shaohai - Industrial purification heat recovery

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海藻乾燥用空気対空気熱回収システム

Efficient Dehumidification, Ventilation and Waste Heat Recovery

Seaweed drying processes require stable temperature control, high air circulation, and effective moisture removal to ensure product quality and drying efficiency. During continuous operation, large volumes of warm and humid exhaust air are discharged from the drying chamber, carrying a significant amount of recoverable sensible heat. Without recovery, this energy is wasted, resulting in high operating costs and increased drying time.

The Air-to-Air Heat Recovery System for seaweed drying is specifically designed to recover waste heat from exhaust air while maintaining effective dehumidification and ventilation. The system is built around a plate-type heat exchanger core, allowing high-temperature, high-humidity exhaust air to transfer heat to incoming fresh air through fully separated channels. This indirect heat exchange process prevents air mixing, ensuring clean operation and eliminating the risk of moisture or odor backflow.

By preheating fresh air before it enters the drying chamber, the system significantly reduces the heating load of electric heaters, hot air furnaces, or steam systems. At the same time, the exhaust air temperature is lowered, and excess moisture is removed through controlled condensation, improving overall dehumidification performance and stabilizing the drying process.

The plate heat exchanger core features a compact structure, high heat transfer efficiency, and low air resistance, making it suitable for long-term continuous operation in high-humidity environments. The system is equipped with a condensate drainage design to handle moisture effectively and maintain stable performance.

With low operating energy consumption and a modular configuration, the heat recovery system can be easily integrated into both new seaweed drying lines and existing equipment upgrades. By recovering waste heat that would otherwise be lost, the system helps reduce energy consumption, shorten drying cycles, and improve production efficiency, providing a reliable and energy-saving solution for modern seaweed processing facilities.

排気ガス熱回収システム

In many industrial applications such as drying, pelletizing, textile finishing, food processing, and ventilation systems, a large amount of high-temperature exhaust gas is discharged continuously during operation. This exhaust gas contains valuable sensible heat, which is often released directly into the atmosphere, resulting in significant energy waste and high operating costs.

The Exhaust Gas Heat Recovery System is designed to capture and reuse this wasted heat, improving overall energy efficiency and reducing fuel and electricity consumption.

The system is built around a plate-type air-to-air heat exchanger core. High-temperature exhaust gas and fresh intake air flow through separate and fully isolated channels within the heat exchanger. Heat is transferred through the plates without any mixing of air streams, ensuring clean operation and preventing odor, moisture, or contaminant carryover.

Recovered heat is used to preheat fresh air supplied back into the production process, such as drying chambers, pellet coolers, or make-up air systems. By increasing the inlet air temperature, the load on heaters, burners, or steam systems is significantly reduced, leading to lower energy consumption and operating costs.

The plate heat exchanger core features a compact structure, large heat transfer surface, and low air resistance, making it suitable for continuous industrial operation. The system also helps reduce exhaust gas temperature and humidity, easing the burden on downstream cooling, deodorization, or dehumidification equipment.

One of the key advantages of the Exhaust Gas Heat Recovery System is its low operating cost. No additional heating or cooling energy is required, and power consumption is mainly limited to fans. The modular design allows flexible configuration according to air volume, temperature, and process requirements, making the system suitable for both new installations and retrofit projects.

By recovering waste heat that would otherwise be lost, the Exhaust Gas Heat Recovery System provides a practical solution for energy saving, cost reduction, and sustainable industrial operation, while maintaining stable process performance and improved working environments.

ティーツリー茸・椎茸乾燥室向け空気対空気熱交換システム

茶樹きのこや椎茸の乾燥工程では、水分を除去するために安定した温風の供給が求められ、同時に高温多湿の排気が大量に連続的に排出されます。従来の乾燥システムでは、この排気は直接大気中に放出され、新鮮な冷気を再加熱する必要があるため、エネルギー効率が低く、運転コストが高くなります。

排気と給気の間に廃熱回収型空気対空気熱交換器を設置することで、排出される熱風に含まれる熱エネルギーを効果的に回収し、流入する新鮮な空気の予熱に再利用することができます。これにより、乾燥システム内で高温の熱エネルギーを循環させることができます。熱交換中、給気と排気は完全に分離されているため、乾燥室への水分、臭気、汚染物質の戻りを防ぎ、製品品質の安定化を実現します。

高温運転条件下では、空気対空気熱交換器によって吸気温度が大幅に上昇し、電気ヒーター、バイオマスバーナー、ガス燃焼システムのエネルギー需要が削減されます。特に、大規模乾燥や長時間乾燥の場合、省エネ効果が顕著です。

廃熱回収システムは、コンパクトな構造、柔軟な設置、そして既存の乾燥室への容易な統合を特徴としており、従来のプロセスを変更することなく容易に統合できます。メンテナンスの必要性が少なく、信頼性の高い運転を実現し、エネルギー消費量の削減、熱損失の最小化、そして全体的な熱効率の向上に貢献します。キノコ乾燥施設の省エネ改修に最適なソリューションです。

耐腐食性空気熱交換コアおよびヒートポンプ乾燥システム用除湿熱回収装置

In heat pump drying applications, especially for seafood processing, chemical sludge, and other salt-laden materials, the drying and baking environment places extremely high demands on air heat exchange equipment. Exhaust air often contains large amounts of water vapor, salt mist, and corrosive substances. Conventional aluminum heat exchangers are prone to corrosion, perforation, rapid efficiency loss, and frequent failures. For these harsh conditions, corrosion-resistant air heat exchange cores combined with dehumidification and exhaust heat recovery equipment are essential to ensure long-term stable operation of heat pump drying systems.

1. Typical Operating Conditions

Drying exhaust air from seafood processing and chemical sludge treatment usually has the following characteristics:

High humidity with large volumes of condensate
Presence of salt mist or chemical corrosive components
Continuous operation under medium to high temperatures
Long operating cycles with limited downtime for maintenance
High reliability requirements for heat pump systems

These conditions require heat exchange cores with excellent resistance to corrosion, condensation, and thermal stress.

2. Key Design Features of Corrosion-Resistant Air Heat Exchange Cores

1. Corrosion-Resistant Materials

The heat exchange core is manufactured using stainless-steel foil (304 / 316L) or other high-corrosion-resistant composite materials, effectively resisting salt mist, chloride ions, and chemical corrosion while significantly extending service life.

2. Air-to-Air Isolated Heat Exchange Structure

An air-to-air heat exchange design ensures complete separation between exhaust air and make-up air, preventing salt mist and corrosive components from entering the heat pump system.

3. Low-Resistance, Large-Channel Design

Wide airflow passages and low pressure drop support high-humidity, large-airflow drying chambers, minimizing fouling and blockage.

4. Efficient Condensate Drainage and Anti-Liquid Accumulation Design

Vertical airflow configuration combined with a bottom condensate collection tray enables rapid drainage, preventing liquid accumulation and corrosion.

3. Integrated Dehumidification, Exhaust Air Discharge, and Heat Recovery Principle

Within a heat pump drying system, the corrosion-resistant air heat exchange core works in coordination with the dehumidification and exhaust heat recovery module:

High-humidity hot air from the drying chamber enters the dehumidification heat exchange section.
Water vapor condenses on the surface of the heat exchange core and is discharged.
Latent and sensible heat released during condensation is recovered.
Recovered heat is used to preheat make-up air or recirculated air.
Reduced air humidity improves drying efficiency.
Heat pump load decreases, enhancing overall system energy efficiency.

This integrated process achieves both moisture removal and energy recovery simultaneously.

4. Application Areas

This type of corrosion-resistant air heat exchange core and heat recovery equipment is particularly suitable for:

Seafood drying and processing (fish, shrimp, seaweed)
Salt-containing agricultural and aquatic products
Chemical sludge and salt-bearing sludge drying
Heat pump drying systems for high-salinity waste materials
Drying chambers in coastal or high salt-mist environments

5. System Benefits

Applying corrosion-resistant air heat exchange cores under harsh operating conditions delivers:

Stable and reliable long-term operation
Effective dehumidification with shorter drying cycles
Recovery of exhaust heat to reduce heat pump energy consumption
Significantly reduced corrosion risk and maintenance costs
Extended service life and improved system reliability

6. Conclusion

In high-salinity, high-humidity, and corrosive drying environments such as seafood processing and chemical sludge treatment, conventional heat exchange equipment cannot ensure stable operation. The use of dedicated corrosion-resistant air heat exchange cores combined with dehumidification and exhaust heat recovery equipment provides a reliable, energy-efficient solution for heat pump drying systems. It represents a key enabling technology for safe, economical, and sustainable operation in complex drying conditions.

ステンレススチール製空気対空気プレート熱交換器を使用した繊維テンター機の排気熱回収改造

繊維テンター機は、オイルミスト、繊維粉塵、添加剤、高湿度を含む高温の排気ガスを排出します。これらの排気ガスは、腐食、汚れ、システム動作の不安定化につながることがよくあります。これらの課題に対処するために、 完全ステンレス鋼製空気対空気プレート熱交換器 は、垂直排気管、平板流路構造、垂直スプレー洗浄、底部凝縮液／スラッジ沈殿槽を統合した排熱回収システムです。これらの最適化された設計により、繊維捺染・染色業界に特化した信頼性の高い排熱回収を実現します。

1. アプリケーションの背景

テンター機排気の典型的な特徴:
• 温度 120～180℃
• オイルミスト、繊維粒子、化学添加物が含まれています
• 水分含有量が高いため、結露や腐食の危険性があります
• 従来の熱交換器では汚れや詰まりが発生しやすい

アルミニウム交換機はこのような過酷な条件には対応できません。 特殊構造を備えたフルステンレススチール設計 長期にわたる安定したパフォーマンスを確保するために必要です。

2. 主な構造上の特徴

1. フルステンレススチール製熱伝達プレート（304 / 316L）

• 酸性凝縮液および染色化学薬品に対する優れた耐性
• 高温下でも高い熱安定性と機械的安定性
• 変形せずに高周波洗浄をサポート
• アルミ板に比べて耐用年数がかなり長い

2. フラットな排気通路設計

• 滑らかで広い流路が繊維やオイルミストの蓄積を防止
• メンテナンス間隔の延長
• 圧力損失が低いため、テンターマシンの大風量に最適です。

3. 垂直排気流（L字型流路）

• 排気は垂直下向きまたは上から下向きに流れる
• 重力は油滴や粒子の除去を助けます
• プレート表面の汚れを減らし、洗浄サイクルを延長します
• スプレー洗浄時の排水効率を向上

4. 垂直スプレー洗浄システム

• 定期的なスプレー洗浄により、油、繊維の粉塵、化学残留物を除去します
• 汚れを防ぎ、熱伝達性能を回復します
• 許可する オンラインクリーニング 熱交換器を分解せずに

5. 底部排水・汚泥沈殿槽

• プレートから洗い流された油汚染水と繊維粒子を回収します
• 適切な排水と廃棄を容易にします
• 熱交換器の再汚染を防止
• 上部熱交換部から独立した、清掃しやすい構造

3. 動作原理

高温の排気ガスが垂直のフラットチャネルに入ります。
熱はステンレス鋼板を通して外気側に伝達されます。
水分が凝縮し、油や汚れを沈殿タンクへと運びます。
新鮮な空気は廃熱を吸収し、テンター機または作業場の換気で再利用するために予熱されます。
冷却された排気は、熱負荷が軽減された状態で下流の処理（RTO、炭素吸着、ファン）に排出されます。
スプレーシステムは排気チャネルを定期的に洗浄し、安定した効率を維持します。

相互汚染を避けるために、空気の流れは完全に分離されています。

4. 技術的な利点

1. 繊維ステンター排気用に特別に設計

高温、腐食、油煙、繊維粉塵に耐性があり、染色および仕上げ業界における長年の課題を解決します。

2. 大幅なエネルギー節約

排気熱を回収して新鮮な空気を予熱することで、ガス、蒸気、電気暖房の消費量を削減できます。 20–35%.

3. 防汚性と安定した動作

フラットチャネル + 垂直気流 + スプレー洗浄により、テンター排気システムによくある詰まりを防止します。

4. 下流の機器を保護する

排気温度が低くなると、RTO、ダクト、ファンの負荷が軽減され、耐用年数と信頼性が向上します。

5. メンテナンスの手間がかからない

定期的なスプレー洗浄と簡単なスラッジ除去で十分であり、頻繁な分解は必要ありません。

5. 代表的な用途

• 繊維熱セットテンター機
• 延伸、乾燥、熱固定の生産ライン
• オイルミストと繊維ダストを含む高温排気
• VOC処理システムの前の予冷とエネルギー回収

花とハーブの乾燥のためのBXB省エネ熱交換器

High-Efficiency Waste Heat Recovery · Lower Drying Energy Consumption · Improve Product Quality

During the drying process of flowers, petals, herbs, and aromatic plants, a large volume of hot and humid air is discharged. This exhaust contains substantial reusable heat. The BXB energy-saving heat exchanger captures the sensible heat and part of the latent heat from the exhaust air and uses it to preheat fresh air or return air, significantly reducing energy waste.

動作原理

Hot exhaust enters the heat exchanger after leaving the dryer.
Heat is transferred to fresh air, raising the fresh air temperature quickly.
Exhaust air temperature and humidity drop after heat exchange, improving discharge conditions.
Preheated fresh air returns to the dryer, reducing heater load and energy consumption.

This process is especially suitable for flower and herb drying, where stable temperature control is crucial for preserving color, fragrance, and quality.

Key Advantages

省エネ
The BXB structure provides large heat exchange surface and low air resistance, recovering a substantial portion of waste heat. Energy consumption can typically be reduced by twenty to forty percent.

Stable Drying Quality
Preheated air provides a more stable inlet temperature, reducing fluctuations and helping maintain natural color, aroma, and shape of dried flowers and herbs.

Improved Exhaust Conditions
After cooling, the exhaust becomes less humid and easier to discharge, reducing heat stress and moisture impact on the equipment.

Optimized for Low-Temperature Drying
Flower and herb drying requires gentle and precise temperature control. The BXB exchanger improves overall stability and enhances process controllability.

Flexible Installation
Suitable for both new drying lines and retrofit projects without altering the original drying process.

Application Fields

Flower drying
Rose petals, chamomile, lavender, jasmine, honeysuckle, and other delicate floral materials.

Herbal drying
Leaf-type or flower-type medicinal herbs requiring low-temperature drying to preserve active components.

Aromatic plant drying
Materials that need controlled temperature to retain fragrance.

Applicable to agricultural bases, herb processing factories, flower drying workshops, and food processing plants.

PP（ポリプロピレン）ポリマープラスチック熱交換器の利点

PP (ポリプロピレン) 熱交換器は、優れた耐腐食性、軽量性、エネルギー効率を備えており、酸アルカリ排気、化学オフガス、および煙道ガス脱白システムに最適です。

主な利点:

高い耐腐食性 – 錆びたり酸化したりすることなく、酸、アルカリ、塩、アンモニアに耐えます。
軽量で取り付け簡単 – 金属ユニットの約 5 分の 1 の重さで、メンテナンスが簡単です。
防汚表面 – 滑らかな仕上げにより、スケールやほこりの蓄積を防ぎます。
低エネルギー消費と長寿命 – 最適化された設計により高い効率と低い圧力損失が保証され、8 年以上持続します。
環境に優しくリサイクル可能 – 無毒でグリーンエネルギー基準に準拠しています。

酸性ガス熱回収、化学排気凝縮、空気予熱、排ガス脱白システムに広く使用されています。

鉱山の排熱回収による暖房費の節約

鉱山排気廃熱回収システムで廃棄物を富に変えましょう！この革新的なソリューションは、鉱山の換気から最大60%の熱を回収し、地上施設に費用対効果の高い暖房を提供します。