CN219302400U - Detection device for shielding gas of pulverized coal preparation system - Google Patents
Detection device for shielding gas of pulverized coal preparation system Download PDFInfo
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- CN219302400U CN219302400U CN202320065246.1U CN202320065246U CN219302400U CN 219302400 U CN219302400 U CN 219302400U CN 202320065246 U CN202320065246 U CN 202320065246U CN 219302400 U CN219302400 U CN 219302400U
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Abstract
The utility model discloses a device for detecting protective gas of a pulverized coal preparation system, which comprises two groups of gas cylinder frame mechanisms, wherein one group is used for controlling the introduction of carbon dioxide gas, the other group is used for controlling the introduction of nitrogen gas, a concentration sensor is arranged in a pulverized coal preparation workshop to monitor the concentration of carbon monoxide, a first electric control valve and a second electric control valve are respectively arranged on the two groups of gas cylinder frame mechanisms, a communicating pipe is arranged on a supporting frame, a connecting frame is arranged below the supporting frame through a weighing mechanism, a gas storage bottle is arranged below the connecting frame, and a plurality of groups of gas storage bottles are arranged; according to the utility model, the weighing mechanism is used for hanging the gas cylinder for gas supply, and the weight change of the gas cylinder is monitored, so that the purpose of monitoring the gas cylinder gas quantity is achieved, when the residual gas quantity is insufficient, the gas cylinder is timely alarmed and prompted to be replaced, the potential safety hazard caused by gas supply interruption cannot occur, and meanwhile, the potential safety hazard of carbon monoxide and coal dust explosion is greatly reduced by introducing carbon dioxide gas after introducing nitrogen protective gas.
Description
Technical Field
The utility model relates to the technical field of coal dust production, in particular to a detection device for shielding gas of a coal dust preparation system.
Background
The coal powder preparation workshop belongs to inflammable and explosive places, and although main equipment adopts effective measures during manufacture, due to the characteristics of different coal qualities, the system is inevitably dangerous of accidental combustion and explosion, wherein explosion factors mainly comprise the concentration of coal powder, the content of CO and oxygen in a gas mixture, the serious exceeding of temperature and other factors, and explosion can occur when exposed fire sources exist;
the traditional device dilutes CO2 gas after CO concentration detection, but the residual gas quantity of the gas tank is required to be checked manually at regular time when CO2 is supplied, time is wasted, the gas supply interruption phenomenon is often caused by untimely gas tank inspection, a certain potential safety hazard is caused, meanwhile, the phenomenon that open flame explosion cannot occur to coal dust can not be ensured only by CO2 gas dilution, and therefore, the utility model provides a device for detecting the protective gas of a coal dust preparation system, and the device is used for solving the problems in the prior art.
Disclosure of Invention
Aiming at the problems, the utility model aims to provide a device for detecting the protective gas of the pulverized coal preparation system, which uses a weighing mechanism to hang a gas cylinder for gas supply and monitors the weight change of the gas cylinder, so as to achieve the aim of monitoring the gas cylinder gas quantity, timely alarm and prompt the gas cylinder replacement when the residual gas quantity is insufficient, avoid potential safety hazards caused by gas supply interruption, and greatly reduce the potential safety hazards of carbon monoxide and pulverized coal explosion by introducing carbon dioxide gas after introducing nitrogen protective gas.
In order to achieve the purpose of the utility model, the utility model is realized by the following technical scheme: the utility model provides a coal dust preparation system shielding gas's detection device, includes monitoring system and gas cylinder frame mechanism, gas cylinder frame mechanism is equipped with two sets of, and one set of is used for controlling to let in carbon dioxide gas, and another set of control lets in nitrogen gas, monitoring system includes concentration sensor, first automatically controlled valve and second automatically controlled valve, concentration sensor sets up and monitors carbon monoxide concentration in the coal dust preparation workshop, first automatically controlled valve and second automatically controlled valve set up respectively on two sets of gas cylinder frame mechanism, control the second automatically controlled valve and let in carbon dioxide gas after letting in nitrogen gas shielding gas through concentration sensor monitoring result again, gas cylinder frame mechanism includes braced frame, communicating pipe, weighing mechanism, link and gas bomb, be equipped with communicating pipe on the braced frame, communicating pipe communicates into in the coal dust preparation workshop, the braced frame below is equipped with the link through weighing mechanism, the link bomb is equipped with the multiunit, the gas bomb is equipped with the multiunit, freely controls between the gas bomb.
The further improvement is that: the monitoring system further comprises a controller, the concentration sensor, the first electric control valve, the second electric control valve and the weighing mechanism are electrically connected with the controller, and the controller controls the opening and closing of the first electric control valve and the second electric control valve and the alarm prompt of the alarm lamp in the weighing mechanism.
The further improvement is that: the weighing mechanism comprises a hook weighing device, a hanging hook and an alarm lamp, wherein the hook weighing device is arranged below the supporting frame, the hanging hook is arranged below the hook weighing device, and the lower part of the hanging hook is connected with the connecting frame hook.
The further improvement is that: the gas cylinder weighing device comprises a supporting frame, wherein a digital display is arranged on the supporting frame and is electrically connected with a hook weighing device, gas cylinder weight data are displayed in real time, the hook weighing device and a gas cylinder are correspondingly provided with a plurality of groups, and alarm lamps and the hook weighing device are correspondingly arranged in number.
The further improvement is that: the first electric control valve and the second electric control valve are respectively communicated with communicating pipes in the two groups of gas cylinder frame mechanisms through hoses, and the lower part of the connecting frame is in threaded connection with the gas storage cylinder.
The beneficial effects of the utility model are as follows: according to the utility model, the weighing mechanism is used for hanging the gas cylinder for gas supply, and the weight change of the gas cylinder is monitored, so that the purpose of monitoring the gas cylinder gas quantity is achieved, when the residual gas quantity is insufficient, the gas cylinder is timely alarmed and prompted to be replaced, the potential safety hazard caused by gas supply interruption cannot occur, meanwhile, the potential safety hazard of carbon monoxide and coal dust explosion is greatly reduced by introducing the nitrogen to protect gas, and the practicability is good.
Drawings
FIG. 1 is a diagram of the overall architecture of the present utility model.
FIG. 2 is a schematic view of a cylinder frame mechanism according to the present utility model.
Wherein: 1. a concentration sensor; 2. a first electrically controlled valve; 3. a second electrically controlled valve; 4. a support frame; 5. a communicating pipe; 6. a connecting frame; 7. a gas cylinder; 8. a controller; 9. a hook weighing device; 10. a hanging hook; 11. an alarm lamp; 12. a digital display.
Detailed Description
The present utility model will be further described in detail with reference to the following examples, which are only for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.
According to the detection device of the protective gas of the pulverized coal preparation system, shown in fig. 1 and 2, the detection device comprises a monitoring system and a gas cylinder frame mechanism, wherein the gas cylinder frame mechanism is provided with two groups, one group is used for controlling the introduction of carbon dioxide gas, the other group is used for controlling the introduction of nitrogen gas, the monitoring system comprises a concentration sensor 1, a first electric control valve 2 and a second electric control valve 3, the concentration sensor 1 is arranged in a pulverized coal preparation workshop for monitoring the concentration of carbon monoxide, the first electric control valve 2 and the second electric control valve 3 are respectively arranged on the two groups of the gas cylinder frame mechanism, the second electric control valve is controlled to be introduced with the nitrogen protective gas through the monitoring result of the concentration sensor, the first electric control valve is controlled to be introduced with the carbon dioxide gas, the gas cylinder frame mechanism comprises a supporting frame 4, a communicating pipe 5, a weighing mechanism, a connecting frame 6 and a gas storage cylinder 7, the communicating pipe 5 is arranged on the supporting frame 4, the lower part of the supporting frame 4 is provided with the connecting frame 6 through the weighing mechanism, the lower part of the connecting frame 6 is provided with the gas storage cylinder 7, and the gas storage cylinder 7 is provided with a plurality of groups, and the free control between the plurality of groups of gas storage cylinders is switched.
The monitoring system further comprises a controller 8, wherein the concentration sensor 1, the first electric control valve 2, the second electric control valve 3 and the weighing mechanism are electrically connected with the controller 8, and the controller controls the opening and closing of the first electric control valve and the second electric control valve and the alarm prompt of the alarm lamp in the weighing mechanism.
The weighing mechanism comprises a hook weighing device 9, a hanging hook 10 and an alarm lamp 11, wherein the hook weighing device 9 is arranged below the supporting frame 4, the hanging hook 10 is arranged below the hook weighing device 9, and the lower part of the hanging hook 10 is connected with the hook of the connecting frame 6.
The support frame 4 is provided with a digital display 12, the digital display 12 is electrically connected with the hook weighing device 9, gas cylinder weight data are displayed in real time, the hook weighing device 9 and the gas cylinder 7 are correspondingly provided with a plurality of groups, the alarm lamp 11 and the hook weighing device 9 are correspondingly arranged in number, and when the gas cylinder is insufficient in gas quantity, an alarm prompt is sent out, and other full gas cylinders are automatically switched to continue to ventilate.
The first electric control valve 2 and the second electric control valve 3 are respectively communicated with communicating pipes 5 in the two groups of gas cylinder frame mechanisms through hoses, and the lower part of the connecting frame 6 is in threaded connection with the gas storage cylinder 7.
When the concentration detection sensor detects that the concentration of carbon monoxide exceeds a critical value, the second electric control valve on the gas cylinder frame mechanism of the nitrogen is controlled by the controller to open and introduce the nitrogen, and then the first electric control valve on the gas cylinder frame mechanism of the carbon dioxide is controlled by the controller to open and introduce the carbon dioxide for dilution, when the residual gas of the gas cylinder on the gas cylinder frame mechanism or the carbon dioxide cylinder frame mechanism is insufficient, the alarm lamp in the weighing mechanism flashes to give an alarm to remind a worker to replace the gas cylinder in time, and the controller eliminates the alarm.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a detection device of buggy preparation system shielding gas which characterized in that: including monitoring system and gas cylinder frame mechanism, gas cylinder frame mechanism is equipped with two sets ofly, a set of carbon dioxide gas cylinder is laid to gas cylinder frame mechanism, another group gas cylinder frame mechanism lays nitrogen gas cylinder, monitoring system includes concentration sensor (1), first automatically controlled valve (2) and second automatically controlled valve (3), concentration sensor (1) set up monitoring carbon monoxide concentration in the buggy preparation workshop, first automatically controlled valve (2) and second automatically controlled valve (3) set up respectively two sets of on the gas cylinder frame mechanism, gas cylinder frame mechanism includes braced frame (4), communicating pipe (5), weighing machine constructs, link (6) and gas bomb (7), be equipped with communicating pipe (5) on braced frame (4), braced frame (4) below is equipped with link (6) through weighing machine constructs, link (6) below is equipped with gas bomb (7), gas bomb (7) are equipped with the multiunit.
2. The device for detecting shielding gas of a pulverized coal preparation system according to claim 1, wherein: the monitoring system further comprises a controller (8), and the concentration sensor (1), the first electric control valve (2), the second electric control valve (3) and the weighing mechanism are electrically connected with the controller (8).
3. The device for detecting shielding gas of a pulverized coal preparation system according to claim 1, wherein: the weighing mechanism comprises a hook weighing device (9), a suspension hook (10) and an alarm lamp (11), wherein the hook weighing device (9) is arranged below the supporting frame (4), the suspension hook (10) is arranged below the hook weighing device (9), and the lower part of the suspension hook (10) is connected with the hook of the connecting frame (6).
4. A device for detecting a shielding gas of a pulverized coal production system according to claim 3, wherein: the gas storage device is characterized in that a digital display (12) is arranged on the supporting frame (4), the digital display (12) is electrically connected with the hook weighing device (9), a plurality of groups of the hook weighing devices (9) and the gas storage bottle (7) are correspondingly arranged, and the alarm lamp (11) and the hook weighing devices (9) are correspondingly arranged in number.
5. The device for detecting shielding gas of a pulverized coal preparation system according to claim 1, wherein: the first electric control valve (2) and the second electric control valve (3) are respectively communicated with communicating pipes (5) in the two groups of gas cylinder frame mechanisms through hoses, and the lower part of the connecting frame (6) is in threaded connection with the gas storage cylinder (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320065246.1U CN219302400U (en) | 2023-01-10 | 2023-01-10 | Detection device for shielding gas of pulverized coal preparation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320065246.1U CN219302400U (en) | 2023-01-10 | 2023-01-10 | Detection device for shielding gas of pulverized coal preparation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219302400U true CN219302400U (en) | 2023-07-04 |
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ID=86954149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320065246.1U Active CN219302400U (en) | 2023-01-10 | 2023-01-10 | Detection device for shielding gas of pulverized coal preparation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219302400U (en) |
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2023
- 2023-01-10 CN CN202320065246.1U patent/CN219302400U/en active Active
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