CN210220162U

CN210220162U - Smoke detection system

Info

Publication number: CN210220162U
Application number: CN201921124834.8U
Authority: CN
Inventors: Liwei Li; 李丽伟; Ziheng Li; 李自恒
Original assignee: Hebei Pusheng Safety Technology Engineering Co Ltd
Current assignee: Hebei Pusheng Safety Technology Engineering Co Ltd
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-03-31
Anticipated expiration: 2029-07-17

Abstract

The utility model relates to a technical field of fire control safety, concretely relates to smoke detection system, including a plurality of smog detection areas, every smog detection area all is provided with controller and multiunit alarm detection device, every group alarm detection device all includes smoke alarm, blast apparatus, temperature sensor and fume extractor, and a plurality of the signal output part of smoke alarm and a plurality of temperature sensor of every smog detection area equally divide and do not be connected with the signal input part of controller, and a plurality of the blast apparatus of every smog detection area and a plurality of the signal input part of fume extractor equally divide and do not be connected with the signal output part of controller, blast apparatus is fixed to be set up above smoke alarm and can blow downwards, fume extractor is fixed to be set up above blast apparatus and can upwards exhaust; the utility model discloses have the effect of accelerating smog and discharging, for the adjacent region cooling in combustion area, can prolong the person's of fleing's time of fleing relatively.

Description

Smoke detection system

Technical Field

The utility model relates to a fire control safety's technical field, concretely relates to smog detecting system.

Background

In order to avoid or reduce the harm caused by indoor fire, at present, devices sensing fire occurrence such as a smoke alarm system, a smoke detection system and the like are generally installed in residential buildings and commercial buildings. The existing smoke alarm or detection system senses indoor smoke conditions through a smoke alarm, and can give an alarm after exceeding standards to remind people in a building so as to timely treat or escape.

When a fire occurs, the most fatal is smoke, the smoke can stab the eyes of a victim and enter the respiratory tract of the victim, and the serious result is that the victim is unconscious and loses the escape capacity. However, the smoke alarm system in the prior art can only sense smoke and give an alarm, and cannot reduce the indoor smoke concentration as soon as possible, so that a relatively longer escape time cannot be provided for an escaper. In earlier stage of fire, only a small part of burning area generally exists, and adjacent unburned regional temperature can rise gradually, and spray set can not trigger when not reaching spray set's fire-resistant limit, therefore adjacent unburned regional temperature can not in time descend to the stretching of intensity of a fire has been accelerated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a smog detecting system has the effect of accelerating smog and discharging, for the adjacent region cooling in combustion area, has prolonged the time of fleing of fleeing for one's life relatively.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a smoke detection system, includes a plurality of smog detection areas, every smog detection area all is provided with controller and multiunit alarm detection device, every group alarm detection device all includes smoke alarm, blast apparatus, temperature sensor and fume extractor, and every smog detection area is a plurality of smoke alarm and a plurality of temperature sensor's signal output part is equallyd divide and is do not be connected with the signal input part of controller, and every smog detection area is a plurality of blast apparatus and a plurality of fume extractor's signal input part is equallyd divide and is do not be connected with the signal output part of controller, blast apparatus is fixed to be set up in smoke alarm top and can blow downwards, fume extractor is fixed to be set up in blast apparatus's top and can upwards air exhaust.

By adopting the technical scheme, the smoke detection areas are divided according to specific patterns in different buildings, for example, in a residential building, each hall can be used as a smoke detection area; in a commercial building, the area of a room is divided into two or more areas, and the area is generally within one hundred square meters as a smoke detection area. Taking a smoke detection zone as an example: when a fire disaster happens, the smoke alarm sends an alarm after detecting smoke and transmits a signal to the controller, the controller receives the signal and analyzes the signal and sends an instruction to the smoke exhaust device to control the smoke exhaust device to start, so that the indoor smoke is exhausted upwards to the outdoor through the smoke exhaust device, and the indoor smoke concentration can be reduced as soon as possible; temperature sensor that other smoke alarm that does not send out the police dispatch newspaper department in this detection zone detects indoor temperature, if temperature more than or equal to 50 ℃, then the controller received the signal and the analysis processes the back, can send the instruction to blast apparatus, and control blast apparatus starts, makes it to unburnt and the regional heat dissipation of blowing of smokeless fog, does benefit to the ventilation cooling in this region to can slow down the speed of stretching of intensity of a fire relatively, prolong the escape person's time of fleing relatively.

Preferably, the blowing device comprises a blowing chamber with a hollow shell structure and a blowing fan arranged on the top wall of the blowing chamber, the bottom end of the blowing chamber is fixedly connected with the smoke alarm, and the blowing chamber is communicated with the inside of the smoke alarm.

Through adopting above-mentioned technical scheme, the fan of blowing is by controller automatic control to the wind that the fan of realizing blowing blows flows into smoke alarm from the room of blowing and blows to indoor, realizes the heat dissipation of blowing indoor.

Preferably, the smoke exhaust device comprises a smoke exhaust chamber with a hollow shell structure and an exhaust fan arranged on the top wall of the smoke exhaust chamber, the bottom end of the smoke exhaust chamber is fixedly connected with the top end of the air blowing chamber, the top end of the smoke exhaust chamber is connected with a smoke exhaust pipe, and an automatic opening and closing door device is arranged between the smoke exhaust chamber and the air blowing chamber.

By adopting the technical scheme, when a fire disaster occurs, the motor of the exhaust fan is automatically started under the control of the controller, indoor smoke is sequentially sucked into the smoke alarm, the air blowing chamber and the smoke exhaust chamber by the exhaust fan from the indoor space, and finally the smoke is exhausted from the smoke exhaust pipe, so that the smoke exhaust is realized.

Preferably, a partition plate is fixedly arranged between the smoke exhaust chamber and the blowing chamber, a square through hole is formed in the partition plate, and the door opening and closing device is arranged on the partition plate and can automatically open or close the through hole.

By adopting the technical scheme, the door device is opened and closed, so that the through hole is in a blocking state when a fire disaster does not happen, namely, the smoke exhaust chamber and the blowing chamber are separated, and the indoor environment is not influenced by the outdoor environment.

Preferably, the door opening and closing device comprises a rack fixedly arranged on one side of the through hole in the partition plate, a door plate capable of covering the through hole, a micro motor fixedly arranged on the door plate and a gear in driving connection with the micro motor, wherein the gear is meshed with the rack, the door plate can slide along the surface of the partition plate, and the signal input end of the micro motor is connected with the signal output end of the controller.

By adopting the technical scheme, the micro motor is controlled by the controller, and when the micro motor is started, the gear is driven to rotate along the rack, the door plate is driven to slide along the partition plate, so that the door plate is moved away from the through hole, and the air blowing chamber is communicated with the smoke exhaust chamber.

Preferably, the area of the door panel is larger than that of the through hole, and when the door panel covers the through hole, the periphery of the door panel is wider than the through hole.

Through adopting above-mentioned technical scheme, guarantee that the door plant can be with through-hole lid tight, avoid the indoor environment to receive outdoor environment's influence.

Preferably, a guide rail is integrally arranged on one side, away from the rack, of the through hole on the partition board, and a sliding groove in sliding connection with the guide rail is formed in the bottom surface of the door panel.

Through adopting above-mentioned technical scheme, the spout card slides on the guide rail, and the gear engagement rack of opposite side makes the door plant slip in-process more stable, can not the off tracking, guarantees that the door plant can be quick opening smoothly to make the intercommunication that blows wind room and smoke exhaust chamber as early as possible smooth, do benefit to discharging as early as possible of smog.

Preferably, the two ends of the rack in the length direction are integrally provided with a limit plate for stopping the gear from separating from the rack.

Through adopting above-mentioned technical scheme, the setting of limiting plate can prevent that the rack from rotating excessively and producing the unnecessary displacement, guarantees to accomplish the control that opens and shuts of door plant to the through-hole in shortest route and time.

Preferably, the door plate is fixedly connected with a vertical plate, and the micro motor is installed on the vertical plate.

By adopting the technical scheme, the gear rotates along the rack, and the micro motor can drive the door plate to move together.

Preferably, the temperature sensor is mounted at the bottom end of the smoke alarm and the probe thereof is exposed to the outside of the smoke alarm.

By adopting the technical scheme, the temperature sensor can accurately sense the indoor temperature, and is convenient for timely transmitting signals to the controller.

To sum up, the utility model discloses following beneficial effect has:

(1) by arranging a plurality of smoke detection areas, each detection area is independently controlled, smoke exhaust and air blowing heat dissipation are carried out according to specific indoor fire conditions, the indoor smoke concentration and temperature can be relatively reduced, and the escape time of an escaper is relatively prolonged;

(2) the air blowing device and the smoke discharging device are controlled independently, and the controller determines whether to blow air or discharge smoke according to different fire conditions, so that intelligent control is realized;

(3) the opening and closing of the door plate to the through hole are controlled through the controller, the smoke exhaust chamber is communicated with the air blowing chamber when smoke is exhausted, the smoke exhaust chamber and the air blowing chamber are separated when the smoke is not exhausted, and the indoor environment is not affected by the outdoor environment in a normal state.

Drawings

Fig. 1 is a schematic view of the overall structure of the alarm detection device of the present invention;

FIG. 2 is a schematic diagram of the internal structure of the alarm detection device;

FIG. 3 is a schematic view of the internal structure of the alarm detection device when the door panel is in an open state;

fig. 4 is an enlarged schematic view of a portion a in fig. 3.

Reference numerals: 1. a smoke alarm; 2. a temperature sensor; 31. an air blowing chamber; 32. a blower fan; 33. separating the net; 41. a smoke exhaust chamber; 42. an exhaust fan; 43. a smoke exhaust pipe; 5. a partition plate; 51. a through hole; 61. a rack; 62. a door panel; 621. a vertical plate; 622. a chute; 63. a micro motor; 64. a gear; 7. a limiting plate; 8. a guide rail.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

The utility model discloses a smoke detection system sets up in the building for the indoor smog condition of real-time detection, and send out the police dispatch newspaper or discharge fume or the radiating action of blowing. According to indoor area carry out the zone division, set for a plurality of smog detection areas, generally use one hundred square meters as the biggest unit of a smog detection area, every smog detection area all is provided with controller and multiunit alarm detection device. As shown in fig. 1 and 2, each set of alarm detection devices comprises a smoke alarm 1, a blowing device, a temperature sensor 2 and a smoke exhaust device, wherein the temperature sensor 2 is installed at the bottom end of the smoke alarm 1, and a probe of the temperature sensor is exposed outside the smoke alarm 1, so that the indoor temperature can be sensed. The signal output ends of the smoke alarms 1 and the temperature sensors 2 in each smoke detection area are respectively connected with the signal input end of the controller, so that the controller can respectively receive signals of the smoke alarms 1 and the temperature sensors 2. The blowing device is positioned above the smoke alarm 1, and the smoke exhaust device is positioned above the blowing device.

As shown in fig. 2, the blowing device includes a blowing chamber 31 of a cylindrical hollow housing structure and a micro blowing fan 32 mounted on the top wall of the blowing chamber 31, the bottom end of the blowing chamber 31 is integrally connected to the smoke alarm 1, and the blowing chamber 31 and the smoke alarm 1 are communicated through a partition net 33, so that air flow and smoke can be circulated therebetween. The smoke alarm 1 is a prior art smoke alarm 1 and will not be described in detail here, and its internal structure is not shown in fig. 2 and 3. The controller is a PLC controller and is arranged in the blowing chamber 31 of any one alarm detection device of the corresponding smoke detection area. The driving motors of the blowing fans 32 of the blowing devices of each smoke detection zone are connected to the signal output terminal of the controller, so that the controller can control each blowing fan 32 separately. The smoke exhaust device comprises a cylindrical smoke exhaust chamber 41 with a hollow shell structure and a miniature exhaust fan 42 arranged on the top wall of the smoke exhaust chamber 41, wherein the bottom end of the smoke exhaust chamber 41 is integrally connected with the top end of the air blowing chamber 31, the top end of the smoke exhaust chamber is connected with a smoke exhaust pipe 43, and the exhaust end of the smoke exhaust pipe 43 extends out of the room, so that indoor smoke can be exhausted from the smoke exhaust pipe 43. The drive motors of the exhaust fans 42 of the plurality of fume extractors in each smoke detection zone are connected to the signal output of the controller so that the controller can control each exhaust fan 42 separately.

As shown in fig. 3 and 4, an opening and closing door device for automatically opening and closing is provided between the smoke exhaust chamber 41 and the air blowing chamber 31 so that the smoke exhaust chamber 41 can exhaust smoke when a fire occurs and the smoke exhaust chamber 41 and the air blowing chamber 31 can be separated from each other without interfering with each other when a fire does not occur. The door opening and closing device is arranged on a partition plate 5 integrally connected between the smoke exhaust chamber 41 and the blowing chamber 31, a square through hole 51 is formed in the partition plate 5, and the door opening and closing device can be automatically opened or closed to close or open the through hole 51. The door opening and closing device comprises a rack 61 fixedly arranged on one side of the through hole 51 on the partition plate 5, a door plate 62 capable of covering the upper part of the through hole 51, a micro motor 63 fixedly arranged on the door plate 62 and a gear 64, wherein the signal input end of the micro motor 63 is connected with the signal output end of the controller. The gear 64 is meshed with the rack 61, the two ends of the rack 61 in the length direction are integrally provided with the limiting plates 7 for blocking the gear 64 from being separated from the rack 61, and the limit effect on the stroke of the micro motor 63 can be further achieved by matching the control of the controller. Fixedly connected with riser 621 on the door plant 62, micro motor 63 is vertical to be installed on riser 621 and the output shaft is vertical downwards and with gear 64 fixed connection to make micro motor 63 can drive gear 64 and rotate along rack 61, and drive the surface that door plant 62 can follow baffle 5 and slide.

As shown in fig. 4, the area of the door panel 62 is larger than that of the through hole 51, and when the door panel 62 covers the through hole 51, the periphery of the door panel 62 is wider than the through hole 51, so that the through hole 51 can be covered tightly. The baffle 5 is provided with the guide rail 8 in the one side of through-hole 51 far away from rack 61 an organic whole, and the spout 622 with guide rail 8 sliding connection is seted up to the bottom surface of door plant 62, and when door plant 62 moved on baffle 5, guide rail 8 card was in spout 622, and gear 64 and rack 61 mesh made the moving trajectory of door plant 62 more stable. In order to make the door panel 62 more stable, the density of the end of the door panel 62 far away from the micro motor 63 is greater than that of the end close to the micro motor 63, so that when the micro motor 63 is fixed at one end of the door panel 62, the other end of the door panel 63 does not tilt.

Use the utility model discloses a smog detection zone explains as an example, and its implementation principle specifically is:

the program of the controller is preset, so that the smoke alarm 1 of at least one alarm detection device in the smoke detection area gives an alarm, the temperature sensed by the temperature sensor 2 of one or more other alarm detection devices is higher than or equal to 50 ℃, the two conditions are met simultaneously, and the controller sends an instruction to the blowing fan 32 of the alarm detection device sensing the temperature higher than or equal to 50 ℃ to blow air to the room for heat dissipation. It should be noted that if the smoke alarm 1 of the alarm detection device sensing the temperature greater than or equal to 50 ℃ gives an alarm, the blowing fan 32 of the alarm detection device will not be given an instruction to turn on, so as to mainly discharge smoke, if the smoke alarm 1 gives an alarm, it indicates that the smoke concentration is high, and if the smoke alarm blows indoors, it is not beneficial for the escaping of the escaper.

When a fire occurs, the exhaust fan 42 of the alarm detection device which gives an alarm by the smoke alarm 1 is instructed and started by the controller, so that smoke can be exhausted outdoors as soon as possible; the controller receives signals of all the alarm detection devices and controls the blowing fan 32 to start according to a preset program, so that heat is blown indoors to dissipate heat, the temperature below the alarm detection devices is relatively reduced, the risk of fire spreading is reduced, and accordingly relatively long escape time is provided for escapers.

The above-mentioned embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws and protection within the scope of the present invention.

Claims

1. A smoke detection system, characterized by: including a plurality of smog detection areas, every smog detection area all is provided with controller and multiunit alarm detection device, every group alarm detection device all includes smoke alarm ware (1), blast apparatus, temperature sensor (2) and fume extractor, and every smog detection area is a plurality of smoke alarm ware (1) and a plurality of temperature sensor (2)'s signal output part is equallyd divide and is do not be connected with the signal input part of controller, and every smog detection area is a plurality of blast apparatus and a plurality of fume extractor's signal input part is equallyd divide and is do not be connected with the signal output part of controller, blast apparatus is fixed to be set up in smoke alarm ware (1) top and can blow downwards, fume extractor is fixed to be set up in blast apparatus's top and can upwards air exhaust.

2. The smoke detection system of claim 1, wherein: the blowing device comprises a blowing chamber (31) of a hollow shell structure and a blowing fan (32) installed on the top wall of the blowing chamber (31), the bottom end of the blowing chamber (31) is fixedly connected with the smoke alarm (1), and the blowing chamber (31) is communicated with the inside of the smoke alarm (1).

3. The smoke detection system of claim 1, wherein: the smoke exhaust device comprises a smoke exhaust chamber (41) with a hollow shell structure and an exhaust fan (42) arranged on the top wall of the smoke exhaust chamber (41), the bottom end of the smoke exhaust chamber (41) is fixedly connected with the top end of the air blowing chamber (31), the top end of the smoke exhaust chamber is connected with a smoke exhaust pipe (43), and an automatic opening and closing door opening and closing device is arranged between the smoke exhaust chamber (41) and the air blowing chamber (31).

4. A smoke detection system according to claim 3, wherein: a partition plate (5) is fixedly arranged between the smoke exhaust chamber (41) and the blowing chamber (31), a square through hole (51) is formed in the partition plate (5), and the door opening and closing device is arranged on the partition plate (5) and can automatically open or close the through hole (51).

5. The smoke detection system of claim 4, wherein: the door opening and closing device comprises a rack (61) fixedly arranged on one side of a through hole (51) on a partition plate (5), a door plate (62) capable of being covered on the through hole (51), a micro motor (63) fixedly installed on the door plate (62) and a gear (64) connected with the micro motor (63) in a driving mode, wherein the gear (64) is meshed with the rack (61), the door plate (62) can slide along the surface of the partition plate (5), and the signal input end of the micro motor (63) is connected with the signal output end of a controller.

6. The smoke detection system of claim 5, wherein: the area of the door panel (62) is larger than that of the through hole (51), and when the door panel (62) covers the through hole (51), the periphery of the door panel (62) is wider than the through hole (51).

7. The smoke detection system of claim 6, wherein: a guide rail (8) is integrally arranged on one side, away from the rack (61), of the through hole (51) on the partition board (5), and a sliding groove (622) in sliding connection with the guide rail (8) is formed in the bottom surface of the door panel (62).

8. The smoke detection system of claim 5, wherein: and limiting plates (7) for blocking the gear (64) from being separated from the rack (61) are integrally arranged at two ends of the rack (61) in the length direction.

9. The smoke detection system of claim 5, wherein: fixedly connected with riser (621) on door plant (62), micro motor (63) are installed on riser (621).

10. The smoke detection system of claim 1, wherein: the temperature sensor (2) is arranged at the bottom end of the smoke alarm (1) and the probe of the temperature sensor is exposed outside the smoke alarm (1).