CN206803286U - Exhaust steam of electric power plant waste heat recovery heating system - Google Patents
Exhaust steam of electric power plant waste heat recovery heating system Download PDFInfo
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- CN206803286U CN206803286U CN201720512171.1U CN201720512171U CN206803286U CN 206803286 U CN206803286 U CN 206803286U CN 201720512171 U CN201720512171 U CN 201720512171U CN 206803286 U CN206803286 U CN 206803286U
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- steam
- heat
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- district heating
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Abstract
The utility model discloses a kind of exhaust steam of electric power plant waste heat recovery heating system, including the first heat exchangers for district heating, first steam jet ejector and the second steam jet ejector, the water side entrance of first heat exchangers for district heating is connected with heat supply network water return pipeline, the power steam entrance of first steam jet ejector is connected by pipeline and valve with Steam Turbine Through IP Admission discharge duct, the pump orifice of first steam jet ejector is connected by pipeline and valve with turbine low pressure cylinder discharge duct, the jet of first steam jet ejector is connected with the vapour side entrance of the first heat exchangers for district heating, the power steam entrance of second steam jet ejector is connected by pipeline and valve with Steam Turbine Through IP Admission discharge duct, the pump orifice of second steam jet ejector is connected with the vapour side outlet of the first heat exchangers for district heating.The utility model is rational in infrastructure, stable, can effectively utilize turbine low pressure cylinder exhaust steam heat energy, the heat loss for avoiding low pressure (LP) cylinder from being vented, has higher thermal efficiency.
Description
Technical field
It the utility model is related to a kind of heating system technical field of power plant's cogeneration units, and in particular to a kind of power plant
Exhaust steam residual heat reclaims heating system.
Background technology
Northern China winter temperature is cold, very long, and most regional heating periods were up to 4-6 months.And northern area resident's winter
Season, heat supply heating often also needed to consume a large amount of coals again.
With the continuous exacerbation of domestic air pollution in recent years, people increasingly pay attention to the utilization of clean energy resource, domestic heat
Electricity Federation production project is greatly developed.
In the prior art, the exhaust steam of power plant steam turbine discharge is often all condensed into water, a large amount of heat energy quilts by condenser
It is drained into environment, is not utilized effectively, causes to waste.How power plant steam turbine exhaust steam residual heat is effectively utilized, it is how sharp
With exhaust steam in steam turbine waste heat, turn into the technical problem of current urgent need to resolve.
The content of the invention
The purpose of this utility model is to overcome the shortcomings of the prior art, there is provided one kind can effectively utilize steamer
The exhaust steam heat energy of machine low pressure (LP) cylinder, the heat loss for avoiding low pressure (LP) cylinder from being vented, and the exhaust steam of electric power plant waste heat recovery with higher thermal efficiency
Heating system.
The utility model is achieved through the following technical solutions：A kind of exhaust steam of electric power plant waste heat recovery heating system, including
First heat exchangers for district heating, the first steam jet ejector and the second steam jet ejector, the water side entrance of first heat exchangers for district heating with
Heat supply network water return pipeline connects, and the power steam entrance of first steam jet ejector passes through pipeline and valve and Steam Turbine Through IP Admission
Discharge duct is connected, and the pump orifice of first steam jet ejector is connected by pipeline and valve with turbine low pressure cylinder discharge duct
Connect, the jet of first steam jet ejector is connected with the vapour side entrance of first heat exchangers for district heating, second steam
The power steam entrance of injector is connected by pipeline and valve with Steam Turbine Through IP Admission discharge duct, the second steam injection
The pump orifice of device is connected with the vapour side outlet of first heat exchangers for district heating.
Also include the second heat exchangers for district heating, the water side outlet of first heat exchangers for district heating and second heat exchangers for district heating
The connection of water side entrance, the water side outlet of second heat exchangers for district heating is connected with heat supply network water supply line, and second heat supply network adds
The vapour side entrance of hot device is connected with Steam Turbine Through IP Admission discharge duct, and the hydrophobic outlet of second heat exchangers for district heating passes through pipe
Road, water seal and valve are connected with the vapour side of first heat exchangers for district heating.
Also include pipe heat exchanger, the water side entrance of the pipe heat exchanger passes through pipeline and valve and the heat supply network backwater
Pipeline connects, and the water side outlet of the pipe heat exchanger passes through the water side entrance of pipeline and valve and second heat exchangers for district heating
Connection, the jet of second steam jet ejector are connected with the vapour side entrance of the pipe heat exchanger, the pipe heat exchanger
Hydrophobic outlet be connected by pipeline, water seal and valve with condenser hotwell, the water side entrance and water side of the pipe heat exchanger
Outlet is provided with valve.
Also include hydrophobic heat exchanger, the tube-side inlet of the hydrophobic heat exchanger passes through pipeline and valve and the heat supply network backwater
Pipeline connects, and the tube side outlet of the hydrophobic heat exchanger passes through the water side entrance of pipeline and valve and second heat exchangers for district heating
Connection, the hydrophobic outlet of first heat exchangers for district heating is entered by pipeline, water seal and valve and the shell side of the hydrophobic heat exchanger
Mouthful connection, the shell-side outlet of the hydrophobic heat exchanger is connected by pipeline, water seal and valve with condenser hotwell, described hydrophobic to change
Tube-side inlet and the tube side outlet of hot device are provided with valve.
The beneficial effects of the utility model are：The utility model is rational in infrastructure, stable, can effectively utilize steam turbine
Low pressure (LP) cylinder exhaust steam heat energy, the heat loss for avoiding low pressure (LP) cylinder from being vented, has higher thermal efficiency.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：The steam jet ejectors of 1- first；The steam jet ejectors of 2- second；The heat exchangers for district heatings of 3- first；The heat supply networks of 4- second
Heater；5- pipe heat exchangers；6- hydrophobic heat exchangers；A- Steam Turbine Through IP Admission discharge ducts；B- turbine low pressure cylinder blast pipes
Road；C- heat supply network water return pipelines；D- heat supply network water supply lines；E- condenser hotwells.
Embodiment
The utility model is described in detail below in conjunction with accompanying drawing.
As shown in figure 1, a kind of exhaust steam of electric power plant waste heat recovery heating system, including the spray of the first heat exchangers for district heating 3, the first steam
The steam jet ejector 2 of emitter 1 and second, the water side entrance of the first heat exchangers for district heating 3 are connected with heat supply network water return pipeline C, the first steam
The power steam entrance of injector 1 is connected by pipeline and valve with Steam Turbine Through IP Admission discharge duct A, the first steam jet ejector
1 pump orifice is connected by pipeline and valve with turbine low pressure cylinder discharge duct B, the jet of the first steam jet ejector 1 with
The vapour side entrance connection of first heat exchangers for district heating 3, the power steam entrance of the second steam jet ejector 2 pass through pipeline and valve and vapour
The vapour side outlet of turbine intermediate pressure cylinder discharge duct A connections, the pump orifice of the second steam jet ejector 2 and the first heat exchangers for district heating 3 connects
Connect.
In the course of work, steam jet ejector extracts the exhaust of low pressure (LP) cylinder using intermediate pressure cylinder exhaust as dynamic medium, to heat
By the heat supply backwater of the first heat exchangers for district heating 3, the heat loss that low pressure (LP) cylinder is vented is avoided.Because the first steam jet ejector 1 is taken out
What is inhaled is the exhaust of low pressure (LP) cylinder, and its pressure is far below atmospheric pressure, therefore in order to ensure that the first heat exchangers for district heating 3 being capable of smooth work
Make, it is necessary to maintain the low pressure of vapour side in the first heat exchangers for district heating 3, the pump orifice of the second steam jet ejector 2 and the first heat supply network heat
The vapour side outlet connection of device 3, the second steam jet ejector 2 are helped to establish and tieed up by aspirating the vapour side of the first heat exchangers for district heating 3
Hold the low pressure of the first heat exchangers for district heating 3.
Referring to Fig. 1, the utility model also includes the second heat exchangers for district heating 4, the water side outlet of the first heat exchangers for district heating 3 and
The water side entrance connection of two heat exchangers for district heatings 4, the water side outlet of the second heat exchangers for district heating 4 are connected with heat supply network water supply line D, and second
The vapour side entrance of heat exchangers for district heating 4 is connected with Steam Turbine Through IP Admission discharge duct A, and the hydrophobic outlet of the second heat exchangers for district heating 4 leads to
Piping, water seal and valve are connected with the vapour side of the first heat exchangers for district heating 3.
When the heating-up temperature of the first heat exchangers for district heating 3 does not reach heating demand, vapour is utilized using the second heat exchangers for district heating 4
The exhaust of turbine intermediate pressure cylinder further improves heat supply network supply water temperature.
Referring to Fig. 1, the utility model also includes pipe heat exchanger 5, and the water side entrance of pipe heat exchanger 5 passes through pipeline and valve
Door is connected with heat supply network water return pipeline C, and the water side outlet of pipe heat exchanger 5 passes through pipeline and valve and the second heat exchangers for district heating 4
Water side entrance is connected, and the jet of the second steam jet ejector 2 is connected with the vapour side entrance of pipe heat exchanger 5, pipe heat exchanger 5
Hydrophobic outlet is connected by pipeline, water seal and valve with condenser hotwell E, the water side entrance of pipe heat exchanger 5 and water side outlet
It is provided with valve.
Pipe heat exchanger 5 is using heat supply network backwater as cooling water source, during the exhaust for cooling down the second steam jet ejector 2, returns
The exhaust gas heat of the second steam jet ejector 2 has been received, and has improved return water temperature, has improved the thermal efficiency.Pipe heat exchanger 5 it is hydrophobic
Condenser hotwell E is entered by water seal.
Referring to Fig. 1, the utility model also includes hydrophobic heat exchanger 6, and the tube-side inlet of hydrophobic heat exchanger 6 passes through pipeline and valve
Door be connected with heat supply network water return pipeline C, and the tube side of hydrophobic heat exchanger 6, which exports, passes through pipeline and valve and the second heat exchangers for district heating 4
Water side entrance connects, and the hydrophobic outlet of the first heat exchangers for district heating 3 passes through pipeline, water seal and valve and the shell side of hydrophobic heat exchanger 6
Entrance is connected, and the shell-side outlet of hydrophobic heat exchanger 6 is connected by pipeline, water seal and valve with condenser hotwell E, hydrophobic heat exchanger
6 tube-side inlet and tube side outlet is provided with valve.
Hydrophobic heat exchanger 6 is exchanged heat using heat supply network backwater as cooling water source with the first the hydrophobic of heat exchangers for district heating 3, recovery
Heat during first heat exchangers for district heating 3 is hydrophobic, improves return water temperature, improves the thermal efficiency.The hydrophobic of hydrophobic heat exchanger 6 is led to
Cross water seal and enter condenser hotwell E.
Finally it should be noted that above content is only illustrating the technical solution of the utility model, rather than to this practicality
The limitation of novel protected scope, simple modification that one of ordinary skill in the art is carried out to the technical solution of the utility model or
Person's equivalent substitution, all without departing from the spirit and scope of technical solutions of the utility model.
Claims (4)
- A kind of 1. exhaust steam of electric power plant waste heat recovery heating system, it is characterised in that：The exhaust steam of electric power plant waste heat recovery heating system bag Include the first heat exchangers for district heating, the first steam jet ejector and the second steam jet ejector, the water side entrance of first heat exchangers for district heating It is connected with heat supply network water return pipeline, the power steam entrance of first steam jet ejector is by pipeline and valve with being pressed in steam turbine Cylinder discharge duct connects, and the pump orifice of first steam jet ejector passes through pipeline and valve and turbine low pressure cylinder discharge duct Connection, the jet of first steam jet ejector are connected with the vapour side entrance of first heat exchangers for district heating, and described second steams The power steam entrance of vapour injector is connected by pipeline and valve with Steam Turbine Through IP Admission discharge duct, the second steam spray The pump orifice of emitter is connected with the vapour side outlet of first heat exchangers for district heating.
- 2. exhaust steam of electric power plant waste heat recovery heating system according to claim 1, it is characterised in that：Also add including the second heat supply network Hot device, the water side outlet of first heat exchangers for district heating are connected with the water side entrance of second heat exchangers for district heating, and described second The water side outlet of heat exchangers for district heating is connected with heat supply network water supply line, in the vapour side entrance of second heat exchangers for district heating and steam turbine Cylinder pressure discharge duct connects, and the hydrophobic outlet of second heat exchangers for district heating passes through pipeline, water seal and valve and the described first heat The vapour side connection of net heater.
- 3. exhaust steam of electric power plant waste heat recovery heating system according to claim 2, it is characterised in that：Also include pipe type heat transfer Device, the water side entrance of the pipe heat exchanger are connected by pipeline and valve with the heat supply network water return pipeline, the pipe type heat transfer The water side outlet of device is connected by pipeline and valve with the water side entrance of second heat exchangers for district heating, the second steam injection The jet of device is connected with the vapour side entrance of the pipe heat exchanger, and the hydrophobic outlet of the pipe heat exchanger passes through pipeline, water Envelope and valve are connected with condenser hotwell, and the water side entrance of the pipe heat exchanger and water side outlet are provided with valve.
- 4. the exhaust steam of electric power plant waste heat recovery heating system according to Claims 2 or 3, it is characterised in that：Also include hydrophobic change Hot device, the tube-side inlet of the hydrophobic heat exchanger are connected by pipeline and valve with the heat supply network water return pipeline, described hydrophobic to change The tube side outlet of hot device is connected by pipeline and valve with the water side entrance of second heat exchangers for district heating, and first heat supply network adds The hydrophobic outlet of hot device is connected by pipeline, water seal and valve with the shell side inlet of the hydrophobic heat exchanger, the hydrophobic heat exchange The shell-side outlet of device is connected by pipeline, water seal and valve with condenser hotwell, the tube-side inlet and pipe of the hydrophobic heat exchanger Journey outlet is provided with valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720512171.1U CN206803286U (en) | 2017-05-10 | 2017-05-10 | Exhaust steam of electric power plant waste heat recovery heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720512171.1U CN206803286U (en) | 2017-05-10 | 2017-05-10 | Exhaust steam of electric power plant waste heat recovery heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206803286U true CN206803286U (en) | 2017-12-26 |
Family
ID=60739611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720512171.1U Withdrawn - After Issue CN206803286U (en) | 2017-05-10 | 2017-05-10 | Exhaust steam of electric power plant waste heat recovery heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206803286U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989429A (en) * | 2017-05-10 | 2017-07-28 | 程琛 | Exhaust steam of electric power plant waste heat recovery heating system |
-
2017
- 2017-05-10 CN CN201720512171.1U patent/CN206803286U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989429A (en) * | 2017-05-10 | 2017-07-28 | 程琛 | Exhaust steam of electric power plant waste heat recovery heating system |
| CN106989429B (en) * | 2017-05-10 | 2022-08-09 | 程琛 | Power plant exhaust steam waste heat recovery heating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180402 Address after: 201802, No. 4268, No. 2396 South Main Road, Shanghai, Jiading District. A Patentee after: SHANGHAI SURFER ELECTRIC TECHNOLOGY CO.,LTD. Address before: Anhui province Huainan city 232000 National Road, tianjia'an District Village striker 22-1-8 room Patentee before: Cheng Chen |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171226 Effective date of abandoning: 20220809 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20171226 Effective date of abandoning: 20220809 |