Efficient evaporation refrigeration water tank

Abstract

The utility model discloses an efficient evaporation refrigeration water tank, which belongs to the technical field of refrigeration water tanks and is characterized by comprising a water tank, a water inlet pipe and a water outlet pipe are arranged on the water tank, a pre-cooling coil and an evaporation coil are arranged on the outer side of the water tank in a surrounding manner, and the evaporation coil is used for reducing the temperature of the pre-cooling coil and the water tank. A water outlet of the pre-cooling coil pipe is connected to a water inlet pipe of the water tank, and when water is supplemented, water flows through the pre-cooling coil pipe from a water inlet of the pre-cooling coil pipe and then enters the water tank from the water inlet pipe; the pre-cooling device has the advantages that water flow firstly flows through the pre-cooling coil to be cooled for the first time, then the water flow enters the water tank to be cooled for the second time, the heat exchange efficiency is improved, the temperature of cold water can be more uniform, and the cold water using requirement of a user is met.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration water tanks, and more specifically to a high-efficiency evaporative refrigeration water tank. Background Art

[0002] Water dispensers have been basically popularized in everyone's daily life, especially in summer, the demand for cold water is becoming more and more common, and at the same time, they also pursue low energy consumption, high efficiency and other characteristics to achieve a better experience. The refrigeration water tank of the traditional compressor refrigeration water dispenser, such as Figure 1 As shown, it is a method of winding multiple turns of evaporation coils on the outside of the water tank in a single layer, or as shown in Figure 2 As shown, the evaporator coil is directly immersed in the cold tank.

[0003] The first method is to transfer the cold air to the wall of the water tank and then transfer it to the water in the water tank for cooling. In the second method, although the evaporator coil is in direct contact with the water, the evaporator coil is designed as a double-layer tube for safety reasons. Both methods are indirect heat exchange and cooling. Because the water in the water tank is still, the water heat transfer effect is uneven, there is a significant temperature difference, the heat exchange method is inefficient and slow; and when the user collects water, the subsequent normal temperature water directly enters the water tank, causing the water temperature in the water tank to rise sharply, and the cold water experience is poor. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a high-efficiency evaporative refrigeration water tank, which has the advantage that the water first flows through the pre-cooling coil for a primary cooling, and then the water flows into the water tank for a secondary cooling, which not only improves the heat exchange efficiency, but also makes the cold water temperature more uniform, thereby meeting the user's cold water usage needs.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A high-efficiency evaporative refrigeration water tank comprises a water tank, characterized in that: a water inlet pipe and a water outlet pipe are arranged on the water tank, a precooling coil and an evaporating coil are arranged around the outside of the water tank, the evaporating coil is used to reduce the temperature of the precooling coil and the water tank, the water outlet of the precooling coil is connected to the water inlet pipe of the water tank, and when replenishing water, water flows from the water inlet of the precooling coil through the precooling coil and enters the water tank from the water inlet pipe.

[0007] The utility model is further configured as follows: the evaporating coil is arranged around the outside of the water tank, the precooling coil is arranged around the outside of the evaporating coil, and the evaporating coil and the precooling coil extend from the bottom end to the top end of the side wall of the water tank.

[0008] The utility model is further configured as follows: the water inlet of the precooling coil and the air outlet of the evaporating coil are located at the same end, and the water outlet of the precooling coil and the liquid inlet of the evaporating coil are located at the same end.

[0009] The utility model is further configured as follows: the water inlet pipe extends from the bottom of the water tank into the water tank and extends to the top of the water tank.

[0010] The utility model is further configured as follows: a temperature sensor is arranged on the precooling coil.

[0011] The utility model is further configured as follows: the precooling coil is made of stainless steel.

[0012] The utility model is further configured as follows: the water tank, the evaporating coil and the precooling coil are fixed by casting with aluminum blocks.

[0013] The utility model is further configured as follows: the outer side of the aluminum block is coated with a heat-insulating layer.

[0014] Compared with the prior art, the utility model has at least the following advantages:

[0015] 1. The refrigerant in the evaporator coil absorbs heat through evaporation to lower the water temperature in the pre-cooling coil and the water tank. When the water tank is replenished with water, the water first flows through the pre-cooling coil for a cooling process, and then the water flows into the water tank for a secondary cooling process to avoid a sudden rise in the water temperature in the water tank. At the same time, the water in the water tank can be turbulent when the water enters, so that the water temperature at different positions is basically consistent, which not only improves the heat exchange efficiency, but also makes the cold water temperature more uniform, meeting the user's cold water usage needs.

[0016] 2. The inlet and outlet of the precooling coil and the evaporating coil are set oppositely, so that the flow paths of the precooling coil and the evaporating coil form reverse cross heat exchange, which greatly improves the heat exchange efficiency.

[0017] 3. By installing a temperature sensor on the pre-cooling coil, the temperature of the pre-cooling coil can be monitored in real time to prevent internal joints and avoid blockage of the pre-cooling coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of a water tank with an externally wound evaporation coil in the prior art;

[0019] Figure 2 It is a schematic diagram of a water tank in the prior art in which an evaporation coil is immersed;

[0020] Figure 3 It is an overall schematic diagram of this embodiment;

[0021] Figure 4 is a cross-sectional view of this embodiment.

[0022] Description of reference numerals:

[0023] 1. Insulation layer; 2. Precooling coil; 3. Evaporating coil; 4. Water tank; 5. Aluminum block; 6. Water inlet; 7. Water outlet; 8. Water inlet pipe; 9. Water outlet pipe; 10. Liquid inlet; 11. Air outlet; 12. Through hole; 13. Fixing bolts. DETAILED DESCRIPTION

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0025] A high efficiency evaporative cooling water tank, such as Figure 3 and Figure 4 As shown, it includes a water tank 4, on which a water inlet pipe 8 and a water outlet pipe 9 are arranged, and a precooling coil 2 and an evaporating coil 3 are arranged around the outside of the water tank 4. The evaporating coil 3 is used to reduce the temperature of the precooling coil 2 and the water tank 4. The water outlet 7 of the precooling coil 2 is connected to the water inlet pipe 8 of the water tank 4. When replenishing water, water flows from the water inlet 6 of the precooling coil 2 through the precooling coil 2 and enters the water tank 4 from the water inlet pipe 8.

[0026] The water tank 4, the evaporating coil 3 and the precooling coil 2 are cast and fixed by the aluminum block 5, which are the water tank 4, the evaporating coil 3 and the precooling coil 2 from the inside to the outside respectively. The aluminum block 5 covers the surrounding side wall. The evaporating coil 3 is arranged around the outside of the water tank 4, and the precooling coil 2 is arranged around the outside of the evaporating coil 3. The evaporating coil 3 and the precooling coil 2 extend from the bottom end to the top end of the side wall of the water tank 4.

[0027] Considering the high temperature of the casting process and the hygienic safety of the drinking water, the precooling coil 2 is made of stainless steel material with a high melting point and food safety.

[0028] The water inlet 6 of the precooling coil 2 and the air outlet 11 of the evaporating coil 3 are located at the same end, the water outlet 7 of the precooling coil 2 and the liquid inlet 10 of the evaporating coil 3 are located at the same end, the water inlet 6 of the precooling coil 2 is located at the bottom of the water tank 4, the water outlet 7 is located at the top of the water tank 4, the liquid inlet 10 of the evaporating coil 3 is located at the top of the water tank 4, and the air outlet 11 is located at the bottom of the water tank 4.

[0029] When the user receives water, the supplementary normal temperature water flows in from the water inlet 6 of the precooling coil 2, flows through the precooling coil 2 to complete precooling and flows out from the water outlet 7, and the low-temperature refrigerant flows in from the liquid inlet 10 of the evaporating coil 3. The low-temperature refrigerant absorbs heat when evaporating, and then absorbs the heat in the water tank 4 and the precooling coil 2 to achieve cooling. The evaporated gas flows out from the gas outlet 11. The flow paths of the precooling coil 2 and the evaporating coil 3 are opposite, forming countercurrent cross heat exchange, and the heat exchange efficiency is greatly improved.

[0030] The water inlet pipe 8 extends from the bottom of the water tank 4 into the water tank 4 and extends to the top of the water tank 4. The water flowing out from the water outlet 7 of the pre-cooling coil 2 is transported to the top of the water tank 4 by the water inlet pipe 8, causing turbulence in the water in the water tank 4 to make the water temperature at different positions more uniform. The water outlet pipe 9 is located at the bottom of the water tank 4. When the user receives water, the cold water at the bottom of the water tank 4 that has been cooled for a long time always flows out first, thereby meeting the user's water demand.

[0031] A temperature sensor is provided on the precooling coil 2. The main body of the temperature sensor is installed at the bottom of the aluminum block 5. A through hole 12 is opened on the aluminum block 5. The temperature sensing probe of the temperature sensor extends from the through hole 12 into the aluminum block 5 and contacts the precooling coil 2 to detect the temperature of the precooling coil 2. When the temperature sensing probe detects that the temperature drops to the set protection temperature, the refrigeration system stops running and the water tank 4 enters the insulation state.

[0032] A fixing bolt 13 is provided at the bottom of the water tank 4 , and the water tank 4 is installed on the water dispenser system through the fixing bolt 13 . The fixing bolt 13 is threadedly connected, and the installation and removal are achieved by rotating the water tank 4 .

[0033] Furthermore, an insulation layer 1 is coated on the outside of the aluminum block 5 for insulation, specifically a polyurethane foam insulation layer 1 is used, the water inlet 6 and the water outlet 7 of the precooling coil 2 pass through the side walls of the aluminum block 5 and the insulation layer 1, the liquid inlet 10 and the air outlet 11 of the evaporating coil 3 pass through the side walls of the aluminum block 5 and the insulation layer 1, and the water inlet pipe 8, the water outlet pipe 9 and the fixing bolts 13 at the bottom of the water tank 4 pass through the insulation layer 1.

[0034] The working process of the utility model is as follows:

[0035] The low-temperature refrigerant flows in from the liquid inlet 10 of the evaporating coil 3, absorbs the surrounding heat during the evaporation process, and reduces the temperature of the precooling coil 2 and the water tank 4. Normal-temperature water flows in from the water inlet 6 of the precooling coil 2. After passing through the precooling coil 2, the normal-temperature water completes the primary cooling, and then flows into the water tank 4 from the water inlet pipe 8 for the secondary cooling. The temperature sensor detects the temperature of the precooling coil 2 in real time. When the temperature drops to the set protection temperature, the refrigeration system stops running.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-efficiency evaporative refrigeration water tank, comprising a water tank, characterized in that: The water tank is provided with a water inlet pipe and a water outlet pipe, and a precooling coil and an evaporating coil are arranged around the outside of the water tank. The evaporating coil is used to reduce the temperature of the precooling coil and the water tank. The water outlet of the precooling coil is connected to the water inlet pipe of the water tank. When replenishing water, water flows from the water inlet of the precooling coil through the precooling coil and enters the water tank from the water inlet pipe.

2. A high-efficiency evaporative cooling water tank according to claim 1, characterized in that: The evaporating coil is disposed around the outside of the water tank, and the precooling coil is disposed around the outside of the evaporating coil. The evaporating coil and the precooling coil extend from the bottom end to the top end of the side wall of the water tank.

3. A high-efficiency evaporative cooling water tank according to claim 2, characterized in that: The water inlet of the precooling coil and the air outlet of the evaporating coil are located at the same end, and the water outlet of the precooling coil and the liquid inlet of the evaporating coil are located at the same end.

4. The high-efficiency evaporative cooling water tank according to claim 1, characterized in that: The water inlet pipe extends from the bottom of the water tank into the water tank and extends to the top of the water tank.

5. The high-efficiency evaporative cooling water tank according to claim 1, characterized in that: The precooling coil is provided with a temperature sensor.

6. The high-efficiency evaporative cooling water tank according to claim 1, characterized in that: The precooling coil is made of stainless steel.

7. The high-efficiency evaporative cooling water tank according to claim 1, characterized in that: The water tank, evaporating coil and precooling coil are fixed by casting with aluminum blocks.

8. The high-efficiency evaporative cooling water tank according to claim 7, characterized in that: The outer side of the aluminum block is coated with a heat-insulating layer.

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