The refrigerant (i.e. refrigerant) absorbs the heat of the cooled material in the evaporator and vaporizes into steam. The compressor continuously extracts the generated steam from the evaporator and compresses it. The compressed high temperature and high pressure steam is sent to the condenser, where it releases heat to the cooling medium (such as water, air, etc.) and condenses into high-pressure liquid. After depressurization by the throttling mechanism, it enters the evaporator and vaporizes again,Absorb the heat of the cooled object and cycle it over and over again.During heating, the refrigerant changes the refrigerant flow direction through the four-way valve. The refrigerant flow direction is just opposite to that during refrigeration. The refrigerant first passes through the evaporator, then returns to the condenser, and finally returns to the compressor.Application: plastic industry: accurately control the mold temperature of various plastic processing, shorten the cycle of beer molding, and ensure the stability of product quality.Electronic industry: stable
Features of the box type water chiller: the box type water chiller is a product specially designed and produced for supporting small industrial equipment. It is compact, delicate, simple and applicable, and is an ideal supporting product for small industrial equipment. Its characteristics are as follows: 1. All pipeline insulation design,Prevent local convection in the body pipeline. 2. Cooling temperature range: 5 ℃ - 35 ℃. 3. Freezing protection of independent temperature controller. 4. Stainless steel heat preservation water tank. 5. Phase sequence protection of control line, high and low pressure switch control of refrigerant system. 6. Hydrophilic fin condenser. Better heat transfer effect. Faster heat dissipation. 7. Compressor and pump have overload protection. 8. Large capacity shell and tube evaporator is used,Good refrigeration effect. Suitable for high temperature environment. 9. Refrigerant R22. Good refrigeration effect. Shanghai refrigerator is a
Mold temperature control machine, also called mold temperature control machine, was initially applied in the temperature control industry of injection mold.Later, with the development and application of the machinery industry, the mold temperature machine is now generally divided into water temperature machine and oil temperature machine, and the temperature control accuracy can reach ± 0.1 ℃.Mold warming machine is widely used in plastic molding, die-casting, rubber tires, rollers, chemical reaction kettles, bonding, mixing and other industries.Broadly speaking, it is called temperature control equipment, which includes temperature control of heating and freezing.Mold warming machine is widely used in the plastic industry. Its main functions are: 1. improve the molding efficiency of products;2. Reduce the generation of defective products;3. Improve the appearance of products and restrain the defects of products;4. Speed up production progress, reduce energy consumption and save energy.There is also a lot of room for the application of mold temperature machine in the die casting industry,
Operating principle of heat transfer oil heater Product features of heat transfer oil heater: 1. High quality heat source heat transfer oil heating system can output hot oil with a temperature of 350 ℃ for heat users under normal pressure liquid phase;The heat transfer oil heating systems of our company all use Fuji temperature control instruments from Japan, and use PID self-tuning intelligent temperature control technology, so the control accuracy can reach about ± 1 ℃, accurately controlling the temperature range used;The main heating power supply adopts the contactless switching circuit of solid module, which adapts to frequent switching and has no interference to the power supply network.It is also anti dry burning.The hot oil cooling system can be designed according to user requirements to meet the production process requirements of rapid cooling after temperature rise;2. Energy saving, low operating cost The conductive oil heating system is liquid phase closed circuit circulation, and the difference between the oil outlet temperature and the oil return temperature is 20-30
1. The heat balance control of injection mold The heat conduction of injection molding machine and mold is the key to the production of injection molded parts.Inside the mold, the heat brought by plastics (such as thermoplastics) is transferred to the materials and steel of the mold through thermal radiation, and transferred to the heat conducting fluid through convection.In addition, heat is transferred to the atmosphere and the mold base through thermal radiation.The heat absorbed by the heat conducting fluid is taken away by the mold temperature machine.The heat balance of the die can be described as: P=Pm － Ps.Where, P is the heat taken away by the mold temperature machine;Pm is the heat introduced by the plastic;Ps is the heat emitted by the mold to the atmosphere.2. The purpose of controlling mold temperature and the influence of mold temperature on injection molded parts In the injection molding process, the main purpose of controlling mold temperature is to heat the mold to the working temperature, and to keep the mold temperature constant at the working temperature.above
The mold temperature machine is used to adjust the mold temperature to balance the mold degree, which can be heated or cooled.The mold temperature machine uses the heat conduction medium with high heat conductivity to send the excess heat in the mold away in a very short time.After the heat balance temperature is set, the temperature can be automatically controlled within the minimum error, and the fixed value can be maintained.After the heat balance temperature is set, the temperature can be automatically controlled within the minimum error, and the fixed value can be maintained.The actual name of mold temperature machine should be called mold temperature controller. At present, there are two types of mold temperature machines in the market: water transport mold temperature machine and oil transport mold temperature machine. Their working principles are the same, but the media used are different according to actual requirements.Mold warming machine is widely used in plastic molding, light guide plate, die-casting, extrusion, extrusion, rubber tire, roller, chemical industry, reaction kettle
[Reaction kettle heating equipment, reaction kettle heating equipment price, supply of reaction kettle heating equipment, sales of reaction kettle heating equipment] has the "self-tuning" function, which automatically adjusts the parameters of the temperature controller to achieve the * working state.The heating can be adjusted by PID automatic temperature control and manual temperature control, and the temperature control accuracy can reach 0.5 ℃;Through stepless speed regulation and speed display function, the speed can be adjusted arbitrarily;So as to achieve the purpose of automatic temperature rise, automatic constant temperature and stepless speed regulation.The temperature control range of reactor heating is large, the temperature is uniform and stable, the heat conduction speed is fast, and the temperature rise and fall speed is fast.It can automatically control the temperature and quickly reach the set temperature. The set value and actual value are displayed separately.The heating is uniform, the temperature is adjusted by PID self-tuning intelligent control, and the temperature control accuracy is 1 ℃, which can meet the strict requirements of high process standards
[Supply of roller oil heater, roller oil heater, price of roller oil heater, sales of roller oil heater] Roller oil heater, roller wheel temperature control machine, in fact, roller temperature control is a process of heating the roller to the temperature required by the product, and then a continuous cooling process.There are many different names for the roller temperature controller in the market, such as the roller mold temperature machine, the three roll calender mold temperature machine, the roller oil heater uses the heat transfer oil as the medium, uses the circulating pump to force the heat transfer oil to circulate in the liquid phase, transfers the heat to one or more heat using equipment, and after unloading by the heat using equipment, it passes through the circulating pump again, returns to the heater, and absorbs the heat again,It is transferred to the heat consuming equipment, so as to realize the continuous transfer of heat, raise the temperature of the heated object, and meet the heating process requirements.Streamer
Heat transfer oil heating and circulating system - The heat transfer oil heating and circulating system uses heat transfer oil as the heat transfer medium, uses the electric heating method, circulates the heat transfer medium in the equipment through the high temperature circulating pump, transfers heat to the temperature control equipment through the high temperature heat transfer medium, and heats the heat transfer oil through the heating wire after returning to the equipment.The equipment has the function of keeping the temperature of the parts requiring temperature control constant. When the system tests that the temperature of the heat transfer oil is high, the system stops heating and cooling until the temperature of the heat transfer oil drops to the set temperature.When the system tests that the temperature of the heat transfer oil is low, the system starts heating until the temperature of the heat transfer oil rises to the set temperature.The temperature of the temperature control equipment is mainly controlled by controlling the temperature of the heat transfer oil.Heat transfer oil heating circulating system
The full name of mold temperature machine is mold temperature controller, which is called differently in all walks of life.It is called CPU for short in English and is widely used in plastic molding, light guide plate, die-casting, extrusion, extrusion, rubber tire, roller roller, chemical industry, reactor, bonding, internal mixing and other industries.Broadly speaking, it should be called temperature control equipment, including temperature control in heating and freezing.Mold warming machine is widely used in the plastic industry. Its main functions are: 1, improve the molding efficiency of products;2. Reduce the generation of defective products;3. Improve the appearance of products and restrain the defects of products;4. Accelerate production progress, reduce energy consumption and save energy-Mold temperature machine - Mold temperature machine also has a large space for application in the die casting industry, especially in the manufacturing of magnesium alloys and aluminum alloys
It is very complicated to calculate the matching model of water chiller according to its refrigerating capacity and heating capacity of heating equipment.The following is a very popular calculation method for the cooling of injection molding machine molds.1、 There are three types of water cooled open type water chillers, which are suitable for large-scale centralized cooling. They need additional heat preservation water tank and water pump. At the same time, they need water tower heat dissipation. The water cooled box type is suitable for machine side cooling and centralized cooling, without additional water tank and water pump. At the same time, they need water tower heat dissipation and air cooling, which are suitable for machine side cooling and centralized cooling. They do not need additional water tank and water pump, and do not need water tower heat dissipation,The requirements for air flow in the environment are relatively high. II. When the model size is selected for cooling the injection molding machine mold, it can be calculated according to the injection volume of the injection molding machine. Generally, 1 HP water chiller is required for every 6 ounces of injection volume. For example:
In order to comprehensively and accurately reflect the development status and future trend of the solar electric heater industry, China Business Intelligence Network launched this report on the basis of a large number of thorough market research, mainly based on the basic information of China's national *, the country *, relevant industry associations, relevant newspapers and magazines at home and abroad, as well as a large number of materials published and provided by professional research units.The current situation of solar electric heater, the supply and demand situation of solar electric heater market, the current situation of the industrial chain, and the status of key enterprises in China were elaborated and analyzed in detail, with emphasis on the detailed and in-depth analysis of the market development trend, and the future development prospects and trends were carefully judged according to the development trajectory of the industry,Find new investment opportunities for industrial investors.It provides reference for enterprises to understand and invest in this field.
In recent years, centrifugal chillers have been widely used in chemical industry, petroleum, food, pharmacy, mineral processing, coal, water treatment and shipbuilding.Centrifugal water chillers use electricity as the power source. Freon refrigerant evaporates and absorbs the heat of refrigerant water in the evaporator for refrigeration. The Freon wet steam after evaporation and heat absorption is compressed into high temperature and high pressure gas by the compressor, condensed into liquid by the water-cooled condenser, and then enters the evaporator for recycling after throttling by the expansion valve.1、 The market demand for centrifugal chillers has always been strong, and screw chillers account for the majority of the market demand.With the introduction of smaller, more economical and energy saving centrifugal chillers.Centrifugal chillers have swallowed up part of the screw machine market.Now centrifugal chillers have taken over some screw chillers
Heat transfer oil heater: it uses coal, heavy oil, light oil, combustible gas and other combustible materials as fuel, and heat transfer oil as heat carrier.The circulating oil pump is used to force the liquid phase circulation, deliver the heat energy to the heating equipment, and then return to the once through special industrial furnace for reheating. The heat transfer oil, also known as organic heat carrier or heat medium oil, has been used in the industrial heat transfer process as an intermediate heat transfer medium for more than 50 years.1. It has the characteristics of low pressure, high temperature, safety and energy saving.2. With complete operation control and safety monitoring devices, it can precisely control the working explosion, and the explosion-proof level can reach Grade C.Organic heat carrier boiler is a new type of special boiler with heat conduction liquid as heating medium.It has low pressure and high temperature working characteristics.With the development of industrial production and the progress of science and technology, the organic heat carrier furnace has
Suzhou Lideson explained that the heating power and the pressure and flow of the media cycle are also factors that must be considered in the process of selecting the lower mold temperature machine.Different raw materials have different properties, and they have different processing characteristics. The influence of mold temperature on the surface quality fluidity, shrinkage and injection cycle of the workpiece is a factor that must be controlled in plastic processing and manufacturing.Research shows that 24% of waste products are caused by improper mold temperature.For this reason, mold temperature control systems are widely used in various plastic processing fields from injection molding, blow molding to extrusion molding to heat the mold to the working temperature and keep the mold temperature within a certain precision range.However, if the mold control system is not properly designed and selected, it will not only fail to improve the forming efficiency of the product, stabilize the product quality and reduce the defective rate, but also cause other equipment to
We all know that water chiller is a kind of machine that achieves refrigeration effect through steam compression or absorption cycle.These liquids can flow through the heat exchanger to cool the air or equipment.The steam compression chiller consists of four main components of the steam compression refrigeration cycle. These machines can realize different refrigerants.Refrigerant used in absorption chiller and benign silica gel used in city water are used as desiccant.Absorption chiller uses water as refrigerant and relies on the water and lithium bromide solution between them to achieve a strong affinity for refrigeration effect.However, whether we know something when we buy water chillers? Poor quality water chillers will only bring harm to our product quality and use safety, so we should first check the quality when selecting and purchasing industrial water chillers.Chiller and general water
When installing the industrial water chiller, it is necessary to ensure the safety of installation, so Lidson Refrigeration explained that the following points must be met at the installation site: 1. The refrigerator should be kept away from ignition sources and combustibles.If it is set together with heating elements such as boilers, attention shall be paid to and the influence of thermal radiation shall be considered.2. The room temperature should be below 40 ℃ as far as possible and should be well ventilated. If the temperature is 40 ℃, the relative humidity of the environment must be below 90%.Do not install or store outdoors or in the open.3. The place with less dust shall be selected as far as possible at the installation site.4. The lighting at the installation site shall be good for future maintenance and inspection.5. There must be enough space around the unit for future maintenance, overhaul and cleaning of evaporator condenser heat exchange tubes.6. The whole machine room and around the unit
Because many customers do not know much about the selection of equipment in the refrigeration industry, they have difficulty in describing the equipment they need to cool down. When customers purchase industrial chillers, they do not know which type of chiller they should choose to cool down their enterprise's equipment and zui's small capital investment can achieve both benefits and effects.The following is a brief description of model selection: there are many types of industrial chillers, such as: chemical chillers | explosion-proof chillers | explosion-proof cryogenic chillers | Shenzhen chillers | Shenzhen industrial chillers | reactor chillers | precision chillers | energy-saving precision chillers | press chillers | precision press chillers | energy-saving screw chillers | ultra-low temperature chillers | large parallel screw chillers | energy conservationExplosion proof water chiller | energy-saving open water chiller | screw low-temperature water chiller | energy-saving water cooling
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As all friends in the plastic processing industry know, in addition to injection molding, extrusion, blow molding machines and other hosts, the plastic processing industry also needs a large number of auxiliary equipment.For the modern plastic processing industry, the performance of auxiliary machines also has a significant impact on product quality and production efficiency of enterprises.There are many kinds of plastic auxiliary machines, such as: water chiller, mold temperature machine, dehumidification dryer, plastic grinder, metal separator, etc., and each kind of plastic auxiliary machine has several classifications, for example, the water chiller can be divided into water cooled water chiller, air cooled water chiller, screw type water chiller, etc., while the mold temperature machine can be divided into oil transported mold temperature machine and water transported mold temperature machine.These mold warming machines are widely used in various fields of the plastic processing industry. Plastic auxiliary machines are all * equipment, and most of the time they are * components of the full set of production lines
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