Shallow low temperature heating operation equipment and system

Abstract

The present invention discloses a shallow low-temperature heating operation equipment and its system, comprising an inlet pipe, a lower connecting pipe and an outlet pipe which are connected in sequence, and the inlet pipe is connected with a blower and a water pump, and the lower connecting pipe and the upper connecting pipe are connected with a branch pipe, and the upper connecting pipe is connected with a drain pipe aligned with the branch pipe, and a first baffle and a second baffle are arranged in the upper connecting pipe, and the first baffle is connected with a lower pressure rod extending toward the valve, and the lower pressure rod is connected with an elastic rod extending into between adjacent heat exchange fins, and the elastic rod is connected with a plurality of flexible brushes. In use, the present invention blocks other pipes when cleaning a certain pipe through the coordinated arrangement of the first baffle, the second baffle, the lower pressure rod and the valve, thereby improving the cleaning strength of the cleaning water on the dirt, and also cleans the dust attached to the heat exchange fins through the flexible brushes, thereby avoiding the problem of affecting the heat exchange efficiency due to too much dust attached to the heat exchange fins.

Description

Technical Field

[0001] The present invention relates to the technical field of geothermal heating equipment, and in particular to shallow low-temperature heating operation equipment and a system thereof. Background Art

[0002] The shallow surface is a huge solar collector, collecting 47% of solar energy, which is equivalent to more than 500 times the energy used by humans each year. It is not limited by geography and resources, and is truly large, wide-ranging and ubiquitous. This is a nearly unlimited renewable energy stored in the shallow surface. Compared with the ambient air on the ground, the soil temperature 5m below the ground is basically stable throughout the year and slightly lower than the annual average temperature, which can provide relatively low condensation temperature and high evaporation temperature in summer and winter respectively. So from the principle of thermodynamics, soil is a better cold and heat source for heat pump systems than ambient air.

[0003] In the prior art, there is a "zero energy consumption" shallow soil-air heat exchange system with a publication number of "CN211695121U", which includes a soil-air heat exchange system, an air source heat pump system and a photovoltaic power generation system. The air in the buried heat exchange pipe exchanges heat with the soil under the action of a blower. The air after heat exchange is used as a low-temperature heat source in a closed machine room to provide heat energy for the air source heat pump. The air source heat pump is driven by a small amount of electricity and then supplies heat to the user end. The electricity required for the entire system is provided by the photovoltaic power generation system. By combining the air source heat pump, shallow geothermal heat exchange pipe and photovoltaic power generation technology, shallow geothermal energy and solar energy are used to achieve indoor heating of the building, which can effectively save some fossil fuels.

[0004] However, the prior art still has major defects, such as: the prior art has the problem of small heat exchange area and short heat exchange time between air, buried heat exchange tubes and land, which makes it impossible for the air to fully exchange heat with the buried heat exchange tubes, resulting in too little heat or cold brought out by the air from the buried heat exchange tubes, thereby causing a decrease in the heating or cooling effect. In addition, dust and water droplets will accumulate inside the buried heat exchange tubes after long-term use. The dust and water droplets mix to form dirt that adheres to the inner wall of the buried heat exchange tubes, reducing the heat exchange efficiency between the air and the buried heat exchange tubes. In severe cases, the buried heat exchange tubes may even be blocked, causing the device to fail to operate normally. Summary of the invention

[0005] The object of the present invention is to provide a shallow low-temperature heating operation device and a system thereof to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A shallow low-temperature heating operation device, comprising an inlet pipe and an outlet pipe extending downward into the soil, wherein the lower ends of the inlet pipe and the outlet pipe are connected via a lower connecting pipe, wherein a blower and a water pump are connected to the inlet pipe, wherein a plurality of branch pipes connected to the lower connecting pipe are arranged between the inlet pipe and the outlet pipe, and wherein the plurality of branch pipes extend upward out of the soil and are connected to the same upper connecting pipe;

[0008] The upper end of the upper connecting pipe is connected to a plurality of drainage pipes aligned one by one with the branch pipes, and a first baffle is slidably arranged in the upper connecting pipe to block the branch pipes or the drainage pipes, an end of the first baffle close to the outlet pipe is fixedly connected to a second baffle, and the second baffle slides out of the upper connecting pipe, an inner wall of the upper connecting pipe away from the second baffle is connected to a slot for slidingly inserting the second baffle, and the second baffle extends into the slot and blocks the upper connecting pipe, an end of the second baffle extending out of the upper connecting pipe is rotatably connected to a threaded rod, and a nut is fixedly arranged on the outer side of the upper connecting pipe, and the threaded rod passes through the nut;

[0009] A valve is provided at the lower end of the branch pipe, and the first baffle is fixedly connected to a downward pressure rod extending downward toward the valve, and the downward pressure rod presses the switch on the valve downward to disconnect the valve, a plurality of heat exchange fins are fixedly connected to the inner wall of the branch pipe, and the downward pressure rod is fixedly connected to an elastic rod extending between adjacent heat exchange fins, and a plurality of flexible brushes are fixedly connected to the rod body of the elastic rod extending between adjacent heat exchange fins.

[0010] Preferably, the upper connecting pipe is provided with a flow cavity connected with the branch pipe and the drain pipe, and the flow cavity is connected with a second baffle slide groove for sliding the second baffle, and the second baffle slide groove is connected with the slot.

[0011] Preferably, the upper connecting pipe is fixedly connected with an elastic ring, and the second baffle slides through the elastic ring.

[0012] Preferably, the nut and the outer wall of the upper connecting pipe are fixedly connected via a fixing bracket.

[0013] Preferably, one end of the threaded rod away from the second baffle is fixedly connected to a handheld turntable.

[0014] Preferably, the end of the drain pipe away from the upper connecting pipe is connected to a water collecting box, and the water collecting box and the drain pipe are connected through a filter box. The filter box slides against the inner wall of the water collecting box, and the filter box is fixedly connected to a hook hanging on the outer wall of the water collecting box.

[0015] Preferably, a spiral fin is fixedly connected to the outer wall of the branch pipe, and a drill bit is fixedly connected to the lower end of the branch pipe, and the lower end of the branch pipe extends into the lower connecting pipe and is connected to the lower connecting pipe. An internal thread groove with a movable baffle is opened on the upper part of the lower connecting pipe, and an external thread layer passing through the internal thread groove is arranged on the outer side of the lower part of the branch pipe.

[0016] A shallow low-temperature heating system, which uses the above-mentioned shallow low-temperature heating operating equipment.

[0017] Preferably, it includes a solar power generation device, a heat exchange room and a heat pump room, wherein a first heat exchanger is arranged in the heat exchange room, and the inlet pipe and the outlet pipe are located in the heat exchange room, an expansion valve, a second heat exchanger and a compressor are arranged in the heat pump room, and the first heat exchanger, the expansion valve, the second heat exchanger and the compressor constitute a forced heat exchange circulation system, a useful heat end is arranged outside the heat pump room, and a natural heat exchange circulation system is constituted by a circulating water pump between the useful heat end and the second heat exchanger.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The shallow low-temperature heating operation equipment and system of the present invention, through the coordinated arrangement of the first baffle, the second baffle, the lower pressure rod and the valve, blocks other pipes when cleaning a certain pipe, greatly reduces the amount of water used for cleaning, and improves the flushing intensity of the cleaning water on the pipe to be cleaned, thereby improving the cleaning intensity of the cleaning water on the dirt, and also through the coordinated arrangement of the lower pressure rod, the elastic rod and the flexible brush, cleans the dust attached to the heat exchange fins, avoiding the problem of the heat exchange efficiency being affected by too much dust attached to the heat exchange fins. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the framework of the overall device of the present invention;

[0021] Figure 2 It is a schematic diagram of the assembly of the pipelines such as the lower connecting pipe, the branch pipe and the upper connecting pipe of the present invention;

[0022] Figure 3 for Figure 2 A magnified schematic diagram of the internal structure of the middle branch pipe;

[0023] Figure 4 for Figure 2 Schematic diagram of the first baffle blocking the drain pipe;

[0024] Figure 5 It is a three-dimensional exploded schematic diagram of the second baffle and the upper connecting pipe of the present invention;

[0025] Figure 6 It is a schematic diagram of the connection structure between the drainage pipe and the water collecting tank of the present invention;

[0026] Figure 7 It is a schematic diagram of the branch pipe spirally extending into the lower connecting pipe of the present invention;

[0027] Figure 8 This is a schematic diagram of cleaning the left branch pipe in the present invention;

[0028] Fig. 9 This is a schematic diagram of cleaning the middle branch pipe in the present invention;

[0029] Fig.10 It is a schematic diagram of cleaning the lower connecting pipe in the present invention.

[0030] In the figure: 1 inlet pipe, 2 outlet pipe, 3 lower connecting pipe, 4 blower, 5 water pump, 6 branch pipe, 7 upper connecting pipe, 71 slot, 72 flow cavity, 73 second baffle slide, 8 drain pipe, 9 first baffle, 10 second baffle, 11 threaded rod, 12 nut, 13 lower pressure rod, 14 valve, 15 heat exchange fin, 16 elastic rod, 17 flexible brush, 18 connecting rod, 19 elastic collar, 20 fixed bracket, 21 handheld turntable, 22 water collecting box, 23 filter box, 24 hook, 25 spiral fin, 26 external thread layer, 27 drill bit, 28 heat exchange room, 29 heat pump room, 30 first heat exchanger, 31 expansion valve, 32 second heat exchanger, 33 compressor, 34 hot end, 35 circulating water pump, 36 solar power generation device. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-10 , the present invention provides a technical solution:

[0033] Embodiment 1:

[0034] A shallow low-temperature heating operation device comprises an inlet pipe 1 and an outlet pipe 2 extending downward into the soil, the inlet pipe 1 and the outlet pipe 2 are arranged at intervals on the left and right, and the lower ends of the inlet pipe 1 and the outlet pipe 2 are connected through a lower connecting pipe 3, and a blower 4 and a water pump 5 are connected to the inlet pipe 1. In normal use, the blower 4 blows air into the inlet pipe 1, and the air passes through the inlet pipe 1 and the lower connecting pipe 3 and is ejected from the upper end of the outlet pipe 2. During the flow process, the air exchanges heat with the soil through the inlet pipe 1, the lower connecting pipe 3, and the pipe wall of the outlet pipe 2, so that the air ejected from the upper end of the outlet pipe 2 and the air entering from the upper end of the inlet pipe 1 exist. A certain temperature difference, such as in winter, the heat contained in the outside air is lower than the heat contained in the soil. The air absorbs the heat contained in the soil during the flow in the inlet pipe 1, the lower connecting pipe 3, and the outlet pipe 2, so that the heat of the air flowing out of the outlet pipe 2 increases, which is convenient for the subsequent use of the air flowing out of the outlet pipe 2 for heating. For example, in summer, the heat contained in the outside air is higher than the heat contained in the soil. The air releases heat to the soil during the flow in the inlet pipe 1, the lower connecting pipe 3, and the outlet pipe 2, so that the heat of the air flowing out of the outlet pipe 2 decreases, which is convenient for the subsequent use of the air flowing out of the outlet pipe 2 for cooling;

[0035] Three branch pipes 6 connected to the lower connecting pipe 3 are arranged between the inlet pipe 1 and the outlet pipe 2. The three branch pipes 6 are arranged in sequence from left to right, and the three branch pipes 6 extend upward from the soil and are fixedly connected to the bottom of the same upper connecting pipe 7. The upper connecting pipe 7 is provided with a left-right oriented flow cavity 72, and the three branch pipes 6 are all connected to the flow cavity 72. After the air enters the lower connecting pipe 3 from the inlet pipe 1, it continues to flow, and part of the air enters the branch pipe 6. The air exchanges heat with the soil through the wall of the branch pipe 6, which increases the heat exchange time and heat exchange area between the air and the soil, improves the heat exchange effect between the air and the soil, and then increases the amount of heat or cold obtained by the air from the soil, and improves the effect of subsequent heating or cooling using the air. After heat exchange through the branch pipe 6 and the upper connecting pipe 7, the air returns to the lower connecting pipe 3 again and is ejected from the upper end of the outlet pipe 2;

[0036] The upper end of the upper connecting pipe 7 is fixedly connected with three drainage pipes 8 arranged in sequence from left to right, and the three drainage pipes 8 are aligned one by one with the branch pipes 6, and the lower ends of the three drainage pipes 8 are connected with the upper end of the flow chamber 72, and a first baffle 9 is provided in the upper connecting pipe 7 to block the branch pipes 6 or the drainage pipes 8 by sliding up and down, and a connecting rod 18 is fixedly connected to the end of the first baffle 9 close to the outlet pipe 2, that is, the right end of the first baffle 9 is fixedly connected with the connecting rod 18 extending to the right, and the end of the connecting rod 18 away from the first baffle 9 is fixedly connected with the second baffle 10, and the second baffle 10 is arranged in an up-down direction, and the flow chamber 72 is connected with The second baffle plate slot 73 extends upward, and the second baffle plate slot 73 opens at the upper end of the upper connecting tube 7. The second baffle plate 10 is slidably arranged in the second baffle plate slot 73 and slides upward to extend out of the upper connecting tube 7. The inner bottom wall of the flow chamber 72 is connected with a slot 71. When the lower end of the second baffle plate 10 extends into the slot 71, the second baffle plate 10 blocks the flow chamber 72, so that the fluid on the left side of the second baffle plate 10 cannot slide to the right. When the lower end of the second baffle plate 10 leaves the slot 72, the second baffle plate 10 cannot continue to block the flow chamber 72, so that the fluid on the left side of the second baffle plate 10 can flow to the right through the second baffle plate 10.

[0037] The upper end of the second baffle 10 extending out of the upper connecting pipe 7 is rotatably connected to a threaded rod 11, and a nut 12 is fixedly arranged on the outer side of the upper connecting pipe 7, the nut 12 and the outer wall of the upper connecting pipe 7 are fixedly connected by a fixing bracket 20, and the threaded rod 11 passes through the nut 12, and the end of the threaded rod 11 away from the second baffle 10 is fixedly connected to a hand-held turntable 21, and the hand-held turntable 21 is arranged to facilitate the rotation of the threaded rod 11. When the second baffle 10 needs to be adjusted up and down, the hand-held turntable 21 is rotated, and the hand-held turntable 21 drives the threaded rod 11 to rotate together, while the nut 12 is fixed, so that The threaded rod 11 moves upward or downward while rotating, and then the threaded rod 11 drives the second baffle 10 to move upward or downward together. The matching arrangement of the nut 12 and the threaded rod 11 has a thread self-locking effect, which is convenient for the automatic positioning of the threaded rod 11 and the second baffle 10 after movement. The outer wall of the upper connecting pipe 7 is fixedly connected with an elastic collar 19, and the second baffle 10 slides through the elastic collar 19. The setting of the elastic collar 19 has a sealing effect of isolating the fluid from leaking out, and prevents the fluid in the flow cavity 72 from flowing out through the gap between the second baffle 10 and the second baffle chute 73;

[0038] When the pipeline is in normal heat exchange use, the threaded rod 11 is rotated to make the second baffle 10 slide upward and leave the slot 71, and the second baffle 10 drives the first baffle 9 to slide upward, so that the three first baffles 9 all block the corresponding drain pipe 8, and the air blown in by the blower 4 flows in the inlet pipe 1, the lower connecting pipe 3, the branch pipe 6 and the outlet pipe 2 to exchange heat. When a certain pipeline is blocked due to accumulated dirt, the water pump 5 is switched to work, so that the water pump 5 sends cleaning water into the pipeline, and the dirt in the pipeline is flushed and removed by the cleaning water, so as to clean the pipeline. By using the blower 4 to blow air for heat exchange during the heat exchange process and using the water pump 5 to send cleaning water to clean dirt during the cleaning process, it is very progressive compared with the simple use of air heat exchange, which is easy to accumulate dirt, and the simple use of water heat exchange, which increases the power load;

[0039] When dirt accumulates in the leftmost branch pipe 6, the outlet pipe 2 is blocked, and the three threaded rods 11 are rotated so that the three second baffles 10 all slide downward and extend into the slot 71, and the sliding displacement of the leftmost second baffle 10 is smaller than the sliding displacement of the other two second baffles 10, so that the first baffle 9 connected to the leftmost second baffle 10 is located in the middle of the flow chamber 72, that is, the first baffle 9 connected to the leftmost second baffle 10 cannot block the corresponding branch pipe 6 and drain pipe 8, and the first baffle 9 connected to the other two second baffles 10 slides down to block the corresponding branch pipe 6, and the cleaning water enters the leftmost branch pipe 6 from the lower connecting pipe 3, and is discharged through the branch pipe 6, the upper connecting pipe 7 and the leftmost drain pipe 8, and the scouring force of the water flow is used to remove the dirt in the leftmost branch pipe 6, while the other two branch pipes 6 and the outlet pipe 2 are blocked, thereby improving the scouring force of the cleaning water on the leftmost branch pipe 6, thereby improving the cleaning effect on the dirt in the leftmost branch pipe 6;

[0040] Similarly, when dirt accumulates in the middle branch pipe 6, the outlet pipe 2 is blocked, and the three threaded rods 11 are rotated so that the three second baffles 10 all slide downward and extend into the slot 71, and the sliding displacement of the middle second baffle 10 is smaller than the sliding displacement of the other two second baffles 10, so that the first baffle 9 connected to the middle second baffle 10 is located in the middle of the flow chamber 72, that is, the first baffle 9 connected to the middle second baffle 10 cannot block the corresponding branch pipe 6 and drain pipe 8, while the first baffle 9 connected to the other two second baffles 10 slides down to block the corresponding branch pipe 6, and the same When the dirt accumulated in the rightmost branch pipe 6 is handled, the outlet pipe 2 is blocked, and the three threaded rods 11 are rotated so that the three second baffles 10 all slide downward and extend into the slot 71, and the sliding displacement of the rightmost second baffle 10 is smaller than the sliding displacement of the other two second baffles 10, so that the first baffle 9 connected to the rightmost second baffle 10 is located in the middle of the flow cavity 72, that is, the first baffle 9 connected to the rightmost second baffle 10 cannot block the corresponding branch pipe 6 and drain pipe 8, while the first baffle 9 connected to the other two second baffles 10 slides down to block the corresponding branch pipe 6;

[0041] When dirt accumulates in the lower connecting pipe 3, the three threaded rods 11 are rotated so that the three second baffles 10 all slide downward and extend into the slot 71, and the first baffles 9 connected to the three second baffles 10 all slide down to block the corresponding branch pipes 6, so that the three branch pipes 6 are all blocked, and the cleaning water flows through the lower connecting pipe 3 and is discharged from the outlet pipe 2. The scouring force of the water flow is used to remove the dirt in the lower connecting pipe 3. Through the coordinated arrangement of the first baffle 9 and the second baffle 10, targeted individual cleaning of each pipeline is achieved. Compared with cleaning the entire pipeline at the same time, targeted individual cleaning greatly reduces the amount of cleaning water and reduces power consumption, and by blocking other pipelines, the scouring intensity of the cleaning water on the pipeline to be cleaned is increased, thereby increasing the cleaning intensity of the cleaning water on the dirt;

[0042] A valve 14 is provided at the lower end of the branch pipe 6, that is, the valve 14 is close to the lower connecting pipe 3, and a switch for controlling the opening and closing of the valve 14 is provided above the valve 14, and the first baffle 9 is fixedly connected to a lower pressure rod 13 extending downward toward the valve 14. When the lower pressure rod 13 is not in contact with the switch, the valve 14 is opened to allow fluid to pass through. When the lower pressure rod 13 slides downward to the switch, the lower pressure rod 13 squeezes the switch to close the valve 14, so that the fluid in the lower connecting pipe 3 cannot enter the branch pipe 6. The valve 14 can be an electromagnetic valve that is closed when powered on and opened when not powered on. The switch is a touch-pressure switch. When the lower pressure rod 13 is not squeezed, the valve 14 is closed. When the switch is on and off, the switch is disconnected so that the valve 14 is not energized, and the valve 14 remains in the open state. When the lower pressure rod 13 squeezes the switch, the switch is closed so that the valve 14 is energized, and the valve 14 switches to the closed state. The first baffle plate 9 slides downward to drive the lower pressure rod 13 to slide downward together, until the first baffle plate 9 slides downward to block the upper end of the branch pipe 6, the lower pressure rod 13 slides downward to the valve 14 and squeezes the switch, so that the valve 14 is closed, so that the cleaning water in the lower connecting pipe 3 cannot flow upward into the branch pipe 6, further reducing the flow space of the cleaning water, thereby further reducing the amount of cleaning water;

[0043] A plurality of heat exchange fins 15 are fixedly connected to the inner wall of the branch pipe 6 from top to bottom in sequence. The setting of the heat exchange fins 15 increases the heat exchange area between the air and the branch pipe 6, and increases the heat exchange amount of the air passing through the branch pipe 6. The lower pressure rod 13 is fixedly connected with an elastic rod 16 extending into adjacent heat exchange fins 15, and the rod body of the elastic rod 16 extending into adjacent heat exchange fins 15 is fixedly connected with a plurality of flexible brushes 17. During the flow of the fluid, the elastic rod 16 and the flexible brush 17 swing up and down under the push of the fluid. The flexible brush 17 swings up and down and cleans the heat exchange fins 15 to remove dust attached to the heat exchange fins 15, thereby avoiding the problem of the heat exchange efficiency of the heat exchange fins 15 being affected by excessive dust attached to the heat exchange fins 15. The lower pressure rod 13 drives the elastic rod 16 to move up and down together during the up and down sliding process. The elastic rod 16 drives the flexible brush 17 to clean different heat exchange fins 15 during the up and down movement, thereby further improving the cleaning effect of the heat exchange fins 15.

[0044] Embodiment 2:

[0045] Embodiment 2 adds a wastewater recovery device on the basis of embodiment 1, that is: the end of the drain pipe 8 away from the upper connecting pipe 7 is fixedly connected to the water collecting box 22, the inner wall of the water collecting box 22 is slidably connected to the filter box 23 with an open end, and the opening of the filter box 23 is connected to the drain pipe 8, and the filter box 23 is provided with a plurality of filter holes connected to the water collecting box 22, the cleaned wastewater enters the filter box 23 through the drain pipe 8, the cleaning water is blocked by the filter holes of the filter box 23 to filter out dirt, and the filtered cleaning water passes through the filter holes After entering the water collecting tank 22, the filtered cleaning water in the water collecting tank 22 can flow back to the inlet pipe 1 again under the action of the water pump 5, so as to realize the recycling of cleaning water and reduce energy consumption. The filter box 23 is fixedly connected with a hook 24 hung on the outer wall of the water collecting tank 22. The filter box 23 stays stably in the water collecting tank 22 through the hook 24. When too much dirt accumulates in the filter box 23, the hook 24 is manually pulled to remove the filter box 23 from the water collecting tank 22 and clean the dirt accumulated in the filter box 23.

[0046] Embodiment three:

[0047] Embodiment 3 optimizes the connection structure of the branch pipe 6 and the lower connecting pipe 3 on the basis of embodiment 1, namely: the outer wall of the branch pipe 6 is fixedly connected with a spiral fin 25, and the branch pipe 6 spirally extends into the soil. The setting of the spiral fin 25 improves the stability of the branch pipe 6 inserted into the soil, and the setting of the spiral fin 25 increases the heat exchange area between the branch pipe 6 and the soil, thereby improving the heat exchange effect between the soil and the air, and the lower end of the branch pipe 6 is fixedly connected with a drill bit 27, and the setting of the drill bit 27 facilitates the branch pipe 6 to be inserted downward into the soil, and the lower end of the branch pipe 6 extends into the lower connecting pipe 3 and is connected with the lower connecting pipe 3, the upper part of the lower connecting pipe 3 is provided with an internal thread groove with a movable baffle movably arranged inside, and the outer side of the lower part of the branch pipe 6 is provided with an external thread layer 26 passing through the internal thread groove, The lower connecting pipe 3 is first pre-buried in the soil, and the movable baffle blocks the internal thread groove to prevent soil from entering the lower connecting pipe 3 and causing blockage of the lower connecting pipe 3. The branch pipe 6 is then spirally inserted downward. The branch pipe 6 moves downward and presses the movable baffle into the lower connecting pipe 3. The external thread layer 26 on the outside of the branch pipe 6 extends into the internal thread groove of the lower connecting pipe 3 to achieve sealing of the internal thread groove. The branch pipe 6 extends into an opening at one end of the lower connecting pipe 3, so that the branch pipe 6 and the lower connecting pipe 3 are connected. The movable baffle can be a cylindrical plate with threads on the outside, and a groove is provided at the upper end of the cylindrical plate. A protrusion that fits the groove is provided at the lower end of the drill bit 27, so that the drill bit 27 drives the movable baffle to move downward in the process of spiral movement downward, thereby causing the movable baffle to leave the internal thread groove.

[0048] A shallow low-temperature heating system, the shallow low-temperature heating system includes a solar power generation device 36, a heat exchange room 28 and a heat pump room 29, a first heat exchanger 30 is arranged in the heat exchange room 28, and an inlet pipe 1 and an outlet pipe 2 are located in the heat exchange room 28, an expansion valve 31, a second heat exchanger 32 and a compressor 33 are arranged in the heat pump room 29, and the first heat exchanger 30, the expansion valve 31, the second heat exchanger 32 and the compressor 33 form a forced heat exchange circulation system, the air ejected from the outlet pipe 2 exchanges heat with the first heat exchanger 30, so that the first heat exchanger 30 has low-grade heat, and then through the coordinated setting of the expansion valve 31 and the compressor 33, the outside air is utilized to heat the first heat exchanger 30. Driven by energy, the low-grade heat on the first heat exchanger 30 is converted into high-grade heat on the second heat exchanger 32. A useful heat end 34 is arranged outside the heat pump room 29, and a natural heat exchange circulation system is formed between the useful heat end 34 and the second heat exchanger 32 through a circulating water pump 35. The high-grade heat on the second heat exchanger 32 uses the water sprayed by the circulating water pump 35 as a heat exchange carrier to transfer the high-grade heat on the second heat exchanger 32 to the useful heat end 34, thereby realizing heating for the useful heat end 34. The solar power generation device 36 converts solar energy into electrical energy, and supplies power to electrical equipment such as the blower 4, the water pump 5, the compressor 33 and the circulating water pump 35, thereby reducing energy consumption.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shallow low-temperature heating operation device, comprising an inlet pipe (1) and an outlet pipe (2) extending downward into the soil, wherein the lower ends of the inlet pipe (1) and the outlet pipe (2) are connected via a lower connecting pipe (3), characterized in that: The inlet pipe (1) is connected to a blower (4) and a water pump (5); a plurality of branch pipes (6) connected to the lower connecting pipe (3) are arranged between the inlet pipe (1) and the outlet pipe (2); and the plurality of branch pipes (6) extend upward from the soil and are connected to the same upper connecting pipe (7); The upper end of the upper connecting pipe (7) is connected to a plurality of drainage pipes (8) aligned one by one with the branch pipes (6), and a first baffle (9) is slidably arranged in the upper connecting pipe (7) to block the branch pipes (6) or the drainage pipes (8), the first baffle (9) is fixedly connected to the end close to the outlet pipe (2) with a second baffle (10), and the second baffle (10) slides out of the upper connecting pipe (7), the inner wall of the upper connecting pipe (7) away from the second baffle (10) is connected to a slot (71) for slidingly inserting the second baffle (10), and the second baffle (10) extends into the slot (71) and blocks the upper connecting pipe (7), the end of the second baffle (10) extending out of the upper connecting pipe (7) is rotatably connected to a threaded rod (11), and a nut (12) is fixedly arranged on the outer side of the upper connecting pipe (7), and the threaded rod (11) passes through the nut (12); A valve (14) is provided at the lower end of the branch pipe (6), and the first baffle (9) is fixedly connected to a downward pressure rod (13) extending downward toward the valve (14), and the downward pressure rod (13) presses the switch on the valve (14) downward to disconnect the valve (14), and the inner wall of the branch pipe (6) is fixedly connected to a plurality of heat exchange fins (15), and the downward pressure rod (13) is fixedly connected to an elastic rod (16) extending between adjacent heat exchange fins (15), and the rod body of the elastic rod (16) extending between adjacent heat exchange fins (15) is fixedly connected to a plurality of flexible brushes (17).

2. The shallow low-temperature heating operation equipment according to claim 1 is characterized in that: The upper connecting pipe (7) is provided with a flow chamber (72) connected to the branch pipe (6) and the drainage pipe (8), and the flow chamber (72) is connected to a second baffle plate slide groove (73) for the second baffle plate (10) to slide, and the second baffle plate slide groove (73) is connected to the slot (71).

3. The shallow low-temperature heating operation equipment according to claim 1 is characterized in that: The upper connecting pipe (7) is fixedly connected to an elastic collar (19), and the second baffle (10) slides through the elastic collar (19).

4. The shallow low-temperature heating operation equipment according to claim 1 is characterized in that: The nut (12) and the outer wall of the upper connecting pipe (7) are fixedly connected via a fixing bracket (20).

5. The shallow low-temperature heating operation equipment according to claim 1 is characterized in that: One end of the threaded rod (11) away from the second baffle (10) is fixedly connected to a handheld turntable (21).

6. The shallow low-temperature heating operation equipment according to claim 1 is characterized in that: One end of the drainage pipe (8) away from the upper connecting pipe (7) is connected to a water collecting box (22), and the water collecting box (22) and the drainage pipe (8) are connected via a filter box (23), the filter box (23) slides against the inner wall of the water collecting box (22), and the filter box (23) is fixedly connected to a hook (24) hung on the outer wall of the water collecting box (22).

7. The shallow low-temperature heating operation equipment according to claim 1 is characterized in that: The outer wall of the branch pipe (6) is fixedly connected with a spiral fin (25), and the lower end of the branch pipe (6) is fixedly connected with a drill bit (27), and the lower end of the branch pipe (6) extends into the lower connecting pipe (3) and is connected with the lower connecting pipe (3), and the upper part of the lower connecting pipe (3) is provided with an internal thread groove in which a movable baffle is movably arranged, and the outer side of the lower part of the branch pipe (6) is provided with an external thread layer (26) passing through the internal thread groove.

8. A shallow low-temperature heating system, characterized in that: The shallow low-temperature heating system uses the shallow low-temperature heating operating equipment described in any one of claims 1-7 above.

9. The shallow low-temperature heating system according to claim 8, characterized in that: The invention comprises a solar power generation device (36), a heat exchange room (28) and a heat pump room (29), wherein the heat exchange room (28) is provided with a first heat exchanger (30), and an inlet pipe (1) and an outlet pipe (2) are located in the heat exchange room (28), and the heat pump room (29) is provided with an expansion valve (31), a second heat exchanger (32) and a compressor (33), and the first heat exchanger (30), the expansion valve (31), the second heat exchanger (32) and the compressor (33) form a forced heat exchange circulation system, and a useful heat end (34) is provided outside the heat pump room (29), and a natural heat exchange circulation system is formed between the useful heat end (34) and the second heat exchanger (32) through a circulating water pump (35).

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