CN209586456U - A kind of steam distribution system based on piping-main scheme different parameters grade unit - Google Patents
A kind of steam distribution system based on piping-main scheme different parameters grade unit Download PDFInfo
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- CN209586456U CN209586456U CN201920348974.7U CN201920348974U CN209586456U CN 209586456 U CN209586456 U CN 209586456U CN 201920348974 U CN201920348974 U CN 201920348974U CN 209586456 U CN209586456 U CN 209586456U
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Abstract
The utility model is a kind of steam distribution system based on piping-main scheme different parameters grade unit, Circulating Fluidized Bed Boiler and superhigh-pressure high-temp circulating fluidized bed boiler, main steam pipe is equipped between two steam pipe lines, main steam pipe is equipped with motor-driven valve one, angie type quick-closing valve, pressure reducing valve and motor-driven valve two, main steam pipe is connected with pressure reducing valve pipe and safety valve pipe between pressure reducing valve and motor-driven valve two, pressure reducing valve pipe is equipped with motor-driven valve three and Pcv valve, safety valve pipe is equipped with safety valve, temperature transmitter and pressure transmitter are equipped on the main steam pipe of pressure reducing valve two sides.The utility model on main steam pipe using multiple motor-driven valves, pressure reducing valve, Pcv valve, angie type quick-closing valve, safety valve and temperature transmitter, pressure transmitter is installed additional, to meet the operation needs of the steam turbine of different initial steam pressures.The utility model is not only met to the needs of different parameters grade steam outside factory, but also increases the flexibility of unit operation, adaptability.
Description
Technical field
The utility model relates to Thermal Power Engineering technical fields, more particularly to one kind to be based on piping-main scheme different parameters grade unit
Steam distribution system.
Background technique
With the foundation of various regions industry park, demand of the garden enterprise to heat supply, steam supply is increasing, and garden is all established substantially
The matched thermo-power station for heat supply steam supply.Currently, to outside factory heat supply steam supply thermo-power station, it is identical to be designed to piping-main scheme greatly
The machine furnace of parameter configures.And some garden enterprises are big to pressure demand parameter difference, the thermo-power station of these gardens need to be original high
Superhigh-pressure high-temp unit is extended on warm high pressure piping-main scheme crew base, but existing steam distribution system is not only unable to satisfy outside factory to not
The needs of same parameter grade steam, and the unit method of operation is relatively fixed, flexibility is poor.
Summary of the invention
The utility model aims to solve the problem that the deficiencies in the prior art, and provides a kind of based on piping-main scheme different parameters grade unit
Steam distribution system.
In order to achieve the above object, the utility model adopts the following technical solutions:
A kind of steam distribution system based on piping-main scheme different parameters grade unit, including Circulating Fluidized Bed Boiler and
The output end of superhigh-pressure high-temp circulating fluidized bed boiler, Circulating Fluidized Bed Boiler passes through steam pipe line and high temperature and pressure
The steam input terminal of steam turbine is connected, and the output end of superhigh-pressure high-temp circulating fluidized bed boiler passes through steam pipe line and high temperature superelevation
It presses the steam input terminal of steam turbine to be connected, main steam pipe is equipped between two steam pipe lines, the both ends of main steam pipe are distinguished
It is connected to two steam pipe lines, main steam pipe is by high to close high temperature close to one end of superhigh-pressure high-temp circulating fluidized bed boiler
One end of pressure circulating fluidized bed boiler is successively arranged motor-driven valve one, angie type quick-closing valve, pressure reducing valve and motor-driven valve two, main steam pipe
Pressure reducing valve pipe and safety valve pipe are connected between pressure reducing valve and motor-driven valve two, pressure reducing valve pipe is equipped with motor-driven valve three and Pcv valve, peace
Full valve pipe is equipped with safety valve, is equipped with temperature transmitter and pressure transmitter on the main steam pipe of pressure reducing valve two sides.
Preferably, main steam pipe is equipped with motor-driven valve four between motor-driven valve one and angie type quick-closing valve.
Preferably, main steam pipe is equipped between motor-driven valve four and motor-driven valve one and reserves spare pipe, reserves spare pipe
Plug at end part has plug.
Preferably, motor-driven valve one, motor-driven valve two and motor-driven valve four are parallel with bypass valve.
Preferably, valve is equipped on two steam pipe lines, a valve is located at steam pipe line and connect with main steam pipe
Between point and High temperature and High pressure Steam Turbine；Another valve is located at steam pipe line and main steam pipe tie point and superhigh-pressure high-temp vapour
Between turbine.
Preferably, the import rated pressure of Pcv valve is 13.73MPa, and outlet rated pressure is 9.81MPa, the specified temperature of import
Degree is 540 DEG C, nominal steam flow 150t/h.
It installs multiple motor-driven valves additional on main steam pipe the beneficial effects of the utility model are: the utility model is used, subtract
Pressure valve, Pcv valve, angie type quick-closing valve, safety valve and temperature transmitter, pressure transmitter, to meet the vapour of different initial steam pressures
The operation of turbine needs.The utility model is not only met to the needs of different parameters grade steam outside factory, but also increases machine
The flexibility of group operation, adaptability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
In figure: 1- Circulating Fluidized Bed Boiler；2- superhigh-pressure high-temp circulating fluidized bed boiler；3- high temperature and pressure vapour
Turbine；4- superhigh-pressure high-temp steam turbine；5- motor-driven valve one；6- angie type quick-closing valve；7- pressure reducing valve；8- motor-driven valve two；9- motor-driven valve
Three；10-PCV valve；11- safety valve；12- temperature transmitter；13- pressure transmitter；14- motor-driven valve four；15- reserves spare pipe；
16- bypass valve；
It is described in detail below with reference to the embodiments of the present invention referring to attached drawing.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples:
As shown, a kind of steam distribution system based on piping-main scheme different parameters grade unit, including high temperature and pressure recycle stream
Fluidized bed boiler 1 and superhigh-pressure high-temp circulating fluidized bed boiler 2, the output end of Circulating Fluidized Bed Boiler 1 pass through steam
Pipeline is connected with the steam input terminal of High temperature and High pressure Steam Turbine 3, and the output end of superhigh-pressure high-temp circulating fluidized bed boiler 2 passes through steaming
Steam pipe line is connected with the steam input terminal of superhigh-pressure high-temp steam turbine 4, and main steam pipe, main steaming are equipped between two steam pipe lines
The both ends of vapour main pipe are connected to two steam pipe lines respectively, and main steam pipe is by close to superhigh-pressure high-temp circulating fluidized bed boiler 2
One end be successively arranged motor-driven valve 1, angie type quick-closing valve 6, pressure reducing valve to close to one end of Circulating Fluidized Bed Boiler 1
7 and motor-driven valve 28, main steam pipe pressure reducing valve pipe and safety valve pipe are connected between pressure reducing valve 7 and motor-driven valve 28, depressurize
Valve pipe is equipped with motor-driven valve 39 and Pcv valve 10, and safety valve pipe is equipped with safety valve 11, on the main steam pipe of 7 two sides of pressure reducing valve
Equipped with temperature transmitter 12 and pressure transmitter 13.
Preferably, main steam pipe is equipped with motor-driven valve 4 14 between motor-driven valve 1 and angie type quick-closing valve 6.
Preferably, main steam pipe is equipped between motor-driven valve 4 14 and motor-driven valve 1 and reserves spare pipe 15, reserves standby
There is plug with 15 plug at end part of pipe.
Preferably, motor-driven valve 1, motor-driven valve 28 and motor-driven valve 4 14 are parallel with bypass valve 16.
Preferably, valve is equipped on two steam pipe lines, a valve is located at steam pipe line and connect with main steam pipe
Between point and High temperature and High pressure Steam Turbine 3；Another valve is located at steam pipe line and main steam pipe tie point and superhigh-pressure high-temp
Between steam turbine 4.
Preferably, the import rated pressure of Pcv valve 10 is 13.73MPa, and outlet rated pressure is 9.81MPa, and import is specified
Temperature is 540 DEG C, nominal steam flow 150t/h.
When the utility model is used, the specific steps are as follows:
Motor-driven valve 1, motor-driven valve 39, motor-driven valve 4 14, angie type quick-closing valve 6 and pressure reducing valve 7 are opened first, heating coil is extremely
Before motor-driven valve 28, abundant heating coil is carried out to main steam pipe；
It is adjusted further according to aperture of the reading of temperature transmitter 12 and pressure transmitter 13 in steam main pipe to pressure reducing valve 7
Whole, guarantee 13 range of readings of high side pressure transmitter is 9.2~9.6MPa, to meet 3 rated steam inlet of High temperature and High pressure Steam Turbine
Pressure.
Preferably, as high side pressure continues to increase, then Pcv valve 10 reaches in the reading of high side pressure transmitter 13
9.8MPa speed per hour is opened, to reduce the pressure value in main steam pipe.
Preferably, as high side pressure continues to increase, then angie type quick-closing valve 6 is reached in the reading of high side pressure transmitter 13
It is closed to 10MPa speed per hour, extra high pressure steam is truncated.
Preferably, as high side pressure still increases, then safety valve 11 reaches in the reading of high side pressure transmitter 13
It is acted when 10.3MPa, to protect equipment.
The utility model uses and installs multiple motor-driven valves, Pcv valve 10, angie type quick-closing valve 6, safety valve additional on main steam pipe
11 and temperature transmitter 12, pressure transmitter 13, to meet the operation needs of the steam turbine of different initial steam pressures.This is practical new
Type is not only met to the needs of different parameters grade steam outside factory, but also increases the flexibility of unit operation, adaptability.
Embodiment one
Motor-driven valve 1, motor-driven valve 39, motor-driven valve 4 14, angie type quick-closing valve 6 and pressure reducing valve 7 are opened first, heating coil is extremely
Before motor-driven valve 28, abundant heating coil is carried out to main steam pipe；
It is adjusted further according to aperture of the reading of temperature transmitter 12 and pressure transmitter 13 in steam main pipe to pressure reducing valve 7
Whole, guarantee 13 range of readings of high side pressure transmitter is 9.2~9.6MPa, to meet 3 rated steam inlet of High temperature and High pressure Steam Turbine
Pressure；High side pressure continues to increase at this time, and Pcv valve 10 reaches 9.8MPa speed per hour in the reading of high side pressure transmitter 13 and opens,
Pressure value in main steam pipe is reduced to normal range (NR).
Embodiment two
Motor-driven valve 1, motor-driven valve 39, motor-driven valve 4 14, angie type quick-closing valve 6 and pressure reducing valve 7 are opened first, heating coil is extremely
Before motor-driven valve 28, abundant heating coil is carried out to main steam pipe；
It is adjusted further according to aperture of the reading of temperature transmitter 12 and pressure transmitter 13 in steam main pipe to pressure reducing valve 7
Whole, guarantee 13 range of readings of high side pressure transmitter is 9.2~9.6MPa, to meet 3 rated steam inlet of High temperature and High pressure Steam Turbine
Pressure；At this point, high side pressure continues to increase, Pcv valve 10 reaches 9.8MPa speed per hour in the reading of high side pressure transmitter 13 and opens,
To reduce the pressure value in main steam pipe, but high side pressure continues to increase, and angie type quick-closing valve 6 is in high side pressure pick-up
The reading of device 13 reaches 10MPa speed per hour pass, and high side pressure is reduced to normal range (NR).
Embodiment three
Motor-driven valve 1, motor-driven valve 39, motor-driven valve 4 14, angie type quick-closing valve 6 and pressure reducing valve 7 are opened first, heating coil is extremely
Before motor-driven valve 28, abundant heating coil is carried out to main steam pipe；
It is adjusted further according to aperture of the reading of temperature transmitter 12 and pressure transmitter 13 in steam main pipe to pressure reducing valve 7
Whole, guarantee 13 range of readings of high side pressure transmitter is 9.2~9.6MPa, to meet 3 rated steam inlet of High temperature and High pressure Steam Turbine
Pressure；At this point, high side pressure continues to increase, Pcv valve 10 reaches 9.8MPa speed per hour in the reading of high side pressure transmitter 13 and opens,
To reduce the pressure value in main steam pipe, but high side pressure continues to increase, and angie type quick-closing valve 6 is in high side pressure pick-up
The reading of device 13 reaches 10MPa speed per hour pass, extra high pressure steam is truncated；But high side pressure still persistently increases, and safety valve 11 is in height
The pressure reading of side pressure power transmitter 13 acts pressure release when reaching 10.3MPa to protect equipment, and high side pressure is reduced to normal range (NR).
The utility model is exemplarily described above in conjunction with attached drawing, it is clear that the utility model specific implementation not by
The limitation of aforesaid way, if the method concept of the utility model and the various improvement of technical solution progress are used, or without
Improvement directly applies to other occasions, both is within the protection scope of the present invention.
Claims (6)
1. a kind of steam distribution system based on piping-main scheme different parameters grade unit, including Circulating Fluidized Bed Boiler (1)
With superhigh-pressure high-temp circulating fluidized bed boiler (2), which is characterized in that the output end of Circulating Fluidized Bed Boiler (1) is logical
Steam pipe line is crossed to be connected with the steam input terminal of High temperature and High pressure Steam Turbine (3), superhigh-pressure high-temp circulating fluidized bed boiler (2) it is defeated
Outlet is connected by steam pipe line with the steam input terminal of superhigh-pressure high-temp steam turbine (4), and master is equipped between two steam pipe lines
Steam main pipe, the both ends of main steam pipe are connected to two steam pipe lines respectively, and main steam pipe close to superhigh-pressure high-temp by following
One end of circulation fluidized bed boiler (2) to one end close to Circulating Fluidized Bed Boiler (1) is successively arranged motor-driven valve one
(5), angie type quick-closing valve (6), pressure reducing valve (7) and motor-driven valve two (8), main steam pipe are located at pressure reducing valve (7) and motor-driven valve two (8)
Between be connected with pressure reducing valve pipe and safety valve pipe, pressure reducing valve pipe is equipped with motor-driven valve three (9) and Pcv valve (10), safety valve pipe are equipped with
Safety valve (11) is equipped with temperature transmitter (12) and pressure transmitter (13) on the main steam pipe of pressure reducing valve (7) two sides.
2. the steam distribution system according to claim 1 based on piping-main scheme different parameters grade unit, which is characterized in that main steaming
Vapour main pipe, which is located between motor-driven valve one (5) and angie type quick-closing valve (6), is equipped with motor-driven valve four (14).
3. the steam distribution system according to claim 2 based on piping-main scheme different parameters grade unit, which is characterized in that main steaming
Vapour main pipe is equipped between motor-driven valve four (14) and motor-driven valve one (5) and reserves spare pipe (15), reserves spare pipe (15) end
Closure has plug.
4. the steam distribution system according to claim 3 based on piping-main scheme different parameters grade unit, which is characterized in that electronic
Valve one (5), motor-driven valve two (8) and motor-driven valve four (14) are parallel with bypass valve (16).
5. the steam distribution system according to claim 4 based on piping-main scheme different parameters grade unit, which is characterized in that two
Valve is equipped on steam pipe line, a valve is located at steam pipe line and main steam pipe tie point and High temperature and High pressure Steam Turbine
(3) between；Another valve is located between steam pipe line and main steam pipe tie point and superhigh-pressure high-temp steam turbine (4).
6. the steam distribution system according to claim 5 based on piping-main scheme different parameters grade unit, which is characterized in that PCV
The import rated pressure of valve (10) is 13.73MPa, and outlet rated pressure is 9.81MPa, and import rated temperature is 540 DEG C, specified
Steam flow 150t/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920348974.7U CN209586456U (en) | 2019-03-19 | 2019-03-19 | A kind of steam distribution system based on piping-main scheme different parameters grade unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920348974.7U CN209586456U (en) | 2019-03-19 | 2019-03-19 | A kind of steam distribution system based on piping-main scheme different parameters grade unit |
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| CN209586456U true CN209586456U (en) | 2019-11-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826680A (en) * | 2019-03-19 | 2019-05-31 | 中国能源建设集团华北电力试验研究院有限公司 | A kind of steam distribution system and application method based on piping-main scheme different parameters grade unit |
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2019
- 2019-03-19 CN CN201920348974.7U patent/CN209586456U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826680A (en) * | 2019-03-19 | 2019-05-31 | 中国能源建设集团华北电力试验研究院有限公司 | A kind of steam distribution system and application method based on piping-main scheme different parameters grade unit |
| CN109826680B (en) * | 2019-03-19 | 2023-08-08 | 中国能源建设集团华北电力试验研究院有限公司 | Steam distribution system based on mother pipe control of different parameter grade units and application method |
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