H.Stars (Guangzhou) Refrigerating Equipment Group Ltd.

Project Background The Synchrotron Radiation Laboratory of the University of Science and Technology of China has built China's first dedicated synchrotron radiation source mainly based on vacuum ultraviolet and soft X-rays. To ensure the reliability and stability of the light source, it is necessary to provide stable constant-temperature cooling water in the device. The temperature should be controlled within the range of 42±0.1℃, and the temperature of the constant temperature cooling water of other components which touched water should be controlled within the range of 20-25±1℃. First cooperation In January 2018, H.Stars immediately formed a professional technical team after receiving the demand for this project, and conducted discussion and research according to the technical requirements of the National Synchrotron Radiation Laboratory. After 40 days, we finally developed and produced a ±0.1℃ high-precision chiller that meets the technical requirements of the National Synchrotr

Ⅰ.Demand Situation Food and beverage workshop ice water system engineering. The ice water system mainly meets the requirements of ice water on the production line. The required ice water temperature has two, one is 5 degrees ice water; the other is -5 degrees. Ⅱ. Load Calculation 1.5 degrees ice water total cooling capacity is 1500KW 2.-5 degrees ice water total cooling capacity 750KW 3.12 degree water tank: 2*15m³stainless steel insulated water tank 4.－5 degree water tank: 2*15m³stainless steel insulated water tank Ⅲ.Design Ideas Due to the different ice water temperatures required by the production line, in order to reduce operating costs, chillers and ice water systems are selected according to different temperatures. Ⅳ.Equipment selection 1.Main Equipment: The 5 degree ice water system selected one H.stars water-cooled industrial chiller (model 40STD-2020WDI2, cooling capacity 2016KW, input power 348.4KW), equipped with one cooling tower. 2.Main Equipment: -5 degree ice water syst

1. Some special production processes such as: testing, precision material testing, precision instrument cooling water system, etc., need to ensure that the circulating cooling water inlet water constant temperature or high precision, so that the data or product performance is stable. 2. Water for food and medicine must ensure the temperature of the mixing water to ensure the stability of the product and the quality of the products in the four seasons. 3. During the product development phase, product performance, thermal testing or cold testing is required. Some products require watering, spraying, circulating water cooling systems, etc., and also require different temperature data such as high temperature and low temperature. H.Stars high-precision chiller is specially designed for the current high-power industrial chiller with low temperature control accuracy, low safety, poor water quality, and can not meet the matching needs of precision equipment. It has been developed and designe

Introduction of explosion-proof chiller: International Industries have demanded a lot from their HVAC machines. Some of equipment might be susceptible to explosions inside and outside their circuitry. Getting an explosion-proof chiller is essential for many industrial environments. However ,very few factory can manufacture explosion-proof chillers with mature technology and skilled engineers. H.Stars Group is one of the very few companies that can build explosion-proof machines. H.Stars team of engineers from R&D to quality inspection ensures that all explosion-proof chillers will definitely meet the standards of reliable equipment. H.Stars technicians and specialists have possessed 27 years of experience in designing machines. It is mainly used in special places such as inflammable and explosive, and the production power ranges from 10HP-200HP. Can be customized according to customer requirements. The components of the chiller are manufactured in accordance with national explosi

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 container manufacturing progress, but the requirements are different. The inspection of materials, drilling of tube plate and baffle hole, welding of cylinder and processing of flange are the key points to the quality. Throughout its manufacturing process, most of manufacturer still use traditional processes, in which the proportion of welding is relatively high, so it is necessary to weld in strict accordance with the welding process, and to detect the weld. The heat exchanger produced by H.Stars Group subsidiary company UAR, has gone through 18 processes. It has been meticulously processed in the heat exchanger process, providing two products with gua

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 heat exchanger is finished by the CNC machining center, ensure that the tube plate hole is vertical to the sealing surface of the tube plate, and the hole surface is not allowed to have longitudinal traces of continuity, so as to ensure the effective sealing after the mechanical expansion of the heat exchange tube and tube plate hole. 5. Fabrication and assembly of baffle plate: the baffle plate assembly is divided into two types, I-type and spiral type. After assembly, the baffle plate assembly is sleeved into the shell to ensure that the upper and lower baffle plates fit the shell wall, and the clearance is not more than 3mm, to prevent the influence o

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.Stars Group heat pump can be divided into  sewage source heat pump ,  air source heat pump , water source heat pump and  ground source heat pump . Hotel and SPA center will use a lot of hot water every day. Suitable hot water equipment can save a lot of energy cost. H.Stars  Sewage source heat pump and air source heat pump are favored by many users because of their energy saving, environmental protection, high efficiency and many other advantages. So for the hotel and bath industry to choose which heat pump equipment is more suitable? We will give you a comparison. A.Heat Source