Overview

This document provides detailed technical specifications and descriptions of thermoregulating units designed for controlling the temperature of various fluids including oil, water, and pressurized water. The units are equipped with pumps, heaters, cooling systems, and control electronics to maintain precise temperature regulation for industrial process applications.

1. Oil Thermoregulating Units (Range +40 / +200°C)

Key Components and Features

• Pump: Peripheral centrifugal motor pump with a special mechanical seal suitable for oil at temperatures up to 200°C.
• Heaters: Low specific power electric heaters made of stainless steel without sealing gaskets.
• Cooling: Indirect cooling via wasted water through a brazed stainless steel AISI 316L plate heat exchanger equipped with an electro-valve for flow control.
• Expansion Tank: Open expansion vessel designed to accommodate volume increase due to oil temperature rise.
• Safety and Control: Electric float for oil level monitoring that shuts off heating resistance if oil is absent; automatic air vent during filling; pressure gauge for fluid monitoring.

Technical Data Summary

The units vary by heating power (3 kW to 12 kW), pump delivery capacity (20 to 140 lt/min), and pressure ratings (up to 15 bar). Cooling fluid is typically water at various flow rates (15, 45, 90 lt/min).

2. Fluids Temperature Control Units

General Description

These units regulate temperature for fluids such as water, pressurized water, and diathermic oil used in production processes. They feature microprocessor-based digital controllers with PID control for precise temperature management, including timing and alarm functions.

Control System Features

• Digital temperature display and fault indication.
• Heating and cooling section control.
• RS 485 serial interface with Modbus protocol for communication.
• General power switch and pump protection.
• Autotuning/self-tuning capability for optimized control.

3. Water Temperature Control Units (Leak Stopper System, Range +30 / +90°C)

Design and Operation

• Leak Stopper System: Manual pressure/depression activation allowing operation under vacuum conditions to facilitate system draining.
• Pump: Immersed water recycle pump without mechanical seal, suitable for operation up to 160°C.
• Heaters: Stainless steel low power density heaters immersed in the tank.
• Cooling: Indirect cooling via tubular heat exchanger immersed in the tank, with electro-valve control.
• Tank: Stainless steel atmospheric pressure accumulation tank with electric float level control and automatic refill valve.
• Additional Features: Inspectable mechanical filter and fluid pressure gauge.

Technical Data Summary

Heating power ranges from 3 kW to 18 kW, pump delivery from 10 to 50 lt/min, and pressure up to 15 bar. Cooling fluid is water with nominal cooling capacities specified.

4. Pressurized Water Thermoregulating Units (Range +40 / +150°C)

Key Components and Features

• Pump: Centrifugal motor pump with special mechanical seal suitable for water at up to 150°C.
• Heaters: Low specific power stainless steel heaters, sealed and gasket-free.
• Cooling: Indirect cooling by wasted water through brazed stainless steel AISI 316L plate heat exchanger with electro-valve.
• Expansion Tank: Closed expansion vessel with nitrogen pre-charge to maintain system pressure.
• Monitoring: Fluid pressure gauge for system monitoring.

Technical Data Summary

Heating power ranges from 3 kW to 36 kW, pump delivery capacity from 10 to 180 lt/min, and pressure ratings up to 15 bar. Cooling fluid is water with various flow rates and cooling capacities.

5. Tables and Data Interpretation

The document includes detailed tables listing model types, fluid types, maximum design temperatures, total heating power, pump delivery capacities, pressure ratings, cooling fluid types, nominal cooling capacities, and total installed power. These tables allow selection of appropriate thermoregulating units based on process requirements.

Critical Information and Best Practices

• Use of stainless steel components ensures corrosion resistance and durability at high temperatures.
• Mechanical seals and gasket-free heaters improve reliability and reduce maintenance.
• Indirect cooling with wasted water and electro-valve control optimizes thermal management.
• Microprocessor-based PID controllers with communication interfaces enable precise and remote process control.
• Leak stopper systems allow safe operation under vacuum conditions for draining and maintenance.
• Regular inspection of filters and monitoring of fluid levels and pressures are essential for safe and efficient operation.