WO2020238793A1 - 一种冷凝再热恒温恒湿系统及其控制方法 - Google Patents
一种冷凝再热恒温恒湿系统及其控制方法 Download PDFInfo
- Publication number
- WO2020238793A1 WO2020238793A1 PCT/CN2020/091784 CN2020091784W WO2020238793A1 WO 2020238793 A1 WO2020238793 A1 WO 2020238793A1 CN 2020091784 W CN2020091784 W CN 2020091784W WO 2020238793 A1 WO2020238793 A1 WO 2020238793A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat exchanger
- side end
- reheat
- compressor
- liquid side
- Prior art date
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
Definitions
- the invention relates to an air conditioning system, in particular to an air conditioning air conditioner capable of realizing constant temperature and humidity and a control method thereof, in particular to a condensation reheat constant temperature and humidity system and a control method thereof.
- the purpose of the present invention is to provide a condensing reheat constant temperature and humidity system and its control method for the deficiencies of the prior art, which can respond to different ambient temperatures, adjust in time, always maintain a high reheat effect, reduce energy consumption, and save energy Environmental protection.
- a condensing reheat constant temperature and humidity system comprising a compressor, an outdoor heat exchanger, a four-way valve I, a four-way valve II, a refrigeration heat exchanger, a reheat heat exchanger, an electric heater and an electric humidifier.
- each port of the four-way valve I is respectively connected to the exhaust of the compressor Air port and suction port, as well as the air side end of the refrigeration heat exchanger and the air side end of the outdoor heat exchanger; each port of the four-way valve II is respectively connected to the exhaust port and the suction port of the compressor Port, and the gas side end of the reheat heat exchanger; the liquid side end of the refrigeration heat exchanger and the liquid side end of the reheat heat exchanger are connected in parallel and then connected to the outdoor heat exchanger
- the liquid side end of the refrigeration heat exchanger and the liquid side end of the reheat heat exchanger are respectively provided with an electronic expansion valve; the gas side end of the outdoor heat exchanger is provided with a solenoid valve.
- the compressor is a digital variable capacity compressor.
- a control method for a condensation and reheat constant temperature and humidity system includes the following steps:
- step 3 Check whether the ambient temperature is less than 27°C, if yes, go to the next step, otherwise, the solenoid valve is opened or kept open; return to step 2);
- the invention has reasonable design, simple structure, convenient operation, and can control the outdoor heat exchanger according to different environmental temperatures to ensure a higher reheat effect, reduce energy consumption, and save energy and protect the environment.
- Figure 1 is a schematic diagram of the system structure of the present invention.
- 1- Compressor 2- Four-way Valve II; 3- Four-way Valve I; 4- Solenoid Valve; 5- Outdoor Heat Exchanger; 6-Refrigeration Heat Exchanger; 7- Reheat Heat Exchanger; 8- Electric heater; 9-electric dehumidifier; 10-electronic expansion valve; 11-air duct.
- a condensation and reheat constant temperature and humidity system including a compressor 1, an outdoor heat exchanger 5, a four-way valve I3, a four-way valve II2, a refrigeration heat exchanger 6, a reheat heat exchanger 7, an electric heater 8, and an electric heater.
- the refrigeration heat exchanger 6, the reheat heat exchanger 7, the electric heater 8, and the electric humidifier 9 are arranged in sequence between the air inlet and the air outlet of the air duct 11; the ports of the four-way valve I3 are respectively Connect the discharge port and suction port of the compressor 1, as well as the air side end of the refrigeration heat exchanger 6 and the air side end of the outdoor heat exchanger 5; the ports of the four-way valve II2 are respectively described
- the discharge port and the suction port of the compressor 1, and the gas side end of the reheat heat exchanger 7; the liquid side end of the refrigeration heat exchanger 6 and the liquid side end of the reheat heat exchanger 7 After being connected in parallel, they are connected to the liquid side end of the outdoor heat exchanger 5; the liquid side end of the refrigeration heat exchanger 6 and the liquid side end of the reheat heat exchanger 7 are respectively provided with an electronic expansion valve 10 ;
- the air side end of the outdoor heat exchanger 5 is provided with a solenoid valve 4.
- the compressor 1 is a digital variable capacity compressor, and
- the operation process of the present invention is as follows: fresh air is drawn into the air duct under the action of the fan, first passes through the refrigeration heat exchanger, and dehumidifies by reducing its temperature. Then, it passes through a reheat heat exchanger to heat it to obtain the temperature and humidity specified by the use environment. If it still fails to meet the requirements, turn on the electric heater and/or electric humidifier, and further process the fresh air.
- the refrigerant cycle in the system is divided into two paths, one is A-B-C-D-F-A, and the other is A-E-D-F-A. That is, the two-way refrigerant first exchanges heat through the outdoor heat exchanger and the reheat heat exchanger respectively, and then merges at point D and flows into the refrigeration heat exchanger for heat exchange.
- the ambient temperature at this time is low.
- the dry and wet bulb temperature is: 27/19
- the air humidity is 10.45g/kg.
- the compressor reduces the output according to the change of the ambient temperature to make the system
- the amount of refrigerant circulating is reduced.
- the solenoid valve can be closed to change the circulation route of the refrigerant to: A-B-C-D-F-A, so that the reheat heat exchanger can obtain sufficient refrigerant to generate sufficient heat.
- it can ensure that the refrigeration heat exchanger is fully refrigerated and dehumidify the fresh air.
- the control method of the condensation and reheat constant temperature and humidity system of the present invention includes the following steps:
- step 3 Check whether the ambient temperature is less than 27°C, if yes, go to the next step, otherwise, the solenoid valve is opened or kept open; return to step 2);
- the invention effectively solves the problem of low cooling capacity (dehumidification load) demand and low-load operation of the digital compressor, resulting in a small circulation of the system refrigerant and insufficient reheat, and avoids the energy brought by the use of electric heating. Increase in energy consumption and achieve energy saving and environmental protection.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
Description
Claims (3)
- 一种冷凝再热恒温恒湿系统,包括压缩机、室外换热器、四通阀I、四通阀II、制冷换热器、再热换热器、电加热器和电加湿器,其特征是:所述制冷换热器、再热换热器、电加热器和电加湿器依序设置于风道的进风口和出风口之间;所述四通阀I的各端口分别连接所述压缩机的排气口和吸气口、以及所述制冷换热器气侧端和所述室外换热器气侧端;所述四通阀II的各端口分别连接所述压缩机的排气口和吸气口、以及所述再热换热器的气侧端;所述制冷换热器的液侧端和所述再热换热器的液侧端相并联后,再连接到所述室外换热器的液侧端;所述制冷换热器的液侧端和所述再热换热器的液侧端分别设有电子膨胀阀;所述室外换热器的气侧端设有电磁阀。
- 根据权利要求1所述的冷凝再热恒温恒湿系统,其特征是:所述压缩机为数码变容量压缩机。
- 一种冷凝再热恒温恒湿系统的控制方法,其特征是:包括以下步骤:1)机组处于初始运行状态,电磁阀为开启;2)检测机组是否处于再热模式运行,是则进入下一步骤,否则退出;3)检测环境温度是否小于27℃,是则进入下一步骤,否则,电磁阀开启或保持开启状态;返回到步骤2);4)检测机组能力需求是否小于机组总能力50%,是则进入下一步骤,否则,电磁阀保持开启状态;返回到步骤2);5)电磁阀关闭或保持关闭状态;返回到步骤2)。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910451331.XA CN110173795A (zh) | 2019-05-28 | 2019-05-28 | 一种冷凝再热恒温恒湿系统及其控制方法 |
CN201910451331.X | 2019-05-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020238793A1 true WO2020238793A1 (zh) | 2020-12-03 |
Family
ID=67696315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2020/091784 WO2020238793A1 (zh) | 2019-05-28 | 2020-05-22 | 一种冷凝再热恒温恒湿系统及其控制方法 |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN110173795A (zh) |
WO (1) | WO2020238793A1 (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110173795A (zh) * | 2019-05-28 | 2019-08-27 | 南京天加环境科技有限公司 | 一种冷凝再热恒温恒湿系统及其控制方法 |
CN111561770B (zh) * | 2020-05-21 | 2021-09-21 | 广东美的暖通设备有限公司 | 新风系统及其控制方法、计算机可读存储介质 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000055444A (ja) * | 1998-08-07 | 2000-02-25 | Ntt Power & Building Facilities Inc | 空気調和機 |
CN2762028Y (zh) * | 2004-12-24 | 2006-03-01 | 广东美的电器股份有限公司 | 一种空气调节器 |
CN104990146A (zh) * | 2015-07-24 | 2015-10-21 | 阿尔西制冷工程技术(北京)有限公司 | 恒温恒湿空调机 |
CN110173795A (zh) * | 2019-05-28 | 2019-08-27 | 南京天加环境科技有限公司 | 一种冷凝再热恒温恒湿系统及其控制方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3232455B2 (ja) * | 1998-09-01 | 2001-11-26 | オリオン機械株式会社 | エアプロセッサ |
JP2009513925A (ja) * | 2005-11-02 | 2009-04-02 | エアー テック エクイプメント リミテッド | エネルギー回収/湿度制御システム |
CN101929711A (zh) * | 2010-07-29 | 2010-12-29 | 杭州松井电器有限公司 | 阀控式节能除湿机 |
US10605469B2 (en) * | 2016-07-27 | 2020-03-31 | Johnson Controls Technology Company | System and method for capture of waste heat in an HVAC unit |
CN106545940A (zh) * | 2016-12-29 | 2017-03-29 | 广东申菱环境系统股份有限公司 | 分流式风冷型恒温恒湿空调机 |
-
2019
- 2019-05-28 CN CN201910451331.XA patent/CN110173795A/zh active Pending
-
2020
- 2020-05-22 WO PCT/CN2020/091784 patent/WO2020238793A1/zh active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000055444A (ja) * | 1998-08-07 | 2000-02-25 | Ntt Power & Building Facilities Inc | 空気調和機 |
CN2762028Y (zh) * | 2004-12-24 | 2006-03-01 | 广东美的电器股份有限公司 | 一种空气调节器 |
CN104990146A (zh) * | 2015-07-24 | 2015-10-21 | 阿尔西制冷工程技术(北京)有限公司 | 恒温恒湿空调机 |
CN110173795A (zh) * | 2019-05-28 | 2019-08-27 | 南京天加环境科技有限公司 | 一种冷凝再热恒温恒湿系统及其控制方法 |
Also Published As
Publication number | Publication date |
---|---|
CN110173795A (zh) | 2019-08-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102261701B (zh) | 多级热回收复合除湿新风空气处理机 | |
CN105444310B (zh) | 一种双板双冷源智能新风机组 | |
CN107490283B (zh) | 可快速升温的热回收型调温热泵干燥装置及其运行方法 | |
WO2017193613A1 (zh) | 一种适用于严寒地区的热泵型排风热回收新风空调机组 | |
WO2020238793A1 (zh) | 一种冷凝再热恒温恒湿系统及其控制方法 | |
CN205316557U (zh) | 一种双板双冷源智能新风机组 | |
CN106403143B (zh) | 温湿度独立处理空调系统及其控制方法 | |
CN112229002B (zh) | 一种空调系统及其控制方法 | |
CN110749018A (zh) | 一种单机双级压缩中间抽气热回收新风处理装置 | |
CN110986200B (zh) | 一种新风除湿系统及空调器 | |
CN202119021U (zh) | 多级热回收复合除湿新风空气处理机 | |
CN112229003A (zh) | 一种空调系统及其控制方法 | |
CN114017855B (zh) | 一种用于泳池建筑的热泵综合利用溶液除湿新风系统 | |
CN205957318U (zh) | 多功能型列间空调装置 | |
CN110584177A (zh) | 一种多功能热泵烘干系统 | |
CN213747158U (zh) | 一种空调系统 | |
CN203010775U (zh) | 一种热回收新风除湿机 | |
CN214308097U (zh) | 一种整体式真空型热泵干燥节能装置 | |
CN214468973U (zh) | 一种全空气一体式空调 | |
CN211476147U (zh) | 一种具有冷凝热回收的泳池除湿机 | |
CN108548236A (zh) | 一种一体化节能型空调机 | |
CN210035967U (zh) | 一种空气源热泵化霜系统 | |
CN210004512U (zh) | 恒温除湿空调器 | |
CN113864920A (zh) | 除湿热泵空调系统 | |
CN217635954U (zh) | 一种适用于温湿度独立控制空调系统的新风除湿机 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 20814642 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 20814642 Country of ref document: EP Kind code of ref document: A1 |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 20814642 Country of ref document: EP Kind code of ref document: A1 |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 20814642 Country of ref document: EP Kind code of ref document: A1 |
|
32PN | Ep: public notification in the ep bulletin as address of the adressee cannot be established |
Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 17/01/2023) |