工業用浄化熱回収

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Heat recovery for livestock and poultry houses: plate heat exchangers or rotary heat exchangers

The heat recovery products used in livestock and poultry houses mainly recover the heat energy in the exhaust through the principle of heat exchange and use it to preheat the fresh air entering the house. This not only ensures the minimum ventilation required in winter, but also reduces the heating energy consumption inside the building. This technology usually uses heat recovery ventilation equipment, such as plate heat exchangers or rotary heat exchangers, which can effectively capture the heat in the exhaust while ensuring the quality of the fresh air supply.

The main advantages include:

Reduce energy consumption: By recovering heat, the use of external heating equipment is reduced, significantly lowering energy costs.
Ensure air quality: Although heat recovery is carried out, it will not affect the circulation of air in the house, and the minimum ventilation rate can still be ensured to maintain the air quality in the livestock and poultry house.
Improving comfort: Preheating fresh air helps maintain a suitable temperature inside the house, reduce stress reactions in livestock and poultry, and improve production efficiency.
This technology is particularly important in cold winter regions as it can significantly reduce heating energy consumption while providing a healthy living environment for livestock and poultry.

Fresh air ventilator with waste heat recovery, primary efficiency, medium efficiency, high-efficiency air filters

Fresh air ventilator with waste heat recovery, primary efficiency, medium efficiency, high-efficiency air filters, customized production by the manufacturer

How a Double Rotor Setup Works

1. The enthalpy/adsorption rotor dehumidifies and cools the hot and humid outside air.

2. The cooling coil further dehumidifies the outside air until the requested humidity level is reached.

3. The sensible rotor reheats the outside air to the required supply air temperature.

4. At the same time, the exhaust air is cooled which increases the efficiency of the enthalpy/adsorption rotor.

double rotor concept

How does a rotary heat exchanger work?

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.

Principle of rotary heat recovery fresh air unit
air-to-air heat exchanger

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.

野菜、茶、豆類乾燥室、除湿・除湿空気熱交換器

野菜、茶、豆などの農産物の乾燥工程では、乾燥工程の品質と効率を確保するために、効率的な除湿および除湿システムが必要です。この工程では、ガス熱交換器が重要な役割を果たします。以下では、野菜、茶、豆の乾燥室の除湿および除湿システムを詳しく紹介します。

除湿プロセス:
乾燥室内の湿気と熱気は排気ファンによって排出され、空気熱交換器を通過する際に流入する乾燥空気と熱交換します。
排出された湿気や熱を含んだ空気は熱交換器を通過すると温度が下がり、水蒸気は凝縮して液体の水となって排出されます。
流入する乾燥空気は熱交換器によって予熱されて乾燥室に入り、乾燥効率が向上します。

アプリケーションシナリオ
野菜の乾燥：唐辛子、ニンジン、キャベツなど、温度と湿度をコントロールすることで、乾燥野菜の色と栄養が損なわれません。
茶葉の乾燥：緑茶、紅茶、ウーロン茶などは、適切な温度と湿度の管理により、お茶の香りと品質が保たれます。
豆類の乾燥：大豆、緑豆、小豆などの豆類は、熱風で均一に乾燥され、豆の乾燥度と保存品質が確保されます。

野菜、茶、豆類の乾燥室にガス空気熱交換器を適用することで、効率的な除湿と除湿機能により、乾燥プロセスのエネルギー効率と製品品質が向上しました。合理的な設計と使用により、エネルギー消費と運用コストを大幅に削減できるだけでなく、環境に優しく、現代の乾燥技術に欠かせないものとなっています。

高温溶接ステンレス鋼板熱交換器

高温溶接ステンレス鋼板熱交換器は、複数の薄いステンレス鋼板を積み重ねて無数のマイクロチャネルを形成することで、流体間の熱交換を実現する効率的な熱交換装置です。 このタイプの熱交換器は、コンパクトな構造、高い熱伝達効率、高温耐性、耐腐食性などの利点があり、特に高温条件下でのガス廃熱回収に適しています。 高温ガスは熱交換器の片側に入り、低温ガスは反対側に入ります。 2種類のガスが薄いステンレス鋼板のチャネルで熱を交換し、高温ガスは低温ガスに熱を伝達して廃熱回収を実現します。 工業炉、冶金産業、化学産業、焼却炉などで広く使用されています。 プレート熱交換器はガス廃熱回収に大きな利点があり、エネルギー利用効率を効果的に向上させ、生産コストを削減できます。 このタイプの熱交換器を選択して使用する場合、高温ガスの特性やプロセス要件などの要素を総合的に考慮し、適切なモデルと材料を選択する必要があります。

plate heat exchanger

排ガスのホワイトニングと脱ホワイトニングにBXBプレート熱交換器を使用

鉄鋼、コークス、化学工業、ボイラーの排ガスは、排出前に噴霧または湿式脱硫が行われることが多く、温度は45〜80℃まで下がります。このとき、排ガスは飽和湿式排ガスであり、排ガスには大量の水蒸気が含まれており、その中にはアブレーション塩、三酸化硫黄、ゲル状ダスト、微細ダストなど（すべてヘイズの重要な成分）が含まれています。
Smoke whitening refers to the removal of some moisture from the smoke before it is discharged into the atmosphere, in order to prevent the chimney from emitting white smoke and reduce its impact on the environment. Normally, smoke whitening involves first cooling and condensing the smoke, followed by heating it. The main component of the air flue gas whitening unit is the BXB plate heat exchanger. In the plate heat exchanger, ambient air is used to cool the flue gas, thereby precipitating water from the flue gas. Afterwards, the flue gas is reheated to increase its temperature, so that there will be no "white smoke" when the flue gas is discharged into the atmospheric environment.

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