Integrated evaporation screw falling film water chilling unit

Abstract

The utility model discloses an integrated evaporation screw falling film water chilling unit, and relates to the technical field of water chilling units, the integrated evaporation screw falling film water chilling unit comprises a screw compression mechanism installed in a fixing frame, the screw compression mechanism comprises an installation shell, one side of the installation shell is fixedly connected with a motor, and one end of a rotating shaft of the motor is fixedly connected with a first gear. Due to the arrangement of the condensation mechanism, in the process of condensing a refrigerant, the refrigerant enters the flow dividing port, uniformly enters the flow dividing pipes with small holes in the surfaces under the guidance of the flow dividing port, and enters the first flow dividing cavity through the small holes in the surfaces of the flow dividing pipes, so that the uniformity of the refrigerant entering the condensation pipe is improved; and meanwhile, a double-screw compression mode is adopted, continuous compression is more uniform, pressure fluctuation is smaller, and the double-screw compression type water chilling unit is more convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of chiller technology, specifically to an integrated evaporator screw falling film chiller. Background Technology

[0002] Chillers are common refrigeration equipment that play an important role in industrial production and commercial buildings. They use water as the cooling medium and transfer heat from a low-temperature environment to a high-temperature environment through a refrigeration cycle, thus producing chilled water. Simply put, it's like a large "refrigeration plant" capable of producing large quantities of chilled water to meet the cooling needs of various locations.

[0003] Traditional chiller units have some shortcomings in the evaporation process. The condenser structure design of existing chiller units is unreasonable. When the refrigerant enters the condenser tubes along the pipes, more refrigerant enters the evaporator tubes near the liquid inlet, while less refrigerant enters the condenser tubes farther from the liquid inlet. This leads to uneven distribution of refrigerant in the condenser, resulting in low condensation efficiency and affecting the overall cooling performance of the unit. At the same time, the various components of traditional chiller units are often scattered, occupying a large area, with high installation and maintenance costs. Moreover, the connecting pipes between components are long, resulting in a certain amount of cooling loss. To address these issues, an integrated evaporator screw falling film chiller unit is proposed. Utility Model Content

[0004] This utility model provides an integrated evaporative screw falling film chiller unit to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] An integrated evaporative screw falling film chiller unit includes a screw compression mechanism installed inside a fixed frame. The screw compression mechanism includes a mounting housing, a motor is fixedly connected to one side of the mounting housing, and a first gear is fixedly connected to one end of the motor shaft.

[0007] A falling film evaporation mechanism installed inside a fixed frame, the falling film evaporation mechanism including an evaporation chamber, a distributor fixedly connected to the inner wall of the evaporation chamber, and an evaporation tube fixedly connected to the bottom of the inner cavity of the distributor;

[0008] A condensation mechanism installed inside a fixed frame, the condensation mechanism including a mounting box, a cooling fan provided on one side of the inner cavity of the mounting box, and a first diversion cavity fixedly connected to the top of the inner cavity of the mounting box.

[0009] A further improvement of the present invention is that the screw compression mechanism further includes a second gear, the surface of the second gear meshing with the surface of the first gear, and a large screw fixedly connected to one side of the second gear.

[0010] A further improvement of this utility model is that: a first compression chamber is provided at the upper end of the inner cavity of the mounting housing, and a second compression chamber is provided at the lower end of the inner cavity of the mounting housing, with one end of the first compression chamber connected to one end of the second compression chamber.

[0011] A further improvement of this utility model is that: one end of the large screw is rotatably connected to the inner wall of the first compression chamber, a third gear meshes with the surface of the first gear, a small screw is fixedly connected to one side of the third gear, and one end of the small screw is rotatably connected to one end of the inner cavity of the second compression chamber.

[0012] A further improvement of the present invention is that the falling film evaporation mechanism further includes a storage tank, the inner cavity of which is connected to the interior of the evaporation chamber, an inlet is provided on one side of the upper end of the inner cavity of the evaporation chamber, an outlet is provided on one side of the lower end of the inner cavity of the evaporation chamber, and a partition plate fixedly connected to the inner wall of the evaporation chamber is provided on the surface of the lower end of the evaporation tube.

[0013] A further improvement of the present invention is that the condensation mechanism further includes a diversion port, a diversion pipe is provided on one side of the inner cavity of the diversion port, a condensation pipe is fixedly connected to the bottom of the inner cavity of the first diversion cavity, and a collection chamber is provided at the lower end of the condensation pipe.

[0014] A further improvement of this utility model is that: a connection port is provided on one side of the lower end of the inner cavity of the collection chamber, and one side of the connection port is connected to the top of the inner cavity of the evaporation chamber through a return pipe, and a throttle is provided inside the return pipe.

[0015] A further improvement of this utility model is that: one side of the inner cavity of the first compression chamber is connected to the top of the inner cavity of the storage tank through a pipe, and one side of the inner cavity of the second compression chamber is connected to the inside of the diversion port through a pipe.

[0016] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0017] This utility model provides an integrated evaporative screw falling film chiller unit. Through the setting of the condensation mechanism, during the condensation process of the refrigerant, the refrigerant first enters the distribution port. Under the guidance of the distribution port, it is evenly introduced into multiple distribution pipes with small holes on the surface. It then enters the first distribution chamber through the small holes on the surface of the multiple distribution pipes, improving the uniformity of the refrigerant when entering the condenser tube, improving the condensation effect, and thus improving the cooling effect of the chiller unit. At the same time, the use of a twin-screw compression method results in more uniform continuous compression and less pressure fluctuation, making it easier to use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a side view of the present invention.

[0020] Figure 3 This is a side view of the present invention.

[0021] Figure 4 This is a schematic diagram of the falling film evaporation mechanism of this utility model;

[0022] Figure 5 This is a schematic diagram of the screw compression mechanism of this utility model;

[0023] Figure 6 This is a schematic diagram of the condensation mechanism of this utility model;

[0024] Figure 7 This is a schematic diagram of the diversion tube structure of this utility model.

[0025] In the diagram: 11. Housing; 12. Motor; 13. First gear; 14. Second gear; 15. Large screw; 16. Third gear; 17. Small screw; 18. First compression chamber; 19. Second compression chamber; 21. Evaporation chamber; 22. Diverter; 23. Evaporation tube; 24. Storage tank; 25. Inlet; 26. Outlet; 31. Mounting box; 32. Cooling fan; 33. First diversion chamber; 34. Diversion port; 35. Diversion pipe; 36. Condenser; 37. Collection chamber; 38. Connection port; 39. Return pipe; 310. Throttling device. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to embodiments:

[0027] Example 1

[0028] like Figure 1-7As shown, this utility model provides an integrated evaporative screw falling film chiller unit, including a screw compression mechanism installed inside a fixed frame. The screw compression mechanism includes a mounting housing 11, a motor 12 fixedly connected to one side of the mounting housing 11, and a first gear 13 fixedly connected to one end of the motor 12 shaft; a falling film evaporation mechanism installed inside the fixed frame, including an evaporation chamber 21, a distributor 22 fixedly connected to the inner wall of the evaporation chamber 21, and an evaporation tube 23 fixedly connected to the bottom of the inner cavity of the distributor 22; and a condensation mechanism installed inside the fixed frame, including a mounting box 31, a cooling fan 32 provided on one side of the inner cavity of the mounting box 31, and a first distribution chamber 33 fixedly connected to the top of the inner cavity of the mounting box 31.

[0029] In this embodiment, the motor 12 drives the first gear 13 to rotate, causing the second gear 14 and the third gear 16 meshing with the first gear to rotate. Under the action of the second gear 14, the large screw 15 fixedly connected to it rotates, drawing the refrigerant in the storage tank 24 into the first compression chamber 18 along the pipeline. Subsequently, under the action of the third gear 16 driving the small screw 17 to rotate, the refrigerant is drawn from the first compression chamber 18 into the second compression chamber 19 to compress the refrigerant. The compressed refrigerant then enters the diversion port 34 along the pipeline.

[0030] Example 2

[0031] like Figure 1-7As shown, based on Embodiment 1, this utility model provides a technical solution: preferably, it includes a screw compression mechanism installed inside a fixed frame, the screw compression mechanism including a mounting housing 11, a motor 12 fixedly connected to one side of the mounting housing 11, and a first gear 13 fixedly connected to one end of the motor 12 shaft; a falling film evaporation mechanism installed inside the fixed frame, the falling film evaporation mechanism including an evaporation chamber 21, a distributor 22 fixedly connected to the inner wall of the evaporation chamber 21, and an evaporation tube 23 fixedly connected to the bottom of the inner cavity of the distributor 22; a condensation mechanism installed inside the fixed frame, the condensation mechanism including a mounting box 31, a cooling fan 32 provided on one side of the inner cavity of the mounting box 31, and a first distribution cavity 33 fixedly connected to the top of the inner cavity of the mounting box 31; the screw compression mechanism also includes a second gear 14, the surface of the second gear 14 meshing with the surface of the first gear 13; the first... A large screw 15 is fixedly connected to one side of the second gear 14. A first compression chamber 18 is provided at the upper end of the inner cavity of the mounting housing 11, and a second compression chamber 19 is provided at the lower end of the inner cavity of the mounting housing 11. One end of the first compression chamber 18 is connected to one end of the second compression chamber 19. One end of the large screw 15 is rotatably connected to the inner wall of the first compression chamber 18. A third gear 16 meshes with the surface of the first gear 13. A small screw 17 is fixedly connected to one side of the third gear 16. One end of the small screw 17 is rotatably connected to one end of the inner cavity of the second compression chamber 19. The falling film evaporation mechanism also includes a storage tank 24. The inner cavity of the storage tank 24 is connected to the interior of the evaporation chamber 21. A water inlet 25 is provided on one side of the upper end of the inner cavity of the evaporation chamber 21, and a water outlet 26 is provided on one side of the lower end of the inner cavity of the evaporation chamber 21. A partition plate is provided on the lower end of the evaporation tube 23 and is fixedly connected to the inner wall of the evaporation chamber 21.

[0032] In this embodiment, as the refrigerant flows through the evaporator tube 23, the water to be cooled enters the evaporator chamber 21 from the inlet 25. The water flows between the surface of the evaporator tube 23 and the interior of the evaporator chamber 21, indirectly contacting the refrigerant inside the evaporator tube 23. Thus, the refrigerant cools the water. The cooled water flows out from the outlet 26. The refrigerant that has absorbed heat from the water and evaporated enters the storage tank 24 and is then drawn back into the screw compressor mechanism for the next round of compression, thereby achieving continuous cooling of the water.

[0033] Example 3

[0034] like Figure 1-7As shown, based on Embodiment 1, this utility model provides a technical solution: preferably, it includes a screw compression mechanism installed inside a fixed frame, the screw compression mechanism including a mounting housing 11, a motor 12 fixedly connected to one side of the mounting housing 11, and a first gear 13 fixedly connected to one end of the motor 12 shaft; a falling film evaporation mechanism installed inside the fixed frame, the falling film evaporation mechanism including an evaporation chamber 21, a distributor 22 fixedly connected to the inner wall of the evaporation chamber 21, and an evaporation tube 23 fixedly connected to the bottom of the inner cavity of the distributor 22; and a condensation mechanism installed inside the fixed frame, the condensation mechanism including a mounting box 31, a cooling fan 32 provided on one side of the inner cavity of the mounting box 31, and a condensation fan 32 installed inside the fixed frame. The top of the inner cavity of the packaging 31 is fixedly connected to the first diversion chamber 33. The condensation mechanism also includes a diversion port 34. A diversion pipe 35 is provided on one side of the inner cavity of the diversion port 34. A condensing pipe 36 is fixedly connected to the bottom of the inner cavity of the first diversion chamber 33. A collection chamber 37 is provided at the lower end of the condensing pipe 36. A connection port 38 is provided on one side of the lower end of the inner cavity of the collection chamber 37. One side of the connection port 38 is connected to the top of the inner cavity of the evaporation chamber 21 through a return pipe 39. A throttle 310 is provided inside the return pipe 39. One side of the inner cavity of the first compression chamber 18 is connected to the top of the inner cavity of the storage tank 24 through a pipe. One side of the inner cavity of the second compression chamber 19 is connected to the inside of the diversion port 34 through a pipe.

[0035] In this embodiment, under the action of the diversion pipe 35 on one side of the inner cavity of the diversion port 34, the refrigerant enters the first diversion cavity 33 through the small holes on the surface of the diversion pipe 35, thereby improving the uniformity of the refrigerant entering the condenser tube 36 and thus improving the condensation effect. During condensation, the cooling fan 32 is started, so that the outside air is filtered by the filter plate on one side of the mounting box 31 and continuously blown onto the surface of the condenser tube 36 to cool down the refrigerant in the condenser tube 36 and condense it into a liquid. Then, the refrigerant enters the evaporation chamber 21 after being throttled by the throttling device 310 along the return pipe 39.

[0036] The working principle of this integrated evaporative screw falling film chiller unit will be explained in detail below.

[0037] like Figure 1-7As shown, during operation, motor 12 drives the first gear 13 to rotate, causing the second gear 14 and the third gear 16, which mesh with the first gear, to rotate. Under the action of the second gear 14, the large screw 15, which is fixedly connected to it, rotates, drawing the refrigerant from the storage tank 24 into the first compression chamber 18 along the pipeline. Subsequently, under the action of the third gear 16 driving the small screw 17 to rotate, the refrigerant is drawn from the first compression chamber 18 into the second compression chamber 19, where it is compressed. The compressed refrigerant then enters the distribution port 34 along the pipeline. Under the action of the distribution pipe 35 on one side of the inner cavity of the distribution port 34, the refrigerant enters the first distribution chamber 33 along the small holes on the surface of the distribution pipe 35, improving the uniformity of the refrigerant entering the condenser pipe 36, thereby improving the condensation effect. During condensation... The cooling fan 32 is started, so that the outside air is filtered by the filter plate on one side of the mounting box 31 and continuously blown onto the surface of the condenser tube 36 to cool the refrigerant in the condenser tube 36 and condense it into liquid. Then, the refrigerant enters the evaporator chamber 21 after being throttled by the throttling device 310 along the return pipe 39. When it flows through the evaporator tube 23, the water to be cooled enters the evaporator chamber 21 from the inlet 25. It flows between the surface of the evaporator tube 23 and the inside of the evaporator chamber 21 and indirectly contacts the refrigerant in the evaporator tube 23. Thus, the water to be cooled is cooled by the refrigerant. The cooled water flows out from the outlet 26. The refrigerant that has absorbed heat from the water and evaporated enters the storage tank 24 and is sucked back into the screw compressor mechanism for the next round of compression, thus achieving continuous cooling of the water.

[0038] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An integrated evaporative screw falling film chiller unit, characterized in that: include A screw compression mechanism installed inside a fixed frame, the screw compression mechanism including a mounting housing (11), a motor (12) fixedly connected to one side of the mounting housing (11), and a first gear (13) fixedly connected to one end of the shaft of the motor (12); A falling film evaporation mechanism installed inside a fixed frame, the falling film evaporation mechanism includes an evaporation chamber (21), a distributor (22) is fixedly connected to the inner wall of the evaporation chamber (21), and an evaporation tube (23) is fixedly connected to the bottom of the inner cavity of the distributor (22). A condensing mechanism installed inside a fixed frame, the condensing mechanism including a mounting box (31), a cooling fan (32) is provided on one side of the inner cavity of the mounting box (31), and a first diversion cavity (33) is fixedly connected to the top of the inner cavity of the mounting box (31).

2. The integrated evaporative screw falling film chiller unit according to claim 1, characterized in that: The screw compression mechanism further includes a second gear (14), the surface of which meshes with the surface of the first gear (13), and a large screw (15) is fixedly connected to one side of the second gear (14).

3. The integrated evaporative screw falling film chiller unit according to claim 2, characterized in that: The upper end of the inner cavity of the mounting housing (11) is provided with a first compression chamber (18), and the lower end of the inner cavity of the mounting housing (11) is provided with a second compression chamber (19). One end of the first compression chamber (18) is connected to one end of the second compression chamber (19).

4. The integrated evaporative screw falling film chiller unit according to claim 3, characterized in that: One end of the large screw (15) is rotatably connected to the inner wall of the first compression chamber (18), the surface of the first gear (13) is meshed with a third gear (16), a small screw (17) is fixedly connected to one side of the third gear (16), and one end of the small screw (17) is rotatably connected to one end of the inner cavity of the second compression chamber (19).

5. The integrated evaporative screw falling film chiller unit according to claim 1, characterized in that: The falling film evaporation mechanism also includes a storage tank (24), the inner cavity of which is connected to the interior of the evaporation chamber (21). A water inlet (25) is provided on one side of the upper end of the inner cavity of the evaporation chamber (21), and a water outlet (26) is provided on one side of the lower end of the inner cavity of the evaporation chamber (21). A partition plate fixedly connected to the inner wall of the evaporation chamber (21) is provided on the surface of the lower end of the evaporation tube (23).

6. The integrated evaporative screw falling film chiller unit according to claim 1, characterized in that: The condensation mechanism also includes a diversion port (34), a diversion pipe (35) is provided on one side of the inner cavity of the diversion port (34), a condensation pipe (36) is fixedly connected to the bottom of the inner cavity of the first diversion cavity (33), and a collection chamber (37) is provided at the lower end of the condensation pipe (36).

7. The integrated evaporative screw falling film chiller unit according to claim 6, characterized in that: A connection port (38) is provided on one side of the lower end of the inner cavity of the collection chamber (37). One side of the connection port (38) is connected to the top of the inner cavity of the evaporation chamber (21) through a return pipe (39). A throttle (310) is provided inside the return pipe (39).

8. The integrated evaporative screw falling film chiller unit according to claim 3, characterized in that: One side of the inner cavity of the first compression chamber (18) is connected to the top of the inner cavity of the storage tank (24) through a pipe, and one side of the inner cavity of the second compression chamber (19) is connected to the inside of the diversion port (34) through a pipe.

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