JP2012072940A - Air conditioning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioning device that prevents bacteria from generating in washing water regardless of chloride concentration in the washing water for air purification, and reduces electricity cost more than conventional technologies.SOLUTION: The air conditioning device includes: a casing 1; a gas-liquid contact means 3 for spraying the washing water to the air taken in the casing 1 for gas-liquid contact; a water tank 2 for receiving the washing water at below the gas-liquid contact means 3; a pump 7 and a pipe 8 composing a circulation line for sending the washing water present in the water tank 2 to the gas-liquid contact means 3; and an ozone generation device 9 for generating power by using the flow of the washing water in the circulation line, and generating ozone with the power and dissolving the ozone in the washing water.

Description

  The present invention relates to an air conditioner, and more particularly to an air conditioner provided with means for purifying air using cleaning water.

  2. Description of the Related Art Conventionally, air conditioning apparatuses for residential use have used purification means such as filters in order to remove dust, odors, unpleasant gas components, and the like in the air. However, the filter is clogged and the purification ability is impaired.

  Then, the air conditioning apparatus provided with the air washing | cleaning means which purifies air by making washing water and air contact as disclosed in patent document 1 is proposed. In this air conditioner, a shower for spraying cleaning water is provided in the apparatus, air taken into the apparatus from the outside is passed through the cleaning water, and air purified thereby is sent out of the apparatus.

  The washing water from the shower is circulated and used for saving water, but there is a possibility that bacteria may be generated in the washing water. Therefore, as disclosed in Patent Document 2, electrolysis of water is also performed to suppress the generation of bacteria.

  FIG. 4 schematically shows the configuration of such a conventional air conditioner. As shown in this figure, outside air is taken into the housing 51 by the suction force of the main blower (F) 53 from the air intake port 52 of the housing 51, and the inside of the housing 51 is directed toward the air discharge port 54. Flowing. In this process, watering means 55 such as a shower is disposed, and the outside air taken into the housing 51 is purified with water from the watering means 55. Water from the sprinkling means 55 is received by the tank 56 at the lower part of the casing 51 and sent again to the sprinkling means 55 by a pump (P) 57. A pair of electrode plates 59 connected to a direct current power source 58 is accommodated in the tank 56, whereby the cleaning water in the tank 56 is electrolyzed to generate chlorine components (hypochlorous acid) and the like. We suppress outbreak of bacteria in water.

Table 2008-038771 JP 2007-151750 A

  However, the technique for suppressing the generation of bacteria by electrolyzing the wash water has the following problems.

  The amount of chlorine (hypochlorous acid) originally contained in tap water varies from region to region, and if such tap water is used as washing water to reduce the operating cost of the equipment, When the chlorine concentration is low, or when the amount of chlorine necessary for sterilization becomes insufficient during operation, chlorine supplementation is necessary.

  Furthermore, since electric power for electrolysis and a DC power supply device for electrolysis are also required, the electric cost is increased.

  Therefore, in view of the problems as described above, the present invention is an air conditioner that can suppress the generation of bacteria in the wash water regardless of the chlorine concentration contained in the wash water for air purification, and can reduce the electric cost compared to the prior art. The purpose is to provide.

  The present invention includes a housing, gas-liquid contact means for spraying and bringing cleaning water into contact with air taken into the housing, a water tank for receiving the cleaning water below the gas-liquid contact means, And a circulation line for sending cleaning water to the gas-liquid contact means. In this aspect, the present invention is characterized by further comprising an ozone generator that generates electric power by using the flow of the cleaning water, generates ozone by the electric power, and dissolves the ozone in the cleaning water.

  According to the present invention, since the generation of bacteria in the wash water is suppressed by ozone, the wash water can be sterilized regardless of the concentration of chlorine contained in the wash water for air purification. Moreover, since the electric power for ozone generation is covered by self-power generation using the flow of cleaning water, the electric cost can be reduced as compared with the conventional technology.

The schematic diagram which shows the structure of the air conditioning apparatus of 1st Embodiment by this invention. The schematic diagram which shows the structure of the air conditioning apparatus of 2nd Embodiment by this invention. The schematic diagram which shows the structure of the air conditioning apparatus of 3rd Embodiment by this invention. The figure which showed typically the structure of the conventional air conditioning apparatus which has a gas-liquid contact type air purification function and an electrolysis type | system | group sanitization function.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a schematic diagram showing a configuration of an air conditioner according to a first embodiment of the present invention.

  The air conditioning apparatus of this embodiment has the structure described below inside the housing | casing 1, as shown in FIG. The water tank 2 is provided in the lower part in the housing | casing 1, The gas-liquid contact means 3 which purifies air, and the main air blower 4 are installed in that order in the upper part. Between the water tank 2 and the gas-liquid contact means 3, an air intake port 5 is provided on the side wall of the housing 1, and an air discharge port 6 is provided above the gas-liquid contact means 3. Air outside the housing 1 is taken into the housing 1 by the suction force of the main blower (F) 4 from the intake port 5, and flows inside the housing 1 toward the air discharge port 6.

  The main blower 4 is installed in front of the air discharge port 6 and supplies the air purified by the gas-liquid contact means 3 from the air discharge port 6 to the outside of the housing 1.

  The gas-liquid contact means 3 purifies the air taken into the housing 1 from the air intake 5 by bringing it into contact with the washing water. For this reason, the gas-liquid contact means 3 has the gas-liquid contact part 31 and the water sprinkling means 32 which spreads the wash water provided above the gas-liquid contact part 31. The gas-liquid contact portion 31 includes a support (not shown) and is filled with a filler such as a Raschig ring, a lessing ring, a pole ring, a saddle, or a sulzer packing. In addition, the gas-liquid contact part 31 may be an integral type with the gas-liquid contact part 31 in which the filler is like a knitted honeycomb or a fiber. In the gas-liquid contact portion 31, the cleaning water sprayed from the sprinkling means 32 adheres to the surface of the filler, and gas-liquid contact with the air taken into the housing 1 is performed on the surface of the filler.

  The water tank 2 is provided below the gas-liquid contact part 31, and is connected to the pump (P) 7 through a pipe. The water discharge side of the pump 7 is connected to the water spray means 32 via the pipe 8. Thus, the washing water is circulated. The water spray means 32 is, for example, a pipe having a large number of holes, and the cleaning water is sprayed from these holes. The number, shape, and position of the holes provided in the sprinkling means 32 are not particularly limited, but it is preferable that the holes be provided so that the cleaning water can be sprayed almost uniformly. However, depending on the structure of the filler and the flow of air, the water spray amount with respect to the gas-liquid contact portion 31 may be biased. Moreover, it is preferable to provide a nozzle having a shape in which the cleaning water is sprayed as finer droplets in the holes to which the cleaning water is sprayed.

  If the washing water in the water tank 2 is sprayed from the sprinkling means 32 and is circulated by the pipe 8 and the pump 7 so as to be received by the water tank 2 again, the quality of the washing water may deteriorate and bacteria may be generated in the washing water. There is. In order to suppress the generation of such bacteria, the present invention has a mechanism for dissolving ozone having a bactericidal and sterilizing power against bacteria and viruses in the wash water. More specifically, a water current generation type ozone generator 9 is provided in the middle of a pipe 8 (that is, a cleaning water circulation line) connecting the water tank 2 and the water sprinkling means 32.

  This water flow generation type ozone generator 9 includes a water flow turbine 91, an induction type power generation mechanism 92 that generates electric power by the rotation of the water flow turbine 91, and ozone that generates ozone in the pipe 8 with the electric power generated by the power generation mechanism 92. Generating means 93. The water flow turbine 91 and the ozone generating means 93 are connected in series along the water flow direction of the pipe 8 in this order, and are arranged in the middle of the pipe 8.

  In the water flow generation type ozone generator 9, the water flow turbine 91 is rotated by the force of the circulating flow through the pipe 8, and the power generation mechanism 92 generates electric power (inductive power) by this rotation. Using the generated electric power, the ozone generating means 93 continuously generates ozone in the pipe 8 and dissolves ozone in the cleaning water passing through the pipe 8. Ozone suppresses the generation of bacteria in the wash water. As an ozone generation mechanism (ozonizer), an electrolysis type (electrode type), a silent discharge type, a rotating electrode type, or the like is applicable.

  Furthermore, in the conventional electrolysis sterilization mechanism, it is necessary to consider the amount of chlorine in water, but since ozone does not require chlorine when generated, ozone can be supplied stably regardless of the amount of chlorine in water. it can.

  Note that the ozone generator 9 of the present apparatus supplies power for ozone generation by self-power generation using a water flow, and the water flow is generated by the pump 7. For this reason, there is no merit in terms of energy when the driving power of the pump 7 is increased so that the circulating flow energy can turn the water turbine 91. However, in actuality, it is rare that an optimum rated power can be selected in selecting a water discharge pump, and in many cases, there is surplus power with respect to the circulating flow energy. Therefore, if this surplus power is applied to the energy for turning the water flow turbine 91 (that is, the power for generating ozone), even if the ozone generator 9 is provided, the electric cost does not increase. In the prior art, the electric power used for electrolysis for sterilization was required separately from the driving power of the circulation pump. However, the present invention can reduce the electric cost as compared with the prior art.

  As the material of the electrode used when the electrolysis type is used as the ozone generation mechanism, for example, platinum tantalum or lead dioxide based on Ti can be used for the anode, and Ti is used for the cathode. Platinum can be used. Note that it is effective to reverse the polarities of both electrodes when there is a possibility that the scale is deposited on the cathode and the electrical conductivity is lowered. That is, the scale deposited on the cathode can be removed by switching the cathode to the anode. When such a reversal operation is required, the same material as the anode may be used as the cathode material.

(Second Embodiment)
FIG. 2 is a schematic diagram showing a configuration of an air conditioner according to a second embodiment of the present invention. In this figure, the same reference numerals are used for the same components as those in the first embodiment, and descriptions of the same components as those in the first embodiment are omitted. Further, the ozone generator 9 is illustrated with its constituent elements omitted. Hereinafter, differences from the first embodiment will be described.

  As a different configuration from the first embodiment, the ozone concentration in the wash water is measured, and if the ozone concentration exceeds a certain ozone concentration, the wash water does not pass through the ozone generator 9 and is below a certain ozone concentration. The cleaning water circulation line can be switched to a path through which the cleaning water passes through the ozone generator 9. Therefore, as shown in FIG. 2, the apparatus of the present embodiment includes an ozone concentration meter 10 that monitors the ozone concentration in the wash water in the water tank 2 in addition to the configuration of the air conditioner of the first embodiment, and an ozone concentration meter. A three-way valve 11 for switching the washing water circulation line from the pump 7 to the sprinkling means 32 between a path through which the washing water passes through the ozone generator 9 and a path through which the washing water does not pass according to the ozone concentration detected at 10. have.

  According to such a configuration, in addition to the effect of the apparatus according to the first embodiment, the shortage and excess supply of ozone in the wash water can be minimized, so that the ozone concentration can be accurately maintained within a certain range. it can.

(Third embodiment)
FIG. 3 is a schematic diagram showing a configuration of an air conditioner according to a third embodiment of the present invention. In this figure, the same reference numerals are used for the same components as those in the first embodiment, and description of the same components as those in the first embodiment is omitted. Further, the ozone generator 9 is illustrated with its constituent elements omitted. Hereinafter, differences from the first embodiment will be described.

  The configuration different from the first embodiment is that the ozone generator 9 is provided on the water supply line for supplying tap water to the water tank 2 instead of the piping 8 of the washing water circulation line. In the present embodiment, as shown in FIG. 3, a tap water supply line 12 is directly connected to a water supply pipe 13 to a watering means 32 constituting a part of the circulation line, and an ozone generator is provided on the water supply line 12. 9 is installed. In addition, the water flow turbine and the ozone generation means (not shown) of the ozone generator 9 are connected in series along the water flow direction of the water supply line 12 in this order.

  Although the water supply line 12 provided with the ozone generator 9 is directly connected to the supply pipe 13 which is a part of the circulation line in FIG. 3, it may be connected to the water tank 2.

  According to the configuration of FIG. 3, when tap water is supplied from the water supply line 12 to the sprinkling means 32, the water turbine rotates to generate power as in the first embodiment (see FIG. 1). The ozone generating means continuously generates ozone using the generated electric power, and the ozone is dissolved in the tap water passing through the water supply line 12. Since the water supply line 12 is directly connected to the water supply pipe 13 of the water sprinkling means 32, ozone water enters the circulation line including the water tank 2, the pipe 8, and the like. Thereby, generation | occurrence | production of the microbe in wash water is suppressed.

  In this configuration, ozone is generated only when tap water is supplied, so when the cleaning water is circulated and used for a while and the ozone becomes low, when the cleaning water is discharged for replacement and the tap water is supplied again, Ozone can be added to tap water. For this reason, even tap water having a relatively small chlorine content can be changed to cleaning water containing ozone at the time of replacement. Moreover, since the electric power for ozone generation is obtained by the water flow at the time of supplying tap water, even if the ozone generator 9 is provided, the electric cost does not increase. Rather, the cost of electricity can be reduced compared to the prior art in which water is sterilized by electrolysis.

  In addition, this device detects whether or not the ozone concentration in the wash water has become a predetermined value or less due to the circulating use of the wash water, and supplies tap water when the detection result is less than the predetermined value. There should be. For this reason, in this apparatus, an ozone concentration meter (not shown) for monitoring the ozone concentration in the wash water in the water tank 2 as in the second embodiment and an upstream side of the ozone generator 9 in the water supply line 12 are installed. It is preferable to add a water supply valve (not shown) that opens and supplies tap water when the detected value of the ozone concentration meter becomes a predetermined value or less. With this additional configuration, the ozone concentration in the wash water can be accurately maintained within a certain range.

DESCRIPTION OF SYMBOLS 1 Case 2 Water tank 3 Gas-liquid contact means 31 Gas-liquid contact part 32 Sprinkling means 4 Main blower 5 Air intake port 6 Air discharge port 7 Pump 8 Pipe 9 Ozone generator 91 Water turbine 92 Power generation mechanism 93 Ozone generation means 10 Ozone concentration Total 11 Three-way valve 12 Tap water supply line 13 Water supply tank

Claims (6)

A housing,
Gas-liquid contact means for spraying and contacting cleaning water to the air taken into the housing;
A water tank for receiving the washing water below the gas-liquid contact means;
A circulation line for sending the wash water in the water tank to the gas-liquid contact means;
Have
An air conditioner further comprising an ozone generator that generates electric power using the flow of the cleaning water, generates ozone by the electric power, and dissolves the ozone in the cleaning water. The ozone generator has a water turbine rotating with a water flow, an induction power generating mechanism that generates electric power by the rotation of the water turbine, and an ozone generating means that generates ozone with the electric power generated by the power generating mechanism. ,
The water turbine and the ozone generating means are disposed on the circulation line, and the water turbine and the ozone generating means are connected in series along the water flow direction of the circulation line in this order. The air conditioning apparatus according to claim 1. The ozone generator includes a water turbine rotating with a water flow, an induction power generating mechanism that generates electric power by the rotation of the water turbine, ozone generating means for generating ozone with the electric power generated by the power generating mechanism, and the air generator. A liquid contact means or a water supply line for supplying tap water as the washing water to the water tank,
The water turbine and the ozone generating means are disposed on the water supply line, and the water turbine and the ozone generating means are connected in series along the water flow direction of the water supply line in this order. The air conditioning apparatus according to claim 1. An ozone concentration meter for monitoring the ozone concentration in the wash water in the water tank;
When the ozone concentration by the ozone concentration meter is below a certain value, the circulation line is switched to a path through which the washing water passes through the ozone generator, and the ozone concentration by the ozone concentration meter exceeds a certain value. 3. The air conditioner according to claim 1, further comprising a three-way valve that switches the circulation line to a path through which the washing water does not pass through the ozone generation device. An ozone concentration meter for monitoring the ozone concentration in the wash water in the water tank;
A water supply valve that opens the water supply line when the ozone concentration by the ozone concentration meter is below a certain value, and closes the water supply line when the ozone concentration by the ozone concentration meter exceeds a certain value; The air conditioner according to claim 1 or 3, characterized by comprising:   The air conditioner according to any one of claims 1 to 5, wherein the ozone generating means is a silent discharge type or an electrode type ionizer.

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