There are four problems in the promotion and application of water source heat pump in China

Water source heat pump as a new type of refrigeration heating method, from the technical point of view, especially the heat pump unit point of view should be quite mature, no problem. However, considering China's national conditions and the promotion and application of water source heat pump cooling and heating as a whole system, there are still some problems:

1. Water use policy

In order to protect the limited water resources, China has formulated the "Water Law of the People's Republic of China" and each city has also formulated its own "Urban Water Management Regulations." These policies all emphasize the use of water for approval and water charges. The requirements for similar water source heat pump technology are not stipulated in the approval standards, so the water source heat pump is easily limited by the water use index. Even though water approvals have been passed, because some places pump and discharge water sources twice, the standard for receiving fees is not uniform across the country. As a result, the water fee may be too high, resulting in insufficient energy cost for the operation of water-source heat pumps. , Water source heat pump economical investigation.

Therefore, the promotion of water-source heat pumps requires the government to consider all aspects of environmental protection and resources from the point of view of sustainable development, adjust the water source heat pump water source policy, need to re-determine how the water source management and charges, in order to promote its large-scale development.

2. Detection and exploitation technologies and costs of water sources

In China, the exploration and exploitation technologies of water sources, especially urban water sources, should be improved. One of the prerequisites for the application of water source heat pumps is the need to understand the conditions of local water sources. In the early stage of the use of water source heat pumps, the status of water sources must be implemented on the ground. Investigate whether the amount of groundwater will be sufficient for water and water and whether the site is suitable for drilling and recharging. The improvement of exploration mining technology and the reduction of costs will promote the better application of water source heat pump units.

3. Recharge technology of groundwater

If the water source heat pump uses groundwater, it must consider the recharge of the water source. For the recharge technology, it must consider the local geological conditions to consider the recharge irrigation technology. We do not know much about the geological structure of different regions, which also restricts the promotion and use of water source heat pump units.

4. Overall system design

Energy-saving water source heat pump system as a system, must be considered from various aspects, if the water source heat pump unit can use less water to provide more energy, but the system design of water pump and other energy-consuming equipment selection improper or improper control, It will also reduce the energy efficiency of the system. Similarly, if the unit provides a high water temperature, the design of the end of the air conditioning system without proper consideration may also degrade the effectiveness of the entire system or increase the initial investment of the entire system. Therefore, the promotion and application of water-source heat pumps requires more people in all fields of various professions to work together and jointly to participate in all aspects of government policies, host design and manufacturing, system design and operation management.