Pressure pipeline support, steam turbine and thermal power plant unit
By introducing sliding devices and fixing components into the pressure pipeline support, the problem of pressure pipelines being easily stuck under different working conditions in the prior art is solved, and the flexible movement and stable fixation of the pressure pipelines are achieved, avoiding arches and deformations. and stress cracks improve the stability of the unit and the reliability of the equipment.
Patent Information
- Application Number
- CN202421254670.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-01-07
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing pressure pipeline brackets and bases are prone to form clamping points under different working conditions of medium pressure and temperature, resulting in hindered expansion and contraction, resulting in defects such as arching, deformation, stress cracks in the pressure pipeline, and affecting the stable operation of the unit.
A pressure pipe bracket including a mount, a base and a sliding device is designed. The sliding device is connected by a rolling component, allowing the mount to roll and move on the base, reducing friction, avoiding movement jamming, and ensuring pressure through the fixed component The pipe is stable and fixed under different working conditions.
It effectively avoids the arching, deformation and stress cracks caused by pressure pipelines during expansion and contraction, improves the stable operation of the unit, extends the service life of rolling parts, and improves the reliability of pressure pipeline brackets.
Smart Images
Figure CN222316174U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of thermal power generation equipment, in particular to a pressure pipe support, a steam turbine and a thermal power plant unit. Background Art
[0002] During the operation of thermal power plant units, the pressure pipeline will expand and contract under different working conditions of medium pressure and temperature. The existing pressure pipeline supports and bases have large resistance and are prone to forming stuck points, resulting in expansion and contraction obstructions, causing defects such as arching, deformation, and stress cracks in the pressure pipeline, posing a hidden danger to the stable operation of the unit. Utility Model Content
[0003] The main purpose of the utility model is to provide a pressure pipe support, a steam turbine and a thermal power plant unit, aiming to provide a pressure pipe support, a steam turbine and a thermal power plant unit that can effectively and flexibly move when longitudinal displacement occurs under different working conditions.
[0004] In order to achieve the above-mentioned purpose, the pressure pipe support proposed by the utility model comprises:
[0005] A mounting seat, used for mounting the pressure pipe;
[0006] A base, used to support the mounting base; and
[0007] The sliding device is arranged between the mounting seat and the base, and is used for the mounting seat and the base to slide relative to each other when the pressure pipe is deformed.
[0008] In one embodiment, the sliding device includes a rolling portion, which is mounted on the base and is rollingly connected to the mounting seat.
[0009] In one embodiment, the rolling portion includes a roller, the roller extends along the width direction of the base, and both ends of the roller are rotatably connected to the base.
[0010] In one embodiment, rollers are protruding from both ends of the roller;
[0011] The rolling part further comprises two rolling bearings, and the two rolling bearings are arranged at intervals at both ends of the base along the width thereof;
[0012] The roller is embedded in the inner ring of the rolling bearing and is fixedly connected.
[0013] In one embodiment, the roller and the two rolling bearings are configured as a rolling group, and the rolling group is provided in multiple groups and is arranged at intervals along the length direction of the base.
[0014] In one embodiment, the pressure pipe support further includes a fixing portion, which is disposed on the mounting seat and is used to fix the pressure pipe.
[0015] In one embodiment, the fixing portion includes a fixing clamp, and the fixing clamp includes:
[0016] A first clamp, protruding from the mounting seat, and supporting the pressure pipe;
[0017] A second clamp, which is disposed on the first clamp in a vertical direction relative to the pressure pipe;
[0018] Wherein, the first clamp and the second clamp are connected by bolts.
[0019] In one embodiment, the first clamp and the second clamp are configured as a fixing group, and the fixing group is provided in plurality and is spaced apart along the length direction of the pressure pipe.
[0020] The utility model also provides a steam turbine, which comprises the pressure pipe support as described above.
[0021] The utility model also provides a thermal power plant unit, which includes the steam turbine as described above.
[0022] The technical solution of the utility model is to install the pressure pipe by setting the mounting seat, the base is used to support the mounting seat, and the sliding device is set between the mounting seat and the base. When the pressure pipe needs to be deformed, the mounting seat can move relative to the base through the sliding device, thereby avoiding movement jamming and the possibility of defects such as arching, deformation, stress cracks, etc. on the pressure pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0024] Figure 1 A front view of an embodiment of a pressure pipe support provided by the utility model;
[0025] Figure 2 for Figure 1 An internal cross-sectional view of the middle base from a top view.
[0026] Description of Figure Numbers:
[0027] 100. Pressure pipe support; 1. Mounting seat; 2. Base; 3. Sliding device; 31. Rolling part; 311. Roller; 3111. Roller; 312. Rolling bearing; 4. Fixing part; 41. Fixing clamp; 411. First clamp; 412. Second clamp.
[0028] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0032] During the operation of thermal power plant units, the pressure pipeline will expand and contract under different working conditions of medium pressure and temperature. The existing pressure pipeline supports and bases have large resistance and are prone to forming stuck points, resulting in expansion and contraction obstructions, causing defects such as arching, deformation, and stress cracks in the pressure pipeline, posing a hidden danger to the stable operation of the unit.
[0033] In order to solve the above problems, the utility model proposes a pressure pipe support, a steam turbine and a thermal power plant unit, aiming to provide a pressure pipe support, a steam turbine and a thermal power plant unit that can effectively and flexibly move when longitudinal displacement occurs under different working conditions. Figure 1 to Figure 2 The present invention is a schematic structural diagram of an embodiment of a pressure pipe support provided by the present invention.
[0034] Please refer to Figure 1 to Figure 2 In one embodiment of the utility model, the pressure pipe support 100 includes a mounting seat 1, a base 2 and a sliding device 3; the mounting seat 1 is used to install the pressure pipe; the base 2 is used to support the mounting seat 1; the sliding device 3 is arranged between the mounting seat 1 and the base 2, and is used for the mounting seat 1 and the base 2 to slide relative to each other when the pressure pipe is deformed.
[0035] The technical solution of the utility model is to install the pressure pipe by setting the mounting seat 1, the base 2 is used to support the mounting seat 1, and the sliding device 3 is set between the mounting seat 1 and the base 2. When the mounting seat 1 needs to be deformed on the pressure pipe, the mounting seat 1 can move relative to the base 2 through the sliding device 3, thereby avoiding movement jamming and the possibility of defects such as arching, deformation, stress cracks, etc. on the pressure pipe.
[0036] For further information, please refer to Figure 1 , the sliding device 3 includes a rolling portion 31, the rolling portion 31 is mounted on the base 2, and is rollingly connected to the mounting seat 1. It can be understood that the sliding device 3 is used for the mounting seat 1 to displace relative to the base 2. In some embodiments, a plane sliding method is adopted, but the friction force of the sliding friction is still too large, which is not conducive to the movement of the mounting seat 1. Therefore, the sliding device 3 also includes the rolling portion 31, the rolling portion 31 is mounted on the base 2, and is rollingly connected to the mounting seat 1. Therefore, rolling friction is generated relative to the mounting seat 1 through the rolling portion 31, and for the same mounting seat 1, the rolling friction force is much smaller than the sliding friction force, which is more conducive to the plane movement of the mounting seat 1, thereby avoiding the defects of the pressure pipeline such as arching, deformation, and stress cracks.
[0037] For further information, please refer to Figure 2, the rolling part 31 includes a roller 311, the roller 311 extends along the width direction of the base 2, and the two ends are rotatably connected to the base 2. It can be understood that in order to make the friction between the mounting seat 1 and the base 2 rolling friction, a number of balls can be arranged between the base 2 and the mounting seat 1, but such an arrangement has a huge economic cost, so in other embodiments, the rolling part 31 includes the roller 311, and the circumferential side of the roller 311 is rollingly connected to the mounting base 2, thereby causing rolling friction between the roller 311 and the mounting seat 1, thereby facilitating the planar movement of the mounting seat 1; specifically, the roller 311 extends along the width direction of the base 2, and the two ends are rotatably connected to the base 2.
[0038] For further information, please refer to Figure 2 , rollers 3111 are convexly provided at both ends of the roller 311; the rolling part 31 also includes two rolling bearings 312, which are arranged at intervals at both ends of the base 2 along its width; wherein the rollers 3111 are embedded in the inner ring of the rolling bearings 312 and are fixedly connected. It can be understood that when the roller 311 is rotatably connected to the base 2, but in such a configuration, the circumference of both ends of the roller 311 and the base 2 are in plane friction, and when used for too long, it is easy to cause wear at both ends of the roller 311, and thus it cannot be well connected to the base 2.
[0039] Therefore, the rollers 3111 are protrudingly provided at both ends of the roller 311; the rolling portion 31 also includes two rolling bearings 312, and the two rolling bearings 312 are arranged at intervals at both ends of the base 2 along its width; wherein the roller 3111 is embedded in the inner ring of the rolling bearing 312 and fixedly connected, and the roller 3111 is fixed to the inner ring of the rolling bearing 312, and the outer ring of the rolling bearing 312 is fixed to the mounting hole of the base 2, and there is rolling friction between the outer ring of the rolling bearing 312 and the inner ring, thereby reducing the wear of the plane friction at both ends of the roller 3111, thereby making the roller 311 have a longer service life relative to the mounting seat 1, and the pressure pipe support 100 is more reliable.
[0040] For further information, please refer to Figure 2, the roller 311 and the two rolling bearings 312 are set as a rolling group, and the rolling group is provided in multiple groups, which are arranged at intervals along the length direction of the base 2. It can be understood that the weight of the pressure pipe is very heavy. In order to avoid the possibility that the roller 311 or the rolling bearing 312 is crushed due to gravity, the roller 311 and the two rolling bearings 312 are set as a rolling group, and the rolling group is provided in multiple groups, which are arranged at intervals along the length direction of the base 2; through such an arrangement, the weight of the pressure pipe is evenly distributed on the multiple rolling groups, thereby keeping the circumferential pressure of each roller 311 within a constant small value, thereby protecting the circumferential side of the roller 311 and the rolling bearing 312 from being crushed by the pressure pipe, thereby ensuring the reliability of the pressure pipe support 100.
[0041] In addition, please refer to Figure 1 The pressure pipe support 100 further includes a fixing portion 4, which is disposed on the mounting seat 1 and is used to fix the pressure pipe. It is understandable that since the weight of the pressure pipe is very large and it will move in plane with the mounting seat 1 under different working conditions, for the sake of safety, the pressure pipe support 100 further includes the fixing portion 4, which is disposed on the mounting seat 1 and is used to fix the pressure pipe, so that when the mounting seat 1 moves in plane relative to the base 2, the pressure pipe is firmly fixed on the mounting seat 1.
[0042] For further information, please refer to Figure 1 The fixing portion 4 includes a fixing clamp 41, and the fixing clamp 41 includes a first clamp 411 and a second clamp 412; the first clamp 411 is protruded on the mounting seat 1 to support the pressure pipe; the second clamp 412 is covered on the first clamp 411 along the up and down direction relative to the pressure pipe; wherein the first clamp 411 and the second clamp 412 are connected by bolts. It can be understood that in order to fix the pressure pipe on the mounting base 1, specifically, the fixing part 4 includes the fixing clamp 41, and the fixing clamp 41 includes the first clamp 411 and the second clamp 412. The fixing clamp 41 has a split structure, which makes it easier to assemble the pressure pipe; in particular, the first clamp 411 is protruding from the mounting base 1 to support the pressure pipe; the second clamp 412 is covered on the first clamp 411 along the up and down directions relative to the pressure pipe, and the first clamp 411 and the second clamp 412 are connected by bolts. The bolt connection can greatly comfortably fit the pressure pipe in the fixing clamp 41, and due to the bolt connection, the mounting base 1 is more reliable for fixing the pressure pipe.
[0043] For further information, please refer to Figure 1 , the first clamp 411 and the second clamp 412 are set as a fixed group, and the fixed group is provided with a plurality of them, which are arranged at intervals along the length direction of the pressure pipeline. It can be understood that the pressure pipeline has a long length. In order to install the pressure pipeline on the mounting seat 1 more stably, the first clamp 411 and the second clamp 412 are set as a fixed group, and the fixed group is provided with a plurality of them, which are arranged at intervals along the length direction of the pressure pipeline. Then, in the length direction of the pressure pipeline, the force of more parts of the pressure pipeline is distributed by the plurality of fixed groups, so that even if the pressure pipeline produces longitudinal displacement under different working conditions such as the temperature and pressure of the medium, it will not fall from the mounting seat 1, which satisfies the reliable assembly of the pressure pipeline on the mounting seat 1.
[0044] The utility model also proposes a steam turbine, which includes the pressure pipe support 100. The specific structure of the pressure pipe support 100 refers to the above embodiment. Since the steam turbine adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.
[0045] The utility model also proposes a thermal power plant unit, the thermal power plant unit includes the steam turbine, the steam turbine includes the pressure pipe support 100, the specific structure of the pressure pipe support 100 refers to the above embodiment, since the thermal power plant unit adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.
[0046] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A pressure pipe support, characterized in that: include: A mounting seat, used for mounting the pressure pipe; A base, used to support the mounting base; as well as, The sliding device is arranged between the mounting seat and the base, and is used for the mounting seat and the base to slide relative to each other when the pressure pipe is deformed.
2. The pressure pipe support according to claim 1, characterized in that: The sliding device comprises a rolling part, which is mounted on the base and is rollingly connected with the mounting seat.
3. The pressure pipe support according to claim 2, characterized in that: The rolling part includes a roller, which extends along the width direction of the base and has two ends rotatably connected to the base.
4. The pressure pipe support according to claim 3, characterized in that: Rollers are convexly provided at both ends of the roller; The rolling part further comprises two rolling bearings, and the two rolling bearings are arranged at intervals at both ends of the base along the width thereof; The roller is embedded in the inner ring of the rolling bearing and is fixedly connected.
5. The pressure pipe support according to claim 4, characterized in that: The roller and the two rolling bearings are configured as a rolling group, and the rolling group is provided in multiple groups and is spaced apart along the length direction of the base.
6. The pressure pipe support according to claim 1, characterized in that: The pressure pipe support further comprises a fixing portion, which is arranged on the mounting seat and is used to fix the pressure pipe.
7. The pressure pipe support according to claim 6, characterized in that: The fixing portion includes a fixing clamp, and the fixing clamp includes: A first clamp, protruding from the mounting seat, and supporting the pressure pipe; A second clamp, which is disposed on the first clamp in a vertical direction relative to the pressure pipe; Wherein, the first clamp and the second clamp are connected by bolts.
8. The pressure pipe support according to claim 7, characterized in that: The first clamp and the second clamp are configured as a fixed group, and the fixed group is provided in plurality and arranged at intervals along the length direction of the pressure pipe.
9. A steam turbine, characterized in that: The steam turbine comprises a pressure pipe support as described in any one of claims 1-8.
10. A thermal power plant unit, characterized in that: The thermal power plant unit includes the steam turbine as claimed in claim 9.