CN202289752U - Ceramic tube breakage protection structure of flue gas filter - Google Patents
Ceramic tube breakage protection structure of flue gas filter Download PDFInfo
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- CN202289752U CN202289752U CN2011203991718U CN201120399171U CN202289752U CN 202289752 U CN202289752 U CN 202289752U CN 2011203991718 U CN2011203991718 U CN 2011203991718U CN 201120399171 U CN201120399171 U CN 201120399171U CN 202289752 U CN202289752 U CN 202289752U
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Abstract
The utility model discloses a ceramic tube breakage protection structure of a flue gas filter. The lower part of a filter cylinder body is provided with a filter air cavity, the upper part of the filter cylinder body is provided with a clean air cavity, an air outlet end of a Venturi tube is connected with a backflushing air pipe through a connection pipe, a top air path of the backflushing air pipe is provided with clean air lead-out bypasses and is provided with a protective ball valve, and each clean air lead-out bypass is communicated with the clean air cavity through an air inner circulation loop and a clean air lead-in opening. According to the utility model, a backflushing air pipe air path of the conventional filter is skillfully utilized, after a ceramic tube is broken, the ceramic tube is sealed instantly, and the pollution to the whole filter is avoided, so that the filtering efficiency and quality are ensured; therefore, as long as the filtration of some groups of ceramic tubes is stopped, other groups of ceramic tubes can perform filtering operation normally, the whole device does not need to be stopped and overhauled, and only the group of broken ceramic tubes need to be overhauled and changed during maintenance, thus the maintenance efficiency is effectively improved, and a large amount of labor and material resources are saved.
Description
Technical field
The utility model relates to the flue gas purifying equipment field, and especially the earthenware of smoke filter damages the protection structure.
Background technology
" rich coal, oil starvation, weak breath " is the energy resources present situation of China; Develop novel Coal Chemical Industry; Particularly, make full use of the coal development Coal Chemical Industry and the novel gas generation technology of China's abundant, help the comprehensive utilization and the alternative oil of resource along with the development of China's Coal Gasification Technology; Meet the present industrial policy of China, and the purification techniques of coal gas seems particularly important in whole process flow.Smoke filter is the key equipment in combustion gas-Steam Combined Cycle technology; The ceramic membrane filter tube that 300～500 ℃ high temperature and high pressure gas gets into this equipment filters; The fine solid particle particle is isolated in the filter membrane surface on earthenware surface, and clean high-temperature gas is then separated out and is collected through the earthenware tube wall.The purification techniques of high-temperature gas is extremely important, and is totally thorough if the particle removal in the combustion gas gets, and then can prevent the erosion of particle to gas turbine blades, prevents to produce vibrations because of fine powder coheres, and prolongs the service life of blade, thereby guarantees the long-time running in power station; Through the high-temperature flue gas after purifying, can reach the requirement of new environmental protection (NSPS) in addition.
The internal structure of existing smoke filter is as shown in Figure 1, and filter cylinder 1 bottom is for filtering air cavity 11, and top is that 3, two air cavitys of clean air cavity are through the airtight isolation of dividing plate; Air inlet pipe 12 inserts from filter 7 bottoms and is arranged on the central authorities of filtering air cavity 11, organizes the periphery that ceramic filter tube assembly 4 is distributed on air inlet pipe more, and every group of ceramic filter tube assembly 4 includes many ceramic filter tubes, is generally 24～48; Be provided with Venturi tube 2 on the top of every group of ceramic filter tube assembly 4, lower air chamber in the conducting.Recoil tracheae 6 is arranged on filter cylinder 1 top, and the outlet side of Venturi tube 2 relatively and and Venturi tube 2 between the segment distance of being separated by, at the oral area of recoil tracheae 6 the recoil shower nozzle is set.Sidewall at clean air cavity 3 is provided with clean gas general export 10.
During real work; The high temperature and high pressure gas that carries dust particle gets into through air inlet pipe 12 and filters air cavity 11; In ceramic filter tube assembly 4, accomplish filtration, purification; Clean gas finally imports clean air cavity 3 and also outwards carries through clean gas general export 10 through ceramic filter tube centre bore and Venturi tube 2; And recoil when cleaning, recoil gas gets into 2 pairs of ceramic filter tubes of Venturi tube again and carries out back flush from 1 input of recoil tracheae.
The said structure of existing smoke filter; In case earthenware damage for a certain reason or cracked after; Flue gas can take place the flue gas that then contains dust particle wears the filter phenomenon and directly gets into clean air cavity 3; Sneak in the clean gas, subsequent technique and equipment caused damage, also make output gas can not be up to standard.Must overhaul and clean by the complete equipment hard stop after single earthenware damages, the waste of manpower and materials is very big; And when maintenance, also be difficult to confirm to damage the position of earthenware, must every group every to investigate, efficient is very low.
The utility model content
The applicant can not prevent that to above-mentioned existing smoke filter structure earthenware from damaging the back to follow-up purifying air pollution; And shortcomings such as maintenance workload is big; Provide a kind of earthenware of smoke filter rational in infrastructure to damage the protection structure; Thereby the flue gas that can solve behind the damage earthenware is worn the filter problem, and has reduced maintenance workload greatly.
The technical scheme that the utility model adopted is following:
A kind of earthenware of smoke filter damages the protection structure; The filter cylinder bottom is for filtering air cavity; Top is clean air cavity, filters air inlet pipe and many group ceramic filter tube assemblies are set in the air cavity, and the top of every group of ceramic filter tube assembly is provided with Venturi tube; The recoil tracheae feeds from clean air cavity top and is relative with the outlet side of Venturi tube, is provided with clean gas general export at the sidewall of clean air cavity; The outlet side of Venturi tube is connected through tube connector with the recoil tracheae; The top gas circuit of recoil tracheae is provided with clean gas and draws bypass and be provided with the protection ball valve, and each is organized clean gas and draws bypass and be communicated with clean air cavity through circulation loop, clean gas intake in the gas.
It is further characterized in that: said clean gas is drawn and is provided with the flue gas detecting sensor in the bypass, controls the keying of said protection ball valve through control circuit.
The beneficial effect of the utility model is following:
The utility model has utilized the recoil tracheae gas circuit of existing filter cleverly; The output pipe of each group ceramic filter tube assembly is independent separately; And be provided with detecting sensor and protect valve; After earthenware damages, seal this road pipeline immediately, the integral body of avoiding producing filter is polluted, thereby has guaranteed filter efficiency and quality.Like this; The earthenware that only need stop the part group filters; And the earthenware of other groups can normal filtration work, does not need entire equipment to shut down maintenance, only need overhaul and change the earthenware of this group of cleaning when safeguarding; Effectively raise the efficient of maintenance, practiced thrift the lot of manpower and material resources resource.
Description of drawings
Fig. 1 is the internal structure cutaway view of existing smoke filter.
Fig. 2 is the cutaway view of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the utility model is described.
As shown in Figure 2; The utility model has utilized the gas circuit of the recoil tracheae 6 of existing filter cleverly; The outlet side of each Venturi tube 2 is connected through tube connector 5 with recoil tracheae 6 oral areas on top; The top gas circuit of recoil tracheae 6 is provided with clean gas and draws bypass and be provided with protection ball valve 7; Clean gas is drawn and is provided with the flue gas detecting sensor in the bypass on each road, and the clean gas in each road is drawn bypass and is interconnected through circulation loop in the gas 8, and the clean gas intake 9 of concentrating clean air cavity 3 sidewalls of input to offer.
During real work; The high temperature and high pressure gas that carries dust particle gets into through air inlet pipe 12 and filters air cavity 11; In ceramic filter tube assembly 4, accomplish filtration, purification, clean gas passes through ceramic filter tube centre bore and Venturi tube 2, and gets into recoil tracheaes 6 through tube connector 5; Draw through clean gas that circulation loop 8, clean gas intake 9 import clean air cavity 3 in the protection ball valve 7, gas of bypass, finally outwards carry through clean gas general export 10.
If having an earthenware to damage back generation flue gas wears when filtering phenomenon; Being arranged on the clean gas in this road draws detecting sensor in the bypass and can identify immediately that fume amount exceeds standard in the gas; The protection ball valve 7 on this road is closed immediately voluntarily, contaminated gas is enclosed in this road pipeline, and can not gets into circulation loop 8 and clean air cavity 3 in the gas; Prevent to cause the integral body of filter to pollute, guaranteed filter efficiency and quality.Like this, only need stop this group earthenware filtration, and the earthenware of other groups can normal filtration work, does not need entire equipment to shut down maintenance.Owing to be provided with many group ceramic filter tube assemblies in each smoke filter, be generally 12～24 groups, the break-off of therefore partly organizing earthenware can't exert an influence.When equipment has the free time or during conventional maintenance, shut down again and change and safeguard that only need maintenance and change the earthenware that cleaning is closed group this moment, effectively raises the efficient of maintenance, practiced thrift the lot of manpower and material resources resource.
More than describing is the explanation to the utility model, is not the qualification to utility model, and the utility model institute restricted portion is referring to claim, and under the situation of the utility model spirit, the utility model can be done any type of modification.
Claims (2)
1. the earthenware of a smoke filter damages the protection structure; Filter cylinder (1) bottom is for filtering air cavity (11); Top is clean air cavity (3); Filter air inlet pipe (12) and many group ceramic filter tube assemblies (4) are set in the air cavity (11); The top of every group of ceramic filter tube assembly (4) is provided with Venturi tube (2), and recoil tracheae (6) feeds from clean air cavity (3) top and be relative with the outlet side of Venturi tube (2), is provided with clean gas general export (10) at the sidewall of clean air cavity (3); It is characterized in that: the outlet side of Venturi tube (2) is connected through tube connector (5) with recoil tracheae (6); The top gas circuit of recoil tracheae (6) is provided with clean gas and draws bypass and be provided with protection ball valve (7), and each is organized clean gas and draws bypass and be communicated with clean air cavity (3) through circulation loop (8), clean gas intake (9) in the gas.
2. the earthenware according to the described smoke filter of claim 1 damages the protection structure, and it is characterized in that: said clean gas is drawn and is provided with the flue gas detecting sensor in the bypass, controls the keying of said protection ball valve (7) through control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203991718U CN202289752U (en) | 2011-10-19 | 2011-10-19 | Ceramic tube breakage protection structure of flue gas filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203991718U CN202289752U (en) | 2011-10-19 | 2011-10-19 | Ceramic tube breakage protection structure of flue gas filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202289752U true CN202289752U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203991718U Expired - Lifetime CN202289752U (en) | 2011-10-19 | 2011-10-19 | Ceramic tube breakage protection structure of flue gas filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202289752U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203143A (en) * | 2013-04-25 | 2013-07-17 | 中国石油大学(北京) | Combined filtering pipe for high-temperature gas filtering and filter provided with combined filtering pipe |
| CN104436918A (en) * | 2014-11-11 | 2015-03-25 | 华北电力大学（保定） | Automatic fail preventing device for ceramic filter |
| CN108176190A (en) * | 2017-12-30 | 2018-06-19 | 江苏永益环保科技有限公司 | House exhaust processing activated carbon case |
| CN108525409A (en) * | 2018-06-04 | 2018-09-14 | 中国石油大学(北京) | The determination of failure screen pipe, guard method and the device of filter |
| CN112090179A (en) * | 2020-04-08 | 2020-12-18 | 成都易态科技有限公司 | Filter |
-
2011
- 2011-10-19 CN CN2011203991718U patent/CN202289752U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203143A (en) * | 2013-04-25 | 2013-07-17 | 中国石油大学(北京) | Combined filtering pipe for high-temperature gas filtering and filter provided with combined filtering pipe |
| CN104436918A (en) * | 2014-11-11 | 2015-03-25 | 华北电力大学（保定） | Automatic fail preventing device for ceramic filter |
| CN108176190A (en) * | 2017-12-30 | 2018-06-19 | 江苏永益环保科技有限公司 | House exhaust processing activated carbon case |
| CN108525409A (en) * | 2018-06-04 | 2018-09-14 | 中国石油大学(北京) | The determination of failure screen pipe, guard method and the device of filter |
| CN112090179A (en) * | 2020-04-08 | 2020-12-18 | 成都易态科技有限公司 | Filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |
|
| CX01 | Expiry of patent term |