JPH02254237A - Method and device for conveying drainage from air conditioner - Google Patents

Abstract

PURPOSE:To dispense with laying and erecting pipes for the conveyance and discharge of the drainage from an air conditioner by a method wherein the drainage is collected in a drainage tank and atomized and a current of air carries the fine spray of water out of the system. CONSTITUTION:A drainage tank 4 is equipped with an atomization device 5 and a control device (circuit) 6 both for atomizing the water collected therein. Applicable to the atomization is, for example, an ultrasonic vibrator and its drive device in use for a humidifier and the like or an impeller capable of rotation at high speed and its drive device. To the drainage tank 4 is connected an air-discharge duct 7 equipped at an intermediate position with a discharge fan 8; an air inlet 9 is formed in the drainage tank 4. The drainage from an air conditioner collected in the drainage tank 4 is atomized to a gaseous state by the atomization device 5. By driving the drainage fan 8, the fine spray of water is sucked into the duct 7, carried by a current of air, and discharged out of the system from the duct 7 on the exit side of the discharge fan 8.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method and apparatus for conveying air conditioning drain generated from cooling coils of air conditioning equipment such as air handling units, fan coil units, and room air conditioners. .

[Prior Art] It is known that when the above-mentioned air conditioner is operated, air conditioning drain is generated from the cooling coil.

The amount of air conditioning drain reaches a considerable amount depending on the ambient temperature and operating time, and cannot be left as is.

Therefore, conventionally, the air conditioning drain was transported and discharged by a transport method as shown in FIG.

That is, 51 indicates a wall of a building such as a building, and 52 indicates a ceiling. In the attic 53, fan coil units 54, which are air conditioners, are installed at appropriate intervals. The water is introduced into a vertical pipe 56. Note that a duct 57 for various equipment such as wiring materials, a ventilation duct 59 for ventilation of the room 58, lighting equipment 60, etc. are provided in the ceiling 53, and a window 61 is also provided in the wall portion 51. There is.

According to the above-mentioned method for transporting air conditioning drain, the air conditioning drain naturally flows down by gravity in the horizontal draw pipe 55 arranged at a predetermined slope, and is led to the vertical pipe 56 . Therefore, the air conditioning drain does not accumulate in the attic 53 or in the horizontal pipe 55, and the intended purpose can be achieved.

However, studies by the inventors have revealed the following problems that should be improved.

[Problems to be Solved by the Invention] That is, in order to prevent the air conditioning drain from stagnation, it is necessary to set the horizontal draw pipe 55 to a predetermined slope or higher. In this case, if the building has a small area, the distance from the air conditioner 54 to the vertical pipe 5G is short, the horizontal pipe 55 may also be short, and therefore the height required for the slope of the horizontal pipe 55 may also be small.

However, if the building has a large area, the horizontal pipe 55 must be made long, which increases the height required for the slope.

In other words, the position where the horizontal pipe 55 is connected to the vertical pipe 56 becomes lower, and if an attempt is made to hide the connection position with the horizontal pipe 55 and vertical pipe 56, the height of the ceiling 52 as shown in FIG. h
must be reduced. Such construction is not preferable because it creates a feeling of oppression in the room 58.

On the other hand, if the horizontal draw pipe 55 is exposed on the ceiling of the room 58, the aesthetic appearance will be seriously impaired, which is not desirable in terms of the design of the building.

Furthermore, if the height of the room 58 is sufficiently high and the height of the attic 53 is also sufficiently high, the height required for one floor becomes large, making it difficult to obtain the desired number of floors.

In addition, if you try to hide the standpipe 56, you will have to install a decorative enclosure on the wall, and furthermore,
6 penetrates each floor, which is not preferable from a fire prevention standpoint.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide an air conditioning drain conveying method and apparatus for conveying and discharging air conditioning drain without using a horizontal pipe or a vertical pipe. be.

[Means for Solving the Problems j] The above object according to the present invention is achieved by storing air conditioning drain in a storage tank, turning it into fine water droplets, and discharging the fine water droplets together with air.

[Function] That is, the air conditioning drain is turned into fine water droplets, so to speak, as if they were blown into the air, so that these fine water droplets can be discharged together with the air using a discharge fan or the like.

Therefore, there is no need for horizontal pipes, vertical pipes, etc. that serve as conveyance and discharge routes for discharging air-conditioning drain, and there is also no need for space for supplying these.

[Embodiments] Hereinafter, embodiments of an air-conditioning drain conveying method and apparatus to which the present invention is applied will be sequentially described with reference to the drawings.

First, a first embodiment of the present invention will be described with reference to FIG. Note that FIG. 1 shows the basic concept of the present invention.

Air conditioning drain A generated by operating the cooling coil 1 is transferred from the drain pan 2 to the storage tank 4 via the drain pipe 3.
The water is transported to and stored as shown in the figure.

A water droplet forming device 5 and a control device 6 are attached to the storage tank 4, and are configured to turn the water stored in the storage tank 4 into fine water droplets. Note that as the water droplet forming device 5, an ultrasonic vibrator and its driving device used in a humidifier or the like, or an impeller rotating at high speed and its driving device, etc. may be applied.

Further, an exhaust duct 7 is connected to the storage tank 4, and an exhaust fan 8 is provided in the middle of the exhaust duct 7. Furthermore, the storage tank 4 is provided with an air intake port 9 .

Next, transport and discharge of the air conditioning drain will be explained.

The air-conditioning drain water stored in the storage tank 4 is turned into fine water droplets by the water droplet forming device 5 as shown by dots in the figure, and is in a so-called vaporized (atomized) state.

On the other hand, when the exhaust fan 8 is driven, the air taken in from the air intake port 9 is sucked into the duct 7, so the storage tank 4
Air flow is generated within the As a result, fine water droplets that have been made into a mist, in other words, air-conditioning drain, are sucked into the duct 7 along with the airflow, and further from the duct 7 provided on the secondary side of the exhaust fan 8. It is discharged outside the conveyance route.

In addition, the control device 6 controls the driving of the water droplet forming device 5 in accordance with the timing of the air conditioning drain in the storage tank 4, and controls the driving of the cooling coil 1.
, exhaust fan 8, and peripheral equipment, and is configured to prevent overflow of air conditioning drain through this control.

As is clear from the above configuration and operation, the method and device for conveying air conditioning drain according to the present invention do not convey air conditioning drain by gravity. Therefore, the horizontal draw pipe and vertical pipe described in the conventional example are not necessary, and the above-mentioned problems can be solved.

Next, a second embodiment of the present invention will be described with reference to FIG. The difference between this embodiment and the first embodiment is that indoor air is taken in and discharged together with fine water droplets, and the system is also used for conveying and discharging the air conditioning drain as well as other exhaust systems. It's about doing. Therefore, the same reference numerals are given to the same components as in the previous embodiment, and the explanation thereof will be omitted.

That is, an opening 10 is formed at one end of the duct 7 so that air from the room 12 can be taken in from the ceiling 11 by driving the exhaust fan 8 and exhausted from the duct 7. In this case, the air conditioning drain can be transported and discharged as described above at the same time as the air in the room 12 is discharged, and the equipment can be simplified.

Next, a third embodiment of the present invention will be described with reference to FIG. In this embodiment, a chamber in the ceiling formed by the floor, wall, ceiling plate, etc. of a building is used as a discharge duct.

That is, 11 is a ceiling plate, and an opening 13 is provided in a part of the ceiling plate to take in air from the room 12.

Furthermore, an opening 15 for intake is provided on one side of the wall 14, and an opening 16 for exhaust is provided on the other side of the wall 14.

In a ceiling chamber 18 formed by the wall portion 14, the ceiling plate 11, and the upper floor 17, the air conditioning drain conveying device described in each of the embodiments is provided.

What should be noted in this embodiment is that the air conditioning drain is transported and discharged without installing the duct 7.

The air conditioning drain is made into fine water droplets in the same manner as described above, and by driving the exhaust fan 8, the air taken in from the opening 13.15 flows in the direction of the exhaust fan 8, generating an air current. Then, the fine water droplets flow to the exhaust fan 8 along with the air current, and
4 It is discharged outside.

With this configuration, the air conditioning drain can be transported and discharged easily.

Next, a specific application example will be described as a fourth embodiment of the present invention. It should be noted that FIG. 4 is a cross-sectional view of the main parts of a building to which the present invention is applied, and the same components as in each of the above embodiments are given the same reference numerals.

Inside the ceiling chamber 18 are a cold air coil 1 and a drain pan 2.
, a storage tank 4, an exhaust fan 8, an exhaust duct 23, a duct 21 for installing wiring, etc., an indoor exhaust duct 22, a lighting fixture 24, etc. are provided. Further, a vent cap 25 is provided on the wall portion 14 and connected to the exhaust fan 8.
Furthermore, a window 26 is also formed. Note that the water droplet forming device 5
, the control circuit 6 is omitted from illustration as it is associated with the storage tank 4.

According to the above-described structure, the air-conditioning drain generated by the operation of the cooling coil 1 is guided from the drain pan 2 to the storage tank 4 as described above, and is turned into fine water droplets as described above and sucked into the exhaust fan 8. From the vent cap 25 to the wall portion 14
In other words, it is discharged outside the conveyance and discharge route.

The air conditioning drain can be discharged without providing a horizontal pipe, vertical pipe, etc. in the ceiling chamber 18 as described in the conventional example, so there is no inconvenience such as the ceiling plate 11 hanging down from the upper side of the window 26. do not have.

Although each embodiment of the present invention has been described above, the present invention is not limited to the above and can be modified in various ways.

For example, although the drain pan 2 and drain piping 3 are provided below the cooling coil 1, the drain pan 2 and the like may be omitted by providing the reservoir 4 below the cooling coil 1.

Furthermore, although the duct 7 is shown in a folded configuration, it may also be straight.

[Effects of the Invention] As explained above, the method and device for conveying air-conditioning drain according to the present invention turn air-conditioning drain into fine water droplets, which are then sucked into the exhaust fan and discharged outside the conveyance path. Piping for transportation and discharge becomes unnecessary. Therefore,
There is no inconvenience such as reduction of other space, such as indoor space of a building, due to the piping, and the space can be used efficiently. In addition, piping and equipment work are no longer necessary, and the cost of air conditioning equipment can be reduced.

Furthermore, since piping is no longer required, the degree of freedom in designing air conditioning equipment and buildings is improved, and various interior decorations can be performed.

[Brief explanation of drawings]

Fig. 1 is a diagram showing the transportation configuration of an air conditioning drain showing a first embodiment of the present invention, Figure 2 is a diagram showing a transportation configuration of an air conditioning drain showing a second embodiment of the invention, and Figure 3 is a diagram showing a third embodiment of the invention. FIG. 4 is a sectional view of a main part of a building showing a fourth embodiment of the present invention, and FIG. 5 is an explanatory diagram showing the conventional air conditioning drain discharge. Reference numeral 1 in the figure: Cooling coil 2: Drain pan 4: Storage tank 5: Water droplet forming device 6: Control circuit 7: Duct 8: Exhaust fan A: Air conditioning drain. Broom 1 Figure 2 rM

Claims (2)

[Claims] (1) A method for transporting air-conditioning drain, in which water is stored in a storage tank, and the stored air-conditioning drain is turned into fine water droplets and discharged together with gas to the outside of the transport system. (2) A storage tank for storing air-conditioning drain, a water droplet-forming means for turning the air-conditioning drain stored in the storage tank into fine water droplets, and a discharge means for discharging the fine water droplets of the air-conditioning drain together with gas. Air conditioning drain conveyance device.