Advantages of large temperature difference and small flow: The larger the scale of the pipe network, the more important it is to choose a scientific operation method. Among them, the operation mode of "large temperature difference, small flow" is suitable for large pipe networks or super large pipe networks. The advantages reflected are more obvious: reducing the initial investment in pipeline network construction; saving power consumption in pipeline network operation; conducive to the hydraulic balance of the pipeline network; and increasing the stability of the pipeline network.

Disadvantages of large temperature difference and small flow: Although the operation mode of "large temperature difference and small flow" of the heating pipe network is increasingly recognized by heating enterprises (management departments), it is not possible to truly realize this operation mode. There are not many cases of good results.

The reasons that affect the promotion of the "large temperature difference and small flow" operating mode are mainly summarized into the following four categories: conservative thinking restricts the pace of advancement; hydraulic imbalance of the pipe network restricts the intensity of adjustment; backward adjustment methods affect the Operational effects; equipment defects or improper maintenance increase the difficulty of the work.

Realize the operation mode of "large temperature difference and small flow"

Domestic heating enterprises (management departments) have unique management methods due to different regions, and they also all Summarize their respective better operating experiences. Regarding how to scientifically and rationally complete the mode adjustment of "large temperature difference and small flow", heating enterprises (management departments) can choose appropriate adjustment methods based on their own characteristics and learn from each other's strengths.

1. Break away from traditional concepts and strengthen scientific thinking

The operation method of "large temperature difference, small flow" is increasingly accepted and promoted by the heating industry, and the decision-making of heating enterprises Investors should firmly break away from the traditional concept of "unsafe", emancipate their minds, look for deficiencies, communicate and learn more from outstanding companies in the industry, tap into the company's internal potential, and reduce energy consumption in pipeline network operations.

2. Strengthen pipe network adjustment to ensure hydraulic balance

Make full use of the advanced unattended thermal station automatic control system; regularly check the hydraulic conditions of the pipe network; establish a dispatching platform to adjust Heat distribution.

3. Upgrade adjustment methods and improve management methods

Adopt a concurrent quality adjustment method; establish an energy consumption monitoring platform; and implement a management method of dividing accounting units.

4. Improve equipment maintenance standards

First of all, heat exchange equipment must choose products with higher efficiency. Existing heat exchange equipment with low efficiency can be improved by increasing the heat exchange area and other technical measures; secondly, establish a file for the entire life cycle of the equipment to record the changes in operating parameters and repair and maintenance work of the equipment; finally, maintain pipe management Network water quality meets standards.