Solar heat collection washing system

Abstract

The invention 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 technical field of industrial laundry, and specifically relates to a solar heat collection laundry system. Background Art

[0002] The industrial laundry industry (such as large hotel linen washing, medical textile disinfection, industrial uniform processing, etc.) is a typical high-energy-consuming field. Its core processes include washing, drying, ironing, steam disinfection, etc., all of which require a large amount of heat energy and electrical energy support. 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 economy: the prices of fossil fuels fluctuate significantly, and the maintenance cost of steam boilers is high, and the equipment depreciation is fast; environmental pressure: pollutants such as carbon dioxide and sulfides emitted by coal-fired or gas-fired boilers increase the environmental burden; low energy efficiency: traditional heat sources have heat losses (such as pipeline transmission losses), and the comprehensive energy efficiency is only 50%-70%.

[0004] The development of solar energy technology in the field of industrial heat utilization provides a clean and sustainable energy alternative for the laundry industry. Summary of the Invention

[0005] The purpose of this application is: This application provides a solar heat collection laundry system, which solves the problems of high energy consumption and large pollution in the traditional laundry energy supply.

[0006] The purpose of this application is achieved through the following technical solutions:

[0007] A solar heat collection laundry system includes a solar water heater, the solar water heater is connected to a water washing device, a solar hot air collector is connected to a drying device, and at least one of a solar steam collector, a hot oil-steam generator connected to a solar hot oil collector, and a hot water-steam generator is connected to an ironing device.

[0008] Further, the solar water heater includes a hot water insulation box, a hot water inlet pipe and a hot water outlet pipe are arranged in the hot water insulation box, one end of the hot water inlet pipe is connected to several hot water flow pipes, the other end of the hot water outlet pipe is connected to several hot water flow pipes, an absorption blue film is arranged on the upper surface of the heat collection substrate, a substrate pipe groove is arranged on the lower surface of the heat collection substrate, a clamping plate pipe groove is arranged on the upper surface of the heat transfer clamping plate, the heat collection substrate is connected to the heat transfer clamping plate, and the hot water flow pipes are clamped between the substrate pipe groove and the clamping plate pipe groove in a matching manner.

[0009] Further, the solar water heater is connected to a cold water storage tank, the solar water heater is connected to a low-temperature hot water storage tank, the low-temperature hot water storage tank is connected to a high-temperature hot water storage tank, the high-temperature hot water storage tank is connected to the water washing device, the water washing device is connected to a return water pool, and the return water pool is connected to the 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, the air outlet channel is provided with an air inlet hole, and 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 inlet channel is an L-shaped structure, one end of the air inlet channel is located on the left side of the hot air insulation box and is arranged flush with the side, the other end of the air inlet channel is located on the front side of the hot air insulation box and is arranged flush with the side, and the air outlet channel is a straight structure, the air outlet channel is located on the right side of the hot air insulation box and is arranged flush with the side, the air inlet channel is connected to the air inlet pipe joint, the air inlet pipe joint extends from the lower right corner of the hot air insulation box, the air outlet channel is connected to the air outlet pipe joint, and the air outlet pipe joint 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 heater, the hot oil steam generator and the water steam generator.

[0013] Furthermore, the solar thermal oil collector includes a hot oil insulation box and a hot oil main pipe therein, a heat collecting wing plate is provided on the side of the hot oil main pipe, and a heat collecting blue film is provided on the upper surface of the hot oil main pipe and the heat collecting wing plate. Diversion holes are provided on the inlet and outlet ends of the hot oil main pipe, and a diversion cavity along the pipe direction is provided inside the heat collecting wing plate. The diversion holes at both ends are respectively connected to the two ends of the diversion cavity, and a flow blocking structure is provided in the hot oil main pipe, which is located behind 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. The flow-blocking protrusion is arranged on the hot oil main pipe and the flow-blocking ball is clamped forward and backward along the pipe.

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

[0016] Furthermore, the oil supply pipe of the solar thermal oil collector is connected to the first-level thermal oil storage tank, the first-level thermal oil storage tank is connected to the second-level thermal oil storage tank, the second-level thermal oil storage tank is connected to the hot oil steam generator, and the return pipe of the hot oil steam generator passes through the second-level thermal oil storage tank and the first-level thermal oil storage tank and then connects to the solar thermal oil collector.

[0017] Beneficial effects of this application:

[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 supply for the washing system, significantly reducing the energy consumption of washing, and having both environmental and economic advantages.

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

[0020] (3) A heat collecting air duct is formed in the solar hot air collector, and cold air enters the insulation box. The heat collected by the heat collecting air duct absorbs the heat obtained by the solar energy inside the insulation box, and the cold air is converted into hot air and sent out of the insulation box, providing green and environmentally friendly hot air for subsequent drying, heating and other processes.

[0021] (4) In the solar thermal liquid collector, a diversion cavity is opened inside the heat collecting wing plate to divert the medium fluid in the hot oil main pipe into the diversion cavity. The medium in the diversion cavity is in direct contact with the heat collecting wing plate, thereby increasing the contact area between the medium and the heat collecting wing plate, achieving sufficient heat exchange between the medium and the heat collecting wing plate, and improving the heat collection effect.

[0022] The aforementioned main solution of this application and its further options can be freely combined to form multiple solutions, all of which are solutions that can be adopted and protected by this application; and in this application, (non-conflicting options) can also be freely combined with each other and with other options. After understanding the solution of this application, those skilled in the art will understand that there are many combinations based on existing technology and common knowledge, all of which are technical solutions to be protected by this application, and they are not exhaustive here. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0024] Figure 2 This is a partial structural assembly diagram of the solar water heater core of the present application.

[0025] Figure 3 This is a partial structural breakdown diagram of the solar water heater core of the present application.

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

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

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

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

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

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

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

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

[0034] Figure 12 It is the schematic diagram of the internal structure of the solar hot water collector of this application.

[0035] Figure 13 It is the schematic diagram of the overall structure of the solar hot water collector of this application.

[0036] Figure 14 It is the front view of the structure of the heat collection plate core of the solar hot water collector of this application.

[0037] Figure 15 It is the top view of the structure of the heat collection plate core of the solar hot water collector of this application.

[0038] Figure 16 It is the bottom view of the structure of the heat collection plate core of the solar hot water collector of this application.

[0039] Figure 17 It is the schematic diagram of the flow resistance structure in the heat collection plate core of the solar hot water collector of this application.

[0040] In the figure: 1 - solar water heater collector, 2 - water 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 box, 102 - hot water inlet pipe, 103 - hot water outlet pipe, 104 - heat collection substrate, 105 - heat absorption blue film, 106 - heat transfer clamping plate, 107 - hot water flow pipe, 108 - laser solder joint, 109 - substrate pipe groove, 110 - clamping plate pipe groove; 201 - cold water storage tank, 202 - low-temperature hot water storage tank, 203 - high-temperature hot water storage tank, 204 - return water pool; 301 - hot oil insulation box, 302 - hot oil inlet pipe, 303 - hot oil outlet pipe, 304 - hot oil main pipe, 305 - heat collection wing plate, 306 - heat collection blue film, 307 - flow resistance protrusion, 308 - flow resistance ball, 309 - shunt hole, 310 - shunt cavity, 311 - inner partition board, 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 joint, 607 - air outlet pipe joint, 608 - air outlet hole, 609 - air inlet hole; 801 - first-stage thermal oil storage tank, 802 - second-stage thermal oil storage tank. Detailed implementation mode

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

[0042] Embodiment 1

[0043] Reference Figure 1 As shown, a solar heat collection and object washing system includes a solar water heater collector 1, a water washing equipment 2, a solar hot air collector 6, a drying equipment 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 equipment 5.

[0044] The solar water heater collector 1 is used to provide hot water. The solar water heater collector 1 is connected to the water washing equipment 2, and the water washing equipment 2 washes clothes, objects, etc., and the provided hot water is directly used for washing. The solar hot air collector 6 is used to provide hot air. The solar hot air collector 6 is connected to the drying equipment 7, and the ironing equipment 5 dries clothes, objects, etc. with the hot air of the collector.

[0045] The solar steam collector 4, the hot oil steam generator 8 connected to the solar hot oil collector 3, and the hot water steam generator 9 are all connected to the ironing equipment 5. The solar steam collector 4 directly generates steam through solar energy. The solar hot oil collector 3 provides hot oil, and the hot oil steam generator 8 generates steam through hot oil. The hot water steam generator 9 generates steam through other methods such as electricity heating and biomass particles. The ironing equipment 5 uses the steam generated in multiple ways to iron and disinfect clothes, objects, etc.

[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 tank 204, and the return water tank 204 is connected to the cold water storage tank 201.

[0047] Cold water is stored inside the cold water storage tank 201. The cold water can be supplied by tap water or the cold water recycled from the return water tank 204. The cold water is sent into the solar water heater 1 for heating up. The heated hot 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 electric heaters inside. When the water temperature in the low-temperature hot water storage tank 202 reaches the standard, the hot water is sent into the high-temperature hot water storage tank 203. If the water temperature does not reach the standard, it is heated by electricity until it reaches the standard. When the water temperature in the high-temperature hot water storage tank 203 reaches the standard, the hot water is sent into the water washing equipment 2. If the water temperature does not reach the standard, it is heated by electricity until it reaches the standard. The wastewater used by the water washing equipment 2 is circularly collected through the return water tank 204 to recover the heat and water resources in the wastewater.

[0048] Reference Figures 2 to 7 As shown, the solar water heater 1 includes a hot water insulation box 101, a hot water inlet pipe 102, a hot water outlet pipe 103, a heat collection substrate 104, an absorption blue film 105, a heat transfer clamping plate 106, a hot water flow pipe 107, a laser solder joint 108, a substrate pipe groove 109, and a clamping plate pipe groove 110.

[0049] The transparent glass plate is located on the sun-facing side of the hot water insulation box 101. The absorption blue film 105 is opposite to the transparent glass plate. Then, sunlight passes through the transparent glass plate and irradiates on the absorption blue film 105. The absorption blue film 105 absorbs the heat energy of sunlight and gradually heats the medium through the heat collection substrate 104, the heat transfer clamping plate 106, and the hot water flow pipe 107.

[0050] One hot water inlet pipe 102 and one hot water outlet pipe 103 are respectively provided and located on both sides of the hot water insulation box 101. The hot water inlet pipe 102 is welded and connected to one end of several hot water flow pipes 107, and the hot water outlet pipe 103 is welded and connected to the other end of several hot water flow pipes 107. Then, the low-temperature medium enters from the hot water inlet pipe 102, and then is split into multiple hot water flow pipes 107 for heat absorption, and then converges to the hot water outlet pipe 103 and is discharged.

[0051] Pipe joints extending out of the hot water insulation box 101 are provided on both the hot water inlet pipe 102 and the hot water outlet pipe 103 for pipeline connection to ensure the normal flow of the medium. The collectors can be used in parallel. Then, pipe joints are welded at both ends of the hot water inlet pipe 102 and the hot water outlet pipe 103 to achieve parallel connection. For the collectors used alone and the collectors at the parallel ends, the pipe joints on the hot water inlet pipe 102 or the hot water outlet pipe 103 need to be blocked, or directly welded with plugs.

[0052] The heat collecting base plate 104 is made of aluminum alloy with a thickness of 0.2 to 0.3 mm and a length of (2 to 4 m) by (0.5 to 2 m), exhibiting excellent thermal conductivity and structural strength. A base plate tube groove 109 is provided on the lower surface of the heat collecting base plate 104, which is used to mate with the upper portion of the hot water flow pipe 107. The base plate 104, excluding the base plate tube groove 109, is a flat plate structure, ensuring that the heat collecting base plate 104 has a large, sun-facing heat collecting surface. The heat collecting base plate 104 is a unitary die-cast structure, which is easy to manufacture and has high overall strength.

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

[0054] The heat transfer splint 106 is made of aluminum alloy with a thickness of 0.3 to 0.5 mm and a length and width of (1.5 to 3.5 m) * (30 to 40 mm), and has good thermal conductivity and structural strength. The upper surface of the heat transfer splint 106 is provided with a splint tube groove 110, which is used to match and place the lower part of the hot water flow pipe 107. The plate body of the heat transfer splint 106 excluding the splint tube groove 110 is a flat plate structure, which is connected to the heat collecting base plate 104 to increase the heat transfer path. The heat transfer splint 106 is an integral die-cast structure, which is easy to process and manufacture and has high overall strength.

[0055] The heat collecting substrate 104 is fitted and connected to the heat transfer clamping plate 106, and a hot water flow pipe 107 is matched and sandwiched between the substrate tube groove 109 and the clamping plate tube groove 110. The heat of the heat collecting substrate 104 can be directly transferred to the hot water flow pipe 107. At the same time, the heat of the heat collecting substrate 104 can also be transferred to the hot water flow pipe 107 through the transition of the heat transfer clamping plate 106, thereby increasing the heating surface of the hot water flow pipe 107, which can ensure that the heat on the heat collecting substrate 104 is quickly and effectively transferred to the medium.

[0056] Hot water flow pipe 107 is made of stainless steel with a diameter of 6-10mm, offering lower manufacturing costs while ensuring excellent thermal conductivity and structural strength. A low-temperature medium flows through hot water flow pipe 107, absorbing heat from the heat-collecting substrate 104 as it flows through the pipe before being discharged. The low-temperature medium can be cold oil, cold water, or other cooling liquids. Under special operating conditions, cold air can also be introduced, allowing the discharge temperature of the medium to reach 55-85°C.

[0057] A number of substrate tube grooves 109 (seven in this embodiment) are provided on the heat collection substrate 104. The a number of substrate tube grooves 109 are arranged at equal intervals. The heat transfer clamping plate 106 is provided with a number of pieces (corresponding to seven pieces) equal to the number of substrate tube grooves 109. The clamping plate tube groove 110 is located in the middle of the heat transfer clamping plate 106. The hot water flow tube 107 is provided with a number of roots (corresponding to seven roots) equal to the number of substrate tube grooves 109. Then, multiple heat transfer clamping plates 106 are matched with one heat collection substrate 104 to realize the arrangement of multiple hot water flow tubes 107, and the multiple hot water flow tubes 107 are used to absorb the heat on the entire heat collection substrate 104 to ensure uniform and sufficient heating.

[0058] The substrate tube groove 109 is an arc groove matching the hot water flow tube 107 to realize the fitting and matching of the upper part of the substrate tube groove 109 and the hot water flow tube 107. The clamping plate tube groove 110 is a V-shaped groove, and the groove bottom of the clamping plate tube groove 110 is an arc groove bottom matching the hot water flow tube 107 to realize the fitting and matching of the lower part of the clamping plate tube groove 110 and the hot water flow tube 107.

[0059] The groove depth of the substrate tube groove 109 is less than the radius of the flow tube, and the groove 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 clamping plate 106 are connected by laser welding points 108. The laser welding points 108 are located on both sides of the hot water flow tube 107 and are arranged at equal intervals along the direction of the flow tube to realize the fixed connection between the heat collection substrate 104 and the heat transfer clamping plate 106, thereby ensuring the fitting and fixing of the hot water flow tube 107 between the two.

[0061] The high-temperature hot water storage tank 203 connected to the rear end of the solar water heater 1 is respectively connected to the solar steam collector 4, the hot oil steam generator 8, and the hot water steam generator 9. That is, the hot water in the high-temperature hot water storage tank 203 is not only used for washing, but also can provide a heat source for steam generation to ensure the stability of steam generation. Similarly, the steam generated by the solar steam collector 4 and the hot water steam generator 9 can also be transported to the high-temperature hot water storage tank 203 to heat the water in the tank. The solar steam collector 4 directly generates steam by solar irradiation, the hot oil steam generator 8 generates steam through hot oil, and the hot water steam generator 9 generates steam through other methods such as electricity and biomass pellets.

[0062] Reference Figures 8 to 11As shown in the figure, 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 joint 606, an air outlet pipe joint 607, air outlet holes 608 and air inlet holes 609.

[0063] The hot air insulation box 601 is a box with a cuboid structure, which is used to accommodate and arrange other components, can reduce the heat dissipation to the outside, and improve the heat absorption of the gas inside. Since there is ventilation inside the box, the hot air insulation box 601 needs to maintain a good sealing effect. The transparent glass plate is the window of the hot air insulation box 601, which also has a heat preservation effect and is used for the sunlight to pass through.

[0064] The bottom substrate 602 is arranged inside the hot air insulation box 601. The bottom substrate 602 is used to provide a flat and smooth large 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 arranged on it to ensure a flat and smooth plate structure, which is convenient for processing and manufacturing, convenient for coating the heat collection film, and also conducive to forming a large-area 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 by using physical vapor deposition technology and the vacuum magnetron sputtering method. It belongs to a new generation of solar energy utilization technology, has a very high absorption rate for solar radiant energy, and its own emissivity is very low, which can effectively improve the solar thermal conversion efficiency.

[0067] The air inlet channel 604 and the air outlet channel 605 are fixedly arranged inside the hot air insulation box 601. 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 hot air after heat absorption out of the box. The air inlet channel 604 is provided with air outlet holes 608, and the cold air is dispersed into the hot air collecting channel through the air outlet holes 608 to absorb heat. The air outlet channel 605 is provided with air inlet holes 609, and the hot air converges and returns from the hot air collecting channel through the air inlet holes 609 to be sent for other uses.

[0068] A hot air collecting channel is formed between the air outlet holes 608 and the air inlet holes 609 on the lower surface of the bottom substrate 602. That is, after the gas enters the box, it needs to flow through the hot air collecting channel. During this process, the gas contacts the lower surface of the bottom substrate 602 to realize temperature rise, transfers the heat absorbed by the heat collection film to the gas, and the discharged temperature of the gas reaches 85 - 110 °C.

[0069] Both the intake channel 604 and the outlet channel 605 are made of aluminum alloy, which has a lower cost and ensures good thermal conductivity and structural strength. Both the intake channel 604 and the outlet channel 605 are rectangular pipes, thus providing a pipeline with a large flow cross-section inside the box to achieve the treatment of large-flow gases.

[0070] The intake channel 604 is of an L-shaped structure. One end (left end) of the intake channel 604 is located on the left side of the hot air insulation box 601 and arranged flush with the side. The other end (front end) of the intake channel 604 is located on the front side of the hot air insulation box 601 and arranged flush with the side. The outlet channel 605 is of a straight-line structure and is located on the right side of the hot air insulation box 601 and arranged flush with the side. The specific placement and fixation of the intake channel 604 and the outlet channel 605 in the rectangular box are realized, facilitating intake and outlet from the same side.

[0071] The right end of the other end (front end) of the intake channel 604 is connected to the intake pipe joint 606, and the intake pipe joint 606 extends from the lower right corner of the hot air insulation box 601. The upper end of the outlet channel 605 is connected to the outlet pipe joint 607, and the outlet pipe joint 607 extends from the upper right corner of the hot air insulation box 601. Intake from the lower right side and outlet from the upper right side are realized. This form conforms to the layout form of the intake and outlet pipe joints of most collectors, ensuring the universality of the device.

[0072] A number of equally spaced vent holes 608 are provided on the intake channel 604, and a number of equally spaced intake holes 609 are provided on the outlet channel 605 to achieve uniform dispersion or convergence of gases. The vent holes 608 and the intake holes 609 are arranged opposite to each other, ensuring direct flow between the vent holes 608 and the intake holes 609, with a short and unobstructed path.

[0073] The oil supply pipe of the solar thermal oil collector 3 is connected to the first-stage thermal oil storage tank 801. The first-stage thermal oil storage tank 801 is connected to the second-stage thermal oil storage tank 802. The second-stage thermal oil storage tank 802 is connected to the hot oil steam generator 8. The return pipe of the hot oil steam generator 8 passes through the second-stage thermal oil storage tank 802 and the first-stage thermal oil storage tank 801 and then is connected to the solar thermal oil collector 3.

[0074] The solar thermal oil collector 3 and the first-stage thermal oil storage tank 801 form a circulation loop to achieve continuous heating of the thermal oil passing through the collector. When the oil temperature in the first-stage thermal oil storage tank 801 reaches the standard, it is sent to the second-stage thermal oil storage tank 802 for energy storage. When the hot oil steam generator needs oil supply, the second-stage thermal oil storage tank 802 directly sends it to the hot oil steam generator. When the cold oil returns, it can be sent to the second-stage thermal oil storage tank 802. The second-stage thermal oil storage tank 802 is equipped with an electric heater to heat the thermal oil to achieve electrothermal hot oil supply. The cold oil can also return to the first-stage thermal oil storage tank 801 and continue to be circulated and heated through the collector.

[0075] Reference Figures 11 to 17 As shown, the solar hot oil collector 3 includes a hot oil heat preservation box 301, a hot oil inlet pipe 302, a hot oil outlet pipe 303, a hot oil main pipe 304, a heat collection wing plate 305, a heat collection blue film 306, a flow blocking structure (flow blocking protrusion 307 and flow blocking ball 308), a flow dividing hole 309, a flow dividing 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 pipe diameter of 4 - 8 mm and a wall thickness of 0.4 - 0.8 mm, and is used for the circulation and heat absorption of the medium. The medium uses heat transfer oil, and other fluids can also be used. The side of the hot oil main pipe 304 is provided with a heat collection wing plate 305, which is also made of aluminum alloy, with a width of 35 - 45 mm and a plate thickness of 0.4 - 0.8 mm. The heat collection wing plate 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 collection wing plate 305 are made of aluminum alloy by integral extrusion molding, which is convenient for processing and manufacturing. The pipe length of the hot oil main pipe 304 is greater than the length of the heat collection wing plate 305 to realize the relative protrusion of the hot oil main pipe 304 at both ends. Heat collection wing plates 305 are provided on both sides of the hot oil main pipe 304, and the heat collection wing plates 305 on both sides are symmetrically arranged, that is, the hot oil main pipe 304 is arranged in the middle to support the heat collection wing plates 305 on both sides.

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

[0079] Flow dividing holes 309 are opened on both sides of the pipe wall at the inlet end and the outlet end of the hot oil main pipe 304. Flow dividing cavities 310 along the pipe direction are opened inside the heat collection wing plates 305 on both sides, and the flow dividing holes 309 at both ends are respectively communicated with both ends of the flow dividing cavity 310. The width of the flow dividing cavity 310 is 25 - 35 mm, and it does not completely occupy the width of the heat collection wing plate 305, and the height inside the cavity is 2.5 - 3.5 mm.

[0080] Then the medium enters the hot oil main pipe 304 from the inlet end, is shunted to both sides from the shunt holes at the inlet end into the shunt cavity 310, flows backward in the shunt cavity 310, then converges again into the hot oil main pipe 304 through the shunt holes at the outlet end, and is discharged from the outlet end. Since the arrangement of the shunt cavity 310 increases the flow channel of the medium, direct contact between the medium and the heat collecting wing plate 305 is achieved, greatly increasing the heat exchange area and improving the heat exchange and heat transfer effect of the overall plate core. The discharged temperature of the medium reaches 100 - 130 °C.

[0081] A flow blocking structure is provided in the hot oil main pipe 304, which is behind the shunt holes 309 relative to the inlet end along the flow direction. The flow blocking structure is used to block the fluid in the hot oil main pipe 304, so that the medium can be shunted from the shunt holes 309 into the shunt cavity 310, rather than all directly passing through the hot oil main pipe 304.

[0082] The flow blocking structure completely closes the hot oil main pipe 304 or leaves a shunt gap. That is, the flow blocking structure completely closes the hot oil main pipe 304, and the medium does not pass through the middle section of the hot oil main pipe 304 but only flows through the heat collecting wing plate 305. This method wastes the heat exchange area of the middle section of the hot oil main pipe 304. Or the flow blocking structure does not completely close the hot oil main pipe 304, and part of the medium still flows through the middle section of the hot oil main pipe 304 through the shunt gap for heat absorption, realizing reasonable medium shunting and sufficient heat exchange.

[0083] The upper surface of the heat collecting wing plate 305 is a plane, which is convenient for processing and manufacturing, and also convenient for coating the heat collecting blue film to form a large-area heat absorption surface. The outer side of the lower surface of the heat collecting wing plate 305 is a plane, maintaining the straight plate structure on the outer side of the wing plate. The inner side of the lower surface of the heat collecting wing plate 305 is a convex platform, and the convex platform is the space protruding for the internal shunt cavity. The lower surface of the convex platform is flush with the lower end of the main pipe, and the outside of the convex platform is transitioned to the outer plane through an arc, which is convenient for processing and manufacturing and ensures the structural strength. The outer side of the heat collecting wing plate 305 is integrally extended with a downward flange, and the flange serves as a rib to improve the 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 provided on the hot oil main pipe 304 and clamps the flow blocking ball 308 in the front and back directions along the pipe direction. That is, the flow blocking protrusion 307 is the pipe wall that protrudes inward into the pipe, and the protrusion is used to limit the flow blocking ball 308 in the front and back directions to ensure the flow blocking effect of the sphere under the impact of the fluid. 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, so as to leave a shunt gap.

[0085] In the middle of the flow - dividing cavity 310, there is an inner partition 311 arranged along the pipe direction. The inner partition 311 and the heat - collecting wing plate 305 are of an integral structure made of the same material. The inner partition 311 divides the middle part of the flow - dividing cavity 310 into at least two unit cavities 312. In this example, specifically, there are two unit cavities 312. The unit cavities 312 further divide the medium in the flow - dividing cavity 310, ensuring the uniform and stable flow of the internal medium and good heat - transfer effect.

[0086] There is one hot - oil inlet pipe 302 and one hot - oil outlet pipe 303, which are respectively located on both sides of the hot - oil heat - preservation 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. Then the low - temperature medium enters from the hot - oil inlet pipe 302, and then is divided and flows into multiple hot - oil main pipes 304 and their heat - collecting wing plates 305 to absorb heat, and then converges to the hot - oil outlet pipe 303 and is discharged.

[0087] The heat - collecting blue film 306 faces the transparent glass plate of the hot - oil heat - preservation box 301. Then sunlight passes through the transparent glass plate and shines on the heat - collecting blue film 306. The heat - collecting blue film 306 absorbs the heat energy of sunlight, and directly contacts the medium through the hot - oil main pipes 304 and the heat - collecting wing plates 305, realizing the full heating of the medium.

[0088] Both the hot - oil inlet pipe 302 and the hot - oil outlet pipe 303 are provided with pipe joints extending out of the hot - oil heat - preservation box 301. They are used for pipeline connection to ensure the normal flow of the medium. The collectors can be used in parallel. Then both ends of the hot - oil inlet pipe 302 and the hot - oil outlet pipe 303 are welded with pipe joints to achieve parallel connection. For the individual use of the collector and the collectors at the parallel ends, the pipe joints on the hot - oil inlet pipe 302 or the hot - oil outlet pipe 303 need to be blocked, or directly welded with plugs.

[0089] The basic example of the present application and its various further selected examples can be freely combined to form multiple embodiments, all of which are the embodiments that can be adopted and claimed in the present application. In the solution of the present application, each selected example can be arbitrarily combined with any basic example and selected example.

[0090] The above are only the preferred embodiments of the present application, and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A solar heat collection washing system, comprising a solar water heater (1), characterized in that: The described solar water heater collector (1) is connected to the water washing device (2), the solar hot air collector (6) is connected to the drying device (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) connected thereto is connected to the ironing device (5).

2. The solar heat collecting laundry system according to claim 1, wherein: The described solar water heater collector (1) includes a hot water insulation box (101). Inside the hot water insulation box (101), there are a hot water inlet pipe (102) and a hot water outlet pipe (103). One end of the hot water inlet pipe (102) is connected to several hot water flow pipes (107), and the other end of the hot water outlet pipe (103) is connected to several hot water flow pipes (107). On the upper surface of the heat collection substrate (104), there is a heat absorption blue film (105). On the lower surface of the heat collection substrate (104), there is a substrate pipe groove (109). On the upper surface of the heat transfer clamping plate (106), there is a clamping plate pipe groove (110). The heat collection substrate (104) is connected to the heat transfer clamping plate (106), and a hot water flow pipe (107) is clamped between the substrate pipe groove (109) and the clamping plate pipe groove (110) in a matching manner.

3. The solar heat collecting laundry system according to claim 1, characterized in that: The described solar water heater collector (1) is connected to a cold water storage tank (201), the solar water heater collector (1) is connected to a low-temperature hot water storage tank (202), the low-temperature hot water storage tank (202) is connected to a high-temperature hot water storage tank (203), the high-temperature hot water storage tank (203) is connected to the water washing device (2), the water washing device (2) is connected to a return water pool (204), and the return water pool (204) is connected to the cold water storage tank (201).

4. The solar heat collection laundry system according to claim 1, wherein: The described solar hot air collector (6) includes a hot air insulation box (601) and a bottom layer substrate (602) therein. On the upper surface of the bottom layer substrate (602), there is a surface layer blue film (603). Inside the hot air insulation box (601), there are an air inlet channel (604) and an air outlet channel (605). On the air inlet channel (604), there are air outlet holes (608). On the air outlet channel (605), there are air inlet holes (609). A hot air collection channel is formed between the air outlet holes (608) and the air inlet holes (609) on the lower surface of the bottom layer substrate (602).

5. The solar heat collecting laundry system according to claim 4, wherein: The air inlet channel (604) is of an 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 is 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 is arranged flush with the side edge. The air outlet channel (605) is of a straight-line structure and is located on the right side of the hot air insulation box (601) and is arranged flush with the side edge. The air inlet channel (604) is connected to an air inlet pipe joint (606), and the air inlet pipe joint (606) extends out from the lower right corner of the hot air insulation box (601). The air outlet channel (605) is connected to an air outlet pipe joint (607), and the air outlet pipe joint (607) extends out from the upper right corner of the hot air insulation box (601).

6. The solar heat collecting washing system according to claim 1 or 3, characterized in that: The high-temperature hot water storage tank (203) connected to the rear end of the described solar water heater collector (1) is connected to at least one of the solar steam collector (4), the hot oil steam generator (8) and the water steam generator (9).

7. The solar heat collecting laundry system according to claim 1, characterized in that: The described solar hot oil collector (3) includes a hot oil insulation box (301) and a hot oil main pipe (304) therein. A heat collection wing plate (305) is provided on the side of the hot oil main pipe (304). A heat collection blue film (306) is provided on the upper surfaces of the hot oil main pipe (304) and the heat collection wing plate (305). Shunt holes (309) are opened at both the inlet end and the outlet end of the hot oil main pipe (304). A shunt cavity (310) along the pipe direction is opened inside the heat collection wing plate (305). The shunt holes (309) at both ends are respectively communicated with both ends of the shunt cavity (310). A flow blocking structure is provided in the hot oil main pipe (304) that is behind the shunt hole (309) at the inlet end along the flow direction.

8. The solar heat collecting laundry system according to claim 7, characterized in that: The described flow blocking structure includes a flow blocking protrusion (307) and a flow blocking ball (308). The flow blocking protrusion (307) is provided on the hot oil main pipe (304) and clamps the flow blocking ball (308) along the pipe direction before and after.

9. The solar heat collecting laundry system according to claim 7, wherein: An inner partition plate (311) arranged along the pipe direction is provided in the middle of the shunt cavity (310). The inner partition plate (311) divides the middle part of the shunt cavity (310) into at least two unit cavities (312).

10. The solar heat collecting laundry system according to claim 1 or 7, characterized in that: The supply oil pipe of the described solar hot oil collector (3) is communicated with the first-stage heat transfer oil storage tank (801). The first-stage heat transfer oil storage tank (801) is communicated with the second-stage heat transfer oil storage tank (802). The second-stage heat transfer oil storage tank (802) is communicated with the hot oil steam generator (8). The return pipe of the hot oil steam generator (8) is communicated with the solar hot oil collector (3) after passing through the second-stage heat transfer oil storage tank (802) and the first-stage heat transfer oil storage tank (801).

Images