CN204756457U - Ocean hose monitoring devices on throne - Google Patents

Abstract

The utility model relates to a marine hose in-position monitoring device, which includes a bypass hose, a flat pipe section of the marine pipe, a tee, and an elbow, and is connected to the steel pipe through the sea pipe boarding/leaving end pipeline on the lower deck of the platform. Parallel bypass hoses, since the internal media of the bypass hoses and the flat submarine pipes are the same, through the online monitoring of the bypass hoses, it is possible to speculate on the status of the flat pipes on the seabed, and make predictions about possible risks. Early warning, changing passive maintenance into active prevention in advance; by connecting bypass hoses, the impact of monitoring operations on the platform’s production process and crude oil process pipelines and the shutdown caused by monitoring are avoided; by installing sensors and The sampling point realizes the state monitoring of the hose ring area, avoiding the situation that the ring area monitoring must rely on the conduction between the flexible riser and the flexible flat pipe ring area, which is more in line with the current situation of the combination of the flexible flat pipe and the steel riser; The monitoring operation is carried out without pressure, which improves the safety of the operation.

Description

Marine hose presence monitoring device

technical field

The utility model relates to an in-position monitoring device for pipelines, in particular to an in-position monitoring device for marine hoses.

Background technique

At present, the domestic on-site monitoring of the underwater part of the submarine hose is a blind spot, and the monitoring technology of the steel pipe can only be applied, and the corrosion/fouling performance of the medium is installed on the starting and receiving ends of the sea pipe on the offshore oil production platform. However, due to the special multi-layer composite structure of the hose, the coupon can only reflect to a certain extent the state of the metal material that the hose is in direct contact with the medium at that time; the monitoring of the overall structural integrity of the hose can only rely on pressure , through smart balls, etc., the pipeline needs to be stopped and operated under pressure during monitoring, and this monitoring technology cannot realize the monitoring of the hose ring area.

Utility model content

The main purpose of the utility model is to overcome the shortcomings of the prior art, and to provide a marine hose in-position monitoring device, which is connected to a bypass parallel to the steel pipe at the side of the marine pipe boarding/leaving end pipeline on the lower deck of the platform. Hose, since the internal media of the bypass hose and the submarine flat pipe are the same, through the online monitoring of the bypass hose, it is possible to speculate on the status of the submarine flat pipe, give early warning of possible risks, and become passive The maintenance is proactive and preventive; by connecting the bypass hose, the impact of the monitoring operation on the production process of the platform and the crude oil process pipeline and the shutdown caused by monitoring are avoided; by installing sensors and sampling points on the bypass hose, the For the condition monitoring of the annular area of the hose, it avoids the situation that the monitoring of the annular area must rely on the conduction between the flexible riser and the flexible flat pipe annular area, which is more in line with the current situation of the combination of the flexible flat pipe and the steel riser; Under the condition of monitoring operation, the safety of operation is improved.

The purpose of this utility model is achieved by the following technical solutions:

The marine hose in-position monitoring device includes a bypass hose, a flat pipe section of the sea pipe, a tee, an elbow, a valve, and a display, and is characterized in that the inlet and outlet ends of the flat pipe section of the sea pipe are respectively fixed with one of the three The branch interfaces of the tee are respectively connected to the elbows through steel pipes, and the bypass hose is connected between the two elbows, and the inlet and outlet ends of the bypass hose are respectively connected to the Hose joint I and hose joint II are connected, the internal pressure sealing layer of the bypass hose is provided with aging coupons, temperature sensors and pressure sensors are embedded in the armor layer of the bypass hose, and the soft A gas concentration sensor and a transmission wire outlet conduit are arranged inside the pipe joint II, and an annular area medium analysis port is arranged outside the hose joint II, and the temperature sensor, pressure sensor, and gas concentration sensor are connected to the display through a transmission wire.

The valve is a two-way valve or a three-way valve. If the two-way valve is used, it needs to be connected between the flat pipe section of the sea pipe and the three-way, and between the bypass hose and the branch of the three-way. A pair of said two-way valves are respectively arranged between the interfaces; if said three-way valves are used, one said three-way valve shall be respectively arranged at the intersection of two said three-way valves.

The necked part of the hose joint I is provided with an internal medium analysis port, and the necked part of the hose joint II is provided with an ultrasonic thickness measuring point and a corrosion probe base.

Beneficial effects of the utility model: the utility model adopts the above-mentioned technical scheme, and the bypass hose parallel to the steel pipe is connected to the side of the sea pipe boarding/leaving platform end pipeline on the lower deck of the platform. Although the internal media of the two are the same, through the online monitoring of the bypass hose, it is possible to infer the status of the flat submarine pipe, give an early warning of possible risks, and change passive maintenance into active prevention in advance; by connecting the bypass hose The flexible hose avoids the influence of the monitoring operation on the production process of the platform and the crude oil process pipeline and the stoppage caused by monitoring; by installing sensors and sampling points on the bypass hose, the state monitoring of the annular area of the hose is realized, and the annular area of the hose is avoided. The field monitoring must rely on the conduction of the flexible riser and the flexible flat pipe annular region, which is more in line with the current situation of the combination of the flexible flat pipe and the steel riser; the monitoring operation is carried out without pressure, which improves the operating efficiency. safety.

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Description of drawings:

Fig. 1 is a schematic diagram of the marine hose in-position monitoring device of the present invention;

Fig. 2 is a schematic diagram of a temperature and pressure sensor of the present invention;

Fig. 3 is a schematic diagram of a gas sensor of the present invention;

Fig. 4 is a schematic diagram of an aging coupon of the present invention.

Explanation of main symbols in the figure:

1—tee; 2—flange; 3—two-way valve; 4—flat pipe section of sea pipe; 5—steel pipe; 6—elbow; 7—internal medium analysis port; 8—hose connector Ⅰ; 9—hose Joint II; 10—bypass hose; 11—aging coupon; 12—sensor signal transmission wire; 13—temperature sensor; 14—pressure sensor; 15—ultrasonic thickness measurement point; 16—annular medium analysis port; 17 —gas concentration sensor; 18—signal transmission wire outlet conduit; 19—corrosion probe base; 20—display; 21—internal pressure sealing layer; 22—armouring layer; 23—outer cladding layer.

Detailed ways

Below in conjunction with accompanying drawing and example, the utility model is described in detail.

As shown in Figures 1-4, the marine hose in-position monitoring device of the present invention includes a bypass hose 10, a flat pipe section 4 of the sea pipe, a tee 1, an elbow 6, a two-way valve 3, and a flat pipe section 4 of the sea pipe. The inlet end and the outlet end are respectively connected with a tee 1 through the flange 2, and a pair of two-way valves 3 and three-way valves 3 are respectively arranged between the flat pipe section 4 of the sea pipe and the tee 1, and between the bypass hose 10 and the tee 1. The branch interface of Tong 1 is respectively connected to the elbow 6 through the steel pipe 5, and the bypass hose 10 is connected between the two elbows 6. Ⅱ9 connection, the internal pressure sealing layer 21 of the bypass hose 10 is equipped with an aging coupon 11, and the armor layer 22 of the bypass hose 10 is embedded with a temperature sensor 13 and a pressure sensor 14, and a gas concentration sensor is installed inside the hose joint Ⅱ9 17. The transmission wire outlet conduit 18, the hose joint II9 is externally installed with an annular area medium analysis port 16, the transmission wires of the temperature sensor 13, the pressure sensor 14, and the gas concentration sensor 17 are drawn out from the transmission wire outlet conduit 18, and are connected to the display 20 in the control room connected.

The necking part of the hose joint I8 is provided with an internal medium analysis port 7, and the necking part of the hose joint II9 is provided with an ultrasonic thickness measuring point 15 and a corrosion probe base 19, through which the ultrasonic thickness measuring point 15 is used for the two hoses The internal corrosion of joints is monitored.

In this embodiment, the armor layer 22 of the bypass hose 10 is located between the internal pressure sealing layer 21 and the outer cladding layer 23 of the bypass hose 10 .

When the utility model performs on-site monitoring, the two-way valve 3 at both ends of the flat pipe section 4 of the sea pipe is closed, and the two-way valve 3 at both ends of the bypass hose 10 is opened, so that the medium circulates in the bypass hose 10, and the display 20 reads in real time Get the data of temperature sensor 13, pressure sensor 14, gas concentration sensor 17, temperature sensor 13, pressure sensor 14, gas concentration sensor 17 have realized on-site monitoring, the data transmitted by temperature sensor 13 can analyze armor layer 22 external tundish The aging of the cladding, the cracking and corrosion of the armor layer 22 can be analyzed through the data transmitted by the pressure sensor 14 and the gas concentration sensor 17, the internal medium of the bypass hose 10 is detected through the internal medium analysis port 7, and the The medium analysis port 16 detects the medium components in the annular area of the bypass hose 10 .

When detecting the corrosion of the metal skeleton layer of the hose and the aging of the internal pressure sealing layer 21, open the two-way valve 3 at both ends of the flat pipe section 4 of the sea pipe, and close the two-way valve 3 at both ends of the bypass hose 10 to allow the medium to flow through the sea pipe. After the flat pipe section 4 is in circulation and the internal pressure of the bypass hose 10 is discharged, the corrosion coupons in the corrosion probe base 19 and the aging coupons 11 inside the internal pressure sealing layer 21 are taken out by non-stop production and no pressure operation. The detection of the coupon can further understand the corrosion of the metal skeleton layer of the bypass hose 10 and the aging of the internal pressure sealing layer 21 .

The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model, All still belong to within the scope of the technical solution of the utility model.

Claims (3)

1. ocean flexible pipe in-situ monitor device, comprise by-pass hose, sea pipe flat tube section, threeway, elbow, valve, display device, it is characterized in that described extra large pipe flat tube section entry end and outlet end are fixed with a described threeway respectively, the tributary interface of described threeway is connected with described elbow respectively by steel pipe, described by-pass hose is accessed between two described elbows, described by-pass hose entry end and outlet end respectively with hose coupling I, hose coupling II connects, the inner pressuring sealing layer inside of described by-pass hose is provided with aging lacing film, temperature transducer is buried underground in the armor of described by-pass hose, pressure transducer, described hose coupling II inside is provided with gas concentration sensor, transfer wire delivery channel, described hose coupling II outer installment has ring domain medium analysis mouth, described temperature transducer, pressure transducer, gas concentration sensor is connected with described display device by transfer wire.

2. ocean according to claim 1 flexible pipe in-situ monitor device, it is characterized in that described valve is two-way valve or triple valve, as two-way valve as described in adopting, two-way valve described in a pair need be set respectively between described extra large pipe flat tube section and described threeway, between described by-pass hose and the tributary interface of described threeway; As triple valve as described in adopting, a described triple valve need be set respectively at the river conjunction place of two described threeways.

3. ocean according to claim 1 flexible pipe in-situ monitor device, is characterized in that the constriction position of described hose coupling I is provided with interior media analytical port, and the constriction position of described hose coupling II is provided with ultrasonic thickness measurement point, corrosion probe pedestal.