CN205383624U - Gas gas heater system - Google Patents
Gas gas heater system Download PDFInfo
- Publication number
- CN205383624U CN205383624U CN201620212365.5U CN201620212365U CN205383624U CN 205383624 U CN205383624 U CN 205383624U CN 201620212365 U CN201620212365 U CN 201620212365U CN 205383624 U CN205383624 U CN 205383624U
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- CN
- China
- Prior art keywords
- soot blower
- heat exchanger
- gas
- cleansing medium
- flue gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004071 soot Substances 0.000 claims abstract description 51
- 238000002347 injection Methods 0.000 claims abstract description 20
- 239000007924 injection Substances 0.000 claims abstract description 20
- 238000005406 washing Methods 0.000 claims abstract description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 40
- 239000003546 flue gas Substances 0.000 claims description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000000779 smoke Substances 0.000 claims description 19
- 238000004140 cleaning Methods 0.000 claims description 14
- 238000010926 purge Methods 0.000 claims description 12
- 238000011010 flushing procedure Methods 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 238000006477 desulfuration reaction Methods 0.000 abstract description 4
- 230000023556 desulfurization Effects 0.000 abstract description 4
- 230000008021 deposition Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a gas gas heater field, concretely relates to gas gas heater system, including gas gas heater and set up the first soot blower and the second soot blower of cold junction in the gas gas heater hot junction, first soot blower and second soot blower are retractable soot blower, and first soot blower includes first body, sets up and enters the mouth in an injection apparatus of this first body one end and the first cleansing medium of the other end, the second soot blower includes the second body, sets up in the 2nd injection apparatus of this second body one end and the second cleansing medium entry of the other end. The utility model provides a gas gas heater system can rinse the different parts in heat exchanger piece surface comprehensively, not only can effectively drive deposition and scale deposit thing on the heat transfer component, and can not damage the heat transfer component, reduced heat transfer element fault rate with off -line washing frequency, make gas gas heater's continuous operation lengthen greatly in the cycle, improved the security of desulfurization system equipment and the economic nature that desulfurization system moved.
Description
Technical field
This utility model relates to flue gas heat-exchange unit field, in particular it relates to a kind of smoke heat exchanger system.
Background technology
Flue gas heat-exchange unit (GGH), is one of main device in flue gas desulphurization system.Its effect is to utilize former flue gas to be heated by the neat stress after desulfurization, makes exhaust gas temperature reach on dew point, alleviates the corrosion to clean flue and chimney, improves the diffusance of pollutant；It is lowered into the flue-gas temperature on absorption tower simultaneously, reduces in tower antiseptical process specifications.
But, along with the increase of the time of use, can easily there is blocking in GGH heat exchange element.Its reason essentially consists in: (1) is good due to coal-fired grindability, the dust granules produced is superfine, electric cleaner almost cannot be removed for these superfine granules, hence into the former flue gas of desulfurization, further enter GGH and adhesion occurs, and also do not measure when the granule traditional test methods that particle diameter is less than 2.5 microns tests flue dust；(2) find during overhaul check that the corrugated plating of demister causes the ripple of corrugated plating inconspicuous due to reasons such as fouling adhesions, tend to a plane；It addition, demister dirt is analyzed it is shown that both comparison of ingredients are consistent with GGH dirt thing, also illustrating that demister removes fog effect undesirable is one of reason of causing GGH to block；(3) partial product black dirt is bonded in Heat exchanger sheet surface, serves the effect of nucleus in operation afterwards, cold end heating surface oneself begin with partial product black dirt and be difficult to normally clean out；High pressure water washing, in former fume side, more easily causes the viscous ash of GGH, and causes the hardening of attachment on heat exchange element, causes booster fan differential pressure close to rated pressure.Thus, desulphurization system resistance rises, and flue and chimney causes corrosion and " gypsum rain " and " plume " phenomenon occurs, has had a strong impact on the safety that whole desulphurization system is run and the maintenance and the operation and maintenance cost that increase desulphurization system.
In current GGH cleaning method, GGH manufacturing firm generally requires strictly to control the use frequency of water under high pressure and washing time, and washing time is generally 8 hours.A manufacturer deems that: the impurity such as Gypsum Fibrosum that former flue gas carries, dust and water under high pressure hybrid reaction, form similar " cement " hard foulant, it is difficult to remove.In addition, some power plant carries out the tackling of key scientific and technical problems that high-temperature steam is main purging, the powerful impact kinetic energy utilizing high-temperature steam removes the foulant of GGH, although alleviating GGH fouling and clogging phenomenon, but GGH heat exchange element can often be occurred by the situation of high-temperature steam blow loss, the life-span of equipment shortens dramatically, and cost is too high and power plant cannot accept.The high universal phenomenon seriously remaining power plant with fouling and clogging phenomenon of current GGH pressure reduction.
For improving GGH system long period safe and stable operation, this area is needed exploitation one badly and be can effectively solve the problem that structure blocking in GGH system, chimney corrosion and eliminate the flue gas heat-exchange unit of Gypsum Fibrosum " plume ".
Utility model content
The purpose of this utility model is to overcome the defect existed in existing GGH running, it is provided that a kind of smoke heat exchanger system.
To achieve these goals, this utility model provides a kind of smoke heat exchanger system, wherein, this smoke heat exchanger system includes flue gas heat-exchange unit and is arranged on first soot blower in hot junction of flue gas heat-exchange unit and is arranged on second soot blower of cold end of flue gas heat-exchange unit, wherein, described first soot blower and the second soot blower are retractable soot blower, and described first soot blower includes the first body, be arranged at first injection apparatus of one end of this first body and be arranged at the first cleansing medium entrance of the other end of this first body；Described second soot blower includes the second body, be arranged at second injection apparatus of one end of this second body and be arranged at the second cleansing medium entrance of the other end of this second body.
Preferably, described first cleansing medium entrance and described second cleansing medium entrance respectively with the connecting of on-line cleaning device.
Preferably, described on-line cleaning device is at least one in online high-pressure water flushing device, online low pressure water washing device, online high-temperature steam blow device and line compression air purge set.
Preferably, described first cleansing medium entrance connects with online high-pressure water flushing device, and described second cleansing medium entrance connects with line compression air purge set.
Preferably, described first body includes pipe and the first outer tube in first, and in described first, pipe and described first outer tube are connected by sport car, to control the flexible of described first soot blower；Described second body includes pipe and the second outer tube in second, and in described second, pipe and described second outer tube are connected by sport car, to control the flexible of described second soot blower.
Preferably, described flue gas heat-exchange unit includes rotor and central shaft, it is further preferred that arrange multiple heat exchange element storehouse on described rotor.
Use the smoke heat exchanger system that this utility model provides, can realize different piece on rotor Heat exchanger sheet surface is cleaned comprehensively, it is not only able to dust stratification and the foulant etc. of effectively removing on heat exchange element, and it is damaged from heat exchange element, thus reducing the fault rate of heat exchange element and the frequency of off-line cleaning, effectively the pressure reduction of GGH is controlled at below 1.2MPa, the continuous cycle of operation making flue gas heat-exchange unit is greatly prolonged, and improves the safety of desulphurization system equipment and the economy of desulphurization system operation.
Other feature and advantage of the present utility model will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to offer and is further appreciated by of the present utility model, and constitutes a part for description, is used for explaining this utility model, but is not intended that restriction of the present utility model together with detailed description below.In the accompanying drawings:
Fig. 1 is a kind of concrete smoke heat exchanger system that utility model provides.
Description of reference numerals
1 hot junction soot blower 2 flue gas heat-exchange unit
3 cold end soot blowers
Pipe 12 first injection apparatus in 11 first
13 first outer tube 14 first cleansing medium entrances
21 rotor 22 central shafts
Pipe 32 second injection apparatus in 31 second
33 second outer tube 34 second cleansing medium entrances
Detailed description of the invention
Hereinafter the detailed description of the invention of utility model is described in detail.It should be appreciated that detailed description of the invention described herein is merely to illustrate and explains this utility model, it is not limited to this utility model.
As shown in Figure 1, this utility model provides a kind of smoke heat exchanger system, this smoke heat exchanger system includes flue gas heat-exchange unit 2 and is arranged on first soot blower 1 in hot junction of flue gas heat-exchange unit and is arranged on second soot blower 3 of cold end of flue gas heat-exchange unit, wherein, described first soot blower 1 and the second soot blower 3 are retractable soot blower, and described first soot blower 1 includes the first body, be arranged at first injection apparatus 12 of one end of this first body and be arranged at the first cleansing medium entrance 14 of the other end of this first body；Described second soot blower 3 includes the second body, be arranged at second injection apparatus 32 of one end of this second body and be arranged at the second cleansing medium entrance 34 of the other end of this second body.
In utility model, term " hot junction " refers to one end that temperature is of a relatively high in flue gas heat-exchange unit, and term " cold end " refers to one end that temperature is relatively low in flue gas heat-exchange unit.
According to this utility model, described first body includes pipe 11 and the first outer tube 13 in first, in first, pipe 11 and the first outer tube 13 socket-connect, and connected by sport car, described second body includes pipe 31 and the second outer tube 33 in second, and in second, pipe 31 and the second outer tube 33 socket-connect, and are connected by sport car, thus controlling the flexible of described soot blower, in order to the heat exchange element of GGH is cleaned more fully.
According to this utility model, described first cleansing medium entrance 14 and described second cleansing medium entrance 34 respectively with the connecting of on-line cleaning device.Wherein, described on-line cleaning device can be the on-line cleaning device that this area is conventional, for instance, at least one in online high-pressure water flushing device, online low pressure water washing device, online high-temperature steam blow device and line compression air purge set.
According to this utility model, preferably, the described pipeline of the first cleansing medium entrance 14 and the nozzle of online high-pressure water flushing device and pipeline UNICOM, so that the cleansing medium of on-line cleaning device is entered in described first soot blower 1 by pipeline and nozzle, and by the injection apparatus 12 being arranged on the first soot blower 1, the heat exchange element in GGH hot junction is carried out.
Wherein, on the surface that on the online high-pressure water flushing device that described first soot blower 1 connects, each nozzle preferably makes the water that pressure is not less than 9.8MPa be sprayed on heat exchange element sheet, remove the deposit that the normally compressed air of soot blower purges and off-line flusher can not wash.
Preferably, according to this utility model, the pipeline of described second cleansing medium entrance 34 preferably with the pipeline communication of compressed air blowing cleaner, especially when in the irrational situation of position of cold end soot blower, it is to avoid use online water under high pressure water flushing device to be carried out.When described on-line cleaning device is compressed air blowing cleaner, described compressed-air actuated pressure is not less than 0.98MPa.It is further preferred that the condition that described compression air purges includes: compressed-air actuated pressure is 500-900kPa, and compressed air require is 10-40m3/min。
According to this utility model, described first injection apparatus 12 and the second injection apparatus 32 can be the injection apparatus that this area is conventional, and this utility model is to this not special restriction.Wherein, described first injection apparatus 12 and the second injection apparatus 32 could be arranged to multiple so as to fully flue gas heat-exchange unit 2 is carried out.
According to this utility model, each soot blower can individually control, namely the online high pressure water washing in hot junction and the compression air to cold end purge and can carry out simultaneously, it is also possible to individually carries out.
In this utility model, the heat exchanger surface of flue gas heat-exchange unit fully can be cleaned alternately up and down by being respectively provided with soot blower in the hot junction of flue gas heat-exchange unit and cold end, and the pressure reduction of GGH is significantly reduced by compression air and water under high pressure combination type on-line cleaning mode, it is reduced to below 1.2KPa, thus the stable operation for GGH provides effective guarantee.
According to this utility model, purging situation according to reality, described hot junction and cold end can be respectively arranged with multiple soot blower.
According to this utility model, described flue gas heat-exchange unit 2 can be the flue gas heat-exchange unit that this area is conventional, for instance, it includes rotor 21, described rotor 21 arranges multiple heat exchange element storehouse, to realize the heat exchange between former flue gas and neat stress.It also includes central shaft 22, and described rotor 21 pivots about with central shaft 22, thus carrying out heat exchange between former flue gas and neat stress, described central shaft 22 is provided with motor, to drive the rotation of rotor 21.
It addition, described flue gas heat-exchange unit 2 still further comprises seal area, former flue and clean flue, described former flue and described clean flue are separated by described seal area, such that it is able to avoid rotor to cause the mixing of former flue gas and neat stress in the process rotated.
Illustrate the working method of described smoke heat exchanger system below in conjunction with Fig. 1, this smoke heat exchanger system includes:
Flue gas heat-exchange unit 2, described flue gas heat-exchange unit 2 includes rotor 21 and central shaft 22；Described rotor 21 arranges multiple heat exchange element storehouse；
Being arranged on first soot blower 1 in the hot junction of flue gas heat-exchange unit, described first soot blower 1 includes the first body, be arranged at first injection apparatus 12 of one end of this first body and be arranged at the first cleansing medium entrance 14 of the other end of this first body；Described first body includes pipe 11 and the first outer tube 13 in first, and in described first, pipe 11 and described first outer tube 13 are connected by sport car, to control the flexible of described first soot blower (1)；Described first cleansing medium entrance 14 connects with online high-pressure water flushing device；And
It is arranged on the second soot blower 3 of the cold end of flue gas heat-exchange unit；Described second soot blower 3 includes the second body, be arranged at second injection apparatus 32 of one end of this second body and be arranged at the second cleansing medium entrance 34 of the other end of this second body；Described second body includes pipe 31 and the second outer tube 33 in second, and in described second, pipe 31 and described second outer tube 33 are connected by sport car, to control the flexible of described second soot blower (1)；Described second cleansing medium entrance 34 connects with line compression air purge set.
Described flue gas heat-exchange unit 2 carries out coupling and couples with desulphurization system, runs continuously.
On-line cleaning method of the present utility model is adopted to carry out the on-line cleaning of flue gas heat-exchange unit: the heat exchange element in hot junction is carried out online high pressure water washing by its injection apparatus 12 by the first soot blower 1 being arranged at hot junction, and on online high-pressure water flushing device, each nozzle makes the water that pressure is not less than 9.8MPa be sprayed on the surface of heat exchange element sheet；The heat exchange element of cold end is compressed air purging by its injection apparatus 32 by the second soot blower 3 being arranged at cold end, and described compressed-air actuated pressure is not less than 0.98MPa.
Flue gas heat-exchange unit runs 18 months continuously, does not find that heat exchange element damages phenomenon, and flue gas heat-exchange unit fouling and clogging phenomenon is slight, and enamel true qualities can be seen in heat exchange element surface.
Preferred implementation of the present utility model is described in detail above in association with accompanying drawing; but; this utility model is not limited to the detail in above-mentioned embodiment; in technology concept of the present utility model; the technical solution of the utility model can being carried out multiple simple variant, these simple variant belong to protection domain of the present utility model.
It is further to note that each the concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, it is possible to be combined by any suitable mode.In order to avoid unnecessary repetition, various possible compound modes are no longer illustrated by this utility model separately.
Additionally, can also carry out combination in any between various different embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (7)
1. a smoke heat exchanger system, it is characterized in that, this smoke heat exchanger system includes flue gas heat-exchange unit (2) and is arranged on first soot blower (1) in hot junction of flue gas heat-exchange unit and is arranged on second soot blower (3) of cold end of flue gas heat-exchange unit, wherein, described first soot blower (1) and the second soot blower (3) are retractable soot blower, described first soot blower (1) includes the first body, first cleansing medium entrance (14) of the first injection apparatus (12) being arranged at one end of this first body and the other end being arranged at this first body；Described second soot blower (3) includes the second body, be arranged at second injection apparatus (32) of one end of this second body and be arranged at the second cleansing medium entrance (34) of the other end of this second body.
2. smoke heat exchanger system according to claim 1, it is characterised in that described first cleansing medium entrance (14) and described second cleansing medium entrance (34) respectively with the connecting of on-line cleaning device.
3. smoke heat exchanger system according to claim 2, it is characterised in that described on-line cleaning device is at least one in online high-pressure water flushing device, online low pressure water washing device, online high-temperature steam blow device and line compression air purge set.
4. smoke heat exchanger system according to claim 3, it is characterized in that, described first cleansing medium entrance (14) connects with online high-pressure water flushing device, and described second cleansing medium entrance (34) connects with line compression air purge set.
5. smoke heat exchanger system according to claim 1, it is characterized in that, described first body includes pipe (11) and the first outer tube (13) in first, in described first, pipe (11) and described first outer tube (13) are connected by sport car, to control the flexible of described first soot blower (1)；Described second body includes pipe (31) and the second outer tube (33) in second, in described second, pipe (31) and described second outer tube (33) are connected by sport car, to control the flexible of described second soot blower (3).
6. the smoke heat exchanger system according to any one in claim 1-5, it is characterised in that described flue gas heat-exchange unit (2) includes rotor (21) and central shaft (22).
7. smoke heat exchanger system according to claim 6, it is characterised in that multiple heat exchange element storehouse is set on described rotor (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620212365.5U CN205383624U (en) | 2016-03-18 | 2016-03-18 | Gas gas heater system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620212365.5U CN205383624U (en) | 2016-03-18 | 2016-03-18 | Gas gas heater system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205383624U true CN205383624U (en) | 2016-07-13 |
Family
ID=56351655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620212365.5U Active CN205383624U (en) | 2016-03-18 | 2016-03-18 | Gas gas heater system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205383624U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426260A (en) * | 2018-05-15 | 2018-08-21 | 中国计量大学 | The heating surface soot blower system and its ash-blowing method that compressed air is coupled with high pressure flue gas |
| CN109631058A (en) * | 2018-12-16 | 2019-04-16 | 浙江浙能温州发电有限公司 | A kind of soot blower system and its application method that steam/compressed air automatically switches |
| CN109683634A (en) * | 2018-12-11 | 2019-04-26 | 广东电网有限责任公司 | A kind of coal-burning power plant SO2Exceeded control system and its storage medium |
| CN112129160A (en) * | 2019-06-24 | 2020-12-25 | 上海梅山钢铁股份有限公司 | Online circulation cleaning device of heat exchanger |
| CN112964089A (en) * | 2021-02-24 | 2021-06-15 | 自然资源部天津海水淡化与综合利用研究所 | Diesel engine flue gas waste heat recovery system of area self-cleaning |
-
2016
- 2016-03-18 CN CN201620212365.5U patent/CN205383624U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426260A (en) * | 2018-05-15 | 2018-08-21 | 中国计量大学 | The heating surface soot blower system and its ash-blowing method that compressed air is coupled with high pressure flue gas |
| CN109683634A (en) * | 2018-12-11 | 2019-04-26 | 广东电网有限责任公司 | A kind of coal-burning power plant SO2Exceeded control system and its storage medium |
| CN109683634B (en) * | 2018-12-11 | 2022-02-15 | 广东电网有限责任公司 | SO of coal-fired power plant2Superstandard control system and storage medium thereof |
| CN109631058A (en) * | 2018-12-16 | 2019-04-16 | 浙江浙能温州发电有限公司 | A kind of soot blower system and its application method that steam/compressed air automatically switches |
| CN112129160A (en) * | 2019-06-24 | 2020-12-25 | 上海梅山钢铁股份有限公司 | Online circulation cleaning device of heat exchanger |
| CN112964089A (en) * | 2021-02-24 | 2021-06-15 | 自然资源部天津海水淡化与综合利用研究所 | Diesel engine flue gas waste heat recovery system of area self-cleaning |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 100011 Beijing Dongcheng District, West Binhe Road, No. 22 Patentee after: China Shenhua Energy Co.,Ltd. Patentee after: National Energy Group Guohua Power Co.,Ltd. Patentee after: Guoneng Hebei Dingzhou Power Generation Co.,Ltd. Address before: 100011 Shenhua building, 22 West Binhe Road, Dongcheng District, Beijing Patentee before: China Shenhua Energy Co.,Ltd. Patentee before: BEIJING GUOHUA POWER Co.,Ltd. Patentee before: HEBEI GUOHUA DINGZHOU POWER GENERATION Co.,Ltd. |
|
| CP03 | Change of name, title or address |