Heat preservation steel pipe

Abstract

The utility model belongs to the technical field of heat preservation steel pipes, and discloses a heat preservation steel pipe which comprises a first outer protection pipe, a second outer protection pipe and a steel pipe body, heat preservation glass fibers are sleeved on the outer side of the steel pipe body, silica gel fireproof cloth is sleeved on the outer side of the heat preservation glass fibers, and heat preservation materials are sleeved on the outer side of the silica gel fireproof cloth. The outer side of the heat preservation material is sleeved with a binding belt, the outer side of the binding belt is slidably connected with a connecting buckle, the interior of the connecting buckle is rotationally connected with a rotating pin, the outer side of the rotating pin penetrates through the binding belt, the outer side of the heat preservation material is sleeved with a rubber layer, and the outer side of the rubber layer is sleeved with a first outer protection pipe. The problems that after a steel pipe body is installed and fixed, a heat preservation layer is packaged outside the steel pipe body, glue is used in the packaging process, the bonding strength can be affected by the quality of the adhesive and the construction technology, after long-term use, the adhesive can be aged, the health of constructors is affected to a certain degree, and the heat preservation effect is poor are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of insulated steel pipes, and specifically relates to an insulated steel pipe. Background Technique

[0002] An insulated steel pipe is a pipe with a thermal insulation layer added to the outer layer of an ordinary steel pipe, mainly used to reduce heat loss or prevent overheating when transporting liquids or gases. It is generally made of carbon steel or alloy steel and is used to bear the pressure of the internal fluid and transport the medium.

[0003] Meanwhile, the patent with the application number 202022632299.6 discloses an insulated steel pipe, including a ribbed steel pipe. An epoxy powder layer is fixedly connected to the inner wall of the ribbed steel pipe. A first reinforcing rib is fixedly connected to the inner wall of the epoxy powder layer. A first silica gel fireproof cloth is fixedly connected to the inner wall of the first reinforcing rib. A thermal insulation mechanism is fixedly connected to the inner wall of the first silica gel fireproof cloth. A second silica gel fireproof cloth is fixedly connected to the inner wall of the thermal insulation mechanism. A second reinforcing rib is fixedly connected to the inner wall of the second silica gel fireproof cloth. The thermal insulation mechanism includes a thermal insulation ceramic fiber layer, a thermal insulation glass fiber layer, and a thermal insulation inorganic fiber layer.

[0004] However, in the implementation of related technologies, it is found that in actual operation, after the steel pipe is installed and fixed, the thermal insulation layer is wrapped outside it, and glue is used during the wrapping process. The bonding strength may be affected by the quality of the adhesive and the construction process. After long-term use, the adhesive may age, resulting in a decrease in the bonding effect, which brings a lot of trouble to on-site operations, low work efficiency, and high labor intensity. Moreover, when using rock wool, dust may be generated during the construction process, which has a certain impact on the health of construction workers and poor thermal insulation effect. Content of the Utility Model

[0005] To solve the problems raised in the above background technique, the utility model provides an insulated steel pipe, which abandons the traditional thermal insulation material rock wool, which has relatively poor thermal insulation effect and high thermal conductivity. Now, thermal insulation glass fiber is used, which has good thermal insulation effect and low thermal conductivity. Different from the traditional thermal insulation materials, during the construction process, no dust will be generated. When connecting the thermal insulation material to the insulated steel pipe, a bundling device is adopted, which can adapt to steel pipe bodies of different models, is easy to operate, has a fast bundling speed, and does not require secondary processing on-site, thus improving the work efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an insulated steel pipe, comprising a first outer protective tube, a second outer protective tube and a steel pipe body, the outer side of the steel pipe body is knotted with insulating glass fiber, the outer side of the insulating glass fiber is knotted with silicone fireproof cloth, the outer side of the silicone fireproof cloth is knotted with insulating material, the outer side of the insulating material is knotted with a cable tie, the outer side of the cable tie is slidably connected to a connecting buckle, the inner side of the connecting buckle is rotatably connected to a rotating pin, the outer side of the rotating pin passes through the cable tie, the outer side of the insulating material is knotted with a rubber layer, and the outer side of the rubber layer is knotted with the first outer protective tube.

[0007] Preferably, a partition is fixedly connected to the outside of the first outer protective tube, a connecting block is fixedly connected to the outside of the partition, a spring is sleeved on the outside of the connecting block, a protrusion is tightly set on the other end of the spring, and the protrusion is fixedly connected to the connecting block.

[0008] Preferably, a circular hole groove is opened on the left side of the second outer protective tube, a buffer ring is embedded in the circular hole groove of the second outer protective tube, and the protrusion is slidably connected inside the buffer ring.

[0009] Preferably, the first outer protective tube is made of corrosion-resistant material, and the outer side of the first outer protective tube is made of hydrophobic material.

[0010] Preferably, the thermal insulation glass fiber is slidably connected to the steel pipe body, and the thermal insulation glass fiber is configured as a thermal insulation material.

[0011] Preferably, friction blocks are arranged inside the rubber layer, and the friction blocks are arranged in several groups.

[0012] Preferably, the cable tie is arranged tightly against the outside of the thermal insulation material and the silicone fireproof cloth.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model uses insulating glass fiber with low thermal conductivity and good thermal insulation effect as the thermal insulation material for insulation. When bundling the thermal insulation material and the steel pipe body, it is only necessary to rotate the rotating pin on the outside of the connecting buckle to achieve tight bundling. In the process, the operation is simple and the construction cost is low. After bundling, the sealing is good, which can effectively prevent the intrusion of external moisture and air, improve the thermal insulation effect of the steel pipe body, and extend the service life of the steel pipe body.

[0015] 2. By adding a snap connection device to the outside of the first outer protection tube in the present utility model, when construction needs to be carried out on the steel pipe body, it is only necessary to insert the bump of the first outer protection tube into the buffer ring in the spherical groove inside the second outer protection tube to achieve connection and fixation. Moreover, the outer protection tubes are all made of output materials, reducing the entry of water into the inside of the steel pipe body, extending the service life of the steel pipe body, greatly reducing heat loss, and improving energy utilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the cable tie structure of the present utility model;

[0018] Figure 3 is a schematic diagram of the partition structure of the present utility model;

[0019] Figure 4 is a schematic diagram of the first outer protection tube structure of the present utility model;

[0020] Figure 5 is a schematic diagram of the second outer protection tube structure of the present utility model.

[0021] In the figure: 1. First outer protection tube; 2. Second outer protection tube; 3. Friction block; 4. Partition; 5. Connection block; 6. Spring; 7. Bump; 8. Buffer ring; 9. Rubber layer; 10. Thermal insulation material; 11. Silicone fireproof cloth; 12. Thermal insulation glass fiber; 13. Steel pipe body; 14. Cable tie; 15. Connection buckle; 16. Rotating pin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] As Figures 1 to 5 shown, the present utility model provides a heat-insulating steel pipe, including a first outer protection tube 1, a second outer protection tube 2 and a steel pipe body 13. The outside of the steel pipe body 13 is sleeved with thermal insulation glass fiber 12, the outside of the thermal insulation glass fiber 12 is sleeved with silicone fireproof cloth 11, the outside of the silicone fireproof cloth 11 is sleeved with thermal insulation material 10, the outside of the thermal insulation material 10 is sleeved with a cable tie 14, the outside of the cable tie 14 is slidably connected with a connection buckle 15, the inside of the connection buckle 15 is rotatably connected with a rotating pin 16, the outside of the rotating pin 16 penetrates through the cable tie 14, the outside of the thermal insulation material 10 is sleeved with a rubber layer 9, and the outside of the rubber layer 9 is sleeved with the first outer protection tube 1.

[0024] A partition plate 4 is fixedly connected to the outside of the first outer protection tube 1. A connecting block 5 is fixedly connected to the outside of the partition plate 4. A spring 6 is sleeved on the outside of the connecting block 5. The other end of the spring 6 abuts against a convex block 7. The convex block 7 and the connecting block 5 are fixedly connected, which is convenient for quick connection.

[0025] A circular hole groove is formed in the left side of the second outer protection tube 2. A buffer ring 8 is fitted inside the circular hole groove of the second outer protection tube 2. The convex block 7 is slidably connected inside the buffer ring 8, which increases the second protection tube 2 and is positioned through the buffer ring 8.

[0026] The first outer protection tube 1 is made of corrosion-resistant material, and the outside of the first outer protection tube 1 uses hydrophobic material to increase corrosion resistance.

[0027] The heat-insulating glass fiber 12 is slidably connected to the steel pipe body 13. The heat-insulating glass fiber 12 is made of heat-insulating material, and heat-insulating measures are carried out through the heat-insulating glass fiber 12.

[0028] Friction blocks 3 are arranged inside the rubber layer 9. There are several groups of friction blocks 3, and multiple groups of friction blocks are added to facilitate strengthening the friction force.

[0029] The tie strap 14 is set to abut against the outside of the heat-insulating material 10 and the silica gel fireproof cloth 11, and the silica gel fireproof cloth 11 is tied and constrained by the tie strap 14.

[0030] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thermal insulation steel pipe, comprising a first outer protective pipe (1), a second outer protective pipe (2) and a steel pipe body (13), characterized in that: The outer side of the steel pipe body (13) is knotted with a heat-insulating glass fiber (12), the outer side of the heat-insulating glass fiber (12) is knotted with a silicone fireproof cloth (11), the outer side of the silicone fireproof cloth (11) is knotted with a heat-insulating material (10), the outer side of the heat-insulating material (10) is knotted with a cable tie (14), the outer side of the cable tie (14) is slidably connected to a connecting buckle (15), the inner side of the connecting buckle (15) is rotatably connected to a rotating pin (16), the outer side of the rotating pin (16) passes through the cable tie (14), the outer side of the heat-insulating material (10) is knotted with a rubber layer (9), and the outer side of the rubber layer (9) is knotted with a first outer protective tube (1).

2. The insulated steel pipe according to claim 1, characterized in that: A partition plate (4) is fixedly connected to the outside of the first outer protective tube (1), a connecting block (5) is fixedly connected to the outside of the partition plate (4), a spring (6) is sleeved on the outside of the connecting block (5), a convex block (7) is tightly arranged at the other end of the spring (6), and the convex block (7) is fixedly connected to the connecting block (5).

3. The insulated steel pipe according to claim 2, characterized in that: A circular hole groove is provided on the left side of the second outer protective tube (2), a buffer ring (8) is embedded inside the circular hole groove of the second outer protective tube (2), and the protrusion (7) is slidably connected inside the buffer ring (8).

4. The insulated steel pipe according to claim 2, characterized in that: The first outer protective tube (1) is made of corrosion-resistant material, and the outer side of the first outer protective tube (1) is made of hydrophobic material.

5. The insulated steel pipe according to claim 1, characterized in that: The thermal insulation glass fiber (12) and the steel pipe body (13) are slidably connected, and the thermal insulation glass fiber (12) is configured as a thermal insulation material.

6. The insulated steel pipe according to claim 1, characterized in that: Friction blocks (3) are arranged inside the rubber layer (9), and the friction blocks (3) are arranged in a plurality of groups.

7. The insulated steel pipe according to claim 1, characterized in that: The tie (14) is arranged to be tightly pressed against the outer sides of the thermal insulation material (10) and the silica gel fireproof cloth (11).

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