CN221225610U

CN221225610U - Multi-channel integrated device for gas detection alarm

Info

Publication number: CN221225610U
Application number: CN202323174188.5U
Authority: CN
Inventors: 张东旭; 严其东
Original assignee: Nanjing Aut Eq Science & Technology Co ltd
Current assignee: Nanjing Aut Eq Science & Technology Co ltd
Priority date: 2023-11-23
Filing date: 2023-11-23
Publication date: 2024-06-25
Anticipated expiration: 2033-11-23

Abstract

The utility model provides a multichannel integrated device of a gas detection alarm, which comprises a cabinet body, wherein a front door plate is arranged in front of the cabinet body, a rear door plate is arranged at the rear of the cabinet body, a plurality of channel mounting plates are arranged in the cabinet body, the channel mounting plates are parallel to the bottom surface of the cabinet body, a signal switching module is arranged on the channel mounting plates, a plurality of signal acquisition modules are arranged on the signal switching module, the signal acquisition modules are electrically connected with a gas detector through the signal switching modules, two power supply mounting plates are arranged on one side, close to the rear door, of the cabinet body, the power supply mounting plates are parallel to the rear door plate, extend along the height direction of the cabinet body, the power supply mounting plates are respectively arranged on two sides of the width direction of the cabinet body, a main control mounting plate is arranged on the front door plate, a main control module is arranged on the main control mounting plate, a battery mounting plate is arranged on the top of the cabinet body, and a standby battery is arranged on the battery mounting plate. The device greatly expands the number of the detectors which can be linked, reduces the training time, accelerates the response speed and has simple and convenient installation and replacement process.

Description

Multi-channel integrated device for gas detection alarm

Technical Field

The utility model relates to the technical field of gas detection devices, in particular to a multichannel integrated device of a gas detection alarm.

Background

In places where toxic and combustible gases may be generated in chemical industry, medicine and the like, a detection system is generally arranged to monitor the gases in real time. The GDS system (gas detection alarm system) adopted in the current harmful gas detection system is an electrical cabinet which can realize the functions of real-time monitoring, early warning processing, remote control, equipment management and the like, and is a set of electrical cabinet system which is composed of an upper computer software system, a signal conversion module, a gas alarm controller, a gas detector and the like. When the gas detector detects that the gas concentration in the environment exceeds a set value, the gas detector communicates with the cabinet, and then gives an alarm, links an exhaust system or an audible and visual alarm system, prompts an operator to take safety treatment measures in time, or automatically starts a control device connected in advance so as to ensure safe production.

Most of the existing GDS systems have the following problems:

1. the number of the gas detectors which can be matched and connected is small;

2. the fitting is inconvenient to install and replace;

3. The coupling of too many detectors may result in a decrease in the reaction speed of the system.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides the multi-channel integrated device of the gas detection alarm, the number of the gangable detectors is greatly expanded through hierarchical management, the training time is reduced, the response speed is accelerated, and the installation and replacement processes are simple and convenient.

In order to achieve the above purpose, the multi-channel integrated device of the gas detection alarm comprises a cabinet body, wherein a front door plate is arranged in front of the cabinet body, a rear door plate is arranged behind the cabinet body, a plurality of channel mounting plates are arranged in the cabinet body, the channel mounting plates are parallel to the bottom surface of the cabinet body, a signal switching module is arranged on the channel mounting plates, a plurality of signal acquisition modules are arranged on the signal switching module, the signal acquisition modules are electrically connected with a gas detector through the signal switching modules, two power supply mounting plates are arranged on one side, close to the rear door plate, of the cabinet body, the power supply mounting plates are parallel to the rear door plate, the power supply mounting plates extend along the height direction of the cabinet body, the power supply mounting plates are respectively arranged on two sides of the width direction of the cabinet body, a main control mounting plate is arranged on the front door plate, a main control module is arranged on the main control mounting plate, a battery mounting plate is arranged on the top of the cabinet body, and a standby battery is arranged on the battery mounting plate.

Further, the signal transfer module comprises a transfer circuit board, a plurality of external interface terminals are arranged at the top end of the transfer circuit board, a plurality of limiting blocks are arranged at the bottom end of the transfer circuit board, a plurality of golden finger connectors are arranged between the external interface terminals and the limiting blocks, and the signal acquisition module is arranged on the golden finger connectors.

Further, the signal acquisition module comprises a module base, a module shell is arranged on the module base, the module shell comprises an upper shell and a lower shell, and a terminal plate is arranged in the module shell.

Further, the module base is installed on the switching circuit board through the bolt assembly, the top and the bottom of the module base are respectively provided with protruding clamping rails, the top and the bottom of the module shell are respectively provided with clamping grooves, the top and the bottom of the module shell are provided with elastic snap springs, and the top and the bottom of the module base are provided with buckling grooves matched with the elastic snap springs.

Further, the main control module is electrically connected with the display module, the industrial personal computer, the signal processing module and the reservation module, the signal processing module is electrically connected with the signal switching module, the terminal board signal switching module is electrically connected with the relay switching module, and the relay switching module is electrically connected with a plurality of relay boards.

Further, a top box is arranged at the top of the cabinet body, and a fan is arranged in the top box.

The multi-channel integrated device of the gas detection alarm has the following advantages:

1. At most, 320 4-20mA signal detectors and 1000 485 signal detectors can be connected in a matching way, and the number of the signal detectors is 4 times that of a normal GDS system;

2. The quick-plug and guide rail type module is used, and the module can be quickly pulled out and plugged when being installed and replaced;

3. And carrying out partition management, wherein each partition is simultaneously connected with 64 paths of detectors at most, so that the training time is shortened, and the response speed is increased.

Drawings

The utility model is further described and illustrated below with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of a multi-channel integrated device for a gas detection alarm according to a preferred embodiment of the present utility model.

Fig. 2 is a schematic diagram of a structure of a gas detection alarm multichannel integrated device with a front door opened.

FIG. 3 is a schematic diagram of the structure of the gas detection alarm multichannel integrated device with the back door removed.

FIG. 4 is a schematic diagram of a side view of a multi-channel integrated device for a gas detection alarm.

Fig. 5 is a schematic diagram of a structure for embodying a signal transfer module.

Fig. 6 is a schematic diagram of a structure for embodying a signal acquisition module.

FIG. 7 is a schematic diagram showing the manner in which the multi-channel integrated device of the gas detection alarm is electrically connected.

Reference numerals: 1. a cabinet body; 11. a front door panel; 111. a display panel; 12. a rear door panel; 13. a channel mounting plate; 14. a signal transfer module; 141. a switching circuit board; 142. an external interface terminal; 143. a limiting block; 144. a golden finger connector; 15. a signal acquisition module; 151. a module base; 152. a module housing; 153. a terminal plate; 154. clamping the rail; 155. a clamping groove; 156. an elastic clamp spring; 157. a buckling groove; 16. a power supply mounting plate; 17. a main control mounting plate; 171. a main control module; 18. a battery mounting plate; 19. a set-top box; 21. a display module; 22. an industrial personal computer; 23. a signal processing module; 24. a reservation module; 25. a relay switching module; 26. and a relay board.

Detailed Description

The technical solution of the present utility model will be more clearly and completely explained by the description of the preferred embodiments of the present utility model with reference to the accompanying drawings.

As shown in fig. 1 to 4, the multi-channel integrated device for a gas detection alarm according to the preferred embodiment of the present utility model includes a cabinet body 1, a front door panel 11 is provided in front of the cabinet body 1, and a display panel 111 is provided on the front door panel 11. The cabinet body 1 rear is equipped with back door plant 12, be equipped with a plurality of passageway mounting panels 13 in the cabinet body 1, passageway mounting panel 13 is on a parallel with the bottom surface of the cabinet body 1, be equipped with signal transfer module 14 on the passageway mounting panel 13, be equipped with a plurality of signal acquisition module 15 on the signal transfer module 14, signal acquisition module 15 passes through signal transfer module 14 and is connected with the gas detector electricity, one side that cabinet body 1 is close back door plant 12 is equipped with two power mounting panels 16, power mounting panel 16 is on a parallel with back door plant 12, power mounting panel 16 extends along the direction of height of cabinet body 1, power mounting panel 16 sets up respectively in cabinet body 1 width direction's both sides, be equipped with master control mounting panel 17 on the front door plant 11, be equipped with master control module 171 on the master control mounting panel 17, cabinet body 1 top is equipped with battery mounting panel 18, be equipped with the backup battery on the battery mounting panel 18. The top of the cabinet body 1 is provided with a top box 19, and a fan is arranged in the top box 19.

As shown in fig. 5, the signal transfer module 14 includes a transfer circuit board 141, a plurality of external interface terminals 142 are disposed at the top end of the transfer circuit board 141, a plurality of limiting blocks 143 are disposed at the bottom end of the transfer circuit board 141, a plurality of golden finger connectors 144 are disposed between the external interface terminals 142 and the limiting blocks 143, and the signal acquisition module 15 is disposed on the golden finger connectors 144.

As shown in fig. 6, the signal acquisition module 15 includes a module base 151, a module housing 152 is disposed on the module base 151, the module housing 152 includes an upper housing and a lower housing, and a terminal plate 153 is disposed in the module housing 152.

As shown in fig. 5 and 6, the module base 151 is mounted on the adapting circuit board 141 by a bolt assembly, the top and the bottom of the module base 151 are respectively provided with protruding clamping rails 154, the top and the bottom of the module housing 152 are respectively provided with clamping grooves 155, the top and the bottom of the module housing 152 are respectively provided with elastic clamping springs 156, and the top and the bottom of the module base 151 are provided with buckling grooves 157 matched with the elastic clamping springs 156.

As shown in fig. 7, the main control module 171 is electrically connected with the display module 21, the industrial personal computer 22, the signal processing module 23 and the reservation module 24 through 485 interfaces, the signal processing module 23 is electrically connected with the signal switching module 14, the terminal plate 153 is electrically connected with the signal switching module 14, the relay switching module 25 is electrically connected with the signal processing module 23, and the relay switching module 25 is electrically connected with the plurality of relay plates 26.

The main control module 171 is responsible for the operation of the overall GDS system, and all read/control commands are issued by the main control module 171. The signal processing module 23 is responsible for intensively processing the concentration information of the terminal board 153 while issuing the switching value to the relay board 26. The signal transfer module 14 can be connected to at most 5 terminal boards 153 or relay boards 26 for signal transfer. The terminal plates 153 are signal acquisition circuits and are responsible for acquiring the concentration of the detectors, and each terminal plate 153 can be connected with 8 detectors. The relay boards 26 are relay control circuits and are responsible for controlling fire-fighting equipment, and each relay board 26 can be connected with 8 fire-fighting equipment.

The main control module 171 has 1 STM32F407 main control chip, 1 memory chip, 1 buzzer, 1 path 485 input, and 4 path 485 output. The STM32F407 master control chip is responsible for the operation of the whole master control module 171; the storage chip is responsible for storing the positions and occurrence time of alarms and faults in the whole system; when an alarm or a fault is sent in the system, the buzzer gives an alarm; 485 input is responsible for collecting the concentration of each detector after the signal processing module 23 processes; the 485 output is responsible for sending the data of the whole system to the display module 21, the DCS, the graphic display and other devices.

The display module 21 is provided with 1 STM32F407 main control chip, 6 keys, 7 LED indicator lamps, 1 serial screen interface and 1 path 485 input. The STM32F407 master control chip is responsible for the operation of the whole display module 21 and controls the peripherals such as LEDs, serial ports and the like; the keys are combined with the serial port screen to realize a human-computer interaction interface; the LED indicator lamp is used for indicating the current running state of the system; 485 input is responsible for receiving data from the main control module 171 for display.

The signal processing module 23 is provided with 1 STM32F407 main control chip, 12 LED indicator lamps, 4 paths of 485 inputs and 2 paths of 485 outputs. The STM32F407 master control chip is responsible for the operation of the whole signal module; the 12 LED indicator lamps are responsible for indicating 485 communication states and flash during communication; the 4-way 485 input is responsible for collecting data of the signal switching module 14; each path is connected with 2 signal transfer modules 14 in a matching way; the 1-way 485 output is responsible for packaging and sending the data of the signal processing module 23 to the main control module 171; the 1-way 485 output is responsible for distributing the switching value information to the respective relay transfer modules 25.

The signal transfer module 14 is provided with 1 main control chip, 5 paths of golden finger connector 144 interfaces, 10 paths of signal receiving and transmitting interfaces, 1 path of 485 input and 1 path of 485 output. The main control chip is responsible for the operation of the whole signal switching module 14; the 10-channel signal receiving and transmitting interface is responsible for receiving 4-20mA signals of the detector and transmitting the signals to the terminal board 153 through the interface of the golden finger connector 144, the signal receiving and transmitting interface is divided into a detector interface and a switching value interface, the detector interface is provided with V, S and G terminals, wherein V and G are used for supplying power to the detector, S is a 4-20mA current signal sent by the detector, and the switching value interface is used for outputting a relay; 485 input is responsible for reading the terminal board 153 data and the relay board 26 data; the 485 output is responsible for sending the data packets to the signal processing module 23.

The terminal board 153 has 1 main control chip, 1 way normal trouble LED pilot lamp, 8 way passageway connection LED pilot lamps, 8 way detector interface and 1 way 485 output. The main control chip is responsible for the operation of the whole terminal plate 153, converts the 4-20mA signals received by the detectors into voltage signals, and obtains the gas concentration value detected by each detector through a filtering algorithm; the normal fault LED indicator lights are lighted when the fault exists, otherwise, the normal LED indicator lights are lighted; the channel connection LED indicator lamp corresponds to the channel connection, when the channel is connected, the LED is turned on, and when the channel is not connected, the LED is turned off; the detector interface is provided with three terminals V, S and G, wherein V and G supply power for the detector, and S is a 4-20mA current signal sent by the detector; the 485 output packages and sends the concentration values detected by the 8 detectors to the switching module.

The relay board is provided with 1 main control chip, 1 path of operation LED indicator lamp, 8 paths of switching value LED indicator lamps, 8 paths of relay output and 1 path of 485 input. The main control chip is responsible for the operation of the whole relay board, 485 inputs and receives control instructions from the signal board, the corresponding relay is opened or closed according to the instructions, when the relay is opened, the switching value LED is on, and when the relay is closed, the switching value LED is off; and the running LED indicator lamp is used for indicating the working state.

The power supply module is composed of 10 24V switching power supplies with 350W power and two 24V switching power supplies with 150W power, and is fixed in the shell, led out by a power line, connected to the circuit board through a 2P terminal and fixed by screws.

The device can be connected with 320 4-20mA signal detectors and 1000 485 signal detectors in a matching way, and can control the output of 80 relays. The signal processing module is used for collecting terminal board data in 4 paths, each path 485 of data is input to collect 10 pieces of terminal board data, and each terminal board collects 8 pieces of detector data. So the number of adaptable probes is 10×4×8=320. The signal processing module is provided with 1 channel 485 in total for outputting relay control instructions, 10 relay boards can be controlled, and each relay board controls 8 channels of relays. The final controllable relay number is 10×8=80.

The device carries out hierarchical management, and has six grades: the display module, the main control module, the signal processing module, the signal switching module, the signal acquisition module/relay control module and the detector are used for greatly improving the reaction speed and accuracy of the GDS system, and rapidly responding to the detector and accurately controlling the relay. When using conventional 485 bus control, when the system is connected with 1000 detectors and 80 relays, when the concentration of a certain detector changes, the system needs to poll the detector to update data, and if 5 detectors are polled in 1s, the longest data update time is 1000/5=200s. And each 485 bus of the system is connected with 64 detectors, data is updated once every 0.2 seconds, the longest data updating time is 64/5=13 s, and compared with 200s required by conventional 485 bus control, the speed is greatly improved.

The device is innovated in the connection of the internal module, the terminal board and the relay board are connected with the switching module in a connection mode of the golden finger, and the golden finger connector is fastened through certain structural assembly.

The above detailed description is merely illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model. Various modifications, substitutions and improvements of the technical scheme of the present utility model will be apparent to those skilled in the art from the description and drawings provided herein without departing from the spirit and scope of the utility model. The scope of the utility model is defined by the claims.

Claims

1. The utility model provides a gas detection alarm multichannel integrated device, its characterized in that, including the cabinet body (1), the place ahead of the cabinet body (1) is equipped with preceding door plant (11), cabinet body (1) rear is equipped with back door plant (12), be equipped with a plurality of passageway mounting panels (13) in the cabinet body (1), passageway mounting panel (13) are on a parallel with the bottom surface of the cabinet body (1), be equipped with signal switching module (14) on passageway mounting panel (13), be equipped with a plurality of signal acquisition module (15) on signal switching module (14), signal acquisition module (15) are connected with the gas detector electricity through signal switching module (14), one side that cabinet body (1) is close back door plant (12) is equipped with two power mounting panels (16), power mounting panel (16) are on a parallel with back door plant (12), power mounting panel (16) are along the direction of height of the cabinet body (1) extension, power mounting panel (16) set up respectively in the both sides of cabinet body (1) width direction, be equipped with master control mounting panel (17) on preceding door plant (11), master control module (17) are equipped with battery mounting panel (18), be equipped with on master control module (171), battery mounting panel (18) are equipped with on the top.

2. The gas detection alarm multichannel integrated device according to claim 1, wherein the signal switching module (14) comprises a switching circuit board (141), a plurality of external interface terminals (142) are arranged at the top end of the switching circuit board (141), a plurality of limiting blocks (143) are arranged at the bottom end of the switching circuit board (141), a plurality of golden finger connectors (144) are arranged between the external interface terminals (142) and the limiting blocks (143), and the signal acquisition module (15) is arranged on the golden finger connectors (144).

3. The multi-channel integrated device of a gas detection alarm according to claim 2, wherein the signal acquisition module (15) comprises a module base (151), a module housing (152) is arranged on the module base (151), the module housing (152) comprises an upper shell and a lower shell, and a terminal plate (153) is arranged in the module housing (152).

4. A gas detection alarm multichannel integrated device according to claim 3, characterized in that the module base (151) is mounted on the switching circuit board (141) by a bolt assembly, the top and the bottom of the module base (151) are respectively provided with protruding clamping rails (154), the top and the bottom of the module housing (152) are respectively provided with clamping grooves (155), the top and the bottom of the module housing (152) are provided with elastic snap springs (156), and the top and the bottom of the module base (151) are provided with buckling grooves (157) matched with the elastic snap springs (156).

5. The multi-channel integrated device of the gas detection alarm according to claim 4, wherein the main control module (171) is electrically connected with a display module (21), an industrial personal computer (22), a signal processing module (23) and a reservation module (24), the signal processing module (23) is electrically connected with the signal switching module (14), the terminal board (153) is electrically connected with the signal switching module (14), the relay switching module (25) is electrically connected with the signal processing module (23), and the relay switching module (25) is electrically connected with a plurality of relay boards (26).

6. The multi-channel integrated device of the gas detection alarm according to claim 1, wherein a top of the cabinet body (1) is provided with a top box (19), and a fan is arranged in the top box (19).