Friday, December 28, 2018

Vocs exhaust gas condensation recovery unit refrigerant charging instructions

In the vocs exhaust gas condensation recovery process, the refrigerant is able to affect the operation of the vocs exhaust gas condensation recovery process, vocs exhaust gas condensation recovery treatment professional manufacturers reminded that in the case of the discovery of refrigerant loss, vocs exhaust gas condensation recovery treatment refrigerant charge Note work.

Connect the vocs exhaust gas condensing and recycling various equipments. When vacuuming until the pressure drops to 133.3Pa, close the three-way valve, remove the hose from the suction port of the vacuum pump, connect it to the R404 cylinder, and loosen it in the three-way. The hose on the valve.

Slightly open the handle on the R404 cylinder and fasten the loose hose to the three-way valve when the R404 refrigerant is ejected from the loose hose port (this is to clear the hose) Residual air).


Invert the R404 cylinder, the vocs exhaust gas condensation recovery compressor is energized, and the clamp current meter is placed in the power cord. Open the three-way valve handle and allow the compressor to quickly shut down after drawing in a portion of the R404 refrigerant. Observe the pressure of the pressure gauge and the clamp ammeter. With the pressure and current reduced, turn on the handle of the three-way valve. After filling a part of the R12 refrigerant, quickly close the handle of the three-way valve, and repeat this several times.

The pressure of the vocs exhaust gas condensation recovery treatment pressure gauge is stable at 0.03-0.05 MPa (0.02-0.04 MPa in winter and 0.05-0.07 MPa in summer). When the operating current of the clamp ammeter is stable at around 0.6-0.8A, the condenser dissipates evenly, and the temperature of the dry filter is slightly higher than the ambient temperature. The surface of the evaporator is evenly frosted and has a sticky hand. At this point, the vocs exhaust gas condensation recovery treatment refrigerant charge is appropriate, the capillary can be flattened with a sealing pliers, and then the capillary is pinched off with a wire cutter, and the fracture is welded with oxygen.

The vocs exhaust gas is condensed and recovered, and the weld is leaked with soapy water. According to the steps, the charging of the refrigerant in the vocs exhaust gas condensation recovery process can be basically completed, but it should be noted that the refrigerant should not be charged too much at one time to avoid malfunction.

LNEYA vocs exhaust gas condensation recovery treatment refrigerant is selected as an environmentally friendly refrigerant, different manufacturers of Freon refrigerant, we need to pay attention to its type when choosing.

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How to deal with the malfunction of Industrial Water Chiller System?

What's wrong with the Industrial Water Chiller System when it fails to cool down? 


Let LNEYA explain it to you below:

One reason is that the initial use of liquid chiller system fails to reduce the temperature, or there is something wrong with the installation of water-cooled chiller, cooling water tower, circulating water pump and pipe. It needs to be carefully checked according to the installation diagram.

The second reason may due to the pipes which are attached to various devices for a long time, and the impurities have accumulated in the water sources, resulting in smaller water flow. Therefore, we must clean the pipes between the devices.

Thirdly, If this problem occurs during the first use, it may cause by the wrong matching of the chiller and the problem of delivery. Because the industrial chiller has carried out 100% performance tests before getting out of the machine to ensure the normal operation of the machine unit.

Finally, If this is the case of a chiller that has been used for half a year or 1-2 years later, it may due to the leakage of Freon in the cooling system of the cold water machine. It is suggested to find out the leakage, weld it again and refrigerant. The heat exchanger of the water-cooled chiller is dirty and needs washing, and remember to clean it regularly after subsequent use.

The operation of any Industrial Water Chiller System is inseparable from the participation of refrigerant. So the shortage of refrigerant will affect the normal operation of the industrial chiller, and then result in the reduction of refrigerating capacity of the industrial chiller and even shut down, which is also the main reason for the shrinkage of the refrigerating capacity of the industrial chiller.

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Controller function of industrial chiller

In the use of industrial water chiller, the controller is the key point, so, do you know the function of the chiller temperature controller? Today, we're going to talk about it!


1. The flow switch of the chiller is used as the control or interruption protection of the fluid flow in the pipe. When the fluid flow reaches the setting value, the switch will be automatically cutoff (or switched on) the circuit.

2. Temperature controller
The temperature controller of the industrial chiller is used as the control or protection of the unit. When the temperature reaches the setting value, the switch will be automatically cut off (or switched on). In our products, the temperature control is often used to control the unit's downtime with the temperature of the tank. And some of them need to be used as temperature controller.

3. Oil pressure controller:
Cold water machine has a unique built-in type hydraulic system. It can ensure the compressor to maintain the best effect of lubrication without the oil pump. And oil separator adopts double filtering method, resulting good oil filter and maximized capacity of heat exchanger.

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Wednesday, December 26, 2018

Vocs gas condensing treatment equipment compressor maintenance instructions

The vocs gas condensing treatment equipment is an important equipment in the process of exhaust gas treatment. Among them, the compressor is one of the main components, and its performance is affecting the operating efficiency of the entire vocs gas condensation processing equipment, then the vocs gas condensation processing equipment is compressed. How to maintain and maintain the machine?

Since the compressor is an important part of the vocs gas condensation processing equipment, LNEYA uses some foreign and domestic brand compressors when configuring the brand selection, so the quality of the vocs gas condensation treatment equipment is more secure, but the necessary maintenance is also needed. Our customers go to implement.
The maintenance of vocs gas condensing treatment equipment generally includes routine maintenance, regular maintenance, regular inspection and precision inspection. Equipment lubrication and cooling system maintenance are also an important part of equipment maintenance. The vocs gas condensing treatment equipment compressor generally protects the equipment by general methods such as wiping, cleaning, lubrication, adjustment, etc., in order to maintain and protect the performance and technical condition of the equipment. There are four main requirements for maintenance:

1. Cleaning: The vocs gas condensation treatment equipment is clean and tidy inside and outside. There is no oil on all sliding surfaces, screw rods, racks, gear boxes, oil holes, etc., no oil leakage, no air leakage, debris and debris around the equipment. The dirt should be cleaned;

2. Neat: tools, accessories, and workpieces (products) should be placed neatly, and the pipelines and lines should be organized;

3. Good lubrication: refueling or oil change on time, continuous oil, no dry friction phenomenon, normal oil pressure, bright oil mark, smooth oil passage, oil quality meets requirements, oil gun, oil cup, linoleum are clean;

4. Safety: Obey the safe operating procedures, do not overload the equipment, the equipment's safety protection device is complete and reliable, and eliminate the unsafe factors in time.

The compressor of the vocs gas condensing treatment equipment usually pays attention to the maintenance and can make the compressor stable and standard operation, and can prevent the compressor failure of the vocs gas condensation processing equipment to a certain extent.

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Explosion Proof Refrigerator-Suitable for mechanical producing plant

LNEYA Explosion Proof Refrigerator is a kind of special refrigerator mainly used for the special industrial environment to keep dangerous goods which are difficult to preserve, volatile and inflammable and explosive. With the development of petroleum, chemical industry, medicine, aerospace, military and other fields, the use of explosion-proof refrigerators is more and more frequent. However, in terms of technology, performance, technology, design and so on, few can meet the national standard.

As to the use of the refrigerator for the first time, you must follow the instructions, otherwise, improper operation may cause some unnecessary accidents. So you should carry out in accordance with the corresponding instructions to the operation and avoid freely use the machine with high precision, in order to avoid the loss of function of the equipment, which will cause more dangerous results.

Also, it should be noted that you can run it for one to six hours with an empty container when electrifying for the first time, so as to make sure the equipment is at a normal state, after which you can put the objects in it. Meanwhile, If the machine stops when running, you should wait at least five more minutes before it can be turned on again, so as not to damage the compressor in a short time. These small details noticed the use of such high-precision instruments will be easier.


Microcomputer control, cascade temperature controller, digital temperature display, the regulation of unit 0.1℃, inside the temperature range -20 ℃ ~ -125 ℃ adjustable.France TECUMSEH compressor, Germany DANFOSS compressor, EMERSON compressor, automatic cascade refrigeration technology.

With self-diagnosis function, freezer overload protection, high-pressure switches, overload relays, thermal protection device and other security functions, and fully guarantee the use of safety.Three sealed mold layer of insulation, Extra-thick high-density polyurethane foam insulation layer, the effect of good insulation; Inline vacuum insulation panels.
Human design, more convenient and flexible.

Cooling and heating program controlled, meet cold treatment process requirements(can set 5 programs,
each program can edit 45 steps.)Low temperature automatic defrost (can be once per hour or use manual button to defrost), ensure it can work at low temperature for long time even the door is open and close frequently).

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How to clean air control system?

In order to respond to the requirements of the two types of society in the country, environmental protection and conservation have become increasingly important. Therefore, in order to extend the life of the product, it is still necessary to have some knowledge of maintenance, and the most important thing to maintain is to say clean. Here, Guanya Refrigeration introduces some small methods for cleaning the air cooling system:

More traditional methods are scraping and brushing. Sweep the place where you need to clean and the brush. The dirt that cannot be easily wiped off can be scraped with a sword. The second step is to use high-pressure water or chemical cleaning (mainly pickling), only to get high-pressure water or chemical water in the place where there is dirt to carry out chemical reactions, so that the dirt can be off.

However, this more traditional method does not generally clean thoroughly, and cleaning with chemical water may also cause corrosion to the equipment and damage the machine. After the chemical waste has been washed away, it will take a lot of money to process it. Therefore, cleaning agents can be used. This is also relatively environmentally friendly, safe, and thorough in cleaning. Generally, oxidation does not occur, which is beneficial to the service life of the air cooling system.
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Sunday, December 23, 2018

VOCS condensation price and maintenance instructions

The performance of VOCS condensing equipment is closely related to the VOCS condensing price. The proper VOCS condensing equipment is definitely superior in performance. What should be paid attention to in the maintenance of VOCS condensing equipment?

LNEYA VOCS condensing equipment is used in various industries. LNEYA's VOCS condensing equipment is famous for its superior quality, affordable price and perfect after-sales. However, if VOCS condensing equipment is used properly, proper maintenance is required. VOCS condensing equipment operates more efficiently. When using VOCS condensing equipment, it is necessary to pay attention to carefully check the circuit system of VOCS condensing equipment, whether the test voltage is normal, lack of phase, whether the running current is stable, and whether the interlocking control circuit is loose or aging.

Shell-and-tube condensers and finned condensers are attached to the condenser due to the impurities in the water. If the time is too long, the heat dissipation effect will be affected. After the maintenance of the machine, the test machine will run and the total calibration will be performed to test whether the superheat is normal. Whether there is abnormal sound in each part.

Check whether the VOCS condensing equipment drying filter and expansion valve are normal, whether there is any blockage. If necessary, replace it. If it is cleaned regularly, install a filter at the water source to prevent trees and debris from entering the pipeline. Check the refrigeration compressor of the VOCS condensing unit and insulate the compressor motor coil. Check the refrigeration oil and lubricating oil system of the VOCS condensing equipment. If there is any shortage or mess, it should be replenished or replaced.

The maintenance of VOCS condensation price is more important. LNEYA recommends that users do maintenance work in a timely and effective manner, and strive to achieve VOCS condensation to achieve efficient operation.

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Vocs condensation adsorption technology energy control instructions

The vocs condensation adsorption technology has been developed under the current trend of environmental protection. The LNEYA vocs condensation adsorption technology uses condensation adsorption technology. In order to save operating costs, it is recommended to do energy control.

In order to save the cost of using vocs condensation adsorption technology, users need to learn to control its energy consumption when using vocs condensation adsorption technology. To reduce the energy consumption of vocs condensation adsorption technology, we first need to provide good vocs condensation adsorption technology. Electricity environment. For example, the voltage of the electricity environment is relatively low, and the vocs condensation adsorption technology equipment must maintain the stable operation efficiency, which inevitably increases the consumption of electric energy, and the excessive voltage will inevitably lead to the operation failure of the vocs condensation adsorption technology.

It can provide safe voltage use conditions for vocs condensation adsorption technology, which is the basic condition for reducing the energy consumption of vocs condensation adsorption technology. It is suitable for voltage environment and effectively reduces the energy consumption of vocs condensation adsorption technology. If you want to control the performance of vocs condensing adsorption technology and maintain the safety and stability of the system, you need to develop a specific use plan, regardless of any equipment without a specific plan, will put the system in an overload state, which will seriously affect vocs condensation The quality of the adsorption technology.

Regular maintenance and repair of vocs condensation adsorption technology can maintain the stability of vocs condensation adsorption technology, no matter the lack of maintenance and repair of any equipment, will reduce the effectiveness. Of course, this maintenance is purposeful maintenance, for example, it can start from the system. As long as the maintenance work is done, the equipment can be used better and the efficiency will be greatly improved.

Since the environment has a great influence on the vocs condensation adsorption technology, while ensuring the quality, we must also pay attention to the environmental impact of the vocs condensation adsorption technology, and must not affect the environment when used.

The operating consumption and power of vocs condensing adsorption technology affect the operating cost of vocs condensing adsorption equipment. Therefore, enterprise vocs condensation adsorption technology must do a good job of reducing energy costs.

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Description of operation characteristics of fully enclosed refrigeration and heating machine

In the petroleum, chemical, and pharmaceutical industries, fully enclosed refrigeration and heating integrated machines are needed by many enterprises. However, when users choose to make choices, they must understand their operating characteristics. LNEYA's refrigeration and heating integrated machine has been in the industry. The advanced position and operational advantages are also very obvious.

Typical application of a fully enclosed refrigeration and heating machine:

Fully enclosed refrigeration and heating machine for dynamic constant temperature control of high pressure reactor cold and heat source, dynamic constant temperature control of double-layer glass reactor cold and heat source, dynamic constant temperature control of double-layer reactor cold and heat source, constant temperature control of microchannel reactor cold and heat source , small thermostat control system, steaming system temperature control, material low temperature and high temperature aging test, combined chemical cold source heat source constant temperature control, semiconductor equipment cooling heating, vacuum chamber cooling heating constant temperature control.

Advantages and functions of a fully enclosed refrigeration and heating machine:

The fully enclosed refrigeration and heating unit has a temperature range from 120 ° C to 350 ° C. It has excellent performance, high precision and intelligent temperature control.

Fully enclosed refrigeration and heating integrated machine with high cooling power from 0.5 to 1200 kW, high production stability and repeatability results, as well as multi-function alarm system and safety functions, using plate heat exchangers, ducted heaters to improve heating and Cooling rate.

Fully enclosed refrigeration and heating machine is equipped with 7-inch, 10-inch color TFT touch screen graphic display, magnetic drive pump, no shaft seal leakage problem, fully enclosed system, extended thermal fluid life, very wide temperature range, no need to replace liquid medium.

The fully enclosed refrigeration and heating machine has a high temperature cooling technology, which can directly cool down from a high temperature of 300 degrees.
The principle and function of a fully enclosed refrigeration and heating machine has many advantages for the user: because only the heat transfer medium in the expansion chamber is in contact with the oxygen in the air (and the temperature of the expansion tank is between room temperature and 60 degrees). It is possible to reduce the risk of the heat transfer medium being oxidized and absorbing moisture in the air. No heat transfer medium evaporates at high temperature, and continuous control can be achieved with -80 to 190 degrees, -70 to 220 degrees, -88 to 170 degrees, -55 to 250 degrees, and -30 to 300 degrees without pressurization. temperature.

Different enterprise users have different temperature requirements for fully enclosed refrigeration and heating integrated machines. Specifically, they should be carefully selected according to their own working conditions. If you do not know how to choose, you can consult with professional manufacturers of refrigeration and heating machines.


Web:https://www.lneya.com
Mail:sales@cnzlj.com

Thursday, December 20, 2018

Accessories and accessories for heating and cooling systems

The selection of heating and cooling system is quite important, not only price and temperature control, but also quality should be taken into consideration. Besides, you should also pay attention to the accessories of heating and cooling system.












Filter:
The installation of the filter in the pipeline is necessary, for it can effectively prevent the pipeline blockage, the deterioration of heat conduction media and other problems. The negligence about it may cause property loss and safety accidents. What's more, the filter needs to be cleaned or replaced regularly.

Pressure gauge:
The pressure gauge is the key in the cooling and heating equipment. It closely records the pressure of the pipeline and discovers the pressure state of the pipeline in time. It can find the high and low pressure problems in the pipeline in real time and modify it.

Pipe bypass:
The outlet and inlet of heating and cooling system should be connected by three-way and manual valve, then make a proper diversion according to piping pressure.

Manual valve:
Put manual valves on the connection of heating and cooling system and both ends of the components installation, thus the heating and cooling system can be easily disassembled in maintenance, so that reducing the loss of heat conduction medium, and the related valves can be closed in time when in trouble.

The parts of the heating and cooling system are not fully included above. In order to ensure the stable operation of the equipment, we should take full consideration of the temperature range, the pressure range, the use of the environment and other specific knowledge of the components.

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LNEYA Low temperature thermostatic bath instructions

Low temperature thermostat is widely used in petroleum, chemical industry, electronic instruments, physical, chemical and biological engineering, medicine and health, life sciences, food industry, physical testing and chemical analysis and research departments, universities, enterprises and production quality inspection departments, for the user to work to provide a heat source temperature field controlled, uniform and constant constant temperature test, or test on the test samples or products, but also can be used as direct heating or cooling and heating or cooling cooling or heating.

Low temperature thermostatic bath is widely used to provide a user with a controlled and uniform temperature field source, a constant temperature test for a test sample or a produced product be used as a heat source or cold source for direct heating or cooling or auxiliary heating or cooling.


1. The liquid medium must be added first in the low temperature or constant temperature bath before using, otherwise, the heater will be damaged when the electricity is working. The liquid surface of the medium should be lower 30mm than the working plate.

2. The selection of liquid medium in low temperature and constant temperature bath should be in accordance with the following principles:

3. When the working temperature is at 5℃~85 ℃, choose water as the liquid medium.

4. When the working temperature is at 85℃~95 ℃, choose 15% glycerol solution as the liquid medium.

5. When the working temperature is below 5 centigrade, choose alcohol or frozen liquid as the liquid medium.

6. When the cryogenic thermostat switch is closed, the refrigeration switch should be opened for a 10~20 minutes interval (depending on the ambient temperature).

7. Low temperature constant temperature bath power: 220V50Hz, the power of the power supply should be greater than the total power of the instrument. The power supply must have a good "grounding" device.

8. The low temperature and constant temperature bath should be placed in the dry and ventilated place, and there are no obstacles in the 300mm around the instrument. When low temperature and constant temperature bath temperature is low, don't put hands into the slot, in order to prevent frost injury. After using, all switches should be closed and the cut the power off. Clean the Low Temperature Thermostat Bath frequently and keep the work table and the operation panel clean.

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