CN201163168Y - Glue ball cleaning automatic monitoring apparatus of electric power plant condenser - Google Patents

Abstract

A rubber ball cleaning automatic monitoring device of an electric power plant steam condenser comprises a shell and a monitoring control circuit. The automatic monitoring device has the following technical key points that: a transparent window is packaged on the side wall of the shell; a video camera or a video head in an image collection unit of the monitoring control circuit is arranged on one side over against the transparent window of the shell; moreover, the shooting lens central line of the video camera or the video head is perpendicular to the plane in which the transparent window exists; the circumference of the window is provided with lamp sources; rubber ball continuous images, which are collected by the video camera or the video head and stored in chronological order, are transmitted to a computer-controlled image processing unit of the monitoring control circuit so as to carry out processing analysis; moreover, the number and the abrasion degree of collected rubber balls are judged in real time, and detection results are displayed by an alarm display unit. The rubber ball cleaning automatic monitoring device has simple structure, reasonable design and convenient operation, and can realize automatic monitoring of the number of collected rubber balls inside a circulating pipeline and the abrasion degree of the rubber balls; moreover, the automatic monitoring device can remarkably improve the cleaning quality of a steam condenser and reduce the labor intensity of workers so as to reach the best cleaning effect.

Description

Electricity plant condenser ball cleaning automatic monitoring device

Technical field

The utility model relates to the monitoring device that a kind of condenser cleans usefulness, particularly a kind ofly is used for checking the glueballs quantity of electric power plant condenser ball cleaning device circulation line and the automated watch-keeping facility of abrasion condition thereof.

Background technology

At present, power plant needs often condenser to be cleaned in power generation process, to prevent that condenser cooling tube wall from dirt occurring and influencing the condenser heat exchange efficiency, cause unit vacuum to reduce, increase gross coal consumption rate, tube wall will have a strong impact on cleaning device and normally move if fouling occurring stops up.Most of power plant mainly are to adopt ball cleaning apparatus of condenser to the cleaning of condenser fouling, and ball cleaning apparatus of condenser is made up of parts such as ball screen, glueballs delivery pump, ball collector, controller, glueballs and circulation lines.It periodically will push through cooling tube greater than the cleaning glueballs of condenser cooling tube internal diameter with water under high pressure, and cooling tube is cleaned repeatedly, clean the interior dirt of condenser cooling tube and take impurity out of.Thereby can reach and prolong cooling tube service life, improve power plant economic benefit, support equipment purpose of safe operation.

Existing domestic best ball cleaning apparatus also can only guarantee 95% ball collecting rate, and can the ball cleaning apparatus cleaning effect reach best, and whether capacity, glueballs radius be enough big to depend on the glueballs number.Because the incompleteness of mechanical device, ball cleaning apparatus causes the obstruction of glueballs in the cleaning process always for some reason or other, the ball phenomenon occurs losing, perhaps causes the glueballs wearing and tearing, and these have all directly influenced the heat exchange effect.At present, mostly adopt the method for regular hand inspection to judge whether need add ball or change the shuttle in the domestic power plant, time-consuming, the effort of this method, error is bigger.Therefore, for improving the economic benefit and the automatization level of power plant, it is CN2553246Y " intelligent ball cleaning apparatus of condenser " that patent gazette discloses notification number, and it is to have set up pressure pressure difference transmitter, temperature survey transmitter, dirtiness resistance monitor, the multimedia computer that links to each other with signal cable on existing ball cleaning apparatus.This device is by monitoring the fouled condition of condenser pipe in real time, composite factors such as the economic loss that causes according to fouling, cleaning charge, calculate the optimal clean cycle, reduced labour intensity, make condenser be in efficient running status all the time, but still the difficult problem that can't solve that glueballs to existing ball cleaning apparatus reclaims that quantity checks and the glueballs degree of wear is detected.

According to reports, abroad monitoring is studied to glueballs quantity: researched and developed as German Taprogge (reaching the utmost point) company the glueballs by the glueballs counting is reclaimed routine, between original glueballs cleaning equipment Rubber ball pump and ball collector, dispose infrared sensor, each glueballs by the time all can give pulse triggering signal of infrared sensor, and then reach purpose to glueballs counting.In addition, also developed the glueballs cleaning performance monitor that the variation that utilizes glueballs flow velocity and condensation flow speed ratio value detects the pipe interior degree of cleaning.The domestic power plant that has is the ball cleaning apparatus of the German Taprogge of a complete set of replacing company on its generating set.As Japanese Hitachi (Hitachi) company at its [Hitachi's review] (Vol.54 (2005), No.3) delivered one piece in the publication and be entitled as the article of " high-performance condenser piping purging system-advanced person's glueballs recovery technology ", original ball cleaning apparatus has been carried out a series of internal mechanical transformation, have additional Patting type glueballs filter and ball-dirt separator, develop the ball cleaning apparatus of new construction, the glueballs rate of recovery has reached 100% basically.But above-mentioned external product ubiquity can't detect the problem of the glueballs degree of wear automatically.However, because of the product of this two company all is to sell according to the purging system of the whole series in China, the glueballs that does not go out separately in the sale system reclaims parts such as routine or Patting type glueballs filter, so it is quite expensive not only to purchase valency, and power plant also has to change other not entirely ineffective cleaning device, caused the great wasting of resources.

The utility model content

The purpose of this utility model provides a kind of electricity plant condenser ball cleaning automatic monitoring device, it overcomes the inspection of existing apparatus existence effectively and reclaims problems such as glueballs quantity and detection glueballs wearing and tearing difficulty, it is simple in structure, reasonable in design, easy to operate, can realize monitoring automatically the quantity and the glueballs degree of wear thereof of the recovery glueballs in the circulation line significantly improving the Summary of clean condenser quality, reduce intensity of workers, in the hope of reaching best cleaning performance.

The purpose of this utility model is achieved in that this device comprises housing and the Monitoring and Controlling loop thereof that is connected with the glueballs circulating line of ball cleaning apparatus by two end flanges, its technical essential is: described housing sidewall encapsulation transparent window, video camera in the image acquisition units in described Monitoring and Controlling loop or video heads are arranged on the side over against the housing transparent window, and make the plane of the taking lens center line of video camera or video heads perpendicular to described transparent window place, the lighting position that helps taking around the housing transparent window is provided with the lamp source, the computer-controlled graphics processing unit that the glueballs consecutive image of storage in chronological order that video camera or video heads are collected is transferred to described Monitoring and Controlling loop carries out Treatment Analysis, real-time judge reclaims the quantity and the degree of wear thereof of glueballs, utilizes the alarm indication unit in described Monitoring and Controlling loop to show testing result.

The glueballs consecutive image of storage in chronological order that the video camera of the image acquisition units in described Monitoring and Controlling loop or video heads collect, be transferred to the computer-controlled graphics processing unit in Monitoring and Controlling loop, the glueballs consecutive image of storage is in chronological order removed per two width of cloth repeating part between the adjacent image in proper order by the image concatenation module, remove noise by the image pretreatment module again, cut apart module through image and obtain with clearly defined objective split image, carry out location, glueballs position by the glueballs locating module then, promptly obtain the quantity and the degree of wear thereof of glueballs, utilize the alarm indication unit to show testing result.

Because the utility model need not to change the ball cleaning apparatus of existing plant condenser, just in the circulation line of former glueballs cleaning device, the housing of this device flange by its two ends is assembled in Rubber ball pump and has between the receipts ball chamber of ball screen, just can obtain the quantity of each recovery glueballs of supplying with ball collector and the image of the degree of wear thereof, again through the computer-controlled graphics processing unit Treatment Analysis in Monitoring and Controlling loop, can utilize the alarm indication unit to show testing result, so it is simple in structure, reasonable in design, easy to operate, not only can solve the glueballs that imported product do not go out separately in the sale system and reclaim parts such as routine, the defective of the great wasting of resources that causes, and can overcome inspection that existing apparatus exists effectively and reclaim glueballs quantity and detect problem such as glueballs wearing and tearing difficulty.Because of the place plane of the video camera in the image acquisition units of this device perpendicular to the housing transparent window, so under the lamp source that guarantees shooting environmental brightness cooperates, be easy to by by camera acquisition to the graphics processing unit that is transferred in the computer in Monitoring and Controlling loop of the glueballs consecutive image of storage in chronological order carry out Treatment Analysis, and utilize the alarm indication unit to show testing result.Therefore, use this device to significantly improve the Summary of clean condenser quality, reduce intensity of workers, in the hope of reaching best cleaning performance, improve the vacuum of generating set significantly, reduce the turbine discharge loss effectively, reduce the specific steam consumption of steam turbine, advance further carrying out of energy-saving and cost-reducing work.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is a user mode schematic diagram of the present utility model.

Fig. 2 is a kind of concrete structure schematic diagram of the present utility model.

Sequence number explanation among the figure: 1 condenser, 2 glueballs nozzles, 3 water circulating pumps, 4 have the receipts ball chamber of ball screen, 5 monitoring devices, 6 Rubber ball pumps, 7 glueballs conveyance conduits, 8 ball collectors, glueballs conveyance conduit 9, image acquisition units 10, lamp source 11, video camera 12, transparent window 13, glueballs 14, flange 15, graphics processing unit 16, image concatenation module 17, image pretreatment module 18, image is cut apart module 19, glueballs locating module 20, alarm indication unit 21, display screen 22, loudspeaker 23.

The specific embodiment

Describe concrete structure of the present utility model in detail according to Fig. 1 and embodiment.This device comprises housing and the Monitoring and Controlling loop thereof that is connected with glueballs circulating line 7 in the existing ball cleaning apparatus by two end flanges 15.The ball cleaning apparatus of existing condenser 1 generally all is made up of parts such as the receipts ball chamber 4 that has ball screen, Rubber ball pump 6, glueballs circulating line 7, ball collector 8, glueballs nozzles 2.It will push through cooling tube greater than the cleaning glueballs of condenser 1 cooling tube internal diameter by the effect of High-Pressure Water, and cooling tube is cleaned repeatedly, clean the interior dirt of condenser cooling tube and take impurity out of.

The position of this monitoring device 5 just is arranged on Rubber ball pump 6 and has between the receipts ball chamber 4 of ball screen, can observe the quantity and the glueballs degree of wear thereof that each supplies with the recovery glueballs of ball collector to guarantee this monitoring device.The specification of its middle shell and two end flanges 15 thereof, shape should be determined according to actual instructions for use.Sidewall at housing encapsulates the transparent window 13 that is made of clear optical glass or other transparent material.Video camera or video heads 12 are arranged on the side over against housing transparent window 13, and make the plane of the taking lens center line of video camera or video heads 12 perpendicular to housing transparent window 13 places, and shooting focal length is adjustable.The lighting position that helps taking around housing transparent window 13 is provided with lamp source 11.The glueballs consecutive image of storage in chronological order that video camera or video heads 12 are collected is transferred to computer-controlled graphics processing unit 16 and carries out Treatment Analysis.

The Monitoring and Controlling loop is made up of three big units basically: i.e. image acquisition units 10, computer-controlled graphics processing unit 16, alarm indication unit 21.Wherein:

Image acquisition units 10 comprises the parts such as transparent window 13, lamp source 11, video camera or video heads 12 that are assembled in the housing in the glueballs circulating line 9.

Graphics processing unit 16 can be made of four module in the preferred case: promptly image concatenation module 17, image pretreatment module 18, image are cut apart module 19, glueballs locating module 20.Wherein image concatenation module 17 adopts merging algorithm for images, the glueballs consecutive image of storage in chronological order that video camera or video heads 12 collect is handled, remove the repeating part between adjacent two width of cloth consecutive images, to guarantee that consecutive image does not lack, eliminate the multiimage of having a common boundary the position between continuous two width of cloth images; Image pretreatment module 18 is removed noise by series of preprocessing processes such as greyscale transformation, mean filters; The module 19 of cutting apart image adopts based on the gray-scale map binaryzation transfer pair preliminary treatment of minimal error split plot design to be cut apart except that the image after making an uproar, and obtains with clearly defined objective split image; Utilize the bianry image projective transformation of glueballs locating module 20 then, carry out location, glueballs position, information such as the quantity of real-time judge recovery glueballs and the degree of wear.

Alarm indication unit 21 is made up of display screen 22 and loudspeaker 23.Alarm indication unit 21 is made up of display screen 22 and loudspeaker 23.This display screen 22 is the color display units with display panel, can show information such as the glueballs quantity and the degree of wear.Can also show historical record in addition for staff's verification.This loudspeaker 23 has the ability that produces speech message, is used for sending the warning reminding signal when glueballs quantity or the degree of wear reach the warning limit.

The control principle in Monitoring and Controlling loop is: the glueballs consecutive image of storage in chronological order that the video camera of image acquisition units 10 or video heads 12 collect, the image concatenation module 17 that is transferred to computer-controlled graphics processing unit 16 is removed per two width of cloth repeating part between the adjacent image in proper order, remove noise by image pretreatment module 18 again, cut apart module 19 through image and obtain with clearly defined objective split image, carry out location, glueballs position by glueballs locating module 20 then, promptly obtain the quantity and the degree of wear thereof of glueballs, utilize alarm indication unit 21 to show testing result.Utilize the alarm indication unit in Monitoring and Controlling loop show to reclaim testing results such as the quantity of glueballs and the degree of wear at last.

Claims (2)

1, a kind of electricity plant condenser ball cleaning automatic monitoring device, comprise the housing and the Monitoring and Controlling loop thereof that are connected with the glueballs circulating line of ball cleaning apparatus by two end flanges, it is characterized in that: described housing sidewall encapsulation transparent window, video camera in the image acquisition units in described Monitoring and Controlling loop or video heads are arranged on the side over against the housing transparent window, and make the plane of the taking lens center line of video camera or video heads perpendicular to described housing transparent window place, the lighting position that helps taking around the housing transparent window is provided with the lamp source, the computer-controlled graphics processing unit that the glueballs consecutive image of storage in chronological order that video camera or video heads are collected is transferred to described Monitoring and Controlling loop carries out Treatment Analysis, real-time judge reclaims the quantity and the degree of wear thereof of glueballs, utilizes the alarm indication unit in described Monitoring and Controlling loop to show testing result.

2, electricity plant condenser ball cleaning automatic monitoring device according to claim 1, it is characterized in that: the glueballs consecutive image of storage in chronological order that the video camera of the image acquisition units in described Monitoring and Controlling loop or video heads collect, be transferred to the computer-controlled graphics processing unit in Monitoring and Controlling loop, the glueballs consecutive image of storage is in chronological order removed per two width of cloth repeating part between the adjacent image in proper order by the image concatenation module, remove noise by the image pretreatment module again, cut apart module through image and obtain with clearly defined objective split image, carry out location, glueballs position by the glueballs locating module then, promptly obtain the quantity and the degree of wear thereof of glueballs, utilize the alarm indication unit to show testing result.

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