Control method of steam heat pump for waste heat recovery

• Main Authors: YU WEI, YANG XU, DU XIANPING, HUA QINGMEI, XU GENSHAN, YANG ZHENGJUN
• Format: Patent
• Language: Chinese; English
• Published: 16.07.2024
• Subjects: AGEING; BEER; BIOCHEMISTRY; BLASTING; CHEMISTRY; CLARIFICATION; COMBINED HEATING AND REFRIGERATION SYSTEMS; ENZYMOLOGY; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; METALLURGY; METHODS OF STEAM GENERATION; MICROBIOLOGY; MUTATION OR GENETIC ENGINEERING; PASTEURISATION; PRESERVATION; PURIFICATION; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; SPIRITS; STEAM BOILERS; STEAM GENERATION; STERILISATION; VINEGAR; WEAPONS; WINE

The invention discloses a control method of a steam heat pump for waste heat recovery. A steam heat pump unit is connected to an original inlet end header pipe of a grain steaming pot; the steam heat pump unit comprises a plurality of unit bodies connected in parallel and a heat source water tank, and the heat source water tank is connected with the unit bodies and used for supplementing water. The method comprises the steps that S1, steam in an original inlet end header pipe is maintained at a grain steaming environment theoretical value; s2, theoretically calculating the numerical value of the gas output of the single unit body at different outlet temperatures of the heat source water tank and the theoretical output time of the single unit body; s3, the ratio of the flow of the inlet end header pipe to the gas output of a single unit body serves as the upper limit value of the number of the started unit bodies; and S4, the corresponding steam saturation temperature value is obtained through the steam heat p