CN205315057U - Cogeneration black soy sauce steam turbine - Google Patents
Cogeneration black soy sauce steam turbine Download PDFInfo
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- CN205315057U CN205315057U CN201521039317.2U CN201521039317U CN205315057U CN 205315057 U CN205315057 U CN 205315057U CN 201521039317 U CN201521039317 U CN 201521039317U CN 205315057 U CN205315057 U CN 205315057U
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Abstract
The utility model provides a cogeneration black soy sauce steam turbine, include along main steam condition by height to the low high pressure cylinder that distributes in proper order, first intermediate pressure cylinder, second intermediate pressure cylinder and low pressure jar, the steam drain of first intermediate pressure cylinder is connected with the female pipe of first middling pressure steam extraction, the end connection of the female pipe of this first middling pressure steam extraction has the female pipe of a regulated extraction steam pipeline and the admission of second middling pressure, the tip of the female pipe of second middling pressure admission still is connected with the first middling pressure admission that is connected with the steam inlet of second intermediate pressure cylinder and is in charge of, the steam drain of second intermediate pressure cylinder is connected with the female pipe of second middling pressure steam extraction, the low pressure admission pipeline that the end connection of the female pipe of this second middling pressure steam extraction has the the second adjustment extraction line and is connected with the steam inlet of low pressure jar. This application realizes two pressure rating's black soy sauce through addding intermediate pressure cylinder, valve and pipeline to satisfy two regulated extraction steam demands of large capacity high parameter, and guarantee that the steam turbine still accords with the requirement of high -efficient design and operation under pure operating mode with fixed attention. (B /)
Description
Technical field
This utility model relates to a kind of steam turbine, particularly relates to a kind of cogeneration double-extract steam turbine.
Background technology
Cogeneration turbine generating set refers to that steam turbine drive electrical generators is extracted a part of steam out at the flow passing position place that steam turbine is suitable again while carrying electric energy to electrical network and entered heat supply network heat supply, another part steam continues expansion work in turbine runner, drive the rotor of output shaft axle acting of steam turbine, with this thermal efficiency being greatly improved steamer and performance driving economy. Cogeneration turbine mainly has several forms such as back pressure type, steam extraction and condensing formula, back pressure extraction; Cogeneration double-extract steam turbine refers to that cogeneration turbine provides drawing gas of two pressure ratings respectively, for heat supply.
At present, conventional cogeneration double-extract steam turbine adopts and arranges rotating barrier in intermediate pressure cylinder or the draw gas adjustment of relatively high parameter of seat cylinder valve is drawn gas, the adjustment extracting relatively low parameter at the steam discharge place of intermediate pressure cylinder is drawn gas, and it draws gas valve and pipe arrangement as shown in Figure 1. as can be seen from Figure 1: conventional cogeneration double-extract steam turbine includes the high pressure cylinder 1 being arranged in order from high to low by steam inlet condition, intermediate pressure cylinder 2 and low pressure (LP) cylinder 3, the air intake place of high pressure cylinder 1 is connected to high-pressure admission pipeline, it is pressed into steam pipe road in being connected between steam drain and the air intake of intermediate pressure cylinder 2 of high pressure cylinder 1, it is connected to low pressure admission pipeline between steam drain and the air intake of low pressure (LP) cylinder 3 of intermediate pressure cylinder 2, described high-pressure admission pipeline is disposed with high pressure main valve TV and governor valve door GV along entering vapour direction, medium pressure steam inlet pipe road is disposed with middle pressure main valve RSV and middle pressure and adjusts valve IV along entering vapour direction, described low pressure admission pipeline is communicated with pipe pressure and regulates valve LCV, being provided with rotating barrier ICV in intermediate pressure cylinder 2, intermediate pressure cylinder 2 presses adjustment extraction line in rotating barrier ICV place is connected to, and in this, pressure adjusts and is provided with middle pressure extraction pressure adjustment valve IEV on extraction line, the steam drain place of intermediate pressure cylinder 2 is also associated with low pressure and adjusts extraction line, and this low pressure adjusts and is provided with low-pressure pumping steam pressure-regulating valve LEV on extraction line.When steam turbine operates under operating mode of drawing gas, enter the steam of intermediate pressure cylinder 2 by before middle pressure after what, a part of steam is through-flow through the controllable rotating barrier ICV middle pressure entered below, and during another part steam passes through, pressure extraction pressure regulates pressure steam bleeding system during valve IEV enters; A steam discharge part for intermediate pressure cylinder 2 enters low pressure (LP) cylinder 3 after controllable communicating pipe pressure-regulating valve LCV, and another part enters low-pressure pumping steam system through low-pressure pumping steam pressure-regulating valve LEV. Therefore, in this cogeneration double-extract steam turbine, medium pressure adjusts extraction line and low pressure adjusts extraction line and defines the black soy sauce of cogeneration turbine.
But, there is following defect in above-mentioned cogeneration double-extract steam turbine: owing to it arranges adjustment vapor extraction device (i.e. rotating barrier or seat cylinder valve) between the flow passage component of intermediate pressure cylinder, therefore which reduce the work efficiency under the design efficiency, particularly steam turbine pure condensate operating mode of intermediate pressure cylinder; Additionally, unit for high-power grade, restriction due to this body structure of unit and intensity aspect, it brings very big difficulty and restriction to the draw gas design of mechanism of intermediate pressure section adjustment, therefore arranges adjustment vapor extraction device in intermediate pressure cylinder and also can bring restriction and potential safety hazard in a series of operation to unit.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is in that providing a kind of disclosure satisfy that the double; two of Large Copacity high parameter adjust demand of drawing gas and have the cogeneration double-extract steam turbine of higher operational efficiency and reliability.
For achieving the above object, this utility model provides a kind of cogeneration double-extract steam turbine, including the high pressure cylinder being sequentially distributed from high to low along steam inlet condition, first intermediate pressure cylinder, second intermediate pressure cylinder and low pressure (LP) cylinder, it is connected in first between steam drain and the air intake of the first intermediate pressure cylinder of described high pressure cylinder and is pressed into vapour mother pipe, the steam drain of described first intermediate pressure cylinder is connected in first pressure vapour mother pipe, this is connected in the first adjustment extraction line and second and is pressed into vapour mother pipe in end of pressure vapour mother's pipe in first, be pressed in described second that the end of vapour mother's pipe is also associated with being connected with the air intake of the second intermediate pressure cylinder first is pressed into vapour be in charge of, the steam drain of described second intermediate pressure cylinder is connected in second pressure vapour mother pipe, this is connected to the second adjustment extraction line and the low pressure admission pipeline being connected with the air intake of low pressure (LP) cylinder in end of pressure vapour mother's pipe in second.
Further, being pressed into vapour mother's pipe and be provided with the first control valve group in described second, first adjusts extraction line is provided with the first gas pressure transducer along direction successively distribution of drawing gas and the second control valve group; Described low pressure admission pipeline is provided with the 3rd control valve group, and the second gas pressure transducer and the 4th that the second adjustment extraction line is provided with along direction successively distribution of drawing gas controls valve group.
Preferably, being pressed into vapour and be in charge of the 3rd gas pressure transducer being additionally provided with for detecting the second intermediate pressure cylinder air intake pressure in described first, enter vapour direction along the second intermediate pressure cylinder, described 3rd gas pressure transducer is positioned at the rear of the first control valve group; Being additionally provided with the 4th gas pressure transducer for detecting LP steam admission pressure on described low pressure admission pipeline, enter vapour direction along low pressure (LP) cylinder, described 4th gas pressure transducer is positioned at the rear of the 3rd control valve group.
Further, also include a mesolow cylinder, be pressed in described second that the end of vapour mother's pipe is also associated with being connected with the air intake of mesolow cylinder second is pressed into vapour be in charge of, being pressed into vapour in described second to be in charge of the 5th of the vapour direction successively distribution successively of entering being provided with along mesolow cylinder and control valve group and the 5th gas pressure transducer, described 5th gas pressure transducer is for detecting the air intake pressure of mesolow cylinder.
Preferably, the first rotor is arranged and constituted to the rotor of described high pressure cylinder, the rotor of the first intermediate pressure cylinder, the rotor of the second intermediate pressure cylinder and the rotor single shaft of low pressure (LP) cylinder, and the rotor of mesolow cylinder constitutes the second rotor, described the first rotor and the second rotor and is rigidly connected.
Preferably, the rotor of described high pressure cylinder, the rotor of the first intermediate pressure cylinder, the rotor of the second intermediate pressure cylinder and the rotor single shaft of low pressure (LP) cylinder are arranged and constitute the first rotor, the rotor of mesolow cylinder is constituted the second rotor, described the first rotor and the second rotor split axle and arranges or be connected by motor synchronizing clutch.
Further, described first intermediate pressure cylinder and the second intermediate pressure cylinder are for closing cylinder reflux structure.
As it has been described above, the cogeneration double-extract steam turbine that this utility model relates to, have the advantages that
This cogeneration double-extract steam turbine is on the architecture basics of original steam turbine, by setting up intermediate pressure cylinder and setting up valve between intermediate pressure cylinder and low pressure (LP) cylinder and pipeline realizes the black soy sauce of two pressure ratings, thus meeting the double; two of Large Copacity high parameter to adjust demand of drawing gas, and it does not change the general structure of original steam turbine, thus not by the restriction of original steam turbine self structure and intensity aspect, also ensure that steam turbine still conforms to the requirement of efficient design and operation under pure condensate operating mode, ensures the safe operation of steam turbine simultaneously.
Accompanying drawing explanation
Fig. 1 is the steam bleeding system schematic diagram of cogeneration double-extract steam turbine in prior art.
Fig. 2 is the steam bleeding system schematic diagram of cogeneration double-extract steam turbine in this utility model.
Fig. 3 is another embodiment of Fig. 2.
Element numbers explanation
1 high pressure cylinder
2 intermediate pressure cylinders
3 low pressure (LP) cylinders
4 first intermediate pressure cylinders
5 second intermediate pressure cylinders
6 mesolow cylinders
7 bindiny mechanisms
Vapour mother pipe it is pressed in 8 first
Pressure vapour mother pipe in 9 first
10 first adjust extraction line
It is pressed into vapour in 11 first to be in charge of
Vapour mother pipe it is pressed in 12 second
Pressure vapour mother pipe in 13 second
14 second adjust extraction line
15 low pressure admission pipelines
It is pressed into vapour in 16 second to be in charge of
17 first control valve group
18 second control valve group
19 the 3rd control valve group
20 the 4th control valve group
21 the 5th control valve group
22 first gas pressure transducers
23 second gas pressure transducers
24 the 3rd gas pressure transducers
25 the 4th gas pressure transducers
26 the 5th gas pressure transducers
27 first electromotors
28 second electromotors
Detailed description of the invention
By particular specific embodiment, embodiment of the present utility model being described below, those skilled in the art the content disclosed by this specification can understand other advantages of the present utility model and effect easily.
Notice, the structure of this specification institute accompanying drawings depicted, ratio, size etc., all only in order to coordinate the disclosed content of description, understand for those skilled in the art and read, it is not limited to the enforceable qualifications of this utility model, therefore do not have technical essential meaning, the adjustment of the modification of any structure, the change of proportionate relationship or size, under not affecting effect that this utility model can be generated by and the purpose that can reach, all should still drop on the disclosed technology contents of this utility model and obtain in the scope that can contain. Simultaneously, in this specification cited as " on ", D score, "left", "right", " centre " and " one " etc. term, it is merely convenient to understanding of narration, and it is not used to limit the enforceable scope of this utility model, the change of its relativeness or adjustment, changing under technology contents without essence, when being also considered as the enforceable category of this utility model.
This utility model provides a kind of cogeneration double-extract steam turbine, as shown in Figure 2, this cogeneration double-extract steam turbine includes the high pressure cylinder 1 being sequentially distributed from high to low along steam inlet condition, first intermediate pressure cylinder 4, second intermediate pressure cylinder 5 and low pressure (LP) cylinder 3, the air intake of described high pressure cylinder 1 is connected with boiler by high-pressure admission pipeline, it is connected in first and is pressed into vapour mother's pipe 8 between steam drain and the air intake of the first intermediate pressure cylinder 4 of described high pressure cylinder 1, the steam drain of described first intermediate pressure cylinder 4 is connected in first pressure vapour mother's pipe 9, this is connected in the first adjustment extraction line 10 and second and is pressed into vapour mother's pipe 12 in end of pressure vapour mother's pipe 9 in first, be pressed in described second that the end of vapour mother's pipe 12 is also associated with being connected with the air intake of the second intermediate pressure cylinder 5 first is pressed into vapour and is in charge of 11, the steam drain of described second intermediate pressure cylinder 5 is connected in second pressure vapour mother's pipe 13, this low pressure admission pipeline 15 that end of pressure vapour mother's pipe 13 is connected to the second adjustment extraction line 14 and the air intake with low pressure (LP) cylinder 3 is connected in second.Preferably, in the cogeneration double-extract steam turbine shown in Fig. 2, being pressed in vapour mother's pipe 12 and first to be pressed into vapour in described second, to be in charge of 11 be a pipeline.
In above-mentioned cogeneration double-extract steam turbine, the rotor of described high pressure cylinder 1, the rotor of the first intermediate pressure cylinder 4, the rotor of the second intermediate pressure cylinder 5 and the rotor single shaft of low pressure (LP) cylinder 3 are arranged and are sequentially connected with, namely the rotor of high pressure cylinder 1, the rotor of the first intermediate pressure cylinder 4, the rotor of the second intermediate pressure cylinder 5 and the rotor of low pressure (LP) cylinder 3 share a roots rotor axle, thus constituting the first rotor, outfan and first electromotor 27 of this first rotor are connected. Cogeneration double-extract steam turbine mainly has two kinds of operating conditions, respectively pure condensate operating mode and operating mode of drawing gas. When steam turbine is run under pure condensate operating mode, described first adjustment extraction line 10 and the second adjustment extraction line 14 are turned off; Now, steam is expansion work in steam turbine, drives the first rotor to rotate, and the heat energy of steam is completely converted into the mechanical energy of the first rotor, drives the first electromotor 27 to generate electricity; Under pure condensate operating mode, the electrical power that steam turbine sends is maximum. When steam turbine is run under operating mode of drawing gas, described first adjustment extraction line 10 and the second adjustment extraction line 14 are all opened, first adjusts the middle pressure that extraction line 10 is steam turbine draws gas, second adjustment extraction line 14 is the low-pressure pumping steam of steam turbine, therefore the first adjustment extraction line 10 and second adjusts the black soy sauce that extraction line 14 constitutes two different pressures grades of cogeneration turbine; Now, steam is expansion work in steam turbine, and a part of steam rotor driven rotates, transfer the mechanical energy of rotor to, for driving the first electromotor 27, another part steam adjusts extraction line 10 and second from first and adjusts extraction line 14 extraction, for user's heat supply. Therefore, this steam turbine achieves cogeneration, thus being greatly improved the economy that steam-turbine unit runs.
Additionally, the application is on the architecture basics of original steam turbine, by setting up an intermediate pressure cylinder, and set up valve between intermediate pressure cylinder and low pressure (LP) cylinder and pipeline realizes the black soy sauce of two pressure ratings at two, thus meeting double, two demands adjusting draw gas demand and low cost of Large Copacity high parameter, and it does not change the general structure of original steam turbine, thus not by the restriction of original steam turbine self structure and intensity aspect, the impact on steam turbine pure condensate operating mode can also be greatly reduced, to ensure that steam turbine still conforms to the requirement of efficient design and operation under pure condensate operating mode, ensure the safe operation of steam turbine.
Further, as shown in Figure 2, it is pressed into vapour mother's pipe 12 in described second and is provided with the first control valve group 17, the first gas pressure transducer 22 and second that first adjustment extraction line 10 is provided with along direction successively distribution of drawing gas controls valve group 18, and described first gas pressure transducer 22 is used for the steam pressure before detecting the second control valve group 18; Described low pressure admission pipeline 15 is provided with the 3rd control valve group 19, the second gas pressure transducer 23 and the 4th that second adjustment extraction line 14 is provided with along direction successively distribution of drawing gas controls valve group 20, and described second gas pressure transducer 23 is used for the steam pressure before detecting the 4th control valve group 20. Preferably, it is pressed into vapour in described first to be in charge of on 11 and be additionally provided with the 3rd gas pressure transducer 24 for detecting the second intermediate pressure cylinder 5 air intake pressure, entering vapour direction along the second intermediate pressure cylinder 5, described 3rd gas pressure transducer 24 is positioned at the rear of the first control valve group 17;Being additionally provided with the 4th gas pressure transducer 25 for detecting low pressure (LP) cylinder 3 air intake pressure on described low pressure admission pipeline 15, enter vapour direction along low pressure (LP) cylinder 3, described 4th gas pressure transducer 25 is positioned at the rear of the 3rd control valve group 19.
When the first adjustment extraction line 10 comes into operation, control the aperture of the first control valve group 17, with control second control valve group 18 before steam pressure, when the first gas pressure transducer 22 detects that the steam pressure before the second control valve group 18 meets the requirement that the first adjustment is drawn gas, then the second control valve group 18 is opened, and regulates its aperture to control the flow of the first adjustment extraction line 10; Meanwhile, monitored the air intake steam pressure of the second intermediate pressure cylinder 5 by the 3rd gas pressure transducer 24, to characterize the inlet flow rate of the second intermediate pressure cylinder 5.
When the second adjustment extraction line 14 comes into operation, control the aperture of the 3rd control valve group 19, with control the 4th control valve group 20 before steam pressure, when the second gas pressure transducer 23 detects that the steam pressure before the 4th control valve group 20 meets the requirement that the second adjustment is drawn gas, then the 4th control valve group 20 is opened, and regulates its aperture to control the flow of the second adjustment extraction line 14; Meanwhile, monitored the air intake steam pressure of low pressure (LP) cylinder 3 by the 4th gas pressure transducer 25, to characterize the inlet flow rate of low pressure (LP) cylinder 3.
Further, the cogeneration double-extract steam turbine that the application relates to can also set up a mesolow cylinder 6, now, turbine system structure is as shown in Figure 3, be pressed in described second that the end of vapour mother's pipe 12 is also associated with being connected with the air intake of mesolow cylinder 6 second is pressed into vapour and is in charge of 16, it is pressed into vapour in described second to be in charge of 16 the 5th of the vapour direction successively distributions successively of entering being provided with along mesolow cylinder 6 and control valve group 21 and the 5th gas pressure transducer 26, described 5th gas pressure transducer 26 is for detecting the air intake pressure of mesolow cylinder 6, to characterize the inlet flow rate of mesolow cylinder 6. can further improve the economical operation of unit by setting up a mesolow cylinder 6 in steam-turbine unit, adapt to the change of thermic load, improve steam utilization, reduce energy waste.
The rotor of described mesolow cylinder 6 is the second rotor, and when setting up mesolow cylinder 6, the second rotor can pass through bindiny mechanism 7 with the first rotor and be connected. In the present embodiment, there are three kinds of forms in bindiny mechanism 7: 1, be rigidly connected; 2, the structure disconnected, namely split axle is not connected to; 3, motor synchronizing clutch, it may be achieved online off-the-line and synchronization between the first rotor and the second rotor. Specifically, when the first rotor and the second rotor are rigidly connected, the first rotor and the second rotor share a roots rotor axle, and the first electromotor 27 is connected to the end of this armature spindle, mechanical energy and the bitrochanteric mechanical energy of the first rotor all drive the first electromotor 27, thus powering for electrical network. In rigidly connected situation, the steam discharge of the first intermediate pressure cylinder 4 should preferentially meet the design discharge (i.e. minimum throttle flow) of mesolow cylinder 6; Afterwards, the steam discharge of the first intermediate pressure cylinder 4 meets the middle pressure amount of the drawing gas demand of the first adjustment extraction line 10 again.
When the first rotor and the second rotor split axle are arranged, the first rotor and the second rotor are respectively with two roots rotor axles, the armature spindle end of the first rotor connects the first electromotor 27, bitrochanteric armature spindle end connects the second motor, therefore the mechanical energy of the first rotor drives the first electromotor 27, bitrochanteric mechanical energy drives the second electromotor 28, and the first electromotor 27 and the second electromotor 28 are powered for electrical network jointly.When disconnecting, the steam discharge of the first intermediate pressure cylinder 4 should preferentially meet the middle pressure amount of the drawing gas demand of the first adjustment extraction line 10, in the middle of the pressure amount of drawing gas demand more than the design discharge of mesolow cylinder 6 time, valve group 21 can be controlled by the 5th and close, mesolow cylinder 6 disengages; In the middle of the pressure amount of drawing gas demand less than the design discharge of mesolow cylinder 6 time, valve group 21 can be controlled by the 5th to reopen, mesolow cylinder 6 re-synchronization runs, thus steam-turbine unit performance driving economy under operating mode of drawing gas can be improved, keeps low pressure (LP) cylinder 3 to have higher efficiency.
When the first rotor and the second rotor are connected by motor synchronizing clutch, motor synchronizing clutch can realize the armature spindle of the first rotor and the online off-the-line of bitrochanteric armature spindle or synchronization, and the outfan of steam-turbine unit only connects the first electromotor 27. The steam discharge of the first intermediate pressure cylinder 4 is still the preferential middle pressure amount of the drawing gas demand meeting the first adjustment extraction line 10, in the middle of the pressure amount of drawing gas demand more than the design discharge of mesolow cylinder 6 time, valve group 21 can be controlled by the 5th to close, motor synchronizing clutch makes armature spindle and the online off-the-line of bitrochanteric armature spindle of the first rotor simultaneously, so that mesolow cylinder 6 disengages; In the middle of the pressure amount of drawing gas demand less than the design discharge of mesolow cylinder 6 time, valve group 21 can be controlled by the 5th to reopen, motor synchronizing clutch makes the armature spindle of the first rotor and bitrochanteric armature spindle synchronize simultaneously, so that mesolow cylinder 6 re-synchronization runs, and then improve steam-turbine unit performance driving economy under operating mode of drawing gas, keeping low pressure (LP) cylinder 3 to have higher efficiency, mechanical energy and the bitrochanteric mechanical energy of the first rotor all drive the first electromotor 27, power for electrical network.
Further, described first intermediate pressure cylinder 4 and the second intermediate pressure cylinder 5 are for closing cylinder reflux structure, namely the cylinder body of the first intermediate pressure cylinder 4 and the cylinder body of the second intermediate pressure cylinder 5 are structure as a whole, first intermediate pressure cylinder 4 and the second intermediate pressure cylinder 5 share a cylinder body in other words, and first intermediate pressure cylinder 4 air intake and the air intake of the second intermediate pressure cylinder 5 be respectively provided at the both sides of the first intermediate pressure cylinder 4 and the second intermediate pressure cylinder 5 junction, thus taking up room of the first intermediate pressure cylinder 4 and the second intermediate pressure cylinder 5 can be reduced, entirety to reduce steam-turbine unit takies volume and span, reduces cost. It addition, described low pressure (LP) cylinder 3 can be one, it is also possible to for multiple; When there being multiple low pressure (LP) cylinder 3, then described low pressure admission pipeline 15 is connected with the air intake of multiple low pressure (LP) cylinders 3; Described low pressure (LP) cylinder 3 may also be single current, i.e. a steam discharge, it is possible to is double fluid, i.e. two steam discharges.
In sum, the cogeneration double-extract steam turbine that the application relates to has the advantages that
1, under the premise not changing original steam turbine main structure, by setting up some valves between multiple cylinders and pipeline realizes cogeneration and the black soy sauce of steam turbine, thus saving cost, and also not by the restriction of steam turbine structure and intensity aspect, ensure steam turbine efficient design under pure condensate operating mode and operation simultaneously;
2, when user's thermic load changes greatly, the operation cylinder number of steam turbine can be managed, promote operational efficiency as much as possible;
3, black soy sauce way of steam relative reduction in design difficulty of this steam-turbine unit, draws gas more reliable when running, adapts to the requirement of Large Copacity, high pressure high temperature turbosets, facilitate the operation of steam turbine, maintenance and maintenance;
4, control valve group the 18, the 3rd control valve group the 19, the 4th by adjustment the first control valve group 17, second and control the aperture of valve group 20 and the 5th control valve group 21, it is achieved two sections of adjustment are drawn gas, to meet steam turbine in the service condition of operating mode of drawing gas.
So, this utility model effectively overcomes various shortcoming of the prior art and has high industrial utilization.
Above-described embodiment only illustrative principle of the present utility model and effect thereof, not for restriction this utility model. Above-described embodiment all under spirit of the present utility model and category, can be modified or change by any those skilled in the art. Therefore, art has all equivalence modification or changes that usually intellectual completes under the spirit disclosed without departing from this utility model with technological thought such as, must be contained by claim of the present utility model.
Claims (7)
1. a cogeneration double-extract steam turbine, it is characterized in that: include the high pressure cylinder (1) being sequentially distributed from high to low along steam inlet condition, first intermediate pressure cylinder (4), second intermediate pressure cylinder (5) and low pressure (LP) cylinder (3), it is connected in first between steam drain and the air intake of the first intermediate pressure cylinder (4) of described high pressure cylinder (1) and is pressed into vapour mother pipe (8), the steam drain of described first intermediate pressure cylinder (4) is connected in first pressure vapour mother pipe (9), this is connected in the first adjustment extraction line (10) and second and is pressed into vapour mother manages (12) in end of pressure vapour mother pipe (9) in first, be pressed in described second that the end of vapour mother pipe (12) is also associated with being connected with the air intake of the second intermediate pressure cylinder (5) first is pressed into vapour and is in charge of (11), the steam drain of described second intermediate pressure cylinder (5) is connected in second pressure vapour mother pipe (13), this low pressure admission pipeline (15) that end of pressure vapour mother pipe (13) is connected to the second adjustment extraction line (14) and the air intake with low pressure (LP) cylinder (3) is connected in second.
2. cogeneration double-extract steam turbine according to claim 1, it is characterized in that: be pressed into vapour mother pipe (12) in described second and be provided with the first control valve group (17), the first gas pressure transducer (22) and second that the first adjustment extraction line (10) is provided with along direction successively distribution of drawing gas controls valve group (18); Described low pressure admission pipeline (15) is provided with the 3rd control valve group (19), and the second gas pressure transducer (23) and the 4th that the second adjustment extraction line (14) is provided with along direction successively distribution of drawing gas controls valve group (20).
3. cogeneration double-extract steam turbine according to claim 1, it is characterized in that: be pressed into vapour in described first and be in charge of on (11) and be additionally provided with the 3rd gas pressure transducer (24) for detecting the second intermediate pressure cylinder (5) air intake pressure, entering vapour direction along the second intermediate pressure cylinder (5), described 3rd gas pressure transducer (24) is positioned at the rear of the first control valve group (17); Described low pressure admission pipeline (15) is additionally provided with the 4th gas pressure transducer (25) for detecting low pressure (LP) cylinder (3) air intake pressure, entering vapour direction along low pressure (LP) cylinder (3), described 4th gas pressure transducer (25) is positioned at the rear of the 3rd control valve group (19).
4. cogeneration double-extract steam turbine according to claim 1, it is characterized in that: also include a mesolow cylinder (6), be pressed in described second that the end of vapour mother pipe (12) is also associated with being connected with the air intake of mesolow cylinder (6) second is pressed into vapour and is in charge of (16), it is pressed into vapour in described second to be in charge of the 5th of the vapour direction successively distribution successively of entering that (16) be provided with along mesolow cylinder (6) and control valve group (21) and the 5th gas pressure transducer (26), described 5th gas pressure transducer (26) is used for detecting the air intake pressure of mesolow cylinder (6).
5. cogeneration double-extract steam turbine according to claim 4, it is characterized in that: the rotor of described high pressure cylinder (1), the rotor of the first intermediate pressure cylinder (4), the rotor of the second intermediate pressure cylinder (5) and the rotor single shaft of low pressure (LP) cylinder (3) are arranged and constitute the first rotor, the rotor of mesolow cylinder (6) constitutes the second rotor, described the first rotor and the second rotor and is rigidly connected.
6. cogeneration double-extract steam turbine according to claim 4, it is characterized in that: the rotor of described high pressure cylinder (1), the rotor of the first intermediate pressure cylinder (4), the rotor of the second intermediate pressure cylinder (5) and the rotor single shaft of low pressure (LP) cylinder (3) are arranged and constitute the first rotor, the rotor of mesolow cylinder (6) is constituted the second rotor, described the first rotor and the second rotor split axle and arranges or be connected by motor synchronizing clutch.
7. cogeneration double-extract steam turbine according to claim 1, it is characterised in that: described first intermediate pressure cylinder (4) and the second intermediate pressure cylinder (5) are for closing cylinder reflux structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521039317.2U CN205315057U (en) | 2015-12-14 | 2015-12-14 | Cogeneration black soy sauce steam turbine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521039317.2U CN205315057U (en) | 2015-12-14 | 2015-12-14 | Cogeneration black soy sauce steam turbine |
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| CN205315057U true CN205315057U (en) | 2016-06-15 |
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| CN201521039317.2U Active CN205315057U (en) | 2015-12-14 | 2015-12-14 | Cogeneration black soy sauce steam turbine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870033A (en) * | 2015-12-14 | 2017-06-20 | 上海电气电站设备有限公司 | Cogeneration double-extract steam turbine |
-
2015
- 2015-12-14 CN CN201521039317.2U patent/CN205315057U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870033A (en) * | 2015-12-14 | 2017-06-20 | 上海电气电站设备有限公司 | Cogeneration double-extract steam turbine |
| CN106870033B (en) * | 2015-12-14 | 2019-04-19 | 上海电气电站设备有限公司 | Cogeneration double-extract steam turbine |
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