CN110009865A - The explosion-proof aspirating smoke detector of N-shaped - Google Patents
The explosion-proof aspirating smoke detector of N-shaped Download PDFInfo
- Publication number
- CN110009865A CN110009865A CN201910392855.6A CN201910392855A CN110009865A CN 110009865 A CN110009865 A CN 110009865A CN 201910392855 A CN201910392855 A CN 201910392855A CN 110009865 A CN110009865 A CN 110009865A
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- CN
- China
- Prior art keywords
- shielding box
- chamber
- acquisition component
- component
- explosion
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- 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.)
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
- G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke
Abstract
The present invention provides a kind of explosion-proof aspirating smoke detector of N-shaped, mainly solve the problems, such as that existing aspirating smoke detector is not up to N-shaped explosion-proof criteria.Described shielding box A (1) built in air sampling component, shielding box B (2) built-in sensors detect acquisition component, the air sampling component is connected under test gas part by installation air inlet pipe (6), gas after also being detected by installation escape pipe is discharged, air sampling component also passes through gas circuit hose (7) and sensor detection acquisition component constitutes gas circuit circulation, and closure periphery flange and tightens achievable IP54 by bolt.Air sampling component is realized to be isolated with sensor detection acquisition component；Two shielding boxs are that double cavity structure effectively inhibits electromagnetic interference；The integral structure of filter mounting groove and acquisition shielding box, which designs, can be achieved IP54 degree of protection.
Description
Technical field
The present invention relates to a kind of explosion-proof aspirating smoke detectors of N-shaped.
Background technique
Aspirating smoke detector is by suction fan, carbon monoxide acquisition component, filter, laser acquisition chamber, acquisition electricity
The composition such as road, control circuit, display circuit.Blower draws air through filter from closed in space and enters laser acquisition chamber.It crosses
The laser that smoke particle after filter in air can be such that laser acquisition component issues scatters, and sensor detects scattering light, will
Optical signal is converted into electric signal, is handled by logic circuit and issues alarm signal, and passes through display circuit display alarm information.
Aspirating smoke detector is mainly used for the early detection of fire, and aspirating smoke detector currently on the market is equal
Not up to N-shaped explosion-proof criteria.
Summary of the invention
The purpose of the present invention is to solve the above-mentioned problems of the prior art, and then provide a kind of explosion-proof air-breathing of N-shaped
Formula smoke detector meets the design requirement of N-shaped electric apparatus for explosive atmospheres,.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of explosion-proof aspirating smoke detector of N-shaped between the two by gas circuit and is led including what shell and enclosure interior were arranged
Shielding box A, the shielding box B of line connection, the shielding box A built in air sampling component, the detection of shielding box B built-in sensors are adopted
Collect component, the air sampling component is connected under test gas part by installation air inlet pipe, also carries out by installation escape pipe
Gas discharge after detection, air sampling component also passes through gas circuit hose and sensor detection acquisition component constitutes gas circuit circulation,
And closure periphery flange and achievable IP is tightened by bolt.
The shielding box A and shielding box B is double cavity structure, and is connected between two-chamber, the air sampling component
Including being mounted on the indoor fan assembly for air-breathing and exhaust of mono- chamber of shielding box A, and be mounted on shielding box A another
Chamber is indoor for detecting the carbon monoxide acquisition component of carbonomonoxide concentration；The sensor detection acquisition component includes peace
It is indoor for detecting the laser acquisition component of smokescope mounted in mono- chamber of shielding box B, and be mounted on shielding box B another
The indoor collecting circuit board of chamber, the collecting circuit board by conducting wire respectively with fan assembly, sensor module, laser acquisition
Component, display circuit are connected according to circuit theory.
It is also set up between shielding box A, the shielding box B and is communicated with filter, in filter air inlet port and shielding box A
The chamber of carbon monoxide acquisition component is installed, filter outlet port is divided into the laser acquisition component of two-way Yu shielding box B
Place chamber, chamber where laser acquisition component also with chamber where shielding box A fan assembly.
The beneficial effects of the present invention are: using two shielding boxs inside detector by using technical solution of the present invention
Design structure, realize air sampling component and sensor detection acquisition component and be isolated；Two shielding boxs are double cavity structure
Effectively inhibit electromagnetic interference；The integral structure of filter mounting groove and acquisition shielding box, which designs, can be achieved IP degree of protection.
Detailed description of the invention
Fig. 1 is the explosion-proof aspirating smoke detector structure chart of inventive n-type.
Fig. 2 is the explosion-proof aspirating smoke detector construction profile of inventive n-type.
Fig. 3 is that the explosion-proof aspirating smoke detector internal component gas circuit of inventive n-type moves towards schematic diagram.
Specific embodiment
Below in conjunction with attached drawing, the present invention is described in further detail: the present embodiment is being with technical solution of the present invention
Under the premise of implemented, give detailed embodiment, but protection scope of the present invention is not limited to following embodiments.
As depicted in figs. 1 and 2, a kind of explosion-proof aspirating smoke detector of N-shaped involved in the present embodiment, including shell,
And the shielding box A1 between the two connected by gas circuit with conducting wire, the shielding box B2 of enclosure interior setting, using two shielding boxs
Design method realize the detection acquisition of air acquisition and sensor and be isolated, and facilitate installation and maintenance, two shielding boxs are
Double cavity structure ensure that each electronic building brick is not interfere with each other；In the shielding box A1 built in air sampling component, shielding box B2
Sensor detection acquisition component is set, the air sampling component is connected under test gas part by installation air inlet pipe 6, also passes through
Gas after installation escape pipe is detected is discharged, and air sampling component also passes through gas circuit hose 7 and sensor detects acquisition group
Part connection, and closure periphery flange and achievable IP54 is tightened by bolt.
The explosion-proof aspirating smoke detector internal circuit design of N-shaped meets the design requirement of N-shaped electric apparatus for explosive atmospheres, just
Under normal service condition, the temperature of the spark for lighting explosive mixture or danger will not be generated.It has been taken in structure design
Effect measure, improves its safe coefficient, and the degree of protection of probe body can reach IP54.
The shielding box A1 and shielding box B2 is double cavity structure, and is connected between two-chamber, the air sampling group
Part includes being mounted on the indoor fan assembly 9 for air-breathing and exhaust of mono- chamber of shielding box A1, and be mounted on shielding box A1
Another chamber is indoor for detecting the carbon monoxide acquisition component 3 of carbonomonoxide concentration, realizing blower radiation shield and preventing
Quick-fried carbon monoxide acquisition；The sensor detection acquisition component is indoor for detecting including being mounted on mono- chamber of shielding box B2
The laser acquisition component 4 of smokescope, and it is mounted on the indoor collecting circuit board 8 of another chamber of shielding box B2, it realizes sharp
Optical detection component is anti-interference anti-interference with Acquisition Circuit；The collecting circuit board 8 by conducting wire respectively with fan assembly 9, one
Carbonoxide acquisition component 3, laser acquisition component 4, display circuit are connected according to circuit theory.
It is also set up between shielding box A1, the shielding box B2 and is communicated with filter 5,5 air inlet port of filter and shielding
The chamber of carbon monoxide acquisition component 3 is installed, 5 air outlet of filter is divided into the laser of two-way Yu shielding box B2 in box A1
4 place chamber of probe assembly, 4 place chamber of laser acquisition component also with 9 place chamber of shielding box A1 fan assembly.
As shown in figure 3, fan assembly 9 extracts sampled air from closed cabin by air inlet pipe 6, since two chambers connect
Logical, thieff hatch device enters the chamber where carbon monoxide acquisition component 4, the carbonomonoxide concentration in carbon monoxide acquisition component 4
Sensor can detect the carbonomonoxide concentration in sampled air, then sampled air by gas circuit hose 7 enter filter 5 into
Row filtering, filtered sampled air enter the chamber in shielding box B2 where laser acquisition component, filtered sampling all the way
The laser that smoke particle in air can be such that LASER Discharge Tube issues scatters, and photosensitive-member detects scattering light, and light is believed
Number it is converted into electric signal, is transferred to collecting circuit board 8, what the logic circuit on collecting circuit board 8 issued laser acquisition component
Data issue alarm signal after carrying out calculation process, and pass through display circuit display alarm information；4 place chamber of laser acquisition component
Indoor sampled air with the gas circuit hose 7 of 9 place chamber of fan assembly by blower by being extracted out, finally by escape pipe
Discharge；The photosensitive-member that the filtered sampled air another way of filter 5 can directly correspond to laser acquisition component 4 is blown
It sweeps, prevents smoke particle deposition from reducing the susceptibility of photosensitive-member, and be conducive to sampled air discharge 4 chamber of laser acquisition component
Body.
The foregoing is only a preferred embodiment of the present invention, these specific embodiments are all based on the present invention
Different implementations under general idea, and scope of protection of the present invention is not limited thereto, it is any to be familiar with the art
Technical staff in the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of, should all cover of the invention
Within protection scope.Therefore, the scope of protection of the invention shall be subject to the scope of protection specified in the patent claim.
Claims (3)
1. a kind of explosion-proof aspirating smoke detector of N-shaped, including shell and enclosure interior be arranged it is between the two by gas circuit and
Conducting wire connection shielding box A(1), shielding box B(2), which is characterized in that the shielding box A(1) built in air sampling component,
Shielding box B(2) built-in sensors detection acquisition component, the air sampling component is connected to be measured by installation air inlet pipe (6)
Gas part, also by install escape pipe detected after gas be discharged, air sampling component also pass through gas circuit hose (7) with
Sensor detects acquisition component and constitutes gas circuit circulation, and closure periphery flange and tightens achievable IP54 by bolt.
2. the explosion-proof aspirating smoke detector of N-shaped according to claim 1, which is characterized in that the shielding box A(1)
It is double cavity structure with shielding box B(2), and is connected between two-chamber, the air sampling component includes being mounted on shielding box A
The indoor fan assembly (9) for air-breathing and exhaust of (1) chamber, and be mounted on shielding box A(1) another chamber is indoor
For detecting the carbon monoxide acquisition component (3) of carbonomonoxide concentration；The sensor detection acquisition component includes being mounted on
Shielding box B(2) chamber is indoor for detecting the laser acquisition component (4) of smokescope, and is mounted on shielding box B(2)
The indoor collecting circuit board of another chamber (8), the collecting circuit board are aoxidized with fan assembly (8), one respectively by conducting wire
Carbon acquisition component (3), laser acquisition component (4), display circuit are connected according to circuit theory.
3. the explosion-proof aspirating smoke detector of N-shaped according to claim 1 or 2, which is characterized in that the shielding box A
(1), shielding box B(2) between also set up and be communicated with filter (5), filter (5) air inlet port and shielding box A(1) in installation one
The chamber of carbonoxide acquisition component (3), filter (5) air outlet are divided into two-way and shielding box B(2) laser acquisition group
Chamber where part (4), chamber also connects with chamber where shielding box A(1) fan assembly (9) where laser acquisition component (4)
It is logical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910392855.6A CN110009865A (en) | 2019-05-13 | 2019-05-13 | The explosion-proof aspirating smoke detector of N-shaped |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910392855.6A CN110009865A (en) | 2019-05-13 | 2019-05-13 | The explosion-proof aspirating smoke detector of N-shaped |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110009865A true CN110009865A (en) | 2019-07-12 |
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ID=67176604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910392855.6A Pending CN110009865A (en) | 2019-05-13 | 2019-05-13 | The explosion-proof aspirating smoke detector of N-shaped |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487880A (en) * | 2019-09-06 | 2019-11-22 | 贵州润可信息科技有限公司 | A kind of minitype gas detection unit |
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| US6285291B1 (en) * | 1996-05-03 | 2001-09-04 | Vision Products Pty. Ltd. | Detection of airborne pollutants |
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2019
- 2019-05-13 CN CN201910392855.6A patent/CN110009865A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487880A (en) * | 2019-09-06 | 2019-11-22 | 贵州润可信息科技有限公司 | A kind of minitype gas detection unit |
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