Safety state monitoring device for in-service marine flexible composite hose
By designing a monitoring device including the original pipeline and side branch pipeline, setting up a shutdown valve, steel pipe section, hose section and corrosion detection device, the problem of lack of effective monitoring methods for marine flexible composite hoses is solved, and effective monitoring of the safety status of the hose and guaranteeing long-term operation of the oil field is achieved.
Patent Information
- Application Number
- CN202421712605.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-05-20
- Estimated Expiration
- 2034-07-19
AI Technical Summary
Marine flexible composite hoses lack effective detection/monitoring methods in operation and maintenance, and cannot take targeted maintenance measures. Once a leakage occurs, it will cause huge losses to the marine environment.
A safety status monitoring device for in-service marine flexible composite hose is designed. Through the combination of the original pipeline and the side branch pipeline, a second shutdown valve, a steel pipe section, a hose section, a corrosion detection device and a third shutdown valve are arranged to realize monitoring of the inner cavity and annulus of the hose section.
The safety status of the in-service marine flexible composite hose is effectively monitored, ensuring long-term operation of the oil field, and avoiding potential leakage and environmental losses.
Smart Images
Figure CN222887339U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline monitoring, and particularly relates to a safety state monitoring device for an in-service marine flexible composite hose. Background Art
[0002] With the progress of deep-sea oil and gas development, as a new type of pipeline for gathering and transporting oil and gas, the composite hose has the characteristics of corrosion resistance, high pressure resistance, flexibility, no counterweight, easy installation, etc., and has been increasingly widely used in deep-water oil and gas development. However, the main problem existing in the operation and maintenance of the current marine flexible composite hose is the lack of effective detection / monitoring means, and it is impossible to take targeted maintenance measures. Once a leakage occurs, it will cause huge losses to the marine environment. Therefore, it is urgent to master the solution to the safety state of the marine flexible composite hose. Content of the Utility Model
[0003] The purpose of the utility model is to provide a safety state monitoring device for an in-service marine flexible composite hose, including an original pipeline and a bypass pipeline. The bypass pipeline is composed of a second shut-off valve, a steel pipe section, a hose section, a corrosion detection device and a third shut-off valve connected in sequence from the inlet end to the outlet end, which can effectively monitor the safety state of the in-service marine flexible composite hose and ensure the long-term operation of the oilfield.
[0004] To achieve the above purpose, the utility model adopts the following technical solutions, including: a first three-way joint and a second three-way joint are respectively arranged at the inlet end and the outlet end of the original pipeline. On the original pipeline, a first shut-off valve is arranged between the first three-way joint and the second three-way joint; the bypass pipeline is arranged in parallel on one side of the original pipeline, and the inlet end and the outlet end of the bypass pipeline are respectively connected to the first three-way joint and the second three-way joint; the bypass pipeline is composed of a second shut-off valve, a steel pipe section, a hose section, a corrosion detection device and a third shut-off valve connected in sequence from the inlet end to the outlet end; a medium sampling port is arranged at the front end of the hose section, and the medium sampling port is communicated with the inner cavity of the hose section for monitoring the conveying medium in the inner cavity of the hose section; an annulus sampling port is arranged at the rear end of the hose section, and the annulus sampling port is communicated with the annulus of the hose section for monitoring the medium in the annulus of the hose section.
[0005] Preferably, the corrosion detection device includes:
[0006] A third three-way joint, whose first interface and second interface are respectively connected to the hose section and the third shut-off valve;
[0007] A blind plate, which is detachably arranged at the lower end of the third interface for opening or closing the third interface;
[0008] A coupon cage, which is arranged in the third interface, and a detachable corrosion coupon and aging coupon are arranged on the coupon cage.
[0009] Preferably, the inlet end of the branch pipeline is connected to the first three-way joint through a first elbow and a first branch pipe in sequence; the outlet end of the branch pipeline is connected to the second three-way joint through a second elbow and a second branch pipe in sequence.
[0010] Preferably, the second shut-off valve is connected to the first elbow through a flange; the second shut-off valve is connected to the steel pipe section through a flange; the steel pipe section is connected to the hose section through a flange; the hose section is connected to the first interface of the third three-way joint through a flange; the second interface of the third three-way joint is connected to the third shut-off valve through a flange; the third shut-off valve is connected to the second elbow through a flange.
[0011] Preferably, the coupon cage includes: a cage body, on the upper end of which there are respectively a corrosion coupon slot and an aging coupon slot; in the corrosion coupon slot and the aging coupon slot, there are respectively reed pieces for fixing; a pair of T-shaped sliders, which are arranged on the lower end surface of the cage body and are adapted to a pair of T-shaped chutes arranged on the inner end surface of the blind plate for connecting the coupon cage with the blind plate.
[0012] The beneficial effects of the present utility model are as follows: the original pipeline and the branch pipeline, the branch pipeline is composed of a second shut-off valve, a steel pipe section, a hose section, a corrosion detection device and a third shut-off valve connected in sequence from the inlet end to the outlet end, which can effectively monitor the safety state of the in-service marine flexible composite hose and ensure the long-term operation of the oilfield. Description of the Drawings
[0013] Figure 1 It is a schematic diagram of a device for monitoring the safety state of an in-service marine flexible composite hose according to the present utility model.
[0014] Figure 2 It is a schematic diagram of the corrosion detection device in the present utility model.
[0015] Figure 3 It is a schematic diagram of the coupon cage in the present utility model. Detailed Description of the Preferred Embodiment
[0016] The following further detailed description of the utility model is provided in conjunction with the drawings, so that those skilled in the art can implement it with reference to the description in the specification.
[0017] It should be understood that the terms such as "having", "including" and "comprising" used herein do not exclude the presence or addition of one or other elements or their combinations.
[0018] As Figures 1-3 shown, a device 1 for monitoring the safety state of an in-service marine flexible composite hose according to the present utility model includes:
[0019] The inlet end and the outlet end of the original pipeline 110 are respectively provided with a first three-way joint 111 and a second three-way joint 112. On the original pipeline, a first shut-off valve 113 is provided between the first three-way joint 111 and the second three-way joint 112; a bypass pipeline 120 is arranged in parallel on one side of the original pipeline 110. The inlet end and the outlet end of the bypass pipeline 120 are respectively connected to the first three-way joint 111 and the second three-way joint 112; the bypass pipeline 120 is provided with a second shut-off valve 121, a steel pipe section 130, a hose section 140, a corrosion detection device 150 and a third shut-off valve 122 connected in sequence from the inlet end to the outlet end; a medium sampling port 141 is provided at the front end of the hose section 140, and the medium sampling port 141 is communicated with the inner cavity of the hose section 140 for monitoring the conveying medium in the inner cavity of the hose section; an annulus sampling port 142 is provided at the rear end of the hose section 140, and the annulus sampling port 142 is communicated with the annulus of the hose section 140 for monitoring the medium in the annulus of the hose section 140.
[0020] During normal operation, the first shut-off valve 113 is closed, the second shut-off valve 121 and the third shut-off valve 122 are opened, and the conveying medium passes through the bypass pipeline 120. When taking coupon samples, the first shut-off valve 113 is opened, the second shut-off valve 121 and the third shut-off valve 122 are closed, the pressure is relieved through the medium sampling port 141, the blind plate 152 is opened, and the coupon cage 153 is taken out, so that the corrosion coupons 154 and aging coupons 155 can be sampled without affecting the medium transportation; at the same time, through the detection of the annulus sampling port 142, the integrity of the armor layer and the cladding layer is evaluated.
[0021] In another embodiment, the corrosion detection device 150 includes: a third three-way joint 151, whose first interface 151a and second interface 151b are respectively connected to the hose section 140 and the third shut-off valve 122; a blind plate 152, which is detachably arranged at the lower end of the third interface 151c for opening or closing the third interface 151c; a coupon cage 153, which is arranged in the third interface 151c, and detachable corrosion coupons 154 and aging coupons 155 are arranged on the coupon cage.
[0022] In another embodiment, the inlet end of the bypass pipeline 120 is connected to the first three-way joint 111 through a first elbow 161 and a first branch pipe 162 in sequence; the outlet end of the bypass pipeline 120 is connected to the second three-way joint 112 through a second elbow 163 and a second branch pipe 164 in sequence.
[0023] In another embodiment, the second shut-off valve 121 is connected to the first elbow 161 by a flange; the second shut-off valve 121 is connected to the steel pipe section 130 by a flange; the steel pipe section 130 is connected to the hose section 140 by a flange; the hose section 140 is connected to the first interface 151a of the third three-way joint 151 by a flange; the second interface 151b of the third three-way joint 151 is connected to the third shut-off valve 122 by a flange; the third shut-off valve 122 is connected to the second elbow 163 by a flange.
[0024] In another embodiment, the coupon cage 153 includes: a cage body, with a corrosion coupon slot 153a and an aging coupon slot 153b provided at its upper end respectively; spring pieces 153c for fixing are respectively provided in the corrosion coupon slot and the aging coupon slot; a pair of T-shaped sliders 153d, which are arranged on the lower end face of the cage body and are adapted to a pair of T-shaped chutes 152a provided on the inner end face of the blind plate 152 for connecting the coupon cage 153 to the blind plate 152.
[0025] In summary, for the in-service marine flexible composite hose safety status monitoring device of the present utility model, a main pipeline 110 and a bypass pipeline 120 are provided. The bypass pipeline is composed of a second shut-off valve 121, a steel pipe section 130, a hose section 140, a corrosion detection device 150, and a third shut-off valve 122 connected in sequence from the inlet end to the outlet end, which can effectively monitor the safety status of the in-service marine flexible composite hose and ensure the long-term operation of the oilfield.
[0026] Although the embodiments of the present utility model have been disclosed as above, it is not limited to only the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present utility model. For those familiar with the field, additional modifications can be easily achieved. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present utility model is not limited to the specific details and the illustrated examples here.
Claims
1. A safety status monitoring device for an in-service marine flexible composite hose, characterized in that: include: The inlet and outlet ends of the original pipeline are respectively provided with a first three-way joint and a second three-way joint, and on the original pipeline, a first shut-off valve is provided between the first three-way joint and the second three-way joint; a bypass pipeline is arranged in parallel on one side of the original pipeline, and the inlet and outlet ends of the bypass pipeline are respectively connected to the first three-way joint and the second three-way joint; the bypass pipeline is composed of a second shut-off valve, a steel pipe section, a hose section, a corrosion detection device and a third shut-off valve connected in sequence from the inlet end to the outlet end; a medium sampling port is provided at the front end of the hose section, and the medium sampling port is connected to the inner cavity of the hose section for monitoring the conveying medium in the inner cavity of the hose section; an annulus sampling port is provided at the rear end of the hose section, and the annulus sampling port is connected to the annulus of the hose section for monitoring the medium in the annulus of the hose section.
2. The in-service marine flexible composite hose safety status monitoring device according to claim 1 is characterized in that: The corrosion detection device comprises: A third three-way connector, wherein the first interface and the second interface are connected to the hose section and the third shut-off valve respectively; A blind plate, which is detachably arranged at the lower end of the third interface and is used to open or close the third interface; A hanging plate cage is arranged in the third interface, and detachable corrosion hanging plates and aging hanging plates are arranged on the hanging plate cage.
3. The in-service marine flexible composite hose safety status monitoring device according to claim 2 is characterized in that: The inlet end of the bypass pipeline is connected to the first three-way joint through a first elbow and a first branch pipe in sequence; the outlet end of the bypass pipeline is connected to the second three-way joint through a second elbow and a second branch pipe in sequence.
4. The in-service marine flexible composite hose safety status monitoring device according to claim 3 is characterized by: The second shut-off valve is connected to the first elbow via a flange; the second shut-off valve is connected to the steel pipe section via a flange; the steel pipe section is connected to the hose section via a flange; the hose section is connected to the first interface of the third three-way joint via a flange; the second interface of the third three-way joint is connected to the third shut-off valve via a flange; the third shut-off valve is connected to the second elbow via a flange.
5. The in-service marine flexible composite hose safety status monitoring device according to claim 3 is characterized in that: The hanging sheet cage comprises: The cage body has a corrosion hanging piece slot and an aging hanging piece slot at its upper end; and springs for fixing are respectively arranged in the corrosion hanging piece slot and the aging hanging piece slot; A pair of T-shaped sliding blocks are arranged on the lower end surface of the cage body and are matched with a pair of T-shaped sliding grooves arranged on the inner end surface of the blind plate, so as to connect the hanging plate cage with the blind plate.