JPS59122855A - Pressure reduced and balanced frictional heat generating device - Google Patents

Abstract

PURPOSE:To improve the operating and drying efficiencies of the titled device by a method wherein a pressure reduced and balanced frictional heat generating mechanism is provided within a hollow chamber, a hollow chamber circulation mechanism is divided into two passages and a heat storage material is arranged in one of the passages. CONSTITUTION:The pressure reduced and balanced frictional heat generating mechanism 2 comprising rotary members 3, 3' and 3'' each provided with rotary vanes and substantially circular air intake cylinders 4, 4' and 4'' in which the rotary members 3, 3' and 3'' are arranged therein is provided within the hollow chamber 1. Further, the hollow chamber circulation mechanism 8 for making the upper part and the lower part of the hollow chamber is divided into two passages 9 and 9' which can be selected by a valve 10 and the heat storage material 11 is arranged in the passage 9. With the above structure, it is possible to utilize water contained in a drying substance as a kind of heat storage material to thereby prevent a rapid temperature change and to perform continuously a smooth heating operation suitable for drying, to thereby improve the operating and drying efficiencies of the device.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a reduced pressure equilibrium friction heat generation device having a reduced pressure equilibrium friction heat generation mechanism and a heat exchange mechanism.

Regarding the reduced pressure equilibrium heating device, the present inventor has already filed a patent application in 1983.
-94630, patent application No. 1983-94631, patent application No. 1973
No. 5-132066, Special Application No. 132065-1980, Special Application No. 1987! No. 56-29953 or % Application No. 56-14244
The basic technology and its applied technology were proposed in No. 0 or Japanese Patent Application No. 57-64941.

′ That is, the conventional drying trap for drying material in the grain pressure hollow chamber is
From a hollow chamber with a decompression equilibrium friction heat generation mechanism that does not require a special heat source In other words, the air in a sealed hollow chamber is forcibly sucked in by the rotation of a rotating body and exhausted to the outside, reducing the pressure in the room and keeping the pressure difference between the inside and outside in a substantially constant equilibrium state. At the same time, while maintaining this equilibrium state, the rotating action of the rotating body is continued to promote frictional action with the air and generate frictional heat, and this frictional heat heats the inside of the hollow chamber and is used as heat. Furthermore, we have proposed an apparatus and method for drying materials in a hollow chamber by manually or automatically feeding outside air into the hollow chamber as needed. On the other hand, the outside air intake action and the exhaust action work in opposite directions within the same heat exchange mechanism, and the amount of heat possessed by the high temperature gas in the exhaust process is absorbed by the low temperature gas in the intake process, resulting in almost complete Japanese Patent Application No. 57-64941 was proposed as a depressurized equilibrium friction heat generating device having a heat exchange mechanism for the purpose of performing heat exchange, almost eliminating heat loss, and preventing a drop in temperature within a hollow chamber. .

The inventor of further pressure has discovered a reduced pressure equilibrium friction heat generation mechanism. In general, drying of mushrooms such as shiitake mushrooms does not require extremely high temperatures; in fact, when high temperatures are applied, the surface remains deformed and internal moisture remains, resulting in incomplete drying, so natural drying is used. However, natural drying has the disadvantage that the physiological effects and nutrients of the plant are lost. By the way, since the reduced pressure equilibrium friction heat generating device has good efficiency, it is easy to obtain high temperature quickly and tends to overheat, but in order to obtain a good quality dry product, K often interrupts the rotation of the rotating body to prevent overheating. It is necessary to install a separate FC, which has the drawback of reducing operating efficiency.In addition, when drying the material to be dried, not only the material to be dried but also the material to be dried that is discharged into the room during the drying process. moisture content,
This also heats the water vapor contained in the moisture discharged into the room and the indoor gas.However, since water has a high specific heat, the amount of heat required to heat it up to the same temperature is 1.0 compared to other substances. There is a large ↑, but conversely, the amount of heat it contains when heated to the same temperature is large. On the other hand, frictional heat generation 4! ! When multiple willow rotating bodies are installed in series, near the rotating bodies on the exhaust side t
However, the conventional reduced pressure equilibrium frictional heat heating device f, which has a reduced pressure equilibrium frictional heat generation mechanism and a heat exchange mechanism, is unable to effectively utilize the indoor gas containing moisture discharged from the material to be dried. Since the indoor gas was not used and was exhausted to the outside pressure only once after exchanging heat with the gas introduced into the room, conventional methods and equipment do not have much efficiency in operation.
It had the disadvantage of poor drying efficiency. This invention is based on these findings.In other words, this invention forcibly suctions the gas inside the hollow chamber by the rotational action of a rotating body and exhausts it outside, thereby reducing the pressure inside the chamber. The pressure difference between the indoor and outdoor areas is kept in a substantially constant equilibrium state, and while this equilibrium state is maintained, the rotating action of the rotating body is continued to promote frictional action with the gas to generate frictional heat, and this friction The hollow chamber circulation mechanism and the vacuum equilibrium friction heat generation mechanism have a vacuum equilibrium friction heat generation mechanism that heats the inside of the hollow chamber to reduce pressure and heat the processed material in the hollow chamber, and a hollow chamber circulation mechanism having a plurality of passages. It is characterized by integrally incorporating the exhaust side of 1 to form a heat exchange mechanism, and allowing gas to selectively pass through the plurality of passages of the hollow chamber circulation mechanism, and then installing a heat storage material at - in the passage. It is an object of the present invention to eliminate the above-mentioned drawbacks by providing a reduced-pressure equilibrium frictional heat generating device, which has high operating efficiency and good drying efficiency.

The present invention will now be described with reference to FIG. 1, which is a central cross-sectional view of an embodiment. (1) is a hollow chamber and is formed in a sealed state except for the necessary ventilation points. (2) is a reduced pressure equilibrium frictional heat generation mechanism f installed inside the hollow chamber (1), and this Example 1 is a rotating body (3) (3)'(3) with rotating blades.
' and a rotating body (3) (3)'(3)' A substantially cylindrical intake cylinder (4) (4)' (4f) that is stacked vertically in three stages in series.A rotating body The number of intake cylinders can be arbitrarily selected from 14.Rotating body (3) (3)'(3
) can be rotated by the motor (5) in the suction and exhaust direction of the air or other gas in the hollow chamber (1). The proposed driven rotation mechanism may also be installed.

That is, the driven fan (7) is pivotally supported at a position opposite to and appropriately separated from the upper part of the rotating body (3), and the opposing rotating body (3)
There is a mechanism 14 which is rotatable according to the rotation of. When such a mechanism is installed, the gas in the hollow chamber (1) can be diffused and flown, making it possible to generate a uniform airflow inside the hollow chamber (1).
It is possible to accelerate the drying action and contribute to the temperature rise. Frictional heat generating portions A and A'lA' are formed in each rotating region of the rotating bodies (3), (3)', and (3)'.

(8) is a hollow chamber circulation mechanism, which connects the upper and lower parts of the hollow chamber (1), and has a circulation fan in the lower part that can be rotated by a motor Q11. The hollow chamber circulation mechanism (8) integrally incorporates the exhaust side of the friction heat generation mechanism (2) in the middle thereof to form a heat exchange mechanism a0. There are also two hollow chamber circulation mechanisms (8) on the way.

The passage (91, (divided into 9), and the passage can be selected by the action of a valve and a lock.One passage is filled with a heat storage material (111) using a material with a large specific heat, in this example water.
Set up. In this embodiment f, thin synthetic resin pipes are stacked to store water! Let's do it. 051
It is possible to supply outdoor gas according to the desired amount installed inside the hollow chamber. In this embodiment, the outside air introduction pipe ae passes through the exhaust side of the depressurization equilibrium friction heat generation mechanism (2) on the way to communicate with the outside of the hollow chamber, so that it has a so-called heat exchange mechanism I' shown in Japanese Patent Application No. 57-64991. .

There, when the motor (5) is energized and the rotating bodies (3), (3)', (3)' having blades are rotated once, the air or other gas in the sealed hollow chamber (1) is pulled into the cloud. The Q-hikake-kago to the island (1) is a rotating body (3), (3)', (3
Due to the suction and exhaust action of f, the pressure is gradually evacuated in the direction of arrow B, and the pressure is reduced, and the pressure difference between the interior and exterior of the hollow chamber (1) gradually increases, but when the pressure difference reaches this pressure difference, an almost equilibrium state is reached, and this equilibrium state maintain. In this equilibrium state, the pressure difference between the inside and outside of the hollow chamber (1) is the pressure difference between the rotating bodies (3) and (3).
'.

(3) The magnitude of the rotational suction force and the intake cylinder (4),
(4)', (4)'' diameter and rotating body (3), (3)1.
<s> This equilibrium state is determined by the size of the gap with I, etc., but this equilibrium state is maintained as long as the rotational action of the rotating bodies (3), (3, etc., (3)" continues. This equilibrium state 1 is determined by the rotation Air stagnation occurs in the frictional heat generating part in the rotation area of the body (3), and the frictional action with the rotating body (31, (31', (3)') continues to repeat, so frictional heat is generated. The temperature gradually rises.

This frictional heat is transmitted into the hollow chamber (1) and heats the interior to the desired temperature. The temperature is lower in the vicinity of the rotating body (3)', which is the highest temperature, and in the vicinity of the rotating body (3).

Gases such as air in the hollow chamber are circulated in the direction of arrow C by the hollow chamber circulation mechanism (8), but on the way, a heat exchange mechanism α is formed integrally with the exhaust side of the friction heat generation mechanism (2), so exhaust heat is absorbed. The gas that has exchanged heat with the hollow chamber (1) is introduced into the hollow chamber (1). In this case, use the passage (91') that does not have a heat storage state.The gas in the hollow chamber circulation mechanism (8) that exchanges heat contains a lot of moisture and has a higher specific heat than the same dry gas. Therefore, it is possible to avoid a sudden change in the temperature of the gas in the hollow chamber (1) even though the amount of heat absorbed during heat exchange becomes large.

When the hollow chamber becomes overheated, the hollow chamber circulator 5 (8
) is passed through the passageway (9) having a heat storage material.
Since water, which is introduced by switching fiQ, has a high specific heat, it is possible to prevent a rise in temperature compared to other materials in terms of the rate of heat absorption. If the temperature rises further, the operation of the friction heat generation mechanism (2) is stopped and the heat stored in the heat storage material is introduced into the hollow chamber (1) by the hollow chamber circulation mechanism (8). ), the friction heat generating mechanism (2) restarts operation to heat the inside of the hollow chamber (1).

Depending on the temperature inside the hollow chamber (1), one passage (91, (9)
1' switching.

Operates and stops the friction heat generation mechanism. In addition, if the hollow chamber (1) becomes overhumidified, the outside air introduction pipe Qf
Dehumidification is performed by introducing outside air from 9. This refreshing example receiver has an outside air introduction pipe (IQ has a heat exchanger 111 (14)'), so the outside air introduced is preheated.

Exhaust heat can be made useful. Therefore, this invention utilizes the moisture contained in the dried material as a kind of heat storage material, making it possible to prevent sudden temperature changes and to continuously perform smooth heating suitable for drying, thereby improving operational efficiency and drying. Efficiency will improve

[Brief explanation of drawings]

FIG. 1 shows a central cross-sectional view of an embodiment of the invention. (1)...Hollow chamber, (2)...Frictional heat generation mechanism, (
3) , (31'. (3f... rotating body, (4) , (4)' , (
4f...Intake cylinder, (5)...Motor, (6)...
Driven rotation mechanism, (7)... Driven fan, (8)...
Hollow chamber circulation mechanism, (9) 4 <91'... passage,
4... Valve, I... Heat storage material, α2... Motor, a3
...Circulation fan, Q4), (11'...Heat exchange mechanism, a9...Armor room, bottle, housing e...Outside air introduction pipe. αη...Nocelzo Figure 1

Claims (1)

[Scope of Claims] (1) The gas in the hollow chamber is forcibly suctioned by the rotating action of a rotating body and exhausted to the outside, and the pressure inside the chamber is reduced to keep the pressure difference between the inside and outside in a substantially constant equilibrium state, While maintaining this equilibrium state, the rotating action of the rotating body is continued to promote frictional action with the gas to generate frictional heat, and this frictional heat heats the inside of the hollow chamber to cool the processing material inside the hollow chamber. A heat exchange mechanism is formed by integrating a reduced pressure equilibrium friction heat generation mechanism for heating under reduced pressure and a hollow chamber circulation mechanism having a plurality of passages, and integrating the hollow chamber circulation mechanism and the exhaust side of the reduced pressure equilibrium friction heat generation mechanism. In addition, a reduced pressure equilibrium friction heat generating device is characterized in that one passage is selectively allowed to pass through a plurality of passages of the hollow chamber circulation mechanism, and a heat storage material is installed in one passage. (2) The reduced pressure balanced friction heat generating device according to claim 1, wherein the reduced pressure balanced friction heat generating mechanism comprises a multi-stage rotating body. (3) The depressurized equilibrium frictional heat generating device according to claim 2, in which the multi-stage rotary body is in a hollow chamber; (4) the device according to claim 1, in which the heat storage material is made of a material with high specific heat. is the reduced pressure equilibrium friction heat generating device according to item 2 or 3. (5) The reduced pressure equilibrium friction heat generating device according to claim 1, 2 or 3, wherein the heat storage material is water.