Climatic chamber: types, features, technical characteristics. Scope of application of the climatic chamber heat / cold / moisture

Climatic chambers of heat-cold-moisture (TXB) are intended to create special conditions that are closest to natural. However, obsolete units did not give the necessary result, so you had to constantly use additional equipment. Previously, the whole process took a lot of time and effort and did not always end successfully. But since the emergence of improved models, the general situation has undergone drastic changes.

General concept

A 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 the air humidity parameters, as well as control various chemical and aggressive substances. Such devices are now widely used in many industries, engineering and other areas. The work of all research centers is built on the most accurate results, therefore it is simply impossible to do without the use of climate cameras.

Design Highlights

The climatic chamber has a special design, which includes the following components:

• Shield. It houses all electronic equipment. It is installed on the side wall, the control is automatic.
• The steam generator is responsible for controlling the humidity inside the device. Water vapor is produced by boiling water or by ultrasound. Works in local automation mode.
• The working space is made in the form of a kind of container equipped with heat exchangers. It is thanks to him that the most comfortable test mode is provided. Since the container has an observation window, any changes that occur during the experiment can be observed.
• The cooling structure is installed inside the frame and fastened to a special mounting plate. Its main function is the uniform distribution of air throughout the area.

Due to the presence of locking mechanisms, the climate chamber is not able to open spontaneously, which prevents moisture penetration and completely excludes any changes in operating temperature. Its body is made of a steel profile covered 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 blocks, if the volume of the chamber is not more than 500 liters. If the size exceeds this parameter, it is installed only permanently.

Climatic chambers of heat / cold / moisture (TBH)

A special feature of this type of unit is the steam generators used for operation. Depending on the internal device, they can be:

• Cold - ultrasound;
• Hot - by heating.

To ensure that the tests are carried out with the greatest accuracy, the walls are equipped with a special thermal insulation material. And inside their surface is lined with high-quality stainless steel.

Most often, the heat / moisture / cold climatic chamber is equipped with a two-stage refrigeration unit.

Technical characteristics of the TVX 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 h + 0.5 h;
• Heating to + 18 ° C occurs in 2 - 2.5 hours;
• Holding this temperature 2.5 - 3 hours;

In order for all elements to function with maximum accuracy, the climate chamber is equipped with a controller.

Specifications:

• Discreteness of indication - 0.1 ° С;
• The time to reach the maximum temperature is 75 minutes;
• The time to reach the minimum temperature is 90 minutes;
• Type of cooling - air;
• Temperature range - from -60 to + 75 ° C;
• The error is ± 2 ° С.

How to choose the KTX: the main criteria

First of all, before you choose a certain model of the climate chamber, you need to pay attention to the following points:

1. Equipping with modern control systems.
2. Automatic control.
3. Possibility of acquisition with standard or individual additional equipment (parameters of coincidence).
4. Rapid change in temperature conditions, especially important when installing a cold climate chamber (electronic freon control).
5. Reputation of the manufacturer and delivery time.
6. Technical characteristics of compressors.
7. Use of environmentally friendly coolers in the chamber.
8. Presence of the controller.
9. Materials from which the unit is made.

Key points

• Moving the camera is strongly discouraged, as the work of the pressure calibrator may deteriorate.
• An important element is also a cooling device, which ensures a reduction in temperature at the right time.
• Thanks to the availability of automation, any spontaneous trips and overheating are completely excluded.
• Automatic control panel is placed on a special panel, which prevents its damage.

In order for the climate chamber to function properly, various high-pressure substances are used, which make it possible to reduce the expected loss in power and operating temperature, as well as the differences in the main indicators that are clearly monitored throughout the experiment.