CN210802939U - Air cleaner energy consumption contrast testing arrangement - Google Patents
Air cleaner energy consumption contrast testing arrangement Download PDFInfo
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- CN210802939U CN210802939U CN201920854894.9U CN201920854894U CN210802939U CN 210802939 U CN210802939 U CN 210802939U CN 201920854894 U CN201920854894 U CN 201920854894U CN 210802939 U CN210802939 U CN 210802939U
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Abstract
The utility model discloses an air cleaner energy consumption contrast testing arrangement, including tuber pipe system, data acquisition transmission system, automatically controlled cabinet, tuber pipe system includes rain-proof cover, filter chamber, and the amount of wind measures section, fan and the section of airing exhaust, and data acquisition transmission system includes instrumentation, wireless PLC, and its main function is that detect electric quantity and non-electric quantity signal, signal extension, transmit user's end etc. through the internet, install frequency conversion distribution device, intelligent electric energy meter and wireless PLC in the automatically controlled cabinet, and the main function is the rotational speed of adjusting the fan, provides the power for testing arrangement, the power consumption that the measurement consumed. By means of the device, the resistance energy consumption of the air filter can be obtained by measuring the power consumption of the fan under the condition of atmospheric dust, and the resistance energy consumption of the air filter under the actual operation condition can be truly reflected.
Description
Technical Field
The utility model relates to an air cleaner performance detects technical field, indicates an air cleaner energy consumption contrast testing arrangement especially.
Background
Air cleaner extensively applies to each field of national economy such as office building, turbo machinery, clean factory building, hospital, and the energy consumption total is big, and relevant statistics shows: in a general office building, the energy consumption of HVAC equipment accounts for about 40 percent of the building energy consumption, the energy and the electricity of the HVAC equipment in a clean factory building account for 80 percent of the total energy consumption, wherein the energy consumption of a fan accounts for 50 percent of the energy consumption of the HVAC equipment, a large part of the energy consumption of the fan comes from the resistance of an air filter, and the resistance energy consumption accounts for 10 to 30 percent of the energy consumption of the fan; in gas turbine inlet filtration applications, for every 25mm of water column increase in air filter resistance, 0.5% more gas turbine output will be consumed, while heat loss will increase by 0.1%. Therefore, in practical applications, the resistance energy consumption of the air filter is not negligible.
To evaluate the energy consumption of air filters, the european ventilation association issued a filter energy consumption evaluation specification EUROVENT 4/11 based on the EN779 standard, which calculated the filter resistance energy consumption according to the curve of filter resistance against dust holding capacity and the dust holding capacity tested by the EN779 standard, and ranked the filter energy consumption in combination with the filtration efficiency tested by EN 779. However, the manual load dust and atmospheric dust characteristics adopted for measuring the dust holding capacity change curve have large differences, the dust holding capacity under final pressure is closely related to the atmospheric dust characteristics, the resistance and the dust holding capacity of the tested filter cannot accurately predict the resistance characteristics and the final resistance of the filter under the atmospheric dust, and the energy consumption calculated on the basis cannot reflect the actual energy consumption level of the air filter. Although the air filter is not included in the product range of energy efficiency enforcement in China, the energy consumption of the air filter is really tested, and the method has practical guiding significance for selecting the air filter with high filtering efficiency and low energy consumption.
SUMMERY OF THE UTILITY MODEL
In order to achieve the above object, the utility model adopts the following technical scheme: an energy consumption comparison testing device of an air filter comprises an air pipe system, a data acquisition and transmission system and an electric control cabinet, wherein the air pipe system comprises a rain cover, a filtering chamber, an air quantity measuring section, a fan, an air exhaust section and the like, the filtering chamber is provided with a filter to be tested, a driving motor of the fan is a variable frequency motor, the data acquisition and transmission system comprises a detection instrument, a wireless PLC and an intelligent electric meter, the detection instrument comprises a filter differential pressure transmitter, an air quantity measuring device and a variable frequency power distribution device, the differential pressure transmitter is arranged at the upstream and downstream of the filtering chamber, the air quantity measuring device is arranged at the air quantity measuring section, the variable frequency power distribution device, the intelligent electric meter and the wireless PLC are arranged in the electric control cabinet, the detection instrument, the intelligent electric meter and the wireless PLC are electrically connected, and the output end of the wireless, the output end of the variable-frequency power distribution device is electrically connected with the input end of the fan motor, the CT and PT of the intelligent electric meter are electromagnetically connected with a feeder circuit of the motor in the variable-frequency power distribution device, and the wireless PLC is connected with the client through the Internet.
The air pipe system, the data acquisition and transmission system and the electric control cabinet are all arranged inside the integrated box.
The principle of the utility model is that: the method comprises the steps of utilizing ambient air as a test air source, controlling the air speed of an air pipe system to be under the nominal air speed of a filter to be tested through a wireless PLC and a variable frequency power distribution device, testing the power consumption of a fan when the filter is not installed, installing the filter to be tested, detecting the power consumption of the fan in real time, and finishing the test when the differential pressure of the filter reaches a final value. During the test, the input power of the fan needs to overcome the on-way resistance and the local resistance of the air pipe system and the resistance of the filter. Under the condition of a certain air quantity, the on-way resistance and the local resistance of the air pipe system do not have great difference along with the changes of the atmospheric temperature, the humidity and the dust content, the resistance of the filter can continuously increase along with the extension of the test time, the dust holding capacity is increased, the resistance is increased along with the increase of the resistance, and therefore the energy consumption for overcoming the resistance of the filter is equal to the difference between the total energy consumption of the test device and the energy consumption of the air pipe system, and the energy consumption of the filter is measured.
The beneficial effects of the utility model reside in that: because the air filter is tested in the atmosphere dust environment, the energy consumption of the tested air filter truly reflects the actual operation energy consumption, and a reliable basis is provided for selecting the air filter with low energy consumption and high filter efficiency; the testing device is arranged in the integrated box, and the test bed can be moved to the use area of the air filter to perform energy consumption testing according to needs. The test data are transmitted to the server through the network, and the server can be logged in to browse or download the data in real time, so that unattended operation is realized, and the performance test intensity is reduced.
Drawings
FIG. 1 is a flow chart of the present invention;
fig. 2 is a perspective view of the present invention;
FIG. 3 is a schematic diagram of the wind speed closed loop control structure of the present invention;
fig. 4 is a remote transmission topology of the present invention.
The reference numbers illustrate: 1. an air duct system; 2. a rain cover; 3. a filtering chamber; 4. an air quantity measuring section; 5. a fan; 6. emptying the pipe; 7. a support; 8. an electric control cabinet; 9. an integration box; 10. a differential pressure transmitter; 11. an air volume measuring device; 12. a wireless PLC; 13 variable frequency power distribution devices; 14. and the intelligent electric meter is 15, and the filter to be tested is adopted.
Detailed Description
Embodiment 1, please refer to fig. 1 and 2, in this embodiment, a negative pressure operation system with a blower installed at the end of an air duct system is adopted, and 2 air duct systems are installed and arranged in a single row in an integrated box 9 and fixed on a bracket 7 through a fastener. Every tuber pipe system 1 all is equipped with rain-proof cover 2, filter chamber 3, amount of wind measurement section 4 in proper order, fan 5, evacuation pipe 6. Sampling pipes are led out from the upstream and downstream of the filtering chamber 3 and are connected with high and low pressure inlets of a differential pressure transmitter 10, and an air volume measuring device 11 is installed in the air volume measuring section 4. The filter 15 to be tested is installed in the filter chamber 3 of the air duct system 1.
The variable-frequency power distribution device 13, the intelligent electric meter 14 and the wireless PLC12 of the testing device are installed in the electric control cabinet. The detection instrument, the intelligent electric meter and the wireless PLC are electrically connected, the wireless PLC is connected with the client through the Internet, the output end of the variable-frequency power distribution device is electrically connected with the input end of the fan motor, and the intelligent electric meter is electromagnetically connected with a feeder circuit of the motor in the variable-frequency power distribution device.
The air pipe system 1 and the electric control cabinet 8 are both arranged inside the integrated box 9.
According to the rated air quantity of the existing filter, the rated air quantity and the full pressure of the fan 5 are respectively designed to be 6000Nm3And h, 3000Pa, and a matched motor is a variable frequency motor.
According to the selection of the fan 5 and the size of the filter, the size of the air pipe system is 610x610 square pipes, the materials are all galvanized carbon steel, and the thickness is 5 mm.
The range of the pressure transmitter 10 is 0KPa to 3 KPa. The measuring range of the air quantity measuring device 11 is 1.2 times of the rated air quantity of the fan 5.
Example 2, please refer to fig. 1. The intelligent electric meter 14 is arranged in front of the variable-frequency power distribution device 13, and the CT and the PT in a metering loop of the intelligent electric meter are electromagnetically connected with a feeder line loop of a power supply; the power supply output end of the variable-frequency power distribution device 13 is electrically connected with the motor input end of the fan 5; physical quantity signals detected by a smart meter 14 in the differential pressure transmitter 10, the air quantity measuring device 11 and the variable-frequency power distribution device 13 are sent to the wireless PLC12, signals detected by the air quantity measuring device 11 are expanded into 2 signals in the PLC12, one signal is used for remote transmission, and the other signal is used as a feedback signal of the variable-frequency power distribution device 13.
As shown in fig. 3, the air volume of the duct system 1 is maintained constant by adopting a closed-loop regulation method. Setting air quantity on an operation panel of the variable-frequency power distribution device 13, and when the set air quantity is different from the measured value of the current air quantity measuring device 11, adjusting the feed frequency by the variable-frequency power distribution device 13, and changing the rotating speed of the fan until the actually measured air quantity is consistent with the set air quantity. In the testing process, along with the lengthening of the testing time, the dust holding capacity of the air filter is increased, the resistance is also increased, and the constant air volume of the air pipe system 1 can be maintained through the closed-loop regulation of the variable-frequency power distribution device 13.
In embodiment 3, referring to fig. 4, the differential pressure transmitter 10, the air volume measuring device 11 upload data to the wireless PLC12, the wireless PLC12 receives signals of the differential pressure transmitter 10, the air volume measuring device 11, and the smart meter, and transmits the signals to the server through the network, and the server can log in at the client to browse or download data in real time, so that unattended operation of the test is realized.
In the actual measurement embodiment 4, before the test, firstly, a set value of the air volume is input on the variable frequency power distribution device 13, and the set value is equal to the rated air volume of the filter 15 to be tested; in the second step, no-load test is carried out under the condition that the filter 15 is not installed, and the test time T after the air quantity is stable is recorded0And the amount W of electricity used0(ii) a And thirdly, stopping the machine, installing the filter 15 to be tested, starting the machine, starting timing after the air volume is stable, and stopping the test when the differential pressure of the filter 15 reaches a final value. In the fourth step, the energy consumption of the air filter 15 is calculated according to the following formula from the data downloaded from the computer.
W＝WT-W0/T0*T
Formula (III) T, WTThe time and power consumption required for the differential pressure of the filter 15 to reach the final value are respectively.
The above embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by the technical solution of the present invention by those skilled in the art are all within the scope of the present invention as defined by the claims.
Claims (6)
1. The utility model provides an air cleaner energy consumption contrast testing arrangement which characterized in that: the air pipe system comprises a rain cover, a filter chamber, an air quantity measuring section, a fan, an air exhaust section and the like, a filter to be tested is installed in the filter chamber, a driving motor of the fan is a variable frequency motor, the data acquisition and transmission system comprises a detection instrument and a wireless PLC, the detection instrument comprises a filter differential pressure transmitter, an air quantity measuring device and a variable frequency power distribution device, the differential pressure transmitter is installed at the upstream and downstream of the filter chamber, the air quantity measuring device is installed in the air quantity measuring section, the variable frequency power distribution device, an intelligent electric meter and the wireless PLC are installed in the electric control cabinet, the detection instrument, the intelligent electric meter are electrically connected with the wireless PLC, the wireless PLC is connected with a client through the Internet, and the output end of the variable frequency power distribution device is electrically connected with the input end of the fan motor, and the intelligent electric meter is electromagnetically connected with a feeder line loop of a motor in the variable-frequency power distribution device.
2. An air filter energy consumption contrast test device according to claim 1, characterized in that: the air pipe system and the electric control cabinet are arranged inside the integrated box.
3. An air filter energy consumption contrast test device according to claim 1, characterized in that: the variable frequency power distribution device in the electric control cabinet is provided with the intelligent ammeter so as to test the power consumption of the motor matched with the fan and realize real-time measurement of the energy consumption of the air filter.
4. An air filter energy consumption contrast test device according to claim 1, characterized in that: the variable-frequency power distribution device, the intelligent electric meter and the wireless PLC are integrated in the electric control cabinet.
5. An air filter energy consumption contrast test device according to claim 1, characterized in that: the number of the air pipe systems is 2.
6. An air filter energy consumption contrast test device according to claim 1, characterized in that: the wireless PLC is connected with the client through the Internet.
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| CN201920854894.9U CN210802939U (en) | 2019-06-05 | 2019-06-05 | Air cleaner energy consumption contrast testing arrangement |
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| CN201920854894.9U CN210802939U (en) | 2019-06-05 | 2019-06-05 | Air cleaner energy consumption contrast testing arrangement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082142A (en) * | 2019-06-05 | 2019-08-02 | 赫利斯过滤器南京有限公司 | A kind of air filter energy consumption comparison test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082142A (en) * | 2019-06-05 | 2019-08-02 | 赫利斯过滤器南京有限公司 | A kind of air filter energy consumption comparison test device |
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