Abstract:
A heat exchanger (10) comprises walls (20, 30) to form a space (40) for a flue gas. At least one channel (60) formed in at least one of the walls (20) in which a fluid is to flow. The channel (60) includes at least two straight portions (60a, 60b) which are arranged in substantially parallel to each other and are connected in series. A stagnation prevention means (64) is arranged in at least one connecting area (61a) of the straight portions (60a, 60b) where the two straight portions (60a, 60b) are connected and which is located on the most upstream side in the channel (60) with respect to a fluid flow.
Abstract:
A heat exchanger (10) comprises a front wall (20) and a back wall (30) to form a space (40) for a flue gas such that a fluid flowing through a channel (60, 70) formed in the front wall (20) and back wall (30) can exchange heat with the flue gas, in use. The entire back wall (30) extends along a first plane (P1). The back wall (30) is provided with a back fin (120). The front wall (20) includes a lower portion (22) and an upper portion (24). The lower portion (22) extends upwardly along the back wall (30). The upper portion (24) extends upwardly from the upper end of the lower portion (22), extends outwardly away from the back wall (30) so as to form a combustion space (42) of a flammable gas between the upper portion (24) and the back wall (30), and is provided with a front fin (110). The front fin (110) and the back fin (120) are arranged symmetrically with respect to a virtual line (C2) along which the flammable gas is to be injected into the combustion space (42).
Abstract:
A heat exchanger system (1) comprises a heat exchange main unit (10), a housing (9), a drain collecting part (4) and a siphon (200). The heat exchange main unit (10) has a gas channel (40) and a fluid channel (60, 70) configured such that a fluid in the fluid channel (60, 70) exchanges heat with the flue gas in the gas channel (40) in use. The housing (9) accommodates the heat exchange main unit (10). The drain collecting part (4) is arranged inside the housing (9) and collects condensate from the flue gas. The siphon (200) is attached to the drain collecting part (4) to prevent the release of the flue gas from a condensate outlet (204) formed therein. The siphon (200) has a tubular body (210) being attached to the drain collecting part (4) and having a first portion (240) and a second portion (250). The first portion (240) has a condensate inlet (202). The second portion (250) has the condensate outlet (204) and an operation member (252). The tubular body (210) is configured such that, when the tubular body (210) is attached to the drain collecting part (4), the first portion (240) is connected to the drain collecting part (4) and can be at least partially located inside the housing (9), the second portion (250) can be at least partially located outside the housing (9), and the operation member (252) can be located outside the housing (9). The second portion (250) is detachably attached to the first portion (240).
Abstract:
A heat exchange system (1) comprises a heat exchange main unit (10), a housing (9), a drain collecting part (4) and a siphon (200). The heat exchange main unit (10) has a gas channel (40) and a fluid channel (60, 70) configured such that a fluid in the fluid channel (60, 70) exchanges heat with the flue gas in the gas channel (40) in use. The housing (9) accommodates the heat exchange main unit (10). The drain collecting part (4) is arranged inside the housing (9) and collects condensate from the flue gas. The siphon (200) is detachably attached to the drain collecting part (4) to prevent the release of the flue gas from a condensate outlet (204) formed therein. The siphon (200) has a tubular body (210). A condensate inlet (202) is formed on one end side of the tubular body (210) and the condensate outlet (204) is formed on the other end side of the tubular body (210). The tubular body (210) has an attaching part (212) and a grip (214). The attaching part (212) is arranged on the end side of tubular body (210) on which the condensate inlet (202) is formed. The tubular body (210) is configured to detachably attach the tubular body (210) to the drain collecting part (4) through a hole (94) formed within a bottom wall (92) of the housing (9). The grip (214) is arranged on the other end side of the tubular body (210) on which condensate outlet (204) is formed. The grip (214) is configured to be located outside the housing (9) when the tubular body (210) is attached to the drain collecting part (4).
Abstract:
A heat exchanger (10) comprises a front wall (20) and a back wall (30) to form a space (40) for a flue gas, and a front channel (60) and a back channel (70) formed in the front wall (20) and the back wall (30), respectively, in which a fluid is to flow. The heat exchanger (10) is configured such that the fluid in the front and back channels (60, 70) can exchange heat with the flue gas, in use. The entire back wall (30) extends along a first plane (P1). The front wall (20) includes a lower portion (22) and an upper portion (24). The lower portion (22) extends upwardly along the back wall (30). The upper portion (24) extends upwardly from the upper end of the lower portion (22) and extends outwardly away from the back wall (30) so as to form a combustion space (42) of a flammable gas between the upper portion (24) and the back wall (30). The heat exchanger (10) is further configured such that the volume flow rate and/or mass flow rate of the fluid in the front channel (60) is greater than the back channel (70), in use.
Abstract:
A heat exchanger (10) comprises a front wall (20) and a back wall (30) to form a space (40) for a flue gas such that a fluid flowing through a channel (60, 70) formed in the front and back wall (20, 30) can exchange heat with the flue gas, in use. The front wall (20) includes a lower portion (22) and an upper portion (24). The lower portion (22) extends along the back wall (30). The upper portion (24) extends upwardly from the upper end of the lower portion (22) and extends outwardly away from the back wall (30) so as to form a combustion space (42) of a flammable gas between the upper portion (24) and the back wall (30). The length (L2) of the upper portion (24) along the longitudinal direction thereof is longer than the length (L1) of the lower portion (22) along the longitudinal direction thereof.