CN214390679U

CN214390679U - Rotary nozzle

Info

Publication number: CN214390679U
Application number: CN202120101758.XU
Authority: CN
Inventors: 任红卫; 刘建权
Original assignee: Dongguan Air Research Cooling Tower Co ltd
Current assignee: Dongguan Air Research Cooling Tower Co ltd
Priority date: 2021-01-14
Filing date: 2021-01-14
Publication date: 2021-10-15
Anticipated expiration: 2031-01-14

Abstract

The utility model belongs to the technical field of cooling tower spray water spray heads, in particular to a rotary nozzle, which comprises an annular body and a sub-splashing fan blade component, wherein the sub-splashing fan blade component and the annular body are arranged coaxially; the outer circular surface of the annular body is sequentially provided with a threaded connecting part, a clamping part and a positioning part; the two end parts of the inner hole of the annular body are both in an outer splayed structure, and the sub-splashing fan blade component is arranged between the two outer splayed structures and can be adjusted in a telescopic mode relative to the annular body. The inner wall of the inner hole of the end part area of the annular body far away from one end of the splashing fan blade assembly is provided with a spiral groove. The utility model ensures the stability after installation, avoids the phenomenon of poor spraying effect caused by the looseness of the changeable impulsive force of the spraying water due to the adoption of a buckle connection mode in the traditional nozzle; and the high-speed water spraying generates a rotary centrifugal force under the action of the spiral groove, and once the water spraying is sprayed out of the spiral groove, the water spraying has a wider diffusion area, so that the water spraying is more uniformly sprayed.

Description

Rotary nozzle

Technical Field

The utility model belongs to the technical field of cooling tower shower nozzle, especially, relate to a rotating 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 water splashing spray head, and meanwhile, the thermal performance of the cooling tower is directly influenced by the quality of water splashing. At present, cooling tower pipeline nozzle form is mostly unilateral mouth formula, and it adopts the swift connection of buckle mode mostly in the installation, though reaches convenient installation, nevertheless has the not hard up shower of influence spraying effect of nozzle because of the polytropy impulsive force of shower. In addition, the structural design of the nozzle of the existing pipe cooling tower generally has the defects of uneven spraying, small coverage area and easy blockage, and the cooling tower has low heat dissipation efficiency because the pressure loss is large and no way for adapting to the operation with variable flow requirements exists.

Therefore, how to reduce the effect that sprays that self connection structure receives external force influence on the basis of convenient installation nozzle to and how overall structure optimal design sprays the homogeneity and sprays the problem that the cover all is the urgent need to be solved in order to promote.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rotary nozzle aims at solving the nozzle among the prior art and brings because of its self structural design is not good and spray the effect not good, spray the technical problem of drawbacks such as uneven and the cover surface is less.

In order to achieve the above object, an embodiment of the present invention provides a rotary nozzle, include annular body and insert locate this annular body on and relative its pivoted branch spatter fan blade subassembly, divide spatter fan blade subassembly with annular body coaxial line sets up. The purpose of this structural design is to make this rotary nozzle whole operate steadily, avoid producing because of divide spatter the fan blade subassembly and be in the not good phenomenon of spraying effect that causes under the unbalance state.

Optionally, the outer disc of cyclic annular body is equipped with threaded connection portion, card and holding portion and location portion in proper order, threaded connection portion keeps away from divide and spatter fan blade subassembly one end setting. This structural design's aim at is through the card holding the portion is held to the card, warp threaded connection portion installs conveniently annular body just ensures the stability after the installation, avoids traditional nozzle to adopt buckle connected mode, easily produces not hard up and causes the not good phenomenon of spraying because of the polytropy impulsive force of drenching water.

Optionally, both ends of the inner hole of the annular body are in a splayed structure, and the sub-sputtering fan blade assembly is mounted between the two splayed structures and can be adjusted in a telescopic manner relative to the annular body. The structural design aims to change the water yield by adjusting the distance between the sub-splashing fan blade component and the annular body according to the water spraying flow condition, so that the condition of uneven water spraying can be improved.

Optionally, the catches are in a hexagonal row or octagonal configuration. The purpose of this structural design is that this rotatory nozzle is manual convenient dismouting in cooling tower.

Optionally, the sub-splash fan blade assembly includes more than three support arms disposed on the inner hole of the annular body, a shaft sleeve disposed on the support 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. The structural design aims to make the water spray act on the rotating fan blades so as to more uniformly spray the water.

Optionally, the support arm is of a cone structure, and a tip cone end surface of the support arm is arranged towards the port of the annular body far away from one end of the fan blade. The purpose of this structural design is to reduce the resistance of the shower to passing through the annular body.

Optionally, the back of the fan blade is of a hollow structure. The structural design aims to reduce the self weight of the fan blade and weaken the factor of influencing rotation due to the self weight.

Optionally, a spiral groove is formed in the inner wall of an inner hole of the end portion area of the annular body, which is far away from one end of the sub-sputtering fan blade assembly, and the spiral direction of the spiral groove is left-handed or right-handed. The structural design aims to enable the water spraying to generate a rotating centrifugal force and have a wider diffusion area.

Optionally, the number of the spiral grooves is at least one, and the spiral directions of the spiral grooves are consistent. The structural design aims to achieve the purpose of enhancing the rotating centrifugal force generated by water spraying.

Optionally, the threaded connection portion, the clamping portion and the positioning portion are integrally formed with the annular body. The structural design aims to improve the overall strength of the rotary nozzle and reduce the manufacturing cost.

The embodiment of the utility model provides an above-mentioned one or more technical scheme in the rotatory nozzle have one of following technological effect at least:

1. the threaded connection part, the clamping part and the positioning part are additionally arranged on the outer circular surface of the annular body, the clamping part is clamped, the annular body is conveniently mounted or dismounted through the threaded connection part, the stability after mounting is ensured, and the problem that the spraying effect is influenced because the traditional nozzle is in a buckle connection mode and the spray is easy to loosen due to the variable impact force of water is avoided; in addition, the positioning function of the positioning part can further strengthen the stability of the rotating nozzle after installation, and further reduce the influence on the spraying effect caused by looseness.

2. The coaxial-line-arranged sub-splashing fan blade assembly is arranged on the annular body in a rotating mode, and water is sprayed on the rotating fan blades continuously after passing through the annular body, 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.

3. Adopt the both ends of cyclic annular body hole all are outer eight characters type structure, and keep away from divide spatter fan blade subassembly one end be equipped with the helicla flute on the hole inner wall in cyclic annular body tip region for the trickle gets into during the helicla flute, the helicla flute is for a necking down relatively, makes the trickle get into the velocity of flow accelerates behind the helicla flute make high-speed trickle produce rotatory centrifugal force under the effect of helicla flute, in case the trickle is spout behind the helicla flute, the trickle just has wider diffusion area for the more even the spilling of trickle.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural view of a rotary nozzle provided in an embodiment of the present invention;

fig. 2 is a schematic structural view of an annular body according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of an annular body according to an embodiment of the present invention;

fig. 4 is a schematic view of another perspective structure of the rotary nozzle according to the embodiment of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 labeled A;

wherein, in the figures, the respective reference numerals:

10-an annular body, 11-a threaded connection part, 12-a clamping part, 13-a positioning part, 14-a spiral groove, 20-a sub-splash fan blade component, 21-a support arm, 22-a shaft sleeve, 23-a fan blade shaft, 24-a fixing ring and 25-a fan blade.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the embodiments of the present invention and are not to be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In an embodiment of the present invention, as shown in fig. 1, a rotary nozzle is provided, which includes an annular body 10 and a sub-splashing fan blade assembly 20 inserted on the annular body and rotating relative to the annular body. In the specific operation process, the water enters through the water inlet end of the annular body 10 and passes through the annular body 10, so that the water acts on the sub-splashing fan blade assembly 20 and is splashed by the rotating sub-splashing fan blade assembly 20. In this embodiment, divide splash fan blade subassembly 20 with cyclic annular body 10 coaxial line sets up, and this structural design makes the trickle act on divide the power that splashes on fan blade subassembly 20 is comparatively even respectively, and then promotes this rotatory nozzle whole operation stationarity, avoids producing because of divide splash fan blade subassembly 20 and be in and bring the not good drawback of spraying effect under the unbalance state.

As shown in fig. 2, the outer circumferential surface of the annular body 10 is sequentially provided with a threaded connection portion 11, a clamping portion 12 and a positioning portion 13, and with reference to fig. 1, the threaded connection portion 11 is disposed at an end away from the partial sputtering blade assembly 20. In this embodiment, for this manual convenient dismouting of rotatory nozzle in the cooling tower, adopt clamping part 12 is hexagonal row or octagon type structural design and can realize convenient dismouting purpose. Specifically, the utility model adopts the outer circular surface of the annular body 10 to add the threaded connection part 11, the clamping part 12 and the positioning part 13, and through clamping the clamping part 12, the threaded connection part 11 can be conveniently mounted or dismounted with the annular body 10, and the stability after mounting is ensured, thereby avoiding the traditional nozzle adopting a buckle connection mode, and avoiding the influence on the spraying effect caused by the looseness easily generated by the polytropic impact force of the sprayed water; in addition, the positioning function of the positioning part 13 can further strengthen the stability of the rotating nozzle after being installed, and further reduce the influence of looseness on the spraying effect.

Further, the threaded connection portion 11, the retaining portion 12, and the positioning portion 13 are integrally formed with the annular body 10, so as to improve the overall strength of the rotary nozzle and reduce the manufacturing cost.

As shown in fig. 3, both ends of the inner hole of the annular body 10 are in a shape of a Chinese character 'ba'. In this embodiment, a spiral groove 14 is formed on an inner wall of an inner hole of an end portion region of the annular body 10, which is far away from one end of the sub-sputtering blade assembly 20. Specifically, the spiral direction of the spiral groove 14 is left-handed or right-handed, and the number of the spiral grooves 14 is at least one and the spiral directions are consistent. Through splayed structure on the inner hole inner wall of the annular body 10 and the arrangement of the spiral groove 14, when the shower water enters the annular body 10, relatively speaking for a necking down, the effect of the spiral groove 14 is combined, so that the shower water with accelerated flow speed generates rotary centrifugal force under the effect of the spiral groove 14, and once the shower water is sprayed out behind the spiral groove 14, the shower water has wider diffusion area, so that the shower water is more uniformly sprayed, and the shower water has wider diffusion area.

As shown in fig. 4, the sub-splashing fan blade assembly 20 is installed at a position between the two outer splayed structures and can be telescopically adjusted relative to the annular body 10, so as to change the water yield by adjusting the distance between the sub-splashing fan blade assembly 20 and the annular body 10 according to the water spraying flow, thereby improving the uneven water spraying condition.

As shown in fig. 5, the sub-sputtering fan blade assembly 20 includes more than three support arms 21 disposed on the inner hole of the annular body 10, 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. 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 end face of the pointed cone of the support arm is arranged towards the port of the annular body 10 far away from one end of the fan blade 25, so that the structural design aims to provide certain resistance to water spraying through the support arm 21 due to the existence of the support arm, and the support arm 21 is designed into the cone structure, so that the resistance to water spraying is reduced.

Further, in order to weaken the influence on the rotation of the fan blade 25 caused by the self weight of the fan blade 25, the back of the fan blade 25 adopts a hollow structure, and the same flow of water is sprayed onto the fan blade 25 by reducing the self weight of the fan blade 25, so that the rotating speed is higher, and the uniformity of water spraying is strengthened to a certain extent.

The utility model discloses a theory of operation does: the end opening of the annular body 10 is in a splayed structure, when water is gradually pushed forward, the wide diameter is gradually changed into the narrow diameter, the flow speed of the water is gradually accelerated relative to a necking, meanwhile, the accelerated water spraying generates a rotating centrifugal force under the action of the spiral groove 14, when the accelerated and self-rotating water spraying is about to spray out of the splayed structure at the inlet end of the annular body 10, the force of the water spraying from the annular body 10 on the fan blade 25 is strengthened, the other splayed structure provides a wider spraying range for the water spraying, the acting force intensity and the spraying range on the fan blade 25 are strengthened, and the purpose of more uniform water spraying 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 above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A rotary nozzle comprises an annular body and a sub-splashing fan blade assembly which is inserted on the annular body and rotates relative to the annular body, wherein the sub-splashing fan blade assembly and the annular body are arranged coaxially; the method is characterized in that: the outer disc of cyclic annular body is equipped with threaded connection portion, card and holding portion and location portion in proper order, threaded connection portion keeps away from divide and spatter fan blade subassembly one end setting.

2. The rotary nozzle of claim 1, wherein: the two end parts of the inner hole of the annular body are both in an outer splayed structure, and the sub-splashing fan blade assembly is installed between the two outer splayed structures and can be adjusted in a telescopic mode relative to the annular body.

3. The rotary nozzle of claim 1, wherein: the clamping parts are in hexagonal rows or octagonal structures.

4. The rotary nozzle of claim 2, wherein: the sub-splashing fan blade assembly comprises more than three support arms arranged on an inner hole of the annular body, a shaft sleeve arranged on the support 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.

5. The rotary nozzle of claim 4, wherein: the support arm is in a cone structure, and the end face of a pointed cone of the support arm is arranged towards the port of the annular body far away from one end of the fan blade.

6. The rotary nozzle of claim 4, wherein: the back of the fan blade is of a hollow structure.

7. The rotary nozzle of claim 2, wherein: and a spiral groove is arranged on the inner wall of the inner hole of the end part area of the annular body far away from one end of the sub-sputtering fan blade assembly, and the spiral direction of the spiral groove is left-handed or right-handed.

8. The rotary nozzle of claim 7, wherein: the number of the spiral grooves is at least one, and the spiral directions of the spiral grooves are consistent.

9. The rotary nozzle of claim 1, wherein: the threaded connection part, the clamping part and the positioning part are integrally formed and processed with the annular body.