CN201159471Y - High temperature flue gas ejector - Google Patents
High temperature flue gas ejector Download PDFInfo
- Publication number
- CN201159471Y CN201159471Y CNU2008200552191U CN200820055219U CN201159471Y CN 201159471 Y CN201159471 Y CN 201159471Y CN U2008200552191 U CNU2008200552191 U CN U2008200552191U CN 200820055219 U CN200820055219 U CN 200820055219U CN 201159471 Y CN201159471 Y CN 201159471Y
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- CN
- China
- Prior art keywords
- flue gas
- mixing chamber
- temperature flue
- diffuser
- gas injector
- 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.)
- Expired - Lifetime
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Abstract
A high-temperature flue gas ejector is used for boiler flue gas recirculation in a waste incineration power generation system to enable the flue gas waste heat to be further used. The high-temperature flue gas ejector is characterized in that the ejector comprises a working jet nozzle, a receiving chamber, a mixing chamber, a diffuser and the internal fire-resistant concrete; the nozzle head of the working jet nozzle is arranged inside the receiving chamber; the mixing chamber has a driving fluid entrance; the mixing chamber is communicated with the receiving chamber; the diffuser is communicated with the mixing chamber; the mixing chamber is provided with a preset diversion length; the fire-resistant concrete is arranged at the inner walls of the receiving chamber, the mixing chamber and the diffuser.
Description
Technical field
The utility model high-temperature flue gas injector relates generally to garbage incinerating power plant (drying garbage) and Industrial Stoves smoke evacuation, directly applies to boiler smoke recirculation in the waste incineration and generating electricity system, and fume afterheat is further utilized.
Background technology
When on various refuse-burning plants and part Industrial Stoves, needing to utilize fume afterheat and smoke evacuation at present, generally adopt high temperature draught fan, the flue gas of directly introducing about 300 ℃ from boiler back end ductwork carries out heat exchange or smoke evacuation, because high temperature draught fan makes and can't realize flue gas recirculation UTILIZATION OF VESIDUAL HEAT IN or smoke evacuation when flue-gas temperature is higher than 600 ℃ the restriction (being generally less than 500 ℃) and the higher price of temperature.
The utility model content
The purpose of this utility model provides a kind of flue-gas temperature of can effectively utilizing at high-temperature flue gas injector more than 600 ℃, can't realize the difficult problem of recycling (garbage drying) with solution high-temperature flue gas in garbage incinerating power plant.
In order to realize described purpose, high-temperature flue gas injector of the present utility model comprises main jet, receiving chamber, mixing chamber and diffuser, main jet is used to spray working fluid, the nozzle head of main jet is arranged in the receiving chamber, mixing chamber is provided with the driving fluid inlet, mixing chamber and receiving chamber are communicated with, and diffuser and mixing chamber are communicated with, and mixing chamber has predetermined water conservancy diversion length injector.
Described high-temperature flue gas injector, its further characteristics are: mixing chamber comprises reducing pipe and cylinder body, an end of reducing pipe is connected with mixing chamber, and the other end is connected with this cylinder body.
Described high-temperature flue gas injector, its further characteristics are: the monolateral angle of reducing pipe is smaller or equal to 45 degree.
Described high-temperature flue gas injector, its further characteristics are that the monolateral angle of this diffuser is 20 degree.
Described high-temperature flue gas injector, its further characteristics are: the inwall of this receiving chamber, mixing chamber, diffuser is provided with refractory concrete.
Described high-temperature flue gas injector, its further characteristics are: this main jet is a negative throat noz(zle).
The utility model high-temperature flue gas injector adopts high temperature draught fan to carry out flue gas recirculating technique with tradition and compares, have following characteristics:
1. the utility model can at high temperature be realized the flue gas injection.Common high temperature draught fan can only carried out the flue gas recirculation utilization below 500 ℃, this device can be regulated in 100 ~ 1000 ℃ of temperature ranges.Adaptability is extensive.
2. load regulation range is wide.Can change the operating pressure of working fluid or change main jet according to the actual motion needs, just can realize different injections, adapt to the different requirements of flue gas recirculation amount than coefficient.
3. simple in structure, processing and fabricating is easy, and is easy to install.Can be used for various Industrial Stoves, refuse-burning plant drying garbage and environmental protection field.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is the half sectional view of high-temperature flue gas injector of the present utility model;
Fig. 2 is the cutaway view along A-A line among Fig. 1.
The specific embodiment
See figures.1.and.2 simultaneously, the utility model high-temperature flue gas injector mainly is made up of main jet 1, receiving chamber 2, mixing chamber 3, diffuser 4 and injector internal refractory thermal insulation concrete etc., the nozzle head of main jet 1 is arranged in the receiving chamber 2, receiving chamber 2 and mixing chamber 3 are communicated with, diffuser 4 and mixing chamber 3 are communicated with, the inwall of receiving chamber 2, mixing chamber 3, diffuser 4 is provided with the fire resistant heat preserving concrete, and receiving chamber 2, mixing chamber 3, diffuser 4 can roll the integral body that is welded by steel plate.During common engineering was used, gas Mach number average required less than 1, and therefore, main jet 1 preferred design becomes negative throat noz(zle).Working fluid can be a compressed air, working fluid comes out from nozzle 1 with very high speed, enter the receiving chamber 2 of injector, the driving fluid inlet is set on the receiving chamber 2, working fluid at a high speed sucks the lower driving fluid of the pressure before injector in the receiving chamber 2 from the driving fluid inlet, and the driving fluid that is inhaled into can be the high-temperature flue gas in the boiler furnace.Driving fluid and working fluid enter the cylindrical mixing chamber 3 of band reducing pipe from receiving chamber 2, the monolateral angle of the reducing pipe of mixing chamber 3 is smaller or equal to 45 °, the cylindrical body of mixing chamber 3 has predetermined length, being beneficial to working fluid and driving fluid mixes in the cylindrical body of mixing chamber 3, speed also obtains equilibrium, mixed airflow process mixing chamber 3 at the uniform velocity supercharging enters diffuser 4 continuation superchargings, the monolateral folder of diffuser 4 is approximately 20 °, and diffuser 4 mixed airflow according to actual needs carries out flue gas recirculation utilization or discharging.
The utility model high-temperature flue gas injector has been applied on the garbage power engineering.Because the house refuse calorific value is low, moisture height, rubbish are difficult to burning.Utilize the utility model high-temperature flue gas injector, high-temperature flue gas about about 1000 ℃ in the boiler furnace is introduced in the preposition rotary kiln, make rubbish drying, pyrolytic gasification and partial combustion rapidly in kiln, no longer need to be provided with separately burner rubbish is carried out pre-thermal decomposition, also cancel precombustion chamber, improved garbage treatment quantity and efficiency of combustion.
The utility model is applicable to various garbage incinerating power plants, Industrial Stoves and environmental protection field.
Claims (6)
1. high-temperature flue gas injector, be used for garbage incinerating power plant, it is characterized in that: comprise main jet, receiving chamber, mixing chamber and diffuser, main jet is used to spray working fluid, the nozzle head of main jet is arranged in the receiving chamber, and mixing chamber is provided with the driving fluid inlet, and mixing chamber and receiving chamber are communicated with, diffuser and mixing chamber are communicated with, and mixing chamber has predetermined water conservancy diversion length.
2. high-temperature flue gas injector according to claim 1 is characterized in that mixing chamber comprises reducing pipe and cylinder body, and an end of reducer is connected with mixing chamber, and the other end is connected with this cylinder body.
3. high-temperature flue gas injector according to claim 2 is characterized in that, the monolateral angle of reducing pipe is smaller or equal to 45 degree.
4. high-temperature flue gas injector according to claim 1 is characterized in that, the monolateral angle of this diffuser is 20 degree.
5. high-temperature flue gas injector according to claim 1 is characterized in that the inwall of this receiving chamber, mixing chamber and diffuser is provided with refractory concrete.
6. high-temperature flue gas injector according to claim 1 is characterized in that it is negative throat noz(zle) that mouth is bumped in this work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200552191U CN201159471Y (en) | 2008-01-30 | 2008-01-30 | High temperature flue gas ejector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200552191U CN201159471Y (en) | 2008-01-30 | 2008-01-30 | High temperature flue gas ejector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201159471Y true CN201159471Y (en) | 2008-12-03 |
Family
ID=40110053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200552191U Expired - Lifetime CN201159471Y (en) | 2008-01-30 | 2008-01-30 | High temperature flue gas ejector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201159471Y (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806459A (en) * | 2010-04-16 | 2010-08-18 | 施芜 | Flue gas ejector |
| CN102072648A (en) * | 2011-01-20 | 2011-05-25 | 江苏中圣园科技股份有限公司 | Flameless combustion annular sleeve kiln |
| CN102142048A (en) * | 2011-01-25 | 2011-08-03 | 西安交通大学 | Universal optimization design method for ejector |
| CN102374541A (en) * | 2010-08-20 | 2012-03-14 | 贵州航空发动机研究所 | Ejection mixed-type combustion device for incinerator |
| CN102798137A (en) * | 2012-08-24 | 2012-11-28 | 广东格莱斯陶瓷有限公司 | Hot-eddy combustion-supporting structure |
| CN103062788A (en) * | 2013-01-09 | 2013-04-24 | 创尔特热能科技(中山)有限公司 | Combustion furnace smoke exhausting method |
| CN103335311A (en) * | 2013-06-13 | 2013-10-02 | 广东新明珠陶瓷集团有限公司 | Turbine efficient combustion-supporting spray gun |
| CN103638757B (en) * | 2013-12-13 | 2015-05-20 | 中国天辰工程有限公司 | High temperature ejector |
| CN104677125A (en) * | 2015-02-12 | 2015-06-03 | 中山市迦南节能环保科技有限公司 | Heating gas aluminum melting furnace energy-saving combustion system |
| CN105403040A (en) * | 2015-11-19 | 2016-03-16 | 广东工业大学 | Smoke recycling auxiliary burning type aluminum melting furnace |
| CN106338081A (en) * | 2016-11-03 | 2017-01-18 | 中国公路车辆机械有限公司 | Dual-micro adjustable high-temperature flue gas ejector without receiving room |
| CN107750319A (en) * | 2015-06-16 | 2018-03-02 | 霍尼韦尔国际公司 | The burner of jet pump with combustion air driving |
| CN108253411A (en) * | 2018-03-23 | 2018-07-06 | 河北科技大学 | Biomass gasification fired boiler with induction apparatus |
| CN108613203A (en) * | 2017-07-19 | 2018-10-02 | 夏华萍 | Biomass boiler |
-
2008
- 2008-01-30 CN CNU2008200552191U patent/CN201159471Y/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806459A (en) * | 2010-04-16 | 2010-08-18 | 施芜 | Flue gas ejector |
| CN102374541A (en) * | 2010-08-20 | 2012-03-14 | 贵州航空发动机研究所 | Ejection mixed-type combustion device for incinerator |
| CN102072648A (en) * | 2011-01-20 | 2011-05-25 | 江苏中圣园科技股份有限公司 | Flameless combustion annular sleeve kiln |
| CN102142048A (en) * | 2011-01-25 | 2011-08-03 | 西安交通大学 | Universal optimization design method for ejector |
| CN102798137A (en) * | 2012-08-24 | 2012-11-28 | 广东格莱斯陶瓷有限公司 | Hot-eddy combustion-supporting structure |
| CN103062788A (en) * | 2013-01-09 | 2013-04-24 | 创尔特热能科技(中山)有限公司 | Combustion furnace smoke exhausting method |
| CN103335311A (en) * | 2013-06-13 | 2013-10-02 | 广东新明珠陶瓷集团有限公司 | Turbine efficient combustion-supporting spray gun |
| CN103638757B (en) * | 2013-12-13 | 2015-05-20 | 中国天辰工程有限公司 | High temperature ejector |
| CN104677125A (en) * | 2015-02-12 | 2015-06-03 | 中山市迦南节能环保科技有限公司 | Heating gas aluminum melting furnace energy-saving combustion system |
| CN104677125B (en) * | 2015-02-12 | 2018-04-13 | 中山市迦南节能环保科技有限公司 | Heating gas aluminium melting furnace energy-saving combustion system |
| CN107750319A (en) * | 2015-06-16 | 2018-03-02 | 霍尼韦尔国际公司 | The burner of jet pump with combustion air driving |
| CN105403040A (en) * | 2015-11-19 | 2016-03-16 | 广东工业大学 | Smoke recycling auxiliary burning type aluminum melting furnace |
| CN105403040B (en) * | 2015-11-19 | 2019-04-05 | 广东工业大学 | Flue gas recirculation auxiliary combustion formula aluminium melting furnace |
| CN106338081A (en) * | 2016-11-03 | 2017-01-18 | 中国公路车辆机械有限公司 | Dual-micro adjustable high-temperature flue gas ejector without receiving room |
| CN108613203A (en) * | 2017-07-19 | 2018-10-02 | 夏华萍 | Biomass boiler |
| CN108800110A (en) * | 2017-07-19 | 2018-11-13 | 夏华萍 | boiler |
| CN108253411A (en) * | 2018-03-23 | 2018-07-06 | 河北科技大学 | Biomass gasification fired boiler with induction apparatus |
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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: 20081203 |
|
| CX01 | Expiry of patent term |