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公开(公告)号：US20230026841A1
公开(公告)日：2023-01-26
申请号：US17782046
申请日：2020-12-03
发明人： Ziwen Fu , Jun Xiao , Yonghua Cheng , Tingyu Li , Mohamed Mehdi Doura , Jianmin Yin
摘要： A water heater includes an inner water tube coil and an outer water tube coil separated by a drum baffle. The inner and outer coils extend above a top edge of the drum baffle by at least a full turn of each coil. A flue gas bypass path is defined between a top edge of the drum baffle and a top insulation layer above the inner and outer coils. Flue gases flow radially though the inner coil, up along the drum baffle, through the flue gas bypass path, and downwardly over the outer coil to heat water flowing through the inner and outer coils. The water flows into the outer coil at the bottom of the coil, winds upwardly through the outer coil in countercurrent flow with respect to the flue gases, then down through the inner coil.
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公开(公告)号：US10712022B2
公开(公告)日：2020-07-14
申请号：US15955907
申请日：2018-04-18
发明人： Aiguo Wei , Chengjun Zhang , Ziwen Fu
摘要： The present application relates to a constant pressure switch apparatus and a water heating system. The constant pressure switch apparatus includes: a body inside which a flow passage is provided, the flow passage having an inlet and an outlet; a first blocking member and an attraction member that can be magnetically attracted to each other; the first blocking member having a blocking position and a communicating position that are spaced apart at a preset distance; the first blocking member being able to move towards the communicating position when a pressure difference between both sides of the first blocking member in a direction from the inlet to the outlet is greater than an attraction force between the first blocking member and the attraction member; and the first blocking member being able to move towards the blocking position when a pressure difference between both sides of the first blocking member in a direction from the inlet to the outlet is less than an attraction force between the first blocking member and the attraction member. The constant pressure switch apparatus and water heating system provided in this application can enable the circulating pump to maintain a connected state of the flow passage without increasing pressure, and can also avoid the problem of series flow of cold and hot water.
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公开(公告)号：US11761677B2
公开(公告)日：2023-09-19
申请号：US17782046
申请日：2020-12-03
发明人： Ziwen Fu , Jun Xiao , Yonghua Cheng , Tingyu Li , Mohamed Mehdi Doura , Jianmin Yin
CPC分类号： F24H1/16 , F24H9/0026
摘要： A water heater includes an inner water tube coil and an outer water tube coil separated by a drum baffle. The inner and outer coils extend above a top edge of the drum baffle by at least a full turn of each coil. A flue gas bypass path is defined between a top edge of the drum baffle and a top insulation layer above the inner and outer coils. Flue gases flow radially though the inner coil, up along the drum baffle, through the flue gas bypass path, and downwardly over the outer coil to heat water flowing through the inner and outer coils. The water flows into the outer coil at the bottom of the coil, winds upwardly through the outer coil in countercurrent flow with respect to the flue gases, then down through the inner coil.
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