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Effective measures to prevent industrial chiller compressors from malfunctioning

2025-06-20

Although most of the various industrial chillers produced in my country are imported compressors, which have a long service life, but in actual use, if the user does not carefully maintain and maintain the compressors of the industrial chillers, Different degrees of failures will also occur, seriously affecting the performance of the entire industrial chiller. There are several effective measures to prevent industrial chiller compressors from malfunctioning, including:

Regular maintenance: Regular maintenance of the compressor, including cleaning and replacing parts, can prevent malfunctioning due to wear and tear.During the use of industrial chillers, it is necessary to pay attention to the noise of the compressor at all times. If the noise increases significantly, according to the experience introduced by the industrial cooler factory, it is necessary to complete the shutdown inspection in a timely and effective manner at this time to ensure normal operation. On the basis of this, complete the maintenance work of industrial cooler compressors. Note: Once the compressor makes noise, you must be more vigilant, often small problems will cause complex and serious failures in the later stage, such as compressor liquid shock.

Measure the operating temperature: During the operation of the industrial chiller, it is necessary to measure the specific operating temperature of the compressor of the industrial chiller by hand or equipment at any time. If the temperature is too high, it means that the industrial chiller is in an overloaded state. At this time, it is necessary to measure the current and voltage. In order to achieve the purpose of fault detection, so as to ensure that the industrial chiller compressor is in an absolutely safe operating state, reach a suitable operating temperature, and complete the entire operating process. Note: If the temperature of the compressor is too high, it may also be caused by too little fluorine, too small compressor power, too long capillary, poor condensation effect, temperature control failure, and lack of oil in the compressor. The damage is very serious, so special attention must be paid.


Clean condenser coils: The condenser coils of the chiller should be kept clean to ensure that the compressor is not overworked due to reduced heat transfer.Pay attention to the pressure gauge,if the high pressure gauge is very high, please check the condenser coil and clean it when necessary.


Proper refrigerant charge: The compressor should have the correct refrigerant charge to ensure that it is not working harder than necessary, which can cause it to malfunction.


Monitoring of operating conditions: The operating conditions of the compressor, including temperature and pressure, should be monitored to ensure that it is not overworked or subjected to conditions that can cause malfunctioning.


Training of personnel: Proper training of personnel in charge of operating and maintaining the compressor can prevent mistakes that can cause the compressor to damage.

How do the hydroponic farms chose a chiller.

2025-06-20

Nutrient solution hydroponic chiller- Hydroponic nutrient solution temperature control device- Hydroponic nutrient solution cooling cycle machine


The soilless culture nutrient solution is prepared from chemical fertilizers, and the temperature of the soilless culture nutrient solution is to simulate the ground temperature of soil cultivation. The ground temperature is generally 18-20°C. In soilless cultivation, the substrate temperature and nutrient solution temperature should be 18-20°C. If it is too high or too low, it will affect the normal absorption of the root system.

Hydroponic farms choose a chiller based on several key factors. Here are some considerations:


Cooling Capacity: The chiller should have sufficient cooling capacity to meet the specific needs of the hydroponic system. This is determined by factors such as the size of the system, the type of plants being grown, and the environmental conditions.


Control Precision: It is important to maintain a stable and precise temperature for optimal plant growth. Therefore, the chiller should have accurate temperature control capabilities to ensure consistent and reliable performance.


Energy Efficiency: Hydroponic farms often operate on a large scale, so energy efficiency is crucial. Look for chillers that are designed to be energy efficient and have high performance Coefficient of Performance (COP) ratings, which indicate their energy efficiency.


Noise Level: Depending on the location of the hydroponic farm, minimizing noise disturbances may be important. Choose a chiller that operates quietly to avoid any disruptions.


Installation and Maintenance Convenience: Consider the ease of installation, maintenance, and servicing of the chiller. Opt for a chiller that is user-friendly, has readily available spare parts, and is supported by a reliable manufacturer or supplier.


It is recommended to consult with suppliers or manufacturers specializing in hydroponic farming equipment to get more specific recommendations based on your farm's requirements.

How does an industrial water chiller work?

2025-06-20

An industrial water chiller is a device designed to remove heat from a process or equipment and transfer it to a separate water source. It is commonly used in various industrial applications, such as cooling machinery, lasers, plastic molding machines, and other processes that generate heat. The basic working principle involves the circulation of a coolant, typically water or a water-glycol mixture, through a closed loop.

Here is a general overview of how an industrial water chiller works:

Evaporator:
The process begins in the evaporator, where the chiller absorbs heat from the process or equipment that needs to be cooled.

The coolant (water or water-glycol mixture) flows through a coil or heat exchanger in the evaporator. As it circulates, it absorbs the heat from the process, causing the coolant to evaporate.


Refrigeration Cycle:

The vaporized coolant is then drawn into the compressor, which increases its pressure and temperature. This compression process is a key step in the refrigeration cycle.

The high-pressure, high-temperature vapor is then routed to the condenser.


Condenser:

In the condenser, the hot refrigerant vapor releases heat to a separate water circuit or air.

As the refrigerant gives up heat, it undergoes a phase change from vapor to liquid.


Expansion Valve:

The high-pressure liquid refrigerant then passes through an expansion valve, where its pressure is rapidly reduced.

This reduction in pressure causes the refrigerant to expand, resulting in a decrease in temperature.


Evaporator (Again):

The now-cool refrigerant returns to the evaporator to absorb more heat from the process, and the cycle repeats.


Cooling Water Circuit:

Simultaneously, a separate water circuit, known as the cooling water circuit, is responsible for carrying away the heat absorbed by the chiller.

This cooling water is circulated through the condenser to remove the heat from the refrigerant.


Control System:

A control system regulates the chiller's operation based on the temperature requirements of the process or equipment being cooled.
The system may include sensors, a thermostat, and a controller to maintain the desired temperature.

By continuously circulating the coolant through this refrigeration cycle, an industrial water chiller efficiently removes heat from the target process or equipment, ensuring that it operates within optimal temperature ranges.


OUMAL as a professional manufacturer and supplier of industrial chillers. Provides various types of cooling water chillers. Including air-cooled chillers and water-cooled chillers. Welcome to consult! oumal@oumal.com

How to achieve low cost operation of screw chiller

2025-06-20

In this era of advocating energy saving and environmental protection, it is very necessary to reduce the operating cost of the screw chiller. We can start from the product itself, and pay attention to various details in daily use, so as to reduce energy consumption and reduce the operating cost of the screw chiller. To reduce the operating cost of the screw chiller, we must start from its energy consumption. The energy consumption of the screw chiller mainly depends on whether the unit is faulty, and the other is the operating power of the unit. Next, let's talk about how to reduce the operating cost of the screw machine from several aspects.

water cooled screw chiller cost

1) Regular maintenance: Regular maintenance of the screw chiller is essential to ensure efficient operation. This includes cleaning the evaporator and condenser coils, checking and maintaining refrigerant levels, lubricating the compressor, and replacing worn out components.


2) Optimize water flows: Adjusting the flow rates of the chilled and condenser water can significantly impact the energy consumed. By minimizing the flow rates, the chiller consumes less energy.


3) Control temperature set points: Ensure optimal set points for both condensing and evaporator temperatures to prevent unnecessary operation of the chiller.


4) Use economizer mode: Many screw chillers have an economizer mode that utilizes free cooling when the outside temperature is cooler. This mode helps save energy and reduces running costs.


5) Upgrade to an energy-efficient system: Consider upgrading to a more efficient screw chiller model to reduce running costs. The initial investment may be higher, but it will pay off in terms of reduced energy consumption and lower operating costs.


6) Utilize VFDs: Variable Frequency Drives (VFDs) allow the chiller to operate at varying speeds, depending on the cooling requirement. This results in less energy consumed, along with reduced wear and tear on the equipment.


7) Use high-efficiency motors: The installation of high efficiency motors can significantly reduce energy consumption. These motors have high power factors, which means they consume less energy while operating at the same load.


8) Monitor energy usage: Regular energy monitoring helps identify inefficiencies and areas for improvement. By tracking energy usage, property owners can determine the best practices for reducing operating costs.

How to chose a suitable pump for a water chiller

2025-06-20

The selection of the water pump is a particularly critical step in the commissioning of the chiller. A suitable water pump can ensure the normal operation of the chiller, save energy and reduce maintenance costs.When choosing a pump for a chiller, there are several factors to consider:


Flow Rate: Determine the required flow rate based on the cooling capacity and specifications of the chiller. The pump should be capable of delivering the necessary flow rate to ensure efficient cooling. The flow rate is typically measured in gallons per minute (GPM) or liters per minute (LPM).


Head Pressure: Consider the required head pressure or pressure drop for the chiller system. It depends on factors such as the length and diameter of the piping, the resistance of the heat exchangers, and any additional components in the system. The pump should be able to provide sufficient pressure to overcome the head loss and maintain the desired flow rate.


Pump Type: Select the appropriate pump type for your application. Common pump types used in chiller systems include centrifugal pumps and positive displacement pumps. Centrifugal pumps are generally more suitable for high flow rates, while positive displacement pumps are better for applications with variable or lower flow rates.

Steps for pump selection

1. Determine the working parameters of the chiller

Before selecting the type of water pump, it is first necessary to clarify the working parameters of the chiller, including cooling capacity, external ambient temperature, cooling water diameter, etc.

2. Choose the right pump type

When selecting models, it is necessary to choose popular pump types, such as centrifugal pumps, axial flow pumps, mixed flow pumps, etc. At the same time, full consideration should be given to indicators such as flow, lift, and efficiency, which can usually be calculated by professional selection software on the market or Refer to the selection manual of the large water pump manufacturer.

3. Determine the pump shaft power and motor power

After the selection, it is necessary to calculate the shaft power of the pump and the corresponding motor power based on the flow rate and head. In general, it is necessary to refer to the parameter manual of the pump manufacturer, or use professional software for calculation.

4. Check whether the matching of water pump and chiller is suitable

After determining the shaft power of the water pump and motor, it is necessary to check the data to ensure that the working range of the selected water pump can match the flow rate, head and other parameters required by the chiller, so as to ensure the normal operation of the chiller.

How to deal with poor heat dissipation of screw chiller

2025-06-20

Industrial chillers can realize mutual switching, speed up production progress, reduce energy consumption, improve product molding efficiency, suppress product defects, and reduce the occurrence of defective products. Screw chillers are widely used in many fields such as electronics, rubber, plastics, papermaking, petroleum, chemical industry, food, machinery, brewing, vacuum coating, pharmaceuticals, etc., and are also widely used in places with centralized cooling to facilitate centralized management.


In industrial manufacturing, chillers are crucial to the transfer of heat. However, many chiller ma chines are prone to poor heat dissipation after a period of actual operation. At this time, product maintenance should be carried out in a timely manner.


First of all, let's clarify the signs of poor heat dissipation of the chiller. When the condenser of the chiller has poor heat dissipation, the efficiency of the compressor will decrease, and the operating current will increase, which will eventually lead to the air-cooled chiller high pressure. When the air-cooled high pressure rises to 24kg/cm2, the water-cooled chiller high pressure will rise to 20kg/cm2 is a sign of poor heat dissipation of the chiller. At this time, maintenance should be carried out in time.


Poor heat dissipation and treatment methods of water-cooled screw chiller:

When the heat dissipation of the condenser is poor, the efficiency of the compressor will be low, and the operating current will increase. The compressor will trip due to the protection of the high-voltage switch, causing the compressor to stop running. Whether the circulating water of the cooling tower is normal, whether the temperature of the cooling water is too high, whether the cooling tower fan pump is running, and whether the cooling water valve is open. After the above things are normal, you need to press the reset button again, or shut down and restart to operate normally. If high pressure overload occurs frequently, the condenser needs to be cleaned.



Treatment method for poor heat dissipation of air-cooled screw chiller:

1. Check whether thefin condenser of the chiller isdirty, if so, clean it with a small brush.

2. Check whether the fan of the chiller is working normally. If not, you can blow it with air or wipe it clean with a soft cloth dipped in some detergent.

3. Move the chiller to a well-ventilated place to avoid blocking the radiator.

4. If the heat dissipation performance of the chiller is still not good, you can consider upgrading the accessories of the chiller, such as fans, heat sinks or other components.



The above is Oumal's solution to the poor heat dissipation of the chiller. For more detailed information, please contact our Oumal manufacturer or Oumal sales: oumal@oumal.com.


How to deal with the leakage of air-cooled chiller refrigerant

2025-06-20

Refrigerant leakage is a common failure of air-cooled chillers. To deal with refrigerant leakage of chillers, we must first understand the cause of refrigerant leakage and find out the cause of the failure to reduce losses caused by refrigerant leakage. If you have a refrigerant leak in an air-cooled chiller, it is important to address it promptly to prevent further damage and ensure the efficient operation of the system. Here are some steps to deal with a refrigerant leak:


Identify the Leak: Use a refrigerant leak detector or bubble solution to locate the source of the leak. Common areas where leaks occur include connections, fittings, valves, and joints.


Ensure Safety: Make sure to follow proper safety procedures when dealing with refrigerants. Wear protective gear such as gloves and goggles, and work in a well-ventilated area.


Repair the Leak: Depending on the size and location of the leak, you may be able to repair it yourself or contact a professional HVAC technician. Common repair methods for air-cooled chillers include tightening fittings, replacing faulty valves or gaskets, or soldering joints.


Evacuate and Recharge Refrigerant: If the refrigerant has leaked significantly, it may be necessary to evacuate the remaining refrigerant from the system using a recovery machine. Once the leak is repaired, vacuum the system to remove any moisture or air, and recharge it with the appropriate amount of refrigerant as specified by the manufacturer.


Test for Leaks: After the repair and recharge, test the system for any remaining leaks. Use a refrigerant leak detector or soap bubbles to carefully check all connections and areas that were repaired.


Monitor and Maintain: Regularly monitor the chiller system for any signs of leakage, such as reduced cooling capacity or unusual noises. Perform routine maintenance, including checking and tightening fittings, cleaning coils, and replacing worn-out parts, to prevent future leaks.

ait-cooled chiller refrigerant

Remember, handling refrigerants can be hazardous and may require proper certification or training. If you're unsure or uncomfortable with dealing with refrigerant leaks, it's best to engage a licensed professional HVAC technician to assess and repair the leak.

How to reduce energy consumption of industrial chillers in hot weather?

2025-06-20

Industrial chillers consume a lot of energy, especially in hot weather, and they have to work harder to maintain the desired temperature. In order to achieve the purpose of energy saving, users of various industrial chillers in the enterprise can combine their own actual operating environment to choose a suitable energy-saving solution for industrial chillers to improve the overall operating efficiency. Help enterprises complete all production processes with higher capital. Here are some ways to reduce your industrial chiller’s energy consumption during hot weather:


inverter water cooled screw chiller


Optimizing Chiller Operating Conditions: Make sure your chiller is running at peak performance by regularly checking set points, temperature differentials, and water flow. Also, make sure the chiller is serviced and maintained regularly to avoid any inefficiencies.


Install a Variable Speed Drive (VSD): A VSD can be installed on the chiller's compressor to ensure the chiller is only running at its required capacity. This helps to significantly reduce energy consumption, since the chiller does not have to work at full capacity all the time. Equipped with a frequency conversion processing device, the high-quality frequency conversion device can achieve the effect of adjusting the speed of the compressor. If the low-pressure refrigerant can increase the pressure when it passes through the compressor, the speed of the centrifuge will cause a large-scale increase. The higher the pressure, the greater the load capacity it can provide. Use the frequency conversion processing device to work at an appropriate frequency according to the specific use environment, which can reduce the energy consumption level.


Rationally increasing the temperature of the evaporator and effectively increasing the temperature of the evaporator can improve the overall working efficiency. It provides higher evaporation in a shorter time, ensures the rapid condensation effect of the condenser, and has a great effect on quickly reducing the ambient temperature.

Recirculate with an economizer: An economizer recycles outside air to cool the water in the chiller. This is a very effective way to reduce energy consumption in hot weather, especially if the outside air temperature is lower than the return water temperature.


Improve insulation: Make sure the chiller and its components are well insulated to prevent heat loss. This helps reduce energy consumption because the chiller doesn't have to work as hard to maintain the desired temperature. Reasonably reduce the temperature of the condenser and reduce the temperature range of the condenser to adjust the entire low temperature to a lower level. The lower the temperature of the condenser, the faster the ambient temperature will drop, thus increasing the working power of the whole device.


Implement a maintenance program: A regular maintenance program helps to spot any inefficiencies in the chiller system and resolve them in a timely manner. This helps reduce energy consumption and extend the life of the chiller. Of course, this kind of maintenance is purpose maintenance. For example, you can start with the system. Only by doing a good job of maintenance can the equipment be used better and the efficiency will be greatly improved.


Consider Alternative Cooling Solutions: Depending on the application, alternative cooling solutions such as evaporative cooling or geothermal cooling may be used. In some applications, they are more energy efficient than traditional chillers.


Overall, reducing energy consumption of industrial chillers during hot weather requires a combination of regular maintenance, optimizing operating conditions and considering alternative cooling solutions.


How to reduce vibration and noise in industrial chillers

2025-06-20

Industrial chillers

can produce vibrations and noise during operation, so it’s important to take measures to reduce them. Here are some steps you can take to reduce vibration and noise in industrial chillers:



Choose an appropriate chiller model with high-quality components and sound insulation technology that help minimize vibration and noise.

industrial chiller vibration

Install the chiller on a solid and flat surface, and use rubber or vibration-damping pads under the chiller to help reduce vibration and noise.



Make sure there is enough space around the chiller, and avoid placing other equipment or items near the chiller to prevent interference that could cause vibration and noise.



Install sound-absorbing materials, such as acoustic foam or soundproof panels, on the sides of the chiller to reduce the reflection and propagation of sound.



Ensure that the chiller is properly maintained and cleaned on a regular basis, including replacing old vibration-damping pads or filters, to keep it running smoothly and reduce vibration and noise.



By following these steps, you can effectively reduce vibration and noise in industrial chillers and improve their efficiency and comfort in usage.

Precautions for installing industrial chillers

2025-06-20

With the continuous improvement of domestic industrial production capacity, industrial chillers are more and more favored by enterprises. However, during the installation process of industrial chillers, some installation problems are often encountered. So how do we properly install an industrial chiller?


air cooled chiller installation


1. After unpacking the new machine, first check the accessories in the box according to the list, so as to avoid the failure of normal installation of the chiller due to the lack of accessories. After confirmation, follow the installation drawings and installation sequence provided by the chiller manufacturer. The water-cooled chiller needs to be installed with a cooling water system. After the cooling tower pipeline is installed, ensure that the water circulation is normal.


2. Please ensure that the working voltage of the chiller is stable and normal. Make sure the power socket is in good contact and the ground wire is grounded reliably. It is necessary to pay attention to whether the power cord socket of the chiller is connected well and the voltage is stable. The normal working voltage of Oumal standard chiller is 3ph-380V-50Hz. If it is indeed a special working voltage range, it can be customized separately. If the power frequency does not match, the machine will be damaged. Please use the 50Hz or 60Hz model according to the actual situation.


3. Check the installation environment and keep away from all kinds of flammable and explosive substances. The installation site of the unit must be the floor, installation pad or foundation, and its horizontal height should be within 6.4mm and can bear the operating weight of the unit. The unit should be placed in a computer room with a room temperature of 4.4-43.3°C, and there should be enough space around and above the unit for routine maintenance. One end of the unit should have space for the exhaust pipe for cleaning the condenser tube bundle, or a door hole or other suitable holes can be used. When the water source and the surrounding environment of the cooling water tower are harsh, the chilled water and cooling water circuits must be installed with Y-type filters and cleaned regularly. The highest part of the closed chilled water system must be installed with an automatic exhaust valve, and the lowest part of the system must be installed with a drain joint for the system to use. If it is an air-cooled chiller, it is necessary to ensure good ventilation and heat dissipation around the chiller fan port. Please ensure that the air inlet and outlet passages of the chiller are smooth, the air outlet above the chiller should be at least 50cm away from the obstacle, and the air inlet on the side should be at least 30cm away from the obstacle.


4. It is strictly forbidden to run without water. The water storage tank will be emptied before the new machine is packed. Please ensure that the water tank is filled with water and then turned on, otherwise the water pump will be easily damaged. The water-cooled chiller must ensure that the cooling water system circulates well.


Oumal will provide guidance before the customer installs the chiller. If the customer does not know how to install the chiller after receiving the chiller, please contact our chiller sales and we will provide professional help.


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