CN210895746U - Explosion-proof smoke, carbon monoxide and temperature composite detector - Google Patents
Explosion-proof smoke, carbon monoxide and temperature composite detector Download PDFInfo
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- CN210895746U CN210895746U CN201922141544.0U CN201922141544U CN210895746U CN 210895746 U CN210895746 U CN 210895746U CN 201922141544 U CN201922141544 U CN 201922141544U CN 210895746 U CN210895746 U CN 210895746U
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Abstract
The utility model discloses an explosion-proof smoke, carbon monoxide and temperature composite detector, which comprises an explosion-proof shell body, an explosion-proof shell cover body, a collecting circuit board, a smoke carbon monoxide probe and a temperature probe; the smoke carbon monoxide probe is arranged at the opening part at the top of the truncated cone-shaped base, the suction fan is arranged at the bottom of the truncated cone-shaped base, the explosion-proof shell cover body is provided with a first cavity, a plurality of air outlets leading to the outside are formed around the first cavity, and the bottom of the truncated cone-shaped base of the smoke carbon monoxide probe is connected with the opening side of the first cavity of the explosion-proof shell cover body to form a suction and discharge channel of a measured gas; the cover body of the explosion-proof shell covers the explosion-proof shell, a second cavity is arranged in the explosion-proof shell, a collecting circuit board is arranged in the second cavity, a temperature probe is arranged on the upper side or the lower side of the explosion-proof shell, and wire inlet and outlet ports are respectively arranged on two sides of the explosion-proof shell. The utility model discloses can solve the technical problem of compound detector's integrative structure overall arrangement of many probes.
Description
Technical Field
The utility model relates to a fire detection technology.
Background
The fire detection mainly uses smoke and red and ultraviolet as main detection objects. The single detection element and the single type of detector meet the requirement of accurately detecting the fire. The single element detection has high false alarm rate, because the fire disaster occurs, the fire disaster has more expression forms, some have open fire, and the smoke is less; when some fire occurs, only smoke exists, and open fire does not exist; there are also cases of both smoke and open fire. Therefore, the single-element detection has certain limitation in the aspects of accuracy and false alarm rate. The composite detector is used for fire detection, can realize accurate fire early warning through multi-parameter detection, and simultaneously reduces the false alarm rate.
Smoke detection, as the name implies, can detect the concentration of smoke. And carbon monoxide CO detection can be realized. The temperature detection can detect the ambient temperature, and whether a fire disaster happens or not is reflected according to the rapid change condition of the ambient temperature by detecting the ambient temperature. Because the temperature is always increased along with the occurrence of the fire, and the temperature changes rapidly, the fire is monitored through the temperature and the change rate of the temperature, and the heat characteristic of the fire can be reflected more accurately.
Disclosure of Invention
The utility model aims at providing an explosion-proof type smog, carbon monoxide and temperature composite detector to solve the technical problem of the integrative structural configuration of many probes of composite detector.
In order to achieve the above purpose, the technical solution adopted by the present invention is as follows:
an explosion-proof smoke, carbon monoxide and temperature composite detector comprises an explosion-proof shell, an explosion-proof shell cover body, a collecting circuit board, a smoke carbon monoxide probe and a temperature probe; the smoke carbon monoxide probe is arranged at the opening part at the top of the truncated cone-shaped base, the suction fan is arranged at the bottom of the truncated cone-shaped base, the explosion-proof shell cover body is provided with a first cavity, a plurality of air outlets leading to the outside are formed around the first cavity, and the bottom of the truncated cone-shaped base of the smoke carbon monoxide probe is connected with the opening side of the first cavity of the explosion-proof shell cover body to form a suction and discharge channel of a measured gas; the cover body of the explosion-proof shell covers the explosion-proof shell, a second cavity is arranged in the explosion-proof shell, a collecting circuit board is arranged in the second cavity, a temperature probe is arranged on the upper side or the lower side of the explosion-proof shell, and wire inlet and outlet ports are respectively arranged on two sides of the explosion-proof shell.
The temperature probe is fixed on the explosion-proof shell through the temperature probe protective cover.
The smoke and carbon monoxide CO probe is arranged behind a round table-shaped base above the outer part of the explosion-proof shell and is fastened to the cover body of the explosion-proof shell through a cross-shaped hoop, the fan is arranged in a first cavity in the explosion-proof cover body, and the fan, the smoke and carbon monoxide CO probe are all in intrinsic safety design; the signal wire is connected to the acquisition circuit board of the second cavity in the explosion-proof shell through the stuffing box.
The temperature probe is arranged at the stuffing box on the explosion-proof shell, and the signal wire is connected to the acquisition board in the explosion-proof shell through the stuffing box.
The temperature probe adopts two high-precision and high-sensitivity platinum resistors, and a protective cover outside the probe is in a threaded hollow shape.
The utility model has the advantages that:
1) the device for multi-parameter detection is provided, and the high sensitivity and low false alarm rate can be realized through multi-parameter comprehensive fire early warning:
2) the response speed is high, and the early fire disaster rapid detection capability is realized;
3) the method is suitable for air-breathing active detection in high and large space:
4) the explosion-proof and intrinsic safety device is suitable for the explosion-proof and intrinsic safety characteristics of dangerous occasions.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an exploded view of the components of the present invention.
Fig. 3 is a schematic block diagram of an embodiment of the circuit board of the present invention.
Numbering in the figures: 1. smog and carbon monoxide probe, 2, explosion proof shell lid, 3, outlet, 4, temperature probe safety cover, 5, temperature probe, 6, inlet, 7, collection circuit board, 8, the fan of breathing in, 9, cross clamp, 10, explosion proof housing.
Detailed Description
The structure of the utility model is shown in the figures 1 and 2. An explosion-proof smoke, carbon monoxide and temperature composite detector comprises an explosion-proof shell, an explosion-proof shell cover body, a collecting circuit board, a smoke carbon monoxide probe and a temperature probe; the smoke carbon monoxide probe is arranged at the opening part at the top of the truncated cone-shaped base, the suction fan is arranged at the bottom of the truncated cone-shaped base, the explosion-proof shell cover body is provided with a first cavity, a plurality of air outlets leading to the outside are formed around the first cavity, and the bottom of the truncated cone-shaped base of the smoke carbon monoxide probe is connected with the opening side of the first cavity of the explosion-proof shell cover body to form a suction and discharge channel of a measured gas; the cover body of the explosion-proof shell covers the explosion-proof shell, a second cavity is arranged in the explosion-proof shell, a collecting circuit board is arranged in the second cavity, a temperature probe is arranged on the upper side or the lower side of the explosion-proof shell, and wire inlet and outlet ports are respectively arranged on two sides of the explosion-proof shell.
And a carbon monoxide CO and smoke probe for sensing the concentration of the carbon monoxide CO and the smoke. The fan is mainly used for actively sucking air to realize active detection, can actively suck ambient gas into the probe, realizes quick response through active air suction, has better activity than passive sensing, and can actively and early detect. The input of the smoke and carbon monoxide CO detector head is 24VDC for power supply, the signal data transmission is a standard two-wire system, and the acquired concentration data can be uploaded to the acquisition circuit board in time. The probe is an explosion-proof intrinsic safety probe and can be directly connected to a safety barrier circuit of the acquisition circuit board.
The temperature probe adopts two platinum resistors with high precision and high sensitivity. The probe is externally provided with a threaded hollow-out protective cover, the protective cover can effectively protect the platinum resistor in the probe from being damaged by the touch of an external object, and meanwhile, the platinum resistor can be ensured to be fully contacted with the surrounding environment gas, and the detection speed cannot be influenced. The probe is a simple component that can be directly connected to the barrier circuit on the acquisition circuit board.
The acquisition circuit board realizes the collection of probe data (smog and carbon monoxide CO probe, temperature probe), judges the data of gathering, according to the smog concentration that detects, carbon monoxide concentration to and ambient temperature's quick change condition, whether the reaction has the conflagration to take place, and then gives fire alarm information, gives user or other systems alarm information transmission through the CAN bus. A safety barrier circuit is designed on the acquisition circuit board and can be connected with an external intrinsic safety type smoke and carbon monoxide CO probe and a temperature probe. The collection circuit board is arranged inside the explosion-proof shell and is designed for explosion suppression.
The smoke and carbon monoxide CO probe is arranged at the upper position outside the explosion-proof shell and is fastened to the U-shaped explosion-proof cover body through the cross-shaped hoop. The fan is installed inside the explosion-proof cover of U-shaped, and this fan, smog and carbon monoxide CO probe are the ann design, and the signal line is connected to the inside safety barrier circuit on the collection circuit board of explosion-proof casing through the packing box, and the collection circuit board is installed in explosion-proof casing.
The temperature probe is arranged at a stuffing box on the explosion-proof shell, and the signal wire is connected to a safety barrier circuit of an acquisition circuit board in the explosion-proof shell through the stuffing box.
An embodiment of a circuit on the acquisition circuit board can be seen in fig. 3. This circuit is only an embodiment and does not exclude other circuit ways. Since it is not an object of the present invention, a person skilled in the art can design a circuit or the like according to the structure of the present invention, and therefore, the detailed description thereof will be omitted.
Claims (5)
1. An explosion-proof smoke, carbon monoxide and temperature composite detector is characterized by comprising an explosion-proof shell, an explosion-proof shell cover body, a collecting circuit board, a smoke carbon monoxide probe and a temperature probe; the smoke carbon monoxide probe is arranged at the opening part at the top of the truncated cone-shaped base, the suction fan is arranged at the bottom of the truncated cone-shaped base, the explosion-proof shell cover body is provided with a first cavity, a plurality of air outlets leading to the outside are formed around the first cavity, and the bottom of the truncated cone-shaped base of the smoke carbon monoxide probe is connected with the opening side of the first cavity of the explosion-proof shell cover body to form a suction and discharge channel of a measured gas; the cover body of the explosion-proof shell covers the explosion-proof shell, a second cavity is arranged in the explosion-proof shell, a collecting circuit board is arranged in the second cavity, a temperature probe is arranged on the upper side or the lower side of the explosion-proof shell, and wire inlet and outlet ports are respectively arranged on two sides of the explosion-proof shell.
2. An explosion proof smoke and carbon monoxide and temperature composite detector as claimed in claim 1 wherein said temperature probe is secured to the explosion proof housing by a temperature probe protective cover.
3. An explosion-proof smoke and carbon monoxide and temperature composite detector as claimed in claim 1, wherein the smoke and carbon monoxide probe is mounted behind a truncated cone-shaped base above the exterior of the explosion-proof shell and then fastened to the cover of the explosion-proof shell through a cross-shaped hoop, the blower is mounted in a first cavity inside the explosion-proof cover, and the blower, the smoke and carbon monoxide CO probe are all intrinsically safe; the signal wire is connected to the acquisition circuit board of the second cavity in the explosion-proof shell through the stuffing box.
4. An explosion proof smoke, carbon monoxide and temperature composite detector as claimed in claim 1 or 2, wherein the temperature probe is mounted at a stuffing box on the explosion proof housing, and the signal line is connected to the collecting plate in the explosion proof housing through the stuffing box.
5. An explosion-proof smoke, carbon monoxide and temperature composite detector as claimed in claim 1 or 2, wherein the temperature probe is composed of two high-precision and high-sensitivity platinum resistors, and the protective cover outside the probe is in a threaded hollow shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922141544.0U CN210895746U (en) | 2019-12-04 | 2019-12-04 | Explosion-proof smoke, carbon monoxide and temperature composite detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922141544.0U CN210895746U (en) | 2019-12-04 | 2019-12-04 | Explosion-proof smoke, carbon monoxide and temperature composite detector |
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| Publication Number | Publication Date |
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| CN210895746U true CN210895746U (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922141544.0U Active CN210895746U (en) | 2019-12-04 | 2019-12-04 | Explosion-proof smoke, carbon monoxide and temperature composite detector |
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Cited By (1)
| 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 |
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2019
- 2019-12-04 CN CN201922141544.0U patent/CN210895746U/en active Active
Cited By (1)
| 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 |
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