A valve connection device for wind tunnel experiments

A connection device and wind tunnel experiment technology, which is applied to sleeve/socket connections, pipes/pipe joints/fittings, passing components, etc., can solve problems such as high temperature and high pressure gas leakage, flange seal failure, pipeline deformation, etc., to eliminate Effect of bending moment, avoiding seal failure, and preventing axial deflection moment

Active Publication Date: 2022-04-08
INST OF MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology

[0004] In view of the technical problems existing in the prior art that the high-temperature valve connection method forms a bending moment on the connecting pipe, causing pipe deformation or flange sealing failure, resulting in high-temperature and high-pressure gas leakage, the purpose of the present invention is to provide a valve connection device for wind tunnel experiments , especially the valve lifting device for pure air wind tunnel experiments

Method used

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  • A valve connection device for wind tunnel experiments
  • A valve connection device for wind tunnel experiments
  • A valve connection device for wind tunnel experiments

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Experimental program
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Embodiment 1

[0038] Such as figure 2 As shown, a valve connection device for wind tunnel experiments is provided with a lifting device, and the lifting device includes a flange clamp 1, an elastic support mechanism 2 and a sliding base 3, and the lower end of the sliding base 3 is fixed on the ground. More specifically, the lower end of the base 3 is fixed on the ground through anchor bolts, the upper end of the base is connected to the elastic support mechanism 2, and the top end of the elastic support mechanism is set as a flange clamp 1, through which a set of flange clamps The high temperature valve 4 is flange-locked on the connecting pipe 5 of the high temperature valve 4 .

[0039] The flange clamp 1 is configured as a ring structure, and its inner diameter is consistent with the diameter of the external flange of the high temperature valve 4 . More specifically, the flange clamp 1 is set as a circular structure with an inner diameter of 245 mm, and the circular structure is forme...

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Abstract

The present invention belongs to the technical field of wind tunnel experimental equipment. In view of the technical problem that the existing connection method forms a bending moment to the connecting pipe in the prior art, causing the deformation of the pipe or the failure of the flange seal, resulting in the leakage of high-temperature and high-pressure gas, the purpose of the present invention is to provide a A valve connection device for wind tunnel experiments, provided with a lifting device, the lifting device includes a flange clamp, an elastic support mechanism and a sliding base, the lower end of the sliding base is fixed on the ground, and the upper end of the sliding base is connected to the elastic supporting mechanism , the top of the elastic support mechanism is set as a flange clamp, and the flange clamp is set on the connecting pipe of the high temperature valve to lock the flange of the high temperature valve. The device can greatly reduce the longitudinal extension of the heat storage heater or the bending moment of the valve body on the connecting pipe during preheating, avoiding the possibility of flange leakage at the clamp and greatly improving safety.

Description

technical field [0001] The invention belongs to the technical field of wind tunnel experiment equipment, and in particular relates to a valve connection device for wind tunnel experiments. Background technique [0002] The wind tunnel is a necessary equipment for carrying out simulated flight tests on the ground. The regenerative pure air wind tunnel achieves rapid temperature rise through the convective heat exchange between the air and the regenerator, and can provide relatively clean high-enthalpy gas incoming flow, which truly reflects the incoming flow components, heat and chemical characteristics faced by the aircraft. Due to the advantages of high total heating temperature, large flow rate and long working time, it has been widely recognized internationally. However, due to its high technical threshold, few pure air wind tunnels have been successfully developed at home and abroad. The heat storage heater is one of the core components of the pure air wind tunnel. In o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L21/08
CPCF16L21/08
Inventor 高占彪崔政坤岳连捷
Owner INST OF MECHANICS CHINESE ACAD OF SCI
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