Spiral-flow type defoaming device

Abstract

A spiral-flow type defoaming device is characterized by comprising a spiral-flow guide defoaming body. A flow inlet for tangentially guiding flow into the spiral-flow guide defoaming body is arranged outside the spiral-flow guide defoaming body, a foam collector is arranged in the spiral-flow guide defoaming body, and a power-driven brush defoamer is assembled on the foam collector. The spiral-flow type defoaming device is reasonable in structural design and obvious in defoaming effect and drives foam to be collected in the foam collector by spiral-flow centrifugal force for guiding water with foam in the spiral-flow guide defoaming body, and mechanically driven brush defoaming agents can perform low-cost efficient defoaming operation. The spiral-flow type defoaming device is simple in structure and low in operating cost and can be widely applied to defoaming operation for refrigerating cycle by surface water in a power plant.

Description

technical field

[0001] The invention belongs to the defoaming technology of water bodies, and in particular relates to a swirl type defoaming device for mechanical cooling of water bodies in power plants. Background technique

[0002] Thermal power or nuclear power plants generally adopt a once-through water supply system that uses surface water such as seawater as a cooling water source, which will inevitably lead to a large amount of circulating cooling water being redischarged into the environmental water body. In order to reduce operating costs and ensure the safe operation of the water intake and drainage system, under normal circumstances, power plant drainage adopts a siphon well outflow method, that is, a siphon well is provided at the front edge of the drainage outlet, and a certain elevation weir is installed inside the siphon well to reduce the tide level in the open sea. The impact of the change on the upstream section of the siphon well. In view of the constant...

Examples

Embodiment Construction

[0017] Such as figure 1 As shown, the swirl defoaming device is mainly composed of a swirl defoamer 10, a foam collector 20 and a brush defoamer, the swirl defoamer 10 is a drum structure, the swirl defoamer The flow defoaming body is provided with a tangential direction diversion into the inflow port 10 in the swirl diversion defoaming body, and the inflow port 10 of the tangential direction diversion and the barrel wall of the swirl diversion defoamer make the incoming foamy water generate a swirl Flow force, the centrifugal force generated by the swirl makes the foam gather towards the center of the swirl defoamer. The outer wall of the swirl diversion defoaming body is also provided with a water outlet 12, the water outlet 12 is arranged along the tangential direction of the swirl diversion defoamer outer wall, and the horizontal position of the water outlet 12 is lower than that of the flow. The inlet 11 and the water outlet 12 allow the water after centrifugation to sep...

technical field

[0001] The invention belongs to the defoaming technology of water bodies, and in particular relates to a swirl type defoaming device for mechanical cooling of water bodies in power plants. Background technique

[0002] Thermal power or nuclear power plants generally adopt a once-through water supply system that uses surface water such as seawater as a cooling water source, which will inevitably lead to a large amount of circulating cooling water being redischarged into the environmental water body. In order to reduce operating costs and ensure the safe operation of the water intake and drainage system, under normal circumstances, power plant drainage adopts a siphon well outflow method, that is, a siphon well is provided at the front edge of the drainage outlet, and a certain elevation weir is installed inside the siphon well to reduce the tide level in the open sea. The impact of the change on the upstream section of the siphon well. In view of the constant...

Examples

Embodiment Construction

[0017] Such as figure 1 As shown, the swirl defoaming device is mainly composed of a swirl defoamer 10, a foam collector 20 and a brush defoamer, the swirl defoamer 10 is a drum structure, the swirl defoamer The flow defoaming body is provided with a tangential direction diversion into the inflow port 10 in the swirl diversion defoaming body, and the inflow port 10 of the tangential direction diversion and the barrel wall of the swirl diversion defoamer make the incoming foamy water generate a swirl Flow force, the centrifugal force generated by the swirl makes the foam gather towards the center of the swirl defoamer. The outer wall of the swirl diversion defoaming body is also provided with a water outlet 12, the water outlet 12 is arranged along the tangential direction of the swirl diversion defoamer outer wall, and the horizontal position of the water outlet 12 is lower than that of the flow. The inlet 11 and the water outlet 12 allow the water after centrifugation to sep...

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