CN215843669U

CN215843669U - Jet type unpowered rotary nozzle

Info

Publication number: CN215843669U
Application number: CN202022856313.0U
Authority: CN
Inventors: 刘建权; 任红卫
Original assignee: Guangdong Jihua Kongyan Environmental Technology Co ltd
Current assignee: Guangdong Jihua Kongyan Environmental Technology Co ltd
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2022-02-18
Anticipated expiration: 2030-12-01

Abstract

The utility model belongs to the technical field of cooling tower spray water nozzles, and particularly relates to a jet type unpowered rotary nozzle which comprises an annular nozzle seat with a thick bottom and a thin top and a rotary splashing module movably arranged on the annular nozzle seat; a reducing guide ring is movably sleeved on the inner wall of the top of the annular nozzle seat; the rotary splashing module penetrates from the bottom of the annular nozzle seat and is arranged in an inner cavity of the annular nozzle seat, and the rotary splashing module is axially adjusted in a telescopic mode relative to the annular nozzle seat so as to control the water yield. According to the utility model, the water sprayed on the rotary splashing module can be enough to push the rotary splashing module to rotate, and the rotary splashing module is driven without external power; in addition, the water yield can be changed by adjusting the distance between the fan blades and the reducing guide ring according to the water spraying flow condition, and the condition that water spraying is uneven due to different flow rates is effectively improved.

Description

Jet type unpowered rotary nozzle

Technical Field

The utility model belongs to the technical field of cooling tower spray water nozzles, and particularly relates to a jet type unpowered rotary 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, the cooling tower pipeline nozzle form is mostly unilateral mouth and spiral, exists and sprays inhomogeneously, and the coverage is not big, and easy the jam, the pressure loss is great, and the operation that does not have the way to adapt to the variable flow demand more leads to the cooling tower radiating efficiency low. Some rotating nozzles on the market can cover a larger area when spraying, but the nozzles can be rotated only by adding a motor, so that resources are wasted.

Therefore, how to reduce energy consumption, improve spraying uniformity and spraying coverage is an urgent problem to be solved, and especially how to achieve spraying uniformity and spraying coverage under the conditions of variable flow and low energy consumption is urgent need.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a jet type unpowered rotary nozzle, and aims to solve the technical problems that a nozzle in the prior art has the defects of poor spraying uniformity, narrow coverage area, easiness in blockage and large pressure loss, and particularly the cooling efficiency of a cooling tower is low due to the fact that the nozzle cannot adapt to the requirements of variable flow and low energy consumption.

In order to achieve the above object, an embodiment of the present invention provides a jet-type unpowered rotary nozzle, which includes an annular nozzle holder with a thick bottom and a thin top, and a rotary spitting module movably disposed on the annular nozzle holder. The top of the annular nozzle seat is a water inlet end, the bottom of the annular nozzle seat is a water outlet end, and due to the difference of the sectional areas of the water inlet end and the water outlet end, a water body passing through the annular nozzle seat can drive the rotary splashing module to rotate to realize the spraying effect.

Optionally, a reducing guide ring is movably sleeved on the inner wall of the water inlet end at the top of the annular nozzle seat to adjust the difference of the sectional areas of the water inlet end and the water outlet end of the annular nozzle seat, and the outer wall of the reducing guide ring is in transition fit with the inner wall at the top of the annular nozzle seat; the rotary splashing module penetrates through the water outlet end at the bottom of the annular nozzle seat and is arranged in the inner cavity of the annular nozzle seat, and the rotary splashing module is axially adjusted in a telescopic mode relative to the annular nozzle seat so as to control the water outlet quantity. The diameter-variable flow guide ring with the structural design realizes adjustment of the difference of the sectional areas of the water inlet end and the water outlet end of the annular nozzle seat, so that the water sprayed on the rotary splashing module is enough to push the rotary splashing module to rotate, and the sprayed water coverage surface is enlarged; in addition, according to the condition of the water spraying flow, the water outlet quantity can be changed by adjusting the distance between the rotary splashing module and the annular nozzle seat, and the condition of uneven water spraying can be improved.

Optionally, a plurality of support arms are arranged on the inner wall far away from the bottom of the annular nozzle holder in an array manner, and one ends of the plurality of support arms are gathered inwards to form a shaft sleeve for supporting the rotary splashing module; the rotary sputtering module and the shaft sleeve are coaxially arranged, and a fixing ring is arranged at a port of the shaft sleeve, so that the rotary sputtering module can be adjusted in the axial direction relative to the shaft sleeve.

Optionally, the rotary splashing module comprises a fan blade shaft movably arranged in the shaft sleeve and a plurality of fan blades arranged at one end of the fan blade shaft in an array manner.

Optionally, the back of the fan blade is of 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.

Optionally, the support arm is of a cone structure, and a pointed cone end of the cone structure faces the top of the annular nozzle seat. This structural design weakens the resistance of the shower of water through the annular body.

Optionally, the outer wall of the reducing guide ring and the inner wall of the top of the annular nozzle seat are in transition fit. The purpose of this structural design is to satisfy the convenience requirement when reducing water conservancy diversion ring dismouting.

Optionally, the port of the reducing guide ring extends outwards to form a convex edge. The structural design facilitates the aligned installation of the jet unpowered rotary nozzle.

Optionally, a spiral groove is formed in the inner wall of the reducing guide ring, and the spiral direction of the spiral groove is left-handed or right-handed. The structural design enables the spray water to generate a rotating centrifugal force, and the spray water has 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 purpose of this structural design is to further enhance the purpose of the rotational centrifugal force generated by the shower water.

One or more technical solutions in the jet-type unpowered rotary nozzle provided by the embodiment of the present invention have at least one of the following technical effects:

1. the inner wall of the top of the annular nozzle seat is movably sleeved with a reducing guide ring, and the outer wall of the reducing guide ring is in transition fit with the inner wall of the top of the annular nozzle seat. According to the utility model, the annular nozzle seat is detachably arranged at the water inlet end of the annular nozzle seat, and the variable-diameter flow guide rings with different specifications are selected according to the operation conditions of different cooling towers, so that the sectional area difference of the water inlet end and the water outlet end of the annular nozzle seat is adjusted, the pressure loss ratio is reduced, and the water sprayed on the rotary splashing module is enough to push the rotary splashing module to rotate, so that the sprayed water coverage surface is enlarged; the structural design has the advantages that the rotary splashing module is driven without external power, and the energy consumption is reduced.

2. Adopt the fan blade axle wears to locate on the axle sleeve, and the warp solid fixed ring makes a plurality of fan blades of fan blade axle one end can for the axle sleeve is adjusted along the axial direction, reaches and to realize according to the trickle flow condition, through the adjustment the fan blade for the distance of reducing water conservancy diversion ring reaches and changes the water yield, effectively improves because of the inhomogeneous condition of different flows easily cause the trickle.

3. The inner wall of the reducing guide ring is provided with a spiral groove, the rotation direction of the spiral groove is left-handed or right-handed, and the number of the spiral groove is at least one and the rotation directions are consistent. When the water flows into the spiral groove, the spiral groove is relatively reduced in diameter, so that the flow speed of the water flowing into the spiral groove is increased, the high-speed water flows to generate a rotating centrifugal force under the action of the spiral groove, and once the water is sprayed out of the spiral groove, the water has a wider diffusion area, so that the water can be uniformly sprayed.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described 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 based on these drawings without inventive exercise.

FIG. 1 is a schematic structural diagram of a jet-type unpowered rotary nozzle provided in an embodiment of the present invention;

fig. 2 is a schematic structural view of separation of the reducing guide rings provided in the embodiment of the present invention;

FIG. 3 is a schematic diagram of a separated structure of a rotary sputtering module according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 labeled A;

fig. 5 is a schematic view of another separated view structure of the reducing guide ring according to the embodiment of the present invention;

FIG. 6 is a partially enlarged view of FIG. 5 labeled B;

fig. 7 is a cross-sectional view of a variable diameter baffle ring according to an embodiment of the present invention;

wherein, in the figures, the respective reference numerals:

10-annular nozzle seat, 11-reducing guide ring, 111-convex edge, 112-spiral groove, 12-bracket arm, 13-shaft sleeve, 14-fixing ring, 20-rotary splashing module, 21-fan blade shaft and 22-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 or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the embodiments of the present invention, and should not be construed as limiting the utility model.

In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present 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," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

In one embodiment of the present invention, as shown in fig. 1 and 2, a spray type unpowered rotary nozzle is provided, which comprises an annular nozzle holder 10 with a thick bottom and a thin top, and a rotary spitting module 20 movably arranged on the annular nozzle holder. In the present invention, the annular nozzle holder 10 has an annular structure with a thick bottom and a thin top, and the top of the annular nozzle holder 10 is usually used as a water inlet end, and the bottom of the annular nozzle holder 10 is used as a water outlet end, so that when a water body passes through the annular nozzle holder 10, the water body acts on the rotating and splashing module 20 in a spraying state due to the difference in the sectional areas of the water inlet end and the water outlet end, and the rotation of the water body can be promoted to realize the spraying effect of the water body.

Furthermore, a reducing guide ring 11 is movably sleeved on the inner wall of the top of the annular nozzle seat 10. In this embodiment, the outer wall of the reducing guide ring 11 and the inner wall of the top of the annular nozzle seat 10 are in transition fit. The reducing guide ring 11 is detachably arranged at the water inlet end of the annular nozzle seat 10, and the requirement of convenience in dismounting the reducing guide ring 11 is met. Specifically, according to the operation conditions of different cooling towers, the variable-diameter guide rings 11 with different specifications are selected, so that the difference of the sectional areas of the water inlet end and the water outlet end of the annular nozzle seat 10 is adjusted, the pressure loss ratio is reduced, the water sprayed on the rotary splashing module 10 is enough to push the rotary splashing module to rotate, and the coverage surface of sprayed water is expanded; in addition, the rotary splashing module 20 is driven without external power, so that the purpose of reducing energy consumption is achieved, and the noise in the operation process of the jet type unpowered rotary nozzle can be further reduced due to the fact that no external power exists.

Furthermore, the reducing guide ring 11 is used as an installation part for installing the jet-type unpowered rotary nozzle on a cooling tower, and in order to facilitate the requirement of the opposite installation, a convex edge 111 is formed by extending outwards from the port of the reducing guide ring 11.

As shown in fig. 3, the rotary splashing module 20 penetrates from the bottom of the annular nozzle holder 10 and is disposed in the inner cavity of the annular nozzle holder 10, and the rotary splashing module 20 is axially telescopically adjusted relative to the annular nozzle holder 10 so as to control the water yield. Specifically, according to the water spraying flow rate, the water outlet amount can be changed by adjusting the distance between the rotary splashing module 20 and the reducing guide ring 11, so that the uneven water spraying condition can be improved.

As shown in fig. 4, a plurality of support arms 12 are arranged on the inner wall far away from the bottom of the annular nozzle holder 10 in an array manner, and one ends of the plurality of support arms 12 are all gathered inwards to form a shaft sleeve 13 for supporting the rotary spitting module 20; the rotary sputtering module 20 is coaxially arranged with the shaft sleeve 13, and a fixing ring 14 is arranged at a port of the shaft sleeve 13, so that the rotary sputtering module 20 can be adjusted in the axial direction relative to the shaft sleeve 13. In this embodiment, the rotary splashing module 20 includes a vane shaft 21 movably disposed in the shaft sleeve 13 and a plurality of vanes 22 mounted at one end of the vane shaft 21 in an array manner. Specifically, the number of the support arms 12 is three, the three support arms 12 are arranged on the shaft sleeve 13 in a radial array, and under the action of the fixing ring 14, the fan blade shaft 21 can be fixed relative to any position of the shaft sleeve 13, so that the position of the fan blade 22 relative to the reducing guide ring 11 can be adjusted, the water yield can be changed by adjusting the distance between the fan blade 22 and the reducing guide ring 11 according to the water pouring flow condition, and the condition that water pouring is uneven due to different flow rates can be effectively improved.

As shown in fig. 3, in order to reduce the influence of the fan blade self weight on the rotation of the fan blade, the back surface of the fan blade 22 adopts a hollow structure, and the fan blade 22 is lightened so that the shower water with the same flow rate is sprayed onto the fan blade 22 and has a faster rotating speed, thereby enhancing the uniformity of the shower water spraying to a certain extent.

As shown in fig. 5 and 6, the holder arm 12 has a conical structure, and a pointed end thereof is disposed toward the top of the annular nozzle holder 10. The purpose of this structural design is that the support arm 12 has a certain resistance to the water flowing through it, and by designing the support arm 12 as a cone structure, the resistance to the water is reduced.

As shown in fig. 7, a spiral groove 112 is formed on the inner wall of the reducing guide ring 11, and the spiral direction of the spiral groove is left-handed or right-handed. Preferably, the number of the spiral grooves 112 is at least one and the spiral directions are consistent. Specifically, when a water body enters the spiral groove 112, the spiral groove 112 is relatively opposite to a necking portion, so that the flow speed of the shower water after entering the spiral groove 112 is increased, the high-speed shower water generates a rotating centrifugal force under the action of the spiral groove 112, and once the shower water is sprayed out of the spiral groove 112, the shower water has a wider diffusion area, so that the shower water is more uniformly sprayed.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A jet unpowered rotary nozzle comprises an annular nozzle seat with a thick bottom and a thin top and a rotary splashing module movably arranged on the annular nozzle seat; the method is characterized in that: a reducing guide ring is movably sleeved on the inner wall of the water inlet end at the top of the annular nozzle seat to realize adjustment of the difference of the sectional areas of the water inlet end and the water outlet end of the annular nozzle seat, and the outer wall of the reducing guide ring is in transition fit with the inner wall at the top of the annular nozzle seat; the rotary splashing module penetrates through the water outlet end at the bottom of the annular nozzle seat and is arranged in the inner cavity of the annular nozzle seat, and the rotary splashing module is axially adjusted in a telescopic mode relative to the annular nozzle seat so as to control the water outlet quantity.

2. The ejector unpowered rotary nozzle of claim 1, wherein: a plurality of support arms are arranged on the inner wall far away from the bottom of the annular nozzle seat in an array mode, and one ends of the support arms are gathered inwards to form a shaft sleeve for supporting the rotary splashing module; the rotary sputtering module and the shaft sleeve are coaxially arranged, and a fixing ring is arranged at a port of the shaft sleeve, so that the rotary sputtering module can be adjusted in the axial direction relative to the shaft sleeve.

3. The ejector unpowered rotary nozzle of claim 2, wherein: the rotary splashing module comprises a fan blade shaft movably arranged in the shaft sleeve and a plurality of fan blades arranged at one end of the fan blade shaft in an array mode.

4. The ejector unpowered rotary nozzle of claim 3, wherein: the back of the fan blade is of a hollow structure.

5. The ejector unpowered rotary nozzle of claim 2, wherein: the support arm is in a cone structure, and the pointed cone end of the support arm faces the top of the annular nozzle seat.

6. The ejector unpowered rotary nozzle of claim 1, wherein: the port of the reducing guide ring extends outwards to form a convex edge.

7. The ejector unpowered rotary nozzle of claim 6, wherein: the inner wall of the reducing guide ring is provided with a spiral groove, and the spiral direction of the spiral groove is left-handed or right-handed.

8. The ejector unpowered 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.