Central air-conditioning terminal intelligent dynamic constant-current control device
An intelligent dynamic and constant current control technology, which is applied to the control device at the end of the central air conditioner and the field of valve control device, can solve the problems of variable pressure difference, poor comfort, stable indoor temperature, etc.
Inactive Publication Date: 2012-05-30
陈旸
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Problems solved by technology
The obvious defect of this traditional air-conditioning control method is that the on-off of the electric valve cannot stabilize the indoor temperature at Ts, which brings poor comfort and energy waste. In addition, the water balance of the entire air-conditioning system is often under pressure. Poor Variability and Destabilization
Method used
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Embodiment 1
[0010] The central air-conditioning terminal intelligent dynamic constant current control device of this embodiment is as follows: figure 1 As shown, the fan coil unit 1 is placed near the air outlet of the fan 2, and the two nozzles are respectively connected to the water inlet and return pipes as the liquid refrigerant. Electric cut-off valve 14 is housed in the water inlet pipeline, is provided with valve disc 13 between its inlet and outlet, and the middle part of this valve disc 13 is fixedly connected with the valve stem lower end that can move up and down in the valve body. The upper part of the valve body is equipped with a thermal driver 4, which contains an electric heating sheet 11 connected to the output end of the temperature controller, and a thermal expansion chamber 10 placed above the electric heating sheet. The thermal expansion chamber 10 is filled with paraffin wax 9, and the top of the paraffin wax rests on the The lower end of extruding rod 8, the upper e...
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The present invention relates to a control device of a central air conditioning terminal, belonging to the air conditioning control technical field. The device mainly comprises a fan coil, an electric control valve and a temperature controller, wherein the signal input terminal of the temperature controller is connected with a temperature sensor arranged at a specified position, and the control output terminal is connected with the controlled end of the electric control valve. A thermal power driver is arranged in the electric control valve, the thermal power driver comprises electric heatingcomponents connected with the control output terminal of the temperature controller and heat expansion components arranged near the electric heating components, one end of the heat expansion component is connected with the valve rod of the electric control valve through a union motion mechanism. In this way, the electric control valve is not directly controlled by the on-off control signal of thetemperature controller, but the output of the temperature controller controls the temperature of the electric heating components, to control the expansion rate of the heat expansion components, and to control the opening degree of the valve rod through the union motion mechanism, as a result the traditional on-off temperature control way is thoroughly changed, and the accurate regulation of the outside temperature can be realized by the opening degree of a stepless adjusting-controlling valve, to achieve the purposes of energy source saving and an ideal air conditioning effect.
Description
technical field [0001] The invention relates to a valve control device, in particular to a control device at the end of a central air conditioner, and belongs to the technical field of air conditioner control. Background technique [0002] As far as the applicant knows, the end of the existing central air conditioner is usually mainly composed of a fan coil unit placed near the fan outlet, an electric valve installed in the liquid refrigerant (usually water) pipeline, and a temperature controller. The signal input terminal of the valve is connected to the temperature sensor placed at the set position, and its control output terminal is connected to the controlled end of the electric valve. [0003] During operation, the temperature controller compares the set temperature Ts with the detected temperature Tm. Once Tm is greater than Ts, the temperature controller outputs a control signal to open the electric valve, otherwise it closes the electric valve. The obvious defect of...
Claims
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IPC IPC(8): F24F11/053F24F11/76
Inventor 陈旸
Owner 陈旸