Greenhouse heat preservation device

Abstract

The utility model relates to a greenhouse heat preservation device which comprises a photo-thermal assembly, a water storage assembly, a circulation assembly and a control assembly. The photo-thermal assembly comprises a hollow photo-thermal pipe, a first valve is arranged at a water inlet of the photo-thermal pipe, and a second valve is arranged at a water outlet of the photo-thermal pipe; the water storage component is connected with the photo-thermal component through a water pipeline; the circulating assembly is arranged in the greenhouse and is connected with the water storage assembly; the control assembly is electrically connected with the first valve and the second valve. By arranging the photo-thermal assembly, photo-thermal conversion can be conducted through sunlight, hot water is continuously provided for the water storage assembly, the heating requirement of the circulating assembly for the greenhouse is met, and therefore electric energy needed by heating is saved, and the production cost is reduced. Meanwhile, by arranging the control assembly and the valve set which are electrically connected, automatic water inlet and outlet control over the photo-thermal assembly is achieved, the labor cost of hot water supply control is reduced, and the production efficiency can be further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of greenhouse, in particular to a greenhouse heat preservation device. BACKGROUND

[0002] Greenhouse is an important equipment for providing fresh vegetables for people in cold seasons such as autumn and winter. In order to ensure that the temperature of the greenhouse is suitable for crop growth, various methods need to be used to heat preservation. At present, most greenhouses use methods such as adding warm air machines to heat preservation in active heating. However, the cost of electricity is too high, which increases the price of fruits and vegetables and the cost of life. For example, Chinese patent CN202122074561.4 discloses an agricultural greenhouse winter heating device, which uses a warm air machine body to heat and sets an installation frame and an adjusting column on the warm air machine body to adjust the temperature. It is inevitable to use electricity for heating, so the heat preservation cost is high. In addition, in some greenhouses using working medium (such as water) circulating heating equipment, the management of hot water supply of the heating equipment increases the labor cost, which makes the price of fruit and vegetable products more expensive and affects the quality of people's life. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a greenhouse heat preservation device to solve the problems of high cost of electricity and labor, low planting efficiency, and high product price of the existing heat preservation equipment.

[0004] According to the greenhouse heat preservation device provided by the present application, the greenhouse heat preservation device comprises:

[0005] The light and heat component comprises a hollow light and heat pipe, the water inlet of the light and heat pipe is provided with a first valve, and the water outlet of the light and heat pipe is provided with a second valve;

[0006] The water storage component is connected to the light and heat component through a water conveying pipeline;

[0007] The circulation component is arranged in the greenhouse and is connected to the water storage component;

[0008] The control component is electrically connected to the first valve and the second valve.

[0009] In some embodiments, the light and heat component is provided with a first temperature sensor and a liquid level sensor, and the first temperature sensor and the liquid level sensor are electrically connected to the control component.

[0010] In some embodiments, the light and heat component further comprises a light condensing plate, the light condensing plate is installed below the light and heat pipe, and the light condensing axis of the light condensing plate passes through the light and heat pipe.

[0011] In some embodiments, the light-heat assembly further comprises a mounting rack arranged obliquely, and an oblique angle of the mounting rack is adjustable; the light-heat tube and the light-collecting plate are obliquely mounted on the mounting rack.

[0012] In some embodiments, the mounting rack comprises a high support base, a low support base and a mounting rod; the mounting rod is arranged obliquely between the high support base and the low support base; the high support base is a liftable structure; the light-heat tube and the light-collecting plate are jointly mounted on the mounting rod.

[0013] In some embodiments, the mounting rod is rotationally connected with the high support base and the low support base; the light-heat assembly further comprises a driving motor, an output end of the driving motor is connected with the mounting rod, and the driving motor is electrically connected with the control assembly.

[0014] In some embodiments, a plurality of light-heat assemblies are arranged, and the plurality of light-heat assemblies are connected in parallel to the water storage assembly.

[0015] In some embodiments, the light-heat assembly further comprises a first water pump, the first water pump is arranged at one side of a water inlet of the light-heat tube, and the first water pump is electrically connected with the control assembly.

[0016] In some embodiments, the circulating assembly comprises a circulating pipeline and a second water pump; the circulating pipeline passes through the greenhouse, and both ends of the circulating pipeline are connected to the water storage assembly; the second water pump is arranged on the circulating pipeline and is electrically connected with the control assembly.

[0017] In some embodiments, the greenhouse heat preservation device further comprises an electric heating assembly; the electric heating assembly is arranged at the water storage assembly and is electrically connected with the control assembly; the water storage assembly is provided with a second temperature sensor, and the second temperature sensor is electrically connected with the control assembly.

[0018] The technical scheme of the present application, the greenhouse heat preservation device comprises a light-heat assembly, a water storage assembly, a circulating assembly and a control assembly; the light-heat assembly comprises a hollow light-heat tube, a water inlet of the light-heat tube is provided with a first valve, and a water outlet of the light-heat tube is provided with a second valve; the water storage assembly is connected to the light-heat assembly through a water conveying pipeline; the circulating assembly is arranged in the greenhouse and is connected to the water storage assembly; and the control assembly is electrically connected with the first valve and the second valve. By arranging the light-heat assembly, the sunlight can be converted into heat, and hot water can be continuously provided for the water storage assembly to meet the heating demand of the circulating assembly on the greenhouse, so that the electric energy required for heating is saved, and the production cost is reduced. Meanwhile, by arranging the electrically connected control assembly and valve group, automatic water inlet and outlet control of the light-heat assembly is realized, the labor cost of hot water supply control is reduced, and the production efficiency is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings incorporated herein and forming a part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application.

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, those skilled in the art can obtain other drawings according to these drawings without any creative effort.

[0021] Figure 1 A schematic diagram of the overall top view structure of the greenhouse heat preservation device is shown.

[0022] Figure 2 A schematic diagram of the light-heat component top view structure of the greenhouse heat preservation device is shown.

[0023] Figure 3 A schematic diagram of the light-heat component side view structure of the greenhouse heat preservation device is shown.

[0024] Figure 4 A schematic diagram of the overall side view structure of the greenhouse heat preservation device is shown.

[0025] Among them, the above-mentioned drawings include the following reference signs:

[0026] 1, light-heat component; 11, light-heat pipe; 12, first valve; 13, second valve; 14, first temperature sensor; 15, liquid level sensor; 16, light collecting plate; 17, mounting rack; 171, high support seat; 172, low support seat; 173, mounting rod; 18, first water pump; 2, water storage component; 3, circulation component; 31, circulation pipeline; 32, second water pump; 4, control component. DETAILED DESCRIPTION

[0027] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0029] For purposes of the description hereinafter, the terms "upper", "lower", "right", "left", "rear", "front", "vertical" and "horizontal" as can be perceived from the figures are used for convenience only to describe the exemplary embodiments of the present application. It is being emphasized that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if a device described herein relative to the other device or structure is turned over, then a relative term such as "frontwardly" or "downwardly" can be used to describe the newly presented views or orientations of such device or structure. Other examples of spatially relative terms include "upwardly", "downwardly", "forwardly", "rearwardly", "vertical", "horizontal", and so on. It is being understood that the terms "upwardly" and "downwardly" are used in their normal sense to indicate the orientation of the device as it is being used or operated in its normal use or operation. It is also being understood that the terms "upwardly" and "downwardly" can include the relative terms "upwardly" and "downwardly" respectively, in addition to the absolute terms "up" and "down". The device can also be oriented 90 degrees or in other orientations, and the spatially relative terms used herein should be construed in like fashion.

[0030] It is to be noted that the terms used in the present specification and claims are merely used to describe specific embodiments and are not intended to limit exemplary embodiments according to the present application. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0031] It is to be noted that the terms "first", "second", and so on as used in the present specification and claims are used to distinguish similar objects and are not necessarily used to describe a specific sequential or chronological order. It is to be understood that the terms so used in the description are interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of accomplishing the same objectives stated in the claims regardless of the specific order used. Furthermore, the terms "comprise", "comprising", "include", "including", and their conjugates, as used herein, are intended to be open-ended and do not exclude additional elements or steps. It is to be understood that the terms "comprise", "comprising", "include", "including", and their conjugates, as used herein, are intended to be open-ended and do not exclude additional elements or steps.

[0032] Figures 1 to 4 An embodiment of the greenhouse heat preservation device of the present application is schematically shown.

[0033] As Figures 1 to 4As shown, the application discloses a greenhouse heat preservation device, which comprises a light-heat component 1, the light-heat component 1 comprises a hollow light-heat pipe 11, a first valve 12 is arranged at the water inlet of the light-heat pipe 11, and a second valve 13 is arranged at the water outlet of the light-heat pipe 11. A water storage component 2 is connected to the light-heat component 1 through a water conveying pipeline. A circulating component 3 is arranged in the greenhouse and is connected to the water storage component 2. A control component 4 is electrically connected to the first valve 12 and the second valve 13.

[0034] Through the above structural design, the light-heat component 1 is arranged, the sunlight can be converted into heat, and hot water is continuously provided for the water storage component 2, so that the heating demand of the circulating component 3 for the greenhouse can be met, the electric energy required for heating is saved, and the production cost is reduced. Meanwhile, the control component 4 and the valve group are electrically connected, the automatic water inlet and outlet control of the light-heat component 1 is realized, the labor cost of hot water supply control is reduced, and the production efficiency is further improved.

[0035] In some embodiments of the application, as shown in Figure 2 A first temperature sensor 14 and a liquid level sensor 15 are arranged on the light-heat component 1, and the first temperature sensor 14 and the liquid level sensor 15 are electrically connected to the control component 4, so as to monitor the water temperature and the liquid level in the light-heat component 1.

[0036] In some embodiments of the application, as shown in Figure 2 The light-heat component 1 further comprises a first water pump 18, the first water pump 18 is arranged at the water inlet side of the light-heat pipe 11, and the first water pump 18 is also electrically connected to the control component 4 and is used for pumping water for the light-heat component 1. In the embodiment of the application, one independent first water pump 18 is arranged for each light-heat component 1. Since the first water pump 18 only pumps water for the light-heat pipe 11 with small capacity, a small water pump can be selected, and the cost is low. The arrangement of one independent first water pump 18 for each light-heat component 1 can not cause too much burden on the cost of the device, and on the other hand, each light-heat component 1 can be controlled independently, so as to avoid water flow interference and temperature imbalance.

[0037] In some embodiments of the application, as shown in Figure 2 and Figure 3 The light-heat component 1 further comprises a light condensing plate 16, the light condensing plate 16 is installed below the light-heat pipe 11, and the light condensing axis of the light condensing plate 16 passes through the light-heat pipe 11, so that more reflected light is provided for the light-heat pipe 11, the light-heat conversion efficiency of the light-heat pipe 11 is improved, and the heat production and heat preservation effect of the greenhouse heat preservation device of the embodiment of the application is improved.

[0038] Referring to Figures 1 to 4In the embodiment of the application, a liquid level sensor 15 is installed near the high end (i.e. the water inlet end) of the first valve 12 to monitor the water level in the heat pipe 11. A first temperature sensor 14 is installed near the low end (i.e. the water outlet end) of the second valve 13 to monitor the water temperature in the heat pipe 11. Finally, a controllable small water pump, i.e. the first water pump 18, is connected upstream of the first valve 12 and connected to the water source. During the operation of the entire device, after the heat pipe 11 is filled with water at room temperature, the control component 4 controls the first valve 12 and the second valve 13 to be closed. Under the sunlight and the light collecting effect of the light collecting plate 16, the water in the heat pipe 11 begins to heat up rapidly, and at this time the first temperature sensor 14 begins to collect water temperature data. The control component 4 compares the collected water temperature data with the set limit temperature, and when the water temperature reaches the set limit temperature, the second valve 13 is opened under the control of the control component 4, so that the hot water flows out into the water storage component 2 for distribution. The opening of the second valve 13 is set according to the capacity of the heat pipe 11 and the water discharge per second, and the second valve 13 is closed after the water discharge is completed. After the second valve 13 is closed (or delayed for a period of time), the first valve 12 is opened, and the first water pump 18 is started to add water under the control of the control component 4. The water level in the heat pipe 11 is measured by the liquid level sensor 15, and when the water level reaches the preset value, the control component 4 closes the second water pump 32, thereby automatically realizing the control cycle of water adding and water discharging. This process does not require manual intervention, saving the cost of manual labor in winter.

[0039] In some embodiments of the application, as shown in Figure 3 The heat pipe 11 and the light collecting plate 16 are obliquely installed on the mounting rack 17. The mounting rack 17 is obliquely arranged so that the light collecting plate 16 and the heat pipe 11 form an angle with the ground, thereby receiving sunlight at a better angle and improving the heat efficiency. Meanwhile, the angle of the mounting rack 17 is adjustable, which can adjust the angle of the light collecting plate 16 and the heat pipe 11 according to the seasons, so as to adapt to the change of the solar altitude angle in different seasons and maintain a high heat efficiency.

[0040] In some embodiments of the application, as shown in Figure 3 The mounting rack 17 includes a high support seat 171, a low support seat 172 and a mounting rod 173. The mounting rod 173 is obliquely arranged between the high support seat 171 and the low support seat 172, and the heat pipe 11 and the light collecting plate 16 are jointly installed on the mounting rod 173 to form a required angle with the ground. The high support seat 171 is a liftable structure, and the angle adjustment of the heat pipe 11 and the light collecting plate 16 can be realized by lifting the high support seat 171.

[0041] In some embodiments of the present application, the mounting rod 173 is rotatably connected with the high support base 171 and the low support base 172, so that the orientation of the heat pipe 11 and the light collecting plate 16 can be aligned with the sun at any time, ensuring that the solar light can be efficiently received at any time of the day. On this basis, the light and heat assembly 1 further comprises a driving motor, the output end of the driving motor is connected with the mounting rod 173, and the driving motor is electrically connected with the control assembly 4. The control assembly 4 can be preset with a suitable driving time table according to the approximate time of sunrise and sunset, so as to start the driving motor according to the driving time table to ensure that the heat pipe 11 and the light collecting plate 16 can rotate following the sun angle. In the embodiment of the present application, the high support base 171 and the low support base 172 are both provided with through holes and are configured with bearings and other structures to rotatably fix the mounting rod 173, so as to realize the light-following rotation of the heat pipe 11 and the light collecting plate 16. The driving motor and the mounting rod 173 are drivingly connected through a gear and a speed reducer, so that the mounting rod 173 is driven by the driving motor to rotate slowly for angle adjustment. Since the rotation is very small, the power consumption required by the present application is very low, and the cost is significantly saved compared with the existing electric heating working medium scheme.

[0042] In some embodiments of the present application, as shown in Figure 1 , the light and heat assembly 1 is provided with a plurality of light and heat assemblies 1, and the plurality of light and heat assemblies 1 are connected in parallel to the water storage assembly 2, so as to meet the water demand of the water storage assembly 2 and provide sufficient hot water supply for the heat preservation of the greenhouse.

[0043] In some embodiments of the present application, as shown in Figure 1 and Figure 4 , the circulating assembly 3 comprises a circulating pipeline 31 and a second water pump 32. The circulating pipeline 31 passes through the greenhouse, and both ends thereof are communicated to the water storage assembly 2, so as to make the heated working medium (i.e. water) flow through the greenhouse to heat and preserve the greenhouse. The second water pump 32 is arranged on the circulating pipeline 31 and is electrically connected with the control assembly 4, and the hot water is pumped into the greenhouse as needed. The control assembly 4 is electrically connected with the second water pump 32, and the hot water flow of the circulating assembly 3 can be determined according to the actual situation such as the weather temperature, so as to keep the temperature in the greenhouse controllable. It can be understood that a temperature sensor is also arranged in the greenhouse and is directly electrically connected to the control assembly 4, so that the control assembly 4 can control the second water pump 32 according to the temperature in the greenhouse. In the embodiments of the present application, as shown in Figure 1 and Figure 4 , the circulating pipeline 31 is attached to the inner side of the film of the greenhouse to heat the greenhouse. In some other embodiments of the present application, the circulating pipeline 31 can also be laid on the ground or buried underground, and the specific form is determined according to the space in the greenhouse and the planted crops.

[0044] In some embodiments of the present application, considering the existence of rain, snow, cloudy day and other weather, the greenhouse heat preservation device further comprises an electric heating assembly. The electric heating assembly is arranged at the water storage assembly 2 and is electrically connected with the control assembly 4. The electric heating assembly is in a closed state on sunny days and does not need to be turned on, so as to save electric energy. When the weather is bad or at night without solar energy, in order to ensure the safety of crops, a second temperature sensor is arranged at the water storage assembly 2, and the second temperature sensor is electrically connected with the control assembly 4. When the control assembly 4 detects that the water temperature in the water storage assembly 2 is too low, the electric heating assembly is started to heat the working medium water, so as to ensure that there is enough hot water for the heat preservation control of the greenhouse.

[0045] In summary, the greenhouse heat preservation device of the embodiments of the present application comprises a light and heat assembly, a water storage assembly, a circulating assembly and a control assembly. The light and heat assembly comprises a hollow light and heat pipe, the water inlet of the light and heat pipe is provided with a first valve, and the water outlet of the light and heat pipe is provided with a second valve. The water storage assembly is connected with the light and heat assembly through a water conveying pipeline. The circulating assembly is arranged in the greenhouse and is connected with the water storage assembly. The control assembly is electrically connected with the first valve and the second valve. By arranging the light and heat assembly, the present application can convert solar light into heat, and continuously provide hot water for the water storage assembly to meet the heating demand of the circulating assembly for the greenhouse, thereby saving the electric energy required for heating and reducing the production cost. At the same time, by arranging the electrically connected control assembly and valve group, the present application realizes the automatic water inlet and outlet control of the light and heat assembly, reduces the labor cost of hot water supply control, and is conducive to further improving the production efficiency.

[0046] The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A heat retaining device for a greenhouse, characterized in that, The application relates to a greenhouse heat preservation device. The greenhouse heat preservation device comprises the following components: a light-heat component (1) comprising a hollow light-heat pipe (11), wherein a water inlet of the light-heat pipe (11) is provided with a first valve (12), and a water outlet of the light-heat pipe (11) is provided with a second valve (13); a water storage component (2) connected to the light-heat component (1) through a water conveying pipeline; a circulation component (3) arranged in the greenhouse and connected to the water storage component (2); 2. The greenhouse heat retention device of claim 1, wherein, a control component (4) electrically connected to the first valve (12) and the second valve (13).

3. The greenhouse heat retention device of claim 1, wherein, The light-heat component (1) is provided with a first temperature sensor (14) and a liquid level sensor (15), and the first temperature sensor (14) and the liquid level sensor (15) are electrically connected to the control component (4).

4. The greenhouse heat retention device of claim 3, wherein, The light-heat component (1) further comprises a light collecting plate (16) installed below the light-heat pipe (11), and a light collecting axis of the light collecting plate (16) passes through the light-heat pipe (11).

5. The greenhouse heat retention device of claim 4, wherein, The light-heat component (1) further comprises an installation rack (17) arranged in an inclined manner, and an inclination angle of the installation rack (17) is adjustable; the light-heat pipe (11) and the light collecting plate (16) are installed on the installation rack (17) in an inclined manner.

6. The greenhouse heat retention device of claim 5, wherein, The installation rack (17) comprises a high support base (171), a low support base (172) and an installation rod (173); the installation rod (173) is arranged between the high support base (171) and the low support base (172) in an inclined manner; the high support base (171) is a liftable structure; the light-heat pipe (11) and the light collecting plate (16) are jointly installed on the installation rod (173).

7. The greenhouse heat retention device of claim 1, wherein, The installation rod (173) is rotationally connected to the high support base (171) and the low support base (172); the light-heat component (1) further comprises a driving motor, an output end of the driving motor is connected to the installation rod (173), and the driving motor is electrically connected to the control component (4).

8. The greenhouse heat retention device of claim 1, wherein, A plurality of the light-heat components (1) are connected in parallel to the water storage component (2).

9. The greenhouse heat retention device of claim 1, wherein, The light-heat component (1) further comprises a first water pump (18) arranged on one side of the water inlet of the light-heat pipe (11), and the first water pump (18) is electrically connected to the control component (4).

10. The greenhouse heat retention device of claim 1, wherein, The circulation component (3) comprises a circulation pipeline (31) and a second water pump (32); the circulation pipeline (31) passes through the greenhouse, and both ends of the circulation pipeline (31) are connected to the water storage component (2); the second water pump (32) is arranged on the circulation pipeline (31) and is electrically connected to the control component (4). The greenhouse heat preservation device further comprises an electric heating component arranged at the water storage component (2) and electrically connected to the control component (4); the water storage component (2) is provided with a second temperature sensor electrically connected to the control component (4).

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