CN112984797A

CN112984797A - Air energy heat pump outdoor unit convenient for rapid heat dissipation and method

Info

Publication number: CN112984797A
Application number: CN202110222315.0A
Authority: CN
Inventors: 庄小芳
Original assignee: Fujian Xinyihang Fire Fighting Technology Co ltd
Current assignee: Beijing Nuojin Weiye Mechanical And Electrical Equipment Installation Engineering Co ltd
Priority date: 2021-02-28
Filing date: 2021-02-28
Publication date: 2021-06-18
Anticipated expiration: 2041-02-28
Also published as: CN112984797B

Abstract

The invention relates to the technical field of air energy heat pump outdoor units, in particular to an air energy heat pump outdoor unit convenient for rapid heat dissipation and a method thereof. The outer case is designed with two opposite space environments, namely a low-pressure cavity and a high-pressure cavity, and the conversion of medium liquid between the high-pressure environment and the low-pressure environment is utilized to vaporize the solution and absorb heat.

Description

Air energy heat pump outdoor unit convenient for rapid heat dissipation and method

Technical Field

The invention relates to the technical field of air energy heat pump outdoor units, in particular to an air energy heat pump outdoor unit and a method convenient for rapid heat dissipation.

Background

The air energy water heater works according to the 'inverse Carnot' principle, specifically, an 'outdoor unit' is used as a heat exchanger to absorb heat from outdoor air, heat a low-boiling point working medium (refrigerant) and evaporate the low-boiling point working medium, refrigerant steam is compressed by a compressor to raise the temperature and enters a water tank, heat is released to water in the water tank and is condensed and liquefied, and then the water tank is throttled, depressurized and cooled to return to the outdoor heat exchanger to enter the next cycle.

Most of the existing outdoor units are provided with fans at one side of a refrigerant heat exchange tube, air is blown into the outdoor units to contact with the refrigerant heat exchange tube through the rotation of the fans, so that the air is in contact with the refrigerant heat exchange tube, heat in the air is transferred into refrigerants in the refrigerant heat exchange tube, the outdoor units absorb heat from outdoor air as heat exchangers, but the heat-absorbed air is difficult to discharge, the air in the outdoor units has poor fluidity, so that the heat exchange efficiency is low, and fan blades are large in size and have the defect of large noise in the high-speed rotation process; in the process of using the outdoor unit in hot days, the outdoor unit is used as a heat exchanger to absorb heat from outdoor air, and the work load of an air energy heat pump is high, but the prior art does not have a proper technical method for facilitating quick heat dissipation.

Disclosure of Invention

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

The present invention is directed to an air energy heat pump outdoor unit and a method for dissipating heat quickly, so as to solve the problems in the related art.

In order to achieve the purpose, the invention provides the following technical scheme:

an air energy heat pump outdoor unit convenient for rapid heat dissipation comprises a case, a heat pump mounting area and a cooling area are arranged in the case, a heat contact plate is arranged in the heat pump mounting area, an annular heat conduction frame is arranged on the heat contact plate, an annular guide pipe is arranged at the edge of the heat contact plate, a circulating pump is arranged on the annular guide pipe, a low-pressure cavity and a high-pressure cavity are respectively arranged in the cooling area, the cooling area is externally connected with a cooling water pipeline, a three-way change-over valve is arranged at the water delivery end of the cooling water pipeline, a heat energy medium pipe is arranged in the low-pressure cavity, the heat energy medium pipe is in an S-shaped curve bending and folding design, a water delivery pipeline is connected with the outer extension of the heat energy medium pipe and is provided with a cooling water inlet pipe, the cooling water inlet pipe is connected with the, the output pump is externally connected with a cooling water outlet pipe, the cooling water outlet pipe is externally connected with a return pipeline, the return pipeline is connected with the third end of the three-way change-over valve, medium liquid is arranged in the high-pressure cavity, a medium liquid input pipe is externally connected with the high-pressure cavity, the medium liquid input pipe is connected with the low-pressure cavity through a spraying pump, and a suction pump is further arranged at the bottom of the low-pressure cavity and connected with the high-pressure cavity through a medium liquid return pipe.

As a further scheme of the invention: the machine case is also provided with a vacuum pumping pump, and the vacuum pumping pump is connected with the low-pressure cavity through a vacuum pumping pipeline.

As a further scheme of the invention: the heat pump heat conduction device is characterized in that a heat pump heat conduction base plate is arranged in the middle of the annular heat conduction frame, an annular outer diffusion frame and a vertical staggered frame are respectively arranged on the periphery of the heat pump heat conduction base plate, a heat conduction gasket is arranged at the bottom of the annular outer diffusion frame and fixed with the heat contact plate, and the vertical staggered frame is contacted with the annular guide pipe through an outer edge heat conduction piece.

As a further scheme of the invention: the heat pump heat conduction substrate, the annular outer diffusion frame and the vertical staggered frame are all made of benign heat conduction metal.

As a further scheme of the invention: the outer edge heat conducting fins are wound on the annular guide pipe by adopting soft metal strips.

As a further scheme of the invention: and a secondary cooling pump is arranged on the other side of the thermal contact plate and is connected with the annular catheter through a drainage branch pipe.

As a still further scheme of the invention: the machine case is also internally provided with an air energy indoor machine connecting device, an internal connection alternating current pump is arranged at the air energy indoor machine connecting device, the high-pressure cavity is connected with the internal connection alternating current pump through an internal connection infusion pipeline, and the internal connection alternating current pump is connected with the high-pressure cavity through an external connection liquid return pipeline.

Compared with the prior art, the invention has the beneficial effects that:

the air-source heat pump system carries out heat conduction treatment on an air-source heat pump by contacting a hot contact plate with a heat pump installation area, two relative space environments of a low-pressure cavity and a high-pressure cavity are designed in an outer box, and the boiling point of medium liquid is reduced by utilizing the conversion of the medium liquid between the high-pressure environment and the low-pressure environment, so that the solution is vaporized and absorbs heat, the cooling treatment on a refrigerant water pipe is rapidly completed, and the effect of rapid and efficient refrigeration is achieved; the whole operation is energy-saving and environment-friendly, and the safety is high.

For the annular heat conduction frame, the heat pump heat conduction substrate and the heat pump are designed to carry out close heat conduction, and then the heat pump heat conduction substrate and the heat pump heat conduction substrate are subjected to three-dimensional diffusion through the annular outer diffusion frame and the vertical staggered frame; the annular outer diffusion frame carries out heat exchange treatment through hot contact plate and annular pipe, and outer edge conducting strip adopts soft metal strip winding also with annular pipe itself, has avoided the heat conduction point to concentrate in one, causes the temperature shock for the risk of metal deformation.

For the heating type air energy, the high-pressure cavity and the heating device of the air energy inner machine can form a circulating structure through the air energy inner machine connecting device, so that heat energy generated after the medium liquid is liquefied and released heat is effectively utilized to carry out heating operation, and the waste of energy is avoided.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Clearly, such objects and other objects of the present invention will become more apparent from the detailed description of the preferred embodiments hereinafter set forth in the various drawings and drawings.

These and other objects, features and advantages of the present invention will become more apparent from the following detailed description of one or more preferred embodiments of the invention, as illustrated in the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

In the drawings, like parts are designated with like reference numerals, and the drawings are schematic and not necessarily drawn to scale.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, it is obvious that the drawings in the following description are only one or several embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to such drawings without creative efforts.

Fig. 1 is a schematic view of the outer housing of the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic structural view of the annular heat conducting frame according to the present invention.

Fig. 4 is a schematic structural diagram of a fourth embodiment of the present invention.

In the figure: 1-case, 11-heat pump installation area, 12-cooling area, 21-heat contact plate, 22-annular heat conduction frame, 23-annular conduit, 24-circulating pump, 25-heat pump heat conduction substrate, 26-annular external diffusion frame, 27-vertical staggered frame, 28-external edge heat conduction sheet, 29-heat conduction gasket, 3-low pressure cavity, 31-cooling water pipeline, 32-three-way conversion valve, 33-heat energy medium pipe, 34-water pipeline, 35-cooling water inlet pipe, 36-input pump, 37-output pump, 38-cooling water outlet pipe, 39-return pipeline, 4-high pressure cavity, 41-medium liquid input pipe, 42-spray pump, 43-suction pump, 44-medium liquid return pipe, 5-vacuum pump, 51-vacuum pumping pipeline, 6-secondary cooling pump, 61-drainage branch pipe, 7-air energy indoor machine connecting device, 71-internal connection alternating flow pump, 72-internal connection infusion pipeline and 73-external connection liquid return pipeline.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, examples of which are shown in the drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements, unless otherwise indicated.

It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1 and 3, an air energy heat pump outdoor unit convenient for rapid heat dissipation includes a casing 1, a heat pump installation area 11 and a cooling area 12 are installed in the casing 1, a heat contact plate 21 is installed in the heat pump installation area 11, an annular heat conduction frame 22 is installed on the heat contact plate 21, an annular guide pipe 23 is installed at an edge of the heat contact plate 21, a circulation pump 24 is installed on the annular guide pipe 23, a low pressure chamber 3 and a high pressure chamber 4 are respectively installed in the cooling area 12, the cooling area 12 is externally connected with a cooling water pipe 31, a three-way switching valve 32 is installed at a water delivery end of the cooling water pipe 31, a heat energy medium pipe 33 is installed in the low pressure chamber 3, the heat energy medium pipe 33 is in an S-shaped curve folding design, a water delivery pipe 34 is connected to an outward extension of the heat energy medium pipe 33, the water delivery pipe 34 is provided with a cooling water inlet pipe 35, and the cooling water inlet pipe, the other side of ring conduit 23 is provided with output pump 37, output pump 37 is again external to have cooling outlet pipe 38, cooling outlet pipe 38 is external to have backflow pipeline 39, backflow pipeline 39 is connected with the third end of three-way change-over valve 32 again, the built-in medium liquid of high pressure chamber 4, high pressure chamber 4 is external to have medium liquid input tube 41, medium liquid input tube 41 is connected with low pressure chamber 3 through spray pump 42, the bottom in low pressure chamber 3 still is provided with suction pump 43, suction pump 43 is connected with high pressure chamber 4 through medium liquid back flow 44. The machine case 1 is further provided with a vacuum pumping pump 5, and the vacuum pumping pump 5 is connected with the low-pressure cavity 3 through a vacuum pumping pipeline 51.

The working principle of the invention is as follows: the air-source heat pump heat conduction treatment device is used for conducting heat conduction treatment on an air-source heat pump by contacting a heat contact plate 21 with a heat pump installation area 11, when in operation, cooling water (or related cooling solution) is firstly input through a cooling water pipeline 31, at the moment, a three-way change-over valve 32 keeps the cooling water pipeline 31 and a heat energy medium pipe 33 in a communicated state, the cooling water is butted with an annular guide pipe 23 through the heat energy medium pipe 33 (not working at present), a water pipeline 34 and a cooling water inlet pipe 35, so that the heat contact plate 21 is preliminarily cooled, the water liquid after the temperature of the heat contact plate 21 is naturally heated, then the water liquid is input into a cooling water outlet pipe 38 to flow back, at the moment, a return pipeline 39; so that the returned water is inputted to the heat energy medium pipe 33; meanwhile, the medium liquid is arranged in the high-pressure cavity 4, the medium liquid is input into the low-pressure cavity 3 in a spraying mode through the spraying pump 42, the low-pressure cavity 3 is vacuumized to form an ultra-low pressure state, so that the boiling point of the medium liquid in the environment of the low-pressure cavity 3 is greatly reduced, the medium liquid is sprayed into the environment of the low-pressure cavity 3 and is quickly converted into a vaporization state, the process is a heat absorption process, cooling water in the heat energy medium pipe 33 is rapidly cooled, the cooling water is output through the water conveying pipeline 34 to be secondarily cooled, the medium liquid is introduced into the high-pressure cavity 4 again to release heat and convert into liquid, and the reciprocating circulation achieves the effect of continuous cooling.

According to the application, the vacuumizing operation principle is effectively utilized, two relative space environments of the low-pressure cavity 3 and the high-pressure cavity 4 are designed in the outer case, and the medium liquid is converted between the high-pressure environment and the low-pressure environment, so that the boiling point of the medium liquid is reduced, the solution is vaporized and absorbs heat, the cooling treatment of the refrigerant water pipe is rapidly completed, and the rapid and efficient refrigeration effect is achieved; the whole operation is energy-saving and environment-friendly, and the safety is high.

This application design heat energy medium pipe 33 is "S" curve folding design of buckling to the medium liquid is inputed to low pressure chamber 3 in with the mode that sprays through spraying pump 42, thereby enlarges the area of contact of medium liquid and heat energy medium pipe 33, makes can the maximize improve the cooling strength in the short time.

Example two:

referring to fig. 3, this embodiment is a further optimization of the embodiment, on the basis of which, a heat pump heat conducting substrate 25 is disposed in the middle of the annular heat conducting frame 22, an annular outer diffusion frame 26 and a vertical staggered frame 27 are respectively disposed on the periphery of the heat pump heat conducting substrate 25, a heat conducting gasket 29 is disposed at the bottom of the annular outer diffusion frame 26 and fixed with the heat contacting plate 21, and the vertical staggered frame 27 is in contact with the annular conduit 23 through an outer edge heat conducting fin 28. The heat pump heat conducting base plate 25, the annular outer diffusion frame 26 and the vertical staggered frame 27 are all made of benign heat conducting metal. The outer edge heat-conducting fins 28 are wound on the annular duct 23 by using soft metal strips.

For the annular heat conduction frame 22, the heat pump heat conduction substrate 25 and the heat pump are designed to carry out close heat conduction, and then the heat pump heat conduction substrate and the heat pump heat conduction substrate are subjected to three-dimensional diffusion through the annular outer diffusion frame 26 and the vertical staggered frame 27; the annular outer diffusion frame 26 carries out heat exchange treatment with the annular guide pipe 23 through the thermal contact plate 21, and the outer edge heat conducting fins 28 are wound on the annular guide pipe 23 and the annular guide pipe 23, so that the risk of metal deformation caused by temperature shock due to the fact that heat conducting points are concentrated at one position is avoided.

Example three:

referring to fig. 2, the present embodiment is further optimized as an embodiment, on the basis of which a secondary cooling pump 6 is arranged on the other side of the thermal contact plate 21, and the secondary cooling pump 6 is connected with the annular conduit 23 through a drainage branch pipe 61. The annular conduit 23 and the secondary cooling pump 6 form a circulation loop through the branch drainage pipe 61, and the circulation loop is used for reducing the temperature of cooling water, so that the effect of auxiliary cooling is achieved.

Example four:

referring to fig. 4, as a further optimization of the embodiment, on the basis that the air energy indoor unit connection device 7 is further disposed in the chassis 1, an internal ac pump 71 is disposed at the air energy indoor unit connection device 7, the high-pressure chamber 4 is connected to the internal ac pump 71 through an internal engagement infusion pipeline 72, and the internal ac pump 71 is connected to the high-pressure chamber 4 through an external engagement liquid return pipeline 73.

This embodiment is applicable to the air energy (like air can water heater etc.) of heating type, can form circulation structure with high-pressure chamber 4 through the heating device of air energy internal unit connecting device 7 with the air energy internal unit to the heat energy that produces after effectively utilizing the liquefaction of medium liquid to release heat carries out the heating operation, avoids the waste of the energy.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The air energy heat pump outdoor unit convenient for rapid heat dissipation comprises a case (1), a heat pump mounting area (11) and a cooling area (12) are arranged in the case (1), a heat contact plate (21) is arranged in the heat pump mounting area (11), an annular heat conduction frame (22) is arranged on the heat contact plate (21), an annular guide pipe (23) is arranged at the edge of the heat contact plate (21), a circulating pump (24) is arranged on the annular guide pipe (23), the air energy heat pump outdoor unit is characterized in that a low-pressure cavity (3) and a high-pressure cavity (4) are respectively arranged in the cooling area (12), a cooling water pipeline (31) is externally connected with the cooling area (12), a three-way switching valve (32) is arranged at the water delivery end of the cooling water pipeline (31), a heat energy medium pipe (33) is arranged in the low-pressure cavity (3), and a water delivery pipeline (34) is externally connected, the water conveying pipeline (34) is provided with a cooling water inlet pipe (35), the cooling water inlet pipe (35) is connected with the annular guide pipe (23) through an input pump (36), the other side of the annular guide pipe (23) is provided with an output pump (37), the output pump (37) is externally connected with a cooling water outlet pipe (38), the cooling water outlet pipe (38) is externally connected with a return pipeline (39), the return pipeline (39) is connected with the third end of the three-way conversion valve (32), the medium liquid is arranged in the high-pressure cavity (4), the high-pressure cavity (4) is externally connected with a medium liquid input pipe (41), the medium liquid input pipe (41) is connected with the low-pressure cavity (3) through a spray pump (42), the bottom of the low-pressure cavity (3) is also provided with a suction pump (43), and the suction pump (43) is connected with the high-pressure cavity (4) through a medium liquid return pipe (44).

2. The outdoor unit of claim 1, wherein the heat energy medium pipe (33) is folded in an S-shaped curve.

3. The outdoor unit of claim 1, wherein a vacuum pump (5) is further disposed on the casing (1), and the vacuum pump (5) is connected to the low pressure chamber (3) through a vacuum pipe (51).

4. The outdoor unit of an air-source heat pump convenient for rapid heat dissipation as recited in claim 1, wherein a heat pump heat conducting base plate (25) is disposed in the middle of the annular heat conducting frame (22), an annular outer diffusion frame (26) and a vertical staggered frame (27) are respectively disposed on the periphery of the heat pump heat conducting base plate (25), a heat conducting gasket (29) is disposed at the bottom of the annular outer diffusion frame (26) to fix the annular outer diffusion frame to the heat contacting plate (21), and the vertical staggered frame (27) is in contact with the annular guiding pipe (23) through an outer edge heat conducting sheet (28).

5. The outdoor unit of claim 4, wherein the heat pump heat conductive base plate (25), the annular outer diffuser frame (26) and the vertically staggered frame (27) are made of benign heat conductive metal.

6. The outdoor unit of claim 4, wherein the outer edge heat-conducting fins (28) are made of soft metal strips and wound around the ring-shaped duct (23).

7. The outdoor unit of an air energy heat pump for facilitating rapid heat dissipation of any one of claims 1 to 6, wherein the other side of the thermal contact plate (21) is provided with a secondary cooling pump (6), and the secondary cooling pump (6) is connected with the annular duct (23) through a branch flow duct (61).

8. The outdoor unit of an air energy heat pump convenient for rapid heat dissipation according to any one of claims 1 to 6, wherein an air energy indoor unit connection device (7) is further disposed in the casing (1), an internal cross flow pump (71) is disposed at the air energy indoor unit connection device (7), the high-pressure chamber (4) is connected to the internal cross flow pump (71) through an internal connection infusion pipeline (72), and the internal cross flow pump (71) is connected to the high-pressure chamber (4) through an external connection liquid return pipeline (73).

9. A heat dissipation method of an air energy heat pump outdoor unit convenient for rapid heat dissipation is characterized by comprising the following procedures:

1) primary water circulation cooling: firstly, cooling water is input through a cooling water pipeline (31), at the moment, a three-way change-over valve (32) keeps the cooling water pipeline (31) and a heat energy medium pipe (33) in a communicated state, the cooling water primarily cools a heat contact plate (21) through a water delivery path, the cooled water of the heat contact plate (21) is naturally heated, and then the cooled water is output and reflows;

2) secondary water circulation cooling: the three-way change-over valve (32) keeps the return pipeline (39) and the heat energy medium pipe (33) in a communicated state; so that the returned water liquid is input into the heat energy medium pipe (33); meanwhile, medium liquid is arranged in the high-pressure cavity (4), the medium liquid is input into the low-pressure cavity (3) in a spraying mode through a spraying pump (42), the low-pressure cavity (3) is vacuumized to form an ultra-low pressure state, so that the boiling point of the medium liquid in the environment in the low-pressure cavity (3) is greatly reduced, the medium liquid is sprayed into the environment in the low-pressure cavity (3) and is rapidly converted into a vaporization state, the process is a heat absorption process, cooling water in the heat energy medium pipe (33) is rapidly cooled, the cooling water is output through a water conveying pipeline (34) to be secondarily cooled, and the medium liquid is introduced into the high-pressure cavity (4) to release heat and is converted into liquid;

and repeating the water circulation cooling step, and realizing the effect of continuous cooling by reciprocating circulation.