CN202470880U

CN202470880U - Ultrasonic antiscale descaling apparatus of condenser in power plant

Info

Publication number: CN202470880U
Application number: CN2011205072811U
Authority: CN
Inventors: 温小萍; 张素梅; 盛伟; 万剑峰; 陈小砖; 马明; 余朕朕; 王科; 李果
Original assignee: Henan University of Technology
Current assignee: Henan University of Technology
Priority date: 2011-12-08
Filing date: 2011-12-08
Publication date: 2012-10-03
Anticipated expiration: 2021-12-08

Abstract

The utility model provides an ultrasonic antiscale descaling apparatus of a condenser in a power plant. The ultrasonic antiscale descaling apparatus comprises the condenser; an end cap of an intake chamber of the condenser is provided with an amplitude transformer; an end cap of the amplitude transformer is connected with the end cap of the intake chamber; the front end of the amplitude transformer is disposed in the intake chamber; the rear end of the amplitude transformer is connected with a transducer, which is connected with an ultrasonic generator through a cable; and the ultrasonic generator is connected with a controller through a cable. The transducer is connected with the ultrasonic generator through the first cable, and the ultrasonic generator is connected with the controller through the second cable. The ultrasonic generator generates a high-frequency current which is converted to high-frequency vibration via the transducer; after being amplified by the amplitude transformer, the high-frequency vibration works on cooling water of the condenser for generating a plurality of minute bubbles in liquid; and the shock wave generated upon breakage of the bubbles can destroy soundness in carbonization sediment and bonding between the carbonization sediment and metal, thereby removing scale on inner walls of copper pipes of the condenser.

Description

Plant condenser ultrasonic antiscaling apparatus for eliminating sludge

Technical field

The utility model belongs to condenser working service technical field, is specifically related to a kind of plant condenser ultrasonic antiscaling apparatus for eliminating sludge.

Background technology

Condenser is an important component part of Steam Turbine, and its effect is that the turbine discharge cooling is condensed into water, forms high vacuum, the steam that gets into steam turbine can be expand into far below atmospheric pressure do work more.The quality of condenser service behaviour is the security and the economy of the whole unit of influence directly.

Condenser vacuum is the leading indicator that characterizes the condenser operating characteristic, also is one of principal element that influences the Steam Turbine safety and economic operation.Influence the factor more complicated of condenser vacuum, comprise the characteristic of condenser heat-transfer character, condenser duty, copper pipe clean rate, coolant water temperature, cooling water inflow, cooling water system etc.For a condensing-type unit that draws gas that has put into operation; The film-cooled heat of condenser, cooling water inflow, condenser duty etc. are basic fixed; The characteristic of cooling water system, the type of cooling, coolant water temperature also receive the restriction of factors such as the geographical position, seasonal climate of power plant, change also difficulty relatively of above-mentioned factor through artificial mode.Comparatively speaking; Dirty and the fouling of condenser copper tube water side has more artificial room for improvement; Dirty and the fouling of condenser copper tube water side simultaneously also is the modal reason that causes condenser vacuum to worsen, and is the more economically viable approach that keeps the condenser high vacuum so improve and keep higher copper pipe clean rate.

At present domestic and international existing condenser descaling method mainly contain manual work disclose wash, modes such as glueballs cleaning, Cleaning by High Pressure Water Jet, Chemical cleaning, wherein the glueballs cleaning way is the most general.But these cleaning ways all exist shortcoming separately: manual work is disclosed to wash and can only be removed soft dirt and a spot of hard scale, removes not thoroughly, and labour intensity is big, needs to shut down, and can't reach gratifying effect.Glueballs clean to adopt the rubber ball system mode parallelly connected with circulation, need often come into operation, in case drop into untimelyly, form hard scale and just can not make the glueballs cleaning play effect, and system complex, ball collecting rate is low.Though it is the Cleaning by High Pressure Water Jet method can reach certain cleaning performance, very serious to the erosion of copper pipe.Water under high pressure is prone to cause the copper pipe distortion simultaneously, and to stopping up serious copper pipe DeGrain, adds this equipment manufacturing cost height, is easy to damage, and is difficult to defectives such as maintenance, has restricted the use of this method.Chemical cleaning generally all adopts the method for pickling, but Chemical cleaning need be shut down equally, chemical substance causes certain corrosion injury, operation cycle length, expense than higher to pipeline and equipment, simultaneously the chemical waste fluid contaminated environment.Therefore, develop a kind of plant condenser efficient, easy to operate, be the major issue that guarantees power plant safety, economical production to the harmless descaling and antiscaling method of equipment.

Summary of the invention

In sum, in order to overcome the deficiency of prior art problem, the utility model provides a kind of plant condenser ultrasonic antiscaling apparatus for eliminating sludge; It is to produce high frequency electric through supersonic generator; High frequency electric converts dither into through transducer, and horn acts in the condenser cooling water after dither is amplified, and causes forming in the liquid many small bubbles; The shock wave that utilizes collapse of bubbles to produce; Destroy the inner fastness of carbonization deposit, destroyed the bonding between carbonization deposit and the metal, reach the purpose of removing the dirt on the condenser copper tube inwall.

For solving the problems of the technologies described above, the technical scheme of the utility model is achieved in that

A kind of plant condenser ultrasonic antiscaling apparatus for eliminating sludge; Comprise condenser, wherein: the intake chamber end cap of described condenser is provided with horn, and the horn end cap is connected with the intake chamber end cap; The horn front end is arranged in the intake chamber; The horn rear end is connected with transducer, and transducer connects supersonic generator through first cable, and supersonic generator connects controller through second cable.

Further, described horn end cap is connected with the intake chamber end cap through bolt.

Further, described transducer is connected through screw with horn.

The beneficial effect of the utility model is:

1, the utility model is to produce high frequency electric through supersonic generator; High frequency electric converts dither into through transducer, and horn acts in the condenser cooling water after dither is amplified, and causes forming in the liquid many small bubbles; The shock wave that utilizes collapse of bubbles to produce; Destroy the inner fastness of carbonization deposit, destroyed the bonding between carbonization deposit and the metal, reach the purpose of removing the incrustation scale on the condenser copper tube inwall.

2, the utility model has been realized the online scale removal of plant condenser, antiscale, and condenser copper tube inwall dirt is thoroughly removed, and condenser heat exchange effect is significantly improved, and has practiced thrift cost of electricity-generating.Simultaneously, the design of remote time control, it is simple and convenient to have guaranteed that this kind plant condenser descaling method scene uses, and has reduced plant condenser scale removal, antiscale labour intensity.

Description of drawings:

Fig. 1 is the structural representation of the utility model;

Fig. 2 looks sketch map for the left side of the utility model Fig. 1;

Fig. 3 is that the utility model transducer is installed the sketch map that is connected with horn;

Fig. 4 is that the A of the utility model Fig. 3 is to sketch map.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is done further to specify.

Like Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, a kind of plant condenser ultrasonic antiscaling apparatus for eliminating sludge comprises condenser 20; The intake chamber end cap 12 of condenser 20 is provided with horn 6; Horn end cap 19 is connected with intake chamber end cap 12 through bolt 8, and horn 6 front ends are arranged in the intake chamber 7, and horn 6 rear ends are connected through screw 22 with transducer 9; Transducer 9 connects supersonic generator 13 through first cable 11, and supersonic generator 13 connects controller 14 through second cable 21.

During use, turbine exhaust steam in electric power plant gets into from the steam inlet 1 of condenser 20, in condensing space 18, is condensed into condensate by the recirculated cooling water in the condensing copper pipe 17, is flowed to hot well 4.Recirculated cooling water gets into the intake chamber 7 of condenser 20 from water inlet pipe 10 roads, get into then in the condensing copper pipe 17, through after after hydroecium 3 turns back, from water-supplying chamber 16, outlet pipe 15 outflows.Dividing plate 5 separates intake chamber 7 with water-supplying chamber 16, condensing copper pipe 17 rear and front ends are through tube sheet 2 fixing, sealings.Remote controllers 14 are installed in power plant's central station of floating dock, so that operations staff operation, and link to each other with supersonic generator 13 through second cable 21.Supersonic generator 13 is with 380V, and the industrial power inversion frequency of 50HZ is higher than the high-frequency ac current of 20KHZ, and supersonic generator 13 also is connected through first cable 11 with transducer 9.Transducer 9 closely is connected with horn end cap 19 through middle screw 22, and horn end cap 19 is fixed on through bolt 8 on the intake chamber end cap 12 of condenser 20, and horn 6 is with 19 welding of horn end cap.Transducer 9 converts high-frequency ac current to dither; To vibrate through horn 6 and to amplify and act in condenser 20 cooling waters; Make to produce many micro-bubbles in the liquid, bubble is compressed after getting into condensing copper pipe 17, and numerous air-bubble moment breaks; The great shock wave of produce power, formation can be removed " cavitation effect " of condensing copper pipe 17 inwall dirts.Simultaneously, ultrasonic vibration causes dirt grain material adhesive force on tube wall to reduce, and also plays anti-scaling action.

Be noted that; The above embodiment is to the explanation of the utility model technical scheme and unrestricted; Other modification that is equal to replacement or makes of affiliated technical field those of ordinary skill according to prior art; As long as do not exceed the thinking and the scope of the utility model technical scheme, all should be included within the desired interest field of the utility model.

Claims

1. plant condenser ultrasonic antiscaling apparatus for eliminating sludge; Comprise condenser (20); It is characterized in that: the intake chamber end cap (12) of described condenser (20) is provided with horn (6); Horn end cap (19) is connected with intake chamber end cap (12), and horn (6) front end is arranged in the intake chamber (7), and horn (6) rear end is connected with transducer (9); Transducer (9) connects supersonic generator (13) through first cable (11), and supersonic generator (13) connects controller (14) through second cable (21).

2. plant condenser ultrasonic antiscaling apparatus for eliminating sludge according to claim 1 is characterized in that: described horn end cap (19) is connected with intake chamber end cap (12) through bolt (8).

3. plant condenser ultrasonic antiscaling apparatus for eliminating sludge according to claim 1 is characterized in that: described transducer (9) is connected through screw (22) with horn (6).