CN216644624U

CN216644624U - Heat pump evaporator and closed heat source tower

Info

Publication number: CN216644624U
Application number: CN202123301877.9U
Authority: CN
Inventors: 吴伟杰; 王建利; 杜深慧
Original assignee: Shijiazhuang Wangkong Energy Technology Co ltd
Current assignee: Shijiazhuang Wangkong Energy Technology Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-05-31
Anticipated expiration: 2031-12-27

Abstract

The embodiment of the application relates to a heat pump evaporator and closed heat source tower, the heat pump evaporator includes the shell, establish gas input and the gas output on a pair of parallel side of shell respectively, a plurality of heat exchange plate group of interval establishment in the shell, establish on the bottom surface of shell and with heat exchange medium input that heat exchange plate group is connected and establish on the top surface of shell and with the heat exchange medium output that heat exchange plate group is connected, there is the gap between the heat exchange plate group, the gap keeps unanimous with the gaseous flow direction in the shell. The closed heat source tower comprises the heat pump evaporator. The heat pump evaporator and the closed heat source tower disclosed by the embodiment of the application can increase the contact area and improve the contact time to improve the heat exchange efficiency.

Description

Heat pump evaporator and closed heat source tower

Technical Field

The application relates to the technical field of energy recycling, in particular to a heat pump evaporator and a closed heat source tower.

Background

The working principle of the heat pump evaporator is to recycle the heat energy of the heat source heat exchange medium, and under the working condition, the heat exchange efficiency needs to be improved as much as possible to obtain higher operation economy.

Disclosure of Invention

The embodiment of the application provides a heat pump evaporator and closed heat source tower, and the heat exchange efficiency can be improved by increasing the contact area and improving the contact time.

The above object of the embodiments of the present application is achieved by the following technical solutions:

in a first aspect, an embodiment of the present application provides a heat pump evaporator, including:

a housing;

the gas input end and the gas output end are respectively arranged on a pair of parallel side surfaces of the shell;

the heat exchange plate groups are arranged in the shell at intervals, and gaps among the heat exchange plate groups are consistent with the flow direction of gas in the shell;

the heat exchange medium input end is arranged on the bottom surface of the shell and connected with the heat exchange plate group; and

and the heat exchange medium output end is arranged on the top surface of the shell and connected with the heat exchange plate group.

In one possible implementation manner of the first aspect, the heat exchange plate group includes a first heat exchange plate and a second heat exchange plate;

a heat exchange medium circulation channel is arranged between the first heat exchange plate and the second heat exchange plate;

the inner wall of the first heat exchange plate is uniformly provided with first bulges;

the inner wall of the second heat exchange plate is uniformly provided with second bulges.

In one possible implementation manner of the first aspect, the first protrusions and the second protrusions are arranged in a staggered manner.

In a possible implementation manner of the first aspect, the outer wall of the first heat exchange plate is uniformly distributed with third protrusions, and the outer wall of the second heat exchange plate is uniformly distributed with fourth protrusions.

In a possible implementation manner of the first aspect, the third protrusions on the first heat exchange plate are staggered with the fourth protrusions on the second heat exchange plate in another adjacent heat exchange plate group.

In a possible implementation manner of the first aspect, the heat exchange medium input end includes a first main pipe and a plurality of branch pipes connected to the first main pipe;

the branch pipes are sequentially connected with each heat exchange plate group.

In a possible implementation manner of the first aspect, the heat exchange medium output end comprises a gas chamber with a cavity and a second main pipe connected with the gas chamber;

the gas chamber is connected with each heat exchange plate group.

In a second aspect, an embodiment of the present application provides a closed heat source tower, including a heat pump evaporator as described in the first aspect and any implementation manner of the first aspect.

Drawings

Fig. 1 is a schematic view of an internal structure of a heat pump evaporator according to an embodiment of the present application.

Fig. 2 is a schematic external structural diagram of a heat pump evaporator according to an embodiment of the present application.

Fig. 3 is an enlarged schematic view of a portion a in fig. 1.

Fig. 4 is a schematic view of a connection between a heat exchange plate group and a component pipe according to an embodiment of the present application.

In the figure, 11, the housing, 12, the gas input, 13, the gas output, 14, the heat exchange plate group, 15, the heat exchange medium input, 16, the heat exchange medium output, 141, the first heat exchange plate, 142, the second heat exchange plate, 143, the heat exchange medium circulation channel, 144, the first protrusion, 145, the second protrusion, 146, the third protrusion, 147, the fourth protrusion, 151, the first main pipe, 152, the branch pipe, 161, the air chamber, 162, and the second main pipe.

Detailed Description

The technical solution of the present application will be described in further detail below with reference to the accompanying drawings.

Referring to fig. 1 and 2, a heat pump evaporator disclosed in an embodiment of the present application includes a housing 11, a gas input end 12, a gas output end 13, a heat exchange plate group 14, a heat exchange medium input end 15, a heat exchange medium output end 16, and the like, where the gas input end 12 and the gas output end 13 are respectively disposed on a pair of parallel side surfaces of the housing 11, and air outside the housing 11 flows in from the gas input end 12, contacts with the heat exchange plate group 14 to complete heat exchange, and then flows out from the gas output end 13.

The number of the heat exchange plate groups 14 is multiple, the heat exchange plate groups 14 are all arranged in the shell 11, and gaps exist between the adjacent heat exchange plate groups 14, and the flowing direction of the gaps and the flowing direction of the gas in the shell 11 are consistent.

The heat exchange medium input end 15 is arranged on the bottom surface of the shell 11 and connected with the heat exchange plate group 14, the heat exchange medium output end 16 is arranged on the top surface of the shell 11 and connected with the heat exchange plate group 14, the heat exchange medium absorbs heat after entering the bottom of the heat exchange plate group 14 and gradually changes from a liquid state to a gas state, and in the process, the heat exchange medium can also rise in the heat exchange plate group 14 and finally flows out of the heat exchange medium output end 16, so that efficient heat exchange is realized.

Referring to fig. 3, the heat exchange plate group 14 is composed of a first heat exchange plate 141 and a second heat exchange plate 142, and a heat exchange medium flowing channel 143 is further present between the first heat exchange plate 141 and the second heat exchange plate 142, that is, the first heat exchange plate 141 and the second heat exchange plate 142 can form a closed space, and the space is the heat exchange medium flowing channel 143.

Meanwhile, the inner walls of the first heat exchange plates 141 are uniformly provided with the first protrusions 144, the inner walls of the second heat exchange plates 142 are uniformly provided with the second protrusions 145, the first protrusions 144 and the second protrusions 145 can increase the retention time of the heat exchange medium in the heat medium circulation passage 143, and can increase the contact area between the first heat exchange plates 141 and the second heat exchange plates 142 and the gas flowing into the housing 11, which is helpful for improving the heat exchange efficiency.

Further, the first protrusions 144 and the second protrusions 145 are staggered.

Referring to fig. 1 and fig. 3, as a specific embodiment of the heat pump evaporator provided by the application, the third protrusions 146 are uniformly distributed on the outer wall of the first heat exchange plate 141, the fourth protrusions 147 are uniformly distributed on the outer wall of the second heat exchange plate 142, and the third protrusions 146 and the fourth protrusions 147 can increase the residence time of the gas flowing into the shell 11 in the gap between the heat exchange plate groups 14, and at the same time, the contact area between the first heat exchange plate 141 and the second heat exchange plate 142 and the gas flowing into the shell 11 can also be increased, which is beneficial to improving the heat exchange efficiency.

Further, the third protrusions 146 on the first heat exchange plate 141 are staggered with the fourth protrusions 147 on the second heat exchange plate 142 in another adjacent heat exchange plate group 14.

Referring to fig. 1 and 4, as an embodiment of the heat pump evaporator provided by the application, the heat exchange medium input end 15 includes a first main pipe 151 and a plurality of branch pipes 152 connected to the first main pipe 151, and the branch pipes 152 are sequentially connected to each heat exchange plate group 14.

Thus, the liquid heat exchange medium can uniformly flow into each sub-pipe 152, and the heat exchange medium in the sub-pipe 152 uniformly flows into each heat exchange plate group 14, it should be understood that when the volume of the heat exchange plate group 14 is large, the plurality of sub-pipes 152 can cover each area of the heat exchange plate group 14 as much as possible, so that the distribution of the heat exchange medium in the heat exchange plate group 14 can be more uniform.

The heat exchange medium output end 16 is composed of an air chamber 161 with a cavity and a second main pipe 162 connected with the air chamber 161, the air chamber 161 is connected with each heat exchange plate group 14, so that the heat exchange medium gasified in the heat exchange plate groups 14 can uniformly flow into the air chamber 161 and then flow out through the second main pipe 162.

The embodiment of the application also discloses a closed heat source tower, which comprises any one of the heat pump evaporators recorded in the content.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A heat pump evaporator, comprising:

a housing (11);

a gas input end (12) and a gas output end (13) which are respectively arranged on a pair of parallel side surfaces of the shell (11);

the heat exchange plate groups (14) are arranged in the shell (11) at intervals, and gaps among the heat exchange plate groups (14) are consistent with the flow direction of gas in the shell (11);

the heat exchange medium input end (15) is arranged on the bottom surface of the shell (11) and is connected with the heat exchange plate group (14); and

and the heat exchange medium output end (16) is arranged on the top surface of the shell (11) and is connected with the heat exchange plate group (14).

2. A heat pump evaporator according to claim 1, characterized in that the heat exchange plate group (14) comprises a first heat exchange plate (141) and a second heat exchange plate (142);

a heat exchange medium circulation channel (143) is arranged between the first heat exchange plate (141) and the second heat exchange plate (142);

the inner wall of the first heat exchange plate (141) is uniformly provided with first bulges (144);

second bulges (145) are uniformly distributed on the inner wall of the second heat exchange plate (142).

3. A heat pump evaporator according to claim 2, wherein the first projections (144) and the second projections (145) are arranged alternately.

4. A heat pump evaporator according to claim 1, wherein the first heat exchange plate (141) has third bosses (146) on the outer wall thereof, and the second heat exchange plate (142) has fourth bosses (147) on the outer wall thereof.

5. A heat pump evaporator according to claim 4, characterised in that the third bosses (146) on a first heat exchanger plate (141) are staggered with respect to the fourth bosses (147) on a second heat exchanger plate (142) of another adjacent set (14) of heat exchanger plates.

6. A heat pump evaporator according to claim 1, characterised in that the heat exchange medium input (15) comprises a first main pipe (151) and a plurality of branch pipes (152) connected to the first main pipe (151);

the branch pipes (152) are sequentially connected with each heat exchange plate group (14).

7. A heat pump evaporator according to claim 1 or 6, characterized in that the heat exchange medium outlet (16) comprises a gas chamber (161) with a cavity and a second main pipe (162) connected to the gas chamber (161);

a plenum (161) is connected to each heat exchange plate set (14).

8. A closed heat source tower comprising the heat pump evaporator according to any one of claims 1 to 7.