Geothermal energy integrated heat pump unit
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 西安市安居新能源发展有限公司
- Filing Date
- 2023-02-23
- Publication Date
- 2026-07-21
Smart Images

Figure CN116221868B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the technical field of heat pump units, and in particular relates to a geothermal integrated heat pump unit. Background Technology
[0002] A heat pump unit is a technology that uses a small amount of high-grade electrical energy input to transfer low-grade heat energy to high-grade heat energy and complete heat exchange with the building.
[0003] In the actual use of geothermal pumps, the surface water temperature varies with the seasons and geographical environment. In summer, the surface water temperature generally does not exceed 32℃, which is sufficient for cooling. However, in winter, especially in northern regions, the surface water temperature is very low, and it may even freeze. When this very cold water enters the system for heat exchange, the temperature drops further. If the temperature difference during heat exchange is too large, there is a risk of freezing, blockage, or pipe bursting, which will affect the operation of the entire system. To prevent such failures, heat pump systems are generally equipped with inlet water temperature protection devices. When the water temperature is lower than the set value, the unit will shut down for protection. When the water temperature recovers to above the set value, the unit will restart. If the water temperature fluctuates repeatedly, the unit will frequently start and stop, which will seriously affect the lifespan of the unit. On the other hand, it is also impractical to keep the unit in a shutdown state for a long time due to consistently low water temperature, as this would affect the stable operation of the entire geothermal pump.
[0004] Therefore, we propose an integrated geothermal heat pump unit to solve the above problems. Summary of the Invention
[0005] The purpose of this invention is to address the above-mentioned problems by providing an integrated geothermal heat pump unit.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a geothermal integrated heat pump unit, comprising a unit body and a water intake pipe and a water return pipe installed on the unit body, wherein a water temperature monitoring self-triggering start mechanism is fixedly installed on the front end wall of the water intake pipe, an automatic salt addition mechanism is also installed on the water intake pipe, a brine storage mechanism is also provided on one side of the automatic salt addition mechanism, and a self-driven magnetic suction transmission mechanism that is bidirectionally connected to the automatic salt addition mechanism and the brine storage mechanism is also provided on the water intake pipe; The return water pipe is also fixedly connected to a treatment pipe, which is equipped with a salt filtration and recovery mechanism and an intermittent rotation switching mechanism. Both the return water pipe and the treatment pipe are symmetrically equipped with two electrically controlled on / off valves.
[0007] In the aforementioned integrated geothermal heat pump unit, the water temperature monitoring self-triggering start mechanism includes a water-passing cylinder, a heat-conducting cylinder is fixedly nested inside the water-passing cylinder, a substrate is bonded to the outside of the heat-conducting cylinder, a barium titanate temperature-sensitive variable resistance layer is fixedly bonded to the outside of the substrate, an electrode is attached to the outside of the barium titanate temperature-sensitive variable resistance layer, and a protective shell covering the heat-conducting cylinder is fixedly connected to the outside of the water-passing cylinder, and an electromagnetic relay is fixedly installed on the outside of the protective shell.
[0008] In the aforementioned integrated geothermal heat pump unit, the automatic salting mechanism includes a mixing tank. Multiple salting heads are fixedly inserted into the upper end of the mixing tank. The upper ends of the multiple salting heads are fixedly connected to the same salting pipe. An extraction pipe is fixedly connected to the side wall of the salting pipe. One end of the extraction pipe is connected to a brine storage mechanism. An extraction pump is also installed on the extraction pipe. The extraction pump is fixedly installed on the outside of the mixing tank. A first stirring rod is rotatably connected to the bottom of the mixing tank. Multiple first stirring blades are symmetrically fixedly connected to the rod wall of the first stirring rod.
[0009] In the above-mentioned integrated geothermal heat pump unit, the brine storage mechanism includes a storage tank. The upper end of the storage tank is fixedly connected to a brine supply pipe and a water supply pipe. The bottom of the storage tank is also rotatably connected to a second stirring rod. Multiple second stirring blades are symmetrically fixedly connected to the rod wall of the second stirring rod.
[0010] In the aforementioned integrated geothermal heat pump unit, the self-driven magnetic transmission mechanism includes a drive housing. A rotating shaft is rotatably connected to one side wall of the drive housing. A drive impeller is fixedly connected to the shaft wall inside the drive housing. Both ends of the rotating shaft extend through the drive housing. A U-shaped positioning plate is fixedly connected to the lower ends of the mixing tank and the storage tank. A through hole is opened in the horizontal part of the U-shaped positioning plate, and a connecting shaft is rotatably sleeved in the corresponding through hole via a bearing. One end of the rotating shaft is connected to the lower end of the connecting shaft via a bevel gear assembly. A first connecting seat is fixedly connected to the lower ends of the first stirring rod and the second stirring rod. A second connecting seat is fixedly connected to the upper end of the connecting shaft. A connecting permanent magnet is fixedly embedded on the lower side of the first connecting seat, and a connecting electromagnetic block is fixedly embedded on the upper side of the second connecting seat.
[0011] In the aforementioned integrated geothermal heat pump unit, the salt filtration and recovery mechanism includes a cylindrical filter box. The inner walls of opposite upper and lower sides of the filter box are rotatably connected to the same drive shaft. The shaft wall of the drive shaft is connected to the same arc-shaped plate via multiple reinforcing rods. Two metal filter plates are fixedly nested on the side wall of the arc-shaped plate. A polyamide nanofiltration membrane is fixedly applied to the outer side of the metal filter plates. Three sealing contact plates, staggered with the metal filter plates, are also fixedly connected to the outer side of the arc-shaped plate. One end of each sealing contact plate seals against the inner side of the filter box. Multiple flushing nozzles, corresponding to the positions of the metal filter plates, are fixedly nested on the upper side wall of the filter box. Two salt return pipes are symmetrically connected to the bottom of the filter box. The lower end of each salt return pipe is fixedly connected to the upper end of a storage tank. A solenoid valve is installed on each salt return pipe. A rotary adjustment mechanism for driving the drive shaft is fixedly installed at the upper end of the filter box.
[0012] In the aforementioned integrated geothermal heat pump unit, the intermittent rotation switching mechanism includes a power housing. The upper and lower opposite inner walls of the power housing are rotatably connected to the same force-bearing shaft. A force-bearing impeller is fixedly sleeved on the shaft wall inside the power housing. A reduction gearbox is also fixedly installed at the upper end of the power housing. The upper end of the force-bearing shaft is fixedly connected to the input end of the reduction gearbox. A pressing rod is fixedly connected to the upper output end of the reduction gearbox. A circular end cap is fixedly connected to the upper end of the power housing through a support frame. Two pressing trigger switches are symmetrically fixedly connected to the inner wall of the circular end cap.
[0013] In the aforementioned integrated geothermal heat pump unit, the rotary adjustment mechanism includes two side plates symmetrically fixedly connected to the upper end of the filter box. Two limiting slide rods are symmetrically fixedly connected between the two side plates. The same moving block is slidably sleeved on the two limiting slide rods. A positioning seat is fixedly installed on the upper side of the moving block. Magnetic permanent magnet blocks are fixedly embedded on both the front and rear sides of the positioning seat. Magnetic electromagnet blocks are fixedly installed on the upper side wall of the side plates. A transmission rack is fixedly connected to one end of the moving block. The upper end of the transmission shaft extends through the filter box and is fixedly connected to a transmission gear that meshes with the transmission rack.
[0014] Compared with existing technologies, the advantages of this invention are as follows: 1. Through the set unit body, water intake pipe, water return pipe and water temperature monitoring self-trigger start mechanism, it can automatically monitor the water flow temperature and automatically start the subsequent treatment operation when the water flow temperature is too low, which has the advantages of timely treatment and energy saving.
[0015] 2. Through the automatic salt addition mechanism, brine storage mechanism, and self-driven magnetic drive mechanism, salt can be automatically mixed into the water flow when it is too cold, thereby lowering the freezing point of the water flow. This effectively avoids the risk of freezing, blockage, or pipe bursting caused by the further temperature drop of the low-temperature water flow after heat exchange. It also eliminates the need for frequent start-stop cycles, making the entire heat pump system more stable. Furthermore, it can efficiently clean the inner wall of the pipes, ensuring smooth flow inside the pipes.
[0016] 3. Through the set salt filtration and recovery mechanism, intermittent rotation switching mechanism and rotation adjustment mechanism, the salt in the heat exchanged water can be separated again, and the salt can be effectively recycled and reused, saving operating costs and having good economic efficiency. It can also automatically switch the filtration mechanism and clean itself, making it convenient to use.
[0017] In summary, this invention can automatically monitor the water flow temperature and automatically initiate subsequent processing operations when the water flow temperature is too low. This effectively avoids the risk of freezing, blockage, or pipe bursting caused by further temperature reduction of the low-temperature water flow after heat exchange. It also eliminates the need for frequent start-ups and shutdowns, making the entire heat pump system more stable. Furthermore, it can further separate the salt in the water flow after heat exchange and effectively recycle the salt, saving on operating costs. Attached Figure Description
[0018] Figure 1 This is a structural schematic diagram of an integrated geothermal heat pump unit provided by the present invention; Figure 2 This is a schematic diagram of the structure of a water temperature monitoring self-triggering start mechanism for an integrated geothermal heat pump unit provided by the present invention; Figure 3 This is a schematic diagram of the structure of a self-driven magnetic transmission mechanism for an integrated geothermal heat pump unit provided by the present invention; Figure 4 This is a top cross-sectional view of a salt filtration and recovery mechanism for an integrated geothermal heat pump unit provided by the present invention. Figure 5 This is a schematic diagram of the intermittent rotation switching mechanism of an integrated geothermal heat pump unit provided by the present invention; Figure 6 This is a schematic diagram of the rotating adjustment mechanism of an integrated geothermal heat pump unit provided by the present invention.
[0019] In the diagram: 1. Unit body; 2. Water intake pipe; 3. Water return pipe; 4. Water temperature monitoring self-triggering start mechanism; 41. Water passage cylinder; 42. Heat conduction cylinder; 43. Substrate; 44. Barium titanate temperature-sensitive variable resistance layer; 45. Electrode; 46. Protective shell; 47. Electromagnetic relay; 5. Automatic salt addition mechanism; 51. Mixing tank; 52. Salt addition head; 53. Salt addition pipe; 54. Extraction pipe; 55. Extraction pump; 56. First stirring rod; 57. First stirring blade; 6. Brine storage mechanism; 61. Storage tank; 62. Salt replenishment pipe; 63. Water replenishment pipe; 64. Second stirring rod; 65. Second stirring blade; 7. Self-driven magnetic transmission mechanism; 71. Drive housing; 72. Rotating shaft; 73. Drive impeller; 74. U-shaped positioning plate; 75. Connecting shaft; 76. Bevel gear assembly; 77. First connecting seat; 78. 79. Connecting permanent magnet block; 710. Connecting electromagnetic block; 8. Salt filtration and recovery mechanism; 81. Filter box; 82. Drive shaft; 83. Reinforcing rod; 84. Arc plate; 85. Metal filter plate; 86. Polyamide nanofiber filter membrane; 87. Sealing contact plate; 88. Flushing nozzle; 89. Salt return pipe; 9. Intermittent rotation switching mechanism; 91. Power housing; 92. Force-bearing shaft; 93. Force-bearing impeller; 94. Gearbox; 95. Press rod; 96. Support frame; 97. Circular end cap; 98. Press trigger switch; 10. Rotation adjustment mechanism; 101. Side plate; 102. Limiting slide bar; 103. Moving block; 104. Positioning seat; 105. Magnetic permanent magnet block; 106. Magnetic electromagnetic block; 107. Drive rack; 108. Drive gear; 11. Processing pipe; 12. Electrically controlled opening and closing valve. Detailed Implementation
[0020] The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.
[0021] like Figure 1-6 As shown, an integrated geothermal heat pump unit includes a unit body 1 and a water intake pipe 2 and a water return pipe 3 installed on the unit body 1. A water temperature monitoring self-triggering start mechanism 4 is fixedly installed on the front end wall of the water intake pipe 2. The water temperature monitoring self-triggering start mechanism 4 includes a water passage cylinder 41, a heat conduction cylinder 42 is fixedly nested inside the water passage cylinder 41, a substrate 43 is bonded to the outside of the heat conduction cylinder 42, a barium titanate temperature-sensitive variable resistance layer 44 is fixedly bonded to the outside of the substrate 43, and an electrode 45 is attached to the outside of the barium titanate temperature-sensitive variable resistance layer 44. A protective shell 46 covering the heat conduction cylinder 42 is also fixedly connected to the outside of the water passage cylinder 41, and an electromagnetic relay 47 is fixedly installed on the outside of the protective shell 46.
[0022] An automatic salting mechanism 5 is also installed on the water intake pipe 2. The automatic salting mechanism 5 includes a mixing tank 51. Multiple salting heads 52 are fixedly inserted into the upper end of the mixing tank 51. The upper ends of the multiple salting heads 52 are fixedly connected to the same salting pipe 53. The side wall of the salting pipe 53 is fixedly connected to an extraction pipe 54. One end of the extraction pipe 54 is connected to the brine storage mechanism 6. An extraction pump 55 is also installed on the extraction pipe 54. The extraction pump 55 is fixedly installed on the outside of the mixing tank 51. A first stirring rod 56 is rotatably connected to the bottom of the mixing tank 51. Multiple first stirring blades 57 are symmetrically fixedly connected to the rod wall of the first stirring rod 56.
[0023] The automatic salting mechanism 5 is also provided with a brine storage mechanism 6 on one side. The brine storage mechanism 6 includes a storage tank 61. The upper end of the storage tank 61 is fixedly connected to a salt replenishment pipe 62 and a water replenishment pipe 63. The bottom of the storage tank 61 is also rotatably connected to a second stirring rod 64. Multiple second stirring blades 65 are symmetrically fixedly connected to the rod wall of the second stirring rod 64.
[0024] The water intake pipe 2 is also equipped with a self-driven magnetic drive mechanism 7 that is bidirectionally connected to the automatic salt addition mechanism 5 and the brine storage mechanism 6. The self-driven magnetic drive mechanism 7 includes a drive housing 71. A rotating shaft 72 is rotatably connected to the opposite side wall of the drive housing 71. A drive impeller 73 is fixedly connected to the shaft wall of the rotating shaft 72 inside the drive housing 71. Both ends of the rotating shaft 72 extend through the drive housing 71. A U-shaped positioning plate 74 is fixedly connected to the lower end of the mixing box 51 and the storage box 61. A through hole is opened in the horizontal part of the U-shaped positioning plate 74, and a connecting shaft 75 is rotatably sleeved in the corresponding through hole through a bearing. One end of the rotating shaft 72 is connected to the lower end of the connecting shaft 75 through a bevel gear assembly 76. A first connecting seat 77 is fixedly connected to the lower end of the first stirring rod 56 and the second stirring rod 64. A second connecting seat 78 is fixedly connected to the upper end of the connecting shaft 75. A connecting permanent magnet block 79 is fixedly embedded on the lower side of the first connecting seat 77, and a connecting electromagnetic block 710 is fixedly embedded on the upper side of the second connecting seat 78.
[0025] A treatment pipe 11 is also fixedly connected to the return water pipe 3. A salt filtration and recovery mechanism 8 is installed on the treatment pipe 11. The salt filtration and recovery mechanism 8 includes a cylindrical filter box 81. The inner walls of the upper and lower opposite sides of the filter box 81 are rotatably connected to the same drive shaft 82. The shaft wall of the drive shaft 82 is connected to the same arc-shaped plate 84 through multiple reinforcing rods 83. Two metal filter plates 85 are fixedly nested on the side wall of the arc-shaped plate 84. A polyamide nanofiltration membrane is fixedly applied to the outer side of the metal filter plates 85. 86. Three sealing contact plates 87, which are interleaved with the metal filter plate 85, are fixedly connected to the outer side of the arc plate 84. One end of the sealing contact plate 87 is sealed against the inner side of the filter box 81. Multiple flushing nozzles 88, which correspond to the positions of the metal filter plate 85, are fixedly nested on the upper side wall of the filter box 81. Two salt return pipes 89 are symmetrically fixedly connected to the bottom of the filter box 81. The lower end of the salt return pipe 89 is fixedly connected to the upper end of the storage box 61. A solenoid valve is also installed on the salt return pipe 89.
[0026] A rotary adjustment mechanism 10 for driving the drive shaft 82 is fixedly installed at the upper end of the filter box 81. The rotary adjustment mechanism 10 includes two side plates 101 that are symmetrically fixedly connected to the upper end of the filter box 81. Two limiting slide rods 102 are symmetrically fixedly connected between the two side plates 101. The same moving block 103 is slidably sleeved on the two limiting slide rods 102. A positioning seat 104 is fixedly installed on the upper side of the moving block 103. Magnetic permanent magnet blocks 105 are fixedly embedded on both the front and rear sides of the positioning seat 104. Magnetic electromagnet blocks 106 are fixedly installed on the upper side wall of the side plate 101. A transmission rack 107 is fixedly connected to one end of the moving block 103. The upper end of the drive shaft 82 extends through the filter box 81 and is fixedly connected to a transmission gear 108 that meshes with the transmission rack 107.
[0027] An intermittent rotation switching mechanism 9 is installed on the processing pipe 11. The intermittent rotation switching mechanism 9 includes a power housing 91. The same force-bearing shaft 92 is rotatably connected to the inner wall of the upper and lower opposite sides of the power housing 91. A force-bearing impeller 93 is fixedly sleeved on the shaft wall of the force-bearing shaft 92 inside the power housing 91. A reduction gearbox 94 is also fixedly installed at the upper end of the power housing 91. The upper end of the force-bearing shaft 92 is fixedly connected to the input end of the reduction gearbox 94. A pressing rod 95 is fixedly connected to the upper output end of the reduction gearbox 94. A circular end cover 97 is fixedly connected to the upper end of the power housing 91 through a support frame 96. Two pressing trigger switches 98 are symmetrically fixedly connected to the inner wall of the circular end cover 97.
[0028] Two electrically controlled on / off valves 12 are symmetrically installed on both the return water pipe 3 and the treatment pipe 11.
[0029] The operating principle of this invention is described as follows: Through the unit body 1, water intake pipe 2, return water pipe 3, and water temperature monitoring self-triggering start mechanism 4, groundwater is fed into the unit body 1 for heat exchange via the cooperation of the water intake pipe 2 and return water pipe 3. The extracted water first passes through the water tank 41. The water temperature acts on the barium titanate temperature-sensitive variable resistance layer 44 through the heat-conducting cylinder 42 and the substrate 43. When the water temperature changes, the electron mobility inside the barium titanate temperature-sensitive variable resistance layer 44 changes with the temperature. The resistance of the barium titanate temperature-sensitive variable resistance layer 44 decreases as the temperature decreases. An electrical connection is also connected to the outside of the barium titanate temperature-sensitive variable resistance layer 44. Electrode 45, the power supply circuit is electrically connected to barium titanate temperature-sensitive variable resistance layer 44 through the electrode 45. As the resistance of barium titanate temperature-sensitive variable resistance layer 44 decreases, the current flowing through it increases, which in turn acts on electromagnetic relay 47. When the water temperature drops below 3℃, the current of the power supply circuit is just enough to activate electromagnetic relay 47, connecting the power supply circuits of automatic salt adding mechanism 5, brine storage mechanism 6, self-driven magnetic drive mechanism 7 and electrically controlled opening and closing valve 12 for subsequent processing. It can automatically monitor the water temperature and automatically start subsequent processing operations when the water temperature is too low, which has the advantages of timely processing and energy saving. The automatic salting mechanism 5, brine storage mechanism 6, and self-driven magnetic transmission mechanism 7 are configured to connect the electromagnetic block 710, which generates magnetism when energized. This, combined with the permanent magnet block 79, securely connects the first connecting seat 77 and the second connecting seat 78 together. When water flows through the water intake pipe 2, the drive impeller 73 rotates within the drive housing 71. This, in turn, drives the two connecting shafts 75 to rotate synchronously, in conjunction with the rotating shaft 72 and the bevel gear assembly 76. The connecting shafts 75 drive the first stirring rod 56 and the second stirring rod 64 to rotate, thereby driving multiple first stirring blades 57 and second stirring blades 65 to stir within the mixing tank 51 and the storage tank 61. The storage tank 61 stores brine, which is continuously replenished through the salt replenishment pipe 62 and the water replenishment pipe 63. The extraction pump 55, in conjunction with the extraction pipe 54, draws the brine from the storage tank 61 into the salting pipe 53 and then delivers it into the mixing tank 51 through multiple salting heads 52. This system can automatically mix salt into the water flow when it becomes too cold. Because some of the water is occupied by salt, the vapor pressure of the water decreases. Since the vapor pressure of ice remains constant, and the freezing point requires the vapor pressure of ice to be less than or equal to that of water, the addition of salt reduces the vapor pressure of water, making the original equal vapor pressure greater than that of ice. Because the vapor pressure of ice decreases rapidly, an even lower temperature is required for the vapor pressure of ice to equalize with that of water, thus lowering the freezing point of the water flow. This effectively prevents the low-temperature water flow after heat exchange from further cooling, which could lead to freezing blockage or pipe bursting. It also eliminates the need for frequent start-stop cycles, making the entire heat pump system more stable. Furthermore, when salt is added, the charges of sodium and chloride ions come into contact with the agglomerated particles and waste treatment agents, causing them to ionize and decompose, thereby improving the fluidity of the water flow and efficiently cleaning the inner walls of the pipes, ensuring smooth flow within the pipes. Through the salt filtration and recovery mechanism 8, the intermittent rotation switching mechanism 9, and the rotation adjustment mechanism 10, after salt treatment, the electrically controlled on / off valve 12 on the corresponding return water pipe 3 is closed and the electrically controlled on / off valve 12 on the corresponding treatment pipe 11 is opened, connecting the treatment pipe 11 for water flow. The saline water flows into the filter box 81, where the salt in the water is separated by the filtration action of the metal filter plate 85 and the polyamide nano-filter membrane 86. After heat exchange, the temperature of the saline water decreases, the solubility of the salt decreases, and the salt precipitates out as crystals. The metal filter plate 85 can effectively filter and intercept the precipitated salt crystals, and the polyamide nano-filter membrane 86 can prevent the passage of salt molecules, while water can pass through, further filtering the salt in the water. When the water flows through the treatment pipe 11, the driving impeller 93 drives the driving shaft 92 to rotate, which in turn drives the pressing rod 95 to rotate slowly in conjunction with the reduction gearbox 94. When the pressing rod 95 pushes against the pressing trigger switch 98, it connects the power supply circuit of the corresponding magnetic electromagnet 106. This causes the magnetic attraction of the electromagnetic block 106 to generate magnetism, which, in conjunction with the magnetic attraction of the permanent magnet block 105, drives the positioning seat 104 and the moving block 103 to move along the limiting slide bar 102. This, in turn, drives the transmission rack 107 to move. Through the meshing of the transmission rack 107 and the transmission gear 108, the transmission shaft 82, in conjunction with the reinforcing rod 83, drives the arc plate 84 to rotate. This causes the metal filter plate 85 and the polyamide nanofiltration membrane 86 on the other side to move to the water flow position for brine separation. In conjunction with the time delay relay, after the position of the metal filter plate 85 is switched, the flushing nozzle 88 is activated to flush the surface of the previously treated metal filter plate 85 and polyamide nanofiltration membrane 86, washing away the salt from the polyamide nanofiltration membrane 86. At the same time, the solenoid valve on the return salt pipe 89 is opened, allowing the flushing brine to flow back into the storage tank 61. This allows for the further separation of salt in the heat-exchanged water, effectively recovering and utilizing the salt, saving operating costs, and providing good economic efficiency. It also allows for automatic switching of the filtration mechanism and automatic cleaning, making it convenient to use.
[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A geothermal integrated heat pump unit, comprising a unit body (1) and a water intake pipe (2) and a water return pipe (3) installed on the unit body (1), characterized in that, The water intake pipe (2) is fixedly equipped with a water temperature monitoring self-triggering start mechanism (4) on the front end wall. The water intake pipe (2) is also equipped with an automatic salt addition mechanism (5). A brine storage mechanism (6) is also provided on one side of the automatic salt addition mechanism (5). The water intake pipe (2) is also equipped with a self-driven magnetic suction transmission mechanism (7) that is bidirectionally connected to the automatic salt addition mechanism (5) and the brine storage mechanism (6). The return water pipe (3) is also fixedly connected to the treatment pipe (11), and the treatment pipe (11) is equipped with a salt filtration and recovery mechanism (8) and an intermittent rotation switching mechanism (9). Two electrically controlled opening and closing valves (12) are symmetrically installed on the return water pipe (3) and the treatment pipe (11). The automatic salting mechanism (5) includes a mixing tank (51), with multiple salting heads (52) fixedly inserted at the upper end of the mixing tank (51). The upper ends of the multiple salting heads (52) are fixedly connected to the same salting pipe (53). The side wall of the salting pipe (53) is fixedly connected to an extraction pipe (54). One end of the extraction pipe (54) is connected to the brine storage mechanism (6). An extraction pump (55) is also installed on the extraction pipe (54). The extraction pump (55) is fixedly installed on the outside of the mixing tank (51). A first stirring rod (56) is rotatably connected to the bottom of the mixing tank (51). Multiple first stirring blades (57) are symmetrically fixedly connected to the rod wall of the first stirring rod (56). The brine storage mechanism (6) includes a storage tank (61), the upper end of which is fixedly connected to a salt replenishment pipe (62) and a water replenishment pipe (63), and the bottom of the storage tank (61) is also rotatably connected to a second stirring rod (64), and the second stirring rod (64) has multiple second stirring blades (65) symmetrically fixedly connected to its wall. The self-driven magnetic drive mechanism (7) includes a drive housing (71). A rotating shaft (72) is rotatably connected to one side wall of the drive housing (71). A drive impeller (73) is fixedly connected to the shaft wall of the rotating shaft (72) inside the drive housing (71). Both ends of the rotating shaft (72) extend through the drive housing (71). A U-shaped positioning plate (74) is fixedly connected to the lower end of the mixing box (51) and the storage box (61). A through hole is opened on the horizontal part of the U-shaped positioning plate (74), and a shaft passes through the corresponding through hole. The rotating shaft (72) is rotatably connected to the connecting shaft (75). One end of the rotating shaft (72) is connected to the lower end of the connecting shaft (75) via a bevel gear assembly (76). The lower ends of the first stirring rod (56) and the second stirring rod (64) are both fixedly connected to a first connecting seat (77). The upper end of the connecting shaft (75) is fixedly connected to a second connecting seat (78). A connecting permanent magnet block (79) is fixedly embedded on the lower side of the first connecting seat (77), and a connecting electromagnetic block (710) is fixedly embedded on the upper side of the second connecting seat (78). The salt filtration and recovery mechanism (8) includes a cylindrical filter box (81). The inner walls of the upper and lower opposite sides of the filter box (81) are rotatably connected to the same drive shaft (82). The shaft wall of the drive shaft (82) is connected to the same arc-shaped plate (84) through multiple reinforcing rods (83). Two metal filter plates (85) are fixedly nested on the side wall of the arc-shaped plate (84). A polyamide nanofiltration membrane (86) is fixedly applied to the outer side of the metal filter plate (85). Three sealing contact points that are staggered with the metal filter plates (85) are also fixedly connected to the outer side of the arc-shaped plate (84). The sealing contact plate (87) is sealed and abuts against the inner side of the filter box (81) at one end. The upper side wall of the filter box (81) is also fixedly nested with a plurality of flushing nozzles (88) corresponding to the positions of the metal filter plate (85). The bottom of the filter box (81) is symmetrically connected to two salt return pipes (89). The lower end of the salt return pipe (89) is fixedly connected to the upper end of the storage box (61). The salt return pipe (89) is also equipped with a solenoid valve. The upper end of the filter box (81) is fixedly equipped with a rotation adjustment mechanism (10) for driving the transmission shaft (82) to rotate.
2. The geothermal integrated heat pump unit according to claim 1, characterized in that, The water temperature monitoring self-triggering start mechanism (4) includes a water passage cylinder (41), a heat conduction cylinder (42) is fixedly nested inside the water passage cylinder (41), a substrate (43) is bonded to the outside of the heat conduction cylinder (42), a barium titanate temperature-sensitive variable resistance layer (44) is fixedly bonded to the outside of the substrate (43), an electrode (45) is attached to the outside of the barium titanate temperature-sensitive variable resistance layer (44), and a protective shell (46) is fixedly connected to the outside of the water passage cylinder (41) and covers the heat conduction cylinder (42). An electromagnetic relay (47) is fixedly installed on the outside of the protective shell (46).
3. The geothermal integrated heat pump unit according to claim 1, characterized in that, The intermittent rotation switching mechanism (9) includes a power housing (91). The inner walls of the upper and lower opposite sides of the power housing (91) are rotatably connected to the same force-bearing shaft (92). The force-bearing shaft (92) is fixedly sleeved on the shaft wall inside the power housing (91) with a force-bearing impeller (93). A reduction gearbox (94) is also fixedly installed at the upper end of the power housing (91). The upper end of the force-bearing shaft (92) is fixedly connected to the input end of the reduction gearbox (94). A pressing rod (95) is fixedly connected to the upper output end of the reduction gearbox (94). A circular end cap (97) is fixedly connected to the upper end of the power housing (91) through a support frame (96). Two pressing trigger switches (98) are symmetrically fixedly connected to the inner wall of the circular end cap (97).
4. The geothermal integrated heat pump unit according to claim 1, characterized in that, The rotary adjustment mechanism (10) includes two side plates (101) symmetrically fixedly connected to the upper end of the filter box (81). Two limiting slide rods (102) are symmetrically fixedly connected between the two side plates (101). The same moving block (103) is slidably sleeved on the two limiting slide rods (102). A positioning seat (104) is fixedly installed on the upper side of the moving block (103). Magnetic permanent magnet blocks (105) are fixedly embedded on both the front and rear sides of the positioning seat (104). Magnetic electromagnetic blocks (106) are fixedly installed on the upper side wall of the side plate (101). A transmission rack (107) is fixedly connected to one end of the moving block (103). The upper end of the transmission shaft (82) extends through the filter box (81) and is fixedly connected to a transmission gear (108) that meshes with the transmission rack (107).