Solar water heater with good heat preservation effect

Abstract

The utility model discloses a solar water heater with a good heat preservation effect, which comprises a rack, a water tank is welded at the top of the rack, and vacuum heat collecting pipes are uniformly fixed between the rack and the water tank. When the water tank is used, after the water temperature in the water tank rises, the water tank expands and generates steam, the air pressure in the water tank is increased, and the steam is exhausted upwards along the exhaust pipe and flows into a heat storage air cavity formed by the transverse heat storage pipe fitting and the arc-shaped connecting pipe fitting which are arranged in the heat storage heat preservation layer; original gas in the heat storage gas cavity can be downwards extruded out through the pressure release valve to complete cold and heat exchange, and therefore when the night comes, heat collected in the daytime and stored in the heat storage gas cavity formed by the transverse heat storage pipe fitting and the arc-shaped connecting pipe fitting can conduct heat supply and heat preservation on liquid in the water storage inner container. The service life of hot water in the water storage inner container is prolonged, the cooling speed of the water storage inner container is reduced, and the efficient waste heat insulation effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to solar water heater technical field, concretely is a solar water heater with good heat preservation effect. BACKGROUND

[0002] Solar water heater is a kind of equipment using solar energy to heat water, it reduces the dependence on traditional energy, reduces carbon emission by using solar energy, realizes the advantages of energy saving, environmental protection, economic and practical, however, there are still some defects in actual use.

[0003] The heat preservation effect of the water tank of solar water heater is not good enough, which leads to the problem that the hot water in the water tank will cool down too fast at night when the temperature drops or the next day when it is cloudy and rainy without the sun, and the steam generated by the expansion of the water temperature in the water tank during the day is directly discharged, which will cause heat waste, based on this, we propose a new solar water heater with good heat preservation effect. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a solar water heater with good heat preservation effect to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a solar water heater with good heat preservation effect, comprising a rack, a water tank is welded on the top of the rack, vacuum heat collecting pipes are evenly fixed between the rack and the water tank, a water inlet reserved port and a water outlet reserved port are respectively arranged at the top end and the bottom end of the water tank, electromagnetic valves are installed on the water inlet reserved port and the water outlet reserved port, an overflow pipe and an exhaust pipe are arranged in sequence at the top end inside the water tank, a fixed arm is installed on the top of the water tank by screws, a water guide plate is welded on the bottom of the fixed arm and communicates with the overflow pipe, spray heads are evenly screw-connected on the bottom of the water guide plate, a polyurethane heat insulation outer layer is arranged on the outer wall of the water tank, a heat storage and heat preservation layer is arranged in the inner wall of the water tank, transverse heat storage pipe fittings that communicate with the exhaust pipe are evenly fixed in the heat storage and heat preservation layer, arc-shaped connecting pipe fittings are evenly arranged between adjacent transverse heat storage pipe fittings, a pressure relief valve that communicates with the transverse heat storage pipe fittings is arranged on the outer wall of the water tank, a water storage inner container is welded in the heat storage and heat preservation layer, and a liquid level sensor is installed at the top end inside the water storage inner container.

[0006] Preferably, fixed legs are evenly screw-connected at the edges of the bottom of the rack.

[0007] Preferably, the vacuum heat collecting pipes are arranged at equal intervals on the rack, the vacuum heat collecting pipes communicate with the inside of the water tank, and a sealing ring that matches the water tank is arranged on the top of the vacuum heat collecting pipes, so that the sealing performance of the vacuum heat collecting pipes is improved.

[0008] Preferably, flanges are welded on the water inlet reservation port and the water outlet reservation port, so as to facilitate the connection of pipes.

[0009] Preferably, the transverse heat storage pipes are arranged at equal angles inside the heat storage insulation layer.

[0010] Preferably, the material of the water storage liner is stainless steel.

[0011] Preferably, a reflective plate matched with the vacuum heat collecting pipe is installed on the rack, and the material of the reflective plate is aluminum.

[0012] Preferably, the rack and the outer wall of the water tank are coated with a nano titanium dioxide self-cleaning layer, so as to improve the anti-fouling and self-cleaning effect of the outer wall of the rack and the water tank.

[0013] Compared with the prior art, the device has the following advantages:

[0014] (1) The solar water heater with good heat preservation effect is provided with a heat storage insulation layer, so that the structure of the device is optimized. When the water temperature in the water tank rises, the water expands and generates steam. At this time, the air pressure in the water tank increases, the steam flows upwards along the exhaust pipe, and flows into the heat storage cavity formed by the transverse heat storage pipes and the arc-shaped connecting pipes. The original gas in the heat storage cavity is pushed out downwards through the pressure relief valve, and the cold and hot replacement is completed. Therefore, when night comes, the heat collected during the day and stored in the heat storage cavity formed by the transverse heat storage pipes and the arc-shaped connecting pipes can supply heat to the liquid in the water storage liner, which is beneficial to prolong the service life of the hot water in the water storage liner and reduce the cooling speed. The polyurethane heat insulation layer arranged on the outer wall of the water tank can optimize the heat preservation and insulation effect of the outer wall of the water tank, reduce the cooling of the heat exchange between the hot water and the external environment when the temperature decreases at night, and further enable the device to store the excess heat during the day, so as to heat and preserve the heat at night when the temperature decreases, so that the device realizes high-efficiency heat preservation effect.

[0015] (2), the good heat preservation effect solar water heater through the installation of electromagnetic valve etc., make the device optimization of its own performance, on the one hand, the electromagnetic valve on the water inlet reserved opening, external water will be filled into the inside of the water storage liner, liquid level sensor will real time monitoring of the water storage liner inside liquid level situation, this is convenient to control the water state, when complete once the water, the electromagnetic valve on the water inlet reserved closing, water body wait for solar heating, subsequent need to use water, the electromagnetic valve on the water outlet reserved opening, this makes the device realize the advantages of controllable water, reduce the waste situation caused by excessive water, on the other hand, by installing the water guide plate with spray head on the top of the water tank, the user can regularly close the liquid level sensor, through the excessive water, so that the water through the overflow pipe into the water guide plate inside which is connected, and then through the corresponding distribution on the vacuum heat pipe above the spray head to the outside, this can realize the automatic water cleaning treatment for vacuum heat pipe, avoid vacuum heat pipe attached dust and cause the utilization efficiency of solar energy reduces, this enhances the functionality of the device. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front view structure schematic diagram of the utility model;

[0017] Figure 2 It is a side view structure schematic diagram of the utility model;

[0018] Figure 3 It is a front view local section structure schematic diagram of the utility model water storage liner;

[0019] Figure 4 It is a rear view section structure schematic diagram of the utility model heat storage insulation layer;

[0020] Figure 5 It is a rear view section structure schematic diagram of the utility model heat storage insulation layer; Figure 1 It is a rear view section structure schematic diagram of the utility model heat storage insulation layer;

[0021] In the drawing: 1, fixed arm; 2, water guide plate; 3, spray head; 4, water outlet reserved mouth; 5, rack; 6, vacuum heat pipe; 7, water tank; 8, exhaust pipe; 9, pressure relief valve; 10, reflector; 11, fixed foot; 12, water storage liner; 13, liquid level sensor; 14, heat storage insulation layer; 15, polyurethane insulation outer layer; 16, transverse heat storage pipe; 17, arc connecting pipe; 18, water inlet reserved mouth; 19, electromagnetic valve; 20, overflow pipe; 21, nanometer titanium dioxide self-cleaning layer. DETAILED DESCRIPTION

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] Please see Figures 1-5 One embodiment of this utility model is a solar water heater with good heat preservation effect, including a frame 5, a water tank 7 welded to the top of the frame 5, and vacuum heat collection tubes 6 evenly fixed between the frame 5 and the water tank 7.

[0024] The top and bottom of the water tank 7 are respectively provided with a water inlet 18 and a water outlet 4, and a solenoid valve 19 is installed on both the water inlet 18 and the water outlet 4.

[0025] An overflow pipe 20 and an exhaust pipe 8 are sequentially installed at the top of the interior of the water tank 7.

[0026] A fixing arm 1 is installed on the top of the water tank 7 by screws. A water guide plate 2 connected to the overflow pipe 20 is welded to the bottom of the fixing arm 1. A spray head 3 is evenly threaded to the bottom of the water guide plate 2.

[0027] The outer wall of the water tank 7 is provided with a polyurethane heat insulation outer layer 15, and the inner wall of the water tank 7 is provided with a heat storage and heat preservation layer 14. The inner wall of the heat storage and heat preservation layer 14 is uniformly fixed with transverse heat storage pipes 16 connected to the exhaust pipe 8. Arc-shaped connecting pipes 17 are uniformly arranged between adjacent transverse heat storage pipes 16. The outer wall of the water tank 7 is provided with a pressure relief valve 9 connected to the transverse heat storage pipes 16.

[0028] The heat storage and insulation layer 14 has a water storage tank 12 welded inside;

[0029] When in use, the water temperature inside the water tank 7 rises, causing it to expand and generate steam. This increases the internal pressure of the water tank 7, causing the steam to rise and exit through the exhaust pipe 8. The steam then flows into the heat storage chamber formed by the horizontal heat storage pipes 16 and the arc-shaped connecting pipes 17 arranged inside the heat storage insulation layer 14. Meanwhile, the existing gas inside this heat storage chamber is forced downwards through the pressure relief valve 9, completing the heat exchange process. Therefore, when night falls, the steam collected during the day and stored in the heat storage chamber formed by the horizontal heat storage pipes 16 and the arc-shaped connecting pipes 17 is released into the heat storage chamber. The heat from the storage tank 12 will heat and keep the liquid inside, which will help extend the service life of the hot water inside the storage tank 12 and reduce its cooling rate. The polyurethane insulation outer layer 15 on the outer wall of the water tank 7 will optimize the heat insulation effect of the outer wall of the water tank 7 and reduce the cooling of the hot water and the external environment when the temperature drops at night. This allows the device to store the excess heat during the day so that it can keep warm and heat the water when the temperature drops at night, thus achieving a highly efficient heat preservation effect.

[0030] A liquid level sensor 13 is installed at the top of the inside of the water storage tank 12;

[0031] When in use, the solenoid valve 19 on the water inlet 18 is opened, and external tap water is filled into the water storage tank 12. The liquid level sensor 13 monitors the liquid level inside the water storage tank 12 in real time, which facilitates the control of the water filling status. After one water filling is completed, the solenoid valve 19 on the water inlet 18 is closed, and the water waits for solar heating. When water is needed later, the solenoid valve 19 on the water outlet 4 is opened. This makes the device achieve the advantage of controllable water filling and reduces the waste caused by excessive water filling. In addition, by adding a water guide plate 2 with spray heads 3 on the top of the water tank 7, the user can periodically close the liquid level sensor 13. By filling too much water, the water enters the water guide plate 2 connected to it through the overflow pipe 20, and then sprays it out through the spray heads 3 distributed above the vacuum collector tube 6. This can realize the automatic water washing and cleaning of the vacuum collector tube 6, and avoid the vacuum collector tube 6 from being covered with dust and debris, which would reduce the utilization efficiency of solar energy.

[0032] The bottom edge of the frame 5 is uniformly threaded with fixed support feet 11;

[0033] The vacuum collector tubes 6 are arranged at equal intervals on the frame 5. The vacuum collector tubes 6 are connected to the inside of the water tank 7. The top of the vacuum collector tubes 6 is equipped with a sealing ring that matches the water tank 7, which improves the sealing performance of the vacuum collector tubes 6.

[0034] Flanges are welded to both the inlet port 18 and the outlet port 4 to facilitate the connection of external pipes to the inlet port 18 and the outlet port 4.

[0035] The transverse heat storage pipes 16 are arranged at equal angles inside the heat storage and insulation layer 14;

[0036] The inner water tank 12 is made of stainless steel;

[0037] A reflector 10, which matches the vacuum heat collection tube 6, is installed on the frame 5. The reflector 10 is made of aluminum.

[0038] The outer walls of the frame 5 and the water tank 7 are coated with a nano titanium dioxide self-cleaning layer 21, which improves the anti-fouling and self-cleaning effect of the outer walls of the frame 5 and the water tank 7.

[0039] In this embodiment, during use: the solenoid valve 19 on the water inlet 18 opens, allowing tap water to fill the water storage tank 12. The level sensor 13 monitors the liquid level inside the water storage tank 12 in real time, facilitating water filling control. After one filling cycle, the solenoid valve 19 on the water inlet 18 closes, and the water awaits solar heating. When water is needed later, the solenoid valve 19 on the water outlet 4 opens. This allows the device to achieve controllable water filling and reduces the risk of overfilling. This avoids waste. Furthermore, by installing a water guide plate 2 with spray nozzles 3 on top of the water tank 7, the user can periodically turn off the liquid level sensor 13, allowing excess water to be added. The water then flows through the overflow pipe 20 into the water guide plate 2, and is sprayed outwards through the spray nozzles 3 positioned above the vacuum collector tubes 6. This achieves automated water washing and cleaning of the vacuum collector tubes 6, preventing dust accumulation and reduced solar energy utilization efficiency. Simultaneously, during the day, due to solar energy... When the water temperature inside water tank 7 rises, it expands and generates steam. At this time, the air pressure inside water tank 7 increases, and the steam will rise and be discharged through exhaust pipe 8, flowing into the heat storage chamber formed by the horizontal heat storage pipes 16 and the arc-shaped connecting pipes 17 arranged inside the heat storage insulation layer 14. Meanwhile, the original gas inside the heat storage chamber will be squeezed out through the pressure relief valve 9, completing the heat exchange. Therefore, when night falls, the heat collected during the day and stored inside the heat storage chamber formed by the horizontal heat storage pipes 16 and the arc-shaped connecting pipes 17 will be released. The heat generated will heat and insulate the liquid inside the water storage tank 12, which helps to extend the service life of the hot water inside the water storage tank 12 and reduce its cooling rate. The polyurethane heat insulation outer layer 15 set on the outer wall of the water tank 7 will optimize the heat insulation effect of the outer wall of the water tank 7 and reduce the cooling of the hot water and the external environment when the temperature drops at night. In this way, the device can use the excess heat during the day to store and heat it when the temperature drops at night, thus achieving a highly efficient heat preservation effect.

Claims

1. A solar water heater with good heat preservation effect, characterized in that, The system includes a frame (5), a water tank (7) welded to the top of the frame (5), and vacuum heat collection tubes (6) evenly fixed between the frame (5) and the water tank (7). The top and bottom of the water tank (7) are respectively provided with a water inlet (18) and a water outlet (4). Solenoid valves (19) are installed on both the water inlet (18) and the water outlet (4). An overflow pipe (20) and an exhaust pipe (8) are sequentially arranged at the top of the inside of the water tank (7). A fixing arm (1) is installed on the top of the water tank (7) by screws. A water guide plate (2) connected to the overflow pipe (20) is welded to the bottom of the fixing arm (1). The bottom of the water guide plate (2) is... A spray head (3) is connected by a uniform thread. A polyurethane heat insulation outer layer (15) is provided on the outer wall of the water tank (7). A heat storage and heat preservation layer (14) is provided inside the side wall of the water tank (7). A transverse heat storage pipe (16) connected to the exhaust pipe (8) is uniformly fixed inside the heat storage and heat preservation layer (14). An arc-shaped connecting pipe (17) is uniformly provided between adjacent transverse heat storage pipes (16). A pressure relief valve (9) connected to the transverse heat storage pipe (16) is provided on the outer wall of the water tank (7). A water storage tank (12) is welded inside the heat storage and heat preservation layer (14). A liquid level sensor (13) is installed at the top of the inside of the water storage tank (12).

2. A solar water heater with good heat preservation effect according to claim 1, characterized in that: The bottom edge of the frame (5) is uniformly threaded with fixed feet (11).

3. A solar water heater with good heat preservation effect according to claim 1, characterized in that: The vacuum heat collection tubes (6) are arranged at equal intervals on the frame (5). The vacuum heat collection tubes (6) are connected to the interior of the water tank (7). The top of the vacuum heat collection tubes (6) is provided with a sealing ring that matches the water tank (7).

4. A solar water heater with good heat preservation effect according to claim 1, characterized in that: Flanges are welded to both the water inlet (18) and the water outlet (4).

5. A solar water heater with good heat preservation effect according to claim 1, characterized in that: The transverse heat storage pipes (16) are arranged at equal angles inside the heat storage insulation layer (14).

6. A solar water heater with good heat preservation effect according to claim 1, characterized in that: The water storage tank (12) is made of stainless steel.

7. A solar water heater with good heat preservation effect according to claim 1, characterized in that: The frame (5) is equipped with a reflector (10) that matches the vacuum heat collection tube (6), and the reflector (10) is made of aluminum.

8. A solar water heater with good heat preservation effect according to claim 1, characterized in that: The outer walls of the frame (5) and the water tank (7) are coated with a nano-titanium dioxide self-cleaning layer (21).

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