150 Kw Characteristics Of R134a/R410A Cascade Heat Pump For Mining Companies For Hot Water

Principle of 150 kw Ultra-low temperature variable frequency cascade high temperature heat pump unit
When the ambient temperature drops to produce high-temperature hot water above 80°C, the traditional single-stage steam compressor cycle causes a sharp drop in efficiency due to the increase in the compression ratio. The use of cascade heat pump cycle can solve this problem

The cascade heat pump consists of two independent cycles, a low temperature cycle and a high temperature cycle. The two cycles are connected by an evaporative condenser. The evaporative condenser is both a low temperature stage condenser and a high temperature stage evaporator. In the refrigeration cycle of the whole system, the refrigerant absorbs heat and gasifies in the evaporator, and then enters the evaporative condenser to release heat after being compressed by the low-temperature compressor. The high temperature condenser absorbs the heat released by the low temperature refrigerant in the evaporative condenser and evaporates it into gas. It is compressed into high temperature and high pressure in the high temperature compressor, and releases heat in the condenser to become high temperature and high pressure liquid. After being throttled by the expansion valve, it enters the evaporative condenser, and so on. The high temperature heat pump adopts imported compressor, and the fully automatic control system can ensure the unattended operation of the unit, and can produce high temperature hot water above 80 ℃ with only a small amount of electricity.

High temperature hot water at 60℃~80℃ is needed in printing and dyeing textile factories. High temperature heat pump can effectively provide high temperature hot water at 85℃ for industrial hot water users in printing and dyeing factories, bleaching and dyeing factories, weaving factories, etc. The annual operating cost of the high temperature heat pump system is about 1/4 of the cost of electric heating and 1/3 of the cost of oil heating. Although the initial investment cost of high temperature heat pump is slightly higher, compared with other heating methods, enterprises can recover the cost in a very short time.

High temperature hot water at 60℃~80℃ is needed in printing and dyeing textile factories. High temperature heat pump can effectively provide high temperature hot water at 85℃ for industrial hot water users in printing and dyeing factories, bleaching and dyeing factories, weaving factories, etc. The annual operating cost of the high temperature heat pump system is about 1/4 of the cost of electric heating and 1/3 of the cost of oil heating. Although the initial investment cost of high temperature heat pump is slightly higher, compared with other heating methods, enterprises can recover the cost in a very short time. ...
 
The ultra-low temperature variable frequency cascade high temperature heat pump unit adopts the form of R410A low temperature stage and R134a high temperature stage system. Heat exchange for making hot water or heating. The ultra-low temperature cascade high temperature heat pump unit adopts DC frequency conversion technology, which has high heating energy efficiency. Temperature can be stable heating 75 ° C.
 
Performance characteristics of 150 kw Ultra-low temperature variable frequency cascade high temperature heat pump unit
1. Full DC frequency conversion control technology: The frequency conversion control technology based on variable working conditions can automatically adjust the load; the heating capacity is less attenuated, and the heating capacity is increased by 30% compared with the conventional single-system heat pump;
2. High temperature of water supply: high temperature special compressor is adopted, rated supply/return water temperature is 70°C/60°C, and water supply temperature is up to 75°C;
3. Good low temperature performance: normal heating 70°C at -30°C ambient temperature, heating COP at -12°C/-14°C ambient temperature not less than 1.8, heating COP at -25"C ambient temperature Not less than 1.5;
4. Wide range of applications: the water supply temperature is 40°C~70°C, the applicable ambient temperature is -35°C~25°C, and it is suitable for a variety of terminal forms, and can be used in most cold areas in northern my country;
5. Easy installation of the project: the overall modular structure design is adopted, the structure is compact, the operation noise is low, the floor space is small, and the installation cost is low;
6. Remote cloud monitoring: The whole system is equipped with a remote monitoring system, which can check the operating status and operating parameters of the unit in real time, check fault alarms and operate remotely, and realize 24-hour unmanned management.