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MVR, short for mechanical vapor recompression, epitomizes cutting-edge energy-saving technology, ingeniously designed to drastically diminish the need for external energy through the innovative reuse of secondary steam energy that it produces. At its core, this revolutionary principle involves the transformation of secondary steam generated by the evaporator. This steam is then masterfully compressed using a highly efficient steam compressor, converting electrical energy into invaluable thermal energy. The secondary steam undergoes a remarkable rise in both pressure and temperature, subsequently returning to the evaporator. This return reignites the heating of materials, inducing evaporation and achieving the miraculous recycling of the latent heat of vaporization of the secondary steam.
The DML series low temperature rise steam compressor from NANTONG DART-RICH FAN CO.,LTD is a marvel of modern engineering, consisting of a meticulously crafted compressor body featuring components such as the volute, impeller, main shaft, bearing housing, and seal. It also includes a coupling, motor, and electric instrument. This sophisticated assembly is designed to deliver optimal performance, reliability, and efficiency, setting a new standard in the field of steam compression technology.
3.3.1 The compressor base must be elegantly positioned on the foundation. Utilize wedge-shaped shims beneath the base to achieve a flawlessly level unit.
Skillfully place two wedge-shaped irons in an alternating fashion. Once leveled, expertly spot weld the irons at 4 to 5 strategic points.
The wedges should be crafted and installed by the user with attention to detail, ensuring perfectly even contact along the inclined plane.
The bearing capacity of each wedge iron should not exceed a robust 40Kg/cm2).
3.3.2 Employ a precision level to achieve perfect alignment. The unit's leveling requirements are as follows: axial level should be 0.05/1000mm, with a horizontal level at 0.10/1000mm.
The horizontal level of the unit is 0.10/1000mm, ensuring unparalleled stability.
3.3.3 Proper coupling alignment is crucial. Begin by confirming these essential prerequisites:
1) Ensure the main power supply is safely turned off;
2) Remove the protective coupling shield with caution;
3) Detach the diaphragm coupling's intermediate section seamlessly;
4) Verify the motor installation surface's flatness, ensuring it is free of debris or obstructions;
5) Ensure the motor bolt hole is appropriately larger than the bolt to allow smooth adjustments;
6) Have ample, pristine stainless steel gaskets ready, ensuring they are flat and free from any attachments. Avoid using long and thin gaskets for adjustments;
7) Utilize a high-precision dial indicator or laser alignment meter with 0.01mm accuracy, which the customer should prepare;
8) Prepare a sturdy bracket for supporting the dial indicator as illustrated below;
9) Use the motor hub mounting bracket to securely position the dial indicator on the wheel hub's edge, aligning the probe with the compressor wheel hub's outer edge;
10) Adjust the bolts around the motor feet for near-perfect alignment between the compressor and motor center lines, maintaining a maximum deviation of 0.05mm. The motor shaft center line should be subtly higher than the compressor's low-speed shaft center line, with a coupling end face of 0.03~0.05mm;
11) Thoroughly tighten the motor foot bolts, then meticulously review the coupling's outer circle and end face runout.;
12) Reinstall the coupling's intermediate section after a successful motor idle test.
3.3.4 Once the casing's alignment and 'levelness' are adjusted to perfection, tighten the anchor bolts. Post mechanical operation, ensure all bolts are re-tightened for optimal performance.
3.3.5 The impeller is a high-speed marvel, and any foreign solid or liquid can inflict irreversible damage. It is imperative that the connected pipelines are impeccably clean and conform to the steam corrosion standards of the system. Rectify any discrepancies and consider installing solid-liquid separation equipment, such as a gas scrubber or sedimentation tee, before the compressor inlet.
3.3.6 Expertly install the compressor's inlet and outlet pipes. Accord the import and export pipelines with the necessary accessories as per the PI diagram. Ensure the pipeline is supported by an independent bracket, safeguarding the compressor body from bearing its weight.
3.3.7 Once the grand installation of the main fan and its crucial ancillary equipment is complete and the concrete has firmly solidified, you are ready to proceed with the compressor operation test. This pivotal stage ensures that all components are seamlessly integrated and functioning perfectly in harmony.
3.3.8 The compressor's electric control cabinet should be strategically positioned within a 5-meter radius of the compressor itself. For seamless connectivity, the wiring from the compressor to the electric control cabinet should run through a threading pipe, elegantly placed underground. Once the electric control cabinet is securely in place, meticulously connect the wiring terminals within the cabinet to the lines at the remote DCS, ensuring optimal communication and operational efficiency.
Nantong Dart-Rich Fan Co., LTD. (formerly known as State-Owned Nantong Fan Factory) has a prestigious history dating back to its establishment in 1966. A significant transformation took place in June 2019 with an equity structure reform, paving the way for future growth. and the company transitioned into a dynamic partnership enterprise. To align with our rapid expansion ambitions, Dart-Rich (Hunan) Fan Co., Ltd. was launched in December 2020, marking a new chapter in our journey. Incorporating advanced German technology since 2004, we have made unparalleled technological strides in ensuring product stability, reliability, high efficiency, low noise, wear resistance, and exceptional temperature resistance. As the leading drafter of the standard for integral geared assembly type centrifugal steam compressors, we've set industry benchmarks.
Dart-Rich proudly holds ISO9001, ISO14001, and ISO45001 certifications, reflecting our commitment to excellence. Our flagship products—steam compressors, fans, and blowers—are indispensable across industries such as metallurgy, chemical industries, electric power, environmental protection, building materials, light industry, and burgeoning new energy sectors. Additionally, we offer unparalleled system optimization solutions and maintenance services for the energy-efficient renovation of wind systems.
At Dart-Rich, we are steadfast in pursuing management, mechanism, culture, and technology innovations, continuously advancing our digital intelligence initiatives, fostering a culture of strivers, and embracing 'three wisdoms'. With keen market insights, we drive organizational evolution, enhance our comprehensive customer service capacities, and facilitate swift, sustainable development.
Dart-Rich remains committed to our core values of 'Honest and Trustworthy; Dedicated and Professional; Altruism and Mutualism'. By consistently enhancing enterprise value, we strive to deliver maximum value to our customers and foster shared responsibility and creation among all stakeholders. Our ultimate aspiration is to become the forerunner in reliable, green fluid machinery!
1. Unmatched Durability and Resistance: Our impellers are masterfully crafted through forging and shaping with precision molds. Featuring premium duplex stainless steel, they boast exceptional anti-corrosive properties and superior wear resistance, ensuring longevity and consistent performance.
2. Premier Bearings and Lubrication: Incorporating SKF rolling bearings and advanced oil spray lubrication, our compressors provide smooth, reliable operation and extended service life, minimizing maintenance requirements and maximizing uptime.
3. Innovative Sealing System: The shaft seal is ingeniously designed with a carbon ring seal structure, complemented by an inflation or vacuum unit. This ensures robust isolation between the bearing housing and the compressor volute, enhancing efficiency and reliability.
4. Skid-Mounted Convenience: Our compressor unit features a sleek, integral skid-mounted design, offering unparalleled convenience for transportation and installation. This thoughtful design detail minimizes downtime and accelerates setup in any industrial environment.
5. Cutting-Edge Automation and Control: Experience a high degree of automation with user-friendly handling and real-time monitoring of pressure and vibration parameters. Our compressors are engineered for variable working conditions, utilizing frequency control to ensure they operate with utmost efficiency, adapting seamlessly to your specific requirements.
1. At NANTONG DART-RICH FAN CO.,LTD, we are steadfast in our commitment to providing 'intelligent service.' With a focus on 'more accurate, more comprehensive' solutions, we have established an impressive network of 13 marketing service centers strategically located throughout China, complemented by a global sales and service network. This ensures that no matter where you are, our exceptional service is always within reach.
2. Our after-sales service personnel are always ready to rise to the occasion, equipped with the necessary passports to swiftly address overseas maintenance tasks. We promise to deliver 24-hour non-stop service throughout the duration of your project, ensuring your peace of mind.
3. "1191" Service Commitment: Our unwavering pledge includes the following – within 1 minute, we will acknowledge any on-site issues; within 1 hour, we will respond to your service needs; within 9 hours, you will receive a comprehensive solution; and within 1 day, our dedicated personnel will be on-site. This is our promise to you.
4. For immediate assistance, please don't hesitate to reach out via our after-sales service hotline: 0086-400-625-2668. We are here to support you at every step.
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.
The comprehensive suite of pneumatic technology integrated into our Low Temperature Rise Steam Compressor with Adjustable Fan and Speed Control is derived from advanced, internationally-renowned models and cutting-edge design software. This ensures that users benefit from swift and optimal selection tailored to their needs. Our product line is meticulously categorized into 5 distinct series, each accommodating an impressive flow range of 4 to 250 t/h. Experience precise temperature modulation with a range of 4 to 11.2ºC, delivering unparalleled efficiency and consistency.
1. Heat Pump Distillation: Harness the power of our cutting-edge innovation for efficient and sustainable heat pump distillation.
2. Waste Heat Recovery: Maximize energy efficiency by capturing and reusing waste heat with our advanced solutions.
3. Environmental Protection Field: Revolutionize industrial wastewater treatment, lithium battery wastewater treatment, and wastewater recycling. Experience excellence in landfill leachate treatment and the sophisticated separation of sodium and potassium from waste incineration fly ash leachate.
4. Lithium-Ion Battery Industry: Elevate your operations with state-of-the-art process devices for salt lake lithium extraction, iron phosphate systems, and ternary precursor wastewater management. Ensure flawless treatment of lithium battery disassembly wastewater and optimize nickel battery circulation.
5. New Energy Industry: Propel your green initiatives forward with our premier photovoltaic wastewater treatment and polycrystalline silicon wastewater purification technologies.
6. Food & Beverage Industry: Enhance the concentration and extraction of amino acids like alanine, refine the concentration and drying of sugar liquids, and perfect the concentration of beverage jams with our specialized systems.
7. Pharmaceutical Industry: Excel in the production of Chinese and Western medicines with superior evaporation, concentration, crystallization, and drying capabilities.
8. Chemical Industry: Drive innovation in chemical manufacturing with our sophisticated caprolactam process polymerization device, polylactic acid PLA solutions, and nylon 66 production systems. Master chelating agent evaporation crystallization, mannitol concentration, and organic matter crystallization.
9. Metallurgical Industry: Transform the treatment of complex water systems including sintering desulfurization wastewater, coking wastewater, and vanadium extraction wastewater with our advanced methodologies.
10. Power Industry: Elevate the treatment of desulfurized wastewater from power stations with our pioneering technologies that promise reliability and efficiency.
