Integrated refrigerating unit

Abstract

The integrated refrigerating unit comprises a refrigerating machine shell, the refrigerating machine shell is a cylindrical shell, and the refrigerating machine shell sequentially comprises a water collecting seat, a cooling section and a heat exchange section which are integrally formed and communicate with one another from bottom to top; a heat removal fan communicated with the interior of the heat exchange section is fixed in the middle of the heat exchange section, and a central pipe is fixed and communicated to the lower end of the heat removal fan; a water spraying pipe is arranged at the upper end in the heat exchange section, a cooling coil located in the heat exchange section is arranged below the water spraying pipe, and a cold source block is arranged below the cooling coil. A plurality of top air inlet holes are formed in the upper end of the heat exchange section, a plurality of lower air inlet holes are formed in the peripheral side of the cooling section, the structure of the refrigerator shell, the top air inlet holes, the lower air inlet holes, the central pipe and the heat exhaust fan is adopted, the cold air inlet amount in the same time period is increased, large-area heat exchange can be carried out in the same time period, and the heat exchange efficiency is improved. The heat exchange efficiency is improved, and therefore the refrigerating efficiency of the integrated refrigerating unit is improved.

Description

Technical Field

[0001] The invention relates to a refrigeration unit, in particular to an integrated refrigeration unit applied in the field of refrigeration machines. Background Art

[0002] A refrigerator is a machine that transfers the heat of a cooled object with a lower temperature to the ambient medium to obtain cooling capacity. A refrigeration unit is generally composed of a compressor, condenser, expansion valve, evaporator and control system. The integrated refrigeration unit integrates various systems into the box structure. It has wide adaptability and is easy to install. It is widely used in industrial production cooling, chemical industry, machinery industry, surface treatment industry, food industry, etc.

[0003] At present, the main structure of the integrated refrigeration unit is a cube. When designed, it uses one-side or two-side air intake and top air intake to introduce cold air, exchange heat with its internal cold source system and refrigeration cycle system, and then discharge the hot air through the upper fan (for details, please refer to the structure and principle shown in https: / / www.xinpianchang.com / a12686186).

[0004] The specification of Chinese patent CN209263399U discloses an integrated refrigeration unit, including a unit base plate, the bottom of the unit base plate is penetrated by base bolts, the top of the unit base plate is fixedly connected to a low support and a high support by the base bolts, the top of the unit base plate is fixedly connected to a DC power supply, and the top of the unit base plate is fixedly connected to a water receiving pan. The structure disclosed in the utility model is similar to the air intake of the above-mentioned integrated refrigeration unit structure, and the difference is that the exhaust fan is arranged inside and exhausts air at an angle upward.

[0005] The existing integrated refrigeration unit is easily affected by the external wind direction due to its single air intake direction. The air flow in a single direction will cause its heat exchange efficiency to be affected by the internal temperature change. After long-term use, the heat exchange efficiency will decrease. Summary of the invention

[0006] In view of 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 take in air from multiple directions and improve the heat exchange efficiency.

[0007] In order to solve the above problems, the present invention provides an integrated refrigeration unit, including a refrigerator shell, the refrigerator shell is a cylindrical shell, and the refrigerator shell includes a water collecting seat, a cooling section and a heat exchange section which 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. 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 seat, and the central pipe and the heat exhaust fan are coaxially arranged with the shell of the refrigerator; A water spray pipe is arranged at the upper end of the heat exchange section, a cooling coil located in the heat exchange section is arranged below the water spray pipe, and a cold source block is arranged below the cooling coil; The upper end of the heat exchange section is provided with a plurality of top air inlet holes which correspond to the positions of the cooling coils and are distributed in an array along the circumference of the central axis of the heat exchange section, and the peripheral side of the cooling section is provided with a plurality of lower air inlet holes which correspond to the positions of the cold source blocks and are distributed in an array along the circumference of the central axis of the cooling section; It also includes a cold water delivery system, which is connected with the water spray pipe and the water collecting seat through a pipeline, and the cold water delivery system is provided with a pipeline connected with the outside.

[0008] In the above-mentioned integrated refrigeration unit, by setting the refrigerator shell as a cylindrical shell, and providing a top air inlet hole at the upper end of the refrigerator shell and a lower air inlet hole 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. In conjunction with the central pipe, the air after heat exchange is discharged by the heat exhaust fan, 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.

[0009] As a further supplement to the present application, the cold source block is in the shape of a hollow cylinder in the middle, and a plurality of heat dissipation channels are opened on the circumference of the cold source block, and the plurality of heat dissipation channels are distributed in an array along the circumference of the central axis of the central tube.

[0010] As a further supplement to the present application, a plurality of cooling coils are provided, and the plurality of cooling coils are distributed in an array along the circumference of the central axis of the central tube; The upper and lower ends of the plurality of cooling coils are fixed and connected via connectors.

[0011] As a further supplement to the present application, an air inlet notch is provided at the lower end of the central tube, and the air inlet notch corresponds to the opening position of the heat dissipation channel inside the cold source block; An air return hole is opened in the middle of the central tube, and the air return hole is located at the lower end of the heat exchange section and corresponds to the lower end of the cooling coil.

[0012] As a further supplement to the present application, the connecting piece includes a first elbow and a second elbow; The first bend pipe is connected to the pipe openings at the upper parts of two adjacent cooling coils, and the second bend pipe is connected to the pipe openings at the lower parts of two adjacent cooling coils; The first curved pipe and the second curved pipe are arranged alternately, one end of the first curved pipe and one end of the second curved pipe are respectively connected to the upper and lower ends of one of the cooling coils, the other end of the first curved pipe is connected to the upper end of another cooling coil, and the other end of the second curved pipe is connected to the lower end of another cooling coil.

[0013] As a further supplement to the present application, 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 spray heads are staggered between two adjacent spray heads.

[0014] As another improvement of the present application, the cold water delivery system is located at the lower end of the water collecting seat, and the pipeline connecting the cold water delivery system with the water collecting seat and the water spray pipe is located in the refrigerator casing.

[0015] As another improvement supplement to the present application, the inner diameter of the heat dissipation channel at one end close to the central tube is smaller, the inner diameter of the heat dissipation channel at one end away from the central tube is larger, and the inner diameter of the heat dissipation channel gradually increases from the end close to the central tube to the end away from the central tube.

[0016] In summary, by setting the refrigerator shell as a cylindrical shell and arranging a top air inlet hole at the upper end of the refrigerator shell and a lower air inlet hole at the lower part, it is possible to simultaneously introduce cold air from the upper end face and the lower circumference. Compared with the existing single-side introduction, the air inlet 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 in cooperation with the central pipe. Specifically, when the heat exhaust fan is in operation, the air in the central pipe is extracted, so that the cold air entering from 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 notch. The cold air entering the heat exchange section from the top air inlet hole exchanges heat with the cooling coil at the same time as the cooling water sprayed from the water spray pipe, and then enters the central pipe through the air return hole. This is conducive to the heat exhaust fan to discharge the hot air after heat exchange between the cooling coil and the cold source block, and can perform heat exchange over a larger area at the same time, thereby improving the heat exchange efficiency, thereby improving the cooling efficiency of the integrated refrigeration unit. By setting the cold source block and the cooling coil as a cylindrical distribution structure, the cooling coil and the cold source block can cooperate with the cylindrical refrigerator shell, fully utilizing the internal space of the refrigerator shell, increasing the heat exchange area, and facilitating the flow of cooling medium, water and air, further improving the refrigeration efficiency of the integrated refrigeration unit; The first bend pipe and the second bend pipe can connect multiple cooling coils to each other, so that the multiple cooling coils can form a unified whole through fewer pipeline structures, which is convenient for filling the cooling medium and reduces the number of unnecessary pipelines. The structural distribution is more reasonable, which can reduce the use of pipes and reduce equipment costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the first implementation method of the present application; Figure 2 This is a schematic structural diagram of the shell section of the first embodiment of the present application; Figure 3 This is a cross-sectional view of the first embodiment of the present application; Figure 4 This is a schematic diagram of the central tube structure of the first embodiment of the present application; Figure 5 This is a bottom view of the water spray pipe and the sprinkler head according to the first embodiment of the present application; Figure 6 This is a bottom view of the cooling coil connection structure of the first embodiment of the present application; Figure 7 This is a schematic diagram of air intake and exhaust when the first embodiment of the present application is working; Figure 8 This is a schematic diagram of the overall structure of the second implementation method of the present application.

[0018] Description of the numbers in the figure: 1. Water collecting seat; 2. Cooling section; 3. Heat exchange section; 4. Top air inlet; 5. Lower air inlet; 6. Heat exhaust fan; 7. Cold water delivery system; 8. Water spray pipe; 9. Cooling coil; 10. Cold source block; 11. Heat dissipation channel; 12. Central pipe; 13. Air inlet notch; 14. Return air hole; 15. Sprinkler head; 16. First bend pipe; 17. Second bend pipe. DETAILED DESCRIPTION

[0019] The following describes two implementation modes of the present application in detail with reference to the accompanying drawings.

[0020] The first implementation method: The present invention provides an integrated refrigeration unit, see Figure 1-Figure 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; 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; 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; 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; 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.

[0021] 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.

[0022] 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; 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; By setting the cold source block 10 and the cooling coil 9 as a cylindrical distribution structure, the cooling coil 9 and the cold source block 10 can cooperate with the cylindrical refrigerator shell, fully utilizing the internal space of the refrigerator shell, increasing the heat exchange area, and facilitating the flow of cooling medium, water and air, thereby further improving the refrigeration efficiency of the integrated refrigeration unit.

[0023] The upper and lower ends of the plurality of cooling coils 9 are fixed and connected by a connecting piece, and the connecting piece includes a first curved pipe 16 and a second curved pipe 17; The first bend pipe 16 is connected to the pipe openings at the upper parts of two adjacent cooling coils 9, and the second bend pipe 17 is connected to the pipe openings at the lower parts of two adjacent cooling coils 9; The first curved pipe 16 and the second curved pipe 17 are arranged alternately, and one end of the first curved pipe 16 and one end of the second curved pipe 17 are respectively connected to the upper and lower ends of one of the cooling coils 9, the other end of the first curved pipe 16 is connected to the upper end of another cooling coil 9, and the other end of the second curved pipe 17 is connected to the lower end of another cooling coil 9.

[0024] The first bend 16 and the second bend 17 can connect the multiple cooling coils 9 to each other, so that the multiple cooling coils 9 can form a unified whole through fewer pipeline structures, which is convenient for filling the cooling medium and reduces the number of unnecessary pipelines. The structural distribution is more reasonable, which can reduce the use of pipes and reduce equipment costs.

[0025] Figure 3-Figure 4 It is shown that an air inlet notch 13 is opened at the lower end of the central tube 12, and the air inlet notch 13 corresponds to the opening position of the heat dissipation channel 11 inside the cold source block 10; An air return hole 14 is provided in the middle of the central tube 12. The air return hole 14 is located at the lower end of the heat exchange section 3 and corresponds to the lower end of the cooling coil 9. When the heat exhaust fan 6 is in operation, the air in the central tube 12 is extracted, so that the cold air entering from the lower air inlet 5 enters the cold source block 10 through the heat dissipation channel 11 for heat exchange, and then enters the central tube 12 through the air inlet notch 13. The cold air entering the heat exchange section 3 from the top air inlet 4 exchanges heat with the cooling coil 9 at the same time as the cooling water sprayed from the water spray pipe 8, and then enters the central tube 12 through the air return hole 14. This is conducive to the heat exhaust fan 6 to discharge the hot air after heat exchange with the cooling coil 9 and the cold source block 10, and effectively perform the refrigeration operation.

[0026] Figure 5 and Figure 7 It is shown that the water spray pipe 8 is a spiral linear pipe structure, and 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, and the spray heads 15 are staggered between two adjacent spray heads 15. The water spray pipe 8 with a spiral linear pipe structure can more effectively cover all cooling coils 9, and cooperate with the evenly distributed spray heads 15 to achieve uniform spraying operation on all cooling coils 9, thereby ensuring the heat exchange effect.

[0027] Second implementation method: Figure 8 Another integrated refrigeration unit is shown, which is different from the first embodiment in that: The cold water delivery system 7 is located at the lower end of the water collecting seat 1, and the pipeline connecting the cold water delivery system 7 with the water collecting seat 1 and the water spraying pipe 8 is located in the refrigerator shell.

[0028] Based on the above structure, all systems of the integrated refrigeration unit can be integrated into an integral device, reducing the footprint of the integrated refrigeration unit. At the same time, it can avoid heat loss (mainly manifested as condensed water heating) caused by the pipes of the cold water delivery system 7 being exposed to the outside.

[0029] The inner diameter of the heat dissipation channel 11 at one end close to the central tube 12 is smaller, and the inner diameter of the heat dissipation channel 11 at one end away from the central tube 12 is larger, and the inner diameter of the heat dissipation channel 11 gradually increases from the end close to the central tube 12 to the end away from the central tube 12, so that the flow rate of cold air is accelerated when flowing through the heat dissipation channel 11, thereby improving the heat exchange efficiency of the inner area of ​​the cold source block 10, so that the cold source block 10 can fully exchange heat, thereby enhancing the cooling effect of the integrated refrigeration unit.

[0030] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. An integrated refrigeration unit, comprising a refrigerator housing, characterized in that: The refrigerator shell is a cylindrical shell, and comprises, from bottom to top, a water collecting seat (1), a cooling section (2) and a heat exchange section (3) which are integrally formed and interconnected; A heat exhaust fan (6) connected to the interior of the heat exchange section (3) is fixed in the middle of the heat exchange section (3); 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 air from 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); the central tube (12) and the heat exhaust fan (6) are both coaxially arranged with the outer shell of the refrigerator; 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); 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 arranged in an array along the circumference of the central axis of the heat exchange section (3); 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 arranged in an array along the circumference of the central axis of the cooling section (2); It also comprises a cold water delivery system (7), wherein the cold water delivery system (7) 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.

2. The integrated refrigeration unit according to claim 1, characterized in that: The cold source block (10) is in the shape of a cylinder with a hollow center as a whole. A plurality of heat dissipation channels (11) are provided 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).

3. The integrated refrigeration unit according to claim 2, characterized in that: A plurality of the cooling coils (9) are provided, and the plurality of the cooling coils (9) are distributed in an array along the circumference of the central axis of the central tube (12); The upper and lower ends of the plurality of cooling coils (9) are fixed and connected via connecting pieces.

4. The integrated refrigeration unit according to claim 3, characterized in that: An air inlet notch (13) is provided at the lower end of the central tube (12), and the air inlet notch (13) corresponds to the opening position of the heat dissipation channel (11) inside the cold source block (10); An air return hole (14) is provided in the middle of the central tube (12); the air return hole (14) is located at the lower end of the heat exchange section (3) and corresponds to the lower end of the cooling coil (9).

5. The integrated refrigeration unit according to claim 3, characterized in that: The connecting piece comprises a first curved pipe (16) and a second curved pipe (17); The first curved pipe (16) is connected to the pipe openings at the upper parts of two adjacent cooling coils (9), and the second curved pipe (17) is connected to the pipe openings at the lower parts of two adjacent cooling coils (9); The first curved pipe (16) and the second curved pipe (17) are arranged alternately, one end of the first curved pipe (16) and one end of the second curved pipe (17) are respectively connected to the upper and lower ends of one cooling coil (9), the other end of the first curved pipe (16) is connected to the upper end of another cooling coil (9), and the other end of the second curved pipe (17) is connected to the lower end of yet another cooling coil (9).

6. The integrated refrigeration unit according to claim 1, characterized in that: The water spray pipe (8) is a spiral linear pipe structure, and 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), and two spray heads (15) adjacent to each other are staggered.

7. The integrated refrigeration unit according to claim 3, characterized in that: The cold water delivery system (7) is located at the lower end of the water collecting seat (1), and a pipeline connecting the cold water delivery system (7) with the water collecting seat (1) and the water spray pipe (8) is located inside the refrigerator casing.

8. The integrated refrigeration unit according to claim 7, characterized in that: The inner diameter of the end of the heat dissipation channel (11) close to the central tube (12) is smaller, and the inner diameter of the end of the heat dissipation channel (11) away from the central tube (12) is larger, and the inner diameter of the heat dissipation channel (11) gradually increases from the end close to the central tube (12) to the end away from the central tube (12).

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