A high-temperature-resistant heptafluoropropane fire extinguishing device

Abstract

The utility model discloses a kind of heptafluoro-propane fire extinguishing devices of high temperature resistance, comprising: box, the box has box door;Placement groove, the placement groove is opened on the downside inner wall of box;Tank, the tank is arranged in placement groove.Compared with prior art, by the swing injection mechanism of setting, when fire occurs, drive spray head constantly reciprocating swing injection, so that extinguishing agent can cover larger area, improve the efficiency of fire extinguishing;By the positioning mechanism of setting, the positioning of tank can be quickly completed, positioning can be completed without using motor, simple structure, more convenient;By the tank of outer protective layer, intermediate reflection layer and inner heat insulation layer, the influence of high temperature environment on tank is effectively reduced, the safety and stability under high temperature environment are improved.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguishing device technology, and in particular to a high-temperature resistant heptafluoropropane fire extinguishing device. Background Technology

[0002] Heptafluoropropane fire extinguishing systems are devices that primarily use heptafluoropropane gas as the extinguishing agent. They can be broadly categorized into three types: piped heptafluoropropane fire extinguishing systems, cabinet-type heptafluoropropane fire extinguishing systems, and suspended heptafluoropropane fire extinguishing systems. They are widely used in important locations such as computer rooms, power distribution rooms, and archives.

[0003] Chinese Patent CN218900657U discloses a high-temperature resistant heptafluoropropane fire extinguishing device, including an installation box. The installation box has a door on its front. Inside the installation box is a tank. A connecting pipe is installed on the top of the tank. Both sides of the connecting pipe are connected to bent pipes. Nozzles are fixedly installed on both sides of the front of the installation box. The tops of the bent pipes communicate with the nozzles. Arc-shaped retaining plates are provided on both sides of the bottom of the inner cavity of the installation box. An installation groove and a limit groove are provided at the bottom of the inner cavity of the installation box. A movable block is fixedly installed at the bottom of the card plate. The bottom of the movable block passes through the limiting groove and extends into the interior of the mounting groove. A bidirectional threaded rod is provided inside the mounting groove. A threaded sleeve is fixedly installed at the bottom of the movable block. The threaded sleeve is fitted onto the surface of the bidirectional threaded rod and threadedly connected to the bidirectional threaded rod. A driven wheel is fixedly installed on the surface of the bidirectional threaded rod. A servo motor is fixedly installed at the bottom of the inner cavity of the mounting groove. A drive wheel is fixedly installed at the output end of the servo motor. A transmission belt is drivingly connected to the surfaces of the drive wheel and the driven wheel. The surface of the tank is coated with a high-temperature resistant layer.

[0004] As mentioned above, existing fire extinguishing devices have several shortcomings. First, the nozzles are fixed in position, resulting in a single-direction spray of the extinguishing agent during a fire, limiting its coverage and making it difficult to effectively extinguish the fire comprehensively. This may lead to the spread of the fire and affect the extinguishing effect. Second, using a motor to position the tank is not only structurally complex but also increases operating and maintenance costs due to the use of electrical components. Third, simply adding a high-temperature resistant layer has limited high-temperature resistance. Utility Model Content

[0005] The main purpose of this invention is to provide a high-temperature resistant heptafluoropropane fire extinguishing device, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a high-temperature resistant heptafluoropropane fire extinguishing device, comprising: The box body has a door; A placement slot is provided on the lower inner wall of the housing; A tank body, wherein the tank body is disposed within a placement slot; A positioning mechanism is provided in the placement slot and is used to position the tank. A swinging spray mechanism is installed inside the housing and is used to swing and spray heptafluoropropane extinguishing agent. As a further description of the above technical solution, the positioning mechanism includes four slots, which are arranged around the wall of the placement slot. A wedge-shaped positioning block is slidably disposed in each slot, and a clamping spring is provided between the wedge-shaped positioning block and the slot.

[0007] As a further description of the above technical solution, the swing spray mechanism includes a first support plate and a second support plate. Both the first support plate and the second support plate are fixedly installed on the inner wall of one side of the housing. A swing plate is rotatably provided on the upper side wall of the first support plate. A nozzle is fixedly connected to the upper side wall of the swing plate. The nozzle is connected to the discharge port of the tank through a hose. A motor is installed on the lower side wall of the second support plate. The output shaft of the motor passes through the second support plate and is fixedly connected to a crank arm. A connecting rod is rotatably provided on the upper side wall of the crank arm. The other end of the connecting rod is rotatably connected to the lower side wall of the swing plate.

[0008] As a further description of the above technical solution, the tank body is composed of an outer protective layer, an intermediate reflective layer and an inner heat insulation layer from the outside to the inside. The outer protective layer is made of ceramic fiber, the intermediate reflective layer is an aluminized polyimide film, and the inner heat insulation layer is made of aerogel felt material.

[0009] As a further description of the above technical solution, a pressure sensor and a solenoid valve are provided on the discharge port of the tank, and a smoke sensor is provided on one side of the outer wall of the box.

[0010] As a further description of the above technical solution, a controller is provided on one inner wall of the housing, and the pressure sensor, solenoid valve, smoke sensor and motor are all electrically connected to the controller.

[0011] As a further description of the above technical solution, a through groove is provided on one side wall of the housing, and the through groove provides space for the nozzle to swing.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. The oscillating spray mechanism enables the nozzle to continuously oscillate and spray during a fire, allowing the extinguishing agent to cover a larger area and improving fire extinguishing efficiency.

[0013] 2. The positioning mechanism allows for quick positioning of the tank without the need for a motor, resulting in a simple and convenient structure.

[0014] 3. The tank body, composed of an outer protective layer, a middle reflective layer, and an inner heat insulation layer, effectively reduces the impact of high-temperature environments on the tank body, improving its safety and stability under high-temperature conditions. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a high-temperature resistant heptafluoropropane fire extinguishing device according to this utility model. Figure 2 This is a schematic diagram of the placement tank structure of a high-temperature resistant heptafluoropropane fire extinguishing device according to this utility model. Figure 3 This is a schematic diagram of the internal structure of the casing of a high-temperature resistant heptafluoropropane fire extinguishing device according to this utility model. Figure 4 This is a cross-sectional view of the placement slot of a high-temperature resistant heptafluoropropane fire extinguishing device according to this utility model. Figure 5 This is a schematic diagram of the swing spray mechanism of a high-temperature resistant heptafluoropropane fire extinguishing device according to this utility model. Figure 6 This is a schematic diagram of the tank structure of a high-temperature resistant heptafluoropropane fire extinguishing device according to this utility model. In the diagram: 1. Box body; 11. Box door; 2. Placement slot; 3. Tank body; 4. Positioning mechanism; 5. Swinging spray mechanism; 41. Slot cavity; 42. Wedge positioning block; 43. Pressing spring; 51. First support plate; 52. Swinging plate; 53. Nozzle; 54. Second support plate; 55. Motor; 56. Crank arm; 57. Connecting rod; 31. Outer protective layer; 32. Middle reflective layer; 33. Inner heat insulation layer; 34. Pressure sensor; 35. Solenoid valve; 7. Smoke sensor; 6. Controller; 12. Through slot. Detailed Implementation

[0016] To make the technical means, creative features, and objectives of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments.

[0017] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Please see Figure 1-6 This utility model provides a high-temperature resistant heptafluoropropane fire extinguishing device, comprising: Box 1, Box 1 has a door 11; Placement slot 2 is located on the lower inner wall of box 1; Tank 3 is placed inside the placement slot 2; Positioning mechanism 4 is installed in the placement slot 2 and is used to position the tank 3. The swing spray mechanism 5 is installed inside the housing 1 and is used to swing and spray heptafluoropropane extinguishing agent.

[0020] The above structure enables the nozzle 53 to oscillate and spray, as well as to quickly position the tank 3.

[0021] The positioning mechanism 4 includes four cavities 41, which are arranged around the wall of the placement cavities 2. A wedge-shaped positioning block 42 is slidably disposed in the cavity 41, and a clamping spring 43 is disposed between the wedge-shaped positioning block 42 and the cavity 41.

[0022] With the above structure, the tank 3 placed in the placement slot 2 can be positioned. The structure is simple and the positioning method is convenient and quick.

[0023] The oscillating spray mechanism 5 includes a first support plate 51 and a second support plate 54. Both the first support plate 51 and the second support plate 54 are fixedly installed on the inner wall of one side of the housing 1. An oscillating plate 52 is rotatably installed on the upper side wall of the first support plate 51. A nozzle 53 is fixedly connected to the upper side wall of the oscillating plate 52. The nozzle 53 is connected to the discharge port of the tank 3 through a hose. A motor 55 is installed on the lower side wall of the second support plate 54. The output shaft of the motor 55 passes through the second support plate 54 and is fixedly connected to a crank arm 56. A connecting rod 57 is rotatably installed on the upper side wall of the crank arm 56. The other end of the connecting rod 57 is rotatably connected to the lower side wall of the oscillating plate 52.

[0024] With the above-mentioned structure, the nozzle 53 can be driven to continuously swing back and forth to spray in the event of a fire, so that the extinguishing agent can cover a larger area and improve the extinguishing efficiency.

[0025] The tank body 3 consists of an outer protective layer 31, a middle reflective layer 32, and an inner heat insulation layer 33, from the outside to the inside. The outer protective layer 31 is made of ceramic fiber, the middle reflective layer 32 is made of aluminum-plated polyimide film, and the inner heat insulation layer 33 is made of aerogel felt material.

[0026] With the above-mentioned structure, the aerogel felt has an extremely low thermal conductivity, which can effectively block heat transfer to the tank 3. The aluminized polyimide film can reflect most of the heat radiation, further reducing the amount of heat entering the tank 3. The ceramic fiber has good high temperature resistance, wear resistance and tear resistance, which can protect the tank 3 from external physical damage and extend its service life.

[0027] Among them, a pressure sensor 34 and a solenoid valve 35 are installed on the discharge port of the tank body 3, and a smoke sensor 7 is installed on one side of the outer wall of the box body 1.

[0028] With the above-mentioned structure, the pressure sensor 34 can monitor the pressure inside the tank 3, the solenoid valve 35 can control the opening and closing of the discharge port of the tank 3, and the smoke sensor 7 can monitor the concentration of smoke to achieve fire prevention.

[0029] The inner wall of one side of the housing 1 is equipped with a controller 6, and the pressure sensor 34, solenoid valve 35, smoke sensor 7 and motor 55 are all electrically connected to the controller 6.

[0030] With the above structure, when the smoke sensor 7 detects an increase in smoke concentration, it will send a signal to the controller 6. The controller 6 will open the solenoid valve 35 and the motor 55 through the intermediate relay. After the solenoid valve 35 is opened, the extinguishing agent enters the hose through the discharge port of the tank 3 and is then sprayed out through the nozzle 53. When the pressure sensor 34 detects an abnormal pressure in the tank 3, the controller 6 can control the solenoid valve 35 to open, so that the tank 3 releases pressure and ensures the safe operation of the device.

[0031] It should be noted that the controller 6 mentioned above uses an STM32 microcontroller. The input and output pins of the microcontroller are connected to the pressure sensor 34, solenoid valve 35, smoke sensor 7, motor 55 and intermediate relay as described above. This can be achieved by programming the microcontroller. The circuit and program used are common technologies in the field of microcontrollers. Those skilled in the art can easily derive the specific circuit based on the above control relationship description. Therefore, the specific circuit will not be described in detail in this article.

[0032] Among them, a through groove 12 is provided on one side wall of the housing 1, which provides space for the nozzle 53 to swing.

[0033] It should be noted that this utility model is a high-temperature resistant heptafluoropropane fire extinguishing device. In use, open the door 11 and insert the canister 3 into the placement slot 2 with slight force. When the canister 3 is inserted into the placement slot 2, the bottom end of the canister 3 will press against the inclined surfaces of the four wedge-shaped positioning blocks 42. After being compressed, the four wedge-shaped positioning blocks 42 will retract into the slot cavity 41, compressing the clamping spring 43. When the bottom wall of the canister 3 contacts the lower side wall of the placement slot 2, the four wedge-shaped positioning blocks 42 will press tightly against the groove under the push of the clamping spring 43. The tank 3 is clamped to achieve its positioning. Then, the discharge port of the tank 3 is connected to the hose. In the event of a fire, the extinguishing agent in the tank 3 enters the nozzle 53 through the hose. The nozzle 53 sprays the extinguishing agent to extinguish the fire. The output shaft of the motor 55 drives the crank arm 56 to rotate. When the crank arm 56 rotates, the swing plate 52 will swing back and forth continuously under the drive of the connecting rod 57, thereby driving the nozzle 53 to swing continuously, increasing the spray range of the nozzle 53.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-temperature resistant heptafluoropropane fire extinguishing device, characterized in that, include: Box (1), the box (1) having a door (11); Placement slot (2), the placement slot (2) is opened on the lower inner wall of the box (1); The tank (3) is disposed in the placement slot (2); Positioning mechanism (4), which is set in the placement slot (2), is used to position the tank (3); A swinging spray mechanism (5) is installed inside the housing (1) and is used to swing and spray heptafluoropropane extinguishing agent. The swing spray mechanism (5) includes a first support plate (51) and a second support plate (54). The first support plate (51) and the second support plate (54) are both fixedly installed on the inner wall of one side of the box (1). A swing plate (52) is rotatably provided on the upper side wall of the first support plate (51). A nozzle (53) is fixedly connected to the upper side wall of the swing plate (52). The nozzle (53) is connected to the discharge port of the tank (3) through a hose. A motor (55) is installed on the lower side wall of the second support plate (54). The output shaft of the motor (55) passes through the second support plate (54) and is fixedly connected to a crank arm (56). A connecting rod (57) is rotatably provided on the upper side wall of the crank arm (56). The other end of the connecting rod (57) is rotatably connected to the lower side wall of the swing plate (52).

2. The high-temperature resistant heptafluoropropane fire extinguishing device according to claim 1, characterized in that, The positioning mechanism (4) includes four cavities (41), which are arranged around the wall of the placement groove (2). A wedge-shaped positioning block (42) is slidably provided in the cavity (41), and a clamping spring (43) is provided between the wedge-shaped positioning block (42) and the cavity (41).

3. The high-temperature resistant heptafluoropropane fire extinguishing device according to claim 1, characterized in that, The tank body (3) consists of an outer protective layer (31), an intermediate reflective layer (32) and an inner heat insulation layer (33) from the outside to the inside. The outer protective layer (31) is made of ceramic fiber, the intermediate reflective layer (32) is an aluminized polyimide film, and the inner heat insulation layer (33) is made of aerogel felt material.

4. A high-temperature resistant heptafluoropropane fire extinguishing device according to claim 2, characterized in that, The tank (3) is equipped with a pressure sensor (34) and a solenoid valve (35) at the discharge port, and a smoke sensor (7) is provided on one side of the outer wall of the box (1).

5. A high-temperature resistant heptafluoropropane fire extinguishing device according to claim 4, characterized in that, A controller (6) is provided on one inner wall of the housing (1). The pressure sensor (34), solenoid valve (35), smoke sensor (7) and motor (55) are all electrically connected to the controller (6).

6. A high-temperature resistant heptafluoropropane fire extinguishing device according to claim 2, characterized in that, A through groove (12) is provided on one side wall of the housing (1), and the through groove (12) provides a swing space for the nozzle (53).

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