CN101893405B

CN101893405B - Water-distribution nozzle for cooling tower

Info

Publication number: CN101893405B
Application number: CN201010239111XA
Authority: CN
Inventors: 费笑勇; 史金华
Original assignee: NANJING DAYANG COOLING TOWER CO Ltd
Current assignee: NANJING DAYANG COOLING TOWER CO Ltd
Priority date: 2010-07-28
Filing date: 2010-07-28
Publication date: 2012-03-21
Anticipated expiration: 2030-07-28
Also published as: CN101893405A

Abstract

The invention provides a water-distribution nozzle capable of preventing an umbrella-shaped film and a hollow area therein from being formed and ensuring that spray is fine and even during water distribution, in order to improve the thermal performance (cooling effect) of a cooling tower. The water-distribution nozzle comprises a main pipe and more than two petal-shaped discs, wherein each petal-shaped disc is provided with a disc main body and petals evenly distributed at the periphery of the disc main body; a guiding hole is arranged at the center of the disc main body; the petal-shaped discs are located below the main pipe in a way that the petal-shaped discs are co-axial with the main pipe; and each two vertically adjacent petal-shaped discs meet the following conditions: the outer diameter of the petals of the upper petal-shaped disc > the outer diameter of the petals of the lower petal-shaped disc > the outer diameter of the disc main body of the upper petal-shaped disc > the outer diameter of the disc main body of the lower petal-shaped disc > the inner meter of the guiding hole of the upper petal-shaped disc > the inner diameter of the guiding hole of the lower petal-shaped disc.

Description

Water-distribution nozzle for cooling tower

Technical field

The present invention relates to a kind of tubular type water-distribution nozzle that is used for counterflow cooling tower.

Background technology

The tubular type water-distribution nozzle of counterflow cooling tower use at present generally comprises a main body pipe and a flat splash box that is arranged on main body pipe below.We know that water-distribution nozzle is the important core part in the cooling Tata core components, and the height of the thermal performance efficient of cooling tower has significant relationship with the performance of water-distribution nozzle water spray; Cloth quality quality directly influences the thermal performance of cooling tower.

But existing water-distribution nozzle, the splash box plane is an entity, can produce obvious umbrella during water distribution, and the hollow area is bigger, and the globule is not of uniform size, and water distribution is inhomogeneous, influences cooling tower thermal performance (good cooling results).

Summary of the invention

It is tiny evenly not have umbrella, no hollow, water spray when the purpose of this invention is to provide a kind of water distribution, to improve the water-distribution nozzle of cooling tower thermal performance (cooling effect).

This water-distribution nozzle for cooling tower comprises a main body pipe, and it also comprises plural petal disc; Each petal disc has a main body panel and the petal that is distributed on the main body panel periphery, and the central part of main body panel has pod apertures; Each petal disc is positioned at main body pipe below, and coaxial with the main body pipe; Adjacent two petal discs up and down satisfy: the pod apertures internal diameter of the petal disc of the pod apertures internal diameter of the petal disc of the main body panel external diameter of the petal disc of the main body panel external diameter of the petal disc of the petal external diameter of the petal disc of the petal external diameter of top petal disc＞following＞top＞following＞top＞following.

This water-distribution nozzle also can be described as the tubular type multilayer petal type disc shower nozzle that dabbles; Its beneficial effect: water flows down in the main body pipe; Be flushed to uppermost petal disc earlier; The pod apertures of part current petal disc through the top flows downward, and a part of current flow downward through the petal of uppermost petal disc and the hydrophobic gap between the petal.The present invention is because adjacent two petal discs up and down satisfy the size relationship of characteristics; Make adjacent two petal discs up and down have complementarity in radial direction; Make water distribution not have umbrella, no hollow, water spray is tiny evenly, has guaranteed cooling tower thermal performance (cooling effect).

Above-mentioned shower nozzle is seen from top to bottom, and each petal becomes dextrorotation to be arranged on the main body panel.The petal that dextrorotation is arranged makes that flowing water flow has the dextrorotation phenomenon from the top down, can effectively prevent the generation of umbrella.

The taper high in the middle of above-mentioned shower nozzle, petal disc are, that periphery is low is so that the current on the petal disc can flow to the periphery of petal disc smoothly.

Above-mentioned shower nozzle, the outer contour of petal is a smooth transition curve, so that water distribution is more continuously, evenly, no hollow phenomenon.

Above-mentioned shower nozzle, the taper that pod apertures is big up and small down.Preferably, the upper end of pod apertures is up big and down small horn mouth.The taper that the endoporus of main body pipe is big up and small down.

Above-mentioned shower nozzle is provided with a sleeve pipe that becomes to removably connect with the main body pipe in the endoporus of main body pipe.Like this, can change the sleeve pipe of different interior hole sizes according to different discharge.

Description of drawings

Fig. 1 is the dabble sketch map of shower nozzle of tubular type multilayer petal type disc.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is the D-D profile of Fig. 2.

Fig. 4 is the B-B cutaway view of Fig. 1.

Fig. 5 is the E-E profile of Fig. 4.

Fig. 6 is the C-C cutaway view of Fig. 1.

Fig. 7 is the F-F profile of Fig. 6.

Fig. 8 is the enlarged drawing of a kind of sleeve pipe among Fig. 1.

Fig. 9 is the enlarged drawing of the another kind of sleeve pipe among Fig. 1.

Figure 10 is the upward view of Fig. 9.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described further.

Referring to the tubular type multilayer petal type disc shown in Figure 1 shower nozzle 10 that dabbles, have a main body pipe 4,

sleeve pipe

5 and 1,2,3 and two dowels 6 of top-down three petal discs.A sleeve pipe 5 that becomes to removably connect with the main body pipe is set in the endoporus of main body pipe 4.Sleeve pipe 5 can be changed, referring to Fig. 8,10.For the sleeve pipe among Fig. 8, the taper that the endoporus of sleeve pipe is big up and small down, its upper end has the flange 51 of outside turnover, and flange 51 is connected to the recesses of main body pipe 4 upper ends.Difference for the sleeve pipe of the sleeve pipe among Figure 10 and Fig. 8 is: the endoporus aperture of the sleeve pipe among Figure 10 is less; The outer wall of the sleeve pipe in Figure 10 has four reinforcements 52.

Each petal disc has a

main body panel

7 and 6 petals 8 that are distributed on the main body panel periphery, and the outer contour of petal is a smooth transition curve.On look down, 6 petals become dextrorotation to be arranged on the main body panel.Be provided with hydrophobic gap between petal and the petal, guarantee that water distribution is tiny evenly.The central part of main body panel all has pod apertures 9.The taper that pod apertures 9 is big up and small down; The upper end of pod apertures is up big and down small horn mouth.The taper high in the middle of petal disc is, that periphery is low.Each petal disc is positioned at main body pipe below, and coaxial with the main body pipe.Referring to Fig. 2-7; The petal external diameter of three

petal discs

1,2,3 is respectively D, D1, D2, and main body panel 7 external diameters of three

petal discs

1,2,3 are respectively that pod apertures 9 maximum inner diameters of

three

petal discs

1,2,3 are respectively

Article two, dowel 6 links into an integrated entity main body pipe 4, top-down three

petal discs

1,2,3, and is injection molded with high-quality engineering plastics, and the working condition that can satisfy high temperature, cold fully uses down.Article two, the cross section of dowel 6 becomes flat ellipse taper, and with pod apertures axis symmetry.

Get in the sleeve pipe of water by the shower nozzle top, quicken vertical drop to petal disc through the head natural gravity.Advantage of the present invention:

1, the water spray angle is big;

2, water droplet is tiny, no umbrella;

3, water distribution is even, no hollow phenomenon;

4, pressure of supply water is low;

5, be difficult for stopping up;

6, sturdy and durable;

7, according to the replaceable sleeve pipe of discharge;

8, need not keep in repair.

Claims

1. water-distribution nozzle for cooling tower comprises a main body pipe, it is characterized in that: further comprising three petal discs; Each petal disc has a main body panel and the petal that is distributed on the main body panel periphery, and the central part of main body panel has pod apertures; Each petal disc is positioned at main body pipe below, and coaxial with the main body pipe; Adjacent two petal discs up and down satisfy: the pod apertures internal diameter of the petal disc of the pod apertures internal diameter of the petal disc of the main body panel external diameter of the petal disc of the main body panel external diameter of the petal disc of the petal external diameter of the petal disc of the petal external diameter of top petal disc＞following＞top＞following＞top＞following;

See that from top to bottom each petal becomes dextrorotation to be arranged on the main body panel; The taper high in the middle of petal disc is, that periphery is low; The outer contour of petal is a smooth transition curve; The taper that pod apertures is big up and small down; The upper end of pod apertures is up big and down small horn mouth.

2. shower nozzle according to claim 1 is characterized in that: the taper that the endoporus of main body pipe is big up and small down.

3. shower nozzle according to claim 1 is characterized in that: a sleeve pipe that becomes to removably connect with the main body pipe is set in the endoporus of main body pipe.