A recirculating cooling water conditioning assembly for an evaporation system

Abstract

The utility model discloses a circulating cooling water adjusting assembly for evaporation system, including pressure transmitter, pressure indication controller, pressure relay, parallel pipeline, pressure transmitter communicates with the five effect evaporator of evaporation system, the input of pressure indication controller is connected with pressure transmitter communication, and the output is connected with the input of pressure relay, the output of pressure relay is connected with parallel pipeline, and the manual butterfly valve both ends on circulating cold water outlet pipeline in the surface condenser of evaporation system are connected in parallel to the parallel pipeline. The utility model discloses a circulating cooling water adjusting assembly, solved the surface condenser circulating cooling water of evaporation system in the existing acrylic fiber recovery device, through manual regulating control of manual butterfly valve, easy to cause the vacuum fluctuation of evaporation system, also often make circulating cooling water excessive use, cause the problem of waste, greatly save production cost.

Claims

1. A circulating cooling water regulating component for an evaporation system, characterized in that, The system includes a pressure transmitter, a pressure indicator controller, a pressure relay, and a parallel pipeline. The pressure transmitter is connected to the five-effect evaporator of the evaporation system. The input terminal of the pressure indicator controller is communicatively connected to the pressure transmitter, and the output terminal is connected to the input terminal of the pressure relay. The output terminal of the pressure relay is connected to the parallel pipeline, which is connected in parallel to both ends of the manual butterfly valve on the circulating cold water outlet pipeline in the surface condenser of the evaporation system.

2. The circulating cooling water regulating component for an evaporation system according to claim 1, characterized in that: The parallel pipeline includes a pneumatic regulating valve, a first branch, and a second branch. The inlet of the pneumatic regulating valve is connected to the circulating cold water outlet pipeline in the surface condenser through the first branch, and the outlet is connected to the circulating cold water outlet pipeline in the surface condenser through the second branch. The pneumatic actuator of the pneumatic regulating valve is connected to the output end of the pressure relay.

3. A circulating cooling water regulating component for an evaporation system according to claim 2, characterized in that: A first gate valve is installed on the first branch.

4. A circulating cooling water regulating component for an evaporation system according to claim 2, characterized in that: A second gate valve is installed on the second branch.

5. A circulating cooling water regulating component for an evaporation system according to claim 4, characterized in that: A condensate drain line is also provided on the first branch, with one end of the condensate drain line located between the inlet end of the second gate valve and the pneumatic regulating valve.

6. A circulating cooling water regulating component for an evaporation system according to claim 5, characterized in that: A condensate drain valve is installed on the condensate drain pipeline.

7. A circulating cooling water regulating component for an evaporation system according to claim 1, characterized in that: The pressure indicator controller is also communicatively connected to the DCS system of the acrylonitrile recycling unit.

8. A circulating cooling water regulating component for an evaporation system according to claim 2, characterized in that: The pneumatic regulating valve is an air-opening single-seat pneumatic regulating valve.

Images