Ocean flexible hose cable heat tracing device and use method

Abstract

The invention discloses an ocean flexible hose cable heat tracing device and a using method, the ocean flexible hose cable heat tracing device comprises a flexible oil conveying pipe, the outer end of the flexible oil conveying pipe is sleeved with a reinforcing sleeve layer, a through hole is formed in the reinforcing sleeve layer, a heat tracing belt is arranged in the through hole, and a junction box is arranged at the port of the heat tracing belt. The interior of the junction box is fixedly connected with a butt joint piece, a wire in the heat tracing band is connected with the butt joint piece, and the interior of the reinforcing sleeve layer is provided with a flexible hose temperature measurement optical fiber. According to the invention, the temperature of the flexible oil delivery pipe is detected through the data acquisition module, the collected oil pipe temperature information is analyzed, the heating number of the heat tracing band is controlled according to the analysis result of the oil pipe temperature information, and meanwhile, the operation state of the heat tracing band can be monitored; and whether the heat tracing band is damaged or not is judged through the detected oil pipe temperature information.

Description

Technical Field

[0001] The invention relates to the technical field of marine hose heating devices, in particular to a marine flexible hose cable heating device and a use method thereof. Background Art

[0002] According to the distribution of the earth's surface, the ratio of ocean to land is about 71% ocean and 29% land. With the development of energy, resource exploitation has developed from land to ocean. At the same time, the total amount of oil and gas resources contained in the ocean far exceeds that of land. For the exploitation of marine oil and gas, it is necessary to build marine oil wells in the ocean to explore, exploit, transport and process crude oil and natural gas in the ocean. The oil and gas exploited in the ocean need to rely on pipeline transportation, and the transportation pipelines of marine oil and gas are flexible hoses. Some flexible hoses are laid on the platform of marine oil wells, and some flexible hoses are connected to the seabed. The temperature difference between day and night in the ocean is large. The night temperature in some areas is as low as below zero. Too low temperature will freeze the pipeline of the flexible hose, and the low temperature will also freeze the oil transported in the flexible hose. In a low temperature environment, the freezing of the oil inside the hose will cause the pipeline to be blocked, affecting the smooth transportation of oil. In order to solve the problem of freezing of oil pipelines, a self-limiting temperature heating belt is added to the outside of the hose. Electric heating insulation converts electrical energy into thermal energy to supplement the heat loss in the pipeline, thereby achieving the purpose of antifreeze and insulation.

[0003] The existing heating tapes added to the outside of oil pipelines have the following defects:

[0004] 1. The existing heating belt is installed with aluminum tape, the stickiness of the tape is easily eroded by rain, and the tape is easy to fall off after long-term use, thus affecting the heating effect of the heating belt on the oil pipe;

[0005] 2. The heating tape fixed with aluminum tape is exposed to the outside of the pipeline, and the exposed heating tape has high heat loss during the heat transfer process;

[0006] 3. The self-limiting temperature heating belt has the characteristics of automatic temperature control. The output power can be automatically adjusted with the change of ambient temperature. There is no need to add a temperature control system on the outside. However, when the heating belt is damaged, its normal function is affected, so it is impossible to judge the heating effect of the pipeline. At the same time, the heating effect of a single heating belt is limited. For pipelines with larger thickness, the efficiency of temperature transfer of the heating belt is low.

[0007] To this end, the present invention provides a marine flexible hose cable heating device and a method for using the device, which solves the above-mentioned problem by monitoring the temperature outside the flexible oil pipeline in real time. Summary of the invention

[0008] In view of the deficiencies in the prior art, the present invention provides a marine flexible hose cable heating device and a use method to solve the above problems.

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions: a marine flexible hose cable heating device, comprising a flexible oil pipeline, the outer end of the flexible oil pipeline is sheathed with a reinforcement sheath, the interior of the reinforcement sheath is provided with a through hole, the interior of the through hole is provided with a heating belt, the port of the heating belt is provided with a junction box, the interior of the junction box is fixedly connected with a docking piece, the wire inside the heating belt is connected to the docking piece, the interior of the reinforcement sheath is provided with a flexible hose temperature measuring optical fiber, the flexible hose temperature measuring optical fiber is electrically connected to the docking piece, and the interior of the docking piece is provided with a control system;

[0010] The control system includes a data acquisition module; a control terminal is provided at the starting input end of the heating belt, and a server, a data analysis module and an execution control module are provided inside the control terminal.

[0011] Preferably, four through holes are provided inside the reinforcement sleeve layer, four groups of heating tapes are provided, a receiving cavity is provided inside the reinforcement sleeve layer, four receiving cavities are provided, a thermal insulation layer is provided inside the four receiving cavities, the flexible hose temperature measuring optical fiber is provided inside the thermal insulation layer, four groups of flexible hose temperature measuring optical fibers are provided and are electrically connected to the docking parts, and the distance between the two junction boxes is 100 meters.

[0012] Preferably, the data acquisition module is used to collect the oil pipe temperature information of the flexible oil pipe and transmit it to the server;

[0013] The server is used to receive and store the oil pipe temperature information, and send the received oil pipe temperature information to the data analysis module;

[0014] A data analysis module, used for analyzing the received oil pipe temperature information and generating a corresponding control heating instruction group, and sending the control heating instruction group to the execution control module, wherein the control heating instruction group includes a control heating instruction 1 and a control heating instruction 2;

[0015] The execution control module is used to receive the heating control instruction group and execute the corresponding instruction operation.

[0016] Preferably, the outer end of the reinforcement sleeve is fixedly connected to the flexible hose reinforcement inner layer, the outer end of the flexible hose reinforcement inner layer is fixedly connected to the flexible hose armored pressure-resistant protective layer, the outer end of the flexible hose armored pressure-resistant protective layer is fixedly connected to the flexible hose reinforcement outer layer, and the flexible hose reinforcement inner layer, the flexible hose armored pressure-resistant protective layer and the flexible hose reinforcement outer layer are each provided with four groups and are arranged equidistantly in a ring shape.

[0017] Preferably, the reinforcement sleeve is made of rubber and polyvinyl chloride as main materials, the insulation layer is made of sponge rubber material, the flexible hose reinforcement inner layer and the flexible hose reinforcement outer layer are made of synthetic rubber material, and the flexible hose armored pressure-resistant protective layer is made of polyurethane material.

[0018] Preferably, the outer end of the flexible hose reinforcement outer layer is fixedly connected to a flexible sealing layer, the outer end of the flexible sealing layer is provided with a flexible hose inner layer, a cavity is provided between the flexible hose inner layer and the flexible sealing layer, a support layer is provided inside the cavity, the support layer is made of a polyolefin elastomer material, and the cross-section of the support layer is wavy.

[0019] Preferably, the outer end of the flexible hose inner layer is fixedly connected to the flexible hose outer layer, and the flexible hose inner layer and the flexible hose outer layer are made of silicone rubber material.

[0020] Preferably, the outer end of the outer layer of the flexible hose is sleeved with a flexible hose ring, the junction box is fixedly connected to the outer end of the flexible hose ring, four junction boxes are provided, thread grooves are symmetrically provided on both sides of the flexible hose ring and the outer end is threadedly connected with a flexible hose fixing ring, the heating belt and one end of the flexible hose temperature measuring optical fiber pass through the flexible hose ring.

[0021] Preferably, a reinforcing card plate is clamped between the two groups of flexible hose fixing rings, a plug rod is fixedly connected to the bottom end of the reinforcing card plate, and fixing bolts are provided between the reinforcing card plate and the flexible hose fixing ring.

[0022] Preferably, the steps are as follows,

[0023] S1: marking the flexible oil pipeline between two adjacent groups of junction boxes as a detection section, and the data acquisition module collects the temperature of each detection section and sends it to the server;

[0024] S2: The server stores the oil pipe temperature information of each detection section and sends it to the data analysis module;

[0025] When the temperature of the oil pipe is lower than the temperature threshold 1, a control heating instruction 1 is sent to the execution control module, and at this time, a group of heating belts are heated;

[0026] When the temperature of the oil pipe is lower than the temperature threshold, a second heating control instruction is sent to the execution control module, and at this time, the two groups of heating belts generate heat.

[0027] Beneficial Effects

[0028] The present invention provides a marine flexible hose cable heating device and a method of use. Compared with the prior art, it has the following beneficial effects:

[0029] (1) This invention detects the temperature of the flexible oil pipeline through a data acquisition module, analyzes the collected oil pipeline temperature information, and controls the heating amount of the heating belt according to the analysis result of the oil pipeline temperature information. At the same time, it can monitor the operating status of the heating belt and determine whether the heating belt is damaged through the detected oil pipeline temperature information.

[0030] (2) The invention wraps the heating belt with a reinforcing sleeve and adds a thermal insulation layer inside the reinforcing sleeve to reduce the heat loss of the heating belt during the heating process and prevent the heating belt from being exposed to rain erosion. The installation of the heating belt does not require the use of aluminum tape, thereby preventing the heating belt from falling off the outer end of the flexible oil pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a three-dimensional diagram of the external structure of the present invention;

[0032] Figure 2 is a schematic diagram of the internal structure of the junction box of the present invention;

[0033] Figure 3 is a schematic diagram of the internal structure of the outer layer of the flexible hose of the present invention;

[0034] Figure 4 It is a schematic diagram of the connection structure between the reinforcement card plate and the insertion rod of the present invention;

[0035] Figure 5 It is a module flow chart of the device terminal of the present invention.

[0036] In the figure, 1, flexible oil pipeline; 2, reinforcement sleeve; 3, heating belt; 4, junction box; 5, docking piece; 6, insulation layer; 7, flexible hose temperature measurement optical fiber; 8, flexible hose outer layer; 9, flexible hose inner layer; 10, support layer; 11, flexible sealing layer; 12, flexible hose reinforced outer layer; 13, flexible hose armored pressure-resistant sheath; 14, flexible hose reinforced inner layer; 15, flexible hose collar; 16, flexible hose fixing ring; 17, reinforcement card plate; 18, plug rod; 19, fixing bolt. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Embodiment 1:

[0039] See also Figure 1-4A marine flexible hose cable heating device comprises a flexible oil pipeline 1, the outer end of the flexible oil pipeline 1 is sheathed with a reinforcement sleeve 2, the interior of the reinforcement sleeve 2 is provided with a through hole, the interior of the through hole is provided with a heating belt 3, the port of the heating belt 3 is provided with a junction box 4, the interior of the junction box 4 is fixedly connected with a docking piece 5, the wire inside the heating belt 3 is connected to the docking piece 5, the interior of the reinforcement sleeve 2 is provided with a flexible hose temperature measuring optical fiber 7, the flexible hose temperature measuring optical fiber 7 is electrically connected to the docking piece 5, and the interior of the docking piece 5 is provided with a control system; the control system comprises a data acquisition module; a control terminal is provided at the starting input end of the heating belt 3, and a server, a data analysis module and an execution control module are provided inside the control terminal. The purpose of this arrangement is that the docking piece 5 is used to connect multiple heating belts 3 in series, and the reinforcing sleeve 2 is used to wrap the heating belt 3 to prevent the heating belt 3 from being exposed to the outside and damaged by rain erosion. The flexible hose temperature measuring optical fiber 7 is set to detect the temperature of the outer end of the flexible oil pipeline 1. By detecting the temperature, it is determined whether the heating belt 3 at the outer end of a certain pipeline is damaged, so that the damaged heating belt 3 can be inspected and replaced in time to prevent the oil condensation and blockage in a certain pipeline.

[0040] Preferably, four through holes are provided inside the reinforcement sleeve 2, four groups of heating belts 3 are provided, a receiving cavity is provided inside the reinforcement sleeve 2, four receiving cavities are provided, the four receiving cavities are provided with a heat preservation layer 6, the flexible hose temperature measuring optical fiber 7 is provided inside the heat preservation layer 6, four groups of flexible hose temperature measuring optical fiber 7 are provided and are electrically connected to the docking piece 5, and the distance between the two junction boxes 4 is 100 meters. The purpose of this arrangement is that the four groups of flexible hose temperature measuring optical fibers 7 can measure the temperature from four points of the flexible oil pipeline 1 respectively, and the two junction boxes 4 provided at 100 meters make the length of the heating belt 3 fixed at about 100 meters, so as to prevent the heating belt 3 from being too long and affecting its normal use effect, and the provided heat preservation layer 6 enhances the heat preservation effect of the heating belt 3.

[0041] Preferably, the data acquisition module is used to collect the oil pipe temperature information of the flexible oil pipe 1 and transmit it to the server;

[0042] The server is used to receive and store the oil pipe temperature information, and send the received oil pipe temperature information to the data analysis module;

[0043] A data analysis module, used for analyzing the received oil pipe temperature information and generating a corresponding control heating instruction group, and sending the control heating instruction group to the execution control module, wherein the control heating instruction group includes a control heating instruction 1 and a control heating instruction 2;

[0044] The execution control module is used to receive the control heating instruction group and execute the corresponding instruction operation. The purpose of this setting is that the data acquisition module can monitor the temperature outside the flexible oil pipeline 1 in real time, and the terminal can control the heating quantity and point of the heating belt 3 according to the analyzed data.

[0045] Preferably, the outer end of the reinforcement sleeve 2 is fixedly connected to the flexible hose reinforcement inner layer 14, the outer end of the flexible hose reinforcement inner layer 14 is fixedly connected to the flexible hose armored compression sheath 13, the outer end of the flexible hose armored compression sheath 13 is fixedly connected to the flexible hose reinforcement outer layer 12, and the flexible hose reinforcement inner layer 14, the flexible hose armored compression sheath 13 and the flexible hose reinforcement outer layer 12 are all provided with four groups and are arranged in a circular and equidistant manner. The purpose of this arrangement is that the flexible hose armored compression sheath 13 provided has a protective effect on the flexible oil pipeline 1, reduces the impact force on the flexible oil pipeline 1, and thus prevents the flexible oil pipeline 1 from being damaged by impact, resulting in oil leakage.

[0046] Preferably, the reinforcement sleeve 2 is made of rubber and polyvinyl chloride as the main materials, the insulation layer 6 is made of sponge rubber material, the flexible hose reinforcement inner layer 14 and the flexible hose reinforcement outer layer 12 are made of synthetic rubber material, and the flexible hose armored compression-resistant sheath 13 is made of polyurethane material. The purpose of this arrangement is that the reinforcement sleeve 2 made of polyvinyl chloride rubber material has good elasticity and thermal insulation effect, the thermal insulation layer 6 made of sponge rubber material has good thermal insulation effect, and at the same time has a strong shock absorption effect, and has a good protective effect on the soft oil pipeline 1, and the flexible hose reinforcement inner layer 14 and the flexible hose reinforcement outer layer 12 made of synthetic rubber material have good elasticity and a certain antifreeze effect.

[0047] Preferably, the outer end of the flexible hose reinforcement outer layer 12 is fixedly connected with a flexible sealing layer 11, and the outer end of the flexible sealing layer 11 is provided with a flexible hose inner layer 9, and a cavity is provided between the flexible hose inner layer 9 and the flexible sealing layer 11, and a support layer 10 is provided inside the cavity, and the support layer 10 is made of a polyolefin elastomer material, and the cross section of the support layer 10 is wavy. The purpose of this arrangement is that the flexible sealing layer 11 has a sealing effect to prevent oil and gas from overflowing when the flexible oil pipeline 1 is broken, causing a safety accident, and the support layer 10 with a wavy cross section has good elasticity, so that when the pipeline is hit, it has good elasticity.

[0048] Preferably, the outer end of the flexible hose inner layer 9 is fixedly connected to the flexible hose outer layer 8, and the flexible hose inner layer 9 and the flexible hose outer layer 8 are made of silicone rubber material. The purpose of this arrangement is that the flexible hose inner layer 9 and the flexible hose outer layer 8 made of silicone rubber have strong antifreeze and anti-corrosion properties to prevent them from being damaged.

[0049] Preferably, the outer end of the flexible hose outer layer 8 is sleeved with a flexible hose collar 15, the junction box 4 is fixedly connected to the outer end of the flexible hose collar 15, and the junction box 4 is provided with four. The two sides of the flexible hose collar 15 are symmetrically provided with thread grooves and the outer end is threadedly connected with a flexible hose fixing ring 16, and the heating belt 3 and one end of the flexible hose temperature measuring optical fiber 7 pass through the flexible hose collar 15. The purpose of this arrangement is that the flexible hose collar 15 is used to fix the junction box 4, and the flexible hose fixing ring 16 is used to fix the flexible hose collar 15, which is easy to operate.

[0050] Preferably, a reinforcing card plate 17 is clamped between the two sets of flexible hose fixing rings 16, a plug rod 18 is fixedly connected to the bottom end of the reinforcing card plate 17, and a fixing bolt 19 is provided between the reinforcing card plate 17 and the flexible hose fixing ring 16. The purpose of this arrangement is that the provided plug rod 18 can fix the flexible hose collar 15 connected to the reinforcing card plate 17 on the platform, so as to prevent the platform from being too windy and waves, resulting in the deviation of the fixed position of the pipeline, thereby improving the safety of pipeline installation.

[0051] Embodiment 2:

[0052] See also Figure 5 This embodiment provides a technical solution of a marine flexible hose cable heating device and a method of use based on the first embodiment:

[0053] S1: The flexible oil pipeline 1 between two adjacent sets of junction boxes 4 is marked as a detection section, and the data acquisition module collects the temperature of each detection section and sends it to the server;

[0054] S2: The server stores the oil pipe temperature information of each detection section and sends it to the data analysis module;

[0055] When the temperature of the oil pipe is lower than the temperature threshold 1, a control heating instruction 1 is sent to the execution control module, and a group of heating belts 3 heats up;

[0056] When the temperature of the oil pipe is lower than the temperature threshold 2, a control heating instruction 2 is sent to the execution control module, and the two sets of heating belts 3 are heated.

[0057] In this embodiment, four heating tapes 3 are divided into two groups and connected in parallel. When it is detected that the oil pipe temperature is lower than the temperature threshold 1, one group of heating tapes 3 is controlled to heat up. When it is detected that the oil pipe temperature is lower than the temperature threshold 1, two groups of heating tapes 3 are controlled to heat up at the same time. While saving power loss, the oil temperature inside the flexible oil pipeline 1 is guaranteed to prevent it from freezing and affecting the transportation effect of the oil.

[0058] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0059] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A marine flexible hose cable heating device, comprising a flexible oil pipeline (1), characterized in that: The outer end of the flexible oil pipeline (1) is sheathed with a reinforcing sleeve (2), a through hole is provided inside the reinforcing sleeve (2), a heating belt (3) is provided inside the through hole, a junction box (4) is provided at the end of the heating belt (3), a docking piece (5) is fixedly connected inside the junction box (4), the wire inside the heating belt (3) is connected to the docking piece (5), a flexible hose temperature measuring optical fiber (7) is provided inside the reinforcing sleeve (2), the flexible hose temperature measuring optical fiber (7) is electrically connected to the docking piece (5), and a control system is provided inside the docking piece (5); The control system comprises a data acquisition module; a control terminal is provided at the starting input end of the heating belt (3), and a server, a data analysis module and an execution control module are provided inside the control terminal.

2. A marine flexible hose cable heating device according to claim 1, characterized in that: The reinforcement sleeve (2) has four through holes, the heating tape (3) has four groups, the reinforcement sleeve (2) has a receiving cavity, the four receiving cavities are provided inside, a heat-insulating layer (6) is provided inside the four receiving cavities, the flexible hose temperature-measuring optical fibers (7) are provided inside the heat-insulating layer (6), the flexible hose temperature-measuring optical fibers (7) are provided in four groups and are electrically connected to the docking piece (5), and the distance between the two junction boxes (4) is 100 meters.

3. A marine flexible hose cable heating device according to claim 1, characterized in that: A data acquisition module, used for collecting oil pipe temperature information of the flexible oil pipe (1) and transmitting the information to a server; The server is used to receive and store the oil pipe temperature information, and send the received oil pipe temperature information to the data analysis module; A data analysis module, used for analyzing the received oil pipe temperature information and generating a corresponding control heating instruction group, and sending the control heating instruction group to the execution control module, wherein the control heating instruction group includes a control heating instruction 1 and a control heating instruction 2; The execution control module is used to receive the heating control instruction group and execute the corresponding instruction operation.

4. A marine flexible hose cable heating device according to claim 2, characterized in that: The outer end of the reinforcement sleeve (2) is fixedly connected to a flexible hose reinforcement inner layer (14), the outer end of the flexible hose reinforcement inner layer (14) is fixedly connected to a flexible hose armored pressure-resistant protective layer (13), the outer end of the flexible hose armored pressure-resistant protective layer (13) is fixedly connected to a flexible hose reinforcement outer layer (12), and the flexible hose reinforcement inner layer (14), the flexible hose armored pressure-resistant protective layer (13) and the flexible hose reinforcement outer layer (12) are all provided in four groups and are arranged in a circular shape with equal spacing.

5. A marine flexible hose cable heating device according to claim 4, characterized in that: The reinforcement sleeve (2) is made of rubber and polyvinyl chloride as main materials, the thermal insulation layer (6) is made of sponge rubber material, the flexible hose reinforcement inner layer (14) and the flexible hose reinforcement outer layer (12) are made of synthetic rubber material, and the flexible hose armored pressure-resistant protective layer (13) is made of polyurethane material.

6. A marine flexible hose cable heating device according to claim 4, characterized in that: The outer end of the flexible hose reinforcement outer layer (12) is fixedly connected to a flexible sealing layer (11), the outer end of the flexible sealing layer (11) is provided with a flexible hose inner layer (9), a cavity is provided between the flexible hose inner layer (9) and the flexible sealing layer (11), a support layer (10) is provided inside the cavity, the support layer (10) is made of a polyolefin elastomer material, and the cross section of the support layer (10) is wavy.

7. A marine flexible hose cable heating device according to claim 6, characterized in that: The outer end of the flexible hose inner layer (9) is fixedly connected to the flexible hose outer layer (8), and the flexible hose inner layer (9) and the flexible hose outer layer (8) are made of silicone rubber material.

8. A marine flexible hose cable heating device according to claim 7, characterized in that: The outer end of the outer layer (8) of the flexible hose is sleeved with a flexible hose ring (15), the junction box (4) is fixedly connected to the outer end of the flexible hose ring (15), and the junction box (4) is provided with four. The flexible hose ring (15) is symmetrically provided with thread grooves on both sides and the outer end is threadedly connected with a flexible hose fixing ring (16), and the heating belt (3) and one end of the flexible hose temperature measuring optical fiber (7) pass through the flexible hose ring (15).

9. A marine flexible hose cable heating device according to claim 8, characterized in that: A reinforcing card plate (17) is clamped between the two groups of flexible hose fixing rings (16), a plug rod (18) is fixedly connected to the bottom end of the reinforcing card plate (17), and a fixing bolt (19) is provided between the reinforcing card plate (17) and the flexible hose fixing ring (16).

10. The method for using the marine flexible hose cable heating device according to claims 1-9, characterized in that: The steps are as follows, S1: marking the flexible oil pipeline (1) between two adjacent groups of junction boxes (4) as a detection section, and using a data acquisition module to collect the temperature of each detection section and send it to a server; S2: The server stores the oil pipe temperature information of each detection section and sends it to the data analysis module; When the temperature of the oil pipe is lower than a temperature threshold value 1, a control heating instruction 1 is sent to the execution control module, and at this time a group of heating belts (3) are heated; When the temperature of the oil pipe is lower than the second temperature threshold, a second control heating instruction is sent to the execution control module, and at this time, the two groups of heating belts (3) generate heat.

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