| Customization: | Available |
|---|---|
| After-sales Service: | Yes |
| Warranty: | 1 Year |
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MVR, which stands for mechanical vapor recompression, is a groundbreaking energy-saving technology designed to drastically reduce the need for external energy. This is achieved by ingeniously reutilizing the secondary steam energy that it generates. The core principle involves compressing the secondary steam produced by the evaporator using a high-energy efficiency steam compressor. This process masterfully converts electrical energy into thermal energy, which raises the pressure and temperature of the secondary steam. The elevated temperature allows the secondary steam to return to the evaporator, where it efficiently heats the materials, generating evaporation. This not only facilitates the recycling of the latent heat of vaporization of secondary steam but also significantly enhances overall energy efficiency.
Our DM series Single-stage geared steam compressor is a marvel of engineering, encompassing essential components such as a robust compressor body, precision coupling, reliable gearbox, sophisticated lubrication system, powerful motor, advanced electric instrumentation, and a state-of-the-art anti-surge control system. Notably, it boasts a compact structure that simplifies maintenance, ensuring seamless operation and enduring performance.
3.3.1 The compressor base is integrally placed on the foundation, put wedge-shaped shim under the base (used to adjust the unit level),
place two wedge-shaped irons alternately, after leveling the unit, and spot weld the wedge-shaped irons for 4~5 points. The wedge shall be
manufactured and installed by the user according to the actual situation, and the contact surface shall be finished (even contact of inclined
plane, and the bearing capacity of wedge iron shall not be greater than 40Kg/cm2).
3.3.2 Use a level to find the level. The leveling requirements of the unit: the axial level of the unit is 0.05/1000mm, and the horizontal
level of the unit is 0.10/1000mm.
3.3.3 Coupling is centered. Before starting alignment, confirm the following requirements:
1) Turn off the main power supply;
2) Remove the coupling shield;
3) Remove the diaphragm coupling intermediate section;
4) Check the flatness of the motor installation plane to ensure that there are no stolen goods, dirt and attachments;
5) The motor bolt hole should be larger than the bolt size, so that the bolt can be loosened to adjust the motor;
6) Prepare enough stainless steel gaskets to cover the foot of the motor, the gaskets should not have attachments and should be flat enough. You cannot use long and thin gaskets to insert between the motor and the base for adjustment;
7) Use a dial indicator or a laser alignment meter with an accuracy of 0.01mm (prepared by the customer himself);
8) Prepare the bracket for supporting the dial indicator as shown in the figure below;
9) The motor wheel hub mounting bracket is used for mounting a dial indicator on the edge of the wheel hub, and placing a dial indicator probe on the outer edge of the compressor wheel hub;
10) By adjusting the adjustment bolts around the motor feet, the compressor and the motor center line are basically on the same line (or according to the corresponding instructions), and the maximum deviation of the outer circle is 0.05mm (the motor shaft center line should be higher than the compressor low-speed shaft center line), coupling end face 0.03~0.05mm;
11) Finally, tighten the motor foot bolts, and review the outer circle runout and end face runout of the coupling;
12) Install the coupling intermediate section after the motor idling test.
3.3.4 After adjusting the "levelness" and alignment of the casing, tighten the anchor bolts. After the mechanical operation (or trial operation), loosen the bolts and tighten them again.
3.3.5 The impeller is a high speed rotating component, and any solid or liquid entering impeller will cause irreversible damage to compressor. Therefore, it is necessary to ensure that the inlet and outlet pipelines connected with compressor are clean and meet the requirements of steam corrosion grade of the system. Pipelines that do not meet this condition must be rectified. It is suggested to add solid liquid separation equipment (gas scrubber or sedimentation tee) before the straight pipe at the compressor inlet.
3.3.6 Install compressor inlet and outlet pipes. Import and export pipelines shall be installed with relevant pipeline accessories according to PI diagram. The pipeline connected to the compressor shall be supported by another bracket, and its weight shall not be supported by the compressor body.
3.3.7 Once the main fan and its supportive equipment have been meticulously installed and the concrete has reached full solidification, you are ready to initiate the compressor operation test. This ensures that all elements are perfectly set for optimal performance.
3.3.8 For seamless operation, the electric control cabinet for the compressor must be positioned no more than 5 meters away from the compressor itself. To ensure a neat and secure connection, the wiring should be routed through a threading pipe that is carefully placed underground. Once the electric control cabinet is perfectly positioned, make sure to connect the wiring terminals within the cabinet to the lines at the remote DCS, ensuring a cohesive and efficient setup.
Nantong Dart-Rich Fan Co., LTD. (formerly the State-Owned Nantong Fan Factory), proudly established in 1966, embarked on a transformative journey in June 2019 through an equity structure reform. This strategic change enabled the company to evolve into a partnership enterprise. Embracing the momentum of rapid growth, Dart-Rich (Hunan) Fan Co., Ltd. was founded in December 2020 to further expand our horizons. In 2004, we embraced cutting-edge German technology, propelling us to notable advancements in product stability, reliability, high efficiency, low noise, wear resistance, and temperature resilience. As the principal architect of the standard for integral geared assembly centrifugal steam compressors, we stand at the forefront of innovation.
Dart-Rich boasts esteemed certifications including ISO9001, ISO14001, and ISO45001. Our product portfolio—encompassing steam compressors, fans, and blowers—serves diverse sectors such as metallurgy, chemical, electric power, environmental conservation, construction materials, light industry, and emerging energy fields. Beyond products, we offer cutting-edge system optimization and maintenance services, significantly contributing to energy-saving wind system renovations.
Innovation is at our core. Dart-Rich continuously advances through management, mechanism, culture, and technology innovations. Our ongoing development in digital intelligence and 'three wisdom' initiatives reflect our deep market insights. By promoting organizational expansion and enhancing our service capabilities, we achieve swift and sustainable growth.
Guided by our enduring values of 'Honest and Trustworthy; Dedicated and Professional; Altruism and Mutualism', Dart-Rich is committed to amplifying enterprise value and maximizing benefits for our customers. We champion shared responsibility, creation, and collaboration, aspiring to be the vanguard of reliable green fluid machinery.
1, Experience unparalleled efficiency with our high-performance 3D flow semi-open impeller. Crafted with precision and innovation, this state-of-the-art impeller boasts a professional aerodynamic and structural design, ensuring a superior profile. Revel in a blower that provides an extensive range of stable operating conditions, where the pinnacle of polytropic efficiency can soar to an impressive 88%.
2, Embrace versatility with our vaneless diffuser technology, engineered for an expansive operating range that adapts to your every need.
3, Discover the future of compact design with our integrated gearbox and compressor, meticulously crafted to deliver a streamlined and efficient structure.
4, Simplify your logistics with our all-in-one integral skid-mounted package. This comprehensive solution combines the compressor, gearbox, and motor into one cohesive unit, ensuring ease of transportation and effortless installation.
5, Benefit from our cutting-edge automation that guarantees unmatched reliability, exceptional efficiency, and sustainable energy savings. Enjoy a user-friendly operation that meets the highest standards of modern engineering.
1. At NANTONG DART-RICH FAN CO., LTD, we are steadfast in delivering "intelligent service" with a mission to be "more accurate, more comprehensive" than ever before. Our expansive network is supported by 13 state-of-the-art marketing service centers located throughout China, complemented by a global sales and service network that ensures continuous and efficient support wherever you are.
2. Our dedicated after-sales team is always prepared for swift international travel, with all personnel holding active passports to facilitate rapid responses to overseas maintenance needs. We are committed to being available for you 24/7, tirelessly delivering outstanding service throughout your project's duration no matter when you need us.
3. "1191" Service Commitment: Experience unparalleled service excellence with our "1191" guarantee - where we pledge to address and feedback on on-site issues within an impressive 1 minute; acknowledge your service request within 1 hour; provide a comprehensive solution within 9 hours; and ensure our team is on the ground within 1 day to resolve any concerns.
4. Our after-sales service hotline is always at your fingertips: 0086-400-625-2668. Call us anytime for immediate support.
Q1. Are you a factory?
A1. Yes, Dart-Rich has production base in Nantong City Jiangsu Province and Yueyang City, Hunan Province China.
Q2. Where is your factory?
A2. Our Production base in Nantong City Jiangsu Province, and we have other factory in Hunan.
Q3. How long is your warranty?
A3. We insist on providing customers with the best protection, the whole machine, 24 months warranty, 36 months warranty for the host.
Q4. What certification do you have?
A4. At present, we have passed ISO 9001, ISO 14001, ISO 45001 and so on.
Q5. What accessories do you use for your machine?
A5. Our spare parts and hosts only cooperate with big brands, we insist on winning customers with quality.
Q6. How many years of history does your factory have?
A6. Our factory started in 1966, we insist on continuous innovation and research and development. In June 2019, the equity structure reform was carried out and the company became a partnership enterprise; to meet the needs of the company's rapid development, Dart-Rich (Hunan) Fan Co., Ltd. was established in December 2020.
Q7. Do you have an official website?
A7. If you have any questions, please feel free to contact us.
Our Overall Base Fan Compressor with Speed Regulation and Watervapour Features boasts a complete set of advanced pneumatic technology. Imported directly from world-class foreign mature stage models and cutting-edge design software, we ensure our clients enjoy swift and optimal model selection. These superb products are meticulously categorized into 18 versatile series, each adept at handling flow rates from 1 to 240 t/h, with a precise temperature rise spectrum ranging from 8 to 24ºC.
1, Heat pump distillation, the revolutionary process of utilizing cutting-edge technology to elevate efficiency and sustainability.
2, Waste heat recovery, harnessing the unused energy to maximize operational performance and reduce carbon footprint.
3, Environmental protection field: spearheading industrial advancement in wastewater treatment, including lithium battery wastewater, recycling, landfill leachate treatment, and waste incineration fly ash leachate separation of sodium and potassium, delivering a cleaner, greener future.
4, Lithium-Ion battery industry: pioneering innovations in salt lake lithium extraction, iron phosphate solutions, ternary precursor wastewater treatment, and comprehensive nickel battery circulation, leading the charge towards a more efficient energy storage landscape.
5, New energy industry: redefining solutions in photovoltaic and polycrystalline silicon wastewater treatment, championing a sustainable energy revolution.
6, Food & beverage industry: transforming the landscape with advanced concentration and extraction of amino acids like alanine, refining sugar liquid processes, and perfecting beverage jam concentration.
7, Pharmaceutical industry: enhancing the production process with state-of-the-art evaporation, concentration, crystallization, and drying techniques for Chinese and Western medicines, ensuring purity and quality.
8, Chemical industry: breaking new ground with innovations in caprolactam process polymerization, polylactic acid PLA devices, nylon 66 production, and sophisticated chelating agent crystallization, among others.
9, Metallurgical industry: advancing the treatment of challenging waste streams like sintering desulfurization, coking, vanadium extraction, and smelting wastewaters to uphold environmental integrity.
10, Power industry: setting new standards in the treatment of desulfurized wastewater from power stations, optimizing environmental compliance and operational efficiency.
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