Exhaust air and fresh air combined ventilation system of gas fire control room

A ventilation system and fresh air technology, which is applied in the field of ventilation systems, can solve the problems of wasteful fan output due to repeated installation of air duct systems, and achieve the effects of reducing the number of air ducts and air outlets, improving utilization, and saving engineering and investment

Pending Publication Date: 2018-10-02
XIAN CHANGQING TECH ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The gas fire extinguishing and exhaust system is normally closed, and is only temporarily activated after the gas fire is extinguished; while the fresh air system is in daily operation, and is closed when a fire occurs; the two are complementary in terms of operating time, but the separate setting has caused the air duct Repeated setup and daily idleness of the system and waste of fan output

Method used

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  • Exhaust air and fresh air combined ventilation system of gas fire control room
  • Exhaust air and fresh air combined ventilation system of gas fire control room
  • Exhaust air and fresh air combined ventilation system of gas fire control room

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as image 3 , Figure 4 As shown, in the present invention, the gas fire extinguishing exhaust duct and the fresh air return duct are combined and arranged, and the exhaust duct is arranged along the lower part of the room (for example, the communication room can be arranged in the anti-static floor, and the tuyere is arranged on the floor), and the fresh air duct Installed in the ceiling of the room. The concrete scheme that the present invention adopts is as follows:

[0029] A ventilation system combining exhaust air and fresh air in a gas fire extinguishing room, comprising a fresh air ventilator 1 and an exhaust fan 2, the fresh air ventilator 1 and the exhaust fan 2 are arranged in parallel, and the fresh air ventilator 1 is provided with a first channel and the second channel, the two ends of the first channel are respectively connected with the fresh air inlet pipe 14 and the fresh air outlet pipe 6, and the two ends of the second channel are connected wi...

Embodiment 2

[0033] On the basis of Embodiment 1, the first channel of the fresh air ventilator 1 is provided with a first ventilator at the interface of the fresh air outlet pipe 6, and the second channel is provided with a second fan at the connection of the second exhaust air outlet pipe 13. ventilator. The first ventilator adopts a single-speed fan, and the second ventilator adopts a double-speed fan. The air volume of the first ventilator is calculated according to the needs of indoor personnel and the maintenance of indoor positive pressure; the air volume of the second ventilator at low speed is 80% of the fresh air volume, and the air volume of the second ventilator at high speed meets the ventilation of 5 times / h of room fire extinguishing gas exhaust The number of times, the selection of exhaust fan 2 is based on the exhaust air volume of gas fire extinguishing minus the exhaust air volume of fresh air ventilator 1. The size of the exhaust air inlet pipe 7 is calculated accordin...

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Abstract

The invention provides an exhaust air and fresh air combined ventilation system of a gas fire control room. The exhaust air and fresh air combined ventilation system of the gas fire control room comprises a fresh air ventilator and an exhaust fan which are arranged in parallel. The fresh air ventilator is internally provided with a first channel and a second channel which are arranged in an intersected manner. The two ends of the first channel are connected with a fresh air inlet pipe and a fresh air outlet pipe correspondingly. The two ends of the second channel are connected with an exhaustair outlet pipe and an exhaust air inlet pipe correspondingly. The two ends of the exhaust fan are connected with a second exhaust air inlet pipe and a second exhaust air outlet pipe correspondingly.A first exhaust air inlet pipe and the second exhaust air inlet pipe are combined through a tee joint. The fresh air outlet pipe is provided with a first electric air valve, the first exhaust air inlet pipe is provided with a second electric air valve, and the second exhaust air inlet pipe is provided with a third electric air valve. By combining exhaust air in the gas fire control room to a freshair renewal system, an air pipe independently exhausting air and a draught fan are reduced, the work amount and the investment are reduced, the utilization space of the room is increased, and the utilization rate of ventilation facilities is increased.

Description

technical field [0001] The invention relates to the technical field of ventilation, in particular to a ventilation system combining exhaust air and fresh air in a gas fire extinguishing room. Background technique [0002] With the development of my country's informatization and automation industries, the use of communication equipment has increased significantly, which plays a pivotal role in industrial production and social communication, and the number of communication equipment rooms for corresponding communication equipment has also increased. [0003] The fine dust particles in the air have a significant negative impact on the normal operation and service life of electronic equipment. Therefore, the communication room is usually equipped with a dust removal device, and the positive pressure ventilation is carried out through the fresh air system to avoid the intrusion of particles from outdoors and adjacent rooms. At the same time, electronic equipment cannot be exposed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F7/08F24F13/02F24F11/35
CPCF24F7/08F24F11/35F24F13/02
Inventor 付浩张海曦李华山刘伟白玉李俊杰刘佳明李烨史亚萍
Owner XIAN CHANGQING TECH ENG
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