JP6563732B2 - Natural ventilation wet shelter and measuring device - Google Patents

Description

  The present invention relates to an apparatus for measuring the temperature, wet bulb temperature, and evaporation amount that affects the influence of growth of animals and plants in agriculture, animal husbandry, poultry farming and the like.

  Conventionally, air temperature, moisture temperature, and evaporation have been measured with dedicated equipment. For example, a temperature sensor is required for measuring the temperature, and a humidity sensor is required for measuring the humidity. In addition, in order to accurately measure temperature and humidity, the sensor is equipped with a sunshade so that solar radiation and radiant heat do not affect it, and forced ventilation is performed using a fan to achieve equilibrium with the surrounding air. Was necessary.

Water was sprinkled on an evaporation pan having a diameter of 120 cm, and the amount of decrease in the water level was measured with a water level gauge to measure the amount of evaporation. In order to improve the measurement of the evaporation amount, an evaporation meter disclosed in Japanese Patent Laid-Open No. 2000-75051 has been proposed.
Since this evaporator measures the change in weight due to the amount of evaporation before and after the measurement with a balance, it requires a separate balance and is troublesome to measure by removing it one by one. Further, since the porous cup is shaped like, for example, the bottom of a test tube with a rounded tube tip, there is a possibility that the evaporation amount differs from the normal evaporation amount measurement. Furthermore, since water is supplied to the porous cup at a position higher than the water surface in the container by the capillary, there is a possibility that measurement cannot be performed if the capillary is broken or the continuity of the water in the capillary is interrupted.

JP 2000-75051 A

  Then, it aims at providing the measuring apparatus which can also measure even the natural ventilation wet shelter which can measure the evaporation amount integrally, and temperature and wet bulb temperature.

In order to achieve this object, the natural ventilation wet shelter according to the present invention has an upper opening and a lower opening, a cylindrical member having a measurement scale on its surface, and the lower opening of the cylindrical member is closed. It is characterized by comprising a porous plate-like member that stores water in the tubular member, permeates and evaporates the water, and a plug that closes the upper opening of the tubular member.
Furthermore, the measuring device of the present invention has an upper opening and a lower opening, a cylindrical member having a measurement scale on its surface, and the lower opening of the cylindrical member is closed, and water is stored in the cylindrical member. A porous plate member that permeates and evaporates the water, a plug that closes the upper opening of the cylindrical member, and a temperature sensor that is placed in contact with the porous plate member at the bottom of the cylindrical member And a data logger for recording and storing measurement data from a temperature sensor placed somewhat below the porous plate-like member.

  ADVANTAGE OF THE INVENTION According to this invention, the measuring apparatus which can also measure even the natural ventilation wet shelter which can measure the amount of evaporation integrally, and temperature and wet bulb temperature can be provided.

It is the front view which carried out the partial fracture | rupture of the measuring apparatus provided with the natural ventilation wet shelter of this invention. It is a perspective view which fractures | ruptures and shows a part of porous plate-shaped member which has the fitting part which fits and supports a cylindrical member in the natural ventilation wet shelter of FIG. It is a figure which shows the use condition of a measuring apparatus.

  Hereinafter, the present invention will be described with reference to the drawings showing preferred embodiments.

FIGS. 1 to 3 show a natural ventilation wet shelter 10 according to the present invention and a measuring device 100 capable of measuring even air temperature and wet bulb temperature.
《Naturally ventilated wet shelter》
The natural ventilation wet shelter 10 is mainly composed of a cylindrical member 11, a porous plate-like member 12, and a stopper 15. The cylindrical member 11 is made of a transparent material that does not allow water W to permeate, has an upper opening 11a and a lower opening 11b, and has a measurement scale 11c on the surface.

  Here, the cylindrical member 11 may have a cross-sectional shape of a cylinder that may be a square or a triangle, but a cylinder having a circular cross-section is adopted in terms of manufacturability and handling.

  The material needs transparency in order to see the water level WL inside, and glass, acrylic, etc. are conceivable, but vinyl chloride resin is preferred because it is hard to break and is inexpensive. Therefore, the cylindrical member 11 is preferably a transparent PVC pipe.

  For the transparency, even if the material is opaque, it is sufficient that transparency is secured by attaching or processing a material that makes the ground transparent in the vertical direction portion where the measurement scale 11c is attached.

The lower opening 11b of the cylindrical member 11 is fixed by bonding or inserting a porous plate-shaped member 12 that closes the water and stores the water W in the cylindrical member 11 and permeates and evaporates the water W.
The porous plate-like member 12 uses any one of ceramic, paper, cloth, porous plastic, porous metal, porous rubber, and porous glass as a material that allows water to penetrate and evaporate. Processed to allow desired penetration and evaporation.
The porous plate-like member 12 may be fixed to the lower opening 11b of the cylindrical member 11 with only the flat plate portion 13 shown in FIGS. 1 and 2 by bonding or the like, or is fitted inside or outside the cylindrical member 11. The fitting portion 14 may be provided integrally so that the connection can be made solid. The fitting portion 14 is for lowering the water W to the moisture soaking temperature. If the wet bulb temperature measurement is not necessary, the fitting portion 14 may be omitted.
Here, when the fitting portion 14 is fitted from the outside, the evaporation area is the area obtained by subtracting the area of the lower surface of the flat plate portion 13, the upper area of the flat plate portion 13 from the inner peripheral area of the fitting portion 14 and the lower end area of the cylinder end surface, It is the sum of the outer peripheral area of the thickness portion of the flat plate portion 13, the outer peripheral area of the fitting portion 14, and the upper end area of the cylindrical end surface of the fitting portion 14. Further, when the fitting portion is inserted and fitted inside, the evaporation area is the area of the lower surface of the flat plate portion 13, the area obtained by subtracting the inner peripheral area of the fitting portion 14 and the lower end area of the cylinder end surface from the upper area of the flat plate portion 13, This is the sum of areas obtained by subtracting the outer peripheral area where the cylindrical member 11 overlaps from the outer peripheral area of the thickness portion of the flat plate portion 13 and the outer peripheral area of the fitting portion 14.

  The tubular member 11 includes a plug 15 that closes the upper opening 11a. This prevents the water W from flowing out of the porous plate-like member 12 due to the water pressure of the water W. The stopper 15 may be natural rubber or synthetic resin, but is preferably made of silicon in consideration of weather resistance and chemical resistance.

  Since the measurement scale 11c is attached to the cylindrical member 11, the amount of evaporation can be seen at a glance by the water level WL as in the so-called graduated cylinder.

The smaller the inner diameter of the cylindrical member 11, the smaller the amount of evaporation that can be detected. Conversely, if the inner diameter of the cylindrical member 11 is increased, a large amount of water can be stored, and measurement can be performed for a long time without replenishing water. The size of the cylindrical member 11 can be changed as necessary, and accordingly, the size of the fitting portion 14 needs to be changed. Moreover, when the diameters of the cylindrical member 11 and the fitting part 14 differ, it can respond | correspond as needed using the different diameter socket from which a diameter differs at both ends.
"measuring device"
The measuring apparatus 100 includes a natural ventilation wet shelter 10 provided with a measurement recording apparatus 20. The measurement recording device 20 includes a temperature sensor 21 placed in contact with the bottom of the cylindrical member 11 of the natural ventilation wet shelter 10, the upper surface of the flat plate portion 13 that is the porous plate member 12, and the porous plate member 12. For example, a temperature sensor 22 is provided below the flat plate portion 13 at a distance of about 1 cm, for example, and a data logger 23 that records and stores measurement data from the temperature sensors 21 and 22 is provided.

  The temperature sensors 21 and 22 and the data logger 23 are appropriately connected. In particular, the temperature sensor 21 may be wired between the tubular member 11 and the fitting portion 14 of the porous plate-like member 12 and between the tubular member 11 and the plug 15. The cylindrical member 11 may be drilled and arranged. In these cases, a tight seal is necessary.

For example, a band clamp 31 is attached to the upper part of the tubular member 11, and a suspension member 33 to which a hook 32 is attached is provided. For example, the measuring apparatus 100 includes a house 40 assembled with a horizontal beam 41 and a vertical beam 42. A horizontal member 41 is used by being suspended by a suspension member 33.
"how to use"
Water W is put into a cylindrical member 11 whose bottom is blocked by a porous plate-like member 12 of a natural ventilation wet shelter 10 as shown in FIG. Next, the stopper 15 is put on and waits for the water W to sufficiently penetrate into the porous plate-like member 12.

  As shown in FIG. 3, the natural ventilation wet shelter 10 in this state is suspended by a suspension member 33 in a space such as a house 40 that is a desired measurement location to prepare for measurement.

  Next, the water level WL is read and the time is recorded.

  When evaporation starts, the water level WL decreases after a certain time, and the amount of evaporated water is calculated by reading the scale at that time. The evaporation amount is calculated by dividing the evaporation water amount by the evaporation area shown above.

  On the other hand, due to the latent heat of vaporization caused by the evaporation of water W from the porous plate-like member 12, cooling occurs in the porous plate-like member 12, and the temperature of the porous plate-like member 12 decreases to near the wet bulb temperature. Therefore, the temperature sensor 21 placed in contact with the porous plate-like member 12 at the bottom of the cylindrical member 11 indicates the wet bulb temperature.

  The temperature sensor 22 receives radiant heat from surrounding objects during the day and is shown to be higher than the air temperature. However, the radiant heat is offset by the cold air and the radiant cooling from the porous plate-like member 12. As a result, it is possible to measure the temperature more accurately than a simple awning or temperature measurement using a normal natural ventilation shelter.

  The measurement recording device 20 sends the data of the temperature sensors 21 and 22 to the data logger 23 and is stored in a consolidated record.

  If it is necessary to determine the relative humidity, it can be calculated from the temperature and wet bulb temperature obtained here.

  In short, according to the natural ventilation wet shelter of the present invention, it is not necessary to measure the temperature, relative humidity, wet bulb temperature, and evaporation amount with individual instruments, and the evaporation amount can be easily measured on the spot as a whole. Can measure.

  In addition, according to the measurement apparatus of the present invention, the accuracy of the temperature measurement is completely different from the conventional idea in that the generation of cold air and radiative cooling are caused by the latent heat of vaporization and the radiant heat from surrounding objects is offset. I was able to expect.

  Further, regarding the measurement of the wet bulb temperature, it was found from observation that the temperature of the porous plate-like member was lowered to near the wet bulb temperature due to latent heat of vaporization, and this measurement was made possible.

  Furthermore, it is novel in that it has been found that there is a correlation between the amount of evaporation from the porous plate-like member and the amount of evaporation measured with a small evaporation pan.

  Since air temperature, wet bulb temperature, and evaporation can be easily measured without the need for a power source, it can be measured at any location and can be used in the fields of agriculture and livestock such as greenhouses, houses, and barns.

10: Natural ventilation wet shelter 11: Cylindrical member 11a: Upper opening 11b: Lower opening 11c: Measurement scale 12: Porous plate member 13: Flat plate part 14: Insertion part 15: Plug 20: Measurement recording device 21: Temperature sensor 22: Temperature sensor 23: Data logger 100: Measuring device W: Water WL: Water level

Claims (7)

It is a material that does not permeate water, has a top opening and a bottom opening, and a cylindrical member with a measurement scale on the surface,
A porous plate member that closes the entire lower opening of the tubular member, stores water in the tubular member, and permeates and evaporates the water;
A plug for closing the upper opening of the tubular member ;
A natural ventilation wet shelter characterized in that the upper opening of the tubular member is closed with the stopper, thereby preventing water from flowing out of the porous plate member due to water pressure . In the natural ventilation wet shelter according to claim 1,
The porous plate-like member is integrally provided with a fitting portion for fitting and supporting the cylindrical member ,
The natural ventilation wet shelter , wherein the tubular member is fitted into the fitting portion so that the outer circumferential surface of the cylindrical member and the inner circumferential surface of the fitting portion are in contact with each other. In the natural ventilation wet shelter according to claim 1 or 2,
The naturally ventilated wet shelter characterized in that the porous plate-shaped member is any one of ceramic, paper, cloth, porous plastic, porous metal, porous rubber, and porous glass. In the natural ventilation wet shelter according to any one of claims 1 to 3,
The natural ventilation wet shelter characterized in that the cylindrical member is a cylinder. In the natural ventilation wet shelter according to any one of claims 1 to 4,
A natural ventilation wet shelter, wherein the tubular member is provided with a suspension member. A cylindrical member having an upper opening and a lower opening, with a measurement scale on the surface;
A porous plate member that closes the lower opening of the tubular member, stores water in the tubular member, and permeates and evaporates the water;
A plug for closing the upper opening of the tubular member;
Data for recording and storing measurement data from a temperature sensor placed in contact with the porous plate-like member at the bottom of the cylindrical member and a temperature sensor placed somewhat below the porous plate-like member A measuring apparatus comprising a logger. The measuring device according to claim 6 .
A measuring apparatus, wherein the tubular member is provided with a hanging member.