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...

With the development of science and technology, a large number of new ideas and new technologies have been accepted and applied, which has created favorable conditions for improving the medical environment and medical facilities of hospitals. At the same time, it has put forward higher requirements for hospital medical facilities. The air conditioning system faces outstanding challenges. The operating room, ICU, CCU, PICU, NICU, EICU, central supply, venous fluid distribution center, genetic reproductive center, etc. have strict requirements on temperature and humidity, and have both hot and cold demand throughout the year. The volume of the building for medical cleansing is usually large, and the load characteristics of the inner and outer areas vary greatly, especially in the winter or transition season. When the outer area needs to send heat, the inner area needs to be cooled all year round due to overheating. For air-conditioning systems that operate intermittently in medical clean-up projects, the inner zone should consider the problem of warm-up of the air-conditioning system during the winter. There is cooling demand in the transition season and winter inner zone. The chiller is self-protected due to low ambient temperature and cannot be started normally. In order to meet the above-mentioned hot and cold demand for medical clean equipment projects, it is conceivable to centrally set up cold and heat sources to achieve comprehensive utilization of energy; comprehensively consider the characteristics of hot and cold load and hot water demand in the transitional season and winter medical clean equipment projects, it is recommended to use four regulations. Functional heat pump unit or small heat and cold station (6 regulated multi-function heat pump). Four-control multi-function heat pump unit The four-control multi-function heat pump unit can obtain condensed heating hot water from the condenser while obtaining chilled water in the evaporator, and the cold and heat imbalance parts are discharged through the balance heat exchanger, thereby achieving continuous simultaneous cooling and heating. And only input one energy will get both cold and heat, which will greatly reduce energy consumption and reduce emissions. Using the comprehensive energy efficiency TER to evaluate the efficiency of the unit in the simultaneous cooling and heating mode, the scroll compressor unit TER>7, the screw compressor unit TER>8. The four-control multi-function heat pump unit integrates cold and heat sources. One unit has four tubes, two for chilled water inlet and outlet, two for hot water inlet and outlet, cold and hot automatic balance, cooling capacity and heating capacity can be realized separately. 0~100% independent adjustment. The four-control multi-function heat pump hot and cold water unit should meet the requirements of cold and heat load in summer and winter design conditions, and should also meet the requirements of non-full load. Therefore, there...

With the development trend of modernized fisheries such as shrimp, crab and fish in factory farming, factory farming requires certain conditions. Controlling water temperature is a key technology. Shrimp, shellfish seedlings, groupers, squids, etc. require water temperature at 22 °C ~ 25 °C or so. In winter, the culture water needs to be warmed up. In summer, the culture water needs to be cooled. When the water temperature is controlled in a suitable environment, the breeding survival rate can be effectively improved and the breeding density can be greatly improved, thereby effectively improving the economic benefits of the farmers. In terms of aquaculture constant temperature, most of the farmer equipment is backward. Many winter farms still rely on boiler burning coal mode, which not only pollutes the environment, but also solves the problem of heating in winter. When cooling seawater in summer, it is necessary to set up cooling equipment. . The traditional method of extracting underground seawater directly into seawater to reduce seawater temperature seriously wastes groundwater resources and destroys the water source environment required for breeding. Aquaculture constant temperature method (1) Aquaculture can be roughly divided into 2 categories according to the farming method and indoor requirements. This time, let us first popularize the first category: the heating pool heating tube heating constant temperature mode. This type of heating can be applied to almost all thermostats in aquaculture projects. The water in the pool is dissipated (the surface of the pool is cooled to the environment, the heat of the pool to the pool and the wall, and the heat load required by the fresh water) causes the water temperature to drop. Therefore, it is necessary to ensure that the heat supplied to the pond meets the loss of the pool. The heat can guarantee the constant temperature of the water body. For the demand, the heat provided by our system design heat pump heating is equal to the maximum heat dissipation of the pool. The temperature difference between the inlet and outlet water of the constant temperature pipeline of the tank body may be greater than the temperature difference between the feed water and the return water of the heat pump. Therefore, the system is designed to add an intermediate water tank to ensure the temperature of the inlet and outlet water of the water body is stable. The factors affecting the selection of the heat pump main unit are the maximum heat loss rate of the water body. There are three factors affecting the heat dissipation of the water body: the heat dissipation from the pool to the environment, the heat dissipation from the water body to the bottom of the pool or the wall of the pool, and the heat demand from the new water. For the whole project, we must pay attention to the insulation of the greenhouse in the pool and the thermal insulation of the pool. It is also necessary to control the amount of water exchange to...

Dear Valued VIP Customers: Please note that H.Stars Group will be closed from Jan. 27 to Feb. 12 ,2019 for Chinese New Year /Spring Festival, and we will come back to work on Feb. 13, 2019 . H.Stars Group would like to express our best wishes to you during this festival season. We appreciate your business and look forward to serving you at all times. Wish you all the warmest of holiday cheer ! Sorry for the inconvenience , if you are in need of any assistance or support from our side during the holiday, welcome to contact at any time  sales@hstars.com.cn or +8613119505727 May the upcoming year bring you and your family health, happiness, safe and a joyous holiday season. Yours Truly H.Stars Group

Zero Pollution Heat Pump Project The first regional “coal to electricity” clean heating pilot demonstration project invested by Shanxi Environmental Protection (SEPG)and Shanxi Huannuo Environmental Protection Co., Ltd. in Linyou County, after 2 months of intense construction, currently, 5 heating stations and 2 single hanging points have been completed and put into use, providing clean heating services for the 260,000 ㎡ of users in the eastern part of Linyou County. 【Reporter: This is the clean energy heating station of HuiMing Community in Linyou County. The equipment behind me is the air source heat pump system. It mainly uses electrical energy to absorb heat from the air. Heating water temperature and Central heating after conversion . While achieving high-efficiency heating, this system also exerts its characteristics of environmental protection, energy saving and emission reduction. It can be said that it has basically achieved zero pollution. 】 Before 2018, the heating system of Linyou County was based on the central heating through underground thermal pipe network. Due to the old pipe network, insufficient flow and large heat loss in many places in the old city, heating quality and standards are difficult to meet the masses demand. This year, after Shanxi Environmental Protection Group implemented the “coal to electricity” clean heating pilot demonstration project in Linyou County, after more than a month of operation, residents generally reported that this winter heating is not only high temperature, but also the air quality has been greatly improved. 【Feng Zhigang, resident of Linyou county said: the temperature is good this year. It keeps around 20 degrees. You can't feel cold in here.】 【Ms. Li, resident of Linyou county: in terms of hygiene, last year's hygiene was not as good as this year's overall, last year the air was dusty, but this year the air is much cleaner than before. 】 Ma Xiang dong, Chairman of Shanxi Huannuo Environmental Protection Co., Ltd. told reporters that in the implementation of the “coal to electricity” clean heating pilot demonstration project in Linyou County, they passed the preliminary investigation and demonstration and expert review, based on the winter weather data of Linyou County and the old city. The building is free of external wall insulation and heat dissipation from the end radiator, which is solved by an air source heat pump system. The project is designed according to the distributed central heating method. A total of five clean heating energy stations will be built. Each heating season can save about 5712 tons of coal, reducing the emission of various harmful substances by more than 10,000 tons. The energy saving and environmental protection benefits are very significant. 【Ma Xiang dong, Chairman of Shanxi Huannuo Environmental Protection Co., Ltd.: If we use the "coal to electricity" clean energy heating system can ...