Corrosion-resistant pipe fitting of drilling platform

Abstract

The utility model relates to the technical field of drilling platforms, and discloses a drilling platform corrosion-resistant pipe fitting which comprises a pipe fitting body connected to a drilling platform, a connecting ring is installed at the end of the pipe fitting body, a protective layer is arranged outside the pipe fitting body in a sleeving mode, a corrosion-resistant coating is sprayed in the pipe fitting body, and a protective cavity is formed in the protective layer. Water absorption particles are arranged in the protection cavity, a separation net is installed in the protection cavity, and adsorption particles are arranged on the outer side of the separation net. The anti-corrosion coating is sprayed in the pipe fitting body, so that the internal metal surface is effectively prevented from making contact with corrosive substances, the corrosion resistance of the pipe fitting is greatly improved, the service life is prolonged, the water absorption particles arranged in the protection cavity can rapidly absorb external moisture, moisture is prevented from permeating to the surface of the pipe fitting body, and the service life of the pipe fitting is prolonged. The problem of corrosion caused by humidity is avoided, and through the design of the sliding baffle, opening and closing of the ventilation holes can be flexibly adjusted according to environmental conditions.

Description

TECHNICAL FIELD

[0001] The utility model relates to a drilling platform technical field, concretely is a kind of drilling platform corrosion-resistant pipe fittings. BACKGROUND

[0002] Drilling platform pipe fittings are the essential part in oil and gas drilling operation, mainly used for conveying fluid, supporting structure and connecting various systems. Among them, offshore riser is one of the main offshore drilling platforms, connecting drilling platform and underwater wellhead, conveying drilling fluid and oil and gas. Good flexibility, can keep stable under the influence of sea waves and wind.

[0003] But the existing drilling platform column due to environment damp, this can cause riser to rustify reaction under long time use, thereby causing the service life of riser to reduce;Therefore, it does not meet the existing demand, for this we propose a kind of drilling platform corrosion-resistant pipe fittings. INVENTION CONTENTS

[0004] The utility model provides a kind of drilling platform corrosion-resistant pipe fittings, with the beneficial effect of improving the corrosion resistance of pipe fittings, solve the problem that the existing drilling platform column due to environment damp in the above background art, this can cause riser to rustify reaction under long time use, thereby causing the service life of riser to reduce.

[0005] The utility model provides following technical scheme: a kind of drilling platform corrosion-resistant pipe fittings, including the pipe fitting body connected on drilling platform, the pipe fitting body end is equipped with connecting ring, the pipe fitting body is equipped with protective layer, the pipe fitting body is sprayed with anticorrosive coating in, the protective layer is equipped with protective cavity, the protective cavity is provided with water-absorbing particle, the protective cavity is equipped with screen, the screen outer side is provided with adsorbing particle.

[0006] As a kind of drilling platform corrosion-resistant pipe fittings of the utility model, wherein: the adsorbing particle is set to active carbon particle, a plurality of through holes are formed in the screen.

[0007] As a kind of drilling platform corrosion-resistant pipe fittings of the utility model, wherein: the protective layer is equipped with recess, a plurality of vent holes are formed in the recess, the vent hole is communicated with the protective cavity, the recess is slidably connected with baffle, the baffle is located the vent hole outer side.

[0008] As a kind of drilling platform corrosion-resistant pipe fittings of the utility model, wherein: the protective layer is equipped with retracting groove corresponding with the baffle, the baffle is slidably connected in the retracting groove, the baffle is equipped with clamping groove, the recess is equipped with clamping block, the clamping block is engaged with the clamping groove.

[0009] As a kind of drilling platform corrosion-resistant pipe fitting optional scheme of the utility model, wherein: the baffle both sides are equipped with sliding block, the retracting groove is equipped with the sliding slot corresponding with the sliding block, the sliding block sliding plug-in in the sliding slot.

[0010] As a kind of drilling platform corrosion-resistant pipe fitting optional scheme of the utility model, wherein: the connecting ring is equipped with fixed groove, the fixed groove is set as annular groove, the fixed groove is equipped with internal thread ring, the protective layer is equipped with external thread ring, the external thread ring is threadedly cooperated with the internal thread ring.

[0011] As a kind of drilling platform corrosion-resistant pipe fitting optional scheme of the utility model, wherein: the fixed groove is equipped with damping ring, the damping ring is set as rubber ring, the damping ring is interference fit with the connecting ring.

[0012] As a kind of drilling platform corrosion-resistant pipe fitting optional scheme of the utility model, wherein: the pipe body is equipped with reinforcing layer, the reinforcing layer is set as alloy steel layer.

[0013] The utility model has the following beneficial effects:

[0014] 1、the drilling platform corrosion-resistant pipe fitting, by spraying anticorrosive coating in pipe body, effectively prevent the inside metal surface and corrosive substance contact, to greatly improve the corrosion resistance of pipe fitting, prolongs the service life, the water-absorbing particles that the protection cavity is arranged can quickly absorb external humidity, prevent humidity from penetrating to the pipe body surface, avoid the rust problem caused by humidity, by the design of sliding baffle, the opening and closing of ventilation hole can be flexibly adjusted according to environmental conditions, when environmental humidity is too high or corrosive gas concentration is larger, ventilation hole can be closed, reduce the entry of external humidity and harmful gas, further improve the protection effect of pipe fitting.

[0015] 2、the drilling platform corrosion-resistant pipe fitting, by the fixed groove in connecting ring and internal thread ring and the thread cooperation of external thread ring outside protective layer, ensure the firm connection between pipe body and protective layer, prevent loosening or falling off caused by vibration or external force, by the reinforcing layer that pipe body is equipped with, reinforcing layer is set as alloy steel layer, the overall strength and durability of pipe fitting are enhanced, adapt to the harsh working environment of drilling platform. ACCURACY

[0016] Figure 1 It is the main body three-dimensional structure schematic view of the utility model.

[0017] Figure 2 It is the main body plane structure schematic view of the utility model.

[0018] Figure 3 It is the side view cut structure schematic view of the utility model.

[0019] Figure 4 It is the partial cut structure schematic view of the utility model.

[0020] Figure 5 It is the Figure 4 A place amplification structure schematic view in the utility model.

[0021] In the drawing: 110, pipe body; 111, connecting ring; 112, protective layer; 113, anticorrosive coating; 114, protective cavity; 115, water absorption particle; 116, screen; 117, adsorption particle; 118, through hole; 119, groove; 120, ventilation hole; 121, baffle; 122, retracting groove; 123, clamping groove; 124, clamping block; 125, sliding block; 126, fixing groove; 127, annular groove; 128, internal thread ring; 129, external thread ring; 130, damping ring; 131, reinforcing layer; 132, sliding groove. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Embodiment one aims to promote the solution to the problem that the existing drilling platform column is corroded due to the environmental dampness, which may cause the riser to be corroded after long-term use, thereby reducing the service life of the riser. Please refer to Figures 1-5 A kind of drilling platform corrosion-resistant pipe fitting, including pipe body 110 connected on drilling platform, pipe body 110 end installation has connecting ring 111, pipe body 110 outer sleeve is equipped with protective layer 112, pipe body 110 is sprayed with anticorrosive coating 113 in, protective layer 112 is equipped with protective cavity 114 in, protective cavity 114 is provided with water absorption particle 115 in, protective cavity 114 is equipped with screen 116 in, screen 116 outer side is provided with adsorption particle 117.

[0024] Adsorption particle 117 is set to activated carbon particle, screen 116 is equipped with several through holes 118 on. Protective layer 112 outer groove 119 is opened, groove 119 is equipped with several ventilation holes 120 in, ventilation hole 120 is communicated with protective cavity 114, baffle 121 is slidably inserted in groove 119, baffle 121 is located ventilation hole 120 outer side.

[0025] The protective layer 112 is provided with a retracting groove 122 corresponding to the baffle 121, the baffle 121 is slidingly inserted into the retracting groove 122, the baffle 121 is provided with a clamping groove 123, the recess 119 is provided with a clamping block 124, and the clamping block 124 is clamped with the clamping groove 123. The baffle 121 is provided with a sliding block 125 on both sides, and the retracting groove 122 is provided with a sliding groove 132 corresponding to the sliding block 125, and the sliding block 125 is slidingly inserted into the sliding groove 132.

[0026] When the drilling platform riser is in a humid environment, external moisture enters the protective cavity 114 through the ventilation hole 120 on the protective layer 112. The water absorption particles 115 in the protective cavity 114 quickly absorb moisture, preventing moisture from penetrating the surface of the pipe body 110. If there are corrosive gases such as hydrogen sulfide and carbon dioxide in the environment, these gases enter the protective cavity 114 through the ventilation hole 120. The activated carbon particles in the protective cavity 114 adsorb harmful gases, preventing them from corroding the pipe body 110. When the environmental humidity is too high or the concentration of corrosive gases is high, the sliding baffle 121 can be used to close the ventilation hole 120, reducing the entry of external moisture and harmful gases.

[0027] The baffle 121 slides in the sliding groove 132 through the sliding block 125, and the cooperation of the clamping block 124 and the clamping groove 123 ensures that the baffle 121 is fixed in place. The anticorrosive coating 113 sprayed in the pipe body 110 further enhances the corrosion resistance of the pipe, ensuring its long-term use in harsh environments. When the water absorption particles 115 and the adsorption particles 117 in the protective cavity 114 reach a saturated state, the protective layer 112 can be opened to replace the new water absorption particles 115 and the adsorption particles 117, ensuring the sustained protection effect of the pipe.

[0028] In this embodiment: by spraying the anticorrosive coating 113 in the pipe body 110, the internal metal surface is effectively prevented from contacting corrosive substances, greatly improving the corrosion resistance of the pipe and prolonging its service life. The water absorption particles 115 inside the protective cavity 114 can quickly absorb external moisture, preventing moisture from penetrating the surface of the pipe body 110 and avoiding rust problems caused by humidity. Through the design of the sliding baffle 121, the opening and closing of the ventilation hole 120 can be flexibly adjusted according to environmental conditions. When the environmental humidity is too high or the concentration of corrosive gases is high, the ventilation hole 120 can be closed to reduce the entry of external moisture and harmful gases, further improving the protection effect of the pipe.

[0029] In this embodiment: by spraying the anticorrosive coating 113 in the pipe body 110, the internal metal surface is effectively prevented from contacting corrosive substances, greatly improving the corrosion resistance of the pipe and prolonging its service life. The water absorption particles 115 inside the protective cavity 114 can quickly absorb external moisture, preventing moisture from penetrating the surface of the pipe body 110 and avoiding rust problems caused by humidity. Through the design of the sliding baffle 121, the opening and closing of the ventilation hole 120 can be flexibly adjusted according to environmental conditions. When the environmental humidity is too high or the concentration of corrosive gases is high, the ventilation hole 120 can be closed to reduce the entry of external moisture and harmful gases, further improving the protection effect of the pipe. Figures 1-5The connecting ring 111 is provided with a fixing groove 126, the fixing groove 126 is provided as an annular groove 127, the fixing groove 126 is provided with an inner threaded ring 128, the protective layer 112 is provided with an outer threaded ring 129, and the outer threaded ring 129 is screwed with the inner threaded ring 128.

[0030] The fixing groove 126 is provided with a damping ring 130, the damping ring 130 is provided as a rubber ring, the damping ring 130 is tightly combined with the connecting ring 111 in interference, the damping ring 130 enhances the sealing performance of the connecting part, the damping ring 130 is provided as a rubber ring, has good elasticity and sealing performance, can fill the small gap of the connecting part, and effectively prevents the penetration of moisture and corrosive substances.

[0031] In the embodiment, the fixing groove 126 and the inner threaded ring 128 in the connecting ring 111 are screwed with the outer threaded ring 129 outside the protective layer 112, the firm connection between the pipe body 110 and the protective layer 112 is ensured, the loosening or falling caused by vibration or external force is prevented, the pipe body 110 is provided with the reinforcing layer 131, the reinforcing layer 131 is provided as an alloy steel layer, the overall strength and durability of the pipe are enhanced, and the pipe is adapted to the harsh working environment of the drilling platform.

[0032] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or action from another entity or action, without necessarily requiring or implying any such actual relationship or order between these entities or actions. Moreover, the terms "comprises", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article, or apparatus.

[0033] The above description is only the preferred embodiment of the present application, and it should be pointed out that, for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be regarded as the protection scope of the present application.

Claims

1. An offshore drilling platform corrosion resistant pipe fitting comprising a pipe fitting body (110) connected to an offshore drilling platform, characterised in that: The pipe body (110) is provided with a connecting ring (111) at the end, the pipe body (110) is provided with a protective layer (112), the pipe body (110) is sprayed with an anticorrosive coating (113), the protective layer (112) is provided with a protective cavity (114), the protective cavity (114) is provided with water absorption particles (115), the protective cavity (114) is provided with a separation net (116), and the separation net (116) is provided with adsorption particles (117) on the outer side.

2. A corrosion resistant tubular for use in a drilling platform according to claim 1, characterized in that: The adsorption particles (117) are activated carbon particles, and a plurality of through holes (118) are formed in the separation net (116).

3. A corrosion resistant tubular for use in a drilling platform according to claim 1, wherein: The protective layer (112) is provided with a groove (119) on the outer side, a plurality of ventilation holes (120) are formed in the groove (119), the ventilation holes (120) are communicated with the protective cavity (114), and a baffle (121) is slidably connected in the groove (119).

4. A corrosion resistant tubular for use in a drilling platform according to claim 3, wherein: The protective layer (112) is provided with a recovery groove (122) corresponding to the baffle (121), the baffle (121) is slidably connected in the recovery groove (122), the baffle (121) is provided with a clamping groove (123), and a clamping block (124) is mounted in the groove (119) and clamped with the clamping groove (123).

5. A corrosion resistant tubular for use in a drilling platform according to claim 4, wherein: The baffle (121) is provided with a sliding block (125) on both sides, the recovery groove (122) is provided with a sliding groove (132) corresponding to the sliding block (125), and the sliding block (125) is slidably connected in the sliding groove (132).

6. A corrosion resistant tubular for use in a drilling platform according to claim 1, characterized in that: The connecting ring (111) is provided with a fixing groove (126), the fixing groove (126) is an annular groove (127), the fixing groove (126) is provided with an inner threaded ring (128), the protective layer (112) is provided with an outer threaded ring (129), and the outer threaded ring (129) is threadedly connected with the inner threaded ring (128).

7. A corrosion resistant tubular for use in a drilling platform according to claim 6, wherein: The fixing groove (126) is provided with a damping ring (130), the damping ring (130) is a rubber ring, and the damping ring (130) is in interference fit with the connecting ring (111).

8. A corrosion resistant tubular for use in a drilling platform according to claim 1, characterized in that: The pipe body (110) is provided with a reinforcing layer (131), and the reinforcing layer (131) is an alloy steel layer.

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