Cooling triangular unit provided with flow equalizing device with jet flow and flow equalizing alternating effect

Abstract

The invention discloses a cooling triangle unit provided with a flow equalizing device with a jet flow equalizing alternating effect, the cooling triangle unit comprises a cooling triangle unit and the flow equalizing device with the jet flow equalizing alternating effect, the cooling triangle unit comprises a cooling tripod and an air inlet shutter, and the flow equalizing device with the jet flow equalizing alternating effect comprises multiple stages of flow equalizing plates and multiple stages of jet flow gaps. The multiple stages of flow equalizing plates are composed of N1-stage flow equalizing plates, N2-stage flow equalizing plates, N (j-1)-stage flow equalizing plates and N (j)-stage flow equalizing plates, N (j) is an integer, N (j) is larger than or equal to 3, the distances between the outer ends of the N1-stage flow equalizing plates, the N2-stage flow equalizing plates, the N (j)-stage flow equalizing plates and the N (j)-stage flow equalizing plates extending inwards along the vertical central symmetry faces of the cooling triangular units are Lw1, Lw2-Lw (j-1) and Lw (j) respectively, and jet flow gaps exist between every two adjacent stages of flow equalizing plates of the N (j)-stage flow equalizing plates. On the basis that air enters the left side and the right side of the balance cooling triangle, multi-stage jet flow is formed through multi-stage jet flow gaps, multi-stage vortex formed by air entering the tower on the leeward side of the flow equalizing device is eliminated, and therefore the cooling performance of cooling columns on the left side and the right side is improved through the jet flow and flow equalizing alternating effect.

Description

technical field [0001] The invention belongs to the field of direct / indirect air cooling of thermal / nuclear power plants, and in particular relates to a cooling triangular unit equipped with a flow equalization device with alternate action of jet flow equalization. Background technique [0002] The cooling triangular unit is the key equipment for the air cooling tower to deal with the waste heat of the cold end unit. Compared with the wet cooling tower, the air cooling tower using the cooling triangular unit can save 65% to 90% of water consumption. With the gradual enhancement of our country's awareness of freshwater resource protection, indirect air cooling towers are being used more and more in thermal power plants in the Three North regions of my country. s), the existence of side wind makes it easy to form a horizontal vortex of the air flow inside the cooling triangular unit and the phenomenon of hot air backflow. In addition, the horizontal vortex caused by the air in ...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem that under crosswind conditions, the air entering the tower is easy to form eddy currents at various positions on the leeward side of the cooling triangular unit flow equalization device, thereby causing the cooling capacity of the cooling columns on the left and right sides of the cooling triangular unit to decrease. Application of the present invention: a cooling triangular unit equipped with a flow equalization device with alternating jet flow equalization, based on the flow equalization device with alternating jet flow equalization, on the basis of balancing the air intake on the left and right sides of the cooling triangular unit, through multi-stage jets The multi-stage jet flow formed by the gap eliminates the multi-stage vortex induced by the air entering the tower on the leeward side of the flow equalization device, thereby improving the cooling performance of the cooling columns on the left and right sides of the cooling triangular unit through the alternate action of jet flow equalization

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