A solar water heater with high efficiency heat exchange

Abstract

The utility model discloses a solar water heater with high efficiency heat exchange, including a flat plate collector, two ends of the flat plate collector are respectively fixedly connected to an adjustment frame, two ends of one side of the adjustment frame opposite to each other are respectively fixedly connected to a connecting shaft, the connecting shaft is rotatably connected to the top of the support frame, one side of the bottom of the support frame is fixedly connected to one end of an adjustment component, the other end of the adjustment component is fixedly connected to the adjustment frame, one end of the flat plate collector is fixedly connected to a water outlet pipe, and the water outlet pipe is fixedly connected to a Tesla valve; one side of the adjustment frame opposite to each other is respectively concavely provided with a slide groove, a reciprocating screw is rotatably installed in the slide groove, one end of the reciprocating screw is fixedly connected to the output shaft of a servo motor, and the servo motor is fixedly installed at the end of one side of the adjustment frame away from the connecting shaft. The setting of the Tesla valve inputs the heat medium collected by the flat plate collector into the jacketed heat exchanger of the water storage barrel in a unidirectional manner, without reverse reflux phenomenon, and the higher the temperature, the better the unidirectional flow, and the heat exchange efficiency is much higher than that of simple natural circulation.

Description

Technical Field

[0001] The utility model relates to the technical field of solar water heaters, in particular to a solar water heater with high efficiency in heat exchange. Background Art

[0002] A solar water heater is a heating device that converts sunlight into heat energy, heating water from low temperature to high temperature to meet people's needs for hot water in life and production. Solar water heaters are divided into vacuum tube solar water heaters and flat plate solar water heaters according to their structural form. Vacuum tube household solar water heaters are composed of heat collecting tubes, water storage tanks, brackets and other related parts and components. The conversion of solar energy into heat energy mainly relies on vacuum heat collecting tubes. Vacuum heat collecting tubes use the principle that hot water floats and cold water sinks to produce microcirculation of water to obtain the required hot water. For example, a Chinese patent with publication number CN104034053B discloses a solar water heater, including a water tank and a collector. The collector includes a plurality of closed lower ends. The vacuum glass heat collecting tubes, brackets for fixing the vacuum glass heat collecting tubes, a water inlet pipe connected to low-temperature water, and a water outlet pipe connected to a heat-insulating water tank, wherein the vacuum glass heat collecting tubes are in parallel structure, each vacuum glass heat collecting tube is connected to the water inlet pipe through a water tank, and each vacuum glass heat collecting tube is connected to the water outlet pipe through a connecting pipe; the water tank is connected to the collector through an external pipe and an internal pipe, the external pipe is connected to the tap water inlet near the collector side, and the water tank is connected to the heater through an external heating pipe and an internal heating pipe.

[0003] The current solar water heaters have a relatively simple structure, but most of them are fixedly installed. The heat collecting tubes cannot receive sunlight to the maximum extent, which reduces the utilization rate of sunlight. At the same time, they are more complicated to clean. Therefore, we propose a solar water heater with high efficiency heat exchange to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a solar water heater with high efficiency in heat exchange, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a solar water heater with high efficiency heat exchange, comprising a flat plate collector, both ends of the flat plate collector are respectively fixedly connected to an adjustment frame, both ends of one side of the adjustment frame opposite to each other are respectively fixedly connected to a connecting shaft, the connecting shaft is rotatably connected to the top of the support frame, one side of the bottom of the support frame is fixedly connected to one end of an adjustment component, the other end of the adjustment component is fixedly connected to the adjustment frame, one end of the flat plate collector is fixedly connected to a water outlet pipe, and the water outlet pipe is fixedly connected to a Tesla valve;

[0006] The adjusting frame has two concave grooves on the opposite sides thereof, and a reciprocating screw is rotatably installed in the groove. One end of the reciprocating screw is fixedly connected to the output shaft of the servo motor. The servo motor is fixedly installed at the end of the adjusting frame away from the connecting shaft. The reciprocating screw is connected to the two sides of the movable bar through a threaded structure, and the two ends of the movable bar are slidably arranged in the groove.

[0007] Preferably, one end of the movable strip is fixedly connected to a cleaning cotton strip, and the cleaning cotton strip slides against the flat plate collector.

[0008] Preferably, the support frame is a symmetrically arranged L-shaped structure, and the bottom of the support frame is fixedly connected to both ends of the cross plate.

[0009] Preferably, the adjustment assembly includes a support seat, a hinge block, an electric telescopic rod, a hinge seat, and a support shaft. The support seat is fixedly connected to one side of the bottom of the support frame. The support seat is hinged to the hinge block. The hinge block is fixedly connected to one end of the electric telescopic rod. The other end of the electric telescopic rod is fixedly connected to the hinge seat. The hinge seat is rotatably connected to the support shaft, and the support shaft is fixedly connected to the outer wall of the adjustment frame.

[0010] Preferably, the Tesla valve is connected to a water storage tank via a pipeline, and the water inlet pipe of the flat-plate collector is connected to the water storage tank via a pipeline.

[0011] Compared with the prior art, the beneficial effects of the utility model are: the inclination angle of the adjustment frame can be adjusted by the adjustment component, and then it can be adjusted to the corresponding angle in different seasons, so that the flat-plate collector can face the light angle, ensuring the light reception degree; the reciprocating screw is driven by the servo motor to rotate, and the reciprocating screw drives the movable bar to move back and forth, and the movable bar then drives the cleaning cotton strip to clean the surface of the flat-plate collector that receives light, ensuring the cleanliness of the flat-plate collector; the setting of the Tesla valve inputs the heat medium collected by the flat-plate collector into the water storage barrel jacket heat exchanger in a unidirectional manner, without reverse reflux phenomenon, and the higher the temperature, the better the unidirectional flow, and the heat exchange efficiency is much higher than that of simple natural circulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic structural diagram of the utility model from another viewing angle.

[0014] In the figure: flat plate collector 1, connecting shaft 2, adjustment frame 3, support frame 4, cross plate 5, adjustment assembly 6, support seat 61, hinge block 62, electric telescopic rod 63, hinge seat 64, support shaft 65, water outlet pipe 7, Tesla valve 8, movable bar 9, cleaning cotton strip 91, slide 10, reciprocating screw 11, servo motor 12, water storage barrel 13. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] Example 1

[0017] Reference Figure 1 , 2 , which is the first embodiment of the utility model, and provides a solar water heater with high efficiency heat exchange, including a flat plate collector 1, two ends of the flat plate collector 1 are respectively fixedly connected to an adjustment frame 3, two ends of one side of the adjustment frame 3 opposite to each other are respectively fixedly connected to a connecting shaft 2, the connecting shaft 2 is rotatably connected to the top of a support frame 4, one side of the bottom of the support frame 4 is fixedly connected to one end of an adjustment component 6, the other end of the adjustment component 6 is fixedly connected to the adjustment frame 3, one end of the flat plate collector 1 is fixedly connected to a water outlet pipe 7, and the water outlet pipe 7 is fixedly connected to a Tesla valve 8;

[0018] A slide groove 10 is recessed on the opposite side of the adjustment frame 3, and a reciprocating screw 11 is rotatably installed in the slide groove 10. One end of the reciprocating screw 11 is fixedly connected to the output shaft of a servo motor 12. The servo motor 12 is fixedly installed on the end of the adjustment frame 3 away from the connecting shaft 2. The reciprocating screw 11 is connected to the two sides of the movable bar 9 through a threaded structure, and the two ends of the movable bar 9 are slidably arranged in the slide groove 10.

[0019] According to the light angle of each season, the adjustment component 6 works to drive the fixed adjustment frame 3 to rotate with the connecting shaft 2 as the center. The adjustment frame 3 drives the flat plate collector 1 to rotate synchronously, thereby changing the inclination angle of the flat plate collector 1 to better adapt to the light angle of different seasons. The flat plate collector 1 uses solar radiation to make the internal medium flow upward and the cold flow downward. At the same time, the hot medium is input into the jacketed heat exchanger of the water storage barrel 13 in one direction through the restriction of the Tesla valve 8. There is no reverse reflux phenomenon, and the higher the temperature, the better the unidirectional flow, and the heat exchange efficiency is much higher than that of simple natural circulation.

[0020] Example 2

[0021] Reference Figure 1-2, which is the second embodiment of the utility model. This embodiment is based on the previous embodiment. Specifically, one end of the movable bar 9 is fixedly connected to the cleaning cotton strip 91, and the cleaning cotton strip 91 slides against the flat plate collector 1. After being used for a long time, the servo motor 12 is powered on to drive the fixed reciprocating screw 11 to rotate. The reciprocating screw 11 drives the movable bar 9 to move back and forth through the threaded structure. The movable bar 9 drives the fixed cleaning cotton strip 91 to move back and forth. The cleaning cotton strip 91 then scrapes and cleans the surface of the flat plate collector 1, thereby ensuring the cleanliness of the flat plate collector 1.

[0022] Specifically, the support frame 4 is a symmetrically arranged L-shaped structure, and the bottom of the support frame 4 is fixedly connected to the two ends of the cross plate 5. The cross plate 5 connects and fixes the two symmetrically arranged support frames 4, thereby ensuring the stability of the support frame 4.

[0023] Specifically, the adjustment assembly 6 includes a support seat 61, an articulated block 62, an electric telescopic rod 63, an articulated seat 64, and a support shaft 65. The support seat 61 is fixedly connected to one side of the bottom of the support frame 4. The support seat 61 is articulated to the articulated block 62. The articulated block 62 is fixedly connected to one end of the electric telescopic rod 63. The other end of the electric telescopic rod 63 is fixedly connected to the articulated seat 64. The articulated seat 64 is rotatably connected to the support shaft 65. The support shaft 65 is fixedly connected to the outer wall of the adjustment frame 3. When the adjustment assembly 6 is working, the electric telescopic rod 63 is powered on to work, driving the articulated seat 64 fixed at the end to move, and the articulated seat 64 drives the rotatably connected support shaft 65 to move synchronously. The support shaft 65 then drives the fixed adjustment frame 3 to rotate with the connecting shaft 2 as the center of the circle. The adjustment frame 3 drives the flat plate collector 1 and the fixed connecting shaft 2 to rotate synchronously. The connecting shaft 2 drives the fixed flow guide pipe 1 to rotate synchronously, thereby changing the inclination angle of the flat plate collector 1 to better adapt to the light angle in different seasons.

[0024] Specifically, the Tesla valve 8 is connected to the water storage tank 13 through a pipeline, and the water inlet pipe of the flat plate collector 1 is connected to the water storage tank 13 through a pipeline. The flat plate collector 1 uses solar radiation to make the internal medium flow upward and the cold flow downward. The hot medium flows out from the outlet pipe 7 and then is input into the jacket heat exchanger of the water storage tank 13 through the limited one-way input of the Tesla valve 8. There is no reverse reflux phenomenon, and the higher the temperature, the better the one-way flow, and the heat exchange efficiency is much higher than that of simple natural circulation.

[0025] Example 3

[0026] Reference Figure 1-2, which is the third embodiment of the utility model. This embodiment is based on the above two embodiments. When in use, according to the light angle of each season, the adjustment component 6 works, the electric telescopic rod 63 is powered on, and drives the hinge seat 64 fixed at the end to move, and the hinge seat 64 drives the rotatably connected support shaft 65 to move synchronously, and the support shaft 65 then drives the fixed adjustment frame 3 to rotate with the connecting shaft 2 as the center of the circle, and the adjustment frame 3 drives the flat plate collector 1 and the fixed connecting shaft 2 to rotate synchronously, thereby changing the inclination angle of the flat plate collector 1 to better adapt to the light angle of different seasons. The flat plate collector 1 uses solar radiation to make the internal medium heat flow upward and the cold flow downward. At the same time, the hot medium passes through the special The one-way input of the limit valve 8 to the water storage barrel 13 jacketed heat exchanger is free of reverse reflux, and the higher the temperature, the better the one-way flow, and the heat exchange efficiency is much higher than that of simple natural circulation. After long-term use, the servo motor 12 is powered on to drive the fixed reciprocating screw 11 to rotate, and the reciprocating screw 11 drives the movable bar 9 to move back and forth through the threaded structure, and the movable bar 9 drives the fixed cleaning cotton strip 91 to move back and forth, and the cleaning cotton strip 91 then scrapes and cleans the surface of the flat-plate collector 1, thereby ensuring the cleanliness of the flat-plate collector 1. The water heated inside the flat-plate collector 1 is transported from the water outlet pipe 7 to the water storage barrel 15 through a pipeline for storage, which is convenient for people to use.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A solar water heater with high efficiency heat exchange, comprising a flat plate collector (1), characterized in that: The two ends of the flat plate heat collector (1) are respectively fixedly connected to the adjustment frame (3); the two ends of one side of the adjustment frame (3) opposite to each other are respectively fixedly connected to the connection shaft (2); the connection shaft (2) is rotatably connected to the top of the support frame (4); one side of the bottom of the support frame (4) is fixedly connected to one end of the adjustment component (6); the other end of the adjustment component (6) is fixedly connected to the adjustment frame (3); one end of the flat plate heat collector (1) is fixedly connected to a water outlet pipe (7); and the water outlet pipe (7) is fixedly connected to a Tesla valve (8); The adjusting frame (3) has a concave groove (10) on one side opposite to the other. A reciprocating screw (11) is rotatably mounted in the groove (10). One end of the reciprocating screw (11) is fixedly connected to the output shaft of a servo motor (12). The servo motor (12) is fixedly mounted on the end of the adjusting frame (3) away from the connecting shaft (2). The reciprocating screw (11) is connected to two sides of a movable bar (9) via a threaded structure. Both ends of the movable bar (9) are slidably mounted in the groove (10).

2. A solar water heater with high efficiency heat exchange according to claim 1, characterized in that: One end of the movable strip (9) is fixedly connected to a cleaning cotton strip (91), and the cleaning cotton strip (91) slides against the flat plate collector (1).

3. A solar water heater with high efficiency heat exchange according to claim 1, characterized in that: The support frame (4) is a symmetrically arranged L-shaped structure, and the bottom of the support frame (4) is fixedly connected to the two ends of the transverse plate (5).

4. A solar water heater with high efficiency heat exchange according to claim 1, characterized in that: The adjustment assembly (6) comprises a support seat (61), a hinge block (62), an electric telescopic rod (63), a hinge seat (64), and a support shaft (65); the support seat (61) is fixedly connected to one side of the bottom of the support frame (4); the support seat (61) is hinged to the hinge block (62); the hinge block (62) is fixedly connected to one end of the electric telescopic rod (63); the other end of the electric telescopic rod (63) is fixedly connected to the hinge seat (64); the hinge seat (64) is rotatably connected to the support shaft (65); and the support shaft (65) is fixedly connected to the outer wall of the adjustment frame (3).

5. A solar water heater with high efficiency heat exchange according to claim 1, characterized in that: The Tesla valve (8) is connected to a water storage tank (13) via a pipeline, and the water inlet pipe of the flat-plate collector (1) is connected to the water storage tank (13) via a pipeline.

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