JPS6116479B2 - - Google Patents

Description

[Detailed description of the invention]

(a) Industrial Application Field The present invention relates to a heating unit that can be used in a dryer such as a futon dryer that dries by continuously supplying warm air. (b) Prior Art A conventional dryer using a heat-generating unit, such as a futon dryer, consists of a heating section that uses electrical resistance, such as a nichrome wire, and a blowing section, such as a fan. However, heating using electrical resistance is inefficient and requires separate mechanisms for heating and blowing air, which has the disadvantage of requiring a large number of parts. On the other hand, the present inventor has published Japanese Patent Application Laid-Open No. 57-19582
No.), Japanese Patent Publication No. 57-19583 (No. 60-222264)
No.), Japanese Patent Publication No. 57-55378 (Special Publication No. 59-52342)
and Japanese Patent Publication No. 57-55379 (Special Publication No. 59-52753)
In a series of subsequent inventions, such as a reduced pressure equilibrium heating method and a drying method or apparatus using the method, etc. were proposed. The basic technology is that the air inside a sealed hollow chamber is forcibly sucked in by the rotating action of a rotating body and exhausted to the outside, reducing the pressure inside the room and keeping the pressure difference between the inside and outside at an almost constant equilibrium. and maintaining this equilibrium state, the rotating action of the rotating body is continued to promote frictional action with the air to generate frictional heat, and this frictional heat heats the inside of the hollow chamber. This method also uses the rotating action of a rotating body to forcibly suck the air inside a sealed hollow chamber and exhaust it outside the room, reducing the pressure in the room and keeping the pressure difference between the inside and outside in a nearly constant equilibrium state. The rotary body continues to rotate while maintaining an equilibrium state to promote friction with the air to generate frictional heat, which heats the inside of the hollow chamber. This is a reduced pressure equilibrium heating method in which outside air is supplied. The inventor also proposed a pressurized equilibrium heating method in Japanese Patent Application Laid-open No. 57-127779, and found that if an exhaust port with a capacity lower than the exhaust capacity of the rotating body is provided for exhaust, the intake gas will be forced to be discharged to the outside. It was also discovered that the compressor exhibits a kind of pressurizing effect, and therefore generates heat of compression, increasing the temperature more effectively and producing warm air. (c) Problems to be solved by the invention On the other hand, the inventor has disclosed in Japanese Patent Application Laid-Open No. 60-20059 "Hot Air Method and Apparatus" that the invention has a gas inlet and a gas outlet, We proposed a method to create multiple hot air continuously by sequentially connecting the gas outlet and gas inlet of each hollow body with an airtight structure that has a rotating body that rotates with a gas suction capacity greater than the intake amount. did. Further, in the same application, a plurality of rotating bodies having a gas inlet and a gas exhausting capacity larger than the gas inlet and the gas exhausting capacity of the gas inlet and the gas exhausting capacity of the gas inlet and the gas outlet, respectively, are arranged in a hollow body of an airtight structure having a gas inlet and a gas outlet. We proposed a method of creating hot air by connecting hollow bodies in sequence by sequentially connecting the gas outlet and gas inlet of each hollow body. In the same method, even if the capacity of the other rotating bodies is lower than the capacity of the rotating body closest to the intake side, the hot air production capacity of the entire device is still higher than when rotating bodies of the same capacity are used. I also found that there was no difference. In addition, when three or more such hollow chambers are connected in succession, even if the capacity of the rotating bodies is lowered sequentially from the intake side, the hot air generation capacity of the entire device will be lower than when the capacities of all the rotating bodies are the same. I also found that there was no difference. (d) Means for Solving the Problems Based on these findings, it is an object of the present invention to provide an efficient heat generating unit that consumes less power, etc., and has a small number of parts. That is, the present invention provides a heating unit having an intake port and an exhaust port, which rotates with a gas suction capacity greater than the gas suction capacity of the gas intake port, and generates heat due to the rotational action of a rotating body. A hollow body with an airtight structure having a rotating body,
By sequentially connecting the gas outlet and gas inlet of each hollow body, multiple units can be installed between the intake and exhaust ports of the heating unit, and the gas suction capacity of the rotary body of the multiple hollow bodies can be adjusted to the most inlet side. In a heating unit characterized by a rotating body being the largest, and in a heating unit having an intake port and an exhaust port, the heating unit has a gas intake port and a gas exhaust port, and the gas suction capacity of the gas intake port and the gas exhaust A hollow body having an airtight structure and having a rotating body that rotates with a gas suction and discharge capacity greater than the gas discharge capacity of the outlet and generates heat due to the rotational action of the rotary body, and sequentially connects the gas outlet and gas inlet of each hollow body. A heat generating unit characterized in that a plurality of hollow rotary bodies are installed between the intake port and the exhaust port of the heat generating unit, and the gas suction and discharge capacity of the plurality of hollow rotary bodies is the largest in the rotary body on the intake side. I will provide a. (e) Effect When the rotating body is rotated, gas flows into the hollow body through the intake port or gas inlet. At this time,
The opening area of the gas inlet is limited to less than the gas suction capacity of the rotating body installed in the corresponding hollow body, so the amount of gas inhaled is smaller than the gas exhausted by the rotating body, and the rotation The pressure in the rotating region of the body is reduced compared to other parts, and the pressure in the hollow body as a whole is also reduced. The pressure difference between the rotating region and other parts, and the pressure difference between the hollow interior and the outside air will gradually increase, but once a certain pressure difference is reached, it will reach an almost equilibrium state in relation to the gas flowing into the vicinity of the rotating region. and maintain this constant pressure state. This equilibrium state,
The pressure difference between the inside and outside of the rotating region in a constant pressure state and constant pressure state is determined by the magnitude of the rotational suction and exhaust force of the rotating body, the size of the opening area of the gas inlet, the size of minute gaps, etc. This equilibrium, constant pressure state is maintained as long as the rotating action of the rotating body continues. In this equilibrium state, it is assumed that air stagnation occurs in the rotating region of the rotating body, and as frictional action continues and repeats between the rotating body and the stagnant gas, frictional heat is generated and the temperature gradually rises. The warm air heated by this frictional heat passes through a small gap and is discharged from the gas outlet to the exhaust port. The opening area of the gas outlet is
If the exhaust capacity is set to be smaller than the exhaust capacity of the rotating body, the gas sucked into the hollow body will be forcibly discharged to the outside, resulting in a type of pressurization effect at the gas exhaust port, and the heat of compression will increase. With the occurrence of , it is possible to further increase the exhaust temperature. Furthermore, since a plurality of hollow bodies are arranged in series, it is possible to increase the temperature in stages and make the final exhaust temperature high. In this case, if the opening area of the gas outlet of each hollow body is set so that the exhaust capacity is smaller than the exhaust capacity of the rotating body installed in the hollow body, the pressure near the gas outlet will tend to increase. Since air is taken in by a rotating body installed in a hollow body adjacent to the continuous exhaust side, the area near the gas discharge port of the hollow body on the most exhaust side eventually becomes high pressure, and a kind of pressurizing effect is created in that part. It is estimated that the temperature increases more effectively with the generation of compression heat. In this invention, a plurality of hollow bodies are connected in series, and the output ratio of each motor is made smaller sequentially from the intake port side to the exhaust port side, but the final output ratio is smaller than when the output of each motor is the same. There is almost no change in the temperature of the heated air. (f) Embodiment The present invention will be explained below with reference to FIG. 1, which shows a central cross section of an embodiment in which the present invention is applied to a futon dryer, and FIG. 2, which shows a central cross section of another embodiment. 1 is a futon dryer; the futon dryer 1 is
It has an intake port 2 and an exhaust port 3. A hose 4 connected to a futon (not shown) can be fitted into the exhaust port 3. 5 is a hollow body having an airtight structure, and has a gas inlet 6 and a gas outlet 7. 8 is a rotating body, which is composed of rotating blades such as a propeller fan or a Shirotsuko fan. The rotating bodies 8 are rotatable by electric motors 9 installed in each of the hollow bodies 5 in a direction in which gas can be sucked in from the gas inlet 6 and gas can be discharged from the gas outlet 7. In a futon dryer in which one hollow body 5 is installed as shown in FIG.
The gas inlet is connected to the inlet of the futon dryer 1, and the gas outlet 7 is connected to the exhaust port 3. When connecting a plurality of hollow bodies as shown in Fig. 2, the gas outlet 7 and gas inlet 6 of each hollow body 5 are successively connected in a sealed state, and the gas exhaust of the hollow body on the most exhaust side is connected. The outlet 7 is connected to the exhaust port 3 of the futon dryer, and the gas inlet 6 of the hollow chamber on the most intake side is connected to the inlet port 2 of the futon dryer. g is a minute gap formed between the inner wall of the hollow body 5 and the rotating body 8, and R is the rotation area of the rotating body 8. The gas suction ports 6 are opened so that the gas suction capacity during normal rotation of the rotating body 8 installed in the corresponding hollow body is greater than the gas suction capacity of the gas suction ports 6 formed in each hollow body 5. It is necessary to set the area. In this embodiment, the rotating body 8 installed in the corresponding hollow body is
The opening area of the gas exhaust port 7 is set so that the gas exhaust capacity during normal rotation is greater. In the embodiment shown in FIG. 2, the capacity of each rotating body 8 decreases from the intake port side to the exhaust port side, and the output of each electric motor 9 that rotates the rotating body 8 is It is about 1/2 that of a motor. In other words, the ratio of the output of each electric motor is approximately 3 to 4:2 from the intake port side to the exhaust port side.
It is 1. Therefore, when the rotating body 8 is rotated by the electric motor 9,
The gas flows from the intake port 2 to the hollow body 5 via the gas intake port 6.
flow inside. At this time, since the opening area of the gas inlet 8 is limited to the gas suction capacity of the rotating body 8 installed in the corresponding hollow body 5, the rotating body 8
The amount of gas sucked in is smaller than the gas discharged by the rotating body 8, and the pressure in the rotation region R of the rotating body 8 is reduced compared to other parts, and the pressure in the hollow body as a whole is also reduced. The pressure difference between the rotation region R and other parts and the pressure difference between the hollow interior and the outside air gradually increase, but when a certain pressure difference is reached, the rotation region R
It reaches an almost equilibrium state in relation to the gas flowing into the vicinity, and maintains this constant pressure state. The pressure difference between the inside and outside of the rotating region R in this equilibrium state and constant pressure state depends on the magnitude of the rotational suction and exhaust force of the rotating body 8, the size of the opening area of the gas inlet 6, the size of the minute gap g, etc. However, this equilibrium and constant pressure state is maintained as long as the rotating action of the rotating body 8 continues. In this equilibrium state, a phenomenon of air stagnation occurs in the rotation region R of the rotor 8, and the frictional action continues repeatedly between the rotor 8 and the stagnant gas, so that frictional heat is generated and the temperature gradually rises. The warm air heated by this frictional heat passes through a small gap g, is discharged from the gas discharge port 7 to the exhaust port 3, passes through the hose 4, and is blown onto the futon.
When the opening area of the gas exhaust port 7 is set to a smaller exhaust capacity than the exhaust capacity of the rotating body 8, the hollow body 5
Since the gas sucked into the exhaust gas is forcibly discharged to the outside, a kind of pressurizing effect occurs at the gas outlet 7, which generates compression heat, making it possible to further increase the exhaust temperature. . When a plurality of hollow bodies 5 are arranged in succession as shown in FIG. 2, the temperature can be increased stepwise to make the final exhaust temperature high. In this case, if the opening area of the gas outlet of each hollow body 5 is set to have an exhaust capacity smaller than the exhaust capacity of the rotating body 8 installed in the hollow body,
Although the pressure near the gas outlet 7 tends to increase,
Since the air is taken in by the rotating body 8 installed in the hollow body 5 adjacent to the continuous exhaust side, the pressure near the gas discharge port of the hollow body 5 on the most exhaust port side eventually becomes high.
This part exhibits a kind of pressurizing effect, and the temperature increases more effectively with the generation of compression heat. In the case of three consecutive hollow bodies, if the gas intake and discharge capacity of the electric motor 9 that drives the rotating body installed in each hollow body is the same, the pressure inside each hollow body 5 will change from the intake port side to the exhaust port side. According to the story 1:
It changes from 1/2 to 1/3. As shown in Fig. 2, if the output ratio of each electric motor 9 is gradually decreased from 3 to 4:2:1 from the inlet side to the outlet side, the output of each electric motor 9 will be the same. There is almost no difference in the temperature of the warm air that is finally obtained. In this case, the opening area of the gas inlet 6 of the hollow body 5 on the most intake side needs to be of a size that can create a reduced pressure equilibrium state in the rotation region R of each rotating body. Embodiment 1 As shown in FIG. 3, a hollow body 5, 5, 5 with an airtight structure having a gas inlet and a gas outlet
A motor (750W) driving a fan of the same size is installed in each. The gas inlets of each hollow body each have a diameter of 270 mm. Hollow body from the intake side,
, and drive each rotating body, the changes in current used by each motor, intake temperature, and ventilation temperature over time will obtain the values shown in the table. Next, when the hollow bodies are connected in this order from the intake side, the values shown in Table 2 are obtained. Next, when the hollow bodies are connected in this order from the intake side, the values shown in Table 3 are obtained. In either case, the amount of current is greatest on the intake side and gradually decreases toward the exhaust side.

【table】

【table】

[Table] (G) Effects of the Invention Therefore, the present invention provides a heat generation unit that can efficiently generate hot air in a constant pressure equilibrium state and that can be used in a dryer that is efficient and has a small number of parts.

[Brief explanation of the drawing]

FIG. 1 is a central sectional view of an embodiment of the invention, and FIG.
The figure is a central sectional view of another embodiment, and FIG. 3 is an experimental diagram of this embodiment. 1... Futon dryer, 2... Intake port, 3... Exhaust port, 4... Hose, 5... Hollow body, 6... Gas inlet, 7... Gas outlet, 8... Rotating body, 9...
...Electric motor, g...minor gap, R...rotation area.

Claims (1)

[Scope of Claims] 1. A heating unit having an intake port and an exhaust port, which has a gas intake port and a gas discharge port, rotates with a gas suction capacity greater than the gas suction capacity of the gas intake port, and has a rotational action of a rotating body. A plurality of airtight hollow bodies having a rotating body that generates heat are installed between the intake and exhaust ports of the heating unit by sequentially connecting the gas outlet and gas intake of each hollow body. A heating unit characterized in that the hollow rotating body has the greatest gas suction capacity with the rotating body closest to the intake side. 2. The heating unit according to claim 2, wherein the gas suction capacity of the plurality of hollow rotary bodies decreases sequentially from the most inlet side to the most exhaust side. 3. A heat-generating unit having an intake port and an exhaust port, which has a gas intake port and a gas discharge port, and rotates with a gas suction and discharge capacity greater than the gas intake capacity of the gas intake port and the gas discharge capacity of the gas discharge port,
A plurality of airtight hollow bodies each having a rotating body that generates heat due to the rotating action of the rotating body are installed between the intake and exhaust ports of the heat generating unit by sequentially connecting the gas outlet and gas intake of each hollow body. In addition, the heating unit is characterized in that the gas suction and discharge capacity of the plurality of hollow rotary bodies installed is the highest in the rotary body on the intake side. 4. The heating unit according to claim 3, wherein the gas suction and discharge capacity of the plurality of hollow rotary bodies decreases from the most inlet side to the most exhaust side.