Pressure-adjustable pressure stabilizing device
A technology to adjust and stabilize the pressure, which is applied in the field of pressure stabilization, which can solve the problems of mist shape, flow rate, droplet particle size change, dripping at the nozzle outlet, and drug damage at the outlet of the nozzle, so as to achieve stable and variable pressure and simple mechanism , The effect of simple runner structure
Pending Publication Date: 2019-08-30
NANJING AGRI MECHANIZATION INST MIN OF AGRI
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Problems solved by technology
[0002] When the plant protection machinery is spraying, due to the fluctuation of the pressure of the infusion pipeline, the mist shape, flow rate, and droplet size at the outlet of the nozzle will change, especially when the pressure does not meet the atomization requirements or when the sprayer stops working. Leakage occurs at the outlet of the nozzle, resulting in phytotoxicity
[0003] In response to the above phenomenon, people have invented a constant pressure stabilizing device, such as CN201310492707.4, which designed a fluid stabilizing valve to ensure that the pressure at the outlet is always kept constant when the inlet pressure fluctuates, but it can only maintain a constant pressure at the outlet. a stable pressure value
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[0033] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.
[0034] Such as figure 1 As shown, the adjustable pressure stabilizing device of the present invention includes a valve frame 1 , a valve core 2 , an annular frame 3 , a valve body 5 , a middle cylinder 7 , an inner cylinder 11 , a flexible bladder 12 and an outer cylinder 13 .
[0035] Such as figure 1 As shown, the outer cylinder 13 is a hollow stepped cylinder, and the hollow space in the outer cylinder 13 is also stepped; the steps of the outer cylinder 13 are provided with positioning holes; the middle cylinder 7 is installed on At the step of the hollow space in the outer cylinder 13, a cavity is provided in the middle cylinder 7; as image 3 As shown, the middle cylinder 7 is provided with a stigma corresponding to the positioning hole provided at the step of the outer cylinder 13, and the stigma is provided with a channel to communicat...
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The invention discloses a pressure-adjustable pressure stabilizing device comprising a valve frame (1), a valve element (2), a valve body (5), a middle cylinder (7), a flexible bag (12) and an outer cylinder (13). When the valve element (2) moves to the right, a fixed plate (8), a diaphragm (9) and a pressure plate (10) are driven to move together to the right, a medicine solution flowing in froman inlet flows out from a small hole stabilizing section of the valve frame (1) and flows to an outlet through a cavity formed by the outer cylinder (13), the valve body (5) and the middle cylinder (7). According to the pressure-adjustable pressure stabilizing device, the area of a runner inside the device is changed, the outlet pressure is stable when the inlet pressure fluctuates, and it is ensured that fog drops sprayed by a spray nozzle in the working process of the device are coincident. Meanwhile, the characteristic of internal electrorheological fluid is changed, the outlet pressure canbe adjusted, and the pressure-adjustable pressure stabilizing device is suitable for various spraying conditions.
Description
technical field [0001] The invention relates to the field of pressure stabilization, and specifically refers to a device capable of keeping the outlet pressure always stable when the inlet pressure fluctuates, and the outlet pressure can be adjusted as required. Background technique [0002] When the plant protection machinery is spraying, due to the fluctuation of the pressure of the infusion pipeline, the mist shape, flow rate, and droplet size at the outlet of the nozzle will change, especially when the pressure does not meet the atomization requirements or when the sprayer stops working. Leakage occurs at the outlet of the nozzle, resulting in phytotoxicity. [0003] In response to the above phenomenon, people have invented a constant pressure stabilizing device. For example, CN201310492707.4 designed a fluid stabilizing valve to ensure that the pressure at the outlet is always kept constant when the inlet pressure fluctuates, but it can only maintain a constant pressure...
Claims
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IPC IPC(8): F16K17/20
CPCF16K17/20
Inventor 丁素明周立新薛新宇秦维彩周良富张玲金永奎顾伟崔龙飞蔡晨
Owner NANJING AGRI MECHANIZATION INST MIN OF AGRI