Flaring steel belt pipe for hot water

Abstract

The utility model discloses a flaring steel belt pipe for hot water, which relates to the technical field of steel belt pipes and comprises a steel belt pipe body, flaring portions are arranged at two ends of the steel belt pipe body, sealing rings are fixed inside the flaring portions, and butt joint rings are fixed on inner rings of the sealing rings. Through the arrangement of the sealing ring and the butt joint ring, the gap between the sealing ring and the inner wall of the flaring part can be used for containing an inner connecting piece, after two steel belt pipes are in butt joint, butt joint of the sealing rings of the two steel belt pipes is completed, the sealing performance of the pipelines after butt joint can be improved to a certain degree, and after two steel pipes are in butt joint, the sealing performance of the pipelines is improved. The butt joint ring in one steel strip pipe body is inserted into the other steel strip pipe body and abuts against the sealing ring in the other optical strip pipe body, on one hand, a complex path similar to a labyrinth is formed so that the sealing performance can be further improved, on the other hand, the two steel strip pipe bodies are in direct butt joint instead of being in butt joint through an inner connecting piece, and pressure is borne by the steel strip pipe bodies; the structural strength is high and stability is good; sealing performance is good, connection is stable, and strength is high.

Description

Technical Field

[0001] The utility model relates to the technical field of steel strip pipes, in particular to an expanded steel strip pipe for hot water. Background Art

[0002] Steel belt pipe is a kind of pipe formed by a composite of steel belt and resin. Since it uses steel belt as a supporting structure, it is mainly used to bury a pipeline buried underground. It can be used to transport fluids and install cables. It is widely used in municipal engineering, industry, electric power, road engineering, telecommunications and other fields.

[0003] Existing flared steel pipes are usually spliced ​​with flared connectors. The flared connector is mainly divided into two parts, an internal docking sealing part, and an external fixing part. When docking, the internal connection part needs to be inserted into the flared position of the steel pipe. When the external connection part is not connected, the two steel pipes are mainly supported by the internal connection part to avoid deviation of the axes of the two steel pipes. The support mainly relies on the internal connection part, and the steel pipe is heavy, resulting in high strength requirements for the internal connection part. Otherwise, structural bending is prone to occur, resulting in deviation of the pipeline axis. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a flared steel strip pipe for hot water to solve the technical problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flared steel strip pipe for hot water, comprising a steel strip pipe body, both ends of which are provided with flared parts, and a sealing ring is fixed inside the flared part, and a docking ring is fixed inside the inner circle of the sealing ring.

[0006] By adopting the above technical scheme, the gap between the sealing ring and the inner wall of the flared part can be used to place the internal connecting piece. When the two steel strip pipes are butt-jointed, the sealing rings of the two are also butt-jointed, which can increase the sealing of the pipes after butt-jointing to a certain extent. After the two steel pipes are butt-jointed, the butt-jointing ring in one steel strip pipe body is inserted into the other steel strip pipe body and offset with the sealing ring in the other optical tube body. Firstly, a complex maze-like path is formed to further increase the sealing. Secondly, the two steel strip pipe bodies are not butt-jointed through the internal connecting piece, but are butt-jointed directly. The pressure is borne by the steel strip pipe body, and the structure has high strength and good stability.

[0007] Furthermore, the steel strip pipe body and the butt-jointing rings are each provided with two, and the flaring portion and the sealing rings are each provided with four.

[0008] By adopting the above technical solution, the gap between the sealing ring and the inner wall of the flared part can be used to place the internal connecting parts. When the two steel strip pipes are butt-jointed, the sealing rings of the two are also butt-jointed, which can increase the sealing performance of the pipes after butt-jointing to a certain extent.

[0009] Furthermore, the docking ring is fixedly connected to one sealing ring, and the docking ring abuts against another sealing ring.

[0010] By adopting the above technical solution, after the two steel pipes are butt-jointed, the butt-jointing ring in one steel strip pipe body is inserted into the other steel strip pipe body and offset against the sealing ring in the other optical tube body. Firstly, a complex maze-like path is formed to further increase the sealing performance. Secondly, the two steel strip pipe bodies are not butt-jointed through internal connecting parts, but directly butt-jointed. The pressure is borne by the steel strip pipe body, and the structure has high strength and good stability.

[0011] Furthermore, the cross section of the docking ring is trapezoidal.

[0012] By adopting the above technical solution, since the cross-section of the docking ring is trapezoidal, slopes are provided at both ends thereof, thereby reducing the resistance of hot water passing through.

[0013] Furthermore, an external connecting piece is sleeved on the outside of the flared portion, and bolts penetrate the outer surface of the external connecting piece. The inner ring of the flared portion is connected to an internal connecting piece, and a sealing ring is connected to the top of the internal connecting piece.

[0014] By adopting the above technical solution, the inner connecting piece is placed in the gap between the sealing ring and the inner wall of the flared part, then the flared parts of the two steel strip pipe bodies are connected, and the outer connecting piece is put on the outside of the steel strip pipe body, and then the outer connecting piece is fixed by bolts, thereby fixing the two steel strip pipe bodies.

[0015] Furthermore, a plurality of the bolts are provided, and the plurality of bolts are distributed in a ring array.

[0016] By adopting the above technical solution, the outer connecting piece is fixed by bolts, thereby fixing the two steel strip pipe bodies to prevent the two steel strip pipe bodies from being separated.

[0017] Furthermore, the inner circle of the steel strip pipe body is provided with a heat-insulating layer, the inner circle of the heat-insulating layer is coated with a waterproof layer, and the inner circle of the waterproof layer is coated with an anti-corrosion layer.

[0018] By adopting the above technical scheme, during the use of the steel belt pipe body, the heat loss in the hot water is reduced through the insulation layer, and the insulation layer is prevented from absorbing hot water through the waterproof layer. The waterproof layer is oil felt, which has good toughness itself, reducing the phenomenon of the waterproof layer falling off due to thermal expansion and contraction, and the anti-corrosion layer prevents hot water from corroding the waterproof layer, the insulation layer and the steel belt pipe body.

[0019] Furthermore, the waterproof layer is an oil felt waterproof membrane.

[0020] By adopting the above technical solution, the insulation layer is prevented from absorbing hot water through the waterproof layer, and the waterproof layer is oil felt, which has good toughness itself, reducing the phenomenon of the waterproof layer falling off due to thermal expansion and contraction.

[0021] In summary, the utility model mainly has the following beneficial effects:

[0022] The utility model arranges the sealing ring and the docking ring, and the gap between the sealing ring and the inner wall of the flared part can be used to place the internal connecting piece. When the two steel strip pipes are docked, the sealing rings of the two are also docked, which can increase the sealing of the pipes after docking to a certain extent. After the two steel pipes are docked, the docking ring in one steel strip pipe body is inserted into the other steel strip pipe body and offset with the sealing ring in the other optical tube body. Firstly, a complex maze-like path is formed to further increase the sealing. Secondly, the two steel strip pipe bodies are not docked through the internal connecting piece, but directly docked. The pressure is borne by the steel strip pipe body, and the structure has high strength and good stability; the sealing is good, the connection is stable and the strength is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the steel belt pipe butt joint structure of the utility model;

[0025] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0026] Figure 4 For the utility model Figure 3 A magnified view of the structure in Figure 2.

[0027] In the figure: 1. Steel strip pipe body; 2. Expanding part; 3. Sealing ring; 4. Docking ring; 5. External connecting part; 6. Bolt; 7. Internal connecting part; 8. Sealing ring; 9. Anti-corrosion layer; 10. Waterproof layer; 11. Insulation layer. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0029] The following describes an embodiment of the utility model based on its overall structure.

[0030] Embodiment 1:

[0031] A hot water expanded steel strip pipe, such as Figure 1-Figure 4 As shown, it includes a steel strip pipe main body 1, and a flaring portion 2 is provided at both ends of the steel strip pipe main body 1. A sealing ring 3 is fixed inside the flaring portion 2. The flaring portion 2 and the sealing ring 3 are both provided with four. A docking ring 4 is fixed on the inner circle of the sealing ring 3. The cross-section of the docking ring 4 is trapezoidal. The steel strip pipe main body 1 and the docking ring 4 are both provided with two. The docking ring 4 is fixedly connected to one sealing ring 3, and the docking ring 4 abuts against the other sealing ring 3. The gap between the sealing ring 3 and the inner wall of the flaring portion 2 can be used to place an internal connector 7. When the two steel strip pipes are butt-jointed, the sealing rings 3 of the two are also butt-jointed, which can increase the sealing of the pipelines after butt-joining to a certain extent. After the two steel pipes are butt-jointed, the docking ring 4 in one steel strip pipe main body 1 is inserted into the other steel strip pipe main body 1, and abuts against the sealing ring 3 in the other optical tube main body. First, a complex maze-like path is formed to further increase the sealing. Second, the two steel strip pipe main bodies 1 are not butt-jointed through the internal connector 7, but are directly butt-jointed. The pressure is borne by the steel strip pipe main body 1, and the structure has high strength and good stability.

[0032] See also Figure 2-Figure 4 In the above embodiment, an external connecting piece 5 is sleeved on the outside of the flared portion 2, and bolts 6 are passed through the outer surface of the external connecting piece 5. A plurality of bolts 6 are provided, and the plurality of bolts 6 are distributed in a ring array. An internal connecting piece 7 is connected to the inner ring of the flared portion 2, and a sealing ring 8 is connected to the top of the internal connecting piece 7. The internal connecting piece 7 is placed in the gap between the sealing ring 3 and the inner wall of the flared portion 2, and then the flared portions of the two steel strip pipe bodies 1 are butt-jointed, and the external connecting piece 5 is sleeved on the outside of the steel strip pipe body 1, and then the external connecting piece 5 is fixed by the bolts 6, thereby fixing the two steel strip pipe bodies 1.

[0033] Embodiment 2:

[0034] On the basis of the above-mentioned embodiment 1, although the sealing ring 3 and the docking ring 4 are provided to achieve the effects of good sealing, stable connection and high strength; however, the steel strip tube body 1 uses steel strip and resin as conductors, and the thermal insulation performance is poor, which causes the heat of hot water to be easily dissipated, thereby causing waste; now, by providing an anti-corrosion layer 9, a waterproof layer 10 and a thermal insulation layer 11, the heat dissipation can be reduced.

[0035] See also Figure 3 and Figure 4 In the above embodiment, the inner circle of the steel strip pipe body 1 is provided with an insulation layer 11, and the inner circle of the insulation layer 11 is coated with a waterproof layer 10, which is an oil felt waterproof coiled material, and the inner circle of the waterproof layer 10 is coated with an anti-corrosion layer 9. The insulation layer 11 reduces the heat loss in the hot water, and the waterproof layer 10 prevents the insulation layer 11 from absorbing hot water. The waterproof layer 10 is oil felt, which has good toughness, reduces the phenomenon of thermal expansion and contraction causing the waterproof layer 10 to fall off, and the anti-corrosion layer 9 prevents hot water from corroding the waterproof layer 10, the insulation layer 11 and the steel strip pipe body 1.

[0036] The implementation principle of the utility model is as follows: first, the gap between the sealing ring 3 and the inner wall of the flared portion 2 can be used to place the inner connector 7. When the two steel strip pipes are butt-jointed, the sealing rings 3 of the two are also butt-jointed, which can increase the sealing performance of the pipes after butt-jointing to a certain extent. After the two steel pipes are butt-jointed, the butt-jointing ring 4 in one steel strip pipe body 1 is inserted into the other steel strip pipe body 1 and abuts against the sealing ring 3 in the other optical tube body. First, a complex maze-like path is formed to further increase the sealing performance. Second, the two steel strip pipe bodies 1 are not butt-jointed through the inner connector 7, but directly butt-jointed, and the pressure is borne by the steel strip pipe body 1, so that the structure has high strength and good stability.

[0037] During the use of the steel strip pipe body 1, the heat loss in the hot water is reduced through the insulation layer 11, and the insulation layer 11 is prevented from absorbing hot water through the waterproof layer 10. The waterproof layer 10 is oil felt, which has good toughness and reduces the phenomenon of the waterproof layer 10 falling off due to thermal expansion and contraction. The anti-corrosion layer 9 prevents hot water from corroding the waterproof layer 10, the insulation layer 11 and the steel strip pipe body 1.

[0038] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A flared steel strip pipe for hot water, comprising a steel strip pipe body (1), characterized in that: Both ends of the steel strip pipe body (1) are provided with flared parts (2), and a sealing ring (3) is fixed inside the flared part (2), and a docking ring (4) is fixed inside the inner ring of the sealing ring (3).

2. The expanded steel strip pipe for hot water according to claim 1, characterized in that: The steel strip pipe body (1) and the butt-jointing ring (4) are each provided with two, and the flaring portion (2) and the sealing ring (3) are each provided with four.

3. The expanded steel strip pipe for hot water according to claim 2, characterized in that: The butt joint ring (4) is fixedly connected to one sealing ring (3), and the butt joint ring (4) abuts against another sealing ring (3).

4. The expanded steel strip pipe for hot water according to claim 3, characterized in that: The cross section of the docking ring (4) is trapezoidal.

5. The expanded steel strip pipe for hot water according to claim 1, characterized in that: The flared portion (2) is sleeved with an external connecting piece (5), and bolts (6) penetrate the outer surface of the external connecting piece (5). The inner ring of the flared portion (2) is connected to an internal connecting piece (7), and a sealing ring (8) is connected to the top of the internal connecting piece (7).

6. The expanded steel strip pipe for hot water according to claim 5, characterized in that: A plurality of the bolts (6) are provided, and the plurality of bolts (6) are distributed in a ring array.

7. The expanded steel strip pipe for hot water according to claim 1, characterized in that: The inner circle of the steel strip pipe body (1) is provided with a heat-insulating layer (11), and the inner circle of the heat-insulating layer (11) is coated with a waterproof layer (10), and the inner circle of the waterproof layer (10) is coated with an anti-corrosion layer (9).

8. The expanded steel strip pipe for hot water according to claim 7, characterized in that: The waterproof layer (10) is an oil felt waterproof coiled material.

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