Water cooler

Abstract

The invention provides a cooling-water machine which comprises a water pipe and an evaporation pipe, and the water pipe comprises a spiral part which is spirally coiled into a barrel shape; and the evaporation pipe is also spirally coiled into the barrel shape, and the evaporation pipe which is spirally coiled into the barrel shape is arranged on the inner side of the spiral part of the water pipe. The water pipe and the evaporation pipe are both arranged in a spiral shape and sleeved with each other, installation is easy, and cost is low.

Description

Technical Field

[0001] This invention relates to the field of refrigeration equipment technology, and more particularly to a chiller. Background Technology

[0002] To achieve instantaneous chilled water supply, the primary challenge is how to rapidly transfer the cooling capacity of the refrigeration pipes to the water. Currently, the most effective method is to use a shell-and-tube heat exchanger, employing a double-layered pipe system with refrigerant running in the inner layer and water in the outer layer. This maximizes heat transfer efficiency by separating the refrigerant and water only by a single pipe wall. However, shell-and-tube heat exchangers are complex to manufacture, costly, and their reliability is difficult to guarantee. Summary of the Invention

[0003] The purpose of this invention is to provide a chiller in which both the evaporator and water pipes are arranged in a spiral shape, and the water pipes are sleeved outside the evaporator for heat exchange, thus solving the problems of complex and costly double-layer pipeline instant cooling process in the prior art.

[0004] To achieve one of the above-mentioned objectives, one embodiment of the present invention provides a chiller, comprising:

[0005] Water pipe, including a spiral portion that is spirally coiled into a cylindrical shape;

[0006] The evaporator tube is also spirally coiled into a cylindrical shape, and the spirally coiled evaporator tube is located inside the spiral portion of the water pipe.

[0007] As a further improvement of one embodiment of the present invention, it also includes a hollow cooling cylinder disposed between the spiral portion and the evaporator tube, wherein the inner wall of the cooling cylinder is provided with a first spiral groove, and the evaporator tube is disposed within the first spiral groove.

[0008] As a further improvement of one embodiment of the present invention, the outer wall of the cooling cylinder is provided with a second spiral groove, and the spiral part is disposed in the second spiral groove.

[0009] As a further improvement of one embodiment of the present invention, the cross-sections of the first spiral groove and the second spiral groove are both semi-circular, the radius of the cross-section of the first spiral groove matches the radius of the evaporator tube, and the radius of the cross-section of the second spiral groove matches the radius of the spiral portion.

[0010] As a further improvement of one embodiment of the present invention, in the length direction of the cooling cylinder, the distance between adjacent spiral portions does not exceed 1 mm, and the distance between adjacent evaporation tubes does not exceed 1 mm.

[0011] As a further improvement of one embodiment of the present invention, it also includes a water tank, which is provided with a water storage cavity and a water outlet communicating with the water storage cavity, and the water pipe also includes a connecting part that is connected to the spiral shape, and the connecting part is connected to the water outlet.

[0012] As a further improvement of one embodiment of the present invention, the water tank is also provided with an exhaust port, which is located on the top of the water tank.

[0013] As a further improvement of one embodiment of the present invention, the top end of the spiral portion is not higher than the bottom end of the water tank.

[0014] As a further improvement of one embodiment of the present invention, it also includes a water pump disposed in the communicating portion, the water pump pressurizing and transporting water in the water storage chamber to the spiral portion, or pressurizing and transporting water in the spiral portion to the water storage chamber.

[0015] As a further improvement of one embodiment of the present invention, the spiral portion and the liquid flow direction in the evaporator tube are consistent in the spiral extension direction of the evaporator tube.

[0016] One or more technical solutions provided by this invention have at least the following technical effects or advantages:

[0017] The chiller provided by this invention has both the evaporator tube and the water tube spirally wound into a cylindrical shape, and the cylindrical structure formed by the evaporator tube is set inside the cylindrical structure formed by the spiral part, so that the refrigerant and water are separated by two layers of walls, which has high heat exchange efficiency and simple process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the chiller in an embodiment of the present invention.

[0019] Figure 2 yes Figure 1 A top view of a medium-cooled water chiller.

[0020] Figure 3 yes Figure 2 Schematic diagram of cross section along line AA.

[0021] Figure 4 yes Figure 3 Enlarged view of point B in the middle.

[0022] 1. Water pipe; 11. Spiral part; 12. Connecting part; 2. Evaporator pipe; 3. Cooling cylinder; 31. First spiral groove; 32. Second spiral groove; 4. Water tank; 41. Water outlet; 42. Exhaust port; 43. Water inlet; 5. Water pump. Detailed Implementation

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0024] The terms used in this document, such as “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” indicating spatial relative positions, are used for illustrative purposes to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. The terms “spatial relative positions” may be intended to include different orientations of the equipment in use or operation other than those shown in the figures.

[0025] For example, if the device in the figure is flipped, a unit described as being "below" or "under" other units or features will be "above" other units or features. Therefore, the exemplary term "below" can encompass both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or otherwise) and the spatially related descriptive terms used herein will be interpreted accordingly.

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0027] Furthermore, it should be understood that although the terms "first," "second," etc., may be used herein to describe various elements or structures, the objects being described should not be limited by these terms. These terms are only used to distinguish these objects from one another. For example, a first helical groove may be referred to as a second helical groove, and similarly, a second helical groove may be referred to as a first helical groove, without departing from the scope of protection of this application.

[0028] This invention provides a chiller, such as... Figure 1 As shown, it includes a water pipe 1 and an evaporation pipe 2. The water pipe 1 includes a spiral portion 11 that is spirally coiled into a cylindrical shape. The evaporation pipe 2 is also spirally coiled into a cylindrical shape and is located inside the spiral portion 11 of the water pipe 1.

[0029] The chiller provided in this embodiment of the invention sets the spiral portion 11 of the evaporator tube 2 and the water pipe 1, which is close to the evaporator tube 2, into a spiral shape. The spiral portion 11 is coiled into a hollow cylindrical shape with a certain wall thickness (i.e., the diameter of the evaporator tube 2 or the spiral portion 11). The cylindrical structure formed by the evaporator tube 2 is set inside the cylindrical structure formed by the spiral portion 11 of the water pipe 1, so that the two are nested together. The evaporator tube 2 located on the inner side cools the water pipe 1 located on the outer side. The structure is simple and the installation is simple.

[0030] Preferably, in the length direction of the cylindrical structure formed by the spiral portion 11, a slit is formed on the inner side of adjacent spiral portions 11. Since the spiral portion 11 is spirally coiled, the slit formed on the inner side of the spiral portion 11 is also spiral. The evaporator tube 2 is disposed in the slit formed on the inner side of the spiral portion 11, so that the spiral portion 11 and the evaporator tube 2 are mutually restrained in the radial and axial directions of the cylindrical structure, so that the spiral portion 11 and the evaporator tube 2 are installed more tightly, thereby improving the cold energy transfer effect.

[0031] Furthermore, the chiller also includes a hollow cooling cylinder 3 disposed between the spiral section 11 and the evaporator tube 2. The inner wall of the cooling cylinder 3 is provided with a first spiral groove 31, and the evaporator tube 2 is disposed in the first spiral groove 31.

[0032] A cooling cylinder 3 is provided between the spiral section 11 and the evaporator tube 2, and a first spiral groove 31 is provided on the inner wall of the cooling cylinder 3 so that the evaporator tube 2 is disposed in the first spiral groove 31. On the one hand, the cooling cylinder 3 can provide support between the spiral section 11 and the evaporator tube 2. On the other hand, the evaporator tube 2 is disposed in the first spiral groove 31, which increases the contact area between the evaporator tube 2 and the cooling cylinder 3, that is, increases the area of ​​cold energy transfer, thereby increasing the efficiency of cold energy transfer.

[0033] Furthermore, the outer wall of the cooling cylinder 3 is provided with a second spiral groove 32, and the spiral part 11 is disposed in the second spiral groove 32.

[0034] The second spiral groove 32 increases the contact area between the spiral part 11 and the cooling cylinder 3, further increasing the efficiency of cold energy transfer.

[0035] Preferably, the cross-sections of the first spiral groove 31 and the second spiral groove 32 are both semi-circular. The radius of the cross-section of the first spiral groove 31 matches the radius of the evaporator tube 2, and the radius of the cross-section of the second spiral groove 32 matches the radius of the spiral part 11.

[0036] The radius of the cross-section of the first spiral groove 31 matches the radius of the evaporator tube 2, allowing the evaporator tube 2 to fit snugly against the first spiral groove 31. The cooling energy from the evaporator tube 2 is directly transferred to the cooling cylinder 3 without passing through an air layer, thus reducing cooling energy loss caused by the air layer. Similarly, the radius of the cross-section of the second spiral groove 32 matches the radius of the spiral section 11, allowing the cooling energy from the evaporator tube 2 to be directly transferred to the water pipe 1 without passing through an air layer, also reducing cooling energy loss caused by the air layer.

[0037] More preferably, in the length direction of the cooling cylinder 3, the distance between adjacent spiral portions 11 does not exceed 1 mm, and the distance between adjacent evaporation tubes 2 does not exceed 1 mm.

[0038] Along the length of the cooling cylinder 3, the evaporator tube 2 and the spiral part 11 are wound around the inside and outside of the cooling cylinder 3 as much as possible, so that the cooling and heat conduction area of ​​the cooling cylinder 3 is large and uniform, and prevents the segmented situation of cooling-uncooled-cooled in the length of the cooling cylinder 3.

[0039] In some embodiments, the chiller further includes a water tank 4, which is provided with a water storage chamber and a water outlet 41 communicating with the water storage chamber. The water pipe 1 also includes a connecting part 12 that is spirally connected to the water outlet 41.

[0040] Water pipe 1 supplies water through water tank 4. One end of connecting part 12 is connected to spiral part 11, and the other end is connected to water outlet 41 of water tank 4. Water in water tank 4 flows through water outlet 41 to connecting part 12, and then to spiral part 11 to exchange heat with evaporator 2. This allows the water flowing through spiral part 11 to obtain cooling energy from evaporator 2 and lower its temperature, thus supplying water to users.

[0041] Furthermore, the water tank 4 is also equipped with an exhaust port 42, which is located on the top of the water tank 4. The exhaust port 42 is used to allow air to enter when the water in the water tank 4 flows into the water pipe 1, so as to balance the atmospheric pressure inside the water tank 4 and prevent the water from being unable to flow out due to negative pressure in the water storage chamber.

[0042] As shown in the figure, the vent 42 is located on the top end face of the water tank 4. In addition, the top end face of the water tank 4 is also provided with a water inlet 43. Of course, a through hole can be provided only on the top end face or the top of the side of the water tank 4 for adding water and venting.

[0043] Furthermore, the top of the spiral part 11 is not higher than the bottom of the water tank 4.

[0044] After the water flows out of the water pipe 1, the water pressure in the water tank 4 is used to press the water back into the water pipe 1 without the need for other pressurizing devices. The top of the spiral part 11 is not higher than the bottom of the water tank 4, which allows the water in the water tank 4 to be completely used up and avoids the problem of water always remaining at the bottom of the water tank 4 that cannot be drained.

[0045] In some embodiments, the chiller further includes a water pump 5 disposed in the connecting portion 12, which pressurizes and transports water in the water storage chamber to the spiral portion 11, or pressurizes and transports water in the spiral portion 11 to the water storage chamber.

[0046] The spiral section 11 is close to the evaporator tube 2. If there is always water in the spiral section 11, the water in the spiral section 11 will easily cause the water pipe 1 to freeze under the cooling of the evaporator tube 2, making it impossible to run out of water. Therefore, a water pump 5 is installed in the connecting section 12. When the user needs to take water, the water pump 5 draws water from the water tank 4, pressurizes it and transports it to the spiral section 11 and the evaporator tube 2 for heat exchange. After the user finishes taking water, the water pump 5 pumps the water in the spiral section 11 back to the water tank 4 to prevent water from remaining in the spiral section 11 and freezing.

[0047] The water pump 5 can not only pump water in both directions, but also control the flow rate of water in the spiral section 11 when the user takes water. That is, the water pump 5 can control the time it takes for the water in the spiral section 11 to flow through the evaporation tube 2, thereby controlling the temperature of the ice water taken by the user.

[0048] In other embodiments, the spiral portion 11 and the liquid flow direction in the evaporator tube 2 are aligned in the spiral extension direction of the evaporator tube 2, so that the flow of refrigerant and water is synchronized with the heat exchange, resulting in faster heat exchange efficiency and saving cooling time.

[0049] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0050] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

Claims

1. A chiller, characterized in that, include: Water pipe, including a spiral portion that is spirally coiled into a cylindrical shape; The evaporator tube is also spirally coiled into a cylindrical shape, and the spirally coiled evaporator tube is located inside the spiral portion of the water pipe.

2. The chiller according to claim 1, characterized in that, It also includes a hollow cooling cylinder disposed between the spiral section and the evaporator tube, wherein the inner wall of the cooling cylinder is provided with a first spiral groove, and the evaporator tube is disposed in the first spiral groove.

3. The chiller according to claim 2, characterized in that, The outer wall of the cooling cylinder is provided with a second spiral groove, and the spiral part is disposed in the second spiral groove.

4. The chiller according to claim 3, characterized in that, The cross-sections of the first and second spiral grooves are both semi-circular. The radius of the cross-section of the first spiral groove matches the radius of the evaporator tube, and the radius of the cross-section of the second spiral groove matches the radius of the spiral portion.

5. The chiller according to claim 4, characterized in that, Along the length of the cooling cylinder, the distance between adjacent spiral sections does not exceed 1 mm, and the distance between adjacent evaporator tubes does not exceed 1 mm.

6. The chiller according to claim 1, characterized in that, It also includes a water tank, which has a water storage cavity and a water outlet communicating with the water storage cavity. The water pipe also includes a connecting part that is connected to the spiral shape and communicates with the water outlet.

7. The chiller according to claim 6, characterized in that, The water tank is also provided with a vent, which is located on the top of the water tank.

8. The chiller according to claim 7, characterized in that, The top of the spiral section is not higher than the bottom of the water tank.

9. The chiller according to claim 7, characterized in that, It also includes a water pump disposed in the connecting part, the water pump pressurizing and transporting water in the water storage chamber to the spiral part, or pressurizing and transporting water in the spiral part to the water storage chamber.

10. The chiller according to claim 1, characterized in that, In the spiral extension direction of the evaporator tube, the spiral portion and the liquid flow direction in the evaporator tube are consistent.

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