Heat pipe stepped base station air conditioning unit

Abstract

The utility model discloses a heat pipe stepped base station air conditioning unit, the unit includes first stage condenser, second stage condenser, third stage condenser, compressor, expansion valve, solenoid valve, evaporator, wherein, first stage condenser, second stage condenser, third stage condenser are connected in proper order, first stage condenser links to each other with evaporator, third stage condenser links to each other with compressor through a branch, and compressor links to each other with expansion valve through pipeline, and expansion valve links to each other with evaporator, and third stage condenser links to each other with solenoid valve through another branch, then links to each other with evaporator through pipeline, first stage condenser, second stage condenser, third stage condenser and evaporator can work in heat pipe or mechanical refrigeration mode.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning, and in particular to an air conditioning unit for a base station. Background Technology

[0002] Currently, in some small data centers and some older communication base stations, the base station equipment generates a lot of heat during operation. Air conditioning needs to control the ambient temperature within the range required by the equipment (usually 10℃~35℃) to avoid high temperatures causing equipment performance degradation or malfunction. For example, the long-term operating temperature range of wireless equipment is -5℃~45℃, while batteries need to be maintained at 15℃~30℃ to extend their lifespan. Currently, the cooling methods commonly used for base station cooling include precision air conditioners such as air-cooled direct expansion type, water-cooled type, air-cooled chilled water type, and water-cooled chilled water type. These methods have high operating costs and, as the equipment ages, are prone to performance degradation or malfunction in high-temperature weather.

[0003] Therefore, there is an urgent need for an air conditioning system that is highly efficient, low-cost, and can maintain high efficiency for a long time. Utility Model Content

[0004] To address the various problems existing in traditional solutions, this utility model provides a heat pipe stepped base station air conditioning unit, which includes a first-stage condenser, a second-stage condenser, a third-stage condenser, a compressor, an expansion valve, a solenoid valve, and an evaporator.

[0005] The first-stage condenser, second-stage condenser, and third-stage condenser are connected in series. The first-stage condenser is connected to the evaporator. The third-stage condenser is connected to the compressor via a branch. The compressor is connected to the expansion valve via a pipeline. The expansion valve is connected to the evaporator. The third-stage condenser is connected to the solenoid valve via another branch, and then connected to the evaporator via a pipeline. The first-stage condenser, second-stage condenser, third-stage condenser, and evaporator can all operate in heat pipe or mechanical refrigeration mode.

[0006] Furthermore, the compressor is a variable frequency compressor.

[0007] Furthermore, the first-stage condenser, second-stage condenser, third-stage condenser, and evaporator all contain a working fluid capable of phase change.

[0008] Furthermore, the unit also includes a monitoring and management subsystem, which monitors indoor and outdoor ambient temperature and humidity parameters in real time and automatically selects a matching working mode based on set conditions.

[0009] The unit provided by this utility model is highly efficient, low-cost, and can maintain high efficiency for extended periods, offering economic, environmental, and social benefits. This unit improves the energy efficiency of data centers and older base stations, enhancing the operational stability of computer rooms. By converting previously waste heat energy into valuable energy resources, it opens up new revenue streams for data center operators, such as generating additional income by supplying hot water and heating services to surrounding communities or buildings. Effective waste heat recovery reduces the carbon footprint of data centers, contributing to national and global emission reduction targets. Reduced energy consumption means less fossil fuel combustion, thereby reducing greenhouse gas and other pollutant emissions, playing a positive role in mitigating global climate change. Promoting this system helps raise public awareness and support for green data centers and enhances corporate social responsibility. Simultaneously, energy sharing with surrounding communities enhances community energy security and resilience, promotes regional energy self-sufficiency, and fosters a healthy social and ecological cycle. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the specific embodiments of this utility model, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below.

[0011] Figure 1 This is a schematic diagram of the unit structure of Embodiment 1 disclosed in this utility model. Detailed Implementation

[0012] The structure and operation of this utility model patent will be further described in detail below with reference to the accompanying drawings. Obviously, the drawings are provided only for better understanding of this utility model patent and should not be construed as limiting this utility model patent. Based on the embodiments of this utility model patent, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0013] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0015] Example 1

[0016] Combination Figure 1 As shown, this embodiment discloses a heat pipe stepped base station air conditioning unit, the unit including a first-stage condenser 1, a second-stage condenser 2, a third-stage condenser 3, a compressor 4, an expansion valve 5, a solenoid valve 6, and an evaporator 7;

[0017] The first-stage condenser 1, the second-stage condenser 2, and the third-stage condenser 3 are connected in series. The first-stage condenser 1 is connected to the evaporator 7. The third-stage condenser 3 is connected to the compressor 4 through a branch. The compressor 4 is connected to the expansion valve 5 through a pipeline. The expansion valve 5 is connected to the evaporator 7. The third-stage condenser 3 is connected to the solenoid valve 6 through another branch, and then connected to the evaporator 7 through a pipeline. The first-stage condenser 1, the second-stage condenser 2, the third-stage condenser 3, and the evaporator 7 can all operate in heat pipe or mechanical refrigeration mode.

[0018] Furthermore, the compressor is a variable frequency compressor.

[0019] Furthermore, the first-stage condenser 1, the second-stage condenser 2, the third-stage condenser 3, and the evaporator 7 all contain a working fluid capable of phase change.

[0020] Furthermore, the unit also includes a monitoring and management subsystem, which monitors indoor and outdoor ambient temperature and humidity parameters in real time and automatically selects a matching working mode based on set conditions.

[0021] Specifically, the unit in this embodiment includes the following key components:

[0022] (1) Heat pipe system: The heat pipe system consists of evaporator 7, first-stage condenser 1, second-stage condenser 2, and third-stage condenser 3. The evaporator and each stage of condenser are equipped with a working fluid that can undergo phase change. This heat pipe system uses the phase change of the working fluid to transfer heat. In evaporator 7, the working fluid absorbs heat and evaporates into steam. The steam flows to the condenser under the action of pressure difference. After releasing heat in the condenser, it condenses into liquid. The liquid then flows back to the evaporator under the action of capillary force or gravity. This cycle repeats, achieving efficient heat transfer.

[0023] (2) Stepped heat exchange system: The first-stage condenser 1, the second-stage condenser 2, and the third-stage condenser 3 are connected in series according to the temperature gradient to form a multi-stage heat transfer link and a stepped heat exchange process. The high-temperature heat source first releases part of the heat through the first-stage condenser 1, and then enters the next stage to exchange heat with the medium at a lower temperature for a second time, ultimately achieving the purpose of improving energy efficiency, reducing maintenance costs, and enhancing reliability.

[0024] (3) Variable frequency air conditioning system: The evaporator 7, compressor 4, and first-stage condenser 1, second-stage condenser 2, and third-stage condenser 3 together constitute the variable frequency air conditioning system. When the indoor load is large and the heat pipe system alone cannot meet the cooling requirements, the unit switches to mechanical refrigeration mode. At this time, the solenoid valve 6 closes, the refrigeration branch opens, the compressor 4 works, and the refrigerant absorbs heat and evaporates in the evaporator 4, and condenses and releases heat in the condenser. The refrigerant flow is controlled by the expansion valve 5 to realize the refrigeration cycle and exhaust the indoor heat to the outside.

[0025] (4) Monitoring and Management System: Intelligent control is adopted to monitor indoor and outdoor environmental parameters such as temperature and humidity in real time. The system automatically selects the best working mode according to the set conditions, so as to achieve energy-saving operation and facilitate the management and maintenance of the base station.

[0026] The unit operates on the following principle:

[0027] Heat pipe mode: When the outdoor temperature is low enough and the temperature difference between indoors and outdoors reaches a certain level, the unit activates heat pipe mode. At this time, the refrigerant absorbs heat and evaporates in evaporator 7. The gaseous refrigerant rises to the condenser, where it sequentially condenses into a liquid state in the first-stage condenser 1, the second-stage condenser 2, and the third-stage condenser 3. The liquid refrigerant then flows back to evaporator 7 under gravity, forming a natural circulation that transfers heat from indoors to outdoors. This eliminates the need for a compressor, reducing energy consumption.

[0028] Mechanical refrigeration mode: When the indoor load is high and the heat pipe mode cannot meet the cooling requirements, the unit switches to refrigeration mode. At this time, the refrigeration branch is opened, the solenoid valve 6 is closed, the compressor 4 works, and the refrigerant absorbs heat and evaporates in the evaporator 7, and condenses and releases heat in the condenser. The refrigerant flow is controlled by the expansion valve 5 to realize the refrigeration cycle and exhaust the indoor heat to the outside.

[0029] Dual-start mode: Some units also have a dual-start mode. When the indoor and outdoor temperatures and load conditions are within a certain range, the heat pipe mode and the cooling mode operate simultaneously. Utilizing heat pipe technology and a stepped heat exchanger system, the outdoor ambient temperature is first used to lower the hot air in the machine room to a certain temperature, and then the compressor 4 is used for cooling. This allows the compressor 4 to operate in a safe operating condition to achieve better cooling effect and energy saving.

[0030] This utility model has the following technical effects:

[0031] Integrated structure: The heat pipe air conditioner unit adopts an integrated indoor design, without an outdoor unit or indoor-outdoor connecting copper pipes, which is convenient to install, requires little modification to the original base station structure, and occupies a small area.

[0032] Dual-loop system: The mechanical refrigeration / heat pipe integrated air conditioner has two loops, namely the mechanical refrigeration loop and the heat pipe loop, which allows the unit to use the heat pipe for natural cooling and also to perform mechanical refrigeration when necessary.

[0033] Shared refrigeration system: Mechanical refrigeration and natural cooling share a single refrigeration system, which greatly reduces internal structural components, optimizes external design dimensions, lowers costs, and also improves system reliability.

[0034] The above embodiments are only used to illustrate this utility model patent. The structure, connection method and manufacturing process of each component can be changed. All equivalent transformations and improvements made on the basis of this technical solution should not be excluded from the protection scope of this utility model patent.

Claims

1. A heat pipe stepped base station air conditioning unit, characterized by: The unit includes a first-stage condenser, a second-stage condenser, a third-stage condenser, a compressor, an expansion valve, a solenoid valve, and an evaporator; The first-stage condenser, second-stage condenser, and third-stage condenser are connected in series. The first-stage condenser is connected to the evaporator. The third-stage condenser is connected to the compressor via a branch. The compressor is connected to the expansion valve via a pipeline. The expansion valve is connected to the evaporator. The third-stage condenser is connected to the solenoid valve via another branch, and then connected to the evaporator via a pipeline. The first-stage condenser, second-stage condenser, third-stage condenser, and evaporator can all operate in heat pipe or mechanical refrigeration mode.

2. The machine group according to claim 1, characterized in that: The compressor is a variable frequency compressor.

3. The crew of claim 1, wherein: The first-stage condenser, second-stage condenser, third-stage condenser, and evaporator all contain a working fluid capable of phase change.

4. The crew of claim 1, wherein: The unit also includes a monitoring and management subsystem, which monitors indoor and outdoor ambient temperature and humidity parameters in real time and automatically selects a matching working mode based on set conditions.

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