A vertically expandable heating main device

Abstract

The utility model discloses a vertical heat supply main pipe device that can expand capacity relates to central heating equipment technical field. The device includes by multiple three -way pipe fittings sequentially connected constitute vertical steam main pipe, be located in the import isolation valve of main pipe import end and by each three -way pipe fittings top side mouth formation's user branch pipe interface, and each interface department all is equipped with user isolation valve. This modular design makes the main pipe can through superimposed three -way pipe fittings easily expand user quantity, and each user can be isolated and overhauled independently, effectively solved the poor expansibility of traditional welding type main pipe, the inconvenient maintenance problem. The utility model has the advantages of simple structure, expansion flexible, reliable operation, convenient maintenance.

Description

Technical Field

[0001] This utility model relates to the field of centralized heating equipment technology, and more specifically, to an expandable vertical heating main pipe device. Background Technology

[0002] In centralized heating systems at regional energy stations or industrial parks, the steam header serves as the core transmission line, undertaking the crucial task of distributing steam to various users. Traditional steam header systems typically employ a fixed design. This one-off design approach has revealed numerous insurmountable drawbacks in actual operation. Firstly, its scalability is extremely poor. When the park needs to add new users, hot work welding must be performed on the existing main pipe, or a new section of pipe with new user interfaces must be laid. This construction process is complex, time-consuming, costly, and poses safety hazards. Secondly, regarding user isolation, traditional designs often only install valves on branch pipes, while the main pipe itself lacks effective segmented isolation measures. This means that if a user's branch pipe needs maintenance or leaks, the entire main pipe system may be forced to shut down, severely impacting the normal heating of other users, resulting in insufficient reliability and flexibility of the system. Furthermore, the rigid, integrally welded structure cannot flexibly adapt to the dynamic needs of future changes in the number of users, requiring excessive investment in the early planning and construction stages or facing significant difficulties in later modifications.

[0003] Therefore, there is an urgent need in this field for a new type of main pipe device structure that can be flexibly expanded and is easy to maintain in separate units, in order to overcome the aforementioned inherent defects. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, the purpose of this utility model is to provide an expandable vertical heating header device, comprising: The steam header is composed of multiple tee fittings connected to multiple connecting pipes in sequence, forming a vertically arranged main channel; An inlet isolation valve is provided at the inlet end of the steam header; Multiple user branch pipe interfaces, with each side opening of the tee fitting constituting one user branch pipe interface; Multiple user isolation valves are provided, with one user isolation valve installed at each user branch pipe interface.

[0005] As a preferred embodiment, the plurality of tee fittings are sequentially and coaxially connected to the connecting pipe via flanges.

[0006] As a preferred embodiment, a sealing gasket is provided at the flange connection of the tee fitting between adjacent connecting pipes.

[0007] As a preferred embodiment, the user isolation valve is a gate valve.

[0008] As a preferred embodiment, the upper port of the tee fitting at the very top of the steam header is sealed with a pipe cap, or it is extended by connecting to another tee fitting.

[0009] As a preferred embodiment, the pipe cap and the tee fitting are connected by a flange.

[0010] As a preferred embodiment, the system also includes a main pipe support structure, which comprises multiple support pipes fixedly connected to the connecting pipe body and a fixing member disposed at the end of the support pipe away from the connecting pipe.

[0011] As a preferred embodiment, a drain valve is provided at the lower end of the connecting pipe at the bottom of the steam header.

[0012] As a preferred embodiment, the tee fitting is an equal diameter tee fitting.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model achieves flexible and non-destructive expansion of the number of users by designing the steam main pipe as a vertical structure composed of modular connections of standard tee fittings. At the same time, each user branch pipe is equipped with an independent isolation valve, so that the operation of other parts of the device is not affected when a single user is under maintenance or malfunctions. This greatly improves the expandability, isolation and maintenance convenience of the device, and significantly reduces the difficulty and cost of later modification. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the mating structure of the tee fitting and connecting pipe of this utility model. Detailed Implementation

[0015] The present invention will be further described below with reference to specific embodiments.

[0016] An expandable vertical heating header device, comprising: Steam header 1 is composed of multiple tee fittings 11 connected to multiple connecting pipes 12 in sequence, forming a vertically arranged main channel; Inlet isolation valve 2 is installed at the inlet end of steam header 1; Multiple user branch pipe interfaces 3, each tee fitting 11 has a side port forming a user branch pipe interface 3; Multiple user isolation valves 4, with one user isolation valve 4 installed at each user branch pipe interface 3; In operation, steam is introduced into the steam header 1 through the inlet isolation valve 2. The steam is then transported upwards along the steam header 1, which consists of multiple tee fittings 11 and connecting pipes 12. When steam needs to be supplied to a user's branch pipe, the corresponding user isolation valve 4 is opened, and steam can then enter the corresponding user's branch pipe through the user's branch pipe interface 3, thus providing the required steam to that user. If a user needs to repair the steam pipe, simply closing the corresponding user isolation valve 4 will cut off the steam supply to that user's branch pipe without affecting the normal steam use of other users. This design allows the entire heating header system to flexibly adjust the steam supply according to the needs of different users. Furthermore, since the steam header 1 consists of multiple tee fittings 11 and connecting pipes 12, if the number of users needs to be increased later, simply adding tee fittings 11 and connecting pipes 12 at appropriate locations and correspondingly setting up user branch pipe interfaces 3 and user isolation valves 4 can expand the system's capacity to meet the steam needs of more users without requiring large-scale modifications. Installation and maintenance are convenient, saving construction time and costs.

[0017] In a preferred embodiment, multiple tee fittings 11 are coaxially connected to connecting pipes 12 sequentially via flanges 13. This not only ensures the stability and sealing of steam during transmission, effectively reducing the risk of steam leakage, but also facilitates subsequent disassembly and maintenance. When a tee fitting 11 or connecting pipe 12 malfunctions, the flange 13 can be quickly replaced without requiring large-scale disassembly of the entire steam header 1, thereby greatly improving maintenance efficiency and reducing maintenance costs. Simultaneously, it makes the entire heating header system more flexible during installation, allowing the layout of the tee fittings 11 and connecting pipes 12 to be adjusted according to actual site conditions to adapt to different installation environments.

[0018] In a preferred embodiment, a sealing gasket 14 is provided at the flange 13 connection of the tee fitting 11 between adjacent connecting pipes 12; The sealing gasket 14 is made of high-temperature and corrosion-resistant high-quality materials, effectively withstanding the high temperature and high pressure environment during steam transportation, further enhancing the sealing performance of the steam header 1 connection. Even after long-term operation, the sealing gasket 14 maintains good elasticity and sealing effect, greatly reducing the possibility of steam leakage and ensuring the safe and stable operation of the heating header system. Moreover, this sealing gasket 14 is easy to replace; when wear or aging occurs, it can be quickly replaced without affecting the normal use of the entire heating header system.

[0019] In a preferred embodiment, the user isolation valve 4 is a gate valve. Alternatively, it can be a globe valve or a ball valve. These types of valves all offer good sealing performance and operational flexibility. Gate valves have a simple structure, low fluid resistance, and require little effort to open and close, making them suitable for fully open or fully closed heating pipelines and effectively cutting off media flow. Globe valves offer good sealing performance and allow for control of media flow and pressure by adjusting the opening degree, meeting the precise adjustment requirements for steam flow under different operating conditions. Ball valves feature rapid opening and closing, convenient operation, low fluid resistance, reliable sealing, and the ability to adapt to frequent opening and closing operations, ensuring stable steam delivery during heating and further improving the reliability and stability of the heating main pipeline system. Each of these valves has its own characteristics and can be selected according to actual conditions.

[0020] In a preferred embodiment, the upper end of the tee fitting 11 at the very top of the steam header 1 is sealed with a cap 5, or it can be extended by connecting to another tee fitting 11. Sealing with a cap 5 is simple and direct, effectively preventing steam leakage and external impurities from entering the steam header 1, ensuring the cleanliness and stable operation of the device. Extending by connecting to another tee fitting 11 allows for flexible addition of heating branches according to actual heating needs, expanding the heating range, meeting the heating needs of more users, and improving the adaptability and scalability of the entire heating device.

[0021] In a preferred embodiment, the cap 5 and the tee fitting 11 are connected by a flange 13.

[0022] As a preferred embodiment, it also includes a main pipe support structure 6, which includes a plurality of support pipes 61 fixedly connected to the body of the connecting pipe 12 and a fixing member 62 disposed at the end of the support pipe 61 away from the connecting pipe 12. Multiple support pipes 61 are evenly distributed on the body of the connecting pipe 12, providing stable and reliable support for the steam header 1. This prevents the steam header 1 from sagging or deforming due to its own weight or external factors, ensuring the stability and safety of the steam header 1 during operation. The fasteners 62 are used to securely fix the support pipes 61 to their respective installation positions, such as building walls or ground foundations. Their reasonable design and firm fixation allow them to adapt to different installation environments and conditions, further enhancing the overall stability and reliability of the header support structure 6.

[0023] In a preferred embodiment, a drain valve 7 is provided at the lower port of the connecting pipe 12 at the bottom of the steam header 1; After the heating device has been running for a period of time, some impurities and dirt will accumulate inside the steam header 1. By opening the drain valve 7, these impurities and dirt can be discharged in time, preventing them from accumulating in the pipe and affecting the steam flow and heating effect, ensuring the normal operation of the heating device, and also helping to extend the service life of the steam header 1 and related equipment.

[0024] In a preferred embodiment, the tee fitting 11 is an equal-diameter tee fitting, which ensures uniform flow and stable pressure when steam is split at the tee fitting 11, avoiding pressure fluctuations and uneven flow caused by changes in pipe diameter, thereby ensuring the consistency and stability of the heating effect of each branch pipeline of the heating device. At the same time, the equal-diameter tee fitting also has the advantages of simple structure, convenient processing, and low cost, which can reduce the construction and maintenance costs of the entire heating device.

[0025] The contents not described in detail in this specification are existing technologies known to those skilled in the art, and their specifications and models can be selected according to actual conditions.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical embodiments 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 invention should be included within the protection scope of the present invention.

Claims

1. An expandable vertical heating main pipe device, characterized in that, include: Steam header (1), which is composed of multiple tee fittings (11) connected to multiple connecting pipes (12) in sequence to form a vertically arranged main channel; An inlet isolation valve (2) is provided at the inlet end of the steam header (1); Multiple user branch pipe interfaces (3), each of the side ports of the tee fitting (11) constitutes one user branch pipe interface (3). Multiple user isolation valves (4), one of the user isolation valves (4) is provided at each of the user branch pipe interfaces (3).

2. The expandable vertical heating main pipe device according to claim 1, characterized in that, The plurality of tee fittings (11) are coaxially connected to the connecting pipe (12) in sequence via flanges (13).

3. The expandable vertical heating main pipe device according to claim 2, characterized in that, A sealing gasket (14) is provided at the flange (13) connection of the tee fitting (11) between adjacent connecting pipes (12).

4. The expandable vertical heating main pipe device according to claim 1, characterized in that, The user isolation valve (4) is a gate valve.

5. The expandable vertical heating main pipe device according to claim 1, characterized in that, The upper port of the tee fitting (11) at the top of the steam header (1) is closed by a cap (5), or it can be extended by another tee fitting (11).

6. The expandable vertical heating main pipe device according to claim 5, characterized in that, The cap (5) and the tee fitting (11) are connected by a flange (13).

7. The expandable vertical heating main pipe device according to claim 1, characterized in that, It also includes a main pipe support structure (6), which includes multiple support pipes (61) fixedly connected to the body of the connecting pipe (12) and a fastener (62) disposed at the end of the support pipe (61) away from the connecting pipe (12).

8. The expandable vertical heating main pipe device according to claim 1, characterized in that, A drain valve (7) is provided at the lower port of the connecting pipe (12) at the bottom of the steam header (1).

9. The expandable vertical heating main pipe device according to claim 1, characterized in that, The tee fitting (11) is an equal diameter tee fitting.

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