CN217386470U - Compound fire detector of flue gas - Google Patents

Abstract

The utility model provides a pair of compound fire detector of flue gas, comprising a base body, its surface is provided with a plurality of guide type flues, inside gas detection ware and smoke detector set up, because the diameter of guide type flue reduces gradually, adopt tubaeform structure to make the flue gas flow with higher speed, smoke flow resistance has been reduced, the sensitivity and the response speed of detector have been improved, adopt gas detection ware and smoke detector to survey the conflagration simultaneously, avoid appearing the phenomenon that the conflagration was missed to report, prevent stretching and enlarging of the intensity of a fire effectively, avoid taking place casualties or loss of property.

Description

Compound fire detector of flue gas

Technical Field

The utility model relates to a fire detection technical field specifically is a compound fire detector of flue gas.

Background

In the modern society, fire accidents emerge endlessly, and pose a great threat to the normal production and life of people. With the development of social economy and the gradual improvement of fire fighting consciousness of people, the installation of wireless fire alarm equipment for preventing fire from happening becomes more and more popular, fire alarms comprise smoke, temperature, gas and flame fire detectors, and various fire detectors are generally installed in monitoring areas according to fire regulations to detect various types of fire.

However, many detectors are installed in one area, which is very easy to cause false alarm, such as smoke caused by cleaning and smoke generated during cooking, and is easy to cause a smoke alarm to give an alarm, and for example, hot air generated by air conditioner heating directly passes through a temperature alarm, which is easy to cause a temperature alarm to give an alarm, and simultaneously, the phenomenon of false alarm is easy to occur.

In order to solve the problems, a smoke composite fire detector is needed to realize accurate fire detection and alarm.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model provides a compound fire detector of flue gas realizes accurate fire detection and reports to the police, avoids appearing the wrong report problem.

The utility model discloses a realize through following technical scheme:

a smoke composite fire detector comprises a base body, a smoke detector, a gas detector and a supporting plate;

the base member is the annular confined hollow structure, and the circumference equipartition has a plurality of guide formula flues on the lateral wall of base member, and the backup pad setting is in the bottom of base member, is provided with the circuit board in the backup pad, circuit board electric connection controller, smoke detector and gas detector set up the inside at the base member, and smoke detector is located around the guide formula flue export, and smoke detector and gas detector are connected with the controller respectively, and the base rigid coupling is at the lower extreme of base member, and the apron setting is at the top of base member.

Preferably, the guide flue is of a horn-shaped structure, one end with a large diameter is located on the side wall of the base body and communicated with the outside, and the other end extends to the inside of the base body.

Preferably, the guiding flue is a rotating body with a curvature radius R of 120-200 mm, the aperture of the guiding flue is gradually reduced from the inlet of the flue gas to the outlet of the flue gas, and the diameter of the inlet of the flue gas is 2-3 times of that of the outlet.

Preferably, the smoke detector is an ionic smoke sensor or a photoelectric smoke sensor.

Preferably, the gas detector is a catalytic combustion type sensor, an electrochemical sensor, or a semiconductor type sensor for detecting the concentration of gas generated when a fire breaks out.

Preferably, still be provided with alarm and warning light on the base member, the alarm sets up in the base member and is connected with the controller, and the warning light is connected with the controller and sets up on the top surface of base member.

Preferably, the warning light comprises a working indicator light, an alarm indicator light and a fault indicator light.

Preferably, the top of the base body is provided with a cover plate, and the bottom of the base body is provided with a base.

Compared with the prior art, the utility model discloses following profitable technological effect has:

the utility model provides a pair of compound fire detector of flue gas, comprising a base body, its surface is provided with a plurality of guide flues, inside gas detection ware and the smoke detector of setting up, because the diameter of guide flue reduces gradually, adopt tubaeform structure to make the flue gas flow with higher speed, smoke flow resistance has been reduced, the sensitivity and the corresponding speed of detector have been improved, adopt gas detection ware and smoke detector to survey the conflagration simultaneously, avoid appearing the phenomenon that the conflagration was reported with missing, prevent stretching and expanding of intensity of a fire effectively, avoid taking place casualties or loss of property.

Drawings

FIG. 1 is an internal structure diagram of the smoke composite fire detector of the present invention;

fig. 2 is a top view of the composite smoke fire detector of the present invention.

In the figure: 1. a warning light; 2. a cover plate; 4. a substrate; 5. a gas detector; 6. a smoke detector; 7. a support plate; 8. a base.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings, which are provided for purposes of illustration and not limitation.

Referring to fig. 1 and 2, a smoke composite fire detector includes a base 4, a cover plate 2, a smoke detector 6, a gas detector 5, a support plate 7, and a base 8.

Base member 4 is the annular confined hollow structure, the circumference equipartition has a plurality of guide formula flues on the lateral wall of base member 4, the backup pad sets up the bottom at the base member, be provided with the circuit board in the backup pad, circuit board electrical connection director, smoke detector 6 and gas detector 5 set up the inside at base member 4, smoke detector 6 is located around the guide formula flue export, smoke detector 6 and gas detector 5 are connected with the controller respectively, 8 rigid couplings of base are at the lower extreme of base member, apron 2 sets up the top at the base member.

The utility model discloses a detector, including base member, guiding flue, the inlet of flue gas, guiding flue, the diameter of guiding flue is 120 ~ 200 mm's rotator, the diameter of guiding flue is 2-3 times of outlet end diameter, the flue gas gets into the back from the inlet end of guiding flue, because the diameter of guiding flue reduces gradually, adopt tubaeform structure to make the flue gas flow with higher speed, smoke flow resistance has been reduced, the sensitivity and the corresponding speed of detector have been improved.

The smoke detector comprises a smoke detection labyrinth, an infrared transmitting element and an infrared receiving element, wherein the infrared transmitting element is arranged in the smoke detection labyrinth, and the infrared transmitting element and the infrared receiving element are connected with an alarm output terminal for outputting an alarm signal. The infrared transmitting element adopts an infrared transmitting tube, the infrared receiving element adopts a photosensitive tube, the smoke detection module detects a labyrinth through smoke, an infrared light beam of the infrared transmitting tube is scattered by smoke particles, the intensity of scattered light is in direct proportion to the concentration of smoke, the intensity of the infrared light beam received by the photosensitive tube can be changed and converted into a point signal, and then the point signal is converted into an alarm signal to output a fire alarm signal.

The smoke detector is an ion smoke sensor or a photoelectric smoke sensor.

The gas detector 5 is a catalytic combustion type sensor, an electrochemical sensor, or a semiconductor type sensor, and detects the concentration of gas generated when a fire breaks out.

Still be provided with alarm and warning light 1 on this base member, the alarm setting is connected in the base member and with the controller, and warning light 1 is connected with the controller and sets up on the top surface of base member, and the warning light is used for instructing the operating condition of compound fire detector of flue gas, and the alarm is used for exporting the audible-visual annunciator of conflagration, still is provided with the group battery on the base for provide electric power to controller, alarm and pilot lamp.

The warning light 1 comprises a working indicator light, an alarm indicator light and a fault indicator light, when fire does not occur, the working indicator light is turned on, when the smoke composite fire detector fails, the fault indicator light is turned on, and when the fire occurs in a monitoring area, the alarm indicator light is turned on.

The controller is a PLC programmable logic controller.

When the smoke composite fire detector works, the smoke detector and the gas detector respectively detect the smoke particle concentration and the gas concentration in a monitoring area, the obtained detection values are sent to the controller for judgment, a normal smoke threshold value and a normal gas concentration threshold value are preset in the controller, when a fire disaster occurs, the smoke concentration and the gas concentration in the monitoring area rise, the smoke concentration and the gas concentration in the fire disaster are respectively monitored by the smoke detector and the gas detector, the controller makes analysis and judgment, when the smoke concentration and the gas concentration in the monitoring area are in the range of the set threshold value, the alarm unit does not output an alarm signal, when the smoke concentration or/and the gas concentration exceed the range of the set threshold value, the alarm unit outputs the alarm signal, and the alarm starts to generate an audible and visual alarm signal, so that personnel are reminded of timely carrying out cooling treatment or fire extinguishing, effectively prevent the spread and expansion of fire and avoid the occurrence of casualties or property loss.

The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.

Claims (8)

1. A smoke composite fire detector is characterized by comprising a base body (4), a smoke detector (6), a gas detector (5) and a supporting plate (7);

base member (4) are hoop confined hollow structure, the circumference equipartition has a plurality of guide formula flues on the lateral wall of base member (4), the backup pad sets up the bottom at the base member, be provided with the circuit board in the backup pad, circuit board electric connection director, smoke detector (6) and gas detector (5) set up the inside at base member (4), smoke detector (6) are located around the guide formula flue export, smoke detector (6) and gas detector (5) are connected with the controller respectively, base (8) rigid coupling is at the lower extreme of base member, apron (2) set up the top at the base member.

2. The smoke composite fire detector according to claim 1, wherein the guiding flue is of a trumpet-shaped structure, one end with a large diameter is positioned on the side wall of the base body and communicated with the outside, and the other end extends to the inside of the base body.

3. The smoke composite fire detector according to claim 2, wherein the guiding flue is a rotating body with a curvature radius R of 120-200 mm, the diameter of the guiding flue is gradually reduced from the entrance of the smoke to the exit of the smoke, and the diameter of the smoke entrance is 2-3 times of the diameter of the exit.

4. The smoke composite fire detector of claim 1, wherein said smoke detector is an ionic smoke sensor or a photoelectric smoke sensor.

5. The smoke composite fire detector according to claim 2, wherein the gas detector (5) is a catalytic combustion type sensor, an electrochemical sensor or a semiconductor type sensor for detecting the concentration of gas generated in the event of fire.

6. The smoke composite fire detector according to claim 1, wherein the base body is further provided with an alarm and a warning lamp (1), the alarm is arranged in the base body and connected with the controller, and the warning lamp (1) is connected with the controller and arranged on the outer surface of the top of the base body.

7. A smoke composite fire detector according to claim 6, characterised in that said smoke composite fire detector

The warning lamp (1) comprises a working indicator lamp, an alarm indicator lamp and a fault indicator lamp.

8. The smoke composite fire detector according to claim 1, wherein the base body is provided with a cover plate at the top and a base at the bottom.

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