Lightning protection device for earthing storage tank

Abstract

The utility model relates to the field of earthing storage tanks, and discloses an earthing storage tank lightning protection device which comprises a device wall, a lightning protection grounding system is arranged in the device wall, the lightning protection grounding system comprises a thick soil layer covering the interior of the device wall, a storage tank is arranged in the thick soil layer, and a grounding grid is laid on the outer wall of the storage tank in a surrounding mode. The upper layer of the thick soil layer is covered with a soil sealing layer, and the right side of the top end of the device wall is provided with an anti-thunder lightning arrester. According to the earthing storage tank lightning protection device, the thick soil layer, the grounding grid, the soil sealing layer, the lightning protection lightning arrester and the high-pressure water pump are arranged, the grounding grid is laid on the inner layer of the thick soil layer of the earthing storage tank in a surrounding mode, and the lightning protection lightning arrester rapidly disperses lightning current to the grounding grid through a cable in the lightning guiding process; by means of the design, lightning stroke energy can be guided into the ground, the automatic fire prevention capacity is achieved, and the problem that the storage tank is struck by lightning is solved.

Description

Technical Field

[0001] This utility model relates to the field of soil-covered storage tank technology, specifically a lightning protection device for soil-covered storage tanks. Background Technology

[0002] Earthen storage tanks are mainly used to store flammable and explosive substances such as refined oil. They are usually buried underground and covered with a thick layer of soil to provide protection such as heat insulation, fire prevention, and corrosion prevention. Due to the special nature of the substances they store, if the storage tank is struck by lightning, it may have extremely serious consequences, such as damage to the tank structure, or even fire or explosion, causing great harm to the surrounding environment and operators.

[0003] Currently, the most common lightning protection measures for soil-covered storage tanks on the market mainly rely on lightning arresters to conduct lightning current into the ground. Traditional single lightning arrester designs often cannot fully guarantee the safety of the storage tank. Although lightning arresters can guide lightning current to a certain extent, their coverage and conductive path may be limited. They also lack automatic fire extinguishing devices and cannot cope with the situation where the temperature of the soil outside the storage tank rises after a lightning strike.

[0004] Therefore, there is an urgent need for a lightning protection device for covered storage tanks to improve the overall safety of covered storage tanks. Utility Model Content

[0005] The purpose of this utility model is to provide a lightning protection device for soil-covered storage tanks to solve the problem of storage tanks being susceptible to lightning strikes mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a lightning protection device for a soil-covered storage tank, comprising a device wall, a lightning protection grounding system installed within the device wall, the lightning protection grounding system comprising a thick soil layer (thickness greater than 0.5 meters) covering the inside of the device wall, a storage tank installed within the thick soil layer, a grounding grid laid around the outer wall of the storage tank, a sealing soil layer covering the thick soil layer, a lightning arrester installed on the right side of the top of the device wall, the lightning arrester and the grounding grid being electrically connected by a cable, and a flame arrester lightning protection device installed on the left side of the top of the device wall, the flame arrester lightning protection device comprising a water storage tank fixed on the left side of the top of the device wall, multiple sets of water collection tanks installed in the water storage tank, a collection pipe connected to the bottom of each set of water collection tanks, a water supply pipe connected to the bottom of the collection pipe, the water supply pipe extending to the outside of the water storage tank and installed above the sealing soil layer, a high-pressure water pump installed at the input end of the water supply pipe, and a flame arrester installed at the output end of the water supply pipe.

[0007] Preferably, the lightning arresters are distributed at the edge of the soil-covered area on top of the device wall, and a set of humidity sensors are installed on the right side of the top of the device wall.

[0008] Preferably, the flame arresters are evenly distributed above the sealing layer, and the flame arresters are brass self-rotating sprinkler heads.

[0009] Preferably, the water supply pipes are arranged in four groups horizontally, and the water collection tanks are arranged in eight groups, each corresponding to a water supply pipe in pairs.

[0010] Preferably, the water collection trough consists of a hopper and a water storage section, with the hopper located at the upper part of the water collection trough and the water storage section located at the lower part of the water collection trough. An interception net is horizontally installed at the junction of the hopper and the water storage section.

[0011] Preferably, the interception net is a porous filter plate made of metal material, and four sets of pull tabs are movably assembled on the inner wall of the bucket. Each pull tab is fixedly connected to a spring rod at its bottom end. Insertion holes are opened at the four corners of the interception net, and the bottom end of the spring rod is inserted into the insertion hole.

[0012] Preferably, the sealing layer is made of sandy loam mixed with water-retaining particles and conductive salts, and is uniformly covered on top of the thick soil layer.

[0013] Preferably, an oil gauging hole and a light-transmitting hole are installed on the right side of the top of the device wall. The bottom of the oil gauging hole and the light-transmitting hole are connected to the storage tank. Multiple sets of breathing valves are installed at the sealing layer. The breathing valves, oil gauging hole, light-transmitting hole and humidity sensor are coated with a lightning protection coating.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the lightning protection device for the soil-covered storage tank not only protects the structural safety of the storage tank, but also has the ability to automatically prevent fire, resist lightning current, ensure that the components are not damaged by lightning, and collect rainwater to provide a source for fire prevention.

[0015] (1) By setting up a thick soil layer, grounding grid, sealing soil layer, lightning arrester and high-pressure water pump, the thickness of the soil layer of the soil-covered storage tank is greater than 0.5 meters, which greatly improves the ability to resist lightning strikes. The inner layer of the thick soil layer is surrounded by a grounding grid to provide a good conductive path, thereby guiding the lightning current. During the lightning attraction process, the lightning arrester quickly disperses the lightning current to the grounding grid through the cable, effectively preventing the lightning strike from directly acting on the storage tank. When the surface of the sealing soil layer may catch fire due to high temperature, the high-pressure water pump is automatically triggered to draw water from the water tank and guide it through the water supply pipe to the flame arrester to spray water on the surface of the sealing soil layer to extinguish the fire. This design can not only conduct the energy of the lightning strike into the ground and protect the structural safety of the storage tank, but also has the ability to automatically prevent fire, ensuring that the fire risk of the storage tank after the lightning strike is minimized, and enhancing the safety and protection effect of the equipment.

[0016] (2) By setting up a breather valve, oil metering hole and light-transmitting hole, humidity sensor and lightning protection coating, the outer surface of the key components of the soil-covered storage tank is coated with a lightning protection coating, forming a barrier against lightning current, preventing lightning from directly hitting these important components, and preventing equipment failure due to short circuit or overheating, ensuring the normal operation of the storage tank and solving the problem of lightning damage to storage tank components.

[0017] (3) By setting up a water storage tank, a water collection trough, an interception net, a pull plate and a spring rod, the water storage tank is arranged on the left side of the top of the device wall. It can automatically collect rainwater and filter impurities through the interception net when the rainwater enters the water collection trough, providing a reliable fire extinguishing water source for the fire arrester. At the same time, it is easy to maintain and clean, and avoids impurities in the water source from clogging the fire arrester. Attached Figure Description

[0018] Figure 1 This is a frontal cross-sectional view of the present invention.

[0019] Figure 2 This is a front view schematic diagram of the flame arrester of this utility model;

[0020] Figure 3 This is a top view of the distribution of the flame arrester of this utility model;

[0021] Figure 4 This is a front enlarged structural schematic diagram of the water collection tank of this utility model.

[0022] In the diagram: 1. Device wall; 2. Oil gauging hole and light-transmitting hole; 3. Lightning arrester; 4. Humidity sensor; 5. Breathing valve; 6. Flame arrester; 7. Water supply pipe; 8. Sealing layer; 9. High-pressure water pump; 10. Water storage tank; 11. Water collection trough; 12. Combustion pipe; 13. Thick soil layer; 14. Grounding grid; 15. Container section; 16. Water storage section; 17. Interception net; 18. Insertion hole; 19. Spring rod; 20. Pull tab. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-4An embodiment of this utility model provides a lightning protection device for a soil-covered storage tank, comprising a device wall 1, a lightning protection grounding system installed inside the device wall 1, the lightning protection grounding system including a thick soil layer 13 covering the inside of the device wall 1, a storage tank installed inside the thick soil layer 13, a grounding grid 14 surrounding the outer wall of the storage tank, a sealing soil layer 8 covering the thick soil layer 13, a lightning arrester 3 installed on the right side of the top of the device wall 1, the lightning arrester 3 and the grounding grid 14 being electrically connected by a cable, and a flame arrester lightning protection device installed on the left side of the top of the device wall 1, the flame arrester lightning protection device including a water storage tank 10 fixed on the left side of the top of the device wall 1, multiple sets of water collection tanks 11 installed inside the water storage tank 10, a collection pipe 12 connected to the bottom of each set of water collection tanks 11, a water supply pipe 7 connected to the bottom of the collection pipe 12, the water supply pipe 7 extending to the outside of the water storage tank 10 and installed above the sealing soil layer 8, a high-pressure water pump 9 installed at the input end of the water supply pipe 7, and a flame arrester 6 installed at the output end of the water supply pipe 7;

[0025] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the thick soil layer 13 of the soil-covered storage tank is more than 0.5 meters thick, with a grounding grid 14, a sealing soil layer 8, a lightning arrester 3, and a high-pressure water pump 9. It has a large lightning protection capability. The inner layer of the thick soil layer 13 is surrounded by a grounding grid 14 to provide a good conductive path to guide the lightning current. During the lightning attraction process, the lightning arrester 3 quickly disperses the lightning current to the grounding grid 14 through the cable, effectively preventing the lightning from directly hitting the storage tank. When the surface of the sealing soil layer 8 may catch fire due to high temperature, the high-pressure water pump 9 is automatically triggered to draw water from the water tank 10 and guide it through the water supply pipe 7 to the flame arrester 6 to spray water on the surface of the sealing soil layer 8 to extinguish the fire.

[0026] The sealing layer 8 is made of sandy loam mixed with water storage particles and conductive salt, and is evenly covered on top of the thick soil layer 13. An oil measuring hole and a light-transmitting hole 2 are installed on the right side of the top of the device wall 1. The bottom of the oil measuring hole and the light-transmitting hole 2 are connected to the storage tank. Multiple sets of breathing valves 5 are installed at the sealing layer 8. The breathing valves 5, the oil measuring hole and the light-transmitting hole 2 and the humidity sensor 4 are coated with a lightning protection coating.

[0027] Specifically, such as Figure 1 and Figure 2 As shown, by setting up a breather valve 5, an oil gauging hole and a light-transmitting hole 2, a humidity sensor 4, and a lightning protection coating, the outer surfaces of the key components of the soil-covered storage tank are all coated with a lightning protection coating, forming a barrier against lightning current and preventing lightning from directly striking these important components.

[0028] The water collection tank 11 consists of a bucket 15 and a water storage section 16. The bucket 15 is located at the upper part of the water collection tank 11, and the water storage section 16 is located at the lower part of the water collection tank 11. A cross-sectional mesh 17 is horizontally installed at the connection between the bucket 15 and the water storage section 16. The cross-sectional mesh 17 is a porous metal filter plate. Four sets of pull tabs 20 are movably installed on the inner wall of the bucket 15. A spring rod 19 is fixedly connected to the bottom of each pull tab 20. Insertion holes 18 are opened at the four corners of the cross-sectional mesh 17. The bottom of the spring rod 19 is inserted into the insertion hole 18.

[0029] Specifically, such as Figure 1 and Figure 4 As shown, the water storage tank 10, which is equipped with a water collection tank 10, a water collection trough 11, an interception net 17, a pull tab 20, and a spring rod 19, is arranged on the top left side of the device wall 1. It can automatically collect rainwater and filter impurities through the interception net 17 when the rainwater enters the water collection trough 11. The interception net 17 can be quickly removed. When cleaning is required, simply lift the pull tab 20 and the spring rod 19 will come out of the socket 18 to quickly remove the interception net 17 and provide a reliable fire extinguishing water source for the flame arrester 6.

[0030] Working principle: The thick soil layer 13 of the soil-covered storage tank is set at more than 0.5 meters, which has a large lightning protection capability. The inner layer of the soil-covered layer 13 is surrounded by a grounding grid 14 to provide a good conductive path, thereby guiding the lightning current. During the lightning attraction process, the lightning arrester 3 quickly disperses the lightning current to the grounding grid 14 through the cable, effectively preventing the lightning from directly hitting the storage tank. When the surface of the soil-covered layer 8 may catch fire due to high temperature, the high-pressure water pump 9 is automatically triggered to draw water from the water storage tank 10, which is guided through the water supply pipe 7 to the flame arrester 6 and sprayed onto the surface of the soil-covered layer 8. To achieve fire extinguishing, the outer surfaces of key components of the soil-covered storage tank are coated with a lightning protection coating, forming a barrier against lightning current and preventing direct lightning strikes on these important components. This prevents equipment failure due to short circuits or overheating, ensuring the normal operation of the storage tank. The storage tank 10, located on the top left side of the device wall 1, is equipped with a water storage tank 10, a water collection trough 11, an interception net 17, a pull plate 20, and a spring rod 19. It can automatically collect rainwater and filter impurities through the interception net 17 when the rainwater enters the water collection trough 11, providing a reliable fire extinguishing water source for the flame arrester 6.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A lightning protection device for a soil-covered storage tank, comprising a device wall (1), characterized in that: A lightning protection grounding system is installed inside the device wall (1). The lightning protection grounding system includes a thick soil layer (13) covering the inside of the device wall (1). A storage tank is installed inside the thick soil layer (13). A grounding grid (14) is laid around the outer wall of the storage tank. A sealing soil layer (8) is installed on top of the thick soil layer (13). A lightning arrester (3) is installed on the right side of the top of the device wall (1). The lightning arrester (3) and the grounding grid (14) are electrically connected by a cable. A flame arrester lightning protection device is installed on the left side of the top of the device wall (1). The fire arrester lightning protection device includes a water storage tank (10) fixed on the left side of the top of the device wall (1). The water storage tank (10) is equipped with multiple sets of water collection tanks (11). Each set of water collection tanks (11) is connected to a collection pipe (12) at the bottom. The collection pipe (12) is connected to a water supply pipe (7) at the bottom. The water supply pipe (7) extends to the outside of the water storage tank (10) and is installed above the sealing layer (8). A high-pressure water pump (9) is installed at the input end of the water supply pipe (7), and a fire arrester (6) is installed at the output end of the water supply pipe (7).

2. The lightning protection device for a soil-covered storage tank according to claim 1, characterized in that: The lightning arrester (3) is distributed at the edge of the soil-covered area on the top of the device wall (1), and a set of humidity sensors (4) is installed on the right side of the top of the device wall (1).

3. The lightning protection device for a soil-covered storage tank according to claim 1, characterized in that: The flame arresters (6) are evenly distributed above the sealing layer (8), and the flame arresters (6) are brass self-rotating spray heads.

4. The lightning protection device for a soil-covered storage tank according to claim 1, characterized in that: The water supply pipes (7) are arranged in four groups horizontally, and the water collection tanks (11) are arranged in eight groups, each corresponding to one or both water supply pipes (7).

5. A lightning protection device for a soil-covered storage tank according to claim 1, characterized in that: The water collection trough (11) is composed of a bucket (15) and a water storage part (16). The bucket (15) is located at the upper part of the water collection trough (11), and the water storage part (16) is located at the lower part of the water collection trough (11). An interception net (17) is horizontally installed at the connection between the bucket (15) and the water storage part (16).

6. A lightning protection device for a soil-covered storage tank according to claim 5, characterized in that: The interception net (17) is a porous filter plate made of metal material. The inner wall of the bucket (15) is movably equipped with four sets of pull tabs (20). The bottom end of each pull tab (20) is fixedly connected to a spring rod (19). The four corners of the interception net (17) are provided with insertion holes (18). The bottom end of the spring rod (19) is inserted into the insertion hole (18).

7. A lightning protection device for a soil-covered storage tank according to claim 1, characterized in that: The sealing layer (8) is made of sandy loam mixed with water-retaining particles and conductive salts, and is uniformly covered on top of the thick soil layer (13), the thickness of which is greater than 0.5 meters.

8. A lightning protection device for a soil-covered storage tank according to claim 1, characterized in that: An oil measuring hole and a light-transmitting hole (2) are installed on the right side of the top of the device wall (1). The bottom of the oil measuring hole and the light-transmitting hole (2) are connected to the storage tank. Multiple sets of breathing valves (5) are installed at the sealing layer (8). The breathing valves (5), the oil measuring hole and the light-transmitting hole (2) and the humidity sensor (4) are coated with lightning protection coating.

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