Waterproof and anti-corrosion steel jacket steel thermal insulation pipe

Abstract

The utility model relates to the field of steel-sleeved-steel thermal insulation pipes, in particular to a waterproof and anti-corrosion steel-sleeved-steel thermal insulation pipe, which comprises an outer steel pipe, an inner steel pipe, an outer steel pipe, an inner steel pipe, a steel pipe, an outer steel pipe, an inner steel pipe and an outer steel pipe, the surface of the outer steel pipe is provided with holes, and thermal insulation materials are arranged in an inner cavity of the outer steel pipe; through the plane parts and the extension parts of the two arc-shaped plates in the locking assembly, a gap between the connecting positions of the two arc-shaped plates can be closed and sealed, meanwhile, through the covering parts, gaps between the two sides of the arc-shaped plates and the outer steel pipe can be covered, water vapor can be effectively prevented from entering, and the service life of the outer steel pipe is prolonged. Therefore, the effects of preventing water and preventing corrosion of the inner steel pipe in the thermal insulation material can be achieved. By means of the locking piece of the locking assembly, the two arc-shaped plates can be rapidly closed and locked in a mutually pulling and approaching mode, the closing compactness of the two arc-shaped plates is improved, meanwhile, the sealing effect between the two arc-shaped plates is improved, and manpower and time consumed by a bolt connecting mode used by a traditional worker are saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of steel casing steel heat preservation pipe, especially to a waterproof and anticorrosive steel casing steel heat preservation pipe. BACKGROUND

[0002] The steel casing steel heat preservation pipe is composed of two layers of steel pipes, with insulation material filled in the middle, aiming to reduce heat loss and improve energy efficiency. The outer steel pipe provides mechanical strength and protection, while the inner layer is used for medium transportation. The pipe has good waterproof and anticorrosive properties, suitable for long-distance heat transportation in the petroleum and chemical industries. Its structural design ensures pressure and temperature resistance, and reliable operation in harsh environments, widely used in municipal engineering, industrial piping and other fields.

[0003] After searching, the Chinese patent "Waterproof and anticorrosive steel casing steel heat preservation pipe" with authorization announcement number "CN217653521U" discloses a waterproof and anticorrosive steel casing steel heat preservation pipe, which includes an inner steel pipe, two groups of outer steel pipes are arranged on the circumference of the inner steel pipe, the opposite surfaces of the two groups of outer steel pipes are in contact with a first arc-shaped pipe and a second arc-shaped pipe, a hinge is hinged at the connection between the lower sides of the first arc-shaped pipe and the second arc-shaped pipe, a first fixed block is fixedly connected to the outer wall of the upper side of the first arc-shaped pipe, a second fixed block is fixedly connected to the outer wall of the upper side of the second arc-shaped pipe, the positions of the second fixed block and the first fixed block correspond, the first arc-shaped pipe and the second arc-shaped pipe are arranged in each outer steel pipe, and the first arc-shaped pipe and the second arc-shaped pipe can be opened and closed under the cooperation of the hinge, thereby facilitating the maintenance of the insulation layer inside the outer steel pipe. After the insulation layer is repaired, the first arc-shaped pipe and the second arc-shaped pipe can be fixed by the cooperation of the bolts and nuts on the first fixed block and the second fixed block.

[0004] Although the above-mentioned steel casing steel heat preservation pipe sets openable arc-shaped plates on the surface of the outer steel pipe, which can facilitate the maintenance of the internal insulation material, due to the open hole design of the surface of the outer steel pipe and the corresponding size of the hole, there will inevitably be gaps after the arc-shaped plates are closed. Therefore, water vapor will easily enter the insulation material when the temperature changes greatly, affecting the effect of the insulation material and increasing heat loss. Moreover, the connection of the two arc-shaped plates by bolts is not only complicated to operate, but also prone to rust or slippage, affecting the maintenance efficiency.

[0005] Therefore, a waterproof and anticorrosive steel casing steel heat preservation pipe is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a waterproof and anticorrosive steel casing steel heat preservation pipe to solve the above problems, improving the problem of lack of waterproof and anticorrosive effect of the steel casing steel heat preservation pipe.

[0007] The utility model discloses a waterproof anticorrosive steel sleeve steel heat preservation pipe through following technical scheme to realize above -mentioned purpose, a kind of waterproof anticorrosive steel sleeve steel heat preservation pipe, comprising: outer steel pipe, the surface of outer steel pipe is set as open hole, the inner chamber of outer steel pipe is provided with heat preservation material, the inner chamber of heat preservation material is provided with inner steel pipe;

[0008] Locking assembly is arranged on the surface of outer steel pipe;

[0009] Wherein, locking assembly includes the arc plate that is movably connected to the surface of outer steel pipe by pivot, both sides of the surface of two arc plates are provided with covering part;The surface of one arc plate is provided with plane part, and the surface of another arc plate is provided with extension part, the side of extension part close to plane part is in contact with plane part, the gap between the connecting place of two arc plates can be closed and sealed by the plane part and extension part of two arc plates;The surface of one arc plate is fixedly connected with movable shell, the inner chamber of movable shell is provided with sliding slot, the inner chamber of sliding slot is fixedly connected with slide rod, the surface of slide rod is sleeved with slide base, and the top of slide base is fixedly connected with locking seat;The surface of another arc plate is fixedly connected with locking block, the surface of locking block is connected with locking buckle by pivot, and the surface of locking buckle is connected with locking seat, locking block and locking buckle can lock and seal two arc plates, to prevent water vapor from entering heat preservation material;The surface of slide base is fixedly connected with spring, and one end of spring away from slide base is fixedly connected with the inner wall of sliding slot, and two arc plates can be pulled close to each other by spring.

[0010] Preferably, both ends of the inner steel pipe are provided with connecting shells, and the two connecting shells are convex and concave respectively, so that the two inner steel pipes can be quickly connected by the connecting shells.

[0011] Preferably, the surface of one connecting shell is fixedly connected with a protrusion, and the surface of the other connecting shell is provided with a connecting hole, and the inner chamber of the connecting hole corresponds to the protrusion, so that the two connecting shells can be limited by the protrusion and the connecting hole.

[0012] The utility model has the advantages that:

[0013] The plane part and extension part of two arc plates in locking assembly can close and seal the gap between the connecting place of two arc plates, and the gap between the two sides of arc plate and outer steel pipe can be covered by covering part, so that water vapor can be effectively prevented from entering, and the effect of preventing corrosion of inner steel pipe in heat preservation material can be achieved.

[0014] Through the locking piece of the locking assembly, the two arc-shaped plates can be quickly closed and locked by being pulled close to each other, the closing tightness of the two arc-shaped plates is improved, the sealing effect between the two arc-shaped plates is also improved, and the manpower and time consumed by the traditional staff in the bolt connection mode are saved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model;

[0016] Figure 2 It is an arc-shaped plate opening structural schematic view of the utility model;

[0017] Figure 3 It is a structural schematic view of the locking assembly of the utility model;

[0018] Figure 4 It is a structural schematic view of the utility model; Figure 3 It is a structural enlarged schematic view of A place in the utility model;

[0019] Figure 5 It is a structural sectional view schematic view of the inner steel pipe of the utility model.

[0020] In the drawing: 1, outer steel pipe; 2, heat preservation material; 3, locking assembly; 301, arc-shaped plate; 302, movable shell; 303, sliding groove; 304, locking seat; 305, locking block; 306, locking buckle; 307, spring; 308, sliding rod; 309, sliding seat; 4, inner steel pipe; 5, connecting shell; 6, connecting hole; 7, protruding block. DETAILED DESCRIPTION

[0021] 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, not 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.

[0022] In specific implementation, as shown in the drawing: Figures 1-5 A waterproof and corrosion-resistant steel sleeve steel heat preservation pipe, comprising: an outer steel pipe 1, the surface of the outer steel pipe 1 is provided with an opening, the inner cavity of the outer steel pipe 1 is provided with heat preservation material 2, the inner cavity of the heat preservation material 2 is provided with an inner steel pipe 4; a locking assembly 3, the locking assembly 3 is arranged on the surface of the outer steel pipe 1.

[0023] As shown in the drawing, Figure 1 , Figure 3 and Figure 4As shown, the locking assembly 3 comprises an arc-shaped plate 301 movably connected to the surface of the outer steel pipe 1 through a rotating shaft, both sides of the surface of the arc-shaped plate 301 are provided with a covering part; the surface of one of the arc-shaped plates 301 is provided with a flat part, the surface of the other arc-shaped plate 301 is provided with an extension part, one side of the extension part close to the flat part is in contact with the flat part; the surface of one of the arc-shaped plates 301 is fixedly connected with a movable shell 302, the inner cavity of the movable shell 302 is provided with a sliding groove 303, the inner cavity of the sliding groove 303 is fixedly connected with a sliding rod 308, the surface of the sliding rod 308 is sleeved with a sliding seat 309, the top of the sliding seat 309 is fixedly connected with a locking seat 304; the surface of the other arc-shaped plate 301 is fixedly connected with a locking block 305, the surface of the locking block 305 is connected with a locking buckle 306 through a rotating shaft, the surface of the locking buckle 306 is clamped with the locking seat 304; the surface of the sliding seat 309 is fixedly connected with a spring 307, one end of the spring 307 away from the sliding seat 309 is fixedly connected with the inner wall of the sliding groove 303;

[0024] If the staff needs to maintain the thermal insulation material 2, only need to push the locking block 305 upward, at this time the pulling force of the locking buckle 306 disappears, then push the locking buckle 306 upward and remove it from the surface of the locking seat 304, at this time the arc-shaped plate 301 can be opened, the thermal insulation material 2 inside the outer steel pipe 1 can be replaced and maintained, after maintenance, only need to pull the locking seat 304 to the direction of the locking block 305, then clamp the locking buckle 306 on the locking seat 304, and press the locking block 305 downward, at this time the two arc-shaped plates 301 are pulled to the opposite side by the contraction force of the spring 307, reaching the closed state;

[0025] When the two arc-shaped plates 301 are closed, the extension part and the flat part of the two arc-shaped plates 301 are in contact and fit, at the same time the covering part covers the gap between the outer steel pipe 1 and the arc-shaped plate 301, which can effectively block the water vapor and prevent the water vapor from entering the thermal insulation material 2 and affecting the heat preservation effect of the thermal insulation material 2, and also can prevent the water vapor from corroding the inner steel pipe 4;

[0026] As shown in the drawings, Figure 5 The two ends of the inner steel pipe 4 are provided with a connecting shell 5, the two connecting shells 5 are protruding type and recessed type respectively; the surface of one of the connecting shells 5 is fixedly connected with a protruding block 7, the surface of the other connecting shell 5 is provided with a connecting hole 6, the inner cavity of the connecting hole 6 corresponds to the protruding block 7;

[0027] When the staff connects the steel sleeve steel thermal insulation pipe, the connecting shells 5 of the two inner steel pipes 4 are connected with each other, at this time, it should be noted that when the two connecting shells 5 are connected, the protruding type connecting shell 5 should correspond to the recessed type connecting shell 5, at this time the protruding type connecting shell 5 enters the inside of the recessed type connecting shell 5 to connect the two inner steel pipes 4;

[0028] The utility model discloses a locking buckle is provided with the locking block 305, the locking block 305 is provided with the locking seat 304, the locking seat 304 is provided with the locking buckle 306, the locking buckle 306 is provided with the arc plate 301, the arc plate 301 is provided with the spring 307, the arc plate 301 is provided with the outer steel pipe 1, the outer steel pipe 1 is provided with the inner steel pipe 4, the outer steel pipe 1 is provided with the heat preservation material 2, the utility model discloses when using, if the staff needs to maintain heat preservation material 2, only need to push open locking block 305 upwards, connecting buckle then follows locking block 305 upwards, the pulling force of locking buckle 306 then disappears, the staff removes locking buckle 306 from the surface of locking seat 304 and pushes open again, two arc plates 301 then do not be mutually restricted, the staff can open arc plate 301 to replace and maintain heat preservation material 2 in the inside of outer steel pipe 1, after maintaining, only need to pull locking seat 304 to the direction of locking block 305, and then the locking buckle 306 is connected on locking seat 304, and press locking block 305 downwards, two arc plates 301 then are pulled to the opposite side by the contraction force of spring 307, reach closed state, when two arc plates 301 close, the extension of two arc plates 301 and plane part contact and fit, and the gap of covering portion to outer steel pipe 1 and arc plate 301 is covered, can effectively block water vapor, prevent water vapor from being immersed in heat preservation material 2 and affect the heat preservation effect of heat preservation material 2, can also prevent water vapor from corroding inner steel pipe 4.

[0029] Furthermore, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A water and corrosion proof steel-in-steel thermal insulation pipe, characterized in that, Include: The surface of the outer steel pipe (1) is provided with an opening, the inner cavity of the outer steel pipe (1) is provided with a heat preservation material (2), the inner cavity of the heat preservation material (2) is provided with an inner steel pipe (4); Locking assembly (3), the locking assembly (3) is arranged on the surface of the outer steel pipe (1); Wherein, the locking assembly (3) includes an arc plate (301) movably connected to the surface of the outer steel pipe (1) through a rotating shaft, two arc plates (301) are arranged on both sides of the surface of the arc plate (301); The surface of one of the arc plates (301) is provided with a flat part, and the surface of the other arc plate (301) is provided with an extension part, and the side of the extension part close to the flat part is in contact with the flat part; The surface of one of the arc plates (301) is fixedly connected with a movable shell (302), the inner cavity of the movable shell (302) is provided with a sliding groove (303), the inner cavity of the sliding groove (303) is fixedly connected with a sliding rod (308), the surface of the sliding rod (308) is sleeved with a sliding seat (309), and the top of the sliding seat (309) is fixedly connected with a locking seat (304); The surface of the other arc plate (301) is fixedly connected with a locking block (305), the surface of the locking block (305) is connected with a locking buckle (306) through a rotating shaft, and the surface of the locking buckle (306) is connected with the locking seat (304). The surface of the sliding seat (309) is fixedly connected with a spring (307), and the end of the spring (307) away from the sliding seat (309) is fixedly connected with the inner wall of the sliding groove (303).

2. The steel-in-steel thermal pipe with water and corrosion resistance according to claim 1, characterized in that: The two ends of the inner steel pipe (4) are provided with connecting shells (5), and the two connecting shells (5) are convex and concave respectively.

3. The steel-in-steel thermal pipe with water and corrosion resistance according to claim 2, characterized in that: The surface of one of the connecting shells (5) is fixedly connected with a convex block (7), and the surface of the other connecting shell (5) is provided with a connecting hole (6), and the inner cavity of the connecting hole (6) corresponds to the convex block (7).

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