Sectional combination type mixing chamber
A segmented combination and mixing chamber technology, applied in the direction of mixers, mixing methods, fluid mixers, etc., can solve the problems of uneven air mixing, high cost, easy burning, etc., to reduce the average enthalpy of air flow and save use Cost, the effect of a wide range of airflow temperature adjustment
Pending Publication Date: 2017-05-31
CHINA ACAD OF AEROSPACE AERODYNAMICS
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[0031] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0032] The present invention is described by taking the segmented combined mixing chamber matched with the laminated arc heater as an example. The outlet of the laminated arc heater is connected to the segmented combined mixing chamber.
[0033] Such as figure 1 Shown is the cross-sectional view of the structure of the segmented combined mixing chamber of the present invention. It can be seen from the figure that the segmented combined mixing chamber of the present invention includes a first flange 1, a second flange 5, n insertion sections 2, an intake ring 3 and Sealing ring 4, wherein n insertion sections 2 are sequentially connected to form a cavity structure, the first flange 1 and the second flange 5 are respectively fixedly connected to the insertion sections 2 at both ends of the cavity structure, the first flange 1 and the The externa...
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Abstract
The invention relates to a sectional combination type mixing chamber which comprises a first flange, a second flange, n inserting sections, air intake rings and sealing rings. The inserting sections are sequentially connected to form a cavity structure, the first flange and the second flange are respectively and fixedly connected with the inserting sections at two end of the cavity structure, the first flange or the second flange is connected with an external heater, the air intake rings are placed between every two neighboring inserting sections, and air flow generated from the external heater enters the cavity structure to be mixed with air flow entering the cavity structure through the air intake rings, wherein n is a positive integer and is greater than or equal to 1. By the arrangement, hot air flow of the sectional combination type mixing chamber is interfered by air introduced by independent intake channels of the inserting sections and the air intake rings, cold and hot air flows are sufficiently mixed, average temperature of the hot air flow is lowered, enthalpy value of the hot air flow is reduced, combination parts of the mixing chamber can be replaced independently after failure occurs, and use cost is saved.
Description
technical field [0001] The invention relates to a section-combined mixing chamber, which is suitable for an arc heater used in high-temperature wind tunnel tests, in particular to a high-enthalpy technology of a low-pressure, high-enthalpy, direct-flow laminated arc heater. Background technique [0002] In ground thermal environment simulation experiments, it is often necessary to reduce the enthalpy of the high-enthalpy airflow ionized and heated by the arc heater. The mixing chamber technology is one of the technical means to effectively solve this problem. The mixing chamber is connected at the outlet of the heater, downstream of the hot gas flow. The working gas is radially introduced from the mixing chamber and blown into the center of the hot air flow to fully mix the hot and cold air, which can effectively reduce the average enthalpy of the air flow. [0003] The existing mixing chamber is an integral mixing chamber, which is easy to burn out and has high cost, and t...
Claims
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Login to View More IPC IPC(8): B01F3/02B01F5/00B01F23/10
CPCB01F23/10B01F2025/919125B01F25/00
Inventor 杨忠凯陈连忠杨汝森杨国铭
Owner CHINA ACAD OF AEROSPACE AERODYNAMICS