Plate type evaporating apparatus with steam heat pump

Abstract

The invention discloses a plate type evaporating apparatus with a steam heat pump, which comprises the steam heat pump, an evaporator and a separator, wherein the two input ends of the steam heat pump are respectively connected to a high-pressure driving steam inlet and a low-pressure driving steam inlet; the output end of the separator is connected with the steam heat pump through the low-pressure driving steam inlet; and the output outlet of the steam heat pump is connected with the evaporator or a pre-heater. The plate type evaporating apparatus has the following advantages that: (1) the energy-saving efficiency is high and the production cost is low; (2) the structure of the steam heat pump is very simple, because the steam heat pump is only internally provided with one nozzle and a rotating part is not required, the service life is long, and the running is reliable; (3) the apparatus is convenient to use and operate simply, an adjusting device is not required to be arranged if technical parameters are relatively stable, the apparatus is used according to designed parameters, and an automatic adjusting device can be additionally arranged to ensure the stability of outlet pressure of the apparatus; (4) the structure is compact, and the apparatus is convenient to mount; and (5) a silencer can be additionally arranged to reduce noise and meet the requirement of environmental protection.

Description

Technical field [0001] The invention belongs to the field of evaporator equipment, and particularly relates to a plate type evaporator with a steam heat pump. Background technique [0002] Plate heat exchanger is a new type of high-efficiency heat exchange equipment, which is widely used in petroleum, chemical industry, metallurgy, machinery, light industry, food, medicine, electrochemistry, power supply and other sectors. Due to the different requirements of the production process, the structure is slightly different. It is different, but its usual composition is to glue or fix a gasket on a plate, then place the upper and lower plates in a certain order between the fixed compression plate and the movable compression plate, and then use the clamping stud Clamp the fixed compression plate, plate, and movable compression plate. After pressing, the contacts of adjacent plates are in contact with each other, and a certain gap is maintained between the plates to form a fluid channel...

AI Technical Summary

Problems solved by technology

However, in the multi-effect evaporation process commonly used in light industry, chemical industry, chemical fertilizer and other industries, the secondary steam evaporated from the solution usually contains relatively high heat. If the heat is not recycled, it will cause serious waste of heat.

Images