How To Choose The Screw Type Water-Cooled Chiller

Compared with the similar chillers, the screw type water-cooled chiller has many advantages. We as one of the top chiller manufacturersshare you more.

1. The temperature of the heat conducting liquid can be adjusted to any temperature you want, and it runs smoothly.

2. Using Aspera, Danfoss, Maneurop, Copland and other compressors of international famous brands, stable performance, able to work continuously. Compared with other similar equipment, product performance occupies the dominant position.

3. The design of screw type chiller is more humanized, flexible and convenient to use.

4. Though the microcomputer temperature controller, the temperature number on the equipment can be displayed, the adjustment unit is 0.1 degrees, the precision is quite high, the temperature range is of 5 degrees ~35 degree adjustable, in this temperature range you can adjust any temperature you want, if the temperature is out of range you can customize other refrigeration equipment.

5. Adopt hot gas bypass to save energy and improve control accuracy.

6. The use is more safe. Once the failure occurs, don't worry, there are a variety of fault alarms (over-temperature alarm, sensor alarm, high pressure alarm, compressor overheating alarm) to come to early warning.

7. It has a boot delay protection, so that you can use at ease.

8. All parts are safely grounded.

9. High performance circulating pump can ensure 24 hours of continuous operation.

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Knowledge Sharing Of Chiller Selection And Maintenance

Chillers can be used in a lot of industry, but who is the better low temperature chiller manufacturer in top chiller manufacturers?Let me tell you. The choice of own model and the maintenance are also very important. Next, see with me.

1. Range of temperature control

According to different temperature ranges, chillers are divided into standard chillers and low temperature chillers. The temperature range of the standard chiller is 3-35 degrees, and the temperature range of the low temperature chiller is 0-20 degrees.

2. Type selection

Industrial water chillers are mainly divided into water-cooled chillers and air-cooled chillers. Water cooled chillers need to be equipped with cooling towers, circulating pumps, and water towers are used for heat dissipation. The air-cooled chiller does not need any other equipment. It carries out heat exchange through its own fans and air.

3. Model selection

After determining the type of chiller, it is also necessary to choose the model. Because there are many specifications and models for each chiller. So when we install the chillers, we must carefully calculate the parameters such as refrigerating capacity and freezing water volume.

The methods of chiller maintenance ?

1. Compressor

Compressor is a key component in the unit. The quality of the compressor is directly related to the stability of the unit.

2. the cleaning of the condenser and evaporator

Because the cooling water of the water cooled condenser is an open loop circuit, the tap water commonly used is circulate through the cooling tower. When the content of calcium salt and magnesium salt in the water is large, it is easy to decompose and deposit on the cooling water pipe to form grime and affect heat transfer.

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The Application of Industrial Chillers

The chiller machine is needed in a lot of industries, basically chemical, medical, pharmaceutical industries are involved, then what industry can Wuxi Lneya chiller meet in the end? It is known that we are one of the top chiller manufacturers.

The cooling of the heating part of the semiconductor manufacturing device:

Cleaning and reprinting of single crystal, printing press, automatic holder installation device, spraying device, ion plating device, etching device, single crystal chip processing device, slicer, packaging machine, temperature management of developer, light device, heating device of magnetic field and so on.

Cooling of the heating part of the laser device:

Which industrial chiller manufacturer is better? Let me tell you that it should be the laser processing, the heating part of the welding machine, the laser marking device, the generator, the carbon dioxide laser processing machine, etc.

The cooling of the heating parts of other industries :

Plasma welding, automatic packaging machine, mold cooling, cleaning machinery, gold plating tank, precision grinding machine, injection molding machine, molding parts of resin molding machine, etc.

Analyze the cooling of the heating part of the machine:

The light source of the electron microscope, the light source part of the ICP luminescent spectrophotometer, the heating part of the spectrophotometer, the heat source of the X-ray analysis device, the heating part of the automatic pulse bar, the light source of the atomic absorption photometer, etc.

Cooling of the cooling medium of CNC machine tools and machining centers.

In these aspects, we should remind you that after finishing using the chiller, all the devices should be closed, the power plug should be pulled out, and the chiller should be cleaned up.


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Introduction To The Use Of Explosion-Proof Precision Chiller

Wuxi Lneya solves the problem of how to charge refrigerants in the absence of refrigeration.

1. Connect all kinds of equipment well, close the three valve when the vacuum pressure is down to 133.3Pa, remove the hose from the suction port of the vacuum pump, connect it on the R404 cylinder, and release the hose on the three valve.

2. Open the handle on the R404 cylinder slightly, and when the R404 refrigerant sprayed out of the loosened hose, the loosened hose was quickly fastened to the three valve (this is to remove the residual air in the hose).

3. Invert the R404 gas cylinder, the explosion proof precision chiller compressor is electrified, and the power line is put into the clamp type ammeter. Open the three-way valve handle so that the compressor can quickly shut down after inhaling part of the R404 refrigerant. Observe the pressure gauge pressure and the clamp ammeter, and the three valve handles are reopened after the pressure and current are reduced. After filling a part of the R12 refrigerant, the handle of the three valve is quickly closed, repeated so several times.

4. Through comprehensive observation: the pressure of the pressure gauge is stable at 0.03-0.05MPa (0.02-0.04MPa in winter and 0.05-0.07 MPa in summer). When the current of the clamp ammeter is steady at 0.6-0.8A, the condenser is evenly distributed and the filter temperature is slightly higher than the ambient temperature. The evaporator surface is evenly frosted and it will feel sticky. At this time, the amount of refrigerant charge is appropriate, that is, the capillary can be compressed by sealing pliers, then the capillary can be clipped by wire clamp and welded by oxygen welding at the fracture.

5. The soapy water is used to check the welding place.

Follow the steps and the refrigerant filling of the explosion-proof precision chiller should be completed basically, but it needs to be paid attention to that the refrigerant should not be overcharged at once in order to avoid failures.

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What Should Be Noticed In Detail When Installing A Precision Chiller?

First, when installation, everyone needs to check whether your cold water machine works normal, whether the accessories are all right, whether there is damage, so as to avoid problems in installation.

Second, when installing, the site of the precision chiller must be a place where the balance can support the weight of the machine. Once the weight of the machine can not be borne, heap of the heap matters are behind.

Third. The environment of the precision chiller should be in the room at a temperature above 5 centigrade. There should be enough space around the precision chiller for the maintenance of the machine.

Fourth. When selecting the precision chiller, one end of the chiller should leave the tube space for the condenser, and of course, use the door or other locations.

Fifth, to determine the application of your precision chiller, the greater operation power of the chiller and the water flow rate of the evaporator and condenser should be clearly calculated.

Sixth, we must consider any special circumstances to ensure that the water flow of the precision chiller is stable.

Seventh. The pipeline design of the precision chiller should be carried out in accordance with the conventional method. In the piping, the elasticity of the pipe should be set up and the water of the evaporator should be removed.

Eighth, it is suggested that the water supply of the evaporator and condenser choose water of better quality. Once the water quality is not good, it will cause certain grime, which will affect the heat transfer and breed the microorganism bacteria, and increase the operation and maintenance cost of the machine.

Nine, the filters for water pipes should be cleaned regularly, and all interfaces should be treated with rust prevention.

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Application Scope Of LNEYA Precision Chiller

The main application industries of LNEYA precision chiller include plastic industry, electronic industry, electroplating industry, medicine industry, food industry, vacuum coating industry and so on. These industries are the main application industries of precision chillers.

In the plastic industry: LNEYA precision chiller can accurately control the mold temperature of various plastic processing machines, reduce the plastic cycle, provide stable production and quality of the product.

In electronic industry: LNEYA precision chiller can stabilize the molecular structure of electronic components on the production line, increase the qualified rate of electronic components. LNEYA precision chiller is widely used in ultrasonic cleaning industry to prevent the volatilization of expensive cleaning agents and the injury to human body.

In electroplating industry: LNEYA precision chiller can effectively control the temperature of electroplating, enhance the density and smoothness of the plating, shorten the electroplating period effectively, highly improve the production efficiency and improve the quality of the product.

In vacuum coating, the LNEYA precision chiller can control the temperature of the vacuum coating machine conveniently and generate high-quality plating products.

In the medical industry, the LNEYA precision chiller effectively controls the temperature of fermented drugs. To make full use of the advantages of good cold water machines, the pharmaceutical enterprises should be able to continue the technological innovation. At the same time, the chiller manufacturers are constantly improving the cost performance and serving the pharmaceutical industry better.

In the machinery industry, the LNEYA precision chiller can quickly control the pressure of oil temperature, and at the same time can stabilize the oil temperature and oil pressure, thus prolong the working time of the oil, improve the efficiency of the mechanical lubrication, and greatly reduce the wear.

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Introduction To The Preparation Of Low Temperature Chiller' Operation

Why do low temperature chiller need to be ready for operation? We must be very clear that only when we are ready to check the low temperature chiller can we run the equipment better, can we run it more efficiently.

Before running the low temperature chiller, we need to check the refrigerant, water and electrical equipment, and check the oil separator liquid level, the correct oil position should be in the oil mirror center line between the line.

Be careful to check that all the pressure gauges for the low temperature chiller are open, and whether the oil thermometer has been inserted with the lubricating oil, and check or open all the valves on the oil road that they should be completely open.

Push the start button, the low temperature chiller starts, and then wait to see whether the oil pump is turning correctly, the oil pressure difference is not low than the surface pressure of 0.05-0.3Mpa, and the pressure difference of the oil filter does not exceed 0.1Mpa. Turn the coupling and operate the energy control valve at the same time, so that the unloading indication goes from 0%--100%, then 100%--0%, then manually stop the oil pump.

Try low temperature chiller with hand disc compressor coupling, no card resistance phenomenon shows the normal state. Open the exhaust valve on the compressor, water supply to the oil cooler, and water temperature depends on the oil temperature (the nozzle oil temperature is better to be 40 --55 c). At the same time, water supply to the condenser and evaporator , finally cover the main motor power supply, and the power lamp is on, then the low temperature chiller can be used normally.

With these detailed preparations, it is certain that the low temperature chiller can be better used to achieve the lowest cost and maximum operational efficiency.

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Refrigeration Principle Of Low Temperature Chiller

The refrigeration principle of the so-called low temperature chiller is to use the artificial method, compressor refrigeration, through energy consumption, in a cycle process, in the process that cooling materials take away the heat. Generally speaking, the compressor is use to refrigerate. With the refrigerant, the low boiling point material is used as the medium. The refrigerant is compressed in the compressor, the saturation temperature is higher than the ambient temperature, then it passed through the condenser and is condensed into liquid, liquefied through the throttle valve, and then the heat is absorbed by the cold medium to become the low pressure steam, finally it returns to the compressor cycle.

In addition to compressor refrigeration, there is ammonia refrigeration. However, the overall cost of compressor refrigeration is lower than that of ammonia refrigeration. So now, we tend to choose compressor refrigeration.

After understanding the principle of refrigeration, the selection of a series of equipment parameters such as water flow, outlet temperature and cooling capacity of low temperature chiller should be fully understood in order to make a better selection.

Of course, the refrigerants of low temperature chillers can be environmental refrigerants as far as possible, for the sake of more energy saving and environmental protection and in line with the demand of the public.

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The Prospect of the Supporting Heating Cooling Circulator

With the continuous development of enterprises, as a matching equipment used in the lad, the heating cooling circulator which acts as a brand for manufacturers will be prosperous in the market, accelerating the requirements of it constantly.

In recent years, the lab needs manufacturers to provide heating cooling circulator with a high quality content so as to carry out the experiment owing to the further development and promotion of scientific and experimental researches. Should supporting heating cooling circulator from brand manufacturers be offered, the safety of the experiment taken in the lab would be ensured.

One of the merits of the matched heating cooling circulators of brand manufacturers is its high efficiency which exactly meets the environmental requirement aimed at modern enterprises and lowers the cost of products, being a way for enterprises to make more profits. The supporting heating cooling circulator of brand manufacture is more obvious in pharmaceutical products. With the help of matched equipment in lab, medicine manufacturing enterprises save a lot of money and cut the high price efficiently every year.

Apart from the supporting heating cooling circulators of brand manufacturers can lower the cost vastly, they can get a perfect outcome. Besides, they can be applied extensively, which can be naturally popular equipment in the market.

The heating cooing circulator of brand manufacturers is increased constantly, but our company will stick to our goals, and innovate and do researches all the way long as so to be the best.

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What Decides the Price of the Heating Cooing Circulator?

The price of heating cooling circulator is determined by raw materials, manufacturing overhead, technical cost, impacting on the final quotation.

The heating cooling circulator is made of shell and internal parts. The shell is applied standard SUS 304, which can be also customized with plastics (standard color 7035). Influenced by national industrial policy recently, the price of stainless raw materials has been on the rise, especially the environmental factors limit the production, causing many plants to stop manufacturing or limitation. It is predicted that the price will raise continuously. To adhere to the principle of no shobby work, the production cost increases but the sale prices repeat so that the profits shrink. At the same time, raw materials are affected by environmental control, the prices rise slightly. Combined with the costs of two raw materials keep going up, the prise of heating cooling circulator will be up regulate without doubt.

For technology development, LNEYA possesses a high-quality group of expertise who are experienced in ultra temperature and high low temperature exploitation. It insists that the design of products, the purchases and selection of components, technological process of production, package and transportation are conform to the standardized management of ISO9001-2008 international quality accreditation strictly, striving for outstanding products, reasonable price and satisfactory service.

Raw materials, manufacturing expenses and technical cost decides the price of heating cooling circulator but the quality is determined by manufacturers. Good products will represent our strengths and good reputation also comes from excellent quality.

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The Analysis Of How To Maintain The Low Temperature Circulator In Daily Life

Guanya is a leading role in heating cooling circulator. It provides the customers with proposal and technology of controlling the cold and heat, temperature control system with stable property, extending the service life of heating cooling circulator at the most extent. In daily life, we should know about the maintenance method.
The manufacturers suggest that to check the fastening bolt of power wiring if it is loose, the normal status of high or low pressure value, and the running current or insulation resistant regularly.

It is important that if the device for drying and filtering of heating cooling circulator and sight glass are running normally. If the exit frosts, it indicates the filter is blocked which needs clean filter; if the sight glass demonstrates the wetness ( it turns red), the core of device for drying and filtering wants to be changed.

It is vital that lubricating lube of heating cooling circulator compressor works. When operating, the fuel level is lower than two of thirds of oil sight glass, lubricant should be added; if there is foul or deterioration, lube should be replaced, and filter ought to be cleaned or changed; at the same time, filter core should be changed.

It is suggested that when heating cooling circulator has been used for a long time, conduction oil should be checked every three or six months, and the replacement is determined according to the practical situation. The heating cooling circulator of Guanya in Wuxi applies totally-enclosed circulation line where heat transfer oil will not be leaked or polluted. Pay attention to the replacement when foreign matter or water go into the oil box.

Please be informed by manufacturers that if the heating cooling circulator is not used for the time being, to clean the conduction oil left in the pipe, and to maintain and keep dry.

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The Instruction Of Ultra Low Temperature Freezer Minus 80 Degrees

The machine must be tested before usage (or before it is energized again) in the following conditions: when ultra low temperature freezer is first used in ultra low temperature freezer minus 80 degrees, or after the ultra low temperature freezer is moved, or ultra low temperature freezer outages (including power failure) for more than 10 hours. It passes with the qualification certification.

The equipment of ultra low temperature freezer minus 80 degrees can only be powered up after standing in the freezer for at least 24 hours. There is no item in the empty box. After starting the machine, it will be phased into two stages, first to cooling the freezer to minus 40 degrees. Then it should be cooling to minus 60 degrees after formal start and stop. After that, it should be cooling to minus 80 degrees after formally opening and stopping for 8 hours. The cold plate freezer is prove to have normal performance if it can formally start and stop for more than 24 hours.

Items can be stored in the freezer after the operation follows to ultra low temperature freezer minus 80 degrees, which confirms that the freezer is normal. Principally, ultra low temperature freezer minus 80 degrees should stored the items of minus 60 degrees with no more than 1/3 of the box capacity. If the temperature of stored item is higher than minus 60 degrees, the temperature of freezer should be set nearly 3 degrees higher than the item temperature (that is, if the item temperature is 20 degrees, then the temperature of low temperature freezer should be set at 23 degrees) to ensure that the freezer is shut down and has formally started and stopped for 8 hours.

Note: ultra low temperature freezer minus 80 degrees is the equipment for preservation, so it is strictly prohibited to put too much of the relatively too hot items. It will keep the compressor working for a long time. In this condition, the temperature is too high to burn the compressor. And, items must be put in batches. The temperature should be cooling in phases until achieving the required low temperature.

If you want to know about more information besides these instructions of ultra low temperature freezer minus 80 degrees, please directly ask the professional technical personnel of Wuxi Guanya for help, the most reliable one in ultra low temperature freezer manufacturers.

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The Analysis Of Ultra Low Freezer'S Price

What are the characteristics and functions of ultra low freezer:

1. Ultra low freezer can prevent the precision of machine equipment from being influenced by the change of oil temperature in the process of operation.

2. Ultra low freezer can prevent the oily from being influenced by the change of the temperature. It can keep the oil in its original viscosity in order to keep the machine in a stable operating condition.

3. Ultra low freezer has the function of active alarming when there is something wrong, which can be a special method to timely reminding the users. In this way, the users can maintain the local where there is something wrong to avoid harming the accessories.

4. The control of ultra low freezer to the oil temperature is determined by the own temperature of the machine. The users can set the oil temperature according to the machine's own temperature to avoid the deformation of the machine that caused by thermal temperature.

5. The equipment for controlling temperature of display mode ultra low freezer can not be the polluted by any of the external impurities. It is simple, clean and easy to maintain. The device is so simple that it does not occupy any other space.

Though the ultra low freezer price is in a wide range, the quality is the first thing that customers care most. The functional characteristics of ultra low freezer mentioned above are general. However, the functional characteristics of the ultra low freezer which is more expensive and has good quality, are more comprehensive and better than that of the cheaper one with conciser maintenance.




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The Application of Cold Plate Freezer

The refrigeration system of cold plate freezer adopts secondary super-cooler technology with the rapid refrigeration and low limiting temperature. It uses imported brand name semi-hermetic piston compressors, semi-hermetic piston compound compressors and semi-hermetic screw compressors. The main brands of them are Bock, Bitzer, Copeland, Hanbell and Fusheng. The evaporator is KAORI plate heat exchanger, which has a small volume and high efficiency; it uses a full set of imported cold control (DANFOSS pressure controller, balance valve, expansion valve, solenoid valve, filter drier, Emerson oil extractor, ALCO sight glass, one-way valve, etc.); the cooling water return uses intermediate heat exchanger, which significantly improves the reliability and security of the system. It uses DANFOSS electronic expansion valve with high control precision; it uses Siemens PLC S7-200/300 PLC, LNEYA touch screen display to achieve automatic control operation and has graphical display, temperature recording U disk, failure warning record.

Factory test: each refrigeration unit in the factory does load testing more than 12 hours. The operation is very efficient and speedy. Everybody can choose what they want.

Cold plate freezer possesses high refrigeration speed. It is safe and reliable. The demand for refrigerators is relatively large in high-tech industries like petrochemical, medical, pharmaceutical, biochemical, freeze-drying, pharmaceutical and military. What’s more is the maintenance of cold plate freezer. It is necessary to replace the replacement parts in time to avoid some failures that will affect the usage of the cold plate freezer and to keep the device running in an efficient state. There are various cold plate freezer for sale at www.lneya.com.

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