CN212720374U

CN212720374U - Evaporator for air source heat pump

Info

Publication number: CN212720374U
Application number: CN202021286576.6U
Authority: CN
Inventors: 王珂; 王小军
Original assignee: Hebei Huahang New Energy Development Group Co ltd
Current assignee: Hebei Huahang New Energy Development Group Co ltd
Priority date: 2020-07-04
Filing date: 2020-07-04
Publication date: 2021-03-16
Anticipated expiration: 2030-07-04

Abstract

The utility model relates to an evaporator for an air source heat pump, which comprises a base, an evaporator body and a solar auxiliary heating mechanism, wherein the evaporator body and the solar auxiliary heating mechanism are arranged on the base; the evaporator body comprises a heat exchange tube arranged on the base through two evaporator frame plates and a plurality of lower fins arranged on the heat exchange tube; the solar auxiliary heating mechanism comprises a supporting frame arranged on the base through a plurality of supports, an opening arranged on a bottom plate of the supporting frame, a heat collecting plate arranged at the opening, and a Fresnel lens cover plate arranged at the top of the supporting frame, wherein a plurality of upper fins are arranged below the heat collecting plate, and the upper fins are arranged above the lower fins. The utility model provides high heating efficiency when moving under the low temperature environment, the live time of extension air source heat pump makes it use in winter.

Description

Evaporator for air source heat pump

Technical Field

The utility model relates to an air source heat pump, concretely relates to evaporator for air source heat pump.

Background

An air source heat pump is an energy-saving device which utilizes high-level energy to enable heat to flow from low-level heat source air to a high-level heat source. The heat pump is convenient to use and low in installation cost, and becomes the most widely applied heat pump in various heat pump types. However, since the air source heat pump absorbs heat in the air and generates heat by applying work through the compressor, the air source heat pump has a great relationship with the ambient temperature, the higher the ambient temperature is, the more the heat carried in the air is, and the lower the ambient temperature is, the less the heat carried in the air is, so that in the winter in the north, the outdoor temperature is very low, but the heating capacity is constantly increased, the air source heat pump is often limited to use due to low heating efficiency, therefore, in the winter, the air source heat pump is usually in an idle state, and people still adopt electric auxiliary heat or coal for heating and supplying water.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide an evaporator for air source heat pump, it has improved the heating efficiency when the low temperature environment moves down, makes it use winter.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

an evaporator for an air source heat pump comprises a base, an evaporator body and a solar auxiliary heating mechanism, wherein the evaporator body and the solar auxiliary heating mechanism are arranged on the base;

the evaporator body comprises a heat exchange tube arranged on the base through two evaporator frame plates and a plurality of lower fins arranged on the heat exchange tube;

solar energy assists hot mechanism include set up in through a plurality of supports the carriage on the base, set up in opening on the carriage bottom plate set up in the heat collection board of opening part, and set up in the fresnel lens apron at carriage top, the below of heat collection board is provided with a plurality of upper fins, upper fins set up in the top of fin down, upper fins's bottom extends to one side of fin down and with fin butt down.

Furthermore, a heat storage pipeline is further arranged below the heat collecting plate, a heat storage material is arranged in the heat storage pipeline, the heat storage pipeline comprises a plurality of heat storage vertical pipes arranged below the heat collecting plate and heat storage horizontal pipes arranged at two ends of the heat storage vertical pipes and communicated with the heat storage vertical pipes, a heat preservation box covers a part, arranged below the heat collecting plate, of the heat storage vertical pipes, and the heat preservation box is fixedly arranged on the bottom wall of the heat collecting plate.

Furthermore, the heat storage pipelines are arranged outside the heat preservation box, and heat preservation layers are arranged on the parts of the heat preservation pipelines outside the heat preservation box.

Furthermore, the bottom of the base is hinged with a plurality of supporting legs through pin shafts.

Further, the legs are height adjustable legs.

Furthermore, the supporting legs comprise tubular upper supporting legs and tubular lower supporting legs inserted into the upper supporting legs, upper connecting plates are arranged above the lower supporting legs in the upper supporting legs, adjusting screws are arranged on the upper connecting plates in a rotating mode, lower connecting plates are arranged in the lower supporting legs, adjusting handles are arranged on the bottoms of the adjusting screws after the adjusting screws penetrate through the lower connecting plates, the adjusting screws are in threaded connection with the lower connecting plates, and operation openings are formed in the positions, corresponding to the adjusting handles, of the lower supporting legs.

Further, the base is arranged obliquely.

Further, the upper fin and the lower fin are welded and fixed.

Further, the heat collecting plate comprises a metal heat conducting plate and a heat absorbing coating arranged above the metal heat conducting plate.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses a set up solar energy in air source heat pump evaporator's top and assist hot mechanism to assist the last fin of hot mechanism and the lower fin butt of evaporimeter body with solar energy, assist the heat collecting plate of hot mechanism when solar energy and absorb the heat back through the heat-conduction of last fin and lower fin directly with the heat supply for the heat exchange tube, be used for the heating of refrigerant in the heat exchange tube, it has improved the heating efficiency of air source heat pump when using in the white day in winter.

Drawings

Fig. 1 is a perspective view of an embodiment of the present invention;

fig. 2 is a front view of an embodiment of the present invention;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 3;

FIG. 4 is an enlarged view of FIG. 4 at B;

fig. 5 is a schematic structural view of a leg according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view taken along the line C-C of FIG. 5;

in the figure: 1. the heat-collecting type evaporator comprises a base, a base 2, an evaporator body 3, a heat-collecting plate 4, a heat-conducting plate 5 and a heat-absorbing coating; 9. the evaporator comprises an evaporator frame plate 10, heat exchange tubes 11 and lower fins; 12. the solar auxiliary heating device comprises a solar auxiliary heating mechanism, 13, a support, 14, a support frame, 16, a Fresnel lens cover plate, 17, upper fins, 19, a heat storage material, 20, a heat storage vertical pipe, 21, a heat storage transverse pipe, 22, a heat preservation box, 23, a heat conduction block, 24, a sealing cap, 25, support legs, 25-1, upper support legs, 25-2, lower support legs, 25-3, an upper connecting plate, 25-4, an adjusting screw rod, 25-5, a lower connecting plate, 25-6, an adjusting handle, 25-7, an operation opening, 25-8 and a positioning lug; 25-9 and a pin shaft.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 6, the embodiment of the evaporator for the air source heat pump of the present invention includes a base 1, an evaporator body 2 and a solar auxiliary heating mechanism 12 disposed on the base 1, wherein the solar auxiliary heating mechanism 12 is disposed above the evaporator body 2; the evaporator body 2 comprises a heat exchange tube 10 arranged on the base 1 through two evaporator frame plates 9, and a plurality of lower fins 11 arranged on the heat exchange tube 10; solar energy assists hot mechanism 12 include through a plurality of supports 13 set up in carriage 14 on the base 1, set up in opening on the carriage 14 bottom plate sets up in the heat collection plate 3 of opening part, and set up in the fresnel lens apron 16 at carriage 14 top, the below of heat collection plate 3 is provided with a plurality of upper fins 17, upper fins 17 set up in the top of fin 11 down, upper fins's bottom extends to one side of fin down and with fin 11 butt down. The utility model discloses a top at air source heat pump evaporimeter sets up solar energy and assists hot mechanism 12 to assist the last fin 17 of hot mechanism 12 and the 11 butts of lower fin of evaporimeter body 2 with solar energy, assist behind the heat collecting plate 3 of hot mechanism 12 absorbs the heat of solar energy through last fin 17 and the heat-conduction of lower fin 11 directly with the heat supply for heat exchange tube 10 when solar energy, be used for the heating of refrigerant in heat exchange tube 10, it has improved the heating efficiency of air source heat pump when using in the white day in winter.

Further, the outer surface of the supporting frame 14 is provided with an insulating layer, so that heat is prevented from being dissipated outwards from the supporting frame 14.

As an embodiment of the utility model relates to an evaporator for air source heat pump, the below of thermal-arrest board 3 still is provided with the heat accumulation pipeline, be provided with heat accumulation material 19 in the heat accumulation pipeline, the heat accumulation pipeline including set up in a plurality of heat accumulation standpipe 20 of thermal-arrest board 3 below, and set up in 20 both ends of heat accumulation standpipe, intercommunication the heat accumulation violently pipe 21 of heat accumulation standpipe 20, heat accumulation standpipe 20 set up in the part cover of thermal-arrest board 3 below is equipped with heat preservation box 22, heat preservation box 22 fixed set up in on the diapire of thermal-arrest board 3. The utility model discloses heat mechanism 12 is assisted to solar energy is through setting up the heat accumulation pipeline in the below of thermal-arrest board 3, and set up heat accumulation material 19 in the heat accumulation pipeline, there is under the sun condition daytime, adopt heat accumulation material 19 to accumulate heat, after the heat accumulation, when under the condition that no sun or sunlight are weak, heat in the heat accumulation material 19 passes through thermal-arrest board 3, go up fin 17, the heat conductivility of lower fin 11 transmits heat exchange tube 10, be used for the heating of refrigerant in heat exchange tube 10, thereby make even if under the no sun condition, air source heat pump also can keep higher heating efficiency in the certain time, the live time of air source heat pump has been prolonged.

Further, a heat conduction block 23 is arranged in the heat preservation box 22, the upper surface of the heat conduction block 23 is abutted to the lower surface of the heat collection plate 3, a strip-shaped through hole is formed in the center of the heat conduction block 23, and the heat storage vertical pipe is arranged in the strip-shaped through hole. The arrangement of the heat conduction block 23 increases the solid conduction area between the heat accumulation pipe and the heat collection plate 3, which is more efficient than the heat conduction of gas.

Further, the parts of the heat storage pipelines arranged outside the heat preservation box 22 are all provided with heat preservation layers.

As an embodiment of the evaporator for the air source heat pump of the present invention, the bottom of the base 1 is hinged with a plurality of legs 25 through pins 25-9.

Further, the leg 25 is a height-adjustable leg 25. The inclination angle of the evaporator can be adjusted by adjusting the height of the legs 25 so that it can receive the solar rays to the maximum extent.

Furthermore, the supporting legs 25 comprise tubular upper supporting legs 25-1 and tubular lower supporting legs 25-2 inserted into the upper supporting legs 25-1, upper connecting plates 25-3 are arranged above the lower supporting legs 25-2 in the upper supporting legs 25-1, adjusting screws 25-4 are rotatably arranged on the upper connecting plates 25-3, lower connecting plates 25-5 are arranged in the lower supporting legs 25-2, adjusting handles 25-6 are arranged after the bottoms of the adjusting screws 25-4 penetrate through the lower connecting plates 25-5, the adjusting screws 25-4 are in threaded connection with the lower connecting plates 25-5, and operation ports 25-7 are formed in the lower supporting legs 25-2 corresponding to the adjusting handles 25-6.

Furthermore, the inner wall of the upper supporting leg 25-1 is provided with a positioning bump 25-8, the outer wall of the lower supporting leg 25-2 is provided with a positioning groove, and the positioning bump 25-8 is arranged in the positioning groove and is in sliding fit along the positioning groove.

Further, the base 1 is arranged obliquely.

Further, the upper fin 17 and the lower fin 11 are fixed by welding.

Further, both ends of the heat storage pipe are provided with sealing caps 24 for opening or closing the heat storage pipe.

As an embodiment of the evaporator for the air source heat pump of the present invention, the heat storage material 19 is any one of a phase change heat storage material, a thermochemical heat storage material, or an adsorption heat storage material.

Further, a pressure relief valve is further arranged on the heat storage pipeline.

As an embodiment of the present invention, the heat collecting plate 15 includes a heat conducting plate 15-1, and a heat absorbing coating 15-2 disposed above the heat conducting plate 15-1.

Furthermore, the heat conducting plate 15-1, the heat conducting block 23-1, the heat storage vertical tube 20, the upper fin 17 and the lower fin 11 are made of metal heat conducting materials such as copper and aluminum.

The utility model discloses a theory of operation:

the arrangement of the lower fins 11 of the evaporator increases the contact area between the heat exchange tube 10 and the air, and when the evaporator body 2 works, the heat is absorbed from the air by utilizing the evaporation effect of the refrigerant fluid in the heat exchange tube 10;

in the presence of the sun during the daytime, the heat collecting plate 3 absorbs the heat radiation of the sun and transmits a portion of the absorbed heat to the heat exchange tube 10 of the evaporator body 2 via the lower fin 11 and the upper fin 17, exchanges heat with the refrigerant fluid in the heat exchange tube 10, thereby reducing the influence of the low-temperature environment on the heating efficiency of the air source heat pump, and simultaneously, a part of the heat absorbed in the heat collecting plate 3 is transferred to the heat storage material 19 in the heat storage pipe through the heat conducting block 23, and heat is stored by the heat storage material 19, in the absence of the sun or in the case of weak sunlight, the heat in the heat storage material 19 is transferred to the heat exchange tube 10 through the heat conduction performance of the heat collecting plate 3, the upper fins 17 and the lower fins 11, for heating the refrigerant in the heat exchange tube 10, thereby enabling the air source heat pump to operate for a certain period of time at a high heating efficiency by virtue of the heat that can be stored in the heat storage material 19 even in the absence of the sun.

The above-described embodiments are merely preferred examples of the present invention and are not exhaustive of the possible implementations of the present invention. Any obvious modifications to the above would be obvious to those of ordinary skill in the art, but would not bring the invention so modified beyond the spirit and scope of the present invention.

Claims

1. The evaporator for the air source heat pump is characterized by comprising a base (1), an evaporator body (2) and a solar auxiliary heating mechanism (12) which are arranged on the base (1), wherein the solar auxiliary heating mechanism (12) is arranged above the evaporator body (2);

the evaporator body (2) comprises a heat exchange tube (10) arranged on the base (1) through two evaporator frame plates (9), and a plurality of lower fins (11) arranged on the heat exchange tube (10);

solar energy assists hot mechanism (12) including set up in through a plurality of supports (13) braced frame (14) on base (1), set up in opening on braced frame (14) bottom plate, set up in the thermal-arrest board (3) of opening part, and set up in fresnel lens apron (16) at braced frame (14) top, the below of thermal-arrest board (3) is provided with a plurality of upper fins (17), upper fins (17) set up in the top of fin (11) down, the bottom of upper fins (17) extends to one side of fin (11) down, and with fin (11) butt down.

2. The evaporator for the air source heat pump according to claim 1, wherein a heat accumulation pipeline is further disposed below the heat collection plate (3), a heat accumulation material (19) is disposed in the heat accumulation pipeline, the heat accumulation pipeline comprises a plurality of heat accumulation vertical pipes (20) disposed below the heat collection plate (3), and a heat accumulation horizontal pipe (21) disposed at two ends of the heat accumulation vertical pipes (20) and communicated with the heat accumulation vertical pipes (20), a portion of the heat accumulation vertical pipes (20) disposed below the heat collection plate (3) is covered with a heat preservation box (22), and the heat preservation box (22) is fixedly disposed on a bottom wall of the heat collection plate (3).

3. The evaporator for the air source heat pump according to claim 2, wherein the portions of the heat storage pipes arranged outside the heat preservation box (22) are provided with heat preservation layers.

4. Evaporator for an air source heat pump according to claim 1, characterized in that the bottom of the base (1) is hinged with legs (25) by pins (25-9).

5. Evaporator for an air source heat pump according to claim 4, characterised in that the legs (25) are height-adjustable legs (25).

6. The evaporator for the air source heat pump according to claim 5, wherein the supporting leg (25) comprises a tubular upper supporting leg (25-1) and a tubular lower supporting leg (25-2) inserted into the upper supporting leg (25-1), an upper connecting plate (25-3) is arranged in the upper supporting leg (25-1) above the lower supporting leg (25-2), an adjusting screw (25-4) is rotatably arranged on the upper connecting plate (25-3), a lower connecting plate (25-5) is arranged in the lower supporting leg (25-2), an adjusting handle (25-6) is arranged after the bottom of the adjusting screw (25-4) passes through the lower connecting plate (25-5), and the adjusting screw (25-4) is in threaded connection with the lower connecting plate (25-5), an operation opening (25-7) is formed in the position, corresponding to the adjusting handle (25-6), of the lower supporting leg (25-2).

7. Evaporator for an air source heat pump according to claim 1, characterised in that the base (1) is arranged obliquely.

8. The evaporator for the air source heat pump according to claim 1, wherein the upper fin (17) and the lower fin (11) are welded and fixed.

9. Evaporator for an air source heat pump according to claim 1, characterised in that the heat collection plate (3) comprises a metallic heat-conducting plate (4), and a heat-absorbing coating (5) arranged above the metallic heat-conducting plate (4).