CN206513404U - Steam power plant's optical axis heating system - Google Patents
Steam power plant's optical axis heating system Download PDFInfo
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- CN206513404U CN206513404U CN201720138634.2U CN201720138634U CN206513404U CN 206513404 U CN206513404 U CN 206513404U CN 201720138634 U CN201720138634 U CN 201720138634U CN 206513404 U CN206513404 U CN 206513404U
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Abstract
A kind of steam power plant optical axis heating system, steam turbine includes being provided with high-pressure main throttle valve and high voltage adjusting valve on low pressure (LP) cylinder, high intermediate pressure cylinder, high intermediate pressure cylinder；High inter case and low pressure rotor are respectively arranged with high intermediate pressure cylinder and low pressure (LP) cylinder, the two ends of low pressure rotor are connected by shaft coupling with High inter case and the generator being placed in outside steam turbine respectively；Low pressure rotor includes the optical axis rotor and blade rotor being replaced mutually；Optical axis rotor is identical with weight with the length of blade rotor.This heating system, it is on the basis of the low pressure (LP) cylinder Leaf heat supply rotor of original condensing turbine, add a set of optical axis rotor, blade rotor and optical axis rotor are replaced according to different heating situations, the waste heat of heating period Turbo-generator Set is reclaimed to greatest extent, generatine set heat efficiency is improved, consumption of standard coal for power generation is reduced, meets the policy of current energy-saving and emission-reduction.
Description
Technical field
The utility model is related to a kind of heating system, especially a kind of steam power plant's optical axis heating system.
Background technology
What steam power plant mainly solved is the heat supply problem of resident, as the area of residence is more and more, midtown at present
Each heating plant has been substantially at oepration at full load state, and several heat sources of cogeneration of heat and power in recent years will be relatively nervous.It is existing
Steam turbine in thermal power plant unit, which is fixed, uses impeller-type rotor, belongs to condensing turbine, during heating, this condensing
The electric energy and the heat of loss expended in the rotor operation process of formula steam turbine mesolow cylinder is more, wastes substantial amounts of steam turbine
The heat of generating set, is a no small loss for steam power plant, on the basis of area of heat-supply service is improved on a large scale, will
The heat slatterned is reclaimed or reduced thermal losses, is to expand the big event that supply and demand is asked.
Utility model content
The waste that the utility model is caused for existing blade rotor during heating to heat is simple there is provided a kind of structure
Singly, steam power plant's optical axis heating system of Turbo-generator Set waste heat can be reclaimed to greatest extent.
The technical solution adopted in the utility model is：A kind of steam power plant optical axis heating system, including steam turbine, generating
Machine, the condenser used, in addition to heat exchangers for district heating, steam heating extraction line and pumps for hot water supply net, institute are connected with steam turbine
Stating steam turbine includes being provided with high-pressure main throttle valve and high voltage adjusting valve on low pressure (LP) cylinder, high intermediate pressure cylinder, high intermediate pressure cylinder；High intermediate pressure cylinder
Be respectively arranged with High inter case and low pressure rotor in low pressure (LP) cylinder, the two ends of described low pressure rotor respectively by shaft coupling with
High inter case and the generator connection being placed in outside steam turbine；
The low pressure rotor includes the optical axis rotor and blade rotor being replaced mutually；Optical axis rotor and blade rotor
Length is identical with weight.
The blade rotor includes the smooth bar part being connected with shaft coupling and the blade-section for being placed in smooth bar part periphery；Institute
The external diameter of blade-section is stated, is sequentially reduced vertically by center to two ends.
Described blade rotor is used suitable for the steam turbine of thermal power plant unit at the end of Heating Period.
The steam turbine that described optical axis rotor is applied to Heating Period thermal power plant unit is used.
The optical axis rotor is solid cylinder structure, and the two ends of optical axis rotor are respectively by shaft coupling and high intermediate pressure cylinder
High inter case and the generator input connection being placed in outside steam turbine.
When low pressure rotor is optical axis rotor, the circulation path of main steam is in steam turbine：Low pressure (LP) cylinder does not enter vapour, main steam by
High pressure throttle, high voltage adjusting valve are done manual work into high intermediate pressure cylinder, and middle pressure vapour fully enters the heat supply network being connected with steam turbine and added
Hot device carries out heat supply.
Steam heating extraction line, newly-increased heat exchangers for district heating and newly-increased pumps for hot water supply net constitute new heat supply mechanism；It is described
Steam heating extraction line one end is connected with the low pressure (LP) cylinder, and the newly-increased heat exchangers for district heating vapour of other end connection is surveyed；The heat supply network is supplied
Return piping is connected with newly-increased heat exchangers for district heating water side, and heat supply network on return piping for adding newly-increased pumps for hot water supply net.
Compared with prior art, this heating system disclosed in the utility model, is in original condensing turbine
Low pressure (LP) cylinder Leaf heat supply rotor on the basis of, add a set of optical axis rotor, blade rotor and optical axis rotor are according to difference
Heating situation is replaced, and the waste heat of heating period Turbo-generator Set is reclaimed to greatest extent, improves generatine set heat efficiency, reduction hair
Electricity mark coal consumption, meets the policy of current energy-saving and emission-reduction.
Brief description of the drawings
Fig. 1 is Integral connection structure schematic diagram of the present utility model.
Fig. 2 is steam heating extraction line structural representation.
Fig. 3 is the structural representation of blade rotor.
Fig. 4 is block diagram of the present utility model of arranging net.
In figure：High inter case 1, optical axis rotor 2, generator 3, shaft coupling 4, steam heating extraction line 5, blade rotor
6。
Embodiment
The utility model is described further with reference to the accompanying drawings and examples.
Referring to accompanying drawing 1-4, this optical axis heating system disclosed in the utility model, including steam turbine, generator and vapour
The condenser that turbine connection is used, in addition to heat exchangers for district heating, steam heating extraction line and pumps for hot water supply net.Steam turbine includes
High-pressure main throttle valve and high voltage adjusting valve are provided with low pressure (LP) cylinder and high intermediate pressure cylinder, high intermediate pressure cylinder；In high intermediate pressure cylinder and low pressure (LP) cylinder
It is respectively arranged with High inter case 1 and low pressure rotor.By shaft coupling 4 and High inter case and put respectively at the two ends of low pressure rotor
Generator 3 outside steam turbine is connected.
Low pressure rotor includes the optical axis rotor 2 and blade rotor 6 being replaced mutually.Blade rotor includes connecting with shaft coupling
The smooth bar part that connects and the blade-section for being placed in smooth bar part periphery, the external diameter of blade-section, vertically by center to two ends according to
It is secondary to reduce.Optical axis rotor is solid cylinder structure, and the two ends of optical axis rotor pass through the senior middle school in shaft coupling and high intermediate pressure cylinder respectively
Pressure rotor and the generator input connection being placed in outside steam turbine.Optical axis rotor is identical with weight with the length of blade rotor.
It is defined by fixed length and weight.
Blade rotor is used suitable for the steam turbine of thermal power plant unit at the end of Heating Period.In non-heating period, low pressure rotor is
Low pressure (LP) cylinder acting in blade rotor, steam turbine, whole steam turbine is condensing turbine structure, belongs to condensation mode operation.
The steam turbine that optical axis rotor is applied to Heating Period thermal power plant unit is used.In Heating Period, the blade in low pressure (LP) cylinder is turned
Son is removed, and replaces with optical axis rotor, low pressure (LP) cylinder now is not done manual work, and optical axis rotor plays a part of transmitting moment of torsion.Vapour now
Turbine is non-condensing thermal power plant unit structure, and low pressure (LP) cylinder does not enter vapour, high-pressure main throttle valve, high voltage adjusting of the main steam by high intermediate pressure cylinder
Valve is done manual work into high intermediate pressure cylinder, middle pressure gas（The excision of low plus regenerative steam）Heat is all entered by steam heating extraction line
Net heater heat supply.Low pressure blade rotor is removed, optical axis rotor connection High inter case and generator, plays the work of transmission moment of torsion
With.The purport of the system is：Rotor in the low pressure (LP) cylinder that the different heating stages use is different, the low pressure rotor that Heating Period is used
For optical axis rotor, can radiate vapour, is simple transmission moment of torsion；The low pressure rotor that non-heating period is used is blade rotor, category
In condensation mode operation, improving for this structure can reclaim the exhaust steam heat that reason low pressure (LP) cylinder enters condenser in Heating Period,
The steam turbine of Heating Period does not enter the low pressure rotor of vapour steam discharge, and steam does not have enthalpy drop, heat supply network as much as possible is used for heat supply.
Steam heating extraction line, newly-increased heat exchangers for district heating and newly-increased pumps for hot water supply net constitute new heat supply mechanism；It is described
Steam heating extraction line one end is connected with the low pressure (LP) cylinder, and the newly-increased heat exchangers for district heating vapour of other end connection is surveyed；The heat supply network is supplied
Return piping is connected with newly-increased heat exchangers for district heating water side, and heat supply network on return piping for adding newly-increased pumps for hot water supply net.
This improvement project redesigns a turbine low pressure cylinder optical axis rotor, the former low pressure blade of winter heating period displacement
Rotor, steam enters the external heat supply of heat exchangers for district heating after being done work through high intermediate pressure cylinder by middle pressure vapour is all newly-increased；In non-heating season
Recover former low pressure rotor, unit is run under pure condensate operating mode.By feed pump turbine part, steam discharge enters low pressure (LP) cylinder, for cooling down
Optical axis rotor；Newly-increased a DN800 steam heatings extraction line, a heat exchangers for district heating and a pumps for hot water supply net, on-site
Newly-increased DN800 heat supply network supplies return piping.Winter condenser circulating cooling need are met using small-power water circulating pump mode is added
Ask, condensate pump heating period minimum discharge service requirement is met by frequency conversion and egr mode.
Claims (7)
1. a kind of steam power plant optical axis heating system, including steam turbine, generator, the condenser used is connected with steam turbine, also
Including heat exchangers for district heating, steam heating extraction line and pumps for hot water supply net, the steam turbine includes low pressure (LP) cylinder, high intermediate pressure cylinder, high
High-pressure main throttle valve and high voltage adjusting valve are provided with intermediate pressure cylinder；High inter case is respectively arranged with high intermediate pressure cylinder and low pressure (LP) cylinder
And low pressure rotor, the two ends of described low pressure rotor by shaft coupling and High inter case and are placed in outside steam turbine respectively
Generator is connected；It is characterized in that：
The low pressure rotor includes the optical axis rotor and blade rotor being replaced mutually；The length of optical axis rotor and blade rotor
It is identical with weight.
2. steam power plant according to claim 1 optical axis heating system, it is characterised in that the blade rotor includes and connection
The smooth bar part of axle device connection and the blade-section for being placed in smooth bar part periphery；The external diameter of the blade-section, vertically in
Centre to two ends are sequentially reduced.
3. steam power plant according to claim 2 optical axis heating system, it is characterised in that described blade rotor is applied to
The steam turbine of thermal power plant unit is used at the end of Heating Period.
4. steam power plant according to claim 1 optical axis heating system, it is characterised in that described optical axis rotor is applied to
The steam turbine of Heating Period thermal power plant unit is used.
5. steam power plant according to claim 4 optical axis heating system, it is characterised in that the optical axis rotor is solid
Cylindrical structure, the two ends of optical axis rotor by the High inter case in shaft coupling and high intermediate pressure cylinder and are placed in outside steam turbine respectively
Generator input connection.
6. steam power plant according to claim 4 optical axis heating system, it is characterised in that low pressure rotor is optical axis rotor
When, the circulation path of main steam is in steam turbine：Low pressure (LP) cylinder does not enter vapour, and main steam is entered by high pressure throttle, high voltage adjusting valve
Enter high intermediate pressure cylinder workmanship, middle pressure vapour fully enters the heat exchangers for district heating being connected with steam turbine and carries out heat supply.
7. steam power plant according to claim 1 optical axis heating system, it is characterised in that the steam heating extraction steam pipe
Road, newly-increased heat exchangers for district heating and newly-increased pumps for hot water supply net constitute new heat supply mechanism；Described steam heating extraction line one end with
The low pressure (LP) cylinder connection, the newly-increased heat exchangers for district heating vapour of other end connection is surveyed；The heat supply network is heated for return piping with newly-increased heat supply network
Device water side is connected, and heat supply network on return piping for adding newly-increased pumps for hot water supply net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720138634.2U CN206513404U (en) | 2017-02-16 | 2017-02-16 | Steam power plant's optical axis heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720138634.2U CN206513404U (en) | 2017-02-16 | 2017-02-16 | Steam power plant's optical axis heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206513404U true CN206513404U (en) | 2017-09-22 |
Family
ID=59867577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720138634.2U Active CN206513404U (en) | 2017-02-16 | 2017-02-16 | Steam power plant's optical axis heating system |
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| CN (1) | CN206513404U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594010A (en) * | 2020-12-01 | 2021-04-02 | 山东齐鲁电机制造有限公司 | Low-pressure rotor structure for heating season heat supply of condensing steam turbine |
-
2017
- 2017-02-16 CN CN201720138634.2U patent/CN206513404U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594010A (en) * | 2020-12-01 | 2021-04-02 | 山东齐鲁电机制造有限公司 | Low-pressure rotor structure for heating season heat supply of condensing steam turbine |
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