Solar heat collection washing system

Abstract

The utility model discloses a solar heat collection object washing system which comprises a solar hot water heat collector, the solar hot water heat collector communicates with washing equipment, and the solar hot air heat collector communicates with drying equipment. At least one of the solar steam heat collector, the hot oil steam generator communicated with the solar hot oil heat collector and the hot water steam generator is communicated with the ironing equipment. The solar energy washing system has the beneficial effects that solar radiation energy is directly utilized by the solar energy technology, solar energy is converted into hot water, hot air, hot oil or steam needed by the washing system, green and environment-friendly heat source supply is provided for the washing system, washing energy consumption is remarkably reduced, and the solar energy washing system has the advantages of environmental protection and economy.

Description

Technical Field

[0001] This application belongs to the field of industrial washing technology, specifically relating to a solar-powered washing system. Background Technology

[0002] The industrialized laundry industry (such as the cleaning of linens in large hotels, the disinfection of medical textiles, and the treatment of industrial uniforms) is a typical high-energy-consuming field. Its core processes include washing, drying, ironing, and steam disinfection, all of which require a large amount of heat and electricity. Traditional energy sources such as natural gas, coal-fired boilers, or electric heating equipment are its main heat sources.

[0003] The existing energy supply has limitations: poor economic efficiency: fossil energy prices fluctuate significantly, and steam boilers have high maintenance costs and rapid equipment depreciation; environmental pressure: pollutants such as carbon dioxide and sulfides emitted by coal-fired or gas-fired boilers exacerbate the environmental burden and make it difficult to meet carbon reduction targets; low energy efficiency: traditional heat sources have heat losses (such as pipeline transmission losses), and the overall energy efficiency is only 50%-70%.

[0004] The development of solar energy technology in the field of industrial heat utilization has provided the laundry industry with a clean and sustainable energy alternative. Utility Model Content

[0005] The purpose of this application is to provide a solar thermal washing system that solves the problems of high energy consumption and heavy pollution in traditional washing systems.

[0006] The objective of this application is achieved through the following technical solution:

[0007] A solar thermal washing system includes a solar hot water collector connected to a washing device, a solar hot air collector connected to a drying device, and at least one of a solar steam collector, a solar hot oil collector, a hot oil steam generator, and a hot water steam generator connected to an ironing device.

[0008] Furthermore, the solar water heater includes a hot water insulation tank, which is equipped with a hot water inlet pipe and a hot water outlet pipe. The hot water inlet pipe is connected to one end of several hot water flow pipes, and the hot water outlet pipe is connected to the other end of several hot water flow pipes. The upper surface of the heat collection substrate is provided with a heat-absorbing blue film, and the lower surface of the heat collection substrate is provided with a substrate tube groove. The upper surface of the heat transfer clamp is provided with a clamp tube groove. The heat collection substrate is connected to the heat transfer clamp, and hot water flow pipes are matched and clamped between the substrate tube groove and the clamp tube groove.

[0009] Furthermore, the solar water heater is connected to a cold water storage tank, a low-temperature hot water storage tank, a high-temperature hot water storage tank, a washing equipment, a return water tank, and a cold water storage tank.

[0010] Furthermore, the solar hot air collector includes a hot air insulation box and a bottom substrate therein. The upper surface of the bottom substrate is provided with a surface blue film. The hot air insulation box is provided with an air inlet channel and an air outlet channel. The air inlet channel is provided with an air outlet hole, and the air outlet channel is provided with an air inlet hole. A heat collection air duct located on the lower surface of the bottom substrate is formed between the air outlet hole and the air inlet hole.

[0011] Furthermore, the air intake channel has an L-shaped structure, with one end located on the left side of the hot air insulation box and flush with the side, and the other end located on the front side of the hot air insulation box and flush with the side. The air outlet channel has a straight structure, located on the right side of the hot air insulation box and flush with the side. The air intake channel is connected to the air intake pipe connector, which extends from the lower right corner of the hot air insulation box. The air outlet channel is connected to the air outlet pipe connector, which extends from the upper right corner of the hot air insulation box.

[0012] Furthermore, the high-temperature hot water storage tank connected to the rear end of the solar water heater is connected to at least one of the solar steam collector, the hot oil steam generator, and the water steam generator.

[0013] Furthermore, the solar hot oil collector includes a hot oil insulation box and a hot oil main pipe inside it. A heat collection fin is provided on the side of the hot oil main pipe. A heat collection blue film is provided on the upper surface of the hot oil main pipe and the heat collection fin. A diversion hole is provided at both the inlet and outlet of the hot oil main pipe. A diversion cavity along the pipe direction is provided inside the heat collection fin. The diversion holes at both ends are respectively connected to the two ends of the diversion cavity. A flow-blocking structure is provided in the hot oil main pipe relative to the diversion hole at the inlet end along the flow direction.

[0014] Furthermore, the flow-blocking structure includes a flow-blocking protrusion and a flow-blocking ball, with the flow-blocking protrusion located on the hot oil main pipe and the flow-blocking ball positioned along the pipe from front to back.

[0015] Furthermore, the middle part of the diversion cavity is provided with an inner partition plate arranged along the pipe direction, which divides the middle part of the diversion cavity into at least two unit cavities.

[0016] Furthermore, the solar thermal oil collector's oil supply pipe is connected to the primary thermal oil storage tank, the primary thermal oil storage tank is connected to the secondary thermal oil storage tank, the secondary thermal oil storage tank is connected to the thermal oil steam generator, and the return pipe of the thermal oil steam generator passes through the secondary thermal oil storage tank and the primary thermal oil storage tank before connecting to the solar thermal oil collector.

[0017] The beneficial effects of this application are:

[0018] (1) Solar energy technology directly utilizes solar radiation energy to convert solar energy into hot water, hot air, hot oil or steam required by the washing system, providing a green and environmentally friendly heat source for the washing system, significantly reducing washing energy consumption, and having both environmental and economic advantages.

[0019] (2) A sandwich structure is adopted in which the hot water flow pipe is fixed by the heat collection substrate and the heat transfer clamp. Through the heat transfer transition effect of the heat transfer clamp, the heat receiving area of ​​the hot water flow pipe is increased, and the heat of the heat collection substrate can be effectively transferred to the medium in the flow pipe, thereby improving the heat collection effect.

[0020] (3) A heat collection duct is formed inside the solar hot air collector. Cold air enters the heat preservation box and absorbs the heat obtained by the solar energy inside the heat preservation box through the heat collection duct. The cold air is transformed into hot air and sent out of the heat preservation box, providing green and environmentally friendly hot air for subsequent drying, drying and heating processes.

[0021] (4) In the solar hydrothermal collector, a diversion cavity is opened inside the heat collector fin plate to divert the medium fluid in the hot oil main pipe to the diversion cavity. The medium in the diversion cavity is in direct contact with the heat collector fin plate, which increases the contact area between the medium and the heat collector fin plate, realizes sufficient heat exchange between the medium and the heat collector fin plate, and improves the heat collection effect.

[0022] The aforementioned main solution and its various further alternatives can be freely combined to form multiple solutions, all of which are solutions that can be adopted and are claimed in this application; furthermore, the (non-conflicting alternatives) can also be freely combined with each other and with other alternatives. Those skilled in the art, after understanding the solution of this application, will realize from the prior art and common general knowledge that there are many combinations, all of which are technical solutions to be protected by this application, and will not be exhaustively listed here. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this application.

[0024] Figure 2 This is a partial structural assembly drawing of the solar water heater collector core in this application.

[0025] Figure 3 This is a partial structural disassembly diagram of the solar water heater collector core in this application.

[0026] Figure 4 This is a schematic diagram of the overall structure of the solar water heater collector core in this application.

[0027] Figure 5 This is a schematic diagram of the back structure of the solar water heater collector substrate in this application.

[0028] Figure 6This is a schematic diagram of the side structure of the solar water heater collector substrate of this application.

[0029] Figure 7 This is a schematic diagram of the overall structure of the solar water heater collector in this application.

[0030] Figure 8 This is a top view of the internal structure of the solar hot air collector of this application.

[0031] Figure 9 This is a top view of the external structure of the solar hot air collector in this application.

[0032] Figure 10 This is a bottom view of the air inlet and outlet channels of the solar hot air collector in this application.

[0033] Figure 11 This is a cross-sectional view of the air inlet and outlet channels of the solar hot air collector in this application.

[0034] Figure 12 This is a schematic diagram of the internal structure of the solar hydrothermal collector in this application.

[0035] Figure 13 This is a schematic diagram of the overall structure of the solar hydrothermal collector in this application.

[0036] Figure 14 This is a front view of the structure of the solar hydrothermal collector core in this application.

[0037] Figure 15 This is a top view of the structure of the solar hydrothermal collector core in this application.

[0038] Figure 16 This is a top view of the structure of the collector core of the solar hydrothermal collector in this application.

[0039] Figure 17 This is a schematic diagram of the flow-blocking structure in the core of the solar hydrothermal collector plate of this application.

[0040] In the diagram: 1-Solar water heater collector, 2-Washing equipment, 3-Solar hot oil collector, 4-Solar steam collector, 5-Ironing equipment, 6-Solar hot air collector, 7-Drying equipment, 8-Hot oil steam generator, 9-Hot water steam generator; 101-Hot water insulation tank, 102-Hot water inlet pipe, 103-Hot water outlet pipe, 104-Collector substrate, 105-Heat-absorbing blue film, 106-Heat transfer clamp, 107-Hot water flow pipe, 108-Laser welding point, 109-Substrate tube groove, 110-Clamping plate tube groove; 201-Cold water storage tank, 202-Low temperature hot water storage tank, 203-High temperature hot water storage tank, 204- Return water tank; 301-Hot oil insulation box, 302-Hot oil inlet pipe, 303-Hot oil outlet pipe, 304-Hot oil main pipe, 305-Heat collector fin plate, 306-Heat collector blue film, 307-Flow-blocking protrusion, 308-Flow-blocking ball, 309-Flow-diverting hole, 310-Flow-diverting cavity, 311-Inner partition plate, 312-Unit cavity; 601-Hot air insulation box, 602-Bottom substrate, 603-Surface blue film, 604-Air inlet channel, 605-Air outlet channel, 606-Air inlet pipe connector, 607-Air outlet pipe connector, 608-Air outlet, 609-Air inlet; 801-Primary heat transfer oil storage tank, 802-Secondary heat transfer oil storage tank. Detailed Implementation

[0041] The following non-limiting embodiments are used to illustrate this application.

[0042] Example 1

[0043] refer to Figure 1 As shown, a solar thermal washing system includes a solar hot water collector 1, a washing device 2, a solar hot air collector 6, a drying device 7, a solar steam collector 4, a solar hot oil collector 3, a hot oil steam generator 8, a hot water steam generator 9, and an ironing device 5.

[0044] Solar water heater 1 provides hot water and is connected to washing equipment 2, which washes clothes and other items. The hot water provided is used directly for washing. Solar hot air collector 6 provides hot air and is connected to drying equipment 7, which uses the hot air from the collector to dry clothes and other items.

[0045] The solar steam collector 4 and the solar hot oil collector 3 are connected to the hot oil steam generator 8 and the hot water steam generator 9, respectively, and are all connected to the ironing equipment 5. The solar steam collector 4 directly generates steam using solar energy, the solar hot oil collector 3 provides hot oil, the hot oil steam generator 8 generates steam using hot oil, and the hot water steam generator 9 generates steam using electric heating, biological pellets, or other methods. The ironing equipment 5 uses the steam generated by these various methods to iron and disinfect clothing and other items.

[0046] The solar water heater 1 is connected to the cold water storage tank 201, the solar water heater 1 is connected to the low temperature hot water storage tank 202, the low temperature hot water storage tank 202 is connected to the high temperature hot water storage tank 203, the high temperature hot water storage tank 203 is connected to the water washing equipment 2, the water washing equipment 2 is connected to the return water pool 204, and the return water pool 204 is connected to the cold water storage tank 201.

[0047] The cold water storage tank 201 stores cold water, which can be supplied as tap water or as cold water recycled in the return water tank 204. The cold water is fed into the solar water heater 1 for heating, and the heated water first enters the low-temperature hot water storage tank 202. Both the low-temperature hot water storage tank 202 and the high-temperature hot water storage tank 203 are equipped with built-in electric heaters. When the water temperature in the low-temperature hot water storage tank 202 reaches the standard, the hot water is sent to the high-temperature hot water storage tank 203; if the water temperature is not yet at the standard, it is heated until the standard is reached. When the water temperature in the high-temperature hot water storage tank 203 reaches the standard, the hot water is sent to the washing equipment 2; if the water temperature is not yet at the standard, it is heated until the standard is reached. Wastewater from the washing equipment 2 is collected and recycled through the return water tank 204, recovering heat and water resources from the wastewater.

[0048] refer to Figures 2-7 As shown, the solar water heater collector 1 includes a hot water insulation tank 101, a hot water inlet pipe 102, a hot water outlet pipe 103, a heat collection substrate 104, a heat-absorbing blue film 105, a heat transfer clamping plate 106, a hot water flow pipe 107, a laser welding point 108, a substrate tube groove 109, and a clamping plate tube groove 110.

[0049] The transparent glass plate is located on the sun-facing side of the hot water insulation tank 101. The heat-absorbing blue film 105 is opposite to the transparent glass plate. Sunlight shines through the transparent glass plate onto the heat-absorbing blue film 105. The heat-absorbing blue film 105 absorbs the heat energy of the sunlight and gradually heats the medium through the heat collection substrate 104, the heat transfer clamp 106, and the hot water flow pipe 107.

[0050] A hot water inlet pipe 102 and a hot water outlet pipe 103 are each provided and located on both sides of the hot water insulation tank 101. The hot water inlet pipe 102 is welded to one end of several hot water flow pipes 107, and the hot water outlet pipe 103 is welded to the other end of several hot water flow pipes 107. The low-temperature medium enters from the hot water inlet pipe 102, then flows into the multiple hot water flow pipes 107 to absorb heat, and then flows back to the hot water outlet pipe 103 for discharge.

[0051] Both the hot water inlet pipe 102 and the hot water outlet pipe 103 are equipped with pipe fittings extending out of the hot water insulation tank 101 for pipeline connection, ensuring normal flow of the medium. The collectors can be used in parallel, in which case pipe fittings are welded to both ends of the hot water inlet pipe 102 and the hot water outlet pipe 103 to achieve parallel connection. For collectors used alone or at the parallel end, the pipe fittings on the hot water inlet pipe 102 or the hot water outlet pipe 103 need to be sealed, or plugs need to be directly welded on.

[0052] The heat collection substrate 104 is made of aluminum alloy, with a thickness of 0.2–0.3 mm and a length of (2–4 m) * (0.5–2 m), exhibiting good thermal conductivity and structural strength. A substrate tube groove 109 is provided on the lower surface of the heat collection substrate 104, which is used for the matching and placement of the upper part of the hot water flow pipe 107. Excluding the substrate tube groove 109, the heat collection substrate 104 has a flat plate structure, ensuring that it has a large sun-facing heat collection surface. The heat collection substrate 104 is a one-piece die-cast structure, which is convenient to process and manufacture, and has high overall strength.

[0053] The upper surface of the heat collection substrate 104 is provided with a heat-absorbing blue film 105. The heat-absorbing blue film is a solar selective absorption vacuum coating. It is deposited on the metal substrate using physical vapor deposition technology and vacuum magnetron sputtering method. It belongs to the new generation of solar energy utilization technology. It has an extremely high absorption rate of solar radiation energy and its own emissivity is very low, which can effectively improve the solar thermal conversion efficiency.

[0054] The heat transfer clamp 106 is made of aluminum alloy with a thickness of 0.3–0.5 mm and dimensions of (1.5–3.5 m) * (30–40 mm). It possesses good thermal conductivity and structural strength. The upper surface of the heat transfer clamp 106 is provided with a clamping tube groove 110, which is used for the matching and placement of the lower part of the hot water flow pipe 107. Excluding the clamping tube groove 110, the heat transfer clamp 106 has a flat plate structure, enabling a close fit with the heat collection substrate 104 to increase the heat transfer path. The heat transfer clamp 106 is an integral die-cast structure, which is convenient to manufacture and has high overall strength.

[0055] The heat collection substrate 104 is bonded to the heat transfer clamp 106, and a hot water flow pipe 107 is clamped between the substrate groove 109 and the clamp groove 110. The heat from the heat collection substrate 104 can be directly transferred to the hot water flow pipe 107. At the same time, the heat from the heat collection substrate 104 can also be transferred to the hot water flow pipe 107 through the heat transfer clamp 106, thereby increasing the heating surface of the hot water flow pipe 107 and ensuring that the heat on the heat collection substrate 104 is quickly and effectively transferred to the medium.

[0056] The hot water flow pipe 107 is made of stainless steel with a diameter of 6-10mm, resulting in lower manufacturing costs while ensuring good thermal conductivity and structural strength. A low-temperature medium flows inside the hot water flow pipe 107, absorbing heat from the heat collection substrate 104 and then dissipating it. The low-temperature medium can be cold oil or cold water, or other cool liquids. Under special operating conditions, cold air can also be introduced, and the outlet temperature of the medium can reach 55-85℃.

[0057] The heat collection substrate 104 is provided with a plurality of substrate tube grooves 109 (seven in this embodiment), which are arranged at equal intervals. The heat transfer clamp 106 is provided with a plurality of blocks (seven in total) equal to the number of substrate tube grooves 109. The clamp groove 110 is located in the middle of the heat transfer clamp 106. The hot water flow pipes 107 are provided with a plurality of pipes (seven in total) equal to the number of substrate tube grooves 109. Thus, by cooperating with multiple heat transfer clamps 106 on a heat collection substrate 104, multiple hot water flow pipes 107 are arranged to absorb the heat on the entire heat collection substrate 104, ensuring uniform and sufficient heating.

[0058] The base plate groove 109 is an arc-shaped groove that matches the hot water flow pipe 107, achieving a close fit between the base plate groove 109 and the upper part of the hot water flow pipe 107. The clamping plate groove 110 is a V-shaped groove, and the bottom of the clamping plate groove 110 is an arc-shaped groove bottom that matches the hot water flow pipe 107, achieving a close fit between the clamping plate groove 110 and the lower part of the hot water flow pipe 107.

[0059] The depth of the substrate tube groove 109 is less than the radius of the flow tube, while the depth of the clamping plate tube groove 110 is greater than the radius of the flow tube. That is, the clamping plate tube groove 110 accommodates most of the flow tube, while the substrate tube groove 109 accommodates a small part of the flow tube, thereby reducing the die-casting difficulty of the heat collection substrate 104. At the same time, the clamping plate tube groove 110 is a V-shaped groove, which optimizes the corner structure of the groove plate and also reduces the die-casting difficulty of the heat transfer clamping plate 106.

[0060] The heat collection substrate 104 and the heat transfer clamp 106 are connected by laser welding points 108. The laser welding points 108 are located on both sides of the hot water flow pipe 107 and are arranged at equal intervals along the flow pipe direction to realize the fixed connection between the heat collection substrate 104 and the heat transfer clamp 106, thereby ensuring that the hot water flow pipe 107 is attached and fixed between the two.

[0061] The high-temperature hot water storage tank 203, connected to the rear end of the solar water heater collector 1, is connected to the solar steam collector 4, the hot oil steam generator 8, and the hot water steam generator 9. This means the hot water in the high-temperature hot water storage tank 203 is not only used for washing but also provides a heat source for steam generation, ensuring stable steam production. Similarly, the steam generated by the solar steam collector 4 and the hot water steam generator 9 can also be supplied to the high-temperature hot water storage tank 203 to heat the water inside. The solar steam collector 4 directly generates steam using solar radiation, the hot oil steam generator 8 generates steam through hot oil, and the hot water steam generator 9 generates steam through electric heating, biological pellets, or other methods.

[0062] refer to Figures 8-11As shown, the solar hot air collector 6 includes a hot air insulation box 601, a bottom substrate 602, a surface blue film 603, an air inlet channel 604, an air outlet channel 605, an air inlet pipe connector 606, an air outlet pipe connector 607, an air outlet 608, and an air inlet 609.

[0063] The hot air insulation box 601 is a rectangular box structure used to house other components, reducing internal heat loss and increasing heat absorption by the gas inside. Due to internal ventilation, the hot air insulation box 601 needs to maintain good sealing. A transparent glass panel serves as the window of the hot air insulation box 601, also providing insulation while allowing sunlight to pass through.

[0064] The hot air insulation box 601 is provided with a bottom substrate 602. The bottom substrate 602 is used to provide a flat and smooth surface to realize the coating of the heat collection film. At the same time, the bottom substrate 602 is also used to transfer the heat absorbed by the surface heat collection film to the gas on the lower surface.

[0065] The bottom substrate 602 is made of aluminum alloy, which has good thermal conductivity and structural strength. The bottom substrate 602 is a flat plate structure or a flat plate structure with several arc-shaped protrusions to ensure a flat and smooth plate structure, which is convenient for processing and manufacturing, as well as for coating the heat collection film, and is also conducive to forming a large area of ​​heat collection surface.

[0066] The upper surface of the bottom substrate 602 is provided with a surface blue film 603 opposite to the transparent glass plate. The surface blue film is a solar selective absorption vacuum coating, which is deposited on the metal substrate using physical vapor deposition technology and vacuum magnetron sputtering method. It belongs to the new generation of solar energy utilization technology, has an extremely high absorption rate of solar radiation energy, and has a very low emissivity, which can effectively improve the solar thermal conversion efficiency.

[0067] The hot air insulation box 601 is internally equipped with an air inlet channel 604 and an air outlet channel 605. The air inlet channel 604 is used to send cold air into the box, and the air outlet channel 605 is used to send the heat-absorbing hot air out of the box. The air inlet channel 604 is provided with an air outlet 608, through which cold air is dispersed into the heat collection duct for heat absorption. The air outlet channel 605 is provided with an air inlet 609, through which hot air is collected from the heat collection duct and flows back for other uses.

[0068] A heat collection air channel is formed between the air outlet 608 and the air inlet 609 on the lower surface of the bottom substrate 602. After the gas enters the box, it needs to flow through the heat collection air channel. During this process, the gas comes into contact with the lower surface of the bottom substrate 602 to achieve heating, and the heat absorbed by the heat collection film is transferred to the gas. The gas discharge temperature reaches 85-110°C.

[0069] Both the intake channel 604 and the exhaust channel 605 are made of aluminum alloy, which reduces manufacturing cost while ensuring good thermal conductivity and structural strength. Both the intake channel 604 and the exhaust channel 605 are rectangular pipes, providing a large flow cross-section within the housing to handle large volumes of gas.

[0070] The air intake channel 604 has an L-shaped structure. One end (left end) of the air intake channel 604 is located on the left side of the hot air insulation box 601 and is flush with the side. The other end (front end) of the air intake channel 604 is located on the front side of the hot air insulation box 601 and is flush with the side. The air outlet channel 605 has a straight structure and is located on the right side of the hot air insulation box 601 and is flush with the side. This arrangement of the air intake channel 604 and the air outlet channel 605 within the rectangular box facilitates air intake and exhaust from the same side.

[0071] The right end of the other end (front end) of the air inlet channel 604 is connected to the air inlet pipe connector 606, which extends from the lower right corner of the hot air insulation box 601. The upper end of the air outlet channel 605 is connected to the air outlet pipe connector 607, which extends from the upper right corner of the hot air insulation box 601. This arrangement allows air to enter from the lower right end and exit from the upper right end, conforming to the arrangement of air inlet and outlet pipe connectors in most solar collectors, ensuring the versatility of the device.

[0072] The air intake channel 604 is provided with several air outlets 608 arranged at equal intervals, and the air outlet channel 605 is provided with several air inlets 609 arranged at equal intervals, so as to achieve uniform dispersion or convergence of gas. The air outlets 608 and air inlets 609 are arranged opposite to each other, which ensures direct flow between the air outlets 608 and air inlets 609, with a short and unobstructed path.

[0073] The oil supply pipe of the solar thermal oil collector 3 is connected to the primary thermal oil storage tank 801. The primary thermal oil storage tank 801 is connected to the secondary thermal oil storage tank 802. The secondary thermal oil storage tank 802 is connected to the thermal oil steam generator 8. The return pipe of the thermal oil steam generator 8 passes through the secondary thermal oil storage tank 802 and the primary thermal oil storage tank 801 before connecting to the solar thermal oil collector 3.

[0074] The solar thermal oil collector 3 and the primary thermal oil storage tank 801 form a circulation loop, enabling the thermal oil to continuously pass through the collector for heating. Once the oil temperature in the primary storage tank 801 reaches the standard, it is sent to the secondary storage tank 802 for energy storage. When the thermal oil steam generator needs oil supply, the secondary storage tank 802 directly supplies oil to the generator. Cold oil can be sent back to the secondary storage tank 802, which has a built-in electric heater to heat the thermal oil, achieving an electrically heated thermal oil supply. Cold oil can also flow back to the primary storage tank 801 and continue to circulate and be heated by the collector.

[0075] refer to Figures 11-17 As shown, the solar hot oil collector 3 includes a hot oil insulation box 301, a hot oil inlet pipe 302, a hot oil outlet pipe 303, a hot oil main pipe 304, a heat collection fin plate 305, a heat collection blue film 306, a flow-blocking structure (flow-blocking protrusions 307 and flow-blocking balls 308), a flow-diverting hole 309, a flow-diverting cavity 310, an inner partition plate 311, and a unit cavity 312.

[0076] The hot oil main pipe 304 is made of aluminum alloy, with a diameter of 4–8 mm and a wall thickness of 0.4–0.8 mm. It is used for the flow and heat absorption of the medium, which can be heat transfer oil or other fluids. A heat collector fin 305, also made of aluminum alloy, is located on the side of the hot oil main pipe 304. The fin 305 has a width of 35–45 mm and a thickness of 0.4–0.8 mm. The heat collector fin 305 is used to expand the solar energy receiving area to absorb as much solar energy as possible.

[0077] The hot oil main pipe 304 and the heat collector vane 305 are integrally extruded aluminum alloy, facilitating processing and manufacturing. The length of the hot oil main pipe 304 is greater than the length of the heat collector vane 305, allowing the hot oil main pipe 304 to extend outwards at both ends. Heat collector vanes 305 are provided on both sides of the hot oil main pipe 304, symmetrically arranged, with the hot oil main pipe 304 positioned in the middle to support the heat collector vanes 305 on both sides.

[0078] The upper surface of the hot oil main pipe 304 and the heat collector fin plate 305 is provided with a heat-collecting blue film 306. The heat-collecting blue film is a solar selective absorption vacuum coating. It is deposited on a metal substrate using physical vapor deposition technology and vacuum magnetron sputtering method. It belongs to a new generation of solar energy utilization technology. It has an extremely high absorption rate of solar radiation energy and its own emissivity is very low, which can effectively improve the solar thermal conversion efficiency. The heat absorbed by the blue film is directly transferred to the hot oil main pipe 304 and the heat collector fin plate 305.

[0079] Both the inlet and outlet ends of the hot oil main pipe 304 are provided with diversion holes 309 located on both sides of the pipe wall. The heat collecting vanes 305 on both sides are provided with diversion cavities 310 along the pipe direction. The diversion holes 309 at both ends are connected to the two ends of the diversion cavities 310 respectively. The width of the diversion cavity 310 is 25-35mm, which does not completely occupy the width of the heat collecting vanes 305, and the height of the cavity is 2.5-3.5mm.

[0080] The medium enters the hot oil main pipe 304 from the inlet end, and then flows to both sides through the diversion hole at the inlet end into the diversion chamber 310. Within the diversion chamber 310, it flows backward, and then converges again into the hot oil main pipe 304 through the diversion hole at the outlet end, and is discharged from the outlet end. The arrangement of the diversion chamber 310 increases the flow channel for the medium, achieving direct contact between the medium and the heat collection fins 305, greatly increasing the heat exchange area and improving the overall heat exchange and heat transfer effect of the plate core. The medium discharge temperature reaches 100–130℃.

[0081] The hot oil main pipe 304 is provided with a flow-blocking structure with a flow-blocking hole 309 at the inlet end and a flow-blocking structure at the rear of the flow direction. The flow-blocking structure is used to obstruct the fluid in the hot oil main pipe 304, so that the medium can be diverted from the flow-blocking hole 309 to the flow-blocking cavity 310, instead of passing directly through the hot oil main pipe 304.

[0082] The flow-blocking structure either completely encloses the hot oil main pipe 304 or leaves a flow-diverting gap. That is, if the flow-blocking structure completely encloses the hot oil main pipe 304, the medium flows only through the heat-collecting fins 305 without passing through the middle section of the hot oil main pipe 304. This method wastes the heat exchange area of ​​the middle section of the hot oil main pipe 304. Alternatively, the flow-blocking structure does not completely enclose the hot oil main pipe 304; some of the medium still flows through the middle section of the hot oil main pipe 304 through the flow-diverting gap to absorb heat, achieving reasonable medium flow diversion and sufficient heat exchange.

[0083] The upper surface of the heat collector vane 305 is flat, facilitating manufacturing and the coating of the heat-collecting blue film to form a large-area heat-absorbing surface. The outer side of the lower surface of the heat collector vane 305 is flat, maintaining the straight plate structure of the outer side of the vane. The inner side of the lower surface of the heat collector vane 305 has a boss, which is the protruding space of the internal flow distribution cavity. The lower surface of the boss is flush with the lower end of the main pipe, and the outer side of the boss transitions to the outer flat surface through an arc, facilitating manufacturing and ensuring structural strength. The outer side of the heat collector vane 305 has an integrally extended downward-facing flange, which acts as a rib to improve structural strength.

[0084] The flow-blocking structure includes a flow-blocking protrusion 307 and a flow-blocking ball 308. The flow-blocking protrusion 307 is located on the hot oil main pipe 304, and the flow-blocking ball 308 is clamped along the pipe from front to back. That is, the flow-blocking protrusion 307 is a protruding pipe wall pressed into the pipe, which limits the flow-blocking ball 308 from front to back, ensuring the flow-blocking effect of the ball under fluid impact. The flow-blocking ball is a steel ball, and the diameter of the flow-blocking ball 308 is smaller than the inner diameter of the hot oil main pipe 304, thus leaving a flow-dividing gap.

[0085] The middle part of the flow distribution cavity 310 is provided with an inner baffle 311 arranged along the pipe direction. The inner baffle 311 and the heat collection fin plate 305 are integral structures of the same material. The inner baffle 311 divides the middle part of the flow distribution cavity 310 into at least two unit cavities 312. In this example, there are two unit cavities 312. The unit cavities 312 further divide the medium in the flow distribution cavity 310 to ensure uniform and stable internal medium flow and ensure good heat transfer effect.

[0086] One hot oil inlet pipe 302 and one hot oil outlet pipe 303 are respectively located on both sides of the hot oil insulation box 301. The hot oil inlet pipe 302 is welded to one end of several hot oil main pipes 304, and the hot oil outlet pipe 303 is welded to the other end of several hot oil main pipes 304. The low-temperature medium enters from the hot oil inlet pipe 302, then flows into the multiple hot oil main pipes 304 and their heat collecting fins 305 to absorb heat, and then flows back to the hot oil outlet pipe 303 for discharge.

[0087] The heat-collecting blue film 306 is opposite to the transparent glass plate of the hot oil insulation box 301. Sunlight shines on the heat-collecting blue film 306 through the transparent glass plate. The heat-collecting blue film 306 absorbs the heat energy of the sunlight and directly contacts the medium through the hot oil main pipe 304 and the heat-collecting fin plate 305 to achieve full heating of the medium.

[0088] Both the hot oil inlet pipe 302 and the hot oil outlet pipe 303 are equipped with pipe fittings extending out of the hot oil insulation box 301. These are used for pipeline connection to ensure normal flow of the medium. If the collectors can be used in parallel, pipe fittings are welded to both ends of the hot oil inlet pipe 302 and the hot oil outlet pipe 303 to achieve parallel connection. For collectors used alone or in parallel connections, the pipe fittings on the hot oil inlet pipe 302 or the hot oil outlet pipe 303 need to be sealed or plugged directly.

[0089] The foregoing basic examples and their further alternative examples can be freely combined to form multiple embodiments, all of which are embodiments that can be adopted and claimed in this application. In the scheme of this application, each alternative example can be arbitrarily combined with any other basic example and alternative example.

[0090] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A solar thermal washing system comprising a solar water heating collector (1), characterised in that: The solar hot water collector (1) is communicated with the water washing equipment (2), the solar hot air collector (6) is communicated with the drying equipment (7), and at least one of the solar steam collector (4), the solar hot oil collector (3), the hot oil steam generator (8) and the hot water steam generator (9) communicated with the ironing equipment (5).

2. The solar thermal washing system of claim 1, wherein: The solar hot water collector (1) comprises a hot water insulation box (101), a hot water inlet pipe (102) and a hot water outlet pipe (103) are arranged in the hot water insulation box (101), one end of the hot water inlet pipe (102) is connected with a plurality of hot water flow pipes (107), the other end of the hot water outlet pipe (103) is connected with the plurality of hot water flow pipes (107), the upper surface of a heat collecting base plate (104) is provided with a heat absorbing blue film (105), the lower surface of the heat collecting base plate (104) is provided with a base plate pipe groove (109), the upper surface of a heat transfer clamp plate (106) is provided with a clamp plate pipe groove (110), the heat collecting base plate (104) is connected with the heat transfer clamp plate (106), and the hot water flow pipes (107) are clamped and matched between the base plate pipe groove (109) and the clamp plate pipe groove (110).

3. The solar thermal washing system of claim 1, wherein: The solar hot water collector (1) is communicated with the cold water storage tank (201), the solar hot water collector (1) is communicated with the low-temperature hot water storage tank (202), the low-temperature hot water storage tank (202) is communicated with the high-temperature hot water storage tank (203), the high-temperature hot water storage tank (203) is communicated with the water washing equipment (2), the water washing equipment (2) is communicated with the backwater pool (204), and the backwater pool (204) is communicated with the cold water storage tank (201).

4. The solar thermal washing system of claim 1, wherein: The solar hot air collector (6) comprises a hot air insulation box (601) and a bottom layer base plate (602) arranged in the hot air insulation box (601), the upper surface of the bottom layer base plate (602) is provided with a surface layer blue film (603), the hot air insulation box (601) is provided with an air inlet channel (604) and an air outlet channel (605), the air inlet channel (604) is provided with an air outlet hole (608), the air outlet channel (605) is provided with an air inlet hole (609), and the air outlet hole (608) and the air inlet hole (609) form a hot air collecting channel located on the lower surface of the bottom layer base plate (602).

5. The solar thermal washing system of claim 4, wherein: The air inlet channel (604) is in L-shaped structure, one end of the air inlet channel (604) is located on the left side of the hot air insulation box (601) and arranged flush with the side edge, the other end of the air inlet channel (604) is located on the front side of the hot air insulation box (601) and arranged flush with the side edge, the air outlet channel (605) is in straight line structure and located on the right side of the hot air insulation box (601) and arranged flush with the side edge, the air inlet channel (604) is communicated with an air inlet pipe joint (606) which extends out from the lower corner on the right side of the hot air insulation box (601), and the air outlet channel (605) is communicated with an air outlet pipe joint (607) which extends out from the upper corner on the right side of the hot air insulation box (601).

6. The solar thermal washing system of claim 1 or 3, wherein: The high-temperature hot water storage tank (203) communicated with the rear end of the solar hot water collector (1) is communicated with at least one of the solar steam collector (4), the hot oil steam generator (8) and the hot water steam generator (9).

7. The solar thermal washing system of claim 1, wherein: The solar heat oil collector (3) comprises a heat oil insulation box (301) and a heat oil main pipe (304) in the heat oil insulation box (301), the side of the heat oil main pipe (304) is provided with a heat collecting wing plate (305), the upper surface of the heat oil main pipe (304) and the heat collecting wing plate (305) is provided with a heat collecting blue film (306), the inlet end and the outlet end of the heat oil main pipe (304) are provided with a shunt hole (309), the heat collecting wing plate (305) is internally provided with a shunt cavity (310) along the pipe direction, the shunt holes (309) at two ends are communicated with two ends of the shunt cavity (310) respectively, and the heat oil main pipe (304) is internally provided with a resistance flow structure which is arranged along the flow direction and is located at the rear of the shunt hole (309) relative to the inlet end.

8. The solar thermal washing system of claim 7, wherein: The resistance flow structure comprises a resistance flow protrusion (307) and a resistance flow ball (308), the resistance flow protrusion (307) is arranged on the heat oil main pipe (304) and is used for clamping the resistance flow ball (308) along the pipe direction.

9. The solar thermal washing system of claim 7, wherein: The middle part of the shunt cavity (310) is provided with an internal partition plate (311) which is arranged along the pipe direction, and the internal partition plate (311) divides the middle part of the shunt cavity (310) into at least two unit cavities (312).

10. The solar thermal washing system of claim 1 or 7, wherein: The oil supply pipe of the solar heat oil collector (3) is communicated with a first heat conducting oil storage tank (801), the first heat conducting oil storage tank (801) is communicated with a second heat conducting oil storage tank (802), the second heat conducting oil storage tank (802) is communicated with a heat oil steam generator (8), and the backflow pipe of the heat oil steam generator (8) is communicated with the solar heat oil collector (3) after passing through the second heat conducting oil storage tank (802) and the first heat conducting oil storage tank (801).

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