CN104776753B - The uniform ball feeding device of electric power plant condenser ball cleaning system - Google Patents
The uniform ball feeding device of electric power plant condenser ball cleaning system Download PDFInfo
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- CN104776753B CN104776753B CN201510204627.3A CN201510204627A CN104776753B CN 104776753 B CN104776753 B CN 104776753B CN 201510204627 A CN201510204627 A CN 201510204627A CN 104776753 B CN104776753 B CN 104776753B
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Abstract
The invention belongs to generating equipment cooling technology fields, it is related to a kind of uniform ball feeding device of electric power plant condenser ball cleaning system, the device, which includes several release, to be responsible for, several release branch pipes being connected with release supervisor, each release branch pipe is connected with release supervisor's port of export, the release branch pipe is equipped with spray ball mouth, passes through the setting of release branch pipe and spray ball mouth so that the glueballs launched from spray ball mouth is evenly distributed on each region of circulating water inlet cross section.The present invention solve thes problems, such as that local repeated washing, periphery can not be cleaned among current plant condenser cooling tube bundle.
Description
Technical field
The invention belongs to the equal of generating equipment cooling technology field more particularly to a kind of electric power plant condenser ball cleaning system
Even ball feeding device.
Background technology
An important factor for steam turbine exhaust pressure is influence unit economy, in the case where other conditions are constant, condensing
The end difference of device directly determines unit exhaust steam pressure, is running important monitored parameter.The cleaning journey of Cooling Tubes of Condenser water side
Degree is a key factor for influencing condenser terminal difference, and condenser ball cleaning is that condenser heat exchange effect is ensured in on-line operation
Fruit, the effective measures for reducing heat transfer end difference for steam condenser.
Traditional condenser ball cleaning method and system pump 8 by glueballs in storage spherical tank 9 through release as shown in Figure 1, losing
Supervisor 1 is sent into condenser circulating water water inlet pipe 4, then enters condenser 5 with flow, and recirculated water is pooled to after rinsing cooling tube
Outlet pipe 6 is finally collected by ball screen 7, is returned in storage spherical tank 9.But in actual motion often exist tube bank cleaning it is uneven,
Peripheral cooling tube can not clean and the problem of the heat exchanger tube repeated washing of middle part, and the heat exchange property and effect of condenser do not obtain root
Person's character improves.
The main reason for tube bank cleaning is uneven, cleaning performance is poor is that traditional ball cleaning apparatus conveys glue by Rubber ball pump
During ball, glueballs quantity is generally only the 7%-10% of cooling tube quantity, since glueballs pipe diameter is limited, above-mentioned glueballs point
Cloth is in the circulation line of entire ball cleaning apparatus, it is impossible to in a flash into condenser entrance and substantially uniformity diffusion
It comes.It is actually seldom with the glueballs quantity in a flash into condenser tube beam entrance, usually only launch glueballs total amount
30% or so, that is, 3% or so of cooling tube quantity.Therefore, it is cleaned every time only less than 3% cooling tube, and these
The cooling tube cleaned is normally at the best position of condenser (i.e. the cooling tube at tube bank middle part).Moreover, even if glueballs
Cleaning device long-play also only has the tube bank of this part to be repeated cleaning, and the most cooling tube of condenser is not long-term
To cleaning.
In recent years, 100% pitching rate is taken seriously and utilizes, but also due to pipe diameter limitation of losing, whole glueballs need
Want certain time that can be increased considerably completely into condenser, glueballs quantity, all glueballs enter the time of condenser
Synchronous to increase, when this time difference flowing through the time in cooling tube more than glueballs, the increased effect of pitching rate has not just existed,
This point has obtained the verification of field test.Therefore, it is big not because of pitching rate to clean uneven halfway phenomenon for tube bank
Width raising obtains radical change.
There are compressed air concentration pitching method and apparatus in the country at present, although this method and device can be when extremely short
In most glueballs are sent into release pipeline, but since release pipe caliber is compared to for circulating water inlet, very carefully, so
Glueballs still concentrates on circulating water inlet road center after release pipe enters circulating water inlet, can not uniformly be diffused into whole
A pipeline is only carried by pipeline center's region recirculated water to downstream, necessarily causes to clean non-uniform consequence.Cooling tube bundle cleans
Uneven halfway Another reason be glueballs itself proportion and water proportion it is very close, the movement of glueballs in water
Place one's entire reliance upon the rolling action of water.Its own does not have the ability for changing itself flow trace.Therefore it is cooled down to change
Uneven halfway problem is cleaned in tube bank, it is necessary to ensure that the glueballs put into condenser is evenly distributed in recirculated water as possible
On section.
Invention content
In order to solve the above technical problems, present invention offer is a kind of to be evenly distributed in recirculated water by the glueballs in condenser
The ball-dividing device of electric power plant condenser ball cleaning system on section is efficiently solved among current plant condenser cooling tube bundle
The problem of local repeated washing, periphery can not be cleaned.
The uniform ball feeding device of the electric power plant condenser ball cleaning system of the present invention is responsible for including several release, with sending
Several release branch pipes that ball supervisor is connected, one end of each release branch pipe are connected with release supervisor's port of export, release branch pipe
The other end be equipped with spray ball mouth, pass through release branch pipe and spray the setting of ball mouth so that is equal from the glueballs launched of spray ball mouth
Even each region for being distributed in circulating water inlet cross section.
Further, the port of export of the release supervisor passes through the tube wall of circulating water inlet, extend into recirculated water water inlet
Inside pipe, the one end of outlet section radially respectively with release branch pipe is connected, and spray ball mouth is located at the other end of release branch pipe.
Further, 10-90 ° of angle is kept between two adjacent release branch pipes.
Further, each release branch pipe is parallel with circulating water inlet cross section.
Further, the port of export of the release supervisor passes through the tube wall of circulating water inlet, stretches into circulating water inlet
Interior release main leg is connected with release branch pipe, and the release branch pipe is made of the different annular release branch pipe of two radiuses, ring
It is rigid connection between shape release branch pipe and release supervisor, multiple spray ball mouths are circumferentially distributed on annular release branch pipe, wherein
One spray ball mouth is mounted on the center of circulating water inlet.
Further, the port of export of the release supervisor is directly connected with release branch pipe, and each release branch pipe, which is each passed through, to follow
The tube wall of ring water water inlet pipe, is stretched into circulating water inlet, every release branch pipe in circulating water inlet exterior there are one valve,
It sprays ball mouth and is mounted on exit of the release branch pipe inside circulating water inlet, it is horizontal that each spray ball mouth is located at circulating water inlet respectively
The different zones in section.
Further, the aperture of the internal diameter of release branch pipe and spray ball mouth, at least more than glueballs outer diameter.
Further, the quantity of release supervisor is 1-10 roots.
Further, the quantity of spray ball mouth is 1-50, and spray ball mouth opening is towards recirculated water inflow direction or along following
Ring flow is to or with circulating water flow to angled.
Further, the quantity of release branch pipe is 1-20 roots.
In the present invention, the spray ball mouth on each release branch pipe is evenly distributed as far as possible in the cross section of circulating water inlet
On, circulating water inlet cross section is divided into several regions, there are one spray ball mouths in each region, will be responsible for originally from release
The glueballs for being emitted to circulating water inlet kernel of section is concentrated, dispersion is changed to and is launched by each spray ball mouth, glue can be made in this way
Ball is uniformly distributed on the cross section of circulating water inlet.To condenser carry out rubber ball cleaning when, by Rubber ball pump conveying Lai
For cleaning the glueballs of Cooling Tubes of Condenser, through release, supervisor enters in circulating water inlet, then except minority is directly through sending
It is that remaining respectively enters each release branch pipe that ball supervisor's port of export spray ball mouth, which enters circulating water inlet center, is then sent through being located at
Each spray ball mouth on ball branch pipe enters each region of circulating water inlet cross section.Then all glueballs are in recirculated water
Under carrying, into condenser, Cooling Tubes of Condenser is cleaned.Due to it is all spray ball mouths be distributed approximately evenly in recirculated water into
On water pipe cross section, so distribution of the glueballs in recirculated water is also in uniform state, it can be equal to Cooling Tubes of Condenser Shu Jinhang
Even cleaning.
In conclusion this system has the characteristics that simple in structure, glueballs arrival region is controllable, cleaning performance is good, solve
The problem of local repeated washing, periphery can not be cleaned among plant condenser cooling tube bundle at present, obtains condenser heat transfer property
To being obviously improved, the economy of entire unit is improved.
Description of the drawings
Fig. 1 is the original release method rubber ball cleaning system schematic diagram of plant condenser；
Fig. 2 is the uniform ball feeding device front view of the electric power plant condenser ball cleaning system of the present invention；
Fig. 3 is the bottom view of Fig. 2；
Fig. 4 is the schematic diagram of uniform ball feeding device in embodiment 2；
Fig. 5 is the bottom view of Fig. 4；
Fig. 6 is the schematic diagram of uniform ball feeding device in embodiment 3.
1st, release is responsible for；2nd, release branch pipe；3rd, ball mouth is sprayed；4th, circulating water inlet；5th, condenser；6th, recirculated water is discharged
Pipe；7th, ball screen；8th, it loses pump；9th, spherical tank is stored up；10th, valve.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of the present invention is described in further detail, so as to can be more
The spirit of the present invention is understood well.The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
Embodiment 1
Referring to shown in Fig. 1, Fig. 2 and Fig. 3, the present invention provides a kind of uniform release dress of electric power plant condenser ball cleaning system
It puts, including release supervisor 1, release branch pipe 2, spray ball mouth 3, circulating water inlet 4.
Release supervisor 1 input end with storage spherical tank 9 be connected, store up spherical tank 9 by pipeline successively with the pump 8 of losing of upstream, receipts
Net 7 is connected；Ball screen 7 is series on condenser circulating water outlet pipe 6, and circulating water inlet 4 and circulating water outlet pipe 6 are distinguished
It is connected with the inlet and outlet of condenser 5.
The port of export of release supervisor 1 passes through the tube wall of circulating water inlet 4, extend into 4 inside center of circulating water inlet
Near, then bending be approximately axially consistent with circulating water inlet 4, outlet section radial direction respectively with four release branch pipes 2
It is connected, exit end face bore reduces, and there are one spray ball mouths 3 for connection.Four release branch pipes being connected with release 1 outlet section of supervisor
2 generally remain 90 ° of angles each other, equipped with 2 spray ball mouths on every release branch pipe, each release branch pipe 2 substantially with recirculated water into
Water pipe cross section is parallel, and all spray ball 3 export directions of mouth are opposite with recirculated water inflow direction.
The spray ball mouth opening of the uniform ball feeding device can be towards recirculated water inflow direction, can also be along circulating water flow
To or with circulating water flow to angled.
The uniform ball feeding device can be covered by 1-10 to be formed, with different angle and location arrangements in circulating water inlet.
Operating procedure is as follows：Ball screen 7, which is placed in, receives spherical state, and a certain number of glueballs are placed in storage spherical tank, start glue
The glueballs stored up in spherical tank 9 is sent into through release supervisor 1 in circulating water inlet 4 by ball pump 8, then except a small number of glueballs from mounted on
The spray ball mouth that release is responsible on 1 exit end face enters outside circulating water inlet road, and most of glueballs respectively enters each release branch pipe
2, and finally sprayed from the spray ball mouth 3 on release branch pipe 2, it into circulating water inlet, mixes, is carried with recirculated water
Into downstream Cooling Tubes of Condenser, cooling tube is cleaned.The glueballs for flowing through cooling tube then enters along circulating water outlet pipe
Ball screen 7 is recovered in storage spherical tank 9.According to actual motion needs, can repeat the above process, until tube bank cleaning completely,
Until cleaning.
Embodiment 2
Referring to shown in Fig. 1, Fig. 4 and Fig. 5, the present invention provides a kind of uniform release dress of electric power plant condenser ball cleaning system
It puts, including release supervisor 1, release branch pipe 2, spray ball mouth 3, circulating water inlet 4.
Release supervisor 1 input end with storage spherical tank 9 be connected, store up spherical tank 9 by pipeline successively with the pump 8 of losing of upstream, receipts
Net 7 is connected；Ball screen 7 is series on condenser circulating water outlet pipe 6, and circulating water inlet 4 and circulating water outlet pipe 6 are distinguished
It is connected with the inlet and outlet of condenser 5.The other end of release supervisor 1 passes through the tube wall of circulating water inlet 4, extend into and follows
Length inside ring water water inlet pipe is more than circulating water inlet radius.The release main leg in circulating water inlet is stretched into, respectively
The annular release branch pipe 2 different from two radiuses is connected, the centers of two annular branch pipes 2 substantially in circulating water inlet 4
The heart is consistent.The circumferentially distributed spray ball mouth 3 for having quantity different on each annular branch pipe 2, between annular branch pipe 2 and release supervisor 1
For rigid connection.The release main tube part extending into circulating water inlet 4 is also equipped with spray ball mouth 3, one of spray ball mouth
It is installed substantially at the center of circulating water inlet 4.
The plane of each formation of release branch pipe 2 and each spray ball mouth 3 export the plane formed, substantially horizontal with circulating water inlet
Section is parallel.All spray ball mouth export directions are opposite with recirculated water inflow direction.
The spray ball mouth opening of the uniform ball feeding device can be towards recirculated water inflow direction, can also be along circulating water flow
To or with circulating water flow to angled.
The uniform ball feeding device can be covered by 1-10 to be formed, with different angle and location arrangements in circulating water inlet.
Operating procedure is as follows：Ball screen 7, which is placed in, receives spherical state, and a certain number of glueballs are placed in storage spherical tank, start glue
The glueballs stored up in spherical tank 9 is sent into through release supervisor 1 in circulating water inlet 4 by ball pump 8, then except a small number of glueballs from mounted on
Spray ball mouth on release supervisor 1 enters outside circulating water inlet road, and most of glueballs respectively enters each release branch pipe 2, and final
It is sprayed from the spray ball mouth 3 on release branch pipe 2, into circulating water inlet, is mixed with recirculated water, be carried into downstream and coagulate
In vapour device cooling tube, cooling tube is cleaned.The glueballs for flowing through cooling tube then enters ball screen 7 along circulating water outlet pipe,
It is recovered in storage spherical tank 9.It according to actual motion needs, can repeat the above process, until tube bank cleaning is complete, cleaning is
Only.
Embodiment 3
Referring to shown in Fig. 1 and Fig. 6, the present invention provides a kind of uniform ball feeding device of electric power plant condenser ball cleaning system,
Including release supervisor 1, release branch pipe 2, spray ball mouth 3, circulating water inlet 4 and valve 10.
Release supervisor 1 input end with storage spherical tank 9 be connected, store up spherical tank 9 by pipeline successively with the pump 8 of losing of upstream, receipts
Net 7 is connected；Ball screen 7 is series on condenser circulating water outlet pipe 6, and circulating water inlet 4 and circulating water outlet pipe 6 are distinguished
It is connected with the inlet and outlet of condenser 5.
As shown in fig. 6, the end of release supervisor 1 is directly connected with four release branch pipes 2, each release branch pipe 2 is each passed through
The tube wall of circulating water inlet 4 is stretched into circulating water inlet 4.Part of the every release branch pipe 2 outside circulating water inlet 4
Dress there are one valve 10, equipped with ball mouth 3, each ball mouth 3 that sprays is sprayed to distinguish by section port of the release branch pipe 2 inside circulating water inlet
Different zones positioned at 4 cross section of circulating water inlet.
Release branch pipe has a 1-10 roots, and there are one valves 10 for dress on every branch pipe.
There is 1-50 spray ball mouth on release branch pipe.
Spray ball mouth opening can towards recirculated water inflow direction, can also along circulating water flow to or and circulating water flow
To angled.
The uniform ball feeding device can be covered by 1-10 to be formed, with different angle and location arrangements in circulating water inlet.
Operating procedure is as follows：Ball screen 7, which is placed in, receives spherical state, and a certain number of glueballs are placed in storage spherical tank, start glue
Ball pump 8 stores up the glueballs in spherical tank 9 and enters in release supervisor 1, and after be sent into circulating water inlets 4 through four release branch pipes 2,
It is finally sprayed from the spray ball mouth 3 on release branch pipe 2, into circulating water inlet, mixes, be carried into down with recirculated water
It swims in Cooling Tubes of Condenser, cooling tube is cleaned.The glueballs for flowing through cooling tube then enters receipts ball along circulating water outlet pipe
Net 7 is recovered in storage spherical tank 9.
In practical operation, valve 10 can be opened simultaneously on release branch pipe 2, can also close the valve of partial amt
Door opens another part quantity valve, it is to be cleaned after a certain period of time, the valve originally opened is closed, the valve originally closed
It opens, continues to clean certain time.So repeat, until all valves have certain opening time, and restrain cleaning completely,
Until cleaning.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and modification, these improvements and modifications can also be made
Also it should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of uniform ball feeding device of electric power plant condenser ball cleaning system is responsible for (1) including several release, feature exists
In：Several release branch pipes (2) being connected with release supervisor (1) are further included, the release branch pipe (2) is arranged concentrically by two
Annular release branch pipe composition, two annular release branch pipes have different radiuses, and annular release branch pipe is responsible for release
(1) it is rigid connection between, multiple spray ball mouths (3) are circumferentially distributed on annular release branch pipe, one of spray ball mouth installation
In the center of circulating water inlet (4), pass through the setting of release branch pipe (2) and spray ball mouth (3) so that from spray ball mouth
(3) glueballs launched is evenly distributed on each region of circulating water inlet (4) cross section；The release supervisor (1) goes out
Mouth end passes through the tube wall of circulating water inlet (4), stretches into the release main leg in circulating water inlet and release branch pipe (2) phase
Even.
2. the uniform ball feeding device of electric power plant condenser ball cleaning system according to claim 1, it is characterised in that：It is described
The internal diameter of release branch pipe (2) and the aperture of spray ball mouth (3), at least more than glueballs outer diameter.
3. the uniform ball feeding device of electric power plant condenser ball cleaning system according to claim 1, it is characterised in that：It is described
The quantity of release supervisor (1) is more than 1 and less than or equal to 10.
4. the uniform ball feeding device of electric power plant condenser ball cleaning system according to claim 1, it is characterised in that：It is described
The quantity for spraying ball mouth (3) be more than 1 and less than or equal to 50, spray ball mouth (3) be open towards recirculated water inflow direction or along
Circulating water flow is to or with circulating water flow to angled.
5. the uniform ball feeding device of electric power plant condenser ball cleaning system according to claim 1, it is characterised in that：It is described
The quantity of release branch pipe (2) is more than 1 and less than or equal to 20.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510204627.3A CN104776753B (en) | 2015-04-27 | 2015-04-27 | The uniform ball feeding device of electric power plant condenser ball cleaning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510204627.3A CN104776753B (en) | 2015-04-27 | 2015-04-27 | The uniform ball feeding device of electric power plant condenser ball cleaning system |
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| CN104776753A CN104776753A (en) | 2015-07-15 |
| CN104776753B true CN104776753B (en) | 2018-06-12 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307448B (en) * | 2018-09-14 | 2020-02-14 | 江苏常丰节能科技有限公司 | Condenser rubber ball accurate cleaning device and method and condenser |
| CN110274514B (en) * | 2019-06-24 | 2020-11-03 | 东阳市刚刚电器销售有限公司 | Rubber ball cleaning and distributing device of heat exchanger |
| CN113418417B (en) * | 2021-07-17 | 2023-01-31 | 连云港佑丰电力设备有限公司 | Reinforced condenser rubber ball cleaning equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2688354Y (en) * | 2003-12-11 | 2005-03-30 | 程朝卿 | Assistant purifier of secondary filtering net |
| JP2008502871A (en) * | 2004-06-15 | 2008-01-31 | ウォン シール セオル | Heat exchanger cleaning device using ejector |
| CN203190879U (en) * | 2013-04-25 | 2013-09-11 | 北京君盛能源科技有限公司 | Automatic shell-and-tube heat exchanger cleaning device with flowing rubber balls |
| CN203298650U (en) * | 2013-05-15 | 2013-11-20 | 山东青能动力股份有限公司 | Rubber ball cleaning system of condenser |
| CN204612582U (en) * | 2015-04-27 | 2015-09-02 | 中国大唐集团科学技术研究院有限公司 | The even ball feeding device of electric power plant condenser ball purging system |
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