Chilled water flow meter is a flowmeter that can be used to measure low temperature water. Common chilled water flowmeters include electromagnetic move meters, turbine flow meters and ultrasonic move meters. Used in condensing methods, chillers or HVAC. there are multiple flow and energy measurement alternatives in chilled water techniques and Apure offers a range of chilled water move meter applied sciences that are significantly well suited for this difficult software. Some issues for drive know-how choice include installation requirements, accuracy requirements and upkeep implications. Apure’s insertion turbine and insertion electromagnetic flowmeters are straightforward to install in new or current methods, provide correct measurements over a extensive range of flow regulation, and provide years of trouble-free service in closed-loop hydronic techniques.
For installations requiring the best accuracy, similar to value allocation, performance contracting or sub-metering, in-line electromagnetic flowmeters may be the best resolution. But there is not a greatest chilled water move meter, solely the most applicable one. This is as a end result of the major points of every pipeline software are different. According to the actual measurement situation, choose essentially the most appropriate flowmeter. diaphragm seal can save plenty of time and value.
Depending on the necessities of the chilled water software, other Apure meters could also be extra suitable. Please evaluation the meters under or be happy 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 set up flow meter in chilled water?

In order to ensure the accurate measurement of chilled water circulate meter, the set up place and method must be accurately 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 ought to be concentric with the pipe axis and circulate course ought to be consistent. The length of the upstream pipe ought to be at least 2D straight pipe part. If the set up 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 internal diameter of the upstream and downstream piping of the set up point is the same as that of the flowmeter.
Requirements on by-pass pipe: In order to ensure that the upkeep of the flowmeter doesn’t affect the traditional 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 must be set at the identical time. Flow control valve to be put in in the downstream of the flow meter, the upstream installed cut-off valve must be totally open when in use, to avoid the upstream a part of the fluid produced unstable circulate phenomenon.
The requirements of the external setting: it is best to install in the indoor, should be installed within the outside, should use sunscreen, rain. Lightning safety measures, in order to not have an effect on service life.
Requirements for impurities in the medium: In order to make sure the service lifetime of the flowmeter, the filter should be put in in entrance of the straight pipe section of the flowmeter.
Installation site: The flowmeter ought to be put in in a place that’s straightforward to take care of 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 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 should not exceed -40℃~160℃. Requires an entire test tube and uniform medium. It can show instantaneous move price, move rate, cumulative circulate rate and cumulative operating time.
Ultrasonic calorimeter can measure warmth provide, flow fee and temperature monitoring. Air conditioning heating and cooling capacity measurement.
How to measure the chilled water move price of a chiller??

The following is our experience sharing: chiller chilled water circulate measurement approach. We hope it is going to be useful to you.
1. ไดอะแฟรม into and out of the water strain detection of water pipes

By detecting the return water stress and outlet water stress values. Check the water circulate fee of the chiller underneath the inlet and outlet water stress difference in the random manual of the chiller.
Refer to pressure gauge 10 bar or chart within the handbook. Thus, determine whether or not the refrigeration system is normal or not.
And by this distinction to determine which part 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 energy on, check the system or chilled water system inlet and outlet thermometer via the unit management system parameters.
The inlet water temperature and outlet water temperature could be learn when the unit is working. The distinction have to be about 4-6 levels.
If the distinction between the inlet and outlet water temperatures is simply too massive, the water system is flowing too little water via the plates. This might trigger the equipment to fail to function correctly or be damaged.
3. Pump operating present detection

By detecting the working present of the refrigerator water pump, and the rated current for comparability. You can determine whether the actual water move is bigger than or lower than the rated water move of the pump.
Combined with the earlier parameters comprehensive judgment. In order to get an correct chiller system take a look at and analysis report.
four. 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 zero levels. It implies that the water flow in the water aspect heat exchanger just isn’t enough, which causes the evaporation temperature and evaporation strain to drop.
and causes Freon to nonetheless evaporate and take in heat 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 necessary to remove the drop of evaporating strain and evaporating temperature attributable to low water temperature setting worth.
Non-standard low water temperature unit could be considered regular as lengthy as the compressor suction superheat degree is 6-8 degrees Celsius.
So under the traditional water move. The compressor suction temperature is generally higher than 0℃. Below this worth, the water system downside must be excluded.
Extended reading:
Solvent flow meter

Sewage flowmeter

Oil and gasoline flow meter

Relation between move and pressuree
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Chilled water flow meter is a flowmeter that can be used to measure low temperature water. Common chilled water flowmeters embody electromagnetic flow meters, turbine flow meters and ultrasonic move meters. Used in condensing systems, chillers or HVAC. there are a number of flow and vitality measurement opportunities in chilled water methods and Apure provides a variety of chilled water move meter applied sciences which might be particularly properly suited to this difficult application. Some concerns for drive know-how choice include set up requirements, accuracy requirements and upkeep implications. Apure’s insertion turbine and insertion electromagnetic flowmeters are simple to install in new or present systems, present correct measurements over a variety of move regulation, and provide years of trouble-free service in closed-loop hydronic techniques.
For installations requiring the best accuracy, similar to value allocation, performance contracting or sub-metering, in-line electromagnetic flowmeters may be one of the best solution. But there is not a best chilled water circulate meter, solely probably the most acceptable one. This is as a outcome of the primary points of each pipeline utility are different. According to the precise measurement situation, select essentially the most suitable flowmeter. It can save a lot of time and cost.
Depending on the necessities of the chilled water application, different Apure meters could also be more appropriate. Please evaluate the meters beneath or be at liberty to contact us for an extra 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 circulate meter, the installation position and methodology should be accurately selected

Requirements for straight pipe section: it should be installed horizontally on the pipe (the pipe tilt is lower than 5). During installation, the flowmeter axis must be concentric with the pipe axis and circulate direction must be constant. The size of the upstream pipe should be no much less than 2D straight pipe section. If the installation website permits, it is recommended that the upstream straight pipe part 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 similar 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 installed on the front and rear pipes of the turbine flowmeter, and the by-pass pipe ought to be set at the similar time. Flow management valve to be installed in the downstream of the move meter, the upstream put in cut-off valve must be totally open when in use, to keep away from the upstream a part of the fluid produced unstable circulate phenomenon.
The necessities of the external surroundings: it is best to install in the indoor, should be put in in the outside, should use sunscreen, rain. Lightning safety measures, so as not to affect service life.
Requirements for impurities in the medium: In order to ensure the service lifetime of the flowmeter, the filter ought to be installed in entrance of the straight pipe section of the flowmeter.
Installation site: The flowmeter ought to be put in in a spot that’s easy to keep up 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 info.
The electrical insulation of the electromagnetic flowmeter transmitter.
Can ultrasonic flow meters measure chilled water flow?

Ultrasonic flowmeter can measure the move price. The temperature shouldn’t exceed -40℃~160℃. Requires a complete take a look at tube and uniform medium. It can show instantaneous circulate rate, move fee, cumulative circulate fee and cumulative working time.
Ultrasonic calorimeter can measure heat supply, flow rate and temperature monitoring. Air conditioning heating and cooling capacity measurement.
How to measure the chilled water circulate fee of a chiller??

The following is our expertise sharing: chiller chilled water circulate measurement approach. We hope it goes to be helpful to you.
1. Chiller into and out of the water stress detection of water pipes

By detecting the return water stress and outlet water pressure values. Check the water move price of the chiller beneath the inlet and outlet water strain distinction within the random manual 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 distinction to determine which part 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 needs to be in regular condition)

After 30 minutes of energy on, check the system or chilled water system inlet and outlet thermometer via the unit control system parameters.
The inlet water temperature and outlet water temperature could be learn when the unit is working. The distinction have to be about 4-6 levels.
If the difference between the inlet and outlet water temperatures is merely too giant, the water system is flowing too little water by way of the plates. This may cause the gear to fail to operate properly or be damaged.
3. Pump operating present detection

By detecting the running present of the fridge water pump, and the rated present for comparison. You can determine whether the precise water flow is bigger than or lower than the rated water move of the pump.
Combined with the previous parameters comprehensive judgment. In order to get an correct chiller system take a look at 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 decrease than zero degrees. It signifies that the water circulate within the water side heat exchanger just isn’t enough, which causes the evaporation temperature and evaporation pressure to drop.
and causes Freon to still evaporate and absorb heat from the suction tube flowing from the evaporator to the compressor. It will result in the compressor suction temperature under 0 degrees.
In addition, it is necessary to get rid of the drop of evaporating stress and evaporating temperature brought on by low water temperature setting value.
Non-standard low water temperature unit may be thought of regular so long as the compressor suction superheat diploma is 6-8 degrees Celsius.
So under the traditional water move. The compressor suction temperature is generally greater than 0℃. Below this worth, the water system downside needs to be excluded.
Extended reading:
Solvent flow meter

Sewage flowmeter

Oil and gas flow meter

Relation between flow and pressuree