CN210223007U - Centralized display system of gas alarm - Google Patents
Centralized display system of gas alarm Download PDFInfo
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- CN210223007U CN210223007U CN201921205848.2U CN201921205848U CN210223007U CN 210223007 U CN210223007 U CN 210223007U CN 201921205848 U CN201921205848 U CN 201921205848U CN 210223007 U CN210223007 U CN 210223007U
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Abstract
The utility model discloses a centralized display system of a gas alarm, which comprises a gas audible and visual alarm arranged at each monitoring point, wherein the alarm end signal of the gas audible and visual alarm is electrically connected to a centralized display controller; the centralized display controller is electrically connected to the centralized display panel; the centralized display panel comprises a panel body, wherein a plurality of rows of LED driving circuits are arranged on the inner side of the panel body; the output end of the LED driving circuit is electrically connected with an LED; the input end of the LED driving circuit is electrically connected with the centralized display controller; the centralized display controller is composed of a single chip microcomputer minimum system; each LED side is provided with a label card; the utility model discloses a display system is concentrated to coal gas alarm adopts on-the-spot warning and unified control to unite, and the warning is handled the ageing strong, reduces the emergence of potential safety hazard.
Description
Technical Field
The utility model relates to a coal injection workshop coal gas monitoring system, concretely relates to coal gas alarm centralized display system belongs to coal gas monitoring system technical field.
Background
Coal powder is injected into a blast furnace in a coal injection workshop of an iron works; the raw coal contains moisture, which can affect the quality of pulverized coal ground, and in order to improve the qualified rate of the pulverized coal and ensure that the moisture is controlled within 2 percent, the raw coal needs to be dried and heated by the waste gas of a hot blast stove so as to achieve the purpose of reducing the moisture. However, the waste gas of the hot blast stove contains a large amount of gas, and in addition, because a plurality of gas pipelines are arranged around the coal injection workshop, a fixed alarm needs to be installed in the workshop to monitor the gas content at any time, so that the staff can be ensured to work in a safe environment; however, coal injection plants are generally constructed in multiple floors, the range of the plants is too wide, the audible and visual alarm range is limited, the coal gas content conditions of all areas cannot be known in the first time, and therefore practical and effective precautionary measures cannot be taken in time, and great hidden dangers are brought to personnel safety of staff.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a display system is concentrated to gas alarm adopts on-the-spot warning and unified control to unite, and the warning is handled the ageing strong, reduces the emergence of potential safety hazard.
The utility model discloses a gas alarm centralized display system, which comprises a gas audible and visual alarm installed at each monitoring point, wherein the alarm end signal of the gas audible and visual alarm is electrically connected to a centralized display controller; the centralized display controller is electrically connected to the centralized display panel, on-site alarming is carried out through the gas audible and visual alarm, and centralized display alarming can be carried out through the centralized display controller when no person is handling the site or the area is relatively hidden.
Furthermore, a detection line is arranged at the input end of the sound-light alarm module of the gas sound-light alarm; the sense line is electrically connected to a comparator; the output end of the comparator is electrically connected to the minimum system of the single chip microcomputer; when the on-site gas audible and visual alarm gives an alarm, an alarm signal is sent to an alarm end, the audible and visual alarm module is electrified to give an alarm, and meanwhile, the audible and visual alarm module sends the signal to a comparator, and the comparison end of the comparator adjusts the potential through a sampling resistor, so that the comparator is switched after the sampling end of the comparator obtains high voltage, and when the gas audible and visual alarm is driven at a high level, the output end of the comparator needs to be connected with an inverter; therefore, when no signal exists, the comparator always outputs high level, and the level of the I/O port of the singlechip is not pulled down, so that the alarm cannot be triggered.
Furthermore, the centralized display panel comprises a panel body, wherein a plurality of rows of LED driving circuits are arranged on the inner side of the panel body; the output end of the LED driving circuit is electrically connected with an LED; the input end of the LED driving circuit is electrically connected with the centralized display controller; the centralized display controller is composed of a single chip microcomputer minimum system; each LED side is provided with a label card; and the minimum system of the singlechip selects to light a certain LED at the output end according to the I/O port of the signal.
Further, the centralized display panel is a display screen; the centralized display controller is a PLC; all the fixed gas alarms are displayed in a computer picture of a master control room in a centralized way, and a master controller can know the gas content condition of each area at any time, so that the working environment of the staff is ensured, and the personal safety is guaranteed.
Furthermore, the gas audible and visual alarm is arranged at the joint of a waste gas pipeline of a hot blast stove in a factory building and at each joint of a gas pipeline; and a plurality of gas audible and visual alarms are arranged above the waste gas pipeline and the gas pipeline of the hot blast stove in the plant at intervals.
Compared with the prior art, the utility model discloses a gas alarm centralized display system, through practical application, the staff just can know the gas content condition of each position in the master control room in the very first time, if the unusual situation appears can in time inform the post worker to handle, reduces the emergence of potential safety hazard, lets the staff can work under the safe environment; the automation level is also improved, the visualization is enhanced, and the labor intensity of workers is reduced.
Drawings
Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present invention.
Fig. 2 is a schematic view of the overall structure of embodiment 2 of the present invention.
Detailed Description
Example 1:
the gas alarm centralized display system shown in fig. 1 comprises a gas audible and visual alarm 1 arranged at each monitoring point, wherein the alarm end of the gas audible and visual alarm 1 is electrically connected with a centralized display controller 2 through signals; the centralized display controller 2 is electrically connected to the centralized display panel 3, and performs on-site alarm through a gas audible and visual alarm, and can perform centralized display alarm through the centralized display controller when no person is handling the site or in a relatively hidden area; the input end of the sound-light alarm module of the gas sound-light alarm 1 is provided with a detection line 4; the detection line 4 is electrically connected to a comparator 5; the output end of the comparator 5 is electrically connected to the minimum system of the single chip microcomputer; when the on-site gas audible and visual alarm gives an alarm, an alarm signal is sent to an alarm end, the audible and visual alarm module is electrified to give an alarm, and meanwhile, the audible and visual alarm module sends the signal to a comparator, and the comparison end of the comparator adjusts the potential through a sampling resistor, so that the comparator is switched after the sampling end of the comparator obtains high voltage, and when the gas audible and visual alarm is driven at a high level, the output end of the comparator needs to be connected with an inverter; therefore, when no signal exists, the comparator always outputs high level, and the level of the I/O port of the singlechip is not pulled down, so that the alarm cannot be triggered; the centralized display panel 3 comprises a panel body 31, wherein a plurality of rows of LED driving circuits 32 are arranged on the inner side of the panel body 31; the output end of the LED driving circuit 32 is electrically connected with an LED 33; the input end of the LED drive circuit 32 is electrically connected with the centralized display controller 2; the centralized display controller 2 is composed of a single chip microcomputer minimum system; a label card 34 is arranged on each LED 33; and the minimum system of the singlechip selects to light a certain LED at the output end according to the I/O port of the signal.
Example 2:
as shown in fig. 2, in the centralized display system of the gas alarm, the centralized display panel 3 is a display screen; the centralized display controller 2 is a PLC; all the fixed gas alarms are displayed in a computer picture of a master control room in a centralized way, and a master controller can know the gas content condition of each area at any time, so that the working environment of the staff is ensured, and the personal safety is guaranteed.
Wherein, the gas audible and visual alarm 1 is arranged at the joint of a waste gas pipeline of a hot blast stove in a factory building and at each joint of a gas pipeline; a plurality of gas audible and visual alarms 1 are arranged above the waste gas pipeline and the gas pipeline of the hot blast stove in the factory building at intervals.
The above-mentioned embodiment is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles of the present invention are included in the claims of the present invention.
Claims (5)
1. The utility model provides a display system is concentrated to gas alarm, is including installing in the gas audible-visual annunciator of each monitoring point which characterized in that: the alarm end signal of the gas audible and visual alarm is electrically connected to the centralized display controller; the centralized display controller is electrically connected to the centralized display panel.
2. The centralized display system of a gas alarm of claim 1, wherein: the centralized display panel comprises a panel body, wherein a plurality of rows of LED driving circuits are arranged on the inner side of the panel body; the output end of the LED driving circuit is electrically connected with an LED; the input end of the LED driving circuit is electrically connected with the centralized display controller; the centralized display controller is composed of a single chip microcomputer minimum system; and each LED side is provided with a label card.
3. The centralized display system of a gas alarm of claim 1, wherein: the centralized display panel is a display screen; the centralized display controller is a PLC.
4. The centralized display system of a gas alarm of claim 1, wherein: the input end of the sound-light alarm module of the gas sound-light alarm is provided with a detection line; the sense line is electrically connected to a comparator; and the output end of the comparator is electrically connected to the minimum system of the single chip microcomputer.
5. The centralized display system of a gas alarm of claim 1, wherein: the gas audible and visual alarm is arranged at the joint of a waste gas pipeline of a hot blast stove in a factory building and at each joint of a gas pipeline; and a plurality of gas audible and visual alarms are arranged above the waste gas pipeline and the gas pipeline of the hot blast stove in the plant at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921205848.2U CN210223007U (en) | 2019-07-29 | 2019-07-29 | Centralized display system of gas alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921205848.2U CN210223007U (en) | 2019-07-29 | 2019-07-29 | Centralized display system of gas alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210223007U true CN210223007U (en) | 2020-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921205848.2U Active CN210223007U (en) | 2019-07-29 | 2019-07-29 | Centralized display system of gas alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210223007U (en) |
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2019
- 2019-07-29 CN CN201921205848.2U patent/CN210223007U/en active Active
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