CN219014726U

CN219014726U - Heat exchange assembly of immersion liquid freezing machine

Info

Publication number: CN219014726U
Application number: CN202223275963.1U
Authority: CN
Inventors: 马剑兴; 王秋祥; 白财源
Original assignee: Microfrozen Sleep Xiamen Technology Co ltd
Current assignee: Microfrozen Sleep Xiamen Technology Co ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-05-12
Anticipated expiration: 2032-12-07

Abstract

The utility model discloses a heat exchange component of an immersion liquid freezing machine, which comprises: the utility model provides a cold-carrying agent tank, the division board, heat exchange coil and water pump, the division board is installed in the cold-carrying agent tank of immersion liquid refrigerator, the division board separates the cold-carrying agent tank into upper and lower two parts accommodation space, the one end of division board is equipped with the liquid outlet of upper and lower two parts accommodation space of intercommunication, the other end is equipped with the inlet of upper and lower two parts accommodation space of intercommunication, heat exchange coil and water pump locate in the lower part accommodation space, heat exchange coil is circuitous coiling to the inlet department of division board from the liquid outlet of division board in S-shaped, the port that heat exchange coil is close to the liquid outlet is the inlet, the port that heat exchange coil is close to the inlet is the outlet, the delivery port of water pump is inserted in the liquid outlet of division board for make the cold-carrying agent in the cold-carrying agent tank circulate between liquid outlet and inlet. The heat exchange assembly of the immersion liquid freezing machine has high heat exchange efficiency, and is beneficial to saving the heat transfer area and the inner space of the secondary refrigerant tank.

Description

Heat exchange assembly of immersion liquid freezing machine

Technical Field

The utility model relates to the technical field of immersion liquid freezing, in particular to a heat exchange assembly of an immersion liquid freezing machine.

Background

The immersion liquid freezing belongs to direct contact freezing, and is characterized in that food is placed in a low-temperature secondary refrigerant, so that the food and the low-temperature secondary refrigerant directly exchange heat, and the rapid freezing of the food is realized. The traditional liquid freezer has the problem that the temperature of the secondary refrigerant is uneven, namely the temperature of the secondary refrigerant near the heat exchange coil is lower, and the uneven temperature of the secondary refrigerant has a certain influence on the food freezing speed.

In order to solve the above problems, a stirring device is generally added in a coolant tank of an immersion liquid chiller to circulate coolant. The working principle is mainly as follows: injecting the secondary refrigerant into the secondary refrigerant tank, starting a refrigerating system, performing heat exchange between the refrigerating system and the secondary refrigerant in the secondary refrigerant tank through a heat exchange coil and cooling the secondary refrigerant, when the secondary refrigerant is cooled to a certain temperature, putting food to be frozen into the secondary refrigerant tank, performing heat exchange between the secondary refrigerant and the food to cool the food, thereby realizing the freezing of the food, simultaneously starting a stirring pump, enabling the secondary refrigerant to circulate between the heat exchange coil and the food, accelerating the heat exchange between the heat exchange coil and the secondary refrigerant and between the secondary refrigerant and the food, and further shortening the freezing time of the food.

Although the immersion liquid jelly machine solves the problem of nonuniform temperature of the secondary refrigerant, the heat exchange coil is large in size, occupies excessive space of the secondary refrigerant tank, and is low in heat exchange efficiency.

Disclosure of Invention

The utility model aims to provide a heat exchange component of an immersion liquid freezing machine, which has high heat exchange efficiency, saves heat transfer area and saves the inner space of a secondary refrigerant tank.

In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:

the utility model provides a heat exchange assembly of immersion liquid freeze machine, installs in the secondary refrigerant inslot of immersion liquid freeze machine to be connected with the refrigerating system of immersion liquid freeze machine, this heat exchange assembly of immersion liquid freeze machine includes: division board, water pump and heat exchange coil. The division board is installed in the secondary refrigerant groove for separate the secondary refrigerant groove into upper and lower two parts accommodation space, the one end of division board is equipped with the liquid outlet of two parts accommodation space about the intercommunication, and the other end is equipped with the feed liquor mouth of two parts accommodation space about the intercommunication. The heat exchange coil and the water pump are arranged in the lower accommodating space, the heat exchange coil is coiled to the liquid inlet of the separation plate in an S-shaped roundabout way from the liquid outlet of the separation plate, the port, close to the liquid outlet, of the heat exchange coil is a liquid inlet, the port, close to the liquid inlet, of the heat exchange coil is a liquid outlet, and the water outlet of the water pump is inserted in the liquid outlet of the separation plate and is used for enabling the secondary refrigerant in the secondary refrigerant tank to circularly flow between the liquid outlet and the liquid inlet.

Further, the heat exchange coil is formed by connecting at least two rows of heat conduction pipes which are horizontally arranged in parallel in series.

Further, the heat conducting pipe comprises at least one layer of pipe body which is coiled in an S-shaped detour way, and the upper layer of pipe body and the lower layer of pipe body which are adjacent are communicated through connecting pipes.

Further, the pipe body comprises a plurality of straight pipe sections and a plurality of bent pipe sections. The adjacent straight pipe sections are mirror symmetrical, the included angle alpha between the adjacent straight pipe sections is more than 0 degrees and less than or equal to 30 degrees, and the bent pipe sections are connected between the ends, away from each other, of the adjacent straight pipe sections.

Preferably, the heat exchange coil is composed of a left heat conduction pipe and a right heat conduction pipe which are horizontally arranged in parallel, the left heat conduction pipe is formed by laminating an upper left pipe body and a lower left pipe body, the right heat conduction pipe is formed by laminating an upper right pipe body and a lower right pipe body, a left side port of the lower left pipe body is communicated with a left side port of the upper left pipe body through a first connecting pipe, a right side port of the upper left pipe body is communicated with a left side port of the upper right pipe body, and a right side port of the upper right pipe body is communicated with a right side port of the lower right pipe body through a second connecting pipe.

Further, a guide cover is arranged above the liquid outlet of the partition plate, and a plurality of water outlet holes are formed in the guide cover along the circumferential direction.

Further, the division plate comprises a first horizontal plate, a second vertical plate, a third horizontal plate, a fourth vertical plate, a fifth horizontal plate and a sixth vertical plate which are connected in sequence in a stepped mode, the first horizontal plate is lapped on the upper end face of the side wall of the secondary refrigerant groove, the liquid outlet is formed in the third horizontal plate, the liquid inlet is formed in the fifth horizontal plate, the water pump is arranged below the third horizontal plate, and the heat exchange coil is arranged below the fifth horizontal plate.

By adopting the technical scheme, the utility model has the beneficial effects that: the heat exchange component of the immersion liquid freezing machine enables the secondary refrigerant to circularly flow between the liquid outlet and the liquid inlet of the separation plate through the separation plate and the water pump, the temperature from the liquid outlet to the liquid inlet is gradually increased through the heat exchange coil, the temperature gradient reverse heat exchange is realized, the heat exchange efficiency is improved, the heat transfer area is saved, and the refrigerant and the inner space of the secondary refrigerant groove are saved.

Drawings

Fig. 1 is a schematic perspective view of an immersion liquid chiller according to the present embodiment.

Fig. 2 is a schematic perspective view of a heat exchange assembly according to the present embodiment.

Fig. 3 is an exploded view of the heat exchange assembly of the present embodiment.

Fig. 4 is a schematic cross-sectional view of the heat exchange assembly of the present embodiment.

Fig. 5 is a schematic top view of the lower left tube body of the present embodiment.

Wherein: 1. the cooling system comprises a box body, 2, a secondary refrigerant groove, 21, an upper accommodating space, 21, a lower accommodating space, 3, a refrigerating system, 31, a refrigerant inlet, 32, a refrigerant outlet, 4, a partition plate, 41, a first horizontal plate, 42, a second vertical plate, 43, a third horizontal plate, 44, a fourth vertical plate, 45, a fifth horizontal plate, 46, a sixth vertical plate, 47, a liquid inlet, 48, a liquid outlet, 5, a heat exchange coil, 51, a left upper pipe body, 52, a left lower pipe body, 53, a right upper pipe body, 54, a right lower pipe body, 55, a first connecting pipe, 56, a second connecting pipe, 57, a straight pipe section, 58, a bent pipe section, 6, a water pump, 7, a guide cover and 71.

Detailed Description

The utility model will be further described with reference to the drawings and detailed description.

As shown in fig. 1 to 3, the immersion liquid chiller of the present embodiment includes: the refrigerating system comprises a box body 1, a secondary refrigerant tank 2 arranged in the box body 1, a heat exchange assembly arranged in the secondary refrigerant tank 2 and a refrigerating system 3 connected with the heat exchange assembly. Wherein, the heat exchange assembly includes: the heat exchange device comprises a partition plate 4, a guide cover 7, a heat exchange coil 5 and a water pump 6.

Referring to fig. 3 and 4, the partition plate 4 of the present embodiment divides the interior space of the coolant tank 2 into an upper accommodating space 21 and a lower accommodating space 22, the partition plate 4 including: the first horizontal plate 41, the second vertical plate 42, the third horizontal plate 43, the fourth vertical plate 44, the fifth horizontal plate 45 and the sixth vertical plate 46, one end of the first horizontal plate 41 is lapped on the upper end face of the left side wall of the coolant tank 2, one end of the second vertical plate 42 is connected with the other end of the first horizontal plate 41, one end of the third horizontal plate 43 is connected with the other end of the second vertical plate 42, one end of the fourth vertical plate 44 is connected with the other end of the third horizontal plate 43, one end of the fifth horizontal plate 45 is connected with the other end of the fourth vertical plate 44, one end of the sixth vertical plate 46 is connected with the other end of the fifth horizontal plate 45, and the other end of the sixth vertical plate 46 falls on the bottom plate of the coolant tank 2. The third horizontal plate 43 is provided with a liquid outlet 48, the fifth horizontal plate 45 is provided with a liquid inlet 47, food can be placed on the fifth horizontal plate 45, and in order to prevent the food from entering the lower accommodating space 22 from the liquid inlet 47, the liquid inlet 47 can be designed into a grid shape, which is inconvenient for later cleaning.

The water pump 6 of the present embodiment is disposed below the third horizontal plate 43, and the water outlet of the water pump 6 is inserted into the liquid outlet 48. The air guide sleeve 7 of the embodiment is provided with a plurality of water outlet holes 71 along the circumferential direction, the air guide sleeve 7 is fixed on the third horizontal plate 43 and covers the liquid outlet 48 so as to guide the secondary refrigerant sprayed by the water pump 6, and the secondary refrigerant in the upper accommodating space 21 is ensured to flow from the liquid outlet 48 to the liquid inlet 47.

The heat exchange coil 5 of the embodiment is located below the fifth horizontal plate 45, and the heat exchange coil 5 is wound around from the liquid outlet 48 to the liquid inlet 47, where the port on the left side is a liquid inlet port, and the port on the right side is a liquid outlet port. Specifically, the heat exchange coil 5 of this embodiment is formed by connecting two rows of heat conduction pipes arranged in parallel horizontally in series, and the two rows of heat conduction pipes are respectively: a left heat pipe positioned at the left side and a right heat pipe positioned at the right side. The left heat conduction pipe is composed of a left upper pipe body 51 and a left lower pipe body 52 positioned below the left upper pipe body 51, and the right heat conduction pipe is composed of a right upper pipe body 53 and a right lower pipe body 54 positioned below the right upper pipe body 53. The right side port of the left lower tube body 52 is connected to the refrigerant outlet 32 of the refrigeration system 3, the left side port of the left lower tube body 52 is communicated with the left side port of the left upper tube body 51 through the first connecting tube 55, the right side port of the left upper tube body 51 is communicated with the left side port of the right upper tube body 53, the right side port of the right upper tube body 53 is communicated with the right side port of the right lower tube body 54 through the second connecting tube 56, and the left side port of the right lower tube body 54 is communicated with the refrigerant inlet 31 of the refrigeration system 3.

Referring to fig. 5, the upper left pipe body 51, the upper right pipe body 53, the lower left pipe body 52 and the lower right pipe body 54 of the present embodiment are similar in structure, and each include: the two adjacent straight pipe sections 57 of the pipe body are in mirror symmetry, the included angle between the two straight pipe sections 57 is alpha (0 degrees is less than or equal to 30 degrees), the bent pipe sections 58 are connected between the mutually far ends of the two adjacent straight pipe sections 57, the distance between the mutually near ends of the two adjacent straight pipe sections 57 is a (0 is less than or equal to 2 cm), so that the straight pipe sections 57 are compactly arranged, the occupied area of the heat exchange coil 5 is reduced, the inner space of the secondary refrigerant tank 2 is saved, and the food containing capacity of the immersed liquid freezing machine is improved.

Referring to fig. 4, the solid arrow in fig. 4 is the flow direction of the secondary refrigerant, the hollow arrow is the flow direction of the refrigerant, and the working principle of the immersion liquid chiller in this embodiment is as follows: the refrigerating system 3 and the water pump 6 are started, the water pump 6 enables the refrigerating medium in the upper accommodating space 21 to flow from the liquid outlet 48 to the liquid inlet 47 of the partition plate 4, the refrigerating medium in the lower accommodating space 22 flows from the liquid inlet 47 to the liquid outlet 48 of the partition plate 4 to form circulation, the refrigerating medium of the refrigerating system 3 flows into the heat exchange coil 5 from the right port of the left lower pipe body 52, flows out of the heat exchange coil 5 from the left port of the right lower pipe body 54, the refrigerating medium absorbs the heat of the refrigerating medium in the process of flowing in the heat exchange coil 5 to gradually cool the refrigerating medium, the temperature of the refrigerating medium gradually rises, the temperature of the left side of the heat exchange coil 5 is lower than the temperature of the right side, the temperature of the heat exchange coil 5 gradually rises from left to right, the refrigerating medium flows from right to left, a larger average temperature difference can be kept between the refrigerating medium and the refrigerating medium in the flowing process of the refrigerating medium, when other conditions are the average temperature difference is larger, the heat exchange efficiency is better when the amount is larger, the heat exchange efficiency is more heat exchange efficiency is needed, and the heat transfer area of the refrigerating medium is more heat is required to be transferred to the heat transfer space 2, and the heat transfer area is saved. It will be appreciated that the structure of the heat exchange coil 5 is not limited to the structure shown in the present embodiment, and the number of columns and layers of the heat exchange coil 5 may be determined according to actual needs, as long as the temperature of the refrigerant on the left side of the heat exchange coil 5 is lower than that on the right side.

While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a heat exchange assembly of immersion liquid freeze machine, installs in the secondary refrigerant inslot of immersion liquid freeze machine to be connected with the refrigerating system of immersion liquid freeze machine, its characterized in that includes:

the separation plate is arranged in the secondary refrigerant groove and is used for separating the secondary refrigerant groove into an upper part accommodating space and a lower part accommodating space, one end of the separation plate is provided with a liquid outlet communicated with the upper part accommodating space and the lower part accommodating space, and the other end of the separation plate is provided with a liquid inlet communicated with the upper part accommodating space and the lower part accommodating space;

the heat exchange coil is arranged in the lower accommodating space, the heat exchange coil is coiled to the liquid inlet of the partition plate in an S-shaped detour way from the liquid outlet of the partition plate, the port of the heat exchange coil, which is close to the liquid outlet, is a liquid inlet, and the port of the heat exchange coil, which is close to the liquid inlet, is a liquid outlet;

the water pump is arranged in the lower accommodating space, and the water outlet of the water pump is inserted in the liquid outlet of the partition plate and is used for enabling the secondary refrigerant in the secondary refrigerant tank to circularly flow between the liquid outlet and the liquid inlet.

2. The heat exchange assembly of the immersion liquid freezer as claimed in claim 1, wherein the heat exchange coil is formed by connecting at least two rows of heat conducting pipes which are horizontally arranged in parallel in series.

3. The heat exchange assembly of the immersion liquid freezing machine according to claim 2, wherein the heat conducting pipe comprises at least one layer of pipe body which is coiled in an S-shaped detour way, and the upper layer and the lower layer of pipe body are communicated through connecting pipes.

4. A heat exchange assembly for an immersion liquid chiller according to claim 3 wherein said tubular body comprises:

the straight pipe sections are in mirror symmetry, and an included angle alpha between every two straight pipe sections is more than 0 degrees and less than or equal to 30 degrees;

and the bent pipe sections are connected between the ends, away from each other, of the adjacent straight pipe sections.

5. The heat exchange assembly of the immersion liquid freezing machine according to claim 4, wherein the heat exchange coil is composed of a left heat conducting pipe and a right heat conducting pipe which are horizontally arranged in parallel, the left heat conducting pipe is formed by laminating an upper left pipe body and a lower left pipe body, the right heat conducting pipe is formed by laminating an upper right pipe body and a lower right pipe body, a left port of the lower left pipe body is communicated with a left port of the upper left pipe body through a first connecting pipe, a right port of the upper left pipe body is communicated with a left port of the upper right pipe body, and a right port of the upper right pipe body is communicated with a right port of the lower right pipe body through a second connecting pipe.

6. The heat exchange assembly of any one of claims 1 to 5, wherein a guide cover is installed above the liquid outlet of the partition plate, and a plurality of water outlet holes are formed in the guide cover along the circumferential direction.

7. The heat exchange assembly of the immersion liquid chiller according to claim 6 wherein said divider plate comprises: the liquid inlet is arranged on the fifth horizontal plate, the water pump is arranged below the third horizontal plate, and the heat exchange coil is arranged below the fifth horizontal plate.

8. The heat exchange assembly of the immersion liquid chiller according to claim 6 wherein the liquid inlet is in the form of a mesh.