Heat pump unit using fin-free heat exchanger

Abstract

The heat pump unit using the fin-free heat exchanger comprises a machine body and the heat exchanger, the heat exchanger comprises a plurality of heat absorption pipes, the heat absorption pipes sequentially surround the right side, the rear side and the left side of the machine body, and the inlet ends and the outlet ends of the heat absorption pipes are arranged on the right side of the machine body; the air suction end of the compressor communicates with the outlet ends of the heat absorption pipes, and the outlet end of the condenser communicates with the inlet ends of the heat absorption pipes. Wherein the plurality of heat absorption pipes are sequentially arranged into a first group of pipelines, a second group of pipelines and a third group of pipelines from inside to outside; the first group of pipelines and the third group of pipelines are transversely aligned, and the second group of pipelines and the first group of pipelines or the third group of pipelines are transversely staggered, so that the heat absorption area of the heat absorption pipe is increased; the manufacturing process of the heat exchanger is reduced, and the operation efficiency of the heat pump unit is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pumps, in particular to a heat pump unit using a finless heat exchanger. Background Art

[0002] In the current heat pump unit, when air flows through the heat exchanger, its heat is first absorbed by the fins, and then this part of the heat is absorbed by the medium in the heat absorption tube, causing the fin temperature to drop. In this process, the water vapor in the air will condense on the surface of the fins, forming water droplets and covering the fins. At the same time, the water droplets will also cover the heat absorption tube between the two fins during the flow process, and will cover it for a long time under the action of water tension, which not only reduces the effective heat absorption area of ​​the fins and the heat absorption tube, but also affects the operating efficiency of the entire heat pump unit. Utility Model Content

[0003] In order to overcome the defects of the above-mentioned prior art, the utility model provides a heat pump unit using a finless heat exchanger, by surrounding the heat exchanger on the right side, the rear side and the left side of the body, and dividing the heat absorption tube into a first group of tubes, a second group of tubes and a third group of tubes, the first group of tubes and the third group of tubes are horizontally aligned, and the second group of tubes are staggered with the first group of tubes or the third group of tubes to lengthen the length of the heat absorption tube, thereby increasing the heat absorption area of ​​the heat absorption tube. At the same time, since there are no fins on the heat absorption tube and multiple groups of tubes are staggered, not only is it avoided that condensed water droplets cover the heat absorption tube under the action of tension to affect the heat absorption of the heat absorption tube, but also the production and manufacturing process of the heat exchanger is reduced, and the operating efficiency of the heat pump unit is ensured.

[0004] The technical solution adopted by the utility model to solve the problem is:

[0005] A heat pump unit using a finless heat exchanger, comprising:

[0006] A machine body, in which a compressor and a condenser are arranged, and the exhaust end of the compressor is connected to the inlet end of the condenser;

[0007] A heat exchanger, comprising a plurality of heat absorbing tubes, the plurality of heat absorbing tubes sequentially surrounding the right side, the rear side and the left side of the machine body, and the inlet ends and the outlet ends of the plurality of heat absorbing tubes are both arranged on the right side of the machine body; the suction end of the compressor is connected to the outlet ends of the plurality of heat absorbing tubes, and the outlet end of the condenser is connected to the inlet ends of the plurality of heat absorbing tubes;

[0008] Among them, the plurality of heat absorption tubes are arranged in sequence from the inside to the outside of the body as a first group of pipes, a second group of pipes and a third group of pipes; the first group of pipes and the third group of pipes are arranged transversely aligned, and the second group of pipes are arranged transversely staggered with the first group of pipes or the third group of pipes.

[0009] Furthermore, the heat exchanger further comprises a first bracket and a second bracket, wherein the first bracket is vertically arranged on the right side of the body, and the second bracket is vertically arranged on the left side of the body.

[0010] Furthermore, it also includes a gas-liquid separation tank, which is arranged between the suction end of the compressor and the inlet ends of the several heat absorption tubes, and the inlet of the gas-liquid separation tank is connected with the inlet ends of the several heat absorption tubes through a conduit, and the outlet of the gas-liquid separation tank is connected with the suction end of the compressor.

[0011] Furthermore, it also includes a water tank, a water storage cavity is opened in the water tank, the condenser is arranged in the water storage cavity, and the condenser is provided with a cold water inlet end and a hot water outlet end arranged up and down; the hot water outlet end of the condenser is located at the bottom of the water storage cavity and is connected to the water storage cavity.

[0012] Furthermore, a cold water joint and a hot water joint are arranged up and down on the right side of the body; the cold water inlet end of the condenser is located at the top of the water storage chamber and is connected to the cold water joint through a cold water inlet pipe; the hot water joint is connected to the top of the water storage chamber through a hot water outlet pipe.

[0013] Furthermore, a heat preservation cavity is provided in the water tank, which is located outside the water storage cavity and is used to fill with heat preservation material, and the heat preservation cavity surrounds the water storage cavity.

[0014] Furthermore, the water tank is provided with a liquid level gauge located on the right side of the body, the top end of the liquid level gauge is communicated with the top of the water storage cavity, and the bottom end of the liquid level gauge is communicated with the bottom of the water storage cavity.

[0015] Furthermore, the heat exchanger surrounds the compressor, the condenser and the gas-liquid separation tank; and four pressure gauges arranged at intervals in a vertical shape are provided on the front side of the machine body.

[0016] Furthermore, the compressor is provided with two and is spaced apart at the front side of the machine body, and both the suction end and the exhaust end of the two compressors are provided with a stop valve for detecting the medium pressure, and the stop valve is electrically connected to the pressure gauge.

[0017] Furthermore, it also includes a fan assembly, wherein the fan assembly is provided with two fans and arranged at intervals on the top of the body, the fan assembly includes a wind shield net and a fan, the fan includes a driving motor and a fan blade, the driving motor is arranged at the center of the wind shield net, and the fan blade is covered by the wind shield net;

[0018] The air inlet end of the fan is located at the top of the wind cover net, and the air outlet end of the fan is located in the body.

[0019] In summary, the utility model uses a heat pump unit with a finless heat exchanger. The heat exchanger is surrounded by the right side, the rear side and the left side of the machine body, and the heat absorption tubes are divided into a first group of tubes, a second group of tubes and a third group of tubes. The first group of tubes and the third group of tubes are horizontally aligned, and the second group of tubes are staggered with the first group of tubes or the third group of tubes to lengthen the length of the heat absorption tube, thereby increasing the heat absorption area of ​​the heat absorption tube. At the same time, since there are no fins on the heat absorption tube and multiple groups of tubes are staggered, it not only avoids condensed water droplets covering the heat absorption tube under the action of tension to affect the heat absorption of the heat absorption tube, but also reduces the production process of the heat exchanger and ensures the operation efficiency of the heat pump unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a heat pump unit using a finless heat exchanger according to the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of a heat pump unit using a finless heat exchanger according to the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of a heat exchanger in a heat pump unit using a finless heat exchanger according to the utility model;

[0023] Figure 4 for Figure 3 Enlarged schematic diagram of part A in the middle.

[0024] The meanings of the reference numerals are as follows:

[0025] 1. Machine body; 11. Base; 12. Pressure gauge; 13. Hot water connector; 14. Cold water connector; 2. Compressor; 21. Stop valve; 3. Condenser; 4. Heat exchanger; 41. Heat absorption tube; 411. First set of pipelines; 412. Second set of pipelines; 413. Third set of pipelines; 42. First bracket; 43. Second bracket; 5. Gas-liquid separation tank; 6. Water tank; 61. Water storage chamber; 611. Hot water outlet pipe; 612. Cold water inlet pipe; 62. Insulation chamber; 63. Liquid level meter; 7. Economic tank; 8. Fan assembly; 81. Wind hood net; 82. Drive motor. DETAILED DESCRIPTION

[0026] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the modules or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0029] like Figure 1-4 A heat pump unit using a finless heat exchanger is shown, comprising a body 1 and a heat exchanger 4, wherein a compressor 2 and a condenser 3 are arranged inside the body 1, and a base 11 is arranged at the bottom of the body 1, the compressor 2 is arranged on the base 11, and the exhaust end of the compressor 2 is connected to the inlet end of the condenser 3; the heat exchanger 4 is arranged on the base 11 and comprises a plurality of heat absorption pipes 41, the plurality of heat absorption pipes 41 surround the right side, the rear side and the left side of the body 1 in sequence, and the inlet end and the outlet end of the plurality of heat absorption pipes 41 are both provided with It is arranged on the right side of the machine body 1; the suction end of the compressor 2 is connected to the outlet end of the plurality of heat absorption tubes 41, and the outlet end of the condenser 3 is connected to the inlet end of the plurality of heat absorption tubes 41; wherein the plurality of heat absorption tubes 41 are arranged in sequence from the inside to the outside of the machine body 1 as a first group of tubes 411, a second group of tubes 412 and a third group of tubes 413; the first group of tubes 411 and the third group of tubes 413 are arranged in lateral alignment, and the second group of tubes 412 and the first group of tubes 411 or the third group of tubes 413 are arranged in lateral staggered arrangement.

[0030] On the basis of the above structure, when the heat pump unit of the present invention is used, the heat exchanger 4 surrounds the right side, the rear side and the left side of the body 1, and the heat absorption tube 41 is divided into a first group of tubes 411, a second group of tubes 412 and a third group of tubes 413. The first group of tubes 411 and the third group of tubes 413 are aligned horizontally, and the second group of tubes 412 and the first group of tubes 411 or the third group of tubes 413 are staggered to lengthen the length of the heat absorption tube 41, thereby increasing the heat absorption area of ​​the heat absorption tube 41.

[0031] It should be noted that the heat absorption tube 41 is made of pure copper; wherein, the high-temperature medium discharged from the exhaust end of the compressor 2 is cooled down after the heat release effect of the condenser 3 and enters the heat absorption tube 41, and the medium in the heat absorption tube 41 absorbs heat in the air through the outer wall of the heat absorption tube 41, and at the same time, the air temperature of the outer wall of the heat absorption tube 41 is reduced to form condensed water droplets and adhere to the outer wall of the heat absorption tube 41. Since the heat absorption tube 41 is made of pure copper and has strong hydrophobicity, and secondly, no fins are provided on the heat absorption tube 41, therefore, the condensed water droplets will gather at the bottom end of the heat absorption tube 41 under the action of the tubular curved surface and gravity and fall, thereby avoiding the condensed water droplets covering the heat absorption tube 41 under the action of tension to affect the heat absorption of the heat absorption tube 41, and also reducing the production and manufacturing process of the heat exchanger 4, and ensuring the operating efficiency of the heat pump unit.

[0032] Specifically, the heat exchanger 4 further includes a first bracket 42 and a second bracket 43 . The first bracket 42 is vertically arranged on the right side of the body 1 , and the second bracket 43 is vertically arranged on the left side of the body 1 .

[0033] Furthermore, the heat pump unit using a finless heat exchanger of the utility model also includes a gas-liquid separation tank 5, which is arranged between the suction end of the compressor 2 and the inlet ends of the plurality of heat absorption tubes 41, and the inlet of the gas-liquid separation tank 5 is connected to the inlet ends of the plurality of heat absorption tubes 41 through a conduit, and the outlet of the gas-liquid separation tank 5 is connected to the suction end of the compressor 2.

[0034] Specifically, the heat pump unit using a finless heat exchanger in the utility model also includes a water tank 6, a water storage chamber 61 is opened in the water tank 6, the condenser 3 is arranged in the water storage chamber 61, and the condenser 3 is provided with a cold water inlet end and a hot water outlet end arranged up and down; the hot water outlet end of the condenser 3 is located at the bottom of the water storage chamber 61 and is connected to the water storage chamber 61.

[0035] Furthermore, a cold water joint 14 and a hot water joint 13 are arranged vertically on the right side of the machine body 1; the cold water inlet end of the condenser 3 is located at the top of the water storage chamber 61 and is connected to the cold water joint 14 through a cold water inlet pipe 612; the hot water joint 13 is connected to the top of the water storage chamber 61 through a hot water outlet pipe 611. The water tank 6 is also provided with an insulation chamber 62 located outside the water storage chamber 61 and used to fill insulation materials, and the insulation chamber 62 surrounds the water storage chamber 61.

[0036] Specifically, the water tank 6 is provided with a liquid level gauge 63 located on the right side of the body 1 , the top end of the liquid level gauge 63 is communicated with the top of the water storage chamber 61 , and the bottom end of the liquid level gauge 63 is communicated with the bottom of the water storage chamber 61 .

[0037] It should be noted that when in use, cold water enters from the cold water joint 14, and enters the bottom of the water tank 6 through the cold water inlet pipe 612 and fills the water tank 6. It can be observed from the liquid level gauge 63 on the right side of the body 1. After the medium absorbs heat through the heat absorption tube 41 of the heat exchanger 4, it enters the gas-liquid separation tank 5 to separate the gaseous medium and enters the compressor 2 from the suction end of the compressor 2 to be pressurized to form a high-temperature medium. The high-temperature medium then enters the condenser 3. The water in the water tank 6 close to the condenser 3 will absorb the temperature of the medium and form hot water floating on the top of the water tank 6. The hot water can flow to the hot water joint 13 through the hot water outlet pipe 611 connected to the top of the water tank 6.

[0038] Furthermore, the heat exchanger 4 surrounds the compressor 2, the condenser 3 and the gas-liquid separation tank 5; four pressure gauges 12 arranged vertically and spaced apart are provided on the front side of the machine body 1.

[0039] Among them, the compressor 2 is provided with two and is arranged at intervals on the front side of the body 1. The suction end and the exhaust end of the two compressors 2 are provided with a stop valve 21 for detecting the medium pressure. The stop valve 21 is electrically connected to the pressure gauge 12. The user can know the pressure values ​​of the suction end and the exhaust end of the compressor 2 in time through the pressure gauge 12.

[0040] It should be noted that an economizer 7 is also provided in the machine body 1 , one end of the economizer 7 is connected to the suction end of the compressor 2 , and the other end of the economizer 7 is connected to the condenser 3 and the heat exchanger 4 .

[0041] Furthermore, the heat pump unit using a finless heat exchanger in the utility model also includes a fan assembly 8, two fan assemblies 8 are provided and arranged at intervals on the top of the body 1, the fan assembly 8 includes a wind cover net 81 and a fan, the fan includes a drive motor 82 and fan blades, the drive motor 82 is arranged at the center of the wind cover net 81, and the wind cover net 81 covers the fan blades; the air inlet end of the fan is located at the top of the wind cover net 81, and the air outlet end of the fan is located inside the body 1.

[0042] Specifically, when in use, the driving motor 82 draws external air into the body 1 and drives the air flow in the body 1, thereby avoiding overheating of the compressor 2 in the body 1 and affecting the service life of the compressor 2. At the same time, it can also dissipate heat from the inside of the body 1 and dissipate the heat inside the body 1 from the gap between the heat absorption tube 41 of the heat exchanger 4. The heat absorption tube 41 can also absorb the heat dissipated from the inside of the body 1, thereby improving the operating efficiency of the heat pump unit.

[0043] In summary, the utility model uses a heat pump unit with a finless heat exchanger. The heat exchanger 4 is surrounded by the right side, the rear side and the left side of the body 1, and the heat absorption tube 41 is divided into a first group of tubes 411, a second group of tubes 412 and a third group of tubes 413. The first group of tubes 411 and the third group of tubes 413 are horizontally aligned, and the second group of tubes 412 and the first group of tubes 411 or the third group of tubes 413 are staggered to lengthen the heat absorption tube 41, thereby increasing the heat absorption area of ​​the heat absorption tube 41. At the same time, since there are no fins on the heat absorption tube 41 and multiple groups of tubes are staggered, it not only avoids the condensed water droplets covering the heat absorption tube 41 under the action of tension to affect the heat absorption of the heat absorption tube 41, but also reduces the production process of the heat exchanger 4 and ensures the operation efficiency of the heat pump unit.

[0044] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0045] It should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the modules or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0046] In addition, in the description of the present utility model, "multiple" and "several" mean two or more than two, unless otherwise clearly and specifically defined.

[0047] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A heat pump unit using a finless heat exchanger, characterized in that: include: A machine body, in which a compressor and a condenser are arranged, and the exhaust end of the compressor is connected to the inlet end of the condenser; A heat exchanger, comprising a plurality of heat absorbing tubes, the plurality of heat absorbing tubes sequentially surrounding the right side, the rear side and the left side of the machine body, and the inlet ends and the outlet ends of the plurality of heat absorbing tubes are both arranged on the right side of the machine body; the suction end of the compressor is connected to the outlet ends of the plurality of heat absorbing tubes, and the outlet end of the condenser is connected to the inlet ends of the plurality of heat absorbing tubes; Among them, the plurality of heat absorption tubes are arranged in sequence from the inside to the outside of the body as a first group of pipes, a second group of pipes and a third group of pipes; the first group of pipes and the third group of pipes are arranged transversely aligned, and the second group of pipes are arranged transversely staggered with the first group of pipes or the third group of pipes.

2. The heat pump unit using a finless heat exchanger according to claim 1, characterized in that: The heat exchanger further includes a first bracket and a second bracket, wherein the first bracket is vertically arranged on the right side of the body, and the second bracket is vertically arranged on the left side of the body.

3. The heat pump unit using a finless heat exchanger according to claim 1, characterized in that: It also includes a gas-liquid separation tank, which is arranged between the suction end of the compressor and the inlet ends of the plurality of heat absorption tubes, and the inlet of the gas-liquid separation tank is connected with the inlet ends of the plurality of heat absorption tubes through a conduit, and the outlet of the gas-liquid separation tank is connected with the suction end of the compressor.

4. A heat pump unit using a finless heat exchanger according to any one of claims 1 to 3, characterized in that: It also includes a water tank, which has a water storage cavity. The condenser is arranged in the water storage cavity, and the condenser is provided with a cold water inlet end and a hot water outlet end arranged up and down; the hot water outlet end of the condenser is located at the bottom of the water storage cavity and is connected to the water storage cavity.

5. The heat pump unit using a finless heat exchanger according to claim 4, characterized in that: A cold water joint and a hot water joint are arranged up and down on the right side of the body; the cold water inlet end of the condenser is located at the top of the water storage chamber and is connected to the cold water joint through a cold water inlet pipe; the hot water joint is connected to the top of the water storage chamber through a hot water outlet pipe.

6. The heat pump unit using a finless heat exchanger according to claim 5, characterized in that: The water tank is also provided with a heat preservation cavity located outside the water storage cavity and used for filling with heat preservation material, and the heat preservation cavity surrounds the water storage cavity.

7. The heat pump unit using a finless heat exchanger according to claim 6, characterized in that: The water tank is provided with a liquid level gauge located on the right side of the body, the top end of the liquid level gauge is communicated with the top of the water storage cavity, and the bottom end of the liquid level gauge is communicated with the bottom of the water storage cavity.

8. The heat pump unit using a finless heat exchanger according to claim 3, characterized in that: The heat exchanger surrounds the compressor, the condenser and the gas-liquid separation tank; the front side of the machine body is provided with four pressure gauges arranged at intervals in a vertical shape.

9. The heat pump unit using a finless heat exchanger according to claim 8, characterized in that: The compressor is provided with two and is arranged at intervals on the front side of the machine body. The suction end and the exhaust end of the two compressors are both provided with a stop valve for detecting the medium pressure, and the stop valve is electrically connected to the pressure gauge.

10. The heat pump unit using a finless heat exchanger according to any one of claims 1 to 3, characterized in that: It also includes a fan assembly, wherein the fan assembly is provided with two fans and arranged at intervals on the top of the machine body. The fan assembly includes a wind shield net and a fan, and the fan includes a driving motor and a fan blade. The driving motor is arranged at the center of the wind shield net, and the fan blade is covered by the wind shield net; The air inlet end of the fan is located at the top of the wind cover net, and the air outlet end of the fan is located in the body.

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