F - Mech Eng,Light,Heat,Weapons – 23 – L
Patent
F - Mech Eng,Light,Heat,Weapons
23
L
F23L 15/02 (2006.01) F16K 11/052 (2006.01) F16K 11/074 (2006.01) F28D 17/04 (2006.01) F28D 19/00 (2006.01)
Patent
CA 2140277
The present invention relates to a flow switching apparatus which has a simple structure and enables a rapid flow switching operation between two systems of flow, e.g., flows in which two kinds of fluid each having a temperature different from each other flows without causing any gas leakage. The flow switching apparatus comprises: a casing 18 partitioned by partition walls 5, 6 and 7 into four chambers among which two are defined as fixing chambers 2a and 2b connected to flows of two systems in which the flow directions of fluid are fixed and the remaining two are defined as switching chambers 4c and 4d connected to two systems of flow in which the flow directions of fluid are alternately switched, the two switching chambers 4c and 4d being so arranged as to be adjacent to each of the fixing chambers 4c and 4d; and communicating holes 8ac, 8bc, 8ad and 8bd which are formed in the partition wall 7 and communicate each of the fixing chambers 2a and 2b with the switching chambers 4c and 3d; and a switching means 3 which connects one fixing chamber 2a to one switching chamber 4d and the other fixing chamber 2b to the other switching chamber 4c by opening and closing the communicating holes 8ac, 8bc, 8ad and 8bd. The switching means 3 alternately connects the two fixing chambers 2a and 2b to either of the switching chambers 4c or 4d. Further, a regenerative alternate combustion burner system is constituted by using this flow switching apparatus in switching the air supply for combustion and the exhaust of combustion gas. Moreover, the flow switching apparatus is used to constitute a regenerative heat exchanger system in which the flow switching apparatus is provided on both the upstream and downstream sides of a regenerator and the flow of fluid which has changed in the flow switching apparatus on the upstream side is recovered in the same apparatus on the downstream side after having passed through the regenerator, switching flows in the regenerator.
Nippon Furnace Kogyo Kabushiki Kaisha
Sim & Mcburney
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