Heat pump drying technology and traditional drying technology ,which has more advantages? At present, agriculture, food, chemical industry, ceramics, medicine, mineral processing, pulp and paper, wood processing and other industries, all the production process almost all use drying, drying material quality depends on whether a good control of constant temperature. Heat pump drying technology is a mild, close to natural drying method, more suitable for most agricultural products, medicinal materials and other heat-sensitive materials drying. The principle of heat pump dryer is the use of reverse carnot principle of gas compressor pressurized, become (temperature up to 100 ℃), high temperature and high pressure gas entering the indoor side of heat exchanger (condenser), refrigerant condensing liquid heat release of the high-temperature heating drying room air. The materials in the drying room will vaporize and evaporate the moisture in the materials in the form of hot air, and the evaporated water vapor will be discharged by the dehumidification system to achieve the purpose of drying the materials. The heat pump dryer only needs to consume the electrical energy which the compressor USES when the work, may obtain more energy from the air, the energy efficiency ratio is as high as 400%, is more energy saving than other drying methods. 1. characteristics of traditional drying technology For example, at present, most dehydrated vegetables are still produced by the traditional drying method -- oven back to longhuo road heating drying method, which has several problems: 1. The drying temperature is too high. The traditional drying technology, drying temperature is not easy to control, the general drying temperature is about 75-90 ℃, and dehydrated vegetables drying process requirement drying temperature shall not exceed 65 ℃. 2. Excessive drying time. Traditional drying technology, each processing of 1 ton of vegetables need at least more than 24h, sometimes due to poor drying effect to rework, it takes longer. 3. Large energy consumption. Traditional drying technology, thermal efficiency is low, about 30%-60%, in the drying process, drying evaporation water heat accounts for about 36%, waste gas loss accounts for about 58%, dry material heat and dryer heat loss accounts for 2% and 2%, thermal efficiency is only 40%. 2. the characteristics of heat pump drying technology 1. Low drying temperature. Heat pump drying technology of the production technology about 38-52 ℃ lower than the conventional drying technology, the heat pump drying technology of the heating temperature at about 37 ℃. 2. Short drying time. Heat pump drying dehydrated vegetable production process, the need for the time does not exceed about 8h, generally from preheating to product 4h can be completed. 3. Good drying quality. Heat pump drying process produced vegetables, product color is better, the inherent quality is stable. 4. Low energy consumption. Due to the heat pump drying process...

In November and December 2018, a well-known Indonesian company purchased three Flooded type screw water-cooled chillers at Guangzhou H.Stars (Guangzhou)Refrigerating Equipment Group Ltd. Two of them are 120tons of 40STD-FM690WS4 Flooded type screw water-cooled chillers, and the other one is 385tons of 40STD-FM2120WD4 Flooded type screw water-cooled chillers, mainly used in the food industry. H.Stars Flooded type screw water-cooled chiller has higher heat transfer efficiency, and the temperature difference between the outlet water temperature and the evaporation temperature is small, and the resistance along the path is small. It is suitable for units with large circulation and good cooling effect. Applications: Air-conditioning environment such as hotels, theaters, office buildings, shopping plazas, food, medicine, plastic chemicals, instrumentation and other process cooling places. Unit parameters: evaporator in/outlet water temperature: 12/7℃, condenser in/ outlet water temperature: 32/37℃, using R134a refrigerant. Unit characteristics (1) The energy consumption of dry type similar products is reduced by 10% ~ 15%. (2) The screw compressor is adopted, which has stable performance, low noise and long service life of the motor. (3) The high-efficiency Flooded Type shell-and-tube heat exchanger is matched with the compressor, and the result is compact and the heat exchange capability is strong. (4) The advanced throttling device prolongs the service life of several groups while improving the effect of the whole machine. (5) The energy efficiency rating is 3-1. The following is a detailed map of the unit: Pictures before shipment(40STD-FM690WS4) Pictures before shipment(40STD-FM2120WD4) Old equipment used by customers, need to be replaced with our new equipment Successfully installed our new equipment and commissioning test ok.

Since air energy heat pump began to enter the clean energy market, it has been favored by users due to its features of energy saving, high efficiency, safety and environmental protection.It is widely used in schools, hospitals, hotels and other fields, especially in the bath place. Taking a foot bath in shenyang as example, coal-fired boilers were used as heating equipment before. Later, due to poor performance and high cost, the operators of the bath chose to dismantle the boilers and use the air energy heat pump system as the new generation of hot water supply equipment. There are several reasons for the choice of air energy heat pump as water supply equipment in the bath center: First, to a large extent ,this equipment is very safe to avoid all kinds of explosions, leakage of electricity and other accidents, so that guests can be safe to wash and enjoy. Second, the air can heat pump is through the absorption of free energy in the air to heat but not use natural gas. The whole process will not cause any pollution gas or substances, which is very helpful for environmental protection.Although the air energy heat pump will also rely on electric energy to drive, but not directly use electricity to produce heat energy, so there is no electric heating element in the water tank, effectively put an end to the occurrence of electric shock accident. Third, the air energy heat pump is green and environmentally-friendly with the national policy of coal to electricity, Fourth, energy-saving can also be a major highlight of the heat pump.Compared with the traditional heating equipment, its energy efficiency is high, the energy saving effect is obvious, there are statistics, in one year using air heat pump heating can save tens of thousands of costs. Air energy heat pump products are not only suitable for places such as bath centers, but also for places with hot water and heating needs. It is believed that with the vigorous implementation of national policies, air energy as a clean energy will win high recognition in the market.

Dear Our Valued Customers You are sincerely invited as VIP by H.Stars (Guangzhou) Refrigerating Equipment Group Ltd., to visit our Booth at E1-65 for 57th China International Pharmaceutical Macinery Exhibition. BOOTH NO.: E1-65 EXHIBITS: Glycol chiller & Magnetic Oil free centrifugal chiller Date: April 17-19, 2019 ADD: Changsha International Expo Centre Looking forward to seeing you! www.hstarschiller.com

The chilled water change of industrial refrigeration system Production enterprises often need chilled water for cooling in the production process. Due to the influence of production process and market output and other factors, the demand for chilled water is generally very large. In this case, it is very important to design a set of targeted chilled water circulation system. The conventional refrigerated water circulation system is sent to the production water point after being refrigerated by the chiller, and then returned to the chiller to complete the system closed cycle. However, when the water consumption of the system changes greatly, this system will cause the chiller to fail to operate normally. With years of experience in industrial project services, we have designed a solution to address the changing demand for chilled water In the double circulation system, a water storage refrigerated water tank is configured. The water tank is divided into high and low temperature zone, and the system is divided into outer circulation system and inner circulation system. The external circulation system mainly consists of water point, process chilled water delivery pump and freezing water tank. The process delivery pump pumps water from the low temperature zone of the freezing water tank to the water point, and then returns to the high temperature zone of the water tank after cooling. The process transfer pump adopts constant pressure frequency conversion control, automatically adjust the frequency conversion, the operation is more safe and energy saving. The internal circulation system mainly includes a freezing water tank, a freezing pump and a water chiller. The water pumped by the freezing pump from the high temperature zone of the water tank is cooled by the chiller and then returned to the low temperature zone of the water storage tank. With this set of chiller, the water flow into the chiller is not greatly affected by the change of chilled water volume in production, and the water tank has a certain cold storage function, which effectively solves the problem of frequent start up of the chiller and abnormal operation of the chiller. System not only can run safe, reliable, and energy saving effect is very good also, circulating pump from the tank high pumping water to the water chiller refrigeration, after the completion of the transfer to the water storage tank low temperature zone, so the chiller efficiency increase 15%, pump adopts frequency conversion control technology, to better meet the production water consumption change, but also more efficient water pump power consumption. Article from Hstarschiller.com

First of all, warmly celebrate the success of H.Stars Group at the 29th HVACR Expo in Karachi, Pakistan. At this Expo, H.Stars has displayed its flagship product: water cooled screw type chiller with heat recovery unit, and shell and tube flooded type heat exchanger. These two energy-efficient products have attracted a lot of interest and attention from many exhibitors and visitors. Likewise, many visitors, which from different industry such as pharmaceutical, construction, hotels etc, have attracted by our chiller and come to our booth. They come to advisory us about how our chiller can improve their energy efficiency. After our introduction and recommendations, many visitors have a clear understanding of our products, indicating recognition of our products and our professionalism. In addition, we also provided design solutions for some visitors. While reaching a cooperation agreement or intention with many customers, we also went to the customer's factory for site visits, which helps us understand installation and problems of refrigerating equipment of the client also recognize the requirements of customers and the refrigerating equipment industry in Pakistan. This experience helps us to an international perspective, which will bring new opportunities for the further development in the Pakistani market. At the same time, H.Stars Group is much honored to have the interviews of Pakistan TV (PTV) and the warm hospitality of local friends, which lets us taste the Pakistan cuisine and see the customs of Pakistan. We believe that through this profound and meaningful Expo experience, we will establish more business contacts and deeper friendship with Pakistan in the near future. Finally, we would like to show our sincere gratitude to the staffs of the Karachi Exhibition Association for their help during the Expo and the warm hospitality of the Pakistan friends. We look forward to seeing you again in the coming year.

How to maintain the low temperature chiller Introduction: Low temperature chiller is a type of industrial chillers. Many industries require low temperature cooling. They are generally used in pharmaceutical and chemical industries for cooling. Ordinary water chiller can't meet the requirements of refrigeration. Therefore, you need to use low temperature chiller to provide dozens degrees below zero water. Low temperature water-cooled chiller(general water temperature setting to 0 ℃ to (-40) ℃). The working intensity of the low-temperature chiller is relatively high. We need to maintain the chiller in daily use well, can we avoid the failure of the low-temperature chiller and ensure the normal operation of the equipment. Failure to maintain will result in production losses or safety hazards. So how to maintain the low temperature chiller? A.Inspection of low temperature chiller: Before using the low-temperature chiller, it is necessary to troubleshoot and overhaul the whole machine. First of all, it is necessary to check whether the power switch is normal, whether the safety of the fuse is good, and whether the connection of other parts of the chiller is normal, so as to ensure everything is normal before starting to operate. Secondly, after the use of the chiller, also want to carry out a certain inspection, to see if there is because of the use of the fault, found that should be handled in a timely manner. In addition, after a long period of use, the low-temperature chillers should regularly check the use of the heater copper pipe, refrigerating oil, oil filter element, drying filter and other components. In case of any damage, they should be replaced in time. B. Maintenance of low temperature chiller: 1. Antifreeze When the ambient temperature is below zero and the chiller is out of service, the concentration and density of the refrigerant inside the evaporator should be checked to prevent freezing. The cooling water system can run the cooling pump for 24 hours or drain the cooling water. 2. Maintenance of electronic control system Now we use mostly intelligent electric refrigeration equipment, electronic control system of intelligent controller (PLC and single-chip microcomputer), control panel, AC contactor and other electrical components. In a year the stopping down inside there will be a lot of dust when breaking the total power clean out all the electrical components, Clean up before the power on, to prevent battery drain and program loss in the controller. 3. Routine maintenance of the unit General water cooling cold water chiller use one to two years to do a routine maintenance (including the replacement of frozen oil oil filter drying filter element) to ensure that the use of the unit more stable and efficient. 4. Clean condenser and cooling tower Condenser and cooling tower is a circulation system, usually the cooling tower is an open cycle, heat exchange with the air for a long time there will be a lot of dust and silt in the cooling t...

From the drying process of mango, there are traditional drying methods and the current advanced hot air circulation drying method. As consumers pay more and more attention to food safety and hygiene, many traditional drying methods are not polluted and the production process is not the shortcomings of low hygiene and safety are slowly replaced by air source heat pump dryers. Mango is popular among people as a tropical fruit. It is well known that mango can be eaten in many ways. Among them, dried mango is also a popular food. Today, we will lead you to see how this delicious dried mango is produced. Experts say that air source heat pump dryers are in the form of continuous hot air circulation, which can improve energy efficiency. Energy efficiency has two meanings. From an environmental point of view, it can reduce greenhouse gas emissions and reduce environmental pollution. the elements of. On the other hand, it is a new technology that replaces traditional drying and drying. During the drying process, mangoes need different temperatures to be baked at each stage. There are high requirements for temperature and humidity. In the early drying stage, high temperature drying is required, and most of the moisture is quickly taken away. The heat pump dryer is used. The high-precision digital sensor can accurately detect the temperature and humidity values, and can also set different parameter data (function mode, temperature parameter, humidity parameter, etc.). The reason why dryers are becoming more and more popular in the field of food drying, mainly because it is different from traditional ovens and drying rooms, and adopts multi-layer mesh belt structure, which can realize continuous automatic production on a large scale. The electric heating method is usually adopted, the medium is environmentally friendly and clean; the conveyor belt adopts stainless steel mesh belt, which can withstand high temperature and corrosion resistance; the flow type drying, the temperature can reach 90 degrees, and the automatic temperature control device. The fruit dryer is suitable for the drying and dehydration of all kinds of seasonal fruits, and the conveyor belt is made of stainless steel mesh belt, light and environmentally friendly. H.Stars’ heat pump drying unit is developed by Stellar to develop hot air drying products. It is a low-level heat source for obtaining hot air. It is energy-saving, efficient and environmentally friendly compared to other methods of making hot air. Heat pump dryer principle: Using the reverse Carnot principle, the gas freon is pressurized by the compressor, becomes a high temperature and high pressure gas (temperature up to 100 ° C), enters the heat exchanger (condenser) on the indoor side, and the condensate liquefaction of the refrigerant releases high temperature heat. Heat the air in the drying room. The air source heat pump dryer is a new type of drying device. The heat pump absorbs the low-temperature heat energy in the exhau...