JP2019158272A - Cooling device - Google Patents

Abstract

To provide a cooling device having such a problem that water accumulates on a plurality of flat plates and bacteria are generated when the plurality of flat plates are provided in an air duct through which mist-containing mixed air is passed.SOLUTION: A cooling device is provided with N≥1 first collision plates 42 mounted on an inner surface of a supply duct 22, and N-1 or N second collision plates 44 mounted above the first collision plates 42. Each of them is obliquely arranged so that water droplets separated from mist-containing mixed air are flown toward the collision plate set below. Also, a flow passage where flow is contracted by disposing a horizontal bottom plate 40 below the first collision plate 42 located on the lowest part inside the supply duct 22, is formed. As a result of this, the water droplets separated from the mist-containing mixed air accumulate in a part where the flow rate is increased due to the narrowed passage, and thereby evaporation is promoted. Accordingly, water accumulation on the top surface of the collision plate is prevented, and generation of bacteria during long-time operation is prevented.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a cooling device that cools an outdoor space by ejecting mist.

  When the summer temperature is high, the temperature near the road surface may become very high due to reflection from the road surface. In this case, the temperature of the passer's sensation increases and the discomfort of the passerby increases.

  In order to reduce such discomfort, the main body, at least one spray nozzle that is installed around the main body and sprays water in the form of a mist outward, and is installed above the spray nozzle to spray the airflow. There exists a cooling device provided with the vent hole which blows off toward the mist sprayed from a nozzle. In such a cooling device, the environment formed by the airflow space that wraps the mist sprayed from the spray nozzle can be efficiently cooled using the cooling action by the vaporization heat of the mist. However, since the temperature of the airflow blown out from the vent hole increases on a day when the outside air temperature is high, the amount of temperature drop in the environment formed by the airflow space that wraps the mist sprayed from the spray nozzle is small. Therefore, even in the daytime when the outside air temperature is high, the environment can be efficiently cooled by circulating the air in the space cooled by the evaporation effect of mist in order to suppress the temperature rise of the airflow blown out from the vent. it can. At this time, when a droplet in which the remaining mist that cannot be evaporated condenses enters the circulating air passage, it adversely affects the electrical components in the air passage. In order to prevent this, as shown in FIG. 4, Patent Document 1 discloses a technique related to air-water separation under forced convection. According to this, the wet steam generated in the boiler flows into the steam separator from the steam inlet 3 and collides with the first stage baffle 8, so that the space between the bottom part and the first stage baffle 8 is in the center part. Flowing while changing the direction to separate the saturated water. The wet steam flowing in from the left and right collides and joins at the center, collides with the second stage baffle 11 through the opening 9 of the steam passage gap provided at the center of the first stage baffle 8, and branches right and left. Again, the saturated water is effectively separated by the collision of the steam and the change in the flow direction. The branched steam collides with the left and right side plates 2 and flows through the openings 10 of the steam passages provided on both sides of the second baffle 11 and flows again, and then merges again to reach the upper center of the casing 1. From the provided steam outlet 6, it is discharged as steam with a high dryness.

JP-A-9-137905

  However, as in the prior art described in Patent Document 1, a structure in which horizontal plates are alternately combined is provided in the circulation air path in order to separate the air and water using a collision due to a difference in specific gravity of air and water and centrifugal force. In this case, the mist separated from the gas collects in the upper part of the baffle. In addition, since the upper part of the baffle is a stagnation space where the airflow is very slow, the water accumulated in the upper part of the baffle remains without evaporating.

  Thereby, when driving | running for a long term, there existed a subject that bacteria generate | occur | produce in the water which accumulated without evaporating. The present invention solves the above-mentioned conventional problems, and the generation of bacteria caused by water remaining for a long period of time by inducing mist separated from the air to a place where the flow velocity in the air passage is high and promoting evaporation. It aims at providing the cooling device which prevents.

In order to solve the conventional problems, the cooling device of the present invention includes a plurality of supply ports into which air flows, a supply duct that supplies air flowing in from the supply ports to the blowout duct, and an air flow that is provided in the blowout duct. A blowout outlet,
A supply duct or a blower disposed in the blowout duct; and a spray nozzle that is provided in the blowout duct and sprays mist toward a space that blocks natural wind by an airflow blown out from the blowout outlet. A bottom plate installed horizontally, a first opening provided in the bottom plate, a boundary surface passing through the center of the area of the cross section formed when the supply duct is divided horizontally, and dividing the supply duct vertically The first space including the center of the area of the first opening and configured by the boundary surface and the inner surface of the supply duct; the second space formed when the first space is removed from the supply duct; and the bottom plate The upper surface of the supply duct has a second opening with a central area in the second space, with a slope that lowers the installation height from the first space toward the second space. N ≧ 1 first provided A slope that increases the installation height from the first space toward the second space is continuously formed on the top of the projecting plate and the first collision plate, and the first space has a center of area. N-1 or N second collision plates are provided on the inner surface of the supply duct having three openings.

  As a result, the mist sprayed from the spray nozzle does not flow out of the space blocked from the natural wind by the air curtain generated by the air flow blown out from the outlet, but inside the space blocked by the air curtain. It evaporates and the air in the space is cooled.

  Since the supply port exists in the space blocked by the air curtain, the mixed air containing mist in the space flows into the supply duct from the supply port.

  The mixed air containing the mist flowing in from the supply duct passes through the first opening and inertially collides with the lower surface of the first collision plate, so that the mist contained in the mixed air is partially separated. Thereafter, the mixed air passes through the second opening and collides again with the lower surface of the second collision plate, and the mist contained in the mixed air is separated again. The collision described above is repeated 2N or 2N-1 times, and the mist is completely separated from the mixed air, and the air from which the mist is separated flows into the blower.

The mist that collides and separates on the lower surface of the collision plate in this way accumulates to form water droplets, travels along the lower surface of the collision plate by gravity, falls after reaching the lowermost end of the collision plate, and the upper surface of the collision plate disposed below Fall into.
Similarly, water droplets falling on the upper surface of the collision plate flow downward due to gravity and fall on the upper surface of the collision plate disposed below.

Thereafter, the water droplets finally accumulate on the upper surface of the bottom plate.
In addition, the vicinity of the upper surface of the bottom plate is contracted by the flow path formed by the first impingement plate and the bottom plate, so that the flow velocity distribution is high.

  As a result, the water accumulated on the upper surface of the bottom plate evaporates by vigorous vaporization of water at the air interface.

  The cooling device of the present invention can prevent water from accumulating on the upper surface of the collision plate for a long period of time, and can prevent the generation of bacteria during long-term operation.

FIG. 3 is a side cross-sectional view showing the configuration of the cooling device 10A according to the first embodiment. 1 is a front view showing a configuration of a cooling device 10A according to Embodiment 1. FIG. FIG. 3 is a front sectional view showing a configuration of a cooling device 10A according to the first embodiment. The figure which shows the conventional steam-water separator described in patent document 1

  The first invention includes a plurality of supply ports through which air flows, a supply duct that supplies air flowing in from the supply ports to a blowout duct, a blowout port that is provided in the blowout duct and through which air flows out, and the supply duct Alternatively, the supply duct includes: a blower disposed in the blowout duct; and a spray nozzle that is provided in the blowout duct and sprays mist toward a space that blocks natural wind by an airflow blown from the blowout outlet. The supply duct is divided in the vertical direction through a bottom plate installed horizontally on the inner surface, a first opening provided in the bottom plate, and an area center of a cross section formed when the supply duct is divided horizontally. And a first space that includes the boundary surface and the area center of the first opening, and is configured by the boundary surface and the inner surface of the supply duct, and the first space is removed from the supply duct. A second space formed on the bottom plate, and an inclined surface having a lower installation height from the first space toward the second space. A first collision plate having N ≧ 1 provided on the inner surface of the supply duct, and a second opening having an area center in the upper surface of the first collision plate from the first space to the second N-1 or N pieces are provided on the inner surface of the supply duct having a third opening having a center of area in the first space, and continuously forming a slope that increases the installation height toward the space. The second collision plate is provided.

  According to the said structure, the mist sprayed from the spray nozzle was interrupted | blocked by the air curtain by the air curtain which the airflow which blown off from the blower outlet produced | generated without flowing out from the space blocked | interrupted from natural wind. It evaporates inside the space, and the air in the space is cooled.

  Since the supply port exists in the space blocked by the air curtain, the mixed air containing mist in the space flows into the supply duct from the supply port.

  The mixed air containing the mist flowing in from the supply duct passes through the first opening and inertially collides with the lower surface of the first collision plate, so that the mist contained in the mixed air is partially separated. Thereafter, the mixed air passes through the second opening and collides again with the lower surface of the second collision plate, and the mist contained in the mixed air is separated again. The collision described above is repeated 2N or 2N-1 times, and the mist is completely separated from the mixed air, and the air from which the mist is separated flows into the blower.

The mist that collides and separates on the lower surface of the collision plate in this way accumulates to form water droplets, travels along the lower surface of the collision plate by gravity, falls after reaching the lowermost end of the collision plate, and the upper surface of the collision plate disposed below Fall into.
Similarly, water droplets falling on the upper surface of the collision plate flow downward due to gravity and fall on the upper surface of the collision plate disposed below.

Thereafter, the water droplets finally accumulate on the upper surface of the bottom plate.
In addition, the vicinity of the upper surface of the bottom plate is contracted by the flow path formed by the first impingement plate and the bottom plate, so that the flow velocity distribution is high.

  As a result, the water accumulated on the upper surface of the bottom plate evaporates by vigorous vaporization of water at the air interface.

  Therefore, it is possible to prevent water from accumulating on the upper surface of the collision plate and to prevent generation of bacteria during long-term operation.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the present embodiment.

(Embodiment 1)
1 to 3 are diagrams showing a configuration of a cooling device 10A according to the first embodiment. FIG. 1 is a side sectional view of the cooling device 10A. FIG. 2 is a front view of the cooling device 10A. FIG. 3 is a front sectional view of the cooling device 10A.

  1 to 3, the cooling device 10 </ b> A includes a plurality of supply ports 20 through which air flows, a supply duct 22 that supplies the air flowing in from the supply ports 20 to the blowing duct 23, and the air provided in the blowing duct 23. The air outlet 24 that flows out, the blower 30 disposed in the supply duct 22 or the air outlet duct 23, and the air outlet blown out from the air outlet 24 are provided in the outlet duct 23, and the mist is directed toward a space that blocks natural wind. A cross-section formed when the supply duct 22 is divided horizontally, a bottom plate 40 provided horizontally on the inner surface of the supply duct 22, a first opening 41 provided in the bottom plate 40, and a spray nozzle 26 that jets out. The boundary surface 46 that divides the supply duct 22 in the vertical direction and includes the area center of the first opening 41, and includes the boundary surface 46 and the inner surface of the supply duct 22. The first space 47 formed, the second space 48 formed when the first space 47 is removed from the supply duct 22, and the first space 47 to the second space 48 at the top of the bottom plate 40. A first slope provided with N ≧ 1 on the inner surface of the supply duct 22 having a second opening 43 having a central area in the second space 48, continuously forming a slope with a lower installation height. In the upper part of the first collision plate 42 and the first collision plate 42, an inclined surface is formed so that the installation height increases from the first space 47 toward the second space 48. 47 is provided with N-1 or N second collision plates 44 on the inner surface of the supply duct 22 having a third opening 45 having an area center.

  According to the said structure, the mist sprayed from the spray nozzle 26 is interrupted | blocked by an air curtain, without flowing out from the space blocked | interrupted from the natural wind by the air curtain which the airflow which blown off from the blower outlet 24 produces | generates. The inside of the space is evaporated and the air in the space is cooled.

  Since the supply port 20 exists in the space blocked by the air curtain, the mixed air containing mist in the space flows into the supply duct 22 from the supply port 20.

  The mixed air containing mist flowing in from the supply duct 22 passes through the first opening 41 and inertially collides with the lower surface of the first collision plate 42, and the mist contained in the mixed air is partially separated. Thereafter, the mixed air passes through the second opening 43 and collides with the lower surface of the second collision plate 44 again, and the mist contained in the mixed air is separated again. The collision described above is repeated 2N or 2N-1 times, and the mist is completely separated from the mixed air, and the air from which the mist is separated flows into the blower 30.

The mist that collides and separates on the lower surface of the collision plate in this way accumulates to form water droplets, travels along the lower surface of the collision plate by gravity, falls after reaching the lowermost end of the collision plate, and the upper surface of the collision plate disposed below Fall into.
Similarly, water droplets falling on the upper surface of the collision plate flow downward due to gravity and fall on the upper surface of the collision plate disposed below.

Thereafter, the water droplets finally accumulate on the upper surface of the bottom plate 40.
Further, since the vicinity of the upper surface of the bottom plate 40 is contracted by the flow path formed by the first collision plate 42 and the bottom plate 40, the flow velocity distribution is high.

  As a result, the water accumulated on the upper surface of the bottom plate 40 is vaporized and evaporated at the air interface.

  Therefore, it is possible to prevent water from accumulating on the upper surface of the collision plate and to prevent generation of bacteria during long-term operation.

  In addition, the inflow vertical direction angle in the opening part of the supply port 20 can be set freely. For example, as shown in FIG. 1, by opening the supply port 20 in the horizontal direction, rainwater can be prevented from entering from the supply port 20 during rainy weather.

  In addition, although the cross-sectional shape of the blower outlet 24 is a rectangle, circular, an ellipse, and a polygon may be sufficient. A plurality of them may be provided. Thereby, the shape of the air curtain formed by the airflow from the air outlet can be changed, and an optimal cooling space for the environment can be formed.

  A plurality of spray nozzles provided on the lower surface of the blowout duct 23 may be provided. Accordingly, the mist can be dispersed over a wide range, and the uneven temperature distribution in the cooling space formed by the outlet 24 can be eliminated.

  The supply port 20 is preferably larger than the opening area of the air outlet 24. Thereby, the pressure loss which arises in the supply port 20 can be reduced, and reduction of the air volume from the blower outlet 24 can be prevented.

  Each of the above-described embodiments is merely an example of the implementation of the present invention, and the technical scope of the present invention should not be construed as being limited thereto. That is, the present invention can be implemented in various forms without departing from the gist or the main features thereof.

  The present invention is suitable for use in a cooling device that cools the outdoor and semi-outdoor spaces by ejecting mist into the outdoor and semi-outdoor spaces.

10A Cooling device 20 Supply port 22 Supply duct 23 Blowout duct 24 Blowout port 26 Spray nozzle 30 Blower 40 Bottom plate 41 First opening 42 First collision plate 43 Second opening 44 Second collision plate 45 Third opening 46 Interface 47 First space 48 Second space

Claims (1)

A plurality of supply ports through which air flows;
A supply duct for supplying air flowing in from the supply port to a blowout duct;
An outlet provided in the outlet duct through which air flows out;
A blower disposed in the supply duct or the outlet duct;
A spray nozzle that is provided in the blowout duct and sprays mist toward a space that blocks natural wind by an airflow blown out from the blowout port,
A bottom plate installed horizontally on the inner surface of the supply duct;
A first opening provided in the bottom plate;
A boundary surface passing through the center of the area of the cross section formed when the supply duct is divided horizontally, and dividing the supply duct in the vertical direction;
A first space including the center of the area of the first opening and configured by the boundary surface and the inner surface of the supply duct;
A second space formed when the first space is removed from the supply duct;
A slope that lowers the installation height from the first space toward the second space is continuously formed on the top of the bottom plate, and a second opening having an area center in the second space is formed. A first collision plate provided with N ≧ 1 on the inner surface of the supply duct;
A slope having a height increasing from the first space toward the second space is continuously formed on the upper part of the first collision plate, and the first space has a center of area. N-1 or N second collision plates provided on the inner surface of the supply duct having three openings;
The cooling device characterized by providing.