JPS6256742A - Combustion device - Google Patents

Abstract

PURPOSE:To prevent the reverse flow of condensed water as well as the generation of corrosion, abnormal combustion or the like due to dripping of the same by attaching a hopper to one part of a condensed water pipe connected to a receiving pan and a neutralizing unit so as to be isolated from the condensed water pipe. CONSTITUTION:Condensed water, generated on the surface of an auxiliary heat exchanger 3, is retrieved into a receiving pan 8 and is guided to a con densed water pipe 9. A hopper 12 is provided on the way of the condensed water pipe 9 so as to be isolated from the pipe 9, and condensed water received by the hopper 12 is guided into a neutralizing unit 10 to neutralize it and is then discharged to the outside of the device through a discharging pipe 11. A condensed water overflow receiving pan 13 is provided below the hopper 12 and is connected to an overflow pipe 14. The condensed water will never flow reversel to a heat exchanger and the side of burner but is discharged through an overflow pipe 14 even when the neutralizing unit 10 is clogged by impurities or foreign substances, therefore, early discovery of abnormality is facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a combustion apparatus equipped with a neutralization device for neutralizing condensed water generated in an auxiliary heat exchanger.

2. Description of the Related Art Conventionally, this type of combustion apparatus has a structure as shown in FIG. That is, the combustion gas burned in the burner 1 passes through the main heat exchanger 2, the auxiliary heat exchanger 3, and the exhaust pipe 4, and is discharged to the outside of the machine by the combustion fan 5.

On the other hand, water enters from the water supply pipe 6 and reaches the auxiliary heat exchanger 3, where the latent heat in the combustion gas burned in the burner 1 is recovered. After being further heated in the main heat exchanger 2,
The hot water is supplied from the hot water supply pipe 7 to a hot water supply pipe (not shown).

Condensed water generated on the surface of the auxiliary heat exchanger 3 is collected in a receiving tray 8 and discharged outside the machine via a condensed water pipe 9, a neutralizer 10, and a drain pipe 11. Strongly acidic ions such as SO:, No, etc. in the combustion gas are dissolved in this condensed water i, so that a neutralization process is performed in a neutralization device 10.

Problems to be Solved by the Invention However, with the above configuration, if the combustion device is not used for a long period of time, the remaining condensed water in the neutralization device 1o may react with the neutralizing agent to generate impurities. , or the one from which the surface treatment agent of the auxiliary heat exchanger 3 has peeled off is the neutralization device 10.
In some cases, the neutralization processing passage of the neutralization device 10 may be blocked due to the presence of foreign substances.

For this reason, there was a problem in that the condensed water was not drained and overflowed from the saucer 8 and dripped onto the main heat exchanger 2 and burner 1, causing corrosion, abnormal combustion, and the like.

In view of the above problems, the present invention prevents the backflow of condensed water and prevents corrosion, abnormal combustion, etc. caused by condensed water droplets.

Means for Solving the Problems The technical means of the present invention for solving the above problems are as follows:
A hopper is attached to a part of the condensate pipe connecting the saucer and the neutralization device by cutting off the edge of the KS condensate pipe.

For production The effect of this technical means is as follows.

That is, the condensed water collected in the tray passes through the condensed water pipe, is received by the hopper, and flows into the neutralization device.

If the passage of the neutralization device is blocked, the condensed water will rise above the hopper, but it will not reach the condensing main pipe.
) 5, the condensed water that overflows from the top of the phone bar is collected in a tray and drained out of the machine.

As a result, even if the passage of the Mangaichi neutralizer is blocked, there is no backflow to the saucer side, and it is possible to prevent equipment corrosion, abnormal combustion, etc. due to condensed water dripping Cζ.

Embodiment Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings. Note that the same parts as in the above conventional example are given the same reference numerals, detailed explanations are omitted, and only different parts will be explained.

In FIG. 1, condensed water generated on the surface of the auxiliary heat exchanger 3 is collected in a tray 8 and guided to a condensed water pipe 9.

Here, a hopper 12 is provided in the middle of the condensed water pipe 9, separated from the pipe, and the condensed water is separated from the receiving tray 8. The condensed water received in the hopper 12 is led to the neutralization device 10, where it is neutralized and drained into the drain pipe 1.
1 is ejected from the aircraft. A condensed water overflow tray 13 is provided at the bottom of the hopper 12, and an overflow tray 13 is provided at the bottom of the hopper 12.
It is connected to pipe 14.

In the combustion apparatus configured in this way, if impurities or foreign matter are generated or mixed in the neutralization device 10 and block the neutralization processing passage, the condensed water that accumulates in the neutralization device 10 will be transferred to the hopper. It rises at trench 12 and overflows from the top of hopper 12. The overflowing condensed water is collected in a condensed water overflow receiver 13 and discharged to the outside of the machine through an overflow pipe 14.

As described above, according to this embodiment, the inside of the neutralization device contains impurities,
Even if the condensed water becomes clogged with foreign matter, it will not flow back to the heat exchanger or burner, and will be discharged from the overflow pipe, making it easy to detect abnormalities at an early stage.

Effects of the Invention As described above, since the present invention has a hopper in the middle of the condensing main pipe, even if the neutralizing device of the condensed water pipe is clogged with foreign matter, the equipment will not be corroded by dripping due to the backflow of condensed water. This greatly helps improve safety because it prevents abnormal combustion, and allows early detection of abnormalities by checking the drainage of condensed water from the overflow tray.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view of a combustion device according to an embodiment of the present invention, and FIG. 2 is a vertical cross-sectional view showing a conventional combustion device. 2...Main heat exchanger, 3...Auxiliary heat exchanger, 8...Saucer, 9...-Condensed water pipe, 10...
・Neutralization device, 11... Drain pipe, 12...
・Hopper, 13... Condensed water overflow receiver, 14... Overflow pipe. Name of agent: Patent attorney Toshio Nakao and one other person? −
--Main Arabunkyo stone, 3--1 supplementary heat exchange cup 8--1 Tahi 17'' 1 9-1 condensation water pipe 10--Middle decline 1 Fig. 1 //-Drain pipe/Z- - Hocher 14 - Overflow operation Figure 2

Claims (2)

[Claims] (1) A main heat exchanger, an auxiliary heat exchanger, a receiver for collecting condensed water generated in the auxiliary heat exchanger, and a neutralization device for neutralizing the condensed water, and the receiver and the neutralization device are provided. A combustion device in which a hopper is provided in the middle of a connected condensate pipe, cutting off the pipe. (2) The combustion device according to claim 1, further comprising a condensed water overflow tray provided at the bottom of the hopper.