CN113256930B - Fire alarm and fire early warning water jet equipment - Google Patents
Fire alarm and fire early warning water jet equipment Download PDFInfo
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- CN113256930B CN113256930B CN202110688366.2A CN202110688366A CN113256930B CN 113256930 B CN113256930 B CN 113256930B CN 202110688366 A CN202110688366 A CN 202110688366A CN 113256930 B CN113256930 B CN 113256930B
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- fan blade
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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
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/005—Delivery of fire-extinguishing material using nozzles
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/28—Accessories for delivery devices, e.g. supports
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Chemical & Material Sciences (AREA)
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- General Physics & Mathematics (AREA)
- Fire-Detection Mechanisms (AREA)
- Fire Alarms (AREA)
Abstract
The invention relates to the technical field of fire detection, in particular to a fire alarm and fire early warning water spraying device, which comprises: the device comprises a shell, a pipeline, a drainage plate, a motor, a fan blade group, a smoke sensor, an alarm, a spray head and a water inlet pipe; according to the invention, the first fan blade and the second fan blade are opposite in blade surface inclination direction, and then the motor drives the first fan blade and the second fan blade to rotate, so that two air flows in different directions are generated, the motor rotates clockwise, smoke sucked by the first fan blade and the second fan blade is converged to the smoke sensor for first detection, and the motor rotates anticlockwise, so that the smoke sucked by the first fan blade moves to the smoke sensor for second detection, thus the alarm accuracy of the smoke alarm is improved, the false alarm is prevented, and water is pressurized through the air flow in the pipeline, so that the water spraying area is increased, and the indoor fire extinguishing efficiency is improved.
Description
Technical Field
The invention relates to the technical field of fire detection, in particular to a fire alarm and fire early warning water spraying device.
Background
Traditional fire detection device's detection mode is smog (particulate matter) in the natural come-up gets into fire detection device along with hot-air, thereby carry out passive detection, and detection sensitivity is low, for improving detection sensitivity, getter device has been increased on original basis, thereby the suction smog of initiative, nevertheless because the initiative is inhaled smog, smog concentration can increase, thereby it is too sensitive to cause the smog alarm, lead to the wrong report to the police, inconvenience has been brought for daily life, its fire detection device should be surveyed according to the change of intensity of a fire, and the change of smog volume.
General conflagration detection device uses in indoor combination with fire control conflagration early warning water spray, when fire detection device detected smog, puts out a fire to indoor through fire control conflagration early warning water spray, but now has built many high-rise buildings, and high-rise building need supply water many times, and this can reduce water pressure to it is little to make the spray area of water, is unfavorable for fire control conflagration early warning water spray to indoor putting out a fire.
Disclosure of Invention
The present invention has been made in view of the above problems, and an object of the present invention is to provide a method for detecting a fire condition in a room according to a change of a fire, for example, to determine whether smoke is increased by two detections of a smoke sensor, thereby giving an alarm, and to increase a water spray area by pressurizing water by a suction airflow, thereby achieving the above object by:
the fire alarm and fire early warning water spraying device comprises: the device comprises a shell, a pipeline, a drainage plate, a motor, a fan blade group, a smoke sensor, an alarm, a spray head and a water inlet pipe;
the lower end of the vertical wall surface of the shell is provided with a first opening, the middle part of the vertical wall surface of the shell is provided with a second opening, and the upper end of the vertical wall surface of the shell is provided with a third opening;
the pipeline is arranged in the shell, the diameter of the upper end of the pipeline is larger than that of the lower end of the pipeline, the lower end of the pipeline is inserted into the bottom surface of the shell and is communicated with the outside, the upper end of the pipeline extends upwards and is positioned above the opening II of the shell, the pipeline is provided with an air inlet, the inner wall of the pipeline is positioned above the air inlet and is provided with a drainage ring, the outer wall of the pipeline is provided with a plate, the outer wall surface of the plate is connected with the inner wall of the shell, the inner wall of the plate is connected with the outer wall of the pipeline, and the plate is positioned between the opening I and the opening II;
the drainage plate is horn-shaped, one end with the small diameter of the drainage plate is positioned below the drainage plate, one end with the large diameter of the drainage plate is positioned above the drainage plate, and the drainage plate is positioned between the fan blade group and the opening III;
the motor is fixed inside the pipeline through a rod, and a fan blade group is arranged at the extending end of the motor shaft;
the fan blade group comprises: the fan comprises a first fan blade, a second fan blade and a closed ring;
the axis of the first fan blade is connected with a shaft of a motor, the extending end of the first fan blade is connected with a closed ring in a surrounding manner, and the lower end of the closed ring extends downwards and is inserted into the upper end of a pipeline;
the number of the fan blades of the second fan blade is less than that of the first fan blade, one ends of the second fan blades are arranged at equal intervals along the axis of the closed ring, and the inclination directions of the second fan blades are opposite to that of the first fan blade;
the smoke sensor is arranged above the fan blade group;
the alarm is arranged on the top surface of the shell and is protected by the shell;
the spray head is arranged on the lower end face of the shell, wherein the spray head and the axis of the pipeline are on the same straight line;
the water inlet pipe is horizontally arranged, penetrates through the shell and the pipeline and is positioned below the opening, the part of the water inlet pipe positioned in the pipeline is naturally transited and bent downwards, and the water inlet pipe is provided with a valve;
the smoke sensor controls the motor to rotate through the single chip microcomputer, and controls the alarm and the valve of the water inlet pipe through electric signals.
Preferably, the plate is arranged obliquely upward along the axis, and the purpose of the plate is to concentrate the smoke discharged along the second opening and eject the smoke obliquely upward, so as to prevent the smoke discharged from the second opening from being sucked again by the first opening.
Preferably, the cross section of the drainage ring is triangular.
Preferably, the smoke sensor is located below the flow guide plate adjacent to the first fan blade.
The invention has the beneficial effects that:
according to the invention, the first fan blade and the second fan blade are opposite in blade surface inclination direction, and then the motor drives the first fan blade and the second fan blade to rotate, so that two air flows in different directions are generated, the smoke sucked by the first fan blade and the second fan blade is converged to the smoke sensor to carry out first detection through clockwise rotation of the motor, the smoke sucked by the first fan blade moves to the smoke sensor to carry out second detection through anticlockwise rotation of the motor, and the actual smoke quantity is greater than the first detection value, so that the smoke sensor can carry out detection according to the change of fire, the alarm accuracy of the smoke alarm is improved, and false alarm is prevented.
The invention pressurizes water through the airflow in the pipeline, thereby increasing the spraying area of water and improving the indoor fire extinguishing efficiency.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention.
Fig. 2 is a schematic view of a fan blade assembly according to the present invention.
FIG. 3 is a partial structural schematic diagram of the present invention.
FIG. 4 is a first schematic view of the flow pattern of the air flow of the present invention.
FIG. 5 is a schematic view of the flow pattern of the air flow of the present invention.
FIG. 6 is a schematic view of the present invention for pressurizing water.
As shown in fig. 1-6:
1-shell, 11-opening I, 12-opening II, 13-opening III, 2-pipeline, 21-air inlet, 22-drainage ring, 23-plate, 3-drainage plate, 4-motor, 5-blade group, 51-first blade, 52-second blade, 53-closed ring, 6-smoke sensor, 7-alarm, 8-spray head and 9-water inlet pipe.
Detailed Description
Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are easily implemented by those having ordinary skill in the art to which the present invention pertains, however, the present invention may be implemented in various forms, and thus, the present invention is not limited to the embodiments described below, and in addition, components not connected to the present invention will be omitted from the drawings for more clear description of the present invention.
As shown in fig. 1, a fire alarm and fire early warning sprinkler includes: the device comprises a shell 1, a pipeline 2, a drainage plate 3, a motor 4, a fan blade group 5, a smoke sensor 6, an alarm 7, a spray head 8 and a water inlet pipe 9;
the lower end of the vertical wall surface of the shell 1 is provided with a first opening 11, the middle part of the vertical wall surface of the shell 1 is provided with a second opening 12, and the upper end of the vertical wall surface of the shell 1 is provided with a third opening 13;
the pipeline 2 is arranged inside the shell 1, the diameter of the upper end of the pipeline 2 is larger than that of the lower end, the lower end of the pipeline 2 is inserted into the bottom surface of the shell 1 and is communicated with the outside, so that the pipeline 2 is communicated with the outside of the shell 1, the upper end of the pipeline 2 extends upwards and is positioned above the second opening 12 of the shell 1, the pipeline 2 is provided with an air inlet 21, the air inlet 21 is parallel to the first opening 11, the inner wall of the pipeline 2 is provided with a drainage ring 22 above the air inlet 21, the drainage ring 22 is coaxially arranged with the pipeline 2, the cross section of the drainage ring 22 is triangular when viewed from the cross section, as shown in figure 3, the cross section of each of the two ends is guided to flow by the drainage ring 22, the outer wall of the pipeline 2 is provided with a plate 23, the plate 23 is in a circular ring shape, the outer wall surface of the plate 23 is connected with the inner wall of the shell 1, the inner wall of the plate 23 is connected with the outer wall of the pipeline 2, the plate 23 is positioned between the first opening 11 and the second opening 12, the purpose is to make the first opening 11 and the second opening 12 become two independent air inlets;
the drainage plate 3 is in a horn shape, wherein one end of the drainage plate 3 with a small diameter is positioned below, one end of the drainage plate 3 with a large diameter is positioned above, and the drainage plate 3 is coaxially fixed in the shell 1 and is specifically positioned between the fan blade group 5 and the opening III 13;
the motor 4 is fixed inside the pipeline 2 through a rod and is positioned above the drainage ring 22, wherein the shaft of the motor 4 vertically extends upwards;
the extending end of the shaft of the motor 4 is provided with a fan blade group 5;
as shown in fig. 2, the fan blade group 5 includes: a first fan blade 51, a second fan blade 52 and a closed ring 53;
the axis of the first fan blade 51 is connected with the shaft of the motor 4, and the extending end of the first fan blade 51 is connected with a closed ring 53 in a surrounding manner;
as shown in fig. 3, the lower end of the closed loop 53 extends downwards and is inserted into the upper end of the pipeline 2, wherein the diameter of the outer wall of the closed loop 53 is the same as that of the inner wall of the pipeline 2;
the number of the second fan blades 52 is less than that of the first fan blades 51, one ends of the second fan blades 52 are arranged at equal intervals along the axis of the closed ring 53, and the other ends of the second fan blades 52 are close to the inner wall of the housing 1, wherein the inclination directions of the second fan blades 52 are opposite to that of the first fan blades 5, when the motor 4 drives the second fan blades 52 to rotate with the first fan blades 5, the flow directions of the gas generated by the second fan blades 52 are opposite to that of the gas generated by the first fan blades 51, and the suction force of the second fan blades 52 is less than that of the first fan blades 51 because the number of the second fan blades 52 is less than that of the first fan blades 51;
the smoke sensor 6 is fixed with the upper end of the shell 1 through another rod, so that the smoke sensor 6 is arranged above the fan blade group 5, and particularly, the smoke sensor 6 is positioned below the drainage plate 3 and close to the first fan blade 51;
the alarm 7 is arranged on the top surface of the shell 1 and is protected by the shell;
the spray head 8 is arranged on the lower end face of the shell 1, wherein the spray head 8 and the axis of the pipeline 2 are on the same straight line;
the water inlet pipe 9 is horizontally arranged, the water inlet pipe 9 penetrates through the shell 1 and the pipeline 2, the water inlet pipe 9 is positioned below the first opening 11, the part of the water inlet pipe 9 positioned in the pipeline 2 is naturally and transitionally bent downwards, and the water inlet pipe 9 is provided with a valve;
the smoke sensor 6 controls the motor 4 to rotate through the single chip microcomputer, and the smoke sensor 6 controls the alarm 7 and a valve of the water inlet pipe 9 through electric signals;
as shown in fig. 4, the motor 4 rotates clockwise, the first fan blade 51 introduces an airflow into the housing 1 from top to bottom along the opening three 13, the second fan blade 52 introduces an airflow into the housing 1 from bottom to top along the opening two 12, when the airflow flows to the flow guide plate 3 through the second fan blade 52, the airflow collides with the flow guide plate 3 through the flow guide plate 3 to reduce pressure intensity, and at the same time, the airflow is guided to flow obliquely downward to prevent the airflow generated by the second fan blade 52 from forming an air curtain upward to affect the first fan blade 51 to suck in air through the opening three 13, the airflow generated by the second fan blade 52 flows to the first fan blade 5 along the flow guide plate 3, and then is sucked downward by the negative pressure generated by the first fan blade 51, so that two airflows are converged by the smoke sensor 6 to continuously detect the smoke amount in the airflow, and finally the converged airflow is guided by the flow guide ring 22 and discharged along the lower end of the duct 2.
Preferably, as an implementation mode, the plate 23 is arranged obliquely upward along the axis, and the purpose of the plate is to concentrate the smoke discharged along the second opening 12 and eject the smoke obliquely upward, so as to prevent the smoke discharged from the second opening 12 from being sucked into the first opening 11 again, and further prevent the smoke density from being increased due to the non-fire effect;
the working principle of the invention is as follows:
firstly, the motor 4 rotates clockwise, the airflow is introduced into the housing 1 from the top to the bottom along the opening third 13 through the first fan blade 51 and the airflow is introduced into the housing 1 from the bottom to the top along the opening second 12 through the second fan blade 52, the two airflows are converged, the converged airflow is sucked into the pipeline 2 downwards under the negative pressure generated by the first fan blade 51, when the airflow passes through the smoke sensor 6, the smoke sensor 6 continuously detects the smoke amount in the airflow, the first detection is carried out, when the indoor smoke amount is large and triggers the threshold value of the smoke sensor 6, the single chip microcomputer controls the motor 4 to rotate anticlockwise as shown in figure 5, at this time, the airflow directions of the first fan blade 51 and the second fan blade 52 are mutually changed, the second fan blade 52 sucks the smoke from the top to the bottom along the opening third 13, the first fan blade 51 sucks the smoke from the bottom to the top along the opening first opening 11, the smoke is discharged from the opening third 13 through the first fan blade 51, and the negative pressure generated by the second fan blade 52 is small, the influence on the smoke is very little and can be ignored, the two smoke strands are changed into one smoke strand, the smoke concentration is reduced, the smoke sensor 6 carries out secondary detection, when the smoke amount sucked by the first fan blade 51 is less and is lower than the threshold value for triggering the smoke sensor 6, namely the smoke sensor 6 cannot be triggered within a certain time (for example, one minute), the single chip microcomputer controls the motor 4 to rotate clockwise to return to the initial detection state, when the smoke amount sucked by the first fan blade 51 is increased, the smoke sensor 6 is triggered again, the actual smoke amount is larger than the threshold value for triggering the smoke sensor 6 for the first time, the alarm 7 is triggered to give an alarm through an electric signal sent by the smoke sensor 6, the water inlet pipe 9 supplies water into the pipeline 2, the single chip microcomputer controls the motor 4 to rotate clockwise, as shown in figure 6, the air flow pressurizes the water and discharges the water along the lower end of the pipeline 2, finally, the fire is sprayed to the indoor through the spray head 8 to extinguish fire.
Claims (4)
1. A fire alarm and fire early warning water jet apparatus includes: the device comprises a shell (1), a pipeline (2), a drainage plate (3), a motor (4), a fan blade group (5), a smoke sensor (6), an alarm (7), a spray head (8) and a water inlet pipe (9);
the method is characterized in that: the lower end of the vertical wall surface of the shell (1) is provided with a first opening (11), the middle part of the vertical wall surface of the shell (1) is provided with a second opening (12), and the upper end of the vertical wall surface of the shell (1) is provided with a third opening (13);
the pipeline (2) is arranged inside the shell (1), the diameter of the upper end of the pipeline (2) is larger than that of the lower end of the pipeline (2), the lower end of the pipeline (2) is inserted into the bottom surface of the shell (1) and is communicated with the outside, the upper end of the pipeline (2) extends upwards, the height of the pipeline is higher than that of a second opening (12) of the shell (1), an air inlet (21) is formed in the pipeline (2), a drainage circular ring (22) is arranged on the inner wall of the pipeline (2) and above the air inlet (21), a plate (23) is arranged on the outer wall of the pipeline (2), the outer wall surface of the plate (23) is connected with the inner wall of the shell (1), the inner wall of the plate (23) is connected with the outer wall of the pipeline (2), and the plate (23) is arranged between the first opening (11) and the second opening (12);
the drainage plate (3) is horn-shaped, one end of the drainage plate (3) with a small diameter is positioned below, one end of the drainage plate (3) with a large diameter is positioned above, and the drainage plate (3) is coaxially fixed in the shell (1) and is specifically positioned between the fan blade group (5) and the opening III (13);
the motor (4) is arranged inside the pipeline (2);
the set of blades (5) comprises: the fan comprises a first fan blade (51), a second fan blade (52) and a closed ring (53), wherein the axis of the first fan blade (51) is connected with a shaft of a motor (4), the extending end of the first fan blade (51) is connected with the closed ring (53) in a surrounding manner, the lower end of the closed ring (53) extends downwards to be inserted into the upper end of a pipeline (2), the number of the fan blades of the second fan blade (52) is smaller than that of the first fan blade (51), one end of the second fan blades (52) is arranged at equal intervals along the axis of the closed ring (53), and the inclination directions of the second fan blade (52) and the first fan blade (51) are opposite;
the smoke sensor (6) is arranged above the fan blade group (5), and the alarm (7) is arranged on the top surface of the shell (1);
the spray head (8) is arranged on the lower end face of the shell (1), wherein the spray head (8) and the axis of the pipeline (2) are on the same straight line;
the water inlet pipe (9) is horizontally arranged, the water inlet pipe (9) penetrates through the shell (1) and the pipeline (2), the water inlet pipe (9) is located below the air inlet (21), the part of the water inlet pipe (9) located inside the pipeline (2) is naturally transited and bent downwards, and a valve is arranged on the water inlet pipe (9);
smog sensor (6) are through the valve of signal of telecommunication control alarm (7) and inlet tube (9), smog sensor (6) are through single chip microcomputer control motor (4) clockwise rotation, when indoor smog triggers smog sensor (6), single chip microcomputer control motor (4) counter-clockwise rotation, if can't trigger smog sensor (6) in a certain time, through single chip microcomputer control motor (4) clockwise rotation, when triggering smog sensor (6) once more, signal of telecommunication trigger alarm (7) that send through smog sensor (6) report to the police, inlet tube (9) are to supplying water in pipeline (2), single chip microcomputer control motor (4) clockwise rotation.
2. A fire alarm and fire early warning sprinkler according to claim 1, wherein: the plate (23) is obliquely and upwards arranged along the axis, and aims to concentrate the discharged smoke along the second opening (12) and obliquely and upwards eject the smoke to prevent the smoke discharged from the second opening (12) from being sucked again by the first opening (11).
3. A fire alarm and fire early warning sprinkler according to claim 1, wherein: the cross section of the two ends of the drainage ring (22) is triangular when viewed from the cross section.
4. A fire alarm and fire early warning sprinkler according to claim 1, wherein: therefore, the smoke sensor (6) and the shaft of the motor (4) are on the same straight line, and the smoke sensor (6) is positioned below the drainage plate (3) and close to the first fan blade (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110688366.2A CN113256930B (en) | 2021-06-22 | 2021-06-22 | Fire alarm and fire early warning water jet equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110688366.2A CN113256930B (en) | 2021-06-22 | 2021-06-22 | Fire alarm and fire early warning water jet equipment |
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| Publication Number | Publication Date |
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| CN113256930A CN113256930A (en) | 2021-08-13 |
| CN113256930B true CN113256930B (en) | 2022-02-15 |
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| CN202110688366.2A Active CN113256930B (en) | 2021-06-22 | 2021-06-22 | Fire alarm and fire early warning water jet equipment |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114926953B (en) * | 2022-06-07 | 2024-01-19 | 浙江中辰城市应急服务管理有限公司 | Labyrinth passive power device with cyclone function |
| CN114758469B (en) * | 2022-06-13 | 2022-09-02 | 深圳市派安科技有限公司 | Fire smoke detection alarm capable of resisting ambient light interference |
| CN115100810A (en) * | 2022-07-20 | 2022-09-23 | 安徽卓鸣智能科技有限公司 | Smoke alarm for kitchen |
| CN115624704B (en) * | 2022-12-12 | 2023-03-07 | 广东广宇科技发展有限公司 | Fire fighting condition detection device and detection method |
| CN116453287B (en) * | 2023-06-09 | 2023-08-15 | 广东创能科技股份有限公司 | Remote monitoring sensing system based on Internet of things |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPN965996A0 (en) * | 1996-05-03 | 1996-05-30 | Vision Products Pty Ltd | The detection of airborne pollutants |
| US8443652B2 (en) * | 2009-10-01 | 2013-05-21 | Calectro Aktiebolag | Fluid detector |
| CN202003478U (en) * | 2011-04-28 | 2011-10-05 | 四川汉宇航空科技有限公司 | Smoke flow channel of smoke case |
| CN111724559B (en) * | 2020-06-18 | 2021-06-22 | 广州百畅信息科技有限公司 | Alarm device for emergency management |
| CN112370701A (en) * | 2020-11-12 | 2021-02-19 | 福建省南安市霞美电子设备厂 | Fire prevention warning rescue device |
| CN112634573A (en) * | 2020-12-09 | 2021-04-09 | 南京思达捷信息科技有限公司 | A multi-functional fire alarm device for wisdom building |
| CN112562252B (en) * | 2021-02-20 | 2021-09-21 | 深圳中消云智慧安全有限公司 | Fire smoke detection alarm device |
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