High-temperature environment self-adaptive sealing pipeline connecting device

By combining the mid-end bearing components, connecting flanges, and splice joints, the connection stability problem during high-temperature medium transportation in the magnesium smelting reduction section was solved, achieving stability and sealing of pipeline connections under high-temperature conditions, and improving the overall stability and oxidation resistance of the equipment.

CN223825837UActive Publication Date: 2026-01-23XINJIANG BANCHAO MAGNESIUM IND CO LTD
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Patent Information

Application Number
CN202520752149.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-01-23
Estimated Expiration
2035-04-21

AI Technical Summary

Technical Problem

In the magnesium smelting reduction section, when transporting high-temperature media, existing pipeline connectors are difficult to procure, difficult to replace, have high custom-made costs, and are prone to breakage due to loose fixing, which affects the stability of pipeline transportation, especially in high-temperature environments where sudden situations are likely to occur.

Method used

The system employs a combined structure of a mid-end load-bearing component, connecting flanges, and splice joints. Through welding, the corrugated pipe body triggers the radial expansion of the conical metal gasket during thermal expansion, creating a dynamic sealing enhancement effect. Combined with the design of the connecting flanges and splice joints, this achieves stable connection between the pipe and the flange.

Benefits of technology

It improves the stability of pipeline connections and overall equipment, ensures the stability of high-temperature media transportation, enhances the sealing and oxidation resistance of connections, and reduces the coefficient of friction.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high-temperature environment self-adaption sealing pipeline connecting device, belongs to the technical field of pipeline connecting pieces, and solves the problem that an existing pipeline connecting piece cannot bear high-temperature medium conveying and deforms, the connecting piece comprises a middle-end bearing piece, a connecting flange and a splicing connector, the connecting flange is installed at one end of the middle-end bearing piece, and the splicing connector is installed at the other end of the middle-end bearing piece. One end of the middle-end bearing part is provided with a connecting flange, the other end of the middle-end bearing part is provided with a splicing joint, the middle-end bearing part comprises butt joint ends and a corrugated pipe main body, the butt joint ends are respectively arranged between the connecting flange and the splicing joint, the number of the butt joint ends is two, and the corrugated pipe main body is arranged between the butt joint ends. The connecting flange and the splicing connector at the two ends can be rapidly connected, meanwhile, high temperature in a conveying medium is absorbed, the inner conical metal gasket is triggered to expand in the radial direction when the corrugated pipe body is heated to expand, and the dynamic sealing enhancement effect is formed.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to pipeline connecting piece technical field, concretely relates to high temperature environment self -adaptation sealed pipeline connecting device. BACKGROUND

[0002] Pipeline is connected with valve and so on pipe, pipe coupling and is used for conveying gas, liquid or fluid with solid particle device, is the key tool of conveying various medium at present, wherein pipeline and pipeline carry out butt joint, will use pipeline connecting piece to assist butt joint, guarantee the stability of pipeline and pipeline butt joint, pipeline connecting piece is divided into many according to the structure and shape of connecting pipeline, wherein the most commonly used is connecting flange.

[0003] In the vertical tank process of magnesium metal smelting reduction section, under the working condition that various hoses are usually connected from the pipeline outlet to the water jacket inlet in the current industry, there are problems such as difficult procurement (non-national standard), difficult replacement, high customization cost, loose fixation and easy collapse (connection pipe, pipeline outlet and water jacket inlet connection), especially when high-temperature medium is transported, sudden conditions are prone to occur, affecting the stability of the overall transportation of the pipeline, and the circulating water cannot play the role of controlling the temperature fluctuation in a relatively narrow range. UTILITY MODEL CONTENT

[0004] The purpose of this section is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] To solve the problems raised in the background art, the utility model adopts the following technical scheme.

[0006] A high-temperature environment self-adapting sealed pipeline connecting device, comprising a middle-end bearing, a connecting flange and a splicing joint, the middle-end bearing is provided with a connecting flange at one end, and a splicing joint is installed at the other end, and the middle-end bearing is connected with the connecting flange and the splicing joint by welding.

[0007] As a preferred technical scheme of the utility model, the middle-end bearing comprises a butt joint end and a corrugated pipe body, the connecting flange and the splicing joint are respectively provided with a butt joint end, two groups of butt joint ends are arranged, and a corrugated pipe body is installed between the butt joint ends.

[0008] As a preferred technical scheme of the utility model, the corrugated pipe body adopts a corrugated pipe pre-compression design, which triggers the radial expansion of the internal conical metal gasket when thermal expansion, forming a dynamic sealing enhancement effect.

[0009] As a preferred technical scheme of the utility model, the connecting flange comprises a connecting end, a flange plate and a slot, the middle end bearing piece is provided with the connecting end at one end, the slot is formed in the connecting end, the slot is in sliding connection with the outer wall of the connecting end, and the flange plate is installed at the end of the connecting end.

[0010] As a preferred technical scheme of the utility model, the flange plate is internally provided with a sealing washer for enhancing the sealing performance of the flange plate and the pipeline.

[0011] As a preferred technical scheme of the utility model, the splice joint comprises a quick connector and a quick joint, the middle end bearing piece is provided with the quick connector at one end, and the quick joint is in butt joint with the side surface of the quick connector.

[0012] As a preferred technical scheme of the utility model, the splice joint further comprises a plug-in joint, a butt block, a plug-in slot and a rotating slot, the plug-in joint is installed at the end of the quick joint, the butt block is symmetrically installed outside the plug-in joint, the plug-in slot is formed in the quick connector and used for plugging the butt block, and the rotating slot is formed in the quick connector and in communication with the plug-in slot.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] In the utility model, the middle end bearing piece is arranged, so that the connecting flange and the splice joint at two ends can be quickly connected, the high temperature in the conveying medium can be absorbed, the internal conical metal washer is expanded radially when the corrugated pipe body is heated and expanded, a dynamic sealing enhancement effect is formed, the connecting flange and the splice joint are arranged, the pipeline and the flange can be quickly butted, the stability of the overall connection of the pipeline and the connecting piece is ensured, the butt block is expanded in the rotating slot after the splice joint is heated and expanded, the stability of the structure is locked, and the stability of the whole equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a perspective view of the overall structure of the utility model.

[0016] Figure 2 It is a perspective view of the structure of the utility model after each part is split.

[0017] Figure 3 It is a perspective view of the structure of the middle end bearing piece in the utility model.

[0018] Figure 4 It is a structure schematic view of the connecting flange in the utility model.

[0019] Figure 5 It is a structure schematic view of the splice joint in the utility model.

[0020] The correspondence between the reference signs of the figures and the component names is as follows:

[0021] 1, middle end carrier; 11, butt joint end; 12, bellows main body; 2, connecting flange; 21, connecting end; 22, flange plate; 23, insertion slot; 3, splicing joint; 31, quick connector seat; 32, quick connector; 33, plug-in connector; 34, butt joint block; 35, insertion slot; 36, rotating slot. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0023] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can be practiced in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the spirit of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0024] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. In this specification, "in one embodiment" does not mean the same embodiment, nor is it an embodiment that is separate or alternative to other embodiments. The present application provides the following embodiments.

[0025] As shown by Figure 1 and Figure 2 , it is a structural schematic diagram of the high-temperature environment adaptive sealing pipeline connecting device in the embodiment, the connecting piece includes a middle end carrier 1, a connecting flange 2 and a splicing joint 3, the connecting flange 2 is installed at one end of the middle end carrier 1, the splicing joint 3 is installed at the other end of the middle end carrier 1, and the middle end carrier 1 is connected with the connecting flange 2 and the splicing joint 3 in a welding manner.

[0026] In use, the connecting piece is arranged as a whole at the connection of the pipeline and the pipeline, at this time the middle end carrier 1 absorbs the heat in the conveying medium, preventing the connecting piece from expanding and distorting due to heat, while the connecting flange 2 can provide a static sealing reference surface between the pipeline and the connecting piece, and the splicing joint 3 realizes axial locking compensation, the three components operate at the same time, and the stability of the connecting piece when conveying high-temperature medium is strengthened.

[0027] By the attached Figure 3As shown, it is the structural schematic view of the middle end carrier 1 in the embodiment, the middle end carrier 1 includes butt joint ends 11 and bellows bodies 12, the connecting flanges 2 and the splice joints 3 are respectively provided with the butt joint ends 11, the butt joint ends 11 are provided with two groups, the bellows bodies 12 are installed between the butt joint ends 11, the bellows bodies 12 adopt the bellows pre-compression design, and the internal conical metal gaskets are triggered to expand radially when thermal expansion, and a dynamic sealing enhancement effect is formed.

[0028] In use, the installation of the butt joint ends 11 enables the middle end carrier 1 to be quickly welded with the connecting flanges 2 and the splice joints 3 to form a completed connecting piece body, when conveying high-temperature medium, the bellows bodies 12 are affected by the high temperature of the internal conveying medium, the conical metal gaskets in the bellows bodies 12 are driven to expand radially, a dynamic sealing enhancement effect is formed, the stability of the middle end carrier 1 is ensured, and the middle end carrier 1 as a whole adopts 304 / 316 / 310S stainless steel welding, and the compensation amount is increased by 30%.

[0029] As shown in the accompanying drawings, Figure 4 As shown, it is the structural schematic view of the connecting flange 2 in the embodiment, the connecting flange 2 includes connecting ends 21, flange plates 22 and insertion grooves 23, one end of the middle end carrier 1 is provided with the connecting ends 21, the insertion grooves 23 are formed in the connecting ends 21 and are in sliding connection with the outer walls of the butt joint ends 11, the flange plates 22 are installed at the end portions of the connecting ends 21, and the flange plates 22 are provided with sealing gaskets for enhancing the sealing performance of the flange plates 22 and the pipelines.

[0030] In use, one group of the butt joint ends 11 is inserted into the insertion grooves 23, then the connecting ends 21 and the middle end carrier 1 are connected by welding to ensure the sealing effect of the connection part, then according to the operation of the flange plates 22, the flange plates 22 are quickly connected with the end portions of the pipelines to provide a static sealing reference surface, and the connecting flange 2 as a whole adopts 304 / 316 / 310S material and can resist high temperature of environmental radiation.

[0031] As shown in the accompanying drawings, Figure 5 As shown, it is the structural schematic view of the splice joint 3 in the embodiment, the splice joint 3 includes quick-connection seats 31, quick-connection heads 32, insertion heads 33, butt joint blocks 34, insertion grooves 35 and rotating grooves 36, one end of the middle end carrier 1 is provided with the quick-connection seats 31, the quick-connection heads 32 are in butt joint connection with the sides of the quick-connection seats 31, the insertion heads 33 are installed at the end portions of the quick-connection heads 32, the butt joint blocks 34 are symmetrically installed outside the insertion heads 33, the insertion grooves 35 are formed in the quick-connection seats 31 and are used for inserting the butt joint blocks 34, the rotating grooves 36 are formed in the quick-connection seats 31 and are in communication with the insertion grooves 35.

[0032] In use, the connection between the splice joint 3 and the middle end carrier 1 is completed by docking one end of the quick connector seat 31 with one set of docking ends 11, and then welding, and then inserting the quick connector 32 into the end of the quick connector seat 31, so that the docking block 34 enters the inside of the insertion slot 35, at this time, rotating the quick connector 32 as a whole, so that the docking block 34 rotates in the rotating slot 36, realizing the quick docking of the quick connector seat 31 and the quick connector 32, and when the quick connector seat 31 and the quick connector 32 are affected by the heat of the medium, the two expand, driving the two to dock more stably, wherein the whole splice joint 3 is made of 304 / 316 / 310S material, which enhances the oxidation resistance and reduces the friction coefficient.

[0033] The above is a further detailed description of the utility model in combination with the specific implementation, which cannot be considered as being limited to these descriptions only. For ordinary skilled persons in the technical field to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, which should be considered as belonging to the protection range determined by the claims submitted by the utility model.

Claims

1. A high-temperature environment adaptive sealing pipe connection device, characterized in that: It includes a middle bearing component (1), a connecting flange (2) and a splicing joint (3). The middle bearing component (1) has a connecting flange (2) installed at one end and a splicing joint (3) installed at the other end. The middle bearing component (1) is connected to the connecting flange (2) and the splicing joint (3) by welding.

2. The high-temperature environment adaptive sealing pipe connection device according to claim 1, characterized in that: The middle bearing component (1) includes a docking end (11) and a corrugated pipe body (12). The docking end (11) is installed between the connecting flange (2) and the splicing joint (3). There are two sets of docking ends (11), and the corrugated pipe body (12) is installed between the docking ends (11).

3. The high-temperature environment adaptive sealing pipe connection device according to claim 2, characterized in that: The bellows body (12) adopts a bellows pre-compression design, which triggers the radial expansion of the internal conical metal gasket during thermal expansion, forming a dynamic sealing enhancement effect.

4. The high-temperature environment adaptive sealing pipe connection device according to claim 1, characterized in that: The connecting flange (2) includes a connecting end (21), a flange (22) and a slot (23). One end of the middle bearing member (1) is provided with a connecting end (21). A slot (23) is provided in the connecting end (21). The slot (23) is slidably connected to the outer wall of the mating end (11). A flange (22) is installed at the end of the connecting end (21).

5. The high-temperature environment adaptive sealing pipe connection device according to claim 4, characterized in that: The flange (22) is provided with a sealing gasket to enhance the sealing performance between the flange (22) and the pipeline.

6. The high-temperature environment adaptive sealing pipe connection device according to claim 1, characterized in that: The splicing joint (3) includes a quick connector (31) and a quick connector (32). One end of the middle bearing member (1) is equipped with a quick connector (31), and the quick connector (32) is mated to the side of the quick connector (31).

7. The high-temperature environment adaptive sealing pipe connection device according to claim 6, characterized in that: The splicing joint (3) also includes a plug (33), a mating block (34), an insertion groove (35), and a rotating groove (36). The quick connector (32) is equipped with a plug (33) at its end. The plug (33) is symmetrically equipped with mating blocks (34) on its outside. The quick connector base (31) is provided with an insertion groove (35) for mating with the mating block (34). The quick connector base (31) is provided with a rotating groove (36), which is connected to the insertion groove (35).