CN206354414U - Flue-cured tobacco horizontal hot air furnace combustion fan heat-insulating protective device - Google Patents
Flue-cured tobacco horizontal hot air furnace combustion fan heat-insulating protective device Download PDFInfo
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- CN206354414U CN206354414U CN201621353921.7U CN201621353921U CN206354414U CN 206354414 U CN206354414 U CN 206354414U CN 201621353921 U CN201621353921 U CN 201621353921U CN 206354414 U CN206354414 U CN 206354414U
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Abstract
Flue-cured tobacco horizontal hot air furnace combustion fan heat-insulating protective device, including straight tube, bend pipe, electromagnet, spring and irony baffle plate, bend pipe import is tightly connected the air outflow port opened up on straight tube inducer tube wall, bend pipe air outlet slit end and straight tube air outlet slit end are non-intersect, straight tube central axis and bend pipe center line are on same perpendicular, baffle plate and spring connection, spring and electromagnet connection, baffle plate are moved up and down in straight tube groove.Electromagnet power supply line access controller original combustion fan power supply wiring hole.Baffle plate minimum point is pulled to straight tube inner chamber extreme higher position when electromagnet is powered, and blower fan air blast flows through straight tube and serves as combustion air, and baffle plate minimum point is fallen after rise to groove extreme lower position during power-off, and air blast flows through bend pipe formation cooling air curtain protection baffle plate and blower fan.Interruption supplies a small amount of combustion air to control the intensive flue-cured tobacco continuous tunnel furnace burnt in stove that the utility model can be used.Utility model combustion fan is stable, without temperature rise, being leaked without high temperature gas flow causes to burn fan trouble.
Description
Technical field
The utility model belong to it is a kind of a small amount of combustion air is supplied by interruption with control in stove the heating furnace of combustion heat supplying and
Hot-blast stove combustion fan protector, more particularly to a kind of flue-cured tobacco horizontal hot air furnace combustion fan heat-insulating protective device.
Background technology
Continuous tunnel furnace is because with disposably coalingging, need not see the advantages such as fiery stoking, obtain more next in dense tobacco flue-curing house halfway
More popularization and application.The a small amount of combustion air of continuous tunnel furnace interruption supply, maintains furnace temperature needed for tobacco flue-curing.1100~1300 in stove
DEG C high temperature combustion zone is only separated by close to combustion fan, high-temperature region and blower fan air outlet with cast iron fire door, and fan coil is vulnerable to logical
Cross the high temperature heat radiation effect that fire door air inlet leaks.Combustion fan not air feed, chimney breast strong wind pour in down a chimney, furnace gas flowing by
Easily there is pressure-fired and the unordered play phenomenon of flare in stove when being not suitable in resistance and flue damper fiery Board position, and can substantially observe and pass through
High temperature gas flow or high temperature flare that fire door air inlet outwards sprays.High temperature gas flow directly heats blower fan by fan outlet first
Impeller casing, then impeller and casing high temperature is transferred to by motor coil by electric machine main shaft, finally occur under off working state
Burn-down of electric motor failure.Investigation display, continuous tunnel furnace combustion fan high temperature damage rate is up to 39%.Motor coil temperature is raised, blower fan
Draft capacity declines, and this blower fan draft capacity, which declines failure, can not often repair recovery, can only update replacement, be brought to tobacco grower
Economic loss.Flavescence fixation stage combustion fan, which burns, causes baking temperature to decline problem, is difficult to be found for a long time, often occurs
Whole room quality of tobacco, which declines, even all scraps phenomenon, and bigger economic loss is brought to tobacco grower.Combustion fan is solved by heat waste
Problem is ruined, is continuous tunnel furnace popularization and application problem urgently to be resolved hurrily.
Tobacco flue-curing house continuous tunnel furnace combustion fan protection device be typically between fire door air inlet and combustion fan air outlet with Z or
L-shaped communicating pipe connect, during fan operation air blast pass sequentially through fan outlet, connection tube cavity and fire door air inlet enter stove
It is interior.Connect length of tube longer, can delay, stop or slacken high-temperature furnace gas in not air feed and the heating damage of combustion fan motor is made
With.CN20203692508U discloses a kind of bulk curing barn auxiliary blowing device, and the device includes pacifying in communicating pipe, communicating pipe
Put at the top of baffle plate, baffle plate and communicating pipe inner cavity top hinge connection, connection tube wall opens up numerous steam vents.CN105831790A
A kind of bulk curing barn combustion fan protector is disclosed, the protector inserts slightly inclined casing box in the middle of communicating pipe,
Baffle plate, baffle plate top margin and casing box top hinge connection are set in casing box, and casing box side wall opens up numerous safety vents.On
The baffle plate for stating two technical schemes is equivalent to check-valves.Air-flow jack-up baffle plate during blower fan air feed, baffle plate run to in communicating pipe
The parallel position of heart axis, not during air feed baffle plate automatically reverted under self gravitation effect it is perpendicular with communicating pipe central axis
Position, is obstructed when high-temperature gas flowing is to baffle position and changes from steam vent outflow, so as to prevent high temperature gas flow to Blower Housing
It is interior.Baffle plate is opened and closed automatically, easy to operate, saves baking recruitment.Practice have shown that：Cost is low, can be combustion-supporting by low discharge
Air jack-up, heat-proof quality is good, go slick, to seal baffle design of good performance of keeping out the wind extremely difficult, during practical application
Have to be reduced to sheet metal.Nonmetallic refractory material baffle plate generally has the shortcomings that heavy, rotation is dumb.Due to leaking
Whole high temperature gas flow high speed impacts corrosion baffle plate, high temperature deformation scaling loss easily occurs for baffle plate, and what is more important metal hinge is easy
Generation high temperature deformation scaling loss and lose rotation flexibility.Baffle plate does not prevent the conduction of heat to fan coil, for a long time not
Blower motor burnout problems occur in air feed.Blower fan upper frequency, which is powered, to be powered off, and fluctuation of service easily damages motor.
Development structure is simple, manufacture simple installation, maintenance cost are low, the flue-cured tobacco of service life length, blower fan without high temperature scaling loss
Horizontal hot air furnace combustion fan heat-insulating protective device, is favorably improved China's intensive flue-cured tobacco equipment and the burning of intensive flue-cured tobacco continuous tunnel furnace
Heat supply process level.
Utility model content
The utility model, which provides one kind, to be had, and " bend pipe import is tightly connected the air outflow opened up on straight tube inducer tube wall
Mouthful, bend pipe air outlet slit end and straight tube air outlet slit end are non-intersect；Electromagnet-spring-baffle plate integral structure, baffle plate is in straight tube
Moved up and down in vertical groove " etc. design feature, " electromagnet intermitten service regulation and control, blower fan do not power off operation and combustion fan it is many
The technical characteristics such as protection again ", " fan operation is stable, and blower fan is not heated without temperature rise, and no high temperature gas flow, which leaks, burns blower fan hidden danger "
Deng the flue-cured tobacco horizontal hot air furnace combustion fan heat-insulating protective device of Multiple techniques advantage.
Flue-cured tobacco horizontal hot air furnace combustion fan heat-insulating protective device, mainly including horizontally disposed straight tube, arrange vertically
Bend pipe, the electromagnet arranged vertically, the spring arranged vertically and the irony baffle plate arranged vertically, baffle plate include semicircle area and rectangle
Area, the wide side ratio semicircle area radius of rectangle region is big, and the long side in rectangle region bottom and semicircle area top straight flange are completely superposed, semicircle area diameter and
Straight tube internal diameter is equal, and baffle plate top margin is fixedly connected with spring bottom end, and spring top is fixedly connected with electromagnet bottom, and bend pipe includes
Be rounded pipeline section along the party upstream that air-flow direction is arranged vertically, horizontally disposed middle reaches square tube section and the downstream side arranged vertically
Pipeline section, electromagnet top is fixed on the square tube section outer wall bottom surface of bend pipe middle reaches, bend pipe air intlet and the vertical air intlet of straight tube
The air outlet slit sealing connection that end is nearby opened up on tube wall, bend pipe downstream side pipeline section air outlet slit perpendicular to straight tube central axis
The direction length of side and straight tube internal diameter are equal, and straight tube inner chamber radius, straight tube air are no more than parallel to the straight tube central axial direction length of side
The port of export and bend pipe air outlet slit end are non-intersect, and bend pipe air outlet slit end is higher by straight tube outer wall extreme higher position point 5mm~15mm, directly
Pipe air outlet slit end extends downwardly the most short horizontal range of external wall for 5mm~15mm with bend pipe downstream side pipeline section, straight tube central shaft
Line and bend pipe center line are on same perpendicular, and straight tube is arranged under bend pipe, are offered in the middle part of straight tube for being moved down on baffle plate
The 220V AC power wiring accessed in dynamic perpendicular grooves, electromagnet power supply line access bulk curing barn controller for combustion fan
Hole, combustion fan is using the stable AC powers of external world 220V, and baffle plate moment is pulled to straight tube inner chamber highest order when electromagnet is powered
Put, straight tube ventilation area reaches maximum, baffle plate moment is fallen after rise to straight tube inner chamber extreme lower position, straight tube air circulation during power-off
Area reduction is to zero.
The a small amount of combustion air of interruption supply is to control to burn in stove, and furnace high-temperature combustion zone closely connects combustion fan and gone out
Air port, high temperature gas flow easily leaks to scurry into by fire door air inlet interruption to be caused to burn the fields such as combustion fan in combustion fan housing
Institute, such as dense tobacco flue-curing house continuous tunnel furnace, Industrial Boiler etc., it can use the utility model.
Utility model economy is good, use safety.Utility model is simple in construction；Fabricate cost low；Fan operation
It is stable；Fan casing is with motor coil without being heated without temperature rise, and blower fan high temperature damage rate is reduced to zero, and furnace high-temperature air-flow interruption leaks
The safety failure rate for burning combustion fan is caused to be reduced to zero.
Brief description of the drawings
Fig. 1 is each part and its connection figure when flue-cured tobacco horizontal hot air furnace combustion fan heat-insulating protective device electromagnet is powered,
Fig. 2 is each part and its connection figure when flue-cured tobacco horizontal hot air furnace combustion fan heat-insulating protective device electromagnet is powered off.Fig. 1 and Fig. 2
In, 1 is straight tube, and 11 be groove, and 12 be straight tube air outlet slit end, and 2 be bend pipe, and 21 are rounded pipeline section for side, and 22 be downstream side pipeline section,
221 be downstream side pipeline section air outlet slit end, and 3 be electromagnet, and 4 be spring, and 5 be baffle plate, and 6 be blower fan, and grey arrow represents air
Or high temperature gas flow flow direction, gray circles represent high temperature combustion zone.
Embodiment
Utility model is further described below in conjunction with the accompanying drawings.
As shown in Figures 1 and 2, flue-cured tobacco horizontal hot air furnace combustion fan heat-insulating protective device, mainly including horizontal cloth
The straight tube 1 put, the bend pipe 2 arranged vertically, the electromagnet 3 arranged vertically, the spring 4 arranged vertically and the baffle plate 5 arranged vertically.
Baffle plate 5 is sheet iron, and spring 4, bend pipe 2 and straight tube 1 are formed by non iron metal material processing.Straight tube 1 is that straight connects circle
Pipe.Bend pipe 2 is n shape communicating pipes, including is rounded pipeline section 21 along air-flow direction upstream vertical side, and the horizontal square tube section in middle reaches is with
Swim vertical square tube section 22.Electromagnet 3 is alternating electromagnet, and 220V AC powers are accessed during work.
The top margin of baffle plate 5 is fixedly connected with the bottom of spring 4, and the top of spring 4 is fixedly connected with the bottom of electromagnet 3, and electromagnet 3 is pushed up
End is fixed on the middle reaches square tube section outer wall bottom surface of bend pipe 2.Electromagnet 3- spring 4- baffle plates 5 are arranged vertically.The central axis point of straight tube 1
Other and the center line of electromagnet 3, the center line of spring 4 and baffle plate 5 are vertical.
Baffle plate 5 is irony thin plate.The region of baffle plate 5 can mark off semicircle area and rectangle region, and rectangle region length of short sides is than half
Circle area's radius is big, and the long side in rectangle region bottom and semicircle area top straight flange are completely superposed, and semicircle area diameter and the internal diameter of straight tube 1 are equal.Straight tube 1
Middle part offers the vertical groove 11 freely moved up and down for baffle plate 5, and groove 11 is not completely switched off the tube wall of straight tube 1.Electromagnetism
When iron 3 is powered, moment pulls up baffle plate 5, and the moment of baffle plate 5 moves up distance and the internal diameter of straight tube 1 is equal, at the minimum point of baffle plate 5
In the inner chamber extreme higher position of straight tube 1, baffle plate 5 is in extreme higher position.The minimum point of baffle plate 5 is again along the wink of groove 11 when electromagnet 3 is powered off
Between fall after rise to the inner chamber extreme lower position of straight tube 1, baffle plate 5 is in extreme lower position.Baffle plate 5 is " semicircle+rectangle " structure, semicircle area diameter
Equal with the internal diameter of straight tube 1, rectangle region length of short sides is bigger than semicircle area radius, it can be ensured that be in the minimum point of baffle plate 5 in straight tube 1
During chamber extreme lower position, baffle plate 5 can completely cut through air duct in straight tube 1.When baffle plate 5 is freely moved up and down in groove 11, bullet
The downward extended line of the center line of spring 4 passes through the semicircle area center of circle of baffle plate 5, the downward extended line of the center line of spring 4 and the central shaft of straight tube 1 all the time
Line is vertically intersected on a bit all the time.The semicircle area center of circle of baffle plate 5, the center line of spring 4 and the center line of electromagnet 3 are perpendicular in same all the time
On straight straight line.
Bend pipe 2 along the party upstream that air-flow direction is arranged vertically including being rounded pipeline section 21, horizontally disposed middle reaches square tube
Section and the air intlet end of 22,2 downstream side pipeline section of downstream side pipeline section 22 arranged vertically and the end sealing of middle reaches square tube section air outlet slit
Connection, middle reaches square tube section air intlet end and side are rounded the sealing of the air outlet slit end of pipeline section 21 and connected.The center line of Fang Bianyuan pipeline sections 21
Perpendicular to middle reaches square tube section center line, square tube section central axis in middle reaches is just rounded pipeline section 21 in the center line of downstream side pipeline section 22
Centerline parallel becomes in the center line of downstream side pipeline section 22, the center line of 2 downstream side pipeline section of bend pipe 22, middle reaches square tube section center line and side
Pipe 21 center line threes of section are on same perpendicular.The air outlet slit end 221 of downstream side pipeline section 22 with the central axis of straight tube 1
The vertical length of side of antarafacial and the internal diameter of straight tube 1 are equal, parallel to the air outlet slit end of downstream side pipeline section 22 of the central axial direction of straight tube 1
221 length of sides are no more than the inner chamber radius of straight tube 1.The bottom of 2 downstream side pipeline section of bend pipe 22 is the air outlet slit end 221 of downstream side pipeline section 22,
It is also the air outlet slit end of bend pipe 2, the end face is horizontal plane.The two ends of straight tube 1 are that the air of arrangement and rounded shape vertically enters respectively
Mouth end and the air outlet slit end 12 of vertical arrangement and rounded shape, are separately opened in straight tube 1 on air intlet end pipe wall in addition
If an air outlet slit side of being is rounded the air intlet of pipeline section 21, the outlet is used for the connection of the air intlet of bend pipe 2.Fang Bianyuan pipeline sections
21 air intlets are connected with the air outlet slit sealing that nearby tube wall is opened up of the entrance point of straight tube 1.The inner chamber of bend pipe 2 and the inner chamber phase of straight tube 1
Intercommunicated, bend pipe 2 is arranged on straight tube 1.Electromagnet 3, spring 4 and baffle plate 5 are placed between straight tube 1 and bend pipe 2.Electromagnet
3 are connected with baffle plate 5 by spring 4, and electromagnet 3 and baffle plate 5 are not directly contacted with, it is therefore prevented that baffle plate 5 is in 3 coil electricity of electromagnet
It is magnetized.
The air outlet slit end 221 of 2 downstream side pipeline section of bend pipe 22 and the air outlet slit end 12 of straight tube 1 are mutually perpendicular to but non-intersect, under
Roam all around the would pipeline section 22 and its extend downwardly the air outlet slit end of getting along well of body 12 and intersect, straight tube 1 and its horizontal-extending body are got along well downstream
Intersect at 22 air outlet slit ends 221 of square tube section.The outer wall extreme higher position point height of straight tube 1 is than the air outlet slit end 221 of downstream side pipeline section 22
Highly low 5mm~15mm, the air outlet slit end of bend pipe 2 is higher by the outer wall extreme higher position point 5mm~15mm of straight tube 1, the air outlet slit of straight tube 1
End 12 extends downwardly the most short horizontal range of external wall for 5mm~15mm with downstream side pipeline section 22.The central axis of straight tube 1 and bend pipe 2
Center line is on same perpendicular.
As shown in Figure 1, when electromagnet 3 is powered, electromagnet 3 produces upward electromagnetic attraction, electromagnetism to the moment of baffle plate 5
The electromagnetic force of iron 3 and the upward pulling force of spring 4 exceed the gravity of baffle plate 5, and the minimum point moment of baffle plate 5 is pulled to the inner chamber extreme higher position of straight tube 1,
Baffle plate 5 is in extreme higher position, and the ventilation area of straight tube 1 reaches maximum at once.When baffle plate 5 is in extreme higher position, the quilt of electromagnet 3
Compression, produces downward repulsion, and the electromagnetic force of electromagnet 3 is equal to the downward repulsion of spring 4 and the downward gravity sum of baffle plate 5, and baffle plate 5 is in
Stress balance state.As shown in Figure 2, when electromagnet 3 is powered off, the moment of electromagnet 3 loses the electromagnetic attraction to baffle plate 5, gear
Plate 5 is by the downward repulsion of spring 4 and the downward gravity force action of baffle plate 5, and the minimum point moment of baffle plate 5 is fallen after rise to the inner chamber of straight tube 1 most
Lower position, the ventilation area of straight tube 1 tapers to zero.When baffle plate 5 is in extreme lower position, electromagnet 3 is stretched, and generation is pulled up
Power, the upward pulling force of spring 4 and the downward gravity of baffle plate 5 are equal in magnitude, and baffle plate 5 is in stress balance state.
As shown in Figures 1 and 2, utility model is placed between fire door air inlet and the air outlet slit end of blower fan 6, blower fan
6 be combustion fan, and the central axis upright of straight tube 1 is in fire door.The air intlet end of straight tube 1 and the connection of the air outlet slit end of blower fan 6, straight tube
The level of 1 air outlet slit end 12 is just to fire door air inlet.The intensive flue-cured tobacco controller original combustion fan wiring hole access power supply of electromagnet 3
Line, controller controls the power on/off of electromagnet 3, the i.e. power on/off of electromagnet 3 by controller according to tobacco flue-curing house temperature and baking setting temperature
The relative size of degree is determined.The stable AC powers of the power line of blower fan 6 access external world 220V.
When barn temperature is higher than baking design temperature, electromagnet 3 is powered off, the electromagnet 3 that baffle plate 5 is subject to upward attraction wink
Between disappear, the moment under self gravitation and the down thrust superposition of spring 4 of baffle plate 5 is fallen after rise to extreme lower position, the air blast of blower fan 6 from
The inner chamber of straight tube 1 is flowed through by infinitely great resistance, and air blast is forced to change to be flowed through from the inner chamber of bend pipe 2, and the air of bend pipe 2 is left in the air blast of blower fan 6
Cooling air curtain vertically downward is formed after the port of export, the space between cut-out fire door air inlet and the air outlet slit end 12 of straight tube 1 is blocked
Leaked by the high temperature gas flow of fire door air inlet and heat radiation, prevent high temperature gas flow from scurrying into straight tube 1, so as to protect the He of baffle plate 5
Blower fan 6.If without cooling air curtain interception formed by the structure design of bend pipe 2, the high temperature gas flow that leaks easily is scurried into straight tube 1, first
High temperature scaling loss baffle plate 5, followed by the coil of high temperature scaling loss blower fan 6 before this.When burning does not need combustion-supporting in stove, blower fan 6 is by stove
The double protection of cooling air curtain and baffle plate 5 between door air inlet and air outlet slit end 12, adds the air blast all the time of blower fan 6 cooling
The housing of blower fan 6 and prevention high temperature gas flow are scurried into the housing of blower fan 6, and blower fan 6 uses safer.
When barn temperature is less than baking design temperature, electromagnet 3 is passed through 220V alternating currents, and baffle plate 5 is in extreme higher position.It is curved
Pipe 2 be provided with circle become rhs-structure change air circulation cross-section and it is secondary by air-flow direction change 90 °, the air blast of blower fan 6 from
The drag losses that the inner chamber of straight tube 1 is flowed through is much smaller than the drag losses flowed through out of bend pipe 2 so that the air blast of blower fan 6 changes flows from straight tube 1
Cross, be changed into burning supply combustion air in stove.It is powered to electromagnet 3, then the coil of electromagnet 3 produces upward attraction.Due to
Magnetic effect of electric current, baffle plate 5 be in the coil of electromagnet 3 produce magnetic field in, baffle plate 5 by upward magnetic field force act on, electromagnet 3 to
The upward pulling force of upper magnetic field force and spring 4 exceedes the downward Action of Gravity Field of baffle plate 5, and the moment of baffle plate 5 up moves, the air circulation of straight tube 1
Area moment reaches maximum, and the air blast of blower fan 6 is combustion-supporting through in the bottom horizontal flow sheet of straight tube 1 to stove, conveying air progress into burner hearth, with
Meet heating amount required during tobacco flue-curing and hot blast temperature requirement.When moving on to extreme higher position on baffle plate 5, spring 4 is by being stretched
State change is to confined state, and the upward pulling force of spring 4 changes to downward repulsion, finally maintain spring 4 that baffle plate 5 is subject to
The downward gravity of lower repulsion and baffle plate 5 makes a concerted effort to be equal to the upward electromagnetic attraction state of the coil of electromagnet 3.
Utility model structure innovation, technical characteristic and the technique effect brought are described in detail as follows：
Utility model is with " bend pipe import is tightly connected the air outflow port opened up on straight tube inducer tube wall, and bend pipe is empty
The gas port of export and straight tube air outlet slit end are non-intersect；Electromagnet-spring-baffle plate arranges that baffle plate is in straight tube vertical groove vertically
Move up and down " etc. architectural feature.Utility model includes straight tube 1 and bend pipe 2, electromagnet 3, spring 4 and irony baffle plate 5.Bend pipe 2 is wrapped
Include vertical party upstream and be rounded pipeline section 21, horizontal middle reaches square tube section and vertical downstream side pipeline section 22.The air intlet of bend pipe 2 and straight tube 1
The air outlet slit sealing connection separately opened up on tube wall near air intlet end, the air outlet slit end 12 of straight tube 1 and downstream side pipeline section
22 air outlet slit ends 221 are vertical but non-intersect, and the central axis of straight tube 1 and the center line of bend pipe 2 are on same perpendicular.Straight tube 1
Internal diameter is more than side and is rounded the internal diameter of pipeline section 21, and bend pipe 2 is in n shapes, and the downstream side pipeline section 22 of bend pipe 2 is rounded pipeline section 21 with side and is each perpendicular to directly
The central axis of pipe 1, the side of adding is rounded pipeline section 21 and designed, and causes air to flow through the fluid resistance loss of the inner chamber of bend pipe 2 much larger than stream
The fluid resistance loss of the inner chamber of straight tube 1 is crossed, is when electromagnet 3 is powered, it is desirable to which the minimum point moment of baffle plate 5 is pulled in straight tube 1
Chamber extreme higher position, allows the air blast overwhelming majority of blower fan 6 to directly flow through straight tube 1 and creates favorable conditions.The center line of downstream side pipeline section 22 hangs down
Directly in the central axis of straight tube 1, in the air outlet slit end edge length of side of downstream side pipeline section 22 and straight tube 1 of the central axis of straight tube 1
Footpath is equal, for formed vertically downward and cover the air outlet slit of straight tube 1 powerful cooling air curtain create favorable conditions.Baffle plate 5 connects bullet
Spring 4, the connection electromagnet 3 of spring 4, forms the integral structure of electromagnet 3- spring 4- baffle plates 5.Electromagnet 3- spring 4- baffle plates 5 are erected
Straight arrangement, baffle plate 5 is moved up and down in groove 11.When electromagnet 3 is powered, the minimum point moment of baffle plate 5 is pulled to the inner chamber of straight tube 1 most
High position, the air blast of blower fan 6 flows through straight tube 1 and serves as combustion air.When electromagnet 3 is powered off, the minimum point moment of baffle plate 5 is fallen after rise to straight tube
1 inner chamber extreme lower position, the air blast of blower fan 6 changes because the inner chamber of straight tube 1 is blocked completely by baffle plate 5 to be flowed through from the inner chamber of bend pipe 2 and forms cold wind
Curtain.The structure of electromagnet 3- spring 4- baffle plates 5 can strengthen the reliability that baffle plate 5 is moved up and down in groove 11.
CN20203692508U includes having baffle plate in communicating pipe, communicating pipe, and baffle plate top margin and communicating pipe top hinge connection, baffle plate are close
Fire door pipe side wall opens up steam vent.CN105831790A is inserted in the middle of communicating pipe baffle plate, baffle plate top in casing box, casing box
Side and casing box top hinge connection, baffle plate open up steam vent close to fire door casing box side wall.Utility model instead of above-mentioned two
Numerous steam vent-hinge-the baffle arrangements of side wall of individual art solutions, it is to avoid the whole high temperature gas flow offside walls leaked are many
The high-speed and high-temperature impact stagnation corrosion phenomenon of many steam vent-hinge-baffle arrangements occurs, and enhances the safety that utility model is used
Reliability.
One of technical characteristic that utility model architectural feature is directly resulted in is " electromagnet intermitten service control technique ".Electromagnetism
Iron 3 is interrupted power on/off, can change the air blast glide path of blower fan 6.Electromagnet 3 is powered and powered off, and corresponds respectively to baffle plate 5 and is in
Extreme higher position and in extreme lower position, opens straight tube 1, cut-out bend pipe 2 and opens bend pipe 2, cut-out straight tube 1, the air blast of blower fan 6 is flowed through
The inner chamber of straight tube 1, which enters to serve as combustion air in stove and flow through the inner chamber of bend pipe 2 formation cooling air curtain, vertically cuts off high temperature gas flow level stream
Dynamic route and cooling blower 6.Utility model is interrupted with electromagnet 3 to be powered and power-off regulation and control supply combustion air and cooling blower 6,
Substitute CN20203692508U and CN105831790A and regulate and control baffle plate under static air pressure and baffle plate Action of Gravity Field by torsion chain
90 ° of back rotation, realizes supply combustion air and blocks high temperature gas flow to scurry into Blower Housing.Above-mentioned two patent formula is in communicating pipe
It is interior without air flow and hinge function it is normal under the premise of, dropped back into by baffle plate Action of Gravity Field baffle plate to upright position, to cut off resistance
The function that only high temperature gas flow level is scurried into Blower Housing is secure, but there is hinge and directly contact high temperature gas flow causes hinge high
Warm scaling loss and flapper resistance increase problem, additionally there are when baffle plate does not completely cut through air flow path, combustion-supporting sky
Gas hydrostatic pressure is not obvious, baffle plate be likely to be at vertically and horizontally between a certain centre position, cause combustion air flowing resistance
Power is increased, and then in influence stove the problems such as combustion heat supplying.Utility model supplies combustion air and the two states of cooling blower 6, only
By the power on/off single-factor influence of electromagnet 3, in the absence of other influence factors.Utility model two states control technique is accurate, can
Lean on, safely.
The two of the technical characteristic that utility model architectural feature is directly resulted in are " blower fan do not power off operation technique for blast ".Blower fan
The 6 stable AC powers of access 220V, blower fan 6 is run not by flue-cured tobacco controller control, remains energization Overblow state.Blower fan 6
Burning or formation cooling air curtain protection baffle plate 5 and blower fan 6 in combustion air combustion-supporting furnace are either served as in air blast.Due to the length of bend pipe 2
Small, it is extremely short that the time of bend pipe 2 is flowed through in air blast.In actual baking process, burning but also formation cold wind in combustion air combustion-supporting furnace had not only been served as
The intermediate state time of curtain protection baffle plate 5 and blower fan 6 is remote less than 1 second, and combustion-supporting and cooling influence can be ignored.It is practical
Novel fan 6 remains energization running status, and one is the impact that can avoid upper frequency break-make Electrical change to the coil of motor 6
Infringement, extends the service life of blower fan 6, another two be that can stably cool down housing and prevent high temperature gas flow from scurrying into casing, thoroughly
Eliminate high temperature gas flow to act on the high temperature scaling loss of blower fan 6, three be that the outside flow direction of furnace high-temperature air-flow is changed 90 ° by cooling air curtain
Change level to spray for slow outflow straight down, increase high temperature gas flow and leak resistance, reduce stopping supply combustion air
The outer discharge of period high temperature gas flow, reduces fire door air inlet thermal radiation loss, and then improve the device thermal efficiency.
CN20203692508U and CN105831790A combustion fans interruption, which is powered, runs air blast, and motor coil is by upper frequency break-make
Surge is damaged, and high temperature gas flow, which can be scurried into housing, during power-off causes electromotor high-temperature to be damaged, and high temperature gas flow leaks during power-off
Resistance is unaffected, and the thermal efficiency will not be improved.
The three of the technical characteristic that utility model architectural feature is directly resulted in are " combustion fan multiple protective technologies ".By accompanying drawing
2 understand, when burning does not need combustion-supporting in stove, and the minimum point of baffle plate 5 is in the inner chamber extreme lower position of straight tube 1, completely cuts through in straight tube 1
Air duct, while the inner chamber of bend pipe 2 is flowed through in the air blast of blower fan 6 forms powerful cold wind vertically downward at the air outlet slit end 12 of straight tube 1
Curtain.The air outlet slit side length of side of 2 downstream side pipeline section of bend pipe 22 parallel to the central axis of straight tube 1 is no more than the inner chamber radius of straight tube 1, hangs down
The straight air outlet slit side length of side of downstream side pipeline section 22 and the internal diameter of straight tube 1 in the central axis of straight tube 1 is equal, the center of downstream side pipeline section 22
Line is added between the air outlet slit end 221 of downstream side pipeline section 22 and the level of 1 air outlet slit end of straight tube 12 perpendicular to the central axis of straight tube 1
Away from and vertical spacing there was only the architectural features such as 5mm~15mm, form powerful cooling air curtain, cooling air curtain root is completely covered by straight tube
1 air outlet slit, high temperature gas flow is difficult to scurry into straight tube 1.Between fire door and the coil of blower fan 6, powerful cold wind straight down is had
Triple cooling protection designs such as the powerful air blast that 5 → level of curtain → baffle plate sprays, blower fan 6 remains at ambient temperature level.
In triple protection measure, cooling air curtain plays main protective effect, blows high temperature gas flow open to prevent it from scurrying into, and baffle plate 5 is vertically cut off
The micro high-temperature air flow direction blower fan 6 of straight tube 1 is scurried into, powerful air blast further prevents high temperature gas flow from scurrying into the housing of blower fan 6.It is real
High temperature gas flow is prevented to contact by cooling air curtain with novel guard board 5, while be the air blast of blower fan 6 cooling, all the time in normal temperature environment, nothing
Hidden danger is damaged in high temperature deformation.Utility model baffle plate 5 is sheet iron.In addition, the cut-out of groove 11 air duct of communicating pipe 1 (but it is not complete
The full cut-out tube wall of communicating pipe 1), cut off by the tube wall of communicating pipe 1 from air outlet slit end 12 to combustion fan air outlet slit end
Most high temperature heat transfer effects.CN20203692508U and CN105831790A only have baffle plate vertically cut off in communicating pipe to
The high temperature gas flow flow design of blower fan, blower fan cooling protection functions and effects are unreliable.Above-mentioned two patent formula baffle plate is passed through
The whole high temperature gas flow high speed impact corrosivenesses leaked, use environment is severe, it is desirable to have good incubation and thermal insulation function, real
Border is using showing baffle plate and the problems such as coupled hinge service life is short, high temperature deformation damage rate is high.
The complex art effect that said structure feature and technical characteristic are brought is：Utility model is simple in construction, manufacturing cost
Low, space characteristics of compact layout, combustion fan is stablized without temperature rise, runnability without being heated, is leaked without high temperature gas flow interruption and burn blower fan
Hidden danger, tobacco grower is easy to digestion and grasped.300 flue-cured tobacco continuous tunnel furnace baked tests are shown：Combustion fan shell temperature is consistently lower than 40
DEG C, single-piece manufacturing cost is average less than 50 yuan, is that tobacco grower saves cost (including combustion fan updates and replaced and quality of tobacco declines
Loss) 170,000 yuan/year, blower fan damage (including caused by high temperature combustion fan draft capacity reduce and completely lose) rate by
39% drops to 0%, well below 5.6% nominal failure rate of blower fan factory settings.
Claims (5)
1. flue-cured tobacco horizontal hot air furnace combustion fan heat-insulating protective device, mainly including straight tube, bend pipe, electromagnet, spring and irony
Baffle plate, it is characterised in that：Straight tube is horizontally disposed, and bend pipe, electromagnet, spring and baffle plate are vertical arrangement, baffle plate top margin and bullet
Spring bottom is fixedly connected, and spring top is fixedly connected with electromagnet bottom, and bend pipe includes what is arranged vertically along air-flow direction
Party upstream is rounded pipeline section, horizontally disposed middle reaches square tube section and the downstream side pipeline section arranged vertically, and electromagnet top is fixed on curved
On the square tube section outer wall bottom surface of pipe middle reaches, the air outlet slit opened up near bend pipe air intlet and straight tube air intlet end on tube wall is close
Envelope connection, straight tube air outlet slit end and bend pipe air outlet slit end are non-intersect, and straight tube central axis and bend pipe center line are same perpendicular
In straight plane, straight tube is arranged under bend pipe, and the perpendicular grooves moved up and down for baffle plate are offered in the middle part of straight tube, and electromagnet is powered
When baffle plate minimum point moment be pulled to straight tube inner chamber extreme higher position, straight tube ventilation area reaches maximum, and baffle plate is most during power-off
Low spot moment is fallen after rise to straight tube inner chamber extreme lower position, and straight tube ventilation area tapers to zero.
2. flue-cured tobacco horizontal hot air furnace combustion fan heat-insulating protective device as claimed in claim 1, it is characterised in that：Described gear
Plate includes semicircle area and rectangle region, and the wide side ratio semicircle area radius of rectangle region is big, and the long side in rectangle region bottom and semicircle area top straight flange are complete
Full weight is closed, and semicircle area diameter and straight tube internal diameter are equal.
3. flue-cured tobacco horizontal hot air furnace combustion fan heat-insulating protective device as claimed in claim 1, it is characterised in that：Described is curved
Pipe downstream side pipeline section air outlet slit it is equal perpendicular to the straight tube central axial direction length of side and straight tube internal diameter, parallel to straight tube center
The axis direction length of side is no more than straight tube inner chamber radius.
4. flue-cured tobacco horizontal hot air furnace combustion fan heat-insulating protective device as claimed in claim 1, it is characterised in that：Described is curved
Pipe air outlet slit end is higher by straight tube outer wall extreme higher position point 5mm~15mm, straight tube air outlet slit end and bend pipe downstream side pipeline section to
The most short horizontal range of lower extension outer wall is 5mm~15mm.
5. flue-cured tobacco horizontal hot air furnace combustion fan heat-insulating protective device as claimed in claim 1, it is characterised in that：Described electricity
The 220V AC power wiring holes accessed in magnet power supply line access bulk curing barn controller for combustion fan, combustion fan is used
The stable AC powers of extraneous 220V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621353921.7U CN206354414U (en) | 2016-12-11 | 2016-12-11 | Flue-cured tobacco horizontal hot air furnace combustion fan heat-insulating protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621353921.7U CN206354414U (en) | 2016-12-11 | 2016-12-11 | Flue-cured tobacco horizontal hot air furnace combustion fan heat-insulating protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206354414U true CN206354414U (en) | 2017-07-28 |
Family
ID=59374328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621353921.7U Expired - Fee Related CN206354414U (en) | 2016-12-11 | 2016-12-11 | Flue-cured tobacco horizontal hot air furnace combustion fan heat-insulating protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206354414U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649003A (en) * | 2020-06-09 | 2020-09-11 | 长沙佳能通用泵业有限公司 | Self-balancing multi-stage pump composite pipe |
-
2016
- 2016-12-11 CN CN201621353921.7U patent/CN206354414U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649003A (en) * | 2020-06-09 | 2020-09-11 | 长沙佳能通用泵业有限公司 | Self-balancing multi-stage pump composite pipe |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |