CN113154705A

CN113154705A - Air-drying-preventing solar water heater

Info

Publication number: CN113154705A
Application number: CN202110047113.7A
Authority: CN
Inventors: 丁扬
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-14
Filing date: 2021-01-14
Publication date: 2021-07-23

Abstract

The invention discloses an idle sunning prevention solar water heater which comprises a water storage tank, wherein the upper inner wall and the lower inner wall of the water storage tank are respectively communicated with a water inlet pipe and a water outlet pipe, a water storage cavity and a rotating cavity are arranged in the water storage tank, the water storage cavity is communicated with a plurality of heat collecting pipes at equal intervals, each heat collecting pipe is coaxially and rotatably sleeved with a transparent pipe, one end of each transparent pipe penetrates through the rotating cavity and is rotatably connected with the rotating cavity, the inner walls of the two sides of the rotating cavity are symmetrically provided with a left sliding chute and a right sliding chute, and racks are connected in the left sliding chute and the right sliding chute in a sliding mode. Has the advantages that: when the solar energy collector is in idle drying, the collector tube and the outside form a large temperature difference, so that the current intensity in a circuit where the temperature difference power generation sheet and the conductive spring are located is increased, the friction resistance and the tension of the return spring are overcome to drive the rack to move for a certain distance, the gear is driven to rotate for 90 degrees by the meshing gear, the sunlight is reflected by the outer reflecting layer, and the phenomenon that the collector tube is damaged or even explodes due to continuous heat absorption is avoided.

Description

Air-drying-preventing solar water heater

Technical Field

The invention relates to the technical field of water heaters, in particular to an air-drying prevention solar water heater.

Background

The water heater is a device which can increase the temperature of cold water into hot water in a certain time by various physical principles. According to different principles, the water heater can be divided into an electric water heater, a gas water heater, a solar water heater, a magnetic water heater, an air energy water heater, a heating water heater and the like. The solar water heater is a heating device for converting solar energy into heat energy, and heats water from low temperature to high temperature so as to meet the requirement of hot water in life and production of people. The solar water heater is divided into a vacuum tube type solar water heater and a flat plate type solar water heater according to the structural form, mainly uses the vacuum tube type solar water heater as a main part, and occupies 95 percent of domestic market share. The vacuum tube type domestic solar water heater is composed of heat collecting tubes, water storage tank and support, and is characterized by that the solar energy can be converted into heat energy, and mainly depends on the vacuum heat collecting tubes, and the vacuum heat collecting tubes can utilize the principle of that hot water floats upwards and cold water sinks to make water produce microcirculation to obtain the required hot water.

In the process of actually using the solar water heater, the situation that a user forgets to remember that water leads to the heat collecting tube and the water tank being in a hollow state often occurs, the heat collecting tube continuously absorbs heat but does not absorb heat by a water body, the heat collecting tube is easy to age due to empty sunning, a heat absorbing coating can fall off, the service life is seriously shortened, the temperature in the tube can reach 2500 ℃, and the risk of tube explosion exists.

In order to solve the problems, a solar water heater capable of preventing idle sunning is provided.

Disclosure of Invention

The invention aims to solve the problems in the background technology and provides a solar water heater capable of preventing idle sunning.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a solar water heater prevents empty sunning, includes the storage water tank, be equipped with the water storage chamber in the storage water tank and rotate the chamber, water storage chamber equidistance intercommunication has a plurality of thermal-collecting tubes, each the coaxial rotation cover of thermal-collecting tube outside is equipped with transparent pipe, the one end of hyaline tube is run through and is rotated the chamber and rotate with it and be connected, left spout and right spout have been seted up to the both sides inner wall symmetry in rotation chamber, common sliding connection has the rack in left spout and the right spout, and each is located and rotates the intracavity coaxial fixed cup joints the gear with rack toothing on the hyaline tube, the inner wall and the common fixedly connected with conducting spring of rack of right spout, sealed through-mounting has the thermoelectric generation piece between thermal-collecting tube and the hyaline tube, the thermoelectric generation piece is connected with the conducting spring electricity.

In the above air-drying prevention solar water heater, two guide grooves are symmetrically formed in one end, located in the left sliding groove, of the rack, guide rods are connected in the guide grooves in a sliding mode, one end of each guide rod is fixedly connected with the inner wall of the left sliding groove, a reset spring is movably sleeved on each guide rod, and two ends of each reset spring are fixedly connected with the inner walls of the rack and the left sliding groove respectively.

In the above-mentioned solar water heater for preventing air drying, the side surfaces of the left and right chutes opposite to the rack are all provided with friction resistance surfaces.

In the above-mentioned solar water heater for preventing air drying, the transparent tube is provided with an inner reflective layer and an outer reflective layer on the inner and outer surfaces under the heat collecting tube.

In the above air-drying prevention solar water heater, the upper and lower inner walls of the water storage tank are respectively communicated with a water inlet pipe and a water outlet pipe.

In the above-mentioned air-drying-proof solar water heater, the angle between the inner reflecting layer and the outer reflecting layer is 45-60 °.

Compared with the prior art, the air-drying prevention solar water heater has the advantages that:

1. when the solar energy collector is in idle drying, the collector tube and the outside form a large temperature difference, so that the current intensity in a circuit where the temperature difference power generation sheet and the conductive spring are located is increased, the friction resistance and the tension of the reset spring are overcome to drive the rack to move for a certain distance, the gear is driven to rotate for 90 degrees by the meshing gear, the sunlight is reflected by the outer reflecting layer, and the phenomenon that the collector tube is damaged or even explodes due to continuous heat absorption is avoided;

2. when the solar heat collecting tube is normally used, the inner reflecting layer can reflect solar rays to the heat collecting tube, and the heat absorption capacity of the heat collecting tube is improved.

Drawings

Fig. 1 is a sectional view of a top view of a solar water heater for preventing air drying according to the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is an enlarged schematic view of the structure at B in FIG. 1;

fig. 4 is a schematic structural view of a joint of a heat collecting tube and a transparent tube of an anti-stagnation solar water heater provided by the invention.

In the figure: the solar water heater comprises a water storage tank 1, a heat collecting pipe 2, a transparent pipe 3, a rotating cavity 4, a left sliding chute 5, a right sliding chute 6, a rack 7, a conductive spring 8, a guide rod 9, a guide groove 10, a return spring 11, a gear 12, a temperature difference power generation sheet 13, an inner reflecting layer 14 and an outer reflecting layer 15.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of other modifications without departing from the spirit and scope thereof as defined by the appended claims.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Examples

Referring to fig. 1-4, an idle sunning prevention solar water heater comprises a water storage tank 1, wherein the upper inner wall and the lower inner wall of the water storage tank 1 are respectively communicated with a water inlet pipe and a water outlet pipe, a water storage cavity and a rotating cavity 4 are arranged in the water storage tank 1, the water storage cavity is communicated with a plurality of heat collecting pipes 2 at equal intervals, a transparent pipe 3 is coaxially and rotatably sleeved outside each heat collecting pipe 2, an interlayer between each heat collecting pipe 2 and the corresponding transparent pipe 3 is vacuumized to play a role in heat preservation, inner and outer surfaces of the transparent pipe 3 below the heat collecting pipes 2 are respectively provided with an inner reflecting layer 14 and an outer reflecting layer 15, one end of the transparent pipe 3 penetrates through the rotating cavity 4 and is rotatably connected with the rotating cavity, the transparent pipe 3 is rotatably connected with the heat collecting pipes 2 and the rotating cavity 4 through a sealed heat insulation bearing to avoid breaking vacuum state and heat loss, the left sliding chute 5 and the right sliding chute 6 are connected with a rack 7 in a sliding manner, the side faces of the left sliding chute 5, the right sliding chute 6 and the rack 7, which are opposite to each other, are provided with friction resistance faces, namely, the sliding friction force of the sliding connection between the left sliding chute 5 and the right sliding chute 6 is large, a gear 12 meshed with the rack 7 is coaxially and fixedly sleeved on each transparent tube 3 in the rotating cavity 4, the half of the circumference of the gear 12 is equal to the limit distance of the movement of the rack 7, after the rack 7 moves to the limit position, the gear 12 and the transparent tube 3 rotate 90 degrees, the angle occupied by the inner reflecting layer 14 and the outer reflecting layer 15 ranges from 45 degrees to 60 degrees, most of sunlight can be blocked, one end of the rack 7 in the left sliding chute 5 is symmetrically provided with two guide grooves 10, the guide rods 9 are connected in the guide grooves 10 in a sliding manner, and one ends of the guide rods 9 are fixedly connected with the inner wall of the left sliding chute 5, reset spring 11 has been cup jointed in the activity on the guide bar 9, and reset spring 11's both ends respectively with rack 7, the inner wall fixed connection of left spout 5, at the in-process that rack 7 slided, guide bar 9 slides in guide way 10, lead to rack 7, make its sliding stability higher, reset spring 11 helps the reseing of rack 7 after the cooling of thermal-collecting tube 2, the inner wall of right spout 6 and the common fixedly connected with conducting spring 8 of rack 7, sealed running through installation has thermoelectric generation piece 13 between thermal-collecting tube 2 and the hyaline tube 3, thermoelectric semiconductor power generation is a neotype power generation mode, utilize seebeck effect directly to convert heat energy into the electric energy promptly, thermoelectric generation piece 13 and conducting spring 8 electric connection.

According to the invention, the water inlet pipe is connected with the tap water pipe, water feeding is carried out under tap water pressure, hot water is used through the water outlet pipe, sunlight penetrates through the transparent pipes 3 and absorbs heat from the heat absorption coating on the inner surface of the heat collection pipe 2, heat is conducted to the water body, complete heating of the water body in the water storage tank 1 is realized by micro-circulation of upward floating of the hot water and downward sinking of cold water, each transparent pipe 3 is in a constant position under the meshing of the gear 12 and the rack 7, the inner reflecting layer 14 is beneficial to reflecting the sunlight to the heat collection pipe 2, and the heat absorption efficiency of the heat collection pipe 2 is improved.

Once a user uses hot water in the water storage tank 1 and forgets to remember to the water, the heat collection tube 2 continuously absorbs heat, two surfaces of the thermoelectric generation sheet 13 are respectively the same as the heat collection tube 2 and the outside temperature, namely, one end of the heat collection tube 2 is a hot end and the other end of the heat collection tube is a cold end, the thermoelectric generation sheet 13 is the prior art, namely, the current is formed by utilizing the seebeck effect in a circuit where the conductive spring 8 is located, the current intensity is in direct proportion to the temperature difference, each circle of the conductive spring 8 generates a magnetic field under the action of the magnetic effect in the electrifying process of the conductive spring 8 and shrinks due to the same direction of the magnetic field, but because a friction resistance surface exists among the left sliding chute 5, the right sliding chute 6 and the rack 7, the sliding friction force between the sliding friction resistance surface and the sliding friction resistance surface is larger, the temperature difference between the heat collection tube 2 and the outside temperature is smaller when water is stored in the water storage tank 1 than when the water is exposed in the air, and the current intensity when the water is normally used is smaller than when the air is exposed, the contraction force of the conductive spring 8 in normal use cannot overcome the frictional resistance and the elastic force of the return spring 11, the contraction force of the conductive spring 8 in the idle sunning process can overcome the friction resistance to drive the rack 7 to slide towards the right chute 6, and gradually overcomes the pulling force of the return spring 11 until the shrinkage of the conductive spring 8 reaches the limit, the rack 7 synchronously drives the plurality of gears 12 to rotate 90 degrees, so that the outer reflecting layer 15 faces upwards to reflect the solar rays irradiated on the transparent tube 3, thereby avoiding the heat collection tube 2 from continuously absorbing heat and avoiding the damage and even danger caused by idle sunning, during the process of gradually reducing the temperature of the heat collecting pipe 2, a certain angle of rotation may occur at the outer reflective layer 15, in the process that the temperature of the heat collecting tube 2 gradually rises, the outer reflecting layer 15 can reset and shield, and the heat collecting tube 2 is always kept below the warning temperature.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A solar water heater capable of preventing air drying comprises a water storage tank (1) and is characterized in that a water storage cavity and a rotating cavity (4) are arranged in the water storage tank (1), the water storage cavity is communicated with a plurality of heat collecting pipes (2) in equal intervals, each heat collecting pipe (2) is sleeved with a transparent pipe (3) in a coaxial rotating mode, one end of each transparent pipe (3) penetrates through the rotating cavity (4) and is connected with the rotating cavity in a rotating mode, the inner walls of the two sides of the rotating cavity (4) are symmetrically provided with a left sliding chute (5) and a right sliding chute (6), the left sliding chute (5) and the right sliding chute (6) are connected with a rack (7) in a sliding mode, gears (12) meshed with the rack (7) are coaxially and fixedly sleeved on the transparent pipes (3) located in the rotating cavity (4), the inner wall of the right sliding chute (6) and the rack (7) are fixedly connected with a conductive spring (8) in a penetrating mode, and a temperature difference power generation sheet (13) is installed between the heat collecting pipes (2) and the transparent pipes (3) in a sealing and a penetrating mode, the thermoelectric generation piece (13) is electrically connected with the conductive spring (8).

2. The air-drying prevention solar water heater according to claim 1, characterized in that two guide grooves (10) are symmetrically formed in one end of the rack (7) located in the left sliding groove (5), a guide rod (9) is slidably connected in the guide grooves (10), one end of the guide rod (9) is fixedly connected with the inner wall of the left sliding groove (5), a return spring (11) is movably sleeved on the guide rod (9), and two ends of the return spring (11) are fixedly connected with the inner walls of the rack (7) and the left sliding groove (5) respectively.

3. The air-drying solar water heater according to claim 1, characterized in that the side surfaces of the left chute (5), the right chute (6) opposite to the rack (7) are provided with friction resistance surfaces.

4. The air-drying prevention solar water heater according to claim 1, characterized in that the transparent tube (3) is provided with an inner reflecting layer (14) and an outer reflecting layer (15) on the inner and outer surfaces below the heat collecting tube (2), respectively.

5. The air-drying solar water heater according to claim 1, wherein the upper and lower inner walls of the water storage tank (1) are respectively communicated with a water inlet pipe and a water outlet pipe.

6. A solar water heater preventing air drying according to claim 4, characterized in that the angle between the inner reflecting layer (14) and the outer reflecting layer (15) is 45-60 °.