JP2007295874A - Ventilation system for greenhouse - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ventilation system for a greenhouse solving the following problem: a conventional ventilation system for a greenhouse provided with ventilation fans and/or introduction fans at both surfaces of the system orthogonal to a longitudinal direction lays only a scheme for air flow in the greenhouse because of its structure with no net and therefore is hardly adequate to prevent invasion of harmful insects or animals which crawl on the ground or fly in the sky while introduction of outer air and discharge of inner air based on the introduction of the outer air are intended so as to maintain the environment in the greenhouse. <P>SOLUTION: The ventilation system for a greenhouse is structured as follows: setting up a net in a longitudinal direction of the greenhouse in a stretched fashion; and installing a ventilation fan and/or an introduction fan in a transverse direction, wherein the introduction fan introduces outer air and the ventilation fan almost simultaneously performs discharge the air, the introduced outer air is sent multidirectionally via a circulation fan during the process of air discharge and also the outer air is uniformly introduced in the greenhouse so as to homogenize the temperature in the house and maintain growth environment suitable for plants. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a ventilation system for a house (a house such as a vinyl house or a glass house) in which fruit vegetables, root vegetables, and other vegetables are cultivated.

  The ventilation system (ventilation system in the house) that introduces (inhales) the outside air into the house and exhausts the inside air (room air) out of the house (ventilation system in the house) avoids high-temperature obstacles in the house and also prevents carbon assimilation. Conditions such as promotion and prevention of disease outbreak and spread are considered to be the minimum necessary for growth.

  By ensuring such conditions, for example, healthy growth, expansion of harvesting and / or improvement of quality, and crops desired by each person can be efficiently and easily cultivated. Therefore, it is extremely effective for people engaged in agriculture (referred to as farm workers) or general consumers.

  In view of the above, an efficient and effective configuration is desired for the ventilation system in this type of house. Therefore, various studies on this and various literature on this are also found. Hereinafter, documents related to these are listed as prior art.

  [1] First, a ventilation fan and / or a fan is installed on the wall surface in the longitudinal direction of the house, and the technology related to the ventilation system for introducing outside air and exhausting the inside air in this longitudinal direction is basically one side of the short side. Adopting the basic structure of introducing outside air from one side (excluding the other side) and exhausting it from the other side (considering the other side) (referred to as “paired wall ventilation”) It is intended to avoid high-temperature injury, prevent oxygen deficiency, prevent disease outbreaks, and spread (set it as a plant growth environment).

  Reference (1) relating to this is “Method for adjusting room temperature of agricultural building” disclosed in Japanese Patent Application Laid-Open No. 60-14504. This invention is a pair of wall ventilation, and a spraying device is provided on the entire ceiling to adjust the room temperature. Intended for illustration. The document (2) is a “plant growth environment control method” disclosed in Japanese Patent Laid-Open No. 5-184245, and the present invention has the same configuration and characteristics as the above-mentioned document (1). Further, the document (3) is a “house ventilation system” disclosed in Japanese Patent Laid-Open No. 10-150860, and this invention is a pair of wall ventilation, in which a duct mounted on one fan is configured to expand and contract. Intended to eliminate harmful effects caused by water droplets. Further, the document (4) is “Dry noodle drying method and facility thereof” disclosed in Japanese Patent Application Laid-Open No. 2002-34435, and this invention is a pair of wall ventilation, which hangs the dried noodle material from air in a substantially horizontal direction. It is characterized by drying through a stream.

  [2] Next, by adopting a configuration in which a plurality of circulation fans are arranged in a row on the ceiling surface in the longitudinal direction of the house and / or in the air in the room, and indoor air is guided in the longitudinal direction, the house is ventilated, It is intended to ensure the plant growth environment.

  Reference (5) relating to this is a “circulator for a greenhouse” disclosed in Japanese Utility Model Laid-Open No. 60-136657, in which the circulation fan is suspended and arranged from the ceiling surface of the house. It is intended to make uniform. Reference (6) is an “in-house air circulation system” disclosed in Japanese Patent Laid-Open No. 2000-232826, and the present invention has the same configuration and characteristics as the above-mentioned reference (5).

  [3] Recently, insect-proof houses have also been adopted. Ventilation of the house in this house and securing of the plant growth environment are considered as important conditions. Therefore, there is a literature relating to a plant cultivation house (facility) and a plant cultivation method that are suitable for plants and that prevent this pest invasion.

  Reference (7) relating to this is “Plant cultivation facility and plant cultivation method” of Japanese Patent Application Laid-Open No. 2004-8049, in which a net is stretched on one side of the facility and air blowing means (a plurality of fans) are provided on the other side. Intended to generate airflow along the rows of cultivated plants.

JP-A-60-145041 JP 5-184245 JP-A-10-150860 JP 2002-34435 A Shokai 60-136657 JP 2000-232826 JP 2004-8049 A

  Documents (1) to (4) are paired wall ventilation, and are intended to maintain the environment of the house by introducing outside air and exhausting inside air. However, these documents (1) to (4) remain in a configuration that ensures the flow of air in the house, and are intended to prevent infestation (insect or animal protection) of pests and pests that fly or fly on the ground. Is not enough. In addition, insects or beasts can be achieved with the configuration in which the net (1) to (4) are used and the net is simply stretched, but on the other hand, it is difficult to ensure the plant growth environment.

  References (5) and (6) are intended to maintain the environment of the house by circulating the air in the house, introducing outside air if necessary, and exhausting the inside air based on this. However, these devices and inventions are only for securing the air flow in the house (utilization of a circulation fan), and are not sufficient for preventing the invasion of pests and pests that fly or fly on the ground. Further, in the configuration in which the net (6) is used and the net is simply stretched, insect protection or animal protection can be achieved, but on the other hand, it is difficult to secure the growth environment of the plant.

  Further, although reference (7) can prevent the invasion of flying pests and pests by attaching a net to the house, it is difficult to secure the air flow in the house. In addition, it is considered that air in the house, in particular, air flow on the longitudinal side surface in the longitudinal direction and / or introduction of outside air from the longitudinal side surface is not sufficient, and there is a problem in maintaining the environment of the house.

  In the invention of claim 1, a net (insect repellent net) is stretched in the house to prevent intrusion of pests and / or pests that fly and / or fly, and the air in the house is positively and in a set direction. It is intended to maintain the environment of the house by securing the flow and introducing air flow and / or outside air from the longitudinal side surface in the longitudinal direction in the house.

  In the invention of claim 1, a ventilation fan and / or an introduction fan are respectively provided on both short sides of the house in the short direction, and an air flow is generated in the longitudinal direction in the house, and the air flow is attracted to the air flow. Since the outside air can be introduced from the nets on both longitudinal sides, for example, [b] First, eliminate the rise in the temperature in the house, [b] Next, in a time zone that is safe in terms of thermal environment as in the past After a certain sunrise, it is possible to work day and night without being limited to several hours before sunset, to achieve efficient farming work, [c] and to be able to help improve the working thermal environment, [d] Forced It is intended to achieve convection heat transfer and achieve the effects [a] to [c] described above.

  Further, according to the first aspect of the present invention, the outside air introduced into the house is circulated in multiple directions through a circulation fan installed in the house, and the outside air is introduced almost uniformly into the house. For example, [e] In conventional cases that are problematic, that is, farm work in facility cultivation, the work intensity is extremely light work with an RMR (energy metabolism rate) of 1-2. Work is central. However, in a house covered with an insect repellent net in the high temperature period, WBGT (wet bulb black bulb temperature) rises rapidly from the operator's chest to the vicinity of the face as the solar radiation increases. Although it was higher than the uncoated house, there was a problem in the thermal environment of the house, but this is intended to solve this problem at once.

Claim 1 is a house ventilation system in which nets are stretched on both long side surfaces in the longitudinal direction of the house, and ventilation fans and / or introduction fans are provided on both short side surfaces in the short direction,
Introducing outside air into the house through the introduction fan, exhausting the inside air of the house through the ventilation fan substantially simultaneously,
In this execution process, outside air is introduced almost uniformly into the house,
In this execution process, the introduced outside air is blown in multiple directions in the house through a circulation fan installed in the house.
This house ventilation system is configured to maintain an optimal growth environment for the plants in the house while at least homogenizing the temperature in the house.

  The invention of claim 2 ensures positive and set flow of the air in the house, and introduces air flow and / or outside air from the longitudinal side surface in the longitudinal direction in the house. It is intended to maintain the environment of the house.

Claim 2 is a house ventilation system provided with a ventilation fan and / or an introduction fan on both short sides of the house in the short direction,
Introducing outside air into the house through the introduction fan, exhausting the inside air of the house through the ventilation fan substantially simultaneously,
In this execution process, outside air is introduced almost uniformly into the house,
In this execution process, the introduced outside air is blown in multiple directions in the house through a circulation fan installed in the house.
The house ventilation system is configured to maintain an optimum growth environment for the plants in the house while at least homogenizing the temperature in the house.

  The invention of claim 3 achieves the object of claim 1 or claim 2 and provides a structure provided with a circulation fan on the optimal ceiling surface and space of the house in order to reliably achieve this object. I intend to.

  Claim 3 is the ventilation system of the house according to claim 1 or 2, wherein the circulation fan installed on the ceiling surface and the space part is adjustable in depression angle and / or swingable, and the outside air in the house is circulated. This is a house ventilation system that is capable of positively diffusing and / or blowing down, and that can enhance the airflow characteristics.

  The invention of claim 4 achieves the object of claim 1 or claim 2 and provides a structure provided with fine mist means on the optimal ceiling surface and space of the house in order to reliably achieve this object. Intended to be.

  According to a fourth aspect of the present invention, in the ventilation system of the house according to the first or second aspect, the fine fog means is installed on the ceiling surface and the space portion, and the fine fog is diffused on the airflow of the introduced outside air. It is a house ventilation system that enables fine fog cooling.

  The invention of claim 5 is intended to achieve the object of claim 1 or claim 2 and to provide an optimum longitudinal side net structure in order to reliably achieve this object.

  Claim 5 is a ventilation system for a house according to claim 1 or 2, wherein the nets on both longitudinal sides of the ventilation system are extended to the floor surface, and prevent the invasion of pests and pests on the ground. It is a ventilation system of the house that made it possible.

  The invention of claim 6 is intended to achieve the object of claim 1 or claim 2 and to provide an optimal longitudinal side net structure in order to reliably achieve this object.

  Claim 6 is the house ventilation system according to claim 1 or claim 2, wherein the nets on both longitudinal sides thereof are extended to the floor surface, such as aphids, whiteflies, etc. near the ground. This is a house ventilation system that can prevent the invasion of pests and pests.

The invention of claim 1 is a house ventilation system in which nets are stretched on both long side surfaces in the longitudinal direction of the house, and ventilation fans and / or introduction fans are provided on both short side surfaces in the short direction,
The outside air is introduced into the house through the introduction fan, the inside air of the house is exhausted through the ventilation fan substantially simultaneously,
In the execution process, outside air is introduced almost uniformly into the house,
Also, in the execution process, the introduced outside air is blown in multiple directions in the house through the circulation fan installed in the house,
This is a house ventilation system configured to maintain an optimum growth environment for plants in the house while at least homogenizing the temperature in the house.

  Therefore, claim 1 has the following characteristics.

  (1) is to install a net in the house to prevent the invasion of pests and / or beasts that fly and / or fly, and to ensure the positive and set flow of air in the house. The air flow on the longitudinal side surface in the longitudinal direction in the house and / or the introduction of outside air from the longitudinal side surface can be achieved, and the environment of the house can be maintained.

  (2) The ventilation fan and / or the introduction fan are respectively provided on both short sides of the house in the short direction, and an air flow is generated in the house in a substantially longitudinal direction, and the both long sides are attracted by this air flow. Since outside air can be introduced from the side net, for example, [b] First, the rise in the temperature in the house can be eliminated, [b] Next, after sunrise, which is a time zone that is safe in terms of thermal environment as in the past It is possible to work day and night without being limited to a few hours before sunset, to achieve efficient farming work, [c] and to help improve the working thermal environment, [d] to promote forced convection heat transfer The effects [A] to [C] described above can be achieved.

  (3) The outside air introduced into the house through the circulation fan installed in the house is blown in multiple directions, and the outside air is introduced almost uniformly into the house, so that at least the temperature in the house is homogenized. Therefore, for example, [e] In the case of conventional problems, that is, farm work in institutional cultivation, the work intensity is mainly from extremely light work to light work with RMR (energy metabolism rate) of 1-2. It is. However, in a house covered with an insect repellent net in the high temperature period, WBGT (wet bulb black bulb temperature) rises rapidly from the operator's chest to the vicinity of the face as the solar radiation increases. Although it was higher than the uncoated house, there was a problem in the thermal environment of the house, but this problem can be solved at once.

The invention of claim 2 is a house ventilation system in which a ventilation fan and / or an introduction fan are provided on both short sides of the house in the short direction,
The outside air is introduced into the house through the introduction fan, the inside air of the house is exhausted almost simultaneously through the ventilation fan,
In the execution process, outside air is introduced almost uniformly into the house,
Also, in the execution process, the introduced outside air is blown in multiple directions in the house through the circulation fan installed in the house,
A house ventilation system that is designed to maintain the optimal growth environment for the plants in the house while at least homogenizing the temperature in the house.

  Accordingly, the second aspect ensures positive and set flow of air in the house, and introduces air flow and / or introduction of outside air from the longitudinal side surface in the house. It is intended to maintain the environment of the house.

  According to a third aspect of the present invention, in the ventilation system for a house according to the first or second aspect, the circulation fan installed on the ceiling surface or the space portion is adjustable in depression angle and / or swingable to This is a house ventilation system that is capable of positively diffusing and / or blowing down, and that can enhance the airflow characteristics.

  Therefore, Claim 3 can achieve the object of Claim 1 or Claim 2, and can provide a structure having a circulation fan in the optimum ceiling surface and space of the house in order to reliably achieve this object. It has the characteristics of.

  According to a fourth aspect of the present invention, in the house ventilation system according to the first or second aspect, the fine mist means is installed on the ceiling surface or the space, and the fine mist is diffused by riding on the air flow of the introduced outside air. However, this is a house ventilation system that enables fine fog cooling.

  Therefore, claim 4 can achieve the object of claim 1 or claim 2 and can provide a structure provided with fine mist means on the optimal ceiling surface and space of the house in order to reliably achieve this object. Etc.

  The invention according to claim 5 is the house ventilation system according to claim 1 or claim 2, wherein the nets on both longitudinal sides are extended to the floor surface, and the intrusion of the pests and harmful animals that rub the ground. This is a house ventilation system that can be prevented.

  Therefore, claim 5 has the characteristics that the object of claim 1 or claim 2 can be achieved, and that an optimal longitudinal side surface net structure can be provided in order to reliably achieve this object.

  A sixth aspect of the present invention is the house ventilation system according to the first or second aspect, wherein the nets on both longitudinal sides thereof extend to the floor surface, and the aphids and whiteflies are approximately 1 m from the ground. It is a house ventilation system that can prevent the invasion of harmful insects and pests.

  Therefore, claim 6 has the characteristics that the object of claim 1 or claim 2 can be achieved, and that an optimal longitudinal side surface net structure can be provided in order to reliably achieve this object.

  An example of the present invention will be described.

  FIG. 1 is a perspective view of the whole house having a ventilation fan with a net and an introduction fan with a net, FIG. 2 is a schematic side view of FIG. 1, FIG. 3 is a top view of the whole house with a part of FIG. FIG. 5 is a perspective view of the entire house with a partial cutout showing another example of FIG. 1, and FIG. 6 is a schematic side view showing another example of FIG. 7 is a front view showing the entire circulation fan of FIG. 6, and FIG. 8 is a side view showing another example of the house without the net shown in FIG.

  In the figure, the nets 2 and 2 are respectively stretched on the long side surfaces 100 and 100 in the longitudinal direction 1a of the house 1, and the ventilation fan 4 with the net 20 and / or the net 20 are attached to both short side surfaces 101 and 101 in the short direction 1b. A separate introduction fan 5 is provided. In addition, 3 shows the entrance / exit of the house 1 in the figure. In addition, the ventilation fan 4 and / or the introduction fan 5 may be automatically controlled.

  In such a configuration, when outside air is introduced into the house 1 via the introduction fan 5, the air inside the house 1 is forcibly exhausted outside the house 1 via the ventilation fan 4 by the introduced outside air. Through this forced exhaust, a strip-shaped airflow A (straight airflow) is generated in the house 1 that is linear and considerably wide in the longitudinal direction 1a. Outside air is introduced through the nets 2, 2 provided on the longitudinal side surfaces 100, 100 so as to be attracted by the strip-shaped air stream A, and the arrow 1 in the direction of the arrow “I” is applied to the inner wall surface A 1 in the longitudinal direction 1 a of the house 1. A flow of the air flow B is generated, and a composite general air flow AB is generated in the entire house 1. The following characteristics can be considered for the generation of the general airflow AB.

[1] Maintaining the environment of House 1
[2] Conventionally, in the case of a problem, that is, farm work in facility cultivation, the work intensity is mainly from extremely light work to light work having an RMR (energy metabolism rate) of 1 to 2. However, in a house covered with an insect repellent net in the high temperature period, WBGT (wet bulb black bulb temperature) rises rapidly from the chest of the worker to the vicinity of the face as the solar radiation increases. Although it was higher than the uncoated house, there was a problem in the thermal environment of the house, but this problem can be solved at once,
[3] [b] Can be used to eliminate the rise in temperature in the house 1, [b] Not limited to just a few hours after sunrise, which is a time zone that is safer in terms of thermal environment as in the past. In addition, it is possible to work day and night, and can be used to achieve efficient farming work. [C] It can also be used to improve the working thermal environment. [D] Forced convection heat transfer can be achieved.
[4] By extending the net 2 to the floor surface of the house 1 or the vicinity of the foundation, it is possible to prevent invading pests and / or pests that fly. For example, it is possible to prevent intrusion into the house 1 from the longitudinal side surface 100 and / or the opening of the ventilation fan 4, such as aphids, whiteflies and thrips,
[5] Although the net 2 is a problem that lowers the air permeability of the house 1, the present invention relates to the outside air introduced from the nets 2, 2 provided on the longitudinal side surfaces 100, 100 of the house 1 and the straight line in the house 1. The general airflow AB by the airflow A in the form of, for example, has effects such as elimination of harmful effects caused by temperature rise in the high temperature period and prevention of crop dying and burning.

  As shown in the figure, by installing a plurality of circulation fans 8 on the ceiling surface 1c and space 1d of the house 1, and adjusting the depression angle and / or turning of the circulation fan 8 (by selection), For example, since the total air flow AB can be accelerated and / or changed in direction, the following synergistic characteristics can be considered in this example. Thus, there is practicality such that an external air introduction type forced ventilation system can be constructed or a high-temperature suppression system can be proposed. The circulation fan 8 includes a substantially cylindrical casing 800 and blades provided on the casing 800. A car 801, a current plate 802 and a motor 803 are provided. The depression angle adjusting device 11 includes a support plate 13 provided on the hanging rod 12, a support piece 1300 provided on the support plate 13, the support piece 1300 and a support plate 8a of the circulation fan 8, and a circulation fan. 8 is adjusted through the pivotal connection between the support piece 1300 and the support plate 8a. Further, the swivel device 15 is configured to be provided on the hanging rod 12, and the circulation fan 8 is swung (swinged) through the swivel device 15. The depression angle adjustment and / or turning of the circulation fan 8 is appropriately selected and / or set as appropriate. The depression angle adjustment and / or turning of the circulation fan 8 can be automatically adjusted.

[6] Temperature difference ventilation on the ceiling surface 1c of the house 1 (according to a skylight not shown) is promoted, the time during which the house 1 can be safely operated in terms of the thermal environment is lengthened, and the total air flow AB and ventilation are increased. Ensuring further combined ventilation and / or airflow;
[7] There are effects such as being able to construct an external air introduction type forced ventilation system or being able to propose a high-temperature suppression system.
[8] By blowing down the warm air on the ceiling surface 1c of the house 1 toward the ground, it is possible to ensure the mixing of the air in the house 1 and eliminate the temperature unevenness (temperature difference) of the house 1, or suitable for crops An effective environment, and a gentle wind can be sent to the entire crop to ensure carbon assimilation.
[9] And it is possible and useful to blow down the air in the furrow to eliminate the harmful effects of wind on the crop.
[10] In particular, when the warm air is blown down toward the ground, in one example in which the net 2 is not provided in the house 1, the air is reliably blown downward.

Fig. 1 is a perspective view of the whole house equipped with a ventilation fan with a net and an introduction fan with a net. 2 is a schematic side view of FIG. FIG. 3 is a top view of the whole house partially missing from FIG. 4 is a front view showing the whole circulation fan. FIG. 5 is a perspective view of the whole house with a partial cutout showing another example of FIG. FIG. 6 is a schematic side view showing another example of FIG. FIG. 7 is a front view showing the entire circulation fan of FIG. FIG. 8 is a side view showing another example of the house without the net shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 House 1a Longitudinal direction 1b Orthogonal 1c Ceiling surface 1d Space part 100 Long side surface 101 Short side surface 2 Net 20 Net 3 Entrance / exit 4 Ventilation fan 5 Introduction fan 8 Circulation fan 8a Support plate 800 Casing 801 Impeller 802 Rectification plate 803 Motor 11 Angle adjustment Device 12 Hanging rod 13 Support plate 1300 Support piece 15 Swivel device 20 Net A Air flow A1 Internal wall surface AB General air flow B Air flow

Claims (6)

A house ventilation system in which nets are stretched on both longitudinal sides of the house in the longitudinal direction and ventilation fans and / or introduction fans are provided on both lateral sides of the house in the short direction,
Introducing outside air into the house through the introduction fan, exhausting the inside air of the house through the ventilation fan substantially simultaneously,
In this execution process, outside air is introduced almost uniformly into the house,
In this execution process, the introduced outside air is blown in multiple directions in the house through a circulation fan installed in the house.
The house ventilation system is configured to maintain an optimum growth environment for the plants in the house while at least homogenizing the temperature in the house. A house ventilation system provided with a ventilation fan and / or an introduction fan on both short sides of the house in the short direction,
Introducing outside air into the house through the introduction fan, exhausting the inside air of the house through the ventilation fan substantially simultaneously,
In this execution process, outside air is introduced almost uniformly into the house,
In this execution process, the introduced outside air is blown in multiple directions in the house through a circulation fan installed in the house.
The house ventilation system is configured to maintain an optimum growth environment for the plants in the house while at least homogenizing the temperature in the house.   The ventilation system of the house according to claim 1 or 2, wherein the circulation fan installed on the ceiling surface and the space portion is adjustable in depression angle and / or swingable to actively diffuse outside air in the house. A house ventilation system that can be blown down and that can enhance the characteristics of the airflow.   The ventilation system for a house according to claim 1 or 2, wherein a fine fog means is installed on a ceiling surface and a space portion, and the fine fog is diffused by riding on an air flow of introduced outside air. House ventilation system that allows cooling.   The ventilation system for a house according to claim 1 or 2, wherein the nets on both longitudinal sides thereof are extended to the floor, and the house can prevent the invasion of pests and beasts that crawl the ground. Ventilation system.   The ventilation system for a house according to claim 1 or 2, wherein the nets on both longitudinal sides thereof are extended to the floor surface, and the insects and pests such as aphids and whiteflies are located approximately 1 m from the ground. House ventilation system that prevents intrusion.

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