Circulating pump real time quantity regulation and control system

A circulating water pump and control system technology, applied in the control/regulation system, non-electric variable control, temperature control, etc., can solve the problems of waste of heat energy, failure to achieve timely and effective adjustment effects, increase power consumption, etc., to improve The quality of heating, the effect of saving electricity is remarkable, and the effect of improving safety

Inactive Publication Date: 2005-09-14
王占斌
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Problems solved by technology

[0005] 2. When the "climate compensation" heating method is applied to the secondary water, it is difficult to adjust the primary pipe network, and the best adjustment effect cannot be achieved, resulting in a periodic reduction in heating quality, increasing heat energy consumption and increasing power consumption
[0006] 3. The distance between each heat exchange station and the boiler room is different. When water quality is adjusted once, the near-end temperature rises qu

Method used

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  • Circulating pump real time quantity regulation and control system
  • Circulating pump real time quantity regulation and control system

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Embodiment Construction

[0017] The basic principle of this system is: eliminate human factors, automatically control the boiler outlet water temperature to its rated working temperature, ensure the maximum temperature difference between the supply and return water of the boiler, and minimize the flow rate when delivering the same amount of heat. The frequency conversion speed regulating device will save the electric energy reduced by reducing the flow.

[0018] The core theory of saving electricity of the present invention is: "the power similarity law of centrifugal water pump":

[0019] lambda N =λ ρ ·λ n 3 ·λ L 5

[0020] That is: the power similarity coefficient λ of the pump N Density similarity coefficient λ to the fluid ρ , the third power λ of the speed similarity coefficient n 3 , the fifth power λ of the impeller geometric similarity coefficient L 5 Proportional.

[0021] When the physical parameters of the fluid delivered by the pump are constant and the geomet...

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Abstract

The invention discloses a circulating water pump real-time amount adjustment control system, which comprises a multichannel water distribution apparatus, a boiler control apparatus and a water pump control apparatus.The multichannel water distribution apparatus distributes water according to water temperature and demand, wherein, a boiler control apparatus detects the maximum temperature, when boiler load increases and water temperature rises to set point, a water pump control apparatus will control variable-speed water pump to send out increased load heat, then, temperature drops to set point.Conversely, when a boiler load decreases and water temperature is lower than set point, a water pump control appatarus will control variable-speed water pump to reduce speed and flow, then temperature rises to set point.

Description

technical field [0001] The invention relates to the technical field of automatic control, in particular to the technical field of real-time regulation of primary water in a boiler heating system. Background technique [0002] In the boiler heating system, primary water refers to the heat carrier that flows through the boiler and transmits the heat produced by the boiler. Among the connection methods between primary water and user circulating water (secondary water), some are indirectly connected through heat exchange equipment, and some are directly connected in a mixed manner. [0003] At present, in the boiler heating system, the primary circulating water pump of "centralized boiler room high temperature water heat exchange and heating" generally adopts the high power consumption adjustment method of "quality adjustment" or "quality and quantity mixed adjustment". "Primary circulating water pump" refers to the power equipment that transports the heat produced by the boile...

Claims

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Application Information

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IPC IPC(8): F24D19/10G05D23/00G05D23/19
CPCY02B30/762Y02B30/745Y02B30/70
Inventor 王占斌
Owner 王占斌
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