CN209928576U - Smoke detector based on temperature sensing and combustible gas detection functions - Google Patents
Smoke detector based on temperature sensing and combustible gas detection functions Download PDFInfo
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- CN209928576U CN209928576U CN201920537075.1U CN201920537075U CN209928576U CN 209928576 U CN209928576 U CN 209928576U CN 201920537075 U CN201920537075 U CN 201920537075U CN 209928576 U CN209928576 U CN 209928576U
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Abstract
The utility model provides a smoke detector based on temperature sensing and combustible gas detection functions, which comprises a smoke detector, a combustible gas sensor module, a temperature detection module and a data processing module, wherein the combustible gas sensor module, the temperature detection module and the alarm device are arranged in a labyrinth of the smoke detector; the alarm device is connected with the data processing module and adopts a two-stage alarm mode, and when the combustible gas sensor module detects that combustible gas exists in the environment, the alarm device starts an alarm mode; when the temperature-sensing smoke detector detects smoke, the alarm device starts a fire alarm mode. The utility model provides high smoke detector's response performance reduces the misstatement rate.
Description
Technical Field
The utility model belongs to the technical field of fire control conflagration is surveyed, specific theory has related to a smoke detector based on temperature sensing and combustible gas physical examination function.
Background
The combustible gas is a substance that can be ignited and is in a gaseous state at normal temperature and pressure. For example methane (CH)4) Hydrogen (H)2) Carbon monoxide (CO), ethane (C)2H6) And the like. The combustible gas has the general characteristics of gas, is mixed in a corresponding combustion-supporting medium according to a certain proportion, and can cause combustion or explosion under the action of an ignition source. The combustible gas is mainly characterized by flammability, and once a fire accident happens, huge property loss or casualties are caused.
The pipeline is easy to break because of corrosion, vibration or freezing of the underground combustible gas pipeline or the outdoor pipeline; the valve in the room on the user pipeline is not closed tightly, the valve rod and the screw thread are damaged and fail, or the valve is opened by mistake, so that the gas can escape. At present, the working principle of common smoke detectors in the market mostly adopts the infrared light scattering principle, and the change of smoke in the environment is mainly tested. Or a temperature measuring function is provided to detect the changes of smoke and temperature in the environment. However, conventional smoke detectors do not effectively detect the presence of smoke, and may cause leakage of combustible gas in the event of a fire.
In order to solve the above problems, people are always seeking an ideal technical solution.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the not enough of prior art to a smoke detector based on temperature sensing and combustible gas physical examination function is provided.
In order to realize the purpose, the utility model discloses the technical scheme who adopts is: a smoke detector based on temperature sensing and combustible gas detection functions comprises a smoke detector, a combustible gas sensor module, a temperature detection module and a data processing module, wherein the combustible gas sensor module, the temperature detection module and the data processing module are arranged in a labyrinth of the smoke detector; the alarm device is connected with the data processing module and adopts a two-stage alarm mode, and when the combustible gas sensor module detects that combustible gas exists in the environment, the alarm device starts an alarm mode; when the temperature-sensing smoke detector detects smoke, the alarm device starts a fire alarm mode.
The utility model discloses relative prior art has substantive characteristics and progress, specific theory, the utility model discloses an add inside temperature detection module, combustible gas sensor module and the data processing device of establishing of smoke detector, set up two-stage alarm mode, at the initial stage that the conflagration took place, detect the combustible gas change in the air, temperature, smog all reach the warning limit in the environment, open buzzing alarm and pilot lamp. The response performance of the smoke detector is improved, and the false alarm rate is reduced.
Drawings
Fig. 1 is a schematic view of the overall structure of the smoke detector of the present invention.
Fig. 2 is a schematic view of the partial structure of the smoke detector of the present invention.
In the figure: 1. a launch tube; 2. a launch tube; 3. a receiving tube; 4. a temperature detection module; 5. a combustible gas sensor module.
Detailed Description
The technical solution of the present invention will be described in further detail through the following embodiments.
As shown in fig. 1 and 2, a smoke detector based on temperature sensing and combustible gas detection functions comprises a smoke detector, and further comprises a combustible gas sensor module, a temperature detection module and a data processing module which are arranged in a labyrinth of the smoke detector, wherein the combustible gas sensor module, the temperature detection module and the alarm device are electrically connected with the data processing module; the alarm device is connected with the data processing module and adopts a two-stage alarm mode, and when the combustible gas sensor module detects that combustible gas exists in the environment, the alarm device starts an alarm mode; when the temperature-sensing smoke detector detects smoke, the alarm device starts a fire alarm mode.
The detection chamber of the smoke detector is in a labyrinth type and comprises a labyrinth base and a labyrinth cover; a forward scattering light path and a backward scattering light path which are composed of two transmitting tubes 1 and 2 and a receiving tube group 3 are arranged in the labyrinth, wherein the included angle formed by the central optical axis of the transmitting tube 1 and the central optical axis of the receiving tube 3 of the forward scattering light path is 120oThe included angle formed by the central optical axis of the transmitting tube 2 and the central optical axis of the receiving tube 3 of the back scattering optical path is 60o. The transmitting tubes 1 and 2 are infrared transmitting tubes, and the wavelength range of light beams emitted by the infrared transmitting tubes 1 and 2 is 850 nm-940 nm. The receiving tube 3 is an infrared receiving tube, and the wavelength range of the light beams received by the infrared receiving tube 3 is 850 nm-940 nm. The forward scattering light path mainly detects the ash and white smoke generated by smoldering wood, sawdust, paper, fiber fabric, latex rubber, cotton, linen and the like, and has sensitive response and high precision. The back-scattered light path primarily detects visible aerosols, i.e., black smoke, produced by the combustion of the fuel. The two-emission one-receiving double-light-path scattering light path is adopted, the identification of smoke and colors with different particle sizes is realized, and the detection range of the detector is improved.
Specifically, the data processing device adopts an MSP430 ultra-low power consumption induction and measurement MCU singlechip data analysis and control system produced by Texas Instruments.
The temperature detection module 4 adopts an MF11 compensation type NTC thermistor temperature-sensing detector produced by Nanjing Hezem constant electronics, and the temperature-sensing detector automatically detects the temperature change in the surrounding environment. When the temperature reaches the alarm value or the temperature jump meets the requirement, the detector starts acousto-optic alarm, starts the output of the relay, transmits the measured temperature information to the data processing device through the temperature sensing device, and judges the temperature change in the measured environment.
The combustible gas sensor module 5 adopts a MC101B catalytic combustion type gas sensor produced by Weisheng technology, when combustible gas diffuses to the combustible gas detection module, the resistance of a detection element rises, and the output voltage of a bridge circuit changes so as to judge the change of the combustible gas in the environment; the combustible gas sensor module is arranged inside the smoke detector labyrinth, the radial size of the detector labyrinth does not need to be increased, and the transmission of a light path is not hindered. The combustible gas sensor module can adopt a catalytic combustion type sensor, an infrared optical type sensor and the like. Because the catalytic combustion type sensor is composed of a pair of detection elements and compensation elements, the elements oxidize combustible gas during detection, and generate a large amount of heat, and the catalytic combustion type sensor is necessarily arranged at a gas outlet of a labyrinth when the catalytic combustion type sensor is adopted. The infrared optical type combustible gas sensor is mainly used for detecting the change of the alkane combustible gas in the field environment by the absorption principle of an infrared light source, and the infrared optical type combustible gas sensor is adopted, so that the requirement of position setting is not required. Combustible gas surveys module detection environment through combustible gas and combustible gas concentration to take place concentration signal to data processing device, and then judge combustible gas concentration in the air.
The detection chamber of the smoke detector adopts a labyrinth structure of a YB010 independent type smoke detector produced by Hanwei technology group.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (7)
1. The utility model provides a smoke detector based on temperature sensing and combustible gas physical examination function, includes smoke detector, its characterized in that: the smoke detector is characterized by further comprising a combustible gas sensor module, a temperature detection module and a data processing module which are arranged in the labyrinth of the smoke detector, wherein the combustible gas sensor module and the temperature detection module are electrically connected with the data processing module; the alarm device is connected with the data processing module and adopts a two-stage alarm mode, and when the combustible gas sensor module detects that combustible gas exists in the environment, the alarm device starts an alarm mode; when the temperature-sensing smoke detector detects smoke, the alarm device starts a fire alarm mode.
2. The smoke detector based on temperature sensing and combustible gas detection functions of claim 1, wherein: the temperature detection module adopts a common temperature sensing sensor and transmits the measured temperature information to the data processing module.
3. The smoke detector based on temperature sensing and combustible gas detection functions of claim 1, wherein: the combustible gas sensor module adopts a catalytic combustion type gas sensor arranged at a gas outlet of the labyrinth.
4. The smoke detector based on temperature sensing and combustible gas detection functions of claim 1, wherein: the combustible gas sensor module adopts an infrared optical type combustible gas sensor.
5. The smoke detector based on temperature sensing and combustible gas detection functions of claim 1, wherein: the smoke detector comprises a forward scattering light path and a backward scattering light path which are arranged in a labyrinth and composed of two transmitting tubes and a receiving tube, wherein the included angle formed by the central optical axis of the transmitting tube and the central optical axis of the receiving tube of the forward scattering light path is 120oIn the emission tube of the backscatter optical pathThe included angle formed by the central optical axis and the central optical axis of the receiving tube is 60o。
6. The smoke detector based on temperature sensing and combustible gas detection functions of claim 5, wherein: the transmitting tube is an infrared transmitting tube, and the wavelength range of light beams emitted by the infrared transmitting tube is 850-940 nm.
7. The smoke detector based on temperature sensing and combustible gas detection functions of claim 6, wherein: the receiving tube is an infrared receiving tube, and the wavelength range of light beams received by the infrared receiving tube is 850 nm-940 nm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920537075.1U CN209928576U (en) | 2019-04-19 | 2019-04-19 | Smoke detector based on temperature sensing and combustible gas detection functions |
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| CN201920537075.1U CN209928576U (en) | 2019-04-19 | 2019-04-19 | Smoke detector based on temperature sensing and combustible gas detection functions |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113313902A (en) * | 2021-04-06 | 2021-08-27 | 中国船舶重工集团公司第七0三研究所 | Five-parameter data fusion type fire detector structure |
| CN113516824A (en) * | 2021-04-14 | 2021-10-19 | 汉威科技集团股份有限公司 | Composite fire detector and detection method thereof |
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2019
- 2019-04-19 CN CN201920537075.1U patent/CN209928576U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113313902A (en) * | 2021-04-06 | 2021-08-27 | 中国船舶重工集团公司第七0三研究所 | Five-parameter data fusion type fire detector structure |
| CN113516824A (en) * | 2021-04-14 | 2021-10-19 | 汉威科技集团股份有限公司 | Composite fire detector and detection method thereof |
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