CN202768446U - Static pressure adjustment device - Google Patents
Static pressure adjustment device Download PDFInfo
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- CN202768446U CN202768446U CN 201220368915 CN201220368915U CN202768446U CN 202768446 U CN202768446 U CN 202768446U CN 201220368915 CN201220368915 CN 201220368915 CN 201220368915 U CN201220368915 U CN 201220368915U CN 202768446 U CN202768446 U CN 202768446U
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- static pressure
- module
- valve
- controlling device
- airduct
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Abstract
The utility model discloses a static pressure adjustment device. The static pressure adjustment device is used for adjusting static pressure value in a blast pipe of a fan when a noise measurement is carried out. The static pressure adjustment device comprises a static pressure regulator and a valve device, wherein the static pressure regulator comprises a collecting module, a processing module, an adjustment module and an actuating module. The collecting module is used for collecting static pressure signals in the blast pipe and the processing module is used for docking and processing receiving signals. The collecting module is connected with the processing module in a communication mode, the adjustment module is connected with the processing module in a communication mode, the actuating module is connected with the adjustment module in a communication mode and the valve device is connected with the actuating module. The static pressure adjustment device has the advantages of being capable of avoiding waste on human resources and eliminating safety potentials when the position of the blast pipe is relatively high.
Description
Technical field
The utility model relates to field of air conditioning, particularly relates to a kind of static pressure controlling device.
Background technique
Along with the development of science and technology and the day by day raising of living standard, increasing people requires air-conditioning to reduce noise when work, therefore need to carry out noise measurement to blower fan in the noise measurement chamber.
When blower fan is carried out noise measurement, need to measure the noise of blower fan under different static pressure, therefore need to regulate the static pressure of blower fan, mainly be the interior static pressure of air outlet tube of regulating blower fan.In existing noise measurement chamber, by sealing or open the purpose that the part exhaust outlet reaches regulating static.
But, open as required at present or the enclosure portion exhaust outlet is by manually operating.A work people compares according to static pressure measurement device shown numerical value and setting value, and judge and open or seal exhaust outlet, another staff regulates the aperture of exhaust outlet according to indication, namely seal a part of air port or open the air port with adhesive plaster or other Pastings or the material of blocking the air port on exhaust outlet, selecting according to the difference between actual static pressure and the target static pressure is to increase the sealing area or dwindle the sealing area.Adopt manual operation, adjustment process is complicated, and when exhaust outlet is positioned at eminence security incident occurs easily.
Therefore, how to design a kind of static pressure regulating system, the waste of avoiding human resources is the problem that those skilled in the art need to solve.
The model utility content
The purpose of this utility model provides a kind of static pressure controlling device, can avoid the waste of human resources, eliminates the potential safety hazard when the airduct position is higher.
A kind of static pressure controlling device provided by the utility model, the static pressure controlling device is used for when carrying out noise measurement, regulate the interior static pressure of airduct of blower fan, described static pressure controlling device comprises static pressure regulator and valving, described static pressure regulator comprises for the acquisition module that gathers static pressure signal in the airduct, for the puocessing module of processing to the received signal, adjustment module and Executive Module, described acquisition module and being connected that described puocessing module can be communicated by letter, described adjustment module and being connected that described puocessing module can be communicated by letter, described Executive Module and being connected that described adjustment module can be communicated by letter, described valving is connected with described Executive Module.
Preferably, described valving is air-valve.
Preferably, described air-valve is fixedly installed on the exhaust outlet of described airduct.
Preferably, described acquisition module and described puocessing module are differential pressure transmitter, and described differential pressure transmitter can gather the interior static pressure of airduct and convert the static pressure that collects to electrical signal.
Preferably, described differential pressure transmitter comprises collection tube, and an end of described collection tube is connected with described airduct, and the other end is connected with described differential pressure transmitter acquisition port.
Preferably, described Executive Module is fan valve executor, and described fan valve executor is fixedly connected with described air-valve.
Preferably, described electrical signal is d. c. voltage signal.
Preferably, also comprise the cotton of eliminating the noise, the described cotton inwall that is fixedly installed on described air-valve of eliminating the noise.
Preferably, described air-valve comprises air valve piece, and described noise elimination cotton is fixedly installed on the inwall of described air valve piece.
A kind of static pressure controlling device provided by the utility model, regulate carrying out static pressure in the blower fan airduct when being used for noise measurement, comprise static pressure regulator and valving, static pressure regulator comprises acquisition module, puocessing module, adjustment module and Executive Module, acquisition module is used for gathering the static pressure signal in the airduct, puocessing module is used for processing to the received signal, acquisition module and being connected that puocessing module can be communicated by letter, puocessing module and being connected that adjustment module can be communicated by letter, adjustment module is connected with valving with being connected that Executive Module can be communicated by letter, Executive Module.
Acquisition module gathers the interior static pressure of airduct and signal is transferred to puocessing module, puocessing module receives the signal that comes from acquisition module, and signal processed make signal convert electrical signal to, puocessing module with the conversion electric signal transmission to adjustment module, adjustment module receives the electrical signal that puocessing module sends, convert the electrical signal of accepting to static pressure, and static pressure and predefined static pressure made comparisons, and send regulating command according between the two difference, Executive Module receives regulating command, and come the control valve device according to regulating command, change the aperture of airduct exhaust outlet by the aperture of adjusting valving, and then reach the purpose that the static pressure in the airduct is regulated.Static pressure controlling device provided by the utility model, utilize static pressure regulator to come the aperture of regulating valve device, change the exhaust outlet aperture with this, thereby reach the purpose of regulating the static pressure in the airduct, compared with prior art, do not need manual operation to change the aperture of exhaust outlet, therefore can avoid the waste of human resources.And, can avoid when the position of airduct exhaust outlet is higher, causing danger, can eliminate safe hidden trouble.
A kind of preferred embodiment in, valving is air-valve.Utilize the aperture that changes air-valve, reach the purpose that changes the exhaust outlet aperture, and then regulate static pressure in the airduct.Because the inleakage of air-valve is little, adjusting function is good, it is hereby ensured the accuracy that static pressure in the airduct is regulated.
In another preferred embodiment, Executive Module is the fan valve executor that is fixedly installed on air-valve.Because the fan valve executor degree of regulation is high, and adjusting function is good, it is hereby ensured the accuracy that air-valve is regulated, and then can guarantee the accuracy to static pressure adjusting in the airduct.
In another preferred embodiment, comprise that also the noise elimination that is fixedly installed on the air-valve inwall is cotton.By the cotton of eliminating the noise is set, can prevent from when turning down air-valve, producing the wind whistle, guarantee noise measurement result's accuracy.
Description of drawings
The static pressure controlling device line construction schematic representation of Fig. 1 for providing in this embodiment;
Wherein, Fig. 1:
Puocessing module 1, adjustment module 2, Executive Module 3.
Embodiment
Core of the present utility model provides a kind of static pressure controlling device, can avoid waste of human resource, eliminates the potential safety hazard when the airduct position is higher.
In order to make those skilled in the art person understand better the utility model scheme, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1, the static pressure regulator line construction schematic representation of Fig. 1 for providing in this embodiment.
The static pressure controlling device that in this embodiment, provides, regulate the static pressure in the blower fan airduct when being used for noise measurement, comprise static pressure regulator and valving (not indicating among the figure), static pressure regulator comprises acquisition module (not indicating among the figure), puocessing module 1, adjustment module 2 and Executive Module 3, acquisition module (not indicating among the figure) is used for gathering the static pressure signal in the airduct, puocessing module 1 is used for the static pressure signal that receives is processed, acquisition module (not indicating among the figure) and being connected that puocessing module 1 can be communicated by letter, puocessing module 1 and being connected that adjustment module 2 can be communicated by letter, adjustment module 2 and being connected that Executive Module 3 can be communicated by letter, valving (not indicating among the figure) is connected with Executive Module 3.
Acquisition module (indicating among the figure) gathers the interior static pressure of airduct and signal is transferred to puocessing module 1, puocessing module 1 receives the signal that comes from acquisition module (not indicating among the figure), and signal processed make signal convert electrical signal to, puocessing module 1 with the conversion electric signal transmission to adjustment module 2, adjustment module 2 receives the electrical signal that puocessing module 1 sends, the electrical signal that receives is converted to static pressure, and compare with predefined static pressure, regulate control according to difference transmission between the two, Executive Module 3 receives regulating command, and come control valve device (among the figure indicate) according to regulating command, change the aperture of airduct exhaust outlet by the aperture of adjusting valving (not indicating among the figure), and then reach the purpose that the static pressure in the airduct is regulated.
Utilize static pressure regulator to come control valve device (not indicating among the figure), by changing the aperture of valving (not indicating among the figure), change the aperture of exhaust outlet with this, and then reach the purpose of regulating static pressure in the airduct, compared with prior art, do not need manual operation to change the aperture of exhaust outlet, therefore can avoid the waste of human resources.Owing to do not need manual operation, therefore when the airduct position is higher, can not cause danger, can eliminate safe hidden trouble.
In this embodiment, what valving (among the figure indicate) adopted is air-valve.Air-valve is fixedly installed on the exhaust outlet of airduct.By changing the aperture of air-valve, thereby can change the aperture of exhaust outlet, and then reach the purpose that changes static pressure in the airduct.Because the inleakage of air-valve is little, adjusting function is good, it is hereby ensured the accuracy that static pressure in the airduct is regulated.
In this embodiment, acquisition module and puocessing module 1 are the differential pressure transmitter that comprises collection tube.One end of collection tube is connected with airduct, and the other end is connected with the acquisition port of differential pressure transmitter.
Collection tube is connected with airduct, make the interior static pressure of the interior static pressure of collection tube and airduct identical, differential pressure transmitter can pass through acquisition port, collects the static pressure in the collection tube, and the static pressure that collects processed, make static pressure be converted to d. c. voltage signal.The range of voltage values of voltage signal is the 0-10 volt in this embodiment, certainly in order to satisfy different adjusting needs, also can adopt other electric signal value, such as 0-5 volt, 0-10 milliampere, 0-15 volt etc.
In addition, in this embodiment, Executive Module 3 is for being fixedly installed on the fan valve executor of air-valve.Fan valve executor can adjusting air valve aperture because the degree of regulation of fan valve executor is high, and adjusting function is good, can guarantee accuracy that air-valve is regulated, and then can guarantee accuracy that static pressure in the airduct is regulated.
Need to prove that what adopt in this embodiment is the 24VDC(24 volt direct current) static pressure regulator is powered.Certainly, can select as required other power supply form, as can the 30VDC(30 volt direct current) or adopt the form power supply of Ac.
Also need to prove, adjustment module 2 comprises the PID(proportional-integral-differential in this embodiment) reconciliation statement, by adopting the PID reconciliation statement, can make adjustment module 2 stablize, regulate fast and accurately control, send regulating command, thereby can guarantee the accuracy to static pressure adjusting in the airduct.
What need to further specify is, related linking route in this embodiment, as gathering circuit, adjusting circuit etc., employing be shielding wire.So arrange, can avoid other signals that the static pressure controlling device is produced and disturb, therefore can guarantee the accuracy that static pressure is regulated.
Above static pressure regulator and the air-valve of this static pressure controlling device have been done detailed introduction, except static pressure regulator and air-valve, static pressure controlling device provided in the present embodiment also comprises the cotton of eliminating the noise.
The cotton of eliminating the noise is fixedly installed on the inwall of air-valve, certainly, and the cotton inwall that can also be fixedly installed on air valve piece of eliminating the noise.By adopting the cotton of eliminating the noise, can prevent that air-valve from closing a hour generation whistle.
Because the static pressure controlling device is used for when noise-measuring is tested the static pressure in the blower fan airduct being regulated, it is cotton that therefore the noise elimination that can prevent whistle is set, and can guarantee noise-measuring result's accuracy.
In this embodiment, what eliminate the noise cotton employing is that thickness is the cotton PU(polyurethane foam of ripple of 20mm).
Above a kind of embodiment of static pressure controlling device provided by the utility model has been done detailed introduction.Can find out that by describing static pressure controlling device provided by the utility model can be avoided the waste of manpower, eliminate the potential safety hazard that when the airduct position is higher, exists, and can guarantee the accuracy of the measurement result of noise measurement experiment.
More than a kind of static pressure controlling device provided by the utility model is described in detail.Used specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (8)
1. static pressure controlling device, the static pressure controlling device is used for when carrying out noise measurement, regulate the interior static pressure of airduct of blower fan, it is characterized in that, described static pressure controlling device comprises static pressure regulator and valving, described static pressure regulator comprises for the acquisition module that gathers static pressure signal in the airduct, for the puocessing module of processing to the received signal, adjustment module and Executive Module, described acquisition module and being connected that described puocessing module can be communicated by letter, described adjustment module and being connected that described puocessing module can be communicated by letter, described Executive Module and being connected that described adjustment module can be communicated by letter, described valving is connected with described Executive Module.
2. static pressure controlling device according to claim 1 is characterized in that, described valving is air-valve.
3. static pressure controlling device according to claim 2 is characterized in that, described air-valve is fixedly installed on the exhaust outlet of described airduct.
4. static pressure controlling device according to claim 1 is characterized in that, described acquisition module and described puocessing module are differential pressure transmitter, and described differential pressure transmitter can gather the interior static pressure of airduct and convert the static pressure that collects to electrical signal.
5. static pressure controlling device according to claim 4 is characterized in that, described differential pressure transmitter comprises collection tube, and an end of described collection tube is connected with described airduct, and the other end is connected with described differential pressure transmitter acquisition port.
6. static pressure controlling device according to claim 2 is characterized in that, described Executive Module is fan valve executor, and described fan valve executor is fixedly connected with described air-valve.
7. static pressure controlling device according to claim 2 is characterized in that, also comprises the cotton of eliminating the noise, the described cotton inwall that is fixedly installed on described air-valve of eliminating the noise.
8. static pressure controlling device according to claim 7 is characterized in that, described air-valve comprises air valve piece, and described noise elimination cotton is fixedly installed on the inwall of described air valve piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220368915 CN202768446U (en) | 2012-07-27 | 2012-07-27 | Static pressure adjustment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220368915 CN202768446U (en) | 2012-07-27 | 2012-07-27 | Static pressure adjustment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202768446U true CN202768446U (en) | 2013-03-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220368915 Expired - Fee Related CN202768446U (en) | 2012-07-27 | 2012-07-27 | Static pressure adjustment device |
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| Country | Link |
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| CN (1) | CN202768446U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110986259A (en) * | 2019-11-04 | 2020-04-10 | 珠海格力电器股份有限公司 | Static pressure adjusting device and silence fresh air handling unit of noise reduction |
| CN111023421A (en) * | 2019-12-27 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Static pressure self-adjustment control method and device and air conditioner |
-
2012
- 2012-07-27 CN CN 201220368915 patent/CN202768446U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110986259A (en) * | 2019-11-04 | 2020-04-10 | 珠海格力电器股份有限公司 | Static pressure adjusting device and silence fresh air handling unit of noise reduction |
| CN111023421A (en) * | 2019-12-27 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Static pressure self-adjustment control method and device and air conditioner |
| CN111023421B (en) * | 2019-12-27 | 2021-08-24 | 宁波奥克斯电气股份有限公司 | Static pressure self-adjustment control method and device and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20150727 |
|
| EXPY | Termination of patent right or utility model |