| 摘要 |
The device for reducing the gas and water contamination of transformer oil filling consisting of a main tank (1) and a conservator (2), provided with a sludge discharge fitting (230), being joined mutually by an upper connecting pipe (12) in which an upper Buchholz relay (120) and a discharge fitting (122) are installed. A top part of said main tank (1) is joined by an upper pipe coupling (111) in which a circulating pump (110) is built in with a top part of an oil cooler (11). A bottom pat of said oil cooler (11) is joined by a lower pipe coupling (112) with the bottom part of said main tank (1) which is provided with a release fitting (311), too. In its bottom part, said main tank (1) is joined by a connection (13), led out from a release fitting (311), with the top part of a stabilizing tank (3) the bottom part of which being joined by a connection pipe (23) with said sludge discharge fitting (230) and/or with a fitting located in the bottom part of said conservator (2). From the top part of said main tank (1), behind said Buchholz relay (120), a deaerating pipe (121) is led out which is passed into the top part of said conservator (2). Said discharge fitting (122), built in said upper connecting pipe (12) in direction towards said conservator (2), is closed and said release fitting (311) in the bottom part of said main tank (1) and said sludge discharge fitting (230) in the bottom part of said conservator (2) are open. A lower Buchholz relay (310) is built in the highest part of said connection (13) and a sludge discharge cock (231) is installed in the lowest part of said connecting pipe (23). In the top part of said stabilizing tank (3) an upper temperature sensor (301) is built which is connected by an upper signal line (303) with a temperature controller (103). In the bottom part of said stabilizing tank (3) a lower temperature sensor (302), which is connected by a lower signal line (304) with said temperature controller (103), is built in. Said temperature controller (103) operation is modified in such a way that the position of a thermal stratifying layer (30) in said stabilization vessel (3) may be stabilized in the basis of signals from both upper temperature sensor (301) and lower temperature sensor 8302) by means of switching on and off a fan (113). |
