JPS5829809Y2 - Sealed combustion type heater - Google Patents

Description

[Detailed Description of the Invention] This invention is designed to reduce the surface temperature of the heat exchanger and the exhaust temperature in a closed combustion type heater.

As conventional sealed combustion type heaters, the techniques shown in Utility Model Application No. 5131343 and Utility Model Application No. 51-88947 are known.

This device has a configuration as shown in FIGS. 1 and 2,
- Since the coal heat exchanger 11 and the secondary heat exchanger 12 connected thereto face each other directly across a certain space, - between the coal heat exchanger 11 and the secondary heat exchanger 12; for,
As the radiant heat interacts with each other, the surface temperature of the -coal heat exchanger 11 becomes high, which poses a problem in the heat resistance of the material, and the secondary heat exchanger 12 receives radiation from the -charcoal heat exchanger 11, so the heat There were disadvantages such as a decrease in the amount of exchange, a high temperature of the exhaust gas discharged from the exhaust pipe (FIG. 1, 13), and a low heat exchange efficiency.

The purpose of this invention is to eliminate the above-mentioned drawbacks by providing a partition plate between the primary heat exchanger and the secondary heat exchanger to absorb radiation from the primary heat exchanger.

That is, it is a closed combustion type heating machine in which a heat-absorbing partition plate is provided between two heat exchangers that face each other and are provided with a second heat exchanger and a secondary heat exchanger connected thereto. .

Next, to explain the function of the present invention, - Since the coal heat exchanger uses combustion gas immediately after combustion and is at a high temperature, the surface temperature is high and the amount of radiation is large. Since the large partition plate absorbs radiation, the surface temperature of the primary heat exchanger decreases.

Furthermore, the secondary heat exchanger is no longer exposed to radiation from the primary heat exchanger due to the partition plate.

An embodiment of this invention will be described below with reference to the drawings.

3 and 4, a primary heat exchanger 1 is provided in a casing 7, a burner 4 is built in the upper part of the coal heat exchanger 1, and a burner 4 is built in the lower part of the coal heat exchanger 1. A connecting pipe 5 is connected to the secondary heat exchanger 2, and an exhaust/exhaust vibro is connected to the outside of the casing 7.

- Between the coal heat exchanger 1 and the secondary heat exchanger 2, a partition plate 3 made of an alloy material of aluminum and iron is provided.

On the other hand, below the casing 7 is an indoor circulation blower 8, and on the left side thereof is a suction filter 9.

Further, a discharge grill 10 is provided on the left side of the upper part of the casing 7.

Next, to explain this operation, while passing through the inside of the coal heat exchanger 1, the combustion gas combusted in the bark 4 exchanges heat with the air that has passed through the suction filter 9 from the room by the blower 8. The combustion gas passes through the connecting pipe 5 and flows into the secondary heat exchanger 2, where it further exchanges heat with indoor air to become low-temperature combustion gas, which is discharged to the outside through the exhaust and exhaust vibro.

At this time, the temperature of the indoor air that has been heat exchanged by the charcoal heat exchanger 1 and the secondary heat exchanger 2 increases, and is returned to the room through the discharge grill 10 to heat the room.

Here, - the coal heat exchanger 1 contains combustion gas immediately after combustion and is at a high temperature, so the surface temperature is high and the amount of radiation is large. , because it absorbs radiation, the -order heat exchanger surface temperature decreases.

(In addition, even if the surface of the secondary heat exchanger 2 is treated with a high heat absorption rate, the amount of heat exchanged by the secondary heat exchanger 2 will decrease, which is not good.

) Also, by providing the partition plate 3, the secondary heat exchanger 2 does not receive radiation from the primary heat exchanger, so the amount of heat exchanged increases.

The partition plate 3 in the embodiment shown in FIGS. 3 and 4 is a flat plate, but other partition plates such as those shown in FIGS. It's bigger, so it's even more effective.

As described above, this invention is based on the following: - A second heat exchanger and a secondary heat exchanger connected to it are installed in a closed airtight manner in which a heat-absorbing partition plate is provided between two heat exchangers facing each other. It is a combustion type heater, and the partition plate absorbs the radiation from the high temperature primary heat exchanger, which lowers the surface temperature of the coal heat exchanger, increases the heat resistance of the material, and further increases the heat resistance of the secondary heat exchanger. Since it does not receive radiation from the primary heat exchanger, it has the advantage of increasing the amount of heat exchange, lowering the exhaust temperature, and increasing the heat exchange rate.

[Brief explanation of drawings]

1 and 2 are side sectional views showing a conventional closed-type heater, respectively; FIGS. 3 and 4 are front sectional views and side sectional views of an embodiment of the device; FIG. 5; FIGS. 6 and 7 are views showing partition plates in other embodiments. In the figure, 1 is the primary heat exchanger, 2 is the secondary heat exchanger, and 3 is the primary heat exchanger.
4 is a partition plate, 4 is a burner, 5 is a connecting pipe, 6 is an exhaust pipe, 7 is a casing, 8 is an indoor circulation blower, 9 is a suction filter, and 10 is a discharge grille. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] Sealed combustion characterized in that a heat-absorbing partition plate 3 is provided between the two heat exchangers, which are a primary exchanger 1 and a secondary heat exchanger 2 connected thereto, which are provided facing each other. Shaped heating machine.