Heat pump casing heat exchange system

Abstract

This invention aims to provide a heat pump coaxial heat exchange system with a simple structure, low cost, and rapid assembly of its components, thereby improving production efficiency. The invention includes a heat exchanger, a heater, a water pump, and an expansion tank. The heat exchanger is equipped with an inlet pipe and an outlet pipe, which are connected. The output end of the water pump is detachably connected to the inlet pipe, and the outlet pipe is detachably connected to the input end of the heater. The output end of the heater is detachably connected to the input end of the expansion tank. This invention applies to the field of heat exchange equipment technology.

Description

Technical Field

[0001] This invention relates to the field of heat exchange equipment technology, and in particular to a heat pump jacket heat exchange system. Background Technology

[0002] Heat pump technology is a new energy technology that has garnered significant global attention in recent years. A pump, as we know it, is a mechanical device that can increase potential energy; for example, a water pump primarily lifts water from a lower to a higher level. A heat pump, however, is a device that extracts low-grade heat energy from the air, water, or soil in nature, and then uses electrical energy to provide usable high-grade heat energy. Existing heat pump systems typically use multiple welded copper pipes for their water circuits. However, copper is a relatively expensive material, and the welding process is complex, resulting in slow production speeds. Furthermore, human error leading to poor welding can cause leaks, resulting in low reliability.

[0003] A patent document with publication number CN206430249U discloses a shell-and-tube wall-hung boiler water system, which includes a shell-and-tube heat exchanger, a heating return pipe, a heating outlet pipe, a bathroom inlet pipe, a bathroom outlet pipe, an expansion tank, and a water pump. The heating outlet pipe is connected to the heating outlet of the shell-and-tube heat exchanger, the bathroom inlet pipe is connected to the bathroom inlet of the shell-and-tube heat exchanger, the bathroom outlet pipe is connected to the bathroom outlet of the shell-and-tube heat exchanger, the water pump outlet is connected to the heating return pipe via a water pipe, and the water pump inlet is connected to the heating return pipe. The expansion tank is installed on the heating return pipe. However, during the production process of this water system, the shell-and-tube heat exchanger, the expansion tank, and the water pump and their corresponding water pipes cannot be quickly connected together, resulting in a relatively slow production speed for the entire water system. If a heat pump shell-and-tube heat exchange system can be designed with a simple structure, low cost, and the ability to quickly assemble its components to improve production efficiency, the above problems can be solved well. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a heat pump jacket heat exchange system with simple structure, low cost, and quick assembly of various components, thereby improving production efficiency.

[0005] The technical solution adopted in this invention is as follows: This invention includes a heat exchanger, a heater, a water pump, and an expansion tank. The heat exchanger is provided with an inlet pipe and an outlet pipe. The inlet pipe is connected to the outlet pipe. The output end of the water pump is detachably connected to the inlet pipe. The outlet pipe is detachably connected to the input end of the heater. The output end of the heater is detachably connected to the input end of the expansion tank.

[0006] Furthermore, the heat pump coaxial heat exchange system also includes a first connector, which includes a return water connector, a first nut, a second nut, a first retaining ring, a first washer, a first pipe joint, and a first sealing ring. The output end of the water pump is provided with a first screw head, and the end of the inlet pipe is provided with a first limiting block and a second limiting block. The first sealing ring is fitted onto the inlet pipe and is located between the two first limiting blocks and the second limiting block. A first locking block is provided on the outer side of the first pipe joint, and a second locking block is provided on the inner side of the first pipe joint. The first pipe joint is fitted onto the end of the inlet pipe, and the first sealing ring is pressed between the inlet pipe and the first pipe joint. The first limiting block... The first washer is positioned between the first locking block and the first screw head, and a third locking block is provided on the inner side of the first nut. After the first nut and the first screw head are threaded together, the third locking block presses against the first locking block. The first pipe joint has a first mounting hole, and the first retaining spring passes through the first mounting hole and rests against the second limiting block. The outer side of the return water connector has a first locking protrusion, and the inner side of the second nut has a fourth locking block. The input end of the water pump has a second screw head. After the return water connector passes through the second nut, the second nut and the second screw head are threaded together. The fourth locking block rests against the first locking protrusion, and the return water connector is fixed on the external support frame.

[0007] Furthermore, the heat pump jacket heat exchange system also includes a second connector, which includes a first connecting pipe, a second retaining ring, a third retaining ring, a second sealing ring, and a third sealing ring. A third limiting block and a fourth limiting block are provided at the end of the outlet pipe. The second sealing ring is fitted onto the outlet pipe and is located between the third and fourth limiting blocks. A second pipe joint is provided at one end of the first connecting pipe. A fifth retaining block is provided inside the second pipe joint. The second pipe joint also has a second mounting hole. The second pipe joint is fitted onto the end of the outlet pipe. The second sealing ring is pressed between the outlet pipe and the second pipe joint. The third limiting block abuts against the fifth retaining block. The second retaining ring passes through... The second mounting hole rests against the third limiting block; the other end of the first connecting pipe is provided with a third pipe joint, the input end of the heater is provided with a first water pipe, the end of the first water pipe is provided with a fifth limiting block and a sixth limiting block, the third sealing ring is sleeved on the first water pipe, the third sealing ring is located between the fifth limiting block and the sixth limiting block, the inner side of the third pipe joint is provided with a sixth locking block, the third pipe joint is also provided with a third mounting hole, the third pipe joint is sleeved on the end of the first water pipe, the fifth limiting block rests against the sixth locking block, the third sealing ring is pressed between the first water pipe and the third pipe joint, and the third retaining spring passes through the third mounting hole and rests against the sixth limiting block.

[0008] Furthermore, the heat pump jacket heat exchange system also includes a third connector, which includes a second connecting pipe, a fourth retaining ring, a fifth retaining ring, a fourth sealing ring, and a fifth sealing ring. A second water pipe is provided at the output end of the heater. A seventh limiting block and an eighth limiting block are provided at the end of the second water pipe. The fourth sealing ring is fitted onto the second water pipe and is located between the seventh and eighth limiting blocks. A fourth pipe connector is provided at one end of the second connecting pipe. A seventh locking block is provided inside the fourth pipe connector. The fourth pipe connector also has a fourth mounting hole. The fourth pipe connector is fitted onto the end of the second water pipe, and the seventh limiting block abuts against the seventh locking block. The fourth sealing ring is pressed between the second water pipe and the fourth pipe joint. The fourth retaining ring passes through the fourth mounting hole and abuts against the eighth limiting block. A fifth pipe joint is also provided on the second connecting pipe. A third connecting pipe is provided at the input end of the expansion tank. A ninth limiting block is provided at the end of the third connecting pipe. The fifth sealing ring is sleeved on the third connecting pipe. An eighth retaining block is provided on the inner side of the fifth pipe joint. A fifth mounting hole is also provided on the fifth pipe joint. The fifth pipe joint is sleeved on the end of the third connecting pipe. The fifth sealing ring is pressed between the eighth retaining block and the ninth limiting block. The fifth retaining ring passes through the fifth mounting hole and abuts against the ninth limiting block.

[0009] Furthermore, the third connector also includes a drain connector, a sixth retaining ring, and a sixth sealing ring. The other end of the second connecting pipe is provided with a sixth pipe connector. The drain connector is provided with a first limiting boss. The sixth sealing ring is sleeved on the drain connector. The inner side of the sixth pipe connector is provided with a ninth locking block. The sixth pipe connector is also provided with a sixth mounting hole. The sixth pipe connector is sleeved on the drain connector. The first limiting boss presses the sixth sealing ring against the ninth locking block. The sixth retaining ring passes through the sixth mounting hole and rests against the first limiting boss. The second connecting pipe is also provided with a temperature sensing probe.

[0010] Furthermore, the heat pump jacket heat exchange system also includes a safety valve, the third connector also includes a seventh snap ring and a seventh sealing ring, the second connecting pipe is also provided with a seventh pipe joint, the seventh pipe joint is close to the sixth pipe joint, the safety valve joint is provided with a third limiting boss and a fourth limiting boss, the seventh sealing ring is sleeved on the safety valve joint, the seventh sealing ring is located between the third limiting boss and the fourth limiting boss, the inner side of the seventh pipe joint is provided with a tenth locking block, the seventh pipe joint is also provided with a seventh mounting hole, the seventh pipe joint is sleeved on the safety valve joint, the third limiting boss abuts against the tenth locking block, the seventh sealing ring is pressed between the seventh pipe joint and the safety valve joint, the seventh snap ring passes through the seventh mounting hole and abuts against the fourth limiting boss; the safety valve is provided with a water connection joint, the heat pump jacket heat exchange system also includes a drain pipe, the drain pipe is threadedly engaged with the water connection joint.

[0011] Furthermore, the heat pump jacket heat exchange system also includes a pressure sensor, the third connector also includes an eighth snap ring and an eighth sealing ring, the second connecting pipe is also provided with an eighth pipe joint, the eighth pipe joint is close to the fourth pipe joint, the pressure sensor joint is provided with a fifth limiting boss and a sixth limiting boss, the eighth sealing ring is sleeved on the pressure sensor joint, the eighth sealing ring is located between the fifth limiting boss and the sixth limiting boss, the inner side of the eighth pipe joint is provided with a second snap protrusion, the eighth pipe joint is also provided with an eighth mounting hole, the eighth pipe joint is sleeved on the pressure sensor joint, the fifth limiting boss abuts against the second snap protrusion, the eighth sealing ring is pressed between the eighth pipe joint and the pressure sensor joint, and the eighth snap ring passes through the eighth mounting hole and abuts against the sixth limiting boss.

[0012] Furthermore, the heat pump jacket heat exchange system also includes an exhaust valve and a flow switch. The third pipe joint is also provided with a first interface. The exhaust valve connector is threadedly engaged with the first interface. The first connecting pipe is also provided with a second interface. The flow switch connector is threadedly engaged with the second interface.

[0013] Furthermore, the heat exchanger is also provided with a refrigerant inlet pipe and a refrigerant outlet pipe. The refrigerant inlet pipe is connected to the refrigerant outlet pipe. A ninth pipe connector is provided at the end of the refrigerant inlet pipe, and a tenth pipe connector is provided at the end of the refrigerant outlet pipe. Both the ninth pipe connector and the tenth pipe connector are fixed on an external support frame.

[0014] Furthermore, the heat exchanger is a shell-and-tube heat exchanger, and the heater is an electrically assisted heater.

[0015] The beneficial effects of this invention are as follows: This invention includes a heat exchanger, a heater, a water pump, and an expansion tank. The heat exchanger is equipped with an inlet pipe and an outlet pipe, which are connected. The output end of the water pump is connected to the inlet pipe, the outlet pipe is connected to the input end of the heater, and the output end of the heater is connected to the input end of the expansion tank. This achieves the modular assembly of this invention, which is simple and quick to operate, greatly improving the production efficiency of this invention. Moreover, the interconnected water circuit structure can be made of plastic material, which greatly reduces the production cost. When a component is damaged or aged and needs to be replaced, the component can be disassembled and replaced, making subsequent maintenance more convenient. The water pump is used to increase the water pressure of the circulating water, so that the circulating water can quickly pass to the heat exchanger. The heat exchanger is used for heat exchange between the refrigerant and the circulating water, so that the circulating water becomes hot water, and then passes to the heater for further heating, so that the temperature of the circulating water reaches the preset value, and finally it is supplied to the external bathroom system. The expansion tank plays a role in balancing the water volume and pressure of the system. Attached Figure Description

[0016] Figure 1 This is a first-view perspective perspective view of the present invention;

[0017] Figure 2 This is a second-view perspective perspective view of the present invention;

[0018] Figure 3 This is a perspective view of the first connector;

[0019] Figure 4 This is an exploded view of the first connector;

[0020] Figure 5 This is a perspective view of the second connector;

[0021] Figure 6 This is an exploded view of the second connector;

[0022] Figure 7 This is a three-dimensional view of the first connecting pipe;

[0023] Figure 8 This is a perspective view of the third connector;

[0024] Figure 9 This is an exploded view of the third connector;

[0025] Figure 10 This is a first-view perspective perspective view of the second connecting pipe;

[0026] Figure 11 This is a second-view perspective perspective view of the second connecting pipe;

[0027] Figure 12 This is a third-view perspective perspective view of the second connecting pipe;

[0028] Figure 13 This is a fourth-view perspective perspective view of the second connecting pipe. Detailed Implementation

[0029] like Figures 1 to 13 As shown, in this embodiment, the present invention includes a heat exchanger 1, a heater 2, a water pump 3, and an expansion tank 4. The heat exchanger 1 is provided with an inlet pipe 5 and an outlet pipe 6, which are connected. The output end of the water pump 3 is detachably connected to the inlet pipe 5, and the outlet pipe 6 is detachably connected to the input end of the heater 2. The output end of the heater 2 is detachably connected to the input end of the expansion tank 4. The water pump 3 increases the water pressure of the circulating water, allowing it to quickly flow into the heat exchanger 1. The heat exchanger 1 facilitates heat exchange between the refrigerant and the circulating water, turning the circulating water into hot water, which is then further heated in the heater 2 to reach a preset temperature before being supplied to the external bathroom system. The expansion tank 4 serves to balance the system's water volume and pressure.

[0030] In this embodiment, the heat pump jacket heat exchange system further includes a first connector 7, which includes a return water connector 70, a first nut 71, a second nut 72, a first retaining ring 73, a first washer 74, a first pipe connector 75, and a first sealing ring 76. The output end of the water pump 3 is provided with a first screw head 31, and the end of the inlet pipe 5 is provided with a first limiting block 51 and a second limiting block 52. The first sealing ring 76 is sleeved on the inlet pipe 5 and is located between the two first limiting blocks 51 and the second limiting blocks 52. A first locking block is provided on the outer side of the first pipe connector 75, and a second locking block 752 is provided on the inner side of the first pipe connector 75. A first sealing ring 76 is pressed between the water inlet pipe 5 and the first pipe joint 75, and a first limiting block 51 abuts against the second locking block 752. A first washer 74 is disposed between the first locking block and the first screw head 31. A third locking block 711 is disposed on the inner side of the first nut 71. After the first nut 71 and the first screw head 31 are threaded together, the third locking block 711 presses against the first locking block. A first mounting hole 753 is provided on the first pipe joint 75. The first retaining spring 73 passes through the first mounting hole 753 and abuts against the second limiting block 52, thereby locking the water inlet pipe 5 and the first pipe joint 75 together. The second locking block 752 and the first retaining spring 73 respectively limit the first limiting block 51 and the second limiting block 52, preventing the water inlet pipe 5 and the first pipe connector 75 from becoming loose. When the first nut 71 is tightened, the third locking block 711 presses the first washer 74 onto the first screw head 31, thereby achieving a sealing effect. The first sealing ring 76 seals the connection between the water inlet pipe 5 and the first pipe connector 75, preventing water leakage. At the same time, the first sealing ring 76 is located between the two first limiting blocks 51 and the second limiting blocks 52, preventing the first sealing ring 76 from becoming misaligned during the locking process. When the first nut 71 is unscrewed and the retaining spring 73 is pulled out, the water inlet pipe 5 and the first pipe connector 75 can be easily separated.

[0031] In this embodiment, a first locking protrusion 701 is provided on the outer side of the return water connector 70, a fourth locking block 721 is provided on the inner side of the second nut 72, and a second screw head 32 is provided at the input end of the water pump 3. After the return water connector 70 passes through the second nut 72, the second nut 72 and the second screw head 32 are threadedly engaged. The fourth locking block 721 abuts against the first locking protrusion 701, and the return water connector 70 is fixed on the external support frame 10. When the second nut 72 is tightened, the fourth locking block 721 presses against the first locking protrusion 701, thereby pressing the return water connector 70 against the second screw head 32. When the second nut 72 is unscrewed, the return water connector 70 and the second screw head 32 can be easily separated.

[0032] In this embodiment, the heat pump jacket heat exchange system further includes a second connector 8, which includes a first connecting pipe 80, a second retaining ring 81, a third retaining ring 82, a second sealing ring 83, and a third sealing ring 84. The end of the outlet pipe 6 is provided with a third limiting block 61 and a fourth limiting block 62. The second sealing ring 83 is sleeved on the outlet pipe 6 and is located between the third limiting block 61 and the fourth limiting block 62. One end of the first connecting pipe 80 is provided with a second pipe joint 801. A fifth locking block 8011 is provided on the inner side of the connector 801. A second mounting hole 8012 is also provided on the second pipe connector 801. The second pipe connector 801 is sleeved on the end of the water outlet pipe 6. The second sealing ring 83 is pressed between the water outlet pipe 6 and the second pipe connector 801. The third limiting block 61 abuts against the fifth locking block 8011. The second retaining spring 81 passes through the second mounting hole 8012 and abuts against the third limiting block 61, thereby locking the water outlet pipe 6 and the second pipe connector 801 together. The fifth locking block 8011 and the second retaining spring 81 respectively limit the third limiting block 61 and the fourth limiting block 62 to prevent loosening between the water outlet pipe 6 and the second pipe connector 801; the second sealing ring 83 seals the connection between the water outlet pipe 6 and the second pipe connector 801 to prevent leakage; the second sealing ring 83 is located between the third limiting block 61 and the fourth limiting block 62 to prevent misalignment during locking or disassembly; when the second retaining spring 81 is pulled out, the water outlet pipe 6 and the second pipe connector 801 can be easily separated.

[0033] In this embodiment, a third pipe connector 802 is provided at the other end of the first connecting pipe 80, a first water pipe 21 is provided at the input end of the heater 2, a fifth limiting block 211 and a sixth limiting block 212 are provided at the end of the first water pipe 21, a third sealing ring 84 is sleeved on the first water pipe 21, the third sealing ring 84 is located between the fifth limiting block 211 and the sixth limiting block 212, and a sixth locking block 8021 is provided on the inner side of the third pipe connector 802. The pipe connector 802 is also provided with a third mounting hole 8022. The third pipe connector 802 is sleeved on the end of the first water pipe 21. The fifth limiting block 211 abuts against the sixth locking block 8021. The third sealing ring 84 is pressed between the first water pipe 21 and the third pipe connector 802. The third retaining spring 82 passes through the third mounting hole 8022 and abuts against the sixth limiting block 212, thereby locking the first water pipe 21 and the third pipe connector 802 together. The sixth locking block 8021 and the third retaining spring 82 respectively limit the fifth limiting block 211 and the sixth limiting block 212, preventing loosening between the first water pipe 21 and the third pipe connector 802. The third sealing ring 84 seals the connection between the first water pipe 21 and the third pipe connector 802, preventing leakage. The third sealing ring 84 is located between the fifth limiting block 211 and the sixth limiting block 212, preventing misalignment during connection or disassembly. After the third retaining spring 82 is pulled out, the first water pipe 21 and the third pipe connector 802 can be easily separated.

[0034] In this embodiment, the heat pump jacket heat exchange system further includes a third connector 9, which includes a second connecting pipe 90, a fourth retaining ring 91, a fifth retaining ring 92, a fourth sealing ring 93, and a fifth sealing ring 94. A second water pipe 22 is provided at the output end of the heater 2. A seventh limiting block 221 and an eighth limiting block 222 are provided at the end of the second water pipe 22. The fourth sealing ring 93 is sleeved on the second water pipe 22 and is located between the seventh limiting block 221 and the eighth limiting block 222. A fourth pipe is provided at one end of the second connecting pipe 90. The fourth pipe connector 901 has a seventh locking block 9011 on its inner side and a fourth mounting hole 9012 on its outer side. The fourth pipe connector 901 is sleeved on the end of the second water pipe 22. The seventh limiting block 221 abuts against the seventh locking block 9011. The fourth sealing ring 93 is pressed between the second water pipe 22 and the fourth pipe connector 901. The fourth retaining spring 91 passes through the fourth mounting hole 9012 and abuts against the eighth limiting block 222, thereby locking the fourth pipe connector 901 and the second water pipe 22 together. The seventh locking block 9011 and the fourth retaining spring 91 respectively limit the seventh limiting block 221 and the eighth limiting block 222, preventing loosening between the fourth pipe connector 901 and the second water pipe 22. The fourth sealing ring 93 seals the connection between the second water pipe 22 and the fourth pipe connector 901, preventing leakage. The fourth sealing ring 93 is located between the seventh limiting block 221 and the eighth limiting block 222, preventing misalignment during the locking process. After removing the fourth retaining spring 91, the second water pipe 22 and the fourth pipe connector 901 can be easily separated.

[0035] In this embodiment, a fifth pipe connector 902 is also provided on the second connecting pipe 90, a third connecting pipe 41 is provided at the input end of the expansion tank 4, a ninth limiting block 411 is provided at the end of the third connecting pipe 41, a fifth sealing ring 94 is sleeved on the third connecting pipe 41, an eighth locking block 9021 is provided on the inner side of the fifth pipe connector 902, a fifth mounting hole 9022 is also provided on the fifth pipe connector 902, the fifth pipe connector 902 is sleeved on the end of the third connecting pipe 41, the fifth sealing ring 94 is pressed between the eighth locking block 9021 and the ninth limiting block 411, and the fifth snap ring 92 passes through the fifth mounting hole 9022 and abuts against the ninth limiting block 411, thereby snapping the third connecting pipe 41 and the fifth pipe connector 902 together. The eighth locking block 9021 and the fifth retaining ring 92 limit the ninth limiting block 411 to prevent loosening between the third connecting pipe 41 and the fifth pipe joint 902; the fifth sealing ring 94 seals the connection between the third connecting pipe 41 and the fifth pipe joint 902 to prevent water leakage; when the fifth retaining ring 92 is pulled out, the third connecting pipe 41 and the fifth pipe joint 902 can be easily separated.

[0036] In this embodiment, the third connector 9 further includes a drain connector 95, a sixth retaining ring 96, and a sixth sealing ring 97. A sixth pipe connector 903 is provided at the other end of the second connecting pipe 90. A first limiting boss 951 is provided on the drain connector 95. The sixth sealing ring 97 is sleeved on the drain connector 95. A ninth locking block 9031 is provided on the inner side of the sixth pipe connector 903. A sixth mounting hole 9032 is also provided on the sixth pipe connector 903. The sixth pipe connector 903 is sleeved on the drain connector 95. The first limiting boss 951 presses the sixth sealing ring 97 against the ninth locking block 9031. The sixth retaining ring 96 passes through the sixth mounting hole 9032 and abuts against the first limiting boss 951, thereby locking the drain connector 95 and the sixth pipe connector 903 together. A temperature sensor 904 is also provided on the second connecting pipe 90 for detecting the temperature of the circulating water. The ninth locking block 9031 and the sixth retaining spring 96 limit the first limiting boss 951, preventing loosening between the drain connector 95 and the sixth pipe connector 903. The sixth sealing ring 97 is pressed between the ninth locking block 9031 and the first limiting boss 951, sealing the connection between the drain connector 95 and the sixth pipe connector 903 to prevent leakage. When the sixth retaining spring 96 is pulled out, the drain connector 95 and the sixth pipe connector 903 can be easily separated.

[0037] In this embodiment, the heat pump jacket heat exchange system further includes a safety valve 11, the third connector 9 further includes a seventh snap ring 98 and a seventh sealing ring 99, the second connecting pipe 90 is also provided with a seventh pipe joint 905, the seventh pipe joint 905 is close to the sixth pipe joint 903, the connector of the safety valve 11 is provided with a third limiting boss 111 and a fourth limiting boss 112, the seventh sealing ring 99 is sleeved on the connector of the safety valve 11, the seventh sealing ring 99 is located between the third limiting boss 111 and the fourth limiting boss 112, and the seventh... The inner side of the pipe connector 905 is provided with a tenth locking block 9051, and the seventh pipe connector 905 is also provided with a seventh mounting hole 9052. The seventh pipe connector 905 is sleeved on the connector of the safety valve 11. The third limiting boss 111 abuts against the tenth locking block 9051. The seventh sealing ring 99 is pressed between the seventh pipe connector 905 and the connector of the safety valve 11. The seventh retaining spring 98 passes through the seventh mounting hole 9052 and abuts against the fourth limiting boss 112, thereby locking the safety valve 11 and the seventh pipe connector 905 together. The tenth locking block 9051 and the seventh retaining ring 98 respectively limit the third limiting boss 111 and the fourth limiting boss 112, preventing loosening between the safety valve 11 and the seventh pipe connector 905; the seventh sealing ring 99 seals the connection between the seventh pipe connector 905 and the safety valve 11 connector, preventing leakage; the seventh sealing ring 99 is located between the third limiting boss 111 and the fourth limiting boss 112, preventing misalignment during the locking process; when the seventh retaining ring 98 is pulled out, the safety valve 11 and the seventh pipe connector 905 can be easily separated.

[0038] In this embodiment, the heat pump jacket heat exchange system further includes a pressure sensor 13, the third connector 9 further includes an eighth snap ring 100 and an eighth sealing ring 101, the second connecting pipe 90 is also provided with an eighth pipe joint 906, the eighth pipe joint 906 is close to the fourth pipe joint 901, the connector of the pressure sensor 13 is provided with a fifth limiting boss 131 and a sixth limiting boss 132, the eighth sealing ring 101 is sleeved on the connector of the pressure sensor 13, the eighth sealing ring 101 is located between the fifth limiting boss 131 and the sixth limiting boss 132, the third... The inner side of the eighth pipe connector 906 is provided with a second locking protrusion 9061, and the eighth pipe connector 906 is also provided with an eighth mounting hole 9062. The eighth pipe connector 906 is sleeved on the connector of the pressure sensor 13. The fifth limiting boss 131 abuts against the second locking protrusion 9061. The eighth sealing ring 101 is pressed between the eighth pipe connector 906 and the connector of the pressure sensor 13. The eighth retaining ring 100 passes through the eighth mounting hole 9062 and abuts against the sixth limiting boss 132, thereby locking the pressure sensor 13 and the eighth pipe connector 906 together. The second retaining protrusion 9061 and the eighth retaining spring 100 respectively limit the fifth limiting protrusion 131 and the sixth limiting protrusion 132, preventing loosening between the pressure sensor 13 and the eighth pipe connector 906. The eighth sealing ring 101 seals the connection between the pressure sensor 13 connector and the eighth pipe connector 906, preventing water leakage. The eighth sealing ring 101 is located between the fifth limiting protrusion 131 and the sixth limiting protrusion 132, preventing misalignment during the locking process. After removing the eighth retaining spring 100, the pressure sensor 13 and the eighth pipe connector 906 can be easily separated.

[0039] In this embodiment, the safety valve 11 is equipped with a water connector 113, and the heat pump jacket heat exchange system further includes a drain pipe 12, which is threadedly engaged with the water connector 113. The heat pump jacket heat exchange system also includes an exhaust valve 14 and a flow switch 15. The third pipe connector 802 is also equipped with a first interface 8023, and the connector of the exhaust valve 14 is threadedly engaged with the first interface 8023. The first connecting pipe 80 is also equipped with a second interface 803, and the connector of the flow switch 15 is threadedly engaged with the second interface 803. The drain pipe 12, the exhaust valve 14, and the flow switch 15 are all installed using threaded connections, simplifying operation and greatly improving production efficiency.

[0040] In this embodiment, the heat exchanger 1 is also provided with a refrigerant inlet pipe 16 and a refrigerant outlet pipe 17. The refrigerant inlet pipe 16 is connected to the refrigerant outlet pipe 17. A ninth pipe connector 161 is provided at the end of the refrigerant inlet pipe 16, and a tenth pipe connector 171 is provided at the end of the refrigerant outlet pipe 17. Both the ninth pipe connector 161 and the tenth pipe connector 171 are fixed on the external support frame 10.

[0041] In this embodiment, the heat exchanger 1 is a shell-and-tube heat exchanger, and the heater 2 is an electric auxiliary heater.

[0042] In this embodiment, the return water connector 70 is threadedly connected to the input end of the water pump 3, the output end of the water pump 3 is snapped into the inlet pipe 5, the outlet pipe 6 is snapped into the input end of the heater 2 through the first connecting pipe 80, the output end of the heater 2 and the drain connector 95 are both snapped into the second connecting pipe 90, the second connecting pipe 90 is snapped into the third connecting pipe 41 set on the expansion tank 4, the pressure sensor 13 and the safety valve 11 are both snapped into the second connecting pipe 90, the drain pipe 12 is threaded into the safety valve 11, and the air vent valve 14 and the flow switch 15 are both threaded into the first connecting pipe. This realizes the splicing assembly of the present invention, which is simple and quick to operate and greatly improves the production efficiency of the present invention. Moreover, the first connecting pipe 80, the second connecting pipe 90 and the third connecting pipe 41 can all be made of plastic material, which greatly reduces the production cost. When a component is damaged or aged and needs to be replaced, the component can be disassembled and replaced, making subsequent maintenance more convenient.

Claims

1. A heat pump coaxial heat exchange system, comprising a heat exchanger (1), a heater (2), a water pump (3), and an expansion tank (4), wherein the heat exchanger (1) is provided with an inlet pipe (5) and an outlet pipe (6), the inlet pipe (5) being connected to the outlet pipe (6), characterized in that: The output end of the water pump (3) is detachably connected to the inlet pipe (5), the outlet pipe (6) is detachably connected to the input end of the heater (2), and the output end of the heater (2) is detachably connected to the input end of the expansion tank (4); the heater (2) is an electric auxiliary heater; the heat pump jacket heat exchange system also includes a first connector (7), which includes a return water connector (70), a first nut (71), a second nut (72), a first snap ring (73), a first washer (74), a first pipe joint (75), and a first sealing ring (76). The output end of the water pump (3) is provided with a first screw head (31), and the end of the water inlet pipe (5) is provided with a first limiting block (51) and a second limiting block (52). The first sealing ring (76) is sleeved on the water inlet pipe (5) and is located between the two first limiting blocks (51) and the second limiting blocks (52). The outer side of the first pipe joint (75) is provided with a first locking block, and the inner side of the first pipe joint (75) is provided with a second locking block (752). The first pipe joint (75) is sleeved on the end of the water inlet pipe (5). The first sealing ring... (76) is pressed between the water inlet pipe (5) and the first pipe joint (75), the first limiting block (51) abuts against the second locking block (752), the first washer (74) is disposed between the first locking block and the first screw head (31), the inner side of the first nut (71) is provided with a third locking block (711), after the first nut (71) and the first screw head (31) are threaded together, the third locking block (711) presses against the first locking block, the first pipe joint (75) is provided with a first mounting hole (753), and the first retaining ring (73) passes through the... The first mounting hole (753) is abutted against the second limiting block (52); the outer side of the return water connector (70) is provided with a first locking protrusion (701), the inner side of the second nut (72) is provided with a fourth locking block (721), the input end of the water pump (3) is provided with a second screw head (32), the return water connector (70) passes through the second nut (72), the second nut (72) and the second screw head (32) are threaded together, the fourth locking block (721) abuts against the first locking protrusion (701), and the return water connector (70) is fixed on the external support frame (10).

2. The heat pump coaxial heat exchange system according to claim 1, characterized in that: The heat pump jacket heat exchange system further includes a second connector (8), which includes a first connecting pipe (80), a second retaining ring (81), a third retaining ring (82), a second sealing ring (83), and a third sealing ring (84). The end of the water outlet pipe (6) is provided with a third limiting block (61) and a fourth limiting block (62). The second sealing ring (83) is sleeved on the water outlet pipe (6) and is located between the third limiting block (61) and the fourth limiting block (62). The first connecting pipe (80)... One end of the outlet pipe (6) is provided with a second pipe connector (801), and the inner side of the second pipe connector (801) is provided with a fifth locking block (8011). The second pipe connector (801) is also provided with a second mounting hole (8012). The second pipe connector (801) is sleeved on the end of the outlet pipe (6). The second sealing ring (83) is pressed between the outlet pipe (6) and the second pipe connector (801). The third limiting block (61) abuts against the fifth locking block (8011). The second retaining ring (81) passes through the second mounting hole (8012). 8012) is backed against the third limiting block (61); the other end of the first connecting pipe (80) is provided with a third pipe joint (802), the input end of the heater (2) is provided with a first water pipe (21), the end of the first water pipe (21) is provided with a fifth limiting block (211) and a sixth limiting block (212), the third sealing ring (84) is sleeved on the first water pipe (21), the third sealing ring (84) is located between the fifth limiting block (211) and the sixth limiting block (212), the third pipe joint (8012) is backed against the third limiting block (61); the other end of the first connecting pipe (80) is provided with a third pipe joint (802), the input end of the heater (2) is provided with a first water pipe (21), the end of the first water pipe (21) is provided with a fifth limiting block (211) and a sixth limiting block (212), the third pipe joint (8012) is backed against the third limiting block (61); the other end of the first connecting pipe (80) is provided with a third pipe joint (802), the third sealing ring (8012) is sleeved on the first water pipe (21), the third sealing ring (8012) is located between the fifth limiting block (211) and the ... The inner side of 02) is provided with a sixth locking block (8021), and the third pipe connector (802) is also provided with a third mounting hole (8022). The third pipe connector (802) is sleeved on the end of the first water pipe (21). The fifth limiting block (211) abuts against the sixth locking block (8021). The third sealing ring (84) is pressed between the first water pipe (21) and the third pipe connector (802). The third snap ring (82) passes through the third mounting hole (8022) and abuts against the sixth limiting block (212).

3. The heat pump coaxial heat exchange system according to claim 1, characterized in that: The heat pump jacket heat exchange system further includes a third connector (9), which includes a second connecting pipe (90), a fourth retaining ring (91), a fifth retaining ring (92), a fourth sealing ring (93), and a fifth sealing ring (94). The output end of the heater (2) is provided with a second water pipe (22), and the end of the second water pipe (22) is provided with a seventh limiting block (221) and an eighth limiting block (222). The fourth sealing ring (93) is sleeved on the second water pipe (22). 93) Located between the seventh limiting block (221) and the eighth limiting block (222), one end of the second connecting pipe (90) is provided with a fourth pipe joint (901), the inner side of the fourth pipe joint (901) is provided with a seventh locking block (9011), the fourth pipe joint (901) is also provided with a fourth mounting hole (9012), the fourth pipe joint (901) is sleeved on the end of the second water pipe (22), the seventh limiting block (221) abuts against the seventh locking block (9011), the fourth sealing The ring (93) is pressed between the second water pipe (22) and the fourth pipe joint (901), and the fourth snap ring (91) passes through the fourth mounting hole (9012) and abuts against the eighth limiting block (222); a fifth pipe joint (902) is also provided on the second connecting pipe (90), a third connecting pipe (41) is provided at the input end of the expansion tank (4), a ninth limiting block (411) is provided at the end of the third connecting pipe (41), and the fifth sealing ring (94) is sleeved on the third connecting pipe. On the pipe (41), an eighth locking block (9021) is provided on the inner side of the fifth pipe connector (902), and a fifth mounting hole (9022) is also provided on the fifth pipe connector (902). The fifth pipe connector (902) is sleeved on the end of the third connecting pipe (41). The fifth sealing ring (94) is pressed between the eighth locking block (9021) and the ninth limiting block (411). The fifth snap ring (92) passes through the fifth mounting hole (9022) and abuts against the ninth limiting block (411).

4. The heat pump jacket heat exchange system according to claim 3, characterized in that: The third connector (9) also includes a drain connector (95), a sixth snap ring (96), and a sixth sealing ring (97). The other end of the second connecting pipe (90) is provided with a sixth pipe connector (903). The drain connector (95) is provided with a first limiting boss (951). The sixth sealing ring (97) is sleeved on the drain connector (95). The inner side of the sixth pipe connector (903) is provided with a ninth locking block (9031). The sixth pipe connector (903) is also provided with a sixth mounting hole (9032). The sixth pipe connector (903) is sleeved on the drain connector (95). The first limiting boss (951) presses the sixth sealing ring (97) against the ninth locking block (9031). The sixth snap ring (96) passes through the sixth mounting hole (9032) and rests against the first limiting boss (951). The second connecting pipe (90) is also provided with a temperature sensor (904).

5. The heat pump jacket heat exchange system according to claim 4, characterized in that: The heat pump jacket heat exchange system also includes a safety valve (11), the third connector (9) also includes a seventh snap ring (98) and a seventh sealing ring (99), the second connecting pipe (90) is also provided with a seventh pipe joint (905), the seventh pipe joint (905) is close to the sixth pipe joint (903), the connector of the safety valve (11) is provided with a third limiting boss (111) and a fourth limiting boss (112), the seventh sealing ring (99) is sleeved on the connector of the safety valve (11), the seventh sealing ring (99) is located between the third limiting boss (111) and the fourth limiting boss (112), and the inner side of the seventh pipe joint (905) is provided with a tenth locking block (9051). The seventh pipe connector (905) is also provided with a seventh mounting hole (9052). The seventh pipe connector (905) is sleeved on the connector of the safety valve (11). The third limiting boss (111) abuts against the tenth locking block (9051). The seventh sealing ring (99) is pressed between the seventh pipe connector (905) and the connector of the safety valve (11). The seventh snap ring (98) passes through the seventh mounting hole (9052) and abuts against the fourth limiting boss (112). The safety valve (11) is provided with a water circuit connector (113). The heat pump jacket heat exchange system also includes a drain pipe (12). The drain pipe (12) is threadedly engaged with the water circuit connector (113).

6. The heat pump jacket heat exchange system according to claim 3, characterized in that: The heat pump jacket heat exchange system also includes a pressure sensor (13), the third connector (9) also includes an eighth snap ring (100) and an eighth sealing ring (101), the second connecting pipe (90) is also provided with an eighth pipe joint (906), the eighth pipe joint (906) is close to the fourth pipe joint (901), the connector of the pressure sensor (13) is provided with a fifth limiting boss (131) and a sixth limiting boss (132), the eighth sealing ring (101) is sleeved on the connector of the pressure sensor (13), the eighth sealing ring (101) is located between the fifth limiting boss (131) and the sixth limiting boss (132). Between the bosses (132), the inner side of the eighth pipe connector (906) is provided with a second locking protrusion (9061), and the eighth pipe connector (906) is also provided with an eighth mounting hole (9062). The eighth pipe connector (906) is sleeved on the connector of the pressure sensor (13). The fifth limiting boss (131) abuts against the second locking protrusion (9061). The eighth sealing ring (101) is pressed between the eighth pipe connector (906) and the connector of the pressure sensor (13). The eighth retaining ring (100) passes through the eighth mounting hole (9062) and abuts against the sixth limiting boss (132).

7. The heat pump coaxial heat exchange system according to claim 2, characterized in that: The heat pump jacket heat exchange system also includes an exhaust valve (14) and a flow switch (15). The third pipe joint (802) is also provided with a first interface (8023). The connector of the exhaust valve (14) is threadedly engaged with the first interface (8023). The first connecting pipe (80) is also provided with a second interface (803). The connector of the flow switch (15) is threadedly engaged with the second interface (803).

8. The heat pump coaxial heat exchange system according to claim 1, characterized in that: The heat exchanger (1) is also provided with a refrigerant inlet pipe (16) and a refrigerant outlet pipe (17). The refrigerant inlet pipe (16) is connected to the refrigerant outlet pipe (17). The end of the refrigerant inlet pipe (16) is provided with a ninth pipe connector (161), and the end of the refrigerant outlet pipe (17) is provided with a tenth pipe connector (171). The ninth pipe connector (161) and the tenth pipe connector (171) are both fixed on the external support frame (10).

9. The heat pump coaxial heat exchange system according to claim 1, characterized in that: The heat exchanger (1) is a shell-and-tube heat exchanger.

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