Small cooling and spraying cooling device of auxiliary pipeline for liquid ammonia storage tank

Abstract

The invention discloses a small cooling and spraying cooling device for an auxiliary pipeline of a liquid ammonia storage tank, and relates to the technical field of liquid ammonia storage tanks, the small cooling and spraying cooling device comprises the liquid ammonia storage tank, a movable spraying assembly is installed above the liquid ammonia storage tank, the movable spraying assembly comprises an arc-shaped guide rail, a plurality of sets of movable spraying tables distributed at intervals are installed above the arc-shaped guide rail, and the movable spraying tables are arranged on the arc-shaped guide rail. Lifting adjusting assemblies used for driving the movable spraying assembly to ascend and descend are installed on the two sides of the lower portion of the movable spraying assembly, a wetting assembly is installed below the movable spraying assembly, and each lifting adjusting assembly comprises two supporting frames which are symmetrically installed left and right. The spray cooling device solves the problems that when an existing spray cooling device for the storage tank is used, the spray position of the spray cooling device is concentrated on the top, other positions of the tank body cannot be sprayed, cooling is conducted completely depending on sliding of water flow on the surface of the tank body, the spray cooling efficiency is low, the cooling effect is poor, and the spray device is prone to causing water splashing. And the water resource consumption is high.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid ammonia storage tanks, and in particular to a small cooling spray cooling device for auxiliary pipelines of liquid ammonia storage tanks. Background Technique

[0002] Liquid ammonia is a colorless liquid with a strong pungent odor. As an important chemical raw material, for the convenience of transportation and storage, gaseous ammonia is usually pressurized or cooled to obtain liquid ammonia. A liquid ammonia storage tank is a container for storing liquefied ammonia gas. During the production operation process, the change in the temperature of the storage tank will affect the pressure and stability of the liquid ammonia in the tank. Therefore, when the temperature of the liquid ammonia storage tank reaches a certain standard, spray cooling is required.

[0003] Publication No.: CN211309606U, named "Petrochemical Storage Tank Fire Water Spray Cooling Device", includes a base. This petrochemical storage tank fire water spray cooling device drives the rotating plate to rotate through the setting of a motor. The rotating rod at the bottom of the rotating plate also drives the ball to rotate in the annular groove, playing a role in guiding and assisting the support of the rotating plate. The middle transfer water tank at the top of the rotating plate is responsible for receiving the cooling water flowing in from the main water pipe. The middle transfer water tank also rotates with the rotating plate. The branch water pipes on both sides of the middle transfer water tank rotate around the outside of the petrochemical storage tank body driven by the middle transfer water tank. The nozzles on the branch water pipes spray water to the outside of the petrochemical storage tank body during the rotation process, enabling the periphery of the petrochemical storage tank body to be evenly spray-cooled.

[0004] When the above-mentioned existing storage tank spray cooling device is in use, its spray position is concentrated on the top, and it cannot spray other positions of the tank body. It completely relies on the water flow to slide on the surface of the tank body for cooling, resulting in a relatively low spray cooling efficiency, poor cooling effect, and this spray device is also prone to water splashing problems and high water resource consumption. Therefore, it does not meet the existing requirements, and for this reason, a small cooling spray cooling device for auxiliary pipelines of liquid ammonia storage tanks is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a small cooling spray cooling device for auxiliary pipelines of liquid ammonia storage tanks to solve the problems in the above-mentioned background technique that when the existing storage tank spray cooling device is in use, its spray position is concentrated on the top, it cannot spray other positions of the tank body, it completely relies on the water flow to slide on the surface of the tank body for cooling, resulting in a relatively low spray cooling efficiency, poor cooling effect, and this spray device is also prone to water splashing problems and high water resource consumption.

[0006] To achieve the above object, the present invention provides the following technical solution: a small cooling spray cooling device for an accessory pipeline of a liquid ammonia storage tank, comprising: a liquid ammonia storage tank, a mobile spray assembly is installed above the liquid ammonia storage tank, the mobile spray assembly includes an arc-shaped guide rail, a plurality of spaced mobile spray platforms are installed above the arc-shaped guide rail, lifting adjustment assemblies for driving its lifting displacement are installed on both sides below the mobile spray assembly, and a wetting assembly is installed below the mobile spray assembly.

[0007] Preferably, the lifting adjustment assembly includes two sets of support frames symmetrically installed on the left and right. A ball screw and a guide rod are respectively installed inside the two support frames. A screw motor is installed at the end of the ball screw. Sliders are installed on the outer walls of the ball screw and the guide rod.

[0008] Preferably, the front end of the slider is installed with an assembly combination frame, the assembly combination frame is arc-shaped, a lifting platform is installed above the assembly combination frame through bolts, and a through hole is opened at the middle position of the lifting platform.

[0009] Preferably, a guide rail tooth track is provided on the outer side wall of the arc-shaped guide rail. A gear meshing with the guide rail tooth track is installed on one side of the bottom of the mobile spray platform. A stepping motor for driving its rotation is installed above the gear. A mobile power source is installed on one side of the stepping motor. A mobile wheel is installed on the other side of the bottom of the mobile spray platform, and the mobile wheel moves on the inner edge of the arc-shaped guide rail.

[0010] Preferably, a water storage tank is installed at the front end of the mobile power source. The water storage tank is connected to a pump body through a pipeline at the lower part. An accessory pipe is installed at the water outlet end of the pump body. A spray head is installed at one end of the accessory pipe, and the spray head is located inside the through hole.

[0011] Preferably, a pipe rack for limiting and fixing the accessory pipe is installed on the front end face of the mobile spray platform through bolts.

[0012] Preferably, a water receiving tank is arranged below the liquid ammonia storage tank, and a drain pipe is installed at the front end of the water receiving tank.

[0013] Preferably, the wetting assembly includes a splash-proof water baffle. The splash-proof water baffle is installed at the front and rear ends of the assembly combination frame. A rotating shaft frame is installed on the outer wall of the splash-proof water baffle. A damping rotating shaft is installed at the middle position of the rotating shaft frame, and a rotating handle is installed at the end of the damping rotating shaft.

[0014] Preferably, an outer telescopic tube is installed on the outer wall of the damping rotating shaft, an inner telescopic tube is installed inside the outer telescopic tube, positioning screw holes are formed on the outer walls of the inner telescopic tube and the outer telescopic tube, the positioning screw holes at the inner telescopic tube are arranged horizontally at intervals, and the outer telescopic tube and the inner telescopic tube are combined by positioning bolts.

[0015] Preferably, an arc-shaped bracket is installed at the front end of the inner telescopic tube, and an arc-shaped water-absorbing sponge block is arranged on the outer wall of the arc-shaped bracket.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] (1) In the present invention, through the setting of the lead screw motor, ball screw, and guide rod, the slider is driven to perform a linear lifting displacement operation. During the lifting displacement process, the lifting platform is driven to move, so that the moving spray assembly located on the lifting platform can be lifted, and the spray height is adjusted by lifting, which is convenient for performing spray cooling operations on different tank body height positions of the vertical liquid ammonia storage tank, improving its spray area, and at the same time improving the cooling efficiency. It solves the problem that when the existing tank spray cooling device is in use, its spray position is concentrated on the top, and it is impossible to spray other positions of the tank body, and it completely depends on the water flow sliding on the tank body surface for cooling, resulting in low spray efficiency and poor cooling effect.

[0018] (2) In the present invention, the stepping motor is used to drive the gear to rotate on the guide rail tooth track. During the rotation process, the moving wheel on the other side moves along the inner edge of the arc-shaped guide rail, so that the moving spray platform can be driven to perform a circular movement. During the movement, the water body in the water storage tank is transported to the spray head by the pump body to perform spray cooling operations on different surfaces of the liquid ammonia storage tank body, effectively improving the spray cooling efficiency and area. The setting of multiple groups of moving spray platforms can further improve the spray efficiency, and the arc shape of the arc-shaped guide rail can effectively fit the tank body structure such as the vertical liquid ammonia storage tank to ensure that different surfaces of the tank body can be spray-cooled.

[0019] (3) In the present invention, the splash-proof baffle is of an arc-shaped structure. When the upper moving spray platform performs spraying, this structure can block the splashing water body, so that the sprayed water is not easily splashed to the outside due to the influence of the acting force. In addition, the splash-proof baffle is installed below the moving spray platform, and it can move along with the lifting of the moving spray platform, so that the whole process of the lifting spray operation can perform splash-proof shielding operations. The water body after splash-proof is more easily collected by the water receiving tank below, thereby improving the collection effect.

[0020] (4) In the present invention, an arc-shaped bracket and an arc-shaped water-absorbing sponge block are also installed at the position of the splash-proof baffle. During spraying, the movable spraying platform performs spraying above. After spraying, the water body slides down on the tank body to the position of the water-absorbing sponge block, and the falling water body is adsorbed by the water-absorbing sponge block. This structure is an arc-shaped structure, which is assembled and fixed with the arc-shaped bracket. Two arc-shaped brackets form an arc-shaped frame, and the tank body is located between the arc-shaped frames. During the lifting and displacement, the water-absorbing sponge block follows the movement to wet the surface of the tank body structure, ensuring more uniform cooling of the tank body and improving the cooling effect. Through the arrangement of the inner telescopic tube and the outer telescopic tube, the position of the arc-shaped bracket can be adjusted according to different tank body specifications, enabling the water-absorbing sponge block to be closer to the surface of the tank body. Specifically, the inner telescopic tube can be pulled out from the outer telescopic tube. After pulling out the inner telescopic tube to the required length, align the positions of the positioning screw holes of the two, and then install the positioning bolts for fixation, so that the inner telescopic tube is restricted at this length, which is convenient for user operation and adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is a schematic diagram of the structure of the lifting and adjusting assembly of the present invention;

[0023] Figure 3 is a schematic diagram of the structure of the lifting and adjusting assembly of the present invention from another perspective;

[0024] Figure 4 is a schematic diagram of the structure of the movable spraying assembly of the present invention;

[0025] Figure 5 is a schematic diagram of the structure of the movable spraying platform of the present invention;

[0026] Figure 6 is a schematic diagram of the assembly structure of the assembly combination frame and the wetting assembly of the present invention;

[0027] Figure 7 is a schematic diagram of the structure of the movable wetting assembly of the present invention;

[0028] In the figure: 1. Lifting and adjusting component; 101. Support frame; 102. Ball screw; 103. Screw motor; 104. Guide rod; 105. Slide block; 106. Assembly combination frame; 107. Lifting platform; 108. Through hole; 2. Liquid ammonia storage tank; 3. Mobile spraying component; 301. Arc-shaped guide rail; 302. Guide rail tooth track; 303. Mobile spraying platform; 304. Gear; 305. Stepper motor; 306. Water storage tank; 307. Pump body; 308. Mobile power source; 309. Pipe rack; 310. Auxiliary pipe; 311. Spraying head; 312. Mobile wheel; 4. Water receiving tank; 401. Drain pipe; 5. Wetting component; 501. Splash-proof baffle; 502. Damping rotating shaft; 503. Rotating handle; 504. Outer telescopic pipe; 505. Inner telescopic pipe; 506. Positioning screw hole; 507. Positioning bolt; 508. Arc-shaped support; 509. Water-absorbing sponge block; 510. Rotating shaft frame. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0030] Please refer to Figure 1 , Figure 2 , Figure 3 , an embodiment provided by the present invention: a small cooling spray cooling device for an auxiliary pipeline of a liquid ammonia storage tank, including: a liquid ammonia storage tank 2, a mobile spraying component 3 is installed above the liquid ammonia storage tank 2, the mobile spraying component 3 includes an arc-shaped guide rail 301, a plurality of groups of mobile spraying platforms 303 distributed at intervals are installed above the arc-shaped guide rail 301, lifting and adjusting components 1 for driving its lifting displacement are installed on both sides below the mobile spraying component 3, a wetting component 5 is installed below the mobile spraying component 3, the lifting and adjusting component 1 includes two groups of support frames 101 symmetrically installed on the left and right, a ball screw 102 and a guide rod 104 are respectively installed inside the two groups of support frames 101, a screw motor 103 is installed at the end of the ball screw 102, slide blocks 105 are installed on the outer walls of the ball screw 102 and the guide rod 104, an assembly combination frame 106 is installed at the front end of the slide block 105, the assembly combination frame 106 is arc-shaped, a lifting platform 107 is installed above the assembly combination frame 106 through bolts, and a through hole 108 is opened at the middle position of the lifting platform 107; through the settings of the screw motor 103, the ball screw 102, and the guide rod 104, the slide block 105 is driven to perform a linear lifting displacement operation. During its lifting displacement process, the lifting platform 107 is driven to move, so that the mobile spraying component 3 located on the lifting platform 107 can be driven to lift, and the spraying height is adjusted by lifting, which is convenient for spraying and cooling different tank body height positions of the vertical liquid ammonia storage tank 2, improving its spraying area and at the same time improving the cooling efficiency.

[0031] Please refer to Figure 4 、 Figure 5 On the outer side wall of the arc-shaped guide rail 301, a guide rail tooth track 302 is provided. On one side of the lower bottom of the moving spray table 303, a gear 304 meshing with the guide rail tooth track 302 is installed. Above the gear 304, a stepping motor 305 for driving its rotation is installed. On one side of the stepping motor 305, a mobile power source 308 is installed. On the other side of the lower bottom of the moving spray table 303, a moving wheel 312 is installed. The moving wheel 312 moves along the inner edge of the arc-shaped guide rail 301. At the front end of the mobile power source 308, a water storage tank 306 is installed. Below the water storage tank 306, a pump body 307 is connected through a pipeline. At the water outlet end of the pump body 307, an accessory pipe 310 is installed. At one end of the accessory pipe 310, a spray head 311 is installed. The spray head 311 is located within the through hole 108; the stepping motor 305 is used to drive the gear 304 to rotate on the guide rail tooth track 302. During the rotation process, the moving wheel 312 on the other side moves along the inner edge of the arc-shaped guide rail 301, thereby driving the moving spray table 303 to perform circular movement. During the movement, the pump body 307 transports the water in the water storage tank 306 to the spray head 311 to perform spray cooling operation on different surfaces of the tank body of the liquid ammonia storage tank 2, effectively improving the efficiency and area of spray cooling. The setting of multiple groups of moving spray tables 303 can further improve the spray efficiency. The arc shape of the arc-shaped guide rail 301 can effectively fit the tank body structure such as the vertical liquid ammonia storage tank 2, ensuring that different surfaces of the tank body can be spray-cooled.

[0032] The stepping motor 305 and the pump body 307 mentioned above are both electrically connected to the mobile power source 308, and their control devices and control methods are conventional known devices in this field.

[0033] Furthermore, as Figure 5 shown, on the front end face of the moving spray table 303, a pipe rack 309 for limiting and fixing the accessory pipe 310 is installed through bolts. The pipe rack 309 is used to fix and limit the accessory pipe 310, improving the stability and firmness of its pipeline.

[0034] Please refer to Figure 1 Below the liquid ammonia storage tank 2, a water receiving tank 4 is provided. At the front end of the water receiving tank 4, a drain pipe 401 is installed; the water receiving tank 4 is of a cylindrical structure, and a cavity for receiving the sprayed water is opened in the middle, which is used to achieve the effect of centralized collection, facilitating the user to transport it to other equipment for treatment through the drain pipe 401 subsequently.

[0035] Please refer to Figure 1 、 Figure 6 、 Figure 7, the wetting component 5 includes a splash-proof baffle 501, which is installed at the front and rear ends of the assembly frame 106. A rotating shaft frame 510 is installed on the outer wall of the splash-proof baffle 501. A damping rotating shaft 502 is installed at the middle position of the rotating shaft frame 510. A rotating handle 503 is installed at the end of the damping rotating shaft 502. An outer telescopic tube 504 is installed on the outer wall of the damping rotating shaft 502. An inner telescopic tube 505 is installed inside the outer telescopic tube 504. Positioning screw holes 506 are provided on the outer walls of both the inner telescopic tube 505 and the outer telescopic tube 504. The positioning screw holes 506 at the inner telescopic tube 505 are arranged horizontally at intervals. The outer telescopic tube 504 and the inner telescopic tube 505 are combined by a positioning bolt 507. An arc-shaped bracket 508 is installed at the front end of the inner telescopic tube 505. An arc-shaped water-absorbing sponge block 509 is provided on the outer wall of the arc-shaped bracket 508.

[0036] The splash-proof baffle 501 is of an arc-shaped structure. When the moving spray table 303 moves upward for spraying, this structure can block the splashing water, making it difficult for the sprayed water to splash to the outside due to the influence of the acting force. In addition, the splash-proof baffle 501 is installed below the moving spray table 303 and can move up and down with the moving spray table 303, enabling anti-splash shielding operations throughout the entire process of the lifting and spraying operation. The water after anti-splash is more easily collected by the water receiving tank 4 below, thereby improving the collection effect; at the position of the splash-proof baffle 501, there is also an arc-shaped bracket 508 and an arc-shaped water-absorbing sponge block 509 installed. During spraying, the moving spray table 303 sprays upward. After spraying, the water slides down on the tank body to the position of the water-absorbing sponge block 509, and the falling water will be adsorbed by the water-absorbing sponge block 509. This structure is of an arc shape and is assembled and fixed with the arc-shaped bracket 508. The two arc-shaped brackets 508 form a circular arc-shaped frame, with the tank body located between this circular arc-shaped frame. During the lifting and displacement, the water-absorbing sponge block 509 moves along with it to wet the entire surface of the tank body structure, ensuring more uniform cooling of the tank body and improving the cooling effect; through the setting of the inner telescopic tube 505 and the outer telescopic tube 504, the position of the arc-shaped bracket 508 can be adjusted according to different tank specifications, enabling the water-absorbing sponge block 509 to fit more closely to the surface of the tank body. Specifically, the inner telescopic tube 505 can be pulled out from the outer telescopic tube 504. After pulling out the inner telescopic tube 505 to the required length, align the positions of the positioning screw holes 506 of the two, and then install the positioning bolt 507 for fixation, restricting the inner telescopic tube 505 at this length, which is convenient for user operation and adjustment; at this position, the rotating handle 503 can also be used to drive the damping rotating shaft 502 to rotate, and the placement angle of the above components can be adjusted by rotation.

[0037] Among them, the above-mentioned lifting and adjusting component 1, moving spraying component 3, and wetting component 5 are made of cast aluminum alloy or explosion-proof board. Cast aluminum alloy has the characteristics of high strength, corrosion resistance, light weight, and explosion protection. The explosion-proof board is composed of fiber cement and galvanized steel plate, and has the characteristics of light weight, high strength, fire protection, and explosion resistance, meeting the requirements of explosion-proof environment.

[0038] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. Small cooling spray and temperature reduction device for auxiliary pipelines of liquid ammonia storage tanks, including a liquid ammonia storage tank (2), characterized in that: A mobile spraying assembly (3) is installed above the liquid ammonia storage tank (2). The mobile spraying assembly (3) includes an arc-shaped guide rail (301). Above the arc-shaped guide rail (301), a plurality of spaced-apart mobile spraying platforms (303) are installed. On both sides below the mobile spraying assembly (3), a lifting and adjusting assembly (1) for driving its lifting and displacement is installed. A wetting assembly (5) is installed below the mobile spraying assembly (3).

2. The small cooling spray cooling device for the auxiliary pipeline of the liquid ammonia storage tank according to claim 1, characterized in that: The lifting and adjusting assembly (1) includes two sets of support frames (101) symmetrically installed on the left and right. Inside the two sets of support frames (101), a ball screw (102) and a guide rod (104) are respectively installed. At the end of the ball screw (102), a screw motor (103) is installed. Sliders (105) are installed on the outer walls of the ball screw (102) and the guide rod (104).

3. The small cooling spray cooling device for the auxiliary pipeline of the liquid ammonia storage tank according to claim 2, wherein: At the front end of the slider (105), an assembly combination frame (106) is installed. The assembly combination frame (106) is arc-shaped. Above the assembly combination frame (106), a lifting platform (107) is installed by bolts. A through hole (108) is opened at the middle position of the lifting platform (107).

4. The small cooling spray cooling device for the auxiliary pipeline of the liquid ammonia storage tank according to claim 3, wherein: A guide rail tooth track (302) is provided on the outer side wall of the arc-shaped guide rail (301). On one side of the lower bottom of the mobile spraying platform (303), a gear (304) meshing with the guide rail tooth track (302) is installed. Above the gear (304), a stepping motor (305) for driving its rotation is installed. On one side of the stepping motor (305), a mobile power source (308) is installed. On the other side of the lower bottom of the mobile spraying platform (303), a mobile wheel (312) is installed. The mobile wheel (312) moves along the inner edge of the arc-shaped guide rail (301).

5. The small cooling spray cooling device for the auxiliary pipeline of the liquid ammonia storage tank according to claim 4, characterized in that: At the front end of the mobile power source (308), a water storage tank (306) is installed. Below the water storage tank (306), a pump body (307) is connected through a pipeline. At the water outlet end of the pump body (307), an accessory pipe (310) is installed. One end of the accessory pipe (310) is installed with a spray head (311). The spray head (311) is located in the through hole (108).

6. The small cooling spray and temperature reduction device for the auxiliary pipeline of the liquid ammonia storage tank according to claim 5, wherein: On the front end face of the mobile spraying platform (303), a pipe rack (309) for limiting and fixing the accessory pipe (310) is installed by bolts.

7. The small cooling spray cooling device for the auxiliary pipeline of the liquid ammonia storage tank according to claim 1, wherein: A water receiving tank (4) is provided below the liquid ammonia storage tank (2). A drain pipe (401) is installed at the front end of the water receiving tank (4).

8. The small cooling spray cooling device for the auxiliary pipeline of the liquid ammonia storage tank according to claim 1, wherein: The wetting assembly (5) includes a splash-proof baffle (501). The splash-proof baffle (501) is installed at the front and rear ends of the assembly combination frame (106). On the outer wall of the splash-proof baffle (501), a rotating shaft frame (510) is installed. At the middle position of the rotating shaft frame (510), a damping rotating shaft (502) is installed. At the end of the damping rotating shaft (502), a rotating handle (503) is installed.

9. The small cooling spray cooling device for the auxiliary pipeline of the liquid ammonia storage tank according to claim 8, characterized in that: An outer telescopic tube (504) is installed on the outer wall of the damping rotating shaft (502). An inner telescopic tube (505) is installed inside the outer telescopic tube (504). Positioning screw holes (506) are formed on the outer walls of both the inner telescopic tube (505) and the outer telescopic tube (504). The positioning screw holes (506) at the inner telescopic tube (505) are arranged horizontally at intervals. The outer telescopic tube (504) and the inner telescopic tube (505) are combined by positioning bolts (507).

10. The small cooling spray temperature reduction device for the accessory pipeline of the liquid ammonia storage tank according to claim 9, wherein: An arc-shaped bracket (508) is installed at the front end of the inner telescopic tube (505). An arc-shaped water-absorbing sponge block (509) is arranged on the outer wall of the arc-shaped bracket (508).

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