CN106761968A - Piping-main scheme back pressure turbine unit style shielding system and heat consumption rate method of testing - Google Patents
Piping-main scheme back pressure turbine unit style shielding system and heat consumption rate method of testing Download PDFInfo
- Publication number
- CN106761968A CN106761968A CN201710083882.6A CN201710083882A CN106761968A CN 106761968 A CN106761968 A CN 106761968A CN 201710083882 A CN201710083882 A CN 201710083882A CN 106761968 A CN106761968 A CN 106761968A
- Authority
- CN
- China
- Prior art keywords
- unit
- steam
- oxygen
- enthalpy
- heat
- 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.)
- Granted
Links
Classifications
-
- 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
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/003—Arrangements for testing or measuring
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention provides a kind of piping-main scheme back pressure turbine unit style shielding system and the heat consumption rate method of testing of single unit；By cutting off the oxygen-eliminating device steam supply of test unit, the oxygen-eliminating device of two units is entered vapour and all provided by another non-test power generator turbine；So that the oxygen-eliminating device of test unit does not just consume the use vapour of the machine, mixed lower water just can be regarded as the heat supply backwater outside test unit to carry out thermal test calculating in the oxygen-eliminating device of test unit；Specific calculation is single unit heat consumption rate=((initial steam enthalpy Enthalpy of Feed Water) * feedwater flow steam discharge enthalpy * steam discharges heat supply users flow+test unit circling water flow rate * backwater enthalpy)/generator power.
Description
Technical field
The invention belongs to energy field, and in particular to a kind of piping-main scheme back pressure turbine unit style shielding system and list
The heat consumption rate method of testing of platform unit.
Background technology
Two back pressure steam turbines are had in certain power plant.Two steam discharges of unit are gone back simultaneously for factory steam outside factory, steam discharge
For two oxygen-eliminating device vapour of unit, heat supply backwater reclaims laggard main pipe unification return unit and enters oxygen-eliminating device.Wherein two machines
The enter vapour, the heat supply backwater into oxygen-eliminating device of group oxygen-eliminating device are connected by main pipe, and can not be isolated, it is impossible to kept
Unit style runs.For this Bus pipe type system that cannot isolate, the thermal performance test for wanting to carry out single unit is not done
Method is realized.
The content of the invention
The purpose of the present invention is exactly to solve how to carry out the thermal performance test problem of single unit, there is provided Yi Zhongmu
Control back pressure turbine unit style shielding system, it can be completely isolated by the synergic system of the back pressure turbine of piping-main scheme
Open, so as to the thermal performance for carrying out single unit is tested.To achieve the above object, the present invention is adopted the following technical scheme that：
The oxygen-eliminating device steam supply of test unit is cut off, the oxygen-eliminating device of two units is entered vapour all by another non-test unit vapour
Turbine is provided；So that the oxygen-eliminating device of test unit does not just consume the use vapour of the machine, it is mixed in the oxygen-eliminating device of test unit under
Water just can be regarded as the heat supply backwater outside test unit to carry out thermal test calculating.
The present invention keeps the operation of train unit system, experiment using the partition method of excision test unit to oxygen-eliminating device steam supply
Water carries out thermal test calculating as the heat supply backwater of unit under the oxygen-eliminating device of unit.
The present invention includes following content：
A kind of piping-main scheme back pressure turbine unit style shielding system, described piping-main scheme back pressure turbine unit style every
Include from system：No. 1 boiler, No. 1 steam turbine, No. 2 boilers, No. 2 steam turbines, No. 1 oxygen-eliminating device, No. 2 oxygen-eliminating devices, heat supply pipeline,
Heat user terminal and water return pipeline；
No. 1 boiler, No. 2 boilers respectively with No. 1 steam turbine, No. 2 steam turbines are connected；
No. 1 described Steam Turbine is connected with heat user terminal successively as test unit, No. 1 described Steam Turbine,
Then heat supply water return pipeline is connected, through No. 1 oxygen-eliminating device, be connected No. 1 boiler with test unit water return pipeline；
No. 2 described steam turbines are connected with No. 1 oxygen-eliminating device, No. 2 oxygen-eliminating devices, heat user terminals respectively successively, then connect
Heat supply water return pipeline, through No. 2 oxygen-eliminating devices, be connected No. 2 boilers with No. 2 unit water return pipelines.
A kind of heat consumption rate method of testing of piping-main scheme back pressure turbine single unit, using above-mentioned piping-main scheme back pressure type
Steam turbine unit shielding system, the heat rate calculation method of described single unit is：Single unit heat consumption rate=((new to steam
Vapour enthalpy-Enthalpy of Feed Water) * feedwater flows-steam discharge enthalpy * steam discharges heat supply user flow+test unit circling water flow rate * backwater enthalpys
Value)/generator power；Wherein ((initial steam enthalpy-Enthalpy of Feed Water) * feedwater flows are to calculate the i.e. system heat absorption of boiler thermal discharge
Amount, water enters boiler, is done work by boiler, discharges vapours；Steam discharge enthalpy * steam discharge heat supply user flows are computing system discharges
Heat, test unit circling water flow rate * backwater enthalpies are the heats of return system, and total adding up is the heat of system consumption,
It is exactly unit heat consumption rate (power of the consumption that often generates a kilowatt that heat consumption rate refers to) divided by total power.
The beneficial effect of patent of the present invention：
1st, easily realize, principle is simple.
2nd, after isolation of system, it is easy to heating power data to calculate.
Single unit heat consumption rate=((initial steam enthalpy-Enthalpy of Feed Water) * feedwater flows-steam discharge enthalpy * steam discharge heat supply users
Flow+test unit circling water flow rate * backwater enthalpy)/generator power.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
Other accompanying drawings are obtained with according to these accompanying drawings.
Fig. 1 is the system schematic of traditional piping-main scheme.
Fig. 2 is piping-main scheme back pressure turbine unit style shielding system schematic diagram of the invention.
Specific embodiment
With reference to embodiment, the present invention is described in further detail, following examples be explanation of the invention and
The invention is not limited in following examples.
Embodiment 1：
As shown in Fig. 2 the invention provides a kind of piping-main scheme back pressure turbine unit style shielding system, including：No. 1 pot
Stove, No. 1 steam turbine, No. 2 boilers, No. 2 steam turbines, No. 1 oxygen-eliminating device, No. 2 oxygen-eliminating devices, heat supply pipeline, heat user terminal and backwater
Pipeline；No. 1 boiler, No. 2 boilers respectively with No. 1 steam turbine, No. 2 steam turbines are connected；No. 1 Steam Turbine as test unit, No. 1
Steam Turbine is connected with heat user terminal successively, heat supply water return pipeline is then connected, through No. 1 oxygen-eliminating device, with test unit backwater
Pipeline is connected and removes No. 1 boiler；
No. 2 steam turbines are connected with No. 1 oxygen-eliminating device, No. 2 oxygen-eliminating devices, heat user terminals respectively successively, then connect heat supply and return
Waterpipe, through No. 2 oxygen-eliminating devices, be connected No. 2 boilers with No. 2 unit water return pipelines, (No. 1 boiler and No. 2 boilers in accompanying drawing 2
Do not draw), its connected mode is pipeline connection.
Using above-mentioned piping-main scheme back pressure turbine unit style shielding system, the heat rate calculation method of single unit
For：Single unit heat consumption rate=((initial steam enthalpy-Enthalpy of Feed Water) * feedwater flows-steam discharge enthalpy * steam discharge heat supply users flow+
Test unit circling water flow rate * backwater enthalpy)/generator power；Wherein ((initial steam enthalpy-Enthalpy of Feed Water) * feedwater flows are meters
It is system caloric receptivity to calculate boiler thermal discharge, and water enters boiler, is done work by boiler, discharges vapours；Steam discharge enthalpy * steam discharge heat supplies
Customer flow is the heat of computing system discharge, and test unit circling water flow rate * backwater enthalpies are the heats of return system, and total adds
It is the heat of system consumption to get up, and is exactly unit heat consumption rate divided by total power；Specific data are as follows：
((3474.98-930.72)*417174.67-2987.11*359924.07+358147*604.59)/53908.29
=3824.44.
Enthalpy unit：kj/kg；Flux unit：kg/h；Power unit：kW；Heat consumption rate unit：kJ/kW.h
Furthermore, it is necessary to explanation, the specific embodiment described in this specification, is named the shape of its parts and components
Title etc. can be with difference.The equivalent or simple change that all constructions according to described in inventional idea of the present invention, feature and principle are done, wraps
Include in the protection domain of patent of the present invention.Those skilled in the art can be to described specific implementation
Example is made various modifications or supplement or is substituted using similar mode, without departing from structure of the invention or surmounts this
Scope as defined in the claims, all should belong to protection scope of the present invention.
Claims (2)
1. a kind of piping-main scheme back pressure turbine unit style shielding system, it is characterised in that：Described piping-main scheme back pressure type steam turbine
Machine unit style shielding system includes：No. 1 boiler, No. 1 steam turbine, No. 2 boilers, No. 2 steam turbines, No. 1 oxygen-eliminating device, No. 2 oxygen-eliminating devices,
Heat supply pipeline, heat user terminal and water return pipeline；
No. 1 boiler, No. 2 boilers respectively with No. 1 steam turbine, No. 2 steam turbines are connected；
No. 1 described Steam Turbine is connected as test unit, No. 1 described Steam Turbine steam discharge with heat user terminal, then
Connection heat supply water return pipeline, through No. 1 oxygen-eliminating device, be connected No. 1 boiler with test unit water return pipeline；
No. 2 described turbine discharges are connected with No. 1 oxygen-eliminating device, No. 2 oxygen-eliminating devices respectively, heat user terminal is connected, and then connect
Heat supply water return pipeline, through No. 2 oxygen-eliminating devices, be connected No. 2 boilers with No. 2 unit water return pipelines.
2. a kind of heat consumption rate method of testing of piping-main scheme back pressure turbine single unit, it is characterised in that：Using claim 1
Described piping-main scheme back pressure turbine unit style shielding system, the heat consumption rate method of testing of described single unit is：Separate unit
Unit heat consumption rate=((initial steam enthalpy-Enthalpy of Feed Water) * feedwater flows-steam discharge enthalpy * steam discharges heat supply user flow+testing machine
Group circling water flow rate * backwater enthalpy)/generator power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710083882.6A CN106761968B (en) | 2017-02-16 | 2017-02-16 | A kind of heat consumption rate test method of piping-main scheme back pressure turbine single unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710083882.6A CN106761968B (en) | 2017-02-16 | 2017-02-16 | A kind of heat consumption rate test method of piping-main scheme back pressure turbine single unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106761968A true CN106761968A (en) | 2017-05-31 |
| CN106761968B CN106761968B (en) | 2018-08-07 |
Family
ID=58957972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710083882.6A Active CN106761968B (en) | 2017-02-16 | 2017-02-16 | A kind of heat consumption rate test method of piping-main scheme back pressure turbine single unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106761968B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109187036A (en) * | 2018-08-06 | 2019-01-11 | 大唐东北电力试验研究院有限公司 | A kind of piping-main scheme back pressure turbine main steam flow calculation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH094416A (en) * | 1995-06-20 | 1997-01-07 | Mitsubishi Heavy Ind Ltd | Steam system separation control method for multishaft combined plant |
| US20100074572A1 (en) * | 2008-09-24 | 2010-03-25 | General Electric Company | Fiber optic sensing device and method |
| CN102734789A (en) * | 2011-03-31 | 2012-10-17 | 中国电力工程顾问集团华东电力设计院 | A Thermal system with two deaerators |
| CN202954856U (en) * | 2012-12-14 | 2013-05-29 | 河北前进钢铁集团有限公司 | System for improving afterheat power generation running efficiency |
| CN206608217U (en) * | 2017-02-16 | 2017-11-03 | 华电电力科学研究院 | A kind of piping-main scheme back pressure turbine unit style shielding system |
-
2017
- 2017-02-16 CN CN201710083882.6A patent/CN106761968B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH094416A (en) * | 1995-06-20 | 1997-01-07 | Mitsubishi Heavy Ind Ltd | Steam system separation control method for multishaft combined plant |
| US20100074572A1 (en) * | 2008-09-24 | 2010-03-25 | General Electric Company | Fiber optic sensing device and method |
| CN102734789A (en) * | 2011-03-31 | 2012-10-17 | 中国电力工程顾问集团华东电力设计院 | A Thermal system with two deaerators |
| CN202954856U (en) * | 2012-12-14 | 2013-05-29 | 河北前进钢铁集团有限公司 | System for improving afterheat power generation running efficiency |
| CN206608217U (en) * | 2017-02-16 | 2017-11-03 | 华电电力科学研究院 | A kind of piping-main scheme back pressure turbine unit style shielding system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109187036A (en) * | 2018-08-06 | 2019-01-11 | 大唐东北电力试验研究院有限公司 | A kind of piping-main scheme back pressure turbine main steam flow calculation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106761968B (en) | 2018-08-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Feng et al. | The development of a thermo-economic evaluation method for solar aided power generation | |
| CN107437436B (en) | It is able to carry out the secondary circuit energy consumption simulation test device and method of power regulation | |
| CN204552846U (en) | A kind of back pressure steam turbines utilization system | |
| CN206608217U (en) | A kind of piping-main scheme back pressure turbine unit style shielding system | |
| CN106761968B (en) | A kind of heat consumption rate test method of piping-main scheme back pressure turbine single unit | |
| CN202693508U (en) | System for testing efficiency of pipeline of thermal power generating unit | |
| CN206409276U (en) | A kind of compressed-air energy-storage system | |
| CN106762115A (en) | A kind of co-generation unit with compensation function | |
| Wang et al. | A decomposed solution of multi-energy flow in regional integrated energy systems considering operational constraints | |
| CN217844064U (en) | Nuclear energy heat supply and steam supply coupling system | |
| CN207179607U (en) | A kind of residual heat integrative of steel plant utilizes electricity generation system | |
| CN203488273U (en) | Small-scale gas electrical generation waste heat utilization device | |
| CN207406389U (en) | A kind of biomass high-temperature super-pressure reheating generating set quickly opens furnace system | |
| Paro et al. | A methodology for biomass cogeneration plants overall energy efficiency calculation and measurement—A basis for generators real time efficiency data disclosure | |
| CN104596108A (en) | Water tank type heating system | |
| CN204609966U (en) | A kind of gas-steam combined cycle set with draining system | |
| Zhu et al. | Analysis of solar contribution evaluation method in solar aided coal-fired power plants | |
| CN204420961U (en) | A kind of high-sulfur fume afterheat electricity generation boiler anti-low-temperature corrosion device | |
| Lennermo et al. | Feed-in from distributed solar thermal plants in district heating systems | |
| CN206257719U (en) | The system that heating network accumulation of energy improves thermal power plant's operational flexibility | |
| CN204627797U (en) | A kind of gas electricity unit blending LNG fuel apparatus | |
| CN204610066U (en) | Integration combustion gas cogeneration cooling heating system | |
| CN208587897U (en) | A kind of integration energy conserving system of gas-steam boiler and gas electricity generator | |
| CN204114916U (en) | A kind of intelligent heat supply device | |
| CN203835542U (en) | Natural gas heating system adopting seawater heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |