Hydrothermal double-effect system of heat storage water floating roof greenhouse

Abstract

The invention belongs to the technical field of energy utilization, and discloses a heat storage water floating roof greenhouse hydrothermal double-effect system which ingeniously integrates a floating roof structure and greenhouse design, a large heat storage water floating roof with the heat loss exceeding 60% is transformed, a rare earth wavelength conversion film is embedded in a top flexible blocking layer, and the heat loss of the large heat storage water floating roof is reduced. The film is arranged between a high-temperature-resistant flexible impermeable film and an aluminum foil, efficient conversion from disordered heat radiation to directional infrared heat energy is achieved, the film directly acts on greenhouse crop canopies, the soil temperature trend is predicted based on a long-short-term memory neural network prediction model, the soil temperature trend is dynamically distributed to greenhouse heating or electricity storage, and a biomass combustion heat compensation device is linked at the extremely low temperature. The greenhouse not only serves as a heat loss protective barrier, but also plays a role of an energy conversion platform, and when the floating roof dissipates heat, the waste heat recovery system captures heat energy to increase the temperature of the greenhouse and form a coupling relationship, so that the mechanism effectively reduces heat loss and ensures that the heat loss of the floating roof serves a greenhouse planting area to the maximum extent.

Description

Technical Field

[0001] The invention belongs to the technical field of energy utilization, and in particular relates to a water-heat dual-effect system of a hot water storage floating roof greenhouse. Background Art

[0002] Large-scale underground thermal water storage systems, as core facilities for renewable energy storage and utilization, offer significant advantages in heating and industrial applications. By absorbing low-grade thermal energy such as solar energy and industrial waste heat, they achieve cross-seasonal heat storage, delivering a stable output of hot water at 40-60°C in winter, providing residents with a low-cost heat source and reducing carbon emissions. However, the floating roof structures of these systems have long faced two major technical bottlenecks: first, significant heat loss from the floating roof. Chinese Patent CN 108444326A (Fan Jianhua) discloses a water-soil coupled thermal storage system that reduces heat loss by installing a floating insulation cover. Chinese Patent CN 114279094B (He Mingfei) discloses a system that uses rigid insulation materials and a mortise-and-tenon joint structure to enhance the thermal insulation and load-bearing capacity of the roof. However, rigid insulation materials can age and deform over time, compromising their insulation effectiveness. Chinese patent CN115978816A (He Mingfei) discloses a two-stage stacked structure and a wavy interlocking design. While this helps improve the floating roof's anti-seepage, thermal insulation, and load-bearing capacity, this complex structure increases manufacturing costs and construction difficulty. Chinese patent CN118653734A (Han Qichao) discloses a multi-layer structure and air insulation layer design, which significantly improves the floating roof's thermal insulation effect. However, the heat conduction mechanism and thermal expansion coefficient differences between the layers of material require further in-depth research to prevent structural damage caused by material thermal expansion coefficient mismatches. Furthermore, Chinese patent CN206231899 (Yang Ming) discloses a low-heat-loss, hot water storage flexible floating roof. The floating roof consists of a high-temperature-resistant flexible membrane layer, a honeycomb insulation layer, and an automatic exhaust valve. Heat loss is reduced through a pressure-balancing design. Numerous research efforts are underway to reduce heat loss in floating roofs. Despite this, practical challenges remain. Compared to heat loss from other components, heat loss in floating roofs accounts for over 60%, resulting in energy waste and high manufacturing costs. Secondly, floating roof drainage efficiency is insufficient. Chinese patent CN119160530A (Huang Kailiang) achieves effective roof drainage through a spliced ​​structure and automatic drainage design. However, the connections and seals of components such as the drainage plate, external drainage ring groove, drainage hopper, and water collection tank must be ensured to prevent leakage or seepage. Furthermore, the automatic drainage structure increases roof manufacturing costs. Chinese patent CN201012819Y (Yang Shimo) discloses a fully flexible membrane floating roof, utilizing a fully flexible membrane and a continuous ring of floating rings. This also involves a drainage system. Conventional floating roof designs can cause roof deformation due to accumulated rainwater freezing, and the drainage pipes have poor frost resistance and a high rate of cracking. Long-term drainage due to the inability to drain accumulated water can lead to various serious problems.

[0003] Furthermore, research shows that the insulated roof is the most expensive component of the entire water storage system, accounting for approximately half of the total cost. Existing improvement technologies have significant limitations. For example, phase-change thermal storage materials (such as paraffin) have low thermal conductivity and insufficient energy storage density, making them incapable of compensating for continuous heat loss during extreme cold. Furthermore, residual heat from the roof is not utilized in a targeted manner, and frozen drain pipes exacerbate the thermal cycle load, creating a vicious cycle of heat loss, high energy consumption, and wasted resources. Summary of the Invention

[0004] The purpose of the present invention is to overcome the problem of heat loss in the floating roof of a hot water storage body caused by insufficient energy storage density in the existing structure, and to provide a hot water storage body floating roof greenhouse water-heat dual-effect system.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: In a first aspect, the present invention provides a water-heating dual-effect system for a floating roof greenhouse with a hot water storage body, comprising a floating roof placed on a frozen water body, a greenhouse system being provided on the floating roof, and planting soil being placed on the floating roof; The greenhouse system includes greenhouse support components, which are fixed to the floating roof and are wrapped with self-limiting temperature electric heating cables; The floating roof includes an outer protective layer, an anti-seepage insulation layer and a top flexible barrier layer arranged in sequence from the outside to the inside. The top flexible barrier layer includes an aluminum foil, a rare earth wavelength conversion film and a high-temperature resistant flexible anti-seepage film arranged in sequence from the outside to the inside. The greenhouse system is equipped with temperature and humidity sensors and sprinkler devices. The self-limiting temperature electric heating tape, temperature and humidity sensors and sprinkler devices are all connected to the control unit. The control unit is used to control the opening and closing of the self-limiting temperature electric heating tape and sprinkler devices according to the data obtained by the temperature and humidity sensors.

[0006] A further improvement of the present invention is that the control unit, the self-limiting temperature electric heating tape and the spraying device are all connected to a storage battery, and the storage battery is connected to the solar photovoltaic panel.

[0007] A further improvement of the present invention is that the greenhouse system includes a greenhouse foundation, the greenhouse foundation is covered with planting soil, the greenhouse foundation is fixed on the outer protective layer of the floating roof, the greenhouse support structure is fixed on the greenhouse foundation, and the greenhouse support structure and the greenhouse foundation are covered with a polyvinyl chloride film.

[0008] A further improvement of the present invention is that the polyvinyl chloride film is fixed on a fixing device, the fixing device includes a pad, the pad is fixed on the floating roof, a screw bracket is provided on the pad, a supporting device is provided on the top of the screw bracket, a roller fixing bracket is provided on the supporting device, a bearing is provided on the roller fixing bracket, a roller is provided on the outer sleeve of the bearing, the roller is used to sleeve the polyvinyl chloride film, a handle is provided outside the bearing, and a buckle is provided on the roller fixing bracket.

[0009] A further improvement of the present invention is that the greenhouse support structure includes a plurality of main columns, arch rods are provided between adjacent main columns, and diagonal braces are provided between the main columns and the arch rods.

[0010] A further improvement of the present invention is that a maintenance manhole is provided at the surface of the floating roof, and an exhaust hole is provided in the maintenance manhole.

[0011] A further improvement of the present invention is that the spraying device is connected to the water collection well through a return pipe, and a drip irrigation pump is provided on the return pipe.

[0012] A further improvement of the present invention is that a drainage ditch is opened beside the greenhouse system, and the drainage ditch is connected to the water collection well through a drainage pipe.

[0013] A further improvement of the present invention is that a plurality of V-shaped water guide grooves are provided on the greenhouse system, and all the V-shaped water guide grooves are connected to the drainage ditch through PP antifreeze drainage pipes.

[0014] A further improvement of the present invention is that a geotextile is provided under the planting soil, and the geotextile is arranged on the floating roof.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This invention cleverly combines the floating roof structure with the greenhouse design. It is designed to modify the floating roof of large-scale hot water storage bodies with heat losses exceeding 60%. By embedding a rare earth wavelength conversion membrane in the top flexible barrier layer, which is placed between a high-temperature resistant flexible anti-seepage membrane and aluminum foil, it achieves efficient conversion of disordered thermal radiation into directional infrared heat energy, which directly acts on the greenhouse crop canopy. The soil temperature trend is predicted based on a long-short-term memory neural network prediction model, and dynamically allocated to the greenhouse for heating or electricity storage. In extreme low temperatures, it is linked to a biomass combustion heating device. The greenhouse not only serves as a heat loss protection barrier, but also plays the role of an energy conversion platform. When the floating roof dissipates heat, the waste heat recovery system captures heat energy to increase the greenhouse temperature. The increased greenhouse temperature suppresses the heat dissipation of the floating roof, forming a coupled relationship. This mechanism effectively reduces heat loss and ensures that the heat loss of the floating roof serves the greenhouse planting area to the maximum extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the present invention; Figure 2 It is a longitudinal cross-sectional view of the present invention; Figure 3 This is a diagram showing the coordination relationship between the greenhouse support structure and the self-limiting temperature heating tape in the present invention; Figure 4 This is a plan view of the foundation for the floating roof greenhouse of the present invention; Figure 5 This is a structural diagram of the greenhouse support component in the present invention; Figure 6 Schematic diagram of the greenhouse support structure of the present invention; Figure 7 This is a cross-sectional view of the top flexible barrier layer structure of the present invention; Figure 8 This is a transverse cross-sectional view of the multi-span greenhouse structure of the present invention; Figure 9 This is a plan view of the multi-span greenhouse structure of the present invention; Figure 10 This is a schematic diagram of the recycling of rainwater for irrigation in the present invention; Among them: 1. Greenhouse system; 101. Polyvinyl chloride film; 102. V-shaped water guide channel; 103. PP antifreeze drainage pipe; 104. Greenhouse support structure; 1041. Main column; 1042. Arch rod; 1043. Diagonal brace; 105. Self-limiting temperature electric heating tape; 106. Greenhouse foundation; 107. Planting soil; 108. Geotextile; 2. Floating roof; 201. Inspection manhole; 2011. Exhaust hole; 202. Floating roof external protective layer; 203. Anti-seepage insulation layer; 204. Top flexible barrier layer; 2041. Aluminum foil; 2042. Rare earth Wavelength conversion film; 2043, high-temperature resistant flexible anti-seepage membrane; 3, water body; 4, drainage ditch; 5, frozen soil; 6, fixing device; 601, handle; 602, bearing; 603, roller fixing bracket; 604, roller; 605, buckle; 606, supporting device; 607, screw bracket; 608, nut; 609, pad; 7, control unit; 701, temperature and humidity sensor; 801, spraying device; 802, drip irrigation pump; 803, return pipe; 804, drainage pipe; 805, water collection well; 9, solar photovoltaic panel; 10, battery. DETAILED DESCRIPTION

[0017] In order to further understand the content of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the embodiments are only for explaining the present invention and are not intended to limit it.

[0018] Example 1: See also Figure 1 and Figure 2A water-heating dual-effect system for a floating roof greenhouse with a hot water storage body includes a floating roof 2 placed on a water body 3 of frozen soil 5, a greenhouse system 1 is provided on the floating roof 2, and planting soil 107 is placed on the floating roof 2; the greenhouse system 1 includes a supporting greenhouse member 104, which is fixed to the floating roof 2 and wrapped with a self-limiting temperature electric heating cable 105; the floating roof 2 includes a floating roof outer protective layer 202, an anti-seepage insulation layer 203, and a top flexible barrier layer 204, which are arranged in sequence from the outside to the inside. The top flexible barrier layer 204 includes, arranged in order from the outside inward, aluminum foil 2041, a rare earth wavelength conversion film 2042, and a high-temperature-resistant flexible anti-seepage membrane 2043. The greenhouse system 1 is equipped with a temperature and humidity sensor 701 and a sprinkler 801. The self-limiting temperature heating cable 105, the temperature and humidity sensor 701, and the sprinkler 801 are all connected to a control unit 7. The control unit 7 is used to control the opening and closing of the self-limiting temperature heating cable 105 and the sprinkler 801 based on the data obtained by the temperature and humidity sensor 701. The self-limiting temperature heating cable 105 can be installed on the greenhouse support structure or laid along the soil surface within the greenhouse. The self-limiting temperature heating cable maintains a constant soil temperature through directional heating, promoting crop root growth. It also reduces the thermal bridge effect caused by heat transfer from the greenhouse through the metal bracket to the outside, thereby reducing the amplitude of nighttime greenhouse temperature fluctuations.

[0019] The hot water storage floating roof greenhouse system provided in this embodiment utilizes a floating roof 2 and greenhouse system 1. This system is specifically designed for large-scale hot water storage floating roofs 2 with heat losses exceeding 60%. By embedding a rare earth wavelength conversion film 2042 within the top flexible barrier layer 204, positioned between a high-temperature-resistant flexible impermeable membrane 2043 and aluminum foil 2041, it efficiently converts random thermal radiation into directional infrared heat energy, directly affecting the crop canopy within greenhouse system 1. Greenhouse system 1 not only serves as a heat loss barrier but also as an energy conversion platform, effectively reducing heat loss and ensuring that the heat lost from floating roof 2 is maximized for the growing area within greenhouse system 1.

[0020] The floating roof greenhouse system 1 is installed in a north-facing south orientation. This ensures more even distribution of light within the system, facilitating plant absorption. Dynamic adjustment of the heating cable power or the blower power of the combustion heating device ensures that the greenhouse nighttime temperature remains above 8°C even in a -30°C environment, thereby maintaining a constant soil temperature.

[0021] Example 2: See also Figure 3 and Figure 4The control unit 7, self-limiting temperature heating cable 105, and sprinkler 801 are all connected to the battery 10, which is in turn connected to the solar photovoltaic panel 9. The solar photovoltaic panel 9 is secured by a supporting greenhouse structure 104, which is reinforced with high-frequency welded main columns 1041 and arch rods 1042. The installation of the solar photovoltaic panel 9 divides the greenhouse system 1 into a south shed and a north shed. The solar photovoltaic panel 9 is installed between the south and north sheds. One side of the polyvinyl chloride film 101 is connected to the V-shaped water channel 102, and the other side is secured by the fixing device 6.

[0022] The monocrystalline silicon modules of the solar photovoltaic panels 9 convert solar energy into electricity, which is preferentially used to power the electric heating and antifreeze system and the intelligent control unit. This reduces dependence on the traditional power grid, lowers electricity costs, and reduces biomass fuel consumption and carbon emissions. The lithium iron phosphate battery pack stores excess daytime electricity for use at night or on rainy days, significantly reducing operating costs. A maximum power point tracking controller, linked to the intelligent control unit, dynamically adjusts the power output of the photovoltaic power generation and battery energy storage based on real-time temperature, light intensity, and load demand, reducing inefficient energy consumption.

[0023] When installing the solar photovoltaic panels 9, it is inevitable that a lot of land area will be occupied. The design of the north-south shed can make up for the defect of occupying land area, and laying the polyvinyl chloride film 101 and the solar photovoltaic panels 9 at intervals can match the crop lighting requirements, such as planting low-light crops (shiitake mushrooms, Chinese herbal medicines) and light-loving crops (tomatoes) in different areas, forming a composite model of dual use in one place. In addition, the solar photovoltaic panels 9 convert solar energy into electrical energy, which gives priority to powering the self-limiting temperature heating tape 105 and the intelligent control unit 7, while the battery 10 stores surplus electricity during the day for use at night or on rainy days, significantly reducing operating costs.

[0024] Example 3: See also Figure 2 The greenhouse system 1 includes a greenhouse foundation 106, which is covered with planting soil 107. The greenhouse foundation 106 is fixed on the outer protective layer 202 of the floating roof, and the supporting greenhouse component 104 is fixed on the greenhouse foundation 106. The supporting greenhouse component 104 and the greenhouse foundation 106 are covered with a polyvinyl chloride film 101.

[0025] See also Figure 3 The bottom of the supporting greenhouse component 104 is provided with a thread, and a nut 608 and a pad 609 are provided in the outer protective layer 202 of the floating roof. The supporting greenhouse component 104 is connected to the nut 608. The cooperation between the supporting greenhouse component 104 and the nut 608 and the pad 609 can help the floating roof greenhouse system 1 to be positioned and fixed, making the installation of the floating roof greenhouse system 1 more convenient and stable.

[0026] Example 4: See also Figure 5The polyvinyl chloride film 101 is fixed on the fixing device 6, which includes a pad 609, which is fixed on the floating roof 2. A screw bracket 607 is provided on the pad 609, and a supporting device 606 is provided on the top of the screw bracket 607. A roller fixing bracket 603 is provided on the supporting device 606, and a bearing 602 is provided on the roller fixing bracket 603. A roller 604 is provided on the outer sleeve of the bearing 602. The roller 604 is used to sleeve the polyvinyl chloride film 101. A handle 601 is provided on the outside of the bearing 602, and a buckle 605 is provided on the roller fixing bracket 603.

[0027] Example 5: See also Figure 6 The supporting structure 104 of the greenhouse includes several main columns 1041. Arch rods 1042 are installed between adjacent main columns 1041, and diagonal braces 1043 are installed between the main columns 1041 and the arch rods 1042. A maintenance manhole 201 is located at the surface of the floating roof 2, and an exhaust hole 2011 is installed in the maintenance manhole 201. The sprinkler system 801 is connected to the water collection well 805 via a return pipe 803, which is equipped with a drip irrigation pump 802.

[0028] The floating roof drainage, snow melting and recycling system provided in this embodiment utilizes a floating roof greenhouse system 1, a V-shaped water guide trough 102, a PP antifreeze drainage pipe 103, a drainage ditch 4, a water collection well 805 and a self-limiting temperature electric heating tape 105 to transform the design of the floating roof drainage with insufficient efficiency. At the same time, a snow melting system is added. The greenhouse system 1 is installed on the outer protective layer 202 of the floating roof of the hot water storage body. A V-shaped water guide trough is provided on the top of the greenhouse, and a self-limiting temperature electric heating tape 105 is integrated at the bottom of the trough. The self-limiting temperature electric heating tape 105 is spirally installed on the supporting greenhouse structure. On component 104, temperature and humidity sensors are installed on the surface of the planting soil, the sprinkler device is arranged parallel to the longitudinal direction of the greenhouse as needed, the intelligent control unit is arranged according to the on-site conditions, the drainage ditch 4 is arranged in a rectangular layout around the circumference of the greenhouse, the water collection well 805 has a built-in sand filter layer, and the drip irrigation pump 802 is installed on the return pipe 803. It can better solve various serious problems caused by long-term accumulation of water that cannot be discharged, as well as the deformation of the roof caused by the accumulation and freezing of rainwater, and the waste of drainage resources. Problems, thereby solving the vicious cycle of heat loss, high energy consumption and waste of resources.

[0029] Example 6: See also Figure 8 、 Figure 9 and Figure 10 The greenhouse system 1 is designed to connect multiple single greenhouses through a V-shaped water channel 102, eliminating the redundant spacing between traditional greenhouse systems 1. The ratio of the enclosure surface area to the ground area is small, the heat loss is small, and the comprehensive energy saving rate is higher.

[0030] A drainage ditch 4 is located next to the greenhouse system 1 and connected to a water collection well 805 via a drainage pipe 804. Several V-shaped water channels 102 are located on the greenhouse system 1, all connected to the drainage ditch 4 via PP antifreeze drainage pipes 103. A geotextile 108 is placed under the planting soil 107 and placed on the floating roof 2.

[0031] A V-shaped water channel 102 is provided on the top of the greenhouse system 1. The V-shaped water channel 102 is provided with a two-way slope of not less than 5%. The V-shaped water channel 102 uses galvanized steel plates to enhance the load-bearing capacity and is provided with a self-limiting temperature electric heating tape 105 at the bottom to realize integrated drainage and anti-freezing; and a three-layer co-extruded PP antifreeze drainage pipe 103 is configured, and the surface is coated with silicon carbide coating to enhance wear resistance to ensure the efficiency of rainstorm drainage; the bay and ridge height are set, the diagonal brace 1043 uses hot-dip galvanized rectangular steel pipe, and the main column 1041 uses hot-dip galvanized steel pipe, which is connected by bolts to form a modular truss structure, and the supporting greenhouse component 104 is reinforced by bolting the main column 1041 and the arch rod 1042, and the bottom of the supporting greenhouse component 104 is installed in the pad nut 608 by bolts.

[0032] Covering with polyvinyl chloride film 101 ensures the waste heat utilization efficiency of the greenhouse system 1.

[0033] Among them, the greenhouse waste heat recovery system provided in this embodiment is set as a multi-span structure. In existing greenhouses, the greenhouse system 1 is usually set as a multi-span structure. Therefore, in the design of the hot water storage floating roof greenhouse, single-span or multi-span greenhouses can also be set at the same time.

[0034] This invention cleverly combines a floating roof with self-limiting heating cables, improving existing designs that often suffer from insufficient drainage. The roof is installed on the outer protective layer of the water storage unit's floating roof, or on the ground independently of the floating roof structure. This allows the floating roof to be surrounded by the roof, while the self-limiting heating cables are spirally wound around the roof's supporting structure. This design effectively addresses serious issues such as deformation of the roof and cracking of drainage pipes caused by long-term water accumulation and freezing.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of protection of the claims of the present invention.

Claims

1. A water storage floating roof greenhouse water heating dual effect system, characterized in that: It includes a floating roof (2) placed on a body of water (3) on frozen soil (5), a greenhouse system (1) is provided on the floating roof (2), and planting soil (107) is placed on the floating roof (2); The greenhouse system (1) includes a greenhouse support member (104), the greenhouse support member (104) is fixed to the floating roof (2), and the greenhouse support member (104) is wrapped with a self-limiting temperature electric heating tape (105); The floating roof (2) comprises a floating roof external protective layer (202), an anti-seepage thermal insulation layer (203), and a top flexible barrier layer (204) which are sequentially arranged from the outside to the inside; the top flexible barrier layer (204) comprises an aluminum foil (2041), a rare earth wavelength conversion film (2042), and a high-temperature resistant flexible anti-seepage film (2043) which are sequentially arranged from the outside to the inside; A temperature and humidity sensor (701) and a spray device (801) are provided in the greenhouse system (1). The self-limiting temperature electric heating tape (105), the temperature and humidity sensor (701) and the spray device (801) are all connected to a control unit (7). The control unit (7) is used to control the opening and closing of the self-limiting temperature electric heating tape (105) and the spray device (801) based on data obtained by the temperature and humidity sensor (701).

2. A water storage floating roof greenhouse water heating dual-effect system according to claim 1, characterized in that: The control unit (7), the self-limiting temperature electric heating tape (105) and the spray device (801) are all connected to the storage battery (10), and the storage battery (10) is connected to the solar photovoltaic panel (9).

3. The water storage floating roof greenhouse water heating dual-effect system according to claim 1, characterized in that: The greenhouse system (1) includes a greenhouse foundation (106), the greenhouse foundation (106) is covered with planting soil (107), the greenhouse foundation (106) is fixed on the outer protective layer (202) of the floating roof, the greenhouse support member (104) is fixed on the greenhouse foundation (106), and the greenhouse support member (104) and the greenhouse foundation (106) are covered with a polyvinyl chloride film (101).

4. The water storage floating roof greenhouse water heating dual-effect system according to claim 1, characterized in that: The polyvinyl chloride film (101) is fixed on the fixing device (6), and the fixing device (6) includes a pad (609), the pad (609) is fixed on the floating roof (2), a screw bracket (607) is provided on the pad (609), a support device (606) is provided on the top of the screw bracket (607), a roller fixing bracket (603) is provided on the support device (606), a bearing (602) is provided on the roller fixing bracket (603), a roller (604) is provided on the outer sleeve of the bearing (602), and the roller (604) is used to sleeve the polyvinyl chloride film (101), a handle (601) is provided on the outside of the bearing (602), and a buckle (605) is provided on the roller fixing bracket (603).

5. The water storage floating roof greenhouse water heating dual-effect system according to claim 1, characterized in that: The greenhouse support member (104) comprises a plurality of main columns (1041), arch rods (1042) are arranged between adjacent main columns (1041), and diagonal braces (1043) are arranged between the main columns (1041) and the arch rods (1042).

6. The water storage floating roof greenhouse water heating dual-effect system according to claim 1, characterized in that: A maintenance manhole (201) is provided on the surface of the floating roof (2), and an exhaust hole (2011) is provided in the maintenance manhole (201).

7. The water storage floating roof greenhouse water heating dual-effect system according to claim 1, characterized in that: The spraying device (801) is connected to the water collection well (805) via a return pipe (803), and a drip irrigation pump (802) is provided on the return pipe (803).

8. The water storage floating roof greenhouse water heating dual-effect system according to claim 7, characterized in that: A drainage ditch (4) is provided beside the greenhouse system (1), and the drainage ditch (4) is connected to a water collection well (805) via a drainage pipe (804).

9. The water storage floating roof greenhouse water heating dual-effect system according to claim 8, characterized in that: A plurality of V-shaped water guide grooves (102) are provided on the greenhouse system (1), and all the V-shaped water guide grooves (102) are connected to the drainage ditch (4) through the PP antifreeze drainage pipe (103).

10. The water storage floating roof greenhouse water heating dual-effect system according to claim 1, characterized in that: A geotextile (108) is provided under the planting soil (107), and the geotextile (108) is placed on the floating roof (2).

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