A ventilation circulation device for greenhouse

Abstract

The utility model relates to the technical field of greenhouses, and provides a ventilation circulation device for greenhouses, including: a heating and ventilation component, a cooling and ventilation component, a cold air diaphragm, a temperature sensor, a top air pipe, a bottom air pipe and a greenhouse, the heating and ventilation component and the cooling and ventilation component are arranged on the outside of the greenhouse, the top air pipe is arranged at the top of the greenhouse, the bottom air pipe is arranged at the bottom of the greenhouse, the output end of the heating and ventilation component is connected to one end of the bottom air pipe, the output end of the cooling and ventilation component is connected to one end of the top air pipe, the cold air diaphragm is arranged on the lower side of the top air pipe, and the temperature sensor is arranged in the planting area of ​​the greenhouse. The utility model can heat the gas inhaled from the outside when the external ambient temperature is low, thereby preventing the temperature and dryness and humidity on the surface of the fruit from changing drastically, and avoiding the "dry edge" of the crop leaves and the "chapped skin" of the fruit.

Description

Technical Field

[0001] The utility model relates to the technical field of greenhouses, in particular to ventilation and circulation equipment used in greenhouses. Background Art

[0002] A greenhouse refers to a facility that is light-transmitting, heat-insulating (or heating) and used to cultivate plants. It can provide a greenhouse growth period and increase yields in seasons that are not suitable for plant growth. It is mostly used for the cultivation or seedling raising of warmth-loving vegetables, flowers, trees and other plants in low temperature seasons.

[0003] As disclosed in application number: CN202122726156.6, a greenhouse ventilation circulation device includes a greenhouse; an air inlet duct fixedly connected to the outside of the greenhouse; a blower fixedly connected to the air inlet duct; an air outlet duct fixedly connected to the blower, and an end thereof away from the blower is connected to the greenhouse; a bottom plate fixedly connected to the inner end of the greenhouse, which is connected to the air inlet duct; a ventilation pipe fixedly connected to the bottom plate; and a ventilation fan fixedly connected to a side of the greenhouse away from the air inlet duct.

[0004] However, in actual use, when the outside temperature is low, the temperature of the outside gas inhaled by the blower is low, which will cause drastic changes in the temperature and dryness and humidity on the surface of the fruit for a long time, resulting in "dry edges" of the crop leaves and "chapped skin" of the fruit. Utility Model Content

[0005] In order to solve the problem that when the outside temperature is low, the temperature of the outside gas sucked in by the blower is low during actual use, which will cause drastic changes in temperature and dryness and humidity on the surface of the fruit for a long time, resulting in "dry edges" of crop leaves and "chapped skin" of fruits, the utility model provides a ventilation circulation device for greenhouses to solve this problem.

[0006] In order to achieve the above object, the utility model provides the following technical solutions:

[0007] A ventilation circulation device for a greenhouse, comprising: a heating and ventilation component, a cooling and ventilation component, a cold air diaphragm, a temperature sensor, a top air duct, a bottom air duct and a greenhouse, wherein the heating and ventilation component and the cooling and ventilation component are arranged on the outside of the greenhouse, the top air duct is arranged at the top of the greenhouse, the bottom air duct is arranged at the bottom of the greenhouse, the output end of the heating and ventilation component is connected to one end of the bottom air duct, the output end of the cooling and ventilation component is connected to one end of the top air duct, the cold air diaphragm is arranged on the lower side of the top air duct, and the temperature sensor is arranged in the planting area of ​​the greenhouse.

[0008] Preferably, the heating and ventilation assembly comprises: a first fan, a heating device and a heating pipe, the output end of the first fan is connected to one end of the bottom air pipe through the heating pipe, and the heating device is arranged on the heating pipe.

[0009] Preferably, the refrigeration and ventilation assembly includes: a second fan, a refrigeration device and a refrigeration pipeline, the second fan is connected to the top air pipe through the refrigeration pipeline, and the refrigeration device is arranged on the refrigeration pipeline.

[0010] Preferably, the cold air diaphragm comprises: a mounting bar and a diaphragm body, the mounting bars are arranged on both sides of the diaphragm body, the diaphragm body is fixedly connected to the greenhouse via the mounting bars, and air holes are evenly arranged on the diaphragm body.

[0011] Preferably, the air holes are staggered with the air outlet holes of the top air pipe.

[0012] Preferably, the bottom air pipe comprises: a bottom pipe body, a bottom branch pipe, a supporting diagonal rod and an air blocking plate. The bottom branch pipes are provided in multiple groups, and the multiple groups of bottom branch pipes are evenly arrayed on the bottom pipe body. The air blocking plate is arranged above the bottom branch pipe, and the air blocking plate is connected to the bottom branch pipe through the supporting diagonal rod.

[0013] The advantages of the utility model are as follows: the utility model can heat the air inhaled from the outside when the outside environment temperature is low by arranging a heating and ventilation component, thereby preventing drastic changes in temperature and humidity on the surface of the fruit; when the outside temperature is high, the temperature of the air inhaled from the outside can be effectively reduced by using a refrigeration and ventilation component, thereby providing a good growth environment for crops; the influence of a sudden drop in temperature on crops can be avoided by arranging a cold air diaphragm; and the even distribution of hot air and cold air can be ensured by arranging top and bottom air ducts, thereby avoiding waste of energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a structural axial view of the cold air diaphragm of the utility model;

[0017] Figure 3 It is a structural axial view of the bottom air pipe of the utility model.

[0018] Description of reference numerals:

[0019] 1. Heating and ventilation components; 2. Refrigeration and ventilation components; 3. Cold air diaphragm; 4. Temperature sensor; 5. Top air duct; 6. Bottom air duct; 7. Greenhouse; 11. First fan; 12. Heating device; 13. Heating pipe; 21. Second fan; 22. Refrigeration device; 23. Refrigeration pipe; 31. Mounting strip; 32. Diaphragm body; 61. Bottom pipe body; 62. Bottom branch pipe; 63. Support diagonal rod; 64. Air blocking plate. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0021] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0023] Embodiment 1, combined with Figure 1 To explain:

[0024] A ventilation circulation device for a greenhouse, comprising: a heating and ventilation component 1, a cooling and ventilation component 2, a cold air diaphragm 3, a temperature sensor 4, a top air pipe 5, a bottom air pipe 6 and a greenhouse 7, wherein the heating and ventilation component 1 and the cooling and ventilation component 2 are arranged on the outside of the greenhouse 7, the top air pipe 5 is arranged on the top of the greenhouse 7, the bottom air pipe 6 is arranged on the bottom of the greenhouse 7, the output end of the heating and ventilation component 1 is connected to one end of the bottom air pipe 6, the output end of the cooling and ventilation component 2 is connected to one end of the top air pipe 5, the cold air diaphragm 3 is arranged on the lower side of the top air pipe 5, and the temperature sensor 4 is arranged in the planting area of ​​the greenhouse 7.

[0025] By setting up the heating and ventilation component 1, the air inhaled from the outside can be heated when the external ambient temperature is low, thereby preventing the temperature and humidity on the surface of the fruit from changing drastically. When the external temperature is high, the temperature of the air inhaled from the outside can be effectively reduced by using the refrigeration and ventilation component 2, thereby providing a good growth environment for crops. By setting up the cold air diaphragm 3, the impact of a sudden drop in temperature on crops can be avoided. By setting up the top air pipe 5 and the bottom air pipe 6, the hot air and cold air can be evenly distributed to avoid wasting energy.

[0026] The heating and ventilation assembly 1 includes: a first fan 11 , a heating device 12 and a heating pipe 13 . The output end of the first fan 11 is connected to one end of the bottom air pipe 6 through the heating pipe 13 , and the heating device 12 is arranged on the heating pipe 13 .

[0027] The first fan 11 model is DH-100 greenhouse exhaust fan, and the heating device 12 model is SR-GD.

[0028] The refrigeration and ventilation assembly 2 includes: a second fan 21 , a refrigeration device 22 and a refrigeration pipeline 23 . The second fan 21 is connected to the top air pipe 5 through the refrigeration pipeline 23 , and the refrigeration device 22 is arranged on the refrigeration pipeline 23 .

[0029] The second fan 21 model uses the DH-100 greenhouse exhaust fan, and the refrigeration device 22 uses a cold air fan.

[0030] Embodiment 2, based on embodiment 1, combined with Figure 2 To explain:

[0031] The cold air diaphragm 3 includes: a mounting bar 31 and a diaphragm body 32. The mounting bar 31 is arranged on both sides of the diaphragm body 32. The diaphragm body 32 is fixedly connected to the greenhouse 7 through the mounting bar 31. Air holes are evenly arranged on the diaphragm body 32. The mounting bar 31 and the diaphragm body 32 are connected by screws, and the mounting bar 31 and the greenhouse are connected by screws.

[0032] The air holes are staggered with the air outlet holes of the top air pipe 5. Such arrangement can delay the time for cold air to reach the crops, make the cold air distribution more uniform, and reduce the impact on the crops.

[0033] Embodiment 3, based on embodiment 2, combined with Figure 3 To explain:

[0034] The bottom air pipe 6 comprises: a bottom pipe body 61, a bottom branch pipe 62, a supporting inclined rod 63 and an air blocking plate 64. The bottom branch pipe 62 is provided with multiple groups, and the multiple groups of bottom branch pipes 62 are evenly arrayed on the bottom pipe body 61. The air blocking plate 64 is arranged above the bottom branch pipe 62, and the air blocking plate 64 is connected to the bottom branch pipe 62 through the supporting inclined rod 63. The supporting inclined rod 63 is respectively welded to the bottom branch pipe 62 and the air blocking plate 64, and the bottom branch pipe 62 is welded to the bottom pipe body 61.

[0035] With such arrangement, the air blocking plate 64 is used to disperse the gas emitted from the bottom branch pipe 62 to prevent excessive airflow from affecting the growth of crops.

[0036] Working principle of the utility model: when the utility model is in use, when ventilation is needed, if the outside temperature is low, the first fan 11 is made to inhale air from the outside, the heating device 12 is started to heat the inhaled gas, and then it is transported into the greenhouse, the second fan 21 is made to inhale air from the greenhouse, and the refrigeration device 22 does not work, thereby forming a ventilation circulation system; when the outside temperature is high, the second fan 21 is made to inhale air from the outside, the pneumatic refrigeration device 22 cools the inhaled gas, and then it is transported into the greenhouse, the first fan 11 is made to inhale air from the greenhouse, the heating device 12 does not work, thereby forming a ventilation circulation system; the utility model has a reasonable structure and is easy to use; it can heat the gas inhaled from the outside when the outside ambient temperature is low, thereby preventing the temperature and dryness and humidity on the surface of the fruit from changing drastically, and avoiding the "dry edges" of crop leaves and the "chapped skin" of fruits.

[0037] For those skilled in the art, the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any minor modifications, equivalent substitutions and improvements made to the above embodiments based on the technical essence of the present invention should be included in the protection scope of the technical solution of the present invention.

Claims

1. A ventilation circulation device for a greenhouse, characterized in that: include: A heating and ventilation component (1), a cooling and ventilation component (2), a cold air diaphragm (3), a temperature sensor (4), a top air pipe (5), a bottom air pipe (6) and a greenhouse (7), wherein the heating and ventilation component (1) and the cooling and ventilation component (2) are arranged outside the greenhouse (7), the top air pipe (5) is arranged at the top of the greenhouse (7), the bottom air pipe (6) is arranged at the bottom of the greenhouse (7), the output end of the heating and ventilation component (1) is connected to one end of the bottom air pipe (6), the output end of the cooling and ventilation component (2) is connected to one end of the top air pipe (5), the cold air diaphragm (3) is arranged on the lower side of the top air pipe (5), and the temperature sensor (4) is arranged in the planting area of ​​the greenhouse (7).

2. A ventilation circulation device for a greenhouse according to claim 1, characterized in that: The heating and ventilation assembly (1) comprises: a first fan (11), a heating device (12) and a heating pipe (13); the output end of the first fan (11) is connected to one end of the bottom air pipe (6) via the heating pipe (13); and the heating device (12) is arranged on the heating pipe (13).

3. A ventilation circulation device for a greenhouse according to claim 1, characterized in that: The refrigeration and ventilation assembly (2) comprises: a second fan (21), a refrigeration device (22) and a refrigeration pipeline (23); the second fan (21) is connected to the top air pipe (5) via the refrigeration pipeline (23); and the refrigeration device (22) is arranged on the refrigeration pipeline (23).

4. A ventilation circulation device for a greenhouse according to claim 1, characterized in that: The cold air diaphragm (3) comprises: a mounting strip (31) and a diaphragm body (32); the mounting strip (31) is arranged on both sides of the diaphragm body (32); the diaphragm body (32) is fixedly connected to the greenhouse (7) via the mounting strip (31); and air holes are evenly arranged on the diaphragm body (32).

5. A ventilation and circulation device for a greenhouse according to claim 4, characterized in that: The air holes are staggered with the air outlet holes of the top air pipe (5).

6. A ventilation and circulation device for a greenhouse according to claim 1, characterized in that: The bottom air pipe (6) comprises: a bottom pipe body (61), a bottom branch pipe (62), a supporting inclined rod (63) and an air blocking plate (64); the bottom branch pipe (62) is provided with a plurality of groups, the plurality of groups of bottom branch pipes (62) are evenly arranged in an array on the bottom pipe body (61); the air blocking plate (64) is arranged above the bottom branch pipe (62); and the air blocking plate (64) is connected to the bottom branch pipe (62) via the supporting inclined rod (63).

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