Double-evaporation condensation external unit of energy-saving air conditioner

Abstract

The utility model discloses an energy-saving air conditioner double-evaporation condensation outdoor unit which comprises a shell, an evaporator, a condenser, an evaporator, a condenser, a condenser and an evaporator. The shell is provided with an air inlet and an air outlet. The wet curtain is arranged at the air inlet; the fan is arranged at the position of the air outlet; the refrigerant pipeline is arranged in the shell, a first heat exchange part and a second heat exchange part are arranged on the refrigerant pipeline, and the positions of the first heat exchange part and the second heat exchange part correspond to the position of the air outlet; the water circulation system comprises a water tank, a water pump, a water circulation pipeline, a first spraying device and a second spraying device, the first spraying device is communicated with the water tank through the water circulation pipeline, and the second spraying device is communicated with the water tank through the water circulation pipeline. The utility model has the advantages of low energy consumption and high energy efficiency ratio.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning equipment technology, and in particular to an energy-saving air conditioning dual-evaporation condensing outdoor unit. Background Technology

[0002] Currently, existing evaporative outdoor units consist of a heat exchanger, a fan, a water pump, and a spray system. Their working principle is as follows: High-pressure superheated refrigerant gas discharged from the compressor enters the evaporative outdoor unit. Through the circulating cooling water and the spray system, a uniform water film forms on the surface of the heat exchanger. This cooling water film absorbs heat from the refrigerant through the heat exchanger surface. A portion of the cooling water evaporates into water vapor and is discharged into the atmosphere by the fan, while the refrigerant is cooled and condensed into a high-pressure liquid. The unevaporated cooling water undergoes heat and mass exchange through mixing with the ambient air brought in by the fan, lowering its temperature before being sprayed into the water tank to continue participating in the cooling and condensation cycle of the refrigerant.

[0003] During operation, the water sprayed from the spray device passes quickly over the surface of the heat exchanger in the aforementioned evaporative outdoor unit. The heat exchange effect of the heat exchanger is not ideal, and some of the cooling water directly enters the water tank for recycling, resulting in a less than ideal heat exchange effect of the heat exchanger and a relatively low overall energy efficiency of the existing evaporative outdoor unit. Utility Model Content

[0004] This utility model provides an energy-saving air conditioner with dual evaporation and condensation outdoor unit, which has the advantages of low energy consumption and high energy efficiency ratio.

[0005] To solve the above-mentioned technical problems, this utility model provides an energy-saving air conditioner dual-evaporation condensing outdoor unit, characterized in that it includes:

[0006] The housing has an air inlet and an air outlet;

[0007] A wet curtain is installed at the air inlet;

[0008] The fan is located at the air outlet;

[0009] A refrigerant pipeline is installed inside the housing. A first heat exchange section and a second heat exchange section are provided on the refrigerant pipeline. The positions of the first heat exchange section and the second heat exchange section correspond to the position of the air outlet.

[0010] The water circulation system includes a water tank, a water pump, a water circulation pipeline, a first spray device, and a second spray device. The first spray device is connected to the water tank through the water circulation pipeline, and the position of the first spray device corresponds to the positions of the first heat exchange section and the second heat exchange section. The second spray device is connected to the water tank through the water circulation pipeline, and the position of the second spray device corresponds to the position of the wet curtain.

[0011] As a preferred embodiment of the above technical solution, the first spray device is located above the second heat exchange section, the first heat exchange section is located above the first spray device, and the air outlet is located above the first heat exchange section.

[0012] As a preferred embodiment of the above technical solution, the first heat exchange section includes a first inlet main pipe, a first outlet main pipe and a plurality of first heat exchange branch pipes, wherein the two ends of the first heat exchange branch pipes are respectively connected to the first inlet main pipe and the first outlet main pipe.

[0013] As a preferred embodiment of the above technical solution, the first heat exchange branch pipe is provided with a number of finned structures.

[0014] As a preferred embodiment of the above technical solution, the second heat exchange section includes a second inlet main pipe, a second outlet main pipe, and a plurality of second heat exchange branch pipes, wherein the two ends of the second heat exchange branch pipes are respectively connected to the second inlet main pipe and the second outlet main pipe.

[0015] As a preferred embodiment of the above technical solution, the second heat exchange branch pipe is a bare copper pipe.

[0016] As a preferred embodiment of the above technical solution, the first spraying device includes a first spray pipe and a plurality of first spray heads, the first spray pipe being connected to the water tank through the water circulation pipeline, and the first spray heads being connected to the first spray pipe; the second spraying device includes a second spray pipe and a plurality of second spray heads, the second spray pipe being connected to the water tank through the water circulation pipeline, and the second spray heads being connected to the second spray pipe.

[0017] As a preferred embodiment of the above technical solution, the air inlets are provided on all four sides of the housing.

[0018] As a preferred embodiment of the above technical solution, a filter screen is provided at the air inlet.

[0019] As a preferred embodiment of the above technical solution, a temperature sensor is installed in the water tank.

[0020] This utility model provides an energy-saving air conditioner dual-evaporation condensing outdoor unit, including: a shell, refrigerant piping, and a water circulation system. The shell has an air inlet and an air outlet. A wet curtain is installed at the air inlet, and a fan is installed at the air outlet. The refrigerant piping is connected to the refrigerant piping of the indoor unit of the air conditioner. During cooling, water in the water tank, driven by a water pump, enters the first spray device and the second spray device through the water circulation system. The first spray device sprays water onto the second heat exchange section. The sprayed water falls on the surface of the second heat exchanger and forms a water film, exchanging heat with the refrigerant inside the second heat exchange section. Subsequently, the incompletely evaporated sprayed water drips into the water tank. The second spray device sprays water onto the wet curtain. After evaporation and heat absorption, the remaining sprayed water on the wet curtain cools down and eventually drips. Outdoor fresh air, driven by the fan, enters the housing through the air inlet and falls into the water tank. The air first exchanges heat and moisture with the wet curtain, lowering its temperature. The cooled air then flows to the second heat exchange section, where it exchanges heat and moisture with the sprayed water on its surface and the refrigerant inside. After these two heat and moisture exchanges, the air reaches the first heat exchange section and exchanges heat with the refrigerant inside. Finally, it exits the housing through the air outlet. The compressor sends the high-temperature, high-pressure refrigerant gas from the indoor unit into the refrigerant pipeline. The refrigerant gas is pre-cooled once by the air discharged after the two heat and moisture exchanges in the first heat exchange section. After this pre-cooling, the refrigerant enters the second heat exchange section for further cooling, transforming the cooled refrigerant gas into liquid refrigerant, which then flows into the indoor unit. This invention combines air-cooled condensation technology, evaporative condensation technology, and evaporative cooling technology to reduce condensation temperature and pressure, thereby greatly improving the unit's energy efficiency ratio and achieving high-efficiency energy saving. It makes full use of natural cold sources to cool the refrigerant, making it more energy-efficient and efficient than traditional pure air-cooled heat dissipation.

[0021] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of an energy-saving air conditioner with dual evaporation and condensation outdoor unit according to an embodiment of the present utility model;

[0023] Figure 2 This is a three-dimensional structural diagram of an energy-saving air conditioner with dual evaporation and condensation outdoor unit according to an embodiment of the present utility model;

[0024] Figure 3This is a three-dimensional structural diagram of an energy-saving air conditioner with dual evaporation and condensation outdoor unit according to an embodiment of the present utility model;

[0025] In the diagram: 1. Shell; 2. Evaporative cooling pad; 3. Refrigerant piping; 4. First heat exchange section; 5. Second heat exchange section; 6. Water circulation system; 101. Air inlet; 102. Air outlet; 103. Filter screen; 401. First inlet main pipe; 402. First outlet main pipe; 403. First heat exchange branch pipe; 404. Finned structure; 501. Second inlet main pipe; 502. Second outlet main pipe; 503. Second heat exchange branch pipe; 601. Water tank; 602. Water pump; 603. Water circulation piping; 604. First spray device; 605. Second spray device; 606. First spray pipe; 607. First spray head; 608. Second spray pipe; 609. Second spray head. Detailed Implementation

[0026] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] See Figures 1 to 3 This utility model embodiment provides an energy-saving air conditioner dual-evaporation condensing outdoor unit, characterized in that it includes:

[0028] Housing 1, wherein the housing 1 is provided with an air inlet 101 and an air outlet 102;

[0029] Evaporative cooling pad 2 is installed at the air inlet 101;

[0030] A fan (not shown in the figure) is installed at the air outlet 102;

[0031] A refrigerant pipe 3 is disposed inside the housing 1. A first heat exchange section 4 and a second heat exchange section 5 are disposed on the refrigerant pipe 3. The positions of the first heat exchange section 4 and the second heat exchange section 5 correspond to the positions of the air outlet 102.

[0032] The water circulation system 6 includes a water tank 601, a water pump 602, a water circulation pipeline 603, a first spray device 604, and a second spray device 605. The first spray device 604 is connected to the water tank 601 through the water circulation pipeline 603. The position of the first spray device 604 corresponds to the positions of the first heat exchange unit 4 and the second heat exchange unit 5. The second spray device 605 is connected to the water tank 601 through the water circulation pipeline 603. The position of the second spray device 605 corresponds to the position of the wet curtain 2.

[0033] This utility model provides an energy-saving air conditioner dual-evaporation condensing outdoor unit, including: a shell 1, a refrigerant pipeline 3, and a water circulation system 6. The shell 1 has an air inlet 101 and an air outlet 102. A wet curtain 2 is installed at the air inlet 101, and a fan is installed at the air outlet 102. The refrigerant pipeline 3 is connected to the refrigerant pipeline 3 of the indoor unit of the air conditioner. During cooling, water in the water tank 601, driven by the water pump 602, enters the first spray device 604 and the second spray device 605 through the water circulation pipeline 603. The first spray device 604 sprays water onto the second heat exchange section 5. The sprayed water falls on the surface of the second heat exchanger and forms a water film, exchanging heat with the refrigerant inside the second heat exchange section 5. Subsequently, the incompletely evaporated sprayed water drips into the water tank 601. The second spray device 605 sprays water onto the wet curtain 2. The sprayed water on the wet curtain 2 absorbs heat through evaporation. The remaining spray water will decrease in temperature and eventually drip into the water tank 601. Outdoor fresh air, driven by the fan, enters the housing 1 through the air inlet 101. The air first exchanges heat and moisture with the wet curtain 2, and the air temperature is reduced. The cooled air flows to the second heat exchange section 5 driven by the fan, and exchanges heat and moisture with the spray water on the surface of the second heat exchange section 5 and the refrigerant inside the second heat exchange section 5. After two heat and moisture exchanges, the air reaches the first heat exchange section 4 and exchanges heat with the refrigerant inside the first heat exchanger. Finally, it is discharged from the housing 1 through the air outlet 102. The compressor sends the high-temperature and high-pressure refrigerant gas in the indoor unit of the air conditioner into the refrigerant pipeline 3. The refrigerant gas first undergoes pre-cooling with the air discharged after two heat and moisture exchanges in the first heat exchange section 4. After one pre-cooling, the refrigerant enters the second heat exchange section 5 for cooling. The cooled refrigerant gas becomes refrigerant liquid and flows into the indoor unit of the air conditioner. This utility model combines air-cooled condensation technology, evaporative condensation technology, and evaporative cooling technology to reduce condensation temperature and condensation pressure, thereby greatly improving the unit's energy efficiency ratio and achieving high-efficiency energy saving. It makes full use of natural cold sources to cool the refrigerant, and compared with traditional pure air-cooled heat dissipation, this unit is more energy-efficient and efficient.

[0034] In a further embodiment of this invention, the first spray device 604 is located above the second heat exchange section 5, the first heat exchange section 4 is located above the first spray device 604, and the air outlet 102 is located above the first heat exchange section 4.

[0035] In this embodiment, the air outlet 102, the fan, the first heat exchange section 4, the first spray device 604, and the second heat exchange section 5 are arranged sequentially from top to bottom inside the housing 1. High-temperature, high-pressure refrigerant gas first flows into the first heat exchange section 4, where it exchanges heat with the air that has undergone two heat and moisture exchanges for pre-cooling. The pre-cooled refrigerant gas has a lower temperature and pressure, and then enters the second heat exchange section 5 for further cooling and condensation. After sufficient evaporation and cooling, the heat of the refrigerant flowing through the second heat exchange section 5 is effectively transferred to the spray water and the air. Simultaneously, the air temperature after heat and moisture exchange in the second heat exchanger is lower than the outdoor air temperature. This air first passes through the first heat exchange section 4 to pre-cool the higher-temperature refrigerant, and then is discharged outdoors by the fan, fully utilizing natural cold sources to cool the refrigerant, resulting in energy saving and high efficiency. This layout also makes the overall structure of the energy-saving air conditioner's dual-evaporation-condensing outdoor unit more compact, reducing the floor space and improving system integration. Furthermore, it optimizes the airflow path, reducing airflow resistance and making the entire heat exchange process more efficient and smooth.

[0036] In a further embodiment of this invention, the first heat exchange section 4 includes a first inlet main pipe 401, a first outlet main pipe 402, and a plurality of first heat exchange branch pipes 403, wherein the two ends of the first heat exchange branch pipes 403 are respectively connected to the first inlet main pipe 401 and the first outlet main pipe 402.

[0037] In this embodiment, the first heat exchange section 4 includes a first inlet main pipe 401, a first outlet main pipe 402, and a plurality of first heat exchange branch pipes 403. The first heat exchange branch pipes 403 have a serpentine structure. The design of the serpentine heat exchange branch pipes increases the contact area between the refrigerant and the air, thereby improving the heat exchange efficiency.

[0038] In a further embodiment of this invention, the first heat exchange branch pipe 403 is provided with a plurality of finned structures 404.

[0039] In this embodiment, the first heat exchange branch pipe 403 is provided with a plurality of finned structures 404. The fins increase the heat exchange area of ​​the first heat exchange branch pipe 403 and improve the heat exchange efficiency.

[0040] In a further embodiment of this invention, the second heat exchange section 5 includes a second inlet main pipe 501, a second outlet main pipe 502 and a plurality of second heat exchange branch pipes 503, with the two ends of the second heat exchange branch pipes 503 connected to the second inlet main pipe 501 and the second outlet main pipe 502, respectively.

[0041] In this embodiment, the second heat exchange section 5 includes a second inlet main pipe 501, a second outlet main pipe 502, and a plurality of second heat exchange branch pipes 503. The second heat exchange branch pipes 503 have a serpentine structure. The design of the serpentine heat exchange branch pipes increases the contact area between the refrigerant and the air, thereby improving the heat exchange efficiency.

[0042] In a further embodiment of this invention, the second heat exchange branch pipe 503 is a bare copper pipe.

[0043] In this embodiment, the second heat exchange branch pipe 503 is a bare copper pipe. The water film on the surface of the copper pipe is more uniform and free of dry spots, which reduces the possibility of corrosion and scaling, making the heat exchange efficiency more stable and extending the service life of the equipment. Furthermore, the evaporation and condensation technology is adopted, which utilizes the vaporization of water to absorb heat from the refrigerant and improves the condensation efficiency.

[0044] In a further embodiment of this invention, the first spray device 604 includes a first spray pipe 606 and a plurality of first spray heads 607. The first spray pipe 606 is connected to the water tank 601 through the water circulation pipe 603, and the first spray heads 607 are connected to the first spray pipe 606. The second spray device 605 includes a second spray pipe 608 and a plurality of second spray heads 609. The second spray pipe 608 is connected to the water tank 601 through the water circulation pipe 603, and the second spray heads 609 are connected to the second spray pipe 608.

[0045] In this embodiment, the water in the water tank 601 is sprayed onto the second heat exchange section 5 through the first spray head 607, effectively reducing the refrigerant temperature. The water in the water tank 601 is sprayed onto the wet curtain 2 through the second spray head 609, thereby reducing the temperature of the air entering the housing 1 and improving the air heat exchange efficiency. After the spray water from the first spray head 607 undergoes heat exchange in the second heat exchange section 5, its temperature rises. The incompletely evaporated spray water drips into the water tank 601, causing the overall temperature of the water in the water tank 601 to rise. The spray water from the second spray head 609 sprays onto the wet curtain 2, effectively reducing the air temperature and enhancing the cooling effect of the entire system. At the same time, the spray water on the wet curtain 2 also evaporates and absorbs heat. The remaining spray water cools down and finally drips into the water tank 601, effectively neutralizing the water temperature of the spray water dripping onto the second heat exchange section 5, effectively maintaining the water temperature balance of the system and reducing energy consumption.

[0046] In a further embodiment of this invention, the air inlets are provided on all four sides of the housing 1.

[0047] In this embodiment, air inlets are provided on all four sides of the housing 1, thereby increasing the air intake of the housing 1, optimizing airflow performance, and further improving heat exchange efficiency.

[0048] In a further embodiment of this invention, a filter screen 103 is provided at the air inlet 101.

[0049] In this embodiment, a filter screen 103 is provided at the air inlet 101. The filter screen 103 can effectively block dust and other debris from entering the interior of the housing 1, ensuring the cleanliness of the system interior, reducing maintenance frequency, and also helping to maintain smooth airflow and ensure stable heat exchange efficiency.

[0050] In a further embodiment of this invention, a temperature sensor (not shown in the figure) is provided in the water tank 601.

[0051] In this embodiment, when the water temperature in the water tank 601 is too high, it will seriously affect the cooling efficiency. The water tank 601 is equipped with a temperature sensor, which monitors the water temperature in the water tank 601 in real time. When the water temperature in the water tank 601 is too high, it will remind the operator to make timely adjustments to keep the system in the best working condition.

[0052] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. Furthermore, the described specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0054] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An energy-saving air conditioner with dual evaporation and condensation outdoor unit, characterized in that, include: The housing has an air inlet and an air outlet; A wet curtain is installed at the air inlet; The fan is located at the air outlet; A refrigerant pipeline is installed inside the housing. A first heat exchange section and a second heat exchange section are provided on the refrigerant pipeline. The positions of the first heat exchange section and the second heat exchange section correspond to the position of the air outlet. The water circulation system includes a water tank, a water pump, a water circulation pipeline, a first spray device, and a second spray device. The first spray device is connected to the water tank through the water circulation pipeline, and the position of the first spray device corresponds to the positions of the first heat exchange section and the second heat exchange section. The second spray device is connected to the water tank through the water circulation pipeline, and the position of the second spray device corresponds to the position of the wet curtain.

2. The energy-saving air conditioner dual-evaporation condensing outdoor unit according to claim 1, characterized in that, The first spray device is located above the second heat exchange section, the first heat exchange section is located above the first spray device, and the air outlet is located above the first heat exchange section.

3. The energy-saving air conditioner dual-evaporation condensing outdoor unit according to claim 1, characterized in that, The first heat exchange section includes a first inlet main pipe, a first outlet main pipe, and a plurality of first heat exchange branch pipes, the two ends of which are connected to the first inlet main pipe and the first outlet main pipe, respectively.

4. The energy-saving air conditioner dual-evaporation condensing outdoor unit according to claim 3, characterized in that, The first heat exchange branch pipe is provided with several finned structures.

5. The energy-saving air conditioner dual-evaporation condensing outdoor unit according to claim 1, characterized in that, The second heat exchange section includes a second inlet main pipe, a second outlet main pipe, and a plurality of second heat exchange branch pipes, the two ends of which are connected to the second inlet main pipe and the second outlet main pipe, respectively.

6. The energy-saving air conditioner dual-evaporation condensing outdoor unit according to claim 5, characterized in that, The second heat exchange branch pipe is a bare copper pipe.

7. The energy-saving air conditioner dual-evaporation condensing outdoor unit according to claim 1, characterized in that, The first spraying device includes a first spray pipe and a plurality of first spray heads. The first spray pipe is connected to the water tank through the water circulation pipe, and the first spray heads are connected to the first spray pipe. The second spraying device includes a second spray pipe and a plurality of second spray heads. The second spray pipe is connected to the water tank through the water circulation pipe, and the second spray heads are connected to the second spray pipe.

8. The energy-saving air conditioner dual-evaporation condensing outdoor unit according to claim 1, characterized in that, The air inlets are provided on all four sides of the housing.

9. The energy-saving air conditioner dual-evaporation condensing outdoor unit according to claim 8, characterized in that, A filter screen is installed at the air inlet.

10. The energy-saving air conditioner dual-evaporation condensing outdoor unit according to claim 1, characterized in that, A temperature sensor is installed in the water tank.

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