Replacing electric heating with heat pump drying saves over 20000 yuan per month

1. Electric heating and drying have high costs and are prone to defective products

This project is located in Jiangsu and is an industrial drying project. Originally, high-power electric heating was used for drying, and the drying process was divided into one-way air ducts. The drying temperature reached over 100 degrees. Electric heating and drying are linked with printing machines, and the materials on the printing machine assembly line are quickly dried using the high-temperature drying room provided by the printing machine. The entire process takes only a few minutes, with 24-hour drying throughout the day and equipment maintenance every half month. With such a high-intensity working frequency, electric auxiliary heating often malfunctions.

Due to the high temperature and humidity of the air in the drying room during the entire drying process, there are water droplets on the surface of the materials after drying, resulting in a high rate of defective products. Additionally, the long-term operation of electric heating often affects the normal production needs.

The user said, "At the beginning, coal-fired hot air stoves were used because the government banned coal and changed to electric heating. Due to the highest temperature exceeding 100 ℃ during the drying process, a suitable energy source was not found. The dehumidification effect of electric heating was poor, and customer complaints often occurred due to water droplets on the surface of the product."

2. Three 15P drying and dehumidification integrated machines, saving about 2/3 of energy consumption

In 2021, users learned about air source heat pump drying through a friend's introduction and highly recognized the energy-saving performance of heat pump dehumidification drying. They contacted Zhejiang Nachuan New Energy, and the Nachuan technical team also provided the final two-stage heating plan. They were very satisfied with the current indoor optimization and improvement of the air duct drying system. After reviewing the manufacturer's project renovation plan, they finally decided to renovate the electric heating drying system.

Due to the temperature requirement for drying exceeding 100 ℃, and the inability of air source heat pump drying to meet the demand, the drying process needs to be renovated and upgraded. Based on the original electric heating configuration and energy efficiency, three 15P closed dehumidification and drying integrated machines have been installed. The unit is placed 2.5 to 3 meters above the ground and connected to the original drying room through air ducts.

After the renovation, the energy consumption of the heat pump dryer per hour is about 42kW. However, the original use of high-power electric heating saved 2/3. The system takes a day off every 15 days, which can save users about 20000 yuan in costs per month (the electricity price is calculated based on the highest 1 yuan/kWh). Adopting a closed dehumidification and drying integrated machine, it can also dehumidify during the drying process, avoiding the occurrence of water droplets on the surface of the material due to high humidity in the air, improving the quality of the finished product.

The user expressed great satisfaction with the effect of the renovation: "The energy-saving performance of heat pump drying is very outstanding, which saves a lot of costs compared to electric heating, and even lower than the cost of the original coal-fired hot air stove. The most crucial benefit is that it solves the problem of water droplets on the surface of the finished product, playing a role in cost reduction, efficiency improvement, and quality improvement."

3. Industrial drying and dehumidification integrated machine, with a maximum outlet temperature of 85 ℃

It is understood that the project uses the Nachuan air source heat pump drying and dehumidification integrated machine, which can control temperature and humidity in the industrial product processing and drying area. It is widely used in the fields of digestion mold drying, catalyst temperature and humidity control drying, printing product temperature and drying, and so on. The product adopts an integrated design, which is easy to install and can be used immediately; High temperature drying, with a maximum air outlet of 85 ℃; Logic control digitization, curve based, can achieve precise temperature and humidity control, ensuring the quality and uniformity of drying; The product also comes with a waste heat recovery device, which is not wasteful and more energy-efficient; Adopting multi-layer protection devices, the system operates stably and reliably.

Zhejiang Nachuan New Energy Technology Co., Ltd. focuses on air source heat pump drying products. It is a solution integrator that integrates product research and development, manufacturing, sales, after-sales service, drying system design, drying process research, and consulting services. Kaideli Heat Pump takes it as its responsibility to assist the country in energy conservation and environmental protection, with the goal of building a benchmark in the heat pump drying industry. With advanced product manufacturing and testing capabilities, it has achieved self matching of sheet metal, fin heat exchangers, and spraying, providing strong software and hardware guarantees for fast and high-quality services to the market with short delivery times.

4. Customer first, providing comprehensive pre-sales, in sales, and after-sales services

Adhering to the principle of putting users first, Nachuan continuously develops and develops high-quality products that meet market demand and new practical models, and provides users with comprehensive pre-sales, in sales, and after-sales services.

Pre sales: Provide free technical consulting services to users; Inviting users to inspect product manufacturing processes, product prototypes, product testing facilities, and quality management systems; The expert technical team provides a one-stop solution for free based on on-site conditions and technical parameters provided by users.

In sales: on-site investigation, providing engineering guidance for installation; Provide on-site management personnel with training on unit operation and maintenance; Special contractors, standardized installation to ensure project quality; Joint acceptance, witnessing the birth of efficient and energy-saving drying systems with users.

After sales: equipped with a high-quality after-sales service team mainly composed of technical personnel, to respond and handle customer satisfaction in a short period of time upon receiving service information or feedback from customers; The entire product is guaranteed to be repaired for 18 months, and the compressor is guaranteed to be repaired for 3 years; The product implements the "three guarantees" service (guaranteed return, replacement, and repair if there are quality issues with our company).