Integral air source heat pump water machine

Abstract

The invention belongs to the technical field of air source heat pump equipment, and discloses an integral type air source heat pump water machine which comprises a main machine shell, a water inlet pipe, a water outlet pipe, a water inlet pipe and a water outlet pipe. The heat exchange pipe fitting is arranged in the containing cavity and makes contact with the water body, and a refrigerant circulates in the heat exchange pipe fitting and exchanges heat with the water body; the heat exchange pipe fitting comprises a main heat exchange pipe, a plurality of containing areas are arranged on the surface of the main heat exchange pipe in a circumferential array mode, and the containing areas take the axis of the main heat exchange pipe as the center; the auxiliary heat exchange pipes are arranged in the containing area in an array mode; and the refrigerant inlet box is used for leading a refrigerant into the main heat exchange tube and the auxiliary heat exchange tube to circulate. According to the heat exchange pipe fitting, the unique containing area and the containing design of the auxiliary heat exchange pipe are adopted on the surface of the main heat exchange pipe, compared with traditional equipment which conducts heat exchange operation through a single heat exchange pipe or a small number of heat exchange pipes, the surface area participating in heat exchange is remarkably increased in a limited space, the heat exchange potential is exerted to the maximum degree, and the heat exchange efficiency is improved. Therefore, the heat exchange efficiency with the water body is improved, and the more efficient energy exchange requirement is met.

Description

Technical Field

[0001] The present invention belongs to the technical field of air source heat pump equipment, and specifically relates to an integrated air source heat pump water machine. Background Art

[0002] In an air source heat pump system, a heat exchanger is a key component for realizing heat exchange, and its performance directly affects the operating efficiency of the entire system. However, traditional heat exchange devices usually have the problem of unsatisfactory heat exchange effect, and the main reason lies in the limitation of the heat exchange contact surface.

[0003] Currently, the traditional heat exchange tube structure often relies only on a single or multiple heat exchange tubes for heat exchange operations. The heat exchange tubes are usually a long straight tube or a simply bent pipe, and are distributed at a uniform spacing and in a fixed arrangement. This single heat exchange tube structure enables heat exchange to occur only on the limited surface of the tube, restricting the surface area participating in heat exchange. In a limited space, its maximum heat exchange potential cannot be fully utilized, resulting in a great constraint on the overall heat exchange capacity and making it impossible to achieve efficient heat exchange with the surrounding medium (such as water body), thus making it difficult to meet the requirements of efficient energy exchange.

[0004] Therefore, an integrated air source heat pump water machine is proposed to solve the above problems. Summary of the Invention

[0005] To solve the problems raised in the above background art, the present invention provides an integrated air source heat pump water machine.

[0006] To achieve the above object, the present invention provides the following technical solution: An integrated air source heat pump water machine, comprising: A main machine housing having an accommodation cavity for accommodating water; A heat exchange pipe member disposed in the accommodation cavity in contact with the water, and refrigerant flowing inside it exchanges heat with the water; The heat exchange pipe member includes: A main heat exchange pipe, on the surface of which a plurality of accommodation areas are circumferentially arrayed around the axis of the main heat exchange pipe; Auxiliary heat exchange pipes, arrayed in the accommodation areas; An inlet refrigerant box for introducing refrigerant to flow inside the main heat exchange pipe and the auxiliary heat exchange pipes; An outlet refrigerant box for discharging the refrigerant after heat exchange inside the main heat exchange pipe and the auxiliary heat exchange pipes.

[0007] In the above technical solution, preferably, the cross-sectional structure of the main heat exchange pipe perpendicular to the axis is a multi-star shape, the spaces between adjacent corners of the main heat exchange pipe are accommodation areas, the auxiliary heat exchange pipes are disposed in the accommodation areas in close fit with the main heat exchange pipe, and the main heat exchange pipe and the auxiliary heat exchange pipes are adaptively clamped by an annular pipe clamp.

[0008] In the above technical solution, preferably, it further includes a connecting pipe connected to the main heat exchange pipe and the auxiliary heat exchange pipe. A convection fan member that rotates circumferentially along the axial direction of the connecting pipe is provided on the connecting pipe, and the convection fan member is used to guide the flow of the water body.

[0009] In the above technical solution, preferably, it further includes a partition plate provided in the accommodating cavity. There are flow areas between the opposite sides of the partition plate and the accommodating cavity. The partition plate divides the accommodating cavity into an upper cavity and a lower cavity. The main heat exchange pipe and the auxiliary heat exchange pipe are arranged from the inside of the upper cavity through the flow area to the inside of the lower cavity.

[0010] In the above technical solution, preferably, it further includes a guide fan provided in the flow area. The guide fan is rotatably provided on the partition plate.

[0011] In the above technical solution, preferably, both the main heat exchange pipe and the auxiliary heat exchange pipe are arranged in a serpentine shape. Connecting pipes and convection fan members are provided between the two ends of the main heat exchange pipe and the auxiliary heat exchange pipe and the refrigerant inlet box and the refrigerant outlet box.

[0012] In the above technical solution, preferably, the connecting pipe includes a first pipe and a second pipe. A convection pipe is rotatably provided between the first pipe and the second pipe. The convection fan member is provided on the convection pipe. Refrigerant flows through the first pipe, the convection pipe, and the second pipe, and drives the convection fan member to rotate as the refrigerant fluid flows.

[0013] In the above technical solution, preferably, the convection fan member includes: A follower rotating blade, provided on the inner wall of the convection pipe, and drives the follower rotating blade and the convection pipe to rotate as the refrigerant fluid flows; Convection fan blades, provided on the outer wall of the convection pipe, and synchronously rotate with the convection pipe to drive the water body to flow.

[0014] In the above technical solution, preferably, annular assembly shells are provided on the opposite sides of the first pipe and the second pipe. The convection pipe is rotatably provided in the annular assembly shell through a bearing. Two annular docking shells are provided on the convection pipe. Adjacent annular assembly shells and annular docking shells are clamped by bumps and grooves. A sealing gasket sleeved on the outer side of the convection pipe is provided between the bearing and the annular assembly shell.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, the heat exchange pipe fittings adopt a unique accommodating area and auxiliary heat exchange pipe accommodation design on the surface of the main heat exchange pipe. Compared with the conventional equipment that relies on a single or a small number of heat exchange pipes for heat exchange operations, the surface area participating in heat exchange is significantly increased in a limited space, and the heat exchange potential is maximally exerted, thereby improving the heat exchange efficiency with the water body and meeting the more efficient energy exchange requirements; Furthermore, through the connection pipe and the convection fan component, the flow of the refrigerant fluid in the pipeline drives the rotation of the follower rotating blade and the convection pipe, and then drives the rotation of the convection fan blade, thereby actively promoting the flow of the water body in the accommodation cavity, accelerating the contact frequency and area between the water body and the main heat exchange pipe and the auxiliary heat exchange pipe, avoiding the disorderly slowness of natural convection and the problem of insufficient local heat exchange. By actively enhancing the flow of the water body, the convection effect between the water body and the refrigerant is promoted, and the heat exchange efficiency is further improved. Moreover, in cooperation with the partition plate and the guide fan, when the water body flows, it can guide the water flow to flow along a predetermined path, form an orderly circulation between the upper and lower cavities, make the water flow through the heat exchange pipes more evenly, avoid the disorderly flow of the water flow in the accommodation cavity and the possible dead zones, further enhance the contact uniformity between the water flow and the main heat exchange pipe and the auxiliary heat exchange pipe, and ensure the stability and efficiency of heat exchange. Brief Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a front view sectional view of the main machine housing of the present invention; Figure 3 is a three-dimensional structural diagram of the heat exchange pipe component of the present invention; Figure 4 is a three-dimensional structural diagram of the partition plate and the guide fan of the present invention; Figure 5 is a three-dimensional structural diagram of the main heat exchange pipe and the auxiliary heat exchange pipe of the present invention; Figure 6 is Figure 5 an enlarged schematic view of part A shown; Figure 7 is a sectional structural diagram of the connection pipe and the convection fan component of the present invention; Figure 8 is an exploded view of the connection pipe and the convection fan component in a sectional state of the present invention.

[0017] In the figure: 1, main machine housing; 2, accommodation cavity; 3, heat exchange pipe component; 31, main heat exchange pipe; 32, accommodation area; 33, auxiliary heat exchange pipe; 34, refrigerant inlet box; 35, refrigerant outlet box; 36, annular pipe clamp; 4, connection pipe; 41, first pipe; 42, second pipe; 43, convection pipe; 44, annular assembly shell; 45, annular connection shell; 46, convex block; 47, groove; 48, sealing gasket; 5, convection fan component; 51, follower rotating blade; 52, convection fan blade; 6, partition plate; 7, circulation area; 8, guide fan. Detailed Description of the Invention

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] As Figure 1 , Figure 5 , Figure 6 shown, the present invention provides an integral air source heat pump water machine, including: A main machine housing 1 with an accommodation cavity 2 for accommodating water therein; A heat exchange pipe fitting 3 disposed in the accommodation cavity 2 in contact with the water body, and a refrigerant flows through its interior to exchange heat with the water body; Specifically, the main machine housing 1 further includes an assembly cavity for installing equipment such as compressors and fans. The assembly cavity is arranged above the accommodation cavity. This part mainly provides a stable installation space for key equipment such as compressors and fans to ensure that these equipment can operate normally within the main machine housing and play their important roles such as compression and ventilation and heat dissipation in the heat pump system. Therefore, no excessive indexing and detailed description are made for it; By arranging the heat exchange pipe fitting 3 in the accommodation cavity 2 of the main machine housing 1, the entire heat exchange system is integrated into the main machine, thereby reducing the number of system components and connecting pipes. Through reasonable design and layout of the heat exchange pipe fitting, this design can achieve efficient heat exchange in different heat exchange requirements, different scales and environments, and meet diverse user needs.

[0020] The heat exchange pipe fitting 3 includes: A main heat exchange pipe 31, on the surface of which a plurality of accommodation areas 32 are arranged in a circumferential array, and the accommodation areas 32 are centered on the axis of the main heat exchange pipe 31; Auxiliary heat exchange pipes 33, which are arranged in an array in the accommodation areas 32; Through this structural design, the number of heat exchange pipes and the total surface area are increased, so that more refrigerant can come into contact with the water body. In the limited space of the accommodation cavity 2, by increasing the number and arrangement density of the heat exchange pipes, the space is fully utilized, and a higher heat exchange efficiency per unit volume is achieved.

[0021] A refrigerant inlet box 34 for introducing the refrigerant to flow through the main heat exchange pipe 31 and the auxiliary heat exchange pipes 33; A refrigerant outlet box 35 for discharging the refrigerant after heat exchange in the main heat exchange pipe 31 and the auxiliary heat exchange pipes 33; The refrigerant inlet box 34 and the refrigerant outlet box 35 make the flow of the refrigerant in the main heat exchange pipe 31 and the auxiliary heat exchange pipes 33 more orderly, avoiding the disorder of the refrigerant flow.

[0022] As Figure 3, Figure 6 As shown in the figure, the cross-sectional structure of the main heat exchange tube 31 perpendicular to the axis is in the shape of a multi-pointed star. The area between adjacent corners of the main heat exchange tube 31 is the accommodation area 32. The auxiliary heat exchange tube 33 is arranged in the accommodation area 32 and is in close contact with the main heat exchange tube 31. The main heat exchange tube 31 and the auxiliary heat exchange tube 33 are adaptively clamped by an annular pipe clamp 36.

[0023] The multi-pointed star structure of the main heat exchange tube 31 increases the outer surface area of the heat exchange tube. Under the same volume, the main heat exchange tube 31 can have more direct contact with the surrounding water body, thus improving the heat exchange performance. Moreover, by utilizing the space of the main heat exchange tube 31, the auxiliary heat exchange tube 33 is reasonably arranged in the accommodation area 32 of the main heat exchange tube 31. The number of corners of the multi-pointed star of the auxiliary heat exchange tube 33 can be increased or decreased according to actual needs, and more refrigerant can also perform heat exchange with the water body in a smaller space, effectively improving the heat exchange efficiency per unit volume. More heat transfer can be achieved in the same space, enhancing the heat exchange performance.

[0024] And through the annular pipe clamp 36, each component forms a stable structure, preventing the displacement or loosening between the heat exchange tubes caused by factors such as the flow of fluid and the vibration of the equipment.

[0025] As Figures 2 to 3 shown, it also includes a docking pipe 4 connected to the main heat exchange tube 31 and the auxiliary heat exchange tube 33. A convection fan member 5 that rotates circumferentially along the axis of the docking pipe 4 is provided on the docking pipe 4. The convection fan member 5 is used to guide the flow of the water body.

[0026] The design of the docking pipe 4 and the convection fan member 5 can actively stir and guide the water body, causing the water body to flow. Compared with natural convection, it can significantly enhance the flow velocity and flow uniformity of the water body, enabling the water body areas that may originally be relatively static or have slow flow to also participate in the heat exchange process, avoiding local heat exchange dead zones in the water body. The water body can fully contact the main heat exchange tube 31 and the auxiliary heat exchange tube 33, thereby breaking the laminar flow state of the water body and forming a turbulent flow, increasing the mass transfer and heat transfer coefficients of the heat exchange, and improving the heat exchange efficiency.

[0027] As Figures 1 to 2 shown, it also includes a partition plate 6 arranged in the accommodation cavity 2. There are flow-through areas 7 between the opposite sides of the partition plate 6 and the accommodation cavity 2. The partition plate 6 divides the accommodation cavity 2 into an upper cavity and a lower cavity. The main heat exchange tube 31 and the auxiliary heat exchange tube 33 are arranged from the upper cavity through the flow-through area 7 to the inside of the lower cavity.

[0028] This structure helps to guide the overall flow direction of the water flow. After flowing through the upper cavity, the water flow enters the lower cavity through the flow-through area 7, forming an orderly flow path, avoiding the disorderly flow of the water flow, and enabling the water flow to circulate and fully contact the heat exchange tubes in different chambers.

[0029] As shown Figure 4 in the figure, it further includes a flow guiding fan 8 arranged in the circulation area 7, and the flow guiding fan 8 is rotatably arranged on the partition plate 6.

[0030] When the water flow passes through the flow guiding fan 8, the flow guiding fan 8 will conduct secondary flow guiding on the water flow, making the water flow more evenly distributed, avoiding the problems of too fast or too slow water flow around some heat exchange tubes caused by uneven water flow distribution, ensuring that the heat exchange tubes at different positions can uniformly conduct heat exchange, and improving the uniformity of heat exchange.

[0031] As shown Figure 1 and Figure 3 in the figure, the main heat exchange tube 31 and the secondary heat exchange tube 33 are both arranged in a serpentine shape, and docking pipes 4 and convection fan components 5 are arranged between the two ends of the main heat exchange tube 31 and the secondary heat exchange tube 33 and the refrigerant inlet box 34 and the refrigerant outlet box 35.

[0032] The serpentine arrangement can extend the flow path of the refrigerant in the heat exchange tube. Compared with the straight heat exchange tube, the bent structure of the serpentine tube increases the flow distance of the refrigerant in the tube, extends the time for the refrigerant to exchange heat with the surrounding water body, and effectively improves the sufficiency of heat exchange; and by arranging the docking pipes 4 and the convection fan components 5 at both ends, the flow path of the water body can be effectively guided and controlled, avoiding the phenomenon of water flow stagnation or short circuit at some parts.

[0033] Specifically, the docking pipes 4 and the convection fan components 5 can also be arranged on any section of the main heat exchange tube 31 and the secondary heat exchange tube 33, as long as their guiding effect is consistent with the water flow direction.

[0034] As shown Figure 7 in the figure, the docking pipe 4 includes a first pipe 41 and a second pipe 42, a convection pipe 43 is rotatably arranged between the first pipe 41 and the second pipe 42, the convection fan component 5 is arranged on the convection pipe 43, and the refrigerant flows through the first pipe 41, the convection pipe 43 and the second pipe 42, driving the convection fan component 5 to rotate as the refrigerant fluid flows.

[0035] The convection fan component 5 includes: a follower rotating blade 51 arranged on the inner wall of the convection pipe 43, and the follower rotating blade 51 and the convection pipe 43 are driven to rotate as the refrigerant fluid flows; a convection fan blade 52 arranged on the outer wall of the convection pipe 43, and the convection fan blade 52 rotates synchronously with the convection pipe 43 to drive the water body to flow.

[0036] This design utilizes the flowing energy of the refrigerant and does not require an additional power source to drive the convection fan component 5. When the refrigerant flows in the pipe, it drives the follower rotating blade 51 on the inner wall of the convection pipe 43 to rotate, and then drives the convection pipe 43 itself to rotate, enabling the convection fan component 5 to work automatically and realizing the automatic drive of the fluid.

[0037] As shownFigure 8 As shown in the figure, annular assembly shells 44 are provided on opposite sides of the first pipe 41 and the second pipe 42. The convection pipe 43 is rotatably arranged in the annular assembly shell 44 through a bearing. Two annular docking shells 45 are provided on the convection pipe 43. The adjacent annular assembly shell 44 and the annular docking shell 45 are clamped by a convex block 46 and a groove 47. A sealing gasket 48 sleeved on the outer side of the convection pipe 43 is provided between the bearing and the annular assembly shell 44.

[0038] Specifically, there are multiple convex blocks 46 and grooves 47 that are clamped with each other and are arranged parallel to the convection pipe 43. They form multiple sealing interfaces between the adjacent annular assembly shell 44 and the annular docking shell 45. By increasing the contact area and the sealing interfaces, and further cooperating with the sealing gasket 48, a collaborative seal is formed to provide a reliable sealing function.

[0039] The working principle and usage process of the present invention: The refrigerant is introduced into the first pipe 41, the second pipe 42, the convection pipe 43, the main heat exchange pipe 31 and the auxiliary heat exchange pipe 33 through the refrigerant inlet box 34. The refrigerant flows in the main heat exchange pipe 31 and the auxiliary heat exchange pipe 33 and exchanges heat with the water body in the accommodation cavity 2.

[0040] The flow of the refrigerant in the first pipe 41, the second pipe 42 and the convection pipe 43 will drive the follower vanes 51 on the inner wall of the convection pipe 43 to rotate, and then drive the convection pipe 43 itself to rotate. The rotation of the convection pipe 43 drives the convection fan blades 52 on its outer wall to rotate synchronously. The convection fan blades 52 start to guide the water body in the accommodation cavity 2 to promote the flow of the water body.

[0041] Moreover, the water body flows from the upper cavity of the accommodation cavity into the circulation area 7 and then into the lower cavity to realize the circulating flow of the water body between the upper and lower cavities. During the flowing process, the guide fan 8 in the circulation area 7 also starts to rotate under the push of the water flow to further guide the flow direction of the water flow, so that the water flow flows between the upper and lower cavities along a predetermined path; After exchanging heat with the water body, the refrigerant continues to flow and is finally exported through the refrigerant outlet box 35 to complete the entire heat exchange process.

[0042] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated air source heat pump water machine, characterized in that: include: A main body housing (1) having a receiving chamber (2) for receiving water; The heat exchange pipe (3) is arranged in the accommodating cavity (2) and in contact with the water body, and a refrigerant flows in the pipe to exchange heat with the water body; The heat exchange pipe (3) comprises: The main heat exchange tube (31) has a plurality of accommodation areas (32) arranged in a circumferential array on its surface, and the accommodation area (32) is centered on the axis of the main heat exchange tube (31); Auxiliary heat exchange tubes (33) are arranged in an array in the accommodation area (32); A refrigerant inlet box (34) for introducing refrigerant into the main heat exchange tube (31) and the auxiliary heat exchange tube (33) for circulation; The refrigerant outlet box (35) is used to export the refrigerant after heat exchange in the main heat exchange tube (31) and the auxiliary heat exchange tube (33).

2. The integrated air source heat pump water machine according to claim 1, characterized in that: The cross-sectional structure of the main heat exchange tube (31) perpendicular to the axis is a polygonal star shape, and the adjacent corners of the main heat exchange tube (31) are between the accommodating areas (32). The auxiliary heat exchange tube (33) is arranged in the accommodating area (32) and fits tightly with the main heat exchange tube (31). The main heat exchange tube (31) and the auxiliary heat exchange tube (33) are adapted and clamped by means of an annular tube clamp (36).

3. An integrated air source heat pump water machine according to claim 1 or 2, characterized in that: It also comprises a butt-joint pipe (4) connected to the main heat exchange pipe (31) and the auxiliary heat exchange pipe (33), wherein the butt-joint pipe (4) is provided with a convection fan (5) which rotates circumferentially around the axial direction of the butt-joint pipe (4), and the convection fan (5) is used to guide the flow of water.

4. The integrated air source heat pump water machine according to claim 3, characterized in that: It also includes a partition plate (6) arranged in the accommodating chamber (2), and a flow area (7) is provided between the two opposite sides of the partition plate (6) and the accommodating chamber (2), and the partition plate (6) divides the accommodating chamber (2) into an upper chamber and a lower chamber, and the main heat exchange tube (31) and the auxiliary heat exchange tube (33) are arranged from the upper chamber through the flow area (7) to the interior of the lower chamber.

5. The integrated air source heat pump water machine according to claim 4, characterized in that: It also includes a guide fan (8) disposed in the circulation area (7), wherein the guide fan (8) is rotatably disposed on the partition plate (6).

6. The integrated air source heat pump water machine according to claim 4, characterized in that: The main heat exchange tube (31) and the auxiliary heat exchange tube (33) are both arranged in a serpentine shape, and butt-joint tubes (4) and convection fans (5) are provided between the two ends of the main heat exchange tube (31) and the auxiliary heat exchange tube (33) and the refrigerant inlet box (34) and the refrigerant outlet box (35).

7. The integrated air source heat pump water machine according to claim 3, characterized in that: The butt-jointed tube (4) comprises a first tube (41) and a second tube (42); a convection tube (43) is rotatably provided between the first tube (41) and the second tube (42); the convection fan (5) is provided on the convection tube (43); a refrigerant flows through the first tube (41), the convection tube (43) and the second tube (42); the convection fan (5) is driven to rotate by the flow of the refrigerant fluid.

8. The integrated air source heat pump water machine according to claim 7, characterized in that: The convection fan (5) comprises: The follower rotor blade (51) is arranged on the inner wall of the convection tube (43), and drives the follower rotor blade (51) and the convection tube (43) to rotate as the refrigerant fluid flows; The convection blades (52) are arranged on the outer wall of the convection tube (43) and rotate synchronously with the convection tube (43) to drive the water to flow.

9. The integrated air source heat pump water machine according to claim 7, characterized in that: An annular assembly shell (44) is provided on one side opposite to the first tube (41) and the second tube (42); the convection tube (43) is rotatably arranged in the annular assembly shell (44) via a bearing; two annular docking shells (45) are provided on the convection tube (43); adjacent annular assembly shells (44) and annular docking shells (45) are clamped together by a protrusion (46) and a groove (47); and a sealing gasket (48) sleeved on the outside of the convection tube (43) is provided between the bearing and the annular assembly shell (44).

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