How to choose a walk-in environment cabin?

什么是步入式环境室?

步入式环境室设计用于精确模拟、监测和控制、化学、农用化学品制造设施中长期、中期和加速稳定性研究所需的温度和湿度条件。

步入式温度(和湿度)试验箱用于测试建筑材料和电子领域,以及用于与人和环境相关的广泛研究和开发。

环境室是一个封闭的空间,可以控制温度和湿度等环境条件。

步入式环境箱的维护保养

步入式环境室利用连接在一起的泡沫板形成各种大小的房间。步入式环境试验箱适用于行业大型零件、半成品、成品的温湿度环境测试,如电脑终端、汽车零部件。

环境试验箱主要由控制面板、配电盘、加湿库板、送风机、加热器、加湿器、冷冻机组合组成。步入式环境箱According to用户要求,参照JB/T4283-91设计制造;GB/T14294-93。

主要用于制造和维持恒温恒湿空间,恒温恒湿装置的制冷、加热、除湿、加湿、补充加湿水等全自动控制,设备可附加(选配)换气功能,可允许人员在内部长期操作时,应在内部产生不良挥发性气体。

1、箱体的环保步入式箱体需要由专人操作和维护。严格遵守系统操作规程,避免他人违规操作系统。

2、Chambers环保步入式试验箱长时间停止使用会影响系统的有效使用寿命因此,系统应至少每 10 天开机运行一次;不要在短时间内反复使系统运行停止,每小时启动次数应少于5次,每次启停时间间隔不少于3rain;请勿在低温下打开步入式温湿度测试系统的门,以免损坏门封胶带。

3、应建立系统的使用档案,以方便系统的维护和维修。文件的使用应记录系统每次运行的开始和结束时间(日期)、测试类型、环境温度;当系统发生故障时,应尽可能详细地描述故障;系统的维护和维修也应尽可能详细地记录。

4. Regularly conduct a monthly test on the mains switch (leakage circuit breaker) to ensure that it can function as a leakage protector when the load capacity is met . To do this, first make sure the main power switch is "ON", ie the system is powered on, then press the test button. If the switch of the leakage circuit breaker is toggled down, the function is normal.

5. The main box of the walk-in temperature-controlled Environment Chamber should be protected during use, and it should not be strongly collided with sharp or blunt objects.

6. In order to ensure the normal and clean supply of cooling water, clean the cooling water filter of the refrigerator every 30 days or so. If the local air quality is poor, clean the water supply of the cooling water tower. The content of dust in the air is very high. Generally, it should be around 7 days Clean the cooling tower reservoir.

7. The leakage, overload and short-circuit protection characteristics of the leakage switch are set by the manufacturer, and cannot be adjusted at will during use, so as not to affect the performance; the leakage switch is disconnected due to a short circuit, and the contact needs to be checked. If the main contact is seriously burned or pitted, it needs to be repaired .

8. Place the test product in the welded walk-in environmental chamber, and there should be a certain distance from the suction and exhaust outlets of the air-conditioning channel, so as not to hinder the air circulation.

9. Action test of over-temperature protector. The temperature of the over-temperature protector is set to be lower than that of the tank, if E0.0 alarms and beeps, it is functioning normally. After the above test is completed, the setting value of the temperature protection should be re-set appropriately, otherwise it may cause improper suspension.

10. Use a vacuum cleaner to clean the dust in the power distribution room and waterway room once a year. Once a month, clean and dry the freezer with a dry cloth.

Fault Analysis of Refrigeration System of Walk-in Environment Chamber

The Walk-in Chambers compressor is the core component of the refrigeration of the entire Test Chamber. If there is no refrigeration or insufficient cooling capacity during the test, it means that the compressor and accessories of the equipment are faulty and need to be repaired or replaced.

Once the compressor fails, the cold test cannot be carried out, and the specific reason needs to be analyzed from where.

The general reasons are as follows:

  • Refrigeration failure of the whole system, such as impurities, especially during maintenance, particles enter the cylinder to cause stuck, or the system uses inferior refrigerant or adds wrong refrigerant, etc.

  • Too much refrigerant can be added, too much will directly damage the compressor and cannot run, but adding too little will not achieve the desired effect. The amount of refrigerant added should be constant according to the air pressure, which is better.

  • 系统配件问题,如冷凝散热器散热不好,造成内压过大,而电流升高温度继续升高,那么循环如此必然导致压缩机损坏。

  • 压缩机组装位置不正确,狭窄的散热无法放置,或压缩机安装到内部机顶,距离太远,成为蒸汽制冷剂无法返回压缩机造成的不足压缩机制冷剂并导致正常运行也可能存在室内外机连接管弯曲,导致制冷剂压力过高压缩机过热,也会导致压缩机损坏。

以上四点就是步入式试验箱压缩机经常出现故障的具体原因,所以试验设备从安装到使用的所有细节都要注意,一旦压缩机损坏,更换压缩机的费用是更高。

步入式环境箱施工条件

步入式环境试验箱是一种非标生产的大型环境试验箱,在开始的设计中要考虑到许多因素,例如如安装场地、制作材料、使用配置等。还应结合用户的实际要求进行科学设计、精密生产,以确保成品在符合国家标准的同时更具有实用性。

1、需要先在车间进行生产、加工的材料、零部件分门别类包装发货,并做好编号和标记,便于现场安装时选择查找。

2、如果使用PU聚氨酯、岩棉等材料制作,需要在工厂预组装一次,现场找出并解决因加工精度、设计不良、地板不标准、建筑尺寸等造成的设备尺寸误差。例如,踢腿、加固、包裹和吊顶等材料的预算和准备。

3、劳动保护问题:如果用岩棉做保温层,施工时会有岩棉屑漂浮在空气中。岩棉对人体的伤害当然是人尽皆知的,它的保护需要高度重视。需要佩戴适当级别的防护口罩和衣服。然后需要通风以避免在狭窄的环境中施工。

4. The wall material of the aging room (library) needs to be covered with a protective film on the surface to ensure that the surface is not affected by the appearance of the upper and lower loading and unloading, lifting, and installation at the scratches. foul smell. If the protective film is not attached for a long time, it can be easily torn off, and there is no big problem. If the storage board or stainless steel is too long, it will be very difficult to uncover, and sometimes it will take three to five days to complete, which will delay the construction progress.

5. Fragile parts, such as explosion-proof lamps, observation window glass, etc., should be packed in strong wooden boxes and packed with shockproof cushioning materials to ensure that they will not be damaged during transportation.

6. Wall stability and durability issues. If oversized (no 25 m², 50 m3 is not oversized), the roof needs reinforcement. There are many ways of reinforcement, such as: walk-in climate chamber plus square steel bracket, and the ceiling is tightened, depending on the customer's production requirements. Among them, there are also many technologies for fixing the tie rod, which will not be repeated here.

7. Lighting problem: It is necessary to install a special explosion-proof lamp, which must not only ensure the brightness, but also ensure that the high-low temperature will not be damaged. That is, the practice of using ordinary lights is either ignorance or fooling customers in order to save costs.

8. The thickness of the library board should be determined according to the temperature requirements and energy consumption. Of course, the thicker the better, so that the capacity loss is small, but the cost of production materials will be high, which requires a balance calculation to determine.

9. The problem of door seam sealing: first, high precision is required for production, and the gap is small when splicing; second, silicone sealants are required, which are resistant to high-low temperatures ; Shedding and leaking. It also needs to be mildew and moisture resistant.

10. The material is resistant to high-low temperature, and humidity problems. The use of materials such as wires needs to be resistant to high temperature, humidity, and low temperature according to the national standard. For professional manufacturers, this is basically common sense.


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