The heating cooling circulator can be used in many chemical pharmaceuticals and laboratories. Then, how to solve the failures of the heating cooling circulator?
Failure of circulating pump
The failure of the circulating pump is generally the heat overload of the circulating pump. There are 4 main reasons for this failure:
1. The external circulation pipeline is too long. It is suggested to shorten the external circulation pipeline, reduce the bending of the external circulation pipeline, and then click the Reset button of the electric cabinet surface heat relay;
2. The circulating pipe is blocked. It is suggested to check the degree of cleanliness of the circulating pipe, install a filter, and then click the Reset button of the electric cabinet heat relay;
3. The circulation pump voltage is too low. It is suggested to measure whether the circulation pump voltage is in line with the prescribed range, improve the voltage environment, and then click the Reset button of the electric cabinet heat relay;
4. The regulating current of the heat relay is too small. It is suggested to measure the pump current, compare the heat relay range, turn up the heat relay current properly with the cross screwdriver, and then click the Reset button of the electric cabinet heat relay.
Failure of sensor
The great possibility of sensor failure is the wiring error. At this time, check the wiring in time, and we should pay attention to two kinds of situations, one is the sensor is short-circuited or the temperature is < -160 ℃, the other is the sensor is open circuited or the temperature is > 349℃.
If the sensor is short-circuited or the temperature is <-160 ℃, it may be the fault of the sensor itself. At this time, change the sensor (there is a standby sensor in the equipment line slot), if the sensor connection is wrong, it is suggested to check the connection condition (the control circuit diagram) to correct.
If the sensor is open circuited or the temperature is > 349 ℃, it should be the fault of the sensor itself. At this time, replace the sensor in time (there is a standby sensor in the equipment line slot). It is necessary to pay attention to whether the temperature is too high and beyond the range. If the equipment is out of electricity, check the power supply of the equipment.
The above two failures of the heating cooling circulator are relatively simple. I believe that you can quickly solve these failures with these tips.
Contact LNEYA for more dynamic temperature control equipments.
Friday, August 10, 2018
Thursday, August 9, 2018
Ultra Low Temp Freezer DW -120℃~-150℃
Product Description
Description: Ultra-low temperature freezer mainly used for scientific research, special materials of low-temperature test and preservation; freezing of red blood cells, white blood cells, skin, bacteria, semen, biological products, ocean products and electric, reasonable ultra low temperature freezer price.
Knowledge Center
As a cryogenic storage equipment, the cryogenic refrigerator is widely used in fields like medical and health, scientific research, disease control, and inspection, etc. Since the birth of China's first ultra-low temperature refrigerator in 2006, China's ultra low temperature refrigerator has developed rapidly through the development of more than ten years, especially the rise of the biologic sample library. Many native low-temperature refrigeration brands have entered the field of ultra-low temperature refrigerators. The brands in the market are quite a mixed bag, so here are two suggestions for you to choose cryogenic refrigerators from Guanya.
1. Selection for refrigeration mode: Double stage self-cascade refrigeration
The cooling mode is the core of the ultra-low-temperature refrigerator. Stability and long life are the most important. Double cascade refrigeration is a mature refrigeration mode recognized by the academic community. This refrigeration mode is adopted by almost all ultra-low-temperature brands at home and abroad. The two compressor high temperature and low-temperature respective division of labor, each operating under the best conditions, which makes the whole operation stable and extend the service life of the compressor.
2. Temperature uniformity: The simple numbers are not enough
Except the uniformity temperature number, we need to see the method of detection and whether it has the report of the Quality Inspection Center. The most stringent detection method is stationing 20 points in the box. The leading index of the industry is active about 7℃ at any point in a little box, which means that the range of variation is ±3.5 ℃. If the index beyond this, it is likely to be a registration test with only 4 test points and just take the average number of tests.
Contact LNEYA for more dynamic temperature control equipment.
Wednesday, August 8, 2018
Several Attention Aspects of Ultra Low Temperature Freezer
The performance of ultra low temperature freezer will be reduced naturally due to long-period application in all fields. Thus, Guanya Refrigeration Technology Co., Ltd, leader in ultra low temperature freezer manufacturers has to remind every user to maintain the freezer regularly. So what aspects should be paid attention to?
Because ultra low temperature freezer groups different categories, the maintenance should be varied, among which air-cooled freezer uses air as cooling medium. As the air contains dust within the environment where ultra low temperature freezer stays, some of dust will coagulate on the surface of the fins of freezer. As time goes by, it worsens the heat dissipation effect, especially in rather tough conditions. Therefore, periodical cleaning should be carried out.
The cleaning method of ultra low temperature freezer: using the instruments like compressor are able to clean the dust. If much more dirt is inside, detergent without any corrosive effect can clean heat radiating tube and fins, improving the heat dissipation effect.
As for ultra low temperature freezer, the foundation lays on the incrustation. The cleaning period is decided by water quality, which should be cleaned at least one year due to bad quality; otherwise, two or three years are acceptable. Small ultra low temperature freezer is equipped with extensive-type water cooling freezer can take advantage of acid.
The concrete operational method of ultra low temperature freezer is to demount the freezer, discharge the water, and infuse 10% dilute sulphuric acid solution into it until the solution flows out the water outlet. The dilute sulphuric solution can be discharged after 20 to 30-minute stop over the freezer, and you should repeat this process twice or three times. After that, the connecting pipe between cooling water tube and freezer should be installed. Open cooling water valve to wash for 10 to 20 minutes, and scale prevention and cleaning claim the end.
Of course, when purchasing ultra low temperature freezer, you should keep a watchful eye on the performance and brand of freezer, ensuring a branded one is chosen for better use. Naturally, regular maintenance is required.
Because ultra low temperature freezer groups different categories, the maintenance should be varied, among which air-cooled freezer uses air as cooling medium. As the air contains dust within the environment where ultra low temperature freezer stays, some of dust will coagulate on the surface of the fins of freezer. As time goes by, it worsens the heat dissipation effect, especially in rather tough conditions. Therefore, periodical cleaning should be carried out.
The cleaning method of ultra low temperature freezer: using the instruments like compressor are able to clean the dust. If much more dirt is inside, detergent without any corrosive effect can clean heat radiating tube and fins, improving the heat dissipation effect.
As for ultra low temperature freezer, the foundation lays on the incrustation. The cleaning period is decided by water quality, which should be cleaned at least one year due to bad quality; otherwise, two or three years are acceptable. Small ultra low temperature freezer is equipped with extensive-type water cooling freezer can take advantage of acid.
The concrete operational method of ultra low temperature freezer is to demount the freezer, discharge the water, and infuse 10% dilute sulphuric acid solution into it until the solution flows out the water outlet. The dilute sulphuric solution can be discharged after 20 to 30-minute stop over the freezer, and you should repeat this process twice or three times. After that, the connecting pipe between cooling water tube and freezer should be installed. Open cooling water valve to wash for 10 to 20 minutes, and scale prevention and cleaning claim the end.
Of course, when purchasing ultra low temperature freezer, you should keep a watchful eye on the performance and brand of freezer, ensuring a branded one is chosen for better use. Naturally, regular maintenance is required.
Contact LNEYA for more info.
Plate Freezer
Product Description
Information: Refrigeration system high and low-pressure protection and display; Condensing temperature display and protection; A variety of fault alarm (over-temperature alarm, sensor alarm, high-pressure alarm, compressor overheating alarm;) Boot time delay. Cold plate freezer for sale is in high quality.
Contact LNEYA for more dynamic temperature control equipment.
Ultra Low Temp Freezer DW -120℃~-150℃
Product Description
Description: Ultra-low temperature freezer mainly used for scientific research, special materials of low-temperature test and preservation; freezing of red blood cells, white blood cells, skin, bacteria, semen, biological products, ocean products and electric, reasonable ultra low temperature freezer price.
Knowledge Center
As a cryogenic storage equipment, the cryogenic refrigerator is widely used in fields like medical and health, scientific research, disease control, and inspection, etc. Since the birth of China's first ultra-low temperature refrigerator in 2006, China's ultra low temperature refrigerator has developed rapidly through the development of more than ten years, especially the rise of the biologic sample library. Many native low-temperature refrigeration brands have entered the field of ultra-low temperature refrigerators. The brands in the market are quite a mixed bag, so here are two suggestions for you to choose cryogenic refrigerators from Guanya.
1. Selection for refrigeration mode: Double stage self-cascade refrigeration
The cooling mode is the core of the ultra-low-temperature refrigerator. Stability and long life are the most important. Double cascade refrigeration is a mature refrigeration mode recognized by the academic community. This refrigeration mode is adopted by almost all ultra-low-temperature brands at home and abroad. The two compressor high temperature and low-temperature respective division of labor, each operating under the best conditions, which makes the whole operation stable and extend the service life of the compressor.
2. Temperature uniformity: The simple numbers are not enough
Except the uniformity temperature number, we need to see the method of detection and whether it has the report of the Quality Inspection Center. The most stringent detection method is stationing 20 points in the box. The leading index of the industry is active about 7℃ at any point in a little box, which means that the range of variation is ±3.5 ℃. If the index beyond this, it is likely to be a registration test with only 4 test points and just take the average number of tests.
Contact LNEYA for more dynamic temperature control equipment.
Tuesday, August 7, 2018
Precision Chiller
Product Description
System Introduce
Typical Applications:
Semiconductor Manufacturing Device Cooling:
Single chip cleaning, printing machine, automatic clamp installation equipment, spraying equipment, ion plating equipment, etching device, single-chip processing device, slicing machine, packaging machine, the temperature of the developer management, exposure device, magnetic part of the heating device, etc.
Laser Equipment Cooling:
Laser processing, heating part of the welding machine, laser marking device, chemical reaction plant, carbon dioxide laser processing machine, etc.
Other Industries Cooling:
Plasma welding, automatic packaging machine, mold cooling, washing machine, gold-plated groove, resin molding machine, precision grinding machine, injection molding machine of molding parts, etc.
Analysis Of Testing Machine Cooling:
Electronic microscope, ICP lighting light source part of the spectrum analysis device, heating part of the spectrophotometer, X-ray analytical device of heat source, automatic pulse heating part of the banner, the light source of atomic absorption spectrophotometer, etc.
Features of precision chiller:
1. The temperature of heat transfer fluid can be adjustable.
2. Adopt ASPERA,DANFOSS,MANEUROP,COPELAND etc. Brand compressor, stable performance and can work continuously.
3. Human design, more convenient and flexible.
4. Microcomputer temperature controller, temperature figures display, the adjustable unit is 0.1℃, the temperature range is 7℃~30℃.
5. Use hot gas bypass, save energy and improve the control precision.
6. A variety of fault alarm (overtemperature alarm, high pressure alarm, sensor alarm, compressor overheat alarm)
7. Power on delay protection.
8. All parts are safety grounding.
9. High-performance circulating pump can guarantee 24 hours continuously running a day.
Technical Parameter
Contact LNEYA for more dynamic temperature control equipment.
High-Low Temp. Test Chamber
Product Description
Performance characteristics of low temperature test chamber：
1. In the refrigeration system, the condensation adopts air cooling mode, which has a wide temperature control range, which can meet the user's various needs.
2. With a unique balanced temperature control method, with stable and balanced heating capacity, high precision and high stable temperature control can be carried out;The temperature is displayed by touch screen, easy to read, precise and convenient.
3. Adjust the temperature error value to meet more accurate test conditions.With the setting of temperature, it is easy to operate the refrigeration circuit.
4. The box door is equipped with a large observation window, which can observe the test status of the test sample at any time.
5. with functions of high temperature on, can open the refrigerator when the temperature in the oven to 150 ℃, facilitate continuous round-trip experiment was carried out between the high temperature and low temperature.
6. Self-diagnosis function, overload protection of refrigerator, high pressure switch, overload relay, thermal protection device, etc., to ensure the safety of use.
7. Use the multi-wing fan to supply the wind with strong air circulation and avoid any dead Angle, so that the temperature can be evenly distributed in the test area.
8. Wind circulation is designed with wind return wind. The wind pressure and wind speed are in accordance with the test standard.
9. Temperature rise, cooling and system complete independence can improve efficiency, reduce test cost, increase life span and reduce failure rate.
Technical Parameters：
Contact LNEYA for more dynamic temperature control equipment.
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