CN114893575B - Underwater vertically-installed chemical injection metering valve and installation method thereof - Google Patents
Underwater vertically-installed chemical injection metering valve and installation method thereof Download PDFInfo
- Publication number
- CN114893575B CN114893575B CN202210528010.7A CN202210528010A CN114893575B CN 114893575 B CN114893575 B CN 114893575B CN 202210528010 A CN202210528010 A CN 202210528010A CN 114893575 B CN114893575 B CN 114893575B
- Authority
- CN
- China
- Prior art keywords
- regulating valve
- end plate
- metering valve
- underwater
- valve
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/0041—Electrical or magnetic means for measuring valve parameters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/005—Electrical or magnetic means for measuring fluid parameters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/12—Arrangements for supervising or controlling working operations for injecting a composition into the line
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention relates to an underwater vertically-installed chemical injection metering valve and an installation method thereof, wherein the metering valve comprises the following components: the packaging module comprises a packaging shell, an upper end plate and a lower end plate, wherein the upper end plate and the lower end plate are assembled at the upper end and the lower end of the packaging shell; the electronic control module is assembled on the lower end face of the upper end plate, is positioned in the packaging shell and is electrically connected with the overwater main control station; the regulating valve is assembled on the upper end face of the lower end plate and is positioned in the packaging shell, and a regulating valve actuating mechanism, a linear displacement sensor assembly and a pressure transmitter assembly which are electrically connected with the electronic control module are installed on the regulating valve; the flowmeter is assembled on the upper end face of the lower end plate and located in the packaging shell, and a flow transmitter electrically connected with the electronic control module is installed on the flowmeter. The metering valve realizes the integration of two functions of flow metering and flow regulation by adopting a mode that a flowmeter and a regulating valve are tightly connected in series and integrated.
Description
Technical Field
The invention relates to an underwater vertically-installed chemical agent injection metering valve and an installation method thereof, belonging to the technical field of deepwater oil extraction.
Background
The underwater production system is widely applied to deepwater oil and gas fields and development of marginal oil fields, the injection of chemical agents plays an important role in the development of ocean oil and gas resources, the chemical agents are mainly used for improving the working efficiency of production equipment related to the underwater production system, protecting the normal operation of the production equipment and a wellhead pipeline, prolonging the durability of the equipment and the like. The underwater chemical injection metering valve is key equipment of an underwater production system, has the functions of providing chemical injection, metering and flow control for development of underwater oil and gas fields, simultaneously has installation operation of a diver or an underwater robot, can be independently recycled when the equipment needs to be overhauled or maintained, and can be secondarily lowered for installation after the maintenance and overhaul are finished.
The existing underwater chemical agent injection metering mode mainly comprises the following steps: independently metering chemical agents on the water production platform; the underwater chemical agent injection pipeline adopts a single metering mode, namely only one flow metering detection device is connected in series with the chemical agent pipeline. The scheme of metering the chemical agents on the water platform does not have the function of adjusting the injection amount of the chemical agents, and an additional adjusting valve needs to be configured on the platform, so that the precious space resources of the platform are occupied, and the design requirement of compact integration of the platform is not met. Its flow detection device fault rate of scheme of single measurement is high, in case flow detection device breaks down, just loses the measurement function and can't obtain the accurate injection volume of chemical agent, and this produces harmful effects to the normal production transportation of oil gas under water, brings the potential safety hazard even.
Disclosure of Invention
The invention provides a chemical agent injection metering valve vertically installed underwater and an installation method thereof, wherein the metering valve realizes integration of two functions of flow metering and flow regulation by adopting a mode of tightly connecting and integrating a flow meter and a regulating valve in series, and an auxiliary flow metering method is used for calculating the flow of the regulating valve while the chemical agent is metered by using the flow meter to realize the flow metering method of the two chemical agents.
In order to achieve the purpose, the invention adopts the following technical scheme:
the present invention provides in a first aspect an underwater vertically mounted chemical injection metering valve comprising:
the packaging module comprises a packaging shell, an upper end plate and a lower end plate, wherein the upper end plate and the lower end plate are assembled at the upper end and the lower end of the packaging shell;
the electronic control module is assembled on the lower end face of the upper end plate, is positioned in the packaging shell and is electrically connected with the overwater main control station;
the regulating valve is assembled on the upper end face of the lower end plate and is positioned in the packaging shell, and a regulating valve actuating mechanism, a linear displacement sensor assembly and a pressure transmitter assembly which are electrically connected with the electronic control module are installed on the regulating valve;
the flowmeter is assembled on the upper end face of the lower end plate and is positioned in the packaging shell, and a flow transmitter electrically connected with the electronic control module is installed on the flowmeter;
the flowmeter is connected with the regulating valve through a pipeline.
The chemical agent injection metering valve is characterized in that the chemical agent injection metering valve preferably comprises a regulating valve actuating mechanism, a servo motor, a reduction gearbox and a transmission mechanism, wherein the servo motor, the reduction gearbox and the transmission mechanism are sequentially connected in series, the transmission mechanism is connected with a regulating valve rod of the regulating valve, and the servo motor is installed on the lower end face of the upper end plate.
The chemical injection metering valve preferably further comprises a linear displacement sensor assembly including a first linear displacement sensor and a second linear displacement sensor, the first linear displacement sensor being connected to the regulator valve stem via a first drive link, the second linear displacement sensor being connected to the regulator valve stem via a second drive link.
The chemical injection metering valve, preferably, the pressure transmitter assembly includes a third pressure transmitter and a fourth pressure transmitter respectively installed at the inlet end and the outlet end of the regulating valve.
The chemical injection metering valve preferably further comprises a filter which is assembled on the upper end face of the lower end plate and is located in the packaging shell, and a first pressure taking module and a second pressure taking module are respectively mounted at the inlet end and the outlet end of the filter.
The chemical agent injection metering valve preferably further comprises an installation locking/unlocking transmission module, wherein the installation locking/unlocking transmission module is assembled in the packaging shell and comprises a transmission shaft, a rotation fixing pin, a movement guider and a latch which are sequentially connected in series.
Preferably, the movement guide is provided with a movement guide groove for restricting a movement stroke of the latch.
The chemical agent injection metering valve is characterized in that preferably, a torque tool interface is installed on the upper end face of the upper end plate, the lower end of the torque tool interface is connected with the transmission shaft, and the upper end of the torque tool interface is used for being connected with a torque tool.
Preferably, the lower end surface of the lower end plate is provided with an inflow hydraulic connector female end and an outflow hydraulic connector female end which are respectively integrated with an inflow hydraulic connector male end and an outflow hydraulic connector male end assembled on a valve seat of a matched installation base to form a chemical inflow interface and a chemical outflow interface.
Preferably, the lower end surface of the lower end plate is further provided with an electric connector pin end and a guide pin, the electric connector pin end is connected with an electric connector hole end on the valve seat, and the guide pin is connected with a guide pin hole on the valve seat.
A second aspect of the present invention provides a method of installing the chemical injection metering valve described above, including the steps of:
a diver or an underwater robot grabs a lifting ring on the chemical agent injection metering valve or conveys the lifting ring or a handle to the position above a matched installation foundation, then the lifting ring is placed into an installation sleeve, the lifting ring is rotated to align the handle with the guide groove, the underwater chemical agent injection metering valve is lowered, a first guide pin and a second guide pin which are positioned on the lower end plate penetrate through a corresponding first guide pin hole and a corresponding second guide pin hole on the valve seat under the guidance of the guide groove, and a latch penetrates through the latch groove to realize primary alignment; and a diver or an underwater robot connects a torque tool to the torque tool interface, rotates and operates the torque tool to drive the transmission shaft to rotate, so that the latch moves under the regulation of the movement guide groove, the latch rotates to be locked with the latch groove in a staggered mode, the torque tool continues to rotate, the latch is changed from the rotating motion into the linear backward pulling motion under the restriction of the movement guide groove, in the process, the female end of the inflow hydraulic connector and the female end of the outflow hydraulic connector are respectively in butt joint with the male end of the inflow hydraulic connector and the male end of the outflow hydraulic connector to realize secondary guiding, the pin end of the underwater electric connector is in butt joint with the hole end of the electric connector to realize tertiary guiding, and the diver or the underwater robot takes out the torque tool to complete installation.
Due to the adoption of the technical scheme, the invention has the following advantages:
1. the metering valve simultaneously adopts the flowmeter and the regulating valve, can simultaneously have flow metering and flow regulating functions, is convenient for the remote Cheng Ce to monitor the injection amount of the underwater chemical agent, and can realize the flow fixed value closed-loop control to ensure the stable and continuous injection of the chemical agent. Due to the adoption of the design of two flow metering modes, when the flow meter is not accurately metered or fails, the chemical agent metering function still works normally and is not invalid, so that the reliability of the chemical agent injection metering system is improved.
2. The device is designed according to the standard of API, wherein the torque tool interface is a rotary high-torque interface of API 17H fourth class, the handle is a TYPE A standard handle in API 17H, the standard communication of API 17F is adopted, the device can be conveniently and rapidly in communication connection with corresponding equipment of an underwater production system, the communication compatibility of the underwater chemical agent injection metering valve is improved, the standard design is adopted, the underwater chemical agent injection metering valve is convenient to install or disassemble and recover by using a universal tool, the operability of the device is improved, and the installation/recovery cost is reduced.
3. The device disclosed by the invention does not depend on single flowmeter metering output, and a high-precision flow measurement value is output through the fusion of flow data of the flowmeter and the regulating valve, so that the condition that the metering cannot be carried out or is inaccurate due to the fault of the flowmeter is avoided.
4. The device of the invention corresponds to the guide structures of the matched installation foundation one by one, realizes the coarse alignment, the first-stage guide, the second-stage guide and the third-stage guide in the installation process, and improves the installation reliability of the underwater chemical agent injection metering valve.
Drawings
FIG. 1 is a schematic diagram of the operation of an underwater chemical injection metering valve provided in accordance with one embodiment of the present invention;
fig. 2a is a front view of the underwater chemical injection metering valve provided in the embodiment of the present invention, and fig. 2b is a perspective view of the apparatus;
FIG. 3a is a cross-sectional view of the underwater chemical injection metering valve provided in accordance with the embodiment of the present invention, and FIG. 3b is a cross-sectional view from another angle of the apparatus;
FIG. 4 is a cross-sectional view of a regulator valve in the subsea chemical injection metering valve provided in accordance with the present embodiment of the invention;
FIG. 5 is a schematic diagram of a mating mounting base adapted for use with the apparatus of the present invention;
FIG. 6 is a schematic view of a mounting sleeve of the mating mounting base of FIG. 5;
FIG. 7 is a schematic view of the valve seat of the mating mounting base of FIG. 5;
FIGS. 8 and 9 are schematic views of the vertical mounting of the underwater chemical injection metering valve provided in this embodiment of the present invention to a mating mounting base;
the respective symbols in the figure are as follows:
1-lifting a ring; 2-torque tool interface; 3-a handle; 4-packaging the shell; 5-pressing the effluent liquid to the female end of the connector; 6-quick plug-in hydraulic joint; 7-electrical connector pin ends; 8-latching; 9-flowing into the hydraulic connector female end; 10-lower end face; 11-an electronic control module; 12-a drive shaft; 13-rotating fixed pins; 14-a first pressure transmitter; 15-a first pressure tapping module; 16-a filter; 17-a second pressure transmitter; 18-a second pressure taking module; 19-a motion director; 20-a motion guide channel; 21-upper end plate; 22-a servo motor; 23-a reduction gearbox; 24-a transmission mechanism; 25-a first linear displacement sensor; 26-a regulating valve; 27-a third pressure transmitter; 28-a fourth pressure transmitter; 29-lower end plate; 30-a second linear displacement sensor; 31-a flow meter; 32-a flow transmitter; 33-an electrical connector; 34-regulating valve actuator; 35-a valve core fixing cavity; 36-a regulator valve stem; 37-a valve core; 38-needle valve seat; 39-a second transmission rod; 40-inflow hydraulic joint male end; 41-electrical terminal hole ends; 42-first guide pin hole; 43-a second guide pin hole; 44-a latching slot; 45-effluent liquid pressure joint male end; 46-mounting the sleeve; 47-a guide groove; 48-valve seat; 49-first transfer lever; 50-a first guide pin; 51-a second guide pin; 52-signal lines; 53-flow path; 54-a supply line; 55-chemical inlet; 56-chemical agent outlet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention are described clearly and completely below, and it is obvious that the described embodiments are some, not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. As used herein, the terms "first," "second," "third," "fourth," and the like do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
Before the specific scheme of the invention is explained, related industry standards are briefly described.
API: the American Petroleum Institute, commonly known as the American Petroleum Institute, is a standards-setting organization. The API standards are developed according to the procedures recognized by the API national standards institute, which ensures that the API standards are recognized by their strict technical standards and third party certification.
API 17F: the standard is named as 'API STANDARD 17F 2017.Standard for subsystem Production Control Systems', and is used for guiding design, manufacture, test, installation and operation of underwater Control system products.
API 17H: the standard is named as 'API STANDARD 17H 2019. Removed Operated Tools and Interfaces on sub Production Systems', and provides relevant design specifications for underwater remote operation Tools and Interfaces.
The metering valve simultaneously adopts the flowmeter and the regulating valve, can simultaneously have flow metering and flow regulating functions, is convenient for the remote Cheng Ce to monitor the injection amount of the underwater chemical agent, and can realize the flow fixed value closed-loop control to ensure the stable and continuous injection of the chemical agent.
The technical scheme of the invention is explained in detail in the following with the accompanying drawings.
As shown in fig. 2a and 2b, the underwater chemical injection metering valve provided by the present invention comprises a packing module including a packing case 4, and an upper end plate 21 and a lower end plate 29 mounted at upper and lower ends of the packing case 4; the handle 3 is arranged on the packaging shell 4, and the lifting ring 1 and the torque tool interface 2 are arranged on the upper end plate 21. The metering valve provided by the invention is simultaneously provided with special valves for chemical agent flow metering, pressure detection and flow regulation, is used for injecting various chemical agents into an underwater oil-gas well, a manifold and an underwater Christmas tree, and can be independently recovered underwater and secondarily installed by a diver or an underwater robot.
As shown in fig. 3a and 3b, the metering valve of the present invention further includes an electronic control module 11, which is mounted on the lower end face of the upper end plate 21, is located in the packaging shell 4, and is electrically connected with the main control station on water; the regulating valve 26 and the flowmeter 31 are both assembled on the upper end face of the lower end plate 29 and are positioned in the packaging shell 4, and a regulating valve actuating mechanism 34, a linear displacement sensor assembly and a pressure transmitter assembly which are electrically connected with the electronic control module 11 are installed on the regulating valve 26; a flow transmitter 32 electrically connected with the electronic control module 11 is mounted on the flowmeter 31; the flow meter 31 is connected to the regulating valve 26 through a pipeline.
Further, as shown in fig. 3a and 3b, the regulating valve actuator 34 includes a servo motor 22, a reduction box 23 and a transmission mechanism 24 connected in series in sequence, the transmission mechanism 24 is connected with a regulating valve stem 36 of the regulating valve 26, and the servo motor 22 is mounted on the lower end surface of the upper end plate 21.
Further, as shown in fig. 3a and 3b, the linear displacement sensor assembly includes a first linear displacement sensor 25 and a second linear displacement sensor 30, the first linear displacement sensor 25 is connected with the regulating valve stem 36 through a first transmission rod 49, and the second linear displacement sensor 30 is connected with the regulating valve stem 36 through a second transmission rod 39. The pressure transmitter assembly comprises a third pressure transmitter 27 and a fourth pressure transmitter 28, mounted at the inlet end and the outlet end of the regulating valve 26, respectively.
Further, as shown in fig. 3a and 3b, the metering valve further includes a filter 16 assembled on the upper end surface of the lower end plate 29 and located inside the package housing 4, a first pressure taking module 15 and a second pressure taking module 18 are respectively installed at an inlet end and an outlet end of the filter 16, a first pressure transmitter 14 is installed on the first pressure taking module 15, and a second pressure transmitter 17 is installed on the second pressure taking module 18.
Further, as shown in fig. 3a and 3b, the metering valve further comprises an installation locking/unlocking transmission module assembled in the packaging shell 4, wherein the installation locking/unlocking transmission module comprises a transmission shaft 12, a rotation fixing pin 13, a movement guide 19 and a latch 8 which are sequentially connected in series, and the transmission shaft 12 is connected with an output end of the servo motor 22. The movement guide 19 is provided with a movement guide groove 20 for regulating the movement stroke of the latch 8. The lower end of the torque tool interface 2 is connected with the transmission shaft 12, and the upper end is used for connecting with a torque tool.
Further, as shown in fig. 3a and 3b, the lower end surface 10 of the lower end plate 29 is provided with an inflow hydraulic connector female end 9 and an outflow hydraulic connector female end 5, which respectively integrate a chemical inflow connection port and a chemical outflow connection port with an inflow hydraulic connector male end 40 and an outflow hydraulic connector male end 45 mounted on a valve seat 48 of a mating mounting base.
The lower end face 10 of the lower end plate 29 is further provided with an electrical connector pin end 7 and a guide pin, the electrical connector pin end 7 is connected with an electrical connector hole end 41 on the valve seat 48, and the guide pin is connected with a guide pin hole on the valve seat 48.
As shown in fig. 6 and 7, the second aspect of the present invention provides an operation method of the metering valve, which comprises the following specific processes:
the underwater vertical installation process comprises the following steps: the underwater chemical injection metering valve needs to be vertically installed on a matched installation base matched with the underwater chemical injection metering valve, as shown in fig. 7; in the installation process, a diver/underwater robot grabs the lifting ring 1 or the handle 3 to convey the underwater chemical injection metering valve to the upper part of a matched installation foundation, the underwater chemical injection metering valve is placed in the installation sleeve 46, the lifting ring 1 is rotated to align the handle 3 with the guide groove 47 on the installation sleeve 46, the underwater chemical injection metering valve is lowered, under the guide of the guide groove 47, the first guide pin 50 and the second guide pin 51 on the lower end plate 29 penetrate through the corresponding first guide pin hole 42 and the second guide pin hole 43 on the valve seat 48, and the latch 8 penetrates through the latch groove 44 on the valve seat 48 to realize primary alignment; the diver/underwater robot connects a torque tool to the torque tool interface 2, the torque tool is rotationally operated to drive the transmission shaft 12 to rotate, the latch 8 moves under the regulation of the movement guide groove 20, the latch 8 rotates to be locked with the latch groove 44 in a staggered mode, the diver/underwater robot continues to rotate the torque tool, the latch 8 changes the rotation motion into linear backward pulling motion under the restriction of the movement guide groove 20, in the process, the female end 9 of the inflow hydraulic connector and the female end 5 of the outflow hydraulic connector are respectively in butt joint with the male end 40 of the inflow hydraulic connector and the male end 45 of the outflow hydraulic connector to realize secondary guidance, the needle end 7 of the underwater electric connector and the hole end 41 of the electric connector are in butt joint to realize tertiary guidance, and the diver/underwater robot takes out the torque tool to complete installation.
When the underwater chemical agent injection metering valve needs maintenance or breaks down and needs to be repaired, the recovery operation is carried out, and the recovery process is opposite to the installation process. Firstly, the diver/underwater robot dives to an installation position, a torque tool is connected to a torque tool interface 2, the torque tool is rotated reversely to enable underwater chemical injection metering valves to move linearly, at the moment, an inflow hydraulic pressure joint female end 9, an outflow hydraulic pressure joint female end 5 and an electric joint pin end 7 on a lower end plate 29 are separated from an inflow hydraulic pressure joint male end 40, an outflow hydraulic pressure joint male end 45 and an electric joint hole end 41 which correspond to a valve seat 48 respectively, self-sealing function is achieved, the torque tool is rotated continuously reversely, a latch 8 is parallel to a latch groove 44 in a rotating mode, and the diver/underwater robot enables the underwater chemical injection metering valves to be recovered to a water platform through lifting a lifting ring 1 to be repaired or maintained and then is installed again in a downward mode.
The flow metering method and the flow regulation of the metering valve are realized as follows: as shown in fig. 2 and 3, the chemical agent enters the underwater chemical agent injection metering valve from the inflow hydraulic joint female end 9, flows through the filter 16 along the pipeline, then flows through the flowmeter 31 for flow metering, the flow signal is uploaded to the electronic control module 11, and the flow is regulated through the regulating valve 26, at this time, the electronic control module 11 receives the flow control signal of the overwater main control station and downloads the control signal to the servo motor 22, the servo motor 22 drives the reduction gearbox 23 and the transmission mechanism 24 to move, and then drives the valve core 37 to move to change the throttle area of the regulating valve 26, so as to achieve the purpose of flow regulation, and finally the chemical agent flows out of the underwater chemical agent injection metering valve from the outflow hydraulic joint female end 5. The flow meter 31 needs to meet accurate metering at small flows, limited by the maximum and minimum flow rates of injection; according to the invention, while the flow of the chemical agent is metered by adopting the flow meter 31, two high-precision pressure transmitters (a third pressure transmitter 27 and a fourth pressure transmitter 28) are respectively arranged on the upstream and downstream of the regulating valve 26, two linear displacement sensors (a first linear displacement sensor 25 and a second linear displacement sensor 30) are arranged in the positive and negative parallel of the regulating valve rod 36 to offset the dead zone of the displacement sensors, and the flow of the chemical agent flowing through the regulating valve is calculated by the two pressure values and the valve core displacement, so that two flow metering methods are realized.
The working principle of the underwater chemical injection metering valve provided by the invention is shown in figure 1. The chemical agent enters the underwater chemical agent injection metering valve from a chemical agent inflow port, flows through the filter 16 along a pipeline to improve the cleanliness of the chemical agent injection metering valve, 2 pressure transmitters (a first pressure transmitter 14 and a second pressure transmitter 17 which are arranged on the first pressure taking module 15 and the second pressure taking module 18) are arranged at two ends of the filter and used for monitoring whether the filter 16 is blocked or not, the chemical agent flows through the flowmeter 31 to carry out flow metering, flow signals are uploaded to the electronic control module 11, flow regulation is carried out through the regulating valve 26, and finally the chemical agent enters the underground or a manifold from a chemical agent outflow port.
The flow regulation process comprises the following steps: the electronic control module 11 receives the flow control signal of the overwater main control station and transmits the control signal to the regulating valve actuating mechanism 34, and the regulating valve actuating mechanism 34 drives the valve core 37 to move according to the control signal, so that the throttling area of the regulating valve 26 is changed to achieve the purpose of flow regulation. 2 pressure transmitters (a third pressure transmitter 27 and a fourth pressure transmitter 28) are respectively arranged on the upstream and the downstream of the regulating valve 26 to upload pressure signals to the electronic control module 11, linear displacement sensors (a first linear displacement sensor 25 and a second linear displacement sensor 30) are arranged on a valve rod 36 of the regulating valve to upload displacement signals of a valve core 37 to the electronic control module 11, the configured 2 linear displacement sensors need to be arranged in a positive and negative parallel mode to offset dead zones of the sensors, the chemical agent flow passing through the regulating valve 26 is calculated through the uploaded pressure and the displacement of the valve core 37, and two flow metering modes are formed by the chemical agent flow and the flow output by the flow meter. The electronic control module 11 and the underwater control module need communication and power supply, and the communication has the characteristics of large data volume and high real-time requirement, so that a digital communication mode is adopted for communication; and the electronic control module 11 communicates with internal devices such as a pressure transmitter, a flowmeter 31, a regulating valve actuator 34 and a linear displacement sensor, obtains the working state of the underwater chemical injection metering valve, and simultaneously sends data to the underwater main control station through the underwater control module and receives a control instruction of the main control station. According to the definition requirements of API 17F standard on SIIS standard of an underwater instrument interface, an electronic control module 11 provides a standard SIIS interface with a 4-20mA standard analog quantity interface and a CANopen-based communication interface, and each functional board card adopts dual-redundancy configuration; according to the API 17F standard, the power supply voltage is required to be 24VDC, the power card needs to consider the board card power supply and the servo motor power supply at the same time, the power card has the capacity of bearing the instant large current impact, and the board cards are communicated through a backboard bus and packaged.
The chemical agent injection metering valve designed by the invention realizes integration of two functions of flow metering and flow regulation by adopting a mode of tightly connecting and integrating the flow meter 31 and the regulating valve 26 in series, and realizes two chemical agent flow metering methods by using an auxiliary flow metering method to calculate the flow of the regulating valve 26 while metering the chemical agent by using the flow meter 31. The metering precision of the metering valve is improved by 10 percent, and the injection time of chemical agents is shortened by 20 percent.
The invention meets the relevant requirements of the API 17F standard, designs an interface adopting the API standard to improve the universality and operability of the underwater chemical agent injection metering valve, and simultaneously adopts the interface standard (SIIS) of an underwater instrument specified by the API 17F standard as the communication mode of the chemical agent metering valve. The invention can accurately measure the injection amount of the chemical agent and accurately adjust the injection flow of the chemical agent according to the injection requirement without adding other flow measuring valves or adjusting valves.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but 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 of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. An underwater vertically mounted chemical injection metering valve comprising:
the packaging module comprises a packaging shell (4), and an upper end plate (21) and a lower end plate (29) which are assembled at the upper end and the lower end of the packaging shell (4);
the electronic control module (11) is assembled on the lower end face of the upper end plate (21), is positioned in the packaging shell (4), and is electrically connected with the overwater main control station;
the regulating valve (26) is assembled on the upper end face of the lower end plate (29) and is positioned in the packaging shell (4), and a regulating valve actuating mechanism (34), a linear displacement sensor assembly and a pressure transmitter assembly which are electrically connected with the electronic control module (11) are installed on the regulating valve (26);
the flowmeter (31) is assembled on the upper end face of the lower end plate (29) and is positioned in the packaging shell (4), and a flow transmitter (32) electrically connected with the electronic control module (11) is mounted on the flowmeter (31);
the flow meter (31) is connected with the regulating valve (26) through a pipeline;
the linear displacement sensor assembly comprises a first linear displacement sensor (25) and a second linear displacement sensor (30), and the first linear displacement sensor (25) and the second linear displacement sensor (30) are installed on a valve rod of the regulating valve (26) in a positive and negative parallel mode;
the pressure transmitter assembly comprises a third pressure transmitter (27) and a fourth pressure transmitter (28) which are respectively arranged at the inlet end and the outlet end of the regulating valve (26);
the pressure measuring device is characterized by further comprising a filter (16) which is assembled on the upper end face of the lower end plate (29) and is positioned in the packaging shell (4), and a first pressure measuring module (15) and a second pressure measuring module (18) are respectively installed at the inlet end and the outlet end of the filter (16).
2. Chemical injection metering valve according to claim 1, characterized in that the regulating valve actuator (34) comprises a servo motor (22), a reduction gearbox (23) and a transmission mechanism (24) connected in series in sequence, the transmission mechanism (24) being connected with a regulating valve stem (36) of the regulating valve (26), the servo motor (22) being mounted on the lower end face of the upper end plate (21).
3. Chemical injection metering valve according to claim 2 characterized in that the first linear displacement sensor (25) is connected to the regulating valve stem (36) by a first transmission rod (49) and the second linear displacement sensor (30) is connected to the regulating valve stem (36) by a second transmission rod (39).
4. Chemical injection metering valve according to claim 2 characterized by further comprising a mounting locking/unlocking transmission module fitted inside the packaging housing (4), the mounting locking/unlocking transmission module comprising a transmission shaft (12), a rotation fixing pin (13), a movement guide (19) and a latch (8) connected in series one after the other.
5. Metering valve for the injection of chemical agents according to claim 4, characterized in that the movement guide (19) is provided with a movement guide (20) for limiting the movement stroke of the latch (8).
6. Chemical injection metering valve according to claim 4, characterized in that a torque tool interface (2) is mounted on the upper end face of the upper end plate (21), the torque tool interface (2) being connected at its lower end to the drive shaft (12) and at its upper end for connection to a torque tool.
7. Chemical injection metering valve according to claim 1, characterized in that the lower end face (10) of the lower end plate (29) is fitted with an inflow hydraulic connector female end (9) and an outflow hydraulic connector female end (5) which respectively integrate a chemical inflow connection and a chemical outflow connection with an inflow hydraulic connector male end (40) and an outflow hydraulic connector male end (45) fitted on a valve seat (48) of a mating mounting base;
and the lower end surface (10) of the lower end plate (29) is also provided with an electric connector pin end (7) and a guide pin, the electric connector pin end (7) is connected with an electric connector hole end (41) on the valve seat (48), and the guide pin is connected with a guide pin hole on the valve seat (48).
8. A method of mounting a chemical injection metering valve according to any one of claims 1 to 7, comprising the steps of:
a diver or an underwater robot grabs a lifting ring (1) or a handle (3) on the chemical injection metering valve to convey the lifting ring or the handle (3) above a matched installation foundation, then the lifting ring is put into a mounting sleeve (46), the lifting ring (1) is rotated to align the handle (3) with a guide groove (47), the guide groove (47) is arranged on the mounting sleeve (46), the underwater chemical injection metering valve is lowered, a first guide pin (50) and a second guide pin (51) on the lower end plate (29) penetrate through a corresponding first guide pin hole (42) and a corresponding second guide pin hole (43) on the valve seat (48) under the guidance of the guide groove (47), and a latch (8) penetrates through a latch groove (44) to realize primary alignment; a diver or an underwater robot connects a torque tool to the torque tool interface (2), the torque tool is rotationally operated to drive the transmission shaft (12) to rotate, a latch (8) moves under the regulation of the movement guide groove (20), the latch (8) rotates and is locked with the latch groove (44) in a staggered mode, the torque tool is continuously rotated, the latch (8) is changed from rotating motion into linear backward pulling motion under the restriction of the movement guide groove (20), in the process, the inflow hydraulic pressure joint female end (9) and the outflow hydraulic pressure joint female end (5) are respectively connected with the corresponding inflow hydraulic pressure joint male end (40) and the corresponding outflow hydraulic pressure joint male end (45) to realize secondary guidance, the electric joint pin end (7) is connected with the electric joint hole end (41) to realize tertiary guidance, and the diver or the underwater robot takes out the torque tool to finish installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210528010.7A CN114893575B (en) | 2022-05-16 | 2022-05-16 | Underwater vertically-installed chemical injection metering valve and installation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210528010.7A CN114893575B (en) | 2022-05-16 | 2022-05-16 | Underwater vertically-installed chemical injection metering valve and installation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114893575A CN114893575A (en) | 2022-08-12 |
| CN114893575B true CN114893575B (en) | 2023-03-21 |
Family
ID=82724877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210528010.7A Active CN114893575B (en) | 2022-05-16 | 2022-05-16 | Underwater vertically-installed chemical injection metering valve and installation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114893575B (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO322680B1 (en) * | 2004-12-22 | 2006-11-27 | Fmc Kongsberg Subsea As | System for controlling a valve |
| EP2111496B1 (en) * | 2007-02-01 | 2018-07-25 | Cameron International Corporation | Chemical-injection management system |
| CN107035335A (en) * | 2008-12-05 | 2017-08-11 | 卡梅伦国际有限公司 | Sub-sea chemical injection metering valve |
| US9188499B2 (en) * | 2011-10-04 | 2015-11-17 | Onesubsea Ip Uk Limited | Subsea retrievable pressure sensor |
| CN105782481B (en) * | 2016-04-01 | 2018-08-28 | 同济大学 | A kind of underwater fluid acquisition valve |
| CN106402471A (en) * | 2016-05-31 | 2017-02-15 | 美钻能源科技(上海)有限公司 | Underwater valve switch position indicator |
| CN108086948B (en) * | 2017-11-30 | 2019-12-17 | 江苏科技大学 | Locking device of underwater valve operating tool |
| CN111271480A (en) * | 2020-04-21 | 2020-06-12 | 苏州道森钻采设备股份有限公司 | Underwater chemical agent injection valve |
| CN212273089U (en) * | 2020-04-21 | 2021-01-01 | 苏州道森钻采设备股份有限公司 | Underwater chemical agent injection valve |
-
2022
- 2022-05-16 CN CN202210528010.7A patent/CN114893575B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN114893575A (en) | 2022-08-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8997876B2 (en) | Retrievable flow module unit | |
| US9752424B2 (en) | Fluid injection system | |
| CN109577932A (en) | A kind of water injection well remotely monitors and automatic control system and method | |
| US20200300055A1 (en) | Auxiliary equipment provision | |
| CN114893575B (en) | Underwater vertically-installed chemical injection metering valve and installation method thereof | |
| CN109209269B (en) | Wellhead pressure control system and method for well shaft pressure balance well cementation | |
| CN114086905A (en) | Underwater dry type wellhead cabin suitable for offshore oil field and installation method | |
| US20110030964A1 (en) | Control Module With Dual Ball Valve Assemblies | |
| York et al. | Subsea Smart Electric Control Unit for Building Smarter and Cheaper Subsea Hardware | |
| RU2268988C2 (en) | All-purpose packer for tubing testing and surveying | |
| CN110965971B (en) | Annular simulation device for water injection well | |
| CN109751039B (en) | Underground oil testing electronic control hydraulic modular test system | |
| WO2021003247A1 (en) | Flow measuring and monitoring apparatus for a subsea tree | |
| CN217602651U (en) | Layered testing system for oil production and water content of oil well | |
| CN203640728U (en) | Water hydraulic modular wireline formation tester | |
| CN115680651B (en) | Multi-chamber cable-controlled underground electric sampling tool | |
| CN117905739A (en) | Hydraulic control device for underwater well sealing and control system thereof | |
| Baggs et al. | Troll Pilot control system: advanced control system for a subsea separator | |
| US20220373118A1 (en) | Connector engagement system | |
| CN117072140A (en) | Marine fine pressure control drilling device and pressure control method | |
| CN103790578A (en) | Water hydraulic modular wireline formation tester | |
| WO2015102763A2 (en) | Inline retrievable system | |
| Yang et al. | DETECTION SYSTEM DESIGN OF SUBSEA TREE CONTROLLER | |
| Baggs et al. | Troll Pilot control system for a subsea separator | |
| Osborne | Initial Experience With an Underwater Manifold Centre |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |