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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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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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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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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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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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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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How to reduce the initial investment and operation cost of low-temperature chiller for chemical plants
2021-04-23
Nowadays, chemical plants always consider how to reduce the initial investment and operation cost when they need to install a low-temperature chiller system for the factory. Because low temperature refrigeration unit is a very important equipment in chemical plant, which plays an important role in safety production. The initial investment of low-temperature refrigeration unit is large, and i...
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How to measure brine concentration for the brine chiller
2021-05-21
How to measure brine concentration for the brine chiller ? Saltwater brine chillers are also one of the more commonly used refrigeration equipment. Its refrigerant is the so-called brine solution, which has a low freezing point. It is especially suitable for medium and low temperature chillers to carry cold capacity. The temperature is generally required to be controlled at 0 Below ℃, it is usuall...
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How does the chiller manufacturer guarantee the quality of the chiller
2021-06-04
Before manufacturing water chillers, chiller manufacturers will design considerations for the industry, cooling capacity, structure, etc. of a product, and consider the actual use environment to make certain optimizations when designing and assembling. . So how does the industrial water chiller manufacturer ensure the quality of the water chiller? To ensure the quality of chiller products, it is n...
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Attention: Brine concentration will cause serious consequences to brine chiller
2021-06-24
Low-temperature brine chiller is also one of the more commonly used refrigeration equipment. Its refrigerant is the so-called brine solution, which has a low freezing point. It is especially suitable for medium and low temperature chillers to carry cold capacity. The temperature is generally required to be controlled below 0 ℃, which is usually used for the low temperature demand of some special p...
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How to design a water cooled chiller for UHV electrode foil production line
2022-09-23
A proper water cooled chiller system for UHV electrode foil production line is very essential and important to the industry. However some HVAC engineers still have doubts on how to design a cooling system. Here we will bring a case reference for you. Project Overview This plan is designed for the aluminum foil production line one of the Western Electronic Technology Co., Ltd. The project is ...
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How to design cooling system for commercial office building to reduce the emission of carbon dioxide
2022-02-15
First of all we need to understand what is meaning by "carbon dioxide " here. Generally speaking, carbon dioxide emissions refer to the emissions of greenhouse gases such as carbon dioxide and methane. Carbon reduction action is to reduce greenhouse gas emissions, thereby reducing the greenhouse effect. If too much greenhouse gas emissions cause the earth's average temperature to be too high...
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