Rotary switch valve for mixing liquid flows with different pressures
By designing a rotary switch valve, the problem of pressure difference in liquid pipelines in the integrated water and fertilizer system was solved, enabling effective mixing and precise control of the liquid flow, and improving mixing efficiency and sealing performance.
Patent Information
- Application Number
- CN202520438123.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-13
AI Technical Summary
In integrated water and fertilizer systems, the pressure difference between different liquid pipelines causes the irrigation water to be forced into the fertilizer storage container, resulting in a pressure load. Existing technologies make it difficult to effectively mix and control the amount of liquid mixed.
Design a rotary switch valve comprising an outer cylinder, a rotating shaft, and an arc-shaped scraper. The rotating shaft drives the metering tank to rotate, thereby achieving the mixing of liquid flows at different pressures. The fertilizer solution and pressurized water flow are combined at a 45-degree angle. The arc-shaped scraper improves sealing performance and reduces residue.
It achieves effective mixing of liquid flows at different pressures, precisely controls the mixing volume, and improves mixing efficiency and sealing performance, while reducing liquid residue.
Smart Images
Figure CN223887785U_ABST
Abstract
Description
Technical Field
[0001] This invention provides a rotary switch valve for mixing liquid flows at different pressures, belonging to the field of mixer technology. Background Technology
[0002] In integrated water and fertilizer systems, different liquids are connected in pipelines during fertilizer application. Since the fertilizer solution is mostly static or flows at low velocity, its head and pressure are low. However, in the irrigation channel connected to the sprinkler head, the pumping force is greater and the nozzle orifice diameter is smaller, resulting in a much higher head and pressure difference compared to the fertilizer solution pipeline. Directly connecting the two would cause irrigation water to be forced into the fertilizer solution storage container instead of the sprinkler head, placing a significant pressure load on the pipeline. Utility Model Content
[0003] To address the aforementioned technical problems, this utility model provides a rotary switch valve for mixing liquids of different pressures, comprising an outer cylinder, on which a fertilizer inlet and a fertilizer outlet are provided, the fertilizer inlet and the fertilizer outlet being positioned opposite each other.
[0004] A rotating shaft is located at the center of the outer cylinder. Multiple arc-shaped scrapers are mounted on the rotating shaft, and a metering groove is located between adjacent arc-shaped scrapers. When the rotating shaft rotates, the metering groove rotates around the rotating shaft through the arc-shaped scrapers. The end of the metering groove facing the outer cylinder is an open end.
[0005] A conversion section is provided outside the fertilizer solution outlet, and the conversion section is connected to the pipeline through a connecting port;
[0006] The pressurized water in the pipeline flows from the low-pressure water inlet to the high-pressure water outlet; the angle between the joint and the pressurized water is 45 degrees, and the fertilizer solution flowing out of the fertilizer solution outlet merges with the pressurized water.
[0007] The beneficial effects of this utility model's technical solution are:
[0008] 1. A reasonable structural design minimizes the backflow of high-pressure water flow onto low-pressure water flow when water flows of different pressures are mixed, thus achieving better mixing.
[0009] 2. The quantitative tank design allows for the quantitative addition of liquids such as fertilizer solutions that require mixing and dilution, resulting in more precise control over the mixing amount.
[0010] 3. The combination of the arc-shaped scraper and the metering tank can improve the sealing of the valve and effectively reduce the residue of fertilizer solution on the inner wall, thereby improving utilization efficiency. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a side view structural diagram of the present invention;
[0013] Figure 3 This is a schematic diagram of the pipe connection of this utility model. Detailed Implementation
[0014] like Figure 1 , Figure 2 and Figure 3 As shown, a rotary switch valve for mixing liquids of different pressures includes an outer cylinder 5, on which a fertilizer inlet 1 and a fertilizer outlet 6 are provided, with the fertilizer inlet 1 and the fertilizer outlet 6 being positioned opposite each other.
[0015] A rotating shaft 4 is provided at the center of the outer cylinder 5. Multiple arc-shaped scrapers 3 are provided on the rotating shaft 4. A metering groove 2 is provided between adjacent arc-shaped scrapers 3. When the rotating shaft 4 rotates, the metering groove 2 is driven to rotate around the rotating shaft 4 through the arc-shaped scrapers 3. The end of the metering groove 2 facing the outer cylinder 5 is the open end.
[0016] like Figure 1 and Figure 3 As shown, a conversion section 7 is provided outside the fertilizer outlet end 6, and the conversion section 7 is connected to the pipeline through the connecting port 8;
[0017] The pressurized water flow 9 in the pipeline flows from the low-pressure water inlet end 10 to the high-pressure water outlet end 11; the angle between the joint port 8 and the pressurized water flow 9 is 45 degrees, and the fertilizer solution flowing out of the fertilizer solution outlet end 6 merges with the pressurized water flow 9.
[0018] The fertilizer solution inlet 1 and fertilizer solution outlet 6 are fixed to the outer cylinder 5. Only the rotating shaft 4 drives the four metering tanks 2 arranged in a matrix around the perimeter to rotate.
[0019] First, the fertilizer solution enters the outer cylinder 5 through the fertilizer solution inlet 1 and accumulates in the metering tank 2. Simultaneously, the rotating shaft 4 rotates, causing the matrix-arranged metering tank 2 to rotate clockwise, while the outer cylinder 5 remains stationary. Arc-shaped scrapers 3 are arranged around the metering tank 2 and move integrally with it. The fertilizer solution in the metering tank 2 rotates and reaches the fertilizer solution outlet 6, then is discharged to the conversion section 7. Finally, the fertilizer solution passes through the conversion section 7 and the connecting port 8, merging with the pressurized water flow 9. The pressurized water flow direction is from the low-pressure water inlet 10 to the high-pressure water outlet 11. This direction ensures that the angle between the pressurized water flow and the fertilizer solution during mixing is 45°, effectively preventing backflow of the pressurized water flow.
[0020] The entire device is in accordance with Figure 1 The front view shown is placed vertically, and the fertilizer solution flows downwards under the influence of gravity.
[0021] The beneficial effects of this utility model's technical solution are:
[0022] This invention is used for mixing liquids of different pressures. It utilizes a rotating shaft to drive a metering tank, transferring the low-pressure flow within the tank to the high-pressure water channel below, thus achieving effective mixing of liquids with different pressures. Secondly, the arrangement of the metering tank allows for control of the mixing volume. Finally, the use of an arc-shaped scraper increases the sealing of the metering tank while reducing residue on the inner wall surface, improving utilization.
Claims
1. A rotary switching valve for mixing liquid flows of different pressures, characterized in that, It includes an outer cylinder (5), on which a fertilizer inlet (1) and a fertilizer outlet (6) are provided, and the fertilizer inlet (1) and the fertilizer outlet (6) are positioned opposite each other; A rotating shaft (4) is provided at the center of the outer cylinder (5). Multiple arc-shaped scrapers (3) are provided on the rotating shaft (4). A metering groove (2) is provided between adjacent arc-shaped scrapers (3). When the rotating shaft (4) rotates, the metering groove (2) is driven to rotate around the rotating shaft (4) through the arc-shaped scrapers (3). The end of the metering groove (2) facing the outer cylinder (5) is an open end.
2. A rotary switching valve for mixing liquid flows of different pressures according to claim 1, characterized in that, The fertilizer outlet (6) is provided with a conversion section (7), which is connected to the pipeline through a connecting port (8).
3. A rotary switching valve for mixing liquid flows of different pressures according to claim 2, characterized in that, The pressurized water flow (9) in the pipeline flows from the low-pressure water inlet end (10) to the high-pressure water outlet end (11); the angle between the joint port (8) and the pressurized water flow (9) is 45 degrees, and the fertilizer solution flowing out of the fertilizer solution outlet end (6) merges with the pressurized water flow (9).