CN110197571B - Toxic gas alarm based on gas sensor - Google Patents
Toxic gas alarm based on gas sensor Download PDFInfo
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- CN110197571B CN110197571B CN201910530541.8A CN201910530541A CN110197571B CN 110197571 B CN110197571 B CN 110197571B CN 201910530541 A CN201910530541 A CN 201910530541A CN 110197571 B CN110197571 B CN 110197571B
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- 239000007789 gas Substances 0.000 title claims abstract description 72
- 239000002341 toxic gas Substances 0.000 title claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 32
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 28
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 9
- 238000001514 detection method Methods 0.000 abstract description 13
- 238000005070 sampling Methods 0.000 abstract description 7
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- 208000002454 Nasopharyngeal Carcinoma Diseases 0.000 description 1
- 206010061306 Nasopharyngeal cancer Diseases 0.000 description 1
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- 150000002500 ions Chemical class 0.000 description 1
- 239000002085 irritant Substances 0.000 description 1
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/14—Toxic gas alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/16—Combustible gas alarms
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Emergency Alarm Devices (AREA)
- Ventilation (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a toxic gas alarm based on a gas sensor, and relates to the technical field of gas alarms. The invention comprises a base and a top plate; the periphery of the base is fixedly connected with an electric louver fan; one surface of each of the electric louver fans is fixedly connected with the top plate; an air inlet area is arranged on the bottom surface of the base; the top surface of the base is fixedly connected with a central control alarm component; the peripheral side of the drainage mechanism is connected with a gas measuring mechanism in a clamping way; one surface of the gas measuring mechanism is fixedly connected with two air purifiers; the inner wall of the top plate is fixedly connected with a first induced draft fan. According to the invention, through the corresponding design of the plurality of buffer tanks and the plurality of sensors, the diversity and the versatility of the device in gas detection are improved, meanwhile, the traditional alarm exposure type gas sampling structure is changed into a buffer type sampling structure, and through the design of the buffer type sampling structure, on one hand, the original parts of the sensors can be effectively protected, and on the other hand, the accuracy of detection results is favorably improved.
Description
Technical Field
The invention belongs to the technical field of gas alarms, and particularly relates to a toxic gas alarm based on a gas sensor.
Background
With the continuous progress of society, the quality requirements of people on living environment are higher and higher, but due to the serious industrial pollution and decoration pollution of the current society, and the wide use of various burner devices, the life of people is seriously threatened, especially the leakage of household gas leakage seriously harms the life and property safety of people, and people live in the environment with poor air quality, the harm to human health is great, many indoor air pollutants are irritant gases, the substances can irritate eyes, noses, throats and skins, symptoms such as lacrimation, cough, sneeze and the like are caused, the respiratory function is reduced and respiratory symptoms are aggravated when people live in turbid air for a long time, diseases such as chronic bronchitis, bronchial asthma, emphysema and the like are caused, and the prevalence rate of lung cancer and nasopharyngeal carcinoma is increased.
The project of the detection of gas alarm on the existing market has the unicity, can not carry out simultaneous detection to multiple gas, and current gas alarm function is comparatively single simultaneously, can not have purification performance concurrently when monitoring gas, simultaneously to the alarm because expose in the air, the gas of sample contains impurity easily, and when using for a long time, the rate of accuracy that the alarm can be reduced on the one hand to the existence of impurity, and on the other hand can cause the sample connection to block up.
Disclosure of Invention
The invention aims to provide a toxic gas alarm based on a gas sensor, which solves the problem that the conventional toxic gas alarm is single in function and lacks of a protection structure for a sensor element through the practice of an electric louver fan, a gas measuring mechanism, an air purifier and a drainage mechanism.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a toxic gas alarm based on a gas sensor, which comprises a base and a top plate, wherein the base is provided with a first opening and a second opening; the periphery of the base is fixedly connected with an electric louver fan; one surfaces of the four electric louver fans are fixedly connected with the top plate; an air inlet area is arranged on the bottom surface of the base; the top surface of the base is fixedly connected with a central control alarm component; a drainage mechanism is fixedly connected to one surface of the alarm component; the circumferential side of the drainage mechanism is connected with a gas measuring mechanism in a clamping manner; one surface of the gas measuring mechanism is fixedly connected with two air purifiers; the inner wall of the top plate is fixedly connected with a first induced draft fan;
the drainage mechanism comprises an air guiding pipe; two groups of air inlet holes are formed in the peripheral side surface of the induced duct; the inner wall of the induced draft pipe is fixedly connected with a second induced draft fan and a filter plate respectively; the output end of the second induced draft fan is provided with a rotating shaft; one end of the rotating shaft penetrates through the filter plate and extends to the outside of the filter plate; the peripheral side surface of the rotating shaft is fixedly connected with two hairbrushes; a plurality of flow guide pipes are communicated with one surface of the induced duct;
the gas measuring mechanism comprises a supporting plate and an exhaust pipe; the inner wall of the supporting plate is clamped with the air guide pipe; the bottom surface of the supporting plate is clamped with the base; a first buffer tank, a second buffer tank and a third buffer tank are fixedly connected to one surface of the supporting plate respectively; a formaldehyde gas sensor is fixedly arranged on the surface of the first buffer tank; a combustible gas sensor is fixedly arranged on one surface of the second buffer tank; a carbon monoxide sensor is fixedly arranged on one surface of the third buffer tank; the peripheral side surfaces of the first buffer tank, the second buffer tank and the third buffer tank are respectively communicated with the flow guide pipe and the exhaust pipe; one surface of the supporting plate is fixedly connected with the two air purifiers respectively.
Furthermore, the three flow guide pipes are distributed on the surface of the induced draft pipe in a circular array; and the inner walls of the three guide pipes are provided with flow meters and one-way valves.
Furthermore, the first buffer tank, the second buffer tank and the third buffer tank are distributed on one surface of the support plate in a circular array; the first buffer tank is positioned on the outer side of the induced draft pipe.
Further, the exhaust pipe is an annular pipe; and one end of the exhaust port of the exhaust pipe is provided with an electromagnetic valve.
Furthermore, an alarm lamp is fixedly connected to one surface of the base; the air inlet area is positioned outside the alarm lamp; and one surface of the top plate is fixedly connected with two mounting frames.
Furthermore, the three air inlet holes are distributed in a circumferential array on the peripheral side surface of the air guide pipe; the inner wall of the induced draft pipe is also provided with a filter element; the filter core is located between second draught fan and the filter plate.
The invention has the following beneficial effects:
1. the gas detection device is provided with the first buffer tank, the second buffer tank and the third buffer tank respectively, each buffer tank is provided with the corresponding sensor, the diversity and the versatility of the gas detection type of the device are improved through the corresponding design of the plurality of buffer tanks and the plurality of sensors, meanwhile, the traditional alarm exposure type gas sampling structure is changed into a buffer type sampling structure, and through the design of the buffer type sampling structure, on one hand, the original parts of the sensors can be effectively protected, and on the other hand, the accuracy of detection results is improved.
2. According to the invention, through the design of the drainage mechanism, impurities in the air can be effectively filtered and the filter plate can be automatically cleaned in the process of sampling the air by the alarm, so that the device has a self-cleaning function, the maintenance of the alarm is facilitated, and the multifunctional shape of the device can be improved through the arrangement of the air purifier and the linkage effect of the air purifier and the alarm; through the design of four electronic louver fans, then can be when air purification or introduce outside air, intelligent regulation air output and air-out efficiency.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced 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 that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a gas sensor based toxic gas alarm;
FIG. 2 is a schematic view of the base, support plate and air purifier;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a schematic top view of the structure of FIG. 3;
FIG. 5 is a schematic structural view of a base and an induced draft tube;
FIG. 6 is a bottom view of the structure of FIG. 5;
FIG. 7 is a schematic structural view of a gas measurement mechanism;
FIG. 8 is a schematic cross-sectional view of the draft tube;
FIG. 9 is a schematic view of the drainage mechanism;
in the drawings, the components represented by the respective reference numerals are listed below:
1-base, 2-top plate, 3-electric louver fan, 4-drainage mechanism, 5-gas measuring mechanism, 6-air purifier, 7-first induced draft fan, 8-mounting frame, 101-air inlet area, 102-central control alarm component, 103-alarm lamp, 401-induced draft tube, 402-air inlet hole, 403-second induced draft fan, 404-filter plate, 405-rotating shaft, 406-brush, 407-guide tube, 408-flowmeter, 409-one-way valve, 501-support plate, 502-exhaust pipe, 503-first buffer tank, 504-second buffer tank, 505-third buffer tank, 506-formaldehyde gas sensor, 507-combustible gas sensor and 508-carbon monoxide sensor.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1 to 9, the present invention is a toxic gas alarm based on a gas sensor, which includes a base 1 and a top plate 2; the periphery of the base 1 is fixedly connected with an electric louver fan 3; the electric louver fan 3 comprises a frame, a plurality of blades, a motor and a blade shaft respectively; the blade shaft is positioned at the blade connection; the motor is used for controlling the opening angle of the blades through a transmission structure between the motor and the blade shaft, and the electric louver fan 3 is used for adjusting the air output and the air output efficiency of the air purifier 6 or the first induced draft fan 7 through the control of the opening angle; one surface of each of the four electric louver fans 3 is fixedly connected with the top plate 2; an air inlet area 101 is arranged on the bottom surface of the base 1; the air inlet area 101 plays roles of air inlet and pre-filtering; the top surface of the base 1 is fixedly connected with a central control alarm component 102; the central control alarm component 102 is a central control mechanism and comprises a controller and a related circuit instrument, the controller is a common PLC (programmable logic controller), and the controller is used for receiving data feedback from the formaldehyde gas sensor 506, the combustible gas sensor 507 and the carbon monoxide sensor 508 and controlling the first induced draft fan 7 and the second induced draft fan 403 to work; a drainage mechanism 4 is fixedly connected to one surface of the central control alarm component 102; the circumferential side of the drainage mechanism 4 is connected with a gas measuring mechanism 5 in a clamping way; one surface of the gas measuring mechanism 5 is fixedly connected with two air purifiers 6; the air purifier 6 is used for purifying air through the generation of negative ions; the model of the air purifier 6 is JL-611, and the inner wall of the top plate 2 is fixedly connected with a first induced draft fan 7; the first induced draft fan 7 is used for introducing external air; when in use, the first induced draft fan 7 is communicated with external fresh air through a pipeline;
the drainage mechanism 4 comprises a drainage pipe 401; two groups of air inlet holes 402 are formed in the peripheral side surface of the induced draft tube 401; the inner wall of the induced draft tube 401 is fixedly connected with a second induced draft fan 403 and a filter plate 404 respectively; the filter plate 404 filters impurities in the air, and the output end of the second induced draft fan 403 is provided with a rotating shaft 405; that is, the output shaft of the motor of the second induced draft fan 403 is connected with the fan blades and is also connected with the rotating shaft 405, and one end of the rotating shaft 405 penetrates through the filter plate 404 and extends to the outside of the filter plate 404; two brushes 406 are fixedly connected to the peripheral side surface of the rotating shaft 405; the brushes 406 are used for scraping cleaning of the filter plate 404; one surface of the induced draft tube 401 is communicated with three draft tubes 407;
the gas measurement mechanism 5 includes a support plate 501 and an exhaust pipe 502; the inner wall of the supporting plate 501 is clamped with the induced draft pipe 401; the bottom surface of the supporting plate 501 is clamped with the base 1; a first buffer tank 503, a second buffer tank 504 and a third buffer tank 505 are fixedly connected to one surface of the support plate 501 respectively; a formaldehyde gas sensor 506 is fixedly arranged on one surface of the first buffer tank 503; a combustible gas sensor 507 is fixedly arranged on one surface of the second buffer tank 504; a carbon monoxide sensor 508 is fixedly arranged on one surface of the third buffer tank 505; the peripheral side surfaces of the first buffer tank 503, the second buffer tank 504 and the third buffer tank 505 are respectively communicated with the guide pipe 407 and the exhaust pipe 502; one surface of the supporting plate 501 is fixedly connected with two air purifiers 6 respectively, the model of the formaldehyde gas sensor 506 is WSP2110, the model of the combustible gas sensor 507 is TGS2611, and the model of the carbon monoxide sensor 508 is mQ-co 4;
as shown in fig. 1-9, three draft tubes 407 are distributed on one surface of the draft tube 401 in a circular array; the inner walls of the three guide pipes 407 are provided with flow meters 408 and one-way valves 409; the flow meter 408 is used to meter ventilation; the check valve 409 is used for one-way ventilation.
Wherein, the first buffer tank 503, the second buffer tank 504 and the third buffer tank 505 are distributed on one surface of the support plate 501 in a circular array; the first buffer tank 503 is located outside the draft tube 401.
Wherein the exhaust pipe 502 is a ring pipe; an electromagnetic valve is arranged at one end of an exhaust port of the exhaust pipe 502; the solenoid valve is used to control the exhaust of the exhaust pipe 502
Wherein, an alarm lamp 103 is fixedly connected with one surface of the base 1; the bottom surface of the base 1 is also provided with a voice alarm; the air inlet area 101 is positioned outside the alarm lamp 103; one surface of the top plate 2 is fixedly connected with two mounting frames 8.
Wherein, the three air inlet holes 402 are distributed in a circumferential array on the circumferential side surface of the induced draft tube 401; the inner wall of the induced draft pipe 401 is also provided with a filter element 410; the filter element 410 is a sponge filter element; the filter element 410 is located between the second induced draft fan 403 and the filter plate 404.
One specific application of this embodiment is: the alarm is mainly used for household, when in use, the device is arranged indoors through the mounting rack 8, the device is provided with three gas detection functions, namely, the formaldehyde detection alarm function provided by the formaldehyde gas sensor 506, the combustible gas detection alarm function provided by the combustible gas sensor 507 and the carbon monoxide detection alarm function provided by the carbon monoxide sensor 508, the combustible gas sensor 507, the formaldehyde gas sensor 506 and the carbon monoxide sensor 508 transmit the detected data to the controller in the central control alarm component 102 in real time, when the gas content detected by any one sensor exceeds a threshold value, the controller controls the voice device and the alarm lamp 103 of the central control alarm component 102 to work, carries out voice and color alarm, the combustible gas sensor 507, the formaldehyde gas sensor 506 and the carbon monoxide sensor 508 have different voices and different warning colors correspondingly.
When the device works, two air purifiers 6 and a gas measuring mechanism 5 can be selected to work simultaneously or only the gas measuring mechanism 5 works, when the gas measuring mechanism 5 works, a second induced draft fan 403 works periodically under the control of a controller to supply gas to three buffer tanks, a filter plate 404 filters impurities in the air in the induced air process, a brush 406 self-cleans the filter plate 404, the scraped impurities are discharged from an air inlet area 101, when the gas is supplied to the three buffer tanks, an electromagnetic valve of an exhaust pipe 502 is opened for 1 minute and then closed to discharge residual gas of the three buffer tanks, after a flow meter 408 detects that the gas supply amount reaches a set value, the second induced draft fan 403 stops working, three gas sensors detect the gas, after the periodic detection time reaches, the electromagnetic valve is repeatedly opened for 1 minute and then closed, the flow meter 408 detects, and the second induced draft fan 403 stops working, the periodic working time of the second induced draft fan 403 and the detection time of the gas sensor can be set by the controller, for example, set to 2min, 5min, and so on.
When any one gas sensor detects that the smell is unusual, carry out the audible and visual alarm operation on the one hand, two air purifier 6 work of controller simultaneous control, introduce external fresh air through first draught fan 7 simultaneously, carry out harmful gas's dilution, the controller can be simultaneously according to harmful gas's concentration, controls four electronic louver fan 3's expansion angle to control intake and air inlet efficiency, during the use, first draught fan 7 should be connected with the outside air through the pipeline.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (2)
1. The utility model provides a toxic gas alarm based on gas sensor, includes base (1) and roof (2), its characterized in that:
the periphery of the base (1) is fixedly connected with an electric louver fan (3); one surface of each of the electric louver fans (3) is fixedly connected with the top plate (2); an air inlet area (101) is arranged on the bottom surface of the base (1); the top surface of the base (1) is fixedly connected with a central control alarm component (102); a drainage mechanism (4) is fixedly connected to one surface of the alarm component; the peripheral side surface of the drainage mechanism (4) is connected with a gas measuring mechanism (5) in a clamping manner; one surface of the gas measuring mechanism (5) is fixedly connected with two air purifiers (6); the inner wall of the top plate (2) is fixedly connected with a first induced draft fan (7);
the drainage mechanism (4) comprises a drainage pipe (401); two groups of air inlet holes (402) are formed in the peripheral side surface of the air guide pipe (401); the inner wall of the induced draft pipe (401) is fixedly connected with a second induced draft fan (403) and a filter plate (404) respectively; the output end of the second induced draft fan (403) is provided with a rotating shaft (405); one end of the rotating shaft (405) penetrates through the filter plate (404) and extends to the outside of the filter plate (404); two brushes (406) are fixedly connected to the peripheral side surface of the rotating shaft (405); one surface of the induced draft pipe (401) is communicated with a plurality of draft pipes (407); the inner walls of the plurality of draft tubes (407) are provided with flow meters (408) and one-way valves (409);
the gas measuring mechanism (5) comprises a support plate (501) and an exhaust pipe (502); the inner wall of the supporting plate (501) is clamped with the induced draft pipe (401); the bottom surface of the supporting plate (501) is clamped with the base (1); a first buffer tank (503), a second buffer tank (504) and a third buffer tank (505) are fixedly connected to one surface of the supporting plate (501) respectively; a formaldehyde gas sensor (506) is fixedly arranged on one surface of the first buffer tank (503); a combustible gas sensor (507) is fixedly arranged on one surface of the second buffer tank (504); a carbon monoxide sensor (508) is fixedly arranged on one surface of the third buffer tank (505); the peripheral side surfaces of the first buffer tank (503), the second buffer tank (504) and the third buffer tank (505) are respectively communicated with the guide pipe (407) and the exhaust pipe (502); one surface of the supporting plate (501) is fixedly connected with the two air purifiers (6) respectively;
the plurality of flow guide pipes (407) are distributed on one surface of the induced draft pipe (401) in a circular array;
the first buffer tank (503), the second buffer tank (504) and the third buffer tank (505) are distributed on one surface of the support plate (501) in a circular array; the first buffer tank (503) is positioned outside the induced draft pipe (401);
the exhaust pipe (502) is an annular pipe; an electromagnetic valve is arranged at one end of an exhaust port of the exhaust pipe (502);
the air inlet holes (402) are distributed in a circumferential array on the circumferential side surface of the induced draft pipe (401); the inner wall of the induced draft pipe (401) is also provided with a filter element (410); the filter element (410) is positioned between the second induced draft fan (403) and the filter plate (404).
2. The toxic gas alarm based on the gas sensor as claimed in claim 1, wherein an alarm lamp (103) is fixedly connected to one surface of the base (1); the air inlet area (101) is positioned on the outer side of the alarm lamp (103); one surface of the top plate (2) is fixedly connected with two mounting frames (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910530541.8A CN110197571B (en) | 2019-06-19 | 2019-06-19 | Toxic gas alarm based on gas sensor |
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| CN201910530541.8A CN110197571B (en) | 2019-06-19 | 2019-06-19 | Toxic gas alarm based on gas sensor |
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| CN110197571A CN110197571A (en) | 2019-09-03 |
| CN110197571B true CN110197571B (en) | 2021-12-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110487879B (en) * | 2019-09-05 | 2022-06-21 | 宁夏诺克银丰智能科技有限公司 | Gas alarm detection device |
| CN113380006B (en) * | 2021-06-08 | 2022-01-11 | 江苏威尔安智能科技有限公司 | Intelligent gas alarm based on transmission function of Internet of things |
| CN113552287B (en) * | 2021-06-15 | 2022-09-16 | 国网河南省电力公司宝丰县供电公司 | Sulfur hexafluoride detection device and method |
| CN113864959A (en) * | 2021-10-19 | 2021-12-31 | 苏州沈氏净化设备有限公司 | Combined clean air conditioner box with variable filtering efficiency |
| CN113720974B (en) * | 2021-11-03 | 2022-03-04 | 张家港谱析传感科技有限公司 | Environmental pollution monitoring instrument |
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| CN107727809A (en) * | 2017-12-11 | 2018-02-23 | 洛阳乐森石化新材料有限公司 | A kind of detection means of workshop gas |
| CN109448330A (en) * | 2018-11-02 | 2019-03-08 | 合肥吴亦科技有限公司 | A kind of natural gas warning device for smart home |
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| CN110197571A (en) | 2019-09-03 |
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