Abstract

Provided in the present disclosure are a filtering, coalescence, separation and oil removal system and a separation performance monitoring method therefor. A support body in a filter element support member is arranged at the upper end of a pipe body; a guide transition section in a coalescence filter element is detachably arranged at the upper end of a coalescence filtering section, the coalescence filtering section and the guide transition section are both sleeved outside of the support body, and a locking nut locks the support body and the guide transition section; and an air inlet connecting pipe and/or an air outlet connecting pipe are connected to an online separation performance monitoring system, and the monitoring system comprises a medium state equivalent converter, a flow meter and an online droplet particle concentration monitor. By means of the present disclosure, the technical problem of an increase in a pressure drop caused by a baffle arranged at an outlet of a filtering, coalescence and separation apparatus, or inconvenient operations and maintenance caused by a long distance between a filter element and a quick-opening blind flange port is solved; a separation performance test can be analyzed in a timely manner to provide data support for separation performance evaluation and performance optimization and improvement of a device; and the interference of the providing of a measurement channel on a medium flowing state is reduced by means of the medium state equivalent converter.

IPC Classes  ?

• B01D 50/00 - Combinations of methods or devices for separating particles from gases or vapours
• B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
• C02F 1/40 - Devices for separating or removing fatty or oily substances or similar floating material
• C10L 3/10 - Working-up natural gas or synthetic natural gas

Abstract

An intelligent control method and apparatus for a quick-open pressure-bearing device system is provided. The method comprises an intelligent integrated control system receiving an opening/closing instruction of a pressure-bearing device system. Upon receipt of an opening instruction, the intelligent integrated control system scans and reads an internal state of a pressure-bearing device and the reading of a pressure transmitter, and determines whether an opening condition is satisfied. If yes, the system sequentially controls functional systems to be automatically opened. If not, the system controls corresponding valves to be automatically closed, automatically determines whether to enter a blowdown process, and performs corresponding automatic blowdown or pressure relief processing and an opening process again after completion. Upon receipt of a closing instruction, the intelligent integrated control system sequentially controls the functional systems to be automatically closed. After the closing is completed, the system completes the opening of the pressure-bearing device system.

IPC Classes  ?

• G05D 16/20 - Control of fluid pressure characterised by the use of electric means
• G05B 13/02 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric

Abstract

The present description relates to the technical field of optical fiber communication, and provides a method and apparatus for detecting the ground surface position of an optical fiber splicing point, a device, and a storage medium. The apparatus comprises a light source and a light receiving processor. The light source provides continuous laser and pulse laser converted from the continuous laser, and inputs the pulse laser into an optical fiber to be detected. The light receiving processor extracts backward Rayleigh light and backward dual-channel Raman light from backward scattered light in said optical fiber; on the basis that electric signal intensity of the backward dual-channel Raman light and backward coherent Rayleigh light formed by coherence of the backward Rayleigh light and the continuous laser is distributed along the distance, determines a target position where an optical fiber splicing point on said optical fiber is located; on the basis of a vibration signal in the backward coherent Rayleigh light obtained under excitation of specific vibration along a ground surface position of said optical fiber, determines a relative position of a ground surface excitation position on said optical fiber; and when the relative position is consistent with the target position, uses the ground surface excitation position as the ground surface position of the optical fiber splicing point.

IPC Classes  ?

• H04B 10/079 - Arrangements for monitoring or testing transmission systemsArrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal

Abstract

The present invention relates to the field of oil and gas pipeline tunnel design. Disclosed are a river crossing pipeline and an installation method therefor. The installation method comprises: S1, respectively excavating a deep vertical shaft and a shallow vertical shaft on two sides of the river, and excavating a tunnel between the deep vertical shaft and the shallow vertical shaft, wherein the tunnel comprises a horizontal section directly communicated with the deep vertical shaft and an ascending section directly communicated with the shallow vertical shaft; and S2, excavating a first trench on the side of the shallow vertical shaft facing away from the river, and conveying a welded main pipeline into the tunnel from one side of the shallow vertical shaft through the first trench, so that a first end of the main pipeline reaches the deep vertical shaft. By means of the technical solution, the main pipeline is allowed to be conveyed into the tunnel after being welded on the ground, so that the fully-automatic welding efficiency of pipelines is improved, the construction period is shortened, and the welding construction space does not need to be arranged in the tunnel, thereby shortening the construction period of tunnel excavation, and reducing the engineering cost.

IPC Classes  ?

• F16L 1/16 - Laying or reclaiming pipes on or under water on the bottom
• E21D 9/06 - Making by using a driving shield

Abstract

An intelligent control method and apparatus for a quick-open pressure-bearing device (2) system. The method comprises: an intelligent integrated control system (4) receives an opening/closing instruction of a pressure-bearing device (2) system; upon receipt of an opening instruction, the intelligent integrated control system (4) scans and reads an internal state of a pressure-bearing device (2) and the reading of a pressure transmitter (33), and determines whether an opening condition is satisfied; if yes, the intelligent integrated control system (4) sequentially controls functional systems to be automatically opened; if not, the intelligent integrated control system (4) controls corresponding valves to be automatically closed, automatically determines whether to enter a blowdown process, and performs corresponding automatic blowdown or pressure relief processing, and performs an opening process again after completion; and upon receipt of a closing instruction, the intelligent integrated control system (4) sequentially controls the functional systems to be automatically closed, and after the closing is completed, the intelligent integrated control system (4) automatically identifies the internal state of the pressure-bearing device (2), and sequentially controls, according to the instruction, corresponding valves to be automatically opened to complete the opening of the pressure-bearing device (2) system, thereby realizing intelligent control of the pressure-bearing device (2) system.

IPC Classes  ?

• F17D 3/01 - Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
• F17D 3/00 - Arrangements for supervising or controlling working operations
• F17D 5/02 - Preventing, monitoring, or locating loss
• F16J 13/02 - Detachable closure membersMeans for tightening closures

Abstract

Disclosed is a lift and rotation mechanism for a quick door-opening device. The power-output end of a first motor of a lift component of the mechanism is connected to one end of a screw rod and the other end of the screw rod is connected to one end of a circular pipe; one end of a tubular body is provided with a connection component, with one end of a coupling component being connected to the connection component; the other end of the circular pipe is removably connected to a circular door by an annular connection; the output shaft of a second motor of a rotary component is removably connected to one end of a rotary shaft provided within a supporting seat removably connected to an end flange; and a circular disk is removably connected to the other end of the rotary shaft and is fixedly connected to the connection component.

IPC Classes  ?

• E05F 15/603 - Power-operated mechanisms for wings using electrical actuators using rotary electromotors
• F16J 13/22 - Covers or similar closure members for pressure vessels in general with movement parallel to the plane of the opening
• E06B 5/12 - Doors, windows, or like closures for special purposesBorder constructions therefor for protection against air-raid or other war-like actionDoors, windows, or like closures for special purposesBorder constructions therefor for other protective purposes against air pressure, explosion, or gas

Abstract

An optical fiber control system for safety early-warning includes a phase
fading control
and/or a polarization fading control. A polarization modulator is serially
connected
between a laser and a first multiplex demultiplexer. The first multiplex
demultiplexer is
connected to a second multiplex demultiplexer by three strands of optical
fibers. The first
multiplex demultiplexer is connected to two photoelectric detectors, the
outputs of which are
connected to two A/Ds. Outputs of the two A/Ds are connected to a
photoelectric signal
processing circuit, one output of which is connected to a polarization
controller. Outputs of
polarization controller are connected to a polarization modulator and a phase
modulator
which is connected to the first strand optical fiber. The other output of the
photoelectric
signal processing circuit is connected to a phase controller, the output of
which is connected
to the phase modulator which is connected to the second strand optical fiber.

IPC Classes  ?

• F17D 5/02 - Preventing, monitoring, or locating loss
• G01D 5/353 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
• G01H 9/00 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
• G02F 1/01 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour