CN217506408U - Networking frequency conversion monitoring device for oil pumping unit in oil field - Google Patents
Networking frequency conversion monitoring device for oil pumping unit in oil field Download PDFInfo
- Publication number
- CN217506408U CN217506408U CN202221715783.8U CN202221715783U CN217506408U CN 217506408 U CN217506408 U CN 217506408U CN 202221715783 U CN202221715783 U CN 202221715783U CN 217506408 U CN217506408 U CN 217506408U
- Authority
- CN
- China
- Prior art keywords
- unit
- power supply
- plc
- frequency conversion
- pumping unit
- 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.)
- Active
Links
Images
Abstract
The utility model belongs to oil field production intelligent monitoring equipment discloses an oil field beam-pumping unit networking frequency conversion monitoring device, including the power supply unit, beam-pumping unit frequency conversion unit, the PLC unit, station accuse central unit, wireless merit figure sensor and touch-control unit, the PLC unit is used for data storage, operation and analysis, the beam-pumping unit frequency conversion unit is connected through the IO port to the PLC unit, the PLC unit passes through ethernet interface connection station accuse central unit, the PLC unit passes through RS485 shielding paired line and connects wireless merit figure sensor, the PLC unit passes through RS485 shielding paired line and connects the touch-control unit. Compared with the prior art, the utility model discloses a current beam-pumping unit has configured the frequency conversion unit, and the frequency conversion unit can control and change the number of strokes of beam-pumping unit, realizes intermittent type according to the real-time change of indicator diagram data and takes out and stop, and improve equipment utilization efficiency avoids extravagant electric energy. Meanwhile, a novel touch unit is designed in the scheme, and the interaction problem of the system is effectively solved.
Description
Technical Field
The utility model belongs to the technical field of the oil electronics supervisory equipment, especially, relate to an oil field beam-pumping unit networking frequency conversion monitoring device.
Background
The digital oil field refers to the informationized and platformized management of the oil field by using the technology of the internet of things and the sensor technology in the production and management processes of oil field enterprises. In the operation process of the oil field, various information collected by the sensor is gathered to the cloud end through wireless transmission, and the high-efficiency and stable operation of the oil field is assisted under the energizing of cloud computing service.
The digital oil field is a direction for the vast oil field enterprises to progress and develop in the future, and is one of the expressions of ensuring sustainable development and strengthening competitiveness, and along with the further development of oil field development, the technology of the internet of things can become an important means for promoting the development of the digital oil field to a high-intelligence trend.
How to use the frequency conversion unit for the current oil pumping unit in the oil field, realize the networking control function of power frequency and frequency conversion of the oil pumping unit becomes the technical problem in this field.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides an oil field beam-pumping unit networking frequency conversion monitoring device, this system have configured the frequency conversion unit for current beam-pumping unit, and the frequency conversion unit can control and change the stroke frequency of beam-pumping unit, realizes intermittent type according to the real-time change of indicator diagram data and takes out and stop, improve equipment utilization efficiency, avoid extravagant electric energy. Meanwhile, a novel touch unit is designed in the scheme, and the interaction problem of the system is effectively solved.
The utility model discloses an above-mentioned problem is solved to following technical means:
the utility model provides an oil field beam-pumping unit networking frequency conversion monitoring device, includes power supply unit, beam-pumping unit frequency conversion unit, PLC unit, station accuse central unit, wireless indicator diagram sensor and touch-control unit, wherein: the power supply unit is used for supplying power to the pumping unit frequency conversion unit, the PLC unit, the station control center unit, the touch control unit and the pumping unit; the PLC unit is used for data storage, operation and analysis, the PLC unit is connected with the frequency conversion unit of the oil pumping unit through an I/O port, the PLC unit is connected with the station control center unit through an Ethernet interface, the PLC unit is connected with the wireless indicator diagram sensor through an RS485 shielded twisted pair, and the PLC unit is connected with the touch unit through an RS485 shielded twisted pair; the frequency conversion unit of the oil pumping unit receives a start-stop command and a frequency converter speed given signal sent by the PLC unit and controls the working state of the oil injection and pumping unit; the station control central unit is an industrial personal computer; the wireless indicator diagram sensor is used for acquiring current, power, displacement and load signals of the oil pumping unit; the touch control unit comprises a touch screen, a plurality of selector switches, a button and an indicator light, wherein the selector switches and the button are used for receiving an operation signal, and the indicator light is used for displaying the working state of the system.
Preferably, the power supply unit includes a main power supply circuit, a PLC power supply circuit, and a switching power supply circuit, wherein: the main power supply circuit comprises a molded case circuit breaker, a first alternating current contactor, a second alternating current contactor and a third alternating current contactor, three-phase electricity of the main circuit is divided into two branches after passing through the molded case circuit breaker, one branch is connected with an external oil outlet pump through the first alternating current contactor, the other branch is connected with the input end of a frequency converter of a frequency conversion unit of the pumping unit through the second alternating current contactor, the output end of the frequency converter is connected with the external oil outlet pump through the third alternating current contactor, and a frequency operation switch is installed on a control port of the frequency converter; the PLC power supply circuit comprises a miniature circuit breaker, and the three-phase power of the main circuit is connected to a power supply wiring live wire terminal and a zero line terminal of the PLC unit through the miniature circuit breaker; the switching power supply circuit comprises a miniature circuit breaker and a switching power supply, three-phase electricity of a main circuit enters the switching power supply through the miniature circuit breaker, and the switching power supply converts AC220V into DC 24V.
Preferably, the PLC unit employs a SMART200PLC type controller.
Preferably, the frequency conversion unit adopts a GD200A frequency converter, wherein: the +24V end and the S1 end of a switching value input terminal of the GD200A type frequency converter are connected to a normally open contact of a frequency operation switch; an analog quantity input terminal AIn end and an AGND end of the GD200A type frequency converter are connected to an AQ0+ end and an AQ 0-end of the SMART200PLC type controller; the A/N end and GND end of the analog output terminal of the GD200A type frequency converter are connected to the AI0+ end and AI 0-end of the SMART200PLC type controller; the switch output terminals RA and RB of the GD200A type frequency converter are respectively connected to the coil of the relay, and the RC terminal of the GD200A type frequency converter is connected to the AC220V output by the miniature circuit breaker.
Preferably, the station control central unit adopts an IPC-610L type industrial control machine.
Preferably, the touch screen of the touch unit is connected with the PLC unit through an RS485 shielded twisted pair.
Preferably, the touch unit includes an in-place/computer selection button, an emergency stop button, a fault reset button, and a system fault indicator lamp, wherein: the local/computer selection button is a double-position button and comprises two groups of contacts, wherein one end of one group of contacts is connected with an I0.0 terminal of the SMART200 type controller, and the other end of the contacts is connected with a positive electrode output end 24V of the switching power supply circuit; one end of the other group of contacts of the local/computer selection button is connected with an I0.1 terminal of the SMART200 type controller, and the other end is connected with a positive electrode output end 24V of the switching power supply circuit; the emergency stop button is a reset button, one end of the emergency stop button is connected with an I0.2 terminal of the SMART200 type controller, and the other end of the emergency stop button is connected with a positive electrode output end 24V of the switching power supply circuit; the fault reset button is a reset button, one end of the fault reset button is connected with an I0.3 terminal of the SMART200 type PLC, and the other end of the fault reset button is connected with a positive electrode output end 24V of the switching power supply circuit; one end of the system fault indicator lamp is connected with an I0.4 terminal of the SMART200 type controller, and the other end of the system fault indicator lamp is connected with a positive electrode output end 24V of the switching power supply circuit.
The utility model discloses an oil field beam-pumping unit networking frequency conversion monitoring device has following beneficial effect:
(1) the utility model discloses a current beam-pumping unit has configured the frequency conversion unit, and the frequency conversion unit can control and change the number of strokes of beam-pumping unit, realizes intermittent type according to the real-time change of indicator diagram data and takes out and stop, and improve equipment utilization efficiency avoids extravagant electric energy. Meanwhile, a novel touch unit is designed in the scheme, and the interaction problem of the system is effectively solved.
(2) The utility model discloses a frequency conversion return circuit, alternating current control return circuit and the three return circuit of direct current return circuit are drawn forth by 380V three-phase alternating current power supply to main circuit, and circuit structure is simple, reasonable in design, realization convenience and with low costs.
(3) The utility model discloses a control circuit adopts the PLC module as the controller, connects converter, station accuse center, site sensor and touch-sensitive screen, and circuit structure is simple, and reasonable in design realizes conveniently and with low costs.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings required for the embodiments will be briefly described below, and obviously, the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic circuit diagram of the power supply unit of the present invention;
fig. 3 is a schematic diagram of a PLC unit DI interface connection of the present invention;
fig. 4 is a schematic diagram of the PLC unit DO interface connection of the present invention;
fig. 5 is a schematic diagram of the connection of the PLC units AI and AO of the present invention.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 5, the oil field pumping unit networking frequency conversion monitoring device comprises a power supply unit, a pumping unit frequency conversion unit, a PLC unit, a station control center unit, a wireless indicator diagram sensor and a touch control unit, wherein: the power supply unit is used for supplying power to the pumping unit frequency conversion unit, the PLC unit, the station control center unit, the touch control unit and the pumping unit; the PLC unit is used for data storage, operation and analysis, the PLC unit is connected with the frequency conversion unit of the oil pumping unit through an I/O port, the PLC unit is connected with the station control center unit through an Ethernet interface, the PLC unit is connected with the wireless indicator diagram sensor through an RS485 shielded twisted pair, and the PLC unit is connected with the touch unit through an RS485 shielded twisted pair; the frequency conversion unit of the oil pumping unit receives a start-stop command and a frequency converter speed given signal sent by the PLC unit and controls the working state of the oil injection and pumping unit; the station control central unit is an industrial personal computer; the wireless indicator diagram sensor is used for acquiring current, power, displacement and load signals of the oil pumping unit; the touch unit consists of a touch screen, a plurality of selector switches, buttons and indicator lamps, wherein the selector switches and the buttons are used for receiving operation signals, and the indicator lamps are used for displaying the working state of the system.
The utility model discloses a current beam-pumping unit has configured the frequency conversion unit, and the frequency conversion unit can control and change the number of strokes of beam-pumping unit, realizes intermittent type according to the real-time change of indicator diagram data and takes out and stop, and improve equipment utilization efficiency avoids extravagant electric energy. Meanwhile, a novel touch unit is designed in the scheme, and the interaction problem of the system is effectively solved. In addition, the technical scheme of the existing station control center unit and the wireless indicator diagram sensor is utilized, the three-phase voltage, the three-phase current, the running state and the indicator diagram data of the oil production machine can be remotely monitored, the data of equipment such as a digital measuring instrument, a 4-20mA analog quantity sensor and a PLC (programmable logic controller) are supported to be collected, the remote solution of the oil field Internet of things has a relay output function, and the oil production machine can be remotely started and stopped. The system has the advantages of on-site power failure, oil extraction machine failure, voltage phase loss and automatic alarm, and realizes the function of automatic shutdown or timed start when the parameters are abnormal. And the remote setting of the working parameters and the upper and lower limit alarm values of the parameters of the oil production well monitoring terminal is supported. And automatically generating a statistical report and a trend analysis curve of the operating parameters or wellhead production data of the oil production machine.
In this embodiment, the station control center unit may adopt an IPC-610L type industrial control machine, and the PLC unit may adopt a SMART200PLC type controller. The field device can send the indicator diagram sensor data to the PLC 485 communication interface through the wireless ZigBee module.
In the figure, the power supply unit includes a main power supply circuit, a PLC power supply circuit and a switching power supply circuit, wherein: the main power supply circuit comprises a molded case circuit breaker QF1, a first alternating current contactor KM1, a second alternating current contactor KM2 and a third alternating current contactor KM3, three-phase power of the main circuit is divided into two branches after passing through the molded case circuit breaker QF1, one branch is connected with an external oil outlet pump M1 through the first alternating current contactor KM1, the other branch is connected with the input end of a frequency converter VFD1 of a frequency conversion unit of the pumping unit through the second alternating current contactor KM2, the output end of the frequency converter VFD1 is connected with the external oil outlet pump M1 through the third alternating current contactor KM3, and a control port of the frequency converter VFD1 is provided with a frequency operation switch KA 1; the PLC power supply circuit comprises a miniature circuit breaker QF2, and three-phase power of a main circuit is connected to a power supply wiring live wire terminal and a zero line terminal of the PLC unit through the miniature circuit breaker QF 2; the power supply circuit of the switching power supply comprises a small circuit breaker QF3 and a switching power supply, wherein main circuit three-phase power enters the switching power supply through a small circuit breaker QF3, and the switching power supply converts AC220V into DC 24V.
Specifically, the utility model discloses a frequency conversion return circuit, alternating current control return circuit and the three return circuit of direct current return circuit are drawn forth by 380V three-phase alternating current power supply to main circuit, and circuit structure is simple, reasonable in design, realization convenience and with low costs.
In the figure, the frequency conversion unit adopts a GD200A type frequency converter, wherein: the +24V end and the S1 end of a switching value input terminal of the GD200A type frequency converter are connected to a normally open contact of a frequency operation switch KA 1; an analog quantity input terminal AIn end and an AGND end of the GD200A type frequency converter are connected to an AQ0+ end and an AQ 0-end of the SMART200PLC type controller; the A/N end and GND end of the analog output terminal of the GD200A type frequency converter are connected to the AI0+ end and AI 0-end of the SMART200PLC type controller; the switch output terminals RA and RB of the GD200A type frequency converter are respectively connected to the coil of the relay, and the RC terminal of the GD200A type frequency converter is connected to the AC220V output by the micro circuit breaker QF 2.
It should be noted that the frequency conversion unit can realize frequency conversion operation, frequency conversion fault, frequency conversion speed, frequency converter under-voltage, over-voltage protection, frequency converter open-phase protection and frequency converter overload protection state reading; meanwhile, the AI and AO ports of the PLC system send start-stop commands and frequency converter speed setting signals to the frequency conversion system.
Specifically, the touch screen of the touch unit is connected with the PLC unit through an RS485 shielded twisted pair, and the touch screen is an MCGS product
In a specific application, the touch unit comprises an in-situ/computer selection button SA1, an emergency stop button espop and a fault reset button S1, and a system fault indicator light HA, wherein: the on-site/computer selection button SA1 is a double-position button and comprises two groups of contacts, wherein one end of one group of contacts is connected with the I0.0 terminal of the SMART200 type controller, and the other end of the one group of contacts is connected with the anode output end 24V of the switching power supply circuit; one end of the other group of contacts of the local/computer selection button SA1 is connected with the I0.1 terminal of the SMART200 type controller, and the other end is connected with the anode output end 24V of the switching power supply circuit; the emergency stop button ESTOP is a reset button, one end of the emergency stop button ESTOP is connected with an I0.2 terminal of the SMART200 type controller, and the other end of the emergency stop button ESTOP is connected with a positive electrode output end 24V of the switching power supply circuit; the fault reset button S1 is a reset button, one end of the fault reset button is connected with the I0.3 terminal of the SMART200 type PLC, and the other end of the fault reset button is connected with the anode output end 24V of the switching power supply circuit; one end of the system fault indicator lamp HA is connected with an I0.4 terminal of the SMART200 type controller, and the other end is connected with a positive electrode output end 24V of the switching power supply circuit. In the figure, the control of the relays KA1 to KA6 and the ac contactors KM1 to KM3 is performed by a PLC unit.
It should be noted that, in order to improve the reliability of the device, two modes of local and remote control operation are adopted. When the pumping unit is in place, the operation frequency is set, the touch screen starting button is pressed, the pumping unit starts to operate, the PLC records displacement and load change data, displays a work diagram and stroke frequency, the stop button is pressed, and the pumping unit stops operating after finishing the last downstroke. And during remote control, accurate intelligent control is realized according to the speed regulation principle. The upper computer of the station control center automatically records instrument data, forms a trend and a report, and is convenient to query; when the system generates alarm and fault signals, the frequency conversion system sends out sound alarm, and the upper computer of the station control center automatically records according to the occurrence and recovery time to form a table.
In practical application, the device can realize automatic monitoring of the oil pumping unit in an oil field, if the oil pumping unit is in an abnormal, uneconomical or underground abnormal operation state, an alarm system can be triggered, the whole system mainly comprises equipment failure alarm, indicator diagram abnormal interval alarm, indicator diagram abnormal alarm, yield abnormal alarm and the like of the oil pumping unit, and priority setting is carried out on the alarms in different levels, so that the alarm information can be distinguished, shutdown processing is required under special conditions, and workers need to carry out priority processing according to accident levels. When the oil pumping unit in the oil field is started, the current, power, displacement, load, stroke and frequency of stroke obtained by the indicator diagram sensor need to be continuously monitored, and the speed regulation control is realized according to the following principle:
(1) the pumping unit is required to be directly stopped when non-negligible faults (rod breakage, air lock, plunger separation from a pump barrel, continuous pumping with spraying, air pumping and the like) occur.
(2) If other non-mechanical faults occur, if working conditions such as insufficient liquid supply, high impact and the like occur, a diagnosis result shows that the stroke frequency speed needs to be reduced, if the pump efficiency is increased, the stroke frequency speed is continuously adjusted in the same direction, and otherwise, the stroke frequency speed is increased to the speed before adjustment; if the impact is slow, the impact frequency speed is properly adjusted upwards to reach the standard power frequency;
(3) in the actual oil extraction process, for the working conditions of the loss of the traveling valve, the loss of the fixed valve and the loss of the double valves, no adjustment is made or the number of times of stroke is properly increased to fill up the lost part within the tolerable degree, because the well outlet cost of the pumping unit at one time is far higher than the loss of the loss; the leakage exceeds a certain range, which is reflected in that the pump efficiency is reduced or no oil is produced, the oil pump needs to be stopped and replaced by the double valves of the oil pump.
According to the principle, the frequency conversion control technology is adopted to remotely adjust the stroke frequency of the oil pumping unit, so that the oil pumping unit is kept in the production operation in the optimal state, the higher oil extraction efficiency can be ensured, and a large amount of electric energy consumption can be saved.
The implementation of the speed regulation control is completed based on the existing software or control program, and the above description is only for better understanding of the proposed hardware structure of the present solution.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. The utility model provides an oil field beam-pumping unit networking frequency conversion monitoring device which characterized in that, includes power supply unit, beam-pumping unit frequency conversion unit, PLC unit, station accuse central unit, wireless indicator diagram sensor and touch-control unit, wherein:
the power supply unit is used for supplying power to the pumping unit frequency conversion unit, the PLC unit, the station control center unit, the touch control unit and the pumping unit;
the PLC unit is used for data storage, operation and analysis, the PLC unit is connected with the frequency conversion unit of the oil pumping unit through an I/O port, the PLC unit is connected with the station control center unit through an Ethernet interface, the PLC unit is connected with the wireless indicator diagram sensor through an RS485 shielded twisted pair, and the PLC unit is connected with the touch unit through an RS485 shielded twisted pair;
the frequency conversion unit of the oil pumping unit receives a start-stop command and a frequency converter speed given signal sent by the PLC unit and controls the working state of the oil injection and pumping unit;
the station control central unit is an industrial personal computer;
the wireless indicator diagram sensor is used for acquiring current, power, displacement and load signals of the oil pumping unit;
the touch control unit comprises a touch screen, a plurality of selector switches, a button and an indicator light, wherein the selector switches and the button are used for receiving an operation signal, and the indicator light is used for displaying the working state of the system.
2. The oil field pumping unit networking frequency conversion monitoring device of claim 1, characterized in that, the power supply unit includes main supply circuit, PLC supply circuit and switching power supply circuit, wherein:
the main power supply circuit comprises a molded case circuit breaker (QF1), a first alternating current contactor (KM1), a second alternating current contactor (KM2) and a third alternating current contactor (KM3), three-phase electricity of the main circuit passes through the molded case circuit breaker (QF1) and then is divided into two branches, one branch is connected with an external oil outlet pump (M1) through the first alternating current contactor (KM1), the other branch is connected with the input end of a frequency converter (VFD1) of a pumping unit frequency conversion unit through the second alternating current contactor (KM2), the output end of the frequency converter (VFD1) is connected with the external oil outlet pump (M1) through the third alternating current contactor (KM3), and a frequency operation switch (KA1) is installed on a control port of the frequency converter (VFD 1);
the PLC power supply circuit comprises a miniature circuit breaker (QF2), and the three-phase power of the main circuit is connected to a power supply wiring live wire terminal and a zero line terminal of the PLC unit through the miniature circuit breaker (QF 2);
the power supply circuit of the switching power supply comprises a miniature circuit breaker (QF3) and a switching power supply, wherein main circuit three-phase power enters the switching power supply through the miniature circuit breaker (QF3), and the switching power supply converts AC220V into DC 24V.
3. The oil field pumping unit networking variable frequency monitoring device of claim 1, wherein the PLC unit adopts a SMART200PLC type controller.
4. The oil field pumping unit networking frequency conversion monitoring device of claim 1, wherein the frequency conversion unit adopts a GD200A type frequency converter, wherein: the +24V end and the S1 end of a switching value input terminal of the GD200A type frequency converter are connected to a normally open contact of a frequency operation switch (KA 1); an analog quantity input terminal AIn end and an AGND end of the GD200A type frequency converter are connected to an AQ0+ end and an AQ 0-end of the SMART200PLC type controller; the A/N end and GND end of the analog output terminal of the GD200A type frequency converter are connected to the AI0+ end and AI 0-end of the SMART200PLC type controller; the switch output terminals RA and RB of the GD200A type frequency converter are respectively connected to the coil of the relay, and the RC terminal of the GD200A type frequency converter is connected to the AC220V output by the micro circuit breaker (QF 2).
5. The networked variable-frequency monitoring device for the pumping units in the oil fields as claimed in claim 1, wherein the station control center unit adopts an IPC-610L type industrial control machine.
6. The oil field pumping unit networking frequency conversion monitoring device of claim 1, wherein the touch screen of the touch unit is connected with the PLC unit through an RS485 shielded twisted pair.
7. The networked variable frequency monitoring device of an oilfield pumping unit according to claim 1, wherein the touch control unit comprises an on-site/computer selection button (SA1), an emergency stop button (ESTOP) and a fault reset button (S1), and a system fault indicator light (HA), wherein:
the local/computer selection button (SA1) is a double-position button and comprises two groups of contacts, wherein one end of one group of contacts is connected with the I0.0 terminal of the SMART200 type controller, and the other end of the one group of contacts is connected with the anode output end 24V of the switching power supply circuit; one end of another group of contacts of the local/computer selection button (SA1) is connected with an I0.1 terminal of the SMART200 type controller, and the other end is connected with a positive electrode output end 24V of the switching power supply circuit;
the emergency stop button (ESTOP) is a reset button, one end of the ESTOP is connected with an I0.2 terminal of the SMART200 type controller, and the other end of the ESTOP is connected with a positive electrode output end 24V of the switching power supply circuit;
the fault reset button (S1) is a reset button, one end of the fault reset button is connected with an I0.3 terminal of the SMART200PLC, and the other end of the fault reset button is connected with a positive electrode output end 24V of the switching power supply circuit;
one end of the system fault indicator lamp (HA) is connected with an I0.4 terminal of the SMART200 type controller, and the other end of the HA is connected with a positive electrode output end 24V of the switching power supply circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221715783.8U CN217506408U (en) | 2022-06-29 | 2022-06-29 | Networking frequency conversion monitoring device for oil pumping unit in oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221715783.8U CN217506408U (en) | 2022-06-29 | 2022-06-29 | Networking frequency conversion monitoring device for oil pumping unit in oil field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217506408U true CN217506408U (en) | 2022-09-27 |
Family
ID=83341083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221715783.8U Active CN217506408U (en) | 2022-06-29 | 2022-06-29 | Networking frequency conversion monitoring device for oil pumping unit in oil field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217506408U (en) |
-
2022
- 2022-06-29 CN CN202221715783.8U patent/CN217506408U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2924742Y (en) | Transformer forced-oil-circulation air-cooled intelligent control system | |
| CN204140356U (en) | A kind of mine air compressor control system based on PLC | |
| CN211737353U (en) | Intelligent control electrical system of hydropower station ball valve and oil pressure device based on fault diagnosis | |
| CN201943928U (en) | Automatic control device for sewage pumping stations | |
| CN217506408U (en) | Networking frequency conversion monitoring device for oil pumping unit in oil field | |
| CN202370808U (en) | Vacuum automation control system | |
| CN205475474U (en) | Automatic water supply control system of inverter type constant voltage | |
| CN205001610U (en) | Cell -phone remote control executor | |
| CN209250528U (en) | A kind of industrial water pump motor work system | |
| CN209625059U (en) | Water pump perseverance automatic Control Systems of Liquids Height | |
| CN201464933U (en) | Networked temperature control device based on singlechip | |
| CN202855148U (en) | Constant voltage constant current electric control cabinet used for teaching | |
| CN207866916U (en) | Electricity feedback energy-saving servo device energy conservation rate Auto-Test System | |
| CN215642356U (en) | PLC controlled filtering system | |
| CN201843764U (en) | Remote monitoring device of low-temperature pump/compressor system | |
| CN206057894U (en) | Air compressor machine complex control system | |
| CN219717946U (en) | Power remote control device and electric energy terminal equipment | |
| CN218825261U (en) | Novel air compression drying tower integrated control device | |
| CN212079593U (en) | Energy-saving control system for air compression station of cement plant | |
| CN203086386U (en) | Novel start control device for hydraulic oil pump of shielding machine | |
| CN216016745U (en) | Low-voltage motor restart control system based on programmable controller | |
| CN201838992U (en) | Wireless or carrier motor protector | |
| CN209761413U (en) | Horizontal well condition detection control system | |
| CN203434915U (en) | Energy-saving controller of air compressor | |
| CN219220755U (en) | Special controller of energy-saving water pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 710,000 Room 1003, 10th Floor, Building 11, Zhongdeng Wenjing Times, Xi'an Economic and Technological Development Zone, Shaanxi Province Patentee after: SHAANXI KEWO ELECTRIC Co.,Ltd. Address before: Room 11301, 13 / F, unit 1, building V Shidai 1, Lijun building, no.6, Fengcheng 1st Road, economic development zone, Xi'an City, Shaanxi Province, 710000 Patentee before: SHAANXI KEWO ELECTRIC Co.,Ltd. |