CN201180659Y - Frequency conversion oil-submersible pump - Google Patents
Frequency conversion oil-submersible pump Download PDFInfo
- Publication number
- CN201180659Y CN201180659Y CNU2008200740330U CN200820074033U CN201180659Y CN 201180659 Y CN201180659 Y CN 201180659Y CN U2008200740330 U CNU2008200740330 U CN U2008200740330U CN 200820074033 U CN200820074033 U CN 200820074033U CN 201180659 Y CN201180659 Y CN 201180659Y
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- CN
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- Prior art keywords
- oil
- pump
- frequency
- immersed pump
- submerged pump
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- Expired - Fee Related
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Abstract
The utility model provides a frequency-conversion oil submerged pump which includes an oil submerged pump composed of a pump body, a pump head and a connecting pipe, and a frequency converter control circuit connected with the oil submerged pump. The frequency converter control circuit is as follows: the power input end of a frequency converter is connected with an alternating current power; the signal input end of the frequency converter is sequentially connected in series with an A/D converter and a pressure transducer; the output end of the frequency converter is connected with a motor of the oil submerged pump; and the pressure transducer is arranged at the port of an oil outlet pipe of the pump head. The frequency-conversion oil submerged pump has the advantages that the frequency-conversion oil submerged pump can utilize the frequency converter to adjust the working state of the motor of the oil submerged pump, adjust the rotational speed, the flow capacity, the pressure (pump lift) and the shaft power of the oil submerged pump according to the practical working state of an oiling machine, enable the oil submerged pump to carry out the corresponding adjustment according to the practical working state, and achieve the effects of electric energy conservation and safe operation.
Description
Technical field
The utility model relates to fixing oil storage tank (jar) or the fixing oil-immersed pump in oilling machine or refuelling truck, carried of the oil product in the oil basin, particularly be the frequency conversion oil-immersed pump of regulating oil-immersed pump motor speed, flow, pressure.
Background technique
The self-priming pump that uses of oilling machine fuel transfer system is ZL200520027435.1 by the patent No. in the market, and the patented technology that name is called oil-immersed pump has substituted.The structure of above-mentioned patent oil-immersed pump comprises: the pump housing, pump head and connecting pipeline; The described pump housing is made up of oil-immersed pump motor and centrifugal pump, and the pump housing is inserted in the oil tank; Pump head is positioned at the oil tank outside, and pump head links to each other with the pump housing in the oil tank by connecting pipeline and flange; Pump head is provided with and connects the oil outlet tube 4 that (figure does not show) robbed in oiling.Above-mentioned oil-immersed pump patented technology major advantage is can be with 4-8 to prop up nozzle simultaneously in a cover fuel transfer system to work simultaneously.
But in actual use, there is following defective in above-mentioned oil-immersed pump patent: the volume read-out of each period of gas station is also unbalanced, and the nozzle that has 6 oil products of the same race peak period refuels simultaneously, and perhaps low-valley interval has only 1-2 to prop up the nozzle oiling.When the low-valley interval gas station has only 1-2 to prop up nozzle work, the outlet pressure of oil-immersed pump (for example: 0.29MPa) (for example: 0.18MPa) be far longer than actual needed pressure, this not only wastes energy, also cause the force value of nozzle outlet pressure, have potential safety hazard simultaneously considerably beyond national Specification.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, provide a kind of and have only very few number nozzle when work at low-valley interval when the gas station, utilize frequency variator to adjust oil-immersed pump motor speed, flow, pressure (lift) and air horsepower, thereby reach energy-conservation, safe frequency conversion oil-immersed pump according to corresponding ratio.
The technological scheme that solves the problems of the technologies described above is: a kind of frequency conversion oil-immersed pump, and this frequency conversion oil-immersed pump comprises the oil-immersed pump of being made up of the pump housing, pump head and connecting tube, also comprises the transducer control circuit that is connected with oil-immersed pump; Described transducer control circuit is: the power input of frequency variator connects ac power supply; The signal input part of frequency variator be connected in series successively A/D converter and pressure transducer; The output terminal of frequency variator connects the oil-immersed pump motor; Described pressure transducer is arranged on the oil outlet tube port of pump head.
The beneficial effects of the utility model are: the utility model can utilize frequency variator to regulate the oil-immersed pump electric machine operation state, regulate rotating speed, flow, pressure (lift) and the air horsepower of oil-immersed pump according to the actual working state of oilling machine, make oil-immersed pump make corresponding adjustment according to actual working state, saving power can be realized, the effect of security of operation can be reached again.
Description of drawings
Fig. 1 is the utility model external form linkage structure schematic representation;
Fig. 2 is that the utility model circuit connects block diagram;
Fig. 3 is the utility model circuit connection diagram.
" main sequence number explanation in the accompanying drawing "
1: oil tank 2: oil-immersed pump motor 3: flange 4: oil outlet tube
5: pump head 6: pressure transducer 7: ac power supply 8: frequency variator
9:A/D transducer 10: the pump housing 11: connecting tube 20: oil-immersed pump
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is the utility model external form linkage structure schematic representation.
As shown in Figure 1, the utility model provides a kind of frequency conversion oil-immersed pump, this frequency conversion oil-immersed pump comprises the oil-immersed pump of being made up of the pump housing 10, pump head 5 and connecting tube 11 20, the structure of this oil-immersed pump 20 is ZL200520027435.1 in the patent No., name is called in the oil-immersed pump patent document and discloses, that is, the described pump housing 10 is made up of oil-immersed pump motor 2 and centrifugal pump (figure does not show), and the pump housing 10 is inserted in the oil tank 1; Pump head 5 is positioned at oil tank 1 outside, and pump head 5 links to each other with the pump housing 10 in the oil tank 1 by connecting tube 11 and flange 3; Pump head 5 is provided with and connects the oil outlet tube 4 that (figure does not show) robbed in oiling, and oil outlet tube 4 connects a plurality of nozzles (figure does not show).Is that the oil-immersed pump structure of ZL200520027435.1 no longer describes in detail at this to the patent No..
Fig. 2 is that the utility model circuit connects block diagram; Fig. 3 is the utility model circuit connection diagram.
As Fig. 2, shown in Figure 3, the utility model also comprises the transducer control circuit that is connected with oil-immersed pump 20.
Described transducer control circuit is: the power input of frequency variator 8 connects ac power supply 7; The signal input part of frequency variator 8 be connected in series successively A/D converter 9 and pressure transducer 6; The output terminal of frequency variator 8 connects oil-immersed pump motor 2; Described pressure transducer 6 is arranged on oil outlet tube 4 ports of pump head 5.
Described A/D converter 9 is that model is the module of ADS1232; Described frequency variator 8 models are TS2900PT4.
The power interface R.S.T end of described frequency variator 8 connects the output terminal of ac power supply 7; The input end A1.A2 of the output termination A/D converter 9 of pressure transducer 6, the output terminal D1.D2 of A/D converter 9 meet the analog amount input end FD.CM of frequency variator 8; The power output end U.V.W of frequency variator 8 connects the power import end of oil-immersed pump motor 2.
Below working procedure of the present utility model is described:
At first connect ac power supply 7, nozzle is prepared to refuel, and ac power supply 7 is exported to oil-immersed pump motor 2 through frequency variator 8, and oil-immersed pump motor 2 is delivered to oil in the oil outlet tube 4 of pump head 5.To detect pressure signal on the oil pipe 4 at the pressure transducer 6 of the oil outlet tube 4 port settings of pump head 5, output 4 ~ 20mA standard signal, convert digital signal transfers to through A/D converter 9 and give frequency variator 8, sequential operation through frequency variator 8 obtains best output scheme, power output end U.V.W by frequency variator 8 offers oil-immersed pump motor 2, reach automatic control oil-immersed pump motor speed, the flow, pressure (lift) and the air horsepower that make oil-immersed pump 20 is according to corresponding ratio adjustment, thus reach the saving power nuclear safety effect.
Claims (3)
1. frequency conversion oil-immersed pump, this frequency conversion oil-immersed pump comprises the oil-immersed pump of being made up of the pump housing, pump head and connecting tube, it is characterized in that, also comprises the transducer control circuit that is connected with oil-immersed pump (20); Described transducer control circuit is: the power input of frequency variator (8) connects ac power supply (7); The signal input part of frequency variator (8) be connected in series successively A/D converter (9) and pressure transducer (6); The output terminal of frequency variator (8) connects oil-immersed pump motor (2); Described pressure transducer (6) is arranged on oil outlet tube (4) port of pump head (5).
2. according to the frequency conversion oil-immersed pump described in the claim 1, it is characterized in that described A/D converter (9) is that model is the module of ADS1232; Described frequency variator (8) model is TS2900PT4.
3. according to the frequency conversion oil-immersed pump described in claim 1 or 2, it is characterized in that power interface (R.S.T) end of described frequency variator (8) connects the output terminal of ac power supply (7); The input end (A1.A2) of the output termination A/D converter (9) of pressure transducer (6), the output terminal (D1.D2) of A/D converter (9) connects the analog amount input end (FD.CM) of frequency variator (8); The power output end (U.V.W) of frequency variator (8) connects the power import end of oil-immersed pump motor (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200740330U CN201180659Y (en) | 2008-03-10 | 2008-03-10 | Frequency conversion oil-submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200740330U CN201180659Y (en) | 2008-03-10 | 2008-03-10 | Frequency conversion oil-submersible pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201180659Y true CN201180659Y (en) | 2009-01-14 |
Family
ID=40250159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200740330U Expired - Fee Related CN201180659Y (en) | 2008-03-10 | 2008-03-10 | Frequency conversion oil-submersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201180659Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966570A (en) * | 2012-11-07 | 2013-03-13 | 无锡惠山泵业有限公司 | Speed regulation water pump |
-
2008
- 2008-03-10 CN CNU2008200740330U patent/CN201180659Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966570A (en) * | 2012-11-07 | 2013-03-13 | 无锡惠山泵业有限公司 | Speed regulation water pump |
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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: 20090114 Termination date: 20140310 |