Vacuum glass high and low temperature observation window device with temperature control compensation

Abstract

The invention discloses a vacuum glass high-low-temperature observation window device having a temperature compensation function. The vacuum glass high-low-temperature observation window device comprises an observation window, wherein the observation window is of a borosilicate glass or quartz glass integrally formed circular truncated cone structure and comprises a first end face, a second end face and a side peripheral face, and the inside of the observation window is a vacuum cavity. The observation window is supported and fixed through a fixing clamp plate and connected with a temperature control device. The observation window is simple in structure, good in heat insulation performance, large viewing angle and excellent transmitting function, ad the first end face can bear 0.5kg pressure load ad can stably work on a -150-+170 DEG C extreme high-low temperature and large temperature difference application occasion. When the device works under the low-temperature working condition, temperature compensation is automatically performed on the observation window so as to enable the second end face to work at the temperature approximating to the room temperature.

Description

technical field [0001] The invention relates to an observation window device, in particular to a vacuum glass high and low temperature observation window device with temperature control compensation. Background technique [0002] During the test of thermal environment simulation devices or systems such as high and low temperature chambers, it is necessary to observe the internal test conditions in real time to gain insight into the operating conditions of the test products, especially when emergencies occur. Due to the harsh temperature conditions and dark environment inside the box, a camera can be installed inside to observe the internal situation in real time, but the cost is high, so the observation window is usually used. Since there is a large temperature and pressure difference inside and outside the box, it is necessary that the inside of the observation window can withstand extremely harsh working conditions, and at the same time play a good role in heat insulation ...

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Problems solved by technology

Another example is that the glass observation window whose publication number is CN202370366U is a single-layer glass structure, which is used for high temperature resistance and vibration resistance, but it cannot be used for heat insulation and pressure resistance, and cannot be used for extreme high and low temperature situations.

Therefore, although the conventional observation window structure has a certain airtight and see-through performance, it cannot meet the requirements of extreme high and low temperature and harsh environments with large temperature differences.

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