Abstract

A heat exchanger plate for a plate heat exchanger (12) includes a first side, a second side and a center point (P) through which an imaginary center axis (A) extends in a direction perpendicular to a plane of the plate. The plate comprises a first port for a first medium, and at least a second port and a third port for a second medium. The plate further comprises a first sealing arranged on the second side around the first port, a second sealing arranged on the second side at a circumference of the plate, and a closed third sealing arranged between the first and second sealings to form a first heat transfer area and a second heat transfer area separated from the first heat transfer area. The second port is arranged in the first heat transfer area and the third port is arranged in the second heat transfer area.

IPC Classes  ?

• F28D 1/03 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
• F28D 9/00 - Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
• F28F 3/08 - Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
• F23C 13/00 - Apparatus in which combustion takes place in the presence of catalytic material
• F23C 5/08 - Disposition of burners
• F23D 14/00 - Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
• F24H 1/00 - Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
• F24H 1/38 - Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water contained in separate elements, e.g. radiator-type element
• F24H 1/43 - Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes helically or spirally coiled
• F24H 1/48 - Water heaters for central heating incorporating heaters for domestic water
• F28D 21/00 - Heat-exchange apparatus not covered by any of the groups
• F23C 5/02 - Structural details of mounting
• F24H 1/32 - Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle being built-up from sections with vertical sections arranged side by side
• F23C 3/00 - Combustion apparatus characterised by the shape of the combustion chamber
• F23D 14/02 - Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
• F23D 14/66 - Preheating the combustion air or gas
• F23C 7/00 - Combustion apparatus characterised by arrangements for air supply
• F23C 9/00 - Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
• F24D 3/08 - Hot-water central heating systems in combination with systems for domestic hot-water supply

Abstract

A burner (11) for combustion of fuel, comprising an outer cover (23) having an inlet (14) for the fuel, and a combustion chamber (27) arranged within the outer cover (23), in which chamber the fuel is converted into combustion gases. The burner (11) comprises an inner cover (24) provided with an inlet opening (26) for the fuel, the inner cover being arranged within the outer cover (23) to form a space (25) between the outer cover (23) and the inner cover (24) for conducting incoming fuel around the inner cover (24) and to the inlet opening (26) of the inner cover (24). The invention also relates to a device for heating, comprising such a burner (11).

IPC Classes  ?

• F23D 14/00 - Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
• F23C 5/08 - Disposition of burners
• F24H 1/32 - Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle being built-up from sections with vertical sections arranged side by side
• F23C 13/00 - Apparatus in which combustion takes place in the presence of catalytic material

Abstract

A heat exchanger plate (17) for a plate heat exchanger (12), comprising a first side, a second side and a centre point (P) through which an imaginary centre axis (A) extends in a direction perpendicular to a plane of the plate (17), wherein the plate (17) comprises a first port (30) for a first medium, and at least a second port (31) and a third port (32) for a second medium. The plate (17) further comprises a first sealing (35) arranged on the second side around the first port (30), a second sealing (36) arranged on the second side at a circumference of the plate (17), and a closed third sealing (37) arranged between the first and second sealings (35, 36) to form a first heat transfer area (38) and a second heat transfer area (39) separated from the first heat transfer area (38), wherein the second port (31) is arranged in the first heat transfer area (38) and the third port (32) is arranged in the second heat trans¬ fer area (39). The invention also relates to a plate heat exchanger comprising such plates and a device for heating comprising such a heat exchanger.

IPC Classes  ?

• F28D 9/00 - Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
• F23C 13/00 - Apparatus in which combustion takes place in the presence of catalytic material
• F24H 1/32 - Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle being built-up from sections with vertical sections arranged side by side