Climatic chambers heat-cold-moisture (TXW) are designed to create special conditions that are closest to natural. However, outdated units did not give the desired result, so I had to constantly use additional equipment. Previously, this whole process took a lot of time and effort and did not always end successfully. But since the advent of improved models, the overall situation has undergone dramatic changes.
General concept
The modern climate chamber is a kind of capacity that allows you to accurately reproduce the necessary environmental conditions. For example, a certain temperature regime, ultraviolet radiation, change and maintain air humidity parameters, as well as control various chemical and aggressive substances. Such devices today are widely used in many industries, engineering and other fields. The work of all research centers is based on the most accurate results, so it is simply impossible to do without the use of climate chambers.
Design Highlights
The climate chamber has a special design that includes the following components:
- Shield. It houses all the electronic equipment. It is installed on the side wall, control is automatic.
- The steam generator is responsible for controlling the humidity inside the device. Water vapor is produced by boiling water or by exposure to ultrasound. It works in local automation mode.
- The working space is made in the form of a kind of packaging equipped with heat exchangers. It is thanks to him that the most comfortable test mode is provided. Since the container has a viewing window, you can observe any changes that occur during the experiment.
- The cooling structure is mounted inside the frame and mounted on a special mounting plate. Its main function is the uniform distribution of air over the entire area.
Due to the presence of locking mechanisms, the climate chamber is not able to spontaneously open, which prevents the penetration of moisture and completely eliminates any changes in operating temperature. Its body is made of a steel profile coated with a special protective compound. This material allows you to maintain the necessary technical characteristics for a long time, as well as a presentable appearance. The design is mounted on special roller pads, if the chamber volume is not more than 500 liters. If the size exceeds this parameter, then it is installed only stationary.
Climatic chambers of heat / cold / moisture (TBX)
A feature of this type of units are the steam generators used for operation. Depending on the internal device, they are:
- cold - exposure to ultrasound;
- hot - by heating.
In order for the tests to be carried out with the greatest accuracy, the walls are equipped with special heat-insulating material. And inside their surface is sheathed with high-quality stainless steel.
Most often, the climate chamber heat / moisture / cold is equipped with a two-stage refrigeration unit.
Technical characteristics of the TXV camera
The test cycle is performed according to the following algorithm:
- cooling to -50 ° C takes up to 2.5 - 3 hours;
- holding at this temperature 2.5 hours + 0.5 hours;
- heating to + 18 ° C occurs in 2 - 2.5 hours;
- holding this temperature for 2.5 - 3 hours;
In order for all elements to function with maximum accuracy, the climate chamber is equipped with a controller.
Specifications:
- display resolution - 0.1 ° C;
- time to reach maximum temperature - 75 min;
- the time to reach the minimum temperature is 90 minutes;
- type of cooling - air;
- temperature range - from -60 to + 75 ° ;
- the error is ± 2 ° C.
How to choose CTX: main criteria
First of all, before deciding on a specific model of the climate chamber, you need to pay attention to the following points:
- Equipped with modern control systems.
- Automatic control.
- Possibility of completing with standard or individual additional equipment (combination parameters).
- A quick change in temperature conditions, this is especially important when the climatic chamber of the cold is installed (electronic control of freon).
- Manufacturer reputation and delivery time.
- Technical characteristics of compressors.
- Use of environmentally friendly coolers in the chamber.
- The presence of a controller.
- Materials of which the unit is made.
Key points
- Moving the chambers is strongly discouraged, as the pressure calibrator may deteriorate.
- An important element is also a cooling device, which provides a decrease in temperature at the right time.
- Thanks to the presence of automation, any spontaneous shutdowns and overheating are completely eliminated.
- The automatic control panel is placed on a special panel that prevents damage to it.
In order for the climate chamber to function properly, various high-pressure substances are used, which make it possible to reduce the expected loss of power and operating temperature, as well as the differences in the main indicators, which are clearly monitored throughout the experiment.