Chimney with high temperature resistance and corrosion resistance functions
Technical Field
The utility model relates to the technical field of chimney structures, in particular to a chimney with high temperature resistance and corrosion resistance.
Background
The chimney development history with high temperature resistance and corrosion resistance is subjected to advanced technologies from an early simple brushing method to modern adoption of glass fiber reinforced plastic lining, titanium alloy lining and the like. A
The early chimney corrosion prevention technology mainly adopts a simple brushing method, the method has a plurality of problems, such as difficult quality assurance of brushing, is easy to generate the phenomena of uneven coating, cracking and the like, and pollution in the brushing process are easy to generate, and affects the environment. with the development of technology, modern chimney corrosion prevention technology has adopted more advanced technology, includes glass fiber reinforced plastic lining, titanium alloy lining, etc. the technologies have the characteristics of corrosion resistance, abrasion resistance, high temperature resistance and the like, can effectively prevent the inner wall of the chimney from being corroded by flue gas, can improve the service life of the chimney, can reduce maintenance cost, and can reduce environmental pollution. A
However, the high temperature resistance of the glass fiber reinforced plastic chimney has certain defects. glass fiber reinforced plastic chimney is easy to lose strength and rigidity under high temperature condition. in the field of high temperature processes such as thermal power generation, the glass fiber reinforced plastic chimney needs to bear high temperature, high pressure, dust and other extreme environments, is easy to crack, deformation and other problems, and seriously influences the durability and stability of the chimney. and glass fiber reinforced plastic chimney has poor long-term temperature resistance, the strength of general polyester FRP is obviously reduced at more than 50 ℃, is generally used under 100 ℃, and the strength of general epoxy FRP is obviously reduced at more than 60 ℃ and . although high temperature resistant resins may be selected, enables long term operation at 200-300 ℃, , which still limits its application in higher temperature environments. A
Therefore, when using the glass fiber reinforced plastic chimney , needs to pay attention to the limitation of high temperature resistance, and may deform, crack or fail in , especially under the condition of extremely high temperature, such as fire, etc. furthermore, the service life of the glass reinforced plastic chimney is relatively short, and is generally about 10 years, mainly because the resin in the structure can be gradually aged in long-term use, , so that the durability, strength and stability of the chimney are reduced.
The titanium alloy chimney has the defects of high price, high processing difficulty, special technical support, performance reduction at high temperature and the like.
Therefore, a chimney with high temperature resistance and corrosion resistance is provided, which can solve the problems.
Disclosure of utility model
The utility model aims to solve the technical problems that the conventional glass chimney has poor long-term high temperature resistance and short service life, and the titanium alloy chimney has high price and high processing difficulty, so that the chimney with high temperature resistance and corrosion resistance is provided, and the chimney with high temperature resistance and corrosion resistance comprises:
The novel high-pressure air-conditioning device comprises a first cylinder body, a second cylinder body, a third cylinder body and a chimney base, wherein the third cylinder body is fixedly connected with the chimney base through a flange structure, the lower end of the second cylinder body is fixedly connected with the third cylinder body, the upper end of the second cylinder body is fixedly connected with the first cylinder body, a flue is arranged on the side surface, close to the chimney base, of the third cylinder body, an ash removing opening is formed in the opposite third cylinder body of the flue, aluminum silicate refractory fiber blankets are arranged at the connecting position of the first cylinder body and the second cylinder body and the connecting position of the second cylinder body and the third cylinder body, inner liners are arranged on the inner walls of the first cylinder body, the second cylinder body and the third cylinder body, and a cylinder head is fixedly arranged at the top end of the first cylinder body.
Further, the chimney base comprises an anchor bolt, the anchor bolt penetrates through the flange structure on the third cylinder body, a nut is arranged on the anchor bolt, and the nut is used for fixing the flange structure on the third cylinder body on the anchor bolt.
Further, a plurality of lining anchoring pieces are fixedly arranged on the inner walls of the first cylinder body, the second cylinder body and the third cylinder body, and the lining anchoring pieces are arranged in a matrix.
Further, the lining is YT-2 type light heat-insulating acid-resistant castable, and the lining is formed by pouring the YT-2 type light heat-insulating acid-resistant castable on the lining anchoring piece in a fixed mode.
Further, the flue is arranged at the position of the third cylinder body, which is 1.5m away from the ground.
Further, the ash removing opening is arranged at the position of the third cylinder body, which is 2m away from the ground, the width of the ash removing opening is 1m, and the height of the ash removing opening is 0.5m.
Further, the heights of the first cylinder body, the second cylinder body and the third cylinder body are all 8-10m.
Further, the thickness of the aluminum silicate refractory fiber blanket is 15mm.
Further, the upper end of the first cylinder body is provided with a circumferential reinforcing rib.
Further, the cylinder head is made of 00Cr17Ni14Mo2 ultra-low carbon steel, the first cylinder body and the second cylinder body are made of Q235NH weather-resistant steel, and the third cylinder body is made of Q355NH weather-resistant steel.
The implementation of the utility model has the following beneficial effects:
1. According to the application, the cylinder body of the chimney adopts weathering steel and 00Cr17Ni14Mo2 ultra-low carbon steel, has good heat resistance and corrosion resistance, the lining adopts YT-2 type light heat-insulating acid-resistant castable which has the effects of low heat conductivity, good heat insulation and cylinder body protection, and the connection part of the cylinder body is provided with an aluminum silicate refractory fiber blanket and compacted and formed during hoisting, so that the connection part of each section of chimney is prevented from being secondarily repaired after being hoisted, the manufacturing cost is low, the processing difficulty is low, and the service life is long.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a top view of the upper end of the first barrel of the present utility model;
FIG. 3 is a cross-sectional view of the upper end of the first barrel of the present utility model;
FIG. 4 is a transverse cross-sectional view of the junction of the second and third barrels of the present utility model;
FIG. 5 is a longitudinal cross-sectional view of the junction of the second and third barrels of the present utility model;
FIG. 6 is a transverse cross-sectional view of the third barrel and chimney base junction of the present utility model;
FIG. 7 is a longitudinal cross-sectional view of the third barrel and chimney base junction of the present utility model;
FIG. 8 is a schematic illustration of the placement of the liner anchor of the present utility model;
fig. 9 is a schematic structural view of the liner anchor of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples
Referring to fig. 1-9 of the specification, the present embodiment provides a chimney with high temperature resistance and corrosion resistance, the chimney with high temperature resistance and corrosion resistance includes:
the novel high-strength aluminum silicate fire-resistant fiber blanket type air conditioner comprises a first cylinder body 1, a second cylinder body 2, a third cylinder body 3 and a chimney base 4, wherein the third cylinder body 3 is fixedly connected with the chimney base 4 through a flange structure, the lower end of the second cylinder body 2 is fixedly connected with the third cylinder body 3, the upper end of the second cylinder body 2 is fixedly connected with the first cylinder body 1, a flue 302 is arranged on the side surface, close to the chimney base, of the third cylinder body 3, a dust removing opening 301 is arranged on the third cylinder body opposite to the flue 302, aluminum silicate fire-resistant fiber blanket 6 is arranged at the joint of the first cylinder body 1 and the second cylinder body 2 and the joint of the second cylinder body 2 and the third cylinder body 3, inner liners 5 are arranged on the inner walls of the first cylinder body 1, the second cylinder body 2 and the third cylinder body 3, and a cylinder head 102 is further arranged at the top end of the first cylinder body 1;
The cylinder head 102 is made of 00Cr17Ni14Mo2 ultra-low carbon steel, the first cylinder body 1 and the second cylinder body 2 are made of Q235NH weather-resistant steel, and the third cylinder body 3 is made of Q355NH weather-resistant steel.
The chimney base 4 comprises an anchor bolt 401, the anchor bolt 401 penetrates through the flange structure on the third barrel 3, a nut is arranged on the anchor bolt 401, and the nut is used for fixing the flange structure on the third barrel 3 on the anchor bolt 401.
A plurality of lining anchoring pieces 7 are fixedly arranged on the inner walls of the first cylinder body 1, the second cylinder body 2 and the third cylinder body 3, and the lining anchoring pieces 7 are arranged in a matrix.
The lining 5 is YT-2 light heat-insulating acid-resistant castable, the lining 5 is formed by pouring the YT-2 light heat-insulating acid-resistant castable on the lining anchoring piece 7, and the YT-2 light heat-insulating acid-resistant castable is composed of acid-resistant and heat-resistant coarse and fine aggregates, powder, a curing agent and an adhesive. The main technical index is that the volume density is 10 OO-1200 kg/m < 3 >, the compressive strength is more than 9MPa, the flexural strength is more than 4MPa, and the normal temperature heat conductivity coefficient is less than 0.25W/(m.K). The inner wall of the barrel body is provided with an anchor for fixing the casting material to prevent collapse or form large and concentrated cracks.
The flue 302 is disposed at a distance of 1.5m from the ground to the third shaft.
The ash removal opening 301 is arranged at the position of the third cylinder body 2m away from the ground, the width of the ash removal opening 301 is 1m, and the height of the ash removal opening is 0.5m.
The heights of the first cylinder body 1, the second cylinder body 2 and the third cylinder body 3 are all 8-10m.
The thickness of the aluminum silicate refractory fiber blanket 5 is 15mm, the weight of a chimney is utilized during hoisting, the thickness of the aluminum silicate refractory fiber blanket 5 is pressed to 8mm from 15mm, and the aluminum silicate refractory fiber blanket is firmly compacted.
The upper end of the first barrel 1 is provided with a circumferential reinforcing rib 101, and the circumferential reinforcing rib 101 is used for connecting the barrel head 102 and the first barrel 1.
In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, or indirectly connected through an intermediate medium, and may be a communication between two elements or an interaction relationship between two elements, unless explicitly specified otherwise, and it will be understood by those of ordinary skill in the art that the above terms are in specific terms of the present utility model as appropriate.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.