Pesticide stirrer
By designing a detachable nozzle sleeve connected to a branch pipe, a mixing chamber, and a venturi principle for mixing in the pesticide mixer, combined with the mixing gap between the ceramic ring and the spray nozzle, the problems of cavitation and high energy consumption in pesticide mixers are solved, achieving efficient mixing and equipment durability.
Patent Information
- Application Number
- CN202423271746.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing pesticide mixers are prone to cavitation under high pressure, leading to wear and leakage in the manifold, high energy consumption, and difficult equipment maintenance.
A pesticide mixer was designed, which features a detachable nozzle sleeve and a branch pipe. The mixing chamber has a gas channel and utilizes the Venturi principle to achieve gas and liquid mixing under low pressure. A ceramic ring and a spray nozzle form a mixing gap, and a filter screen is installed to intercept impurities. The branch pipe is made of cast iron or stainless steel.
It effectively prevents cavitation, improves mixing efficiency, reduces energy consumption, extends equipment life, reduces the risk of equipment blockage, is easy to operate, and has strong adaptability.
Smart Images
Figure CN223887784U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of agricultural machinery technology, and in particular relates to a pesticide mixer. Background Technology
[0002] During pesticide application, mixing and agitation are crucial steps to ensure uniform pesticide distribution, improve pesticide utilization, and enhance control efficacy. To achieve this goal, pesticide mixers have been developed. These devices integrate multiple functions such as pumping, mixing, and agitation, aiming to improve the efficiency and quality of pesticide treatment through highly efficient operation.
[0003] In the prior art, patent application number 2015800705842 discloses a pesticide mixer that simultaneously sprays liquid and gas, comprising: a branch pipe housed in a pesticide tank and forming at least three fluid inlets and outlets; a first hose connected on one side to the first fluid inlet and outlet of the branch pipe and on the other side to a pump; and a second hose connected on one side to the second fluid inlet and outlet of the branch pipe and on the other side exposed to air.
[0004] While this design improves the efficiency of pesticide mixing to some extent, it also exposes several technical problems. First, to achieve effective gas intake and mixing, the mixer requires a high pumping pressure, which not only increases energy consumption but also potentially challenges the pump's durability, raising operating costs and maintenance complexity. More critically, when liquid containing air bubbles flows through a high-pressure area, the bubbles may suddenly collapse. This process, accompanied by enormous impact pressure, strongly impacts the inner wall of the manifold, leading to a phenomenon known as "cavitation." Cavitation not only accelerates the wear of the manifold material, reducing its service life, but can also cause leaks. Utility Model Content
[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a pesticide mixer.
[0006] The objective of this utility model can be achieved through the following technical solutions:
[0007] A pesticide mixer includes a branch pipe with at least two fluid inlets and outlets, a nozzle sleeve, an air inlet, and a liquid inlet. The nozzle sleeve is detachably connected to the branch pipe and houses the fluid inlets and outlets. The nozzle sleeve has spray holes that correspond to the fluid inlets and outlets, forming a mixing chamber between the nozzle sleeve and the branch pipe. The branch pipe also has a gas channel communicating with the mixing chamber. The air inlet is connected to the branch pipe and communicates with the gas channel. The liquid inlet is connected to the branch pipe and communicates with the fluid inlets and outlets. The liquid inlet is used to connect to a pump body to discharge the liquid pumped by the pump body to the fluid inlets and outlets.
[0008] Preferably, the system also includes a ceramic ring and a nozzle. Each fluid inlet / outlet has a step. The ceramic ring is disposed on the step and has a throttling orifice for liquid flow. The flow diameter of the throttling orifice is smaller than that of the fluid inlet / outlet. The nozzle is threaded to the fluid inlet / outlet and presses against the ceramic ring. The nozzle has an enlarged hole that mates with the throttling orifice, and a mixing gap is formed between the nozzle and the spray hole.
[0009] Preferably, a sealing ring is provided between the step and the ceramic ring. The ceramic ring is disc-shaped, the throttling orifice is located at the center of the ceramic ring, the expanding orifice is an expanding orifice that gradually expands from the inside to the outside, and the end of the injection orifice opposite to the spray nozzle is an expanding orifice that gradually expands from the inside to the outside.
[0010] Preferably, the branch pipe is in the shape of a multi-ridged column, and the inlets of the air inlet and liquid inlet are both arranged facing upwards.
[0011] Preferably, the fluid inlet and outlet are two in number and are arranged symmetrically from left to right.
[0012] Preferably, the nozzle sleeve is threadedly connected to the branch pipe, and the outer circumferential surface of the nozzle sleeve is provided with several protrusions, and the outer wall of the injection hole is provided with several reinforcing ribs that are fixed to the outer wall of the nozzle sleeve.
[0013] Preferably, a filter screen is fixedly installed on the liquid inlet nozzle, and the filter screen has a plurality of filter holes.
[0014] Preferably, the branch pipe and / or nozzle sleeve are made of cast iron or stainless steel so that they can sink quickly in pesticide aqueous solutions.
[0015] Compared with the prior art, the present invention has the following advantages:
[0016] 1. The mixing chamber formed between the injection hole on the nozzle sleeve and the branch pipe provides ample space for the mixing of gas and liquid, improving mixing efficiency, effectively preventing cavitation, and extending the service life of the equipment.
[0017] 2. A ceramic ring and a spray nozzle are installed on the steps at the fluid inlet and outlet. Utilizing the Venturi principle, the mixing gap formed between the spray nozzle and the spray hole provides space for further mixing and refining of the pesticide solution. This allows for thorough mixing of gas and liquid at relatively low pumping pressure, improving the mixing effect and reducing energy consumption.
[0018] 3. The nozzle sleeve and the branch pipe adopt a detachable threaded connection, which is convenient for disassembly and maintenance. A filter screen is installed at the inlet of the liquid inlet nozzle to intercept impurities and particulate matter in the pesticide solution, reducing the risk of equipment blockage, and also making it easy to clean and replace.
[0019] 4. This mixer has a stable structure, is easy to operate, and is highly adaptable, making it a promising candidate for agricultural production. Attached Figure Description
[0020] Figure 1 This is an isometric view of the overall structure of this utility model.
[0021] Figure 2 This is a schematic diagram of the disassembled structure of this utility model.
[0022] Figure 3 This is a cross-sectional structural diagram of the present invention.
[0023] Figure 4 This is a schematic diagram of the application scenario of this utility model.
[0024] In the diagram, 1 is a branch pipe; 11 is a fluid inlet / outlet; 11a is a step; 12 is a mixing chamber; 13 is a gas passage; 2 is a nozzle sleeve; 21 is a jet hole; 21a is a reinforcing rib; 22 is a raised rib; 3 is an air inlet nozzle; 4 is a liquid inlet nozzle; 5 is a ceramic ring; 51 is a throttling orifice; 6 is a liquid spray nozzle; 61 is an enlarged orifice; 62 is a mixing gap; 7 is a sealing ring; 8 is a filter screen; and 81 is a filter hole. Detailed Implementation
[0025] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0026] Example 1
[0027] See Figures 1-3 This embodiment provides a pesticide mixer, including a branch pipe 1, which has at least two fluid inlets and outlets 11, and also includes a nozzle sleeve 2, an air inlet 3, and a liquid inlet 4. The nozzle sleeve 2 is detachably connected to the branch pipe 1 and fits the fluid inlets and outlets 11 inside it. The nozzle sleeve 2 has a spray hole 21 that is connected to the fluid inlets and outlets 11. A mixing chamber 12 is formed between the nozzle sleeve 2 and the branch pipe 1. The branch pipe 1 also has a gas channel 13 that communicates with the mixing chamber 12. The air inlet 3 is connected to the branch pipe 1 and communicates with the gas channel 13 to introduce gas into the mixing chamber 12. The liquid inlet 4 is connected to the branch pipe 1 and communicates with the fluid inlets and outlets 11.
[0028] When using it, please refer to Figure 4The liquid inlet nozzle 4 is connected to the branch pipe 1 and communicates with the fluid inlet / outlet 11. It is used to connect to the pump body, so that the liquid pumped by the pump body is discharged to the fluid inlet / outlet 11. The air inlet nozzle 3 is connected to the air inlet hose, so that the outside air is introduced into the mixing chamber 12 through the gas channel 13. According to the Venturi principle, the liquid velocity increases due to the low pressure outside the spray hole 21. During this period, the liquid flowing through will absorb the air in the gas channel 13 and mix in the mixing chamber 12, thereby effectively avoiding severe cavitation on the surface and inner wall of the branch pipe 1, improving the service life of the equipment, and achieving full mixing of gas and liquid during high-speed flow at a relatively low pumping pressure. Then, it is sprayed out through the spray hole 21 on the nozzle sleeve 2 to form a uniformly distributed pesticide mixture and further agitate it, thereby improving the uniformity and utilization rate of the pesticide.
[0029] In some embodiments, a valve may be installed on the intake hose to control the gas flow rate and to open and close the intake.
[0030] The nozzle sleeve 2 is detachable, which makes maintenance of the mixer more convenient. When the nozzle sleeve 2 or internal parts become worn or clogged, it can be easily removed for cleaning or replacement.
[0031] The pesticide mixer in this embodiment can be customized according to actual needs. The number and position of the fluid inlet and outlet 11 can be adjusted to adapt to pesticide tanks of different sizes and different mixing requirements.
[0032] Example 2
[0033] See Figure 2 , Figure 3 In this embodiment, the pesticide mixer also includes a ceramic ring 5 and a spray nozzle 6. Each fluid inlet / outlet 11 has a step 11a. The ceramic ring 5 is disposed on the step 11a and has a throttling orifice 51 for liquid flow. The flow diameter of the throttling orifice 51 is smaller than that of the fluid inlet / outlet 11. The spray nozzle 6 is threaded to the fluid inlet / outlet 11 and presses against the ceramic ring 5. The spray nozzle 6 has an enlarged hole 61 that mates with the throttling orifice 51, and a mixing gap 62 is formed between the spray nozzle 6 and the spray hole 21.
[0034] Step 11a not only provides a stable foundation for the installation of ceramic ring 5 and nozzle 6, but also optimizes the fluid flow path. Ceramic ring 5, typically made of ceramic, ensures good corrosion resistance and wear resistance. A throttling orifice 51 is formed on ceramic ring 5, with a flow diameter smaller than the fluid inlet / outlet 11. This orifice regulates flow rate and increases fluid pressure, further accelerating the pesticide solution flow through the orifice 51. This strengthens the air adsorption force within gas channel 13, reducing the pumping pressure requirements and thus reducing energy consumption. Nozzle 6 is threaded to fluid inlet / outlet 11. This connection ensures a secure connection while facilitating disassembly and replacement. When nozzle 6 presses against ceramic ring 5, its enlarged orifice 61 precisely aligns with the throttling orifice 51, ensuring smooth fluid flow. Simultaneously, a mixing gap 62 is formed between nozzle 6 and spray hole 21, providing space for further mixing and refinement of the pesticide solution.
[0035] Furthermore, a sealing ring 7 is provided between the step 11a and the ceramic ring 5. The ceramic ring 5 is disc-shaped, the throttling orifice 51 is located at the center of the ceramic ring 5, the expanding orifice 61 is an flared opening that gradually widens from the inside out, and the end of the spray orifice 21 opposite to the spray nozzle 6 is also an flared opening that gradually widens from the inside out. The sealing ring 7 added between the step 11a and the ceramic ring 5 has good sealing performance and corrosion resistance. This design not only ensures that the pesticide solution will not leak from the connection point during stirring and spraying, but also improves the overall sealing performance of the equipment.
[0036] The ceramic ring 5 is disc-shaped with a throttling orifice 51 at its center. This design allows for stable pressure release as the fluid passes through the throttling orifice. The expanding orifice 61 on the nozzle 6 gradually widens from the inside out, thereby increasing the contact area between the fluid and air and improving the mixing effect. At the same time, the end of the spray orifice 21 opposite to the nozzle 6 also gradually widens from the inside out. This design can further refine the aerosol droplets of the pesticide solution.
[0037] Furthermore, the branch pipe 1 is a multi-faceted cylindrical shape, and the inlets of both the air inlet 3 and the liquid inlet 4 are arranged facing upwards. This shape not only enhances the structural strength of the branch pipe but also allows the side of the branch pipe 1 to fit more stably against the bottom of the pesticide tank. The multi-faceted cylindrical shape of the branch pipe 1 helps reduce turbulence and eddies at the bottom of the pesticide tank, improving the mixing effect. The arrangement of the air inlet 3 and the liquid inlet 4 facing upwards facilitates the connection between the pump body and the air inlet pipe, avoiding interference with the fluid inlet / outlet 11.
[0038] The fluid inlet and outlet 11 are two in number and are arranged symmetrically from left to right, so that the injection pressure generated from the injection hole 21 can be balanced, thereby improving the stability of stirring and mixing.
[0039] Furthermore, the nozzle sleeve 2 is threadedly connected to the branch pipe 1. The outer circumferential surface of the nozzle sleeve 2 is provided with several protrusions 22, and the outer wall of the injection hole 21 has several reinforcing ribs 21a that are circumferentially extended and fixed to the outer wall of the nozzle sleeve 2. The threaded connection between the nozzle sleeve 2 and the branch pipe 1 significantly improves the stability of the connection, making it easier to assemble and disassemble the nozzle sleeve 2 and the branch pipe 1. The protrusions 22 are used to increase the contact friction between the hand and the outer circumferential wall of the nozzle sleeve 2 when rotating the nozzle sleeve 2. The circumferentially extended reinforcing ribs 21a on the outer wall of the injection hole 21 significantly enhance the structural strength of the injection hole, enabling it to withstand higher pressures and more complex fluid flow environments, thus extending the service life of the equipment.
[0040] Furthermore, a filter screen plate 8 is fixedly installed on the liquid inlet nozzle 4, and the filter screen plate 8 is provided with a plurality of filter holes 81. The design of the filter screen plate 8 effectively intercepts impurities and particulate matter in the pesticide solution, improves the purity of the pesticide solution, thereby ensuring the spraying effect and control effect of the pesticide, reducing the risk of equipment clogging, and extending the service life of the equipment.
[0041] Furthermore, the branch pipe 1 and / or nozzle sleeve 2 are made of cast iron or stainless steel, allowing them to sink quickly in pesticide solutions. The high-density materials of the branch pipe 1 and nozzle sleeve 2 result in even faster sinking speeds in pesticide solutions, resist water flow impact, and facilitate operations in complex environments such as farmland.
[0042] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
Claims
1. A pesticide mixer, comprising a branch pipe (1), characterized in that, The branch pipe (1) is provided with at least two fluid inlets and outlets (11), and also includes a nozzle sleeve (2), an air inlet (3) and a liquid inlet (4). The nozzle sleeve (2) is detachably connected to the branch pipe (1) and fits the fluid inlets and outlets (11) inside it. The nozzle sleeve (2) is provided with a spray hole (21) that is connected to the fluid inlets and outlets (11). A mixing chamber (12) is formed between the nozzle sleeve (2) and the branch pipe (1). The branch pipe (1) is also provided with a gas channel (13) that communicates with the mixing chamber (12). The air inlet (3) is connected to the branch pipe (1) and communicates with the gas channel (13). The liquid inlet (4) is connected to the branch pipe (1) and communicates with the fluid inlets and outlets (11).
2. The pesticide mixer according to claim 1, characterized in that, It also includes a ceramic ring (5) and a nozzle (6). Each fluid inlet / outlet (11) has a step (11a). The ceramic ring (5) is set on the step (11a). The ceramic ring (5) has a throttling hole (51) for liquid flow. The flow diameter of the throttling hole (51) is smaller than that of the fluid inlet / outlet (11). The nozzle (6) is threaded to the fluid inlet / outlet (11) and presses against the ceramic ring (5). The nozzle (6) has an enlarged hole (61) that mates with the throttling hole (51) and a mixing gap (62) is formed between the nozzle (6) and the injection hole (21).
3. A pesticide mixer according to claim 2, characterized in that, A sealing ring (7) is provided between the step (11a) and the ceramic ring (5). The ceramic ring (5) is disc-shaped. The throttling orifice (51) is located at the center of the ceramic ring (5). The bulging orifice (61) is bulging in a gradually expanding shape from the inside to the outside. The end of the injection orifice (21) opposite to the liquid nozzle (6) is bulging in a gradually expanding shape from the inside to the outside.
4. A pesticide mixer according to any one of claims 1-3, characterized in that, The branch pipe (1) is in the shape of a multi-ridged column, and the inlets of the air inlet (3) and the liquid inlet (4) are both set facing upwards.
5. A pesticide mixer according to claim 4, characterized in that, The fluid inlet and outlet (11) are two in number and are arranged symmetrically on the left and right.
6. A pesticide mixer according to claim 5, characterized in that, The nozzle sleeve (2) is threadedly connected to the branch pipe (1). The outer circumferential surface of the nozzle sleeve (2) is provided with several protrusions (22). The outer wall of the injection hole (21) is circumferentially extended with several reinforcing ribs (21a) that are fixed to the outer wall of the nozzle sleeve (2).
7. A pesticide mixer according to any one of claims 1-3, characterized in that, A filter screen plate (8) is fixedly installed on the liquid inlet nozzle (4), and the filter screen plate (8) is provided with a plurality of filter holes (81).
8. A pesticide mixer according to any one of claims 1-3, characterized in that, The branch pipe (1) and / or nozzle sleeve (2) are made of cast iron or stainless steel and can sink quickly in pesticide aqueous solutions.