Chilled water move meter is a flowmeter that can be used to measure low temperature water. Common chilled water flowmeters include electromagnetic move meters, turbine circulate meters and ultrasonic move meters. Used in condensing systems, chillers or HVAC. there are multiple circulate and energy measurement alternatives in chilled water methods and Apure presents a range of chilled water circulate meter technologies that are significantly properly suited for this difficult utility. Some concerns for drive expertise choice embody installation requirements, accuracy requirements and upkeep implications. Apure’s insertion turbine and insertion electromagnetic flowmeters are simple to put in in new or present methods, provide accurate measurements over a wide range of flow regulation, and provide years of trouble-free service in closed-loop hydronic systems.
For installations requiring the very best accuracy, similar to cost allocation, efficiency contracting or sub-metering, in-line electromagnetic flowmeters could additionally be the most effective answer. But there isn’t any greatest chilled water circulate meter, only probably the most appropriate one. This is because the details of every pipeline application are different. According to the actual measurement scenario, choose essentially the most appropriate flowmeter. It can save plenty of time and price.
Depending on the requirements of the chilled water utility, other Apure meters may be more appropriate. Please review the meters beneath or be happy to contact us for an additional dialog.
AYT Digital Liquid Magnetic Flow Meter
Learn More AYT Digital Liquid Magnetic Flow Meter
AFT Split Type Electromagnetic Flow Meter
Learn More AFT Split Type Electromagnetic Flow Meter
ACT Insertion Type Magnetic Flowmeter
Learn More ACT Insertion Type Magnetic Flowmeter
LWGY Liquid Turbine Flow Meter
Learn More LWGY Liquid Turbine Flow Meter
APT Air Vortex Flow Transmitter
Learn More APT Air Vortex Flow Transmitter
TUF Clamp On Ultrasonic Flow Meter
Learn More TUF Clamp On Ultrasonic Flow Meter
FAQ
Where to installation circulate meter in chilled water?
In order to ensure the accurate measurement of chilled water flow meter, the installation position and methodology have to be accurately selected
Requirements for straight pipe part: it have to be installed horizontally on the pipe (the pipe tilt is lower than 5). During set up, the flowmeter axis should be concentric with the pipe axis and circulate direction ought to be consistent. The size of the upstream pipe ought to be at least 2D straight pipe part. If the set up website permits, it is strongly recommended that the upstream straight pipe section be 20D and the downstream pipe part be 5D.
Requirements for piping: The inside diameter of the upstream and downstream piping of the set up level is similar as that of the flowmeter.
Requirements on by-pass pipe: In order to guarantee that the maintenance of the flowmeter does not have an result on the traditional use of the medium, the cut-off valve (cut-off valve) ought to be put in on the front and rear pipes of the turbine flowmeter, and the by-pass pipe ought to be set at the identical time. Flow management valve to be put in in the downstream of the circulate meter, the upstream put in cut-off valve should be totally open when in use, to keep away from the upstream a part of the fluid produced unstable move phenomenon.
The necessities of the exterior setting: it’s best to install in the indoor, should be put in within the outside, should use sunscreen, rain. Lightning safety measures, in order to not have an effect on service life.
Requirements for impurities within the medium: In order to ensure the service lifetime of the flowmeter, the filter must be put in in entrance of the straight pipe section of the flowmeter.
Installation website: The flowmeter should be installed in a spot that’s simple to keep up and free from sturdy electromagnetic interference and thermal radiation.
What are the constraints of electromagnetic flowmeter at low temperature?
The low-temperature resistance of the information.
The electrical insulation of the electromagnetic flowmeter transmitter.
Can ultrasonic move meters measure chilled water flow?
Ultrasonic flowmeter can measure the circulate price. The temperature mustn’t exceed -40℃~160℃. Requires a whole test tube and uniform medium. It can show instantaneous move rate, circulate rate, cumulative circulate fee and cumulative working time.
Ultrasonic calorimeter can measure warmth supply, circulate price and temperature monitoring. Air conditioning heating and cooling capability measurement.
How to measure the chilled water circulate price of a chiller??
The following is our expertise sharing: chiller chilled water flow measurement approach. We hope it goes to be helpful to you.
1. Chiller into and out of the water strain detection of water pipes
By detecting the return water pressure and outlet water strain values. Check the water flow price of the chiller underneath the inlet and outlet water stress difference in the random manual of the chiller.
Refer to the corresponding unit water flow fee desk or chart within the manual. Thus, decide whether or not the refrigeration system is normal or not.
And by this distinction to determine which part of the transmission pipe resistance worth is higher. And develop the corresponding rectification plan and action.
2. Test the fridge return water temperature and water temperature (the unit must be in regular condition)
After half-hour of energy on, check the system or chilled water system inlet and outlet thermometer by way of the unit control system parameters.
The inlet water temperature and outlet water temperature could be learn when the unit is running. The distinction have to be about 4-6 degrees.
If the difference between the inlet and outlet water temperatures is simply too massive, the water system is flowing too little water by way of the plates. This could cause the tools to fail to function properly or be damaged.
3. Pump running current detection
By detecting the running present of the fridge water pump, and the rated current for comparison. You can decide whether or not the actual water circulate is greater than or lower than the rated water circulate of the pump.
Combined with the previous parameters comprehensive judgment. In pressure gauge to get an correct chiller system test and evaluation report.
4. Compressor copper tube suction temperature detection (only when the refrigeration operation)
If the refrigerator and freezer is turned on after half-hour
The compressor suction temperature is detected to be lower than 0 levels. It means that the water circulate in the water aspect warmth exchanger just isn’t sufficient, which causes the evaporation temperature and evaporation strain to drop.
and causes Freon to nonetheless evaporate and absorb heat from the suction tube flowing from the evaporator to the compressor. It will result in the compressor suction temperature beneath zero levels.
In addition, it’s necessary to remove the drop of evaporating pressure and evaporating temperature caused by low water temperature setting value.
Non-standard low water temperature unit can be thought of regular so lengthy as the compressor suction superheat degree is 6-8 degrees Celsius.
So underneath the normal water flow. The compressor suction temperature is usually higher than 0℃. Below this value, the water system problem must be excluded.
Extended reading:
Solvent move meter
Sewage flowmeter
Oil and gasoline circulate meter
Relation between flow and straine
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Chilled water flow meter is a flowmeter that can be utilized to measure low temperature water. Common chilled water flowmeters include electromagnetic move meters, turbine circulate meters and ultrasonic flow meters. Used in condensing techniques, chillers or HVAC. there are multiple flow and vitality measurement opportunities in chilled water systems and Apure offers a range of chilled water flow meter applied sciences that are notably well suited to this challenging application. Some issues for drive technology choice include set up necessities, accuracy necessities and upkeep implications. Apure’s insertion turbine and insertion electromagnetic flowmeters are straightforward to install in new or existing techniques, provide correct measurements over a variety of circulate regulation, and supply years of trouble-free service in closed-loop hydronic methods.
For installations requiring the best accuracy, similar to cost allocation, efficiency contracting or sub-metering, in-line electromagnetic flowmeters may be one of the best resolution. But there is not any finest chilled water circulate meter, only probably the most appropriate one. This is because the major points of each pipeline utility are different. According to the precise measurement state of affairs, select the most appropriate flowmeter. It can save lots of time and cost.
Depending on the necessities of the chilled water software, different Apure meters may be more appropriate. Please evaluation the meters below or feel free to contact us for an extra dialog.
AYT Digital Liquid Magnetic Flow Meter
Learn More AYT Digital Liquid Magnetic Flow Meter
AFT Split Type Electromagnetic Flow Meter
Learn More AFT Split Type Electromagnetic Flow Meter
ACT Insertion Type Magnetic Flowmeter
Learn More ACT Insertion Type Magnetic Flowmeter
LWGY Liquid Turbine Flow Meter
Learn More LWGY Liquid Turbine Flow Meter
APT Air Vortex Flow Transmitter
Learn More APT Air Vortex Flow Transmitter
TUF Clamp On Ultrasonic Flow Meter
Learn More TUF Clamp On Ultrasonic Flow Meter
FAQ
Where to set up move meter in chilled water?
In order to make sure the accurate measurement of chilled water flow meter, the installation position and technique must be accurately selected
Requirements for straight pipe part: it have to be put in horizontally on the pipe (the pipe tilt is lower than 5). During installation, the flowmeter axis ought to be concentric with the pipe axis and move direction must be constant. The length of the upstream pipe ought to be no much less than 2D straight pipe part. If the installation web site permits, it is suggested that the upstream straight pipe section be 20D and the downstream pipe section be 5D.
Requirements for piping: The internal diameter of the upstream and downstream piping of the installation point is similar as that of the flowmeter.
Requirements on by-pass pipe: In order to make certain that the maintenance of the flowmeter doesn’t affect the normal use of the medium, the cut-off valve (cut-off valve) should be put in on the front and rear pipes of the turbine flowmeter, and the by-pass pipe should be set on the similar time. Flow management valve to be put in in the downstream of the flow meter, the upstream installed cut-off valve should be fully open when in use, to keep away from the upstream a half of the fluid produced unstable circulate phenomenon.
The requirements of the exterior environment: it is best to install within the indoor, should be installed in the outside, must use sunscreen, rain. Lightning safety measures, so as to not have an effect on service life.
Requirements for impurities within the medium: In order to ensure the service lifetime of the flowmeter, the filter ought to be installed in front of the straight pipe section of the flowmeter.
Installation web site: The flowmeter must be installed in a spot that’s simple to keep up and free from robust electromagnetic interference and thermal radiation.
What are the restrictions of electromagnetic flowmeter at low temperature?
The low-temperature resistance of the information.
The electrical insulation of the electromagnetic flowmeter transmitter.
Can ultrasonic circulate meters measure chilled water flow?
Ultrasonic flowmeter can measure the move fee. The temperature should not exceed -40℃~160℃. Requires an entire take a look at tube and uniform medium. It can display instantaneous circulate fee, circulate price, cumulative flow price and cumulative operating time.
Ultrasonic calorimeter can measure warmth supply, move price and temperature monitoring. Air conditioning heating and cooling capability measurement.
How to measure the chilled water flow fee of a chiller??
The following is our expertise sharing: chiller chilled water flow measurement approach. We hope will most likely be useful to you.
1. Chiller into and out of the water stress detection of water pipes
By detecting the return water pressure and outlet water stress values. Check the water flow rate of the chiller underneath the inlet and outlet water pressure difference in the random manual of the chiller.
Refer to the corresponding unit water move price desk or chart within the guide. Thus, determine whether the refrigeration system is regular or not.
And by this distinction to determine which section of the transmission pipe resistance worth is greater. And develop the corresponding rectification plan and action.
2. Test the refrigerator return water temperature and water temperature (the unit must be in regular condition)
After half-hour of power on, check the system or chilled water system inlet and outlet thermometer by way of the unit management system parameters.
The inlet water temperature and outlet water temperature can be read when the unit is working. The difference must be about 4-6 levels.
If the distinction between the inlet and outlet water temperatures is just too giant, the water system is flowing too little water through the plates. This could trigger the gear to fail to operate correctly or be broken.
three. Pump running present detection
By detecting the operating present of the refrigerator water pump, and the rated current for comparability. You can determine whether the precise water move is larger than or less than the rated water flow of the pump.
Combined with the earlier parameters complete judgment. In order to get an accurate chiller system check and analysis report.
4. ไดอะแฟรม (only when the refrigeration operation)
If the refrigerator and freezer is turned on after half-hour
The compressor suction temperature is detected to be lower than 0 levels. It signifies that the water flow in the water facet warmth exchanger is not sufficient, which causes the evaporation temperature and evaporation strain to drop.
and causes Freon to still evaporate and take up warmth from the suction tube flowing from the evaporator to the compressor. It will result in the compressor suction temperature under zero degrees.
In addition, it’s essential to get rid of the drop of evaporating stress and evaporating temperature caused by low water temperature setting worth.
Non-standard low water temperature unit can be thought-about regular as lengthy as the compressor suction superheat diploma is 6-8 levels Celsius.
So beneath the conventional water circulate. The compressor suction temperature is usually larger than 0℃. Below this value, the water system downside must be excluded.
Extended reading:
Solvent circulate meter
Sewage flowmeter
Oil and gasoline flow meter
Relation between move and pressuree