Chilled water circulate meter is a flowmeter that can be used to measure low temperature water. Common chilled water flowmeters include electromagnetic circulate meters, turbine move meters and ultrasonic move meters. Used in condensing methods, chillers or HVAC. there are a number of circulate and vitality measurement opportunities in chilled water methods and Apure provides a range of chilled water circulate meter technologies which may be particularly well suited to this difficult application. Some issues for drive expertise selection embody set up necessities, accuracy necessities and upkeep implications. Apure’s insertion turbine and insertion electromagnetic flowmeters are simple to install in new or present techniques, provide correct measurements over a extensive range of circulate regulation, and provide years of trouble-free service in closed-loop hydronic systems.
For installations requiring the very best accuracy, such as cost allocation, efficiency contracting or sub-metering, in-line electromagnetic flowmeters could also be one of the best solution. But there isn’t a best chilled water move meter, only essentially the most appropriate one. This is as a result of the main points of each pipeline utility are completely different. According to the actual measurement state of affairs, choose probably the most appropriate flowmeter. It can save plenty of time and cost.
Depending on the necessities of the chilled water software, other Apure meters may be extra appropriate. Please review the meters beneath or feel free 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 set up flow meter in chilled water?
In order to make sure the correct measurement of chilled water flow meter, the installation position and method should 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 a minimal of 2D straight pipe section. If the set up web site permits, it is strongly 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 installation level is the same as that of the flowmeter.
Requirements on by-pass pipe: In order to guarantee that the upkeep of the flowmeter does not affect the traditional use of the medium, the cut-off valve (cut-off valve) must be put in on the entrance and rear pipes of the turbine flowmeter, and the by-pass pipe must be set on the same time. Flow control valve to be put in in the downstream of the flow meter, the upstream put in cut-off valve must be absolutely open when in use, to avoid the upstream a half of the fluid produced unstable circulate phenomenon.
The necessities of the external surroundings: it’s best to install within the indoor, should be put in within the out of doors, should use sunscreen, rain. Lightning protection measures, in order to not affect service life.
Requirements for impurities within the medium: In order to ensure the service life of the flowmeter, the filter ought to be installed in entrance of the straight pipe section of the flowmeter.
Installation site: The flowmeter should be put in in a place that’s simple 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 info.
The electrical insulation of the electromagnetic flowmeter transmitter.
Can ultrasonic circulate meters measure chilled water flow?
Ultrasonic flowmeter can measure the flow fee. The temperature mustn’t exceed -40℃~160℃. Requires a complete take a look at tube and uniform medium. It can show instantaneous move price, flow rate, cumulative flow fee and cumulative working time.
Ultrasonic calorimeter can measure warmth provide, move price 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 move measurement technique. We hope it is going to be helpful to you.
1. Chiller into and out of the water pressure detection of water pipes
By detecting the return water pressure and outlet water stress values. Check the water circulate rate of the chiller under the inlet and outlet water stress distinction in the random handbook of the chiller.
Refer to the corresponding unit water move fee table or chart within the handbook. Thus, decide whether or not the refrigeration system is normal or not.
And by this distinction to determine which section of the transmission pipe resistance value is larger. And develop the corresponding rectification plan and action.
2. Test the refrigerator return water temperature and water temperature (the unit needs to be in normal condition)
After 30 minutes of power on, verify 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 running. The difference must be about 4-6 levels.
If the distinction between the inlet and outlet water temperatures is too large, the water system is flowing too little water through the plates. This may cause the gear to fail to function properly or be damaged.
three. Pump working present detection
By detecting the working current of the fridge water pump, and the rated current for comparability. You can determine whether or not the precise water move is larger than or less than the rated water flow of the pump.
Combined with the previous parameters comprehensive 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 30 minutes
The compressor suction temperature is detected to be lower than zero degrees. It signifies that the water move within the water facet heat exchanger is not enough, which causes the evaporation temperature and evaporation stress to drop.
and causes Freon to still evaporate and take in warmth from the suction tube flowing from the evaporator to the compressor. It will lead to the compressor suction temperature below 0 levels.
In addition, it is necessary to remove the drop of evaporating stress and evaporating temperature brought on by low water temperature setting value.
Non-standard low water temperature unit could be considered normal as lengthy as the compressor suction superheat degree is 6-8 degrees Celsius.
So beneath the traditional water circulate. The compressor suction temperature is mostly larger than 0℃. Below this worth, the water system downside needs to be excluded.
Extended studying:
Solvent move meter
Sewage flowmeter
Oil and fuel move meter
Relation between move and pressuree
#keyword# can sometimes seem difficult but if you use these tips, you are going to get to where you want to go. Don’t make the mistake of setting yourself up for mass confusion; you can only handle so much at one time. And then, as #keyword# becomes more easy to undestand you can set your sights higher. Broadening your mind and horizons is always a good option and you definitely want to learn as much as you can, so think about paying #links# a visit to do just that.
Chilled water flow meter is a flowmeter that can be used to measure low temperature water. Common chilled water flowmeters include electromagnetic flow meters, turbine move meters and ultrasonic flow meters. Used in condensing systems, chillers or HVAC. there are multiple circulate and energy measurement opportunities in chilled water techniques and Apure provides a range of chilled water circulate meter applied sciences which are particularly nicely suited to this challenging application. Some concerns for drive technology choice include installation requirements, accuracy requirements and maintenance implications. Apure’s insertion turbine and insertion electromagnetic flowmeters are simple to install in new or existing techniques, present accurate measurements over a broad range of move regulation, and supply years of trouble-free service in closed-loop hydronic techniques.
For installations requiring the best accuracy, such as price allocation, performance contracting or sub-metering, in-line electromagnetic flowmeters could additionally be one of the best answer. But there is no greatest chilled water move meter, solely probably the most appropriate one. This is because the details of each pipeline software are totally different. According to the precise measurement scenario, select probably the most suitable flowmeter. It can save plenty of time and value.
Depending on the necessities of the chilled water application, other Apure meters may be extra suitable. Please evaluate the meters beneath or feel free 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 circulate meter, the set up place and method must be accurately chosen
Requirements for straight pipe part: it have to be installed horizontally on the pipe (the pipe tilt is less than 5). During set up, the flowmeter axis should be concentric with the pipe axis and circulate direction must be consistent. The size of the upstream pipe ought to be no much less than 2D straight pipe section. If the set up website permits, it is recommended that the upstream straight pipe part be 20D and the downstream pipe section be 5D.
digital pressure gauge 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 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 control valve to be installed within the downstream of the circulate meter, the upstream installed cut-off valve have to be totally open when in use, to keep away from the upstream a half of the fluid produced unstable move phenomenon.
The requirements of the exterior environment: it is best to put in in the indoor, must be installed in the out of doors, must use sunscreen, rain. Lightning safety measures, so as not to affect service life.
Requirements for impurities within the medium: In order to make sure the service life of the flowmeter, the filter ought to be put in in entrance of the straight pipe section of the flowmeter.
Installation website: The flowmeter must be installed in a spot that’s simple to take care of and free from sturdy electromagnetic interference and thermal radiation.
What are the restrictions of electromagnetic flowmeter at low temperature?
The low-temperature resistance of the data.
The electrical insulation of the electromagnetic flowmeter transmitter.
Can ultrasonic flow meters measure chilled water flow?
Ultrasonic flowmeter can measure the flow fee. The temperature should not exceed -40℃~160℃. Requires a complete check tube and uniform medium. It can display instantaneous flow fee, flow fee, cumulative flow price and cumulative operating time.
Ultrasonic calorimeter can measure heat provide, move price and temperature monitoring. Air conditioning heating and cooling capacity measurement.
How to measure the chilled water circulate price of a chiller??
The following is our experience sharing: chiller chilled water move measurement method. We hope it will be helpful 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 rate of the chiller beneath the inlet and outlet water strain distinction within the random manual of the chiller.
Refer to the corresponding unit water move fee desk or chart in the manual. Thus, decide whether the refrigeration system is regular or not.
And by this difference to determine which part of the transmission pipe resistance worth is greater. And develop the corresponding rectification plan and motion.
2. Test the fridge return water temperature and water temperature (the unit must be in normal condition)
After half-hour of energy on, examine the system or chilled water system inlet and outlet thermometer via the unit management system parameters.
The inlet water temperature and outlet water temperature may be learn when the unit is running. The difference have to be about 4-6 levels.
If the difference between the inlet and outlet water temperatures is too massive, the water system is flowing too little water by way of the plates. This could trigger the equipment to fail to function properly or be broken.
3. Pump running current detection
By detecting the running current of the refrigerator water pump, and the rated present for comparability. You can decide whether or not the precise water circulate is bigger than or lower than the rated water move of the pump.
Combined with the earlier parameters complete judgment. In order to get an correct chiller system check and evaluation 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 decrease than zero degrees. It implies that the water flow in the water facet heat exchanger isn’t sufficient, which causes the evaporation temperature and evaporation stress to drop.
and causes Freon to still evaporate and take up heat from the suction tube flowing from the evaporator to the compressor. It will result in the compressor suction temperature beneath 0 degrees.
In addition, it’s necessary to remove the drop of evaporating stress and evaporating temperature caused by low water temperature setting value.
Non-standard low water temperature unit may be thought-about regular as long 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 drawback needs to be excluded.
Extended studying:
Solvent flow meter
Sewage flowmeter
Oil and gas flow meter
Relation between move and pressuree