JPH0247407Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention is a hot-air heating system that can heat greenhouses etc. using waste materials or solid fuels such as waste shavings, firewood, and coke, which are cheap fuels. This relates to improvements to exchangers.

(b) Prior art Conventionally, a combustion cylinder for burning solid fuel and a heat exchanger for discharging exhaust gas in the combustion cylinder have been installed in an outer cylinder having a solid fuel supply port, an air blowing port, and a hot air blowing port. Exchange pipes are provided, and air sent from the air outlet by a heat exchange fan is circulated around these combustion cylinders and heat exchange pipes, and during this circulation, heat is exchanged to create warm air. There is a heat exchanger that is configured to blow hot air into the room from an air outlet.

By the way, in this kind of hot air heat exchanger, the front edge of the opening, which is fully open at the front of the combustion cylinder, is fixed in a sealed manner to the inner surface of the front wall of the outer cylinder, so that the center of the opening can be seen. In this way, a small solid fuel supply port was formed on the front wall of the outer cylinder, and the outer cover of the supply port was attached to the front surface of the outer cylinder so that it could be opened and removed.

(c) Problems that the invention aims to solve: Therefore, the supply port, which is smaller than the opening and opens in the center, makes it difficult to supply solid fuel into the combustion cylinder. Not only is it difficult to perform internal maintenance and inspection, it is also difficult to do post-processing work to scrape out the combustion residue, ash, etc. of solid fuel from the inside of the combustion cylinder, so a scraping outlet and its lid are provided separately at the bottom of the supply port. However, since there is a limit to its size, there have been problems such as poor post-processing efficiency.

(d) Means for solving the problem Therefore, this invention solves the above problem by implementing the following means.

That is, a solid fuel supply port is installed on the front wall, and
A combustion cylinder having a front opening and a heat exchange pipe connecting the upper part of the combustion cylinder to the upper part of the outer cylinder are housed in an outer cylinder having an air blowing port and a hot air blowing outlet at appropriate locations, and fixing the front end peripheral edge of the opening in a sealed manner along the inner peripheral edge of the supply port;
In the hot air heat exchanger in which a heat exchange chamber is formed between the inner surface of the outer cylinder and the outer surfaces of the combustion tube and heat exchange tube, the supply port is formed in substantially the same opening as the opening, and the supply port In contrast, only the outer cover is provided on the front surface of the outer cylinder so that it can be opened and removed.

(e) Effect With the above configuration, by opening only the outer cover or removing it as necessary, solid fuel can be supplied from the supply port, which is approximately the same as the opening of the combustion tube, and the internal Maintenance inspection and post-processing work can be done easily and quickly.

(F) Embodiments Hereinafter, specific embodiments of this invention will be described with reference to the drawings.

The hot air heat exchanger includes a cylindrical combustion tube 1 having a circular, oval, rectangular, polygonal, etc. cylindrical shape with an opening 2 that is fully opened at the front, and a solid fuel having approximately the same opening as the opening 2 on the front wall. The supply port 4 of A is also accommodated in the same cylindrical outer cylinder 3 having an air blowing port 5 and a warm air blowing port 6 at appropriate positions so as to be concentric in the front and rear direction, and the front end peripheral edge of the opening 2 is is fixed in a sealed manner along the inner circumferential edge of the supply port 4 (although not shown, this sealing fixation is performed by fitting the outer circumferential edge of the front end of the opening 2 into the supply port 4). In this case, the opening also serves as the supply port), and the heat exchange tube 7 for circulating and discharging the exhaust gas in the combustion tube 1 is extended rearward from the upper part of the rear wall of the combustion tube 1. , is connected to the upper part of the rear wall of the outer cylinder 3, and has a double structure in which a heat exchange chamber 8 is formed between the inner surface of the outer cylinder 3 and the outer surface of the combustion cylinder and heat exchange tube 7.

An outer cover 9 of the supply port 4 is provided on the front surface of the outer cylinder 3.
It is attached so that it can be opened and removed freely. The outer lid 9 is
A larger one than the supply port 4 is used, and an appropriate air intake adjustment means 10 is provided at the lower center thereof, which can adjust the intake amount of air necessary for combustion.

Note that the specific mounting structure of this outer cover 9 is as follows:
On the outer lid 9 side, upper and lower insertion holes 9b are bored vertically through each end of the arms 9a extending to one side from the upper and lower parts of this one side, while on the outer cylinder 3 side The upper and lower fixing pins 3 facing upward are attached to the protrusions 3a drilled forward from the upper and lower parts of one side of the front surface.
b upright, and insert the upper and lower insertion holes 9b into the upper and lower fixing pins 3b.
The outer cover 9 has an opening/closing structure that allows the outer cover 9 to be opened and closed in the front and rear directions around the upper and lower fixing pins 3b after the insertion and fitting.
When the outer cover is closed, a pivot pin 9 is attached to the other side of the outer cover.
The locking piece 9d is pivoted so as to be movable up and down around C.
One side is shown as one that can be rotatably locked to an L-shaped hook 3C protruding from the other side of the front surface of the outer cylinder 3.

In addition, the positions of the air outlet 5 and the hot air outlet 6 may be any suitable location with good heat exchange efficiency; The lower part of the rear wall of the outer cylinder 3 is shown in the former position, and the upper front part of the outer cylinder 3 is shown in the latter position.

In the figure, 11 is a heat exchange fan that rotates in conjunction with an appropriate drive source in order to forcibly blow air into the heat exchange chamber 8 from the air blowing port 5, and 12 is a fan for supporting the combustion cylinder 1 more reliably. A support arm horizontally suspended in the front and back direction within the outer cylinder 3, 13 a support stand supporting the outer cylinder 3, 14 a base provided at the hot air outlet 6, 15
is a chimney.

According to the above, first, only the outer cover 9 is opened, and the solid fuel A is poured from the supply port 4, which has approximately the same opening as the opening 2, into the inner lower part of the combustion cylinder 1, either directly or by placing a rostol (not shown) on top of it. When the solid fuel is easily and quickly supplied and ignited to cause combustion of the solid fuel, the exhaust gas is discharged outdoors through the heat exchange pipe 7 and the chimney 15.
At an appropriate time, close the outer cover 9 and adjust the air intake adjustment means 10.
Adjust the amount of air intake to prevent the fire from weakening.

Meanwhile, during this period, when the heat exchange chamber 8 has warmed up appropriately, the heat exchange fan 11 is driven to send air into the heat exchange chamber from the air outlet 5, and the air is transferred to the heated combustion tube 1. The hot air is circulated around the heat exchange tube 7 to perform heat exchange and become warm air, and the hot air is discharged into the room from the hot air outlet 6 to perform heating. During this heating, if the outer cover 9 is opened at an appropriate time to replenish the solid fuel A, the heating can be continued. Conversely, when stopping heating, this supplementary supply is stopped and heat exchange fan 1 is turned off.
1 should be stopped.

Also, when performing post-processing work to scrape out ash, etc. that has accumulated inside the combustion tube 1, or when performing maintenance and inspection work inside the combustion tube 1, etc., the outer cover 9 must be opened or removed. It can be done from 4.

(g) Effects of the device As is clear from the above explanation, this device forms the supply port 4 in the front wall of the outer cylinder 3 to be approximately the same as the opening 2 of the combustion tube 1, and also
On the other hand, since only the outer cover 9 is provided on the front surface of the outer cylinder so that it can be opened and removed, the supply port is formed in a small opening in the center of the opening, and the outer cover is attached to the supply port. In addition, the structure is simpler compared to the case where a separate opening for scraping out ash, etc. remaining in the combustion tube and a cover were provided at the bottom of the same, and the solid fuel A is not easily discharged into the combustion tube 1. Supply work, post-processing work to scrape out ash, etc., or reliable maintenance and inspection work inside the combustion tube 1 and heat exchange tube 7 are carried out using the outer cover 9.
Opening the chisel or removing it as necessary can be done easily and quickly from the large supply port 4, improving various work efficiency and ensuring higher safety.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view showing a hot air heat exchanger implementing this invention, and FIG. 2 is a front view showing the same hot air heat exchanger. Code, 1... Combustion tube, 2... Opening, 3... Outer tube, 4... Supply port, 5... Air blowing port, 6... Warm air outlet, 7... Heat exchange tube, 8... Heat exchange room, 9
...Outer lid, A...Solid fuel.

Claims (1)

[Scope of utility model registration request] A combustion tube 1 having a front opening 2 in an outer cylinder 3 having a supply port 4 for solid fuel A on the front wall, and an air blowing port 5 and a hot air blowing port 6 at appropriate locations; and a heat exchange tube 7 that communicates and connects the outer cylinder 3, and the front end peripheral edge of the opening 2 is hermetically fixed along the inner peripheral edge of the supply port 4, and the inner surface of the outer cylinder 3 and In the hot air heat exchanger in which a heat exchange chamber 8 is formed between the combustion tube 1 and the outer surface of the heat exchange tube 7, the supply port 4 is connected to the opening 2.
A hot air heat exchanger characterized in that the supply port 4 is formed with approximately the same opening as the supply port 4, and only an outer cover 9 is provided on the front surface of the outer cylinder 3 so as to be openable and detachable.