CN201288530Y

CN201288530Y - Program controlled intermediate frequency power supply apparatus

Info

Publication number: CN201288530Y
Application number: CNU200820014421XU
Authority: CN
Inventors: 刘世江
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-23
Filing date: 2008-07-23
Publication date: 2009-08-12
Anticipated expiration: 2018-07-23

Abstract

The utility model relates to a device which is used for intermediate frequency heating in an oil field in the oil production of oil field, especially to a program controlled intermediate frequency power supply device. The program controlled intermediate frequency power supply device is composed of the following components: an alternating current contactor (4), a filtering capacitor (6), an IGBT module (7), a rectifying module (8), a driving board (10) and a master control board (11), wherein, the lower side of alternating current contactor (4) is installed with a closed-loop temperature controlling device (2) installed with a thermocouple (16) and a closed-loop pressure transmitter (3) installed with a pressure sensor (17). The thermocouple and the other end of pressure sensor are installed in the primary oil outlet in using. The closed-loop temperature controlling device and the closed-loop pressure transmitter are installed with the high limit and low limit of temperature and pressure. When the temperature of outlet of wellhead exceeds the high limit or the temperature is lower than the low limit, the intermediate frequency power source automatically reduce and increase heating power for adjusting outlet temperature and increasing heating power or reduces heating power for adjusting outlet pressure.

Description

Program control intermediate frequency power supply device

Technical field:

The utility model relates in the oil field operation, the device of oil well heating in medium frequency, especially: program control intermediate frequency power supply device.

Prior art:

At present, in the oil field operation, the device of oil well heating in medium frequency is when heating, can not adjust heating power automatically according to the variation of wellhead temperature, when even the temperature of well head is very high, intermediate frequency power supply still with the same power heating, is wasted electric power energy like this, and outlet temperature can not increase heating power again when low automatically; When the oil pumper load variations, intermediate frequency power supply can not adjusted the pressure that heating power is stablized well head because of the viscosity of crude oil automatically yet, therefore greatly reduces operating efficiency.

Summary of the invention

The program control intermediate frequency power supply device of the utility model, technical problem to be solved is: a kind ofly can regulate temperature and the load of controlling well head automatically according to the temperature of well head and load, thereby reduce waste of electric energy and increased the operating efficiency of oil recovery; To achieve these goals, the utility model be achieved in that program control intermediate frequency power supply device by: energy meter, A.C. contactor, power-line terminal, filter condenser, IGBT module, rectification module, copper bar, master control borad, drive plate, output wiring terminal, intermediate-frequency transformer, transformer-cabinet and intermediate frequency power supply casing are formed; Energy meter, A.C. contactor, power-line terminal, master control borad and drive plate are installed in the intermediate frequency power supply casing, above master control borad and drive plate, filter condenser, IGBT module and rectification module are installed by copper bar; Output wiring terminal and intermediate-frequency transformer are installed in the transformer-cabinet below the intermediate frequency power supply casing; The downside of A.C. contactor is equipped with closed loop temperature controller and closed loop pressure transmitter; Wherein, on the closed loop temperature controller, thermocouple is housed; On the closed loop pressure transmitter, pressure sensor is installed.When use is of the present utility model, program control intermediate frequency power supply device is installed in the pumping unit of well rear side, thermocouple and the other end of pressure sensor are installed in the outlet crude oil; With closed loop temperature controller and closed loop pressure transmitter design temperature and upper limit of pressure, lower limit; The utility model beneficial effect compared with prior art is: when the temperature of the outlet of well head surpass last in limited time, intermediate frequency power supply reduces heating power automatically and adjusts outlet temperature, in limited time, the automatic heating power of intermediate frequency power supply is adjusted outlet temperature under the temperature of outlet is lower than; Last intermediate frequency power supply increases heating power automatically and adjusts mouth pressure in limited time when the pressure of the outlet of well head surpasses, and when the temperature of outlet pressure outlet is lower than down in limited time, intermediate frequency power supply reduces heating power automatically and adjusts mouth pressure; Its operating principle is: three-phase alternating current 380V power supply is inserted through power-line terminal, 550V direct current through three phase rectifier module rectification output, the A.C. contactor adhesive is after the copper bar inflow, filter condenser filtering is after copper bar send the alternating current of change for the IGBT module, the work of drive plate control IGBT module, the work of master control borad control drive plate; IGBT module output AC is electrically coupled to intermediate-frequency transformer, and intermediate-frequency transformer outputs to output wiring terminal, power supply is provided for the down-hole heating cable; Closed loop temperature controller, closed loop pressure transmitter are directly given master control borad with signal, control heating power; Energy meter metering intermediate frequency power supply consumption; When adjusting the work of temperature and pressure mainly is that closed loop temperature controller and closed loop pressure transmitter provide signal by the signal that sensor provides to mainboard; Mainboard is given the drive plate issue an order, and the IGBT output voltage is adjusted in drive plate control, thereby increases and reduce the cable power output; So not only save electric energy, but also can control Crude viscosity extraction smoothly in ideal conditions.

Description of drawings

Accompanying drawing is program control intermediate frequency power supply device rough schematic.

The specific embodiment

Below with reference to the accompanying drawings (as shown in the figure) the utility model is described further, program control intermediate frequency power supply device by: power-line terminal 1, A.C. contactor 4, energy meter 5, filter condenser 6, IGBT module 7, rectification module 8, copper bar 9, drive plate 10, master control borad 11, output wiring terminal 12, intermediate-frequency transformer 13, transformer-cabinet 14 and intermediate frequency power supply casing 15 are formed; Earlier in intermediate frequency power supply casing 15, be connected and installed with energy meter 5, A.C. contactor 4, power-line terminal 1, master control borad 11 and drive plate 10 by lead; Above master control borad 11 and drive plate 10, filter condenser 6, IGBT module 7 and rectification module 8 are installed then by copper bar 9; In transformer-cabinet 14, pass through lead connection output wiring terminal 12 and intermediate-frequency transformer 13; At last, the downside at A.C. contactor 4 is equipped with closed loop temperature controller 2 and closed loop pressure transmitter 3; Thermocouple 16 is installed on closed loop temperature controller 2; Pressure sensor 17 is installed on closed loop pressure transmitter 3.

Claims

1, a kind of program control intermediate frequency power supply device by: power-line terminal (1), A.C. contactor (4), energy meter (5), filter condenser (6), IGBT module (7), rectification module (8), copper bar (9), drive plate (10), master control borad (11), output wiring terminal (12), intermediate-frequency transformer (13), transformer-cabinet (14) and intermediate frequency power supply casing (15) are formed; Wherein: energy meter (5), A.C. contactor (4), power-line terminal (1), master control borad (11) and drive plate (10) are installed in intermediate frequency power supply casing (15), by copper bar (9) filter condenser (6), IGBT module (7) and rectification module (8) are installed in the top of master control borad (11) and drive plate (10); In the transformer-cabinet (14) of intermediate frequency power supply casing (15) below, output wiring terminal (12) and intermediate-frequency transformer (13) are installed; It is characterized in that: the downside at A.C. contactor (4) is equipped with closed loop temperature controller (2) and closed loop pressure transmitter (3).

2, program control intermediate frequency power supply device according to claim 1 is characterized in that: thermocouple (16) is housed on closed loop temperature controller (2); Pressure sensor (17) is installed on closed loop pressure transmitter (3).