CN202402080U - Blast furnace top gas recovery turbine unit (TRT) capable of feeding gas laterally and exhausting gas axially - Google Patents
Blast furnace top gas recovery turbine unit (TRT) capable of feeding gas laterally and exhausting gas axially Download PDFInfo
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- CN202402080U CN202402080U CN2011205534581U CN201120553458U CN202402080U CN 202402080 U CN202402080 U CN 202402080U CN 2011205534581 U CN2011205534581 U CN 2011205534581U CN 201120553458 U CN201120553458 U CN 201120553458U CN 202402080 U CN202402080 U CN 202402080U
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Abstract
The utility model discloses a blast furnace top gas recovery turbine unit (TRT) capable of feeding gas laterally and exhausting gas axially. The TRT comprises a gas feed shell, a gas exhaust shell, a flow guide component, a rotor, a moving vane arranged on the rotor, a static vane bearing cylinder, a static vane arranged on the static vane bearing cylinder and a base for supporting the components, wherein the gas feed shell and the gas exhaust shell are assembled to form a whole; an assembly mode is that the central line of a gas inlet of the gas feed shell is perpendicularly intersected with the central line of the gas exhaust shell in a space; a horizontal plane in which the central line of the gas inlet of the gas feed shell is positioned is higher than that in which the central line of the gas exhaust shell is positioned; the flow guide component and the static vane bearing cylinder are arranged in the gas feed shell; a main body part of the rotor is arranged in the gas feed shell and the gas exhaust shell; and the central lines of the flow guide component and the rotor are overlapped with that of the gas exhaust shell. The pneumatic distribution of the TRT with the structure feeds gas laterally and exhausts gas axially in the horizontal direction; coal gas laterally enters the TRT from the upper part of a section of a main machine of the TRT through a pipeline in the horizontal direction and is axially exhausted in the horizontal direction after being expanded to do work.
Description
Technical field
The utility model relates to the blast-furnace top gas recovery turbine (being called for short TRT) that is used to reclaim the blast-furnace top gas recovery energy.
Background technique
Blast-furnace top gas recovery turbine generator (TRT) is the by-product with blast furnace process---pressure ability and heat energy that top gas has are converted into mechanical energy, drive generator for electricity generation, a kind of energy saving device that carries out energy recovery.
Tradition TRT is a n shape aerodynamic arrangement; Said n shape aerodynamic arrangement is radially upwards air inlet; Radially exhaust downwards, under n shape aerodynamic arrangement mode, not enough below existing: (1) coal gas has twice wide-angle to turn to before and after acting; Turn to energy loss although adopted import and export water conservancy diversion basin and guide plate to reduce as far as possible, but still can not avoid energy loss; (2) because the gas inlet pipeline is to get into TRT from the bottom; Because of pipe diameter and pipe bending radius reason, unit is installed the basic platform height can not be lower than 8 meters, adds the unit maintenance height; The TRT factory building height must not be lower than 13 meters, cause TRT civil works cost high.
Summary of the invention
The purpose of the utility model is to overcome the existing technology deficiency, and a kind of side direction air inlet axial exhaust TRT is provided, and to reduce energy loss, reduces infrastructure cost and cycle, convenient on-the-spot unit and piping erection.
The said side direction air inlet of the utility model axial exhaust TRT; Comprise air intake casing, exhaust casing, guiding subassembly, rotor, be installed in epitrochanterian movable vane, stator blade holds cylinder, be installed in the base that stator blade holds the stator blade on the cylinder and supports each member; Said air intake casing and exhaust casing are assembled into one; Their assembling mode is: the center line of air intake casing suction port and the center line of exhaust casing intersect in spatial vertical, and the center line of air intake casing suction port place horizontal plane is higher than the center line place horizontal plane of exhaust casing; Guiding subassembly, stator blade hold cylinder and are installed in the air intake casing, and the main body of rotor is installed in air intake casing and the exhaust casing, the central lines of guiding subassembly and centre of rotor line and exhaust casing.
The TRT of said structure, its aerodynamic arrangement are the horizontal air inlet of side direction, axial horizontal exhaust, and coal gas gets into TRT from TRT main frame split upper side to level through piping, the axially level discharge of acting back of expanding.Adopt this mode of structure, gas inlet, exhaust duct all are arranged horizontally, and the absolute altitude of air inlet gas pipe line and exhaust gas pipe line all can be higher than installs plane on the basic platform, and coal gas inlet and outlet pipeline does not take the unit bottom space.
The said side direction air inlet of the utility model axial exhaust TRT, its air intake casing is designed to the spiral case form, becomes round pipe in the suction port side of being provided with of air intake casing, and the round mouth end that said side becomes round pipe is connected with the air inlet gas pipe line.
The said side direction air inlet of the utility model axial exhaust TRT, the airflow outlet end of its exhaust casing is provided with exhaust pipe, and the assemblying body of exhaust casing and exhaust pipe is the truncated cone cylindrical shell along the discharge directions enlarged, and said exhaust pipe is connected with the exhaust gas pipe line.
The said side direction air inlet of the utility model axial exhaust TRT; Its guiding subassembly is made up of water conservancy diversion basin, guide vane and internal support ring; Said internal support ring is positioned at the inner chamber of water conservancy diversion basin; And the central lines of its center line and water conservancy diversion basin, said guide vane are at least four, the annular space that each guide vane is spacedly distributed and is surrounded at water conservancy diversion basin inwall and internal support ring outer wall; One side of each guide vane respectively with the welding of the inwall of water conservancy diversion basin, the opposite side of each guide vane respectively with the outer wall welding of internal support ring.
In the above-mentioned guiding subassembly, the inlet end of water conservancy diversion basin is the cambered surface horn mouth.
The utlity model has following beneficial effect:
1, effectively reduced energy loss
Because aerodynamic arrangement is the horizontal air inlet of side direction, axial horizontal exhaust, make coal gas flow to acting forward and backward be horizontal flow to, effectively reduced conventional TRT unit and flowed to the energy loss that turns to that turns to existence because of coal gas.
2, engineering cost reduces
Air intake casing adopts the spiral case form, its mainly act on be with the lateral airflow steering shaft to, air intake casing adopts the split upper side to horizontal intake method; Exhaust casing adopts and the horizontal exhaust mode of rotor coaxial line; Intake and exhaust pipeline absolute altitude all is higher than installs plane on the basic platform, and coal gas inlet and outlet pipeline does not take the unit bottom space, and unit is installed basic platform can be positioned at ground; The TRT factory building height reduces, and TRT civil works cost is effectively reduced.
3, structure is compact more
Air intake casing and exhaust casing are assembled into one, and main member is installed in air intake casing and the exhaust casing, thereby compare with conventional TRT unit, and structure is compact more.
4, easier for installation
One side is set between the suction port of air intake casing and air inlet gas pipe line becomes round pipe; Between exhaust casing and exhaust gas pipe line, exhaust pipe is set; Make the air inlet gas pipe line directly become round pipe with the side and be connected, exhaust gas pipe line directly exhaust pipe connects, thereby easier for installation.
5, versatility and interchangeability are good
The blade path part of the said side direction air inlet of the utility model axial exhaust TRT, stator blade are regulated partly identical with conventional TRT unit, thereby have guaranteed the versatility and the interchangeability of unit component.
Description of drawings
Fig. 1 is the profile schematic representation of the said side direction air inlet of the utility model axial exhaust TRT;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the structural representation of the said side direction air inlet of the utility model axial exhaust TRT;
Fig. 4 is the structural representation of guiding subassembly among the said side direction air inlet of the utility model axial exhaust TRT;
Fig. 5 is the left view of Fig. 4.
Among the figure, 1-air inlet side becomes round pipe, 2-air intake casing, 3-exhaust casing, 4-exhaust pipe, 5-exhaust gas pipe line, 6-air inlet gas pipe line, 7-and props up thrust bearing, 8-base, 9-seal arrangement, 10-guiding subassembly, 11-rotor, 12-stator blade and hold cylinder, 13-movable vane, 14-stator blade, 15-block bearing, 16-water conservancy diversion basin, 17-guide vane, 18-internal support ring.
Embodiment
Be described further below in conjunction with the structure and the working principle of accompanying drawing the said side direction air inlet of the utility model axial exhaust TRT.
In the present embodiment; Profile, structure such as Fig. 1, Fig. 2, shown in Figure 3 of side direction air inlet axial exhaust TRT comprise air intake casing 2, exhaust casing 3, guiding subassembly 10, rotor 11, are installed in epitrochanterian movable vane 13, stator blade holds cylinder 12, is installed in the base 8 that stator blade holds the stator blade 14 on the cylinder 12 and supports each member; Air intake casing 2 is the spiral case form; Exhaust casing 3 is the truncated cone cylindrical shell; Air intake casing 2 is assembled into one with exhaust casing 3; Their assembling mode is: the center line of air intake casing 2 suction ports and the center line of exhaust casing 3 intersect in spatial vertical, and the center line of air intake casing 2 suction ports place horizontal plane is higher than the center line place horizontal plane of exhaust casing 3; The suction port side of being provided with at air intake casing 2 becomes round pipe 1, and the round mouth end that said side becomes round pipe is connected with air inlet gas pipe line 6; Airflow outlet end at exhaust casing is provided with exhaust pipe 4, and the assemblying body of exhaust casing 3 and exhaust pipe 4 is the truncated cone cylindrical shell along the discharge directions enlarged, and said exhaust pipe 4 is connected with exhaust gas pipe line 5; Thrust bearing 7 is installed in the outside of air intake casing 2, and block bearing 15 is installed in exhaust casing 3 inside, and the rotor 11 that movable vane 13 is installed is supported on thrust bearing 7 and the block bearing 15; Guiding subassembly 10, the stator blade that stator blade 14 is installed hold cylinder 12 and are positioned at air intake casing 2, and its center line overlaps with the centre of rotor line; Jointing place at rotor 11 and air intake casing 2 and exhaust casing 3 is separately installed with black box 9, and prevents gas leakage through the mode of nitrogen shutoff; The above-mentioned member that fits together is installed and is connected on the base 8.
In the present embodiment, the structure of guiding subassembly 10 such as Fig. 4, shown in Figure 5 are made up of water conservancy diversion basin 16, guide vane 17 and internal support ring 18.Water conservancy diversion basin 16 is a cylindrical body, and its inlet end is the cambered surface horn mouth, and its outlet side is provided with the flange that usefulness is installed; Internal support ring 3 is circular, is positioned at the inner chamber of water conservancy diversion basin 16, and the central lines of its center line and water conservancy diversion basin 16; Guide vane 17 is six; The annular space that each guide vane is spacedly distributed and is surrounded at water conservancy diversion basin 16 inwalls and internal support ring 17 outer walls; One side of each guide vane respectively with the welding of the inwall of water conservancy diversion basin; The opposite side of each guide vane respectively with the welding of the outer wall of internal support ring, thereby make water conservancy diversion basin, guide vane and internal support ring become as a whole.As can beappreciated from fig. 5, before air-flow gets into said air inlet guiding subassembly, and rotor 11 angle between axially is 30 °～35 °, and after air-flow flows out said air inlet guiding subassembly, and the angle β of rotor 11 between axially is about 7 °.
The working principle of said side direction air inlet axial exhaust TRT: the blast furnace gas with certain pressure and temperature becomes round pipe 1 horizontal side to getting into air intake casing 2 through the side; Is axial flow with guiding subassembly 10 with the air-flow rectification through air intake casing 2; Air-flow gets into stator blade and holds cylinder 12; Speed and direction through stator blade 14 adjusting air-flows; Air-flow is directed to rotor 11 rotated, through rotor 11 with the energy transfer that reclaims to driven equipment, drive generator for electricity generation or directly drive other equipment.Gas pressure and temperature after the driving rotor rotation reduce, and insert steel mill's low-pressure gas pipe networks through axial horizontally disposed exhaust casing 3 and exhaust pipe 4.
Claims (7)
1. side direction air inlet axial exhaust TRT; Comprise air intake casing (2), exhaust casing (3), guiding subassembly (10), rotor (11), be installed in epitrochanterian movable vane (13), stator blade holds cylinder (12), be installed in stator blade holds stator blade (14) and the base (8) of each member of supporting on the cylinder (12); It is characterized in that air intake casing (2) and exhaust casing (3) are assembled into one; Their assembling mode is: the center line of air intake casing (2) suction port and the center line of exhaust casing (3) intersect in spatial vertical, and the center line of air intake casing (2) suction port place horizontal plane is higher than the center line place horizontal plane of exhaust casing (3); Guiding subassembly (10), stator blade hold cylinder (12) and are installed in the air intake casing (2), and the main body of rotor (11) is installed in air intake casing and the exhaust casing, guiding subassembly (10) and the center line of rotor (11) and the central lines of exhaust casing.
2. according to the said side direction air inlet of claim 1 axial exhaust TRT, it is characterized in that air intake casing (2) is the spiral case form, become round pipe (1) in the suction port side of being provided with of air intake casing (2), the round mouth end that said side becomes round pipe is connected with air inlet gas pipe line (6).
3. according to claim 1 or 2 said side direction air inlet axial exhaust TRT; The airflow outlet end that it is characterized in that exhaust casing (3) is provided with exhaust pipe (4); The assemblying body of exhaust casing (3) and exhaust pipe (4) is the truncated cone cylindrical shell along the discharge directions enlarged, and said exhaust pipe (4) is connected with exhaust gas pipe line (5).
4. according to claim 1 or 2 said side direction air inlet axial exhaust TRT; It is characterized in that guiding subassembly (10) is made up of water conservancy diversion basin (16), guide vane (17) and internal support ring (18); Said internal support ring (18) is positioned at the inner chamber of water conservancy diversion basin (16); And the central lines of its center line and water conservancy diversion basin (16), said guide vane (17) is at least four, and each guide vane is spacedly distributed at water conservancy diversion basin (16) inwall and internal support ring (17) annular space that outer wall surrounded; One side of each guide vane respectively with the welding of the inwall of water conservancy diversion basin, the opposite side of each guide vane respectively with the outer wall welding of internal support ring.
5. according to the said side direction air inlet of claim 3 axial exhaust TRT; It is characterized in that guiding subassembly (10) is made up of water conservancy diversion basin (16), guide vane (17) and internal support ring (18); Said internal support ring (18) is positioned at the inner chamber of water conservancy diversion basin (16); And the central lines of its center line and water conservancy diversion basin (16), said guide vane (17) is at least four, and each guide vane is spacedly distributed at water conservancy diversion basin (16) inwall and internal support ring (17) annular space that outer wall surrounded; One side of each guide vane respectively with the welding of the inwall of water conservancy diversion basin, the opposite side of each guide vane respectively with the outer wall welding of internal support ring.
6. according to the said side direction air inlet of claim 4 axial exhaust TRT, the inlet end that it is characterized in that water conservancy diversion basin (16) is the cambered surface horn mouth.
7. according to the said side direction air inlet of claim 5 axial exhaust TRT, the inlet end that it is characterized in that water conservancy diversion basin (16) is the cambered surface horn mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205534581U CN202402080U (en) | 2011-12-27 | 2011-12-27 | Blast furnace top gas recovery turbine unit (TRT) capable of feeding gas laterally and exhausting gas axially |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205534581U CN202402080U (en) | 2011-12-27 | 2011-12-27 | Blast furnace top gas recovery turbine unit (TRT) capable of feeding gas laterally and exhausting gas axially |
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| Publication Number | Publication Date |
|---|---|
| CN202402080U true CN202402080U (en) | 2012-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205534581U Expired - Lifetime CN202402080U (en) | 2011-12-27 | 2011-12-27 | Blast furnace top gas recovery turbine unit (TRT) capable of feeding gas laterally and exhausting gas axially |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202402080U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397247A (en) * | 2018-04-09 | 2018-08-14 | 江苏金通灵流体机械科技股份有限公司 | A kind of coaxial resuperheat axial exhaust type steam turbine of ready-package high speed |
-
2011
- 2011-12-27 CN CN2011205534581U patent/CN202402080U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397247A (en) * | 2018-04-09 | 2018-08-14 | 江苏金通灵流体机械科技股份有限公司 | A kind of coaxial resuperheat axial exhaust type steam turbine of ready-package high speed |
| CN108397247B (en) * | 2018-04-09 | 2024-04-12 | 金通灵科技集团股份有限公司 | Quick-assembly high-speed coaxial intermediate reheat axial exhaust steam turbine |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120829 |
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| CX01 | Expiry of patent term |