CN108591661B - Nonmetal compensator for power plant boiler flue gas conveying pipeline - Google Patents

Nonmetal compensator for power plant boiler flue gas conveying pipeline Download PDF

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Publication number
CN108591661B
CN108591661B CN201810520702.0A CN201810520702A CN108591661B CN 108591661 B CN108591661 B CN 108591661B CN 201810520702 A CN201810520702 A CN 201810520702A CN 108591661 B CN108591661 B CN 108591661B
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China
Prior art keywords
assembly
connecting piece
guide cylinder
spring
compensator
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CN201810520702.0A
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CN108591661A (en
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朱家浩
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Yongkang Jianling Trade Co ltd
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Yongkang Jianling Trade Co ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L51/00Expansion-compensation arrangements for pipe-lines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J13/00Fittings for chimneys or flues 
    • F23J13/04Joints; Connections

Abstract

The invention discloses a non-metal compensator for a power plant boiler flue gas conveying pipeline, which comprises a left connector support, a right connector support, a skin, a flow guide assembly, a non-metal heat insulation assembly and a pressing assembly, wherein the left connector support and the right connector support are fixedly connected with the left connector support and the right connector support; the two ends of the skin are respectively connected with the left interface bracket and the right interface bracket through the pressing assembly, the guide assembly comprises a first guide cylinder and a second guide cylinder which are sleeved with each other, and an elastic assembly and a waterproof assembly are arranged between the first guide cylinder and the second guide cylinder; and a space enclosed by the flow guide assembly and the skin is filled with the non-metal heat insulation assembly. The invention discloses a non-metal compensator for a power plant boiler flue gas conveying pipeline, which effectively reduces the influence of condensed water on the compensator, prolongs the service life of the compensator and improves the compensation amount of the compensator.

Description

Nonmetal compensator for power plant boiler flue gas conveying pipeline
Technical Field
The invention relates to the field of power equipment, in particular to a non-metal compensator for a power plant boiler flue gas conveying pipeline.
Background
The power system mainly comprises two types of power generation equipment and power supply equipment, wherein the power generation equipment mainly comprises a power station boiler, a steam turbine, a gas turbine, a water turbine, a generator, a transformer and the like, and the power supply equipment mainly comprises power transmission lines, transformers, contactors and the like with various voltage grades.
With the high-speed development of the economy of China, a power station boiler is one of three large power generation devices and is the basic power for the economic development of China. In recent years, with the change of the idea of environmental protection and energy conservation, a large number of power station boilers with low energy efficiency and heavy pollution are closed. At present, under the promotion of positive factors such as the improvement of environmental protection technology, the reduction of power generation cost, the increase of power demand and the like, the future development prospect of the thermal power industry is optimistic, and the improvement of a power station boiler is an important item.
The emission of boiler flue gas needs desulfurization, denitrification and dust removal treatment, and the treated flue gas can be directly discharged after reaching the national emission standard.
The conveying pipeline of flue gas has following problem when carrying among the prior art: 1. when organic waste gas such as carbon dioxide, sulfur dioxide and the like with a large content in the flue gas is conveyed, a certain corrosion effect is generated on the conveying pipeline. 2. Because the temperature of boiler flue gas is higher, consequently, when carrying, can cause pipeline's expend with heat and contract with cold, lead to pipeline to warp, in the serious case, still can cause pipeline to leak.
The nonmetal compensator is mainly used for conveying dust-containing hot air and corrosive flue gas in a flue gas and air pipeline system, effectively absorbs the pipeline deformation formed by expansion and contraction of the flue gas on the pipeline, absorbs displacement and reduces the deformation generated by the expansion and contraction of the pipeline. The normal operation of pipeline can be guaranteed, and the leakproofness requirement can be satisfied simultaneously again.
The nonmetal compensator in the prior art has the following problems when being used in a flue gas discharge pipeline of a power plant: 1. because the temperature of the flue gas is high, the temperature difference between the inside and the outside of the conveying pipeline is large, water vapor in the flue gas is easy to condense on the inner wall of the nonmetal compensator, condensed water is easy to permeate into a skin and nonmetal materials filled in the compensator, the service life of the nonmetal compensator is shortened, the maintenance cost is increased, when the compensator is maintained and replaced, the whole waste gas conveying system needs to be shut down, and the working efficiency is seriously influenced; 2. Dust in the flue gas is easy to accumulate in the compensator, so that the compensation amount of the compensator is influenced; 3. the temperature of flue gas is too high, permeates into the compensator easily, and high temperature constitutes the security threat to non-metallic material, and after the long-term use, leads to the leakproofness of compensator to worsen, can not satisfy the industrial demand.
Therefore, a new non-metal compensator is urgently needed to effectively solve the above problems.
Disclosure of Invention
In order to solve the problems, the invention discloses a non-metal compensator for a power plant boiler flue gas conveying pipeline, which effectively reduces the influence of condensed water on the compensator, prolongs the service life of the compensator and improves the compensation amount of the compensator.
In order to achieve the above purpose, the invention provides the following technical scheme:
a non-metal compensator for a power plant boiler flue gas conveying pipeline comprises a left connector support, a right connector support, a skin, a flow guide assembly, a non-metal heat insulation assembly and a pressing assembly; two ends of the skin are respectively connected with the left interface bracket and the left interface bracket through a compression assembly, and the compression assembly comprises a pressure plate and a bolt nut; the flow guide assembly comprises a first flow guide cylinder and a second flow guide cylinder which are sleeved with each other, one end of the first flow guide cylinder is fixedly connected to the left interface bracket, and a gap is reserved between the other end of the first flow guide cylinder and the right interface bracket; one end of the second guide cylinder is fixedly connected to the right interface bracket, and a gap is reserved between the other end of the second guide cylinder and the left interface bracket; an elastic component and a waterproof component are arranged between the first guide cylinder and the second guide cylinder; the elastic component comprises a spring and a connecting piece; two ends of the spring are respectively connected with the guide cylinder through connecting pieces; the waterproof assembly comprises more than 1 baffle and a water absorbing layer; one end of the baffle is fixedly connected to the guide shell, and a gap is reserved between the other end of the baffle and the guide shell; the water absorption layer is positioned between the elastic component and the baffle; a space enclosed by the flow guide assembly and the skin is filled with a non-metal heat insulation assembly, and the non-metal heat insulation assembly comprises a steel wire mesh and a heat insulation material layer; and the steel wire mesh is wrapped with a heat insulation material layer.
As an improvement of the invention, the elastic component is detachably connected with the guide shell. The elastic component is detachably connected with the guide shell, and has the following advantages: 1. the elastic component can effectively absorb radial displacement, transverse displacement and angular displacement and can further play a good compensation role; 2. because the elasticity of the spring in the elastic component is reduced after the spring is used for a period of time, the spring needs to be replaced in time, the maintenance cost of the whole equipment can be reduced, and a good compensation effect can be kept; 3. the detachable construction of spring, after dismantling elastic component, can conveniently change the layer that absorbs water, because the material that absorbs water in the layer that absorbs water is after using for a period, and hydroscopicity can reduce, consequently need regularly change the layer that absorbs water. Nonmetal compensator among the prior art, some can be equipped with the vapor passageway in nonmetal heat preservation, discharge vapor, but this kind of setting, very big reduction the leakproofness of the heat preservation of compensator, the flue gas is revealed easily, and the heat preservation effect also can reduce. The elastic component and the waterproof component are arranged, so that water vapor can be effectively adsorbed, the sealing performance of the heat-insulating layer is not reduced, the compensation amount can be increased, and multiple purposes are achieved.
Preferably, the elastic assembly comprises an upper connecting piece, a lower connecting piece and a spring, grooves are formed in the upper connecting piece and the lower connecting piece, the spring is connected in the grooves of the upper connecting piece and the lower connecting piece in a sliding mode, the upper connecting piece is detachably connected with the second guide cylinder, and the lower connecting piece is detachably connected with the first guide cylinder. The upper connecting piece and the lower connecting piece are connected with the guide shell in a detachable connection mode to realize detachment. The bolt connection and the sticky mode in the prior art can be adopted for dismounting, and the buckle connection mode can also be adopted for dismounting.
Preferably, the elastic assembly comprises an upper base, a lower base, an upper spring, a lower spring and a middle connecting piece, one end of the upper base is fixedly connected with the second guide cylinder, the other end of the upper base is fixedly connected with the upper spring, the upper spring is detachably connected with the middle connecting piece, one end of the lower base is fixedly connected with the second guide cylinder, the other end of the lower base is fixedly connected with the lower spring, and the lower spring is detachably connected with the middle connecting piece. The detachable connection of the spring and the middle connecting piece is displayed by adopting modes such as a hook hanging ring, a buckle and the like in the prior art.
Preferably, the nonmetal compensator for the power plant boiler flue gas conveying pipeline further comprises an auxiliary compensation assembly, wherein the auxiliary compensation assembly comprises a left vertical plate, a right vertical plate and a compensation rod; the left vertical plate is vertically connected with the left interface bracket, and the right vertical plate is vertically connected with the right interface bracket; the vertical plate structure is characterized in that a left compensating rod, a right compensating rod and a middle compensating rod are arranged between the left vertical plate and the right vertical plate, one end of the left compensating rod is connected with the left vertical plate, the other end of the left compensating rod is connected with the middle compensating rod through a pin shaft, the middle compensating rod is connected with one end of the right compensating rod through a pin shaft, and the other end of the right compensating rod is connected with the right vertical plate. The auxiliary compensation assembly comprises three compensation rods which are mutually connected through pin shafts, mutual force conversion can be achieved among the three compensation rods, and compensation amount, particularly radial compensation amount, is improved.
Preferably, the left interface support is provided with an ear plate, and the right interface support is also provided with an ear plate. The ear plate can play a role in strengthening.
Preferably, a dustproof pad is further arranged between the first guide cylinder and the second guide cylinder and connected to the guide cylinder through a fixing fork.
Preferably, the skin is of a multi-layer composite structure, the outer layer is a stainless steel wire mesh, and the inner layer can be one or more of corrosion-resistant rubber cloth, aluminum silicate fiber cotton and ceramic fiber.
Preferably, the water absorbing layer is of a multi-layer composite structure, the outer layer is a fiber cloth layer, and the inner layer is filled with waterproof particles. The waterproof particles can adopt one or more of water absorbing particles such as activated carbon particles, diatomite particles, resin particles and the like.
The invention has the beneficial effects that: 1. the compensator of the invention can effectively absorb the radial and transverse displacement of the pipeline and realize effective compensation; the influence of expansion with heat and contraction with cold on the pipeline is reduced, and the service life and the effect of the pipeline are prolonged; 2. according to the compensator, the nonmetal heat-insulating component realizes effective heat insulation, reduces the temperature difference between the inside and the outside of the pipe and reduces the condensation of water vapor; 3. according to the compensator disclosed by the invention, the condensed water is absorbed by the water absorption layer, so that the corrosion of the condensed water on the compensator is avoided, the service life of the compensator is prolonged, and the compensation effect is good; 4. the compensator is novel in structural arrangement and not easy to accumulate dust; 5. the compensator has the advantages of good sealing effect, difficult leakage of smoke and long service life.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is a schematic view of the elastic member according to embodiment 1 of the present invention;
FIG. 3 is a schematic view of the elastic member according to embodiment 2 of the present invention;
FIG. 4 is an enlarged view of a portion of the present invention at A in FIG. 1;
FIG. 5 is a schematic structural view of embodiment 3 of the present invention;
fig. 6 is a plan view of a compensating rod according to embodiment 3 of the present invention.
List of reference numerals: 100. a flue gas discharge pipe; 1. a left interface bracket; 2. a right interface bracket; 3. covering a skin; 4. a flow guide assembly; 41. a first draft tube; 42. a second draft tube; 5. a non-metallic thermal insulation component; 6. a compression assembly; 61. pressing a plate; 62. A bolt and a nut; 7. an elastic component; 71. a spring; 72. a connecting member; 721. an upper connecting piece; 722. a lower connecting piece; 723. an upper base; 724. a lower base; 725. an upper spring; 726. a lower spring; 727. a middle connecting piece; 73. a groove; 8. a waterproof assembly; 81. a baffle plate; 82. a water-absorbing layer; 9. an auxiliary compensation component; 91. a left vertical plate; 92. a right vertical plate; 93. a compensation lever; 931. a left compensation rod; 932. a right compensation lever; 933. a middle compensation rod; 94. a pin shaft; 10. an ear plate; 11. a dust-proof pad; 12. a fixed fork.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention.
In the description of the present invention, it is to be understood that the terms "length," "width," "thickness," "upper," "lower," "left," "right," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Example 1
As shown in fig. 1, 2 and 4, the nonmetal compensator for the flue gas conveying pipeline of the power plant boiler comprises a left connector support 1, a right connector support 2, a skin 3, a flow guide assembly 4, a nonmetal heat preservation assembly 5 and a pressing assembly 6. Wherein, the left and right interface brackets are connected with the smoke discharge pipe 100. Two ends of the skin are respectively connected with the left interface bracket and the left interface bracket through a pressing component 6, and the pressing component comprises a pressing plate 61 and a bolt nut 62; the flow guide assembly comprises a first flow guide cylinder 41 and a second flow guide cylinder 42 which are sleeved with each other, one end of the first flow guide cylinder is fixedly connected to the left interface bracket, and a gap is reserved between the other end of the first flow guide cylinder and the right interface bracket; one end of the second guide cylinder is fixedly connected to the right interface bracket, and a gap is reserved between the other end of the second guide cylinder and the left interface bracket; an elastic component 7 and a waterproof component 8 are arranged between the first guide cylinder and the second guide cylinder; the elastic component comprises a spring 71 and a connecting piece 72; two ends of the spring are respectively connected with the guide cylinder through connecting pieces; the waterproof component comprises more than 1 baffle 81 and a water absorbing layer 82; one end of the baffle is fixedly connected to the guide shell, and a gap is reserved between the other end of the baffle and the guide shell; the water absorption layer is positioned between the elastic component and the baffle; a space enclosed by the diversion assembly and the skin is filled with a non-metal heat insulation assembly, and the non-metal heat insulation assembly comprises a steel wire mesh and a heat insulation material layer; the steel wire mesh is wrapped with a heat insulation material layer.
In this embodiment, the baffle of the waterproof assembly includes two baffles arranged at intervals, one end of one baffle is fixedly connected with the first guide cylinder, and a gap is reserved between the other end of the baffle and the second guide cylinder; one section fixed connection second draft tube of another baffle, leave the clearance between the other end and the second draft tube, form flue gas circulation passageway between two baffles, flue gas accessible circulation passageway, the cooling between the baffle, the comdenstion water can be directly absorbed absorbing layer vicinity, waterproof component can effectually avoid the flue gas to enter into covering department, organic waste gas in avoiding the flue gas causes the erosion to the covering, the life of extension covering, more importantly, the layer that absorbs water can directly adsorb the comdenstion water, avoid the comdenstion water to cause the influence to insulation material and covering.
As an improvement of the invention, the elastic component is detachably connected with the guide shell. The elastic component is detachably connected with the guide shell, and has the following advantages: 1. the elastic component can effectively absorb radial displacement, transverse displacement and angular displacement and can further play a good compensation role; 2. because the elasticity of the spring in the elastic component is reduced after the spring is used for a period of time, the spring needs to be replaced in time, the maintenance cost of the whole equipment can be reduced, and a good compensation effect can be kept; 3. the detachable construction of spring, after dismantling elastic component, can conveniently change the layer that absorbs water, because the material that absorbs water in the layer that absorbs water is after using for a period, and hydroscopicity can reduce, consequently need regularly change the layer that absorbs water. Nonmetal compensator among the prior art, some can be equipped with the vapor passageway in nonmetal heat preservation, discharge vapor, but this kind of setting, very big reduction the leakproofness of the heat preservation of compensator, the flue gas is revealed easily, and the heat preservation effect also can reduce. The elastic component and the waterproof component are arranged, so that water vapor can be effectively adsorbed, the sealing performance of the heat-insulating layer is not reduced, the compensation amount can be increased, and multiple purposes are achieved.
In this embodiment, the elastic component includes an upper connecting member 721, a lower connecting member 722, and a spring 71, wherein the upper connecting member and the lower connecting member are both provided with a groove 73, the spring is slidably connected in the grooves of the upper connecting member and the lower connecting member, and the depth of the groove and the length of the spring are reasonably set, so that the spring can slide up and down in the groove, but cannot slide out. After a certain period of use, the elasticity of the spring becomes weak and the spring can be replaced. The upper connecting piece is detachably connected with the second guide shell, and the lower connecting piece is detachably connected with the first guide shell. The upper connecting piece and the lower connecting piece are connected with the guide shell in a detachable connection mode to realize detachment. The bolt connection and the sticky mode in the prior art can be adopted for dismounting, and the buckle connection mode can also be adopted for dismounting.
Preferably, the left interface bracket is provided with an ear plate 10, and the right interface bracket is also provided with an ear plate. The ear plate can play a role in strengthening.
In this embodiment, a dustproof pad 11 is further disposed between the first guide shell and the second guide shell, and the dustproof pad is connected to the guide shell through a fixing fork 12.
In this embodiment, the skin has a multi-layer composite structure, the outer layer is a stainless steel wire mesh, and the inner layer may be one or more of corrosion-resistant rubber cloth, aluminum silicate fiber cotton, and ceramic fiber.
In this embodiment, the water-absorbing layer is a multi-layer composite structure, the outer layer is a fiber cloth layer, the inner layer can be filled with waterproof particles, and the waterproof particles can be one or more of water-absorbing particles such as activated carbon particles, diatomite particles, resin particles, and the like.
Example 2
As shown in fig. 3, in this embodiment, the elastic assembly includes an upper base 723, a lower base 724, an upper spring 725, a lower spring 726, and a middle connector 727, wherein one end of the upper base is fixedly connected to the second guide cylinder, the other end of the upper base is fixedly connected to the upper spring, the upper spring is detachably connected to the middle connector, one end of the lower base is fixedly connected to the second guide cylinder, the other end of the lower base is fixedly connected to the lower spring, and the lower spring is detachably connected to the middle connector. The detachable connection of the spring and the middle connecting piece is displayed by adopting modes such as a hook hanging ring, a buckle and the like in the prior art.
The rest of the structure may adopt the structure of embodiment 1, and is not described herein again.
Example 3
As shown in fig. 5 and 6, the nonmetal compensator for the power plant boiler flue gas conveying pipeline further comprises an auxiliary compensation assembly 9, wherein the auxiliary compensation assembly comprises a left vertical plate 91, a right vertical plate 92 and a compensation rod 93; the left vertical plate is vertically connected with the left interface bracket, and the right vertical plate is vertically connected with the right interface bracket; a left compensation rod 931, a right compensation rod 932 and a middle compensation rod 933 are arranged between the left vertical plate and the right vertical plate, one end of the left compensation rod is connected with the left vertical plate, the other end of the left compensation rod is connected with the middle compensation rod through a pin shaft 94, the middle compensation rod is connected with one end of the right compensation rod through a pin shaft, and the other end of the right compensation rod is connected with the right vertical plate. The auxiliary compensation assembly comprises three compensation rods which are mutually connected through pin shafts, mutual force conversion can be achieved among the three compensation rods, and compensation amount, particularly radial compensation amount, is improved.
The rest of the structure may adopt the structure of embodiment 1, and is not described herein again.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.

Claims (3)

1. The utility model provides a power boiler flue gas pipeline uses nonmetal compensator which characterized in that: the device comprises a left interface bracket (1), a right interface bracket (2), a skin (3), a flow guide assembly (4), a nonmetal heat preservation assembly (5) and a compression assembly (6); two ends of the skin (3) are respectively connected with the left interface bracket (1) and the right interface bracket (2) through a compression assembly (6), and the compression assembly (6) comprises a pressure plate (61) and a bolt nut (62); the flow guide assembly (4) comprises a first flow guide cylinder (41) and a second flow guide cylinder (42) which are sleeved with each other, one end of the first flow guide cylinder (41) is fixedly connected to the left interface support (1), and a gap is reserved between the other end of the first flow guide cylinder (41) and the right interface support (2); one end of the second guide cylinder (42) is fixedly connected to the right interface bracket (2), and a gap is reserved between the other end of the second guide cylinder (42) and the left interface bracket (1); an elastic component (7) and a waterproof component (8) are arranged between the first guide cylinder (41) and the second guide cylinder (42); the elastic component (7) comprises a spring (71) and a connecting piece (72); two ends of the spring (71) are respectively connected with the guide shell through a connecting piece (72); the waterproof assembly (8) comprises more than 1 baffle (81) and a water absorbing layer (82); one end of the baffle (81) is fixedly connected to the guide shell, and a gap is reserved between the other end of the baffle and the guide shell; the water absorption layer (82) is positioned between the elastic component (7) and the baffle (81); a space enclosed by the flow guide assembly (4) and the skin (3) is filled with a non-metal heat insulation assembly (5), and the non-metal heat insulation assembly (5) comprises a steel wire mesh and a heat insulation material layer; the steel wire mesh is wrapped with a heat insulation material layer; the elastic component (7) is detachably connected with the guide shell; the nonmetal compensator for the power plant boiler flue gas conveying pipeline further comprises an auxiliary compensation assembly (9), wherein the auxiliary compensation assembly (9) comprises a left vertical plate (91), a right vertical plate (92) and a compensation rod (93); the left vertical plate (91) is vertically connected with the left connector support (1), and the right vertical plate (92) is vertically connected with the right connector support (2); a left compensation rod (931), a right compensation rod (932) and a middle compensation rod (933) are arranged between the left vertical plate (91) and the right vertical plate (92), one end of the left compensation rod (931) is connected with the left vertical plate (91), the other end of the left compensation rod (931) is connected with the middle compensation rod (933) through a pin shaft (94), the middle compensation rod (933) is connected with one end of the right compensation rod (932) through a pin shaft (94), and the other end of the right compensation rod (932) is connected with the right vertical plate (92); the left interface bracket (1) is provided with an ear plate (10), and the right interface bracket (2) is also provided with the ear plate (10); a dustproof pad (11) is further arranged between the first guide cylinder (41) and the second guide cylinder (42), and the dustproof pad (11) is connected to the guide cylinders through fixing forks (12);
the elastic assembly (7) comprises an upper connecting piece (721), a lower connecting piece (722) and a spring (71), grooves (73) are formed in the upper connecting piece (721) and the lower connecting piece (722), the spring (71) is connected in the grooves (73) of the upper connecting piece (721) and the lower connecting piece (722) in a sliding mode, the upper connecting piece (721) is detachably connected with the second guide shell (42), and the lower connecting piece (722) is detachably connected with the first guide shell (41);
or, the elastic component (7) comprises an upper base (723), a lower base (724), an upper spring (725), a lower spring (726) and a middle connecting piece (727), one end of the upper base (723) is fixedly connected with the second guide shell (42), the other end of the upper base is fixedly connected with the upper spring (725), the upper spring (725) is detachably connected with the middle connecting piece (727), one end of the lower base (724) is fixedly connected with the second guide shell (42), the other end of the lower base is fixedly connected with the lower spring (726), and the lower spring (726) is detachably connected with the middle connecting piece (727).
2. The non-metallic compensator for a flue gas duct of a power plant boiler of claim 1, characterized in that: the skin (3) is of a multi-layer composite structure, the outer layer is a stainless steel wire mesh, and the inner layer can be one or more of corrosion-resistant rubber cloth, aluminum silicate fiber cotton and ceramic fiber.
3. The non-metallic compensator for a flue gas duct of a power plant boiler of claim 1, characterized in that: the water absorbing layer (82) is of a multi-layer composite structure, the outer layer is a fiber cloth layer, and the inner layer is filled with waterproof particles.
CN201810520702.0A 2018-05-28 2018-05-28 Nonmetal compensator for power plant boiler flue gas conveying pipeline Expired - Fee Related CN108591661B (en)

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Publication number Priority date Publication date Assignee Title
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CN105065672A (en) * 2015-07-08 2015-11-18 山东立人能源科技有限公司 Revolution gas retort sealing device
CN205173827U (en) * 2015-12-07 2016-04-20 诸暨市蓝天非金属工艺研究所 Nonmetal expansion joint
CN206299940U (en) * 2016-10-31 2017-07-04 诸暨市沣泽动力机械有限公司 Modified combustion engine non-metal expansion joint
CN206290889U (en) * 2016-12-09 2017-06-30 辽宁华威热力设备有限公司 High-temperature flue gas non-metal compensator
CN206449344U (en) * 2017-01-11 2017-08-29 江苏星源电站冶金设备制造有限公司 A kind of non-metal compensator
CN206802600U (en) * 2017-04-24 2017-12-26 北京航天凌云波纹管有限公司 A kind of linear sealing non-metal compensator

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