CN201880599U

CN201880599U - Cathode wire pricked on side of circular pipe for electric precipitator

Info

Publication number: CN201880599U
Application number: CN2010206373351U
Authority: CN
Inventors: 赵哲仪
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-11-28
Filing date: 2010-11-28
Publication date: 2011-06-29
Anticipated expiration: 2020-11-28

Abstract

The utility model discloses a cathode wire pricked on the side of a circular pipe for an electric precipitator, which comprises a circular pipe as a main body of the cathode wire, wherein small sections of small circular pipes inserted into two ends of the circular pipe can form connecting plates after being inserted into flattening punched holes at the rear end part. The cathode wire further comprises bur pieces, wherein the root part of each bur piece is bent into a 180-degree circular arc, the head part of each bur piece is turned by 90 degrees, and two burs are crossly arranged, mutually spot-welded and then spot-welded with the circular pipe. The cathode wire has no spines, and discharge is not strong and is conductive to improving discharge voltage waveform of bur wires and improving current density uniformity, and can not cause cracking of a pipe body and shedding of the connecting plates. The cathode wire has simple structure, is convenient to manufacture, and can save a plurality of process steps and use fewer materials, therefore, the cost is lower.

Description

Electric cleaner stings cathode line with the pipe side

Technical field

The utility model relates to a kind of electric cleaner, relates in particular to a kind of pipe side thorn cathode line that is used for electric cleaner.

Background technology

At present the tubular prickle wire of using on the electric cleaner because tubular big, fastness is good, rigidity is strong, strength of discharge is big, uses very extensively, occupies bigger environmental protection market.Its barrel portion is welded by two semicircles and the steel plate that has a wing plate, and this semi-circular plate is made and required to have special-purpose slitting mill earlier roll bending to be cut into steel band, rolls into semi-circular plate with milling train again.Two semi-circular plates be welded into tubular after, also need in two end circular holes, insert pipe and welding, again the pipe that inserts is flattened as connecting plate between it and the cathode frame.The last prickle plate of putting the shaping of punching out of burn-oning on wing plate, complex manufacturing adds that materials are more thereby production cost is higher.On the other hand, because body is formed by 4 part spot welding and adds that the rapping dynamics is bigger, body has the situation of cracking to take place, and connecting flat tube and body also has the phenomenon that comes off.

The width of tubular prickle wire is big, and is also big with respect to the projected area of positive plate, thereby the capacitance of electric field is big.On the one hand electric capacity makes that greatly the odds ratio of the peak value of voltage waveform of electric field and mean value is less, makes waveform more smooth; The electric energy of electric capacity ambassador electric field storage is big on the other hand, and the impact to rectifier transformer and porcelain insulation spare that the LC vibration causes is also big, and it has negative effect to electric cleaner this respect.

The prickle of tubular prickle wire is very sharp, and it is very strong to discharge, so uniformity of current density is relatively poor, big especially over against the position electric current of spine; Prickle is very sharp to making and overhauling and also make troubles; Also cause dust coking balling-up easily, influence discharge and deashing.For the electric force lines distribution that makes electric field is more even, in semicanal plate upper punch spinule is arranged, so also cause flue gas to enter cathode line inside and draw into two-sided corrosion, can shorten the life-span of cathode line.

The prototype structure of this tubular prickle wire does not have cathode frame, vibrating rod be reversal of the natural order of things on tubular prickle wire, and length is very long, can reach the height about 8 meters of one deck rapping framework, so its requirement of strength is big especially.Now it has made to have the structure of framework into, so and one deck rapping framework to be provided with two layers of cathode line length shorter.Great majority have cathode line linear all more tiny or thiner of framework, and therefore the tubular prickle wire that is installed in the cathode frame there is no need so big intensity.

Price of steel product and labor cost etc. all increase comparatively fast at present, because the cathode line enormous amount, its production difficulty and cost height are bigger to the economic effect relation.So the deficiency of tubular prickle wire and defective add that the complex manufacturing cost is higher, have weakened its market competitiveness to a certain extent.At present environmental protection industry (epi) press for several existing good discharge effect, production costs lower, the bigger market competitiveness, cathode line that reliability is high arranged.

The utility model content

The technical problems to be solved in the utility model provides the electric cleaner that a kind of discharge effect is good, production cost is lower, reliability is high and stings cathode line with the pipe side.

The utility model is achieved through the following technical solutions:

The utility model comprises round steel pipe, two ends of pipe insert one section liner roundlet pipe occiput and flatten into flat as the connecting plate that links to each other with cathode frame, pipe and as the main body of cathode line not only as the part of the connecting plate safety but also reliably of can not coming off not only that neither can ftracture.It is quite firm that some another section that is crushed of the little pipe of insertion liner is still circle.

The utility model also comprises the steel prickle plate that is welded on the pipe, and the afterbody of prickle plate flattens after staying and curving 180 degree circular arcs behind the segment again, head twist 90 degree, the adjustable in length of reversing.

Adopt during entire combination two prickle plates arranged in a crossed manner end to end hold tightly the mutual spot welding of pipe two sides and with pipe spot welding, interval on request evenly is welded on the pipe.

Prickle plate head twist 90 degree make two sides towards positive plate, make the side of prickle plate and head play discharge process, and discharge can be too not strong like this, and discharge current suitably reduces, and the inhomogeneities of current density is made moderate progress.Because its circular arc crest line also can play auxiliary prickle, and it does not break through pipe, can not cause therefore that flue gas enters to cause two-sided corrosion in the pipe, favourable raising service life.

The utility model not only can reduce cost but also be connected firmly designs simplification, thereby can guarantee equipment safety operation.

Description of drawings

Fig. 1 is that electric cleaner stings the cathode line structural representation with the pipe side;

Fig. 2 is the profile (enlarged drawing) of electric cleaner with pipe side thorn cathode line.

The specific embodiment

As shown in Figure 1 and Figure 2, the utility model comprises as the round steel pipe of cathode line main body (1), inserts the little round steel pipe of liner (2) at round steel pipe two ends, the internal diameter of the external diameter of the little round steel pipe of liner (2) and round steel pipe (1) is suitable, inserts that concordant occiput flattens and towards aperture (4).

As depicted in figs. 1 and 2, head twist 90 degree of steel prickle plate (3), root bending become 180 degree circular arcs, the external diameter of the inside radius of its circular arc and round steel pipe (1) is suitable, the arranged in a crossed manner end to end and round steel pipe (1) of two steel prickle plates (3) closely contacts, between two steel prickle plates (3) mutually spot welding and with in round steel pipe (1) spot welding, steel prickle plate (3) is evenly arranged on the round steel pipe (1) at a certain distance.

Claims

1. an electric cleaner stings cathode line with the pipe side, comprise round steel pipe, the little round steel pipe of liner and steel prickle plate, it is characterized in that: the external diameter of the little round steel pipe of described liner and the internal diameter of round steel pipe are suitable, and described round steel pipe two ends are respectively inserted one section liner roundlet steel pipe occiput and flattened into flat.

2. electric cleaner according to claim 1 stings cathode line with the pipe side, it is characterized in that: it comprises that also afterbody bends to the steel prickle plate of 180 degree circular arcs, head twist 90 degree.

3. electric cleaner according to claim 1 stings cathode line with the pipe side, it is characterized in that: it also comprise two steel prickle plates arranged in a crossed manner end to end the mutual spot welding of round steel pipe two sides and with round steel pipe spot welding, the steel prickle plate is arranged on the round steel pipe at a certain distance.