Hydraulic equilibrium control system of secondary network of centralized heat-supply network and control method thereof

A technology of hydraulic balance and central heating, applied in heating systems, household heating, heating methods, etc., can solve problems such as loss of practicability, inability to meet heating demand, and inability to meet uniform heating, so as to prevent waste of resources , Reliable and timely adaptive adjustment, improve the effect of heating uniformity

CN103075760BActive Publication Date: 2015-07-15TIANJIN THERMAL POWER DESIGNING INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2015-07-15

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Abstract

The invention relates to a hydraulic equilibrium control system of a secondary network of a centralized heat-supply network and a control method thereof. The hydraulic equilibrium control system of the secondary network of the centralized heat-supply network is characterized by comprising a long-distance central computer control unit and a plurality of horizontal hydraulic disorder control units corresponding to buildings. Each control unit comprises a GPRS (General Packet Radio Service) communicator at the entrance of the corresponding building, a local measurement and control terminal, an electric adjusting valve on a building water supply pipe, a water return temperature sensor on a building water return pipe, and an operated type differential pressure control valve of the building; and an operated type differential pressure control valve of a user is arranged on a user water return pipe inside the building. The control method comprises the following steps of: A, manually and initially adjusting horizontal hydraulic disorder; B, automatically and adaptively adjusting the horizontal hydraulic disorder: calculating a set value t of a building water return temperature by the central computer control unit according to an outdoor temperature, and collecting a building water return temperature T and openness data of an electric adjusting valve, and calculating a deviation value deltaT by each measurement and control terminal, so as to control openness of the electric adjusting valve; and C, manually adjusting vertical hydraulic disorder. The hydraulic equilibrium control system of the secondary network of the centralized heat-supply network and the control method thereof provided by the invention have the advantages that uniform heat supply is ensured, energy is saved, and consumption is reduced.
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Description

technical field

[0001] The invention relates to a central heating pipe network control system, in particular to a central heating pipe network secondary network hydraulic balance control system and a control method thereof. Background technique

[0002] With the advancement of social technology and economic development, the central heating pipe network has developed rapidly, providing a warm and comfortable living environment for the majority of heating users, but there are still adjustments in the operation of the heating system, especially in the hydraulic balance adjustment of the secondary network The problem of not being in place will directly affect the heating effect of users. The adjustment of the hydraulic balance includes the adjustment of the horizontal hydraulic imbalance and the adjustment of the vertical hydraulic imbalance. The horizontal hydraulic imbalance refers to the hydraulic imbalance between the buildings, and the vertical hydraulic imbalance refers to...

Examples

Embodiment Construction

[0036] figure 1 It shows the secondary network hydraulic imbalance control system of the centralized heating pipe network in a heating residential area. In this embodiment, n in the figure is 9, and m is 15. That is, the heating residential area has 9 buildings A1-A9, each building has 15 users B1-B15, and corresponding buildings A1-A9 have 9 horizontal hydraulic imbalance control units C1-C9.

[0037] Based on the above-mentioned heating area, the hydraulic balance control system of the secondary network of the central heating pipe network is characterized in that it includes a remote central computer control unit 1 and 9 horizontal hydraulic imbalance control units C1-C9 corresponding to each building under its control. The above-mentioned horizontal hydraulic imbalance control units C1-C9 respectively include a GPRS communicator 2 connected to the above-mentioned remote central computer control unit 1 and arranged at the entrance of the building, a local measurement and con...