CN215637287U - Reducing tee separator - Google Patents
Reducing tee separator Download PDFInfo
- Publication number
- CN215637287U CN215637287U CN202121869435.1U CN202121869435U CN215637287U CN 215637287 U CN215637287 U CN 215637287U CN 202121869435 U CN202121869435 U CN 202121869435U CN 215637287 U CN215637287 U CN 215637287U
- Authority
- CN
- China
- Prior art keywords
- coal powder
- outlet
- thick
- powder outlet
- reducing tee
- 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
Images
Abstract
The utility model relates to a reducing tee separator which comprises a reducing tee body (1), wherein the reducing tee body (1) is provided with an inlet part (1.1), two thick coal powder outlets (1.2) and a thin coal powder outlet (1.3) with different calibers, a certain included angle is formed between the pipeline axes of the thick coal powder outlet (1.2) and the thin coal powder outlet (1.3), the thick coal powder outlet (1.2) and the thin coal powder outlet (1.3) are connected with the inlet part (1.1) through a bent part (1.4), and a switching baffle plate (2) is arranged at the front part of the thick coal powder outlet (1.2). The utility model can realize the switching between the normal mode and the low-load mode of the direct-flow combustor, can also adopt the original mode to work, simultaneously can adjust the two-phase air quantity of the outlet in a certain range by realizing the adjustment of the powder quantity, and has the advantages of simple structure, high separation efficiency and capability of meeting the requirement of the powder quantity distribution in a certain range.
Description
Technical Field
The utility model relates to the technical field of boiler combustion, in particular to a pulverized coal separation device suitable for a precombustion chamber, and specifically relates to a reducing three-way separator.
Background
China is used as a coal-fired big country, and the total installed capacity of coal-fired power generation is the first worldwide. In recent years, with the adjustment of Chinese energy strategy, wind primary wind power, photovoltaic and other renewable energy power generation technologies are rapidly developed, but due to the strong influences of randomness and intermittence of wind power and photovoltaic power generation, the large-scale grid connection of the wind primary wind power, the photovoltaic and other renewable energy power generation technologies brings adverse effects to the safe and stable operation of a power grid, and the phenomena of wind abandonment and light abandonment in different degrees exist in various places. In order to improve the consumption capacity of renewable energy, thermal power generating units bearing more than 70% of the electricity generated nationwide must bear the peak regulation task, and the power plant implementing deep peak regulation aims to reduce the original lowest power generation load from about 50% of rated load to below 30% of rated load.
The low-load stable combustion capability of the boiler is an important factor for limiting the peak regulation depth of a unit, and influences such factors as coal types, combustion equipment and operation factors. Therefore, to realize stable combustion, the whole combustion system of the boiler must be modified, including the modification of the combustor.
The transformation of the prior common low-load stable-combustion burner mostly relates to a coal powder shade separation technology and a hot flue gas backflow technology, and a precombustion chamber type cyclone burner combines the two technologies. The swirl burner of the precombustion chamber type is not used alone as a conventional burner, and is usually used in combination with a direct-flow burner. How to combine the two is the key of the combined stable combustion technology, the related combination comprises a pulverized coal separation technology, and a pulverized coal separator is urgently needed to be developed for pulverized coal separation and concentration and dilution ratio adjustment under the condition that a precombustion chamber type cyclone burner and a direct-current burner share a powder supply pipeline.
The existing coal dust concentration-dilution separator is usually used for coal dust separation of an independent nozzle (such as a shutter type) or coal dust separation of a burner with the same type and fixed coal dust separation operation parameters (such as PM type), but lacks the coal dust separation of a special-shaped combined burner and is a coal dust separator with adjustable powder quantity (concentration-dilution ratio) and air quantity.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides the reducing three-way separator which has simple structure and high separation efficiency and can meet the powder distribution requirement in a certain range.
The utility model is realized by the following technical scheme, and provides a reducing tee separator which comprises a reducing tee body, wherein the reducing tee body is provided with an inlet part, two thick coal powder outlets and two thin coal powder outlets with different calibers, a certain included angle is formed between the pipeline axes of the thick coal powder outlets and the thin coal powder outlets, the thick coal powder outlets and the thin coal powder outlets are connected with the inlet part through bent parts, and the front parts of the thick coal powder outlets are provided with switching baffles.
After the scheme is adopted, the utility model designs the reducing three-way separator, the coal powder basic separation function is realized by utilizing the turning inertia effect of the coal powder and the gradient difference of the flow velocity of the medium of the elbow, the thick powder enters the side of the precombustion chamber, the thin powder enters the direct-flow combustor, the separator can realize the separation of the coal powder pipeline and the coal powder which are shared by the precombustion chamber type cyclone combustor and the direct-flow combustor, when in use, the outlet of the thick coal powder is connected with the precombustion chamber type cyclone combustor, the outlet of the thin coal powder is connected with the direct-flow combustor, the utility model can separate the coal powder into three different diameters, the size of the inlet and outlet interfaces is the same with the size of the original powder pipe and the DC burner interface, thus the original boiler powder pipe can be fully utilized when in use without rearranging the powder pipe, and the improvement of a direct current burner is not needed, and the existing performance of the boiler is not changed.
Preferably, a stop block which can be adjusted up and down is arranged at the top of the bent part at the front side of the light coal powder outlet. This preferred scheme accessible is changed the height and the angle that the dog was changed to the dog and is realized export powder volume secondary distribution.
Preferably, the front end of the light coal powder outlet is also provided with a throttling ring. According to the optimal scheme, secondary distribution of outlet air volume can be realized by adjusting the opening of the throttle ring.
Preferably, the concentrated coal powder outlet is provided with a differential pressure gauge. According to the optimal scheme, the wind speed of the light-phase powder pipe can be judged according to the differential pressure of the differential pressure gauge.
Preferably, the inlet part, the concentrated coal powder outlet and the light coal powder outlet are provided with connecting pipes convenient for installation. The optimized proposal can be conveniently connected with the raw coal powder pipe, the precombustion chamber type cyclone burner and the direct-current burner when in use.
In summary, the reducing three-way separator is designed, and can be used for connecting and using a prechamber type cyclone burner and a direct-flow burner in a mixed manner, so that the switching between a normal mode and a low-load mode of the direct-flow burner can be realized, the original mode can be adopted for working, the adjustment of the powder amount is realized, the two-phase air volume at the outlet can be adjusted within a certain range, and the reducing three-way separator has the advantages of simple structure, high separation efficiency and capability of meeting the requirement of powder amount distribution within a certain range.
Drawings
FIG. 1 is a schematic structural diagram of a three-way separator according to the present invention;
FIG. 2 is a schematic top view of the structure of FIG. 1;
shown in the figure:
1. reducing tee bend body, 1.1, entry part, 1.2, dense buggy export, 1.3, light buggy export, 1.4, curved portion, 1.5, takeover, 2, switching baffle, 3, dog, 4, choke, 5, differential pressure gauge.
Detailed Description
In order to clearly illustrate the technical features of the present invention, the present invention is further illustrated by the following detailed description with reference to the accompanying drawings.
As shown in fig. 1 and 2, a reducing tee separator is provided, which comprises a reducing tee body 1, wherein the reducing tee body 1 is provided with an inlet 1.1, two thick coal powder outlets 1.2 and two thin coal powder outlets 1.3 with different calibers, a certain included angle is formed between the pipeline axes of the thick coal powder outlets 1.2 and the thin coal powder outlets 1.3, the thick coal powder outlets 1.2 and the thin coal powder outlets 1.3 are connected with the inlet 1.1 through a bent part 1.4, and a switching baffle 2 is arranged at the front part of the thick coal powder outlet 1.2.
In this embodiment, the top of the bent portion 1.4 at the front side of the light coal powder outlet 1.3 is provided with a stop block 3 capable of being adjusted up and down, the front end of the outlet of the light coal powder outlet 1.3 is also provided with a throttle ring 4, the outlet of the thick coal powder 1.2 is provided with a differential pressure gauge 5, and the inlet portion 1.1, the outlet of the thick coal powder 1.2 and the outlet of the light coal powder 1.3 are provided with a connecting pipe 1.5 convenient for installation.
Finally, it should be further noted that the above examples and descriptions are not limited to the above embodiments, and technical features of the present invention that are not described may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only for illustrating the technical solutions of the present invention and not for limiting the present invention, and the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that changes, modifications, additions or substitutions within the spirit and scope of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, and shall also fall within the scope of the claims of the present invention.
Claims (5)
1. The utility model provides a reducing tee bend separator, its characterized in that includes reducing tee bend body (1), reducing tee bend body (1) have into portion (1.1) and two different thick buggy exports of bore (1.2) and light buggy export (1.3), the pipeline axis of thick buggy export (1.2) and light buggy export (1.3) between have certain contained angle, link together through curved portion (1.4) that have between thick buggy export (1.2) and the light buggy export (1.3) and the portion of entrying (1.1), thick buggy export (1.2) front portion is equipped with switches baffle (2).
2. A reducer tee separator according to claim 1, characterized in that a stop block (3) which can be adjusted up and down is arranged on the top of the bent part (1.4) at the front side of the pulverized coal outlet (1.3).
3. The reducer tee separator according to claim 1, wherein a throttle washer (4) is further provided at the front end of the outlet of the pulverized coal outlet (1.3).
4. A reducer tee separator according to claim 1, characterized in that the concentrated coal dust outlet (1.2) is provided with a differential pressure gauge (5).
5. A reducer tee separator according to claim 1, characterized in that the inlet portion (1.1), the dense coal powder outlet (1.2) and the weak coal powder outlet (1.3) are provided with a connecting pipe (1.5) for easy installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121869435.1U CN215637287U (en) | 2021-08-11 | 2021-08-11 | Reducing tee separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121869435.1U CN215637287U (en) | 2021-08-11 | 2021-08-11 | Reducing tee separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215637287U true CN215637287U (en) | 2022-01-25 |
Family
ID=79896977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121869435.1U Active CN215637287U (en) | 2021-08-11 | 2021-08-11 | Reducing tee separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215637287U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116839024A (en) * | 2023-06-25 | 2023-10-03 | 北京天地融创科技股份有限公司 | Pulverized coal concentrator, design method thereof and pulverized coal combustion system |
| CN116878018A (en) * | 2023-07-07 | 2023-10-13 | 国能双辽发电有限公司 | Fan coal mill pulverizing system capable of improving deep regulating capacity |
-
2021
- 2021-08-11 CN CN202121869435.1U patent/CN215637287U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116839024A (en) * | 2023-06-25 | 2023-10-03 | 北京天地融创科技股份有限公司 | Pulverized coal concentrator, design method thereof and pulverized coal combustion system |
| CN116878018A (en) * | 2023-07-07 | 2023-10-13 | 国能双辽发电有限公司 | Fan coal mill pulverizing system capable of improving deep regulating capacity |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215637287U (en) | Reducing tee separator | |
| CN107270274B (en) | Novel starting mode of ultra-supercritical coal-fired unit realizes unit full-load denitration input | |
| CN106246252A (en) | A kind of peak load stations integrating IGCC and supercritical unit and peak regulating method | |
| CN1151001A (en) | Controllable gradation separating spiral-flow powdered coal burning method and device | |
| CN113028393A (en) | Ultra-low load stable combustion burner suitable for deep peak regulation | |
| CN107101187B (en) | Heating system and heating method for supercritical carbon dioxide boiler | |
| CN202747760U (en) | Primary air temperature bidirectional adjusting system for power station boiler | |
| CN113757644A (en) | Combined type combustion stabilizer with controllable concentration and separated coal powder concentration and dilution | |
| Zhao | Analysis of solar aided steam production in a pulverized coal boiler | |
| US20220325885A1 (en) | Low-carbon energy utilization system for steam and power cogeneration of oil field | |
| CN211372393U (en) | Arrangement structure for adjusting circulating material quantity | |
| CN209622832U (en) | A kind of waste heat flue gas recycling and balanced mixed flow distributor | |
| CN215723166U (en) | Combined type combustion stabilizer with controllable concentration and separated coal powder concentration and dilution | |
| CN201531861U (en) | Double-air-intake resuperheating reversed-heat-exchange double-pressure exhaust-heat boiler | |
| CN201106844Y (en) | Horizontal darkandlight micro-oil firing pulverized coal burner | |
| CN208365502U (en) | It is a kind of surely to fire system by the pulverized-coal fired boiler of fuel of coal | |
| CN102322634A (en) | Pulverized coal combustor capable of being ignited with little gasified oil | |
| CN202008138U (en) | Lean coal rotational-flow combustor | |
| CN110822411A (en) | Low NO of tower boiler under low loadXLow temperature flue gas recirculation system and method | |
| Ye et al. | Research on optimal operation strategy with ancillary services of flexible thermal power units | |
| CN104251487A (en) | Method for improving boiler combustion economy of tangential combustion anthracite coal boiler | |
| CN110319600A (en) | A kind of steam heat pump and photo-thermal heat storage boiler association system | |
| CN211260776U (en) | Low-load stable combustion equipment of tangential firing boiler of thermal power plant | |
| CN111964030B (en) | Heating surface embedded system capable of adapting to multi-proportion lignite mixed combustion of supercritical boiler | |
| CN113280332A (en) | Direct-current stable-combustion burner system based on radial concentration of pulverized coal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |