JP5995337B1 - Humidification unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a humidifying unit which can be installed in a narrow space and can perform steam humidification. A humidifying chamber box 1 that mixes air-conditioning air and steam and a mixing mechanism 2 that generates two swirling flows F and G by the air-conditioning air and mixes them with steam are provided. The mixing mechanism 2 branches the air-conditioning air into the first divided air A, the second divided air B, and the third divided air C, and generates the first swirling flow F in the first divided air A; The first guide part 4 that causes the third divided air C to flow toward the first divided air A that has flowed to the downstream area of the first swirling flow F, and the third divided air that has flowed to the downstream area of the first swirling flow F. And a second guide part 5 for generating a second swirling flow G by flowing the second divided air B so as to pass the C. [Selection] Figure 4

Description

  The present invention relates to a humidifying unit used by connecting to an air conditioner or duct installed in a ceiling in an air conditioner of an office or a hotel.

  When humidifying the air-conditioning air using steam, a long humidification space is required because the evaporation absorption distance until the steam is absorbed by the air-conditioning air is long.

JP 2004-245538 A

  Therefore, it is difficult to perform steam humidification only with a small air conditioner such as a fan coil unit used in a narrow space in the ceiling.

  In order to solve the above-described problems, the present invention provides a chamber box for humidifying the air-conditioning air by mixing air-conditioning air and steam therein, and for the air-conditioning while wrapping the steam in the air-conditioning air. And a mixing mechanism provided in the humidification chamber box so that two swirling flows are generated by air and mixed with the steam.

According to the first aspect of the present invention, since two swirl flows are generated in the air-conditioning air and mixed with the steam while wrapping the steam in the air-conditioning air, the absorption of the vapor into the air-conditioning air is promoted and the unit time The amount of vapor absorption per hit increases. Therefore, the evaporation absorption distance is shortened, so that the humidification space can be reduced and the humidification chamber box can be downsized. Further, since the steam is wrapped in air for air conditioning and is not brought into direct contact with the inner surface of the humidifying chamber box, condensation and dew condensation do not occur, and heat insulation of the humidifying chamber box is not necessary, thereby reducing costs. If the humidification unit of the present invention is installed in the ceiling of a narrow space such as an office or a hotel and is connected directly to a small air conditioner such as a fan coil unit or via a duct, steam humidification can be performed. it can. Moreover, if an air conditioner is already installed, it can be renewed inexpensively by simply adding a humidifying unit. In addition, there is no risk of insufficient humidification if steam humidification is performed even when the outside air has a low temperature and humidity. By introducing the outside air directly into a small air conditioner such as a fan coil unit, air that humidifies the outside air separately. A harmony machine is no longer necessary, and costs can be reduced. The humidifying chamber box drastically attenuates the noise energy of air-conditioning air by diffusion and reflection, making it ideal for places where quietness is required, such as hotels, and providing air conditioning with excellent comfort.

According to the invention of claim 2 , the opening increases the air speed of the air-conditioning air that has passed through the opening to increase the Reynolds number, and the first swirl flow is reliably generated in the downstream area of the opening. It can be humidified by mixing air and steam for air conditioning. Moreover, since it is a simple structure in which an opening is provided in the barrier portion, it can be manufactured at a low cost.

According to the invention of claim 3 , the first airflow direction adjusting plate and the second airflow direction adjusting plate cause the second diverted air and the third diverted air to pass each other and rotate to reliably generate the second swirl flow. Thus, air for air conditioning and steam can be mixed and humidified. In addition, since it is a simple structure in which only the first air direction adjusting plate and the second air direction adjusting plate are provided, it is not necessary to complicately divide the inside of the humidifying chamber box with many members, and it can be manufactured at low cost.

According to the fourth aspect of the present invention, since the steam is released in the region where the first swirl flow is generated, the steam is efficiently and quickly absorbed into the air for air conditioning, and the effective humidification amount is increased.

According to the invention of claim 5 , since an electrode type steam generator can use a 400V electrode with a 100V power source, for example, the electrode area can be greatly reduced, and the humidifier can be downsized while maintaining the humidification capacity. . Therefore, it can be installed in a small space such as a ceiling of an office or a hotel and steam humidification can be easily performed.

According to the sixth aspect of the present invention, since only the shortage is humidified by the vaporizing humidifier with a low running cost and only the deficiency is humidified by the steam, the humidification cost is small and the humidification is performed by the steam when the air conditioning load is low. Heating and low-temperature humidification can be performed to achieve both energy saving and comfort.

  1 to 4 show an embodiment of a humidifying unit according to the present invention. This humidifying unit is used for humidification for allowing air-conditioning air to absorb moisture of the vapor by mixing the air-conditioning air and the vapor inside. The mixing mechanism 2 provided inside the chamber box 1 for humidification so that two swirl flows F and G are generated in the air-conditioning air and mixed with the steam while wrapping the steam in the air-conditioning air. And a vaporizing humidifier 16 and a steam humidifier 18. The thick dotted arrow in each figure shows the flow of air for air conditioning.

  The mixing mechanism 2 includes a branch member 3, a first guide part 4, and a second guide part 5. The branch member 3 branches the air-conditioning air into the first divided air A, the second divided air B, and the third divided air C, and generates the first swirling flow F in the first divided air A, and It is provided inside the humidifying chamber box 1 so that the 1-division air A flows while being sandwiched between the second diversion air B and the third diversion air C.

  The branch member 3 includes a barrier portion 9 and an opening 10. The air flow passage inside the humidifying chamber box 1 is constituted by the inner surface portion 7 of the humidifying chamber box 1. The outer surface portion 8 of the barrier portion 9 is provided at a distance from the inner surface portion 7 to form four gap portions 6. Air conditioning air is passed through the four gaps 6 to generate the second divided air B, the third divided air C, the fourth divided air D, and the fifth divided air E, respectively.

  The opening 10 is provided in the barrier 9 along a line extending in the horizontal direction across the airflow of the air-conditioning air. Air conditioning air is passed through the barrier portion 9 to generate the first divided air A. The opening 10 has four gaps 6 so that the first divided air A flows in a state of being surrounded by the second divided air B, the third divided air C, the fourth divided air D, and the fifth divided air E. It is provided in the barrier portion 9 at a position surrounded by.

  When the air-conditioning air passes through the opening 10, the opening 10 generates a first swirling flow F in the downstream area by contact with the edge of the opening 10. Since the air passage cross-sectional area of the opening 10 is smaller than the air passage cross-sectional area of the air flow passage inside the humidifying chamber box 1, the air speed of the air-conditioning air is increased by passing the air-conditioning air through the opening 10. Increases the Reynolds number. Therefore, a first swirling flow F such as Karman vortex or turbulent flow is generated in the downstream area of the opening 10.

  The first guide portion 4 is provided inside the humidifying chamber box 1 so that the third divided air C flows toward the first divided air A flowing out to the downstream region of the first swirling flow F. The second guide part 5 is a humidifying chamber box so that the second diverted air B flows into the second diverted air B so as to pass the third diverted air C flowing out to the downstream region of the first swirl flow F. 1 is provided inside.

  The first guide portion 4 is configured by a first wind direction adjusting plate 11 that causes the third diverted air C to contact and directs the traveling direction of the third diverted air C toward the downstream region of the first swirl flow F. The second guide portion 5 is configured by a second airflow direction adjusting plate 12 that causes the second diverted air B to come in contact and turn the traveling direction of the second diverted air B back to the direction that passes the third diverted air C. Is done.

  The first air direction adjusting plate 11 formed of a flat thin plate is provided inside the humidifying chamber box 1 along a line extending in the horizontal direction across the airflow of the air for air conditioning. The first wind direction adjusting plate 11 is disposed in the middle of the flow path of the third divided air C so as to protrude obliquely upward toward the downstream region of the first swirling flow F.

  The second air direction adjusting plate 12 formed of a flat thin plate is provided inside the humidifying chamber box 1 along a line extending in the horizontal direction across the airflow of the air for air conditioning. The second wind direction adjusting plate 12 is symmetrical with the first wind direction adjusting plate 11 with respect to the downstream region of the first swirling flow F, and protrudes obliquely downward toward the downstream region of the first swirling flow F. It arrange | positions in the middle of the flow path of the 2nd branch air B.

  The steam humidifier 18 includes a spray pipe 13 provided in the humidification chamber box 1 so as to release steam in a region where the first swirling flow F is generated, and an electrode-type steam generator that sends steam to the spray pipe 13. 14. The electrode-type steam generator 14 applies a voltage between the electrodes 17 and 17 immersed in the water inside the water container 19 to flow an electric current, and generates water by boiling water with Joule heat. The steam generator 14 includes a step-up transformer 15 that boosts the voltage between the electrodes 17 and 17. The amount of steam generated is controlled by changing the current value by increasing / decreasing the surface area of the electrode 17 in contact with water by water supply / drainage.

  The spray tube 13 has a plurality of spray holes 20 provided at a distance from each other in the axial direction of the tube. The humidifying steam is discharged obliquely upward from the spray hole 20 of the spray pipe 13 through the hose from the steam generator 14. The spray tube 13 is provided inside the barrier portion 9 along a line extending in the horizontal direction across the airflow of the air for air conditioning. The lower part of the barrier portion 9 is formed in a tray shape to receive the drain from the spray tube 13 and discharge the drain to the drain pan 27 through the hose. The vaporization type humidifier 16 is humidified on the wind of the spray tube 13, and the insufficient humidification of the vaporization type humidifier 16 is humidified by the spray tube 13 to compensate.

  The humidifying chamber box 1 is formed in a shape in which a part of the inner surface portion 7 constituting the air flow passage is expanded upward. This prevents dew condensation due to the contact between the steam to be raised and the inner surface portion 7 of the humidifying chamber box 1 and attenuates the noise energy of the air-conditioning air by diffusing and reflecting.

  The air for air conditioning is sent into the humidifying chamber box 1 from an air conditioner 23 having a heat exchanger 21 and a fan 22. The air inlet of the humidifying chamber box 1 is connected to the air blowing portion of the air conditioner 23 and is suspended from the ceiling together with the steam generator 14. A shunt chamber box 24 is connected to the air outlet of the humidifying chamber box 1.

  The heat exchanger 21 is formed by inserting a large number of heat transfer tubes 26 into a large number of heat transfer plates 25, and the heat exchange medium flowing inside the heat transfer tubes 26 and the air-conditioning air passing through the heat exchanger 21 are heat transfer tubes 26. And heat exchange is performed via the heat transfer plate 25. As the heat exchange medium, heat source water such as water or an aqueous solution, a refrigerant such as Freon, and other various media can be used. By rotating the fan 22, the air-conditioning air such as outside air or return air is passed through the heat exchanger 21 to be warm air or cold air, and the humidifying chamber box 1, the diverting chamber box 24, the room or the like through the duct, etc. Air is supplied to the air-conditioned space.

  Inside the humidifying chamber box 1, the sent air-conditioning air hits the barrier portion 9 of the branching member 3, flows out of the opening 10 and the four gap portions 6, and flows into the first divided air A and the second air. The branched air B, the third divided air C, the fourth divided air D, and the fifth divided air E are branched. As the air for air conditioning passes through the opening 10, a first swirl flow F is generated in the downstream area of the opening 10. Steam is released in a region where the first swirl F is generated, and the first swirl F is absorbed into the air-conditioning air, so that the first humidification is performed. The humidified air-conditioning air flows out to the downstream area of the first swirling flow F together with the remaining steam.

  The third divided air C reaches the first guide portion 4 and flows out to the downstream area of the first swirling flow F. The second divided air B reaches the second guide portion 5 and flows out to the downstream region of the first swirling flow F while passing the third divided air C. The second diverted air B and the third diverted air C pass each other so that rotation is applied and a second swirl flow G is generated. This second swirl flow G causes the air-conditioning air to absorb the remaining steam, and the second humidification is performed. The air for air conditioning that has been humidified a second time flows out to the air outlet of the humidifying chamber box 1. Note that the steam released from the spray pipe 13 is completely wrapped in the second air B, the third air C, the fourth air D, and the fifth air E, and is completely air-conditioned with two humidifications. Therefore, it does not contact the inner surface of the humidifying chamber box 1.

  In addition, this invention is not limited to the above-mentioned Example, As it describes below, a design change is freely possible in the range which does not deviate from the summary of this invention. Although the humidifying chamber box 1 is directly connected to the air conditioner 23, it may be connected via a duct. The steam humidifier 18 can be freely replaced with various types such as a known electric heating type in addition to the electrode type. The vaporizing humidifier 16 may be provided not inside the air conditioner 23 but inside the humidifying chamber box 1. The vaporizing humidifier 16 may be omitted and only the steam humidification by the steam humidifier 18 may be performed. Conversely, if the vapor humidifier 18 is omitted and only the vaporizing humidifier 16 is provided inside the humidifying chamber box 1, a vaporizing humidifier with high saturation efficiency (humidification capability) can be installed.

It is the figure which looked at the state which attached the humidification unit of this invention to the air conditioner from the side. It is the figure which looked at FIG. 1 from the top. It is the perspective view which looked at the chamber box for humidification from diagonally upward. It is a principal part enlarged view of the XX cross section of FIG.

DESCRIPTION OF SYMBOLS 1 Humidification chamber box 2 Mixing mechanism 3 Branch member 4 1st guide part 5 2nd guide part 6 Gap part 7 Inner surface part 8 Outer surface part 9 Barrier part 10 Opening part 11 1st wind direction adjustment board 12 2nd wind direction adjustment board 13 Spray Pipe 14 Steam generator 15 Step-up transformer 16 Vaporization type humidifier 17 Electrode A First divided air B Second divided air C Third divided air D Fourth divided air E Fifth divided air F First swirl flow G Second swirl flow

Claims (6)

A humidification chamber box (1) for mixing air conditioning air and steam inside to humidify the air conditioning air, and two swirl flows in the air conditioning air while wrapping the steam in the air conditioning air A mixing mechanism (2) provided inside the humidifying chamber box (1) so as to generate (F) and (G) and mix with the steam ;
The mixing mechanism (2) branches the air-conditioning air into a first diverted air (A), a second diverted air (B), and a third diverted air (C) and into the first diverted air (A). Toward the first diverted air (A) flowing out to the downstream region of the first swirl flow (F) and the branch member (3) provided to generate the first swirl flow (F) The first guide portion (4) provided so as to allow the third divided air (C) to flow in, and the third divided air (C) flowing out to the downstream region of the first swirling flow (F). And a second guide portion (5) provided to generate the second swirl flow (G) by flowing the second diverted air (B) into the humidification unit. The branch member (3) passes the air for air conditioning to generate the second divided air (B), the third divided air (C), the fourth divided air (D), and the fifth divided air (E), respectively. A barrier portion (9) provided at a distance from the inner surface portion (7) of the humidifying chamber box (1) so as to form two gap portions (6), and the barrier portion (9) An opening (10) provided in the barrier portion (9) so as to cause the air for air conditioning to pass therethrough and generate the first diverted air (A) and the first swirl flow (F). Humidification unit as described in. The first guide part (4) causes the third diverted air (C) to come into contact with the first guide part (4) to direct the traveling direction of the third diverted air (C) toward the downstream region of the first swirl flow (F). A second guide portion (5) is made up of a plate (11), and the second shunt air (B) is brought into contact with the second shunt air (B) so that the traveling direction of the second shunt air (B) is changed to the third shunt air (C). The humidification unit of Claim 1 or 2 comprised by the 2nd wind direction adjustment board (12) made to face in the direction which passes . The spray pipe (13) provided in the inside of the chamber box (1) for humidification so that a vapor | steam may be discharge | released in the area | region where a 1st swirl | vortex flow (F) occurs, The spray tube (13) in any one of Claim 1 to 3 provided. Humidification unit. A step-up transformer (15) provided with an electrode-type steam generator (14) for sending steam to the spray pipe (13), wherein the steam generator (14) boosts the voltage between the electrodes (17) and (17). The humidification unit of Claim 4 provided . A vaporizing humidifier (16) for humidifying on the wind of the spray pipe (13) is provided, and the insufficient humidification of the vaporizing humidifier (16) is humidified by the spray pipe (13) to make up for it. The humidification unit according to claim 4 or 5 constituted .

Images