CN207990592U - A kind of neighbour's machine condensed water interacted system - Google Patents
A kind of neighbour's machine condensed water interacted system Download PDFInfo
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- CN207990592U CN207990592U CN201820230711.1U CN201820230711U CN207990592U CN 207990592 U CN207990592 U CN 207990592U CN 201820230711 U CN201820230711 U CN 201820230711U CN 207990592 U CN207990592 U CN 207990592U
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Abstract
The utility model discloses a kind of adjacent machine condensed water interacted systems, including two-way unit and two-way condensing water conduit；Include that sequentially connected two low-pressure heaters and an oxygen-eliminating device are exported by condensate pump per road unit；Condensing water conduit is by the exit of two low-pressure heaters of unit, condensed water bypass is drawn by pneumatic control valve respectively, on the entrance pipe for the oxygen-eliminating device that the bypass of two condensed waters is connected to another way unit by an electric gate valve and a non-return valve after converging.The utility model puts into operation in unit cold start, substitutes the boiler cold-state flushing water for coagulating moisturizing and being heated through adjacent machine auxiliary steam in oxygen-eliminating device with the condensed water of neighbouring operating unit, is directly entered boiler and carries out water.All fired power generating units are can be applied to, the unit starting time can be significantly reduced and start energy consumption.
Description
Technical field
The utility model belongs to energy saving for power plants consumption reduction field, is related to a kind of adjacent machine condensed water interacted system.
Background technology
National capacity of installed generator rapid growth in recent years, overall rich, the exhausted major region installation surplus of power supply and demand situation,
Fired power generating unit annual utilization hours are in downward trend year by year.Ease up situation during domestic economy speedup totality presentation is steady, predicts future
Whole society's power demand is still in sluggish situation in several years.Generation of electricity by new energy such as photovoltaic and photothermal, wind-powered electricity generation, water power etc. grow rapidly with
And policy guide, the problems such as fired power generating unit certainly will be by faces deep peak regulation, long-term outage.For this angle, thermal motor
Group cold start frequency and total degree will greatly increase.Energy-saving potential is excavated in full factory's every field, links and is put to reality
It applies, is the basic principle that the following energy conservation must be adhered to.
The unit of (generally more than 150 hours or more) longer to idle time, should carry out cleaning boiler.Cleaning boiler is main
Purpose is the iron oxide etc. that impurity, salinity and the corrosion that cleaning is deposited on heating surface generate.It unit starting initial stage, first will be right
Low pressure stage pipeline is cleaned, and the cleaning of condensation supply line and low-pressure heating pipe section is included；Then deaerated feedwater is carried out
And the cleaning of hyperbaric heating pipe section；The cleaning of boiler can be carried out after this section of water quality cleaning is met the requirements.It is general next
It says, completing cold conditions flushing, (water source is the high temperature condensation that condensed water moisturizing is heated in oxygen-eliminating device through adjacent machine auxiliary steam to Subcritical Units
Water) after can carry out boiler water filling；Supercritical unit ignition of the boiler after completing cold conditions and rinsing switchs to hot flushing, into boiler
Water source be still condensed water in high temperature that solidifying moisturizing is heated in oxygen-eliminating device through adjacent machine auxiliary steam.(cold again or four sections of pumpings as it can be seen that adjacent machine auxiliary steam
Vapour) always through during entire unit starting, the duration from boiler water filling to this load of startup unit tape base, holds for heating
The continuous time is long and consumption is larger.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the above-mentioned prior arts provides a kind of adjacent machine condensed water and mutually contacts
System, the system can effectively reduce thermal power plant's cold start time and start energy consumption.
In order to achieve the above objectives, the utility model is achieved using following technical scheme：
A kind of neighbour's machine condensed water interacted system, including two-way unit and two-way condensing water conduit；Include per road unit by
Condensate pump exports sequentially connected several low-pressure heaters and an oxygen-eliminating device；Condensing water conduit is two low pressure by unit
The exit of heater, draws condensed water bypass by a pneumatic control valve respectively, and two condensed water bypasses are led to after converging
It crosses on the entrance pipe for the oxygen-eliminating device that an electric gate valve and a non-return valve are connected to another way unit.
The utility model, which further improves, to be：
Two groups of units include the first unit and the second unit；First unit adds including the first low-pressure heater, the second low pressure
Hot device and the first oxygen-eliminating device；Second unit includes third low-pressure heater, the 4th low-pressure heater and the second oxygen-eliminating device；First is low
Pressure heater, the second low-pressure heater and the first oxygen-eliminating device are sequentially connected, third low-pressure heater, the 4th low-pressure heater and the
Two oxygen-eliminating devices are sequentially connected.
The condensing water conduit of first unit include the first pneumatic control valve, the second pneumatic control valve, the first electric gate valve and
First non-return valve；The entrance of first pneumatic control valve is connected with the outlet of the first low-pressure heater, and the second pneumatic control valve enters
Mouth is connected with the outlet of the second low-pressure heater, and the outlet of the first pneumatic control valve and the second pneumatic control valve is connected to first
On the entrance of electric gate valve, the outlet of the first electric gate valve is connected by the first non-return valve with the entrance of the second oxygen-eliminating device.
The condensing water conduit of second unit include third pneumatic control valve, the 4th pneumatic control valve, the second electric gate valve and
Second non-return valve；The entrance of third pneumatic control valve is connected with the outlet of third low-pressure heater, and the 4th pneumatic control valve enters
Mouth is connected with the outlet of the 4th low-pressure heater, and the outlet of third pneumatic control valve and the 4th pneumatic control valve is connected to second
On the entrance of electric gate valve, the outlet of the second electric gate valve is connected by the second non-return valve with the entrance of the first oxygen-eliminating device；
Unit during normal operation, the first pneumatic control valve, the second pneumatic control valve, third pneumatic control valve, the 4th gas
Dynamic regulating valve, the first electric gate valve, the second electric gate valve, the first non-return valve and the second non-return valve are closed, the first unit and second
The boiler circuit unit style of unit is run.
When the first unit normal operation, the second unit cold start, the first pneumatic control valve, the second pneumatic control valve,
Two electric gate valves and the second non-return valve are closed, and third pneumatic control valve, the 4th pneumatic control valve, the first electric gate valve and the are opened
One non-return valve provides condensed water in high temperature from the first unit to the second unit boiler, meets boiler water filling demand, the second oxygen-eliminating device is not
Auxiliary vapour heating is thrown again.
Second unit normal operation, when the first unit cold start, third pneumatic control valve, the 4th pneumatic control valve,
One electric gate valve and the first non-return valve are closed, and the first pneumatic control valve, the second pneumatic control valve, the second electric gate valve and the are opened
Two non-return valves provide condensed water in high temperature from the second unit to the first unit boiler, meet boiler water filling demand, the first oxygen-eliminating device is not
Auxiliary vapour heating is thrown again.
Compared with prior art, the utility model has the advantages that：
The utility model gets in touch with pipeline and corresponding control valve by setting, puts into operation in unit cold start, with neighbouring
The condensed water of operating unit, which substitutes, coagulates the boiler cold-state flushing water that moisturizing is heated in oxygen-eliminating device through adjacent machine auxiliary steam, is directly entered boiler
Carry out water.All fired power generating units are can be applied to, the unit starting time can be significantly reduced and start energy consumption.
Description of the drawings
Fig. 1 is the utility model fired power generating unit neighbour's machine condensed water interacted system schematic diagram.
Wherein：The first pneumatic control valves of 1-；The second pneumatic control valves of 2-；3- third pneumatic control valves；4- the 4th is pneumatically adjusted
Save valve；The first electric gate valves of 5-；The first non-return valves of 6-；The second electric gate valves of 7-；The second non-return valves of 8-；The first oxygen-eliminating devices of 9-；10-
Second oxygen-eliminating device；The first low-pressure heaters of 11-；The second low-pressure heaters of 12-；13- third low-pressure heaters；The 4th low pressure of 14-
Heater.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings：
Referring to Fig. 1, two-way condensed water stainless steel pipes are arranged in the utility model, and configure two condensed water electric gate valves,
Four condensed water pneumatic control valves, two condensed water non-return valves.System associated pipe work is in unit normal operation in standby
With state, to avoid leading to problems such as associated pipe corrosion, related system pipeline that should select stainless steel because of Long-time Shut-down
Matter, condensate line can select 1Cr18Ni9Ti materials.In view of operating unit rate of load condensate change with dispatching of power netwoks it is basic
Situation, condensed water get in touch with main pipe respectively from two low-pressure heater outlet outlet diversions, starter motor group oxygen-eliminating device are entered after mixing,
To meet the requirement of boiler water filling temperature.
As shown in Figure 1, the utility model neighbour's machine condensed water interacted system, including two-way unit and two-way condensing water conduit；
Include that sequentially connected several low-pressure heaters and an oxygen-eliminating device are exported by condensate pump per road unit；Condensing water conduit is
By the exit of two low-pressure heaters of unit, condensed water bypass is drawn by a pneumatic control valve respectively, two solidifying
Bear water the entrance pipe for the oxygen-eliminating device for being connected to another way unit after bypass converges by an electric gate valve and a non-return valve
On.
Two groups of units include the first unit and the second unit；First unit includes the first low-pressure heater 11, the second low pressure
Heater 12 and the first oxygen-eliminating device 9；Second unit includes third low-pressure heater 13, the 4th low-pressure heater 14 and the second deoxygenation
Device 10；First low-pressure heater 11, the second low-pressure heater 12 and the first oxygen-eliminating device 9 are sequentially connected, third low-pressure heater 13,
4th low-pressure heater 14 and the second oxygen-eliminating device 10 are sequentially connected.
The condensing water conduit of first unit includes the first pneumatic control valve 1, the second pneumatic control valve 2, the first electric gate valve 5
With the first non-return valve 6；The entrance of first pneumatic control valve 1 is connected with the outlet of the first low-pressure heater 11, the second pneumatic adjusting
The entrance of valve 2 is connected with the outlet of the second low-pressure heater 12, the outlet of the first pneumatic control valve 1 and the second pneumatic control valve 2
It is connected on the entrance of the first electric gate valve 5, the outlet of the first electric gate valve 5 passes through the first non-return valve 6 and the second oxygen-eliminating device
10 entrance is connected.
The condensing water conduit of second unit includes third pneumatic control valve 3, the 4th pneumatic control valve 4, the second electric gate valve 7
With the second non-return valve 8；The entrance of third pneumatic control valve 3 is connected with the outlet of third low-pressure heater 13, the 4th pneumatic adjusting
The entrance of valve 4 is connected with the outlet of the 4th low-pressure heater 14, the outlet of third pneumatic control valve 3 and the 4th pneumatic control valve 4
It is connected on the entrance of the second electric gate valve 7, the outlet of the second electric gate valve 7 passes through the second non-return valve 8 and the first oxygen-eliminating device 9
Entrance be connected；
Unit during normal operation, the first pneumatic control valve 1, the second pneumatic control valve 2, third pneumatic control valve the 3, the 4th
Pneumatic control valve 4, the first electric gate valve 5, the second electric gate valve 7, the first non-return valve 6 and the second non-return valve 8 are closed, the first unit
It is run with the boiler circuit unit style of the second unit.
When the first unit normal operation, the second unit cold start, the first pneumatic control valve 1, the second pneumatic control valve 2,
Second electric gate valve 7 and the second non-return valve 8 are closed, and third pneumatic control valve 3, the 4th pneumatic control valve 4, the first electric brake are opened
Valve 5 and the first non-return valve 6 provide condensed water in high temperature from the first unit to the second unit boiler, meet boiler water filling demand, and second
Oxygen-eliminating device 10 no longer throws auxiliary vapour heating.
Second unit normal operation, when the first unit cold start, third pneumatic control valve 3, the 4th pneumatic control valve 4,
First electric gate valve 5 and the first non-return valve 6 are closed, and the first pneumatic control valve 1, the second pneumatic control valve 2, the second electric brake are opened
Valve 7 and the second non-return valve 8 provide condensed water in high temperature from the second unit to the first unit boiler, meet boiler water filling demand, and first
Oxygen-eliminating device 9 no longer throws auxiliary vapour heating.
Illustrate by taking the first unit as an example, the diversion valve of the outlet of the first low-pressure heater and the outlet of the second low-pressure heater is opened
Degree is adjusted accordingly by operating unit load, and when operating unit load is higher, the first low-pressure heater exports diversion valve
Aperture controls smaller value and the second low-pressure heater outlet diversion valve opening is controlled in higher value, to maintain to enter cold start
The condensing water temperature of unit oxygen-eliminating device maintains a certain range；If operating unit load is relatively low, the outlet of the first low-pressure heater is drawn
Penstock aperture controls higher value and the second low-pressure heater outlet diversion valve opening is controlled in smaller value.
In the case where no adjacent machine condensed water interconnects activation system, in boiler water filling, the adjacent machine auxiliary steam that puts into operation adds
Hot oxygen-eliminating device uses four sections of steam extractions of adjacent machine or cold steam again.After unit tape splicing load, when four sections of extraction pressures of the machine are higher than
When oxygen-eliminating device pressure, the machine steam extraction is cut to for oxygen-eliminating device, oxygen-eliminating device enters sliding pressure operation at this time.
After adding adjacent machine condensed water interconnection activation system, it can be drawn by certain grade of heater outlet condensed water of neighbouring unit
It is directly entered boiler water filling after to the oxygen-eliminating device for starting unit, the auxiliary vapour heating of original neighbouring unit is substituted, realizes low-quality energy
Source substitutes the high-quality energy；Shorten and start the time, reduces the water consume, energy consumption, power consumption for starting unit.
The above content is only to illustrate the technological thought of the utility model, and the protection model of the utility model cannot be limited with this
Enclose, it is every according to the utility model proposes technological thought, any change done on the basis of technical solution each falls within this reality
Within protection domain with novel claims.
Claims (7)
1. a kind of neighbour's machine condensed water interacted system, which is characterized in that including two-way unit and two-way condensing water conduit；Per road unit
Include that sequentially connected several low-pressure heaters and an oxygen-eliminating device are exported by condensate pump；Condensing water conduit is by unit
Condensed water bypass, two condensed water bypasses are drawn in the exit of two low-pressure heaters by a pneumatic control valve respectively
On the entrance pipe for the oxygen-eliminating device for being connected to another way unit by an electric gate valve and a non-return valve after converging.
2. neighbour's machine condensed water interacted system according to claim 1, which is characterized in that two groups of units include the first unit and
Second unit；First unit includes the first low-pressure heater (11), the second low-pressure heater (12) and the first oxygen-eliminating device (9)；The
Two units include third low-pressure heater (13), the 4th low-pressure heater (14) and the second oxygen-eliminating device (10)；First low-pressure heating
Device (11), the second low-pressure heater (12) and the first oxygen-eliminating device (9) are sequentially connected, third low-pressure heater (13), the 4th low pressure
Heater (14) and the second oxygen-eliminating device (10) are sequentially connected.
3. neighbour's machine condensed water interacted system according to claim 2, which is characterized in that the condensing water conduit packet of the first unit
Include the first pneumatic control valve (1), the second pneumatic control valve (2), the first electric gate valve (5) and the first non-return valve (6)；First is pneumatic
The entrance of regulating valve (1) is connected with the outlet of the first low-pressure heater (11), and the entrance of the second pneumatic control valve (2) is low with second
The outlet of heater (12) is pressed to be connected, the outlet of the first pneumatic control valve (1) and the second pneumatic control valve (2) is connected to first
On the entrance of electric gate valve (5), the outlet of the first electric gate valve (5) passes through the first non-return valve (6) and the second oxygen-eliminating device (10)
Entrance is connected.
4. neighbour's machine condensed water interacted system according to claim 2, which is characterized in that the condensing water conduit packet of the second unit
Include third pneumatic control valve (3), the 4th pneumatic control valve (4), the second electric gate valve (7) and the second non-return valve (8)；Third is pneumatic
The entrance of regulating valve (3) is connected with the outlet of third low-pressure heater (13), and the entrance of the 4th pneumatic control valve (4) is low with the 4th
The outlet of heater (14) is pressed to be connected, the outlet of third pneumatic control valve (3) and the 4th pneumatic control valve (4) is connected to second
On the entrance of electric gate valve (7), the outlet of the second electric gate valve (7) is entered by the second non-return valve (8) and the first oxygen-eliminating device (9)
Mouth is connected.
5. neighbour's machine condensed water interacted system according to claim 2, which is characterized in that unit during normal operation, first
It is pneumatic control valve (1), the second pneumatic control valve (2), third pneumatic control valve (3), the 4th pneumatic control valve (4), first electronic
Gate valve (5), the second electric gate valve (7), the first non-return valve (6) and the second non-return valve (8) closing, the first unit and the second unit
Boiler circuit unit style is run.
6. neighbour's machine condensed water interacted system according to claim 2, which is characterized in that the first unit normal operation, second
When unit cold start, the first pneumatic control valve (1), the second pneumatic control valve (2), the second electric gate valve (7) and the second check
Valve (8) is closed, and third pneumatic control valve (3), the 4th pneumatic control valve (4), the first electric gate valve (5) and the first non-return valve are opened
(6), condensed water in high temperature is provided from the first unit to the second unit boiler, meets boiler water filling demand, the second oxygen-eliminating device (10) is no
Auxiliary vapour heating is thrown again.
7. neighbour's machine condensed water interacted system according to claim 2, which is characterized in that the second unit normal operation, first
When unit cold start, third pneumatic control valve (3), the 4th pneumatic control valve (4), the first electric gate valve (5) and the first check
Valve (6) is closed, and the first pneumatic control valve (1), the second pneumatic control valve (2), the second electric gate valve (7) and the second non-return valve are opened
(8), condensed water in high temperature is provided from the second unit to the first unit boiler, meets boiler water filling demand, the first oxygen-eliminating device (9) is no longer
Throw auxiliary vapour heating.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820230711.1U CN207990592U (en) | 2018-02-08 | 2018-02-08 | A kind of neighbour's machine condensed water interacted system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820230711.1U CN207990592U (en) | 2018-02-08 | 2018-02-08 | A kind of neighbour's machine condensed water interacted system |
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| CN207990592U true CN207990592U (en) | 2018-10-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087863A (en) * | 2018-02-08 | 2018-05-29 | 西安西热节能技术有限公司 | A kind of neighbour's machine condensation water interacted system |
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2018
- 2018-02-08 CN CN201820230711.1U patent/CN207990592U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087863A (en) * | 2018-02-08 | 2018-05-29 | 西安西热节能技术有限公司 | A kind of neighbour's machine condensation water interacted system |
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