Spraying device of liquefied natural gas storage tank

Abstract

The utility model relates to the technical field of natural gas storage tank spraying, and discloses a liquefied natural gas storage tank spraying device which comprises a base, a rotating transposition mechanism is arranged in the base, a spraying cooling mechanism is arranged outside the base, the rotating transposition mechanism comprises an annular rail, and the annular rail is arranged in the base. Limiting sliding blocks are slidably installed in the annular rail, a sliding plate is fixedly installed at the top of the limiting sliding blocks, a protection box is fixedly installed at the top of the sliding plate, a motor is fixedly installed in the protection box, a gear is fixedly installed at the output end of the motor, and an inner gear ring is arranged on the inner wall of the base. According to the liquefied natural gas storage tank spraying device, through the arranged rotating transposition mechanism, in the using process, the motor drives the spraying pipe to rotate around the storage tank, the single spraying pipe conducts spraying cooling on the storage tank, and therefore in the using process, a large number of pipelines do not need to be arranged, and the storage tank cannot be blocked.

Description

Technical Field

[0001] This utility model relates to the field of natural gas storage tank spraying technology, specifically a liquefied natural gas storage tank spraying device. Background Technology

[0002] Liquefied natural gas (LNG) storage tank sprinkler systems are crucial facilities for ensuring the safe operation of LNG storage tanks. When a tank is exposed to external heat or direct sunlight, the tank wall temperature rises, potentially leading to increased internal pressure. The sprinkler system sprays cold water onto the tank surface, allowing the water to absorb heat during evaporation, thus lowering the tank temperature and preventing excessive pressure buildup. Furthermore, in emergencies such as fires, the sprayed water forms a film on the tank surface, acting as a barrier against heat radiation and preventing direct contact between flames and high temperatures, reducing the risk of explosions or leaks. It also cools the surrounding air, minimizing the volatilization and diffusion of flammable gases.

[0003] Currently, the spray system used for liquefied natural gas (LNG) storage tanks involves laying pipes around the outside of the tank in multiple layers. This not only requires a large number of pipes to be laid, but also makes it difficult to perform maintenance during the later stages of maintenance. Therefore, there is a need to improve the spray system for LNG storage tanks to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a spraying device for liquefied natural gas storage tanks to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a liquefied natural gas storage tank spraying device, including a base, a rotation and repositioning mechanism inside the base, and a spraying and cooling mechanism outside the base.

[0006] The rotating repositioning mechanism includes an annular rail disposed inside the base. A limit slider is slidably installed inside the annular rail. A slide plate is fixedly installed on the top of the limit slider. A protective box is fixedly installed on the top of the slide plate. A motor is fixedly installed inside the protective box. A gear is fixedly installed on the output end of the motor. A first drain hole is opened at the bottom of the base. A second drain hole is opened at the bottom of the annular rail. An internal gear ring is provided on the inner wall of the base. An installation rod is fixedly installed on the top of the slide plate, thereby allowing the spray pipe to rotate around the storage tank, thereby allowing the spray head to reposition and spray.

[0007] Preferably, the gear meshes with the internal gear ring, and the slide plate is slidably mounted on the top of the base and the annular rail, which facilitates the slide plate to be limited and slid on the top of the base.

[0008] Preferably, multiple first and second drain holes are provided, and they are arranged in a circular array around the center point of the base, so as to facilitate the drainage of water accumulated inside the base and the annular track through the first and second drain holes.

[0009] Preferably, a through hole is provided at the position corresponding to the output end of the motor on the slide plate, and the output end of the motor passes through the through hole to facilitate the motor to drive the gears through the slide plate to rotate.

[0010] Preferably, the spray cooling mechanism includes a support frame, which is fixedly installed on the top of the base. An installation ring is fixedly installed inside the support frame, and a water supply pipe is fixedly installed inside the installation ring. A water pump is fixedly installed on the top of the base, and a water pumping pipe is fixedly installed outside the water pump. A rotating joint is provided on the outside of the top end of the water supply pipe, and a spray pipe is provided on the outside of the rotating joint. A nozzle is fixedly installed on the outside of the spray pipe, and a fixing seat is fixedly installed on the outside of the mounting rod to facilitate the rotation of the spray pipe for water supply.

[0011] Preferably, the bottom of the water supply pipe is fixedly installed on the top of the water pump to facilitate the water pump supplying water to the water supply pipe.

[0012] Preferably, multiple fixing seats are provided, and the spray pipe is fixedly installed inside the fixing seat, which facilitates the fixing of the spray pipe on the mounting rod.

[0013] Compared with the prior art, the present invention provides a spraying device for liquefied natural gas storage tanks, which has the following beneficial effects:

[0014] 1. The liquefied natural gas storage tank spray device, through the set rotational switching mechanism, drives the spray pipe to rotate around the storage tank by the motor during use, so that a single spray pipe sprays the storage tank to cool it down. Therefore, during use, there is no need to lay a large number of pipelines and it will not obstruct the storage tank.

[0015] 2. The spray device for the liquefied natural gas storage tank, through the spray cooling mechanism, supplies water to the spray pipes via a water pump during use, and the spray pipes rotate on the water supply pipes via a rotating joint, thereby ensuring the water supply to the spray pipes. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the external structure of the base and connected mechanism of this utility model;

[0019] Figure 3 This is a cross-sectional view of the base and connected mechanism of this utility model;

[0020] Figure 4 This is an exploded cross-sectional view of the base and connected mechanism of this utility model.

[0021] Figure 5 This is a schematic diagram of the external structure of the spray cooling mechanism of this utility model.

[0022] In the diagram: 1. Base; 2. Rotary positioning mechanism; 21. Circular rail; 22. Slide plate; 23. Limiting slider; 24. Protective box; 25. Motor; 26. Gear; 27. First drain hole; 28. Second drain hole; 29. ​​Internal gear ring; 210. Mounting rod; 3. Spray cooling mechanism; 31. Support frame; 32. Mounting ring; 33. Water supply pipe; 34. Water pump; 35. Pumping pipe; 36. Rotary joint; 37. Spray pipe; 38. Spray head; 39. Fixed base. 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] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Example 1:

[0026] To enable the nozzle 38 to rotate and reposition around the storage tank, please refer to... Figure 1-4This utility model provides a technical solution: a spraying device for liquefied natural gas storage tank, including a base 1, a rotation and repositioning mechanism 2 inside the base 1, and a spraying and cooling mechanism 3 outside the base 1.

[0027] The rotary repositioning mechanism 2 includes an annular rail 21, which is located inside the base 1. A limit slider 23 is slidably installed inside the annular rail 21. A slide plate 22 is fixedly installed on the top of the limit slider 23. A protective box 24 is fixedly installed on the top of the slide plate 22. A motor 25 is fixedly installed inside the protective box 24. A gear 26 is fixedly installed at the output end of the motor 25. A first drain hole 27 is opened at the bottom of the base 1, and a second drain hole 28 is opened at the bottom of the annular rail 21. An internal gear ring 29 is provided on the inner wall of the base 1. An installation rod 210 is fixedly installed on the top of the slide plate 22, so that the spray pipe 37 can rotate around the storage tank, thereby allowing the nozzle 38 to perform repositioning spraying.

[0028] Furthermore, the gear 26 meshes with the internal gear ring 29, and the slide plate 22 is slidably mounted on the top of the base 1 and the annular rail 21, so that the slide plate 22 can be limited and slid on the top of the base 1.

[0029] Furthermore, multiple first drain holes 27 and second drain holes 28 are provided, and they are arranged in a circular array around the center point of the base 1, so as to facilitate the drainage of water accumulated inside the base 1 and the annular rail 21 through the first drain holes 27 and second drain holes 28.

[0030] Furthermore, a through hole is provided at the corresponding position of the output end of the slide plate 22 and the motor 25, and the output end of the motor 25 passes through the through hole, so that the motor 25 can pass through the slide plate 22 to drive the gear 26 to rotate.

[0031] Example 2:

[0032] To enable the spray pipe 37 to rotate and supply water, this utility model provides another embodiment. Please refer to [link / reference needed]. Figure 5 Furthermore, in conjunction with Embodiment 1, the spray cooling mechanism 3 includes a support frame 31, which is fixedly installed on the top of the base 1. An installation ring 32 is fixedly installed inside the support frame 31, and a water supply pipe 33 is fixedly installed inside the installation ring 32. A water pump 34 is fixedly installed on the top of the base 1, and a water pump pipe 35 is fixedly installed outside the water pump 34. A rotating joint 36 is provided on the outside of the top end of the water supply pipe 33, and a spray pipe 37 is provided on the outside of the rotating joint 36. A nozzle 38 is fixedly installed on the outside of the spray pipe 37, and a fixing seat 39 is fixedly installed on the outside of the mounting rod 210 to facilitate the rotation of the spray pipe 37 for water supply.

[0033] Furthermore, the bottom of the water supply pipe 33 is fixedly installed on the top of the water pump 34, so that the water pump 34 can supply water to the water supply pipe 33.

[0034] Furthermore, multiple fixing bases 39 are provided, and the spray pipe 37 is fixedly installed inside the fixing base 39, which facilitates the fixing of the spray pipe 37 onto the mounting rod 210.

[0035] In actual operation, when this device is used, the water pump 34 is started, causing the water pumping pipe 35 to pump water into the water supply pipe 33. The water supply pipe 33 then sends water into the spray pipe 37 through the rotating joint 36. The spray nozzles 38 on the spray pipe 37 spray water onto the storage tank. At the same time, the motor 25 drives the gear 26 to rotate, causing the gear 26 to slide on the base 1 through the meshing internal gear ring 29. The limiting slider 23 slides inside the annular rail 21, causing the sliding plate 22 to drive the mounting rod 210 to rotate around the storage tank. The mounting rod 210 then drives the spray pipe 37 to rotate around the storage tank, and the rotating joint 36 causes the spray pipe 37 to rotate on the water supply pipe 33.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A spray device for a liquefied natural gas storage tank comprising a base (1), characterised in that: The inside of the base (1) is provided with a rotating displacement mechanism (2), and the outside of the base (1) is provided with a spray cooling mechanism (3). The rotating displacement mechanism (2) comprises an annular track (21), the annular track (21) is arranged in the inside of the base (1), the inside of the annular track (21) is slidably installed with a limiting slider (23), the top of the limiting slider (23) is fixedly installed with a sliding plate (22), the top of the sliding plate (22) is fixedly installed with a protection box (24), the inside of the protection box (24) is fixedly installed with a motor (25), the output end of the motor (25) is fixedly installed with a gear (26), the bottom of the base (1) is provided with a first drain hole (27), the bottom of the annular track (21) is provided with a second drain hole (28), the inner wall of the base (1) is provided with an internal gear ring (29), and the top of the sliding plate (22) is fixedly installed with a mounting rod (210).

2. A spray device for a liquefied natural gas storage tank as claimed in claim 1, wherein: The gear (26) is engaged with the internal gear ring (29), and the sliding plate (22) is slidably installed on the top of the base (1) and the annular track (21).

3. A spray device for a liquefied natural gas storage tank as defined in claim 1, wherein: The first drain hole (27) and the second drain hole (28) are respectively provided with a plurality of circular array distribution center points.

4. The spray device for a liquefied natural gas storage tank according to claim 1, characterized by: The sliding plate (22) is provided with a through hole at the corresponding position of the output end of the motor (25), and the output end of the motor (25) penetrates through the through hole.

5. A spray device for a liquefied natural gas storage tank as defined in claim 1, wherein: The spray cooling mechanism (3) comprises a support frame (31), the support frame (31) is fixedly installed on the top of the base (1), the inside of the support frame (31) is fixedly installed with a mounting ring (32), the inside of the mounting ring (32) is fixedly installed with a water supply pipe (33), the top of the base (1) is fixedly installed with a water pump (34), the outside of the water pump (34) is fixedly installed with a water suction pipe (35), the top end of the water supply pipe (33) is provided with a rotating joint (36), the outside of the rotating joint (36) is provided with a spray pipe (37), the outside of the spray pipe (37) is fixedly installed with a spray head (38), and the outside of the mounting rod (210) is fixedly installed with a fixed seat (39).

6. A spray device for a liquefied natural gas storage tank as claimed in claim 5, wherein: The bottom of the water supply pipe (33) is fixedly installed on the top of the water pump (34).

7. A spray device for a liquefied natural gas storage tank as claimed in claim 5, wherein: The fixed seat (39) is provided with a plurality of fixed seats (39), and the spray pipe (37) is fixedly installed in the inside of the fixed seat (39).

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