JPH0236692U

JPH0236692U -

Info

Publication number: JPH0236692U
Application number: JP11612888U
Authority: JP
Priority date: 1988-09-02
Filing date: 1988-09-02
Publication date: 1990-03-09

Description

[Brief explanation of drawings]

第１図は本考案にかかる液化ガス蒸発装置用配
管継手の一実施例を示す縦断面図、第２図は第１
図の−線断面図、第３図は隙間用パツキンを
示す斜視図、第４図は上記実施例の冷却時の状態
を示す縦断面図、第５図および第６図はそれぞれ
別の実施例を示す縦断面図、第７図はさらに別の
実施例を示す横断面図、第８図は従来の液化ガス
蒸発装置用配管継手を示す縦断面図、第９図はそ
の冷却時の状態を示す縦断面図、第１０図は従来
の液化ガス蒸発装置用配管継手のガス漏れ確認作
業を示す側面図である。１，２……筒状ハブ、３……シールリング、５
……クランプ体、７，８……隙間用パツキン、９
……密閉空間、１１，２１……空洞部、１２，２
２……拡大径部、１３，２３……内径拡大部、２
５……障壁、３１……シールリングの内周側端部
、３２，３３……舌片、６１，６２……クランプ
体締結手段、７１……チユーブ、１２１，２２１
……拡大径部の傾斜面、１３１，２３１……空洞
部の内周面、３２１，３３１……舌片の外周面、
５１１，５２１……楔形の溝、５１６，５２６…
…楔形の溝の傾斜面、ａ，ｂ……配管。 FIG. 1 is a longitudinal cross-sectional view showing an embodiment of a piping joint for a liquefied gas evaporator according to the present invention, and FIG.
3 is a perspective view showing the gap packing, FIG. 4 is a vertical sectional view showing the cooling state of the above embodiment, and FIGS. 5 and 6 are different embodiments. FIG. 7 is a cross-sectional view showing yet another embodiment, FIG. 8 is a vertical cross-sectional view showing a conventional piping joint for a liquefied gas evaporator, and FIG. 9 shows its state during cooling. The longitudinal cross-sectional view shown in FIG. 10 is a side view showing a gas leakage check operation of a conventional piping joint for a liquefied gas evaporator. 1, 2...Tubular hub, 3...Seal ring, 5
... Clamp body, 7, 8 ... Gap seal, 9
... Closed space, 11, 21 ... Cavity part, 12, 2
2... Enlarged diameter part, 13, 23... Inner diameter enlarged part, 2
5... Barrier, 31... Inner peripheral end of seal ring, 32, 33... Tongue piece, 61, 62... Clamp body fastening means, 71... Tube, 121, 221
... Sloped surface of the enlarged diameter portion, 131, 231 ... Inner peripheral surface of the cavity, 321, 331 ... Outer peripheral surface of the tongue piece,
511,521...wedge-shaped groove, 516,526...
... Sloped surface of wedge-shaped groove, a, b... Piping.

Claims

[Claims for Utility Model Registration] 1. Used in an evaporator for evaporating liquefied gas,
A piping joint for connecting piping that serves as a flow path for gas after evaporating liquefied gas, which has a hollow portion through which the evaporated gas passes and an enlarged diameter portion whose outer diameter is enlarged, and one end portion is A pair of cylindrical hubs that are connected to piping and have their other ends facing each other, a seal ring that is sandwiched between each other end of the pair of cylindrical hubs, and a groove that has a wedge-shaped vertical cross section. a pair of clamp bodies, the pair of clamp bodies are arranged opposite to each other, and the wedge-shaped groove forms an annular groove, each of the enlarged diameter portions is fitted into the annular groove, and each enlarged diameter portion is fitted into the annular groove. An inclined surface corresponding to the wedge-shaped groove is formed in the enlarged diameter portion, and the seal ring is sandwiched between the other ends of the pair of cylindrical hubs by tightening the clamp bodies together by the clamp body fastening means. A piping joint for a liquefied gas evaporator, characterized in that it is configured as follows. 2. The inner circumferential end of the seal ring faces between the cavities of the pair of cylindrical hubs, and tongue pieces are formed protruding from both sides thereof so as to face into the cavities of the pair of cylindrical hubs. 2. The piping joint for a liquefied gas evaporator according to claim 1, wherein the outer circumferential surfaces of these tongue pieces are respectively aligned with the inner circumferential surfaces of the respective cavities of the pair of cylindrical hubs. 3. The piping joint for a liquefied gas evaporator according to claim 1 or 2, wherein the seal ring is made of metal. 4. The piping joint for a liquefied gas evaporator according to any one of claims 1 to 3, characterized in that a hollow portion of at least one of the pair of cylindrical hubs is provided with an enlarged inner diameter portion whose inner diameter is enlarged. . 5. The piping joint for a liquefied gas evaporator according to any one of claims 1 to 4, characterized in that a barrier is provided in the hollow portion of at least one of the pair of cylindrical hubs to cause gas flows to collide with each other. 6 Gap packings are interposed between the pair of clamp bodies, so that a sealed space is formed between the connecting portion of the pair of cylindrical hubs and the clamp bodies, and one of these gap packings is interposed between the pair of clamp bodies. The piping joint for a liquefied gas evaporator according to any one of claims 1 to 5, wherein a tube is attached to the tube for guiding the gas in the sealed space to the outside.