CN-224215145-U - Gas shut-off valve and ventilation equipment integrated control case and gas system

CN224215145UCN 224215145 UCN224215145 UCN 224215145UCN-224215145-U

Abstract

The utility model discloses a gas shut-off valve and ventilation equipment integrated control box and a gas system, wherein the gas shut-off valve and ventilation equipment integrated control box comprises a gas alarm control assembly, a gas alarm control module and a gas alarm control module, wherein the gas alarm control assembly is used for detecting the concentration of gas in the surrounding environment of the gas shut-off valve and ventilation equipment integrated control box, sending out alarm information and outputting an alarm control signal when detecting that the concentration of gas is higher than an early warning value; the gas shut-off valve control circuit is used for controlling the gas shut-off valve to shut off a gas source when receiving an alarm control signal, the input end of the gas shut-off valve control circuit is connected with the output end of the gas alarm control assembly, the output end of the gas shut-off valve control circuit is used for connecting with a ventilation device, and the ventilation device control circuit is used for controlling the ventilation device to work when receiving the alarm control signal. The utility model solves the problem of complex installation and connection of the gas and the ventilation control box.

Inventors

GAN SHIJIE
ZHAO WEIJIE
ZHU CHUNHUI
WANG CHANGKUI
ZHOU YU
LI KAIJUN
QIAN DECHANG

Assignees

深圳市燃气集团股份有限公司

Dates

Publication Date: 20260508
Application Date: 20250606

Claims (10)

1. A gas shut-off valve and ventilation equipment integrated control box, characterized by comprising: The gas alarm control assembly is used for detecting the gas concentration of the surrounding environment of the gas shut-off valve and the ventilation equipment integrated control box, sending out alarm information and outputting an alarm control signal when detecting that the gas concentration is higher than an early warning value; The input end of the gas shut-off valve control circuit is connected with the output end of the gas alarm control assembly, the output end of the gas shut-off valve control circuit is used for being connected with a gas shut-off valve, and the gas shut-off valve control circuit is used for controlling the gas shut-off valve to shut-off a gas source when receiving the alarm control signal; The input end of the ventilation equipment control circuit is connected with the output end of the fuel gas alarm control assembly, the output end of the ventilation equipment control circuit is used for being connected with ventilation equipment, and the ventilation equipment control circuit is used for controlling the ventilation equipment to work when receiving the alarm control signal.
2. The integrated gas shut-off valve and ventilation device control box of claim 1, wherein said gas alarm control assembly comprises: An alarm; The gas detection probe is used for detecting the gas concentration of the surrounding environment of the gas shut-off valve and the ventilation equipment integrated control box and outputting a corresponding gas concentration detection signal; The input end of the main controller is connected with the output end of the gas detection probe, the output end of the main controller is connected with the input end of the alarm, the input end of the gas shut-off valve control circuit and the input end of the gas shut-off valve control circuit, and the main controller is used for controlling the alarm to send warning information and outputting alarm control signals to the gas shut-off valve control circuit and the ventilation equipment control circuit when detecting that the gas concentration is higher than an early warning value according to the gas concentration detection signal.
3. The integrated gas shut-off valve and ventilation device control box of claim 1, wherein the gas shut-off valve control circuit comprises: The input end of the first relay is connected with the output end of the fuel gas alarm control assembly, and the output end of the first relay is used for being connected with a fuel gas cut-off valve; the second relay is arranged in parallel between the output end of the first relay and the gas cut-off valve, and the output end of the second relay is a normally closed contact.
4. The integrated gas shut-off valve and ventilation unit control box of claim 3, wherein said ventilation unit control circuit comprises: The input end of the third relay is connected with the output end of the gas alarm control assembly, and the output end of the third relay is used for being connected with ventilation equipment; the fourth relay is arranged between the output end of the third relay and the ventilation equipment in parallel, and the output end of the fourth relay is a normally closed contact.
5. The integrated gas shut-off valve and ventilation unit control box of claim 4, further comprising: The gas control key is arranged between the output end of the first relay and the gas cut-off valve in series, and the gas control key cuts off or turns on a series circuit of the first relay and the gas cut-off valve when triggered; The ventilation control key is connected in series between the output end of the third relay and the ventilation equipment, and when triggered, the ventilation control key cuts off or turns on a series circuit of the third relay and the ventilation equipment, and the gas control key are self-resetting keys.
6. The integrated gas shut-off valve and ventilation unit control box of claim 5, further comprising: The first change-over switch is arranged in series between the output end of the first relay and the gas control key, and when triggered, the first change-over switch turns off or turns on a series circuit of the first relay and the gas control key; The second change-over switch is arranged between the output end of the fourth relay and the ventilation control key, and the second change-over switch cuts off or turns on a line between the fourth relay and the ventilation control key when triggered.
7. The integrated gas shut-off valve and ventilation unit control box of claim 1, further comprising: The emergency control key is arranged between an external power supply and the power end of the gas shut-off valve control circuit and the power end of the ventilation equipment control circuit, and when the emergency control key is triggered, the external power supply is disconnected or connected with the gas shut-off valve control circuit and the electric connection between the gas shut-off valve control circuit.
8. The integrated gas shut-off valve and ventilation unit control box of claim 1, further comprising: The gas alarm control system comprises a gas alarm control assembly, an indication circuit, a gas shut-off valve control circuit and a ventilation equipment control circuit, wherein the input end of the indication circuit is connected with the output end of the gas alarm control assembly, the output end of the gas shut-off valve control circuit and the output end of the ventilation equipment control circuit, the gas alarm control assembly is used for controlling the indication circuit to work when warning information is sent out, the gas shut-off valve control circuit is used for controlling the indication circuit to work when the gas shut-off valve is controlled to shut-off a gas source, and the ventilation equipment control circuit is used for controlling the indication circuit to work when the ventilation equipment is controlled to work.
9. The integrated gas shut-off valve and ventilation unit control box of claim 1, further comprising: The control box body, the control box body is formed with the holding chamber, gas trip valve control circuit ventilation equipment control circuit with gas alarm control subassembly set up in the control box body.
10. A gas system comprising a gas shut-off valve, a ventilator, and a gas shut-off valve and ventilator integrated control box according to any one of claims 1-9, said gas shut-off valve being connected to a gas shut-off valve control circuit in said gas shut-off valve and ventilator integrated control box, said ventilator being connected to a ventilator control circuit in said gas shut-off valve and ventilator integrated control box.

Description

Gas shut-off valve and ventilation equipment integrated control case and gas system Technical Field The utility model relates to the field of gas safety control, in particular to a gas shut-off valve, a ventilation equipment integrated control box and a gas system. Background The fuel gas is a clean and high-efficiency energy source, brings convenience to our life, but has inflammable and explosive characteristics, especially industrial and commercial users such as catering industry, large flow of people and more gas equipment, and if the fuel gas is not found in time and is correctly disposed when leakage occurs, safety accidents such as explosion and fire disaster can be caused. When the gas leakage occurs, the gas alarm controller can timely give out early warning at the initial stage of the leakage, remind workers to take effective safety measures, avoid accidents and promote the safety guarantee of using the gas. The existing control box for fuel gas is complex to install and connect, when the fuel gas alarm controller monitors the concentration of fuel gas, the emergency cut-off valve is required to be closed, and ventilation facilities are required to be started at the same time, so that three independent equipment interconnection lines are required to realize linkage. The output control of part of the combustible gas alarm controllers is only one group, and ventilation facility equipment cannot be directly controlled, so that the control needs to be controlled in series with the electromagnetic type gas emergency cut-off valve, and the complexity of a control circuit is increased. Disclosure of Invention In view of the above-mentioned shortcomings of the prior art, the present utility model aims to provide a gas shut-off valve and ventilation equipment integrated control box and a gas system, so as to solve the problem of complex installation and connection of the gas and ventilation control boxes. The technical scheme of the utility model is as follows: A gas shut-off valve and ventilation device integrated control box comprising: The gas alarm control assembly is used for detecting the gas concentration of the surrounding environment of the gas shut-off valve and the ventilation equipment integrated control box, sending out alarm information and outputting an alarm control signal when detecting that the gas concentration is higher than an early warning value; The input end of the gas shut-off valve control circuit is connected with the output end of the gas alarm control assembly, the output end of the gas shut-off valve control circuit is used for being connected with a gas shut-off valve, and the gas shut-off valve control circuit is used for controlling the gas shut-off valve to shut-off a gas source when receiving the alarm control signal; The input end of the ventilation equipment control circuit is connected with the output end of the fuel gas alarm control assembly, the output end of the ventilation equipment control circuit is used for being connected with ventilation equipment, and the ventilation equipment control circuit is used for controlling the ventilation equipment to work when receiving the alarm control signal. Optionally, the gas alarm control assembly includes: An alarm; The gas detection probe is used for detecting the gas concentration of the surrounding environment of the gas shut-off valve and the ventilation equipment integrated control box and outputting a corresponding gas concentration detection signal; The input end of the main controller is connected with the output end of the gas detection probe, the output end of the main controller is connected with the input end of the alarm, the input end of the gas shut-off valve control circuit and the input end of the gas shut-off valve control circuit, and the main controller is used for controlling the alarm to send warning information and outputting alarm control signals to the gas shut-off valve control circuit and the ventilation equipment control circuit when detecting that the gas concentration is higher than an early warning value according to the gas concentration detection signal. Optionally, the gas shut-off valve control circuit includes: The input end of the first relay is connected with the output end of the fuel gas alarm control assembly, and the output end of the first relay is used for being connected with a fuel gas cut-off valve; the second relay is arranged in parallel between the output end of the first relay and the gas cut-off valve, and the output end of the second relay is a normally closed contact. Optionally, the ventilation device control circuit includes: The input end of the third relay is connected with the output end of the gas alarm control assembly, and the output end of the third relay is used for being connected with ventilation equipment; the fourth relay is arranged between the output end of the third relay and the ventilation equipment in parallel, and the output end of the fourth relay