CN104456875B - A kind of Fresh air handing device of indirect evaporating-cooling return air total heat recovery - Google Patents
A kind of Fresh air handing device of indirect evaporating-cooling return air total heat recovery Download PDFInfo
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- CN104456875B CN104456875B CN201410659997.1A CN201410659997A CN104456875B CN 104456875 B CN104456875 B CN 104456875B CN 201410659997 A CN201410659997 A CN 201410659997A CN 104456875 B CN104456875 B CN 104456875B
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- 238000011084 recovery Methods 0.000 title claims abstract description 65
- 238000001816 cooling Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 116
- 239000007921 spray Substances 0.000 claims description 25
- 238000012856 packing Methods 0.000 claims description 20
- 239000000945 filler Substances 0.000 claims description 6
- 239000008400 supply water Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 22
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 238000007791 dehumidification Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 6
- 238000004378 air conditioning Methods 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 5
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 239000003230 hygroscopic agent Substances 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/147—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification with both heat and humidity transfer between supplied and exhausted air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/56—Heat recovery units
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Central Air Conditioning (AREA)
Abstract
本发明公开了一种间接蒸发冷却回风全热回收的新风处理装置，由送风与回风的显热回收装置、回风全热回收装置、空气处理装置等组成。该装置采用显热换热装置，利用温度较低的送风对室内回风进行降温，使得回风在进入全热回收装置之前的状态点贴近于饱和线，因此新风与回风的全热回收过程也贴近于饱和线，提高了全热回收装置的效率。同时新风的送风温度也得到升高，可以直接送入室内。该装置充分利用了回风的可回收能量，减少了冷源投入的冷量，提高了新风处理装置的能效。此外，本发明通过工况切换，可以实现冬季对回风的热回收和对新风加热加湿的功能。
The invention discloses a fresh air treatment device for indirect evaporative cooling and return air total heat recovery, which is composed of a sensible heat recovery device for air supply and return air, a return air full heat recovery device, an air treatment device and the like. The device adopts a sensible heat exchange device, and uses the low-temperature supply air to cool down the indoor return air, so that the state point of the return air before entering the total heat recovery device is close to the saturation line, so the total heat recovery of fresh air and return air The process is also close to the saturation line, improving the efficiency of the total heat recovery unit. At the same time, the supply air temperature of the fresh air is also raised, so that it can be directly sent into the room. The device makes full use of the recyclable energy of the return air, reduces the input cooling capacity of the cold source, and improves the energy efficiency of the fresh air treatment device. In addition, the present invention can realize the heat recovery of return air in winter and the functions of heating and humidifying fresh air by switching working conditions.
Description
技术领域technical field
本发明属于暖通空调系统领域，涉及一种回风全热回收的新风处理装置。The invention belongs to the field of heating, ventilating and air-conditioning systems, and relates to a fresh air processing device for recovering full heat of return air.
背景技术Background technique
空调系统中，根据国家现行卫生标准的要求，需要向室内供给一定量的新鲜室外空气(新风)。国家暖通空调相关的标准一般都规定了向室内供给的最小新风量(m3/h)。室外新风由于温度和湿度以及含尘量等原因，通常不能直接送入室内，必须对其进行热湿处理。在供冷季期间，室外空气通常高温高湿，需要对室外空气降温除湿；在供暖季期间，室外空气通常低温低湿，需要对室外空气升温加湿。对室外空气进行热湿处理是空调系统的主要任务之一，对新风处理的能耗可以占到空调系统能耗的20％-30％，若室外气候条件恶劣，那么新风处理的能耗会更高，因此，降低新风处理能耗是空调系统节能的重要环节。In the air conditioning system, according to the requirements of the current national health standards, a certain amount of fresh outdoor air (fresh air) needs to be supplied to the room. National HVAC-related standards generally stipulate the minimum fresh air volume (m 3 /h) supplied to the room. Due to the temperature, humidity and dust content, the outdoor fresh air usually cannot be directly sent into the room, and must be subjected to heat and humidity treatment. During the cooling season, the outdoor air is usually high temperature and high humidity, which requires cooling and dehumidification of the outdoor air; during the heating season, the outdoor air is usually low temperature and low humidity, and the outdoor air needs to be heated and humidified. Heat and humidity treatment of outdoor air is one of the main tasks of the air conditioning system. The energy consumption of fresh air treatment can account for 20%-30% of the energy consumption of the air conditioning system. If the outdoor weather conditions are bad, the energy consumption of fresh air treatment will be even higher. Therefore, reducing the energy consumption of fresh air treatment is an important part of the energy saving of the air conditioning system.
目前的新风处理方式大多采用板翅式换热器或转轮对新风和回风进行显热回收或全热回收，然后新风和回风混合，统一进行热湿处理，送入室内。这样的处理方式送风温度较低，往往需要对送风再热或采用二次回风与送风混合。除此之外，目前有还有一些独立的新风处理装置，例如溶液除湿、固体除湿等。从以上背景技术来看，目前尚未有一种结合冷凝除湿与蒸发冷却的新风处理装置。本专利旨在提出一种一种回风全热回收的新风处理装置，利用对回风进行间接蒸发冷却，使用填料和换热器组成模块，采用多级模块的方式，充分回收回风的潜热，降低新风处理的能耗。此外，经过处理的新风温度和湿度合适，可以直接送入室内。Most of the current fresh air treatment methods use plate-fin heat exchangers or runners to recover the sensible heat or total heat of the fresh air and return air, and then mix the fresh air and return air for unified heat and humidity treatment and send them into the room. Such a treatment method has a low supply air temperature, and often requires reheating the supply air or mixing the secondary return air with the supply air. In addition, there are currently some independent fresh air treatment devices, such as solution dehumidification, solid dehumidification, etc. From the above background technology, there is no fresh air treatment device that combines condensation dehumidification and evaporative cooling. This patent aims to propose a fresh air treatment device for return air full heat recovery, which uses indirect evaporative cooling of return air, uses fillers and heat exchangers to form modules, and adopts multi-level modules to fully recover the latent heat of return air , to reduce the energy consumption of fresh air treatment. In addition, the temperature and humidity of the treated fresh air are suitable and can be directly sent into the room.
发明内容Contents of the invention
技术问题：本发明提供了一种充分利用了回风的可回收能量，减少了冷源投入的冷量，提高了新风处理装置的总体能效，热回收效率高的间接蒸发冷却回风全热回收的新风处理装置。Technical problem: The present invention provides an indirect evaporative cooling return air full heat recovery that makes full use of the recyclable energy of the return air, reduces the cooling capacity input by the cold source, improves the overall energy efficiency of the fresh air treatment device, and has high heat recovery efficiency. fresh air treatment device.
技术方案：本发明的间接蒸发冷却回风全热回收的新风处理装置，包括回风处理系统和新风处理系统，所述回风处理系统包括依次连接的回风-水换热器、喷淋填料模块和排风-水换热器，所述新风处理系统包括依次连接的送风-水换热器、表冷器和新风-水换热器，所述回风-水换热器与对应的送风-水换热器之间水循环连接，所述喷淋填料模块与对应的新风-水换热器之间水循环连接，所述排风-水换热器与对应的新气-水换热器之间水循环连接。Technical solution: The fresh air treatment device for indirect evaporative cooling and return air full heat recovery of the present invention includes a return air treatment system and a fresh air treatment system, and the return air treatment system includes a return air-water heat exchanger and a spray filler connected in sequence modules and exhaust air-water heat exchangers, the fresh air treatment system includes sequentially connected air supply-water heat exchangers, surface coolers and fresh air-water heat exchangers, and the return air-water heat exchangers are connected with corresponding The water circulation connection between the air supply-water heat exchanger, the water circulation connection between the spray packing module and the corresponding fresh air-water heat exchanger, and the heat exchange between the exhaust air-water heat exchanger and the corresponding fresh air-water Water circulation connection between devices.
本发明装置的优选方案中，回风-水换热器与对应送风-水换热器之间的连接管路上，所述喷淋填料模块与对应新风-水换热器之间的连接管路上，以及所述排风-水换热器与对应新风-水换热器之间的连接管路上均设置有用以实现水循环的水泵。In the preferred version of the device of the present invention, on the connecting pipeline between the return air-water heat exchanger and the corresponding air-supply heat exchanger, the connecting pipe between the spray packing module and the corresponding fresh air-water heat exchanger Water pumps for water circulation are arranged on the road and on the connecting pipeline between the exhaust air-water heat exchanger and the corresponding fresh air-water heat exchanger.
上述两种方案中，在冬季运行时，可采用以下方式实现冬夏工况切换：利用全热回收装置最后一级的水循环空气-空气显热换热器回收回风热量。In the above two schemes, during winter operation, the switching between winter and summer working conditions can be realized in the following way: use the water circulation air-air sensible heat exchanger in the last stage of the total heat recovery device to recover the return air heat.
在夏季工况运行时，该装置设置了送风与回风的显热换热装置，在室内回风和经过降温除湿的送风之间进行显热换热。其作用是使回风温度降低，在含湿量(kg/kg)不变的情况下，使回风的相对湿度(％)提高，回风状态贴近饱和线。同时，该装置提高送风温度，使得经过除湿处理的新风送风温度合适，可以直接送入室内。显热换热装置可采用板翅式空气-空气显热换热器，水循环空气-空气显热换热器或热管空气-空气显热换热器。本发明设置了多级回风全热回收装置。由一个喷淋模块和一个换热模块组成单级全热回收模块，回风全热回收装置包括两级或多级全热回收模块。在喷淋模块和换热模块之间采用水循环。在喷淋模块中设置填料，水与回风通过填料直接接触，回风对水降温。由于在进入喷淋模块之前，回风经过了显热回收装置的降温过程，因此回风与水的传热传质过程贴近于饱和线，可以有效避免传热传质过程中的损失，全热回收效率较高。水经过回风降温之后，通过换热器与新风换热，对新风降温，同时水升温。在全热回收装置中，新风和回风不接触，避免了新回风污染以及漏风的问题。When operating in summer conditions, the device is equipped with a sensible heat exchange device for the supply air and the return air, and performs sensible heat exchange between the indoor return air and the cooled and dehumidified supply air. Its function is to reduce the return air temperature, increase the relative humidity (%) of the return air under the condition of constant moisture content (kg/kg), and the return air state is close to the saturation line. At the same time, the device increases the air supply temperature, so that the dehumidified fresh air supply temperature is suitable and can be directly sent into the room. The sensible heat exchange device can adopt a plate-fin air-air sensible heat exchanger, a water circulation air-air sensible heat exchanger or a heat pipe air-air sensible heat exchanger. The present invention is equipped with a multi-stage return air total heat recovery device. A single-stage total heat recovery module is composed of a spray module and a heat exchange module, and the return air total heat recovery device includes two or more stages of total heat recovery modules. Water circulation is adopted between the spray module and the heat exchange module. Packing is arranged in the spray module, and the water and return air are in direct contact through the packing, and the return air cools down the water. Since the return air passes through the cooling process of the sensible heat recovery device before entering the spray module, the heat and mass transfer process between the return air and water is close to the saturation line, which can effectively avoid the loss in the heat and mass transfer process, and the total heat High recovery efficiency. After the water is cooled by the return air, it exchanges heat with the fresh air through the heat exchanger, cooling the fresh air and heating the water at the same time. In the total heat recovery device, fresh air and return air do not touch, avoiding the problems of fresh return air pollution and air leakage.
本发明装置的一种优选方案中，将所述排风-水换热器替换为喷淋填料模块，所述回风-水换热器与新风-水换热器之间还设置有冬夏工况切换管路，用以实现两者之间水循环和回风-水换热器与送风-水换热器之间水循环的切换。In a preferred solution of the device of the present invention, the exhaust air-water heat exchanger is replaced with a spray packing module, and a winter and summer work unit is also arranged between the return air-water heat exchanger and the fresh air-water heat exchanger. The condition switching pipeline is used to realize the water circulation between the two and the water circulation switching between the return air-water heat exchanger and the supply air-water heat exchanger.
本发明装置的上述优选方案中，所述冬夏工况切换管路分为独立的两路，所述回风-水换热器的水路出口与新风-水换热器的水路进口通过一路连接，回风-水换热器的水路进口与新风-水换热器的水路出口通过另一路连接，冬夏工况切换管路中设置有三通阀门。In the above preferred solution of the device of the present invention, the winter and summer working condition switching pipeline is divided into two independent paths, and the waterway outlet of the return air-water heat exchanger is connected with the waterway inlet of the fresh air-water heat exchanger through one way, The waterway inlet of the return air-water heat exchanger is connected with the waterway outlet of the fresh air-water heat exchanger through another road, and a three-way valve is set in the winter and summer working condition switching pipeline.
上述两种方案中，在冬季运行时，可采用以下方式实现冬夏工况切换：三通阀切换显热换热器的水循环回收回风热量。In the above two schemes, during winter operation, the switching between winter and summer working conditions can be realized in the following way: three-way valve switches the water circulation of the sensible heat exchanger to recover the heat of the return air.
本发明装置的另一种优选方案中，将排风-水换热器替换为喷淋填料模块，同时还设置有板翅式新风-排风换热器，所述喷淋填料模块的排风口与板翅式新风-排风换热器的排风入口连接，所述新风-水换热器的进风口与板翅式新风-排风换热器的新风出口连接。In another preferred solution of the device of the present invention, the exhaust air-water heat exchanger is replaced by a spray packing module, and a plate-fin fresh air-exhaust air heat exchanger is also provided, and the exhaust air of the spray packing module The mouth is connected to the exhaust air inlet of the plate-fin fresh air-exhaust air heat exchanger, and the air inlet of the fresh air-water heat exchanger is connected to the fresh air outlet of the plate-fin fresh air-exhaust air heat exchanger.
该方案中，在冬季运行时，可采用以下方式实现冬夏工况切换：利用全热回收装置最后一级的板翅式空气-空气显热换热器回收回风热量，新风经过全热回收装置以后，进入空气处理装置(表冷器)，在夏季通入冷冻水对新风降温除湿，在冬季通入热水对新风升温，新风如需加湿，还可以再空气处理装置后增加加湿器。In this scheme, during winter operation, the switching between winter and summer working conditions can be achieved in the following way: use the plate-fin air-air sensible heat exchanger at the last stage of the total heat recovery device to recover the heat of the return air, and the fresh air passes through the total heat recovery device After that, it enters the air treatment device (surface cooler), and in summer, chilled water is introduced to cool and dehumidify the fresh air, and in winter, hot water is introduced to heat the fresh air. If the fresh air needs to be humidified, a humidifier can also be added after the air treatment device.
有益效果：本发明与现有技术相比，具有以下优点：Beneficial effect: compared with the prior art, the present invention has the following advantages:
目前，新风处理最常用的方式为冷凝除湿配合回风-新风显热回收或回风-新风全热回收，该方式的空气处理过程是新风与回风先通过热回收装置，然后对新风进行冷凝除湿，被处理过后的新风直接送入室内。本装置与上述装置的区别在于空气处理流程不同，采用显热换热装置，利用温度较低的送风对室内回风进行降温，使得回风在进入全热回收装置之前的状态点贴近于饱和线，因此新风与回风的全热回收过程也贴近于饱和线，而目前常用装置的热回收过程都远离饱和线。本装置可采用水为介质进行回风和新风的全热回收，设备简单可靠，生产成本低，并提高了全热回收装置的效率。同时新风的送风温度也得到升高，可以直接送入室内。该装置充分利用了回风的可回收能量，减少了冷源投入的冷量，提高了新风处理装置的总体能效。At present, the most commonly used method of fresh air treatment is condensation dehumidification combined with return air-fresh air sensible heat recovery or return air-fresh air full heat recovery. The air treatment process of this method is that the fresh air and return air first pass through the heat recovery device, and then condense the fresh air Dehumidification, the treated fresh air is sent directly into the room. The difference between this device and the above-mentioned devices is that the air treatment process is different. The sensible heat exchange device is used to cool the indoor return air by using the low-temperature supply air, so that the state point of the return air before entering the total heat recovery device is close to saturation. Line, so the total heat recovery process of fresh air and return air is also close to the saturation line, while the heat recovery process of commonly used devices is far away from the saturation line. The device can use water as the medium to recover the total heat of return air and fresh air, the equipment is simple and reliable, the production cost is low, and the efficiency of the total heat recovery device is improved. At the same time, the supply air temperature of the fresh air is also raised, so that it can be directly sent into the room. The device makes full use of the recoverable energy of the return air, reduces the input cooling capacity of the cold source, and improves the overall energy efficiency of the fresh air treatment device.
此外，目前的回风-新风显热回收多采用板翅式空气-空气换热器，回风-新风全热回收多采用转轮全热回收。本装置的热回收是全热回收，热回收效率高于板翅式空气-空气显热回收，热回收效率与转轮全热回收相当，成本低于转轮全热回收。In addition, the current return air-fresh air sensible heat recovery mostly uses plate-fin air-air heat exchangers, and the return air-fresh air full heat recovery mostly uses runner full heat recovery. The heat recovery of this device is total heat recovery, the heat recovery efficiency is higher than that of the plate-fin air-air sensible heat recovery, the heat recovery efficiency is equivalent to the total heat recovery of the rotary wheel, and the cost is lower than the total heat recovery of the rotary wheel.
除冷凝除湿之外，目前的新风处理装置还包括溶液调湿新风处理方式、固体除湿新风处理。与溶液调湿新风处理方式相比，本装置的工质为水，不采用除湿溶液(如LiBr溶液、LiCl溶液、CaCl2溶液)，因此，避免了溶液的腐蚀问题，也没有送风带液进入室内的问题。由于没有腐蚀问题，本装置的换热器均可采用普通的管翅式换热器和板式换热器，而无需采用特制的防腐换热器，可大幅降低成本。与固体除湿方式相比，本装置的空气处理流程有所不同。固体除湿流程的空气除湿过程为等焓过程，而本装置的除湿过程为贴近饱和线的过程，通过冷凝除湿方式，冷冻水可以对空气直接除湿。因此，本装置不需要采用吸湿剂，也不涉及到吸湿剂的再生问题，因此生产、制作简单，成本可以大幅下降。In addition to condensation and dehumidification, the current fresh air treatment devices also include solution humidity-adjusting fresh air treatment methods and solid dehumidification fresh air treatment. Compared with the solution humidity control fresh air treatment method, the working medium of this device is water, and no dehumidification solution (such as LiBr solution, LiCl solution, CaCl 2 solution) is used, so the corrosion problem of the solution is avoided, and there is no liquid in the air supply Problems getting inside. Since there is no corrosion problem, the heat exchangers of this device can use ordinary tube-fin heat exchangers and plate heat exchangers instead of special anti-corrosion heat exchangers, which can greatly reduce the cost. Compared with the solid dehumidification method, the air treatment process of this device is different. The air dehumidification process of the solid dehumidification process is an isenthalpic process, while the dehumidification process of this device is a process close to the saturation line. Through the condensation dehumidification method, the chilled water can directly dehumidify the air. Therefore, the device does not need to use a hygroscopic agent, and does not involve the regeneration of the hygroscopic agent, so the production and manufacture are simple, and the cost can be greatly reduced.
本发明装置可实现冬季和夏季工况的转换。在冬季运行时，根据方案结构形式的不同，可分别采用以下几种方式实现冬夏工况切换：(1)利用全热回收装置最后一级的水循环空气-空气显热换热器回收回风热量；(2)三通阀切换显热换热器的水循环回收回风热量；(3)利用全热回收装置最后一级的板翅式空气-空气显热换热器回收回风热量。The device of the invention can realize the switching between winter and summer working conditions. During winter operation, according to the different structural forms of the scheme, the following methods can be adopted to switch between winter and summer working conditions: (1) Use the water circulation air-air sensible heat exchanger in the last stage of the total heat recovery device to recover the return air heat ; (2) The water circulation of the three-way valve switches the sensible heat exchanger to recover the heat of the return air; (3) The plate-fin air-air sensible heat exchanger at the last stage of the total heat recovery device is used to recover the heat of the return air.
附图说明Description of drawings
图1为回风全热回收的新风处理装置原理图(水循环热回收)。Figure 1 is a schematic diagram of a fresh air treatment device for return air full heat recovery (water cycle heat recovery).
图2为回风全热回收的新风处理装置原理图(三通切换式)。Figure 2 is a schematic diagram of a fresh air treatment device for return air full heat recovery (three-way switching type).
图3为回风全热回收的新风处理装置原理图(板翅式热回收)。Figure 3 is a schematic diagram of a fresh air treatment device for return air full heat recovery (plate-fin heat recovery).
图中有：回风-水换热器1、喷淋填料模块2、送风-水换热器3、表冷器4、新风-水换热器5、排风-水换热器6、板翅式新风-排风换热器7、水泵8、三通阀门9。In the figure: return air-water heat exchanger 1, spray packing module 2, supply air-water heat exchanger 3, surface cooler 4, fresh air-water heat exchanger 5, exhaust air-water heat exchanger 6, Plate-fin fresh air-exhaust air heat exchanger 7, water pump 8, three-way valve 9.
具体实施方式detailed description
下面结合实施例和说明书附图对本发明作进一步的说明。The present invention will be further described below in conjunction with embodiment and accompanying drawing.
图1示出了回风全热回收的新风处理装置原理图(水循环热回收)，该装置包括回风处理系统和新风处理系统，所述回风处理系统包括依次连接的回风-水换热器1、喷淋填料模块2和排风-水换热器6，所述新风处理系统包括依次连接的送风-水换热器3、表冷器4和新风-水换热器5，所述回风-水换热器1与对应的送风-水换热器3之间水循环连接，所述喷淋填料模块2与对应的新风-水换热器5之间水循环连接，所述排风-水换热器6与对应的新风-水换热器5之间水循环连接。夏季运行时，新风依次通过换热器，多级全热回收换热器，表冷器和显热回收换热器，回风依次通过显热回收换热器，多级填料和显热回收换热器；冬季运行时，关闭全热回收换热器和送风侧显热回收换热器。所述回风-水换热器1与对应送风-水换热器3之间的连接管路上设置有用以实现水循环的水泵，所述喷淋填料模块2与对应新风-水换热器5之间的连接管路上设置有用以实现水循环的水泵8，所述排风-水换热器6与对应新风-水换热器5之间的连接管路上设置有用以实现水循环的水泵8。Figure 1 shows a schematic diagram of a fresh air treatment device for return air full heat recovery (water circulation heat recovery), the device includes a return air treatment system and a fresh air treatment system, and the return air treatment system includes a return air-water heat exchange connected in sequence device 1, spray packing module 2 and exhaust air-water heat exchanger 6, and the fresh air treatment system includes a sequentially connected air supply-water heat exchanger 3, surface cooler 4 and fresh air-water heat exchanger 5, so The water circulation connection between the return air-water heat exchanger 1 and the corresponding air supply-water heat exchanger 3, the water circulation connection between the spray packing module 2 and the corresponding fresh air-water heat exchanger 5, the exhaust The water circulation connection between the wind-water heat exchanger 6 and the corresponding fresh air-water heat exchanger 5 . During summer operation, the fresh air passes through the heat exchanger, the multi-stage total heat recovery heat exchanger, the surface cooler and the sensible heat recovery heat exchanger in turn, and the return air passes through the sensible heat recovery heat exchanger, the multi-stage packing and the sensible heat recovery heat exchanger in turn. Heater; when running in winter, turn off the total heat recovery heat exchanger and the sensible heat recovery heat exchanger on the air supply side. The connecting pipeline between the return air-water heat exchanger 1 and the corresponding air-water heat exchanger 3 is provided with a water pump for realizing water circulation, and the spray packing module 2 and the corresponding fresh air-water heat exchanger 5 A water pump 8 for water circulation is provided on the connection pipeline between them, and a water pump 8 for water circulation is provided on the connection pipeline between the exhaust air-water heat exchanger 6 and the corresponding fresh air-water heat exchanger 5 .
图2示出了回风全热回收的新风处理装置原理图(三通切换式)，系统由换热器，表冷器，喷淋填料和水泵组成。图1所述排风-水换热器6替换为喷淋填料模块2，所述回风-水换热器1与新风-水换热器5之间还设置有冬夏工况切换管路，用以实现两者之间水循环和回风-水换热器1与送风-水换热器3之间水循环的切换。冬夏工况切换管路分为独立的两路，所述回风-水换热器1的水路出口与新风-水换热器5的水路进口通过一路连接，回风-水换热器1的水路进口与新风-水换热器5的水路出口通过另一路连接，冬夏工况切换管路中设置有三通阀门9。夏季运行时，新风依次通过多级全热回收换热器，表冷器和显热回收换热器，回风依次通过显热回收换热器，多级填料；冬季运行时，通过三通切换，对新风和回风进行显热回收后，再对新风加热送入室内，如室外新风温度较低，可在新风进入换热器之前对其预热，如新风需要加湿，可在送入室内之间，增加加湿器。Figure 2 shows the schematic diagram of the fresh air treatment device (three-way switching type) for the return air full heat recovery. The system consists of a heat exchanger, a surface cooler, a spray packing and a water pump. The exhaust air-water heat exchanger 6 described in Fig. 1 is replaced by a spray filler module 2, and a switching pipeline between winter and summer working conditions is also arranged between the return air-water heat exchanger 1 and the fresh air-water heat exchanger 5, It is used to realize the switching of the water circulation between the two and the water circulation between the return air-water heat exchanger 1 and the air-supply water heat exchanger 3 . The switching pipeline for winter and summer working conditions is divided into two independent paths. The waterway outlet of the return air-water heat exchanger 1 is connected with the waterway inlet of the fresh air-water heat exchanger 5 through one path, and the waterway inlet of the return air-water heat exchanger 1 is connected through one path. The inlet of the waterway is connected with the outlet of the waterway of the fresh air-water heat exchanger 5 through another way, and a three-way valve 9 is arranged in the pipeline for switching between winter and summer working conditions. During summer operation, the fresh air passes through the multi-stage total heat recovery heat exchanger, surface cooler and sensible heat recovery heat exchanger in turn, and the return air passes through the sensible heat recovery heat exchanger and multi-stage packing in turn; during winter operation, it is switched through three-way , after recovering the sensible heat of the fresh air and return air, the fresh air is heated and sent indoors. If the temperature of the outdoor fresh air is low, it can be preheated before the fresh air enters the heat exchanger. If the fresh air needs to be humidified, it can be sent indoors In between, add a humidifier.
图3示出了回风全热回收的新风处理装置原理图(板翅式热回收)，图2排风-水换热器6替换为喷淋填料模块2，同时还设置有板翅式新风-排风换热器7，所述喷淋填料模块2的排风口与板翅式新风-排风换热器7的排风入口连接，所述新风-水换热器5的进风口与板翅式新风-排风换热器7的新风出口连接。系统运行方式与图1系统类似。Figure 3 shows the schematic diagram of the fresh air treatment device for return air full heat recovery (plate-fin heat recovery), and Figure 2 replaces the exhaust air-water heat exchanger 6 with a spray filler module 2, and is also equipped with a plate-fin fresh air -Exhaust air heat exchanger 7, the air outlet of the spray filler module 2 is connected to the exhaust air inlet of the plate-fin fresh air-exhaust air heat exchanger 7, the air inlet of the fresh air-water heat exchanger 5 is connected to The fresh air outlet of the plate-fin fresh air-exhaust air heat exchanger 7 is connected. The operating mode of the system is similar to that of the system in Figure 1.
上述实施例仅是本发明的优选实施方式，应当指出：对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和等同替换，这些对本发明权利要求进行改进和等同替换后的技术方案，均落入本发明的保护范围。The foregoing embodiments are only preferred implementations of the present invention. It should be pointed out that those skilled in the art can make several improvements and equivalent replacements without departing from the principle of the present invention. Technical solutions requiring improvement and equivalent replacement all fall within the protection scope of the present invention.
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864525A (en) * | 2015-04-17 | 2015-08-26 | 东南大学 | Fresh air treatment device capable of indirect evaporative cooling |
| CN105371397A (en) * | 2015-11-25 | 2016-03-02 | 北京格瑞力德空调科技有限公司 | Evaporative cooling total heat recovery independent integrated dehumidification fresh air handling unit with embedded cold source |
| CN106765685A (en) * | 2017-01-23 | 2017-05-31 | 东南大学 | A kind of heat pump driven indirect evaporating-cooling return air full heat recovery fresh air processing unit |
| CN108006855A (en) * | 2017-12-11 | 2018-05-08 | 广东申菱环境系统股份有限公司 | Data center module recovery efficient Cooling Air-conditioning System |
| CN108917002B (en) * | 2018-08-17 | 2023-12-26 | 盐城市力马空调工程有限公司 | Combined air conditioning unit |
| CN109945333A (en) * | 2019-02-19 | 2019-06-28 | 东南大学 | A residential building air-conditioning system with decentralized adjustment at the end of fresh air centralized treatment |
| CN112710033B (en) * | 2021-01-14 | 2024-12-31 | 南昌大学 | A liquid dehumidification fresh air treatment system based on a dehumidification-evaporative cooling closed cycle |
| WO2024123238A1 (en) * | 2022-12-09 | 2024-06-13 | St Engineering Innosparks Pte Ltd | Dedicated outdoor air system with energy recovery ventilator |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002054838A (en) * | 2000-08-10 | 2002-02-20 | Seibu Giken Co Ltd | Dehumidifying air conditioning apparatus |
| CN1542356A (en) * | 2003-04-30 | 2004-11-03 | 清华大学 | A total heat exchange method and device using solution as medium |
| CN1548834A (en) * | 2003-05-08 | 2004-11-24 | 清华大学 | A fresh air air conditioner with a solution heat recovery device |
| CN1693778A (en) * | 2005-05-31 | 2005-11-09 | 清华大学 | Heat recovery type fresh air treatment system using hygroscopic solution as circulating working medium |
| CN1865789A (en) * | 2006-06-15 | 2006-11-22 | 清华大学 | Whole-thermal reclaiming type thermal-drive solution ventilation processor set by using evaporative cooling of return air |
| CN2896100Y (en) * | 2006-06-15 | 2007-05-02 | 清华大学 | Utilizing the return air to evaporatively cool the total heat recovery type heat-driven solution fresh air unit |
| CN101251285A (en) * | 2008-04-03 | 2008-08-27 | 清华大学 | An indirect evaporative refrigeration method and device for simultaneously generating cold water and cold air |
| CN103075770A (en) * | 2013-01-18 | 2013-05-01 | 清华大学 | Rotating wheel dehumidification device utilizing indoor exhaust evaporation cooling and use method of rotating wheel dehumidification device |
| CN202993429U (en) * | 2012-12-13 | 2013-06-12 | 澳蓝（福建）实业有限公司 | Solution temperature control and moisture control fresh air processor |
-
2014
- 2014-11-18 CN CN201410659997.1A patent/CN104456875B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002054838A (en) * | 2000-08-10 | 2002-02-20 | Seibu Giken Co Ltd | Dehumidifying air conditioning apparatus |
| CN1542356A (en) * | 2003-04-30 | 2004-11-03 | 清华大学 | A total heat exchange method and device using solution as medium |
| CN1548834A (en) * | 2003-05-08 | 2004-11-24 | 清华大学 | A fresh air air conditioner with a solution heat recovery device |
| CN1693778A (en) * | 2005-05-31 | 2005-11-09 | 清华大学 | Heat recovery type fresh air treatment system using hygroscopic solution as circulating working medium |
| CN1865789A (en) * | 2006-06-15 | 2006-11-22 | 清华大学 | Whole-thermal reclaiming type thermal-drive solution ventilation processor set by using evaporative cooling of return air |
| CN2896100Y (en) * | 2006-06-15 | 2007-05-02 | 清华大学 | Utilizing the return air to evaporatively cool the total heat recovery type heat-driven solution fresh air unit |
| CN101251285A (en) * | 2008-04-03 | 2008-08-27 | 清华大学 | An indirect evaporative refrigeration method and device for simultaneously generating cold water and cold air |
| CN202993429U (en) * | 2012-12-13 | 2013-06-12 | 澳蓝（福建）实业有限公司 | Solution temperature control and moisture control fresh air processor |
| CN103075770A (en) * | 2013-01-18 | 2013-05-01 | 清华大学 | Rotating wheel dehumidification device utilizing indoor exhaust evaporation cooling and use method of rotating wheel dehumidification device |
Non-Patent Citations (3)
| Title |
|---|
| "小型全热回收新风机组模拟及性能分析";陈林;《工程热物理学报》;20070630;第28卷;41-44 * |
| "排热全热回收的液体除湿空调试验台的试验研究";刘业凤;《上海理工大学学报》;20070419;第29卷(第4期);334-336 * |
| "逆流填料式液体除湿系统传热传质过程解析";路则锋;《同济大学学报》;20000630;第28卷(第3期);342-347 * |
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