An emergency switching device for an oil depot fire protection system

Abstract

The utility model relates to fire emergency device technical field, concretely is a kind of emergency switching device of oil depot fire-fighting system, including liquid storage tank, the top of liquid storage tank is equipped with tank cover, be equipped with first liquid storage cavity and second liquid storage cavity in liquid storage tank, first liquid storage cavity and second liquid storage cavity are equipped with first pump body and second pump body respectively, the output end of first pump body is equipped with first delivery pipe, the output end of first delivery pipe passes through the bottom of tank cover and is connected with first switching assembly, the output end of second delivery pipe passes through the bottom of tank cover and is connected with second switching assembly. The emergency switching device of oil depot fire-fighting system, by setting up U-shaped automatic liquid guide pipe and U-shaped manual liquid guide pipe in switching assembly, both can be switched automatically by solenoid valve response system instruction, and when solenoid valve fails due to fire impact, through manual valve emergency switching, ensure the reliability of oil depot fire-fighting system under extreme conditions.

Description

Technical Field

[0001] This utility model relates to the field of fire emergency device technology, specifically an emergency switching device for an oil depot fire protection system. Background Technology

[0002] Oil depot fire protection systems are specialized safety protection systems designed for flammable and explosive locations such as oil depots. Their primary function is to rapidly and effectively extinguish potential fires, ensuring the safety of equipment, property, and personnel. These systems typically consist of fire detectors, alarm systems, fire extinguishing devices, and a water supply system. In practical use, the oil depot fire protection system selects the appropriate fire extinguishing method based on the specific fire situation, potentially using fire-fighting water, foam extinguishing agents, or other extinguishing substances. Therefore, the presence of a switching device is particularly important; it enables rapid switching between different fire extinguishing needs, ensuring timely implementation of fire-fighting measures and thereby minimizing fire damage.

[0003] Utility model patent CN220989497U discloses a switching device for fire pump water and foam extinguishing agent, including a conveyor belt, a spray gun, a liquid storage container, and a switching assembly. The liquid storage container includes a first liquid storage tank and a second liquid storage tank. The conveyor belt and the liquid storage container are connected by the switching assembly. The switching assembly includes a main pipe connected to one end of the conveyor belt, and two branch pipes connected to the outside of the main pipe. Each branch pipe is equipped with a first control valve body, and the two branch pipes are respectively connected to the first liquid storage tank and the second liquid storage tank. The beneficial effect is that, by setting up the first and second liquid storage tanks, the foam extinguishing agent and fire water are stored separately. The foam extinguishing agent is pre-mixed and stored in the first liquid storage tank, and can be directly drawn out during use without mixing with the fire water. This greatly improves the efficiency of the device and avoids the problem of reduced extinguishing agent usability due to uneven mixing, thus solving the technical problems existing in the prior art.

[0004] The existing technology described above can switch the output of foam extinguishing agent and fire water through a switching assembly, controlled by two first electrically controlled valves. However, in flammable and explosive locations such as oil depots, the first electrically controlled valves may malfunction due to impact during a fire. The lack of a manual emergency switching mechanism on the switching assembly prevents the foam extinguishing agent or fire water in the branch pipes from smoothly entering the conveyor belt, thus affecting timely fire suppression. Therefore, we propose an emergency switching device for an oil depot fire protection system to solve this technical problem and ensure a rapid and effective emergency response in the event of a fire. Utility Model Content

[0005] The purpose of this invention is to provide an emergency switching device for an oil depot fire protection system to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: An emergency switching device for an oil depot fire protection system includes a storage tank with a lid on top. The storage tank contains a first storage chamber and a second storage chamber. The first storage chamber stores fire water or other basic fire extinguishing media, and the second storage chamber stores foam extinguishing agents or other special fire extinguishing media. A first pump body and a second pump body are respectively installed in the first and second storage chambers. The first pump body is used to extract the media from the first storage chamber, and the second pump body is used to extract the media from the second storage chamber. The output end of the first pump body is provided with a first delivery pipe, which is used to deliver the media from the first storage chamber to a first switching component. The output end of the first delivery pipe passes through the bottom of the lid and is connected to the first switching component. The first switching component is used to automatically or manually switch the media delivery path. The output end of the first switching component is connected to a first L-shaped liquid guide pipe, which is used to deliver the media to the delivery pipeline. The output end of the second pump body is provided with a second delivery pipe, which is used to deliver the medium in the second storage chamber to the second switching component. The output end of the second delivery pipe passes through the bottom of the tank cover and is connected to the second switching component. The second switching component is used to switch the medium delivery path by automatic or manual control. The output end of the second switching component is connected to a second L-shaped liquid guide pipe, which is used to deliver the medium to the delivery pipeline. The first L-shaped liquid guide pipe and the second L-shaped liquid guide pipe are connected to a delivery pipeline via a tee pipe e. The delivery pipeline is used to deliver the mixed medium to the fire sprinkler head. The output end of the delivery pipeline is equipped with a fire sprinkler head, which is used to spray the fire extinguishing medium to cover the fire source area.

[0007] Preferably, the first switching component includes a first U-shaped automatic liquid guide tube and a first U-shaped manual liquid guide tube. The first U-shaped automatic liquid guide tube is used to automatically control the flow of the medium through a solenoid valve, and the first U-shaped manual liquid guide tube is used to control the flow of the medium in an emergency by a manual valve when the first solenoid valve fails. The input ends of the first U-shaped automatic liquid guide tube and the first U-shaped manual liquid guide tube are connected to the first delivery pipe through a three-way pipe a. The three-way pipe a is used to divert the medium in the first delivery pipe to the automatic or manual liquid guide tube. The output ends of the first U-shaped automatic liquid guide tube and the first U-shaped manual liquid guide tube are connected to the first L-shaped liquid guide tube through a three-way pipe b. The three-way pipe b is used to direct the medium in the liquid guide tube to the first L-shaped liquid guide tube.

[0008] Preferably, the first U-shaped automatic liquid guide pipe is equipped with a first solenoid valve, which is used to receive instructions from the oil depot fire protection system and automatically open or close the liquid guide pipe. The first U-shaped manual liquid guide pipe is equipped with a first manual valve, which is used to manually open the liquid guide pipe when the first solenoid valve fails.

[0009] Preferably, the second switching component includes a second U-shaped automatic liquid guide tube and a second U-shaped manual liquid guide tube. The second U-shaped automatic liquid guide tube is used to automatically control the flow of the medium via a solenoid valve, and the second U-shaped manual liquid guide tube is used to control the flow of the medium via a manual valve in case of failure of the second solenoid valve. The input ends of the second U-shaped automatic liquid guide tube and the second U-shaped manual liquid guide tube are connected to the second delivery pipe via a three-way pipe c. The three-way pipe c is used to divert the medium from the second delivery pipe to the automatic or manual liquid guide tube. The output ends of the second U-shaped automatic liquid guide tube and the second U-shaped manual liquid guide tube are connected to the second L-shaped liquid guide tube via a three-way pipe d. The three-way pipe d is used to direct the medium from the liquid guide tube to the second L-shaped liquid guide tube.

[0010] Preferably, the second U-shaped automatic liquid guide pipe is equipped with a second solenoid valve, which is used to receive instructions from the oil depot fire protection system and automatically open or close the liquid guide pipe. The second U-shaped manual liquid guide pipe is equipped with a second manual valve, which is used to manually open the liquid guide pipe when the second solenoid valve fails.

[0011] Preferably, the first L-shaped liquid guide tube is provided with a first one-way valve. The first one-way valve is used to prevent the medium from flowing back to the first switching component and to prevent the extinguishing medium in the second liquid storage chamber from entering the first L-shaped liquid guide tube.

[0012] Preferably, the second L-shaped liquid guide tube is provided with a second one-way valve. The second one-way valve is used to prevent the medium from flowing back to the second switching component and to prevent the extinguishing medium in the first liquid storage chamber from entering the second L-shaped liquid guide tube.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. The emergency switching device of the oil depot fire protection system, by setting up a U-shaped automatic liquid guide pipe and a U-shaped manual liquid guide pipe in the switching component, can achieve automatic switching through the response of the solenoid valve to the system command, and can also achieve emergency switching through the manual valve when the solenoid valve fails due to fire impact. This ensures the reliability of the oil depot fire protection system under extreme conditions and solves the problem of fire extinguishing agent failure caused by the failure of the electrically controlled valve in the existing technology.

[0014] 2. The emergency switching device of the oil depot fire protection system uses the first and second pumps to draw out the anti-waterproof and foam extinguishing agents respectively, and controls the flow direction through independent delivery pipes and switching components, which improves the practicality of the extinguishing agent and the fire extinguishing efficiency.

[0015] 3. The emergency switching device of the oil depot fire protection system, with one-way valves on the first and second L-shaped liquid guide pipes, can effectively prevent the fire extinguishing medium from flowing back to the switching component, while also preventing the medium in different storage chambers from seeping into each other, thus ensuring the fire extinguishing effect. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of this utility model; Figure 2 This is one of the partial structural schematic diagrams of this utility model; Figure 3 This is the second partial structural schematic diagram of the present utility model; In the diagram: 100, storage tank; 101, first storage chamber; 102, second storage chamber; 110, tank cover; 200, first pump body; 210, first delivery pipe; 300, second pump body; 310, second delivery pipe; 400, first switching assembly; 410, first U-shaped automatic liquid guide pipe; 420, first U-shaped manual liquid guide pipe; 430, first solenoid valve; 440, first manual valve; 450, three-way pipe a; 460, three-way pipe b; 500, Second switching component; 510, Second U-shaped automatic liquid guide pipe; 520, Second U-shaped manual liquid guide pipe; 530, Second solenoid valve; 540, Second manual valve; 550, T-pipe c; 560, T-pipe d; 600, First L-shaped liquid guide pipe; 610, First check valve; 700, Second L-shaped liquid guide pipe; 710, Second check valve; 800, Delivery pipeline; 900, Fire sprinkler head; 1000, T-pipe e. Detailed Implementation

[0017] 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.

[0018] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] Please see Figures 1-3 This utility model provides a technical solution: An emergency switching device for an oil depot fire protection system includes a storage tank 100 with a cover 110 on top. The storage tank 100 contains a first storage chamber 101 and a second storage chamber 102. The first storage chamber 101 stores fire water or other basic fire extinguishing media, and the second storage chamber 102 stores foam extinguishing agent or other special fire extinguishing media. A first pump body 200 and a second pump body 300 are respectively installed in the first and second storage chambers 101 and 102. The first pump body 200 is used to draw the medium from the first storage chamber 101, and the second pump body 300 is used for... To extract the medium from the second storage chamber 102, the output end of the first pump body 200 is provided with a first delivery pipe 210. The first delivery pipe 210 is used to deliver the medium from the first storage chamber 101 to the first switching component 400. The output end of the first delivery pipe 210 passes through the bottom of the cover 110 and is connected to the first switching component 400. The first switching component 400 is used to switch the medium delivery path by automatic or manual control. The output end of the first switching component 400 is connected to a first L-shaped liquid guide pipe 600. The first L-shaped liquid guide pipe 600 is used to deliver the medium to the delivery pipeline 800. The output end of the second pump body 300 is provided with a second delivery pipe 310. The second delivery pipe 310 is used to deliver the medium in the second liquid storage chamber 102 to the second switching component 500. The output end of the second delivery pipe 310 passes through the bottom of the tank cover 110 and is connected to the second switching component 500. The second switching component 500 is used to switch the medium delivery path by automatic or manual control. The output end of the second switching component 500 is connected to a second L-shaped liquid guide pipe 700. The second L-shaped liquid guide pipe 700 is used to deliver the medium to the delivery pipeline 800. The first L-shaped liquid guide pipe 600 and the second L-shaped liquid guide pipe 700 are connected to a delivery pipe 800 via a tee pipe e1000. The delivery pipe 800 is used to deliver the mixed medium to the fire sprinkler head 900. The output end of the delivery pipe 800 is equipped with a fire sprinkler head 900, which is used to spray the fire extinguishing medium to cover the fire source area.

[0020] In this embodiment, the first switching component 400 includes a first U-shaped automatic liquid guide tube 410 and a first U-shaped manual liquid guide tube 420. The first U-shaped automatic liquid guide tube 410 is used to automatically control the flow of the medium through a solenoid valve, and the first U-shaped manual liquid guide tube 420 is used to control the flow of the medium through a manual valve in case of failure of the first solenoid valve 430. The input ends of the first U-shaped automatic liquid guide tube 410 and the first U-shaped manual liquid guide tube 420 are connected to the first delivery tube 210 through a three-way pipe a450. The three-way pipe a450 is used to divert the medium of the first delivery tube 210 to the automatic or manual liquid guide tube. The output ends of the first U-shaped automatic liquid guide tube 410 and the first U-shaped manual liquid guide tube 420 are connected to the first L-shaped liquid guide tube 600 through a three-way pipe b460. The three-way pipe b460 is used to direct the medium of the liquid guide tube to the first L-shaped liquid guide tube 600.

[0021] Specifically, the first U-shaped automatic liquid guide pipe 410 is equipped with a first solenoid valve 430, which is used to receive instructions from the oil depot fire protection system and automatically open or close the liquid guide pipe. The first U-shaped manual liquid guide pipe 420 is equipped with a first manual valve 440, which is used to manually open the liquid guide pipe when the first solenoid valve 430 fails.

[0022] Furthermore, the second switching component 500 includes a second U-shaped automatic liquid guide tube 510 and a second U-shaped manual liquid guide tube 520. The second U-shaped automatic liquid guide tube 510 is used to automatically control the flow of the medium through a solenoid valve, and the second U-shaped manual liquid guide tube 520 is used to control the flow of the medium through a manual valve in case of failure of the second solenoid valve 530. The input ends of the second U-shaped automatic liquid guide tube 510 and the second U-shaped manual liquid guide tube 520 are connected to the second delivery tube 310 through a three-way pipe c550. The three-way pipe c550 is used to divert the medium in the second delivery tube 310 to the automatic or manual liquid guide tube. The output ends of the second U-shaped automatic liquid guide tube 510 and the second U-shaped manual liquid guide tube 520 are connected to the second L-shaped liquid guide tube 700 through a three-way pipe d560. The three-way pipe d560 is used to direct the medium in the liquid guide tube to the second L-shaped liquid guide tube 700.

[0023] Furthermore, the second U-shaped automatic liquid guide pipe 510 is equipped with a second solenoid valve 530. The second solenoid valve 530 is used to receive instructions from the oil depot fire protection system and automatically open or close the liquid guide pipe. The first solenoid valve 430 and the second solenoid valve 530 will not open at the same time. The second U-shaped manual liquid guide pipe 520 is equipped with a second manual valve 540. The first manual valve 440 and the second manual valve 540 will not open at the same time. The second manual valve 540 is used to manually open the liquid guide pipe when the second solenoid valve 530 fails.

[0024] Furthermore, a first one-way valve 610 is provided on the first L-shaped liquid guide tube 600. The first one-way valve 610 is used to prevent the medium from flowing back to the first switching component 400 and to prevent the extinguishing medium of the second liquid storage chamber 102 from entering the first L-shaped liquid guide tube 600.

[0025] Furthermore, a second one-way valve 710 is provided on the second L-shaped liquid guide pipe 700. The second one-way valve 710 is used to prevent the medium from flowing back to the second switching component 500 and to prevent the extinguishing medium in the first liquid storage chamber 101 from entering the second L-shaped liquid guide pipe 700.

[0026] It should be noted that the first pump body 200, the second pump body 300, the first solenoid valve 430 and the second solenoid valve 530 in this utility model are all controlled by the oil depot fire protection system. The components are all general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. The specific connection means should refer to the working sequence of each electrical component in the above working principle to complete the electrical connection. The detailed connection means are the technology known in the art. The above mainly introduces the working principle and process, and will not explain the electrical control.

[0027] In this embodiment, the emergency switching device of the oil depot fire protection system stores fire water or other basic fire extinguishing media in the first storage chamber 101 of the storage tank 100, and stores foam extinguishing agent or other special fire extinguishing media in the second storage chamber 102. When a fire occurs in the oil depot, the fire control system issues a command according to the fire situation to start the first pump 200 or the second pump 300 to draw the fire extinguishing media from the first storage chamber 101 or the second storage chamber 102 respectively, and delivers the media to the corresponding first switching component 400 or second switching component 500 through the first delivery pipe 210 or the second delivery pipe 310. Under normal operating conditions, the first U-shaped automatic liquid guide pipe 410 of the first switching component 400 automatically opens upon receiving a command from the first solenoid valve 430. The media is diverted through the three-way pipe a450 and enters the first U-shaped automatic liquid guide pipe 410, and then converges to the first L-shaped liquid guide pipe 60 through the three-way pipe b460. Simultaneously, the second U-shaped automatic liquid guide pipe 510 of the second switching component 500 is automatically opened by the second solenoid valve 530. The medium is diverted through the three-way pipe c550 and enters the second U-shaped automatic liquid guide pipe 510, and then flows to the second L-shaped liquid guide pipe 700 through the three-way pipe d560. If the automatic control fails (such as the solenoid valve being damaged by impact), the first manual valve 440 of the first switching component 400 or the second manual valve 540 of the second switching component 500 is manually operated to allow the medium to complete the emergency diversion through the first U-shaped manual liquid guide pipe 420 or the second U-shaped manual liquid guide pipe 520. Subsequently, the medium in the first L-shaped liquid guide pipe 600 and the second L-shaped liquid guide pipe 700 passes through the first one-way valve 610 and the second one-way valve 710 respectively to prevent backflow and medium cross-flow, and finally flows into the delivery pipeline 800 through the three-way pipe e1000, and is sprayed by the fire sprinkler head 900 to cover the fire source area, achieving efficient fire extinguishing.

[0028] 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 preferred examples and are not intended to limit the 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. An emergency switching device for an oil depot fire protection system, comprising a liquid storage tank (100), wherein the top of the liquid storage tank (100) is provided with a tank cover (110), characterized in that: The liquid storage tank (100) is provided with a first liquid storage chamber (101) and a second liquid storage chamber (102). A first pump body (200) and a second pump body (300) are respectively provided in the first liquid storage chamber (101) and the second liquid storage chamber (102). The output end of the first pump body (200) is provided with a first delivery pipe (210). The output end of the first delivery pipe (210) passes through the bottom of the tank cover (110) and is connected to a first switching assembly (400). The output end of the first switching assembly (400) is connected to a first L-shaped liquid guide pipe (600). The output end of the second pump body (300) is provided with a second delivery pipe (310). The output end of the second delivery pipe (310) passes through the bottom of the box cover (110) and is connected to a second switching assembly (500). The output end of the second switching assembly (500) is connected to a second L-shaped liquid guide pipe (700). The first L-shaped liquid guide pipe (600) and the second L-shaped liquid guide pipe (700) are connected to a delivery pipeline (800) through a three-way pipe e (1000). The output end of the delivery pipeline (800) is provided with a fire sprinkler head (900).

2. The emergency switching device for the oil depot fire protection system according to claim 1, characterized in that: The first switching component (400) includes a first U-shaped automatic liquid guide tube (410) and a first U-shaped manual liquid guide tube (420). The input ends of the first U-shaped automatic liquid guide tube (410) and the first U-shaped manual liquid guide tube (420) are connected to the first delivery tube (210) through a three-way tube a (450). The output ends of the first U-shaped automatic liquid guide tube (410) and the first U-shaped manual liquid guide tube (420) are connected to the first L-shaped liquid guide tube (600) through a three-way tube b (460).

3. The emergency switching device for the oil depot fire protection system according to claim 2, characterized in that: The first U-shaped automatic liquid guide tube (410) is equipped with a first solenoid valve (430), and the first U-shaped manual liquid guide tube (420) is equipped with a first manual valve (440).

4. The emergency switching device for the oil depot fire protection system according to claim 1, characterized in that: The second switching component (500) includes a second U-shaped automatic liquid guide tube (510) and a second U-shaped manual liquid guide tube (520). The input ends of the second U-shaped automatic liquid guide tube (510) and the second U-shaped manual liquid guide tube (520) are connected to the second delivery tube (310) through a three-way tube c (550). The output ends of the second U-shaped automatic liquid guide tube (510) and the second U-shaped manual liquid guide tube (520) are connected to the second L-shaped liquid guide tube (700) through a three-way tube d (560).

5. The emergency switching device for the oil depot fire protection system according to claim 4, characterized in that: The second U-shaped automatic liquid guide tube (510) is equipped with a second solenoid valve (530), and the second U-shaped manual liquid guide tube (520) is equipped with a second manual valve (540).

6. The emergency switching device for the oil depot fire protection system according to claim 1, characterized in that: The first L-shaped liquid guide tube (600) is provided with a first one-way valve (610).

7. The emergency switching device for the oil depot fire protection system according to claim 1, characterized in that: The second L-shaped liquid guide tube (700) is equipped with a second one-way valve (710).

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