CN211756089U - Rotary nozzle suitable for variable flow - Google Patents
Rotary nozzle suitable for variable flow Download PDFInfo
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- CN211756089U CN211756089U CN202020141763.9U CN202020141763U CN211756089U CN 211756089 U CN211756089 U CN 211756089U CN 202020141763 U CN202020141763 U CN 202020141763U CN 211756089 U CN211756089 U CN 211756089U
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Abstract
The utility model provides a rotary nozzle suitable for variable flow, belonging to the technical field of cooling tower spray water nozzles; the coaxial-type sputtering device comprises an annular body, wherein the annular body comprises a self-rotating pressurizing section and a bell mouth receiving section arranged at the upper end of the self-rotating pressurizing section, a coaxial-line sputtering blade component is rotatably arranged on the annular body, and the sputtering blade component can be telescopically adjusted relative to the annular body; the inner wall of the self-spinning pressurizing section is provided with a spiral groove, and the inner wall of one port of the self-spinning pressurizing section far away from the bell mouth bearing section is provided with a flow guide pressurizing step. The utility model discloses carry out configuration optimization to the nozzle of current technique, effectively improve the homogeneity that sprays the effect, especially can improve the condition of spraying the inhomogeneity under the different flow circumstances.
Description
Technical Field
The utility model relates to a technical field of cooling tower shower nozzle especially relates to a be suitable for variable flow's rotatory nozzle.
Background
The cooling tower is a device which uses water as circulating coolant, absorbs heat from a system and discharges the heat to the atmosphere so as to reduce the water temperature; the cold is an evaporation heat dissipation device which utilizes the principles that water is in flow contact with air and then carries out heat exchange to generate steam, the steam volatilizes and takes away heat to achieve evaporation heat dissipation, convection heat transfer, radiation heat transfer and the like to dissipate waste heat generated in industry or refrigeration air conditioners to reduce the water temperature so as to ensure the normal operation of the system; this type of equipment is known as a cooling tower because it is generally barrel-shaped.
The current cross-flow cooling tower uses a pool type water distribution nozzle which generally comprises a main pipe and a circular splash pan arranged below the main pipe. The water distribution spray head is an important core part in a tower core part of the cooling tower, the thermal performance efficiency of the cooling tower is high or low, the thermal performance efficiency of the cooling tower is in great relation with the performance of the spray head of the water splashing spray head, and meanwhile, the thermal performance of the cooling tower is directly influenced by the quality of the splashed water. At present, the nozzle structure form of the cooling tower is simple, the spraying effect is general, the spraying water is not uniform, and the cooling tower has low heat dissipation efficiency due to no method for adapting to variable flow operation.
Therefore, how to improve the spraying uniformity of the nozzle, especially the spraying uniformity under the condition of variable flow rate, is an urgent problem to be solved.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a be suitable for variable flow's rotating nozzle, its nozzle to current technique carries out configuration optimization, realizes improving the homogeneity that sprays the effect, especially can improve the condition of spraying the inhomogeneity under the different flow circumstances.
The utility model provides the following technical scheme that the rotary nozzle suitable for variable flow comprises an annular body, wherein the annular body comprises a self-rotating pressurizing section and a bell mouth bearing section arranged at the upper end of the self-rotating pressurizing section; preferably, the annular body is rotatably provided with a coaxial sub-sputtering fan blade assembly, and the sub-sputtering fan blade assembly can be telescopically adjusted relative to the annular body; the structural design realizes that the sprayed water is sprayed through the spin supercharging section in an accelerating way, and the splashing fan blade component is pushed under the action of the water to spray the sprayed water more uniformly; in addition, according to the condition of water spraying flow, the water yield can be changed by adjusting the distance between the sub-splashing fan blade assembly and the annular body, and the condition of uneven water spraying can be improved.
Preferably, the sub-splash fan blade assembly includes more than three bracket arms disposed on an inner cavity of a port far away from the water inlet end of the bell mouth receiving section, a shaft sleeve disposed on the bracket arms and coaxial with the annular body, a fan blade shaft movably disposed in the shaft sleeve, a fixing ring movably locked on the fan blade shaft, and a plurality of fan blades mounted at one end of the fan blade shaft in an array manner.
Preferably, the back of the fan blade adopts a hollow structure; the structural design reduces the self weight of the fan blade and weakens the factors influencing rotation due to the self weight.
Preferably, the support arm is of a cone structure, and the end face of a pointed cone of the support arm is arranged towards the water inlet end of the bell-mouth bearing section; this structural design weakens the resistance of the shower of water through the annular body.
Preferably, the inner wall of the self-rotating pressurizing section is provided with a spiral groove, and the rotation direction of the spiral groove is left-handed or right-handed; the structural design enables the water spraying to generate a rotary centrifugal force and has a wider diffusion area.
Preferably, the number of the spiral grooves is at least one, and the spiral directions of the spiral grooves are consistent; the structural design achieves the purpose of enhancing the rotating centrifugal force generated by water spraying.
Preferably, a flow guiding pressurizing step is arranged on the inner wall of one end opening of the spinning pressurizing section, which is far away from the bell-mouth receiving section; the structural design strengthens the force of spraying water from the annular body and enhances the pushing strength of the fan blades.
Preferably, mounting lugs are uniformly distributed on the outer wall of the bell-mouth receiving section; the structural design is convenient for mounting the rotary nozzle suitable for variable flow, and the bellmouth bearing section can also be acted as a reinforcing rib.
Preferably, the water inlet end port of the bell-mouth receiving section extends outwards to form a convex edge, and the structural design facilitates the alignment installation of the rotary nozzle suitable for variable flow.
The beneficial effects of the utility model are that, compared with current cooling tower nozzle, have following advantage:
1. the coaxial splashing fan blade assembly is arranged on the annular body in a rotating mode, the purpose of the coaxial splashing fan blade assembly is that water is enabled to pass through the annular body and then is pushed to rotate under the acting force of the water, and the water is sprayed on the rotating fan blade continuously, so that the water is sprayed more uniformly. And the sub-splashing fan blade component can be telescopically adjusted relative to the annular body, so that the water yield can be changed by adjusting the distance between the sub-splashing fan blade component and the annular body according to the water spraying flow condition, and the condition that the water spraying is uneven due to different flows is effectively improved.
2. The inner wall of the self-rotating pressurizing section is provided with a spiral groove, the rotating direction of the spiral groove is left-handed or right-handed, and the number of the spiral grooves is at least one and the rotating directions are consistent. When the shower water enters the self-rotation pressurizing section from the bell mouth receiving section, the self-rotation pressurizing section is relatively relative to a necking neck, so that the flow speed of the shower water after entering the self-rotation pressurizing section is accelerated, the high-speed shower water generates a rotating centrifugal force under the action of the spiral groove, and once the shower water is sprayed out of the self-rotation pressurizing section, the shower water has a wider diffusion area, so that the shower water is more uniformly sprayed.
3. A flow guide pressurizing step is arranged on the inner wall of one port of the spinning pressurizing section far away from the bell-mouth bearing section; the structural design ensures that the spraying caliber of the water to be sprayed out of the self-rotating pressurizing section is suddenly contracted, the force of spraying the water from the annular body is enhanced, the pushing strength to the fan blade is enhanced, and the water is sprayed on the fan blade rotating faster, so that the aim of spraying the water more uniformly is fulfilled.
Drawings
Fig. 1 is a schematic perspective view of a rotary nozzle suitable for variable flow rate according to the present invention;
FIG. 2 is a schematic view of another aspect of the rotary nozzle of the present invention adapted to provide variable flow capacity;
fig. 3 is a schematic view of another view of the rotary nozzle suitable for variable flow rate according to the present invention;
FIG. 4 is a cross-sectional view of a spin boost section of a variable flow rotary nozzle in accordance with the present invention;
description of reference numerals: 10-a ring body, 11-a spinning pressurizing end, 111-a spiral groove, 112-a flow guide pressurizing step, 12-a bell mouth bearing section, 121-an installation lug, 122-a convex edge, 20-a splash fan blade component, 21-a middle arm, 22-a shaft sleeve, 23-a fan blade shaft, 24-a fixing ring and 25-a fan blade.
Detailed Description
In order to make the object, technical solution and technical effect of the present invention more clearly understood, the present invention will be further described with reference to the following embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1, a rotary nozzle suitable for variable flow includes an annular body 10, which includes a self-rotating pressurizing section 11 and a bell-mouth receiving section 12 disposed at an upper end of the self-rotating pressurizing section, wherein a flared end of the bell-mouth receiving section 12 is a water inlet end. In this embodiment, the bell-mouth receiving section 12 is used as an installation part of the rotary nozzle suitable for variable flow rate to be installed on a cooling tower, and in order to facilitate the requirement of the installation of the bell-mouth receiving section 12 in alignment, a convex edge 122 is formed by extending outwards from a water inlet end port of the bell-mouth receiving section 12; preferably, the outer wall of the bell-mouth receiving section 12 is uniformly provided with mounting lugs 121, and the mounting lugs 121 can also play a role of reinforcing ribs for the bell-mouth receiving section 121 on the basis of facilitating the mounting of the rotary nozzle suitable for variable flow.
Furthermore, a coaxial sub-sputtering fan blade assembly 20 is rotatably arranged on the annular body 10, and the sub-sputtering fan blade assembly 20 can be adjusted in a telescopic manner relative to the annular body 10. In this embodiment, the coaxial sub-splashing fan blade assembly 20 is rotatably arranged on the annular body 10, so that after the shower water passes through the annular body 10, the sub-splashing fan blade assembly 20 is pushed to rotate under the action of the water, and the shower water is continuously sprayed on the rotating sub-splashing fan blade assembly 20, so that the shower water is more uniformly sprinkled. In addition, the sub-splashing fan blade assembly 20 can be adjusted in a telescopic mode relative to the annular body 10, the water yield can be changed by adjusting the distance between the sub-splashing fan blade assembly 20 and the annular body 10 according to the water spraying flow condition, and the condition that water spraying is uneven due to different flow rates is effectively improved.
Referring to fig. 2, the sub-splash fan blade assembly 20 includes more than three support arms 21 disposed on an inner cavity of an end port far from a water inlet end of the bell mouth receiving section 12, a shaft sleeve 22 disposed on the support arms and coaxial with the annular body 10, a fan blade shaft 23 movably disposed in the shaft sleeve, a fixing ring 24 movably locked on the fan blade shaft, and a plurality of fan blades 25 mounted at one end of the fan blade shaft in an array manner. In this embodiment, the number of the support arms 21 is three, the three support arms 21 are arranged on the shaft sleeve 22 in a radial array, and the fixing ring 24 fixes the vane shaft 23 relative to any position of the shaft sleeve 22, so as to adjust the position of the vane 25 relative to the annular body 10.
Furthermore, the support arm 21 is a cone structure, and the pointed cone end of the support arm is arranged towards the water inlet end of the bell-mouth receiving section 12, so that the structural design aims to provide certain resistance to the water spraying flowing through the support arm 21 due to the existence of the support arm 21, and the support arm 21 is designed to be the cone structure, so that the resistance to the water spraying is reduced.
Referring to fig. 3, in order to reduce the influence of the self weight of the fan blade 25 on the rotation of the fan blade, the back surface of the fan blade 25 adopts a hollow structure, and the weight of the fan blade 25 is reduced, so that the shower water with the same flow rate is sprayed onto the fan blade 25 and has a faster rotating speed, and the uniformity of the shower water is enhanced to a certain extent.
Referring to fig. 4, a spiral groove 111 is formed on the inner wall of the spin supercharging section 11, and the rotation direction of the spiral groove is left-handed or right-handed; preferably, the number of the spiral grooves 111 is at least one and the spiral directions are consistent. When the shower water enters the spin pressurizing section 11 from the bell-mouth receiving section 12, the spin pressurizing section 11 is relatively a necking neck, so that the flow rate of the shower water after entering the spin pressurizing section 11 is accelerated, the accelerated shower water generates a rotating centrifugal force under the action of the spiral groove 111, and once the shower water is sprayed out of the spin pressurizing section 11, the shower water has a wider diffusion area, so that the shower water is more uniformly sprayed.
Further, a flow guiding pressurizing step 112 is arranged on the inner wall of one end opening of the spinning pressurizing section 11 far away from the bell-mouth receiving section 12. In this embodiment, the spraying aperture of the water to be sprayed out of the spin pressurizing section 11 is sharply contracted by the structural design, the spraying force of the water from the annular body 10 is enhanced, the pushing strength to the fan blades 25 is enhanced, and the water is sprayed on the fan blades 25 rotating faster, so that the purpose of spraying the water more uniformly is achieved.
The utility model discloses a theory of operation does: the shower water enters the annular body 10 through the water inlet end of the bell mouth receiving section 12, at the intersection of the self-rotation pressurizing section 11 and the bell mouth receiving section 12, the self-rotation pressurizing section 11 is relatively narrowed, so that the flow rate of the shower water entering the self-rotation pressurizing section 11 is increased, the accelerated shower water generates a rotating centrifugal force under the action of the spiral groove 111, when the shower water with acceleration and self-rotation is about to be sprayed out of the self-rotation pressurizing section 11, due to the existence of the flow guide pressurizing step 112, the spraying caliber of the shower water to be sprayed out of the self-rotation pressurizing section 11 is suddenly contracted, the spraying force of the shower water from the annular body 10 is enhanced, the pushing strength of the fan blade 25 is enhanced, and the shower water is sprayed on the fan blade 25 which rotates faster, so that the aim of more uniformly spraying the shower water is achieved. In addition, aiming at water spraying with different flow rates, the fixing ring 24 can fix the fan blade shaft 23 relative to any position of the shaft sleeve 22, so that the position of the fan blade 25 relative to the annular body 10 can be adjusted, and the condition of non-uniformity in spraying under different flow rates can be improved.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of the ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, its framework form can be nimble changeable, can derive series of products. But merely as a matter of simple deductions or substitutions, should be considered as belonging to the scope of patent protection of the present invention as determined by the claims submitted.
Claims (9)
1. A rotary nozzle suitable for variable flow comprises an annular body, wherein the annular body comprises a self-rotating pressurizing section and a bell-mouth receiving section arranged at the upper end of the self-rotating pressurizing section; the method is characterized in that: the annular body is rotatably provided with a coaxial sub-splashing fan blade assembly, and the sub-splashing fan blade assembly can be adjusted in a telescopic mode relative to the annular body.
2. The rotary nozzle adapted for variable flow of claim 1, wherein: the sub-splashing fan blade assembly comprises more than three bracket arms arranged on an inner cavity of a port far away from the water inlet end of the bell mouth bearing section, a shaft sleeve arranged on the bracket arms and coaxial with the annular body, a fan blade shaft movably arranged in the shaft sleeve, a fixing ring movably locked on the fan blade shaft and a plurality of fan blades arranged at one end of the fan blade shaft in an array mode.
3. A rotary nozzle adapted for variable flow according to claim 2, wherein: the back of the fan blade is of a hollow structure.
4. A rotary nozzle adapted for variable flow according to claim 2, wherein: the support arm is of a cone structure, and the end face of a pointed cone of the support arm is arranged towards the water inlet end of the bell mouth bearing section.
5. The rotary nozzle adapted for variable flow of claim 1, wherein: the inner wall of the self-rotating pressurizing section is provided with a spiral groove, and the rotating direction of the spiral groove is left-handed or right-handed.
6. The rotary nozzle adapted for variable flow of claim 5, wherein: the number of the spiral grooves is at least one, and the spiral directions of the spiral grooves are consistent.
7. The rotary nozzle adapted for variable flow of claim 1, wherein: and a flow guide pressurizing step is arranged on the inner wall of one end opening of the spinning pressurizing section far away from the bell mouth bearing section.
8. The rotary nozzle adapted for variable flow of claim 1, wherein: and mounting lugs are uniformly distributed on the outer wall of the bell mouth bearing section.
9. The rotary nozzle adapted for variable flow of claim 1, wherein: the port of the water inlet end of the bell-mouth bearing section extends outwards to form a convex edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020141763.9U CN211756089U (en) | 2020-01-21 | 2020-01-21 | Rotary nozzle suitable for variable flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020141763.9U CN211756089U (en) | 2020-01-21 | 2020-01-21 | Rotary nozzle suitable for variable flow |
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| CN211756089U true CN211756089U (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020141763.9U Active CN211756089U (en) | 2020-01-21 | 2020-01-21 | Rotary nozzle suitable for variable flow |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112999803A (en) * | 2021-03-15 | 2021-06-22 | 机械工业第九设计研究院有限公司 | Intelligent dust falling device for factory building |
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2020
- 2020-01-21 CN CN202020141763.9U patent/CN211756089U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112999803A (en) * | 2021-03-15 | 2021-06-22 | 机械工业第九设计研究院有限公司 | Intelligent dust falling device for factory building |
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