JPH0239139U

JPH0239139U -

Info

Publication number: JPH0239139U
Application number: JP11838488U
Authority: JP
Priority date: 1988-09-09
Filing date: 1988-09-09
Publication date: 1990-03-15
Anticipated expiration: 2003-09-09
Also published as: JPH0648371Y2

Description

[Brief explanation of drawings]

第１図は本考案による圧力計の一実施例を示す
断面図、第２図ａは第１図の圧力計の分解図、第
２図ｂは第２図ａにおけるプロセスコネクタの平
面図、第３図は本考案による差圧計の一実施例を
示す断面図、第４図、第５図、第６図はそれぞれ
第１図および第２図における受圧フランジの異な
る変形例を示す断面図、第７図、第８図、第９図
はそれぞれ隔液ダイアフラムと本体ブロツクとの
気密接合の異なる実施態様を示す概略図、第１０
図ａは従来の圧力計の構造を示す概略図、第１０
図ｂは第１０図ａにおける隔液ダイアフラムと本
体ブロツクとの気密接合を示す要部概略図、第１
１図は従来の差圧計の構造を示す概略図である。１ａ，１ｂ，……本体ブロツク、２ａ，２ｂ，
２ｃ，２ｄ……受圧フランジ、３……隔液ダイア
フラム、４……圧力伝達媒体、７ａ，７ｂ……検
圧素子、８……パツキン、１１ａ……耐食材パイ
プ、１２……耐圧板、１４……耐食板、１６……
周溶接、２１……パツキン受け溝、２２……受圧
応動部、２３ａ，２３ｂ……凹部、２４……受け
溝。 Figure 1 is a sectional view showing an embodiment of the pressure gauge according to the present invention, Figure 2a is an exploded view of the pressure gauge in Figure 1, Figure 2b is a plan view of the process connector in Figure 2a, and 3 is a sectional view showing one embodiment of the differential pressure gauge according to the present invention, and FIGS. 4, 5, and 6 are sectional views showing different modifications of the pressure receiving flange in FIGS. 1 and 2, respectively. 7, 8 and 9 are schematic diagrams showing different embodiments of the airtight connection between the liquid diaphragm and the main body block, respectively.
Figure a is a schematic diagram showing the structure of a conventional pressure gauge;
Figure b is a schematic view of the main parts showing the airtight connection between the liquid diaphragm and the main body block in Figure 10a;
FIG. 1 is a schematic diagram showing the structure of a conventional differential pressure gauge. 1a, 1b, ...main block, 2a, 2b,
2c, 2d...Pressure receiving flange, 3...Liquid diaphragm, 4...Pressure transmission medium, 7a, 7b...Pressure detection element, 8...Packing, 11a...Corrosion-resistant pipe, 12...Pressure plate, 14 ...Corrosion-resistant plate, 16...
Circumferential welding, 21...Packet receiving groove, 22...Pressure responsive portion, 23a, 23b...Recessed portion, 24...Receiving groove.

Claims

[Claims for Utility Model Registration] (1) A main body block that is plate-shaped and has a concave portion in the center of one or both of its end faces, and a peripheral portion of the main body block that is hermetically sealed to the periphery of the concave end face of the main body block. a pressure transmission medium sealed in a recess closed by the liquid separation diaphragm, and a peripheral part of the liquid separation diaphragm that is in contact with the peripheral part of the liquid separation diaphragm via a packing, and is tightened and attached to the main body block. A pressure receiving flange introduces the fluid to be measured into the space between the liquid diaphragm and the pressure receiving flange, which is disposed in a cavity provided in the main body block in communication with the recess, and the pressure of the fluid to be measured is transmitted through the pressure transmission medium. In the pressure gauge/differential pressure gauge, the liquid-separating diaphragm has a gasket-receiving groove in its periphery, and its pressure-receiving portion is located in a recessed portion of the main body block by a required dimension. The pressure-receiving flange is formed in a concave portion, and the end face facing the liquid-separating diaphragm is formed flat, and the main body block has a receiving groove in its peripheral portion into which a packing receiving groove of the liquid-separating diaphragm is fitted. Pressure gauge/differential pressure gauge. (2) The pressure gauge/differential pressure gauge according to claim 1, wherein the position where the liquid separating diaphragm and the main body block are airtightly joined is inside the packing receiving groove.