Heat exchanger

Abstract

The utility model relates to the technical field of heat pumps, and discloses a heat exchanger. The heat exchanger comprises a shell, a connector assembly, a heat exchange pipe and a leading-out assembly. A heat exchange cavity is formed in the shell; the connector assembly comprises an inlet connector and an outlet connector. The heat exchange pipe is arranged in the heat exchange cavity and connected with the inlet connector. The leading-out assembly comprises a joint sleeve and a discharge pipe; the joint sleeve is connected with the heat exchange tube, one end of the discharge tube is connected with the joint sleeve, and the other end is connected with the outlet joint; wherein the joint sleeve is provided with a channel and an insertion hole, and the insertion hole is communicated with the channel; a notch is formed in one end of the discharging pipe, the end, provided with the notch, of the discharging pipe penetrates through the inserting hole and is inserted into the channel, and the notch is formed in the channel. According to the heat exchanger, the notch is formed in the end of the discharge pipe and is formed in the channel, so that the space occupied by the end of the discharge pipe for the channel is effectively reduced, the resistance of a heat exchange medium flowing through the connecting position of the discharge pipe and the joint sleeve is reduced, and the energy consumption of the heat exchanger is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pumps, in particular to a heat exchanger. Background Art

[0002] The heat exchanger is the core component of the heat pump. It is an energy-saving device that transfers heat between two or more fluids at different temperatures. The working principle of the heat pump is to pass the pool water into the heat exchanger. The heat exchanger is equipped with a high-temperature titanium tube. When the water flows through the heat exchanger, it absorbs part of the heat from the titanium tube. By driving the pool water to circulate through the heat pump, the water temperature in the swimming pool can be kept constant, thereby meeting the user's needs for water activities such as hot springs or swimming.

[0003] Due to the characteristics of the material, the titanium tube of the existing heat exchanger cannot be produced and processed by an integrated molding method, so the only method is to insert the first tube body into the second tube body and then weld and fix it. When the end of the first tube body is inserted into the second tube body, the end of the first tube body will occupy a large space inside the second tube body, which will cause the cross-sectional area inside the second tube body to become smaller, resulting in a greater resistance to the heat exchange medium flowing in the second tube body, which will increase the energy consumption of the heat exchanger. Utility Model Content

[0004] The technical problems to be solved by the utility model are:

[0005] The heat exchange medium is subjected to great resistance at the connection position of the pipe body, resulting in high energy consumption of the heat exchanger.

[0006] In order to solve the above technical problems, the utility model provides a heat exchanger, comprising:

[0007] A shell having a heat exchange cavity disposed therein;

[0008] A joint assembly is mounted on the housing; the joint assembly comprises an inlet joint and an outlet joint;

[0009] a heat exchange tube connected to the inlet joint, the heat exchange tube being arranged in the heat exchange cavity; and

[0010] The outlet assembly includes a coupling sleeve and a discharge pipe; the coupling sleeve is connected to the heat exchange pipe, one end of the discharge pipe is connected to the coupling sleeve, and the other end of the discharge pipe is connected to the outlet joint;

[0011] Among them, a channel is provided in the coupling sleeve, and the channel is connected with the inside of the heat exchange tube. A plug hole is provided on one side of the coupling sleeve, and the plug hole is connected with the channel; a notch is provided at one end of the discharge pipe, and the end of the discharge pipe provided with the notch passes through the plug hole and is inserted into the channel, and the notch is provided in the channel.

[0012] In one embodiment, the notch penetrates the discharge pipe along the extension direction of the channel.

[0013] In one embodiment, the notch is in the shape of a circular groove, and the notch forms an arc-shaped surface at the end of the discharge pipe; the cross-section of the channel is circular, and the arc-shaped surface corresponds to the shape of the side wall of the channel.

[0014] In one embodiment, the distance between the arc-shaped surface and the side wall of the channel is L;

[0015] Among them, 1mm≤L≤3mm.

[0016] In one embodiment, the discharge pipe includes a joint and a lead-out portion; one end of the joint is inserted into the socket, the lead-out portion is connected to the joint, the lead-out portion extends from the joint toward the outlet joint, and the notch is arranged at one end of the joint away from the lead-out portion.

[0017] In one embodiment, the joint portion and the outlet portion are both in a straight tube shape, and the extending direction of the joint portion is perpendicular to the extending direction of the outlet portion.

[0018] In one embodiment, the heat exchange chamber is cylindrical, and the outlet portion is extended along the central axis of the heat exchange chamber.

[0019] In one embodiment, the heat exchange tube includes a heat exchange portion and an extension portion; the heat exchange portion is connected to the coupling sleeve, the extension portion is arranged at one end of the heat exchange portion away from the coupling sleeve, and the extension portion is connected to the inlet joint.

[0020] In one embodiment, the heat exchange portion extends in a spiral shape and is disposed around the periphery of the heat exchange cavity.

[0021] In one embodiment, two heat exchange tubes are provided, the coupling sleeve connects the heat exchange parts of the two heat exchange tubes, the heat exchange parts of the two heat exchange tubes have opposite spiral directions, and one of the heat exchange parts is arranged around the outside of the other heat exchange part.

[0022] Compared with the prior art, the above heat exchanger has the following beneficial effects:

[0023] By setting a notch at the end of the discharge pipe and setting the notch in the channel, the space occupied by the end of the discharge pipe on the channel is effectively reduced, thereby reducing the resistance of the heat exchange medium flowing through the connection position between the discharge pipe and the coupling sleeve, thereby reducing the energy consumption of the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of a heat exchanger according to one embodiment of the utility model;

[0025] Figure 2 for Figure 1 A schematic diagram of the structure of the heat exchanger from another angle;

[0026] Figure 3 for Figure 1 Schematic diagram of the structure of the heat exchanger after the shell and joint components are hidden;

[0027] Figure 4 for Figure 3 Schematic diagram of the structure of the exported component;

[0028] Figure 5 for Figure 3 Schematic diagram of the decomposition structure of the exported components.

[0029] The meanings of the numbers in the accompanying drawings are:

[0030] 100. Heat exchanger;

[0031] 10. Shell; 11. Heat exchange chamber; 15. Water inlet; 16. Drainage outlet;

[0032] 20. Connector assembly; 21. Inlet connector; 22. Outlet connector;

[0033] 30. heat exchange tube; 31. heat exchange portion; 32. extension portion;

[0034] 40. outlet assembly; 41. coupling sleeve; 411. passage; 415. socket; 42. discharge pipe; 421. coupling portion; 422. outlet portion; 425. notch; 426. arc-shaped surface. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0036] 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.

[0037] 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.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" 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.

[0039] 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.

[0040] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0041] See also Figures 1 to 5 , is a heat exchanger 100 of an embodiment of the utility model, comprising a shell 10, a joint assembly 20, a heat exchange tube 30 and an outlet assembly 40. The shell 10 is arranged at the outermost side of the heat exchanger 100, and a heat exchange chamber 11 is arranged in the shell 10 to provide a space for heat exchange. The joint assembly 20 is installed on the shell 10, and the joint assembly 20 is used to connect with the external heat exchange medium supply device to pass the high-temperature heat exchange medium into the heat exchange chamber 11. It can be understood that the heat exchange medium includes other media such as Freon, ammonia, water, air or oil. The specific type of the heat exchange medium is not limited here, and it is sufficient to ensure that the heat can be transferred to the heat exchange chamber 11. In this embodiment, the heat exchange medium is Freon. The joint assembly 20 includes an inlet joint 21 and an outlet joint 22. The inlet joint 21 is used to pass the high-temperature heat exchange medium into the heat exchange chamber 11, and the outlet joint 22 is used to discharge the heat exchange medium after heat exchange. The heat exchange tube 30 is connected to the inlet joint 21. The heat exchange tube 30 is arranged in the heat exchange cavity 11. The high-temperature heat exchange medium enters the heat exchange tube 30 through the inlet joint 21, and then exchanges heat with the pool water in the heat exchange cavity 11 through the heat exchange tube 30. The outlet assembly 40 includes a coupling sleeve 41 and a discharge pipe 42; the coupling sleeve 41 is connected to the heat exchange tube 30, one end of the discharge pipe 42 is connected to the coupling sleeve 41, and the other end of the discharge pipe 42 is connected to the outlet joint 22. The coupling sleeve 41 is used to connect the discharge pipe 42 to the heat exchange tube 30, and the discharge pipe 42 is used to discharge the heat exchange medium after the heat exchange is completed. Among them, a channel 411 is provided in the coupling sleeve 41, and the channel 411 is connected to the inside of the heat exchange tube 30. A socket 415 is provided on one side of the coupling sleeve 41, and the socket 415 is connected to the channel 411; a notch 425 is provided at one end of the discharge pipe 42, and the end of the discharge pipe 42 provided with the notch 425 passes through the socket 415 and is inserted into the channel 411. The notch 425 is provided in the channel 411. By providing the notch 425, the resistance of the heat exchange medium flowing in the channel 411 is reduced, thereby improving the fluidity of the heat exchange medium in the channel 411, reducing the energy consumption of the heat exchanger 100, and ensuring the heat exchange effect.

[0042] Furthermore, the shell 10 is provided with a hollow structure, and the shell 10 is provided in a vertical direction; the heat exchange chamber 11 is provided in the shell 10, and the heat exchange chamber 11 is a relatively closed space, and the heat exchange chamber 11 is used to accommodate pool water and the heat exchange tube 30, thereby realizing heat exchange between the heat exchange medium and the pool water. In this embodiment, a water inlet 15 and a drain 16 are provided on the shell 10. The water inlet 15 and the drain 16 are provided on one side of the shell 10, and the water inlet 15 and the drain 16 are both connected to the heat exchange chamber 11, and the water inlet 15 is used to pass the pool water into the heat exchange chamber 11, and the drain 16 is used to discharge the pool water after heat exchange from the heat exchange chamber 11, so as to form a pool water circulation in the heat exchange chamber 11.

[0043] Furthermore, the joint assembly 20 is arranged at the top of the shell 10 to ensure that the high-temperature heat exchange medium flows from top to bottom. In this embodiment, the water inlet 15 is arranged at the bottom of the shell 10, and the drain port 16 is arranged at the top of the shell 10, so that the pool water flows from bottom to top in the heat exchange chamber 11, so that the flow direction of the pool water is opposite to the flow direction of the heat exchange medium, and the heat exchange between the pool water and the heat exchange medium is more sufficient, thereby improving the heat exchange effect.

[0044] Furthermore, the heat exchange tube 30 includes a heat exchange portion 31 and an extension portion 32. The heat exchange portion 31 is connected to the coupling sleeve 41, and the heat exchange portion 31 extends in a spiral shape. The heat exchange portion 31 is arranged around the periphery of the heat exchange chamber 11. The heat exchange medium conducts heat to the heat exchange portion 31, and the outer surface of the heat exchange portion 31 contacts the pool water to achieve heat exchange. By setting the heat exchange portion 31 in a spiral shape, the contact area between the heat exchange tube 30 and the pool water is increased, thereby improving the heat exchange effect. The extension portion 32 is arranged at one end of the heat exchange portion 31 away from the coupling sleeve 41, and the extension portion 32 is connected to the inlet joint 21, and the extension portion 32 is arranged in the vertical direction.

[0045] Furthermore, the number of the heat exchange tubes 30 is two, and the coupling sleeve 41 connects the heat exchange parts 31 of the two heat exchange tubes 30. The spiral directions of the heat exchange parts 31 of the two heat exchange tubes 30 are opposite, and one of the heat exchange parts 31 is arranged around the outside of the other heat exchange part 31. By setting the spiral directions of the two heat exchange parts 31 in opposite directions, the heat exchange effect in the circumferential direction of the heat exchange cavity 11 is more uniform, and the two heat exchange parts 31 are arranged in a structure where one is arranged outside the other, so that the heat exchange effect in the radial direction of the heat exchange cavity 11 is more uniform, thereby achieving a more uniform heat exchange effect of the pool water in the overall heat exchange cavity 11. In this embodiment, the number of the inlet joints 21 and the heat exchange tubes 30 is the same, and the inlet joints 21 are arranged one by one corresponding to the extension parts 32 of each heat exchange tube 30.

[0046] Further, the coupling sleeve 41 is in the shape of a hollow circular tube, and a channel 411 is provided inside the coupling sleeve 41. The channel 411 runs through both ends of the coupling sleeve 41, so that the two ends of the coupling sleeve 41 are respectively connected to the heat exchange parts 31 of the two heat exchange tubes 30, and the channel 411 connects the interiors of each heat exchange tube 30. The plug hole 415 is in the shape of a circular through hole, and the plug hole 415 is provided on one side of the coupling sleeve 41. The plug hole 415 is connected to the channel 411, and the plug hole 415 is used to communicate with the discharge pipe 42. It can be understood that the number of the heat exchange tubes 30 can also be multiple. When the heat exchange tubes 30 are multiple, each heat exchange part 31 can be connected to each end by increasing the end of the coupling sleeve 41; for example, when the number of the heat exchange tubes 30 is three, the coupling sleeve 41 is T-shaped; when the number of the heat exchange tubes 30 is four, the coupling sleeve 41 is "cross" shaped. The specific number of the heat exchange tubes 30 is not limited here, and it is sufficient to ensure that the coupling sleeve 41 can be connected to the heat exchange parts 31 of each heat exchange tube 30 simultaneously.

[0047] Furthermore, the discharge pipe 42 includes a joint portion 421 and a lead-out portion 422. The joint portion 421 is in the shape of a straight tube, one end of which is inserted into the jack 415, and then the joint portion 421 is connected and fixed to the joint sleeve 41 by welding; the lead-out portion 422 is in the shape of a straight tube, which is connected to the joint portion 421, and the lead-out portion 422 extends from the joint portion 421 toward the outlet joint 22, and the notch 425 is provided at one end of the joint portion 421 away from the lead-out portion 422. In this embodiment, the extension direction of the joint portion 421 is perpendicular to the extension direction of the lead-out portion 422, that is, the discharge pipe 42 is provided in an L-shaped structure.

[0048] Furthermore, the heat exchange chamber 11 is cylindrical, and the heat exchange chamber 11 is arranged in the vertical direction. The lead-out portion 422 is extended along the central axis of the heat exchange chamber 11, and the lead-out portion 422 is arranged on the central axis of the heat exchange chamber 11 to lead the heat exchange medium after heat exchange from the central position of the heat exchange chamber 11, thereby reducing the influence of the low-temperature lead-out portion 422 on the heat exchange efficiency of the pool water in the heat exchange chamber 11, ensuring the uniformity of the heat exchange effect, and improving the heat exchange effect.

[0049] Furthermore, the notch 425 penetrates the discharge pipe 42 along the extension direction of the channel 411 to ensure that the resistance of the heat exchange medium flowing through the channel 411 is reduced, and the damping of the heat exchange medium by the end of the joint 421 is reduced. In this embodiment, the notch 425 is in the shape of a circular groove, and the notch 425 forms an arc surface 426 at the end of the discharge pipe 42. The arc surface 426 is an arc-shaped annular surface. The cross section of the channel 411 is circular, and the arc surface 426 corresponds to the shape of the side wall of the channel 411. Furthermore, the distance between the arc surface 426 and the side wall of the channel 411 is L; wherein 1mm≤L≤3mm. If the distance between the curved surface 426 and the side wall of the channel 411 is too small, the connection strength between the joint 421 and the joint sleeve 41 will be reduced, thereby affecting the reliability of the use of the outlet component 40. If the distance between the curved surface 426 and the side wall of the channel 411 is too large, it will increase the resistance to the heat exchange medium. After experimental testing, the size of L is set to one millimeter to three millimeters, which can not only ensure the reliability of the fixation between the joint sleeve 41 and the discharge pipe 42, but also ensure that less resistance is generated to the heat exchange medium.

[0050] In summary, the embodiment of the utility model provides a heat exchanger 100, which has the following beneficial effects:

[0051] By setting a notch 425 at the end of the discharge pipe 42 and setting the notch 425 in the channel 411, the space occupied by the end of the discharge pipe 42 on the channel 411 is effectively reduced, thereby reducing the resistance of the heat exchange medium flowing through the connection position between the discharge pipe 42 and the coupling sleeve 41, thereby reducing the energy consumption of the heat exchanger 100.

[0052] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A heat exchanger, characterized in that: include: A shell having a heat exchange cavity disposed therein; A joint assembly is mounted on the housing; the joint assembly comprises an inlet joint and an outlet joint; A heat exchange tube connected to the inlet joint, wherein the heat exchange tube is arranged in the heat exchange cavity; and The outlet assembly includes a coupling sleeve and a discharge pipe; the coupling sleeve is connected to the heat exchange pipe, one end of the discharge pipe is connected to the coupling sleeve, and the other end of the discharge pipe is connected to the outlet joint; Among them, a channel is provided in the coupling sleeve, and the channel is connected with the inside of the heat exchange tube. A plug hole is provided on one side of the coupling sleeve, and the plug hole is connected with the channel; a notch is provided at one end of the discharge pipe, and the end of the discharge pipe provided with the notch passes through the plug hole and is inserted into the channel, and the notch is provided in the channel.

2. The heat exchanger according to claim 1, characterized in that: The notch penetrates the discharge pipe along an extending direction of the channel.

3. The heat exchanger according to claim 2, characterized in that: The notch is in the shape of a circular groove, and the notch forms an arc-shaped surface at the end of the discharge pipe; the cross section of the channel is circular, and the arc-shaped surface corresponds to the shape of the side wall of the channel.

4. The heat exchanger according to claim 3, characterized in that: The distance between the arc-shaped surface and the side wall of the channel is L; Among them, 1mm≤L≤3mm.

5. The heat exchanger according to claim 1, characterized in that: The discharge pipe includes a joint and a lead-out portion; one end of the joint is inserted into the jack, the lead-out portion is connected to the joint, the lead-out portion extends from the joint toward the outlet connector, and the notch is disposed at one end of the joint away from the lead-out portion.

6. The heat exchanger according to claim 5, characterized in that The joint portion and the lead-out portion are both in a straight tube shape, and the extending direction of the joint portion is perpendicular to the extending direction of the lead-out portion.

7. The heat exchanger according to claim 6, characterized in that The heat exchange cavity is cylindrical, and the lead-out portion is extended along the central axis of the heat exchange cavity.

8. The heat exchanger according to claim 1, characterized in that The heat exchange tube comprises a heat exchange portion and an extension portion; the heat exchange portion is connected to the coupling sleeve, the extension portion is arranged at one end of the heat exchange portion away from the coupling sleeve, and the extension portion is connected to the inlet joint.

9. The heat exchanger according to claim 8, characterized in that The heat exchange portion extends in a spiral shape and is arranged around the periphery of the heat exchange cavity.

10. The heat exchanger according to claim 9, characterized in that Two heat exchange tubes are provided, and the coupling sleeve connects the heat exchange parts of the two heat exchange tubes. The spiral directions of the heat exchange parts of the two heat exchange tubes are opposite, and one of the heat exchange parts is arranged around the outside of the other heat exchange part.

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