SR Series-Straight through control flow parameter:

The whole system we adopt is fully cloesd pipin design, high efficiency plate heat exchanger used to reduce the demand of thermal fluid as well as greatly increase utilization of heat in order to achieve rapid ups and downs in temperature, The system with an expansion vessel, and the heat-conducting medium in the expansion vessel does not participate in liquid circulation, whatever the temperature is high temperature or low temperature, the expansion tank is limited to 60℃. The working life and properties of thermal fluid are also protected, by avoiding direct contact between the hot fluid and atmosphere.

1. The method of changing the control set value ,can respond to the system lag in the process as quickly as possible, and obtain the minimum system overshoot. The control consists of two sets of PIDs (each set of PIDs are variable) control loops. These two sets of control loops are called: the primary loop and the slave loop, and the control loop of the master loop is used as the setpoint of the slave loop. The system adopts feedforward PV, and the output of the PID operation result of the main control loop is combined with the feedforward PV signal as the set value of the slave control loop, so that the temperature change gradient is controlled to ensure the temperature control accuracy of the system. (General anti-lag cascade control)

2. A specially designed lag predictor (no model self-built tree algorithm) generates a dynamic signal yc(t) instead of the process variable y(t) as a feedback signal. An e(t) signal is generated to the controller to cause the controller to predict that there is no large hysteresis in the control, so that the controller can always generate a suitable control signal. That is to say, even if there is a large hysteresis, the dynamic signal yc(t) can keep the feedback loop working normally. While the general PID is used to control the process with significant time lag, the controller output is not suitable due to the lag time. The feedback signal keeps growing, causing the system to overshoot and even out of control.

3. Through three-point sampling (material temperature point, temperature control system outlet temperature, temperature control system inlet temperature), through our company's own model-free self-built tree algorithm and general anti-lag cascade algorithm, there is no built-in expansion tank.

LNEYA's all products series

As an enterprise certified by ISO9001, LNEYA has reached international standards in the integration of various management systems, indicating that LNEYA can provide the customers with the expected and satisfactory qualified products continuously and steadily.

The products of LNEYA, which is added to the CE mark, has passed the corresponding conformity assessment procedures and the manufacturer's Qualification Statement, are in conformity with the EU Directive.CE is used as a permit for the product to enter the European market.

So far, YNEYA has11 patents of utility model authorized certificate.

Foreign cooperative customers

Domestic cooperative customers

LNEYA has established long-term and stable cooperation with customers at home and abroad.
Many customers are enjoying our high quality after-sales service, sending us all kinds of thank-you letters and expressing our desire to continue to establish long-term and solid cooperative relations.

LNEYA make market and user need oriented products,focusing on science and technology applying international advanced technology, endlessly get rid of the stale and bring forward the fresh following the market step and meet market demand.

Exhibition at home and abroad

LNEYA attends various exhibitions at home and abroad every year. At the exhibition, we show the latest research equipment of LNEYA. Every year, long-term cooperative customers will come to exhibitions and communicate with us. We are also actively developing new customers to provide them with high quality machines and services.

After sale service

Quality assurance

Guarantee that the goods are sold to be conform to the provisions of the contract and qualified new products by factory inspection, quality performance, technical indicators and configured are in accordance with manufactures and technical documents stipulated in the contract.

Installation and debugging

After the arrival of the goods, my company or my company agent is responsible for installation and debugging of equipment need on-site installation and debugging.  

Inspection and acceptance

After installation and debugging, acceptance by the customer to confirm the goods to be conform to the provisions of the contract and qualified new products, quality performance, technical indicators and configured are in accordance with manufactures and technical documents stipulated in the contract, and after the confirmation of a full set of technical documents, sign the installation acceptance report and confirm acceptance.

Training

At the same time of installation and debugging of equipment, my company’s after-sales service engineer is responsible for technical training for user until user can be skilled of operation. In the process of using equipment by customer, customer can consult relevant technical issues to after-sales service personal of our company at any time, according to the situation, my company will arrange training on site or remote.

After sale service commitment

A full free one year warranty since the date of acceptance, during the warranty period, all repairs and spare parts are free of charge(instrukent malfunction caused bu human factors will be charged of cost price of spare parts); After the warranty period, we will be responsible for maintenance of equipment for lifetime, according to the actual maintenance fees, appropriate fee will be charged.

SR Series TCU Temperature Control System