It’s a kind of heat exchange equipment, which adopts the lithium bromide (LiBr) solution as a cycling working medium and water as refrigerant to generate cooling or heating for commercial use or industrial process.
Ideal for applications where waste heat is available, such as in commercial buildings, specialized industrial factories, power plants, heating plants, and similar environments.
Depending on the heat source, absorption units can be classified into five types: hot water-fired, steam-fired, direct-fired, exhaust/flue gas-fired, and multi-energy types
A complete absorption chiller system includes the absorption chiller, cooling tower, water pumps, filters, pipes, water treatment devices, terminals, and various measuring instruments.
- Cooling demand
- Available heat from the driving heat source
- Cooling water inlet/outlet temperature
- Chilled water inlet/outlet temperature
- Hot water type: Inlet/outlet temperature
- Steam type: Steam pressure
- Direct-fired type: Fuel type and calorific value
- Exhaust type: Inlet/outlet temperature of exhaust
Hot water, steam type: 0.7-0.8 for single effect, 1.3-1.4 for double effect.
Direct type: 1.3-1.4
Exhaust type:1.3-1.4
Generator (HTG), condenser, absorber, evaporator, solution heat exchanger, canned pumps, electric cabinet, etc.
Copper tubes are the standard material supplied to the overseas market; however, we can also provide fully customized options, including stainless steel, nickel-copper, or titanium tubes, based on customer specifications.
The absorption unit can be operated in two modes:
- Auto mode: Controlled by modulation via the PLC program.
- Manual mode: Operated manually using the on/off button.
A 3-way motor valve is used for hot water and exhaust gas units.
A 2-way motor valve is used for steam-fired units.
A burner is used for direct-fired units.
The feedback signal can be either 0-10V or 4-20mA.
The chiller is equipped with an auto-purge system and a vacuum pump. During operation, the auto-purge system removes non-condensable gases to the air chamber. When the air chamber reaches the preset level, the control system will prompt the activation of the vacuum pump. Each chiller is labeled with instructions on how to perform the purging process.
All Deepblue absorption units are equipped with temperature controllers, pressure controllers, and rupture disks to prevent overpressure within the unit.
Modbus, Profibus, and dry contact are available, with other methods customizable based on customer requirements.
Deepblue has established a remote monitoring center at its factory headquarters, enabling real-time monitoring of operational data for any unit equipped with an F-Box. Deepblue can analyze this data and notify users of any potential failures.
The operating temperature range is 5°C to 40°C.
Each unit is thoroughly tested before leaving the factory. Customers are welcome to witness the performance testing, and a detailed test report will be provided.
Typically, all units are shipped fully assembled, tested at the factory, and sent with the solution inside. However, when the unit dimensions exceed transportation restrictions, split transportation is used. Large connection components and the LiBr solution are packed and transported separately.
Solution A: Deepblue can dispatch our engineer onsite for first start-up and conduct a basic training for user and operator. But this standard solution becomes quite difficult because of the Covid-19 virus, so we got solution B and solution C.
Solution B: Deepblue will prepare a set of detailed commissioning and operation instruction/course for user and on-site operator, and our team will provide a WeChat on-line/video instruction when customer start up the chiller.
Solution C: Deepblue can send one of our overseas partner to site to provide commissioning service.
A detailed inspection and maintenance schedule is provided in the User Manual. Please follow the steps outlined there.
The warranty period is 18 months from shipment or 12 months after commissioning, whichever occurs first.
The minimum designed lifetime is 20 years. After this period, the unit should be inspected by technicians to assess its suitability for continued operation.
