The ammonia refrigeration system of a cold storage includes at least one ammonia compressor, the ammonia compressor is connected with a gas-liquid separator through a pipeline, and the gas-liquid separator is connected with an ammonia refrigeration condenser through a gas valve. The ammonia refrigeration condenser is connected with a liquid storage device through a one-way valve, and the liquid storage device. A refrigeration expansion valve is connected with a filter, and the refrigeration expansion valve is connected with a pipeline to the ammonia refrigeration evaporator built in the cold storage; the ammonia refrigeration evaporator is connected with a configurable ammonia distribution station and a water pump, and the ammonia distribution station and the water pump are connected with a programmable controller PLC respectively; the programmable controller PLC is also connected with the temperature sensor in the cold storage respectively. The ammonia compressor is connected with the evaporator surface temperature sensor, and the pipeline in front of the ammonia compressor is also equipped with a flowmeter and a pressure regulating valve connected with the programmable controller PLC. The programmable controller PLC is also connected with the ammonia compressor by receiving the operation information of the above connection points, as well as the temperature sensor in the cold storage and the evaporator surface temperature sensor. Transferred temperature information, automatic regulation of ammonia distribution station and pump work, ammonia pump forced to automatically adjust the supply of liquid, to achieve high-efficiency refrigeration performance.
【技术实现步骤摘要】
一种冷库氨制冷系统的氨气体供液控制系统
本专利技术涉及的是一种冷库氨制冷系统的氨气体供液控制系统,属于冷库氨制冷系统
技术介绍
我国在上个世纪50年代以前,为食品冷冻冷藏配置的氨制冷系统多为直接膨胀供液,由于自控系统落后,一般采用人工调节,因劳动强度过大、不安全因素极多;从70年代开始,随着我国自行研制的制冷自控元件的问世以及引进国外自控元件,直接膨胀供液逐步被重力供液和氨泵强制供液所取代;80年代后,随着计算机微电子控制技术的不断发展,国内出现了以可编程序控制器(PLC)及用PLC组成的集散式控制系统(DCS控制系统)控制的、采用氨泵强制供液方式的全自动或半自动氨制冷系统,但由于当时尚无与氨互溶的合成润滑油,制冷系统仍配置的油分离系统,未能实现制冷系统的完全简化。
技术实现思路
本专利技术的目的在于克服现有技术存在的不足,而提供一种结构组成合理,使用操控方便,安全可靠性好,能实现制冷高效性能的冷库氨气体供液控制系统。本专利技术的目的是通过如下技术方案来完成的,一种冷库氨制冷系统的氨气体供液控制系统,所述的冷库氨制冷系统至少包括一氨压缩机、所述的氨压缩机通过管道连接气液分离器,所述气液分离器通过一气阀连接氨制冷冷凝器,所述氨制冷冷凝器通过一单向阀连接一储液器,储液器通过一过滤器连接一制冷膨胀阀,由制冷膨胀阀用管道连接冷库内置的氨制冷蒸发器;所述的氨制冷蒸发器连接有配置的氨液分配站和水泵,所述的氨液分配站和水泵分别与一可编程控制器PLC连接;所述的可编程控制器PLC还分别与冷库内气温传感器和蒸发器表面温度传感器连接。作为优选:所述的氨压缩机前的管道上还 ...
【技术保护点】
1.一种冷库氨制冷系统的氨气体供液控制系统,所述的冷库氨制冷系统至少包括一氨压缩机、所述的氨压缩机通过管道连接气液分离器,所述气液分离器通过一气阀连接氨制冷冷凝器,所述氨制冷冷凝器通过一单向阀连接一储液器,储液器通过一过滤器连接一制冷膨胀阀,由制冷膨胀阀用管道连接冷库内置的氨制冷蒸发器;其特征在于所述的氨制冷蒸发器连接有配置的氨液分配站和水泵,所述的氨液分配站和水泵分别与一可编程控制器PLC连接;所述的可编程控制器PLC还分别与冷库内气温传感器和蒸发器表面温度传感器连接。
【技术特征摘要】
1.一种冷库氨制冷系统的氨气体供液控制系统,所述的冷库氨制冷系统至少包括一氨压缩机、所述的氨压缩机通过管道连接气液分离器,所述气液分离器通过一气阀连接氨制冷冷凝器,所述氨制冷冷凝器通过一单向阀连接一储液器,储液器通过一过滤器连接一制冷膨胀阀,由制冷膨胀阀用管道连接冷库内置的氨制冷蒸发器;其特征在于所述的氨制冷蒸发器连接有配置的氨液分配站和水泵,所述的氨液分配站和水泵分别与一可编程控制器PLC连接;所述的...
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