Asphalts small flow metering device
An automatic metering and small flow technology, applied in the direction of measuring device, measuring flow/mass flow, liquid/fluid solid measurement, etc.
Active Publication Date: 2012-09-12
湖南鑫弘科技有限责任公司
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Problems solved by technology
[0002] At present, the target flowmeter is used to measure the large flow of asphalt, or the sensor weighing method is used to measure the flow of asphalt, and there is no automatic measurement device for the small flow of asphalt
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[0011] Such as figure 1 , figure 2 As shown, the automatic metering device suitable for small flow rate of asphalt provided by the present invention includes a valve block 1, a metering cylinder 2, an asphalt inlet pipe 3, a heat transfer oil inlet pipe 4, a temperature sensor 5, a connecting seat 6, a computer 7, Oil cylinder 8, electro-hydraulic proportional flow valve 9, three-position four-way solenoid valve 10, oil pump 11, sensor 12, bracket 13; asphalt inlet pipe 3 and heat transfer oil inlet pipe 4 communicate with valve block 1, and metering cylinder 2 is installed on the valve block 1, the valve block 1 has an oil tank connected to the heat transfer oil inlet pipe 4 and a bridge rectifier hole connected to the metering cylinder 2, and a heat transfer oil communication pipe 14 is provided between the metering cylinder 2 and the valve block 1; the temperature sensor 5 Extending into the valve block 1, the right side of the connection seat 6 is connected to the meteri...
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The invention discloses a small flow asphalt metering device, which comprises a valve block, a metering cylinder, an asphalt feed tube, a heat conducting oil tube, a temperature sensor, a connecting seat, a computer, an oil cylinder, an electro-hydraulic proportional valve, a three-position four-way electromagnetic valve, an oil pump, a sensor and a support, wherein the support, the oil cylinder, the connecting seat and the metering cylinder are connected in sequence; the two ends of the electro-hydraulic proportional valve are connected with the oil cylinder and the three-position four-way electromagnetic valve respectively; the oil pump and the three-position four-way electromagnetic valve are connected; and the electro-hydraulic proportional valve and the three-position four-way electromagnetic valve are connected with the computer. The temperature sensor senses the temperature of the valve block and the displacement of the support, and transmits the data to the computer; the computer analyzes the data and controls the oil pump to start; the electro-hydraulic proportional valve controls the flow of the hydraulic oil and finally controls the travel of the piston of the oil cylinder; and based on the travel of the piston of the oil cylinder, the measured asphalt flow output from the valve block is directly associated with the displacement of the support, and thus, the real-time, visual and controllable measurement of small asphalt flow is realized.
Description
technical field [0001] The invention relates to a device suitable for automatic metering of small asphalt flow. Background technique [0002] At present, target flow meters are used for large asphalt flow measurement, or sensor weighing method is used for asphalt flow measurement, and there is no automatic measurement device for small asphalt flow. Contents of the invention [0003] The purpose of the present invention is to provide a metering device capable of performing stable and reliable operation on small flow rate of asphalt and whose output flow rate can be automatically controlled. [0004] The device suitable for automatic metering of small-flow asphalt provided by the present invention includes a valve block, a metering cylinder, an asphalt inlet pipe, a heat transfer oil inlet pipe, a temperature sensor, a connecting seat, a computer, an oil cylinder, an electro-hydraulic proportional flow valve, three Position four-way solenoid valve, oil pump, sensor, bracket...
Claims
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IPC IPC(8): G01F3/14
Inventor 谢建华候定一胡芳
Owner 湖南鑫弘科技有限责任公司