High-efficiency water chilling unit

Abstract

The high-efficiency water chilling unit comprises a base, a cold water tank is fixedly connected to the right side of the upper surface of the base, a connecting hole is formed in the side wall of the cold water tank, a water pump is fixedly connected to the side surface of the inner wall of the cold water tank, and a first temperature measuring instrument is fixedly connected to the side surface of the inner wall of the cold water tank. The side surface of the outer wall of the cold water tank is fixedly connected with a first temperature display instrument, the first temperature measuring instrument is fixedly connected with the first temperature display instrument through a connecting hole in the side wall of the cold water tank, and the upper surface of the cold water tank is fixedly connected with a fan. By means of the structure, the cold water tank, the condensation pipe, the first temperature measuring instrument, the water pump and the fan are arranged, so that cold water in the cold water tank can keep high flow speed and low temperature, poor heat dissipation of the condensation pipe due to high cold water temperature is avoided, and the heat exchange efficiency of the water chilling unit is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration equipment, in particular to a high-efficiency water chiller. Background Art

[0002] Chillers have the advantages of easy installation, convenient maintenance, water and land saving, and are widely used in urban rail transit, data centers, industrial plants, etc.

[0003] Refrigeration type chillers are mainly composed of water tanks, circulating water pumps, refrigeration compressors, condensers, evaporators, refrigeration controllers and other components and related control devices. During the condensation and evaporation processes, water is used as the heat exchange medium for the refrigerant, which circulates in the condenser and evaporator respectively to release the condensation heat of the refrigerant and absorb the evaporation energy. However, in practice, it is found that the heat exchange efficiency of water-cooled chillers is not high. Utility Model Content

[0004] The utility model provides a high-efficiency chiller, which can ensure the cooling effect of the chiller and improve the heat exchange efficiency of the chiller.

[0005] In order to achieve the above-mentioned purpose, a high-efficiency chiller is provided, including a base, the right side of the upper surface of the base is fixedly connected to a cold water tank, a connecting hole is arranged on the side wall of the cold water tank, a water pump is fixedly connected to the inner wall side surface of the cold water tank, a first temperature measuring instrument is fixedly connected to the inner wall side surface of the cold water tank, a first temperature display instrument is fixedly connected to the outer wall side surface of the cold water tank, the first temperature measuring instrument and the first temperature display instrument are fixedly connected through the connecting hole on the side wall of the cold water tank, and a fan is fixedly connected to the upper surface of the cold water tank. The water pump is provided to facilitate the flow of cold water in the cold water tank and diffuse the absorbed heat in time, the first temperature measuring instrument is provided to facilitate timely monitoring of the cold water temperature in the cold water tank, the temperature display instrument is provided to facilitate people to timely control the temperature of the cold water tank, and the fan is provided to facilitate lowering the temperature in the cold water tank and improve the cooling effect.

[0006] According to the high-efficiency chiller, the upper surface of the base is fixedly connected to the evaporator away from the cold water tank, the evaporator is fixedly connected to the steam inlet pipe, the end of the steam inlet pipe away from the evaporator is fixedly connected to the compressor, and the compressor is between the evaporator and the cold water tank. The steam inlet pipe is provided to facilitate the outflow of high-temperature steam, and the compressor is provided to facilitate the extraction and compression of high-temperature steam.

[0007] According to the high-efficiency chiller, the base is fixedly connected to the support plate, the upper surface of the support plate is fixedly connected to the compressor, and the lower end of the compressor is fixedly connected to the support plate by screws. The support plate is provided to facilitate the installation of the compressor, and the screws are provided to facilitate the fixed connection between the support plate and the compressor.

[0008] According to the high-efficiency chiller, the compressor output end is fixedly connected to the condenser pipe, the condenser pipe passes through the cold water tank, and the end of the condenser pipe away from the compressor is fixedly connected to the pressure reducing device. The condenser pipe is provided to facilitate cooling of the compressed high-pressure and high-temperature steam, and the pressure reducing device is provided to facilitate pressure reduction of the cooled liquid.

[0009] According to the high-efficiency chiller, the inner wall surface of the cold water tank is provided with a filter slot, and a filter element is placed in the filter slot. The filter slot is provided to facilitate the installation of the filter element, and the filter element is provided to facilitate the blocking of impurities in the cold water tank to avoid clogging the water outlet.

[0010] According to the high-efficiency chiller, a drain port is provided on the side of the outer wall of the cold water tank, and a drain switch is fixedly connected to the upper surface of the drain port. The drain port is provided to discharge the overheated water in the cold water tank, and the drain switch is provided to facilitate the control of the discharge of the water in the cold water tank.

[0011] According to the described high-efficiency chiller, the upper surface of the pressure reducing device is provided with a through hole, the middle of the pressure reducing device is fixedly connected to a pressure reducing pump, the pressure reducing pump divides the inside of the pressure reducing device into a high-pressure water chamber and a low-pressure water chamber, the condenser is connected through the high-pressure water chamber, the upper surface of the pressure reducing device is fixedly connected to a second temperature display, the second temperature display is fixedly connected to a second temperature measuring instrument through the through hole on the upper surface of the pressure reducing device, and the second temperature measuring instrument is inside the low-pressure water chamber. The pressure reducing pump is provided to facilitate the pressure reducing treatment of the high-pressure water after condensation, the second temperature measuring instrument is provided to confirm the water temperature after pressure reduction, and the second temperature display is provided to facilitate the operator to timely understand whether the water temperature after pressure reduction meets the requirements.

[0012] According to the high-efficiency chiller, the pressure reducing device is fixedly connected to the cold water return pipe away from the condenser, and one end of the cold water return pipe away from the pressure reducing device is fixedly connected to the evaporator. The cold water return pipe is provided to facilitate the cooling of the cooling water to flow back to the evaporator to cool it down again.

[0013] The beneficial effects of the utility model are as follows: by arranging a cold water tank, a condenser, a first temperature measuring instrument, a water pump and a fan, the cold water in the cold water tank can be kept at a higher flow rate and a lower temperature, thereby avoiding poor heat dissipation of the condenser due to high cold water temperature, thereby improving the heat exchange efficiency of the chiller.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 This is a first structural schematic diagram of a high-efficiency chiller of the utility model;

[0017] Figure 2 This is a second structural schematic diagram of a high-efficiency chiller of the utility model;

[0018] Figure 3 This is a cross-sectional view of a filter tank of a high-efficiency chiller of the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of a pressure reducing device of a high-efficiency chiller of the utility model;

[0020] Figure 5 The present invention is a structural diagram of an existing device for solving the technical problem mentioned in the background technology.

[0021] Legend:

[0022] 1. Base; 2. Evaporator; 3. Cold water return pipe; 4. Steam inlet pipe; 5. Compressor; 6. Screws; 7. Support plate; 8. Cold water tank; 9. Fan; 10. Water pump; 11. Condenser; 12. First temperature measuring instrument; 13. Pressure reducing device; 14. First temperature display; 15. Second temperature display; 16. Drain outlet; 17. Drain switch; 18. Filter element; 19. Filter tank; 20. Pressure reducing pump; 21. Second temperature measuring instrument; 22. High-pressure water chamber; 23. Low-pressure water chamber. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] Embodiment 1:

[0025] Reference Figure 1-4 The utility model embodiment is a high-efficiency chiller, which includes a base 1, the right side of the upper surface of the base 1 is fixedly connected to a cold water tank 8, a connecting hole is arranged on the side wall of the cold water tank 8, a water pump 10 is fixedly connected to the inner wall side surface of the cold water tank 8, a first temperature measuring instrument 12 is fixedly connected to the inner wall side surface of the cold water tank 8, a first temperature display instrument 14 is fixedly connected to the outer wall side surface of the cold water tank 8, the first temperature measuring instrument 12 and the first temperature display instrument 14 are fixedly connected through the connecting holes on the side wall of the cold water tank 8, a fan 9 is fixedly connected to the upper surface of the cold water tank 8, and the wind direction of the fan 9 is aligned with the water surface of the cold water tank 8.

[0026] The upper surface of the base 1 is fixedly connected to the evaporator 2 away from the cold water tank 8, the evaporator 2 is fixedly connected to the steam inlet pipe 4, the steam inlet pipe 4 is fixedly connected to the compressor 5 at one end away from the evaporator 2, the compressor 5 is between the evaporator 2 and the cold water tank 8, a filter groove 19 is provided on the inner wall side surface of the cold water tank 8, a filter element 18 is placed in the filter groove 19, a drain port 16 is provided on the outer wall side of the cold water tank 8, a drain switch 17 is fixedly connected to the upper surface of the drain port 16, and water can be pumped from the outside through a water pipe and injected into the cold water tank 8 after draining through the drain port 16.

[0027] The base 1 is fixedly connected to the support plate 7 , the upper surface of the support plate 7 is fixedly connected to the compressor 5 , and the lower end of the compressor 5 is fixedly connected to the support plate 7 via screws 6 .

[0028] The output end of the compressor 5 is fixedly connected to the condenser 11 , and the condenser 11 passes through the cold water tank 8 . One end of the condenser 11 away from the compressor 5 is fixedly connected to the pressure reducing device 13 .

[0029] A through hole is provided on the upper surface of the pressure reducing device 13, and a pressure reducing pump 20 is fixedly connected to the middle of the pressure reducing device 13. The pressure reducing pump 20 divides the inside of the pressure reducing device 13 into a high-pressure water chamber 22 and a low-pressure water chamber 23. The condenser 11 is through-connected with the high-pressure water chamber 22. A second temperature display 15 is fixedly connected to the upper surface of the pressure reducing device 13. The second temperature display 15 is fixedly connected to a second temperature measuring instrument 21 through the through hole on the upper surface of the pressure reducing device 13. The second temperature measuring instrument 21 is inside the low-pressure water chamber 23. The pressure reducing device 13 is fixedly connected to a cold water return pipe 3 away from the condenser 11, and one end of the cold water return pipe 3 away from the pressure reducing device 13 is fixedly connected to the evaporator 2.

[0030] Embodiment 2:

[0031] Reference Figure 5, the existing patent embodiment is a water-cooled chiller system, the application number is CN201210260472.1, which includes a high-temperature and high-pressure refrigerant gas compressed by a compressor 103 entering a water-cooled condenser 101, and exchanging heat with cooling water flowing through a heat exchange tube 102 of the condenser. On the one hand, the cooling water absorbs the condensation heat of the refrigerant and the temperature rises. On the other hand, the high-temperature and high-pressure gaseous refrigerant condenses into a low-temperature and high-pressure liquid refrigerant. After flowing out of the water-cooled condenser 101, it is throttled by a throttling device (such as an expansion valve) 104 and enters an evaporator 106 for evaporation. By exchanging heat with water flowing through a heat exchange tube 105 of the evaporator, on the one hand, the refrigerant evaporates and absorbs the heat of the chilled water, thereby reducing the water temperature of the chilled water, providing it to users and reducing the ambient temperature of use. On the other hand, the evaporated gaseous refrigerant enters the compressor 103 for cyclic compression to achieve the purpose of refrigeration.

[0032] Conclusion: In Example 1, a cold water tank 8, a condenser 11, a first temperature measuring instrument 12, a water pump 10, and a fan 9 are provided, which can keep the cold water in the cold water tank 8 at a higher flow rate and a lower temperature, and avoid poor heat dissipation of the condenser 11 due to the high cold water temperature, thereby improving the heat exchange efficiency of the chiller. At the same time, when the evaporation amount of the evaporator 2 is large, it can respond and adjust in time, so as to always maintain a high cooling efficiency. In Example 2, a pressurization, cooling, and pressure reduction mechanism are provided, which solves the technical problem of improving the cooling efficiency, but does not achieve the technical effect achieved by the scheme recorded in Example 1.

[0033] Working principle: The steam generated by the evaporator 2 is compressed by the compressor 5 into a high-temperature, high-pressure gas through the steam inlet pipe 4 and flows into the condenser 11, and then is cooled by the cold water in the cold water tank 8 into a high-pressure liquid and flows into the pressure reducing mechanism 13. The cooling water reduced to normal pressure by the pressure reducing pump 20 flows back to the evaporator 2. In this process, the water pump 10 works to increase the flow rate of the cold water in the cold water tank 8, and the fan cools down the cold water in the cold water tank 8, thereby improving the cooling efficiency. When the heat generated by the evaporator 2 is relatively large, when the temperature of the cold water in the cold water tank 8 rises to a certain limit, the drain switch 17 is turned on to drain part of the water, and at the same time, cold water is injected into the cold water tank 8 from the outside through the water pipe, so as to timely reduce the temperature in the cold water tank 8 and ensure the heat exchange efficiency of the chiller.

[0034] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A high-efficiency chiller, characterized in that: The invention comprises a base (1), wherein the right side of the upper surface of the base (1) is fixedly connected to a cold water tank (8), a connecting hole is arranged on the side wall of the cold water tank (8), a water pump (10) is fixedly connected to the inner wall side surface of the cold water tank (8), a first temperature measuring instrument (12) is fixedly connected to the inner wall side surface of the cold water tank (8), a first temperature display instrument (14) is fixedly connected to the outer wall side surface of the cold water tank (8), the first temperature measuring instrument (12) and the first temperature display instrument (14) are fixedly connected via the connecting hole on the side wall of the cold water tank (8), and a fan (9) is fixedly connected to the upper surface of the cold water tank (8).

2. A high-efficiency chiller according to claim 1, characterized in that: The upper surface of the base (1) is fixedly connected to the evaporator (2) away from the cold water tank (8), the evaporator (2) is fixedly connected to the steam inlet pipe (4), and the end of the steam inlet pipe (4) away from the evaporator (2) is fixedly connected to the compressor (5), and the compressor (5) is between the evaporator (2) and the cold water tank (8).

3. A high-efficiency chiller according to claim 1, characterized in that: The base (1) is fixedly connected to a support plate (7), the upper surface of the support plate (7) is fixedly connected to a compressor (5), and the lower end of the compressor (5) is fixedly connected to the support plate (7) via screws (6).

4. A high-efficiency chiller according to claim 2, characterized in that: The output end of the compressor (5) is fixedly connected to a condenser (11), the condenser (11) passes through a cold water tank (8), and one end of the condenser (11) away from the compressor (5) is fixedly connected to a pressure reducing device (13).

5. A high-efficiency chiller according to claim 1, characterized in that: The inner wall side surface of the cold water tank (8) is provided with a filter groove (19), and a filter element (18) is placed in the filter groove (19).

6. A high-efficiency chiller according to claim 1, characterized in that: A drainage port (16) is provided on the side of the outer wall of the cold water tank (8), and a drainage switch (17) is fixedly connected to the upper surface of the drainage port (16).

7. A high-efficiency chiller according to claim 4, characterized in that: A through hole is provided on the upper surface of the pressure reducing device (13); a pressure reducing pump (20) is fixedly connected in the middle of the pressure reducing device (13); the pressure reducing pump (20) divides the interior of the pressure reducing device (13) into a high-pressure water chamber (22) and a low-pressure water chamber (23); the condenser (11) is through-connected to the high-pressure water chamber (22); a second temperature display (15) is fixedly connected to the upper surface of the pressure reducing device (13); the second temperature display (15) is fixedly connected to a second temperature measuring instrument (21) through the through hole on the upper surface of the pressure reducing device (13); and the second temperature measuring instrument (21) is inside the low-pressure water chamber (23).

8. A high-efficiency chiller according to claim 4, characterized in that: The pressure reducing device (13) is fixedly connected to the cold water return pipe (3) away from the condenser (11), and one end of the cold water return pipe (3) away from the pressure reducing device (13) is fixedly connected to the evaporator (2).

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