Ultra-low temperature refrigeration circulator condenser maintenance instructions

Maintenance is an important task for users of ultra-low temperature refrigeration circulators. Wuxi Guanya LNEYA reminds that the maintenance of the condenser is a relatively important task in its maintenance work. So what should be paid attention to for maintenance?

The condenser of the Wuxi Guanya LNEYA ultra-low temperature refrigeration circulator has a long running time, and the performance will gradually decrease, which will make the condensing pressure of the system higher than the condensing pressure during normal operation. In order not to degrade the properties of the condenser, it is necessary to periodically maintain the condenser.

For the ultra-low temperature refrigeration circulator water-cooled condenser, the problem is mainly to remove scale. The cleaning cycle depends on the water quality. The water quality is poorly cleaned at least once a year. The water quality is good and can be cleaned once every 2 to 3 years.

The condensers used in the ultra-low temperature refrigeration cycle are mainly air-cooled condensers and water-cooled condensers. Depending on the type of condenser, the way to clean the scale is different. The air-cooled condenser uses air as the cooling medium. Due to the dust in the air, some dust will adhere to the outer surface of the condenser fin. If the time is long, the heat dissipation effect of the condenser will be deteriorated, especially in a place with a bad environment, so it should be cleaned regularly. When the condenser of the ultra-low temperature refrigeration circulator is cleaned, if the simple dust can be blown clean with the compressor air, if there is a lot of dirt, the heat-dissipating tube and the fin should be cleaned with a non-corrosive cleaning agent to improve the heat dissipation effect. purpose.

In addition to the maintenance of the condenser, the ultra-low temperature refrigeration circulator needs to pay attention to the maintenance work of other accessories, so the user needs to pay attention to the overall maintenance work.

LNEYA ultra-low temperature bath safe operation instructions

Ultra-low temperature thermostats use more equipment in the pharmaceutical and chemical industries. At the beginning of the new year, each operator needs to pay attention to safety operations, and safely and efficiently operate ultra-low temperature thermostats.

Check the machine for damage during installation of the ultra-low temperature bath. Choose a suitable place for installation and future maintenance. The installation site must be a floor, mounting mat or foundation with a level of 6.4 mm and can withstand the operating weight of the unit. It should be placed in a machine room with a room temperature of 4.4-43.3 ° C. There should be enough space around and above the unit for routine maintenance work. At the end of the unit, a pipe space for cleaning the condenser tube bundle should be left, or a door hole or other suitable hole can be used.

Select the water pipe of the appropriate diameter of the ultra-low temperature constant temperature tank, the cooling system and the cold water system of the unit during high-power operation, and connect them correctly. For ordinary applications, the water flow speed through the evaporator and the condenser is allowed to be 1.0-3.6m/s. between. The water flow should be stable under any load conditions. All chilled water and cooling water piping should be designed and installed in accordance with conventional methods. The chilled water pump should be located on the inlet pipe of the unit to ensure positive pressure and flow within the unit. The piping should be provided with a damping tube to ensure proper flexibility and to prevent the evaporator water from being drained when the pump is shut down.

The pipe should have a strong support independent of the cryostat group to prevent stress from being applied to the components of the cryostat group. The hangers are set up to facilitate pipe alignment. In order to reduce noise and vibration, it is better to install a vibration isolator on the pipeline. In order to use the ultra-low temperature thermostatic tank group cost-effectively, it is recommended that the water treatment expert analyze the water supply quality of the evaporator and the condenser. The bad water quality will cause the scale to affect the transmission. Heat, or corrosion deposits, breeding organic matter, affecting the performance of the unit, increasing operating and maintenance costs.

In general, proper water treatment and periodic cleaning of the tube bundles maintain their good performance. If existing water quality conditions cannot be improved by appropriate methods, then consideration should be given to allowing the bundle to have a large fouling factor or to specify a specific Structural materials, after the test leak is completed, all the nozzles must be rust-proof.

During the use of the ultra-low temperature bath, you need to understand the instruction manual to avoid safety accidents during operation.

Web：https://www.lneya.com

Mail：sales@cnzlj.com

TEL:+86-17751497523

LNEYA super deep crying treatment using common sense

For ultra-deep cold processing equipment, failure to pay attention to the use of the equipment may cause equipment failure.

Before using the water-cooled ultra-cry cryogenic treatment, it should be checked whether all the valves between the equipments are open, whether all the water tanks are filled with water, whether the fans are reversed, and whether the circulating water pump is running in the correct direction. Open the super deep crying treatment main power supply (the standard power supply is 3-phase five-wire system 380V 50HZ), specifically the water-cooled ultra-deep cold treatment front nameplate. Wuxi Guanya LNEYA reminds everyone that the power supply for ultra-deep cooling must be stable to avoid burning the unit or compressor and pump motor.

First open the ultra-deep cooling treatment cooling switch, then turn on the chilled water pump switch. Since the compressor has a delayed start function, the compressor will automatically run after the delay. At this time, pay close attention to the front control panel to observe the temperature change, as appropriate according to the cooling demand. Perform temperature adjustment. Water-cooled ultra-cry cryogenic treatment During normal operation, the unit operation data should be recorded periodically to facilitate the identification of problems based on data as soon as the unit fails. The ultra-cryogenic treatment itself is provided with multiple protection devices. Once there is a fault, it will start to protect and automatically stop. After the fault is removed, press the reset to operate normally.

When the super-cryogenic treatment is not used, the unit, water pump, insulated water tank and water in the pipeline should be drained, and the equipment should be covered and protected to avoid dust and other debris. Regarding the maintenance of ultra-deep cold treatment, this cannot be ignored. It is necessary to clean the condenser and evaporator after running for half a year. It is recommended to carry out maintenance of the whole machine after one year of operation, and keep it clean and clean regularly.

The instruction manual of the ultra-cryogenic treatment equipment and regular inspection and maintenance are all parts that the user needs to know in order to make the equipment run more efficiently.

Web：https://www.lneya.com

Mail：sales@cnzlj.com

Tel：+86-17751497523