Heat-resistant hose

Abstract

The utility model relates to the technical field of pipelines, in particular to a heat-resistant hose. The heat-resistant hose comprises a hose main body, wherein the hose main body comprises a high-temperature anti-adhesion hose, a high-temperature fire-resistant hose and a metal corrugated pipe which are sequentially arranged in a coating manner from inside to outside; a metal coil is arranged on the inner ring of the high-temperature fire-resistant hose in the circumferential direction, and the metal coil is used for making contact with leaked molten aluminum to generate a short-circuit signal after the high-temperature anti-adhesion hose and the high-temperature fire-resistant hose are damaged; and the metal coil is in signal connection with control equipment and is used for sending a signal to the control equipment after short circuit. The metal coil in signal connection with the control equipment is arranged in the high-temperature fire-resistant hose, so that a short-circuit signal can be sent to the control equipment in time after the high-temperature anti-adhesion hose and the high-temperature fire-resistant hose are damaged, solving measures can be taken in time, and the problems that in the prior art, a high-temperature-resistant hose cannot transmit a damage signal in time, and damage is caused are effectively solved. And safety accidents are easily caused.

Description

Technical Field

[0001] This utility model relates to the field of pipeline technology, and in particular to a heat-resistant flexible hose. Background Technology

[0002] High-temperature resistant hoses are flexible pipes that can maintain structural integrity and functionality under extreme high-temperature conditions. They are usually made of special synthetic materials or metal braided layers combined with inner lining materials to ensure that they do not deform, melt, or lose their sealing performance in high-temperature environments.

[0003] For example, patent document CN220016399U discloses a high-temperature resistant hydraulic hose, which includes a hose body and a fitting. The hose body includes a hose, a heat insulation layer, a high-temperature protection layer, a fireproof layer, and a wear-resistant layer, which are wrapped from the inside out. The fitting includes a connecting pipe, a ball-head seal, and a fixing cap. One end of the connecting pipe is connected to the coaxial ball-head seal. A through hole is provided along the axial direction of the connecting pipe and the ball-head seal. The fixing cap includes a retaining ring and an inner nut. The retaining ring is slidably sleeved on the connecting pipe. The inner nut is fixedly connected to the side of the retaining ring near the ball-head seal. The inner nut is coaxially arranged with the retaining ring. Both ends of the hose are wrapped around the connecting pipe of the fitting. The inner wall of the hose is adapted to the outer diameter of the connecting pipe of the fitting. Metal clamps are pressed onto the outer sides of the two ends of the wear-resistant layer at the corresponding connecting pipes.

[0004] It can be seen that the above-mentioned hose body improves its pressure resistance, high temperature resistance, and wear resistance by setting a hose, heat insulation layer, high temperature protection layer, fireproof layer, and wear-resistant layer that are wrapped from the inside out. However, the following problems still exist in its use: 1. High temperature resistant hoses will inevitably be damaged during use. The above-mentioned hose has a single function and cannot transmit a damage signal in time after damage occurs, so that the staff cannot detect the damage of the high temperature resistant hose in time, which can lead to safety accidents and cause significant economic losses to the company; 2. The above-mentioned hose is used to transport hydraulic oil. The temperature of hydraulic oil is not high. The above-mentioned hose can only prevent damage to the pipeline caused by accidental splashes of high temperature objects and cannot be used to transport high temperature liquids such as molten aluminum. Utility Model Content

[0005] This invention provides a heat-resistant hose to solve the technical problem that existing high-temperature hoses cannot transmit damage signals in a timely manner, which can easily lead to safety accidents.

[0006] To solve the above problems, the heat-resistant hose provided by this utility model adopts the following technical solution:

[0007] A heat-resistant hose, comprising:

[0008] The hose body comprises, from the inside out, a high-temperature anti-adhesion hose, a high-temperature fire-resistant hose, and a metal corrugated pipe;

[0009] The high-temperature refractory hose has a metal coil arranged circumferentially in its inner ring. The metal coil is used to generate a short circuit signal when it comes into contact with the leaked aluminum liquid after the high-temperature anti-adhesion hose and the high-temperature refractory hose are damaged.

[0010] The metal coil is connected to the control device for signal transmission to the control device after it is short-circuited.

[0011] The beneficial effects of the heat-resistant hose provided by this utility model are:

[0012] 1. By setting up a high-temperature anti-adhesion hose, it is possible to effectively prevent liquids such as high-temperature molten aluminum from adhering to the inner wall of the hose, thus preventing blockage and ensuring the normal delivery of molten aluminum.

[0013] 2. By installing a metal coil connected to the control equipment signal inside the high-temperature refractory hose, a short-circuit signal can be generated when the high-temperature anti-adhesion hose and the high-temperature refractory pipe come into contact with the leaking aluminum liquid after damage. The short-circuit signal is transmitted to the control equipment, which then controls the boat-shaped chute to tilt backward, allowing the aluminum liquid in the boat-shaped chute to flow into the residual aluminum box, thereby ensuring the safety of personnel and equipment and preventing safety accidents.

[0014] Through the above-mentioned design, this utility model has improved and upgraded the existing high-temperature resistant hose, effectively solving the technical problem that the existing high-temperature resistant hose cannot transmit damage signals in a timely manner, which is prone to causing safety accidents.

[0015] Furthermore, the high-temperature fire-resistant hose comprises three layers of fire-resistant fiber cloth, with the metal coil located between the innermost two layers of fire-resistant fiber cloth.

[0016] Furthermore, the high-temperature refractory fiber cloth is fixed to the high-temperature anti-adhesion hose by metal wires or metal rings.

[0017] Furthermore, the high-temperature refractory hose is a hose made of ceramic fiber soft paper.

[0018] Furthermore, the ceramic fiber soft paper is coated with a heat-resistant coating on the side facing away from the high-temperature anti-adhesion hose.

[0019] Furthermore, the heat-resistant coating is a boron nitride coating.

[0020] Furthermore, connectors are provided at both ends of the hose body along its length.

[0021] Furthermore, the connecting component is a flange. Attached Figure Description

[0022] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0023] Figure 1 A schematic diagram of the structure of the heat-resistant hose provided by this utility model;

[0024] Figure 2 This is a cross-sectional view of the heat-resistant hose provided by this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Hose body; 2. Metal bellows; 3. Metal coil; 4. Fire-resistant fiber cloth; 5. Ceramic fiber paper; 6. Boron nitride coating; 7. Flange. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] It should be noted that the main concept of the heat-resistant hose provided by this utility model is as follows: by setting up a heat-resistant hose that includes a high-temperature anti-adhesion hose, a high-temperature refractory hose, and a metal corrugated pipe from the inside out, and embedding a metal coil inside the high-temperature refractory hose, the high-temperature anti-adhesion hose comes into contact with the molten aluminum, which can effectively prevent the molten aluminum from adhering to the inner wall of the pipe, ensuring the normal transport of molten aluminum. When the high-temperature anti-adhesion hose and the high-temperature refractory pipe are damaged, the leaked molten aluminum will short-circuit when it comes into contact with the metal coil, and transmit the short-circuit signal to the control equipment. The control equipment will then control the mechanism connected to the heat-resistant hose to take emergency measures to stop the molten aluminum from continuing to flow into the heat-resistant hose, thereby ensuring the safety of personnel and equipment and avoiding safety accidents.

[0029] After introducing the basic principles of this utility model, various non-limiting embodiments of this utility model are described in detail below. Any quantity of elements in the accompanying drawings is for illustrative purposes only and not for limitation, and any naming is for distinction only and has no limiting meaning.

[0030] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0031] Example 1 of the heat-resistant hose provided by this utility model:

[0032] like Figure 1 and Figure 2 As shown, the heat-resistant hose includes a hose body 1, which includes a high-temperature anti-adhesion hose, a high-temperature fire-resistant hose, and a metal corrugated pipe 2 arranged sequentially from the inside to the outside. The high-temperature fire-resistant hose has a built-in metal coil 3, which is connected to the control equipment for signal connection.

[0033] Regarding high-temperature anti-adhesion hoses: High-temperature anti-adhesion hoses are made of ceramic fiber soft paper 5. Ceramic fiber soft paper 5 is a lightweight refractory material made primarily from aluminosilicate ceramic fiber cotton through a wet molding process. Ceramic fiber soft paper 5 has low heat capacity and thermal conductivity, effectively preventing or slowing down heat transfer. It also exhibits excellent thermal insulation performance in high-temperature environments, and possesses good thermal stability and thermal shock resistance, remaining stable even under rapid temperature changes. Furthermore, ceramic fiber soft paper 5 is asbestos-free, has uniform fiber distribution, and possesses high strength and elasticity, resulting in good durability.

[0034] Regarding the installation of the high-temperature refractory hose and the metal coil 3 within it: The high-temperature refractory hose comprises three layers of refractory fiber cloth 4. The metal coil 3 is positioned between the innermost two layers of refractory fiber cloth 4 and surrounds the circumference of the high-temperature refractory hose. The refractory fiber cloth 4 possesses excellent high-temperature resistance, with a continuous operating temperature up to 1000℃ and a short-term operating temperature even up to 1260℃. This characteristic allows it to remain stable in high-temperature environments, resisting combustion or melting. Furthermore, the refractory fiber cloth 4 has a low thermal conductivity and good high-temperature insulation properties, effectively preventing heat transfer and protecting the surrounding environment and equipment from high temperatures. It also effectively isolates current and heat, ensuring the safety of equipment and personnel.

[0035] To ensure the stability of the metal coil 3 in the high-temperature refractory hose, a metal wire or metal ring is provided on the outside of the refractory fiber cloth 4 in the middle layer to fix it to the high-temperature anti-adhesion hose, thereby achieving stable installation of the metal coil 3 in the high-temperature refractory pipe.

[0036] Specifically, the metal wire is iron wire, and the metal ring is an iron ring.

[0037] In addition, the inner side of the ceramic fiber paper 5, that is, the side opposite to the fire-resistant fiber cloth 4, is sprayed with a boron nitride coating 6 as a fireproof coating, and flanges 7 are provided at both ends of the hose body 1 along its length as connectors so as to connect with other structures.

[0038] The working principle of the heat-resistant hose provided by this utility model is as follows: First, the two ends of the hose body 1 are connected to the boat-shaped chute and the common chute respectively through the flange 7. Then, the aluminum liquid conveying equipment is started to convey the aluminum liquid. During the aluminum liquid conveying process, the ceramic fiber soft paper 5 coated with boron nitride coating 6 is in direct contact with the aluminum liquid. When the ceramic fiber hose and the innermost refractory fiber cloth 4 are damaged, the aluminum liquid leaks out from the damaged point and comes into contact with the metal coil 3 at the damaged point, causing the metal coil 3 to short-circuit and generate a short-circuit signal. The short-circuit signal is transmitted to the control equipment. After receiving the short-circuit signal, the control equipment controls the boat-shaped chute to tilt backward, so that the aluminum liquid in the boat-shaped chute flows into the residual aluminum box, avoiding the situation where the aluminum liquid continues to flow into the heat-resistant hose, thereby ensuring the safety of the staff and equipment.

[0039] Example 2 of the heat-resistant hose provided by this utility model:

[0040] Its main difference from Example 1 is:

[0041] In Example 1, the high-temperature fire-resistant hose comprises three layers of fire-resistant fiber cloth.

[0042] In this embodiment, the high-temperature fire-resistant hose includes two or three or more layers of fire-resistant fiber cloth.

[0043] Based on the above description in this specification, those skilled in the art will also understand that the following terms used, such as "upper," "lower," "front," "rear," "left," "right," "width," "horizontal," "top," "bottom," "inner," and "outer," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0044] In addition, in the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.

Claims

1. A heat-resistant flexible hose, characterized in that, include: The hose body comprises, from the inside out, a high-temperature anti-adhesion hose, a high-temperature fire-resistant hose, and a metal corrugated pipe; The high-temperature refractory hose has a metal coil arranged circumferentially in its inner ring. The metal coil is used to generate a short circuit signal when it comes into contact with the leaked aluminum liquid after the high-temperature anti-adhesion hose and the high-temperature refractory hose are damaged. The metal coil is connected to the control device signal for sending a signal to the control device after it is short-circuited; The high-temperature fire-resistant hose comprises three layers of fire-resistant fiber cloth, with the metal coil located between the innermost two layers of fire-resistant fiber cloth.

2. The heat-resistant flexible hose according to claim 1, characterized in that, The refractory fiber cloth is fixed to the high-temperature anti-adhesion hose by metal wires or metal rings.

3. The heat-resistant flexible hose according to claim 1 or 2, characterized in that, The high-temperature refractory hose is a hose made of ceramic fiber soft paper.

4. The heat-resistant flexible hose according to claim 3, characterized in that, The ceramic fiber soft paper is coated with a heat-resistant coating on the side facing away from the high-temperature anti-adhesion hose.

5. The heat-resistant flexible hose according to claim 4, characterized in that, The heat-resistant coating is a boron nitride coating.

6. The heat-resistant flexible hose according to claim 1 or 2, characterized in that, Both ends of the hose body along its length are provided with connectors.

7. The heat-resistant flexible hose according to claim 6, characterized in that, The connecting component is a flange.

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