Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Variable-frequency ventilation system for cabin

A technology of ventilation system and variable frequency fan, applied in the direction of hull ventilation/heating/cooling, ship parts, ships, etc., can solve the problems of inability to control the air volume and air pressure of the engine room, poor energy saving effect, waste of electric energy, etc.

Pending Publication Date: 2020-03-31
CRCC HARBOR & CHANNEL ENG BUREAU GRP +2
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current engine room ventilation uses fixed-speed fans. This configuration has two main disadvantages: 1. It cannot independently control the air volume and wind pressure in the engine room; 2. The energy-saving effect is poor. This will cause a waste of electricity

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
  • Variable-frequency ventilation system for cabin
  • Variable-frequency ventilation system for cabin
  • Variable-frequency ventilation system for cabin

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0019] Including frequency conversion fan control system in engine room, IAS whole ship alarm system, frequency converter, damper control motor, temperature sensor, pressure difference sensor, frequency conversion fan and electric damper; The engine room frequency conversion fan control system, including the engine room frequency conversion fan control system including PLC and touch screen, each fan is equipped with a frequency converter to realize the frequency conversion control of the fan;

[0020] In the engine room, there are 2 differential pressure sensors, one for use and one for standby. The cabin maintains a slight positive pressure of 0-50Pa (can be set), when the pressure difference is higher than 100Pa (can be set) or lower than -20Pa (can be set set), an alarm will be issued (non-stop fan);

[0021] In the engine room, configure 5 temperature sensors and install them in places with typical characteristics. The average value of the measured temperature is used for ...

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

The invention relates to a variable-frequency ventilation system for a cabin which comprises a cabin variable-frequency fan control system, an IAS whole-ship alarm system, a frequency converter, an air brake control motor, a temperature sensor, a differential pressure sensor, a variable-frequency fan and an electric air brake. And the cabin variable-frequency fan control system is connected with the IAS whole-ship alarm system. The rotating speed of the exhaust fan is preferentially adjusted in real time according to the differential pressure signal; the pressure difference in the cabin is kept at a set value (such as 30Pa), and when the temperature meets the requirement and the rotating speed of the exhaust fan is reduced to the minimum, the pressure difference in the cabin is still lowerthan the set value (such as 15Pa), so that the rotating speed of the air feeder is adjusted in real time, and ventilation and temperature adjustment are realized.

Description

technical field [0001] The invention relates to the field of ships, in particular to a frequency conversion ventilation system for an engine room. Background technique [0002] The task of engine room ventilation is to reduce the temperature of the engine room, remove the oil gas and water vapor in the engine room, and supply sufficient fresh air to the engine room, so as to ensure the normal operation of the power plant and improve the working and hygienic conditions of the engine room management personnel. The current engine room ventilation uses fixed-speed fans. This configuration has two main disadvantages: 1. It cannot independently control the air volume and wind pressure in the engine room; 2. The energy-saving effect is poor. This will cause a waste of electric energy. Contents of the invention [0003] In order to overcome the deficiencies of the existing engine room ventilation system, a real-time adjustment of the speed of the exhaust fan is provided to ensure...

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): B63J2/06
CPCB63J2/06
Inventor 许四发金国亮黄剑胡清伟王永东刘齐辉宋志国甄义省程旭东金晔姜威威林雄
Owner CRCC HARBOR & CHANNEL ENG BUREAU GRP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com