WO2013131436A1 - Air-conditioning unit with heat recovery - Google Patents

Air-conditioning unit with heat recovery Download PDF

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Publication number
WO2013131436A1
WO2013131436A1 PCT/CN2013/071892 CN2013071892W WO2013131436A1 WO 2013131436 A1 WO2013131436 A1 WO 2013131436A1 CN 2013071892 W CN2013071892 W CN 2013071892W WO 2013131436 A1 WO2013131436 A1 WO 2013131436A1
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WO
WIPO (PCT)
Prior art keywords
air
box
evaporator
refrigerant
exhaust
Prior art date
Application number
PCT/CN2013/071892
Other languages
French (fr)
Chinese (zh)
Inventor
荣国华
Original Assignee
Rong Guohua
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Publication date
Priority to CN201210055160.7A priority Critical patent/CN102767876B/en
Priority to CN201210055160.7 priority
Application filed by Rong Guohua filed Critical Rong Guohua
Publication of WO2013131436A1 publication Critical patent/WO2013131436A1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/002Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid
    • F24F12/003Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid using a heat pump
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00Details or features not otherwise provided for
    • F24F2221/54Heating and cooling, simultaneously or alternatively
    • 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]
    • Y02B30/52Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
    • 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

Abstract

Disclosed is an air-conditioning unit with heat recovery, composed of a blower box, a discharge air box, a refrigerating system, and a power distribution control system, wherein the blower box blows new treated outdoor air into a room, and the discharge air box discharges dirty indoor air outside. An evaporator of the refrigerating system is installed in the blower box and is used to cool the air during cooling and switches to a condenser for heating the air during heating. A condenser of the refrigerating system is installed in the discharge air box and during cooling, absorbs the cold of the indoor air and outdoor air and during heating, switches to an evaporator to absorb the heat in the indoor air and outdoor air; therefore, heat and cold in the indoor discharge air is re-used. The device can not only re-heat air but can also independently control the humidity and temperature of the air, with marked energy saving results.

Description

热回收空调机组 Heat recovery air conditioning unit
技术领域 Technical field
本发明属于暖通空调领域,具体涉及采用制冷系统进行热能回收的空调机组。 The invention belongs to the field of HVAC, and particularly relates to an air conditioning unit that uses a refrigeration system for heat energy recovery.
背景技术 Background technique
目前,空调排风热能的回收通常采用转轮式、板翅式,换热效率低,排风与新风之间有渗透和接触,对新风造成污染,不卫生,另外,这类空调机组不具备冷热源,要增加换热设备,由外部提供冷热源。 At present, the recovery of air conditioning exhaust heat energy usually adopts rotary wheel type and plate fin type, and the heat exchange efficiency is low. There is penetration and contact between exhaust air and fresh air, which pollutes fresh air and is unsanitary. In addition, such air conditioning units do not have For cold and heat sources, heat exchange equipment should be added, and a cold and heat source should be provided from the outside.
发明内容 Summary of the invention
本发明的目的在于提供一种结构合理,卫生清洁,充分节能的热回收空调机组。 The object of the present invention is to provide a heat recovery air conditioning unit with reasonable structure, hygienic cleaning and sufficient energy saving.
本发明的解决方案是:热回收空调机组是由送风箱、排风箱、制冷系统、配电控制系统组成。送风箱由新风口、回风口、过滤器、送风机、蒸发器、送风口、附加功能段组成。排风箱由进风口、新风口、过滤器、冷凝器、排风机、排风口、附加功能段组成。制冷系统由压缩机、冷凝器、膨胀节流器、蒸发器、辅助装置、制冷剂循环管、制冷剂组成,制冷系统是热泵系统,或是单冷系统。配电控制系统是由配电设备和自动控制设备组成。 The solution of the invention is that the heat recovery air conditioning unit is composed of a blowing box, a fan box, a refrigeration system and a power distribution control system. The air supply box is composed of a fresh air outlet, a return air outlet, a filter, a blower, an evaporator, an air supply port, and an additional functional section. The exhaust fan is composed of an air inlet, a fresh air outlet, a filter, a condenser, an exhaust fan, an air outlet, and an additional functional section. The refrigeration system consists of a compressor, a condenser, an expansion throttle, an evaporator, an auxiliary device, a refrigerant circulation pipe, and a refrigerant. The refrigeration system is a heat pump system or a single cooling system. The power distribution control system is composed of power distribution equipment and automatic control equipment.
当设备运行时,室外新风和回风被送风机吸入送风箱内,经过制冷系统蒸发器的冷却(夏季)或加热(冬季),空气被处理到设定的参数,通过送风系统送到各个空调区域。室内排风和室外新风被排风机吸入排风箱,经过制冷系统冷凝器的加热(夏季)或冷却(冬季)后排出室外。 When the equipment is running, the outdoor fresh air and return air are sucked into the air supply box by the blower, and after cooling (summer) or heating (winter) of the evaporator of the refrigeration system, the air is processed to the set parameters and sent to each through the air supply system. Air conditioning area. The indoor exhaust and the outdoor fresh air are sucked into the exhaust box by the exhaust fan, and are discharged to the outside after being heated (summer) or cooled (winter) by the condenser of the refrigeration system.
制冷系统夏季工作时,因室内空气温度比室外低,利用室内排风和室外新风冷却排风箱中制冷系统的冷凝器,冷量被冷凝器吸收。在送风箱中,室外新风和室内回风被制冷系统的蒸发器冷却降温后送到空调房间。这样,通过制冷系统的制冷循环,回收利用了室内排风中的冷量。 When the refrigeration system works in summer, because the indoor air temperature is lower than that of the outdoor, the condenser of the refrigeration system in the exhaust fan is cooled by the indoor exhaust air and the outdoor fresh air, and the cooling capacity is absorbed by the condenser. In the blower box, the outdoor fresh air and the indoor return air are cooled and cooled by the evaporator of the refrigeration system and sent to the air-conditioned room. In this way, the cooling capacity in the indoor exhaust air is recovered and utilized by the refrigeration cycle of the refrigeration system.
制冷系统冬季工作时,排风箱中制冷系统的冷凝器转换成了蒸发器,因室内空气温度比室外高,利用室内排风和室外新风加热排风箱中制冷系统的蒸发器,热量被蒸发器吸收。在送风箱中,制冷系统的蒸发器转换成了冷凝器,室外新风和室内回风被冷凝器加热升温后送到空调房间。这样,通过制冷系统的制热循环,回收利用了室内排风中的热量。 When the refrigeration system works in winter, the condenser of the refrigeration system in the exhaust fan is converted into an evaporator. Since the indoor air temperature is higher than the outdoor, the indoor exhaust air and the outdoor fresh air are used to heat the evaporator of the refrigeration system in the exhaust fan, and the heat is evaporated. Absorbed. In the blower box, the evaporator of the refrigeration system is converted into a condenser, and the outdoor fresh air and the indoor return air are heated by the condenser and sent to the air-conditioned room. In this way, the heat in the indoor exhaust air is recovered and utilized by the heating cycle of the refrigeration system.
配电控制系统的配电设备为制冷系统、送风机、排风机、电动风量调节风口、自动控制设备提供电源,自动控制设备根据室内外空气参数的变化,自动调节制冷系统、送风机、排风机、电动风量调节风口的运行状态,保证空调机组的高效和稳定运行。 The power distribution equipment of the power distribution control system provides power for the refrigeration system, the blower, the exhaust fan, the electric air volume adjustment air outlet, and the automatic control equipment. The automatic control equipment automatically adjusts the refrigeration system, the blower, the exhaust fan, and the electric motor according to the changes of indoor and outdoor air parameters. The air volume adjusts the operating state of the tuyere to ensure efficient and stable operation of the air conditioning unit.
附图说明 DRAWINGS
图1是连体式 热回收空调机组构造图 Figure 1 is a structural diagram of a connected heat recovery air conditioning unit
图2是分体式 热回收空调机组构造图 Figure 2 is a structural diagram of a split heat recovery air conditioning unit
图3是分体式 双机型热泵热回收空调机组构造图 Figure 3 is a structural diagram of a split type dual-type heat pump heat recovery air conditioning unit
图4是连体式带再热器的热泵 热回收空调机组构造图 Figure 4 is a structural diagram of a heat pump heat recovery air conditioning unit with a connected reheater
图5是分体式带再热器的热泵 热回收空调机组构造图 Figure 5 is a structural diagram of a heat pump heat recovery air conditioning unit with a split type reheater
图6是 热泵系统图( 1 ) Figure 6 is a heat pump system diagram (1)
图7是 热泵系统图( 2 ) Figure 7 is a heat pump system diagram (2)
图 8 是热泵系统图( 3 ) Figure 8 is a heat pump system diagram (3)
图 9 是热泵系统图( 4 ) Figure 9 is a heat pump system diagram (4)
图 10 是热泵系统图( 5 ) Figure 10 is a heat pump system diagram (5)
图11是 热泵系统图( 6 ) Figure 11 is a heat pump system diagram (6)
图12是 热泵系统图( 7 ) Figure 12 is a heat pump system diagram (7)
图 13 是 热泵系统图( 8 ) Figure 13 is a heat pump system diagram (8)
图 14 是热泵系统图( 9 ) Figure 14 is a heat pump system diagram (9)
图 15 是热泵系统图( 10 ) Figure 15 is a heat pump system diagram (10)
图 16 是热泵系统图( 11 ) Figure 16 is a heat pump system diagram (11)
图 17 是气缸式储液器构造图 Figure 17 is the construction diagram of the cylinder type reservoir
图 18 是隔膜式储液器构造图 Figure 18 is a diaphragm type reservoir construction diagram
图 19 是热泵系统图( 12 ) Figure 19 is a heat pump system diagram (12)
图 20 是三管制多联 式 热泵热回收空调机组构造图 Figure 20 is a three-control multi-connection heat pump heat recovery air conditioning unit structure diagram
图 21 是两管制多联 式 热泵热回收空调机组系统图 Figure 21 is a system diagram of two-regulated multi-heat pump heat recovery air conditioning unit
图 22 是多联式 再热型热泵热回收空调机组 系统图 Figure 22 is a multi-connected reheat heat pump heat recovery air conditioning unit system diagram
图 23 是多联式 双冷源热泵热回收空调机组 系统图 Figure 23 is a multi-connection dual cold source heat pump heat recovery air conditioning unit system diagram
附图标记说明: Description of the reference signs:
1 、送风箱, 2 、排风箱, 3 、 21 、新风口, 4 、回风口, 5 、 20 、过滤器, 6 、 51 、 57 、蒸发器, 7 、隔板, 8 、 67 、 69 、 70 、 72 、制冷剂循环管, 9 、送风机, 10 、 13 、排风口, 11 、 12 、送风口, 14 、电控箱, 15 、排风机, 16 、压缩机, 17 、挡水板, 18 、加湿器, 19 、冷凝器, 22 、进风口, 23 、再热器, 24 、回油毛细管, 25 、 油分离器,26、水冷器,27、四通换向阀,29、31、37、40、58、89、93、97、103、104、106、109、膨胀节流器,30、36、46、59、79、105、储液器,28、32、42、47、60、68、71、88、92、96、干燥过滤器,33、气液分离器,34、35、77、78、80、81、86、87、90、91、94、95、108、 电磁阀, 38 、 39 、 52 、 53 、 54 、 55 、 98 、 99 、 100 、 101 、 102 、单向阀, 41 、 43 、 44 、 45 、 50 、 61 、阀门, 48 、 49 、电动调节阀, 56 、示液镜, 62 、气缸外壳, 63 、活塞, 64 、节流孔管, 65 、保温层, 66 、 73 、气缸端盖, 74 、罐体, 75 、隔膜, 76 、格栅, 82 、低压气管, 83 、高压气管, 84 、高压液管, 85 、房间空调器, 107 、换热器 1, air supply box, 2, exhaust box, 3, 21, fresh air outlet, 4, return air, 5, 20, filter, 6 , 51 , 57 , evaporator , 7 , partition , 8 , 67 , 69 , 70 , 72 , refrigerant circulation pipe , 9 , blower , 10 , 13 , exhaust vent , 11 , 12, air supply, 14, electric control box, 15, exhaust fan, 16, compressor, 17, flap, 18, humidifier, 19, condenser, 22, air inlet, 23 , reheater, 24, oil return capillary, 25 Oil separator, 26, water cooler, 27, four-way reversing valve, 29, 31, 37, 40, 58, 89, 93, 97, 103, 104, 106, 109, expansion throttle, 30, 36, 46, 59, 79, 105, accumulator, 28, 32, 42, 47, 60, 68, 71, 88, 92, 96, drying filter, 33, gas-liquid separator, 34, 35, 77, 78 , 80, 81, 86, 87, 90, 91, 94, 95, 108, Solenoid valves, 38, 39, 52, 53 , 54 , 55 , 98 , 99 , 100 , 101 , 102 , check valves , 41 , 43 , 44 , 45, 50, 61, valves, 48, 49, electric control valve, 56, liquid mirror, 62, cylinder housing, 63, piston, 64, orifice tube, 65 , insulation, 66, 73, cylinder end cap, 74, tank, 75, diaphragm, 76, grille, 82, low pressure air pipe, 83, high pressure air pipe, 84, high pressure liquid pipe, 85 , room air conditioner, 107, heat exchanger
具体实施办法 Specific implementation
图 1 是一种连体式 热回收空调机组构造图,该设备由送风箱 1 、排风箱 2 、制冷系统、配电控制系统四大部分组成。 Figure 1 is a structural diagram of a connected heat recovery air conditioning unit, which is provided by a blower box 1 and a bellows box 2 The refrigeration system and the power distribution control system are composed of four parts.
箱体采用钢板等材料制成,用聚氨酯等保温材料保温。箱体上设有检查门,便于人员进入箱内检修和维护。送风箱 1 与排风箱 2 之间由隔板 7 断开,贴保温材料,防止新风与排风之间窜风和热交换。送风箱 1 、排风箱 2 可以做成整体式的,把所需的设备安装在一个完整的箱体内,整体式的空调机组不便于运输、安装和检修,但节省材料;也可以做成分段组合式的,把不同功能的设备放在若干个功能段内,做成若干个小箱体,到现场后再拼装成一个整体。例如:送风箱 1 中,把新风口 3 、回风口 4 、过滤器 5 做成进风混合过滤段,以此类推,可做成送风机段、蒸发器段、加湿送风段。排风箱 2 可做成进风混合过滤段、冷凝器段、制冷主机和电控箱段、排风机段。每段可以拆卸组装,便于运输、安装和检修。送风箱 1 、排风箱 2 可根据需要附加其它功能段,如附加电加热段、空气消毒段、消声段、检修段等。 The box body is made of steel plate and other materials, and is insulated with a heat insulating material such as polyurethane. An inspection door is provided on the cabinet to facilitate access and maintenance of the personnel. Air supply box 1 Disconnected from the exhaust box 2 by the partition 7 and placed with insulation material to prevent hurricane and heat exchange between fresh air and exhaust air. Air supply box 1 , air exhaust box 2 Can be made in one piece, the required equipment is installed in a complete box, the integrated air conditioning unit is not convenient to transport, install and repair, but saves materials; can also be made into a segmented combination, with different functions The equipment is placed in several functional sections, and is made into a number of small boxes, which are assembled into a whole after being on the scene. For example: air box In 1 , the fresh air outlet 3, the return air outlet 4, and the filter 5 are made into the inlet air mixing filter section, and so on, and can be made into a blower section, an evaporator section, and a humidifying and blowing section. Air exhaust box 2 It can be made into the inlet air mixing filter section, the condenser section, the cooling main unit, the electric control box section and the exhaust fan section. Each section can be disassembled for easy transportation, installation and overhaul. Air supply box 1 , air exhaust box 2 Other functional sections may be added as needed, such as an additional electric heating section, an air disinfection section, an anechoic section, an inspection section, and the like.
制冷系统主机部分(压缩机 16 等设备)可放在箱体内,也可放在箱体外,蒸发器 6 、冷凝器 19 、制冷剂循环管 8 等设备位于箱体内。蒸发器 6 、冷凝器 19 采用直膨式结构盘管等形式的换热器,保证制冷剂在其中蒸发和冷凝,换热器用铜管和铝翅片等材料制作,该制冷系统为单冷系统。 The main part of the refrigeration system (equipment such as compressor 16) can be placed in the cabinet or outside the cabinet, evaporator 6 and condenser 19 The equipment such as the refrigerant circulation pipe 8 is located in the casing. Evaporator 6, condenser 19 The heat exchanger in the form of a direct expansion structure coil is used to ensure that the refrigerant evaporates and condenses therein, and the heat exchanger is made of a copper tube and an aluminum fin, and the refrigeration system is a single cooling system.
配电控制系统的电控箱 14 装有控制器、显示器、配电设备等,可挂在箱体外,也可嵌入箱体内,或与箱体分体设置,各种配电和控制设备及管线分布于箱体内。穿越隔板 7 的各种管线应做密封处理,防止漏风。 Electrical control box for distribution control system 14 It is equipped with controller, display, power distribution equipment, etc., which can be hung outside the box, or embedded in the box, or separated from the box. Various power distribution and control equipment and pipelines are distributed in the box. Crossing the partition 7 All kinds of pipelines should be sealed to prevent air leakage.
夏季设备工作时,在送风箱 1 中送风机 9 的作用下,室外高温高湿的新风从新风口 3 、室内回风从回风口 4 进入箱内,混合后被过滤器 5 除尘过滤,通过蒸发器 6 ,被降温除湿,达到设定的温湿度后,经过送风机 9 ,从送风口 11 送到空调区域,此时排风口 10 关闭;在排风箱 2 中排风机 15 的作用下,室外新风从新风口 21 、室内排风从进风口 22 进入箱内,混合后被过滤器 20 除尘过滤,通过冷凝器 19 ,被加热升温,再通过排风机 15 、排风口 13 排至室外,此时送风口 12 关闭。在送风箱 1 中,蒸发器 6 蒸发吸热,送风被降温除湿;在排风箱 2 中,冷凝器 19 被室内外空气冷却降温,室内排风中的冷量被回收利用。 During the summer equipment operation, under the action of the blower 9 in the blower box 1, the outdoor high temperature and high humidity fresh air from the fresh air outlet 3, the indoor return air from the return air outlet 4 Enter the box, mix and filter by filter 5, remove the filter through the evaporator 6, and cool down and dehumidify. After reaching the set temperature and humidity, pass the blower 9 and send it from the air supply port 11 to the air-conditioning area. At this time, the air outlet 10 Closed; under the action of the exhaust fan 15 in the exhaust fan 2, the outdoor fresh air enters the box from the fresh air outlet 21, the indoor exhaust air from the air inlet 22, and is filtered by the filter 20 to be filtered by the filter 20 and passed through the condenser. It is heated and heated, and then discharged to the outside through the exhaust fan 15 and the exhaust vent 13 at this time, and the air supply port 12 is closed. In the blower box 1, the evaporator 6 evaporates and absorbs heat, and the air supply is cooled and dehumidified; in the exhaust box 2 In the middle, the condenser 19 is cooled by the indoor and outdoor air, and the amount of cold in the indoor exhaust is recycled.
冬季设备工作时,空调机组向空调房间送热风,因制冷系统为单冷系统,需关闭送风口 11 、排风口 13 ,打开排风口 10 、送风口 12 ,送风箱 1 转换为排风箱,而排风箱 2 转换为送风箱。在送风箱 1 中送风机 9 的作用下,室外低温的新风从新风口 3 、室内排风从回风口 4 进入箱内,混合后被过滤器 5 除尘过滤,通过蒸发器 6 被冷却降温,经过送风机 9 、排风口 10 排至室外;在排风箱 2 中排风机 15 的作用下,室外新风从新风口 21 、室内回风从进风口 22 进入箱内,混合后被过滤器 20 除尘过滤,通过冷凝器 19 被加热升温,如果湿度低,还需加湿器 18 加湿,达到设定的湿度后,经过挡水板 17 、排风机 15 从送风口 12 送到空调区域。在送风箱 1 中,蒸发器 6 蒸发吸热,吸收排风中的热量;在排风箱 2 中,冷凝器 19 冷凝放热,加热室内回风和室外新风,室内排风中的热量被回收利用。冬季设备运行之前,应将排风箱 2 清洗干净,避免空调送风被污染。 When the winter equipment is working, the air conditioning unit sends hot air to the air-conditioned room. Because the refrigeration system is a single cooling system, the air supply port 11 and the air outlet 13 need to be closed. , open the exhaust vent 10, the air supply port 12, the air supply box 1 is converted into a ventilating box, and the air venting box 2 is converted into a blowing box. Under the action of the blower 9 in the blower box 1, the outdoor low temperature fresh air from the fresh air outlet 3 The indoor exhaust air enters the box from the air return port 4, and is filtered by the filter 5 after being mixed. It is cooled and cooled by the evaporator 6, and is discharged to the outside through the blower 9 and the exhaust vent 10; the exhaust fan is arranged in the exhaust box 2 Under the action of 15, the outdoor fresh air enters the tank from the fresh air outlet 21 and the indoor return air from the air inlet 22, and is filtered by the filter 20 to be filtered by the filter and passed through the condenser. It is heated and heated. If the humidity is low, the humidifier 18 is humidified. After the set humidity is reached, it is sent to the air-conditioning area from the air supply port 12 through the water deflector 17 and the exhaust fan 15. In the blower box 1, the evaporator 6 The heat is evaporated to absorb the heat in the exhaust air; in the exhaust box 2, the condenser 19 condenses and releases heat, heating the indoor return air and the outdoor fresh air, and the heat in the indoor exhaust is recycled. Before the winter equipment is running, the exhaust box should be 2 Clean and avoid air conditioning and air pollution.
这样,通过风阀的切换,利用单冷制冷系统,也可以实现夏季送冷风、冬季送热风的目的。 In this way, by switching the damper, the single cold cooling system can also be used to deliver cold air in summer and hot air in winter.
设备运行时,配电控制系统的配电设备为制冷系统、送风机 9 、排风机 15 、电动风量调节风口、自动控制系统提供电源。制冷系统为变容量系统,压缩机 16 为变容量压缩机,送风机 9 、排风机 15 为变频调速风机,新风口 3 、 21 、回风口 4 、排风口 10 、 13 、送风口 11 、 12 、进风口 22 为电动风量调节风口,也可采用手动、电动两用风量调节风口,自动控制设备根据室内外空气参数的变化,控制压缩机 16 的排气量,自动调节制冷系统的制冷量或制热量,控制送风机 9 和排风机 15 的转速、各个风口的开度,自动调节风量,保证空调机组的高效和稳定运行。自动控制系统中有控制器、显示器、传感器、执行器等设备,通常采用微机控制(如 PLC 控制器),具有自主设定参数、故障检测、自动报警等功能,能够通过触摸屏现场控制,也可以通过计算机键盘、鼠标远程控制,以及通过局域网、互联网实现网络控制。 When the equipment is running, the power distribution equipment of the power distribution control system is the refrigeration system, the blower 9 , and the exhaust fan 15 The electric air volume adjustment air outlet and the automatic control system provide power. The refrigeration system is a variable capacity system, the compressor 16 is a variable capacity compressor, the blower 9 and the exhaust fan 15 are frequency conversion speed control fans, and the fresh air outlets 3, 21 , return air outlet 4, exhaust vent 10, 13, air supply port 11, 12, air inlet 22 For the electric air volume adjustment air outlet, the manual and electric dual-purpose air volume adjustment air outlet can also be used, and the automatic control device controls the compressor according to the change of the indoor and outdoor air parameters. The amount of exhaust gas, automatically adjusts the cooling capacity or heating capacity of the refrigeration system, controls the blower 9 and the exhaust fan 15 The speed of rotation and the opening of each tuyere automatically adjust the air volume to ensure efficient and stable operation of the air conditioning unit. The automatic control system has controllers, displays, sensors, actuators, etc., usually using microcomputer control (such as PLC Controller), with autonomous setting parameters, fault detection, automatic alarm and other functions, can be controlled by the touch screen on-site, remote control through computer keyboard, mouse, and network control through LAN, Internet.
夏季运行时,蒸发器6会产生大量的低温冷凝水,为了节能,可以通过重力自流或水泵加压的办法,把这部分低温冷凝水喷洒到排风箱2中,用于冷却排风或冷凝器19。在蒸发器6的下面装有冷凝水集水盘,收集冷凝水,并排到箱体外。 送风箱 1 、 排风箱2 可以放在室内,也可以放在室外,如放在屋顶上,可减少占地面积。另外,进、排风的方向和 风口的位置也可以根据需要进行调整。 During summer operation, the evaporator 6 generates a large amount of low-temperature condensed water. In order to save energy, this part of the low-temperature condensed water can be sprayed into the exhaust box 2 by gravity gravity or water pump pressure for cooling exhaust or condensation. 19. A condensate collecting pan is placed under the evaporator 6, and the condensed water is collected and discharged to the outside of the tank. Air supply box 1 , The air exhaust box 2 can be placed indoors or placed outdoors, such as on the roof, to reduce the floor space. In addition, the direction of the intake and exhaust and the position of the tuyere can also be adjusted as needed.
上述设备中,送风箱 1 中带有回风口 4 ,可以处理室内回风,该机组适用于全空气空调系统,如变风量空调系统,适用于大型商场、写字楼。当不带有回风口 4 时,该设备为全新风空调机组,送风为全新风,清洁卫生,适用于空气卫生标准较高的宾馆、医院。 In the above device, the air supply box 1 has a return air inlet 4 It can handle indoor return air. The unit is suitable for all air conditioning systems, such as variable air volume air conditioning systems, suitable for large shopping malls and office buildings. When there is no return air outlet 4 At the time, the equipment is a brand-new air-conditioning unit, and the air supply is fresh air, clean and sanitary, and is suitable for hotels and hospitals with high air hygiene standards.
图 2 是一种分体式 热回收空调机组,送风箱 1 与 排风箱2是分开的,设备出厂时,蒸发器6或冷凝器19与制冷系统主机连接的制冷剂循环管8是断开并密封的,与电控箱14连接的各类线路也是断开的,现场安装时,制冷剂循环管8通过快速接头连接,各类线路接入电控箱14。两个箱体可以根据用户的需要放在不同的位置,布置更加灵活,例如可以把排风箱2放在屋顶上,节省占地面积,减少机组噪音的影响。 Figure 2 is a split heat recovery air conditioning unit, the air supply box 1 and The exhaust fan box 2 is separated. When the device is shipped from the factory, the refrigerant circulating pipe 8 connected to the main body of the refrigeration system by the evaporator 6 or the condenser 19 is disconnected and sealed, and the various lines connected to the electric control box 14 are also disconnected. When the field is installed, the refrigerant circulation pipe 8 is connected through a quick joint, and various types of lines are connected to the electric control box 14. The two cabinets can be placed in different positions according to the needs of the user, and the arrangement is more flexible. For example, the air exhaust box 2 can be placed on the roof to save floor space and reduce the noise of the unit.
图 3 是分体式 双机型热泵热回收空调机组,它有两套独立的制冷系统。其中一套是热泵系统,用于冷却或加热空气,另一套为单冷系统或热泵系统,用于再热被冷却的空气,或既可用于再热,也可用 于冷却;或者两套独立的制冷系统都是单冷系统,其中一套用于空气的冷却,另一套用于空气的再热、加热或冷却。 两套 机组互为备用,虽然增加了设备,但可靠性提高。因此该设备具有空调所需的双冷源、双热源、一冷一热源、单冷源、单热源,可满足多种空调工况所需。图3中两套独立的制冷系统都是热泵系统,当夏季需要空调再热时,在新风箱1中,左侧的蒸发器6转化为冷凝器,作为再热器使用,室内回风 和室外新风混合后,先经过右侧 蒸发器6的降温除湿,再被 左侧的 蒸发器6加热到设定的送风温度,此时在排风箱2中, 左侧的 冷凝器19转化为蒸发器,室内排风 和室外新风被冷却降温,然后送入到右侧的 冷凝器19,用于冷凝散热, 制冷效率提高,抵消了因再热而增加的能耗, 室内排风中的冷量得到回收利用。 因为有两套制冷系统,带有两个蒸发器,为双冷源,其中右侧 蒸发器6可用于 室外新风的 降温除湿,有凝结水产生,为湿式蒸发器,左侧蒸发器6可用于 室内回风的干式降温,无凝结水产生, 为干式蒸发器, 从而实现夏季对空气的温湿度独立控制处理,过程是:右侧回风口 4 关闭或取消,室外高温潮湿的新风从新风口 3 进入,经过右侧 蒸发器6的降温除湿,变成干燥的空气,与左侧 回风口 4 进入的室内回风混合,再经过 左侧蒸发器6的降温,达到设定的温度后送入空调房间,由于 右侧 蒸发器6用于降温除湿,它的蒸发温度为6℃左右,而左侧蒸发器6不用于除湿,它的蒸发温度可提高到16℃左右, 制冷系统的效率有显著的提高,达到节能的目的。上述设备也可以做成图 1 所示的连体式 空调机组,两套制冷系统在自动控制设备精确控制下,保证协调一致、高效稳定运行。 Figure 3 is a split type Dual-machine heat pump heat recovery air conditioning unit with two independent refrigeration systems. One of them is a heat pump system for cooling or heating the air, and the other is a single cooling system or a heat pump system for reheating the cooled air, or both for reheating or For cooling; or two separate refrigeration systems are single cooling systems, one for air cooling and the other for air reheat, heating or cooling. Two sets The units are spared each other, and although the equipment is added, the reliability is improved. Therefore, the device has the double cold source, the double heat source, the cold one heat source, the single cold source and the single heat source required for the air conditioner, and can meet various air conditioning working conditions. In Figure 3, the two independent refrigeration systems are all heat pump systems. When the air conditioner needs to be reheated in summer, in the new bellows 1, the evaporator 6 on the left side is converted into a condenser, used as a reheater, and the indoor return air. After being mixed with the outdoor fresh air, the temperature is dehumidified by the right evaporator 6 and then heated by the evaporator 6 on the left side to the set supply air temperature. At this time, in the exhaust box 2, the condenser 19 on the left side is converted. For the evaporator, the indoor exhaust The outdoor fresh air is cooled and cooled, and then sent to the right condenser 19 for condensation heat dissipation, which improves the cooling efficiency, offsets the increased energy consumption due to reheating, and the cooling capacity in the indoor exhaust is recycled. Because there are two refrigeration systems with two evaporators, which are dual cold sources, the right evaporator 6 can be used for outdoor fresh air cooling and dehumidification, with condensed water production, for wet evaporators, the left evaporator 6 can be used for The dry return of indoor return air, non-condensed water generation, is a dry evaporator, so as to achieve independent control of temperature and humidity of air in summer, the process is: right return air outlet 4 is closed or canceled, outdoor high temperature and humid fresh air from fresh air outlet 3 After entering, passing the dehumidification of the right evaporator 6 to become dry air, mixing with the indoor return air entering the left return air inlet 4, and then cooling the temperature through the left evaporator 6, reaching the set temperature and then feeding to the air conditioner. Room due to The right evaporator 6 is used for cooling and dehumidification, and its evaporation temperature is about 6 ° C, while the left evaporator 6 is not used for dehumidification, and its evaporation temperature can be increased to about 16 ° C. The efficiency of the refrigeration system has been significantly improved to achieve energy saving. The above equipment can also be made into the connected type shown in Figure 1. The air conditioning unit and the two sets of refrigeration systems are under the precise control of the automatic control equipment to ensure coordinated, efficient and stable operation.
图4是连体式带再热器的热泵 热回收空调机组,也可称为 再热型热泵热回收空调机组, 它带有一个 蒸发器6和一个再热器23,其中再热器23可以转化为蒸发器,形成双蒸发器,因此该设备不仅可以具有夏季再热功能,也可以实现 夏季对空气的温湿度独立控制处理。当使用再热功能时,位于 蒸发器6与再热器23之间的回风口4关闭,室内回风从右侧的回风口4进入, 室外新风从新风口 3 进入,两者混合后,先经过 蒸发器6的降温除湿,再被再热器23加热到设定的送风温度。当 夏季温湿度独立控制时,位于 蒸发器6与再热器23之间的回风口4打开,再热器23转化为蒸发器,右侧的回风口4关闭, 室外高温潮湿的新风从新风口 3 进入,经过 蒸发器6的降温除湿,变成干燥的空气,与左侧 回风口 4 进入的室内回风混合,再经过 再热器23的干式降温,达到设定的温度后送入空调房间。 Figure 4 is a heat pump heat recovery air conditioning unit with a reheater, also known as a reheat heat pump heat recovery air conditioning unit, with a The evaporator 6 and a reheater 23, wherein the reheater 23 can be converted into an evaporator to form a double evaporator, so that the device can not only have a summer reheat function, but also can realize In summer, the temperature and humidity of the air are independently controlled. When the reheat function is used, the return air opening 4 between the evaporator 6 and the reheater 23 is closed, and the indoor return air enters from the right return air outlet 4, and the outdoor fresh air is supplied from the fresh air outlet 3 After entering, the two are mixed, first dehumidified by the temperature of the evaporator 6, and then heated by the reheater 23 to the set supply air temperature. When the summer temperature and humidity are independently controlled, it is located The return air opening 4 between the evaporator 6 and the reheater 23 is opened, the reheater 23 is converted into an evaporator, the right return air outlet 4 is closed, and the outdoor hot and humid fresh air enters from the fresh air outlet 3 through The evaporator 6 is cooled and dehumidified to become dry air, mixed with the indoor return air entering the left return air inlet 4, and then passed through the dry cooling of the reheater 23 to reach the set temperature and then sent to the air-conditioned room.
图5是分体式带再热器的热泵 热回收空调机组,送风箱 1 与 排风箱2是分开的, 它布置灵活,可有效利用空间,运输和安装方便。 Figure 5 is a split heat pump heat recovery air conditioning unit with a reheater. The air supply box 1 is separated from the air exhaust box 2, It is flexible in layout, making efficient use of space, and easy to transport and install.
图6是上述 热回收空调机组热泵系统图, 当系统进行 制冷循环时,制冷剂循环过程是:压缩机 16 →油分离器25→水冷器26→四通换向阀27→冷凝器19→干燥过滤器28→膨胀节流器29→储液器30→膨胀节流器31→干燥过滤器32→蒸发器6→四通换向阀27→气液分离器33→ 压缩机 16 ; 当系统进行 制热循环时,制冷剂循环过程是:压缩机 16 →油分离器25→水冷器26→四通换向阀27→蒸发器6→干燥过滤器32→膨胀节流器31→储液器30→膨胀节流器29→干燥过滤器28→冷凝器19→四通换向阀27→气液分离器33→ 压缩机 16 。 Fig. 6 is a heat pump system diagram of the above heat recovery air conditioning unit. When the system performs a refrigeration cycle, the refrigerant cycle process is: compressor 16 → oil separator 25 → water cooler 26 → four-way switching valve 27 → condenser 19 → drying filter 28 → expansion throttle 29 → reservoir 30 → expansion throttle 31 → drying filter 32 → evaporator 6→ four-way reversing valve 27→ gas-liquid separator 33→ Compressor 16 ; When the system performs a heating cycle, the refrigerant cycle is: compressor 16 → oil separator 25 → water cooler 26 → four-way switching valve 27 → evaporator 6 → drying filter 32 → expansion throttle 31 → reservoir 30 → expansion throttle 29 → drying filter 28 → condenser 19→ four-way reversing valve 27→ gas-liquid separator 33→ Compressor 16 .
从压缩机 16 排出的高压高温气态制冷剂在油分离器 25 中与润滑油分离,通过回油毛细管 24 ,润滑油回流到压缩机 16 ,也可以通过其它方式回流润滑油。 The high pressure, high temperature gaseous refrigerant discharged from the compressor 16 is separated from the lubricating oil in the oil separator 25 through the oil return capillary 24 The lubricating oil is returned to the compressor 16, and the lubricating oil can also be refluxed by other means.
水冷器26带有加热器,高温制冷剂通过时,加热其中的自来水,为用户提供生活热水,也节省了燃料费,同时由于制冷剂的热量被自来水吸收,用于冷凝制冷剂的新风量就可以减少,风机耗电量降低。水冷器26可采用螺旋管式、壳管式、套管式等结构形式,使用闭式有压容器或开式无压容器,图6中采用的是开式无压容器,它离 压缩机 16 排气口越近,热回收效果越好 。 在冬季, 水冷器26通常停止工作,不生产热水,制冷剂的冷凝热用于空调加热,如果水冷器25在冬季也能生产热水,需要加大系统容量,提高产热量,如:增大压缩机16的功率,增大排风箱2中室外新风量和排风机15的排风量。 The water cooler 26 is provided with a heater. When the high-temperature refrigerant passes, the tap water is heated to provide the user with domestic hot water, and the fuel cost is saved. At the same time, since the heat of the refrigerant is absorbed by the tap water, the fresh air volume for condensing the refrigerant is used. It can reduce the power consumption of the fan. The water cooler 26 can be in the form of a spiral tube type, a shell tube type, a sleeve type or the like, and a closed type pressurized container or an open type pressureless container is used. In Fig. 6, an open type pressureless container is used, which is away from The closer the compressor 16 exhausts, the better the heat recovery. in winter, The water cooler 26 usually stops working, does not produce hot water, and the condensation heat of the refrigerant is used for heating the air conditioner. If the water cooler 25 can also produce hot water in winter, it is necessary to increase the system capacity and increase the heat generation, such as: increasing the compressor. The power of 16 increases the amount of fresh air outside the exhaust box 2 and the amount of exhaust air of the exhaust fan 15.
四通换向阀27用于热泵系统制冷与制热工况的转换,它也可以用电磁阀、单向阀等设备代替。 The four-way reversing valve 27 is used for the conversion of the cooling and heating conditions of the heat pump system, and it can also be replaced by a solenoid valve or a check valve.
膨胀节流器29、31为单向膨胀节流器,制冷时,膨胀节流器29全开、31节流,制热时,膨胀节流器31全开、29节流,通常采用电子膨胀阀,调节制冷剂流量比较快速准确,也可采用其它膨胀节流器,如毛细管,适用于小型系统。 The expansion restrictor 29, 31 is a one-way expansion throttle. When cooling, the expansion throttle 29 is fully open and 31 throttled. When heating, the expansion throttle 31 is fully open and 29 throttled, usually using electronic expansion. Valves, regulating refrigerant flow is faster and more accurate, and other expansion restrictors, such as capillary tubes, can be used for small systems.
当热泵系统负荷变化时,储液器30用于储存多余的高压液态制冷剂。 The accumulator 30 is used to store excess high pressure liquid refrigerant when the heat pump system load changes.
气液分离器33用于气态与液态制冷剂的分离,保证进入压缩机内的制冷剂为气态,避免液击发生。 The gas-liquid separator 33 is used for the separation of the gaseous and liquid refrigerants to ensure that the refrigerant entering the compressor is in a gaseous state to avoid liquid hammering.
压缩机16采用变容量压缩机,如:变频转子式、涡旋式、螺杆式压缩机。当系统制冷量、制热量变化时,压缩机16也适时变容量输出,实现节能运行。当 热泵系统中有多台压缩机 16 并联运行时,压缩机 16 全部采用定容量压缩机,或全部采用变容量压缩机,或者采用变容量压缩机与定容量压缩机的组合,上述组合方式都可以实现变容量运行, 达到节能的目的。 The compressor 16 is a variable capacity compressor such as a variable frequency rotor type, a scroll type, or a screw type compressor. When the system cooling capacity and heating capacity change, the compressor 16 also changes the capacity output in time to achieve energy-saving operation. when There are multiple compressors in the heat pump system. 16 When operating in parallel, the compressor 16 All of them use fixed-capacity compressors, or all of them use variable-capacity compressors, or a combination of variable-capacity compressors and fixed-capacity compressors. The above combination can realize variable-capacity operation and achieve energy-saving.
另外,热泵系统中除了 回油毛细管 24 、 油分离器25、四通换向阀27、储液器30、干燥过滤器28、32、气液分离器33等辅助设备外,还设有其它辅助设备,如:视液镜、回热器、再冷器、温度、压力传感器等。自控系统根据系统温度、压力的变化,自动调节系统的运行状况,保持热泵系统高效率的运行。 In addition, in the heat pump system, in addition to the oil return capillary 24, In addition to the auxiliary devices such as the oil separator 25, the four-way switching valve 27, the accumulator 30, the drying filter 28, 32, and the gas-liquid separator 33, other auxiliary equipment such as a sight glass and a regenerator are provided. , recooler, temperature, pressure sensor, etc. The automatic control system automatically adjusts the operating status of the system according to changes in system temperature and pressure, and maintains efficient operation of the heat pump system.
图7是再热型热泵热回收空调机组的 热泵系统图,它 带有再热器23, 单向阀 38 、 39 也可换成电磁阀或电动调节阀。 当系统进行再热 制冷循环时,制冷剂循环过程是:压缩机 16 →油分离器25→水冷器26→四通换向阀27→冷凝器19→再热器23→ 单向阀 38 →干燥过滤器28→膨胀节流器29→储液器36→膨胀节流器31→干燥过滤器32→蒸发器6→四通换向阀27→气液分离器33→ 压缩机 16 ; 当系统进行 制热循环时,制冷剂循环过程是:压缩机 16 →油分离器25→水冷器26→四通换向阀27→蒸发器6→干燥过滤器32→膨胀节流器31→储液器30→膨胀节流器29→干燥过滤器28→冷凝器19→四通换向阀27→气液分离器33→ 压缩机 16 。 Figure 7 is a heat pump system diagram of a reheat heat pump heat recovery air conditioning unit with a reheater 23, check valves 38, 39 It can also be replaced by a solenoid valve or an electric control valve. When the system performs a reheat refrigeration cycle, the refrigerant cycle process is: compressor 16 → oil separator 25 → water cooler 26 → four-way reversing valve 27 → condenser 19 → reheater 23 → Check valve 38 → Dry filter 28 → Expansion restrictor 29 → Reservoir 36 → Expansion throttle 31 → Dry filter 32 → Evaporator 6 → Four-way selector valve 27 → Gas-liquid separator 33 → Compression Machine 16; When the system performs a heating cycle, the refrigerant cycle is: compressor 16 → oil separator 25 → water cooler 26 → four-way switching valve 27 → evaporator 6 → drying filter 32 → expansion throttle 31 → reservoir 30 → expansion throttle 29 → drying filter 28 → condenser 19→ four-way reversing valve 27→ gas-liquid separator 33→ Compressor 16 .
当 制冷循环时,高温高压制冷剂在 冷凝器19中被室内排风和室外新风第一次冷凝,带走一部分冷凝热,然后进入再热器23中被第二次冷凝,从而完成全部冷凝过程,该过程由自动控制系统精确控制完成。在这个过程中,再热器23与冷凝器19和蒸发器6是串联关系 。 室内回风和室外新风被蒸发器6降温除湿后,被再热器23再热到送风温度,所需的热量为 热泵系统排放的冷凝热,而不需要额外增加热量, 室内排风用于冷却冷凝器19,其中的冷量被回收利用,实现了节能的目的。 When the refrigeration cycle, the high temperature and high pressure refrigerant is The condenser 19 is condensed by the indoor exhaust air and the outdoor fresh air for the first time, takes away a part of the heat of condensation, and then enters the reheater 23 for the second condensation, thereby completing the entire condensation process, which is precisely controlled by the automatic control system. . In this process, the reheater 23 is in series with the condenser 19 and the evaporator 6. . After the indoor return air and the outdoor fresh air are cooled and dehumidified by the evaporator 6, the reheater 23 is reheated to the supply air temperature, and the required heat is the heat of condensation discharged from the heat pump system without additional heat. The indoor exhaust is used to cool the condenser 19, and the amount of cold therein is recycled, achieving energy saving.
当 制热循环时,蒸发器 6 转换成冷凝器用于加热空气,打开 膨胀节流器37,一部分制冷剂节流为低温制冷剂,在储液器36中与温度较高的液态制冷剂热交换,蒸发吸热,温度得到提升。然后, 打开电磁阀 34 , 一部分制冷剂进入带有中间接口的涡旋压缩机16内,进行增气补焓; 打开电磁阀 35 , 一部分温度较高的制冷剂进入气液分离器33中,提高了压缩机16的吸气温度,改善了运行工况, 热泵系统冬季 制热效率也有所提高。 When the heating cycle is repeated, the evaporator 6 is converted into a condenser for heating the air, opening The expansion restrictor 37, a part of the refrigerant is throttled as a low-temperature refrigerant, and is exchanged with the liquid refrigerant having a relatively high temperature in the accumulator 36 to evaporate and absorb heat, and the temperature is increased. Then, open the solenoid valve 34, A part of the refrigerant enters the scroll compressor 16 with the intermediate interface to perform the air-filling compensation; the electromagnetic valve 35 is opened. A portion of the higher temperature refrigerant enters the gas-liquid separator 33, which improves the suction temperature of the compressor 16, improves the operating conditions, and improves the heating efficiency of the heat pump system in winter.
图 8 是另一种 再热型热泵热回收空调机组的 热泵系统图,阀门 41 、 43 、 44 、 45 可采用电磁阀或电动调节阀。 当系统进行再热 制冷循环时,阀门 41 、 44 、 膨胀节流器29关闭,其余打开,膨胀节流器31起节流作用, 制冷剂循环过程是:压缩机 16 →油分离器25→四通换向阀27→冷凝器19→干燥过滤器28→膨胀节流器40→再热器23→ 阀门 43 →储液器30→膨胀节流器31→干燥过滤器32→蒸发器6→ 阀门 45 →四通换向阀27→气液分离器33→ 压缩机 16 。 Figure 8 is a heat pump system diagram of another reheat heat pump heat recovery air conditioning unit, valves 41, 43, 44, 45 A solenoid valve or an electric control valve can be used. When the system performs a reheat refrigeration cycle, the valves 41, 44, the expansion throttle 29 are closed, and the rest are opened, and the expansion throttle 31 is throttled. The refrigerant circulation process is: compressor 16 → oil separator 25 → four-way switching valve 27 → condenser 19 → drying filter 28 → expansion throttle 40 → reheater 23 → valve 43 → reservoir 30 → expansion restrictor 31 → drying filter 32 → evaporator 6 → valve 45 → four-way switching valve 27 → gas-liquid separator 33 → compressor 16 .
当系统进行 制热循环时,阀门 45 、 膨胀节流器29、31打开,其余关闭,膨胀节流器29起节流作用, 制冷剂循环过程是:压缩机 16 →油分离器25→四通换向阀27→ 阀门 45 →蒸发器6→干燥过滤器32→膨胀节流器31→储液器30→膨胀节流器29→干燥过滤器28→冷凝器19→四通换向阀27→气液分离器33→ 压缩机 16 ,当阀门 43 、 45 、 膨胀节流器40关闭, 阀门 41 、 44 打开,再热器23也可作为冷凝器加热空气,与蒸发器6互为备用 。 When the system performs the heating cycle, the valve 45, the expansion restrictor 29, 31 are opened, the rest are closed, and the expansion throttle 29 is throttled. The refrigerant circulation process is: compressor 16 → oil separator 25 → four-way reversing valve 27 → valve 45 →Evaporator 6→Drying filter 32→Expansion restrictor 31→Accumulator 30→Expansion restrictor 29→Drying filter 28→Condenser 19→Four-way reversing valve 27→Gas-liquid separator 33→Compression Machine 16, when the valve 43, 45, the expansion throttle 40 is closed, the valves 41, 44 are opened, and the reheater 23 can also be used as a condenser to heat the air, and the evaporator 6 is used alternately.
当 系统进行非再热 制冷循环时,阀门 44 、 45 、 膨胀节流器29、31、40打开, 阀门 41 、 43 关闭,膨胀节流器31、40起节流作用, 制冷剂循环过程是:压缩机 16 →油分离器25→四通换向阀27→冷凝器19→干燥过滤器28,在此分两路,一路→膨胀节流器40→再热器23→ 阀门 44 ,另一路 →膨胀节流器29→储液器30→膨胀节流器31→干燥过滤器32→蒸发器6→ 阀门 45 ,两路在此汇合 →四通换向阀27→气液分离器33→ 压缩机 16 , 再热器23转换为蒸发器,系统形成了两个蒸发器,具有双冷源,再热器23与蒸发器6转换成并联关系,通过调节膨胀节流器29、31、40和 阀门 44 、 45 的开度等手段,保证 蒸发器6的蒸发温度为6℃左右,再热器23的蒸发温度为16℃左右,可用蒸发器6对新风进行降温除湿,用再热器23对室内回风进行干式降温,从而实现了对空气的温湿度的独立控制处理。 When the system performs a non-reheat refrigeration cycle, valves 44, 45, expansion restrictors 29, 31, 40 open, valve 41 , 43 is closed, the expansion restrictors 31, 40 are throttled, and the refrigerant circulation process is: compressor 16 → oil separator 25 → four-way switching valve 27 → condenser 19 → drying filter 28, here two-way, one way → expansion throttle 40 → reheater 23 → valve 44, another way →Expansion restrictor 29→Accumulator 30→Expansion restrictor 31→Drying filter 32→Evaporator 6→Valve 45, where the two channels merge → Four-way reversing valve 27→Gas-liquid separator 33→ Compression Machine 16, The reheater 23 is converted into an evaporator, the system forms two evaporators, has a dual cold source, and the reheater 23 and the evaporator 6 are converted into a parallel relationship by adjusting the expansion restrictors 29, 31, 40 and the valve 44, 45 Opening degree and other means The evaporation temperature of the evaporator 6 is about 6 ° C, and the evaporation temperature of the reheater 23 is about 16 ° C. The fresh air can be cooled and dehumidified by the evaporator 6, and the indoor return air is dry-cooled by the reheater 23, thereby realizing Independent control of the temperature and humidity of the air.
图 9 也是一种 再热型热泵热回收空调机组的 热泵系统图, 当系统进行再热 制冷循环时,阀门 44 关闭,其余打开,膨胀节流器31起节流作用, 制冷剂循环过程是:压缩机 16 →油分离器25→四通换向阀27,在此分两路,一路→ 电动调节阀 48 →冷凝器19→干燥过滤器28→膨胀节流器29, 另一路 → 电动调节阀 49 →再热器23→干燥过滤器47→膨胀节流器40, 两路在此汇合 →储液器46→膨胀节流器31→干燥过滤器32→蒸发器6→ 阀门 45 →四通换向阀27→气液分离器33→ 压缩机 16 ,在此过程中, 冷凝器19与再热器23都是冷凝器,属于并联关系 。 Figure 9 is also a heat pump system diagram of a reheat heat pump heat recovery air conditioning unit. When the system performs a reheat refrigeration cycle, the valve 44 Closed, the rest is opened, the expansion restrictor 31 acts as a throttling, and the refrigerant circulation process is: compressor 16 → oil separator 25 → four-way reversing valve 27, here two-way, one way → electric regulating valve 48 →Condenser 19→Drying filter 28→Expansion restrictor 29, the other way → Electric regulating valve 49 → Reheater 23 → Drying filter 47 → Expansion restrictor 40, the two roads meet here → reservoir 46 → expansion restrictor 31 → drying filter 32 → evaporator 6 → valve 45 → four-way switching valve 27 → gas-liquid separator 33 → compressor 16 , in the process, Both the condenser 19 and the reheater 23 are condensers and are in a parallel relationship.
当系统进行 制热循环时,阀门 44 、 45 、 膨胀节流器29、31、40、 电动调节阀 48 打开, 电动调节阀 49 关闭,膨胀节流器29起节流作用,再热器23、蒸发器6转换为冷凝器加热空气,形成并联关系, 制冷剂循环过程是:压缩机 16 →油分离器25→四通换向阀27,在此分两路,一路→ 阀门 45 →蒸发器6→干燥过滤器32→膨胀节流器31→储液器46, 另一路 → 阀门 44 →再热器23→干燥过滤器47→膨胀节流器40, 两路在此汇合 →膨胀节流器29→干燥过滤器28→冷凝器19→ 电动调节阀 48 →四通换向阀27→气液分离器33→ 压缩机 16 。当阀门 44 打开、 45 关闭 ,再热器23作为冷凝器单独加热空气,蒸发器6不工作;当 阀门 45 打开、 44 关闭 ,蒸发器6作为冷凝器单独加热空气,再热器23不工作 。在冬季制热循环时,打开 膨胀节流器37、 电磁阀 34 、 35 ,在 储液器46中的闪发蒸汽进入带有中间接口的涡旋压缩机16内,进行增气补焓 , 也可以进入气液分离器33中,提高了压缩机16的吸气温度,改善了运行工况, 热泵系统冬季 制热效率也有所提高。 When the system performs a heating cycle, the valves 44, 45, the expansion restrictors 29, 31, 40, and the electric regulating valve 48 are opened. The electric regulating valve 49 is closed, the expansion restrictor 29 is throttled, and the reheater 23 and the evaporator 6 are converted into a condenser to heat the air to form a parallel relationship. The refrigerant circulation process is: the compressor 16 → Oil separator 25 → four-way reversing valve 27, here two-way, one way → valve 45 → evaporator 6 → drying filter 32 → expansion throttle 31 → accumulator 46, another way → valve 44 → Reheater 23 → Drying Filter 47 → Expansion Tractor 40, where the two channels meet → Expansion damper 29 → Drying filter 28 → Condenser 19 → Electric regulating valve 48 → Four-way selector valve 27 → gas-liquid separator 33 → compressor 16 . When the valve 44 is opened and 45 is closed, the reheater 23 acts as a condenser to separately heat the air, and the evaporator 6 does not operate; when the valve 45 Open, 44 closed, evaporator 6 as a condenser to separately heat the air, reheater 23 does not work. During the winter heating cycle, the expansion throttle 37, the solenoid valves 34, 35 are opened, The flash steam in the accumulator 46 enters the scroll compressor 16 with the intermediate port to perform the aeration supplement, and may also enter the gas-liquid separator 33, thereby improving the suction temperature of the compressor 16, and improving the temperature. Operating conditions, The heat pump system has also improved heating efficiency in winter.
当 系统进行非再热 制冷循环时,电动调节阀 49 关闭,其余打开,膨胀节流器31、40起节流作用, 制冷剂循环过程是这样的:压缩机 16 →油分离器25→四通换向阀27→ 电动调节阀 48 →冷凝器19→干燥过滤器28→膨胀节流器29,在此分两路,一路→膨胀节流器40→干燥过滤器47→再热器23→ 阀门 44 ,另一路 →储液器46→膨胀节流器31→干燥过滤器32→蒸发器6→ 阀门 45 ,两路在此汇合 →四通换向阀27→气液分离器33→ 压缩机 16 , 再热器23转化为蒸发器,系统形成了两个蒸发器,具有双冷源,可用蒸发器6对新风进行降温除湿,用再热器23对室内回风或者室内回风与降温除湿后的室外新风的混合风进行干式降温,从而实现了对空气的温湿度的独立控制处理。 When the system performs a non-reheating refrigeration cycle, the electric regulating valve 49 is closed, and the rest is opened, and the expansion restrictors 31, 40 are throttled. The refrigerant circulation process is as follows: compressor 16 → oil separator 25 → four-way reversing valve 27 → electric regulating valve 48 →Condenser 19→Drying filter 28→Expansion restrictor 29, here two-way, one way→Expansion restrictor 40→Drying filter 47→Reheater 23→Valve 44, another way → reservoir 46 → expansion restrictor 31 → drying filter 32 → evaporator 6 → valve 45, where the two channels meet → four-way switching valve 27 → gas-liquid separator 33 → compressor 16 The reheater 23 is converted into an evaporator, the system forms two evaporators, has a double cold source, can be cooled and dehumidified by the evaporator 6 for fresh air, and is re-heated by the reheater 23 for indoor return air or indoor return air and cooling and dehumidification. The outdoor mixed air of the fresh air is dry-cooled, thereby achieving independent control of the temperature and humidity of the air.
图10 热泵系统中带有两个蒸发器 6 、 51 ,两者并联在系统中,也可称为并联 双冷源热泵 热回收空调机组, 当进行 制冷循环时,它可以 实现对空气的温湿度独立控制处理, 制冷剂循环过程是:压缩机 16 →油分离器25→四通换向阀27→冷凝器19→干燥过滤器28→膨胀节流器29,在此分两路,一路→ 阀门 50 → 蒸发器 51 → 阀门 44 , 另一路 →储液器30→膨胀节流器31→干燥过滤器32→蒸发器6→ 阀门 45 , 两路在此汇合 →四通换向阀27→气液分离器33→ 压缩机 16 。高温高压液态制冷剂先经过 膨胀节流器29的第一次节流,变成蒸发温度为16℃左右的低温低压液态制冷剂,一部分流入蒸发器51,一部分被膨胀节流器31二次深度节流,变成蒸发温度为6℃左右的低温低压液态制冷剂,进入蒸发器6中,对室外高温高湿空气进行降温除湿,然后直接送入空调房间,或者与室内回风混合后,再经过蒸发器51的降温处理,再送入空调房间。蒸发温度为16℃左右的低温低压液态制冷剂流经蒸发器51,处理室内回风、或者室内回风与降温除湿后的室外新风的混合风,仅做降温处理,而不做除湿处理,最后送入空调房间。 Figure 10 The heat pump system has two evaporators 6, 51, which are connected in parallel in the system. It can also be called parallel double-cooled source heat pump. The heat recovery air conditioning unit can realize the independent control of the temperature and humidity of the air when the refrigeration cycle is performed. The refrigerant circulation process is: the compressor 16 → oil separator 25 → four-way switching valve 27 → condenser 19 → drying filter 28 → expansion throttle 29, here two-way, one way → valve 50 → evaporator 51 → valve 44, another way → Reservoir 30 → Expansion damper 31 → Drying filter 32 → Evaporator 6 → Valve 45, where the two channels meet → Four-way directional control valve 27 → Gas-liquid separator 33 → Compressor 16 . High temperature and high pressure liquid refrigerant first passed The first throttling of the expansion restrictor 29 becomes a low-temperature low-pressure liquid refrigerant having an evaporation temperature of about 16 ° C, a part of which flows into the evaporator 51, and a part of which is throttled by the expansion throttle 31 to become an evaporation temperature. The low-temperature low-pressure liquid refrigerant of about 6 °C enters the evaporator 6, and cools and dehumidifies the outdoor high-temperature and high-humidity air, and then directly sends it into the air-conditioned room, or mixes with the indoor return air, and then cools down through the evaporator 51. And then sent to the air-conditioned room. The low-temperature low-pressure liquid refrigerant with an evaporation temperature of about 16 °C flows through the evaporator 51 to treat the indoor air returning, or the indoor mixed air of the indoor return air and the cooling and dehumidification, and only performs the cooling treatment without dehumidification treatment, and finally Transfer to an air-conditioned room.
当系统进行 制热循环时, 膨胀节流器29起节流作用, 蒸发器 6 、 51 转换为冷凝器加热空气,两者可以同时工作,或者分别单独工作。 When the system performs a heating cycle, the expansion restrictor 29 acts as a throttle, and the evaporators 6, 51 Converted to a condenser to heat the air, both can work at the same time, or work separately.
图11也是一种 并联 双冷源热泵 热回收空调机组。 膨胀节流器31为 蒸发器 6 提供蒸发温度为6℃左右的低温低压液态制冷剂,对室外高温高湿空气进行降温除湿;膨胀节流器40为 蒸发器 51 提供蒸发温度为16℃左右的低温低压液态制冷剂,对室内回风、或者室内回风与降温除湿后的室外新风的混合风仅做降温处理,而不做除湿处理,从而实现了对空气的温湿度的独立控制处理。 Figure 11 is also a parallel double cold source heat pump heat recovery air conditioning unit. The expansion restrictor 31 is an evaporator 6 A low-temperature low-pressure liquid refrigerant having an evaporation temperature of about 6 ° C is provided to cool and dehumidify the outdoor high-temperature and high-humidity air; the expansion throttle 40 is an evaporator 51 Providing a low-temperature low-pressure liquid refrigerant with an evaporation temperature of about 16 ° C, and only performing a cooling treatment on the indoor return air, or the indoor mixed air after the indoor return air and the cooling and dehumidification, without performing dehumidification treatment, thereby realizing the air Independent control of temperature and humidity.
图12 热泵系统与 图10相类似 ,但由于增加了单向阀,当 温湿度独立控制时,膨胀节流器29的节流效果更好。 Figure 12 The heat pump system is similar to Figure 10, but due to the addition of the check valve, When the temperature and humidity are independently controlled, the expansion throttle 29 has a better throttling effect.
图13 热泵系统中,两个蒸发器 6 、 57 是串联关系,也可称为串联 双冷源热泵 热回收空调机组。 当系统进行 制冷循环时, 膨胀节流器31起节流作用, 制冷剂循环过程是:压缩机 16 →油分离器25→四通换向阀27→冷凝器19→干燥过滤器28→膨胀节流器29→储液器30→膨胀节流器31→干燥过滤器32→蒸发器6→蒸发器57→四通换向阀27→气液分离器33→ 压缩机 16 , 膨胀节流器31为 蒸发器 6 提供蒸发温度为6℃左右的低温低压液态制冷剂,对室外高温高湿空气进行降温除湿,然后制冷剂变成16℃左右的气液混合体,进入 蒸发器 57 中,二次蒸发, 对室内回风、或者室内回风与降温除湿后的室外新风的混合风进行干式降温处理,因此这种双冷源串联分程控制的方式,也可以实现温湿度独立控制 ; 当系统进行 制热循环时, 膨胀节流器29起节流作用, 两个蒸发器 6 、 57 转换成冷凝器,制冷剂循环过程是:压缩机 16 →油分离器25→四通换向阀27→蒸发器57→蒸发器6→干燥过滤器32→膨胀节流器31→储液器30→膨胀节流器29→干燥过滤器28→冷凝器19→四通换向阀27→气液分离器33→ 压缩机 16 ,室外冷空气先被 蒸发器6加热,与室内回风混合后再被蒸发器57二次加热 。 In the heat pump system, the two evaporators 6, 57 are in series relationship, which can also be called a series double cold source heat pump heat recovery air conditioning unit. When the system performs a refrigeration cycle, the expansion restrictor 31 acts as a throttling, and the refrigerant cycle process is: compressor 16 → Oil separator 25 → Four-way switching valve 27 → Condenser 19 → Drying filter 28 → Expansion restrictor 29 → Reservoir 30 → Expansion throttle 31 → Drying filter 32 → Evaporator 6 → Evaporator 57→ four-way reversing valve 27→ gas-liquid separator 33→ The compressor 16 and the expansion throttle 31 are evaporators 6 A low-temperature low-pressure liquid refrigerant with an evaporation temperature of about 6 ° C is provided, and the outdoor high-temperature and high-humidity air is cooled and dehumidified, and then the refrigerant becomes a gas-liquid mixture of about 16 ° C, enters the evaporator 57, and is secondarily evaporated. The indoor air return, or the indoor return air and the outdoor fresh air mixed air after the cooling and dehumidification are dry-cooled, so the double cold source serial split control mode can also achieve independent control of temperature and humidity; During the heating cycle, the expansion throttle 29 is throttled, the two evaporators 6, 57 are converted into condensers, and the refrigerant cycle is: compressor 16 → Oil separator 25 → Four-way switching valve 27 → Evaporator 57 → Evaporator 6 → Drying filter 32 → Expansion restrictor 31 → Reservoir 30 → Expansion throttle 29 → Drying filter 28 → Condenser 19→ four-way reversing valve 27→ gas-liquid separator 33→ Compressor 16, the outdoor cold air is first heated by the evaporator 6, mixed with the indoor return air, and then reheated by the evaporator 57.
图14也是 串联 双冷源热泵 热回收空调机组,但与 图13有所不同,单向膨胀节流器29换成了双向膨胀节流器58。当系统进行 制冷循环时,制冷剂循环过程是:压缩机 16 →油分离器25→四通换向阀27→冷凝器19→干燥过滤器28→膨胀节流器58→干燥过滤器28→蒸发器57→干燥过滤器32→膨胀节流器31→干燥过滤器32→蒸发器6→四通换向阀27→气液分离器33→ 压缩机 16 , 膨胀节流器58为 蒸发器 57 提供蒸发温度为16℃左右的低温低压液态制冷剂,对室内回风、或者室内回风与降温除湿后的室外新风的混合风进行干式降温处理,一部分液态制冷剂吸热蒸发,然后制冷剂变成16℃左右的气液混合体,再经过膨胀节流器31的二次深度节流,变成蒸发温度为6℃左右的低温低压液态制冷剂,进入 蒸发器 6 中,二次蒸发, 对室外高温高湿空气进行降温除湿,也可以实现温湿度独立控制 ; 当系统进行 制热循环时, 膨胀节流器58起节流作用,膨胀节流器31全开, 两个蒸发器 6 、 57 转换成冷凝器,制冷剂循环过程是:压缩机 16 →油分离器25→四通换向阀27→蒸发器6→干燥过滤器32→膨胀节流器31→干燥过滤器32→蒸发器57→干燥过滤器28→膨胀节流器58→干燥过滤器28→冷凝器19→四通换向阀27→气液分离器33→ 压缩机 16 ,室外冷空气先被 蒸发器6加热,与室内回风混合后再被蒸发器57二次加热 。当 双向膨胀节流器58换成单向膨胀节流器时,应设两个单向膨胀节流器,安装时,节流方向应相反。 Figure 14 is also a series of dual cold source heat pump heat recovery air conditioning units, but with Different from Fig. 13, the one-way expansion restrictor 29 is replaced with a two-way expansion throttle 58. When the system performs a refrigeration cycle, the refrigerant cycle is: compressor 16 → Oil separator 25 → Four-way switching valve 27 → Condenser 19 → Drying filter 28 → Expansion restrictor 58 → Drying filter 28 → Evaporator 57 → Drying filter 32 → Expansion restrictor 31 → Drying filtration 32 → evaporator 6 → four-way reversing valve 27 → gas-liquid separator 33 → The compressor 16 and the expansion restrictor 58 are evaporators 57 Providing a low-temperature low-pressure liquid refrigerant with an evaporation temperature of about 16 ° C, and performing dry cooling treatment on the indoor return air, or the indoor fresh air mixed air after cooling and dehumidification, a part of the liquid refrigerant absorbs heat and evaporates, and then the refrigerant It becomes a gas-liquid mixture of about 16 ° C, and then passes through the secondary depth throttling of the expansion restrictor 31 to become a low-temperature low-pressure liquid refrigerant having an evaporation temperature of about 6 ° C. In the evaporator 6, secondary evaporation, cooling and dehumidifying the outdoor high temperature and high humidity air, can also achieve independent control of temperature and humidity; when the system performs heating cycle, The expansion restrictor 58 acts as a throttle, the expansion throttle 31 is fully open, the two evaporators 6, 57 are converted into a condenser, and the refrigerant cycle is: compressor 16 → oil separator 25 → four-way switching valve 27 → evaporator 6 → drying filter 32 → expansion throttle 31 → drying filter 32 → evaporator 57 → drying filter 28 → expansion throttle 58 → dry filtration 28 → condenser 19 → four-way switching valve 27 → gas-liquid separator 33 → Compressor 16, the outdoor cold air is first heated by the evaporator 6, mixed with the indoor return air, and then reheated by the evaporator 57. when When the two-way expansion restrictor 58 is replaced with a one-way expansion throttle, two unidirectional expansion throttles shall be provided, and the throttle direction shall be reversed during installation.
图15所示的 热泵系统中, 膨胀节流器58为双向膨胀节流器,它取代了图13中的单向膨胀节流器29、31,储液器59采用 气缸式或隔膜式 储液器,它取代了图13中的储液器30、干燥过滤器28、32,系统的功能与图13的系统完全相同,但制冷系统得到简化。 气缸式、隔膜式 储液器的构造图见图17、18。 In the heat pump system shown in Figure 15, The expansion restrictor 58 is a bi-directional expansion restrictor which replaces the one-way expansion restrictor 29, 31 of Fig. 13, and the accumulator 59 is of a cylinder type or a diaphragm type. The accumulator, which replaces the accumulator 30 and the desiccant filters 28, 32 in Fig. 13, has the same function as the system of Fig. 13, but the refrigeration system is simplified. Cylinder type, diaphragm type The construction of the reservoir is shown in Figures 17 and 18.
图16所示 热泵系统的功能与 图8相同,由于采用双向膨胀节流器58、 气缸式或隔膜式 储液器59,系统得到简化。 The function of the heat pump system shown in Figure 16 is the same as that of Figure 8, due to the use of a bi-directional expansion restrictor 58, cylinder or diaphragm. With the reservoir 59, the system is simplified.
图 17 是气缸式储液器构造图,该储液器是由气缸外壳 62 、活塞 63 、气缸端盖 66 、 73 、 干燥过滤器68、71、 制冷剂循环管 67 、 69 、 70 、 72 等组成,它装在蒸发器、冷凝器之间的制冷剂循环管路上,制冷剂循环管 67 、 72 分别与 蒸发器、冷凝器 相连, 制冷剂循环管 69 、 70 分别 与双向膨胀节流器相连,制冷剂循环管 67 、 69 和 70 、 72 分别接在气缸端盖 66 、 73 上,与气缸相通,管口接近气缸端盖的底部。在气缸端盖 66 、 73 中装有 干燥过滤器68、71,它是由干燥剂和过滤器组成,干燥剂可采用分子筛等,过滤器可采用过滤网等,用于过滤制冷剂中的杂质和水分。 活塞 63 可以在气缸内滑动,假设系统进行制冷循环时,来自冷凝器的高压液态制冷剂通过制冷剂循环管 72 进入气缸端盖 73 ,被 干燥过滤器71处理后 进入气缸,一部分多余的高压液态制冷剂储存在气缸内,一部分又通过制冷剂循环管 70 进入到双向膨胀节流器,被节流为低压液态制冷剂,通过制冷剂循环管 69 ,从气缸端盖 66 流回到气缸,最后通过 干燥过滤器68、 制冷剂循环管 67 又流出气缸,进蒸发器中。由于气缸内一端是高压液态制冷剂,另一端是低压液态制冷剂,在活塞 63 两侧形成压差,从而推动活塞 63 从高压端向低压端移动,图中是从右向左移动,顶到气缸端盖 66 时为止。这样在活塞 63 右侧与气缸端盖 73 之间形成一个较大的腔体空间,保证多余的高压液态制冷剂储存其中。活塞 63 带有微细的节流孔管 64 ,微量的高压液态制冷剂可从节流孔管 64 节流到低压侧,也有微量的高压液态制冷剂从活塞 63 与气缸壁之间的配合间隙中节流到低压侧。节流孔管 64 两端可带有向下弯曲的小管,它伸入到液面以下,保证底部的液态制冷剂被节流,在活塞 63 中有保温层 65 ,可减少传热。当系统进行制热循环时,制冷剂反向流动,活塞 63 的左侧变为高压侧,右侧变为低压侧,其被推向右端,顶到气缸端盖 73 时为止,多余的高压液态制冷剂储存在活塞 63 左侧的气缸内。 Figure 17 is a structural view of a cylinder type reservoir, which is composed of a cylinder casing 62, a piston 63, cylinder end caps 66, 73, The drying filter 68, 71, the refrigerant circulation pipes 67, 69, 70, 72, etc. are installed in the refrigerant circulation line between the evaporator and the condenser, and the refrigerant circulation pipes 67, 72 Connected to the evaporator and the condenser respectively, the refrigerant circulation pipes 69 and 70 are respectively connected to the bidirectional expansion restrictor, and the refrigerant circulation pipes 67, 69 and 70, 72 are respectively connected to the cylinder end caps. On the 66, 73, the cylinder is connected, and the nozzle is close to the bottom of the cylinder end cover. Installed in the cylinder end caps 66, 73 The drying filter 68, 71 is composed of a desiccant and a filter, and the desiccant may be a molecular sieve or the like, and the filter may be a filter or the like for filtering impurities and moisture in the refrigerant. Piston 63 It is possible to slide in the cylinder. When the system performs the refrigeration cycle, the high-pressure liquid refrigerant from the condenser enters the cylinder end cap 73 through the refrigerant circulation pipe 72, and is treated by the drying filter 71. Into the cylinder, a part of the excess high-pressure liquid refrigerant is stored in the cylinder, and a part is again introduced into the bi-directional expansion restrictor through the refrigerant circulation pipe 70, and is throttled into a low-pressure liquid refrigerant through the refrigerant circulation pipe. From the cylinder end cap 66 back to the cylinder, and finally through the drying filter 68, the refrigerant circulation pipe 67 It flows out of the cylinder and enters the evaporator. Since one end of the cylinder is a high-pressure liquid refrigerant, and the other end is a low-pressure liquid refrigerant, a pressure difference is formed on both sides of the piston 63, thereby pushing the piston 63. Moving from the high pressure end to the low pressure end, the figure moves from right to left, up to the cylinder end cap 66. Thus on the right side of the piston 63 and the cylinder end cap 73 A large cavity space is formed between them to ensure that excess high-pressure liquid refrigerant is stored therein. Piston 63 with a fine orifice tube 64, a small amount of high pressure liquid refrigerant from the orifice tube 64 Throttle to the low pressure side, and a small amount of high pressure liquid refrigerant is throttled from the fitting gap between the piston 63 and the cylinder wall to the low pressure side. Orifice tube 64 The ends may have a downwardly curved small tube which extends below the liquid level to ensure that the liquid refrigerant at the bottom is throttled and has an insulating layer in the piston 63. Can reduce heat transfer. When the system performs the heating cycle, the refrigerant flows in the reverse direction, the left side of the piston 63 becomes the high pressure side, and the right side becomes the low pressure side, which is pushed to the right end, to the cylinder end cover 73. The excess high pressure liquid refrigerant is then stored in the cylinder on the left side of the piston 63.
图 18 是隔膜式储液器构造图,它是由罐体 74 、隔膜 75 、 干燥过滤器68、71、 制冷剂循环管 67 、 69 、 70 、 72 等组成。它在制冷系统中的连接方法与图 16 中的气缸式储液器相同。隔膜 75 是高强度、不渗漏的弹性或柔性材料,它位于罐体 74 的中央,将其分隔成左右两个独立的空间。当系统停机、压力平衡时,隔膜 75 处于任意形状的松弛状态。在罐体 74 的下部连接有制冷剂循环管 67 、 69 、 70 、 72 和 干燥过滤器68、71 ,制冷剂循环管 67 、 69 与隔膜 75 左侧空间相连通,制冷剂循环管 70 、 72 与隔膜 75 右侧空间相连通,节流孔管 64 将隔膜 75 两侧空间相连通。当制冷剂循环管 70 、 72 接高压端时,高压液态制冷剂通过制冷剂循环管 72 进入,被 干燥过滤器71处理后 进入罐体 74 ,一部分多余的高压液态制冷剂储存其内,一部分又通过制冷剂循环管 70 进入到双向膨胀节流器,被节流为低压液态制冷剂,通过制冷剂循环管 69 流回罐内,最后通过 干燥过滤器68、 制冷剂循环管 67 又流出气缸,进蒸发器中。由于右侧是高压液态制冷剂,左侧是低压液态制冷剂,在隔膜 75 两侧形成压差,隔膜 75 向左伸展或膨胀,紧贴罐体 74 的内壁,在右侧形成较大的空间,高压液态制冷剂在其中流通循环,多余的部分储存其中;反之,制冷剂反向流动,隔膜 75 向右膨胀。格栅 76 可阻止隔膜 75 向下伸展,防止堵塞制冷剂循环管管口。 Figure 18 is a structural view of a diaphragm type reservoir, which is composed of a tank body 74, a diaphragm 75, a drying filter 68, 71, and a refrigerant circulation pipe. 67, 69, 70, 72, etc. It is connected in the same way as the cylinder type reservoir in Figure 16 in the refrigeration system. The diaphragm 75 is a high-strength, non-leaking elastic or flexible material that is located in the tank At the center of 74, divide it into two separate spaces. When the system is shut down and the pressure is balanced, the diaphragm 75 is in a relaxed state of any shape. A refrigerant circulation pipe 67, 69 is connected to the lower portion of the tank 74. , 70 , 72 and drying filters 68 , 71 , the refrigerant circulation pipes 67 , 69 are connected to the left space of the diaphragm 75 , and the refrigerant circulation pipes 70 , 72 and the diaphragm 75 . The space on the right side is connected, and the orifice tube 64 connects the spaces on both sides of the diaphragm 75. When the refrigerant circulation pipes 70, 72 are connected to the high pressure end, the high pressure liquid refrigerant enters through the refrigerant circulation pipe 72, and is After the drying filter 71 is processed, it enters the tank 74, and a part of the excess high-pressure liquid refrigerant is stored therein, and a part passes through the refrigerant circulation pipe. Entering the bi-directional expansion restrictor, it is throttled into a low-pressure liquid refrigerant, flows back into the tank through the refrigerant circulation pipe 69, and finally passes through the drying filter 68 and the refrigerant circulation pipe 67. It flows out of the cylinder and enters the evaporator. Since the right side is a high-pressure liquid refrigerant, the left side is a low-pressure liquid refrigerant, and a pressure difference is formed on both sides of the diaphragm 75, and the diaphragm 75 extends or expands to the left, closely adhering to the tank 74 The inner wall forms a large space on the right side, in which the high-pressure liquid refrigerant circulates, and the excess portion is stored therein; conversely, the refrigerant flows in the opposite direction, and the diaphragm 75 expands to the right. Grille 76 blocks diaphragm 75 Stretch downwards to prevent blockage of the refrigerant circulation pipe nozzle.
图 19 中储液器 79 通过电磁阀 80 、 81 跨接在双向膨胀节流阀 58 的两端,并位于其上方,位于 冷凝器19、蒸发器6的下方。 当进行制冷循环, 冷凝器19作为冷凝器时, 电磁阀 77 、 81 打开,其余关闭,电磁阀 77 接在 冷凝器19的进气口端,与 储液器 79 内制冷剂液面相连通,可以保证高压液态制冷剂依靠自身重力进出储液器 79 ,而不会发生液态制冷剂的闪发或汽化。当进行制热循环, 蒸发器6作为冷凝器时, 电磁阀 78 、 80 打开,其余关闭,电磁阀 78 接在 蒸发器6的进气口端,与 储液器 79 内制冷剂液面相连通,可以保证高压液态制冷剂依靠自身重力进出储液器 79 ,而不会发生液态制冷剂的闪发或汽化,如果电磁阀 78 关闭, 膨胀节流器37、 电磁阀 34 、 35 打开,可以利用储液器 79 产生的闪发蒸汽为压缩机 16 增气补焓和提高吸气温度,改善运行工况,提高 热泵系统冬季 制热效率。 储液器 79 可称为重力流储液器。 The accumulator 79 in Figure 19 is connected to the bi-directional expansion throttle valve via solenoid valves 80, 81. Both ends are located above it and are located below the condenser 19 and the evaporator 6. When the refrigeration cycle is performed, when the condenser 19 is used as a condenser, the solenoid valves 77, 81 are opened, and the rest are closed, and the solenoid valve 77 It is connected to the inlet end of the condenser 19 and communicates with the liquid level of the refrigerant in the accumulator 79 to ensure that the high-pressure liquid refrigerant enters and exits the accumulator by its own gravity. Without flashing or vaporization of the liquid refrigerant. When the heating cycle is performed, when the evaporator 6 is used as a condenser, the solenoid valves 78, 80 are opened, the rest are closed, and the solenoid valve 78 is connected. The inlet end of the evaporator 6 communicates with the liquid level of the refrigerant in the accumulator 79 to ensure that the high-pressure liquid refrigerant enters and exits the accumulator 79 by its own gravity without flashing or vaporizing the liquid refrigerant. If solenoid valve 78 Close, the expansion throttle 37, the solenoid valves 34, 35 are opened, and the flash steam generated by the accumulator 79 can be used to increase the air supply and improve the intake temperature of the compressor 16 to improve the operating conditions and improve the operating conditions. Heat pump system winter heating efficiency. The reservoir 79 can be referred to as a gravity flow reservoir.
图 20 是三管制多联 式 热泵热回收空调机组。图中一台排风箱 2 带有一台送风箱 1 、一台房间空调器 85 ,它可以带更多的机组。再热器 23 与蒸发器 6 并联在制冷系统上,当电磁阀 91 、 95 关闭、 90 、 94 打开,膨胀节流器 93 、 97 开启节流,再热器 23 、蒸发器 6 转换为蒸发器,用于冷却空气;当电磁阀 90 、 94 关闭、 91 、 95 打开,膨胀节流器 93 、 97 开启但不节流,再热器 23 、蒸发器 6 转换为冷凝器,用于加热空气;这样通过阀门切换、调整膨胀节流器的开度等手段,再热器 23 和蒸发器 6 都可以转换为干式蒸发器、或湿式蒸发器、或冷凝器,可对空气干式冷却、或降温除湿、或加热、或再热,因此送风箱 1 不仅能进行再热空气处理,也可以实现对空气的温湿度独立控制处理。 Figure 20 shows a three-control multi-connected heat pump heat recovery air conditioning unit. In the figure, a wind exhaust box 2 has a blower box 1 , a room air conditioner 85, it can bring more units. The reheater 23 is connected in parallel with the evaporator 6 on the refrigeration system. When the solenoid valves 91, 95 are closed, 90, 94 are opened, the expansion restrictors 93, 97 Throttle is turned on, reheater 23, evaporator 6 is converted to evaporator for cooling air; when solenoid valves 90, 94 are closed, 91, 95 are open, expansion restrictor 93, 97 Open but not throttled, the reheater 23, the evaporator 6 is converted into a condenser for heating the air; thus, by means of valve switching, adjusting the opening of the expansion throttle, etc., the reheater 23 and the evaporator 6 Can be converted to a dry evaporator, or a wet evaporator, or a condenser, dry air cooling, or dehumidification, or heating, or reheat, so the air box 1 Not only can reheat air treatment, but also independent control of temperature and humidity of air.
图 21 是两管制多联 式 热泵热回收空调机组,它与图 20 三管制多联 式 热泵热回收空调机组的功能相同,都可以通过阀门切换、调整膨胀节流器的开度等手段,对空气再热处理,或温湿度独立控制处理。 Figure 21 is a two-control multi-connected heat pump heat recovery air conditioning unit, which is combined with Figure 20 The functions of the heat pump heat recovery air conditioning unit are the same, and the air can be reheated or the temperature and humidity can be independently controlled by means of valve switching, adjusting the opening degree of the expansion throttle, and the like.
图 22 是多联式 再热型热泵热回收空调机组 ,它是在 图4、5、9的单体式再热型热泵热回收空调机组的基础上增加了多个 送风箱 1 、 排风箱2,使用范围和功能得到扩展。当一个 送风箱 1 中的再热器 23 、蒸发器 6 制热时,另一个送风箱 1 中的再热器 23 可以转换成蒸发器用于制冷,它也具备了三管制和两管制多联 式 热泵热回收空调机组能够同时既能制冷又可以制热的功能。 Figure 22 is a multi-reheat heat pump heat recovery air conditioning unit, which is in The single-type reheat heat pump heat recovery air conditioning unit of Figures 4, 5 and 9 has a plurality of air supply boxes 1 and a fan box 2, and the scope and function are expanded. When a reheater in a blower box 1 23 When the evaporator 6 is heating, the reheater 23 in the other blower box 1 can be converted into an evaporator for cooling, and it also has three-control and two-control multi-connection The heat pump heat recovery air conditioning unit can simultaneously cool and heat.
图 23 是多联式 双冷源热泵热回收空调机组 ,它是在 图10、11、12、13、14的单体式双冷源热泵热回收空调机组的基础上增加了多个 送风箱 1 、 排风箱2,使用范围和功能得到扩展。 Figure 23 is a multi-connected dual cold source heat pump heat recovery air conditioning unit, which is in The single-type double-cooled-source heat pump heat recovery air-conditioning unit of Figures 10, 11, 12, 13, and 14 is provided with a plurality of blower boxes 1 and a blower box 2, and the scope and function are expanded.
同样,图7、8、15、16的单体式热泵热回收空调机组也可以做成 多联式的。 Similarly, the single-unit heat pump heat recovery air conditioning units of Figures 7, 8, 15, and 16 can also be made multi-connected.
以上所述,仅是本发明的较佳实施办法而已,并非对本发明做任何形式上的限制。依据本发明的技术实质对以上实施办法所做的任何简单修改、等同变化及修饰,均属于本发明的保护范围。 The above description is only a preferred embodiment of the present invention and is not intended to limit the invention in any way. Any simple modifications, equivalent changes, and modifications made to the above embodiments in accordance with the technical spirit of the present invention are within the scope of the present invention.

Claims (10)

  1. 热回收空调机组,它是由送风箱、排风箱、制冷系统、配电控制系统组成,送风箱带有新风口、回风口、送风口、蒸发器、送风机、过滤器、附加功能段;排风箱带有进风口、新风口、排风口、冷凝器、排风机、过滤器、附加功能段;制冷系统是由压缩机、冷凝器、膨胀节流器、蒸发器、辅助装置、制冷剂循环管、制冷剂组成;配电控制系统是由配电设备和自动控制设备组成,其特征在于,新风口接室外空气,回风口接室内回风,送风口接室内空调系统送风管道,进风口接室内排风,排风口接室外空气,送风箱可以带回风口,也可以不带回风口;室外新风和室内回风被送风机吸入送风箱,经过过滤器、蒸发器、附加功能段的处理,达到设定的空调参数后,通过送风口送到空调区域;室外新风和室内排风被排风机吸入排风箱,经过过滤器、冷凝器、附加功能段的处理后,通过排风口排到室外;送风箱、排风箱是整体式的,或分段组合式的,送风箱与排风箱之间是密闭隔断的;制冷系统可以是热泵系统,也可以是单冷系统,它的蒸发器装在送风箱中,制冷时,用于冷却空气,制热时,转换成冷凝器,用于加热空气,它的冷凝器装在排风箱中,制冷时,冷凝热被室内排风和室外新风带走,制热时,转换成蒸发器,吸收室内排风和室外新风中的热量,因此,室内排风中的冷量和热量被回收,实现节能的目的;制冷系统的压缩机及辅助装置装在排风箱中,或装在送风箱中,也可装在送风箱、排风箱之外;配电控制系统的电控箱嵌入排风箱或送风箱中,或挂在送风箱、排风箱外面,或与送风箱、排风箱分体设置。 Heat recovery air conditioning unit, which is composed of air supply box, exhaust air box, refrigeration system and power distribution control system. The air supply box has fresh air outlet, return air outlet, air supply port, evaporator, blower, filter and additional functional sections. The exhaust box has an air inlet, a fresh air outlet, an air outlet, a condenser, an exhaust fan, a filter, and an additional functional section; the refrigeration system is a compressor, a condenser, an expansion throttle, an evaporator, an auxiliary device, Refrigerant circulation pipe and refrigerant composition; distribution control system is composed of power distribution equipment and automatic control equipment, which is characterized in that the fresh air outlet is connected to the outdoor air, the return air inlet is connected to the indoor return air, and the air supply port is connected to the indoor air conditioning system air supply duct. The air inlet is connected to the indoor air exhaust, the air outlet is connected to the outdoor air, the air supply box can be brought back to the air outlet, or the air return port can be omitted; the outdoor fresh air and the indoor return air are sucked into the air supply box by the blower, through the filter, the evaporator, The processing of the additional functional segment reaches the set air conditioning parameter and is sent to the air conditioning area through the air supply port; the outdoor fresh air and the indoor exhaust air are sucked into the exhaust air box by the exhaust fan, and pass through the filter and the condenser. After the additional functional sections are processed, they are discharged to the outside through the exhaust vent; the air supply box and the exhaust ventilator are integrated or segmented, and the air supply box and the exhaust box are sealed and closed; The system can be a heat pump system or a single cooling system. The evaporator is installed in the air supply box. When cooling, it is used to cool the air. When heating, it is converted into a condenser for heating the air. Its condenser Installed in the exhaust ventilator, when cooling, the condensing heat is taken away by the indoor exhaust and the outdoor fresh air. When heating, it is converted into an evaporator to absorb the heat in the indoor exhaust and the outdoor fresh air. Therefore, the indoor exhaust air is cold. The quantity and heat are recovered to achieve the purpose of energy saving; the compressor and auxiliary device of the refrigeration system are installed in the air exhaust box, or installed in the air supply box, and can also be installed outside the air supply box and the air exhaust box; The electric control box of the control system is embedded in the air exhaust box or the air supply box, or is hung outside the air supply box or the air exhaust box, or is arranged separately from the air supply box and the air exhaust box.
  2. 根据权利要求1所述的热回收空调机组,其特征在于,排风箱与送风箱的连接可以是整体式、分体式、多联式的,相应的,制冷系统也可以是整体式、分体式、多联式的,它们可以放在室内,也可以放在室外。The heat recovery air conditioning unit according to claim 1, wherein the connection between the air distribution box and the air supply box is integral, split, and multi-connected, and correspondingly, the refrigeration system may be integral and divided. In the form of multiples, they can be placed indoors or outdoors.
  3. 根据权利要求1所述的热回收空调机组,其特征在于,当制冷系统为单冷系统时,送风箱夏季送冷风,通过风阀的切换,排风箱可转化为送风箱,用于冬季送热风。The heat recovery air conditioning unit according to claim 1, wherein when the refrigeration system is a single cooling system, the air supply box sends cold air in the summer, and the air distribution box can be converted into a air supply box by using a switching of the air valve for Send hot air in winter.
  4. 根据权利要求1所述的热回收空调机组,其特征在于,双机型热泵热回收空调机组带有两套独立的制冷系统,其中一套是热泵系统,用于空气的冷却或加热,另一套是单冷或热泵系统,用于空气的再热、加热或冷却,或者两套独立的制冷系统都是单冷系统,其中一套用于空气的冷却,另一套用于空气的再热、加热或冷却,从而可以为空调提供多种冷热源组合,不仅能对空气进行冷却、再热或加热处理,也可以转换成双冷源,实现对空气的温湿度独立控制处理。The heat recovery air conditioning unit according to claim 1, wherein the dual-type heat pump heat recovery air conditioning unit has two independent refrigeration systems, one of which is a heat pump system for air cooling or heating, and the other The set is a single cold or heat pump system for reheating, heating or cooling of air, or two separate refrigeration systems are single cooling systems, one for air cooling and the other for air reheating and heating Or cooling, so that a variety of cold and heat source combinations can be provided for the air conditioner, which can not only cool, reheat or heat the air, but also convert into a double cold source to achieve independent control of the temperature and humidity of the air.
  5. 根据权利要求1所述的热回收空调机组,其特征在于,再热型热泵热回收空调机组带再热器,再热器与冷凝器、蒸发器并联或串联在制冷系统中,再热器也可以转换成蒸发器,不仅能对空气进行再热或加热处理,也可以转换成双冷源,实现对空气的温湿度独立控制处理,再热器与蒸发器两者可以同时工作,或者分别单独工作,该机组可以做成单体式或多联式。 The heat recovery air conditioning unit according to claim 1, wherein the reheat type heat pump heat recovery air conditioning unit has a reheater, and the reheater is connected in parallel or in series with the condenser and the evaporator, and the reheater is also It can be converted into an evaporator, which can not only reheat or heat the air, but also convert it into a double cold source to achieve independent control of the temperature and humidity of the air. The reheater and the evaporator can work simultaneously, or separately. Work, the unit can be made into a single or multiple.
  6. 根据权利要求1所述的热回收空调机组,其特征在于,双冷源热泵热回收空调机组带有两个蒸发器,两者并联或串联在制冷系统中,可以实现对空气的温湿度独立控制处理,这两个蒸发器也可以转换成冷凝器,用于加热空气,两者可以同时工作,或者分别单独工作,该机组可以做成单体式或多联式。The heat recovery air conditioning unit according to claim 1, wherein the double cold source heat pump heat recovery air conditioning unit has two evaporators, and the two are connected in parallel or in series in the refrigeration system to realize independent control of temperature and humidity of the air. Processing, the two evaporators can also be converted into a condenser for heating the air, the two can work at the same time, or work separately, the unit can be made into a single or multiple.
  7. 根据权利要求1所述的热回收空调机组,其特征在于,三管制和两管制多联式热泵热回收空调机组中,再热器与蒸发器并联在制冷系统上,再热器和蒸发器都可以可以转换成为干式蒸发器或湿式蒸发器或冷凝器,可以对空气进行干式冷却或降温除湿,或者加热处理,因此该机组不仅能进行再热空气处理,也可以实现对空气的温湿度独立控制处理。The heat recovery air conditioning unit according to claim 1, wherein in the three-control and two-control multi-connected heat pump heat recovery air conditioning unit, the reheater and the evaporator are connected in parallel to the refrigeration system, and the reheater and the evaporator are both It can be converted into a dry evaporator or a wet evaporator or a condenser. The air can be dry-cooled or cooled or dehumidified, or heated. Therefore, the unit can not only reheat the air but also achieve the temperature and humidity of the air. Independent control processing.
  8. 热回收空调机组,它是由送风箱、排风箱、制冷系统、配电控制系统组成,其中一种制冷系统带有可以储存液态制冷剂的气缸式储液器,其特征在于,气缸式储液器主要由气缸外壳、活塞、气缸端盖、干燥过滤器、制冷剂循环管组成,在气缸外壳两端的气缸端盖上带有制冷剂循环管和干燥过滤器,制冷剂通过制冷剂循环管进出气缸时,要经过干燥过滤器处理,活塞可以在气缸内移动,它从高压端移动到低压端,从而在气缸内形成储存高压液态制冷剂的空间,高压液态制冷剂一部分流向膨胀节流器,多余的部分储存其中,气缸式储液器连接在制冷系统的冷凝器与蒸发器之间的制冷剂循环管上,并与膨胀节流器相连,保证制冷剂的循环和节流。 The heat recovery air conditioning unit is composed of a blower box, a blower box, a refrigeration system and a power distribution control system, and one of the refrigeration systems has a cylinder type liquid storage device capable of storing liquid refrigerant, and is characterized in that the cylinder type The liquid storage device is mainly composed of a cylinder casing, a piston, a cylinder end cover, a drying filter and a refrigerant circulation pipe. The cylinder end cover at both ends of the cylinder casing is provided with a refrigerant circulation pipe and a drying filter, and the refrigerant passes through the refrigerant circulation. When the pipe enters and exits the cylinder, it is processed by the drying filter, and the piston can move in the cylinder. It moves from the high pressure end to the low pressure end, thereby forming a space for storing high-pressure liquid refrigerant in the cylinder, and a part of the high-pressure liquid refrigerant flows to the expansion throttle. The excess portion is stored therein, and the cylinder type reservoir is connected to the refrigerant circulation pipe between the condenser of the refrigeration system and the evaporator, and is connected to the expansion throttle to ensure circulation and throttling of the refrigerant.
  9. 热回收空调机组,它是由送风箱、排风箱、制冷系统、配电控制系统组成,其中一种制冷系统带有可以储存液态制冷剂的隔膜式储液器,其特征在于,隔膜式储液器主要由罐体、隔膜、干燥过滤器、制冷剂循环管组成,隔膜采用弹性或柔性材料,它位于罐体的中央,将其分隔成左右两个独立空间,在罐体的下部连接有制冷剂循环管和干燥过滤器,制冷剂通过制冷剂循环管进出罐体时,要经过干燥过滤器处理,制冷剂循环管与罐体隔膜两侧的空间相连通,当制冷剂循环管一侧接高压端、另一侧接低压端时,隔膜从高压侧向低压侧伸展或膨胀,在高压侧形成较大的储存高压液态制冷剂的空间,高压液态制冷剂一部分流向膨胀节流器,多余的部分储存其中,隔膜式储液器连接在制冷系统的冷凝器与蒸发器之间,并与膨胀节流器相连,保证制冷剂的循环和节流。The heat recovery air conditioning unit is composed of a blower box, a blower box, a refrigeration system, and a power distribution control system, and one of the refrigeration systems has a diaphragm type liquid storage device capable of storing liquid refrigerant, which is characterized by a diaphragm type The liquid storage device is mainly composed of a tank body, a diaphragm, a drying filter and a refrigerant circulation pipe. The diaphragm is made of elastic or flexible material, which is located in the center of the tank body, and is divided into two independent spaces on the left and right sides, and is connected at the lower part of the tank body. There is a refrigerant circulation pipe and a drying filter. When the refrigerant enters and exits the tank through the refrigerant circulation pipe, it is processed through a drying filter, and the refrigerant circulation pipe is connected with the space on both sides of the tank diaphragm, when the refrigerant circulation pipe is When the high pressure end is connected to the side and the low pressure end is connected to the other side, the diaphragm extends or expands from the high pressure side to the low pressure side, and a large space for storing the high pressure liquid refrigerant is formed on the high pressure side, and a part of the high pressure liquid refrigerant flows to the expansion throttle. The excess portion is stored therein, and the diaphragm type reservoir is connected between the condenser of the refrigeration system and the evaporator, and is connected to the expansion restrictor to ensure the circulation of the refrigerant and Flow.
  10. 热回收空调机组,它是由送风箱、排风箱、制冷系统、配电控制系统组成,其中一种制冷系统带有可以储存液态制冷剂的重力流储液器,其特征在于,它通过两根制冷剂管道跨接在膨胀节流器的两端,并位于其上方,且位于冷凝器、蒸发器的下方,它带有防止液态制冷剂闪发和把闪发蒸汽引出的装置,液态制冷剂依靠自身重力进出储液器。 The heat recovery air conditioning unit is composed of a blower box, a ventilating box, a refrigeration system, and a power distribution control system, and one of the refrigeration systems has a gravity flow accumulator that can store liquid refrigerant, and is characterized in that it passes Two refrigerant pipes are connected across and above the expansion restrictor, and are located below the condenser and the evaporator, and have a device for preventing liquid refrigerant from flashing and extracting flash steam, liquid The refrigerant enters and exits the accumulator by its own gravity.
PCT/CN2013/071892 2011-05-06 2013-02-26 Air-conditioning unit with heat recovery WO2013131436A1 (en)

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