JPH01102700U

JPH01102700U -

Info

Publication number: JPH01102700U
Application number: JP19997687U
Authority: JP
Priority date: 1987-12-28
Filing date: 1987-12-28
Publication date: 1989-07-11
Also published as: JPH0445038Y2

Description

[Brief explanation of the drawing]

第１図は本考案に係る保護管を炉に取り付けた
状態の正面図、第２図は中間保護管と先端保護管
を接続した状態の断面図、第３図は先端保護管の
断面図、第４図はＡ―Ａ′線断面図、第５図は保
護管の冷却水循環水路であつて往路と復路を左右
に分割した他の実施例図、第６，７図は従来例の
説明図である。１……炉、２……保護管、３……雰囲気吸引管
、６……中間保護管、７……先端保護管、９，２
４……冷却水接続入口、１０，２５……冷却水接
続出口、１１，１１ａ……冷却水入口、１２，１
２ａ……冷却水出口、１５，１５ａ……冷却水往
路、１６，１６ａ……冷却水復路、１７，１８，
１７ａ，１８ａ……切換バルブ、２０……冷却水
連通入口、２１……冷却水連通出口、２２……測
定器挿入管。 Fig. 1 is a front view of the protection tube according to the present invention attached to the furnace, Fig. 2 is a sectional view of the intermediate protection tube and tip protection tube connected, and Fig. 3 is a sectional view of the tip protection tube. Fig. 4 is a sectional view taken along the line A-A', Fig. 5 is an illustration of another embodiment of the cooling water circulation channel of the protection tube, in which the outward and return paths are divided into left and right parts, and Figs. 6 and 7 are explanatory views of the conventional example. It is. 1...Furnace, 2...Protection tube, 3...Atmosphere suction tube, 6...Intermediate protection tube, 7...Tip protection tube, 9,2
4... Cooling water connection inlet, 10, 25... Cooling water connection outlet, 11, 11a... Cooling water inlet, 12, 1
2a... Cooling water outlet, 15, 15a... Cooling water outward path, 16, 16a... Cooling water return path, 17, 18,
17a, 18a...Switching valve, 20...Cooling water communication inlet, 21...Cooling water communication outlet, 22...Measuring instrument insertion tube.

Claims

[Claims for Utility Model Registration] (1) A cooling water inlet and a cooling water connection inlet following the cooling water outgoing path and a cooling water outlet and a cooling water connection in the upper flange, which constitute an outgoing and incoming path of cooling water in the body part, and a cooling water outlet and a cooling water connection inlet that follow the outgoing path of cooling water, and In addition to forming a water connection outlet, switching valves are installed in the cooling water inlet and the cooling water connection inlet, and in the cooling water outlet and the cooling water connection outlet, respectively, and a cooling water communication inlet and a cooling water communication outlet are formed in the lower flange. An intermediate protection tube constituting a measuring instrument insertion tube, an outgoing path and a returning path of cooling water in the body, and the outgoing path and the returning path communicate with each other at the tip of the body, and a cooling water pipe connected to the upper flange following the cooling water outgoing path. A cooling water inlet, a cooling water connection inlet, a cooling water outlet following the return path, and a cooling water connection outlet are formed, and switching valves are installed in the cooling water inlet, cooling water connection inlet, cooling water outlet, and cooling water connection outlet, respectively. A protection tube for measuring the temperature of an in-furnace atmosphere, consisting of a tip protection tube constituting a measuring instrument insertion tube; (2) The protective tube for measuring the temperature of the furnace atmosphere according to claim 1, which is constructed of a double-structured circulation waterway in which the outward passage of cooling water in the body is on the outside and the return passage is on the inside. (3) The cooling water circulation channel in the body part is divided into left and right divided channels, one of which is configured as an outward path and the other as a return path, for measuring the temperature of the furnace atmosphere in the furnace as described in Claim 1 of the Utility Model Registration Claim. protection tube.