CN107166368A - A kind of low-pressure heater steam trap connection - Google Patents
A kind of low-pressure heater steam trap connection Download PDFInfo
- Publication number
- CN107166368A CN107166368A CN201710395308.4A CN201710395308A CN107166368A CN 107166368 A CN107166368 A CN 107166368A CN 201710395308 A CN201710395308 A CN 201710395308A CN 107166368 A CN107166368 A CN 107166368A
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- China
- Prior art keywords
- low
- pressure heater
- hydrophobic
- pressure
- mixing chamber
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/32—Feed-water heaters, i.e. economisers or like preheaters arranged to be heated by steam, e.g. bled from turbines
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
The invention discloses a kind of low-pressure heater steam trap connection, including low-pressure heater one, low-pressure heater two, the low-pressure heater one, it is connected with low-pressure heater two by higher level's low plus hydrophobic, the other low-pressure heater two is connected by main condensate pipeline with low-pressure heater one, connected on main condensate pipeline provided with pilot fluid and confluence device, the low-pressure heater one is with pilot fluid and confluence device by being connected with valvular low plus hydrophobic pipeline, the low plus hydrophobic pipeline is provided with low-pressure heater and drainage pump, the low-pressure heater one, low-pressure heater two is connected with low pressure pressurized, heated device steam inlet pipe road respectively；Wherein main condensate is the water of high-quality, and hydrophobic low-pressure heater is high-quality water after heated device cooling；The low-pressure heater one, with low-pressure heater two be power plant's low-pressure heater.The present invention has simple in construction, flexible adjustment, and cost of investment is low, save the energy, does not consume auxiliary steam, does not increase station-service electricity, reduces operation expense and the cost of overhaul, energy-saving advantage.
Description
Technical field
Patent of the present invention is related to the hydrophobic equipment technical field of generating set, more particularly to a kind of hydrophobic dress of low-pressure heater
Put.
Background technology
In the system of thermal power plant, in the draining system that prior art is used, low plus hydrophobic is the water of high-quality, if
There is no drainage pump, low plus hydrophobic will be led in condenser, and the temperature of low plus hydrophobic is very high, and so the vacuum to unit has shadow
Ring, make vacuum decay, so as to reduce the operational efficiency of unit.Other low plus hydrophobic is condensed water pump and beaten again to after gas trap
Return, be then heated to gland heater, again into low add, this is a kind of waste, a kind of Repeat-heating to drawing gas.In addition,
Heater outlet is improved by the hydrophobic main condensate pipeline for throwing high-pressure heater outlet into using drainage pump in the prior art
Condensing water temperature, improve the temperature of heating exit condensate, reduce condensate and go again after oxygen-eliminating device in boiler
Caloric receptivity, reduces the hydrophobic low-temperature receiver heat loss for flowing into solidifying gas, improves unit heat economy, while can be with using low-pressure heater and drainage pump
Make the condensate of hydrophobic exclusion more high parameter, so as to reduce exclusion loss, improve heat-economy, still, use low plus hydrophobic
Pump also has unfavorable one side, and the problem of it is present is：1st, using low-pressure heater and drainage pump system arrangement can be made more complicated；2nd, add
Cost of investment and operating maintenance cost；3rd, station service is increased.
The content of the invention
Patent of the present invention in order to solve using low-pressure heater and drainage pump bring not enough there is provided a kind of hydrophobic dress of low-pressure heater
Put；Present system is simple in construction, regulation is more flexible, and cost of investment is relatively low, and any auxiliary steam is not consumed, does not increase station service
Amount, reduces operation expense and the cost of overhaul, and energy conservation and consumption reduction effects are good.It is hydrophobic by low-pressure heater, effective existing skill
The deficiency that the low-pressure heater drainage pump of art is present.
To achieve the above object, patent content of the present invention is adopted the following technical scheme that：
A kind of low-pressure heater steam trap connection, including low-pressure heater one, low-pressure heater two, the low-pressure heater
First, be connected with low-pressure heater two by higher level's low plus hydrophobic, in addition the low-pressure heater two by main condensate pipeline with
Low-pressure heater one is connected, and is connected on main condensate pipeline provided with pilot fluid and confluence device, the low-pressure heater one and injection
Collector-shoe gear with valvular low plus hydrophobic pipeline by connecting, and the low plus hydrophobic pipeline is provided with low-pressure heater and drainage pump, described
Low-pressure heater one, low-pressure heater two are connected with low pressure pressurized, heated device steam inlet pipe road respectively；Wherein main condensate is Gao Pin
The water of matter, hydrophobic low-pressure heater is high-quality water after heated device cooling；The low-pressure heater one and low-pressure heater two
It is power plant's low-pressure heater.
The pilot fluid and confluence device includes nozzle, flume, mixing chamber, diffuser pipe, and nozzle, mixing chamber, diffuser pipe are in the past
It is sequentially connected after, raised provided with diminishing conical structure from front to back in the middle part of the nozzle bore, the flume
In the raised rear side of conical structure and nozzle vertical connection, the diffuser pipe is using diminishing cone knot from front to back
Structure, condensate is sprayed by nozzle at high speeds, and diffuser pipe is connected with low-pressure heater two；The mixing chamber is to introduce low through main condensate
Press after heater, the swapace of energy is carried out in mixing chamber；The diffuser pipe is main condensate and the low-pressure heating being introduced into
Device is hydrophobic after mixing chamber mixing, is risen in diffuser pipe.
The diameter of bore of the nozzle is identical with condensate caliber, and the diameter of bore of the nozzle is more than the endoporus of mixing chamber
Diameter.
Hydrophobic electrically operated gate, manually operated door are penetrated on the low plus hydrophobic pipeline, hydrophobic electrically operated gate adjusts valve according to actual conditions
The aperture size of door；In normal operation, manually operated door ensures valve wide open.
The mixing chamber is using diminishing conical structure from front to back.
The front end face endoporus of the mixing chamber is provided with big taper chamfering.
The outer end of the nozzle, flume and diffuser pipe is respectively equipped with ring flange, the ring flange and is respectively equipped with spiral shell
Keyhole.
Beneficial effects of the present invention：
1. present system is simple in construction, cost of investment is relatively low, and any auxiliary steam is not consumed, does not increase station-service electricity, section
About cost, reduces operation expense and the cost of overhaul；Regulation is more flexible；The energy is saved, the advantages of energy-saving.
2. the present invention on main condensate pipeline by installing pilot fluid and confluence device, pilot fluid and confluence device and low-pressure heater additional
Between, using the principle of pilot fluid and confluence, using main condensate as main diversion, into pilot fluid and confluence device, injection low-pressure heater
Hydrophobic, final blended room mixing enters diffuser pipe after carrying out the exchanging of heat energy and kinetic energy, and the reduction of speed that boosted in diffuser pipe overcomes
Resistance enters next stage heater.Patent of the present invention instead of the low-pressure heater draining system using drainage pump, is low plus is
System is simpler, while reducing station-service electricity, reduction cost of investment and operation expense have effect energy-saving well
Really.
Brief description of the drawings：
Fig. 1 is schematic structural view of the invention；
Fig. 2 is drainage pump low price draining system；
Fig. 3 is pilot fluid and confluence schematic device.
In figure, 1, low pressure pressurized, heated device steam inlet pipe road, 2, main condensate pipeline, 3, low-pressure heater, 4, low plus hydrophobic,
5th, valve, 6, higher level's low plus hydrophobic, 7, pilot fluid and confluence device, 8, low-pressure heater and drainage pump, 9, low-pressure heater, 10, nozzle, 11, mixed
Close room, 12, diffuser pipe, 13, flume, 14, bolt hole.
Embodiment：
For a better understanding of the present invention, embodiments of the present invention are explained in detail below in conjunction with the accompanying drawings.
With reference to Fig. 1 to Fig. 3, a kind of low-pressure heater steam trap connection, including low-pressure heater 1, pilot fluid and confluence device 7,
11 in low-pressure heater and drainage pump 8, low-pressure heater 29, nozzle 10, mixing chamber, diffuser pipe 12, flume 13, bolt hole 14.It is described low
Press heater 1, be connected with low-pressure heater 29 by higher level's low plus hydrophobic 6, the low-pressure heater 29 passes through master in addition
Condensing water conduit 2 is connected with low-pressure heater 1, is connected on main condensate pipeline 2 provided with pilot fluid and confluence device 7, described low
Pressure heater 1 is connected with pilot fluid and confluence device 7 by the low plus hydrophobic pipeline 4 with valve 5, the low plus hydrophobic pipeline 4
Be provided with low-pressure heater and drainage pump 8, the low-pressure heater 1, low-pressure heater 29 respectively with low pressure pressurized, heated device steam inlet pipe road
1 connection.Wherein main condensate is the water of high-quality, and hydrophobic low-pressure heater is high-quality water after heated device cooling.It is described low
Press heater 1, be power plant's low-pressure heater with low-pressure heater 29.
The pilot fluid and confluence device 7 includes nozzle 10, flume 13, mixing chamber 11, diffuser pipe 12, nozzle 10, mixing chamber
11st, diffuser pipe 12 is sequentially connected from front to back, provided with diminishing cone knot from front to back in the middle part of the endoporus of nozzle 10
Structure is raised, the flume 13 in the raised rear side of conical structure and the vertical connection of nozzle 10, the diffuser pipe 12 using from
The diminishing conical structure of front to back.Condensate is sprayed at a high speed by nozzle 10.Diffuser pipe 12 connects with low-pressure heater 29
Connect.The mixing chamber is that after introducing low-pressure heater through main condensate, the swapace of energy is carried out in mixing chamber；The diffusion
Pipe is that main condensate is hydrophobic after mixing chamber is mixed with the low-pressure heater being introduced into, and is risen in diffuser pipe.
The diameter of bore of the nozzle 10 is identical with condensate caliber, and the diameter of bore of the nozzle 10 is more than mixing chamber 11
Diameter of bore.
Hydrophobic electrically operated gate, manually operated door are penetrated on the low plus hydrophobic pipeline 4, hydrophobic electrically operated gate adjusts valve according to actual conditions
The aperture size of door；In normal operation, manually operated door ensures valve wide open.
The mixing chamber 11 is using diminishing conical structure from front to back.
The front end face endoporus of the mixing chamber 11 is provided with big taper chamfering.
The outer end of the nozzle 10, flume 13 and diffuser pipe 12, which is respectively equipped with ring flange 15, the ring flange, to be divided
She You not bolt hole 14.
The operation principle and process of the present invention：
The Drainage System of Low-pressure Heater of the present invention substitutes original hydrophobic pumping system using pilot fluid and confluence device；Pilot fluid and confluence device
It is placed on main condensate pipeline, is connected with low-pressure heater, forms new condensate and enter by what low-pressure heater below
Oxygen-eliminating device.Electronic drain valve is equipped with by the drain water piping of injection, to control hydrophobic flow control low-pressure heater water level.
Middle pilot fluid and confluence device caliber is identical with condensate caliber；The space of diffuser pipe and mixing chamber will make condensation enough
Water and it is hydrophobic be sufficiently mixed and boost overcome resistance；Nozzle ensure that can guarantee that enough condensates under different operating modes
Flow；
Condensate is heated after 3 low-pressure heaters by the steam in 1 low-pressure heater steam inlet pipe, makes condensing water temperature liter
Height, into pilot fluid and confluence device device as shown in Figure 3；Condensate is sprayed at a high speed by the nozzle 10 of the pilot fluid and confluence in accompanying drawing 3,
Making the pressure of nozzle exit is reduced, and the water in 13 flumes is sucked, and in the lump into mixing chamber 11, is entered in mixing chamber 11
Row heat energy and exchange of kinetic energy, subsequently into diffuser pipe 12.In flaring type diffuser pipe 12, condensing water flow velocity gradually reduces and pressure
Rise, next stage heater 9 is admitted to when pressure is enough to overcome resistance.For ensure heater water level in normal range (NR),
The size of hydrophobic flow is adjusted in the aperture that valve 5 can be changed by valve 5, makes the low position that adds water normal.
Although above-mentioned the embodiment of invention is described with reference to accompanying drawing, not to the scope of the present invention
Limitation, on the basis of technical scheme, those skilled in the art need not pay creative work and can make
Various modifications or deform still within protection scope of the present invention.
Claims (7)
1. a kind of low-pressure heater steam trap connection, it is characterized in that, including low-pressure heater one, low-pressure heater two, the low pressure
Heater one, it is connected by higher level's low plus hydrophobic with low-pressure heater two, the low-pressure heater two passes through main condensate in addition
Pipeline is connected with low-pressure heater one, is connected on main condensate pipeline provided with pilot fluid and confluence device, the low-pressure heater one
With pilot fluid and confluence device by being connected with valvular low plus hydrophobic pipeline, the low plus hydrophobic pipeline is provided with low plus hydrophobic
Pump, the low-pressure heater one, low-pressure heater two are connected with low pressure pressurized, heated device steam inlet pipe road respectively；Wherein main condensate
It is the water of high-quality, hydrophobic low-pressure heater is high-quality water after heated device cooling；The low-pressure heater one, add with low pressure
Re Qiershi power plant low-pressure heater.
2. a kind of low-pressure heater steam trap connection as claimed in claim 1, it is characterized in that, the pilot fluid and confluence device includes spray
Mouth, flume, mixing chamber, diffuser pipe, nozzle, mixing chamber, diffuser pipe are sequentially connected from front to back, are set in the middle part of the nozzle bore
There is diminishing conical structure projection from front to back, the flume is vertical with nozzle in the raised rear side of conical structure
Connection, the diffuser pipe is sprayed using diminishing conical structure from front to back, condensate by nozzle at high speeds, diffuser pipe with
Low-pressure heater two is connected；The mixing chamber is that after introducing low-pressure heater through main condensate, the friendship of energy is carried out in mixing chamber
Change space；The diffuser pipe is that main condensate is hydrophobic after mixing chamber is mixed with the low-pressure heater being introduced into, and is entered in diffuser pipe
Row rises.
3. a kind of low-pressure heater steam trap connection as claimed in claim 2, it is characterized in that, the diameter of bore of the nozzle is with coagulating
Bear water that caliber is identical, the diameter of bore of the nozzle is more than the diameter of bore of mixing chamber.
4. a kind of low-pressure heater steam trap connection as claimed in claim 1, it is characterized in that, penetrated on the low plus hydrophobic pipeline
Hydrophobic electrically operated gate, manually operated door, hydrophobic electrically operated gate adjust the aperture size of valve according to actual conditions；The manually operated door in normal operation
Ensure valve wide open.
5. a kind of low-pressure heater steam trap connection as claimed in claim 2, it is characterized in that, the mixing chamber is using from front to back
Diminishing conical structure.
6. a kind of low-pressure heater steam trap connection as claimed in claim 2, it is characterized in that, the front end face endoporus of the mixing chamber
Provided with big taper chamfering.
7. a kind of low-pressure heater steam trap connection as claimed in claim 2, it is characterized in that, the nozzle, flume and diffusion
The outer end of pipe is respectively equipped with ring flange, the ring flange and is respectively equipped with bolt hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710395308.4A CN107166368A (en) | 2017-05-26 | 2017-05-26 | A kind of low-pressure heater steam trap connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710395308.4A CN107166368A (en) | 2017-05-26 | 2017-05-26 | A kind of low-pressure heater steam trap connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107166368A true CN107166368A (en) | 2017-09-15 |
Family
ID=59822416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710395308.4A Pending CN107166368A (en) | 2017-05-26 | 2017-05-26 | A kind of low-pressure heater steam trap connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107166368A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644756A (en) * | 2018-07-13 | 2018-10-12 | 中国能源建设集团陕西省电力设计院有限公司 | A kind of low-pressure heater draining system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1338860A (en) * | 1972-11-01 | 1973-11-28 | Foster Wheeler Corp | Method of treating boiler make-up water |
| JPS63251703A (en) * | 1987-04-08 | 1988-10-19 | 株式会社日立製作所 | Feedwater-heater drain system oxygen-concentration controller |
| CN1793617A (en) * | 2005-12-28 | 2006-06-28 | 上海电力学院 | Multi-grade using backheating drain residual heat generator of thermal power generator set |
| CN103090360A (en) * | 2011-11-02 | 2013-05-08 | 李建锋 | Energy recovery method of thermal power plant heat regenerative system |
| CN203731374U (en) * | 2013-12-31 | 2014-07-23 | 华电电力科学研究院 | Drain structure of low-pressure heater regenerative system of power station |
-
2017
- 2017-05-26 CN CN201710395308.4A patent/CN107166368A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1338860A (en) * | 1972-11-01 | 1973-11-28 | Foster Wheeler Corp | Method of treating boiler make-up water |
| JPS63251703A (en) * | 1987-04-08 | 1988-10-19 | 株式会社日立製作所 | Feedwater-heater drain system oxygen-concentration controller |
| CN1793617A (en) * | 2005-12-28 | 2006-06-28 | 上海电力学院 | Multi-grade using backheating drain residual heat generator of thermal power generator set |
| CN103090360A (en) * | 2011-11-02 | 2013-05-08 | 李建锋 | Energy recovery method of thermal power plant heat regenerative system |
| CN203731374U (en) * | 2013-12-31 | 2014-07-23 | 华电电力科学研究院 | Drain structure of low-pressure heater regenerative system of power station |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644756A (en) * | 2018-07-13 | 2018-10-12 | 中国能源建设集团陕西省电力设计院有限公司 | A kind of low-pressure heater draining system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170915 |
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| RJ01 | Rejection of invention patent application after publication |