Temperature-control sealed door of warm-pressing experiment box

Abstract

The invention discloses a temperature-control air-tight door of a warm-pressing multi-purpose experimental box. The temperature-control air-tight door consists of wall panels of a box body, a door, a door frame, a door shaft, a door shaft fixed seat, a sealing ring and a rotary joint, wherein, the door is spliced and welded by the fixed seat milled with an observation window, a plurality of metal plates of parallel groove channels and a thin-gauge skin and the parallel groove channels at the interlayer of door wall carry out the heat exchanging circulation between flow-in fluid and flow-out fluid through a fluid inputting port and a fluid outputting port; door fixing holes with four screw threads are arranged at the periphery of the door frame and screwed into screw holes by four knobs each of which is provided with a spring, which increases the tightening force and the close pressing of the sealing ring, and can realize the sealing between the door and the door frame; the rotary joint consists of a metal hose, an exchanger and a rotary pipe and can keep internal fluid in a sealing state during the rotation. The temperature-control air-tight door can ensure that the temperature of the door conforms to that of the air in the box, thus basically avoiding the temperature influence of the door and the environment; and the temperature-control air-tight door can also increase the extrusion force between the door and the door frame so that the sealing ring can be contacted with the door more closely so as to effectively reduce the pressure leakage of the experimental box.

Description

(1) Technical field: [0001] The invention relates to a temperature-control sealing door of a gas temperature-pressure comprehensive experiment box, in particular to a gas temperature-pressure sealing door with a large variation range of gas temperature and pressure, high requirements on the sealing of the experiment box and internal gas temperature indicators, and requiring active temperature control . The utility model belongs to the technical field of laboratory temperature control equipment. (two) background technology: [0002] refer to figure 1 , the hermetic door 2 ' of gas temperature and pressure test box in the past has door shaft 4 ', handle 11 ', observation window 10 ', observation window fixed seat 9 ' and knob 6 '. The door frame 3' is installed on the test box wall plate 1', and the door shaft fixing seat 7', the sealing ring 8' and the door fixing hole 5' are welded above. There is an insulation layer on the outside of the door wall, and the cooperation of...

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Problems solved by technology

[0004] 1. The way the door shaft cooperates with the tightening knob cannot provide a large extrusion force, especially when the pressure difference between the inside and outside of the box is too large, the tendency of gas leakage will increase, and it is easy to cause pressure leakage on the side close to the door shaft

[0005] 2. There is a temperature difference between the door and the internal gas, and the door has a large mass and large heat capacity, which will continue to affect the internal gas temperature field

[0006] 3. When the difference between the gas temperature in the test box and the ambient temperature is too large, the joint between the door and the door frame will easily cause temperature leakage, and the uniformity of the temperature field near the door in the test box will be poor, which will cause the entire gas temperature field in the test box to be affected. influences

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