Integrated well valve structure of directly-buried steam pipeline
By designing an integrated well valve structure for directly buried steam pipelines, the problems of inconvenient operation, harsh environment and potential safety hazards of steam pipeline valve wells are solved, and a small footprint, waterproof and rainproof, and temperature protection are achieved, which improves operational convenience and safety.
Patent Information
- Application Number
- CN202422550924.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-10-22
AI Technical Summary
Existing underground valve wells for steam pipelines have problems such as inconvenient operation, harsh environment, large space occupation, easy flooding and high operation risk when high-temperature steam leaks.
A directly buried steam pipeline integrated well valve structure was designed, including the main steam pipeline, horizontal and vertical protective covers, gate valve and transmission system, the operating hand wheel is on the ground, with waterproof, rainproof and temperature protection functions, bypass pipe and inspection port design.
It reduces the operating risks of operators in the event of high-temperature steam leakage, reduces the floor space, improves the environmental aesthetics and operational convenience, and avoids the dangers caused by water vapor evaporation and leakage.
Smart Images
Figure CN223318468U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of steam pipeline structures, and in particular relates to an integrated well valve structure for a directly buried steam pipeline. Background Art
[0002] Heating steam pipelines transport superheated steam. Most of the main pipelines are routed through green belts alongside urban motorway lanes and are laid directly underground. Conventional designs and implementations for the main shutoff and stop valves within these buried thermal steam pipelines typically employ underground enclosed valve wells, housing shutoff valves. Round manholes are installed on the top of the wells for easy access for temporary inspection and maintenance. Conventional underground valve wells for thermal pipelines have several drawbacks: First, to ensure internal operation, the wells require a large amount of space, which is particularly difficult to accommodate when large thermal pipelines are laid near urban roads and where numerous municipal pipelines are densely packed. Second, the low underground location of the wells makes them prone to flooding and submerging equipment. Third, due to the high operating temperatures of thermal pipelines and the enclosed wells, the operating environment is harsh when dry. However, when flooded, significant amounts of water vapor evaporate, impacting the surrounding environment. Fourth, in the event of a pipeline leak, a large amount of high-temperature steam fills the wells, making emergency valve operations impossible. Utility Model Content
[0003] In response to the above-mentioned technical problems, the utility model provides an integrated well valve structure for a directly buried steam pipeline to solve the problems of inconvenient operation and harsh operating environment of existing underground valves in steam pipelines. The integrated well valve structure for a directly buried steam pipeline greatly reduces the operating risks of operators in the event of steam leakage in the internal valve.
[0004] The utility model discloses an integrated well valve structure for a directly buried steam pipeline, comprising a main steam pipeline, a horizontal protective cover and a vertical protective cover. The main steam pipeline is horizontally extended, a gate valve is arranged on the main steam pipeline, a control shaft is arranged on the top of the gate valve, the control shaft is vertically arranged, a horizontally extending transmission shaft is arranged on the top of the control shaft, bevel gears are arranged between the transmission shaft and the control shaft for mutual meshing transmission, the transmission shaft is connected to an operating handwheel, the horizontal protective cover is sleeved on the outer periphery of the main steam pipeline, the horizontal protective cover is buried underground, the vertical protective cover is sleeved on the outer periphery of the control shaft, the vertical protective cover partially extends out of the ground, and an operating port is opened on the side wall of the vertical protective cover corresponding to the position of the operating handwheel.
[0005] Furthermore, the directly buried steam pipeline integrated well valve structure also includes a bypass pipe and a bypass protection cover. The bypass pipe is U-shaped and connected to both sides of the gate valve. The bypass protection cover is sleeved on the outer periphery of the bypass pipe. A bypass valve is provided on the bypass pipe, and the bypass protection cover is provided with an inspection pipe at the position of the bypass valve.
[0006] Furthermore, a first closed flange cover is provided on the top of the vertical protective cover, a second closed flange cover is provided on the operation port, and a third closed flange cover is provided on the top of the inspection pipe.
[0007] This directly buried steam pipeline integrated well valve structure can overcome the various disadvantages of conventional thermal pipeline underground valve wells: First, it occupies a small space, and the main steam pipeline is easy to arrange when it is laid around urban roads. Second, the horizontal protective cover and the vertical protective cover provide airtight protection for the internal gate valve, and both the upper exposed part and the underground part have reliable rain and waterproof functions. Third, it is integrated inside and outside, and it does not affect the environmental beauty when laid on the urban ground. Fourth, the horizontal protective cover and the vertical protective cover form a secondary temperature protection, avoiding the risk of burns caused by the high-temperature main steam pipeline to pedestrians. Fifth, the operating handwheel of the gate valve extends to the ground and is arranged on the side, which greatly reduces the operating risk of the operator in the event of steam leakage from the internal valve. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0009] Figure 1 This is a schematic diagram of the front structure of a directly buried steam pipeline integrated well valve structure;
[0010] Figure 2 This is a side structural diagram of a directly buried steam pipeline integrated well valve structure;
[0011] Figure 3 This is a schematic diagram of the top view of an integrated well valve structure for a directly buried steam pipeline. DETAILED DESCRIPTION
[0012] The utility model discloses an integrated well valve structure for a directly buried steam pipeline, which greatly reduces the operating risk for operators in the event of steam leakage from an internal valve.
[0013] The following is a clear and complete description of the technical solutions of the present invention in conjunction with the accompanying drawings. Obviously, the description is only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.
[0014] See also Figure 1 As shown, the utility model discloses an integrated well valve structure for a directly buried steam pipeline, comprising a main steam pipeline 7, a horizontal protective cover 1 and a vertical protective cover 3. The main steam pipeline 7 is horizontally extended, and a gate valve 2 is provided on the main steam pipeline 7. A control shaft 8 is provided on the top of the gate valve 2, and the control shaft 8 is vertically arranged. A horizontally extending transmission shaft 15 is provided on the top of the control shaft 8. Bevel gears are provided between the transmission shaft 15 and the control shaft 8 for mutual meshing transmission. The transmission shaft 15 is connected to an operating handwheel 5. The horizontal protective cover 1 is sleeved on the outer periphery of the main steam pipeline 7, the horizontal protective cover 1 is buried underground, and the vertical protective cover 3 is sleeved on the outer periphery of the control shaft 8. The vertical protective cover 3 partially extends out of the ground, and an operating port 6 is provided on the side wall of the vertical protective cover 3 corresponding to the position of the operating handwheel 5.
[0015] The directly buried steam pipeline integrated well valve structure also includes a bypass pipe 13 and a bypass protective cover 14. The bypass pipe 13 is U-shaped and connected to both sides of the gate valve 2. The bypass protective cover 14 is sleeved on the outer periphery of the bypass pipe 13. A bypass valve 12 is provided on the bypass pipe 13. The bypass protective cover 14 is provided with an inspection pipe 10 at the position of the bypass valve 12.
[0016] A first closed flange cover 9 is provided on the top of the vertical protective cover 3, a second closed flange cover 4 is provided on the operation port 6, and a third closed flange cover 11 is provided on the top of the inspection pipe 10. These can be opened for operation when needed. During on-site construction, the directly buried steam pipeline integrated well valve structure is half-buried in the ground. While connected to the directly buried main steam pipeline 7, the upper half is exposed to the outside, allowing operation to be performed at any time.
[0017] This directly buried steam pipeline integrated well valve structure can overcome the various disadvantages of conventional thermal pipeline underground valve wells: First, it occupies a small space, and the main steam pipeline 7 is easy to arrange when it is laid around urban roads. Second, the horizontal protective cover 1 and the vertical protective cover 3 provide airtight protection for the internal gate valve 2, and both the upper exposed part and the underground part have reliable rain and waterproof functions. Third, it is integrated inside and outside, and it does not affect the environmental beauty when laid on the urban ground. Fourth, the horizontal protective cover 1 and the vertical protective cover 3 form a secondary temperature protection, avoiding the risk of burns caused by the high-temperature main steam pipeline 7 to pedestrians. Fifth, the operating handwheel 5 of the gate valve 2 extends to the ground and is arranged on the side, which greatly reduces the operating risk of the operator in the event of steam leakage from the internal valve.
[0018] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.
Claims
1. A directly buried steam pipeline integrated well valve structure, characterized in that: It includes a main steam pipe, a horizontal protective cover and a vertical protective cover. The main steam pipe is extended horizontally, and a gate valve is provided on the main steam pipe. A control shaft is provided on the top of the gate valve, and the control shaft is vertically arranged. A horizontally extending transmission shaft is provided on the top of the control shaft. Bevel gears are provided between the transmission shaft and the control shaft for mutual meshing transmission. The transmission shaft is connected to an operating handwheel. The horizontal protective cover is sleeved on the outer periphery of the main steam pipe, and the horizontal protective cover is buried underground. The vertical protective cover is sleeved on the outer periphery of the control shaft. The vertical protective cover partially extends out of the ground, and an operating port is opened on the side wall of the vertical protective cover corresponding to the position of the operating handwheel.
2. The directly buried steam pipeline integrated well valve structure according to claim 1 is characterized in that: The directly buried steam pipeline integrated well valve structure also includes a bypass pipe and a bypass protective cover. The bypass pipe is U-shaped and connected to both sides of the gate valve. The bypass protective cover is sleeved on the outer periphery of the bypass pipe. A bypass valve is provided on the bypass pipe, and the bypass protective cover is provided with an inspection pipe at the position of the bypass valve.
3. The integrated well valve structure for a directly buried steam pipeline according to claim 2 is characterized in that: A first closed flange cover is provided on the top of the vertical protective cover, a second closed flange cover is provided on the operation port, and a third closed flange cover is provided on the top of the inspection pipe.