在博物馆里很多展出的文物由于其性质特殊所以需要存放在恒温恒湿展柜中，恒温恒湿展柜跟普通展柜的区别在与温湿度的控制，什么是恒温恒湿展柜的温湿控制中高效能比
Many of the relics on display in the museum are stored in the constant temperature and constant humidity display cabinet because of its special nature, and the difference between the constant temperature and humidity display cabinet and the common display cabinet is with the temperature and humidity control, and what is the high efficiency ratio in the temperature and humidity control of the constant temperature and constant humidity display cabinet.
在传统的恒温恒湿空调系统设计中，在温度和湿度的控制上，机组有风冷和水冷型两种，配备有多级电加热器和电极加湿罐及微电脑控制器。在冷却祛湿工况条件下，蒸发盘管使空气温度低于露点温度而去湿，通过加热器的再热控制室内温度保持在设定值。该类机组由于冷量的调节一般仅二档或三档，机组出口空气的露点温度不易稳定，对室内相对湿度的控制能力较低，一般宜用于相对湿度控制精度在±5%的试验室，目前大多采用了该种定型产品。
In the design of the traditional constant temperature and constant humidity air conditioning system, in the control of temperature and humidity, the unit has two kinds of air cooling and water cooling, equipped with multistage electric heater and electrode humidifying tank and microcomputer controller. Under the condition of cooling and humidifying, the evaporating coil makes the air temperature lower than the dew point temperature, and the temperature of the heater is kept in the set value by the reheat of the heater. This kind of unit is usually only second or third gear due to the adjustment of cooling capacity. The dew point temperature of the air of the unit is not easy to stabilize, and the control ability of the relative humidity in the room is low. Generally, it should be used in the test room with the precision of relative humidity control in 5%. At present, most of this type of product is used.
简单来说就是冷却、加温、除湿的过程。虽然效果比较明显，但是很显然这个过程的当中的空调能耗会比较大，尤其在湿度比较高的环境下，既要保证除湿的效果，又要保证预设的温度，此时的耗能量将远远大于一般机房空调的耗能量。
Simply speaking, it is the process of cooling, heating and dehumidification. Although the effect is obvious, it is clear that the air conditioning energy consumption in this process is relatively large, especially in the high humidity environment, not only to ensure the effect of dehumidification, but also to guarantee the temperature of the preset, at this time the energy consumption will be far greater than the energy consumption of the air conditioning in the general machine room.
为了避免这种情况，再设计上可以将室外空气处理到机器露点再同室内回风混合，进入主空调箱干冷却送风，把送风温差控制在相应的规范范围内；直到环境内冷负荷减小至一定数值，再用冷却盘管的冷冻水流量或进水温度的改变来调节冷量，进一步减小送风温差。在这类空调工程设计中，应该对其能耗和节能问题给予特别重视，提倡弃用二次加热，以降低能耗
In order to avoid this, the outdoor air can be treated to the dew point of the machine and then mixed with the indoor air return, into the dry cooling air of the main air conditioner, and control the air temperature difference within the corresponding standard range, until the cooling load in the environment is reduced to a certain value, and then the cooling water flow or the inlet temperature of the cooling coil is used. Change to adjust the cooling capacity, and further reduce the air temperature difference. In this type of air-conditioning design, special attention should be paid to its energy consumption and energy saving, and two heating should be abandoned to reduce energy consumption.