CN114034143A - Self-swinging spraying device and working method - Google Patents
Self-swinging spraying device and working method Download PDFInfo
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- CN114034143A CN114034143A CN202111202570.5A CN202111202570A CN114034143A CN 114034143 A CN114034143 A CN 114034143A CN 202111202570 A CN202111202570 A CN 202111202570A CN 114034143 A CN114034143 A CN 114034143A
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- Prior art keywords
- pipe
- return pipe
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- return
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D1/00—Devices using naturally cold air or cold water
- F25D1/02—Devices using naturally cold air or cold water using naturally cold water, e.g. household tap water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
Abstract
The invention discloses a self-swinging spray device and a working method thereof, wherein the self-swinging spray device comprises a main pipe and N self-swinging spray heads, wherein N is a natural number more than or equal to 1; the self-swinging spray head comprises an access pipe, an expansion pipe, a first return pipe, a second return pipe and a nozzle. The spraying device realizes the spraying through the structural design of the flow channel, and utilizes the two return channels to convey part of fluid to the upstream so as to influence the main flow, and the alternate influence of the two return channels causes the fluid to swing back and forth at the outlet. The invention has simple structure, no moving parts, no need of lubrication and maintenance, long service life, reduced failure probability and no maintenance.
Description
Technical Field
The invention relates to the field of fluid dynamics, in particular to a self-swinging spraying device and a working method.
Background
In some industrial occasions requiring heat dissipation and temperature reduction, a spraying device is generally required to be equipped to enhance heat dissipation through water spraying. The traditional spraying device sprays in a single direction, so that uneven heat dissipation is easily caused, or nozzles in multiple directions are installed or mechanical swing equipment is used for considering heat dissipation in each direction around the traditional spraying device. However, the installation of a plurality of nozzles increases the cost, and if the mechanical swing device is installed, the mechanical swing device itself is a moving part, and the long-term operation shortens the service life, and at the same time, regular maintenance, replacement, or addition of a lubricant is required, which consumes a certain amount of manpower and material resources, and increases the maintenance cost. Therefore, there is a need for a stable and long-life sprinkler device without moving parts.
Disclosure of Invention
The invention aims to solve the technical problem of providing a self-swinging spraying device and a working method aiming at the defects involved in the background technology.
The invention adopts the following technical scheme for solving the technical problems:
a self-swinging spray device comprises a main pipe and N self-swinging spray heads, wherein N is a natural number more than or equal to 1;
the self-swinging spray head comprises an access pipe, an expansion pipe, a first return pipe, a second return pipe and a nozzle;
the access pipe is a pipeline which is gradually reduced from an inlet to an outlet;
the first return pipe and the second return pipe have the same structure and are both U-shaped pipes;
the expansion pipe comprises an inflow part, a connecting part and an outflow part, wherein the connecting part is a straight pipe, one end of the connecting part is connected with an outlet of the inflow part, and the other end of the connecting part is connected with an inlet of the outflow part; the inflow part is a pipeline gradually expanded from an inlet to an outlet; the outflow part is a pipeline which is gradually reduced from an inlet to an outlet;
the nozzle is gradually expanded from an inlet to an outlet;
the first return pipe and the second return pipe are symmetrically arranged on two sides of the enlarged pipe and are positioned on the same plane, one end of each return pipe is communicated with the inlet of the inflow part of the enlarged pipe, the other end of each return pipe is communicated with the side wall of the connecting part of the enlarged pipe, and the cross-sectional areas of the first return pipe and the second return pipe are smaller than that of the connecting part of the enlarged pipe;
the inlet of the inflow part of the expansion pipe is connected with the outlet of the access pipe, the outlet of the outflow part of the expansion pipe is connected with the inlet of the nozzle, and the access pipe, the expansion pipe and the nozzle are coaxial;
the main pipe is used for accessing external fluid and enabling the external fluid to flow into each self-swinging spray head;
when N is 1, the access pipe of the self-swinging spray head is communicated with the main pipe, and a first return pipe and a second return pipe of the self-swinging spray head are horizontally arranged;
when N is greater than 1, N self-oscillating spray heads are uniformly arranged along the circumferential direction of the main pipe, the access pipes of the self-oscillating spray heads are communicated with the main pipe, and the first return pipe and the second return pipe of the self-oscillating spray heads are horizontally arranged.
As a further optimization scheme of the self-swinging spraying device, N is 4.
The four self-oscillating spray heads can enable the oscillation range of the fluid spray to be close to 360 degrees.
The invention also discloses a spraying method of the self-swinging spraying device, which comprises the following processes:
the fluid enters from the header pipe and then flows into the access pipe of each self-swinging spray head, and flows into the enlarged pipe after accelerating at the access pipe, because of the wall attachment effect of the fluid, the fluid can flow towards one of the first return pipe and the second return pipe, so that the fluid flows towards the first return pipe, at the moment, one part of the fluid is sprayed out from the nozzle towards the direction of the second return pipe, and the other part of the fluid passes through the inlet of the enlarged pipe of the first return pipe under the action of pressure difference to interfere the main flow fluid, so that the fluid flow deflects towards the direction of the second return pipe;
at the moment, one part of fluid is sprayed out from the nozzle towards the direction of the first return pipe, and the other part of fluid disturbs the main flow fluid through the inlet of the second return pipe expanding pipe under the action of pressure difference, so that the fluid flow is deflected towards the direction of the first return pipe;
the first return pipe and the second return pipe act alternately, so that the disturbance of the main flow by the return flow is periodic, and the fluid swings back and forth periodically at the nozzle.
Compared with the prior art, the invention adopting the technical scheme has the following technical effects:
the invention realizes 360-degree spraying through the structural design of the flow channel. With two return channels, a part of the fluid is conveyed upstream, so that the main flow is influenced, and the alternating influence of the two return channels causes the fluid to swing back and forth at the outlet. The single self-swinging spray head can deflect the fluid to swing by 70-90 degrees, the four self-swinging spray heads can enable the fluid spraying range to cover nearly 360 degrees, and the included angle between the nozzle and the inlet section can be adjusted to change the state of the jet flow. The self-swinging spraying device has the advantages that no moving part exists in the structure, the probability of fault occurrence is reduced, the service life is as long as decades, and the self-swinging spraying device has great advantages.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a self-oscillating showerhead;
in the figure, 1-access pipe, 2-nozzle, 3-first return pipe, 4-enlarged pipe, 5-second return pipe, 6-self-swinging spray head and 7-main pipe.
Detailed Description
The technical scheme of the invention is further explained in detail by combining the attached drawings:
the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, components are exaggerated for clarity.
It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, components and/or sections, these elements, components and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, and/or section from another. Thus, a first element, component, and/or section discussed below could be termed a second element, component, or section without departing from the teachings of the present invention.
As shown in fig. 1, a self-oscillating spray device includes a main pipe and N self-oscillating spray heads, where N is a natural number greater than or equal to 1;
as shown in fig. 2, the self-oscillating nozzle comprises an access pipe, an expansion pipe, a first return pipe, a second return pipe and a nozzle;
the access pipe is a pipeline which is gradually reduced from an inlet to an outlet;
the first return pipe and the second return pipe have the same structure and are both U-shaped pipes;
the expansion pipe comprises an inflow part, a connecting part and an outflow part, wherein the connecting part is a straight pipe, one end of the connecting part is connected with an outlet of the inflow part, and the other end of the connecting part is connected with an inlet of the outflow part; the inflow part is a pipeline gradually expanded from an inlet to an outlet; the outflow part is a pipeline which is gradually reduced from an inlet to an outlet;
the nozzle is gradually expanded from an inlet to an outlet;
the first return pipe and the second return pipe are symmetrically arranged on two sides of the enlarged pipe and are positioned on the same plane, one end of each return pipe is communicated with the inlet of the inflow part of the enlarged pipe, the other end of each return pipe is communicated with the side wall of the connecting part of the enlarged pipe, and the cross-sectional areas of the first return pipe and the second return pipe are smaller than that of the connecting part of the enlarged pipe;
the inlet of the inflow part of the expansion pipe is connected with the outlet of the access pipe, the outlet of the outflow part of the expansion pipe is connected with the inlet of the nozzle, and the access pipe, the expansion pipe and the nozzle are coaxial;
the main pipe is used for accessing external fluid and enabling the external fluid to flow into each self-swinging spray head;
when N is 1, the access pipe of the self-swinging spray head is communicated with the main pipe, and a first return pipe and a second return pipe of the self-swinging spray head are horizontally arranged;
when N is greater than 1, N self-oscillating spray heads are uniformly arranged along the circumferential direction of the main pipe, the access pipes of the self-oscillating spray heads are communicated with the main pipe, and the first return pipe and the second return pipe of the self-oscillating spray heads are horizontally arranged.
N preferentially takes 4, 4 self-oscillating spray heads to enable the oscillation range of the fluid spray to be close to 360 degrees.
The invention also discloses a spraying method of the self-swinging spraying device, which comprises the following processes:
the fluid enters from the header pipe and then flows into the access pipe of each self-swinging spray head, and flows into the enlarged pipe after accelerating at the access pipe, because of the wall attachment effect of the fluid, the fluid can flow towards one of the first return pipe and the second return pipe, so that the fluid flows towards the first return pipe, at the moment, one part of the fluid is sprayed out from the nozzle towards the direction of the second return pipe, and the other part of the fluid passes through the inlet of the enlarged pipe of the first return pipe under the action of pressure difference to interfere the main flow fluid, so that the fluid flow deflects towards the direction of the second return pipe;
at the moment, one part of fluid is sprayed out from the nozzle towards the direction of the first return pipe, and the other part of fluid disturbs the main flow fluid through the inlet of the second return pipe expanding pipe under the action of pressure difference, so that the fluid flow is deflected towards the direction of the first return pipe;
the first return pipe and the second return pipe act alternately, so that the disturbance of the main flow by the return flow is periodic, and the fluid swings back and forth periodically at the nozzle.
The invention has simple structure, no moving parts, reduced failure probability, long service life up to decades and great advantages.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only illustrative of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A self-swinging spray device is characterized by comprising a main pipe and N self-swinging spray heads, wherein N is a natural number more than or equal to 1;
the self-swinging spray head comprises an access pipe, an expansion pipe, a first return pipe, a second return pipe and a nozzle;
the access pipe is a pipeline which is gradually reduced from an inlet to an outlet;
the first return pipe and the second return pipe have the same structure and are both U-shaped pipes;
the expansion pipe comprises an inflow part, a connecting part and an outflow part, wherein the connecting part is a straight pipe, one end of the connecting part is connected with an outlet of the inflow part, and the other end of the connecting part is connected with an inlet of the outflow part; the inflow part is a pipeline gradually expanded from an inlet to an outlet; the outflow part is a pipeline which is gradually reduced from an inlet to an outlet;
the nozzle is gradually expanded from an inlet to an outlet;
the first return pipe and the second return pipe are symmetrically arranged on two sides of the enlarged pipe and are positioned on the same plane, one end of each return pipe is communicated with the inlet of the inflow part of the enlarged pipe, the other end of each return pipe is communicated with the side wall of the connecting part of the enlarged pipe, and the cross-sectional areas of the first return pipe and the second return pipe are smaller than that of the connecting part of the enlarged pipe;
the inlet of the inflow part of the expansion pipe is connected with the outlet of the access pipe, the outlet of the outflow part of the expansion pipe is connected with the inlet of the nozzle, and the access pipe, the expansion pipe and the nozzle are coaxial;
the main pipe is used for accessing external fluid and enabling the external fluid to flow into each self-swinging spray head;
when N is 1, the access pipe of the self-swinging spray head is communicated with the main pipe, and a first return pipe and a second return pipe of the self-swinging spray head are horizontally arranged;
when N is greater than 1, N self-oscillating spray heads are uniformly arranged along the circumferential direction of the main pipe, the access pipes of the self-oscillating spray heads are communicated with the main pipe, and the first return pipe and the second return pipe of the self-oscillating spray heads are horizontally arranged.
2. A self-oscillating spray device according to claim 1, wherein N is 4.
3. The spraying method of the self-oscillating spraying device according to claim 1, comprising the following steps:
the fluid enters from the header pipe and then flows into the access pipe of each self-swinging spray head, and flows into the enlarged pipe after accelerating at the access pipe, because of the wall attachment effect of the fluid, the fluid can flow towards one of the first return pipe and the second return pipe, so that the fluid flows towards the first return pipe, at the moment, one part of the fluid is sprayed out from the nozzle towards the direction of the second return pipe, and the other part of the fluid passes through the inlet of the enlarged pipe of the first return pipe under the action of pressure difference to interfere the main flow fluid, so that the fluid flow deflects towards the direction of the second return pipe;
at the moment, one part of fluid is sprayed out from the nozzle towards the direction of the first return pipe, and the other part of fluid disturbs the main flow fluid through the inlet of the second return pipe expanding pipe under the action of pressure difference, so that the fluid flow is deflected towards the direction of the first return pipe;
the first return pipe and the second return pipe act alternately, so that the disturbance of the main flow by the return flow is periodic, and the fluid swings back and forth periodically at the nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111202570.5A CN114034143A (en) | 2021-10-15 | 2021-10-15 | Self-swinging spraying device and working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111202570.5A CN114034143A (en) | 2021-10-15 | 2021-10-15 | Self-swinging spraying device and working method |
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| Publication Number | Publication Date |
|---|---|
| CN114034143A true CN114034143A (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111202570.5A Pending CN114034143A (en) | 2021-10-15 | 2021-10-15 | Self-swinging spraying device and working method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050252539A1 (en) * | 2004-05-17 | 2005-11-17 | Asmo Co., Ltd. | Vehicular washer nozzle |
| KR100548111B1 (en) * | 2003-03-19 | 2006-02-02 | 가부시키가이샤 히다치 산키시스템 | Fluidic element |
| CN108722694A (en) * | 2018-04-12 | 2018-11-02 | 南京航空航天大学 | A kind of supersonic jet oscillator |
| CN110986348A (en) * | 2019-12-13 | 2020-04-10 | 南京航空航天大学 | Automatic swinging blowing equipment and working method |
| CN111780595A (en) * | 2020-06-23 | 2020-10-16 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Heat exchange plate and micro-channel heat exchanger |
-
2021
- 2021-10-15 CN CN202111202570.5A patent/CN114034143A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100548111B1 (en) * | 2003-03-19 | 2006-02-02 | 가부시키가이샤 히다치 산키시스템 | Fluidic element |
| US20050252539A1 (en) * | 2004-05-17 | 2005-11-17 | Asmo Co., Ltd. | Vehicular washer nozzle |
| CN108722694A (en) * | 2018-04-12 | 2018-11-02 | 南京航空航天大学 | A kind of supersonic jet oscillator |
| CN110986348A (en) * | 2019-12-13 | 2020-04-10 | 南京航空航天大学 | Automatic swinging blowing equipment and working method |
| CN111780595A (en) * | 2020-06-23 | 2020-10-16 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Heat exchange plate and micro-channel heat exchanger |
Non-Patent Citations (1)
| Title |
|---|
| 于振兴: "回流式自激振荡射流喷嘴内部流动特性分析", 《机械科学与技术》 * |
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Application publication date: 20220211 |