Air conditioning device for preventing fire
By installing a combination of sensors and atomizing nozzles inside the dust filter box, dust density is detected and reduced, thus solving the problem of dust fire hazards in ventilation equipment and achieving safe dust treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MAANSHAN XIAOFAN FOOD TECHNOLOGY CO LTD
- Filing Date
- 2025-04-07
- Publication Date
- 2026-04-28
AI Technical Summary
Existing ventilation equipment can only reduce the risk of deflagration by diluting the dust when it is discharged into the external environment, but high-density dust still poses a fire hazard inside the duct.
A sensor is installed inside the dust filter box to detect dust density. When the density is too high, the magnetic control valve is activated, and the dust in the air is removed in the form of water mist through the atomizing nozzles on both sides of the water pipe. The water mist is sprayed by the atomizing nozzles connected to the fire water pipe to reduce the dust concentration.
This effectively avoids the fire risk caused by excessive dust density inside the pipeline, and reduces dust concentration through water atomization, thus ensuring safety.
Smart Images

Figure CN224175295U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire protection and ventilation technology, specifically to an air conditioning device for preventing fires. Background Technology
[0002] Powder processing plants generate a large amount of suspended dust during the production process, so ventilation equipment is needed to remove the dust in order to ensure the air environment inside the factory. Under the influence of ventilation equipment, this suspended dust will enter the inside of the pipes. If the dust content inside the pipes is too high, it will cause deflagration when it comes into contact with an open flame or an electric spark.
[0003] Existing ventilation equipment can only reduce the risk of deflagration by diluting the dust when it is discharged into the external environment, but high-density dust inside the pipes can also pose a fire hazard. Utility Model Content
[0004] The purpose of this invention is to provide an air conditioning device to prevent fires. The sensor inside the dust filter box can detect the dust density. When the density is too high, the magnetic control valve will be activated, and the dust in the air will be removed in the form of water mist through the atomizing nozzles on both sides of the water pipe. This can avoid the dust density inside the pipe being too high and can solve the problems in the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an air conditioning device for preventing fires, comprising a turbine fan and a dust filter box. Both ends of the dust filter box are provided with pipe interfaces, which are connected to the output shaft port via flanges. Two fire-fighting water pipes are provided on one side of the dust filter box. A hopper is provided at the bottom of the dust filter box, and a pulverizing motor is installed inside the hopper. A drain pipe is provided below the pulverizing motor. A transmission shaft is installed inside the drain pipe and is rotatably connected to the pulverizing motor. Pulverizing blades are provided around the transmission shaft, and a shovel is provided at the top of the transmission shaft. The shovel is connected to the transmission shaft by screws.
[0006] Furthermore, the bottom of the turbine fan is provided with an exhaust top window, and one side of the turbine fan is provided with an output shaft port, and the other side of the turbine fan is provided with a motor shaft. One side of the fire water pipe is provided with an inspection window, which is rotatably connected to the dust filter box via a hinge. A cover plate is provided on the top of the dust filter box, and the cover plate is connected to the dust filter box by bolts.
[0007] Furthermore, the dust filter box is provided with a dust filter chamber inside, which is interconnected with the inside of the turbine fan. The dust filter chamber is provided with two sets of metal mesh screens and water guide pipes.
[0008] Furthermore, the metal mesh screen and the water guide pipe are alternately distributed, wherein the metal mesh screen is connected to the dust filter box via a sliding shaft.
[0009] Furthermore, the water guide pipe is connected to the fire water pipe via an internal thread, and multiple atomizing nozzles are provided on both sides of the water guide pipe.
[0010] Furthermore, one end of the fire water pipe is provided with a branch inlet, and a magnetic control valve is provided inside the branch inlet, wherein the magnetic control valve is connected to the fire water pipe via an internal thread.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] When the fan of this invention draws dust and air into the dust filter box, the sensor inside the dust filter box can detect the dust density. When the density is too high, the magnetic control valve will be activated, and the dust in the air will be removed in the form of water mist through the atomizing nozzles on both sides of the water pipe. This can prevent fire caused by excessive dust density inside the pipe. Attached Figure Description
[0013] Figure 1 This is the overall front view of the present invention;
[0014] Figure 2 This is a schematic diagram of the internal structure of the dust filter box of this utility model;
[0015] Figure 3 This is a schematic diagram of the water pipe structure of this utility model;
[0016] Figure 4 This is a schematic diagram of the bucket structure of this utility model.
[0017] In the diagram: 1. Turbine fan; 2. Dust filter box; 101. Motor shaft; 102. Exhaust roof window; 103. Output shaft port; 201. Pipe interface; 202. Inspection window; 203. Fire water pipe; 204. Cover plate; 205. Dust filter chamber; 206. Metal mesh screen; 207. Basket; 2071. Crushing motor; 2072. Drain pipe; 2073. Transmission coupling; 2074. Crushing blade; 2075. Shovel; 2031. Magnetic control valve; 2032. Water inlet; 2033. Water guide pipe; 2034. Atomizing nozzle; 2061. Sliding shaft. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] To address the issue that existing ventilation systems can only reduce the risk of deflagration by diluting dust when discharged into the external environment, but high-density dust inside the ducts can still pose a fire hazard; please refer to... Figure 1-4 The present invention provides the following solution:
[0020] An air conditioning device for fire prevention includes a turbine fan 1 and a dust filter box 2. The turbine fan 1 has an exhaust vent 102 at its bottom. Both the turbine fan 1 and the dust filter box 2 can be installed on the roof or inside the ceiling of the factory building. The turbine fan 1 is connected to a motor via a motor shaft 101, and the motor drives the turbine fan 1 to rotate at high speed. This draws air from inside the factory building into the turbine fan 1 and the dust filter box 2 through the exhaust vent 102. The turbine fan 1 has an output shaft port 103 on one side and an output shaft port 104 on the other side. The dust filter box 2 has a motor shaft 101 and pipe interfaces 201 at both ends. The pipe interfaces 201 are connected to the output shaft port 103 via flanges. The other side of the dust filter box 2 is connected to a ventilation duct. After the dust is processed by the dust filter box 2, it can be discharged normally. Two fire water pipes 203 are installed on one side of the dust filter box 2. An inspection window 202 is installed on one side of the fire water pipes 203. The inspection window 202 is rotatably connected to the dust filter box via a hinge. A cover plate 204 is installed on the top of the dust filter box 2. The cover plate 204 is bolted to the dust filter box 2. The cover plate 204 and the inspection window 202 are designed for better inspection and maintenance of the dust filter box 2. A hopper 207 is located at the bottom of the dust filter box 2, and a crushing motor 2071 is installed inside the hopper 207. A drain pipe 2072 is located below the crushing motor 2071, and a drive shaft 2073 is installed inside the drain pipe 2072. The drive shaft 2073 is rotatably connected to the crushing motor 2071. Crushing blades 2074 are arranged around the drive shaft 2073, and a shovel is located at the top of the drive shaft 2073. The blade 2075, wherein the shovel 2075 is connected to the transmission shaft 2073 by screws, and the hopper 207 is used to receive the wastewater generated during spraying. An independent drain pipe 2072 structure is installed below it. During the process of collecting and draining, the motor drives the transmission shaft 2073 and the shovel 2075 to rotate. The shovel 2075 can scoop up the powder clumps attached to the bottom surface of the hopper 207 to prevent them from accumulating and sticking. The transmission shaft 2073, together with the crushing blades 2074 on the surface, can break up the powder clumps to prevent them from clogging the pipes during transportation.
[0021] The dust filter box 2 contains a dust filter chamber 205, which houses a dust sensor structure. The sensor is attached to the inner wall of the dust filter box 2. The dust filter chamber 205 is interconnected with the turbine fan 1. The dust filter chamber 205 contains two sets of metal mesh screens 206 and water guide pipes 2033, which are alternately distributed. The metal mesh screens 206 are connected to the dust filter box 2 via a sliding shaft 2061, and the water guide pipes 2033 are connected to a fire hose 203 via internal threads. Multiple atomizing nozzles 2034 are installed on both sides of the water guide pipes 2033. The fan draws dust and air into the dust filter box. Inside the dust filter box 2, the sensor inside can detect the dust density. When the density is too high, the magnetic valve 2031 will be activated, and the dust in the air will be removed in the form of water mist through the atomizing nozzles 2034 on both sides of the water pipe 2033. This can prevent the dust density inside the pipe from being too high. One end of the fire water pipe 203 is provided with a branch water inlet 2032, and the magnetic valve 2031 is provided inside the branch water inlet 2032. The magnetic valve 2031 is connected to the fire water pipe 203 through an internal thread. The two sets of fire water pipes 203 are connected to the fire water circuit through the branch water inlet 2032, which can ensure the normal water supply of the fire water pipe 203 in the event of a fire.
[0022] The working principle is that the motor drives the turbine fan 1 to run at high speed, which draws the air inside the factory into the turbine fan 1 and the dust filter box 2 through the exhaust top window 102. The sensor inside the dust filter box 2 can detect the dust density. When the density is too high, the magnetic control valve 2031 will be activated, and the dust in the air will be removed in the form of water mist through the atomizing nozzles 2034 on both sides of the water pipe 2033. This can prevent the dust density inside the pipe from being too high.
[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An air conditioning device for preventing fires, characterized in that, The device includes a turbine fan (1) and a dust filter box (2). Both ends of the dust filter box (2) are provided with pipe interfaces (201). The pipe interfaces (201) are connected to the output shaft port (103) through flanges. Two fire water pipes (203) are provided on one side of the dust filter box (2). A hopper (207) is provided at the bottom of the dust filter box (2). A crushing motor (2071) is provided inside the hopper (207). A drain pipe (2072) is provided below the crushing motor (2071). A transmission shaft (2073) is provided inside the drain pipe (2072). The transmission shaft (2073) is rotatably connected to the crushing motor (2071). Crushing blades (2074) are provided around the transmission shaft (2073). A shovel (2075) is provided on the top of the transmission shaft (2073). The shovel (2075) is connected to the transmission shaft (2073) by screws.
2. The air conditioning device for preventing fires according to claim 1, characterized in that: The turbine fan (1) is provided with an exhaust top window (102) at the bottom. The turbine fan (1) is provided with an output shaft port (103) on one side and a motor shaft (101) on the other side. The fire water pipe (203) is provided with an inspection window (202) on one side. The inspection window (202) is rotatably connected to the dust filter box via a hinge. The dust filter box (2) is provided with a cover plate (204) on top. The cover plate (204) is connected to the dust filter box (2) via bolts.
3. The air conditioning device for preventing fires according to claim 1, characterized in that: The dust filter box (2) is provided with a dust filter chamber (205) inside. The dust filter chamber (205) is connected to the inside of the turbine fan (1). The dust filter chamber (205) is provided with two sets of metal mesh screens (206) and water guide pipes (2033).
4. The air conditioning device for preventing fires according to claim 3, characterized in that: The metal mesh screen (206) and the water guide pipe (2033) are alternately distributed, wherein the metal mesh screen (206) is connected to the dust filter box (2) through the sliding shaft (2061).
5. The air conditioning device for preventing fires according to claim 3, characterized in that: The water guide pipe (2033) is connected to the fire water pipe (203) by internal thread, and multiple atomizing nozzles (2034) are provided on both sides of the water guide pipe (2033).
6. The air conditioning device for preventing fires according to claim 5, characterized in that: One end of the fire water pipe (203) is provided with a branch water inlet (2032), and a magnetic control valve (2031) is provided on the inner side of the branch water inlet (2032). The magnetic control valve (2031) is connected to the fire water pipe (203) by an internal thread.