Round steel pipe
By incorporating an insulation layer and a heating chamber inside the steel pipe, and using heating wires to heat the inner steel pipe, the problem of rapid heat loss during heating is solved, thus achieving energy savings and extending the heating effect.
Patent Information
- Application Number
- CN202520609750.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-04-02
AI Technical Summary
Existing steel pipes lose heat quickly when heated, resulting in energy waste.
A heat-insulating layer is installed inside the steel pipe, and a heating chamber and heating wire are installed inside the heat-insulating layer. The heating wire is used to heat the inner steel pipe, and the heat loss is reduced by the heat-insulating layer.
It effectively reduces heat loss, saves energy, and maintains heating effect for a longer period of time.
Smart Images
Figure CN223740243U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel pipes, and in particular to a circular steel pipe. Background Technology
[0002] Steel pipes are steel products with a hollow cross-section, whose length is much greater than its diameter or circumference. They are classified by cross-sectional shape into round, square, rectangular, and irregularly shaped steel pipes; by material into carbon structural steel pipes, low-alloy structural steel pipes, alloy steel pipes, and composite steel pipes; by application into pipes for transportation, engineering structures, thermal equipment, petrochemical industry, machinery manufacturing, geological drilling, and high-pressure equipment; and by manufacturing process into seamless steel pipes and welded steel pipes.
[0003] Currently, when using steel pipes, a heating coil is wrapped around the outside of the pipe to heat its interior. Because the heating coil is on the outside of the pipe, the heat dissipates quickly after heating, thus increasing energy consumption.
[0004] Therefore, it is necessary to invent a circular steel pipe to solve the above problems. Summary of the Invention
[0005] The purpose of this utility model is to provide a circular steel pipe to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a circular steel pipe, including an outer steel pipe, a filling insulation layer connected inside the outer steel pipe, an inner steel pipe connected inside the filling insulation layer, two sets of heating chambers opened inside the filling insulation layer, each set of heating chambers being provided with a heating wire, the heating wire being in contact with the inner steel pipe, and the length of the filling insulation layer being less than the lengths of the outer steel pipe and the inner steel pipe.
[0007] Preferably, the insulation layer is made of PVC insulation material.
[0008] Preferably, an annular sealing plate is provided on the outer side of the inner steel pipe, a first threaded hole is provided on the surface of the annular sealing plate, and a first bolt is threaded into the first threaded hole. A second threaded hole corresponding to the first bolt is provided on the front side of the insulation layer.
[0009] Preferably, the annular sealing plate is provided with sealing gaskets on both the inner and outer sides, and the sealing gaskets are made of rubber.
[0010] Preferably, the annular sealing plate has two grooved handles on its front side.
[0011] The technical effects and advantages of this utility model are as follows:
[0012] By installing an inner steel pipe inside an outer steel pipe and filling an insulation layer between the inner and outer steel pipes, two heating wires are passed through two sets of heating chambers respectively. The heating wires heat the inner steel pipe, while the insulation layer and outer steel pipe are installed on the outside of the inner steel pipe. This effectively prevents the heat generated by the heating wires from being lost. It can maintain heat for a longer time with only one heating, thus saving energy. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This utility model Figure 1 A schematic diagram of the structure viewed from below;
[0015] Figure 3 This utility model Figure 1 A schematic diagram of the AA-direction cross-section structure.
[0016] In the diagram: 1. Outer steel pipe; 2. Insulation layer; 3. Inner steel pipe; 4. Heating chamber; 5. Heating wire; 6. Annular sealing plate; 7. First bolt; 8. Groove handle. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] This utility model provides, for example Figure 1-3 The circular steel pipe shown includes an outer steel pipe 1, with a filling insulation layer 2 connected inside the outer steel pipe 1. An inner steel pipe 3 is connected inside the filling insulation layer 2. Two sets of heating chambers 4 are formed within the filling insulation layer 2, and each set of heating chambers 4 is equipped with a heating wire 5. The heating wire 5 is in contact with the inner steel pipe 3. The length of the filling insulation layer 2 is less than the lengths of the outer steel pipe 1 and the inner steel pipe 3. By placing the inner steel pipe 3 inside the outer steel pipe 1 and the filling insulation layer 2 between the inner and outer steel pipes, and passing the two heating wires 5 through the two sets of heating chambers 4 respectively, the inner steel pipe 3 is heated using the heating wires 5. The filling insulation layer 2 and the outer steel pipe 1 are located on the outer side of the inner steel pipe 3, effectively preventing heat loss from the heating wires 5. Heating only needs to be done once and can maintain heat for a relatively long time, saving energy.
[0019] The insulation layer 2 is made of PVC insulation material.
[0020] An annular sealing plate 6 is provided on the outer side of the inner steel pipe 3. A first threaded hole is provided on the surface of the annular sealing plate 6, and a first bolt 7 is threaded into the first threaded hole. A second threaded hole corresponding to the first bolt 7 is provided on the front side of the filling insulation layer 2, which can conveniently seal and shield the heating chamber 4 and the heating wire 5.
[0021] The annular sealing plate 6 is provided with sealing gaskets on both its inner and outer sides, and the sealing gaskets are made of rubber, which can increase the sealing performance between the annular sealing plate 6 and the outer steel pipe 1 and the inner steel pipe 3.
[0022] The annular sealing plate 6 has two grooved handles 8 on its front side, which can be easily pulled by pulling the grooved handles 8.
[0023] Working principle of this utility model:
[0024] By installing an inner steel pipe 3 inside the outer steel pipe 1 and a filling insulation layer 2 between the inner steel pipe 3 and the outer steel pipe 1, two heating wires 5 are passed through two sets of heating chambers 4 respectively, and the inner steel pipe 3 is heated by the heating wires 5. The filling insulation layer 2 and the outer steel pipe 1 are installed on the outside of the inner steel pipe 3, which can effectively prevent the heat generated by the heating wires 5 from being lost. It can maintain the heat for a long time with only one heating and save energy.
[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A circular steel pipe comprising an outer steel pipe, characterized by: The outer steel pipe is connected with a filling thermal layer, the filling thermal layer is connected with an inner steel pipe, two groups of heating cavities are arranged in the filling thermal layer, each group of the heating cavities is provided with heating wires, the heating wires are attached to the inner steel pipe, and the length of the filling thermal layer is less than the length of the outer steel pipe and the inner steel pipe.
2. A round steel pipe according to claim 1, characterized in that: The filling thermal layer is made of PVC thermal material.
3. A round steel pipe according to claim 1, characterized in that: The outer side of the inner steel pipe is provided with an annular sealing plate, the surface of the annular sealing plate is provided with a first threaded hole, a first bolt is threadedly connected in the first threaded hole, and the front side of the filling thermal layer is provided with a second threaded hole corresponding to the first bolt.
4. A round steel tube according to claim 3, characterized in that: The inner side and the outer side of the annular sealing plate are provided with sealing pads, and the specific material of the sealing pads is rubber.
5. A round steel pipe according to claim 3, characterized in that: The front side of the annular sealing plate is provided with two recessed groove handles.