CN117346210A - Shallow geothermal energy heating system - Google Patents

Abstract

The invention relates to the technical field of heating and heat supply, in particular to a shallow geothermal energy heating and heat supply system. The shallow geothermal energy heating system comprises a heat preservation shell, a controller, a heat pump unit and the like; the lower part of the heat preservation shell is fixedly connected with a controller, and the upper part of the heat preservation shell is fixedly connected with a heat pump unit. The output shafts of the two servo motors rotate for half a circle to drive the heat insulation plate to overturn, then the hot water which is heated and reaches the standard temperature above the heat insulation plate can flow to the lower part of the heat insulation plate and store the hot water, so that the hot water can circulate in the heat insulation tank, and the purpose of rapidly heating the water and storing the hot water can be realized.

Description

Shallow geothermal energy heating system

Technical Field

The invention relates to the technical field of geothermal energy heating, in particular to a shallow geothermal energy heating system.

Background

Shallow geothermal energy is within a certain depth range below the earth surface (generally within a depth range of 200m below the earth), the temperature is lower than 25 ℃, and the technical condition foundation for gradually developing abundant heat energy resources in the earth is provided under the current technical and economic conditions. The basic operation principle of the heating system is that the low-temperature heating medium is heated in a heat source, and after absorbing heat, the low-temperature heating medium becomes high-temperature heating medium (high-temperature water or steam) and then emits heat through a heat-dissipating device.

Shallow geothermal heat refers to geothermal resources that are deposited in formations that are shallower below the earth's surface. Generally refers to geothermal energy sources with relatively high ground temperatures and relatively low thermal reserves, including groundwater, rock-soil bodies, and energy transferred to the surface of the earth by shallow geothermal energy. In general, shallow geothermal energy is widely used in fields such as heating, cooling, and greenhouse planting by extracting groundwater or utilizing a groundwater heat pump. Compared with deep geothermal heat, shallow geothermal heat is easier to acquire and utilize, and the method has the advantages of low cost, small pollution, high sustainability and the like.

According to researches, the shallow geothermal energy is lower than the deep geothermal energy due to depth limitation (the technical data already show that the temperature is always lower than 25 ℃), and the heat storage capacity is limited, so that the utilization efficiency requirement on the geothermal energy is higher, but the geothermal energy collection process of the conventional geothermal heating equipment has the defects of larger energy loss, low heat supply efficiency and poor energy saving effect; meanwhile, the research also finds that the conventional geothermal heating equipment can operate stably and reduce noise pollution, so that the equipment can operate under a rated power, the heating time of unit volume of water is slow, the hot water is inconvenient to heat and store, and when the demand of people for the hot water is higher in a certain period, the hot water cannot be supplied in time frequently, so that the hot water is inconvenient to use.

Disclosure of Invention

In order to solve the technical problems, the invention provides a shallow geothermal energy heating system, which combines a local energy-saving mechanism to ensure the high-efficiency recovery and storage of geothermal energy to the greatest extent and reduce the geothermal energy loss on the basis of the overall structural layout and the overall structural design; meanwhile, the water heater can rapidly heat water and store hot water, and can directly rapidly heat water under the condition that the stored hot water is insufficient, so that the water heater is favorable for continuously providing sufficient hot water.

The invention provides a shallow geothermal energy heating system which comprises a heat preservation shell, a controller, a heat pump unit, a flow guide frame, a big pump, a hot water adjusting component, a water circulation component and a selective liquid discharging component, wherein the controller is fixedly connected to the lower part of the heat preservation shell, the heat pump unit is fixedly connected to the upper part of the heat preservation shell, the flow guide frame is fixedly connected to the upper side of the inside of the heat pump unit, the big pump is fixedly connected to the top of the heat preservation shell, a water outlet of the big pump is communicated with one end of the flow guide frame, the hot water adjusting component is arranged inside the heat preservation shell, the water circulation heating component is arranged on the hot water adjusting component and is connected with the lower side of the inside of the heat pump unit, and the selective liquid discharging component is arranged on the lower part of the hot water adjusting component and is connected with the heat preservation shell.

As a preferable technical scheme of the invention, the hot water regulating component comprises a heat preservation tank, a heat preservation plate, temperature sensors, servo motors, a first electromagnetic valve, a cover body and a liquid level sensor, wherein the heat preservation tank is fixedly connected inside the heat preservation shell, the heat preservation plate is rotatably connected inside the heat preservation tank, the temperature sensors are fixedly connected to two sides of the heat preservation plate, the two temperature sensors are symmetrically arranged, the servo motors are fixedly connected to two sides of the outer wall of the heat preservation tank, the two servo motors are symmetrically arranged, an output shaft of each servo motor is connected with the heat preservation plate, the first electromagnetic valve is fixedly connected to one side of the outer wall of the heat preservation tank, the first electromagnetic valve is communicated with the heat preservation tank, the cover body is fixedly connected to the other side of the outer wall of the heat preservation tank, a circular hole I is formed in the lower part of the cover body, and the liquid level sensor is fixedly connected to the inner part of the cover body.

As a preferable technical scheme of the invention, the water circulation heating component comprises a small pump, a curved pipe and a flow guiding sleeve, wherein the small pump is fixedly connected to the cover body, a water inlet at the bottom end of the small pump is communicated with a circular hole of the cover body, the curved pipe is fixedly connected to the top end of the small pump, the curved pipe is positioned at the lower side of the interior of the heat pump unit, a water outlet at the top end of the small pump is communicated with one end of the curved pipe, the other end of the curved pipe is fixedly connected with the flow guiding sleeve, the heat insulation tank is communicated with the flow guiding sleeve, and the curved pipe is communicated with the flow guiding sleeve.

As a preferred technical scheme of the invention, the selective liquid discharging component comprises a limit frame body, a movable rod, a first floating plate, a second electromagnetic valve, a drain pipe, a starting switch and a long handle rod, wherein the limit frame body is fixedly connected to the bottom of the heat preservation tank, the limit frame body is communicated with the bottom of the heat preservation tank, the movable rod is connected to the bottom of the limit frame body in a sliding manner, one end of the movable rod is fixedly connected with the first floating plate, the second electromagnetic valve is fixedly connected to the bottom of the limit frame body, the drain pipe is fixedly connected to the bottom of the second electromagnetic valve, the limit frame body and the drain pipe are both communicated with the second electromagnetic valve, the lower part of the drain pipe penetrates through the bottom of the heat preservation shell, the starting switch is fixedly connected to the other end of the movable rod, and one side, close to the controller, of the heat preservation shell is connected with the long handle rod in a sliding manner.

As a preferred technical scheme of the invention, the heat-insulating tank further comprises a guide plate, a rack bar, a reset spring, a guide pipe and a gear, wherein the guide plate is fixedly connected to one side of the outer wall of the heat-insulating tank, the rack bar is connected to the guide plate in a sliding manner, the reset spring is connected between the rack bar and the guide plate, the guide pipe is connected to the guide sleeve in a rotating manner, the upper part of the guide pipe is provided with a circular hole II, the top end of the guide pipe is communicated with the upper part of the guide sleeve, the circular hole II of the guide pipe is communicated with the curved pipe, the bottom end of the guide pipe is fixedly connected with the gear, and the gear is meshed with the rack bar.

As a preferred technical scheme of the invention, the heat-preserving tank further comprises a support plate, a heater and a control switch, wherein the support plate is fixedly connected to one side of the outer wall of the heat-preserving tank, the heater is fixedly connected to one end of the support plate, which is far away from the heat-preserving tank, the heater and the drain pipe are both connected and communicated with the flow guiding sleeve, and the control switch is fixedly connected to the bottom of the heat-preserving shell.

As a preferred technical scheme of the invention, the invention further comprises a liquid extraction area adjusting component, wherein the liquid extraction area adjusting component is arranged between the cover body and the support plate, the liquid extraction area adjusting component comprises a movable plate, a long pipe and a homing spring, the movable plate is connected between the cover body and the support plate in a sliding manner, one end of the movable plate, which is close to the cover body, is provided with a circular hole III, the circular hole III of the movable plate is fixedly connected with the long pipe, the long pipe is positioned in the cover body, and the homing spring is connected between one end of the movable plate, which is close to the support plate, and the support plate.

As a preferable technical scheme of the invention, the invention also comprises an adjusting switch, and the supporting plate is fixedly connected with the adjusting switch.

As a preferable technical scheme of the invention, the floating adjusting component is arranged on the long tube, the floating adjusting component comprises a movable tube and a second floating plate, the top end of the long tube is connected with the movable tube in a sliding manner, the top end of the movable tube is provided with a fourth circular hole, the movable tube is communicated with the long tube, the top end of the movable tube is fixedly connected with the second floating plate, and the second floating plate is connected with the cover body in a sliding manner.

Compared with the prior art, the shallow geothermal energy heating system provided by the embodiment of the invention has the following beneficial effects:

on the one hand, water flows into the curved pipe through the small pump, in the process that the groundwater flows through the diversion frame, the controller can control the heat pump unit to absorb low-temperature heat energy of the groundwater and then convert the low-temperature heat energy into high-temperature heat energy, and then the heat pump unit transfers the high-temperature heat energy to the curved pipe, so that the water flowing through the curved pipe can be heated, the heated water can flow into the heat preservation tank again from the diversion sleeve along the curved pipe, and the water is circularly heated in a reciprocating manner; when the temperature sensor on the upper side of the heat insulation plate detects that the water temperature reaches the set standard temperature, the temperature sensor can start two servo motors, the output shafts of the two servo motors rotate for half a circle to drive the heat insulation plate to overturn, then hot water which is heated and reaches the standard temperature above the heat insulation plate can flow to the lower side of the heat insulation plate and is stored, so that the hot water can circulate in the heat insulation tank, and the purpose of rapidly heating the water and storing the hot water can be achieved.

On the other hand, through promoting long handle pole to the direction that is close to the heat preservation jar and remove for long handle pole top and deflector contact and promote rack pole to the direction that is close to the water conservancy diversion cover and remove, the rack pole is to the direction that is close to the water conservancy diversion cover and remove and drive the gear and forward half circle, the gear forward half circle drives the honeycomb duct forward half circle, thereby make the circular hole of honeycomb duct no longer communicate with the heat preservation jar, the water that flows through curved pipe no longer gets into the heat preservation jar, but can follow the circular Kong Erliu of water conservancy diversion cover and honeycomb duct and get into in the heater, at movable rod downwardly moving's in-process, movable rod bottom can contact and extrude control switch, control switch will start the heater, thereby under the insufficient circumstances of storage hot water, can directly use the heater to heat fast, be favorable to continuing to providing sufficient hot water.

According to the third aspect, the movable plate moves to the direction close to the support plate to drive the long pipe to move to the direction close to the circular hole of the cover body, the circular hole III of the cover body is communicated with the bottom end of the long pipe, if the stored hot water is insufficient, the hot water on the upper layer can flow into the long pipe while being heated by the heat pump unit, then the hot water is pumped into the curved pipe from the long pipe through the small pump, and then the hot water in the curved pipe can directly flow into the heater through the guide sleeve and the guide pipe and heat the hot water, so that the power consumption caused by directly heating cold water by the heater can be reduced, and meanwhile, the water can be heated more quickly, so that enough hot water can be used.

Drawings

Fig. 1 is a schematic diagram of a three-dimensional structure of a shallow geothermal energy heating system according to an embodiment of the present invention;

FIG. 2 is a schematic view of a partially cut-away perspective structure of a shallow geothermal energy heating system according to an embodiment of the present invention;

fig. 3 is a partially split perspective view of a shallow geothermal energy heating system according to an embodiment of the present invention;

FIG. 4 is a schematic view of a first partially cut-away perspective structure of a hot water regulating member in a shallow geothermal energy heating system according to an embodiment of the present invention;

FIG. 5 is an enlarged perspective view of the structure of FIG. 4A according to the present invention;

fig. 6 is a schematic view of a second partially cut-away perspective structure of a hot water adjusting component in a shallow geothermal energy heating system according to an embodiment of the present invention.

FIG. 7 is an enlarged perspective view of the structure of the B in FIG. 6 according to the present invention;

fig. 8 is a schematic view of a third partially cut-away perspective structure of a shallow geothermal energy heating system according to an embodiment of the present invention;

FIG. 9 is a schematic view of a partially cut-away perspective structure of a selective liquid discharge member of a shallow geothermal energy heating system according to an embodiment of the present invention;

fig. 10 is a schematic view of a fourth partially cut-away perspective structure of a shallow geothermal energy heating system according to an embodiment of the present invention;

FIG. 11 is a schematic view of a first partial perspective view of a shallow geothermal energy heating system according to an embodiment of the present invention;

fig. 12 is a schematic diagram of a second partial perspective view of a shallow geothermal energy heating system according to an embodiment of the present invention.

Fig. 13 is a schematic diagram of a split three-dimensional structure of a long pipe, a movable pipe and a floating plate two in a shallow geothermal energy heating system according to an embodiment of the present invention.

Reference numerals: 1-heat-preserving shell, 2-controller, 31-heat pump unit, 32-guide frame, 33-big pump, 41-heat-preserving tank, 42-heat-insulating plate, 43-temperature sensor, 44-servo motor, 45-solenoid valve I, 46-cover, 47-liquid level sensor, 52-small pump, 53-bent pipe, 54-guide sleeve, 61-limit frame, 62-movable rod, 63-floating plate I, 64-solenoid valve II, 65-drain pipe, 66-starting switch, 67-long handle rod, 71-guide plate, 72-rack rod, 73-reset spring, 74-guide pipe, 75-gear, 81-support plate, 82-heater, 83-control switch, 91-movable plate, 92-long pipe, 93-reset spring, 10-regulating switch, 111-movable pipe, 112-floating plate II.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Embodiment one:

the first embodiment of the invention provides a shallow geothermal energy heating system, as shown in fig. 1-6 and 8, comprising a heat preservation shell 1, a controller 2, a heat pump unit 31, a flow guiding frame 32, a big pump 33, a hot water adjusting component, a water circulating component, a selective liquid discharging component and other mechanisms;

the lower part of the heat preservation shell 1 is fixedly connected with a controller 2, the upper part of the heat preservation shell 1 is fixedly connected with a heat pump unit 31, the upper side of the interior of the heat pump unit 31 is fixedly connected with a flow guide frame 32 (as shown in fig. 3, the flow guide frame 32 is a multi-tube bundle integrated flow guide structure), and the top of the heat preservation shell 1 is fixedly connected with a big pump 33; the water outlet of the big pump 33 (or first pump) is connected with one end of the diversion frame 32, the hot water adjusting part is arranged in the heat insulation shell 1, the water circulation heating part is arranged on the hot water adjusting part and connected with the lower side of the heat pump unit 31, and the selective liquid discharging part is arranged at the lower part of the hot water adjusting part and connected with the heat insulation shell 1.

The hot water adjusting component (or called hot water adjusting component) comprises a heat preservation tank 41, a heat insulation plate 42, a temperature sensor 43, a servo motor 44, a first electromagnetic valve 45, a cover 46, a liquid level sensor 47 and other structures (the proposal is that the view angle in fig. 8 mainly shows the structures of the hot water adjusting component and the like); the inside of the heat preservation shell 1 is fixedly connected with a heat preservation tank 41, and the heat preservation tank 41 is of a cavity structure; the inside of the heat preservation tank 41 is rotatably connected with a heat insulation plate 42, and both sides of the heat insulation plate 42 are fixedly connected with temperature sensors 43; the two temperature sensors 43 are symmetrically arranged, and the two sides of the outer wall of the heat preservation tank 41 are fixedly connected with servo motors 44; the two servo motors 44 are symmetrically arranged, and the output shaft of each servo motor 44 is connected with the heat insulation plate 42; one side of the outer wall of the heat preservation tank 41 is fixedly connected with a first electromagnetic valve 45, and the first electromagnetic valve 45 is communicated with the heat preservation tank 41; the other side of the outer wall of the heat preservation tank 41 is fixedly connected with a cover body 46, a circular hole I is formed in the lower portion of the cover body 46, and a liquid level sensor 47 is fixedly connected inside the cover body 46.

The water circulation heating component comprises a small pump 52 (or called a second pump), a curved pipe 53 and a flow guiding sleeve 54, and the small pump 52 is fixedly connected to the cover 46; the water inlet at the bottom end of the small pump 52 is communicated with the circular hole I of the cover 46, the top end of the small pump 52 is fixedly connected with a curved pipe 53, and the curved pipe 53 is positioned in the heat pump unit 31; the curved pipe 53 is positioned at the lower side in the heat pump unit 31, and the water outlet at the top end of the small pump 52 is communicated with one end of the curved pipe 53; the other end of the curved pipe 53 is fixedly connected with a flow guiding sleeve 54, the heat preservation tank 41 is communicated with the flow guiding sleeve 54, and the curved pipe 53 is communicated with the flow guiding sleeve 54.

The selective liquid discharging component comprises a limiting frame body 61, a movable rod 62, a first floating plate 63, a second electromagnetic valve 64, a drain pipe 65, a starting switch 66 and a long handle rod 67; the bottom of the heat preservation tank 41 is fixedly connected with a limit frame body 61, the limit frame body 61 is communicated with the bottom of the heat preservation tank 41, the bottom of the limit frame body 61 is connected with a movable rod 62 in a sliding manner, and one end of the movable rod 62 is fixedly connected with a first floating plate 63; the bottom of the limit frame 61 is fixedly connected with a second electromagnetic valve 64, and the bottom end of the second electromagnetic valve 64 is fixedly connected with a drain pipe 65; the limit frame 61 and the drain pipe 65 are communicated with the second electromagnetic valve 64, the lower part of the drain pipe 65 penetrates through the bottom of the heat-preserving shell 1, the other end of the movable rod 62 is fixedly connected with a starting switch 66, and one side, close to the controller 2, of the heat-preserving shell 1 is connected with a long handle rod 67 in a sliding mode.

In practical application, an operator starts the controller 2, the controller 2 controls the big pump 33 to pump in heated groundwater (in the implementation of specific technology, a heated water tank can be arranged at a corresponding position of a shallow underground layer, groundwater is stored in the heated water tank, the pumped groundwater comes from the heated water tank), the groundwater flows into the diversion frame 32 through the big pump 33, and then flows to the outside again from one end of the diversion frame 32 far away from the big pump 33, so that the recycling of groundwater resources is facilitated;

then, the liquid level sensor 47 detects the liquid level of water above the heat insulation plate 42 in the heat insulation tank 41, and when the liquid level of water is too low, the liquid level sensor 47 controls the first electromagnetic valve 45 to be opened, so that external water can flow into the heat insulation tank 41 through the first electromagnetic valve 45 and the water is above the heat insulation plate 42; meanwhile, the controller 2 controls the small pump 52 to start, the small pump 52 pumps water in the heat preservation tank 41 through the round hole I of the cover 46, and the water flows into the curved pipe 53 through the small pump 52; during the process that the groundwater flows through the diversion frame 32, the controller 2 controls the heat pump unit 31 to further heat the groundwater (i.e. heat treatment), then the heat pump unit 31 generates heat and heats the curved pipe 53 because the curved pipe 53 is positioned in the heat pump unit 31, so as to heat the water in the curved pipe 53, and the heated water flows into the heat preservation tank 41 again from the diversion sleeve 54 along the curved pipe 53, so as to heat the water in a circulating way (the explanation is specifically that the water circulation heating component mainly comprises the small pump 52, the curved pipe 53, the diversion sleeve 54 and other structures; the water outlet at the top end of the small pump 52 is communicated with one end of the curved pipe 53, the other end of the curved pipe 53 is fixedly connected with a guide sleeve 54, the heat preservation tank 41 is communicated with the guide sleeve 54, the curved pipe 53 is positioned in the heat pump 31, heat is generated in the heat pump 31 to heat the curved pipe 53 so as to heat water in the curved pipe 53, the heated water flows into the heat preservation tank 41 again from the guide sleeve 54 along the curved pipe 53, water outside the small pump 52 can continuously flow into the heat preservation tank 41 through a first electromagnetic valve 45 and is positioned above the heat preservation plate 42, the small pump 52 continuously extracts water in the heat preservation tank 41 and is positioned above the heat preservation plate 42, the water flows into the curved pipe 53 and heats the water in the curved pipe 53 through the heat pump 31, the heated water flows back into the heat preservation tank 41 through the guide sleeve 54 until the water in the heat preservation tank 41 is filled with the water above the heat preservation plate 42, the circulating water is completed, the mechanical linkage action operation of the cyclic heating treatment is finished; the controller 2 cooperates with a solenoid valve or the like to realize the above-mentioned cyclic heating control processing;

in addition, the heat pump unit 31 here is a heat pump unit for heating output; firstly absorbing a part of heat energy of an extracted underground water source (namely, a low-temperature underground water source extracted from a heated water tank), then performing further heating treatment through an internal heating structure, converting the heat energy into a higher heat energy water source, and heating the total heat energy output curved pipe 53, so that the heat generated by the heat pump unit 31 is used for performing heat treatment on the curved pipe 53, and because of the heat energy of the ground source, the heat energy absorbed by the heated water tank is limited although the heated water tank can absorb the underground heat energy, and the ground water cannot be naturally heated to a very high temperature;

generally, at deeper underground, the temperature of the groundwater may be higher because the underground has a higher geothermal temperature. In some geothermal active areas, the groundwater temperature may even reach over 50 degrees celsius. But the exploitation depth is generally less than 200 meters, and the temperature of the underground water source of the shallow geothermal energy or the temperature corresponding to the underground geothermal energy is generally only 20-25 ℃; it is necessary to perform relay heating by the heat pump unit 31, and it is more practical and efficient to extract it and then perform extensive hot water circulation heating treatment on the water circulation heating part by the heat pump unit 31;

the heat pump unit 31 is constructed in such a manner that an upper and lower double-layer cover structure is adopted, the upper layer cover guide frame is constructed in such a manner that water is used as a heat source, the lower layer cover curved pipe 53 is constructed, and the like, and the heat pump unit 31 is a heat pump type device capable of realizing a heating cycle.

When the temperature sensor 43 at the upper side of the heat insulation plate 42 detects that the water temperature above the heat insulation plate 42 in the heat insulation tank 41 reaches the set standard temperature, the temperature sensor 43 starts the two servo motors 44, and the output shafts of the two servo motors 44 rotate for half a circle to drive the heat insulation plate 42 to overturn; then, the hot water which has been heated up above the heat insulation plate 42 and reaches the standard temperature can flow to the lower side of the heat insulation plate 42 and store the hot water, so that the hot water can circulate in the heat insulation tank 41, thereby achieving the purpose of rapidly heating the water and storing the hot water.

Then, the hot water stored under the heat insulation plate 42 in the heat insulation tank 41 flows into the limit frame 61 from the bottom of the heat insulation tank 41 (namely, as known from analyzing the structure, the limit frame 61 is communicated with the bottom of the heat insulation tank 41, the bottom of the limit frame 61 is connected with the movable rod 62 in a sliding manner, one end of the movable rod 62 is fixedly connected with the first floating plate 63, the bottom of the limit frame 61 is fixedly connected with the second electromagnetic valve 64), when hot water is needed to be used and the stored hot water is sufficient, an operator pushes the long handle 67 in a direction approaching to the heat insulation tank 41, the top end of the movable rod 62 limits the long handle 67, the long handle 67 contacts and presses the start switch 66, and the start switch 66 controls the second electromagnetic valve 64 to be opened, so that the hot water in the limit frame 61 can flow into the drain pipe 65 through the second electromagnetic valve 64 and then flow out of the drain pipe 65, and hot water can be conveniently discharged according to water requirements.

When the hot water is used, the operator pulls the long handle rod 67 to reset, the long handle rod 67 does not contact and press the start switch 66 any more, the start switch 66 controls the solenoid valve II 64 to be closed, the hot water stops being discharged from the drain pipe 65, and when the hot water is not needed, the operator closes the controller 2.

In summary, the shallow geothermal energy heating and heating system adopted in the embodiment of the invention realizes the conversion of geothermal energy into high-temperature thermal energy through relay heating treatment, can better utilize the absorption of shallow geothermal energy (if the heat pump unit 31, the flow guide frame 32 and the water circulation heating component are not installed, the heat is conducted to the water circulation heating component only by low-energy shallow groundwater, the conduction efficiency is relatively low), and the wide hot water circulation heating treatment of the water circulation heating component is more practical and has higher efficiency;

embodiment two:

on the basis of the first embodiment of the present invention, as shown in fig. 5 to 10, the second embodiment of the present invention provides a shallow geothermal energy heating system, which further includes a guide plate 71, a rack bar 72, a return spring 73, a guide tube 74 and a gear 75; a guide plate 71 is fixedly connected to one side of the outer wall of the heat preservation tank 41, a rack bar 72 is connected to the guide plate 71 in a sliding mode, the rack bar 72 is horizontally arranged, and a reset spring 73 is connected between the guide plates 71; the flow guiding sleeve 54 is rotatably connected with a flow guiding pipe 74, a second round hole is formed in the upper portion of the flow guiding pipe 74, and the top end of the flow guiding pipe 74 is communicated with the upper portion of the flow guiding sleeve 54; the circular hole II of the diversion pipe 74 is communicated with the curved pipe 53, a gear 75 is fixedly connected to the bottom end of the diversion pipe 74, the gear 75 is meshed with the rack bar 72, and the gear 75 is located below the diversion sleeve 54.

Still including extension board 81, heater 82 and control switch 83, fixedly connected with extension board 81 on the outer wall one side of insulation can 41, the one end fixedly connected with heater 82 that insulation can 41 was kept away from to extension board 81, and heater 82 and drain pipe 65 are all connected and communicate with water conservancy diversion cover 54, and insulation housing 1 bottom fixedly connected with control switch 83, control switch 83 are located under the movable rod 62.

When the hot water stored in the heat preservation tank 41 and the limit frame 61 is insufficient, the buoyancy of the hot water is reduced, the first floating plate 63 drives the movable rod 62 to move downwards, the top end of the movable rod 62 is no longer in contact with the long handle rod 67 and limits the long handle rod 67, and then an operator can push the long handle rod 67 to move continuously in a direction approaching to the heat preservation tank 41, so that the top end of the long handle rod 67 is in contact with the guide plate 71 and pushes the rack rod 72 to move in a direction approaching to the guide sleeve 54;

the reset spring 73 is stretched, the rack bar 72 moves towards the direction approaching the diversion sleeve 54 to drive the gear 75 to rotate forward for half a circle, and the gear 75 rotates forward for half a circle to drive the diversion pipe 74 to rotate forward for half a circle, so that the second circular hole of the diversion pipe 74 is not communicated with the heat preservation tank 41 any more;

the water flowing through the curved pipe 53 does not enter the heat preservation tank 41 any more, but enters the heater 82 along the guide sleeve 54 and the round Kong Erliu of the guide pipe 74, and in the process that the movable rod 62 moves downwards, the bottom of the movable rod 62 contacts and presses the control switch 83, and the control switch 83 starts the heater 82, so that the heater 82 can be directly used for quickly heating the water under the condition that the hot water is not sufficiently stored, and the continuous supply of sufficient hot water is facilitated;

then, the hot water is discharged from the heater 82 along the drain pipe 65, when the heater 82 is used for heating the direct water, the water above the heat insulation plate 42 is not heated any more, the water temperature above the heat insulation plate 42 cannot reach the set standard temperature, the liquid level of the water above the heat insulation plate 42 is continuously reduced, but the temperature sensor 43 and the liquid level sensor 47 are not operated at the moment;

when the heater 82 is stopped to directly heat water and hot water is stored in the heat preservation tank 41 again after a period of time, the hot water enters the limit frame 61 again, the first floating plate 63 drives the movable rod 62 to move upwards again, the bottom of the movable rod 62 is separated from the control switch 83, and the control switch 83 turns off the heater 82;

when the heater 82 is not used for heating water, the long handle rod 67 is not required to be pushed continuously, the top end of the long handle rod 67 is separated from the guide plate 71, the reset spring 73 resets to drive the rack rod 72 to move and reset in the direction away from the guide sleeve 54, the rack rod 72 moves and resets to drive the gear 75 to reverse half circle in the direction away from the guide sleeve 54, the gear 75 reverses half circle to drive the guide tube 74 to reverse half circle, the second round hole of the guide tube 74 is communicated with the guide sleeve 54 and the heat preservation tank 41 again, and water in the curved tube 53 enters the heat preservation tank 41 again through the guide sleeve 54 and the round Kong Erliu of the guide tube 74.

Embodiment III:

on the basis of the second embodiment of the present invention, as shown in fig. 11 to 13, the third embodiment of the present invention provides a shallow geothermal energy heating system, which further includes a liquid extraction area adjusting component, the liquid extraction area adjusting component is disposed between the cover 46 and the support 81, the liquid extraction area adjusting component includes a movable plate 91, a long tube 92, and a homing spring 93, the movable plate 91 is slidably connected between the cover 46 and the support 81, one end of the movable plate 91, which is close to the cover 46, is provided with a circular hole three, a long tube 92 is fixedly connected to the circular hole three of the movable plate 91, the long tube 92 is located inside the cover 46, and a homing spring 93 is connected between one end of the movable plate 91, which is close to the support 81, and the support 81.

When the rack bar 72 moves towards the direction approaching the guide sleeve 54, the rack bar 72 contacts with the movable plate 91 and pushes the movable plate 91 to move towards the direction approaching the support plate 81, the homing spring 93 is compressed, and the movable plate 91 moves towards the direction approaching the support plate 81 to drive the long tube 92 to move towards the direction approaching the circular hole of the cover 46, so that the third circular hole of the cover 46 is communicated with the bottom end of the long tube 92;

if the stored hot water is insufficient, the heat pump unit 31 heats the water, meanwhile, due to the principle of thermal expansion and contraction of the water, the warm water which is not heated well above the heat insulation plate 42 is positioned on the upper layer of the water, and the cold water flowing in from the first electromagnetic valve 45 is positioned on the lower layer of the water, so that the warm water on the upper layer can flow into the long pipe 92, the warm water is pumped into the curved pipe 53 from the long pipe 92 through the small pump 52, and then the warm water in the curved pipe 53 can directly flow into the heater 82 through the guide sleeve 54 and the guide pipe 74 and heat the warm water, thereby reducing the power consumption generated by directly heating the cold water by the heater 82;

the liquid extraction area adjusting component adopted by the embodiment of the invention is a local area energy-saving heating mechanism, and the energy consumption in the heating process is reduced by utilizing the principle of water expansion and contraction and the functional design of the corresponding mechanism;

meanwhile, the liquid extraction area adjusting part can heat water more quickly so that enough hot water can be used in time, when the heater 82 is not used for heating warm water any more, the homing spring 93 resets to drive the movable plate 91 to move and reset in the direction away from the support plate 81, the movable plate 91 moves and resets in the direction away from the support plate 81 to drive the long tube 92 to move and reset, and the bottom end of the long tube 92 is separated from the circular hole III of the cover body 46.

In summary, the liquid extraction area adjusting component adopted in the embodiment of the invention is a mechanism device with dual functions of energy saving and quick response, and further improves the thermal efficiency.

Embodiment four:

on the basis of the third embodiment, as shown in fig. 7 and 11, the shallow geothermal energy heating system provided by the fourth embodiment of the invention further comprises an adjusting switch 10, and the supporting plate 81 is fixedly connected with the adjusting switch 10.

When the movable plate 91 moves in a direction approaching the support plate 81, one end of the movable plate 91 contacts and presses the adjustment switch 10; the adjusting switch 10 can adjust the power of the heat pump unit 31, so that the power of the heat pump unit 31 is increased, and the speed of the heat pump unit 31 absorbing heat energy is increased, so as to further improve the heating efficiency of water.

When the heater 82 is not used for heating the warm water, the movable plate 91 moves and resets in a direction away from the support plate 81, the regulating switch 10 is not pressed any more, and the regulating switch 10 can restore the power of the heat pump unit 31.

Fifth embodiment:

on the basis of the fourth embodiment, as shown in fig. 12 and 13, the shallow geothermal energy heating system provided by the fourth embodiment of the present invention further includes a floating adjustment member, the floating adjustment member is disposed on the long tube 92, the floating adjustment member includes a movable tube 111 and a second floating plate 112, the top end of the long tube 92 is slidably connected with the movable tube 111, the top end of the movable tube 111 is provided with a fourth circular hole, the movable tube 111 is communicated with the long tube 92, the top end of the movable tube 111 is fixedly connected with the second floating plate 112, and the second floating plate 112 is slidably connected with the cover 46.

Due to the buoyancy of water, along with the lifting change of the water surface above the heat insulation plate 42, the floating plate II 112 drives the movable tube 111 to reciprocate up and down on the long tube 92, so that the round hole IV of the movable tube 111 is always positioned in the water at the upper layer, and therefore, hotter water can flow into the long tube 92 from the round hole IV of the movable tube 111, be pumped into the curved tube 53 from the long tube 92 through the small pump 52, and flow into the heater 82 from the curved tube 53 for further heating, thereby further reducing the power consumption of the heater 82 and improving the heating efficiency of the water.

Therefore, in the shallow geothermal energy heating system provided by the fourth embodiment of the present invention, the floating adjustment component adopted in the control process of the heater 82 realizes the effect of reducing the power consumption of the heater 82, and further realizes the technical effect of energy saving.

In summary, as the geothermal energy of the shallow geothermal energy source is limited and the temperature is lower, the shallow geothermal energy heating system provided by the embodiment of the invention has the energy-saving effect everywhere on the overall structural layout and the overall structural design and combined with the local energy-saving mechanism function, thereby ensuring the recovery and storage of the geothermal energy source to the greatest extent and obviously improving the efficient exploitation and utilization of the shallow geothermal energy source.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. A shallow geothermal energy heating system is characterized in that: the device comprises a heat-preserving shell (1), a controller (2), a heat pump unit (31), a flow guide frame (32), a big pump (33), a hot water adjusting component, a water circulating component and a liquid selecting and draining component, wherein the controller (2) is fixedly connected to the lower part of the heat-preserving shell (1);

the heat-preserving shell (1) is fixedly connected with a heat pump unit (31), the upper side of the interior of the heat pump unit (31) is fixedly connected with a flow guide frame (32), and the top of the heat-preserving shell (1) is fixedly connected with a big pump (33); the method comprises the steps of carrying out a first treatment on the surface of the

The water outlet of the big pump (33) is communicated with one end of the flow guiding frame (32), the hot water adjusting part is arranged inside the heat insulation shell (1), the water circulation heating part is arranged on the hot water adjusting part and is connected with the lower side inside the heat pump unit (31), and the liquid discharging part is arranged at the lower part of the hot water adjusting part and is connected with the heat insulation shell (1).

2. A shallow geothermal energy heating system according to claim 1 wherein: the hot water regulating component comprises a heat preservation tank (41), a heat insulation plate (42), a temperature sensor (43), a servo motor (44), a first electromagnetic valve (45), a cover body (46) and a liquid level sensor (47);

the heat insulation device comprises a heat insulation shell (1), a heat insulation tank (41) and a heat insulation plate (42), wherein the heat insulation shell (1) is fixedly connected with the heat insulation tank (41), the heat insulation plate (42) is rotatably connected with the heat insulation shell, temperature sensors (43) are fixedly connected to the two sides of the heat insulation plate (42), and the two temperature sensors (43) are symmetrically arranged; the two sides of the outer wall of the heat preservation tank (41) are fixedly connected with servo motors (44), the two servo motors (44) are symmetrically arranged, and the output shaft of each servo motor (44); is connected with a heat insulation plate (42);

one side of the outer wall of the heat preservation tank (41) is fixedly connected with a first electromagnetic valve (45), the first electromagnetic valve (45) is communicated with the heat preservation tank (41), the other side of the outer wall of the heat preservation tank (41) is fixedly connected with a cover body (46), the lower part of the cover body (46) is provided with a first circular hole, and a liquid level sensor (47) is fixedly connected inside the cover body (46).

3. A shallow geothermal energy heating system according to claim 2 wherein: the water circulation heating component comprises a small pump (52), a curved pipe (53) and a guide sleeve (54), the small pump (52) is fixedly connected to the cover body (46), a water inlet at the bottom end of the small pump (52) is communicated with a circular hole I of the cover body (46), and the curved pipe (53) is fixedly connected to the top end of the small pump (52);

the heat-preserving heat pump is characterized in that the curved pipe (53) is located inside the heat pump unit (31), the curved pipe (53) is located at the lower side inside the heat pump unit (31), a water outlet at the top end of the small pump (52) is communicated with one end of the curved pipe (53), the other end of the curved pipe (53) is fixedly connected with the flow guiding sleeve (54), the heat-preserving tank (41) is communicated with the flow guiding sleeve (54), and the curved pipe (53) is communicated with the flow guiding sleeve (54).

4. A shallow geothermal energy heating system according to claim 3 wherein: the selective liquid discharging part comprises a limiting frame body (61), a movable rod (62), a first floating plate (63), a second electromagnetic valve (64), a drain pipe (65), a starting switch (66) and a long handle rod (67);

the bottom of the heat preservation tank (41) is fixedly connected with a limiting frame body (61), and the limiting frame body (61) is communicated with the bottom of the heat preservation tank (41);

the bottom of the limit frame body (61) is connected with a movable rod (62) in a sliding manner, and one end of the movable rod (62) is fixedly connected with a first floating plate (63); the bottom of the limit frame body (61) is fixedly connected with a second electromagnetic valve (64), and the bottom end of the second electromagnetic valve (64) is fixedly connected with a drain pipe (65);

the limiting frame body (61) and the drain pipe (65) are communicated with the electromagnetic valve II (64), the lower portion of the drain pipe (65) penetrates through the bottom of the heat-preserving shell (1), the other end of the movable rod (62) is fixedly connected with a starting switch (66), and one side, close to the controller (2), of the heat-preserving shell (1) is connected with a long handle rod (67) in a sliding mode.

5. The shallow geothermal energy heating system of claim 4, wherein: the device also comprises a guide plate (71), a rack bar (72), a return spring (73), a guide pipe (74) and a gear (75);

wherein, fixedly connected with deflector (71) on outer wall one side of insulation can (41), sliding connection has rack bar (72) on deflector (71), be connected with reset spring (73) between rack bar (72) and deflector (71), rotationally be connected with honeycomb duct (74) in guide sleeve (54), circular hole two is opened on honeycomb duct (74) upper portion, honeycomb duct (74) top and guide sleeve (54) upper portion intercommunication, circular hole two and curved pipe (53) intercommunication of honeycomb duct (74), honeycomb duct (74) bottom fixedly connected with gear (75), gear (75) and rack bar (72) meshing.

6. A shallow geothermal energy heating system according to claim 5 wherein: still including extension board (81), heater (82) and control switch (83), fixedly connected with extension board (81) on insulation can (41) outer wall one side, the one end fixedly connected with heater (82) that insulation can (41) was kept away from to extension board (81), heater (82) and drain pipe (65) all are connected and communicate with water conservancy diversion cover (54), insulation casing (1) bottom fixedly connected with control switch (83).

7. The shallow geothermal energy heating system of claim 6, wherein: still including the regional regulation part of drawing liquid, the regional regulation part of drawing liquid sets up between lid (46) and extension board (81), the regional regulation part of drawing liquid is including fly leaf (91), long tube (92), return spring (93), be connected with fly leaf (91) between lid (46) and the extension board (81) in the slidingtype, the one end that fly leaf (91) is close to lid (46) is opened there is circular hole III, fixedly connected with long tube (92) on the circular hole III of fly leaf (91), long tube (92) are located inside lid (46), be connected with return spring (93) between one end that fly leaf (91) is close to extension board (81) and extension board (81).

8. The shallow geothermal energy heating system of claim 7, wherein: the device also comprises an adjusting switch (10), and the supporting plate (81) is fixedly connected with the adjusting switch (10).

9. The shallow geothermal energy heating system of claim 8, wherein: still including floating adjusting part, floating adjusting part sets up on long tube (92), and floating adjusting part is including movable tube (111) and floating plate two (112), and movable tube (111) are connected with to long tube (92) top slidingtype, and circular hole four has been opened on movable tube (111) top, and movable tube (111) and long tube (92) intercommunication, movable tube (111) top fixedly connected with floating plate two (112), floating plate two (112) are connected with lid (46) slidingtype.