Multi-steam-source steam spraying heat pump

Abstract

The invention discloses a multi-steam source injection heat pump. The steam injection heat pump is provided with a driving steam chamber, a suction chamber, a mixing chamber, an expansion chamber and an outlet pipe. The drive steam chamber is provided with an independent drive steam inlet connected to the drive steam pipe, and the elbow type suction chamber is provided with a suction steam inlet connected to the low-pressure steam pipe. The characteristic is that the drive steam chamber is composed of multiple independent small drive steam pipes. Each small driving steam chamber corresponds to a nozzle and a driving steam inlet. Each needle-shaped valve core is connected with a needle-shaped valve stem, and the needle-shaped valve stem passes through the sealing packing chamber and is connected with the valve stem connecting piece outside the driving steam chamber, and the other end of the valve stem connecting piece is connected with the main valve stem. The other ends of the two or more expansion chambers are all connected with the outlet pipe. The invention has simple structure and high thermal efficiency, and can be applied to different driving steam sources and different low-pressure steam so as to obtain stable outlet pressure and temperature.

Description

technical field [0001] The present invention relates to a steam injection heat pump, in particular to a multi-steam source steam injection heat pump which operates in conjunction with a large steam turbine to match multiple steam extractions or supply certain parameters (pressure, temperature) in the field of steam energy saving. The present invention can use two or more steams with different parameters (pressure, temperature) as the driving steam of the jet heat pump, and can also inhale low-pressure steam with different parameters (pressure, temperature), and use one actuator to drive the multi-core needle adjustment The valve controls the parameters (pressure, temperature) of the outlet steam. Background technique [0002] In the transformation of large condensing units into heating units or energy-saving fields, multi-nozzle steam injection heat pumps are required. The inventor once provided "An Adjustable Multi-Nozzle Jet Heat Pump" in the patent application No. 201510...

AI Technical Summary

Problems solved by technology

However, the jet heat pump (also called heat pump) of this structure can only use steam of one pressure level as the driving steam, and steam that cannot meet more than two different parameters (pressure, temperature) can be used as the driving steam of the jet heat pump to inhale the same or Low-pressure steam with different parameters (pressure, temperature)

The patent number is 200910012285.X multi-steam source steam injection heat pump, the low-pressure intake pipeline is connected by two straight round pipes at right angles, which has the disadvantage of large flow loss of low-pressure intake steam

Images