Flat plate heat exchange water tank

Abstract

The invention discloses a flat plate heat exchange water tank and relates to the technical field of water heaters, a heating pipe is installed on a tank body, sleeves arranged on the outer side of the heating pipe in a sleeving mode are installed in the tank body, each sleeve is rotationally sleeved with a rotating block, and each rotating block is provided with a scraper blade matched with the corresponding sleeve; each rotating block is connected with an air bag, the air bags have expansibility, the air bags are matched with a box body, one end of the box body is connected with a water inlet pipe, and the other end of the box body is connected with a water outlet pipe. Through cooperation of the sleeve, the rotating block and the scraping plate, the heating efficiency is improved, and the scale influence is reduced; a limiting plate on a rotating shaft rotates to accelerate water flow circulation or separate the water flow to carry out area division, so that the heating pipe still has the capability of supplying hot water in time when the output power is limited; and in addition, the maintenance difficulty and frequency are reduced through the quick disassembly and assembly structure and the anti-scale coating of the filter.

Description

Technical Field

[0001] The present invention relates to the technical field of water heaters, and particularly to a flat-plate heat exchange water tank. Background Art

[0002] A flat-plate heat exchange water tank is an efficient heat exchange system that combines a plate heat exchanger and a hot water storage tank, and is mainly used in fields such as solar water heating systems, air source heat pumps, and industrial waste heat recovery. Its emergence is to solve problems such as low heat exchange efficiency, easy scaling, and difficult maintenance of traditional water tanks, and at the same time meet the modern energy conservation and environmental protection requirements.

[0003] The simple structure of a flat-plate heat exchange water tank mainly includes the following parts: a water tank shell, usually made of materials such as stainless steel, enamel, or fiberglass, which has good corrosion resistance and strength and can protect the internal structure and water quality; an inner tank, generally made of stainless steel or enamel, which has good thermal conductivity and corrosion resistance to ensure water quality safety; heat exchange coiled pipes, mostly made of copper pipes or stainless steel pipes, which have good heat conduction performance. The heat exchange coiled pipes are usually installed inside the water tank and are in close contact with the inner tank, and transfer heat to the water through heat conduction; an inlet pipe, used to introduce cold water into the water tank, usually installed at the bottom of the water tank; an outlet pipe, used to transport hot water to the water use point, usually installed at the top of the water tank.

[0004] Currently, in adverse situations such as winter and bad weather, the heat production capacity of flat-plate water heaters on the market decreases, so the corresponding heating efficiency decreases. When facing the same amount of water, the heating time required is relatively longer, thus affecting the normal use of hot water. And because the water in the water tank is in a static state and has poor fluidity, it will also affect the heating efficiency. In addition, with the increase of scale attached to the surface of the heat exchange coiled pipes, the heat conduction efficiency of the heat exchange coiled pipes will also decrease, which requires regular cleaning of the inside of the water tank, but this process is very cumbersome. Therefore, a flat-plate heat exchange water tank is designed to solve the above problems. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a flat-plate heat exchange water tank to solve the technical problem of relatively low conversion efficiency of traditional heat exchange water tanks.

[0006] To achieve the above purpose, the present invention provides the following technical solution: a flat-plate heat exchange water tank, including a box body, a heating pipe is installed on the box body, a sleeve is installed inside the box body and sleeved outside the heating pipe, a rotating block is rotatably sleeved outside each sleeve, and a scraping plate cooperating with the corresponding sleeve is provided on each rotating block. An air bag is connected to each rotating block, and the air bag has expansibility. The air bag cooperates with the box body. One end of the box body is connected with an inlet pipe, and the other end of the box body is connected with an outlet pipe.

[0007] By adopting the above technical solution, water flows into the interior of the box through the water inlet pipe. As the water continues to flow in, the airbag that was originally drooping naturally begins to rise slowly until it floats inside the water. The water in the box is heated through the sleeve by the heating tube. As the water temperature rises, the airbag expands due to the heat, causing the airbag to continue to float upward. After the heating is completed, the water is discharged through the water outlet pipe, and the airbag loses its support and falls to its original position. During this period, as the airbag continues to move, the scraper on the rotating block is driven to rotate, scraping off the scale attached to the inner wall of the sleeve, thereby reducing the impact of the scale on the heat exchange efficiency.

[0008] The present invention is further configured such that a plurality of rotating shafts are rotatably connected inside the box body above the heating tube, and the rotating shafts are all connected with limit plates, and the limit plates cooperate with the inner walls of the box body, and a stepper motor is installed on the box body, and the output end of the stepper motor is connected to the corresponding rotating shaft.

[0009] By adopting the above technical solution, when the output power of the heating tube is insufficient, the stepper motor is started, so that the water in the box is divided into two areas through the cooperation between the limit plates on the rotating shaft, so that the output heat of the heating tube is concentratedly supplied to one of the areas to avoid affecting the normal supply of hot water. In addition, when the output power of the heating tube is normal, the stepper motor drives the limit plate to rotate continuously by rotating the rotating shaft, thereby accelerating the heat transfer and improving the heating efficiency.

[0010] The present invention is further configured such that a filter is installed at the water outlet pipe, and a quick-release and quick-installation structure is installed at the filter element inside the filter.

[0011] By adopting the above technical solution, the filter is used to filter impurities scraped from the sleeve in the water, prevent impurities from entering the water-using equipment, and extend the service life of the equipment. In addition, the quick-disassembly structure makes the replacement and maintenance of the filter element more convenient and quick, reducing maintenance time and cost.

[0012] The present invention is further configured such that acetone is arranged inside each of the airbags, and the acetone cooperates with the box body through the corresponding airbag.

[0013] By adopting the above technical solution, acetone expands faster when heated, thereby increasing the rotation range of the airbag and improving the efficiency of descaling the sleeve surface.

[0014] The present invention is further configured such that a pressure relief valve is installed on the box body.

[0015] By adopting the above technical solution, the pressure relief valve can effectively prevent the internal pressure of the water tank from being too high, ensure the safe operation of the equipment, and avoid equipment damage or safety accidents caused by excessive pressure.

[0016] The present invention is further configured such that a heat-insulating layer is installed inside the outer wall of the box.

[0017] By adopting the above technical solution, the heat insulation layer can effectively reduce heat dissipation, improve energy utilization efficiency, and reduce operating costs.

[0018] The present invention is further configured such that the scraper is made of a flexible material, and the scraper located on the outermost side is in close fit with the outer wall of the sleeve.

[0019] By adopting the above technical solution, the scraper made of a flexible material can effectively reduce the wear of the sleeve and extend the service life of the sleeve, and the close fit design enables the scraper to more effectively separate the two regions.

[0020] The present invention is further configured such that an anti-scaling coating is provided inside the box body.

[0021] By adopting the above technical solution, the anti-scaling coating can effectively reduce the adhesion of water scale and reduce the maintenance frequency and cost.

[0022] In summary, the present invention mainly has the following beneficial effects:

[0023] Through the cooperation of the sleeve, the rotating block and the scraper, the present invention improves the heating efficiency and reduces the influence of water scale; the rotation of the limiting plate on the rotating shaft accelerates the water flow circulation or the partition is used for area separation, so that the heating pipe still has the ability to supply hot water in time with a limited output power; in addition, the quick-disassembly and quick-assembly structure of the filter and the anti-scaling coating reduce the maintenance difficulty and frequency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 is a side sectional view of the overall structure of the present invention;

[0026] Figure 3 is a front sectional view of the overall structure of the present invention;

[0027] Figure 4 is a top sectional view of the overall structure of the present invention;

[0028] Figure 5 is a half-sectional schematic diagram of the overall structure of the present invention;

[0029] Figure 6 is the Figure 3 enlarged view of the structure at A in the present invention.

[0030] In the figure: 1, box body; 2, water inlet pipe; 3, water outlet pipe; 4, pressure relief valve; 5, filter; 6, heating pipe; 7, sleeve; 8, rotating block; 9, scraper; 10, airbag; 11, rotating shaft; 12, stepper motor; 13, limiting plate. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] The following describes an embodiment of the present invention based on its overall structure.

[0033] A flat plate water exchange tank, such as Figures 1-6 As shown, it includes a box body 1, a heating tube 6 is installed on the box body 1, a sleeve 7 is installed inside the box body 1 and is sleeved on the outside of the heating tube 6, a rotating block 8 is rotatably sleeved on the outside of each sleeve 7, and each rotating block 8 is provided with a scraper 9 that matches the corresponding sleeve 7, each rotating block 8 is connected to an air bag 10, and the air bag 10 has expansion properties, and the air bag 10 is matched with the box body 1, one end of the box body 1 is connected to a water inlet pipe 2, and the other end of the box body 1 is connected to a water outlet pipe 3, water flows into the inside of the box body 1 through the water inlet pipe 2, and as the water flows With the continuous influx, the airbag 10, which was originally drooping naturally, begins to rise slowly until it floats inside the water. The water in the box 1 is heated by the heating tube 6 through the sleeve 7. As the water temperature rises, the airbag 10 expands due to the heat, so that the airbag 10 continues to float upward. After the heating is completed, the water is discharged through the water outlet pipe 3, and the airbag 10 loses its support and falls to its original position. During this period, as the airbag 10 continues to move, the scraper 9 on the rotating block 8 is driven to rotate, scraping off the scale attached to the inner wall of the sleeve 7, reducing the influence of the scale on the heat exchange efficiency.

[0034] Acetone is arranged inside each airbag 10 , and the acetone cooperates with the box body 1 through the corresponding airbag 10 . The acetone expands faster when heated, thereby increasing the rotation amplitude of the airbag 10 and improving the efficiency of descaling the surface of the sleeve 7 .

[0035] like Figures 2-5 It can be seen that the interior of the box body 1 is located above the heating tube 6 and is rotatably connected with a plurality of rotating shafts 11, and the rotating shafts 11 are all connected to limit plates 13, and the limit plates 13 cooperate with the inner wall of the box body 1. A stepper motor 12 is installed on the box body 1, and the output end of the stepper motor 12 is connected to the corresponding rotating shaft 11. When the output power of the heating tube 6 is insufficient, the stepper motor 12 is started, so that the water in the box body 1 is divided into two areas through the cooperation between the limit plates 13 on the rotating shaft 11, so that the output heat of the heating tube 6 is concentratedly supplied to one of the areas to avoid affecting the normal supply of hot water. In addition, when the output power of the heating tube 6 is normal, the stepper motor 12 drives the limit plate 13 to rotate continuously by rotating the rotating shaft 11, thereby accelerating the heat transfer and improving the heating efficiency.

[0036] A filter 5 is installed at the water outlet pipe 3, and a quick-release and quick-installation structure is installed at the filter element inside the filter 5. The filter 5 is used to filter impurities scraped from the sleeve 7 in the water to prevent impurities from entering the water-using equipment and extend the service life of the equipment. In addition, the quick-release and quick-installation structure makes the replacement and maintenance of the filter element more convenient and quick, reducing maintenance time and cost.

[0037] A pressure relief valve 4 is installed on the box body 1, which can effectively prevent the internal pressure of the water tank from being too high, ensure the safe operation of the equipment, and avoid equipment damage or safety accidents caused by excessive pressure.

[0038] An insulation layer is installed inside the outer wall of the box body 1, and the insulation layer can effectively reduce heat loss, improve energy utilization efficiency, and reduce operating costs.

[0039] The scraper 9 is made of a flexible material. The outermost scraper 9 fits tightly against the outer wall of the sleeve 7. The scraper 9 made of flexible material can effectively reduce the wear on the sleeve 7 and extend the service life of the sleeve 7. The tight-fitting design enables the scraper 9 to separate the two areas more effectively.

[0040] The interior of the housing 1 is provided with an anti-scaling coating, which can effectively reduce the adhesion of scale and reduce the maintenance frequency and cost.

[0041] Working principle: water flows into the interior of the box 1 through the water inlet pipe 2. As the water flows in continuously, the airbag 10, which was originally drooping naturally, begins to rise slowly until it floats inside the water. The water in the box 1 is heated through the heating tube 6 through the sleeve 7. As the water temperature rises, the airbag 10 expands due to the heat, so that the airbag 10 continues to float upward. After the heating is completed, the water is discharged through the water outlet pipe 3, and the airbag 10 loses its support and falls to its original position. During this period, as the airbag 10 continues to move, the scraper 9 on the rotating block 8 rotates to scrape off the scale attached to the inner wall of the sleeve 7, reducing the impact of the scale on the heat exchange efficiency. Finally, the water is filtered through the filter 5 and scraped off from the sleeve 7. The stepper motor 12 can remove impurities from the water-using equipment and extend the service life of the equipment. When the output power of the heating tube 6 is insufficient, the stepper motor 12 is started, so that the water in the box body 1 is divided into two areas through the cooperation between the limit plates 13 on the rotating shaft 11, so that the output heat of the heating tube 6 is concentratedly supplied to one of the areas to avoid affecting the normal supply of hot water. In addition, when the output power of the heating tube 6 is normal, the stepper motor 12 drives the limit plate 13 to rotate continuously by rotating the rotating shaft 11, thereby accelerating the transfer of heat and improving the heating efficiency. When the internal pressure of the box body 1 is too high, the pressure is reduced by the pressure relief valve 4 to avoid equipment damage or safety accidents caused by excessive pressure.

[0042] Although embodiments of the present invention have been shown and described, the specific embodiments are merely explanations of the present invention and not limitations thereof. The specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions, and variations that do not make a creative contribution to the embodiments as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A flat plate water exchange tank, comprising a tank body (1), characterized in that: A heating tube (6) is installed on the box body (1), and a sleeve (7) is installed inside the box body (1) and is sleeved on the outside of the heating tube (6). A rotating block (8) is rotatably sleeved on the outside of each sleeve (7), and each rotating block (8) is provided with a scraper (9) that matches the corresponding sleeve (7). Each rotating block (8) is connected to an airbag (10), and the airbag (10) has expandability. The airbag (10) matches the box body (1).

2. A flat plate water exchange tank according to claim 1, characterized in that: One end of the box body (1) is connected to a water inlet pipe (2), and the other end of the box body (1) is connected to a water outlet pipe (3).

3. A flat plate water exchange tank according to claim 1, characterized in that: The interior of the box (1) is rotatably connected to a plurality of rotating shafts (11) located above the heating tube (6), and the rotating shafts (11) are all connected to limit plates (13), and the limit plates (13) are matched with the inner wall of the box (1). A stepper motor (12) is installed on the box (1), and the output end of the stepper motor (12) is connected to the corresponding rotating shaft (11).

4. A flat plate water exchange tank according to claim 2, characterized in that: A filter (5) is installed at the water outlet pipe (3), and a quick-disassembly and quick-assembly structure is installed at the filter element inside the filter (5).

5. A flat plate water exchange tank according to claim 1, characterized in that: Acetone is arranged inside each of the air bags (10), and the acetone cooperates with the box body (1) through the corresponding air bag (10).

6. A flat plate water exchange tank according to claim 1, characterized in that: A pressure relief valve (4) is installed on the box body (1).

7. A flat plate water exchange tank according to claim 1, characterized in that: A heat-insulating layer is installed inside the outer wall of the box body (1).

8. A flat plate water exchange tank according to claim 3, characterized in that: The scraper (9) is made of a flexible material, and the scraper (9) located on the outermost side is tightly fitted to the outer wall of the sleeve (7).

9. A flat plate water exchange tank according to claim 1, characterized in that: The interior of the box (1) is provided with an anti-scaling coating.

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