CN104841255A - Double spiral electric heating gas oxidation decomposition device - Google Patents
Double spiral electric heating gas oxidation decomposition device Download PDFInfo
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- CN104841255A CN104841255A CN201410049984.2A CN201410049984A CN104841255A CN 104841255 A CN104841255 A CN 104841255A CN 201410049984 A CN201410049984 A CN 201410049984A CN 104841255 A CN104841255 A CN 104841255A
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- double helix
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- 238000005485 electric heating Methods 0.000 title claims abstract description 81
- 230000003647 oxidation Effects 0.000 title claims abstract description 43
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 43
- 238000000354 decomposition reaction Methods 0.000 title abstract description 13
- 238000012546 transfer Methods 0.000 claims abstract description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 45
- 238000009413 insulation Methods 0.000 claims description 34
- 239000010425 asbestos Substances 0.000 claims description 27
- 229910052895 riebeckite Inorganic materials 0.000 claims description 27
- 229910001220 stainless steel Inorganic materials 0.000 claims description 18
- 239000010935 stainless steel Substances 0.000 claims description 18
- 239000000919 ceramic Substances 0.000 claims description 17
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 22
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- 238000000034 method Methods 0.000 description 13
- 150000001875 compounds Chemical class 0.000 description 7
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- 239000002912 waste gas Substances 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000009841 combustion method Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
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- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 231100000719 pollutant Toxicity 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
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- 150000001717 carbocyclic compounds Chemical class 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- -1 carboxylic class Chemical class 0.000 description 1
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- 229910052801 chlorine Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
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- 231100000419 toxicity Toxicity 0.000 description 1
Landscapes
- Resistance Heating (AREA)
Abstract
The invention provides a double spiral electric heating gas oxidation decomposition device, which comprises an electric heating device, a fixing device, a central pipe with two ends closed, a spiral air feeding channel, a tangent air inlet, a spiral gas discharging channel, a tangent air outlet, an upper gland, and a lower end cover. The central pipe is provided with a plurality of air inlets and air outlets; the tangent air inlet communicates with the spiral air feeding channel; the spiral air feeding channel communicates with air inlets in the central pipe; the air outlets in the central pipe communicate with the spiral gas discharging channel; the spiral gas discharging channel communicates with the tangent air outlet; the electric heating device is fixed on the central axis of the central pipe via the fixing device; the upper gland is fixed at the top end of the spiral gas discharging channel; and the lower end cover is fixed at the bottom of the spiral gas discharging channel. According to the invention, a mixed gas enters from the outside to the inside and is subjected to spiral heating, and is discharged from the mixed gas oxidation decomposition device and is subjected to reverse spiral heat release via the central pipe. The double spiral electric heating gas oxidation decomposition device has advantages of high heat transfer efficiency, high heat recovery efficiency, complete mix of waste air, small size, and compact structure.
Description
Technical field
The present invention relates to waste gas treatment equipment field, particularly relate to a kind of double helix electric heating gaseous oxidation decomposer.
Background technology
All waste gas can be produced in the life of people and the production process of many industries, compound in these waste gas is the major reason causing atmosphere pollution, the common processing method processing these gaseous compounds has high altitude discharge method, chemical absorption method, physisorphtion, combustion method and corona method etc., and they respectively have superiority and lack:
High altitude discharge method is actually pollution transportation; Chemical absorption method is effective, but cost is high, operation difficult, it is with strong points to process, easily cause secondary pollution; Physisorphtion is simply effective, but the adsorbent used is expensive, saturated very soon, and reproducing adsorbent needs Special complete equipment, and difficulty is large, cost is high; Combustion method process range is wide and thoroughly, the professional combustion furnace of special fuel but requirement configuration is burnt, drops into high; Corona method decomposition range is wide, can only decompose the pollutant of 50% at every turn, need multistage-combination to connect, expensive to making, and the pulsed electron component life of tens thousand of volt is short, poor stability.
Therefore, a kind of process range is wide, effective, cost is low, operation is easy, the life-span is long, do not produce the hope that the gas processing device of secondary pollution becomes environmental project.
Summary of the invention
The object of the present invention is to provide and a kind ofly combine spiral-plate heat exchanger, gas combustion stove and ammonia convertor central tube electric furnace heating wire heater advantage, process range is wide, structure is simple, safe and reliable, energy consumption is low, operation is easy, take up an area less, gaseous oxidation processor that the life-span is long.
For achieving the above object, the invention provides a kind of double helix electric heating gaseous oxidation decomposer, comprise electric heater unit, fixture, the central tube of closed at both ends, spiral inlet duct, tangent line air inlet, spiral gas off-take, tangent line gas outlet, upper press cover and bottom end cover; Described central tube is provided with multiple air admission hole and multiple venthole be communicated with air admission hole, described tangent line air inlet is communicated with spiral inlet duct, described spiral inlet duct is communicated with the air admission hole on central tube, venthole on described central tube is communicated with spiral gas off-take, and described spiral gas off-take is communicated with tangent line gas outlet; On the central axis that described electric heater unit utilizes fixture to be fixed in central tube; Described upper press cover is fixed on the top of spiral inlet duct, and described bottom end cover is fixed on the bottom of spiral inlet duct.
Wherein, this double helix electric heating gaseous oxidation decomposer also comprises odd-level spiral plate and even level spiral plate, described odd-level spiral plate edge is fixedly connected with central tube with one end of even level spiral plate, and expanded gradually to the periphery by central tube bilateral symmetry position, the other end transfers into contraction-like inlet pipe mouth or outlet spout; Described odd-level spiral plate and even level spiral plate surround the spiral inlet duct and spiral gas off-take mutually separated jointly.
Wherein, described upper press cover is fixed on the upper surface of odd-level spiral plate and even level spiral plate, is provided with upper press cover asbestos pad below upper press cover; Described bottom end cover is fixed on the lower surface of odd-level spiral plate and even level spiral plate, and the top of described bottom end cover is provided with bottom end cover asbestos pad.
Wherein, multiple spacing support is provided with between described odd-level spiral plate and even level spiral plate.
Wherein, this double helix electric heating gaseous oxidation decomposer also comprises multiple feet and multiple support ring; Described bottom end cover is welded on support ring, and multiple feet is equally distributed to be welded on support ring.
Wherein, described fixture comprises top and is provided with and hangs Ring current distribution fixed bar, the fixing card of many groups, fixing clamping fixing bolt and fixing locking slip ring; Described electric heater unit is at least one U-shaped electric heating rod; Described electric heating rod utilizes the fixing card of many groups and fixing clamping fixing bolt to be installed in parallel in the both sides or around of center fixed bar; Fixing locking slip ring is fixed on fixing card below.
Wherein, ceramic fixed cover is also provided with between the fixed bar of described fixing Ka He center.
Wherein, the antihunting locking slip ring described fixing card being fixed with the antihunting card for preventing electric heating rod from swinging and stoping Long-Time Service to cause antihunting card to glide.
Wherein, this double helix electric heating gaseous oxidation decomposer also comprises the fixing letter letter body of insulation, and described insulation fixes that letter letter body comprises stainless steel card, card fixed by multi-disc asbestos and card fixed by multi-disc aluminium oxide ceramics; Described stainless steel card is fixed on the bottom of the fixing letter letter body of insulation, and described multi-disc asbestos are fixed card and multi-disc aluminium oxide ceramics and fixed card and be alternately fixed on stainless steel card;
The center of described upper press cover is provided with upper press cover and fixes letter hole, and described insulation is fixed letter letter body and is fixed on upper press cover and fixes in letter hole; The top of described center fixed bar and electric heating rod is fixed in the fixing letter letter body of insulation.
Wherein, this double helix electric heating gaseous oxidation decomposer also comprises temperature thermocouple sleeve; The center of described upper press cover is provided with upper press cover and fixes letter hole, fixes side, letter hole be also provided with thermocouple sheath hole at upper press cover; Described temperature thermocouple sleeve is fixed in thermocouple sheath hole.
The invention has the beneficial effects as follows: double helix electric heating gaseous oxidation decomposer provided by the invention, that one makes mist ecto-entad spiral heating and enters, setting maximum temperature is heated to central tube, the maximum temperature of this central tube is exactly the oxidation Decomposition design temperature of the gaseous compound must removed in this mist; Leave the heat release of central tube reverse acting spiral again and the mist oxygenolysis device gone out; System's omnidistance turbulent flow being covered with secondary flow when gas flows in spiral turnover air flue, omnidistance adverse current wall-type heat exchange, therefore, heat transfer efficiency is high, heat recovery efficiency is high, air off gas mixes completely, equipment volume is little, compact conformation, life-span grow and have self-cleaning action.Gas flow scooter 20m/s, is better than other species resolving device.
Accompanying drawing explanation
Fig. 1 is double helix electric heating gas decomposer complete section front view;
Fig. 2 is double helix electric heating gas decomposer complete section top view;
Fig. 3 is double helix electric heating gas decomposer left view;
Fig. 4 is double helix electric heating gas decomposer axle side outline drawing;
Fig. 5 is the front view of the lower end cover strip partial cutaway of double helix electric heating gas decomposer;
Fig. 6 is the top view of the lower end cover strip partial cutaway of double helix electric heating gas decomposer;
Fig. 7 is the spiral plate welded type spacing support Local map of double helix electric heating gas decomposer;
Fig. 8 is the spiral plate welded type spacing support local expansion figure of double helix electric heating gas decomposer;
Fig. 9 is the fixing letter complete section figure of double helix electric heating gas decomposer electrical heating insulation;
Figure 10 is that double helix electric heating gas decomposer heating sucker rod graded insulation fixes card modular construction complete section figure;
Figure 11 is that double helix electric heating gas decomposer heating sucker rod graded insulation fixes card modular construction top view;
Figure 12 is that the central tube of double helix electric heating gas decomposer partly cuts open front view;
Figure 13 is that the central tube of double helix electric heating gas decomposer partly cuts open expanded view;
Figure 14 is the structure chart of double helix electric heating gas decomposer aluminium oxide ceramics and asbestos material electric heater insulation fixing plate;
Figure 15 is the cross sectional representation of double helix electric heating gas decomposer aluminium oxide ceramics and asbestos material electric heater insulation fixing plate;
Figure 16 is double helix electric heating gas decomposer upper press cover front view;
Figure 17 is the top view of double helix electric heating gas decomposer upper press cover band partial cutaway;
Figure 18 is the fixing letter letter body of double helix electric heating gas decomposer electrical heating insulation.
Main element symbol description is as follows:
1, gas inlet and outlet flange 2, gas inlet and outlet pipe
3, upper press cover 4, upper press cover asbestos pad
5, odd-level spiral plate 6, even level spiral plate
7, lever pin is fixed at the fixing letter letter body 8 of insulation, center
9, suspension ring 10, center fixed bar
11, electric heating rod 12, electric heating rod power line clamp nut
13, card fixed by the fixing card 14 of pottery, asbestos
15, temperature thermocouple sleeve 16, stainless steel card
17, central tube 18, bottom end cover asbestos pad
19, bottom end cover 20, feet
21, support ring 22, central tube gas port
23, antihunting locking slip ring 24, antihunting card
25, fixing card 26, aluminium oxide ceramics saddle insulation fixed cover
27, fixing locking slip ring 28, fixing clamping fixing bolt
29, outer spiral plate housing 30, bottom end cover surrounding edge
31, spacing support 32, stainless steel base plate electrical heating rod aperture
33, fixed head centre bore 34, fixed head electrical heating rod aperture
35, upper press cover fixes letter hole 36, fixing letter bottom outlet
37, thermocouple sheath hole
Detailed description of the invention
Consult Fig. 1-18, double helix electric heating gaseous oxidation decomposer provided by the invention, comprises electric heater unit, fixture, the central tube 17 of closed at both ends, spiral inlet duct, tangent line air inlet, spiral gas off-take, tangent line gas outlet, upper press cover 3 and bottom end cover 19; Central tube 17 is provided with multiple air admission hole and multiple venthole be communicated with air admission hole, tangent line air inlet is communicated with spiral inlet duct, spiral inlet duct is communicated with the air admission hole on central tube 17, and the venthole on central tube 17 is communicated with spiral gas off-take, and spiral gas off-take is communicated with tangent line gas outlet; On the central axis that electric heater unit utilizes fixture to be fixed in central tube 17; Upper press cover 3 is fixed on the top of spiral inlet duct, and bottom end cover 19 is fixed on the bottom of spiral inlet duct.
Double helix electric heating gaseous oxidation decomposer provided by the invention, its operation principle is as follows:
The air admission hole of tangent line air inlet, spiral inlet duct, central tube 17, the venthole of central tube 17, spiral gas off-take are communicated with composition successively with tangent line gas outlet, a complete gas passage; From entering out, gas experienced by tangent line air inlet normal temperature, air inlet spiral is heated gradually, central tube 17 reaches the setting highest temperature, spiral of giving vent to anger is lowered the temperature gradually, the full countercurrent flow process of this complete whole process of tangent line gas outlet normal temperature.The intensification heat entering gas is completely from going out the releasing heat of gas; Electrical heating the supplementing only for the shortage of heat that heats up of central tube 17.
Compared to prior art, double helix electric heating gaseous oxidation decomposer provided by the invention, that one makes mist ecto-entad spiral heating and enters, setting maximum temperature is heated to central tube 17, the maximum temperature of this central tube 17 is exactly the oxidation Decomposition design temperature of the gaseous compound must removed in this mist; Leave central tube 17 reverse acting spiral heat release again and the mist oxygenolysis device gone out; System's omnidistance turbulent flow being covered with secondary flow when gas flows in spiral turnover air flue, omnidistance adverse current wall-type heat exchange, therefore, heat transfer efficiency is high, heat recovery efficiency is high, air off gas mixes completely, equipment volume is little, compact conformation, life-span grow and have self-cleaning action.Gas flow scooter 20m/s, is better than other species resolving device.
The present invention do not fear the height of complicated and simple, the concentration of the chemical constitution of pollutant in waste gas, kind number, the difficulty or ease of oxidation, the power of toxicity; Can any kind of oxidation Decomposition, concentration mixing organic gas (as hydro carbons, alcohols, aldehyde and ketone, carboxylic class, lipid, amino acids, carbocyclic compound class and heterocycles etc.); Can decompose can be oxidized any kind, concentration mixing inorganic gas compounds (such as methane, carbon monoxide, ammonia etc.); Simple substance class gas and non-combustible gas (such as chlorine, fluorine gas, sulfur dioxide, carbon dioxide etc.) cannot be decomposed; Decompose some gas and there is no environment protection significance (such as Oxidation of Hydrogen Sulfide resolves into sulfur dioxide).
Due to most gaseous compound, its oxidation Decomposition is temperature required to differ greatly, from 540 ~ 800 DEG C not etc.; So to can be oxidized, the mist of complicated component, oxidation decomposition course just starts in the heating period, the temperature of central tube 17 is just decomposition temperature in gaseous mixture the highest component and setting, but most industry and life waste gas, its gaseous compound decomposition temperature is all below 800 DEG C, so the present invention sets constant 840 DEG C of central tube 17 electrical heating maximum temperature.
In the present embodiment, this double helix electric heating gaseous oxidation decomposer comprises odd-level spiral plate 5 and even level spiral plate 6, odd-level spiral plate 5 edge is fixedly connected with central tube 17 with one end of even level spiral plate 6, and expanded gradually to the periphery by central tube 17 bilateral symmetry position, the other end transfers into contraction-like gas inlet and outlet pipe 2, to burn-on gas inlet and outlet flange 1, become the complete mouth of pipe that can dock with other gas channel; The outermost of odd-level spiral plate 5 edge and even level spiral plate 6 is provided with outer spiral plate housing 29, and outer spiral plate housing 29 plays reinforcement effect; Odd-level spiral plate 5 and even level spiral plate 6 surround the spiral inlet duct and spiral gas off-take mutually separated jointly.
Central tube 17, central tube 17 and spiral plate odd-level spiral plate 5 and even level spiral plate 6 contour, its size length by processing tolerance, composition, processing requirements determine as calculated, central tube 17 is made up of the stainless steel tube that diameter is larger, the cylinder antimere of pipe has the multiple central tube gas port 22 of many rows, central tube gas port 22 is divided into air admission hole and venthole, and the two leads to spiral inlet duct and spiral gas off-take respectively, and its air vent channel gross area is greater than spiral channel actual internal area.The device of electric heater and solid electric heater is had at the axis part of central tube 17, the heating segment length of electric heater is slightly less than air flue height, introduce section with the conduction of heating section one to be stretched out by multilayer insulation fixed bed and the insulation being fixed on top is fixed on letter, electrical heating power is determined as calculated by tolerance size, gaseous oxidation decomposition temperature, the thermal efficiency etc.
Spiral inlet duct and spiral gas off-take the initiating terminal of long stainless plate are parallel to central tube 17 axisymmetrical be welded on central tube 17 outer, plate is welded with regularly arranged spacing support 31, spacing support 31 has the effect determined distance between plates and increase gas turbulence, spacing support 31 length and arranging density are calculated by the gentle speed of tolerance to be determined, two parallel corrosion resistant plates are by spacing support 31 spacing, be rolled into the helical duct of a pair separated from each other circulation equilibrium, be connected with tangential inlet or outlet after being crimped onto the number of turns needed for heat exchange amount of calculation, as required, inlet/outlet pipe can multiple angles each other.
In the present embodiment, upper press cover 3 is fixed on the upper surface of odd-level spiral plate 5 and even level spiral plate 6, is provided with upper press cover asbestos pad 4 below upper press cover 3; Bottom end cover 19 is fixed on the lower surface of odd-level spiral plate 5 and even level spiral plate 6, and the top of bottom end cover 19 is provided with bottom end cover asbestos pad 18, and bottom end cover asbestos pad 18 has multilayer, is all fixed in bottom end cover surrounding edge 30.
Upper press cover 3 is actually a common upper end plate of whole spiral inlet duct and spiral gas off-take, plate along there being surrounding edge to be wrapped in the skin becoming spiral plate housing, owing to having asbestos layer between spiral plate and gland, so the structure after compressing has the effect preventing Leakage Gas, walk short circuit and insulation simultaneously, therefore upper press cover 3 is best is equally made up of stainless steel; After being provided with asbestos pad, upper press cover 3 and bottom end cover 19 have good insulation and sealing function, can reduce thermal losses, improve energy utilization rate.
In the present embodiment, this double helix electric heating gaseous oxidation decomposer also comprises multiple feet 20 and multiple support ring 21; Bottom end cover 19 is welded on support ring 21, and multiple feet 20 is equally distributed to be welded on support ring 21.The shrouding disc structure mirror images each other of bottom end cover 19 and upper press cover 3, feet 20 is load-supporting part.
In the present embodiment, fixture comprises top and is provided with the center fixed bar 10 of suspension ring 9, the fixing card 25 of many groups, fixing clamping fixing bolt 28 and fixing locking slip ring 27; Electric heater unit is at least one U-shaped electric heating rod 11, and electric heating rod 11 is provided with electric heating rod power line clamp nut 12, for connecting electric wire; Electric heating rod 11 utilizes the fixing card 25 of many groups and fixing clamping fixing bolt 28 to be installed in parallel in the both sides or around of center fixed bar 10; Fixing locking slip ring 27 is fixed on below fixing card 25.Aluminium oxide ceramics saddle insulation fixed cover 26 is also provided with between fixing Ka25He center fixed bar 10.The antihunting locking slip ring 23 fixing card 25 being fixed with the antihunting card 24 for preventing electric heating rod 11 from swinging and stoping Long-Time Service to cause antihunting card 24 to glide.
Central tube 17 can be stablized, firmly be fixed on the axis of this device by above-mentioned fixture.
Electric heating rod 11 is firmly fixed on center fixed bar 10 by saddle aluminium oxide ceramics fixed cover with fixing clamping fixing bolt 28 and on-slip ring and is close to and can ensures good insulation by fixing card 25, swing to prevent the lower end of electric heating assembly under gas shock, on the fixing card 25 of the bottom of electric heating assembly, be provided with can be movable on vertical and horizontal 90O position antihunting card 24, and the downslide after having antihunting locking slip ring 23 to stop Long-Time Service, when electric heating assembly is for putting into central tube 17, first antihunting card 24 is upwards packed up and make it to be parallel to center fixed bar 10, after entering central tube 17, Action of Gravity Field can make antihunting card 24 fall down in horizontal level, now, the two ends of antihunting card 24 almost contact central tube 17 inwall, become the constraint mechanism of restriction electric heating assembly oscillating quantity, the top of electric heating assembly is the assembly playing insulation, insulation, sealing, fixing, plant-grid connection and lifting making the introducing portion of electric heater component can be fixed on the fixing letter letter body 7 of insulation safely and reliably.
In the present embodiment, this double helix electric heating gaseous oxidation decomposer also comprises the fixing letter letter body 7 of insulation, and insulation is fixing, and letter letter body 7 comprises stainless steel card 16, card 14 fixed by multi-disc asbestos and card 13 fixed by multi-disc aluminium oxide ceramics; Stainless steel card 16 is fixed on the bottom of the fixing letter letter body 7 of insulation, and multi-disc asbestos are fixed card 14 and multi-disc aluminium oxide ceramics and fixed card 13 and be alternately fixed on stainless steel card 16.
The center of upper press cover 3 is provided with upper press cover and fixes letter hole 35, and the fixing letter letter body 7 of insulation is fixed on upper press cover and fixes in letter hole 35; The top of center fixed bar 10 and electric heating rod 11 is fixed in the fixing letter letter body 7 of insulation; The bottom of the fixing letter letter body 7 of insulation is provided with fixing letter bottom outlet 36, stainless steel card 16 is provided with stainless steel base plate electrical heating rod aperture 32, asbestos are fixed the center that card 14 and aluminium oxide ceramics fix card 13 and are provided with fixed head centre bore 33, and are also provided with fixed head electrical heating rod aperture 34 fixed head centre bore 33 is other; Electric heating rod 11 is successively through fixed head electrical heating rod aperture 34, stainless steel base plate electrical heating rod aperture 32 and fixing letter bottom outlet 36, center fixed bar 10 is fixed from all asbestos the fixed head centre bore 33 that card 14 and aluminium oxide ceramics fix card 13 and is passed, and relies on upper and lower Liang Ge center to fix lever pin 8 all asbestos to be fixed card 14 and aluminium oxide ceramics and fix card 13 and be fixed between two pins.
The two poles of the earth conducting rod of U-shaped electric heating rod 11 upper end is then each passed through all asbestos and fixes card 14 and aluminium oxide ceramics corresponding electric heating rod 11 hole fixed on card 13 and expose thread segment on bar, is respectively screwed into a pair electric heating rod power line clamp nut 12 and gets final product external power supply; For Leakage prevention, asbestos card and center fixed bar 10, asbestos card and electric heating rod 11, asbestos card and the electrical heating fixing letter that insulate is stationary fit; For ensureing electric insulation safety, stainless steel base plate electrical heating rod aperture 32 diameter on stainless steel card 16 is 3 times of electric heating rod 11 diameter.
In the present embodiment, this double helix electric heating gaseous oxidation decomposer also comprises temperature thermocouple sleeve 15; Fix side, letter hole 35 at upper press cover and be also provided with thermocouple sheath hole 37; Temperature thermocouple sleeve 15 is fixed in thermocouple sheath hole 37.Temperature thermocouple sleeve 15 makes double helix electric heating gaseous oxidation decomposer have function of temperature control, can better monitor waste gas treatment process.
These are 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 improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a double helix electric heating gaseous oxidation decomposer, is characterized in that, comprises electric heater unit, fixture, the central tube of closed at both ends, spiral inlet duct, tangent line air inlet, spiral gas off-take, tangent line gas outlet, upper press cover and bottom end cover; Described central tube is provided with multiple air admission hole and multiple venthole be communicated with air admission hole;
Described tangent line air inlet is communicated with spiral inlet duct, and described spiral inlet duct is communicated with the air admission hole on central tube, and the venthole on described central tube is communicated with spiral gas off-take, and described spiral gas off-take is communicated with tangent line gas outlet; Described tangent line air inlet, spiral inlet duct, air admission hole, venthole, spiral gas off-take and tangent line gas outlet form a complete gas passage;
On the central axis that described electric heater unit utilizes fixture to be fixed in central tube; Described upper press cover is fixed on the top of spiral inlet duct, and described bottom end cover is fixed on the bottom of spiral inlet duct.
2. double helix electric heating gaseous oxidation decomposer according to claim 1, it is characterized in that, this double helix electric heating gaseous oxidation decomposer also comprises odd-level spiral plate and even level spiral plate, described odd-level spiral plate edge is fixedly connected with central tube with one end of even level spiral plate, and expanded gradually to the periphery by central tube bilateral symmetry position, the other end transfers into contraction-like inlet pipe mouth or outlet spout; Described odd-level spiral plate and even level spiral plate surround the spiral inlet duct and spiral gas off-take mutually separated jointly.
3. double helix electric heating gaseous oxidation decomposer according to claim 2, it is characterized in that, described upper press cover is fixed on the upper surface of odd-level spiral plate and even level spiral plate, is provided with upper press cover asbestos pad below upper press cover; Described bottom end cover is fixed on the lower surface of odd-level spiral plate and even level spiral plate, and the top of described bottom end cover is provided with bottom end cover asbestos pad.
4. double helix electric heating gaseous oxidation decomposer according to claim 2, is characterized in that, be provided with multiple spacing support between described odd-level spiral plate and even level spiral plate.
5. double helix electric heating gaseous oxidation decomposer according to claim 1, is characterized in that, this double helix electric heating gaseous oxidation decomposer also comprises multiple feet and multiple support ring; Described bottom end cover is welded on support ring, and multiple feet is equally distributed to be welded on support ring.
6. double helix electric heating gaseous oxidation decomposer according to claim 1, is characterized in that, described fixture comprises top and is provided with and hangs Ring current distribution fixed bar, the fixing card of many groups, fixing clamping fixing bolt and fixing locking slip ring; Described electric heater unit is at least one U-shaped electric heating rod; Described electric heating rod utilizes the fixing card of many groups and fixing clamping fixing bolt to be installed in parallel in the both sides or around of center fixed bar; Fixing locking slip ring is fixed on fixing card below.
7. double helix electric heating gaseous oxidation decomposer according to claim 6, is characterized in that, is also provided with ceramic fixed cover between the fixed bar of described fixing Ka He center.
8. double helix electric heating gaseous oxidation decomposer according to claim 6, is characterized in that, the antihunting locking slip ring described fixing card being fixed with the antihunting card for preventing electric heating rod from swinging and stoping Long-Time Service to cause antihunting card to glide.
9. double helix electric heating gaseous oxidation decomposer according to claim 6, it is characterized in that, this double helix electric heating gaseous oxidation decomposer also comprises the fixing letter letter body of insulation, and described insulation fixes that letter letter body comprises stainless steel card, card fixed by multi-disc asbestos and card fixed by multi-disc aluminium oxide ceramics; Described stainless steel card is fixed on the bottom of the fixing letter letter body of insulation, and described multi-disc asbestos are fixed card and multi-disc aluminium oxide ceramics and fixed card and be alternately fixed on stainless steel card;
The center of described upper press cover is provided with upper press cover and fixes letter hole, and described insulation is fixed letter letter body and is fixed on upper press cover and fixes in letter hole; The top of described center fixed bar and electric heating rod is fixed in the fixing letter letter body of insulation.
10. double helix electric heating gaseous oxidation decomposer according to claim 1, is characterized in that, this double helix electric heating gaseous oxidation decomposer also comprises temperature thermocouple sleeve; The center of described upper press cover is provided with upper press cover and fixes letter hole, fixes side, letter hole be also provided with thermocouple sheath hole at upper press cover; Described temperature thermocouple sleeve is fixed in thermocouple sheath hole.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410049984.2A CN104841255A (en) | 2014-02-13 | 2014-02-13 | Double spiral electric heating gas oxidation decomposition device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410049984.2A CN104841255A (en) | 2014-02-13 | 2014-02-13 | Double spiral electric heating gas oxidation decomposition device |
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| CN104841255A true CN104841255A (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410049984.2A Pending CN104841255A (en) | 2014-02-13 | 2014-02-13 | Double spiral electric heating gas oxidation decomposition device |
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| CN113318594A (en) * | 2021-06-25 | 2021-08-31 | 康纳新型材料(杭州)有限公司 | Energy-efficient catalytic oxidation device |
| CN114307587A (en) * | 2022-03-15 | 2022-04-12 | 北京中科同志科技股份有限公司 | Formic acid process tail gas processing apparatus and formic acid process welding system |
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Application publication date: 20150819 |