Shell-and-plate heat exchanger
A shell and plate heat exchanger includes a shell forming an internal space, and a plate stack housed in the internal space. A plurality of refrigerant channels communicate with the internal space, and a plurality of heating medium channels are blocked from the internal space. Each of the refrigerant channels is adjacent to an associated one of the heating medium channels with heat transfer plate interposed between. Each of the heat transfer plates includes a first communication hole that communicates with the heating medium channels to introduce the heating medium, a second communication hole formed below the first communication hole that communicates with the heating medium channels to emit the heating medium, and a guide crossing between the first and second communication holes to guide the heating medium that has flowed into the heating medium channels from the first communication hole toward side portions of the heat transfer plate.
1 . A shell and plate heat exchanger, comprising:
a shell forming an internal space; and
a plate stack housed in the internal space of the shell, the plate stack including a plurality of heat transfer plates stacked in a lateral direction and joined together,
the shell and plate heat exchanger being configured to allow a refrigerant that has flowed into the internal space of the shell to evaporate,
the plate stack forming
a plurality of refrigerant channels that communicate with the internal space of the shell and allow a refrigerant to flow through and
a plurality of heating medium channels that are blocked from the internal space of the shell and allow a heating medium to flow through,
each of the refrigerant channels being adjacent to an associated one of the heating medium channels with heat transfer plate interposed therebetween,
each of the heat transfer plates including
a first communication hole that communicates with the heating medium channels to introduce the heating medium into the heating medium channels, and
a second communication hole formed below the first communication hole that communicates with the heating medium channels to emit the heating medium out of the heating medium channels, and
a guide crossing between the first communication hole and the second communication hole to guide the heating medium that has flowed into the heating medium channels from the first communication hole toward side portions of the heat transfer plate, a right end or a left end of the guide being located lateral to the second communication hole and being located below an upper end of the second communication hole, the guide intersecting a line segment extending between a lower end of the first communication hole and the upper end of the second communication hole, the guide being formed by adjacent ones of the plurality of heat transfer plates being joined together,
a distance between a lower end of the second communication hole and a lower end of the heat transfer plate being greater than a distance between an upper end of the first communication hole and an upper end of the heat transfer plate,
the guide being formed such that the heating medium does not pass therethrough over an entire length thereof.
2 . The shell and plate heat exchanger of claim 1 , wherein
a center of the second communication hole is located at a position higher than a position of a lower end of the guide.
3 . The shell and plate heat exchanger of claim 2 , wherein
the guide is a plate member disposed to penetrate the plurality of heat transfer plates stacked and joined together.
4 . The shell and plate heat exchanger of claim 2 , wherein
the guide is formed of a heat transfer plate protrusion or a heat transfer plate recess.
5 . The shell and plate heat exchanger of claim 1 , wherein
the guide is formed of a heat transfer plate protrusion or a heat transfer plate recess.
6 . A shell and plate heat exchanger comprising:
a shell forming an internal space; and
a plate stack housed in the internal space of the shell, the plate stack including a plurality of heat transfer plates stacked in a lateral direction and joined together,
the shell and plate heat exchanger being configured to allow a refrigerant that has flowed into the internal space of the shell to evaporate,
the plate stack forming
a plurality of refrigerant channels that communicate with the internal space of the shell and allow a refrigerant to flow through and
a plurality of heating medium channels that are blocked from the internal space of the shell and allow a heating medium to flow through,
each of the refrigerant channels being adjacent to an associated one of the heating medium channels with heat transfer plate interposed therebetween,
each of the heat transfer plates including
a first communication hole that communicates with the heating medium channels to introduce the heating medium into the heating medium channels, and
a second communication hole formed below the first communication hole that communicates with the heating medium channels to emit the heating medium out of the heating medium channels, and
a guide crossing between the first communication hole and the second communication hole to guide the heating medium that has flowed into the heating medium channels from the first communication hole toward side portions of the heat transfer plate, a right end or a left end of the guide being located lateral to the second communication hole and being located below an upper end of the second communication hole, the guide intersecting a line segment extending between a lower end of the first communication hole and the upper end of the second communication hole, the guide being formed by adjacent ones of the plurality of heat transfer plates being joined together,
a distance between a lower end of the second communication hole and a lower end of the heat transfer plate being greater than a distance between an upper end of the first communication hole and an upper end of the heat transfer plate,
the guide being a plate member disposed to penetrate the plurality of heat transfer plates stacked and joined together.
7 . The shell and plate heat exchanger of claim 6 , wherein
a center of the second communication hole is located at a position higher than a position of a lower end of the guide.
8 . The shell and plate heat exchanger of claim 6 , wherein
the guide is formed of a heat transfer plate protrusion or a heat transfer plate recess.
9 . A shell and plate heat exchanger, comprising:
a shell forming an internal space; and
a plate stack housed in the internal space of the shell, the plate stack including a plurality of heat transfer plates stacked in a lateral direction and joined together,
the shell and plate heat exchanger being configured to allow a refrigerant that has flowed into the internal space of the shell to evaporate,
the plate stack forming
a plurality of refrigerant channels that communicate with the internal space of the shell and allow a refrigerant to flow through and
a plurality of heating medium channels that are blocked from the internal space of the shell and allow a heating medium to flow through,
each of the refrigerant channels being adjacent to an associated one of the heating medium channels with heat transfer plate interposed therebetween,
each of the heat transfer plates including
a first communication hole that communicates with the heating medium channels to introduce the heating medium into the heating medium channels, and
a second communication hole formed below the first communication hole that communicates with the heating medium channels to emit the beating medium out of the heating medium channels, and
a guide crossing between the first communication hole and the second communication hole to guide the heating medium that has flowed into the heating medium channels from the first communication hole toward side portions of the heat transfer plate, a right end or a left end of the guide being located lateral to the second communication hole and being located below an upper end of the second communication hole, the guide intersecting a line segment extending between a lower end of the first communication hole and the upper end of the second communication hole, the guide being formed by adjacent ones of the plurality of heat transfer plates being joined together,
a distance between a lower end of the second communication hole and a lower end of the heat transfer plate being greater than a distance between an upper end of the first communication hole and an upper end of the heat transfer plate,
the guide being formed by the adjacent ones of the heat transfer plates joined together along an entire length of the guide.
10 . The shell and plate heat exchanger of claim 9 , wherein
the guide is formed by a first linear flat portion and a second linear flat portion formed respectively on the adjacent ones of the heat transfer plates joined together along an entire length thereof.
11 . The shell and plate heat exchanger of claim 9 , wherein
a center of the second communication hole is located at a position higher than a position of a lower end of the guide.
12 . The shell and plate heat exchanger of claim 9 , wherein
the guide is formed of a heat transfer plate protrusion or a heat transfer plate recess.