Plate heat exchanger

A plate heat exchanger comprising a stack of heat transfer plates which are provided with through inlet ports forming an inlet channel through said stack and, between said heat transfer plates, sealing means which together with said heat transfer plates in substantially every other plate interspace delimit a first flow passage for a first fluid and, in substantially each of the remaining plate interspaces, delimit a second flow passage for a second fluid, wherein said inlet channel communicates with each first flow passage by way of at least one inlet passage and is blocked from each second flow passage by sealing means which is located in a primary sealing area around each respective inlet port, said heat transfer plates forming said first flow passage having a gasket arranged therebetween around each respective inlet port, wherein the gasket is located in a gap between a pair of permanently joined heat transfer plates forming said first flow passage and seals around the respective inlet ports of said pair of heat transfer plates, and said gasket has a pressure drop producing device forming said inlet passage through said gasket.

A plate heat exchanger comprising a stack of heat transfer plates which are provided with through inlet ports forming an inlet channel through said stack and, between said heat transfer plates, sealing means which together with said heat transfer plates in substantially every other plate interspace delimit a first flow passage for a first fluid and, in substantially each of the remaining plate interspaces, delimit a second flow passage for a second fluid, wherein said inlet channel communicates with each first flow passage by way of at least one inlet passage and is blocked from each second flow passage by sealing means which is located in a primary sealing area around each respective inlet port, said heat transfer plates forming said first flow passage having a gasket arranged therebetween around the respective inlet ports, said inlet passage into said first flow passage formed by providing a throttling means for the fluid in said inlet channel to pass through said gasket, wherein the position of an outlet end of said throttling means communicates with a secondary inlet channel formed by a secondary port lying within the bounds enclosed by said primary sealing area.

A plate heat exchanger comprising a stack of heat transfer plates which are provided with through inlet ports forming an inlet channel through said stack and, between said heat transfer plates, sealing means which together with said heat transfer plates in substantially every other plate interspace delimit a first flow passage for a first fluid and, in substantially each of the remaining plate interspaces, delimit a second flow passage for a second fluid, wherein said inlet channel communicates with each first flow passage by way of at least one inlet passage and is blocked from each second flow passage by sealing means which is located in a primary sealing area around each respective inlet port, said heat transfer plates forming said first flow passage having a gasket arranged therebetween around each respective inlet port, wherein a gasket is located in a gap between a pair of permanently joined heat transfer plates forming said first flow passage and seals around the respective inlet ports of said pair of heat transfer plates, and said gasket has a pressure drop producing device forming said inlet passage through said gasket, and wherein said inlet passage extends through the gasket.

A plate heat exchange comprising a stack of heat transfer plates which are provided with through inlet ports forming an inlet channel through said stack and, between said heat transfer plates, sealing means which together with said heat transfer plates in substantially every other plate interspace delimit a first flow passage for a first fluid and, in substantially each of the remaining plate interspaces, delimit a second flow passage for a second fluid, wherein said inlet channel communicates with each first flow passage by way of at least one inlet passage and in blocked from each second flow passage by sealing means which is located in a primary sealing area around each respective inlet port, said heat transfer plates forming said first flow passage having a gasket arranged therebetween around the respective inlet ports, said inlet passage into said first flow passage formed by providing a throttling means for the fluid in said inlet channel to pass through said gasket, wherein the position of an outlet end of said throttling means communicates with a secondary inlet channel formed by a secondary port lying within the bounds enclosed by said primary sealing area, and wherein said inlet passage is formed by providing one or several holes through at least one of the plates that define said first flow passage.

A plate heat exchanger comprising a stack of heat transfer plates which are provided with through inlet ports forming an inlet channel through said stack and, between said heat transfer plates, sealing means which together with said heat transfer plates in substantially every other plate interspace delimit a first flow passage for a first fluid and, in substantially each of the remaining plate interspaces, delimit a second flow passage for a second fluid, wherein said inlet channel communicates with each first flow passage by way of at least one inlet passage and is blocked from each second flow passage by sealing means which is located in a primary sealing area around each respective inlet port, said heat transfer plates forming said first flow passage having a gasket arranged therebetween around the respective inlet ports, wherein said inlet passage extends through said gasket into said first flow passage and is formed by providing a throttling means for the fluid in said inlet channel to pass through said gasket, and wherein the position of an outlet end of said throttling means communicates with a secondary inlet channel formed by a secondary port lying within the bounds enclosed by said primary sealing area.

A plate heat exchanger comprising a stack of heat transfer plates which are provided with through inlet ports forming an inlet channel through said stack and, between said heat transfer plates, sealing means which together with said heat transfer plates in substantially every other plate interspace delimit a first flow passage for a first fluid and, in substantially each of the remaining plate interspaces, delimit a second flow passage for a second fluid, wherein said inlet channel communicates with each first flow passage by way of at least one inlet passage and is blocked from each second flow passage by sealing means which is located in a primary sealing area around each respective inlet port, a gasket arranged between a pair of said heat transfer plates forming said first flow passage and sealing around the respective inlet ports of said pair of heat transfer plates, a throttling means forming said inlet passage through said gasket, wherein said throttling means has an inlet end communicating with said inlet channel and an outlet end communicating with a secondary inlet channel formed by a secondary port lying within the bounds enclosed by said primary sealing area.