CN105953323A - Heat recovery dry and wet two-stage filtering indirect-direct composite evaporative cooling fresh air handling unit - Google Patents
Heat recovery dry and wet two-stage filtering indirect-direct composite evaporative cooling fresh air handling unit Download PDFInfo
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- CN105953323A CN105953323A CN201610303996.2A CN201610303996A CN105953323A CN 105953323 A CN105953323 A CN 105953323A CN 201610303996 A CN201610303996 A CN 201610303996A CN 105953323 A CN105953323 A CN 105953323A
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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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
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
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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
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
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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
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/117—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering
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- Chemical & Material Sciences (AREA)
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- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
本发明公开的热回收型干湿两级过滤间接‑直接复合蒸发冷却新风机组，包括有机组壳体，机组壳体相对的两侧壁上分别设置有进‑排风联合单元、送风单元；机组壳体内靠近进‑排风联合单元处设置有干湿两级空气过滤‑排风联合系统，机组壳体内靠近送风单元处设置有送风机组，干湿两级空气过滤‑排风联合系统与送风机组之间依次设置有全热热回收器、分层布水式间接蒸发冷却器及喷雾式直接蒸发冷却器。本发明热回收型干湿两级过滤间接‑直接复合蒸发冷却新风机组，能对进风进行干湿两级过滤，改进间接蒸发冷却换热器的结构、材质及布水方式，增加能量回收装置，采用喷雾式直接蒸发冷却，提高了制取新风的品质和机组的节能效率。
The heat recovery type dry-wet two-stage filter indirect-direct compound evaporative cooling fresh air unit disclosed by the present invention includes an organic unit casing, and an inlet-exhaust joint unit and an air supply unit are respectively arranged on the opposite side walls of the unit casing; A dry and wet two-stage air filtration-exhaust combined system is installed in the unit casing close to the air inlet-exhaust unit, and a blower unit is installed in the unit casing near the air supply unit. The dry and wet two-stage air filter-exhaust combined system is connected with The total heat recovery unit, the layered water distribution type indirect evaporative cooler and the spray type direct evaporative cooler are arranged successively between the blower units. The heat recovery type dry-wet two-stage filtration indirect-direct compound evaporative cooling fresh air unit of the present invention can perform dry-wet two-stage filtration on the incoming air, improve the structure, material and water distribution method of the indirect evaporative cooling heat exchanger, and increase the energy recovery device , using spray-type direct evaporative cooling, which improves the quality of fresh air and the energy-saving efficiency of the unit.
Description
技术领域technical field
本发明属于空调设备技术领域，具体涉及一种热回收型干湿两级过滤间接-直接复合蒸发冷却新风机组。The invention belongs to the technical field of air-conditioning equipment, and in particular relates to a heat recovery type dry-wet two-stage filter indirect-direct composite evaporative cooling fresh air unit.
背景技术Background technique
目前，常见的新风机组主要分为单向流、双向流以及全热交换机组三种类型。其中，单向流新风机组采取“强制排风，自然进风”方式。双向流新风机组采取“强制排风，强制送风”方式，且与单向流新风机组相比增加了新风过滤，相应地提高了新风的品质，而全热回收新风机组是在双向流新风机组基础上的一次优化，新风品质及节能性更佳；但是，在实际应用过程中，由于受多种因素的影响，其依然存在一些问题，比如：空气过滤不充分、热回收器堵塞、清洗困难以及新风品质不高的问题。At present, common fresh air units are mainly divided into three types: one-way flow, two-way flow and full heat exchange units. Among them, the one-way flow fresh air unit adopts the method of "forced exhaust and natural air intake". The two-way flow fresh air unit adopts the method of "forced exhaust and forced air supply", and compared with the one-way flow fresh air unit, the fresh air filter is added, which improves the quality of fresh air accordingly. Based on an optimization, the fresh air quality and energy saving are better; however, in the actual application process, due to the influence of various factors, there are still some problems, such as: insufficient air filtration, blockage of heat recovery device, difficult cleaning And the problem of low quality of fresh air.
面对人们对生活、生产环境的更多要求、空气污染所造成的严重后果以及节能减排的国家战略，人们需要一种功能齐全、节能友好的新型新风机组。Faced with people's more requirements for living and production environments, the serious consequences of air pollution, and the national strategy of energy conservation and emission reduction, people need a new type of fresh air unit with complete functions and energy-saving friendliness.
蒸发冷却空调技术是以水作为冷却介质，通过水分蒸发吸热进行冷却，除此之外，该技术还有很好的过滤、净化及加湿功能。目前，该技术已在我国西北地区和东南沿海地区得到广泛的应用，其作为一种健康、经济、节能、低碳的友好空调技术也被越来越多的人所熟知。Evaporative cooling air-conditioning technology uses water as the cooling medium to cool through water evaporation and heat absorption. In addition, this technology also has very good filtering, purification and humidification functions. At present, this technology has been widely used in the northwest and southeast coastal areas of my country, and it is also known by more and more people as a healthy, economical, energy-saving and low-carbon friendly air-conditioning technology.
发明内容Contents of the invention
本发明的目的在于提供一种热回收型干湿两级过滤间接-直接复合蒸发冷却新风机组，能对进风实施干湿两级过滤，改进间接蒸发冷却换热器的结构、材质及布水方式，增加能量回收装置，采用喷雾式直接蒸发冷却，有效提高了制取新风的品质和机组的节能效率。The purpose of the present invention is to provide a heat recovery type dry and wet two-stage filter indirect-direct composite evaporative cooling fresh air unit, which can perform dry and wet two-stage filtration on the incoming air, and improve the structure, material and water distribution of the indirect evaporative cooling heat exchanger In this way, the energy recovery device is added, and the spray-type direct evaporative cooling is adopted, which effectively improves the quality of the fresh air produced and the energy-saving efficiency of the unit.
本发明所采用的技术方案是，热回收型干湿两级过滤间接-直接复合蒸发冷却新风机组，包括有机组壳体，机组壳体相对的两侧壁上分别设置有进-排风联合单元、送风单元；进-排风联合单元由呈上下设置的新风进风口、二次风排风口构成；送风单元由至少四个送风口构成；机组壳体内靠近进-排风联合单元处设置有干湿两级空气过滤-排风联合系统，机组壳体内靠近送风单元处设置有送风机组，干湿两级空气过滤-排风联合系统与送风机组之间依次设置有全热热回收器、分层布水式间接蒸发冷却器及喷雾式直接蒸发冷却器。The technical solution adopted in the present invention is that the heat recovery type dry-wet two-stage filter indirect-direct compound evaporative cooling fresh air unit includes an organic unit casing, and air inlet-exhaust joint units are respectively arranged on the opposite side walls of the unit casing 1. Air supply unit; the air inlet-exhaust combined unit is composed of fresh air inlets and secondary air exhaust outlets arranged up and down; A dry and wet two-stage air filtration-exhaust combined system is installed. A blower unit is installed near the air supply unit in the unit shell, and a total heat recovery is arranged in turn between the dry and wet two-stage air filter-exhaust combined system and the blower unit. evaporative cooler, layered water distribution type indirect evaporative cooler and spray type direct evaporative cooler.
本发明的特点还在于：The present invention is also characterized in that:
干湿两级空气过滤-排风联合系统由呈上下设置的干湿两级空气过滤系统和二次风排风机构成；干湿两级空气过滤系统靠近新风进风口处设置，二次风排风机靠近二次风排风口处设置。The dry and wet two-stage air filtration-exhaust combined system is composed of a dry and wet two-stage air filtration system and a secondary air exhaust fan; the dry and wet two-stage air filtration system is set near the fresh air inlet, and the secondary air exhaust The fan is set close to the outlet of the secondary air.
干湿两级空气过滤系统由按空气流动方向依次设置的袋式初效过滤器及喷雾式过滤单元构成。The dry and wet two-stage air filtration system is composed of bag-type primary filter and spray filter unit arranged in sequence according to the air flow direction.
喷雾式过滤单元，包括有按空气流动方向依次设置的喷雾形成单元和挡水填料a，喷雾形成单元和挡水填料a的下方设置有蓄水池a，喷雾形成单元与蓄水池a连接。The spray filter unit includes a spray forming unit and a water retaining filler a arranged in sequence according to the direction of air flow, a reservoir a is arranged below the spray forming unit and the water retaining filler a, and the spray forming unit is connected to the reservoir a.
喷雾形成单元，包括有多根立式喷雾供水管，多根立式喷雾供水管通过连通管连通，连通管通过蓄水管与蓄水池a连接；每根立式喷雾供水管上均匀设置有多个面向袋式初效过滤器喷雾的雾化喷嘴a，每根立式喷雾供水管上还设置有水过滤器a；蓄水管上设置有水泵a；水泵a采用潜水泵。The spray forming unit includes a plurality of vertical spray water supply pipes, and the multiple vertical spray water supply pipes are connected through a connecting pipe, and the connecting pipe is connected with the reservoir a through a water storage pipe; each vertical spray water supply pipe is evenly arranged with A plurality of atomizing nozzles a facing the spraying of the bag-type primary filter, each vertical spray water supply pipe is also provided with a water filter a; the water storage pipe is provided with a water pump a; the water pump a adopts a submersible pump.
分层布水式间接蒸发冷却器，包括有分层布水式换热装置，分层布水式换热装置的上方设置有挡水填料b，挡水填料b与机组壳体顶壁之间形成空气流道；分层布水式换热装置的下方设置有蓄水池b，蓄水池b通过供水总管与分层布水式换热装置连接；分层布水式换热装置与蓄水池b之间形成二次风流道，二次风流道对应的机组壳体侧壁上设置有二次风进风口；供水总管上分别设置有水泵b、水过滤器b；水泵b采用潜水泵。The layered water distribution type indirect evaporative cooler includes a layered water distribution type heat exchange device, and a water retaining filler b is arranged above the layered water distribution type heat exchange device, between the water retaining filler b and the top wall of the unit shell An air flow channel is formed; a reservoir b is arranged below the layered water distribution heat exchange device, and the reservoir b is connected to the layered water distribution heat exchange device through the water supply main pipe; the layered water distribution heat exchange device is connected to the storage A secondary air flow channel is formed between the pools b, and the side wall of the unit housing corresponding to the secondary air flow channel is provided with a secondary air inlet; the water supply main pipe is respectively provided with a water pump b and a water filter b; the water pump b adopts a submersible pump .
分层布水式板管换热单元，包括有呈上下设置的多个板管式铝箔换热器，每个板管式铝箔换热器的上方均设置有喷淋器，且每个喷淋器均与供水总管连接。Layered water distribution type plate and tube heat exchange unit, including multiple plate and tube aluminum foil heat exchangers arranged up and down, each plate and tube aluminum foil heat exchanger is equipped with a sprinkler, and each spray are connected to the water supply mains.
板管式铝箔换热器，包括有板管式铝箔换热器壳体，板管式铝箔换热器壳体内设置有中央隔板，中央隔板将整个板管式铝箔换热器壳体内分隔成两个板管内一次空气流道；喷淋器由喷淋水管和多个均匀设置于喷淋水管上且向下喷淋的旋流喷嘴构成。The plate and tube aluminum foil heat exchanger includes a plate and tube aluminum foil heat exchanger shell, and a central partition is arranged inside the plate and tube aluminum foil heat exchanger shell, and the central partition separates the entire plate and tube aluminum foil heat exchanger shell. The primary air flow channel in two plate tubes; the sprinkler is composed of a spray water pipe and a plurality of swirl nozzles evenly arranged on the spray water pipe and sprayed downward.
喷雾式直接蒸发冷却器，包括有按空气流动方向依次设置的喷雾单元、挡水填料c，喷雾单元和挡水填料c的下方设置有蓄水池c；喷雾单元与蓄水池c连接；喷雾单元，包括有多根立式喷雾管道，多根立式喷雾管道通过连接水管连通，连接水管通过喷雾供水管与蓄水池c连接；每根立式喷雾管道上均匀设置有多个面向分层布水式间接蒸发冷却器喷雾的雾化喷嘴b，每根立式喷雾管道上还设置水过滤器d；喷雾供水管上分别设置有水泵c、水过滤器c；水泵c为潜水泵。Spray type direct evaporative cooler, including spray unit and water retaining packing c arranged in sequence according to the direction of air flow, and a reservoir c is arranged under the spray unit and water retaining packing c; the spray unit is connected to the reservoir c; the spray The unit includes a plurality of vertical spray pipes, and the multiple vertical spray pipes are connected through the connecting water pipes, and the connecting water pipes are connected to the reservoir c through the spray water supply pipes; each vertical spray pipe is evenly arranged with a plurality of facing layers Water distribution type indirect evaporative cooler spray atomization nozzle b, water filter d is also set on each vertical spray pipe; water pump c and water filter c are respectively set on the spray water supply pipe; water pump c is a submersible pump.
送风机组由至少四个送风机构成；所有送风机呈多行多列排列；每个送风口上均罩有均风罩。The air supply unit is composed of at least four air supply fans; all the air supply fans are arranged in multiple rows and columns; each air supply port is covered with an air uniform cover.
本发明的有益效果在于：The beneficial effects of the present invention are:
1)本发明热回收型干湿两级过滤间接-直接复合蒸发冷却新风机组，空气过滤单元采用干湿两级空气过滤系统，提高了对一次空气的过滤净化程度，使得机组的设计更加优化；经干湿两级空气过滤系统过滤的一次空气洁净程度高，从而降低了对全热热回收器及板管式铝箔换热器造成的污染或堵塞，既能净化空气也能相应提高机组的工作性能；此外，干湿两级空气过滤系统内的喷雾式过滤单元还能对一次空气起到一定的预冷及加湿功能。1) In the heat recovery type dry-wet two-stage filter indirect-direct composite evaporative cooling fresh air unit of the present invention, the air filter unit adopts a dry-wet two-stage air filter system, which improves the degree of filtration and purification of the primary air and makes the design of the unit more optimized; The primary air filtered by the dry and wet two-stage air filtration system has a high degree of cleanliness, thereby reducing the pollution or blockage caused by the total heat recovery device and the plate-tube aluminum foil heat exchanger, which can not only purify the air but also improve the work of the unit accordingly In addition, the spray filter unit in the wet and dry two-stage air filtration system can also pre-cool and humidify the primary air to a certain extent.
2)本发明热回收型干湿两级过滤间接-直接复合蒸发冷却新风机组，其内部设置有全热热回收器，可回收二次排风中的能量，使机组更加节能。2) The heat recovery type dry-wet two-stage filter indirect-direct compound evaporative cooling fresh air unit of the present invention is equipped with a total heat recovery device inside, which can recover the energy in the secondary exhaust air, making the unit more energy-saving.
3)本发明热回收型干湿两级过滤间接-直接复合蒸发冷却新风机组，其内部的分层布水式间接蒸发冷却器内采用板管式铝箔换热器，该换热器换热较好且成本不高；多个板管式铝箔换热器的布置方式采取交叉排列，板管式铝箔换热器内设置有中央隔板，既能起到支撑作用还能使板管式铝箔换热器内的一次空气分布更加均匀，从而强化换热；板管式铝箔换热器外的布水方式采用旋流喷嘴垂直分层滴淋形式，能在较小泵耗下布水更加均匀，使二次空气与水充分接触，提高了间接蒸发冷却效率。3) The heat recovery type dry-wet two-stage filtration indirect-direct composite evaporative cooling fresh air unit of the present invention adopts a plate-tube aluminum foil heat exchanger in the layered water distribution type indirect evaporative cooler inside, and the heat exchange of the heat exchanger is relatively fast. It is good and the cost is not high; the layout of multiple plate and tube aluminum foil heat exchangers is cross-arranged, and there is a central partition in the plate and tube aluminum foil heat exchanger, which can not only play a supporting role but also make the plate and tube aluminum foil exchange The primary air in the heater is distributed more evenly, thereby enhancing the heat exchange; the water distribution method outside the plate-tube aluminum foil heat exchanger adopts the vertical layered dripping form of the swirl nozzle, which can distribute the water more evenly under the lower pump consumption. Make the secondary air fully contact with water, improve the efficiency of indirect evaporative cooling.
4)本发明热回收型干湿两级过滤间接-直接复合蒸发冷却新风机组，其内部的喷雾式过滤单元及喷雾式直接蒸发冷却器结构相同，雾化喷嘴的工作状况可调。4) In the heat recovery type dry-wet two-stage filter indirect-direct compound evaporative cooling fresh air unit of the present invention, the internal spray filter unit and the spray direct evaporative cooler have the same structure, and the working conditions of the atomizing nozzles can be adjusted.
5)本发明热回收型干湿两级过滤间接-直接复合蒸发冷却新风机组，送风单元采用多个送风机均匀布置的形式，加大了机组的稳定性，可更好地应对单个送风机意外损坏的情况，同时在一定的实际情况下，可不使用或减少使用风管送风。5) In the heat recovery type dry-wet two-stage filter indirect-direct composite evaporative cooling fresh air unit of the present invention, the air supply unit adopts the form of uniform arrangement of multiple blowers, which increases the stability of the unit and can better deal with accidental damage to a single blower At the same time, in certain practical situations, it is not necessary to use or reduce the use of air ducts to supply air.
6)本发明热回收型干湿两级过滤间接-直接复合蒸发冷却新风机组，送风口内的均风装置采用均风罩代替常见的均风格栅，结构简单耐用且均风效果良好。6) The heat recovery type dry-wet two-stage filter indirect-direct compound evaporative cooling fresh air unit of the present invention, the air equalizing device in the air outlet uses an air equalizing hood instead of the common air equalizing grille, the structure is simple and durable, and the air equalizing effect is good.
附图说明Description of drawings
图1是本发明热回收型干湿两级过滤间接-直接复合蒸发冷却新风机组的结构示意图。Fig. 1 is a structural schematic diagram of a heat recovery type dry-wet two-stage filter indirect-direct composite evaporative cooling fresh air unit of the present invention.
图2是本发明热回收型干湿两级过滤间接-直接复合蒸发冷却新风机组内板管式铝箔换热器的结构示意图；Fig. 2 is a structural schematic diagram of the heat recovery type dry-wet two-stage filter indirect-direct compound evaporative cooling fresh air unit inner plate-tube aluminum foil heat exchanger of the present invention;
图3是本发明热回收型干湿两级过滤间接-直接复合蒸发冷却新风机组内喷雾单元的结构示意图；Fig. 3 is a structural schematic diagram of the spray unit in the heat recovery type dry-wet two-stage filter indirect-direct composite evaporative cooling fresh air unit of the present invention;
图4是本发明热回收型干湿两级过滤间接-直接复合蒸发冷却新风机组内送风单元的结构示意图。Fig. 4 is a structural schematic diagram of the air supply unit in the heat recovery type dry-wet two-stage filter indirect-direct composite evaporative cooling fresh air unit of the present invention.
图中，1.新风进风口，2.袋式初效过滤器，3.蓄水池a，4.水泵a，5.雾化喷嘴a，6.水过滤器a，7.挡水填料a，8.全热热回收器，9.板管式铝箔换热器，10.挡水填料b，11.旋流喷嘴，12.雾化喷嘴b，13.挡水填料c，14.送风机，15.均风罩，16.二次风排风口，17.二次风排风机，18.蓄水池b，19.二次风进风口，20.水泵b，21.水过滤器b，22.蓄水池c，23.水泵c，24.水过滤器c，25.供水总管，26.水过滤器d，27.中央隔板，28.板管内一次空气流道，29.立式喷雾管道，30.连接水管，31.喷雾供水管。In the figure, 1. Fresh air inlet, 2. Bag-type primary filter, 3. Reservoir a, 4. Water pump a, 5. Atomizing nozzle a, 6. Water filter a, 7. Water retaining packing a , 8. Total heat recovery device, 9. Plate-and-tube aluminum foil heat exchanger, 10. Water-retaining packing b, 11. Swirl nozzle, 12. Atomizing nozzle b, 13. Water-retaining packing c, 14. Blower, 15. Air uniform hood, 16. Secondary air exhaust outlet, 17. Secondary air exhaust fan, 18. Reservoir b, 19. Secondary air inlet, 20. Water pump b, 21. Water filter b, 22. Reservoir c, 23. Water pump c, 24. Water filter c, 25. Water supply main pipe, 26. Water filter d, 27. Central partition, 28. Primary air channel in plate tube, 29. Vertical Spray pipeline, 30. connect water pipe, 31. spray water supply pipe.
具体实施方式detailed description
下面结合附图和具体实施方式对本发明进行详细说明。The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
本发明热回收型干湿两级过滤间接-直接复合蒸发冷却新风机组，其结构如图1所示，包括有机组壳体，机组壳体相对的两侧壁上分别设置有进-排风联合单元、送风单元；进-排风联合单元由呈上下设置的新风进风口1、二次风排风口16构成；送风单元由至少四个送风口构成；机组壳体内靠近进-排风联合单元处设置有干湿两级空气过滤-排风联合系统，机组壳体内靠近送风单元处设置有送风机组，干湿两级空气过滤-排风联合系统与送风机组之间依次设置有全热热回收器8、分层布水式间接蒸发冷却器及喷雾式直接蒸发冷却器。The heat recovery type dry-wet two-stage filter indirect-direct compound evaporative cooling fresh air unit of the present invention has a structure as shown in Figure 1, including an organic unit casing, and the opposite side walls of the unit casing are respectively provided with air inlet-exhaust joints. Unit, air supply unit; air intake-exhaust joint unit is composed of fresh air inlet 1 and secondary air exhaust port 16 arranged up and down; air supply unit is composed of at least four air supply ports; The joint unit is equipped with a dry and wet two-stage air filtration-exhaust combined system, and a blower unit is installed near the air supply unit in the unit shell, and a full Heat recovery device 8, layered water distribution type indirect evaporative cooler and spray type direct evaporative cooler.
干湿两级空气过滤-排风联合系统由呈上下设置的干湿两级空气过滤系统和二次风排风机17构成；干湿两级空气过滤系统靠近新风进风口1处设置，二次风排风机17靠近二次风排风口16处设置。The dry and wet two-stage air filtration-exhaust combined system is composed of a dry and wet two-stage air filtration system and a secondary air exhaust fan 17 arranged up and down; The exhaust fan 17 is arranged near the secondary air outlet 16 .
干湿两级空气过滤系统由按空气流动方向依次设置的袋式初效过滤器2及喷雾式过滤单元构成。The dry and wet two-stage air filtration system is composed of bag-type primary filter 2 and spray filter unit arranged in sequence according to the air flow direction.
喷雾式过滤单元，包括有按空气流动方向依次设置的喷雾形成单元和挡水填料a7，喷雾形成单元和挡水填料a7的下方设置有蓄水池a3，喷雾形成单元与蓄水池a3连接。The spray filter unit includes a spray forming unit and a water retaining filler a7 arranged in sequence according to the air flow direction, a reservoir a3 is arranged below the spray forming unit and the water retaining filler a7, and the spray forming unit is connected to the reservoir a3.
喷雾形成单元，包括有多根立式喷雾供水管，多根立式喷雾供水管通过连通管连通，连通管通过蓄水管与蓄水池a3连接；每根立式喷雾供水管上均匀设置有多个面向袋式初效过滤器2喷雾的雾化喷嘴a5，每根立式喷雾供水管上还设置有水过滤器a6；蓄水管上设置有水泵a4；水泵a4采用潜水泵。The spray forming unit includes a plurality of vertical spray water supply pipes, and the multiple vertical spray water supply pipes are connected through a connecting pipe, and the connecting pipe is connected with the reservoir a3 through a water storage pipe; each vertical spray water supply pipe is evenly arranged with A plurality of atomizing nozzles a5 facing the bag-type primary effect filter 2 spray, each vertical spray water supply pipe is also provided with a water filter a6; the water storage pipe is provided with a water pump a4; the water pump a4 is a submersible pump.
分层布水式间接蒸发冷却器，包括有分层布水式换热装置，分层布水式换热装置的上方设置有挡水填料b10，挡水填料b10与机组壳体顶壁之间形成空气流道；分层布水式换热装置的下方设置有蓄水池b18，蓄水池b18通过供水总管25与分层布水式换热装置连接；分层布水式换热装置与蓄水池b18之间形成二次风流道，二次风流道对应的机组壳体侧壁上设置有二次风进风口19；供水总管25上分别设置有水泵b 20、水过滤器b21。水泵b 20采用潜水泵。The layered water distribution type indirect evaporative cooler includes a layered water distribution type heat exchange device, and a water retaining filler b10 is arranged above the layered water distribution type heat exchange device, between the water retaining filler b10 and the top wall of the unit shell An air flow channel is formed; a reservoir b18 is arranged below the layered water distribution heat exchange device, and the reservoir b18 is connected to the layered water distribution type heat exchange device through the water supply main pipe 25; the layered water distribution type heat exchange device is connected to the A secondary air channel is formed between the reservoirs b18, and a secondary air inlet 19 is provided on the side wall of the unit casing corresponding to the secondary air channel; a water pump b20 and a water filter b21 are respectively provided on the water supply main pipe 25. Water pump b 20 adopts submersible pump.
二次风进风口19内设置有百叶。The secondary air inlet 19 is provided with louvers.
分层布水式板管换热单元，包括有呈上下设置的多个板管式铝箔换热器9，每个板管式铝箔换热器9的上方均设置有喷淋器，且每个喷淋器均与供水总管25连接。The layered water distribution type plate and tube heat exchange unit includes a plurality of plate and tube aluminum foil heat exchangers 9 arranged up and down, each plate and tube aluminum foil heat exchanger 9 is provided with a sprinkler above, and each Showers are all connected with water supply main pipe 25.
板管式铝箔换热器9，如图2所示，包括有板管式铝箔换热器壳体，板管式铝箔换热器壳体内设置有中央隔板27，中央隔板27将整个板管式铝箔换热器壳体内分隔成两个板管内一次空气流道28。The plate and tube aluminum foil heat exchanger 9, as shown in Figure 2, includes a plate and tube aluminum foil heat exchanger shell, and a central partition 27 is arranged inside the plate and tube aluminum foil heat exchanger shell, and the central partition 27 divides the entire plate The shell of the tubular aluminum foil heat exchanger is divided into two primary air passages 28 in the plate tube.
喷淋器由喷淋水管和多个均匀设置于喷淋水管上且向下喷淋的旋流喷嘴11构成。The shower is composed of a spray water pipe and a plurality of swirl nozzles 11 which are evenly arranged on the spray water pipe and spray downward.
喷雾式直接蒸发冷却器，包括有按空气流动方向依次设置的喷雾单元、挡水填料c13，喷雾单元和挡水填料c13的下方设置有蓄水池c22；喷雾单元与蓄水池c22连接。The spray type direct evaporative cooler includes spray units arranged in sequence according to the direction of air flow, water retaining packing c13, and a reservoir c22 is arranged below the spray unit and water retaining packing c13; the spray unit is connected to the reservoir c22.
喷雾单元，如图3所示，包括有多根立式喷雾管道29，多根立式喷雾管道29通过连接水管30连通，连接水管30通过喷雾供水管31与蓄水池c22连接；每根立式喷雾管道29上均匀设置有多个面向分层布水式间接蒸发冷却器喷雾的雾化喷嘴b12，每根立式喷雾管道29上还设置水过滤器d26；喷雾供水管31上分别设置有水泵c23、水过滤器c24。其中，水泵c23为潜水泵。Spraying unit, as shown in Figure 3, comprises many vertical spraying pipes 29, and many vertical spraying pipes 29 are communicated by connecting water pipe 30, and connecting water pipe 30 is connected with reservoir c22 by spraying water supply pipe 31; A plurality of atomizing nozzles b12 facing the layered water distribution type indirect evaporative cooler spray are evenly arranged on the spray pipe 29, and a water filter d26 is also provided on each vertical spray pipe 29; the spray water supply pipe 31 is respectively provided with Water pump c23, water filter c24. Wherein, the water pump c23 is a submersible pump.
送风机组由至少四个送风机14构成；所有送风机14呈多行多列排列。The air blower unit is composed of at least four air blowers 14; all the air blowers 14 are arranged in multiple rows and multiple columns.
如图4所示，每个送风口上均罩有均风罩15。As shown in FIG. 4 , each air outlet is covered with an air uniform cover 15 .
本发明热回收型干湿两级过滤间接-直接复合蒸发冷却新风机组中主要部件的作用如下：The functions of the main components in the heat recovery type dry and wet two-stage filter indirect-direct composite evaporative cooling fresh air unit of the present invention are as follows:
(1)干湿两级空气过滤系统：经干湿两级空气过滤系统过滤的一次空气洁净程度较高，从而降低了对全热热回收器8及分层布水式间接蒸发冷却器造成的污染或堵塞,既能净化空气也能相应提高机组的工作性能；此外，采用喷雾式过滤单元进行湿式过滤还能对一次空气起到一定的预冷及加湿功能。(1) Dry and wet two-stage air filtration system: The primary air filtered by the dry and wet two-stage air filtration system has a high degree of cleanliness, thereby reducing the damage to the total heat recovery device 8 and the layered water distribution type indirect evaporative cooler Contamination or blockage can not only purify the air but also improve the working performance of the unit; in addition, the use of spray filter unit for wet filtration can also play a certain role in pre-cooling and humidifying the primary air.
(2)全热热回收器8：能回收二次排风中的能量，使机组在满足设计要求的同时，还能达到节能、低碳及经济的目的；整个机组结构紧凑，便于维护管理。(2) Total heat heat recovery device 8: It can recover the energy in the secondary exhaust air, so that the unit can meet the design requirements and also achieve the goals of energy saving, low carbon and economy; the whole unit has a compact structure and is easy to maintain and manage.
(3)分层布水式间接蒸发冷却器：其内部采用板管式铝箔换热器9，板管式铝箔换热器9换热较好且成本不高；其内部的多个板管式铝箔换热器9布置方式采取交叉排列，板管式铝箔换热器9内设置有中央隔板27，既能对起到支撑作用还能形成板管内一次空气流道28，使板管式铝箔换热器9内一次空气分布更加均匀，从而强化换热；板管式铝箔换热器9外的布水方式采用旋流喷嘴11垂直分层滴淋形式，可在较小泵耗下布水更加均匀，使得二次空气与水充分接触，提高了冷却的效率。(3) Layered water distribution type indirect evaporative cooler: the plate and tube aluminum foil heat exchanger 9 is used inside, and the heat exchange of the plate and tube aluminum foil heat exchanger 9 is good and the cost is not high; The arrangement of the aluminum foil heat exchangers 9 adopts a cross arrangement, and the plate and tube aluminum foil heat exchanger 9 is provided with a central partition 27, which can not only play a supporting role but also form a primary air flow channel 28 in the plate tube, so that the plate and tube aluminum foil The primary air distribution in the heat exchanger 9 is more uniform, thereby enhancing heat exchange; the water distribution method outside the plate-and-tube aluminum foil heat exchanger 9 adopts the vertical layered dripping form of the swirl nozzle 11, which can distribute water at a small pump consumption It is more uniform, making the secondary air fully contact with the water and improving the cooling efficiency.
(4)喷雾式过滤单元和喷雾式直接蒸发冷却器内均采用喷雾形式，雾化喷嘴a5和雾化喷嘴b12垂直分层、水平分排布置于立式喷雾供水管上、立式喷雾管道29上，操作方便，工作状况可调。(4) Both the spray type filter unit and the spray type direct evaporative cooler adopt the spray form, and the atomization nozzle a5 and the atomization nozzle b12 are vertically layered and horizontally arranged on the vertical spray water supply pipe, and the vertical spray pipe 29 On, easy to operate, adjustable working conditions.
(5)送风机组由至少四个送风机14组成，所有的送风机14呈均匀设置；设置多个送风机14的目的在于：加大了机组的稳定性，可更好地应对单个送风机14意外损坏的情况，同时在一定的实际情况下，可减少使用或不使用送风管送风。(5) The air blower unit is composed of at least four air blowers 14, and all the air blowers 14 are evenly arranged; the purpose of arranging a plurality of air blowers 14 is to increase the stability of the unit and better deal with the accidental damage of a single air blower 14 , At the same time, in certain practical situations, the use of air supply pipes can be reduced or not used to supply air.
(6)均风罩15：在每个送风口上设置有均风罩15，采用均风罩15代替常见的均风格栅，结构简单耐用，均风效果良好。(6) Air equalizing cover 15: each air supply port is provided with an air equalizing cover 15, and the common air equalizing grille is replaced by the air equalizing cover 15, which has a simple and durable structure and good air equalizing effect.
本发明热回收型干湿两级过滤间接-直接复合蒸发冷却新风机组，其工作过程具体如下：The heat recovery type dry-wet two-stage filter indirect-direct compound evaporative cooling fresh air unit of the present invention, its working process is as follows:
(1)一次空气处理过程：(1) Primary air treatment process:
如图1所示，一次空气通过新风进风口1进入机组壳体内，经袋式初效过滤器2进行初级过滤后，再由喷雾式过滤单元进行二级过滤，实现了在过滤的同时对一次空气进行一定程度的预冷及加湿，形成洁净的预冷空气；As shown in Figure 1, the primary air enters the casing of the unit through the fresh air inlet 1, and after primary filtration by the bag-type primary filter 2, the secondary filtration is performed by the spray filter unit, which realizes primary filtration while filtering. The air is pre-cooled and humidified to a certain extent to form clean pre-cooled air;
洁净的预冷空气进入全热热回收器8内，与间接蒸发冷却的二次排风进行热湿交换，回收二次排风中的能量，之后再进入分层布水式间接蒸发冷却器内进行等湿冷却，形成冷空气；The clean pre-cooled air enters the total heat recovery device 8, conducts heat and moisture exchange with the secondary exhaust air of indirect evaporative cooling, recovers the energy in the secondary exhaust air, and then enters the layered water distribution type indirect evaporative cooler Perform isohumid cooling to form cold air;
冷空气流入喷雾式直接蒸发冷却器内，进一步与水雾发生热湿交换，等焓加湿降温，待达到饱和程度后在送风机组的作用下，经送风单元送出。The cold air flows into the spray-type direct evaporative cooler, and further exchanges heat and moisture with the water mist, isenthalpic humidification and cooling, and is sent out through the air supply unit after reaching saturation level under the action of the air supply unit.
在上述过程中，挡水填料a7和挡水填料c13能对一次风所携带的水滴进行过滤，其他较大水滴落回蓄水池a3、蓄水池c22，继续参与循环。In the above process, the water-retaining filler a7 and the water-retaining filler c13 can filter the water droplets carried by the primary wind, and other larger water droplets fall back to the reservoir a3 and c22 to continue to participate in the cycle.
(2)二次空气处理过程：(2) Secondary air treatment process:
二次空气经二次风进风口19进入机组壳体内，二次空气自下而上流过分层布水式换热装置，与自上而下喷淋下来的喷淋水发生等焓加湿降温的湿热交换，形成二次冷空气；The secondary air enters the casing of the unit through the secondary air inlet 19, and the secondary air flows through the layered water distribution heat exchange device from bottom to top, and produces isenthalpic humidification and cooling with the spray water sprayed from top to bottom. Heat and humidity exchange to form secondary cold air;
二次冷空气向上流到挡水填料b10之后进入全热热回收器8内，与一次空气进行热湿交换，最后在二次风排风机17的作用下经二次风排风机16排出。The secondary cold air flows upwards to the water-retaining filler b10 and then enters the total heat recovery device 8, exchanges heat and moisture with the primary air, and finally is discharged through the secondary air exhaust fan 16 under the action of the secondary air exhaust fan 17.
上述过程中，分层布水式间接蒸发冷却器内二次流道内的空气实际是由二次风进风口19从室外引入的新风。In the above process, the air in the secondary flow channel in the layered water distribution type indirect evaporative cooler is actually the fresh air introduced from the outside by the secondary air inlet 19 .
本发明热回收型干湿两级过滤间接-直接复合蒸发冷却新风机组，对现有空调机组内的空气过滤单元进行了改进，采用干湿两级空气过滤，其中袋式初效过滤器2相当于干式过滤单元，能对一次空气进行初级过滤；喷雾式过滤单元采用湿式过滤的方式，能对袋式初效过滤器2未能除去的粉尘及有害气体进行进一步过滤净化，同时对一次空气预冷及加湿；分层布水式间接蒸发冷却器内采用板管式铝箔换热器9，板管式铝箔换热器9换热效果较好且成本较低；每个板管式铝箔换热器9上方设置有旋流喷嘴11，可使二次空气流道在较小泵耗下布水更加均匀，增强该流道内二次空气与水的热湿交换，从而提高对板管式铝箔换热器9内一次空气的降温能力；采用全热热回收器8，能回收二次排风中的能量，提高能量利用率；采用喷雾式直接蒸发冷却器，避免了填料式直接蒸发冷却存在的一些问题，同时可减少循环水量并相应提高直接蒸发冷却的效率。The heat recovery type dry-wet two-stage filter indirect-direct composite evaporative cooling fresh air unit of the present invention improves the air filter unit in the existing air-conditioning unit, and adopts dry-wet two-stage air filtration, in which the bag-type primary filter 2 is equivalent For the dry filter unit, primary air can be filtered; the spray filter unit adopts wet filter, which can further filter and purify the dust and harmful gases that cannot be removed by the bag primary filter 2, and at the same time, the primary air Pre-cooling and humidification; the plate-and-tube aluminum foil heat exchanger 9 is used in the layered water-distribution indirect evaporative cooler, and the heat exchange effect of the plate-and-tube aluminum foil heat exchanger 9 is better and the cost is lower; A swirl nozzle 11 is arranged above the heater 9, which can make the water distribution of the secondary air flow channel more uniform under the lower pump consumption, and enhance the heat and moisture exchange between the secondary air and water in the flow channel, thereby improving the efficiency of the plate and tube aluminum foil. The cooling capacity of the primary air in the heat exchanger 9; the use of the full heat heat recovery device 8 can recover the energy in the secondary exhaust air and improve the energy utilization rate; the use of a spray-type direct evaporative cooler avoids the existence of packing-type direct evaporative cooling At the same time, it can reduce the amount of circulating water and correspondingly improve the efficiency of direct evaporative cooling.
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Cited By (8)
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|---|---|---|---|---|
| CN106731423A (en) * | 2017-02-26 | 2017-05-31 | 东莞市皓奇企业管理服务有限公司 | How to use the fresh air source device |
| CN106823622A (en) * | 2017-02-26 | 2017-06-13 | 东莞市皓奇企业管理服务有限公司 | The application method of air energy air freshener |
| CN106861335A (en) * | 2017-02-26 | 2017-06-20 | 东莞市皓奇企业管理服务有限公司 | Fresh air source device |
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| CN111829109A (en) * | 2020-07-10 | 2020-10-27 | 阿尔西制冷工程技术（北京）有限公司 | Indirect evaporative cooling equipment |
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| CN106823622A (en) * | 2017-02-26 | 2017-06-13 | 东莞市皓奇企业管理服务有限公司 | The application method of air energy air freshener |
| CN106731423A (en) * | 2017-02-26 | 2017-05-31 | 东莞市皓奇企业管理服务有限公司 | How to use the fresh air source device |
| CN106823622B (en) * | 2017-02-26 | 2019-04-12 | 安徽欧瑞达电器科技有限公司 | The application method of air energy air freshener |
| CN106861335B (en) * | 2017-02-26 | 2019-05-07 | 浙江斯柯兰制冷科技有限公司 | Fresh air source device |
| CN108731139A (en) * | 2017-04-20 | 2018-11-02 | 华北电力大学（保定） | A kind of fresh air ventilator having both dedusting and intelligent humidity control function |
| CN111829109A (en) * | 2020-07-10 | 2020-10-27 | 阿尔西制冷工程技术（北京）有限公司 | Indirect evaporative cooling equipment |
| CN111829110A (en) * | 2020-07-10 | 2020-10-27 | 阿尔西制冷工程技术（北京）有限公司 | Indirect evaporative cooling equipment |
| CN114838441A (en) * | 2022-06-07 | 2022-08-02 | 华北电力大学（保定） | An Internet of Things air purifier based on artificial intelligence control |
| CN114838441B (en) * | 2022-06-07 | 2023-06-16 | 华北电力大学（保定） | Internet of things air purifier based on artificial intelligence control |
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