CN211011664U - Modular double-cold-source data center cooling system combined with fresh air - Google Patents

Abstract

The utility model discloses a modular double-cold-source data center cooling system combined with fresh air, which comprises a fresh air processing section module, an air mixing section module, a water evaporation refrigerating section module and a mechanical refrigerating section module; the system has the outstanding advantages of convenience in assembly, small maintenance amount, high reliability, low energy consumption and the like, achieves micro-positive pressure of a protective space on the basis of ensuring clean environment of the data center, can automatically adjust the configuration of a cold source according to the actual condition of the natural environment, and achieves the maximization of energy conservation.

Description

Modular double-cold-source data center cooling system combined with fresh air

Technical Field

The utility model relates to a data center's cooling device specifically is a two cold source data center cooling system of modularization with new trend combination.

Background

There are a lot of corrosive gases (such as H2S, HC L, SOx, NOx, etc.) and dust particles in the atmosphere, and there are a lot of data processing equipment in the data center, and if outdoor air is directly taken into indoor air without processing, these precision instruments will suffer serious corrosion, which affects its normal use.

The data center can emit a large amount of heat energy due to data exchange and storage, and the heat energy needs to be taken away by air flow so as to avoid the downtime of the server. Due to the particularity of the data center, the airflow temperature cannot be too low or too high, condensation can be caused when the airflow temperature is too low, and short circuit of each data module is easily caused; too high heat is not carried away, and the work of the data module is also influenced.

Data centers generally work all year round, and equipment generates heat all year round and needs to take away the heat. Because the temperature difference of the nature in all seasons is large, the heat exchange with the nature can be directly carried out by utilizing the large difference between the temperature difference of the nature in all seasons and the temperature difference of day and night; meanwhile, evaporation refrigeration with less water content in northern air is utilized to achieve the aim of high efficiency and energy saving.

At present, cooling equipment of a data center is basically separated from fresh air, the fresh air is responsible for the positive pressure environment of the data center, and the cooling equipment is realized by full return air through water evaporation or mechanical refrigeration (direct expansion and water cooling). The condition is not beneficial to achieving the maximum energy saving according to the four seasons and the temperature difference between day and night, and is also not beneficial to adjusting the temperature difference according to the four seasons to achieve the purpose of saving energy. On one hand, mechanical refrigeration is not good for a compressor refrigeration system due to low refrigeration at ambient temperature, and the compressor cannot work under severe conditions, so that the compressor can be cooled by utilizing the low-temperature environment in the nature at the moment; on the other hand, in autumn, the climate is dry, water is easy to evaporate, absorb heat and reduce temperature, so that natural dryness and wetness can be completely utilized to adjust the temperature difference.

The patent 2019101562507 "data center air conditioning system with mechanical refrigeration system combined with natural cooling" describes that water or glycol is used as primary or secondary medium, after heat exchange with the outside, the water or glycol flows to the data center through a pipeline, and exchanges heat with the indoor air of the data center. The existing pipeline system is complex, the temperature difference of nature in four seasons and day and night is not directly utilized, heat exchange with water or glycol is needed, and the heat exchange efficiency is reduced. And the water leakage of the pipeline can bring irreparable loss to the data center. In addition, the micro-positive pressure environment required by the data center needs to be maintained by an additional fresh air machine, so that the equipment and maintenance cost is increased.

Therefore, the problem can be solved by developing a modular double-cold-source data center cooling system combined with fresh air.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provide a modular double-cold-source data center cooling system combined with fresh air, and provide a fresh air processing section module, a mixed air section module, a water evaporation refrigerating section module and a mechanical refrigerating section module; day and night temperature difference of fresh air in a micro-positive pressure environment and four-season dry and wet conditions required by a data center are fully utilized for adjustment, so that high efficiency and energy conservation are realized; the modular combination is simple and convenient to install, refrigeration of a low-temperature compressor is avoided, and the reliability is high; the self-cleaning filter is adopted, so that the labor and the filter replacement and maintenance cost are reduced, and the cost is low; air of suitable humiture directly sends into through air duct system gets into data center, avoids the installation maintenance of complicated pipe-line system and too much equipment, on guaranteeing that data center environment is clean basis, realizes the guard space pressure-fired, and the system can realize energy-conserving maximize according to the configuration of natural environment's actual conditions automatically regulated cold source.

The utility model provides a technical scheme: the system comprises a fresh air processing section module, an air mixing section module, a water evaporation refrigerating section module and a mechanical refrigerating section module; the fresh air processing section module comprises a fresh air processing box, a first air inlet arranged on one side of the fresh air processing box, a first air outlet arranged on the other side of the fresh air processing box, a first air valve arranged at the first air inlet, a self-cleaning filtering device arranged in the fresh air processing box and close to the first air inlet, a chemical filter arranged in the fresh air processing box and close to the output end of the self-cleaning filtering device, and a middle-effect physical filter arranged in the fresh air processing box and close to the first air outlet; the air mixing section module comprises an air mixing box, a second air inlet, a second air outlet, a first fan, a high-efficiency physical filter, a return air inlet, a second air valve, a return air pipe, a second fan and a third air valve, wherein the second air inlet is arranged on one side of the air mixing box and is matched with the first air outlet; the water evaporation refrigerating section module comprises a water evaporation refrigerating box, a third air inlet, a third air outlet and a water evaporation refrigerating system, wherein the third air inlet is arranged on one side of the water evaporation refrigerating box and is matched with the second air outlet; mechanical refrigeration section module, it includes mechanical refrigeration case, set up in mechanical refrigeration case one side and with No. four air intakes of No. three air outlet assorted, set up left compartment and right compartment in mechanical refrigeration case, set up in right compartment and be close to the evaporation plant of No. four air intake department, set up in left compartment and be located the condensing equipment of evaporation plant opposite side.

Preferably, automatically cleaning filter equipment, it includes that one end is connected with an air intake and the other end is close to the air pipe of chemical filter input, set up in air pipe and the opening towards the dust collection box of air pipe input, set up in air pipe and afterbody and dust collection box input relative position be connected and the inwards-inclined two sets of blades of bending, the tortuous air runner of defining out between the adjacent blade of bending, set up the guide plate between two sets of blades of bending, the input is connected and the output runs through air pipe's No. three fan with dust collection box output.

Preferably, the bent blades are connected with the dust collecting box and arranged in a V-shaped structure.

Preferably, the input end of the zigzag air flow passage is opposite to the input end of the ventilation duct.

Preferably, the bending angle of the bending blade is degree-degree.

Preferably, the water evaporation refrigeration system comprises a first heat preservation water tank arranged at the bottom in the water evaporation refrigeration box and close to a third air inlet end, a heat exchanger arranged in the water evaporation refrigeration box and positioned at the top of the first heat preservation water tank, an aluminum pipe arranged on the heat exchanger, a first circulating water pump arranged in the water evaporation refrigeration box and the input end of the first circulating water pump is connected with the first heat preservation water tank, a first water delivery pipe with one end connected with the output end of the first circulating water pump and the other end positioned above the heat exchanger, a plurality of first sprayers arranged on the lower surface of the first water delivery pipe and positioned above the heat exchanger, a fourth fan arranged at the top of the water evaporation refrigeration box and positioned above the first water delivery pipe, a water tank support frame arranged at the bottom in the water evaporation refrigeration box and positioned at one side of the first heat preservation water tank, a second heat preservation water tank arranged on the water tank support frame, and a humidifier arranged on the second heat preservation water tank, The wet film of setting on No. two holding water boxes, set up No. two sprayers on the wet film, set up No. two circulating water pump in No. two holding water boxes, No. two raceway that one end is connected with No. two circulating water pump and the other end is connected with No. two sprayers, a honeycomb duct that one end is connected with a holding water box and the other end is connected with No. two holding water boxes, set up on a honeycomb duct and be close to a solenoid valve of a holding water box, set up on a honeycomb duct and be close to a solenoid valve of No. two holding water boxes, set up the grid of a holding water box both sides in the evaporation of water refrigeration incasement.

Preferably, the first heat preservation water tank is provided with a first sewage draining outlet, and the second heat preservation water tank is provided with a second sewage draining outlet.

Preferably, the evaporation plant of mechanical refrigeration section module, it is including setting up the bottom in the right compartment and being close to the water-collecting tray of No. four air inlets departments, one end is connected with the water-collecting tray and the one end is connected with holding water box No. two honeycomb ducts, set up in the right compartment and the bottom is connected with the water-collecting tray top evaporator, set up at the right compartment bottom water-collecting tray opposite side and be located the supply-air outlet of evaporator below, the blast pipe that one end is connected with the supply-air outlet, set up the expansion throttle valve at the evaporimeter input end department.

Preferably, the condensing equipment of mechanical refrigeration section module, it is including setting up the compressor of bottom in the left compartment, set up in the left compartment and be located the condenser of compressor top, a refrigerant connecting pipe that one end is connected with the evaporimeter output and the other end is connected with the compressor input, a refrigerant connecting pipe that one end is connected with the compressor output and the other end is connected with the condenser input, the condenser output directly leads to right compartment and links to each other with the expansion throttle valve in the right compartment, set up at the top of left compartment and be located the fan No. five of condenser top, set up No. two grids in left compartment bottom.

The utility model has the advantages that: the utility model has the characteristics of reasonable and simple structure, low production cost, convenient installation and complete functions, and the utility model has the combination of fresh air and an air conditioner, and reduces the one-time investment and the maintenance cost; day and night temperature difference of fresh air in a micro-positive pressure environment and four-season dry and wet conditions required by a data center are fully utilized for adjustment, so that high efficiency and energy conservation are realized; the modular combination is simple and convenient to install, refrigeration of a low-temperature compressor is avoided, and the reliability is high; the self-cleaning filter is adopted, so that the labor and the filter replacement and maintenance cost are reduced, and the cost is low; air of suitable humiture directly sends into through air duct system gets into data center, avoids the installation maintenance of complicated pipe-line system and too much equipment, on guaranteeing that data center environment is clean basis, realizes the guard space pressure-fired, and the system can realize energy-conserving maximize according to the configuration of natural environment's actual conditions automatically regulated cold source.

Drawings

For ease of illustration, the invention is described in detail by the following detailed description and accompanying drawings.

FIG. 1 is a schematic diagram of the present invention;

FIG. 2 is a schematic diagram of a fresh air processing section module of the present invention;

FIG. 3 is a schematic diagram of the wind mixing section module of the present invention;

fig. 4 is a schematic diagram of an evaporation refrigeration section module of the present invention;

fig. 5 is a schematic diagram of the mechanical refrigeration section of the present invention.

1-fresh air treatment box; 2-a first air inlet; 3-a first air outlet; 4-a blast gate; 5-a chemical filter; 6-an intermediate-efficiency physical filter; 7-air mixing box; 8-second air inlet; 9-second air outlet; 10-a fan; 11-high efficiency physical filter; 12-air return; 13-second blast gate; 14-air return pipe; 15-second blower fan; 16-third blast gate; 17-a water evaporation refrigeration box; 18-third air inlet; 19-third air outlet; 20-mechanical refrigeration box; 21-fourth air inlet; 22-left compartment; 23-right compartment; 24-a ventilation duct; 25-a dust collection box; 26-bending the blade; 27-tortuous air flow path; 28-third fan; 29-a heat preservation water tank; 30-a heat exchanger; 31-aluminum tube; 32-a circulating water pump; 33-a water delivery pipe; 34-a sprayer; 35-fourth blower; 36-a water tank support frame; 37-a humidifier; 38-wet film; 39-second water delivery pipe; 40-second spray thrower; 41-a honeycomb duct; 42-first electromagnetic valve; 43-second electromagnetic valve; 44-first grid; 45-a first sewage draining outlet; 46-a second sewage draining outlet; 47-a water collection tray; 48-a second honeycomb duct; 49-an evaporator; 50-air supply outlet; 51-blast pipe; 52-a compressor; 53-refrigerant connecting pipe; 54-a condenser; 55-five blower fan; 56-second refrigerant connecting pipe; 57-expansion throttle valve; 58-grid No. two; 59-a deflector; 60-second heat preservation water tank; 61-No. two circulating water pump.

Detailed Description

As shown in fig. 1 to 5, the following technical solutions are adopted in the present embodiment: the system comprises a fresh air processing section module, an air mixing section module, a water evaporation refrigerating section module and a mechanical refrigerating section module; the fresh air processing section module comprises a fresh air processing box 1, a first air inlet 2 arranged on one side of the fresh air processing box 1, a first air outlet 3 arranged on the other side of the fresh air processing box 1, a first air valve 4 arranged at the first air inlet 2, a self-cleaning filtering device arranged in the fresh air processing box 1 and close to the first air inlet 2, a chemical filter 5 arranged in the fresh air processing box 1 and close to the output end of the self-cleaning filtering device, and an intermediate-efficiency physical filter 6 arranged in the fresh air processing box 1 and close to the first air outlet 3; the air mixing section module comprises an air mixing box 7, a second air inlet 8 which is arranged on one side of the air mixing box 7 and is matched with the first air outlet 3, a second air outlet 9 which is arranged on the other side of the air mixing box 7, a first fan 10 which is arranged in the air mixing box 7 and is close to the second air inlet 8, a high-efficiency physical filter 11 which is arranged on the other side of the first fan 10 in the air mixing box 7 and is close to the second air outlet 9, an air return inlet 12 which is arranged at the top of the air mixing box 7 and is close to the second air inlet 8, a second air valve 13 which is arranged at the air return inlet 12, an air return pipe 14 of which one end is connected with the air return inlet 12, a second fan 15 which is arranged at the top of the other end of the air return pipe 14, and a third air valve 16 which is arranged at the second; the water evaporation refrigerating section module comprises a water evaporation refrigerating box 17, a third air inlet 18 which is arranged on one side of the water evaporation refrigerating box 17 and is matched with the second air outlet 9, a third air outlet 19 which is arranged on the other side of the water evaporation refrigerating box 17, and a water evaporation refrigerating system which is arranged in the water evaporation refrigerating box 17 and is positioned between the third air inlet 18 and the third air outlet 19; the mechanical refrigeration section module comprises a mechanical refrigeration box 20, a fourth air inlet 21, a left compartment 22 and a right compartment 23, an evaporation device and a condensation device, wherein the fourth air inlet 21 is arranged on one side of the mechanical refrigeration box 20 and matched with the third air outlet 19, the left compartment 22 and the right compartment 23 are arranged in the mechanical refrigeration box 20, the evaporation device is arranged in the right compartment 23 and is close to the fourth air inlet 21, and the condensation device is arranged in the left compartment 22 and is located on the other side of the evaporation device.

The self-cleaning filtering device comprises a ventilation pipeline 24, a dust collecting box 25, two groups of bent blades 26, a bent air flow channel 27, a flow guide plate 59 and a third fan 28, wherein one end of the ventilation pipeline 24 is connected with a first air inlet 2, the other end of the ventilation pipeline 24 is close to the input end of a chemical filter 5, the dust collecting box 25 is arranged in the ventilation pipeline 24, the opening of the dust collecting box faces the input end of the ventilation pipeline 24, the two groups of bent blades 26 are arranged in the ventilation pipeline 24, the tail parts of the bent blades are connected with the dust collecting box 25 in an input opposite position, the bent blades are inclined inwards, the bent air flow channel 27 is defined between the; the bent blades 26 are connected with the dust collecting box 25 and are distributed in a V-shaped structure; the input end of the zigzag air flow passage 27 is opposite to the input end of the ventilation duct 24; the bending angle of the bending blade 26 is 60-150 degrees; the water evaporation refrigerating system comprises a first heat preservation water tank 29 which is arranged at the bottom in the water evaporation refrigerating box 17 and is close to the third air inlet 18 end, a heat exchanger 30 which is arranged in the water evaporation refrigerating box 17 and is positioned at the top of the first heat preservation water tank 29, an aluminum pipe 31 arranged on the heat exchanger 30, a first circulating water pump 32 which is arranged in the water evaporation refrigerating box 17 and is connected with the first heat preservation water tank 29 at the input end, a first water conveying pipe 33 of which one end is connected with the output end of the first circulating water pump 32 and the other end is positioned above the heat exchanger 30, a plurality of first sprayers 34 which are arranged at the lower surface of the first water conveying pipe 33 and are positioned above the heat exchanger 30, a fourth fan 35 which is arranged at the top of the water evaporation refrigerating box 17 and is positioned above the first water conveying pipe 33, a water tank support frame 36 which is arranged at the bottom in the water evaporation refrigerating box 17 and is positioned at one side of the first heat preservation water tank, A humidifier 37 arranged on the second heat-preservation water tank 60, a wet film 38 arranged on the second heat-preservation water tank 60, a second sprayer 40 arranged on the wet film 38, a second circulating water pump 61 arranged in the second heat-preservation water tank 60, a second water pipe 39 with one end connected with the second circulating water pump 61 and the other end connected with the second sprayer 40, a first guide pipe 41 with one end connected with the first heat-preservation water tank 29 and the other end connected with the second heat-preservation water tank 60, a first electromagnetic valve 42 arranged on the first guide pipe 41 and close to the first heat-preservation water tank 29, a first electromagnetic valve 42 arranged on the first guide pipe 41 and close to the second heat-preservation water tank 60, and a first grating 44 arranged on two sides of the first heat-preservation water tank 29 in the water evaporation and refrigeration box 17; a first sewage outlet 45 is formed in the first heat preservation water tank 29, and a second sewage outlet 46 is formed in the second heat preservation water tank 60; the evaporation device of the mechanical refrigeration section module comprises a water collecting tray 47 which is arranged at the bottom in the right compartment 23 and is close to the fourth air inlet 21, a second guide pipe 48 of which one end is connected with the water collecting tray 47 and the other end is connected with the first heat-preservation water tank 29, an evaporator 49 which is arranged in the right compartment 23 and of which the bottom is connected with the top of the water collecting tray 47, an air supply outlet 50 which is arranged at the other side of the water collecting tray 47 at the bottom of the right compartment 23 and is positioned below the evaporator 49, an air supply pipe 51 of which one end is connected with the air supply outlet 50, and an expansion throttle valve 57 which is arranged at the input; the condensing device of the mechanical refrigeration section module comprises a compressor 52 arranged at the bottom in the left compartment 22, a condenser 54 arranged in the left compartment 22 and positioned above the compressor 52, a first refrigerant connecting pipe 53 with one end connected with the output end of the evaporator 49 and the other end connected with the input end of the compressor 52, a first refrigerant connecting pipe 56 with one end connected with the output end of the compressor 52 and the other end connected with the input end of the condenser 54, an expansion throttle valve 57 with the output end of the condenser 54 directly communicated with the right compartment 23 and positioned in the right compartment 23, a fifth fan 55 arranged at the top of the left compartment 22 and positioned above the condenser 54, and a second grille 58 arranged at the bottom of the left compartment 22.

The utility model discloses a user state does: examples

As shown in fig. 1, a modular dual-cold-source data center cooling system combined with fresh air mainly comprises a fresh air processing section, an air mixing section, a water evaporation refrigerating section and a mechanical refrigerating section, and modules of the sections can be manufactured independently and then combined or manufactured integrally.

As shown in fig. 1,2 and 3, when the system starts to work, the first fan 10 in the air mixing section module is started to draw air from the external environment, the external air flow (fresh air) a1 firstly passes through the first air valve 4 at a low speed and enters the self-cleaning filtering device, most of dust is separated, then the air flow passes through the chemical filter 5 and the middle-effect physical filter 6, the fresh air flow is purified, and the clean air flow a2 comes out through the first air outlet 3 of the fresh air processing section and then enters the air mixing section.

In the self-cleaning filter device, dust separated from the air flow a1 is discharged to the outside by the third fan 28.

In the chemical filter 5, harmful gas in the airflow and the impregnated material in the chemical filter 5 are subjected to chemical reaction to generate nontoxic and harmless gas, the nontoxic and harmless gas enters the middle-effect physical filter 6, small particle dust in the airflow is blocked by the filter again and is retained on the middle-effect physical filter 6, and when the wind resistance reaches a set value, the middle-effect physical filter 6 needs to be replaced.

As shown in fig. 1,2 and 3, a clean air stream a2 comes out of the first air outlet 3 of the fresh air treatment section module and enters the air mixing section module, and the first air blower 10 is mixed with the indoor return air stream b2 from the second air valve 13 of the return air inlet 12, is sent out by the first air blower 10, passes through the high-efficiency physical filter 11 to become a clean positive pressure air stream c1, and then enters the water evaporation refrigeration section.

As shown in fig. 3, air b1 coming out of the room and entering the return duct 14 passes through the third air valve 16, a part b3 is extracted by the second air fan 15 and discharged to the outside, and the other part b2 passes through the second air valve 13 and enters the air mixing section, is mixed with the air flow a2 coming from the first air outlet 3 of the fresh air processing section module and is sucked by the first air fan 10.

As shown in fig. 1, 3 and 4, the air flow C1 flows out of the air mixing processing section module second air outlet 9, passes through the water evaporation refrigerating section module third air inlet 18, then enters the inner side of the aluminum pipe 31 of the heat exchanger 30 of the water evaporation refrigerating section module, exchanges heat with the secondary air d2 cooled by evaporation, enters the humidifier 37 after the temperature is reduced, so that the drier air flow is humidified to a proper humidity (for example, the humidity is humidified by a wet film (38), the temperature can also be reduced), and the C2 air flow flows out of the water evaporation refrigerating section module third air outlet (19) and then enters the evaporation section of the mechanical refrigerating section module.

As shown in fig. 4, after the machine is started, the fourth fan 35 and the circulating water pump 32 are simultaneously started, the secondary air (external ambient air) d1 is sucked from the first grille 44, and contacts with the water sprayed from the first shower head on the periphery of the aluminum pipe 31, the water is evaporated in large quantity and absorbs heat due to the drying of the external ambient air, the sensible heat of the d1 air is converted into latent heat, and is converted into low-temperature secondary air d2, the secondary air d2 and the C1 from the mixing section exchange heat through the air flow of the aluminum pipe 31, the heat exchange is finished into secondary air d3, and the secondary air d3 is discharged from the discharge port of the fourth fan 35 to the outside.

As shown in fig. 4, after the machine is started, the fourth fan 35 and the circulating water pump 32 are started simultaneously, the circulating water pump 32 pumps water from the hot water tank 29, the water is conveyed to the sprayer 34 through the first water pipe 33, after the water is sprayed out through the sprayer 34, a part of secondary dry air d1 is contacted and evaporated into water vapor, the wet air d2 becomes lower temperature, the wet air exchanges heat with the air flow C1 in the aluminum pipe 31 to become d3, the wet air is discharged outwards by the fourth fan 35, and the other part of water which is not evaporated returns to the hot water tank 29 by gravity, and the circulation is carried out.

As shown in fig. 4, when the water in the thermal insulation water tank 29 is less than the set value due to evaporation, the first electromagnetic valve 42 is opened to supply water to the thermal insulation water tank 29, and is closed when the water tank reaches the highest water level, the water supply is stopped, and after a period of time, when the water tank needs to be cleaned, the wastewater is discharged from the first sewage outlet 45.

As shown in fig. 4, the humidifying part (humidifier 37) of the water evaporation refrigerating section is used in the winter drying, which is an optional function, and is not generally used in the summer.

As shown in fig. 4, when the humidifier 37 is required to operate (only the humidification process of the wet film 38 will be described below, and the other humidification processes will not be described any more), the second circulating water pump 61 in the humidifier 37 is started, water is sent to the second sprayer 40 through the second water pipe 39, the water flows downwards according to gravity, a part of the water and the water absorption of the wet film 38 are rapidly and uniformly distributed on the whole wet film 38, and then the water is contacted with the dry air flow coming out of the aluminum pipe 31 of the heat exchanger 30, the water is evaporated when encountering the dry air, the dry air flow is changed into the wet air C2 meeting the requirements, and the wet air flow enters the evaporation section of the mechanical refrigeration section from the third air outlet 19. The other part of water returns to the second heat preservation water tank 60 again according to the gravity, and the process is circulated.

As shown in fig. 4, when the water in the second holding water tank 60 is less than the set value due to evaporation, the second electromagnetic valve 43 is opened to supply water into the second holding water tank 60, and is closed when the water reaches the maximum water level of the second holding water tank 60, and the water supply is stopped, and after a period of time, when the second holding water tank 60 needs to be cleaned, the wastewater is discharged from the second sewage outlet 46.

As shown in fig. 1, 4, and 5, the air flow C2 flows out of the third air outlet 19 of the water evaporation cooling section module, then passes through the fourth air inlet 21 of the evaporation section of the mechanical cooling section module, then enters the evaporator 49 of the mechanical cooling section module, exchanges heat with the refrigerant in the evaporator 49, becomes the low temperature air flow C3, and is sent to the cabinets of the data center through the air supply pipe 51.

As shown in fig. 1, 4 and 5, the condensed water generated in the heat exchange process of the evaporator 49 is collected into the water collecting tray 47 by gravity, and then flows into the heat preservation water tank 29 in the water evaporation refrigerating section through the water level difference and the second guide pipe 48.

As shown in fig. 5, when the unit needs to operate in the mechanical refrigeration section, the compressor 52 and the condensing fan 55 are simultaneously started, the gaseous refrigerant is compressed by the compressor 52 to become high-temperature high-pressure gas, and is sent into the condenser 54 through the second refrigerant connecting pipe 56, where the gaseous refrigerant exchanges heat with the external ambient air e1 to become low-temperature high-pressure liquid, and then passes through the partition boards of the condensation section and the evaporation section to flow to the expansion throttling device 57 in the evaporation section, and after passing through the expansion throttling device 57, the refrigerant becomes low-temperature low-pressure liquid, and then flows into the evaporator 49 to be evaporated and absorb heat, and becomes low-temperature low-pressure gas, and returns to the compressor 52.

As shown in fig. 5, when the unit needs the operation of the mechanical refrigeration section module, the compressor 52 and the condensing fan 55 are started simultaneously, and the external environment air e1 enters through the second grille 58 of the mechanical refrigeration section module, enters the condenser 54 and exchanges heat with the high-temperature high-pressure gaseous refrigerant flowing through the condenser 54, becomes high-temperature air after heat exchange, and is discharged to the outside through the fifth fan 55.

Each module can be manufactured independently and then combined, and can also be manufactured integrally; the fan can be a volute centrifugal fan or a volute-free centrifugal fan; the chemical filter can be made of impregnated active granular carbon, or honeycomb carbon or ceramic filter material, and the medium-efficiency filter can be a plate filter or a bag filter; the high-efficiency filter can be a plate filter or a bag filter, and the filtering grade is adopted according to the requirement of a data center; the front of the fresh air and return air section is negative pressure induced draft, and the rear of the mixed air is positive pressure air supply, so that the treated air is not influenced by the outside; condensed water generated in the evaporation section is sent to the indirect evaporation water tank through a pipeline according to the self gravity, so that the temperature of water in the water tank is reduced, the energy is saved, and the water discharge is reduced; the condensing section can be connected with the unit into a whole as required, and can also be connected in a split manner to realize free connection.

The utility model has various implementation modes, such as the change of the humidification mode, only the mechanical refrigeration section, the water evaporation refrigeration section and other combination changes; evaporator 49 condenser 54 position changes, and so forth. All adopt the utility model discloses the two cold source data center cooling schemes of the modularization combination that the area relates to in all technical schemes that no matter what call changes or some equivalent transformations or equivalent transformations and forms such as material change or position change all are the protection scope of the utility model.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, and it should be understood by those skilled in the art that the present invention is not limited by the above embodiments, which are only illustrative, but also various changes and modifications may be made without departing from the spirit and scope of the present invention, which fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims (9)

1. A modular double-cold-source data center cooling system combined with fresh air is characterized by comprising a fresh air processing section module, an air mixing section module, a water evaporation refrigerating section module and a mechanical refrigerating section module;

the fresh air processing section module comprises a fresh air processing box (1), a first air inlet (2) arranged on one side of the fresh air processing box (1), a first air outlet (3) arranged on the other side of the fresh air processing box (1), a first air valve (4) arranged at the first air inlet (2), a self-cleaning filtering device arranged in the fresh air processing box (1) and close to the first air inlet (2), a chemical filter (5) arranged in the fresh air processing box (1) and close to the output end of the self-cleaning filtering device, and an intermediate-efficiency physical filter (6) arranged in the fresh air processing box (1) and close to the first air outlet (3);

the air mixing section module comprises an air mixing box (7), a second air inlet (8) which is arranged on one side of the air mixing box (7) and is matched with the first air outlet (3), a second air outlet (9) which is arranged on the other side of the air mixing box (7), a first fan (10) which is arranged in the air mixing box (7) and is close to the second air inlet (8), and a high-efficiency physical filter (11) which is arranged on the other side of the first fan (10) in the air mixing box (7) and is close to the second air outlet (9), an air return opening (12) which is arranged at the top of the air mixing box (7) and is close to the second air inlet (8), a second air valve (13) which is arranged at the air return opening (12), an air return pipe (14) with one end connected with the air return opening (12), a second fan (15) which is arranged at the top of the other end of the air return pipe (14), and a third air valve (16) which is arranged at the second fan (15);

the water evaporation refrigerating section module comprises a water evaporation refrigerating box (17), a third air inlet (18) which is arranged on one side of the water evaporation refrigerating box (17) and is matched with the second air outlet (9), a third air outlet (19) which is arranged on the other side of the water evaporation refrigerating box (17), and a water evaporation refrigerating system which is arranged in the water evaporation refrigerating box (17) and is positioned between the third air inlet (18) and the third air outlet (19);

mechanical refrigeration section module, it includes mechanical refrigeration case (20), set up in mechanical refrigeration case (20) one side and with No. four air intakes (21) of No. three air outlet (19) assorted, set up left compartment (22) and right compartment (23) in mechanical refrigeration case (20), set up in right compartment (23) and be close to the evaporation plant of No. four air intakes (21) department, set up in left compartment (22) and be located the condensing equipment of evaporation plant opposite side.

2. The modular dual-cold-source data center cooling system combined with fresh air as claimed in claim 1, the self-cleaning filtering device is characterized by comprising a ventilation pipeline (24), a dust collecting box (25), two groups of bending blades (26), a bent air flow channel (27), a guide plate (59) and a third fan (28), wherein one end of the ventilation pipeline (24) is connected with a first air inlet (2), the other end of the ventilation pipeline (24) is close to the input end of a chemical filter (5), the dust collecting box (25) is arranged in the ventilation pipeline (24), the opening of the dust collecting box faces the input end of the ventilation pipeline (24), the tail of the two groups of bending blades (26) is connected with the input opposite position of the dust collecting box (25) and inclines inwards, the bent air flow channel (27) is defined between the adjacent bending blades (26), the guide plate (59) is arranged between the two groups of.

3. The modular dual-cold-source data center cooling system combined with fresh air as claimed in claim 2, wherein the bent blades (26) are connected with the dust collection box (25) and arranged in a V-shaped structure.

4. The modular dual-cold-source data center cooling system combined with fresh air as claimed in claim 2, wherein the input end of the tortuous air flow channel (27) is opposite to the input end of the ventilation duct (24).

5. The modular dual-cold-source data center cooling system combined with fresh air as claimed in claim 2, wherein the bending angle of the bending blade (26) is 60-150 degrees.

6. The modular dual-cold-source data center cooling system combined with fresh air as claimed in claim 3, wherein the water evaporation refrigeration system comprises a first heat preservation water tank (29) arranged at the bottom in the water evaporation refrigeration tank (17) and close to the third air inlet (18), a heat exchanger (30) arranged in the water evaporation refrigeration tank (17) and positioned at the top of the first heat preservation water tank (29), an aluminum pipe (31) arranged on the heat exchanger (30), a first circulating water pump (32) arranged in the water evaporation refrigeration tank (17) and provided with an input end connected with the first heat preservation water tank (29), a first water pipe (33) provided with one end connected with an output end of the first circulating water pump (32) and provided with the other end positioned above the heat exchanger (30), and a plurality of first sprayers (34) arranged on the lower surface of the first water pipe (33) and positioned above the heat exchanger (30), A fourth fan (35) which is arranged at the top of the water evaporation refrigerating box (17) and is positioned above the first water delivery pipe (33), a water tank supporting frame (36) which is arranged at the bottom in the water evaporation refrigerating box (17) and is positioned at one side of the first heat preservation water tank (29), a second heat preservation water tank (60) which is arranged on the water tank supporting frame (36), a humidifier (37) which is arranged on the second heat preservation water tank (60), a wet film (38) which is arranged on the second heat preservation water tank (60), a second sprayer (40) which is arranged on the wet film (38), a second circulating water pump (61) which is arranged in the second heat preservation water tank (60), a second water delivery pipe (39) of which one end is connected with the second circulating water pump (61) and the other end is connected with the second sprayer (40), a first guide pipe (41) of which one end is connected with the first heat preservation water tank (29) and the other end is connected with the second heat preservation water tank, the water-cooling system comprises a first electromagnetic valve (42) which is arranged on a first flow guide pipe (41) and is close to a first heat-preservation water tank (29), a first electromagnetic valve (42) which is arranged on the first flow guide pipe (41) and is close to a second heat-preservation water tank (60), and first grids (44) which are arranged on two sides of the first heat-preservation water tank (29) in a water evaporation refrigerating box (17).

7. The modular dual-cold-source data center cooling system combined with fresh air as claimed in claim 6, wherein a first sewage outlet (45) is formed in the first heat-preservation water tank (29), and a second sewage outlet (46) is formed in the second heat-preservation water tank (60).

8. The modular dual-cold-source data center cooling system combined with fresh air as claimed in claim 1, wherein the evaporator of the mechanical refrigeration section module comprises a water collection tray (47) arranged at the bottom in the right compartment (23) and close to the fourth air inlet (21), a second draft tube (48) with one end connected with the water collection tray (47) and one end connected with the first heat preservation water tank (29), an evaporator (49) arranged in the right compartment (23) and with the bottom connected with the top of the water collection tray (47), an air supply outlet (50) arranged at the other side of the water collection tray (47) at the bottom of the right compartment (23) and located below the evaporator (49), an air supply pipe (51) with one end connected with the air supply outlet (50), and an expansion throttle valve (57) arranged at the input end of the evaporator (49).

9. The modular dual-cold-source data center cooling system combined with fresh air as claimed in claim 1, wherein the condensing device of the mechanical refrigeration section module comprises a compressor (52) arranged at the bottom in the left compartment (22), a condenser (54) arranged in the left compartment (22) and located above the compressor (52), a first refrigerant connecting pipe (53) with one end connected with the output end of the evaporator (49) and the other end connected with the input end of the compressor (52), a second refrigerant connecting pipe (56) with one end connected with the output end of the compressor (52) and the other end connected with the input end of the condenser (54), an expansion throttle valve (57) with one end directly leading to the right compartment (23) and the other end connected with the input end of the condenser (54), a fifth fan (55) arranged at the top of the left compartment (22) and located above the condenser (54), and a fifth fan (55), A second grille (58) disposed at the bottom of the left compartment (22).

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