An integrated refrigeration unit

Abstract

The present invention relates to an integrated refrigeration unit applied to the field of refrigerators, including a refrigerator housing. The refrigerator housing is a cylindrical shell, which sequentially includes a water collection base, a cooling section, and a heat exchange section that are integrally formed and interconnected from bottom to top. A heat exhaust fan connected to the inside of the heat exchange section is fixed in the middle of the heat exchange section, and a central pipe is fixed and connected to the lower end of the heat exhaust fan. A water spray pipe is arranged at the upper end inside the heat exchange section, a cooling coil is arranged below the water spray pipe inside the heat exchange section, and a cold source block is arranged below the cooling coil. A plurality of top air intake holes are opened at the upper end of the heat exchange section, and a plurality of lower air intake holes are opened on the periphery of the cooling section. With the structures of the above-mentioned refrigerator housing, top air intake holes, lower air intake holes, central pipe, and heat exhaust fan, the amount of cold air entering in the same period is increased, large-area heat exchange can be carried out at the same time, the heat exchange efficiency is improved, and thus the refrigeration efficiency of the integrated refrigeration unit is enhanced.

Description

Technical Field

[0001] The present invention relates to a refrigeration unit, and particularly to an integrated refrigeration unit applied to the field of refrigerators. Background Art

[0002] A refrigerator is a machine that transfers the heat of a cooled object with a lower temperature to an environmental medium to obtain cold energy. A refrigeration unit generally consists of a compressor, a condenser, an expansion valve, an evaporator, and a control system. The integrated refrigeration unit integrates each system into a box structure, has wide adaptability and convenient installation, and is widely used in industrial production cooling, chemical industry, machinery industry, surface treatment industry, food industry, etc.

[0003] Currently, the main structure of the integrated refrigeration unit is a cube. When designing, it uses the method of introducing cold air from one side or both sides and cooperating with top air intake to exchange heat with the cold source system and the refrigeration cycle system inside, and then discharges the hot air through the upper fan (specifically, the structure and principle shown in https: / / www.xinpianchang.com / a12686186 can be referred to).

[0004] The specification of Chinese Patent CN209263399U discloses an integrated refrigeration unit, including a unit bottom plate. The bottom of the unit bottom plate is penetrated with anchor bolts. The top of the unit bottom plate is fixedly connected with a short support and a high support respectively through the anchor bolts. The top of the unit bottom plate is fixedly connected with a DC power supply. The top of the unit bottom plate is fixedly connected with a water receiving tray. The structure disclosed in this utility model is similar to the above-mentioned integrated refrigeration unit structure in terms of air intake. The difference is that the exhaust fan is arranged inside and exhausts air obliquely upward.

[0005] For the existing integrated refrigeration unit, due to its single air intake direction, it is easily affected by the external wind direction during air intake, and the single-direction air flow will cause its heat exchange efficiency to be affected by the internal temperature change. After long-term use, the phenomenon of decreasing heat exchange efficiency will occur. Summary of the Invention

[0006] Aiming at the above-mentioned prior art, the technical problem to be solved by the present invention is how to provide an integrated refrigeration unit that can intake air in multiple directions and improve the heat exchange efficiency.

[0007] To solve the above problems, the present invention provides an integrated refrigeration unit, including a refrigeration machine housing. The refrigeration machine housing is a cylindrical shell, and the refrigeration machine housing sequentially includes a water collecting base, a cooling section, and a heat exchange section that are integrally formed and communicate with each other from bottom to top;

[0008] In the middle of the heat exchange section, there is a heat exhaust fan fixed and communicating with the inside of the heat exchange section. At the lower end of the heat exhaust fan, there is a central pipe fixed and communicating. The central pipe is used to suck the air in the cooling section and at the lower end of the heat exchange section and discharge it through the heat exhaust fan. The lower end of the central pipe is fixed to the inner bottom wall of the water collection seat. The central pipe and the heat exhaust fan are both coaxially arranged with the refrigerator housing.

[0009] At the upper end inside the heat exchange section, there is a water spray pipe. Below the water spray pipe, there is a cooling coil located inside the heat exchange section. Below the cooling coil, there is a cold source block.

[0010] At the upper end of the heat exchange section, there are multiple top air intake holes corresponding to the position of the cooling coil and circumferentially arrayed along the central axis of the heat exchange section. On the circumferential side of the cooling section, there are multiple lower air intake holes corresponding to the position of the cold source block and circumferentially arrayed along the central axis of the cooling section.

[0011] It also includes a cold water delivery system. The cold water delivery system is connected to the water spray pipe and the water collection seat through pipes, and there is a pipe on the cold water delivery system that communicates with the outside.

[0012] In the above integrated refrigeration unit, by setting the refrigerator housing as a cylindrical shell and arranging top air intake holes at the upper end of the refrigerator housing and lower air intake holes at the lower end, it can achieve the simultaneous introduction of cold air from the upper end face and the lower circumferential direction. Compared with the existing single-sided introduction, it can greatly increase the air intake area and the amount of cold air entering within the same time period. Cooperating with the central pipe to discharge the heat-exchanged air through the heat exhaust fan, it can perform heat exchange over a larger area at the same time, improve the heat exchange efficiency, and thus enhance the refrigeration efficiency of the integrated refrigeration unit.

[0013] As a further supplement to this application, the cold source block is integrally in the shape of a cylinder with a hollow middle. There are multiple heat dissipation channels opened on the circumferential side of the cold source block, and the multiple heat dissipation channels are circumferentially arrayed along the central axis of the central pipe.

[0014] As a further supplement to this application, there are multiple cooling coils, and the multiple cooling coils are circumferentially arrayed along the central axis of the central pipe;

[0015] Both the upper and lower ends of the multiple cooling coils are fixed and communicated through connectors.

[0016] As a further supplement to this application, an air intake notch is opened at the lower end of the central pipe, and the air intake notch corresponds to the opening position of the heat dissipation channel inside the cold source block;

[0017] An air return hole is opened in the middle of the central pipe. The air return hole is located at the lower end of the heat exchange section and corresponds to the position of the lower end of the cooling coil at the same time.

[0018] As a further supplement to this application, the connector includes a first elbow pipe and a second elbow pipe;

[0019] The first elbow pipe connects the pipe openings at the upper parts of two adjacent cooling coils, and the second elbow pipe connects the pipe openings at the lower parts of two adjacent cooling coils.

[0020] The first elbow pipe and the second elbow pipe are arranged in an interleaved manner. One end of the first elbow pipe and one end of the second elbow pipe are respectively connected to the upper and lower ends of one of the cooling coils. The other end of the first elbow pipe is connected to the upper end of another cooling coil, and the other end of the second elbow pipe is connected to the lower end of yet another cooling coil.

[0021] As a further supplement to this application, the water spray pipe is a spiral linear pipe structure. A plurality of spray heads evenly distributed along the lower end of the water spray pipe are fixed at the lower end of the water spray pipe, and the two adjacent spray heads are staggered.

[0022] As another improvement of this application, the cold water delivery system is located at the lower end of the water collection base, and the pipes connecting the cold water delivery system with the water collection base and the water spray pipe are located inside the housing of the refrigerating machine.

[0023] As a supplementary improvement of this application, the inner diameter of the heat dissipation channel is smaller at the end close to the central pipe and larger at the end far from the central pipe, and the inner diameter of the heat dissipation channel gradually increases from the end close to the central pipe to the end far from the central pipe.

[0024] In summary, by setting the housing of the refrigerating machine as a cylindrical shell and providing a top air inlet hole at the upper end and a lower air inlet hole at the lower part of the housing of the refrigerating machine, it is possible to introduce cold air simultaneously from the upper end face and the lower circumferential direction. Compared with the existing single-side introduction, the air inlet area can be greatly increased, and the amount of cold air entering within the same time period can be increased. In cooperation with the central pipe, the heat-exchanged air is discharged by the exhaust fan. Specifically, when the exhaust fan operates, the air in the central pipe is extracted, so that the cold air entering through the lower air inlet hole enters the cold source block through the heat dissipation channel for heat exchange and then enters the central pipe through the air inlet gap. The cold air entering the heat exchange section through the top air inlet hole exchanges heat with the cooling water sprayed by the water spray pipe and the cooling coils at the same time and then enters the central pipe through the return air hole. This is conducive to the exhaust fan discharging the hot air after heat exchange of the cooling coils and the cold source block, enabling heat exchange over a large area at the same time, improving the heat exchange efficiency, and thus enhancing the refrigeration efficiency of the integrated refrigeration unit;

[0025] By setting the cold source block and the cooling coils as a cylindrical distribution structure as a whole, the cooling coils and the cold source block can cooperate with the cylindrical housing of the refrigerating machine, making full use of the internal space of the housing of the refrigerating machine, increasing the heat exchange area, and facilitating the flow of the cooling medium, water, and air, further enhancing the refrigeration efficiency of the integrated refrigeration unit;

[0026] The first elbow pipe and the second elbow pipe can connect multiple cooling coils, enabling a unified whole to be formed within the multiple cooling coils through fewer pipe structures, facilitating the filling of the cooling medium, reducing the unnecessary number of pipes at the same time, making the structural distribution more reasonable, reducing the use of pipe materials, and lowering the equipment cost. Description of the Drawings

[0027] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of this application;

[0028] Figure 2 It is a schematic diagram of the structure when the housing of the first embodiment of this application is sectioned;

[0029] Figure 3 It is a sectional view of the first embodiment of this application;

[0030] Figure 4 It is a schematic diagram of the central pipe structure of the first embodiment of this application;

[0031] Figure 5 It is a bottom view of the water spray pipe and the spray head of the first embodiment of this application;

[0032] Figure 6 It is a bottom view of the cooling coil connection structure of the first embodiment of this application;

[0033] Figure 7 It is a schematic diagram of air intake and exhaust during the operation of the first embodiment of this application;

[0034] Figure 8 It is a schematic diagram of the overall structure of the second embodiment of this application.

[0035] Explanation of the reference numerals in the drawings:

[0036] 1. Water collection base; 2. Cooling section; 3. Heat exchange section; 4. Top air intake hole; 5. Lower air intake hole; 6. Heat exhaust fan; 7. Cold water delivery system; 8. Water spray pipe; 9. Cooling coil; 10. Cold source block; 11. Heat dissipation duct; 12. Central pipe; 13. Air intake notch; 14. Return air hole; 15. Spray head; 16. First elbow pipe; 17. Second elbow pipe. Detailed Embodiments

[0037] The following provides a detailed description of the two embodiments of this application with reference to the drawings.

[0038] The first embodiment:

[0039] The present invention provides an integrated refrigeration unit. Please refer to Figures 1 - 3, including a refrigerator shell, the refrigerator shell is a cylindrical shell, and the refrigerator shell includes a water collecting seat 1, a cooling section 2 and a heat exchange section 3 which are integrally formed and interconnected from bottom to top;

[0040] A heat exhaust fan 6 connected to the inside of the heat exchange section 3 is fixed in the middle of the heat exchange section 3, and a central tube 12 is fixed and connected to the lower end of the heat exhaust fan 6. The central tube 12 is used to suck the air in the cooling section 2 and the lower end of the heat exchange section 3 and discharge it through the heat exhaust fan 6. The lower end of the central tube 12 is fixed to the inner bottom wall of the water collecting seat 1, and the central tube 12 and the heat exhaust fan 6 are coaxially arranged with the refrigerator housing;

[0041] A water spray pipe 8 is provided at the upper end of the heat exchange section 3, a cooling coil 9 located in the heat exchange section 3 is provided below the water spray pipe 8, and a cold source block 10 is provided below the cooling coil 9;

[0042] The upper end of the heat exchange section 3 is provided with a plurality of top air inlet holes 4 which correspond to the positions of the cooling coils 9 and are distributed in an array along the circumference of the central axis of the heat exchange section 3, and the peripheral side of the cooling section 2 is provided with a plurality of lower air inlet holes 5 which correspond to the positions of the cold source blocks 10 and are distributed in an array along the circumference of the central axis of the cooling section 2;

[0043] It also includes a cold water delivery system 7, which is connected to the water spray pipe 8 and the water collecting seat 1 through a pipeline, and the cold water delivery system 7 is provided with a pipeline connected to the outside.

[0044] Based on the above structure, by setting the refrigerator shell as a cylindrical shell, and setting a top air inlet hole 4 at the upper end of the refrigerator shell and a lower air inlet hole 5 at the lower part, it is possible to introduce cold air from the upper end surface and the lower circumference at the same time. Compared with the existing single-side introduction, the air intake area can be greatly increased, and the amount of cold air entering in the same time period can be increased. The air after heat exchange is discharged by the heat exhaust fan 6 in conjunction with the central pipe 12, and a larger area of heat exchange can be performed at the same time, thereby improving the heat exchange efficiency and thus improving the refrigeration efficiency of the integrated refrigeration unit.

[0045] Figure 2 , Figure 3 and Figure 6 It is shown that the cold source block 10 is in the shape of a hollow cylinder in the middle, and a plurality of heat dissipation channels 11 are opened on the circumference of the cold source block 10. The plurality of heat dissipation channels 11 are distributed in an array along the circumference of the central axis of the central tube 12;

[0046] A plurality of cooling coils 9 are provided, and the plurality of cooling coils 9 are distributed in an array along the central axis circumference of the central tube 12;

[0047] By setting the cold source block 10 and the cooling coil 9 as a cylindrical distribution structure as a whole, the cooling coil 9 and the cold source block 10 can be matched with the cylindrical refrigerator housing, making full use of the internal space of the refrigerator housing, increasing the heat exchange area, and facilitating the flow of the cooling medium, water and air, further improving the refrigeration efficiency of the integrated refrigeration unit.

[0048] Both the upper and lower ends of multiple cooling coils 9 are fixed and connected through connectors, and the connectors include a first elbow 16 and a second elbow 17;

[0049] The first elbow 16 connects the pipe openings at the upper parts of two adjacent cooling coils 9, and the second elbow 17 connects the pipe openings at the lower parts of two adjacent cooling coils 9;

[0050] The first elbow 16 and the second elbow 17 are arranged staggeredly. One end of the first elbow 16 and one end of the second elbow 17 are respectively connected to the upper and lower ends of one of the cooling coils 9. The other end of the first elbow 16 is connected to the upper end of another cooling coil 9, and the other end of the second elbow 17 is connected to the lower end of another cooling coil 9.

[0051] The first elbow 16 and the second elbow 17 can connect multiple cooling coils 9 to each other, enabling a unified whole to be formed within multiple cooling coils 9 through fewer pipe structures, facilitating the filling of the cooling medium, reducing unnecessary pipe quantities at the same time, making the structural distribution more reasonable, being able to reduce the use of pipe materials, and lowering the equipment cost.

[0052] Figures 3 - 4 It is shown that an air intake notch 13 is opened at the lower end of the central pipe 12, and the air intake notch 13 corresponds to the opening position of the heat dissipation channel 11 inside the cold source block 10;

[0053] A return air hole 14 is opened in the middle of the central pipe 12. The return air hole 14 is located at the lower end of the heat exchange section 3 and corresponds to the lower end position of the cooling coil 9 at the same time;

[0054] When the exhaust heat fan 6 operates, the air in the central pipe 12 is pumped out. As a result, the cold air entering from the lower air intake hole 5 passes through the heat dissipation channel 11 and enters the cold source block 10 for heat exchange, then enters the central pipe 12 through the air intake notch 13. The cold air entering the heat exchange section 3 from the top air intake hole 4 exchanges heat with the cooling water sprayed by the water spray pipe 8 and the cooling coil 9 at the same time, and then enters the central pipe 12 through the return air hole 14. This is conducive to the exhaust heat fan 6 exhausting the hot air after heat exchange of the cooling coil 9 and the cold source block 10, and effectively performing the refrigeration operation.

[0055] Figure 5 and Figure 7The water spray pipe 8 is shown as a spiral linear pipe structure. A plurality of spray heads 15 evenly distributed along the lower end of the water spray pipe 8 are fixed to the lower end of the water spray pipe 8. The spray heads 15 are staggered between two adjacent spray heads at intervals. By using the water spray pipe 8 with a spiral linear pipe structure, it can more effectively cover all the cooling coils 9, and cooperate with the evenly distributed spray heads 15 to achieve uniform spraying operation on all the cooling coils 9, ensuring the heat exchange effect.

[0056] The second implementation mode:

[0057] Figure 8 Another integrated refrigeration unit is shown. The difference from the first embodiment is that:

[0058] The cold water delivery system 7 is located at the lower end of the water collection base 1. The pipes connecting the cold water delivery system 7 with the water collection base 1 and the water spray pipe 8 are located inside the refrigeration machine housing.

[0059] Based on the above structure, all systems of the integrated refrigeration unit can be integrated into a single device, reducing the floor area of the integrated refrigeration unit. At the same time, it can avoid heat loss caused by the exposure of the pipes of the cold water delivery system 7 to the outside (mainly manifested as the temperature rise of condensate).

[0060] The inner diameter of the heat dissipation channel 11 is smaller at the end close to the central pipe 12 and larger at the end far from the central pipe 12. And the inner diameter of the heat dissipation channel 11 gradually increases from the end close to the central pipe 12 to the end far from the central pipe 12. In this way, the flow rate of the cold air is accelerated when flowing through the heat dissipation channel 11, thereby improving the heat exchange efficiency in the inner area of the cold source block 10, enabling the cold source block 10 to conduct sufficient heat exchange, and enhancing the refrigeration effect of this integrated refrigeration unit.

[0061] Combined with the current actual requirements, the above implementation modes adopted in this application, the protection scope is not limited thereto. Within the knowledge scope of those skilled in the art, various changes made without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. An integrated refrigeration unit, comprising a refrigeration machine housing, characterized in that: The chiller housing is a cylindrical shell, which successively includes a water collecting base, a cooling section, and a heat exchange section that are integrally formed and interconnected from bottom to top; A heat exhaust fan fixed to the middle of the heat exchange section and communicating with the inside of the heat exchange section, the lower end of the heat exhaust fan is fixed and communicated with a central pipe, the central pipe is used to suck the air in the cooling section and the lower end of the heat exchange section and discharge it through the heat exhaust fan, the lower end of the central pipe is fixed to the inner bottom wall of the water collecting base, and both the central pipe and the heat exhaust fan are coaxially arranged with the chiller housing; A water spray pipe is arranged at the upper end inside the heat exchange section, a cooling coil is arranged below the water spray pipe inside the heat exchange section, and a cold source block is arranged below the cooling coil; A plurality of top air inlet holes corresponding to the position of the cooling coil and circumferentially arrayed along the central axis of the heat exchange section are opened at the upper end of the heat exchange section, and a plurality of lower air inlet holes corresponding to the position of the cold source block and circumferentially arrayed along the central axis of the cooling section are opened on the periphery of the cooling section; It also includes a cold water delivery system, the cold water delivery system is connected to the water spray pipe and the water collecting base through pipes, and a pipe communicating with the outside is arranged on the cold water delivery system; The cold source block is integrally in the shape of a hollow cylinder in the middle, and a plurality of heat dissipation channels are opened on the periphery of the cold source block, and the plurality of heat dissipation channels are circumferentially arrayed along the central axis of the central pipe; A plurality of cooling coils are arranged, and the plurality of cooling coils are circumferentially arrayed along the central axis of the central pipe; The upper and lower ends of the plurality of cooling coils are fixed and communicated through connectors; An air inlet notch is opened at the lower end of the central pipe, and the air inlet notch corresponds to the opening position of the heat dissipation channel inside the cold source block; A return air hole is opened in the middle of the central pipe, and the return air hole is located at the lower end of the heat exchange section and corresponds to the position of the lower end of the cooling coil at the same time; The connector includes a first elbow pipe and a second elbow pipe; The first elbow pipe communicates with the pipe openings at the upper parts of two adjacent cooling coils, and the second elbow pipe communicates with the pipe openings at the lower parts of two adjacent cooling coils; The first elbow pipe and the second elbow pipe are arranged staggeredly, one end of the first elbow pipe and one end of the second elbow pipe are respectively communicated with the upper and lower ends of one of the cooling coils, the other end of the first elbow pipe is connected to the upper end of another cooling coil, and the other end of the second elbow pipe is connected to the lower end of another cooling coil; The inner diameter of the heat dissipation channel is smaller at the end close to the central pipe and larger at the end far from the central pipe, and the inner diameter of the heat dissipation channel gradually increases from the end close to the central pipe to the end far from the central pipe.

2. The one-piece refrigeration unit according to claim 1, wherein: The water spray pipe is a spiral linear pipe structure, and a plurality of spray heads evenly distributed along the lower end of the water spray pipe are fixed to the lower end of the water spray pipe, and the two adjacent spray heads are staggered; 3. The one-piece refrigeration unit according to claim 2, wherein: The cold water delivery system is located at the lower end of the water collecting base, and the pipes connecting the cold water delivery system with the water collecting base and the water spray pipe are located inside the chiller housing.

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