Box-type substation safety protection device

Abstract

The utility model relates to a safety protection device for a box-type substation. The box-type transformer substation solves the problem that a box-type transformer substation in the prior art is poor in use safety. The device comprises a protection box body, a control chamber and a power transformation equipment chamber are arranged in the protection box body, air exchange cooling mechanisms used for carrying out air cooling on the power transformation equipment chamber are arranged on the two sides of the control chamber, the power transformation equipment chamber is provided with a working environment detection assembly, and the working environment detection assembly is connected with a main control module arranged in the control chamber. An automatic smoke exhaust assembly is arranged at the upper end of the protection box body, an automatic fire extinguishing mechanism is arranged at the upper end of the protection box body in the circumferential direction, and the automatic smoke exhaust assembly and the automatic fire extinguishing mechanism are connected with the main control module. And the main control module automatically controls the air exchange cooling mechanism, the automatic smoke exhaust assembly and the automatic fire extinguishing mechanism according to the detection result of the working environment detection assembly. The safety protection device has the advantages of being good in practical safety and good in protection effect.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a safety protection device for a box-type transformer substation. Background Art

[0002] Box-type substation, also known as prefabricated substation or prefabricated substation, is a kind of factory-prefabricated indoor and outdoor compact distribution equipment that is arranged in a certain wiring scheme, including high-voltage switchgear, distribution transformer and low-voltage distribution device. It combines high-voltage power receiving, transformer step-down, low-voltage distribution and other functions organically and installs them in a fully enclosed and movable box. There are a large number of high-current equipment such as transformers and switch cabinets inside the box-type substation. They will generate a lot of heat if they are in operation for a long time. Various contactor contacts, circuit breaker contacts, cable connectors, etc. are prone to heat. Excessive temperature in the box-type substation can easily cause fire. Existing box-type substations usually have temperature sensors and smoke sensors for detection, but the temperature sensors and smoke sensors may be disturbed by the internal environment of the box-type substation and cause false alarms. Moreover, when the temperature sensors and smoke sensors send out high temperature or smoke alarms, a fire has often occurred inside the box-type substation, causing damage to the device. In addition, it is difficult for existing box-type substations to actively cool down according to actual conditions, and fire extinguishing cannot be carried out immediately after a fire occurs, which leads to poor safety.

[0003] In order to solve the deficiencies of the existing technology, people have conducted long-term exploration and proposed various solutions. For example, a Chinese patent document discloses a safety protection system for a box-type substation [CN202210424143.X], which includes an industrial computer and an intelligent acquisition module, the intelligent acquisition module includes a current sensor, a voltage sensor, a temperature sensor, a single-chip microcomputer and a power supply unit, the current sensor, the voltage sensor, the temperature sensor, and the power supply unit are all connected to the single-chip microcomputer, the serial port of the single-chip microcomputer is connected to the RS485 bus, the RS485 bus is connected to the RS485 / RS232 converter, the RS485 / RS232 converter is connected to the industrial computer, the industrial computer is connected to the wireless gateway, the wireless gateway is connected to the Intel Internet, and the Intel Internet is connected to the cloud platform and the user terminal.

[0004] The above solution has solved to a certain extent the problem in the prior art that the sensors in the box-type substation are easily interfered by electrical equipment and parts are easily damaged in the event of a fire. However, the solution still has many shortcomings. For example, it is difficult for the existing box-type substation to actively cool down according to actual conditions to reduce the risk of fire; and it is impossible to extinguish the fire immediately after a fire occurs, resulting in poor safety. Summary of the invention

[0005] The purpose of the utility model is to provide a box-type substation safety protection device in view of the above problems.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a box-type substation safety protection device, including a protection box body, a control chamber and a transformer equipment chamber are respectively arranged in the protection box body, air exchange and cooling mechanisms for air cooling the transformer equipment chamber are arranged on both sides of the control chamber, the transformer equipment chamber is provided with a working environment detection component, and the working environment detection component is connected to a main control module arranged in the control chamber, an automatic smoke exhaust component is arranged at the upper end of the protection box body, and an automatic fire extinguishing mechanism is arranged circumferentially at the upper end of the protection box body, the automatic smoke exhaust component and the automatic fire extinguishing mechanism are respectively connected to the main control module, and the main control module automatically controls the air exchange and cooling mechanism, the automatic smoke exhaust component and the automatic fire extinguishing mechanism according to the detection result of the working environment detection component.

[0007] In the above-mentioned box-type substation safety protection device, an insulating layer is provided on the circumferential surface of the protection box body, and a supporting base is provided at the bottom of the protection box body, and the supporting base is a waterproof insulating base.

[0008] In the above-mentioned box-type substation safety protection device, the working environment detection component includes a smoke sensor, a temperature sensor and a voltage detection module connected to the substation equipment chamber, and the smoke sensor, temperature sensor and voltage detection module are respectively connected to the main control module.

[0009] In the above-mentioned box-type substation safety protection device, the air exchange and cooling mechanism includes a cooling air supply fan arranged in the control chamber, a fireproof partition panel is provided between the control chamber and the substation equipment chamber, and an air supply opening and closing structure is provided inside the wall of the fireproof partition panel, an air inlet opening and closing structure is provided on the side of the control chamber away from the fireproof partition panel, and the cooling air supply fan is fixed on the fireproof partition panel.

[0010] In the above-mentioned box-type substation safety protection device, the air supply opening and closing structure includes a driving cylinder arranged symmetrically in the upper and lower parts, and an air supply port corresponding to the cooling air supply fan is provided in the middle of the fireproof partition plate, and a fireproof plate capable of closing the air supply port is connected to the end of the driving cylinder.

[0011] In the above-mentioned box-type substation safety protection device, the air inlet opening and closing structure includes an air inlet arranged on one side of the control chamber, a plug-in connection plate for closing the air inlet is provided in the control chamber, and the plug-in connection plate is driven by the opening and closing cylinders respectively, and an exhaust outlet corresponding to the air supply outlet is provided on the side of the substation equipment chamber away from the control chamber.

[0012] In the above-mentioned box-type substation safety protection device, the automatic fire extinguishing mechanism includes a high-voltage chamber arranged at the upper end of the protection box body, and the inner wall of the high-voltage chamber is connected to a connecting cylinder for loading dry powder, and one end of the connecting cylinder extends to the substation equipment chamber and a rotating seat is provided at the end, and a dry powder spray head is connected to the rotating seat.

[0013] In the above-mentioned box-type substation safety protection device, an opening and closing pipeline is provided between the connecting cylinder and the dry powder spray head, and an electromagnetic pressure valve is provided on the opening and closing pipeline.

[0014] In the above-mentioned box-type substation safety protection device, the automatic smoke exhaust assembly includes a rainproof ceiling arranged on the upper end surface of the protection box body, and a lifting top seat is provided at the end of the rainproof ceiling. The lifting top seat is connected to the output end of the lifting cylinder through the smoke exhaust cylinder body, and the lifting cylinder is arranged in the loading cavity of the lifting top seat.

[0015] In the above-mentioned box-type substation safety protection device, a plurality of smoke exhaust holes are arranged around the smoke exhaust cylinder, and the lower end of the smoke exhaust cylinder extends into the substation equipment chamber and a rainproof cover is arranged on the upper end, and a shielding part covering the upper end surface of the high-voltage compartment is arranged around the rainproof ceiling.

[0016] Compared with the existing technology, the advantages of the utility model are: practicality and safety, it can actively start the air cooling treatment according to the actual ambient temperature of the substation equipment chamber, and it can be closed in rainy and snowy weather to reduce the impact of the external environment on the substation equipment. Secondly, when a fire is detected, it can actively extinguish the fire through the automatic fire extinguishing mechanism, and turn on the automatic smoke exhaust component to quickly exhaust the smoke, making the use of the box-type substation safer and the protection effect better. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a cross-sectional view of the protective box in the utility model;

[0019] Figure 3 It is a structural schematic diagram of the automatic fire extinguishing mechanism in the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the automatic smoke exhaust component in the utility model;

[0021] Figure 5 It is a local structural connection block diagram in the utility model;

[0022] In the figure: protective box 1, control chamber 11, transformer chamber 12, insulating layer 13, supporting base 14, air exchange and cooling mechanism 2, cooling fan 21, fireproof partition plate 22, air supply opening and closing structure 23, driving cylinder 231, air supply port 232, fireproof plate 233, air inlet opening and closing structure 24, air inlet 241, plug-in connecting plate 242, opening and closing cylinder 243, exhaust port 25, working environment detection component 3, smoke sensor 31, temperature sensor 32, voltage detection module 33, main control module 4, automatic smoke exhaust component 5, rainproof ceiling 51, lifting top seat 52, smoke exhaust cylinder 53, lifting cylinder 54, loading chamber 55, smoke exhaust hole 56, rainproof cover plate 57, shielding part 58, automatic fire extinguishing mechanism 6, high-pressure warehouse 61, connecting cylinder 62, rotating seat 63, dry powder nozzle 64, opening and closing pipeline 65, electromagnetic pressure valve 66. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] like Figure 1-5 As shown, a box-type substation safety protection device includes a protection box body 1, in which a control chamber 11 and a transformer equipment chamber 12 are respectively provided, air exchange and cooling mechanisms 2 for air cooling the transformer equipment chamber 12 are provided on both sides of the control chamber 11, the transformer equipment chamber 12 is provided with a working environment detection component 3, and the working environment detection component 3 is connected to a main control module 4 arranged in the control chamber 11, an automatic smoke exhaust component 5 is provided at the upper end of the protection box body 1, and an automatic fire extinguishing mechanism 6 is circumferentially provided at the upper end of the protection box body 1, the automatic smoke exhaust component 5 and the automatic fire extinguishing mechanism 6 are respectively connected to the main control module 4, and the main control module 4 automatically controls the air exchange and cooling mechanism 2, the automatic smoke exhaust component 5 and the automatic fire extinguishing mechanism 6 according to the detection result of the working environment detection component 3.

[0025] The protective box body 1 is provided with an insulating layer 13 on its circumferential surface, and a supporting base 14 is provided at the bottom of the protective box body 1 , and the supporting base 14 is a waterproof insulating base.

[0026] The insulating layer 13 is used to prevent the protective box 1 from being conductive when the transformer equipment leaks electricity, thereby preventing external electric shock. The support base 14 is provided to prevent rainwater from invading the bottom.

[0027] Obviously, the working environment detection component 3 includes a smoke sensor 31, a temperature sensor 32 and a voltage detection module 33 connected to the substation chamber 12, and the smoke sensor 31, the temperature sensor 32 and the voltage detection module 33 are respectively connected to the main control module 4.

[0028] The temperature sensor 32 is used to detect the temperature. When the temperature exceeds the set normal value, the air exchange and cooling mechanism 2 is turned on. When the temperature exceeds the warning value and the smoke sensor 31 detects smoke, the automatic fire extinguishing mechanism 6 and the automatic smoke exhaust component 5 are turned on, and the air exchange and cooling mechanism 2 is turned off.

[0029] The voltage detection module 33 is used to detect whether the working voltage is abnormal. If an abnormality is detected, the main control module 4 is used to transform the power equipment.

[0030] Furthermore, the air exchange and cooling mechanism 2 includes a cooling air supply fan 21 arranged in the control chamber 11, a fireproof partition 22 is provided between the control chamber 11 and the transformer equipment chamber 12, and an air supply opening and closing structure 23 is provided inside the wall of the fireproof partition 22, an air inlet opening and closing structure 24 is provided on the side of the control chamber 11 away from the fireproof partition 22, and the cooling air supply fan 21 is fixed on the fireproof partition 22.

[0031] The fireproof partition plate 22 is used to prevent the fire from spreading to the control chamber 11 .

[0032] Specifically, the air supply opening and closing structure 23 includes a driving cylinder 231 symmetrically arranged in an upper and lower manner, and an air supply port 232 corresponding to the cooling blower 21 is provided in the middle of the fireproof partition plate 22, and a fireproof plate 233 capable of closing the air supply port 232 is connected to the end of the driving cylinder 231.

[0033] When a fire occurs, the air supply port 232 is closed by the driving cylinder 231 to form a fireproof isolation. When air cooling is required, the air supply port 232 is opened to supply air for cooling.

[0034] Furthermore, the air inlet opening and closing structure 24 includes an air inlet 241 arranged on one side of the control chamber 11, and a plug-in connection plate 242 for closing the air inlet 241 is provided in the control chamber 11, and the plug-in connection plate 242 is driven by an opening and closing cylinder 243 respectively, and an exhaust port 25 corresponding to the air supply port 232 is provided on the side of the substation equipment chamber 12 away from the control chamber 11.

[0035] The air inlet opening and closing structure 24 is opened and closed synchronously with the cooling air supply fan 21. Closing the cooling air supply fan 21 can seal one side of the control chamber 11 to prevent rainwater from invading.

[0036] More specifically, the automatic fire extinguishing mechanism 6 includes a high-pressure chamber 61 arranged at the upper end of the protective box 1, and the inner wall of the high-pressure chamber 61 is connected to a connecting cylinder 62 for loading dry powder, and one end of the connecting cylinder 62 extends to the transformer equipment chamber 12 and a rotating seat 63 is provided at the end, and a dry powder spray head 64 is connected to the rotating seat 63.

[0037] In detail, an opening and closing pipe 65 is provided between the connecting cylinder 62 and the dry powder spray head 64 , and an electromagnetic pressure valve 66 is provided on the opening and closing pipe 65 .

[0038] When a fire occurs, the active module 4 opens the electromagnetic pressure valve 66 to release the pressure, and the dry powder in the connecting cylinder 62 is sprayed out to extinguish the fire.

[0039] Preferably, the automatic smoke exhaust assembly 5 includes a rainproof ceiling 51 arranged on the upper end surface of the protective box 1, and a lifting top seat 52 is provided at the end of the rainproof ceiling 51. The lifting top seat 52 is connected to the output end of the lifting cylinder 54 through the smoke exhaust cylinder 53, and the lifting cylinder 54 is arranged in the loading chamber 55 of the lifting top seat 52.

[0040] In addition, the smoke exhaust cylinder 53 is circumferentially provided with a plurality of smoke exhaust holes 56 , and the lower end of the smoke exhaust cylinder 53 extends into the transformer chamber 12 and the upper end is provided with a rainproof cover 57 , and the rainproof ceiling 51 is circumferentially provided with a shielding portion 58 covering the upper end surface of the high-voltage chamber 61 .

[0041] The automatic smoke exhaust component 5 is used to exhaust smoke during a fire.

[0042] To sum up, the principle of this embodiment is: by setting an air exchange and cooling mechanism 2 on the protective box 1, when the temperature sensor 32 detects that the operating temperature of the substation equipment chamber 12 exceeds the set normal value, the air exchange and cooling mechanism 2 is turned on; when it exceeds the warning value and the smoke sensor 31 detects smoke, the automatic fire extinguishing mechanism 6 and the automatic smoke exhaust component 5 are turned on to perform fire extinguishing and smoke exhaust processing; secondly, the driving cylinder 231 is used to close the air supply port 232 to form a fire isolation to prevent the spread of fire.

[0043] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0044] Although this article uses more protective box 1, control chamber 11, substation chamber 12, insulation layer 13, support base 14, air exchange and cooling mechanism 2, cooling fan 21, fireproof partition 22, air supply opening and closing structure 23, drive cylinder 231, air outlet 232, fireproof plate 233, air inlet opening and closing structure 24, air inlet 241, plug-in connection plate 242, opening and closing cylinder 243, exhaust port 25, working environment detection component 3, smoke sensor 3 1. Temperature sensor 32, voltage detection module 33, main control module 4, automatic smoke exhaust assembly 5, rainproof ceiling 51, lifting top seat 52, smoke exhaust cylinder 53, lifting cylinder 54, loading chamber 55, smoke exhaust hole 56, rainproof cover 57, shielding part 58, automatic fire extinguishing mechanism 6, high-pressure chamber 61, connecting cylinder 62, rotating seat 63, dry powder spray head 64, opening and closing pipeline 65, electromagnetic pressure valve 66 and other terms, but the possibility of using other terms is not excluded. The use of these terms is only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A box-type substation safety protection device, comprising a protection box (1), wherein the protection box (1) is provided with a control chamber (11) and a substation equipment chamber (12), characterized in that: The control chamber (11) is provided with air exchange and cooling mechanisms (2) for air cooling the transformer chamber (12), the transformer chamber (12) is provided with a working environment detection component (3), and the working environment detection component (3) is connected to a main control module (4) arranged in the control chamber (11), the upper end of the protection box (1) is provided with an automatic smoke exhaust component (5), and the upper end of the protection box (1) is provided with an automatic fire extinguishing mechanism (6), the automatic smoke exhaust component (5) and the automatic fire extinguishing mechanism (6) are respectively connected to the main control module (4), and the main control module (4) automatically controls the air exchange and cooling mechanism (2), the automatic smoke exhaust component (5), and the automatic fire extinguishing mechanism (6) according to the detection results of the working environment detection component (3).

2. A box-type substation safety protection device according to claim 1, characterized in that: The circumferential surface of the protection box (1) is provided with an insulating layer (13), and the bottom of the protection box (1) is provided with a supporting base (14), and the supporting base (14) is a waterproof insulating base.

3. A box-type substation safety protection device according to claim 1, characterized in that: The working environment detection component (3) comprises a smoke sensor (31), a temperature sensor (32) and a voltage detection module (33) connected to the power conversion equipment chamber (12); the smoke sensor (31), the temperature sensor (32) and the voltage detection module (33) are respectively connected to the main control module (4).

4. A box-type substation safety protection device according to claim 1, characterized in that: The air exchange and cooling mechanism (2) comprises a cooling air supply fan (21) arranged in the control chamber (11); a fireproof partition plate (22) is arranged between the control chamber (11) and the transformer chamber (12); an air supply opening and closing structure (23) is arranged inside the wall of the fireproof partition plate (22); an air inlet opening and closing structure (24) is arranged on the side of the control chamber (11) away from the fireproof partition plate (22); and the cooling air supply fan (21) is fixed on the fireproof partition plate (22).

5. A box-type substation safety protection device according to claim 4, characterized in that: The air supply opening and closing structure (23) comprises a driving cylinder (231) symmetrically arranged in an upper and lower manner, and an air supply port (232) corresponding to the cooling air supply fan (21) is provided in the middle of the fireproof partition plate (22), and a fireproof plate (233) capable of closing the air supply port (232) is connected to the end of the driving cylinder (231).

6. A box-type substation safety protection device according to claim 5, characterized in that: The air inlet opening and closing structure (24) comprises an air inlet (241) arranged on one side of the control chamber (11); a plug-in connection plate (242) for closing the air inlet (241) is arranged in the control chamber (11); and the plug-in connection plate (242) is driven by an opening and closing cylinder (243) respectively; and an air outlet (25) corresponding to the air supply port (232) is arranged on the side of the transformer chamber (12) away from the control chamber (11).

7. A box-type substation safety protection device according to claim 1, characterized in that: The automatic fire extinguishing mechanism (6) comprises a high-pressure chamber (61) arranged at the upper end of the protective box (1); the inner wall of the high-pressure chamber (61) is connected to a connecting cylinder (62) for loading dry powder, and one end of the connecting cylinder (62) extends to the transformer chamber (12) and a rotating seat (63) is arranged at the end; the rotating seat (63) is connected to a dry powder spray head (64).

8. A box-type substation safety protection device according to claim 7, characterized in that: An opening and closing pipeline (65) is provided between the connecting cylinder (62) and the dry powder spray head (64), and an electromagnetic pressure valve (66) is provided on the opening and closing pipeline (65).

9. A box-type substation safety protection device according to claim 7, characterized in that: The automatic smoke exhaust assembly (5) comprises a rainproof ceiling (51) arranged on the upper end surface of the protective box (1), and a lifting top seat (52) is provided at the end of the rainproof ceiling (51). The lifting top seat (52) is connected to the output end of the lifting cylinder (54) through a smoke exhaust cylinder (53), and the lifting cylinder (54) is arranged in a loading chamber (55) of the lifting top seat (52).

10. A box-type substation safety protection device according to claim 9, characterized in that: The smoke exhaust cylinder (53) is circumferentially provided with a plurality of smoke exhaust holes (56), and the lower end of the smoke exhaust cylinder (53) extends into the transformer equipment chamber (12) and the upper end is provided with a rainproof cover plate (57), and the rainproof ceiling (51) is circumferentially provided with a shielding portion (58) covering the upper end surface of the high-voltage compartment (61).

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