CN112742618B - High-pressure water jet spray gun - Google Patents
High-pressure water jet spray gun Download PDFInfo
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- CN112742618B CN112742618B CN202011473277.8A CN202011473277A CN112742618B CN 112742618 B CN112742618 B CN 112742618B CN 202011473277 A CN202011473277 A CN 202011473277A CN 112742618 B CN112742618 B CN 112742618B
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- water
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- flow channel
- pressure water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
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Abstract
The invention discloses a high-pressure water jet spray gun which comprises a high-pressure conveying pipe, wherein one end of the high-pressure conveying pipe is connected with a sand mixer, the sand mixer is provided with a sand mixing chamber communicated with the high-pressure conveying pipe, the central axis of the high-pressure conveying pipe is superposed with the central axis of the sand mixing chamber, at least two water inlets communicated with the sand mixing chamber are circumferentially arranged on the sand mixer, an included angle is formed between the central axis of each water inlet and the central axis of the sand mixing chamber, each water inlet is correspondingly connected with a high-pressure water conveying pipe, and a sand outlet of the sand mixer is provided with a spray head communicated with the sand mixing chamber. The high-pressure water jet spray gun can greatly reduce recoil and lateral thrust, increase flow and improve cleaning efficiency.
Description
Technical Field
The invention relates to the field of high-pressure water jet cleaning and water mixing sand blasting equipment, in particular to a high-pressure water jet spray gun which is used for ship cleaning prevention, road cleaning, oil stain cleaning and the like.
Background
The high-pressure water jet cleaning technology pressurizes water through a power pressurizing device, so that the water is sprayed out at a high speed, and the high-speed kinetic energy of the water is utilized and matched with an abrasive material to achieve the cleaning effect. The cleaning agent has the characteristics of high efficiency, obvious effect and the like on the surface of an object which is strong in adhesive force and extremely difficult to clean, and is incomparable with common manual cleaning. In addition, the cleaning method has no dust in the whole process and extremely low cost, and is recognized as one of the most scientific, economic and environment-friendly cleaning modes.
The existing high-pressure system has small flow, high-pressure water is directly discharged, an abrasive sand inlet is arranged on the side surface, the flow natural efficiency of the mode is low, in addition, the high-pressure water is vertical to the handheld direction, great recoil is caused, high-pressure gas brings the abrasive to enter from the single side surface, the side surface deviation is caused, and the operation is difficult for people to control. In conclusion, the prior art has the disadvantages of small flow, large recoil and unfavorable operation and efficiency improvement.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a high-pressure water jet spray gun which can reduce recoil and lateral thrust, increase flow and improve cleaning efficiency.
The purpose of the invention is realized by adopting the following technical scheme:
the utility model provides a high pressure water jet spray gun, includes high pressure feed pipe, the one end of high pressure feed pipe is connected with the sand blender, the sand blender be equipped with the mulling cavity of high pressure feed pipe intercommunication, the central axis of high pressure feed pipe with the coincidence of the central axis of mulling cavity, on the sand blender along circumference seted up at least two with the water inlet of mulling cavity intercommunication, the central axis of water inlet with the central axis of mulling cavity is formed with contained angle, each the water inlet correspondence is connected with high-pressure raceway, the sand outlet of sand blender be provided with the shower nozzle of mulling cavity intercommunication.
Furthermore, an included angle of 30-80 degrees is formed between the central axis of the water inlet and the central axis of the sand mixing chamber.
Furthermore, the water inlet is provided with threely, three the water inlet is followed sand blender circumference sets up, the central axis of water inlet with the central axis of mulling cavity is formed with 60 degrees contained angles.
Furthermore, the three water inlets are correspondingly connected with the high-pressure water delivery pipes, and the water inlet ends of the three high-pressure water delivery pipes are connected with a high-pressure water inlet pipe through a four-way joint.
Further, the spray head is provided with a rectangular spray opening.
Furthermore, the nozzle is a cylinder, a water spraying flow channel and a rectangular flow channel communicated with the water spraying flow channel are sequentially arranged in the nozzle along the water outlet direction, the longitudinal section of the bottom outlet of the water spraying flow channel is in a V shape, and the outlet of the rectangular flow channel is a rectangular nozzle.
Furthermore, the water outlet end of the high-pressure water delivery pipe is connected with a water delivery nozzle, and the water delivery nozzle is in threaded connection with the water inlet.
Further, the water delivery nozzle comprises a first injection flow channel, a second injection flow channel and a third injection flow channel which are connected in sequence, the first injection flow channel is communicated with the output end of the high-pressure water delivery pipe, the third injection flow channel is communicated with the sand mixing chamber, the first injection flow channel and the second injection flow channel are straight pipes, the diameter of the first injection flow channel is larger than that of the second injection flow channel, the longitudinal section of the third injection flow channel is horn-shaped, and the caliber of the horn-shaped third injection flow channel is gradually increased along the water outlet direction.
Furthermore, the sand mixer comprises a first hollow cylinder section connected with one end of the high-pressure delivery pipe, a second hollow cylinder section connected with the spray head and a hollow sand mixing section used for connecting the first hollow cylinder section and the second hollow cylinder section, the hollow sand mixing section is a cone frustum body of a circular ring and cone integrated structure, and the water inlet is arranged on a cone structure of the hollow sand mixing section.
Further, still include interior gland and outer gland, interior gland cover is established on the shower nozzle, outer gland cover is established on the hollow cylinder section of second and with hollow cylinder section threaded connection of second, interior gland is equipped with the shaft shoulder along its radial direction is protruding, the inside of outer gland is equipped with the annular flange, the shaft shoulder is located the inboard direction of annular flange and quilt the annular flange is spacing in outer gland.
Further, a sealing ring is arranged between the inner gland and the spray head.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, high-pressure gas is adopted to bring grinding materials into the sand mixing chamber from the high-pressure conveying pipe, high-pressure water enters the sand mixing chamber from the water inlet on the side surface of the sand mixer, and the water inlets of the high-pressure water are circumferentially arranged on the side surface of the sand mixer in an included angle, so that the lateral thrust can be balanced, the recoil is reduced to a great extent, the operation comfort of people is increased, and meanwhile, the flow can be increased by arranging a plurality of water inlets, and the cleaning efficiency is improved. The high-pressure water jet spray gun has the characteristics of simple structure, good reliability and strong economical efficiency.
Drawings
FIG. 1 is one of the schematic views of a high pressure water jet spray gun according to the present invention;
FIG. 2 is a second schematic view of a high pressure water jet spray gun according to the present invention;
FIG. 3 is a cross-sectional view of a high pressure water jet spray gun provided by the present invention;
FIG. 4 is a schematic view of a spray head of a high pressure water jet spray gun according to the present invention;
FIG. 5 is a cross-sectional view of the sprinkler head of FIG. 4;
FIG. 6 is a schematic view of a sand mixer of a high pressure water jet spray gun according to the present invention;
FIG. 7 is a cross-sectional view of a water delivery nozzle of a high pressure water jet spray gun provided by the present invention;
in the figure: 1. an inner gland; 101. a shaft shoulder; 2. a spray head; 201. a water spray runner; 202. a rectangular flow channel; 203. a rectangular spout; 3. a seal ring; 4. a sand mixer; 401. a first hollow cylindrical section; 402. a hollow sand mixing section; 403. a second hollow cylindrical section; 404. a water inlet; 405. a sand mulling chamber; 5. a water delivery nozzle; 501. a first injection flow passage; 502. a second injection flow passage; 503. a third injection flow passage; 6. a high-pressure water delivery pipe; 7. a four-way joint; 8. a high-pressure water inlet pipe; 9. a high-pressure delivery pipe; 10. an outer gland; 100. an annular flange; 11. a connecting member.
Detailed Description
The present invention is further described with reference to the accompanying drawings and the detailed description, and it should be noted that, in the case of no conflict, any combination between the embodiments or technical features described below may form a new embodiment.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," "one," "another," and the like are used to distinguish similar elements, and these terms and other similar terms are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. Corresponding reference numbers are used throughout the drawings for identical or corresponding elements (e.g., elements identified as "1 XX" and "2 XX" are structurally identical and functionally similar).
As shown in fig. 1 to 7, the high-pressure water jet spray gun provided by the invention comprises a high-pressure delivery pipe 9, one end of the high-pressure delivery pipe 9 is connected with a sand mixer 4, the sand mixer 4 is provided with a sand mixing chamber 405 communicated with the high-pressure delivery pipe 9, the central axis of the high-pressure delivery pipe 9 coincides with the central axis of the sand mixing chamber 405, at least two water inlets 404 communicated with the sand mixing chamber 405 are circumferentially arranged on the sand mixer 4, an included angle is formed between the central axis of the water inlets 404 and the central axis of the sand mixing chamber 405, each water inlet 404 is correspondingly connected with a high-pressure water delivery pipe 6, and a sand outlet of the sand mixer 4 is provided with a spray head 2 communicated with the sand mixing chamber 405.
In this embodiment, the high-pressure delivery pipe 9 is used for delivering high-pressure gas and abrasive into the sand mixer 4, the other end of the high-pressure delivery pipe 9 is connected with a high-pressure gas device for providing high-pressure gas, the high-pressure delivery pipe 6 is used for delivering high-pressure water into the sand mixer 4, and the high-pressure delivery pipe 6 is connected with a high-pressure water device for providing high-pressure water. The working process is as follows: the high-pressure gas carries the grinding materials to enter the sand mixing chamber 405 from the high-pressure delivery pipe 9, the high-pressure water enters the sand mixing chamber 405 from the high-pressure water delivery pipe 6, the high-pressure gas, the high-pressure water and the grinding materials generate turbulence in the sand mixing chamber 405, and after three phases are mixed, the grinding materials are sprayed out from the spray head 2. The high-pressure water of the existing spray gun is directly discharged from the high-pressure conveying pipe 9 of the embodiment, the abrasive inlet is arranged on the side surface of the sand mixer 4 of the embodiment, and because the pressure of the high-pressure water is higher and the pressure of the abrasive is lower, the high-pressure water is vertical to the handheld direction, so that great recoil is caused, the high-pressure gas brings the abrasive to enter from the single side surface, the side surface deviation is caused, and the control by people is difficult during operation. Compared with the existing spray gun, the high-pressure gas is adopted to directly discharge the abrasive from the high-pressure delivery pipe 9, the high-pressure water enters the sand mixing chamber 405 from the side surface, and the water inlets 404 of the high-pressure water are uniformly distributed on the side surface of the sand mixer 4 at included angles, so that the lateral thrust can be balanced, the recoil is reduced to a great extent, the operation comfort of people is increased, and meanwhile, the flow can be increased by arranging the plurality of water inlets 404, and the cleaning efficiency is improved. The high-pressure water jet spray gun has the characteristics of simple structure, good reliability and strong economical efficiency.
Preferably, the central axis of the water inlet 404 forms an included angle of 30-80 degrees with the central axis of the sand mixing chamber 405.
Preferably, the number of the water inlets 404 is three, the three water inlets 404 are circumferentially arranged along the sand mixer 4, and a 60-degree included angle is formed between the central axis of the water inlets 404 and the central axis of the sand mixing chamber 405. Experiments prove that three water inlets 404 are arranged, 60-degree included angles are formed between the central axes of the three water inlets 404 and the central axis of the sand mixing chamber 405, the recoil and the lateral thrust can be reduced to a better effect, the flow can be increased, and the cleaning efficiency is further improved. Of course, the number of the water inlets 404 can also be set to 4 or 6, and the adaptive design can be performed according to actual needs.
Specifically, the three water inlets 404 are correspondingly connected with the high-pressure water delivery pipes 6, and the water inlet ends of the three high-pressure water delivery pipes 6 are connected with a high-pressure water inlet pipe 8 through a four-way joint 7. High-pressure water enters from the high-pressure water inlet pipe 8 and is divided into three paths by the three high-pressure water pipes 6 to enter the sand mixing chamber 405, and the high-pressure water inlet pipe 8 of the embodiment is connected with high-pressure water equipment.
Preferably, the spray head 2 is provided with a rectangular spout 203. With traditional round hole spout, adopt rectangle spout 203, can provide bigger injection angle, the injection range is wider.
Specifically, the nozzle 2 is a cylinder, a water spraying channel 201 and a rectangular channel 202 communicated with the water spraying channel 201 are sequentially arranged in the nozzle 2 along a water outlet direction, a longitudinal section of an outlet at the bottom of the water spraying channel 201 is "v" shaped, referring to fig. 5, an arrow in fig. 5 represents a longitudinal direction, and an outlet of the rectangular channel 202 is the rectangular nozzle 203. Referring to fig. 4, the water spray channel 201 of the present embodiment is in a funnel shape with a large upper end and a small lower end, and by arranging the water spray channel 201, the rectangular channel 202 and the rectangular nozzle 203, the hitting power of water can be increased, the ejected water is in a fan-shaped hitting shape, a larger spray angle is further provided, the spray range is wider, and the cleaning efficiency is improved.
In addition, the material of the spray head 2 is preferably boron carbide, and the spray head 2 is the part with the most serious impact in the sand blasting process, so that the more wear-resistant boron carbide is adopted, the service life of the spray head 2 is prolonged, the replacement time of the spray head 2 is shortened, and the sand blasting efficiency is improved.
Preferably, the water outlet end of the high-pressure water pipe 6 is connected with a water delivery nozzle 5, and the water delivery nozzle 5 is in threaded connection with the water inlet 404. In this embodiment, the outer surface of the water delivery nozzle 5 is provided with an external thread, and the water inlet 404 is provided with an internal thread matched with the external thread; the high-pressure water pipe 6 is connected with the water inlet 404 through the water delivery nozzle 5, so that the flow rate can be increased.
Specifically, the water delivery nozzle 5 includes a first injection flow channel 501, a second injection flow channel 502, and a third injection flow channel 503 that are connected in sequence, the first injection flow channel 501 is communicated with the water outlet end of the high-pressure water delivery pipe 6, the third injection flow channel 503 is communicated with the sand mixing chamber 405, the first injection flow channel 501 and the second injection flow channel 502 are both straight pipes, the diameter of the first injection flow channel 501 is larger than that of the second injection flow channel 502, the longitudinal section of the third injection flow channel 503 is in a horn shape, the arrow in fig. 7 represents a longitudinal direction, and the caliber of the third injection flow channel 503 in the horn shape gradually increases along the water outlet direction. The water delivery nozzle 5 of the present embodiment is provided with the first injection flow channel 501, the second injection flow channel 502, and the third injection flow channel 503, which is similar to the bell-mouth amplification principle, so as to enlarge the injection area, improve the injection efficiency, and effectively diffuse high-pressure water in the mulling chamber 405 in the shortest time.
Preferably, the sand mixer 4 includes a first hollow cylindrical section 401 connected to one end of the high-pressure delivery pipe 9, a second hollow cylindrical section 403 connected to the spray head 2, and a hollow sand mixing section 402 for connecting the first hollow cylindrical section 401 and the second hollow cylindrical section 403, the hollow sand mixing section 402 is a circular cone frustum body with an integrated circular ring and circular cone structure, and the water inlet 404 is opened on the circular cone structure of the hollow sand mixing section 402. In the present embodiment, high-pressure delivery pipe 9 is threadedly coupled to first hollow cylindrical section 401 by a coupling 11, which facilitates assembly and replacement of high-pressure delivery pipe 9.
Preferably, the invention further comprises an inner gland 1 and an outer gland 10, wherein the inner gland 1 is sleeved on the spray head 2, the outer gland 10 is sleeved on the second hollow cylindrical section 403 and is in threaded connection with the second hollow cylindrical section 403, the inner gland 1 is convexly provided with a shaft shoulder 101 along the radial direction thereof, the inner part of the outer gland 10 is provided with an annular flange 100, and the shaft shoulder 101 is positioned in the inner side direction of the annular flange 100 and is limited in the outer gland 10 by the annular flange 100. Through setting up interior gland 1 and external pressure lid 10, avoid shower nozzle 2 to expose outside, play protection shower nozzle 2 effect.
Preferably, a sealing ring 3 is arranged between the inner gland 1 and the spray head 2. And meanwhile, the sealing ring 3 is arranged to prevent the abrasive from leaking.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (7)
1. A high-pressure water jet spray gun is characterized by comprising a high-pressure conveying pipe, wherein one end of the high-pressure conveying pipe is connected with a sand mixer, the sand mixer is provided with a sand mixing chamber communicated with the high-pressure conveying pipe, the central axis of the high-pressure conveying pipe is coincided with the central axis of the sand mixing chamber, at least two water inlets communicated with the sand mixing chamber are circumferentially arranged on the sand mixer, an included angle is formed between the central axis of each water inlet and the central axis of the sand mixing chamber, each water inlet is correspondingly connected with a high-pressure water conveying pipe, and a sand outlet of the sand mixer is provided with a spray head communicated with the sand mixing chamber; the number of the water inlets is three, the three water inlets are arranged along the circumferential direction of the sand mixer, and 60-degree included angles are formed between the central axis of each water inlet and the central axis of the sand mixing chamber; the shower nozzle is equipped with the rectangle spout, the shower nozzle is the cylinder, the inside of shower nozzle along the water direction have set gradually the water spray runner, with the rectangle runner of water spray runner intercommunication, the longitudinal section of the bottom export of water spray runner is "v" font, the export of rectangle runner does the rectangle spout.
2. A high pressure water jet lance as claimed in claim 1 wherein the central axis of the water inlet forms an angle of 30 to 80 degrees with the central axis of the mulling chamber.
3. The high-pressure water-jet spray gun as claimed in claim 1, wherein three water inlets are correspondingly connected with three high-pressure water pipes, and the water inlet ends of the three high-pressure water pipes are connected with a high-pressure water inlet pipe through a four-way joint.
4. The high-pressure water-jet spray gun as claimed in claim 1, wherein the water outlet end of the high-pressure water pipe is connected with a water delivery nozzle, and the water delivery nozzle is in threaded connection with the water inlet.
5. The high pressure water jet spray gun of claim 4, wherein the water delivery nozzle comprises a first injection flow channel, a second injection flow channel and a third injection flow channel which are connected in sequence, the first injection flow channel is communicated with the water outlet end of the high pressure water delivery pipe, the third injection flow channel is communicated with the sand mixing chamber, the first injection flow channel and the second injection flow channel are both straight pipes, the diameter of the first injection flow channel is larger than that of the second injection flow channel, the longitudinal section of the third injection flow channel is in a horn shape, and the caliber of the third injection flow channel in the horn shape is gradually increased along the water outlet direction.
6. The high pressure water jet spray gun according to claim 1, wherein the sand mixer comprises a first hollow cylindrical section connected to one end of the high pressure delivery pipe, a second hollow cylindrical section connected to the spray head, and a hollow sand mixing section for connecting the first hollow cylindrical section and the second hollow cylindrical section, the hollow sand mixing section is a conical frustum body of an integral structure of a circular ring and a cone, and the water inlet is formed in a conical structure of the hollow sand mixing section.
7. The high pressure water jet spray gun of claim 6, further comprising an inner gland and an outer gland, wherein the inner gland is sleeved on the spray head, the outer gland is sleeved on the second hollow cylindrical section and is in threaded connection with the second hollow cylindrical section, the inner gland is provided with a shaft shoulder protruding along a radial direction of the inner gland, an annular flange is arranged inside the outer gland, the shaft shoulder is located in an inner direction of the annular flange and is limited in the outer gland by the annular flange, and a sealing ring is arranged between the inner gland and the spray head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011473277.8A CN112742618B (en) | 2020-12-15 | 2020-12-15 | High-pressure water jet spray gun |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011473277.8A CN112742618B (en) | 2020-12-15 | 2020-12-15 | High-pressure water jet spray gun |
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| Publication Number | Publication Date |
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| CN112742618A CN112742618A (en) | 2021-05-04 |
| CN112742618B true CN112742618B (en) | 2022-09-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011473277.8A Active CN112742618B (en) | 2020-12-15 | 2020-12-15 | High-pressure water jet spray gun |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115282730B (en) * | 2022-07-19 | 2024-08-06 | 华中科技大学 | Swirl spray gun for solid-wet fluid and application thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005023233A1 (en) * | 2005-05-20 | 2006-11-23 | Krauss-Maffei Kunststofftechnik Gmbh | spray nozzle |
| US8863456B2 (en) * | 2012-02-09 | 2014-10-21 | Tuscan StoneWorx USA, LLC | Structural insulated panels |
| CN203540755U (en) * | 2013-10-11 | 2014-04-16 | 江苏科能电力机械有限公司 | Gas-liquid mixed jet head of air-cooling radiator cleaning machine |
| CN203695267U (en) * | 2014-01-27 | 2014-07-09 | 厦门泰益新洁净科技有限公司 | Spray gun |
| CN204911863U (en) * | 2015-09-01 | 2015-12-30 | 厦门泰益新洁净科技有限公司 | Cleaning machine and spray gun |
| CN106859356A (en) * | 2017-03-30 | 2017-06-20 | 傅峰峰 | The new type nozzle that can be precisely controlled |
| CN210333067U (en) * | 2019-07-05 | 2020-04-17 | 天津日中环保科技股份有限公司 | Dust dry fog treatment and dust fall sprayer |
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