Large-scale tunnel type low-temperature drying integrated machine favored by seafood enterprises

Recently, Liaoning Jiyun Garment Equipment Co., Ltd. successfully developed the JY-III tunnel type food low temperature drying machine, replacing the traditional product drying mode of seafood processing enterprises, with energy saving, saving labor, reducing costs, improving efficiency, etc. Many advantages are favored by seafood processing companies.

The Liaoning Jiyun Garment Equipment Co., Ltd., located in Liujiapao Neighborhood Committee of Xincheng Street, was formerly the Donggang Low-voltage Electrical Appliance Factory. Over the years, this company has taken the general manager Huang Xueren as its core research team, supported by Harbin Institute of Technology Institute of Automation, and has been at the leading position in the research and development of electronic control equipment. The modular switchgear designed by the company was incorporated into the national 863 plan. The developed electromagnetic lock was selected in the distribution line of the Beijing Olympic venues. The hundreds of products developed were exported to Japan, South Korea and other countries and regions, many of which were filled by products. Domestic blank.

JY-III tunnel type food low-temperature dryer adopts internal circulation closed design according to the principle of biochemical suspension. Only a small amount of electric energy is required to evaporate the water in the sea product body through low temperature to achieve the drying of the product, and the vaporized steam is converted again. Water recycling. This method replaces the traditional boiler-based heating and drying production technology of seafood processing companies, which saves a lot of coal and avoids air pollution from boiler emissions and steam emissions.

In addition, the low-temperature dryer has a high degree of automation. The drying process of seafood products is completed automatically, saving manpower and time. Due to the closed design of the internal circulation, the production can be arranged at any time according to the needs of the climate and environment. Low-temperature dryer makes the product evenly heated in the drying process, and it is also dried in a vacuum environment. It plays a key role in guaranteeing the color of the product. The quality can meet international standards. It can also accurately control the moisture of the product and ensure the product. Under the premise of quality, increase business efficiency.

After the country introduced the policy of banning small boilers, the advent of low-temperature dryers has found a way for seafood processing companies to transform their production methods. Currently, Hailong, Yongming and other food processing companies have begun to install the equipment. Dalian, Shandong, Zhejiang Food processing companies in Jiangsu and other provinces and cities are also attracted to purchase.

The QNP Steam Turbines` capacity mainly covers 200MW and below, include NI series (Normal Impulse Turbines) and HE series (High Efficiency Turbines). Our steam turbines are flexible and diverse in structure and layout so as to meet various requirement of our users. Aiming at the global leading equipment manufacturing enterprise, our design and R&D standards are higher than GB standard and in the same league with European and American energy equipment manufacturers.

1.Characteristics of QNP Turbine


  • High speed, high efficiency, low energy consumption
  • Highly integrated three platform and one station, require smaller space
  • In-the-factory assembly and whole machine transportation make site installation easier, faster and more economical.
  • Single-tier and direct exhaust, condenser floor installation, lower construction cost
  • QNP adopts advanced small pitch-circle technology in its high-end High Efficiency Turbine products, and hence considerably improved the turbines`flow efficiency.


  • By combining the advanced technology of European turbine with QNP technology, and optimizing the integration between imported advanced R&D tools and advanced domestic design software, QNP has solved the universal defect of inter-stage efficiency loss in most domestic units.



  • Using 3D bending-torsion blade design to improve the final and penultimate stage efficiency and structural strength to ensure long-time continuous operation of the unit.




  • Using high-speed running design and full-cycle steam distribution to improve the unit`s flow efficiency, reduce space occupancy, and make the installation more efficient.




  • Optimized enthalpy drop distribution design, through the comparison of tens of thousands of design data, form the best single-stage enthalpy drop distribution solution to ensure that each unit is in its maximum efficiency.




  • High-precision and high-quality manufacturing process: to ensure the high precision and high quality of key dynamic and static components, the flow passage components are processed by four-axis or five-axis CNC machining center.





  • Specially produced for high-end users, each component is carefully designed and the unit always presented to the customer as a flawless modern industrial artwork.



  • Maximum internal efficiency may reach 88%


2.Technical characteristics of parts

Gland sealing matching: the industry-leading and advanced gland sealing structure design reduces the steam leakage loss.

Blade assembling: the optimized blade molded lines are designed by the international advanced design software and processed by high-grade, high-precision and advanced technology which improve the thermal efficiency greatly.

Governing system: advanced governing methods are used for high control precision and fast response speed and which also has the electronic over-speed trip function, load shedding trip function, as well as auto start, grid connection and on-load function.

Rotor: we have shrink-on rotor and solid forging structure rotor which are all processed by Mitsubishi Planer machine and adjusted by vacuum high speed dynamic balancing machine to make sure the vibration of each position of bearing is in good state when the Steam Turbine running. Small vibration of the rotor we produced is a distinctive characteristic of our products.

Condenser: the stainless steel screwed pipe is used as heat exchanger with good anti- pollution ability and high heat-exchange efficiency. High-quality titanium tube is used when the cooling water is seawater. We use digital controlled lathe for drilling hole.

Casing: the split is processed by one-off molding technology and the precision of which can be 0.0058MM without any steam leakage. The concentric circles of the whole axis are processed by high precision turn-milling of the 5-joint axis machining center.

Diaphragm: we use qualitative carbon steel as the support and make the flow field better comply with the design via special welding technology so as to improve the internal efficiency.

Lubricating oil system: the multiple filtration technology--impurity strainer of oil tank, double bucket strainer for refined filtration, bearing inlet strainer which can be replaced during running--make the turbine oil entering the bearing bush achieve the best performance.

Control and protection system: QNP uses the Siemens microprocessor as the core of the system to ensure the stability and timeliness of signal processing. For important signal, multistage redundancy functions are introduced to ensure the safe and stable operation of equipment. Friendly interface makes operator work easily. More than 3-monthes` record of operating data can be saved by recording system and also can be extracted at any time.  

3.Various layout and application

Except the general double-tier layout structure, we also developed steam turbine with single-tier and fast-installation layout structure, mainly includes:

(1)Oil tank as base plate:


The position of oil tank for Condensing Steam Turbine can be designed under the steam turbine as the base plate with the steam turbine, bearing pedestal and gear box on it which has same horizontal plane with condenser.

(2)Three platform and one station steam turbine:


Composed of steam turbine base plate, auxiliaries base plate, control base plate and centralized oil station for a convenient installation and layout at site. And the centralized pipeline will let the site more clean and tidy.

(3)Axial exhaust type


Mainly applied in 15-50MW condensing and pumping condensing high efficiency turbine. This type of steam turbine adopted single-tier arrangement, with axial exhaust directly into the condenser. Suitable for whole machine delivery, and can considerably shorten the installation period and reduce civil engineering costs.

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Shandong Qingneng Power Co., Ltd. , https://www.qnpturbines.com