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What's the difference between condenser and cooler?
2018-10-25
Today both Condenser and Cooler are very important heat exchanging components in commmercial or industrial refrigeration equipments, which are widely applied in many fields. Lots of customers who look for UAR for model selection are curious about the difference between Condenser and Cooler. So let’s make a brief introduction. 1)Phase change doesn’t occur in Cooler while it happens in Condenser. Ge...
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What is the application for industrial chillers
2020-09-15
Industrial Water Chillers are used in many Industries The cooling pump of industrial chilled water or other liquid is through process or laboratory equipment. Industrial water chillers are used to control the products, mechanisms and factory machinery industries. The industrial water chiller can be centralized; each unit cooling meets a variety of needs, or dispersed in each application or device,...
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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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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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How dose sewage source heat pump works?
2019-04-16
Using domestic sewage? We are saving your MONEY! Sewage source heat pump is one of the most promising heat pump technologies in the world.It is estimated that by 2020, the new residential heating demand area in seven major provinces and cities in north China will exceed 400 million square meters.At present, the area of central heating (non-clean energy) in north China is 5.13 billion square meters...
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The difference between square type crossflow closed circuit cooling tower and traditional open cooling tower
2019-05-08
H.Stars Group water cooled chiller unit always need to adopt cooling tower to supply water to the cooling system . Hence, H.Stars has summarizes the difference between square type cross flow closed circuit cooling tower and traditional open cooling tower. The cooling water of the open cooling tower is directly contact with the air for heat exchange in the packing process, so the purity of the...
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How can pharmaceutical air conditioning systems reduce operating costs by 40%
2019-08-30
Pharmaceutical factories need to meet GMP requirements in the production process, and the temperature, humidity and cleanliness should be controlled within a certain range. Under general circumstances, the temperature should be controlled at 18℃~26℃, the relative humidity should be controlled at 45%~65%, the pharmaceutical factory clean area is divided into ABCD level. The C and D level of the wor...
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How to manufacture the shell and tube heat exchanger I
2019-12-20
How to manufacture the shell and tube heat exchanger I Shell and tube heat exchanger is a kind of heat transfer device, which is composed of shell, tube plate, tube bundle, baffle and cover; How is the manufacture to produce the shell and tube heat exchanger? In the manufacturing of heat exchanger, the manufacturing process of cylinder, head and other parts is the same as that of general con...
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How to manufacture the shell and tube heat exchanger II
2019-12-20
How to manufacture the shell and tube heat exchanger II 4. Machining: after checking whether the dimension (outer diameter, thickness) and material of the tube sheet meet the requirements of the drawing, the surface roughness of the machined tube sheet shall not be greater than 25 μ m, and the tube sheet plane shall be visible. 5. Tube plate hole processing: after the tube plate hole of the ...
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The Difference between sewage source heat pump and air source heat pump
2020-01-16
The heat pump is based on the reverse Carnot cycle principle. It doesn’t cost many electricity by refrigerant system. Using refrigerant as carrier to continuously absorb the free low-grade heat energy in the heat source and convert it into high-grade heat energy, thus realizing the transfer of low-temperature heat energy to high-temperature heat energy. According to the different heat source ,H.St...
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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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How to produce a coil heat exchanger
2020-04-17
As we all know, coil heat exchangers are very important part of a air cooled chiller and air source heat pumps. How does a factory produce coil heat exchangers? Below are total 9 different procedures to maintain superior quality products. 1. Material preparation (copper tube, end plate, side plate, middle support plate, short U-head, gas / liquid tube, liquid distribution tube) 2. Fin stamping (pu...
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Shell and tube heat exchanger gaskets options
2020-06-06
In the design and manufacturing process of UAR shell and tube heat exchangers, how to ensure the encapsulation of the product is a very important topic. At present, there are many seal materials available on the market, the media in the container are diversified, and the physical properties of various media vary greatly. Choosing the right sealing gasket according to the working conditions a...
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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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Impact of New Coronavirus (COVID-19) on Refrigeration
2020-07-23
The current epidemic situation has changed both China and the world. Many companies are facing severe crises, and some large companies cannot bear it. They have begun to reduce personnel costs. News broke out one after another, Hisense Haier layoffs, and some companies laid off 500 people on the first day of resumption of work. In the next six months or longer, regardless of whether large, medium ...
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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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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 Difference of Three Types Heat Exchanger in Hot Water unit
2020-10-26
In general, tube heat exchanger in hot water unit has long life span. Shell and tube heat exchanger structure: The shell and tube heat exchanger is composed of shell, heat transfer tube bundle, tube sheet, baffle plate (baffle plate), and tube box. The shell is mostly cylindrical with a tube bundle inside, and both ends of the tube bundle are fixed on the tube plate. There are two types of heat tr...
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