CN201507431U - Coal bed gas immersed pump drainage and extraction equipment control cabinet - Google Patents
Coal bed gas immersed pump drainage and extraction equipment control cabinet Download PDFInfo
- Publication number
- CN201507431U CN201507431U CN2009202234766U CN200920223476U CN201507431U CN 201507431 U CN201507431 U CN 201507431U CN 2009202234766 U CN2009202234766 U CN 2009202234766U CN 200920223476 U CN200920223476 U CN 200920223476U CN 201507431 U CN201507431 U CN 201507431U
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- control cabinet
- coal
- coal bed
- bed gas
- control
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Abstract
The utility model relates to a coal bed gas immersed pump drainage and extraction equipment control cabinet, a frequency conversion controller, a coal bed gas well temperature and pressure measurement instrument and a sampling and controlling processor are arranged in the control cabinet, the frequency conversion output of the frequency conversion controller is connected to the output terminal of the control cabinet by a three-phase sine filter, a three-phase reactor connected with the Y type is connected on a three-phase lead wire between the three-phase sine filter and the output terminal, the neutral point of the three-phase reactor is connected to the signal input end of the coal bed gas well temperature and pressure measurement instrument by a filter circuit, the control output of the sampling and controlling processor is provided with a water replenishing and drainage electrically operated valve control output ports, and the corresponding electrically operated valve driving circuits are connected on the two electrically operated valve control output ports, thereby realizing effective adjustment of descending speed of the coal bed gas well liquid level and solving the problem that a special signal transmission cable of a sensor in the well is easy to damage.
Description
Technical field
The utility model relates to Motor Control Field, is specifically related to a kind of coal-seam gas immersed pump row and adopts equipment control cabinet.
Background technique
Present coal-seam gas immersed pump row adopts equipment control cabinet, comprise the control cabinet cabinet, be provided with in the cabinet frequency-variable controller, coal bed gas well thermometric pressure instrumentation, sampling and control processing device are installed in the control cabinet, the frequency conversion output of frequency-variable controller is by three phase sine wave filter Access Control cabinet Out let; Sampling and control processing device mainly comprise center control processing device, this processor is provided with frequency-variable controller control signal interface, downhole sensor signaling interface, well outer sensor signaling interface, man-machine interaction monitor-interface, connects frequency-variable controller, coal bed gas well thermometric pressure instrumentation, well outer sensor, man-machine interaction monitor terminal successively.
In its development field of coal seam, the control of liquid level in the well and extraction liquid stickiness is directly had influence on the working stability of production efficiency, quality and the submerged type electric pump system of coal-seam gas, and existing control cabinet can only pass through simple motor speed-regulating, realization is to extracting the control of speed, thereby realize the purpose of control coal seam rate of pressure change, do not have special water inlet circuit control section to advancing the coal bed gas well inflow and water inlet speed is regulated, cause can not be effective problems such as the easy damage of ground exploitation of control coal-seam gas and electric pump system; The signal transmission cable of downhole sensor by special use is connected to the coal bed gas well thermometric pressure instrumentation in the control cabinet, signal transmission cable is longer, frequent and the borehole wall or miscellaneous equipment friction, and signal transmission cable damages easily, cause the sensor signal can't normal transmission, influence be produced.
The model utility content
The purpose of this utility model provides a kind of coal-seam gas immersed pump row and adopts equipment control cabinet, has realized effective adjusting of coal bed gas well liquid level lowering speed, has solved the problem that well inner sensor special signal transmission cable damages easily.
For achieving the above object, the utility model proposes a kind of coal-seam gas immersed pump row and adopt equipment control cabinet, frequency-variable controller is installed in the control cabinet, coal bed gas well thermometric pressure instrumentation, sampling and control processing device, the frequency conversion output of frequency-variable controller is by three phase sine wave filter Access Control cabinet Out let, on the three-phase conducting wire between three phase sine wave filter and the Out let, be connected with the three-phase reactor that a Y type is connected, the neutral point of this three-phase reactor is connected into the signal input part of coal bed gas well thermometric pressure instrumentation by an eliminator, the control output of sampling and control processing device is provided with moisturizing and draining mortor operated valve control output port, all be connected with corresponding mortor operated valve drive circuit on the two mortor operated valves control output port
Also be provided with retaining path electromagnetic valve switch relay and blowdown path electromagnetic valve switch relay in the cabinet, its control end all is connected in the liquid level sensor of water tank, and output terminal connects retaining path solenoid valve and blowdown path solenoid valve respectively.
The outer signal tenminal block is set is used for being connected of processor input signal and output signal; Sampling and control processing device are programmable logic controller (PLC); Be provided with cooling fan and lighting burner in the control cabinet.
The utility model utilizes the signal of the neutral line transmission downhole sensor of external electric pump three phase supply cable, and special-purpose signal transmssion line need not be set separately, has solved the problem that independent signal transmission cable damages easily; The control output of sampling and control processing device is provided with the mortor operated valve output port, be connected with the mortor operated valve drive circuit on the mortor operated valve output port, can control speed, cooperate the control output of frequency-variable controller to the coal bed gas well moisturizing, thus the rate of descent of liquid level in effective control well.
Description of drawings
Fig. 1 is an electrical schematic diagram of the present utility model.
Embodiment
As shown in Figure 1, main control loop switch QF1 is connected in the three-phase circuit, is the battery main switch of submerged type electric pump control cabinet, and two leads of drawing in the three-phase circuit connect control power transformer T1 by switch QF2, realize of the conversion of 380V voltage, be the control section power supply to 220V voltage.
Three-phase circuit between QF1 and QF2 connects the power input of frequency-variable controller A1, the frequency conversion output of A1 is carried out shaping filter through sine wave filter A2, be connected to external electric pump M1 by tenminal block XT2 again, sensor M2 and external electric pump are fixed together, the signal output part one end ground connection of sensor M2, the other end of output line is connected with the neutral point of the coil of stator of motor of external electric pump.Frequency-variable controller pin VC1 wherein is connected pin A01 and the GND in the sampling and the frequency-variable controller control signal interface of control processing device with GND, frequency-variable controller pin+485 and-485 are connected to the row's of the going up terminal of A+ and B-among the outer signal terminal XT1, and the enable switch SB of frequency-variable controller is connected pin FWD and X1 respectively with ST.
Coal bed gas well thermometric pressure instrumentation is by switch QF4 Access Control part power supply line, after the signal input part Y0 of this circuit passes through capacitor C 1 and signal input part Y1 is connected, series reactor L2, high pressure insure FU1, inductor L3 successively, and with dextrorotation wave filter A2 and tenminal block XT2 between the neutral point of the Y type reactor L1 that is connected on the threephase cable connect, inductor L3 connects the Y2 port of the end connection eliminator B5 of reactor L1, and the other end of inductor L3 connects the Y3 port of eliminator B5.RS485 interface in the coal bed gas well thermometric pressure instrumentation is connected to the row's of the going up terminal of A+ and B-among the XT1.The measurement signal of sensor M2 carries out the measurement signal transmission in the neutral point of the coil of stator of motor of external electric pump inserts the three-phase power circuit of this electric pump, and, after filtering, introduce coal bed gas well thermometric pressure instrumentation by the measurement signal of the neutral point output transducer M2 of the Y type reactor L1 that connects on the threephase cable between dextrorotation wave filter A2 and the tenminal block XT2.
Sampling and control processing device and monitoring touch screen are by switch QF3 Access Control part power supply line, realize the output of direct-current working volts respectively by two switch power P1 and P2, P1 for the sampling and the control processing device operating voltage is provided, P2 provides operating voltage for touch screen display, sampling and A+ in the control processing device testing signal interface are connected with B-after following row's terminal of A+ and B-reads the signal of frequency-variable controller A1 and coal bed gas well thermometric pressure instrumentation among the XT1, be connected to pin A1 (4) and the B1 (7) of touch screen display B2 respectively, and the ground wire of this interface links to each other with the ground wire of B2 corresponding interface; Pin A13 and ground wire thereof connect the wellhead temperature transmitter by XT1, and pin A14 and ground wire thereof connect the gas flow transmitter by XT1, and pin A15 connects the fluid flow transmitter by XT1; The pin A02 of moisturizing mortor operated valve control output port is connected VDC transmitter B3 and B4 respectively with draining mortor operated valve control output port A03, and the output terminal of B3 and B4 is connected moisturizing mortor operated valve signaling line lv1+, the lv1-of XT1 terminal and signaling line lv2+, the lv2-of draining mortor operated valve respectively.
Cooling fan and lighting circuit are by switch QF5 Access Control part power supply line, and cooling fan M3, M4 and lighting burner LD1, LD2 are connected in parallel, and are provided with make-and-break control switch separately.
The electromagnetic valve switch circuit is by switch QF6 Access Control part power supply line, by the liquid level sensor control auxiliary reclay J1 and the J2 of the liquid level sensor in the water tank, thereby realize retaining path electromagnetic valve switch and blowdown path electromagnetic valve switch are controlled.
Use for convenience and Centralized Monitoring, in the present embodiment radio communication circuit can be set, realize the remote monitoring of Surveillance center.
Claims (5)
1. a coal-seam gas immersed pump row adopts equipment control cabinet, frequency-variable controller is installed in the control cabinet, coal bed gas well thermometric pressure instrumentation, sampling and control processing device, the frequency conversion output of frequency-variable controller is by three phase sine wave filter Access Control cabinet Out let, it is characterized in that: on the three-phase conducting wire between three phase sine wave filter and the Out let, be connected with the three-phase reactor that a Y type is connected, the neutral point of this three-phase reactor is connected into the signal input part of coal bed gas well thermometric pressure instrumentation by an eliminator, the control output of sampling and control processing device is provided with moisturizing and draining mortor operated valve control output port, all is connected with corresponding mortor operated valve drive circuit on the two mortor operated valves control output port.
2. coal-seam gas immersed pump row as claimed in claim 1 adopts equipment control cabinet, it is characterized in that: also be provided with retaining path electromagnetic valve switch relay and blowdown path electromagnetic valve switch relay in the described cabinet, its control end all is connected in the liquid level sensor of water tank, and output terminal connects retaining path solenoid valve and blowdown path solenoid valve respectively.
3. coal-seam gas immersed pump as claimed in claim 2 row adopts equipment control cabinet, it is characterized in that: the outer signal tenminal block is set is used for being connected of processor input signal and output signal.
4. coal-seam gas immersed pump row as claimed in claim 3 adopts equipment control cabinet, and it is characterized in that: described sampling and control processing device are programmable logic controller (PLC).
5. coal-seam gas immersed pump row as claimed in claim 4 adopts equipment control cabinet, it is characterized in that: be provided with cooling fan and lighting burner in the control cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202234766U CN201507431U (en) | 2009-09-15 | 2009-09-15 | Coal bed gas immersed pump drainage and extraction equipment control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202234766U CN201507431U (en) | 2009-09-15 | 2009-09-15 | Coal bed gas immersed pump drainage and extraction equipment control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201507431U true CN201507431U (en) | 2010-06-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202234766U Expired - Fee Related CN201507431U (en) | 2009-09-15 | 2009-09-15 | Coal bed gas immersed pump drainage and extraction equipment control cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201507431U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806502A (en) * | 2015-05-18 | 2015-07-29 | 苏州美达斯机电有限公司 | Intelligent control circuit for water pump |
-
2009
- 2009-09-15 CN CN2009202234766U patent/CN201507431U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806502A (en) * | 2015-05-18 | 2015-07-29 | 苏州美达斯机电有限公司 | Intelligent control circuit for 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: 20100616 Termination date: 20150915 |
|
| EXPY | Termination of patent right or utility model |