CN104776753A - Uniform ball feeding device of power plant condenser rubber ball washing system - Google Patents
Uniform ball feeding device of power plant condenser rubber ball washing system Download PDFInfo
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- CN104776753A CN104776753A CN201510204627.3A CN201510204627A CN104776753A CN 104776753 A CN104776753 A CN 104776753A CN 201510204627 A CN201510204627 A CN 201510204627A CN 104776753 A CN104776753 A CN 104776753A
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Abstract
The invention belongs to the technical field of a power generation device, and relates to a uniform ball feeding device of a power plant condenser rubber ball washing system. The uniform ball feeding device comprises a plurality of ball feeding main pipes and a plurality of ball feeding branch pipes which are communicated with the ball feeding main pipes, wherein each ball feeding branch pipe is connected to an outlet end of the corresponding ball feeding main pipe, each ball feeding branch pipe is provided with a ball spray nozzle, and by adopting the ball feeding branch pipes and the ball spray nozzles, rubber balls injected by the spray nozzles can be uniformly distributed in each area of the cross section of a circulating water inlet pipe. By adopting the uniform ball feeding device, the problems that a power plant condenser cooling pipe bundle is locally repeatedly washed and the periphery of the cooling pipe bundle cannot be washed can be effectively solved.
Description
Technical field
The invention belongs to generating equipment cooling technology field, particularly relate to a kind of even ball feeding device of electric power plant condenser ball purging system.
Background technology
Steam turbine exhaust pressure is the key factor affecting unit economy, and when other condition is constant, the end difference of condenser directly determines unit exhaust steam pressure, is operating important monitored parameter.The clean-up performance of Cooling Tubes of Condenser water side is the key factor affecting condenser terminal difference, and condenser ball cleaning is the effective measures guaranteed condenser heat transfer effect in on-line operation, reduce heat transfer end difference for steam condenser.
Traditional condenser ball cleaning method and system, as shown in Figure 1, pump 8 of losing will store up glueballs in spherical tank 9 and send in condenser circulating water inlet 4 through release supervisor 1, then condenser 5 is entered with current, circulating water outlet pipe 6 is pooled to after rinsing cooling tube, finally collected by ball screen 7, return in storage spherical tank 9.But often there is uneven, the peripheral cooling tube of tube bank cleaning in actual motion cannot clean and the problem of middle part heat exchanger tube repeated washing, heat exchange property and the effect of condenser do not obtain thorough improvement.
When uneven, that cleaning performance the is poor main cause of tube bank cleaning is traditional ball cleaning apparatus by Rubber ball pump conveying glueballs, glueballs quantity is generally only the 7%-10% of cooling tube quantity, because glueballs pipe diameter is limited, above-mentioned distribution of colloidal spheres, in the circulation line of whole ball cleaning apparatus, can not come with entering in a flash condenser entrance and completely evenly spreading.In fact little with the glueballs quantity entering in a flash condenser tube beam entrance, usually only have and throw in about 30% of glueballs total amount, namely cooling tube quantity about 3%.Therefore, only cleaned less than the cooling tube of 3%, and these cooling tubes obtaining cleaning generally are positioned at the best position of condenser (namely restraining the cooling tube at middle part) at every turn.And, even if ball cleaning apparatus long-play, also only have this part tube bank by repeated washing, and the most cooling tube of condenser can not get cleaning for a long time.
In recent years, 100% pitching rate is taken seriously and utilizes, but equally due to pipe diameter restriction of losing, whole glueballs needs certain hour can enter condenser completely, increasing considerably of glueballs quantity, the time that all glueballs enter condenser also synchronously increases, when this time difference exceedes the time that glueballs flows through in cooling tube, the effect that pitching rate increases just has not existed, and this point has obtained the checking of field trial.Therefore, the uneven halfway phenomenon of tube bank cleaning does not obtain radical change because of the significantly raising of pitching rate.
Domesticly at present occur that compressed air concentrates pitching method and apparatus, but although most glueballs can be sent in release pipeline by the method and device in very short time, but because release pipe caliber compares circulating water inlet, very thin, so glueballs is after release pipe enters circulating water inlet, still concentrate on center, circulating water inlet road, cannot evenly be diffused into whole pipeline, only be carried into downstream by pipeline center's region recirculated water, the consequence that cleaning is uneven must be caused.The uneven halfway Another reason of cooling tube bundle cleaning is the proportion of the proportion of glueballs self and water closely, and the motion of glueballs in water places one's entire reliance upon the rolling action of water.Himself do not have the ability changing self flow trace.Therefore want to change the uneven halfway problem of cooling tube bundle cleaning, must guarantee that the glueballs put in condenser is evenly distributed on recirculated water section as far as possible.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of ball-dividing device that the glueballs in condenser can be evenly distributed in the electric power plant condenser ball purging system on recirculated water section, efficiently solve the problem that in the middle of current plant condenser cooling tube bundle, local repeated washing, periphery cannot be cleaned.
The even ball feeding device of electric power plant condenser ball purging system of the present invention, comprise some release supervisors, the some release arms be connected are responsible for release, one end and the release of each release arm are responsible for the port of export and are connected, the other end of release arm is provided with spray ball mouth, by release arm and the setting of spraying ball mouth, the glueballs launched from spray ball mouth is made to be evenly distributed on the regional of circulating water inlet cross section.
Further, the port of export of described release supervisor, through the tube wall of circulating water inlet, extend into circulating water inlet inside, and its outlet section radial direction is connected with one end of release arm respectively, and spray ball mouth is positioned at the other end of release arm.
Further, 10-90 ° of angle is kept between two adjacent release arms.
Further, each release arm is parallel with circulating water inlet cross section.
Further, the port of export of described release supervisor passes the tube wall of circulating water inlet, the release main leg stretched in circulating water inlet is connected with release arm, described release arm is made up of the annular release arm that two radiuses are different, annular release arm and release be responsible between for being rigidly connected, multiple spray ball mouth is circumferentially distributed on annular release arm, and one of them spray ball mouth is arranged on the center of circulating water inlet.
Further, the port of export of described release supervisor is directly connected with release arm, each release arm is each passed through the tube wall of circulating water inlet, stretch in circulating water inlet, every root release arm is equipped with a valve outside circulating water inlet, spray ball mouth is arranged on the exit of release arm in circulating water inlet inside, and each spray ball mouth lays respectively at the zones of different of circulating water inlet cross section.
Further, the internal diameter of release arm and the aperture of spray ball mouth, be at least greater than glueballs external diameter.
Further, the quantity of release supervisor is 1-10 root.
Further, the quantity of spray ball mouth is 1-50, spray ball mouth opening towards recirculated water inflow direction, or along circulating water flow to, or with circulating water flow to angled.
Further, the quantity of release arm is 1-20 root.
In the present invention, spray ball mouth on each release arm, be evenly distributed as far as possible on the cross section of circulating water inlet, circulating water inlet cross section is divided into some regions, one is had to spray ball mouth in each region, concentrate from release supervisor the glueballs being transmitted into circulating water inlet kernel of section by original, change dispersion into and launched by each spray ball mouth, glueballs can be made like this to be distributed to equably on the cross section of circulating water inlet.When carrying out rubber ball cleaning to condenser, the glueballs for cleaning Cooling Tubes of Condenser transported by Rubber ball pump, through release, supervisor enters in circulating water inlet, except minority directly enters circulating water inlet center through release supervisor port of export spray ball mouth be then, all the other enter each release arm respectively, then enter the regional of circulating water inlet cross section through each spray ball mouth be positioned on release arm.Then all glueballs, under the carrying of recirculated water, enter condenser, clean Cooling Tubes of Condenser.Because all spray ball mouths are roughly evenly distributed on circulating water inlet cross section, so the distribution of glueballs in recirculated water is also in uniform state, evenly can clean Cooling Tubes of Condenser Shu Jinhang.
In sum, native system has the advantages that structure is simple, glueballs arrives at that region is controlled, cleaning performance is good, solve the problem that in the middle of current plant condenser cooling tube bundle, local repeated washing, periphery cannot be cleaned, make condenser heat transfer property be improved significantly, the economy of whole unit is improved.
Accompanying drawing explanation
Fig. 1 is plant condenser original release method rubber ball cleaning system schematic diagram;
Fig. 2 is the even ball feeding device front view of electric power plant condenser ball purging system of the present invention;
Fig. 3 is the upward view of Fig. 2;
Fig. 4 is the schematic diagram of even ball feeding device in embodiment 2;
Fig. 5 is the upward view of Fig. 4;
Fig. 6 is the schematic diagram of even ball feeding device in embodiment 3.
1, release supervisor; 2, release arm; 3, ball mouth is sprayed; 4, circulating water inlet; 5, condenser; 6, circulating water outlet pipe; 7, ball screen; 8, to lose pump; 9, spherical tank is stored up; 10, valve.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail, spirit of the present invention can be understood better.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
Embodiment 1
Shown in Fig. 1, Fig. 2 and Fig. 3, the invention provides a kind of even ball feeding device of electric power plant condenser ball purging system, comprise release supervisor 1, release arm 2, spray ball mouth 3, circulating water inlet 4.
The entrance point of release supervisor 1 is connected with storage spherical tank 9, stores up spherical tank 9 and is connected with the pump 8 of losing of upstream, ball screen 7 successively by pipeline; Ball screen 7 is series on condenser circulating water outlet pipe 6, and circulating water inlet 4 is connected with outlet side with the import of condenser 5 respectively with circulating water outlet pipe 6.
The port of export of release supervisor 1 passes the tube wall of circulating water inlet 4, extend near circulating water inlet 4 inside center, then bending and circulating water inlet 4 is axially roughly consistent, its outlet section radial direction is connected with four release arms 2 respectively, exit end face bore reduces, and is connected with a spray ball mouth 3.Be responsible for release four release arms 2 that 1 outlet section is connected and roughly keep 90 ° of angles each other, 2 spray ball mouths every root release arm are equipped with, each release arm 2 is roughly parallel with circulating water inlet cross section, and all spray ball mouth 3 Way outs are contrary with recirculated water inflow direction.
The spray ball mouth opening of this even ball feeding device can towards recirculated water inflow direction, also can along circulating water flow to, or with circulating water flow to angled.
This even ball feeding device can be overlapped by 1-10 and form, with different angles and location arrangements in circulating water inlet.
Operating procedure is as follows: ball screen 7 is placed in receives spherical state, the glueballs of some is placed in storage spherical tank, start Rubber ball pump 8, glueballs in storage spherical tank 9 is sent in circulating water inlet 4 through release supervisor 1, then except minority glueballs enters except circulating water inlet road from being arranged on the spray ball mouth that release is responsible for 1 exit end face, major part glueballs enters each release arm 2 respectively, and finally spray from the spray ball mouth 3 be positioned at release arm 2, enter in circulating water inlet, mix with recirculated water, be carried in the Cooling Tubes of Condenser of downstream, cooling tube is cleaned.The glueballs flowing through cooling tube enters ball screen 7 along circulating water outlet pipe subsequently, is recovered in storage spherical tank 9.According to actual motion needs, said process can be repeated, till tube bank cleaning is complete, clean.
Embodiment 2
Shown in Fig. 1, Fig. 4 and Fig. 5, the invention provides a kind of even ball feeding device of electric power plant condenser ball purging system, comprise release supervisor 1, release arm 2, spray ball mouth 3, circulating water inlet 4.
The entrance point of release supervisor 1 is connected with storage spherical tank 9, stores up spherical tank 9 and is connected with the pump 8 of losing of upstream, ball screen 7 successively by pipeline; Ball screen 7 is series on condenser circulating water outlet pipe 6, and circulating water inlet 4 is connected with outlet side with the import of condenser 5 respectively with circulating water outlet pipe 6.The other end of release supervisor 1 passes the tube wall of circulating water inlet 4, and the length extending into circulating water inlet inside exceedes circulating water inlet radius.Stretch into the release main leg in circulating water inlet, annular release arms 2 different from two radiuses is respectively connected, and the center of two annular arms 2 is roughly consistent with the center of circulating water inlet 4.Each annular arm 2 is circumferentially distributed with the spray ball mouth 3 that quantity is different, annular arm 2 and release be responsible for 1 between for being rigidly connected.Extend into the release main tube part in circulating water inlet 4, be also provided with spray ball mouth 3, one of them spray ball mouth is roughly arranged on the center of circulating water inlet 4.
The plane that each release arm 2 is formed and each spray ball mouth 3 go out the plane of interruption-forming, roughly parallel with circulating water inlet cross section.All spray ball mouth Way outs are contrary with recirculated water inflow direction.
The spray ball mouth opening of this even ball feeding device can towards recirculated water inflow direction, also can along circulating water flow to, or with circulating water flow to angled.
This even ball feeding device can be overlapped by 1-10 and form, with different angles and location arrangements in circulating water inlet.
Operating procedure is as follows: ball screen 7 is placed in receives spherical state, the glueballs of some is placed in storage spherical tank, start Rubber ball pump 8, glueballs in storage spherical tank 9 is sent in circulating water inlet 4 through release supervisor 1, then except minority glueballs enters except circulating water inlet road from the spray ball mouth be arranged on release supervisor 1, major part glueballs enters each release arm 2 respectively, and finally spray from the spray ball mouth 3 be positioned at release arm 2, enter in circulating water inlet, mix with recirculated water, be carried in the Cooling Tubes of Condenser of downstream, cooling tube is cleaned.The glueballs flowing through cooling tube enters ball screen 7 along circulating water outlet pipe subsequently, is recovered in storage spherical tank 9.According to actual motion needs, said process can be repeated, till tube bank cleaning is complete, clean.
Embodiment 3
Shown in Fig. 1 and Fig. 6, the invention provides a kind of even ball feeding device of electric power plant condenser ball purging system, comprise release supervisor 1, release arm 2, spray ball mouth 3, circulating water inlet 4 and valve 10.
The entrance point of release supervisor 1 is connected with storage spherical tank 9, stores up spherical tank 9 and is connected with the pump 8 of losing of upstream, ball screen 7 successively by pipeline; Ball screen 7 is series on condenser circulating water outlet pipe 6, and circulating water inlet 4 is connected with outlet side with the import of condenser 5 respectively with circulating water outlet pipe 6.
As shown in Figure 6, the end of release supervisor 1 is directly connected with four release arms 2, and each release arm 2 is each passed through the tube wall of circulating water inlet 4, stretches in circulating water inlet 4.The part of every root release arm 2 outside circulating water inlet 4 is equipped with a valve 10, and release arm 2 is equipped with spray ball mouth 3 at the section port of circulating water inlet inside, and each spray ball mouth 3 lays respectively at the zones of different of circulating water inlet 4 cross section.
Release arm has 1-10 root, every root arm is equipped with a valve 10.
Release arm there is 1-50 spray ball mouth.
Spray ball mouth opening can towards recirculated water inflow direction, also can along circulating water flow to, or with circulating water flow to angled.
This even ball feeding device can be overlapped by 1-10 and form, with different angles and location arrangements in circulating water inlet.
Operating procedure is as follows: ball screen 7 is placed in receives spherical state, the glueballs of some is placed in storage spherical tank, start Rubber ball pump 8, storage spherical tank 9 in glueballs enter release supervisor 1 in, and after send in circulating water inlet 4 through four release arms 2, finally spray from the spray ball mouth 3 be positioned at release arm 2, enter in circulating water inlet, mix with recirculated water, be carried in the Cooling Tubes of Condenser of downstream, cooling tube is cleaned.The glueballs flowing through cooling tube enters ball screen 7 along circulating water outlet pipe subsequently, is recovered in storage spherical tank 9.
In practical operation, be positioned at valve 10 on release arm 2 can open simultaneously, also can closed portion quantity valve, open another part quantity valve, after certain hour to be cleaned, by the valve closing originally opened, original valve opening of closing, continue cleaning certain hour.Repetition like this, until all valves all have certain opening time, and tube bank cleaning completely, clean till.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.
Claims (10)
1. the even ball feeding device of an electric power plant condenser ball purging system, comprise some release supervisor (1), it is characterized in that: also comprise the some release arms (2) of to be responsible for (1) with release and to be connected, one end of each release arm (2) is responsible for (1) port of export and is connected with release, the other end of release arm (2) is provided with spray ball mouth (3), by release arm (2) and the setting of spraying ball mouth (3), the glueballs launched from spray ball mouth (3) is made to be evenly distributed on the regional of circulating water inlet (4) cross section.
2. the even ball feeding device of electric power plant condenser ball purging system according to claim 1, it is characterized in that: the port of export of described release supervisor (1) passes the tube wall of circulating water inlet (4), extend into circulating water inlet (4) inner, its outlet section radial direction is connected with one end of release arm (2) respectively, and spray ball mouth (3) is positioned at the other end of release arm (2).
3. the even ball feeding device of electric power plant condenser ball purging system according to claim 2, is characterized in that: keep 10-90 ° of angle between two adjacent release arms (2).
4. the even ball feeding device of electric power plant condenser ball purging system according to claim 3, is characterized in that: each release arm (2) is parallel with circulating water inlet cross section.
5. the even ball feeding device of electric power plant condenser ball purging system according to claim 1, it is characterized in that: the port of export of described release supervisor (1) passes the tube wall of circulating water inlet (4), the release main leg stretched in circulating water inlet is connected with release arm (2), described release arm (2) is made up of the annular release arm that two radiuses are different, annular release arm and release are responsible between (1) as being rigidly connected, multiple spray ball mouth (3) is circumferentially distributed on annular release arm, one of them spray ball mouth is arranged on the center of circulating water inlet (4).
6. the even ball feeding device of electric power plant condenser ball purging system according to claim 1, it is characterized in that: the port of export of described release supervisor (1) is directly connected with release arm (2), each release arm (2) is each passed through the tube wall of circulating water inlet (4), stretch in circulating water inlet (4), every root release arm (2) is equipped with a valve 10 outside circulating water inlet (4), spray ball mouth (3) is arranged on the exit of release arm (2) in circulating water inlet inside, each spray ball mouth (3) lays respectively at the zones of different of circulating water inlet (4) cross section.
7. the even ball feeding device of electric power plant condenser ball purging system according to claim 1, is characterized in that: the internal diameter of described release arm (2) and the aperture of spray ball mouth (3), be at least greater than glueballs external diameter.
8. the even ball feeding device of electric power plant condenser ball purging system according to claim 1, is characterized in that: the quantity of described release supervisor (1) is 1-10 root.
9. the even ball feeding device of electric power plant condenser ball purging system according to claim 1, it is characterized in that: the quantity of described spray ball mouth (3) is 1-50, spray ball mouth (3) opening is towards recirculated water inflow direction, or along circulating water flow to, or with circulating water flow to angled.
10. the even ball feeding device of electric power plant condenser ball purging system according to claim 1, is characterized in that: the quantity of described release arm (2) is 1-20 root.
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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 |
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| Application Number | Priority Date | Filing Date | Title |
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| 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 true CN104776753A (en) | 2015-07-15 |
| CN104776753B CN104776753B (en) | 2018-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307448A (en) * | 2018-09-14 | 2019-02-05 | 江苏常丰节能科技有限公司 | A kind of accurate cleaning device of condenser ball, cleaning method and condenser |
| CN110274514A (en) * | 2019-06-24 | 2019-09-24 | 迟倩倩 | A kind of rubber ball cleaning distributor of heat exchanger |
| CN113418417A (en) * | 2021-07-17 | 2021-09-21 | 连云港佑丰电力设备有限公司 | Reinforced condenser rubber ball cleaning equipment |
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| CN2688354Y (en) * | 2003-12-11 | 2005-03-30 | 程朝卿 | Assistant purifier of secondary filtering net |
| WO2005124261A1 (en) * | 2004-06-15 | 2005-12-29 | Won Seal Seol | A heat exchanger aoto cleaning system 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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2015
- 2015-04-27 CN CN201510204627.3A patent/CN104776753B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2688354Y (en) * | 2003-12-11 | 2005-03-30 | 程朝卿 | Assistant purifier of secondary filtering net |
| WO2005124261A1 (en) * | 2004-06-15 | 2005-12-29 | Won Seal Seol | A heat exchanger aoto cleaning system 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 |
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| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307448A (en) * | 2018-09-14 | 2019-02-05 | 江苏常丰节能科技有限公司 | A kind of accurate cleaning device of condenser ball, cleaning method and condenser |
| CN110274514A (en) * | 2019-06-24 | 2019-09-24 | 迟倩倩 | A kind of rubber ball cleaning distributor of heat exchanger |
| CN113418417A (en) * | 2021-07-17 | 2021-09-21 | 连云港佑丰电力设备有限公司 | Reinforced condenser rubber ball cleaning equipment |
| 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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| CN104776753B (en) | 2018-06-12 |
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