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Dynamic dual-temperature balance electric regulating valve

An electric control valve, dual temperature technology, applied in the direction of mechanical equipment, etc., can solve the problems of not caring about the supply side, hydraulic imbalance, and only focusing on the use side

Inactive Publication Date: 2019-01-18
郭建良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the variable flow adjustment of the dynamic pressure difference balance valve in the existing central air-conditioning variable flow system. hydraulic imbalance

Method used

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  • Dynamic dual-temperature balance electric regulating valve

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Embodiment Construction

[0013] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0014] figure 1 It is a schematic diagram of a central air-conditioning variable flow system composed of cooling / heating host 1, water pump 2, and terminal heat exchange AHU unit. Through the pressure of water pump 2, water circulates in the system, and first passes through cooling / heating host 1. Cooling / heating, when flowing through the terminal AHU unit, the heat exchange coil 3 and the fan 4 work together to complete the air-water heat exchange, and the air after heat exchange can meet the needs of the indoor load. A dynamic dual temperature balanced electric control valve is installed at the water pipe or outlet pipe to ensure that the AHU receives the change heat exchange command issued by the building BA system controller to be implemented, and maintains the comfort of the air temperature in the supply space of the AHU and the balance of the supply exc...

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Abstract

The invention discloses a new method for realizing the hydraulic balance of the system by installing a dynamic dual-temperature balance electric regulating valve at the inlet or outlet of a heat exchange coil of a central air conditioning variable flow system, and the dual-temperature balance electric regulating valve for realizing the method. The dual-temperature balance electric regulating valveis composed of a water flow regulating valve body, a regulating valve electric drive, a controller, and device inlet and outlet water temperature sensors. When a building BA system controller sensesthat the equipment supply area uses the load change and outputs a standard signal such as 0-10v or 4-20mA that changes the heat exchange intensity to the dynamic dual-temperature balance electric regulating valve, the dynamic dual-temperature balance electric regulating valve changes the temperature difference between gas and water by changing the average temperature of the water side of the heatexchange coil, so that the heat exchange intensity is changed in the real-time non-overcurrent state, the flow rate at the heat exchange end is indirectly changed, and the follow-up change of the heatoutput at the use side and the load variable flow rate on the premise that the supply side water quantity reaches the design index in real time are achieved, thereby achieving balance between the useside and the supply side.

Description

technical field [0001] The invention relates to a new method for hydraulic balance of a variable-flow central air-conditioning system, and a dynamic dual-temperature balance electric regulating valve for realizing the method. technical background [0002] In the central air-conditioning variable flow water system, in order to ensure the controllability of the heat exchange on the use side and the hydraulic balance on the supply side, a dynamic pressure difference balance electric control valve is usually used. The dynamic pressure difference balance electric control valve uses its own spring and diaphragm As well as the pressure induction pipe, a small environment with constant pressure difference is created at both ends of the valve, so that the pressure difference between the front and rear of the valve is always consistent when the valve changes the opening degree and flow rate, so that the valve opening degree and heat exchange intensity are linear, which is convenient fo...

Claims

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Application Information

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IPC IPC(8): F24F11/89
Inventor 郭建良
Owner 郭建良
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