Cavitation Heat Pumps

System Introduction

The cavitation heat pump water treatment system consists of cavitation host, water storage tank, circulation pump, control box, etc. It is a comprehensive water treatment system that integrates the three functions of cavitation, heat production and oxygenation. Its cavitation host uses pump impeller to generate high pressure at high speed, through the advanced cavitation device, let the water cavitation, the large molecular group of water into small molecular group of water, the formation of water softening, while releasing heat, the water becomes hot, so as to achieve the effect of heating water without heating elements. In addition, the nano bubble oxygenation device is added to mix the air in the form of tiny bubbles in the water to achieve the purpose of oxygenation of breeding water and sewage treatment. The control system realizes the drive and management of the whole system, with remote control function, even in the place without WIFI signal, as long as you can call, you can control the operation and stop of the whole system without leaving home, and can monitor and feedback the operation condition of the whole system online.

Framework diagram

Cavitation principle

Cavitation is due to the local low pressure of the liquid flow system (below the saturation vapor pressure of the liquid at the corresponding temperature) so that the liquid evaporates and the formation of cavitation bubbles (i.e., gas nuclei, generally below the radius of 20 μm) explosive growth of the phenomenon. Assume that the upstream and downstream pressure of the contraction section are P1 and P2, the contraction section pressure is Pc, water velocity is Vc, when Pc down to the local water saturation vapor pressure Pv, that is, Pc ≤ Pv, in the contraction section of the local low-pressure area will produce cavitation, cavitation bubbles in the contraction section of the boundary layer and the formation of breeding, in the low-pressure area to obtain growth. As can be seen, the essence of cavitation is the fluid in the combined effect of power and heat, the liquid medium local liquid ~ gas phase change process. When the cavitation bubble reaches the downstream due to the pressure increase, the cavitation bubble collapse moment produces a very short strong pressure pulse, near the wall of the micro-jet speed up to 70 ~ 180 m / s, the impact force on the surface of the object up to 140 ~ 170 MPa, micro-jet diameter of about 2 ~ 3 um, the surface by the micro-jet impact number of about 100 ~ 100 times / (s * cm2). The formation of local hot spots in the tiny space around the bubble generates extreme high temperature and pressure, accompanied by complex physical, chemical, mechanical, electrochemical and thermal reactions. Most of the micro-jets with strong impact pressure act directly or indirectly on the sea life fouling layer on the surface of the facility to separate the sea life fouling from the material surface, thus playing a cleaning role. If air is then introduced in the contraction section, a large number of nano-bubbles are formed to dissolve in the water for oxygenation purpose.

Typical Applications