Pakistan High Efficiency Centrifugal Water Chiller

We are constantly working on our designs and each year a large number of new Direct-fired Chiller For Shuangliang, York Centrifugal Chiller, Lithium Bromide Special Impurity Remover are added to the production line. We constantly improve financial management, improve profitability, and promote technological innovation and equipment upgrading, so as to enhance our own strength. We also warmly welcome customers to visit our company and purchase our solutions.

Unit characteristics

1. It is specially designed for 134a chlorine-free refrigerant, which does not dissipate the ozone layer at all. It is a new environmentally friendly refrigerant.

2. The unit is designed with positive pressure and compact structure. Compared with the unit with negative pressure design, the volume is reduced by more than 35%. The reduced size means a reduction in the area occupied by the computer room, and the positive pressure design does not require a pumping recovery device.

3. The design and manufacture of key compressor components share the field of aero engine design and manufacture.

4. The new high-efficiency impeller designed by the ternary flow principle is composed of backward curved blades and separated blades to ensure the efficiency of the unit at full load and partial load.

5. The cone flaring adopts new aero-engine technology, which improves the efficiency of the unit at full load. The variable diffuser structure adjusts the direction of the air inlet, which greatly improves the partial load performance of the unit.

6. The refrigerant inlet guide vane continuously adjusts the cooling capacity to keep the cold water outlet temperature at the set point ±0.3°C. Adjust the refrigerant inlet airflow to operate in a wide and stable range of working conditions to prevent the unit from surge, cavitation and vibration.

7. The super-funny heat transfer tube further reduces the heat transfer resistance and improves the heat transfer performance. The newly designed heat exchanger reduces the refrigerant charge and reduces costs.

8. The linear float valve throttling system adjusts the flow of refrigerant according to the change of the working condition of the unit, guarantees the partial load performance of the unit, establishes a liquid seal, and eliminates unnecessary hot gas bypass.

9. The optimized pipeline design of the unit reduces the pressure loss of refrigerant flow and ensures the efficiency of the unit.

10. Compared with multi-stage compression, advanced single-effect compression has fewer moving parts, which greatly improves the reliability of the unit.

11. The lubricating oil is directly cooled by the refrigerant in the oil cooler, without the need for cooling water to take over, reducing installation costs.

12. The evaporator and condenser are designed and manufactured in accordance with my country's pressure vessel specifications. The unit isolation valve allows the heat exchange tube to be used as a liquid storage tube, and can be equipped with a pumping system to transport refrigerant and easy maintenance.

Model description

Dimensions

Typical piping and wiring

Line number description

Wiring and pipeline requirements:

1. The construction unit must lay all the cables in place and make the line head identification symbols.

2. A filter must be installed in the cold water and cooling water piping system.

3. Install a thermometer (0-50℃) and pressure gauge (0-1MPa or 2MPa) on the inlet and outlet pipes.

4. It is recommended that the construction unit use copper pipes (outer diameter 42mm, wall thickness 4mm) to connect the safety valve outlet to the outdoors.

5. In order to ensure personal safety and health, it is recommended to install an oxygen content detector in the computer room. When the oxygen is partially consumed or replaced and the oxygen content is lower than 19.5%, an alarm is required.

On-site construction, unit commissioning

How to select the refrigeration chiller?

The selection principle is to see the size and purpose of the refrigeration space, and then select the corresponding refrigeration compressor and related equipment.

A refrigerator is a machine that transfers the heat of a cooled object with a lower temperature to the environment medium to obtain cold energy. The heat transferred from a lower temperature object is traditionally called coldness.

The working fluid in the refrigerator that participates in the change of the thermal process (energy conversion and heat transfer) is called refrigerant. The temperature range of refrigeration is usually above 120K, and below 120K belongs to the range of deep cryogenic technology.

Compression refrigerator. Rely on the action of the compressor to increase the pressure of the refrigerant to realize the refrigeration cycle.

Absorption refrigerator. Relying on the role of the absorber-generator group (thermochemical compressor) to complete the refrigeration cycle, it can be divided into three types: ammonia absorption type, lithium bromide absorption type and absorption diffusion type.

Refrigeration is a science and technology that reduces the temperature of a certain space or object below the ambient temperature and maintains it in a prescribed low temperature state. It continues to develop with people's requirements for low temperature conditions and the improvement of social productivity.

The main performance indicators of refrigerators include operating temperature (evaporation temperature and condensation temperature for vapor compression refrigerators, and temperature of the object to be cooled and temperature of cooling medium for gas compression refrigerators and semiconductor refrigerators), cooling capacity (refrigeration The amount of heat removed from the object to be cooled per unit time).

Power or heat consumption, refrigeration coefficient (a measure of the economics of a compression chiller, refers to the amount of cold that can be obtained by consuming a unit of work) and thermal coefficient (a measure of the economics of absorption and steam jet chillers, refers to the unit of consumption The amount of cold that can be obtained by heat) and so on. The most widely used modern refrigerators are vapor compression refrigerators. Common brands include Sanyo, Panasonic, Shuangliang, BROAD LG, etc.

In addition, according to the cooling method, it can also be divided into air-cooled and water-cooled.

The air-cooled chiller contains a heat preservation water tank and a water pump in its body, so there is no need to add a cooling water tower to dissipate heat. It is convenient to install and move. But it has higher requirements for the working environment. First of all, because it is cooled by hot air circulation, if the ventilation effect of the installation workshop is not good, it will directly affect the cooling effect of the chiller.

Water-cooled chillers can be divided into open type, sealed type and screw type. The water-cooled chiller must be equipped with an additional water tank, and the sealed type does not need to be because it has a built-in water tank. If the requirement for cooling capacity is very large, it is recommended to choose a screw chiller.

Our company is specialized in Pakistan High Efficiency Centrifugal Water Chiller production with a long history, strong technical force and high technology content. Our company continues to explore new management methods and establish a scientific management system to enable the company to keep pace with the development of the times. We always regard the technology and prospects as the uppermost.