BOG cold energy recovery device

Abstract

The utility model discloses a BOG cold energy recovery device, which relates to the technical field of cold energy recovery and comprises a box body, a double-head motor is fixedly arranged on the front side of the box body, front boxes are fixedly arranged on the two sides of the double-head motor, side boxes are fixedly arranged on the two sides of the box body, a pair of vertical boxes are fixedly arranged on the two sides of the box body, and first round rods are rotatably arranged in the front boxes. The first round rods are fixedly connected with the output end of the double-end motor, and first bevel gears are fixedly arranged on the first round rods. Through cooperative use of the box body, the partition plate, the ice mold, the communicating pipe, the vaporizer, the water injection pipe, the sealing plate, the square hole and the sealing ring, when natural gas is converted from liquefaction to gasification, generated cold energy reduces the temperature in the box body, water in the ice mold is frozen into ice blocks through heat transfer, and through cooperative use of the electric heating ring and the heat preservation sleeve, the natural gas is heated to be gasified. After ice making is completed, the surface is slightly melted, ice blocks can be rapidly demolded, and the heat preservation sleeve prevents water in the water injection pipe from being frozen.

Description

Technical Field

[0001] The utility model relates to the field of cold energy recovery, in particular to a BOG cold energy recovery device. Background Technique

[0002] BOG refers to the evaporation gas generated during the storage, transportation and processing of liquefied natural gas (LNG). The mass of liquefied natural gas is only about 45% of that of water with the same volume. Its manufacturing process is to first purify the natural gas produced in the gas field, and after a series of ultra-low temperature liquefaction, it is transported by a liquefied natural gas ship; since there is a great deal of cold energy in liquefied natural gas, it can play an important role in the current social production and life. Due to the relatively tight global energy reserves, with the continuous increase in LNG sales, the reasonable use of LNG cold energy is particularly important.

[0003] The current ice-making equipment is generally driven by electric energy and mechanical energy, and the consumption of electric energy is extremely large. Therefore, how to reasonably utilize the cold energy generated when liquefied natural gas is gasified is what we need to consider. Moreover, due to the very low temperature inside the box body, it is rather troublesome to de-ice after ice-making, and the pipeline is prone to freezing when adding water. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose a BOG cold energy recovery device.

[0005] In order to solve the problems existing in the prior art, the utility model adopts the following technical scheme:

[0006] A BOG cold energy recovery device includes a box body. A double-headed motor is fixedly arranged on the front side of the box body. Front boxes are fixedly arranged on both sides of the double-headed motor. Side boxes are fixedly arranged on both sides of the box body. A pair of vertical boxes are fixedly arranged on both sides of the box body. First round rods are rotatably arranged in the front boxes, and the first round rods are fixedly connected to the output ends of the double-headed motor. First bevel gears are fixedly arranged on the first round rods. Second round rods are rotatably arranged in the side boxes, and second bevel gears are fixedly arranged at one ends of the second round rods. The first bevel gears are meshed with the second bevel gears. A pair of third bevel gears are fixedly arranged on the second round rods. Threaded rods are rotatably arranged in the vertical boxes, and fourth bevel gears are fixedly arranged at the tops of the threaded rods. The third bevel gears are meshed with the fourth bevel gears. Sliders are slidably arranged in the vertical boxes. A partition board is fixedly arranged in the box body. A plurality of ice molds are fixedly arranged on the partition board. A communication pipe is fixedly arranged in the box body, and a vaporizer is fixedly arranged in the middle of the communication pipe. Water injection pipes are fixedly arranged on the ice molds. A sealing plate is arranged at the bottom of the box body, and the sealing plate is fixedly connected to the slider. A plurality of square holes are opened on the partition board, and a plurality of sealing rings are fixedly arranged at the bottom of the partition board.

[0007] Preferably, a plurality of electric heating rings are fixedly arranged in the ice molds, and a heat preservation sleeve is fixedly arranged on the outer side of the water injection pipe.

[0008] Preferably, the water injection pipes penetrate through the box body, the sliders penetrate through the vertical box, each pair of the threaded rods is arranged in mirror symmetry, and the threaded rods penetrate through the side box and the vertical box.

[0009] Preferably, the second round rods penetrate through the front box and the side box, and the first round rods penetrate through the front box.

[0010] Preferably, a plurality of supporting legs are fixedly arranged at the four corners of the bottom of the box body, and the communicating pipe penetrates through the box body.

[0011] Preferably, the number and positions of the sealing rings correspond to those of the square holes, and a plurality of the ice molds are distributed in a rectangular whole column.

[0012] Preferably, the ice molds are respectively located directly above the square holes, and the box body is in a cuboid shape with an open bottom.

[0013] Preferably, the heat preservation sleeve is located between the ice mold and the top of the box body, the water injection pipes penetrate through the heat preservation sleeve, and the heat preservation sleeves are all located at the center of the top of the ice molds.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. In the present utility model, through the combined use of the box body, the partition board, the ice mold, the communicating pipe, the vaporizer, the water injection pipe, the sealing plate, the square hole and the sealing ring, when natural gas is converted from liquefaction to gasification, the internal energy generated reduces the temperature in the box body, and the water in the ice mold is frozen into ice cubes through heat transfer. It can not only recover and utilize the cold energy, but also the made ice cubes can be used and sold;

[0016] 2. In the present utility model, through the combined use of the electric heating ring and the heat preservation sleeve, after the ice making is completed, the surface is slightly melted to enable the ice cubes to be quickly demolded, and the heat preservation sleeve prevents the water in the water injection pipe from freezing, reducing the influence on the use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present utility model, form a part of this application, and the illustrative embodiments and descriptions of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0018] Figure 1 is the front view structural schematic diagram of the present utility model;

[0019] Figure 2 is the front box sectional view structural schematic diagram of the present utility model;

[0020] Figure 3Schematic cross-sectional structure diagram of the box body of the present utility model;

[0021] Figure 4 Schematic cross-sectional structure diagram of the ice mold of the present utility model;

[0022] Reference numerals in the figure: 1. Box body; 11. Double-headed motor; 12. Front box; 13. Side box; 14. Vertical box; 15. First round rod; 16. First bevel gear; 17. Second round rod; 18. Second bevel gear; 19. Third bevel gear; 111. Threaded rod; 112. Fourth bevel gear; 113. Slide block; 114. Partition board; 115. Ice mold; 116. Connecting pipe; 117. Vaporizer; 118. Water injection pipe; 119. Sealing plate; 120. Square hole; 121. Sealing ring; 2. Electric heating ring; 21. Heat preservation sleeve. Specific implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0024] Embodiment 1: This embodiment provides a BOG cold energy recovery device. Refer to Figures 1-4 , specifically, it includes a box body 1. A double-headed motor 11 is fixedly provided on the front side of the box body 1. Front boxes 12 are fixedly provided on both sides of the double-headed motor 11. Side boxes 13 are fixedly provided on both sides of the box body 1. A pair of vertical boxes 14 are fixedly provided on both sides of the box body 1. First round rods 15 are rotatably provided in the front boxes 12. The first round rods 15 are fixedly connected to the output ends of the double-headed motor 11. First bevel gears 16 are fixedly provided on the first round rods 15. Second round rods 17 are rotatably provided in the side boxes 13. Second bevel gears 18 are fixedly provided at one ends of the second round rods 17. The first bevel gears 16 are meshed with the second bevel gears 18. A pair of third bevel gears 19 are fixedly provided on the second round rods 17. Threaded rods 111 are rotatably provided in the vertical boxes 14. Fourth bevel gears 112 are fixedly provided at the tops of the threaded rods 111. The third bevel gears 19 are meshed with the fourth bevel gears 112. Slide blocks 113 are slidably provided in the vertical boxes 14. A partition board 114 is fixedly provided in the box body 1. A plurality of ice molds 115 are fixedly provided on the partition board 114. A connecting pipe 116 is fixedly provided in the box body 1. A vaporizer 117 is fixedly provided in the middle of the connecting pipe 116. Water injection pipes 118 are fixedly provided on the ice molds 115. A sealing plate 119 is provided at the bottom of the box body 1. The sealing plates 119 are fixedly connected to the slide blocks 113. A plurality of square holes 120 are opened on the partition board 114. A plurality of sealing rings 121 are fixedly provided at the bottom of the partition board 114.

[0025] The water injection pipes 118 all penetrate through the box body 1, the sliding blocks 113 all penetrate through the vertical box 14, each pair of threaded rods 111 are arranged in mirror symmetry, the threaded rods 111 all penetrate through the side box 13 and the vertical box 14, the second round rods 17 all penetrate through the front box 12 and the side box 13, the first round rods 15 all penetrate through the front box 12, multiple support legs are fixedly arranged at the four corners of the bottom of the box body 1, the connecting pipe 116 penetrates through the box body 1, the number and positions of the sealing rings 121 correspond to those of the square holes 120, multiple ice molds 115 are arranged in a rectangular array, the ice molds 115 are respectively located directly above the square holes 120, and the box body 1 is a cuboid with an open bottom.

[0026] In the specific implementation process, as Figure 2 and Figure 3 shown, the double-headed motor 11 drives the first round rod 15 to rotate, the first round rod 15 drives the first bevel gear 16 to rotate, the first bevel gear 16 drives the second round rod 17 to rotate through the second bevel gear 18, the second round rod 17 drives the third bevel gear 19 to rotate, the third bevel gear 19 drives the threaded rod 111 to rotate through the fourth bevel gear 112, the threaded rod 111 drives the sealing plate 119 to move upward through the sliding block 113, so that the sealing plate 119 fits against the bottom of the partition plate 114, the ice mold 115 is sealed through the sealing ring 121, an appropriate amount of water is injected into the ice mold 115 through the water injection pipe 118, the liquefied natural gas flows through the connecting pipe 116 to the vaporizer 117, and then forms gasification through the vaporizer 117, generating a large amount of cold energy. The cold energy accumulates in the box body 1, causing the temperature in the box body 1 to drop rapidly. The heat of the water in the ice mold 115 is absorbed through heat transfer, causing it to condense into ice cubes. The completed ice cubes are driven to descend together with the sealing plate 119. Through the coordinated use of the box body 1, the partition plate 114, the ice mold 115, the connecting pipe 116, the vaporizer 117, the water injection pipe 118, the sealing plate 119, the square hole 120 and the sealing ring 121, when the natural gas is converted from liquefied to gasified, the generated cold energy reduces the temperature in the box body 1, and the water in the ice mold 115 is frozen into ice cubes through heat transfer.

[0027] Embodiment 2: In Embodiment 1, there are still problems that it is relatively troublesome to deice after ice making is completed and the pipes are prone to freezing during water injection. Therefore, on the basis of Embodiment 1, this embodiment further includes:

[0028] Multiple electric heating rings 2 are fixedly arranged in each ice mold 115, a heat preservation sleeve 21 is fixedly arranged on the outer side of the water injection pipe 118, the heat preservation sleeve 21 is located between the ice mold 115 and the top of the box body 1, the water injection pipes 118 all penetrate through the heat preservation sleeve 21, and the heat preservation sleeves 21 are all located at the center of the top of the ice mold 115.

[0029] In the specific implementation process, as Figure 3 and Figure 4As shown, after completely solidifying into ice cubes, the point heating ring 2 heats the ice mold 115, causing the surface of the ice cubes to melt and creating a small gap between the mold, enabling rapid demolding. Through circulation, the collection and utilization of cold energy can be achieved. The heat preservation sleeve 21 wraps the water injection pipe 118 to prevent the water inside from freezing due to the supercooling inside the box body 1. By using the point heating ring 2 and the heat preservation sleeve 21 in combination, after ice making is completed, the surface slightly melts, enabling the ice cubes to be quickly demolded, and the heat preservation sleeve 21 prevents the water in the water injection pipe 118 from freezing.

[0030] Specifically, the working principle and operation method of the present utility model are as follows:

[0031] Step 1: Start the double-headed motor 11. The double-headed motor 11 drives the first round rod 15 to rotate. The first round rod 15 drives the first bevel gear 16 to rotate. The first bevel gear 16 drives the second round rod 17 to rotate through the second bevel gear 18. The second round rod 17 drives the third bevel gear 19 to rotate. The third bevel gear 19 drives the threaded rod 111 to rotate through the fourth bevel gear 112. The threaded rod 111 drives the sealing plate 119 to move upward through the slider 113, causing the sealing plate 119 to fit closely to the bottom of the partition 114. The ice mold 115 is sealed through the sealing ring 121. An appropriate amount of water is injected into the ice mold 115 through the water injection pipe 118. The liquefied natural gas flows through the connecting pipe 116 to the vaporizer 117, and then forms gasification through the vaporizer 117, generating a large amount of cold energy. The cold energy accumulates in the box body 1, causing the temperature inside the box body 1 to drop rapidly. The heat of the water in the ice mold 115 is absorbed through heat transfer, causing it to solidify into ice cubes.

[0032] Step 2: After completely solidifying into ice cubes, start the point heating ring 2. The point heating ring 2 heats the ice mold 115, causing the surface of the ice cubes to melt and creating a small gap between the mold, enabling rapid demolding. The demolded ice cubes are driven down together with the sealing plate 119, completing the production of ice cubes. Through circulation, the collection and utilization of cold energy can be achieved. The heat preservation sleeve 21 wraps the water injection pipe 118 to prevent the water inside from freezing due to the supercooling inside the box body 1.

[0033] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent replacements or changes should be covered within the protection scope of the present utility model.

Claims

1. A BOG cold energy recovery device, comprising a housing (1), characterized in that: A double-headed motor (11) is fixedly provided on the front side of the box body (1), a front box (12) is fixedly provided on both sides of the double-headed motor (11), side boxes (13) are fixedly provided on both sides of the box body (1), a pair of vertical boxes (14) are fixedly provided on both sides of the box body (1), a first round rod (15) is rotatably provided in the front box (12), the first round rod (15) is fixedly connected to the output end of the double-headed motor (11), a first bevel gear (16) is fixedly provided on the first round rod (15), a second round rod (17) is rotatably provided in the side box (13), a second bevel gear (18) is fixedly provided at one end of the second round rod (17), the first bevel gear (16) is meshed with the second bevel gear (18), a pair of third bevel gears (19) are fixedly provided on the second round rod (17), a threaded rod (15) is rotatably provided in the vertical box (14), 11), a fourth bevel gear (112) is fixedly provided on the top of the threaded rod (111), the third bevel gear (19) is meshed with the fourth bevel gear (112), a slider (113) is slidably provided in the vertical box (14), a partition (114) is fixedly provided in the box body (1), a plurality of ice molds (115) are fixedly provided on the partition (114), a connecting pipe (116) is fixedly provided in the box body (1), a vaporizer (117) is fixedly provided in the middle of the connecting pipe (116), a water injection pipe (118) is fixedly provided on the ice mold (115), a sealing plate (119) is provided at the bottom of the box body (1), the sealing plate (119) is fixedly connected to the slider (113), a plurality of square holes (120) are opened on the partition (114), and a plurality of sealing rings (121) are fixedly provided at the bottom of the partition (114).

2. A BOG cold energy recovery device according to claim 1, characterized in that: A plurality of electric heating rings (2) are fixedly arranged inside the ice mold (115), and a heat preservation sleeve (21) is fixedly arranged outside the water injection pipe (118).

3. The BOG cold energy recovery device according to claim 1, characterized in that: The water injection pipes (118) all penetrate the box body (1), the sliders (113) all penetrate the vertical box (14), each pair of the threaded rods (111) are arranged in a mirror-symmetrical manner, and the threaded rods (111) all penetrate the side box (13) and the vertical box (14).

4. The BOG cold energy recovery device according to claim 1, characterized in that: The second round rods (17) penetrate the front box (12) and the side box (13), and the first round rods (15) penetrate the front box (12).

5. The BOG cold energy recovery device according to claim 1, characterized in that: A plurality of supporting legs are fixedly provided at the four corners of the bottom of the box body (1), and the connecting pipe (116) passes through the box body (1).

6. The BOG cold energy recovery device according to claim 1, characterized in that: The number of the sealing rings (121) corresponds to the number of the square holes (120), and the plurality of ice molds (115) are distributed in a rectangular row.

7. The BOG cold energy recovery device according to claim 1, characterized in that: The ice molds (115) are respectively located directly above the square holes (120), and the box body (1) is in the shape of a rectangular parallelepiped with a normally open bottom.

8. The BOG cold energy recovery device according to claim 2, characterized in that: The insulation sleeve (21) is located between the ice mold (115) and the top of the box body (1), the water injection pipe (118) passes through the insulation sleeve (21), and the insulation sleeve (21) is located at the top center of the ice mold (115).

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