CN208995877U - A kind of venturi effect heated bitumen nozzle assembly and synchronous spread heated bitumen paver - Google Patents
A kind of venturi effect heated bitumen nozzle assembly and synchronous spread heated bitumen paver Download PDFInfo
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- CN208995877U CN208995877U CN201821706431.XU CN201821706431U CN208995877U CN 208995877 U CN208995877 U CN 208995877U CN 201821706431 U CN201821706431 U CN 201821706431U CN 208995877 U CN208995877 U CN 208995877U
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- 239000010426 asphalt Substances 0.000 title claims abstract description 121
- 230000000694 effects Effects 0.000 title claims abstract description 60
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 14
- 239000011295 pitch Substances 0.000 description 29
- 239000007921 spray Substances 0.000 description 14
- 238000010276 construction Methods 0.000 description 7
- 239000010410 layer Substances 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 235000013399 edible fruits Nutrition 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000005381 potential energy Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 230000001458 anti-acid effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012864 cross contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 1
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- Road Paving Machines (AREA)
Abstract
The utility model discloses a kind of venturi effect heated bitumen nozzle assembly and synchronous spread heated bitumen pavers.A kind of venturi effect heated bitumen nozzle assembly, including cylinder, solenoid valve, nozzle valve block and nozzle；Cylinder has cylinder body, piston, piston rod and spring, and piston is slideably positioned in cylinder body, and piston rod is connect with piston；Cylinder body offers venthole；Piston rod, which is offered, is also provided with the second through-hole in its axial first through hole, piston rod, and the second through-hole is connected to first through hole and venthole；Solenoid valve is connected to the venthole of cylinder body；Nozzle valve block has pitch entrance, connector and spout；Pitch entrance is connect with heated bitumen delivery pipe, and heating tube is provided in heated bitumen delivery pipe, and connector is connect with cylinder body, bellows is provided in nozzle valve block, the free end of piston rod can extend in bellows, and bellows can be connected on spout；Nozzle is set on the spout of nozzle valve block.The invention also discloses a kind of synchronous spread heated bitumen pavers.
Description
Technical field
The utility model relates to heated bitumen apparatus fields, more particularly to a kind of venturi effect heated bitumen nozzle assembly and together
Walk spread heated bitumen paver.
Background technique
Heated bitumen, refer to including but not limited to bi tumenf orr oad, polymer modified asphalt, rubber asphalt etc. need by
It heats to reach the pitch and its product of work workability, i.e. heated bitumen need to reach 130-180 DEG C, make it by heating, temperature
At flow regime, reach the property in engineering for spraying, pumping or mixing and stirring with mineral aggregate.Heated bitumen does not include being at normal temperature
The emulsified asphalt of liquid.In general, dynamic viscosity of the heated bitumen in spread is 1.5-3.5Pa.s, it is viscous compared to emulsified asphalt
Degree is 0.1-0.3Pa.s, and phase person differs 10 times or more, and heated bitumen is more sticky.
In asphalt pavement construction, adhesion coating, permeable layers, sealing are widely present in the structure of bituminous pavement, these layers one
As be all spread a thin layer of heated bitumen or emulsified asphalt, effect mainly enhancing thereon, the cohesive force of flowering structure layer,
Waterproof prevents crack and other effects.In conventional construction, adhesion coating, permeable layers, sealing pitch sprinkling, usually use dedicated
Pitch sprinkling car is realized, since the speed ratio that pitch sprinkling car is walked in construction is very fast, can generally achieve 20Km/h or more
Speed, therefore, a certain number of pitches of spread (such as: 1.0Kg/m2), then the spread quantity in the unit time is then opposite
Bigger, continuously being sprayed using pressure pump can make pitch obtain ideal atomizing effect, technically relatively easy, appearance at this time
Easily.
With advances in technology, the appearance of Integral synchronous spread paver, the spread of adhesion coating (or sealing) pitch with
The paving to be integrated on same portion's paver of hot-mix asphalt mixture is realized, avoids first viscous with special asphalt distribution vehicle elder generation's spread
Layer (or sealing), reuse after the completion of this procedure the tired lock of plain asphalt paver making asphalt layer with it is unfavorable.
Synchronous construction compares conventional construction method, has and accelerates speed of application, easy operational procedure, avoids twice working procedure and made
At cross contamination and destroy etc. adverse effect, increase interlayer adhesion advantage.
However, home or overseas launches the paver to only synchronous spread emulsified asphalt in the market at present, it is more excellent
Gesture has the paver of synchronous spread heated bitumen function still in research.
The asphalt distribution technical problem of special pitch sprinkling car paver institute spread synchronous with integrated pitch is different
It causes, this is mainly the difference of environment locating for the two-speed of travel.As described above, walking speed when pitch sprinkling car is constructed
It spends up to 20Km/h or more, converts into 300m/min or more.And the speed of travel of the paver in construction is generally 3-15m/min,
So the speed of pitch sprinkling car is 20 times of paver speed or more.It is wanted according to the relevant technical specification in China or actual techniques
Ask, adhesion coating, sealing spread quantity be generally 0.3-1.2Kg/m2, this will not because of spread equipment difference and change.Therefore it drips
When green distribution vehicle will realize above-mentioned spread quantity, since the speed of travel is fast, then the amount of the required sprinkling also phase within the unit time
The requirement answered is big, and in this case, the opening of nozzle is relatively large, and continuously being sprayed using pressure pump can be such that pitch is managed
The atomizing effect thought, so that adhesion coating or sealing spread are uniform, it is technically relatively easy, easy.
Paver with synchronous pitch sprinkling function, since speed of travel comparison pitch sprinkling car is very slow, in unit
In the case that area spread quantity is constant, then the spread quantity in the unit time is then very small, therefore to realize that pitch is good and spill
Cloth atomizing effect then needs to take different technological means.
The paver of synchronous spread emulsified asphalt, since the dynamic viscosity of emulsified asphalt at normal temperature is lower, about 0.1-
Between 0.3Pa.s, mobility is very good, is not easy to plug nozzle at work, therefore, even if using with emulsified asphalt distribution vehicle
The identical continuity pressure pump of energy, also may be implemented a small amount of spreads in the unit time, together in the case that nozzle bore is smaller
When guarantee atomizing effect.
The Chinese utility model patent of Patent No. CN203583323U discloses a kind of pitch sprinkling paver pulse
Control assembly is sprayed, the technical characteristics of the control assembly are the piston rods that cylinder drives cylinder under the action of pulse signal
It realizes " stretching ", " contracting " movement, realizes the effect of similar discontinuity pump, so that emulsified asphalt is generated pressure, to realize spray effect.
The component can not be used to spray heated bitumen, and reason mainly has three aspects: 1, operating temperature is low.Emulsified asphalt is usually at normal temperature
It uses, part emulsified asphalt can be heated up to certain journey (such as 80 DEG C) use because of requirement of engineering, to increase de-emulsification speed, but emulsify
Pitch is the aqueous solution of pitch, boils, is not available, so cannot reach boiling when its operating temperature highest when reaching 100 DEG C
Temperature is risen, therefore, under such temperature conditions, the material requirements of component is different.Fluorubber mentioned by the patent, this
Class material model is more, when operating temperature is not higher than 100 DEG C, can reach stable use state, but if operating temperature is
130-180 DEG C, then not necessarily guarantee to reach stable use state.2, there is no attemperator.Heated bitumen after use,
Necessarily there is part to remain in gap, the corner part of component, after temperature naturally rings to room temperature, the pitch of these remainings just becomes
At solid-state or semisolid, channel is blocked, so that it cannot reuse.3, sprinkling dielectric viscosity is low.As described above, it emulsifies
For pitch than low 10 times of the viscosity of heated bitumen at work or more, heated bitumen is more sticky.Since the component is not in sprinkling medium
Compressed gas is injected inside (heated bitumen or emulsified asphalt), generated pressure is smaller, it may be difficult to realize good atomizing effect,
The technical requirements in engineering cannot be reached.
The aperture of heated bitumen spread nozzle is larger, is otherwise very easy to cause spray nozzle clogging.When nozzle bore is larger, unit
The pitch sprayed in time is more, and the synchronization spread paver of the prior art is difficult precisely to be controlled to the spread quantity of heated bitumen
System, the operation of heated bitumen spread to realize within the unit time lesser fountain height and to be formed good atomizing effect very because
It is difficult.Therefore, to make heated bitumen obtain good atomizing effect, new principle must just be used.
Utility model content
Based on this, the purpose of the utility model is to provide a kind of structures simply, sprinkling dielectric viscosity is big, the unit time
Fountain height is small, spread atomizing effect is good, the accurate venturi effect heated bitumen nozzle assembly of control and synchronous spread heated bitumen pave
Machine.
The venturi effect heated bitumen nozzle assembly of the utility model includes cylinder, solenoid valve, nozzle valve block and nozzle；
The cylinder has cylinder body, piston, piston rod and spring, and the piston is slideably positioned in the cylinder body, described
Piston rod is connect with the piston, the spring and the piston rod be divided into the two sides of the piston and the spring with it is described
Piston connection；
The cylinder body offers the venthole for introducing compressed air；The piston rod is opened from its middle part to its free end
Equipped with being also provided with the second through-hole in its axial first through hole, the side wall of the piston rod, second through-hole with it is described
First through hole connection, second through-hole can be connected to or disconnect connection with the venthole with the movement of the piston rod；
The solenoid valve is connected to the venthole of the cylinder body；
The nozzle valve block has pitch entrance, connector and spout, and the connector is conllinear with the spout, the drip
Heated bitumen storage chamber is formed between green entrance, connector and spout；
The pitch entrance of the nozzle valve block is connect with heated bitumen delivery pipe, is provided with heating in the heated bitumen delivery pipe
Pipe, the connector are connect with the cylinder body, and bellows is provided in the heated bitumen storage chamber, and the end of the bellows is solid
At the connector, the free end of the piston rod can be extended in the bellows, and the bellows can be connected to institute
It states on spout；
The nozzle is set on the spout of the nozzle valve block.
In the initial state, spring handle piston, piston rod are to one for the venturi effect heated bitumen nozzle assembly of the utility model
Side pressure is compeled, and is connected to the bellows for connecting piston rod on spout, and the second through-hole is connected to venthole disconnection at this time, and nozzle is in
Closed state；When solenoid valve is opened, when being passed through compressed air into cylinder body, under the pressure of air, push piston to spring one
Side is mobile, while compressed spring increases spring by savings potential energy, when piston continues to move to and is connected to the second through-hole with venthole,
Compressed air enters first through hole along the second through-hole and quickly sprays, when entering nozzle valve block, in heated bitumen storage chamber
The mixing of heated bitumen moment and sprayed from nozzle, synchronize, when piston is mobile to spring side, bellows also therewith with spray
Mouth separation, spout are opened, and the heated bitumen in heated bitumen storage chamber is filled to around spout；When the intracorporal compressed air of cylinder is along
After two through-holes enter first through hole, compressed air is sprayed to spout, and makes to form negative-pressure adsorption effect around spout, thus by hot
Pitch is adsorbed onto sprinkling air-flow, and compressed air is synchronous after mixing with heated bitumen to be sprayed, and realizes venturi effect；When solenoid valve closes
It closes, the intracorporal gas pressure decline of cylinder, spring elapses piston together with piston rod, bellows under the action of potential energy together, directly
To bellows is abutted to spout, nozzle is closed, and first through hole of the gas through solenoid valve and piston rod is discharged jointly, is restored just
Beginning state.
Under conditions of requiring fountain height very little in single time, the compressed air that the first through hole of piston rod introduces is mixed into,
When compressed air is sprayed from first through hole, the opening of first through hole can nearby generate low pressure adsorbent effect, that is, we are usually
The venturi effect said forms extraordinary spray so that heated bitumen be made to be adsorbed in sprinkling air-flow in the absence of stress
Spill effect.
Heated bitumen forms the shape that sprinkling requires in nozzle valve block, is atomized heated bitumen, to form good sprinkling effect
Fruit；The switching frequency of solenoid valve can control the opening and closing time ratio of nozzle, to adjust the spread quantity of heated bitumen.
It is further preferred that second through-hole is opened up along the radial direction of the piston rod.By second through-hole described in
The radial direction of piston rod opens up the connection effect that can increase by second through-hole Yu the first through hole.
It is further preferred that being additionally provided with sealing ring at the connector of the nozzle valve block, the end of the bellows will
The sealing ring compresses.Sealing ring, which is arranged, can increase the leakproofness of connector of nozzle valve block.
It is further preferred that the solenoid valve is connected to by transit joint with the venthole of the cylinder body.It is connect by transition
The solenoid valve is connected to by head with the venthole of the cylinder body, stronger, the better tightness that the two can be made to connect.
It is further preferred that the solenoid valve is the middle low-frequency electrical magnet valve that frequency is 0.1-50Hz.Frequency is 0.1-50Hz
Middle low-frequency electrical magnet valve can be run under suitable frequency, realize that the pulse to heated bitumen is sprayed.
It is further preferred that the bellows is polytetrafluoroethylbellows bellows.Polytetrafluoroethylbellows bellows have very strong
Inoxidizability, flame resistance and anti acid alkali performance, and there is excellent flexibility and resilience.
Compared with the existing technology, the venturi effect heated bitumen nozzle assembly of the utility model is requiring fountain height in single time
Under conditions of very little, the compressed air that the first through hole of piston rod introduces is mixed into, when compressed air is sprayed from first through hole, first
The opening of through-hole can nearby generate low pressure adsorbent effect, that is, our venturi effects for usually saying, so that heated bitumen be made not have
It is adsorbed in the case where having pressure in sprinkling air-flow, forms extraordinary spray effect.
Heated bitumen forms the shape that sprinkling requires in nozzle valve block, is atomized heated bitumen, to form good sprinkling effect
Fruit；The switching frequency of solenoid valve can control the opening and closing time ratio of nozzle, to adjust the spread quantity of heated bitumen.
The venturi effect heated bitumen nozzle assembly of the utility model have structure is simple, sprinkling dielectric viscosity is big, unit when
Between fountain height is small, spread atomizing effect is good, control it is accurate the features such as.
The utility model still further provides a kind of synchronous spread heated bitumen paver, including described in any of the above embodiments
Venturi effect heated bitumen nozzle assembly.
In order to better understand and implement, according to the present invention will be described in detail below with reference to the accompanying drawings.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the venturi effect heated bitumen nozzle assembly preferred structure of the utility model.
Specific embodiment
It mentions in the present specification or up, down, left, right, before and after, front, the back side, top, the bottom that may mention etc.
Positional terms are defined relative to each construction shown in the drawings, they are opposite concepts.Therefore, it is possible to can root
Correspondingly changed according to different location locating for it, different use states.So also should not be by these or others side
Position term is construed to restricted term.
Referring to Fig. 1, Fig. 1 is the structural representation of the venturi effect heated bitumen nozzle assembly preferred structure of the utility model
Figure.The venturi effect heated bitumen nozzle assembly of the utility model includes cylinder 1, solenoid valve 2, nozzle valve block 3 and nozzle 4.
Specifically, the cylinder 1 has cylinder body 11, piston 12, piston rod 13 and spring 14, the sliding of piston 12 setting
In in the cylinder body 11, the piston rod 13 is connect with the piston 12, and the spring 14 is divided into institute with the piston rod 13
It states the two sides of piston 12 and the spring 14 is connect with the piston 12.
The cylinder body 11 offers the venthole 110 for introducing compressed air；The piston rod 13 is from the middle part of it to it
Free end, which is offered, is also provided with the second through-hole 132, institute in its axial first through hole 131, the side wall of the piston rod 13
It states the second through-hole 132 to be connected to the first through hole 131, second through-hole 132 can be with institute with the movement of the piston rod 13
It states the connection of venthole 110 or disconnects connection.
The solenoid valve 2 is connected to the venthole 110 of the cylinder body 11.
The nozzle valve block 3 has pitch entrance 31, connector 32 and spout 33, the connector 32 and the spout 33
Collinearly, heated bitumen storage chamber is formed between the pitch entrance 31, connector 32 and spout 33.
The pitch entrance 31 of the nozzle valve block 3 is connect with heated bitumen delivery pipe 8, is arranged in the heated bitumen delivery pipe 8
There is heating tube 9, the connector 32 is connect with the cylinder body 11, and bellows 5, the ripple are provided in the nozzle valve block 3
The end of pipe 5 is fixed at the connector 32, and the free end of the piston rod 13 can extend in the bellows 5, and described
Bellows 5 can be connected on the spout 33.
The nozzle 4 is set on the spout 33 of the nozzle valve block 3.
Preferably, the second through-hole of the embodiment of the present invention 132 is opened up along the radial direction of the piston rod 13.Described second is led to
Hole 132 is opened up along the radial direction of the piston rod 13 can increase by second through-hole 132 and the connection of the first through hole 131 is imitated
Fruit.
It is additionally provided with sealing ring 6 at the connector 32 of the nozzle valve block 3, the end of the bellows 5 is by the sealing
Circle 6 compresses.Sealing ring 6, which is arranged, can increase the leakproofness of connector 32 of nozzle valve block 3.
The embodiment of the present invention solenoid valve 2 is connected to by transit joint 7 with the venthole 110 of the cylinder body 11.Passed through
It crosses connector 7 and is connected to the solenoid valve 2 with the venthole 110 of the cylinder body 11, stronger, the leakproofness that the two can be made to connect
More preferably.
The solenoid valve 2 preferably selected frequency is the middle low-frequency electrical magnet valve of 0.1-50Hz.Frequency is in 0.1-50Hz
Low-frequency electrical magnet valve can be run under suitable frequency, realize that the pulse to heated bitumen is sprayed.
Preferably, the pressure for the compressed air that the solenoid valve 2 introduces can be between 0.2-1.0MPa.
The heated bitumen temperature that the heated bitumen delivery pipe 8 is delivered to the pitch entrance 31 of the nozzle valve block 3 is 130-180
DEG C, heating tube 9 makes heated bitumen, the nozzle valve block 3 and the nozzle 4 in heated bitumen storage chamber be maintained at temperature 130-180
DEG C, and heating power dissolves the cooled and solidified pitch of the passing remaining in the nozzle valve block 3 and the nozzle 4, keeps channel unimpeded.
The embodiment of the present invention bellows 5 preferably selects polytetrafluoroethylbellows bellows.Polytetrafluoroethylbellows bellows have
Very strong inoxidizability, flame resistance and anti acid alkali performance, and there is excellent flexibility and resilience, maximum operating temperature is 250 DEG C,
Greater than heated bitumen temperature.
It should be pointed out that the venturi effect heated bitumen nozzle assembly of the utility model is particularly suitable for the spread of heated bitumen
Operation.
The working principle of the venturi effect heated bitumen nozzle assembly of the utility model:
(1) under original state, spring 14 is oppressed piston 12, piston rod 13 to side, makes the ripple for connecting piston rod 13
Pipe 5 is connected on spout 33, and the second through-hole 132 is connected to the disconnection of venthole 110 at this time, and nozzle 4 is in close state.
(2) when solenoid valve 2 open, when being passed through compressed air into cylinder body 11, under the pressure of air, push piston 12 to
14 side of spring is mobile, while compressed spring 14 increases spring 14 by savings potential energy, when piston 12 continues to move to and makes second to lead to
Hole 132 is connected to venthole 110, and compressed air enters first through hole 131 along the second through-hole 132 and quickly sprays, when entering
When nozzle valve block 3, mixed with the heated bitumen moment in heated bitumen storage chamber and from nozzle 4 spray, synchronize, piston 12 to
When 14 side of spring is mobile, bellows 5 is also separated with spout 33 therewith, and spout 33 is opened, the heated bitumen in heated bitumen storage chamber
Around filling to spout 33.
(3) after the compressed air in cylinder body 11 enters first through hole 131 along the second through-hole 132, compressed air is to spray
Mouth 33 sprays, and 33 surrounding of spout is made to form negative-pressure adsorption effect, to heated bitumen is adsorbed onto sprinkling air-flow, compressed air
It is synchronous with after heated bitumen mixing to spray, realize venturi effect.
(4) when solenoid valve 2 is closed, the gas pressure decline in cylinder body 11, spring 14 is under the action of potential energy by piston 12
It is elapsed together together with piston rod 13, bellows 5, until abutting bellows 5 to spout, nozzle 4 is closed, and gas is through solenoid valve
2 and piston rod 13 first through hole 131 jointly be discharged, restPose.
The venturi effect heated bitumen nozzle assembly of the utility model is suitably applied with synchronous spread heated bitumen function
Paver.
It was verified that the use of the venturi effect heated bitumen nozzle assembly of the utility model being 0.2- by input pressure
The air of 1.0MPa, frequency of use are the middle low-frequency electrical magnet valve of 0.1-50Hz, keep the temperature heated bitumen by heating tube 9 and dissolve spray
The fix-bitumen of passing remaining in mouth valve block 3 and nozzle 4 can make power under conditions of the speed of travel is 3-15m/min
The heated bitumen that viscosity is 1.5-3.5Pa.s realizes 0.3-1.2Kg/m2Fountain height and good atomizing effect, meet in engineering
Technical requirements.
Compared with the existing technology, the venturi effect heated bitumen nozzle assembly of the utility model is requiring fountain height in single time
Under conditions of very little, the compressed air that the first through hole of piston rod introduces is mixed into, when compressed air is sprayed from first through hole, first
The opening of through-hole can nearby generate low pressure adsorbent effect, that is, our venturi effects for usually saying, so that heated bitumen be made not have
It is adsorbed in the case where having pressure in sprinkling air-flow, forms extraordinary spray effect.
Heated bitumen forms the shape that sprinkling requires in nozzle valve block, is atomized heated bitumen, to form good sprinkling effect
Fruit；The switching frequency of solenoid valve can control the opening and closing time ratio of nozzle, to adjust the spread quantity of heated bitumen.
The venturi effect heated bitumen nozzle assembly of the utility model have structure is simple, sprinkling dielectric viscosity is big, unit when
Between fountain height is small, spread atomizing effect is good, control it is accurate the features such as.
The synchronization spread heated bitumen paver of the utility model, including venturi effect heated bitumen nozzle described in the present embodiment
Component.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.
Claims (7)
1. a kind of venturi effect heated bitumen nozzle assembly, it is characterised in that: including cylinder, solenoid valve, nozzle valve block and nozzle；
The cylinder has cylinder body, piston, piston rod and spring, and the piston is slideably positioned in the cylinder body, the piston
Bar is connect with the piston, and the spring and the piston rod are divided into the two sides of the piston and the spring and the piston
Connection；
The cylinder body offers the venthole for introducing compressed air；The piston rod is offered from its middle part to its free end
Along the first through hole of its axial direction, the second through-hole, second through-hole and described first are also provided on the side wall of the piston rod
Through-hole connection, second through-hole can be connected to or disconnect connection with the venthole with the movement of the piston rod；
The solenoid valve is connected to the venthole of the cylinder body；
The nozzle valve block has pitch entrance, connector and spout, and the connector is conllinear with the spout, and the pitch enters
Heated bitumen storage chamber is formed between mouth, connector and spout；
The pitch entrance of the nozzle valve block is connect with heated bitumen delivery pipe, is provided with heating tube in the heated bitumen delivery pipe,
The connector is connect with the cylinder body, and bellows is provided in the heated bitumen storage chamber, and the end of the bellows is fixed
At the connector, the free end of the piston rod can be extended in the bellows, and the bellows can be connected to it is described
On spout；
The nozzle is set on the spout of the nozzle valve block.
2. venturi effect heated bitumen nozzle assembly according to claim 1, it is characterised in that: second through-hole is described in
The radial direction of piston rod opens up.
3. venturi effect heated bitumen nozzle assembly according to claim 1, it is characterised in that: the connection of the nozzle valve block
It is additionally provided with sealing ring at mouthful, the end of the bellows compresses the sealing ring.
4. venturi effect heated bitumen nozzle assembly according to claim 1-3, it is characterised in that: the solenoid valve
It is connected to by transit joint with the venthole of the cylinder body.
5. venturi effect heated bitumen nozzle assembly according to claim 1-3, it is characterised in that: the solenoid valve
The middle low-frequency electrical magnet valve for being 0.1-50Hz for frequency.
6. venturi effect heated bitumen nozzle assembly according to claim 1-3, it is characterised in that: the bellows
For polytetrafluoroethylbellows bellows.
7. a kind of synchronous spread heated bitumen paver, it is characterised in that: including venturi effect described in any one of claims 1-6
Heated bitumen nozzle assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821706431.XU CN208995877U (en) | 2018-10-19 | 2018-10-19 | A kind of venturi effect heated bitumen nozzle assembly and synchronous spread heated bitumen paver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821706431.XU CN208995877U (en) | 2018-10-19 | 2018-10-19 | A kind of venturi effect heated bitumen nozzle assembly and synchronous spread heated bitumen paver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208995877U true CN208995877U (en) | 2019-06-18 |
Family
ID=66804958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821706431.XU Withdrawn - After Issue CN208995877U (en) | 2018-10-19 | 2018-10-19 | A kind of venturi effect heated bitumen nozzle assembly and synchronous spread heated bitumen paver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208995877U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109235200A (en) * | 2018-10-19 | 2019-01-18 | 广东华起建设工程有限公司 | A kind of venturi effect heated bitumen nozzle assembly and synchronous spread heated bitumen paver |
-
2018
- 2018-10-19 CN CN201821706431.XU patent/CN208995877U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109235200A (en) * | 2018-10-19 | 2019-01-18 | 广东华起建设工程有限公司 | A kind of venturi effect heated bitumen nozzle assembly and synchronous spread heated bitumen paver |
| CN109235200B (en) * | 2018-10-19 | 2024-04-02 | 广东华起建设工程有限公司 | Venturi effect hot asphalt nozzle assembly and synchronous spraying hot asphalt paver |
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