CN211650824U

CN211650824U - Heat exchanger of heat pump unit

Info

Publication number: CN211650824U
Application number: CN202020102251.1U
Authority: CN
Inventors: 姚建钢; 张华治
Original assignee: Ningbo Meike Carbon Dioxide Heat Pump Technology Co ltd
Current assignee: Ningbo Meike Carbon Dioxide Heat Pump Technology Co ltd
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2020-10-09
Anticipated expiration: 2030-01-16

Abstract

The utility model discloses a heat exchanger of a heat pump unit, relating to the technical field of heat pump units; the heat absorption plate comprises a plurality of fins and a plurality of heat absorption tubes, wherein the fins and the heat absorption tubes are parallel to each other and arranged in an array, the heat absorption tubes are of a circuitous structure and vertically penetrate through the fins, the heat absorption tubes are uniformly arranged along the axial direction of the fins, and the fins are made of hydrophilic aluminum foil. The hydrophilic aluminum foil avoids the formation of water drops, the circuitous structure increases the length of the heat absorbing pipe and the time for absorbing heat by carbon dioxide, and the heat absorbing efficiency is increased by the design of a plurality of heat absorbing pipes.

Description

Heat exchanger of heat pump unit

Technical Field

The utility model belongs to the technical field of heat pump set part, in particular to heat pump set heat exchanger.

Background

The heat exchanger is an important part in the air source heat pump unit, air passes through the heat exchanger, heat on the air is absorbed by the fins, heat of the fins is absorbed by a preparation in the heat absorption pipe, the temperature of the fins is reduced, and water vapor can be condensed on the surfaces of the fins to form water drops, so that the preparation is influenced to absorb heat from the air.

Chinese patent CN2731386, entitled air source heat pump outdoor wide and narrow fin-type heat exchanger, discloses an air source heat pump outdoor wide and narrow fin-type heat exchanger, which relates to the structure of outdoor fin-type heat exchangers of cold and hot water units, unit heat pump type air conditioners, roof heat pump type air conditioning units, heat pump type room air conditioners and the like which use air as a low-level heat source. The utility model discloses a heat exchanger comprises heat exchange tube, fin, and the fin is fixed on the outer wall of heat exchange tube, and the interval of the fin of heat exchanger air outlet one side is less than the interval of the fin of heat exchanger air inlet one side. Although the invention improves the working efficiency of the heat exchanger, water drops are still easily formed on the fins.

Disclosure of Invention

The utility model aims at overcoming the shortcoming that prior art forms the drop easily, providing a heat pump set heat exchanger, be difficult to form the drop.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a heat pump set heat exchanger, includes the casing, be located the air outlet of casing upside, be located the air intake on the casing, be located the heat absorption group board on the air intake, the heat absorption group board includes a plurality of fins, a plurality of heat absorption pipes that are parallel to each other and are the array and arrange, the heat absorption pipe is circuitous structure and passes the fin perpendicularly, the heat absorption pipe is evenly arranged along the axial of fin, the material of fin is hydrophilic aluminium foil. The hydrophilic aluminum foil avoids the formation of water drops, the circuitous structure increases the length of the heat absorbing pipe and the time for absorbing heat by carbon dioxide, and the heat absorbing efficiency is increased by the design of a plurality of heat absorbing pipes.

Preferably, the material of the heat absorbing pipe is pure copper. The heat absorption pipe is made of pure copper, and the pure copper has good heat conductivity and can help carbon dioxide to absorb heat of air well.

Preferably, the number of the heat absorption group plates is two, the heat absorption group plates are positioned on the left side and the right side of the shell, and the two heat absorption group plates are placed in an inverted splayed shape. The heat absorption group plates are symmetrically arranged, the air outlet is provided with the fan, when the fan runs, air inlet of the two heat absorption group plates is equal, the inverted splayed arrangement can increase the air inlet amount at the bottom end of the heat absorption group plate to a certain degree, and the heat absorption efficiency is high.

Preferably, one side of the shell is provided with a U-shaped main pipe, the main pipe is positioned between the heat absorption plates, the main pipe comprises a left vertical section, a right vertical section and a transverse section positioned between the vertical sections, the middle of the transverse section is provided with a connector, and one end of each heat absorption pipe of the heat absorption plates on the left side and the right side is connected to the corresponding vertical section. The structure is simple.

Preferably, both ends of the heat absorbing pipe are positioned at the same side of the shell. The structure is simple.

Preferably, the number of the air outlets is two. The design of adopting double fan, the air flows fast, and the heat absorption is efficient.

Preferably, the thickness of the fin is gradually reduced from top to bottom. When the fan moves, atmospheric pressure in the casing can reduce, because the inside upside of casing is closer apart from the fan distance ratio, from the top down atmospheric pressure crescent in consequently the casing, and the pressure differential from the top down of heat absorption group board both sides reduces gradually, the utility model discloses in, the thickness from the top down of fin reduces gradually, therefore the interval from the top down of fin crescent to make the air intake velocity at both ends about the heat absorption group board more even, the heat absorption efficiency greatly increased of heat absorption group board.

The utility model has the advantages that: the utility model is not easy to form water drops; the heat absorption efficiency is high, the air inlet speed is uniform from top to bottom of the heat absorption group plate, and the utilization rate of the heat absorption group plate is high.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a side view of the present invention.

In the figure: the heat absorption device comprises a shell 1, an air outlet 2, fins 4, a heat absorption pipe 5, a main pipe 6, a vertical section 7, a horizontal section 8 and a connector 9.

Detailed Description

The invention will be further explained in detail with reference to the drawings and the following detailed description:

example (b):

referring to fig. 1 to 2, a heat pump unit heat exchanger comprises a shell 1, two air outlets 2 positioned on the upper side of the shell 1, an air inlet positioned on the shell 1, and two heat absorption group plates positioned on the air inlet, wherein the number of the heat absorption group plates is two, the heat absorption group plates are positioned on the left side and the right side of the shell 1, and the two heat absorption group plates are arranged in an inverted splayed shape; the heat absorption plate assembly comprises a plurality of fins 4 and a plurality of heat absorption tubes 5 which are parallel to each other and arranged in an array, and the heat absorption tubes 5 are made of pure copper; the thickness of the fins 4 becomes thinner gradually from top to bottom; the heat absorption tubes 5 are of a circuitous structure and vertically penetrate through the fins 4, the heat absorption tubes 5 are uniformly arranged along the axial direction of the fins 4, and the fins 4 are made of hydrophilic aluminum foil; a U-shaped main pipe 6 is arranged on one side of the shell 1, the main pipe 6 is positioned between the heat absorption plates, the main pipe 6 comprises a left vertical section 7, a right vertical section 7 and a transverse section 8 positioned between the vertical sections 7, a connector 9 is arranged in the middle of the transverse section 8, and one end of each heat absorption pipe 5 of the heat absorption plates on the left side and the right side is connected to the corresponding vertical section 7; the two ends of the heat absorbing pipe 5 are positioned at the same side of the shell 1.

Principle of embodiment:

the utility model is used for an air source heat pump unit, carbon dioxide flows in the heat absorption pipe, the carbon dioxide enters from the interface 9 and then flows out from the other end of the heat absorption pipe, the heat absorption pipe absorbs heat energy in the air, the fin 4 increases the heat absorption area, the air outlet 2 is provided with a fan, the fan operates, the air flows through between the fins, the heat is transferred to the fin and then transferred to the carbon dioxide in the heat absorption pipe, the heat on the fin can be absorbed by the carbon dioxide, therefore, the temperature on the fin is lower, because the fin adopts hydrophilic aluminum foil, the formation of water drops can be well avoided, meanwhile, the heat absorption pipe adopts pure copper, the pure copper has good heat conductivity, the carbon dioxide can be well helped to absorb the heat of the air, when the fan operates, the air pressure in the shell can be reduced, because the upper side inside, the pressure differential from the top down of heat absorption group board both sides reduces gradually, the utility model discloses in, the thickness from the top down of fin reduces gradually, consequently the interval from the top down of fin crescent to make the air intake velocity at both ends is more even about heat absorption group board, the heat absorption efficiency greatly increased of heat absorption group board.

Claims

1. The heat pump unit heat exchanger comprises a shell, an air outlet positioned on the upper side of the shell, an air inlet positioned on the shell and a heat absorption plate positioned on the air inlet, and is characterized in that the heat absorption plate comprises a plurality of fins which are parallel to each other and arranged in an array manner and a plurality of heat absorption pipes, the heat absorption pipes are of a circuitous structure and vertically penetrate through the fins, the heat absorption pipes are uniformly arranged along the axial direction of the fins, and the fins are made of hydrophilic aluminum foils.

2. A heat pump unit heat exchanger as claimed in claim 1, wherein the heat absorbing tubing is made of pure copper.

3. The heat exchanger of heat pump unit as claimed in claim 1, wherein the number of the heat absorption plates is two, the heat absorption plates are located at the left and right sides of the housing, and the two heat absorption plates are arranged in an inverted splayed shape.

4. A heat pump unit heat exchanger as claimed in claim 3, wherein a U-shaped main tube is provided at one side of the housing, the main tube is located between the heat absorption plates, the main tube includes a left vertical section, a right vertical section, and a horizontal section located between the vertical sections, a connector is provided in the middle of the horizontal section, and one end of the heat absorption tube of the heat absorption plates at the left and right sides is connected to the corresponding vertical section.

5. A heat pump unit heat exchanger as claimed in claim 4, wherein both ends of the heat absorption tube are located on the same side of the housing.

6. A heat pump unit heat exchanger as claimed in claim 1, wherein the number of outlets is two.

7. A heat pump unit heat exchanger according to claim 1 or 2 or 3 or 4 or 5 or 6, wherein the fins are tapered from top to bottom.