CN206539380U - A kind of thermal power plant's back pressure turbine steam discharge drives heat pump waste heat recovery system - Google Patents
A kind of thermal power plant's back pressure turbine steam discharge drives heat pump waste heat recovery system Download PDFInfo
- Publication number
- CN206539380U CN206539380U CN201720186983.1U CN201720186983U CN206539380U CN 206539380 U CN206539380 U CN 206539380U CN 201720186983 U CN201720186983 U CN 201720186983U CN 206539380 U CN206539380 U CN 206539380U
- Authority
- CN
- China
- Prior art keywords
- steam
- back pressure
- turbine
- condenser
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002918 waste heat Substances 0.000 title claims abstract description 13
- 238000011084 recovery Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 230000005611 electricity Effects 0.000 claims abstract description 8
- 230000005619 thermoelectricity Effects 0.000 claims abstract description 6
- 210000004907 gland Anatomy 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 4
- 230000008676 import Effects 0.000 claims description 3
- 239000003245 coal Substances 0.000 description 3
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010795 Steam Flooding Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The utility model is related to residual neat recovering system, and in particular to a kind of thermal power plant's back pressure turbine steam discharge drives heat pump waste heat recovery system.To solve the problem of prior art is present, the utility model provides the apparatus system that a kind of utilization thermal power plant back pressure turbine HTHP steam discharge drives heat pump waste heat recovery.Specifically, the technical scheme used for：A kind of thermal power plant's back pressure turbine steam discharge drives heat pump waste heat recovery system, including back pressure turbine, steam turbine, compressor, condenser, evaporator, vapor heat exchanger, wherein, the steam turbine, compressor, condenser, evaporator composition source pump；The stage casing steam drain of back pressure turbine is connected to the steam inlet of steam turbine, and the back pressure steam drain of the steam turbine connects the Heating medium of vapor heat exchanger, and the heating agent outlet of vapor heat exchanger is steam condensate；The delivery port of condenser connects the water inlet of vapor heat exchanger；The gland heater outlet of water inlet connection thermoelectricity factory owner's electricity generation system of the condenser.
Description
Technical field
The utility model is related to afterheat generating system, and in particular to a kind of thermal power plant's back pressure turbine steam discharge drives heat pump
Residual neat recovering system.
Background technology
The pumped vacuum systems of current Steam Turbine in Fire Power Plant condenser, condenser or steam exhaust device is using mechanical
Water ring vacuum pump or water jet air ejector.The circulating water temperature of vavuum pump and exhaust capacity are closely bound up, with the reduction of water temperature,
The exhaust capacity of vavuum pump is stepped up, and existing fired power generating unit largely uses open type or closed-type circulating cooling water, temperature
It is higher, cause vavuum pump suction capactity to decline, therefore, it is high, the low influence generating efficiency of vacuum that generally existing turbine back pressure
Phenomenon.LP Turbine Exhaust Pressure Correction Curves, which are provided, according to steam turbine can be seen that condenser vacuum reduction 1kPa, steam turbine power generation effect
Rate can improve 1~2%, and more than 0.6 gram is reduced per kWh equivalent to gross coal consumption rate.Although the factor for influenceing condenser vacuum is many
Aspect, but because temperature is demarcated in the design that the inflow temperature of power plant vavuum pump is generally higher than vavuum pump, have a strong impact on vavuum pump
Exhaust capacity, directly affect the vacuum of condenser, and cause vacuum pump cavitation to a certain extent, shorten service life of vacuum pump；Together
When evacuation tracheae between condenser to vavuum pump in, vapor partial pressure height be also influence one of condenser vacuum it is important because
Element.
There is the situation of high back pressure in back pressure turbine, can cause the decline of generated energy or power output, due to corresponding
Exhaust temperature rise, can cause turbine discharge part thermal expansion and thermal stress aggravation, unit is likely to result in when serious and is shaken
It is dynamic to be worth exceeded or sound friction, so as to cause accident.
Utility model content
To solve the problem of prior art is present, the utility model provides a kind of high using thermal power plant's back pressure turbine
Warm high pressure steam discharge drives the apparatus system of heat pump waste heat recovery.
Specifically, the technical scheme used for：
A kind of thermal power plant's back pressure turbine steam discharge drives heat pump waste heat recovery system, including back pressure turbine, steamer
Machine, compressor, condenser, evaporator, vapor heat exchanger, wherein,
The steam turbine, compressor, condenser, evaporator composition source pump；
The stage casing steam drain of back pressure turbine is connected to the steam inlet of steam turbine, the back pressure steam drain of the steam turbine
The Heating medium of vapor heat exchanger is connected, the heating agent outlet of vapor heat exchanger is steam condensate；The delivery port connection of condenser
The water inlet of vapor heat exchanger；The gland heater outlet of water inlet connection thermoelectricity factory owner's electricity generation system of the condenser.
The utility model by the way that the Back-pressure steam of the too high back pressure turbine of the back pressure in electricity generation system is discharged, as
The driving steam of steam turbine in source pump, driving source pump operation, absorbs the heat in cold water circulating system, is used for
The cryogenic condensation water that gland heater in main electricity generation system is discharged is preheated, the condensed water after preheating enters steam
In heat exchanger, meanwhile, in source pump the back pressure steam discharge of steam turbine due to temperature it is still higher, then into right in vapor heat exchanger
Pre-warmed condensed water is exchanged heat, so as to obtain the condensed water of high temperature.
This partial condensation water can be transferred to corresponding production link, such as low-pressure heater according to power plant's needs of production
Import or export.
69 DEG C of calculating are first to heat to by by 1200t/h, 26 DEG C of solidifying water, its total heating capacity is 60MW, and the waste heat of recovery is about
For 50.77MW, driving steam is 11.23MW（Stage casing steam discharge from unit, 0.8MPa, 336.3 DEG C）, about 120t/h.Heat pump
The back pressure steam discharge of unit driving steam turbine（0.2MPa, 200 DEG C, 120t/h）Continue heat-setting water to 126 DEG C, heating amount
79.5MW.Total heating amount is 62MW+79.5MW=139.5MW, wherein the waste heat reclaimed is 50.77MW；1200t/h can be coagulated
Bear water and be heated to 126 DEG C by 26 DEG C.
Recovery waste heat 50.77MW, is calculated by boiler efficiency 92%, mark coal 6.7t/h can be saved, by 350g/kWh coal consumption meters
Calculate, generated energy power about 19142kW can be increased.
The utility model has the advantages that：The utility model uses steam turbine driven heat pump system, profit
With back pressure turbine intermediate pressure section steam discharge, to drive the steam turbine of heat pump, and then the energy in cooling circulating water system is reclaimed.Will
The original steam discharge for being used for directly heating the steam turbine intermediate pressure section of user's water, in its enthalpy also higher interval of drawing gas, is first used for
Drive source pump.And conventional heat pump is all by driven by power, and electric power is as two grades of energy, and its price is higher, drives
The power consumption of dynamic source pump is larger, causes costly, and secondary can produce a large amount of cooling heats.Steam drive source pump subtracts
Lack the loss of steam-electric power and the transmission ＆ distribution loss of electric power, substantially increase the utilization rate of the energy.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure, 1 is back pressure turbine, and 2 be steam turbine, and 3 be compressor, and 4 be condenser, and 5 be evaporator, and 6 be steam
Heat exchanger.
Embodiment
The following examples can make those skilled in the art that the utility model is more fully understood, but not in any way
Limit the utility model.
Embodiment 1
A kind of thermal power plant's back pressure turbine steam discharge drives heat pump waste heat recovery system, including back pressure turbine 1, steamer
Machine 2, compressor 3, condenser 4, evaporator 5, vapor heat exchanger 6, wherein,
The steam turbine 2, compressor 3, condenser 4, the composition source pump of evaporator 5；
The stage casing steam drain of back pressure turbine 1 is connected to the steam inlet of steam turbine 2, the back pressure row of the steam turbine 2
Steam ports connects the Heating medium of vapor heat exchanger 6, and the heating agent outlet of vapor heat exchanger is steam condensate；The water outlet of condenser 4
The water inlet of mouth connection vapor heat exchanger 6；The water inlet of the condenser 4 connects the gland heater of thermoelectricity factory owner's electricity generation system
Outlet.
The import of the low-pressure heater of delivery port connection thermoelectricity factory owner's electricity generation system of the vapor heat exchanger 6.
More than, embodiment only of the present utility model, but protection domain of the present utility model is not limited thereto,
Any one skilled in the art the change that can readily occur in or replaces in the technical scope that the utility model is disclosed
Change, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with claim
Protection domain is defined.
Claims (2)
1. a kind of thermal power plant's back pressure turbine steam discharge drives heat pump waste heat recovery system, it is characterised in that including back pressure type vapour
Turbine（1）, steam turbine（2）, compressor（3）, condenser（4）, evaporator（5）, vapor heat exchanger（6）, wherein, the steam turbine
（2）, compressor（3）, condenser（4）, evaporator（5）Constitute source pump；Back pressure turbine（1）The connection of stage casing steam drain
To steam turbine（2）Steam inlet, the steam turbine（2）Back pressure steam drain connection vapor heat exchanger（6）Heating medium, steam
The heating agent outlet of vapour heat exchanger is steam condensate；Condenser（4）Delivery port connection vapor heat exchanger（6）Water inlet；Institute
State condenser（4）Water inlet connection thermoelectricity factory owner's electricity generation system gland heater outlet.
2. a kind of thermal power plant's back pressure turbine steam discharge driving heat pump waste heat recovery system according to claim 1, it is special
Levy and be, the vapor heat exchanger（6）Delivery port connection thermoelectricity factory owner's electricity generation system low-pressure heater import.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720186983.1U CN206539380U (en) | 2017-02-28 | 2017-02-28 | A kind of thermal power plant's back pressure turbine steam discharge drives heat pump waste heat recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720186983.1U CN206539380U (en) | 2017-02-28 | 2017-02-28 | A kind of thermal power plant's back pressure turbine steam discharge drives heat pump waste heat recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206539380U true CN206539380U (en) | 2017-10-03 |
Family
ID=59946781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720186983.1U Expired - Fee Related CN206539380U (en) | 2017-02-28 | 2017-02-28 | A kind of thermal power plant's back pressure turbine steam discharge drives heat pump waste heat recovery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206539380U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113540619A (en) * | 2021-08-11 | 2021-10-22 | 西安西热锅炉环保工程有限公司 | Water cooling system of energy storage system of thermal power plant and working method |
-
2017
- 2017-02-28 CN CN201720186983.1U patent/CN206539380U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113540619A (en) * | 2021-08-11 | 2021-10-22 | 西安西热锅炉环保工程有限公司 | Water cooling system of energy storage system of thermal power plant and working method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102678206B (en) | Thermodynamic system for combined heat recovery of power plant | |
| CN104481611A (en) | Dead steam waste heat recovery system based on large temperature difference heat exchange technology | |
| CN103016083A (en) | Back pressure and straight condensing switching heat supply system | |
| CN104832290A (en) | Distributed type energy resource flue gas waste heat deep utilization system | |
| CN107905897A (en) | Gas turbine cycle flue gas waste heat recovery and inlet gas cooling association system and method | |
| CN101832156A (en) | Condensation heat recovering and central heating supply system of power plant direct air cooling unit | |
| CN209308763U (en) | A kind of air-cooled electricity generation system containing internal function of recovering waste heat | |
| CN108036384A (en) | A kind of energy source station system and operation method based on thermoelectricity unit steam extraction | |
| CN207178041U (en) | A kind of OTC cooling systems for Combined cycle gas-steam turbine | |
| CN204421140U (en) | The big thermoelecrtic unit exhaust steam residual heat recovery system that a kind of low vacuum is combined with heat pump techniques | |
| CN103233821B (en) | A kind of air temperature regulating system | |
| CN208040541U (en) | Gas turbine cycle flue gas waste heat recovery and inlet gas cooling association system | |
| CN1924303A (en) | Heat pump condensing type steam power recirculation | |
| CN206539380U (en) | A kind of thermal power plant's back pressure turbine steam discharge drives heat pump waste heat recovery system | |
| CN109751652B (en) | High back pressure and heat pump combined heat supply system of 300MW and above grade wet cooling unit | |
| CN209605253U (en) | 300MW and ratings above wet type cooling unit high back pressure and heat pump united heating system | |
| CN204827562U (en) | Little steam turbine energy cascade utilization system of thermal power plant | |
| CN204704011U (en) | A kind of distributed energy fume afterheat deep exploitation system | |
| CN209399346U (en) | Vapour for Mist heat recovering drags heat pump system | |
| CN104213951B (en) | Waste heat of coke oven is multigroup to utilize system | |
| CN103195577B (en) | Gas turbine air inlet temperature regulating system | |
| CN205858429U (en) | Steam-turbine residual neat recovering system | |
| CN105042666A (en) | Wide-load heat supply energy saving system of back pressure type small turbine driving induced draft fan | |
| CN201671669U (en) | Condensation heat recovering central heating system of direct air cooling unit for power plant | |
| CN105698241B (en) | A kind of method of 150MW high back pressures thermal power plant unit circulation pump of heat-supply network operation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171003 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |