Energy-saving electromagnetic three-way rotating valve for oil field

An electromagnetic three-way and rotary valve technology, applied in the field of electromagnetic valves, can solve problems such as the small diameter of the traction three-way valve body, affecting the normal measurement work, and burnout of the electromagnetic control coil, so as to achieve flexible rotation and reliable suction. , the effect of saving electric energy

Inactive Publication Date: 2014-11-26
CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The rotary electromagnetic three-way valve with the above structure still has the following disadvantages in use: 1. Due to the use of AC excitation control, the pull-in voltage adopts AC380V, and the holding voltage also adopts AC380V, and the surface of the electromagnet armature itself is uneven and the pull-in is not good. As well as the influence of many external factors, under frequent operating conditions, it is very easy to cause the electromagnetic control coil to burn out, the cost of replacing the coil is high, and it is a waste of electric energy
And seriously affected the normal progress of the measurement work
2. The starting and running noise is loud, rattling can be heard 100 meters away, which causes great pollution to the environment. The traction type three-way valve has a small caliber, long oil discharge time, and large power consumption; large oil leakage, metering Inaccurate

Method used

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  • Energy-saving electromagnetic three-way rotating valve for oil field
  • Energy-saving electromagnetic three-way rotating valve for oil field

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Experimental program
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Effect test

Embodiment 1

[0025] An energy-saving electromagnetic three-way rotary valve for oil fields, comprising an explosion-proof shell 1, a valve body 6, a valve core, a connecting rod mechanism, and an electromagnetic drive mechanism. There are three openings on the valve body 6, each connected with a flange 8, and the electromagnetic drive mechanism includes The electromagnetic drive coil 2 also includes a step change DC control circuit, the step change DC control circuit includes a first time relay and a second time relay, the first time relay and the second time relay are set in parallel, the first time relay and the second time relay are connected in parallel. The phase line of the power supply end of the second time relay is connected to the output end of the single well meter, the zero line is connected to the zero line of the single well meter, the output end of the first time relay is connected to the primary of the transformer, and the secondary of the transformer is connected to the firs...

Embodiment 2

[0032] The control principle of the step mutation DC control circuit:

[0033]The double-volume separator is composed of an upper separation chamber and a lower metering chamber. After the incoming oil and gas are separated by the upper separation chamber, the oil enters the lower metering chamber through a connecting pipe connected to an electromagnetic three-way rotary valve. The lower metering chamber is equipped with two float liquids. Level controller, when the oil reaches the lower liquid level, it starts timing, and when it reaches the upper liquid level, the output terminal of the single-well meter supplies power to the outside, starts the pump to discharge oil, and the No. 5 terminal of the single-well meter outputs 380V. Supply power to the step change DC control circuit and neutral line AC220V. At the second time, the relay starts to act. At the second time, the relay outputs AC220V, which is rectified by the second silicon bridge rectifier and outputs DC198V, which...

Embodiment 3

[0035] This embodiment is a specific description of the application of the present invention to the metering chamber of a double-volume separator. When the liquid level in the metering chamber of the double-volume separator rises to the upper float level controller, the DC controller sends a driving signal to the electromagnetic drive coil 2. At this time, the moving traction magnet 3 is attracted by the electromagnetic drive coil 2 to drive the shift fork 4 and connecting rod 5, so that the valve core in the valve body 6 rotates counterclockwise (in the direction shown in the figure), the pointer 7 moves from the horizontal position to the vertical position, the left and right horizontal pipelines connected to the valve body 6 are not connected to each other, and the valve body The left pipeline connected with 6 communicates with the vertical lower pipeline connected with valve body 6 (that is, the pointer rotates 90 0 When the two pipelines are connected), the right pipeline...

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Abstract

The invention discloses an energy-saving electromagnetic three-way rotating valve for an oil field. The energy-saving electromagnetic three-way rotating valve for the oil field comprises a step saltation direct-current control circuit, wherein the step saltation direct-current control circuit comprises a first time relay and a second time relay, and the first time relay and the second time relay are arranged in parallel; phase lines at the power supply ends of the first time relay and the second time relay are connected with the output end of a single-well metering device, and zero lines at the power supply ends of the first time relay and the second time relay are connected with the zero line of the single-well metering device; the output end of the first time relay is connected with the primary level of a transformer, the secondary level of the transformer is connected with the alternating current end of a first silicon bridge rectifier, and the direct current end of the first silicon bridge rectifier is connected with an electromagnetic drive coil; and the output end of the second time relay is connected with the alternating current end of a second silicon bridge rectifier, and the direct current end of the second silicon bridge rectifier is connected with the electromagnetic drive coil. The energy-saving electromagnetic three-way rotating valve provided by the invention realizes direct-current step saltation control, overcomes the defects of a pull-type alternating current magnetic valve, is flexible to rotate and is good in sealing property.

Description

technical field [0001] The invention relates to an electromagnetic valve, in particular to an energy-saving electromagnetic three-way rotary valve for oil fields, which is mainly suitable for oil well metering in oil fields. Background technique [0002] In the prior art, there are many metering methods for oil wells in oil fields. Changqing Oilfield Branch uses double-volume separators to measure oil wells. There are more than 200 traction-type AC electromagnetic three-way valves, and the electromagnets used are all MQ1. —5151 series. For example, Chinese Patent No. "CN02208446.0" discloses a rotary electromagnetic three-way valve for single well metering system of crude oil. Core, lower chamber port, upper chamber port, T-shaped passage, oil discharge outlet, electromagnetic coil in the explosion-proof casing, return spring between the explosion-proof casing and the valve cylinder, valve core in the valve cylinder, and T-shaped passage on the valve cylinder , Both ends o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/06F16K11/08
Inventor 高宝元诗林陈涛
Owner CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD
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