JPH0619927Y2 - boiler - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a boiler equipped with one or a plurality of evaporation tubes,
Preferably, in a J-type boiler in which the lower part of the evaporation tube is J-shaped, the evaporation chamber provided in the upper part of the evaporation tube is projected outside the smoke to form a non-heating part, and the applicant of the present application is one of the co-applicants. Japanese Patent Application No. 234567 invention (filed Nov. 7, 1984)
Japanese Patent Laid-Open No. 61-125503), which relates to the improvement of the vapor chamber above the evaporation pipe.

However, the present invention is widely applied not only to the improvement of the invention of Japanese Patent Application No. 234567/1984, but also to a boiler having a steam chamber above the evaporation chamber.

[Conventional technology]

In a conventional once-through boiler or a J-type boiler as shown in FIG. 2, a steam-water separator is provided outside the evaporator pipe. However, the invention of the above-mentioned Japanese Patent Application No. 234567/1984 is the J-type. The evaporation pipe is provided, and the upper part of the steam pipe is used as an evaporation chamber without separately providing a conventional steam-water separator, and the effects described in the specification of the prior invention are exhibited. As a result of continuing diligent research on the pipe, even in the J-type boiler of the previous application, the upper vapor chamber of the vaporizing pipe is in the heating part, so the upper portion of the vaporizing pipe is heated, so that the vapor chamber is burned or scale adheres. Turned out to be.

Similarly, a boiler in which the upper part of the evaporation tube is a steam tube and those are provided in the heating part has the above-mentioned drawbacks more or less.

[Problems to be solved by the invention]

In view of the above, the present invention does not require a special steam separator outside the main body of the boiler as shown in FIG. 2 and does not store the entire evaporation tube having a steam chamber in the upper part in the heating section. The upper part of the is projected vertically outside the heating part,
The moisture associated with the steam separates and falls, and the downcomer that leads to the lower head is not required.By using a steam chamber in the non-heated part, the burnout of the upper part of the evaporator and the adhesion of scale are prevented. The present inventors have completed the present invention by finding that steam of higher quality and higher dryness can be obtained.

[Means for solving problems]

The present invention is a boiler in which an upper part of an evaporation pipe having one or more evaporation pipes serves as a steam separation part, and the steam chamber above the evaporation pipe is vertically projected outside the smoke chamber to be isolated from a heated part. It provides a steam room and a boiler.

〔Example〕

FIG. 1 is a cross-sectional view of an embodiment of the present invention, which relates to a J-type boiler equipped with one J-shaped evaporation tube (1) in the lower part, which is a steam chamber above the evaporation tube (1). (3) is an extension of the steam pipe (1) and projects vertically out of the smoke chamber to separate it from the evaporation pipe (1) .A steam separator (1) is provided in the steam chamber and a steam pipe (4 ) Is connected.

FIG. 2 shows a J-type boiler in which a conventional steam chamber (3) is housed in an evaporation pipe (1) and a steam separator (16) is provided outside the evaporation chamber.

The present invention is not only the J-type boiler of the above-mentioned prior invention, but the evaporation tube is not J-type, for example, the invention of the applicant of the present invention.
No. 121265 (filed on June 4, 1985, JP-A-61-280)
It is also applicable to the Japanese Patent No. 301 publication).

1 and 2, (2) fin, (3) steam chamber, (4) steam pipe, (5) blow pipe, (6)
Water supply pipe, (7) pump, (8) burner, (10) fuel pipe, (12) combustion chamber, (13) exhaust gas, duct, (16) gas-liquid separator, (18) smoke chamber,
(23) It is the control.

[Effect of device]

In the present invention, the upper steam chamber of the steam pipe projects vertically outside the heating chamber, so-called smoke chamber, and is isolated from the smoke chamber, so the upper evaporation chamber of the evaporation pipe is burned out without the need for a heat insulating material or the like. In addition to being able to prevent scale from adhering to the boiler body without the need for a special steam separator outside the boiler body or a downcomer pipe for lowering the water content accompanying the evaporated steam , Good quality steam with high dryness is obtained, and when the present invention is applied to the J type boiler, scale accumulation and burnout and rupture due to overheating are prevented, and the structure is simple and inexpensive to manufacture. There is an advantage that a boiler with a high rate can be obtained.

[Brief description of drawings]

FIG. 1 shows an embodiment in which a J-type boiler equipped with a steam pipe according to the present invention is partially omitted, and FIG. 2 shows an example of a conventional J-type boiler in which a steam separator is provided outside the boiler body. 1 ... Evaporation pipe, 13 ... Exhaust gas duct 2 ... Fin, 18 ... Smoke chamber 3 ... Steam chamber, 21 ... Communication pipe 4 ... Steam pipe, 23 ... Heading 5 ... Blow pipe 6 ... … Water supply pipe 7 …… Water supply pump 8 …… Burner 10 …… Fuel pipe 12 …… Combustion chamber

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Atsumi Kaminashi 1-936 Oyodokita, Oyodo-ku, Osaka City, Osaka Prefecture Hirakawa Iron Works Co., Ltd. (56) Reference JP-A-56-155301 (JP, A) ) Actual Development Sho 59-26513 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A boiler comprising a single or a plurality of evaporation pipes, wherein the upper part of said evaporation pipes serves as a steam / water separation unit, and said steam / water separation unit is continuously connected to said evaporation pipes vertically outside the smoke chamber. A boiler characterized in that it is made to project and is a steam chamber separated from the heated part.