CN105716167A - Rotating wheel type total-heat-recovery fresh air unit - Google Patents

Rotating wheel type total-heat-recovery fresh air unit Download PDF

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Publication number
CN105716167A
CN105716167A CN201410704486.7A CN201410704486A CN105716167A CN 105716167 A CN105716167 A CN 105716167A CN 201410704486 A CN201410704486 A CN 201410704486A CN 105716167 A CN105716167 A CN 105716167A
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China
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heat
air
cavity
chamber
heat exchanger
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CN201410704486.7A
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Chinese (zh)
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严卫东
徐立新
朱颖
刘保彬
徐祎晨
王时静
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/56Heat recovery units

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Abstract

The invention relates to the technical field of total heat recovery, in particular to a rotating wheel type total-heat-recovery fresh air unit which comprises a unit shell. The unit shell is provided with a fresh air inlet cavity, a recovery cavity, an air supply cavity, an air return cavity and an exhaust cavity. A primary filter and a medium-efficiency filter are sequentially arranged in the fresh air inlet cavity from outside to inside. An energy recovery rotating wheel is arranged in the recovery cavity. A second heat exchanger, a condensation heat recoverer, a humidifier and a blower are sequentially arranged in the air supply cavity from inside to outside. A compressor and a four-way reversing valve are sequentially arranged in the air return cavity from outside to inside. A first heat exchanger and an exhaust fan are arranged in the exhaust cavity. The rotating wheel type total-heat-recovery fresh air unit has the beneficial effects that fresh air and exhausted air are subjected to total heat recovery firstly through a rotating wheel heat recovery device, then an evaporator of a heat pump system is used for cooling and dehumidifying the fresh air, a condenser of the heat pump system is then used for carrying out proper heating treatment, and therefore the risk of moisture condensation caused by the too low air outlet temperature is avoided. In addition, the structure is simple, design is reasonable, and manufacturing cost is low.

Description

Rotary-type total heat recovery type Fresh air handing unit
Technical field
The present invention relates to total heat recovery technical field, particularly to rotary-type total heat recovery type Fresh air handing unit.
Background technology
Along with popularizing of China's Civil Air Conditioning System, people be not satisfied with common temperature requirement, and the humidity of air, air quality are had higher requirement.In the existing relevant design of HVAC specification of China, the value of resh air requirement is designed by minimum fresh air requirmente, secondly in the air current composition of air conditioning system, new return air mixed ventilation pattern is often adopted, these directly result in indoor pollutant and can not effectively discharge, and affect the air quality of air-conditioned room.Facts have proved strengthen resh air requirement can the effective harmful substance in dilution chamber, improve room air oxygen content, hence it is evident that raising indoor air quality, but the increase of resh air requirement make Fresh air handing energy consumption be greatly increased.Proposing in China's " public building energy design standard ", design outdoor air ventilation rate is not less than 4000m3The air handling system of/h, and newly wind and the air draft temperature difference are not less than 8 DEG C of appropriate to the occasion energy recycle devices that arrange, the specified heat recovery efficiency of heat recovery equipment of extract air should be not less than 60%." standard for design of air conditioning and energy conservation in tourism hotel buildings " is expressly provided, all set up the building putting independent new displacing air system separately in housekeeping department, should selecting full heat or heat recovering device, its specified heat recovery efficiency should be not less than 60%, and this unit energy improves energy recovery efficiency about 80%.
In existing design of air conditioning, Fresh air handing generally has two ways, one, adopt gas-gas energy heat regenerator, such as rotary type total heat exchanger, silent oscillation heat-exchangers of the plate type, heat exchange of heat pipe, coiled and atomizing heat exchanger, new wind and air draft are direct to indoor air-supply after carrying out full thermal energy recovery;Its two, new wind adopt summer chilled water or direct evaporation cooling humidity reduction process backward room air-supply, adopt hot-water coil pipe or electric heater winter.The problem that this air conditioner fresh air mode exists the following aspects:
The first, new wind heat is directly blown to room after reclaiming, and room conditioning load increases, and causes room epidemic disaster fluctuation, affects the comfortableness of room rate.
The second, new wind is after surface cooler or direct evaporator cooling humidity reduction process, it is possible to cause that wind pushing temperature is too low, causes indoor condensation, affects indoor air quality.
3rd, electrical heating in winter Fresh air handing observable index is higher, and indoor humidity controls weak effect.
Rotary-type total heat recovery type Fresh air handing unit exactly unites two into one recuperation of heat and Fresh air handing, it is desirable to provide a kind of simple and reasonable, rotary wheel type total heat recovery fresh unit that energy consumption is low, to overcome weak point of the prior art.
Summary of the invention
Present invention aims to the defect of prior art and deficiency, it is provided that a kind of simple in construction, rotary-type total heat recovery type Fresh air handing unit reasonable in design, easy to use.
For achieving the above object, the technical solution used in the present invention is:
Rotary-type total heat recovery type Fresh air handing unit of the present invention, including machine unit shell, described machine unit shell is provided with new wind and enters chamber, recycling cavity, wind pushing cavity, return air chamber and air draft chamber, described new wind enters one end, chamber and is provided with fresh wind port, described wind pushing cavity one end is provided with air outlet, one end, described return air chamber is provided with return air inlet, and one end, described air draft chamber is provided with exhaust outlet;The entrance of described new wind chamber, wind pushing cavity, return air chamber are all connected with recycling cavity with the other end in air draft chamber and communicate;Described new wind enters chamber by being disposed with roughing efficiency air filter, medium effeciency filter inward outward;Described recycling cavity is provided with energy regenerating runner;Described wind pushing cavity is disposed with the second heat exchanger, condensation heat recoverer, humidifier and pressure fan outward by inner;Described return air chamber is by being disposed with compressor and four-way change-over valve inward outward;Described air draft chamber is disposed with First Heat Exchanger and exhaust blower outward by inner;First port of described four-way change-over valve is connected with compressor one end and communicates, second port of described four-way change-over valve is connected with First Heat Exchanger one end and communicates, 3rd port of described four-way change-over valve is connected with the compressor other end and communicates, and the 4th port and second heat exchanger one end of described four-way change-over valve communicate;The described First Heat Exchanger other end is connected to the first electromagnetic valve and the second electromagnetic valve by pipeline, and the second heat exchanger other end is connected with condensation heat recoverer one end by secondary pipeline and communicates;The described first electromagnetic valve other end is connected with the middle of secondary pipeline by pipeline and communicates;The described second electromagnetic valve other end is connected with the condensation heat recoverer other end by pipeline and communicates.
Further, described secondary pipeline is provided with heating power expansion valve, and this heating power expansion valve is arranged between the second heat exchanger other end and secondary pipeline and pipeline junction.
After adopting said structure, present invention have the beneficial effect that
The first, energy recuperation of heat and Fresh air handing integral structure;Energy recovery efficiency is about 80%.
The second, in Fresh air handing in summer process, utilize condensation heat to heat new wind, overcome the problem that wind pushing temperature is too low, compared with traditional electrical heating hot mode again, reduce energy resource consumption;Utilize summer air draft as the heat dissipation ventilation of the condenser of heat pump, effectively reduce the condensation temperature of heat pump, improve the efficiency of refrigeration system.
3rd, temperature of outgoing air in winter is as the ventilation of the vaporizer of heat pump, improves the evaporating temperature of vaporizer, improves the refrigerating efficiency of unit.
4th, the present invention adopts runner total heat recovery technology to combine with heat pump techniques and processes the humiture of air conditioner fresh air, and the design of integration solves Small Civil air and processes and existing problems in recuperation of heat, is particularly suitable for the air conditioning system that all-fresh air runs;System reclaims the energy of indoor exhaust wind, reduces Fresh air handing energy consumption;Utilize the condensation heat that heat pump produces as new wind heat again, make low taste thermal source be utilized;The coupling of heat pump techniques and recuperation of heat is used, and reduces the condensation temperature of heat pump, improves evaporating temperature, finally improves the efficiency of source pump;By removing, in the new additional filtration of wind part and sterilizing unit, the dust and antibacterial carried secretly in air, play the effect purifying air, improve indoor air quality.
5th, the present invention has simple in construction, arranges rationally, the advantages such as cost of manufacture is low.
Accompanying drawing explanation
Fig. 1 is the summer condition structural representation of the present invention;
Fig. 2 is the winter condition structural representation of the present invention;
Description of reference numerals:
1, exhaust blower;2, First Heat Exchanger;3, energy regenerating runner;4, four-way change-over valve;
5, compressor;6, roughing efficiency air filter;7, medium effeciency filter;8, the second heat exchanger;
9, heating power expansion valve;10, condensation heat recoverer;11, humidifier;12, pressure fan;
13, the first electromagnetic valve;14, the second electromagnetic valve.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As shown in Figure 1-2, rotary-type total heat recovery type Fresh air handing unit of the present invention, including machine unit shell, described machine unit shell is provided with new wind and enters chamber, recycling cavity, wind pushing cavity, return air chamber and air draft chamber, described new wind enters one end, chamber and is provided with fresh wind port, described wind pushing cavity one end is provided with air outlet, and one end, described return air chamber is provided with return air inlet, and one end, described air draft chamber is provided with exhaust outlet;The entrance of described new wind chamber, wind pushing cavity, return air chamber are all connected with recycling cavity with the other end in air draft chamber and communicate.
Described new wind enters chamber by being disposed with roughing efficiency air filter 6, medium effeciency filter 7 inward outward;Described recycling cavity is provided with energy regenerating runner 3;Described wind pushing cavity is disposed with the second heat exchanger 8, condensation heat recoverer 10, humidifier 11 and pressure fan 12 outward by inner;Described return air chamber is by being disposed with compressor 5 and four-way change-over valve 4 inward outward;Described air draft chamber is disposed with First Heat Exchanger 2 and exhaust blower 1 outward by inner.
First port of described four-way change-over valve 4 is connected with compressor 5 one end and communicates, second port of described four-way change-over valve 4 is connected with First Heat Exchanger 2 one end and communicates, 3rd port of described four-way change-over valve 4 is connected with compressor 5 other end and communicates, and the 4th port and second heat exchanger 8 one end of described four-way change-over valve 4 communicate.
Described First Heat Exchanger 2 other end is connected to the first electromagnetic valve 13 and the second electromagnetic valve 14 by pipeline, and second heat exchanger 8 other end is connected with condensation heat recoverer 10 one end by secondary pipeline and communicates;Described first electromagnetic valve 13 other end is connected with the middle of secondary pipeline by pipeline and communicates;Described second electromagnetic valve 14 other end is connected with condensation heat recoverer 10 other end by pipeline and communicates.
Further, described secondary pipeline is provided with heating power expansion valve 9, and this heating power expansion valve 9 is arranged between second heat exchanger 8 other end and secondary pipeline and pipeline junction.
The operation principle of the present invention:
Summer condition is as shown in Figure 1: new wind first passes around roughing efficiency air filter 6 and medium effeciency filter 7 carries out purified treatment;New wind after purified treatment carries out cold recovery process by energy regenerating runner 3;New wind after energy regenerating carries out cooling humidity reduction process through the second heat exchanger 8;In order to prevent, wind pushing temperature is too low causes indoor air outlet condensation, and the new wind condensation heat recoverer 10 after cooling humidity reduction process carries out suitable hyperthermic treatment;Now humidifier 11 does not work;Finally by pressure fan 12, the new wind processed is sent into room.
Return air in room first passes around energy regenerating runner 3 and carries out energy regenerating process;Return air after energy regenerating process carries out heat exchange again with the cold-producing medium of (because this return air temperature is also lower than outdoor air) with First Heat Exchanger 2;Outdoor is drained into finally by exhaust blower 1.
When heat pump unlatching in summer cooling condition, cold-producing medium first passes through compressor 5 and four-way change-over valve 4 drains into First Heat Exchanger 2, and the return air after total heat recovery and cold-producing medium carry out heat exchange, and cold-producing medium is carried out cooling process;Cold-producing medium after cooling process enters condensation heat recoverer 10, and condensation heat is carried out recuperation of heat by new wind, and the first electromagnetic valve 13 cuts out, and the second electromagnetic valve 14 is opened;When not needing condensing units, the first electromagnetic valve 13 is opened, and the second electromagnetic valve 14 cuts out;Cold-producing medium, after condensation heat recoverer 10, enters the second heat exchanger 8 through secondary pipeline, the decompression cooling of heating power expansion valve 9 constant enthalpy, and the new wind after total heat recovery and cold-producing medium carry out heat exchange at the second heat exchanger 8;Cold-producing medium evaporates laggard four-way change-over valve 4 and returns to compressor 5, completes kind of refrigeration cycle.
Winter condition is as shown in Figure 2: new wind first passes around roughing efficiency air filter 6 and medium effeciency filter 7 carries out purified treatment;New wind after purified treatment carries out total heat recovery process by recuperation of heat runner 3;New wind after recuperation of heat is heated processing through the second heat exchanger 8;New wind after heat treated carries out adding wet process through humidifier 11;New wind is sent to room finally by pressure fan 12.
Return air first passes around recuperation of heat runner 3 and carries out total heat recovery process;Return air and the cold-producing medium of First Heat Exchanger 2 after recuperation of heat process carry out heat exchange;Outdoor is drained into finally by exhaust blower 1.
Winter, heat pump opened heating condition, and cold-producing medium first passes through compressor 5 and four-way change-over valve 4 drains into the second heat exchanger 8, and the new wind after total heat recovery and cold-producing medium carry out heat exchange, and cold-producing medium is carried out cooling process;Cold-producing medium after cooling process enters First Heat Exchanger 2 through secondary pipeline, the decompression cooling of heating power expansion valve 9 constant enthalpy, and the first electromagnetic valve 13 is opened, and the second electromagnetic valve 14 cuts out;Return air after total heat recovery carries out heat exchange at the second heat exchanger 8 with cold-producing medium;Cold-producing medium evaporates laggard four-way change-over valve 4 and returns to compressor 5, completes heat pump cycle.
Transition season: transition season, heat pump and runner do not work, and new wind carries out purified treatment through roughing efficiency air filter 6 and medium effeciency filter 7, pressure fan 12 blow to room.Return air is drained into outdoor by exhaust blower 1.Whether humidifier works, and more automatically can run according to new wind operating mode and setting air-supply operating mode.
Present invention have the beneficial effect that
The first, energy recuperation of heat and Fresh air handing integral structure;Energy recovery efficiency is about 80%.
The second, in Fresh air handing in summer process, utilize condensation heat to heat new wind, overcome the problem that wind pushing temperature is too low, compared with traditional electrical heating hot mode again, reduce energy resource consumption;Utilize summer air draft as the heat dissipation ventilation of the condenser of heat pump, effectively reduce the condensation temperature of heat pump, improve the efficiency of refrigeration system.
3rd, temperature of outgoing air in winter is as the ventilation of the vaporizer of heat pump, improves the evaporating temperature of vaporizer, improves the refrigerating efficiency of unit.
4th, new wind and air draft first pass through runner heat reclamation device and carry out total heat recovery, new wind is carried out cooling and dehumidifying process by the vaporizer then passing through heat pump, carry out suitable heat treated again through the condenser of heat pump, thus be absent from that leaving air temp is too low and the danger that condenses.
5th it addition, this simple in construction, reasonable in design, low cost of manufacture.
The above is only the better embodiment of the present invention, therefore all equivalences done according to the structure described in present patent application scope, feature and principle change or modify, and are all included within the scope of present patent application.

Claims (2)

1. rotary-type total heat recovery type Fresh air handing unit, including machine unit shell, it is characterized in that: described machine unit shell is provided with new wind and enters chamber, recycling cavity, wind pushing cavity, return air chamber and air draft chamber, described new wind enters one end, chamber and is provided with fresh wind port, described wind pushing cavity one end is provided with air outlet, one end, described return air chamber is provided with return air inlet, and one end, described air draft chamber is provided with exhaust outlet;The entrance of described new wind chamber, wind pushing cavity, return air chamber are all connected with recycling cavity with the other end in air draft chamber and communicate;Described new wind enters chamber by being disposed with roughing efficiency air filter (6), medium effeciency filter (7) inward outward;Described recycling cavity is provided with energy regenerating runner (3);Described wind pushing cavity is disposed with the second heat exchanger (8), condensation heat recoverer (10), humidifier (11) and pressure fan (12) outward by inner;Described return air chamber is by being disposed with compressor (5) and four-way change-over valve (4) inward outward;Described air draft chamber is disposed with First Heat Exchanger (2) and exhaust blower (1) outward by inner;First port of described four-way change-over valve (4) is connected with compressor (5) one end and communicates, second port of described four-way change-over valve (4) is connected with First Heat Exchanger (2) one end and communicates, 3rd port of described four-way change-over valve (4) is connected with compressor (5) other end and communicates, and the 4th port and the second heat exchanger (8) one end of described four-way change-over valve (4) communicate;
Described First Heat Exchanger (2) other end is connected to the first electromagnetic valve (13) and the second electromagnetic valve (14) by pipeline, and the second heat exchanger (8) other end is connected with condensation heat recoverer (10) one end by secondary pipeline and communicates;Described first electromagnetic valve (13) other end is connected with the middle of secondary pipeline by pipeline and communicates;Described second electromagnetic valve (14) other end is connected with condensation heat recoverer (10) other end by pipeline and communicates.
2. rotary-type total heat recovery type Fresh air handing unit according to claim 1, it is characterized in that: described secondary pipeline is provided with heating power expansion valve (9), and this heating power expansion valve (9) is arranged between the second heat exchanger (8) other end and secondary pipeline and pipeline junction.
CN201410704486.7A 2014-12-01 2014-12-01 Rotating wheel type total-heat-recovery fresh air unit Pending CN105716167A (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106196380A (en) * 2016-08-31 2016-12-07 山东华科规划建筑设计有限公司 A kind of cold-producing medium heat of subcooling recycling recuperation of heat air-treatment unit
CN106989473A (en) * 2017-05-19 2017-07-28 珠海格力电器股份有限公司 Vmc
CN107014002A (en) * 2017-05-05 2017-08-04 南京慧和建筑技术有限公司 A kind of ultrasonic humidifying integrated fresh air unit
CN107339763A (en) * 2017-06-27 2017-11-10 苏州诚品家智能科技有限公司 Fresh air ventilator
CN107656563A (en) * 2016-07-26 2018-02-02 沈阳碧蓝环境设备科技有限公司 A kind of electric regenerative facility agricultural environment intelligent monitoring management system
CN107726532A (en) * 2017-11-30 2018-02-23 北京三五二环保科技有限公司 A kind of heat pump fresh air
CN108489251A (en) * 2018-06-11 2018-09-04 南京农业大学 A kind of pump type heat low-temperature circulating formula crop dryer of waste heat recoverable
CN109405086A (en) * 2018-11-30 2019-03-01 上海朗绿建筑科技股份有限公司 Wall-mounted total-heat recovery type fresh air dehumidifier group
CN110621939A (en) * 2017-06-14 2019-12-27 大金工业株式会社 Humidity control unit
CN110715375A (en) * 2019-10-08 2020-01-21 苏州惠林节能材料有限公司 Exhaust air heat recovery type fresh air dehumidifying unit and working method thereof
CN110906520A (en) * 2019-12-04 2020-03-24 青岛科技大学 Air plate type total heat recovery heat exchanger with rotating wheel filtering device
CN112066534A (en) * 2019-06-11 2020-12-11 江苏洁能缘环境科技有限公司 Rotating wheel type energy recovery unit

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CN203837109U (en) * 2014-04-24 2014-09-17 广东申菱空调设备有限公司 Integrated and combined type machine room air conditioner unit
CN204313428U (en) * 2014-12-01 2015-05-06 严卫东 Rotary-type total heat recovery type Fresh air handing unit

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RU2282796C1 (en) * 2005-04-05 2006-08-27 Олег Савельевич Кочетов Method and device for recuperating heat of air
CN102635905A (en) * 2012-05-14 2012-08-15 吕智 Combined heat pump type low-temperature total heat recovery fresh air handling unit with regeneration rotating wheel for dehumidification
CN202692282U (en) * 2012-05-24 2013-01-23 吕智 Double-cold-source heat pump total heat recovery humidity-regulating temperature-controlling fresh air set and control mode thereof
CN203837109U (en) * 2014-04-24 2014-09-17 广东申菱空调设备有限公司 Integrated and combined type machine room air conditioner unit
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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107656563A (en) * 2016-07-26 2018-02-02 沈阳碧蓝环境设备科技有限公司 A kind of electric regenerative facility agricultural environment intelligent monitoring management system
CN106196380A (en) * 2016-08-31 2016-12-07 山东华科规划建筑设计有限公司 A kind of cold-producing medium heat of subcooling recycling recuperation of heat air-treatment unit
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CN107014002A (en) * 2017-05-05 2017-08-04 南京慧和建筑技术有限公司 A kind of ultrasonic humidifying integrated fresh air unit
CN106989473A (en) * 2017-05-19 2017-07-28 珠海格力电器股份有限公司 Vmc
CN106989473B (en) * 2017-05-19 2023-06-20 珠海格力电器股份有限公司 Fresh air system
CN110621939A (en) * 2017-06-14 2019-12-27 大金工业株式会社 Humidity control unit
CN110621939B (en) * 2017-06-14 2021-05-25 大金工业株式会社 Humidity control unit
CN107339763A (en) * 2017-06-27 2017-11-10 苏州诚品家智能科技有限公司 Fresh air ventilator
CN107726532A (en) * 2017-11-30 2018-02-23 北京三五二环保科技有限公司 A kind of heat pump fresh air
CN108489251A (en) * 2018-06-11 2018-09-04 南京农业大学 A kind of pump type heat low-temperature circulating formula crop dryer of waste heat recoverable
CN108489251B (en) * 2018-06-11 2023-08-29 南京农业大学 Heat pump type low-temperature circulating grain drier capable of recycling waste heat
CN109405086A (en) * 2018-11-30 2019-03-01 上海朗绿建筑科技股份有限公司 Wall-mounted total-heat recovery type fresh air dehumidifier group
CN112066534A (en) * 2019-06-11 2020-12-11 江苏洁能缘环境科技有限公司 Rotating wheel type energy recovery unit
CN110715375A (en) * 2019-10-08 2020-01-21 苏州惠林节能材料有限公司 Exhaust air heat recovery type fresh air dehumidifying unit and working method thereof
CN110906520A (en) * 2019-12-04 2020-03-24 青岛科技大学 Air plate type total heat recovery heat exchanger with rotating wheel filtering device

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