CN102877682B - Anticorrosion device of thermal power chimney - Google Patents
Anticorrosion device of thermal power chimney Download PDFInfo
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- CN102877682B CN102877682B CN201210336923.5A CN201210336923A CN102877682B CN 102877682 B CN102877682 B CN 102877682B CN 201210336923 A CN201210336923 A CN 201210336923A CN 102877682 B CN102877682 B CN 102877682B
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- 229910000831 Steel Inorganic materials 0.000 claims description 49
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Abstract
The invention discloses an anticorrosion device of a thermal power chimney and a construction method for the anticorrosion device, and belongs to the technical field of anticorrosion. According to the anticorrosion device of the thermal power chimney, a bearing frame of a cylindrical net frame is hung on an annular supporting beam of the chimney through a suspension bearing part on the top of the bearing frame; and a sealed inner-cylinder anticorrosion inner liner which is formed by splicing a plurality of glass reinforced plastic plates is arranged on the inner wall of the bearing frame. The construction method for the anticorrosion device of the thermal power chimney comprises the following steps of: manufacturing the suspension bearing part on the annular supporting beam; manufacturing the bearing frame on the suspension bearing part; hinging the glass reinforced plastic plates on the inner wall of the bearing frame and fixing the glass reinforced plastic plates on the bearing frame to form the inner-cylinder anticorrosion inner liner; and finally, performing reinforcement sealing on the glass reinforced plastic plates. By the anticorrosion device of the thermal power chimney and the construction method for the anticorrosion device, the technical problem that the anticorrosion effect of the conventional chimney inner liner is limited by the basic condition of the inner surface of the chimney when acting on the whole inner surface of the chimney is solved; and the device and the method can be widely applied to various anticorrosion fields.
Description
Technical field
The present invention relates to aseptic technic field, especially a kind of aseptic technic of thermoelectricity chimney.
Background technology
Before wet desulphurization, what coal-fired unit discharged is the flue gas without desulfurization, the flue-gas temperature that enters chimney is (the short-term flue-gas temperature while there is accident can reach 150 ℃～180 ℃) 125 ℃ of left and right, with this understanding, inner wall of stack is in dry state, and flue gas does not directly produce corrosion to inner wall of stack material.
Install after wet desulphurization device the wet flue gas of discharge additional.If without flue gas heat-exchange unit heat temperature raising, enter the flue-gas temperature of chimney at 50 ± 5 ℃, inner wall of stack has serious dewfall, the acid solution trickling that has dewfall to produce along barrel.The temperature of acid solution is in the time of 40 ℃～80 ℃, strong especially to the corrosivity of structural meterials.Take steel as example, the etch ratio 40 ℃～80 ℃ time exceeds approximately 3～8 times in the time of other temperature.
Along with implement continuing to increase of national environmental protection policy dynamics in power industry, coal fired power generation unit must install wet desulphurization device additional by time limit.Roughly have several as follows for the domestic and international existing thermoelectricity chimney anticorrosion erosion technology of wet flue gas installing additional after wet desulphurization device:
(1) the sleeve-type chimney corrosion-proof lining technology of employing titanium steel plate or titanium steel composite board;
(2) technology of the corrosion-proof lining of stickup foamed ceramic brick in steel inner cylinder;
(3) the sleeve-type chimney corrosion-proof lining technology that acidproof concrete building block & acid resistant adhesive mortar is built by laying bricks or stones;
(4) in steel inner cylinder, spray (brush) is coated with the coating antiseptic technology such as glass flake, polyureas, OM coating, Sa Weizhen.
From engineering practice for many years, adopt the sleeve-type chimney corrosion-proof lining technology of titanium steel plate or titanium steel composite board, the high electricity for present stage of cost enterprise, be difficult to bear and promote, and when construction there is solder skip in weld seam, solder joint amount greatly unavoidably, and the poor feature of weld corrosion resistance that the characteristic of titanium material determines in addition easily causes weld to corrode, the technology of pasting the corrosion-proof lining of foamed ceramic brick in steel inner cylinder has numerous engineering practice cases, but because of the higher brickwork joint amount of its construction requirement huge, construction quality is difficult to guarantee domestic foamed ceramic brick in addition, bonding does not pass a test the application of this technology is greatly limited by glue technology, sleeve-type chimney corrosion-proof lining technology operational excellence before unit wet desulphurization that acidproof concrete building block & acid resistant adhesive mortar is built by laying bricks or stones, but along with implement continuing to increase of national environmental protection policy dynamics in power industry, it is serious that coal fired power generation unit installs wet desulphurization device post-etching additional, this technology is not applicable to the wet chimney operation condition after desulfurization, in steel inner cylinder, spray (brush) is coated with the coating antiseptic technology such as glass flake, polyureas, OM coating, Sa Weizhen and confirms to be not suitable for completely chimney anticorrosion through engineering practice for many years.
Summary of the invention
Goal of the invention of the present invention is: for the problem of above-mentioned existence, provide a kind of simple in structure, easy and simple to handle, the anti-corrosive apparatus of the thermoelectricity chimney of heatproof, moisture-proof, good corrosion resistance, solve the anticorrosion Main Function of traditional chimney lining in the overall inner surface of chimney, when protective coating and corrosion-proof lining stickers lining are on chimney inner surface, be subject to the technical problem of chimney inner surface matrix situation restriction; This construction method is easy, and speed of application is fast, and the cycle is short, and operation and maintenance cost is low, and convenient maintenance is with low cost, long service life.
The technical solution used in the present invention is as follows:
The anti-corrosive apparatus of thermoelectricity chimney of the present invention, comprise the supporting frame that is formed cylindric rack by horizontal lacing wire and longitudinal rib interlaced arrangement, the top of described supporting frame is provided with the suspension load receiving part that can be hung on annular brace beam, the top of described longitudinal rib is fixedly connected on and hangs on load receiving part, the inwall of described supporting frame is provided with the inner core corrosion-proof lining being spliced to form by some glass epoxies, and the stitching portion between glass epoxy seals.
Owing to having adopted said structure, described supporting frame is rack cylindraceous, and matches with chimney inherent structure, thereby be convenient to be installed on the inside of chimney, can, for setting up anti-corrosive apparatus of the present invention in newly-built chimney, also can in chimney anticorrosion technological transformation, set up, the scope of application is wide, this supporting frame is welded by interlaced arrangement between horizontal lacing wire and longitudinal rib simultaneously, and form latticedly, and make whole supporting frame structure surely by firm, supporting power is larger, use saferly, the life-span is longer, the top of supporting frame is provided with suspension load receiving part, this suspension load receiving part can be hung on annular brace beam, thereby can be by the overall Action of Gravity Field of supporting frame on annular brace beam, supporting frame is hung on annular brace beam, guarantee integrally-built safe and reliable, steel grid structure cylindraceous is by acting on longitudinal rib all the time load with vertical connection of hanging load-carrying members along gravity direction, the longitudinal rib of the intensive laying of hoop has guaranteed the intensity of structure, laterally lacing wire has guaranteed the rigidity of structure in horizontal plane cross-section, thereby the stability of implementation structure and reliability on the whole, wherein hang load receiving part and can not only provide reliable suspension load-bearing for the frp lining system of splicing, can also provide reliable suspension load-bearing for the frp lining system that entirety is wound around, make the popularization of frp lining guard system there is positive role, make it applied widely, on the inwall of supporting frame, be fixedly installed the inner core corrosion-proof lining being spliced to form by some glass epoxies, and the stitching portion between glass epoxy seals, make sealing between the glass epoxy in whole inner core corrosion-proof lining form overall structure, because glass fiber reinforced plastic has good heatproof, moisture-proof, corrosion resistance, therefore make whole inner core corrosion-proof lining there is good heatproof, moisture-proof, corrosion resistance, make overall antiseptic property good, inner core corrosion-proof lining is spliced by some glass epoxies simultaneously, can form the production of scale systematization mass, thereby reduce production costs, and install also very easy, reduce difficulty of construction, inner core corrosion-proof lining is fixed in supporting frame, guarantee its stable connection, use safety, increase application life.The anti-corrosive apparatus of thermoelectricity chimney of the present invention, using glass epoxy as inner core corrosion-proof lining, improve 15-20 application life than other corrosion-proof linings, cost reduces 30%-40 % with other corrosion-proof linings of effect, and maintenance and replacing are convenient, can be widely used in the corrosion-resistant fields such as thermoelectricity chimney anticorrosion field and petrochemical industry, iron and steel, metallurgy, can effectively solve in chimney anticorrosion technological transformation project other aseptic technics because of the poor and inapplicable problem of chimney matrix situation.
The anti-corrosive apparatus of thermoelectricity chimney of the present invention, described inner core corrosion-proof lining is walked crosswise by some glass epoxies and is hinged to ring, is coated with 4-5 layer glass fiber reinforced plastic strengthening course in this hinged place; Longitudinally be spliced by some glass epoxies, be provided with the resin scale for filling in stitching portion, above the resin scale of stitching portion, be coated with 4-5 layer glass fiber reinforced plastic strengthening course.
Owing to having adopted said structure, inner core corrosion-proof lining is hinged to ring by some glass epoxies on walking crosswise, longitudinally above be spliced successively by the glass epoxy of some Cheng Huan, in order to guarantee the overall antiseptic property of inner core corrosion-proof lining, therefore need to sealing be set in each hinged place and mosaic, wherein can arrange at horizontal hinge place by implementing 4-5 layer glass fiber reinforced plastic and carry out reinforcement, whole interlock hinge is covered, thereby will between the adjacent glass epoxy of lateral arrangement, form sealing, and in the stitching portion of longitudinal glass epoxy, owing to existing gap, therefore need first levelling to be carried out in this gap, in the present invention, adopt the levelling of carrying out of impervious heatproof resin scale, make longitudinally gapless between upper two adjacent glass plates, and then the glass fiber reinforced plastic reinforcement of 4-5 layer is carried out in construction above the resin scale of stitching portion, whole gap is covered, thereby guarantee to form and seal between longitudinal spliced glass plate, finally make inner core corrosion-proof lining form monolithic construction, not only good sealing effect, there is good antiseptic property simultaneously, guarantee the anticorrosion use in chimney transformation or newly-built chimney.
The anti-corrosive apparatus of thermoelectricity chimney of the present invention, described glass epoxy comprises glass steel disc and interlock flap, described interlock flap is arranged at the widthwise edge portion of glass steel disc, between the adjacent glass steel disc of lateral arrangement, forms hinged by pass steel bar in interlock flap.
Owing to having adopted said structure, glass epoxy arranges interlock flap by the limit portion at glass steel disc and forms, because glass epoxy is hinged to ring in lateral arrangement, therefore interlock flap is arranged at the widthwise edge portion of glass steel disc, between two simultaneously adjacent glass epoxies, form hinged, therefore adopting in two adjacent interlock flaps forms hinged through steel bar, the glass epoxy lateral arrangement being hinged is in chimney, because the most situation of chimney is circular, therefore by this hinge arrangement, can make glass epoxy suitable at the inwall of junction and chimney, just can make connecting overall Cheng Huan between glass epoxy, in guarantee inner core corrosion-proof lining, there is larger passage.
The anti-corrosive apparatus of thermoelectricity chimney of the present invention, is provided with some bolts on described interlock flap, and by bolt, the limit portion of interlock flap and glass steel disc is fixed, and described bolt, by being fixed on longitudinal rib, fixes inner core corrosion-proof lining and supporting frame.
Owing to having adopted said structure, limit portion and the interlock flap of glass steel disc are fixed by bolt, owing to being provided with some bolts, thereby can make being connected more surely between the limit portion of glass steel disc and interlock flap lean on, and guarantee that it is stressed; And bolt is only locked in the limit portion of glass steel disc in interlock flap, and the operation of glass epoxy not being bored a hole, thereby can not cause damage to the overall mechanical properties of glass steel disc, guarantee its tensile strength, each glass epoxy is all secured by bolts on longitudinal rib simultaneously, numerous bolts is fixed on whole inner core corrosion-proof lining on supporting frame, the structure that guarantees whole anti-corrosive apparatus is surely leaned on, glass epoxy can not come off easily, guarantee safe and reliablely, therefore guaranteed glass epoxy stable connection transversely; Surely lean in order to guarantee the structure on glass epoxy longitudinally, and have anti-impact force, therefore by glass epoxy, the middle part on is longitudinally arranged at horizontal lacing wire place, makes horizontal lacing wire support whole glass epoxy, guaranteed the safe and reliable of glass epoxy, the life-span is permanent.
The anti-corrosive apparatus of thermoelectricity chimney of the present invention, the thickness of described glass epoxy is
2.5mm, described steel bar adopts screw-thread steel to make.
Owing to having adopted said structure, make the mechanical performance of glass steel disc meet that tensile strength is greater than 140 ℃ of 142MPa, heatproof, resistance to 10% nitration mixture soaks, make its heatproof, moisture-proof, good corrosion resistance; Steel bar adopts screw thread to make, and can bear stressed between interlock hinge, guarantees the reliable and stable of structure, guarantees to use safety.
The anti-corrosive apparatus of thermoelectricity chimney of the present invention, described suspension load receiving part comprises load-bearing support ring and bearing, on described load-bearing support ring, be welded with some bearings, some bearings are distributed on the circumference of load-bearing support ring, described load-bearing support ring can act on annular brace beam upper surface, the L-shaped structure of described bearing, and described bearing acts on upper surface and the inwall of load-bearing support ring simultaneously, the back of described bearing is provided with gusset, the welded top of described gusset and longitudinal rib.
Owing to having adopted said structure, the L-shaped structure of bearing, Main Function is in upper surface and the inwall of load-bearing support ring, also be the inwall top edge that bearing is installed on load-bearing support ring, thereby while guaranteeing the gravity below bearing, gravity can be decomposed on the upper surface and inwall of load-bearing support ring, thereby increase lifting surface area, reduce pressure, avoid stress to concentrate, wherein bearing connects into the load-bearing support ring of loop configuration at annular brace beam upper surface, this load-bearing support ring acts on annular brace beam upper surface, several bearings can be connected in one on the one hand, thereby the upper end that guarantees supporting frame is hung on annular brace beam, on the other hand can be by the stress dispersion part on bearing to load-bearing support ring, avoid stress to concentrate, guarantee the safe and reliable of use, on the back of each bearing, be welded with gusset simultaneously, make the load-bearing of bearing can be stronger, the welded top of longitudinal rib is on gusset simultaneously, longitudinal rib is mainly the gravity that bears glass epoxy, now, longitudinal rib is passed to gravity bearing from gusset, by bearing and load-bearing support ring, power is decomposed to annular brace beam again, thereby whole anti-corrosive apparatus is hung on annular brace beam, guarantee its Stability Analysis of Structures, guarantee safe and reliable.
The anti-corrosive apparatus of thermoelectricity chimney of the present invention, laterally the interlaced arrangement between lacing wire and longitudinal rib forms grid, and size and the grid of each glass epoxy match, and the spacing between wherein said horizontal lacing wire is 1m, and the spacing between longitudinal rib is 0.93-0.97m.
Owing to having adopted said structure, laterally lacing wire and longitudinal rib interlaced arrangement form grid, the structure of whole supporting frame is more surely leaned on, bearing capacity is stronger, size and the grid of each glass epoxy match, make the production that the making of glass epoxy can systematization mass, greatly improve production efficiency, reduce cost of production, laterally the spacing between lacing wire is 1m simultaneously, spacing on can guaranteeing is longitudinally unified, be convenient to unified control and management, because chimney is taper type structure, therefore the top diameter of chimney reduces gradually, for the ease of unified management, the spacing that need to control between longitudinal rib is 0.93-0.97m, determine according to the diameter of actual chimney, when having guaranteed the mass production of production, there is larger flexibility, make it applied widely.
The construction method of the anti-corrosive apparatus of thermoelectricity chimney of the present invention, realizes by following steps:
step 1, some bearings are distributed on supporting frame, will between bearing, be welded into the load-bearing support ring of loop configuration by i iron;
step 2, on bearing, weld longitudinal rib and on longitudinal rib, weld horizontal lacing wire again and form the supporting frame of cylindric rack, requiring spacing between horizontal lacing wire is 1m;
step 3the widthwise edge portion of glass steel disc thick 2.5mm is fixed by bolt and interlock flap, between the glass epoxy of lateral arrangement, realize hinged and Cheng Huan by insert steel bar in interlock flap, glass epoxy laterally by bolt welding on longitudinal rib, the longitudinal middle part of glass epoxy is positioned at horizontal lacing wire place, between the glass epoxy of longitudinally arranging, is spliced to form successively inner core corrosion-proof lining;
step 4, the place of being laterally hinged with of glass epoxy is taked to the glass fiber reinforced plastic reinforcing construction of 4-5 layer, the vertical splicing part of glass epoxy is first used to the levelling of resin scale, then the glass fiber reinforced plastic reinforcing construction that carries out 4-5 layer on the surface of stitching portion forms sealing.
Owing to having adopted said method, can in the inside of chimney, supporting frame be set easily, and inner core corrosion-proof lining is set in supporting frame, the method is easy, be skillfully constructed, speed of application is fast, cycle is short, operation and maintenance cost is low, easy access, and long service life, the method meets the requirement of high-altitude constructing operation to constructor and construction machinery equipment in chimney, the final glass epoxy that forms liner has been brought into play the performance, particularly good machine-shaping and heatproof, corrosion resisting property of composite material excellence; And the construction method of the anti-corrosive apparatus by thermoelectricity chimney of the present invention, both can, for the anticorrosion facility in newly-built chimney, also can set up for the anticorrosion technological transformation of chimney, and the scope of application is wide, can be applicable.The anti-corrosive apparatus of making by the method, using glass epoxy as inner core corrosion-proof lining, improve 15-20 application life than other corrosion-proof linings, cost reduces 30%-40 % with other corrosion-proof linings of effect, and maintenance and replacing are convenient, can be widely used in the corrosion-resistant fields such as thermoelectricity chimney anticorrosion field and petrochemical industry, iron and steel, metallurgy, can effectively solve in chimney anticorrosion technological transformation project other aseptic technics because of the poor and inapplicable problem of chimney matrix situation, highly versatile.
In sum, owing to having adopted technique scheme, the invention has the beneficial effects as follows:
1, the anti-corrosive apparatus of thermoelectricity chimney of the present invention, simple in structure, easy and simple to handle, and heatproof, moisture-proof, good corrosion resistance are with low cost, applied widely;
2, the anti-corrosive apparatus of thermoelectricity chimney of the present invention, solve the anticorrosion Main Function of traditional chimney lining in the overall inner surface of chimney, when protective coating and corrosion-proof lining stickers lining are on chimney inner surface, the technical problem that is subject to the restriction of chimney inner surface matrix situation, can be widely used in the corrosion-resistant fields such as thermoelectricity chimney anticorrosion field and petrochemical industry, iron and steel, metallurgy.
Accompanying drawing explanation
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is the structural representation of the anti-corrosive apparatus of thermoelectricity chimney of the present invention.
Fig. 2 is the local enlarged diagram on Fig. 1 top;
Fig. 3 is the partial enlarged drawing of mounting glass steel plate in Fig. 1;
Fig. 4 is the partial enlarged drawing at Fig. 2 top;
Fig. 5 is the structural representation of glass epoxy in the present invention;
Fig. 6 is the syndeton schematic diagram between glass epoxy in the present invention.
Mark in figure: 1-supporting frame, 2-glass epoxy, 3-hang load receiving part, 4-annular brace beam, the horizontal lacing wire of 1-1-, 1-2-longitudinal rib, 2-1-glass steel disc, 2-2-bolt, 2-3-interlock flap, 2-4-steel bar, 3-1-load-bearing support ring, 3-2-bearing, 3-3-gusset.
The specific embodiment
Disclosed all features in this manual, or step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Disclosed arbitrary feature in this manual (comprising any accessory claim, summary and accompanying drawing), unless narration especially all can be replaced by other equivalences or the alternative features with similar object.,, unless narration especially, each feature is an example in a series of equivalences or similar characteristics.
As shown in Fig. 1 to Fig. 6, the anti-corrosive apparatus of thermoelectricity chimney of the present invention, comprise the supporting frame 1 that is formed cylindric rack by horizontal lacing wire 1-1 and longitudinal rib 1-2 interlaced arrangement, supporting frame 1 is similar to the shape of chimney, and be affixed on the inwall of chimney, wherein laterally the interlaced arrangement between lacing wire 1-1 and longitudinal rib 1-2 forms grid, size and the grid of each glass epoxy 2 match, spacing between wherein said horizontal lacing wire 1-1 is 1m, can be so that uniform layout, because chimney is truncated cone structure, therefore the spacing between longitudinal rib 1-2 is different, therefore for unified management, and make whole supporting frame 1 stressed evenly, spacing between design longitudinal rib 1-2 is 0.93-0.97m, the top of described supporting frame 1 is provided with the suspension load receiving part 3 that can be hung on annular brace beam 4, the top of described longitudinal rib 1-2 is fixedly connected on and hangs on load receiving part 3, whole anti-corrosive apparatus can be hung on the annular brace beam 4 of chimney inside, wherein hang load receiving part 3 and comprise load-bearing support ring 3-1 and bearing 3-2, on described load-bearing support ring 3-1, be welded with some bearing 3-2, some bearing 3-2 are distributed on the circumference of load-bearing support ring 3-1, described load-bearing support ring 3-1 can act on annular brace beam 4 upper surfaces, the L-shaped structure of described bearing 3-2, and described bearing 3-2 acts on upper surface and the inwall of load-bearing support ring 3-1 simultaneously, also be the top edge that bearing 3-2 acts on annular brace beam 4 inwalls, the back of described bearing 3-2 is provided with gusset 3-3, guarantee that its weight capacity is larger, the welded top of described gusset 3-3 and longitudinal rib 1-2.The inwall of described supporting frame 1 is provided with the inner core corrosion-proof lining being spliced to form by some glass epoxies 2, and the shape of this inner core corrosion-proof lining is similar to the shape of supporting frame 1, and is fixed on the inwall of supporting frame 1; Wherein said inner core corrosion-proof lining is walked crosswise by some glass epoxies 2 and is hinged to ring, is coated with 4-5 layer glass fiber reinforced plastic strengthening course in this hinged place; Longitudinally be spliced successively by some glass epoxies 2 that are linked into ring, be provided with the resin scale for filling in stitching portion, above the resin scale of stitching portion, be coated with 4-5 layer glass fiber reinforced plastic strengthening course, guaranteed sealing performance and the antiseptic property of inner core corrosion-proof lining; Described glass epoxy 2 comprises glass steel disc 2-1 and interlock flap 2-3, described interlock flap 2-3 is arranged at the widthwise edge portion of glass steel disc 2-1, the thickness of described glass epoxy 2 is 2.5mm, make the mechanical performance of this glass steel disc meet that tensile strength is greater than 140 ℃ of 142MPa, heatproof, resistance to 10% nitration mixture soaks, hinged by forming through steel bar 2-4 in interlock flap 2-3 between the adjacent glass steel disc 2-1 of lateral arrangement, steel bar 2-4 adopts screw-thread steel to make; On described interlock hinge 2-3, be provided with some bolt 2-2, and by bolt 2-2, the limit portion of interlock flap 2-3 and glass steel disc 2-1 is fixed, described bolt 2-2 is by being fixed on longitudinal rib 1-2, make inner core corrosion-proof lining and supporting frame 1 fixing, the longitudinal middle part of each glass steel disc 2-1 is positioned at horizontal lacing wire 1-1 place simultaneously, guarantees its anti-impact force.
In this example, described bearing 3-2, laterally the parts such as lacing wire 1-1, longitudinal rib 1-2, glass epoxy 4 and bolt 2-2 are several, and concrete number can be according to the size design of actual chimney, then this does not limit, as long as satisfy the demand.
The anti-corrosive apparatus of thermoelectricity chimney of the present invention, by being used for the anticorrosion of flue at chimney internal production glass reinforced plastic inner cylinder corrosion-proof lining, because the antiseptic property of glass fiber reinforced plastic is splendid, therefore make the antiseptic property of whole anti-corrosive apparatus splendid, because frp lining is not easy to be fixed on the inside of chimney, therefore load-bearing support ring 3-1 is set in chimney inside, the top of load-bearing support ring 3-1 hangs on the annular brace beam 4 of chimney inside by hanging load receiving part 3, and frp lining is fixed on load-bearing support ring 3-1, inner wall of stack and load-bearing support ring 3-1 are completely cut off by frp lining, the wet flue gas that thermal power plant is discharged can not enter between inner wall of stack and load-bearing support ring 3-1, and only from frp lining, pass through, chimney is had to extraordinary anti-corrosion protection.Because the height of chimney is higher, can not can form complete sealing by an anti-corrosive apparatus of the present invention, on the height of chimney, there is annular brace beam 4 at interval of a segment distance simultaneously, therefore the anti-corrosive apparatus of thermoelectricity chimney of the present invention, make full use of this feature, be arranged between two annular brace beams 4, also between two annular brace beams 4, be provided with arbitrarily the anti-corrosive apparatus of a thermoelectricity chimney of the present invention, the anti-corrosive apparatus of thermoelectricity chimney of the present invention is hung on the annular brace beam 4 of top, therefore in same chimney, need to arrange multiple, concrete number is determined according to the height of chimney, anti-corrosive apparatus in the most multiple chimneys is connected and sealed, also two frp linings on being about to are longitudinally connected and sealed, being tightly connected on the sealing of this junction is longitudinal with glass epoxy is identical, also the vertical splicing part that is glass epoxy 2 is first used the levelling of resin scale, the glass fiber reinforced plastic reinforcing construction that carries out again 4 or 5 layers on the surface of stitching portion forms sealing, thereby make the frp lining of whole chimney inside form an overall anticorrosion structure, can avoid acid solution to enter on inner wall of stack corrodes, guarantee the application life of chimney.The anti-corrosive apparatus of thermoelectricity chimney of the present invention, improve 15-20 application life than other corrosion-proof linings, cost reduces 30%-40 % with other corrosion-proof linings of effect, and maintenance and replacing are convenient, can be widely used in the corrosion-resistant fields such as thermoelectricity chimney anticorrosion field and petrochemical industry, iron and steel, metallurgy, can effectively solve in chimney anticorrosion technological transformation project other aseptic technics because of the poor and inapplicable problem of chimney matrix situation, highly versatile.
The construction method of the anti-corrosive apparatus of thermoelectricity chimney of the present invention, realizes by following steps:
step 3the widthwise edge portion of glass steel disc 2-1 thick 2.5mm is fixed by bolt 2-2 and interlock flap 2-3, between the glass epoxy 2 of lateral arrangement, realize hinged and Cheng Huan by insert steel bar 2-4 in interlock flap 2-3, laterally being welded on longitudinal rib 1-2 by bolt 2-2 of glass epoxy 2, the longitudinal middle part of glass epoxy 2 is positioned at horizontal lacing wire 1-1 place, between the glass epoxy 2 of longitudinally arranging, be spliced to form successively inner core corrosion-proof lining, make glass epoxy 2 stick the inwall of whole supporting frame 1;
step 4the place of being laterally hinged with of glass epoxy 2 is taked to the glass fiber reinforced plastic reinforcing construction of 4 or 5 layers, the vertical splicing part of glass epoxy 2 is first used to the levelling of resin scale, the glass fiber reinforced plastic reinforcing construction that carries out again 4 or 5 layers on the surface of stitching portion forms sealing, thereby makes whole inner core corrosion-proof lining form integrated sealing structure.
The construction method of the anti-corrosive apparatus of thermoelectricity chimney of the present invention, can in the inside of chimney, supporting frame be set easily, and inner core corrosion-proof lining is set in supporting frame, the method is easy, be skillfully constructed, speed of application is fast, cycle is short, operation and maintenance cost is low, easy access, and long service life, the method meets the requirement of high-altitude constructing operation to constructor and construction machinery equipment in chimney, the final glass epoxy that forms liner has been brought into play the performance, particularly good machine-shaping and heatproof, corrosion resisting property of composite material excellence; And the construction method of the anti-corrosive apparatus by thermoelectricity chimney of the present invention, both can, for the anticorrosion facility in newly-built chimney, also can set up for the anticorrosion technological transformation of chimney, and the scope of application is wide, can be applicable.
The present invention is not limited to the aforesaid specific embodiment.The present invention expands to any new feature or any new combination disclosing in this manual, and the arbitrary new method disclosing or step or any new combination of process.
Claims (7)
1. the anti-corrosive apparatus of a thermoelectricity chimney, it is characterized in that: it comprises the supporting frame (1) that is formed cylindric rack by horizontal lacing wire (1-1) and longitudinal rib (1-2) interlaced arrangement, the top of described supporting frame (1) is provided with the suspension load receiving part (3) that can be hung on annular brace beam (4), the top of described longitudinal rib (1-2) is fixedly connected on and hangs on load receiving part (3), the inwall of described supporting frame (1) is provided with the inner core corrosion-proof lining being spliced to form by some glass epoxies (2), and the stitching portion between glass epoxy (2) seals.
2. the anti-corrosive apparatus of thermoelectricity chimney as claimed in claim 1, is characterized in that: described inner core corrosion-proof lining is walked crosswise by some glass epoxies (2) and is hinged to ring, is coated with 4-5 layer glass fiber reinforced plastic strengthening course in this hinged place; Longitudinally be spliced by some glass epoxies (2), be provided with the resin scale for filling in stitching portion, above the resin scale of stitching portion, be coated with 4-5 layer glass fiber reinforced plastic strengthening course.
3. the anti-corrosive apparatus of thermoelectricity chimney as claimed in claim 2, it is characterized in that: described glass epoxy (2) comprises glass steel disc (2-1) and interlock flap (2-3), described interlock flap (2-3) is arranged at the widthwise edge portion of glass steel disc (2-1), between the adjacent glass steel disc (2-1) of lateral arrangement, forms hinged by pass steel bar (2-4) in interlock flap (2-3).
4. the anti-corrosive apparatus of thermoelectricity chimney as claimed in claim 3, it is characterized in that: on described interlock flap (2-3), be provided with some bolts (2-2), and by bolt (2-2), interlock flap (2-3) is fixed with the limit portion of glass steel disc (2-1), described bolt (2-2) is upper by being fixed on longitudinal rib (1-2), makes inner core corrosion-proof lining and supporting frame (1) fixing.
5. the anti-corrosive apparatus of thermoelectricity chimney as claimed in claim 4, is characterized in that: the thickness of described glass epoxy (2) is
2.5mm, described steel bar (2-4) adopts screw-thread steel to make.
6. the anti-corrosive apparatus of the thermoelectricity chimney as described in one of claim 1 to 5, it is characterized in that: described suspension load receiving part (3) comprises load-bearing support ring (3-1) and bearing (3-2), on described load-bearing support ring (3-1), be welded with some bearings (3-2), some bearings (3-2) are distributed on the circumference of load-bearing support ring (3-1), described load-bearing support ring (3-1) can act on annular brace beam (4) upper surface, the L-shaped structure of described bearing (3-2), and described bearing (3-2) acts on upper surface and the inwall of load-bearing support ring (3-1) simultaneously, the back of described bearing (3-2) is provided with gusset (3-3), the welded top of described gusset (3-3) and longitudinal rib (1-2).
7. the anti-corrosive apparatus of the thermoelectricity chimney as described in one of claim 1 to 5, it is characterized in that: laterally the interlaced arrangement between lacing wire (1-1) and longitudinal rib (1-2) forms grid, size and the grid of each glass epoxy (2) match, spacing between wherein said horizontal lacing wire (1-1) is 1m, and the spacing between longitudinal rib (1-2) is 0.93-0.97m.
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| CN201410065119.7A CN103982079B (en) | 2012-09-13 | 2012-09-13 | A kind of construction method of anti-corrosive apparatus of thermoelectricity chimney |
| CN201210336923.5A CN102877682B (en) | 2012-09-13 | 2012-09-13 | Anticorrosion device of thermal power chimney |
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| CN201210336923.5A CN102877682B (en) | 2012-09-13 | 2012-09-13 | Anticorrosion device of thermal power chimney |
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| CN201210336923.5A Active CN102877682B (en) | 2012-09-13 | 2012-09-13 | Anticorrosion device of thermal power chimney |
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| CN105841173B (en) * | 2016-05-18 | 2017-12-15 | 山东鲍尔浦塑胶股份有限公司 | A kind of inner wall of stack anti-corrosion high-molecular polythene layer and its construction method |
| CN106481514A (en) * | 2016-10-08 | 2017-03-08 | 霍尔果斯新国金新能源科技有限公司 | Tower and its steel reinforcement cage |
| CN106499591A (en) * | 2016-10-08 | 2017-03-15 | 霍尔果斯新国金新能源科技有限公司 | Tower and its steel reinforcement cage |
| CN109028119A (en) * | 2018-08-03 | 2018-12-18 | 青铜峡铝业发电有限责任公司 | A kind of anti-corrosion chimney and its construction method of installation |
| CN110065974B (en) * | 2018-09-30 | 2023-12-05 | 内蒙古久科康瑞环保科技有限公司 | Modular assembled pool body |
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| CN102877682A (en) | 2013-01-16 |
| CN103982079A (en) | 2014-08-13 |
| CN103982079B (en) | 2016-03-30 |
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