Search within pages and documents

Are you looking for Spare Parts information?

Request contact from Alfa Laval

Please select your country.

HWL - Hot water loop

For heating and circulation of hot water to the freshwater generator. Designed to secure continuous maximum freshwater´production, and to ensure constant temperature and flow, even when the engine is not running.

hot water loop_640x360.png
  • Related industries
  • Related services

Features

  • Modular, compact design
  • Flexibility in operation
  • Automatic operation
  • Prepared for pre-heating of the main engine or other equipment

 

  • Simple, low cost installation
  • Low space requirements
  • The correct amount of heating water at the correct temperature ensures maximum production of fresh water at all times
  • Reliable operation due to self-adjusting steam regulation equipment
  • Saves man hours, cost and installation of a pre-heater for the main engine or other equipment

How it works

Working principle Partial Flow

A partial stream of water is led to the heat exchanger. To achieve the required water temperature, the partial stream is heated by steam or thermal oil to above the set point. As a result, the correct mixing temperature of the partial stream and the main stream is achieved, i.e., equal to the set point.

A partial stream of water is led to the heat exchanger. To achieve the required water temperature, the partial stream is heated by steam or thermal oil to above the set point. As a result, the correct mixing temperature of the partial stream and the main stream is achieved, i.e., equal to the set point.

 

Full Flow

The full flow of water is led to the heat exchanger. To achieve the required water temperature, the flow is heated by steam to the set point. The amount of steam is regulated by a steam valve controlled by a thermostat or a digital temperature controller mounted after the mixing point. A hot water pump ensures a constant flow and makes recirculation possible during low engine load or stop. A blind connection at the inlet to the heat exchanger makes it possible, if required, to connect an external hot water circulation pump and use the module for other heating or pre-heating purposes. The outlet connection has to be mounted after the outlet from the module.

Installation

The hot water loop is delivered as a complete module which can either be bolted or welded to the floor plate. The unit should be installed in connection with the heating medium system, either as a supplement to the system or as a closed loop.

howitworks2hotwloop.jpg
Request information

Request information for HWL - Hot water loop