Fire sensing device for building fire protection

Abstract

The present invention provides a fire sensing device for building fire protection, the fire sensing device being a first fire sensing unit, one side of which is directed to an indoor space of a building, which is attached to a ceiling of the indoor space, senses a fire in the indoor space, and when the fire is sensed, sprays fire prevention water supplied by a water spraying pipe provided in the building out of the indoor space; and a first fire detection unit which is attached to the other side of the first fire detection unit and detects a fire in a predetermined space (hereinafter referred to as a ceiling internal space) formed between the indoor space ceiling and the inner wall of the building ceiling. The fire in the ceiling internal space is detected by detecting whether a fire occurs in a specified space (hereinafter referred to as the ceiling internal space) formed between the indoor space ceiling and the inner wall of the building ceiling through a second fire sensing part for spraying the fireproof water provided by the water spraying pipeline out of the ceiling internal space. Therefore, the building can be safely protected from the influence of the fire hazard.

Description

Technical Field

[0001] This invention relates to fire sensing devices, and more particularly to fire sensing devices for building fire protection. Background Technology

[0002] Typically, fire sensors are installed on the ceiling to detect the heat generated during a fire. If heat is detected, it is transmitted to a fire receiver that manages the fire system. The fire receiver then alerts the system to the fire by sounding an alarm bell or siren.

[0003] Relatedly, in Korean Utility Model Registration No. 20-0464821 (announced on January 21, 2013), a fire sensing housing that is fixedly installed on one side of a residential ceiling or wall is described, including a fire sensing housing and an intelligent fire sensor that incorporates a fire sensing housing that protects the internal circuitry.

[0004] Similarly, fire sensors are installed on the ceiling or walls of an indoor space to detect whether a fire has occurred in the corresponding indoor space.

[0005] In addition, various electrical wiring or frameworks and other building accessories are usually installed in the designated space formed between the ceiling of the interior space and the inner wall of the ceiling (hereinafter referred to as "ceiling interior space"). These electrical wiring may cause fire hazards due to overheating or leakage.

[0006] Furthermore, because the interior space of the ceiling is low and narrow, spanning the entire building, it can spread very quickly in the event of a fire in a specific location.

[0007] However, traditional fire sensors only detect fires in the indoor space, without separately detecting whether a fire has occurred in the space inside the ceiling. Therefore, there is a problem that fires inside the ceiling are difficult to extinguish.

[0008] Existing technical documents

[0009] Patent documents

[0010] (Patent Document 1) Korean Utility Model Registration No. 20-0464821 (Published on January 21, 2013) Summary of the Invention

[0011] The problem that the invention aims to solve

[0012] Therefore, in order to solve the aforementioned problems, the present invention aims to provide a fire detection device for building fire protection, which can quickly respond when a fire occurs in the specified space formed between the ceiling of the indoor space and the inner wall of the building ceiling (hereinafter referred to as "the ceiling interior space"), thereby making the building safer to be protected from fire.

[0013] Furthermore, the present invention also aims to provide a fire sensing device for building fire protection, which predicts the direction of a fire by detecting the temperature of air flowing in from a direction above 2 from the interior space of the ceiling, and discharges fire-resistant water through the air inflow path of the predicted direction, thereby quickly extinguishing the fire.

[0014] means for solving problems

[0015] To achieve the aforementioned objective, the fire detection device for building fire protection provided by the present invention comprises a first fire detection unit, which is installed on the ceiling of the indoor space to detect fires in the indoor space and sprays fire-resistant water supplied from the sprinkler pipes provided in the building into the indoor space during fire detection; and a second fire detection unit attached to the first fire detection unit to detect fires in a predetermined space (hereinafter referred to as "ceiling interior space") formed between the ceiling of the indoor space and the inner wall of the building ceiling, wherein fire detection includes spraying fire-resistant water supplied from the sprinkler pipes into the ceiling interior space.

[0016] It is worth mentioning that the second fire detection unit is equipped with an intake fan at the center and is placed in the main unit at the bottom of the ceiling interior space; it is equipped with an air inlet at the end, which is radially installed from the main unit and rotates in conjunction with the intake fan in the first direction, and has a small fixed-length air intake pipe for drawing in air; sensors installed on each air intake pipe to detect smoke particles in the drawn-in air and ambient temperature; fire-resistant water supplied from the spray pipe flows into the fire-resistant water pipe of the main unit; the fire-resistant water valve of the fire-resistant water pipe is opened; and a control module is included, which determines whether a fire has occurred in the ceiling interior space by summarizing the detection results of the sensors. If the control module determines that a fire has occurred in the ceiling interior space, it can control the fire-resistant water valve to open the fire-resistant water pipe and spray the fire-resistant water flowing into the main unit out of the air inlet through the air intake pipe, causing the intake fan to rotate in the second direction opposite to the first direction.

[0017] It is worth mentioning that the second fire sensing unit also includes other air valves, which open and close the air inlet pipes respectively. After the control module determines the direction of the fire by comparing the sensing results of the sensors, it only opens the air inlet pipe corresponding to the direction of the fire, so that the fireproof water can be sprayed in the direction of the fire.

[0018] It is worth mentioning that the air inlet pipe may also include a nozzle attached to the air inlet, which sprays the fire-retardant water horizontally under the control of the control module.

[0019] Invention Effects

[0020] As described above, the building fire detection device of the present invention can detect whether a fire has occurred in a designated space (hereinafter referred to as "ceiling interior space") formed between the ceiling of the indoor space and the inner wall of the ceiling of the building. When a fire occurs in the ceiling interior space, it can respond quickly, thereby protecting the building from the impact of fire.

[0021] In addition, the present invention can also detect the temperature of air flowing in from two or more directions inside the ceiling, predict the direction of the fire, and discharge fire-resistant water through the air inflow path of the predicted direction, thereby achieving the effect of quickly extinguishing the fire. Attached Figure Description

[0022] Figure 1 This is an example of the present invention of a separation attempt of a fire sensing device for building fire protection.

[0023] Figure 2 This is a cross-sectional view showing the installation status of a fire detection device for building fire protection, according to an example of the present invention.

[0024] Figure 3 This is an enlarged cross-sectional view for illustrating the operation of the second fire sensing unit according to an embodiment of the present invention.

[0025] Figure 4 and Figure 5 This is a drawing illustrating the process of a second fire detection unit detecting a fire, according to an example of the present invention.

[0026] Figures 6 to 8 This is a drawing created by the second fire sensing unit according to an embodiment of the present invention to illustrate the process of spraying fire-retardant water in the direction of a fire.

[0027] Explanation of reference numerals in the attached figures

[0028] 100: First Fire Alarm Division; 110: First Main Unit

[0029] 120: First fire sensor; 200: Second fire sensor

[0030] 210: Main unit 211: Main unit casing

[0031] 212: Flow guide tube; 213: Diaphragm

[0032] 214: Isolation Zone 220: Intake Fan

[0033] 230: Intake pipe; 231: Intake port

[0034] 232: Air valve; 240: Nozzle

[0035] 250: Sensor section; 260: Fireproof water pipe

[0036] 261: Fireproof water valve; 270: Sealing cap

[0037] 280: Control Module W: Fireproof Water

[0038] A: Interior space B: Ceiling

[0039] C: Interior space of the ceiling D: Interior wall of the building's ceiling Detailed Implementation

[0040] The embodiments of the present invention will now be described with reference to the accompanying drawings. However, this detailed description will allow those skilled in the art to readily implement the invention. The invention can be embodied in many different forms and is not limited to the embodiments described herein. Furthermore, for the purpose of clearly illustrating the invention in the drawings, parts irrelevant to the description have been omitted, and similar reference numerals have been added to similar parts throughout the list. Additionally, even when detailed descriptions are omitted, parts readily understood by those skilled in the art have also been omitted.

[0041] Within the entire list and the scope of the claim, if a section contains a certain component, it means that other components may be included, rather than excluding other components, unless specifically stated otherwise.

[0042] Figure 1 This is an attempt to separate the fire detection device for building fire protection according to an embodiment of the present invention. Figure 2 This is a cross-sectional view showing the installation status of a fire detection device for building fire protection in one embodiment of the present invention. Figure 3 This is an enlarged cross-sectional view for illustrating the operation of the second fire sensing unit in one embodiment of the present invention.

[0043] like Figures 1 to 3 As shown, according to an embodiment of the present invention, a fire detection device for building fire protection is installed between the building's interior space A and the designated space C formed between the interior space ceiling B and the building's ceiling inner wall D (hereinafter referred to as "ceiling interior space"). It can detect not only the interior space A, but also the ceiling interior space C at the same time, so as to respond quickly to the fire in the ceiling interior space C.

[0044] Therefore, according to an example of the present invention, a fire detection device for building fire protection includes a first fire detection unit 100 for detecting a fire in an indoor space A and a second fire detection unit 200 for detecting a fire in a ceiling-mounted interior space C.

[0045] First, the first fire detection unit 100, such as Figure 1 As shown, one side is installed on the ceiling of the interior space B, pointing towards the interior space A, to detect fire in the interior space A, and fire-resistant water supplied from the sprinkler pipes (not in the city) of the building is sprayed out of the interior space A during fire detection.

[0046] Therefore, the structure and operation of the first fire sensor 100 are similar to those of fire sensors typically installed in buildings. For example, the first fire sensor 100 may consist of a first main body 110 fixedly installed inside the ceiling B and a first fire sensor 120 inside the first main body 110, which detects a fire in the indoor space A by analyzing the air flowing in from the indoor space A. The first main body 110 may include an oil supply (unutilized) for allowing air to flow into the indoor space A, and a fireproofing (undistributed) that forms the fireproofing when sprayed.

[0047] Second fire sensor 200, such as Figure 1 As shown, a fire sensor 100 is installed on the other side of the first fire sensor to detect a fire in the interior space C of the ceiling. The fire sensor will spray fire-resistant water from the sprinkler system (not in the city) supplied to the interior space C of the ceiling.

[0048] Therefore, the second fire monitoring unit 200 may include a main unit 210, multiple air inlet pipes 230, air valves 232, nozzles 240, multiple sensor units 250, fireproof water pipes 260, fireproof water valves 261, a cover unit 270, and a control module 280.

[0049] The main unit 210 refers to a main unit casing 211 that is centrally equipped with an intake fan 220 and placed at the bottom of the interior space C of the ceiling, forming the exterior of the main unit 210. Multiple through holes are arranged around the intake fan 220. Depending on the rotation direction of the intake fan 220, air is guided into the inner side of the intake fan 220 or from the main unit casing 211 via a fireproof pipe 212 and a guide pipe 230, allowing water to be discharged together with the specific guide pipe 230 of the main unit 211. A diaphragm 213 is included to divide the space between 212, and the diaphragm 213 can form a diaphragm 124 divided according to the intake pipe 230.

[0050] The intake fan 220 is driven by a fan motor 290 to rotate in either a first or second direction. Depending on its rotation direction, it can draw air from the interior space C of the atrium into the interior of the main unit casing 211, or spray fireproof water supplied by the fireproof water pipe 260 out of the interior space C of the atrium. For example, if the intake fan 220 rotates in the first direction, air from the interior space C of the atrium will flow into the interior of the main unit casing through the intake pipe 230. If the intake fan 220 rotates in the second direction, which is opposite to the first direction, fireproof water supplied by the hot water pipe 260 will be sprayed out of the interior space C of the atrium through the intake pipe 230.

[0051] The air intake pipe 230, with an air inlet 231 at its end, is installed outward from the main unit 210. Multiple air intake pipes 230 can be installed radially. In the example shown in the figure, four air intake pipes 230 are illustrated as an example of installation in four rooms.

[0052] Furthermore, each air intake pipe 230 can only form a path for the movement of air or fire-resistant water when it is equipped with an air valve 232 controlled by the subsequent control module 280 and when any air valve 232 is opened.

[0053] In addition, the air inlet 231 may also include more water spray clutch heads 240, which spray out the fireproof water under the control of the subsequent control module 280.

[0054] The helical clutch head 240 is equipped with multiple nozzles that can spray the fire-retardant water horizontally. For example, the nozzles 240 can spray fire-retardant water supplied to the center of the intake fan 220 by the rotation (i.e., rotation in the second direction) of the intake fan 220 laterally towards the main unit 210. Figure 7 and Figure 8 As shown. Additionally, nozzle 240, as... Figure 5 As shown, it can be used as an air intake, and the surrounding air is drawn into the direction of the intake pipe 230 by the rotation of the intake fan 220 (i.e., the rotation in the first direction).

[0055] The sensor unit 250 detects the presence of a fire by analyzing the air drawn in through the intake pipe 230. To this end, the sensor unit 250 can be installed inside each intake pipe 230, detecting smoke particles and ambient temperature in the drawn-in air through the corresponding intake pipe 230. Notably, the sensor unit 250 transmits the information detected from the drawn-in air through the corresponding intake pipe 230 to the subsequent control module 280 to predict the direction of the fire.

[0056] For example, when the sensor unit 250 sends the detection result of the corresponding air intake pipe 230 to the control module 280, if it also sends its own identification information or the identification information of the air intake pipe 230, the control module 280 can receive the information to determine whether a fire has occurred in that direction, thereby predicting the direction of the fire when a fire occurs.

[0057] Therefore, the sensor unit 250 can be equipped with a smoke sensor and a temperature sensor, or with a heat and smoke mixture sensor, to determine whether a fire has occurred.

[0058] Fire-resistant water pipe 260 refers to the flow of fire-resistant water supplied from the Scringkler pipe (not shown) provided with the building into the main unit 210 (particularly the center of the main unit 210). For this purpose, the fire-resistant water pipe 260 can first be connected to the sprinkler pipe (not shown) and then connected to the pipework formed at the center of the cover 270 of the main unit 210 at the tower end.

[0059] On the other hand, at the end of the fireproof water pipe 260, a fireproof water valve 261 is provided to control the switch of the fireproof water pipe 260 via the control module 280 described later, so that the fireproof water can only be supplied in the event of a fire.

[0060] The cover 270 covers the top of the main body 210. This is to prevent air drawn in through the air intake pipe 230 from leaking through the open top of the main body 210 and mixing with the surrounding air, thereby accurately detecting whether a fire has occurred, or preventing fire-resistant water supplied through the fire-resistant water pipe 260 from overflowing from the top of the main body 210 and leaking to places other than the direction of the fire.

[0061] The control module 280 determines whether a fire has occurred in the interior space C of the ceiling by collecting the detection results from the sensor group 250. For this purpose, the control module 280 can be installed at a designated location on the fire detection device for building fire protection according to the present invention; an example of this is shown in the drawings, mounted on the first main body 110.

[0062] If a fire occurs in the interior space C of the ceiling, the control module 280 first controls the fire-resistant water valve 261 to open the fire-resistant water pipe 260. As a result, the fire-resistant water flowing into the main unit 210 is sprayed through the air intake pipe 230 onto the corresponding air intake 231 or the corresponding spray head 240, and the air intake fan 220 is rotated. For this purpose, the control module 280 can rotate the air intake fan 220 to a second direction opposite to the first direction.

[0063] Furthermore, the control module 280 can determine the direction of the fire by comparing the detection results of the sensor group 250, and then only open the air intake pipe corresponding to the direction of the fire, controlling the fire-resistant water to spray only in the direction of the fire. For example, the control module 280 can obtain the detection results from the sensor group 250, but at the same time obtain their identification information, identify the direction of each detection result, and determine that the fire occurs in the direction where the temperature or smoke particle concentration exceeds the standard.

[0064] Figure 4 and Figure 5 This is a drawing illustrating the fire detection process of a second fire sensing unit according to an example of the present invention, showing an example of a fire occurring in the direction of any one of the multiple air intake pipes 230a, 230b, 230c, and 230d (also known as the first air intake pipe). Figure 4 and Figure 5 As shown, according to one embodiment of the present invention, when the second fire sensor is operating in fire detection mode, the control module 280 will cause the intake fan 220 to rotate counterclockwise and open all air valves 232, thus fully opening the intake pipe 230. This is to draw in air from all directions to identify whether a fire has occurred in any direction.

[0065] Figures 6 to 8 This is a drawing illustrating the process of spraying fire-retardant water towards the direction of a fire, based on an embodiment of the present invention. It shows an example of fire-retardant water being sprayed towards the first air inlet 230a, which detects the fire, from among multiple air inlets (230a, 230b, 230c, 230d). Figure 6 or Figure 8 As shown, if a fire is detected in the direction of the first air intake pipe 230a, in order to enable the second fire sensor in one example of the present invention to operate in fire-prevention water spray mode, but only spray water in the direction of the first air intake pipe 230a, the control module 280 rotates the air intake fan 220 clockwise, opening only the air intake valve 232a corresponding to the first air intake pipe 230a, while the remaining air intake pipes 230, 232b, 232c, and 232d are all closed. In this case, the nozzle 240a equipped with the first air intake pipe 230a, as shown... Figure 8 As shown, the device rotates under the pressure of fire-resistant water transmitted through the first air inlet pipe 230a, spraying the fire-resistant water outwards.

[0066] Similarly, according to one embodiment of the present invention, the fire sensing device for building fire protection is characterized by simultaneously sensing whether a fire has occurred in a predetermined space (hereinafter referred to as the ceiling interior space) formed between the ceiling of the interior space and the inner wall of the building ceiling. When a fire occurs in the ceiling interior space, it can respond quickly, thereby making the building safer to be protected from fire.

[0067] In addition, the present invention also has the characteristics of detecting the temperature of the air flowing in from above the ceiling interior space 2, predicting the direction of the fire, and discharging fire-resistant water through the air inflow path of the predicted direction, thereby quickly extinguishing the fire.

[0068] The embodiments of the present invention have been described above, but the scope of the present invention is not limited thereto. It includes all changes and modifications to the present invention from the embodiments onwards that are readily altered by a person of ordinary skill in the art to which the present invention pertains and are considered equivalent.

Claims

1. A fire detection device for building fire protection, characterized in that, The fire detection device for building fire protection includes: To allow one side to face the interior space of the building, it is attached to the ceiling of the interior space to detect fire in the interior space. During fire monitoring, fire-resistant water supplied from sprinkler systems installed in the building is sprayed out of the interior space by a first fire monitoring unit; and A second fire sensing unit, attached to the first fire sensing unit, senses a fire in a designated space (hereinafter referred to as "ceiling interior space") formed between the ceiling of the indoor space and the inner wall of the building ceiling, and sprays fire-resistant water supplied from the sprinkler pipe into the ceiling interior space when a fire is sensed.

2. The fire detection device for building fire protection according to claim 1, characterized in that, The second fire sensing unit includes: The central intake fan is located in the main body at the bottom of the interior space of the ceiling; The end is equipped with an air inlet, which is radially mounted from the main body and rotates in conjunction with the air intake fan in the first direction to draw in air through a small fixed-length air intake pipe. Sensors installed on each of the intake pipes to detect smoke particles in the inhaled air and ambient temperature; Fire-resistant water supplied from the spray pipe flows into the fire-resistant water pipe of the main unit; Open the fireproof water valve of the fireproof water pipe; and The control module determines whether a fire has occurred inside the ceiling by summarizing the detection results from the sensors. If a fire occurs in the interior space of the ceiling, the control module controls the fireproof water valve to open the fireproof water pipe and rotates the air intake fan to a second direction opposite to the first direction so that the fireproof water flowing into the main body is sprayed out of the air intake through the air intake pipe.

3. The fire detection device for building fire protection according to claim 2, characterized in that, The second fire sensing unit also includes a gas valve for opening each of the air inlet pipes. After determining the direction of the fire by comparing the detection results of the sensors, the control module only opens the air intake pipe corresponding to the direction of the fire to spray the fire-resistant water in the direction of the fire. This is a building fire detection device characterized by this feature.

4. The fire detection device for building fire protection according to claim 2, characterized in that, The air inlet pipe also includes a nozzle attached to the air inlet, which sprays the fire-retardant water horizontally under the control of the control module.

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