Product Overview

The W series hydraulic injector is a mechanical device with three effective functions: vacuum pumping, condensation, and drainage. It uses a certain pressure of water flow to be sprayed out through symmetrically distributed nozzles with a certain inclination, converging at a focal point. Due to the high velocity of the jet water flow, negative pressure is formed around it, creating a vacuum inside the chamber. In addition, due to the direct contact between secondary steam and the jet water flow, heat exchange occurs, and some of the steam condenses into water. A small amount of uncondensed steam and uncondensed gas also mix and squeeze with the high-speed jet water flow due to friction, and are discharged through the expansion tube, creating a higher vacuum inside the chamber. Hydraulic jets are widely used in vacuum and evaporation systems for processes such as vacuum pumping, vacuum evaporation, vacuum filtration, vacuum crystallization, drying, and deodorization. They are equipment widely needed in sugar, pharmaceutical, chemical, food, salt, MSG, milk, fermentation, as well as in light industry and national defense sectors. (Material, stainless steel, cast iron)
However, at present, the manufacturer of the hydraulic ejector is small and the variety is not complete. For this reason, in recent years, our company has adopted the structure of multi nozzle and steam ring (guide plate) to improve the design, as well as the multi-stage pump to feed water. The installation height is only 4.5 meters, which improves and improves its working performance. It is progressiveness to a certain extent. It is an innovation of vacuum condensation equipment and is welcomed by users all over the world.

Structure and advantages

The hydraulic injector consists of components such as the body, cover, nozzle, nozzle seat plate, guide plate, expansion tube, and one-way valve. The nozzle is made of stainless steel, and the nozzle seat plate is made of high-quality steel. The remaining parts are cast iron. The nozzle adopts a multi nozzle structure to achieve larger water vapor contact, which is conducive to heat exchange and achieves better vacuum effect. The nozzle seat plate is processed with precision and high accuracy to accurately concentrate the jet water flow at the same focal point. The guide plate is used to slow down the flow rate of steam (or air), so that the steam is evenly introduced into the chamber to prevent the jet water from deviating and reduce the pumping efficiency. The entire device has a compact and precise structure, high strength, and is used in vacuum evaporation systems. Due to the ability to combine the condensation effect of the condenser and the pumping effect of the vacuum pump in one device, the process flow is greatly simplified. Compared with the original vacuum pump and old condenser device, it can save equipment such as vacuum pump, condenser, and water separator, and has the following advantages:
(1) Hydraulic injectors have small volume, light weight, and compact structure. And the efficiency is relatively high, with lower power consumption than the vacuum pump system, saving investment.
(2) Easy to operate and maintain, no need for dedicated personnel to manage, low noise due to the absence of mechanical transmission components, and no need to consume lubricating oil.
(3) It can be installed in a low position outdoors, occupying a small area and saving factory building space and installation costs.