A bifurcated labyrinth flow passage emitter with dual outlets

Abstract

The utility model discloses a kind of double-outlet bifurcated labyrinth flow passage irrigator, including the water inlet pipe being connected with drip irrigation pipe, the water inlet pipe is connected with the water inlet of irrigator body, the water inlet output end both sides are respectively connected with a bifurcated labyrinth flow passage input end, the bifurcated labyrinth flow passage output end is connected with water outlet pipe through water outlet;The flow passage of the utility model's irrigator is bifurcated labyrinth flow passage, hydraulic performance is excellent, with pressure compensation performance, flow passage is divided into main flow passage and bifurcated flow passage, anti-blocking performance is better, and irrigator is provided with left and right two water outlets, can simultaneously irrigate two rows of crops;Secondly, irrigator structure is simple, convenient to prepare, low in cost, it is convenient for large-scale production, more suitable for large area, long distance drip irrigation operation.

Description

Technical Field

[0001] This utility model relates to the field of irrigation device design technology, specifically to a dual-outlet bifurcated labyrinth channel irrigation device. Background Technology

[0002] Irrigation water is becoming increasingly scarce in arid and semi-arid regions of China. Micro-irrigation, which allows for timely and appropriate irrigation of crop roots, effectively reduces surface water evaporation and greatly improves irrigation water use efficiency, thus becoming one of the effective ways to alleviate this problem. The emitter is the most critical component of a micro-irrigation system; its structure, hydraulic performance, and quality directly affect the uniformity and reliability of the irrigation system. In recent years, as a core component of drip irrigation systems, the emitter has become a key focus of research on drip irrigation technology in various countries.

[0003] The flow channels of existing drip irrigation emitters typically employ a labyrinthine design, which primarily uses complex boundary conditions to depressurize the water flow. These boundary conditions are usually formed by straight lines and circular arcs to achieve better turbulence depressurization. However, this design results in poor anti-clogging performance and is not suitable for large-area, long-distance drip irrigation operations. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a dual-outlet bifurcated labyrinth channel water emitter that is suitable for large-area, long-distance drip irrigation operations and improves anti-clogging performance.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a dual-outlet bifurcated labyrinth channel water irrigator, including an inlet pipe connected to a drip irrigation pipe, the inlet pipe being connected to the inlet of the water irrigator body, the two sides of the inlet outlet being respectively connected to an inlet of a bifurcated labyrinth channel, and the outlet of the bifurcated labyrinth channel being connected to an outlet pipe through an outlet.

[0006] Preferably, the bifurcated labyrinth flow channel includes a main flow channel located within the water dispenser body, and multiple bifurcated flow channels are continuously arranged on the main flow channel.

[0007] Preferably, the main flow channel has a straight structure, and the branching flow channel has an auricle-shaped structure.

[0008] Preferably, the branching channel includes an inclined channel that forms a certain angle with the main channel, and the inclined channel is connected to the main channel through a curved and rotating channel.

[0009] Preferably, the angle between the inclined flow channel and the main flow channel is an acute angle, and the angle between the curved and rotating flow channel and the main flow channel is an obtuse angle.

[0010] Preferably, the curved rotary flow channel has a semi-circular flow channel structure.

[0011] Preferably, the inlet and outlet of the bifurcation channel have a rounded chamfered structure.

[0012] Preferably, the number of branched channels in the two branched labyrinth channels is the same for each other.

[0013] Preferably, the two outlet pipes are arranged symmetrically with the location of the inlet pipe as the center line.

[0014] The beneficial effects of this utility model are:

[0015] This utility model provides a dual-outlet bifurcated labyrinth channel irrigation emitter with excellent anti-clogging performance and reduced installation costs. First, the emitter's channel is a bifurcated labyrinth channel, which has excellent hydraulic performance and pressure compensation capabilities. The channel is divided into a main channel and bifurcated channels, resulting in good anti-clogging performance. Furthermore, the emitter has two outlets on the left and right sides, which can irrigate two rows of crops simultaneously. Second, the emitter has a simple structure, is easy to manufacture, and has a low cost, making it suitable for large-scale production and more applicable to large-area, long-distance drip irrigation operations. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a dual-outlet bifurcated labyrinth flow channel water emitter.

[0017] Figure 2 This is a schematic diagram of the internal structure of a dual-outlet bifurcated labyrinth flow channel water emitter.

[0018] Figure 3 for Figure 2 A magnified schematic diagram of the bifurcated labyrinth flow channel;

[0019] Figure 4 This is a schematic diagram of a dual-outlet bifurcated labyrinth channel water emitter installed after a drip irrigation pipe.

[0020] Figure 5 This is a flow velocity distribution diagram in the irrigation channel under irrigation conditions.

[0021] Figure 6 The diagram shows the movement trajectory of sediment particles in unoptimized and optimized flow channels under irrigation conditions.

[0022] Figure 7 The pressure-flow rate curves for each outlet of the unoptimized and optimized bifurcated labyrinth flow channel under irrigation conditions are shown. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Example 1: As Figures 1 to 4As shown, a dual-outlet bifurcated labyrinth channel irrigation device includes an inlet pipe 1 connected to a drip irrigation pipe 4. The inlet pipe 1 is connected to the inlet 2.1 of the irrigation device body 2. The two sides of the outlet end of the inlet 2.1 are respectively connected to the input end of a bifurcated labyrinth channel 2.2. The output end of the bifurcated labyrinth channel 2.2 is connected to the outlet pipe 3 through the outlet 2.3.

[0025] Preferably, the branched labyrinth flow channel 2.2 includes a main flow channel 2.2.1 disposed within the water emitter body 2, and a plurality of branched flow channels 2.2.2 are continuously disposed on the main flow channel 2.2.1.

[0026] Preferably, the main flow channel 2.2.1 is a straight structure, and the branch flow channel 2.2.2 is an auricle-shaped structure.

[0027] Preferably, the branching channel 2.2.2 includes an inclined channel 2.2.2.1 that forms a certain angle with the main channel 2.2.1, and the inclined channel 2.2.2.1 is connected to the main channel 2.2.1 through a curved and rotating channel 2.2.2.2.

[0028] Preferably, the angle between the inclined flow channel 2.2.2.1 and the main flow channel 2.2.1 is an acute angle, and the angle between the curved and rotating flow channel 2.2.2.2 and the main flow channel 2.2.1 is an obtuse angle.

[0029] Preferably, the curved rotary flow channel 2.2.2.2 is a semi-circular flow channel structure.

[0030] Preferably, the inlet and outlet of the bifurcated flow channel 2.2.2 have a rounded chamfer structure (i.e., the optimized flow channel below).

[0031] like Figure 6 As shown, the inlet and outlet of the bifurcation channel 2.2.2 are designed with rounded chamfers. In the sediment movement trajectory diagram of this optimized channel, there is no obvious eddy movement of sediment, and the anti-clogging performance is improved. In contrast, in the channel without this rounded chamfer optimization, there are eddies near the outer wall, the water flow velocity is low, and sediment particles are more likely to be deposited on the outer wall of the branch channel and block the channel. Moreover, the blockage mainly occurs in the front section of the channel.

[0032] Hydraulic performance tests of the emitter were conducted in the laboratory to obtain the flow rate of the dual-outlet bifurcated labyrinth flow channel emitter under different pressures, such as... Figure 7 As shown, the optimized flow channel has a smaller flow index compared to the unoptimized bifurcated labyrinth flow channel, indicating improved hydraulic performance. It also exhibits good pressure compensation performance and can adapt to a wider pressure range.

[0033] Preferably, the number of branched channels 2.2.2 within the two branched labyrinth channels 2.2 is the same for each other.

[0034] Preferably, the two water outlet pipes 3 are arranged symmetrically with the location of the water inlet pipe 1 as the center line.

[0035] The working principle of this embodiment is as follows:

[0036] like Figure 5 As shown, in this embodiment, water flows from the drip irrigation pipe 4 into the inlet pipe 1, and then into the inlet 2.1 of the sprinkler body 2. After that, it is split and enters the two bifurcated labyrinth channels 2.2 on both sides. When the water flows in the bifurcated labyrinth channels 2.2, part of the water flows into the main channel 2.2.1 and part of the water flows into the bifurcated channels 2.2.2. Since the bifurcated channels 2.2.2 have an auricle-shaped structure, when the water flows out of the bifurcated channels 2.2.2, it forms an opposition with the water flow in the main channel 2.2.1, forming a vortex and effectively dissipating energy. Then it flows to the next bifurcated channel 2.2.2, and the energy dissipation is repeated. The two hydraulic phenomena occur alternately.

[0037] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The embodiments and features described in this application can be arbitrarily combined without conflict. The protection scope of this utility model should be defined as the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A double-outlet bifurcated labyrinth flow passage emitter, comprising a water inlet pipe (1) connected with a drip irrigation pipe (4), the water inlet pipe (1) is connected with a water inlet (2.1) of an emitter body (2), characterized in that: The inlet (2.1) is connected to the input end of a bifurcated labyrinth channel (2.2) on both sides of its output end. The output end of the bifurcated labyrinth channel (2.2) is connected to the outlet pipe (3) through the outlet (2.3). The bifurcated labyrinth channel (2.2) includes a main channel (2.2.1) located inside the water emitter body (2). Multiple bifurcated channels (2.2.2) are continuously arranged on the main channel (2.2.1). The main channel (2.2.1) is a straight structure, and the bifurcated channels (2.2.2) are auricle-shaped structures. The bifurcated channels (2.2.2) include inclined channels that form a certain angle with the main channel (2.2.1). 2.2.2.1), the inclined flow channel (2.2.2.1) is connected to the main flow channel (2.2.1) through the curved and rotating flow channel (2.2.2.2); the angle between the inclined flow channel (2.2.2.1) and the main flow channel (2.2.1) is an acute angle, and the angle between the curved and rotating flow channel (2.2.2.2) and the main flow channel (2.2.1) is an obtuse angle; the number of branched flow channels (2.2.2) in the two branched labyrinth flow channels (2.2) is the same for each other.

2. A dual outlet bifurcated labyrinth flow passage emitter according to claim 1, characterized in that: The curved rotary flow channel (2.2.2.2) is a semi-circular flow channel structure.

3. A dual outlet bifurcated labyrinth flow passage emitter according to claim 1, characterized in that: The inlet and outlet of the bifurcation channel (2.2.2) have rounded chamfered structures.

4. The dual outlet bifurcated labyrinth flow passage emitter according to claim 1, wherein: The two outlet pipes (3) are symmetrically arranged with the location of the inlet pipe (1) as the center line.

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