CN202906829U - Constant voltage water supply gas supply frequency conversion cabinet - Google Patents
Constant voltage water supply gas supply frequency conversion cabinet Download PDFInfo
- Publication number
- CN202906829U CN202906829U CN2012204822726U CN201220482272U CN202906829U CN 202906829 U CN202906829 U CN 202906829U CN 2012204822726 U CN2012204822726 U CN 2012204822726U CN 201220482272 U CN201220482272 U CN 201220482272U CN 202906829 U CN202906829 U CN 202906829U
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- CN
- China
- Prior art keywords
- frequency converter
- potentiometer
- water supply
- frequency
- frequency conversion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Control Of Ac Motors In General (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The utility model provides a constant voltage water supply gas supply frequency conversion cabinet comprising a frequency converter, a teletransmission pressure gauge and a potentiometer, and U, V, W of the frequency converter are connected with a motor M; three-phase power source L1, L2 and L3 are connected with R, S, T of the frequency converter; one end of the potentiometer is connected with GND and a power source; the other end of the potentiometer is connected with the frequency converter; one end of the teletransmission pressure gauge is connected with RC of the frequency converter, and other end is connected with GND and a power source; and the frequency converter is also provided with buttons, the buttons comprise a start button and a stop button, the start button is connected with X1 of the frequency converter, and the stop button is connected with X2 of the frequency converter. The constant voltage water supply gas supply frequency conversion cabinet is simple and visual when pressure is adjusted.
Description
Technical field
The utility model relates to the frequency converter field, refers to especially a kind of constant pressure water supply air feed frequency conversion bin.
Background technology
Frequency converter is to utilize the on-off action of power semiconductor device power frequency supply to be transformed to the electric energy control device of another frequency, can realize to AC induction motor soft start, frequency control, raising running accuracy, change power factor, the overcurrent/overvoltage/functions such as overload protection.The frequency-conversion control cabinet of present constant pressure water supply air feed after the setting pressure change during pressure program complicated or need to increase new accessory, configuration is complicated, complex operation.
The utility model content
The utility model proposes a kind of constant pressure water supply air feed frequency conversion bin, solved the problem of complex operation when adjusting pressure in the prior art.
The technical solution of the utility model is achieved in that a kind of constant pressure water supply air feed frequency conversion bin, comprises frequency converter, distance-transmission pressure gauge, potentiometer, and the U of described frequency converter, V, W are connected with motor M; Three phase mains L1, L2, L3 are connected with R, S, the T of frequency converter; One termination GND of potentiometer, power supply; The other end connects frequency converter; Remote pressure gauge one end is connected with the RC of frequency converter, and the other end is connected with GND, power supply; Also be provided with button on the described frequency converter, described button comprises operation button and stop botton, and described operation button connects the X1 of frequency converter, and stop botton connects the X2 of frequency converter.
Further comprise, also be provided with blower fan on the described frequency converter, described blower fan is connected with power supply.
Further comprise, described potentiometer is slide rheostat, and described slide rheostat is provided with slide control AT1 and AT2.
Beneficial effect: the utility model has solved the defective that exists in the background technology, and by the such setting of the utility model, required accessory is oversimplified, and simple when adjusting pressure, directly perceived, ordinary populace can be finished application.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the theory structure schematic diagram of an embodiment of the utility model;
Wherein: 1, frequency converter; 2, distance-transmission pressure gauge; 3, potentiometer; 4, blower fan; 5, the operation button; 6, stop botton.
Embodiment
As shown in Figure 1, a kind of constant pressure water supply air feed frequency conversion bin comprises frequency converter 1, distance-transmission pressure gauge 2, potentiometer 3, and the U of described frequency converter 1, V, W are connected with motor M; Three phase mains L1, L2, L3 are connected with R, S, the T of frequency converter 1; Described potentiometer 3 is realize required pressure given, a termination GND of potentiometer 3, power supply; The other end connects frequency converter 1; Described remote pressure gauge 2 is realized the measurement of existing pressure and is fed back to frequency converter 1, remote pressure gauge 2 one ends are connected with the RC of frequency converter 1, the other end is connected with GND, power supply, and described potentiometer 3 is slide rheostats, slip control simulation amount passage AT1 and AT2; Also be provided with button on the described frequency converter 1, button realizes the operation of equipment and stops, and described button comprises operation button 5 and stop botton 6, and described operation button 5 connects the X1 of frequency converters, and stop botton 6 connects the X2 of frequency converters.Also be provided with blower fan 4 on the described frequency converter 1, blower fan 4 is used for the heat radiation of frequency converter 1, and described blower fan 4 is connected with CM with the RC of frequency converter 1.
Operating process: after connecting the 380V power supply, by potentiometer 3 required pressure is set, pressure is presented on the frequency converter 1, by operation button 5, frequency converter 1 output, the distance-transmission pressure gauge 2 present pressure that reach also feed back to frequency converter 1, set the pressure speed per hour and go out frequency and drop to and stop when reaching potentiometer 3, give regularly less than potentiometer 3 when pressure, reset.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (3)
1. constant pressure water supply air feed frequency conversion bin, it is characterized in that: comprise frequency converter, distance-transmission pressure gauge, potentiometer, the U of described frequency converter, V, W are connected with motor M; Three phase mains L1, L2, L3 are connected with R, S, the T of frequency converter; One termination GND of potentiometer, power supply; The other end connects frequency converter; Remote pressure gauge one end is connected with the RC of frequency converter, and the other end is connected with GND, power supply; Also be provided with button on the described frequency converter, described button comprises operation button and stop botton, and described operation button connects the X1 of frequency converter, and stop botton connects the X2 of frequency converter.
2. constant pressure water supply air feed frequency conversion bin as claimed in claim 1, it is characterized in that: also be provided with blower fan on the described frequency converter, described blower fan is connected with power supply.
3. constant pressure water supply air feed frequency conversion bin as claimed in claim 1, it is characterized in that: described potentiometer is slide rheostat, described slide rheostat is provided with slide control AT1 and AT2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204822726U CN202906829U (en) | 2012-09-20 | 2012-09-20 | Constant voltage water supply gas supply frequency conversion cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204822726U CN202906829U (en) | 2012-09-20 | 2012-09-20 | Constant voltage water supply gas supply frequency conversion cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202906829U true CN202906829U (en) | 2013-04-24 |
Family
ID=48127447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204822726U Expired - Fee Related CN202906829U (en) | 2012-09-20 | 2012-09-20 | Constant voltage water supply gas supply frequency conversion cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202906829U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104142696A (en) * | 2014-07-13 | 2014-11-12 | 季文林 | Weighing water distribution control system |
-
2012
- 2012-09-20 CN CN2012204822726U patent/CN202906829U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104142696A (en) * | 2014-07-13 | 2014-11-12 | 季文林 | Weighing water distribution control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20130920 |