CN205949245U - Steel pipe coating hot -blast furnace - Google Patents
Steel pipe coating hot -blast furnace Download PDFInfo
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- CN205949245U CN205949245U CN201620862392.7U CN201620862392U CN205949245U CN 205949245 U CN205949245 U CN 205949245U CN 201620862392 U CN201620862392 U CN 201620862392U CN 205949245 U CN205949245 U CN 205949245U
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- drying tunnel
- hot blast
- blast drying
- air
- hot
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Abstract
The utility model discloses a steel pipe coating hot -blast furnace, including hot -blast drying tunnel and combustion chamber, the combustion chamber is located the outside of hot -blast drying tunnel, the combustion chamber is connected with the combustor, two tip of hot -blast drying tunnel do not are provided with the furnace gate, the top of hot -blast drying tunnel is provided with the return air inlet, the both sides of hot -blast drying tunnel are provided with the supply -air outlet respectively, the inside wall of hot -blast drying tunnel is provided with the intercommunication the crosswind way of the supply -air outlet of hot -blast drying tunnel, the crosswind way is provided with a plurality of hot air exitus, the combustion chamber is provided with air outlet and return air inlet, the air outlet of combustion chamber connect the fan and through the supply air duct with the supply -air outlet intercommunication of hot -blast drying tunnel, the return air inlet of hot -blast drying tunnel pass through the return air duct with the return air inlet intercommunication of combustion chamber. The programming rate of this hot -blast furnace is fast, and hot -blast even in the hot -blast drying tunnel, the thermal efficiency is high.
Description
Technical field
This utility model is related to steel pipe coating equipment technical field, more particularly, to a kind of pipe plastic coating air stove.
Background technology
Inside and outside plastic-coated steel, inside and outside plastic-coated steel is in steel pipe walls melt and dissolved layer of polyethylene (PE) resin, ethylene-propylene
The Organic substances such as acid copolymer (EAA), epoxy (EP) powder, nonpoisonous polypropylene (PP) or non-toxic polyvinyl chloride (PVC) and constitute
Composite steel-plastic tubing.Plastic-coated steel not only have the advantages that steel pipe high intensity, easily connect, flow impact resistant, also overcome
Steel pipe meets that water is perishable, pollution, fouling and plastic tube intensity is high, fire-fighting poor performance the shortcomings of.
Large-diameter steel pipe generally refers to the steel pipe in 300mm～2400mm for the nozzle diameter, can need coating according to different
The plastic coating of the various different performances such as polrvinyl chloride (PVC), polyethylene (PE), epoxy resin (EPOZY).To large-diameter steel pipe
Carry out plastic-coated, the transporting resistance of steel pipe can be reduced, improve flow and transfer efficiency, reduce discharge pressure loss.Heavy caliber applies
Steel pipe is widely used in the engineering fields such as tap water, natural gas, oil, chemical industry, medicine, communication, electric power, ocean.
Before carrying out inside and outside plastic-coated to steel pipe, placing steel tubes are needed to be preheated in preheating furnace, Chinese utility model is special
Sharp 202667106U discloses " a kind of epoxy resin plastic-coated steel heating furnace ".This kind of heating furnace include melt pit, hot blast drying tunnel and
Hot blast drying tunnel support that hot blast drying tunnel connects as one, plastic-coated steel conveyer device, and it is arranged on the flue on hot blast drying tunnel.
Although steel pipe can be heated to predetermined temperature by this kind of heating furnace, due to heating to steel pipe after fuel combustion, steel pipe is easily made to produce
The uneven temperature of life, even if the heat conduction velocity of steel pipe is comparatively fast it is also necessary to be heated to above temperature during plastic-coated by steel pipe, when
It is only possible to when dropping to plastic-coated temperature form uniform temperature, so, this kind of mode of heating wastes the energy, simultaneously to steel tube surface
Dirt can be produced.Topmost problem is, it is necessary to take steel pipe by after oven door opening after being heated to steel pipe using this kind of heating furnace
Go out, because taking out and placing into the operation relative difficulty of steel pipe in high temperature furnace, be also required to even with plant equipment operation longer
Time, a large amount of losses of furnace heat can be caused.
Utility model content
Technical problem to be solved in the utility model is：A kind of pipe plastic coating air stove, the intensification of this air stove are provided
Speed is fast, and in hot blast drying tunnel, uniformly, the thermal efficiency is high for hot blast.
For solving above-mentioned technical problem, the technical solution of the utility model is：A kind of pipe plastic coating air stove, including hot blast
Drying tunnel and combustor, combustor is located at the outside of hot blast drying tunnel, and combustor is connected with burner；Two end parts of hot blast drying tunnel
It is not provided with fire door, the top of hot blast drying tunnel is provided with return air inlet, and the both sides of hot blast drying tunnel are respectively arranged with air outlet, and hot blast dries
The medial wall in road is provided with the crosswind road of the air outlet of connection hot blast drying tunnel, and crosswind road is provided with multiple hot-blast outlets；Combustor
It is provided with air outlet and return air inlet, the air outlet connecting fan of combustor is simultaneously connected by the air outlet of air supply duct and hot blast drying tunnel
Logical, the return air inlet of hot blast drying tunnel is connected with the return air inlet of combustor by return air duct.
As a kind of improved mode, the hot-blast outlet in crosswind road is towards the bottom of hot blast drying tunnel.
As a kind of improved mode, the air outlet positioned at hot blast drying tunnel both sides is symmetrical arranged.
As a kind of improved mode, hot blast drying tunnel inside top is provided with the air -return duct of connection hot blast drying tunnel return air inlet,
Air -return duct is densely covered with return air hole.
As a kind of improved mode, the hole wall of return air hole is connected with scale.
As a kind of improved mode, scale offers through hole.
As a kind of improved mode, combustor includes housing, and housing includes the first end being oppositely arranged and the second end
Portion, is sidepiece between first end and the second end, and first end is provided with flame jet, and the second end is provided with air-out
Mouthful, the sidepiece of housing is provided with return air inlet, and flame jet is provided with windshield, and windshield is fixed on the inwall of housing；Combustor
Inwall be provided with dividing plate, the inner chamber of combustor is separated into ante-chamber and back cavity by dividing plate, and ante-chamber is connected with back cavity, dividing plate arrange
There is the scatter plate of taper.
As a kind of improved mode, the side wall of windshield is provided with air inlet.
As a kind of improved mode, housing is provided with observation door, observes door and is located at back cavity.
As a kind of improved mode, in air supply duct, it is provided with damper.
Using the technique effect acquired by technique scheme it is：
Due to the air outlet that is respectively provided on two sides with of hot blast drying tunnel, hot blast by combustor through blower fan and air supply duct from both sides phase
To approaching side air channel, then hot-blast outlet from crosswind road enter the inside of hot blast drying tunnel, hot-blast outlet have multiple so that
Hot blast dispersion, evenly into hot blast drying tunnel inside, hot blast from the bottom of hot blast drying tunnel enter, from the top of hot blast drying tunnel stream
Go out, meet the convective motion rule of air, make that the programming rate in hot blast drying tunnel is fast, be heated evenly.
Due to crosswind road hot-blast outlet towards hot blast drying tunnel bottom, hot blast is from hot-blast outlet blowout downwards more upwards
Motion, makes hot blast be distributed in whole hot blast drying tunnel.
Because hot blast drying tunnel inside top is provided with the air -return duct of connection hot blast drying tunnel return air inlet, air -return duct is densely covered with return air
Hole, the return air hole that the hot blast in hot blast drying tunnel can be gathered by air -return duct flows out from the return air inlet of hot blast drying tunnel again, can make hot blast
Relatively evenly flow out hot blast drying tunnel.Hole wall due to return air hole is provided with scale, can adjust hot air flow by adjusting scale
Amount.Because scale offers through hole, completely enclose under the situation of return air hole in scale, hot blast can flow out hot blast by through hole and dry
Road, in addition, also can catch on through hole by the instrument of buckle to realize the regulation to gap length between scale and return air hole.
Because the inwall of combustor is provided with dividing plate and scatter plate, the inner chamber of combustor is separated into and is interconnected by this dividing plate
Ante-chamber and back cavity, due to the stop of dividing plate, front chamber air is heated into hot blast by the flame that burner sprays, and prevents burner
The flame spraying directly sprays from air outlet and burns associated components, and scatter plate can make hot blast uniform flow to back cavity and air outlet.
Simultaneously as the sidepiece in combustor is provided with return air inlet, is provided with windshield in the inwall of housing, by hot blast weight in air stove
Newly it is incorporated in combustor and is heated, both saved the energy, reduce the temperature of combustor again, improve the work of combustor
Environment, thus improve its service life.
It is provided with damper due in air supply duct, wind speed can be entered by adjust that damper makes hot blast drying tunnel both sides
Degree is consistent.
Brief description
Fig. 1 is sectional view of the present utility model；
Fig. 2 is top view of the present utility model；
Fig. 3 is the sectional view of B-B direction in Fig. 1；
Fig. 4 is the structural representation of electric overhead door；
Fig. 5 is the structural representation of the side of electric overhead door；
Fig. 6 is the structure sectional view of combustor；
Fig. 7 be in Fig. 1 A-A to sectional view；
Fig. 8 is the schematic diagram of crosswind road scale structure；
In figure, 101- doorframe, 102- electric overhead door, 102a- left-hand door is fanned, the right door leaf of 102b-, the left motor of 103a-,
The right motor of 103b-, 104a- left chain, 104b- right chain, 105- counterweight, the left sprocket shaft of 106a-, the right sprocket shaft of 106b-,
The left sprocket wheel of 107a-, the right sprocket wheel of 107b-, 21- hot blast drying tunnel, 201- air outlet, 204- return air inlet, 205- air supply duct, 208-
Hot-blast outlet, 209- air -return duct, 291- scale, 292- through hole, 293- return air hole, 210- crosswind road, 211- damper, 212-
Return air channel, 3- housing, 311- flame jet, 312- air outlet, 302- return air inlet, 303- windshield, 304- observes door,
305- dividing plate, 306- scatter plate, 313- air inlet, 314a- ante-chamber, 314b- back cavity, 31- first end, 32- the second end,
33- sidepiece, 4- burner, 5- blower fan.
Specific embodiment
With reference to the accompanying drawings and examples this utility model is further illustrated.
As Fig. 1 to Fig. 3 is jointly shown, a kind of pipe plastic coating air stove, including hot blast drying tunnel 21 and combustor, combustor position
Outside in hot blast drying tunnel 21.
In conjunction with shown in Fig. 6, combustion chamber of hot-blast stove includes housing 3, and housing 3 includes the first end 31 and second being oppositely arranged
End 32, is sidepiece 33 between first end 31 and the second end 32, and first end 31 is provided with flame jet 311 and is used for pacifying
Dress burner 4, the second end 32 is provided with air outlet 312, and hot blast is discharged from air outlet 312, air outlet 312 connecting fan 5.Shell
The sidepiece 33 of body 3 is provided with return air inlet 302, and combustor can reclaim hot blast by return air inlet 302, thus realizing the circulation profit of hot blast
With energy saving.Flame jet 311 is provided with windshield 303, and windshield 303 is fixed on the inwall of housing 3, and windshield 303 can
Blown out with the flame preventing flame jet 311.Windshield 303 arranges air inlet 313, the air returned from return air inlet 302
Windshield 303 can be entered from air inlet 313, on the one hand promote the burning of fuel, on the other hand make in combustor inner chamber near gear
The hot wind flow of fan housing 303, it is to avoid produce localized hyperthermia and then burn combustor because of circulation dead angle.
Fix combuster dividing plate 305 between flame jet 311 and air outlet 312, burnt with the blade preventing blower fan 5
Bad.The inner chamber of combustor is separated into ante-chamber 314a and back cavity 314b by dividing plate 305, and ante-chamber 314a is connected with back cavity 314b, makes
Hot blast can flow into back cavity 314b from ante-chamber 314a.Combustor dividing plate 305 fixedly mounts the scatter plate 306 of taper, can be by heat
Wind scatters to the inner chamber of combustor.Housing 3 is provided with the observation door 304 positioned at back cavity 314b, can be by observing door 304 to combustion
Burn room to be overhauled.Combustor is connected with burner 4, and it is indoor that flame is ejected into burning by burner 4.Housing 3 coats heat-insulation layer,
Combustion chamber heat is reduced and runs off.
Jointly shown in conjunction with Fig. 1, Fig. 4 and Fig. 5, two ends of hot blast drying tunnel 21 are respectively arranged with electric overhead door 102.
Electric overhead door 102 includes doorframe 101.The top of doorframe 101 is provided with left sprocket shaft 106a and right sprocket shaft 106b, left chain
Wheel 107a has two or more, and left sprocket wheel 107a is arranged at left sprocket shaft 106a；Right sprocket wheel 107b have two or two with
On, right sprocket wheel 107b is arranged at right sprocket shaft 106b.Left motor 103a is connected with left sprocket shaft 106a, right motor 103b and right chain
Wheel shaft 106b connects.Left sprocket wheel 107a is provided with left chain 104a, and one end of left chain 104a is connected with left-hand door fan 102a, another
End connects left counterweight 105；Right sprocket wheel 107b is provided with right chain 104b, and one end of right chain 104b is connected with right door leaf 102b,
The other end connects right counterweight 105.Left-hand door fans the groove that 102a and right door leaf 102b is vertically slideably positioned in doorframe 101
Interior, so that overhead door simple gate is lifted by controlling left motor 103a and right motor 103b, also two-door can lift simultaneously, can effectively drop
The heat losses when overhead door is opened for the low grade fever wind furnace.Left chain 104a and right chain 104b is connected to counterweight 105, makes out
The operation opening air stove is light.Travel switch or proximity switch are provided with doorframe 101,102a and right door leaf can be fanned to left-hand door
The hoisting depth of 102b or decline the effect of safe spacing played.
As Fig. 1 to Fig. 3 is jointly shown, the top of hot blast drying tunnel 21 is provided with return air inlet 204, and the both sides of hot blast drying tunnel 21 are divided
It is not provided with air outlet 201, the air outlet 201 of hot blast drying tunnel 21 both sides is symmetrical arranged, hot blast dispersion can be made, evenly into heat
In wind drying tunnel 21.Air outlet 312 connecting fan 5 of combustor the air outlet 201 by air supply duct 205 and hot blast drying tunnel 21
Connection, is provided with damper 211 in air supply duct 205, can make entering of hot blast drying tunnel 21 both sides by adjusting damper 211
Wind velocity is consistent.The medial wall of hot blast drying tunnel 21 is provided with the crosswind road 210 of the air outlet 201 of connection hot blast drying tunnel 21, side
Air channel 210 is provided with multiple hot-blast outlets 208, and the hot-blast outlet 208 in crosswind road 210 is towards the bottom of hot blast drying tunnel 21.Hot blast
Blow out downwards from hot-blast outlet 208 and move upwards again, so that hot blast is uniformly distributed in whole hot blast drying tunnel 21.Hot blast drying tunnel 21
Return air inlet 204 is connected with the return air inlet 302 of combustor by return air channel 212.
Jointly shown in conjunction with Fig. 7 and Fig. 8, hot blast drying tunnel 21 inside top is provided with connection hot blast drying tunnel 21 and return air inlet
204 air -return duct 209, air -return duct 209 is densely covered with return air hole 293, and the hot blast in hot blast drying tunnel 21 can be gathered by air -return duct 209
Return air hole 293 flow out from the return air inlet 204 of hot blast drying tunnel 21 again, make hot blast relatively evenly flow out hot blast drying tunnel 21.Return air
The hole wall in hole 293 is provided with scale 291, by adjusting the size in the gap between return air hole 293 and scale 291, scalable heat
The flow of wind.Scale 291 offers through hole 292, completely encloses under the situation of return air hole 293 in scale 291, and hot blast can be by logical
Hot blast drying tunnel 21 is flowed out in hole 292.In addition, also through hole 292 can be caught on by the instrument of buckle realizing to scale 291 position
Adjust.
Operation principle of the present utility model：
Flame is injected to by flame jet 311 that burning is indoor by burner 4, blower fan 5 by combustor hot blast give
Enter in hot blast drying tunnel 21, hot blast enters hot blast drying tunnel 21 from the bottom of hot blast drying tunnel 21, moves then up, makes hot blast drying tunnel 21
Interior temperature raises, and hot blast is flowed out through return air inlet 204 by the air -return duct 209 of hot blast drying tunnel 21 inside top, then passes through return air
The return air inlet 302 of passage 212 and combustor flows back to combustor, after the hot blast that hot blast drying tunnel 21 flows back to is heated again, enters
Next flow circuit process.
Above example be this utility model preferred embodiment, not in order to limit this utility model, every in this reality
Within new spirit and principle, any modification, equivalent substitution and improvement made etc., should be included in of the present utility model
In protection domain.
Claims (10)
1. a kind of pipe plastic coating air stove, including：
Hot blast drying tunnel and combustor, described combustor is located at the outside of described hot blast drying tunnel, and described combustor is connected with burner；
It is characterized in that,
Two ends of described hot blast drying tunnel are respectively arranged with fire door, and the top of described hot blast drying tunnel is provided with return air inlet, described
The both sides of hot blast drying tunnel are respectively arranged with air outlet, and the medial wall of described hot blast drying tunnel is provided with and connects sending of described hot blast drying tunnel
The crosswind road in air port, described crosswind road is provided with multiple hot-blast outlets；
Described combustor is provided with air outlet and return air inlet, the air outlet connecting fan of described combustor and by air supply duct with
The air outlet connection of described hot blast drying tunnel, the return air inlet of described hot blast drying tunnel passes through the return air inlet of return air duct and described combustor
Connection.
2. pipe plastic coating air stove as claimed in claim 1 is it is characterised in that the hot-blast outlet in described crosswind road is towards described
The bottom of hot blast drying tunnel.
3. pipe plastic coating air stove as claimed in claim 1 is it is characterised in that be located at the air outlet of described hot blast drying tunnel both sides
It is symmetrical arranged.
4. pipe plastic coating air stove as claimed in claim 1 is it is characterised in that described hot blast drying tunnel inside top is provided with even
Lead to the air -return duct of described hot blast drying tunnel return air inlet, described air -return duct is densely covered with return air hole.
5. pipe plastic coating air stove as claimed in claim 4 is it is characterised in that the hole wall of described return air hole is provided with scale.
6. pipe plastic coating air stove as claimed in claim 5 is it is characterised in that described scale offers through hole.
7. pipe plastic coating air stove as claimed in claim 1 is it is characterised in that described combustor includes：
Housing, described housing includes the first end being oppositely arranged and the second end, described first end and described the second end
Between be sidepiece, described first end is provided with flame jet, and described the second end is provided with air outlet, the side of described housing
Portion is provided with return air inlet, and described flame jet is provided with windshield, and described windshield is fixed on the inwall of described housing；
The inwall of described combustor is provided with dividing plate, and the inner chamber of described combustor is separated into ante-chamber and back cavity, institute by described dividing plate
State ante-chamber to be connected with described back cavity, described dividing plate is provided with the scatter plate of taper.
8. pipe plastic coating air stove as claimed in claim 7 is it is characterised in that the side wall of described windshield is provided with air inlet
Hole.
9. pipe plastic coating air stove as claimed in claim 7 is it is characterised in that described housing is provided with observation door, described sight
Cha Men is located at described back cavity.
10. pipe plastic coating air stove as claimed in claim 1 is it is characterised in that be provided with damper in described air supply duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620862392.7U CN205949245U (en) | 2016-08-10 | 2016-08-10 | Steel pipe coating hot -blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620862392.7U CN205949245U (en) | 2016-08-10 | 2016-08-10 | Steel pipe coating hot -blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205949245U true CN205949245U (en) | 2017-02-15 |
Family
ID=57974404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620862392.7U Active CN205949245U (en) | 2016-08-10 | 2016-08-10 | Steel pipe coating hot -blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205949245U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076768A (en) * | 2016-08-10 | 2016-11-09 | 高密天机械科技有限公司 | Pipe plastic coating air stove |
-
2016
- 2016-08-10 CN CN201620862392.7U patent/CN205949245U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076768A (en) * | 2016-08-10 | 2016-11-09 | 高密天机械科技有限公司 | Pipe plastic coating air stove |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Steel pipe plastic coating hot air furnace Effective date of registration: 20180605 Granted publication date: 20170215 Pledgee: Shandong Gaomi rural commercial bank Limited by Share Ltd Pledgor: GAOMI TIANYI MACHINERY TECHNOLOGY CO., LTD. Registration number: 2018980000068 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190614 Granted publication date: 20170215 Pledgee: Shandong Gaomi rural commercial bank Limited by Share Ltd Pledgor: GAOMI TIANYI MACHINERY TECHNOLOGY CO., LTD. Registration number: 2018980000068 |