KR20230124812A - Smart control monitoring standalone multi-point heat exchange ventilation system - Google Patents

Abstract

The present invention relates to a smart control monitoring stand-alone multi-point heat exchange ventilation system, wherein the total heat exchange system using a pulp heat exchange element capable of simultaneously adjusting temperature and humidity forcibly discharges polluted indoor air, supplies fresh outside air, and removes fine dust and harmful substances from the room. It removes gas, germs, etc., and removes yellow dust, fine dust, pollen, and dust in the outside air. Compared to ventilation through general air conditioners, cooling and heating costs are reduced by more than 30%, and the temperature difference can be reduced with heat exchange efficiency of about 60 to 80% during ventilation. It controls the amount of ventilation (air flow) by CO2 and air sensors, collects big data through cloud-based distributed control, and integrates algorithms required for AI.
With the present invention, the UV LED sterilization function has the function of sterilizing the filter and keeping the filter clean, and it is possible to prevent bacterial virus contamination of the HEPA filter pre-filter antibacterial filter heating element, and the sterilization that occurs at 405 nm is the principle of 'porphyrin reaction decomposition' It has a heater management function that prevents filter damage even in sub-zero weather in response to four seasons, and it is possible to protect the heating element and air filter from freezing in sub-zero weather or to continuously ventilate, measure the outside air temperature and measure the internal temperature. It can be managed until the point of condensation through management

Description

Smart control monitoring standalone multi-point heat exchange ventilation system}

The invention relates to a smart control monitoring stand-alone multi-point heat exchange ventilation system. As the concentration of outdoor fine dust soared in the 21st century, concerns about whether to ventilate or not have increased due to concerns about this, but experts say ventilation is a priority. It is important to circulate the turbid air in the room by adjusting the air purifier to turbo mode, etc. Since the air quality in a room where the door is tightly closed is not inferior to fine dust, the best thing for now is to ventilate the room when there is no fine dust.

Most buildings that do not have a centralized air conditioning system (HVAC system) with mechanical ventilation are vulnerable to external environmental influences with natural ventilation systems using windows. Harmful substances are emitted, and in summer and winter, the amount of ventilation is reduced to maintain the indoor temperature by cooling and heating, so the indoor air quality can only deteriorate due to fine dust and carbon dioxide.

Pollutants and pollutants generated indoors include the emission of harmful substances by insulation materials of buildings and interior materials, and ventilation is required to keep the indoor air contaminated from various routes such as inflow of pollutants from the outside clean.

The natural ventilation system using windows currently used in most buildings is vulnerable to the influence of external ventilation and has the disadvantage of high energy loss during heating and cooling, so it is urgent to introduce technology to compensate for this.

The technology related to the total heat exchange ventilation system in Korea is widely spread in a relatively short time due to mandatory ventilation facilities, and the level of technology is increasing accordingly.

Ventilation standard: Depending on occupant activity (smoking, cooking, cleaning work, etc.), work (use of a copy machine in a general building, etc.) can

Environmental function that a building aims for: As a residential function of a building, facility systems such as air conditioning, sanitation, electricity, information, and disaster prevention are required. Each system differs in many ways depending on the correlation between the external and internal load factors and the target function, and the degree of systemization determines the function of the building. The purpose of air conditioning means to adjust the quality and quantity of air to satisfy the temperature, humidity, airflow, cleanliness, etc. in a given space by integrating with the functionality of the target building, and to adjust the environment of the given space to the target condition. In order to fit, a systematic solution is sought and the design process proceeds.

In buildings, air-conditioning facilities include construction cost, energy consumption, energy amount at maximum load, system space composition, noise and vibration tolerance and countermeasures, heat source supply system, automatic control, and control method accompanying information management. A balance must be made to suit all conditions (location, scale, structure, use, use time). Air temperature, humidity, airflow, and cleanliness are the four elements of air conditioning, and it is an air handling process that simultaneously controls temperature, humidity, cleanliness, and airflow distribution suitable for the needs of a certain space. HVAC (including ventilation in a broad sense) Heating, Ventilation, Air Conditioning).

Heat recovery technology: The core of heat recovery technology uses a special heat transfer medium (Heat Exchange Core). deliver more than 1% The Flow Chart reduces energy loss due to cooling and heating in winter (heating) and summer (cooling), and secures energy management efficiency with general ventilation (by-pass) without heat exchange in spring/autumn when air conditioning is not performed, and is used for four seasons. . Applications include not only the indoor environment where people live, but also farmhouses, which are sensitive to temperature and humidity, such as mushroom growers, pig farming, and poultry farms. there is

Utilization technology of heat exchanger: Heat transfer is a phenomenon in which heat is transferred from a place with a high temperature to a place with a low temperature. It is a device that transfers heat from one fluid flow to another. A device that reduces the energy of a fluid and increases the energy of a cold fluid. Heat exchangers are manufactured in different types and are widely used in various technologies such as thermal power plants, nuclear power plants, gas turbines, heating devices, air conditioners, refrigeration devices, and the chemical industry.

Special types of heat exchangers have been developed for satellites and spacecraft, but these heat exchangers are called by different names when used for special purposes. Heat transfer phenomena are classified into three types according to their characteristics: conductive heat transfer, convective heat transfer, and radiative heat transfer. In practice, these phenomena are mixed, and it is difficult to interpret, such as a phase change or mass transfer accompanying the transfer of thermal energy.

Republic of Korea Patent Publication No. 10-0964137-0000: Porous Heat Exchanger Element and Production Method of Porous Heat Exchanger Element

The present invention is a heat exchange system that reduces energy costs due to indoor temperature loss using a heat exchange element, which reduces the temperature loss and difference between indoor and outdoor air by means of a heat exchange element, supplies fresh outside air by forcibly discharging polluted indoor air, and It aims to reduce air-conditioning and heating costs compared to ventilation through semi-air conditioning units by removing fine dust, harmful gases, germs, etc., and removing yellow dust, fine dust, pollen, and dust from the outside air.

The present invention develops a cloud-based IOT-controlled air temperature and humidity filter condition monitoring ventilation system to collect big data and process data necessary for AI through cloud-based distributed control, control ventilation (air flow) by CO2 and air sensors, and sensor operation status It is designed to check and control the current value with a smartphone.

The present invention is designed with a function that can sterilize the filter and maintain filter cleanliness optimally with UV LED sterilization function, so that the HEPA filter pre-filter antibacterial filter has the function of preventing bacterial virus contamination and the sterilization that occurs at 405 nm is 'porphyrin reaction decomposition' use the principle

The present invention utilizes a smartphone to set the circulation method, monitor the operation status, and monitor temperature, humidity, dust, CO2, and control anytime, anywhere in the Wi-Fi or Internet space. It is designed to do.

An object of the present invention is to design a heater management function to prevent filter damage even in sub-zero weather in response to weather in all four seasons.

The present invention is equipped with functions to set circulation method and monitor operation status and temperature, humidity, dust and CO2 monitoring by using a smartphone, so that it can be controlled anytime and anywhere in the space where Wi-Fi or Internet is used, and it is equipped with a function to adjust air volume operation time according to indoor air dust or CO2 concentration conditions. design as a product

Due to the present invention, the supply time and discharge time are adjusted by reflecting the indoor and outdoor temperatures and the temperature of the heat exchanger element, and the discharge time and supply time are designed to enable repetition interval setting when using a single installation structure.

[Independent structure installation method]

[Multi-point installation method for double circulation air flow]

The total heat exchange system using a pulp heat exchange element capable of controlling temperature and humidity at the same time forcibly discharges polluted indoor air, supplies fresh outside air, removes indoor fine dust, harmful gases, bacteria, etc. Remove pollen, dust, etc. Compared to ventilation through general air conditioners, cooling and heating costs are reduced by more than 30%, and the temperature difference can be reduced with heat exchange efficiency of about 60 to 80% during ventilation.

The cloud-based IOT control monitoring total heat exchanger system controls the amount of ventilation (air flow) by CO2 and air sensors, collects big data through cloud-based distributed control, and is equipped with algorithms required for AI. can make it functional.

It has the function of sterilizing the filter and keeping the filter clean with the UV LED sterilization function, and it is possible to prevent bacterial virus contamination of the HEPA filter pre-filter antibacterial filter and the heating element, and the sterilization that occurs at 405 nm uses the principle of 'porphyrin reaction decomposition'.

Prototype production and convenient filter replacement products are designed for commercialization models, and it has a filter structure that allows users to easily replace it by a simple fastening method that does not require tools. It is composed of

There is a heater management function that prevents filter damage even in sub-zero weather in response to four seasons, and it is possible to protect the heating element and air filter due to freezing in sub-zero weather or to continuously ventilate. can be managed up to

Design a high-efficiency ventilation system by utilizing sensors and timers when performing ventilation to improve air quality in a certain space. Applications can be diversified by monitoring and monitoring abnormal conditions of temperature and humidity inside a certain space, and securing status monitoring functions. It is possible to supply and expand operation of technology to high value-added industries such as medical facilities by developing convergence products through microprocessor H/W design related to compact ventilation control devices.

1 is a heat exchange element made of a temperature and humidity moving pulp material that forcibly discharges polluted indoor air and supplies fresh outside air.
2 is a block diagram of a heat exchange system according to an optimal design that establishes perfect noise blocking and effects.
3 is a block diagram of an IOT circuit that processes data necessary for big data collection and AI with Cloud-based distributed control
4 is a function of setting a circulation method and monitoring operating conditions and monitoring temperature, humidity, dust, and CO2 using a smartphone.

The terms used in the present invention have been selected from general terms that are currently widely used as much as possible, but in certain cases, there are terms arbitrarily selected by the applicant. Therefore, its meaning should be understood.

Hereinafter, the technical configuration of the present invention will be described in detail with reference to preferred embodiments shown in the accompanying drawings.

However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Like reference numbers indicate like elements throughout the specification.

Performance of waste heat recovery ventilator: Terms describing the total heat exchanger include leakage rate, temperature exchange efficiency, humidity exchange efficiency, total heat exchange efficiency, and energy meter. The leak rate is a virtue that represents the ratio of the amount of air leaked between the ventilation side and the air supply side fan of the waste heat recovery ventilation unit, and the temperature and humidity exchange efficiency represents the ratio of temperature and humidity exchanged between the air supply and ventilation. The total heat exchange efficiency represents the ratio of heat exchanged between the supply air and the ventilation, the effective total heat exchange efficiency is the efficiency considering the leakage rate in the total heat exchange efficiency, and the energy coefficient represents the energy exchange amount of the supply air side against the power consumption. The temperature exchange efficiency is an efficiency that indicates how much the indoor air heats or cools the outside air by exchanging sensible heat between the indoor air and the outdoor air.

This efficiency has the disadvantage that the higher the leakage rate, the higher the efficiency because the air leakage of the unit is not half-heated. However, a product with a very low leakage rate and high temperature efficiency can be said to be an excellent product. Total heat exchange efficiency, which is an important variable in terms of energy efficiency, is the relative ratio between the enthalpy difference between outdoor air and ventilation and the enthalpy difference between outdoor air and supply air.

The operating noise of the total heat exchanger varies depending on the fan's air flow rate, static pressure, and rotational speed. Products with high noise are likely to cause civil complaints when used in public housing, so a careful approach is required.

Design and method of smart ventilation system using environmental sensors: Electrochemical sensor refers to a sensor that converts the relationship between current, electric potential, charge and chemical factors into useful signals that can be measured through changes in electrical quantities. Electrochemical sensing The system exhibits characteristics such as high sensitivity, selectivity, wide linearity, minimal space, low power, and low cost.

Element technology is a concept that has been expanded and developed from the existing medical lab-on-a-chip concept to monitor environmental pollutants on a chip. The main element technologies are preprocessing technology, marker technology, fluid control technology, and measurement technology. , it can be classified as a complex multiplex analysis technique.

The solid electrolyte type CO2 sensor has a characteristic that the electromotive force (EMF) decreases according to the concentration of carbon dioxide like a battery, and this electromotive force is very sensitive to the operating temperature or ambient temperature. Produce a module that further improves the accuracy of the sensor by compensating the characteristic change value of the sensor according to the temperature change around the built-in sensor.

The signal processing system consists of an amplifier that amplifies the small analog signal obtained from the sensor, an ADC (Analog-to-Digital Converter) that converts it into a digital signal, and the processed digital signal into figures or graphs that can be recognized by humans. It consists of a signal processing part that displays.

Electrochemical carbon dioxide sensor module: The characteristics of the solid-state electrochemical carbon dioxide sensor are improved by changing the materials of the solid electrolyte, sensing electrode, reference electrode, protective layer and encapsulation, or adjusting the structure and packaging material of the entire sensor packaging. Its performance is determined by the technology of compensating the measured data and temperature to display more accurate output data, the technology of automatic temperature control to shorten the initial operation and extend the life of the sensor, and the technology of the circuit board. The output impedance of the electrochemical sensor is more than several MΩ, and since it is variable according to the concentration of the sensor, the input impedance of the voltage measuring device uses a high-performance OPAMP exclusively for measuring instruments that can maintain more than several tens of GΩ. As the ADC (Analog to Digital Converter) at the input stage has a resolution of 10 bits, it secures the precision of tens of microvolts, converts the voltage input from the high-performance OPAMP into a digital signal, uses one PWM channel, and maintains the temperature of the sensor. use.

Environmental sensor signal processing: The signal detected by the environmental sensor is output as a change in voltage value through the Wheatstone bridge circuit, and it is converted into an effective signal through a filter and signal amplification. In 1955, R.P. of the MIT Lincoln Laboratory. Sallen and E.L. Key announced SKF (Sallen Key Low Pass Filter) topology, and designed a filter circuit by applying an active Sallen-Key filter.

1. Operational amplifier with unity gain

2. Same R or same C

For a single secondary stage, the designer has only three performance factors: DC gain, ω0 (characteristic frequency of the secondary pole pair), and Q (indicating the pole complexity). However, this circuit has 5 components: 2 R's, 2 C's, and the amplifier gain.

- Active Sallen-Key filter topology

* Advantages over LC-Larger bandwidth, parts, no magnetic emission

* Component values determine filter characteristic

* Capacitor codes fixed, resistance 'dialed-in' via trim potentiometers

* Two low-pass filters with a slope of -40dB/decade

* Sharp response near passband edges by CA

Establishment of perfect noise blocking effect through optimized design: Blocks noise caused by air vibration by using a specially processed heat exchange membrane and minimizes noise during operation by securing maximum airtightness within the machine. Eliminate noise.

Utilizing component technology by applying it to the biosensor-related market: Japanese companies such as Matsushita, Hitachi, and Horiba Biotechnology are leading the biosensor market, and Matsushita (Japan) has been researching and developing products related to biosensor measurement for environmental measurement in addition to medical use. . Hitachi (Japan) has been researching and developing biosensors for environmental measurement, and Horiba Biotechnology (Japan) has developed high-sensitivity sensors for environmentally hazardous chemicals such as endocrine disruptors, pesticide residues, and dioxins, commercializing and integrating systemization technology with biotechnology. By doing so, we aim to open up a new market in the field of medical devices, and establish the basic technology for the development of measurement devices necessary for the development of high-sensitivity detection and measurement technology.

As described above, the present invention has been shown and described with preferred embodiments, but is not limited to the above embodiments, and to those skilled in the art within the scope of not departing from the spirit of the present invention Various changes and modifications will be possible.

Claims (4)

Design of a total heat exchange system using a pulp heat exchange element capable of controlling temperature and humidity simultaneously;
It can forcibly discharge polluted indoor air, supply fresh outdoor air, and remove indoor fine dust, harmful gases, germs, etc.;
It can remove yellow dust, fine dust, pollen, dust, etc. from the outside air, and it can reduce heating and cooling costs by more than 30% compared to ventilation through general air conditioners, and the temperature difference is reduced with heat exchange efficiency equivalent to that of ventilation (60~80%). to reduce; Smart control monitoring stand-alone multi-point heat exchange ventilation system. Development of cloud-based IOT control air temperature and humidity filter condition monitoring ventilation system;
It is possible to control the amount of ventilation (air flow) by CO2 and air sensors, and it is equipped with algorithms required for big data collection and AI with cloud-based distributed control;
Depending on the sensor operating state, the current value can be checked with a smartphone, and smartphone control is possible; Smart control monitoring stand-alone multi-point heat exchange ventilation system. UV LED sterilization function designed to sterilize the filter and keep the filter clean;
It is a function to prevent contamination of the HEPA filter, pre-filter, antibacterial filter, and heating element from bacteria and viruses. The sterilization that occurs at 405 nm uses the principle of 'porphyrin reaction decomposition';
It is a filter structure that can be exchanged by the user with a simple fastening method that does not require tools, and the HEPA filter, pre-filter, antibacterial filter and heating element can be selected by the user; Smart control monitoring stand-alone multi-point heat exchange ventilation system. All-season response Heater management function design to prevent filter damage in sub-zero weather;
Smart control monitoring stand-alone multi-point heat exchange ventilation system that protects the heating element and air filter from freezing in sub-zero weather, enables continuous ventilation, and manages the condensation point by managing the deviation of the external air temperature measurement and internal temperature measurement.