Fire-fighting inspection cabinet

A fire control and controller technology, applied in fire rescue and other directions, can solve the problems of delayed fire extinguishing, negligence in management, rust of pump shaft, impeller and shaft sleeve, etc., to achieve the effect of easy maintenance

Pending Publication Date: 2020-04-24
河南省中原智能电气科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Nowadays, there is a common problem in all kinds of fire-fighting water supply equipment: when a fire occurs in a building, a considerable number of fire-fighting water pumps cannot start the water pump after receiving the fire-fighting linkage alarm start signal, thus delaying the fire-fighting opportunity and causing damage to national property and people. The main reason for the above phenomenon is that the fire pumps do not stop and start when there is no disaster or danger. Most of the fire pumps purchased by enterprises are not made of stainless steel. Over time, in the humid environment of the pump room, the pump shaft, impeller and shaft sleeve inside the fire pump will rust and die
At the same time, the fire pump management personnel were negligent in management and did not conduct periodic inspections and maintenance
[0004] In order to make up for the long-term idleness of firefighting equipment, the failure to start due to reasons such as fire pump rust has caused serious consequences to national property and people's lives.

Method used

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  • Fire-fighting inspection cabinet

Examples

Experimental program
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Effect test

Embodiment 1

[0034] A fire inspection cabinet provided by a preferred embodiment of the present invention includes a programmable logic controller, the programmable logic controller is connected to the touch screen through the RS232 interface, connected to the fire control center through the RS485 interface, and the output terminal of the programmable logic controller Connect to the multi-function terminal of the frequency converter, set the multi-function terminal in the frequency converter as multi-speed function, and connect the fire pump and sprinkler pump; the frequency converter includes manual inspection mode and PID inspection mode; the manual inspection mode passes The up and down buttons adjust the output frequency of the inverter to control the speed of the fire pump and spray pump; the PID inspection mode uses a pressure transmitter installed on the pipeline to convert the pressure signal into a 4-20mA signal and input it to the inverter. Compared with the internal set pressure,...

Embodiment 2

[0041] Further: the frequency converter is composed of a rectification unit, a filter unit, an inverter unit, a brake unit, a drive unit, a detection unit and a micro-processing unit.

[0042] When working: the inverter adjusts the voltage and frequency of the output power supply by switching off the internal IGBT, and provides the required power supply voltage according to the actual needs of the motor, thereby achieving the purpose of energy saving and speed regulation. In addition, the inverter has many Protection functions, such as over-current, over-voltage, overload protection.

Embodiment 3

[0044]Further: the parameters set on the touch screen include the inspection cycle, and the inspection mode is automatically started by the cycle clock.

[0045] When working: Complete the low-frequency and low-speed self-propelled inspection control of the fire pump and spray pump. When a fire occurs, the programmable controller will automatically stop and interrupt the inspection program instantaneously after receiving the fire command, start the fire pump, and fire the fire. End shutdown.

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Abstract

The invention discloses a fire-fighting inspection cabinet, which comprises a programmable logic controller (PLC). The PLC is connected with a touch screen through a RS232 interface and connected witha fire-fighting control center through a RS485 interface, an output terminal of the PLC is connected with a multifunctional terminal of a frequency converter, and the multifunctional terminal in thefrequency converter is arranged to have a multi-channel-speed function and be connected with a fire-fighting pump and a spray pump; the frequency converter has a manual inspection mode and a PID inspection mode; the PLC is adopted as a control core to display / input set parameters together with the touch screen, the frequency converter is adopted as a water pump driver for low-frequency inspection,and the fire-fighting pump and the spray pump are both water pumps; and the water pump flow and the water pump rotating speed are directly proportional, the water pump lift and the square of the water pump rotating speed are directly proportional, the water pump shaft power is equal to the product of the flow and the lift, thus the water pump shaft power and the cube of the water pump rotating speed are directly proportional, and that is, the water pump shaft power and the cube of the power supply frequency are directly proportional.

Description

technical field [0001] The invention belongs to the field of fire-fighting equipment and relates to a fire-fighting inspection cabinet. Background technique [0002] Fire-fighting water supply equipment is an important part of the fire-fighting system. Regardless of whether the fire-fighting linkage alarm system or other automatic fire control equipment judges the disaster situation and gives corresponding alarm information, the ultimate fundamental purpose is to start the corresponding fire control cabinet. Thereby starting the fire water pump correspondingly controlled by the control cabinet. [0003] Nowadays, there is a common problem in all kinds of fire-fighting water supply equipment: when a fire occurs in a building, a considerable number of fire-fighting water pumps cannot start the water pump after receiving the fire-fighting linkage alarm start signal, thus delaying the fire-fighting opportunity and causing damage to national property and people. The main reason ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62C37/50
CPCA62C37/50
Inventor 符耐芳
Owner 河南省中原智能电气科技有限公司
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