Energy-saving cooling system for machine room and base station

Abstract

The utility model provides an energy-saving cooling system for a machine room and a base station. The energy-saving cooling system comprises an air conditioner arranged in a base station wall body of the machine room or the base station, an internal heat absorption machine arranged in the base station wall body, an external heat dissipation machine arranged outside the base station wall body, and a controller arranged at the top of the internal heat absorption machine, wherein the internal heat absorption machine and the external heat dissipation machine are connected through two cooling circulation pipes penetrating through the wall of the base station, at least one circulation pump is installed on a pipeline of one cooling circulation pipe, and cooling liquid is contained in the cooling circulation pipes; the two cooling circulation pipes are connected in an 8 shape, the cooling circulation pipe led out of the upper half portion of the internal heat absorption machine is connected to the lower half portion of the external heat dissipation machine, and the cooling circulation pipe led out of the lower half portion of the internal heat absorption machine is connected to the upper half portion of the external heat dissipation machine. The energy-saving cooling system is mainly used for base stations and machine rooms which need long-term operation and temperature control.

Description

Technical Field

[0001] This utility model relates to an energy-saving cooling system, and more particularly to an energy-saving cooling system for computer rooms and base stations. Background Technology

[0002] In some independent, small-area base stations, in order to maintain the normal operation of the internal information technology equipment, it is necessary to continuously maintain the temperature and humidity within the base station within a suitable range.

[0003] To achieve the above objectives, one of the following is typically used inside the base station: a heat exchanger, a water curtain air cooler, a heat pipe heat exchange air conditioner, or a refrigerant pump air conditioner.

[0004] Heat exchanger: The principle is relatively simple. It uses a fan motor to exchange heat between indoor and outdoor air through aluminum foil insulation. It uses the outdoor ambient temperature to cool the indoor temperature, thereby achieving the purpose of energy saving and cooling. The disadvantages of this solution are: it requires opening holes in the base station wall, which damages the original wall. To achieve a better cooling effect, the usable area needs to be increased, and the power of the fan motor also needs to be increased accordingly.

[0005] Evaporative cooling pads: These systems use a circulating water pump to spray water onto the evaporative cooling pads, then a fan draws outdoor air through the pads, bringing some of the moisture into the room. The air is then exhausted outdoors by an exhaust fan, achieving energy-saving cooling. The disadvantages of this system are: it requires a continuous water supply; although it filters outdoor air, fine dust particles can still enter the room, making it relatively dirty; and the evaporative cooling pads are prone to scaling and dust accumulation, resulting in a short lifespan.

[0006] Heat pipe heat exchange air conditioner: The principle is relatively simple. It uses the process of refrigerant vaporization and liquefaction to utilize gravity for natural circulation. The outdoor unit must be installed higher than the indoor unit, which has installation limitations. Theoretically, although its power consumption is low, its heat exchange efficiency is relatively low.

[0007] Fluorine pump air conditioner: This type of air conditioner is based on a dedicated air conditioner for computer rooms, with an additional refrigerant circulation pump installed in the outdoor unit. Commonly known as a 'fluorine pump', it turns on when the outdoor temperature is low to allow the refrigerant to circulate and carry away heat. The disadvantages of this solution are: First, currently, 'fluorine pumps' are used in dedicated air conditioners for computer rooms with high power consumption. The minimum power of a fluorine pump is 1.1KW, which is relatively high, resulting in high electricity costs. This makes it unsuitable for installation and application in small computer rooms and base stations. Second, fluorine pump air conditioners are relatively expensive. Summary of the Invention

[0008] To address the problems existing in the prior art, this utility model proposes an energy-saving cooling system for computer rooms and base stations.

[0009] The energy-saving cooling system includes: an air conditioner installed inside the base station wall in the computer room or base station, an internal heat absorber installed inside the base station wall, an external heat dissipation unit installed outside the base station wall, and a controller installed on top of the internal heat absorber.

[0010] The internal heat absorber and the external heat dissipation unit are connected by two cooling circulation pipes that pass through the base station wall. At least one circulation pump is installed on one of the cooling circulation pipes, and the cooling circulation pipe is filled with coolant.

[0011] This energy-saving cooling system mainly utilizes the cool and suitable climate of Northwest China. The coolant circulates between the internal heat absorber and the external heat radiator in the cooling circulation pipe. When it flows to the external heat radiator, the coolant releases heat under the influence of the ambient temperature, and its own temperature decreases, thus completing the "heat release". When the coolant flows to the internal heat absorber, it absorbs heat from the base station and its own temperature increases, thus completing the "heat absorption", thereby achieving the effect of cooling the base station.

[0012] The two cooling circulation pipes are connected in a figure-eight configuration. The cooling circulation pipe leading from the upper part of the internal heat absorber is connected to the lower part of the external heat radiator, and the cooling circulation pipe leading from the lower part of the internal heat absorber is connected to the upper part of the external heat radiator.

[0013] The cooling circulation pipes are connected in a figure-eight configuration, which can achieve better heat exchange effect.

[0014] Furthermore, in order to enhance the "heat absorption" and "heat release" effect of the coolant in the cooling circulation pipe, both the internal heat absorber and the external heat radiator are equipped with finned radiators. Two cooling circulation pipes are respectively connected to the outlet and inlet of the radiator, and the radiator is equipped with an external casing.

[0015] Furthermore, a filter screen is installed on the surface of the outer casing facing the base station wall, and several evenly distributed ventilation holes are provided on the surface of the outer casing facing away from the base station wall; a fan is installed between the ventilation holes and the radiator. The fan drives air to enter through the filter screen and pass through the radiator. The filter screen can filter particulate matter in the air, extend the normal service life of the radiator, and reduce the cleaning frequency.

[0016] Furthermore, the radiator includes: tubular radiators and ribbon radiators. The tubular radiator is located near the filter installation end, while the ribbon radiator is located near the fan filter installation end. Both the tubular and ribbon radiators are provided with several parallel heat dissipation fins, which are mainly used to increase the heat dissipation area.

[0017] Furthermore, the tubular radiator contains cylindrical tubes, while the ribbon radiator contains flat tubes. Both tubes are used for coolant circulation. The ribbon radiator has transition sleeves at both ends that connect to the inner cavity of the flat tubes. These transition sleeves have transition pipes that connect to the cylindrical tubes of the tubular radiator. The tubular radiator has a larger contact area with the air flowing through it, resulting in better heat dissipation. However, the cylindrical tubes can obstruct airflow, making it difficult to clean dirt from the fins. The ribbon radiator has a smaller contact area with the air flowing through it, resulting in less efficient heat dissipation, but it does not obstruct airflow and allows for thorough cleaning of the internal structure, making it easier to maintain. Therefore, a radiator combining tubular and ribbon radiators ensures effective heat dissipation while facilitating cleaning of the internal fins.

[0018] Furthermore, the transition connecting sleeve is provided with a transition cavity, one end of which is connected to the flat tube, and the other end of which is connected to the transition connecting pipe.

[0019] Furthermore, the two cooling circulation pipes connected to the internal heat absorber are respectively equipped with temperature sensor 1 and temperature sensor 2 for measuring the inlet and outlet liquid temperatures. The top of the internal heat absorber is equipped with temperature sensor 3 for measuring the internal ambient temperature of the equipment room or base station. The top of the external heat dissipation unit is equipped with temperature sensor 4 for measuring the external ambient temperature of the equipment room or base station.

[0020] Furthermore, in order to monitor the working effect of the circulating pump, a flow meter is installed on another cooling circulation pipe connecting the internal heat absorber and the external heat radiator.

[0021] Furthermore, the controller is connected to the fans on the air conditioner, circulating pump, internal heat absorber, and external heat dissipation unit to control the temperature inside the equipment room or base station. The controller is also connected to temperature sensor 1, temperature sensor 2, temperature sensor 3, temperature sensor 4, and flow meter to receive temperature and flow signals.

[0022] The technical advantages of this invention are as follows: According to statistics, the temperature difference between day and night is large in western regions, and the actual nighttime outdoor temperature is higher than 20℃ for less than 20 days. This invention is a system that mainly utilizes the natural environment for energy-saving cooling, especially using the cool outdoor air in western regions as the main cold source. The system uses the coolant circulating between the internal heat absorber inside the base station wall and the external heat dissipation unit outside the base station wall as the main cooling and temperature control medium, with air conditioning as a supplementary cold source to control the temperature inside the base station. This can significantly reduce the energy consumption for cooling the base station.

[0023] Antifreeze can be added to the coolant to prevent the cooling circulation pipes from freezing and cracking in winter. Furthermore, the heat exchange effect of this solution depends on various factors such as coolant flow rate, radiator heat exchange area, and fan speed. Multiple temperature sensors are installed to detect the coolant's inlet and outlet temperatures, as well as the internal and external ambient temperatures. Based on this, a controller manages the auxiliary cooling air conditioning equipment, ensuring that the base station's internal temperature remains suitable for the stable operation of information technology equipment regardless of hot summers or cold winters. Experimental testing shows that, compared to existing technologies, the air conditioner, as an auxiliary cooling source, only operates when the outdoor temperature is above 20°C, thus reducing its operating time and significantly lowering power consumption. When the outdoor temperature is below 20°C, only an internal heat absorber and an external heat radiator are needed to meet the requirement that the base station's internal temperature generally does not exceed 28°C. Variable frequency drives can be used for the circulation pump and fans, which have lower power consumption compared to the compressor in the air conditioner, further reducing the economic operating cost of the equipment.

[0024] Meanwhile, the internal heat absorber and the external heat dissipation unit of this utility model only exchange heat through coolant, and the cooling process involves air exchange with the outside world, preventing dust and particulate matter from entering the base station. Attached Figure Description

[0025] Figure 1 This is a perspective view of the cooling system in this utility model;

[0026] Figure 2 This is a perspective view of the cooling system in this utility model;

[0027] Figure 3 This is a perspective view of the radiator in this utility model;

[0028] Figure 4 This is a schematic diagram showing the connection between the controller and each control unit in this utility model.

[0029] In the diagram, 1. Base station wall, 2. Air conditioner, 3. Internal heat absorber, 4. External heat sink, 5. Cooling circulation pipe, 6. Flow meter, 7. Circulation pump, 9. Controller, 10. Temperature sensor one, 11. Temperature sensor two, 12. Temperature sensor three, 13. Temperature sensor four, 30. Exterior enclosure, 31. Fan, 32. Radiator, 33. Filter, 301. Ventilation hole, 321. Tubular radiator, 322. Strip radiator, 323. Transition connecting sleeve, 324. Transition connecting pipe, 325. Heat dissipation fins, 3231. Transition cavity. Detailed Implementation

[0030] The following is combined Figures 1 to 4 The specific embodiments of this utility model will be described.

[0031] Figure 1 and Figure 2 The diagram illustrates the overall structure of the cooling system and the connection relationships between its main components, including the relative alignment of the fan 31, radiator 32, and filter 33 within the outer casing 30. This energy-saving cooling system includes: an air conditioner 2 installed inside the base station wall 1 in the equipment room or base station; an internal heat absorber 3 installed inside the base station wall 1; an external heat radiator 4 installed outside the base station wall 1; and a controller 9 located on top of the internal heat absorber 3. The internal heat absorber 3 and the external heat radiator 4 are connected by two cooling circulation pipes 5 passing through the base station wall 1. At least one circulation pump 7 is installed on one of the cooling circulation pipes 5, and the cooling circulation pipe 5 contains coolant.

[0032] The two cooling circulation pipes 5 are connected in a figure-eight configuration. The cooling circulation pipe 5, which is drawn from the upper part of the internal heat absorber 3, is connected to the lower part of the external heat radiator 4, and the cooling circulation pipe 5, which is drawn from the lower part of the internal heat absorber 3, is connected to the upper part of the external heat radiator 4.

[0033] Both the internal heat absorber 3 and the external heat radiator 4 are equipped with finned heat sinks 32. Two cooling circulation pipes 5 are respectively connected to the liquid outlet and liquid inlet of the heat sink 32. The heat sink 32 is equipped with an outer casing 30. The surface of the outer casing 30 facing the base station wall 1 is equipped with a filter screen 33. The surface of the outer casing 30 facing away from the base station wall 1 is provided with several evenly distributed ventilation holes 301. A fan 31 is provided between the ventilation holes 301 and the heat sink 32.

[0034] The internal heat absorber 3 is equipped with two cooling circulation pipes 5 connected to it, which are respectively equipped with temperature sensors 10 and 11 for measuring the inlet and outlet liquid temperatures. The top of the internal heat absorber 3 is equipped with a temperature sensor 12 for measuring the internal ambient temperature of the equipment room or base station. The top of the external heat dissipation unit 4 is equipped with a temperature sensor 13 for measuring the external ambient temperature of the equipment room or base station. The other cooling circulation pipe 5 connecting the internal heat absorber 3 and the external heat dissipation unit 4 is equipped with a flow meter 6.

[0035] Figure 3 The internal structure of the radiator is illustrated. The radiator 32 includes a tubular radiator 321 and a ribbon radiator 322. The tubular radiator 321 is located near the mounting end of the filter screen 33, and the ribbon radiator 322 is located near the mounting end of the fan 31. Both the tubular radiator 321 and the ribbon radiator 322 are provided with several parallel heat dissipation fins 325.

[0036] The tubular radiator 321 has a cylindrical tube inside, while the ribbon radiator 322 has a flat tube inside. Both the cylindrical tube and the flat tube are used for coolant circulation. The ribbon radiator 322 has transition connecting sleeves 323 at both ends that communicate with the inner cavity of the flat tube. The transition connecting sleeves 323 have transition connecting pipes 324 that communicate with the cylindrical tube of the tubular radiator 321.

[0037] The transition connecting sleeve 323 is provided with a transition cavity 3231. One end of the transition cavity 3231 is connected to the flat tube, and the other end of the transition cavity 3231 is connected to the transition connecting pipe 324.

[0038] Figure 4 The diagram illustrates the connection to the controller. The controller 9 is connected to the air conditioner 2, the circulating pump 7, the internal heat absorber 3, and the fan 31 on the external heat dissipator 4, respectively, to control the temperature inside the equipment room or base station. The controller 9 is also connected to temperature sensor 10, temperature sensor 21, temperature sensor 32, temperature sensor 43, and flow meter 6 to receive temperature and flow signals.

[0039] Working principle: The temperature inside the base station is generally required to be no more than 28℃. When the outdoor temperature is below 20℃, the circulation pump 7 and fan 31 are turned on first. For the external heat sink 4, the fan 31 rotates to drive the outdoor air from the filter screen 33 into the outer casing 30, and flows through the heat sink 32. The heat sink fins 325 on the heat sink 32 release heat into the air. The air carries the heat and is discharged from the ventilation hole 301, which is the "heat release" process.

[0040] Driven by the circulating pump 7, the low-temperature coolant, after releasing heat, passes through the tubular radiator 321 and the ribbon radiator 322 in sequence. After the coolant temperature is reduced, it enters the internal heat absorber 3 along the cooling circulation pipe 5.

[0041] The fan 31 of the internal heat absorber 3 rotates, driving the air inside the base station to flow through the radiator 32. The heat dissipation fins 325 on the radiator 32 absorb the heat in the air, which is the "heat absorption" process. The air inside the base station circulates and cools down. The temperature sensor 312 on the internal heat absorber (3) monitors the temperature inside the base station. When the temperature is lower than the control requirements, the controller 9 can adjust the flow rate of the coolant or the "heat release" and "heat absorption" effect by changing the frequency or start / stop of the circulating pump 7 or the fan 31, so as to ensure that the temperature inside the base station is controllable.

[0042] When temperature sensor 413 detects that the outdoor temperature outside the base station is between 20°C and 28°C, controller 9 starts air conditioner 2 as an auxiliary cooling device. The internal heat absorber 3 and the circulation pump 7 and fan 31 on the external heat dissipation unit 4 continue to work together with air conditioner 2 to meet the temperature control requirements of the base station.

[0043] When temperature sensor 413 detects that the outdoor temperature outside the base station is higher than 28°C, controller 9 starts air conditioner 2 as the main cooling device. The internal heat absorber 3 and the external heat dissipation unit 4's circulation pump 7 and fan 31 stop working, and air conditioner 2 alone meets the temperature control requirements of the base station.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An energy-saving cooling system for computer rooms and base stations, characterized in that, The energy-saving cooling system includes: an air conditioner (2) installed inside the base station wall (1) in the computer room or base station, an internal heat absorber (3) installed inside the base station wall (1), an external heat dissipation unit (4) installed outside the base station wall (1), and a controller (9) installed on the top of the internal heat absorber (3). The internal heat absorber (3) and the external heat dissipation unit (4) are connected by two cooling circulation pipes (5) that pass through the base station wall (1). At least one circulation pump (7) is installed on the pipe of one of the cooling circulation pipes (5), and the cooling circulation pipe (5) is filled with coolant. Two cooling circulation pipes (5) are connected in a figure-eight configuration. The cooling circulation pipe (5) leading out from the upper part of the internal heat absorber (3) is connected to the lower part of the external heat radiator (4), and the cooling circulation pipe (5) leading out from the lower part of the internal heat absorber (3) is connected to the upper part of the external heat radiator (4).

2. The energy-saving cooling system for computer rooms and base stations according to claim 1, characterized in that, Both the internal heat absorber (3) and the external heat radiator (4) are equipped with finned radiators (32), and two cooling circulation pipes (5) are connected to the liquid outlet and liquid inlet of the radiator (32) respectively. The radiator (32) is equipped with an outer casing (30).

3. The energy-saving cooling system for computer rooms and base stations according to claim 2, characterized in that, The outer casing (30) has a filter screen (33) installed on the side of the outer casing (30) facing the base station wall (1), and a number of evenly distributed ventilation holes (301) are provided on the side of the outer casing (30) facing away from the base station wall (1). A fan (31) is provided between the ventilation hole (301) and the heat sink (32).

4. The energy-saving cooling system for computer rooms and base stations according to claim 3, characterized in that, The radiator (32) includes a tubular radiator (321) and a ribbon radiator (322). The tubular radiator (321) is located near the installation end of the filter screen (33), and the ribbon radiator (322) is located near the installation end of the fan (31). Both the tubular radiator (321) and the ribbon radiator (322) are provided with a number of parallel heat dissipation fins (325).

5. The energy-saving cooling system for computer rooms and base stations according to claim 4, characterized in that, The tubular radiator (321) has a cylindrical tube inside, and the strip radiator (322) has a flat tube inside. Both the cylindrical tube and the flat tube are used for coolant circulation. The two ends of the strip radiator (322) are provided with transition connecting sleeves (323) that communicate with the inner cavity of the flat tube. The transition connecting sleeves (323) are provided with transition connecting pipes (324) that communicate with the cylindrical tube of the tubular radiator (321).

6. The energy-saving cooling system for computer rooms and base stations according to claim 5, characterized in that, The transition connecting sleeve (323) is provided with a transition cavity (3231), one end of the transition cavity (3231) is connected to the flat tube, and the other end of the transition cavity (3231) is connected to the transition connecting pipe (324).

7. The energy-saving cooling system for computer rooms and base stations according to claim 3, characterized in that, The internal heat absorber (3) is equipped with two cooling circulation pipes (5) connected to it, which are respectively equipped with temperature sensor 1 (10) and temperature sensor 2 (11) for measuring the inlet and outlet liquid temperatures. The top of the internal heat absorber (3) is equipped with temperature sensor 3 (12) for measuring the internal ambient temperature of the computer room or base station. The top of the external heat sink (4) is equipped with temperature sensor 4 (13) for measuring the external ambient temperature of the computer room or base station.

8. The energy-saving cooling system for computer rooms and base stations according to claim 7, characterized in that, A flow meter (6) is installed on another cooling circulation pipe (5) connecting the internal heat absorber (3) and the external heat radiator (4).

9. The energy-saving cooling system for computer rooms and base stations according to claim 8, characterized in that, The controller (9) is connected to the fan (31) on the air conditioner (2), the circulating pump (7), the internal heat absorber (3) and the external heat sink (4) respectively, and is used to control the temperature inside the computer room or base station. The controller (9) is connected to temperature sensor one (10), temperature sensor two (11), temperature sensor three (12), temperature sensor four (13) and flow meter (6) to receive temperature and flow signals.

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