Displacement type domestic hot water heat exchanger
A, product introduction
Volume type hot water heat exchanger is floating coil heat exchanger components production of domestic hot water. The heat exchanger with automatic cleaning function, water storage, water supply safety and stability, high heat efficiency, long service life. The utility model is suitable for the domestic hot water supply system of general industrial and civil buildings.
Two, the use of instructions
1 the heat exchanger tube is a heat medium passage, the shell is a heated water channel, and the heat medium is steam or high and low temperature hot water.
2 shell material for high quality carbon steel, heating coil for the copper tube.
3 at the top of the heat exchanger installed safety valve, safety valve pressure must be adapted to the change of the maximum working pressure of heat exchanger, and in accordance with the provisions of the "pressure vessel safety technology", or the design of expansion tank is communicated with the heat exchanger to release water expansion.
The 4 heat exchanger used in the process to regularly check monthly to thermal shock automatic descaling once, put clean water every week, which can ensure the quality of cleaning.
The specific method is: 5 thermal shock descaling net tank storage water by the steam inlet pressure 0.3MPa steam to the heating pipe heating pipe has the sound that has been inflated, and then close the steam inlet valve, water shock heating tube, repeat 3-4 times, can be found by the sewage outfall scale continue to flow, and then fill cold working again.
6 the heat exchanger shell, tube design pressure is generally 0.6-1.6MPa, export hot water temperature is generally not higher than 900C, tube resistance