CN204663839U - The oil well pump frequency-converting control device that a kind of indicator diagram is combined with producing fluid level - Google Patents
The oil well pump frequency-converting control device that a kind of indicator diagram is combined with producing fluid level Download PDFInfo
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- CN204663839U CN204663839U CN201520091447.4U CN201520091447U CN204663839U CN 204663839 U CN204663839 U CN 204663839U CN 201520091447 U CN201520091447 U CN 201520091447U CN 204663839 U CN204663839 U CN 204663839U
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- rtu
- monitoring device
- intelligent monitoring
- oil well
- well pump
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Abstract
The utility model discloses the oil well pump frequency-converting control device that a kind of indicator diagram is combined with producing fluid level, comprise RTU or intelligent monitoring device, the communication interface of RTU or intelligent monitoring device is connected with liquid level monitor, wireless module and frequency variator; Be connected with indicator diagram collecting unit and control panel at the input end of RTU or intelligent monitoring device, and control panel is connected with oil well pump with logic control element through frequency variator; Display modular and logic control element is connected with at the output terminal of RTU or intelligent monitoring device.Indicator diagram combines with producing fluid level as VFC and inputs foundation by the utility model, effectively overcomes measurement error and mistuning joint that single detected parameters brings.The utility model not only have measuring accuracy high, regulate good reliability, the significant advantage of energy-saving effect, but also there is the simple and advantage of variable frequency adjustment function under can realizing the different modes such as manual, automatic, long-range of structure.
Description
Technical field
the utility model relates to the oil well pump frequency-converting control device that a kind of indicator diagram is combined with producing fluid level, belongs to oil field digital measuring and control technique field.
Background technique
along with the development of power-saving technology, oil pump energy-saving and frequency-variable technology is used widely, but owing to being subject to the restriction of oil well hole condition complexity and conditions down-hole, method for controlling frequency conversion is also confined to manually or single parameter detection control mode, and oil well pump VFC fails to reach satisfied energy-saving effect.Conventional method for controlling frequency conversion has surface dynamometer card to calculate underwell pump degree of filling, automatically frequency conversion is regulated to export according to pump degree of filling size, and control frequency conversion output by electric electromechanics energy efficiency or detection dynamic oil level etc., the deficiency of above-mentioned two kinds of methods be only using a kind of result of parameter detecting as the source of VFC and foundation, truly can not reflect the actual usefulness of oil well pump, therefore produced energy-saving effect is also had a greatly reduced quality.Therefore existing oil pump VFC mode or not ideal enough, still can not meet the needs of use.
Model utility content
the purpose of this utility model is, provides the oil well pump frequency-converting control device that a kind of indicator diagram is combined with producing fluid level, single to solve VFC input, the technical problem that energy-saving effect is undesirable, thus overcomes the deficiencies in the prior art.
the technical solution of the utility model is achieved in that
the oil well pump frequency-converting control device that a kind of indicator diagram of the present utility model is combined with producing fluid level is that this device comprises RTU or intelligent monitoring device, and the communication interface of RTU or intelligent monitoring device is connected with liquid level monitor, wireless module and frequency variator; The input end of RTU or intelligent monitoring device is connected with indicator diagram collecting unit and control panel, and control panel is connected with oil well pump with logic control element through frequency variator; The output terminal of RTU or intelligent monitoring device is connected with display modular and logic control element.
in aforementioned means, described indicator diagram collecting unit comprises load transducer and angular displacement sensor, and load transducer and angular displacement sensor are connected with the input end of RTU or intelligent monitoring device respectively; Described logic control element comprises relay and A.C. contactor; The coil control end of relay is connected with the output terminal of control panel and RTU or intelligent monitoring device, and the output terminal of relay is connected with the coil control end of A.C. contactor, and the output terminal of A.C. contactor is connected with oil well pump.
owing to have employed technique scheme, compared with prior art, indicator diagram combines with producing fluid level as VFC and inputs foundation the utility model by the utility model, effectively overcomes measurement error and mistuning joint that single detected parameters brings.Therefore, the utility model not only have measuring accuracy high, regulate good reliability, the significant advantage of energy-saving effect, but also there is the simple and advantage of variable frequency adjustment function under can realizing the different modes such as manual, automatic, long-range of structure.The utility model is specially adapted to slide beam oil well pump energy saving control system of frequency conversion in use.
Accompanying drawing explanation
fig. 1 is the structural representation of the utility model device.
Embodiment
the utility model is constructed by the oil well pump method for controlling frequency conversion that is combined with producing fluid level according to following a kind of indicator diagram, as shown in Figure 1, the method is that the data of the data of indicator diagram collecting unit and liquid level monitor are inputted RTU or intelligent monitoring device simultaneously, the oil well pump submergence that RTU or intelligent monitoring device obtain in conjunction with liquid level monitor according to the pump degree of filling that indicator diagram is extrapolated, judge the authenticity of current system pump efficiency data, and using the effective input of true pump efficiency data as variable frequency adjustment, thus determine frequency converter frequency Output rusults; To overcome the measurement error that single detected parameters is brought, guarantee that oil well pump system reaches optimum energy-saving effect.Indicator diagram collecting unit comprises the load transducer being arranged on mule-head hanger place and the angular displacement sensor being arranged on oil well pump overarm brace place; Indicator diagram collecting unit converts force value to analog value by load transducer; Indicator diagram collecting unit catches horse head by angular displacement sensor and to move up and down process middle cross beam angle, and converts this angle value to analog value; RTU or intelligent monitoring device gather load transducer and angular displacement sensor analog value by analog input interface.Liquid level monitor is arranged on oil well pump sleeve pipe, by inflating gas cylinder or venting percussion, catches down-hole joint hoop ripple and surface wave on liquids, obtains oil well liquid level curve and dynamic oil level value, bidirectional data transfers between liquid level monitor and RTU or intelligent monitoring device.Crossbeam angle changing value, in conjunction with horse head radius, is converted into rope hanger shift value by RTU or intelligent monitoring device, and load value and synchronous shift value are combined to form surface dynamometer card, utilizes surface dynamometer card to calculate down-hole pump dynagraoph, obtains oil well pump degree of filling.RTU or intelligent monitoring device utilize the bidirectional data transfers between liquid level monitor number to obtain liquid level curve and dynamic oil level value, and compare with pump setting depth, obtain oil well pump submergence.Oil well pump motor is exported by frequency variator and drives, and frequency variator is input as 50Hz AC380V well site electricity; Manual, automatic, the remote variable frequency regulatory function that frequency variator realizes oil well pump motor is controlled by control panel and RTU or intelligent monitoring device.Frequency variator exports according to manual tune potentiometer in control panel, or by RTU or the order of intelligent monitoring device variable frequency adjustment, performs corresponding frequencies and export, reach the object regulating oil well pump motor speed.RTU or intelligent monitoring device are connected with display modular and wireless module; The collection result such as maximum load, jig frequency, stroke, dynamic oil level are shown by display modular; The remote data communication with ipc monitor center is realized by wireless module; By power module, AC380V ac power supply is converted to DC electrical source, for system provides working power.
according to the device of the oil well pump VFC that of the present utility model a kind of indicator diagram of said method formation is combined with producing fluid level, as shown in Figure 1, this device comprises RTU or intelligent monitoring device, the input end of RTU or intelligent monitoring device is connected with indicator diagram collecting unit and control panel, and the communication interface of RTU or intelligent monitoring device is connected with liquid level monitor, frequency variator and wireless module; The power input of RTU or intelligent monitoring device is connected with power module, and the output terminal andlogic control unit of RTU or intelligent monitoring device is connected with display modular; Frequency variator is connected with oil well pump motor through logic control element.Indicator diagram collecting unit comprises load transducer and angular displacement sensor, and load transducer and angular displacement sensor are connected with the input end of RTU or intelligent monitoring device respectively; Described control panel is connected with the input end of frequency variator with RTU or intelligent monitoring device, control panel with the output of RTU or intelligent monitoring device jointly as the input of logic control element repeat circuit, the output terminal of relay is as the coil control end of A.C. contactor; Described inverter output terminal is connected with A.C. contactor input end, and A.C. contactor output terminal is connected with oil well pump motor.
Embodiment
in this example, apparatus structure schematic diagram of the present utility model as shown in Figure 1, and this device is made up of parts such as indicator diagram collecting unit, liquid level monitor, RTU or intelligent monitoring device, frequency variator, control panel, logic control element, display modular, wireless module and power modules.
indicator diagram collecting unit is made up of load transducer and angular displacement sensor, and load transducer is arranged on mule-head hanger place, converts force value to analog value.Angular displacement sensor is installed on oil well pump overarm brace place, catches horse head and to move up and down process middle cross beam angle, and convert this angle value to analog value.Liquid level monitor is installed on oil well pump sleeve pipe, by inflating gas cylinder or venting percussion, catches down-hole joint hoop ripple and surface wave on liquids, obtains oil well liquid level curve and dynamic oil level value.
rTU or intelligent monitoring device possess intelligent calculation function.In conjunction with horse head radius, crossbeam angle changing value is converted into rope hanger shift value, load value and synchronous shift value are combined to form surface dynamometer card, utilize surface dynamometer card to calculate down-hole pump dynagraoph, obtain oil well pump degree of filling.RTU or intelligent monitoring device utilize data communication method to obtain liquid level curve and dynamic oil level value, by comparing with pump setting depth, obtain oil well pump submergence.To be calculated that by indicator diagram whether reasonably the pump degree of filling obtained as oil well pump submergence basis for estimation, the true pump efficiency of current system is determined in both combinations, in this, as effective input of variable frequency adjustment, thus determines frequency converter frequency Output rusults.The interface that RTU or intelligent monitoring device possess comprises analog input, digital quantity input, relay output, RS232 communication and RS485 communication etc.
relay and A.C. contactor form analyzing logic control unit, and this unit performs respective logic action according to control panel, RTU or intelligent monitoring device, realize manual, automatic, remote variable frequency regulatory function.Frequency variator performs corresponding frequencies according to RTU or the order of intelligent monitoring device variable frequency adjustment and exports, and reaches the object that jig frequency regulates.Display modular is for showing the collection result such as maximum load, jig frequency, stroke, dynamic oil level.Wireless module is used for realizing remote data communication with ipc monitor center.Power module provides DC electrical source for system.
Claims (2)
1. the oil well pump frequency-converting control device that is combined with producing fluid level of indicator diagram, comprises RTU or intelligent monitoring device, it is characterized in that: on the communication interface of RTU or intelligent monitoring device, be connected with liquid level monitor, wireless module and frequency variator; Be connected with indicator diagram collecting unit and control panel at the input end of RTU or intelligent monitoring device, and control panel is connected with oil well pump with logic control element through frequency variator; Display modular and logic control element is connected with at the output terminal of RTU or intelligent monitoring device.
2. the oil well pump frequency-converting control device that is combined with producing fluid level of indicator diagram according to claim 1, it is characterized in that: described indicator diagram collecting unit comprises load transducer and angular displacement sensor, and load transducer and angular displacement sensor are connected with the input end of RTU or intelligent monitoring device respectively; Described logic control element comprises relay and A.C. contactor; The coil control end of relay is connected with the output terminal of control panel and RTU or intelligent monitoring device, and the output terminal of relay is connected with the coil control end of A.C. contactor, and the output terminal of A.C. contactor is connected with oil well pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520091447.4U CN204663839U (en) | 2015-02-10 | 2015-02-10 | The oil well pump frequency-converting control device that a kind of indicator diagram is combined with producing fluid level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520091447.4U CN204663839U (en) | 2015-02-10 | 2015-02-10 | The oil well pump frequency-converting control device that a kind of indicator diagram is combined with producing fluid level |
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| Publication Number | Publication Date |
|---|---|
| CN204663839U true CN204663839U (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520091447.4U Expired - Fee Related CN204663839U (en) | 2015-02-10 | 2015-02-10 | The oil well pump frequency-converting control device that a kind of indicator diagram is combined with producing fluid level |
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| CN (1) | CN204663839U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288619A (en) * | 2016-11-04 | 2017-10-24 | 吉林省三和电气系统工程有限公司 | A kind of oil well intelligent control method and device |
-
2015
- 2015-02-10 CN CN201520091447.4U patent/CN204663839U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288619A (en) * | 2016-11-04 | 2017-10-24 | 吉林省三和电气系统工程有限公司 | A kind of oil well intelligent control method and device |
| CN107288619B (en) * | 2016-11-04 | 2020-12-15 | 温州南冠机械有限公司 | Intelligent control method and device for oil well |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20190210 |