CN209783659U - heating ventilation air conditioner flow measurement system - Google Patents
heating ventilation air conditioner flow measurement system Download PDFInfo
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- CN209783659U CN209783659U CN201920549523.XU CN201920549523U CN209783659U CN 209783659 U CN209783659 U CN 209783659U CN 201920549523 U CN201920549523 U CN 201920549523U CN 209783659 U CN209783659 U CN 209783659U
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- water pump
- differential pressure
- air conditioner
- flow measurement
- measurement system
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Abstract
The utility model relates to a heating and ventilation air conditioner flow measurement system belongs to the flow measurement field, through setting up industrial computer, differential pressure sensor and water pump, the water pump pass through the converter with the industrial computer electricity is connected, differential pressure sensor dispose in the both ends of water pump, differential pressure sensor with the industrial computer electricity is connected, through the pressure difference at industrial computer monitoring water pump both ends and the frequency of water pump, can calculate the flow of surveying the pipeline according to the characteristic curve of water pump operation. The heating ventilation air conditioner flow measurement system is simple to install and operate, low in cost, applicable to non-full flow pipelines, high in measured data accuracy, and high in applicability and popularization significance.
Description
Technical Field
The utility model belongs to the flow measurement field, in particular to heating and ventilation air conditioner flow measurement system.
Background
The air handling scheme and capacity of the treatment equipment of the hvac system is determined when the outdoor air is at its worst in winter and summer design parameters and the indoor load. However, in most areas of China, outdoor air parameters are usually between design parameters of winter and summer, and indoor load is also constantly changed, so that the heating, ventilating and air conditioning system needs to make corresponding operation adjustment according to the change of load required by the tail end. The water is used as a main energy transmission medium of the heating, ventilating and air conditioning system, and the flow parameter of the water is important for the operation regulation of the heating, ventilating and air conditioning system.
In the heating ventilation air-conditioning system, the existing method for measuring the flow rate usually adopts a flowmeter, but because of the price, the positions for installing the flowmeters on pipelines are few, and some systems even do not install flowmeters; when the flow demand of the pipeline is acquired, only an ultrasonic flowmeter can be used, but the flowmeter is expensive and complex to operate, the pipeline is required to be fully flowed, and otherwise, the measurement data is inaccurate.
Therefore, a flow measurement system needs to be designed to solve the problems that the existing heating ventilation air conditioning system is lack of a flow meter and the measurement of an ultrasonic flow meter is inaccurate.
SUMMERY OF THE UTILITY MODEL
In order to overcome prior art's defect, the utility model provides a heating and ventilation air conditioner flow measurement system, through setting up industrial computer and pressure differential sensor, the industrial computer passes through the converter and connects the water pump, pressure differential sensor locates the both ends of water pump, and the flow of water pump can be calculated out through the pressure differential at survey water pump frequency and water pump both ends.
The technical scheme for realizing the purpose is as follows:
The utility model provides a heating ventilation air conditioner flow measuring system, which comprises an industrial personal computer and a water pump, wherein the water pump is arranged on an air conditioner pipeline to be measured and is connected with the industrial personal computer through a frequency converter;
The industrial personal computer is further connected with a differential pressure sensor, two metal guide pipes of the differential pressure sensor are installed on an air conditioner pipeline to be detected, and the two metal guide pipes of the differential pressure sensor are respectively arranged at two ends of the water pump and used for monitoring the differential pressure of the water pump.
The utility model relates to a heating ventilation air-conditioning flow measurement system is further arranged in that the frequency converter is electrically connected with the water pump for monitoring the frequency of the water pump; the industrial personal computer is electrically connected with the frequency converter and is used for monitoring frequency conversion data of the frequency converter.
The utility model relates to a heating and ventilation air conditioner flow measurement system's further sets up to, the industrial computer with the differential pressure sensor electricity is connected and is used for the monitoring differential pressure sensor's differential pressure data.
has the advantages that: compared with the prior art, the utility model discloses a difference lies in, the utility model provides a pair of heating and ventilation air conditioner flow measurement system is through setting up industrial computer, differential pressure sensor and water pump, the water pump pass through the converter with the industrial computer electricity is connected, differential pressure sensor disposes in the both ends of water pump, differential pressure sensor with the industrial computer electricity is connected, through the pressure difference at industrial computer monitoring water pump both ends and the frequency of water pump, can calculate the flow of survey pipeline, this heating and ventilation air conditioner flow measurement system installation, easy operation, it is with low costs, also be suitable for equally to non-full flow pipeline, the data degree of accuracy of surveying is high, has very big suitability and very high popularization meaning.
drawings
Fig. 1 is a schematic view of a heating, ventilation and air conditioning flow measurement system according to a preferred embodiment of the present invention.
Fig. 2 is the water pump operating characteristic curve chart of the present invention.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
Referring to fig. 1, the utility model provides a heating ventilation air-conditioning flow measuring system, which comprises an industrial personal computer 1 and a water pump 2, wherein the water pump 2 is installed on an air-conditioning pipeline 3 to be measured, and the water pump 2 is connected with the industrial personal computer 1 through a frequency converter 4;
the industrial personal computer 1 is further connected with a differential pressure sensor 5, two metal guide pipes of the differential pressure sensor 5 are installed on the air conditioner pipeline 3 to be detected, and the two metal guide pipes of the differential pressure sensor 5 are respectively arranged at two ends of the water pump 2 and used for monitoring the differential pressure of the water pump 2.
Preferably, but not limited to, the frequency converter 4 is electrically connected with the water pump 2 to monitor the frequency of the water pump 2; the industrial personal computer 1 is electrically connected with the frequency converter 4 and is used for monitoring frequency conversion data of the frequency converter 4.
Preferably, but not limited to, the industrial personal computer 1 is electrically connected with the differential pressure sensor 5 to monitor the differential pressure data of the differential pressure sensor 5.
When the method is used, the method is firstly communicated with a manufacturer of the water pump to obtain a characteristic curve of the water pump 2, then the industrial personal computer 1 is started to monitor data of the frequency converter 4 and the differential pressure sensor 5, the flow value of the pipeline 3 where the water pump 2 is located can be calculated through the frequency of the water pump 2 monitored by the frequency converter 4 and the differential pressure at two ends of the water pump 2 monitored by the differential pressure sensor 5, and the method can be suitable for water pipes with full flow and water pipes with non-full flow.
The operating characteristic curve of the water pump is shown in fig. 2, and when the frequency of the water pump and the pressure difference between two ends of the water pump are obtained, the flow of the water pump can be calculated. A water pump manufacturer can provide a characteristic curve at the frequency of 50Hz, and the characteristic curve of the water pump at any frequency can be drawn according to the rule that the characteristic curves at different frequencies are similar. The water pump flow can be obtained by the water pump frequency, the water pump pressure difference and the water pump characteristic curve.
the above embodiments are merely preferred embodiments of the present disclosure, which are not intended to limit the present disclosure, and any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present disclosure, should be included in the scope of the present disclosure.
Claims (3)
1. The utility model provides a heating leads to air conditioner flow measurement system, includes industrial computer and water pump, its characterized in that:
the water pump is arranged on an air conditioner pipeline to be tested and is connected with the industrial personal computer through a frequency converter;
The industrial personal computer is further connected with a differential pressure sensor, two metal guide pipes of the differential pressure sensor are installed on an air conditioner pipeline to be detected, and the two metal guide pipes of the differential pressure sensor are respectively arranged at two ends of the water pump and used for monitoring the differential pressure of the water pump.
2. The hvac flow measurement system of claim 1, wherein:
the water pump is electrically connected with the frequency converter;
The frequency converter is electrically connected with the industrial personal computer.
3. The hvac flow measurement system of claim 1, wherein:
The pressure difference sensor is electrically connected with the industrial personal computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920549523.XU CN209783659U (en) | 2019-04-22 | 2019-04-22 | heating ventilation air conditioner flow measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920549523.XU CN209783659U (en) | 2019-04-22 | 2019-04-22 | heating ventilation air conditioner flow measurement system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209783659U true CN209783659U (en) | 2019-12-13 |
Family
ID=68803507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920549523.XU Active CN209783659U (en) | 2019-04-22 | 2019-04-22 | heating ventilation air conditioner flow measurement system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209783659U (en) |
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2019
- 2019-04-22 CN CN201920549523.XU patent/CN209783659U/en active Active
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