CN217116742U

CN217116742U - Data center evaporative cooling air-conditioning system based on heat pipe fluorine pump

Info

Publication number: CN217116742U
Application number: CN202220288229.XU
Authority: CN
Inventors: 黄翔; 马钢; 杜妍; 王颖
Original assignee: Xian Polytechnic University
Current assignee: Xian Polytechnic University
Priority date: 2022-02-11
Filing date: 2022-02-11
Publication date: 2022-08-02
Anticipated expiration: 2032-02-11

Abstract

The utility model discloses a data center evaporative cooling air conditioning system based on a heat pipe fluorine pump, which comprises an indirect evaporation type water chilling unit, a mechanical refrigeration water chilling unit and a plate heat exchanger; mechanical refrigeration cooling water set is including connecting gradually evaporimeter, condenser, the compressor that constitutes closed loop, and the condenser passes through the indirect evaporation formula cooling water set of pipeline intercommunication, and the evaporimeter passes through pipe connection plate heat exchanger, the utility model discloses utilize fluorine pump + heat pipe + evaporative cooling technique to combine together, reform transform and newly-built data center to current data center and provide a more efficient radiating mode, improve data center thermal environment, reduce data center PUE.

Description

Data center evaporative cooling air-conditioning system based on heat pipe fluorine pump

Technical Field

The utility model belongs to the technical field of air conditioning equipment, concretely relates to data center evaporative cooling air conditioning system based on heat pipe fluorine pump.

Background

With the vigorous development of new national infrastructure, the data center industry is developed vigorously, the problem of energy consumption is increasingly prominent while the construction scale is continuously enlarged, and the reduction of the power consumption of an air conditioning system is imperative based on the characteristics of the data center and the requirements of a macro policy.

In the application of the traditional mechanical refrigeration in a data center, the energy consumption is high, the occupied area is large, and the arrangement of equipment pipelines is limited; the traditional air cooling air supply mode is adopted, the data center machine room is greatly restricted and the air flow is unstable, and local hot spots are easy to form; the traditional water-cooling air conditioning system is complex in arrangement and is not beneficial to safe operation of a data center.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a data center evaporative cooling air conditioning system based on heat pipe fluorine pump has solved the problem that traditional refrigerating system used energy consumption height.

The utility model discloses the technical scheme who adopts is, data center evaporative cooling air conditioning system based on heat pipe fluorine pump, including indirect evaporation formula cooling water set, indirect evaporation formula cooling water set is connected with mechanical refrigeration cooling water set and plate heat exchanger respectively, and mechanical refrigeration cooling water set and plate heat exchanger are connected, are provided with the fluorine pump in the data computer lab, and the laminating of data rack lee side is provided with the heat pipe backplate, and the inside refrigerant pipe that is provided with of heat pipe backplate, refrigerant pipe, fluorine pump, plate heat exchanger connect gradually and constitute closed circuit.

The utility model is also characterized in that,

the horizontal position of the plate heat exchanger is higher than that of the heat pipe back plate.

The indirect evaporative water chilling unit and the mechanical refrigeration water chilling unit are respectively provided with a three-way reversing valve at the joint with the plate heat exchanger.

The heat pipe back plate is fixedly connected with a back plate fan.

The indirect evaporative water chilling unit comprises a shell, wherein air inlets are formed in two opposite side walls of the shell respectively, a filler is arranged in the shell, a primary filter, a primary surface cooler and a secondary surface cooler are arranged between the air inlets at two ends and the filler respectively, a nozzle, a water baffle and an exhaust fan are sequentially arranged above the filler, an air outlet is formed in the shell wall corresponding to the exhaust fan, a water storage tank is arranged below the filler, the nozzle is communicated with a unit water return pipeline through a pipeline, a water return pump is arranged on the pipeline through which the nozzle is communicated with the unit water return pipeline, and the primary surface cooler, the secondary surface cooler and the water storage tank are respectively provided with a water outlet and a water return port which are communicated with a condenser and the plate heat exchanger through a unit water supply pipeline and the unit water return pipeline.

The lower part of the filler is arranged in an inverted triangle.

The mechanical refrigeration water chilling unit comprises an evaporator, a condenser and a compressor which are sequentially connected to form a closed loop, the condenser is communicated with the indirect evaporation type water chilling unit, and the evaporator is communicated with the plate heat exchanger.

The utility model has the advantages that,

1. the utility model discloses air conditioning system uses heat pipe backplate air conditioner in data computer lab, compares in traditional room level air conditioner or the air conditioner between being listed as, and the heat pipe backplate is direct to be laminated mutually with the data rack, directly carries out the heat transfer through the evaporimeter of heat pipe backplate air conditioner behind the air absorption chip heat, and the hot gas flow can not be excessive, and indoor air current organizes more stably, more is favorable to data center's operation and maintenance.

2. The utility model discloses air conditioning system utilizes the difference in height between plate heat exchanger and the heat pipe backplate at the inside heat pipe system that uses of data computer lab, and the density difference of refrigerant gas and refrigerant liquid is as system's operation pressure head, makes the system spontaneous operation under the condition of no plus power as far as possible. And meanwhile, a fluorine pump device is also arranged, so that the device installation site is limited, and the fluorine pump starts to operate when the pressure head of the refrigeration system is insufficient, thereby providing power for the system.

3. The utility model discloses air conditioning system uses mechanical refrigeration cooling water set and indirect evaporation formula cooling water set at outdoor side refrigerating system, when outdoor temperature is lower, the cold water that indirect evaporation formula cooling water set was prepared directly lets in plate heat exchanger and carries out the heat transfer with refrigerant steam, takes away the data center heat for during refrigerant steam condensation gets back to the heat pipe backplate for behind the refrigerant liquid, compare in traditional cooling tower, indirect evaporation formula cooling water set can make the play water temperature be less than local air wet bulb temperature, has higher radiating efficiency.

4. The utility model discloses air conditioning system is when outdoor temperature is higher, and mechanical refrigeration cooling water set begins to operate, and indirect evaporation formula cooling water set links to each other with mechanical refrigeration cooling water set condenser this moment, and the heat of mechanical refrigeration cooling water set condenser is taken away to the high temperature cold water of preparing for mechanical refrigeration cooling water set possesses higher energy efficiency ratio, realizes the holistic low energy consumption operation of system.

5. The utility model discloses air conditioning system's indirect evaporation formula cooling water set uses two-stage surface cooler precooling formula, and outdoor air gets into indirect evaporation formula cooling water set after the filter filters, through the high temperature cold water precooling in the one-level surface cooler earlier, later through the precooling once more of second grade surface cooler low temperature cold water for the dry ball temperature of air further reduces, accords with the requirement against the current among the heat transfer process, carries out abundant heat and humidity exchange through packing and return water again, is less than local air wet ball temperature with the assurance indirect evaporation formula cooling water set play water temperature.

6. The utility model discloses filler lower part adopts the setting of falling triangle-shaped among air conditioning system's indirect evaporation formula cooling water set, make full use of unit inner space, the contact time and the area of contact of increase air and water to guarantee the heat and moisture exchange effect, ensure lower temperature of water.

7. The utility model discloses among air conditioning system's heat pipe device, internal pressure is 10 ^-1 ～10 ^-4 Pa, the refrigerant in the heat pipe has lower evaporation pressure and evaporation temperature, so that the refrigeration cycle can be performed spontaneously under the action of the gas-liquid density difference and the gravity difference of the refrigerant.

8. The utility model discloses air conditioning system's fluorine pump drive return circuit heat pipe heat exchanger unit has the characteristics of low power consumption, high Energy Efficiency Ratio (EER), can replace traditional compressor, for heat pipe system provides suitable power and pressure head, prevents that heat pipe system power is not enough to guarantee refrigerating system's steady operation.

9. The utility model discloses the latent heat of air conditioning system evaporative cooling utilized water takes away data center's heat, and the evaporative cooling takes away the heat and is about air-cooled 60 times under the same conditions, and is energy-conserving and high-efficient.

Drawings

Fig. 1 is a schematic structural diagram of an air conditioning system of the present invention;

FIG. 2 is a schematic diagram of the air conditioning system of the present invention using natural cold source;

fig. 3 is a schematic diagram of the operation of the air conditioning system of the present invention using a mechanical refrigeration chiller;

fig. 4 is a schematic structural diagram of a data cabinet and a heat pipe backplane in the air conditioning system of the present invention;

fig. 5 is a schematic structural diagram of an indirect evaporative water chilling unit in the air conditioning system of the present invention;

fig. 6 is a schematic structural diagram of a mechanical refrigeration chiller in the air conditioning system of the present invention.

In the figure, 1, an indirect evaporative water chiller, 2, a mechanical refrigeration water chiller, 3, a three-way reversing valve, 4, a plate heat exchanger, 5, a data cabinet, 6, a heat pipe back plate, 7, a fluorine pump, 8, a refrigerant pipeline, 9, a back plate fan, 10, a primary filter, 11, a primary surface cooler, 12, a secondary surface cooler, 13, an exhaust fan, 14, a water baffle, 15, a nozzle, 16, a filler, 17, a water return pump, 18, a water feed pump, 19, an evaporator, 20, a condenser and 21, a compressor.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in figure 1, the utility model discloses a data center evaporative cooling air conditioning system based on heat pipe fluorine pump, including indirect evaporation formula cooling water set 1, mechanical refrigeration cooling water set 2, plate heat exchanger 4 and data computer lab, plate heat exchanger 4 horizontal position is higher than heat pipe backplate 6, utilizes the difference in height between plate heat exchanger 4 and heat pipe backplate 6, and the density difference of refrigerant gas and refrigerant liquid is as system operation pressure head, makes the system spontaneous operation under the condition of no external power as far as possible, packs 16 lower part and adopts the inverted triangle-shaped setting, make full use of unit inner space, increase the contact time and the area of contact of air and water, the heat and moisture exchange effect is guaranteed, the lower temperature of the outlet water is guaranteed, the latent heat of the water is utilized for evaporative cooling to take away the heat of the data center, the heat taken away by the evaporative cooling is about 60 times of that of air cooling under the same condition, and the energy-saving and efficient effects are achieved.

As shown in fig. 2, when the utility model discloses air conditioning system uses the natural cold source completely, only indirect evaporation formula cooling water set 1 passes through pipe connection plate heat exchanger 4 and fluorine pump 7, fluorine pump begins to operate when the refrigerating system pressure head is not enough, for the system provides power, fluorine pump drive loop heat pipe heat exchanger group has the characteristics of low power consumption, high Energy Efficiency Ratio (EER), can replace traditional compressor, provide suitable power and pressure head for heat pipe system, prevent that heat pipe system power is not enough, in order to guarantee refrigerating system's steady operation.

As shown in fig. 3, when the air conditioning system of the present invention uses mechanical refrigeration, the indirect evaporative water chilling unit 1 and the mechanical refrigeration water chilling unit 2 are connected to the plate heat exchanger 4 and the fluorine pump 7 through the pipeline, and the hot air flow rises and the fluorine pump 7 pressurizes to act together to return to the plate heat exchanger 4, so that the circulation is repeated.

As shown in fig. 4, the utility model discloses air conditioning system's data computer lab includes

data rack

5, and 5 leeward sides of data rack are equipped with heat pipe backplate 6, and heat pipe backplate 6 is direct to be laminated mutually with the data rack, and the air absorbs the heat of chip back direct through heat pipe backplate 6 heat transfer, and the hot gas flow can not be excessive, and indoor air current organizes more stably, more is favorable to data center's operation and maintenance, and the rigid coupling has backplate fan 9 on the

heat pipe backplate

6, and 6 inner chambers of heat pipe backplate are equipped with refrigerant pipeline 8, and the data computer lab passes through the pipeline and links to each other with plate heat exchanger 4, be equipped with fluorine pump 7 on the pipeline that the data computer lab links to each other with plate heat exchanger 4.

As shown in fig. 5, the indirect evaporation type water chilling unit 1 of the air conditioning system of the present invention comprises a housing, wherein air inlets are respectively disposed on two opposite side walls of the housing, a filler 16 is disposed in the housing, a primary filter 10, a primary surface cooler 11 and a secondary surface cooler 12 are respectively disposed between the air inlets at two ends and the filler 16, a nozzle 15, a water baffle 14 and an exhaust fan 13 are sequentially disposed above the filler 16, an air outlet is disposed on a housing wall corresponding to the exhaust fan 13, a water storage tank is disposed below the filler 16, the nozzle 15 is communicated with a unit water return pipeline through a pipeline, a water return pump 17 is disposed on a pipeline through which the nozzle 15 is communicated with the unit water return pipeline, the primary surface cooler 11, the secondary surface cooler 12 and the water storage tank are respectively provided with a water outlet and a water return port which are communicated with a condenser 20 and a plate heat exchanger 4 through a unit water supply pipeline and a unit water return pipeline, compared with a conventional cooling tower, the indirect evaporative water chilling unit 1 can enable the temperature of outlet water to be lower than the local air wet bulb temperature, and has higher heat dissipation efficiency.

As shown in fig. 6, the utility model discloses air conditioning system's mechanical refrigeration cooling water set 2 is including connecting gradually the evaporimeter 19 that constitutes closed loop, condenser 20, compressor 21, condenser 20 passes through the indirect evaporative cooling water set 1 of pipeline intercommunication, evaporimeter 19 passes through pipe connection plate heat exchanger 4, indirect evaporative cooling water set 1 links to each other with condenser 20 in the mechanical refrigeration cooling water set 2, the heat of condenser 20 in the mechanical refrigeration cooling water set 2 is taken away to the high temperature cold water of making, make mechanical refrigeration cooling water set 2 possess higher energy efficiency ratio, realize the holistic low energy consumption operation of system.

The working principle of the utility model is as follows:

the outside air is filtered by a primary filter 10 to enter the inside of the unit under the action of a unit exhaust fan 13, the air firstly passes through a primary surface air cooler 11, the primary surface air cooler 11 is introduced with high-temperature cold water which circulates and then returns to the unit under the action of a water return pump 17, the air is subjected to primary equal-humidity cooling, then passes through a secondary surface air cooler 12, the cold water prepared by an indirect evaporative water chilling unit 1 is introduced into the secondary surface air cooler 12, the air is subjected to secondary equal-humidity cooling, the dry bulb temperature of the air is further reduced, the requirement of reverse flow in the heat transfer process is met, the air which is subjected to the two-stage equal-humidity cooling passes through a filler 16, a nozzle 15 in the filler 16 continuously sprays the filler 16, the air and the water are subjected to sufficient heat and humidity exchange to ensure that the outlet water temperature of the indirect evaporative water chilling unit 1 is lower than the local wet bulb temperature of the air, the water absorbs the heat in the air to be evaporated and returns to the air in the form of water vapor, the air changes into an isenthalpic cooling process and is then discharged to the outside under the action of the fan 13. The water temperature of cold water prepared by the indirect evaporation type water chilling unit 1 is reduced to be lower than the local air wet bulb temperature, and water is supplied to the outside through a water supply pump 18.

The direction of the indoor side refrigerant is shown in figure 1, the refrigerant in the heat pipe back plate 6 absorbs heat in air, the gasified hot air flow rises to the plate type heat exchanger 4, the refrigerant steam after being fully subjected to heat exchange and temperature reduction through the plate type heat exchanger 4 is condensed into refrigerant liquid, the refrigerant steam returns to the heat pipe back plate 6 through a liquid pipe section under the combined action of the height difference between the indoor side and the outdoor side, the density difference between the refrigerant steam and the refrigerant liquid and the pressurization of the fluorine pump 7, the heat carried by the air in the cabinet is then gasified into the refrigerant steam, and the refrigerant steam returns to the plate type heat exchanger 4 under the combined action of the rising principle of hot air flow and the pressurization of the fluorine pump 7, so that the cycle is repeated.

When the outdoor air temperature is low, namely the natural cold source can meet the heat dissipation requirement of the data center, high-temperature return water returns to the indirect evaporative water chilling unit 1 under the action of the water return pump 17, the water temperature is reduced to be lower than the temperature of a local air wet bulb after the high-temperature return water and air are subjected to full heat and humidity exchange, the high-temperature return water is conveyed to the plate heat exchanger 4 under the action of the water supply pump 18, the heat of refrigerant steam is absorbed, and then the high-temperature return water returns to the unit for heat dissipation.

When the outdoor temperature is high, the complete natural cooling cannot meet the heat dissipation requirement of the data center, the indirect evaporative water chilling unit 1 is connected with the condenser 20 in the mechanical refrigeration water chilling unit 2, the cold water prepared by the indirect evaporative water chilling unit 1 is used for taking away the heat of the condenser 20 in the mechanical refrigeration water chilling unit 2, and the low-temperature cold water prepared by the evaporator 19 in the mechanical refrigeration water chilling unit 2 is introduced into the plate heat exchanger 4 to exchange heat with the refrigerant steam to take away the heat of the data center.

The utility model discloses air conditioning unit utilizes fluorine pump + heat pipe + evaporative cooling technique to combine together, reforms transform and newly-built data center to current data center provides a more efficient radiating mode, improves data center thermal environment, reduces data center PUE.

Claims

1. The data center evaporative cooling air conditioning system based on the heat pipe fluorine pump is characterized by comprising an indirect evaporative water chilling unit (1), wherein the indirect evaporative water chilling unit (1) is respectively connected with a mechanical refrigeration water chilling unit (2) and a plate type heat exchanger (4), the mechanical refrigeration water chilling unit (2) is connected with the plate type heat exchanger (4), a fluorine pump (7) is arranged in a data machine room, a heat pipe back plate (6) is attached to the leeward side of a data machine cabinet (5), a refrigerant pipeline (8) is arranged inside the heat pipe back plate (6), and the refrigerant pipeline (8), the fluorine pump (7) and the plate type heat exchanger (4) are sequentially connected to form a closed loop.

2. A heat pipe fluorine pump based data center evaporative cooling air conditioning system as claimed in claim 1, wherein the plate heat exchanger (4) is horizontal higher than the heat pipe back plate (6).

3. The data center evaporative cooling air conditioning system based on the heat pipe fluorine pump as claimed in claim 1 or 2, wherein the indirect evaporative water chilling unit (1), the mechanical refrigeration water chilling unit (2) and the plate heat exchanger (4) are respectively provided with a three-way reversing valve (3).

4. The data center evaporative cooling air conditioning system based on the heat pipe fluorine pump as claimed in claim 1, wherein a backplane fan (9) is fixedly connected to the heat pipe backplane (6).

5. The data center evaporative cooling air conditioning system based on the heat pipe fluorine pump is characterized in that the indirect evaporation type water chilling unit (1) comprises a shell, air inlets are respectively arranged on two opposite side walls of the shell, a filler (16) is arranged in the shell, a primary filter (10), a primary surface cooler (11) and a secondary surface cooler (12) are respectively arranged between the air inlets at the two ends and the filler (16), a nozzle (15), a water baffle plate (14) and an exhaust fan (13) are sequentially arranged above the filler (16), an air outlet is arranged on a shell wall corresponding to the exhaust fan (13), a water storage tank is arranged below the filler (16), the nozzle (15) is communicated with a unit water return pipeline through a pipeline, and a water return pump (17) is arranged on a pipeline of the nozzle (15) communicated with the unit water return pipeline, the first-stage surface air cooler (11), the second-stage surface air cooler (12) and the water storage tank are respectively provided with a water outlet and a water return port which are communicated with the condenser (20) and the plate heat exchanger (4) through a unit water supply pipeline and a unit water return pipeline.

6. The heat pipe fluorine pump based data center evaporative cooling air conditioning system as recited in claim 5, wherein the lower portion of the filler (16) is arranged in an inverted triangle.

7. The data center evaporative cooling air conditioning system based on the heat pipe fluorine pump is characterized in that the mechanical refrigeration water chilling unit (2) comprises an evaporator (19), a condenser (20) and a compressor (21) which are connected in sequence to form a closed loop, the condenser (20) is communicated with the indirect evaporative water chilling unit (1), and the evaporator (19) is communicated with the plate type heat exchanger (4).