You are here: Home » Products » Marine Environment Protection Equipment & Water Treatment Plant » Electric Heating Hot Water Tank » DRG Series Electric Heating Hot water Tank

PRODUCT CATEGORY

CONTACT US

Address: Technical Building, Loncin Industrial Park, Nan'an District,Chongqing,400060,China
Zip: 400060
Contact person：Nedved Jiang
Tel: 0086-023-62984891
Fax: 0086-023-62613622
Mobile/WhatsApp: 0086 15922636020
E-mail: master@hy-industry.com
Skype: hangyumarine

DRG Series Electric Heating Hot water Tank

Share to:

DRG Series Electric Heating Hot water Tank

This series hot water tank is suitable for heating fresh water on the ship or platform, heated fresh water for crew use.

Quantity:


Inquire Add to Basket

Model: DRG
Brand: XH
Type: Electric heating hot water tank
Capacity(m3): 0.12-1.0
Working Pressure(Mpa): 0.4
Design Pressure(Mpa): 0.44
Testing Pressure(Mpa): 0.66
Safety valve open pressure (Mpa): 0.42
Water Inlet Temp.(℃）: 15
Water Outlet Temp.(℃）: 65

1. Application
This series hot water tank is suitable for heating fresh water on the ship or platform, heated fresh water for crew use.
2 . Main Technical Parameters

Model	DRG-
Model	0.12	0.2	0.3	0.5	1.0
Capacity （m3）	0.12	0.2	0.3	0.5	1.0
Working pressure （MPa）	0.4（60℃）
Design pressure （MPa）	0.44
Test pressure （MPa）	0.66
Safety valve open pressure （MPa）	0.42
Water inlet temperature （℃）	15
Water outlet temperature （℃）	65
Working temperature （℃）	0~65
Design temperature （℃）	80
Heated water capacity （kg/h）	180	360	540	720	900
Electrical heating power （kW）	12	24	36	48	60
The thickness of the external thermal layer （mm）	40
The thickness of outer galvanized sheet steel （mm）	0.7
Electricity	AC380、50Hz、3φ/AC440V、60Hz、3φ

3 . Principle Description
This series hot water tank can be combined to
use with fresh water pressure tank on board,
that is to use fresh water in fresh water pressure tank to replenish this tank,
and then heated by electric for usage of entire vessel.
Temperature controller: The water temperature in tank is controlled
by two WTZK-50-C pressure type temperature controllers;
If the water temperature in tank is lower than 50℃,
the power will be on automatically and the electric heater will begin to heat;
If the water temperature in tank is higher than 65℃,
the power will be off automatically and the electric heater will stop heating.
Pressure gauge: to show the pressure in tank.
Thermometer: to show the water temperature in tank.
Safety valve: If the pressure in tank is more than 0.42MPa,
the safety valve will open to release the pressure in tank.
Note: Never wind the raw material belts into the inlet of safety valve
when installing the safety valve.
Float level Switch: to protect the electric heater,
if the liquid level in tank is lower than float level switch,
the electric heater will cut off automatically.
Electric control box: There two kinds of hot water controlling:
manual control and auto control. When the change-over switch SA2 is turned to “Manual ” ,
the electric heater will start to heat until the water in tank reaching 65℃.
Then the electric heater stops heating. When the change-over switch is turned to “ Auto ” , at this moment,
if the water temperature in tank is lower than 50℃,
the electric heater will start to heat automatically until the water in tank
reaching 65℃. Then the electric heater stops heating.
If the float level switch finds that there is no water in hot water tank,
the electric heater controlled by electric control box will not work.
For the hot water tank which has two or three groups of electric heater,
the device will adopt segmentation heating method to realize due
to the large power of electric heater. 1min later,
another group electric heater will start to work. By that analogy,
all of the electric heater will stop heating after the water in tank reaching 65℃.
4. Operation method
4.1 Adjust the temperature control range.
4.1.1 Set the low temperature controller and high temperature controller
to 5 0℃ and 65℃.
4.2 Set the open pressure of safety valve
4.2.1 Set the open pressure of safety valve. When the pressure in tank
is over 0. 42 MPa , the safety valve will take off to release the pressure in tank.
4.3 Normal operation
4.3.1 Open the water inlet and outlet valve. Start the electric heater.
When the temperature in tank is lower than 50 ℃,
the device will start automatically until the temperature reaching 65℃.

5.System piping
5.1 Cold water inlet: connected to the outlet of fresh water pressure tank
to inject water into tank so as to keep the cold water pressure in tank
between 0.36 and 0.38MPa.
5.2
Hot water outlet: connected to the hot water general pipe on board for use.
5.3 Water return interface: connected to hot water return pipe to
make the hot water heat circularly.
5.4
The water outlet of safety valve：to discharge the pressure water. It is connected to bilge.
5.5 Discharging outlet: to empty all of the water in tank. It is connected to bilge.
5.6 Interfaces

Model	Cold water inlet	Hot water outlet	Water return interface	Discharging outlet	Safety valve
DRG-0.12	DN25	DN25	DN25	3/4”	ZG1/2″
DRG-0.2	DN25	DN25	DN25	3/4”	ZG1/2″
DRG-0.3	DN32	DN32	DN32	3/4”	ZG1/2″
DRG-0.5	DN32	DN32	DN32	1”	ZG1/2″
DRG-1.0	DN40	DN40	DN32	1”	ZG1/2″

6 . Care and maintenance
6.1 The WTZK-50-C marine pressure type temperature controller should be
installed on instrument panel vertically. It is strictly forbidden to
stir with hands or tools. T he Temperature detection layer should be
immersed in water completely. Don ’ t impact and compress the capillary.
The be nding radius can't be shorter than 50mm . It is needed to fix the
capillary with clip every 300mm to ensure the safety.
6.2 During the using of electric heater, if there is scale or carbon
deposition on pipe, it is needed to use after cleaning so as to avoid
affecting the service life and efficiency of electric element.
If it is without of using for a long time, When the cold insulation
resistance is lower than 1M Ω, it can be cured in the oven of 200 ℃
until returning to normal.
6.3 Remove and clean the water tank regularly. After cleaning and
brushing the inner wall, determine whether repaint according to
flaking condition of painting. Repaint the out surface with anti-corrosive paint, meanwhile, replace wearing parts. After the spare parts
are dry, reassemble it.

*Verify Code

Menu

PRODUCT CATEGORY

CONTACT US

DRG Series Electric Heating Hot water Tank

Navigation

Product List

Navigation

Contact Us