CN217181645U - Combustible gas concentration detection alarm system - Google Patents

Abstract

The application relates to a combustible gas concentration detection and alarm system, and relates to the technical field of combustible gas storage. The alarm system is installed on a gas cylinder cabinet, and includes an internal detection module, which is connected to the gas cylinder cabinet and extends into the gas cylinder cabinet, and is used for The controller is connected to the outside of the gas cylinder cabinet for receiving the first detection signal sent by the internal detection module, if the controller receives the concentration value of the first detection signal If it is greater than the combustible gas concentration threshold preset by the controller, a first reaction signal is sent; the alarm module, in response to the first reaction signal sent by the controller, sends a first alarm signal. The present application can monitor the leakage of combustible gas in the gas cylinder cabinet in real time, and can issue an alarm, so that emergency measures can be taken in time.

Description

A combustible gas concentration detection and alarm system

technical field

The present application relates to the technical field of combustible gas storage, and in particular, to a combustible gas concentration detection and alarm system.

Background technique

A gas cylinder cabinet is a metal container used to improve local exhaust ventilation, protect cylinders (gas cylinders) from fire outside the cabinet, and protect surrounding objects from internal fires. Cylinders for storing flammable gases are usually stored in gas cylinder cabinets .

However, if the cylinder is placed in the gas cylinder cabinet for a long time or the switch is not closed after the cylinder is used, flammable gas leakage will occur, resulting in an increase in the concentration of flammable gas in the gas cylinder cabinet. After the flammable gas exceeds a certain concentration, it is easy to cause The fire even exploded.

In the related art, the gas cylinder cabinet has its own exhaust system, which can discharge the leaked combustible gas. However, when the combustible gas leakage is serious, it is difficult for the exhaust system to discharge the leaked combustible gas in time, so it is necessary to be able to issue an alarm in time. , to remind relevant personnel to take emergency measures.

Utility model content

In order to be able to monitor the leakage of combustible gas in the gas cylinder cabinet in real time, and to issue an alarm, so as to facilitate timely taking of emergency measures, the present application provides a combustible gas concentration detection and alarm system.

A kind of combustible gas concentration detection and alarm system provided by this application adopts the following technical scheme:

A combustible gas concentration detection and alarm system, which is installed on a gas cylinder cabinet, includes:

The internal detection module is connected to the gas cylinder cabinet and extends into the gas cylinder cabinet to detect the concentration of combustible gas in the gas cylinder cabinet and issue a first detection signal;

The controller is connected to the outside of the gas cylinder cabinet and is used for receiving the first detection signal sent by the internal detection module. If the concentration value of the first detection signal received by the controller is greater than the preset combustible gas concentration threshold value of the controller, a first response is issued Signal;

The alarm module sends out a first alarm signal in response to the first response signal sent by the controller.

By adopting the above technical solution, the internal detection module is inserted into the gas cylinder cabinet to detect the concentration of combustible gas in the gas cylinder cabinet. Once the concentration of combustible gas in the gas cylinder cabinet exceeds the standard, the controller will send a response signal to the alarm module , the alarm module sends out the first alarm signal to remind the staff that the combustible gas in the gas cylinder cabinet leaks and the concentration of combustible gas in the gas cylinder cabinet exceeds the standard, and measures should be taken in time to eliminate hidden dangers.

Optionally, an external detection module is also included, which is arranged outside the gas cylinder cabinet and is used to detect the concentration of combustible gas in the outer space of the gas cylinder cabinet, and issue a second detection signal;

The controller receives the second detection signal sent by the external detection module, and if the concentration value of the second detection signal received by the controller is greater than the combustible gas concentration threshold preset by the controller, a second response signal is sent;

The alarm module responds to the second response signal sent by the controller and sends out a second alarm signal.

By adopting the above technical solution, the external detection module detects the concentration of the combustible gas outside the gas cylinder cabinet. Once the concentration of the combustible gas outside the gas cylinder cabinet exceeds the standard, the controller will send a response signal to the alarm module. The second alarm signal of the alarm signal reminds the staff that the combustible gas in the gas cylinder cabinet leaks to the outside, and the concentration of the external combustible gas exceeds the standard, and measures should be taken in time to eliminate hidden dangers.

Optionally, the first alarm signal is set as one of a light signal and a sound signal, and the second alarm signal includes both a light signal and a sound signal.

By adopting the above technical solution, the first alarm signal has only one prompt, which reminds the staff that the combustible gas leaks and needs to take measures, and the second alarm signal shows two prompts at the same time, reminding the staff that the situation is more serious, and the gas cylinder cabinet has occurred. In case of external leakage, take timely measures.

Optionally, it also includes a ventilation module connected to the gas cylinder cabinet, the ventilation module is electrically connected to the controller, and in response to the first response signal sent by the controller, the gas in the gas cylinder cabinet is discharged.

By adopting the above technical solution, when the concentration of combustible gas in the gas cylinder cabinet exceeds the standard, the controller will control the ventilation module to start, and the combustible gas will be discharged to reduce potential safety hazards.

Optionally, it also includes an installation casing, which is detachably connected to the side wall of the gas cylinder cabinet; the controller is arranged in the installation casing, and the internal detection module and the external detection module are set as combustible gas concentration detectors, The combustible gas concentration detector is connected to the installation casing.

By adopting the above technical solution, the detection and alarm system is installed on the installation shell, which can be detachably installed with the gas cylinder cabinet. When the gas cylinder cabinet stores flammable gas, the detection and alarm system is installed, and when there is no flammable gas stored, the detection and alarm system is removed. Alarm system to avoid idle waste of equipment.

Optionally, the side wall of the gas cylinder cabinet is provided with a deep hole, the side wall of the installation casing is provided with a fixed suction cup, and the installation casing is connected to the side wall of the gas cylinder cabinet through the fixed suction cup, The internal detection module enters the gas cylinder cabinet through the deep hole.

By adopting the above technical solution, the installation shell can be adsorbed on the outer wall of the gas cylinder cabinet through the fixed suction cup, which is convenient for installation and disassembly. .

Optionally, an isolation membrane is provided in the deep hole, and a cross-shaped or rice-shaped incision is formed on the isolation membrane.

By adopting the above technical solution, the isolating membrane with the slit can better fit on the combustible gas concentration detector, reduce the gap between the deep hole and the outside world, and reduce the leakage of combustible gas to the outside of the gas cylinder cabinet.

Optionally, the installation casing is provided with a display screen, an alarm light and a voice alarm that are electrically connected to the controller.

By adopting the above technical solution, the display screen can display the concentration of combustible gas inside and outside the gas cylinder cabinet in real time, the alarm lamp sends out a light alarm signal, and the voice alarm device sends out a voice alarm signal, which is convenient for the staff to know.

To sum up, the present application includes at least one of the following beneficial technical effects:

1. The alarm system of the present application detects and monitors the concentration of combustible gas inside and outside the gas cylinder cabinet by installing a combustible gas concentration detection module on the inside and outside of the gas cylinder cabinet, and issues different alarms according to different combustible gas concentrations. Signals to remind staff to take different emergency measures.

2. The detection and alarm system of the present application is integrated on a mounting shell, which can be detachably installed with the gas cylinder cabinet. When there is no flammable gas stored in the gas cylinder cabinet, the detection and alarm system is removed to avoid idle waste of equipment.

Description of drawings

FIG. 1 is a system block diagram of a combustible gas concentration detection and alarm system according to an embodiment of the present application.

FIG. 2 is a schematic diagram of an installation structure of an alarm system according to an embodiment of the present application.

FIG. 3 is a sectional view of the installation structure of the alarm system and the gas cylinder cabinet according to the embodiment of the present application.

In the figure, 1. Installation shell; 100, gas cylinder cabinet; 101, deep hole; 102, isolation membrane; 103, exhaust fan; 104, exhaust pipe; 11, fixed suction cup; 12, display screen; 13, alarm Light; 14. Voice alarm; 2. Combustible gas concentration detector.

Detailed ways

The present application will be further described in detail below with reference to accompanying drawings 1 to 3 .

The present application proposes a combustible gas concentration detection and alarm system, referring to FIG. 1 , which includes an internal detection module, an external detection module, a controller, a ventilation module and an alarm module.

1 and 2, the internal detection module is arranged in the gas cylinder cabinet 100 for detecting the concentration of combustible gas in the gas cylinder cabinet 100, and forms a first detection signal according to the concentration of the combustible gas, and sends the first detection signal to controller.

The controller is arranged on the outside of the gas cylinder cabinet 100 and is electrically connected to the internal detection module for receiving the first detection signal sent by the internal detection module. The concentration value of the first detection signal is reacted. If the flammable gas concentration in the gas cylinder cabinet 100 is less than the flammable gas concentration threshold preset by the controller, the controller will not respond; if the flammable gas concentration in the gas cylinder cabinet 100 is greater than the flammable gas concentration threshold preset by the controller, The controller sends a first response signal to the alarm module.

The alarm module is arranged on the outside of the gas cylinder cabinet 100, is electrically connected to the controller, receives the first response signal sent by the controller, and responds to the first response signal, and sends out a first alarm signal to remind the staff that the gas cylinder cabinet 100 is flammable The gas concentration exceeds the standard.

The external detection module is disposed outside the gas cylinder cabinet 100 for detecting the concentration of combustible gas outside the gas cylinder cabinet 100, and forms a second detection signal according to the concentration of the combustible gas, and sends the second detection signal to the controller. If the flammable gas concentration around the outside of the gas cylinder cabinet 100 is less than the flammable gas concentration threshold preset by the controller, the controller will not respond; if the flammable gas concentration around the outside of the gas cylinder cabinet 100 is greater than the flammable gas concentration preset by the controller threshold, the controller sends a second response signal to the alarm module. The alarm module receives the second reaction signal sent by the controller, responds to the second reaction signal, and sends out a second alarm signal to remind the staff that the concentration of combustible gas outside the gas cylinder cabinet 100 also exceeds the standard, and the leakage accident is more serious.

Referring to FIGS. 2 and 3 , the internal detection module, the external detection module, the controller and the alarm module are all mounted on the mounting housing 1 . The controller is installed in the inner cavity of the installation casing 1, and a display screen 12 is arranged on the front of the installation casing 1. The display screen 12 is electrically connected to the controller for displaying the gas measured by the internal detection module and the external detection module. The flammable gas concentration value inside and outside the bottle cabinet 100; in this embodiment, both the internal detection module and the external detection module are set as the combustible gas concentration detector 2, wherein the internal detection module is fixedly installed on the back of the installation housing 1, and the external detection module is fixedly installed On top of the mounting housing 1.

The alarm module includes an alarm light 13 and a voice alarm 14. The alarm light 13 is installed on the top of the installation shell 1, and the voice alarm 14 is installed on the front structural plate of the installation shell 1. The alarm light 13 can issue a light alarm and a voice alarm. The device 14 can issue a voice alarm. The first alarm signal in this embodiment is set to be one of a light signal and a sound signal, that is, the alarm light 13 works alone or the voice alarm 14 works alone. In this embodiment, a light alarm signal is used; the second alarm signal includes light There are two kinds of signals and sound signals, that is, the alarm light 13 and the voice alarm 14 receive the control signal at the same time and work at the same time.

In this embodiment, the installation housing 1 and the gas cylinder cabinet 100 can be detachably installed, which is convenient for removal. The side wall of the gas cylinder cabinet 100 is provided with a circular in-depth hole 101, and the in-depth hole 101 is connected with a rubber isolation film 102. The isolation film 102 is used to block the deep hole 101 , and at the same time, the center of the isolation film 102 is provided with a cross-shaped or rice-shaped incision.

Two fixed suction cups 11 are connected to the back side wall of the installation shell 1 . The fixed suction cups 11 include connecting rods and rubber suction cups at the ends. The installation shell 1 can be connected to the side wall of the gas cylinder cabinet 100 through the fixed suction cups 11 . While the installation shell 1 is fixed on the gas cylinder cabinet 100, the combustible gas concentration detector 2 corresponding to the internal detection module enters the gas cylinder cabinet 100 through the incision on the isolation membrane 102, and the combustible gas inside the gas cylinder cabinet 100 is detected. concentration is detected.

1 and 3 , the ventilation module is electrically connected to the controller for responding to the first response signal sent by the controller, and starts to work to discharge the gas in the gas cylinder cabinet 100 . Specifically, in this embodiment, the ventilation module includes an exhaust fan 103 and an exhaust pipe 104 . The exhaust fan 103 is installed on the top wall of the gas cylinder cabinet 100 , and the lower end of the exhaust pipe 104 is connected to the top wall of the gas cylinder cabinet 100 . , the exhaust fan 103 is set inside the cover, and the upper end is upwardly led out of the room, through the operation of the exhaust fan 103, the combustible gas leaked in the gas cylinder cabinet 100 can be discharged in time.

The implementation principle of the embodiment of the present application is:

When a flammable gas leak occurs in the gas cylinder cabinet 100, as the concentration of the flammable gas in the gas cylinder cabinet 100 increases and reaches the maximum preset threshold of the controller, the controller will control the alarm light 13 to start, and issue a light signal to remind the staff , the combustible gas concentration in the gas cylinder cabinet 100 exceeds the standard; at the same time, the controller controls the exhaust fan 103 to start, and the exhaust fan 103 discharges the gas in the gas cylinder cabinet 100 to reduce the combustible gas concentration in the gas cylinder cabinet 100 .

When the leakage of the combustible gas in the gas cylinder cabinet 100 is serious, the external detection module detects that the concentration of the combustible gas outside the gas cylinder cabinet 100 exceeds the standard, and the controller will simultaneously control the alarm light 13 and the voice alarm 14 to turn on at the same time, and issue a light alarm signal and Voice alarm signal to remind staff to take timely measures.

The embodiments of this specific implementation manner are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, wherein the same components are denoted by the same reference numerals. Therefore: all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims (8)

1. A combustible gas concentration detection and alarm system, characterized in that the system is installed on the gas cylinder cabinet (100), comprising: an internal detection module, connected to the gas cylinder cabinet (100) and extending into the gas cylinder cabinet (100), for detecting the concentration of combustible gas in the gas cylinder cabinet (100), and issuing a first detection signal; The controller is connected to the outside of the gas cylinder cabinet (100), and is used for receiving the first detection signal sent by the internal detection module. If the concentration value of the first detection signal received by the controller is greater than the flammable gas concentration threshold preset by the controller, it sends out first response signal; The alarm module sends out a first alarm signal in response to the first response signal sent by the controller. 2. A combustible gas concentration detection and alarm system according to claim 1, characterized in that it further comprises an external detection module, which is arranged on the outside of the gas cylinder cabinet (100) and is used to detect the presence of an outer space of the gas cylinder cabinet (100). Combustible gas concentration, send out a second detection signal; The controller receives the second detection signal sent by the external detection module, and if the concentration value of the second detection signal received by the controller is greater than the combustible gas concentration threshold preset by the controller, a second response signal is sent; The alarm module responds to the second response signal sent by the controller and sends out a second alarm signal. 3. A combustible gas concentration detection and alarm system according to claim 2, wherein the first alarm signal is set as one of a light signal and a sound signal, and the second alarm signal comprises a light signal and a sound signal. There are two kinds of sound signals. 4. A combustible gas concentration detection and alarm system according to claim 1, characterized in that it further comprises a ventilation module connected to the gas cylinder cabinet (100), the ventilation module is electrically connected with the controller, and responds to the controller The first response signal is sent out, and the gas in the gas cylinder cabinet (100) is exhausted. 5. A combustible gas concentration detection and alarm system according to claim 2, characterized in that it further comprises an installation casing (1), the installation casing (1) being detachably connected to the gas cylinder cabinet (100) on the side wall; The controller is arranged in the installation casing (1), the internal detection module and the external detection module are arranged as a combustible gas concentration detector (2), and the combustible gas concentration detector (2) is connected to the installation casing (1). 6. A combustible gas concentration detection and alarm system according to claim 5, characterized in that, a deep hole (101) is opened on the side wall of the gas cylinder cabinet (100), and the mounting shell (1) A fixed suction cup (11) is provided on the side wall of the gas cylinder, the mounting shell (1) is connected to the side wall of the gas cylinder cabinet (100) through the fixed suction cup (11), and the internal detection module enters through the deep hole (101). Inside the gas cylinder cabinet (100). 7 . The combustible gas concentration detection and alarm system according to claim 6 , wherein an isolation membrane ( 102 ) is arranged in the deep hole ( 101 ), and a cross-shaped opening is formed on the isolation membrane ( 102 ). 8 . or rice-shaped incision. 8 . The combustible gas concentration detection and alarm system according to claim 5 , wherein the installation casing ( 1 ) is provided with a display screen ( 12 ), an alarm light ( 13 ) that are electrically connected to the controller. 9 . ) and a voice alarm (14).

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