Wuxi Guanya Refrigeration Technology co., ltd

How to remove ultra-low temperature refrigerator shell and tube condenser scale?

Low-temperature refrigerator ultra-low temperature condenser scale removal In general, we have three methods, namely mechanical descaling, chemical pickling and descaling, and electronic magnetic water separator descaling. Low-temperature refrigerator ultra-low temperature mechanical descaling is the use of soft shaft washing tube The method for descaling the condenser of the cooling pipe is particularly suitable for a vertical shell and tube condenser. The specific operation is to first withdraw the refrigerant in the condenser, and then close all the valves connected to the refrigeration system of the condenser to ensure the normal supply of the cooling water of the condenser, and then use the umbrella gear-shaped scraper coupled with the soft shaft washer. The riser of the condenser is rotated and descaled from top to bottom, and the circulating cooling water is used to cool the heat generated by the friction between the scraper and the pipe wall, and the dirt, rust and the like which are removed are flushed into the pool. Low-temperature refrigerator ultra-low temperature shell-and-tube condensers need to pay attention to prevent damage to the pipe wall during cleaning, to avoid the failure of low temperature refrigerators.

Followed by the chemical pickling and descaling method, the low-temperature condenser of the low-temperature refrigerator is cleaned by using the prepared weakly acidic descaling agent to remove the scale and improve the heat transfer efficiency of the condenser. First, the descaling is prepared in the pickling tank. Solution, start the pickling pump, so that the detergent solution is circulated in the condenser tube for 24 hours, after which the scale is basically removed after 24 hours, then stop the pickling pump work, then use a round steel brush Pull the brush back and forth in the pipe wall of the condenser pipe, rinse the scale and rust with clean water, and then repeatedly clean the detergent solution remaining in the pipe with clean water until it is thoroughly clean. The chemical pickling and descaling method is suitable for vertical and lying. Shell and tube condenser.

How to remove the scale of the shell-and-tube condenser in the ultra-low temperature of the low-temperature refrigerator In addition to the above-mentioned method 2, there is an electronic magnetic water descaling method to treat the calcium, magnesium and other salts in the cooling water flowing through the condenser in a positive and negative ion state at normal temperature. Dissolved in water, can effectively prevent the formation of new scale, but also can remove the original scale, and because the expansion coefficient of the steel pipe and scale in the condenser is different, the original scale gradually cracks, and the magnetized water is uninterrupted. The ground invades its cracks, destroying the adhesion of the original scale, making it gradually loose and falling off on its own and continuously taken away by the circulating cooling water.

Once the low-temperature condenser of the low-temperature refrigerator has scale, the thermal resistance will continue to increase, resulting in a continuous decrease in the heat transfer coefficient, which makes the refrigeration effect worse and worse. Therefore, once the condenser is found to have scale, it must be checked in time. Remove scale.
Related News
  • LNEYA Is Exhibiting At Achema 2018

    LNEYA Is Exhibiting At Achema 2018

    January 11, 2018​The LNEYA Group will participate in the ACHEMA -World Forum and Leading Show for the Process Industries,Frankfurt am Main, Germany.view
  • Approaching LNEYA 5 Main Products

    Approaching LNEYA 5 Main Products

    January 11, 2018Industrial Chiller:Industrial Chiller varies from dynamic temp. Special Chiller:Special Chiller consist of Multi-reactor chiller (TCU).Environmental Chamber:The test object is connected to a testing adapter. Industrial Freezer:Industrial freezer consist oview
  • The Analysis Of Ultra Low Freezer'S Price

    The Analysis Of Ultra Low Freezer'S Price

    July 4, 2018What 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 proce...view
  • The Application of Cold Plate Freezer

    The Application of Cold Plate Freezer

    July 4, 2018The 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 comp...view
  • 2018 Automotive Testing Expo

    2018 Automotive Testing Expo

    September 11, 2018Automotive Testing Expo 9.25-9.27view
  • The Analysis Of How To Maintain The Low Temperature Circulator In Daily Life

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

    July 4, 2018Guanya 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, extend...view
Related Products
  • SLJ -110℃~-150℃

    SLJ -110℃~-150℃

    January 11, 2018Temperature ranges from - 5 ~ - 150 ℃, can meet different temperature; Adopt environmental protection refrigerants; Famous brand semi-closed piston compressor, semi-closed bipolar piston compressor, semi-hermetic screw compressor, main brand are BOCK.view
  • Single Fluid Heat Transfer System SR

    Single Fluid Heat Transfer System SR

    April 10, 2018Working temperature range from -25℃to 200℃, other temperature range need to set to the widest temperature range(-50℃to 250℃) Centralized control of 2~20 reactors, each reactor's and jacket temperature can be set independently. One system control multipleview
  • Reactor Temperature System ZLF

    Reactor Temperature System ZLF

    April 10, 2018A set of cooling heat exchanger, heat exchanger, through proportional adjusting valve control cold heat into the heat exchanger, then through the uniform medium input to the reactor jacketed to do heat exchange and temp. Control, system has inside expansiview
  • LT -45℃~30℃

    LT -45℃~30℃

    April 10, 2018Low Temperature Cooling Chiller LT model: LT-5018N,LT-5040N,LT-5062N,LT-5090N,LT-50A1N,LT-50A2N; Medium Temperature Range: -45℃~30℃. ASET multifunctional controller, control outlet temperature of water tankview
  • TES -45℃~250℃

    TES -45℃~250℃

    February 28, 2019-45℃~+200℃ 2.5kW~25kW ±0.3℃view
  • TES -85℃~200℃

    TES -85℃~200℃

    February 28, 2019Temperature control range:-85 ° C ~ 200 ° CPower range:2.5kW~25kWTemperature control accuracy:±0.3°CModelTES-8525WTES-8555WTES-85A10WTES-85A15WTES-85A25WTemp. Range-85℃~200℃-85℃~200℃-85℃~200℃-85℃~200℃-85℃~200℃Heating P...view
Tel: + 86 18751545184
E-mail: sales@cnzlj.com
Add: No.203, Hongyun Road, Hongshan Street, Optoelectronics Park, Xinwu District, Wuxi City, Jiangsu Province, China
code chat