An electric preheating heater suitable for wind tunnel

A heater and electric preheating technology, which is applied to the control of air heaters, fluid heaters, and fluid heaters, and can solve the problems of heater usage frequency and low efficiency

Active Publication Date: 2022-07-05
CHINA ACAD OF AEROSPACE AERODYNAMICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by this application is: the use frequency and efficiency of the heater in the wind tunnel in the prior art are relatively low

Method used

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  • An electric preheating heater suitable for wind tunnel
  • An electric preheating heater suitable for wind tunnel
  • An electric preheating heater suitable for wind tunnel

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Embodiment Construction

[0027] In the solutions provided in the embodiments of the present application, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0028] In order to better understand the above technical solutions, the technical solutions of the present application will be described in detail below through the accompanying drawings and specific embodiments. It is not a limitation on the technical solutions of the present application, and the embodiments of the present application and the technical features in the embodiments may be combined with each other under the condition of no conflict.

[0029] see figure 1 , an electric preheating heater suitable for a wind tunnel provided by an embodiment of the present applica...

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Abstract

The present application discloses an electric preheating heater suitable for a wind tunnel. The heater includes: a heater main body, a plurality of groups of heating parts, a power supply, a preheating temperature control system, an air inlet and an air outlet, wherein the heating The main body of the device includes an inner hollow cavity structure composed of a shell and a heat insulation layer; each heating part includes a heat storage element and two heating elements; multiple groups of heat storage elements are arranged in the cavity structure along the axis of the cavity structure, and the two heating elements are arranged in the cavity structure. A heating element is inserted into the heat storage element along the direction perpendicular to the axis of the cavity structure and passing through the casing and the heat insulation layer. The cold air in the structure is used for heating; the power supply is used to provide electrical energy for the heating element; the preheating temperature control system is connected to the power supply and used to control the power supply to provide electrical energy for the heating element. The present application solves the technical problems of low frequency of use and low efficiency of heaters in wind tunnels in the prior art.

Description

technical field [0001] The present application relates to the technical field of wind tunnel heating, and in particular, to an electric preheating heater suitable for use in wind tunnels. Background technique [0002] In the field of conventional hypersonic wind tunnels and supersonic wind tunnels with heating requirements, in order to prevent condensation during the high-speed expansion of the gas or to achieve part of the temperature simulation requirements, the incoming flow must be heated. In the application of large-scale wind tunnels of the order of 0.5m, the heating temperature of the airflow in this kind of working condition test is generally 1000K, and the effective heating power of the airflow needs to reach 8000KW ~ 50000KW. Generally, a single large-size metal regenerative heating is used. heater or multiple parallel heaters. Generally, metal regenerative heaters include two types of metal regenerative heaters that are preheated by combustion and those that are ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24H3/04F24H9/1863F24H9/20F24H15/37
CPCF24H3/0405F24H9/1863F24H9/2071
Inventor 易欢赵旭飞李跃晏硕黄炳修石运军
Owner CHINA ACAD OF AEROSPACE AERODYNAMICS
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