Summary of the invention
Technical problem to be solved by this invention is to overcome the shortcoming of above-mentioned pitch sprinkling car, and a kind of reasonable in design, automaticity is high, flushing is thorough, speed of application is fast, cleaning effect is good drainage asphalt pavement function recovery vehicle is provided.
Solving the problems of the technologies described above the technical scheme that is adopted is: establish mounting seat on automobile chassis, front end is provided with motor on the mounting seat, hydraulic pump, electromagnetic clutch, electric control box, on the output shaft of motor electromagnetic clutch is set, one output shaft and the hydraulic pump of electromagnetic clutch link, be provided with hydraulic control box on the mounting seat behind the motor, induced draft fan, the engine radiating water tank, hydraulic pump links by pipeline and hydraulic control box, induced draft fan links by belt gear and another root output shaft of electromagnetic clutch, the exhaust duct of induced draft fan is provided with the induced draft fan noise damper, the engine radiating water tank links by pipeline and motor, be provided with the clear water jar on the mounting seat behind the induced draft fan, the rear end is provided with the sewage treatment pot overturning oil cylinder on the mounting seat, the sewage treatment pot that links by pipeline and induced draft fan, the ejector that links in setting and the sewage treatment pot on the sewage treatment pot right flank, the right side of mounting seat is provided with the clarified water pump that links by pipeline and clear water jar and sewage treatment pot, the foul water pump that links by pipeline and sewage treatment pot and ejector, the mounting seat rear end is arranged with sucker, sucker links by pipeline and sewage treatment pot, link with the vacuum end of the ejector of flowing through, preceding high-pressure hydraulic pump and back high-pressure hydraulic pump all link and link with sucker by pipeline and clear water jar.
Sucker of the present invention is: be installed in a hitch rear end on the horizontally-guided bar in the setting of sucker casing front end the suspension arm that is installed on another root horizontally-guided bar is set, on 2 vertical guide bars, the lower end is arranged on the hitch, the upper end that sucker moves up and down oil cylinder is arranged on the mounting seat, the lower end connects with hitch, the upper end of suspension arm is arranged on upper end and the guide rail that mounting seat connects, hitch is provided with hydraulic motor, hydraulic motor is installed in sucker casing front side left end by a sprocket wheel and an end, the front haulage chain that the other end is installed in sucker casing front side right-hand member links, one end of rear haulage chain is installed in a side on the suspension arm, the other end is walked around the commutation sprocket wheel and is installed in opposite side on the suspension arm, the sucker casing is provided with the vacuum attraction pipe, vacuum interconnected pipe, with the negative pressure suction tube that the negative pressure suction nozzle with battery unit links, the sucker bottom half is provided with the walking rubber roll, the sparge pipe of nozzle is housed, the high vacuum suction nozzle that links with the vacuum attraction pipe.
3 sparge pipes that sparge pipe of the present invention has left and right directions to arrange, two sparge pipes in front and back are provided with the V-arrangement nozzle, and middle sparge pipe is provided with the air pocket nozzle.
Angle between the center line of the V-arrangement nozzle on the sparge pipe in front of the present invention and the forward of horizontal plane car direction of advance is 25 °~45 °, the center line of the V-arrangement nozzle on the next sparge pipe and horizontal plane car direction of advance oppositely between angle be 25 °~45 °, the center line of air pocket nozzle is vertical with horizontal plane on the middle sparge pipe.
Negative pressure suction nozzle with battery unit of the present invention has 2 the mutual UNICOMs or the negative pressure suction nozzle with battery unit of UNICOM not at least.
Negative pressure suction nozzle with battery unit of the present invention is: an end of cross over pipe connects with suction nozzle, the other end connects with connecting flange, angle α before and after the suction nozzle between the two sides is 5 °~30 °, angle β between leading flank and the horizontal plane is 30 °~60 °, leading flank is two isosceles trapezoids that equate with trailing flank, and the last bottom side length of trailing flank is 1: 2~6 with the ratio of the length of side of going to the bottom.
Sewage treatment pot of the present invention is: the upper end, front side is provided with the exhaust column that is connected with the induced draft fan connecting tube outside tank body, the rear end is provided with the cover that the bottom is connected with sewage blow-down valve, tank body each side is provided with 1 hydraulic jack of uncapping that connects with cover outward, the outer left side of tank body be provided with tank body in the filler pipe that links, behind the tank body left and right sides be provided with tank body in the sucker connecting tube of UNICOM, the outer right side of tank body be provided with tank body in the ejector water inlet pipe of UNICOM, ejector circulation drinking-water pipe, drinking-water pipe, content gauge, the tank base left and right sides is provided with the tank body bearing, two tank body bearings of rear side are provided with rotary support, the coarse strainer that inside is equipped with smart filter screen is set in the exhaust column, be provided with deflector before the connecting tube of tank body inner top sucker, tank base is disposed with the first road filter screen from back to front, the second road filter screen, the 3rd road filter screen, the 4th road filter screen.
Coarse strainer of the present invention is that the aperture is the filter screen of 3mm, and smart filter screen is 42 purpose filter screens, and the first road filter screen is that the worry aperture is the filter screen of 3mm, and the second road filter screen is that the worry aperture is the filter screen of 1mm, and the 3rd road filter screen is 30 purpose filter screens, and the 4th road filter screen is 42 purpose filter screens.
Sewage after the present invention adopts negative pressure that induced draft fan and ejector produce with the high pressure water washing drainage asphalt pavement is extracted in the sewage treatment pot of drainage asphalt pavement function recovery vehicle, be provided with four road filter screens in the sewage treatment pot, the sewage that sucks back the drainage asphalt pavement that washed is filtered, and with sewage and silt particle discharge, flushing speed is fast, thorough, efficiency of construction is high, and the drainage asphalt pavement that washed has recovered the function on this road surface.The present invention can be used for cleaning drainage asphalt pavement.
The specific embodiment
The present invention is described in more detail below in conjunction with drawings and Examples, but the invention is not restricted to these embodiment.
Embodiment 1
In Fig. 1,2, the drainage asphalt pavement function recovery vehicle of present embodiment is made of motor 1, induced draft fan noise damper 2, hydraulic control box 3, induced draft fan 4, clear water jar 5, sewage treatment pot 6, sewage treatment pot overturning oil cylinder 7, sucker 8, back high-pressure hydraulic pump 9, preceding high-pressure hydraulic pump 10, mounting seat 11, automobile chassis 12, electric control box 13, engine radiating water tank 14, clarified water pump 15, foul water pump 16, ejector 17, belt gear 18, electromagnetic clutch 19, reduction box 20, hydraulic pump 21 connections.
On automobile chassis 12 with the screw threads for fastening connector mounting seat 11 that has been fixedly connected, front end is with the screw threads for fastening connector motor 1 that has been fixedly connected on the mounting seat 11, electric control box 13, induced draft fan 4, motor 1 provides power during for construction operation of the present invention, the output shaft of motor 1 connects with reduction box 20 with connector, two output shafts are arranged on the reduction box 20, wherein an output shaft is by electromagnetic clutch 19, belt gear 18 connects with the power shaft of induced draft fan 4, another output shaft of reduction box 20 links with the driving shaft of connector and hydraulic pump 21, hydraulic pump 21 is for the invention provides pressure source, in the electric control box 13 electric elements are installed, electric switch, circuit, electric control box 13 are used for the duty of electrical component of the present invention is controlled.Motor 1 back is with screw threads for fastening connector be fixedly connected hydraulic control box 3, engine radiating water tank 14 on the mounting seat 11, by-pass valve control, gauge tap, hydraulic oil container are installed in the hydraulic control box 3, hydraulic pump 21 links by pipeline and hydraulic control box 3, induced draft fan noise damper 2 is installed on the exhaust duct of induced draft fan 4, engine radiating water tank 14 links by pipeline and motor 1, is motor 1 heat radiation.Induced draft fan 4 back is equipped with clean water with the screw threads for fastening connector clear water jar 5 that has been fixedly connected in the clear water jar 5 on the mounting seat 11, is used to clean drainage asphalt pavement.The rear end is with screw threads for fastening connector be fixedly connected sewage treatment pot 6, sewage treatment pot overturning oil cylinder 7 on the mounting seat 11, the upper end of sewage treatment pot 6 links by pipeline and induced draft fan 4, sewage treatment pot 6 is used to adorn the sewage behind the cleaning drainage asphalt pavement and filters, sewage treatment pot overturning oil cylinder 7 is used for sewage treatment pot 6 front ends are lifted high, pours out dirts such as sewage in the sewage treatment pot 6 and silt particle.On the right flank of sewage treatment pot 6 with the screw threads for fastening connector ejector 17 that has been fixedly connected.The right side of mounting seat 11 is with screw threads for fastening connector be fixedly connected clarified water pump 15 and foul water pump 16, clarified water pump 15 links by pipeline and clear water jar 5 and sewage treatment pot 6, clarified water pump 15 is input to clean water in the clear water jar 5, sewage clean water after filtering in the sewage treatment pot 6 is input in the clear water jar 5 by clarified water pump 15 and reuses, the inlet of foul water pump 16 is by linking in pipeline and the sewage treatment pot 6, outlet links by the inlet of pipeline and ejector 17, the outlet of ejector 17 is by linking in pipeline and the sewage treatment pot 6, foul water pump 16 is extracted after filtering recycle-water in the sewage treatment pot 6 out, the ejector 17 of flowing through flow back in the sewage treatment pot 6, in the vacuum end generation vacuum of ejector 17.Mounting seat 11 rear ends are connected with sucker 8 with the screw threads for fastening connector down, sucker 8 is by linking in pipeline and the sewage treatment pot 6, linking by the vacuum end of pipeline with the ejector 17 of flowing through, and the sewage that sucker 8 is used for washing away drainage asphalt pavement sucks back in the sewage treatment pot 6.
High-pressure hydraulic pump 10, back high-pressure hydraulic pump 9 before the left side central portion of mounting seat 11 has been fixedly connected with the screw threads for fastening connector, preceding high-pressure hydraulic pump 10 and back high-pressure hydraulic pump 9 link, link by pipeline and sucker 8 by pipeline and clear water jar 5, water under high pressure is gone out the dirt in the drainage asphalt pavement space from sucker 8 ejections.
In Fig. 3,4,5, the sucker 8 of present embodiment moves up and down oil cylinder 8-3, hydraulic motor 8-4, sparge pipe 8-5, nozzle 8-6, commutation sprocket wheel 8-7, sucker casing 8-8, walking rubber roll 8-9, front haulage chain 8-10, rear haulage chain 8-11, guide rail 8-12, suspension arm 8-13, negative pressure suction nozzle with battery unit 8-14, high vacuum suction nozzle 8-15, negative pressure suction tube 8-16, vacuum attraction pipe 8-17, vacuum interconnected pipe 8-18, horizontally-guided bar 8-19 by hitch 8-1, vertical guide bar 8-2, sucker and connects and constitute.
In sucker casing 8-8 upper surface front-end and back-end with the screw threads for fastening connector 1 horizontally-guided bar 8-19 that respectively has been fixedly connected, the horizontally-guided bar 8-19 of front end goes up hitch 8-1 is installed, on the horizontally-guided bar 8-19 of rear end suspension arm 8-13 is installed, hitch 8-1 and suspension arm 8-13 can be on horizontally-guided bar 8-19 move left and right.On 2 vertical guide bar 8-2, the lower end is installed on the hitch 8-1, hitch 8-1 upper end connects with mounting seat 11, the upper end of suspension arm 8-13 is installed on the guide rail 8-12, suspension arm 8-13 can move up and down on guide rail 8-12, the upper end of guide rail 8-12 connects with the rear end of mounting seat 11, the upper end that sucker moves up and down oil cylinder 8-3 connects with mounting seat 11 with coupling spindle, the lower end that sucker moves up and down oil cylinder 8-3 connects with hitch 8-1 with the screw threads for fastening connector, sucker moves up and down oil cylinder 8-3 and links by conduit and hydraulic control box 3, sucker moves up and down oil cylinder 8-3 and moves up and down, and drags sucker casing 8-8 and moves up and down.Hitch 8-1 goes up with the screw threads for fastening connector hydraulic motor 8-4 that has been fixedly connected, hydraulic motor 8-4 provides power for sucker casing 8-8 move left and right, on the output shaft of hydraulic motor 8-4 sprocket wheel is installed, the last side of suspension arm 8-13 that the end of rear haulage chain 8-11 is installed, the other end is walked around commutation sprocket wheel 8-7 and is installed in upward opposite side of suspension arm 8-13, rear haulage chain 8-11 plays draw, make that the front-end and back-end of sucker casing 8-8 are stressed evenly, sucker casing 8-8 keeps level, the end of front haulage chain 8-10 and sucker casing 8-8 front side left end link, the other end is walked around commutation sprocket wheel 8-7 and sucker casing 8-8 front side right-hand member and is linked, and the clockwise or counter-rotating of hydraulic motor 8-4 is by chain drive driving sucker casing 8-8 move left and right before the sprocket wheel.
Welding is connected with 2 negative pressure suction tube 8-16,2 vacuum attraction pipe 8-17,2 vacuum interconnected pipe 8-18 on sucker casing 8-8,2 negative pressure suction tube 8-16 link by the top of pipeline and sewage treatment pot 6,2 vacuum attraction pipe 8-17 link by the vacuum end of pipeline and ejector 17, making sucker casing 8-8 bottom vacuum attraction pipe 8-17 neighbouring is the region of no pressure, washing away in the drainage asphalt pavement space sewage flows to the region of no pressure, part of contaminated water is drawn into the negative pressure end of ejector 17, flow back in the sewage treatment pot 6.2 vacuum interconnected pipe 8-18 link by pipeline, and vacuum interconnected pipe 8-18 is used to store the gas near the region of no pressure of sucker casing 8-8 bottom vacuum attraction pipe 8-17.Welding is connected with 8 negative pressure suction nozzle with battery unit 8-14 on sucker casing 8-8, and per 4 negative pressure suction nozzle with battery unit 8-14 link with 1 negative pressure suction tube 8-16 after with pipe influx, and negative pressure suction tube 8-16 links by pipeline and sewage treatment pot 6.
3 walking rubber roll 8-9 are installed in sucker casing 8-8 bottom, walking rubber roll 8-9 is used for the present invention and is pulled operation on the road surface, sucker casing 8-8 bottom, left right is with the screw threads for fastening connector 1 high vacuum suction nozzle 8-15 that has been fixedly connected, and high vacuum suction nozzle 8-15 and vacuum attraction pipe 8-17 link.Sucker casing 8-8 bottom, left right is with the screw threads for fastening connector 3 sparge pipe 8-5 that have been fixedly connected, the two sparge pipe 8-5 in front and back go up and by thread connection V-arrangement nozzle 8-6 are installed respectively, the concrete quantity of V-arrangement nozzle 8-6 should be determined according to the width on cleaning road surface, a middle sparge pipe 8-5 goes up and by thread connection air pocket nozzle 8-6 is installed, the concrete quantity of air pocket nozzle 8-6 should be determined according to the width on cleaning road surface, V-arrangement nozzle 8-6 and air pocket nozzle 8-6 are the commodity of selling on the market, angle between the center line of V-arrangement nozzle 8-6 on the sparge pipe 8-5 in front and the forward of horizontal plane car direction of advance is 35 °, the center line of V-arrangement nozzle 8-6 on the next sparge pipe 8-5 and horizontal plane car direction of advance oppositely between angle be 35 °, the center line of air pocket nozzle 8-6 on the middle sparge pipe 8-5 is vertical with horizontal plane, water under high pressure sprays from V-arrangement nozzle 8-6 and the two interior surveys forwards, backwards of the V-arrangement nozzle 8-6 on the sparge pipe 8-5 in back on the sparge pipe 8-5 in front, air pocket nozzle 8-6 on the middle sparge pipe 8-5 sprays water under high pressure vertically downward, nozzle 8-6 on three sparge pipe 8-5 concentrates the drainage asphalt pavement that sprays to the middle part, the dust sand grains in the drainage asphalt pavement can be gone out.
In Fig. 6,7,8, present embodiment negative pressure suction nozzle with battery unit 8-14 is made of connecting flange 8-14.1, cross over pipe 8-14.2, suction nozzle 8-14.3 connection.The end of cross over pipe 8-14.2 connects with suction nozzle 8-14.3 welding, the other end connects with connecting flange 8-14.1 welding, angle α before and after the suction nozzle 8-14.3 between the two sides is 10 °, angle β between leading flank and the horizontal plane is 45 °, leading flank is two isosceles trapezoids that equate with trailing flank, the last bottom side length of trailing flank is 1: 4 with the ratio of the length of side of going to the bottom, the connecting flange 8-14.1 of 4 negative pressure suction nozzle with battery unit 8-14 in left side links with screw threads for fastening connector and a pipeline, and link by the negative pressure suction tube 8-16 in this pipeline and left side, the connecting flange 8-14.1 of 4 negative pressure suction nozzle with battery unit 8-14 on right side links with screw threads for fastening connector and a pipeline, and link by the negative pressure suction tube 8-16 on this pipeline and right side.
At Fig. 9,10, in 11, the sewage treatment pot 6 of present embodiment is by tank body 6-1, exhaust column 6-2, induced draft fan connecting tube 6-3, filler pipe 6-4, hydraulic jack 6-5 uncaps, sucker connecting tube 6-6, cover bearing 6-7, cover 6-8, sewage blow-down valve 6-9, tank body bearing 6-10, rotary support 6-11, ejector water inlet pipe 6-12, content gauge 6-13, drinking-water pipe 6-14, ejector circulation drinking-water pipe 6-15, coarse strainer 6-16, smart filter screen 6-17, deflector 6-18, the first road filter screen 6-19, the second road filter screen 6-20, the 3rd road filter screen 6-21, the 4th road filter screen 6-22 connects formation.
The welding of upper end, front side is connected with exhaust column 6-2 outside tank body 6-1, be welded with induced draft fan connecting tube 6-3 on the exhaust column 6-2, induced draft fan connecting tube 6-3 is connected with induced draft fan by pipeline, the welding of upper end, tank body 6-1 outside back is connected with cover bearing 6-7, cover bearing 6-7 goes up and is connected with cover 6-8 with coupling spindle, cover 6-8 covers the rear end at tank body 6-1, the outer left and right sides of tank body 6-1 is with the screw threads for fastening connector hydraulic jack 6-5 that uncaps that respectively has been fixedly connected 1, the end of hydraulic jack 6-5 of uncapping is fixed on outside the tank body 6-1, the other end of hydraulic jack 6-5 of uncapping connects with cover 6-8, the unlatching of cover 6-8 or close with two hydraulic jack 6-5 that uncap that are installed in the tank body 6-1 outside and realize, open cover 6-8, sediment in the tank body 6-1 can be taken out, cover 6-8 bottom is with the screw threads for fastening connector sewage blow-down valve 6-9 that has been fixedly connected, and the sewage in the tank body 6-1 can be outside sewage blow-down valve 6-9 be released to tank body 6-1.Left side welding outside tank body 6-1 is connected with 1 filler pipe 6-4, link in filler pipe 6-4 and the tank body 6-1, the welding of top, the left and right sides is connected with sucker connecting tube 6-6 behind the tank body 6-1, link in sucker connecting tube 6-6 and the tank body 6-1, sucker connecting tube 6-6 is used to install the pipeline that links with sucker, and the sewage that sucker sucks back behind the flush discharge flexible pavement enters in the tank body 6-1 from sucker connecting tube 6-6.The welding connection of the left and right sides, back, tank body 6-1 bottom is equipped with tank body bearing 6-10, two tank body bearings of rear side 6-10 goes up and is connected with rotary support 6-11 with coupling spindle, tank body 6-1 can rotate around rotary support 6-11, open cover 6-8, the front end of tank body 6-1 is lifted high, and the dirt in the tank body 6-1 can be poured out from tank body 6-1 rear end.The outer right side welding of tank body 6-1 is connected with ejector water inlet pipe 6-12, ejector circulation drinking-water pipe 6-15, drinking-water pipe 6-14, link in ejector water inlet pipe 6-12, ejector circulation drinking-water pipe 6-15, drinking-water pipe 6-14 and the tank body 6-1, ejector water inlet pipe 6-12 and ejector circulation drinking-water pipe 6-15 are used to install the pipeline that links with ejector 17, and drinking-water pipe 6-14 is used to install the pipeline that links with clarified water pump 15.The outer right side of tank body 6-1 is equipped with content gauge 6-13, and content gauge 6-13 is used to indicate the liquid level of sewage in the sewage jar 6.
In the exhaust column 6-2 on tank body 6-1 coarse strainer 6-16 is installed, smart filter screen 6-17 is installed in the coarse strainer 6-16, coarse strainer 6-16 is that the aperture is the filter screen of 3mm, smart filter screen 6-17 is 42 purpose filter screens, and coarse strainer 6-16, smart filter screen 6-17 are used for filtering out sucking back the foreign material that are mixed in air-flow behind the flush discharge flexible pavement.Welding is connected with deflector 6-18 before tank body 6-1 inner top sucker connecting tube 6-6, deflector 6-18 plays guide functions, makes the sewage that washes away behind the drainage asphalt pavement that flows back to from sucker connecting tube 6-6 flow to tank body 6-1 inner bottom part behind deflector 6-18 water conservancy diversion.Tank body 6-1 inner bottom part is equipped with the first road filter screen 6-19, the second road filter screen 6-20, the 3rd road filter screen 6-21, the 4th road filter screen 6-22 from back to front successively, the first road filter screen 6-19 is that the aperture is the filter screen of 3mm, the second road filter screen 6-20 is that the aperture is the filter screen of 1mm, the 3rd road filter screen 6-21 is 30 purpose filter screens, and the 4th road filter screen 6-22 is 42 purpose filter screens.The sewage that sucks back behind the flush discharge flexible pavement in the tank body 6-1 becomes clean water behind 4 road strainer filterings, enter into clear water jar 15 from drinking-water pipe 6-14 and recycle.
Embodiment 2
In the present embodiment, sucker casing 8-8 bottom, left right is with the screw threads for fastening connector 3 sparge pipe 8-5 that have been fixedly connected, the two sparge pipe 8-5 in front and back go up and by thread connection V-arrangement nozzle 8-6 are installed respectively, a middle sparge pipe 8-5 goes up and by thread connection air pocket nozzle 8-6 is installed, angle between the center line of V-arrangement nozzle 8-6 on the sparge pipe 8-5 in front and the forward of horizontal plane car direction of advance is 25 °, the center line of V-arrangement nozzle 8-6 on the next sparge pipe 8-5 and horizontal plane car direction of advance oppositely between angle be 25 °, the center line of the air pocket nozzle 8-6 on the middle sparge pipe 8-5 is vertical with horizontal plane.The connecting relation of other component and component is identical with embodiment 1.
Embodiment 3
In the present embodiment, sucker casing 8-8 bottom, left right is with the screw threads for fastening connector 3 sparge pipe 8-5 that have been fixedly connected, the two sparge pipe 8-5 in front and back go up and by thread connection V-arrangement nozzle 8-6 are installed respectively, a middle sparge pipe 8-5 goes up and by thread connection air pocket nozzle 8-6 is installed, angle between the center line of V-arrangement nozzle 8-6 on the sparge pipe 8-5 in front and the forward of horizontal plane car direction of advance is 45 °, the center line of V-arrangement nozzle 8-6 on the next sparge pipe 8-5 and horizontal plane car direction of advance oppositely between angle be 45 °, the center line of the air pocket nozzle 8-6 on the middle sparge pipe 8-5 is vertical with horizontal plane.The connecting relation of other component and component is identical with embodiment 1.
Embodiment 4
In above embodiment 1~3, welding is connected with 2 negative pressure suction tube 8-16,2 negative pressure suction nozzle with battery unit 8-14 on sucker casing 8-8, and 1 negative pressure suction nozzle with battery unit 8-14 and 1 negative pressure suction tube 8-16 link.The connecting relation of other component and component is identical with respective embodiments.
Embodiment 5
In above embodiment 1~3, welding is connected with 2 negative pressure suction tube 8-16,12 negative pressure suction nozzle with battery unit 8-14 on sucker casing 8-8, and per 6 negative pressure suction nozzle with battery unit 8-14 link with 1 negative pressure suction tube 8-16 after with pipe influx.The connecting relation of other component and component is identical with respective embodiments.
Embodiment 6
In above embodiment 1~5, negative pressure suction nozzle with battery unit 8-14 is: the end of cross over pipe 8-14.2 connects with suction nozzle 8-14.3, the other end connects with connecting flange 8-14.1, angle α before and after the suction nozzle 8-14.3 between the two sides is 5 °, angle β between leading flank and the horizontal plane is 30 °, leading flank is two isosceles trapezoids that equate with trailing flank, and the last base of trailing flank is 1: 2 with the ratio of bottom.The connecting relation of other component and component is identical with respective embodiments.
Embodiment 7
In above embodiment 1~5, negative pressure suction nozzle with battery unit 8-14 is: the end of cross over pipe 8-14.2 connects with suction nozzle 8-14.3, the other end connects with connecting flange 8-14.1, angle α before and after the suction nozzle 8-14.3 between the two sides is 30 °, angle β between leading flank and the horizontal plane is 60 °, leading flank is two isosceles trapezoids that equate with trailing flank, and the last base of trailing flank is 1: 6 with the ratio of bottom.The connecting relation of other component and component is identical with respective embodiments.