CN205535888U - Low -level (stack -gas) economizer overhauls device on line - Google Patents
Low -level (stack -gas) economizer overhauls device on line Download PDFInfo
- Publication number
- CN205535888U CN205535888U CN201620207515.3U CN201620207515U CN205535888U CN 205535888 U CN205535888 U CN 205535888U CN 201620207515 U CN201620207515 U CN 201620207515U CN 205535888 U CN205535888 U CN 205535888U
- Authority
- CN
- China
- Prior art keywords
- gas
- stack
- level
- low
- economizer
- 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.)
- Active
Links
Landscapes
- Incineration Of Waste (AREA)
Abstract
The utility model provides a low -level (stack -gas) economizer overhauls device on line, include: the low -level (stack -gas) economizer is including the low -level (stack -gas) economizer body, set up in the imported flue of low -level (stack -gas) economizer body one end and set up in the exhaust pass of the low -level (stack -gas) economizer body other end, do not have to leak the flue stop valve, include the first nothing leakage flue stop valve is connected with the import flue and do not have leakage flue stop valve with second that exhaust pass is connected, the exhaust hole is including setting up the first exhaust hole on the import flue and setting up the second exhaust hole on exhaust pass, the manhole door is including setting up the first manhole door on the import flue and setting up the second manhole door on exhaust pass. The utility model discloses beneficial effect: can in time examine and repair under not shut down of the unit circumstances when making the low -level (stack -gas) economizer take place leakage or other troubles, increase low -level (stack -gas) economizer operating duration, reduce the unit coal consumption, pollution abatement thing emission improves unit safety nature simultaneously, has solved the low -level (stack -gas) economizer and has examined and repaired the contradiction of moving with unit safety.
Description
Technical field
This utility model relates to energy saving for power plants and field of Environment Protection, particularly relates to a kind of low-level (stack-gas) economizer and examines online
Repair device.
Background technology
Low-level (stack-gas) economizer (also referred to as smoke gas afterheat heat exchanger) is mounted in the heat transmission equipment of boiler back end ductwork,
It is to reduce fired power generating unit exhaust gas temperature, improves the efficiency of dust collection of electric precipitation, improve generatine set heat efficiency, fall
Low unit generation coal consumption and one of thermal power plant's auxiliary equipment of rising.Increasing thermal power plant is mounted with low temperature
Economizer.
Due to the reason such as corrosion, wear and equipment deficiency, low-level (stack-gas) economizer usually can after running a period of time
Leak, bring threat greatly to the safe operation of fired power generating unit.Generally, low-level (stack-gas) economizer is let out
After leakage, being isolated by water side system, low-level (stack-gas) economizer is stopped transport, and unit is properly functioning, and unit is carried out by the time
When overhaul or light maintenance compressor emergency shutdown, then carry out the upkeep operation of low-level (stack-gas) economizer.So, from low-level (stack-gas) economizer
Break down compressor emergency shutdown during this period of time, the exhaust gas temperature of fired power generating unit can higher than low-level (stack-gas) economizer run time
Exhaust gas temperature, unit coal consumption can increase, especially for coordinate low temp. electric dedusting improve efficiency of dust collection low
If temperature economizer is stopped transport because of fault, dust collection efficiency can be caused to decline, unit fume emission cannot meet works as
Front discharge standard.
After low-level (stack-gas) economizer breaks down, how can carry out in time overhauling and resuming operation as early as possible, to have become as
Fired power generating unit urgent problem.
Utility model content
The utility model proposes a kind of low-level (stack-gas) economizer on-bne repair device, solve in prior art above-mentioned
Problem.
The technical solution of the utility model is achieved in that
A kind of low-level (stack-gas) economizer on-bne repair device, including:
Low-level (stack-gas) economizer, including low-level (stack-gas) economizer body, is arranged at entering of described low-level (stack-gas) economizer body one end
Mouth flue and the exhaust pass being arranged at the described low-level (stack-gas) economizer body other end；
No leakage flue stop valve, including the first No leakage flue stop valve being connected with described inlet flue duct and
The the second No leakage flue stop valve being connected with described exhaust pass；
Steam vent, including the first row pore being arranged on described inlet flue duct and be arranged at described exhaust pass
On second row pore；
Manhole door, including the first manhole door being arranged on described inlet flue duct and be arranged at described exhaust pass
On the second manhole door.
Further, low-level (stack-gas) economizer on-bne repair device described in the utility model,
Described inlet flue duct includes:
Inlet flue duct reducer, is connected with described low-level (stack-gas) economizer body one end, described first row pore and institute
State the first manhole door to be arranged on described inlet flue duct reducer；
Inlet flue duct body, is connected with described inlet flue duct reducer, described first No leakage flue stop valve
It is arranged on described inlet flue duct body；
Described exhaust pass includes:
Exhaust pass reducer, is connected with the described low-level (stack-gas) economizer body other end, described second row pore and
Described second manhole door is arranged on described exhaust pass reducer；
Exhaust pass body, is connected with described exhaust pass reducer, described second No leakage flue stop valve
It is arranged on described exhaust pass body.
Preferably, the diameter of described inlet flue duct reducer is more than the diameter of described inlet flue duct body, described
The diameter of exhaust pass reducer is more than the diameter of described exhaust pass body.
Further, low-level (stack-gas) economizer on-bne repair device described in the utility model, also include:
Bypass flue, one end is connected with described inlet flue duct, and the other end is connected with described exhaust pass, and across
It is connected to outside described first No leakage flue stop valve and described second No leakage flue stop valve.
Further, low-level (stack-gas) economizer on-bne repair device described in the utility model, also include:
Elastic sealing device, is arranged at described inlet flue duct and described first No leakage flue stop valve and described
Between exhaust pass and described second No leakage flue stop valve.
The beneficial effects of the utility model are:
Low-level (stack-gas) economizer on-bne repair device described in the utility model, makes low-level (stack-gas) economizer occur to leak or it
Upkeep operation can be carried out during his fault in the case of unit is non-stop-machine in time, recover low-level (stack-gas) economizer fortune as early as possible
OK, increase the operation time of low-level (stack-gas) economizer, reduce unit coal consumption, reduce the pollutant discharge amount of thermal power plant,
Guarantee that fired power generating unit keeps normal in the index of each side such as gross coal consumption rate, dust emission, improve unit simultaneously
Safety, solves the contradiction between low-level (stack-gas) economizer maintenance and unit safety operation well.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below by right
In embodiment or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that below,
Accompanying drawing in description is only embodiments more of the present utility model, for those of ordinary skill in the art,
On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of this utility model a kind of low-level (stack-gas) economizer on-bne repair device.
In figure:
1, low-level (stack-gas) economizer body；2, inlet flue duct；21, inlet flue duct reducer；22, inlet flue duct
Body；3, exhaust pass；31, exhaust pass reducer；32, exhaust pass body；4, first without letting out
Leakage flue stop valve；5, the second No leakage flue stop valve；6, first row pore；7, second row pore；
8, the first manhole door；9, the second manhole door.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, to the technical side in this utility model embodiment
Case is clearly and completely described, it is clear that described embodiment is only that this utility model part is real
Execute example rather than whole embodiments.Based on the embodiment in this utility model, ordinary skill people
The every other embodiment that member is obtained under not making creative work premise, broadly falls into this utility model
The scope of protection.
As it is shown in figure 1, a kind of low-level (stack-gas) economizer on-bne repair device described in the utility model, including:
Low-level (stack-gas) economizer, including low-level (stack-gas) economizer body 1, the import that is arranged at low-level (stack-gas) economizer body 1 one end
Flue 2 and the exhaust pass 3 being arranged at low-level (stack-gas) economizer body 1 other end；
No leakage flue stop valve, including the first No leakage flue stop valve 4 being connected with inlet flue duct 2 and
The the second No leakage flue stop valve 5 being connected with exhaust pass 3；
Steam vent, including the first row pore 6 being arranged on inlet flue duct 2 be arranged on exhaust pass 3
Second row pore 7；
Manhole door, including the first manhole door 8 being arranged on inlet flue duct 2 be arranged on exhaust pass 3
The second manhole door 9.
Wherein, No leakage flue stop valve is the equipment that those skilled in the art commonly use, and does not repeats at this.
Certainly, revealing to preferably reduce flue gas, can use the flue stop valve of the double dish of twin shaft, it is to cut
Only the both sides of valve fixed valve base, are separately installed with a power transmission shaft, and every power transmission shaft controls a valve plate respectively,
Faying face between valve plate can be to be provided with sealing device between the conical surface, or faying face.
Low-level (stack-gas) economizer on-bne repair device described in the utility model,
Described inlet flue duct 2 may include that
Inlet flue duct reducer 21, is connected with low-level (stack-gas) economizer body 1 one end, first row pore 6 and first
Manhole door 8 is arranged on inlet flue duct reducer 21；
Inlet flue duct body 22, is connected with inlet flue duct reducer 21, and the first No leakage flue stop valve 4 sets
It is placed on inlet flue duct body 22；
Described exhaust pass 3 may include that
Exhaust pass reducer 31, is connected with low-level (stack-gas) economizer body 1 other end, second row pore 7 and
Two manhole doors 9 are arranged on exhaust pass reducer 31；
Exhaust pass body 32, is connected with exhaust pass reducer 31, and the second No leakage flue stop valve 5 sets
It is placed on exhaust pass body 32.
Wherein it is preferred to, the diameter of described inlet flue duct reducer 21 is straight more than inlet flue duct body 22
Footpath, the diameter of exhaust pass reducer 31 is more than the diameter of exhaust pass body 32.
Low-level (stack-gas) economizer on-bne repair device described in the utility model, it is also possible to including:
Bypass flue, one end is connected with inlet flue duct 2, and the other end is connected with exhaust pass 3, and is connected across
Outside first No leakage flue stop valve 4 and the second No leakage flue stop valve 5.
The unit of low-level (stack-gas) economizer on-bne repair device described in the utility model for the multiple stage that is arranged in parallel, pot
Kiln gas can enter upstream device by other flues；For only arranging a low temperature described in the utility model
The unit of economizer on-bne repair device, boiler smoke can enter upstream device by the bypass flue arranged.
It addition, make layout separate unit low-level (stack-gas) economizer described in the utility model on-bne repair fill by arranging bypass flue
The unit put still can be able to continue to run with after being isolated.
Low-level (stack-gas) economizer on-bne repair device described in the utility model, it is also possible to including:
Elastic sealing device, is arranged at inlet flue duct 2 and the first No leakage flue stop valve 4 and exhaust pass 3
And between the second No leakage flue stop valve 5.
Low-level (stack-gas) economizer on-bne repair device described in the utility model, inlet flue duct 2 and the first No leakage cigarette
It is provided with elastic sealing device between road stop valve 4 and exhaust pass 3 and the second No leakage flue stop valve 5,
When No leakage flue stop valve is closed, elastic sealing device is in close contact with No leakage flue stop valve, can make cigarette
Gas leakage is less than 1%, meets on-bne repair requirement, and elastic sealing device is specifically as follows elastic slide block.
In order to this utility model is better described, now provide a kind of based on above-mentioned low-level (stack-gas) economizer on-bne repair
The repair method of device, comprises the following steps:
Inlet flue duct 2 is set in low-level (stack-gas) economizer body 1 one end, arranges at low-level (stack-gas) economizer body 1 other end
Exhaust pass 3；
Inlet flue duct 2 arranges the first No leakage flue stop valve 4, exhaust pass 3 arranges the second nothing
Leakage flue stop valve 5；
Inlet flue duct 2 arranges first row pore 6, exhaust pass 3 arranges second row pore 7；
Inlet flue duct 2 arranges the first manhole door 8, exhaust pass 3 arranges the second manhole door 9；
When low-level (stack-gas) economizer body 1 is properly functioning, open the first No leakage flue stop valve 4 and the second nothing
Leakage flue stop valve 5；
When low-level (stack-gas) economizer body 1 breaks down, close the first No leakage flue stop valve 4 and the second nothing
Leakage flue stop valve 5, so that low-level (stack-gas) economizer body 1 is isolated with inlet flue duct 2 and exhaust pass 3, right
Low-level (stack-gas) economizer body 1 carries out on-bne repair.
Wherein, when low-level (stack-gas) economizer body 1 breaks down, close the first No leakage flue stop valve 4 He
Second No leakage flue stop valve 5 so that low-level (stack-gas) economizer body 1 and inlet flue duct 2 and exhaust pass 3 every
From, the step that low-level (stack-gas) economizer body 1 is carried out on-bne repair specifically may include that
When low-level (stack-gas) economizer body 1 breaks down, close the first No leakage flue stop valve 4 and the second nothing
Leakage flue stop valve 5, to isolate inlet flue duct 2 and exhaust pass 3；
Open the first row pore 6 and the first manhole door 8 being arranged on inlet flue duct 2, and be arranged at outlet
Second row pore 7 on flue 3 and the second manhole door 9, so that segregate low-level (stack-gas) economizer body 1 is rapid
Cooling；
After low-level (stack-gas) economizer body 1 cools down, maintainer enters the first manhole door 8 and/or the second manhole door
9 pairs of low-level (stack-gas) economizer bodies 1 overhaul；
After low-level (stack-gas) economizer body 1 on-bne repair, close first row pore 6 and the first manhole door 8,
And second row pore 7 and the second manhole door 9, open the first No leakage flue stop valve 4 and the second No leakage
Flue stop valve 5.
Low-level (stack-gas) economizer on-bne repair device described in the utility model, makes low-level (stack-gas) economizer occur to leak or it
Upkeep operation can be carried out during his fault in the case of unit is non-stop-machine in time, recover low-level (stack-gas) economizer fortune as early as possible
OK, increase the operation time of low-level (stack-gas) economizer, reduce unit coal consumption, reduce the pollutant discharge amount of thermal power plant,
Guarantee that fired power generating unit keeps normal in the index of each side such as gross coal consumption rate, dust emission, improve unit simultaneously
Safety, solves the contradiction between low-level (stack-gas) economizer maintenance and unit safety operation well.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model,
All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, all
Within protection domain of the present utility model should be included in.
Claims (5)
1. a low-level (stack-gas) economizer on-bne repair device, it is characterised in that including:
Low-level (stack-gas) economizer, including low-level (stack-gas) economizer body (1), is arranged at described low-level (stack-gas) economizer body (1)
The inlet flue duct (2) of one end and be arranged at the exhaust pass (3) of described low-level (stack-gas) economizer body (1) other end；
No leakage flue stop valve, including the first No leakage flue cut-off being connected with described inlet flue duct (2)
Valve (4) and the second No leakage flue stop valve (5) being connected with described exhaust pass (3)；
Steam vent, including the first row pore (6) being arranged on described inlet flue duct (2) be arranged at institute
State the second row pore (7) on exhaust pass (3)；
Manhole door, including the first manhole door (8) being arranged on described inlet flue duct (2) be arranged at institute
State the second manhole door (9) on exhaust pass (3).
Low-level (stack-gas) economizer on-bne repair device the most according to claim 1, it is characterised in that
Described inlet flue duct (2) including:
Inlet flue duct reducer (21), is connected with described low-level (stack-gas) economizer body (1) one end, described first
Steam vent (6) and described first manhole door (8) are arranged on described inlet flue duct reducer (21)；
Inlet flue duct body (22), is connected with described inlet flue duct reducer (21), described first No leakage
Flue stop valve (4) is arranged on described inlet flue duct body (22)；
Described exhaust pass (3) including:
Exhaust pass reducer (31), is connected with described low-level (stack-gas) economizer body (1) other end, and described
Two steam vents (7) and described second manhole door (9) are arranged on described exhaust pass reducer (31)；
Exhaust pass body (32), is connected with described exhaust pass reducer (31), described second No leakage
Flue stop valve (5) is arranged on described exhaust pass body (32).
Low-level (stack-gas) economizer on-bne repair device the most according to claim 2, it is characterised in that described in enter
The diameter of mouth flue reducer (21) is more than the diameter of described inlet flue duct body (22), described outlet cigarette
The diameter of road reducer (31) is more than the diameter of described exhaust pass body (32).
Low-level (stack-gas) economizer on-bne repair device the most according to claim 1, it is characterised in that also include:
Bypass flue, one end is connected with described inlet flue duct (2), the other end and described exhaust pass (3)
Connect, and be connected across described first No leakage flue stop valve (4) and described second No leakage flue stop valve
(5) outside.
Low-level (stack-gas) economizer on-bne repair device the most according to claim 1, it is characterised in that also include:
Elastic sealing device, is arranged at described inlet flue duct (2) and described first No leakage flue stop valve (4)
And between described exhaust pass (3) and described second No leakage flue stop valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620207515.3U CN205535888U (en) | 2016-03-17 | 2016-03-17 | Low -level (stack -gas) economizer overhauls device on line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620207515.3U CN205535888U (en) | 2016-03-17 | 2016-03-17 | Low -level (stack -gas) economizer overhauls device on line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205535888U true CN205535888U (en) | 2016-08-31 |
Family
ID=56781866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620207515.3U Active CN205535888U (en) | 2016-03-17 | 2016-03-17 | Low -level (stack -gas) economizer overhauls device on line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205535888U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650658A (en) * | 2016-03-17 | 2016-06-08 | 北京赫宸环境工程股份有限公司 | Online maintenance device and method of low-temperature economizer |
-
2016
- 2016-03-17 CN CN201620207515.3U patent/CN205535888U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650658A (en) * | 2016-03-17 | 2016-06-08 | 北京赫宸环境工程股份有限公司 | Online maintenance device and method of low-temperature economizer |
| CN105650658B (en) * | 2016-03-17 | 2018-10-02 | 北京赫宸智慧能源科技股份有限公司 | A kind of low-level (stack-gas) economizer on-bne repair device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103225834B (en) | Boiler smoke blowdown heat pump of recovering residual heat heating system and using method thereof | |
| CN103334946B (en) | The online diagnosis of energy saving control system of a kind of thermal power plant's steam-driven induced draft fan | |
| CN205535888U (en) | Low -level (stack -gas) economizer overhauls device on line | |
| CN104930542A (en) | Ultra-supercritical coal-fired boiler unit start adjusting method and system | |
| CN202813337U (en) | Two-stage closed circulating boiler flue gas waste heat utilization system | |
| CN213132656U (en) | SCR denitration coal-fired power plant slag tap boiler waste gas processing system | |
| CN109813130B (en) | Heat recovery coke oven high temperature flue gas system | |
| CN207741585U (en) | A kind of heat recovery coke oven high-temperature flue gas system compact type technology arrangement structure | |
| CN205730865U (en) | Flue gas desulphurization system | |
| CN202675909U (en) | Rotary kiln waste heat recycling system | |
| CN105650658A (en) | Online maintenance device and method of low-temperature economizer | |
| CN203375464U (en) | Linkage type air induction device in thermal power plant desulfurization smoke system | |
| CN209783317U (en) | High-temperature flue gas system of heat recovery coke oven | |
| CN205037332U (en) | Boiler flue gas treating device | |
| CN107941031A (en) | A kind of heat recovery coke oven high-temperature flue gas system compact type method for arranging technological process | |
| CN207351232U (en) | A kind of coking flue gas purification system | |
| CN103335325B (en) | Coordinated type blower unit in heat-engine plant desulfurized flue gas system and method for operating thereof | |
| CN201953469U (en) | Comprehensive utilization system for residual gas of oil shale refining | |
| CN201897229U (en) | Flue system of waste heat boiler | |
| CN201028570Y (en) | Multilevel rotating energy conservation dust removing and harmful gas removing vertical boiler | |
| CN101943417A (en) | Flue system of waste heat boiler | |
| CN112228893A (en) | Air volume adjusting device and method for draught fan of large power station boiler | |
| CN204693453U (en) | A kind of self-priming air energy soot blower for boiler | |
| CN220828354U (en) | Induced draft fan and thermal power generation system | |
| CN210772276U (en) | Zero leakage system of flue butterfly valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 101500 Canbo Road, Miyun Economic Development Zone, Beijing 21 Patentee after: Beijing He Chen wisdom energy science and technologys LLC Address before: 101500 Canbo Road, Miyun Economic Development Zone, Beijing 21 Patentee before: BEIJING HECHEN ENVIRONMENTAL ENGINEERING CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220323 Address after: 333000 plant 3 in the acceleration base of Changnan new area, Jingdezhen City, Jiangxi Province Patentee after: Jiangxi hechen Technology Co.,Ltd. Address before: 101500 Canbo Road, Miyun Economic Development Zone, Beijing 21 Patentee before: Beijing He Chen wisdom energy science and technologys LLC |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An on-line maintenance device for low temperature economizer Effective date of registration: 20220928 Granted publication date: 20160831 Pledgee: Bank of China Limited Jingdezhen Branch|Jingdezhen branch of Postal Savings Bank of China Ltd. Pledgor: Jiangxi hechen Technology Co.,Ltd. Registration number: Y2022990000657 |