A highly efficient and energy-saving series solar heating system

Abstract

An efficient and energy-saving series solar heating system includes a water storage tank, a circulation pipe, a heater unit, a stop valve, and a circulation water pump; the water outlet end of the circulation pipe is arranged at the bottom end of one side of the water storage tank and is connected to the side wall surface of the water storage tank; the return water end of the circulation pipe is arranged at the middle end of one side of the water storage tank and is connected to the side wall surface of the water storage tank; a plurality of heater units are arranged in an array, two adjacent heater units are arranged end to end through the circulation pipe, and a plurality of heater units are arranged in series through the circulation pipe; the stop valve is arranged at the return water end of the circulation pipe; the circulation water pump is arranged at the return water end of the circulation pipe and is arranged on one side of the stop valve. The present invention can adjust the number of heater units, perform modular assembly, and the assembly process is simple; a single heater unit has a large heat exchange area and high heat exchange efficiency.

Description

Technical Field

[0001] The invention relates to the field of heat exchange equipment, in particular to a highly efficient and energy-saving series solar heating system. Background Art

[0002] At present, there are many forms of heating systems in the market, such as electric heating, solar heating, ground source heat exchange, combustion heat exchange, etc. The corresponding water heater structures used in the system include electric water heaters, solar water heaters, air energy heat pump water heaters, electric heating boilers, etc., and the most used are electric water heaters and solar water heaters. Among them, solar water heaters can be further divided into water tank type or heat pipe type. The water tank type water heater uses the sun to irradiate the heat collecting panel or the solar panel to heat the water, and the heated water is stored in the water tank; while the heat pipe type water heater stores the water in multiple metal tubes or multiple vacuum glass tubes, and uses the sun to directly heat the water in the tube. Compared with the water tank type solar heating system, its existing system structure has the following technical defects: 1) The setting of the solar panel in the heating system needs to be modularly assembled. After the system is installed and set, the number and installation position of the solar panel cannot be adjusted, resulting in a fixed heat exchange efficiency of the solar panel to the heating system, and it is impossible to achieve dynamic adjustment of the heating system to achieve the system's high heat exchange efficiency and energy saving requirements. 2) In the existing heating system, whether using a collector plate, solar panel or metal tube structure for heat exchange, the design and installation angle needs to be coordinated with the direct angle of the sun, so that the solar heater receives the longest light. The calculation and installation process are complicated, and the solar heat exchanger cannot always be in the best irradiation frame with the sun to make the system have the highest heat exchange efficiency. 3) The heater structure in the solar heating system realizes heat exchange through water flow and light. The water is heated by flat plates, pipes or water heating. The heat exchange area is small and the heat exchange effect is poor, resulting in low heat exchange efficiency. Summary of the invention

[0003] In order to solve the above problems, the present invention discloses a highly efficient and energy-saving series solar heating system, and its specific technical scheme is as follows: a highly efficient and energy-saving series solar heating system includes a water storage tank, a circulation pipe, a heater unit, a stop valve, and a circulation water pump;

[0004] The water outlet end of the circulation pipe is arranged at the bottom end of one side of the water tank and is connected to the side wall surface of the water tank; the return water end of the circulation pipe is arranged at the middle end of one side of the water tank and is connected to the side wall surface of the water tank; there are multiple heater units, and the multiple heater units are arranged in an array, and two adjacent heater units are connected end to end through the circulation pipe, and the multiple heater units are arranged in series through the circulation pipe; the stop valve is arranged at the return water end of the circulation pipe; the circulation water pump is arranged at the return water end of the circulation pipe and is arranged on one side of the stop valve.

[0005] Furthermore, a single heater unit comprises a base, a foot, an inner lining, an outer shell and a temperature sensor; the interior of the base is a hollow structure; the bottom end of the top surface of the base is circumferentially grooved to form a base slot; one side of the bottom end of the top surface of the base is notched, and a water outlet is provided at the top bottom end of the base, the water outlet passes through the base and extends into the interior of the base; the bottom end of the top surface of the base is through-hole-shaped to form a sensor assembly port; the foot is arranged on the inner bottom side of the base, and the foot is fixed to the bottom surface of the base; the inner lining The base is a hollow structure, the liner is arranged at the top end of the base, the liner and the base are fixed, the top end of the liner is a through hole to form a water inlet, and the bottom end of the liner is sealed with the top end of the base; the outer shell is arranged on the outer side of the top surface of the base, and the outer shell circumferentially wraps the liner, the bottom end of the outer shell is circumferentially embedded in the base slot of the base, and the outer shell and the base are sealed by sealant; the temperature sensor is arranged on the outer wall of the base, and the temperature sensor is obliquely fixed to the base.

[0006] Furthermore, the base is formed by injection molding; the bottom end of the base is a disc-shaped structure, the top end of the base is a truncated cone-shaped structure with a narrow top end and a wide bottom end, the diameter of the bottom side of the top end of the base is smaller than the inner diameter of the base slot; the top end side wall of the base is a concave arc structure.

[0007] Furthermore, there are four base feet, each of which is a cylindrical, hollow structure, and each of which is an integral structure with the base through injection molding; the end of each base foot extends out from the top surface of the base.

[0008] Furthermore, there are two sensor assembly openings, which are respectively arranged on both sides of the water outlet, and each of the sensor assembly openings is connected to the corresponding base foot; the bottom side wall surfaces of the two corresponding base feet are notched structures to form base foot slots.

[0009] Furthermore, the inner side wall of the top end surface of the base is axially raised to form a base plug-in ring, the bottom outer diameter of the liner is consistent with the top outer diameter of the base, and the inner side wall of the bottom end surface of the liner is axially grooved to form a liner plug-in groove, and the base plug-in ring is embedded in the liner plug-in groove to achieve plug-in fixation between the liner and the base, and the sealing setting between the liner and the base is achieved by circumferentially coating sealant.

[0010] Furthermore, a water inlet pipe is provided inside the liner, the water inlet pipe and the water inlet are connected, water inlet pipe fixing plates are provided on both sides of the water inlet pipe, and the water inlet pipe is fixed to the inner wall of the liner through the water inlet pipe fixing plates on both sides.

[0011] Furthermore, the outside of the lining is provided with guide vanes, wherein four of the guide vanes are circumferentially arranged at the top of the outer wall of the lining, and the multiple guide vanes are arranged in a "cross" shape, each of the guide vanes is longitudinally arranged and vertically fixed to the outer wall of the lining, and the side of each of the guide vanes is curved.

[0012] Furthermore, the setting position of the temperature sensor is adapted to the position of the sensor assembly opening, and the wire of the temperature sensor passes through the sensor assembly opening, extends into the corresponding foot, and passes out from the corresponding foot slot.

[0013] Furthermore, the shell is made of aluminum.

[0014] Furthermore, the outer wall surface of the shell is coated with a coating, and the coating is a carbon nano coating.

[0015] Furthermore, the circulation pipe is directly connected to the bottom end of the water inlet pipe through a water pipe, and the circulation pipe is connected to the bottom end of the water outlet through a water pipe elbow.

[0016] Furthermore, the number of the stop valves is at least two, and each of the stop valves is arranged in parallel on the pipeline of the circulation pipe.

[0017] Furthermore, the number of the circulating water pumps is at least two, and the circulating water pumps are arranged in the water storage tank; each of the stop valves is arranged in parallel on the pipeline of the circulating pipe and is arranged at the inlet end corresponding to the circulating water pump.

[0018] Furthermore, the temperature sensor is arranged in a single heater unit at the end of the circulation pipe, and the temperature sensor in the heater unit is electrically connected to the controller through a wire; the temperature sensor is also arranged in the water storage tank, and the temperature sensor in the water storage tank is electrically connected to the controller through a wire; each of the circulation water pumps is electrically connected to the controller through a wire.

[0019] The beneficial effects of the present invention are:

[0020] 1) The present invention can arrange multiple heater units in an array, and a single heater unit can be quickly assembled with a circulation pipe through a joint structure. Multiple adjacent heater units are connected end to end through pipelines to form a series connection structure. The number of heater units in the heating system can be arbitrarily disassembled and adjusted according to the heating demand, thereby realizing dynamic adjustment of the system. The use of different numbers of heater units realizes energy-saving use of the solar heating system.

[0021] 2) The present invention designs a heater that uses solar energy as a heat source to exchange heat with water. Water can enter the outer shell through the top end, and discharge from the outer shell from the bottom end after filling the inner cavity of the outer shell. During this circulation process, water passes through the dispersion effect of the lining to form an umbrella-shaped water film flow channel that flows on the wall of the lining. There is a large heat exchange area between the water and the outer shell, so that the heat exchange between the outer shell and the water has a very high heat exchange efficiency.

[0022] 3) The present invention is arranged with respect to the structural form of the heater, and the outer shell of the heater is arranged as a cylindrical structure, and is arranged inside the outer shell in conjunction with a cylindrical base and an inner lining structure; the outer shape of the heater can absorb the radiation of solar light in a circumferential direction, and no matter what solar altitude the sun is at, or what incident angle the sunlight is at, the heater can absorb the radiated solar energy in a circumferential direction to the maximum extent, so that the heater is always in a state of high heat exchange efficiency; at the same time, the structure of the heater does not need to calculate the local geographical factors such as the noon solar altitude and the solar incident angle, so as to adjust the installation angle of the heater. The heater is arranged vertically and the installation process can be completed, which simplifies the installation process of the heater, and the heater has strong installation flexibility and high convenience.

[0023] 4) The present invention provides a coating structure for the shell of the heater, so that on the basis of the original larger heat exchange area of ​​the shell, the surface porosity of the shell and the heat absorption performance of the shell are further improved, thereby improving the radiation heat exchange efficiency of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a system flow chart of the solar heating system of the present invention.

[0025] Figure 2 It is a model connection diagram of the controller of the present invention.

[0026] Figure 3 It is a schematic diagram of the appearance structure of a single heater unit of the present invention.

[0027] Figure 4 It is a structural schematic diagram of the shell of the present invention.

[0028] Figure 5 It is a schematic diagram of the overall structure of the base and the liner after assembly of the present invention.

[0029] Figure 6 It is a structural schematic diagram of the base of the present invention.

[0030] Figure 7 It is a schematic diagram of the end face of the liner of the present invention.

[0031] Figure 8 It is a schematic diagram of the bottom structure of the base of the present invention.

[0032] List of reference numerals:

[0033] Water storage tank 1;

[0034] Circulation pipe 2;

[0035] Heater unit 3;

[0036] Base 3-1;

[0037] Base card slot 3-1-1, water outlet 3-1-2, sensor assembly port 3-1-3, base plug ring 3-1-4;

[0038] Bottom foot 3-2;

[0039] Bottom foot slot 3-2-1;

[0040] Lining 3-3;

[0041] Water inlet 3-3-1, lining plug-in groove 3-3-2, water inlet pipe 3-3-3, guide plate 3-3-4, water inlet pipe fixing plate 3-3-5;

[0042] Shell 3-4;

[0043] Temperature sensor 3-5;

[0044] Stop valve 4;

[0045] Circulating water pump 5;

[0046] Controller 6. DETAILED DESCRIPTION

[0047] In order to make the technical solution of the present invention clearer, the present invention is further described below in conjunction with the accompanying drawings. Any equivalent replacement of the technical features of the technical solution of the present invention and any solution derived by conventional reasoning shall fall within the protection scope of the present invention. The fixed connection, fixed setting, and fixed structure mentioned in this embodiment are all well-known technologies known to those skilled in the art such as gluing, welding, screw connection, bolt and nut connection, and riveting.

[0048] As can be seen from the accompanying drawings, a highly efficient and energy-saving series solar heating system includes a water storage tank 1, a circulation pipe 2, a heater unit 3, a stop valve 4, and a circulation water pump 5;

[0049] The water outlet end of the circulation pipe 2 is arranged at the bottom end of one side of the water tank 1 and is connected to the side wall surface of the water tank 1; the return water end of the circulation pipe 2 is arranged at the middle end of one side of the water tank 1 and is connected to the side wall surface of the water tank 1; the number of the heater units 3 is multiple, and the multiple heater units 3 are arranged in an array, and two adjacent heater units 3 are connected end to end through the circulation pipe 2, and the multiple heater units 3 are arranged in series through the circulation pipe 2; the stop valve 4 is arranged at the return water end of the circulation pipe 2; the circulation water pump 5 is arranged at the return water end of the circulation pipe 2 and is arranged on one side of the stop valve 4.

[0050] Furthermore, a single heater unit 3 comprises a base 3-1, a foot 3-2, a lining 3-3, a shell 3-4 and a temperature sensor 3-5; the interior of the base 3-1 is a hollow structure; the bottom end of the top surface of the base 3-1 is a groove-shaped structure in the circumferential direction, forming a base card slot 3-1-1; one side of the bottom end of the top surface of the base 3-1 is notched, and a water outlet 3-1-2 is provided at the top bottom end of the base 3-1, and the water outlet 3-1-2 passes through the base 3-1 and extends into the interior of the base 3-1; the bottom end of the top surface of the base 3-1 is a through hole, forming a sensor assembly port 3-1-3; the foot 3-2 is arranged on the inner bottom side of the base 3-1, and the foot 3-2 is fixed to the bottom surface of the base 3-1; the lining 3- The interior of 3 is a hollow structure, the lining 3-3 is arranged at the top end of the base 3-1, the lining 3-3 and the base 3-1 are fixedly arranged, the top end of the lining 3-3 is in the shape of a through hole to form a water inlet 3-3-1, and the bottom end of the lining 3-3 is sealed with the top end of the base 3-1; the outer shell 3-4 is arranged on the outer side of the top surface of the base 3-1, and the outer shell 3-4 circumferentially wraps the lining 3-3, the bottom end of the outer shell 3-4 is circumferentially embedded in the base slot 3-1-1 of the base 3-1, and the outer shell 3-4 and the base 3-1 are sealed by sealant; the temperature sensor 3-5 is arranged on the outer wall of the base 3-1, and the temperature sensor 3-5 is obliquely fixed to the base 3-1.

[0051] Furthermore, the base 3-1 is formed by injection molding; the bottom end of the base 3-1 is a disc-shaped structure, the top end of the base 3-1 is a truncated cone-shaped structure with a narrow top end and a wide bottom end, and the diameter of the bottom side of the top end of the base 3-1 is smaller than the inner diameter of the base slot 3-1-1; the top side wall of the base 3-1 is a concave arc structure.

[0052] Furthermore, there are four base feet 3-2, each of which is a cylindrical structure with a hollow structure. Each of the base feet 3-2 and the base 3-1 are formed into an integral structure by injection molding; the end of each of the base feet 3-2 extends out from the top surface of the base 3-1.

[0053] Furthermore, there are two sensor assembly ports 3-1-3, which are respectively arranged on both sides of the water outlet 3-1-2, and each sensor assembly port 3-1-3 is connected with the corresponding base 3-2; the bottom side wall surfaces of the two corresponding bases 3-2 are notch-shaped structures, forming a base card slot 3-2-1.

[0054] Furthermore, the inner side wall of the top end surface of the base 3-1 is axially convex to form a base plug-in ring 3-1-4, the bottom outer diameter of the lining 3-3 is consistent with the top outer diameter of the base 3-1, and the inner side wall of the bottom end surface of the lining 3-3 is axially grooved to form a lining plug-in groove 3-3-2, and the base plug-in ring 3-1-4 is embedded in the lining plug-in groove 3-3-2 to achieve plug-in fixation of the lining 3-3 and the base 3-1, and the sealing setting of the lining 3-3 and the base 3-1 is achieved by circumferentially coating the sealant.

[0055] Furthermore, a water inlet pipe 3-3-3 is provided inside the lining 3-3, and the water inlet pipe 3-3-3 is connected with the water inlet 3-3-1. Water inlet pipe fixing plates 3-3-5 are provided on both sides of the water inlet pipe 3-3-3. The water inlet pipe 3-3-3 is fixed to the inner wall of the lining 3-3 through the water inlet pipe fixing plates 3-3-5 on both sides.

[0056] Furthermore, the outside of the lining 3-3 is provided with guide plates 3-3-4, and there are four guide plates 3-3-4, which are circumferentially arranged at the top of the outer wall of the lining 3-3, and the multiple guide plates 3-3-4 are arranged in a "cross" shape. Each of the guide plates 3-3-4 is longitudinally arranged and vertically fixed to the outer wall of the lining 3-3, and the side of each of the guide plates 3-3-4 is curved.

[0057] Furthermore, the setting position of the temperature sensor 3-5 is adapted to the position of the sensor assembly port 3-1-3, and the wire of the temperature sensor 3-5 passes through the sensor assembly port 3-1-3 and extends into the corresponding base foot 3-2, and comes out from the corresponding base foot slot 3-2-1.

[0058] Furthermore, the shell 3-4 is made of aluminum.

[0059] Furthermore, the outer wall surface of the shell 3 - 4 is coated with a coating, and the coating is a carbon nano coating.

[0060] Furthermore, the circulation pipe 2 is directly connected to the bottom end of the water inlet pipe 3-3-3 through a water pipe, and the circulation pipe 2 is connected to the bottom end of the water outlet 3-1-2 through a water pipe elbow.

[0061] Furthermore, the number of the stop valves 4 is at least two, and each of the stop valves 4 is arranged in parallel on the pipeline of the circulation pipe 2 .

[0062] Furthermore, the number of the circulating water pumps 5 is at least two, and the circulating water pumps 5 are arranged in the water storage tank 1; each of the stop valves 4 is arranged in parallel on the pipeline of the circulating pipe 2 and is arranged at the inlet end corresponding to the circulating water pump 5.

[0063] Furthermore, the temperature sensor 3-5 is arranged in a single heater unit 3 at the end of the circulation pipe 2, and the temperature sensor 3-5 in the heater unit 3 is electrically connected to the controller 6 through a wire; the temperature sensor 3-5 is also arranged in the water tank 1, and the temperature sensor 3-5 in the water tank 1 is electrically connected to the controller 6 through a wire; each of the circulating water pumps 5 is electrically connected to the controller 6 through a wire.

[0064] The principle of the solar heating system of the present invention is:

[0065] Multiple heater units are connected in series through a circulation pipe, and multiple heater units are arranged vertically; by starting the circulation water pump, negative pressure is generated in the circulation pipe, and the water in the water storage tank flows through the circulation pipe into each heater unit in turn, and the water in the circulation pipe enters the water inlet pipe and flows into the cavity in the shell through the water outlet, and the water is circumferentially distributed on the side wall surface of the liner, and the water flows downward along the side wall surface of the liner and the base through the action of multiple guide plates, filling the cavity between the shell and the base and the liner, and the water is discharged from the water outlet to the circulation pipe and enters the next heater unit; after continuous temperature rise in multiple heater units, the water is sent back to the water storage tank through the stop valve and the circulation water pump;

[0066] When water flows into multiple heater units, the temperature sensor monitors the water flow temperature in the terminal heating unit and transmits the temperature data to the controller; the temperature sensor simultaneously monitors the water temperature in the water tank; the controller adjusts the flow rate of the circulating water pump according to the difference in temperature data. When the difference in temperature data is large, the controller controls the circulating water pump to increase the flow rate and increase the flow rate of water in the circulating pipe; when the difference in temperature data is small, the controller controls the circulating water pump to reduce the flow rate and reduce the flow rate of water in the circulating pipe.

[0067] The assembly principle of the heater unit of the present invention is:

[0068] First, the lining buckle is placed on the top surface of the base, and the base plug ring is embedded in the lining plug-in groove to achieve the end-to-end plug-in fixation of the base and the lining, and then the seam between the base and the lining is coated with sealant to achieve a sealing setting between the base and the lining; then the wire of the temperature sensor is inserted from the sensor assembly port and out from the base foot and the base foot slot, the temperature sensor is fixed to the side wall of the base by fitting, and one side of the sensor assembly port is sealed with sealant; the other side of the sensor assembly port is sealed from the inside with tape at its opening as a reserved sensor assembly port; then the outer shell is buckled on the top surface of the base from the top, and the interior of the outer shell forms a cavity structure with the base and the outer side of the lining, and the bottom end of the outer shell is embedded in the base slot to achieve the plug-in fixation of the outer shell and the base, and then the seam between the base and the outer shell is coated with sealant to achieve a sealing setting between the base and the outer shell, and the assembly of the solar heater is completed.

[0069] The beneficial effects of the present invention are:

[0070] 1) The present invention can arrange multiple heater units in an array, and a single heater unit can be quickly assembled with a circulation pipe through a joint structure. Multiple adjacent heater units are connected end to end through pipelines to form a series connection structure. The number of heater units in the heating system can be arbitrarily disassembled and adjusted according to the heating demand, thereby realizing dynamic adjustment of the system. The use of different numbers of heater units realizes energy-saving use of the solar heating system.

[0071] 2) The present invention designs a heater that uses solar energy as a heat source to exchange heat with water. Water can enter the outer shell through the top end, and discharge from the outer shell from the bottom end after filling the inner cavity of the outer shell. During this circulation process, water passes through the dispersion effect of the lining to form an umbrella-shaped water film flow channel that flows on the wall of the lining. There is a large heat exchange area between the water and the outer shell, so that the heat exchange between the outer shell and the water has a very high heat exchange efficiency.

[0072] 3) The present invention is arranged with respect to the structural form of the heater, and the outer shell of the heater is arranged as a cylindrical structure, and is arranged inside the outer shell in conjunction with a cylindrical base and an inner lining structure; the outer shape of the heater can absorb the radiation of solar light in a circumferential direction, and no matter what solar altitude the sun is at, or what incident angle the sunlight is at, the heater can absorb the radiated solar energy in a circumferential direction to the maximum extent, so that the heater is always in a state of high heat exchange efficiency; at the same time, the structure of the heater does not need to calculate the local geographical factors such as the noon solar altitude and the solar incident angle, so as to adjust the installation angle of the heater. The heater is arranged vertically and the installation process can be completed, which simplifies the installation process of the heater, and the heater has strong installation flexibility and high convenience.

[0073] 4) The present invention provides a coating structure for the shell of the heater, so that on the basis of the original larger heat exchange area of ​​the shell, the surface porosity of the shell and the heat absorption performance of the shell are further improved, thereby improving the radiation heat exchange efficiency of the shell.

Claims

1. A highly efficient and energy-saving series solar heating system, characterized in that: It comprises a water storage tank (1), a circulation pipe (2), a heater unit (3), a stop valve (4), and a circulation water pump (5); the water outlet end of the circulation pipe (2) is arranged at the bottom end of one side of the water storage tank (1) and is in communication with the side wall surface of the water storage tank (1); the water return end of the circulation pipe (2) is arranged at the middle end of one side of the water storage tank (1) and is in communication with the side wall surface of the water storage tank (1); there are a plurality of heater units (3), the plurality of heater units (3) are arranged in an array, two adjacent heater units (3) are arranged end to end through the circulation pipe (2), and the plurality of heater units (3) are arranged in series through the circulation pipe (2); the stop valve (4) is arranged at the water return end of the circulation pipe (2); the circulation water pump (5) is arranged at the water return end of the circulation pipe (2) and is arranged on one side of the stop valve (4); A single heater unit (3) comprises a base (3-1), a foot (3-2), an inner lining (3-3), an outer shell (3-4) and a temperature sensor (3-5); the interior of the base (3-1) is a hollow structure; the bottom end of the top surface of the base (3-1) is circumferentially grooved to form a base slot (3-1-1); one side of the bottom end of the top surface of the base (3-1) is notched, and a water outlet (3-1-2) is provided at the top and bottom of the base (3-1); the water outlet (3-1-2) penetrates the base (3-1) and extends into the interior of the base (3-1); the bottom end of the top surface of the base (3-1) is through-hole-shaped to form a sensor assembly port (3-1-3); the foot (3-2) is arranged on the inner bottom side of the base (3-1), and the foot (3-2) is fixed to the bottom surface of the base (3-1); the inner lining (3-3) is The interior is a hollow structure, the lining (3-3) is arranged at the top end of the base (3-1), the lining (3-3) and the base (3-1) are fixedly arranged, the top end of the lining (3-3) is in the shape of a through hole to form a water inlet (3-3-1), and the bottom end of the lining (3-3) is sealed with the top end of the base (3-1); the outer shell (3-4) is arranged on the outer side of the top surface of the base (3-1), and the outer shell (3-4) circumferentially wraps the lining (3-3), the bottom end of the outer shell (3-4) is circumferentially embedded in the base card slot (3-1-1) of the base (3-1), and the outer shell (3-4) and the base (3-1) are sealed by a sealant; the temperature sensor (3-5) is arranged on the outer wall surface of the base (3-1), and the temperature sensor (3-5) and the base (3-1) are obliquely fixed; The inner side wall of the top end surface of the base (3-1) is axially convex, forming a base plug-in ring (3-1-4); the bottom end outer diameter of the liner (3-3) is consistent with the top end outer diameter of the base (3-1); the inner side wall of the bottom end surface of the liner (3-3) is axially concave, forming a liner plug-in groove (3-3-2); the base plug-in ring (3-1-4) is embedded in the liner plug-in groove (3-3-2) to achieve plug-in fixation of the liner (3-3) and the base (3-1); and the liner (3-3) and the base (3-1) are sealed by circumferentially coating a sealant; The temperature sensor (3-5) is arranged in a single heater unit (3) at the end of the circulation pipe (2), and the temperature sensor (3-5) in the heater unit (3) is electrically connected to the controller (6) via a wire; the temperature sensor (3-5) is also arranged in the water storage tank (1), and the temperature sensor (3-5) in the water storage tank (1) is electrically connected to the controller (6) via a wire; each of the circulation water pumps (5) is electrically connected to the controller (6) via a wire.

2. A highly efficient and energy-saving series solar heating system according to claim 1, characterized in that: The number of the sensor assembly openings (3-1-3) is two, which are respectively arranged on both sides of the water outlet (3-1-2); each of the sensor assembly openings (3-1-3) is arranged to be connected with the corresponding foot (3-2); the bottom side wall surfaces of the two corresponding foots (3-2) are notched structures, forming a foot clamping groove (3-2-1).

3. A highly efficient and energy-saving series solar heating system according to claim 1, characterized in that: A water inlet pipe (3-3-3) is provided inside the inner lining (3-3); the water inlet pipe (3-3-3) and the water inlet (3-3-1) are arranged in a through-connected manner; water inlet pipe fixing plates (3-3-5) are provided on both sides of the water inlet pipe (3-3-3); the water inlet pipe (3-3-3) is fixed to the inner wall surface of the inner lining (3-3) via the water inlet pipe fixing plates (3-3-5) on both sides.

4. The high-efficiency and energy-saving series solar heating system according to claim 1 is characterized in that: A guide plate (3-3-4) is provided on the outside of the lining (3-3), wherein the guide plates (3-3-4) are four in number and are circumferentially arranged at the top of the outer wall surface of the lining (3-3), and the plurality of guide plates (3-3-4) are arranged in a "cross" shape, and each guide plate (3-3-4) is arranged longitudinally and vertically fixed to the outer wall surface of the lining (3-3), and the side edge of each guide plate (3-3-4) is curved.

5. A highly efficient and energy-saving series solar heating system according to claim 4, characterized in that: The outer wall surface of the shell (3-4) is coated with a coating, and the coating is a carbon nano coating.

6. The high-efficiency and energy-saving series solar heating system according to claim 1 is characterized in that: The number of the stop valves (4) is at least two, and each of the stop valves (4) is arranged in parallel on the pipeline of the circulation pipe (2).

7. The high-efficiency and energy-saving series solar heating system according to claim 1 is characterized in that: The number of the circulating water pumps (5) is at least two, and the circulating water pumps (5) are arranged in the water storage tank (1); each of the stop valves (4) is arranged in parallel on the pipeline of the circulating pipe (2) and is arranged at the inlet end corresponding to the circulating water pump (5).

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