산업 정화 열 회수

산업폐열 회수 및 정화 솔루션 종합 서비스 제공업체

카테고리 아카이브 산업정보

  • 집 /
  • 카테고리별로 보관 "업계정보"
    • ( 페이지2 ) ( 페이지2 )

산업용 환기 열 회수 시스템 소개

Industrial ventilation heat recovery systems are designed to improve energy efficiency in industrial facilities by recovering waste heat from exhaust air and transferring it to incoming fresh air. These systems reduce energy consumption, lower operating costs, and contribute to environmental sustainability by minimizing heat loss.

Key Components

  1. Heat Exchanger: The core component where heat transfer occurs. Common types include:
    • 판형 열교환기: Use metal plates to transfer heat between air streams.
    • Rotary Heat Exchangers: Use a rotating wheel to transfer heat and, in some cases, moisture.
    • Heat Pipes: Utilize sealed tubes with a working fluid for efficient heat transfer.
    • Run-Around Coils: Use a fluid loop to transfer heat between air streams.
  2. Ventilation System: Includes fans, ducts, and filters to manage airflow.
  3. Control System: Monitors and regulates temperature, airflow, and system performance to optimize efficiency.
  4. Bypass Mechanisms: Allow the system to bypass heat recovery during conditions where it’s unnecessary (e.g., summer cooling).

작동 원리

  • 배기 공기: Warm air from industrial processes (e.g., manufacturing, drying) is extracted.
  • 열전달: The heat exchanger captures thermal energy from the exhaust air and transfers it to the cooler incoming fresh air without mixing the two air streams.
  • Supply Air: The preheated fresh air is distributed into the facility, reducing the need for additional heating.
  • Energy Savings: By recovering 50-80% of waste heat (depending on the system), the demand on heating systems like boilers or furnaces is significantly reduced.

Types of Systems

  1. Air-to-Air Heat Recovery: Directly transfers heat between exhaust and supply air streams.
  2. Air-to-Water Heat Recovery: Transfers heat to a liquid medium (e.g., water) for use in heating systems or processes.
  3. Combined Systems: Integrate heat recovery with other processes, such as humidity control or cooling.

이익

  • 에너지 효율: Reduces energy consumption for heating, often by 20-50%.
  • Cost Savings: Lowers utility bills and operational costs.
  • 환경 영향: Decreases greenhouse gas emissions by reducing reliance on fossil fuels.
  • Improved Indoor Air Quality: Ensures proper ventilation while maintaining thermal comfort.
  • Compliance: Helps meet energy efficiency and environmental regulations.

응용 프로그램

  • Manufacturing plants (e.g., chemical, food processing, textiles)
  • Warehouses and distribution centers
  • 데이터 센터
  • Pharmaceutical and cleanroom facilities
  • Commercial buildings with high ventilation demands

도전 과제

  • 초기 비용: High upfront investment for installation.
  • 유지: Regular cleaning of heat exchangers and filters is required to maintain efficiency.
  • System Design: Must be tailored to specific industrial processes and climates.
  • Space Requirements: Large systems may need significant installation space.

Trends and Innovations

  • Integration with IoT for real-time monitoring and optimization.
  • Advanced materials for heat exchangers to improve efficiency and durability.
  • Hybrid systems combining heat recovery with renewable energy sources (e.g., solar or geothermal).
  • Modular designs for easier installation and scalability.

Industrial ventilation heat recovery systems are a critical solution for energy-intensive industries, offering a balance of economic and environmental benefits while ensuring efficient and sustainable operations.

공기 대 공기 열교환기는 어떻게 작동합니까?

공기 대 공기 열교환기는 두 개의 분리된 공기 흐름을 혼합하지 않고 열을 전달합니다. 일반적으로 알루미늄과 같은 열전도성 재질로 만들어진 일련의 얇은 판이나 튜브로 구성되며, 표면적을 최대화하도록 배열됩니다. 한 기류(예: 건물에서 나오는 따뜻한 배기 공기)는 한쪽으로 흐르고, 다른 기류(예: 차갑고 신선한 유입 공기)는 반대쪽으로 흐릅니다.

따뜻한 기류의 열은 전도성 물질을 통과하여 차가운 기류로 전달되어 기류를 데웁니다. 이 과정을 통해 손실될 에너지를 회수하여 냉난방 시스템의 효율을 향상시킵니다. 직교류 또는 대향류 열교환기와 같은 일부 설계는 공기를 특정 패턴으로 유도하여 열전달을 최적화합니다. 효율은 기류 속도, 온도차, 열교환기 설계 등의 요인에 따라 달라지며, 일반적으로 50~80%의 열을 회수합니다.

일부 모델(예: 엔탈피 교환기)에서는 수분 전달이 발생할 수 있는데, 이러한 모델은 특수 막을 사용하여 수증기를 열과 함께 이동시켜 습도 조절에 유용합니다. 이 시스템에는 공기를 순환시키는 팬이 필요하며, 유지 관리에는 막힘이나 오염을 방지하기 위한 청소가 포함됩니다.

industrial air to air heat exchanger | counterflow heat exchanger

산업용 공기-공기 열교환기 | 역류 열교환기

An industrial air-to-air heat exchanger transfers heat between two air streams without mixing them, improving energy efficiency in HVAC systems, industrial processes, or ventilation. A counterflow heat exchanger is a specific type where the two air streams flow in opposite directions, maximizing heat transfer efficiency due to a consistent temperature gradient across the exchange surface.

Key Features of Industrial Air-to-Air Counterflow Heat Exchangers:

  • Efficiency: Counterflow designs achieve higher thermal efficiency (often 70-90%) compared to crossflow or parallel-flow exchangers because the temperature difference between the hot and cold streams remains relatively constant.
  • Construction: Typically made of materials like aluminum, stainless steel, or polymers for durability and corrosion resistance. Plate or tube configurations are common.
  • 응용 프로그램: Used in industrial drying, waste heat recovery, data centers, and building ventilation to preheat or precool air.
  • 이익: Reduces energy costs, lowers carbon footprint, and maintains air quality by preventing cross-contamination.
  • 도전 과제: Higher pressure drops due to the counterflow design may require more fan power. Maintenance is needed to prevent fouling or clogging.

Example:

In a factory, a counterflow heat exchanger might recover heat from hot exhaust air (e.g., 80°C) to preheat incoming fresh air (e.g., from 10°C to 60°C), saving significant heating energy.

industrial air to air heat exchanger | counterflow heat exchanger

산업용 공기-공기 열교환기 | 역류 열교환기

열교환기는 습기를 제거합니까?

일반적인 공기-공기 열교환기는 주로 두 기류 사이에서 열을 전달하며, 습기를 직접 제거하지는 않습니다. 기류는 분리되어 있기 때문에, 한 기류의 습기(습기)는 일반적으로 해당 기류 내에 머물러 있습니다. 그러나 열교환기의 유형에 따라 미묘한 차이가 있습니다.

  1. 현열교환기: 이러한 장치(예: 대부분의 판형 또는 열파이프형 열교환기)는 열만 전달하고 수분은 전달하지 않습니다. 유입 및 유출 공기의 습도는 변하지 않지만, 온도 변화로 인해 상대 습도가 약간 변동할 수 있습니다. (따뜻한 공기는 더 많은 수분을 함유할 수 있으므로 유입 공기를 가열하면 상대 습도가 낮아질 수 있습니다.)
  2. 엔탈피(총 에너지) 교환기: 회전식 휠이나 특정 멤브레인 기반 열교환기와 같은 일부 첨단 설계는 열과 습기를 모두 전달할 수 있습니다. 이러한 환기 장치를 흡습성 또는 엔탈피 회수 환기 장치(ERV)라고 합니다. 코어 소재 또는 휠은 습한 기류(예: 따뜻하고 습한 실내 공기)에서 습기를 흡수하여 건조한 기류(예: 차갑고 건조한 실외 공기)로 전달하여 습도를 어느 정도 효과적으로 관리합니다.
  3. 응축 효과: 특정 조건에서 열교환기가 습한 공기를 이슬점 이하로 냉각하면 열교환기 표면에 결로가 발생하여 해당 기류의 수분이 일부 제거될 수 있습니다. 이는 부수적인 현상이며 주요 기능이 아니며, 배수 시스템이 필요합니다.

따라서 일반적인 열교환기는 수분 전달용으로 설계된 엔탈피형 ERV(열교환기)가 아니거나 결로가 발생하지 않는 한 습기를 제거하지 못합니다. 습도 조절이 목표라면 ERV나 별도의 제습 시스템이 필요합니다.

열 회수 휠 공기 처리 장치

에이 heat recovery wheel in an air handling unit (AHU) is a device that improves energy efficiency by transferring heat and sometimes moisture between incoming fresh air and outgoing exhaust air. Here's a concise explanation:

작동 원리

  • 구조: The heat recovery wheel, also called a rotary heat exchanger, thermal wheel, or enthalpy wheel, is a rotating cylindrical matrix typically made of aluminum or a polymer, often coated with a desiccant (e.g., silica gel) for moisture transfer. It has a honeycomb structure to maximize surface area.

  • Operation: Positioned between the supply and exhaust air streams in an AHU, the wheel rotates slowly (10-20 RPM). As it turns, it captures heat from the warmer air stream (e.g., exhaust air in winter) and transfers it to the cooler air stream (e.g., incoming fresh air). In summer, it can pre-cool incoming air.

  • 유형:

    • Sensible Heat Wheel: Transfers only heat, affecting air temperature without changing moisture content.

    • Enthalpy Wheel: Transfers both heat (sensible) and moisture (latent), using a desiccant to adsorb and release water vapor based on humidity differences. This is more effective for total energy recovery.

  • Efficiency: Sensible heat recovery can achieve up to 85% efficiency, while enthalpy wheels may add 10-15% more by recovering latent heat.

이익

  • Energy Savings: Pre-conditions incoming air, reducing heating or cooling loads, especially in climates with large indoor-outdoor temperature differences.

  • 개선된 대기 질: Supplies fresh air while recovering energy from exhaust air, maintaining indoor comfort.

  • 응용 프로그램: Common in commercial buildings, hospitals, schools, and gyms where high ventilation rates are needed.

Key Considerations

  • 유지: Regular cleaning is critical to prevent dirt or clogs from reducing efficiency. Filters should be replaced, and the wheel inspected for buildup.

  • Leakage: Slight cross-contamination between air streams is possible (Exhaust Air Transit Ratio <1% in well-maintained systems). Overpressure on the supply side minimizes this risk.

  • Frost Prevention: In cold climates, wheel frosting can occur. Systems use variable speed control (via VFD), preheating, or stop/jogging to prevent this.

  • Bypass Dampers: Allow the wheel to be bypassed when heat recovery isn’t needed (e.g., during mild weather), saving fan energy and extending wheel life.

Example

In a hospital AHU, a heat recovery wheel might pre-heat incoming winter air (e.g., from 0°C to 15°C) using exhaust air (e.g., 24°C), reducing the heating system’s workload. In summer, it could pre-cool incoming air (e.g., from 35°C to 25°C) using cooler exhaust air.

Limitations

  • Space: Wheels are large, often the biggest AHU component, requiring careful installation planning.

  • Cross-Contamination: Not ideal for applications requiring complete air stream separation (e.g., labs), though modern designs minimize this.

  • Cost: Initial cost is high, but energy savings often justify it in high-ventilation settings.

교차흐름과 역류 열교환기의 차이점은 무엇입니까?

The main difference between crossflow and counterflow heat exchangers lies in the direction in which the two fluids flow relative to each other.

  1. 역류 열교환기:

    • In a counterflow heat exchanger, the two fluids flow in opposite directions. This arrangement maximizes the temperature gradient between the fluids, which improves heat transfer efficiency.

    • Benefit: The counterflow design is typically more efficient because the temperature difference between the fluids is maintained across the entire length of the heat exchanger. This makes it ideal for applications where maximizing heat transfer is crucial.

  2. Crossflow Heat Exchanger:

    • In a crossflow heat exchanger, the two fluids flow perpendicular (at an angle) to each other. One fluid typically flows in a single direction, while the other flows in a direction that crosses the first fluid’s path.

    • Benefit: While the crossflow arrangement is not as thermally efficient as counterflow, it can be useful when space or design constraints exist. It is often used in situations where the fluids must flow in fixed paths, such as in air-cooled heat exchangers or situations with phase changes (e.g., condensation or evaporation).

Key Differences:

  • Flow Direction: Counterflow = opposite directions; Crossflow = perpendicular directions.

  • Efficiency: Counterflow tends to have higher heat transfer efficiency due to the more consistent temperature gradient between fluids.

  • 응용 프로그램: Crossflow is often used where counterflow isn't feasible due to design limitations or space constraints.

Radiators for Sodium-Ion Battery Energy Storage Containers

Radiators for sodium-ion battery energy storage containers are critical for thermal management, ensuring battery performance, safety, and longevity. Sodium-ion batteries generate heat during operation, particularly in high-power or rapid charge-discharge cycles, requiring efficient cooling systems tailored to containerized storage setups. Below is a concise overview, reduced by 50% from the previous response and avoiding citations, focusing on radiators for sodium-ion battery applications.

Role of Radiators

  • Thermal Regulation: Maintain optimal battery temperatures (-20°C to 60°C) to prevent overheating or thermal runaway.

  • Lifespan Extension: Stable temperatures reduce material degradation, enhancing battery life.

  • Efficiency Boost: Consistent temperatures improve charge-discharge efficiency.

Key Features

  • Wide Temperature Range: Supports sodium-ion batteries’ ability to operate from -30°C to 60°C, reducing complex cooling needs.

  • Safety Focus: Lowers risk of thermal issues, leveraging sodium-ion’s inherent stability.

  • Cost-Effective: Uses affordable materials (e.g., aluminum) to align with sodium-ion’s low-cost advantage.

  • Modular Design: Fits containerized systems for easy scaling and maintenance.

응용 프로그램

  • Grid Storage: Large containers for renewable energy integration.

  • Electric Vehicles: Compact cooling for battery packs.

  • Industrial Backup: Reliable cooling for data centers or factories.

도전 과제

  • Lower Energy Density: Larger battery volumes require expansive radiator coverage.

  • Cost Balance: Must remain economical to match sodium-ion’s affordability.

  • Environmental Durability: Needs resistance to corrosion in harsh climates.

Future Directions

  • Advanced Materials: Explore composites or graphene for better heat transfer.

  • Hybrid Systems: Combine air and liquid cooling for efficiency.

  • Smart Controls: Integrate sensors for adaptive cooling based on battery load.

심폐소생술에 사용되는 교차흐름 열교환기

A cross-flow heat exchanger in a cardiopulmonary context, such as during cardiopulmonary bypass (CPB) procedures, is a critical component used to regulate a patient’s blood temperature. These devices are commonly integrated into heart-lung machines to warm or cool blood as it’s circulated outside the body during open-heart surgeries or other procedures requiring temporary heart and lung support.

작동 원리

In a cross-flow heat exchanger, two fluids—typically blood and a heat transfer medium (like water)—flow perpendicular to each other, separated by a solid surface (e.g., metal or polymer plates/tubes) that facilitates heat transfer without mixing the fluids. The design maximizes heat exchange efficiency while maintaining biocompatibility and minimizing blood trauma.

  • Blood Flow Path: Oxygenated blood from the heart-lung machine flows through one set of channels or tubes.

  • Water Flow Path: Temperature-controlled water flows through an adjacent set of channels in a perpendicular direction, either warming or cooling the blood depending on the clinical need (e.g., inducing hypothermia or rewarming).

  • 열전달: The temperature gradient between the blood and water drives heat exchange through the conductive surface. The cross-flow arrangement ensures a high heat transfer rate due to the constant temperature difference across the exchanger.

Key Features

  1. Biocompatibility: Materials (e.g., stainless steel, aluminum, or medical-grade polymers) are chosen to prevent clotting, hemolysis, or immune reactions.

  2. Compact Design: Cross-flow exchangers are space-efficient, crucial for integration into CPB circuits.

  3. Efficiency: The perpendicular flow maximizes the temperature gradient, improving heat transfer compared to parallel-flow designs.

  4. Sterility: The system is sealed to prevent contamination, with disposable components often used for single-patient procedures.

  5. Control: Paired with a heater-cooler unit, the exchanger maintains precise blood temperature (e.g., 28–32°C for hypothermia, 36–37°C for normothermia).

Applications in Cardiopulmonary Procedures

  • Hypothermia Induction: During CPB, the blood is cooled to reduce metabolic demand, protecting organs like the brain and heart during reduced circulation.

  • Rewarming: After surgery, the blood is gradually warmed to restore normal body temperature without causing thermal stress.

  • Temperature Regulation: Maintains stable blood temperature in extracorporeal membrane oxygenation (ECMO) or other long-term circulatory support systems.

Design Considerations

  • Surface Area: Larger surface areas improve heat transfer but must balance with minimizing priming volume (the amount of fluid needed to fill the circuit).

  • Flow Rates: Blood flow must be turbulent enough for efficient heat transfer but not so high as to damage red blood cells.

  • Pressure Drop: The design minimizes resistance to blood flow to avoid excessive pump pressure.

  • Infection Control: Stagnant water in heater-cooler units can harbor bacteria (e.g., Mycobacterium chimaera), necessitating strict maintenance protocols.

Example

A typical cross-flow heat exchanger in a CPB circuit might consist of a bundle of thin-walled tubes through which blood flows, surrounded by a water jacket where temperature-controlled water circulates in a perpendicular direction. The exchanger is connected to a heater-cooler unit that adjusts water temperature based on real-time feedback from the patient’s core temperature.

Challenges and Risks

  • Hemolysis: Excessive shear stress from turbulent flow can damage blood cells.

  • Thrombogenicity: Surface interactions may trigger clot formation, requiring anticoagulation (e.g., heparin).

  • Air Embolism: Improper priming can introduce air bubbles, a serious risk during bypass.

  • Infections: Contaminated water in heater-cooler units has been linked to rare but severe infections.

Rotary heat exchanger manufacturers

There are several well-known rotary heat exchanger manufacturers that provide high-efficiency solutions for HVAC, industrial, and energy recovery applications. Below are some leading companies:

1. Global Rotary Heat Exchanger Manufacturers

✅ Heatex (Sweden) – Specializes in air-to-air rotary and plate heat exchangers for HVAC and industrial applications.
✅ Klingenburg GmbH (Germany) – Offers rotary heat exchangers with advanced coatings for high humidity and corrosive environments.
✅ Seibu Giken (Japan) – Known for its desiccant rotors and energy recovery wheels, ideal for pharmaceutical and cleanroom applications.
✅ FläktGroup (Germany) – Supplies energy-efficient rotary heat exchangers for large commercial and industrial buildings.
✅ REC Air Handling (Netherlands) – Provides customizable rotary heat exchangers for HVAC and industrial heat recovery.

2. China-Based Rotary Heat Exchanger Manufacturers

✅ Hoval – Specializes in plate and rotary heat exchangers for HVAC and industrial processes.
✅ Holtop – Manufactures energy recovery ventilation (ERV) systems with rotary heat exchangers.
✅ Zibo Qiyu – Offers aluminum-based rotary heat exchangers for air handling systems.
✅ Shanghai Shenglin – Produces rotary wheels for air-to-air heat recovery applications.

3. Key Features to Consider

✔ Material – Aluminum, coated surfaces (for corrosion resistance), or desiccant-coated wheels (for humidity control).
✔ Efficiency – High heat recovery efficiency (up to 85%) for energy savings.
✔ Application – Industrial HVAC, cleanrooms, pharmaceutical, or general ventilation.
✔ Customization – Size, coatings, and integration with existing systems.

가마 폐열 회수 및 재사용 시스템 - 가스 스테인리스 스틸 교차 흐름 열교환기 계획

The kiln waste heat recovery and reuse system aims to fully utilize the high-temperature heat in the kiln exhaust gas, and achieve a win-win situation of energy conservation and environmental protection through gas stainless steel cross flow heat exchangers. The core of this solution lies in the use of a stainless steel cross flow heat exchanger, which efficiently exchanges heat between high-temperature exhaust gas and cold air, generating hot air that can be reused.

Working principle: The exhaust gas and cold air flow in a cross flow manner inside the heat exchanger and transfer heat through the stainless steel plate wall. After releasing heat from exhaust gas, it is discharged. Cold air absorbs the heat and heats up into hot air, which is suitable for scenarios such as assisting combustion, preheating materials, or heating.

장점:

Efficient heat transfer: The cross flow design ensures a heat transfer efficiency of 60% -80%.
Strong durability: Stainless steel material is resistant to high temperatures and corrosion, and can adapt to complex exhaust environments.
Flexible application: Hot air can be directly fed back to the kiln or used for other processes, with significant energy savings.
System process: Kiln exhaust gas → Pre treatment (such as dust removal) → Stainless steel heat exchanger → Hot air output → Secondary utilization.

This solution is simple and reliable, with a short investment return cycle, making it an ideal choice for kiln waste heat recovery, helping enterprises reduce energy consumption and improve efficiency.

최근 기사

최근 댓글

보여줄 댓글 없음.

분류하다

에 의해 구동 www.en159.com 문의처 kuns913@gmail.com

| 주제: 약속 블루 작성자: Webriti

도움이 필요하신가요?
ko_KR한국어
en_USEnglish de_DEDeutsch fr_BEFrançais de Belgique ru_RUРусский ja日本語 pt_BRPortuguês do Brasil hi_INहिन्दी es_CLEspañol de Chile pa_INਪੰਜਾਬੀ ko_KR한국어