CN111485522A - Gas-liquid two-phase washing suction nozzle and sanitation vehicle - Google Patents
Gas-liquid two-phase washing suction nozzle and sanitation vehicle Download PDFInfo
- Publication number
- CN111485522A CN111485522A CN201910074757.8A CN201910074757A CN111485522A CN 111485522 A CN111485522 A CN 111485522A CN 201910074757 A CN201910074757 A CN 201910074757A CN 111485522 A CN111485522 A CN 111485522A
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- Prior art keywords
- air inlet
- inlet duct
- suction nozzle
- suction
- nozzle
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/10—Hydraulically loosening or dislodging undesirable matter; Raking or scraping apparatus ; Removing liquids or semi-liquids e.g., absorbing water, sliding-off mud
- E01H1/101—Hydraulic loosening or dislodging, combined or not with mechanical loosening or dislodging, e.g. road washing machines with brushes or wipers
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
- E01H1/0809—Loosening or dislodging by blowing ; Drying by means of gas streams
- E01H1/0818—Loosening or dislodging by blowing ; Drying by means of gas streams in apparatus with mechanical loosening or feeding instruments, e.g. brushes, scrapers
Abstract
The invention discloses a gas-liquid two-phase washing suction nozzle and an environmental sanitation vehicle, which comprise a suction nozzle body, wherein a suction pipe and a high-pressure spray gun are welded on the upper surface of the suction nozzle body, high-pressure spray nozzles which spray forwards are arranged on the lower side surface of the high-pressure spray gun at intervals along the axial direction of the high-pressure spray gun, an air inlet duct is arranged between the suction pipe and the high-pressure spray gun, an air inlet pipe is welded at the upper end of the air inlet duct, and the lower end. A vertical wear-resistant block is arranged between the suction pipe and the air inlet duct, the top end of the wear-resistant block is connected to the suction nozzle body, a gap is reserved between the bottom end of the wear-resistant block and the ground, and the rear edge of the wear-resistant block is connected with the front bottom end of the air inlet duct. The extending end of the air inlet duct is flat and inclined towards the front, the section of the extending end of the air inlet duct is gradually reduced along the outlet direction, and the width of the extending end of the air inlet duct is consistent with the suction width of the suction nozzle. Compared with the prior art, the invention washes the garbage through the high-speed air curtain and the water curtain, can reduce the water consumption, and improves the cleaning rate and the operation stability.
Description
Technical Field
The invention belongs to a suction nozzle structure for a sanitation vehicle, and particularly relates to a gas-liquid two-phase washing suction nozzle and the sanitation vehicle, which are applied to sanitation vehicles or equipment for road cleaning.
Background
With the rapid development of urban and rural construction, the range of urban roads, suburban roads and rural roads is continuously expanded, and along with the requirement of people on environmental cleanliness is higher and higher, the road cleaning pressure and workload are correspondingly increased. In order to realize efficient and rapid cleaning work and to alleviate the human cost input, the demands of sanitation vehicles and equipment for road cleaning are rapidly increasing. Various sanitation sweeper products with various functions and stable performance are continuously released in the industry according to market and customer requirements, so that how to improve the operation effect of the sanitation sweeper and develop a new operation mode become the research focus of the industry.
At present, a high-pressure cleaning device is installed at the rear part of a suction nozzle of a traditional washing and sweeping vehicle on the market, and during operation, high-pressure water is used for effectively flushing garbage adhered to the ground and in a ground gap and flushing the garbage into a cavity of the suction nozzle to be sucked away. However, the following problems also exist in this washing and sweeping operation mode: 1) a large amount of water is consumed, the water-saving type garbage suction nozzle is not suitable for dry and water-deficient cities in the north, and the water after washing the ground is sucked into the suction nozzle as garbage, so that the suction burden is caused; 2) in order to fill more fresh water, the volume of the waste bin is affected; 3) after operation, more residual water on the ground is left, the water cannot be used in winter, and the ground is frozen; 4) when the high-pressure nozzle is blocked, the washing and sweeping operation effect is obviously reduced.
Disclosure of Invention
In order to solve the problems, the invention provides a gas-liquid two-phase washing suction nozzle and a sanitation vehicle, which can reduce water consumption and improve the cleaning rate and the operation stability.
The object of the invention is achieved in the following way:
the utility model provides a two-phase suction nozzle that washes of gas-liquid, includes the suction nozzle body, and the upper surface welding of suction nozzle body has suction tube and high-pressure spray gun, and the high-pressure spray nozzle that sprays forward is installed along its axial interval to the high-pressure spray gun downside, be provided with the wind channel that admits air between suction tube and the high-pressure spray gun, the upper end welding in wind channel that admits air has the air-supply line, and the lower extreme passes the suction nozzle body and.
A vertical wear-resistant block is arranged between the suction pipe and the air inlet duct, the top end of the wear-resistant block is connected to the suction nozzle body, a gap is reserved between the bottom end of the wear-resistant block and the ground, and the rear edge of the wear-resistant block is connected with the front bottom end of the air inlet duct.
The extending end of the air inlet duct is flat and inclined towards the front, the section of the extending end of the air inlet duct is gradually reduced along the outlet direction, and the width of the extending end of the air inlet duct is consistent with the suction width of the suction nozzle.
And guide plates are arranged at intervals in the extending end of the air inlet duct along the width direction of the air inlet duct.
Air curtain flow velocity V of outlet injection of air inlet duct1Greater than the velocity V of the water curtain sprayed by the high-pressure nozzle2。
The included angle α between the rear side of the air inlet duct and the ground is larger than the included angle β between the water curtain sprayed by the high-pressure nozzle and the ground.
The lower end of the rear part of the wear-resistant block is in a forward inclined slope shape.
The fan-shaped water curtains sprayed by the high-pressure nozzles arranged at intervals on the high-pressure spray rod are mutually overlapped to form a continuous water curtain, and the water curtain is close to the outlet of the air inlet duct.
The invention also provides an environmental sanitation vehicle which comprises the gas-liquid two-phase washing suction nozzle.
The control valves of the air inlet duct and the high-pressure nozzle are electrically connected with the operation mode gears of the sanitation vehicle, and the start-stop switch of the air inlet duct and the start-stop switch of the high-pressure nozzle are separately arranged.
Compared with the prior art, the invention has the following advantages:
1. the air inlet duct is arranged in front of the high-pressure nozzle, so that the gas phase is increased, the gas phase and the liquid phase are used for washing the ground together, and the cleaning rate is improved; because the gas phase cleaning is added, the water consumption in unit time can be obviously reduced, correspondingly, under the condition of the same volume of the clean water tank, the operation time can be obviously prolonged, and the water adding times are reduced; the volume of the garbage can be increased by reducing the volume of the clear water tank, the operation time is prolonged, and the unloading times are reduced;
2. the two defense lines consisting of the high-speed air curtain sprayed from the outlet of the air inlet duct and the high-speed water curtain sprayed from the high-pressure nozzle reduce the possibility of garbage leakage;
2. in northern water shortage areas and the like, the use of water resources can be reduced, particularly in winter, a waterless operation mode can be used, and efficient operation can be realized only by a high-speed air curtain sprayed from an outlet of an air inlet duct;
3. due to the reduction of water consumption, the pressure of the suction pipe for sucking the ground sewage is reduced, so that the suction efficiency of the solid garbage can be improved; in addition, the residual water on the ground after operation is reduced, the ground is easier to dry, and the influence on passing vehicles and pedestrians caused by the slippery ground is smaller;
4. compared with the traditional washing and sweeping vehicle which is propelled forwards in a manner of being attached to the ground after being struck by high-pressure water, the high-speed air curtain and water curtain washing and sweeping vehicle disclosed by the invention greatly improves the gas kinetic energy in the whole channel, forms a stronger and more complete garbage pushing effect, effectively reduces the possibility of blockage of a high-pressure nozzle and ensures the normal operation of washing and sweeping.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a top view of fig. 2.
Fig. 4 is a view from a-a of fig. 3.
Fig. 5 is an enlarged view of a portion I in fig. 4.
Wherein, 1 is the suction nozzle body, 2 is the air inlet duct, 3 is the air-supply line, 4 is the high-pressure spray gun, 5 is the high-pressure nozzle, 6 is the water curtain, 7 is the suction tube, 8 is wear-resisting piece, 9 is the guide plate, 10 is preceding rubber, 11 is the ground, 12 is the wheel.
Detailed Description
The traveling direction of the sanitation vehicle is taken as the front direction, and the traveling direction of the sanitation vehicle is taken as the arrow direction in fig. 1 when the traveling direction of the sanitation vehicle is taken as the back direction.
As shown in fig. 1-5, a gas-liquid two-phase washing suction nozzle comprises a suction nozzle body 1, a suction pipe 7 and a high-pressure spray gun 4 are welded on the upper surface of the suction nozzle body 1, high-pressure spray nozzles 5 which spray forward are installed on the lower side surface of the high-pressure spray gun 4 along the axial direction at intervals, an air inlet duct 2 is arranged between the suction pipe 7 and the high-pressure spray gun 4, an air inlet pipe 3 is welded on the upper end of the air inlet duct 2, and the lower end of the air inlet duct penetrates through the suction nozzle body.
In order to prevent the large garbage from blocking the air inlet duct 2 and the high-pressure nozzle 5 and enable the high-pressure air curtain and the high-pressure water curtain to form a flushing channel with two-phase coupling effect, a vertical wear-resistant block 8 is arranged between the suction pipe 7 and the air inlet duct 2, the top end of the wear-resistant block 8 is connected to the suction nozzle body 1, a gap is reserved between the bottom end and the ground 11, and the rear edge of the wear-resistant block 8 is connected with the front bottom end of the air inlet duct 2.
Preferably, the extending end of the air inlet duct 2 is flat and inclined towards the front, and the cross section of the extending end gradually decreases along the outlet direction, where the cross section is the cross section shown in fig. 5, and the width of the extending end is consistent with the suction width of the suction nozzle, that is, the width of the air inlet duct 2 is wide in the transverse direction, so as to substantially cover the suction width of the suction nozzle. The air inlet duct 2 is a special-shaped duct with a variable cross section.
The nozzle body 1 is a substantially U-shaped welded body having a downward opening as a whole. The cavity formed by the suction nozzle body 1 and the ground 11 is communicated with the inner cavity of the suction pipe 7, and the suction nozzle is the prior art. An air inlet pipe 3 is welded at the upper end of the air inlet duct 2, and the air inlet pipe 3 is used for connecting an air inlet hose to induce air from an air outlet of the fan. The front rubber sheet 10 inclined backwards is installed at the front end of the suction nozzle body 1, so that garbage can conveniently enter a suction nozzle cavity, and meanwhile, the suction pipe 7 is favorably maintained to generate negative pressure to the suction nozzle cavity. The suction nozzle body 1, the suction pipe 7, the wear-resisting block 8 and the front rubber 10 form the main part of a suction nozzle cavity for sucking garbage, and the high-pressure spray rod 4 and the high-pressure nozzle 5 form a high-pressure cleaning device of the suction nozzle.
In order to facilitate the gas drainage and improve the uniformity of the flow of the sprayed gas, the guide plates 9 are arranged at intervals in the extending end of the air inlet duct 2 along the width direction of the air inlet duct, so that a high-speed air curtain introduced from a fan can be kept blowing towards the vehicle running direction after the variable cross section of the air inlet duct 2, and the arrangement gap of the air curtain is not limited. Due to the influence of the variable cross section of the air inlet duct 2, the air curtain passing through the air inlet duct 2 has non-uniformity in the transverse width, and the flow or the flow velocity of the air curtain is kept to be larger behind the region where the garbage is concentrated in the cavity of the suction nozzle, so that the concentrated garbage can be smoothly sucked into the garbage can by the suction pipe 7; for example, the air curtain flow or velocity can be maintained high behind the region of debris concentration by positioning the air intake duct 2 adjacent the suction duct 7, as in the embodiment of fig. 1-5, since the wind velocity is higher in the region of lateral width closer to the air intake duct 2, and the debris is most concentrated below the suction duct 7, and positioning the air intake duct 2 adjacent the suction duct 7.
The air curtain flow velocity V ejected from the outlet of the air inlet duct 2 is such that the waste is smoothly moved in the direction of the suction pipe 7, i.e. from the rear to the front1Greater than the water curtain velocity V ejected by the high pressure nozzle 52And can avoid the high-pressure nozzle 5 from being blocked by too much garbage and accumulated garbage.
The included angle α between the trailing flank of air inlet duct 2 and ground 11 is greater than the included angle β between the water curtain that high pressure nozzle 5 jetted and ground 11, is favorable to the gathering coupling of air curtain and water curtain more, avoids the splash of water four times, influences the washing and sweeping effect.
In order to facilitate the movement of high-speed airflow or garbage to the channel at the bottom of the wear-resistant block 8, the lower end of the rear part of the wear-resistant block 8 is in the shape of a forward inclined slope, as shown in fig. 5.
In order to avoid the omission of garbage from the water curtain gap, fan-shaped water curtains sprayed by high-pressure nozzles 5 arranged at intervals on the high-pressure spray rod 4 are mutually overlapped to form a continuous water curtain, and the water curtain is close to the outlet of the air inlet duct 2.
The invention also provides a sanitation vehicle which comprises the gas-liquid two-phase washing suction nozzle and wheels 12 arranged on two sides of the rear part of the suction nozzle body 1.
The control valves of the air inlet duct 2 and the high-pressure nozzle 5 are electrically connected with an operation mode gear of the sanitation truck, and the flow of the air inlet duct 2 and the flow of the high-pressure nozzle 5 are synchronously controlled through the operation mode gear, namely the flow of the air curtain and the flow of the water curtain are gradually increased along with the increase of the operation gear; the start-stop switch of the air inlet duct 2 and the start-stop switch of the high-pressure nozzle 5 are separately arranged, so that the high-pressure water sprayed by the high-pressure nozzle 5 can be independently controlled to start and stop, and the waterless cleaning operation can be realized.
When the garbage suction device works, garbage in front of the ground surface suction nozzle enters the cavity of the suction nozzle through the front rubber sheet 10 and is sucked into the garbage can under the action of negative pressure in the suction pipe 7. While some garbage with strong adhesion and soil accumulated in the ground gap need to be washed into the cavity of the suction nozzle for being sucked. The suction nozzle of the invention has two washing processes: the high-speed air curtain that earlier is sprayed by 2 exports in air inlet duct washes earth's surface adhesion rubbish, pushes into the suction nozzle cavity through the space of wear-resisting piece 8 bottom with the rubbish that the surface area is great earlier with easily dashing, and the high pressure water that is sprayed by high pressure nozzle 5 carries out degree of depth secondary to this regional adhesion and the earth of hiding in the gap deeply and washes, effectively improves the washing and sweeping effect.
In the above-mentioned washing process, according to the siphon effect, the air in the outlet area of the air inlet duct 2 will be continuously accelerated and converged under the action of atmospheric pressure, and enter the bottom channel of the wear-resistant block 8 together with the sprayed high-speed air curtain due to the air curtain flow velocity V1>Water curtain flow velocity V2The device can ensure that the high-pressure water can smoothly enter the cavity of the suction nozzle from the bottom channel of the wear-resisting block 8 after washing the ground.
On the other hand, when the amount of ground garbage is large or the speed of the washing and sweeping vehicle is high, the suction force and the high-pressure flushing capacity are limited easilyPart of the generated garbage leaks from the gap at the bottom of the wear-resisting block 8 at the bottom of the suction nozzle, and the operation effect is influenced. The invention further sets the air curtain flow velocity V1>Water curtain flow velocity V2And the included angle α between the rear side of the air inlet duct 2 and the ground 11 is larger than the included angle β between the water curtain sprayed by the high-pressure nozzle 5 and the ground 11, so that a flushing channel with the coupling action of a high-speed air curtain and a water curtain is formed at the bottom of the wear-resistant block 8, a stronger and more complete garbage pushing effect is formed, and two 'prevention lines' formed by the high-speed air curtain sprayed by the outlet of the air inlet duct 2 and the high-speed water curtain sprayed by the high-pressure nozzle 5 are arranged behind the flushing channel with the coupling action of two phases, so that the possibility of garbage leakage is further reduced.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the overall concept of the invention, and these should be considered as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicability of the patent.
Claims (10)
1. The utility model provides a two-phase suction nozzle that washes of gas-liquid, includes suction nozzle body (1), its characterized in that: the upper surface welding of suction nozzle body (1) has suction tube (7) and high-pressure spray gun (4), and high-pressure spray gun (4) downside is installed forward high pressure nozzle (5) of spraying along its axial interval, be provided with air inlet duct (2) between suction tube (7) and high-pressure spray gun (4), the upper end welding of air inlet duct (2) has air-supply line (3), and the lower extreme passes suction nozzle body (1) and stretches into in the cavity of suction nozzle body (1).
2. The gas-liquid two-phase rinse nozzle of claim 1, wherein: a vertical wear-resistant block (8) is arranged between the suction pipe (7) and the air inlet duct (2), the top end of the wear-resistant block (8) is connected to the suction nozzle body (1), a gap is reserved between the bottom end and the ground (11), and the rear edge of the wear-resistant block (8) is connected with the front bottom end of the air inlet duct (2).
3. The gas-liquid two-phase flushing nozzle of claim 1 or 2, wherein: the extending end of the air inlet duct (2) is flat and inclined towards the front, the section of the extending end of the air inlet duct is gradually reduced along the outlet direction, and the width of the extending end of the air inlet duct is consistent with the suction width of the suction nozzle.
4. The gas-liquid two-phase rinse nozzle of claim 3, wherein: and guide plates (9) are arranged at intervals in the extending end of the air inlet duct (2) along the width direction.
5. The gas-liquid two-phase rinse nozzle of claim 1, wherein: the air curtain flow velocity V of the outlet injection of the air inlet duct (2)1The flow velocity V of the water curtain sprayed by the high-pressure nozzle (5) is larger than that of the water curtain2。
6. The gas-liquid two-phase washing suction nozzle as claimed in claim 1 or 5, wherein the included angle α between the rear side surface of the air inlet duct (2) and the ground (11) is larger than the included angle β between the water curtain sprayed by the high-pressure nozzle (5) and the ground (11).
7. The gas-liquid two-phase flushing nozzle of claim 1 or 2, wherein: the lower end of the rear part of the wear-resisting block (8) is in a slope shape inclining forwards.
8. The gas-liquid two-phase rinse nozzle of claim 1, wherein: the fan-shaped water curtains sprayed by the high-pressure nozzles (5) arranged at intervals on the high-pressure spray rod (4) are mutually overlapped to form a continuous water curtain, and the water curtain is close to the outlet of the air inlet duct (2).
9. The utility model provides a sanitation car which characterized in that: comprising a gas-liquid two-phase flushing nozzle according to any of claims 1-8.
10. The sanitation vehicle of claim 9, wherein: the control valves of the air inlet duct (2) and the high-pressure nozzle (5) are electrically connected with the operation mode gear of the sanitation vehicle, and the start-stop switch of the air inlet duct (2) and the start-stop switch of the high-pressure nozzle (5) are separately arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910074757.8A CN111485522B (en) | 2019-01-25 | 2019-01-25 | Gas-liquid two-phase washing suction nozzle and sanitation vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910074757.8A CN111485522B (en) | 2019-01-25 | 2019-01-25 | Gas-liquid two-phase washing suction nozzle and sanitation vehicle |
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| Publication Number | Publication Date |
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| CN111485522A true CN111485522A (en) | 2020-08-04 |
| CN111485522B CN111485522B (en) | 2022-06-07 |
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| CN201910074757.8A Active CN111485522B (en) | 2019-01-25 | 2019-01-25 | Gas-liquid two-phase washing suction nozzle and sanitation vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112695685A (en) * | 2020-12-25 | 2021-04-23 | 刘宏伟 | Gardens artificial hillock cleaning device |
| CN114264190A (en) * | 2021-12-23 | 2022-04-01 | 广东派沃新能源科技有限公司 | Method and device for cleaning fin type heat exchanger |
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| DE2457708A1 (en) * | 1974-12-06 | 1976-06-10 | Dynaclean Ltd | DEVICE FOR CLEANING SURFACES |
| JPH0959953A (en) * | 1995-08-17 | 1997-03-04 | Sakai Heavy Ind Ltd | Elimination device of clogged article on pavement |
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| JP4069410B2 (en) * | 2002-04-25 | 2008-04-02 | 豊和工業株式会社 | Cleaning device for maintaining drainage pavement functions |
| CN202519611U (en) * | 2012-03-30 | 2012-11-07 | 厦门厦工重工有限公司 | Washing and sweeping vehicle sucker with dissymmetric recovery cavity |
| CN108677843A (en) * | 2018-06-01 | 2018-10-19 | 中国重汽集团湖北华威专用汽车有限公司 | A kind of circulated air of sweeper helps pressure-vaccum disk |
| CN109235343A (en) * | 2018-09-21 | 2019-01-18 | 长沙中联重科环境产业有限公司 | Nozzle structure and cleaning equipment |
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2019
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH496856A (en) * | 1968-11-06 | 1970-09-30 | Streicher Fa M | Street sweeper |
| DE2457708A1 (en) * | 1974-12-06 | 1976-06-10 | Dynaclean Ltd | DEVICE FOR CLEANING SURFACES |
| JPH0959953A (en) * | 1995-08-17 | 1997-03-04 | Sakai Heavy Ind Ltd | Elimination device of clogged article on pavement |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112695685A (en) * | 2020-12-25 | 2021-04-23 | 刘宏伟 | Gardens artificial hillock cleaning device |
| CN112695685B (en) * | 2020-12-25 | 2022-11-15 | 厦门百能景观建设有限公司 | Gardens artificial hillock cleaning device |
| CN114264190A (en) * | 2021-12-23 | 2022-04-01 | 广东派沃新能源科技有限公司 | Method and device for cleaning fin type heat exchanger |
| CN114264190B (en) * | 2021-12-23 | 2023-12-19 | 广东派沃新能源科技有限公司 | Fin type heat exchanger cleaning method and device |
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| CN111485522B (en) | 2022-06-07 |
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