Flow-equalizing ventilation device
A technology of ventilation device and flow limiting device, which is applied in the direction of ventilation system, space heating and ventilation, heating and ventilation control system, etc. It can solve the problems of unfavorable adjustment of structure, difficulty of connection and sealing, and change of tuyere size, etc., and achieves simple structure , Easy to adjust, easy to operate
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Embodiment 1
[0025] like figure 1 As shown, the ventilation duct 1 is an air supply duct, and a plurality of air outlets 2 are arranged on the air supply duct, and the air outlet 2 is a T-shaped pipe. Parallel and facing the open end 3 of the pipe, the end of all the tuyere 2 facing the windward section 5 is provided with a flow limiting device 4, that is, the windward section 5 and the flow limiting device 4 are respectively arranged at the two ends of the straight pipe on the upper part of the T-shaped pipe. The above-mentioned flow restricting device 4 may be a shutter valve or a flow restricting valve, and the opening amount of the flow restricting device 4 of the tuyere 2 arranged in sequence according to the opening ends 3 decreases sequentially.
[0026] In the air supply pipe, due to the flow of air in the pipe, there must be a dynamic pressure Pd consistent with the flow direction, and a static pressure Pj independent of the direction, and the total pressure in the pipe is the dyn...
Embodiment 2
[0030] like figure 2 As shown, the ventilation duct 1 is an exhaust duct, and a plurality of air outlets 2 are arranged on the exhaust duct, and the air outlet 2 is a T-shaped pipe. In parallel and facing away from the open end 3 of the pipe, a flow limiting device 4 is provided on one end of all the tuyere 2 facing the windward section 5, that is, the windward section 5 and the flow limiting device 4 are respectively arranged on the two ends of the straight pipe on the upper part of the T-shaped pipe. The flow restricting device 4 can be a shutter valve or a flow restricting valve, and the opening amount of the flow restricting device 4 of the tuyere 2 arranged in sequence according to the open end 3 increases sequentially.
[0031] For the exhaust duct, the negative pressure inside each tuyere allows the outside air to flow into the ventilation duct from the tuyere to achieve the purpose of exhausting. On the one hand, since it is necessary to ensure that the tuyere farthe...
Embodiment 3
[0035] On the basis of Embodiment 1 or Embodiment 2, as image 3 and Figure 4 As shown, an opening amount adjusting device 7 is provided on the current limiting device 4, and the controller 6 of the adjusting device 7 for the opening amount of the current limiting device 4 is installed outside the air supply duct or the exhaust duct, through The controller 6 can adjust the opening amount of the flow restriction device 4, for example, the electric or manual controller of the adjustment device of the flow restriction valve is installed outside the pipeline, or the electric or manual controller of the adjustment device of the adjustment device for controlling the opening amount of the shutter valve is installed Installed outside the pipe, etc. With the above structure, the current limiting device can be adjusted more conveniently. Of course, the controller of the above-mentioned adjustment device can also be installed inside the air supply duct or the air exhaust duct, but thi...
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