Chilled water flow meter

Chilled water circulate meter is a flowmeter that can be used to measure low temperature water. Common chilled water flowmeters embrace electromagnetic flow meters, turbine flow meters and ultrasonic move meters. Used in condensing techniques, chillers or HVAC. there are a quantity of flow and power measurement opportunities in chilled water methods and Apure provides a spread of chilled water move meter applied sciences which would possibly be particularly nicely suited to this difficult software. Some concerns for drive expertise choice include installation requirements, accuracy requirements and upkeep implications. Apure’s insertion turbine and insertion electromagnetic flowmeters are simple to install in new or current techniques, provide accurate measurements over a wide range of move regulation, and provide years of trouble-free service in closed-loop hydronic systems.
For installations requiring the very best accuracy, similar to cost allocation, performance contracting or sub-metering, in-line electromagnetic flowmeters may be one of the best answer. But there is no greatest chilled water move meter, only essentially the most acceptable one. This is as a outcome of the details of each pipeline application are completely different. According to the precise measurement state of affairs, choose the most suitable flowmeter. It can save lots of time and price.
Depending on the requirements of the chilled water software, different Apure meters may be extra appropriate. Please review the meters below or feel free to contact us for a further conversation.
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 make sure the correct measurement of chilled water move meter, the installation place and methodology have to be appropriately selected

Requirements for straight pipe part: it must be installed horizontally on the pipe (the pipe tilt is lower than 5). During set up, the flowmeter axis must be concentric with the pipe axis and flow course must be constant. The size of the upstream pipe should be at least 2D straight pipe section. If the installation web site permits, it is recommended that the upstream straight pipe section be 20D and the downstream pipe part be 5D.
Requirements for piping: The inner diameter of the upstream and downstream piping of the installation point is the same as that of the flowmeter.
Requirements on by-pass pipe: In order to make sure that the maintenance of the flowmeter does not affect the traditional use of the medium, the cut-off valve (cut-off valve) ought to be put in on the entrance and rear pipes of the turbine flowmeter, and the by-pass pipe must be set at the same time. Flow management valve to be put in within the downstream of the circulate meter, the upstream installed cut-off valve must be totally open when in use, to avoid the upstream a half of the fluid produced unstable flow phenomenon.
The requirements of the external environment: it’s best to put in within the indoor, should be put in in the out of doors, should use sunscreen, rain. Lightning protection measures, in order to not have an result on service life.
Requirements for impurities in the medium: In order to ensure the service life of the flowmeter, the filter should be installed in front of the straight pipe section of the flowmeter.
Installation website: The flowmeter must be put in in a place that’s easy to maintain and free from strong electromagnetic interference and thermal radiation.
What are the constraints of electromagnetic flowmeter at low temperature?

The low-temperature resistance of the data.
The electrical insulation of the electromagnetic flowmeter transmitter.
Can ultrasonic circulate meters measure chilled water flow?

Ultrasonic flowmeter can measure the circulate rate. The temperature shouldn’t exceed -40℃~160℃. Requires a complete check tube and uniform medium. It can display instantaneous move rate, move price, cumulative flow price and cumulative operating time.
Ultrasonic calorimeter can measure heat provide, move rate and temperature monitoring. Air conditioning heating and cooling capability measurement.
How to measure the chilled water circulate rate of a chiller??

The following is our experience sharing: chiller chilled water circulate measurement technique. 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 strain and outlet water pressure values. Check the water flow price of the chiller under the inlet and outlet water pressure difference within the random guide of the chiller.
Refer to the corresponding unit water flow fee desk or chart within the manual. Thus, determine whether the refrigeration system is normal or not.
And by this difference to discover out which section of the transmission pipe resistance worth is higher. 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 30 minutes of energy on, check the system or chilled water system inlet and outlet thermometer through the unit control system parameters.
The inlet water temperature and outlet water temperature can be learn when the unit is running. The difference should be about 4-6 levels.
If the difference between the inlet and outlet water temperatures is just too large, the water system is flowing too little water via the plates. This could cause the tools to fail to operate correctly or be broken.
3. Pump working current detection

By detecting the working current of the fridge water pump, and the rated current for comparison. You can determine whether or not the precise water flow is bigger than or less than the rated water flow of the pump.
Combined with the previous parameters complete judgment. In order to get an correct chiller system take a look at and evaluation report.
four. Compressor copper tube suction temperature detection (only when the refrigeration operation)

If the fridge and freezer is turned on after 30 minutes

The compressor suction temperature is detected to be decrease than 0 degrees. It means that the water circulate in the water side heat exchanger is not enough, which causes the evaporation temperature and evaporation pressure to drop.
and causes Freon to still evaporate and take in warmth from the suction tube flowing from the evaporator to the compressor. เกจวัดแรงดัน will result in the compressor suction temperature below 0 levels.
In addition, it is essential to eliminate the drop of evaporating pressure and evaporating temperature attributable to low water temperature setting value.
Non-standard low water temperature unit could be thought of regular as long as the compressor suction superheat degree is 6-8 levels Celsius.
So under the normal water move. The compressor suction temperature is usually higher than 0℃. Below this value, the water system drawback needs to be excluded.
Extended studying:
Solvent move meter

Sewage flowmeter

Oil and gas move meter

Relation between move and pressuree
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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 flow meters, turbine move meters and ultrasonic move meters. Used in condensing systems, chillers or HVAC. there are a number of flow and energy measurement opportunities in chilled water methods and Apure provides a spread of chilled water circulate meter applied sciences that are particularly properly fitted to this difficult application. Some considerations for drive know-how choice include installation necessities, accuracy necessities and upkeep implications. Apure’s insertion turbine and insertion electromagnetic flowmeters are easy to put in in new or existing systems, present accurate measurements over a variety of move regulation, and provide years of trouble-free service in closed-loop hydronic systems.
For installations requiring the best accuracy, similar to price allocation, performance contracting or sub-metering, in-line electromagnetic flowmeters may be one of the best solution. But there isn’t any best chilled water move meter, only probably the most appropriate one. This is as a end result of the small print of every pipeline application are different. According to the precise measurement scenario, choose the most appropriate flowmeter. It can save lots of time and value.
Depending on the necessities of the chilled water software, other Apure meters may be more suitable. Please evaluation the meters under or feel free to contact us for a further conversation.
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 flow meter in chilled water?

In order to make sure the accurate measurement of chilled water move meter, the set up position and methodology should be appropriately chosen

Requirements for straight pipe section: it should be put in horizontally on the pipe (the pipe tilt is less than 5). During installation, the flowmeter axis should be concentric with the pipe axis and circulate path should be consistent. The size of the upstream pipe ought to be at least 2D straight pipe part. If the installation site permits, it is recommended that the upstream straight pipe section be 20D and the downstream pipe section be 5D.
Requirements for piping: The inner diameter of the upstream and downstream piping of the set up point is identical as that of the flowmeter.
Requirements on by-pass pipe: In order to ensure that the maintenance of the flowmeter does not have an effect on the conventional use of the medium, the cut-off valve (cut-off valve) must be installed on the entrance and rear pipes of the turbine flowmeter, and the by-pass pipe ought to be set at the same time. Flow control valve to be put in in the downstream of the flow meter, the upstream installed cut-off valve must be fully open when in use, to avoid the upstream a half of the fluid produced unstable move phenomenon.
The requirements of the external surroundings: it’s best to put in within the indoor, have to be installed within the out of doors, must use sunscreen, rain. Lightning protection measures, in order not to have an result on service life.
Requirements for impurities in the medium: In order to make sure the service lifetime of the flowmeter, the filter ought to be installed in front of the straight pipe part of the flowmeter.
Installation website: The flowmeter ought to be put in in a spot that is easy to maintain and free from strong electromagnetic interference and thermal radiation.
What are the limitations 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 move price. The temperature mustn’t exceed -40℃~160℃. Requires an entire take a look at tube and uniform medium. It can display instantaneous flow price, move fee, cumulative circulate price and cumulative working time.
Ultrasonic calorimeter can measure warmth provide, move rate and temperature monitoring. Air conditioning heating and cooling capability measurement.
How to measure the chilled water move price of a chiller??

The following is our expertise sharing: chiller chilled water flow measurement method. We hope will most likely be helpful to you.
1. Chiller into and out of the water strain detection of water pipes

By detecting the return water stress and outlet water strain values. Check the water flow fee of the chiller under the inlet and outlet water stress distinction within the random manual of the chiller.
Refer to the corresponding unit water move price desk or chart within the manual. Thus, determine whether or not the refrigeration system is regular or not.
And by this distinction to discover out which section of the transmission pipe resistance value is greater. And develop the corresponding rectification plan and motion.
2. Test the fridge return water temperature and water temperature (the unit needs to be in regular condition)

After half-hour of power on, check the system or chilled water system inlet and outlet thermometer through the unit management system parameters.
The inlet water temperature and outlet water temperature could be learn when the unit is running. The difference have to be about 4-6 degrees.
If the distinction between the inlet and outlet water temperatures is merely too massive, the water system is flowing too little water by way of the plates. This might cause the tools to fail to function correctly or be broken.
3. Pump operating present detection

By detecting the operating current of the refrigerator water pump, and the rated current for comparability. You can decide whether the precise water move is larger than or less than the rated water flow of the pump.
Combined with the previous parameters complete judgment. In order to get an correct chiller system check and analysis report.
4. Compressor copper tube suction temperature detection (only when the refrigeration operation)

If the fridge and freezer is turned on after half-hour

The compressor suction temperature is detected to be lower than 0 degrees. It signifies that the water circulate in the water side warmth exchanger is not sufficient, which causes the evaporation temperature and evaporation pressure to drop.
and causes Freon to nonetheless evaporate and take in warmth from the suction tube flowing from the evaporator to the compressor. It will lead to the compressor suction temperature beneath zero levels.
In addition, it is essential to remove the drop of evaporating stress and evaporating temperature attributable to low water temperature setting worth.
Non-standard low water temperature unit can be thought of regular as lengthy as the compressor suction superheat degree is 6-8 degrees Celsius.
So under the conventional water move. The compressor suction temperature is usually greater than 0℃. Below this worth, the water system problem must be excluded.
Extended studying:
Solvent flow meter

Sewage flowmeter

Oil and fuel circulate meter

Relation between flow and straine

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