JPS6232025Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cryogenic air treatment device.

Conventionally, this treatment device injects liquid nitrogen or oxygen together with air, so if the component balance of the injected gas is disrupted, for example, the human body may experience dizziness, headaches, increased blood pressure or difficulty breathing due to excess or lack of nitrogen or oxygen, and acid Not only is there a risk of negative effects such as oxygen deficiency and hyperoxia, but also a risk of fire.
It cannot be used in a closed room and requires a supply device for liquid nitrogen, etc., which results in a more complex structure and higher usage costs.

In addition, in conventional treatment devices, the air inlet pipe and the cooling air outlet pipe were fixed to the air cooling chamber, so when used for a long time, frost formation occurred in the cooling chamber on the outlet pipe side. The problem was that the cooling efficiency decreased.

The present invention was developed to eliminate the above-mentioned defects, and its purpose is to prevent adverse effects on the human body and the occurrence of fires, etc., and also to enable use in closed rooms, and to improve the structure. Simplify and
An object of the present invention is to provide a cryogenic air treatment device capable of eliminating frost formation, increasing cooling efficiency, and reducing operating costs.

Hereinafter, an embodiment embodying the present invention will be described with reference to the drawings. In the drawing, 1 is a conventionally known refrigerant condensing unit, and a motor 3 installed in a machine frame 2.
and a refrigerant compressor 4 operated by the motor 3;
It consists of a refrigerant condenser 5 for condensing high-pressure refrigerant gas discharged from the compressor 4, and a refrigerant receiver 6 for storing the liquid condensed by the condenser 5, and is installed outdoors. be done.

7 is a refrigerant liquid pipe 8 for the refrigerant condensing unit 1.
and a cold air generating unit connected via a refrigerant gas pipe 9, which is installed at a predetermined position indoors.
To explain this cold air generating unit in detail, 10 is a square cylindrical outer case made of a baked steel plate, and a leg piece 11 is provided at the lower end of the outer case. Reference numeral 12 denotes a square box-shaped inner case made of a heat insulating plate 13 made of urethane foam or the like adhesively fixed to the inner surface of the outer case 10, and a dividing plate 14 made of the same material at the center of the case 12 separates the left and right first and It is divided into second cooling chambers 15 and 16. A passage 1 is provided on the top surface of each cooling chamber 15, 16.
7 and 18 are transparently provided, and at the lower end of the partition plate 14 there is a communication passage 19 that communicates both the cooling chambers 15 and 16 with each other.
is transparent.

Reference numerals 20 to 23 denote first to fourth air coolers installed in four stages vertically in both the cooling chambers 15 and 16, and all of them are equipped with a large number of cooling fins 24 as shown in FIG. A plurality of thin tubes 25 are arranged parallel to each other, and a plurality of thin tubes 25 are arranged in parallel to each other.
are formed through the air coolers 20 to 23 in parallel to each other and curved in a zigzag shape.
The capillary tubes 25 are connected to each other as shown in FIG. 26 to 28 are each of the air coolers 20 to 23
An individual drain pan 29 is placed directly below the air cooler 23 at the lowest stage, and a drain pipe 30 passing through the heat insulating plate 13 is provided on the bottom of the drain pan. ing. Note that appropriate spacers 31 are interposed between each of the air coolers 20 to 23 and between each of the air coolers 20 to 23 and the heat insulating plate 13.

Reference numerals 32 and 33 denote a pair of refrigerant liquid switching electromagnetic valves arranged in a space 34 formed between the outer case 10 and the inner case 12, which are introduced into the space 34 and branched into two. It is interposed in the middle of the refrigerant liquid pipe 8, so that the supply of refrigerant liquid can be selectively controlled and both can be opened.
Reference numerals 35 and 36 are refrigerant expansion valves connected to the tips of the refrigerant liquid pipe 8, and are configured to supply refrigerant gas to the thin tube 25 via distributors 37 and 38. Reference numerals 39 and 40 refer to check valves connected to the refrigerant gas pipe 9 which is introduced into the lower side of the space 34 and bifurcated, and whose tip is connected to the lower end of the thin tube 25. This prevents the gas from flowing back into the thin tube 25. Reference numerals 41 and 42 are refrigerant gas pressure equalization pipes having one end connected to the expansion valves 35 and 36 and the other end connected to a branch pipe of the refrigerant gas pipe 9. At this time, gas is prevented from flowing back into the refrigerant liquid pipe 8.

Reference numeral 43 denotes a column erected on the upper surface of the outer case 10, and 44 indicates the positions of an air introduction tube 48 and an air outlet tube 50, which are attached to the column 43 so as to be movable in the vertical direction and rotatable in the horizontal direction. A coil spring 46, which is a switching arm for switching, is interposed between a nut 45 screwed to the upper end of the support column 43.
is urged downward by the passage 1 at both ends.
Attachment rings 47 are fixed to correspond to 7 and 18, respectively. Reference numeral 48 denotes an air introduction pipe that is fitted and joined to one of the mounting rings 47, and is configured to send atmospheric air into the first cooling chamber 15 by a blower B, and a damper 49 for adjusting air volume is provided on one side. It is provided. Reference numeral 50 denotes an air outlet pipe fitted to the other mounting ring 47, which allows the cooling air in the second cooling chamber 16 to be led out.

Reference numeral 51 denotes a blowing direction changing plate disposed horizontally to the upper surface of the first air cooler 20 and corresponding to the passages 17 and 18, respectively, and is connected to the introduction pipe 4.
The air introduced from 8 is deflected in the direction of arrow P in FIG. 2 so that it is almost uniformly supplied to the slits of each cooling fin 24. For the same purpose, each drain pan 26-28 is connected to each air cooler 20-23.
and the drain pans 26 to 28 cooperate to divert the air that has passed through the upper stage cooler in the direction of arrow Q (direction perpendicular to the slits of each cooling fin 24) and almost evenly distribute it into the slits of the cooling fins. supply is becoming available.

Next, the operation of the cryogenic air treatment device configured as described above will be explained.

Now, when the refrigerant liquid condensing unit 1 shown in FIG. The gas is expanded and vaporized, which is then supplied into the several capillary tubes 25 via distributors 37 and 38, whereby each capillary tube 25 is cooled to an extremely low temperature of, for example, -30 to 65 degrees Celsius.
The refrigerant gas that has finished moving through the thin tube 25 is sent to the refrigerant gas pipe 9, where it is again liquefied by the condensing unit 1 and supplied to the cold air generation unit 7.

On the other hand, the blower B provided in the air introduction pipe 48
When the air is operated to send air into the first cooling chamber 15, it is cooled to some extent while passing through the slits of the cooling fins 24 of the first air cooler 20, and then moved to the next second air cooler 21. The air that is further cooled here and thereafter similarly cooled by the fourth air cooler 23 is guided from the communication passage 19 to the second cooling chamber 16, and in this chamber, the fourth to first air It is sequentially cooled by the coolers 23 to 20, and the negative
The air is cooled to around 50 degrees and flows into the air outlet pipe 50.
Then, this ultra-low temperature air is passed through a nozzle (not shown) provided at the tip of the air outlet pipe 50 to the human hand, foot, etc.
When sprayed on various areas such as the back and hips for a certain period of time, it is effective in treating bruises, scoliosis, back stiffness, rheumatoid arthritis, etc.

When the above-mentioned treatment is continued for a long time, the temperature of the coolers 20 to 23 on the second cooling chamber 16 side is lower than that of the first to fourth air coolers 20 to 23 on the first cooling chamber 15 side. Therefore, a frost phenomenon occurs on the second cooling chamber 16 side, and the cooling efficiency decreases. At this time, the switching arm 44 is slightly raised and rotated 180 degrees together with the air inlet pipe 48 and the outlet pipe 50 against the elasticity of the spring 46, and the air inlet pipe 48 is connected to the second cooling chamber.
6, and the air outlet pipe 50 is connected to the first passage 18.
After matching the passage 17 of the cooling chamber 15, the cold air is injected again. As a result, the frost on the second cooling chamber 16 side is thawed, and the cooling efficiency is increased.
At the time of this switching, the first and second cooling chambers 15, 1
6, the temperature in the second cooling chamber 16 suddenly increases, and as a result, the refrigerant gas in the thin tube 25 rapidly expands and tries to flow back into the refrigerant liquid tube 8, but this refrigerant gas Since the refrigerant flows to the refrigerant gas pipe 9 side through the pressure equalization pipe 42 and returns to the refrigerant compressor 4, the above-mentioned backflow is prevented.

In the above embodiment, the heat insulating case consisting of the outer case 10 and the inner case 12 was used vertically, but it may also be used horizontally as shown in FIG.

In this way, this invention can only reduce air by -30~
Since the treatment is performed by cooling the temperature to 65 degrees and irradiating each part of the human body, there is less negative impact on the human body and the occurrence of fires, compared to conventional treatment devices that add liquid nitrogen or oxygen. This has the effect of not only being able to prevent this, but also allowing use in a closed room, and further simplifying the structure and reducing usage costs.

In addition, the present invention makes it possible to switch the positions of the inlet pipe and the outlet pipe, which eliminates frost formation within the cooling chamber, increases cooling efficiency, and reduces usage costs from this point of view as well. There is.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view showing an embodiment of the present invention;
Figure 2 is a side sectional view of the cold air generation unit, Figure 3 is a front sectional view, and Figure 4 is a perspective view of the air cooler.
FIG. 5 is a schematic front view showing another example. Refrigerant condensing unit 1, cold air generation unit 7, refrigerant liquid pipe 8, refrigerant gas pipe 9, outer case 10, inner case 12, partition plate 14, first cooling chamber 15, second
Cooling chamber 16, passages 17 to 19, first to fourth air coolers 20 to 23, cooling fins 24, thin tubes 25,
Refrigerant expansion valves 35, 36, switching arm 44, spring 46, air inlet pipe 48, air outlet pipe 50.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. Consists of a refrigerant condensing unit and a cold air generation unit, and the cold air generation unit includes an insulating case forming a cooling chamber, and an air cooler installed in the case for cooling the air. , an introduction pipe connected to one of two passages provided through the heat insulating case corresponding to both ends of the cooling chamber and introducing air into the cooling chamber; and an introduction pipe connected to the other passage. and an outlet pipe for leading out the cooled air from the cooling chamber and injecting it to the human body, and a switching mechanism for switching the positions of the two pipes between the heat insulating case and the inlet pipe and the outlet pipe. A cryogenic wind treatment device characterized by being provided with. 2 A pair of first and second cooling chambers that communicate with each other at the bottom are formed inside the heat insulating case, and two passages are formed in the heat insulating case that communicate with the ends of the two cooling chambers, respectively. , the switching mechanism is supported so as to be liftable and reversible by 180 degrees with respect to the passage forming surface of the heat insulating case, and further includes a switching arm urged toward the passage forming surface by a spring, and a switching arm at both ends of the switching arm. On the other hand, the cryogenic air treatment device according to claim 1, which is formed by attachment rings that are fixed in correspondence with the two passages and that can fit and fix the introduction pipe and the outlet pipe. . 3. The air cooler is formed by a large number of cooling fins arranged in parallel with each other and a plurality of thin tubes passing through them in a zigzag shape, and a plurality of the coolers are stacked in the cooling chamber, and each air cooling Request for registration of a utility model in which a baffle plate is interposed between the cooling fins and has the function of changing the flow of air in a direction perpendicular to the slits of the cooling fins to uniformly supply air to each of the slits. The cryogenic wind treatment device according to item 1. 4 A refrigerant liquid pipe for sending refrigerant liquid from a refrigerant condensing unit is branched and connected to the air cooler housed in the first and second cooling chambers, and a solenoid valve for refrigerant liquid switching is installed in the branch pipe part. and a refrigerant expansion valve are respectively connected to the refrigerant expansion valve, and a pressure equalizing pipe is connected to the refrigerant expansion valve for sending refrigerant gas to the refrigerant gas pipe when the internal pressure of the thin tube of the air cooler suddenly increases. The cryogenic air treatment device according to item 2. 5. The air cooler is designed to be cooled to minus 30 to 60 degrees.Claim 1 of the utility model registration claim
The cryogenic air treatment device described in Section 1. 6. The cryogenic air treatment device according to claim 4, wherein the refrigerant gas pipe has a check valve for preventing backflow into the thin pipe.