Ventilation system of civil air defense underground engineering power generation room

Abstract

The utility model discloses a ventilation system of a civil air defense underground engineering power generation room in the technical field of civil air defense ventilation, which comprises an air inlet room, an air exhaust room, an oil storage room and an anti-poison channel which are arranged at four opposite angles of the power generation room, the air inlet room and the air exhaust and smoke exhaust room are arranged diagonally, and the oil storage room and the anti-poison channel are arranged diagonally. The diesel generator is located in the middle of the power generation chamber, the air inlet chamber is communicated with the power generation chamber through an air inlet adjusting mechanism, the oil storage chamber is connected with the air and smoke exhaust chamber through an air exhaust adjusting mechanism, and a smoke exhaust port of the diesel generator is connected with the air and smoke exhaust chamber through a smoke exhaust mechanism. The air inlet chamber is communicated with the outside, external cold air is fed into the power generation chamber through the air inlet adjusting mechanism, hot air in the oil storage chamber, hot air in the power generation chamber and heat generated by the diesel generator are exhausted to the air and smoke exhaust chamber through the air exhaust adjusting mechanism, and therefore the hot air, the hot air and the heat are exhausted to the outside by adjusting the air inlet amount, the air exhaust amount and the indoor negative pressure value. Therefore, the required negative pressure value is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the ventilation system of the underground engineering power generation room of civil air defence, which belongs to the technical field of civil air defence ventilation. BACKGROUND

[0002] The civil air defence underground power generation room is provided with a diesel generator set for power supply of the underground engineering. If the negative pressure in the power generation room is high, the air flow of the air station anti-toxic channel will be too large, which will cause the positive pressure value of the main engineering to decrease, thereby greatly influencing the overpressure of the personnel shelter unit engineering main body, and the main body of the engineering cannot maintain a moderate and stable positive pressure. Since the power generation room is a heavy toxic area, if the positive pressure is maintained in the power generation room, the air exchange of the air station anti-toxic channel will be insufficient, or the air exchange cannot be performed, and even the toxic air in the power generation room will flow back into the clean area of the personnel shelter unit main body. However, in the prior art, due to the improper selection of the fan and the connection position of the air exhaust pipe of the oil storage room, the positive pressure or high negative pressure is maintained in the power generation room, which will further affect the anti-toxic function of the personnel shelter unit main body. SUMMARY

[0003] The utility model aims to provide a ventilation system of the underground engineering power generation room of civil air defence, which can adjust the air intake and exhaust and the indoor negative pressure value, so as to reach the required negative pressure value.

[0004] To achieve the above-mentioned purpose, the utility model provides a ventilation system of the underground engineering power generation room of civil air defence, which comprises an air intake room, an air exhaust room, an oil storage room and an anti-toxic channel arranged at four corners of the power generation room. The air intake room and the air exhaust and smoke exhaust room are arranged at opposite corners, and the oil storage room and the anti-toxic channel are arranged at opposite corners. The diesel generator is arranged in the middle of the power generation room. The air intake room is connected with the power generation room through an air intake adjusting mechanism. The oil storage room is connected with the air exhaust and smoke exhaust room through an air exhaust adjusting mechanism. The smoke exhaust port of the diesel generator is connected with the air exhaust and smoke exhaust room through a smoke exhaust mechanism. The heat dissipation pipe of the diesel generator is connected with the air exhaust and smoke exhaust room through the air exhaust adjusting mechanism.

[0005] Compared with the prior art, the air intake room is connected with the outside, the cold air from the outside is sent into the power generation room through the air intake adjusting mechanism, the hot air in the oil storage room, the hot air in the power generation room and the heat generated by the diesel generator are exhausted to the air exhaust and smoke exhaust room through the air exhaust adjusting mechanism, so as to be exhausted to the outside, and the air intake and exhaust and the indoor negative pressure value are adjusted, so as to reach the required negative pressure value.

[0006] As a further improvement of the utility model, the air intake adjusting mechanism comprises an air intake pipe. The air intake port of the air intake pipe extends into the air intake room. The air outlet port of the air intake pipe is arranged in the power generation room. The air intake pipe is connected with an air intake fan and an air intake adjusting valve in the power generation room. The air intake adjusting valve is arranged between the air intake fan and the air outlet port of the air intake pipe. The air intake room is connected with an air intake vertical shaft through an air intake airtight door.

[0007] Thus, the cold air from outside enters the air inlet room through the air inlet shaft when the air inlet door is opened, and the air inlet fan sends the cold air in the air inlet room into the power generation room after being started.

[0008] As a further improvement of the present application, the air exhaust and smoke exhaust room comprises an air exhaust room and a smoke exhaust room, the air exhaust room is communicated with the air exhaust shaft through an air exhaust door, and the smoke exhaust room is communicated with the air exhaust shaft through a smoke exhaust door.

[0009] Thus, the hot air and smoke gas in the air exhaust and smoke exhaust room are discharged to the outside through the air exhaust shaft.

[0010] As a further improvement of the present application, the air exhaust regulating mechanism comprises an air exhaust branch pipe, the air inlet of the air exhaust branch pipe is located in the oil storage room, the air outlet of the air exhaust branch pipe is communicated with the air exhaust main pipe, the air inlet of the air exhaust main pipe is located in the power generation room, the air outlet of the air exhaust main pipe is located in the air exhaust room, the air exhaust main pipe is further communicated with the heat dissipation pipe of the diesel generator, the air exhaust main pipe is further connected with an air exhaust fan, the air exhaust fan is located between the air outlet of the air exhaust branch pipe and the air outlet of the air exhaust main pipe, the air exhaust main pipe is further connected with an air exhaust regulating valve, and the air exhaust regulating valve is arranged between the air outlet of the air exhaust branch pipe and the air exhaust fan.

[0011] Thus, the hot air in the oil storage room is sucked into the air exhaust main pipe through the air exhaust branch pipe and the air exhaust fan, and then is discharged through the air exhaust shaft after entering the air exhaust room.

[0012] As a further improvement of the present application, the smoke exhaust mechanism comprises a smoke exhaust pipe, the smoke inlet of the smoke exhaust pipe is connected with the smoke outlet of the diesel generator, and the smoke outlet of the smoke exhaust pipe extends into the smoke exhaust room through a wall sleeve.

[0013] Thus, the hot smoke gas generated by the diesel generator enters the smoke exhaust pipe from the smoke outlet, and is finally sent into the smoke exhaust room and then is sent into the air exhaust shaft.

[0014] As a further improvement of the present application, a pressure measuring box is installed on the outer wall of the power generation room and the main body cleaning area, a pressure measuring gauge is arranged in the pressure measuring box, the pressure measuring gauge is connected with a pressure measuring pipe, a pressure measuring ball valve is arranged on the pressure measuring pipe, and the end of the pressure measuring pipe extends out of the pressure measuring box and penetrates into the power generation room.

[0015] Thus, the pressure difference change between the engineering main body and the power generation room can be monitored in real time, and the pressure difference change is used as a basis for adjusting the negative pressure in the power generation room and ensuring the ventilation frequency of the anti-poisoning passage. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The figure is a structural schematic diagram of the present application.

[0017] Wherein, 1 air inlet shaft, 2 air inlet airtight door, 3 air inlet room, 4 air inlet pipe, 5 air inlet fan, 6 integral energy regulating valve, 7 power generation room, 8 anti-toxic passage, 9 oil storage room, 10 diesel generator, 11 exhaust pipe, 12 exhaust room, 13 pressure gauge, 14 pressure ball valve, 15 pressure box, 16 exhaust branch pipe, 17 exhaust main pipe, 18 exhaust regulating valve, 19 exhaust fan, 20 exhaust room, 21 exhaust shaft, 22 pressure measuring pipe. DETAILED DESCRIPTION

[0018] The utility model is further explained in connection with the drawings as follows:

[0019] As Figure 1 shown in a kind of civil air defence underground works power generation room's ventilation system, including being arranged in the four diagonals of power generation room 7, exhaust room 20, oil storage room 9 and anti-toxic passage 8, air inlet room 3 and exhaust smoke room 12 are diagonally arranged, oil storage room 9 and anti-toxic passage 8 are diagonally arranged, diesel generator 10 is in the middle part of power generation room 7, air inlet room 3 is communicated with power generation room 7 by air inlet regulating mechanism, oil storage room 9 is connected with exhaust smoke room 12 by exhaust regulating mechanism, the smoke outlet of diesel generator 10 is connected with exhaust smoke room 12 by exhaust mechanism, the radiator pipe of diesel generator 10 is connected with exhaust smoke room 12 by exhaust regulating mechanism.

[0020] Air inlet regulating mechanism includes air inlet pipe 4, the air inlet of air inlet pipe 4 extends into air inlet room 3, the air outlet of air inlet pipe 4 is in power generation room 7, part of air inlet pipe 4 in power generation room 7 is connected with air inlet fan 5 and air inlet regulating valve 6, air inlet regulating valve 6 is between air inlet fan 5 and the air outlet of air inlet pipe 4, air inlet room 3 is communicated with air inlet shaft 1 by air inlet airtight door 2.Exhaust smoke room 12 includes exhaust room 20 and exhaust smoke room 12, exhaust room 20 is communicated with exhaust shaft 21 by exhaust airtight door, exhaust smoke room 12 is communicated with exhaust shaft 21 by exhaust airtight door.

[0021] Exhaust regulating mechanism includes exhaust branch pipe 16, the air inlet of exhaust branch pipe 16 is in oil storage room 9, the air outlet of exhaust branch pipe 16 is communicated with exhaust main pipe 17, the air inlet of exhaust main pipe 17 is in power generation room 7, the air outlet of exhaust main pipe 17 is in exhaust room 20, exhaust main pipe 17 is also communicated with the radiator pipe of diesel generator 10, the part of exhaust main pipe 17 on power generation room 7 is also connected with exhaust fan 19, exhaust fan 19 is between the air outlet of exhaust branch pipe 16 and the air outlet of exhaust main pipe 17, exhaust main pipe 17 is also connected with exhaust regulating valve 18, exhaust regulating valve 18 is arranged between the air outlet of exhaust branch pipe 16 and exhaust fan 19.Exhaust mechanism includes exhaust pipe 11, the smoke inlet of exhaust pipe 11 is connected with the smoke outlet of diesel generator 10, the smoke outlet of exhaust pipe 11 extends into exhaust smoke room 12 by wall bushing.

[0022] A pressure measuring box 15 is installed on the outer wall of the power generation room 7 and the main clean area. A pressure gauge 13 is installed inside the pressure measuring box 15. The pressure gauge 13 is connected to the pressure measuring tube 22. A pressure measuring ball valve 14 is installed on the pressure measuring tube 22. The end of the pressure measuring tube 22 extends out of the pressure measuring box 15 and enters the power generation room 7.

[0023] In this invention, a pressure measuring box 15 is installed on the wall between the power generation room 7 and the clean area, and the pressure gauge 13 is installed inside the pressure measuring box 15. This facilitates operation and testing, and ensures the safety and reliability of the pressure measuring device.

[0024] like Figure 1 As shown, there are three points A, B, and C on the main exhaust pipe 17. Point A is near the exhaust regulating valve 18, which is near the exhaust fan 19, and the exhaust fan 19 is near the outer wall of the exhaust room 20. Since point A is where the negative pressure value of the exhaust fan 19 is the highest, and point B is where the cooling pipe of the diesel generator 10 is connected, its cooling exhaust volume accounts for more than 75% of the total air volume of the exhaust fan 19. Therefore, section AB is in a high negative pressure area, called the high negative pressure section. Point C is the air inlet of the main exhaust pipe 17, so the negative pressure value in the main exhaust pipe 17 between points B and C will be greatly reduced. The section between points B and C is called the low negative pressure section. With the exhaust regulating valve 18 fully open, placing the exhaust branch pipe 16 of the oil storage room 9 connected to the main exhaust pipe 17 between points A and B, i.e., the high negative pressure section, provides a wider air volume adjustment range and more reliable exhaust effect, making it more reasonable.

[0025] When the air inlet sealed door 2 is opened, the cold air from the outside enters the air inlet chamber 3 through the air inlet shaft 1. After the air inlet fan 5 is started, the cold air in the air inlet chamber 3 is sent into the power generation chamber 7, and the air intake volume is adjusted by the air intake regulating valve 6.

[0026] The exhaust and smoke extraction room 12 is connected to the outside through the exhaust shaft 21, and the hot air and smoke entering the exhaust and smoke extraction room 12 are discharged to the outside through the exhaust shaft 21.

[0027] This invention adds an inlet regulating valve 6 and an exhaust regulating valve 18 to adjust the airflow, ensuring that the inlet and exhaust airflow do not exceed the rated airflow and controlling the negative pressure inside the power generation chamber 7. A differential pressure measuring device is added between the clean area of ​​the main structure and the power generation chamber 7 to monitor the pressure difference changes between the main structure and the power generation chamber 7 in real time, using this as a basis for adjusting the negative pressure inside the mobile power station and ensuring the air exchange rate of the anti-toxic passage 8. The exhaust branch pipe 16 of the oil storage room 9 is connected to the main exhaust pipe 17 in the high negative pressure section between the exhaust fan 19 and the diesel engine cooling duct, providing a wider airflow adjustment range and more reliable exhaust effect. Ultimately, this maintains the required negative pressure value inside the power generation chamber 7, avoiding affecting the chemical protection function of the personnel shelter unit.

[0028] The utility model discloses not limited to the above embodiment, on the basis of the technical scheme of the present disclosure, the technical personnel in the art can make some replacement and deformation to some technical features in it according to the disclosed technical content without creative labor, and these replacement and deformation are all within the protection scope of the utility model.

Claims

1. A ventilation system for a power generation room of a civil defense underground facility, characterized by: The diesel generator is located in the middle of the power generation chamber, the air inlet room and the air exhaust and smoke exhaust room are diagonally arranged, the oil storage room and the anti-toxic passage are diagonally arranged, the air inlet room is communicated with the power generation chamber through an air inlet adjusting mechanism, the oil storage room is connected with the air exhaust and smoke exhaust room through an air exhaust adjusting mechanism, the smoke exhaust port of the diesel generator is connected with the air exhaust and smoke exhaust room through a smoke exhaust mechanism, and the heat dissipation pipe of the diesel generator is connected with the air exhaust and smoke exhaust room through the air exhaust adjusting mechanism.

2. The ventilation system of the civil defense underground engineering power generation room according to claim 1, characterized in that: The air inlet adjusting mechanism comprises an air inlet pipe, the air inlet of the air inlet pipe extends into the air inlet room, the air outlet of the air inlet pipe is located in the power generation chamber, and the air inlet pipe is connected with an air inlet fan and an air inlet adjusting valve in the part of the power generation chamber, the air inlet adjusting valve is located between the air inlet fan and the air outlet of the air inlet pipe, and the air inlet room is communicated with the air inlet shaft through an air inlet airtight door.

3. The ventilation system of the civil defense underground engineering power generation room according to claim 2, characterized in that: The air exhaust and smoke exhaust room comprises an air exhaust room and a smoke exhaust room, the air exhaust room is communicated with the air exhaust shaft through an air exhaust airtight door, and the smoke exhaust room is communicated with the air exhaust shaft through a smoke exhaust airtight door.

4. The ventilation system of the civil defense underground engineering power generation room according to claim 3, characterized in that: The air exhaust adjusting mechanism comprises an air exhaust branch pipe, the air inlet of the air exhaust branch pipe is located in the oil storage room, the air outlet of the air exhaust branch pipe is communicated with an air exhaust main pipe, the air inlet of the air exhaust main pipe is located in the power generation chamber, the air outlet of the air exhaust main pipe is located in the air exhaust room, the air exhaust main pipe is also communicated with the heat dissipation pipe of the diesel generator, the air exhaust main pipe is also connected with an air exhaust fan in the part of the power generation chamber, the air exhaust fan is located between the air outlet of the air exhaust branch pipe and the air outlet of the air exhaust main pipe, the air exhaust main pipe is also connected with an air exhaust adjusting valve, and the air exhaust adjusting valve is arranged between the air outlet of the air exhaust branch pipe and the air exhaust fan.

5. The ventilation system of the civil defense underground engineering power generation room according to claim 4, characterized in that: The smoke exhaust mechanism comprises a smoke exhaust pipe, the smoke inlet of the smoke exhaust pipe is connected with the smoke exhaust port of the diesel generator, and the smoke outlet of the smoke exhaust pipe extends into the smoke exhaust room through a wall sleeve.

6. The ventilation system of the civil defense underground engineering power generation room according to claim 5, characterized in that: A pressure measuring box is mounted on the outer wall of the power generation chamber and the main clean area, a pressure measuring gauge is arranged in the pressure measuring box, the pressure measuring gauge is connected with a pressure measuring pipe, a pressure measuring ball valve is arranged on the pressure measuring pipe, and the tail end of the pressure measuring pipe extends out of the pressure measuring box and penetrates into the power generation chamber.

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