JPH09236280A - Pasteurizing air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simultaneously conduct the formation of an aseptic air and regulations of the temperature and humidity by providing a sprinkling pasteurizer for sprinkling water containing ozone in the air and a temperature regulator for regulating the temperature of the air passed through an ozone removing unit in a vessel having a suction port and an air supply port. SOLUTION: The pasteurizing air conditioner comprises a water storage unit 9 in the lower part of a sprinkling type heat exchanger 8 of a sprinkling pasteurizer 4 in a vessel 1 a having a suction port 2 and an air supply port 2, and an ozone generator 10 for containing ozone in the water in the unit 9. An ozone removing unit 5 has an adsorbing decomposing unit 13 for adsorbing the residual ozone in the air pasteurized through the pasteurizer 4 to decompose it to oxygen and an ultraviolet ray emitting unit 14 for emitting the ozone decomposing ultraviolet rays to the residual ozone in the air. A temperature regulator 6 has a heater 15 for regulating the temperature of the air after the residual ozone is removed to supply the air temperature regulated and humidity regulated by the heater 15 from the port 3 by a blower 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sterilizing air conditioner capable of simultaneously sterilizing air and adjusting temperature and humidity.

[0002]

2. Description of the Related Art In bio-tests, experiments, laboratories, medical rooms, animal breeding rooms, food processing rooms, packaging work rooms and the like, it is required to keep the room temperature and humidity constant and sterilized. A wide variety of air conditioners for keeping the room at a constant temperature and humidity and air sterilizers for keeping the room at a sterile state have been proposed and used.

[0003]

However, since the conventional air conditioner and air sterilizer are independent of each other, a large installation space is required even if they are used in combination, and the equipment cost and operating cost are also high. Is expensive.

Therefore, an object of the present invention is to provide a compact sterilization air conditioner capable of effectively achieving constant temperature and humidity of air and sterilization at the same time.

In order to achieve the above object, the present invention relates to a water spray sterilizing unit for spraying water containing ozone to air sucked from the air intake port in a container having an air intake port and an air supply port, and the water spray sterilization. Sterilization air conditioner provided with an ozone removing section for removing residual ozone in the air passing through the section, and a temperature adjusting section for controlling the temperature of the air passing through the ozone removing section and guiding it to the air supply port. I will provide a.

In the sterilization air-conditioning apparatus having the above-described structure, first, the water containing ozone is sprayed to the air sucked from the intake port in the water spray sterilization unit, so that the water containing ozone can effectively sterilize the air. At the same time, since heat is exchanged in the water spray sterilization unit using water as a refrigerant, stable temperature and humidity conditions can be easily maintained. Then, since the residual ozone in the air sterilized by the water spray sterilization unit is removed by the next ozone removal unit, it is possible to prevent the air containing harmful residual ozone from being delivered from the air supply port. Furthermore, since the temperature and humidity of the air from which residual ozone has been removed can be finally adjusted by the temperature control unit, sterilized and temperature-controlled humidity air can be sent out from the air supply port.

Further, since the residual ozone is removed by the ozone removing section before the temperature control section, the temperature control section can be protected from oxidation, corrosion and the like due to the residual ozone. Therefore, since measures for ensuring the corrosion resistance of the temperature control unit can be made slight, cost reduction and long life can be achieved.

In the sterilization air-conditioning apparatus having the above structure, preferably, the water spray sterilization unit is provided with a water spray type heat exchanger having a water spray nozzle at the top, and a water storage unit provided below the water spray heat exchanger. An ozone generator for causing the water in the water storage unit to contain ozone, a cooling unit for cooling the water in the water storage unit, and a pump device for supplying the water in the water storage unit to the water spray nozzles are provided.

According to the above construction, the water-spraying type heat exchanger having the water-spraying nozzle at the top makes it possible to atomize the contained water and bring it into almost uniform contact with the air, so that the air sucked from the intake port is sterilized. Can be done effectively.
Further, since the ozone generated from the ozone generator can be replenished to the water in the water storage section provided at the lower part of the water sprinkler type heat exchanger, the ozone content of the sprayed water can be always maintained at an appropriate amount. . Furthermore, since the water cooled in the cooling unit can be supplied from the water storage unit to the water spray nozzle, the temperature and humidity conditions of the air sucked from the intake port can be controlled more accurately. In addition, water is economical because it can be circulated and used, and since it can be discharged as sterile water after a certain period of use, there is no risk of environmental pollution.

More preferably, the ozone removing unit includes an ozone adsorption decomposition unit that adsorbs residual ozone in the air and decomposes it into oxygen, and an ultraviolet irradiation unit that irradiates the residual ozone in the air with ozone for ozone decomposition. Have.

According to the above construction, residual ozone in the air sterilized by the water spray sterilization unit can be effectively and more reliably removed by the ozone adsorption decomposition unit and the ultraviolet irradiation unit.

More preferably, the ozone adsorption / decomposition section is formed by alternately laminating metal catalyst layers and activated carbon layers.

According to the above construction, the residual ozone in the air can be effectively adsorbed and decomposed by the metal catalyst layer and the activated carbon layer of the ozone adsorption decomposition section.

More preferably, the temperature control section has a heater.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show one embodiment of the present invention. Referring to these drawings, the sterilization air conditioner has a container 1 having an intake port 2 and an air supply port 3, a water spray sterilization unit 4 for spraying water containing ozone to the air sucked from the air intake port 2, and the water spray unit. An ozone removing unit 5 that removes residual ozone in the air that has been sterilized by passing through the sterilizing unit 4 and a temperature adjusting unit 6 that adjusts the temperature of the air that has passed through the ozone removing unit 5 and guides it to the air supply port 3. It is characterized by being provided.

The water spray sterilization unit 4 is provided with a so-called carrier type water spray heat exchanger 8 having a water spray nozzle 7 at the top. The carrier-type sprinkler heat exchanger 8 itself is well known in the field of air conditioners, and therefore detailed description thereof is omitted here. However, the sprinkler heat exchanger 8 in the present invention is different from a general sprinkler heat exchanger in that the components that come into contact with water or air containing ozone, such as mesh materials to be laminated, are made of a corrosion-resistant material such as plastic or stainless steel. Or the surface is coated with a corrosion resistant material. It should be noted that it is desirable that the ozone removing unit 5 also has its components made of a corrosion resistant material or the surface thereof is coated with a corrosion resistant material.

A water storage unit 9 is provided below the water spray type heat exchanger 8 of the water spray sterilization unit 4 in the container 1. Further, the water storage unit 9 is provided with an ozone generator 10 for causing the water in the water storage unit 9 to contain ozone. This ozone generator 1
Although not particularly limited to 0, while circulating the water in the water storage unit 9, the circulating water is irradiated with ultraviolet rays having a wavelength of 250 to 260 nm (more preferably 253.7 nm) from the ultraviolet lamp in the circulation path. Can be used. In this embodiment, the ozone generator 10 is provided in the water storage part 9 in the container 1, but the ultraviolet irradiation part of the ozone generator 10 may be arranged outside the water storage part 9 in the container 1. Alternatively, it may be provided so as to project to the outside of the container 1.

Further, in the water storage section 9, a cooling section 11 for cooling the water in the water storage section 9 and a water spray nozzle 7 for spraying the water in the water storage section 9 are provided.
And a pump device 12 for supplying As the cooling unit 11, a general circulation type water cooler that cools the water in the water storage unit 9 while circulating it can be used. In this embodiment, the pump device 12 for supplying the water in the water storage portion 9 to the water spray nozzle 7 also functions as a circulation pump of the circulation type water chiller, and is arranged outside the container 1 together with the cooling portion 11. Although provided, the pump device 12 has a circulation path independent of the circulation path of the circulation-type water chiller of the cooling section 11 and the water storage section 9
The water inside may be configured to be supplied to the water spray nozzle 7, and the pump device 12 can be installed in the water storage section 9 of the container 1.

Further, in this embodiment, the ozone removing section 5 adsorbs the residual ozone in the air that has passed through the water spray sterilization section 4 and decomposes it into oxygen, and the ozone adsorbing and decomposing section 13 and the residual ozone in the air. It has an ultraviolet irradiation unit 14 that irradiates ultraviolet rays for ozone decomposition. Preferably, the ozone adsorption / decomposition section 13 is configured by alternately laminating mesh-shaped metal catalyst layers and activated carbon fine particle layers. In this embodiment, the ozone adsorption / decomposition section 13 is arranged on the downstream side of the ultraviolet irradiation section 14, but the ozone adsorption / decomposition section 13 may be arranged on the upstream side of the ultraviolet irradiation section 14.

The temperature adjusting section 6 has a heater 15 for adjusting the temperature of the air after removal of residual ozone, and the air whose temperature is adjusted by the heater 15 is blown by the blower 16 into the air outlet 3. Is configured to be transmitted from.
The air taken into the container 1 through the intake port 2 is once cooled in the water spray sterilization unit 7, and then heated to a required temperature such as room temperature by the temperature control unit 6, but the air is supplied in the water spray sterilization unit 8. Since the cooling temperature and the humidity can be maintained at desired values, the humidity conditions when the air is heated to a required temperature such as room temperature by the temperature control unit 6 can be maintained at desired values.

Therefore, in the sterilization air-conditioning apparatus having the above-mentioned structure, first, the water containing ozone is sprayed on the air sucked from the intake port 2 in the water spray sterilization unit 4, so that the water containing ozone is effective for sterilizing the air. Can be done. In addition, since heat is exchanged in the water spray sterilization unit 4 with water as a refrigerant, stable temperature and humidity conditions can be easily maintained.
Then, residual ozone in the air sterilized by the water spray sterilization unit 4 is almost surely removed by the next ozone removal unit 5, so that air containing harmful residual ozone is prevented from being sent out from the air supply port 3. it can. Furthermore, since the temperature and humidity of the air from which residual ozone has been removed can be finally adjusted by the temperature adjustment unit 6, temperature-controlled and humidity-controlled sterile air can be sent out from the air supply port 3.

Further, since the residual ozone is removed by the ozone removing section 5 before the temperature control section 6, the temperature control section 6 can be protected from oxidation, corrosion and the like due to the residual ozone. Therefore, since measures for ensuring the corrosion resistance of the temperature control unit 6 can be made slight, cost reduction and long life can be achieved.

Further, according to the above-mentioned structure, the sprinkler type heat exchanger 8 having the sprinkling nozzle 7 at the top can atomize the contained water and bring it into contact with the air almost uniformly, so that the intake port 2 It is possible to effectively sterilize the sucked air. Further, since the ozone generated from the ozone generator 10 can be replenished to the water in the water storage section 9 provided in the lower part of the water sprinkler type heat exchanger 8, the ozone content of the sprayed water is always kept at an appropriate amount. be able to. Further, since the water cooled by the cooling unit 11 can be supplied to the water spray nozzle 7, the temperature and humidity conditions of the air sucked from the intake port 2 can be controlled more accurately. In addition, water is economical because it can be circulated and used, and since it can be discharged as sterile water after a certain period of use, there is no risk of environmental pollution.

Further, according to the above configuration, the water spray sterilization unit 4
Residual ozone in the air that has been sterilized in step 2 can be effectively and more reliably removed by the ozone adsorption decomposition part 13 and the ultraviolet irradiation part 14. Further, residual ozone in the air can be effectively adsorbed and decomposed by the metal catalyst layer and the activated carbon layer of the ozone adsorption decomposition section 13.

[0026]

As is apparent from the above description, according to the present invention, in a container having an intake port and an air supply port, a water spray sterilization unit for spraying water containing ozone to the air sucked from the intake port, Since an ozone removing unit that removes residual ozone in the air that has passed through the water spray sterilization unit and a temperature control unit that controls the temperature of the air that has passed through the ozone removal unit and guides it to the air supply port are provided. It is possible to provide a compact sterilization air conditioner that can effectively achieve constant temperature and constant humidity and sterilization of air at the same time.

[Brief description of drawings]

FIG. 1 is a schematic vertical sectional view of a sterilization air conditioner showing an embodiment of the present invention.

FIG. 2 is a side view of the sterilization air conditioner shown in FIG.

[Explanation of symbols]

 1 container 2 intake port 3 air supply port 4 water spray sterilization unit 5 ozone removal unit 6 temperature control unit 7 water spray nozzle 8 water spray heat exchanger 9 temperature control unit 10 ozone generator 11 water cooler 12 pump device 13 ozone adsorption decomposition unit 14 UV irradiation part 15 Heater

Claims (5)

[Claims] 1. A water spray sterilization unit for spraying water containing ozone to air sucked from the air intake port, and residual ozone in the air passing through the water spray sterilization unit in a container having an air intake port and an air supply port. A sterilization air conditioner comprising: an ozone removing unit for removing the ozone and a temperature adjusting unit for adjusting the temperature of the air passing through the ozone removing unit to guide the air to an air supply port. 2. The water spray sterilization unit comprises a water spray type heat exchanger having a water spray nozzle at the top, and a water storage unit provided below the water heat exchange unit, wherein the water in the water storage unit contains ozone. The sterilization air conditioner according to claim 1, further comprising: an ozone generator for cooling, a cooling unit that cools the water in the water storage unit, and a pump device that supplies the water in the water storage unit to the water spray nozzle. 3. The ozone removing section has an ozone adsorbing and decomposing section that adsorbs residual ozone in the air and decomposes it into oxygen, and an ultraviolet irradiating section that irradiates residual ozone in the air with ozone for decomposing ozone. The sterilization air conditioner according to claim 1, which is characterized in that. 4. The sterilization air conditioner according to claim 3, wherein the ozone adsorption decomposition section comprises metal catalyst layers and activated carbon layers alternately laminated. 5. The sterilization air conditioner according to claim 1, wherein the temperature control unit has a heater.