Vibration damper for axial vibration control of steam-water pipeline of thermal power plant

Abstract

The invention discloses a damping device for axial vibration control of a steam-water pipeline of a thermal power plant, the damping device comprises two outer connecting assemblies and two inner fixing assemblies, the two inner fixing assemblies are respectively located in the corresponding outer connecting assemblies, and the inner walls of the two outer connecting assemblies are fixedly connected with a plurality of radial damping assemblies; the invention relates to the technical field of pipeline vibration control. According to the damping device for controlling the axial vibration of the steam-water pipeline of the thermal power plant, the damping device and the steam-water pipeline can be conveniently and fixedly installed through the arranged outer connecting assembly and the inner fixing assembly, and meanwhile the damping effect on the steam-water pipeline can be improved through the arranged axial damping assemblies distributed in a surrounding mode; and meanwhile, through cooperative use of a third spring, a movable buffering damping block, a fourth spring and a fixed vibration reduction damping sleeve in the axial vibration reduction assembly, axial vibration borne by the steam-water pipeline can be buffered and reduced, the shaking amplitude of the steam-water pipeline is reduced, and therefore the working stability of the whole pipeline can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline vibration control, in particular to a vibration reduction device used for axial vibration control of steam-water pipelines in thermal power plants. Background Art

[0002] Pipeline vibration is one of the important factors that endanger pipeline safety. Steam and water pipelines in thermal power plants frequently suffer from pipeline vibration failures due to pulsation of the medium in the pipe, turbulence, equipment vibration transmission and other reasons. The relevant standards and specifications have strict regulations on the vibration level of steam and water pipelines in thermal power plants. If the vibration exceeds the standard, vibration control must be carried out; pipeline vibration will affect the normal readings and service life of the temperature and pressure instruments on the pipeline, and may even cause a chain shutdown protection action due to excessive deviation in the instrument readings; at the same time, alternating stress will be generated on the joints of pipelines and pipe fittings. Long-term large vibrations may induce loosening of the joints of pipelines and pipe fittings, resulting in leakage; for some high-temperature and high-pressure medium pipelines, once a leak occurs, casualties may occur.

[0003] According to the search, the authorization announcement number CN 214119340 U announced a TMD vibration reduction device for axial vibration control of steam-water pipelines in thermal power plants, which belongs to the category of pipeline vibration reduction and vibration control technology. It mainly uses the TMD (tuned mass damper) structure to absorb the system vibration energy, thereby reducing the vibration amplitude of the pipeline. Its application includes pipelines, axial limit pipe clamps and TMD structures. The TMD structure is directly installed on the vibrating pipeline through the pipe clamp without the need for a rooting point; the TMD structure mainly includes two sets of springs and mass blocks. Polymer damping materials are arranged on the contact surface of the mass block and the TMD cylinder. A threaded through hole is left on the mass block to facilitate the installation of adjustment blocks and precise debugging during subsequent operation.

[0004] With respect to the above-mentioned related technologies, the applicant believes that the above-mentioned shock absorbing device can be installed by welding two pipe clamps on the outside of the steam-water pipe to install a single shock absorbing device to buffer and reduce the axial vibration of the steam-water pipe. However, due to the singleness of the shock absorbing device, the axial vibration buffering effect on the water vapor pipe is not obvious. At the same time, since it is only distributed on one side of the water vapor pipe, it is easy for the water vapor pipe to be unevenly stressed during the vibration reduction process, resulting in unsatisfactory vibration effect and low shock reduction efficiency.

[0005] To this end, the present invention provides a vibration reduction device for controlling axial vibration of steam-water pipelines in thermal power plants to solve the above-mentioned problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a vibration reduction device for controlling axial vibration of steam-water pipelines in thermal power plants, which solves the above-mentioned problems.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a vibration reduction device for axial vibration control of steam-water pipelines in thermal power plants, comprising two outer connection components and two inner fixed components, the two inner fixed components are respectively located in the corresponding outer connection components, the inner walls of the two outer connection components are fixedly connected with a plurality of radial vibration reduction components, one end of the plurality of radial vibration reduction components are connected to the corresponding inner fixed components, a stationary component is arranged below the two outer connection components, the outer wall of the outer connection component is fixedly connected with a plurality of support sleeves, the plurality of support sleeves are slidably provided with adjustment components, and a plurality of axial vibration reduction components are arranged between the two outer connection components;

[0008] The axial vibration damping assembly includes two side sliding sleeves arranged between two outer connecting assemblies, the two side sliding sleeves are both provided with side fixed sleeves, the two side fixed sleeves are fixedly connected with the same center sleeve, the center sleeve is fixedly connected with a fixed vibration damping sleeve, the fixed vibration damping sleeve is provided with a plurality of damping gaskets, both ends of the fixed vibration damping sleeve are both fixedly connected with a fixed spring fixing seat, one side of the two fixed spring fixing seats is both fixedly connected with a prismatic sliding rod, the two prismatic sliding rods are both provided with a dynamic buffer damping block, one side of the two dynamic buffer damping blocks is both fixedly connected with a third spring, one end of the two third springs respectively slides and extends into the corresponding side sliding sleeves, one side of the two dynamic buffer damping blocks is both fixedly connected with a fourth spring, and one side of the two fourth springs is respectively connected to the corresponding fixed spring fixing seat.

[0009] Preferably, the external connection component includes an upper connection socket, a lower connection socket and four external ear plates, one side of two corresponding external ear plates are connected to the upper connection socket, one side of two corresponding external ear plates are connected to the lower connection socket, and two first bolt fasteners are slidably penetrated on each adjacent two external ear plates. By setting up detachable upper connection sockets and lower connection sockets, assembly can be facilitated, and multiple radial vibration damping components can be easily installed, which is convenient for installation and use.

[0010] Preferably, the internal fixing component includes two internal fixing sockets, the inner walls of the two internal fixing sockets are fixedly connected with extrusion pads, the extrusion pads are made of rubber material, the outer walls of the two internal fixing sockets are fixedly connected with two inner ear plates, and three second bolt fasteners are slidably penetrated on each two adjacent inner ear plates. By providing a detachable internal fixing socket, it is convenient to fasten and connect with the steam-water pipeline, facilitate the installation of the overall equipment, and at the same time, it is convenient to match the radial vibration damping component to buffer the radial vibration of the steam-water pipeline.

[0011] Preferably, the radial vibration damping assembly includes an outer sleeve fixedly connected to the inner wall of the outer connecting assembly, the outer sleeve is slidably and interspersed with an inner slide, one end of the inner slide is connected to the outer wall of the inner fixed seat, the inner wall of the outer sleeve is fixedly connected to a positioning rod, one end of the positioning rod slides and extends into the inner slide, a first spring is slidably sleeved on the positioning rod, one end of the first spring is connected to the inner wall of the outer sleeve, one end of the first spring is connected to the inner slide, one end of the positioning rod is fixedly connected to a baffle, one end of the baffle is fixedly connected to a second spring, one end of the second spring is connected to the inner wall of the inner slide, the first spring and the second spring are arranged in the radial vibration damping assembly to disperse and buffer the radial vibration to which the steam-water pipeline is subjected during operation, thereby reducing its overall vibration amplitude and making its operation more stable.

[0012] Preferably, the station assembly includes two extension plates fixedly connected to the bottom of the lower connecting card seat, a station base is arranged below the lower connecting card seat, two countersunk holes are opened on the top of the station base, two fastening sleeves are fixedly connected to the top of the station base, and the bottom ends of the two extension plates respectively slide and extend into the corresponding fastening sleeves.

[0013] Preferably, the station component also includes a plurality of adjustment holes opened on the two extension plates, the plurality of adjustment holes are equidistantly distributed, two first fixing bolts are slidably penetrated and connected to the two fastening sleeves, four of the first fixing bolts respectively slide through the corresponding adjustment holes, and first fastening nuts are threadedly sleeved on the four first fixing bolts. Through the provision of the station component, the external connection component can be conveniently fastened to the ground, thereby supporting the overall device and the steam-water pipeline, and the installation height of the external connection component and the steam-water pipeline can be adjusted, which is convenient for installation and use.

[0014] Preferably, the adjusting component includes an insert sleeve that is slidably penetrated by a corresponding supporting sleeve, one end of the insert sleeve is fixedly connected with an adjusting sleeve, one end of the adjusting sleeve is connected to the corresponding side sliding sleeve by a flange, a threaded long rod is rotatably penetrated by the insert sleeve, one end of the threaded long rod extends into the adjusting sleeve, a telescopic sleeve is threadedly sleeved on the threaded long rod, one end of the telescopic sleeve slidably extends into the corresponding side sliding sleeve, one end of the telescopic sleeve is fixedly connected with a dynamic spring base, the dynamic spring base contacts with the corresponding third spring, one end of the threaded long rod is fixedly connected with a handwheel, the outer wall of the insert sleeve is provided with an external threaded surface, and a second fastening nut is threadedly sleeved on the external threaded surface, the telescopic length of the third spring and the fourth spring can be adjusted by the arranged adjusting component, so that the vibration damping strength of the axial vibration damping assembly can be adjusted, so that it is convenient for it to adapt to the vibration amplitude of the steam-water pipeline and improve the vibration damping efficiency.

[0015] Preferably, the outer walls of the plurality of center sleeves are fixedly provided with a fixed reinforcement ring, the plurality of fixed reinforcement rings are opened with a circular hole, the plurality of center sleeves are slidably provided with a dynamic reinforcement ring, a reinforcement rod is fixedly connected between each two adjacent dynamic reinforcement rings, one side of the plurality of dynamic reinforcement rings is fixedly connected with a second fixing bolt, the plurality of second fixing bolts slide through the corresponding circular holes respectively, and the plurality of second fixing bolts are threadedly provided with a third fastening nut, and the plurality of center sleeves can be connected by using the fixed reinforcement ring, the circular hole, the dynamic reinforcement ring, the reinforcement rod, the second fixing bolt and the third fastening nut in combination to enhance their structural strength.

[0016] Preferably, the outer wall of the side sliding sleeve is fixedly connected with two symmetrically distributed positioning blocks, and the positioning blocks slide through the corresponding side fixed sleeves. The outer wall of the side sliding sleeve is fixedly connected with four symmetrically distributed side plates, and an anti-skewness sliding rod is fixedly connected between each two adjacent side plates, and the anti-skewness sliding rod slides through the corresponding positioning blocks. The side sliding sleeve can be supported and limited by the arranged positioning blocks, side plates and anti-skewness sliding rods to prevent it from deviating and affecting its normal operation.

[0017] Preferably, a limiting groove is provided on the inner wall of the adjusting cylinder, and a clamping rod is fixedly connected to the outer wall of the telescopic sleeve, and one end of the clamping rod slides and extends into the limiting groove. The limiting groove and the clamping rod can limit the telescopic sleeve to make its movement smoother and prevent it from moving too far and detaching from the adjusting cylinder.

[0018] Beneficial Effects

[0019] The present invention provides a vibration reduction device for controlling axial vibration of steam-water pipelines in thermal power plants. Compared with the prior art, it has the following beneficial effects:

[0020] (1) The vibration reduction device for axial vibration control of the steam-water pipeline in a thermal power plant can be conveniently fixed to the steam-water pipeline by means of the external connection component and the internal fixing component. At the same time, the vibration reduction effect on the steam-water pipeline can be improved by means of multiple axial vibration reduction components distributed around the pipeline. At the same time, the axial vibration reduction component can buffer and reduce the axial vibration of the steam-water pipeline by means of the third spring, the dynamic buffer damping block, the fourth spring and the fixed vibration damping sleeve, thereby reducing the shaking amplitude and improving the working stability of the entire pipeline.

[0021] (2) The vibration reduction device for controlling the axial vibration of the steam-water pipeline in a thermal power plant can be easily assembled by providing a separable upper connecting base and a lower connecting base, and can also be easily installed with multiple radial vibration reduction components, making it easy to install and use.

[0022] (3) The vibration reduction device for controlling the axial vibration of the steam-water pipeline in a thermal power plant can be conveniently fastened to the steam-water pipeline by providing a detachable internal fixing bracket, which is convenient for the installation of the overall equipment, and is convenient for matching with the radial vibration reduction component to buffer the radial vibration of the steam-water pipeline.

[0023] (4) The vibration reduction device for controlling the axial vibration of the steam-water pipeline in a thermal power plant can disperse and buffer the radial vibration to which the steam-water pipeline is subjected during operation by means of the first spring and the second spring arranged in the radial vibration reduction assembly, thereby reducing the overall vibration amplitude and making the operation more stable.

[0024] (5) The vibration reduction device for axial vibration control of the steam-water pipeline in a thermal power plant can adjust the telescopic length of the third spring and the fourth spring through the arranged adjustment component, thereby being able to adjust the vibration reduction strength of the axial vibration reduction component, making it easier to adapt to the vibration amplitude of the pipeline and improve the vibration reduction efficiency.

[0025] (6) The vibration reduction device for controlling the axial vibration of the steam-water pipeline in a thermal power plant can conveniently fasten the external connection component to the ground through the station component, thereby supporting the entire device and the steam-water pipeline. At the same time, the installation height of the external connection component and the steam-water pipeline can be adjusted, which is convenient for installation and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional diagram of the external structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the related structures of the adjustment component and the axial vibration reduction component in the present invention;

[0028] Figure 3 It is a partial cross-sectional structural schematic diagram of the axial vibration reduction assembly in the present invention;

[0029] Figure 4 It is a schematic diagram of the internal structure of the fixed vibration damping sleeve in the present invention;

[0030] Figure 5 It is a partial cross-sectional structural schematic diagram of the adjustment component in the present invention;

[0031] Figure 6 It is a relevant assembly diagram of the external connection component, the internal fixing component, the radial vibration reduction component and the stationary component in the present invention;

[0032] Figure 7 is a schematic cross-sectional structural diagram of the radial vibration reduction assembly in the present invention;

[0033] Figure 8 It is a schematic diagram of the explosion installation structure of the station assembly in the present invention;

[0034] Fig. 9 It is a schematic diagram of the relevant structure of the dynamic reinforcement ring in the present invention.

[0035] In the figure: 1. External connection assembly; 101. Upper connection base; 102. Lower connection base; 103. External ear plate; 104. First bolt fastener; 2. Internal fixing assembly; 201. Internal fixing base; 202. Extrusion pad; 203. Internal ear plate; 204. Second bolt fastener; 3. Radial vibration reduction assembly; 301. Outer sleeve; 302. Inner slide; 303. Positioning rod; 304. First spring; 305. Baffle; 306. Second spring; 4. Station assembly; 401. Extension plate; 402. Station base; 403. Countersunk hole; 404. Fastening sleeve; 405. Adjustment hole; 406. First fixing bolt; 407. First fastening nut; 5. Support sleeve; 6. Adjustment assembly; 601. Insertion sleeve; 602, adjusting cylinder; 603, long threaded rod; 604, telescopic sleeve; 605, dynamic spring seat; 606, hand wheel; 607, external threaded surface; 608, second fastening nut; 7, axial vibration reduction assembly; 701, side sliding sleeve; 702, side fixed sleeve; 703, center sleeve; 704, fixed vibration damping sleeve; 705, damping gasket; 706, fixed spring fixing seat; 707, prismatic sliding rod; 708, dynamic buffer damping block; 709, third spring; 710, fourth spring; 8, fixed reinforcement ring; 9, round hole; 10, dynamic reinforcement ring; 11, reinforcement rod; 12, second fixing bolt; 13, third fastening nut; 14, positioning block; 15, side plate; 16, anti-sliding rod; 17, limiting groove; 18, clamping rod. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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 creative work are within the scope of protection of the present invention.

[0037] Embodiment 1:

[0038] See also Figures 1 to 4, a vibration reduction device for axial vibration control of steam-water pipelines in thermal power plants, comprising two outer connection components 1 and two inner fixed components 2, the two inner fixed components 2 are respectively located in the corresponding outer connection components 1, the inner walls of the two outer connection components 1 are fixedly connected with a plurality of radial vibration reduction components 3, one end of the plurality of radial vibration reduction components 3 is connected to the corresponding inner fixed component 2, a station component 4 is arranged below the two outer connection components 1, a plurality of support sleeves 5 are fixedly connected to the outer wall of the outer connection component 1, the plurality of support sleeves 5 are equidistantly distributed in an annular shape, and adjustment components 6 are slidably arranged on the plurality of support sleeves 5, and a plurality of axial vibration reduction components 7 are arranged between the two outer connection components 1;

[0039] The axial vibration reduction component 7 includes two side sliding sleeves 701 arranged between the two outer connection components 1, and the two side sliding sleeves 701 are both slidably provided with side fixed sleeves 702, and the same center sleeve 703 is fixedly connected between the two side fixed sleeves 702, and a fixed vibration reduction damping sleeve 704 is fixedly connected in the center sleeve 703, and a plurality of damping gaskets 705 are arranged in the fixed vibration reduction damping sleeve 704, and both ends of the fixed vibration reduction damping sleeve 704 are fixedly connected with a fixed spring fixing seat 706, and one side of the two fixed spring fixing seats 706 is fixedly connected with a prismatic sliding rod 707, and the two prismatic sliding rods 707 are both slidably provided with a dynamic buffer damping block 708, and one side of the two dynamic buffer damping blocks 708 is fixedly connected with a third spring 709, and one end of the two third springs 709 respectively slides and extends into the corresponding side sliding sleeve 701, and one side of the two dynamic buffer damping blocks 708 is fixedly connected with a fourth spring 710, and one side of the two fourth springs 710 is respectively fixed with the corresponding fixed spring. The seat 706 is connected. When the steam-water pipeline vibrates axially, it transmits the vibration to the axial vibration reduction component 7 through the internal fixing component 2 and the external connecting component 1. At this time, the vibration impact force on the dynamic spring seat 605 will directly act on the third spring 709. The third spring 709 initially buffers the impact force and then transmits the impact force to the dynamic buffer damping block 708. The dynamic buffer damping block 708 buffers the impact force. Then the impact force is transmitted to the fourth spring 710, and then transmitted to the fixed vibration damping sleeve 704 after being buffered again, and finally absorbed and reduced by the multiple damping gaskets 705 inside it; the outer wall of the side sliding sleeve 701 is fixedly connected with two symmetrically distributed positioning blocks 14, and the positioning blocks 14 slide through the corresponding side fixed sleeve 702. The outer wall of the side sliding sleeve 701 is fixedly connected with four symmetrically distributed side plates 15, and an anti-deflection slide rod 16 is fixedly connected between each two adjacent side plates 15, and the anti-deflection slide rod 16 slides through the corresponding positioning block 14.

[0040] Embodiment 2:

[0041] See also Figures 1 to 9, this embodiment provides a technical solution based on the first embodiment: the external connection component 1 includes an upper connection base 101, a lower connection base 102 and four external ear plates 103, one side of the corresponding two external ear plates 103 are connected to the upper connection base 101, one side of the corresponding two external ear plates 103 are connected to the lower connection base 102, and two first bolt fasteners 104 are slidably penetrated on each adjacent two external ear plates 103; the internal fixing component 2 includes two internal fixing bases 201, the inner walls of the two internal fixing bases 201 are fixedly connected with compression pads 202, and the compression pads 202 are made of rubber material, the outer walls of the two internal fixing bases 201 are fixedly connected with two inner ear plates 203, and three second bolt fasteners 204 are slidably penetrated on each adjacent two inner ear plates 203;

[0042] The radial vibration damping assembly 3 includes an outer sleeve 301 fixedly connected to the inner wall of the outer connecting assembly 1, an inner slide 302 is slidably inserted and connected to the outer sleeve 301, one end of the inner slide 302 is connected to the outer wall of the inner fixed holder 201, a positioning rod 303 is fixedly connected to the inner wall of the outer sleeve 301, one end of the positioning rod 303 slides and extends into the inner slide 302, a first spring 304 is slidably sleeved on the positioning rod 303, one end of the first spring 304 is connected to the inner wall of the outer sleeve 301, one end of the first spring 304 is connected to the inner slide 302, one end of the positioning rod 303 is fixedly connected to a baffle 305, one end of the baffle 305 is fixedly connected to a second spring 306, one end of the second spring 306 is connected to the inner wall of the inner slide 302;

[0043] The station assembly 4 includes two extension plates 401 fixedly connected to the bottom of the lower connection base 102, a station base 402 is arranged below the lower connection base 102, two countersunk holes 403 are arranged on the top of the station base 402, two fastening sleeves 404 are fixedly connected to the top of the station base 402, and the bottom ends of the two extension plates 401 are respectively slidably extended into the corresponding fastening sleeves 404; the station assembly 4 also includes a plurality of adjustment holes 405 arranged on the two extension plates 401, and the plurality of adjustment holes 405 are equidistantly distributed, and two first fixing bolts 406 are slidably penetrated and connected to the two fastening sleeves 404, and the four first fixing bolts 406 are respectively slidably penetrated through the corresponding adjustment holes 405, and the four first fixing bolts 406 are all threadedly sleeved with first fastening nuts 407;

[0044] The adjusting assembly 6 includes an insert 601 that is slidably penetrated on the corresponding supporting sleeve 5, one end of the insert 601 is fixedly connected with an adjusting sleeve 602, one end of the adjusting sleeve 602 is connected to the corresponding side sliding sleeve 701 through a flange, a threaded long rod 603 is rotatably penetrated on the insert 601, one end of the threaded long rod 603 extends into the adjusting sleeve 602, a telescopic sleeve 604 is threadedly sleeved on the threaded long rod 603, one end of the telescopic sleeve 604 slides and extends into the corresponding side sliding sleeve 701, and the telescopic sleeve 604 is extended to the corresponding side sliding sleeve 701. One end of the telescopic sleeve 604 is fixedly connected to a dynamic spring base 605, which contacts the corresponding third spring 709. One end of the threaded long rod 603 is fixedly connected to a hand wheel 606. The outer wall of the inserting sleeve 601 is provided with an external threaded surface 607, and a second fastening nut 608 is threadedly sleeved on the external threaded surface 607. A limiting groove 17 is provided on the inner wall of the adjusting cylinder 602. A clamping rod 18 is fixedly connected to the outer wall of the telescopic sleeve 604, and one end of the clamping rod 18 slides and extends into the limiting groove 17.

[0045] The outer walls of multiple center sleeves 703 are fixedly sleeved with fixed reinforcement rings 8, multiple fixed reinforcement rings 8 are opened with circular holes 9, multiple center sleeves 703 are slidably sleeved with dynamic reinforcement rings 10, and a reinforcement rod 11 is fixedly connected between each two adjacent dynamic reinforcement rings 10. One side of multiple dynamic reinforcement rings 10 is fixedly connected with a second fixing bolt 12, and multiple second fixing bolts 12 slide through the corresponding circular holes 9 respectively, and third fastening nuts 13 are threadedly sleeved on multiple second fixing bolts 12.

[0046] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0047] Working principle: When in use, wrap the two inner fixing bases 201 around the steam-water pipe so that the extrusion pad 202 is close to the outside of the steam-water pipe, and then fasten the two adjacent inner ear plates 203 together through the second bolt fastener 204, and then fasten the two adjacent outer ear plates 103 together through the first bolt fastener 104, and then repeat the above steps on the other side of the steam-water pipe to install the external connection component 1 and the inner fixing component 2, and then the operator drills holes in the ground where the installation positions of the two external connection components 1 are aligned, and then the station component 4 is fastened to the ground by screws, and the extension plate 401 at the bottom of the external connection component 1 is aligned with the fastening sleeve 404 and inserted, and the installation height is adjusted so that the first fixing bolt 406 can be aligned with the appropriate adjustment hole 405, and then the extension plate 401 and the fastening sleeve 404 are fastened and connected by the first fixing bolt 406 and the first fastening nut 407 to complete the partial installation;

[0048] Then, align the multiple insert sleeves 601 with the support sleeve 5 in turn and insert them, and tighten the second fastening nut 608 on the external threaded surface 607 to fasten the insert sleeve 601 to the support sleeve 5, then align the side sliding sleeves 701 on one side of the multiple center sleeves 703 with the corresponding adjusting sleeves 602, and fasten them through the flange of the contact part, and at the same time align the dynamic spring base 605 with the corresponding third spring 709, then sleeve the dynamic reinforcement ring 10 on the multiple center sleeves 703, and align the second fixing bolt 12 with the circular hole 9 and insert it, finally screw on the third fastening nut 13 to fasten it, then align the side sliding sleeve 701 on the other side with the adjusting sleeve 602 and connect it through the flange, and then turn the hand wheel 606, the hand wheel 606 drives the telescopic sleeve 604 threadedly connected to it to move through the threaded long rod 603, and the telescopic sleeve 604 drives the dynamic spring base 605 to move, so that it can move against the third spring 709 to adjust its telescopic length, and complete the installation work.

[0049] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] In the description of the present application, it should be noted that the terms "upper", "lower", "inside", "outside", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0051] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vibration reduction device for controlling axial vibration of a steam-water pipeline in a thermal power plant, comprising two outer connection components (1) and two inner fixing components (2), wherein the two inner fixing components (2) are respectively located in corresponding outer connection components (1), and characterized in that: The inner walls of the two outer connection components (1) are fixedly connected with a plurality of radial vibration damping components (3), one end of each of the plurality of radial vibration damping components (3) is connected to the corresponding inner fixed component (2), a station component (4) is arranged below the two outer connection components (1), the outer walls of the outer connection components (1) are fixedly connected with a plurality of support sleeves (5), and the plurality of support sleeves (5) are slidably provided with adjustment components (6), and a plurality of axial vibration damping components (7) are arranged between the two outer connection components (1); The axial vibration reduction component (7) comprises two side sliding sleeves (701) arranged between two outer connection components (1), the two side sliding sleeves (701) are both provided with side fixed sleeves (702) on the sliding sleeves, the two side fixed sleeves (702) are fixedly connected with a same center sleeve (703), a fixed vibration reduction damping sleeve (704) is fixedly connected inside the center sleeve (703), a plurality of damping washers (705) are arranged inside the fixed vibration reduction damping sleeve (704), both ends of the fixed vibration reduction damping sleeve (704) are fixedly connected with fixed spring fixing seats (706), and the two fixed spring fixing seats (706) are fixedly connected to the fixed spring fixing seats (706). One side of the fixed seat (706) is fixedly connected with a prismatic slide bar (707), and a dynamic buffer damping block (708) is slidably sleeved on the two prismatic slide bars (707). One side of the two dynamic buffer damping blocks (708) is fixedly connected with a third spring (709), and one end of the two third springs (709) respectively slides and extends into the corresponding side sliding sleeve (701), and one side of the two dynamic buffer damping blocks (708) is fixedly connected with a fourth spring (710), and one side of the two fourth springs (710) is respectively connected to the corresponding fixed spring fixed seat (706).

2. A vibration reduction device for controlling axial vibration of steam-water pipelines in thermal power plants according to claim 1, characterized in that: The external connection component (1) comprises an upper connection socket (101), a lower connection socket (102) and four external ear plates (103), one side of two corresponding external ear plates (103) are connected to the upper connection socket (101), one side of two corresponding external ear plates (103) are connected to the lower connection socket (102), and two first bolt fasteners (104) are slidably penetrated on each adjacent two external ear plates (103).

3. A vibration reduction device for controlling axial vibration of steam-water pipelines in thermal power plants according to claim 2, characterized in that: The inner fixing assembly (2) comprises two inner fixing seats (201), the inner walls of the two inner fixing seats (201) are fixedly connected with a compression pad (202), the compression pad (202) is made of rubber material, the outer walls of the two inner fixing seats (201) are fixedly connected with two inner ear plates (203), and three second bolt fasteners (204) are slidably penetrated on each of the two adjacent inner ear plates (203).

4. A vibration reduction device for controlling axial vibration of steam-water pipelines in thermal power plants according to claim 3, characterized in that: The radial vibration damping assembly (3) comprises an outer sleeve (301) fixedly connected to the inner wall of the outer connection assembly (1), an inner slide cylinder (302) slidably inserted into the outer sleeve (301), one end of the inner slide cylinder (302) is connected to the outer wall of the inner fixed holder (201), a positioning rod (303) is fixedly connected to the inner wall of the outer sleeve (301), one end of the positioning rod (303) slidably extends into the inner slide cylinder (302), and the positioning rod (3 03) is provided with a first spring (304) on the upper sliding sleeve, one end of the first spring (304) is connected to the inner wall of the outer sleeve (301), one end of the first spring (304) is connected to the inner sliding cylinder (302), one end of the positioning rod (303) is fixedly connected to a baffle (305), one end of the baffle (305) is fixedly connected to a second spring (306), one end of the second spring (306) is connected to the inner wall of the inner sliding cylinder (302).

5. The vibration reduction device for controlling axial vibration of steam-water pipelines in thermal power plants according to claim 2 is characterized in that: The station assembly (4) comprises two extension plates (401) fixedly connected to the bottom of the lower connection base (102); a station base (402) is arranged below the lower connection base (102); two countersunk holes (403) are arranged on the top of the station base (402); two fastening sleeves (404) are fixedly connected to the top of the station base (402); the bottom ends of the two extension plates (401) respectively slide and extend into the corresponding fastening sleeves (404).

6. A vibration reduction device for controlling axial vibration of steam-water pipelines in thermal power plants according to claim 5, characterized in that: The station assembly (4) further comprises a plurality of adjustment holes (405) provided on the two extension plates (401), wherein the plurality of adjustment holes (405) are equidistantly distributed, and two first fixing bolts (406) are slidably penetrated and connected to the two fastening sleeves (404), and the four first fixing bolts (406) respectively slide through the corresponding adjustment holes (405), and the four first fixing bolts (406) are threadedly sleeved with first fastening nuts (407).

7. The vibration reduction device for controlling axial vibration of steam-water pipelines in thermal power plants according to claim 1 is characterized in that: The adjustment assembly (6) comprises an insert cylinder (601) which is slidably penetrated on the corresponding support sleeve (5), one end of the insert cylinder (601) is fixedly connected with an adjustment cylinder (602), one end of the adjustment cylinder (602) is connected to the corresponding side sliding sleeve (701) through a flange, a threaded long rod (603) is rotatably penetrated on the insert cylinder (601), one end of the threaded long rod (603) extends into the adjustment cylinder (602), and a telescopic sleeve (604) is threadedly sleeved on the threaded long rod (603). ), one end of the telescopic sleeve (604) slides and extends into the corresponding side sliding sleeve (701), one end of the telescopic sleeve (604) is fixedly connected to a dynamic spring base (605), and the dynamic spring base (605) is in contact with the corresponding third spring (709), one end of the threaded long rod (603) is fixedly connected to a hand wheel (606), and the outer wall of the insert (601) is provided with an external threaded surface (607), and a second fastening nut (608) is threadedly sleeved on the external threaded surface (607).

8. The vibration reduction device for controlling axial vibration of steam-water pipelines in thermal power plants according to claim 1 is characterized in that: The outer walls of the plurality of center sleeves (703) are fixedly sleeved with fixed reinforcement rings (8), and the plurality of fixed reinforcement rings (8) are opened with circular holes (9). The plurality of center sleeves (703) are slidably sleeved with dynamic reinforcement rings (10), and a reinforcement rod (11) is fixedly connected between each two adjacent dynamic reinforcement rings (10). One side of the plurality of dynamic reinforcement rings (10) is fixedly connected with a second fixing bolt (12), and the plurality of second fixing bolts (12) slide through the corresponding circular holes (9) respectively, and the plurality of second fixing bolts (12) are threadedly sleeved with a third fastening nut (13).

9. The vibration reduction device for controlling axial vibration of steam-water pipelines in thermal power plants according to claim 1 is characterized in that: The outer wall of the side sliding sleeve (701) is fixedly connected to two symmetrically distributed positioning blocks (14), and the positioning blocks (14) slide through the corresponding side fixed sleeve (702). The outer wall of the side sliding sleeve (701) is fixedly connected to four symmetrically distributed side plates (15), and an anti-slip rod (16) is fixedly connected between each two adjacent side plates (15), and the anti-slip rod (16) slides through the corresponding positioning block (14).

10. The vibration reduction device for controlling axial vibration of steam-water pipelines in thermal power plants according to claim 7, characterized in that: The inner wall of the adjusting cylinder (602) is provided with a limiting groove (17), and the outer wall of the telescopic sleeve (604) is fixedly connected with a clamping rod (18), and one end of the clamping rod (18) slides and extends into the limiting groove (17).

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