Pump set type fire extinguishing system

Abstract

The invention discloses a pump set type fire extinguishing system. A fire extinguishing agent tank, a pump body and a control system are arranged in an integrated cabinet body. The fire extinguishing agent tank is filled with a powdery fire extinguishing agent, one end of the fire extinguishing agent tank is connected with a fire extinguishing pipeline laid in a fire prevention area, and a nozzle is arranged on the pipeline; the pump body is communicated with the fire extinguishing agent tank through a pressurizing pipe and is controlled by a control system to operate according to fire behaviors. When the system works, after the control system monitors a fire behavior, the pump body is started, high-pressure airflow is conveyed into the fire extinguishing agent tank, and a fire extinguishing agent is output from the tank top under the action of the airflow and sprayed to a prevention area through the fire extinguishing pipeline nozzle for fire extinguishing. And after the fire is extinguished, the control system stops the pump body, and the fire extinguishing agent tank returns to the normal non-pressure state. According to the system, through the integrated design, the occupied space is reduced, the safety is improved, and the pressure resistance requirement and the maintenance difficulty of the fire extinguishing agent tank are lowered.

Description

Technical Field

[0001] The present invention relates to the technical field of fire fighting, and in particular to a pump set type fire extinguishing system. Background Art

[0002] In the field of firefighting, the efficiency and safety of the fire extinguishing system are of vital importance. Traditional fire extinguishing systems often use pressure storage fire extinguisher tanks, which need to maintain a certain internal pressure under normal conditions to ensure that the fire extinguishing agent can be quickly released in an emergency. However, this design not only increases the pressure resistance requirements of the fire extinguisher tank, resulting in an increase in manufacturing costs, but also maintains a high pressure state for a long time, which also brings potential safety risks, such as pressure leakage, tank aging and other problems, and puts forward higher requirements for maintenance.

[0003] In addition, traditional fire extinguishing systems usually have various components arranged in a dispersed manner, occupying a large space, which is not conducive to flexible installation and deployment in a limited space. This decentralized layout is particularly inconvenient, especially in places that require high integration and compactness, such as data centers and distribution rooms.

[0004] With the continuous advancement of firefighting technology and people's increasing requirements for fire safety, the market urgently needs a new type of fire extinguishing system that can extinguish fires efficiently, ensure safety, be easy to maintain, and have a compact structure. Especially for those places that need to be unattended for a long time or have limited space, it is particularly important to develop a fire extinguishing system that can automatically monitor the fire, respond quickly, and is easy to operate. Summary of the invention

[0005] The purpose of the present invention is to provide a pump-type fire extinguishing system, which aims to reduce the space occupied by the system through an integrated design, and at the same time utilize the dynamic pressurization of the pump body to maintain a pressure-free state under normal conditions of the fire extinguishing agent tank, thereby significantly reducing the pressure resistance requirements for the fire extinguishing agent tank, improving the overall safety of the system and the convenience of maintenance, so as to meet the urgent needs of the modern fire protection field for efficient, safe and compact fire extinguishing systems.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is: to provide a pump-type fire extinguishing system, the pump-type fire extinguishing system comprising: Cabinet; A fire extinguishing agent tank, which is arranged in the cabinet and is filled with a powdered fire extinguishing agent; A fire extinguishing pipe, one end of which is laid in the fire prevention area, the other end of which is connected to the top outlet of the fire extinguishing agent tank, and a nozzle is provided on the fire extinguishing pipe located in the fire prevention area; A pump body, wherein the pump body is arranged in the cabinet, and an output end of the pump body is connected to the fire extinguishing agent tank through a pressurized pipe; A control system is arranged in the cabinet, the control system is electrically connected to the pump body, and the control system controls the operation of the pump body according to the fire situation in the fire prevention zone.

[0007] In one embodiment, the control system comprises: A fire detector, wherein the fire detector is arranged in the fire prevention area; A controller, the controller is disposed in the cabinet, and the controller is electrically connected to the fire detector and the pump body; A power supply is electrically connected to the controller, and is used to supply the fire detector, the controller and the pump body with electrical energy required for operation.

[0008] In one embodiment, the control system further includes a control panel, which is disposed on the surface of the cabinet, and is electrically connected to the controller, and is used to manually control the operation of the pump body.

[0009] In one embodiment, a display screen is further included. The display screen is arranged on the surface of the cabinet. The display screen is electrically connected to the control system. The display screen is used to display the working conditions of the control system and the pump body in real time.

[0010] In one embodiment, the fire extinguishing agent tank comprises: A tank body, the tank body comprising a cylindrical inner cavity for containing a fire extinguishing agent, and a pressure inlet and an outlet arranged on the top of the tank body, the pressure pipe being closely connected with the pressure inlet, and the fire extinguishing pipeline being connected with the outlet; A sinking plate, the sinking plate is in a disc shape, the edge of the sinking plate is slidably matched with the inner layer of the tank body, a first through hole is opened at one end of the sinking plate, and a second through hole is set at the other end of the sinking plate; A pressurized hose, one end of which is connected to the pressurized pipe, and the other end of which is connected to the first through hole; A fire extinguishing hose, one end of which is connected to the bottom of the output port, and the other end of which is connected to the second through hole; A rotating shaft, the rotating shaft is rotatably arranged at the bottom of the sinking plate; A plurality of lifting plates are evenly arranged around the rotating shaft and are inclined.

[0011] In one embodiment, the cross section of the lifting plate is L-shaped, and a lifting portion is provided at the bottom of the lifting plate in an opposite direction to the tilt direction of the main body of the lifting plate.

[0012] In one embodiment, a scraper is further included. The scraper is in a ring shape and is arranged between the sinking plate and the inner wall of the tank body. The scraper is slidably fitted on the inner wall of the tank body, and the bottom surface of the scraper is an inclined surface sloping downward from the inside to the outside.

[0013] In one embodiment, a sealing cover is further included, and a fire extinguishing agent addition port is also provided on the tank body, and the fire extinguishing agent addition port is provided at the top of the output port, and the fire extinguishing pipe is connected to the side of the output port; the inner wall of the fire extinguishing agent addition port is provided with an internal thread structure, and the sealing cover is threadedly fitted on the fire extinguishing agent addition port.

[0014] In one embodiment, it also includes a lifting rope and a tension sensor, wherein the tension sensor is arranged on the sealing cover, and the tension sensor is electrically connected to the control system; the lifting rope is located in the fire extinguishing hose, one end of the lifting rope is connected to the tension sensor, and the other end of the lifting rope is connected to the sinking plate, and the length of the lifting rope is shorter than the length of the tank body.

[0015] One or more of the above technical solutions in the embodiments of the present invention have at least the following technical effects or advantages: The pump-type fire extinguishing system provided by the embodiment of the present invention greatly reduces the pressure resistance requirements of the fire extinguishing tank because the fire extinguishing tank does not maintain pressure under normal conditions (i.e., non-fire extinguishing state), reduces the potential safety hazards such as pressure leakage and tank aging caused by long-term high pressure state, thereby significantly improving the safety of the entire fire extinguishing system. In addition, the fire extinguishing tank, pump body, control system and other key components are highly integrated through the cabinet, so that the fire extinguishing system has a compact structure and occupies a small space. It is particularly suitable for places with limited space or requiring high integration, such as data centers, power distribution rooms, ships, trains, etc., which improves the space utilization efficiency. When a fire occurs, the control system can respond quickly, start the pump body to transport high-pressure airflow into the fire extinguishing tank, so that the powdered fire extinguishing agent is quickly and evenly sprayed into the fire prevention area under the airflow, effectively shortening the fire extinguishing time and improving the fire extinguishing efficiency. In addition, compared with the traditional pressure storage fire extinguisher tank, the fire extinguishing tank in the present invention is pressure-free under normal conditions, reducing the difficulty and cost of maintenance caused by the high pressure state. At the same time, the integrated design also makes the inspection and maintenance of the system more convenient, reducing the long-term operating cost. Finally, the control system can automatically judge and control the operation of the pump according to the fire situation in the fire prevention area, realizing the automation and intelligence of the fire extinguishing process without human intervention. It is particularly suitable for unmanned places or places that are difficult for personnel to reach quickly, improving the reliability and timeliness of fire emergency response.

[0016] To sum up, the pump-type fire extinguishing system provided in the embodiment of the present invention effectively solves the problems of high safety risks, large space occupation, and complex maintenance existing in traditional fire extinguishing systems, and provides an efficient, safe, compact and easy-to-maintain pump-type fire extinguishing system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of a pump-type fire extinguishing system provided by an embodiment of the present invention when the cabinet door of the cabinet is closed; Figure 2 A front view of a pump-type fire extinguishing system provided by an embodiment of the present invention with a cabinet door of the cabinet body opened; Figure 3 A schematic diagram of the back side of the pump-type fire extinguishing system provided by an embodiment of the present invention with the cabinet door of the cabinet body open; Figure 4 A schematic diagram of the internal structure of a fire extinguishing agent tank provided in an embodiment of the present invention; Figure 5 for Figure 4 A local enlarged schematic diagram of the middle A; Figure 6 for Figure 4 Schematic diagram of the structure after the fire hose is removed; Figure 7 A schematic diagram of a pump-type fire extinguishing system provided in an embodiment of the invention.

[0019] The respective reference numerals are as follows: 1. Cabinet; 2. Fire extinguishing agent tank; 3. Fire extinguishing pipeline; 4. Pump body; 5. Control system; 6. Display screen; 21. Tank body; 22. Sinking plate; 23. Pressurized hose; 24. Fire extinguishing hose; 25. Rotating shaft; 26. Lifting plate; 27. Scraper; 28. Lifting rope; 41. Pressurized pipe; 51. Controller; 52. Power supply; 53. Control panel; 211. Sealing cover; 261. Lifting part. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0021] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it 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 the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figures 1 to 3 and Figure 7 The embodiment of the present application provides a pump-type fire extinguishing system, including a cabinet 1, a fire extinguishing agent tank 2, a fire extinguishing pipeline 3, a pump body 4, and a control system 5. The fire extinguishing agent tank 2 is arranged in the cabinet 1, and the fire extinguishing agent tank 2 is filled with a powdered fire extinguishing agent; one end of the fire extinguishing pipeline 3 is laid in the fire prevention area, and the other end of the fire extinguishing pipeline 3 is connected to the top outlet of the fire extinguishing agent tank 2, and a nozzle is arranged on the fire extinguishing pipeline 3 located in the fire prevention area; the pump body 4 is arranged in the cabinet 1, and the output end of the pump body 4 is connected to the fire extinguishing agent tank 2 through a pressurized pipe 41; the control system 5 is arranged in the cabinet 1, and the control system 5 is electrically connected to the pump body 4, and the control system 5 controls the operation of the pump body 4 according to the fire situation in the fire prevention area.

[0025] The pump-type fire extinguishing system provided in this embodiment integrates the fire extinguishing agent tank 2, the pump body 4, the control system 5, etc. by using the cabinet 1, so that the fire extinguishing system occupies a smaller space. When the control system 5 detects that a fire occurs in the fire prevention area, the control system 5 immediately controls the pump body 4 to start, and the pump body 4 quickly delivers a high-pressure airflow to the fire extinguishing agent tank 2, so that the powdered fire extinguishing agent in the fire extinguishing agent tank 2 is output from the top of the fire extinguishing agent tank 2 under the entrainment of the airflow, flows along the fire extinguishing pipe 3 to the fire prevention area, and is sprayed out through the nozzle on the fire extinguishing pipe 3, thereby realizing the fire extinguishing of the fire prevention area. When the control system 5 detects that the fire is extinguished, the pump body 4 is controlled to stop working, so that the fire extinguishing agent tank 2 stops outputting the fire extinguishing agent to the fire extinguishing pipe 3. Since there is no pressure in the fire extinguishing agent tank 2 when the fire extinguishing agent tank 2 is in a normal state (i.e., in a non-fire extinguishing state), it not only reduces the pressure resistance requirement of the fire extinguishing agent tank 2, but also improves the safety of the fire extinguishing agent tank 2. Compared with the traditional pressure storage fire extinguisher tank, it is safer to use and simpler to maintain.

[0026] In one embodiment, the control system 5 includes a fire detector, a power supply 52, and a controller 51. The fire detector is arranged in the fire prevention area; the controller 51 is arranged in the cabinet 1, and the controller 51 is electrically connected to the fire detector and the pump body 4; the power supply 52 is electrically connected to the controller 51, and the power supply 52 is used to supply the fire detector, the controller 51 and the pump body 4 with the electrical energy required for the operation.

[0027] Specifically, the fire detector can be a temperature sensor or a smoke sensor, etc. By using the fire detectors arranged in the fire prevention area, it can be realized that when a fire occurs, the signal of the fire occurrence is fed back to the controller 51 in the first time, and then the fire extinguishing agent tank 2 is quickly pressurized by controlling the operation of the pump body 4. The top of the power supply 52 is connected to the external circuit through the main power supply 52 line, and the power supply 52 is used to distribute electric energy to various power consumption units (such as the pump body 4, the fire detector, the controller 51, etc.) to provide the electric energy required by each power consumption unit.

[0028] In one embodiment, the control system 5 further includes a control panel 53 . The control panel 53 is disposed on the surface of the cabinet 1 . The control panel 53 is electrically connected to the controller 51 . The control panel 53 is used to manually control the operation of the pump body 4 .

[0029] The control panel 53 serves as a human-machine interface and is electrically connected to the controller 51 in the control system 5. When it is necessary to manually control the operation of the pump body 4, the operator can input instructions through the control panel 53. After the instructions are received and parsed by the controller 51, they are converted into control signals, thereby controlling the start or stop of the pump body 4. This design allows the fire extinguishing system to have the flexibility of manual operation while maintaining the advantages of automation. By adding the control panel 53, the manual control function of the pump body 4 is realized, and the flexibility and operability of the fire extinguishing system are enhanced. In certain circumstances, such as when the automatic control system 5 fails or manual intervention is required, the operator can directly start or stop the pump body 4 through the control panel 53 to ensure that the fire extinguishing system can respond quickly and accurately.

[0030] In one embodiment, a display screen 6 is further included. The display screen 6 is arranged on the surface of the cabinet 1 . The display screen 6 is electrically connected to the control system 5 . The display screen 6 is used to display the working conditions of the control system 5 and the pump body 4 in real time.

[0031] The display screen 6 is electrically connected to the control system 5, and can receive and display real-time data from the control system 5. These data include the working status of the pump body 4 (such as start, stop, operating pressure, etc.), the operating status of the control system 5 (such as fire monitoring status, control instruction execution status, etc.) and possible fault alarm information. Through the intuitive display of the display screen 6, the operator can quickly grasp the overall status of the system, providing strong support for decision-making and intervention.

[0032] By adding a display screen 6, the real-time display of the working status of the control system 5 and the pump body 4 is realized, and the visualization and monitoring capability of the fire extinguishing system are improved. The operator can intuitively understand the operating status of the system through the display screen 6, discover and deal with potential problems in time, and ensure the reliability and stability of the fire extinguishing system.

[0033] When the pump-type fire extinguishing system in the present application is extinguishing a fire, the high-pressure gas delivered by the pump body 4 is delivered to the fire extinguishing agent tank 2 through the pressure pipe 41. Since the fire extinguishing agent in the fire extinguishing agent tank 2 is a solid powder, the fire extinguishing agent will gather at the bottom of the fire extinguishing agent tank 2. Therefore, when the pressure pipe 41 inputs high-pressure gas from the fire extinguishing agent tank 2, since the fire extinguishing pipe 3 is also connected to the top of the fire extinguishing agent tank 2, it is easy for the gas to enter the fire extinguishing agent tank 2 and then be directly discharged from the fire extinguishing pipe 3 at the top of the fire extinguishing agent tank 2. In particular, when the fire extinguishing agent content in the fire extinguishing agent tank 2 is not much, the high-pressure gas cannot fully lift the fire extinguishing agent powder, that is, the content of the fire extinguishing agent powder entrained in the high-pressure airflow entering the fire extinguishing pipe 3 is small, which leads to poor fire extinguishing effect. In order to solve the above problem, the applicant has tried to set the output port of the pressure pipe 41 at the bottom of the fire extinguishing agent tank 2. Although the high-pressure gas output by the pressure pipe 41 can fully lift the fire extinguishing agent powder. However, since the outlet of the pressurized pipe 41 is located at the bottom of the fire extinguishing agent tank 2, the upper section of the outlet of the pressurized pipe 41 is covered with a thick layer of fire extinguishing agent, resulting in the high-pressure airflow output by the pressurized pipe 41 being unable to quickly rush upward from the bottom of the fire extinguishing agent layer, thereby resulting in the inability to immediately transport the fire extinguishing agent to the fire protection area through the fire extinguishing pipe 3 for fire extinguishing, and the best fire extinguishing opportunity is easily missed; and the pressurized pipe 41 buried in the fire extinguishing agent layer is easily blocked by the fire extinguishing agent, thereby increasing the workload of the pressurized pipe 41 and the pump body 4 during fire extinguishing, and easily causing the pressurized pipe 41 to be damaged or the pump body 4 to be overloaded and damaged.

[0034] To solve the above problems, in one embodiment, the fire extinguishing agent tank 2 includes a tank body 21, a sinking plate 22, a pressurized hose 23, a fire extinguishing hose 24, a rotating shaft 25, and a plurality of lifting plates 26. Among them, the tank body 21 includes a cylindrical inner cavity for accommodating the fire extinguishing agent, and a pressure inlet and an outlet arranged at the top of the tank body 21, the pressurized pipe 41 is closely connected with the pressure inlet, and the fire extinguishing pipe 3 is connected with the outlet. The sinking plate 22 is disc-shaped, and the edge of the sinking plate 22 is slidably matched with the inner layer of the tank body 21. A first through hole is opened at one end of the sinking plate 22, and a second through hole is arranged at the other end of the sinking plate 22. One end of the pressurized hose 23 is connected with the pressurized pipe 41, and the other end of the pressurized hose 23 is connected with the first through hole. One end of the fire extinguishing hose 24 is connected with the bottom of the outlet, and the other end of the fire extinguishing hose 24 is connected with the second through hole. The rotating shaft 25 is rotatably arranged at the bottom of the sinking plate 22. The lifting plates 26 are evenly arranged around the rotating shaft 25 , and the lifting plates 26 are inclined.

[0035] When a fire occurs, the pump body 4 works to deliver high-pressure gas to the fire extinguishing agent tank 2 through the pressurizing pipe 41. The high-pressure gas passes through the pressurizing hose 23 (which can be a flexible pipe such as a bellows) and then sprays downward from the first through hole of the sinking plate 22. The downwardly sprayed high-pressure gas drives the inclined lifting plate 26 to rotate rapidly (such as Figure 4As shown in the figure, the rotation direction is counterclockwise when viewed from above), since the sinking plate 22 and the lifting plate 26 are located on the surface of the fire extinguishing agent layer, the rotating lifting plate 26 can lift the fire extinguishing agent on the surface of the fire extinguishing agent layer, so that the high-pressure gas and the fire extinguishing agent powder are fully mixed, and then enter the fire extinguishing hose 24 from the second through hole at the other end, and flow to the fire extinguishing pipe 3 through the fire extinguishing hose 24, so that the high-pressure gas can fully lift the fire extinguishing agent powder, so that the high-pressure gas can entrain more fire extinguishing agent, thereby improving the fire extinguishing effect.

[0036] Furthermore, since the outlet of the pressurized hose 23 is always on the surface of the fire extinguishing agent layer, the pressurized hose 23, the pressurized pipe 41, and the pump body 4 will not be subjected to excessive workload during fire extinguishing, thus avoiding damage to the pressurized pipe 41 or overload damage to the pump body 4.

[0037] Specifically, the sinking plate 22 can be made of a metal plate with a certain weight. Since the sinking plate 22 is slidably fitted on the inner wall of the tank body 21, as the fire extinguishing agent is consumed, the sinking plate 22 and the lifting plate 26 will automatically drop under the action of their own gravity as the fire extinguishing agent is consumed (the pressure hose 23 and the fire extinguishing hose 24 are both reserved with a sufficient length, so they will not hinder the sinking plate 22 from sliding down), so that the bottom of the lifting plate 26 is always close to the surface of the fire extinguishing agent layer. In addition, the sinking plate 22 can also play a baffle effect, preventing the high-pressure gas entering the tank body 21 from "taking a shortcut" and directly entering the fire extinguishing pipe 3 from the top output port, ensuring that the high-pressure gas can flow through the surface of the fire extinguishing agent to entrain more fire extinguishing agent, thereby ensuring the fire extinguishing effect.

[0038] like Figure 5 As shown, in one embodiment, the cross section of the lifting plate 26 is L-shaped, and a lifting portion 261 is provided at the bottom of the lifting plate 26 in the opposite direction of the main body of the lifting plate 26. When the lifting plate 26 rotates under the action of the airflow (counterclockwise when viewed from above), the lifting portion 261 at the bottom will scrape up the fire extinguishing agent on the surface of the fire extinguishing agent layer, and the fire extinguishing agent will move upward along the upper surface of the lifting portion 261, which is helpful for lifting the fire extinguishing agent, so that the fire extinguishing agent is mixed with the high-pressure gas, and then the high-pressure gas is easy to carry the fire extinguishing agent into the fire extinguishing pipe 3, thereby improving the fire extinguishing effect.

[0039] In one embodiment, a scraper 27 is further included. The scraper 27 is annular and is disposed between the sinking plate 22 and the inner wall of the tank body 21. The scraper 27 is slidably fitted to the inner wall of the tank body 21, and the bottom surface of the scraper 27 is an inclined surface that slopes downward from the inside to the outside. As the height of the fire extinguishing agent layer decreases on the sinking plate 22, the scraper 27 can scrape off the fire extinguishing agent attached to the inner wall of the tank body 21, thereby preventing the fire extinguishing agent from being attached to the inner wall of the tank body 21 for a long time and solidifying, thereby affecting the normal use of the fire extinguishing agent tank 2.

[0040] In one embodiment, a sealing cover 211 is also included, and a fire extinguishing agent addition port is also provided on the tank body 21. The fire extinguishing agent addition port is provided at the top of the output port, and the fire extinguishing pipe 3 is connected to the side of the output port; the inner wall of the fire extinguishing agent addition port is provided with an internal thread structure, and the sealing cover 211 is threadedly fitted on the fire extinguishing agent addition port. When the amount of fire extinguishing agent in the tank body 21 is insufficient, the fire extinguishing agent can be added to the tank body 21 through the fire extinguishing agent addition port by opening the sealing cover 211. The added fire extinguishing agent enters the tank body 21 below the sinking plate 22 along the fire extinguishing hose 24 through the second through hole of the sinking plate 22. After the addition is completed, it is only necessary to re-tighten the sealing cover 211 to allow the fire extinguishing agent tank 2 to extinguish the fire normally.

[0041] In one embodiment, it also includes a lifting rope 28 and a tension sensor. The tension sensor is arranged on the sealing cover 211, and the tension sensor is electrically connected to the control system 5; the lifting rope 28 is located in the fire extinguishing hose 24, one end of the lifting rope 28 is connected to the tension sensor, and the other end of the lifting rope 28 is connected to the sinking plate 22, and the length of the lifting rope 28 is shorter than the length of the tank body 21.

[0042] When it is necessary to add fire extinguishing agent to the tank body 21, it is only necessary to unscrew the sealing cover 211 and lift the sinking plate 22 and other components upwards through the lifting rope 28, so that the space of the tank body 21 below the sinking plate 22 becomes larger, and more fire extinguishing agent can be added to the tank body 21. In addition, since the length of the lifting rope 28 is shorter than the length of the tank body 21, when the fire extinguishing agent in the tank body 21 is almost consumed, the descent of the sinking plate 22 is restricted by the lifting rope 28, that is, the lifting rope 28 pulls the sinking plate 22, so that the sinking plate 22 cannot continue to descend with the surface of the fire extinguishing agent. At this time, the tension detected by the tension sensor connected to the lifting rope 28 increases significantly, and then the consumption of the fire extinguishing agent in the tank body 21 can be judged by the tension data detected by the tension sensor, so that the operator can intuitively and accurately judge whether the amount of fire extinguishing agent in the tank body 21 is sufficient during maintenance.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pump-type fire extinguishing system, characterized in that: The pump set fire extinguishing system comprises: Cabinet; A fire extinguishing agent tank, which is arranged in the cabinet and is filled with a powdered fire extinguishing agent; A fire extinguishing pipe, one end of which is laid in the fire prevention area, the other end of which is connected to the top outlet of the fire extinguishing agent tank, and a nozzle is provided on the fire extinguishing pipe located in the fire prevention area; A pump body, wherein the pump body is arranged in the cabinet, and an output end of the pump body is connected to the fire extinguishing agent tank through a pressurized pipe; A control system is arranged in the cabinet, the control system is electrically connected to the pump body, and the control system controls the operation of the pump body according to the fire situation in the fire prevention zone.

2. A pump-type fire extinguishing system according to claim 1, characterized in that: The control system comprises: A fire detector, wherein the fire detector is arranged in the fire prevention area; A controller, the controller is disposed in the cabinet, and the controller is electrically connected to the fire detector and the pump body; A power supply is electrically connected to the controller, and is used to supply the fire detector, the controller and the pump body with electrical energy required for operation.

3. A pump-type fire extinguishing system according to claim 2, characterized in that: The control system further comprises a control panel, which is arranged on the surface of the cabinet and is electrically connected to the controller. The control panel is used to manually control the operation of the pump body.

4. A pump-type fire extinguishing system according to claim 1, characterized in that: It also includes a display screen, which is arranged on the surface of the cabinet and is electrically connected to the control system. The display screen is used to display the working conditions of the control system and the pump body in real time.

5. A pump-type fire extinguishing system according to claim 1, characterized in that: The fire extinguishing agent tank comprises: A tank body, the tank body comprising a cylindrical inner cavity for containing a fire extinguishing agent, and a pressure inlet and an outlet arranged on the top of the tank body, the pressure pipe being closely connected with the pressure inlet, and the fire extinguishing pipeline being connected with the outlet; A sinking plate, the sinking plate is in a disc shape, the edge of the sinking plate is slidably matched with the inner layer of the tank body, a first through hole is opened at one end of the sinking plate, and a second through hole is set at the other end of the sinking plate; A pressurized hose, one end of which is connected to the pressurized pipe, and the other end of which is connected to the first through hole; A fire extinguishing hose, one end of which is connected to the bottom of the output port, and the other end of which is connected to the second through hole; A rotating shaft, the rotating shaft is rotatably arranged at the bottom of the sinking plate; A plurality of lifting plates are evenly arranged around the rotating shaft and are inclined.

6. A pump-type fire extinguishing system according to claim 5, characterized in that: The cross section of the lifting plate is L-shaped, and a lifting portion opposite to the inclination direction of the main body of the lifting plate is arranged at the bottom of the lifting plate.

7. A pump-type fire extinguishing system according to claim 5, characterized in that: It also includes a scraper, which is in a circular ring shape and is arranged between the sinking plate and the inner wall of the tank body. The scraper is slidably matched with the inner wall of the tank body, and the bottom surface of the scraper is an inclined surface inclined downward from the inside to the outside.

8. A pump-type fire extinguishing system according to claim 5, characterized in that: It also includes a sealing cover, and the tank body is also provided with a fire extinguishing agent addition port, the fire extinguishing agent addition port is arranged at the top of the output port, and the fire extinguishing pipe is connected to the side of the output port; the inner wall of the fire extinguishing agent addition port is provided with an internal thread structure, and the sealing cover is threadedly matched with the fire extinguishing agent addition port.

9. A pump-type fire extinguishing system according to claim 8, characterized in that: It also includes a lifting rope and a tension sensor, wherein the tension sensor is arranged on the sealing cover and is electrically connected to the control system; the lifting rope is located in the fire extinguishing hose, one end of the lifting rope is connected to the tension sensor, and the other end of the lifting rope is connected to the sinking plate, and the length of the lifting rope is shorter than the length of the tank body.

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