High precision automatiac flow balancing device

a flow balancing device, high-precision technology, applied in ratio control, lighting and heating apparatus, instruments, etc., can solve the problems of uneven thermal distribution, excessive flow in some pipeline loops, and energy loss due to hydraulic disorder of circulating water system, etc., to achieve convenient device setting, high precision, and easy flow regulation

Inactive Publication Date: 2010-05-06
TAN ZHONGXI
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  • Abstract
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  • Claims
  • Application Information

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Benefits of technology

[0012]The present invention has the following advantages: convenient in the setting of device, easy regulation of the flow, high precision, available in the remote

Problems solved by technology

In the central air-conditioning system or heating apparatus, the energy loss due to the hydraulic disorder of circulating water system is very serious.
Because the cooling fins or the terminal devices of the central air-conditioning system are arranged in the building at different distances away, the different resistances in the pipelines cause that the flow in some pipeline loops is excessive while the flow in some pipeline loops is insufficient, uneven thermal distribution thus occurs.
Though the method of the reverse-return arrangement may be used, the cost of pipeline is too high and the energy consumption of water pump is increased due to the increase of flow path in this system.
Furthermore, the reverse-return arrangement in the system can not completely solve the problem of hydraulic disorder.
Sometimes, in order to cater for the flow dema

Method used

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  • High precision automatiac flow balancing device
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Embodiment Construction

[0023]Many aspects of the invention can be better understood in the following embodiments with reference to the accompanying drawings.

[0024]Referring to FIG. 1, a high precision automatic flow balancing device for use in the circulating system of the central air-conditioning system comprises flow balancing valves 1, 3 respectively controlled by electric actuators 2, 4 and respectively provided in two circulating pipelines; flow sensors 5, 6 connected to a control terminal 7 are respectively provided in the two pipelines; wherein the control terminal 7 receives the real-time flow signal from the flow sensors 5, 6 on the pipelines and compares preset values with the flow signals and then gives control signals to the electric actuators 2, 4 so as to control the flow balancing valves 1, 3 to regulate the flow of the pipeline, forming closed control loops.

[0025]The control terminal 7 is connected to a network module 5. It is thus possible for remote setting and monitoring via network. Th...

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Abstract

A high precision automatic flow balancing device comprises a flow balancing valve set at pipeline which is controlled by an actuator. A flow sensor at the same pipeline is connected to a control terminal. The control terminal compares the preset value with the output signals of sensors from each pipeline and gives a control signal to the actuator forming a closed control loop to control the flow of fluid.

Description

BACKGROUND OF THE INVENTION[0001]The present invention relates to the field of the circulating water control of central air-conditioning system, and in particular to an automatic flow balancing device for pipeline.[0002]In the central air-conditioning system or heating apparatus, the energy loss due to the hydraulic disorder of circulating water system is very serious. Because the cooling fins or the terminal devices of the central air-conditioning system are arranged in the building at different distances away, the different resistances in the pipelines cause that the flow in some pipeline loops is excessive while the flow in some pipeline loops is insufficient, uneven thermal distribution thus occurs. Though the method of the reverse-return arrangement may be used, the cost of pipeline is too high and the energy consumption of water pump is increased due to the increase of flow path in this system. Furthermore, the reverse-return arrangement in the system can not completely solve ...

Claims

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Application Information

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IPC IPC(8): F28F27/00
CPCG05D11/132
Inventor TAN, ZHONGXI
Owner TAN ZHONGXI
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