Cooling tower nozzle with square spraying area

Abstract

A cooling tower spray head with a square spraying area relates to the technical field of cooling tower appliances and comprises a spray head shell, a transmission shaft is coaxially and rotatably mounted in the spray head shell, an impeller is fixedly connected onto the transmission shaft, and a splash disc with a Reuleaux triangle structure is eccentrically and fixedly connected to the lower end of the transmission shaft. The utility model solves the problems that in the prior art, the water spraying effect of a nozzle is basically a circular water ring, the water-free area of a water spraying area is reduced in the working process in a manner that the sprayed water rings are crossed and overlapped, and finally, water in a water distribution part area is concentrated in the water spraying area, and the part area is free of water or less in water; and the actual cooling effect of the filler is influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cooling tower utensil, concretely relates to the cooling tower shower head of square spray area. BACKGROUND

[0002] Mechanical ventilation counterflow type cooling tower several parts are very important, all can influence cooling tower's efficiency and use. Filler is the core component of cooling tower heat exchange, 70% of heat dissipation relies on filler to complete. But the premise that filler can exert effect is that water distribution is uniform, if water distribution is damaged or extremely uneven, filler efficiency is higher, and the efficiency cannot be exerted on the water of multiple places on the filler.

[0003] Splash device is to evenly spray circulating water on the top surface of filler, and the uniformity of water spraying of the splash device greatly influences the overall performance of the cooling tower. Good splash device can evenly spray circulating water on the top surface of filler, so that the filler can exert its due function. When the water is not evenly sprayed, some surfaces of the filler will not be watered, and this part of the filler will lose the heat dissipation effect. In addition, the air flow will go to the waterless place, so that the heat exchange is insufficient, and the efficiency of the cooling tower is reduced. Therefore, the main criterion for judging the quality of the splash device is the uniformity of the water density sprayed on the surface of the filler.

[0004] The prior art discloses a patent with publication number CN214276659U, which comprises a spray head body, the spray head body comprises a water storage cavity and a conical flow divider, an installation block is arranged on the upper side of the spray head body, the installation block and the water storage cavity are fixedly connected through a water bending pipe, an upper circular inner hole is formed in the installation block, a lower circular inner hole is communicated with the lower side of the upper circular inner hole, a rubber piston is arranged in the upper circular inner hole, a connecting rod is fixedly connected to the lower surface of the rubber piston, a drill bit is rotatably connected to the lower side of the connecting rod and penetrates the installation block, a impeller is fixedly connected to the outer circumferential surface of the drill bit, a spring is arranged in the upper circular inner hole and the lower circular inner hole and sleeved on the connecting rod, an L-shaped water pipe is fixed to the outer side of the installation block and communicated with the lower circular inner hole. The device can automatically dredge the blockage, thereby increasing the water distribution effect of the spray head body, ensuring the normal operation of the cooling tower and reducing the operation intensity of the operator.

[0005] With the use of the existing device, the deficiencies of the technology are gradually exposed, mainly in the following aspects:

[0006] At present, the water spraying effect of the spray head on the market is basically circular water ring. In the working process, the water ring is crossed and overlapped to reduce the waterless area of the water spraying area, so that the water spraying is concentrated in some areas and no water or little water in some areas, which affects the actual cooling effect of the filler.

[0007] From the above, the prior art in practical use obviously exists inconvenience and defects, so it is necessary to improve. Practical new type content

[0008] In view of the defects in the prior art, the utility model provides a cooling tower nozzle with square spraying area, to solve the problem that the water spraying effect of the nozzle in the prior art is basically circular water ring, and the water spraying area is reduced by the cross-over and overlapping mode of the water ring in the working process, finally leading to concentrated water spraying in some areas and no water or little water in some areas in the water spraying area, affecting the actual cooling effect of the filler.

[0009] To achieve the above object, the utility model provides the following technical scheme.

[0010] The cooling tower nozzle with square spraying area, comprising a nozzle shell, a transmission shaft is coaxially rotatably installed inside the nozzle shell, a impeller is fixedly connected to the transmission shaft, and a splash plate in the shape of a Lohr triangle is eccentrically fixed to the lower end of the transmission shaft.

[0011] As an optimized scheme, the splash plate is arranged in an arc shape, and the convex surface is arranged upward.

[0012] As an optimized scheme, the splash plate is surrounded by three layers of water flow gaps from the center to the outside, and each layer of water flow gap is surrounded by three circumferential water flow gaps.

[0013] As an optimized scheme, a fixed disc is fixedly arranged in the nozzle shell, and the upper end of the transmission shaft is rotatably installed at the center position of the fixed disc.

[0014] As an optimized scheme, four fan-shaped water passing holes are arranged around the fixed disc.

[0015] As an optimized scheme, a rotating hole is formed at the center position of the fixed disc, the upper end of the transmission shaft is rotatably installed in the rotating hole, and the upper end of the transmission shaft extends above the fixed disc and is fixedly connected to a limiting disc.

[0016] As an optimized scheme, a horizontal connecting section is fixedly connected to the lower end of the transmission shaft, a connecting shaft is vertically fixedly connected to the side end of the horizontal connecting section and is eccentrically arranged with the transmission shaft, and the center position of the upper surface of the splash plate is fixedly connected to the lower end of the connecting shaft.

[0017] As an optimized scheme, the impeller comprises three spiral-shaped blades arranged around the transmission shaft.

[0018] As an optimized scheme, a connecting sleeve is fixedly connected to the center positions of the four blades, and the connecting sleeve is fixedly sleeved on the connecting shaft.

[0019] As an optimized scheme, a stepped groove is arranged on the inner wall of the nozzle shell, and the outer ring of the fixed disc is clamped in the stepped groove.

[0020] Compared with the prior art, the utility model has the beneficial effects that:

[0021] The water splash plate structure of the Leluo triangle forms a square water spraying area.

[0022] The previous nozzle needs to overlap the water spraying area, and the water distribution uniformity is improved.

[0023] The water flow energy is converted into the circumferential motion of the transmission shaft by the impeller, and the water splash plate is driven to rotate eccentrically. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed in the specific embodiment or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual proportion.

[0025] Figure 1 The structure of the utility model is shown in the figure.

[0026] Figure 2 The structure of the utility model is shown in the figure.

[0027] In the figure: 1-nozzle shell, 2-water splash plate, 3-transmission shaft, 4-fixed disc, 5-fan-shaped water passage, 6-limiting disc, 7-impeller, 8-water flow gap, 9-horizontal connecting section, 10-connecting shaft. DETAILED DESCRIPTION

[0028] The embodiments of the technical scheme of the utility model will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the utility model, and therefore only serve as examples, and cannot limit the protection scope of the utility model.

[0029] As shown in Figure 1 and Figure 2 , the spray area is a square cooling tower nozzle, which comprises a nozzle shell 1, a transmission shaft 3 coaxially rotatingly installed inside the nozzle shell 1, an impeller 7 fixedly connected to the transmission shaft 3, and a water splash plate 2 in the form of a Leluo triangle eccentrically fixed to the lower end of the transmission shaft 3.

[0030] The water splash plate 2 is arranged in an arc shape with the convex surface upward, and the water flow flows in the designed flow direction.

[0031] The water splash plate 2 is surrounded by three layers of water flow gaps 8 from the center to the outside, and each layer of water flow gap 8 is surrounded by three water flow gaps 8 along the circumference.

[0032] The three-layer water flow gaps 8 on the splash plate 2 and the outer contour of the splash plate 2 divide the spray water into four layers of water channels, ensuring that there is no waterless area in the spray area.

[0033] A fixed disc 4 is fixed in the nozzle shell 1, and the upper end of the transmission shaft 3 is rotatably installed at the center position of the fixed disc 4.

[0034] Four fan-shaped water passing holes 5 are arranged around the fixed disc 4.

[0035] A rotating hole is formed at the center position of the fixed disc 4, the upper end of the transmission shaft 3 is rotatably installed in the rotating hole, and the upper end of the transmission shaft 3 extends above the fixed disc 4 and is fixedly connected with a limiting disc 6.

[0036] The lower end of the transmission shaft 3 is fixedly connected with a horizontal connecting section 9, the side end of the horizontal connecting section 9 is vertically fixedly connected with a connecting shaft 10 which is eccentrically arranged with the transmission shaft 3, and the center position of the upper surface of the splash plate 2 is fixedly connected with the lower end of the connecting shaft 10.

[0037] The impeller 7 includes three spiral-shaped blades arranged around the transmission shaft 3.

[0038] The impeller 7 leaves a certain gap with the inner wall of the nozzle shell 1.

[0039] The center positions of the four blades are fixedly connected with a connecting sleeve, and the connecting sleeve is fixedly sleeved on the connecting shaft 10.

[0040] A stepped groove is arranged on the inner wall of the nozzle shell 1, and the outer ring of the fixed disc 4 is clamped in the stepped groove.

[0041] The working principle of the device is as follows:

[0042] The splash plate 2 with the Lelos triangle structure forms a square water spraying area;

[0043] The previous situation that the spray head needs to overlap the water spraying area is avoided, and the water distribution uniformity is improved;

[0044] The water flow kinetic energy is converted into the circular motion of the transmission shaft 3 by the impeller 7, and then the splash plate 2 is driven to rotate eccentrically.

[0045] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application.

Claims

1. A cooling tower spray head having a square spray area, characterized by: The utility model provides a water-saving sprinkler, including the shower head casing (1), the transmission shaft (3) is rotationally installed inside coaxially, the impeller (7) is fixedly connected on the transmission shaft (3), the eccentricity of the lower end of transmission shaft (3) is fixedly connected with the splash plate (2) of Luer triangle structure.

2. The square-patterned spray cooling tower nozzle of claim 1, wherein: The splash plate (2) is arranged in an arc shape with the convex surface upward.

3. The square-patterned spray cooling tower nozzle of claim 1 wherein: The splash plate (2) is surrounded by three layers of water flow gaps (8) from the center to the outside, and each layer of water flow gap (8) is surrounded by three circumferential.

4. The square-patterned spray cooling tower nozzle of claim 1 wherein: The fixed disc (4) is fixed in the shower head casing (1), and the upper end of the transmission shaft (3) is rotationally installed on the center position of the fixed disc (4).

5. The square-patterned spray cooling tower nozzle of claim 4, wherein: The fixed disc (4) is surrounded by four fan-shaped water passing holes (5).

6. The square-patterned cooling tower spray head of claim 4, wherein: The fixed disc (4) is provided with a rotating hole in the center position, the upper end of the transmission shaft (3) is rotationally installed in the rotating hole, and the upper end of the transmission shaft (3) extends above the fixed disc (4) and is fixedly connected with the limiting disc (6).

7. The square-patterned spray cooling tower nozzle of claim 1 wherein: The lower end of the transmission shaft (3) is fixedly connected with a horizontal connecting section (9), the side end of the horizontal connecting section (9) is vertically fixedly connected with a connecting shaft (10) eccentrically arranged with the transmission shaft (3), and the upper surface of the splash plate (2) is fixedly connected with the lower end of the connecting shaft (10).

8. The square-patterned cooling tower spray head of claim 7, wherein: The impeller (7) includes three spiral-shaped blades arranged around the transmission shaft (3).

9. The square-patterned cooling tower spray head of claim 8, wherein: The center positions of the four blades are fixedly connected with a connecting sleeve, and the connecting sleeve is fixedly sleeved on the connecting shaft (10).

10. The square-patterned spray cooling tower nozzle of claim 4, wherein: The inner wall of the shower head casing (1) is provided with a stepped groove, and the outer ring of the fixed disc (4) is clamped in the stepped groove.

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