Hope Deepblue Air Conditioning Manufacture   Corp., LTD
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LiBr Chiller LiBr Heat Pump Download
Hot Water Fired LiBr Absorption Chiller

Unit cooling capacity: 100kW - 11630kW

Heat input: hot water/heat conducting oil ( 65 deg C - 200 deg C )


1. Interlock mechanical & electrical anti-freezing system: multi anti-freezing protection

The coordinated anti-freezing system features following merits: a lowered primary sprayer design for the evaporator, an interlock mechanism which links the secondary sprayer of evaporator with the supply of chilled water and cooling water, a pipe blockage prevention device, a two-hierachy chilled water flow switch, an interlock mechanism designed for the chilled water pump and cooling water pump. Six levels anti freezing design ensures timely detection of break, underflow, low temperature of chilled water, automatic actions will be taken to prevent tube freezing.

2. Auto purge system combining muti-ejector&fall-head technology: speedy vacuum purging and high vacuum degree maintenance

This is a new, high efficiency automatic air purge system. The ejector functions as a small air extraction pump. DEEPBLUE automatic air purge system adopts multiple ejectors to increase the air extraction and purge rate of chiller. Water head design can help to evaluate vacuum limits and maintain a high vacuum degree. The design with features rapidly and highness can provide a high vacuum degree for every part of chiller at any time. Therefore, oxygen corrosion is precluded, service life time is prolonged and optimal operating status is maintained for chiller.

3. Simple and reliable system pipe design: easy operation and reliable quality

Maintainable structure design: spray plate in absorber and spray nozzle in evaporator are replaceable. Ensure capacity will not drop in lifespan. No solution regulation valve, refrigerant spray valve and high pressure refrigerant valve, so the leakage points are less, and  unit can keep stable operation without manual regulation.

4. Automatic anti-crystallization system combining potential difference-based dilution and crystal dissolution: eliminate crystallization

A self-contained temperature & potential difference detection system enables chiller to monitor excessively high concentration of the concentrated solution. On one hand upon detecting an overly high concentration the chiller automatically feeds refrigerant water to concentrated solution for dilution, on the other hand, the chiller utilizes HT LiBr solution in generator to heat concentrated solution to a higher temperature. In the event of a sudden power failure or abnormal shutdown, potential difference-based dilution system will start rapidly to dilute LiBr solution and to ensure rapid dilution after power supply recovers.

5. Tube broken alarm device

When the heat exchange tubes broke in chiller at abnormal condition, control system send out an alarm to remind operator to take actions, reduce damage.

6. Self-adaptive refrigerant storage unit: improving part load performance and shortening startup/shutdown time.

The refrigerant water storage capacity can be automatically adjusted according to external load changes, particularly when chiller works under partial load. The adoption of refrigerant storage device can shorten startup/shutdown time substantially and reduce idle work.

7. Economizer: energy output boosting

Isooctanol with a conventional chemical structure as an energy boosting agent added to LiBr solution, is normally an insoluble chemical that has only a limited energy boosting effect. The economizer can prepare mixture of isooctanol and LiBr solution in a special way to guide isooctanol into generation and absorption process, therefore enhancing energy boosting effect, effectively reducing energy consumption and realizing energy efficiency.

8. Integral sintered sight glass: a powerful guarantee for high vacuum performance

The leakage rate of the whole unit is lower than 2.03X10-9 Pa.m3 /S , Which is 3 grade higher than national standard, can ensure unit's lifespan.

   Unique surface treatment for heat exchange tubes: high performance in heat exchanging & less energy consumption

The evaporator and absorber have been hydrophilic treated to ensure even liquid film distribution on tube surface. This design can improve heat exchange effect and lower energy consumption.

9. Li2MoO4 Corrosion inhibitor: an environment –friendly corrosion inhibitor

Lithium Molybate (Li2MoO4), an environment-friendly corrosion inhibitor, is used to replace Li2CrO(Containing heavy metals) during the preparation of LiBr solution.

10. Frequency control operation: an energy-saving technology

Chiller can adjust its operation automatically and maintain optimal working according to different cooling load.

11. Plate heat exchanger: saving more than 10% energy

A stainless corrugated steel plate heat exchanger is adopted. This type of plate heat exchanger has a very sound effect, a high heat recovery rate and remarkable energy saving performance. Meanwhile, the stainless steel plate has a service life of over 20 years.