A nitrogen water precooler for reducing energy consumption of a refrigerator

Abstract

The application belongs to the technical field of refrigeration equipment, and particularly relates to a nitrogen water pre-cooler for reducing energy consumption of a freezer, which comprises a pre-cooling tank, an inlet pipe and an outlet pipe are arranged on the pre-cooling tank respectively, one end of the inlet pipe fixedly connected with a connecting pipe in the pre-cooling tank, a plurality of capillary tubes are connected to the connecting pipe, and the capillary tubes are used for spraying liquid in a mist form, a descaling mechanism is connected to the top of the pre-cooling tank, and the descaling mechanism is used for descaling the connection between the outlet pipe and the pre-cooling tank, the descaling mechanism comprises a connecting seat, a liftable lifting rod is connected to the connecting seat, a cam ring is rotatably connected to the connecting seat, and the cam ring is used for driving the lifting rod to lift, a rotatable screw column is connected to the lifting rod, a connecting rod is fixedly connected to the screw column, a descaling sleeve is fixedly connected to the connecting rod, and the descaling sleeve is used for being inserted into the outlet pipe to descale the inner wall of the outlet pipe, and the descaling mechanism connected to the top of the pre-cooling tank is used for descaling the inner wall of the outlet pipe, so that the outlet pipe is prevented from being blocked.

Description

Technical Field

[0001] This invention relates to the field of refrigeration equipment technology, and in particular to a nitrogen-water precooler for reducing the energy consumption of a refrigeration unit. Background Technology

[0002] The nitrogen-water precooler is an important piece of equipment in a cryogenic oxygen generator. It is a device that lowers the temperature of the water entering the chiller. The principle is to use the polluted nitrogen gas generated by air separation and the unsaturation of water in the nitrogen gas to cause some water to evaporate. When the water evaporates, it absorbs the latent heat of vaporization, which lowers the temperature of the cooling water.

[0003] Currently, due to factors such as scaling inside the nitrogen pre-cooler, partial blockage of the top nitrogen vent, and excessive intake of waste nitrogen, water is spraying out from the top of the nitrogen pre-cooler. This water spray is also causing corrosion of on-site pipes and moss growth on the ground. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a nitrogen-water precooler that reduces the energy consumption of refrigeration units. By providing a descaling mechanism at the top of the precooling tank to descale the connection between the outlet pipe and the precooling tank, the invention aims to solve the problems in the prior art.

[0005] To achieve the above-mentioned technical objectives, the specific technical solution of the present invention is as follows: The present invention proposes a nitrogen-water precooler for reducing the energy consumption of a refrigeration unit, comprising: a precooling tank, wherein the precooling tank is respectively provided with a liquid inlet pipe and an air outlet pipe; a connecting pipe is fixedly connected to one end of the liquid inlet pipe located inside the precooling tank, and a plurality of capillary tubes are connected to the connecting pipe for spraying liquid out in a mist form; a descaling mechanism is connected to the top of the precooling tank for descaling the connection between the air outlet pipe and the precooling tank; the descaling mechanism includes a connecting seat, a liftable lifting rod is connected to the connecting seat, and a cam ring is rotatably connected to the connecting seat for driving the lifting rod to rise and fall; a rotatable spiral column is connected to the lifting rod, a connecting rod is fixedly connected to the spiral column, and a descaling sleeve is fixedly connected to the connecting rod for inserting into the air outlet pipe to descal its inner wall.

[0006] As a preferred embodiment of the present invention, the cam ring surface is provided with an inclined structure, a connecting block is fixedly connected to the lifting rod, a pulley that slides with the cam ring is fixedly connected to the connecting block, and a guide sleeve that cooperates with the lifting rod is fixedly connected to the connecting seat.

[0007] As a preferred embodiment of the present invention, the surface of the spiral column is provided with a spiral groove, a bracket is fixedly connected to the connecting seat, and a slider that slides in cooperation with the spiral groove is fixedly connected to the bracket. When the spiral column moves up and down, it drives the slider to slide in the spiral groove, so that the spiral column rotates itself while rising and falling.

[0008] As a preferred embodiment of the present invention, a friction sleeve is fixedly connected to the descaling sleeve, the friction sleeve has several grooves on its periphery, and a collection tray is connected below the descaling sleeve, so that the scale falls into the collection tray after cleaning.

[0009] As a preferred embodiment of the present invention, a driven gear that rotates coaxially is connected to the cam ring, a first motor is installed on the precooling tank, and a driving gear that meshes with the driven gear is connected to the first motor.

[0010] As a preferred embodiment of the present invention, a stop block is fixedly connected to the lower end of the lifting rod, and a return spring is connected between the stop block and the connecting seat.

[0011] As a preferred embodiment of the present invention, the precooling tank is provided with a circulation mechanism for driving the airflow inside the precooling tank. The circulation mechanism includes a connecting plate, on which multiple rotating rods are rotatably connected. Multiple fan blades are connected to the rotating rods, and corresponding air guide covers are provided around the rotating rods.

[0012] As a preferred embodiment of the present invention, a pulley is connected to the rotating rod, the two pulleys are connected by a belt drive, and a driven bevel gear is connected to the rotating rod. A second motor is installed on the surface of the precooling tank, and a driving bevel gear that meshes with the driven bevel gear is connected to the second motor.

[0013] As a preferred embodiment of the present invention, a water catcher is connected to the air outlet pipe. The water catcher includes a housing, a water outlet pipe is connected to the housing, and through holes that cooperate with the air outlet pipe are provided at both ends of the housing. A condenser pipe is connected inside the housing.

[0014] As a preferred embodiment of the present invention, a guide plate is connected inside the housing, a water tank is provided at the bottom of the housing, and the water outlet pipe is connected to the water tank.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. The present invention improves the descaling effect of the air outlet pipe by connecting a descaling mechanism to the top of the precooling tank. The descaling mechanism is equipped with a cam ring and a spiral column, which rotates itself while driving the descaling sleeve to move up and down. In addition, a collection plate is connected below the descaling sleeve to facilitate the collection of the removed scale.

[0017] 2. The present invention improves the cooling efficiency by connecting a circulation mechanism inside the precooling tank, which increases the air flow inside the precooling tank, thereby facilitating the rapid evaporation of the mist liquid sprayed from the capillary tube.

[0018] 3. The present invention has a water trap connected inside the gas outlet pipe. The water trap captures the moisture in the discharged gas, thereby separating the nitrogen gas from the water vapor and preventing the water from being sprayed out. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a nitrogen-water precooler for reducing the energy consumption of a refrigeration unit, as proposed in this invention.

[0020] Figure 2 This is a schematic diagram of the internal structure of the precooler proposed in this invention.

[0021] Figure 3 This is a schematic diagram of the descaling mechanism proposed in this invention.

[0022] Figure 4 This is a front view schematic diagram of the descaling mechanism proposed in this invention.

[0023] Figure 5 This is a schematic diagram of the circulating mechanism proposed in this invention.

[0024] Figure 6 This is a schematic diagram of the water trap proposed in this invention.

[0025] In the diagram: 1. Precooling tank; 2. Descaling mechanism; 21. Connecting seat; 22. Cam ring; 23. Inclined structure; 24. Driven gear; 25. Lifting rod; 26. Guide sleeve; 27. Connecting block; 28. Connecting rod; 29. ​​Descaling sleeve; 210. Friction sleeve; 211. Groove; 212. Pulley; 213. Support; 214. Spiral column; 215. Spiral groove; 216. Collection tray; 217. Slider; 218. Stop; 219. Return spring; 3. 31. Liquid inlet pipe; 32. Connecting pipe; 4. Capillary tube; 5. Gas outlet pipe; 6. Water trap; 51. Shell; 52. Condenser pipe; 53. Through hole; 54. Water tank; 55. Water outlet pipe; 56. Guide plate; 6. Circulation mechanism; 61. Connecting plate; 62. Rotating rod; 63. Fan blade; 64. Air guide shroud; 65. Pulley; 66. Belt cable; 67. Second motor; 68. Driven bevel gear; 69. Driving bevel gear; 7. First motor; 8. Driving gear. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0027] Example: This example discloses a nitrogen-water precooler for reducing the energy consumption of a refrigeration unit, such as... Figures 1-6As shown, it includes: a precooling tank 1, which is equipped with an inlet pipe 3 and an outlet pipe 4; nitrogen water enters the precooling tank 1 through the inlet pipe 3, and a connecting pipe 31 is fixedly connected to one end of the inlet pipe 3 inside the precooling tank 1. Several capillary tubes 32 are connected to the connecting pipe 31 to spray the liquid out in a mist. The sprayed nitrogen water evaporates quickly, thereby driving the heat in the precooling tank 1 and rapidly cooling the precooling tank 1.

[0028] like Figures 3-4 As shown, a descaling mechanism 2 is connected to the top of the precooling tank 1 for descaling the connection between the outlet pipe 4 and the precooling tank 1. The descaling mechanism 2 includes a connecting seat 21, which is fixedly connected to the inner wall of the precooling tank 1. A liftable lifting rod 25 is connected to the connecting seat 21, and a cam ring 22 is rotatably connected to the connecting seat 21. The upper end face of the cam ring 22 is set with an inclined structure to drive the lifting rod 25 to rise and fall. A driven gear 24 that rotates coaxially is connected to the cam ring 22. A first motor 7 is installed on the precooling tank 1, and an active gear that meshes with the driven gear 24 is connected to the first motor 7. Gear 8 and the first motor 7 drive the cam ring 22 to rotate through the cooperation of the driven gear 24 and the driving gear 8. A rotatable spiral column 214 is connected to the lifting rod 25. A connecting rod 28 is fixedly connected to the spiral column 214. A descaling sleeve 29 is fixedly connected to the connecting rod 28 for inserting into the air outlet pipe 4 to descal its inner wall. The spiral column 214 has a spiral groove 215 on its surface. A bracket 213 is fixedly connected to the connecting seat 21. A slider 217 that slides with the spiral groove 215 is fixedly connected to the bracket 213. When the spiral column 214 moves up and down, it drives the slider 217 to rotate. Block 217 slides within the spiral groove 215, causing the spiral column 214 to rotate while rising and falling; the surface of the cam ring 22 is provided with an inclined structure 23, and a connecting block 27 is fixedly connected to the lifting rod 25. A pulley 212 that slides with the cam ring 22 is fixedly connected to the connecting block 27. The pulley 212 always maintains contact with the surface of the cam ring 22. When the cam ring 22 rotates, it drives the pulley 212 to slide on its surface, thereby driving the lifting rod 25 to move up and down back and forth. A guide sleeve 26 that cooperates with the lifting rod 25 is fixedly connected to the connecting seat 21; In specific implementation: during descaling... The first motor 7 drives the cam ring 22 to rotate. When the cam ring 22 rotates, it drives the lifting rod 25 to move up and down. The lifting rod 25 drives the spiral column 214 to move up and down. When the spiral column 214 moves up and down, it drives the slider 217 to slide in the spiral groove 215. This causes the spiral column 214 to rotate itself while moving up and down, thereby driving the descaling sleeve 29 to rotate. This causes the descaling sleeve 29 to rotate itself while moving up and down, so as to achieve a better descaling effect and improve the removal effect of scale on the inner wall of the air outlet pipe 4. This avoids the problem of the air outlet pipe 4 being blocked by scale, resulting in poor air output.

[0029] Preferably, a friction sleeve 210 is fixedly connected to the descaling sleeve 29. The circumferential side of the friction sleeve 210 is set as a friction surface. The friction sleeve 210 contacts the inner wall of the air outlet pipe 4. Several grooves 211 are provided on the circumferential side of the friction sleeve 210. The scale removed falls from the grooves 211. A collection tray 216 is connected to the bottom of the descaling sleeve 29. The collection tray 216 is detachable. After the scale is cleaned, it falls into the collection tray 216, which is convenient for centralized treatment of scale.

[0030] Preferably, a stop block 218 is fixedly connected to the lower end of the lifting rod 25, and a return spring 219 is connected between the stop block 218 and the connecting seat 21. The return spring 219 exerts a downward elastic force on the lifting rod 25, so that the lifting rod 25 can automatically descend, and the pulley 212 and the cam ring 22 always remain in contact.

[0031] like Figure 2 and Figure 5 As shown, the precooling tank 1 is equipped with a circulation mechanism 6, which drives the airflow inside the precooling tank 1, so that the sprayed liquid evaporates and absorbs heat quickly. The circulation mechanism 6 includes a connecting plate 61, on which multiple rotating rods 62 are rotatably connected. Multiple fan blades 63 are connected to the rotating rods 62, and corresponding air guide shrouds 64 are provided around the rotating rods 62. The upper end of the air guide shroud 64 is open, and the gas is blown vertically upward from the upper end of the air guide shroud 64, increasing the gas flow speed. Pulleys 65 are connected to the rotating rods 62, and there is a connection between the two pulleys 65. The system is connected via a belt drive 66, and a driven bevel gear 68 is connected to one of the rotating rods 62. A second motor 67 is mounted on the surface of the precooling tank 1, and a driving bevel gear 69 that meshes with the driven bevel gear 68 is connected to the second motor 67. In practice, the second motor 67 drives the driving bevel gear 69 to rotate, and the driving bevel gear 69 drives the rotating rod 62 to rotate through the driven bevel gear 68, which in turn drives the fan blades 63 to rotate, causing the air in the precooling tank 1 to flow vertically, thereby rapidly evaporating the sprayed liquid and enabling the precooling tank 1 to cool down quickly.

[0032] like Figure 6 As shown, a water trap 5 is connected to the gas outlet pipe 4. The water trap 5 includes a housing 51, and a water outlet pipe 55 is connected to the housing 51. The water outlet pipe 55 is located at the bottom of the housing 51. The two ends of the housing 51 are provided with through holes 53 that are connected to the gas outlet pipe 4. A condenser pipe 52 is connected inside the housing 51. The condenser pipe 52 is spiral-shaped. A guide plate 56 is connected inside the housing 51 and is connected to the condenser pipe 52. A water tank 54 is provided at the bottom of the housing 51, and the water outlet pipe 55 is connected to the water tank 54. In specific implementation: the gas flowing out of the gas outlet pipe 4 enters the interior of the housing 51. After the gas encounters the cold condenser pipe 52, the water vapor liquefies into liquid. The liquid flows through the guide plate 56 into the water tank 54 and finally flows out through the water outlet pipe 55, achieving centralized treatment of water vapor and avoiding water vapor spraying out and causing a downward view of the equipment.

[0033] Working principle: Nitrogen water enters the precooling tank 1 through the inlet pipe 3, and then is sprayed out in a mist form through the capillary tube. The sprayed nitrogen water evaporates rapidly and absorbs heat, quickly cooling the precooling tank 1. The gas is then discharged from the outlet pipe 4 and passes through the water trap 5 to remove moisture from the gas. A descaling mechanism 2 is connected to the top of the precooling tank 1. During descaling, the first motor 7 drives the cam ring 22 to rotate. When the cam ring 22 rotates, it drives the lifting rod 25 and the spiral column 214 to rise and fall. When the spiral column 214 rises and falls, it drives the slider 217 to slide in the spiral groove 215, causing the spiral column 214 to rotate itself. This causes the descaling sleeve 29 to move up and down while rotating itself. The descaling sleeve 29 rubs against the scale on the inner wall of the outlet pipe 4, descaling the inner wall of the outlet pipe 4. A collection tray 216 is connected below the descaling sleeve 29. The removed scale falls into the collection tray 216, which facilitates the collection of the removed scale and avoids scale blockage at the connection of the outlet pipe 4, ensuring smooth exhaust from the outlet pipe 4.

[0034] Finally, it should be noted that in the description of this invention, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0035] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A nitrogen water precooler for reducing the energy consumption of a refrigerator, characterized in that, include: A precooling tank (1) is provided with an inlet pipe (3) and an outlet pipe (4). The liquid inlet pipe (3) is fixedly connected to a connecting pipe (31) at one end inside the precooling tank (1). Several capillary tubes (32) are connected to the connecting pipe (31) for spraying the liquid out in a mist. The top of the precooling tank (1) is connected to a descaling mechanism (2); The descaling mechanism (2) includes a connecting seat (21), on which a lifting rod (25) is connected, and a cam ring (22) is rotatably connected to the connecting seat (21) for driving the lifting rod (25) to rise and fall; The lifting rod (25) is connected to a rotatable spiral column (214), and a connecting rod (28) is fixedly connected to the spiral column (214). A descaling sleeve (29) is fixedly connected to the connecting rod (28) for inserting into the air outlet pipe (4) to descale its inner wall.

2. The nitrogen water precooler for reducing energy consumption of a refrigerator according to claim 1, wherein The cam ring (22) has a bevel structure (23) on its surface. A connecting block (27) is fixedly connected to the lifting rod (25). A pulley (212) that slides with the cam ring (22) is fixedly connected to the connecting block (27). A guide sleeve (26) that cooperates with the lifting rod (25) is fixedly connected to the connecting seat (21).

3. The nitrogen water precooler for reducing energy consumption of a refrigerator according to claim 2, wherein The surface of the spiral column (214) is provided with a spiral groove (215). A bracket (213) is fixedly connected to the connecting seat (21). A slider (217) that slides in cooperation with the spiral groove (215) is fixedly connected to the bracket (213). When the spiral column (214) moves up and down, it drives the slider (217) to slide in the spiral groove (215), so that the spiral column (214) rotates itself while rising and falling.

4. A nitrogen-water precooler for reducing refrigeration unit energy consumption according to claim 3, characterized in that, A friction sleeve (210) is fixedly connected to the descaling sleeve (29). The friction sleeve (210) has several slots (211) around its periphery. A collection tray (216) is connected below the descaling sleeve (29). After the scale is cleaned, it falls into the collection tray (216).

5. A nitrogen-water precooler for reducing refrigeration unit energy consumption according to claim 4, characterized in that, The cam ring (22) is connected to a driven gear (24) that rotates coaxially, and the precooling tank (1) is equipped with a first motor (7), and the first motor (7) is connected to a driving gear (8) that meshes with the driven gear (24).

6. A nitrogen-water precooler for reducing refrigeration energy consumption according to claim 5, characterized in that, A stop block (218) is fixedly connected to the lower end of the lifting rod (25), and a return spring (219) is connected between the stop block (218) and the connecting seat (21).

7. A nitrogen-water precooler for reducing refrigeration energy consumption according to claim 6, characterized in that, The precooling tank (1) is provided with a circulation mechanism (6) for driving the air flow in the precooling tank (1). The circulation mechanism (6) includes a connecting plate (61), on which multiple rotating rods (62) are rotatably connected. Multiple fan blades (63) are connected to the rotating rods (62), and a corresponding air guide shroud (64) is provided around the rotating rods (62).

8. A nitrogen-water precooler for reducing refrigeration unit energy consumption according to claim 7, characterized in that, The rotating rod (62) is connected to a pulley (65), and the two pulleys (65) are connected by a belt line (66). The rotating rod (62) is connected to a driven bevel gear (68). The surface of the precooling tank (1) is equipped with a second motor (67), and the second motor (67) is connected to a driving bevel gear (69) that meshes with the driven bevel gear (68).

9. A nitrogen-water precooler for reducing refrigeration energy consumption according to claim 8, characterized in that, A water trap (5) is connected to the vent pipe (4). The water trap (5) includes a housing (51), a water outlet pipe (55) is connected to the housing (51), and through holes (53) are provided at both ends of the housing (51) to cooperate with the vent pipe (4). A condenser pipe (52) is connected inside the housing (51).

10. A nitrogen-water precooler for reducing refrigeration energy consumption according to claim 9, characterized in that, The housing (51) is connected to a guide plate (56), and a water tank (54) is provided at the bottom of the housing (51). The water outlet pipe (55) is connected to the water tank (54).

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