Adjustable greenhouse heat storage and heat preservation composite structure
Patent Information
- Application Number
- CN202522756007.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-25
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-25
AI Technical Summary
[0005]针对现有技术中,大棚保温供暖设备存在的换热部件结构单一导致热交换效率低下、缺乏蒸汽引导机制造成热分布不均、以及因缺乏水质净化功能导致系统易结垢和溢流保护缺失导致使用安全性低等问题,本实用新型旨在提供一种结构经过改良的、能够有效解决上述问题的可调节式大棚蓄热保温复合结构
[0017]1、本实用新型,通过在架设循环热管组表面开设螺旋通流槽,并在蒸汽过滤罩内的蒸汽排管顶端设置波浪形引导槽,解决了现有大棚供暖设备换热面积有限、热气流扩散不均匀导致升温慢的问题,达到了显著增加换热接触面积、利用螺旋结构增强流体湍流度以提高传热效率,并通过波浪形结构优化蒸汽扩散形态,实现大棚内部快速、均匀升温的技术效果。
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Figure CN224891354U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of greenhouse environmental control equipment, and in particular to an adjustable greenhouse heat storage and insulation composite structure. Background Technology
[0002] In modern agricultural planting, in order to ensure the normal growth of crops in the low-temperature season, heating and insulation facilities are usually required in greenhouses. Currently, the most common greenhouse heating methods are hot water circulation pipes for heat dissipation or steam heating.
[0003] However, most existing hot water circulation pipes use standard round pipes with smooth surfaces, which have limited contact area with air. Furthermore, the flow of hot water inside the pipes is often laminar, resulting in low heat transfer efficiency and an inability to quickly raise the temperature inside the greenhouse. At the same time, existing steam generators usually discharge steam directly into the greenhouse or simple pipes, lacking an effective mechanism for guiding and diffusing steam flow. This causes hot steam to easily accumulate locally rather than be evenly distributed, resulting in energy waste and the risk of scalding crops. More importantly, existing greenhouse heating systems often neglect the pretreatment of water sources, directly using unpurified groundwater or tap water for heating and circulation. After long-term operation, scale easily forms on the heating modules, water pumps, and inner walls of pipes, which not only affects the heat exchange effect but also leads to pipe blockage and even equipment damage. In addition, traditional heating water tanks lack effective overflow protection mechanisms, making them prone to hot water overflow accidents when the water expands due to heat or when water replenishment is incorrect.
[0004] Therefore, this utility model proposes an adjustable greenhouse heat storage and insulation composite structure to overcome the shortcomings of the existing technology. Utility Model Content
[0005] In view of the problems existing in greenhouse heat preservation and heating equipment, such as low heat exchange efficiency due to simple heat exchange component structure, uneven heat distribution due to lack of steam guiding mechanism, easy scaling of system due to lack of water purification function and low safety due to lack of overflow protection, this utility model aims to provide an adjustable greenhouse heat storage and heat preservation composite structure with improved structure that can effectively solve the above problems.
[0006] This utility model provides an adjustable greenhouse heat storage and insulation composite structure, including: a greenhouse frame as an overall supporting skeleton, a circulating heat pipe assembly arranged on the greenhouse frame for heat dissipation, and a heat exchange component arranged on one side of the greenhouse frame for providing heat source power. The heat exchange component specifically includes a water tank, and a water pump for driving water circulation is fixedly installed on the bottom surface of the water tank. The water outlet of the water pump is connected to the water inlet of the circulating heat pipe assembly through a water delivery pipe assembly.
[0007] The outer surface of the tube body of the circulating heat pipe assembly is recessed to form a spiral flow channel. The spiral flow channel extends continuously in a spiral shape along the length of the circulating heat pipe assembly to increase the heat exchange area between the tube body and the air and induce turbulence in the fluid inside the tube.
[0008] Furthermore, a steam filter cover is fixed to the top of the water tank via a bracket. The bottom of the steam filter cover is not directly closed, but is connected to the top of the water tank via a vertically arranged liquid level flow pipe. Several steam exhaust pipes are vertically installed inside the steam filter cover. The bottom end of the steam exhaust pipe is fixedly connected to the inner bottom wall of the steam filter cover and communicates with the space inside the cover. A wavy guide groove is provided at the edge of the top port of the steam exhaust pipe. The wavy guide groove is used to disperse and guide the discharged steam to enhance the diffusion effect.
[0009] Preferably, the outer wall of the steam filter cover is connected to a steam filter screen, which covers the outer periphery of the steam filter cover and is used to physically filter the steam discharged from the steam pipe and filling the area of the steam filter cover, intercepting scale particles or impurities that may be carried in the steam and preventing them from polluting the air environment inside the greenhouse.
[0010] Preferably, the heat exchange component further includes a suction fan and a suction nozzle connected to the air inlet of the suction fan. The suction fan is fixedly installed on one side of the greenhouse frame, and the air inlet of the suction nozzle is set towards the area where the steam filter cover and the steam pipe are located. It is used to force the cold air in the greenhouse to be drawn in and flow through the surface of the high-temperature steam pipe for heat exchange, and then exhaust the heated air back into the greenhouse to achieve circulation.
[0011] Preferably, the water tank has a vertically arranged partition inside, which divides the internal space of the water tank into a heating zone and a pumping zone. A heating module for heating water is fixedly installed in the heating zone, and a liquid level sensor for real-time monitoring of the water level is installed on the side wall of the heating zone. The water pump is located in the pumping zone. Through the separation effect of the partition, the interference of bubbles generated by heating on the pumping stability can be reduced.
[0012] Preferably, a water storage tank for collecting overflow water is provided on one side of the water heater. The side wall of the water heater and the side wall of the water storage tank are connected by a U-shaped overflow pipe. The height of the pipe opening at one end of the U-shaped overflow pipe is set higher than the preset normal working liquid level in the water heater, so that excess hot water is automatically guided to the water storage tank when the water level is too high.
[0013] Preferably, the adjustable greenhouse heat storage and insulation composite structure further includes an auxiliary component for purifying the water source. The auxiliary component includes a water supply tank and an inlet pipe connected between the water supply tank and the heating tank. A filter carrier mesh is horizontally fixed inside the water supply tank, and a composite filter material filling layer is laid on the filter carrier mesh to adsorb harmful substances in the water before it enters the system.
[0014] Preferably, both the inlet pipe and the delivery pipe assembly are equipped with electromagnetic valves. The electromagnetic valves are used to precisely control the on / off state of the pipeline according to control commands, so as to realize automated water replenishment and heating circulation.
[0015] Preferably, a main control cabinet is also provided on one side of the heat exchange component. The main control cabinet is electrically connected to the heating module, the liquid level sensor, the suction fan, the water pump and the solenoid valve, respectively, for centralized control of the operation of each electrical component and realizing intelligent management of the system.
[0016] This utility model has the following beneficial effects:
[0017] 1. This utility model solves the problems of limited heat exchange area and uneven heat flow diffusion leading to slow heating in existing greenhouse heating equipment by opening spiral flow grooves on the surface of the circulating heat pipe assembly and setting wavy guide grooves at the top of the steam pipes inside the steam filter hood. It achieves the technical effect of significantly increasing the heat exchange contact area, enhancing fluid turbulence through the spiral structure to improve heat transfer efficiency, and optimizing the steam diffusion pattern through the wavy structure, thereby achieving rapid and uniform heating inside the greenhouse.
[0018] 2. This utility model pre-treats the water source by setting a filter carrier mesh and a composite filter material filling layer inside the water supply tank. This solves the problem of scaling, corrosion and blockage of heating modules and circulation pipelines caused by the direct use of unpurified water sources in the prior art. It achieves the technical effects of effectively adsorbing metal ions and suspended impurities in the water, softening the water quality, protecting the heating and pumping components, extending the service life of the equipment and reducing maintenance costs.
[0019] 3. This utility model solves the safety hazard of water level overflow caused by thermal expansion of water or excessive water replenishment during the heating process by setting a U-shaped overflow pipe between the water heating tank and the water storage tank. It achieves the technical effects of automatically balancing the liquid level, safely guiding excess hot water to the water storage tank for temporary storage, preventing scalding accidents, and realizing water resource recycling. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of an adjustable greenhouse heat storage and insulation composite structure proposed in this utility model.
[0021] Figure 2This is a schematic diagram of the water tank part of an adjustable greenhouse heat storage and insulation composite structure proposed in this utility model.
[0022] Figure 3 This is a schematic diagram of the steam filter cover of an adjustable greenhouse heat storage and insulation composite structure proposed in this utility model.
[0023] Figure 4 for Figure 3 Enlarged view of point A in the middle;
[0024] Figure 5 This is a schematic diagram of the filter carrier mesh portion of an adjustable greenhouse heat storage and insulation composite structure proposed in this utility model.
[0025] Figure 6 This is a schematic diagram of the spiral flow channel portion of an adjustable greenhouse heat storage and insulation composite structure proposed in this utility model.
[0026] Legend:
[0027] 1. Install the greenhouse frame; 2. Heat exchange components; 201. Water tank; 202. Heating module; 203. Liquid level sensor; 204. U-shaped overflow pipe; 205. Water storage tank; 206. Steam filter screen; 207. Steam filter cover; 208. Steam pipe; 209. Corrugated guide channel; 210. Fan; 211. Air suction nozzle; 212. Partition plate; 213. Water pump; 214. Water delivery pipe assembly; 215. Install circulating heat pipe assembly; 216. Spiral flow channel; 217. Liquid level flow pipe; 3. Auxiliary components; 301. Water supply tank; 302. Water inlet pipe; 303. Filter support screen; 304. Composite filter material filling layer; 4. Solenoid valve; 5. Main control cabinet. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] Please refer to Figures 1 to 6 This utility model provides an adjustable greenhouse heat storage and insulation composite structure, which aims to solve the problems of low heat exchange efficiency of single medium circulation, limited contact area between air and heat source, and easy scaling of pipes due to lack of water purification function in existing greenhouse insulation structures.
[0030] like Figure 1 and Figure 2As shown, the main body of the adjustable greenhouse heat storage and insulation composite structure includes a greenhouse frame 1 and a circulating heat pipe assembly 215 arranged on the greenhouse frame 1. The greenhouse frame 1 serves as the overall support skeleton and is usually constructed of metal profiles to support the covering film and internal piping system. The circulating heat pipe assembly 215 is laid in a meandering or arrayed manner on the top and sides of the greenhouse frame 1 to radiate heat into the greenhouse space after hot water is introduced. In order to significantly improve the heat exchange efficiency, the outer surface of the circulating heat pipe assembly 215 is recessed to form a spiral flow channel 216. The spiral flow channel 216 extends continuously in a spiral shape along the length of the circulating heat pipe assembly 215. This structural design not only increases the contact area between the pipe and the air, but also generates disturbances when the liquid flows inside the pipe and the air convection outside the pipe, thereby breaking the boundary layer and enhancing the heat transfer effect.
[0031] A heat exchange component 2 is installed on the ground on one side of the greenhouse frame 1. The heat exchange component 2 serves as the core of the heat energy supply and exchange of the entire system. It mainly includes a water tank 201. A water pump 213 is fixedly installed on the bottom of the water tank 201. The water outlet of the water pump 213 is sealed and connected to the water inlet of the circulating heat pipe assembly 215 through a water delivery pipe assembly 214. The water delivery pipe assembly 214 is made of heat-resistant pipe material to ensure that the heated fluid in the water tank 201 is stably delivered to the heat dissipation pipes at the top of the greenhouse for circulation. A steam filter cover 207 is fixed above the water tank 201 by a bracket. The steam filter cover 207 is an inverted cover structure or a box structure. Its bottom is not directly closed, but is connected to the top of the water tank 201 through a liquid level flow pipe 217. The liquid level flow pipe 217 serves as a channel for steam to rise, introducing the high-temperature water vapor generated in the water tank 201 into the space above.
[0032] like Figure 3 and Figure 4 As shown, several steam pipes 208 are vertically installed in the inner cavity of the steam filter cover 207. These steam pipes 208 are arranged in an array. The bottom end of the steam pipes 208 is fixedly connected to the inner bottom wall of the steam filter cover 207 or directly welded to it, so that the steam entering the bottom of the inner cavity of the steam filter cover 207 can enter the interior of each steam pipe 208. In order to further optimize the shape of the steam outflow and increase the contact and mixing effect between the steam and the surrounding air, a wavy guide groove 209 is provided at the edge of the top port of the steam pipe 208. The wavy guide groove 209 makes the pipe opening have a toothed structure with high and low undulations. When the steam overflows from the pipe opening, it will be dispersed into multiple fine streams or form turbulent diffusion, avoiding direct flow and loss, thereby forming a continuous high temperature and high humidity heat exchange environment in the area of the steam filter cover 207.
[0033] To address the issues of heat exchange efficiency and cleanliness, a steam filter screen 206 is connected to the outer wall of the steam filter hood 207. The steam filter screen 206 covers the outer periphery of the steam filter hood 207 and is used to physically intercept and filter the steam discharged from the steam pipe 208 and filling the area of the hood, removing scale particles or impurities carried by the steam and preventing them from spreading into the greenhouse with the hot air and polluting the environment. At the same time, the steam filter screen 206 itself also plays a certain role in equalizing the flow, making the hot air flow diffuse outward more gently.
[0034] To achieve active forced convection heat exchange, the heat exchange component 2 also includes a suction fan 210 and a suction nozzle 211 connected to the air inlet of the suction fan 210. The suction fan 210 is fixedly installed on one side of the greenhouse frame 1 or on a specific support platform and is connected to the control system via a cable. The suction port of the suction nozzle 211 is carefully designed to face the area where the steam exhaust pipe 208 is located, preferably directly or obliquely facing the open side of the steam filter cover 207 or the steam accumulation area. When the suction fan 210 is working, the negative pressure generated will quickly draw in the cold air in the greenhouse, forcing the cold air to flow through the surface of the high-temperature steam exhaust pipe 208 and the surrounding area of the steam filter cover 207. During this process, the cold air mixes intensely with the high-temperature pipe wall and the overflowing hot steam, and the temperature rises rapidly. Subsequently, the heated air is discharged back into the greenhouse space by the suction fan 210, forming a hot air circulation and improving the heat exchange rate.
[0035] Regarding the internal structure of the water tank 201, in order to ensure functional independence and operational stability, a partition 212 is vertically installed in the inner cavity of the water tank 201. The partition 212 is made of heat-resistant and well-sealed material, which physically divides the internal space of the water tank 201 into two independent areas: a heating chamber and a pumping chamber. The heating chamber is the main place for steam generation, and a heating module 202 is installed inside it. The heating module 202 can be an electric heating tube, a resistance wire, or other forms of electric heating element, which is used to quickly heat the stored water. A liquid level sensor 203 is also installed on the inner wall of the heating chamber to monitor water level changes in real time and prevent dry burning or overflow. The water pump 213 is placed in the pumping chamber. This area is relatively independent, which can reduce bubble interference and ensure pumping efficiency. At the same time, the bottom of the partition 212 or a specific position is provided with a connecting hole or channel to ensure water level balance between the two chambers.
[0036] In addition, to prevent water level loss or expansion overflow during heating, which could cause safety hazards, a water storage tank 205 is installed side by side on one side of the water tank 201. A U-shaped overflow pipe 204 connects the side wall of the water tank 201 and the side wall of the water storage tank 205. The U-shaped overflow pipe 204 is in the shape of an inverted U or a similar communicating vessel structure. The height of the pipe opening at one end of the water tank 201 is set to be higher than the installation height of the heating module 202 and at the preset safe maximum water level. When the water level in the water tank 201 exceeds this height due to excessive water replenishment or thermal expansion, the excess water will automatically flow into the water storage tank 205 through the U-shaped overflow pipe 204 for temporary storage. It can be replenished or manually discharged when needed, thus establishing a safe and reliable liquid level balance mechanism.
[0037] Based on the above embodiments, the present invention may further include the following preferred technical solutions:
[0038] As a preferred embodiment, to ensure the purity of the water entering the system and prevent scaling or corrosion of the pipes due to long-term heating, this structure also introduces an auxiliary component 3. The auxiliary component 3 includes a water supply tank 301 and an inlet pipe 302 connecting the water supply tank 301 and the heating tank 201. The water supply tank 301 serves as a pre-storage water container, and its internal structure is specially designed, such as... Figure 5 As shown, a filter carrier mesh 303 is horizontally fixed inside the water supply tank 301. The filter carrier mesh 303 is made of stainless steel wire mesh or corrosion-resistant plastic mesh, and has sufficient mechanical strength to support the upper material. A composite filter material filling layer 304 is tightly laid on the upper surface of the filter carrier mesh 303. The composite filter material filling layer 304 is composed of activated carbon, quartz sand or special descaling resin and other materials. When raw water is injected into the water supply tank 301, it must first pass through the composite filter material filling layer 304 and the filter carrier mesh 303, thereby effectively adsorbing heavy metal ions, suspended particles and some calcium and magnesium ions in the water, realizing the softening and purification of water quality. The purified water then flows into the water heating tank 201 by gravity or is pumped through the water inlet pipe 302.
[0039] As another preferred embodiment, in order to achieve automated and precise control of fluid transportation, electromagnetic valves 4 are installed on both the inlet pipe 302 and the water delivery pipe assembly 214. As an actuator, the electromagnetic valve 4 can quickly respond to electrical signals to open or close the pipeline. By controlling the electromagnetic valve 4 on the inlet pipe 302, the amount of water supplied from the water supply tank 301 to the heating tank 201 can be precisely adjusted to prevent overflow or dry burning. Similarly, by controlling the electromagnetic valve 4 on the water delivery pipe assembly 214, the hot water circulation can be started and stopped according to the temperature requirements in the greenhouse, realizing on-demand heating and greatly improving the system's intelligence level and energy utilization rate.
[0040] As another preferred embodiment, in order to achieve integrated intelligent management of the entire system, a main control cabinet 5 is also provided on one side of the heat exchange component 2. The main control cabinet 5 integrates electrical components such as a PLC controller, relay module and power supply module. The main control cabinet 5 is electrically connected to the heating module 202, liquid level sensor 203, suction fan 210, water pump 213 and each solenoid valve 4 through signal cables. The operator can set parameters such as target temperature, water level threshold and circulation cycle through the touch screen or buttons on the main control cabinet 5 panel. The system will automatically control the opening and closing of the water inlet solenoid valve 4 according to the water level signal fed back by the liquid level sensor 203, and automatically adjust the power of the heating module 202 and the start and stop of the suction fan 210 and water pump 213 according to the temperature signal fed back by the temperature control probe in the greenhouse, thereby realizing fully automatic operation without human intervention.
[0041] The working principle of this adjustable greenhouse heat storage and insulation composite structure is as follows:
[0042] Before the system is started, the operator first sets the target temperature and operating parameters in the greenhouse through the main control cabinet 5. In the initial state, if the liquid level sensor 203 detects that the water level in the water tank 201 is too low, the main control cabinet 5 will open the solenoid valve 4 on the water inlet pipe 302. The water in the water tank 301 is injected into the water tank 201 after being filtered and purified through the composite filter material filling layer 304 and the filter carrier mesh 303 until the water level reaches the preset height.
[0043] During the heating and steam generation stage, the heating module 202 is powered on and continuously heats the water stored in the heating chamber of the water tank 201. As the water temperature rises, the liquid surface begins to boil and generates a large amount of high-temperature steam. Since the top of the water tank 201 is connected to the steam filter cover 207 above through the liquid level flow pipe 217, and the steam filter cover 207 is equipped with an array of distributed steam exhaust pipes 208, the high-temperature steam will rise along these pipes and flow into the steam exhaust pipes 208, and finally overflow from the pipe opening with the wave-shaped guide groove 209 at the top. The wave-shaped guide groove 209 not only guides the steam to diffuse evenly, but also increases the surface area of the steam outflow, so that it forms a stable high-temperature and humid environment in the steam filter cover 207. Subsequently, the steam is further cleaned through the outer steam filter screen 206 and dissipates heat outward.
[0044] In the heat exchange circulation stage, air circulation and water circulation are carried out simultaneously. In terms of air circulation, the suction fan 210 starts under the command of the control system, forcibly sucking in the cooler air in the greenhouse through the suction nozzle 211 and guiding it to the steam pipe 208 area. Here, the cold air directly contacts the high-temperature pipe wall and hot steam for heat exchange, and after rapid heating, it is discharged back into the greenhouse, realizing rapid heating of the air. In terms of water circulation, the water pump 213 operates synchronously, extracting the hot water in the pump chamber of the water tank 201 and sending it to the circulating heat pipe group 215 through the water delivery pipe group 214. When the hot water flows through the pipe with the spiral flow groove 216, the turbulence effect caused by the spiral groove and the increased heat dissipation area can efficiently radiate heat to the surrounding environment, realizing continuous heat preservation.
[0045] During the adjustment and safety protection phase, if the water level in the heating tank 201 exceeds the safety warning line due to thermal expansion of the water, the excess water will automatically flow back to the storage tank 205 through the U-shaped overflow pipe 204 to prevent overflow. When the temperature inside the greenhouse reaches the set value, the main control cabinet 5 will automatically adjust the power of the heating module 202 or stop the operation of each pump and enter the heat preservation standby state, thereby realizing the efficient, safe and automated operation of the entire system.
[0046] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. An adjustable greenhouse heat storage and insulation composite structure, comprising a greenhouse frame (1) and a circulating heat pipe assembly (215) arranged on the greenhouse frame (1); Its features are, A heat exchange component (2) is provided on one side of the installation frame (1). The heat exchange component (2) includes a water tank (201). A water pump (213) is fixedly installed on the bottom surface of the water tank (201). The water outlet of the water pump (213) is connected to the water inlet of the circulating heat pipe assembly (215) through a water delivery pipe assembly (214). The outer surface of the circulating heat pipe assembly (215) is provided with a spiral flow groove (216), which extends spirally along the length of the circulating heat pipe assembly (215). A steam filter cover (207) is provided above the water tank (201). The bottom of the steam filter cover (207) is connected to the top of the water tank (201) through a liquid level flow pipe (217). Several steam pipes (208) are vertically installed inside the steam filter cover (207). The pipe wall of the steam pipe (208) is connected to the inner cavity of the steam filter cover (207), and a wave-shaped guide groove (209) is provided at the top of the steam pipe (208).
2. The adjustable greenhouse heat storage and insulation composite structure according to claim 1, characterized in that, The outer wall of the steam filter hood (207) is connected to a steam filter screen (206), which surrounds the outer periphery of the steam filter hood (207) and communicates with the internal space of the steam filter hood (207).
3. The adjustable greenhouse heat storage and insulation composite structure according to claim 1, characterized in that, The heat exchange assembly (2) also includes a suction fan (210), the air inlet of which is connected to a suction nozzle (211), the air outlet of which is arranged facing the area where the steam filter cover (207) and the steam pipe (208) are located, for guiding external air to the surface of the steam pipe (208) for heat exchange.
4. The adjustable greenhouse heat storage and insulation composite structure according to claim 3, characterized in that, The water tank (201) is equipped with a partition (212) inside, which divides the internal space of the water tank (201) into a heating zone and a pumping zone. The water pump (213) is located in the pumping zone. A heating module (202) is fixedly installed in the heating zone. A liquid level sensor (203) is installed on the side wall of the heating zone.
5. The adjustable greenhouse heat storage and insulation composite structure according to claim 1, characterized in that, A water storage tank (205) is provided on one side of the water heating tank (201). The side wall of the water heating tank (201) and the side wall of the water storage tank (205) are connected by a U-shaped overflow pipe (204). The height of the water inlet end of the U-shaped overflow pipe (204) is higher than the preset normal working liquid level in the water heating tank (201).
6. The adjustable greenhouse heat storage and insulation composite structure according to claim 4, characterized in that, The structure also includes an auxiliary component (3), which includes a water supply tank (301) and an inlet pipe (302) connecting the water supply tank (301) and the boiling water tank (201). A filter carrier net (303) is horizontally arranged inside the water supply tank (301), and a composite filter material filling layer (304) is laid on the filter carrier net (303).
7. The adjustable greenhouse heat storage and insulation composite structure according to claim 6, characterized in that, Solenoid valves (4) are installed on both the water inlet pipe (302) and the water delivery pipe assembly (214).
8. The adjustable greenhouse heat storage and insulation composite structure according to claim 7, characterized in that, A main control cabinet (5) is also provided on one side of the heat exchange component (2). The main control cabinet (5) is electrically connected to the heating module (202), the liquid level sensor (203), the suction fan (210), the water pump (213), and the solenoid valve (4).