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Pipe network balance distribution and variable flow control method of air conditioner water system

A technology that balances distribution and control methods, applied in air conditioning systems, heating and ventilation control systems, heating and ventilation safety systems, etc., and can solve problems such as inability to achieve

Inactive Publication Date: 2016-07-06
HANGZHOU RUNPAQ SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no direct relationship between the load of the air conditioning system and the pressure difference. The dynamic hydraulic balance adjustment method based on the constant pressure difference cannot achieve the balance of the flow distribution of each branch. What it can do is to limit the flow of the branch. Maximum flow, to prevent excessive flow

Method used

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  • Pipe network balance distribution and variable flow control method of air conditioner water system
  • Pipe network balance distribution and variable flow control method of air conditioner water system
  • Pipe network balance distribution and variable flow control method of air conditioner water system

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Embodiment Construction

[0023] Such as figure 1 As shown, there are multiple parallel air handling unit branches between the water separator and the water collector, and each air handling unit branch has an air handling unit AHU. In this embodiment, the air handling unit AHU is used at the end of the system In the combined mode with the fan coil FCU, multiple parallel fan coil FCUs form a fan coil branch. Such as figure 2 As shown, the air handling unit AHU is provided with a first return air temperature sensor T and a supply air temperature sensor T3. Such as figure 1 , figure 2 As shown, there is a first heat meter R at the water inlet pipe of the air handling unit AHU, a first electric control valve 1 at the water outlet pipe, the first return air temperature sensor T, the output end of the air supply temperature sensor T3, and the heat meter R The output end and the input end of the first electric regulating valve 1 are connected to the air handling unit controller (AHU controller), and the...

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Abstract

The invention relates to a pipe network balance distribution and variable flow control method of an air conditioner water system. Multiple air handling unit branches connected in parallel are arranged between a water separator and a water collector. The method is characterized in that each air handling unit branch has an air handling unit; the air handling units are provided with air feeding temperature sensors; first heat meters are arranged on water inlet pipes of the air handling units; first electric adjusting valves are arranged on water outlet pipes; output ends of the air feeding temperature sensors, output ends of the first heat meters and input ends of the first electric adjusting valves are connected with air handling unit controllers; and the air handling unit controllers adjust the openness of the first electric adjusting valves according to the air feeding temperature change of the air handling units and the reading numbers of the first heat meters.

Description

technical field [0001] The invention relates to a method for balanced distribution and variable flow control of pipe networks in an air-conditioning water system. Background technique [0002] The task of a building's HVAC system is to provide users with a comfortable indoor climate at the lowest operating costs. Since the air-conditioning system operates under partial load conditions most of the time, the water flow of the system is lower than the design flow most of the time. Therefore, most of the air-conditioning water systems adopt high-efficiency and energy-saving variable flow systems. During the operation of the variable flow system, the flow of each branch (branch loop) changes with the change of the load, but the hydraulic power of each parallel branch affects each other, and the hydraulic disturbance of a branch will It is transmitted to other loops, resulting in an unbalanced distribution of cold and hot water flow in the air-conditioning water system, with exce...

Claims

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Application Information

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IPC IPC(8): F24F3/06F24F11/06
CPCF24F3/16F24F11/83
Inventor 刘月琴姜峰
Owner HANGZHOU RUNPAQ SCI & TECH CO LTD
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