TW201714672A - Diffuser element for irrigation device - Google Patents

Abstract

The invention relates to a diffuser element (1) for an irrigation device, such as a spray gun, a spray nozzle, a spray lance, or a sprinkler, designed to be used in such an irrigation device and comprising a passage (4) for a liquid flow, which flows through said passage (4) in a defined flow direction (FD), and a stabilization element, which is arranged in front of the passage (4) when viewed in the flow direction (FD), wherein the stabilization element reduces turbulence in the liquid flow.

Description

Diffuser unit for sprinkler systems

The present invention relates to a diffuser component for improving the function of a sprinkler device, and to a sprinkler device comprising the diffuser component.

Sprinkler systems such as water jets, nozzles, pouring rods or sprinklers are capable of ejecting a liquid jet having a relatively high pulse energy, such as a cleaning beam. This liquid jet is ejected in the form of a single beam with the desired maximum pulse energy. High pulse energy enables a significant cleaning effect when the liquid jet hits the surface to be cleaned. Such liquid jets or cleaning beams can suffer from effects that cause the liquid jet to disperse after exiting, while causing a reduction in the pulse energy of the ejected or ejected liquid jet.

It is an object of the invention to reduce or avoid the effects, i.e. the effects of dispersion of the liquid jet after it has been ejected from the sprinkler.

The object of the invention is achieved by a diffuser component for a sprinkler device such as a water jet, a nozzle, a casting rod or a sprinkler, which is designed to be mounted into the sprinkler, including a fluid for a liquid flow And a stabilizing member through which the liquid stream flows in a prescribed flow direction, the stabilizing member being disposed upstream of the passage in the flow direction, wherein the stabilizing member reduces turbulence in the liquid flow.

The use of stabilizing members creates laminar flow downstream of the stabilizing member and upstream or within the passage to reduce turbulence in the liquid stream. This reduces or completely prevents dispersion of the liquid bundle as it leaves the sprinkler. Furthermore, it is advantageously possible to reduce the required installation space inside the sprinkler system. If the stabilizing member is placed upstream of the passage, the length of the passage can also be reduced. Therefore, the total installation size of the diffuser components can be kept small, and the total installation size of the sprinkler device can be kept small.

In a further advantageous refinement of the invention, the stabilizing element is provided as a filter element, and/or the passage is provided by a particularly cylindrical and/or tubular passage member, the diffuser element being designed to direct the liquid Flow through the filter and passage components.

The reduction in turbulence and the generation of laminar flow are advantageously achieved by the use of filter elements. The cylindrical or tubular passage member allows the flow of liquid to become uniform after flowing through the filter member. It is particularly advantageous to direct or force the flow of liquid completely through the filter element and the passage member. In this case, the filter element can be designed rigidly or flexibly.

According to a further advantageous embodiment of the invention, the passage member forms an input opening of the passage, in particular the input opening is formed by a flange of the passage member, wherein the input opening is shaped like a funnel, in particular Formed by providing an input edge to the passage member, the input edge circumferentially surrounding the input opening. Preferably, the input edge has a rounded radius having a radius of at least 0.5 times the diameter of the passage.

The laminar liquid flow produced by stabilizing the component can be introduced into the passage in a particularly advantageous manner, if the input opening of the passage is funnel shaped and/or has an input edge, the input edge comprising a rounding, the rounding The radius is at least 0.5 times the diameter of the passage. This shape of the input edge allows the flow of liquid to enter the passage without creating a turbulent partial flow.

In a further advantageous refinement of the invention, the passage member forms an output opening, wherein an output edge circumferentially surrounds the output opening, the output edge forming a stepped edge, the stepped edge substantially surrounding the vertical Preferably, the output edge is formed into a tapered output funnel in the direction of flow of the passage, and/or the output edge.

This output opening prevents interruption of the flow of liquid as it exits the passage. In particular, the output edge can have substantially sharp edges, thereby further reducing the risk of interruption.

According to a further advantageous embodiment of the invention, the flow cross section of the passage is substantially smaller than the flow cross section of the inlet communicating with the passage, in particular the change from the flow cross section of the inlet to the flow cross section of the passage is substantially continuous of.

This design further reduces the risk of turbulence between the stabilizing component and the passage component, particularly as the liquid stream enters the passage.

In a further advantageous embodiment of the invention, the stabilizing element comprises a flat body which is arranged in a position substantially perpendicular to the flow direction, wherein a plurality of perforations for the passage of liquid are provided on the flat body The diameter of these perforations is in particular between about 0.4 mm and about 0.6 mm, preferably 0.5 mm.

The stabilizing or filtering element with a flat body reduces turbulence in the liquid flow in a very efficient manner, the flat body being placed in a position perpendicular to the flow direction and being provided with the wearing as described above hole. The liquid stream is divided into a plurality of smaller streams, thereby reducing turbulence. For example, about 100 perforations are distributed along the flat body, particularly along the tapered region of the flat body, which has a positive stabilizing effect on the liquid flow. Furthermore, the flat body can be provided, for example, in the form of a diaphragm.

According to a further advantageous embodiment of the invention, the flat body of the stabilizing element substantially covers and extends along the flow cross section of the passage, in particular the flat body of the stabilizing element extends along the entire flow cross section of the inlet .

In this way, the amount of liquid passing through the flat body is made larger than the amount of liquid passing through the passage at the same time. Thereby an advantageous pressure condition is achieved at the input opening of the passage, which allows the liquid to enter the passage under laminar flow conditions.

According to a further advantageous embodiment of the invention, the stabilizing elements are arranged in a manner relative to the passage, wherein a plurality of perforations are arranged on the flat body in such a way that some of the perforations are arranged in the region of the flat body covering the passage, Some of the perforations are arranged in a region of the flat body that is radially spaced from the passage.

Stabilizing components can be exposed to dirt or particles in the incoming liquid. This will block the stabilizing components and thus hinder smooth flow. Providing the perforations enables a self-cleaning effect on the stabilizing members, thereby freely rinsing the stabilizing members during operation.

A further advantageous design of the invention comprises a wall arranged concentrically around the passage member, and a support member which securely connects the passage member to the wall, in particular a portion of the passage member. And projecting axially opposite to the direction of flow, wherein the support member is arranged in a liquid-tight manner and is suitably arranged such that a flow of liquid flowing in via the inlet is forced into the passage.

In this way, a firm and rigid structure is formed which allows the diffuser member to be liquid-tightly fixed inside the sprinkler. The ribs formed by the diffuser members can further reduce turbulence and promote laminar flow formation.

According to a further advantageous embodiment of the invention, a secondary chamber is formed as an annular chamber which encloses the input opening of the passage, in particular the secondary chamber at the support part and/or the wall and/or the flange And/or formed between the filter members, preferably the flange separates the secondary chamber from the passage.

This design further improves the self-cleaning effect. The stabilizing components are cleaned during operation, wherein the perforations are continuously flushed.

In a further advantageous embodiment of the invention, the stabilizing element has a central conical region and a lateral planar region, in particular the lateral planar region encircles the conical region, the stabilizing component, in particular The flange is contacted by the central tapered region and/or the upper region of the tapered region projects counter to the flow direction.

The stabilizing member formed in this way has a very advantageous effect on the reduction of turbulence. In addition, the lateral planar area can be used to secure the stabilizing component to the wall or to another portion of the sprinkler system. If the conical region projects counter to the direction of flow, the liquid flow will be advantageously guided.

According to a further advantageous embodiment of the invention, some of the perforations are provided in the region of the flat body at least partially constraining the secondary cavity.

Thereby the secondary chamber is in fluid tight communication with the inlet of the diffuser member and with the input opening of the passage. The secondary cavity can thus be enhanced to help reduce turbulence.

Further advantageously, the stabilizing member is made of plastic, the plastic is selected from the group consisting of polypropylene or polyoxymethylene, and/or the passage member and/or the wall and/or the support member are integrally formed from the plastic material acrylonitrile-butadiene-benzene. Ethylene is formed. Alternatively or additionally, the passage member and/or the wall and/or the support member may be formed from a plastic material polypropylene.

Stabilizing parts made of polypropylene or polyoxymethylene have elastic properties. For example, such a stabilizing member can be fixed to the wall or to another component of the diffuser member by utilizing said elastic properties. If the passage member or wall or support member is made of acrylonitrile butadiene styrene, the diffuser member is very durable and can be inactively coupled to the sprinkler.

In a further advantageous refinement of the invention, the stabilizing element is firmly connected or connected to the wall by means of a latching mechanism, in that the stabilizing element is moved in the flow direction, or the stabilizing element is glued or welded to the wall, or The stabilizing member is formed integrally with the wall.

The use of a latching mechanism allows the stabilizing components to be quickly replaced in the event of damage. Bonding or welding enables the stabilizing members and their joints to be made of different materials, but they are not releasably connected. Fabrication in one piece allows for simple fabrication of the diffuser components. In general, the connection between the stabilizing element and its joint should be designed in a liquid-tight manner.

The object of the invention is also achieved by a sprinkler device with a diffuser component according to the invention.

1‧‧‧Diffuser parts

2‧‧‧ wall

3‧‧‧Access components

4‧‧‧ pathway

5‧‧‧ input edge

6‧‧‧ Output edge

7‧‧‧Support parts

8‧‧‧stop surface

9‧‧‧Filter components

10‧‧‧ secondary cavity

12‧‧‧ Sealing lip

13‧‧‧ vacancies

14‧‧‧Conical area

15‧‧‧planar area

16‧‧‧ rib

17‧‧‧ Entrance

18‧‧‧ Input openings for access components

19‧‧‧Flange

20‧‧‧Perforation

21‧‧‧ Output opening of the passage member

22‧‧‧stepped edges

100‧‧‧ nozzle

101‧‧‧Flat limited parts

102‧‧‧Liquid supply pipeline

103‧‧‧beam supply pipeline

104‧‧‧Fixed structure

d _path ‧ ‧ diameter diameter

d _entrance ‧ ‧ diameter of the entrance

FD‧‧‧flow direction

An advantageous design of the invention will be described with reference to the drawings.

Figure 1 is a cross-sectional view of a nozzle including a diffuser member; Figure 2 is a cross-sectional view of the diffuser component that is discrete or removed from the nozzle.

The first figure shows a nozzle 100 with a plane defining member 101, and a pressure-applied liquid such as water can be supplied via a liquid supply conduit 102, which can be connected to, for example, a conventional water supply mechanism. The nozzle 100 can be used, for example, for spraying or pouring a garden, wherein water is sprayed out with the separated water droplets by means of the plane-defining component 101, either in a distributed manner or in a rainy manner, in order to achieve a large area, for example, with a small pulse energy.

The nozzle 100 is arranged such that the water supply mechanism can be switched from the liquid supply conduit 102 to the beam supply conduit 103. The diffuser member 1 is fixed in the nozzle 100 by means of a fixed structure 104 so that the liquid conveyed through the beam supply conduit 103 reaches the inlet 17 and fills the inlet 17. After the inlet 17, the liquid flows through the filter member 9, which serves as a stabilizing member of the liquid flow, and then the liquid flow enters the passage 4, which is formed by the cylindrical tubular passage member 3.

The diffuser member 1, that is, the filter member 9 and the passage member 3, determines the shape of the liquid beam exiting the passage 4 in accordance with the pressure at which the liquid is delivered to the inlet 17. This relationship is described in detail below.

FIG. 2 shows the diffuser member 1 separated from the nozzle 100. The diffuser component 1 has a cylindrical wall 2 in the form of a sleeve for use as a support and/or retaining structure.

A plurality of ribs 16 are circumferentially disposed on the wall 2 and project radially outwardly away from the wall 2. The at least one rib 16 includes a stop surface 8 that can serve as a support surface for the planar defining member 101, for example.

These ribs 16 form a plurality of recesses 13 or undercuts for securing the diffuser member 1 in or on the nozzle 100. These ribs 16 and/or recesses 13 are for example part of a snap-on connection or a snap-on connection or a threaded connection.

A sealing lip 12 is provided on an area of the wall 2, the corresponding contact area of the nozzle 100 being situated opposite the sealing lip 12, or the sealing lip 12 sealingly abuts the contact area if the diffuser part 1 is inserted Go to the nozzle 100. In this case, the sealing lip 12 seals the connection between the nozzle 100 and the diffuser member 1 to the liquid. The sealing lip 12 can here be integrated with the diffuser component 1 It may be formed, or it may be fixed as an additional separate component, for example as an O-ring. Furthermore, the diffuser component 1 comprises a passage member 3 in the form of a cylindrical tube. The passage member 3 is fixed at a position such that the passage 4 formed by the passage member 3 extends parallel to the desired flow direction FD. In particular, the passage member 3 is fixed to the wall 2 by the support member 7, wherein the support member 7 closes or seals the space between the wall 2 and the passage member 3 in an appropriate manner, so that between the wall 2 and the passage member 3 There is no liquid flow and all of the liquid is forced through the passage 4.

The function of the diffuser member 1 in the nozzle 100 will be described below.

The nozzle 100 can be operated with a cleaning function, and the nozzle can eject a cleaning beam for the cleaning function. Such a cleaning beam should have a high pulse energy and, as a result, have a large range. The cleaning beam is produced by the use of a passage 4, wherein the maximum pulse energy available for the cleaning beam depends on the pulse energy that can be supplied by the supply of liquid. The beam shape of the cleaning jet inside the nozzle 100 requires a portion of the energy of the incoming supply liquid. This part of the energy is lost and thus does not contribute to the pulse energy of the cleaned beam that is emitted.

Most of the lost energy is consumed due to turbulent flow occurring inside the nozzle 100. The diffuser member 1 is capable of reducing these turbulent flows so that the pulse energy saved can contribute to the pulse energy of the emitted cleaned beam, thereby increasing the pulse energy and the range of the cleaning beam.

The filter member 9 includes a flat body that is disposed at a position substantially perpendicular to the flow direction FD. The flat body can have a plurality of perforations 20 for allowing liquid to pass through. The diameter of these perforations 20 can here be between 0.4 mm and 0.6 mm, in particular 0.5 mm. The flat body can here have, for example, about 100 perforations.

The filter element 9 can here be suitably arranged such that the flat body covers at least one flow cross section of the passage 4 and at the same time mainly extends along the entire flow cross section of the inlet 17 . The perforations 20 are thus arranged in the region of the flat passages of the flat passages 4 , but are also provided in the region of the flat body which is arranged radially apart or offset from the passage 4 .

The filter element 9 has a substantially conical region 14 and a lateral planar region 15. The planar region 15 formed on the side surrounds the substantially conical region 14 in a suitable manner so that the tapered region 14 contacts the flange 19 of the passage member 3. The filter member 9 is suitably positioned such that the tip end of the tapered region 14 projects counter to the flow direction FD.

In order to further improve the characteristics of the cleaning beam, the passage member 3 forms an input opening 18 and an output opening 21. The flange 19 is formed through the input opening 18. The input opening 18 can be configured in the shape of a funnel and additionally or alternatively configured such that the passage member 3 surrounds the input opening 18 circumferentially with the input edge 5 . The input edge 5 is substantially rounded with a certain radius. The radius here can be at least 0.5 times the diameter of the passage 4 (d- _passage ).

The output opening 21 forms an output edge 6 that surrounds the input opening 18 in a surrounding manner. The output edge 6 forms a stepped edge 22 and a substantially conical output funnel that substantially surrounds the flow direction FD perpendicular to the passage 4. The edges of the output opening 21 are provided as sharp edges to prevent interruption of the liquid flow or cleaning beam when exiting through the output opening 21.

The filter element 9 can be snapped into the cartridge, which can be arranged in the wall 2 of the diffuser component 1. Here, the filter member 9 is arranged upstream of the passage member 3 in the flow direction, which ensures the fixing of the filter member 9, because when the liquid flows in the flow direction, the filter member 9 is pressed against the wall 2 and/or On the passage member 3 and/or the flange 19.

1‧‧‧Diffuser parts

3‧‧‧Access components

4‧‧‧ pathway

9‧‧‧Filter components

17‧‧‧ Entrance

100‧‧‧ nozzle

101‧‧‧Flat limited parts

102‧‧‧Liquid supply pipeline

103‧‧‧beam supply pipeline

104‧‧‧Fixed structure

d _path ‧ ‧ diameter diameter

d _entrance ‧ ‧ diameter of the entrance

FD‧‧‧flow direction

Claims (15)

A diffuser component (1) for a sprinkler device such as a sprinkler, nozzle, pouring spout or sprinkler, designed to be mounted into the sprinkler, comprising a passage (4) for a liquid flow and a a stabilizing member through which the liquid flow flows in a prescribed flow direction (FD), the stabilizing member being disposed upstream of the passage (4) in the flow direction (FD), wherein the stabilizing member reduces the liquid Turbulence in the flow. The diffuser component (1) according to claim 1, wherein the stabilizing component is provided as a filter component (9), and/or the passage (4) is particularly cylindrical and/or A tubular one-way member (3) is provided, wherein the diffuser member (1) is designed to direct the flow of liquid through the filter member (9) and the passage member (3). A diffuser member (1) according to claim 2, wherein the passage member (3) forms an input opening (18) of the passage (4), in particular, the input opening (18) Forming a flange (19) of the passage member (3), wherein the input opening (18) is formed in a funnel shape, in particular by providing an input edge (5) to the passage member (3). The input edge surrounds the input opening (18). Preferably, the input edge (5) has a rounding radius which is at least 0.5 times the diameter of the passage (4) (d _path ) . The diffuser member (1) according to claim 2, wherein the passage member (3) forms an output opening (21), wherein an output edge (6) surrounds the output An opening (21), the output edge forming a stepped edge (22) substantially surrounding a flow direction (FD) perpendicular to the passage (4), and/or the output edge ( 6) It is preferred to form a tapered output funnel. The diffuser member (1) according to any one of claims 1 to 4, wherein the passage (4) has a flow cross section substantially smaller than an inlet communicating with the passage (4) ( The flow cross section of 17), in particular, the change from the flow cross section of the inlet (17) to the flow cross section of the passage (4) is substantially continuous. The diffuser member (1) according to any one of the preceding claims, wherein the stabilizing member comprises a flat body disposed substantially perpendicular to a flow direction (FD) a position in which a plurality of perforations for allowing liquid to pass are formed in the flat body, and the diameter of the perforations is particularly between 0.4 mm and 0.6 mm, preferably 0.5 mm. A diffuser member (1) according to claim 6 wherein the flat body of the stabilizing member substantially covers and extends along a flow cross section of the passage (4), in particular The flat body of the stabilizing member extends along the entire flow cross section of the inlet (17). The diffuser member (1) according to claim 7, wherein the stabilizing member is arranged in a manner relative to the passage (4), wherein the perforations are arranged on the flat body, in this way Some perforations are arranged in the region of the flat body covering the passage (4), while some perforations are arranged in the region of the flat body radially spaced from the passage (4). The diffuser member (1) according to any one of claims 1 to 8, further comprising a wall (2) concentrically arranged around the passage member (3), and a support member ( 7) the support member securely connects the passage member (3) to the wall (2), in particular such that a portion of the passage member (3) forms the flange (19) and is axially opposite to the flow direction The grounding member, wherein the support member (7) is arranged in a liquid-tight manner and is suitably arranged such that a flow of liquid flowing in through the inlet (17) is forced into the passage (4). The diffuser member (1) according to any one of claims 3 to 9, wherein a secondary chamber (10) is formed as an annular chamber that surrounds the passage (4) The input opening (18), in particular, the secondary chamber (10) between the support member (7) and/or the wall (2), the flange (19) and the filter member (9) Formed, preferably, the flange (19) separates the secondary chamber (10) from the passage (4). The diffuser member (1) according to any one of claims 1 to 10, wherein the stabilizing member has a central tapered region (14) and a lateral planar region (15), In particular, the lateral planar region (15) circumferentially surrounds the tapered region (14), wherein the stabilizing member contacts the flange (19), in particular by means of the tapered region (14), and/or The upper region of the tapered region (14) projects counter to the flow direction (FD). The diffuser member (1) according to any one of claims 6 to 11, wherein the perforations are disposed at least partially restricting the secondary cavity (10) of the flat body. In the area. The diffuser member (1) according to any one of the preceding claims, wherein the stabilizing member is made of a plastic selected from the group consisting of polypropylene (PP) or polyoxymethylene. (POM), and/or the passage member (3) and/or the wall (2) and/or the support member (7) It is integrally formed of a plastic material of acrylonitrile-butadiene-styrene (ABS) and/or polypropylene (PP). The diffuser member (1) according to any one of the preceding claims, wherein the stabilizing member is firmly connected or connected to the wall (2) by means of a latching mechanism. The stabilizing member moves in the flow direction (FD), or the stabilizing member is bonded or welded to the wall (2), or the stabilizing member is integrally formed with the wall (2). A sprinkler device comprising the diffuser member (1) according to any one of claims 1 to 14.