Metering pump gas-hydraulic combined stroke adjustment system
A stroke adjustment and metering pump technology, applied in the field of metering pump remote stroke control and metering pump, can solve the problems of adjustment lag, potential safety hazards, etc., and achieve the effect of safe operation, saving human resources, and reducing labor costs.
Active Publication Date: 2016-01-06
HEFEI GENERAL MACHINERY RES INST
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Problems solved by technology
It can solve the problems of potential safety hazards and adjustment hysteresis that currently rely on manual adjustment
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[0016] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the following describes the present invention in combination with specific illustrations and specific embodiments, but it is not used to limit the protection scope of the present invention.
[0017] Please refer to figure 1 , A metering pump gas-liquid combined stroke adjustment system, including a stroke control part 1 and an adjustment execution part 2. The stroke control part 1 includes a signal input terminal connected to a control signal 11 and a power source 12 connected to the positioner 13 and stroke The feedback rod 14 and the power distribution output end of the positioner 13 are respectively connected to the first auxiliary cylinder 21 and the second auxiliary cylinder 23, and the stroke feedback rod 14 is connected to the piston rod 26; the adjustment execution part 2 includes the first auxiliary cylinder 21 and the main hydraulic pressure...
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The invention discloses a gas-liquid combination-type stroke regulation system for a metering pump, and relates to the technical field of metering pumps. The problems of potential safety hazard and regulation hysteresis quality due to manual regulation in the prior art can be solved. The gas-liquid combination-type stroke regulation system for the metering pump comprises a stroke control part and a regulation execution part, wherein the stroke control part comprises a signal input end access control signal, a power air source locator and a stroke feedback rod; the power air source distribution output end of the locator is respectively connected with a first auxiliary cylinder and a second auxiliary cylinder; and the stroke feedback rod is respectively connected with the locator and a piston rod. According to the gas-liquid combination-type stroke regulation system for the metering pump, the traditional industrial gas source is utilized and is combined with internal hydraulic oil to carry out pressure conversion so as to form a driving source; after a control signal is received, remote unattended regulation can be carried out; and because the driving gas source, a gas source signal or an electric signal belongs to the intrinsic safety type, the gas-liquid combination-type stroke regulation system for the metering pump is not only suitable for a non-anti-explosion area and but also especially suitable for occasions with the anti-explosion requirement.
Description
Technical field: [0001] The invention relates to the technical field of metering pumps, and is applied to the field of metering pump remote stroke control, in particular to a metering pump gas-liquid combined stroke adjustment system. Background technique: [0002] As an ideal equipment for fluid precision metering and feeding, metering pumps are now widely used in various fields including petrochemical, pharmaceutical, food and beverage industries, and are responsible for strong corrosive, toxic and high-pressure media in the process. Add tasks for metering. As an auxiliary (but indispensable) equipment in the production equipment and production process, the metering pump has a certain correlation between its output flow and the concentration, PH value and flow rate of other materials, so its flow must be The parameters change at any time, and the response speed and accuracy of the flow change also directly affect the quality of the final product. [0003] The manual stroke adju...
Claims
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IPC IPC(8): F04B49/12
Inventor 刘海山蔡粤华赵以奎张如平丁强民王祥薇温超文宏刚潘政广
Owner HEFEI GENERAL MACHINERY RES INST