CN209369885U - A kind of steam exhaust draining system - Google Patents
A kind of steam exhaust draining system Download PDFInfo
- Publication number
- CN209369885U CN209369885U CN201822119170.8U CN201822119170U CN209369885U CN 209369885 U CN209369885 U CN 209369885U CN 201822119170 U CN201822119170 U CN 201822119170U CN 209369885 U CN209369885 U CN 209369885U
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- hydrophobic
- steam exhaust
- drain
- collection device
- draining system
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Abstract
The utility model discloses a kind of steam exhaust draining systems, it is related to the drain recovery field of unit in power plant, including hydrophobic collection device and drain discharge device, the hydrophobic collection device is successively connect with the drain discharge device, it is formed hydrophobic from the circulation passage for focusing on discharge, the circulation passage keeps negative pressure state, and the hydrophobic collection device includes steam exhaust drain tank, and is circumscribed with vacuum lead and steam exhaust drain water piping；The hydrophobic collection device is also configured with sensor.It arranges that steam exhaust drain water piping is not necessarily to buried arrangement by the steam exhaust draining system of optimization, hydrophobic quickly discharge nearby can be made, the drain water piping arrangement of optimization is succinct convenient, reduces project amount, pipeline is also not easy to damage.Meanwhile using hydrophobic canned motor pump after, greatly reduce the liquid level requirement of the hydrophobic collection device of negative pressure, the also simple many of actual motion operation.
Description
Technical field
The utility model relates to the drain recovery field of unit in power plant more particularly to a kind of steam exhaust draining systems.
Background technique
Calorific potential just can be transformed into kinetic energy after pipeline introduces steam turbine by the superheated steam with calorific potential energy.Flow at high speed
Steam Actuation turbine rotor rotation, formed mechanical energy.The steam for releasing calorific potential energy is arranged from the steam drain of steam turbine lower part
Out, referred to as steam exhaust.The condensed water that steam exhaust declines and generates because of pressure, temperature in pipeline is referred to as hydrophobic.It is hydrophobic to arrange in time
It puts, otherwise not only steam heat, influence steam flow in absorption tube, and it is serious to generate water hammer, cause serious consequence.
According to code requirement, steam trap connection should be set before the low points of steam pipe network, the pipeline section of vertical ascent.Steam exhaust utilizes
Cause pipe arrangement diversified, existing drain water piping arrangement is roughly divided into two kinds, the first is the nothing in exhaust steam pipeline arrangement
When need to be across pedestrian passage overhead or large obstacle, drain water piping can tilt slope arrangement, hydrophobic thin from host is flowed back to
Waterpipe or neighbouring hot well；It is for second when needing in exhaust steam pipeline arrangement across pedestrian passage overhead or large obstacle, because
It is all negative pressure state and gravity for exhaust steam pipeline and drain water piping, drain water piping can not be together across buried can only tilting
Slope arrangement.
But there are the following problems that 1, buried drain water piping is inconvenient to overhaul for the buried arrangement of drain water piping；2, buried drain water piping
It needs additionally to consider heat preservation and anti-corrosion；3, buried drain water piping buried depth is shallower, and caliber is small, is easy to be damaged；4, civil engineering
Amount increases.
Therefore, those skilled in the art is dedicated to developing a kind of new steam exhaust draining system and method, avoids drain pipe
The buried arrangement in road.
Utility model content
In view of the above drawbacks of the prior art, how technical problem to be solved in the utility model is in drain water piping
When inside is negative pressure state, the buried arrangement of drain water piping is avoided.
To achieve the above object, the utility model provides a kind of steam exhaust draining system, including hydrophobic collection device and dredges
Water tapping equipment, the hydrophobic collection device are successively connect with the drain discharge device, are formed hydrophobic from focusing on discharge
Circulation passage, the circulation passage keep negative pressure state, and the hydrophobic collection device includes steam exhaust drain tank, and it is true to be circumscribed with pumping
Vacant duct and steam exhaust drain water piping；The hydrophobic collection device is also configured with sensor.
Further, the drain discharge device includes hydrophobic canned motor pump.
Further, the hydrophobic canned motor pump is at least arranged 2.
Further, the quantity of the hydrophobic canned motor pump increases with the increase of hydrophobic amount.
Further, the hydrophobic canned motor pump parallel connection, forms the drain discharge channel of multi-set parallel.
Further, the both ends of the hydrophobic canned motor pump are connected with valve.
Further, the steam exhaust drain tank is a closed space, and intermediate portion is divided into a cross section for circle
Long cylinder, the top and bottom of the long cylinder by outwardly protrude semicircle cover.
Further, the drain discharge device is circumscribed with blowdown flushing pipe.
Further, valve is equipped between the steam exhaust drain water piping and the hydrophobic collection device.
Further, the vacuum lead is equipped with valve.
It arranges that steam exhaust drain water piping is not necessarily to buried arrangement by the steam exhaust draining system of optimization, can make hydrophobic quick nearby
The drain water piping arrangement of discharge, optimization is succinct convenient, reduces project amount, pipeline is also not easy to damage.Meanwhile use is hydrophobic
After canned motor pump, the liquid level requirement of the hydrophobic collection device of negative pressure, the also simple many of actual motion operation are greatly reduced.
Make furtherly below with reference to technical effect of the attached drawing to the design of the utility model, specific structure and generation
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Detailed description of the invention
Fig. 1 is exhaust steam pipeline and drain water piping arrangement schematic diagram；
Fig. 2 is the overall schematic of a preferred embodiment of the utility model；
Fig. 3 is the overall schematic of another preferred embodiment of the utility model；
Fig. 4 is the overall schematic of another preferred embodiment of the utility model.
Specific embodiment
Multiple preferred embodiments that the utility model is introduced below with reference to Figure of description, keep its technology contents clearer
Be easy to understand.The utility model can be emerged from by many various forms of embodiments, the protection of the utility model
Range is not limited only to the embodiment mentioned in text.
In the accompanying drawings, the identical component of structure is indicated with same numbers label, everywhere the similar component of structure or function with
Like numeral label indicates.The size and thickness of each component shown in the drawings are to be arbitrarily shown, and the utility model is not
Limit the size and thickness of each component.Apparent in order to make to illustrate, some places suitably exaggerate the thickness of component in attached drawing.
In general, exhaust steam pipeline caliber is larger, and drain water piping caliber is relatively much smaller, and drain water piping is frequently located in steam exhaust pipe
The arranged beneath in road.As shown in Figure 1, when needing in exhaust steam pipeline arrangement across pedestrian passage overhead or large obstacle, because
The reason of for exhaust steam pipeline and drain water piping being all negative pressure state and gravity, drain water piping can not together across.In order to solve to dredge
The problem of water discharges in time, the scheme taken now are but the buried arrangements of drain water piping by the buried arrangement of drain water piping
Bring a series of contingency question.
In order to solve the problems, such as brought by the buried arrangement of drain water piping, the utility model provides a kind of hydrophobic system of steam exhaust
System.As shown in Fig. 2, being one embodiment of the utility model, including hydrophobic collection device 1 and drain discharge device 2, hydrophobic receipts
Acquisition means 1 are successively connect with drain discharge device 2, and formation is hydrophobic from the circulation passage 3 for focusing on discharge, wherein hydrophobic collection fills
It sets 1 and is responsible for hydrophobic concentration, drain discharge device 2 is responsible for going out the drain discharge of collection, hydrophobic collection device 1, hydrophobic row
Put device 2, circulation passage 3 always remains as negative pressure state, therefore circulation passage 3 also to be kept to be isolated with extraneous, guarantee
Ambient atmosphere not can enter inside pipeline.
Wherein, drain discharge device 2 includes hydrophobic canned motor pump 201.Hydrophobic canned motor pump 201, which eliminates conventional centrifugal pump, to be had
Sealing device for rotary shaft, can accomplish complete No leakage, it is ensured that by drain discharge to hot well or heat pump steam exhaust condensed water
Extraneous atmosphere not can enter the inside of drain discharge pipeline during system.
Fig. 3 is another embodiment of the utility model.In Fig. 3, hydrophobic collection device 1 is specially one cylindric
The placement position of steam exhaust drain tank, steam exhaust drain tank can be adjusted according to external actual environment, this is weary in the present embodiment
Vapour drain tank is horizontal positioned.It is a cross section in the middle section of the steam exhaust drain tank is circular long cylinder, in long cylinder
Top and bottom are covered by the semicircle outwardly protruded, a closed space are constituted, for the hydrophobic of store collected.
In the present embodiment, cylindric steam exhaust drain tank is connect with steam exhaust drain water piping 4.Unit is entire in power plant
There is many places steam exhaust drain water piping 4 in drain recovery part.The steam exhaust drain water piping 4 of a portion, because exhaust steam pipeline 5 is not required to
Host drain water piping or attached can be flowed back to automatically across hydrophobic in pedestrian passage or large obstacle, steam exhaust drain water piping 4
Near-thermal well, but some steam exhaust drain water piping 4, because exhaust steam pipeline 5 is needed across pedestrian passage or large obstacle, steam exhaust
Hydrophobic in drain water piping 4 cannot flow back to host drain water piping or neighbouring hot well automatically, then hydrophobic to first pass through these steam exhaust hydrophobic
Pipeline 4, which flows in steam exhaust drain tank, to be collected.Valve, the valve are equipped between steam exhaust drain water piping 4 and hydrophobic collection device 1
For adjusting hydrophobic circulation, when the hydrophobic flow in steam exhaust drain water piping 4 becomes larger, control valve increases valve
Hydrophobic circulation within the unit time, so that hydrophobic timely discharge, avoids the occurrence of water hammer, cause serious consequence.
Hydrophobic collection device 1 is circumscribed with vacuum lead 6, by the vacuum lead 6 and external vacuum evacuation device into
Row connection.The inside of hydrophobic collection device 1 is evacuated by the vacuum evacuation device.Vacuum lead 6 is equipped with valve, leads to
The adjustable strength vacuumized of the valve is crossed, the pressure inside hydrophobic collection device 1 is adjusted.
Hydrophobic collection device 1 is also circumscribed with blowdown flushing pipe 7, and the dirt in hydrophobic collection device 1 is excluded, row
Dirty flushing pipe 7 is equipped with valve, for adjusting the speed of dirt discharge, guarantees at the cleannes inside hydrophobic collection device 1
In state up to standard.In addition, when using the steam exhaust draining system for the first time, it can be by blowdown flushing pipe 7, to hydrophobic collection device
1 is rinsed.
In 2 part of drain discharge device of the present embodiment, it is configured with two hydrophobic canned motor pumps 201.
Optionally, the quantity of hydrophobic canned motor pump 201 can increase with the increase of drain discharge amount.
It is connected in parallel between more hydrophobic canned motor pumps 201, forms the drain discharge channel of multi-set parallel, improve drain discharge
Efficiency.In the embodiment shown in fig. 3, two hydrophobic canned motor pumps 201 take the mode of parallel connection, in circulation passage 3
The hydrophobic drain discharge channel being successively made up of two hydrophobic canned motor pumps 201, and connection steam exhaust condensate system or attached
The pipeline 8 of near-thermal well is discharged into nearby in steam exhaust condensate system or neighbouring hot well.
The both ends of two hydrophobic canned motor pumps 201 are all connected with valve, valve can control the drain discharge channel open with
It closes, and in the case where opening, adjusts the size of drain discharge amount.
The utility model additionally provides a kind of steam exhaust trapping method, and this approach includes the following steps (as shown in Figure 3):
Step 1 passes through vacuum lead 6, and the inside of steam exhaust drain tank is evacuated；
Step 2, steam exhaust drain tank start to collect it is hydrophobic, it is hydrophobic from multiple steam exhaust drain water pipings 4；
Step 3 opens hydrophobic canned motor pump 201, hydrophobic by hydrophobic canned motor pump 201 and will connect steam exhaust condensate system
Or nearby the pipeline 8 of hot well is discharged into nearby in steam exhaust condensate system or neighbouring hot well.
According to hydrophobic uninterrupted, the valve of hydrophobic 201 two sides of canned motor pump is adjusted, the control of discharge amount is carried out.It can also
According to specific hydrophobic flow, two hydrophobic canned motor pumps 201 are switched on, or only open a wherein hydrophobic canned motor pump 201.
As shown in figure 4, being another embodiment of the utility model.On the basis of Fig. 2, at hydrophobic collection device 1
Divide addition sensor 8 and corrosion-proof ring 9.Sensor 8 passes through hydrophobic collection device 1, and is fixed on hydrophobic collection device 1.Sensing
Device 8 can be arranged on any position of hydrophobic collection device 1, be preferably provided at the bottom of hydrophobic collection device 1.Sensor 8
The part inside hydrophobic collection device 1, which is arranged in, can obtain hydraulic pressure information, water level information and water inside hydrophobic collection device 1
PH value.The part outside hydrophobic collection device 1 is arranged in configured with indicator light in sensor 8.Water is internally provided in sensor 8
The threshold value of pressure, water level, pH value, measured hydraulic pressure information, water level information and pH value can hydraulic pressure corresponding with setting, water
Position, pH value threshold value compared in real time, measured hydraulic pressure information, water level information and pH value be more than correspondence threshold value when
It waits, the indicator light outside hydrophobic collection device 1, which is arranged in, to be lighted, and there are three types of colors for indicator light, respectively correspond hydraulic pressure, water
Position, pH value are more than corresponding threshold value.Staff can according to the different colours of indicator light, the hydraulic pressure that takes appropriate measures,
Water level or pH value drop to threshold value or less.After hydraulic pressure, water level or pH value drop to threshold value or less, corresponding indicator light will be put out
It goes out, to guarantee that hydraulic pressure, water level and pH value in hydrophobic collection device 1 are maintained within reasonable threshold range, extends hydrophobic
The working life of collection device 1.
The inside for being fixed on hydrophobic collection device 1 is set in corrosion-proof ring 9, and multiple corrosion-proof rings 9 can be set.Corrosion-proof ring 9 is
Made of anti-corrosion alloy material, anti-corrosion alloy is mainly made of copper, zinc, lead, tin, rare earth element.Corrosion-proof ring 9 is constantly to hydrophobic
Electronics is provided, it is hydrophobic with antisepsis rich in electronics.Circulation passage 3 and drain discharge device 2 are flowed through rich in electronics is hydrophobic,
Because hydrophobic antisepsis can extend the service life of entire draining system.
The preferred embodiments of the present invention have been described in detail above.It should be appreciated that this field ordinary skill without
It needs creative work according to the present utility model can conceive and makes many modifications and variations.Therefore, it is all in the art
Technical staff passes through logical analysis, reasoning, or a limited experiment according to the design of the utility model on the basis of existing technology can
It, all should be within the scope of protection determined by the claims with obtained technical solution.
Claims (10)
1. a kind of steam exhaust draining system, which is characterized in that including hydrophobic collection device and drain discharge device, the hydrophobic collection
Device is successively connect with the drain discharge device, is formed hydrophobic from the circulation passage for focusing on discharge, the circulation passage guarantor
Negative pressure state is held, the hydrophobic collection device includes steam exhaust drain tank, and is circumscribed with vacuum lead and steam exhaust drain water piping；Institute
It states hydrophobic collection device and is also configured with sensor.
2. steam exhaust draining system as described in claim 1, which is characterized in that the drain discharge device includes hydrophobic shielding
Pump.
3. steam exhaust draining system as claimed in claim 2, which is characterized in that the hydrophobic canned motor pump is at least arranged 2.
4. steam exhaust draining system as claimed in claim 3, which is characterized in that the quantity of the hydrophobic canned motor pump is with hydrophobic amount
Increase and increases.
5. steam exhaust draining system as claimed in claim 3, which is characterized in that the hydrophobic canned motor pump parallel connection is formed more
The parallel drain discharge channel of group.
6. steam exhaust draining system as claimed in claim 2, which is characterized in that the both ends of the hydrophobic canned motor pump are connected with valve
Door.
7. steam exhaust draining system as described in claim 1, which is characterized in that the steam exhaust drain tank is a closed sky
Between, it is circular long cylinder that intermediate portion, which is divided into a cross section, in the top and bottom of the long cylinder by the semicircle that outwardly protrudes
Shape covering.
8. steam exhaust draining system as described in claim 1, which is characterized in that the drain discharge device is circumscribed with blowdown flushing
Pipeline.
9. steam exhaust draining system as described in claim 1, which is characterized in that the steam exhaust drain water piping and the hydrophobic collection
Valve is equipped between device.
10. steam exhaust draining system as described in claim 1, which is characterized in that the vacuum lead is equipped with valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822119170.8U CN209369885U (en) | 2018-12-17 | 2018-12-17 | A kind of steam exhaust draining system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822119170.8U CN209369885U (en) | 2018-12-17 | 2018-12-17 | A kind of steam exhaust draining system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209369885U true CN209369885U (en) | 2019-09-10 |
Family
ID=67833045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822119170.8U Active CN209369885U (en) | 2018-12-17 | 2018-12-17 | A kind of steam exhaust draining system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209369885U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110748387A (en) * | 2019-11-04 | 2020-02-04 | 中国能源建设集团山西省电力勘测设计院有限公司 | Drainage system and drainage method for lower steam exhaust pipeline of low-position-arranged water feeding pump steam turbine |
-
2018
- 2018-12-17 CN CN201822119170.8U patent/CN209369885U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110748387A (en) * | 2019-11-04 | 2020-02-04 | 中国能源建设集团山西省电力勘测设计院有限公司 | Drainage system and drainage method for lower steam exhaust pipeline of low-position-arranged water feeding pump steam turbine |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
Address after: 102200 room 5413, building 305, Guodian New Energy Technology Research Institute, future science city, Beiqijia Town, Changping District, Beijing Patentee after: Guoneng Longyuan Lantian Energy Saving Technology Co.,Ltd. Address before: 16F, building 1, yard 16, West Fourth Ring Middle Road, Haidian District, Beijing 100039 Patentee before: GUODIAN LONGYUAN ENERGY SAVING TECHNOLOGY Co.,Ltd. |