Fast-assembly type water curtain heat storage and release system of assembly type greenhouse

Abstract

The utility model discloses a quick-assembly type water curtain heat storage and release system for an assembly type greenhouse, and belongs to the field of greenhouse agricultural machinery. Comprising a rear wall water heat storage device, a rear slope water heat storage device and a control box, the rear wall water heat storage device comprises a corrugated pipe water tank, the corrugated pipe water tank is communicated with the water inlet end of a rear wall water heat storage water curtain through a water feeding pipeline, and the water outlet end of the rear wall water heat storage water curtain is connected with the corrugated pipe water tank through a water return pipeline; the rear slope water heat storage device comprises a liquid storage tank, the liquid storage tank is connected with a rear slope water heat storage water curtain through a rear slope water heat storage water feeding pipe, and the rear slope water heat storage water curtain is connected back to the liquid storage tank through a rear slope water heat storage water return pipeline; the rear wall water heat storage water curtain is composed of a heat collecting and releasing hot water bag, the structure is simple, modular fast installation can be achieved, and the installation cost is low. The system is simple and efficient, the heat storage and release functions are achieved through the water bag type water curtain, the problem that crop roots are low in temperature in winter is solved, and a nutrient solution or heated water can be recycled for irrigation through back slope water heat storage.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of greenhouse agricultural machinery, especially relates to a quick -witted water curtain heat storage system of assembly type greenhouse. BACKGROUND

[0002] The water heat storage of the assembly type sunlight greenhouse is mainly important heat storage and release facilities for realizing winter production without heating. The assembly type sunlight greenhouse has no rear wall, and the wall body is an important heat storage and release structure of the sunlight greenhouse. The lack of the wall body heat storage leads to low temperature at night, low temperature of crop root system in winter and other problems, which limits the growth of crops and causes yield reduction or even absolute loss. The traditional heating mode has high energy consumption and cost, and is not conducive to sustainable development.

[0003] The existing sunlight greenhouse water heat storage has the defects of high cost, difficult installation and construction, complex system, large space occupation and poor heat exchange efficiency. The greenhouse row heat storage water tank is composed of a metal water tank shell and a plastic film sleeve, and is arranged on the inner side of the rear wall of the greenhouse. Water is injected to realize energy migration. The metal has high cost, occupies space on the rear wall, and has poor heat dissipation efficiency through the ground.

[0004] The water heat storage self-regulating greenhouse is provided with a tubular heat absorbing water bag arranged vertically and closely on the rear wall to form a water curtain wall. The tubular water bag is expanded and has the risk of water leakage under the heat of the rear wall, and the passive heat exchange efficiency is poor.

[0005] The sunlight greenhouse water circulation heat storage device is complex, including a heat storage layer, a light reflection and temperature increasing layer and a heat insulation layer, and the internal air bubble is difficult to implement. When the device is installed on the front roof of the greenhouse, the installation is difficult and the cost is high.

[0006] The wall-mounted greenhouse solar water circulation heat storage device is provided with a heat preservation tank for storing water, which is hung on the rear wall. There are safety hazards, liquid leakage risks, and large space occupation. The soil is heated by the ground heat pipe at night, and the heat exchange efficiency is poor.

[0007] The water circulation heat preservation and heat storage system dome greenhouse adopts a heat collecting pipe to convert light energy into heat energy. The energy is accumulated by water circulation heat collection and used for night heat release to ensure winter production. The system has high cost investment, occupies greenhouse planting space and has complex pipeline design.

[0008] The sunlight heat collecting water circulation heat storage wall is provided with a circulating water heat storage pipeline encapsulated in a steel structure wall frame. The installation cost is high, the device is complex, and the heat exchange process is complex and inefficient.

[0009] At present, the system is complex, the installation and construction are difficult, the cost is high, and the space occupation is large, which are the factors restricting the popularization of the water circulation heat storage and release device. SUMMARY

[0010] In view of the deficiencies of the prior art, the utility model discloses a kind of assembled greenhouse quick-mounting water curtain heat storage system, to improve the temperature of sunlight greenhouse at night and root temperature, realize energy time-space migration and efficient utilization, improve greenhouse crop yield.

[0011] The technical scheme adopted by the utility model is: a kind of assembled greenhouse quick-mounting water curtain heat storage system, and its technical key points are: a rear wall water heat storage device arranged in the greenhouse and a rear slope water heat storage device hung on the rear slope framework, the rear wall water heat storage device includes a corrugated pipe water tank, which is connected to the water inlet end of the rear wall water heat storage water curtain through an upper water pipeline, and the water outlet end of the rear wall water heat storage water curtain is connected to the corrugated pipe water tank through a return water pipeline;The rear slope water heat storage device includes a liquid storage tank, which is connected to the rear slope water heat storage water curtain through a rear slope water heat storage upper water pipe, and the rear slope water heat storage water curtain is connected back to the liquid storage tank through a rear slope water heat storage return water pipeline, and the rear slope water heat storage water curtain is mainly composed of another rear wall water heat storage water curtain installed on the steel mesh structure above the rear slope framework.

[0012] Further, the rear wall water heat storage water curtain is mainly composed of a plurality of series heat storage water bags, each of which is internally hot-melted with a water pipe, the water pipes of each heat storage water bag are connected to each other in series through pipe joints, the water outlet of each heat storage water bag is connected to the outlet pipe through a tee joint, and the outlet pipes are connected to each other through pipe joints.

[0013] Further, a pressure relief valve is installed at the water inlet pipe and the pipe joint to equalize the water pressure inside each heat storage water bag.

[0014] Further, the heat storage water bag is internally pasted with a hydrophobic non-woven fabric on the sunny side to form a water curtain.

[0015] Further, the rear slope water heat storage water curtain is adjusted in angle by a turnover mechanism, the turnover mechanism includes a motor, the output shaft of the motor is drivingly connected to a winding lever installed above the rear slope framework, the winding lever is drivingly connected to a rack, the rack is connected to the square steel framework, and the rack moves with the winding lever and drives the rear slope water heat storage water curtain on the square steel framework to move.

[0016] Further, it further includes an irrigation circuit, the liquid storage tank is connected to the cultivation frame through a nutrient solution supply pipe, the nutrient solution supply pipe is connected to a water pump, and the cultivation frame is connected to the liquid storage tank through a nutrient solution return pipe.

[0017] Further, a reflective film is installed on the east and west gables in the greenhouse.

[0018] The utility model discloses a beneficial effect is: this assembly type greenhouse quick -mounting type water curtain heat storage system, including rear wall water heat storage device and the rear slope water heat storage device of suspension in the greenhouse and control box, and rear wall water heat storage device is connected by the corrugated pipe water tank rear wall water heat storage water curtain again and links back to the corrugated pipe water tank;Rear slope water heat storage device includes liquid storage tank, and liquid storage tank connects rear slope water heat storage water curtain again and links back to liquid storage tank. Among them, the rear wall water heat storage water curtain is formed by the heat collection and release water bag, and the heat collection and release water bag is made of water curtain material HDPE film inner adhesive hydrophobic non -woven fabric, simple structure can realize modularization quick -mounting, and the installation cost is low;Water curtain is close to wall, and the thickness can be ignored, and the water storage tank is placed in the ground, and the occupied space is small;The inner surface of water bag type water curtain is adhered with hydrophobic non -woven fabric to the sun, and the pressure relief valve ensures that the water flow forms uniform water curtain, and the both sides of gable are pasted reflective film, and the heat exchange capacity is improved;System is simple and efficient, and the heat storage and release function is realized by water bag type water curtain, and the heat collector and heat radiator are integrated together, and heat exchange with air;Solve the low temperature of crop root system in winter, and the rear slope water heat storage can circulate nutrient solution or heated water for irrigation;On the premise of guaranteeing function, it is possible to have better performance price ratio. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment, and obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0020] Figure 1 It is the whole schematic view of heat storage and release system in the embodiment of the utility model;

[0021] Figure 2 It is the schematic diagram of quick -mounting water curtain system of rear wall in the embodiment of the utility model;

[0022] Figure 3 It is the schematic diagram of heat collection water bag quick -mounting part in the embodiment of the utility model;

[0023] Figure 4 It is the schematic diagram of equipment control logic in the embodiment of the utility model;

[0024] The serial numbers in the drawing are explained as follows: 1, pre-buried underground corrugated pipe water tank; 2, hot water collecting and storing bag; 3, water outlet; 4, first water pump; 5, pressure relief valve; 6, water inlet valve; 7, pipe joint; 8, water inlet pipeline; 9, water return pipeline; 10, control cabinet; 11, air temperature control probe; 12, water temperature control probe; 13, tee joint; 14, wireless communication module; 15, greenhouse; 16, rack gear; 17, rack gear connecting piece; 18, cultivation frame; 19, square steel framework; 20, winding lever; 21, back slope water storage water storage water inlet pipeline; 22, back slope water storage water return pipeline; 23, liquid storage tank; 24, second water pump; 25, nutrient solution supply pipeline; 26, nutrient solution return pipeline; 27, third water pump; 28, back slope water storage water inlet valve; 29, nutrient solution water inlet valve. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the utility model will be explained in further detail below in combination with the accompanying drawings. Figures 1-4 and the specific embodiment.

[0026] See Figures 1-3 The specific structure of the fast-assembly water curtain system of the assembled sunlight greenhouse in the embodiment is as follows: it comprises a greenhouse 15, a water storage water curtain device placed underground of the greenhouse 15, a back slope water storage water curtain device hung on a back slope framework above the greenhouse 15 and a control cabinet 10. The back wall water storage water curtain device comprises a corrugated pipe water tank 1, the corrugated pipe water tank 1 is communicated with a water inlet end of the back wall water storage water curtain through a water inlet pipeline 8, a water outlet end of the back wall water storage water curtain is connected with the corrugated pipe water tank 1 through a water return pipeline 9, a first water pump 4 (power 1000w) and a water inlet valve 6 are connected on the water inlet pipeline 8, thereby forming a complete circulating pipeline. The underground corrugated pipe water tank 1 in the embodiment is pre-buried underground of a human passage of the greenhouse, the volume is determined according to the water demand of the heating load of the greenhouse, the volume of the corrugated pipe water tank 1 of each 667m2 assembled greenhouse is 10-12m3, the volume of the liquid storage tank is 3m3, the underground corrugated pipe water tank 1 is composed of a leakage preventing layer, a heat preservation layer and a sealing layer, thereby avoiding heat loss.

[0027] The back slope water storage device in the embodiment comprises a liquid storage tank 23, the liquid storage tank 23 is connected with the back slope water storage water curtain through a back slope water storage water inlet pipeline 21, the back slope water storage water curtain is connected back to the liquid storage tank 23 through a back slope water storage water return pipeline 22, a second water pump 24 (power 750w) and a back slope water storage water inlet valve 28 are connected on the back slope water storage water inlet pipeline 21, the back slope water storage water curtain is mainly composed of another back wall water storage water curtain and a square steel framework 19, the square steel framework 19 is welded on the back slope framework.

[0028] The back wall water heat storage water curtain of the embodiment is composed of a plurality of parallelly arranged heat collecting and releasing water bags 2, the surface of the heat collecting and releasing water bag 2 is made of black HPDE anti-seepage film, and can fully absorb radiant heat. Each heat collecting and releasing water bag 2 is quickly connected with the upper water pipeline 8 through the pipe joint 7, a plurality of water outlets 3 are arranged below the heat collecting and releasing water bag 2, each water outlet is connected to a respective water outlet pipeline through a tee joint 13, and each water outlet pipeline is connected in series through the pipe joint 7 and communicates with the return water pipeline 9. The specific manufacturing method is that a circulating water pipe is arranged in the heat collecting and releasing water bag 2, 3-5 small holes are punched on the circulating water pipe, and the circulating water pipe is heat-sealed with the heat collecting and releasing water bag 2. The water inlet end and the water outlet end of the circulating water pipe on both sides of the heat collecting and releasing water bag 2 are used for facilitating and quick connecting and assembling with the pipe joint 7. A pressure relief valve 5 is arranged at the connection between the water pipe and the pipe joint 7, which is used for ensuring that the water pressure in each water bag is almost equal, and a uniform water curtain is formed. In order to facilitate the formation of a uniform water curtain, a hydrophobic non-woven fabric is pasted in the heat collecting and releasing water bag 2 facing the sun, the thickness of the water curtain is 3-5 mm, the width is 1.2 m, and the height is 2 m. In the back slope water heat storage water curtain, the heat collecting and releasing water bag 2 is connected with the square steel framework 19 through the clamping spring in the clamping film groove fixed on the square steel framework 19.

[0029] The embodiment also includes a water temperature control probe 12 and an air temperature probe 11. The water temperature control probe 12 is arranged in the underground corrugated pipe water tank 1 and connected with the control cabinet 10, and the air temperature probe 11 is arranged in the greenhouse and also connected with the control cabinet 10. The water temperature collected by the water temperature control probe 12 and the air temperature collected by the air temperature probe 11 are simultaneously transmitted to the control cabinet 10.

[0030] The back slope water heat storage water curtain of the embodiment is also connected with a turnover mechanism. The turnover mechanism includes a motor, the output shaft of the motor is in transmission connection with a winding lever 20 installed above the back slope framework, the winding lever 20 is in transmission connection with a rack 16, the rack 16 is connected with the square steel framework 19 through a rack connecting piece 17, and the position of the back slope suspended water curtain can be adjusted by rotating the winding lever 20 to control the movement of the rack 16, so that the solar radiation and the air waste heat at the top of the greenhouse can be better absorbed.

[0031] A reflective film is arranged on the east and west gables of the greenhouse 15, which can supplement light in the greenhouse in the morning and evening.

[0032] In the embodiment, a nutrient solution supply pipe 25 is also inserted into the liquid storage tank 23. The water inlet end of the nutrient solution supply pipe 25 is connected with a third water pump 27 (500 W) and a nutrient solution water inlet valve 29, the water outlet end is communicated with a nutrient solution return pipe 26 through the cultivation frame 18, and the nutrient solution return pipe 26 returns to the liquid storage tank 23, so that a complete irrigation route is formed.

[0033] The control cabinet 10 of the embodiment is integrated with a wireless communication module 14, which is connected with the first water pump 4, the second water pump 24, the third water pump 27, the upper water valve 6, the back slope water heat storage upper water 28 and the nutrient solution upper water valve 29. The control cabinet 10 realizes the heat storage and release function of the water curtain system by receiving the temperature information of the probe and feeding back the opening and closing of the water pump and the valve according to the set temperature.

[0034] The control process of the embodiment is as follows:

[0035] When the weather is fine during the day, the air temperature probe 11 detects that the greenhouse temperature reaches 25 DEG C, the water-air temperature difference is more than 5 DEG C, the wireless communication module 14 receives the signal, the control cabinet 10 starts the water pump 4 and the water pump 24, and connects the upper water valve 6 and the back slope water heat storage upper water valve 28, and completes the water circulation loop. When the water-air temperature difference is less than 2 DEG C, the water pump 4 and the water pump 24 are disconnected, and the upper water valve 6 and the back slope water heat storage upper water valve 28 are closed, and the water circulation stops running.

[0036] When the air temperature probe 11 detects that the greenhouse temperature is lower than 10-15 DEG C at night, the wireless communication module 14 receives the signal, and the control cabinet 10 starts the water pump 4 and the water pump 24, and connects the upper water valve 6 and the back slope water heat storage upper water valve 28, and the water circulation releases heat, and the water bag 2 releases heat to the inside of the greenhouse. When the detected temperature reaches 16-18 DEG C, the water circulation stops running.

[0037] When the water temperature monitoring probe 12 detects that the water temperature of the liquid storage tank 24 reaches 28 DEG C-32 DEG C, and the water temperature of the cultivation rack is lower than 15 DEG C, the wireless communication module 14 receives the signal, the control cabinet 10 starts the water pump 27, and connects the nutrient solution upper water valve 29. The heated water or nutrient solution is introduced into the cultivation rack 18 through the nutrient solution water supply pipe 25, so as to prevent the temperature of the crop root system from being too low and promote the growth and development of the crop.

[0038] The assembled sunlight greenhouse water bag type water curtain heat storage and release system can effectively collect the air waste heat and the solar radiation on the surface of the water bag through the water circulation mode, store the energy in the heat preservation water tank, release the heat at night when needed, ensure that the night temperature meets the plant growth conditions, and solve the problem of low temperature of the crop root system in winter.

[0039] The above merely illustrates the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A prefabricated greenhouse quick-installation water curtain heat storage and release system, characterized in that, The system includes a rear wall water heat storage device installed inside the greenhouse and a rear slope water heat storage device suspended on the rear slope frame. The rear wall water heat storage device includes a corrugated pipe water tank, which is connected to the inlet end of the rear wall water heat storage curtain via a water supply pipe. The outlet end of the rear wall water heat storage curtain is connected to the corrugated pipe water tank via a return water pipe. The rear slope water heat storage device includes a liquid storage tank, which is connected to the rear slope water heat storage curtain via a rear slope water heat storage supply pipe. The rear slope water heat storage curtain is connected back to the liquid storage tank via a rear slope water heat storage return water pipe. The rear slope water heat storage curtain is mainly composed of another rear wall water heat storage curtain installed on the steel mesh structure above the rear slope frame.

2. The prefabricated greenhouse quick-installation water curtain heat storage and release system as described in claim 1, characterized in that, The aforementioned rear wall water storage hot water curtain is mainly composed of multiple parallel hot water collection and release bags. Each hot water collection and release bag has a water pipe inside, which is connected in parallel to each other through pipe fittings. The water outlet of each hot water collection and release bag is connected to the water outlet pipe through a T-junction, and the water outlet pipes are connected to each other through pipe fittings.

3. The prefabricated greenhouse quick-installation water curtain heat storage and release system as described in claim 2, characterized in that, Each of the hot water collection bags has a water pipe inside, and a pressure relief valve is installed at the pipe joint to ensure that the water pressure inside each hot water collection bag is equal.

4. A prefabricated greenhouse quick-installation water curtain heat storage and release system as described in claim 2 or 3, characterized in that, The inside of the hot water collection bag, facing the sun, is covered with a hydrophobic non-woven fabric to form a water curtain.

5. The prefabricated greenhouse quick-installation water curtain heat storage and release system as described in claim 1, characterized in that, The angle of the back slope water storage hot water curtain is adjusted by a flipping mechanism. The flipping mechanism includes a motor, the output shaft of which is connected to a drive rod installed above the back slope frame. The drive rod is connected to a rack, which is connected to the square steel frame. The rack moves with the drive rod and drives the back slope water storage hot water curtain on the square steel frame.

6. The prefabricated greenhouse quick-installation water curtain heat storage and release system as described in claim 1, characterized in that, It also includes an irrigation circuit, in which the nutrient solution tank is connected to the cultivation rack via a nutrient solution supply pipe, the nutrient solution supply pipe is connected to a water pump, and the nutrient solution tank is connected to the cultivation rack via a nutrient solution return pipe.

7. The prefabricated greenhouse quick-installation water curtain heat storage and release system as described in claim 1, characterized in that, Reflective film was also installed on the east and west gable walls inside the greenhouse.

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