KR101579883B1 - Constant temperature and humidity data center system using heat exchanger - Google Patents

Abstract

A plurality of racks mounted on the data server and the database, a plurality of racks disposed on the racks for collecting and discharging the racks from the rack, A heat exchanger disposed at one side of the computer room for exchanging heat with the outside air drawn in from the outside through the inside of the computer room discharged through the upper flow path and then exchanging the cooled inside air to the computer room indirectly, And a lower flow path connected to the thermo-hygrostat chamber and connected to the thermo-hygrostat chamber and discharging the cooled inside air in the thermo-hygrostat chamber from the lower side to the upper side of the thermo-hygrostat chamber, and indirectly exchanges the inside air and the outside air with each other indirectly through a heat exchanger , There is no fear of cross-contamination, and the interior of the data center is kept at constant temperature and humidity throughout the year with less energy. The present invention provides a data center constant temperature and humidity system using a heat exchanger capable of improving energy efficiency by utilizing the latent heat of evaporation of water and reducing operating costs.

Description

[0001] The present invention relates to a data center constant temperature and humidity system using a heat exchanger,

The present invention provides a data server and a rack in which a database is mounted, indirectly exchanges heat between the inside of the computer room having a work space with which the operator can work, and then supplies the heat to the computer room, The present invention relates to a data center constant temperature and humidity system using a heat exchanger for maintaining constant temperature and humidity.

Typically, data centers lease computing and networking facilities to businesses and individuals, and provide services such as maintenance and maintenance by attracting customers' facilities. These data centers usually include data servers and databases, including communication devices. A plurality of racks are installed in a row and include a work space where workers can work.

On the other hand, since the apparatus including the above-described server rack is not smoothly operated at high temperature and heat is generated during operation, the data center needs a cooling device for cooling the same. Furthermore, in the case of electronic components and circuits, there is a risk of short circuit if there is a large amount of moisture in the data center, and a problem of fire or electronic parts damage due to static electricity, sparks, and the like when moisture is too small.

Therefore, in the data center, an air conditioner for cooling and constant temperature and humidity is installed. Examples of such technologies include Korean Patent Registration Nos. 10-0478755, 10-1103394, 10-2010-0013312, The technology for various air conditioners installed in the air conditioner has been disclosed.

However, in the conventional technology, the outside air is drawn into the data center so as to maintain the constant temperature and humidity, and the outside air is cooled or heated to a specified temperature, or the outside air and the inside air are directly heat exchanged with each other, To cool and circulate.

However, in the above-described conventional technique, a great amount of energy is consumed to cool the outside air and the inside air, and the method of directly cooling the data center by introducing the outside air directly causes fine dust, Toxic gas, and salty particles.

The present invention eliminates the risk of cross-contamination by indirectly exchanging heat between the indoor and the outdoor using a heat exchanger, and can maintain the indoor temperature of the data center at constant temperature and humidity throughout the year with less energy. And it can provide a data center constant temperature and humidity system using a heat exchanger that can reduce the operating cost because it can efficiently operate in correspondence with each season of the winter season, the summer season and the summer season.

The data center constant temperature and humidity system using the heat exchanger according to the present invention is arranged in an upper part of the computer room and includes a data server and a database, (Heat exchanged outdoor air) which is indirectly heat-exchanged with the indoor air in the heat exchanger after exchanging heat with the outside air drawn in from the outside by the indoor unit of the computer room which is discharged through the upper flow path, A thermo-hygrostat chamber for discharging the refrigerant to the outside and for supplying the cooled air supply (heat-exchanged inside air) to the computer room by indirect heat exchange with the outside air in the heat exchanger, and a thermo-hygrostat chamber connected to the thermo-hygrostat chamber, And a lower flow path for discharging the cooled heat exchanged from the lower side to the upper side of the computer room.

At this time, one side of the upper flow path according to the present invention includes an exhaust vent damper which compares the air condition of the room and adjusts the indoor air to discharge the required air amount.

In the thermo-hygrostat chamber according to the present invention, a first flow passage connected to the upper flow path for guiding the inner air discharged from the upper flow path to the heat exchanger, and a second flow path connected to the outside and the heat exchanger for guiding the outside air to the heat exchanger A third flow passage connected to the outside and the heat exchanger for guiding the exhaust (heat-exchanged outside air) that has undergone heat exchange with the inside air in the heat exchanger to the outside, and a second flow passage connected to the heat exchanger and the lower flow path, And a fourth flow passage for guiding the cooled supply air (heat-exchanged internal air) to the lower flow path by heat exchange with the outside air in the first air flow passage.

Further, the heat exchanger according to the present invention may include a first filter for filtering fine dust in the exhaust gas guided by the first flow passage.

In addition, the second flow passage according to the present invention is characterized in that the second flow passage includes a second filter for filtering fine dust and salt particles in the outside air drawn from outside, and a second filter disposed behind the second filter for filtering and removing fine dust and salt- And a mist spray nozzle for spraying the mist to the outside air.

The third flow passage according to the present invention may include an exhaust air blowing unit for blowing exhaust gas (heat-exchanged outdoor air) that has undergone heat exchange with the indoor air in the heat exchanger to the outside.

Further, the fourth flow passage according to the present invention is provided with an auxiliary cooling coil for cooling the supply air (heat-exchanged internal air) selectively according to the temperature of the outside, receiving the cooled air supply (heat-exchanged internal air) An air supply blowing unit disposed at the rear of the auxiliary cooling coil unit for blowing air (heat exchanged inside air) having undergone heat exchange with the outside air in the heat exchanger to the lower flow path, An auxiliary humidifier disposed between the first flow path and the second flow path and selectively humidifying air supply (heat-exchanged internal air) that has undergone heat exchange with the outside air in the heat exchanger; And an air supply intake damper for regulating the amount of air in the indoor space.

In addition, the heat exchanger according to the present invention stacks the indoor air flow passage through which the indoor air flows and the outdoor air flow passage through which the outdoor air flows, so that the indoor air and the outdoor air flow in a cross flow and heat exchange with each other.

The heat exchanger according to the present invention comprises diaphragms laminated to each other at a predetermined interval in a plate form and a corrugated shape and disposed between the diaphragms stacked on each other and the upper and lower ends of the corrugated plates are joined to the diaphragm, And a first member and a corrugated member that receive the heat of the outside air as the outside air passes through the passage and are disposed so as to intersect the longitudinal direction of the first member between the stacked diaphragms, And a second member joined to the diaphragm such that an upper limit portion and a lower limit portion of the corrugation are connected to the diaphragm to provide a passage through which the vaporel passes and to receive heat of the vapors as the vapor passes through the passage, The joint surfaces of the diaphragms to which the upper and lower portions of the diaphragm are joined are made of the same material as the first and second members.

The data center constant temperature and humidity system using the heat exchanger according to the present invention has the following effects.

First, there is no fear of cross-contamination by indirectly exchanging heat between the inside and outside of the room with the heat exchanger, and the room of the data center can be maintained at constant temperature and humidity throughout the year with less energy.

Secondly, the heat exchange between the outside air and the inside air is effectively performed, and energy efficiency can be improved by using the latent heat of evaporation of water, so that the energy used can be reduced.

Third, since it is possible to efficiently operate in correspondence with each season of the winter season, the summer season, and the summer season, it is possible to reduce the operating cost, and the economic benefit is obtained.

1 is a view showing an example of a data center constant temperature and humidity system using a heat exchanger according to the present invention.
FIG. 2 is an exemplary view showing a heat exchanger according to the present invention. FIG.
3 is an exemplary diagram showing a control unit according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately The present invention should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, at the time of the present application, It should be understood that variations can be made.

A plurality of server racks each equipped with a communication device are installed in a row to indirectly heat the inside of the computer room having a work space in which the operator can work and indirectly heat the inside of the computer room with constant temperature and humidity The present invention relates to a data center constant temperature and humidity system using a heat exchanger that maintains the temperature of the data center at a predetermined temperature.

Referring to FIG. 1, an upper flow path 110 is disposed on an upper portion of a computer room 100 that accommodates a plurality of racks on which a data server and a database are mounted, Collected from the upper side of the computer room 100 and discharged.

At this time, an air discharge damper 111 is provided on one side of the upper flow path 110. The air discharge damper 111 adjusts the opening amount so as to control the discharge of the indoor air, .

The thermo-hygrostat chamber 200 is disposed at one side of the computer room 100 to receive the inside air of the computer room 100 discharged through the upper channel 110 and the outside air drawn in from the outside and the heat exchanger 300 After the heat exchange, the supply air (heat exchanged internal air) cooled indirectly by the heat exchange is supplied to the computer room 100 again.

A lower flow path 120 is disposed under the computer room 100 and connected to the thermostatic and hygroscopic room 200. The thermostat exchanges heat exchanged air in the thermostatic and hygroscopic room 200 with the computer 100 To the upper side.

Therefore, in the data center constant temperature and humidity system using the heat exchanger according to the present invention, the preheated internal air due to the data server and databases in the computer room 100 is collected into the upper flow path 110 disposed on the upper side of the computer room 100, The indoor heat exchanger 300 exchanges heat with outdoor air drawn in from the outside to the heat exchanger 300 to cool the indoor air to a predetermined temperature, To the computer room 100 so that the supply air (heat exchanged air) of the computer room 100 is kept at constant temperature and humidity throughout the year without influx of outside air.

The first and second flow passages 210 and 220 and the third flow passages 230 and 230 are formed in the thermostatic and hygroscopic chamber 200. The first and second flow passages 210 and 220, A fourth flow passage 240, and a heat exchanger 300 in which the inside air and the outside air indirectly exchange heat with each other.

First, the first flow passage 210 is connected to the upper flow path 110 to guide the inner air discharged from the upper flow path 110 to the heat exchanger 300.

At this time, one end of the first flow passage 210 is connected to an upper flow path 110 having an exhaust vent damper 111 for controlling the discharge amount of the indoor air according to the amount of opening, and one end and the other opposite end are connected to the heat exchange Is connected to the air inlet portion of the air conditioner (300).

The first filter 310 is installed in the air inlet portion of the heat exchanger 300 to filter fine dust contained in the air and the circulation flow of the indoor air is generated by driving the air supply unit 242, And the air is introduced into the guide path heat exchanger 300 of the first flow passage 210.

The second flow passage (220) is connected to the outside and the heat exchanger (300), and guides the outside air to the heat exchanger (300).

Here, the second flow passage 220 is provided with a first louver 221 at one side adjacent to the outside to adjust the amount of opening of the first louver 221, or to control the opening amount of the outside air through the exhaust air blowing unit 232 .

At this time, a flow of the outside air is generated by driving the exhaust air blowing unit 232.

A second filter 222 is disposed behind the first louver 221 provided in the second flow passage 220 so that fine dust, And the like.

Accordingly, the second filter 222 filters fine dust, noxious gas, and salt-containing particles in the outside air drawn from the outside through the first louver 221, and the fine dust, noxious gas, Can be prevented.

In addition, a mist spray nozzle 223 is disposed behind the second filter 222, and the mist is sprayed to the outside air in which the fine dust and the salt water are filtered by the second filter 222.

At this time, latent heat of evaporation acts on the outside air by the sprayed mist, so that the outside air is cooled, and more heat exchange is performed with the inside air in the heat exchanger 300.

The third flow passage 230 is connected to the outside and the heat exchanger 300 so that the exhaust gas (heat exchanged outdoor air) that has undergone heat exchange with the indoor air in the heat exchanger 300 is discharged to the outside.

An exhaust air blowing unit 232 is disposed in the third flow passage 230 and exhausted from the heat exchanger 300 in accordance with the driving of the exhaust air blowing unit 232 And the second louvers 231 can be smoothly discharged to the outside.

The fourth flow passage 240 is connected to the heat exchanger 300 and the lower flow passage 120 to exchange the cooled air supply heat exchanged with the ambient air in the heat exchanger 300 into the lower flow passage 120 ).

At this time, the fourth flow passage 240 receives the cooled supply air (heat-exchanged internal air) by heat exchange with the outside air in the heat exchanger 300, and selectively supplies the heat (heat exchanged internal air) according to the temperature of the supply air An auxiliary humidifier 244 and an air supply blowing unit 242 are disposed in the rear of the auxiliary cooling coil unit 241 so as to be connected to the outside air in the heat exchanger 300 After the heat exchanged air (heat exchanged internal air) is selectively cooled and humidified, the air is blown to the lower flow path 120.

An air supply intake damper 243 is disposed at the boundary between the fourth flow passage 240 and the lower flow passage 120 to adjust the amount of opening of the air supply intake damper 243, (Heat exchanged inside air).

The heat exchanger 300 stacks the inside air passage through which the inside air flows and the outside air passage through which the outside air flows so that the inside air and the outside air flow in a cross flow and heat exchange is performed between the outside air and the inside air Respectively.

2, the heat exchanger 300 includes a diaphragm 301 for exchanging heat between the outside air and the inside air indirectly, and a flow path for the outside air And a second member 302 for providing a flow passage of the inner air. The diaphragm 301 is formed of at least two or more plates on a plate, and a plurality of diaphragms (not shown) 301 are stacked at regular intervals from each other.

At this time, the first member 302 and the second member 303 are alternately disposed between the partition plates 301 stacked on each other to provide a flow path for the outside air and the inside air.

The first member 302 and the second member 303 are corrugated in such a manner that the upper and lower ends thereof are joined to the partition 301 so that the outside air flow passage through which the outside air passes through the passage formed by the corrugation, To form a through-air flow passage.

At this time, the first member 302 and the second member 303 are arranged so as to cross each other so as to form a '+' shape in the longitudinal direction, and the inner and outer air show a cross flow, The heat of the outside air and the inside air is conducted to the diaphragm 301 so that the outside air and the inside air exchange heat with each other through the diaphragm 301. [

The joining surfaces of the partition plates 301 to which the upper and lower ends of the first member 302 and the second member 303 are joined are preferably made of the same material so that the joining force between them is doubled.

At this time, when the first and second members 302 and 303 are made of paper, the diaphragm 301 may be made of paper or may be formed by bonding paper to the surface of the base sheet of the synthetic resin material , And the diaphragm (301) is preferably made of a member capable of inducing evaporation of water.

In an embodiment of the present invention, as shown in FIGS. 1 and 2, a pair of heat exchangers 300 divided into a first heat exchanger 300 and a second heat exchanger 300 are arranged in a horizontal arrangement, The outside air is passed through the first heat exchanger 300 and then returned to the outdoor heat exchanger fluid path 320 again according to the guidance of the outside air heat exchanger fluid path 320. [ U "shaped flow to be discharged to the outside after passing through the second heat exchanger 300, and the air flows through the first heat exchanger 300 immediately after passing through the second heat exchanger 300 And the heat transfer efficiency is improved by flowing in the horizontal flow.

Therefore, the indoor air according to the present invention is indirectly exchanged with the outside air through the heat exchanger in the computer room, and then recycled back to the computer room, so that the computer room is kept at constant temperature and humidity.

The data center constant temperature and humidity system using the heat exchanger according to the present invention performs different control according to the state (temperature and humidity) of the outside air and the state (temperature and humidity) of the inside air and the air supply (heat exchanged air) (Temperature and humidity) of the air supply (heat exchanged air) air, the control unit 10 includes an outdoor temperature and humidity sensor (not shown) installed outdoors as shown in FIG. 3, Temperature humidity sensor 30 which is installed inside the computer room and the supply air temperature and humidity sensor 40 which is installed around the heat exchanger so that the outside air temperature and humidity sensor 20, The mist emitting nozzles 223, the exhaust blowing units 232, the auxiliary cooling coils 223, and the auxiliary cooling coils 223, Unit 241, an air supply blowing unit 242, an auxiliary humidifier 244, It controls the supply air inlet damper (243).

For example, the temperature and humidity of the supply air are measured by the supply / air temperature / humidity sensor 40, and the temperature and humidity of the supply air are provided to the control unit 10, and the ambient temperature and humidity entering the ambient temperature and humidity sensor 20 are measured And supplies the measured temperature and humidity to the control unit 10. The indoor temperature and humidity of the indoor room are measured by the indoor temperature and humidity sensor 30 and provided to the control unit 10.

The control unit 10 divides the control based on the temperature and humidity measurement values of the air supply (heat exchanged inside air), the temperature and humidity measurement values of the outside air and the inside air, and outputs the air discharge damper 111 and the mist spray nozzle 223, an exhaust air blowing unit 232, an auxiliary cooling coil unit 241, an air supply blowing unit 242, an auxiliary humidifier 244 and an air supply intake damper 243.

Taking the control as an example,

3, the control in which the state (temperature, humidity ) of the outside air is measured to be equal to or less than the set value controls the opening amount of the air discharge damper 111 and the air supply inlet damper 243 by the control unit 10.

The control unit 10 controls the driving and blowing amount of the air supply blowing unit 242 and controls the driving and blowing amount of the air blowing unit 232.

At this time, the control unit 10 controls the amount of air blown to the exhaust blowing unit 232 according to the measured state (temperature, humidity) of the outside air, and controls the amount of air blown by the exhaust air blowing unit 232 (Temperature and humidity) of the supply air (heat exchanged internal air) to be re-supplied to the computer room after the heat exchange with the outside air in the heat exchanger 300 is controlled.

This is mainly done during the winter season, when the temperature is higher than the outside temperature.

When the humidity of the measured supply air (heat exchanged air) is lower than the set value, the auxiliary air humidifier may be driven to humidify the air supply (heat exchanged air) supplied to the computer room.

3, the state (temperature, humidity) of the outside air is measured at a set value, or the control measured by the approximate value indicates that the control unit 10 adjusts the opening amount of the air discharge damper 111, air supply inlet damper 243 .

The control unit 10 controls the driving and blowing amount of the air supply blowing unit 242 and controls the driving and blowing amount of the air blowing unit 232.

At this time, the control unit 10 controls the air blowing amount to the exhaust blowing unit 232 according to the measured state (temperature, humidity), and when the state (temperature, humidity) (Heat exchanged outside air) according to the blowing amount control of the exhaust blowing unit 232 and the evaporation latent heat of the mist to be applied to the outside air control the driving of the mist blowing nozzle 223, (Temperature and humidity) of the supply air (heat-exchanged internal air) to be re-supplied to the computer room after heat exchange with the outside air in the air conditioner 300.

This is mainly due to the low temperature difference between the inner and outer air.

When the humidity of the measured supply air (the heat-exchanged inside air) is lower than the set value, the auxiliary humidifier 244 may be driven to humidify the supply air (heat exchanged internal air) supplied to the computer room.

3, the control in which the state of the outside air (temperature, humidity) is measured to be equal to or higher than the set value controls the opening amount of the air discharge damper 111 and the air supply inlet damper 243 by the control unit 10 .

The control unit 10 controls the driving and blowing amount of the air supply blowing unit 242 and controls the driving and blowing amount of the air blowing unit 232.

At this time, the control unit 10 controls the blowing amount to the exhaust blowing unit 232 according to the measured temperature, and when the temperature of the outside air measured is equal to or higher than the set value, the control unit 10 controls the blowing- And controls the driving.

When the state (temperature, humidity) of the measured supply air (temperature-exchanged air) is equal to or higher than the set value, the control unit controls the drive to the auxiliary cooling coil unit 241 to perform heat exchange with the outside air in the heat exchanger 300, (Heat exchanged internal air) is cooled once more so that the supply air (heat exchanged internal air) to be re-supplied to the computer room is set to the designated state (temperature, humidity).

Therefore, the control of the state of the outside air (temperature, humidity) measured above the set value is controlled by the discharge amount of the outside air according to the blowing amount control of the exhaust blowing unit 232 and the evaporation latent heat of the mist due to the driving of the mist spraying nozzle 223, And the temperature of the supply air (heat exchanged inside air) supplied to the computer room after the heat exchange with the outside air in the heat exchanger 300 is cooled by the cooling of the inside air due to the driving of the auxiliary cooling coil unit 241.

This is mainly done during the summer season when the outside air is measured in a higher state (temperature, humidity) than the ventilation.

When the humidity of the measured supply air (heat exchanged air) is lower than the set value, the auxiliary air humidifier may be driven to humidify the air supply (heat exchanged air) supplied to the computer room.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100: computer room 110: upper flow path
111: Air discharge damper 120:
200: constant temperature and humidity chamber 210: first flow passage
220: second flow passage 221: first louver
222: second filter 223: mist spray nozzle
230: third flow passage 231: second louver
232: exhaust blowing unit 240: fourth flow passage
241: auxiliary cooling coil unit 242: supply air blowing unit
243: air supply intake damper 244: auxiliary humidifier
300: heat exchanger 310: first filter
320: Outside heat exchanger base oil pathway

Claims (9)

An upper flow path disposed at an upper portion of the computer room and collecting and discharging the upper end of the computer room heated by a load discharged from a rack mounted with the data server and the database; (Heat exchanged outdoor air) indirectly heat-exchanged with the indoor air in the heat exchanger is discharged to the outside, and the outdoor air is discharged from the heat exchanger A thermo-hygrostat chamber for indirectly exchanging heat and supplying the cooled supply air (heat-exchanged air) to the computer room, and a thermo-hygrostat chamber connected to the thermo-hygrostat chamber and located in the lower portion of the thermo-hygrostat chamber, And a lower flow path for discharging the fluid,
A first flow passage connected to the upper flow path and guiding the inner air discharged from the upper flow path to a heat exchanger, a second flow passage connected to the outside and the heat exchanger for guiding the outside air to the heat exchanger, A third flow passage connected to the outside and the heat exchanger for guiding the exhaust (heat exchanged outside air) that has undergone heat exchange with the indoor air in the heat exchanger to the outside, and a third flow passage connected to the heat exchanger and the lower flow path, And a fourth flow passage for guiding the heat exchanged and cooled supply air (heat-exchanged internal air) to the lower flow path,
The fourth flow passage
An auxiliary cooling coil unit for cooling and dehumidifying the supply air (heat exchanged internal air) selectively according to the temperature and humidity of the external air supply, receiving the cooled air supply (heat exchanged internal) by heat exchange with the ambient air in the heat exchanger;
An air supply blowing unit disposed at the rear of the auxiliary cooling coil unit for blowing air (heat exchanged inside air) having undergone heat exchange with the outside air in the heat exchanger to the lower flow path;
An auxiliary humidifier disposed between the auxiliary cooling coil unit and the air supply blowing unit and selectively humidifying air supply (heat-exchanged inside air) that has undergone heat exchange with the outside air in the heat exchanger according to air supply humidity;
And a supply inlet damper disposed at the fourth flow passage and the lower flow passage boundary to adjust the amount of air supplied to the lower flow passage (heat exchanged inside air).
The method according to claim 1,
On one side of the upper flow path
And an exhaust vent damper that compares the air condition of the indoor air and discharges the indoor air to a required amount of air.
delete The method according to claim 1,
The heat exchanger
And a first filter for filtering particulate matter in the exhaust guided by the first flow passage.
The method according to claim 1,
The second flow passage
A second filter for filtering fine dust and salt particles from outside air introduced from the outside; And
And a mist spray nozzle disposed behind the second filter and spraying mist to the outside air filtered by the fine dust and the salt-containing particles in the second filter.
The method according to claim 1,
The third flow passage
And an exhaust air blowing unit for blowing exhaust (heat-exchanged outside air) that has undergone warm-up and heat-exchange in the heat exchanger to the outside.
delete The method according to claim 1,
The heat exchanger
Wherein the indoor air flow passage through which the indoor air flows and the outdoor air flow passage through which the outdoor air flows are alternately stacked so that the indoor air and the outdoor air flow in a cross flow and heat exchange with each other.
The method of claim 8,
The heat exchanger
Diaphragms stacked on the plate at regular intervals;
The upper and lower portions of the corrugated sheet being joined to the diaphragm to provide a passage through which the outside air passes, 1 member; And
And the upper and lower limits of the corrugation are joined to the diaphragm to provide a passage through which the vapors pass, And a second member that receives heat of the inside air as it passes through the second member,
Wherein the joint surfaces of the diaphragms to which the upper and lower portions of the first member and the second member are joined are made of the same material as the first member and the second member.

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