JPS6114425B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for very easily supplying sterile temperature-controlled and humidity-controlled air into a room such as a hospital room.

In particular, the present invention provides a method for controlling the temperature and humidity of indoor air such as a hospital room, which involves cooling sterilized and purified air in one or more steps, humidifying it to saturated humidity, cooling it, and conditioning the air humidified to saturated humidity with sterilized fresh air or steam to a desired optimum condition, and circulating the optimum temperature and humidity conditioned air through a bypass; The present invention relates to a method for supplying sterile temperature-controlled and humidity-controlled air, which comprises the steps of: supplying part or all of this circulating sterile temperature- and humidity-controlled air into a room.

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 indicates a room such as a hospital room as a whole, and the air in the room 1 is either exhausted to the outside from an upper exhaust pipe E or passed through an air conduit 3 connected tangentially around the cyclone 4 to the cyclone 4. be sucked into. When indoor air is exhausted, fresh air is taken in from the fresh air introduction pipe A. Cyclone 4 has steam pipe 5
are connected to each other, and solid matter such as dust and dirt entrained from the chamber 1 or the outside world is separated by a cyclone 4 and exhausted through a valve 22, thereby purifying the air. Further, if necessary, steam is blown in from the steam pipe 5 for sterilization. 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 passes through an air conduit 3' that communicates with the cyclone 4 in the tangential direction of the surroundings, and connects and fixes a reflux pipe 7 extending upward. A tube 8 is arranged. This cold water pipe 8 has many spray ports 9a, 9b,
9c... are provided, and these spray ports are opened into the spray shower cooler 6, and the cold water pipe 8
is in communication with the cold water tank 10. cold water tank 1
A large amount of cold water cooled to a predetermined temperature is always stored in the 0, and the cold water is sent to the cold water pipe 8 by the pump P, and the spray ports 9a, 9b, 9c... are turned into small droplets and showered. It is sprayed in a shape. The air that has entered the spray shower cooler 6 passes through the spray ports 9a, 9b, 9c.
... Contact with small droplets of water, heat is exchanged quickly and efficiently, excess water due to cooling is condensed and deprived of water, insufficient water is humidified, saturated at a temperature approximately equal to the cold water temperature, and sent out from the reflux pipe 7. be done. Since particulates such as odors and dust are dissolved or suspended in the water that has been deprived of heat, the water is passed through the conduit 11 into the strainer 12, filtered, and passed through the conduit 11 into the cold water tank 10.
will be returned to. Therefore, it is preferable that the filter 12 is a normal filter made by layering an adsorbent material such as activated carbon, diatomaceous earth, acid clay, or ion exchange resin. 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' has the same structure as the spray shower cooler 6,
Parts that are the same as that part are designated by the same number, and the number is indicated with a prime sign ('). 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 spray shower cooler arranged at the end is still humid with some splashes, so it is completely dehydrated by the second cyclone 13. Therefore,
Only the dehydrated air with saturated humidity is sent to the reflux tube 2. One end of the steam pipe 14 is opened to the cyclone 13, steam is blown in through the cyclone 21 as needed, the circulating air is heated, and the chamber 1 and piping can be sterilized through the reflux pipe 2. can.
The gas coming out of the cooling water cooling compressor 15, 15' passes through the condenser 16, 16', and then an expansion valve (not shown).
The water in the cold water tanks 10, 10' is cooled through the cooling water tank 10, 10'. Temperature detectors A ₁ , A ₂ and humidity detectors B ₁ , B ₂ are installed in room 1. Impurities from the cyclones 13, 21 are discharged through conduits 24, 25. Temperature detectors C and C' are provided in the cooling water tanks 10 and 10'. Temperature detectors A ₁ and A ₂ are electrically coupled to the power of fan F (not shown), and temperature detectors C,
C' is electrically coupled to compressors 15, 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. The second cyclone 13 is further connected to a conduit 20 which can feed fresh air into the second cyclone 13 through a filter 19 and a heat exchanger 18. The 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°C, the heat exchanger 18
Adjust the temperature by introducing sterile fresh air to 100°C to 110°C.

Furthermore, a conduit 24 with a damper 23 interposed therebetween is connected to the air conduit 3' and the reflux pipe 2, forming an air bypass and providing a circulation path, so that a large amount of sterilized temperature-controlled and humidity-controlled air is constantly circulated to the reflux pipe 2. I'll do what I do. Part or all of the sterilized temperature-controlled and humidity-controlled air circulating here can be appropriately supplied into the room 1. The structure of chamber 1 is such that a moisture-proof wall 28 made of rubber or stainless steel is placed inside, and a water pipe 27 is placed around it.
Surround with Furthermore, the outside of the water pipe 27 is covered with an outer wall 2 made of a heat insulating material.
Surround with 6. When the outside air temperature is high, the water pipe 27 has a temperature slightly higher than the inside temperature of the room 1 (for example, 2°C).
Water at a low temperature is circulated, and when the outside air temperature is low, water at a temperature slightly higher than the temperature inside the room 1 is circulated, so that the room 1 is configured as a constant temperature room that is not affected by the outside air. The sterilized temperature-controlled and humidity-controlled air sent to the room 1 is exhausted outside the room 1 for a certain period of time, or is used after being circulated.

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 operated.
0,10'... lower the water 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. The air is supplied to the first cyclone 4, the spray shower cooler 6,
6'..., sterilization and purification through the second cyclone 13,
The temperature and humidity are controlled to the optimum condition, and through the damper 23,
Through conduit 24, there is a constant bypass flow. When the temperature in room 1 falls to a predetermined temperature, the temperature detector
A ₁ and A ₂ detect this state and fully open the damper 23, so that almost no air is supplied to the chamber 1 while the fan F continues to operate.

Also, if there is a temperature in the room, the temperature detector A ₁ ,
A ₂ detects this and slightly closes the damper 23 to increase the amount of air sent into the chamber 1. In this way, fan F can be operated at full capacity and the amount of air supplied can be finely adjusted without reducing the centrifugal function of the cyclone, so that the temperature and relative humidity in chamber 1 are always at the optimum level. is maintained.

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.

The present invention can control the amount of temperature-controlled and humidity-controlled air sent to a room by circulating the temperature- and humidity-controlled air through a bypass, making it extremely easy to control the temperature and humidity of the room. be. That is, in the present invention, once the air humidification and heating device starts operating,
Even if the temperature in the room has dropped too much, stopping the humidifying/warming device is not desirable as it may cause a temperature change. Therefore, if you leave the humidifying and heating device running as is, and when the room temperature drops too much, open the damper and circulate a large amount of temperature-controlled and humidified air using the bypass, so that very little of it is circulated into the room. The temperature of the room will be easily controlled.

The present invention is not limited to the management of rooms such as hospital rooms, but can be used not only in operating rooms, laboratories, and vaccine production rooms, but also in controlling the atmosphere in a wide range of rooms, such as buildings.

[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... Chamber, 4... Cyclone, 6... Spray shower cooler, 13... Second cyclone, 21... Third cyclone.

Claims (1)

[Claims] 1. In a method for controlling the temperature and humidity of indoor air such as a hospital room, sterilized and purified air is cooled in one or more steps, humidified to saturated humidity, and cooled. and conditioning the humidified stage to saturated humidity to a desired optimum condition with sterilized fresh air or steam, and circulating the optimum temperature and humidity conditioned air through a bypass; A method for supplying sterile temperature-controlled and humidity-controlled air, comprising the following steps: 1. A method for supplying sterile, temperature- and humidity-controlled air, comprising the steps of: supplying part or all of this circulating sterile, temperature- and humidity-controlled air into a room.