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What should I do if the air source heat pump unit is frosted in winter?
2018-12-11
What should I do if the air source heat pump unit is frosted in winter? How to quickly defrosting it ? Every heating season, there is always frosting problem, because once the frost can not be timely defrosted, the heating effect will be affected, and it might break down the system . However, there is no product that does not frost, and whether it is possible to defrost in time is the key. If the ...
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Indoor Artificial Ice Rink Refrigeration System Design And Selection
2021-03-11
Indoor Artificial Ice Rink Refrigeration System Design And Selection 1.Refrigeration System Features The refrigeration system of indoor ice skating rink usually adopts two refrigeration methods: direct expansion and indirect cooling. Direct expansion adopts "Hstars" brand condensing unit; indirect cooling adopts "Hstars" brand screw type low-temperature chiller, Glycol is used as a refrigerant to ...
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How to descale the water-cooled condenser
2024-04-11
How does the chiller descale the water-cooled condenser? Many refrigeration units adpot water-cooled cooling system. The inner wall of the water-cooled condenser is easy to scale. These scales will affect the heat exchange effect, resulting in an increase the condensing temperature, which will badly lower cooling capacity and increased unit power consumption. Water-cooled condensers should be regu...
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Choosing a network monitoring industrial water cooled Chiller from HStars
2019-02-21
Choosing a network monitoring industrial water cooled Chiller from HStars The single-chip controller of the HStars scroll typr chiller can customize the network monitoring function. The specific functions are as follows: 1.Industrial water cooled chiller networked monitoring the operational items-- Start command, stop command, reset command, cancel preheat, open external circulation pump, s...
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Dry Type and Flooded Type evaporator structure, principle, difference and advantages and disadvantages
2023-06-12
As we all know, the four major components of the refrigeration system are: compressor, evaporator, condenser, and throttling device. Among them, the type and characteristics of the compressor as the heart of the refrigeration system are more well known than the other three components. In addition, the evaporator is another key component. Do you know about the type and characteristics of the evapor...
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UNITED (GUANGZHOU) A / C & R CO.LTD. Muestra Fuerza de Tecnología Avanzada con Nuevos Intercambiadores de Calor en Exposición de Refrigeración China
2019-04-19
El 9 de abril de 2019, UNITED (GUANGZHOU) A / C & R CO.LTD. participó en la 30ª Exposición de Refrigeración de China, llevándose la intercambiador de calor para unidades de tipo spray y la intercambiador de calo...
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The Solution of Cold Water of Concrete Mixing Station
2022-12-16
1.Background of the project Temperature-controlled concrete is required for large-scale pouring of large hydro power dams, nuclear power, high-speed iron, and high-rise building foundations. During the concrete mixing process, the internal volume of the concrete hydration heat increases, especially the heat generated by the stirring under high temperature conditions is higher. In the subsequent cu...
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H.Stars Group has launched the first batch of catalogs with 9 different types
2020-03-25
H.Stars Group has launched the first batch of catalogs with 9 different types. For more details or soft copy of our catalogs, welcome to contact us sales@hstars.com.cn . After launching the first batch of 9 new catalogs, H.Stars Group has been informed by clients overseas that they start to understand our products more. The first batch of catalogs is mainly for medium and large centrifugal and scr...
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Application of double source heat pump unit in automobile painting workshop
2020-07-16
Automobile production and manufacturing process includes stamping, welding, coating and general assembly. According to relevant statistics, coating workshop involves heating, cooling, power, communication control, lighting, etc. energy consumption accounts for a large proportion in the whole manufacturing process (stamping, welding, coating, etc.), accounting for more than 70% of the cost. The gen...
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Meet in Chongqing,Meet in Refrigeration Exhibition | Hstarschiller.com
2020-09-03
The 31st International Exhibition on Refrigeration, Air Conditioning, Heating, Ventilation and Food Frozen Exhibition (abbreviated as China Refrigeration Expo 2020) will be held at Chongqing International Expo Center from August 19 to 21, 2020. At that time, Guangzhou United A/C&R Co., Ltd. will bring its self-developed all-stainless steel products, titanium tube evaporator, and H.Stars ...
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H.Stars Group industrial water screw chillers are ranked top 75 of the world tire industry
2020-09-03
Anhui Jiatong Tire Co., Ltd. is a large-scale tire manufacturing enterprise solely established by Jiatong Group Singapore Jiatong Tire Co., Ltd. Among the 55 major tire manufacturers in China, Anhui Jiatong ranks first in tire production and sales; in the world tire industry The Top 75 ranked 21st in total sales in 2001. The chilled water supply system mainly provides 7-12℃ chilled...
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Basic requirements for structural design of low temperature heat exchanger
2020-09-09
Carbon steel and low-alloy steel heat exchangers (design temperature lower than -20℃), austenitic stainless steel heat exchangers (design temperature lower than -196℃) are low temperature heat exchangers, and the structural design should follow the following in principle. Material selection of low temperature heat exchanger: 1. Use temperature of plastic materials Polyvinyl chloride (PVC) -15℃~+80...
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How to do daily maintenance for air-cooled chillers | Hstarschiller.com
2020-11-10
Air-cooled chillers, as a kind of more efficient refrigeration equipment in chiller products, are widely used in the domestic industrial market and become necessary equipment for many industrial production. At the same time, although the air-cooled chiller is equipped with multiple protection devices, these are all to prevent the failure from directly damaging the unit. If the company wants to ens...
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The Role and Characteristics of Condenser in Refrigeration System
2020-11-16
The four major components of the refrigeration system are compressor, evaporator, condenser and throttling device. The role of the condenser in the refrigeration system is mainly to cool and liquefy the gaseous refrigerant in the high temperature and high pressure state discharged from the compressor, so as to meet the requirements of the circulating use of the refrigerant in the system. The selec...
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What is a plate and shell heat exchanger | Hstarschiller.com
2020-12-07
The plate and shell heat exchanger is composed of a plate bundle composed of a plate group and a shell. It is a plasma arc welded corrugated plate group placed in the shell instead of the heat exchange tube of the original shell and tube heat exchanger. The plate group is used as the heat exchanger of the heat transfer element. The two fluid media respectively flow through the plate side and the s...
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Tips for seasonal water chiller system shutdown in winter
2021-03-12
Introduction: Winter is coming, and the ambient temperature is about to drop below zero. This will cause great damage to the chillers, water pumps, cooling towers, terminals and other equipment. In order to ensure that chillers work normally during winter, the chiller has to survive in the low temperature environment, because it will cause a great loss to users if the unit is not maintained with p...
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Energy Saving Chiller System with Heat Recovery Unit of 70℃ Hot Water
2021-04-13
The heat recovery chiller is a new type of energy recovery chiller. It has one more heat recovery device than conventional chillers,it is an economical chiller. It can produce hot water for free at the same time when making cold water. The hot water temperature can reach up to 70 degrees. It is very suitable for hotels, guesthouses and pharmaceuticals, electronic constant temperature and humidity ...
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How to select and design with industrial low temperature chiller unit
2021-04-20
Recently, when communicating with some customers, we found that we were not very clear about the type selection and system design of low temperature units. However, the low temperature chiller is a very important equipment for chemical industry, raw material pharmaceutical factory and other enterprises, and it is also the place with the largest energy consumption for such enterprises. Therefore, h...
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