Constant-temperature constant-humidity testing tank

Abstract

The invention discloses a constant-temperature constant-humidity testing tank which comprises a main tank body, wherein a work room, an insulating layer, an air circulating device, a control device, a refrigerating device, a dehumidifying device, a heating device, a humidifying device and a drain pipe are arranged in the main tank body; the humidifying device comprises a heating water tank and a water supplementing device; the heating water tank is connected with the work room through pipelines; the water supplementing device comprises a water supplying box, a water balancing box and a water storing chamber which are orderly arranged from top to bottom; the water supplying box is connected with the water balancing box through a first pipeline, the water balancing box is connected with the heating water tank through a U-shaped pipe, two ends of the U-shaped pipe are respectively connected with the bottom of the water balancing box and the bottom of the heating water tank, the water balancing box is connected with the water storing tank through a second pipeline, the water storing tank is connected with the water supplying box through a third pipeline, a water level switch is arranged in the water supplying box, and a water level pipe is arranged in the water balancing box upwards, and is communicated with the first pipeline. The precision of the humidity in the work room is greatly improved.

Description

technical field [0001] The invention relates to a test device, in particular to a constant temperature and humidity test chamber. Background technique [0002] The constant temperature and humidity test chamber is used to test the performance of materials in various environments and test the heat resistance, cold resistance, dry resistance and humidity resistance of various materials. The constant temperature and humidity test box in the prior art includes a main box body, which is provided with a working room, an insulation layer, a refrigeration device, a dehumidification device, a heating device, a humidification device, a control device, a drain pipe and an air circulation device, There is an insulating layer between the main box and the working room, and the air circulation device is arranged in the insulating layer. The control device is used to control the coordinated work of the devices in the main box. The drain pipes are respectively connected with the working room...

AI Technical Summary

Problems solved by technology

When the water level in the water replenishment box is lower than the water level switch in the water replenishment box, the water supplier replenishes water to the water replenishment box, and the water replenishment box replenishes water to the heating water tank. When replenishing water, the boiling water in the heating water tank often flows back; When the water level switch in the water supply box is lower than the water level switch, the water supply will start. The one-time supply of water will make the boiling water in the heating water tank become non-boiling, and it will not be able to provide enough steam to the specimen box, thus greatly affecting the accuracy of the humidity in the working room. Spend

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