JPH0257124U

JPH0257124U -

Info

Publication number: JPH0257124U
Application number: JP13644088U
Authority: JP
Priority date: 1988-10-19
Filing date: 1988-10-19
Publication date: 1990-04-25
Anticipated expiration: 2003-10-19
Also published as: JPH0621531Y2

Description

[Brief explanation of drawings]

第１図は本考案の気水分離器を適用した貫流ボ
イラの概要図であり、第２図は気水分離器の縦断
面図、第３図は第２図のイ−イ視断面図である。
第４図ａ，ｂ，ｃ、第５図ａ，ｂ，ｃ、第６図ａ
，ｂ及び第７図ａ，ｂは、吹込ノズルの形状決定
のための気水分離試験に用いた多数の吹込ノズル
１０の中の一例を示す概要図である。第８図乃至
第１１図は従前の気水分離器の概要説明図である
。Ａは胴断面積、Ｄは胴内径、θはノズル先端部
の傾斜角、φは吹込ノズルの内径、Ｂは気水混合
体、Ｖ_１は胴内流速、Ｖ_０は気水混合体の吹込ノ
ズル内流速、Ｌ，ｌ_１，ｌ_２はノズル取付位置、
Ｒは蒸気乾き度。 FIG. 1 is a schematic diagram of a once-through boiler to which the steam separator of the present invention is applied, FIG. be.
Figure 4 a, b, c, Figure 5 a, b, c, Figure 6 a
, b and FIGS. 7a and 7b are schematic diagrams showing one example of a large number of blowing nozzles 10 used in the air-water separation test for determining the shape of the blowing nozzle. FIG. 8 to FIG. 11 are schematic explanatory diagrams of a conventional steam/water separator. A is the cross-sectional area of the shell, D is the inner diameter of the shell, θ is the inclination angle of the nozzle tip, φ is the inner diameter of the blowing nozzle, B is the air-water mixture, _V1 is the flow velocity in the shell, and _V0 is the blowing of the air-water mixture. The flow velocity in the nozzle, L, l ₁ and l ₂ are the nozzle installation position,
R is steam dryness.

Claims

[Scope of claims for utility model registration] (1) A straight pipe-shaped blowing nozzle 10 inside the cylindrical body 4
In a steam separator equipped with a steam/water separator, the tip of the steam/water mixture B blowing nozzle 10 is cut obliquely at an inclination angle θ of 40° to 60° with respect to the tube axis 10a, and the blowing The nozzle 10 is inserted into the cylinder approximately horizontally and parallel to the cylinder center line 4a in cross-sectional view, and the distance _l1 between the cylinder center line 4a and the blowing nozzle axis 10a is set to 0.25D to 0.30D, and The distance _l2 between the blow nozzle tip 10' and the cylinder center line 4a' in the direction perpendicular to the blow nozzle axis 10a is 0.14.
D to 0.26D (where D is the inner diameter of the shell), and the ratio V ₁ of the flow rate Q (m ³ /s) of the air-water mixture to be separated to the cross-sectional area A (m ² ) of the shell is 3 ( m/s) or less. (2) The steam-water separator according to claim (1), wherein the inner diameter D of the shell is approximately 155 to 255 mmφ. (3) The steam-water separator according to claim (1), wherein the inner diameter φ of the blowing nozzle 10 of the steam-water mixture B is such that the flow velocity _V0 of the steam-water mixture B is 30 (m/sec) or less. . (4) Claim (1) in which the distance L between the tube axis 10a of the blow nozzle 10 and the upper end of the body 4 is selected to be 1.5D or more.
) The steam separator described in ).