Urban heat supply network intelligent balance control system and method

A heating pipe network and control system technology, applied in heating systems, hot water central heating systems, heating methods, etc., can solve the hydraulic imbalance of the primary pipe network, large system resistance loss, and large secondary side pressure station loss, etc. problems, to achieve the effect of alleviating hydraulic imbalance, reducing resistance loss, and reducing loss in the station

Active Publication Date: 2020-01-31
BEIJING KINGFORE HV & ENERGY CONSERVATION TECH CORP
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  • Application Information

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Problems solved by technology

Calculate the water supply temperature of the secondary network according to the outdoor temperature, and adjust the water supply temperature of the secondary network by adjusting the opening of the three-way valve in the primary network. This method only focuses on the temperature of the secondary water supply, which will cause hydraulic imbalance in the primary pipe network
[0003] In the two existing methods, all the secondary water enters the plate heat exchange unit, so t

Method used

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  • Urban heat supply network intelligent balance control system and method

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Embodiment 1

[0041] like figure 1 As shown, an intelligent balance control system for urban heating pipe network includes: a first regulating valve 1, a first temperature sensor 2, a second regulating valve 3, a third regulating valve 4, a second temperature sensor 5, and an outdoor weather station 6 , primary water supply pipeline 7, primary return water pipeline 8, secondary water supply pipeline 9, secondary return water pipeline 10, plate heat exchange unit 11 and control cabinet 12.

[0042]The first regulating valve 1 is arranged on the primary water supply pipeline 7 and is electrically connected with the control cabinet 12 . The first temperature sensor 2 is arranged on the primary return water pipe 8 and is electrically connected with the control cabinet 12 . The primary water supply pipe 7 is connected to the primary inlet A of the plate heat exchange unit 11 . The primary outlet B of the plate heat exchange unit 11 is connected to the primary return water pipe 8 . The second ...

Embodiment 2

[0049] This embodiment provides an intelligent balance control method for an urban heating pipe network, which specifically includes:

[0050] Obtain the return water temperature of the primary pipe network measured by the first temperature sensor 2 and the water supply temperature of the secondary pipe network measured by the second temperature sensor 5, and according to the primary return water temperature of all heat exchange units in the primary pipe network or the demand of the user side The temperature determines the target temperature of the return water in the primary pipe network of all heat exchange units. According to the outdoor meteorological parameters (outdoor ambient temperature, wind speed, wind direction and solar radiation) and the indoor demand temperature on the user side, calculate the target temperature of the secondary pipe network water supply.

[0051] Primary pipe network adjustment method:

[0052] Compare the return water temperature of the primar...

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Abstract

The invention discloses an urban heat supply network intelligent balance control system and method. The system includes a first adjustment component, a second adjustment component, a plate type heat exchange unit, and a control cabinet. A first regulating valve is arranged on a one-time water supply pipeline, a first temperature sensor is arranged on a one-time water return pipeline, a second regulating valve and a second temperature sensor are arranged on a second-time water supply pipeline, a third regulating valve is arranged on a bypass pipeline, each valve is adjusted according to the temperature value, the adjustment of a one-time network and the adjustment of a second-time network are separated, the adjustment of the one-time network is realized by relying on the return water temperature of the one-time network, the adjustment of the second-time network is realized by relying on the second-time supply water temperature, when the requirement of the second-time supply water temperature changes, the hydraulic working conditions of the one-time network is unaffected, stability of the hydraulic working conditions of the one-time network is ensured, decoupling operation of the one-time network and the second-time network is realized, and the problem of hydraulic disorder of the one-time network and the second-time network is solved.

Description

technical field [0001] The invention relates to the technical field of heat supply pipe network regulation and control, in particular to an intelligent balance regulation system and method for an urban heat supply pipe network. Background technique [0002] The existing urban heating network balance control technology generally includes two types. The first type: the primary network is equipped with an electric two-way regulating valve, and the secondary network is adjusted by variable flow in stages. Calculate the water supply temperature of the secondary network according to the outdoor temperature, and adjust the primary water volume by adjusting the opening of the electric two-way valve of the primary network, so as to achieve the purpose of adjusting the secondary water temperature. This method will lead to frequent adjustment of the primary network and frequent changes in hydraulic conditions, resulting in a Net hydraulic imbalance. The second type: the primary netwo...

Claims

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Application Information

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IPC IPC(8): F24D19/10F24D3/10
CPCF24D3/10F24D19/1015F24D2220/042F24D2220/06
Inventor 丁琦张迪王雨王茜
Owner BEIJING KINGFORE HV & ENERGY CONSERVATION TECH CORP
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