CN207634118U - A kind of 630 DEG C of double reheat 660MW steam turbines of ultra supercritical - Google Patents
A kind of 630 DEG C of double reheat 660MW steam turbines of ultra supercritical Download PDFInfo
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- CN207634118U CN207634118U CN201721890974.7U CN201721890974U CN207634118U CN 207634118 U CN207634118 U CN 207634118U CN 201721890974 U CN201721890974 U CN 201721890974U CN 207634118 U CN207634118 U CN 207634118U
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Abstract
A kind of 630 DEG C of double reheat 660MW steam turbines of ultra supercritical, are related to a kind of double reheat 660MW steam turbines.The utility model is low in order to solve the problems, such as the problem of current ultra supercritical 660MW grade thermal power steam turbine group steam inlet conditions need to be improved and efficiency.It is respectively arranged first bearing case and second bearing case before and after the ultra-high pressure cylinder of the utility model, passes through the beam push-pull mechanism connection that centers between ultra-high pressure cylinder and first bearing case and second bearing case；It is respectively arranged second bearing case and 3rd bearing case before and after high pressure cylinder, passes through the beam push-pull mechanism connection that centers between high pressure cylinder and second bearing case and 3rd bearing case；It is respectively arranged 3rd bearing case and fourth bearing case before and after intermediate pressure cylinder, passes through the beam push-pull mechanism connection that centers between intermediate pressure cylinder and 3rd bearing case and fourth bearing case；It is respectively arranged fourth bearing case and 5th bearing case before and after first low pressure (LP) cylinder, five bearing housings and 6th bearing case are respectively arranged before and after the second low pressure (LP) cylinder.The utility model is suitable for the manufacture of steam turbine.
Description
Technical field
The utility model is related to a kind of steam turbines, and in particular to double reheat 660MW steam turbines.
Background technology
Prime mover that steam turbine is converted as high temperature, high pressure, high rotating speed and large capacity energy, the high performance-price ratio of product are
The comprehensive of the technologies such as designing technique, manufacturing process and optimization of Thermal System embodies.The technology for improving cost performance is related to improving
Steam parameter, flow passage component design optimizing, structure optimization, cold end optimization, thermodynamic cycle and system optimization, advanced manufacture work
The technical fields such as skill.No matter the primary energy that generating set uses is coal-fired, nuclear energy or combustion gas, as long as using steam as energy
The working medium of conversion is measured, steam turbine undertakes the function that steam thermal energy is converted to mechanical work, thus steam turbine is to determine entire electricity
One of most important generating equipment of factory's performance.Domestic existing ultra supercritical 660MW grade thermal power steam turbine groups are joined into vapour at present
Number is≤31MPa, main steam temperature≤600 DEG C, single reheat and double reheat vapor (steam) temperature≤620 DEG C, and efficiency is low, arrangement is multiple
Miscellaneous, the problems such as market competitiveness is not strong.
Utility model content
The utility model need to be carried to solve current ultra supercritical 660MW grade thermal power steam turbine group steam inlet conditions
The low problem of high problem and efficiency.
A kind of 630 DEG C of double reheat 660MW steam turbines of ultra supercritical, including a ultra-high pressure cylinder, a high pressure cylinder, one
Intermediate pressure cylinder, the first low pressure (LP) cylinder, the second low pressure (LP) cylinder, first bearing case, second bearing case, 3rd bearing case, fourth bearing case, the 5th
Bearing housing, 6th bearing case；
Ultra-high pressure cylinder, high pressure cylinder, intermediate pressure cylinder, the first low pressure (LP) cylinder and the second low pressure (LP) cylinder are coaxially arranged；Front and back point of ultra-high pressure cylinder
Not Bu Zhi first bearing case and second bearing case, pass through the beam that centers between ultra-high pressure cylinder and first bearing case and second bearing case
Push-pull mechanism connects；It is respectively arranged second bearing case and 3rd bearing case before and after high pressure cylinder, high pressure cylinder and second bearing case and the
Pass through the beam push-pull mechanism connection that centers between three bearing housings；3rd bearing case and fourth bearing are respectively arranged before and after intermediate pressure cylinder
Case passes through the beam push-pull mechanism connection that centers between intermediate pressure cylinder and 3rd bearing case and fourth bearing case；Before and after first low pressure (LP) cylinder
It is respectively arranged fourth bearing case and 5th bearing case, five bearing housings and 6th bearing case are respectively arranged before and after the second low pressure (LP) cylinder.
Further, first low pressure (LP) cylinder and the second low pressure (LP) cylinder are all made of landing structure.
Further, a kind of 630 DEG C of double reheat 660MW steam turbines of ultra supercritical further include communicating pipe, communicating pipe
Two air intakes connect respectively with two steam drains of intermediate pressure cylinder, two ventholes of communicating pipe respectively with a low pressure (LP) cylinder and
The air intake of two low pressure (LP) cylinders connects.
Further, a kind of 630 DEG C of double reheat 660MW steam turbines of ultra supercritical further include two main vapour of super-pressure
Adjust union valve, the main vapour of two super-pressure adjusts the both sides that union valve is arranged in ultra-high pressure cylinder, respectively by flange with it is super
High pressure cylinder connects.
Further, a kind of 630 DEG C of double reheat 660MW steam turbines of ultra supercritical further include the main vapour tune of two high pressures
Union valve is saved, the main vapour of high pressure adjusts the both sides that union valve is arranged in high pressure cylinder, connect respectively with high pressure cylinder by connecting tube；
The main vapour of high pressure is adjusted between union valve and connecting tube through flanged joint, passes through flanged joint between connecting tube and high pressure cylinder.
Further, a kind of 630 DEG C of double reheat 660MW steam turbines of ultra supercritical further include that main vapour tune is pressed in two
Union valve is saved, includes and main vapour is pressed to adjust the both sides that union valve is arranged in intermediate pressure cylinder in two, respectively by welding manner in
Cylinder pressure connects.
Further, a kind of 630 DEG C of double reheat 660MW steam turbines of ultra supercritical further include barring gear, jiggering
Device is mounted on 6th bearing case.
The utility model has the advantages that：
The unit of the utility model is ultra supercritical, be a kind of resuperheat twice, single shaft, five cylinders, four steam discharge, 10 grades return
Hot, clammy condensing turbine, main steam pressure meets 35Mpa, main steam temperature meets 610 DEG C, single reheat and secondary
Reheat steam temperature meet 630 DEG C, unit capacity be 660MW grades, can further increase 660MW grade units efficiency,
Unit heat consumption is reduced, the thermal loss of steam turbine of the utility model is not higher than 7100kj/ (kwh).The utility model is super simultaneously
Critical 660MW steam turbines advanced structure, complete machine arrangement are succinct.Consider from energy-saving and environmental protection and cost of investment angle, more adapts to
The growth requirement of current domestic electrical Market and Technology.
Description of the drawings
Fig. 1 is a kind of side view of 630 DEG C of double reheat 660MW steam turbines of ultra supercritical；
Fig. 2 is a kind of vertical view of 630 DEG C of double reheat 660MW steam turbines of ultra supercritical.
Specific implementation mode
Specific implementation mode one：Embodiment is described with reference to Fig. 1,
A kind of 630 DEG C of double reheat 660MW steam turbines of ultra supercritical, including 1, high pressure cylinder 2, one of a ultra-high pressure cylinder
A intermediate pressure cylinder 3, the first low pressure (LP) cylinder 4, the second low pressure (LP) cylinder 5, first bearing case 6, second bearing case 7,3rd bearing case 8, the 4th axis
Hold case 9,5th bearing case 10,6th bearing case 11；
Ultra-high pressure cylinder 1, high pressure cylinder 2, intermediate pressure cylinder 3, the first low pressure (LP) cylinder 4 and the second low pressure (LP) cylinder 5 are coaxially arranged；Ultra-high pressure cylinder 1
It is front and back to be respectively arranged first bearing case 6 and second bearing case 7, between ultra-high pressure cylinder 1 and first bearing case 6 and second bearing case 7
Pass through the beam push-pull mechanism connection that centers；Second bearing case 7 and 3rd bearing case 8, high pressure cylinder 2 are respectively arranged before and after high pressure cylinder 2
It is connect by the beam push-pull mechanism that centers between second bearing case 7 and 3rd bearing case 8；Is respectively arranged before and after intermediate pressure cylinder 3
Three bearing housings 8 and fourth bearing case 9 pass through the beam push-and-pull that centers between intermediate pressure cylinder 3 and 3rd bearing case 8 and fourth bearing case 9
Mechanism connects；Fourth bearing case 9 and 5th bearing case 10,5 front and back difference of the second low pressure (LP) cylinder are respectively arranged before and after first low pressure (LP) cylinder 4
Arrange five bearing housings 10 and 6th bearing case 11.
Specific implementation mode two：Embodiment is described with reference to Fig. 1,
The first low pressure (LP) cylinder 4 and the second low pressure (LP) cylinder 5 are all made of landing structure described in present embodiment.
Other structures and parameter are same as the specific embodiment one.
Specific implementation mode three：Embodiment is described with reference to Fig. 1,
Steam turbine described in present embodiment further includes communicating pipe 18, two air intakes of communicating pipe 18 respectively with intermediate pressure cylinder 3
The connection of two steam drains, two ventholes of communicating pipe 18 connect with the air intake of a low pressure (LP) cylinder 4 and the second low pressure (LP) cylinder 5 respectively
It connects.
Other structures and parameter are the same as one or two specific embodiments.
Specific implementation mode four：Embodiment is described with reference to Fig. 2,
Steam turbine described in present embodiment further includes that the main vapour of two super-pressure adjusts union valve 12 and 13, two super-pressure masters
Vapour adjusts the both sides that union valve 12 and 13 is arranged in ultra-high pressure cylinder 1, is connect respectively with ultra-high pressure cylinder by flange.
Other structures and parameter are identical as one of specific implementation mode one to three.
Specific implementation mode five：Embodiment is described with reference to Fig. 2,
Steam turbine described in present embodiment further includes that the main vapour of two high pressures adjusts union valve 14 and 15, and the main vapour of high pressure adjusts connection
The both sides that valve 14 and 15 is arranged in high pressure cylinder 2 are closed, are connect respectively with high pressure cylinder 2 by connecting tube；The main vapour of high pressure adjusts connection
It closes between valve 14 and 15 and connecting tube through flanged joint, passes through flanged joint between connecting tube and high pressure cylinder 2.
Other structures and parameter are identical as one of specific implementation mode one to four.
Specific implementation mode six：Embodiment is described with reference to Fig. 2,
Steam turbine described in present embodiment further includes that main vapour is pressed to adjust union valve 16 and 17 in two, includes and presses main vapour in two
The both sides that union valve 16 and 17 is arranged in intermediate pressure cylinder 3 are adjusted, are connect respectively with intermediate pressure cylinder 3 by welding manner.
Other structures and parameter are identical as one of specific implementation mode one to five.
Specific implementation mode seven：Embodiment is described with reference to Fig. 2,
Steam turbine described in present embodiment further includes barring gear 19, and barring gear 19 is mounted on 6th bearing case 11.
Other structures and parameter are identical as one of specific implementation mode one to six.
Claims (10)
1. a kind of 630 DEG C of double reheat 660MW steam turbines of ultra supercritical, which is characterized in that including ultra-high pressure cylinder (1), one
A high pressure cylinder (2), an intermediate pressure cylinder (3), the first low pressure (LP) cylinder (4), the second low pressure (LP) cylinder (5), first bearing case (6), second bearing
Case (7), 3rd bearing case (8), fourth bearing case (9), 5th bearing case (10), 6th bearing case (11)；
Ultra-high pressure cylinder (1), high pressure cylinder (2), intermediate pressure cylinder (3), the first low pressure (LP) cylinder (4) and the second low pressure (LP) cylinder (5) are coaxially arranged；Superelevation
Cylinder pressure (1) is front and back to be respectively arranged first bearing case (6) and second bearing case (7), ultra-high pressure cylinder (1) and first bearing case (6) and
Pass through the beam push-pull mechanism connection that centers between second bearing case (7)；High pressure cylinder (2) is front and back to be respectively arranged second bearing case (7)
With 3rd bearing case (8), machine is pushed and pulled by the beam that centers between high pressure cylinder (2) and second bearing case (7) and 3rd bearing case (8)
Structure connects；Intermediate pressure cylinder (3) is front and back to be respectively arranged 3rd bearing case (8) and fourth bearing case (9), intermediate pressure cylinder (3) and 3rd bearing
Pass through the beam push-pull mechanism connection that centers between case (8) and fourth bearing case (9)；First low pressure (LP) cylinder (4) is front and back to be respectively arranged the
Four bearing housings (9) and 5th bearing case (10), the second low pressure (LP) cylinder (5) is front and back to be respectively arranged five bearing housings (10) and 6th bearing case
(11)。
2. 630 DEG C of double reheat 660MW steam turbines of a kind of ultra supercritical according to claim 1, which is characterized in that described
First low pressure (LP) cylinder (4) and the second low pressure (LP) cylinder (5) are all made of landing structure.
3. 630 DEG C of double reheat 660MW steam turbines of a kind of ultra supercritical according to claim 2, which is characterized in that described
Steam turbine further includes communicating pipe (18), and two air intakes of communicating pipe (18) are connect with two steam drains of intermediate pressure cylinder (3) respectively,
Two ventholes of communicating pipe (18) are connect with the air intake of a low pressure (LP) cylinder (4) and the second low pressure (LP) cylinder (5) respectively.
4. 630 DEG C of double reheat 660MW steam turbines of a kind of ultra supercritical according to claim 3, which is characterized in that described
Steam turbine further includes that the main vapour of two super-pressure adjusts union valve, and the main vapour of two super-pressure adjusts union valve and is arranged in super-pressure
The both sides of cylinder (1), connect with ultra-high pressure cylinder respectively.
5. 630 DEG C of double reheat 660MW steam turbines of a kind of ultra supercritical according to claim 4, which is characterized in that described
The main vapour of two super-pressure adjusts union valve and is connect respectively with ultra-high pressure cylinder by flange.
6. 630 DEG C of double reheat 660MW steam turbines of a kind of ultra supercritical according to claim 4, which is characterized in that described
Steam turbine further includes that the main vapour of two high pressures adjusts union valve, and the main vapour of high pressure adjusts union valve and is arranged in the two of high pressure cylinder (2)
Side is connect with high pressure cylinder (2) respectively.
7. 630 DEG C of double reheat 660MW steam turbines of a kind of ultra supercritical according to claim 6, which is characterized in that described
The main vapour of high pressure adjusts union valve and is connect respectively with high pressure cylinder (2) by connecting tube, and the main vapour of high pressure adjusts union valve and connect
By flanged joint between pipe, pass through flanged joint between connecting tube and high pressure cylinder (2).
8. 630 DEG C of double reheat 660MW steam turbines of a kind of ultra supercritical according to claim 6, which is characterized in that described
Steam turbine further includes that main vapour is pressed to adjust union valve in two, includes and main vapour adjusting union valve is pressed to be arranged in intermediate pressure cylinder in two
(3) both sides are connect with intermediate pressure cylinder (3) respectively.
9. 630 DEG C of double reheat 660MW steam turbines of a kind of ultra supercritical according to claim 8, which is characterized in that described
The middle main vapour of pressure adjusts union valve and is connect respectively with intermediate pressure cylinder (3) by welding manner.
10. 630 DEG C of double reheat 660MW steam turbines of a kind of ultra supercritical according to one of claim 1 to 9, feature
It is, the steam turbine further includes barring gear (19), and barring gear (19) is mounted on 6th bearing case (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721890974.7U CN207634118U (en) | 2017-12-28 | 2017-12-28 | A kind of 630 DEG C of double reheat 660MW steam turbines of ultra supercritical |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721890974.7U CN207634118U (en) | 2017-12-28 | 2017-12-28 | A kind of 630 DEG C of double reheat 660MW steam turbines of ultra supercritical |
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| Publication Number | Publication Date |
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| CN207634118U true CN207634118U (en) | 2018-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721890974.7U Active CN207634118U (en) | 2017-12-28 | 2017-12-28 | A kind of 630 DEG C of double reheat 660MW steam turbines of ultra supercritical |
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| CN (1) | CN207634118U (en) |
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- 2017-12-28 CN CN201721890974.7U patent/CN207634118U/en active Active
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