Air port adjustable static pressure box with uniform outlet air

Abstract

The invention discloses an air port adjustable static pressure box with uniform outlet air, which comprises a static pressure box shell, an air inlet, an air outlet and a silencing material adhered to the inner surface of the static pressure box shell, wherein a hole plate is arranged in the middle of the static pressure box shell and located above the air inlet, a partition plate is arranged below the hole plate, the space in the static pressure box shell is divided into a steady flow region, and an inlet air region and an outlet air region by the hole plate and the partition plate; and a groove is arranged at the bottom of the outlet air region of the static pressure box shell, a vertical flow guiding section is formed by extending a certain distance downwards along the groove, a slot is arranged at one side of the groove, and a regulating plate with a flow guiding arc section is installed on the slot and moves in the vertical flow guiding section through the depth extending into the slot to regulate outlet air amount of the air outlet. Through introducing the partition plate and the hole plate, the flowing distance of air is lengthened, the ratio of dynamical pressure converted to static pressure is increased, the uniformity of the outlet air is enhanced, the operation noise of equipment is reduced, the requirements for outlet air of the seam air inlet are better satisfied, and the application range of a static pressure box is widened.

Description

technical field [0001] The invention relates to a static pressure box with adjustable tuyere and uniform air outlet, in particular to a top-supply or upward-supply ventilation air-conditioning system using slit tuyeres. The equipment is suitable for offices, residences, public catering kitchens, and hydropower stations. Environmental control of various building spaces such as the main factory building. Background technique [0002] The schematic diagram of top air supply or upward air supply using slit air outlet is as follows figure 1 As shown, the air from the slit air outlet is vertically downward, relying on the attachment effect of the side wall - the Coanda Effect (Coanda Effect), to extend its range and reduce its mixing with indoor air, sending fresh air to the ground to the maximum extent , and spread along the floor, while forming a parameter field similar to that of the under-mounted displacement ventilation airflow organization in the work area, it better solves...

AI Technical Summary

Problems solved by technology

[0005] Although some existing improved small static pressure boxes can achieve better noise reduction effect and realize multiple air outlets, they still have disadvantages such as poor airflow stabilization effect and low uniformity of air transmitted to the room when they are working. This makes it unsuitable for air supply from slit air outlets with an aspect ratio greater than 10; and the existing large plenum boxes are difficult to popularize and apply because of their bulky, high cost, and cumbersome installation.

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