JPS6135452B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for sterilizing indoor air such as a hospital room and controlling temperature and humidity to an optimum state.

In particular, the present invention provides a method for sterilizing the air in a room such as a hospital room and controlling the temperature and humidity to a predetermined optimum state, in which the air drawn out from the room is sterilized with steam and solids such as garbage are removed. cooling and humidifying the sterilized and purified air in one or more stages to saturated humidity, and further adding sterile fresh air or steam to the cooled and humidified air to saturated humidity. Circulating the air in a room characterized by the steps of: adjusting the temperature and humidity to a desired optimum state; and sending and circulating the air whose temperature and humidity have been adjusted to the optimum state into the room. This invention relates to a method for sterilizing and controlling temperature and humidity.

Hereinafter, a sterilization temperature and humidity control device that can accomplish the method of the present invention will be described with reference to the drawings. Although one room is shown in the drawing, it is possible to sterilize and control the temperature and humidity of a desired number of rooms. Further, it is preferable that the room is configured as a constant temperature room, and an example of the constant temperature room is that the room is surrounded by pipes, the outside is covered with an outer wall made of a heat insulating material, and the temperature is controlled using a heat exchanger in the pipes. Circulate water to control the temperature of the room.

In the figure, arrows indicate the direction of fluid flow. Number 1 generally indicates a room such as a hospital room, and air in the room 1 is sucked into the cyclone 4 through an air conduit 3 connected tangentially around the cyclone 4. A steam pipe 5 is connected to the cyclone 4, and a steam pipe 5 is connected to the cyclone 4.
The entrained solids such as dust and dirt are separated by the cyclone 4 and discharged through the 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. Air that has been purified and sterilized by removing dust and the like by the cyclone 4 is sucked out from the cyclone 4 by a fan F through a conduit 3' extending above the cyclone 4, and is 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 connects and fixes a reflux pipe 7 extending upward. 〓
A cold water pipe 8 is arranged around 7. This cold water pipe 8 is provided with a large number of spray ports 9a, 9b, 9c, . . . , which are opened into the spray shower cooler 6.
It communicates with 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 to the cold water pipe 8 by the pump P and becomes small droplets from the spray ports 9a, 9b, 9c, . . . It is sprayed in wrinkles. The air that has entered the spray shower cooling 6 comes into contact with water droplets from the spray ports 9a, 9b, 9c,..., and is rapidly and efficiently exchanged heat, and by cooling, excess moisture is condensed and removed, and insufficient moisture 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 passes through the conduit 11, enters the strainer 12, is filtered, and is 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 saturated 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 sterilized through the reflux pipe 2 to the chamber 1 and the piping. Gas discharged from the cooling water cooling compressors 15, 15' passes through condensers 16, 16' and an expansion valve (not shown) to cool the water in the cold water tanks 10, 10'. Temperature detector A ₁ , 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.
Fresh air can be fed into the second cyclone 13 through the heat exchanger 18 and the heat exchanger 18 . 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 temperature is low, around 20℃, the heat exchanger 18
Adjust the temperature by introducing sterile fresh air to 100°C to 110°C.

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. Chamber 1 is closed, and fan F and pump P are operated. First, 100
℃ steam is introduced into chamber 1 to sterilize the chamber. next,
〓〓〓〓
Dry the entire chamber 1 by introducing dry air at 100℃.
If the circulation continues, it will immediately cool down, and sterilized air at around 20°C will continue to be pumped in little by little. Therefore, the air in the room 1 passes through the first cyclone 4, the spray shower coolers 6, 6', . 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 dampers 23 and 2 are closed.
It is also possible to partially bypass the air by opening 3' or partially closing 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 room is always kept at the optimum temperature and relative humidity.

As described above, the present invention has the excellent effect of maintaining a room at a constant temperature and humidity, and keeping it clean and sterile at all times.

In addition, in the embodiment, the temperature and humidity are controlled by the cyclone 13 after being cooled and humidified to the saturated temperature, so that the temperature and humidity can be adjusted very easily. Without limitation, it is useful for controlling the atmosphere in a wide range of rooms such as buildings, as well as operating rooms, laboratories, vaccine production rooms, etc., and furthermore, it increases the rotational speed of the fan F and pump P. It is possible to quickly circulate the cooling air to cool the stored items in a short time, and 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. Since the air is purified during circulation, it becomes clean air, and odors generated in the room are deodorized by cold water, so there is no accumulation of abnormal odors 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 apparatus of the embodiment, it is not necessarily limited to the use of a cyclone, and a filter or the like may be used instead of the cyclone.

[Brief explanation of the drawing]

The drawings show a schematic diagram of a sterilization temperature and humidity control device that accomplishes the method of the invention. 1...room. 〓〓〓〓

Claims (1)

[Scope of Claims] 1. In a method for sterilizing the air in a room such as a hospital room and controlling the temperature and humidity to a predetermined optimum state, the air discharged from the room is sterilized with steam and solids such as garbage are removed. a step of cooling and humidifying the sterilized and purified air in one or more stages to saturated humidity, and then converting the cooled and humidified air to saturated humidity into sterilized fresh air or steam. controlling the temperature and humidity of the room to a desired optimum state; and supplying and circulating the air whose temperature and humidity have been controlled to the optimum state into the room. A method of circulating, sterilizing, and controlling temperature and humidity.