Energy-saving cooling system for machine room and base station

Abstract

The invention 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 of the machine room or the base station, an internal heat absorption machine installed in the base station wall, an external heat dissipation machine installed outside the base station wall 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] The present invention relates to an energy-saving cooling system, and particularly to an energy-saving cooling system for computer rooms and base stations. Background Art

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

[0003] To achieve the above purpose, usually one of a heat exchange machine, a water curtain air cooler, a heat pipe heat exchange air conditioner, and a fluorine pump air conditioner is used inside the base station.

[0004] Heat exchange machine: The principle is relatively simple. It uses a fan motor to exchange heat between indoor and outdoor air separated by aluminum foil. It uses the outdoor ambient temperature to cool the indoor air, so as to achieve the purpose of energy saving and cooling. The disadvantages of this solution are: it is necessary to drill holes in the base station wall, which will damage the original wall. To achieve better cooling effect, it is necessary to increase the usage area, and at the same time, the power of the fan motor will also increase.

[0005] Water curtain air cooler: It uses a circulating water pump to spray water onto the wet curtain paper, and then uses a fan to pass outdoor air through the wet curtain paper, bringing some moisture into the room, and then exhausting it outdoors through an exhaust fan, so as to achieve the effect of energy saving and cooling. The disadvantages of this solution are: it must have a long-term water source supply. Although it filters outdoor air, tiny dust particles will still enter the room, resulting in a dirty indoor environment; the wet curtain paper is prone to scaling and dust accumulation, and has a short service life.

[0006] Heat pipe heat exchange air conditioner: The principle is also relatively simple. It uses the process of gasification and liquefaction of the refrigerant to naturally circulate by gravity. The outdoor unit must be installed higher than the indoor unit, and the installation has limitations. Although its power consumption is relatively low in theory, its heat exchange efficiency is relatively low.

[0007] Fluorine pump air conditioner: On the basis of a dedicated computer room air conditioner, a refrigerant circulation pump, commonly known as a 'fluorine pump', is installed on the outdoor unit. When the outdoor temperature is relatively low, the 'fluorine pump' is turned on to make the refrigerant circulate to take out heat. The disadvantages of this solution are: First, at present, the 'fluorine pump' is applied to dedicated computer room air conditioners with large power consumption. The minimum power of the fluorine pump is 1.1KW, which has a large power, resulting in high electricity costs and cannot be installed and applied in small computer rooms and base stations. Second, the cost of the fluorine pump air conditioner is relatively high. Summary of the Invention

[0008] In order to solve the problems existing in the prior art, the present invention provides 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 of a computer room or a base station, an internal heat absorber installed inside the base station wall, an external radiator installed outside the base station wall, and a controller installed on the top of the internal heat absorber; Among them, the internal heat absorber and the external radiator are connected by two cooling circulation pipes passing through the base station wall. At least one circulation pump is installed on the pipeline of one of the cooling circulation pipes, and a coolant is filled in the cooling circulation pipes; This energy-saving cooling system mainly utilizes the cool and suitable climate characteristics in the northwest region. The coolant circulates between the internal heat absorber and the external radiator in the cooling circulation pipes. When flowing to the external radiator, under the action of the ambient temperature, the coolant releases heat and its own temperature decreases, completing "heat release"; when the coolant flows to the internal heat absorber, the coolant absorbs the heat in the base station and its own temperature increases, completing "heat absorption", so as to achieve the effect of cooling the base station.

[0010] The two cooling circulation pipes are connected in an "8" shape. The cooling circulation pipe led out from the upper half of the internal heat absorber is connected to the lower half of the external radiator, and the cooling circulation pipe led out from the lower half of the internal heat absorber is connected to the upper half of the external radiator.

[0011] The "8" - shaped connection form of the cooling circulation pipes can achieve a better heat exchange effect.

[0012] Furthermore, in order to improve the "heat absorption" and "heat release" effects of the coolant in the cooling circulation pipes, finned radiators are provided in both the internal heat absorber and the external radiator. The two cooling circulation pipes are respectively connected to the liquid outlet and the liquid inlet of the radiator, and an outer casing is provided outside the radiator.

[0013] Furthermore, a filter screen is installed on one side surface of the outer casing facing the base station wall, and a number of evenly distributed ventilation holes are provided on the side surface of the outer casing facing away from the base station wall; among them, a fan is provided between the ventilation holes and the radiator. The fan is used to drive air to enter through the filter screen and then 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.

[0014] Furthermore, the radiator includes: a tubular radiator and a belt - type radiator. The tubular radiator is close to the installation end of the filter screen, and the belt - type radiator is close to the installation end of the fan and the filter screen. Both the tubular radiator and the belt - type radiator are provided with a number of parallel - arranged heat - dissipating fins, and the heat - dissipating fins are mainly used to increase the heat - dissipating area.

[0015] Further, the circular tubes inside the tubular radiator are cylindrical in shape, and the flat tubes inside the belt radiator are flat in shape. Both the circular tubes and the flat tubes are used for the circulating flow of the coolant. Transition connection sleeves communicating with the inner cavities of the flat tubes are provided at both ends of the belt radiator, and transition connection pipes communicating with the circular tubes of the tubular radiator are provided on the transition connection sleeves. The circular tubes inside the tubular radiator have a larger contact area with the air flowing through the inside, and the heat dissipation effect is better. However, the circular tubes inside will hinder the air flow and are not conducive to flushing the dirt on the heat dissipation fins. The flat tubes of the belt radiator have a smaller contact area with the air flowing through the inside, and the heat dissipation effect is poor. However, they do not hinder the air flow. At the same time, during cleaning, it is conducive to thoroughly flushing the internal structure and is easy to maintain. Therefore, the radiator composed of the tubular radiator and the belt radiator can ensure the heat dissipation effect while facilitating the cleaning of the inside of the heat dissipation fins.

[0016] Further, a transition cavity is provided on the transition connection sleeve. One end of the transition cavity communicates with the flat tube, and the other end of the transition cavity communicates with the transition connection pipe.

[0017] Further, temperature sensors one and two for measuring the inlet liquid temperature and the outlet liquid temperature are respectively installed on the two cooling circulation pipes connected to the internal heat absorber. A temperature sensor three for measuring the internal environment temperature of the computer room or the base station is installed on the top of the internal heat absorber. A temperature sensor four for measuring the external environment temperature of the computer room or the base station is installed on the top of the external heat dissipator.

[0018] Further, in order to monitor the working effect of the circulation pump, a flow meter is installed on another cooling circulation pipe connecting the internal heat absorber and the external heat dissipator.

[0019] Further, the controller is respectively connected to the air conditioner, the circulation pump, the fans on the internal heat absorber and the external heat dissipator for controlling the temperature inside the computer room or the base station. The controller is connected to temperature sensor one, temperature sensor two, temperature sensor three, temperature sensor four, and the flow meter to receive temperature and flow signals.

[0020] The technical effect of the present invention is as follows: According to data statistics, the temperature difference between day and night in the western region is relatively large, and the actual outdoor temperature at night is higher than 20°C for less than 20 days. The present invention is a system that mainly uses the natural environment for energy-saving cooling. In particular, it uses the cool outdoor air in the western region as the main cold source, uses the coolant circulating between the internal heat absorber inside the base station wall and the external heat dissipator outside the base station wall as the main medium for cooling and temperature control, and uses the air conditioner as a supplementary cold source to control the temperature inside the base station, which can greatly reduce the energy consumption for base station cooling.

[0021] Antifreeze can be added to the coolant to avoid the problem of freezing and cracking of the cooling circulation pipes in winter. In addition, the heat exchange effect of this solution depends on various factors such as the flow rate and flow of the coolant, the heat exchange area of the radiator, and the wind speed of the fan. By setting multiple temperature sensors to detect the inlet temperature, outlet temperature of the coolant, and the internal and external environmental temperatures, on this basis, the controller controls the air conditioning equipment used for auxiliary refrigeration to ensure that the temperature inside the base station is suitable for the stable operation of information technology equipment whether in hot summer or cold winter. At the same time, through experimental tests, compared with the existing technology, as an auxiliary cold source, the air conditioner will only be turned on when the outdoor temperature is higher than 20°C, thus reducing the operation duration of the air conditioner and significantly decreasing the power consumption of the air conditioner. When the outdoor temperature is lower than 20°C, only the internal heat absorber and the external heat radiator need to be used to meet the requirement that the temperature inside a general base station does not exceed 28°C. The circulation pump and the fan can use variable-frequency products, which have a smaller power compared to the compressor in the air conditioner, further reducing the economic operation cost of the equipment.

[0022] At the same time, only the coolant is used for "heat release" and "heat absorption" between the internal heat absorber and the external heat radiator of the present invention, and the cooling process exchanges air with the outside, avoiding the entry of dust and particulate matter from the outside into the base station. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a perspective view of the cooling system in the present invention; Figure 2 is a perspective view of the cooling system in the present invention; Figure 3 is a perspective view of the radiator in the present invention; Figure 4 is a schematic connection diagram of the controller and each control unit in the present invention.

[0024] In the figure, 1. base station wall, 2. air conditioner, 3. internal heat absorber, 4. external heat radiator, 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. appearance box, 31. fan, 32. radiator, 33. filter, 301. ventilation hole, 321. tubular radiator, 322. belt radiator, 323. transition connection sleeve, 324. transition connection pipe, 325. heat dissipation fin, 3231. transition cavity. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following will be combined with Figures 1 to 4 to describe the detailed embodiments of the present invention.

[0026] Figure 1 and Figure 2Schematically shows the overall structure of the cooling system and the connection position relationship between the main components, including the relative alignment relationship of the fan 31, radiator 32, and filter screen 33 within a partial outer casing 30. This energy-saving cooling system includes: an air conditioner 2 installed inside the base station wall 1 of a computer room or base station, an internal heat absorber 3 installed inside the base station wall 1, an external heat dissipator 4 installed outside the base station wall 1, and a controller 9 installed on the top of the internal heat absorber 3; among them, the internal heat absorber 3 and the external heat dissipator 4 are connected by two cooling circulation pipes 5 passing through the base station wall 1, and at least one circulation pump 7 is installed on the pipeline of one of the cooling circulation pipes 5, and a coolant is filled in the cooling circulation pipe 5.

[0027] The two cooling circulation pipes 5 are connected in an "8" shape. The cooling circulation pipe 5 led out from the upper half of the internal heat absorber 3 is connected to the lower half of the external heat dissipator 4, and the cooling circulation pipe 5 led out from the lower half of the internal heat absorber 3 is connected to the upper half of the external heat dissipator 4.

[0028] Finned radiators 32 are provided inside both the internal heat absorber 3 and the external heat dissipator 4. The two cooling circulation pipes 5 are respectively connected to the liquid outlet and the liquid inlet of the radiator 32, and an outer casing 30 is provided outside the radiator 32; a filter screen 33 is installed on one side surface 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 surface of the outer casing 30 facing away from the base station wall 1, and a fan 31 is provided between the ventilation holes 301 and the radiator 32.

[0029] Temperature sensors one 10 and two 11 for measuring the inlet liquid temperature and the outlet liquid temperature are respectively installed on the two cooling circulation pipes 5 connected to the internal heat absorber 3. A temperature sensor three 12 for measuring the internal environment temperature of the computer room or base station is installed on the top of the internal heat absorber 3. A temperature sensor four 13 for measuring the external environment temperature of the computer room or base station is installed on the top of the external heat dissipator 4. A flow meter 6 is installed on the other cooling circulation pipe 5 connecting the internal heat absorber 3 and the external heat dissipator 4.

[0030] Figure 3 Schematically shows the internal structure of the radiator. The radiator 32 includes: a tubular radiator 321 and a belt radiator 322. The tubular radiator 321 is installed close to the filter screen 33 end, and the belt radiator 322 is installed close to the fan 31 end. The tubular radiator 321 and the belt radiator 322 are both provided with a number of parallel arranged heat dissipation fins 325.

[0031] The inside of the tubular radiator 321 is a cylindrical round pipe, and the inside of the belt radiator 322 is a flat-shaped flat pipe. Both the round pipe and the flat pipe are used for the coolant to circulate. Transition connection sleeves 323 communicating with the inner cavity of the flat pipe are provided at both ends of the belt radiator 322, and transition connection pipes 324 communicating with the round pipe of the tubular radiator 321 are provided on the transition connection sleeves 323.

[0032] The transition connection sleeve 323 is provided with a transition cavity 3231. One end of the transition cavity 3231 is communicated with the flat tube, and the other end of the transition cavity 3231 is communicated with the transition connection pipe 324.

[0033] Figure 4 Fig. shows a schematic diagram of the part connected to the controller. The controller 9 is respectively connected to the fans 31 on the air conditioner 2, the circulation pump 7, the internal heat absorber 3 and the external radiator 4, and is used to control the temperature inside the computer room or base station. The controller 9 is connected to the temperature sensor 10, the temperature sensor 11, the temperature sensor 12, the temperature sensor 13 and the flow meter 6 to receive temperature and flow signals.

[0034] Working principle: Generally, the temperature inside the base station is required not to exceed 28°C. When the outdoor temperature is lower than 20°C, first turn on the circulation pump 7 and the fan 31. For the external radiator 4, the fan 31 rotates to drive the outdoor air to enter the outer casing 30 from the filter screen 33, flow through the radiator 32, and the heat dissipation fins 325 on the radiator 32 release heat into the air, and the air discharges with the heat from the ventilation hole 301, which is the "heat release" process; Driven by the circulation pump 7, after the low-temperature coolant after releasing heat passes through the tubular radiator 321 and the belt radiator 322 in sequence and the coolant temperature drops, it enters the internal heat absorber 3 along the cooling circulation pipe 5; The fan 31 of the internal heat absorber 3 rotates to drive the air inside the base station to flow through the radiator 32, and 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 12 on the internal heat absorber (3) monitors the temperature inside the base station. When the temperature is lower than the control requirement, the controller 9 can adjust the flow rate of the coolant or the "heat release" and "heat absorption" effects by changing the frequency or start / stop of the circulation pump 7 or the fan 31 to ensure that the temperature inside the base station is controllable.

[0035] When the temperature sensor 13 detects that the outdoor temperature outside the base station is between 20°C and 28°C, the controller 9 starts the air conditioner 2 as an auxiliary cooling device, and the circulation pump 7 and the fan 31 on the internal heat absorber 3 and the external radiator 4 still keep working to jointly meet the temperature control requirements of the base station.

[0036] When the temperature sensor 13 detects that the outdoor temperature outside the base station is higher than 28°C, the controller 9 starts the air conditioner 2 as the main cooling device, and the circulation pump 7 and the fan 31 on the internal heat absorber 3 and the external radiator 4 stop working, and the air conditioner 2 alone meets the temperature control requirements of the base station.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An energy-saving and cooling system for a machine room or a base station, characterized in that: The energy-saving and cooling system comprises: an air conditioner (2) arranged inside a base station wall (1) of a machine room or a base station, an internal heat sink (3) installed inside the base station wall (1), an external heat sink (4) installed outside the base station wall (1), and a controller (9) arranged on the top of the internal heat sink (3); The internal heat absorber (3) and the external heat sink (4) are connected via 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) is filled with coolant; The two cooling circulation pipes (5) are connected in an "8" shape. The cooling circulation pipe (5) led out from the upper part of the internal heat absorber (3) is connected to the lower part of the external heat dissipator (4), and the cooling circulation pipe (5) led out from the lower part of the internal heat absorber (3) is connected to the upper part of the external heat dissipator (4).

2. The energy-saving and cooling system for a computer room or a base station according to claim 1 is characterized in that: The internal heat absorber (3) and the external heat dissipator (4) are both provided with a finned radiator (32), two cooling circulation pipes (5) are respectively connected to the liquid outlet and the liquid inlet of the radiator (32), and an external casing (30) is provided outside the radiator (32).

3. The energy-saving and cooling system for a computer room or a base station according to claim 2 is characterized in that: A filter screen (33) is installed on a surface of the exterior box (30) facing the base station wall (1), and a plurality of evenly distributed ventilation holes (301) are provided on a surface of the exterior box (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 and cooling system for a computer room or a base station according to claim 3 is characterized in that: The radiator (32) comprises: a tube radiator (321) and a belt radiator (322); the tube radiator (321) is close to the filter (33) installation end, and the belt radiator (322) is close to the fan (31) installation end; and both the tube radiator (321) and the belt radiator (322) are provided with a plurality of parallelly arranged heat dissipation fins (325).

5. The energy-saving and cooling system for a computer room or a base station according to claim 4, characterized in that: The interior of the tube radiator (321) is a cylindrical round tube, and the interior of the belt radiator (322) is a flat tube. Both the round tube and the flat tube are used for the circulation of cooling liquid. Transition connection sleeves (323) communicating with the inner cavity of the flat tube are provided at both ends of the belt radiator (322). The transition connection sleeve (323) is provided with a transition connection pipe (324) communicating with the round tube of the tube radiator (321).

6. The energy-saving and cooling system for a computer room or a base station according to claim 5, characterized in that: The transition connection 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 connection pipe (324).

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

8. The energy-saving and cooling system for a computer room or a base station 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 sink (4).

9. The energy-saving and cooling system for a computer room or a base station according to claim 8, characterized in that: The controller (9) is respectively connected to the air conditioner (2), the circulation pump (7), the internal heat absorber (3) and the fan (31) on the external heat sink (4) to control the temperature inside the machine room or the base station. The controller (9) is connected to a temperature sensor 1 (10), a temperature sensor 2 (11), a temperature sensor 3 (12), a temperature sensor 4 (13) and a flow meter (6) to receive temperature and flow signals.

Images