CN217504478U - Integral fin type isothermal heating furnace tube - Google Patents

Abstract

The utility model discloses an integral fin type isothermal heating furnace tube, which comprises a heating pipe, the inner wall of the heating pipe is fixedly installed with inner fins, and the outer wall of the heating pipe is fixedly connected with a limiting column, and the outer wall of the limiting column is The base plate is sleeved, and the outer wall of the base plate is symmetrically fixed with outer fins, the outer wall of the upper end of the limiting column is sleeved with a screw cap, and the lower end surface of the screw cap is movably connected with a gasket, and the outer wall of the screw cap Set a limit mechanism. The integral fin type isothermal heating furnace tube facilitates the replacement of external fins, avoids the phenomenon that the use effect of the furnace tube is reduced after the external fins of the furnace tube are damaged, thereby improving the practicability of the furnace tube.

Description

An integral fin type isothermal heating furnace tube

technical field

The utility model relates to the technical field of heating furnace tubes, in particular to an integral fin type isothermal heating furnace tube.

Background technique

Tubular heating furnaces are commonly used in direct heating heating equipment in petrochemical and coal chemical industries. Its working method is to directly heat the heating furnace tube in the furnace through an external heat source, and at the same time, the heated material flows, absorbs and transfers in the heating furnace tube. Heat, has the advantages of long-term continuous work, uninterrupted operation and easy management, while the integral fin type isothermal heating furnace tube refers to the installation of fins on the inner and outer walls of the heating furnace tube, so that the heating area of the heating furnace tube and the heating The area is increased to ensure uniform heating.

However, the existing integral fin type isothermal heating furnace tube has the following problems when used:

Because the fins installed on the outer wall of the isothermal heating furnace tube are eroded by high temperature for a long time, loss will affect the heating effect of the furnace tube, so the furnace tube needs to be easily replaced with the external fins, and the existing integral fin type isothermal heating furnace tube It is not easy to replace the external fins, and it is easy to reduce the use effect of the external fins of the furnace tube after damage.

In view of the above problems, it is urgent to carry out innovative design on the basis of the original integral fin type isothermal heating furnace tube.

Utility model content

The purpose of the utility model is to provide an integral fin type isothermal heating furnace tube, in order to solve the above-mentioned background technology, it is proposed that the existing integral fin type isothermal heating furnace tube is not easy to replace the external fins, and the external fins of the furnace tube are easily damaged. The problem of the phenomenon that the effect of its use is reduced later.

In order to achieve the above purpose, the present utility model provides the following technical solutions: an integral fin type isothermal heating furnace tube, comprising a heating pipe, the inner wall of the heating pipe is fixedly installed with inner fins, and the outer wall of the heating pipe is fixedly connected with a limited position The outer wall of the limiting column is sleeved with a substrate, and the outer wall of the substrate is symmetrically fixed with an outer fin. spacer, and the outer wall of the screw cap is provided with a limiting mechanism.

Preferably, the inner fins are equiangularly distributed on the inner wall of the heating pipe, and the inner fins and the heating pipe are integrally arranged.

Preferably, the limiting posts are distributed in parallel at equal angles on the outer wall of the heating pipe, the limiting posts are slidably connected to the substrate, and the limiting posts are threadedly connected to the screw caps.

Preferably, the substrate and the heating pipe are attached and connected, and the substrate and the screw cap are respectively attached to the gasket.

Preferably, the limiting mechanism includes a pressing ring and a pressing rod, and the pressing ring is movably mounted on the outer wall of the screw cap, and the pressing rod is symmetrically fixed on the lower surface of the pressing ring.

Preferably, the extruding ring and the rotating cap form a rotating structure, and the extruding rod and the substrate under the extruding ring are slidably arranged.

Compared with the prior art, the beneficial effect of the utility model is: the integral fin type isothermal heating furnace tube is convenient to replace the external fins, avoids the phenomenon that the use effect of the external fins of the furnace tube is damaged and reduces, thereby improving the performance of the furnace tube. The practicality of the furnace tube;

Through the rotation of the screw cap, the screw cap moves along the limit post and disengages it, and drives the extruding ring to move, so that the extruding rod and the substrate are disengaged, and then the substrate and the heating pipe are disengaged by moving the outer fins, thereby The disassembly of the external fins of the heating furnace tube is completed, so that the heating furnace tube is convenient to replace the external fins, and the phenomenon that the use effect of the external fins of the furnace tube is damaged is avoided.

Description of drawings

Fig. 1 is the side sectional structure schematic diagram of the utility model;

2 is a schematic diagram of the front section of the utility model;

Fig. 3 is the enlarged structural schematic diagram at A in Fig. 1 of the utility model;

FIG. 4 is an enlarged schematic view of the structure at B in FIG. 2 of the present utility model.

In the figure: 1, heating pipe; 2, inner fin; 3, limit post; 4, substrate; 5, outer fin; 6, screw cap; 7, gasket; 8, limit mechanism; 801, extrusion pressure ring; 802, extrusion rod.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to 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 implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-4, the present utility model provides a technical solution: an integral fin type isothermal heating furnace tube, comprising a heating pipe 1, an inner fin 2, a limit post 3, a substrate 4, and an outer fin 5 , screw cap 6, gasket 7, limit mechanism 8, extrusion ring 801 and extrusion rod 802, the inner wall of the heating pipe 1 is fixedly installed with inner fins 2, and the outer wall of the heating pipe 1 is fixedly connected to the limiting column 3, And the outer wall of the limiting column 3 is sleeved with the substrate 4, and the outer wall of the substrate 4 is symmetrically fixed with the outer fins 5, the outer wall of the upper end of the limiting column 3 is sleeved with a screw cap 6, and the lower end surface of the screw cap 6 is sleeved. A spacer 7 is movably connected, and a limiting mechanism 8 is provided on the outer wall of the screw cap 6 .

The inner fins 2 are equiangularly distributed on the inner wall of the heating pipe 1, and the inner fins 2 and the heating pipe 1 are integrally arranged, which is convenient to increase the heating area of the heating pipe 1 through the inner fins 2, so that the material flowing inside the heating pipe 1 is heated Even and sufficient.

The limit posts 3 are distributed in parallel at equal angles on the outer wall of the heating pipe 1, and the limit posts 3 and the substrate 4 are slidably connected, and the limit posts 3 and the screw caps 6 are threadedly connected to facilitate the rotation of the screw caps 6 and the limit posts 3 after disengagement , the moving substrate 4 and the limiting column 3 are separated, and the outer fins 5 are replaced.

The substrate 4 and the heating pipe 1 are attached and connected, and the substrate 4 and the screw cap 6 are respectively attached to the gasket 7, so that the heating area of the heating pipe 1 can be raised through the outer fins 5 and the substrate 4, and the screw cap can be easily increased. 6. The substrate 4 is limited by the spacer 7 to improve the stability of the substrate 4 when it is installed outside the heating pipe 1 .

The limit mechanism 8 includes a squeeze ring 801 and a squeeze rod 802, and the squeeze ring 801 is movably installed on the outer wall of the screw cap 6, and the squeeze rod 802 is symmetrically fixed on the lower surface of the squeeze ring 801, which is convenient for passing the limit mechanism. 8. Improve the tightness of the bonding between the substrate 4 and the heating pipe 1 .

The extrusion ring 801 and the screw cap 6 form a rotating structure, and the extrusion rod 802 and the substrate 4 under the extrusion ring 801 are slidably arranged, so that the rotating screw cap 6 moves along the limit post 3, and drives the extrusion ring 801 toward the base. The sheet 4 is moved, so that the pressing rod 802 is inserted into the substrate 4 to limit the position of the substrate 4, so that the substrate 4 and the heating pipe 1 are in close contact.

Working principle: When using the integral fin type isothermal heating furnace tube, firstly, as shown in Figure 1-2, install the heating pipe 1 into the tubular heating furnace, and then the fuel in the furnace directly heats the heating pipe 1, and the external heating pipe 1 is heated. The fins 5 increase the heating area of the heating pipe 1, and the inner fins 2 increase the heating area of the heating pipe 1. When the material flows in the heating pipe 1, the heating pipe 1 heats it. At this time, the integrated inner fins 2 The material is heated evenly and the isothermal heating effect is guaranteed, as shown in Figure 1 and Figure 3-4, and when the outer fin 5 needs to be disassembled to maintain the heating pipe 1, the rotating cap 6 moves along the limit column 3 to disengage from it. At the same time, the screw cap 6 drives the extruding rod 802 to disengage from the substrate 4 through the extruding ring 801, and then moves the outer fin 5 to drive the substrate 4 to slide along the limiting column 3 and disengage the heating pipe 1 to complete the substrate 4 and the outer fin. The dismantling of the sheet 5, as shown in Figure 1-3, then set the new base sheet 4 to the outer wall of the limit post 3 and move the base sheet 4 to fit the heating pipe 1, and then set the gasket 7 to the limit Outside the column 3, then move the screw cap 6 to the upper end of the limit column 3, and at the same time align the extrusion rod 802 with the hole opened on the substrate 4, and then continue to rotate the screw cap 6 to squeeze the gasket 7 and the substrate 4. Closely fit, and the extrusion rod 802 is inserted into the substrate 4, so that the new substrate 4 and the heating pipe 1 are closely fitted, and the replacement of the outer fin 5 is completed, so as to avoid the use of the outer fin of the furnace tube after damage. phenomenon of reduced effect.

Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Within the spirit and principle of the present utility model, any modifications, equivalent replacements, improvements, etc. made shall be included within the protection scope of the present utility model.

Claims (6)

1. The utility model provides an integral fin formula isothermal heating boiler tube, includes heating pipeline (1), its characterized in that: inner wall fixed mounting of heating tube (1) has interior fin (2), and the spacing post of outer wall fixedly connected with (3) of heating tube (1) to the outer wall cover of spacing post (3) is equipped with substrate (4), and the outer wall symmetry of substrate (4) is fixed with outer fin (5) moreover, the upper end outer wall cover of spacing post (3) is equipped with and revolves cap (6), and revolves the lower terminal surface swing joint of cap (6) and have gasket (7) to the outer wall of revolving cap (6) is provided with stop gear (8).

2. The integrated fin-type isothermal heating furnace tube of claim 1, wherein: the inner fins (2) are distributed on the inner wall of the heating pipeline (1) at equal angles, and the inner fins (2) and the heating pipeline (1) are integrally arranged.

3. The integrated fin-type isothermal heating furnace tube of claim 1, wherein: the limiting columns (3) are distributed on the outer wall of the heating pipeline (1) in an equiangular parallel mode, the limiting columns (3) are connected with the substrate (4) in a sliding mode, and the limiting columns (3) are connected with the rotating caps (6) in a threaded mode.

4. The integrated fin isothermal heating furnace tube of claim 1, wherein: the substrate (4) is attached to the heating pipeline (1), and the substrate (4) and the screw cap (6) are respectively attached to the gasket (7).

5. The integrated fin-type isothermal heating furnace tube of claim 1, wherein: the limiting mechanism (8) comprises a squeezing ring (801) and a squeezing rod (802), the squeezing ring (801) is movably mounted on the outer wall of the screw cap (6), and the squeezing rod (802) is symmetrically fixed on the lower surface of the squeezing ring (801).

6. The integrated fin-type isothermal heating furnace tube of claim 5, wherein: the extrusion ring (801) and the screw cap (6) form a rotating structure, and the extrusion rod (802) below the extrusion ring (801) and the substrate (4) are arranged in a sliding manner.

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