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Fire pre-action alarm device

An alarm device, pre-action technology, applied in fire alarms, valve devices, alarms, etc., can solve problems such as inapplicability

Active Publication Date: 2020-05-12
NANAN GUISHUN FIRE AUDIO SUPPLIES COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The wet system is not suitable for important places where mis-spraying is not desired, such as computer rooms, reference rooms, historical archives, libraries, mechanical and electrical instruments that are afraid of water and moisture, food and drug warehouses, etc.

Method used

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  • Fire pre-action alarm device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The debugging of the pre-action valve group can be manually started and debugged on-site emergency start, and the electric start and debug can be remotely controlled. 1 Manual debugging: a. After the installation is completed, first close the water inlet butterfly valve 3, open the pre-alarm ball valve 25, reset ball valve 19, manual pressure relief valve 21, water discharge ball valve 11 and water discharge ball valve 23, close the water outlet butterfly valve 4, and open it slowly The water inlet butterfly valve 3 fills the pre-action valve group with water. At this time, the anti-reset valve 29 is automatically opened, and the manual pressure relief valve 21 is closed after the air is removed. The anti-reset valve 29 is automatically closed, and no water flows out. After ball valve 23 no-pressure water flowed out, close and reset ball valve 19, after the remaining water was discharged completely, close drain ball valve 11 and discharge water ball valve 23, now the dia...

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PUM

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Abstract

The invention discloses a fire pre-action alarm device and belongs to the technical field of pedal assembly machines. The fire pre-action alarm device comprises a diaphragm type deluge valve and a wettype alarm valve. Joints at the right sides of a water supply side channel and a system side channel are correspondingly connected with a test alarm water outlet pipe, a pre-alarm water outlet pipe and an alarm collecting pipe. A pressure switch and a water motor alarm are arranged at the top end of the alarm collecting pipe. A water draining pipe and a water draining ball valve are connected toa joint of the left side of the system side channel. A joint of the left side of the water supply side channel is connected with a water supply pipe, a first water supply branch pipe and a second water supply branch pipe. A water supply pressure gauge and a water adding isolation ball valve are sequentially mounted on the first water supply branch pipe. A first film cavity pipe, a resetting ball valve and a second film cavity pipe are sequentially mounted on the second water supply branch pipe. An electromagnetic decompression valve and a manual decompression valve are mounted on the branch flow of the tail end of the second water supply branch pipe. A drainage pipe and a water drainage ball valve are connected to a joint on the left side of the wet type alarm valve. The first water supplybranch pipe is connected to the middle of the drainage pipe. The fire pre-action alarm device is provided.

Description

technical field [0001] The invention relates to the technical field of fire-fighting equipment, in particular to a fire pre-action alarm device. Background technique [0002] The pre-action system is the main component of the pre-action automatic sprinkler system. It is composed of a pre-action alarm valve group, a control panel, an air pressure maintenance device and an air supply device. It is opened by electric, pneumatic, mechanical or other methods, so that the water can It is a one-way valve group device with one-way flow into the sprinkler system and alarm at the same time. The traditional fire prevention wet system consists of sprinklers, piping systems, wet alarm valves, alarm devices and water supply facilities. Because the system is always filled with pressure water in the pipes before and after the alarm valve, it is called wet sprinkler system or wet pipe system. The wet system is not suitable for important places where mis-spraying is not desired, such as com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62C35/62A62C35/68G08B17/00F16K7/14
CPCA62C35/62A62C35/68F16K7/14G08B17/00
Inventor 王永贵王永和
Owner NANAN GUISHUN FIRE AUDIO SUPPLIES COMPANY