JPS6422154U

JPS6422154U -

Info

Publication number: JPS6422154U
Application number: JP11166587U
Authority: JP
Priority date: 1987-07-21
Filing date: 1987-07-21
Publication date: 1989-02-03

Description

[Brief explanation of drawings]

第１図は本考案を強制給排気型ガス燃焼器の給
気側に取付けた一実施例を示す概略構成図、第２
図は本考案の要部の一実施例を示す側面図、第３
図ないし第７図は本考案の要部の異なる実施例を
示す側面図、第８図は風量と風圧の関係を示す概
略特性図、第９図ないし第１１図は従来における
一実施例の要部を示す側面図。１……送風フアン（シロツコフアン）、４……
フラツパ弁、４１……ストツパピン、４２……錘
、４３……トーシヨンばね、５……導圧管、５１
……検圧口、６……隙間、１２……吐き出し口、
１３……吸入口、１８……ダイヤフラム室、Ａ…
…圧力スイツチ、Ｃ……ガス燃焼器。 Fig. 1 is a schematic configuration diagram showing an embodiment of the present invention installed on the air supply side of a forced air supply/exhaust type gas combustor;
The figure is a side view showing one embodiment of the main part of the present invention.
7 to 7 are side views showing different embodiments of the main parts of the present invention, FIG. 8 is a schematic characteristic diagram showing the relationship between air volume and wind pressure, and FIGS. 9 to 11 are main points of one conventional embodiment. FIG. 1...Blower fan (Shirotskov fan), 4...
Flap valve, 41... Stopper pin, 42... Weight, 43... Torsion spring, 5... Impulse pipe, 51
...Pressure port, 6...Gap, 12...Outlet port,
13... Suction port, 18... Diaphragm chamber, A...
...Pressure switch, C...Gas combustor.

Claims

[Scope of utility model registration request]

In the case where the blower fan 1 is used to forcibly supply and exhaust the gas combustor C, one end of the impulse pipe 5 is inserted and installed with the pressure detection port 51 opened on the suction side or the discharge side of the blower fan 1. The end is connected to the diaphragm chamber 18 constituting the wind pressure switch A, and the flapper valve 4 is installed near the outlet 12 or the intake port 13 to provide ventilation from a position substantially perpendicular to the ventilation path where the cross-sectional area of the ventilation is substantially minimum. The forced air passage is rotatably pivoted so that the cross-sectional area becomes larger, and the flapper valve 4 is rotated in response to an increase or decrease in the amount of air blown by the blower fan 1, thereby automatically changing the size of the passage cross-sectional area. Safety device for supply/exhaust type gas combustor.