Ice cream mixing device with new evaporative condenser

Abstract

The utility model discloses ice cream mixing and stirring device novel evaporative condenser relates to ice cream mixing and stirring device technical field, and its technical scheme is: including freezing cylinder, the fixed ring board is fixed to freezing cylinder outside, the feed pipe is fixed to freezing cylinder one side, the discharge pipe is fixed to freezing cylinder bottom, the precooling subassembly is equipped with to feed pipe outside, the evaporator subassembly is equipped with to fixed ring board bottom, the evaporator subassembly includes two fixed plates, and the clamping block is fixed to two fixed plates top, and the utility model has the beneficial effects that: through the efficient gas -liquid separation effect of separation tank, can reduce the refrigerant retention rate in evaporator, combines the active recovery function of pump machine, makes freezing cylinder temperature stable time shorten, and the production efficiency is improved significantly, and the contact thermal resistance of spiral coil pipe and freezing cylinder is reduced to the elastic heat conduction gasket, and the accurate flow control of cooperation electron expansion valve can control the freezing cylinder each area temperature difference in range, avoid the uneven cold of milk gruel.

Description

Technical Field

[0001] This utility model relates to the technical field of ice cream mixing and stirring devices, specifically to a novel evaporator-condenser for ice cream mixing and stirring devices. Background Technology

[0002] Ice cream mixing equipment on the market mainly consists of a refrigeration system, mixing components, and a material tank and a freezing tank. Its working principle is that the compressor pushes the refrigerant through the condenser (heat dissipation) and evaporator (heat absorption), causing the temperature of the freezing tank to drop sharply to about -10℃. When the raw materials enter the freezing tank, the agitator continues to rotate, and the scraper scrapes off the inner wall to form ice crystals. Air is injected into the raw materials through the expansion pump, causing them to expand and form tiny bubbles (expansion rate of about 30-60%), which generates resistance and easily increases the mixing resistance, resulting in an increase in current. When the threshold is reached, refrigeration stops (the viscosity of the finished product meets the standard).

[0003] There is an unavoidable gap between the coils and the freezing cylinder of the existing evaporator, and the outlet is not equipped with an efficient separation structure. This causes some refrigerant to remain in the evaporator during the start-up and shutdown phases. This retained refrigerant cannot participate in the circulation in time, resulting in a longer time for the freezing cylinder temperature to stabilize, which seriously affects production efficiency. The surface of traditional coils is mostly smooth, with a large contact thermal resistance with the freezing cylinder, and there is a lack of temperature zone control, which easily leads to uneven heat exchange in some areas. This results in uneven cooling of the milk slurry in the freezing cylinder, affecting the fineness of the ice cream particles. Raw materials need to be cooled rapidly before entering the freezing cylinder, resulting in an excessive refrigeration load. Utility Model Content

[0004] To address this issue, this utility model provides a novel evaporator-condenser for an ice cream mixing and stirring device. This solves the problem of an unavoidable gap between the evaporator coil and the freezing cylinder, and the lack of a high-efficiency separation structure at the outlet. This results in some refrigerant remaining in the evaporator during start-up and shutdown, preventing timely circulation and extending the time required for the freezing cylinder temperature to stabilize, severely impacting production efficiency. Traditional coils often have smooth surfaces with high thermal resistance to the freezing cylinder and lack temperature zone control, leading to uneven heat exchange and uneven cooling of the milk mixture within the freezing cylinder, affecting the fineness of the ice cream particles. Furthermore, the raw materials require rapid cooling before entering the freezing cylinder, resulting in excessive refrigeration load.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel evaporator and condenser for an ice cream mixing and stirring device, comprising a freezing cylinder, a fixed ring plate fixedly provided on the outside of the freezing cylinder, a feed pipe fixedly provided on one side of the freezing cylinder, a discharge pipe fixedly provided at the bottom of the freezing cylinder, a pre-cooling component provided on the outside of the feed pipe, and an evaporator component provided at the bottom of the fixed ring plate; The evaporator assembly includes two fixing plates, each with a locking block fixed to its top and a locking groove at its bottom. A spiral coil is fixed between the two fixing plates, and an elastic heat-conducting pad is provided on the inner side of the spiral coil. The spiral coil is fitted onto the outside of the freezing cylinder, and the elastic heat-conducting pad contacts the side wall of the freezing cylinder. Multiple evaporator assemblies are engaged with each other via the locking grooves and locking blocks. The locking block of the top evaporator assembly is fixed to the fixing ring plate by bolts. Two covers are fitted onto the outside of the freezing cylinder, and the two covers are fixed together by bolts. The input and output ends of the spiral coil both penetrate the covers. An electronic expansion valve is installed at the input end of the spiral coil. A refrigerant handling unit is provided on one side of one of the covers.

[0006] Preferably, the refrigerant handling unit includes a separator tank located on one side of the casing. The top of the separator tank is connected to a seventh connecting pipe and an eighth connecting pipe. One end of the eighth connecting pipe is connected to a two-way connecting pipe, which is connected to the output end of the spiral coil. One end of the seventh connecting pipe is connected to a compressor. The output end of the compressor is connected to a ninth connecting pipe, and a condenser is installed at one end of the ninth connecting pipe.

[0007] Preferably, one of the covers is fixedly provided with a box body on one side, and a box door is connected to one side of the box body via a hinge, and a handle is fixedly provided on one side of the box door.

[0008] Preferably, a storage tank is fixedly installed inside the box, a fifth connecting pipe is connected to one side of the storage tank, a three-way connecting pipe is connected to one end of the fifth connecting pipe, and the three-way connecting pipe is connected to an electronic expansion valve.

[0009] Preferably, the precooling assembly includes a first cold storage shell and a second cold storage shell, which are fixedly sleeved on the outside of the feed pipe. A second connecting pipe is connected to one side of the condenser and is fixedly connected to the second cold storage shell. A sixth connecting pipe is connected to the bottom of the separator, and a pump is connected to one side of the sixth connecting pipe. A first connecting pipe is fixedly connected to the output end of the pump. One end of the first connecting pipe is fixedly connected to the first cold storage shell. A third connecting pipe is fixedly connected to one side of the first cold storage shell, and a fourth connecting pipe is fixedly connected to one side of the second cold storage shell. One end of the third and fourth connecting pipes is fixedly connected to the storage tank.

[0010] Preferably, an mounting plate is fixedly fitted on the outside of the separation tank, and the mounting plate is fixedly connected to the inner wall of the tank.

[0011] Preferably, the condenser is fixedly connected to the inner wall of the housing.

[0012] Preferably, the pump is fixedly connected to the inner wall of the housing.

[0013] The present invention has the following advantages: The efficient gas-liquid separation of the separator can reduce the refrigerant retention rate in the evaporator. Combined with the active recovery function of the pump, the temperature stabilization time of the freezing cylinder is shortened, significantly improving production efficiency. The elastic heat-conducting pad reduces the contact thermal resistance between the spiral coil and the freezing cylinder. With the precise flow control of the electronic expansion valve, the temperature difference in each area of ​​the freezing cylinder can be controlled within the range, avoiding the problem of coarse particles caused by uneven cooling of the milk slurry. The precooling component performs two-stage precooling of the raw material through the first and second cold storage shells, which can reduce the temperature of the raw material and reduce the subsequent refrigeration load of the refrigeration cylinder. Combined with the refrigerant circulation and recovery design, the overall energy consumption is lower than that of the traditional structure. Attached Figure Description

[0014] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0015] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0016] Figure 1 A schematic diagram of the overall structure of this utility model; Figure 2 A bottom view of the overall structure provided for this utility model; Figure 3 A cross-sectional view of the box body provided for this utility model; Figure 4 A perspective view of the refrigerant handling unit provided by this utility model; Figure 5 A perspective view of the housing provided for this utility model; Figure 6 A perspective view of the spiral coil provided for this utility model; Figure 7 A cross-sectional view of the separation tank provided for this utility model.

[0017] In the diagram: 1. Freezing cylinder; 2. Cover; 3. Fixing ring plate; 4. Feed pipe; 5. First cold storage shell; 6. Second cold storage shell; 7. First connecting pipe; 8. Second connecting pipe; 9. Third connecting pipe; 10. Fourth connecting pipe; 11. Box body; 12. Box door; 13. Handle; 14. Discharge pipe; 15. Pump; 16. T-connector pipe one; 17. T-connector pipe two; 18. Storage tank; 19. Fifth connecting pipe; 20. Electronic expansion valve; 21. Sixth connecting pipe; 22. Mounting plate; 23. Separator tank; 24. Compressor; 25. Seventh connecting pipe; 26. Eighth connecting pipe; 27. Condenser; 28. Ninth connecting pipe; 29. ​​Fixing plate; 30. Spiral coil; 31. Slot; 32. Locking block; 33. Elastic thermal conductive pad. Detailed Implementation

[0018] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] See attached document Figure 1 -Appendix Figure 7 The present invention provides a novel evaporator and condenser for an ice cream mixing and stirring device, comprising a freezing cylinder 1, a fixing ring plate 3 fixedly provided on the outside of the freezing cylinder 1, a feed pipe 4 fixedly provided on one side of the freezing cylinder 1, a discharge pipe 14 fixedly provided at the bottom of the freezing cylinder 1, a pre-cooling component provided on the outside of the feed pipe 4, and an evaporator component provided at the bottom of the fixing ring plate 3. The evaporator assembly includes two fixing plates 29, each with a locking block 32 fixed at its top and a locking groove 31 at its bottom. A spiral coil 30 is fixed between the two fixing plates 29. An elastic heat-conducting pad 33 is provided on the inner side of the spiral coil 30. The spiral coil 30 is sleeved on the outside of the freezing cylinder 1, and the elastic heat-conducting pad 33 contacts the side wall of the freezing cylinder 1. Multiple evaporator assemblies are engaged with the locking blocks 32 through the locking grooves 31. The locking block 32 of the top evaporator assembly is fixed to the fixing ring plate 3 by bolts. Two covers 2 are sleeved on the outside of the freezing cylinder 1 and are fixed to each other by bolts. The input and output ends of the spiral coil 30 both penetrate the cover 2. An electronic expansion valve 20 is installed at the input end of the spiral coil 30. A refrigerant handling unit is provided on one side of one of the cover 2. In this embodiment, the low-temperature, low-pressure liquid refrigerant is delivered into the spiral coil 30 by the electronic expansion valve 20 according to the temperature sensor signal of the refrigeration cylinder 1; The refrigerant absorbs heat from the refrigeration cylinder 1 within the spiral coil 30 and evaporates into gaseous refrigerant, causing the temperature of the refrigeration cylinder to gradually decrease. The flexible thermally conductive pad 33 is made of a silicone rubber substrate to ensure a tight fit at low temperatures; When the raw material enters the freezing cylinder 1 and begins to stir and expand, the temperature of the inner wall of the freezing cylinder 1 will fluctuate due to the heat absorption of the raw material. The electronic expansion valve 20 adjusts the flow rate in real time to ensure temperature stability. If the pressure difference threshold between the inlet and outlet of the spiral coil 30 is detected, the PLC system will automatically close the electronic expansion valve 20 and activate the alarm to prevent equipment overload. To achieve the purpose of refrigerant treatment, this device adopts the following technical solution: The refrigerant treatment unit includes a separator 23, which is located on one side of the casing 2. The top of the separator 23 is connected to a seventh connecting pipe 25 and an eighth connecting pipe 26. One end of the eighth connecting pipe 26 is connected to a two-way connecting pipe 17, which is connected to the output end of the spiral coil 30. One end of the seventh connecting pipe 25 is connected to a compressor 24, and the output end of the compressor 24 is connected to a ninth connecting pipe 28. A condenser 2 is installed at one end of the ninth connecting pipe 28. 7. One of the housings 2 is fixedly provided with a box body 11 on one side. A box door 12 is connected to one side of the box body 11 by a hinge. A handle 13 is fixedly provided on one side of the box door 12. An installation plate 22 is fixedly fitted on the outside of the separator 23. The installation plate 22 is fixedly connected to the inner wall of the box body 11. The condenser 27 is fixedly connected to the inner wall of the box body 11. The gas-liquid mixed refrigerant enters the separator 23 through the three-way connecting pipe 2 17 and the eighth connecting pipe 26. The separated gaseous refrigerant returns to the compressor 24 through the seventh connecting pipe 25. The remaining liquid refrigerant is stored at the bottom of the separator 23. To achieve the storage purpose, the device adopts the following technical solution: a storage tank 18 is fixedly installed inside the housing 11. A fifth connecting pipe 19 is connected to one side of the storage tank 18. A three-way connecting pipe 16 is connected to one end of the fifth connecting pipe 19. The three-way connecting pipe 16 is connected to the electronic expansion valve 20. The refrigerant is stored in the storage tank 18. The refrigerant in the storage tank 18 is transported to the three-way connecting pipe 16 through the fifth connecting pipe 19. The electronic expansion valve 20 sends the low-temperature and low-pressure liquid refrigerant into the spiral coil 30 according to the temperature sensor signal of the refrigeration cylinder 1. To achieve pre-cooling, this device employs the following technical solution: The pre-cooling assembly includes a first cold storage shell 5 and a second cold storage shell 6, which are fixedly sleeved on the outside of the feed pipe 4. A second connecting pipe 8 is connected to one side of the condenser 27, and the second connecting pipe 8 is fixedly connected to the second cold storage shell 6. A sixth connecting pipe 21 is connected to the bottom of the separator 23, and a pump 15 is connected to one side of the sixth connecting pipe 21. A first connecting pipe 7 is fixedly connected to the output end of the pump 15, and one end of the first connecting pipe 7 is fixedly connected to the first cold storage shell 5. A third connecting pipe 9 is fixedly connected to one side of the first cold storage shell 5, and the second cold storage shell 6... A fourth connecting pipe 10 is fixedly connected to the side. One end of the third connecting pipe 9 and the fourth connecting pipe 10 is fixedly connected to the storage tank 18. The pump 15 is fixedly connected to the inner wall of the box 11. The pump 15 transports the remaining refrigerant inside the separator 23 through the sixth connecting pipe 21 to the first cold storage shell 5 through the first connecting pipe 7 to complete the first pre-cooling of the raw material in the feed pipe 4. The compressor 24 is turned on, and the gaseous refrigerant is sent to the condenser 27 for heat dissipation through the ninth connecting pipe 28 and condenses into liquid refrigerant. The liquid refrigerant enters the second cold storage shell 6 through the second connecting pipe 8 to complete the second pre-cooling of the raw material in the feed pipe 4. The pre-cooled refrigerant flows into the storage tank 18 through the third connecting pipe 9 and the fourth connecting pipe 10 to form a cycle.

[0020] The usage process of this utility model is as follows: When using this utility model, inject refrigerant into the storage tank 18, close the box door 12 and ensure that the electrical components inside the box 11 are dry; The refrigerant in the storage tank 18 is transported to the three-way connecting pipe 16 through the fifth connecting pipe 19, and the low-temperature and low-pressure liquid refrigerant is sent into the spiral coil 30 through the electronic expansion valve 20 according to the temperature sensor signal of the refrigeration cylinder 1. The refrigerant absorbs heat from the refrigeration cylinder 1 within the spiral coil 30 and evaporates into gaseous refrigerant, causing the temperature of the refrigeration cylinder to gradually decrease. The gas-liquid mixture of refrigerant enters the separator 23 through the three-way connecting pipe 217 and the eighth connecting pipe 26. The separated gaseous refrigerant returns to the compressor 24 through the seventh connecting pipe 25. The remaining liquid refrigerant is stored at the bottom of the separator 23, so that the pump 15 can transport the remaining refrigerant inside the separator 23 through the sixth connecting pipe 21 to the first cold storage shell 5 through the first connecting pipe 7 to complete the first pre-cooling of the raw material in the feed pipe 4. When the compressor 24 is turned on, the gaseous refrigerant is sent to the condenser 27 for heat dissipation through the ninth connecting pipe 28 and condenses into liquid refrigerant. The liquid refrigerant enters the second cold storage shell 6 through the second connecting pipe 8 to complete the second pre-cooling of the raw material in the feed pipe 4. The pre-cooled refrigerant flows into the storage tank 18 through the third connecting pipe 9 and the fourth connecting pipe 10 to form a cycle. When the raw material enters the freezing cylinder 1 and begins to stir and expand, the temperature of the inner wall of the freezing cylinder 1 will fluctuate due to the heat absorption of the raw material. The electronic expansion valve 20 adjusts the flow rate in real time to ensure temperature stability. If the pressure difference threshold between the inlet and outlet of the spiral coil 30 is detected, the PLC system will automatically close the electronic expansion valve 20 and start the alarm to avoid equipment overload.

[0021] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A novel evaporator-condenser for ice cream mixing and stirring, comprising a freezing cylinder (1), characterized in that: The freezing cylinder (1) is fixedly provided with a fixed ring plate (3) on the outside, a feed pipe (4) is fixedly provided on one side of the freezing cylinder (1), a discharge pipe (14) is fixedly provided at the bottom of the freezing cylinder (1), a pre-cooling component is provided on the outside of the feed pipe (4), and an evaporator component is provided at the bottom of the fixed ring plate (3). The evaporator assembly includes two fixing plates (29), each with a locking block (32) fixed at its top and a locking groove (31) at its bottom. A spiral coil (30) is fixed between the two fixing plates (29), and an elastic heat-conducting pad (33) is provided on the inner side of the spiral coil (30). The spiral coil (30) is fitted onto the outside of the freezing cylinder (1), and the elastic heat-conducting pad (33) is in contact with the side wall of the freezing cylinder (1). Multiple evaporators... The components are engaged with the locking blocks (32) through the slots (31). The locking blocks (32) of the top evaporator component are fixed to the fixing ring plate (3) by bolts. The refrigeration cylinder (1) is fitted with two covers (2), which are fixed to each other by bolts. The spiral coil (30) has both the input and output ends penetrating through the covers (2). An electronic expansion valve (20) is installed at the input end of the spiral coil (30). A refrigerant processing unit is provided on one side of one of the covers (2).

2. The novel evaporator-condenser of the ice cream mixing and stirring device according to claim 1, characterized in that: The refrigerant handling unit includes a separator (23), which is located on one side of the casing (2). The top of the separator (23) is connected to a seventh connecting pipe (25) and an eighth connecting pipe (26). One end of the eighth connecting pipe (26) is connected to a two-way connecting pipe (17), which is connected to the output end of the spiral coil (30). One end of the seventh connecting pipe (25) is connected to a compressor (24), and the output end of the compressor (24) is connected to a ninth connecting pipe (28). One end of the ninth connecting pipe (28) is equipped with a condenser (27).

3. The novel evaporator-condenser of the ice cream mixing and stirring device according to claim 2, characterized in that: One of the covers (2) is fixedly provided with a box body (11) on one side, and a box door (12) is connected to one side of the box body (11) by a hinge. A handle (13) is fixedly provided on one side of the box door (12).

4. The novel evaporator-condenser of the ice cream mixing and stirring device according to claim 3, characterized in that: The storage tank (18) is fixedly installed inside the box (11). A fifth connecting pipe (19) is connected to one side of the storage tank (18). A three-way connecting pipe (16) is connected to one end of the fifth connecting pipe (19). The three-way connecting pipe (16) is connected to the electronic expansion valve (20).

5. The novel evaporator-condenser of the ice cream mixing and stirring device according to claim 4, characterized in that: The precooling assembly includes a first cold storage shell (5) and a second cold storage shell (6). The first cold storage shell (5) and the second cold storage shell (6) are fixedly sleeved on the outside of the feed pipe (4). A second connecting pipe (8) is connected to one side of the condenser (27). The second connecting pipe (8) is fixedly connected to the second cold storage shell (6). A sixth connecting pipe (21) is connected to the bottom of the separator (23). A pump (15) is connected to one side of the sixth connecting pipe (21). A first connecting pipe (7) is fixedly connected to the output end of the pump (15). One end of the first connecting pipe (7) is fixedly connected to the first cold storage shell (5). A third connecting pipe (9) is fixedly connected to one side of the first cold storage shell (5). A fourth connecting pipe (10) is fixedly connected to one side of the second cold storage shell (6). One end of the third connecting pipe (9) and the fourth connecting pipe (10) is fixedly connected to the storage tank (18).

6. The novel evaporator-condenser of the ice cream mixing and stirring device according to claim 3, characterized in that: The separation tank (23) is fixedly fitted with an installation plate (22), which is fixedly connected to the inner wall of the box (11).

7. The novel evaporator-condenser of the ice cream mixing and stirring device according to claim 3, characterized in that: The condenser (27) is fixedly connected to the inner wall of the housing (11).

8. The novel evaporator-condenser of the ice cream mixing and stirring device according to claim 5, characterized in that: The pump (15) is fixedly connected to the inner wall of the housing (11).

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