Automatic adjustment method of working point of fresh air ventilator
A technology of automatic adjustment and fresh air fan, applied in the direction of machine/engine, mechanical equipment, pump control, etc., it can solve the problems of undetermined working state point and out-of-control adjustment.
Active Publication Date: 2018-11-06
TONGJI UNIV
View PDF4 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The present invention aims at the deficiencies in the prior art, and aims to provide an automatic adjustment method for the working point of the fresh air blower, so as to solve the problems of the existing fresh air blower such as repeated manual tests, undetermined working state point during operation, and out-of-control adjustment. Realize the automatic identification of the working state point of the fresh air machine and the optimization of the working point, and provide guarantee for the high efficiency, energy saving and low noise operation of the fresh air machine
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0105] The automatic adjustment method of the fresh air machine working point of the present embodiment comprises the following steps:
[0106] (1) Under the input signal of the fresh air blower motor (DC voltage is 12V), the input voltage V of seven fresh air blower motors is obtained through the performance test of the fresh air blower. sp , the test data of the five fresh air fans’ external residual pressure H, the motor’s operating power N, the fresh air volume L and the fresh air’s operating noise Z are as follows: figure 2 As shown, the solid square curve represents the operating power N of the motor, the air volume L of the fresh air fan and the input voltage V of the motor sp The relationship between the hollow square curve represents the operating power N of the motor, the operating noise Z of the fresh air fan and the input voltage V of the motor sp The relationship between.
[0107] (2), based on the operating power N of the motor and the input voltage V of the m...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an automatic adjustment method of a working point of a fresh air ventilator. The method comprises the following steps that under the input signals of a plurality of fresh air ventilator motors, technical parameters such as the input voltage of the motors, the operating power of the motors, the air volume of the fresh air ventilator, the outside residual pressure of the fresh air ventilator and the running noise of the fresh air ventilator are obtained through a performance test of the fresh air ventilator. According to the automatic adjustment method of the working point of the fresh air ventilator, the relationship between the operating state parameters of the fresh air ventilator is fitted through a large amount of experimental data, the working area of the freshair ventilator is established, the state of the working point of the fresh air ventilator and the input voltage of the motors after automatic adjustment are determined by monitoring the input voltageand the operating power of the motors when the fresh air ventilator is during operation, so that the automatic identification of the working state point of the fresh air ventilator and the optimization of the working point are realized, the problems of lack of automatic identification of the working point, noise control, uncontrolled adjustment and the like in the running process of a fresh air ventilator in the current market are solved, and the purposes of running the fresh air ventilator under the conditions of high energy efficiency, large air volume and low noise are achieved.
Description
technical field [0001] The invention belongs to the technical field of ventilation, and in particular relates to a method for automatically adjusting the operating point of a fresh air fan. Background technique [0002] At present, the fresh air fans in the fresh air market lack the identification technology of the status point of the fan system. At present, the fresh air fans need to test the air volume and pressure head of the pipeline system through the wind speed method or the differential pressure method to determine the air volume of the whole system and the external air volume of the fresh air fan during operation. Residual pressure, under different pipeline designs, construction sites and operating conditions, the air volume and external residual pressure of the entire fresh air system need to be determined by manual testing. However, the test conditions do not necessarily exist in the pipeline system, which leads to large errors or inaccurate test results. At the s...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): F04D27/00
CPCF04D27/00F04D27/001
Inventor 高军唐波曹昌盛
Owner TONGJI UNIV