CN207635367U - Power plant chimney with anti-corrosion of metal structure - Google Patents
Power plant chimney with anti-corrosion of metal structure Download PDFInfo
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- CN207635367U CN207635367U CN201721425667.1U CN201721425667U CN207635367U CN 207635367 U CN207635367 U CN 207635367U CN 201721425667 U CN201721425667 U CN 201721425667U CN 207635367 U CN207635367 U CN 207635367U
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- absorbing path
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Abstract
The utility model discloses a kind of power plant chimneys with anti-corrosion of metal structure, including chimney body, the chimney body includes inner wall of stack, the inner wall of stack is equipped with non-corrosive metal (NCM) layer, the section of the non-corrosive metal (NCM) layer is the arc with opening, absorbing path is equipped between the head end and tail end of the arc, left side, right side and the rear side of the absorbing path are all anti-corrosion metal plate and front side is anti-corrosion wire netting, the surface of the non-corrosive metal (NCM) layer is equipped with top-down spiral helicine diversion trench, and absorber is equipped in the absorbing path.The utility model provides a kind of power plant chimney with anti-corrosion of metal structure, and not only service life is longer, and use cost is relatively low, and replaces and be easier to, and shape is relatively beautiful.
Description
Technical field
The utility model is specifically related to a kind of power plant chimney with anti-corrosion of metal structure.
Background technology
Chimney be mainly used for putting a chimney on the stove and make the fire draw cigarette, drain flue gas and improve the device of burning condition.In thermal power plant, firepower
It will produce the exhaust gas and dust (i.e. flue gas) of a large amount of sulfur-bearings in the coal of power generation burning；It will produce seriously since flue gas is discharged into after air
Pollution forms haze and acid rain, therefore chimney used in thermal power plant must all carry out desulfurization process.
Currently, relatively conventional wet desulfurizing process can largely remove the sulfur dioxide removal in flue gas, it can be difficult to
Remove the sulfur trioxide (wet desulfurizing process can only remove in flue gas 20%~30% or so sulfur trioxide) in flue gas, three oxygen
It is the main component for acid dew-point temperature being had a major impact and being formed corrosivity acid solution to change sulphur；Due to through wet desulfurizing process desulfurization
Afterwards, the humidity of flue gas increases, temperature reduces, therefore flue gas is easy to condense in the inner wall of chimney.Remaining sulfur trioxide in flue gas
After dissolving, the extremely strong dilute sulfuric acid of corrosivity can be formed and flowed down along chimney wall, and then the interior wall construction of heavy corrosion and infiltration chimney,
The liner for not only resulting in chimney rots and peels off, and the cylinder of chimney can also be caused to rupture.
With progress of the epoch, people carry out anti-corrosion, such as foam glass brick technology, glass using many technologies to chimney
Scale and improved technique, acid resistant adhesive mortar and alloy lining technology etc..But above-mentioned technology is respectively present many drawbacks, anti-corrosion
Time limit is shorter, just needs to carry out integral replacing or repair after generally limiting using relatively short-term, and not only operating process is more complicated, and
And use cost is increased, although alloy lining technology can prevent chimney from being corroded for a long time, manufacturing cost is higher.
Utility model content
The utility model mainly solving the technical problems that：A kind of power plant chimney with anti-corrosion of metal structure is provided,
Not only service life is longer, and use cost is relatively low, and replaces and be easier to, and shape is relatively beautiful.
In order to solve the above technical problems, the technical solution that the utility model uses is：It provides a kind of anti-with metal
The power plant chimney of rotten structure, including chimney body, the chimney body include inner wall of stack, will be close to the axis of chimney body
Direction be defined as front, the inner wall of stack is equipped with non-corrosive metal (NCM) layer, and the section of the non-corrosive metal (NCM) layer is with opening
Arc is equipped with absorbing path between the head end and tail end of the arc, solid between the absorbing path and the non-corrosive metal (NCM) layer
Fixed connection, the absorbing path are arranged in vertical direction and extend to chimney bottom from chimney top, and the absorbing path is cut
Face is rectangle, and left side, right side and the rear side of the absorbing path are all anti-corrosion metal plate and front side is anti-corrosion wire netting, described
The surface of non-corrosive metal (NCM) layer is equipped with top-down spiral helicine diversion trench, the head end of the diversion trench and the top of chimney body
Connection and the connection of the bottom of tail end and chimney body, have multiple contact sites, institute between the diversion trench and the absorbing path
It states diversion trench to be connected to absorbing path by contact site, absorber, the absorber and the suction is equipped in the absorbing path
The shape for receiving channel is adapted.
It further says, the absorbing path and the junction of the non-corrosive metal (NCM) layer are equipped with sealing joint strip, the sealing
Adhesive tape covers and is adhered to the junction of absorbing path and non-corrosive metal (NCM) layer, and the sealing joint strip is silicone adhesive tape.
It further says, the mesh of the anti-corrosion wire netting is round hole, square hole or diamond hole.
It further says, the mesh of the anti-corrosion wire netting is round hole, and the aperture of the round hole is 0.5-1cm.
It further says, insulating layer (7) is equipped between the inner wall of stack and the non-corrosive metal (NCM) layer, the insulating layer
Thickness is 5-10cm.
It further says, the non-corrosive metal (NCM) layer is enamelled pressed steel layer；The anti-corrosion metal plate is enamelled pressed steel；It is described anti-
Rotten metal mesh is enamel steel mesh.
It further says, the absorber is the sponge or cotton of strip.
It further says, the rectangular cross-section of the absorbing path, a length of 10-15cm and width of the absorbing path are 4-
8cm。
It further says, the diversion trench is V-groove, and the groove width of the V-groove is 3-5cm and groove depth is 1-3cm.
The utility model has the beneficial effects that：
One, the inner wall of stack of the utility model is equipped with enamelled pressed steel and absorbing path, the enamelled pressed steel surface of inner wall of stack
It equipped with top-down spiral helicine diversion trench, and is connected to by multiple contact sites between diversion trench and absorbing path, in flue gas
After remaining sulfur trioxide dissolving, forms the extremely strong dilute sulfuric acid of corrosivity and flow down along inner wall of stack, imported and absorbed by diversion trench
Channel, the interior absorber for being equipped with strip of absorbing path, absorber is sponge or cotton, and absorber absorbs dilute sulfuric acid, only needs basis
The situation of absorber carries out replacement absorber in due course, reduces maintenance cost；Diversion trench is set as helical form and from chimney body
Top extend to bottom, can be segmented and water conservancy diversion absorption is carried out to dilute sulfuric acid, reasonable design, anti-corrosion effect is good；
Two, the chimney body inner wall of the utility model is provided with enamelled pressed steel, and not only service life is long for enamelled pressed steel, but also
Corrosion resistance is strong；Enamelled pressed steel has stronger resisting property to the corrosive solutions such as acid, alkali, salt and gas and anti-friction is strong；
Because enamel is the inorganic composite materials of 6~7 grades of Mohs, enamelled pressed steel can resist high friction and scratch, be suitble to stream
Use of the fast high, particle concentration compared with overall situation chimney；
Three, the enamelled pressed steel that the utility model uses has high temperature resistant and non-flammability due to enamel, can not only be
400 DEG C of high temperature is resisted for a long time, and can be cold without damaging in 30 seconds cohesions；Enamelled pressed steel is not only easier to clean
And maintenance, and bright and clean enamel surfaces have self-cleaning function, and surface not easy damaged, construction efficiency is higher, and shape is more beautiful
It sees；
It is needed after being limited in the prior art using relatively short-term compared with carrying out integral replacing or the chimney of repair, this practicality is new
The service life of type is longer, and tool research obtains, the utility model can be used persistently 20 years or more.
Description of the drawings
Fig. 1 is the sectional view one (along the sectional view of chimney body length direction) of the utility model；
Fig. 2 is the sectional view two (along the sectional view of chimney body width direction) of the utility model；
The reference numeral of each section is as follows in figure：
Chimney body 1, inner wall of stack 2, non-corrosive metal (NCM) layer 3, absorbing path 4, anti-corrosion wire netting 41, diversion trench 5, absorber
6 and insulating layer 7.
Specific implementation mode
The following examples illustrate the utility model, but is not intended to limit the scope of the present invention.Without departing substantially from this
In the case of utility model spirit and essence, to modifications or substitutions made by the utility model method, step or condition, belong to
The scope of protection of the utility model.
Embodiment：A kind of power plant chimney with anti-corrosion of metal structure, as Fig. 1-Fig. 2 shows, including chimney body 1, institute
It includes inner wall of stack 2 to state chimney body, and the direction that will be close to the axis of chimney body is defined as front, and the inner wall of stack is equipped with
The section of non-corrosive metal (NCM) layer 3, the non-corrosive metal (NCM) layer is the arc with opening, is equipped between the head end and tail end of the arc
Absorbing path 4 is fixedly connected between the absorbing path and the non-corrosive metal (NCM) layer, and the absorbing path is arranged in vertical direction
And chimney bottom is extended to from chimney top, the section of the absorbing path is rectangle, left side, the right side of the absorbing path
And rear side is all anti-corrosion metal plate and front side is anti-corrosion wire netting 41, the surface of the non-corrosive metal (NCM) layer is equipped with top-down spiral shell
The diversion trench 5 of shape is revolved, the head end of the diversion trench and the top of chimney body connect and the bottom of tail end and chimney body connects,
There are multiple contact sites, the diversion trench to be connected by contact site and absorbing path between the diversion trench and the absorbing path
It is logical, absorber 6 is equipped in the absorbing path, the absorber and the shape of the absorbing path are adapted.
The absorbing path and the junction of the non-corrosive metal (NCM) layer are equipped with sealing joint strip, and the sealing joint strip is covered and glued
It is connected to the junction of absorbing path and non-corrosive metal (NCM) layer, the sealing joint strip is silicone adhesive tape.
The mesh of the anti-corrosion wire netting is round hole, square hole or diamond hole.
The mesh of the anti-corrosion wire netting is round hole, and the aperture of the round hole is 0.5-1cm.
Insulating layer 7 is equipped between the inner wall of stack and the non-corrosive metal (NCM) layer, the thickness of the insulating layer is 5-10cm.
The insulating layer is inorganic heat insulation mortar layer.
The non-corrosive metal (NCM) layer is enamelled pressed steel layer；The anti-corrosion metal plate is enamelled pressed steel；The anti-corrosion wire netting is
Enamel steel mesh.
The absorber is the sponge or cotton of strip.
The rectangular cross-section of the absorbing path, a length of 10-15cm and width of the absorbing path are 4-8cm.
The diversion trench is V-groove, and the groove width of the V-groove is 3-5cm and groove depth is 1-3cm.
The operation principle or workflow of the utility model are as follows：
The inner wall of stack of the utility model is equipped with enamelled pressed steel and absorbing path, and the enamelled pressed steel surface of inner wall of stack is equipped with
Top-down spiral helicine diversion trench, and be connected to by multiple contact sites between diversion trench and absorbing path, it is remained in flue gas
Sulfur trioxide dissolving after, form the extremely strong dilute sulfuric acid of corrosivity and flow down along inner wall of stack, absorbing path is imported by diversion trench,
The absorber of strip is equipped in absorbing path, absorber is sponge or cotton, and absorber absorbs dilute sulfuric acid, only need to be according to absorber
Situation carry out replacement absorber in due course, reduce maintenance cost；Diversion trench is set as helical form and the top from chimney body
Bottom is extended to, can be segmented to dilute sulfuric acid progress water conservancy diversion absorption, reasonable design, anti-corrosion effect is good.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those skilled in the art, other various forms of variations or change can also be made on the basis of the above description
It is dynamic.Here it is not necessarily to exhaustion.And the guarantor that obvious changes or variations extended from this are created still in the utility model
It protects among range.
Claims (9)
1. a kind of power plant chimney with anti-corrosion of metal structure, including chimney body (1), it is characterised in that：The chimney sheet
Body includes inner wall of stack (2), and the direction that will be close to the axis of chimney body is defined as front, and the inner wall of stack is equipped with anti-corrosion gold
Belong to layer (3), the section of the non-corrosive metal (NCM) layer is the arc with opening, is equipped with and absorbs between the head end and tail end of the arc
Channel (4) is fixedly connected between the absorbing path and the non-corrosive metal (NCM) layer, the absorbing path in vertical direction be arranged and
Extend to chimney bottom from chimney top, the section of the absorbing path is rectangle, the left side of the absorbing path, right side and
Rear side is all anti-corrosion metal plate and front side is anti-corrosion wire netting (41), and the surface of the non-corrosive metal (NCM) layer is equipped with top-down spiral shell
The diversion trench (5) of shape is revolved, the head end of the diversion trench and the top of chimney body connect and the bottom of tail end and chimney body connects
It connects, there are multiple contact sites, the diversion trench to pass through contact site and absorbing path between the diversion trench and the absorbing path
Connection, the absorbing path is interior to be equipped with absorber (6), and the absorber and the shape of the absorbing path are adapted.
2. the power plant chimney according to claim 1 with anti-corrosion of metal structure, it is characterised in that：The absorbing path
It is equipped with sealing joint strip with the junction of the non-corrosive metal (NCM) layer, the sealing joint strip covers and is adhered to absorbing path and anti-corrosion gold
Belong to the junction of layer, the sealing joint strip is silicone adhesive tape.
3. the power plant chimney according to claim 1 with anti-corrosion of metal structure, it is characterised in that：The non-corrosive metal (NCM)
The mesh of net is round hole, square hole or diamond hole.
4. the power plant chimney according to claim 1 with anti-corrosion of metal structure, it is characterised in that：The non-corrosive metal (NCM)
The mesh of net is round hole, and the aperture of the round hole is 0.5-1cm.
5. the power plant chimney according to claim 1 with anti-corrosion of metal structure, it is characterised in that：The inner wall of stack
Insulating layer (7) is equipped between the non-corrosive metal (NCM) layer, the thickness of the insulating layer is 5-10cm.
6. the power plant chimney according to claim 1 with anti-corrosion of metal structure, it is characterised in that：The non-corrosive metal (NCM)
Layer is enamelled pressed steel layer；The anti-corrosion metal plate is enamelled pressed steel；The anti-corrosion wire netting is enamel steel mesh.
7. the power plant chimney according to claim 1 with anti-corrosion of metal structure, it is characterised in that：The absorber is
The sponge or cotton of strip.
8. the power plant chimney according to claim 1 with anti-corrosion of metal structure, it is characterised in that：The absorbing path
Rectangular cross-section, a length of 10-15cm and width of the absorbing path are 4-8cm.
9. the power plant chimney according to claim 1 with anti-corrosion of metal structure, it is characterised in that：The diversion trench
Groove width for V-groove, the V-groove is 3-5cm and groove depth is 1-3cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721425667.1U CN207635367U (en) | 2017-10-31 | 2017-10-31 | Power plant chimney with anti-corrosion of metal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721425667.1U CN207635367U (en) | 2017-10-31 | 2017-10-31 | Power plant chimney with anti-corrosion of metal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207635367U true CN207635367U (en) | 2018-07-20 |
Family
ID=62859176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721425667.1U Expired - Fee Related CN207635367U (en) | 2017-10-31 | 2017-10-31 | Power plant chimney with anti-corrosion of metal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207635367U (en) |
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2017
- 2017-10-31 CN CN201721425667.1U patent/CN207635367U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180720 Termination date: 20181031 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |