Steam conveying pipeline for power plant

Abstract

The utility model relates to the technical field of conveying pipelines, and discloses a steam conveying pipeline for a power plant, which comprises a main pipe, a bearing groove is arranged in the main pipe, the inner wall of the bearing groove is fixedly connected with uniformly distributed telescopic rods, and the outer rings of the telescopic rods are sleeved with damping springs. Transporting main plates are fixedly connected to one ends of the telescopic rods, transporting auxiliary plates are slidably connected between the transporting main plates in a penetrating mode, bearing blocks are fixedly connected to the two sides of one end of the outer wall of the main pipe, sliding grooves are formed in one sides of the bearing blocks, and fixing blocks are arranged at the two ends of the main pipe. And the outer walls of the fixing blocks penetrate through and are slidably connected with limiting rods which are uniformly distributed. According to the utility model, through the linkage pipeline among the telescopic rod, the damping spring, the transportation main plate, the transportation auxiliary plate and the bearing groove, expansion and contraction caused by temperature change can be adapted, stress concentration caused by temperature change is reduced, and the service life of the pipeline is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a conveying pipeline technical field, concretely is a kind of steam conveying pipeline for power plant. BACKGROUND

[0002] Conveying pipeline is a kind of closed pipeline system for efficiently transporting liquid, gas or solid particle mixture, widely used in petroleum, natural gas, chemical industry, water conservancy and municipal engineering and other fields, its core function is to realize the long-distance, large-flow conveying of medium by pressure difference or pumping equipment, with the characteristics of safe sealing, reducing loss, adapting to complex terrain (such as crossing river, mountain) etc., modern pipeline usually adopts steel, polyethylene and other corrosion-resistant materials, and is equipped with intelligent monitoring system to detect leakage and pressure change in real time, is the key infrastructure of energy and resource transportation, plays an irreplaceable role in guaranteeing industrial production and people's livelihood demand.

[0003] Power plant steam conveying pipeline is a kind of key equipment specially used for high-temperature and high-pressure steam transmission, mainly used for conveying superheated steam generated by boiler to steam turbine or other heat exchange equipment, such pipeline usually adopts high-temperature and high-pressure alloy steel material (such as P91, P22 etc.), and is equipped with insulation layer to reduce heat loss, to ensure safe operation, so as to guarantee the efficient and stable power generation of power plant, its performance directly affects the thermal energy utilization efficiency and operation safety of power plant.

[0004] However, the existing steam conveying pipeline for power plant, in which the traditional fixed connection mode, the pipeline cannot effectively stretch when the temperature changes, resulting in stress concentration and increasing the risk of pipeline rupture, and the vibration generated during the operation of the pipeline cannot be effectively absorbed, resulting in damage to the pipeline and its connecting parts, increasing the maintenance cost, at the same time, the pressure distribution in the pipeline is uneven, resulting in excessive local pressure and increasing the risk of pipeline deformation or rupture, to solve the above problems, a steam conveying pipeline for power plant is proposed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a steam conveying pipeline for power plant, which solves the problems of automatic adjustment according to temperature and pressure, ensuring the stress stability of the pipeline and not having certain buffering capacity in the background art.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a steam delivery pipeline for power plant, including main pipe, the inside of main pipe is equipped with bearing groove, the inner wall of bearing groove is fixedly connected with evenly distributed telescopic rod, the outer ring of telescopic rod all is equipped with damping spring, one end of telescopic rod is fixedly connected with transport main board, the transport main board all is penetrated and is connected with transport sub -board between sliding, the both sides of outer wall one end of main pipe all are fixedly connected with bearing block, the one side of bearing block all is equipped with sliding groove, both ends of main pipe all are provided with fixed block, the outer wall of fixed block all is penetrated and is connected with evenly distributed limit rod sliding, the outer ring of limit rod all is equipped with first spring, one end of fixed block all is provided with dismounting assembly.

[0007] By adopting the above technical scheme, through the linkage between the above structures, when the temperature is too high and the pressure increases, the diameter of the pipeline can be increased, thereby reducing the internal pressure, preventing the pipeline from breaking and improving the safety.

[0008] As a further description of the above technical scheme: the dismounting assembly comprises a plurality of fixed rods, the fixed rods are all penetrated and slidably connected with one end of the fixed block, and the fixed rods are fixedly connected with the main pipe.

[0009] By adopting the above technical scheme, the fixed rods can support the fixed block.

[0010] As a further description of the above technical scheme: the inside of the fixed rod is all equipped with spring groove, and the inner wall of the spring groove is all fixedly connected with the second spring.

[0011] By adopting the above technical scheme, the second spring can be loaded in the spring groove, and the second spring can only deform in the fixed rod.

[0012] As a further description of the above technical scheme: the two ends of the second spring are all fixedly connected with the limit disc, and the limit disc is slidably connected with the spring groove.

[0013] By adopting the above technical scheme, the limit disc can make the support rod slide and displace in the fixed rod.

[0014] As a further description of the above technical scheme: one end of the limit disc is all fixedly connected with the support rod, the support rod is penetrated and slidably connected with the fixed block, and the support rod is slidably connected with the fixed rod.

[0015] By adopting the above technical scheme, the support rod can limit the fixed block to the specified position on the main pipe.

[0016] As a further description of the above technical scheme: the other end of the limit rod is all fixedly connected with the sliding plate, and the sliding plate is in contact with the transport main board.

[0017] Through the above technical scheme, the extension plate required can be connected and limited through the installed slide plate.

[0018] As a further description of the above technical scheme, the extension plate is slidably connected through the slide plate.

[0019] Through the above technical scheme, the extension plate can limit the slide plate.

[0020] As a further description of the above technical scheme, the connecting block is fixedly connected to one end of the limiting rod.

[0021] Through the above technical scheme, the connecting block can limit the limiting rod, so that the limiting rod can only slide on the fixed block.

[0022] Compared with the prior art, the utility model has the beneficial effects as follows:

[0023] 1. The steam conveying pipeline for power plants provided by the utility model can adapt to expansion and contraction caused by temperature change through the linkage pipeline between the telescopic rod, the damping spring, the conveying main plate, the conveying auxiliary plate and the bearing groove, reduce stress concentration caused by temperature change, improve the service life of the pipeline, effectively absorb and buffer the vibration generated by the pipeline during operation, protect the pipeline and its connecting components, avoid excessive local pressure, and improve the stability and safety of the pipeline.

[0024] 2. The steam conveying pipeline for power plants provided by the utility model can be quickly disassembled through the linkage fixing block between the limiting rod, the second spring, the limiting disc, the supporting rod, the first spring, the slide plate, the extension plate and the connecting block, facilitate the maintenance and repair of the pipeline, reduce downtime, improve the maintenance efficiency, adapt to expansion or contraction of the pipeline caused by temperature change, ensure that the heat preservation material will not fall off, make it easy to replace different types or thicknesses of heat preservation cotton, and can adjust the heat preservation performance according to the requirement. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a perspective view of the utility model;

[0027] Figure 3 It is a sectional view of the fixing rod of the utility model.

[0028] LEGEND:

[0029] 1, main pipe; 2, bearing groove; 3, telescopic rod; 4, damping spring; 5, transport main plate; 6, transport auxiliary plate; 7, fixed block; 8, limiting rod; 9, first spring; 10, connecting block; 11, sliding plate; 12, extension plate; 13, bearing block; 14, sliding groove; 15, fixed rod; 16, second spring; 17, limiting disc; 18, support rod; 19, spring groove. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] In order to further understand the content of the present application, the present application will be described in detail with reference to the drawings.

[0032] Referring to Figures 1-3 , a steam conveying pipeline for a power plant, comprising a main pipe 1, both sides of one end of the outer wall of the main pipe 1 are fixedly connected with bearing blocks 13, one side of each bearing block 13 is provided with a sliding groove 14, the whole pipeline can be transported to a specified position through the sliding grooves 14 provided on the bearing blocks 13, both ends of the main pipe 1 are provided with fixed blocks 7, the required structures and components can be carried and connected through the installed fixed blocks 7, spring grooves 19 are provided in the interiors of the fixed rods 15, the required second springs 16 can be carried through the installed spring grooves 19, one end of each limiting rod 8 is fixedly connected with a connecting block 10, the limiting rod 8 can always slide on the fixed block 7 through the installed connecting block 10.

[0033] Referring to Figure 2 , a steam conveying pipeline for a power plant, comprising a main pipe 1, both sides of one end of the outer wall of the main pipe 1 are fixedly connected with bearing blocks 13, one side of each bearing block 13 is provided with a sliding groove 14, the whole pipeline can be transported to a specified position through the sliding grooves 14 provided on the bearing blocks 13, both ends of the main pipe 1 are provided with fixed blocks 7, the required structures and components can be carried and connected through the installed fixed blocks 7, spring grooves 19 are provided in the interiors of the fixed rods 15, the required second springs 16 can be carried through the installed spring grooves 19, one end of each limiting rod 8 is fixedly connected with a connecting block 10, the limiting rod 8 can always slide on the fixed block 7 through the installed connecting block 10.

[0034] Referring to Figure 2 and Figure 3The outer wall of the fixed block 7 is penetrated and slidably connected with the uniformly distributed limiting rods 8, the outer ring of the limiting rod 8 is sleeved with the first spring 9, one end of the fixed block 7 is provided with a dismounting assembly, the dismounting assembly comprises a plurality of fixed rods 15, the fixed rod 15 is penetrated and slidably connected with one end of the fixed block 7, the fixed rod 15 is fixedly connected with the main pipe 1, the inner wall of the spring groove 19 is fixedly connected with the second spring 16 at one end, the two ends of the second spring 16 are fixedly connected with the limiting disc 17, and the limiting disc 17 is slidably connected with the spring groove 19, one end of the limiting disc 17 is fixedly connected with the supporting rod 18, and the supporting rod 18 is penetrated and slidably connected with the fixed block 7, the supporting rod 18 is slidably connected with the fixed rod 15, the supporting rod 18 is slid into the fixed rod 15, so that the limiting disc 17 extrudes the second spring 16, so that the fixed block 7 slides out of the limiting rod 8, so that the insulating cotton with different performance can be replaced according to the requirements of different parts or seasons, the fine temperature control management is realized, the other end of the limiting rod 8 is fixedly connected with the sliding plate 11, and the sliding plate 11 is in contact with the transportation main plate 5, the extension plate 12 is penetrated and slidably connected between the sliding plates 11, the extension plate 12 slides through the sliding of the sliding plate 11, so that the limiting rod 8 slides in the fixed block 7, so that the first spring 9 is extruded, so that the heat preservation material is always close to the pipeline, the heat loss is reduced, and the heat preservation effect is improved.

[0035] Working principle: by sliding the supporting rod 18 into the fixed rod 15, the limiting disc 17 slides in the spring groove 19, the second spring 16 is extruded, then the required insulating cotton or other heat preservation objects are placed in the bearing groove 2, then the fixed block 7 slides into the fixed rod 15, so that the fixed block 7 is in contact with the main pipe 1, then the limiting disc 17 is reset through the rebound of the second spring 16, so that the supporting rod 18 is extruded, so that the supporting rod 18 slides out of the fixed rod 15 and slides into the fixed block 7, so that the specified fixed block 7 is fixed and limited at both ends of the main pipe 1, then when the pressure in the pipeline is too large, the transportation main plate 5 slides, the transportation auxiliary plate 6 slides between the transportation main plate 5, the telescopic rod 3 deforms, the damping spring 4 is extruded, the diameter of the pipeline increases, and the rebound of the damping spring 4 prevents the diameter of the pipeline from increasing too much, at this time, the sliding plate 11 slides in the main pipe 1, the extension plate 12 slides in the sliding plate 11, the limiting rod 8 slides in the fixed block 7, the first spring 9 is extruded, and the increase of the diameter of the pipeline is adapted.

[0036] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0037] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A steam delivery conduit for a power plant comprising a main pipe (1), characterised in that: The inner wall of the bearing groove (2) is fixedly connected with uniformly distributed telescopic rods (3), the outer circle of the telescopic rod (3) is sleeved with a damping spring (4), one end of the telescopic rod (3) is fixedly connected with a transport main plate (5), the transport main plate (5) is penetrated and slidably connected with a transport auxiliary plate (6), the outer wall of the main pipe (1) is fixedly connected with a bearing block (13) on both sides of one end, the bearing block (13) is provided with a sliding groove (14) on one side, the both ends of the main pipe (1) are provided with a fixed block (7), the outer wall of the fixed block (7) is penetrated and slidably connected with a uniformly distributed limiting rod (8), the outer circle of the limiting rod (8) is sleeved with a first spring (9), one end of the fixed block (7) is provided with a disassembly assembly.

2. A steam delivery conduit for a power plant as claimed in claim 1, characterised in that: The disassembly assembly comprises a plurality of fixed rods (15), the fixed rod (15) is penetrated and slidably connected with one end of the fixed block (7), and the fixed rod (15) is fixedly connected with the main pipe (1).

3. A steam delivery conduit for a power plant as claimed in claim 2, characterised in that: The inner wall of the spring groove (19) is fixedly connected with a second spring (16) at one end.

4. A steam delivery conduit for a power plant as claimed in claim 3, characterised in that: The both ends of the second spring (16) are fixedly connected with a limiting disc (17), and the limiting disc (17) is slidably connected with the spring groove (19).

5. A steam delivery conduit for a power plant as claimed in claim 4, characterised in that: One end of the limiting disc (17) is fixedly connected with a supporting rod (18), and the supporting rod (18) is penetrated and slidably connected with the fixed block (7), and the supporting rod (18) is slidably connected with the fixed rod (15).

6. A steam delivery conduit for a power plant as defined in claim 1, wherein: The other end of the limiting rod (8) is fixedly connected with a sliding plate (11), and the sliding plate (11) is in contact with the transport main plate (5).

7. A steam delivery conduit for a power plant according to claim 6, characterised in that: The sliding plate (11) is penetrated and slidably connected with an extension plate (12) between them.

8. A steam delivery conduit for a power plant as defined in claim 1, wherein: One end of the limiting rod (8) is fixedly connected with a connecting block (10).

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