Be applicable to the ionization utmost point of heat-treatment oil smoke clearing machine
Technical field
The utility model relates to a kind of Equipment for Heating Processing, relates to a kind of ionization utmost point that is applicable to the heat-treatment oil smoke clearing machine specifically.
Background technology
The present ubiquity of China's heat treatment industry the phenomenon that energy consumption is big, environmental pollution is serious, especially produces the oil smoke that contains complicated components such as carbon black, flue dust in a large number in quenching, the drawing process.Studies show that when the oil heating surpasses 200 ℃, generate the main component methacrylaldehyde of oil smoke, it has strong acid, and nose, eye, throat mucous membrane are had stronger stimulation, can cause breathing problems such as rhinitis, sphagitis, tracheitis; When rusting during to " telling fire ", the oil temperature surpasses 300 ℃, at this moment except producing methacrylaldehyde, also can produce agglomerate, causes slow poisoning, brings out easily and breathes and cancer in digestive system.These oil smoke discharges can work the mischief to health to the workshop, directly discharge outside the workshop then can pollute environment.In addition, the condensate of oil smoke can pollute electric equipment attached on the equipment, causes faults such as electrical equipment arcing or short circuit easily, thereby influences the normal operation of equipment.Therefore, along with the raising that country is realized pay attention to day by day and enterprise's cleaner production of environmental requirement, the collection of heat-treatment oil smoke and processing will progressively be paid attention to.
Existing cooking fume control equipment mainly contains following several types:
1, mechanical type cooking fume control equipment
The mechanical type cooking fume control equipment is the application of mechanical collector on oil smoke is administered, and is the most original treatment facility during oil smoke is administered.Its operation principle is to utilize filtration, inertial collision, absorption or other mechanical separation principle to remove oil, thereby reaches the purpose that purifies flue gas.Main feature be simple in structure, be easy to make, cost is low, construction is fast, be convenient to maintenance and resistance little.
2, wet type cooking fume control equipment
It is to be in contact with one another with washings or other liquid and dusty gas, utilizes the liquid film, drop or the bubble that form to catch grit in the gas, realizes the device of separation and collection powder dust particle.
3, high-pressure electrostatic formula cooking fume control equipment
Utilize gas ionization and electric field action power under the high pressure, the charged back of soot particles is separated from gas.In general, such smoke purifier is made up of high voltage source, housing, the ionization utmost point, dust collecting electrode and blower fan.After the energising, high voltage source makes the discharge negative electrode generation corona discharge of the ionization utmost point, forms the corona zone between discharge negative electrode and anode, produces in a large number by electronics and anion.When flue gas from clearing machine advance that mouth enters housing and during by the ionization utmost point, the free electron of corona zone and anion will collide and adsorb on it in soot particles, form electronegative particle.Because the effect of electric field force, these charged particles will be adsorbed on the discharge negative electrode and anode wall of the ionization utmost point.A small amount of charged soot particles that is not adsorbed is adsorbed by dust collecting electrode, thereby reaches the purpose of purifying oil fume.The oil smoke of the ionization utmost point and the absorption of dust collecting electrode surface accumulates oil droplet, and the oil collector sump tank below flowing into is recycling once more.
The ionization utmost point of smoke purifier is the chief component of clearing machine, and ionization extremely generally is made up of discharge negative electrode and anode.Wherein existing discharge negative electrode form mainly contains linear discharge electrode, star discharge electrode and prickle discharging pole.Anode has board-like and form such as tubular type.
For linear discharge electrode, for satisfying the corona discharge requirement, the discharge electrode diameter is generally less, thereby makes the life-span of this type of electrode not enough.For star-like and prickle shape electrode, owing between discharge tip certain distance is arranged, cause its corona zone intensity uniformity bad, when flue gas during by more weak regional of corona, abundant attract electrons, suffered electric field force reduces, thus the reduction purification efficiency.
Summary of the invention
The purpose of this utility model just at existing weak point and the ionization utmost point that provides a kind of structure more reasonably to be applicable to the heat-treatment oil smoke clearing machine in the above-mentioned prior art.
The ionization utmost point of the present utility model comprises the ionization frame, is installed in high-field electrode frame on the ionization frame by insulation porcelain knob and connector, to be distributed on several high-field electrodes on the high-field electrode frame with the perpendicular mode in high-field electrode frame plane; Described high-field electrode comprises the anode tube that adopts thin-wall steel tube to be prepared from, is installed in electric cathode supporting bar in the anode tube, is installed on negative electrode positioning sleeve on the cathode supporting bar by fixed connecting piece in the coaxial line mode, and along negative electrode positioning sleeve length direction be distributed on the negative electrode positioning sleeve several the discharge negative electrodes, described discharge negative electrode is to be that the awl bowl-type circular ring plate that the corrosion resistant plate of 0.5-1mm is processed into is prepared from by thickness, and its vertex of a cone end is towards advancing the cigarette direction.
Operation principle of the present utility model is following and beneficial effect is as follows:
When leading to high-tension electricity, form the corona zone between discharge negative electrode external arc and anode tube inwall, when oil smoke passed through anode tube, the corona zone made soot particles charged, was adsorbed on discharge negative electrode and the anode tube wall, reached the purpose of fume purifying.
The utility model is compared with traditional ionization electrode structure, can form corona zone uniformly between the discharge negative electrode of this ionization utmost point and anode tube, make oil smoke can't " escape " charged process, can make all soot particles charged in theory, thereby be ionized the absorption of the utmost point and dust collecting electrode, improved the efficient of smoke purifier.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is single high-field electrode structural representation.
Fig. 4 is the left view of Fig. 3.
Fig. 5 is for being equipped with heat-treatment oil smoke clearing machine structural representation of the present utility model.
Sequence number among the figure: the 1st, ionization frame, the 2nd, insulation porcelain knob, 3 high-field electrode framves, the 4th, high-field electrode, the 5th, cathode supporting bar, the 6th, clamping nut, the 7th, the negative electrode positioning sleeve, the 8th, discharge negative electrode, the 9th, anode tube, the 10th, equal flow cone mouth, the 11st, housing 12 is filter screens, the 13rd, the ionization utmost point, the 14th, dust collecting electrode, the 15th, supporting leg.
The specific embodiment
The utility model is described further below with reference to embodiment (accompanying drawing):
As shown in Figure 1, 2, the ionization utmost point of the present utility model comprises ionization frame 1, be installed in high-field electrode frame 3 on the ionization frame by insulation porcelain knob 2 and connector, to be distributed on several high-field electrodes 4 on the high-field electrode frame with the perpendicular mode in high-field electrode frame plane; Described high-field electrode 4 comprises the anode 9 that adopts thin-wall steel tube to be prepared from, being installed in cathode supporting bar 5 in the anode tube, passing through fixed connecting piece in the coaxial line mode---clamping nut 6 is installed on the negative electrode positioning sleeve 7 on the cathode supporting bar, and along negative electrode positioning sleeve length direction be distributed on the negative electrode positioning sleeve several the discharge negative electrodes 8, described discharge negative electrode 8 is to be that the awl bowl-type circular ring plate that the corrosion resistant plate of 0.5-1mm is processed into is prepared from by thickness, and its vertex of a cone end is towards advancing cigarette direction (referring to Fig. 3,4).
As shown in Figure 5, the ionization utmost point 13 of the present utility model is assemblied in the housing 11 of heat-treatment oil smoke clearing machine, is positioned at the import of equal flow cone mouth 10(oil smoke) and the rear portion of filter screen 12, the front portion of dust collecting electrode 14.