CN108626816A - A kind of humidity step processing unit of low moisture environments - Google Patents
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- 238000007791 dehumidification Methods 0.000 claims abstract description 120
- 230000006835 compression Effects 0.000 claims abstract description 20
- 238000007906 compression Methods 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 60
- 238000011069 regeneration method Methods 0.000 claims description 57
- 230000008929 regeneration Effects 0.000 claims description 56
- 238000001816 cooling Methods 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 7
- 239000003507 refrigerant Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 4
- 238000005057 refrigeration Methods 0.000 claims description 4
- 230000000977 initiatory effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 40
- 238000009833 condensation Methods 0.000 abstract description 20
- 230000005494 condensation Effects 0.000 abstract description 20
- 230000009290 primary effect Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 183
- 238000004378 air conditioning Methods 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000005265 energy consumption Methods 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000009776 industrial production Methods 0.000 description 4
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 4
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
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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
- F24F3/1411—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 by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
- F24F3/1417—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 by absorbing or adsorbing water, e.g. using an hygroscopic desiccant with liquid hygroscopic desiccants
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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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Abstract
本发明公开了一种低湿环境的湿度梯级处理装置，包括沿室外新风方向依次设置的第一风机、初效过滤器和中效过滤器、第一表冷器、设置于所述第一表冷器后方的溶液除湿系统、第一新风支路、第二新风支路、第一回风支路和第二回风支路、与所述溶液除湿系统、第一新风支路和第二回风支路均连接的蒸汽压缩式热泵系统。该装置中空气的湿度处理流程依次包括冷凝除湿过程、溶液除湿过程和转轮除湿过程，可以对湿热的空气进行降温和深度除湿，以满足常用工业低湿环境的需求。
The invention discloses a humidity cascade processing device for a low-humidity environment, which comprises a first fan, a primary-effect filter, a medium-effect filter, a first surface cooler, and a first surface cooler arranged in sequence along the direction of outdoor fresh air. The solution dehumidification system behind the device, the first fresh air branch, the second fresh air branch, the first return air branch and the second return air branch, and the solution dehumidification system, the first fresh air branch and the second return air A vapor compression heat pump system with all branch circuits connected. The humidity treatment process of the air in the device includes condensation dehumidification process, solution dehumidification process and wheel dehumidification process in sequence, which can cool down and deeply dehumidify the hot and humid air to meet the needs of common industrial low-humidity environments.
Description
技术领域technical field
本发明属于空气调节系统设计与制造技术领域，涉及一种能够为建筑室内提供低湿环境的空气处理装置。The invention belongs to the technical field of design and manufacture of an air conditioning system, and relates to an air treatment device capable of providing a low-humidity environment inside a building.
背景技术Background technique
在目前的空调装备设计与制造领域，主要关注点在于公共建筑和家庭住宅等民用建筑的室内热湿环境的营造，而针对工业建筑的相关空调产品还并不是十分丰富。而然工业建筑对于湿热环境的控制需求又往往比民用建筑更为苛刻，这使得目前常见的空气处理设备难以满足其特殊需求。In the current field of air-conditioning equipment design and manufacturing, the main focus is on the creation of indoor thermal and humid environments in civil buildings such as public buildings and family houses, while related air-conditioning products for industrial buildings are not very rich. However, industrial buildings often have more stringent control requirements for hot and humid environments than civil buildings, which makes it difficult for current common air handling equipment to meet their special needs.
在工业建筑中，很多工艺性生产、加工场合对室内温湿度、洁净度等有着严格的要求，其室内热湿环境调控是保障工业工艺生产需求的重要环节。由于工业产品类型众多，所要求的室内生产环境差异很大。例如，电线电缆制造车间的室内温湿度要求是温度27℃、而相对湿度和含湿量却低至5～20％和1.1～4.4gkg；制药领域胶囊存储的环境需求为24℃、相对湿度和含湿量为35～40％和6.5～7.4gkg即可；食品生产中的谷类储存和干燥的温度需求低至16℃，相对湿度和含湿量要求为40％和4.5g/kg；轻工业生产中印刷装订过程的温度可高达32℃，但是空气相对湿度却要控制在30％左右(含湿量8.9g/kg)。所以，总的来说，大多数工业生产场合所需要的都是湿度较低的环境，其室内含湿量控制通常都在10g/kg以下，而含湿量需求在5g/kg以下的低湿环境也是非常普遍。In industrial buildings, many technological production and processing occasions have strict requirements on indoor temperature, humidity, cleanliness, etc. The indoor heat and humidity environment regulation is an important link to ensure the demand of industrial process production. Due to the numerous types of industrial products, the required indoor production environments vary widely. For example, the indoor temperature and humidity requirement of the wire and cable manufacturing workshop is 27°C, while the relative humidity and moisture content are as low as 5-20% and 1.1-4.4gkg; the environmental requirements for capsule storage in the pharmaceutical field are 24°C, relative humidity and The moisture content is 35-40% and 6.5-7.4gkg; the temperature requirement for grain storage and drying in food production is as low as 16°C, and the relative humidity and moisture content requirements are 40% and 4.5g/kg; light industrial production The temperature in the printing and binding process can be as high as 32°C, but the relative humidity of the air should be controlled at about 30% (moisture content 8.9g/kg). Therefore, in general, what most industrial production occasions need is an environment with low humidity. The indoor humidity control is usually below 10g/kg, and the low-humidity environment with a moisture content below 5g/kg is required. It is also very common.
工业低湿环境的需求和对室内温度的控制对于空调处理设备提出了严格的要求。目前工业建筑中湿度控制的常用手段有冷凝除湿、溶液除湿和转轮除湿三种。其中，使用冷凝除湿方式的空调设备为工业建筑提供低湿环境时，空调设备中所使用的冷源温度必须非常低，才能达到低含湿量环境下空气的露点温度以下，来达到空气除湿的目的。所以此时冷水机组等相关设备的能耗会非常大，从而带来高昂的运行费用。另外，冷凝除湿后的空气温度同样非常低，因此还需额外的再热单元，来提升送风温度，以满足工业生产的需求，这又导致了空调系统的能耗进一步增加。The demand for industrial low-humidity environment and the control of indoor temperature put forward strict requirements for air-conditioning processing equipment. At present, there are three common means of humidity control in industrial buildings: condensation dehumidification, solution dehumidification and rotary dehumidification. Among them, when the air-conditioning equipment using the condensation dehumidification method provides a low-humidity environment for industrial buildings, the temperature of the cold source used in the air-conditioning equipment must be very low in order to achieve the dew point temperature of the air in a low-humidity environment to achieve the purpose of air dehumidification . Therefore, at this time, the energy consumption of related equipment such as chillers will be very large, resulting in high operating costs. In addition, the temperature of the air after condensation and dehumidification is also very low, so an additional reheating unit is needed to increase the temperature of the supply air to meet the needs of industrial production, which further increases the energy consumption of the air conditioning system.
针对冷凝除湿方式能耗过大的问题，近些年采用非机械除湿方式的溶液除湿技术得到了广泛的应用。在溶液除湿空调机组中，空气与除湿溶液进行直接接触，空气中的水分会被除湿溶液直接吸收，而稀释后的除湿溶液又可以利用工业废热和太阳能等低位热源来进行再生。这类空调系统的最大优点是节能效果显著，制冷温度不需要很低，只需要满足显热负荷的处理要求即可，另外溶液除湿过程还伴随着热量的释放，因此空气被除湿降温后温度也不会特别低。虽然溶液除湿空调机组在节能方面具有优势，而然将其应用到工业低湿环境的控制时会遇到一些问题。例如，当空气湿负荷处理过大、送风含湿量需求过低时，单级的溶液除湿空调系统很难满足要求，必须采用多级的形式，这就导致设备占用空间过大、成本过高的问题，而且此时所使用的除湿溶液的浓度要求非常高，常规的除湿溶液种类难以达到要求，过高的溶液浓度所带来的机组腐蚀和再生能耗问题也难以解决。所以单独的溶液除湿系统并不是十分适用于深度除湿的场合。Aiming at the problem of excessive energy consumption of the condensation dehumidification method, the solution dehumidification technology using the non-mechanical dehumidification method has been widely used in recent years. In the solution dehumidification air conditioning unit, the air is in direct contact with the dehumidification solution, the moisture in the air will be directly absorbed by the dehumidification solution, and the diluted dehumidification solution can be regenerated by using low-level heat sources such as industrial waste heat and solar energy. The biggest advantage of this type of air conditioning system is that the energy saving effect is remarkable, the cooling temperature does not need to be very low, it only needs to meet the processing requirements of sensible heat load, and the dehumidification process of the solution is accompanied by the release of heat, so the temperature of the air after dehumidification and cooling is also low. Not particularly low. Although the solution dehumidification air-conditioning unit has advantages in terms of energy saving, it will encounter some problems when it is applied to the control of industrial low-humidity environment. For example, when the air humidity load is too large and the humidity content of the supply air is too low, it is difficult for a single-stage solution dehumidification air-conditioning system to meet the requirements, and a multi-stage form must be adopted, which leads to excessive space occupation and excessive cost of equipment. Moreover, the concentration of the dehumidification solution used at this time is very high, and the conventional dehumidification solution types are difficult to meet the requirements, and the problems of unit corrosion and regeneration energy consumption caused by too high solution concentration are also difficult to solve. Therefore, a separate solution dehumidification system is not very suitable for deep dehumidification.
转轮除湿是一种常见的适用于深度除湿过程的技术，使用转轮除湿设备为工业生产提供低湿环境是一种可行的技术手段。而然转轮除湿过程中往往伴随着热量的释放，空气被除湿的同时会带来较大的温升，过高的送风温度也不能满足建筑内环境温度的需求。空气参数调节不灵活的缺陷是限制转轮除湿设备单独运行的最重要因素。Rotary wheel dehumidification is a common technology suitable for deep dehumidification process. Using rotary wheel dehumidification equipment to provide low humidity environment for industrial production is a feasible technical means. However, the dehumidification process of the rotary wheel is often accompanied by the release of heat. When the air is dehumidified, it will bring about a large temperature rise, and the excessively high supply air temperature cannot meet the requirements of the ambient temperature in the building. The defect of inflexible adjustment of air parameters is the most important factor limiting the single operation of the rotary dehumidification equipment.
针对上述问题，如何在现有的技术手段的基础上构建适用于大多数工业建筑低湿环境和温度要求的空调系统，同时满足环保和节能的需求，是目前空调设备设计制造领域所需要解决的一个问题。In view of the above problems, how to build an air-conditioning system suitable for the low-humidity environment and temperature requirements of most industrial buildings on the basis of existing technical means, and at the same time meet the needs of environmental protection and energy saving is a problem that needs to be solved in the field of air-conditioning equipment design and manufacturing. question.
发明内容Contents of the invention
发明目的：本发明的目的是提供一种低湿环境的湿度梯级处理装置，为工业建筑室内热湿环境的控制提供条件。该装置通过系统优化设计将冷凝除湿、溶液除湿和转轮除湿三种空气湿度处理方式有效的结合，同时辅以其他空气状态调节设备，以实现送风温度和含湿量的控制、并达到系统节能和环保的效果。Purpose of the invention: The purpose of the invention is to provide a humidity cascade treatment device for a low-humidity environment, which provides conditions for the control of the indoor heat and humidity environment of industrial buildings. The device effectively combines the three air humidity treatment methods of condensation dehumidification, solution dehumidification and rotary dehumidification through system optimization design, and is supplemented by other air state adjustment equipment to realize the control of supply air temperature and moisture content, and achieve system Energy saving and environmental protection effect.
技术方案：本发明的一种低湿环境的湿度梯级处理装置，包括沿室外新风方向依次设置的第一风机、初效过滤器和中效过滤器、第一表冷器、设置于所述第一表冷器后方的溶液除湿系统、第一新风支路、第二新风支路、第一回风支路和第二回风支路、与所述溶液除湿系统、第一新风支路和第二回风支路均连接的蒸汽压缩式热泵系统。溶液除湿系统包括设置于第一表冷器后方的溶液除湿器、进口与所述溶液除湿器底部的第一溶液出口连接的除湿溶液泵、与所述除湿溶液泵的出口连接的溶液冷却器、与所述溶液除湿器连接的溶液再生器、与所述溶液再生器连接的溶液加热器，所述溶液冷却器的溶液出口连接至溶液除湿器顶部的溶液布液器。第一新风支路和第二新风支路设置在溶液除湿器新风处理出口后方：所述第一新风支路中沿新风方向依次设置有第二表冷器、转轮除湿器、空气冷却器、第三表冷器和高效过滤器，高效过滤器的出风口与建筑物室内连通，第一回风支路与第一新风支路并联设置。Technical solution: A humidity cascade treatment device for a low-humidity environment of the present invention, comprising a first fan, a primary filter and a medium filter, a first surface cooler, and a first air cooler arranged in sequence along the outdoor fresh air direction. The solution dehumidification system behind the surface cooler, the first fresh air branch, the second fresh air branch, the first return air branch and the second return air branch, and the solution dehumidification system, the first fresh air branch and the second fresh air branch A vapor compression heat pump system connected to both return air branches. The solution dehumidification system includes a solution dehumidifier arranged behind the first surface cooler, a dehumidification solution pump whose inlet is connected to the first solution outlet at the bottom of the solution dehumidifier, a solution cooler connected to the outlet of the dehumidification solution pump, A solution regenerator connected to the solution dehumidifier, a solution heater connected to the solution regenerator, and a solution outlet of the solution cooler connected to a solution distributor on the top of the solution dehumidifier. The first fresh air branch and the second fresh air branch are arranged behind the fresh air treatment outlet of the solution dehumidifier: in the first fresh air branch, a second surface cooler, a runner dehumidifier, an air cooler, The third surface cooler and the high-efficiency filter, the air outlet of the high-efficiency filter communicates with the building, and the first return air branch and the first fresh air branch are arranged in parallel.
第二新风支路中设置有回热器，第二回风支路起始端与建筑物室内连通，末端与转轮除湿器的再生区间连接，回热器与转轮除湿器再生区间的混合再生空气出口连接，回热器的新风出口连接至第二回风支路和转轮除湿器的再生区间之间的管路上。蒸汽压缩式热泵系统包括沿制冷剂管路依次连接的压缩机、第一冷凝器、第二冷凝器、膨胀阀、第一蒸发器和第二蒸发器，所述第二蒸发器的制冷剂管道出口与压缩机的制冷剂进口连接，第一冷凝器与溶液加热器相连，第二冷凝器与第二回风支路相连，第一蒸发器与空气冷却器相连，第二蒸发器与溶液冷却器相连。A regenerator is installed in the second fresh air branch. The starting end of the second return air branch is connected to the indoor of the building, and the end is connected to the regeneration section of the runner dehumidifier. The mixed regeneration of the regenerator and the regeneration section of the runner dehumidifier The air outlet is connected, and the fresh air outlet of the regenerator is connected to the pipeline between the second return air branch and the regeneration section of the rotary dehumidifier. The vapor compression heat pump system includes a compressor, a first condenser, a second condenser, an expansion valve, a first evaporator, and a second evaporator sequentially connected along a refrigerant pipeline, and the refrigerant pipeline of the second evaporator The outlet is connected to the refrigerant inlet of the compressor, the first condenser is connected to the solution heater, the second condenser is connected to the second return air branch, the first evaporator is connected to the air cooler, and the second evaporator is connected to the solution cooling connected to the device.
进一步的，本发明装置中，所述溶液除湿系统中，还包括设置在溶液再生器和溶液加热器之间的再生溶液泵，溶液除湿器底部的第二溶液出口和溶液再生器底部的溶液进口之间由第一溶液平衡管道连接，溶液再生器的底部溶液出口由溶液管道连接至再生溶液泵的进口，再生溶液泵的出口连接至溶液加热器的溶液进口，溶液加热器的溶液出口连接至溶液再生器顶部的布液器。Further, in the device of the present invention, the solution dehumidification system also includes a regenerative solution pump arranged between the solution regenerator and the solution heater, a second solution outlet at the bottom of the solution dehumidifier and a solution inlet at the bottom of the solution regenerator They are connected by the first solution balance pipeline, the bottom solution outlet of the solution regenerator is connected to the inlet of the regeneration solution pump by the solution pipeline, the outlet of the regeneration solution pump is connected to the solution inlet of the solution heater, and the solution outlet of the solution heater is connected to Distributor on top of solution regenerator.
进一步的，本发明装置中，溶液加热器的溶液出口还分出一路，通过第二溶液平衡管道连接至溶液冷却器的溶液出口和溶液除湿器顶部布液器之间的管路上，用于除湿溶液的补给。Further, in the device of the present invention, the solution outlet of the solution heater is also divided into one path, which is connected to the pipeline between the solution outlet of the solution cooler and the top liquid distributor of the solution dehumidifier through the second solution balance pipeline, for dehumidification Solution supply.
进一步的，本发明装置中，第一回风支路的起始端与建筑物室内连通，末端与第二表冷器前的第一新风支路管路连接，第一回风支路上设置有从建筑室内抽取回风的第三风机。第二回风支路中沿回风方向依次设置有第四风机、空气加热器、电加热器，回热器的新风出口连接至第四风机和空气加热器之间的管路上，回热器的排风口连至室外；第二冷凝器的热水出口与空气加热器的热水进口相连，第二冷凝器的热水进口与空气加热器的热水出口相连。Further, in the device of the present invention, the starting end of the first return air branch is connected with the building room, and the end is connected with the first fresh air branch pipeline in front of the second surface cooler. The third fan for extracting return air in the building. In the second return air branch, a fourth blower fan, an air heater, and an electric heater are sequentially arranged along the return air direction, and the fresh air outlet of the regenerator is connected to the pipeline between the fourth blower fan and the air heater, and the regenerator The exhaust outlet of the second condenser is connected to the outside; the hot water outlet of the second condenser is connected with the hot water inlet of the air heater, and the hot water inlet of the second condenser is connected with the hot water outlet of the air heater.
进一步的，本发明装置中，第一冷凝器的热水出口与溶液加热器的热水进口相连，第一冷凝器的热水进口与溶液加热器的热水出口相连；第一蒸发器的冷水出口与空气冷却器的冷水进口相连，第一蒸发器的冷水进口与空气冷却器的冷水出口相连；第二蒸发器的冷水出口与溶液冷却器的冷水进口相连，第二蒸发器的冷水进口与溶液冷却器的冷水出口相连。Further, in the device of the present invention, the hot water outlet of the first condenser is connected with the hot water inlet of the solution heater, and the hot water inlet of the first condenser is connected with the hot water outlet of the solution heater; the cold water of the first evaporator is The outlet is connected to the cold water inlet of the air cooler, the cold water inlet of the first evaporator is connected to the cold water outlet of the air cooler; the cold water outlet of the second evaporator is connected to the cold water inlet of the solution cooler, and the cold water inlet of the second evaporator is connected to the The cold water outlet of the solution cooler is connected.
进一步的，本发明装置中，溶液再生器进风口之前设置有用于提供溶液再生时所需再生空气的第二风机。Further, in the device of the present invention, a second fan for providing regeneration air required for solution regeneration is provided before the air inlet of the solution regenerator.
进一步的，本发明装置中，溶液冷却器所需冷量由第二蒸发器供给，空气冷却器所需冷量由第一蒸发器提供，溶液加热器所需热量由第一冷凝器供给，空气加热器所需热量由第二冷凝器提供。Further, in the device of the present invention, the cooling capacity required by the solution cooler is supplied by the second evaporator, the cooling capacity required by the air cooler is provided by the first evaporator, the heat required by the solution heater is supplied by the first condenser, and the air The heat required by the heater is provided by the second condenser.
进一步的，本发明装置中，第一表冷器内使用的冷源为进口温度为7℃的冷冻水。Further, in the device of the present invention, the cold source used in the first surface cooler is chilled water with an inlet temperature of 7°C.
进一步的，本发明装置中，第二表冷器内使用的冷源为进口温度为7℃的冷冻水。Further, in the device of the present invention, the cold source used in the second surface cooler is chilled water with an inlet temperature of 7°C.
进一步的，本发明装置中，第三表冷器内使用的冷源为进口温度为7℃的冷冻水。Further, in the device of the present invention, the cold source used in the third surface cooler is chilled water with an inlet temperature of 7°C.
具体的，所述低湿环境的湿度梯级处理装置中，室外高温高湿的被处理空气(新风)首先由第一风机送入机组中，然后依次经过初、中效过滤器进行净化过滤处理。初步净化后的空气随后送入第一表冷器中进行第一级的冷却除湿。第一表冷器内使用的冷源为进口温度为7℃的冷冻水，经过第一表冷器处理后，被处理新风的温度和含湿量都大幅降低。但是由于使用的冷源温度有限，冷凝除湿后空气的湿度还是无法达到低湿环境的送风参数要求，此时新风的湿度还需要进一步的降低，因此在第一表冷器后设置溶液除湿器，用于完成被处理空气的二级除湿过程。Specifically, in the humidity cascade treatment device for low-humidity environment, outdoor high-temperature and high-humidity treated air (fresh air) is first sent into the unit by the first fan, and then passes through the primary and medium-efficiency filters for purification and filtration treatment. The air after preliminary purification is then sent to the first surface cooler for the first stage of cooling and dehumidification. The cold source used in the first surface cooler is chilled water with an inlet temperature of 7°C. After being treated by the first surface cooler, the temperature and moisture content of the treated fresh air are greatly reduced. However, due to the limited temperature of the cold source used, the humidity of the air after condensation and dehumidification still cannot meet the requirements of the air supply parameters in a low-humidity environment. At this time, the humidity of the fresh air needs to be further reduced. Therefore, a solution dehumidifier is installed after the first surface cooler. It is used to complete the secondary dehumidification process of the treated air.
所述低湿环境的湿度梯级处理装置中，溶液除湿系统主要包括溶液除湿器和溶液再生器、溶液除湿和再生泵、溶液冷却和加热器。被处理空气经第一表冷器处理后进入溶液除湿器，在溶液除湿器内空气与除湿溶液直接接触，空气中的水分进入除湿溶液中，但是由于溶液除湿过程伴随着热量的释放，除湿后被处理空气的温度会升高。因此经过溶液除湿器后，被处理空气的湿度进一步降低至基本接近低湿环境的送风湿度要求，但是空气温度会高于送风要求，被处理空气还需进一步的处理；In the humidity cascade treatment device for the low humidity environment, the solution dehumidification system mainly includes a solution dehumidifier and a solution regenerator, a solution dehumidification and regeneration pump, a solution cooling and a heater. The treated air enters the solution dehumidifier after being treated by the first surface cooler. In the solution dehumidifier, the air is in direct contact with the dehumidification solution, and the moisture in the air enters the dehumidification solution. However, because the solution dehumidification process is accompanied by heat release, after dehumidification The temperature of the treated air will increase. Therefore, after passing through the solution dehumidifier, the humidity of the treated air is further reduced to be close to the supply air humidity requirement of the low humidity environment, but the air temperature will be higher than the supply air requirement, and the treated air needs further treatment;
所述的溶液除湿系统中，溶液除湿器底部的溶液槽内设有两个出口，一个出口连接至除湿溶液泵，用于除湿溶液的循环；另一个出口由第一溶液平衡管道连接至溶液再生器的底部进口，用于输送除湿过后吸收了空气水分的稀溶液去再生器内完成溶液再生过程。溶液除湿器内的循环除湿溶液由溶液冷却器进行冷却，以维持空气处理过程中的温度要求，溶液冷却内使用的冷源是蒸汽压缩式热泵系统蒸发器提供的冷量。在溶液再生器中，第二风机将室外新风送入作为再生空气使用，除湿溶液在再生器内将水分传递到再生空气中，随后再生空气排出室外。溶液再生器内的溶液循环由再生溶液泵驱动，再生溶液通过溶液加热器达到再生温度要求，溶液加热器内使用的热源为蒸汽压缩式热泵系统冷凝器提供的冷凝热。在溶液再生器和溶液除湿器的循环管路之间设置有一个溶液补给管道，用于再生后的浓溶液向除湿器的补给，以维持空气处理时除湿器内除湿溶液的浓度。In the solution dehumidification system, there are two outlets in the solution tank at the bottom of the solution dehumidifier, one outlet is connected to the dehumidification solution pump for the circulation of the dehumidification solution; the other outlet is connected to the solution regeneration by the first solution balance pipeline The bottom inlet of the regenerator is used to transport the dilute solution that has absorbed air moisture after dehumidification to the regenerator to complete the solution regeneration process. The circulating dehumidification solution in the solution dehumidifier is cooled by the solution cooler to maintain the temperature requirements during the air treatment process. The cooling source used in the solution cooling is the cooling capacity provided by the evaporator of the vapor compression heat pump system. In the solution regenerator, the second fan sends outdoor fresh air to be used as regeneration air, and the dehumidification solution transfers moisture to the regeneration air in the regenerator, and then the regeneration air is discharged outside. The solution circulation in the solution regenerator is driven by the regeneration solution pump, and the regeneration solution reaches the regeneration temperature requirement through the solution heater. The heat source used in the solution heater is the condensation heat provided by the condenser of the vapor compression heat pump system. A solution supply pipeline is provided between the solution regenerator and the circulation pipeline of the solution dehumidifier, which is used to supply the regenerated concentrated solution to the dehumidifier, so as to maintain the concentration of the dehumidification solution in the dehumidifier during air treatment.
进一步的，所述低湿环境的湿度梯级处理装置中，被处理空气(新风)由溶液除湿器处理后分为两部分，分别进入第一新风支路和第二新风支路。其中，进入第一新风支路的被处理空气和第一回风支路中的回风混合，作为送风使用；进入第二新风支路的被处理空气和第二回风支路中的回风混合，作为转轮除湿器的再生空气使用。第一回风支路和第二回风支路的回风分别由第三风机和第四风机从建筑室内抽取，抽取的回风总量略小于整个装置对于建筑室内的送风总量。Further, in the humidity cascade treatment device for low-humidity environment, the air to be treated (fresh air) is divided into two parts after being treated by the solution dehumidifier, and enters the first fresh air branch and the second fresh air branch respectively. Among them, the treated air entering the first fresh air branch is mixed with the return air in the first return air branch, and used as air supply; the processed air entering the second fresh air branch is mixed with the return air in the second return air branch. The wind is mixed and used as the regeneration air of the rotary dehumidifier. The return air of the first return air branch and the second return air branch are extracted from the building room by the third fan and the fourth fan respectively, and the total amount of return air extracted is slightly smaller than the total amount of air supply of the whole device to the building room.
进一步的，所述低湿环境的湿度梯级处理装置中，第一新风支路中的被处理空气与第一回风支路中的回风混合后，混合空气的含湿量基本不变、而温度略有降低，混合空气最终作为送风进行进一步的处理：混合空气首先进入第二表冷器内，进行转轮除湿前的预冷却，第二表冷器内使用的冷源为7℃的冷冻水；预冷后的混合空气随后送入转轮除湿器的除湿区间进行深度除湿处理。转轮除湿过程伴随着较大幅度的放热，所以混合空气经转轮处理后也有较大的温升，要达到送风状态的温度要求必须在进行降温处理。本装置中，混合空气从转轮除湿器的除湿区间流出后，由空气冷却器和第三表冷器再次进行两级降温，空气冷却器内使用的冷源是蒸汽压缩式热泵系统蒸发器提供的冷量，第三表冷器使用的冷源为7℃的冷冻水。当混合空气的湿度和温度都处理完毕后，最后由高效过滤器进行最终的净化，随后满足了温湿度条件的混合空气被作为送风送入建筑室内，以处理建筑内的热湿负荷。Further, in the humidity cascade processing device in the low-humidity environment, after the air to be treated in the first fresh air branch is mixed with the return air in the first return air branch, the moisture content of the mixed air remains basically unchanged, while the temperature Slightly lower, the mixed air is finally used as air supply for further processing: the mixed air first enters the second surface cooler for pre-cooling before the dehumidification of the rotor, and the cold source used in the second surface cooler is 7°C refrigeration Water; the pre-cooled mixed air is then sent to the dehumidification section of the rotary dehumidifier for deep dehumidification treatment. The dehumidification process of the rotary wheel is accompanied by a large heat release, so the mixed air also has a large temperature rise after being processed by the rotary wheel, and cooling must be carried out to meet the temperature requirements of the air supply state. In this device, after the mixed air flows out of the dehumidification section of the rotary dehumidifier, the air cooler and the third surface cooler will perform two-stage cooling again. The cold source used in the air cooler is provided by the evaporator of the vapor compression heat pump system. The cold source used by the third surface cooler is chilled water at 7°C. After the humidity and temperature of the mixed air are processed, the final purification is carried out by the high-efficiency filter, and then the mixed air that meets the temperature and humidity conditions is sent into the building room as air supply to deal with the heat and humidity load in the building.
所述的低湿环境的湿度梯级处理装置中的转轮除湿器的再生半区的具体再生方法为：使用第二新风支路中的新风和第二回风支路中的回风的混合空气作为再生空气；其中，第二新风支路中的新风在于回风混合前在回热器中与转轮除湿器再生区间的排风进行热交换，从而实现对转轮除湿器排风的热回收。在回热器中升温的新风随后与第二回风支路中的回风相混合，混合后的再生空气随后经空气加热器和电加热器两次升温后送入转轮除湿器的再生区间。空气加热器内的热源为蒸汽压缩式热泵的冷凝器所提供的冷凝热。吸收了再生区间内水分的混合再生空气经回热器进行热量回收后排出室外。The specific regeneration method of the regeneration half area of the rotary dehumidifier in the humidity cascade treatment device in the low humidity environment is: use the mixed air of the fresh air in the second fresh air branch and the return air in the second return air branch as Regeneration air; wherein, the fresh air in the second fresh air branch is to exchange heat with the exhaust air in the regeneration section of the rotary dehumidifier in the regenerator before the return air is mixed, so as to realize the heat recovery of the exhaust air of the rotary dehumidifier. The fresh air heated up in the regenerator is then mixed with the return air in the second return air branch, and the mixed regeneration air is then heated twice by the air heater and the electric heater and then sent to the regeneration zone of the rotary dehumidifier . The heat source in the air heater is the condensation heat provided by the condenser of the vapor compression heat pump. The mixed regeneration air that has absorbed moisture in the regeneration zone passes through the regenerator for heat recovery and then is discharged outside.
进一步的，所述的低湿环境的湿度梯级处理装置的蒸汽压缩式热泵系统由压缩机、两个串联的冷凝器、膨胀阀和两个串联的蒸发器组成。其中，第一蒸发器的冷量用于供给空气冷却器，第二蒸发器的冷量用于供给溶液冷却器；第一冷凝器的冷凝热用于溶液加热器的溶液加热，第二冷凝器的冷凝热用于空气加热器中的空气加热。Further, the vapor compression heat pump system of the humidity cascade treatment device in a low-humidity environment is composed of a compressor, two condensers connected in series, an expansion valve and two evaporators connected in series. Among them, the cooling capacity of the first evaporator is used to supply the air cooler, and the cooling capacity of the second evaporator is used to supply the solution cooler; the condensation heat of the first condenser is used for solution heating of the solution heater, and the second condenser The heat of condensation is used for air heating in the air heater.
进一步的，所述的低湿环境的湿度梯级处理装置中的溶液除湿系统中所使用的除湿溶液为氯化钙溶液、溴化锂溶液和氯化锂溶液中的一种，或者氯化钙溶液与溴化锂溶液、以及氯化钙与氯化锂溶液的混合溶液；转轮除湿器的形式采用吸附式转轮，转轮由玻璃纤维和耐热的陶瓷材料作为内部支撑载体，同时加以高效吸湿介质材料而合成。Further, the dehumidification solution used in the solution dehumidification system in the humidity step treatment device in the low humidity environment is one of calcium chloride solution, lithium bromide solution and lithium chloride solution, or calcium chloride solution and lithium bromide solution , and a mixed solution of calcium chloride and lithium chloride solution; the form of the rotary dehumidifier adopts an adsorption runner, and the runner is made of glass fiber and heat-resistant ceramic material as an internal support carrier, and at the same time, it is synthesized by adding a high-efficiency moisture-absorbing medium material .
本发明应用了冷凝除湿、溶液除湿、转轮除湿等技术，可以对湿热的空气进行降温和深度除湿，以满足常用工业低湿环境的需求。该装置中空气的湿度处理流程依次包括冷凝除湿过程、溶液除湿过程和转轮除湿过程，主要设备有表冷器、溶液除湿系统和转轮除湿装置，以及蒸汽压缩式热泵系统。其中，空气的冷凝除湿过程由表冷器完成，为第一级除湿过程，表冷器使用的冷源为7℃的冷冻水；溶液除湿过程由溶液除湿系统完成，为第二级除湿过程，溶液除湿系统所需的冷热量由蒸汽压缩式热泵系统提供；转轮除湿装置完成的是空气的第三级深度除湿过程，转轮除湿装置的热量由蒸汽压缩式热泵和电加热器共同提供，再生空气使用的新风与室内回风的混合空气。The invention applies techniques such as condensation dehumidification, solution dehumidification, and wheel dehumidification, and can cool down and deeply dehumidify the hot and humid air, so as to meet the needs of common industrial low-humidity environments. The air humidity treatment process in the device includes condensation dehumidification process, solution dehumidification process and rotor dehumidification process in sequence. The main equipment includes surface cooler, solution dehumidification system, rotor dehumidification device, and vapor compression heat pump system. Among them, the air condensation dehumidification process is completed by the surface cooler, which is the first-stage dehumidification process, and the cold source used by the surface cooler is 7°C chilled water; the solution dehumidification process is completed by the solution dehumidification system, which is the second-stage dehumidification process. The cold and heat required by the solution dehumidification system is provided by the vapor compression heat pump system; the rotary dehumidification device completes the third-level deep dehumidification process of the air, and the heat of the rotary dehumidification device is provided by the vapor compression heat pump and the electric heater. , the mixed air of fresh air used for regeneration air and indoor return air.
有益效果：本发明与现有技术相比，具有如下优点：Beneficial effect: compared with the prior art, the present invention has the following advantages:
(1)能够实现工业建筑的热湿环境的精确控制，能够实现深度除湿，特别是能够满足工业低湿环境的需求，采用湿度梯级处理的模式，实现了冷热源应用于机组运行参数的合理匹配，整体系统的节能效果明显；(1) It can realize the precise control of the hot and humid environment of industrial buildings, and can realize deep dehumidification, especially to meet the needs of industrial low-humidity environment. The mode of humidity cascade treatment is adopted to realize the reasonable matching of cold and heat sources applied to the operating parameters of the unit , the energy saving effect of the overall system is obvious;
(2)与采用单一冷凝除湿方式的空调设备相比，在实现空气的深度除湿处理时，机组所使用的冷源温度得到了大幅提高，不需要额外的送风再热装置，整个系统的能耗和成本都得到了有效的降低；(2) Compared with the air-conditioning equipment using a single condensation dehumidification method, the temperature of the cold source used by the unit has been greatly increased when the air is deeply dehumidified, and no additional air supply and reheating device is required. The energy of the entire system Consumption and cost have been effectively reduced;
(3)与采用溶液除湿方式的空调设备相比，在实现空气的深度除湿处理时，本发明的设备占用空间和成本将大幅缩减，同时系统中所使用的除湿溶液的浓度得到有效的限制，避免了除湿溶液浓度使用过高而带来的机组腐蚀和再生能耗增加的问题，整个系统的稳定性也更好；(3) Compared with the air-conditioning equipment that adopts the solution dehumidification method, when realizing the deep dehumidification treatment of air, the space occupied by the equipment of the present invention and the cost will be greatly reduced, and the concentration of the dehumidification solution used in the system is effectively limited at the same time, It avoids the problems of unit corrosion and increased regeneration energy consumption caused by using too high concentration of dehumidification solution, and the stability of the whole system is also better;
(4)与使用转轮除湿的其它空调设备相比，本发明的送风参数的调节方式更为灵活，回热器和热泵冷凝热的有效利用大大降低了除湿转轮再生时的热量需求，而采用湿度梯级处理的方式相比转轮除湿器对空气的单级除湿处理方式，各段的负荷与冷源或其他控制参数的匹配度更好，能源利用效率更高。(4) Compared with other air-conditioning equipment using the dehumidification wheel, the adjustment mode of the air supply parameters of the present invention is more flexible, and the effective use of the condensation heat of the regenerator and the heat pump greatly reduces the heat demand when the dehumidification wheel is regenerated, Compared with the single-stage dehumidification treatment of air by the rotary dehumidifier, the humidity cascade treatment method has a better matching degree between the load of each section and the cold source or other control parameters, and the energy utilization efficiency is higher.
附图说明Description of drawings
图1是本发明的装置整体结构和流程示意图；Fig. 1 is a device overall structure and a schematic flow diagram of the present invention;
图中有：第一风机1，初效过滤器2，中效过滤器3，第一表冷器4，溶液除湿器5，除湿溶液泵6，溶液冷却器7，溶液再生器8，再生溶液泵9，溶液加热器10，第二风机11，第二表冷器12，转轮除湿器13，空气冷却器14，第三表冷器15，高效过滤器16，第三风机17，第四风机18，空气加热器19，电加热器20，回热器21，压缩机22，第一冷凝器23，第二冷凝器24，膨胀阀25，第一蒸发器26，第二蒸发器27，第一新风支路28，第二新风支路29，第一回风支路30，第二回风支路31，第一溶液平衡管道32，第二溶液平衡管道33，第一布液器34，第二布液器35。In the figure there are: first fan 1, primary filter 2, intermediate filter 3, first surface cooler 4, solution dehumidifier 5, dehumidification solution pump 6, solution cooler 7, solution regenerator 8, regeneration solution Pump 9, solution heater 10, second fan 11, second surface cooler 12, wheel dehumidifier 13, air cooler 14, third surface cooler 15, high efficiency filter 16, third fan 17, fourth Fan 18, air heater 19, electric heater 20, regenerator 21, compressor 22, first condenser 23, second condenser 24, expansion valve 25, first evaporator 26, second evaporator 27, The first fresh air branch 28, the second fresh air branch 29, the first return air branch 30, the second return air branch 31, the first solution balance pipe 32, the second solution balance pipe 33, the first liquid distributor 34 , the second liquid distributor 35 .
具体实施方式Detailed ways
结合附图1，并以处理室外空气状态为35℃、相对湿度为56％、含湿量为20g/kg，送风量为3000m3/h的夏季典型工况为例，进一步说明本发明的具体实施方式。In conjunction with accompanying drawing 1 , and take the outdoor air state as 35 ℃, relative humidity as 56%, moisture content as 20g/kg, air supply volume as an example in summer to further illustrate the present invention Detailed ways.
本发明的低湿环境的湿度梯级处理装置运行时，首先开启第一风机1将室外新风输送进入机组内，由第一风机1输入的新风量为1200m3/h。在第一风机1的后方随后依次设置初效过滤器2和中效过滤器3，用于净化室外新风。经净化后的新风随后送入第一表冷器4内进行第一级冷却除湿，第一表冷器4内使用的冷源为进口温度为7℃的冷冻水，经第一表冷器4处理后新风的状态变为21℃、8g/kg。空气的湿度处理流程依次包括冷凝除湿过程、溶液除湿过程和转轮除湿过程，其中初级除湿过程由第一表冷器5完成，采用的是冷凝除湿的方式；二级除湿过程由溶液除湿器5完成，采用的是溶液除湿的方式；深度除湿过程由转轮除湿器13完成，采用的是转轮除湿模式。When the humidity cascade processing device for low-humidity environment of the present invention is in operation, the first fan 1 is first turned on to transport the outdoor fresh air into the unit, and the fresh air volume input by the first fan 1 is 1200m 3 /h. After the first blower 1, a preliminary filter 2 and a medium filter 3 are sequentially arranged to purify outdoor fresh air. The purified fresh air is then sent to the first surface cooler 4 for first-stage cooling and dehumidification. The cold source used in the first surface cooler 4 is chilled water with an inlet temperature of 7°C. After the treatment, the state of the fresh air was changed to 21°C and 8g/kg. The air humidity treatment process includes condensation dehumidification process, solution dehumidification process and runner dehumidification process in sequence, wherein the primary dehumidification process is completed by the first surface cooler 5, which adopts the way of condensation dehumidification; the secondary dehumidification process is completed by the solution dehumidification device 5 Complete, the way of solution dehumidification is adopted; the deep dehumidification process is completed by the wheel dehumidifier 13, and the mode of wheel dehumidification is adopted.
本发明的低湿环境的湿度梯级处理装置中，新风的第二级除湿过程由溶液除湿系统完成。其中溶液除湿器5设置于第一表冷器4的正后方，除湿器5内除湿溶液的运行温度在20℃左右，经过除湿器5处理后新风的状态变为23℃、4g/kg。进一步的，所述溶液除湿器5的底部溶液槽内设有两个出口，第一溶液出口由溶液管道连接至除湿溶液泵6的进口，溶液除湿溶液泵6的出口连接至溶液冷却器7的溶液进口，溶液冷却器7的溶液出口连接至溶液除湿器5顶部的溶液布液器；溶液除湿器5的底部溶液槽的第二溶液出口和溶液再生器8底部的溶液进口之间由第一溶液平衡管道32相连接，用于输送除湿过后吸收了空气水分的稀溶液去再生器内完成溶液再生过程。进一步的，溶液再生器8底部的溶液出口由溶液管道连接至再生溶液泵9的进口，再生溶液泵9的出口连接至溶液加热器10的溶液进口，溶液加热器10的溶液出口管路分为两路，一路连接至溶液再生器8顶部的布液器，另一路连接至溶液冷却器7和溶液除湿器5顶部布液器之间的管路，用于浓溶液向溶液除湿器5的补给。溶液再生器8中的再生空气使用的是室外新风，由第二风机11送入，除湿溶液在再生器内将水分传递到再生空气中，随后再生空气排出室外。另外，溶液冷却器7中使用的冷源为蒸汽压缩式热泵系统中第二蒸发器27提供的冷量；溶液加热器10中使用的热源为蒸汽压缩式热泵系统中第一冷凝器23所提供的冷凝热。In the humidity cascade treatment device for low-humidity environment of the present invention, the second-stage dehumidification process of fresh air is completed by the solution dehumidification system. The solution dehumidifier 5 is set right behind the first surface cooler 4. The operating temperature of the dehumidification solution in the dehumidifier 5 is about 20°C. After being treated by the dehumidifier 5, the fresh air will be 23°C and 4g/kg. Further, the bottom solution tank of the solution dehumidifier 5 is provided with two outlets, the first solution outlet is connected to the inlet of the dehumidification solution pump 6 by the solution pipeline, and the outlet of the solution dehumidification solution pump 6 is connected to the outlet of the solution cooler 7. Solution inlet, the solution outlet of solution cooler 7 is connected to the solution distributor of solution dehumidifier 5 tops; The solution balance pipeline 32 is connected to each other, and is used to transport the dilute solution that has absorbed air moisture after dehumidification to the regenerator to complete the solution regeneration process. Further, the solution outlet at the bottom of the solution regenerator 8 is connected to the inlet of the regeneration solution pump 9 by the solution pipeline, and the outlet of the regeneration solution pump 9 is connected to the solution inlet of the solution heater 10, and the solution outlet pipeline of the solution heater 10 is divided into Two lines, one is connected to the liquid distributor at the top of the solution regenerator 8, and the other is connected to the pipeline between the solution cooler 7 and the liquid distributor at the top of the solution dehumidifier 5, which is used for supplying the concentrated solution to the solution dehumidifier 5 . The regeneration air in the solution regenerator 8 uses outdoor fresh air, which is sent in by the second fan 11, and the dehumidification solution transfers moisture to the regeneration air in the regenerator, and then the regeneration air is discharged outside. In addition, the cold source used in the solution cooler 7 is the cooling capacity provided by the second evaporator 27 in the vapor compression heat pump system; the heat source used in the solution heater 10 is provided by the first condenser 23 in the vapor compression heat pump system heat of condensation.
本发明低湿环境的湿度梯级处理装置中，新风由溶液除湿器5处理后分为第一新风支路和第二新风支路两部分。其中，第一新风支路中所分配的新风量为500m3/h，这部分新风与第一回风支路中的回风相混合，最终作为送风使用；第二新风支路中所分配的新风量为700m3/h，这部分新风在回收了转轮除湿器13的排风中的热量后将与第二回风支路中的回风相混合，作为转轮除湿器13的再生空气使用。In the humidity cascade processing device for low-humidity environment of the present invention, the fresh air is divided into two parts, the first fresh air branch and the second fresh air branch, after being treated by the solution dehumidifier 5 . Among them, the amount of fresh air distributed in the first fresh air branch is 500m 3 /h, and this part of fresh air is mixed with the return air in the first return air branch, and finally used as air supply; the distribution in the second fresh air branch The fresh air volume is 700m 3 /h, this part of fresh air will be mixed with the return air in the second return air branch after recovering the heat in the exhaust air of the rotor dehumidifier 13, as the regeneration of the rotor dehumidifier 13 air use.
本发明的优选实施例中，第一回风支路的回风由第三风机17从建筑室内抽取，回风的状态参数为26℃、4g/kg，此处的回风量为2500m3/h。第一新风支路中的新风与第一回风支路中的回风混合后，混合空气的状态为25.5℃、4g/kg，风量为3000m3/h。这部分混合空气(送风)随后送入第二表冷器12中进行转轮除湿前的预冷却，第二表冷器12内使用的冷源为进口温度为7℃的冷冻水，预冷却后混合空气的温度变为16℃。预冷后的混合空气随后送入转轮除湿器的除湿区间进行深度除湿处理。转轮除湿器13设置在第二表冷器12的后方，在进行转轮除湿时伴随着大量的热量释放，所以经处理后混合空气的状态变为28℃、2g/kg。In a preferred embodiment of the present invention, the return air of the first return air branch is extracted from the building room by the third fan 17, the state parameters of the return air are 26°C, 4g/kg, and the return air volume here is 2500m 3 /h . After the fresh air in the first fresh air branch is mixed with the return air in the first return air branch, the state of the mixed air is 25.5°C, 4g/kg, and the air volume is 3000m 3 /h. This part of mixed air (supply air) is then sent into the second surface cooler 12 for pre-cooling before the dehumidification of the runner. The cold source used in the second surface cooler 12 is chilled water with an inlet temperature of 7°C. The temperature of the aftermix air became 16°C. The pre-cooled mixed air is then sent to the dehumidification section of the rotary dehumidifier for deep dehumidification treatment. The rotary dehumidifier 13 is arranged behind the second surface cooler 12. When the rotary dehumidification is performed, a large amount of heat is released, so the state of the mixed air after treatment becomes 28°C and 2g/kg.
本发明的优选实施例中，第二新风支路中的新风进入回热器21中与转轮除湿器13再生区间的排风进行热交换，回收了热量后的新风状态参数为33℃、4g/kg。第二回风支路中的回风由第四风机18从建筑内室抽取，回风量为300m3/h，回风参数与第一回风支路中一致。第二新风支路与第二回风支路相混合后，混合空气作为转轮除湿器13的再生空气使用，再生空气总量为1000m3/h，参数为31℃、4g/kg。混合后的再生空气随后送入空气加热器19内加热，空气加热器19内的热源为蒸汽压缩式热泵的第二冷凝器24所提供的冷凝热，加热后的空气温度上升至38℃左右。电加热器20设置在空气加热器19之后用于对混合再生空气进行二次加热，以满足再生温度的要求，电加热后的混合空气温度上升至90℃左右。再生空气最后进入转轮除湿器13的再生区间，吸收了再生区间内水分的混合再生空气经回热器21进行了热量回收后排出室外。In a preferred embodiment of the present invention, the fresh air in the second fresh air branch enters the regenerator 21 for heat exchange with the exhaust air in the regeneration section of the runner dehumidifier 13, and the state parameters of the fresh air after recovering the heat are 33°C, 4g /kg. The return air in the second return air branch is drawn from the building interior by the fourth fan 18, the return air volume is 300m 3 /h, and the return air parameters are consistent with those in the first return air branch. After the second fresh air branch is mixed with the second return air branch, the mixed air is used as the regeneration air of the rotary dehumidifier 13. The total amount of regeneration air is 1000m 3 /h, and the parameters are 31°C and 4g/kg. The mixed regeneration air is then fed into the air heater 19 for heating. The heat source in the air heater 19 is the condensation heat provided by the second condenser 24 of the vapor compression heat pump. The temperature of the heated air rises to about 38°C. The electric heater 20 is arranged after the air heater 19 to reheat the mixed regeneration air to meet the requirement of the regeneration temperature, and the temperature of the mixed air after electric heating rises to about 90°C. The regeneration air finally enters the regeneration zone of the rotary dehumidifier 13, and the mixed regeneration air that has absorbed moisture in the regeneration zone passes through the regenerator 21 for heat recovery and then is discharged outside.
本发明低湿环境的湿度梯级处理装置中，混合空气(送风)由转轮除湿器13进行深度除湿后，送风的含湿量已经达到要求，但是送风温度仍需继续降低。因此，混合空气(送风)依次由设置在转轮除湿器13后方的空气冷却器14和第三表冷器15进行降温，直至送风温度满足18℃的要求。空气冷却器14中使用的冷源为蒸汽压缩式热泵第一蒸发器26所提供的冷量，第三表冷器15内使用的冷源为进口温度为7℃的冷冻水。在送风状态达到18℃、2g/kg后，送风最后由高效过滤器16进行深度净化后送入建筑室内，用以维持工业建筑内的环境状态。In the humidity cascade processing device for low-humidity environment of the present invention, after the mixed air (supply air) is dehumidified deeply by the rotary dehumidifier 13, the moisture content of the supply air has reached the requirement, but the temperature of the supply air still needs to continue to decrease. Therefore, the temperature of the mixed air (supply air) is successively lowered by the air cooler 14 and the third surface cooler 15 arranged behind the rotary dehumidifier 13 until the temperature of the supply air meets the requirement of 18°C. The cooling source used in the air cooler 14 is the cooling capacity provided by the first evaporator 26 of the vapor compression heat pump, and the cooling source used in the third surface cooler 15 is chilled water with an inlet temperature of 7°C. After the air supply state reaches 18°C and 2g/kg, the air supply is finally deeply purified by the high-efficiency filter 16 and then sent into the building room to maintain the environmental state in the industrial building.
蒸汽压缩式热泵系统可同时提供装置中溶液和空气的冷却、以及溶液和空气的加热所需的冷热量，其中溶液冷却器7所需冷量由第二蒸发器27供给、空气冷却器14所需冷量由第一蒸发器26提供；溶液加热器10所需热量由第一冷凝器23供给，空气加热器19所需热量由第二冷凝器24提供。The vapor compression heat pump system can simultaneously provide the cooling of the solution and the air in the device, and the cold heat required for the heating of the solution and the air, wherein the cooling required by the solution cooler 7 is supplied by the second evaporator 27, and the air cooler 14 The required cooling capacity is provided by the first evaporator 26 ; the heat required by the solution heater 10 is supplied by the first condenser 23 , and the required heat by the air heater 19 is provided by the second condenser 24 .
本发明低湿环境的湿度梯级处理装置中，所需的部分冷热量由蒸汽压缩式热泵系统提供。蒸汽压缩式热泵系统由制冷剂管路依次连接的压缩机22、第一冷凝器23、第二冷凝器24、膨胀阀25、第一蒸发器26和第二蒸发器27组成。其中，第一冷凝器23与第二冷凝器24串联连接，第一冷凝器23的热水出口与溶液加热器10的热水进口相连，溶液加热器10的热水出口与第一冷凝器23的热水进口相连；第二冷凝器24的热水出口与空气加热器19的热水进口相连，第二冷凝器24的热水进口连接至空气加热器19的热水出口。第一蒸发器26与第二蒸发器27串联连接，第一蒸发器26的冷水出口与空气冷却器14的冷水进口相连，第一蒸发器26的冷水进口与空气冷却器14的冷水出口相连；第二蒸发器27的冷水出口与溶液冷却器7的冷水进口相连，第二蒸发器27的冷水进口与溶液冷却器7的冷水出口相连。In the humidity cascade treatment device of the low humidity environment of the present invention, part of the required cold heat is provided by a vapor compression heat pump system. The vapor compression heat pump system consists of a compressor 22 , a first condenser 23 , a second condenser 24 , an expansion valve 25 , a first evaporator 26 and a second evaporator 27 connected in sequence by refrigerant pipelines. Wherein, the first condenser 23 is connected in series with the second condenser 24, the hot water outlet of the first condenser 23 is connected with the hot water inlet of the solution heater 10, and the hot water outlet of the solution heater 10 is connected with the first condenser 23 The hot water inlet of the second condenser 24 is connected to the hot water inlet of the air heater 19, and the hot water inlet of the second condenser 24 is connected to the hot water outlet of the air heater 19. The first evaporator 26 is connected in series with the second evaporator 27, the cold water outlet of the first evaporator 26 is connected with the cold water inlet of the air cooler 14, and the cold water inlet of the first evaporator 26 is connected with the cold water outlet of the air cooler 14; The cold water outlet of the second evaporator 27 is connected with the cold water inlet of the solution cooler 7 , and the cold water inlet of the second evaporator 27 is connected with the cold water outlet of the solution cooler 7 .
需要说明的是，在上述的具体实施方式中，典型工况下各工况点所给出的空气状态参数都是理想情况下的预估值，实际运行中机组参数可能会有波动和一定偏差，使得送风参数总能满足某特定工业建筑低湿环境的需求。It should be noted that in the above specific implementation, the air state parameters given at each working point under typical working conditions are estimated values under ideal conditions, and the unit parameters may fluctuate and have certain deviations in actual operation. , so that the air supply parameters can always meet the needs of a specific industrial building low-humidity environment.
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| CN111102661A (en) * | 2020-01-10 | 2020-05-05 | 同济大学 | An energy-saving variable dehumidification heat pump type rotary dehumidifier unit and its control method |
| CN111102661B (en) * | 2020-01-10 | 2023-11-24 | 同济大学 | An energy-saving variable dehumidification heat pump rotor dehumidification unit and its control method |
| CN112303755A (en) * | 2020-11-02 | 2021-02-02 | 广东申菱环境系统股份有限公司 | Rotary wheel dehumidification system and control method thereof |
| CN113007821A (en) * | 2021-04-12 | 2021-06-22 | 海南大学 | Indoor dehumidification method realized through window |
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| CN113446673A (en) * | 2021-06-08 | 2021-09-28 | 上海工程技术大学 | Direct-expansion type runner composite deep dehumidification fresh air system |
| CN113432211A (en) * | 2021-06-23 | 2021-09-24 | 清华大学 | Cascade composite type deep dehumidification air treatment system |
| CN113432211B (en) * | 2021-06-23 | 2022-05-03 | 清华大学 | Cascade composite type deep dehumidification air treatment system |
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