A flat-plate water exchange tank

Abstract

The present invention discloses a flat-plate water exchange tank, which relates to the technical field of water heaters. A heating tube is installed on the tank body, and a sleeve is installed inside the tank body and is sleeved on the outside of the heating tube. A rotating block is rotatably sleeved on the outside of each sleeve, and each rotating block is provided with a scraper that matches the corresponding sleeve. An airbag is connected to each rotating block, and the airbag has expandability. The airbag matches the tank body, and one end of the tank body is connected to a water inlet pipe, and the other end of the tank body is connected to a water outlet pipe. The present invention improves heating efficiency and reduces the influence of scale through the coordination of the sleeve, the rotating block and the scraper; the rotation of the limit plate on the rotating shaft accelerates water circulation or divides the area, so that the heating tube still has the ability to supply hot water in a timely manner when the output power is limited; in addition, the quick-disassembly and quick-installation structure of the filter and the anti-scaling coating reduce the difficulty and frequency of maintenance.

Description

Technical Field

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

[0002] The flat plate heat exchange tank is a high-efficiency heat exchange system that combines a plate heat exchanger and a heat storage tank. It is mainly used in solar water heating systems, air energy heat pumps, industrial waste heat recovery and other fields. It was created to solve the problems of low heat exchange efficiency, easy scaling, and difficult maintenance of traditional water tanks, while adapting to modern energy-saving and environmental protection needs.

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

[0004] The flat-plate water exchanger heaters currently on the market have reduced heat production capacity and corresponding heating efficiency in unfavorable conditions such as winter and bad weather. When faced with the same amount of water, the time required for heating is relatively longer, which affects the normal use of hot water. In addition, since the water in the water tank is in a static state and has poor fluidity, it will also affect the heating efficiency. In addition, the increase in scale attached to the surface of the heat exchange coil will also reduce the thermal conductivity of the heat exchange coil. This requires regular cleaning of the inside of the water tank, but this process is very cumbersome. Therefore, a flat-plate water exchanger 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 tank to solve the technical problem of low conversion efficiency of traditional heat exchange tanks.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a flat-plate water exchange tank, comprising a tank body, a heating pipe installed on the tank body, a sleeve installed inside the tank body and sleeved on the outside of the heating pipe, a rotating block rotatably sleeved on the outside of each sleeve, and each rotating block is provided with a scraper that matches the corresponding sleeve, each rotating block is connected to an airbag, and the airbag has expandability, the airbag is matched with the tank body, one end of the tank body is connected to a water inlet pipe, and the other end of the tank body is connected to a water 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, which 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. Then the heating is completed, the water is discharged through the water outlet pipe, and the airbag loses its support and falls back to its original position. During this period, as the airbag continues to move, the scraper on the rotating block rotates to scrape off the scale attached to the inner wall of the sleeve, reducing the impact of the scale on the heat exchange efficiency.

[0008] The present invention is further configured such that the interior of the box is rotatably connected to a plurality of rotating shafts located above the heating tube, and the rotating shafts are all connected to limit plates, and the limit plates cooperate with the inner walls of the box. A stepper motor is installed on the box, 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-install 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, preventing impurities from entering the water-using equipment and extending 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 provided 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 amplitude 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 solutions, the insulation layer can effectively reduce heat loss, 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 contact with the outer wall of the sleeve.

[0019] By adopting the above technical solution, the scraper made of flexible material can effectively reduce the wear on the sleeve and extend the service life of the sleeve, while the tightly fitting design enables the scraper to more effectively separate the two areas.

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

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

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

[0023] The present invention improves heating efficiency and reduces the impact of scale through the cooperation of the sleeve, the rotating block and the scraper; the rotation of the limit plate on the rotating shaft is used to accelerate the water circulation or separate the area, so that the heating pipe can still provide hot water in a timely manner when the output power is limited; in addition, the quick-disassembly and quick-installation structure and the anti-scaling coating of the filter reduce the difficulty and frequency of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

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

[0029] Figure 6 For the present invention Figure 3 A magnified view of the structure at point A in the middle.

[0030] In the figure: 1. Box body; 2. Water inlet pipe; 3. Water outlet pipe; 4. Pressure relief valve; 5. Filter; 6. Heating tube; 7. Sleeve; 8. Rotating block; 9. Scraper; 10. Airbag; 11. Rotating shaft; 12. Stepping motor; 13. Limit 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 should not 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 Figure 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, each sleeve 7 is rotatably sleeved on the outside with a rotating block 8, 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, and the air bag 10 matches the box body 1, one end of the box body 1 is connected to the water inlet pipe 2, and the other end of the box body 1 is connected to the water outlet pipe 3, water flows into the interior 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, causing the airbag 10 to continue to float upward. Then the heating is completed, and the water is discharged through the outlet pipe 3. 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 impact of the scale on the heat exchange efficiency.

[0034] Acetone is provided 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 Figure 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 several 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-disconnect and quick-install 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, prevent impurities from entering the water-using equipment, and extend the service life of the equipment. In addition, the quick-disconnect and quick-install 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, which 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 more effectively separate the two areas.

[0040] The interior of the box 1 is provided with an anti-scaling coating, which can effectively reduce the adhesion of scale and reduce 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 pipe 6 through the sleeve 7. As the water temperature rises, the airbag 10 expands due to the heat, causing the airbag 10 to continue to float upward. Then the heating is completed, and the water is discharged through the water outlet pipe 3. 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. Impurities under the water can be prevented from entering the water-using equipment, thereby extending 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 an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiment without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A flat plate heat exchange tank, comprising a tank body (1), characterized in that: The box (1) is provided with a heating tube (6), and the box (1) is provided with a sleeve (7) sleeved on the outside of the heating tube (6). The outside of each sleeve (7) is provided with a rotating block (8) for rotation, and each rotating block (8) is provided with a scraper (9) matched with the corresponding sleeve (7). Each rotating block (8) is connected with an air bag (10), and the air bag (10) has expansion properties. The air bag (10) is matched with the box (1), and one end of the box (1) is connected with a water inlet pipe (2). The box ( The other end of the housing (1) is connected to a water outlet pipe (3), the interior of the housing (1) is located above the heating pipe (6) and is rotatably connected to a plurality of rotating shafts (11), 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 housing (1), a stepper motor (12) is installed on the housing (1), and the output end of the stepper motor (12) is connected to the corresponding rotating shaft (11), a filter (5) is installed at the water outlet pipe (3), and a quick-release and quick-install structure is installed at the filter element inside the filter (5).

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

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

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

5. The flat-plate water exchange tank according to claim 1, characterized in that: The scraper (9) is made of a flexible material, and the outermost scraper (9) is tightly fitted to the outer wall of the sleeve (7).

6. The 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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