CN217132268U - Air volume control and regulation device of air system test platform - Google Patents
Air volume control and regulation device of air system test platform Download PDFInfo
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- CN217132268U CN217132268U CN202220686820.0U CN202220686820U CN217132268U CN 217132268 U CN217132268 U CN 217132268U CN 202220686820 U CN202220686820 U CN 202220686820U CN 217132268 U CN217132268 U CN 217132268U
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Abstract
The utility model relates to a wind system platform device measurement control technical field. Including wind system test platform, switch board, host computer, wind system test platform includes: fan, plenum, set up in data acquisition device, standard nozzle on the plenum still include host computer, surveyed the component, data acquisition device includes antechamber humiture measurement meter, antechamber pressure measurement meter, back room pressure measurement meter, the switch board includes PLC controller, analog quantity module, digital quantity module, switching power supply, fuse, touch-sensitive screen and fan converter, the real-time data collection that upload was received to the host computer, calculates and obtains the concrete amount of wind of flowing through the plenum and matches with the settlement amount of wind of being surveyed the component. The utility model discloses a data acquisition device data acquisition calculates the plenum amount of wind, then sets for the amount of wind with the measured component and carries out the comparison, utilizes the comparative result by the real-time automatically regulated fan frequency of PLC controller, makes the fan provide the amount of wind and satisfies the settlement condition.
Description
Technical Field
The invention relates to the technical field of automatic measurement and control of a wind system platform device, in particular to an air quantity adjusting device of a wind system testing platform.
Background
At present, industries such as bio-pharmaceuticals, electronics, hospitals and the like are closely related to an air conditioning air system, a large amount of research is put into the field of the air conditioning air system, various air system test platforms are set up for accurately measuring air conditioning air quantity, but most of the existing air system measuring devices rely on an air quantity cover for measuring the air quantity provided by a fan, the air quantity cover often needs high tightness in order to ensure the accuracy of air quantity measurement during measurement, and the measurement personnel are difficult to measure and time and labor are wasted. The automatic air quantity adjusting device of the air system testing platform can realize automatic measurement of the air quantity of the testing system, the accuracy of the air quantity of the fan is guaranteed, the inconvenience of manual measurement is greatly improved, and the measuring speed and the experimental speed are obviously improved due to the use of the automatic control device.
SUMMERY OF THE UTILITY MODEL
The utility model provides an air system test platform air volume control adjusting device, includes air system test platform, switch board, host computer, air system test platform includes: fan, plenum, set up in data acquisition device, standard nozzle on the plenum still include host computer, surveyed the component, data acquisition device includes preceding room humiture meter, preceding room pressure meter, back room pressure meter, the switch board includes PLC controller, analog quantity module, digital quantity module, switching power supply, fuse, touch-sensitive screen and fan converter, the real-time data collection that upload is received to the host computer (using PC as the owner) is calculated and is obtained the concrete amount of wind of the plenum of flowing through and is matchd by the settlement amount of wind of survey component.
The data that utilize the switch board can be gathered data acquisition instrument are uploaded to the host computer in, realize uploading of data, also can convey the fan frequency control signal that the host computer was issued to the fan converter, realize the change of fan frequency.
Further, the collected data comprises the temperature and humidity of the front chamber, the pressure of the rear chamber and the calculated pressure difference between the front and the rear of the nozzle of the air chamber.
Furthermore, the analog quantity module is responsible for processing signals of the sensor and the air valve.
Furthermore, the digital input/output module is responsible for processing system start-stop signals, alarm indicator lights and fan start-stop signals.
Further, the measured member includes: the tested component comprises an air valve and a local resistance component, wherein the local resistance component comprises an air pipe, a transition piece, an elbow and an air opening.
Furthermore, the data acquisition device further comprises a front chamber static pressure measuring meter, a testing front section pressure measuring meter and a testing rear section pressure measuring meter, wherein the front chamber static pressure measuring meter is arranged at the front end of the air chamber and used for measuring front chamber static pressure, and the testing front section pressure measuring meter and the testing rear section pressure measuring meter are respectively arranged on a front section air pipe and a rear section air pipe of the tested member and used for measuring front and rear pressure difference of the tested member and monitoring pressure drop change of air volume after passing through the tested member.
The utility model discloses a technical scheme pass through data acquisition device collection data and calculate the plenum amount of wind, then set for the amount of wind with the measured component and carry out the comparison, utilize the comparative result by the real-time automatically regulated fan frequency of PLC controller, make the fan provide the amount of wind and satisfy the settlement condition.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
FIG. 2 is a logic diagram of wind volume calculation control for a wind system test platform.
A wind system test platform 1; a fan 2; a fan frequency converter 3; a control cabinet 4; a front chamber humiture measuring meter 5; an antechamber pressure gauge 6; a back chamber pressure gauge 7; a standard nozzle 8; an upper computer 9; and (6) a component to be tested.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings.
The utility model provides an air system test platform air volume control adjusting device, includes air system test platform 1, switch board 4, host computer 9, air system test platform 1 includes: fan 2, plenum, set up in data acquisition device, standard nozzle 8 on the plenum still include host computer 9, surveyed component 10, data acquisition device includes antechamber humiture meter 5, antechamber pressure meter 6, back room pressure meter 7, switch board 4 includes PLC controller, analog quantity module, digital quantity module, switching power supply, fuse, touch-sensitive screen and fan converter 3, host computer 9 (using PC as the owner) receives the real-time data collection that upload of switch board 4, calculates to obtain the specific amount of wind of flowing through the plenum after and is matchd by the settlement amount of wind of surveying the component.
The control cabinet 4 can upload data collected by the data collection instrument to the upper computer 9 to upload the data, and a fan frequency adjusting signal sent by the upper computer 9 can be transmitted to the fan frequency converter 3 to change the fan frequency.
The collected data comprises the temperature and humidity of the front chamber, the pressure of the rear chamber and the calculated differential pressure of the front and rear air chamber nozzles.
And the analog quantity module is responsible for processing signals of the sensor and the air valve.
The digital quantity input and output module is responsible for processing system start-stop, alarm indicator light and fan start-stop signals.
The measured component 10 comprises an air valve and a local resistance component, wherein the local resistance component comprises an air pipe, a transition piece, an elbow and an air opening.
The data acquisition device further comprises a front chamber static pressure measuring meter 12, a testing front section pressure measuring meter 13 and a testing rear section pressure measuring meter 14, wherein the front chamber static pressure measuring meter 13 is arranged at the front end of the air chamber and used for measuring front chamber static pressure, and the testing front section pressure measuring meter 13 and the testing rear section pressure measuring meter 14 are respectively arranged on a front section air pipe and a rear section air pipe of the tested member 10 and used for measuring front and rear pressure difference of the tested member 10 and monitoring pressure drop change of air volume after passing through the tested member 10.
The matching method of the specific air volume flowing through the air chamber and the set air volume of the tested component is as follows: the set air quantity S1 of the tested component 10 is started, the fan 2 is started, any initial frequency of the fan 2 is given by the upper computer 9, the fan 2 starts to supply air, data measurement is carried out by each data acquisition device in the air chamber 11 and is uploaded to the control cabinet 4, instrument acquisition information is uploaded to the upper computer 9 by the control cabinet 4, the upper computer 9 carries out data processing and calculation on the data information acquired by the data acquisition devices to obtain an air chamber calculated air quantity S2, the air chamber calculated air quantity S2 is compared with the set air quantity S1 of the tested component, if the difference between the air chamber calculated air quantity S2 and the set air quantity S1 of the tested component meets the convergence relationship (the convergence condition can be set according to the specific air quantity difference requirement, the device is set to be 5 percent of the air chamber calculated air quantity S2), the fan frequency is proper, the supplied air quantity meets the set requirement, the upper computer sends a fan frequency signal to a fan frequency converter through the automatic control cabinet, realizing the change of the fan frequency and ending the program operation; if the calculated air volume S2 of the air chamber and the set air volume S1 of the measured component do not satisfy the convergence relationship, the fan frequency is changed in two cases. 1) If the air volume calculated by the air chamber S2 is larger than the set air volume of the tested member S1, reducing the frequency of the fan in equal steps until the air volume calculated by the air chamber and the set air volume of the tested member meet the convergence condition; 2) if the air volume calculated by the air chamber S2 is smaller than the set air volume S1 of the tested component, the fan frequency is increased in equal step length until the air volume calculated by the air chamber and the air volume required by the tested component meet the convergence condition. And finally, the upper computer 9 outputs the fan frequency, and the fan frequency signal is transmitted to the fan frequency converter 3 through the control cabinet 4, so that the adjustment of the fan frequency is realized.
The utility model discloses a technical scheme through reasonable data acquisition device that sets up, the data calculation that utilizes the data acquisition device to gather to obtain obtains the calculation amount of wind of plenum, matches with the settlement amount of wind of surveyed the component for the fan provides the amount of wind and satisfies the settlement condition. The output frequency of the fan is adjusted accurately and conveniently.
Claims (7)
1. The utility model provides a wind system test platform air volume control adjusting device which characterized in that: including wind system test platform, switch board, host computer, wind system test platform includes: fan, plenum, set up in data acquisition device, standard nozzle on the plenum still include host computer, surveyed the component, data acquisition device includes antechamber humiture measurement meter, antechamber pressure measurement meter, back room pressure measurement meter, the switch board includes PLC controller, analog quantity module, digital quantity module, switching power supply, fuse, touch-sensitive screen and fan converter, the real-time data collection that upload was received to the host computer, calculates and obtains the concrete amount of wind of flowing through the plenum and matches with the settlement amount of wind of being surveyed the component.
2. The wind system test platform air volume control and regulation device of claim 1, characterized in that: the data collected by the data collection instrument are uploaded to the upper computer by the control cabinet, the data are uploaded, a fan frequency adjusting signal sent by the upper computer is transmitted to the fan frequency converter, and the change of the fan frequency is realized.
3. The wind system test platform air volume control and regulation device of claim 1, characterized in that: the collected data comprises the temperature and humidity of the front chamber, the pressure of the rear chamber and the calculated differential pressure of the front and rear air chamber nozzles.
4. The wind system test platform air volume control and regulation device of claim 1, characterized in that: and the analog quantity module is responsible for processing signals of the sensor and the air valve.
5. The wind system test platform air volume control and regulation device of claim 1, characterized in that: and the digital quantity input and output module is responsible for processing system start-stop signals, alarm indicator lights and fan start-stop signals.
6. The wind system test platform air volume control and regulation device of claim 1, characterized in that: the measured member includes: the air valve comprises an air valve and a local resistance component, wherein the local resistance component comprises an air pipe, a transition piece, an elbow and an air port.
7. The wind system test platform air volume control and regulation device of claim 1, characterized in that: the data acquisition device also comprises a front chamber static pressure measuring meter, a testing front section pressure measuring meter and a testing rear section pressure measuring meter, wherein the front chamber static pressure measuring meter is arranged at the front end of the air chamber and used for measuring the front chamber static pressure, and the testing front section pressure measuring meter and the testing rear section pressure measuring meter are respectively arranged on the front section air pipe and the rear section air pipe of the tested member and used for measuring the front-back pressure difference of the tested member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220686820.0U CN217132268U (en) | 2022-03-28 | 2022-03-28 | Air volume control and regulation device of air system test platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220686820.0U CN217132268U (en) | 2022-03-28 | 2022-03-28 | Air volume control and regulation device of air system test platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217132268U true CN217132268U (en) | 2022-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220686820.0U Active CN217132268U (en) | 2022-03-28 | 2022-03-28 | Air volume control and regulation device of air system test platform |
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| Country | Link |
|---|---|
| CN (1) | CN217132268U (en) |
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- 2022-03-28 CN CN202220686820.0U patent/CN217132268U/en active Active
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