CN215812661U - Gas detection system - Google Patents
Gas detection system Download PDFInfo
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- CN215812661U CN215812661U CN202121994730.XU CN202121994730U CN215812661U CN 215812661 U CN215812661 U CN 215812661U CN 202121994730 U CN202121994730 U CN 202121994730U CN 215812661 U CN215812661 U CN 215812661U
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- module
- exhaust fan
- main control
- gas
- electrically connected
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- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 238000005070 sampling Methods 0.000 claims abstract description 4
- 238000013016 damping Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 2
- 238000004880 explosion Methods 0.000 abstract description 8
- 231100000572 poisoning Toxicity 0.000 abstract description 2
- 230000000607 poisoning effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 68
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 20
- 239000001257 hydrogen Substances 0.000 description 18
- 229910052739 hydrogen Inorganic materials 0.000 description 18
- 231100001261 hazardous Toxicity 0.000 description 15
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 14
- 239000003570 air Substances 0.000 description 9
- 239000002360 explosive Substances 0.000 description 5
- 208000032953 Device battery issue Diseases 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000002341 toxic gas Substances 0.000 description 3
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The utility model discloses a gas detection alarm system, which comprises: the gas detector comprises a shell, a gas sampling port is arranged on the shell, a sensor module, a display module, an alarm module and a main control module are arranged in the shell, the sensor module comprises a gas concentration sensing module and an ambient temperature sensing module, the sensor module is electrically connected with the main control module, and the main control module is respectively electrically connected with the display module and the alarm module; the system further comprises a first exhaust fan and a first baffle plate covering the first exhaust fan, wherein the first exhaust fan is electrically connected with the main control module through the first baffle plate. When the concentration of the specific gas is detected to exceed the preset value, the alarm module is controlled to send out an alarm signal, and the corresponding gas is eliminated through the exhaust fan, so that accidents such as explosion or personnel poisoning are prevented to the maximum extent.
Description
Technical Field
The utility model relates to the technical field of gas detection, in particular to a gas detection system.
Background
Along with the rapid development of social economy, the living standard of people is continuously improved, the safety consciousness of people is also continuously increased, corresponding fire fighting equipment is also continuously updated, and in order to reduce the damage of fire fighters and the loss caused by fire, various detection systems aiming at hazardous gas are developed at present, so that the detection and the alarm operation can be timely carried out when the hazardous gas is generated, and the occurrence of accidents is avoided.
Numerous studies have shown that the cleaning formulation fire suppression systems do not control or impede the exothermic chemical reactions of the lithium ion battery itself. In particular, damage to the cell typically occurs inside the cell holder, and the cell releases hydrogen and a large amount of heat during damage, followed by release of gases such as methane and ethane. At this time, the explosive gas having a high temperature is immediately exploded upon being combined with the external oxygen-enriched air.
Therefore, there is a need for a detection alarm system for hazardous gases that can provide real-time detection of gas concentration and, at the same time, automatically alarm and dissipate the gas when the gas concentration reaches a preset value, for battery charging rooms and other areas where power batteries and stationary batteries are stored, or other confined spaces where flammable, explosive or toxic gases may accumulate.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the present invention is directed to solving the above problems. It is an object of the present invention to provide a hazardous gas detection alarm system that solves any of the above problems. Specifically, the present invention provides an automatic and accurate hazardous gas detection and alarm system, which can detect and remove hazardous gas in time before reaching a lower hazardous concentration and/or temperature, so as to solve the problems of the prior art, such as untimely detection and dissipation of hazardous gas. In addition, the utility model also provides a controlled design of the exhaust fan and the baffle plate, which can reduce the electric power cost of the system and ensure that the normal operation of the temperature control equipment such as an external air conditioner, a heater and the like is not influenced.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides a gas detection system, which comprises a gas detector, wherein the gas detector comprises a shell, a gas sampling port is arranged on the shell, a sensor module, an alarm module and a main control module are arranged in the shell, the sensor module comprises a gas concentration sensing module and an ambient temperature sensing module, the sensor module is electrically connected with the main control module, and the main control module is electrically connected with the alarm module;
the system still includes first exhaust fan and cover the first baffle of first exhaust fan, wherein, first exhaust fan with first baffle all is connected with main control module electricity, the outside of first exhaust fan has the slip ring that is used for the wall-hanging installation, the inside of first exhaust fan has motor drive's damping device.
Preferably, the system further comprises a second exhaust fan and a second baffle plate covering the second exhaust fan, wherein the second exhaust fan and the second baffle plate are both electrically connected with the main control module, a sliding ring for wall-mounted installation is arranged outside the second exhaust fan, and a damping device driven by a motor is arranged inside the second exhaust fan.
Preferably, the second exhaust fan and the first exhaust fan are oppositely disposed with respect to each other such that the second exhaust fan provides a counter flow in a direction opposite to the flow generated by the first exhaust fan.
Preferably, the gas detector further comprises a display module electrically connected to the main control module to receive the control signal and output a display signal. Wherein the display signal may include a gas concentration and an ambient temperature.
Preferably, the alarm module comprises:
the sound alarm unit is electrically connected with the main control module to receive the control signal and output a sound alarm signal;
and the light alarm unit is electrically connected with the main control module to receive the control signal and output a light alarm signal.
Preferably, the system further comprises a comparison module, wherein the comparison module presets a gas concentration threshold and is electrically connected to the gas concentration sensing module to receive a detection signal and output a comparison signal; the main control module is also electrically connected to the comparison module to receive the comparison signal and output a control signal.
Preferably, the system further comprises a junction box, a control panel and a cable, wherein the junction box is connected with the housing for mounting the gas detector at a designated position; the cable connects the control panel and the gas detector.
Compared with the prior art, the utility model has the following beneficial effects:
the gas detection system can detect a very small amount of hydrogen and other gases and detect the temperature of the environment, so that the system can detect and remove inflammable and explosive gases or toxic gases in time before the flammable and explosive gases or the toxic gases reach lower dangerous concentration and/or temperature, thereby preventing accidents such as explosion or personnel poisoning and the like to the maximum extent.
In addition, based on the controlled design of air discharge fan and baffle, the air discharge fan need not to last the operation, and the baffle keeps closing when the air discharge fan is in the closed condition for the normal operation of temperature control equipment such as air conditioner and heater is not influenced, greatly reduced corresponding cost.
Further, two or more exhaust fans are arranged oppositely relative to each other, so that at least one exhaust fan provides reverse airflow in the direction opposite to the airflow generated by at least another exhaust fan, and external ambient air is forced into the monitored area, so that the dissipation of dangerous gas in the monitored area is promoted, and the possibility of accidents is greatly reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 schematically illustrates a connection circuit diagram of the system of the present invention;
FIG. 2 schematically illustrates another connection circuit diagram of the system of the present invention;
FIG. 3 schematically illustrates a gas detector of the present invention;
fig. 4 is a schematic view schematically showing the construction of an exhaust fan according to the present invention;
fig. 5 is a view schematically showing the internal structure of the gas detector of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
One embodiment of the utility model comprises:
as shown in fig. 1, the present invention provides a gas detection system including a gas detector 1 and a first exhaust fan 2, the gas detector 1 being electrically connected to the first exhaust fan 2. Wherein, as shown in fig. 3 and 5, the gas detector 1 includes a housing 5, a gas sampling port 6 is provided on the housing, a sensor module 12, an alarm module 7 and a main control module 11 are provided in the housing, the sensor module 12 includes a gas concentration sensing module 14 and an ambient temperature sensing module 15, the sensor module 12 is electrically connected with the main control module 11, and the main control module 11 is electrically connected with the alarm module 7.
The alarm module 7 further comprises a sound alarm unit and a light alarm unit, wherein the sound alarm unit is electrically connected to the main control module 11 to receive a control signal and output a sound alarm signal; the light alarm unit is electrically connected to the main control module 11 to receive the control signal and output a light alarm signal.
The gas detector further comprises a display module 8, and the display module 8 is electrically connected to the main control module 11 to receive a control signal and output a display signal.
As shown in fig. 4, the first exhaust fan 2 has a first shutter 9, wherein the first shutter 9 remains closed when the first exhaust fan 2 is in a closed state; when the first exhaust fan 2 is in the activated state, the first flap 9 is set to the open state. The first exhaust fan 2 also has on its exterior a slip ring 10 for wall-mounted mounting and on its interior a motor-driven damping device (not shown).
Specifically, with reference to fig. 1 and 4, when it is detected that the gas concentration reaches a preset value, the main control module gives an alarm through the alarm module, and outputs a control signal to activate the first exhaust fan 2 and the first flap 9 to maintain the open state, so as to dissipate the detected gas and send a signal to the relevant personnel. Furthermore, when the monitored area is unsafe, the gas detector will also issue an alarm to prevent outside personnel from entering the monitored area.
As shown in fig. 2, the gas detection alarm system of the present invention further includes an additional gas detector 3, and a second exhaust fan 4 and a second baffle (not shown, which has the same structure as the first baffle 9 of the first exhaust fan 2) covering the second exhaust fan 4, both the second exhaust fan 4 and the second baffle being electrically connected to the main control module, the second exhaust fan 4 having a sliding ring (not shown) for wall-hanging installation on the outside, and the second exhaust fan having a motor-driven damper (not shown) on the inside. Wherein, when the second exhaust fan 4 is in the off state, the second shutter remains closed; when the second exhaust fan 4 is in the activated state, the second shutter is set to the open state.
Wherein the second exhaust fan 4 may have the same structure as the first exhaust fan 2.
Specifically, when the gas concentration is detected to reach the preset value, the main control module gives an alarm through the alarm module and outputs a control signal to activate the second exhaust fan 4 and the second baffle to keep an open state, so that the detected gas is dissipated.
The second exhaust fan 4 and the first exhaust fan 2 are arranged oppositely relative to each other, so that the second exhaust fan 4 provides reverse airflow in the direction opposite to the airflow direction generated by the first exhaust fan 2, and external ambient air is forced into a monitored area, and dissipation of dangerous gas in the monitored area is promoted.
The system may further comprise a plurality of gas detectors, wherein the plurality of gas detectors are connected to one or more exhaust fans, and wherein the plurality of gas detectors are capable of detecting the concentration of the same or different gases and the ambient temperature simultaneously.
Multiple gas detectors may be placed at different locations of the detection zone to provide comprehensive detection results.
The system can also comprise more than two exhaust fans, wherein the exhaust fans can also comprise an audio alarm unit and/or a light alarm unit.
Another embodiment of the utility model comprises:
the gas detector 1 is a hydrogen gas detector for continuously detecting the concentration of hydrogen gas. The hydrogen detector can be used in both AC and DC power supply modes, and is integrated with an alarm device capable of providing an alarm warning of 80db and an LED display interface capable of displaying the detection state in real time and continuously.
The first exhaust fan 2 is set to be in an off state by default and receives a transmission signal from the main control module in real time. When the hydrogen concentration is detected to reach the preset value, the main control module gives an alarm through the alarm module and activates the first exhaust fan 2 to dissipate the detected gas.
The size of the hydrogen detector is preferably 7 "(length) 4-3/4" (width) 2-1/4 "(height).
The hydrogen detector is provided with a high sensitivity and high stability solid state sensor that provides protection by monitoring in real time the hydrogen concentration level in the battery charging chamber or other areas where power cells and stationary batteries are stored. The data indicates that the lead acid battery being charged releases hydrogen gas after reaching 80% of the charge point. These hydrogen gases are mixed with air at concentrations of 4% to 75% and present an explosion hazard, either sparking or hot surfaces detonating them. To this end, the hydrogen detector of this embodiment operates the alarm device and the first exhaust fan before detecting that the hydrogen concentration reaches the lower explosion limit of 4%, thereby providing a warning and promoting the dissipation of hydrogen in the area.
Another embodiment of the utility model comprises:
the gas detector 1 is a battery failure detector for continuously detecting the concentration of hydrogen, methane, ethane and carbon monoxide. The battery fault detector can be used for an alternating current power supply mode or a direct current power supply mode, is integrated with an alarm device and an LED display interface, and is respectively used for providing alarm warning and displaying detection states.
The size of the battery fault detector is preferably 7 "(long) 4-3/4" (wide) 2-1/4 "(high).
The battery failure detector is provided with a high sensitivity and high stability solid state sensor that provides protection by monitoring the relevant gas concentration levels in real time in the battery charging chamber or other areas where power cells and stationary batteries are stored. The data show that under a runaway condition, the lithium ion battery will release hydrogen first, and when the concentration of hydrogen in the air reaches 4%, either sparks or hot surfaces will cause an explosion. To this end, the battery failure detector turns on the first exhaust fan when detecting that the hydrogen concentration reaches 0.25%, or the temperature reaches 135 degrees fahrenheit. Thus, the battery failure detector described in this embodiment operates the alarm device and the first exhaust fan before detecting that the hydrogen concentration reaches the lower explosion limit of 4%, thereby providing a warning and facilitating the dissipation of hydrogen within the area.
Another embodiment of the utility model comprises:
the gas detector 1 is a hazardous gas detector for continuously detecting the concentration of gases including methane, natural gas, propane and hydrogen. The hazardous gas detector can be used in an alternating current power supply mode, is integrated with an alarm device and an LED display interface, and is respectively used for providing alarm warning and displaying detection states.
The hazardous gas detector is preferably 5"3/4 (length) 3"1/4 (width) 2"3/8 (height).
The hazardous gas detector is provided with a high sensitivity and high stability solid state intrinsically safe sensor and packaging circuitry, and with a field replaceable pre-calibrated sensor module. The hazardous gas detector provides protection by monitoring the relevant gas concentration levels in real time in the battery charging room or other area where the power and stationary batteries are stored.
Among these, methane concentrations in air of 5% to 15% pose an explosive risk, both sparking and hot surface causing explosions. To this end, the alarm preset value of the hazardous gas detector of this embodiment is set to 1% so that the hazardous gas detector operates the alarm device and the first exhaust fan before detecting that the methane concentration reaches the lower explosion limit of 5%, thereby providing a warning and promoting the dissipation of methane within the area.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A gas detection system comprises a gas detector, wherein the gas detector comprises a shell, a gas sampling port is formed in the shell, a sensor module, an alarm module and a main control module are arranged in the shell, the sensor module comprises a gas concentration sensing module and an ambient temperature sensing module, the sensor module is electrically connected with the main control module, and the main control module is electrically connected with the alarm module;
its characterized in that, the system still includes first exhaust fan and cover the first baffle of first exhaust fan, wherein, first exhaust fan with first baffle all is connected with main control module electricity, the outside of first exhaust fan has the slip ring that is used for the wall-hanging installation, the inside of first exhaust fan has motor drive's damping device.
2. The system of claim 1, further comprising a second exhaust fan and a second baffle covering the second exhaust fan, wherein the second exhaust fan and the second baffle are both electrically connected to the main control module, wherein the second exhaust fan has a slip ring on an exterior for wall-mount installation, and wherein the second exhaust fan has a motor-driven damping device on an interior.
3. The system of claim 2, wherein the second exhaust fan and the first exhaust fan are oppositely disposed with respect to each other.
4. The system of claim 1, wherein the alarm module comprises:
the sound alarm unit is electrically connected with the main control module to receive the control signal and output a sound alarm signal;
and the light alarm unit is electrically connected with the main control module to receive the control signal and output a light alarm signal.
5. The system of claim 1, wherein the gas detector further comprises a display module electrically connected to the main control module to receive control signals and output display signals.
6. The system of claim 1, further comprising a comparison module, wherein the comparison module presets a gas concentration threshold and is electrically connected to the gas concentration sensing module to receive the detection signal and output a comparison signal; the main control module is also electrically connected to the comparison module to receive the comparison signal and output a control signal.
7. The system of claim 1, further comprising a junction box, a control panel, and a cable, wherein the junction box is connected to the housing for mounting the gas detector at a designated location; the cable connects the control panel and the gas detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121994730.XU CN215812661U (en) | 2021-08-24 | 2021-08-24 | Gas detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121994730.XU CN215812661U (en) | 2021-08-24 | 2021-08-24 | Gas detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215812661U true CN215812661U (en) | 2022-02-11 |
Family
ID=80150409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121994730.XU Active CN215812661U (en) | 2021-08-24 | 2021-08-24 | Gas detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215812661U (en) |
-
2021
- 2021-08-24 CN CN202121994730.XU patent/CN215812661U/en active Active
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