Flat plate integrated centralized solar water heater

Abstract

The invention discloses a flat plate integrated centralized solar water heater which comprises a support, a heat preservation box body is fixedly installed on one side of the support, sliding grooves are formed in the two sides of the heat preservation box body correspondingly, the interiors of the two sliding grooves are slidably connected with extended heat preservation shells correspondingly, and a plurality of first heat storage pipe bodies are fixedly installed in the heat preservation box body; according to the flat plate type solar water heater, the pushing mechanism is arranged, the two extended heat preservation shells of the flat plate type solar water heater slide along the heat preservation box body, the heat storage area of the water heater is adjusted, and therefore the heat storage amount of the solar water heater meets the requirements of people; the outer side of the energy storage tube body is coated with the heat storage coating film, and the fluorocarbon base material has excellent wear resistance and impact resistance in the aspect of mechanical performance, and especially shows long-term fading resistance and ultraviolet light resistance in atrocious weather and environment.

Description

Technical Field

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

[0002] The solar water heater adopts fully automatic static operation, does not produce noise during use, has good thermal insulation performance, large heat storage energy, and can meet the needs of multiple people at the same time. It can also be used as an emergency water source when there is a water outage. The water heater has the function of sewage purification, making the water source cleaner and pollution-free. Solar energy, as a renewable energy source, is environmentally friendly and pollution-free. It only needs sunlight to operate normally, with outstanding energy-saving effects, saving a lot of electricity and water bills. It is more economical and practical. The investment can be recovered in 2 or 3 years after a one-time investment. Solar energy only absorbs sunlight for heating, which is safer and more reliable than gas water heaters. At present, solar water heaters on the market are divided into vacuum tube solar water heaters and flat-plate solar water heaters. Vacuum tube solar water heaters occupy 95% of the domestic market share. Vacuum tube household solar water heaters are composed of related parts such as heat collecting tubes, water storage tanks and brackets. The conversion of solar energy into thermal energy mainly relies on vacuum collecting tubes. The principle of hot water floating and cold water sinking is used to make the water microcirculate and achieve the required hot water. Flat-plate solar water heaters are specially designed and developed for high-rise and small high-rise residential buildings, making up for the regret that traditional solar water heaters cannot be perfectly integrated with buildings and the environment due to their inherent deficiencies.

[0003] In order to extend the service life of the hot water pipes on solar water heaters, people generally use spraying technology to spray coatings on the outer sides of the hot water pipes. The current spraying methods are divided into powder spraying and fluorocarbon spraying. Relatively speaking, the spraying performance of fluorocarbon spraying is higher, and the wear resistance of the coating is also better. No matter how harsh the conditions are, there will be no fading. The price per ton of powder spraying is about 10,000 yuan lower than that of fluorocarbon spraying per ton. Fluorocarbon spraying can be used not only for aluminum curtain walls but also for outdoor profiles, while powder spraying can only be used indoors. Powder spraying means a spraying method in which a coating is sprayed on the surface of an object through an electrostatic plastic spraying machine. Fluorocarbon spraying is a method of liquid spraying. Currently, fluorocarbon spraying is more suitable for spraying in high-class occasions because the charging standard is relatively high. The raw material of powder spraying is a coating made of thermosetting polyester or epoxy resin powder. The raw material of fluorocarbon spraying is a coating processed from vinylidene fluoride resin and metallic aluminum powder. The characteristics of powder spraying are good corrosion resistance and weather resistance, and it is also very wear-resistant, and the price is relatively affordable. The biggest weakness of powder spraying is that it will fade when exposed to the sun for a long time, and the service life is relatively short, probably only about 10 years. Powder spraying uses the principle of electrostatic spraying to adsorb dry powder on aluminum profiles and then cures the powder into a firm and bright coating about 60 microns thick after baking at a temperature above 200°C, making the product surface flat, smooth, and with uniform color, having extremely strong acid resistance, alkali resistance, impact resistance, and wear resistance, and being able to withstand strong ultraviolet radiation and acid rain erosion for a long time without coating powdering, fading, or peeling. The service life of powder-sprayed aluminum profiles reaches 30 years under normal conditions. Its surface coating is guaranteed not to fade, change color, or crack within 5 - 10 years. Its weather resistance and corrosion resistance are superior to ordinary aluminum materials, and the colors are diverse. Even in an environment of wind and sun, fluorocarbon spraying can maintain its gloss for a long time and will never fade, change color, or powder. Usually, cleaning is very simple, just rinse with clean water directly, and the service life is also relatively long, exceeding 20 years. Fluorocarbon spraying is a kind of electrostatic spraying and also liquid spraying, also known as oiling, belonging to high-class spraying with a relatively high price. Fluorocarbon spraying has excellent anti-fading properties, anti-frosting properties, corrosion resistance against air pollution such as acid rain, strong anti-ultraviolet ability, strong anti-cracking ability, and can withstand harsh weather conditions, which are beyond the reach of general coatings. Fluorocarbon spray coatings are made with polyvinylidene fluoride resin nCH2CF2 baked (CH2CF2)n (PVDF) as the base material or mixed with metallic aluminum powder as the pigment. In the chemical structure of the fluorocarbon base material, it is bonded by fluorine / carbon chemical bonds. This structure with short bond properties combines with hydrogen ions to form the most stable and firm bond. The stability and firmness in the chemical structure make the physical properties of fluorocarbon coatings different from general coatings. In addition to excellent wear resistance and impact resistance in mechanical properties, especially in harsh climates and environments, it shows long-lasting anti-fading and anti-ultraviolet properties.

[0004] However, traditional flat-plate solar water heaters have the following disadvantages:

[0005] The heat storage effect of traditional flat-plate solar water heaters is average and cannot meet people's heat storage needs. Summary of the Invention

[0006] The purpose of the present invention is to provide a flat integrated centralized solar water heater to solve the problem that the heat storage effect of traditional flat-plate solar water heaters is average and cannot meet people's heat storage needs as mentioned in the above background technology.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A flat integrated centralized solar water heater, including a bracket, one side of the bracket is fixedly installed with a heat preservation box body, sliding grooves are opened on both sides of the heat preservation box body, and extension heat preservation shells are slidably connected inside the two sliding grooves. A number of first heat storage pipe bodies are fixedly installed inside the heat preservation box body, and a number of second heat storage pipe bodies are fixedly installed inside the two extension heat preservation shells. A heat preservation box cover plate is snap-fitted on the top end of the heat preservation box body. Heat storage coating films are laid on the outer sides of the number of first heat storage pipe bodies and the outer sides of the number of second heat storage pipe bodies. The heat storage coating film includes a protective film, a nano fluorocarbon layer, a fluorocarbon coloring layer, a fluorocarbon sealing layer, a resin epoxy layer, an adhesive, and a flame retardant heat preservation board. A pushing mechanism is fixedly installed in the middle of the bracket. The pushing mechanism includes a screw rod and two angle seats. A length rod is arranged on one side of the screw rod. A height block slidably connected to the length rod is threadedly connected to the middle of the screw rod. Two sides of the height block are respectively fixedly connected to one side of the two angle seats.

[0008] As a preferred technical solution of the present invention, the bottom end of the protective film is fixedly connected to the top end of the nano fluorocarbon layer, the bottom end of the nano fluorocarbon layer is fixedly connected to the top end of the fluorocarbon coloring layer, the bottom end of the fluorocarbon coloring layer is fixedly connected to the top end of the fluorocarbon sealing layer, the bottom end of the fluorocarbon sealing layer is fixedly connected to the top end of the resin epoxy layer, the bottom end of the resin epoxy layer is adhesively connected to the top end of the adhesive, and the bottom end of the adhesive is adhesively connected to the top end of the flame retardant heat preservation board.

[0009] As a preferred technical solution of the present invention, the bottom ends of a part of the flame retardant heat preservation boards are fixedly connected to the number of first heat storage pipe bodies, and the bottom ends of the other part of the flame retardant heat preservation boards are fixedly connected to the number of second heat storage pipe bodies.

[0010] As a preferred technical solution of the present invention, the adhesive is made of a high-performance aircraft special structural adhesive glue material, and the flame retardant heat preservation board is made of XPS board material.

[0011] As a preferred technical solution of the present invention, push rods are rotatably connected inside both of the angle seats. The top ends of both push rods are rotatably connected with sliding blocks. The top ends of both sliding blocks are respectively slidably connected with the bottom ends of two extended heat preservation shells. The angle seats drive the push rods to move synchronously. The push rods push the sliding blocks from one side. The sliding blocks drive the extended heat preservation shells to slide relative to the sliding grooves, and the area of the extended heat preservation shells relative to the heat preservation box body is adjusted.

[0012] As a preferred technical solution of the present invention, the bottom end of the length rod is fixedly connected with the bracket. A servo motor is fixedly installed on the bracket and located on one side of the length rod. The output end of the servo motor is fixedly connected with the end of the screw rod facing it. After the servo motor is powered on and starts, the servo motor drives the screw rod to rotate. The thread on the surface of the screw rod matches the thread on the inner wall of the height block. The height block is limited by the length rod, so the height block slides along the screw rod, and the height of the angle seat is adjusted during the sliding process of the height block.

[0013] As a preferred technical solution of the present invention, a first water inlet is opened on the surface of the heat preservation box body, and a first water outlet is opened on the heat preservation box body and located on one side of the first water inlet. Second water inlets are opened on the surfaces of both extended heat preservation shells, and second water outlets are opened on both extended heat preservation shells and located on one side of the second water inlets. An external water supply device injects water into the first heat storage pipe body through the first water inlet, and the water in the first heat storage pipe body is discharged through the first water outlet. The external water supply device injects water into the second heat storage pipe body through the second water inlet, and the water in the second heat storage pipe body is discharged to the outside through the second water outlet.

[0014] As a preferred technical solution of the present invention, a heat preservation box cover plate is snap-fitted and installed at the top end of the heat preservation box body. A toughened glass plate is fixedly installed at the bottom end of the heat preservation box cover plate. A transparent heat preservation board is fixedly installed at the bottom end of the toughened glass plate. The bottom end of the transparent heat preservation board is in contact connection with the side of the first heat storage pipe body facing it. The transparent heat preservation board is made of polycarbonate material. The transparent heat preservation board is a double-layer hollow structure with a thickness of 7.8 mm. The toughened glass plate is a colored low-iron toughened glass with a thickness of 3.2 mm.

[0015] As a preferred technical solution of the present invention, the thickness of the periphery and the bottom of the heat preservation box body is 40 - 60 mm, and the length, width and height of the heat preservation box body are 2000×820×205 mm respectively.

[0016] As a preferred technical solution of the present invention, the water storage pipe capacities of several first heat storage pipe bodies and several second heat storage pipe bodies are all 150 L.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. By setting a pushing mechanism, the two extended heat preservation shells of the flat-plate solar water heater slide along the heat preservation box body to adjust the heat storage area of the water heater, so that the heat storage capacity of the solar water heater meets the needs of people.

[0019] 2. A heat storage coating is applied on the outer side of the energy storage tube body. The fluorocarbon base material has excellent wear resistance and impact resistance in terms of mechanical properties. Especially in harsh climates and environments, it shows long-term anti-fading and anti-ultraviolet properties.

[0020] 3. The flat-plate solar water heater has an integrated box structure, which is compact, small in volume, light in weight, has good heat collection and heat storage effects, and is very simple to install, plug-and-play. The product has better cost performance, long service life, competitive price, and is inexpensive and of good quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a partial schematic diagram of the present invention;

[0022] Figure 2 It is a side view of the present invention;

[0023] Figure 3 It is a side view of the pushing mechanism of the present invention;

[0024] Figure 4 It is an exploded schematic diagram of the heat preservation box body of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the first heat storage tube body of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the heat storage coating of the present invention.

[0027] In the figure: 1. Heat preservation box body; 2. Heat preservation box cover plate; 3. Extended heat preservation shell; 4. First water inlet; 5. First water outlet; 6. Second water inlet; 7. Second water outlet; 8. Second heat storage tube body; 9. Bracket; 10. Pushing mechanism; 101. Length rod; 102. Servo motor; 103. Angle seat; 104. Push rod; 105. Sliding block; 106. Height block; 107. Screw; 11. Sliding groove; 12. First heat storage tube body; 13. Transparent heat preservation plate; 14. Tempered glass plate; 15. Heat storage coating; 151. Protective film; 152. Nano-fluorocarbon layer; 153. Fluorocarbon coloring layer; 154. Fluorocarbon sealing layer; 155. Resin epoxy layer; 156. Adhesive; 157. Flame-retardant heat preservation board. DETAILED DESCRIPTION OF THE INVENTION

[0028] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figure 1-6 , the present invention provides a flat integrated centralized solar water heater, including a bracket 9. One side of the bracket 9 is fixedly installed with a heat preservation box body 1. Sliding grooves 11 are opened on both sides of the heat preservation box body 1. Extended heat preservation shells 3 are slidably connected inside the two sliding grooves 11. A plurality of first heat storage pipe bodies 12 are fixedly installed inside the heat preservation box body 1. A plurality of second heat storage pipe bodies 8 are fixedly installed inside the two extended heat preservation shells 3. A heat preservation box cover plate 2 is snap-fitted and installed at the top end of the heat preservation box body 1. A heat storage coating film 15 is laid on the outer sides of the plurality of first heat storage pipe bodies 12 and the plurality of second heat storage pipe bodies 8. The heat storage coating film 15 includes a protective film 151, a nano fluorocarbon layer 152, a fluorocarbon coloring layer 153, a fluorocarbon sealing layer 154, a resin epoxy layer 155, an adhesive 156, and a flame-retardant heat preservation board 157. A pushing mechanism 10 is fixedly installed in the middle of the bracket 9. The pushing mechanism 10 includes a screw rod 107 and two angle seats 103. A length rod 101 is provided on one side of the screw rod 107. A height block 106 slidably connected to the length rod 101 is threadedly connected to the middle of the screw rod 107. The two sides of the height block 106 are respectively fixedly connected to one side of the two angle seats 103.

[0030] The bottom end of the protective film 151 is fixedly connected to the top end of the nano fluorocarbon layer 152. The bottom end of the nano fluorocarbon layer 152 is fixedly connected to the top end of the fluorocarbon coloring layer 153. The bottom end of the fluorocarbon coloring layer 153 is fixedly connected to the top end of the fluorocarbon sealing layer 154. The bottom end of the fluorocarbon sealing layer 154 is fixedly connected to the top end of the resin epoxy layer 155. The bottom end of the resin epoxy layer 155 is adhesively connected to the top end of the adhesive 156. The bottom end of the adhesive 156 is adhesively connected to the top end of the flame-retardant heat preservation board 157.

[0031] The bottom ends of a part of the flame-retardant heat preservation board 157 are fixedly connected to the plurality of first heat storage pipe bodies 12, and the bottom ends of another part of the flame-retardant heat preservation board 157 are fixedly connected to the plurality of second heat storage pipe bodies 8.

[0032] The adhesive 156 is made of a high-performance aircraft special structural adhesive glue material, and the flame-retardant heat preservation board 157 is made of an XPS board material.

[0033] A push rod 104 is rotatably connected inside each of the two angle seats 103. The tops of the two push rods 104 are rotatably connected with sliding blocks 105. The tops of the two sliding blocks 105 are respectively slidably connected with the bottoms of the two extended heat preservation shells 3. The angle seats 103 drive the push rods 104 to move synchronously. The push rods 104 push the sliding blocks 105 from one side. The sliding blocks 105 drive the extended heat preservation shells 3 to slide relative to the sliding grooves 11, and the area of the extended heat preservation shells 3 relative to the heat preservation box body 1 is adjusted.

[0034] The bottom end of the length rod 101 is fixedly connected with the bracket 9. A servo motor 102 is fixedly installed on the bracket 9 on one side of the length rod 101. The output end of the servo motor 102 is fixedly connected with the end opposite to the screw rod 107. After the servo motor 102 is powered on and starts, the servo motor 102 drives the screw rod 107 to rotate. The thread on the surface of the screw rod 107 matches the thread on the inner wall of the height block 106. The height block 106 is limited by the length rod 101, so the height block 106 slides along the screw rod 107, and the height of the angle seat 103 is adjusted during the sliding process of the height block 106.

[0035] A first water inlet 4 is opened on the surface of the heat preservation box body 1. A first water outlet 5 is opened on the heat preservation box body 1 on one side of the first water inlet 4. Second water inlets 6 are opened on the surfaces of the two extended heat preservation shells 3. Second water outlets 7 are opened on the two extended heat preservation shells 3 on one side of the second water inlets 6. An external water supply device injects water into the first heat storage pipe body 12 through the first water inlet 4, and the water in the first heat storage pipe body 12 is discharged through the first water outlet 5. The external water supply device injects water into the second heat storage pipe body 8 through the second water inlet 6, and the water in the second heat storage pipe body 8 is discharged to the outside through the second water outlet 7.

[0036] A heat preservation box cover plate 2 is snap-fitted and installed at the top end of the heat preservation box body 1. A toughened glass plate 14 is fixedly installed at the bottom end of the heat preservation box cover plate 2. A transparent heat preservation board 13 is fixedly installed at the bottom end of the toughened glass plate 14. The bottom end of the transparent heat preservation board 13 is in contact connection with one side opposite to the first heat storage pipe body 12. The transparent heat preservation board 13 is made of polycarbonate material. The transparent heat preservation board 13 is a double-layer hollow structure with a thickness of 7.8 mm. The toughened glass plate 14 is a colorless low-iron toughened glass with a thickness of 3.2 mm.

[0037] The thickness of the periphery and the bottom of the heat preservation box body 1 is 40 - 60 mm. The length, width and height of the heat preservation box body 1 are 2000×820×205 mm respectively.

[0038] The water storage pipe capacities of several first heat storage pipe bodies 12 and several second heat storage pipe bodies 8 are both 150 L.

[0039] In the present invention, after the servo motor 102 is powered on, it starts. The servo motor 102 drives the screw rod 107 to rotate. The thread on the surface of the screw rod 107 matches the thread on the inner wall of the height block 106. The height block 106 is limited by the length rod 101. Therefore, the height block 106 slides along the screw rod 107. During the sliding process of the height block 106, the height of the angle seat 103 is adjusted. The angle seat 103 drives the push rod 104 to move synchronously. The push rod 104 pushes the sliding block 105 from one side. The sliding block 105 drives the extended heat preservation shell 3 to slide relative to the sliding groove 11, and adjusts the area of the extended heat preservation shell 3 relative to the heat preservation box body 1. The external water supply device injects water into the first heat storage pipe body 12 through the first water inlet 4. The water in the first heat storage pipe body 12 is discharged through the first water outlet 5. The external water supply device injects water into the second heat storage pipe body 8 through the second water inlet 6. The water in the second heat storage pipe body 8 is discharged to the outside through the second water outlet 7. The first heat storage pipe body 12 and the second heat storage pipe body 8 collect and store heat. The heat storage coating film 15 is coated on the outside to improve the heat collection and storage effect.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flat-panel integrated centralized solar water heater, comprising a bracket (9), characterized in that: One side of the bracket (9) is fixedly installed with a heat preservation box body (1). Slide grooves (11) are formed on both sides of the heat preservation box body (1). Extended heat preservation shells (3) are slidably connected inside the two slide grooves (11). A number of first heat storage pipe bodies (12) are fixedly installed inside the heat preservation box body (1). A number of second heat storage pipe bodies (8) are fixedly installed inside the two extended heat preservation shells (3). A heat preservation box cover plate (2) is snap-fitted on the top end of the heat preservation box body (1). Heat storage coating films (15) are laid on the outer sides of the number of first heat storage pipe bodies (12) and the outer sides of the number of second heat storage pipe bodies (8). The heat storage coating film (15) includes a protective film (151), a nano fluorocarbon layer (152), a fluorocarbon coloring layer (153), a fluorocarbon sealing layer (154), a resin epoxy layer (155), an adhesive (156), and a flame-retardant heat preservation board (157). A pushing mechanism (10) is fixedly installed in the middle of the bracket (9). The pushing mechanism (10) includes a screw rod (107) and two angle seats (103). A length rod (101) is arranged on one side of the screw rod (107). A height block (106) with which the length rod (101) is slidably connected is threadedly connected to the middle of the screw rod (107). The two sides of the height block (106) are respectively fixedly connected to one side of the two angle seats (103).

2. The integrated flat-plate centralized solar water heater according to claim 1, characterized in that: The bottom end of the protective film (151) is fixedly connected to the top end of the nano fluorocarbon layer (152). The bottom end of the nano fluorocarbon layer (152) is fixedly connected to the top end of the fluorocarbon coloring layer (153). The bottom end of the fluorocarbon coloring layer (153) is fixedly connected to the top end of the fluorocarbon sealing layer (154). The bottom end of the fluorocarbon sealing layer (154) is fixedly connected to the top end of the resin epoxy layer (155). The bottom end of the resin epoxy layer (155) is adhesively connected to the top end of the adhesive (156). The bottom end of the adhesive (156) is adhesively connected to the top end of the flame-retardant heat preservation board (157).

3. A flat-panel integrated centralized solar water heater according to claim 1, characterized in that: The bottom ends of a part of the flame-retardant heat preservation boards (157) are respectively fixedly connected to the number of first heat storage pipe bodies (12). The bottom ends of the other part of the flame-retardant heat preservation boards (157) are respectively fixedly connected to the number of second heat storage pipe bodies (8).

4. A flat-panel integrated centralized solar water heater according to claim 1, characterized in that: The adhesive (156) is made of a high-performance aircraft special structural adhesive glue material. The flame-retardant heat preservation board (157) is made of an XPS board material.

5. A flat-panel integrated centralized solar water heater according to claim 1, characterized in that: Push rods (104) are rotatably connected inside the two angle seats (103). The top ends of the two push rods (104) are rotatably connected to sliding blocks (105). The top ends of the two sliding blocks (105) are respectively slidably connected to the bottom ends of the two extended heat preservation shells (3).

6. A flat-panel integrated centralized solar water heater according to claim 1, characterized in that: The bottom end of the length rod (101) is fixedly connected to the bracket (9). A servo motor (102) is fixedly installed on the bracket (9) and located on one side of the length rod (101). The output end of the servo motor (102) is fixedly connected to the end of the screw rod (107) opposite thereto.

7. A flat-panel integrated centralized solar water heater according to claim 1, characterized in that: A first water inlet (4) is formed on the surface of the incubator body (1), and a first water outlet (5) is formed on the incubator body (1) and located on one side of the first water inlet (4). Second water inlets (6) are formed on the surfaces of the two extended insulation shells (3), and second water outlets (7) are formed on the two extended insulation shells (3) and located on one side of the second water inlets (6).

8. A flat-panel integrated centralized solar water heater according to claim 1, characterized in that: A incubator cover plate (2) is snap-fitted and installed at the top end of the incubator body (1). A toughened glass plate (14) is fixedly installed at the bottom end of the incubator cover plate (2). A transparent insulation board (13) is fixedly installed at the bottom end of the toughened glass plate (14). The bottom end of the transparent insulation board (13) is in contact connection with the side opposite to the first heat storage pipe body (12). The transparent insulation board (13) is made of polycarbonate material.

9. The integrated flat-plate centralized solar water heater according to claim 1, wherein: The thickness of the periphery and the bottom of the incubator body (1) is 40 - 60 mm, and the length, width and height of the incubator body (1) are 2000×820×205 mm respectively.

10. A flat-panel integrated centralized solar water heater according to claim 1, characterized in that: The water storage pipe capacities of a plurality of the first heat storage pipe bodies (12) and a plurality of the second heat storage pipe bodies (8) are both 150 L.

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