CN201289168Y

CN201289168Y - Constant air conditioning punification room air treatment device

Info

Publication number: CN201289168Y
Application number: CNU2008201884495U
Authority: CN
Inventors: 王建和; 黄生荣; 李宗普
Original assignee: HUIZHOU CEE ELECTRONIC TECHNOLOGY Co Ltd
Current assignee: Huizhou China Eagle Electronic Technology Co., Ltd.
Priority date: 2008-08-06
Filing date: 2008-08-06
Publication date: 2009-08-12
Anticipated expiration: 2018-08-06

Abstract

The utility model relates to an air treatment device, in particular to an air treatment device in a constant temperature and humidity decontamination chamber. The air treatment device comprises an air inlet, an initially-active filter, an air conditioner, a pressurizing air unit, a humidifier, a heater, a medially-active filter and a highly-active filter; a pre-dehumidifying device is also installed between the air inlet and the initially-active filter; a central control unit (CCU) used for controlling the operation of the pre-dehumidifying device and a humidity transducer used for detecting humidity are arranged; and the humidity transducer is connected with the CCU, and transmits acquired humidity signals to the CCU. The air in the decontamination chamber which is treated by the air treatment device is less affected by external environment, the temperature and the humidity are stable, and the energy-saving effect are obvious by compared with the situation that an air conditioner is utilized to dehumidify singly.

Description

A kind of constant temperature and humidity clean room air processor

Technical field

The utility model relates to a kind of industrial production with the Integrated Processing Unit that purifies the air of a room.

Background technology

Medicine, microelectronics and printed circuit board (PCB) production process, higher to environmental requirement, need in constant temperature, constant humidity and dustless clean room, carry out usually, the environment of clean room has determined performance and quality, the especially humidity of product to a great extent.For example, production process of printed circuit board (PCB), the film of using and epoxy resin Prepreg (hereinafter to be referred as PP) sheet, printing ink covering process are all very high to the requirement of humidity.Can cause film irregular deformation if humidity exceeds claimed range, figure be shifted produce error; The PP sheet is solidified the glass transition temperature reduction occurs and be difficult for sclerosis waiting abnormal results; High humidity can make ink adhesion reduce in the printing ink covering process, and the copper face oxidation is serious.

Usually, the method that dehumidifies in the clean room mainly is to utilize the mode of main evaporator condensation in the central air conditioner system to make hydrogenesis in the circulating air, reduces air humidity; Auxiliary mode is that the mode by resistance heated adds hot-air, changes cooling again behind the air dew point.The method of humidification then is directly to adopt humidification bucket or atomizing spray, and whole system is carried out closed-loop control.The compressor of general central air-conditioning all adopts non-frequency stepless speed regulation mode in this system, and dehumidifying and refrigeration are finished under same operating mode.Reach the setting humidity requirement, main evaporator condensation work for a long time will cause the target area temperature low like this, needs the frequent starting electric heating system to keep the constant temperature requirement of clean room.Heating-refrigeration-heating makes energy waste serious repeatedly.Because dehumidification function mainly realizes by the airborne moisture of evaporator condensation of central air-conditioning, if central air-conditioning is operated in refrigeration intermittently during state, compressor is not worked.Indoor humidity is big when needing dehumidifying, has only the power ratio that strengthens main frame, makes it effectively finish dehumidifying work under the working condition, makes that the main engine power preparation is high.

And the variation of season and environment causes the air humidity fluctuation easily, and particularly rainy season, the air that air inlet sends directly enters the clean room by filtration treatment, causes clean room's humidity to stablize.

The utility model content

The problem that the utility model need solve provides a kind of energy-conservation, constant temperature and humidity clean room air comprehensive treating apparatus efficiently, makes clean room's ambient stable; Mainly be to solve humidity big, the problem of unstable of fluctuation relatively that is affected by the external environment under energy-conservation prerequisite.

Take following scheme according to above problem the utility model that needs to solve:

A kind of constant temperature and humidity clean room treatment system is provided, comprise air inlet, the roughing efficiency air filter that is used to purify air, air-conditioning, pressurization wind cabinet, humidifier, heater, medium effeciency filter, high efficiency particulate air filter successively, pre-dehumidification equipment is installed between air inlet and roughing efficiency air filter; And be provided for controlling the central controller of pre-dehumidification equipment work; Place humidity sensor behind air inlet position, medium effeciency filter respectively, described humidity sensor is connected with central controller, sends the moisture signal that collects to central controller.

Described pre-dehumidification equipment adopts the dried-air drier of being furnished with the low-power compressor.

The utility model is by installing dried-air drier at the air inlet place, drying machine adopts the high slit of large tracts of land evaporation coil to join the low-power compressor, form negative pressure by the booster fan in the clean room, the condensation air inlet is carried the moisture in the fresh air of coming, control is input to the air humidity scope at air-conditioning place, it is relatively stable to reach target area humidity, reduce the power configuration of air-conditioner host, solve the air intake humidity big ups and downs that cause because of season and environmental change in the time of energy savings, especially rainy season high humidity cause the situation that clean room's humidity can't be stable.The utility model also disposes central controller and humidity sensor, coordinates dried-air drier work, and extraneous humidity is not opened dried-air drier in setting range the time, and further saves energy has good practical value.

Description of drawings

Fig. 1 forms schematic diagram for the utility model;

Fig. 2 is the utility model workflow schematic diagram.

The specific embodiment

Understanding for the ease of those skilled in the art is described in further detail the utility model below in conjunction with accompanying drawing:

Constant temperature and humidity clean room 13 introduces extraneous fresh air by air inlet duct 14 as described in Figure 1.Described treating apparatus is positioned at air inlet duct, comprises air inlet 1, pre-dehumidification equipment (dried-air drier) 11, roughing efficiency air filter 2, air-conditioning 3, pressurization wind cabinet 4, medium effeciency filter 5, high efficiency particulate air filter 6; And central controller 10 and

humidity sensor

9,11 are set, described humidity sensor is connected with central controller, sends the moisture signal that collects to central controller; Auxiliary heater 7, humidifier 8 also are set at the air-conditioning place.

As Fig. 2, after extraneous fresh air entered by air inlet, sensor 9 detected ambient humidity and sends central controller to.

Central controller is judged, when ambient humidity surpasses 60% (in the humid air of mensuration, steam dividing potential drop and same temperature (T) and pressure (P) is the ratio of the saturation vapour pressure on pure water surface down), starts drying machine 11 and carries out pre-dehumidification treatments; Ambient humidity does not surpass 60%, does not then start drying machine.

After air draught filtered by roughing efficiency air filter is preliminary, in temperature, this link of humidity regulation, the moisture content by in the further condensation air inlet of air conditioner refrigerating carried out the secondary dehumidification treatments to air inlet, to reach clean room's humidity requirement.Because dehumidifying needs, air conditioner refrigerating, so gas flow temperature will be lower than the clean room and require temperature, at this moment, air-conditioning starts assisted heating device according to design temperature; When air ratio is dry, can open damping device.

Air-flow further purifies by medium effeciency filter.

For guaranteeing to purify the air of a room moisture stable and energy-conservation consideration, humidity sensor is set behind medium effeciency filter, before air-flow enters the clean room, detect humidity once more and whether reach requirement, need to judge whether unlatching or continue to open dried-air drier for central controller.

Last air-flow filters through high efficiency particulate air filter and reaches the clean clean room that requires to offer.

Above-mentioned is the described treating apparatus processing procedure of fresh air to external world, actual purifying the air of a room also will be through an inner loop process, promptly in clean room and air inlet duct air-conditioning, the air port once, wind cabinet place of pressurizeing, because pressurization wind cabinet effect, clean room's air is got back in the air channel by return air inlet, mix with fresh air, and add in the clean room through the satisfactory new air-flow of handling.Owing to the randomness of inner circulating air humidity, embodied the necessity of sensor 11.If outside air humidity is suitable, pre-dehumidification equipment is not opened, and the inner circulating air high humidity, causes when transfiniting with the mixed airflow humidity of fresh air, and central controller can be opened pre-dehumidification equipment this moment.Utilize pre-dehumidification equipment that fresh air humidity is further reduced, reach the purpose that reduces mixed airflow humidity.More single like this use air-conditioner dehumidifies on a large scale by refrigeration modes, and efficient is higher, simultaneously saves energy.

Claims

1, a kind of constant temperature and humidity clean room air processor, comprise air inlet, the roughing efficiency air filter that is used to purify air, air-conditioning, pressurization wind cabinet, humidifier, heater, medium effeciency filter, high efficiency particulate air filter successively, it is characterized in that: pre-dehumidification equipment is installed between air inlet and roughing efficiency air filter; And the humidity sensor that is provided for controlling the central controller of pre-dehumidification equipment duty and is used for Humidity Detection, described humidity sensor is connected with central controller, sends the moisture signal that collects to pre-dehumidifying central controller.

2, constant temperature and humidity according to claim 1 clean room air processor is characterized in that: described pre-dehumidification equipment adopts the dried-air drier of being furnished with the low-power compressor.

3, constant temperature and humidity according to claim 2 clean room air processor, it is characterized in that: described humidity sensor has two, lay respectively at air inlet position and medium effeciency filter after.