JP2014092336A - Method for making indoor air comfortable, and air conditioning equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for making indoor air comfortable, which secures proper efficiency of making the indoor air comfortable by an agent for making air comfortable and which prevents an increase in the number of man-hours for operation and maintenance management of an ultrasonic atomizer.SOLUTION: A method makes indoor air comfortable in a building comprising air conditioning equipment controlled by a central controlling system. One ultrasonic atomizer 25 is provided in such a manner as to correspond to one air-conditioning machine body 11 of the air conditioning equipment. A material, which is obtained by making the ultrasonic atomizer 25 atomize a chemical solution containing an agent for making air comfortable, is mixed into supply air on the base part side of a supply air duct 13 to be capable of being issued from each supply opening (unit) 23 of the supply air duct 13.

Description

  The present invention relates to an indoor air comfort method and an air conditioner used for indoor air comfort. More specifically, the invention relates to an indoor air comfort method and air conditioner suitable for comforting indoor air in a room (including a hall) or a hallway in a building having a central control air conditioner. It is.

  Here, making indoor air comfortable means making the air comfortable by sterilization, deodorization, fragrance addition, and the like, and is a concept similar to purification or cleaning.

  Conventionally, in commercial facilities, amusement halls, medical institutions, accommodation facilities, etc., air sterilization, deodorization, fragrance imparting, etc. for sterilization, deodorization, fragrance imparting, etc. for comforting indoor air, etc. In order to deal with this problem, dedicated atomizers containing chemicals containing chemicals were placed in multiple locations in each room, such as when the room was large or in corridors. There are various types of atomizers. Recently, ultrasonic atomizers that have good atomization efficiency and can obtain fine atomized products (center particle diameter: about 3 μm) are widely used.

  An ultrasonic atomizer applies vibration energy generated by applying a high-frequency voltage to an ultrasonic transducer (piezoelectric transducer) to the liquid to be atomized with the liquid level adjusted, and part of the liquid surface is raised. It is an atomizer which makes it atomize.

  However, the ultrasonic atomizer in the above is usually installed at the corner of the room because of the flow of people. Therefore, the air comfort agent is difficult to disperse throughout the room (room), and the comforting efficiency by the air comfort agent is not necessarily good.

  In addition, the ultrasonic atomizers are independent one by one, and it is necessary to start and stop each atomizer, and to perform maintenance management such as chemical exchange and filter cleaning. For this reason, operation and maintenance management man-hours increased.

  Although not influencing the novelty and inventive step of the present invention, Patent Document 1 can be cited as a prior art document related to purification using an air conditioning duct in an indoor air conditioning facility. In addition, Patent Documents 2 to 5 and the like can be cited as prior art documents related to an ultrasonic atomizer having applicability in the present invention.

JP 2008-155192 A (summary etc.) JP 2010-249337 A (summary etc.) JP 2007-105714 A (summary etc.) Japanese Unexamined Patent Publication No. 2007-7543 (Summary, etc.) Japanese Patent Laid-Open No. 5-115818 (summary, etc.)

  In view of the above, the present invention provides a comfortable indoor air comfort method and air conditioning that have good comfort efficiency with an air comfort agent for indoor air and that do not require much manpower for operation and maintenance of the ultrasonic atomizer. The purpose (problem) is to provide equipment.

  In the process of diligently developing to solve the above-mentioned problems, the present inventors have used an ultrasonic atomizer and used a chemical solution containing an air comfort agent on the base side of the air supply duct of the air conditioning equipment. Based on this knowledge, the inventors have come up with an indoor air comfort method (1) and an air conditioner (2) having the following configuration.

  (1) A method for comforting indoor air in a building equipped with a centrally controlled air conditioning system, comprising one ultrasonic atomizer corresponding to one air conditioner body in the air conditioning system. The atomized product obtained by the ultrasonic atomizing device for the chemical liquid containing the air comfort agent is mixed with the supply air at the base side of the supply duct, and can be discharged from each outlet of the supply duct. A method of comforting indoor air.

  (2) A centrally controlled air conditioning facility used for comfort of indoor air in a building, comprising one ultrasonic atomizer corresponding to one air conditioner body in the air conditioning facility, By using an ultrasonic atomizer, an atomized product of a chemical solution containing an air comfort agent is mixed with the supply air on the base side of the supply duct, and can be discharged from each outlet of the supply duct. , Which is characterized by air conditioning.

  The indoor air comfort method and the air conditioning equipment of the present invention require only one ultrasonic atomizing device corresponding to one air conditioner main body according to the above configuration (invention specific matter), and the central control method. As a result, the atomized product of each medicine is sprayed from each outlet (usually the ceiling) of the air conditioning equipment. For this reason, the dispersibility of the atomized product is good, the comforting efficiency can be improved, and as a result, the amount of medicine used can be reduced.

  Furthermore, sterilization and deodorization in the air supply duct can be performed simultaneously, and a synergistic effect of air comfort can be expected.

It is a schematic perspective view which shows an example of the air conditioning equipment of the central control system in the game hall to which this invention is applied. It is the schematic which shows the air flow between the air-conditioner main body in FIG. 1, an air supply discharge port, and an ultrasonic atomizer. It is a schematic front sectional drawing of the ultrasonic atomizer used by this invention. It is a schematic side sectional view. It is a schematic plane sectional view similarly. It is an example of the control flowchart in the indoor air comfort method of this invention.

  Hereinafter, an embodiment of the present invention will be described by taking as an example a case where it is applied to an existing central control type air conditioning facility in a game hall H as shown in FIGS. Of course, the present invention can also be applied to newly installed air conditioning equipment.

  The air conditioning equipment includes an air conditioner body 11 and an air supply duct 13 connected to a discharge port 11a for air supply (air conditioning air) of the air conditioner body 11.

  Outside air and ventilation are introduced into the air conditioner main body 11 via the junction box 15 and the electric dust collector 17. Ventilation is introduced into the junction box 15 through the ventilation duct 19 from the indoor central ventilation port 19a. The heat exchange burden is reduced by introducing into the air conditioner body 11 ventilation that has been air-conditioned (cooled or heated) indoors. An exhaust duct 21 is connected in the middle of the ventilation duct 19 so that a part of the ventilation is exhausted outside the room.

  The air supply duct 13 includes a blow-out port (blow-out unit) 23 at the end of the branch pipe 13b from the central pipe 13a on the ceiling side through the three pairs of branch pipes 13b.

  Each air outlet 23 blows out air supplied from the air supply duct 13, and the amount of air supplied (outlet amount) can be adjusted by opening and closing a damper (not shown). The air supply amount may be adjusted by adjusting the air volume of the air conditioner body 11. In the case of a guest room such as a hotel, a fan that can adjust the air supply amount may be attached to the outlet 23.

  In this embodiment, one ultrasonic atomizing device 25 is prepared in correspondence with one air conditioner main body 11.

  If the ultrasonic atomizer 25 can atomize a chemical | medical solution, the type will not be specifically limited, The thing of the said patent documents 2-5 can also be used, changing suitably.

  3-5 shows an example of the ultrasonic atomizer 25 suitable for the present invention.

  The ultrasonic atomizer 25 includes a liquid storage chamber 27, a chemical liquid bottle holding chamber 29, and a chemical liquid supply means 31.

  The liquid storage chamber 27 is partitioned by a partition wall 33 with a gap (communication hole) 33a on the lower side, one being an atomizing portion 35 and the other being a float switch installing portion (FS installing portion) 37. Further, a horizontal slot 33 b is provided on the upper side of the partition wall 33.

  The atomizing unit 35 is provided with an ultrasonic transducer (piezoelectric transducer unit) 39 at the bottom.

  An FS 47 is disposed inside the bottom of the FS installation portion 37, and an air supply introduction box 42 in which the blower 41 is disposed is formed on the upper side of the ceiling. A supply air distribution hose 49 is connected to the supply air introduction box 42.

  The chemical liquid bottle holding chamber 29 includes a bottle holder 53 to which the chemical liquid bottle 51 can be attached and detached. If the chemical liquid bottle holding chamber 29 can hold the two chemical liquid bottles 51 and is switched automatically or manually, the chemical liquid supply can be continued.

  The chemical solution replenishing means 31 is connected to a discharge side hose 56 and a suction side hose 57 on the upper side and the lower side with a liquid feed pump 55 attached inside the side wall of the housing C interposed therebetween. The discharge side hose 56 is connected to the chemical solution inlet 35 b of the atomizing unit 35.

  The suction side hose 57 is transparent in order to detect the presence or absence of the chemical flow by the liquid flow sensor 59. The liquid flow sensor 59 is disposed below the liquid feed pump 55.

  In the figure, reference numeral 60 denotes a drain hose for discharging the chemical solution from the liquid storage chamber 27 during maintenance. Usually, the drain hose 60 is set upward and is set downward when the chemical solution is discharged. Reference numeral 63 denotes a cooling fan for cooling the ultrasonic vibrator 39 and the accessory device (electronic device) disposed below the liquid storage chamber 27.

  And the atomization thing delivery hole 35a of the atomization part 35 of this ultrasonic atomizer 25 is on the base part side of the air supply duct 13 of the air conditioner main body 11 via the atomization substance conveyance hose 43 as shown in FIG. The spray pipe 44 is connected. The spray outlet 44 a of the spray pipe 44 faces the supply air flow direction at the axial center position of the supply air duct 13.

  Moreover, although not necessarily, in this embodiment, the ultrasonic atomizer 25 starts and stops in conjunction with the start and stop of the air conditioning equipment.

  Next, the usage mode of the above embodiment will be described (see the flowchart of FIG. 6).

  First, the chemical bottle 51 filled with the chemical solution is set in the chemical bottle holding chamber 29, the liquid feed pump 55 is started, and the liquid storage chamber 27 is filled with a predetermined amount of chemical solution in advance.

  Here, the chemical solution is not particularly limited as long as it can provide one or more effects of sterilization, deodorization, and aroma imparting. For example, a commercially available antibacterial metal or an antibacterial agent having antiviral properties obtained by mixing an alkali metal salt and a titanate coupling agent can be used (see JP 2011-42642 A). These disinfectant liquids (antibacterial agents) are suitable for facilities where fragrance is to be avoided. Of course, when a fragrance is required, it can be used as a mixed chemical solution obtained by adding a fragrance imparting agent to a sterilizing chemical solution or as a single chemical solution containing only a fragrance imparting agent.

  After the liquid storage chamber 27 is filled with the chemical solution, in this state, the air conditioner body 11 is turned on to start the air conditioner body 11. When the air conditioner main body 11 is turned on, the ultrasonic atomizer 25 is turned on in conjunction with each other, and the ultrasonic vibrator 39 and the blower 41 of the ultrasonic atomizer 25 are activated. In addition, you may make it turn on a power supply separately, without making the power supply of the air-conditioner main body 11 and the ultrasonic atomizer 25 interlock | cooperate.

  The FS 47 is set to be on when the liquid level is in a normal range (for example, 20 to 25 mm) and off when the liquid level is insufficient (less than 20 mm). The liquid flow sensor 59 is turned on when there is a liquid flow in the suction side hose 57 of the liquid feed pump 55 and turned off when the liquid flow disappears, and a bottle replacement lamp (not shown) is turned on and the liquid feed sensor 59 is turned on. A signal for turning off the power supply of the pump 55 is issued.

  When the ultrasonic vibrator 39 is activated (turned on), the vibration energy of the ultrasonic wave is transmitted to the chemical liquid and atomization of the chemical liquid is started. And a chemical | medical solution is consumed after the atomization start. When the liquid level falls and the liquid level becomes insufficient (less than 20 mm), the FS 47 is turned off, the liquid feed pump 55 is activated, and the liquid sensor 27 is detected by the flow sensor 55 while detecting the liquid flow in the suction hose 57. Is replenished. When the replenishment of the chemical solution is completed, the FS 47 is turned on and the liquid feed pump 55 is stopped.

  The control of the liquid feed pump 55 may be timer control. In this case, the timer operates after the set time elapses, and the liquid feed pump is stopped in the chemical liquid pump supplement subroutine. For this reason, it is not necessary to stop the liquid feed pump 55 with the ultrasonic transducer on.

  In this way, the air supply from the air supply duct 13 is introduced into the FS installation part 37 of the liquid storage chamber 27 by the back pressure and the suction pressure of the blower 41. The supply air is introduced into the atomizing portion 35 from the upper elongated hole 33b of the partition wall 33, descends along the outer periphery of the atomized material guide tube portion 45, and the atomized material is separated from the liquid storage surface of the atomized material guide tube portion 45. It is introduced into the atomized material guide cylinder 45 from the gap. The atomized material introduced into the atomized material guide cylinder 45 is sent into the air supply duct 13 via the atomized material conveyance hose 43. For this reason, the supply air from the supply air distribution hose 49 creates a unidirectionally circulated flow through the ultrasonic atomizer 25 and prevents the backflow of the atomized product.

  Here, as described above, the jet outlet 44a of the spray pipe 44 is directed in the air supply flow direction along the axial center of the air supply duct 13, so that it is not involved in the turbulent flow on the inner peripheral wall of the air supply duct 13. The air supply flow that is a laminar flow in the center, that is, the air supply is reliably carried on the air supply. For this reason, the chemical atomized product is blown out together with the supply air (air-conditioning air) from each front end outlet including the farthest outlet 23 of the air supply duct 13. Further, when a disinfectant is included as an air comfort agent, disinfecting in the air supply duct 13 is performed at the same time by partly contacting the wall surface of the air supply duct 13 during transportation.

  In this way, air-conditioning effects such as sterilization, deodorization, and aroma imparting can be obtained together with air conditioning.

  In the above, when the chemical bottle 51 becomes empty during operation, the chemical liquid stops flowing through the suction side hose 57 of the liquid feed pump 55, the signal from the liquid flow sensor 51 is turned off, and a bottle replacement lamp (not shown) is lit. At the same time, the power of the liquid feed pump 55 is turned off. And the replacement | exchange operation | work of the chemical | medical solution bottle 51 is performed manually. If two chemical bottles 51 can be held in the chemical bottle holding chamber 29 and one chemical bottle is empty, and it is possible to continuously switch to the other chemical bottle, the chemical bottle is replaced directly. It is not necessary to replace the bottle until the other chemical bottle becomes empty.

  When the replacement operation of the chemical liquid bottle 51 is completed, the power supply of the liquid feeding pump 55 is manually turned on. Then, the liquid flows into the suction side hose 56 of the liquid feed pump 55, and an ON signal is transmitted from the liquid flow sensor 59. At this time, if the FS 47 is on, the liquid feeding pump 55 is stopped and the ultrasonic vibrator 39 is turned on (oscillated), and the atomized product of the chemical liquid is again fed into the air supply duct 13. Similarly, the chemical liquid atomized product is blown out together with the air-conditioning air from the outlet 23 at each end of the air supply duct 13.

  And when the external signal which turns off the power supply of an air conditioner main body is input, while the power supply of the air conditioner main body 11 is turned off, the air blower 41 of the ultrasonic atomizer 25 and an ultrasonic transducer | vibrator (unit) are interlocked. ) 29 power supplies are also turned off. The operations of the air conditioner main body 11 and the ultrasonic atomizer 25 are stopped.

In addition, when four air conditioner bodies are installed in the amusement hall having a floor area of 1500 m ^2, the ultrasonic atomizer is set to four units corresponding to the four air conditioner bodies.

  And the operating condition of the ultrasonic atomizer 25 in that case uses the thing of oscillation frequency: 2.35-2.6MHz, current consumption: 0.35A (100V), and the amount of chemicals used (atomization amount) is 30-100 mL. / h.

  Further, when the lower gap 33a of the partition wall 33 in the ultrasonic atomizer 25 is 5 mm, the filling liquid level is 25 to 30 mm and the replenishment start liquid level is 20 mm.

11 Air Conditioner Body 13 Air Supply Duct 25 Ultrasonic Atomizer

Claims (5)

A method of comforting indoor air in a building equipped with a centrally controlled air conditioning system,
Corresponding to one air conditioner main body in the air conditioning equipment, one ultrasonic atomizer is provided,
The atomized product by the ultrasonic atomizer of the chemical liquid containing the air comfort agent is mixed with the supply air at the base side of the supply duct, and can be discharged from each outlet of the supply duct.
The indoor air comfort method characterized by the above-mentioned.   The chemical liquid bottle holding chamber in the ultrasonic atomizer is capable of holding two chemical liquid bottles, and when one chemical liquid bottle is empty, it can be continuously switched to the other chemical liquid bottle. The indoor air comfort method according to claim 1, wherein the indoor air is comfortable.   The indoor air comforting method according to claim 1 or 2, wherein the air comfort agent comprises one or more of a disinfectant / deodorant and a fragrance.   The method of making indoor air comfortable according to claim 1, 2, or 3, wherein the atomized product from the ultrasonic atomizer is ejected toward the flow direction at the axial center position of the air supply duct. A centrally controlled air conditioning system used for indoor air comfort in buildings,
Corresponding to one air conditioner main body in the air conditioning equipment, one ultrasonic atomizer is provided,
By the ultrasonic atomizer, the atomized product of the chemical liquid containing the air comfort agent is mixed with the supply air on the base side of the supply duct, and can be discharged from each outlet of the supply duct. Yes,
Air conditioning equipment characterized by that.

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