Control method of constant-air-volume split fresh air

A control method and technology of constant air volume, applied in the control field of split fresh air with constant air volume, can solve the problems of detection deviation of fresh air volume, inability to obtain fresh air volume accurately, and inability to accurately base on fresh air volume, etc., so as to reduce the overall power, The effect of reducing power

Pending Publication Date: 2020-12-22
浙江纳风净化技术有限公司 +1
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since the number of people in the room changes, and the difference in the location of relevant sensors and the delay in collecting data will cause deviations in the detection of fresh air volume, the actual demand for fresh air volume cannot be accurately obtained, resulting in the inability to accurately obtain the actual air volume. The required fresh air volume, the problem of accurately controlling the fresh air volume 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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Control method of constant-air-volume split fresh air
  • Control method of constant-air-volume split fresh air

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings.

[0036] A control method for split fresh air with constant air volume, comprising the following steps,

[0037] (1) Start the fresh air fan, set the operating air volume and the number of air changes, which can be freely set according to user needs;

[0038] (2) Calculating the ratio of fresh air volume and exhaust air volume. Since the operating air volume is preliminarily set in step (1), the exhaust air volume can be calculated according to the room volume and the number of air changes, so as to determine the ratio;

[0039] (3) Adjust the speed of each fan (i.e., exhaust fan, supply fan, and intake fan) in the fresh air system according to the ratio of fresh air volume, so that the air intake and exhaust air volume of the fresh air system follow the steps in (2) The proportioning operation of multiple fans is adjusted at the same time to realize the linkage of mult...

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

No PUM Login to view more

Abstract

A control method of constant-air-volume split fresh air comprises the following steps of (1) starting a fresh air fan, and setting a running air volume; (2) calculating a fresh air volume and an exhaust air volume ratio; (3) adjusting the rotating speed of each fan in a fresh air system according to the ratio of the fresh air volume; (4) inspecting, by the sensor, the cleanliness of a filter screen, wherein if the cleanliness of the filter screen meets a set value, the air inlet fan works normally; (5) detecting the air inlet amount of an air inlet fan, wherein if the set air volume is met, the fan of the fresh air works normally, and if the set air volume is not met, a signal is sent to an air feeder, and the rotating speed of the air feeder is adjusted; (6) if the cleanliness of the filter screen does not meet the set value in the step (4), adjusting the rotating speed of the air inlet fan and the rotating speed of the air feeder at the same time; and (7) adjusting the rotating speedof the exhaust fan according to the proportion of the exhaust air volume. The air volume can be more accurately controlled by the control method, and the power of a fresh air system can be effectively reduced.

Description

technical field [0001] The invention belongs to a fresh air volume control method, in particular to a constant air volume split fresh air control method. Background technique [0002] The demand for fresh air volume of fresh fans is usually generated by indoor personnel and buildings. The demand for fresh air volume of some buildings is mainly related to the area of ​​the air-conditioning area, and the calculation is relatively simple. At present, the fresh air volume design of the indoor personnel demand in the industry usually uses sensors to estimate the maximum number of personnel, and realizes the control of the fresh air volume of the fresh machine according to the maximum number of personnel. [0003] However, since the number of people in the room changes, and the difference in the location of relevant sensors and the delay in collecting data will cause deviations in the detection of fresh air volume, the actual demand for fresh air volume cannot be accurately obtain...

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
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): F24F7/007F24F11/77F24F11/64
CPCF24F7/007F24F11/64F24F11/77Y02B30/70
Inventor 易元利李龙伟曹国鑫黄少云
Owner 浙江纳风净化技术有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap