CN108561192A - A kind of turbine steam seal system and turbine generating system - Google Patents
A kind of turbine steam seal system and turbine generating system Download PDFInfo
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- CN108561192A CN108561192A CN201810215770.6A CN201810215770A CN108561192A CN 108561192 A CN108561192 A CN 108561192A CN 201810215770 A CN201810215770 A CN 201810215770A CN 108561192 A CN108561192 A CN 108561192A
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- steam
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- pipe
- gland
- multistage
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
- F01D11/04—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type using sealing fluid, e.g. steam
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
- F01D11/04—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type using sealing fluid, e.g. steam
- F01D11/06—Control thereof
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The present invention relates to machinery equipment field, provide a kind of turbine steam seal system, including steam turbine, condenser, surge tank, multistage pump-line group and multistage gland-packing leakage pipeline group, one end of steam turbine connects high steam transfer pipeline, high steam transfer pipeline is connected with the high-pressure steam seal pipe being connected to surge tank, and the first valve is provided on high-pressure steam seal pipe；The other end connection low-pressure steam transfer pipeline and steam exhaust delivery pipe, low-pressure steam transfer pipeline of steam turbine are connected with low-pressure steam tube sealing, and low-pressure steam tube sealing is connected to surge tank simultaneously, and steam exhaust delivery pipe is connected to condenser；Multistage pump-line group is connected to steam turbine；Multistage gland-packing leakage pipeline group is connect with high steam transfer pipeline and surge tank；Condenser is connected to by being provided with the return tube of the second valve with surge tank.It is the turbine steam seal system good airproof performance, safe.The present invention also provides the turbine generating systems for including above-mentioned turbine steam seal system, equally have the advantages that above-mentioned.
Description
Technical field
The present invention relates to machinery equipment field, in particular to a kind of turbine steam seal system and steam turbine power generation system
System.
Background technology
Turbine steam seal system effect is to prevent high steam from passing through high pressure shaft end external leakage in steam turbine operation, or even alter
Entering bearing housing causes to intake in lubricating oil, while preventing air from leaking into low pressure (LP) cylinder by low pressure shaft end and destroying unit vacuum.If
Turbine steam seal system designs the unreasonable safety by the leakproofness and sealing system that largely effect on sealing system.
In consideration of it, special propose the present invention.
Invention content
The present invention provides a kind of turbine steam seal systems, it is intended to improve existing turbine steam seal system because of structure design
Poor sealing caused by unreasonable, the low problem of safety.
The present invention also provides a kind of turbine generating system, good airproof performance is safe.
The invention is realized in this way：
A kind of turbine steam seal system, including steam turbine, condenser, surge tank, multistage pump-line group and multistage packing
One end of leaking gas conduit group, steam turbine is connected with high steam transfer pipeline, and high steam transfer pipeline is connected with high-pressure steam seal
Pipe, high-pressure steam seal pipe are connected to surge tank, and the first valve is provided on high-pressure steam seal pipe；
The other end connection low-pressure steam transfer pipeline and steam exhaust delivery pipe, low-pressure steam transfer pipeline of steam turbine are connected with
Low-pressure steam tube sealing, one end of low-pressure steam tube sealing is connect with the junction for the neighbouring device being arranged on low-pressure steam transfer pipeline, low
The other end of pressure packing pipe is connected to surge tank, and steam exhaust delivery pipe is connected to condenser；
Multistage pump-line group includes multistage exhaust tube, multistage exhaust tube steam turbine upper edge high steam transfer pipeline extremely
The direction of low-pressure steam transfer pipeline is arranged, and multistage exhaust tube is connected to steam turbine；
Multistage gland-packing leakage pipeline group is connect with high steam transfer pipeline, multistage gland-packing leakage pipeline group and high steam
The junction of transfer pipeline, between high-pressure steam seal pipe and the junction and steam turbine of high steam delivery pipe, multistage packing
Leaking gas conduit group includes multistage gland-packing leakage pipe, the neighbouring device being arranged on every section of gland-packing leakage pipe and high steam transfer pipeline
Junction connection, multistage gland-packing leakage pipeline group is also by pressing connecting tube to be connect with surge tank；
Condenser is connected to by return tube with surge tank, and the second valve is provided on return tube.
Further, in preferred embodiments of the present invention, the second valve is electric control valve.
Further, in preferred embodiments of the present invention, surge tank include babinet and the initial steam pipe being connected to babinet,
Desuperheat water pipe and drain pipe.
Further, in preferred embodiments of the present invention, multistage gland-packing leakage pipeline group includes being sequentially connected to high pressure
The first gland-packing leakage pipe, the second gland-packing leakage pipe and the third gland-packing leakage pipe of steam pipeline road, the first gland-packing leakage pipe
Close to high-pressure steam seal pipe, the first gland-packing leakage pipe is by pressing connecting tube to be connected to surge tank.
Further, in preferred embodiments of the present invention, multistage pump-line includes be sequentially connected to steam turbine
One exhaust tube, the second exhaust tube, third exhaust tube, the 4th exhaust tube, the 5th exhaust tube and the 6th exhaust tube, the first exhaust tube
Close to high steam delivery pipe, the 6th exhaust tube connects close to low-pressure steam delivery pipe, six exhaust tubes of the first gland-packing leakage Guan Yu
Logical, tetra- exhaust tubes of the second gland-packing leakage Guan Yu connection, third gland-packing leakage pipe is connected to the second exhaust tube.
Further, in preferred embodiments of the present invention, the pipeline of six exhaust tubes of the first gland-packing leakage Guan Yu connection
On be provided with third valve.
Further, in preferred embodiments of the present invention, pipeline that third gland-packing leakage pipe is connected to the second exhaust tube
On be provided with the 4th valve, the 4th valve is electrically operated valve.
Further, in preferred embodiments of the present invention, one end of desuperheat water pipe is provided with nozzle, and nozzle is located at babinet
It is interior.
Further, in preferred embodiments of the present invention, the 5th valve is provided on low-pressure steam tube sealing, the 5th valve is
Electrically operated valve.
A kind of turbine generating system, including generator and above-mentioned turbine steam seal system, generator connect with steam turbine
It connects.
The beneficial effects of the invention are as follows：The turbine steam seal system that the present invention is obtained by above-mentioned design, in use, due to
The mutual cooperation effect of condenser, surge tank, multistage pump-line group and multistage gland-packing leakage pipeline group so that turbine system
With preferable leakproofness, so that the course of work is safe efficient and avoids the excess resource waste brought by gas leakage.And
First valve presses that connecting tube, the setting of the second valve can improve turbine steam seal system on return tube and return tube
Safety.
The turbine generating system that the present invention is obtained by above-mentioned design, due to including turbine steam seal provided by the invention
System, therefore the turbine generating system good airproof performance, it is safe.
Description of the drawings
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of embodiment of the present invention
Attached drawing be briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not to be seen as
It is the restriction to range, it for those of ordinary skill in the art, without creative efforts, can be with root
Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram for the turbine steam seal system that first embodiment of the invention provides；
Fig. 2 is the structural scheme of mechanism of surge tank in Fig. 1；
Fig. 3 is the structural schematic diagram for the turbine generating system that first embodiment of the invention provides；
Fig. 4 is the structural schematic diagram for the turbine steam seal system that second embodiment of the invention provides.
Icon：10- turbine generating systems；100- turbine steam seal systems；110- steam turbines；111- high steams convey
Pipeline；112- low-pressure steam transfer pipelines；113- high-pressure steam seal pipes；114- low-pressure steam tube sealings；115- steam exhaust delivery pipes；120- is solidifying
Vapour device；121- return tubes；130- surge tanks；131- babinets；132- initial steam pipes；133- desuperheat water pipes；134- drain pipes；135-
Nozzle；150- multistage pump-line groups；The first exhaust tubes of 151-；The second exhaust tubes of 152-；153- third exhaust tubes；154- the 4th
Exhaust tube；The 5th exhaust tubes of 155-；The 6th exhaust tubes of 156-；170- multistage gland-packing leakage pipeline groups；The first gland-packing leakages of 171-
Pipe；172- the second gland-packing leakage pipes；173- third gland-packing leakage pipes；175- presses connecting tube；The first valves of 191-；192- second
Valve；193- third valves；The 4th valves of 194-；The 5th valves of 195-；11- generators；200- turbine steam seal systems；250-
Multistage pump-line group；270- multistage gland-packing leakage pipeline groups.
Specific implementation mode
To keep the purpose, technical scheme and advantage of embodiment of the present invention clearer, implement below in conjunction with the present invention
The technical solution in embodiment of the present invention is clearly and completely described in attached drawing in mode, it is clear that described reality
The mode of applying is some embodiments of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained without creative efforts, belongs to the present invention
The range of protection.Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit and wants below
The scope of the present invention of protection is sought, but is merely representative of the selected embodiment of the present invention.Based on the embodiment in the present invention,
The every other embodiment that those of ordinary skill in the art are obtained without creative efforts belongs to this
Invent the range of protection.
In the description of the present invention, it is to be understood that, the orientation or position of the instructions such as term "upper", "lower", "inner", "outside"
It is to be based on the orientation or positional relationship shown in the drawings to set relationship, is merely for convenience of description of the present invention and simplification of the description, rather than
Indicate or imply that signified equipment or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot
It is interpreted as limitation of the present invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects
It connects, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary in two elements
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or "lower"
It may include that the first and second features are in direct contact, can also not be to be in direct contact but pass through it including the first and second features
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " include first special
Sign is right over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include fisrt feature immediately below second feature and obliquely downward, or be merely representative of
Fisrt feature level height is less than second feature.
First embodiment
As shown in Figure 1, an embodiment of the present invention provides a kind of turbine steam seal system 100, including steam turbine 110, condensing
Device 120, surge tank 130, multistage pump-line group 150 and multistage gland-packing leakage pipeline group 170.
Specifically, one end of steam turbine 110 is communicated with high steam transfer pipeline 111, and high steam transfer pipeline 111 connects
It is connected to high-pressure steam seal pipe 113, high-pressure steam seal pipe 113 is connected to surge tank 130, and the first valve is provided on high-pressure steam seal pipe 113
191.The setting of first valve 191 adjusts in time convenient for high underload.
The other end connection low-pressure steam transfer pipeline 112 of steam turbine 110, low-pressure steam transfer pipeline 112 is connected with low
Press packing pipe 114 and steam exhaust delivery pipe 115, one end of low-pressure steam tube sealing 114 and the phase being arranged on low-pressure steam transfer pipeline 112
The junction of adjacent equipment connects, and the other end of low-pressure steam tube sealing 114 is connected to surge tank 130, steam exhaust delivery pipe 115 and condenser
120 connections.
Due to the junction between equipment and equipment be not achieved completely it is airtight, it may appear that gas leak phenomenon, setting it is low
Pressure packing pipe 114 is mainly used for neighbouring device connection place leakage low-pressure steam being connected to surge tank 130, reaches the effect of packing
Fruit.Steam exhaust delivery pipe 115, which is mainly used for that the steam to complete will be done in steam turbine 110, to be discharged into condenser 120, in condenser
120 tell somebody what one's real intentions are at a temperature of condense into water.
Multistage pump-line group 150 includes multistage exhaust tube, and multistage exhaust tube is conveyed in 110 upper edge high steam of steam turbine
Pipeline 111 to the direction of low-pressure steam transfer pipeline 112 is arranged, and multistage exhaust tube is connected to steam turbine 110.
In order to avoid the collision between the 110 dynamic and static component in inside of steam turbine, it is necessary to which there are gaps appropriate.These gaps
Presence necessarily lead to again leakage vapour so that efficiency is reduced, in order to solve this contradiction, the gap location between 110 sound component of steam turbine
Connect exhaust tube, i.e. packing.Since before and after cylinder internal, the partition board and movable vane piece both sides with degree of reaction are there is pressure difference, and phase
Certain gap must be kept between each dynamic and static part by answering, this has been resulted in, and certain steam leaks out or air is leak into cylinder, if
After setting multistage exhaust tube, packing can be carried out to steam turbine 110, and the high-temperature steam leaked out in steam turbine 110 can also be recycled,
Both it ensure that the working efficiency of steam turbine 110 in turn avoided energy waste.
Multistage gland-packing leakage pipeline group 170 is connected to high steam transfer pipeline 111, multistage gland-packing leakage pipeline group 170
With the junction of high steam transfer pipeline 111, it is located at the junction of high-pressure steam seal pipe 113 and high steam transfer pipeline 111
Between steam turbine 110, multistage gland-packing leakage pipeline group 170 includes multistage gland-packing leakage pipe, every section of gland-packing leakage pipe and high pressure
The junction for the neighbouring device being arranged on steam conveying pipeline 111 connects, and multistage gland-packing leakage pipeline group 170 also passes through the company of pressure
Take over 175 is connected to surge tank 130.
Due to the junction on high steam transfer pipeline 111 between equipment and equipment be not achieved completely it is airtight, meeting
Leak air phenomenon, and the junction connection between the multistage gland-packing leakage pipeline group 170 being arranged and neighbouring device can reach
The effect of sealing, while the high steam of leakage can also be recycled by multistage gland-packing leakage pipeline group 170, it both ensure that steamer
The safety of machine system saves the energy again.
Condenser 120 is connected to by return tube 121 with surge tank 130, and the second valve 192 is provided on return tube 121.When
When 110 high load capacity of steam turbine, 170 pressure rise of multistage gland-packing leakage pipeline group, extra gas leakage is by pressing connecting tube 175 logical
Enter to surge tank 130, in the premise for meeting low-pressure steam and being sealed envelope, by extra leakage vapour, through return tube 121, recycling is led in time again
Condenser 120.
Pass through the phase of condenser 120, surge tank 130, multistage pump-line group 150 and multistage gland-packing leakage pipeline group 170
Mutual mating reaction so that turbine system have preferable leakproofness so that the course of work it is safe efficient and avoid because
The excess resource waste that gas leakage is brought.And the setting of the first valve 191 is convenient for being adjusted in time according to the load of high-pressure steam seal pipe 113
Pressure in high-pressure steam seal pipe 113, the safety higher for making turbine steam seal system 100 run.And press connecting tube 175, back-steam
The setting of second valve 192 then can lead to multistage gland-packing leakage pipe in 110 high load capacity of steam turbine on pipe 121 and return tube 121
By pressing connecting tube 175 and return tube 121 that extra gas leakage is recycled to condenser 120 when road 170 pressure rise of group, further
Improve the safety of turbine steam seal system 100.
Further, the second valve 192 is electric control valve.Electric control valve can in induction pipe pressure height,
And the voluntarily opening of Confucius's valve and the closing of the height for interior pressure of threading a pipe, it can when the second valve 192 is electric control valve
Human cost is effectively saved, and can timely efficient operation.
As shown in Fig. 2, further, surge tank 130 include babinet 131 and the initial steam pipe 132 being connected to babinet 131,
Desuperheat water pipe 133 and drain pipe 134.It needs to extract gas in babinet 131, and initial steam pipe out before due to turbine system starting
132 for extracting the gas in babinet 131 out before activation.At work, main function is balanced into babinet to surge tank 130
The pressure of high-temperature steam in 131, and when babinet is in high load capacity, the effect of desuperheat water pipe 133 is to be passed through water at low temperature to make high temperature
Steam temperature reduction achievees the effect that decompression.Each service pipe is preheated before turbine system starts, and is preheated logical
Frequently be high-temperature water, then the effect of drain pipe 134 be by preheating after water from babinet 131 be passed through into condenser 120 return
It receives.
Further, one end of desuperheat water pipe 133 is provided with nozzle 135, and nozzle 135 is located in babinet 131.Desuperheat water pipe
Water at low temperature in 133 is sprayed to 131 interior energy of babinet by nozzle 135 and more efficiently cools down to the high-temperature steam in babinet 131
To achieve the effect that decompression.
Further, multistage gland-packing leakage pipeline group 170 includes the be sequentially connected on high steam transfer pipeline 111
One gland-packing leakage pipe 171, the second gland-packing leakage pipe 172 and third gland-packing leakage pipe 173, the first gland-packing leakage pipe 171 is close to high
Packing pipe 113 is pressed, the first gland-packing leakage pipe 171 is by pressing connecting tube 175 to be connected to surge tank 130.
If being not provided with pressing connecting tube 175, when underload, need to open 132 valve of initial steam pipe to 130 steam supply of surge tank, because
Initial steam temperature is excessively high, and the control of 130 temperature of surge tank is very difficult, be easy to cause packing suddenly cold and hot.First gland-packing leakage pipe
Leakage steam pressure, temperature are relatively suitable as 130 filling of surge tank in 171.Therefore in underrun, the first gland-packing leakage is utilized
Pipe 171 supplements 130 steam of surge tank.
Further, multistage pump-line includes the first exhaust tube 151, second pumping for being sequentially connected to steam turbine 110
Pipe 152, third exhaust tube 153, the 4th exhaust tube 154, the 5th exhaust tube 155 and the 6th exhaust tube 156, the first exhaust tube
151 close to high steam transfer pipeline 111, and the 6th exhaust tube 156 of institute is close to low-pressure steam transfer pipeline 112, the leakage of the first packing
Tracheae 171 is connected to the 6th exhaust tube 156, and the second gland-packing leakage pipe 172 is connected to the 4th exhaust tube 154, third gland-packing leakage
Pipe 173 is connected to the second exhaust tube 152.
Further, third valve is provided on the pipeline that the first gland-packing leakage pipe 171 is connected to the 6th exhaust tube 156
193.Third valve 193 is hand sluice valve, and third valve 193 can be by manual operation by the first gland-packing leakage pipe 171 and the 6th
Exhaust tube 156 is isolated, and when the first gland-packing leakage pipe 171 is that surge tank 130 supplements steam, closes third valve 193, prevents the
Steam enters surge tank 130 together in six exhaust tubes 156.
Further, the 4th valve is provided on the pipeline that third gland-packing leakage pipe 173 is connected to the second exhaust tube 152
194, it is adjusted in time for ease of high underload, the 4th valve 194 is electrically operated valve.
Further, the 5th valve 195 is provided on low-pressure steam tube sealing 114, the 5th valve 195 is electrically operated valve.Setting
The purpose of 5th valve 195 is easy for high underload and adjusts high-low pressure axle envelope in time sending vapour.
As shown in figure 3, the present embodiment additionally provides a kind of turbine generating system 10 comprising generator 11 and the present invention
The turbine steam seal system 100 of offer, generator 11 are connect with steam turbine 110.Since turbine generating system 10 includes this
The turbine steam seal system 100 provided is invented, therefore it is with good airproof performance, safe feature.
Second embodiment
The technique effect of the turbine steam seal system 200 that the embodiment of the present invention is provided, realization principle and generation and
One embodiment is identical, and to briefly describe, the present embodiment does not refer to place, can refer to corresponding contents in first embodiment.
As shown in figure 4, in turbine steam seal system 200 provided in this embodiment, multistage pump-line group 250 includes four sections
Pump-line.Multistage gland-packing leakage pipeline group 270 includes both ends pump-line.
It should be noted that in other embodiments of the invention multistage pump-line group 250 in addition to the present embodiment and
First embodiment include 4 sections and 6 sections, can also be 2 sections, 3 sections, 5 sections or 6 sections or more, this is according to power plant actual conditions
Selection.Likewise, multistage gland-packing leakage pipeline group 270 can also be in other embodiments of the invention 1 section or 3 sections with
On.
In conclusion turbine steam seal system provided by the invention, due to condenser, surge tank, multistage pump-line group
Mutual cooperation with multistage gland-packing leakage pipeline group acts on so that turbine system has preferable leakproofness, so that work
Make process safety, efficiently and avoid the excess resource waste brought by gas leakage.And the setting of the first valve is convenient for according to high pressure
The load of packing pipe adjusts high-pressure steam seal overpressure in time, the safety higher for making turbine steam seal system run.And it presses
The setting of the second valve then can lead to multistage gland-packing leakage pipeline in steam turbine high load capacity on connecting tube, return tube and return tube
Extra gas leakage is recycled to condenser by with return tube by pressing connection when group pressure rise, further improves steam turbine
The safety of sealing system.
Turbine generating system provided by the invention, due to including turbine steam seal system provided by the invention, therefore the vapour
Turbine electricity generation system good airproof performance, it is safe.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for this field
For technical staff, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of turbine steam seal system, which is characterized in that including steam turbine, condenser, surge tank, multistage pump-line group and
One end of multistage gland-packing leakage pipeline group, the steam turbine is connected with high steam transfer pipeline, the high steam delivery pipe
Road is connected with high-pressure steam seal pipe, and the high-pressure steam seal pipe is connected to the surge tank, and first is provided on the high-pressure steam seal pipe
Valve；
The other end connection low-pressure steam transfer pipeline and steam exhaust delivery pipe of the steam turbine, the low-pressure steam transfer pipeline connect
It is connected to low-pressure steam tube sealing, the company for the neighbouring device being arranged on one end of the low-pressure steam tube sealing and the low-pressure steam transfer pipeline
Place's connection is connect, the other end of the low-pressure steam tube sealing is connected to the surge tank, and the steam exhaust delivery pipe connects with the condenser
It is logical；
The multistage pump-line group includes multistage exhaust tube, and exhaust tube high pressure described in the steam turbine upper edge described in multistage is steamed
Vapour transfer pipeline to the direction of the low-pressure steam transfer pipeline is arranged, and exhaust tube is connected to the steam turbine described in multistage；
The multistage gland-packing leakage pipeline group is connect with the high steam transfer pipeline, the multistage gland-packing leakage pipeline group with
The junction of the high steam transfer pipeline, be located at the high-pressure steam seal pipe and the high steam delivery pipe junction and
Between the steam turbine, the multistage gland-packing leakage pipeline group includes multistage gland-packing leakage pipe, every section of gland-packing leakage pipe with it is described
The junction for the neighbouring device being arranged on high steam transfer pipeline connects, and the multistage gland-packing leakage pipeline group is also by pressing
Connecting tube is connect with the surge tank；
The condenser is connected to by return tube with the surge tank, and the second valve is provided on the return tube.
2. turbine steam seal system according to claim 1, which is characterized in that second valve is electric control valve.
3. turbine steam seal system according to claim 1, which is characterized in that the surge tank include babinet and with it is described
Initial steam pipe, desuperheat water pipe and the drain pipe of babinet connection.
4. turbine steam seal system according to claim 3, which is characterized in that the multistage gland-packing leakage pipeline group includes
The first gland-packing leakage pipe, the second gland-packing leakage pipe and the third gland-packing leakage being sequentially connected on the high steam transfer pipeline
Pipe, the first gland-packing leakage pipe press connecting tube close to the high-pressure steam seal pipe, the first gland-packing leakage pipe by described
It is connected to the surge tank.
5. turbine steam seal system according to claim 4, which is characterized in that the multistage pump-line includes connecting successively
It is connected to the first exhaust tube, the second exhaust tube, third exhaust tube, the 4th exhaust tube, the 5th exhaust tube and of the steam turbine
Six exhaust tubes, first exhaust tube is close to the high steam delivery pipe, and the 6th exhaust tube is close to the low-pressure steam
Delivery pipe, the first gland-packing leakage pipe are connected to the 6th exhaust tube, and the second gland-packing leakage pipe is taken out with the described 4th
Tracheae is connected to, and the third gland-packing leakage pipe is connected to second exhaust tube.
6. turbine steam seal system according to claim 5, which is characterized in that the first gland-packing leakage pipe and described the
It is provided with third valve on the pipeline of six exhaust tubes connection.
7. turbine steam seal system according to claim 5, which is characterized in that the third gland-packing leakage pipe and described the
The 4th valve is provided on the pipeline of two exhaust tubes connection, the 4th valve is electrically operated valve.
8. turbine steam seal system according to claim 3, which is characterized in that one end of the desuperheat water pipe is provided with spray
Head, the nozzle are located in the babinet.
9. turbine steam seal system according to claim 1, which is characterized in that be provided with the 5th on the low-pressure steam tube sealing
Valve, the 5th valve are electrically operated valve.
10. a kind of turbine generating system, which is characterized in that including generator and such as claim 1-9 any one of them vapour
Turbine sealing system, the generator are connect with the steam turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810215770.6A CN108561192A (en) | 2018-03-15 | 2018-03-15 | A kind of turbine steam seal system and turbine generating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810215770.6A CN108561192A (en) | 2018-03-15 | 2018-03-15 | A kind of turbine steam seal system and turbine generating system |
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| CN108561192A true CN108561192A (en) | 2018-09-21 |
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| CN201810215770.6A Pending CN108561192A (en) | 2018-03-15 | 2018-03-15 | A kind of turbine steam seal system and turbine generating system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653543A (en) * | 2021-09-24 | 2021-11-16 | 三门核电有限公司 | Method for reducing temperature of low-pressure shaft seal steam of nuclear turbine |
| CN114215613A (en) * | 2021-12-14 | 2022-03-22 | 嘉利特荏原泵业有限公司 | Steam sealing system for condensing steam turbine |
-
2018
- 2018-03-15 CN CN201810215770.6A patent/CN108561192A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653543A (en) * | 2021-09-24 | 2021-11-16 | 三门核电有限公司 | Method for reducing temperature of low-pressure shaft seal steam of nuclear turbine |
| CN113653543B (en) * | 2021-09-24 | 2023-10-20 | 三门核电有限公司 | Low-pressure shaft seal steam temperature reduction method of nuclear turbine |
| CN114215613A (en) * | 2021-12-14 | 2022-03-22 | 嘉利特荏原泵业有限公司 | Steam sealing system for condensing steam turbine |
| CN114215613B (en) * | 2021-12-14 | 2024-04-09 | 嘉利特荏原泵业有限公司 | Steam sealing system for condensing steam turbine |
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