Hydraulic balance adjusting system of branch shaped heat supplying pipe network and control monitoring method

Abstract

The invention discloses a hydraulic balance adjusting system and method of a branch shaped heat supplying pipe network. The system comprises a control center, a returned water temperature sensor, an electric adjusting valve, a characteristic user indoor temperature sensor and a circulating pump. According to the system, the returned water temperature sensor is used for transmitting the returned water temperature of a user to the control center, so that a heat supplying company can quickly directly master the returned water temperature of the users in the whole network; and meanwhile, the returned water temperature is monitored in real time, thus the user losing water can be determined within the first time, and the economic loss caused by water losing can be avoided; the heat supplying pipe network is subjected to hydraulic balance adjusting, so that the indoor temperature uniformity of the users in the whole network can be greatly improved; the problem that the heating of some user does not meet the standard due to maladjusted hydraulic balance is reduced; the ideal running mode of 'high temperature difference and small flow rate' is achieved, namely, the circulating flow rate isdecreased, the supplied water temperature is increased, the electricity of a heat exchange station is saved, and meanwhile, the overheat of the front end is avoided, and the heat consumption of the heat exchange station is saved.

Description

technical field [0001] The invention belongs to the technical field of heat supply, and in particular relates to a hydraulic balance adjustment system and a control and monitoring method of a dendritic heat supply pipe network. Background technique [0002] The hot water heating system relies on the outdoor heating pipe network to send hot water to each building. The heating pipe network can be divided into branch pipe network and ring pipe network. At present, most cities in my country use branch pipe network for heating. Compared with the ring pipe network, the branch pipe network has the advantage of low initial investment, but the operation cost is high and the hydraulic balance is more difficult. The imbalance of hydraulic balance not only increases the production cost of heating enterprises, but also causes the indoor temperature of individual users to be too low, which seriously affects the production and life of users. The traditional hydraulic balance method is to ...

AI Technical Summary

Problems solved by technology

Compared with the ring pipe network, the branch pipe network has the advantage of low initial investment, but the operating cost is high and the hydraulic balance is more difficult

The imbalance of hydraulic balance not only increases the production cost of heating enterprises, but also causes the indoor temperature of individual users to be too low, which seriously affects the production and life of users

The traditional hydraulic balance method is to manually adjust the valves of each circuit through calculation and measurement by a professional debugging team. This method not only consumes a lot of time and manpower, but it is often difficult to achieve the expected adjustment effect

[0003] In recent years, with the development of valve and communication technology, many research institutions have invented the hydraulic balance adjustment system and its control method based on remote automatic adjustment, but there are problems such as complex system, cumbersome control logic and single function.

Patent CN201020116385.5 discloses an "intelligent adjustment system for heat balance of heating pipe network". The data to be collected by this system include supply water temperature, return water temperature and indoor temperature. Temperature sensor, not only the investment cost is high, but also the data processing capacity of the system is too large; patent CN201310037474.9 discloses a "central heating pipe network secondary network hydraulic balance control system and its control method", the method does not affect the set value The calculation accuracy requirements are relatively high, and automatic adjustment cannot be realized

In addition, few patents in this field have both regulation and monitoring functions

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