Coil pipe assembly for heat exchanger and heat exchange water tank

Abstract

The utility model relates to a coil pipe assembly for a heat exchanger and a heat exchange water tank, which comprise a plurality of coil pipe unit groups which are arrayed along a first direction and are arranged at intervals and a pressing structure used for fixing the coil pipe unit groups, and the coil pipe unit groups comprise at least two first coil pipes which are arranged at intervals along the same direction. The first coil pipe is of a multi-circle structure formed by winding a first winding pipe on a vertical plane, and a first water inlet pipe and a first water outlet pipe extend out of the first coil pipe. According to the scheme, due to the fact that the first coil pipe is of the multi-circle structure formed by winding the first winding pipe, the number of exposed coil pipes of the first coil pipe is increased, and the heat exchange area of the first coil pipe is increased; the coil pipe unit groups are arranged at intervals in an array mode, the contact area between the coil pipe unit groups and water flow in the heat exchange process is guaranteed through interval arrangement, the number of the coil pipe unit groups is increased through array arrangement, and the overall heat exchange efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of heat exchangers, in particular to a coil assembly for a heat exchanger and a water exchange water tank. Background Art

[0002] In the existing heat exchanger coil form, all heat exchange tubes are squeezed into one pipe and stacked together. The internal heat exchange tubes cannot contact the hot water, and only the outer periphery of the heat exchange tubes can contact the hot water, resulting in a small contact surface area between the heat exchange tubes and the hot water. Due to the small contact area between the heat exchange tubes and the hot water, only small-diameter pipes can be used, which leads to low overall heat exchange efficiency of the heat exchanger. Utility Model Content

[0003] Based on this, a coil assembly for a heat exchanger and a water exchange water tank are provided to improve the problem in the prior art that the contact area between the heat exchange tube and the hot water is small and the overall heat exchange efficiency of the heat exchange tube is low.

[0004] In one aspect, the present invention provides a coil assembly for a heat exchanger, comprising a plurality of coil unit groups arranged in an array and at intervals along a first direction, and a clamping structure for fixing the coil unit groups, wherein:

[0005] The coil unit group includes at least two first coils spaced apart in the same direction. The first coil is a multi-circle structure formed by winding a first winding tube on a vertical plane. A first water inlet pipe and a first water outlet pipe extend from the first coil.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] In one embodiment, the coil unit group includes four first coils arranged in a 2X2 manner.

[0008] In one embodiment, the coil unit group also includes a second coil, which is fixed by a compression structure, and the second coil is vertically wrapped around the first coil. The second coil is spirally wrapped by the second winding tube to form a multi-turn structure.

[0009] In one embodiment, the coil unit group includes four second coils arranged in a vertical direction, wherein:

[0010] Two second coils are surrounded on the upper part of the first coil, and another two second coils are surrounded on the lower part of the first coil, so that the middle part of the first coil is exposed.

[0011] In one embodiment, the second coil is formed by wrapping the second winding tube to form a tubular structure with upper and lower openings, and a second water inlet pipe and a second water outlet pipe extend from the second coil.

[0012] In one embodiment, the first coil is formed by a first winding tube that is tightly coiled and surrounded by a hollow elliptical structure, and the compression structure includes at least one first pressure plate; one end of the first pressure plate extends into the hollow structure of the first coil, and the other end of the first pressure plate extends to the outside of the first coil, and the first coil is compressed on the compression structure by the first pressure plate.

[0013] In one embodiment, the clamping structure includes at least two second pressure plates, each of which includes a second fixed portion and a second movable portion, the second fixed portion forms a plurality of continuous and close-fitting H-shaped structures along the transverse direction, and the second movable portion is detachably connected to the upper and lower ends of the H-shape of the second fixed portion.

[0014] In one of the embodiments, a protrusion is further provided on the second movable portion, and the protrusion portion extends into the H-shaped structure of the second fixed portion.

[0015] In one of the embodiments, adjacent second pressure plates within the coil unit group are fixed by at least one U-shaped connecting plate, and the U-shaped side walls of the connecting plate are respectively fixed to the corresponding second pressure plates; the clamping structure also includes a clamping plate and a side pressure plate respectively located at both ends, the clamping plate and the side pressure plate are fixed on different second pressure plates, and at least one U-shaped clamping groove is provided on the clamping plate, and the side pressure plate is connected to the first pressure plate.

[0016] On the other hand, the present invention also provides a heat exchange water tank, including a coil assembly for a heat exchanger, a water inlet assembly and a water outlet assembly are fixed on the outer wall of the heat exchange water tank, the water inlet assembly is connected to the water inlet pipes of all the coils, and the water outlet assembly is connected to the water outlet pipes of all the coils.

[0017] The beneficial effects of the utility model are as follows: since the first coil is a multi-circle structure formed by winding the first coil, the number of coils exposed outside the first coil is increased, so that the heat exchange area of ​​the first coil is increased; since each first coil is extended with an independent first water inlet pipe and a first water outlet pipe, the first coil can directly take in and out water, reducing the flow path of water during the heat exchange process, which is beneficial to the improvement of heat exchange efficiency; a clamping structure is provided, and the first coil is fixed by the clamping structure and the first coil is fixed at intervals at the same time, so that there is a gap between each first coil, which can increase the heat exchange contact area of ​​the first coil in the water exchange water tank and effectively improve the heat exchange efficiency; the coil unit group is arranged in an interval and array manner, the interval arrangement ensures the contact area with the water flow during the heat exchange process, the array arrangement increases the number of coil unit groups, and improves the overall heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a coil assembly for a heat exchanger in one embodiment;

[0019] Figure 2 for Figure 1Schematic diagram of the second coil;

[0020] Figure 3 is a schematic structural diagram of a coil assembly for a heat exchanger having only a first coil in another embodiment;

[0021] Figure 4 for Figure 3 The enlarged schematic diagram of point A in the middle;

[0022] Figure 5 for Figure 3 A top view of

[0023] Figure 6 for Figure 5 Sectional view at the middle BB;

[0024] Figure 7 for Figure 6 The enlarged schematic diagram of the center C;

[0025] Figure 8 A schematic diagram of a compression structure in a coil assembly for a heat exchanger;

[0026] Fig. 9 for Figure 8 Enlarged schematic diagram of point D in the middle.

[0027] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0028] 100 first coil; 200 second coil;

[0029] 300: clamping structure; 310: first pressing plate;

[0030] 320 second pressing plate; 321 second fixed portion; 322 second movable portion;

[0031] 330 connecting plate; 340 clamping plate;

[0032] 350 side pressure plate; 351 first fixed portion; 352 first movable portion;

[0033] 400 water inlet components; 500 water outlet components. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0035] It should be noted that the illustrations provided in this embodiment only illustrate the basic concept of the present invention in a schematic manner, so the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the form, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0036] The structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0037] Example 1

[0038] See also Figure 3 A coil assembly for a heat exchanger includes a plurality of coil unit groups arranged in an array along a first direction and spaced apart from each other, and a clamping structure 300 for fixing the coil unit groups, wherein:

[0039] The coil unit group includes at least two first coils 100 spaced apart in the same direction. The first coil 100 is a multi-loop structure formed by winding a first winding tube on a vertical plane. A first water inlet pipe and a first water outlet pipe extend out of the first coil 100.

[0040] The beneficial effects of this embodiment are as follows: since the first coil 100 is a multi-loop structure formed by winding the first winding tube, the number of coils exposed outside the first coil 100 is increased, so that the heat exchange area of ​​the first coil 100 is increased; since each first coil 100 is extended with an independent first water inlet pipe and a first water outlet pipe, the first coil 100 can directly take in and out water, reducing the flow path of water during the heat exchange process, which is conducive to improving the heat exchange efficiency; a clamping structure 300 is provided, and the first coil 100 is fixed by the clamping structure 300 and the first coil 100 is fixed at intervals at the same time, so that there is a gap between each first coil 100, which can increase the heat exchange contact area of ​​the first coil 100 in the heat exchange water tank and effectively improve the heat exchange efficiency; the coil unit group is arranged in an interval and array manner, the interval arrangement ensures the contact area with the water flow during the heat exchange process, and the array arrangement increases the number of coil unit groups, thereby improving the overall heat exchange efficiency.

[0041] On the basis of the above embodiment, when the material of the first coiled tube is specifically selected, the first coiled tube can be set as a hose to facilitate the first coiled tube 100 to be wound into the first coiled tube 100, and then the pressing structure 300 is fixed to ensure the stability of the first coiled tube 100. Figure 2 and Figure 3 The first water inlet pipe and the first water outlet pipe may extend from both ends of the first coil 100 respectively.

[0042] Example 2

[0043] See also Figure 3 and Figure 4 Preferably, based on Example 1, the coil unit group includes four first coils 100 arranged in a 2X2 manner.

[0044] The beneficial effect of adopting the preferred solution in the above embodiment is that the first coils 100 are arranged in a regular manner, such as a 2X2 manner, and the number of the first coils 100 can be increased as much as possible within a limited space to improve the heat exchange efficiency.

[0045] See also Figure 3 On the basis of the above embodiment, when arranged in 2X2 manner, the first coil 100 is arranged in two directions, namely, a first direction and a second direction, wherein the first direction and the second direction can be arranged vertically or at a certain angle; especially when the water exchange water tank is a regular rectangular structure, the first direction and the second direction are arranged vertically, and the number of the first coil 100 can be increased in a limited space to improve the heat exchange efficiency.

[0046] Example 3

[0047] See also Figure 1 and Figure 2 Preferably, on the basis of Embodiment 1-2, the coil unit group further includes a second coil 200, the second coil 200 is fixed by a clamping structure 300, the second coil 200 is horizontally wrapped around the first coil 100, and the second coil 200 is spirally wrapped by a second winding tube to form a multi-turn structure.

[0048] The beneficial effect of adopting the preferred scheme in the above embodiment is that the second coil 200 is fixed by the clamping structure 300 to ensure the stability of the second coil 200 and prevent the second coil 200 from spreading out; the second coil 200 is added on the basis of the first coil 100, and the two coils complement each other, effectively increasing the heat exchange area in the water exchange tank, and the second coil 200 and the first coil 100 have different winding directions, which complement each other in the arrangement density of the heat exchange tubes; the first coil 100 can be placed inside the second coil 200 to increase the arrangement density of the heat exchange tubes in the water exchange tank, thereby increasing the heat exchange area in the water exchange tank, and can effectively increase the arrangement density of the heat exchange tubes, thereby improving the heat exchange efficiency.

[0049] Based on the above embodiment, the second coil 200 may form a tubular structure with upper and lower openings. The second coil 200 may completely surround the first coil 100 in the horizontal direction, or may partially surround the first coil 100 in the horizontal direction.

[0050] Example 4

[0051] See also Figure 1 and Figure 3 Preferably, based on Embodiment 3, the coil unit group includes four second coils 200 arranged in the vertical direction, wherein:

[0052] Two second coils 200 surround the upper portion of the first coil 100 , and another two second coils 200 surround the lower portion of the first coil 100 , so that the middle portion of the first coil 100 is exposed.

[0053] The beneficial effect of adopting the preferred scheme in the above embodiment is that, in each group of heat exchange tube groups, the four second coils 200 are arranged in the same direction but are set separately in pairs, so that the middle part of the first coil 100 is exposed, that is, the middle part of the heat exchange tube group has a liquid inlet position, so that the heat exchange liquid in the heat exchange water tank can enter the heat exchange tube group from the middle part of the heat exchange tube group, so that the heat exchange liquid can enter and exit the upper and lower ends and the middle part of the heat exchange tube group, thereby improving the fluidity of the heat exchange liquid and improving the heat exchange efficiency of the heat exchange liquid.

[0054] See also Figure 1 On the basis of the above embodiments, the first coil 100 and the second coil 200 are arranged in groups, and the arrangement of the first coil 100 and the second coil 200 is simulated or practiced to obtain an arrangement method with high heat exchange efficiency and use it as the arrangement method of the heat exchange tube group, so that multiple heat exchange tube groups can be arranged in the water exchange water tank, which is convenient for regularly combining and arranging the first coil 100 and the second coil 200, ensuring the arrangement density of the heat exchange tubes in the water exchange water tank while improving the heat exchange efficiency.

[0055] The first coil 100 can be wound by the first winding tube along the same direction. In the heat exchange tube group, the length of each heat exchange tube group is approximately equal to the length of the two first coils 100, that is, the heat exchange tube group has two first coils 100 in the length direction; the height of each heat exchange tube group is approximately equal to the width of the first coil 100, and the height of each heat exchange tube group is not less than the height of the four second coils 200; the opening directions of the four second coils 200 overlap, wherein the second coils 200 are fitted in pairs in the vertical direction, so that two second coils 200 are located at the upper part of the heat exchange tube group, and the other two second coils 200 are located at the lower part of the heat exchange tube group.

[0056] Example 5

[0057] See also Figure 1 and Figure 3 Preferably, on the basis of Embodiment 3-4, the second coil 200 is formed by a second winding tube that is tightly wound and surrounded by a tubular structure with upper and lower openings, and a second water inlet pipe and a second water outlet pipe extend out of the second coil 200.

[0058] The beneficial effect of adopting the preferred scheme in the above embodiment is that the second coil 200 forms a tubular structure, so that heat exchange can be carried out both inside and outside the tube of the second coil 200, thereby increasing the area of ​​heat exchange; since the second coil 200 is a tubular structure, the first coil 100 can be placed inside the tubular structure of the second coil 200 in a vertical direction to increase the arrangement density of the heat exchange tubes in the heat exchange water tank; since the second coil 200 forms a tubular structure with openings at both ends, when the second coil 200 is placed inside the second coil 200, the heat exchange liquid in the heat exchange water tank can also easily enter the tubular structure of the second coil 200, thereby facilitating the flow of the heat exchange liquid to improve the heat exchange efficiency in the heat exchange water tank; since each second coil 200 extends out with an independent second water inlet pipe and a second water outlet pipe, the second coil 200 can directly inlet and outlet water, reducing the flow path of water during the heat exchange process, which is beneficial to improving the heat exchange efficiency.

[0059] Example 6

[0060] See also Figure 3 and Figure 4 Preferably, on the basis of Examples 1-5, the first coil 100 is formed by a first winding tube that is tightly coiled and surrounded by a hollow elliptical structure, and the clamping structure 300 includes at least one first pressure plate 310; one end of the first pressure plate 310 extends into the hollow structure of the first coil 100, and the other end of the first pressure plate 310 extends to the outside of the first coil 100, and the first coil 100 is pressed against the clamping structure 300 by the first pressure plate 310.

[0061] See also Figure 4The beneficial effect of adopting the preferred scheme in the above embodiment is that, since the first coil 100 is a multi-turn structure of close winding, there is no gap between adjacent first winding tubes, while in the prior art, each heat exchange tube is usually arranged with gaps. Therefore, this scheme avoids the problem of providing a gap positioning device for the heat exchange tubes with such gap arrangement during the processing, simplifies the installation and molding process of the first coil 100, and improves the installation efficiency of the first coil 100 (similarly, when the second coil 200 is formed by close winding, this technical effect can also be achieved); the clamping structure 300 is provided with a first pressing plate 310. Since the first coil 100 is a hollow elliptical structure and the first coil 100 is formed by winding the first winding tube along the same plane, the first pressing plate 310 simultaneously presses the middle and outer sides of the first coil 100, so that the first pressing plate 310 can press the first coil 100 along the extension plane of the first coil 100, thereby improving the stability of the first coil 100.

[0062] On the basis of the above embodiment, each first coil 100 is provided with at least one first pressing plate 310. When one first pressing plate 310 is provided, the first pressing plate 310 is provided in parallel with the length direction of the first coil 100 and is provided at any one of the two ends of the length direction of the first coil 100. When two first pressing plates 310 are provided, the two first pressing plates 310 can be provided symmetrically so as to press and fix the ends of the first coil 100. When the first coil 100 is provided in the horizontal direction, the first pressing plate 310 is also provided in the horizontal direction. The first coil 100 is approximately elliptical and hollow in the middle.

[0063] Example 7

[0064] See also Figure 5-9 Preferably, on the basis of embodiments 1-6, the clamping structure 300 includes at least two second pressing plates 320, each second pressing plate 320 includes a second fixed portion 321 and a second movable portion 322, the second fixed portion 321 forms a plurality of continuous and close-fitting H-shaped structures along the transverse direction, and the second movable portion 322 is detachably connected to the upper and lower ends of the H-shape of the second fixed portion 321.

[0065] See also Fig. 9 The beneficial effect of adopting the preferred scheme in the above embodiment is that the clamping structure 300 is provided with a second pressing plate 320, and the second fixing portion 321 is a plurality of H-shaped structures that are continuous and fit and extend along the transverse direction, so that the first coil 100 or the second coil 200 can extend into the upper and lower ends of the H-shaped structure, and then be fixed on the second fixing portion 321 along the upper and lower ends of the H-shaped structure through the second movable portion 322, and the coil is pressed or blocked by the second movable portion 322 to fix the position of the first coil 100 or the second coil 200 in this direction; in addition, the transverse direction at this place is the first direction in the first coil 100.

[0066] Example 8

[0067] See also Figure 7 and Fig. 9 Preferably, on the basis of Embodiment 7, a protrusion is further provided on the second movable portion 322 , and the protrusion portion extends into the H-shaped structure of the second fixed portion 321 .

[0068] The beneficial effect of adopting the preferred scheme in the above embodiment is that the second movable part 322 is used to close the openings at the upper and lower ends of the second fixed part 321, and the second movable part 322 is a strip structure with a raised middle part. The middle part of the second movable part 322 protrudes toward the upper and lower grooves of the H-shaped structure and can extend into the H-shaped structure to press the coil into the second movable part 322.

[0069] On the basis of the above embodiment, there are a plurality of second movable parts 322, and each second movable part 322 can seal one or more H-shaped ends of the second fixed part 321 to facilitate the separation and fixation of the coil.

[0070] Example 9

[0071] See also Figure 8 Preferably, on the basis of Examples 7-8, adjacent second pressure plates 320 in the coil unit group are fixed by at least one U-shaped connecting plate 330, and the U-shaped side walls of the connecting plate 330 are respectively fixed to the corresponding second pressure plates 320; the clamping structure 300 also includes a clamping plate 340 and a side pressure plate 350 respectively located at both ends, the clamping plate 340 and the side pressure plate 350 are fixed on different second pressure plates 320, and at least one U-shaped clamping groove is provided on the clamping plate 340, and the side pressure plate 350 is connected to the first pressure plate 310.

[0072] The beneficial effect of adopting the preferred scheme in the above embodiment is that by connecting different second pressure plates 320 through the connecting plate 330, the first coil 100 can pass through the two second pressure plates 320, thereby improving the stability of the first coil 100 after the position is fixed; a clamping plate 340 and a side pressure plate 350 are provided, which are respectively used for auxiliary fixation at both ends of the length direction of the first coil 100. Specifically, one end of the first coil 100 is clamped into the U-shaped clamping groove of the clamping plate 340, and the other end of the first coil 100 is pressed against the side pressure plate 350 by the first pressure plate 310.

[0073] See also Figure 8 On the basis of the above embodiment, the connection plate 330 and the second pressure plate 320 may be fixed by welding or bolting; there are five connection plates 330 which are evenly spaced, and all the connection plates 330 are arranged in parallel.

[0074] Example 10

[0075] See also Figure 1Preferably, on the basis of embodiments 1-9, the present invention further provides a heat exchange water tank, including a coil assembly for a heat exchanger, a water inlet assembly 400 and a water outlet assembly 500 are fixed on the outer wall of the heat exchange water tank, the water inlet assembly 400 is connected to the water inlet pipes of all the coils, and the water outlet assembly 500 is connected to the water outlet pipes of all the coils.

[0076] The beneficial effect of adopting the preferred solution in the above embodiment is that the water inlet assembly 400 and the water outlet assembly 500 are fixed to the outer wall of the water exchange tank, reducing the occupation of the internal space of the water exchange tank, so as to facilitate sufficient heat exchange in the water exchange tank.

[0077] On the basis of the above embodiment, since the second water inlet pipe and the second water outlet pipe are respectively extended from both ends of the second coil 200, and the first water inlet pipe and the first water outlet pipe are respectively extended from both ends of the first coil 100, all the first water inlet pipes and the second water inlet pipes extend in the same direction and are connected to the same water inlet assembly 400; all the first water outlet pipes and the second water outlet pipes extend in the same direction and are connected to the same water outlet assembly 500.

[0078] See also Figure 1 In some embodiments, there are 9 heat exchange tube assemblies in the heat exchange water tank, the first coil 100 is used as a longitudinal coil, the second coil 200 is used as a transverse coil, and the first coil 100 and the second coil 200 are both used as heat exchange tubes, so each heat exchange tube group is provided with four first coils 100 and four second coils 200; cold water enters the heat exchange tube through the first water inlet pipe and the second water inlet pipe, and hot water flows out through the first water outlet pipe and the second water outlet pipe. Due to the dispersed arrangement of the heat exchange tubes, each heat exchange tube group can fully contact with the hot water, and the cold water can be heated faster.

[0079] In addition, in the prior art, since all the heat exchange tubes are squeezed into one pipeline and stacked together, the internal heat exchange tubes cannot contact the hot water, and the contact surface area with the hot water is as low as about 7.6m 2 Due to the small contact area of ​​the heat exchange tube, only small diameter pipes can be used, with an inner diameter of 2.7 mm, resulting in low overall heat exchange efficiency of the heat exchanger. In this application, the heat exchange tubes are divided into a first coil 100 arranged longitudinally and a second coil 200 arranged transversely. Sufficient space is left between the heat exchange tubes to allow the heat exchange tubes to fully contact with the hot water. Under the same conditions, the contact surface area between the heat exchange tubes and the hot water is about 12.2 m 2 , and the inner diameter of the heat exchange tube can be increased to 3.1mm, solving the problem of low heat exchange efficiency of the heat exchanger.

[0080] See also Figure 3 , Figure 4 , Figure 5 , Figure 8 and Fig. 9The pressing structure 300 includes a first pressing plate 310, a second pressing plate 320, a connecting plate 330, a clamping plate 340 and a side pressing plate 350. The first pressing plate 310 is used to press the first coil 100; the second pressing plate 320 includes a second fixed portion 321 and a second movable portion 322. The second fixed portion 321 is used to clamp the first coil 100 and the second coil 200 along the up and down direction of the H-shaped structure, and the second movable portion 322 is used to clamp the clamped coil to prevent the coil from shaking. The clamping plate 340 is fixed on the second pressing plate 320, and at least one U-shaped clamping groove is provided on the clamping plate 340, which extends out in the horizontal direction and is used to accommodate one end of the first coil 100. Every two parallel second pressing plates 320 form a group, and the two second pressing plates 320 are fixed by a connecting plate 330. On the opposite sides of the two second pressing plates 320, one second pressing plate 320 is fixed with a side pressing plate 350, and the other second pressing plate 320 is fixed with a clamping plate 340; in addition to being used to assist in fixing the first coil 100, the side pressing plate 350 can also be used to clamp any end of the second coil 200. The side pressing plate 350 is perpendicular to the second pressing plate 320, and the number of the side pressing plates 350 is twice the number of the heat exchange tube group. Both ends of the heat exchange tube group in the length direction are provided with side pressing plates 350, one end of the side pressing plate 350 is fixed on the second pressing plate 320, and the other end of the side pressing plate 350 is used for clamping the second coil 200, so each The second coil 200 is clamped with two side pressure plates 350; specifically, the side pressure plate 350 includes a first fixed portion 351 and a first movable portion 352, the first fixed portion 351 is provided with a mounting groove and the mounting groove is used to accommodate the second coil 200, the depth of the mounting groove is greater than the diameter of the second coil 200, and the first movable portion 352 can be partially extended into the mounting groove to press the second coil 200; the first pressure plate 310 is arranged in the horizontal direction and both ends are fixed to the middle of the side pressure plate 350.

[0081] See also Figure 1 A total of nine heat exchange tube groups are arranged in the water tank, including 36 first coils 100 and 36 second coils 200.

[0082] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0083] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0084] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0085] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0086] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0087] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A coil assembly for a heat exchanger, characterized in that: It comprises a plurality of coil unit groups arranged in an array along a first direction and at intervals, and a pressing structure (300) for fixing the coil unit groups, wherein: The coil unit group comprises at least two first coils (100) spaced apart in the same direction, the first coil (100) being a multi-turn structure formed by winding a first winding tube on a vertical plane, and a first water inlet pipe and a first water outlet pipe extending from the first coil (100).

2. The coil assembly for heat exchanger according to claim 1, characterized in that: The coil unit group includes four first coils (100) arranged in a 2X2 manner.

3. The coil assembly for heat exchanger according to claim 1, characterized in that: The coil unit group also includes a second coil (200), the second coil (200) is fixed by the clamping structure (300), the second coil (200) is vertically wrapped around the first coil (100), and the second coil (200) is spirally wrapped by the second winding tube to form a multi-turn structure.

4. The coil assembly for heat exchanger according to claim 3, characterized in that: The coil unit group includes four second coils (200) arranged in a vertical direction, wherein: Two of the second coils (200) surround the upper portion of the first coil (100), and another two of the second coils (200) surround the lower portion of the first coil (100), so that the middle portion of the first coil (100) is exposed.

5. The coil assembly for heat exchanger according to claim 3, characterized in that: The second coil (200) is formed by the second coiled tube being tightly wound and surrounding a tubular structure with upper and lower openings, and a second water inlet pipe and a second water outlet pipe extend out of the second coil (200).

6. The coil assembly for heat exchanger according to any one of claims 1 to 5, characterized in that: The first coil (100) is formed by a first winding tube that is tightly coiled and enclosed to form a hollow elliptical structure, and the clamping structure (300) includes at least one first pressing plate (310); one end of the first pressing plate (310) extends into the hollow structure of the first coil (100), and the other end of the first pressing plate (310) extends to the outside of the first coil (100), and the first coil (100) is pressed onto the clamping structure (300) by the first pressing plate (310).

7. The coil assembly for heat exchanger according to claim 6, characterized in that: The clamping structure (300) includes at least two second pressing plates (320), each of the second pressing plates (320) includes a second fixed portion (321) and a second movable portion (322), the second fixed portion (321) forms a plurality of continuous and closely extending H-shaped structures along the transverse direction, and the second movable portion (322) is detachably connected to the upper and lower ends of the H-shape of the second fixed portion (321).

8. The coil assembly for heat exchanger according to claim 7, characterized in that: The second movable portion (322) is also provided with a protrusion, and the protrusion portion extends into the H-shaped structure of the second fixed portion (321).

9. The coil assembly for heat exchanger according to claim 7, characterized in that: The adjacent second pressure plates (320) in the coil unit group are fixed by at least one U-shaped connecting plate (330), and the U-shaped side walls of the connecting plate (330) are respectively fixed to the corresponding second pressure plates (320); the clamping structure (300) also includes a clamping plate (340) and a side pressure plate (350) respectively located at both ends, and the clamping plate (340) and the side pressure plate (350) are fixed on different second pressure plates (320), and at least one U-shaped clamping groove is provided on the clamping plate (340), and the side pressure plate (350) is connected to the first pressure plate (310).

10. A water exchange tank, characterized in that: It comprises a coil assembly for a heat exchanger as described in any one of claims 1 to 9, wherein a water inlet assembly (400) and a water outlet assembly (500) are fixed on the outer wall of the heat exchange water tank, the water inlet assembly (400) is connected to the water inlet pipes of all the coils, and the water outlet assembly (500) is connected to the water outlet pipes of all the coils.

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