Liquid storage tank of nitrogen foam fire extinguishing device

Abstract

The utility model discloses a liquid storage tank of a nitrogen foam fire extinguishing device. The liquid storage tank comprises a tank body, a liquid inlet valve and a siphon, the liquid inlet valve is arranged on the side wall of the tank body and located at the position close to the bottom wall of the tank body. The siphon is arranged at the top of the tank body, and the liquid inlet valve and the siphon are respectively communicated with an inner cavity of the tank body; in the height direction of the tank body, the projection area of the tank body is in a right angle shape. According to the utility model, the stability and the safety of the tank body can be improved.

Description

Technical Field

[0001] The utility model relates to the field of energy storage cabinet fire extinguishing equipment, in particular to a liquid storage tank of a nitrogen foam fire extinguishing device. Background Art

[0002] With the vigorous development of the energy storage industry, higher and higher requirements are placed on the safety performance of energy storage systems. Today, the characteristics of small size and high energy density of energy storage cabinets are becoming increasingly apparent, and with it comes an increase in the number of batteries in the energy storage cabinets, which further limits the size of fire-fighting equipment. In the field of energy storage fire extinguishing, nitrogen foam devices have become the mainstream choice. The liquid storage tanks of nitrogen foam devices currently on the market are equipped with necessary components such as nitrogen cylinders and pump groups, resulting in insufficient volume of the liquid storage tanks and difficulties in maintenance. In addition, due to the unreasonable structural design of the existing liquid storage tanks, the liquid in the liquid storage tanks keeps shaking in the process of moving with the energy storage cabinet, which affects the stability of the energy storage cabinet. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a liquid storage tank for a nitrogen foam fire extinguishing device, which increases the volume of the liquid storage tank and reduces the difficulty of maintenance.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A liquid storage tank for a nitrogen foam fire extinguishing device comprises a tank body, a liquid inlet valve and a siphon;

[0006] The liquid inlet valve is installed on the side wall of the tank body, and the liquid inlet valve is located close to the bottom wall of the tank body;

[0007] The siphon tube is installed on the top of the tank body, and the liquid inlet valve and the siphon tube are respectively connected to the inner cavity of the tank body;

[0008] In the height direction of the tank body, the projection area of ​​the tank body is in a right angle shape;

[0009] At least two mutually perpendicular buffer plates are provided in the tank body along the distribution direction of the right angle, and in the height direction of the tank body, there is a distance between the buffer plate and the bottom wall of the tank body.

[0010] Furthermore, the two mutually perpendicular right-angled sides of the projection area are equal in length.

[0011] Furthermore, the tank body is a closed structure.

[0012] Further, it also includes a liquid level meter;

[0013] The liquid level meter is installed on the top of the tank body, and the sensing end of the liquid level meter is located in the tank body.

[0014] Further, it also includes a sealing cover and a breathing valve;

[0015] An exhaust port is provided on the top of the tank body, and the breathing valve is installed on the exhaust port;

[0016] The exhaust port is communicated with the external space through the breathing valve.

[0017] Furthermore, the liquid inlet valve is a ball valve.

[0018] Furthermore, the height of the tank body is greater than the maximum width of the tank body.

[0019] Furthermore, a handle is provided on the side wall of the tank body.

[0020] The beneficial effect of the utility model is that the projection area of ​​the tank body in the height direction is a right angle, so as to buffer the liquid in the tank body and absorb part of the energy when the energy storage cabinet moves, reduce the impact of the liquid on the inner wall of the tank body, and thus improve the stability of the tank body. The shape of the tank body can maximize its storage space within a limited space. At the same time, the liquid is fed in through the liquid inlet valve and discharged through the siphon tube, and the pipeline connection is more convenient than the existing liquid storage tank of the fire extinguishing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a liquid storage tank of a nitrogen foam fire extinguishing device in the utility model;

[0022] Figure 2 for Figure 1 A top view of

[0023] Figure 3 for Figure 1 Side view of

[0024] Figure 4 It is a cross-sectional view of a liquid storage tank of a nitrogen foam fire extinguishing device in the utility model;

[0025] Figure 5 This is a cross-sectional view of a liquid storage tank of a nitrogen foam fire extinguishing device in the utility model when viewed from above.

[0026] Description of labels:

[0027] 1. Tank body; 11. Buffer plate; 2. Liquid inlet valve; 3. Siphon; 4. Liquid level gauge; 5. Sealing cover; 6. Breathing valve; 7. Handle. DETAILED DESCRIPTION

[0028] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0029] Please refer to Figure 1-Figure 5 A liquid storage tank of a nitrogen foam fire extinguishing device comprises a tank body 1, a liquid inlet valve 2 and a siphon tube 3; the liquid inlet valve 2 is installed on the side wall of the tank body 1, and the liquid inlet valve 2 is located near the bottom wall of the tank body 1; the siphon tube 3 is installed on the top of the tank body 1, and the liquid inlet valve 2 and the siphon tube 3 are respectively connected with the inner cavity of the tank body 1; in the height direction of the tank body 1, the projection area of ​​the tank body 1 is a right angle; at least two mutually perpendicular buffer plates 11 are provided in the tank body 1 along the distribution direction of the right angle, the height of the buffer plate 11 is less than the height of the tank body 1, and in the height direction of the tank body 1, there is a spacing between the lower end of the buffer plate 11 and the bottom wall of the tank body 1, and the spacing is greater than 10 cm.

[0030] It is understandable that the projection area of ​​the tank body 1 in the height direction is in a right angle shape, so as to buffer the liquid in the tank body 1 and absorb part of the energy when the energy storage cabinet moves, reduce the impact of the liquid on the inner wall of the tank body 1, and thus improve the stability of the tank body 1. A buffer plate is also provided so that the liquid in the buffer tank body 1 can be in a limited space, maximizing its accommodation space. At the same time, the liquid is introduced through the liquid inlet valve 2 and discharged through the siphon 3, and the pipeline connection is more convenient compared to the existing fire extinguishing device liquid storage tank. In addition, the tank body 1 of this configuration has stronger stability and greatly improved pressure bearing capacity. Since the shaking of the liquid is alleviated, it can prevent the liquid from overflowing from the tank body 1, which helps to keep the liquid at a low level, and even when the tank body 1 is tilted or the road is bumpy, the liquid level can be kept stable.

[0031] In some embodiments, the two mutually perpendicular right-angled sides of the projection area are of equal length, so as to reduce the violent fluctuations of the liquid caused by external impact during transportation or movement, and improve the stability of the liquid storage tank.

[0032] In some embodiments, the tank body 1 is a closed structure to improve the sealing and stability of the tank body 1. Since the tank body 1 is a closed structure, the inlet valve 2 and the siphon 3 are used to realize the inlet and outlet of liquid, which reduces the difficulty of maintenance and pipeline connection. Specifically, when the liquid level in the tank body 1 is too low, the inlet valve 2 is connected to the pipeline to realize liquid replenishment.

[0033] In some embodiments, a liquid level meter 4 is also included; the liquid level meter 4 is installed on the top of the tank body 1, and the sensing end of the liquid level meter 4 is located inside the tank body 1. Since the tank body 1 is a closed structure, the setting of the liquid level meter 4 can sense the liquid level inside the tank body 1 and replenish the liquid in the tank body 1 in time.

[0034] In some embodiments, a sealing cover 5 is further included. An inspection opening is provided on the top of the tank body 1, and the sealing cover 5 is covered on the inspection opening.

[0035] In some embodiments, a breathing valve 6 is also included; an exhaust port is opened on the top of the tank body 1, and the breathing valve 6 is installed on the exhaust port; the exhaust port is connected to the external space through the breathing valve 6. Since negative pressure may be generated in the liquid storage tank after the pump group runs for a long time, which may cause the liquid storage tank to deform, the breathing valve 6 is set to keep the internal and external air pressure balanced to improve safety. In addition, the setting of the breathing valve 6 can also be used to assist in liquid inlet to increase the liquid replenishment speed. Preferably, the liquid inlet valve 2 is a ball valve.

[0036] In some embodiments, the height of the tank body 1 is greater than the maximum width of the tank body 1 , so as to increase the volume of the tank body 1 and maximize the volume of the tank body 1 in a limited space.

[0037] In some embodiments, a handle 7 is provided on the side wall of the tank body 1 .

[0038] Embodiment 1 of the present utility model is:

[0039] A liquid storage tank of a nitrogen foam fire extinguishing device comprises a tank body 1, a liquid inlet valve 2 and a siphon tube 3; the liquid inlet valve 2 is installed on the side wall of the tank body 1, and the liquid inlet valve 2 is located near the bottom wall of the tank body 1; the siphon tube 3 is installed on the top of the tank body 1, and the liquid inlet valve 2 and the siphon tube 3 are respectively connected to the inner cavity of the tank body 1; in the height direction of the tank body 1, the projection area of ​​the tank body 1 is a right angle; the tank body 1 has at least two mutually perpendicular buffer plates 11 along the distribution direction of the right angle, the height of the buffer plate 11 is less than the height of the tank body 1, and in the height direction of the tank body 1, there is a spacing between the upper end of the buffer plate 11 and the top of the tank body 1, and the spacing is greater than 8cm; there is a spacing between the lower end of the buffer plate 11 and the bottom wall of the tank body 1, and the spacing is greater than 10cm. Preferably, the liquid inlet end of the siphon tube 3 is arranged below the liquid inlet valve 2, and further, the spacing d between the siphon tube 3 and the bottom wall of the inner cavity of the tank body 1 is less than 3cm.

[0040] In this embodiment, the two perpendicular right-angle sides of the projection area are equal in length, and the height of the tank body 1 is greater than the maximum width of the tank body 1 .

[0041] In this embodiment, the tank body 1 is a closed structure.

[0042] In this embodiment, a liquid level meter 4, a sealing cover 5 and a breathing valve 6 are also included; the liquid level meter 4 is installed on the top of the tank body 1, and the sensing end of the liquid level meter 4 is located inside the tank body 1; an inspection port is opened on the top of the tank body 1, and the sealing cover 5 is covered on the inspection port; an exhaust port is opened on the top of the tank body 1, and the breathing valve 6 is installed on the exhaust port; the exhaust port is connected to the external space through the breathing valve 6. Preferably, the distance k between the detection end of the liquid level meter 4 and the bottom wall of the inner cavity of the tank body 1 is less than 5 cm.

[0043] In this embodiment, a handle 7 is provided on the side wall of the can body 1 .

[0044] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A liquid storage tank for a nitrogen foam fire extinguishing device, characterized in that: It includes a tank body, a liquid inlet valve and a siphon; The liquid inlet valve is installed on the side wall of the tank body, and the liquid inlet valve is located close to the bottom wall of the tank body; The siphon tube is installed on the top of the tank body, and the liquid inlet valve and the siphon tube are respectively connected to the inner cavity of the tank body; In the height direction of the tank body, the projection area of ​​the tank body is in a right angle shape; At least two mutually perpendicular buffer plates are provided in the tank body along the distribution direction of the right angle, and in the height direction of the tank body, there is a distance between the buffer plate and the bottom wall of the tank body.

2. The liquid storage tank of a nitrogen foam fire extinguishing device according to claim 1, characterized in that: The two mutually perpendicular right-angled sides of the projection area are equal in length.

3. The liquid storage tank of a nitrogen foam fire extinguishing device according to claim 1, characterized in that: The tank body is a closed structure.

4. The liquid storage tank of a nitrogen foam fire extinguishing device according to claim 1, characterized in that: Also includes a level gauge; The liquid level meter is installed on the top of the tank body, and the sensing end of the liquid level meter is located in the tank body.

5. The liquid storage tank of a nitrogen foam fire extinguishing device according to claim 1, characterized in that: Also includes a sealing cover and a breathing valve; An exhaust port is provided on the top of the tank body, and the breathing valve is installed on the exhaust port; The exhaust port is communicated with the external space through the breathing valve.

6. The liquid storage tank of a nitrogen foam fire extinguishing device according to claim 1, characterized in that: The liquid inlet valve is a ball valve.

7. The liquid storage tank of a nitrogen foam fire extinguishing device according to claim 1, characterized in that: The height of the tank body is greater than the maximum width of the tank body.

8. The liquid storage tank of a nitrogen foam fire extinguishing device according to claim 1, characterized in that: The side wall of the tank body is provided with a handle.

Images