CN102721063B - Air inlet pipe in line type heater, line type heater and spreading machine - Google Patents
Air inlet pipe in line type heater, line type heater and spreading machine Download PDFInfo
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- CN102721063B CN102721063B CN201210213376.1A CN201210213376A CN102721063B CN 102721063 B CN102721063 B CN 102721063B CN 201210213376 A CN201210213376 A CN 201210213376A CN 102721063 B CN102721063 B CN 102721063B
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Abstract
The invention discloses an air inlet pipe in a line type heater. The air inlet pipe comprises a gas pipe for supplying gas, a mixing pipe for mixing the gas with air and air inlets, wherein the mixing pipe is communicated with the gas pipe; the air inlets which are communicated with external atmosphere and the mixing pipe are formed in the air inlet pipe; one end of the mixing pipe, which is close to the gas pipe, is sleeved with an annular piece in a rotating mode; the air inlets comprise a first air inlet and a second air inlet which can be communicated with each other; one end of the mixing pipe, which is close to the gas pipe, is provided with the first air inlet; and the second air inlet is formed in the annular piece. The invention also discloses the line type heater employing the air inlet pipe and a spreading machine which heats an ironing plate by using the line type heater. Therefore, a communication area between the first air inlet and the second air inlet which are formed in the mixing pipe and the annular piece respectively can be adjusted by rotating the annular piece to change the sizes of the air inlets, so that the inlet resistance of the air inlets can be conveniently and finely adjusted.
Description
Technical field
The present invention relates to line style heating field, particularly, relate to air inlet pipe in a kind of line style heater, use the line style heater of this air inlet pipe and use the paver of this line style heater.
Background technology
At present, there is a kind of mode heating by line style heater in the heating field of screed in paver, wherein, as described in Figure 1, the line style heating tube 2 that this line style heater generally includes the air inlet pipe 1 of feed combustion gas and is communicated with this air inlet pipe 1, this line style heating tube 2, for linear pattern designs, is provided with multiple boccas 3 along its length, and the flame being sprayed by this bocca 3 heats screed.When the screed that is paver in reality heats, normal use comprises that the heating system of multiple above-mentioned line style heaters carries out.Particularly, the adjacent setting successively of the plurality of line style heater, to carry out homogeneous heating to screed.This line heating system has the advantages such as homogeneous heating, heat time be short.
In existing line style heater, as shown in Figure 2, its air inlet pipe 1 generally includes for the Gas Pipe 11 of feed combustion gas and the gas mixing pipe 12 for this combustion gas is mixed with air, the first end of this gas mixing pipe 12 is communicated with Gas Pipe 11, combustion gas is fed in gas mixing pipe 12, in order to facilitate the final burning of combustion gas, in existing line style heater, all need first this combustion gas and air to be mixed, therefore, conventionally in the upper end of gas mixing pipe 12, air inlet 13 is set, and by adjust the entrance resistance of this air inlet 13 realize air inlet amount adjusting so that air air inflow and gas inlet amount match, thereby ensure the combustion efficiency of combustion gas at bocca 3 places.Particularly, the end of Gas Pipe 11 is provided with nozzle 16, and this nozzle 16 extend in gas mixing pipe 12, and in nozzle 16 outsides around there being sleeve 17, the sheathed gas mixing pipe of this sleeve 17 12 is outer and hide air inlet 13, and trip bolt 22 on it is fastening.Air can enter in air inlet 13 by the gap between sleeve 17 and gas mixing pipe 12.
In the actual use procedure of screed being heated at above-mentioned line style heater, need to regulate the matching relationship of air from inlet and the gas inlet amount of air inlet 13, the two is mated mutually, thereby make the air mixture sufficient combustion at bocca 3 places and ensure final heating effect.
Therefore,, based on said structure of the prior art, because the gas inlet amount from nozzle 16 is non-adjustable, prior art conventionally adopts and regulates the mode of air inlet amount to carry out the adjusting of matching relationship between the two.Particularly, in the time that needs regulate air inlet amount, need to unclamp trip bolt 22, and the position of up-down adjustment sleeve 17, to change the distance of air inlet 13 apart from sleeve 17 openends, regulate air to enter the inlet streams dynamic resistance of air inlet 13 from sleeve 17 ends, regulating behind the position of sleeve 17, then by trip bolt 22 fixed muffle positions.But, in above-mentioned regulative mode, there is following shortcoming:
1, owing to adopting the mode of manual up-down adjustment sleeve 17 positions, after locking trip bolt 22, be difficult for determining the distance of the original position of sleeve 17 and adjusting position, thereby be difficult for realizing the fine setting of air inlet amount;
2, due in the time regulating air intake flow resistance at every turn, all need through repeatedly repeatedly regulating, just can make the effect of air inlet amount best, therefore,, in the each adjusting in this repeatedly regulates repeatedly, all need trip bolt 22 to unclamp again fastening, in the adjustment process of primary air air inflow, need to repeatedly unclamp and fastening trip bolt more than 22 time, therefore complex operation, efficiency is lower.
Therefore, provide a kind of convenient air inlet pipe that regulates matching relationship between air inlet amount and gas inlet amount to there is positive effect.
Summary of the invention
The object of this invention is to provide the air inlet pipe in a kind of line style heater, the convenient air inlet amount that regulates of this air inlet pipe, to facilitate the matching relationship regulating between air inlet amount and gas inlet amount.
Another object of the present invention is to provide a kind of line style heater, and this line style heater uses air inlet pipe provided by the invention.
A further object of the present invention is to provide a kind of paver, and this paver uses line style heater provided by the invention to heat screed.
To achieve these goals, according to an aspect of the present invention, air inlet pipe in a kind of line style heater is provided, this air inlet pipe comprises for the Gas Pipe of feed combustion gas and the gas mixing pipe for described combustion gas is mixed with air, described gas mixing pipe is communicated with described Gas Pipe, in described air inlet pipe, be provided with the air inlet that is communicated with ambient atmosphere and described gas mixing pipe, wherein, one end of the close described Gas Pipe of described gas mixing pipe is rotatably arranged with ring-shaped article, described air inlet comprises the first air inlet and second air inlet that can be communicated with, described the first air inlet is arranged on one end of close described Gas Pipe of described gas mixing pipe, described the second air inlet is arranged on described ring-shaped article.
Preferably, described the second air inlet equals the circumferential lengths of corresponding described the first air inlet around the circumferential lengths of pivot.
Preferably, the end of described Gas Pipe is provided with the nozzle being communicated with described Gas Pipe and is set in the sleeve of this nozzle outside, and described nozzle stretches in described gas mixing pipe, and described jacket casing is located at the outside of described ring-shaped article.
Preferably, described sleeve hides described air inlet completely, has the flow-guiding channel that is communicated with ambient atmosphere and described air inlet between described sleeve and described gas mixing pipe.
Preferably, described the second air inlet is the open slot being formed on vertically on the sidewall of described ring-shaped article, and the opening of this open slot is formed on the upper end of described ring-shaped article.
Preferably, described the first air inlet is the circular hole being formed on one end of close described Gas Pipe of described gas mixing pipe, and the diameter of this circular hole equals the width of described open slot.
Preferably, on described gas mixing pipe, be provided with snap ring, the lower end of described ring-shaped article is spacing by this snap ring.
Preferably, the arranged outside of described sleeve has trip bolt, and this trip bolt coordinates with the sidewall thread of described sleeve and compresses described ring-shaped article.
According to a further aspect in the invention, a kind of line style heater is provided, this line style heater comprises air inlet pipe and line style heating tube, this line style heating tube is provided with multiple boccas along its length, described air inlet pipe is air inlet pipe provided by the invention, wherein, one end away from described Gas Pipe of described gas mixing pipe is communicated with described line style heating tube.
In accordance with a further aspect of the present invention, provide a kind of paver, this paver comprises screed and the line style heater for this screed heating, and described line style heater is described line style heater provided by the invention.
Pass through technique scheme, owing to being provided with the ring-shaped article being rotatably set in outside gas mixing pipe in air inlet pipe provided by the invention, therefore be that adjustable setting is respectively positioned at the first air inlet on gas mixing pipe and ring-shaped article and the connected region of the second air inlet by rotating this ring-shaped article, change the size of air inlet, thereby regulate the entrance resistance of air inlet, therefore can conveniently finely tune the entrance resistance of air inlet, and do not need repeatedly fastening and unclamp the auxiliary members such as trip bolt and can complete the adjusting of primary air air inflow, and make to use line style heater and the paver of this air inlet pipe practical.
Other features and advantages of the present invention are described in detail the detailed description of the invention part subsequently.
Brief description of the drawings
Accompanying drawing is to be used to provide a further understanding of the present invention, and forms a part for description, is used from explanation the present invention, but is not construed as limiting the invention with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the perspective view of the line style heater that provides of prior art;
Fig. 2 is the side-looking structural representation (band broken section) of the line style heater that provides of prior art;
Fig. 3 is the side-looking structural representation (band broken section) of the line style heater that provides of first embodiment of the invention;
Fig. 4 is the side-looking structural representation (band broken section) of the line style heater that provides of second embodiment of the invention;
Fig. 5 is the perspective view of the ring-shaped article that provides of second embodiment of the invention;
Fig. 6 is the structural representation (band broken section) of the nozzle that provides of third embodiment of the invention;
Fig. 7 is the part-structure schematic diagram of heating system provided by the invention.
Description of reference numerals
1 air inlet pipe 2 line style heating tubes
3 bocca 4 first air inlets
5 second air inlet 6 ring-shaped articles
7 open slot 8 snap rings
9 throttling element 10 screed casings
11 Gas Pipe 12 gas mixing pipes
13 air inlet 14 first screw threads
15 second screw thread 16 nozzles
17 sleeve 20 first screed casings
22 trip bolt 91 restriction
92 screw portion
16a nozzle body 16b jet channel
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, detailed description of the invention described herein only, for description and interpretation the present invention, is not limited to the present invention.
In the present invention, in the situation that not doing contrary explanation, the noun of locality of use is as normally undefined in the normal situation about using of line style heater provided by the invention in " upper and lower ", particularly can be referring to figs. 2 to the page shown in Fig. 4.
In paver provided by the invention, adopting the heating system of line style heating tube composition is that screed heats.Wherein, as shown in Fig. 3 to Fig. 7, ground same as the prior art, this air inlet pipe 1 provided by the invention comprises for the Gas Pipe 11 of feed combustion gas and the gas mixing pipe 12 for combustion gas is mixed with air, one end of the close Gas Pipe 11 of this gas mixing pipe 12 is communicated with Gas Pipe 11, and one end away from Gas Pipe 11 of this gas mixing pipe 12 is communicated with line style heating tube 2, air mixture is fed in line style heating tube 2, and light rear ejection by bocca 3, thereby screed is heated.And in order realizing, combustion gas and air to be mixed, to be provided with the air inlet 13 being communicated with gas mixing pipe 12 in air inlet pipe 1 provided by the invention, air enters into gas mixing pipe 12 from this air inlet 13, thus with mix from the combustion gas of Gas Pipe 1.
Wherein preferably, for convenient Gas Pipe 11 and the gas mixing pipe 12 of connecting, the end of Gas Pipe 11 is provided with the nozzle 16 being communicated with Gas Pipe 11, one end of this nozzle 16 is removably connected to the end of Gas Pipe 11, the other end stretches in gas mixing pipe 12, so that the combustion gas in Gas Pipe 11 is fed in gas mixing pipe 12.
In order to realize object of the present invention, the invention provides three kinds of embodiments regulates the matching relationship between air inlet amount and gas inlet amount, wherein the related regulative mode of first two embodiment is adjusting air inlet amount, and the related regulative mode of the third embodiment is the mode that adopts regulating gas air inflow.These three kinds of embodiments, only for the present invention is described, are not limited to the present invention.
As shown in Figure 3, in the first embodiment of the present invention, air inlet pipe 1 provided by the invention comprises the inlet adjusting device that can hide air inlet 13, this inlet adjusting device is provided with the first screw thread 14, and in air inlet pipe 1, be provided with the second screw thread 15, thereby inlet adjusting device can be connected in air inlet pipe 1 by the threaded engagement of this first screw thread 14 and the second screw thread 15.Wherein, because the inlet adjusting device in air inlet pipe 1 provided by the invention adopts thread fiting mode to be connected with air inlet pipe 1, therefore in order to realize the entrance resistance that is regulated air inlet 13 by this inlet adjusting device, only need screw this inlet adjusting device with respect to the air inlet pipe 1 that forms air inlet 13 is the adjustable entrance resistance that is positioned at the air inlet 13 in air inlet pipe 1, this air inlet 13 is apart from the distance of inlet adjusting device end, therefore, can change the air inlet amount entering from air inlet 13.
And in the mode of this threaded engagement, because the initial position of the pipe fitting before and after regulating is known, by manually screwing the mode of inlet adjusting device, the convenient entrance resistance that regulates air inlet 13, and can realize the entrance resistance of air inlet 13 is finely tuned.Unlike the prior art, in said process, do not need repeatedly fastening and operating process that unclamp the auxiliary members such as trip bolt, can complete the adjusting of primary air air inflow.
It should be noted that, the inlet adjusting device that can realize above-mentioned purpose has multiple, the especially screw thread set-up mode of itself and air inlet pipe 1, and therefore the present invention for convenience of description, at this introduction optimal way wherein.In optimal way as shown in Figure 3, inlet adjusting device comprises the sleeve 17 that is set in air inlet 13 outsides, is provided with the first screw thread 14 on the inwall of this sleeve 17.There are single sleeve 17 and air inlet pipe 1 to carry out threaded engagement and complete the adjusting of the entrance resistance to air inlet 13.For handled easily, as a kind of preferred embodiment, as shown in Figure 3, air inlet 13 is arranged on one end of close Gas Pipe of gas mixing pipe 12, and more preferably, in order to prevent that the air in ambient atmosphere from directly pouring in gas mixing pipe 12, hides air inlet 13 completely by sleeve 17, and in order to ensure the connection of this air inlet 13 and ambient atmosphere, between sleeve 17 and gas mixing pipe 12, there is the flow-guiding channel that is communicated with ambient atmosphere and air inlet 13.This flow-guiding channel can be various ways, wherein preferably, the second screw thread 15 that is formed on the first screw thread 14 on sleeve 17 inwalls and/or be formed on gas mixing pipe 12 outer walls can be set to intermittent screw thread structure, this intermittent screw thread structure can be with reference to the intermittent screw thread structure on the tapping cutter of thread mill drilling, intermittent screw thread is different from continuous thread, it can either ensure the good connection of ambient atmosphere and air inlet 13, can not destroy again the threaded engagement of the second screw thread 15 and the first screw thread 14, certainly in addition, also can be by larger the gap design of the threaded engagement between the first screw thread 14 and the second screw thread 15, using as flow-guiding channel, for this type of mode, can make like this air inlet 13 be communicated with ambient atmosphere and gas mixing pipe 12, the present invention does not limit this.
Wherein, be gas mixing pipe 12 feed combustion gas by nozzle 16, and can realize the adjusting of the entrance resistance to being formed on the air inlet 13 on gas mixing pipe 12 by turnbarrel 17, regulate particularly the distance of this air inlet 13 apart from sleeve 17 openends, to regulate air to enter into the resistance of air inlet 13 from this openend.Wherein, in order to facilitate the rotation of sleeve 17, and reduce the impact on Gas Pipe 11,
Although adopted thread connecting mode, in order further to ensure the connective stability of gas mixing pipe 12 and Gas Pipe 11, preferably, the outside of sleeve 17 also can be provided with trip bolt 22, and this trip bolt 22 coordinates with the sidewall thread of sleeve 17.By using the instruments such as screwdriver to screw the head of this trip bolt 22, can make the end of this trip bolt 22 compress gas mixing pipe 12, thereby realize, sleeve 17 is stably fixed on gas mixing pipe 12.Although be wherein provided with prior art in similar trip bolt 22, but carry out the adjusting of air inlet 13 owing to adopting engage thread, therefore need be in the match and regulate of primary air air inflow and gas inlet amount, repeatedly fastening and unclamp this trip bolt 22.Only need in the time that regulating, unclamp by needs, and fastening after regulating.Therefore, the air inlet pipe that first embodiment of the invention provides can realize object of the present invention, conveniently carries out the adjusting of air inlet amount, thereby can conveniently regulate the matching relationship of air inlet amount and gas inlet amount.
In the first embodiment of the present invention, the sleeve 17 single except above-mentioned use carries out the mode of threaded engagement with gas mixing pipe 12, and under design of the present invention, inlet adjusting device can also carry out threaded engagement by its mode and air inlet pipe 1.For example, this sleeve 17 can be fixed as one with nozzle 16, and it is connected to nozzle 16 in Gas Pipe 11 by threaded engagement, like this in the situation that ensureing that combustion gas is not revealed, can realize equally the position of sleeve 17 with respect to air inlet 13 by swivel nozzle 16, thereby regulate the entrance resistance of this air inlet 13.Wherein sleeve 17 can be set in to these nozzle 16 outsides stretches in gas mixing pipe 12 not affect this nozzle 16.For this type of mode of texturing, all should drop in protection scope of the present invention.
Except above-mentioned the first embodiment, as shown in Figure 4, in the air inlet pipe providing at the second embodiment provided by the invention, identical with the first embodiment is, this air inlet pipe 1 comprises for the Gas Pipe 11 of feed combustion gas and the gas mixing pipe 12 for combustion gas is mixed with air, gas mixing pipe 12 is communicated with institute Gas Pipe 11, in air inlet pipe 1, be provided with the air inlet 13 that is communicated with ambient atmosphere and gas mixing pipe 12, different from the first embodiment is, in order to realize object of the present invention, one end of the close Gas Pipe 11 of gas mixing pipe 12 is rotatably arranged with ring-shaped article 6, and air inlet 13 comprises the first air inlet 4 and second air inlet 5 that can be communicated with, the first air inlet 4 is arranged on one end of close Gas Pipe 11 of gas mixing pipe 12, the second air inlet 5 is arranged on ring-shaped article 6, therefore, by rotating this ring-shaped article, can make the first air inlet 4 different with the connected region of the second air inlet 5, can change the size of air inlet 13, thereby can realize the adjusting of air inlet amount, and identical with the first embodiment, can carry out equally the fine setting of air inlet amount, and do not need repeatedly to carry out fastening and step that unclamp the securing members such as trip bolt, practical.
Wherein, for equal adjustable air inflow under any circumstance, preferably, be arranged on the second air inlet 5 on ring-shaped article 6 and equal to be arranged on around the circumferential lengths of pivot the corresponding circumferential lengths of the first air inlet 4 on gas mixing pipe 12.In the time that the axial length of the two overlaps, the entrance resistance minimum of air inlet 13, air inlet amount is also corresponding maximum.In the time that needs regulate air inlet amount, only need screw ring-shaped article 6 and can change the connected region of this first air inlet 4 and the second air inlet 5, i.e. the size of air inlet 13, thus regulate the entrance resistance of air inlet 13 to regulate air inlet amount.To avoid two air inlets that circumferential lengths is different that the problem of the entrance resistance of air inlet 13 occurs can not regulate after rotation relatively.
As a kind of preferred embodiment, identical with the first embodiment, same preferably air inlet 13 is not directly exposed in ambient atmosphere, to prevent the impact of air-flow to gas mixing pipe 12.Therefore, as shown in Figure 4, can be fixed with sleeve 17 in one end of the close Gas Pipe 11 of gas mixing pipe 12, and be set in the outside of ring-shaped article 6 by this sleeve 17, and expose at least in part the second air inlet 5, wherein preferably, sleeve 17 hides the first air inlet 4 completely,, can realize by sleeve 17 and hide the object that is communicated with the air inlet 13 forming due to the first air inlet 4 and the second air inlet 5 completely.Because this sleeve 17 exposes at least partly the second air inlet 5 and all covers the first air inlet 4, outside air can only enter in the first air inlet 4 by the gap between ring-shaped article 6 and sleeve 17 and the second air inlet 5, and can not make air directly impact the first air inlet 4.That is, have the flow-guiding channel that is communicated with ambient atmosphere and air inlet 13 between sleeve 17 and gas mixing pipe 12, this flow-guiding channel is gap and the second air inlet 5 between ring-shaped article 6 and sleeve 17.Thereby identical with the first embodiment, present embodiment can avoid outside rapid air-flow directly to pour gas mixing pipe 12 interior caused and the uneven problem that affects combustion efficiency of combustion gas mixing by air inlet 13 equally.
Particularly, as shown in Figure 5, the second air inlet 5 is for being formed on vertically the open slot 7 on the sidewall of ring-shaped article 6, and the opening of this open slot 7 is formed on the upper end of ring-shaped article 6.This open slot can be the structure such as square groove structure or other such as waist type grooves as shown in the figure.And preferably, the first air inlet 4 is for being formed on the circular hole on one end of close Gas Pipe 11 of gas mixing pipe 11, and the diameter of this circular hole equals the width of open slot 7.This circular hole can just be contained in this open slot 7, only need can realize by the cooperation of this open slot and circular hole by rotating this ring-shaped article 6 adjusting of the entrance resistance of air inlet 13.
In addition, for spacing this ring-shaped article 6 is at the axial location of gas mixing pipe 12, preferably, be provided with snap ring 8 on gas mixing pipe 12, the lower end of ring-shaped article 6 is spacing by this snap ring 8.This snap ring is common parts in this area, and except this mode, other locating parts that can expect for those skilled in the art, all fall within the scope of protection of the present invention.
Identical with the first embodiment, the arranged outside of this sleeve 17 has trip bolt 22, and this trip bolt 22 coordinates with the sidewall thread of sleeve 17.Different, by using the instruments such as screwdriver to screw the head of this trip bolt 22, can make the end of this trip bolt 22 compress ring-shaped article 6, thereby can prevent that this ring-shaped article 6 from shaking and air inlet 13 is impacted.In addition, for fixing gas mixing pipe 12 and sleeve 17, the extended ring-shaped article 6 in upper end of gas mixing pipe 12, this extension can use the auxiliary members such as trip bolt and sleeve 17 to be fixed equally.Therefore, although be provided with prior art in similar trip bolt 22, but owing to adopting rotatable ring-shaped article 6 to carry out the adjusting of air inlet 13, therefore need be in the match and regulate of primary air air inflow and gas inlet amount, repeatedly fastening and unclamp this trip bolt 22.Only need in the time that regulating, unclamp by needs, and fastening after regulating.Therefore, the air inlet pipe that second embodiment of the invention provides can realize object of the present invention, conveniently carries out the adjusting of air inlet amount, thereby can conveniently regulate the matching relationship of air inlet amount and gas inlet amount.
Above-mentioned first, second embodiment is all modes that air inlet amount is regulated, and in the 3rd embodiment provided by the invention, can regulate gas inlet amount.In prior art, the jet amount of the nozzle 16 that Gas Pipe 11 ends arrange is unadjustable, not only can not play the effect of matching relationship between regulating gas air inflow and air inlet amount, and in heating system, can not meet the size of different screed casings.
Particularly, as shown in Figure 7, because each line style heater is all arranged in independent screed casing 10, owing to there being the screed casing 10 of different sizes, for example, in the first screed casing 20, its length is less than other screed casings 10, its combustion chamber volume and waste gas outlet are less than other casings equally, thereby, the burning resistance that is positioned at line style heater is wherein larger, under identical gaseous-pressure, air mixture exit velocity is slower, makes bocca 3 places of the line style heater in this first screed casing 20 be prone to tempering phenomenon.Therefore, need to, according to the length of place screed casing, regulate the gas supply amount that is positioned at line style heating tube wherein.Therefore, the air inlet pipe that third embodiment of the invention provides, not only can regulate the matching relationship between air inlet amount and gas inlet amount, and can make to use the line style heater of this air inlet pipe to adapt to the screed casing of different sizes.Practical.
Particularly, in the present embodiment, taking the structure of the first embodiment or the second embodiment as basis, in the Gas Pipe 11 in air inlet pipe provided by the invention, be provided with can adjustment of combustion gas flow throttling element 9.Therefore realize the adjusting of the combustion gas inlet to entering gas mixing pipe 12 by this throttling element 9.In real work, compare the mode that throttling element 9 is set on the body of Gas Pipe 11, for this throttling element 9 is conveniently set, preferably, can on nozzle 16, be provided with this throttling element 9.This nozzle 16 is identical with the nozzle 16 in the first embodiment and the second embodiment, and one end is connected in Gas Pipe 11, and the other end stretches in gas mixing pipe 12.Therefore, can realize the change of the gas flow to this nozzle 16 by this throttling element 9, thereby realize above-mentioned purpose of the present invention.
Wherein preferably, as shown in Figure 6, nozzle 16 comprises nozzle body 16a and be formed on the jet channel 16b in this nozzle body 16a, and throttling element 9 comprises restriction 91, this restriction 91 radially through jet channel 16b and with nozzle body 16a threaded engagement.Thereby, can realize the adjusting of the gas flow to nozzle 16 by the cooperation of restriction 91 and jet channel 16b.For said structure, those skilled in the art can carry out various changes and replacement, all should drop in protection scope of the present invention as long as belong to design of the present invention.
In addition preferably, the end of throttling element 9 is provided with the portion that screws 92 that radial dimension is greater than this throttling element 9, thus convenient this throttling element 9 that regulates.
In addition, nozzle 16 provided by the invention can removably be connected in Gas Pipe 1,, can realize the replacing of this nozzle 16 that is, for example, can adopt the mode of threaded engagement to connect.Therefore, in the time of the screed casing 10 of corresponding different size, can change the nozzle of different size, this can meet object of the present invention equally, and promotes further the practicality of the air inlet pipe that the 3rd embodiment provides.
Therefore, as shown in Figure 7, in a kind of paver provided by the invention in the heating system of screed, this heating system comprises multiple line style heaters of adjacent setting successively, the plurality of line style heater is divided into the multiple screed casings 10 that are arranged in adjacent setting, wherein, this screed casing 10 comprises at least one first screed casing 20, varying in size of the size of this first screed casing 20 and adjacent screed casing 10, therefore in order to realize object of the present invention, the line style heater that line style heater in this first screed casing 10 provides for third embodiment of the invention.Therefore, can improve the practicality of the paver of this heating system and this heating system of use.
To sum up, the air inlet pipe that the present invention first, second and the 3rd embodiment provide all can conveniently regulate the matching relationship between air inlet amount and gas inlet amount, and the air inlet pipe that the 3rd embodiment provides can also solve the bocca tempering problem that different big or small screed casings bring, therefore air inlet provided by the invention, use the line style heater of this air inlet and use the heating system of this line style heater and paver all to there is higher practicality and promotional value.
Below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characterictic described in above-mentioned detailed description of the invention, in reconcilable situation, can combine by any suitable mode, for fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible combinations.
In addition, between various embodiment of the present invention, also can be combined, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. the air inlet pipe in a line style heater, this air inlet pipe (1) comprises for the Gas Pipe (11) of feed combustion gas and the gas mixing pipe (12) for described combustion gas is mixed with air, described gas mixing pipe (12) is communicated with described Gas Pipe (11), in described air inlet pipe (1), be provided with the air inlet (13) that is communicated with ambient atmosphere and described gas mixing pipe (12), it is characterized in that, one end of the close described Gas Pipe (11) of described gas mixing pipe (12) is rotatably arranged with ring-shaped article (6), described air inlet (13) comprises the first air inlet (4) and second air inlet (5) that can be communicated with, described the first air inlet (4) is arranged on one end of close described Gas Pipe (11) of described gas mixing pipe (12), described the second air inlet (5) is arranged on described ring-shaped article (6).
2. the air inlet pipe in line style heating tube according to claim 1, is characterized in that, described the second air inlet (5) equals the circumferential lengths of corresponding described the first air inlet (4) around the circumferential lengths of pivot.
3. the air inlet pipe in line style heater according to claim 1 and 2, it is characterized in that, the end of described Gas Pipe (11) is provided with the nozzle (16) being communicated with described Gas Pipe (11) and is set in the outside sleeve (17) of this nozzle (16), described nozzle (16) stretches in described gas mixing pipe (12), and described sleeve (17) is set in the outside of described ring-shaped article (6).
4. the air inlet pipe in line style heater according to claim 3, it is characterized in that, described sleeve (17) hides described air inlet (13) completely, has the flow-guiding channel that is communicated with ambient atmosphere and described air inlet (13) between described sleeve (17) and described gas mixing pipe (12).
5. the air inlet pipe in line style heater according to claim 4, it is characterized in that, described the second air inlet (5) is for being formed on vertically the open slot (7) on the sidewall of described ring-shaped article (6), and the opening of this open slot (7) is formed on the upper end of described ring-shaped article (6).
6. the air inlet pipe in line style heater according to claim 5, it is characterized in that, described the first air inlet (4) is for being formed on the circular hole on one end of close described Gas Pipe (11) of described gas mixing pipe (11), and the diameter of this circular hole equals the width of described open slot (7).
7. the air inlet pipe in line style heater according to claim 1, is characterized in that, is provided with snap ring (8) on described gas mixing pipe (12), and the lower end of described ring-shaped article (6) is spacing by this snap ring (8).
8. the air inlet pipe in line style heater according to claim 3, it is characterized in that, the arranged outside of described sleeve (17) has trip bolt (22), and this trip bolt (22) coordinates with the sidewall thread of described sleeve (17) and compresses described ring-shaped article (6).
9. a line style heater, this line style heater comprises air inlet pipe (1) and line style heating tube (2), this line style heating tube (2) is provided with multiple boccas (3) along its length, it is characterized in that, described air inlet pipe (1) is the air inlet pipe (1) in the line style heater described in any one in claim 1-8, wherein, one end away from described Gas Pipe (11) of described gas mixing pipe (12) is communicated with described line style heating tube (2).
10. a paver, this paver comprises screed and the line style heater for the heating of this screed, it is characterized in that, described line style heater is line style heater described in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210213376.1A CN102721063B (en) | 2012-06-26 | 2012-06-26 | Air inlet pipe in line type heater, line type heater and spreading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210213376.1A CN102721063B (en) | 2012-06-26 | 2012-06-26 | Air inlet pipe in line type heater, line type heater and spreading machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102721063A CN102721063A (en) | 2012-10-10 |
| CN102721063B true CN102721063B (en) | 2014-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201210213376.1A Active CN102721063B (en) | 2012-06-26 | 2012-06-26 | Air inlet pipe in line type heater, line type heater and spreading machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103478183B (en) * | 2013-10-11 | 2015-04-15 | 广州浩雅机械设备有限公司 | Heating and flame spraying tube for food fuel gas baking tunnel furnace |
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| CN102721063A (en) | 2012-10-10 |
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