Industry information - Page 6 - Industrial purification heat recovery

How does a rotary heat exchanger work?

The wheel is built up by a matrix that consists of two foils, one flat and one corugated;together, they create channels for the air to pass through. The wheel is rotated by an electricmotor and belt drive system.
In one half of the rotation, the exhaust air from the inside space flows through the matrix. ltsheat is stored in the matrix, and in the other half of the rotation, it is transferred to the freshsupply air from outside.
The size of the channel is called well height. Different well heights and diameters of thewheel give different efficiencies, pressure drops, and airflow rates.
Rotary heat exchangers that are properly constructed, installed, and maintained have almostzero transfer of particle-bound pollutants.

Principle of rotary heat recovery fresh air unit

The main component of the rotary heat recovery fresh air unit is a disc-shaped heat storage wheel, which is made of aluminum foil wound into a honeycomb shape as the heat storage body. During operation, fresh air passes through one half circle of the heat exchanger, while exhaust air flows in the opposite direction through the other half circle. The heat storage wheel rotates continuously at a speed of about 10 revolutions per minute under the action of the power mechanism, and the heat storage body is constantly heated on the high-temperature half circle side, absorbing heat; When rotating to the low-temperature semicircle side, it is cooled and releases heat. This process repeats itself, recovering some of the energy (cold and heat) from the exhaust air into the fresh air. A moisture absorbing material is coated on the surface of the aluminum foil to create a fully heated rotor. The moisture in the airflow enters the moisture absorbing coating and is released when the rotor reaches another airflow. The composition of the rotor type heat recovery fresh air fan is to use the exchange of sensible and latent heat between the fresh air and exhaust air to recover energy, achieving energy conservation and maintaining good ventilation. In summer, the fresh air can be pre cooled and dehumidified, and in winter, it can be preheated and humidified.

Plate type air-to-air heat exchanger made of polymer PP material

The plate type air-to-air heat exchanger made of polymer PP (polypropylene) material is a heat exchange device based on polypropylene material, mainly used for heat exchange between gases. Here are its main features and application areas:

Main features:
Corrosion resistance: PP material has strong chemical corrosion resistance and is suitable for acidic or alkaline gas environments, especially performing well in industrial environments with strong corrosiveness.

Lightweight: Compared to metal heat exchangers, PP material heat exchangers are lighter in weight, making them easier to install and maintain.

Good thermal stability: Polypropylene has good thermal stability and can typically operate within a temperature range of -10 ° C to+95 ° C.

High cost-effectiveness: Due to the low cost of PP material and relatively easy processing, the overall cost is relatively economical.

Environmental friendliness: Polypropylene is a recyclable polymer material with minimal impact on the environment after disposal.

Main application areas:
Chemical and pharmaceutical industries: used for heat recovery or temperature regulation of corrosive gases.
Exhaust gas treatment system: During the air purification process, heat is recovered from harmful gases through a heat exchanger.
Food processing: In some food production processes, it is used for gas exchange to maintain the stability of environmental temperature.
HVAC system: Used in the ventilation and air conditioning systems of buildings for air preheating or pre cooling, improving energy efficiency.
The plate type air-to-air heat exchanger made of polypropylene material has become an ideal choice for many specific industrial fields due to its unique corrosion resistance and good cost-effectiveness.

How does a counterflow heat exchanger work?

In the counterflow heat exchanger, two neighboring aluminum plates create channels for the air to pass through. The supply air passes on one side of the plate and the exhaust air on the other. Airflows are passed by each other along parallel aluminum plates instead of perpendicular like in a crossflow heat exchanger. The heat in the exhaust air is transferred through the plate from the warmer air to the colder air.

Sometimes, the exhaust air is contaminated with humidity and pollutants, but airflows never mix with a plate heat exchanger, leaving the supply air fresh and clean.

High temperature welded stainless steel plate heat exchanger

High temperature welded stainless steel plate heat exchanger is an efficient heat exchange device that achieves heat exchange between fluids by stacking multiple thin stainless steel plates to form countless microchannels. This type of heat exchanger has the advantages of compact structure, high heat transfer efficiency, high temperature resistance, corrosion resistance, etc., and is particularly suitable for gas waste heat recovery under high temperature conditions. High temperature gas enters one side of the heat exchanger, while low temperature gas enters the other side. Two types of gases exchange heat in the channels of thin stainless steel plates, and high-temperature gases transfer heat to low-temperature gases, achieving waste heat recovery. Widely used in industrial furnaces, metallurgical industries, chemical industries, incinerators, and other places. Plate heat exchangers have significant advantages in gas waste heat recovery, which can effectively improve energy utilization efficiency and reduce production costs. When selecting and using this type of heat exchanger, factors such as the characteristics of high-temperature gases and process requirements should be comprehensively considered, and appropriate models and materials should be selected.

Combustion furnace waste heat recovery, temperature resistance 450 ℃, pressure resistance 10000pa gas plate heat exchanger

The high-temperature and high-pressure gas plate heat exchanger in the waste heat recovery system of the combustion furnace is a specially designed equipment for recovering heat energy from high-temperature exhaust gas. This type of heat exchanger needs to operate stably in a high temperature of 450 ℃ and a high pressure environment of 10000Pa, and is suitable for various industrial applications such as petrochemical, steel, and power generation industries. The following is a detailed description of its working principle, main components, advantages, and applicable scenarios.

operational principle
The gas plate heat exchanger utilizes the heat of high-temperature exhaust gas to transfer heat to the cold air through stainless steel heat transfer plates, thereby preheating the cold air and improving the energy efficiency of the system. The specific process is as follows:

High temperature exhaust gas inflow: High temperature exhaust gas enters the heat exchanger through the inlet.
Heat transfer: High temperature exhaust gas flows through a stainless steel heat transfer plate, and heat is transferred to the cold air on the other side through the plate.
Cold air heating: Cold air is heated by the heat transfer plate through the other channel of the heat exchanger.
Cooling exhaust gas discharge: The cooled exhaust gas is discharged from the heat exchanger, and the heat energy is recovered.
advantage
Efficient heat transfer: Materials with corrugated structure design and high thermal conductivity ensure efficient heat exchange.
High temperature and high pressure resistance: able to operate stably under high temperature of 450 ℃ and high pressure of 10000Pa.
Corrosion resistance: Stainless steel material provides excellent corrosion resistance and is suitable for various industrial exhaust gas components.
Energy conservation and environmental protection: effectively recover waste heat, reduce energy consumption and greenhouse gas emissions.

Stainless steel plate heat exchanger for organic waste gas combustion furnace

Regenerative Thermal Oxidizer (RTO) is a device for treating organic waste gases (VOCs), which oxidize organic matter into harmless carbon dioxide and water through high-temperature combustion. During this process, a large amount of high-temperature flue gas is generated, and if the thermal energy of these flue gases is not recycled, it will cause great energy waste. Stainless steel plate heat exchangers are key equipment for improving the overall efficiency of RTO systems for waste heat recovery.
Stainless steel plate heat exchangers utilize the heat energy of high-temperature exhaust gas to transfer heat to cold fluids (usually fresh air or process water) through heat transfer plates. High temperature exhaust gas is discharged from RTO and enters one side of the plate heat exchanger. When the exhaust gas flows through the heat exchanger, heat is transferred to the cold fluid on the other side through a stainless steel heat transfer plate. The cold fluid is heated in the heat exchanger and absorbs the heat from the exhaust gas. After being cooled, the exhaust gas is discharged, and the heat energy is recovered for preheating fresh air or other process flows.
Heat transfer plates are usually designed as corrugated or other complex structures to increase heat transfer area and efficiency. The material used is 304 or 316 stainless steel, which has excellent corrosion resistance and high strength,
The utilization of stainless steel plate heat exchangers greatly reduces energy consumption and greenhouse gas emissions. Plate heat exchangers have a compact structure, which is smaller in footprint and easier to install compared to traditional shell and tube heat exchangers.
Stainless steel plate heat exchangers are widely used in industries such as petrochemicals, coatings, pharmaceuticals, and food processing
The stainless steel plate heat exchanger plays a crucial role in the waste heat recovery system of RTO organic waste gas combustion furnace, which can effectively improve the energy utilization efficiency of the system, reduce operating costs, and meet environmental requirements. Choosing the appropriate heat exchanger structure and material based on the specific application environment and requirements can maximize its advantages and ensure the long-term stable operation of the system.

Zibo Qiyu Energy-Saving Air Conditioning Equipment Co.,Ltd.

Zibo Qiyu Energy-Saving Air Conditioning Equipment Co.,Ltd.is a professional manufacturer of air-to-air heat exchangers and other energy-saving HVAC equipment.The company is located in Zhangbei Road,Huantai County,Zibo City,Shandong Province,China.The company was founded in 2005 and has since grown to become a leading supplier of energy-saving HVAC equipment in China.
Zibo Qiyu's products are widely used in a variety of applications,including:
Commercial buildings
Industrial facilities
Hospitals
Schools
Data centers
The company's products are known for their high efficiency,reliability,and durability.Zibo Qiyu is committed to providing its customers with high-quality products and excellent customer service.
Here are some of the company's products:
Counterflow plate air-to-air heat exchangers
Counterflow plate air-to-air heat exchangers are a type of heat exchanger that uses a series of thin,metal plates to transfer heat between two air streams.The air streams flow in opposite directions(counterflow)through the plates,which maximizes the amount of heat that can be transferred from the hot stream to the cold stream.
[Image of Counterflow plate air-to-air heat exchangers]
Rotary heat exchangers
Rotary heat exchangers are a type of heat exchanger that uses a rotating drum to transfer heat between two air streams.The drum is divided into two compartments,and each compartment is filled with a heat transfer medium.As the drum rotates,the hot air stream and the cold air stream pass through the compartments,and the heat transfer medium transfers heat from the hot air stream to the cold air stream.
Run-around heat exchangers
Run-around heat exchangers are a type of heat exchanger that uses a liquid to transfer heat between two air streams.The liquid is pumped through a closed loop,and it absorbs heat from the hot air stream and then releases the heat to the cold air stream.
Zibo Qiyu is a leading manufacturer of energy-saving HVAC equipment.The company's products are known for their high efficiency,reliability,and durability.Zibo Qiyu is committed to providing its customers with high-quality products and excellent customer service.
Here are some of the company's awards and honors:
National High-Tech Enterprise
Shandong Province Famous-Brand Product
Zibo City Energy-Saving Demonstration Enterprise
Zibo Qiyu is a well-respected company in the HVAC industry.The company is committed to providing its customers with the best possible products and services.If you are looking for a high-quality,energy-efficient HVAC solution,Zibo Qiyu is a great option.
Here is the company's contact information:
Address:Zhangbei Road,Huantai County,Zibo City,Shandong Province,China
Phone:+86-15753355505
I hope this helps!Let me know if you have any other questions.

How to improve the thermal energy quality of waste heat recovery heat pumps?

The waste heat recovery heat pump utilizes a compressor to do work, elevating low-temperature heat energy to high-temperature heat energy, thereby improving the quality of heat energy. Specifically, there are two main ways for waste heat recovery heat pumps to improve thermal energy quality:

Increase the temperature of thermal energy
The waste heat recovery heat pump can increase the low-temperature waste heat (such as 60 ℃) to high-temperature thermal energy (such as 90 ℃), meeting the application needs of higher temperatures. For example, a waste heat recovery heat pump can recover and utilize the waste heat from industrial waste gas for heating or hot water preparation.

Improve the utilization rate of thermal energy
The waste heat recovery heat pump can extract the available heat from low-temperature waste heat and transfer it to high-temperature heat energy, improving the utilization rate of heat energy. For example, waste heat recovery heat pumps can recycle the waste heat from data centers for cooling or heating purposes.
The advantages of waste heat recovery heat pumps in improving thermal energy quality:
Energy saving: Waste heat recovery heat pumps can utilize waste low-temperature heat energy, reduce the use of fossil fuels, and improve energy efficiency.
Environmental protection: Waste heat recovery heat pumps can reduce greenhouse gas emissions, which is beneficial for environmental protection.
Economy: Waste heat recovery heat pumps can reduce production costs and improve economic benefits.
Application of waste heat recovery heat pumps:
Industry: Industrial waste heat recovery and industrial hot water recovery
Architecture: Building heating, building hot water preparation
Data Center: Data Center Waste Heat Recovery
With the continuous improvement of energy conservation and emission reduction requirements, the application of waste heat recovery heat pumps will become increasingly widespread.

Hebei Yixue Refrigeration Technology Co., Ltd.

Hebei Yixue Refrigeration Technology Co., Ltd. is located at No. 13, Weixian Economic Development Zone, Zhangjiakou City, Hebei Province, with a registered capital of 50 million yuan. It is a modern service provider that integrates cold and hot technology research and development, cold chain logistics equipment manufacturing, cold chain warehousing, and smart logistics services. The company currently has 37 employees and a factory area of over 30000 square meters. Mr. Wei Runhua, the founder, has been engaged in the refrigeration industry for 37 years, dedicated to the research and manufacturing of refrigeration equipment.
About Us
The company has obtained ISO9001, ISO45001, ISO14001 and intellectual property system certifications, and its products have obtained EU CE certification. It currently has more than 20 invention patents, software works, and books and publications. It is a full industry chain company that integrates high-end equipment manufacturing, refrigeration technology research and development, and cold chain logistics services.
Since its strategic transformation in 2021, Yixue has established a city level industrial design center, a city level cold and hot technology center, and an innovation center. It has been rated as a national high-tech enterprise, a "specialized, refined, unique, and new" small and medium-sized enterprise, and an intellectual property advantage enterprise in Hebei Province.
The enterprise has won the Global Top 20 Food Loss Reduction Competition of the Food and Agriculture Organization of the United Nations (FAO) and has been shortlisted for the National Competition of the China Innovation and Entrepreneurship Competition (High end Equipment Manufacturing Field). It has been reported by 34 official media outlets, including People's Daily, Xinhua News, China Daily, Economic Daily, Hebei Daily, Zhangjiakou News, as well as government agencies such as Hebei Provincial Department of Commerce, Hebei Provincial Department of Science and Technology, and Hebei Provincial Federation of Overseas Chinese.

Industrial purification heat recovery

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