A centrifugal heat pump with heat fluid regeneration compressor

Abstract

This invention relates to the field of centrifugal heat pump technology, and discloses a centrifugal heat pump with a heat fluid regenerative compressor. It includes a centrifugal compressor and a condenser housing. Multiple heat exchange tubes are evenly distributed within the condenser housing. Each heat exchange tube includes a U-shaped connecting portion with serrated heat exchange sections at both ends. A flow equalization plate is located within the condenser housing near the inlet pipe. Multiple flow equalization holes are linearly and evenly spaced on the flow equalization plate, and multiple support members are evenly distributed below the flow equalization plate. The heat exchange tubes are fixedly inserted through the support members. The flow equalization plate initially and evenly distributes the gas into each support member and between adjacent support members. The encounter of lateral and vertical airflow slows the airflow velocity, allowing more time for heat exchange with the heat exchange tubes. This convection, combined with the serrated heat exchange tubes, prevents the formation of a liquid film on the tube wall, further improving heat exchange efficiency.

Description

Technical Field

[0001] This invention relates to the field of centrifugal heat pump technology, and more particularly to a centrifugal heat pump with a heat fluid regenerative compressor. Background Technology

[0002] The hot fluid regenerative centrifugal heat pump, as a high-efficiency thermal energy equipment for large-scale commercial and industrial applications, has the core advantage of using a centrifugal compressor to achieve high-flow refrigerant delivery and conversion, and integrating hot fluid regenerative technology to recover and utilize system waste heat, thereby significantly improving overall energy efficiency and meeting large-scale heating and cooling needs.

[0003] The condensers of this type of heat pump system generally adopt a classic shell-and-tube structure. Their standard operating procedure is as follows: high-temperature, high-pressure gaseous refrigerant, compressed by a centrifugal compressor, is transported to the shell-side space of the condenser through a single inlet pipe. When the gaseous refrigerant enters the shell-side space from the inlet pipe at the top of the condenser, due to limitations imposed by fluid diffusion characteristics and the flow field distribution within the shell, the refrigerant cannot quickly and uniformly cover the entire shell-side area; instead, it accumulates in large quantities in the central space around the inlet pipe. This phenomenon causes the heat exchange tubes in the middle of the condenser to preferentially contact the high-temperature gaseous refrigerant, resulting in a double heat exchange shortcoming: On the one hand, after the gaseous refrigerant comes into contact with the low-temperature heat exchange tube wall, it will quickly condense to form a tightly attached liquid film. Since the thermal conductivity of the liquid film is much lower than that of the metal heat exchange tube and the gaseous refrigerant, it is equivalent to building a high-resistance heat layer at the heat exchange interface. The gaseous refrigerant flowing through it must penetrate the liquid film to complete the condensation, which greatly increases the heat exchange resistance and significantly reduces the condensation efficiency. On the other hand, the heat exchange tubes at both ends of the condenser shell side are far from the refrigerant inlet. When the gaseous refrigerant arrives, it has already partially condensed into liquid or the flow rate has dropped sharply. This causes the tube bundles at both ends to be in a state of "insufficient contact" for a long time and cannot fully participate in heat exchange. As a result, the heat exchange area of ​​the entire tube bundle designed for the condenser is not efficiently utilized, the overall heat exchange rate is seriously reduced, and the condensing temperature control of the heat pump system is indirectly affected, which further increases the operating energy consumption of the centrifugal compressor. Summary of the Invention

[0004] Given the problem of uneven refrigerant distribution in the condenser leading to low heat exchange efficiency in existing technologies, a centrifugal heat pump with a heat fluid regenerative compressor is proposed.

[0005] Its purpose is to distribute the gaseous refrigerant evenly within the condenser shell and support components through the flow equalization plate. The airflow within the support components flows out through the convection holes and encounters the vertical airflow, thereby slowing down the airflow and allowing the gas to further fill the condenser shell. At the same time, the serrated heat exchange tubes help to avoid the adhesion of liquid film, thus improving the heat exchange efficiency.

[0006] The technical solution of the present invention is a centrifugal heat pump with a regenerative thermal compressor, comprising a centrifugal compressor and a condenser housing. Multiple heat exchange tubes are evenly distributed within the condenser housing. Each heat exchange tube includes a U-shaped connecting portion, with serrated heat exchange portions at both ends. A flow equalization plate is provided within the condenser housing near the inlet pipe. Multiple flow equalization holes are linearly and equally spaced on the flow equalization plate. Multiple support members are evenly distributed below the flow equalization plate. The heat exchange tubes are fixedly inserted through the support members. The support members have a hollow structure and their tops communicate with the corresponding flow equalization holes.

[0007] The support member has an oval structure and abuts against the inner wall of the condenser shell. The support member includes multiple vertically arranged support frames. The support frames are arranged vertically through the body, and two adjacent support frames are engaged. The support frames have slots that match the serrated upper part of the heat exchange section, and the side walls of the support frames have convection holes with an elongated structure.

[0008] Furthermore, a flow divider is fixedly connected to the center of the top surface of the flow equalization plate, and the flow divider has a herringbone structure.

[0009] Furthermore, except for the support frame located in the middle position, all other support frames have a positioning groove on one side facing the support frame in the middle position. A positioning block is fixed on another support frame adjacent to the positioning groove, and the positioning block is inserted into the positioning groove.

[0010] Furthermore, a rectangular frame is fixed on the bottom surface of the flow equalization plate at the position of the flow equalization hole, and the uppermost support frame is inserted and engaged with the corresponding rectangular frame.

[0011] Furthermore, the bottom of the support frame located at the lowest side has a closed structure, and multiple drainage holes are provided at the bottom of the support frame located at the lowest side.

[0012] Furthermore, a guide plate is provided in the flow equalization hole corresponding to the support frame. The guide plate includes a flat plate rotatably connected to the flow equalization hole. Wings are fixed at both ends of the flat plate in the length direction. Four connecting rods are provided on the top surface of the flow equalization plate. Two of the radially arranged connecting rods are rotatably connected to the corresponding wings. Electric push rods are fixedly installed on both sides of the top of the condenser shell. The piston rod of the electric push rod moves downward and extends through into the interior of the condenser shell. A slide rod is fixedly connected to the lower end of the piston rod of the electric push rod. A limit seat is slidably connected to the slide rod. The limit seat is fixedly connected to the corresponding flat plate.

[0013] Furthermore, a plurality of U-shaped adjustment plates are provided between the two radially arranged connecting rods. Adjustment holes are provided on the adjustment plates at positions corresponding to the flow equalization holes. The width of the adjustment holes is greater than the width of the flow equalization holes. Vertical sliding holes are provided on the side walls of the adjustment plates. A driving rod is slidably disposed in the sliding holes. The driving rod is connected and fixed to the corresponding connecting rod.

[0014] Furthermore, multiple pressure sensors are fixedly installed on the top and bottom surfaces of the flow equalization plate, and the pressure sensors are signal-connected to the electric push rod.

[0015] Furthermore, guide strips are provided on both the upper and lower sides of the convection hole. The guide strips are fixedly connected to the side wall of the support frame. Multiple jet surfaces with different curvatures are provided on the side of the guide strip facing the convection hole, and there is a smooth transition between two adjacent jet surfaces.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The flow equalization plate and the support components together form a precise two-way airflow distribution and enhancement system. The flow equalization plate initially and evenly distributes the gas into each support component and between two adjacent supports. The airflow velocity is slowed down by the encounter of the horizontal and vertical airflows, so that there is more time for heat exchange with the heat exchange tubes. At the same time, this convection combined with the serrated heat exchange tubes can prevent the formation of a liquid film on the outside of the tube wall, which can further improve the heat exchange efficiency.

[0018] 2. By changing the pitch angle of the guide vane, the gas flow rate entering the support can be directly and in real time adjusted, thereby dynamically changing the ratio of horizontal to vertical airflow. This allows for adaptive adjustment based on the compressor's operating conditions, ensuring that the condenser is always kept in the optimal heat exchange state.

[0019] 3. The guide strip further guides the transverse airflow, allowing the coverage of the transverse airflow to be automatically adjusted under different operating conditions. This ensures that the airflow mixes with the longitudinal mainstream in the most suitable way, improving the full contact between the airflow and the heat exchange tubes, avoiding the generation of vortices, and enhancing the long-term reliability of the equipment. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the condenser shell of the present invention;

[0022] Figure 3 This is a side view of the internal structure of the condenser housing of the present invention;

[0023] Figure 4 This is a schematic diagram of the heat exchange tube structure of the present invention;

[0024] Figure 5 This is a schematic diagram showing the disassembled structure of the support member of the present invention;

[0025] Figure 6 This is a schematic diagram of the lowermost support frame structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the flow equalization plate and air pressure sensor structure of the present invention;

[0027] Figure 8 This is a schematic diagram of the flow guide plate and adjustment plate structure of the present invention;

[0028] Figure 9 This is a schematic cross-sectional view of the guide strip structure of the present invention.

[0029] In the picture:

[0030] 1. Centrifugal compressor; 2. Condenser shell; 3. Heat exchange tube; 31. Connecting part; 32. Heat exchange part; 4. Flow equalization plate; 5. Flow equalization hole; 6. Flow divider plate; 7. Support component; 71. Support frame; 72. Slot; 73. Convection hole; 74. Positioning groove; 75. Positioning block; 76. Drain hole; 8. Rectangular frame; 9. Guide plate; 91. Flat plate; 92. Wing plate; 10. Connecting rod; 11. Electric push rod; 12. Slide rod; 13. Limit seat; 14. Adjusting plate; 15. Adjusting hole; 16. Sliding hole; 17. Drive rod; 18. Pressure sensor; 19. Guide strip; 20. Jet surface. Detailed Implementation

[0031] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] Example 1, referring to Figures 1-5This invention provides a centrifugal heat pump with a regenerative compressor, comprising a centrifugal compressor 1 and a condenser housing 2. Multiple heat exchange tubes 3 are evenly distributed within the condenser housing 2. Each heat exchange tube 3 includes a U-shaped connecting portion 31, with serrated heat exchange portions 32 at both ends. A flow equalizing plate 4 is provided within the condenser housing 2 near the inlet pipe. Multiple flow equalizing holes 5 are linearly and evenly spaced on the flow equalizing plate 4, and multiple support members 7 are evenly distributed below the flow equalizing plate 4. The heat exchange tube 3 is fixedly installed through the support member 7. The support member 7 has a cavity structure and its top is connected to the corresponding flow equalization hole 5. The support member 7 has an oval structure and abuts against the inner wall of the condenser shell 2. The support member 7 includes multiple vertically arranged support frames 71. The support frames 71 are arranged vertically through the tube. Two adjacent support frames 71 are engaged with each other. The support frame 71 has a slot 72 that matches the serrated upper part of the heat exchange section 32. The side wall of the support frame 71 has a convection hole 73 with a long strip structure.

[0033] After the gaseous refrigerant enters the condenser housing 2 through the inlet pipe, it first fills the space formed by the flow equalization plate 4 and the upper part of the condenser housing 2, and then flows downward through the flow equalization holes 5. A portion of the gas flows directly into the space between two adjacent support members 7, while the other portion enters the interior of the support member 7. Because the interior space of the support member 7 is smaller than the space between two adjacent support members 7, the gas entering the support member 7 will flow out laterally through the convection holes 73. The laterally moving airflow encounters the vertically downward airflow, which slows down the vertical airflow, allowing the gas to flow more fully. The space between two adjacent support members 7 is filled, thus ensuring that the gas is in full contact with all heat exchange tubes 3, effectively improving the heat exchange efficiency. At the same time, the heat exchange section 32 of the heat exchange tube 3 is designed with a serrated shape, and its lower serrated part is located between two adjacent support members 7. Under the guidance of the pipe shape and the influence of the lateral airflow, the liquid film formed on the outer wall of the heat exchange tube 3 will gather at the lower end of the serrated part 32 to form droplets and drip downwards, thereby avoiding the adverse effect of the liquid film on the outer wall of the heat exchange tube 3 on the heat exchange efficiency. Overall, it achieves the beneficial effects of improving heat exchange efficiency and ensuring heat exchange stability.

[0034] The flow equalization plate 4 initially distributes the high-temperature, high-pressure gaseous working fluid from the compressor, preventing the "flow deviation" phenomenon caused by the gas directly rushing into one side of the condenser shell 2. Through the convection holes 73, some gas is allowed to flow laterally from the side, intertwining and colliding with the mainstream gas flowing out from the bottom of the flow equalization plate 4, creating turbulence between the tube bundles. This turbulence effectively breaks the liquid film on the surface of the heat exchange tubes 3, thereby enhancing the convective heat transfer process between the gaseous refrigerant and the heat exchange tubes 3. It also increases the residence time of the gas at the heat exchange tubes 3, further improving the heat exchange effect. The cooperation between the flow equalization plate 4 and the support component 7 integrates the simple "gas distribution plate" and "tube bundle support frame" into an intelligent fluid management and structural support system. It not only evenly distributes the fluid but also actively enhances heat transfer by creating directional flow and turbulence, while ensuring the long-term stable operation of the heat exchange tubes 3 under harsh operating conditions.

[0035] Understandably, the total cross-sectional area of ​​the multiple flow equalization holes 5 is greater than the cross-sectional area of ​​the air inlet pipe of the condenser housing 2. This design allows the gas entering the space formed by the flow equalization plate 4 and the upper part of the condenser housing 2 to flow rapidly downward through the multiple flow equalization holes 5. This avoids the gas from accumulating above the flow equalization plate 4 and also prevents back pressure from being generated at the air inlet pipe position, which would lead to an increase in the power consumption of the centrifugal compressor 1.

[0036] Reference Figure 2 A flow equalization plate 4 is fixedly connected to the middle of the top surface of the flow equalization plate 4. The flow equalization plate 6 has a herringbone structure.

[0037] Specifically, the flow divider 6 is located directly below the inlet pipe of the condenser shell 2. It has a herringbone structure and can guide the gaseous refrigerant through two symmetrical inclined surfaces on the top surface. This guiding effect enables the gaseous refrigerant to move quickly to both ends of the flow equalization plate 4, avoiding the airflow from concentrating and flowing downward through the flow equalization hole 5 closest to the inlet pipe. This further ensures that the airflow distribution of all flow equalization holes 5 is uniform, laying the foundation for sufficient contact between the gas and the heat exchange tube 3, and helping to improve the overall heat exchange efficiency of the condenser.

[0038] Reference Figure 5 In the multiple support frames 71, except for the support frame 71 located in the middle position, the other support frames 71 are provided with positioning grooves 74 on one side facing the support frame 71 in the middle position. A positioning block 75 is fixed on another support frame 71 adjacent to the positioning groove 74, and the positioning block 75 is inserted into the positioning groove 74.

[0039] Specifically, the support component 7, through this stacked structure, can facilitate the installation of the heat exchange tube 3, enabling quick and easy installation of the heat exchange tube 3. On the other hand, its overall structure is simple, which can effectively reduce the difficulty of the production process and avoid the cost increase and efficiency loss caused by complex processes.

[0040] Reference Figure 5 , Figure 7 A rectangular frame 8 is fixed on the bottom surface of the flow equalization plate 4 at the position of the flow equalization hole 5, and the support frame 71 on the uppermost side is inserted and matched with the corresponding rectangular frame 8.

[0041] Specifically, the rectangular frame 8 is connected to the corresponding flow equalization hole 5. When the airflow flows downward through the flow equalization plate 4, the airflow direction remains stable under the guidance of the rectangular frame 8, avoiding disordered flow. After the heat exchange tube 3 and the support 7 are spliced ​​and installed, the flow equalization plate 4 is inserted into the corresponding support frame 71 through the rectangular frame 8 to achieve quick installation.

[0042] Reference Figure 6 The bottom of the support frame 71 located at the bottom is a closed structure, and multiple drainage holes 76 are provided at the bottom of the support frame 71 located at the bottom.

[0043] Specifically, the droplets formed by the gaseous refrigerant entering the support 7 and contacting the heat exchange tube 3 located inside the support 7 can flow downward along the inner wall of the support 7 and be discharged through the drain hole 76.

[0044] It should be noted that the cross-sectional area of ​​the drain hole 76 is smaller than that of the convection hole 73, and the gas entering the support 7 is preferentially discharged through the convection hole 73.

[0045] Example 2, refer to Figure 7 , Figure 8 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: a guide plate 9 is provided in the flow equalization hole 5 corresponding to the support frame 71. The guide plate 9 includes a flat plate 91 rotatably connected to the flow equalization hole 5. Wing plates 92 are fixed at both ends of the flat plate 91 in the length direction. Four connecting rods 10 are provided on the top surface of the flow equalization plate 4. Two connecting rods 10 arranged radially are rotatably connected to the corresponding wing plates 92. Electric push rods 11 are fixedly installed on both sides of the top of the condenser shell 2. The piston rod of the electric push rod 11 moves downward and extends through into the interior of the condenser shell 2. A slide rod 12 is fixedly connected to the lower end of the piston rod of the electric push rod 11. A limit seat 13 is slidably connected to the slide rod 12. The limit seat 13 is connected and fixed to the corresponding flat plate 91.

[0046] Specifically, when the electric push rod 11 controls the piston rod to rise and fall, it drives the slide rod 12 to move synchronously. The slide rod 12, in conjunction with the limiting seat 13, can control the rotation of the corresponding guide plate 9. At the same time, under the limiting action of the connecting rod 10, multiple guide plates 9 can achieve synchronous rotation. By adjusting the pitch angle of the guide plate 9, the gas flow rate entering the support member 7 can be directly controlled, thereby dynamically adjusting the airflow distribution ratio between two adjacent support members 7 and inside the support member 7. This adjustment method can adaptively adjust according to real-time parameters such as the pressure and flow rate of the gaseous refrigerant in the condenser shell 2, ensuring that even when the centrifugal compressor 1 is under different operating conditions, the gas in the condenser and the heat exchange tube 3 can always maintain a highly efficient heat exchange state, ultimately keeping the heat exchange effect of the condenser stably at the optimal level.

[0047] In this design, the piston rod of the electric push rod 11 penetrates the condenser housing at point 2. Dynamic sealing is achieved through a "stepped sealing cavity + multi-layer sealing assembly": the outer layer uses a polyurethane dustproof ring to block external impurities; the middle layer uses a double-lip Y-shaped sealing ring to tightly adhere to the piston rod using elastic force; the inner layer uses a PTFE guide ring to limit radial oscillation and assist in sealing; and finally, it is pre-tightened and fixed by a flange gland. This structure satisfies the vertical movement requirements of the piston rod while ensuring the seal between the housing and the piston rod, making it suitable for condenser operating scenarios.

[0048] Reference Figure 7 , Figure 8 Between two radially arranged connecting rods 10, there are multiple U-shaped adjustment plates 14. Adjustment holes 15 are opened on the adjustment plates 14 at the positions corresponding to the flow equalization holes 5. The width of the adjustment holes 15 is greater than the width of the flow equalization holes 5. Vertical sliding holes 16 are opened on the side wall of the adjustment plates 14. A driving rod 17 is slidably arranged in the sliding hole 16. The driving rod 17 is connected and fixed to the corresponding connecting rod 10.

[0049] Specifically, the bottom surface of the regulating plate 14 slides in contact with the top surface of the flow equalization plate 4. When the guide plate 9 rotates, it drives the connecting rod 10 to move. The driving rod 17 on the connecting rod 10 cooperates with the sliding hole 16 of the regulating plate 14, which can drive the regulating plate 14 to translate. While the pitch angle of the guide plate 9 changes, the translation of the regulating plate 14 can control the overlap between the regulating hole 15 and the corresponding flow equalization hole 5, thereby ensuring that the flow rate through all flow equalization holes 5 is maintained within a reasonable range, effectively avoiding back pressure above the flow equalization plate 4, ensuring smooth gas flow, and further enhancing the precise control capability of the airflow in conjunction with the guide plate 9, helping the condenser to operate stably and efficiently under different operating conditions.

[0050] Reference Figure 7The changes of the guide plate 9 and the regulating plate 14 are as follows: When the guide plate 9 is raised, the gas flow rate entering the support member 7 increases, the regulating plate 14 moves to the right, and the solid part of the regulating plate 14 covers the corresponding flow equalization hole 5, making the cross-sectional area of ​​the flow equalization hole 5 smaller, thereby reducing the flow rate at the flow equalization hole 5; conversely, when the guide plate 9 is lowered, the gas flow rate entering the support member 7 decreases, the regulating plate 14 moves to the right, the overlap between the regulating hole 15 and the corresponding flow equalization hole 5 increases, making the cross-sectional area of ​​the flow equalization hole 5 larger, thereby increasing the flow rate at the flow equalization hole 5.

[0051] Reference Figure 7 Multiple pressure sensors 18 are fixedly installed on the top and bottom surfaces of the flow equalization plate 4, and the pressure sensors 18 are connected to the electric push rod 11.

[0052] Specifically, the pressure sensor 18 is used to monitor the pressure state inside the condenser housing 2 in real time. Both the pressure sensor 18 and the electric push rod 11 are connected to an external control module. The control module controls the lifting and lowering amplitude of the electric push rod 11 according to the pressure change signal. The rest of the structure is the same as that in Embodiment 1.

[0053] Example 3, referring to Figure 5 , Figure 9 This is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that: guide strips 19 are provided on both the upper and lower sides of the convection hole 73. The guide strips 19 are fixedly connected to the side wall of the support frame 71. Multiple jet surfaces 20 with different curvatures are provided on the side of the guide strips 19 facing the convection hole 73. There is a smooth transition between two adjacent jet surfaces 20.

[0054] Specifically, when the airflow flows out through the convection hole 73, it will flow along the guide strip 19 on the side wall of the support frame 71. Since the guide strip 19 has multiple jet surfaces 20 with different curvatures on the side facing the convection hole 73, and there is a smooth transition between adjacent jet surfaces 20, the gas with the same flow velocity will diffuse at different angles when passing through these jet surfaces 20. This multi-angle diffusion design allows the gaseous refrigerant to be distributed more evenly in the condenser shell 2, further reducing the dead angle of gas distribution, ensuring that it is in full contact with more heat exchange tubes 3, and providing a guarantee for improving the overall heat exchange efficiency of the condenser.

[0055] When the angle of the guide plate 9 changes, thus affecting the airflow velocity at the convection hole 73, the gas will separate at different positions on the jet surface 20: when the gas velocity is low, the airflow will separate earlier in the region of the jet surface 20 with a larger curvature (closer to the side wall of the support frame 71); when the gas velocity is high, the airflow can adhere to the jet surface 20 for a longer time until it separates in the region of smaller curvature (far from the side wall of the support frame 71). This design can adaptively change the diffusion range of the lateral airflow according to the gas velocity in the support member 7, thereby dynamically controlling the airflow direction in real time, avoiding the generation of vortices when the vertical and lateral airflows meet, and effectively preventing vibration problems in the condenser. The rest of the structure is the same as that in Embodiment 2.

[0056] Based on embodiments 1-3, the working principle of this invention is as follows: The high-temperature, high-pressure gaseous refrigerant discharged from the centrifugal compressor 1 enters the interior of the condenser housing 2 through the inlet pipe. It is first guided to diffuse towards both ends by the herringbone-shaped flow divider 6 on the top surface of the flow equalization plate 4, and then flows downwards through the flow equalization holes 5. The gas is divided into two paths: one path directly enters the space between adjacent support members 7, and the other path enters the interior of the support member 7. The internal gas flows out laterally through the convection holes 73, intertwining with the vertical airflow to form turbulence. This both slows down the airflow to ensure it fills the space and makes full contact with the heat exchange tube 3, and disrupts the liquid film on the outer wall of the heat exchange tube 3. The serrated heat exchange section 32 of the heat exchange tube 3 guides the liquid film to gather into droplets, preventing the liquid film from affecting heat exchange.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A heat fluid recuperative compressor centrifugal machine heat pump comprising a centrifugal compressor (1) and a condenser casing (2), characterized in that, The condenser shell (2) is uniformly distributed with a plurality of heat exchange pipes (3), the heat exchange pipe (3) includes a U-shaped structure of the connecting part (31), the connecting part (31) is provided with a sawtooth-shaped heat exchange part (32) at both ends, the condenser shell (2) is provided with a flow distribution plate (4) near one side of the air inlet pipe, a plurality of flow distribution holes (5) are linearly and equidistantly arranged on the flow distribution plate (4), and a plurality of supporting members (7) are equidistantly distributed below the flow distribution plate (4), the heat exchange pipe (3) is fixedly penetrated through the supporting member (7), the supporting member (7) is in a cavity structure and the top is communicated with the corresponding flow distribution hole (5); The supporting member (7) is in a waist-round structure, the supporting member (7) is in abutment with the inner wall of the condenser shell (2), the supporting member (7) includes a plurality of vertically arranged supporting frames (71), the supporting frame (71) is arranged in a vertical direction, the adjacent two supporting frames (71) are connected in a clamping manner, the supporting frame (71) is provided with a clamping groove (72) matched with the sawtooth-shaped upper part of the heat exchange part (32), and the side wall of the supporting frame (71) is provided with a convection hole (73) in a strip-shaped structure.

2. The heat-fluid recuperative compressor centrifuge-type heat pump according to claim 1, characterised in that, The top surface of the flow distribution plate (4) is fixedly connected with a flow distribution plate (6), and the flow distribution plate (6) is in a herringbone structure.

3. The heat-fluid recuperative compressor centrifuge-type heat pump according to claim 1, characterized in that, Except for the supporting frame (71) located in the middle position, the remaining supporting frames (71) are provided with a positioning groove (74) on one side of the supporting frame (71) located in the middle position, and the other supporting frame (71) adjacent to the positioning groove (74) is fixedly provided with a positioning block (75), and the positioning block (75) is inserted into the positioning groove (74).

4. The hot fluid recuperative compressor centrifuge heat pump of claim 1, wherein, The bottom surface of the flow distribution plate (4) is fixedly provided with a rectangular frame (8) at the position of the flow distribution hole (5), and the supporting frame (71) located at the uppermost side is inserted into the corresponding rectangular frame (8).

5. The hot fluid recuperative compressor centrifuge heat pump of claim 1, wherein, The bottom of the supporting frame (71) located at the lowermost side is in a closed structure, and a plurality of drainage holes (76) are arranged on the bottom of the supporting frame (71) located at the lowermost side.

6. The hot fluid recuperative compressor centrifuge heat pump of claim 1, wherein, A guide plate (9) is arranged in the flow distribution hole (5) corresponding to the supporting frame (71), the guide plate (9) includes a flat plate (91) rotatably connected with the flow distribution hole (5), wing plates (92) are fixedly arranged at both ends of the flat plate (91) in the length direction, four connecting rods (10) are arranged on the top surface of the flow distribution plate (4), two connecting rods (10) arranged in the radial direction are rotatably connected with the corresponding wing plates (92), and electric push rods (11) are fixedly arranged on both sides of the top of the condenser shell (2), the piston rod of the electric push rod (11) is downwardly and penetratingly extended to the inside of the condenser shell (2), a sliding rod (12) is fixedly connected with the lower end of the piston rod of the electric push rod (11), a limiting seat (13) is slidably connected with the sliding rod (12), and the limiting seat (13) is fixedly connected with the corresponding flat plate (91).

7. The heat-fluid recuperative compressor centrifuge-type heat pump according to claim 6, characterised in that, Two said connecting rods (10) arranged radially between the setting of a plurality of U-shaped structure adjusting plate (14), the adjusting plate (14) on the corresponding position of the flow hole (5) is provided with adjusting hole (15), the adjusting hole (15) width is greater than the width of the flow hole (5), the adjusting plate (14) side wall is provided with vertical slide hole (16), the slide hole (16) is provided with a drive rod (17) slidingly, the drive rod (17) is connected with the corresponding connecting rod (10) fixedly.

8. The heat-fluid recuperative compressor centrifuge-type heat pump according to claim 6, characterised in that, The top surface and the bottom surface of the flow equalizing plate (4) are fixedly installed with a plurality of air pressure sensors (18), and the air pressure sensors (18) are signal connected with the electric push rod (11).

9. The hot fluid recuperative compressor centrifuge heat pump of claim 1, wherein, The convection hole (73) is provided with a flow guide strip (19) on the upper side and the lower side, the flow guide strip (19) is fixedly connected to the side wall of the supporting frame (71), and the side of the flow guide strip (19) facing the convection hole (73) is provided with a plurality of jet flow curved surfaces (20) with different curvatures, and adjacent two jet flow curved surfaces (20) are smoothly transitioned.

Images