CN217333459U - High-speed red-ultraviolet composite fire detector - Google Patents
High-speed red-ultraviolet composite fire detector Download PDFInfo
- Publication number
- CN217333459U CN217333459U CN202220774175.8U CN202220774175U CN217333459U CN 217333459 U CN217333459 U CN 217333459U CN 202220774175 U CN202220774175 U CN 202220774175U CN 217333459 U CN217333459 U CN 217333459U
- Authority
- CN
- China
- Prior art keywords
- ultraviolet
- infrared
- detection
- photoelectric tube
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a high-speed red and ultraviolet composite fire detector, which comprises a shell and a detection component integrated in the shell; the detection assembly is provided with an ultraviolet photoelectric tube and an infrared photoelectric tube; the ultraviolet photoelectric tube is used for detecting an ultraviolet spectrum, and the infrared photoelectric tube is used for detecting an infrared spectrum; the detection waveband of the ultraviolet photoelectric tube is 0.185-0.265 mu m; the detection waveband of the infrared photoelectric tube takes 4.3 μm as a wavelength peak value. The utility model discloses a detecting element has combined ultraviolet phototube and infrared phototube in the detector, utilizes ultraviolet phototube to catch 0.185 ~ 0.265 mu m's spectrum band to utilize infrared phototube to catch 4.3 mu m's spectrum band, through mathematical model contrast infrared energy, judge through the analysis logic, output stable alarm signal can not receive other environmental impact and take place the erroneous judgement, and the rate of accuracy of judging the conflagration obtains improving.
Description
Technical Field
The utility model relates to a conflagration control technical field especially relates to a compound fire detector of high-speed red ultraviolet.
Background
At present, detection and monitoring means are increasingly abundant in a protection area which is easy to cause fire, and in the prior art, false alarms can be generated when a single-infrared detector or a double-infrared detector or a single-ultraviolet detector or a double-ultraviolet detector encounters strong light, electric welding and lightning in the using process.
Therefore, based on the above technical problems, there is a need for a new and novel infrared and ultraviolet composite fire detector that reduces and solves the occurrence of false alarms.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a set infrared ray and ultraviolet ray detection, realization judge the conflagration comparatively accurately, and in time send alarm signal's compound fire detector of high-speed red ultraviolet.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model discloses a compound fire detector of high-speed red ultraviolet, this fire detector includes:
a housing; and
a detection assembly integrated within the housing;
an installation cavity is formed inside the shell, and the detection assembly is integrated in the installation cavity;
the detection assembly is provided with an ultraviolet photoelectric tube and an infrared photoelectric tube;
the ultraviolet photoelectric tube is used for detecting an ultraviolet spectrum, and the infrared photoelectric tube is used for detecting an infrared spectrum;
the detection waveband of the ultraviolet photoelectric tube is 0.185-0.265 mu m;
the detection waveband of the infrared photoelectric tube takes 4.3 μm as a wavelength peak value.
Further, the housing includes:
a housing body;
the end cover is positioned on one side of the shell body and is fixedly assembled with the shell through bolts; and
the mounting cylinder is connected with the end cover and extends outwards;
the mounting cavity is formed in the shell body, and a detection cavity communicated with the mounting cavity is formed at one end, far away from the end cover, of the shell body;
the detection assembly is installed in the installation cavity, and a detection element part of the detection assembly extends into the detection cavity.
Furthermore, a sealing ring is installed in the installation cylinder, a compression nut is connected to the installation cylinder through threads, and the compression nut presses and holds the sealing ring through the compression ring.
Furthermore, a spectrum receiving port is formed at one end, close to the detection cavity, of the shell body;
the spectrum receiving opening is configured as a flaring structure with the cross section size gradually increasing from the side close to the detection cavity to the side far away from the detection cavity.
Further, the detection assembly includes:
a control panel;
the electric tube group is electrically connected with the control board; and
the ultraviolet-transmitting fused quartz glass is positioned at one end of the electric tube group;
the electric tube group is divided into the ultraviolet photoelectric tube and the infrared photoelectric tube;
the electric tube group and the ultraviolet-transmitting fused quartz glass are both positioned in the detection cavity, and the control panel is arranged in the installation cavity.
Further, the ultraviolet photoelectric tube is an ultraviolet photoelectric tube with a spectral band of 0.185-0.265 mu m;
the infrared photoelectric tube is formed by packaging an infrared photosensitive element and an infrared filter, wherein the infrared photosensitive element takes an infrared wavelength peak value of 4.3 micrometers as a judgment basis.
Further, the control board comprises a control mother board and a control daughter board;
the control mother board is connected with the control daughter board, and the electric pipe group is electrically connected with the control daughter board.
In the technical scheme, the utility model provides a pair of compound fire detector of high-speed red ultraviolet has following beneficial effect:
the utility model discloses a detecting element has combined ultraviolet phototube and infrared phototube in the detector, utilizes ultraviolet phototube to catch 0.185 ~ 0.265 mu m's spectrum band to utilize infrared phototube to catch 4.3 mu m's spectrum band, through mathematical model contrast infrared energy, judge through the analysis logic, output stable alarm signal can not receive other environmental impact and take place the erroneous judgement, and the rate of accuracy of judging the conflagration obtains improving.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
Fig. 1 is a schematic structural diagram of a high-speed infrared and ultraviolet composite fire detector according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a detection assembly of a high-speed red-ultraviolet composite fire detector according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of an ultraviolet phototube of a high-speed infrared and ultraviolet composite fire detector provided by an embodiment of the present invention;
fig. 4 is a schematic circuit diagram of an infrared photoelectric tube of a high-speed red-ultraviolet composite fire detector according to an embodiment of the present invention.
Description of reference numerals:
1. a housing body; 2. a detection component;
101. a mounting cavity; 102. a detection chamber; 103. a spectrum receiving port; 104. an end cap; 105. mounting the cylinder; 106. a seal ring; 107. a compression ring; 108. a compression nut;
201. an ultraviolet light cell; 202. an infrared photoelectric tube; 203. ultraviolet-transmitting fused silica glass; 204. a control motherboard; 205. and a control daughter board.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
See fig. 1-4;
the compound fire detector of high-speed red ultraviolet of this embodiment, this fire detector includes:
a housing; and
a detection assembly 2 integrated in the housing;
a mounting cavity 101 is formed inside the shell, and the detection assembly 2 is integrated in the mounting cavity 101;
the detection assembly 2 is provided with an ultraviolet phototube 201 and an infrared phototube 202;
the ultraviolet photocell 201 is used for detecting ultraviolet spectrum, and the infrared photocell 202 is used for detecting infrared spectrum;
the detection waveband of the ultraviolet photoelectric tube 201 is 0.185-0.265 mu m;
the detection wavelength band of the infrared photoelectric cell 202 has a peak wavelength of 4.3 μm.
Specifically, the present embodiment discloses a fire detector combining ultraviolet light detection and infrared light detection, in which a natural burning object emits radiation of different degrees corresponding to different wavelength spectrums thereof. Heat-generating objects can radiate infrared radiation (any object with a temperature above 0K (-273 c) will emit infrared radiation), and generally low temperature objects will not radiate infrared radiation (arc welding, lightning, static electricity, high voltage corona, X-ray and gamma radiation). Only flames radiate both ultraviolet and infrared rays. By comparing the spectrum of the sunlight and referring to the related data of the standard solar spectrum, the initial value of the comparison wavelength range is changed from 305nm to 280nm, the uniform wavelength interval is adopted, the resolution is higher, and more atmospheric components are considered. The peak of the flame spectrum is CO around the 4.3 μm position in the infrared wavelength 2 The emission spectrum of radicals, which is one of the characteristics possessed by flames, has high intensity compared with the spectrum, and more importantly, almost no interference of sunlight is existed in the vicinity of the peak, so that flame detection with 4.3 μm as the central wavelength band is most suitable. Analysis in ultraviolet band shows that the ultraviolet spectrum distribution of fire is 0.3-0.38 μm, and the ultraviolet spectrum distribution of sunlight is also 0.28-0.4 μm, and both have large spectrum overlapping interference, but because the atmosphere has certain absorption capacity to short-wave ultraviolet rays, the ultraviolet rays are absorbed by the atmosphere in the band below 0.29 μm in the process that the solar radiation passes through the atmosphere to reach the earth surface, so that only the solar ultraviolet rays in the band above 0.29 μm can be detected on the earth. The ultraviolet spectrum distribution of the fire is still more obvious ultraviolet light below 0.29 mu m, and the interference of sunlight ultraviolet light is less in the interval, so that the flame detector is designed to select a wave band of 0.185-0.260 mu m as an ultraviolet monitoring area.
Therefore, based on the above theory, the detector of the present embodiment integrates the detecting component 2 with two types of photocells, the detecting waveband of the ultraviolet photocell 201 is 0.185-0.265 μm, and the detecting waveband of the infrared photocell 202 is 4.3 μm as the peak value of the wavelength, and uses the detection of the specific waveband of the ultraviolet photocell and the infrared photocell to achieve the accurate detection and monitoring of the fire and send out the alarm signal.
Preferably, as an embodiment capable of realizing integration of the above-described detection assembly, the housing of the present embodiment includes:
a housing body 1;
an end cover 105 which is positioned at one side of the shell body 1 and is assembled and fixed with the shell through bolts; and
a mounting tube 105 connected to the end cap 105 and extending outward;
the interior of the shell body 1 is formed into an installation cavity 101, and one end of the shell body 1, which is far away from the end cover 105, is provided with a detection cavity 102 communicated with the installation cavity 101;
the detection assembly 2 is installed in the installation cavity 101, and the detection element part of the detection assembly 2 extends into the detection cavity 102.
A seal ring 106 is installed in the installation cylinder 105, a compression nut 108 is connected to the installation cylinder 105 through a thread, and the compression nut 108 presses the seal ring 106 through a compression ring 107.
One end of the shell body 1 close to the detection cavity 102 is provided with a spectrum receiving port 103;
the spectral receiving opening 103 is configured as a flaring structure with a gradually increasing cross-sectional dimension from a side close to the detection cavity 102 to a side far away from the detection cavity 102.
In actual operation, it is necessary to integrate the detecting component 2 inside through the above-mentioned housing, and to receive the spectrum from the outside in real time by using the spectrum receiving port 103, therefore, the present embodiment forms three spaces in the housing, namely, the mounting cavity 101 for mounting the detecting component 2, the detecting cavity 102 for detecting by the photocell, and the spectrum receiving port 103 for facilitating the passage of external light waves. The detector of the present embodiment is generally assembled and fixed with an external structure by using the mounting tube 105 at the upper end, so as to realize the integration of the whole detector, and the detector can be hung on a roof or fixed on a wall.
Preferably, the detecting assembly 2 of the present embodiment includes:
a control panel;
the electric tube group is electrically connected with the control panel; and
ultraviolet-transmitting fused silica glass 203 at one end of the electric tube set;
the electric tube group is divided into an ultraviolet electric tube 201 and an infrared electric tube 202;
the electric tube group and the ultraviolet-transmitting fused silica glass 203 are both positioned in the detection cavity 102, and the control board is arranged in the installation cavity 101.
Wherein, the ultraviolet photoelectric tube 201 is an ultraviolet photoelectric tube with a spectral band of 0.158-0.265 μm;
the infrared photoelectric tube 202 is an infrared tube formed by encapsulating an infrared photosensor and an infrared filter, which have an infrared wavelength peak of 4.3 μm as a determination basis.
As a control board of the control assembly 2, the control board includes a control motherboard 204 and a control daughter board 205;
the control motherboard 204 is connected to the control daughter board 205, and the electric tube group is electrically connected to the control daughter board 205.
The collection of flame light source is collected by the ultraviolet photoelectric tube 201, the collection of heat source is collected by the infrared photoelectric tube 202, and the wave band capable of collecting is set, so as to combine with the mathematical model to compare the infrared energy, realize the more accurate judgment of fire, not influenced by external factors such as hard light, lightning and the like,
in the technical scheme, the utility model provides a pair of compound fire detector of high-speed red ultraviolet has following beneficial effect:
the utility model discloses a detecting element has combined ultraviolet ray phototube 201 and infrared phototube 202 in the detector, utilizes ultraviolet ray phototube 201 to catch 0.185 ~ 0.265 mu m's spectrum band to utilize infrared ray phototube 202 to catch 4.3 mu m's spectrum band, through mathematical model contrast infrared energy, judge through analysis logic, output stable alarm signal can not receive other environmental impact and take place the erroneous judgement, judges the rate of accuracy of conflagration and obtains improving.
Certain exemplary embodiments of the present invention have been described above by way of illustration only, and it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (7)
1. A high-speed red-ultraviolet composite fire detector is characterized by comprising:
a housing; and
a detection assembly (2) integrated in the housing;
an installation cavity (101) is formed inside the shell, and the detection assembly (2) is integrated in the installation cavity (101);
the detection assembly (2) is provided with an ultraviolet photoelectric tube (201) and an infrared photoelectric tube (202);
the ultraviolet photoelectric tube (201) is used for detecting an ultraviolet spectrum, and the infrared photoelectric tube (202) is used for detecting an infrared spectrum;
the detection wavelength band of the ultraviolet photoelectric tube (201) is 0.185-0.265 mu m;
the detection wave band of the infrared photoelectric tube (202) takes 4.3 μm as a wave length peak value.
2. A high-speed composite fire detector as recited in claim 1 wherein the housing comprises:
a housing body (1);
the end cover (104) is positioned on one side of the shell body (1) and is fixedly assembled with the shell through bolts; and
a mounting barrel (105) connected to the end cap (104) and extending outwardly;
the mounting cavity (101) is formed inside the shell body (1), and a detection cavity (102) communicated with the mounting cavity (101) is formed at one end, away from the end cover (104), of the shell body (1);
the detection assembly (2) is installed in the installation cavity (101), and a detection element part of the detection assembly (2) extends into the detection cavity (102).
3. A high-speed composite fire detector according to claim 2, wherein a sealing ring (106) is installed in the installation cylinder (105), a compression nut (108) is connected to the installation cylinder (105) in a threaded manner, and the compression nut (108) presses and holds the sealing ring (106) through a compression ring (107).
4. A high-speed composite fire detector according to claim 2, characterized in that the shell body (1) has a spectrum receiving opening (103) at one end near the detection cavity (102);
the spectrum receiving opening (103) is configured as a flaring structure with the section size gradually increasing from the side close to the detection cavity (102) to the side far away from the detection cavity (102).
5. A high-speed hybrid fire detector as claimed in claim 4, characterized in that said detection assembly (2) comprises:
a control panel;
the electric tube group is electrically connected with the control board; and
an ultraviolet-transparent fused silica glass (203) at one end of the electric tube set;
the electric tube group is divided into the ultraviolet photoelectric tube (201) and the infrared photoelectric tube (202);
the electric tube group and the ultraviolet-transmitting fused silica glass (203) are both positioned in the detection cavity (102), and the control board is installed in the installation cavity (101).
6. The high-speed red and ultraviolet composite type fire detector according to claim 5, wherein the ultraviolet photoelectric tube (201) is an ultraviolet photoelectric tube with a spectral band of 0.185-0.265 μm;
the infrared photoelectric tube (202) is formed by packaging an infrared photosensitive element and an infrared filter, wherein the infrared wavelength peak value of 4.3 mu m is used as a judgment basis.
7. A high-speed composite type fire detector according to claim 5, wherein the control board comprises a control mother board (204) and a control daughter board (205);
the control mother board (204) is connected with the control daughter board (205), and the electric pipe group is electrically connected with the control daughter board (205).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220774175.8U CN217333459U (en) | 2022-04-02 | 2022-04-02 | High-speed red-ultraviolet composite fire detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220774175.8U CN217333459U (en) | 2022-04-02 | 2022-04-02 | High-speed red-ultraviolet composite fire detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217333459U true CN217333459U (en) | 2022-08-30 |
Family
ID=83002474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220774175.8U Active CN217333459U (en) | 2022-04-02 | 2022-04-02 | High-speed red-ultraviolet composite fire detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217333459U (en) |
-
2022
- 2022-04-02 CN CN202220774175.8U patent/CN217333459U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202486267U (en) | Corona detection apparatus based on UV narrow band spectrum | |
| CN202259154U (en) | High sensitivity ultraviolet phototube | |
| CN202917432U (en) | Ultraviolet phototube | |
| CN105354974A (en) | Flame detection method based on three-wavelength infrared flame detector | |
| CN217333459U (en) | High-speed red-ultraviolet composite fire detector | |
| CN212084315U (en) | High-speed flame detector with infrared calibration lamp and temperature monitoring and compensating functions | |
| CN202195883U (en) | High-speed ultraviolet flame detector | |
| CN110174222A (en) | A kind of oil immersed type capacitor leakage of oil detection device and method | |
| CN112461778A (en) | High-precision multi-channel combustible gas detector | |
| CN201242470Y (en) | Infrared four-waveband flame detector | |
| CN105513261A (en) | Three-wavelength infrared flame detector | |
| CN103135044A (en) | Single-laser positioning corona ultraviolet detecting instrument | |
| CN109738768A (en) | A kind of switchgear electric arc on-line measuring device | |
| CN214473721U (en) | Built-in multispectral sensing device for GIS | |
| CN211124305U (en) | Anti-misoperation ultraviolet flame sensor | |
| CN106128009A (en) | A kind of ultraviolet portable digital Generic Alert module for flame detecting | |
| CN210004442U (en) | intelligent integrated flame detector | |
| CN204833586U (en) | Infared flame detector | |
| CN205537953U (en) | Explosion flame sensor | |
| CN204240399U (en) | Integration ultraviolet flame checking unit | |
| CN213715372U (en) | Photoelectric sensor for discharge detection | |
| CN202259155U (en) | Solar-blind air-inflating ultraviolet photoelectron tube | |
| CN219577677U (en) | Ultraviolet solar blind detector | |
| CN208125936U (en) | A kind of fertilizer deficiency detection sensor | |
| CN2373790Y (en) | Infra-red/ultraviolet composite type flame detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |