JP2010071632A - Humidifying device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a humidifying device of low maintenance costs, capable of being used in an air conditioning device and saving space. <P>SOLUTION: This humidifying device includes a spray nozzle 50 for spraying water droplets into a ventilation flue 20 in which the air is circulated, and a mist catcher 60 disposed in the spraying direction of the spray nozzle 50. The mist catcher 60 has a collecting section 70 and a barrier section 80, and is fixed to the spray nozzle 50 by a height adjusting section 110 and a distance adjusting section 120. The barrier section 80 has a barrier member 85 with which the water droplets collide, and the barrier member 85 has a gauge diameter as a diameter of passable water particles, decided by material property. The barrier member 85 produces the reflected mist R composed of water particles collided with the barrier member 85 and scattered, and the permeating mist P passing through the barrier member 85 and composed of water particles smaller than the gauge diameter by spray S injected from the spray nozzle 50. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a humidifier used in an air conditioner, and more particularly to an apparatus that can be installed at low cost and can be easily adjusted.

  When humidifying an air stream sent by an air conditioner, a method of spraying water droplets on the air stream, a method of adding water vapor, or the like is employed.

  As a method of spraying water droplets on the air flow, a method using a so-called high-pressure spray nozzle or a two-fluid nozzle, an ultrasonic method that humidifies the air flow by generating mist-like water droplets from the water surface using an ultrasonic vibrator Etc. are known (see, for example, Patent Document 1).

  The high-pressure spray nozzle sprays water droplets at a high pressure in a ventilation path through which air to be air-conditioned flows inside the air conditioner. Since water droplets sprayed over an appropriate distance (evaporation distance) are scattered and easily evaporated, the air flow in the ventilation path is humidified. Water droplets that remain liquid are captured by an eliminator (removal device) provided in the spraying direction and removed from the air flow.

  The two-fluid nozzle has a spray water passage in the center and a high-pressure air passage having a ring-shaped cross section covering the peripheral side. Water droplets sprayed from the spray water passage are crushed by high-pressure air ejected from the high-pressure air passage, and sprayed as water particles with a very small diameter in the ventilation path inside the air conditioner. Since water droplets sprayed as water particles having a very small diameter are very easy to evaporate, the air flow in the ventilation path is humidified.

In the method of adding water vapor, the water vapor is generated by heating or pressurizing the water, and the water vapor is added to the air flow in the ventilation path inside the air conditioner. Thereby, an air flow can be humidified.
JP-A-5-3778

  However, the above three methods have the following problems. That is, in the method using a high-pressure spray nozzle, the diameter of the water particles is larger than in the method of adding steam and the method of using a two-fluid nozzle, so that water particles that do not evaporate increase. In order to capture water particles having such a large diameter, it is necessary to provide an eliminator over the entire cross-sectional direction of the ventilation path. If an eliminator is provided in the entire cross-sectional direction of the ventilation path, there is a possibility that the smooth flow of the airflow passing through the ventilation path may be hindered.

  In addition, it is necessary to provide an evaporation distance in the flow direction of the ventilation path, and when using a plurality of nozzles, it is necessary to increase the distance between the nozzles so that water droplets sprayed from each nozzle do not interfere with each other. . For this reason, a large space is required.

  In the method using the two-fluid type nozzle, it is necessary to provide an air compressor for producing high-pressure air, and thus a space for that is required. In addition, detailed inspection and maintenance are required, and the burden of maintenance costs is greater than the method using a high-pressure spray nozzle.

  In the method of adding water vapor, it is necessary to provide an apparatus for generating vapor. A device for generating steam is generally large and requires a large space. In addition, detailed inspection and maintenance are required, and the burden of maintenance costs is greater than other methods.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a humidifier that can be installed at low cost, can be easily adjusted for humidity, and is space-saving and inexpensive to maintain.

  In order to solve the above problems and achieve the object, the humidifier of the present invention is configured as follows.

  A humidifier provided in an air conditioner, comprising: a spray nozzle that sprays water droplets in a ventilation path through which air flows; and an obstacle member that is provided in a spraying direction of the spray nozzle and collides with the water droplets. It is characterized by that.

  According to the present invention, it can be installed at a low cost, the humidification can be easily adjusted, and the maintenance cost can be reduced in a small space.

  FIG. 1 is a top view showing a configuration of an air conditioner 10 incorporating a humidifier 40 according to an embodiment of the present invention, FIG. 2 is a side view showing a spray nozzle 50 and a mist catcher 60 in the humidifier 40, and FIG. FIG. 4 is an exploded front view showing the mist catcher 60, and FIG. 4 is a block diagram showing the configuration of the humidifying device 40.

  The air conditioner 10 includes a ventilation path 20 through which air to be air-conditioned inside the air conditioning apparatus 10 flows, a blower 30 provided on the outlet side of the ventilation path 20, and a humidifier provided on the upstream side of the blower 30. 40.

  In the ventilation path 20, the air flow flows in the direction of arrow A in FIG. 1, is humidified by the humidifier 40, and flows out of the blower port 21 in the direction of arrow B in FIG. 1 by the blower 30. In addition, 22 in FIG. 1 has shown the heat exchanger.

  The humidifier 40 includes a plurality of spray nozzles 50 and a plurality of mist catchers 60 arranged in the ventilation path 20, a water supply pipe 90 for supplying water to the spray nozzle 50, and a water passage 20 for water captured by the mist catcher 60. A drainage pipe 100 for discharging to the outside, a plurality of height adjusting units 110 and distance adjusting units 120 interposed between the spray nozzle 50 and the mist catcher 60, and a water supply device 130 for supplying water to the water supply pipe 90 are provided. Yes.

  As shown in FIG. 4, the water supply device 130 includes a tank 131 that stores water, a first pump 132 and a second pump 133 that supply water from the tank 131 to the water supply pipe 90, and impurities of the supplied water. A filter 134 for removing water, an accumulator 135, a water supply valve 136 for supplying water from the water supply to the tank 131, a regulator 137 for controlling the supply pressure of water, and a safety relief valve 138 connected to the accumulator 135. Yes. A drain pipe 100 is connected to the tank 131.

  The spray nozzle 50 is fixed to the outer periphery of the water supply pipe 90 and is connected to the water supply pipe 90. As shown in FIG. 2, the spray nozzle 50 includes a nozzle part 51 and a pipe part 52 that supplies water from the water supply pipe 90 to the nozzle part 51. The spray nozzle 50 is a high-pressure spray nozzle, and sprays water supplied from the water supply pipe 90 radially at a high pressure.

  As shown in FIG. 2, the mist catcher 60 is fixed to the spray nozzle 50 by a height adjustment unit 110 and a distance adjustment unit 120. The mist catcher 60 has a collection unit 70, an obstruction unit 80, and a pair of nuts 61 that fix the collection unit 70 and the obstruction unit 80, and is provided in the spray direction of the spray nozzle 50.

  The collection unit 70 is provided on the bottom surface of the collection pot 71, a collection pot 71 having an opening 74 opened upward, a support groove 72 that is a pair of grooves provided at the upper edge of the collection pot 71. A drainage tube 73 extending from the formed hole and connected to the drainage pipe 100. The drain tube 73 is a flexible tube, and is formed of, for example, rubber.

  As shown in FIG. 3, the obstacle portion 80 includes a frame 81 having an opening 82, a pair of support shafts 86 extending from the lower end of the frame 81 in the side surface direction, and two protrusions protruding in the vertical direction of the frame 81 from the side surface of the frame 81. A pair of fixtures 83, a plate-like receiving portion 87 projecting in the same direction as the fixture 83, a reinforcing member 84 provided so as to intersect the opening 82, and an obstacle member 85 attached to the frame 81 (FIG. 3) (Not shown).

  The obstruction member 85 is a rectangular parallelepiped member that is formed of a material such as a net of chemical fibers, for example, and is capable of reflecting or passing a liquid. The obstruction member 85 allows only liquid particles having a diameter smaller than the reference diameter to pass when the liquid collides. The reference diameter is a diameter determined by the material of the obstacle member 85 and is a diameter of water particles that can pass through the obstacle member 85. For example, if the mesh is coarse, the reference diameter is large, and if the mesh is fine, the reference diameter is small.

  The frame 81 supports a peripheral portion of one surface that is in contact with the obstacle member 85. Since the frame 81 has the opening 82, the liquid passing through the obstacle member 85 can be passed through as it is. The reinforcing member 84 provided in the opening 82 has a shape in which thin plates intersect, and supports the obstacle member 85 together with the frame 81. The receiving portion 87 protrudes from the lower end of the frame 81 in the same direction as the fixture 83 and supports the lower end of the obstacle member 85.

  Two pairs of fixtures 83 attached to the side surface of the frame 81 fix the obstacle member 85 sandwiched from the left and right. The distance between the fixtures 83 facing each other is smaller than the length of the obstacle member 85 in the width direction. The obstacle member 85 is elastic because it is formed of a chemical fiber net or the like. When the fixture 83 sandwiches the obstacle member 85, the obstacle member 85 is fixed to the fixture 83 by elasticity.

  The support shaft 86 is a shaft having a size that can be fitted into the support groove 72 of the collection unit 70, and a male screw that is screwed into the nut 61 is cut off. The obstacle 80 is fixed to the recovery unit 70 by fitting the support shaft 86 into the support groove 72 of the recovery unit 70 and screwing the nut 61 into the support shaft 86.

  The height adjusting unit 110 is attached to the outer peripheral portion of the tube portion 52. The height adjustment unit 110 is a ring-shaped member that covers the outer periphery of the pipe part 52 and is movable in the vertical direction with respect to the pipe part 52. The height adjusting unit 110 is fixed at an arbitrary position of the pipe unit 52 by a detachable fixing means such as a bolt and a nut (not shown).

  The distance adjustment unit 120 is attached between the collection pot 71 and the height adjustment unit 110. The distance adjusting unit 120 includes a first rail 121 having one end fixed to the collection pot 71 and a second rail 122 having one end fixed to the height adjusting unit 110. The first rail 121 and the second rail 122 are fitted together so as to be relatively slidable, and are fixed at arbitrary positions by a fixing means (not shown).

  Operation | movement of the humidification apparatus 40 integrated in the air conditioner 10 comprised in this way is demonstrated.

  The water supplied from the water supply valve 136 to the tank 131 is sent out by the first pump 132. Impurities are removed from the water flowing out by the first pump 132 by the filter 134, and the water is sent out by the second pump 133. The water sent out by the second pump 133 is adjusted in supply pressure by the regulator 137 and supplied to the water supply pipe 90.

  Water is supplied to the plurality of spray nozzles 50 from the water supply pipe 90. The spray nozzle 50 sprays the water supplied from the water supply pipe 90 through the pipe part 52 radially from the nozzle part 51 at a high pressure.

  The spray S which is a water droplet ejected from the nozzle 51 collides with the obstacle member 85 of the mist catcher 60. Of the spray S colliding with the obstruction member 85, some water particles are reflected from the obstruction member 85, and other water particles smaller than the reference diameter pass through the obstruction member 85, and water particles larger than the reference diameter are obstruction members. 85.

  The permeated mist P, which is water particles that have passed through the obstruction member 85, is mixed into the air flow that flows through the ventilation path 20. The permeating mist P is fine water particles and thus is more easily evaporated than the spray S just sprayed. Therefore, the permeated mist P mixed in the air flow in the ventilation path 20 evaporates and humidifies the air flow.

  The water particles reflected from the obstacle member 85 are scattered and divided into fine water particles by colliding with the obstacle member 85 and reflecting. The reflected mist R, which is the scattered water particles, is mixed into the air flow flowing through the ventilation path 20. Since the reflective mist R is fine water particles, it is easier to evaporate than the spray S just sprayed. Therefore, the reflective mist R mixed in the air flow in the ventilation path 20 evaporates and humidifies the air flow.

  The water droplets captured by the obstruction member 85 drop from the obstruction member 85 into the collection pot 71. The water dripped into the collection pot 71 passes through the drain tube 73 and is discharged from the drain pipe 100. The water discharged from the drainage pipe 100 is supplied to the tank 131 and reused.

  The inclination angle of the obstacle 80 is adjusted as follows. By loosening the nut 61 that fixes the obstacle 80, the obstacle 80 rotates about the support shaft 86. When the obstacle part 80 is set to a desired inclination angle and the nut 61 is tightened again, the obstacle part 80 can be fixed to the collecting part 70 at a desired inclination angle.

  Adjustment of the relative height of the spray nozzle 50 and the mist catcher 60 is performed as follows. By loosening a fixing means (not shown) that fixes the height adjusting unit 110, the height adjusting unit 110 can move up and down with respect to the pipe unit 52. If the height adjustment unit 110 is fixed in a state where it is moved to a desired position, the height adjustment unit 110 can be fixed at the desired position. Thereby, the relative height of the mist catcher 60 with respect to the spray nozzle 50 is adjusted.

  The distance between the spray nozzle 50 and the mist catcher 60 is adjusted as follows. By loosening a fixing means (not shown) for fixing the first rail 121 and the second rail 122 of the distance adjusting unit 120, the first rail 121 and the second rail 122 can be slid relative to each other. The first rail 121 and the second rail 122 are slid to adjust the distance between the spray nozzle 50 and the mist catcher 60 to a desired length. When the first rail 121 and the second rail 122 are fixed in a state where the distance between the spray nozzle 50 and the mist catcher 60 is adjusted to a desired length, the spray nozzle 50 and the mist catcher 60 are fixed at a desired distance. Can do. As a result, the distance between the mist catcher 60 and the spray nozzle 50 is adjusted.

  Next, the effect of the humidifier 40 will be described. The obstacle member 85 reflects and scatters some of the water particles in the spray S that collide, and allows small-diameter water particles that are less than the reference diameter specific to the material of the obstacle member 85 to pass through. That is, the spray S that collides with the obstacle member 85 generates a fine reflection mist R and a transmission mist P of water particles. Since the reflection mist R and the transmission mist P have fine water particles, they are easier to evaporate than the spray S.

  In this way, when the obstacle member 85 generates the reflective mist R and the transmission mist P with fine water particles, the humidifying device 40 is based on a humidifying method using a high-pressure spray nozzle that only sprays water droplets at a high pressure in the air flow. Also has excellent humidifying ability.

  5 and 6 are diagrams illustrating an example of a water particle crushing effect by the obstacle member 85. FIG. In FIG. 5, G1 is the particle size distribution of the spray S when the spray S is not applied to the obstacle member 85, G2 is the particle size distribution of the reflected mist R when it is applied to the obstacle member 85 at a distance of 40 mm, and G3 is 120 mm. This is a grain system distribution of the reflected mist R when it is applied to the obstruction member 85.

  As can be seen from this graph, by reflecting the obstacle member 85, the average particle size can be reduced, the proportion of water particles having a particle size of 20 μm or less can be increased, and the proportion of water particles having a particle size of 20 μm or more can be reduced.

  In FIG. 6, Q1 is the particle size distribution of the spray S when the spray S is not applied to the obstacle member 85, Q2 is the particle size distribution of the transmission mist P when it is applied to the obstacle member 85 at a distance of 40 mm, and G3 is the distance. It is a grain system distribution of the permeation mist P when it is applied to the obstruction member 85 at 90 mm.

  As can be seen from this graph, water particles having a particle diameter of 10 μm or more can be substantially eliminated by allowing the obstacle member 85 to pass therethrough.

  Characteristics such as the size of the reference diameter and the generation amount of small-diameter water particles vary depending on the material of the obstacle member 85 that causes the spray S to collide and the inclination angle / distance / height with respect to the spray nozzle 50.

  The mist catcher 60 of the humidifying device 40 can easily change the material of the obstruction member 85, and the obstruction member is easily formed by the support shaft 86 and the nut 61, the height adjustment unit 110, and the distance adjustment unit 120. It is also possible to change the inclination angle / distance / height for the 85 spray nozzles 50. Thereby, according to the humidification characteristic calculated | required, the generation amount of a reference | standard diameter, a small diameter water particle, etc. can be changed.

  In addition, the humidification method using a high-pressure spray type nozzle requires an evaporation distance for evaporating the sprayed water droplets and a distance for preventing the water droplets sprayed by a plurality of nozzles from interfering with each other, and requires a large space. However, since the humidifier 40 collides the spray S with the obstacle member 85 at a distance shorter than the evaporation distance, it can be provided in a narrow space. In addition, the wide-area eliminator used in the humidification method using a high-pressure spray nozzle is not required, and the humidifier 40 is simply provided with a mist catcher 60 in front of the spray nozzle 50, so that smooth air flow is impeded. Therefore, it can flow smoothly.

  Further, the humidifier 40 returns the water collected in the collection pot 71 to the tank 131 through the drain pipe 100 for reuse. Further, there is no need for a special device having a large maintenance cost such as an air compressor or a device for generating steam. For this reason, the humidifier 40 can be used at a low maintenance cost.

  In addition, this invention is not limited to the said embodiment. For example, in the above-described embodiment, the mist catcher is provided with an adjusting means that can change the tilt angle, height, and distance. However, the mist catcher is fixed to the drain pipe and the drain pipes are moved to move the tilt angles of the plurality of mist catchers. -Height and distance may be adjusted at the same time. Further, the obstruction member 85 is not limited to a rectangular parallelepiped, and may be other shapes such as a circle, an ellipse, and a rhombus. Of course, various modifications can be made without departing from the scope of the present invention.

The top view which shows the structure of the air conditioning apparatus with which the humidification apparatus which concerns on one Embodiment of this invention was integrated. The side view which shows the spray nozzle and mist catcher in the humidification apparatus. The front view which decomposes | disassembles and shows the mist catcher. The block diagram which shows the structure of the humidification apparatus. The figure which shows an example of the crushing effect of the water particle by the obstruction member provided in the mist catcher. The figure which shows an example of the crushing effect of the water particle by the obstruction member.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Air conditioner, 20 ... Ventilation path, 40 ... Humidifier, 50 ... Spray nozzle, 60 ... Mist catcher, 85 ... Obstacle member.

Claims (8)

A humidifier provided in an air conditioner,
A spray nozzle that sprays water droplets in a ventilation path through which air flows;
An obstacle member provided in the spraying direction of the spray nozzle and colliding with the water droplet;
A humidifying device comprising:   The obstructing member captures large-diameter water particles having a diameter larger than a reference diameter among the collided water droplets, and allows small-diameter water particles having a diameter smaller than the reference diameter to pass through and mix into the air flow in the ventilation path. The humidifying device according to claim 1.   The obstructing member reflects and scatters a part of the collided water droplets, thereby generating small-diameter water particles having a diameter smaller than a reference diameter and mixing them into the air flow in the ventilation path. 2. A humidifier according to 2.   The humidifying device according to claim 3, wherein the obstacle member is a porous member having a gap smaller than the diameter of the large water particles.   The humidifying device according to claim 1, wherein the obstacle member is rotatable about a support shaft and is fixed at an arbitrary inclination angle with respect to the spray nozzle.   The humidifier according to claim 1, wherein the obstacle member is movable relative to the spray nozzle. A recovery pot provided below the obstruction member and having an opening for receiving the large-diameter water particles captured by the obstruction member;
A drain pipe connected to the recovery pot for discharging the water received by the recovery pot;
The humidifying device according to claim 6, comprising: A water supply pipe connected to the spray nozzle to supply water to the spray nozzle;
A water supply device for supplying water to the water supply pipe;
Have
The humidifying device according to claim 7, wherein water collected by the collection pot and discharged from the drain pipe is supplied to the water supply pipe by the water supply apparatus.

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