Integrated chiller unit with natural cooling source

Abstract

This invention belongs to the technical field of chiller units, specifically an integrated chiller unit with a natural cold source. It includes a compressor, a condenser fixedly connected to one side of the compressor's outer wall via a pipe, a dryer filter fixedly connected to one side of the condenser's outer wall via a pipe, an evaporator fixedly connected to one end of the dryer filter's outer wall via a pipe, and a plate heat exchanger fixedly connected to one side of the evaporator's outer wall via a pipe. By integrating the dryer and plate heat exchanger, this invention allows the compressor to be completely shut off in low-temperature winter environments. The dryer absorbs ambient cold, and the plate heat exchanger directly cools the chilled water. In this mode, cooling energy consumption is significantly reduced, solving the problem of high energy consumption in winter for traditional units. In summer, the dryer provides cooling water to the condenser; in winter, the plate heat exchanger activates its heat exchange function, achieving efficient energy utilization and improving the overall system energy efficiency ratio.

Description

Technical Field

[0001] This utility model relates to the field of chiller technology, and in particular to an integrated chiller unit with a natural cooling source. Background Technology

[0002] A chiller is a device that transfers heat from a low-temperature heat source to a high-temperature heat source through a refrigeration cycle system. It is widely used in industrial cooling and air conditioning systems. Its core components include a compressor, condenser, evaporator, and expansion valve, and it achieves its cooling effect through the phase change process of the refrigerant.

[0003] However, traditional chiller units have drawbacks when operating in winter: when the ambient temperature is low, the compressor still needs to be started for cooling, resulting in high energy consumption. This is because traditional designs fail to fully utilize the potential of natural cooling sources (such as low-temperature ambient air), causing energy waste and contradicting the trend of energy conservation and environmental protection.

[0004] 1. High energy consumption: In low-temperature winter environments, the compressor still needs to run continuously and cannot utilize natural cold sources, resulting in low cooling efficiency and increased energy consumption.

[0005] 2. Limited functionality: It lacks a design that integrates with natural cold sources, cannot switch cooling modes according to ambient temperature, and has insufficient system flexibility. Utility Model Content

[0006] In view of the shortcomings of the existing technology, this utility model provides an integrated chiller unit with natural cold source, which overcomes the shortcomings of the existing technology and effectively solves the problems of high energy consumption and single function.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An integrated chiller unit with a natural cooling source includes a compressor. A condenser is fixedly connected to one side of the compressor's outer wall via a pipe, and a dryer filter is fixedly connected to one side of the condenser's outer wall via a pipe. An evaporator is fixedly connected to one end of the dryer filter's outer wall via a pipe. A plate heat exchanger is fixedly connected to one side of the evaporator's outer wall via a pipe, and a dry cooler is fixedly connected to one side of the plate heat exchanger's outer wall via a pipe. Both the dry cooler and the plate heat exchanger are fixedly connected to the condenser.

[0009] The compressor and the dryer filter are connected by a pipe, and the pipe between the compressor and the dryer filter is interconnected with the pipe between the dryer filter and the evaporator.

[0010] Preferably, an angle valve is installed on the outer wall of the pipe between the condenser and the dryer filter.

[0011] Preferably, a ball valve, a sight glass, and an electronic expansion valve are respectively installed on the outer wall of the pipe between the dryer filter and the evaporator.

[0012] Preferably, a solenoid valve is installed on the outer wall of the pipe between the compressor and the dryer filter.

[0013] Preferably, a first electric butterfly valve and a second electric butterfly valve are respectively installed on the outer wall of the pipe between the plate heat exchanger and the condenser, wherein the first electric butterfly valve is closer to the side of the dry cooler and the second electric butterfly valve is closer to the side of the plate heat exchanger.

[0014] Preferably, a third electric butterfly valve and a fourth electric butterfly valve are installed on the outer wall of the pipe between the evaporator and the plate heat exchanger, respectively.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. The integrated chiller unit with natural cold source designed in this way can completely shut down the compressor in low-temperature winter environments by integrating a dry cooler and a plate heat exchanger. The dry cooler absorbs the ambient cold and the plate heat exchanger directly cools the chilled water. In this mode, the cooling energy consumption is significantly reduced, which solves the problem of high energy consumption of traditional units in winter.

[0017] 2. The integrated chiller unit with natural cooling source designed in this project can automatically switch between summer compressor cooling mode and winter natural cooling source mode through the coordinated control of the first electric butterfly valve, the second electric butterfly valve, the third electric butterfly valve, the fourth electric butterfly valve and the solenoid valve. In summer, the dry cooler provides cooling water to the condenser, and in winter, the plate heat exchanger turns on the heat exchange function to achieve efficient energy utilization and improve the overall energy efficiency ratio of the system. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the integrated chiller unit with natural cold source proposed in this utility model.

[0019] Figure 2 This is an enlarged structural diagram of the compressor of the integrated chiller unit with natural cold source proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of the integrated chiller unit with natural cold source proposed in this utility model.

[0021] In the diagram: 1. Compressor; 2. Condenser; 3. Dryer filter; 4. Evaporator; 5. Plate heat exchanger; 6. Dry cooler; 7. Angle valve; 8. Ball valve; 9. Sight glass; 10. Electronic expansion valve; 11. Solenoid valve; 12. First electric butterfly valve; 13. Second electric butterfly valve; 14. Third electric butterfly valve; 15. Fourth electric butterfly valve. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-3 Example 1: An integrated chiller unit with a natural cooling source includes a compressor 1. A condenser 2 is fixedly connected to one side of the outer wall of the compressor 1 via a pipe. A dryer filter 3 is fixedly connected to one side of the outer wall of the condenser 2 via a pipe. An evaporator 4 is fixedly connected to one end of the outer wall of the dryer filter 3 via a pipe. A plate heat exchanger 5 is fixedly connected to one side of the outer wall of the evaporator 4 via a pipe. A dry cooler 6 is fixedly connected to one side of the outer wall of the plate heat exchanger 5 via a pipe. Both the dry cooler 6 and the plate heat exchanger 5 are fixedly connected to the condenser 2.

[0024] In this embodiment, by integrating the dry cooler 6 and the plate heat exchanger 5, the compressor 1 can be completely shut down in low-temperature winter environments. The dry cooler 6 absorbs ambient cold and the plate heat exchanger 5 directly cools the chilled water. In this mode, the cooling energy consumption is significantly reduced, solving the problem of high energy consumption in traditional units during winter.

[0025] In Example 2, the compressor 1 and the dryer filter 3 are connected by a pipe, and the pipe between the compressor 1 and the dryer filter 3 is interconnected with the pipe between the dryer filter 3 and the evaporator 4. A ball valve 8, a sight glass 9 and an electronic expansion valve 10 are respectively installed on the outer wall of the pipe between the dryer filter 3 and the evaporator 4.

[0026] In this embodiment, through the coordinated control of the first electric butterfly valve 12, the second electric butterfly valve 13, the third electric butterfly valve 14, the fourth electric butterfly valve 15 and the solenoid valve 11, the system can automatically switch between the summer compressor 1 cooling mode and the winter natural cold source mode. In summer, the dry cooler 6 provides cooling water to the condenser 2, and in winter, the plate heat exchanger 5 turns on the heat exchange function to achieve efficient use of energy and improve the overall energy efficiency ratio of the system.

[0027] An angle valve 7 is installed on the outer wall of the pipe between the condenser 2 and the dryer filter 3, and a solenoid valve 11 is installed on the outer wall of the pipe between the compressor 1 and the dryer filter 3.

[0028] A first electric butterfly valve 12 and a second electric butterfly valve 13 are respectively installed on the outer wall of the pipe between the plate heat exchanger 5 and the condenser 2. The first electric butterfly valve 12 is closer to the side of the dry cooler 6, and the second electric butterfly valve 13 is closer to the side of the plate heat exchanger 5. A third electric butterfly valve 14 and a fourth electric butterfly valve 15 are respectively installed on the outer wall of the pipe between the evaporator 4 and the plate heat exchanger 5.

[0029] Example 3, Summer Operation Mode: Compressor 1 starts, and after the refrigerant releases heat through condenser 2, it enters evaporator 4 through dryer filter 3 and electronic expansion valve 10 to absorb heat and cool. Dryer refrigeration unit 6 starts to provide cooling water to condenser 2. At this time, the first electric butterfly valve 12 and the second electric butterfly valve 13 are opened, and the third electric butterfly valve 14 and the fourth electric butterfly valve 15 are closed to ensure that plate heat exchanger 5 does not participate in the refrigeration cycle.

[0030] Winter operation mode: Compressor 1 stops, solenoid valve 11 closes the refrigerant circulation. Dry cooler 6 absorbs ambient cold, cooling water exchanges heat with chilled water via plate heat exchanger 5, and third electric butterfly valve 14 and fourth electric butterfly valve 15 open to achieve natural cold source cooling.

[0031] Valve control: Angle valve 7 and ball valve 8 are used to regulate pipeline flow, sight glass 9 monitors refrigerant status, and electronic expansion valve 10 precisely controls refrigerant flow to ensure stable system operation.

[0032] Seasonal transition: The system automatically selects the operating mode based on the ambient temperature feedback from the temperature sensor. The first electric butterfly valve 12, the second electric butterfly valve 13, the third electric butterfly valve 14, and the fourth electric butterfly valve 15 dynamically adjust the pipeline on / off to achieve seamless switching.

[0033] Working principle:

[0034] The unit operates in two modes:

[0035] I. Summer Compressor 1 Cooling Mode: The refrigerant flows sequentially through compressor 1, condenser 2, dryer filter 3, and evaporator 4, forming a closed loop. The dryer cooler 6 assists condenser 2 in heat dissipation, and the first electric butterfly valve 12 and the second electric butterfly valve 13 control the cooling water circuit.

[0036] II. Natural cooling source mode in winter: Compressor 1 is shut down, the cooling water of dry cooler 6 exchanges heat with chilled water through plate heat exchanger 5, and the third electric butterfly valve 14 and the fourth electric butterfly valve 15 are opened to form an independent cooling circuit.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An integrated natural cold source water chiller comprising a compressor (1), characterized in that, A condenser (2) is fixedly connected to one side of the outer wall of the compressor (1) via a pipe, and a dryer filter (3) is fixedly connected to one side of the outer wall of the condenser (2) via a pipe. An evaporator (4) is fixedly connected to one end of the outer wall of the dryer filter (3) via a pipe. A plate heat exchanger (5) is fixedly connected to one side of the outer wall of the evaporator (4) via a pipe, and a dry cooler (6) is fixedly connected to one side of the outer wall of the plate heat exchanger (5) via a pipe. Both the dry cooler (6) and the plate heat exchanger (5) are fixedly connected to the condenser (2). The compressor (1) and the dryer filter (3) are connected by a pipe, and the pipe between the compressor (1) and the dryer filter (3) is interconnected with the pipe between the dryer filter (3) and the evaporator (4).

2. The integrated natural-cooling water chiller of claim 1, wherein, An angle valve (7) is installed on the outer wall of the pipe between the condenser (2) and the dryer filter (3).

3. The integrated natural-cooling water chiller of claim 1, wherein, A ball valve (8), a sight glass (9), and an electronic expansion valve (10) are respectively installed on the outer wall of the pipe between the dryer filter (3) and the evaporator (4).

4. The integrated natural-cooling water chiller of claim 1, wherein, A solenoid valve (11) is installed on the outer wall of the pipe between the compressor (1) and the dryer filter (3).

5. The integrated natural-cooling water chiller of claim 1, wherein, A first electric butterfly valve (12) and a second electric butterfly valve (13) are respectively installed on the outer wall of the pipe between the plate heat exchanger (5) and the condenser (2). The first electric butterfly valve (12) is closer to the side of the dry cooler (6), and the second electric butterfly valve (13) is closer to the side of the plate heat exchanger (5).

6. The integrated chiller unit with natural cooling source according to claim 1, characterized in that, A third electric butterfly valve (14) and a fourth electric butterfly valve (15) are respectively installed on the outer wall of the pipe between the evaporator (4) and the plate heat exchanger (5).

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