Solar thermal water heater

Abstract

The present invention discloses a solar thermal storage water heater, belonging to the field of solar water heaters, comprising a heat storage tank and a water pipe; the heat storage tank comprises an oil storage chamber, a ternary carbonate storage chamber, a solar heating pipe and a plurality of superconducting liquid pipes; the oil storage chamber is filled with oil and a liquid level adjustment mechanism for controlling the liquid level height of the oil; the ternary carbonate storage chamber is filled with ternary carbonate; the oil storage chamber and the ternary carbonate storage chamber are separated by a partition; the superconducting liquid pipe is filled with superconducting liquid, one end of the superconducting liquid pipe extends into the oil storage chamber, and the other end extends into the ternary carbonate storage chamber; the solar heating pipe is arranged in the ternary carbonate storage chamber for connecting a solar panel; the water pipe runs through the oil storage chamber, the water inlet end of the water pipe is connected to municipal water, and the water outlet end is connected to a faucet. The present invention stores heat through ternary carbonate and oil, the maximum temperature of the two is high, the high temperature can be maintained for a longer time, and the utilization rate of solar energy is high.

Description

Technical Field

[0001] The invention belongs to the field of solar water heaters, in particular to a solar thermal storage water heater. Background Art

[0002] A solar water heater is a device that uses sunlight to heat water. It is divided into vacuum tube solar water heaters and flat plate solar water heaters.

[0003] Vacuum tube solar water heaters, such as the straight-through all-glass vacuum tube solar water heater disclosed in Chinese utility model patent application number 200620158730.5, are composed of a straight-through all-glass vacuum tube with double-ended openings and a lower header. The inner glass tube of the straight-through all-glass vacuum tube has a spiral interface tube, the lower end of which is expanded and fused with the outer glass tube to form a lower end opening, or the main body of the inner glass tube has a corrugated body distributed in a continuous manner, or in a discontinuous group of corrugated bodies.

[0004] Flat-plate solar water heaters, such as the solar water heater with a solar photovoltaic power generation system disclosed in the Chinese invention patent application with application number 201110074786.8, belong to the technical field of solar water heaters. The solar photovoltaic panel is fixed on the solar water heater, converts light energy into 12V current, and then converts it into 220V current through wires connected to the intelligent controller and inverter to realize the function of household hot water supply.

[0005] Whether it is a vacuum tube solar water heater or a flat plate solar water heater, water is heated directly. However, the maximum water temperature in the water heater tank can only reach 100°C. Although the water tanks are equipped with insulation function, once there is long-term rainy weather, especially in winter, the temperature of the hot water in the water tank drops rapidly and cannot be continuously heated, and it may still not be able to meet the supply requirements. Once the temperature in the water tank is too low, municipal electricity is needed to heat the water in the water tank, resulting in more electricity consumption. In addition, the water storage capacity of the water tank is limited. When a large amount of hot water is needed in a short period of time, the hot water in the water tank is added to the supplementary cold water, resulting in a lower water temperature in the subsequent output, resulting in insufficient hot water supply. Summary of the invention

[0006] The object of the present invention is to provide a solar thermal storage water heater to solve the problems of poor thermal insulation effect and insufficient hot water supply of existing solar water heaters.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] The present invention relates to a solar thermal storage water heater, which comprises a thermal storage tank and a water pipe; the thermal storage tank comprises an oil storage chamber, a ternary carbonate storage chamber, a solar heating tube and a plurality of superconducting liquid tubes; the oil storage chamber is filled with oil and a liquid level adjustment mechanism for controlling the liquid level height of the oil; the ternary carbonate storage chamber is filled with ternary carbonate; the oil storage chamber and the ternary carbonate storage chamber are separated by a partition; the superconducting liquid tube is filled with superconducting liquid, one end of the superconducting liquid tube extends into the oil storage chamber, and the other end extends into the ternary carbonate storage chamber; the solar heating tube is arranged in the ternary carbonate storage chamber for connecting a solar panel; the water pipe runs through the oil storage chamber, the water inlet end of the water pipe is connected to municipal water, and the water outlet end is connected to a faucet.

[0009] Preferably, the liquid level adjustment mechanism includes an oil storage pipe, a piston and a piston rod. The bottom of the oil storage pipe is provided with an opening, the bottom of the oil storage pipe extends to the bottom of the oil storage cavity, the piston is slidably connected to the oil storage pipe, and the outer ring of the piston is in close contact with the inner wall of the oil storage pipe, the bottom of the piston rod is connected to the piston, and the top of the piston rod penetrates the top plate of the oil storage pipe. When in use, the piston is pressed with the piston rod, so that the oil in the oil storage pipe flows into the oil storage cavity, the liquid level of the oil in the oil storage cavity rises, and it covers the water pipe, and the high-temperature oil is used to heat the water in the water pipe.

[0010] Preferably, the upper surface of the piston is connected to the bottom of the piston rod through a ball shaft, so that the piston rod and the piston can rotate relative to each other, and the piston does not need to rotate when pressing down and lifting the piston.

[0011] Preferably, the outer ring of the piston rod is provided with a thread, and the piston tube is threadedly connected to the top plate of the oil storage tube. After the piston is pressed down, there is a height difference between the oil in the oil storage chamber and the oil in the oil storage tube. The oil in the oil storage tube will provide an upward pressure on the piston. The piston tube is threadedly connected to the top plate of the oil storage tube to prevent the piston from moving upward.

[0012] Preferably, a rotating handle is provided on the top of the piston rod.

[0013] Preferably, an electric heating pipe is also provided in the ternary carbonate storage chamber. In long-term rainy weather, the ternary carbonate can also be heated by the electric heating pipe. When electrically heated, it is preferably heated during the off-peak period. The ternary carbonate stores the heat generated by the electric heating and heats the water in the water pipe during the peak period.

[0014] Preferably, the portion of the water pipe located in the oil storage chamber is arranged in a spiral shape, which increases the contact area between the water pipe and the oil in the oil storage chamber, thereby enabling the water in the water pipe to heat up rapidly.

[0015] Preferably, a sealing ring is provided at the position of the water pipe passing through the heat storage box to prevent oil leakage from occurring at the connection position between the heat storage box and the water pipe.

[0016] Preferably, a functional module is provided between the water pipe and the faucet, and the functional module includes a connecting pipe, a generator set, a power module, a control chip, a temperature sensor and a display screen; one end of the connecting pipe is connected to the water pipe, and the other end of the connecting pipe is connected to the faucet; the generator set generates electricity through the water flow in the connecting pipe; the input end of the power module is connected to the generator set, and the control chip, the temperature sensor and the display screen are all connected to the output end of the power module; the temperature sensor extends into the water pipe, and the display screen and the temperature sensor are both connected to the control chip for communication. The generator set generates electricity through water flow and provides electrical energy to the control chip, the temperature sensor and the display screen, so that the temperature of the hot water can be clearly known, and the user can be assisted in adjusting the water temperature.

[0017] Preferably, the ternary carbonate storage chamber is located below the oil storage chamber.

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

[0019] 1. The solar thermal storage water heater involved in the present invention comprises a heat storage tank and a water pipe, wherein the heat storage tank comprises an oil storage chamber and a ternary carbonate storage chamber, wherein a solar heating tube for connecting a solar panel is arranged in the ternary carbonate storage chamber, and on sunny days, the ternary carbonate in the ternary carbonate storage chamber is heated by the solar heating tube, and the heat is stored in the ternary carbonate storage chamber, and then the heat in the ternary carbonate is transferred to the oil in the oil storage chamber through a superconducting liquid tube filled with superconducting liquid, and the liquid level of the high-temperature oil is adjusted by a liquid level adjustment mechanism, thereby heating the water in the water pipe. The present invention stores heat in the ternary carbonate, and the temperature of the ternary carbonate can reach more than 600 degrees after being heated, and can maintain a high temperature for a longer period of time.

[0020] 2. The solar thermal storage water heater involved in the present invention heats the cold water in the water pipe only when it is in use. The cold water in the water pipe and the high-temperature oil used for heating are separated, which is more conducive to maintaining the temperature.

[0021] 3. The solar thermal storage water heater of the present invention is provided with a functional module between the water pipe and the faucet, and the functional module includes a connecting pipe, a generator set, a power module, a control chip, a temperature sensor and a display screen; one end of the connecting pipe is connected to the water pipe, and the other end of the connecting pipe is connected to the faucet; the generator set generates electricity through the water flow in the connecting pipe; the input end of the power module is connected to the generator set, and the control chip, the temperature sensor and the display screen are all connected to the output end of the power module; the temperature sensor extends into the water pipe, and the display screen and the temperature sensor are both connected to the control chip for communication. The generator set generates electricity through the water flow and provides electrical energy to the control chip, the temperature sensor and the display screen, so that the temperature of the hot water can be clearly known, and the user can be assisted in adjusting the water temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three-dimensional diagram of a solar thermal storage water heater according to Embodiment 1 of the present invention;

[0023] Figure 2 is a top view of the solar thermal storage water heater involved in Example 1 of the present invention;

[0024] Figure 3 Yes Figure 2 AA cross-sectional view of the solar thermal storage water heater shown;

[0025] Figure 4 Yes Figure 2 BB cross-sectional view of the solar thermal storage water heater shown;

[0026] Figure 5 is a cross-sectional view of the solar thermal storage water heater involved in Example 2;

[0027] Figure 6 It is a structural diagram of the functional modules in Example 2.

[0028] Figure numerals: 1-heat storage tank, 11-oil storage chamber, 12-ternary carbonate storage chamber, 13-solar heating tube, 14-superconducting liquid tube, 15-electric heating tube, 16-liquid level adjustment mechanism, 161-oil storage tube, 162-piston, 163-piston rod, 164-ball shaft, 165-rotating handle, 2-water pipe, 21-sealing ring, 3-functional module, 31-connecting pipe, 32-generator set, 33-power module, 34-control chip, 35-temperature sensor, 36-display screen, 4-faucet. DETAILED DESCRIPTION

[0029] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. 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.

[0030] Example 1

[0031] Refer to the attached Figure 1 and 2 As shown in FIG. 1 , a solar thermal storage water heater according to the present invention comprises a thermal storage tank 1 and a water pipe 2. Figure 3As shown, the outer side of the heat storage box 1 is wrapped with an asbestos insulation layer and an expanded perlite insulation layer to prevent the temperature inside the heat storage box 1 from being transferred outward. The heat storage box 1 includes an oil storage chamber 11, a ternary carbonate storage chamber 12, a solar heating tube 13 and a plurality of superconducting liquid tubes 14. The ternary carbonate storage chamber 12 is located below the oil storage chamber 11. The oil storage chamber 11 is filled with oil and a liquid level adjustment mechanism 16 for controlling the liquid level of the oil. A vacuum ceramic ball is provided in the oil. The vacuum ceramic ball floats on the surface of the oil. When the water in the water pipe is not heated by high-temperature oil, the liquid level adjustment mechanism 16 controls the liquid level of the oil below the water pipe. The vacuum ceramic ball is used to isolate the temperature of the oil from being transferred upward. The ternary carbonate storage chamber is filled with ternary carbonate; the oil storage chamber 11 and the ternary carbonate storage chamber 12 are separated by a partition; the superconducting liquid tube 14 is a hollow sealed tube. The superconducting liquid tube 14 is filled with superconducting liquid. One end of the superconducting liquid tube extends into the oil storage chamber 11, and the other end extends into the ternary carbonate storage chamber 12. The solar heating tube 13 is arranged in the ternary carbonate storage chamber and is used to connect to the solar panel. The solar panel receives the electrical energy converted from the sunlight to heat the ternary carbonate in the ternary carbonate storage chamber. In order to ensure that the water heater can still be used in long-term rainy weather, the present embodiment also provides an electric heating tube 15 in the ternary carbonate storage chamber. The electric heating tube 15 is used to connect to the municipal electricity and heat the ternary carbonate.

[0032] Refer to the attached Figure 3 As shown, the water pipe 2 passes through the oil storage chamber 11, the water inlet end of the water pipe 11 is connected to the municipal water, and the water outlet end is connected to the faucet 4. The part of the water pipe 2 located in the oil storage chamber 11 is arranged in a spiral shape, which increases the contact area between the water pipe 2 and the oil in the oil storage chamber 11, thereby enabling the water in the water pipe 2 to heat up rapidly. A sealing ring 21 is provided at the position where the water pipe 2 passes through the heat storage box 1, and the sealing ring 21 is used to prevent the heat storage box 1 from leaking oil at the position where it connects with the water pipe 2.

[0033] Refer to the attached Figure 4As shown, the liquid level adjustment mechanism 16 includes an oil storage pipe 161, a piston 162 and a piston rod 163. The bottom of the oil storage pipe 161 is provided with an opening, and the bottom of the oil storage pipe 161 extends to the bottom of the oil storage chamber 11, but does not contact the partition. The piston 162 is slidably connected to the oil storage pipe 161, and the outer ring of the piston 162 is in close contact with the inner wall of the oil storage pipe 161. The bottom of the piston rod 163 is connected to the piston 162, and the top of the piston rod 163 passes through the top plate of the oil storage pipe 161. After the piston 162 is pressed down, there is a height difference between the oil in the oil storage chamber 11 and the oil in the oil storage tube 161. The oil in the oil storage tube 161 will provide an upward pressure on the piston 162. In order to prevent the piston 162 from moving upward autonomously, the outer ring of the piston rod 163 is provided with a thread, and the piston rod 163 is threadedly connected to the top plate of the oil storage tube 161. The piston 162 is driven to slide up and down by rotating the piston rod 163 clockwise or counterclockwise. When the piston rod 163 is not screwed, the position of the piston rod 163 and the piston 162 is locked by the thread; in addition, in order to prevent the piston 162 from rotating when the piston rod 163 is screwed, the upper surface of the piston 162 is connected to the bottom of the piston rod 163 through the ball shaft 164; in order to facilitate the operation of rotating the piston rod 163, a rotating handle 165 is provided on the top of the piston rod 163.

[0034] The working principle of the solar thermal storage water heater is as follows: when there is sufficient sunlight, the solar panel is connected to receive solar energy to generate electricity, and the electricity acts on the solar heating tube 13. After the solar heating tube 13 is energized, the ternary carbonate in the ternary carbonate storage chamber 12 is heated, and the temperature of the ternary carbonate can reach 600°C; the heated ternary carbonate further transfers the heat to the oil in the oil storage chamber 11 through the superconducting liquid in the superconducting liquid tube 14, thereby heating the oil, and the oil temperature can reach 250-300°C, and the ternary carbonate and the oil preserve the heat. When hot water is not used, the piston rod 163 locks the piston 162 at a higher position of the oil storage pipe 161. Since the bottom of the oil storage pipe 161 is connected to the oil storage chamber 11, the oil levels in the oil storage pipe 161 and the oil storage chamber 11 are the same. At this time, the oil level in the oil storage chamber 11 is below the water pipe 2. When hot water is needed, the piston 162 is moved downward by screwing the piston rod 163, thereby forcing part of the oil in the oil storage pipe 161 to flow into the oil storage chamber 11. The oil level in the oil storage chamber 11 rises and does not cover the water pipe 2. At this time, the high-temperature oil exchanges heat with the cold water in the water pipe 2, thereby heating the cold water. The hot water can be released by turning on the tap 4. After the hot water is used, the piston rod 163 is screwed in the opposite direction to move the piston 162 upward. Part of the oil in the oil storage chamber 11 flows back into the oil storage pipe 161. The oil level in the oil storage chamber 11 drops and exposes the water pipe 2. The high-temperature oil does not heat the water in the water pipe 2.

[0035] Example 2

[0036] Refer to the attached Figure 5 and 6 As shown, on the basis of the embodiment 1, the present embodiment further provides a function module 3 between the water pipe 2 and the faucet 4, and the function module 3 includes a connecting pipe 31, a generator set 32, a power module 33, a control chip 34, a temperature sensor 35 and a display screen 36. One end of the connecting pipe 31 is connected to the water pipe 2, and the other end of the connecting pipe 31 is connected to the faucet 4; the generator set 32 ​​adopts a pressure generator set or a rotary generator, and the motor set 32 ​​extends to the inside of the connecting pipe 31 to generate electricity through the water flow in the connecting pipe 31; the input end of the power module 33 is connected to the generator set 32, and the control chip 34, the temperature sensor 35 and the display screen 36 are all connected to the output end of the power module 33; the temperature sensor 35 extends into the water pipe to detect the water temperature at the outlet of the water pipe 2, and the display screen 36 and the temperature sensor 35 are both connected to the control chip 34 for communication.

[0037] When the faucet 4 is turned on, water flows through the connecting pipe 31, driving the generator set 32 ​​to generate electricity. The electric energy generated by the generator set 32 ​​is transmitted to the control chip 34, the temperature sensor 35 and the display screen 36 through the power module 33. The temperature sensor 35 detects the water temperature at the water outlet and transmits the information to the control chip 34. The control chip 34 converts the signal into a digital signal and sends it to the display screen 36. The display screen 36 displays the water temperature in real time. The user can clearly know the temperature of the hot water, which helps the user adjust the water temperature.

[0038] It should be noted that a wind power generation device may be added to the above two embodiments, that is, a wind power generation heating pipe is added in the ternary carbonate storage chamber for connecting the wind power generation device.

[0039] In addition, the liquid level adjustment mechanism 16 can also be arranged outside the oil storage chamber 11, the volume of the oil storage pipe 161 can be large enough, and the oil storage pipe 161 is connected to the oil storage chamber 11 through an oil pipe. The liquid level height of the oil storage pipe 161 when it is full of oil is lower than the bottom height of the oil storage chamber 11, so that all the oil in the oil storage chamber 11 can be transferred to the oil storage pipe 161, thereby avoiding the superconducting liquid pipe 14 heating the oil and causing aging of the oil when not in use.

[0040] The present invention is described in detail above in conjunction with the embodiments, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of application of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A solar thermal storage water heater, characterized in that: It includes a heat storage tank and a water pipe; the heat storage tank includes an oil storage chamber, a ternary carbonate storage chamber, a solar heating tube and a plurality of superconducting liquid tubes; the oil storage chamber is filled with oil and a liquid level adjustment mechanism for controlling the liquid level of the oil; the ternary carbonate storage chamber is filled with ternary carbonate; the oil storage chamber and the ternary carbonate storage chamber are separated by a partition; the superconducting liquid tube is filled with superconducting liquid, one end of the superconducting liquid tube extends into the oil storage chamber, and the other end extends into the ternary carbonate storage chamber; the The solar heating tube is arranged in the ternary carbonate storage cavity for connecting the solar panel; the water pipe runs through the oil storage cavity, the water inlet end of the water pipe is connected to the municipal water, and the water outlet end is connected to the faucet; the liquid level adjustment mechanism includes an oil storage pipe, a piston and a piston rod; an opening is provided at the bottom of the oil storage pipe, the bottom of the oil storage pipe extends to the bottom of the oil storage cavity, the piston is slidably connected to the oil storage pipe, and the outer ring of the piston is in close contact with the inner wall of the oil storage pipe, the bottom of the piston rod is connected to the piston, and the top of the piston rod runs through the top plate of the oil storage pipe.

2. The solar thermal water heater according to claim 1, characterized in that: The upper surface of the piston is connected to the bottom of the piston rod through a ball shaft.

3. The solar thermal storage water heater according to claim 2, characterized in that: The outer ring of the piston rod is provided with threads, and the piston tube is threadedly connected with the top plate of the oil storage tube.

4. The solar thermal storage water heater according to claim 2, characterized in that: The top of the piston rod is provided with a rotating handle.

5. The solar thermal storage water heater according to claim 1, characterized in that: An electric heating tube is also arranged in the ternary carbonate storage chamber.

6. The solar thermal storage water heater according to claim 1, characterized in that: The part of the water pipe located in the oil storage cavity is arranged in a spiral shape.

7. The solar thermal storage water heater according to claim 1, characterized in that: A sealing ring is provided at the position of the water pipe that passes through the heat storage box.

8. The solar thermal storage water heater according to claim 1, characterized in that: A functional module is provided between the water pipe and the faucet, and the functional module includes a connecting pipe, a generator set, a power module, a control chip, a temperature sensor and a display screen; one end of the connecting pipe is connected to the water pipe, and the other end of the connecting pipe is connected to the faucet; the generator set generates electricity through the water flow in the connecting pipe; the input end of the power module is connected to the generator set, and the control chip, the temperature sensor and the display screen are all connected to the output end of the power module; the temperature sensor extends into the water pipe, and the display screen and the temperature sensor are both communicatively connected to the control chip.

9. The solar thermal storage water heater according to claim 1, characterized in that: The ternary carbonate storage chamber is located below the oil storage chamber.

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