elastic wind blocking plate (507) vertically corresponds to the dust filter cotton sheet (404).

8. The intelligent control system for a power prefabricated cabin switch station according to claim 7 is characterized in that: One end of the elastic wind-blocking plate (507) facing the outlet of the auxiliary air duct (5) is fixedly connected with a closed diaphragm (508) (508), and the closed diaphragm (508) is made of wear-resistant rubber material.

9. The intelligent control system for a power prefabricated cabin switch station according to claim 8 is characterized in that: A drainage port (509) is provided at the bottom of the outlet end of the auxiliary air duct (5), and the bottom end of the closed diaphragm (508) extends to the top of the drainage port (509).

10. The intelligent control system for a power prefabricated cabin switch station according to claim 9, characterized in that: The cross section of the drain port (509) is arranged in a trapezoidal shape, and a sponge plug (510) is inserted into the interior of the drain port (509), the top end of the sponge plug (510) is fixedly connected to a covering mesh (511), and the top end of the covering mesh (511) is fixedly connected to the bottom end of the closed diaphragm (508).

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