JP2013257126A - Cooling system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooling system capable of carrying out hot preventing countermeasure and ventilation countermeasures by a simple installation investment and enabling energy saving.SOLUTION: A cooling system has a water storing tank storing a certain amount of water, a water circulation pump arranged in a water storing tank, a water supply pipe circulating water pumped up from the water storing tank by the water circulation pump, a water spray nozzle arranged in a terminal end of the water supply pipe, a cool pad as a heat exchanger, an air sucking blower sucking outdoor air via the cool pad, and a plurality of vinyl ducts in which a plurality of blowing out openings for blowing the outdoor air sucked by the air sucking blower into a room are arranged, blows the outdoor air cooled by evaporation heat of water into the room from the plurality of blowing out openings arranged in the plurality of vinyl ducts by spraying water to the cool pad by the water spraying nozzle and by sucking the outdoor air via the cool pad by the air sucking blower.

Description

  The present invention relates to a cooling system used in livestock barns, warehouses, factories, houses, etc. for livestock (pigs, chickens, cattle, etc.).

  In recent years, the temperature has risen to a subtropical level during the summer in Japan. For this reason, various measures against heat and ventilation are taken in barns, warehouses, factories, houses, and the like.

Especially in the barn where pigs, cattle, chickens, etc. are bred, due to insufficient heat and ventilation measures,
(A) Decrease in egg-laying rate, increase in broken eggs and soft eggs, and increase in dying chickens at poultry farms.
(B) Growth failure of broilers (young chickens bred for meat), increased thermal death, and increased amount of waste in poultry inspection.
(C) In pig farms, the reproductive performance declined (increased fertility), and in pigs for meat, the number of breeding days was prolonged due to a decrease in body weight due to poor growth and the feed demand rate was worsened.
(D) In cowshed, milk volume decreased and fertility increased.
It becomes a problem that obstacles such as appear.

  The current mainstream measures to prevent heat and ventilate are to stir the air in the barn to achieve a uniform room temperature with sufficient airflow obtained by increasing the number of ventilation fans installed in the barn. It is. As such a method, a longitudinal ventilation method, a transverse ventilation method, a tunnel ventilation method and various ventilation methods are provided.

  In addition, in a barn managed by a company with capital, a windless method with a large capital investment is adopted. In this windless system, a large number of ventilation fans are provided with the barn in a windowless state, and the operation of the ventilation fans is automatically controlled to keep the air temperature in the barn constant.

  For example, as a windless poultry house, an air inlet is provided in the front end wall in the short direction of the poultry house, an exhaust outlet is provided in the rear end wall, and the air in the poultry house is supplied by a plurality of ventilation fans provided inside the exhaust outlet. The thing which discharges | emits outside a poultry house and performs the heat-proof measures and ventilation measures in a poultry house is proposed (refer patent document 1).

JP-A-8-9820

  However, in the windless method as in Patent Document 1, not only a large amount of capital investment is required, but also the number of ventilation fans cannot be reduced and a large number of ventilation fans need to be operated. In other words, there is a problem that it is not possible to reduce costs by reducing power consumption.

  In addition, the above-mentioned cost savings due to power saving are not only a problem in livestock farms, but also in warehouses that store items at a constant temperature, factories where people work, and private houses that require measures against heat and ventilation. It has become.

  In order to solve the above-described problems, an object of the present invention is to provide a cooling system capable of taking sufficient heat-proofing measures and ventilation measures with a simple capital investment and further saving power.

  In order to solve the above problems, the invention according to claim 1 is a water storage tank for storing a certain amount of water, a water circulation pump provided in the water storage tank, and a pump for water circulation from the water storage tank. A water supply pipe that circulates the generated water, a water spray nozzle provided at an end of the water supply pipe, a cool pad as a heat exchanger, an intake fan that draws outside air through the cool pad, and the intake fan A plurality of vinyl ducts provided with a plurality of air outlets for blowing the outside air sucked in in the room, water is sprayed on the cool pad by the water spray nozzle, and the cool pad is sprayed by the intake fan. The outside air cooled by the heat of vaporization of water is blown into the room through a plurality of outlets provided in the plurality of vinyl ducts. And a cooling system.

  In the invention according to claim 2, the plurality of vinyl ducts are provided at a predetermined interval in parallel with a long side in the longitudinal direction of the room in which the cooling system is arranged, and among the plurality of vinyl ducts The vinyl duct provided on the center side of the room is cut in the middle, and the vinyl ducts other than the vinyl duct provided on the center side are installed with a length substantially the same as the long side in the longitudinal direction of the room. It is characterized by that.

  According to the present invention, water is sprayed on the cool pad from above with a shower nozzle by a water circulation pump, and outside air is taken in by the intake fan through the cool pad, so that the air cooled by the heat of vaporization due to water evaporation is indoors. In addition, it is possible to reduce the power consumption by reducing the number of ventilating fans because the cooled air can be blown into the room efficiently with multiple duct vinyls installed in the room. A system can be provided.

It is a top view which shows the cooling system of this invention. It is a top view which shows the structure which provided the cooling system of this invention indoors. It is a figure explaining the shape of the blower outlet in the cooling system of this invention. It is a figure explaining the shape of the blower outlet in the cooling system of this invention. It is a figure explaining the example of installation of the vinyl duct in the cooling system of this invention.

Hereinafter, with reference to the drawings, an embodiment of a cooling system capable of simultaneously implementing a heat protection measure and a ventilation measure according to the present embodiment will be described.
[First embodiment]

  With reference to FIGS. 1-5, the Example of a cooling system is described. FIG. 1 is a plan view showing a cooling system of the present invention. FIG. 2 is a plan view showing a configuration in which the cooling system of the present invention is provided indoors. 3 and 4 are views for explaining the shape of the outlet in the cooling system of the present invention. FIG. 5 is a diagram for explaining an installation example of a vinyl duct in the cooling system of the present invention.

  As shown in FIG. 1, in the cooling system 50 according to the present embodiment, a cool pad 4 as a heat exchanger is provided at a substantially central portion of the frame 7 in contact with outside air. A water spray nozzle 1 that sprays water on the cool pad 4 is provided above the cool pad 4. Below the cool pad 4, there is provided a water storage tank 8 for collecting the water that has been transmitted through the cool pad 4 and stored below the frame 7. In this water storage tank 8, a constant amount of water is always present. Water is supplied from a water supply (not shown) and stored.

  A water circulation pump 2 is installed in the water storage tank 8, and water is supplied from the water circulation pump 2 to the water spray nozzle 1 through the water supply pipe 3 at a predetermined pressure. That is, the water spray nozzle 1, the water storage tank 8, the water circulation pump 2, and the water supply pipe 3 always spray a certain amount of water onto the cool pad 4 from above the cool pad 4 in the frame 7.

  Between the cool pad 4 installed in the frame 7 and the duct vinyl 6 disposed in the room, an intake fan 5 for taking in outside air is installed. When the intake fan 5 is operated, outside air (hereinafter referred to as cold air) cooled by the heat of vaporization of water is supplied to the duct vinyl 6 via the cool pad 4 as a heat exchanger.

  A parent duct vinyl 9 is connected to a substantially central portion of the duct vinyl 6, and the cold air sucked by the intake fan 5 is supplied to the parent duct vinyl 9 via the duct vinyl 6. And in the parent duct vinyl 9, a plurality (six in the embodiment) of the child duct vinyls 10, 11, 12, 13, 14, and 15 are long side in the longitudinal direction in the room where the cooling system 50 is arranged. They are connected in parallel at a predetermined interval. A plurality of outlets 20 are provided in the child duct vinyls 10, 11, 12, 13, 14, 15 and finally, the child duct vinyls 10, 11, 12, 13, 14, The cold air supplied to 15 is blown out from the air outlet 20 and is blown into a room such as a barn where the cooling system 50 according to the present embodiment is installed.

  As described above, in the cooling system 50 according to the present embodiment, the cool pad 4 as a heat exchanger is cooled by the heat of vaporization of water, and the outside air is supplied into the room such as a barn using the intake fan 5 and cooled. To do. Moreover, in order to reduce indoor temperature efficiently and uniformly, it is set as the structure which sends cold air from the several blower outlet 20 through the child duct vinyl 10, 11, 12, 13, 14, 15.

An installation example of the cooling system 50 in the present embodiment will be described with reference to FIG.
As shown in FIG. 2, the barn 100 according to the present embodiment is formed in a substantially rectangular shape (for example, the short side is 10 m and the long side is 70 m) that extends in the front-rear direction. A frame 7, a cool pad 4, an intake fan 5, a duct vinyl 6, and the like are installed on the front end wall 101 in the short direction of the barn 100 as a cooling unit 30 for cooling and taking in outside air. 2, the water spray nozzle 1, the water storage tank 8, the water circulation pump 2, the water supply pipe 3, and the like are also installed in the cooling unit 30 shown in FIG.

  Then, the cool air sucked from the cooling unit 30 and supplied to the child duct vinyls 10, 11, 12, 13, 14, and 15 through the parent duct vinyl 9 is blown out from the air outlet 20, and is cooled according to this embodiment. The air is blown into a room such as a barn 100 where the system 50 is installed.

  The child duct vinyls 10, 11, 14, and 15 are installed with substantially the same length as the long side in the longitudinal direction of the barn 100, whereby cold air is supplied to every corner of the entire room of the barn 100. Become. Of the child duct vinyls 10, 11, 12, 13, 14, and 15, the child duct vinyls 12 and 13 provided in the center are cut at a substantially central portion of the barn 100, and the cool air is generated from the cut portions. It blows out inside. Thereby, the air in the room of the barn 100 can be stirred moderately, and the temperature in the barn 100 can be equalized.

  As shown in FIG. 1, the plurality of outlets 20 provided on the side surfaces of the subsidiary duct vinyls 10, 11, 12, 13, 14, 15 are one of the subsidiary duct vinyls 10, 11, 12, 13, 14, 15. Although it may be provided on the side surface at equal intervals, as shown in FIG. 2, it is also possible to provide the child duct vinyls 10, 11, 12, 13, 14, and 15 at equal intervals on both side surfaces. Thereby, the cold air can be efficiently supplied to the entire room of the barn 100.

  Here, the duct vinyl 6, the parent duct vinyl 9, and the child duct vinyls 10, 11, 12, 13, 14, and 15 in this embodiment are ducts made of vinyl having a thickness of several millimeters (1-2 mm). The child duct vinyls 10, 11, 12, 13, 14, and 15 are thin vinyl ducts having a thickness of 0.1 mm. Thus, by using a duct made of thin vinyl, it becomes easy to process the shape and install it in the barn 100, and the initial investment for installing the cooling system 50 according to the present embodiment can be kept low, Maintenance is also easy.

  A plurality of (for example, three) ventilation fans 40 for exhausting the air inside the barn 100 are provided on the rear end wall 102 in the short direction of the barn 100. In this embodiment, since cold air is forcibly supplied from the cooling unit 30 into the barn 100, the air pressure of the barn 100 becomes higher than the outside air, so that the barn 100 can be smoothly and smoothly used without using the high-power ventilation fan 40. Air can be discharged to the outside. In addition, since the one where the number of the ventilation fans 40 is as small as possible leads to power saving, it is desirable to operate the minimum number appropriately according to the temperature in the room of the barn 100.

  The configuration of the plurality of outlets 20 provided in the child duct vinyl 10, 11, 12, 13, 14, 15 and the installation example of the child duct vinyl 10, 11, 12, 13, 14, 15 in this embodiment It demonstrates using 3-5. In addition, although demonstrated using the child duct vinyl 10 in FIGS. 3-5, it is the same structure also in another child duct vinyl.

  As shown in FIG. 3, the child duct vinyl 10 is provided with a plurality of air outlets 20 at a constant interval H (for example, 200 mm). Moreover, the blower outlet 20 is formed by the X-shaped cut. As described above, since the child duct vinyl 10 is a vinyl duct having a thickness of 0.1 mm, the child duct vinyl 10 is in a substantially flat state in a state where no cold air is supplied. Moreover, the process at the time of forming the several blower outlet 20 by X-shaped notch | incision is easy by using the child duct vinyl 10 made from such a thin vinyl.

  Then, when cold air is supplied by the cooling unit 30, as shown in FIG. 4, the child duct vinyl 10 swells with the pressure of the cold air supplied to the child duct vinyl 10, and a plurality of X-shaped cuts are formed. The air outlet 20 is deformed into a substantially circular shape, and cold air is blown into the room of the barn 100 from the air outlet 20 deformed into a substantially circular shape. In other words, the air outlet 20 provided in the child duct vinyl 10 is simply an X-shaped cut when cold air is not supplied. However, when the cold air is supplied, the air outlet 20 has an X character shape. Therefore, the cool air is efficiently blown into the room of the barn 100.

  When the child duct vinyl 10 is installed in the room of the barn 100, as shown in FIG. 5, for example, the child duct vinyl 10 is formed in a hanging hand shape so that the child duct vinyl 10 can be inserted into the H steel 200 on the ceiling of the barn 100. A plurality of suspension portions 210 are provided at predetermined intervals, and the child duct vinyl 10 can be held by the suspension portions 210.

  In this case, the child duct vinyl 10 is disposed in the vicinity of the ceiling of the barn 100, but the cold air supplied from the child duct vinyl 10 to the room of the barn 100 moves downward, and the warm air in the room moves upward. And since the air in the room of the barn 100 is stirred efficiently, the temperature in the room of the barn 100 can be made uniform.

Here, using a cooling system 50 according to the present embodiment has been described above, found by the applicant of the present invention when the diameter of 600 mm, is the air volume of air using a suction fan 5 the capacity of 150m ³ ~160m ³ per minute The indoor temperature by
Example 1 (in the case of outside temperature 36.5 ° C)
From the cooling part 30, 31.2 degreeC at 10 m, 31.1 degreeC at 20 m, 31.7 degreeC at 30 m, 32 degreeC at 60 m, 32.5 degreeC at 80 m.
Example 2 (when the outside temperature is 38 ° C)
From the cooling part 30, it is 32 degreeC at 10 m, and 32.8 degreeC at 20 m.
The actual measured value was obtained.
In other words, the room temperature is 4.0 ° C to 5.4 ° C in Example 1 and 5.2 ° C to 6.0 ° C in Example 2 with respect to the outside air temperature. is there.

In addition, when the room of the livestock house 100 is agitated and ventilated using a number of conventional ventilation fans (using 12 ventilation fans), the room of the livestock house 100 is cooled and ventilated using the cooling system 50 according to the present embodiment. If the amount of electricity used in the case (using the cooling unit 30 and one ventilation fan) is compared,
Traditionally,
Electricity consumption of 12 ventilation fans: (0.4 kW x 24 h x 30 days = 288 kW / month) x 12 units = 3456 kW
In the cooling system 50 according to the present embodiment,
Electric consumption of intake fan 5 and water circulation pump 2 (cooling unit 30): 0.3 kW × 24 h × 30 days = 216 kW / month (a)
Electricity consumption of one ventilation fan: 0.4 kW x 24 h x 30 days = 288 kW / month (b)
(A) + (b) = 504 kW
Thus, it was possible to obtain an actual measurement value indicating that the amount of electricity used was about 1/6 of a monthly unit (that is, the electricity bill was 1/6) compared to the conventional case.

  As described above, according to the cooling system 50 according to the present embodiment, sufficient heat protection measures and ventilation measures can be taken with a simple capital investment, and furthermore, the amount of electricity used (that is, power saving) can be reduced. A cooling system can be provided.

  Moreover, although the present Example mentioned above has demonstrated cooling of the room | chamber interior of the barn 100 as an example, this invention is not restricted to this, It can also be used for cooling indoors, such as a warehouse, a factory, and a residence. In particular, in a situation where power saving is necessary to prevent a shortage of power supply in the summer, the cooling system 50 according to the present invention is used as a substitute for a conventional air conditioner in an individual house or the like while saving power. It is possible to take effective measures against heat and ventilation.

  As mentioned above, although this invention has been demonstrated through each Example, this invention is not limited to these. Moreover, each effect mentioned above only enumerated the most suitable effect which arises from this invention, and the effect by this invention is not limited to what was described in each Example.

DESCRIPTION OF SYMBOLS 1 Water spray nozzle 2 Water circulation pump 3 Water supply pipe 4 Cool pad 5 Intake fan 6 Duct vinyl 7 Frame 8 Water storage tank 9 Parent duct vinyl 10, 11, 12, 13, 14, 15 Child duct vinyl 20 Air outlet 50 Cooling system

Claims (2)

A water storage tank that stores a certain amount of water,
A water circulation pump provided in the water storage tank;
A water supply pipe for circulating water pumped up from the water storage tank by the water circulation pump;
A water spray nozzle provided at the end of the water supply pipe;
Cool pad as a heat exchanger,
An intake fan that draws outside air through the cool pad;
A plurality of vinyl ducts provided with a plurality of outlets for blowing outside air sucked by the intake fan into the room;
With
The plurality of vinyl ducts are provided with the outside air cooled by the heat of vaporization of water by spraying water on the cool pad by the water spray nozzle and sucking outside air through the cool pad by the intake fan. A cooling system characterized in that air is blown into the room from a plurality of outlets. The plurality of vinyl ducts are provided at predetermined intervals in parallel with the long side in the longitudinal direction of the room where the cooling system is disposed,
Among the plurality of vinyl ducts, the vinyl duct provided on the center side of the room is cut in the middle, and the vinyl ducts other than the vinyl duct provided on the center side are substantially the long side in the longitudinal direction of the room. The cooling system according to claim 1, wherein the cooling system is installed with the same length.

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