Battery pack cooling water machine Chiller use precautions

The battery pack cooling water machine Chiller is used for the new energy battery pack cooling system. The user needs to pay attention to avoid misuse during operation, which causes the battery pack cooling and circulating water machine Chiller to malfunction.

Battery pack cooling circulating water machine Chiller's electrical system needs to pay attention to the electrical control system including power local and automatic control local, the power supply is partially through the contactor, supply power to the compactor, fan, water pump, etc., the automatic control part includes the thermostat, pressure Maintenance, delay, relay, overload maintenance, etc. are combined with each other to achieve automatic start and stop, maintenance and other functions according to water temperature.

The liquid reservoir device is in direct communication with the discharge pipe of the condenser after the condenser, and the refrigerant liquid of the condenser should flow unimpeded into the liquid reservoir, so that the cooling area of the condenser can be fully utilized. On the other hand, when the heat load of the evaporator changes, the demand for the refrigerant liquid also changes. At this time, the reservoir functions to regulate and store the refrigerant. The battery pack cooling water machine Chiller must prevent moisture and dirt (oil, iron filings, copper filings) from entering the refrigeration cycle, if the moisture in the system is not cleaned, when the refrigerant passes through the throttle valve (thermal shrink valve or In the case of a capillary tube, moisture may solidify into ice due to pressure and temperature drop, which may block the passage and affect the normal operation of the refrigeration installation.

Before the battery pack cooling circulating water machine Chiller is in operation, it is necessary to pay attention to connect the power cord (5m) connected to the control unit to the power supply when connecting the power supply. At this time, it is necessary to connect the ground terminal ( E) Otherwise, there is a risk of electric shock due to misuse and water leakage. The machine water supply needs to pay attention to close the water tank drain valve, open the water source valve, water supply valve, cold water output valve, cold water input valve. Regarding the water temperature and flow rate of cooling water and refrigerant water, the user should follow the data provided on the technical parameter table, otherwise the machine will not work properly.

The above is to learn more about some use points before use, avoid misunderstandings, and use the battery pack cooling water machine Chiller more efficiently. You can contact LNEYA when you need to know the device parameters or even the device video. Email address: sales@cnzlj.com

Factors affecting the cooling capacity of the chiller of the chemical reactor cooling system

There are various types of chillers, such as air-cooled chillers, water-cooled chillers, etc. But no matter what the chiller is, there are some factors that affect the cooling capacity of the chiller.
                   

A cooler is an energy-saving device that is cooled by air compression or refrigerant circulation. The following factors affect the cooling capacity of the chiller:

1. Compressor power: The higher the power, the higher the cooling capacity. Depending on the size of the model, choose a different type of compressor. For example, a small chiller is a piston type, a large type is a spiral type, a centrifugal type, or the like.

2. Water temperature (different evaporation temperature, different cooling capacity): The higher the water temperature, the greater the cooling capacity, the lower the water temperature, and the smaller the cooling capacity.

3. Pump power: The amount of water circulation directly affects the heat transfer rate.
The form of the evaporator and the condenser are divided into a water tank coil test, a shell tube type, a stainless steel plate type and the like.

4. Heat transfer material: The copper tube has the best heat transfer effect.

The above are factors that affect the cooling capacity of the chiller. If you have any questions about the chemical reactor cooling system, please feel free to contact LNEYA.COM/sales@cnzlj.com

Heat transfer oil secondary circulation system use instructions

The thermal oil secondary circulation system is equipped with various instruments and equipment for temperature control. When using it, you need to pay attention to its safety knowledge and safer operation.

LNEYA heat transfer oil secondary circulation system uses branded fully enclosed compressors with advanced performance and reliable quality. The relays, protectors, capacitors and other devices used in the equipment are all original high-quality equipment, ensuring the reliable performance and service life of the heat transfer oil secondary circulation system, integrating cooling, heating and circulation, and the power distribution of the heat transfer oil secondary circulation system is reasonable. Save space.

The heat transfer oil secondary circulation system should be filled with liquid medium in the front tank. Generally, the liquid level is 30mm-50mm below the work surface to prevent the heater from being burnt. The power supply is 220VAC/50Hz, and the equipment must have good grounding. The circulation pump is automatically turned on when the equipment starts to operate, and the refrigeration compressor will make corresponding start or stop commands according to the temperature of the equipment unless there is a special need.

LNEYA heat transfer oil secondary circulation system adopts the automatic control function of circulating pump, that is, when the equipment is running, the circulation pump runs automatically. When the equipment is running, because of the function of the self-contained circulation pump, the liquid surface will show a flowing pattern if running. When there is no obvious flow state at the liquid tank interface, it means that there may be a helium state, and it should be exhausted in time. The device has its own cooling function. The cooling function can automatically issue a running or stop command according to the temperature of the device. It can also prohibit the compressor from running through the system parameters. When the device prohibits the compressor from running, the compressor needs to be set again to return to normal. Cooling operation.

The equipment should be placed in a ventilated and dry place, and the back and sides should be separated from the obstacle by more than 300mm. After use, turn off the power switch and unplug the power cord. If it is not used for a long time, the liquid in the tank should be drained and scrubbed clean.

When using the heat transfer oil secondary circulation system, it is necessary to pay more attention to the above problems, so that the use can achieve more efficient operation efficiency.

Cryogenic Equipment -80℃～-10℃

Cryogenic Equipment -80℃～-10℃

 Overview:

• Microcomputer control, cascade temperature controller, digital temperature display, the regulation of unit 0.1℃, inside the temperature range -20 ℃ ~ -125 ℃ adjustable.
• Multi-safety protection, more reliable operation.
• France TECUMSEH compressor, Germany DANFOSS compressor, EMERSON compressor, automatic cascade refrigeration technology, outstanding cryogenic equipment manufacturer.
• 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.
• Suitable for mechanical producing plant use.

carrying	Designed bearing capacity is two times of the standard one, (refrigeration system is designed according to the
	standard capacity when target artifact weight is greater than the standard capacity, the cooling rate will decrease)
Temp. range	-80℃～60℃	-80℃～60℃	-80℃～60℃	-80℃～60℃	-80℃～60℃	-80℃～60℃	-80℃～60℃
Cooling capacity	1kw	1.5kw	2.5kw	1kw	1.5kw	2.5kw	4kw
at -75℃
Temp. accuracy	±2℃	±2℃	±2℃	±2℃	±2℃	±2℃	±2℃
Heating power	2kw	3kw	5kw	2kw	3kw	5kw	8kw
	Nickel-chromium alloy electric heating heater, the controller has double safety protection, with independent
	temperature limiter protection.
Cooling rate	(ambient temperature of 25 degrees, no-load, from 60 degrees to -60 degrees about 1 hour).；cooling rate will be a
	little different for temperature changes.
Controller	ASET multifunctional controller
Operation panel	7-inch color touch screen, display set temperature, measured temperature.
Temp. record	Temperature curve and fault record, U-disk data export, excel format.
Inside circulating	1650 m³/h	2100 m³/h	2750 m³/h	2100 m³/h	2750 m³/h	3500 m³/h	6000 m³/h
air	When it is open, the internal circulation fan automatically turns off. The touch screen displays open state.
Compressor	Emerson Copeland, adopt cascade refrigeration technology
Intermediate heat	KAORI Plate heat exchanger
exchanger
Dry filter	Emerson
Expansion valve	Electronic expansion valve
Evaporator	Copper-tube with aluminum-fin
Cooling Type	Air-cooled with water-cooled auxiliary functions (Ensure good cooling capacity when temp. above 30 degrees)
Means of	Polyurethane foam insulation, thermal insulation layer 125 mm, with embedded FIR boards
insulation
Safety Protection	Self-diagnosis function; Phase sequence phase failure protection; leakage protector; cooling unit overload protection;
	high and low pressure switch, overload relay, thermal protection device, high temperature protection and temperature
	fault protection.
Case material	Outside is cold rolled steel painting, internal is SUS304 wire drawing board.
Refrigerant	R404A R23
Dimension	1150*1150*1850	1350*1300*1850	1550*1500*2100	2200*1150*1150	2700*1200*1200	2900*1300*1250	3700*1400*1350
Power	7KW MAX	11.5KW MAX	15KW MAX	7KW MAX	11.5KW MAX	15KW MAX	21KW MAX
380V 50HZ
Weight	400kg	500kg	690kg	415kg	525kg	710kg	840kg
Optional	High temperature reaches 150℃ and temperature accuracy is ±0.5℃；the input power will be changed（When select this
	model, the thickness of thermal insulation layer will be 150mm, thermal insulation material will be silicate and vacuum plate）
Optional	Closed circulating oil heating system, no direct electric heating element inside the box, suitable for flammable products test
Optional	Temp. accuracy ±0.5℃
Optional	Cooling and heating program controlled, meet cold treatment process requirements(can set 5 programs, each program can
	edit 45 steps.)
Optional	Interior door, reduce cooling capacity lost when picking small workpieces (temperature below 60 degrees optional)
Optional	Outside SUS304 wire drawing board case
Optional	Diameter 50mm cable hole
Optional	Electric heating vacuum glass observation window (with lighting) 200mm*300mm
Optional	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）

The maintenance of low temperature refrigerator is particularly important for using normally and prolonging its life and. Today Guanya will talk something about the details of daily maintenance.

Step 1: Clean the storage box
The storage box should be cleaned once a month,  wipe out the dust on the enclosure and the interior and all the attached parts by a dry cloth. If the box is dirty, use a clean cloth soaked with neutral detergent to remove the stolen goods and wipe away the remaining detergent with a wet cloth, and then wipe it with a dry cloth.

Step 2: Clean the condenser filter net
When the alarm light of the ''dirty condenser'' is scintillating on the display panel of the storage box, it is necessary to clean the filter net. Clean the filter once a month even if the light is not on. If the filter is blocked, the compressor life will be shortened and the cooling is slower.

Step 3: Defrosting the inner wall
The frosting is usually on the upper part of the box and the inner door. The frost may cause a gap between the box and the door seal, resulting in a bad cooling. Defrost the inner door with the complimentary defrosting shovel of the equipment.

The battery of power off the alarm is also consumable. The battery life is about 3 years, if the battery is used more than 3 years, it may not function when the alarm is called, so that the storage settings may be affected.

Contact Lneya for more.