JPS6135453B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention is a method for sterilizing the air in one or more rooms, controlling the temperature and humidity to an optimal state, and circulating the air using a single sterilization temperature and humidity control device. Regarding. In particular, the present invention provides a method for sterilizing air in a plurality of rooms using a single sterilizing temperature/humidity control device and controlling temperature and humidity to an optimum state. The step of opening the shutoff valves interposed in the air suction pipe and the air delivery pipe of the room to be air-circulated and sending out the air, sterilizing the air from the room with steam and removing solids such as garbage. cooling and humidifying the sterilized and purified air to saturated humidity in one or more stages; and converting the cooled and humidified air to saturated humidity into sterilized fresh air or A method for controlling a plurality of chambers, comprising the following steps: adjusting the temperature and humidity to a desired optimum state using steam; and sending and circulating air whose temperature and humidity have been controlled to an optimum state into the chambers. This invention relates to a method for sterilizing air and controlling temperature and humidity.

Hereinafter, an apparatus capable of achieving the method of the present invention will be explained with reference to the drawings. Although three chambers are shown in the drawing, it is possible to sterilize and control the temperature and humidity of any desired number of chambers. In addition, it is preferable that the room be configured as a constant temperature room, and in order to make the room a constant temperature room, the drawing shows a structure in which each room is equipped with a heat exchanger, but only one heat exchanger is required. It is possible to control the temperature of each room by providing pipes that communicate with each room and circulating temperature-controlled water to each room. Arrows in the figure indicate the direction of fluid flow. Number 1 generally indicates a room such as a hospital room. The inside of each chamber 1 is covered with a heat-insulating wall 28 made of rubber, stainless steel, or the like. A water pipe 27 is arranged around the heat-insulating wall 28, and the outside of the water pipe 27 is covered with an outer wall 26 made of a heat insulating material. Each chamber 1 has air intake〓〓〓〓
A conduit 30 and an air delivery conduit 31 are connected to each other, and a shutoff valve 29 is interposed in each air suction pipe 30 and air delivery pipe 31, respectively. Each water pipe 27 is connected to a heat exchanger 32, and water whose temperature is controlled by the heat exchanger 32 is circulated through the water pipes of the chamber 1 used. Each air delivery conduit 31 is connected to an air conduit 3, and each air suction conduit 30 is connected to a return conduit 2.
is connected to. Air in the chamber 1 is drawn into the air conduit 3 through the air delivery conduit 31 through the open shut-off valve 29 . The air conduit 3 is connected to a sterilization temperature and humidity control device (see FIG. 1) consisting of various cyclones. That is, air from the air conduit 3 is drawn into the cyclone 4 through the air conduit 3 connected tangentially around the cyclone 4.

A steam pipe 5 is connected to the cyclone 4, and solid matter such as dust and dirt entrained from the chamber 1 is separated by the cyclone 4 and discharged through a valve 22, thereby purifying the air. Further, if necessary, steam is blown in from the steam pipe 5 to sterilize the air from the chamber 1. Dust and the like are removed by the cyclone 4, purified and sterilized, and the air is sucked out of the cyclone 4 by a fan F through a conduit 3' extending above the cyclone 4 and blown into a cyclone type spray shower cooler 6. The spray shower cooler 6 communicates with the air conduit 3' which communicates with the cyclone 4 in the tangential direction of the circumference, and communicates and fixes a reflux pipe 7 extending upward. A cold water pipe 8 is placed in the area. This cold water pipe 8 is provided with a large number of spray ports 9a, 9b, 9c, . . . , which open into the spray shower cooler 6, and communicate with a cold water tank 10. A large amount of cold water cooled to a predetermined temperature is always stored in the cold water tank 10, and the cold water is sent through the cold water pipe 8 by the pump P and becomes small droplets from the spray ports 9a, 9b, 9c... Sprayed in wrinkles. The air that has entered the spray shower cooler 6 comes into contact with water droplets from the spray ports 9a, 9b, 9c, etc., where heat is quickly and efficiently exchanged, excess water due to cooling is condensed and removed, and insufficient water is humidified. It is saturated at a temperature approximately equal to the cold water temperature, and the reflux pipe 7
Sent from Since particulates such as odors and dust in the chamber 1 are dissolved or suspended in the water from which heat has been taken, the water is passed through the conduit 11 into the strainer 12, filtered, and returned to the cold water tank 10 through the conduit 11. . Therefore, the over-container 12 is a normal over-container,
It is preferable to layer an adsorbent material such as activated carbon, diatomaceous earth, acid clay, or ion-exchange resin in a layered manner. As mentioned above, the air is saturated and humidified at low temperatures.
The air leaving the spray shower cooler 6 is sent through a return pipe 7 to the spray shower cooler 6'. The reflux pipe 7 opens into the spray shower cooler 6' tangentially around its circumference. The spray shower cooler 6' is of similar construction to the spray shower cooler 6, and identical parts are designated by the same numbers, with a prime sign (') appended to the numbers. Since the function of the spray shower cooler 6' is similar to that of the spray shower cooler 6, the explanation thereof will be omitted here. Although only two spray shower coolers are shown in the drawing, several more spray coolers may be sequentially arranged as desired. The cooled and humidified air leaving the last array of spray shower coolers is
Since some droplets are still entrained and damp, the water is completely dehydrated by the second cyclone 13. Therefore, only the dehydrated air with optimal humidity passes through the reflux pipe 2 and enters the chamber 1.
Return to One end of the steam pipe 14 is opened to the cyclone 13, and steam is transferred to the cyclone 21 as needed.
The circulating air can be heated and the chamber 1 and piping can be sterilized via the return pipe 2. Gas discharged from the cooling water cooling compressors 15, 15' passes through condensers 16, 16', passes through an expansion valve (not shown), and cools the water in the cold water tanks 10, 10'. Temperature detector A ₂ , A ₂ and humidity detector B ₁ , B ₂
is installed in room 1. Impurities from the cyclones 13, 21 are discharged through conduits 24, 25.
A temperature sensor C is installed in the cooling water tank 10, 10'.
Provide C′. Temperature detectors A ₁ and A ₂ are electrically coupled to the power of fan F (not shown), and temperature detectors C and C' are electrically coupled to compressors 15 and 15'. The steam pipe 14 is connected to a third cyclone 21, and the third cyclone 21 is configured to remove water droplets from the fresh air and allow only steam to enter the second cyclone 13. That is, the third cyclone 21 is used not only to perform the sterilizing action as described above, but also to heat and humidify with steam when the outside temperature is low. A conduit 20 is further connected to the second cyclone 13, and the conduit 20 is connected to the filter 19.
and to the second cyclone 13 through the heat exchanger 18
New air can be brought in. heat exchanger 18
is a heating device that can be heated indirectly by steam or other heating medium and serves to heat the outside air when the outside air is at a low temperature. for example,
When the outside air temperature is low, around 20°C, new air sterilized at 100°C to 110°C is introduced by the heat exchanger 18 to adjust the temperature.

Further, a conduit 24 with a damper 23 interposed therebetween is connected to the air conduit 3' and the reflux tube 2, thereby forming an air bypass and making it possible to change the circulation path. The structure of the chamber 1 is such that a heatproof wall 28 made of rubber or stainless steel is placed inside, and a water pipe 27 surrounds the wall 28 . Furthermore, the outside of the water pipe 27 is covered with an outer wall 26 made of a heat insulating material.
surround it with Water pipe 27 circulates water at a temperature slightly lower (for example, 2°C) than the temperature inside room 1 when the outside temperature is high, and circulates water at a temperature slightly higher than the temperature inside room 1 when the outside temperature is low. is circulated to configure room 1 into a constant temperature room that is not affected by outside air.

Regarding the operation of the sterilization temperature and humidity control device of this invention,
The compressors 15, 15'... are operated, and the cold water tank 1 is
The water in 0,10'... is lowered to a predetermined temperature. When the water drops to a predetermined temperature, the temperature sensor C,
The switches of the compressors 15, 15', etc. are opened and stopped by the command from C', and when the temperature rises, they are closed and operated to perform ON-OFF control. The thermostatic chamber 1 is closed, and the fan F and pump P are operated. first,
Inject 100℃ steam into chamber 1 to sterilize the interior. Next, dry air at 100°C is introduced to dry the entire chamber 1, and as the circulation continues, it is immediately cooled, and then sterilized air at about 20°C is introduced little by little. Therefore, the air in the room 1 is transferred to the first cyclone 4,
Spray shower cooler 6, 6'..., second cyclone 1
After 3 steps, it is sterilized, purified, and the temperature and humidity are adjusted to the optimum condition.
Reflux into chamber 1. When the temperature in the chamber 1 falls to a predetermined temperature, the temperature detectors A ₁ and A ₂ detect this state and stop the fan F or control the rotation speed of the fan F. In this case, either the fan F is operated as it is, the damper 23 is opened and the damper 23' is closed, and no air is circulated in the chamber 1, or the damper 2
It is also possible to partially bypass the air by opening 3, 23' or by partially closing only the damper 23. Of course, normally the damper 23 is closed and the damper 23' is opened to circulate the air. With this configuration, the interior of the room 1 is always maintained at the optimum temperature and relative humidity.

As a result, the interior of the room 1 can be maintained at a constant temperature and constant humidity, and can be kept clean and sterile at all times.

Since the present invention performs temperature and humidity control after cooling and humidifying to saturated humidity, the temperature and humidity can be adjusted very easily, and a large amount of temperature- and humidity-controlled air can be produced, and it can be used in many rooms at the same time. The temperature and humidity can be controlled. Further, in the present invention, a plurality of chambers is provided with a shutoff valve, and the shutoff valve is opened as necessary so that the temperature and humidity can be controlled only in the desired chamber.

In addition, in the embodiment, the management is not limited to the above-mentioned hospital rooms, but includes management of operating rooms, laboratories,
It is useful for controlling the atmosphere not only in manufacturing rooms for vaccines, but also in a wide range of buildings, etc. Furthermore, by increasing the rotation speed of fan F and pump P, cooling air can be circulated quickly, and stored materials can be stored in a short time. It can also be cooled,
It is also possible to sterilize the interior of the chamber 1 by stopping the pump P and blowing out steam from the steam pipe 14 and transporting it by the circulating air.The indoor air is purified during the circulation, so it becomes clean air. Odors generated are deodorized by cold water, so there is no chance of foul odors accumulating in the room. In addition, since cold and hot water is always stored in the cold water tank 10, it can be used for urgent needs and does not require a particularly large compressor, which not only saves capital investment but also consumes less electricity, and is a closed cycle system. It has many advantages such as less heat loss. Furthermore, since multiple cyclone type spray shower coolers are arranged in sequence, the cyclone can be small and temperature and humidity control can be performed with precision. Further, although a cyclone is used in the embodiment, it is not necessarily limited to using a cyclone, and a filter or the like can also be used.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a sterilization temperature and humidity control device that achieves the method of the present invention, and FIG. 2 is a schematic diagram of a hospital room, etc., where the air is sterilized and the temperature and humidity are controlled to an optimal state by the method of the present invention. A schematic diagram of the chamber is shown. 1... Chamber, 29... Shutoff valve, 30... Air suction conduit, 31... Air delivery conduit. 〓〓〓〓

Claims (1)

[Scope of Claims] 1. In a method for sterilizing the air in a plurality of rooms using a single sterilization temperature/humidity control device and controlling the temperature and humidity to an optimum state, The step of opening the shutoff valves interposed in the air suction pipe and the air delivery pipe of the room to be moistened to enable air circulation and sending out the air, sterilizing the air from the room with steam and removing dust, etc. removing solids; cooling and humidifying the sterilized and purified air in one or more stages to saturated humidity; and converting the cooled and humidified air to saturated humidity into sterilized fresh air. or a step of controlling the temperature and humidity to a desired optimum state using steam; and a step of sending and circulating air whose temperature and humidity have been controlled to the optimum state into the room. A method of sterilizing room air and controlling temperature and humidity.