Intelligent gas-liquid constant dryness and constant flow regulating device
A control device and constant flow technology, which is applied in the direction of non-electric variable control, mining fluid, control/regulation system, etc., can solve problems such as energy waste and large resistance loss, and achieve the effect of improving distribution and control capabilities
Pending Publication Date: 2020-04-28
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
The designed device is simple in structure, durable and reliable, but the main disadvantage is that the resistance loss is too large. When the back pressure ratio is about 0.5, the critical flow state can be reached, that is to say, almost the upstream stagnation pressure About half of it is lost, resulting in a huge waste of energy
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[0019] The present invention will be further described below in conjunction with the accompanying drawings.
[0020] An intelligent control device for constant flow of gas and liquid, including a main body 1, a branch pipeline, a shaping device 2, a sealing device 3, a gas-liquid flow regulator 4, a flow sensor 6, a dryness flow control system 7, and a PLC controller 8. Data management system 9 and flow dryness management system 10, a shaping device 2 is installed at one end of the main body 1, and the shaping device 2 is a labyrinth; a sealing device 3 is installed in the middle of the main body 1 The packing device 3 includes a fixed partition 301, a main branch outlet 302, a connecting shaft 303, a movable partition 304, a stepping motor control system A305 and a side branch outlet 306, and the fixed partition 301 is welded on the sealed One end of the movable partition 304 is connected to the connecting shaft 303, and the other end of the movable partition 304 is connected...
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The invention provides an intelligent gas-liquid constant dryness and constant flow regulating device. A shaping device is installed at one end in a main body; a packing device is installed on the middle part in the main body, a fixed separation plate is welded to the inner wall of the packing device, a movable separation plate is connected with a stepping motor regulating system A, a gas-liquid flow regulator is installed in a branch pipe B, a gear sliding strip is controlled by a stepping motor regulating system B, the gas-liquid flow regulator is internally provided with a support rod, a fixed float is installed on the support rod, and a nozzle is welded to the inner wall of the gas-liquid flow regulator. The intelligent gas-liquid constant dryness and constant flow regulating device has the advantages that the distribution and regulation capabilities are improved, and constant dryness and constant flow gas-liquid distribution under different pressures can be realized in combinationwith a critical flow principle of a venturi nozzle; the gas-liquid flow rate of distribution and regulation is 0 t / h-23 t / h; the gas-liquid dryness range of distribution and regulation is 0-100%; theflow error of each branch is less than 5%; and the dryness error of each branch is less than 5%.
Description
technical field [0001] The invention relates to the field of intelligent distribution and control of gas-liquid two-phase fluids, in particular to an intelligent control device for constant flow of gas-liquid equal dryness. Background technique [0002] Gas-liquid two-phase flow widely exists in nuclear energy, petrochemical and other industrial fields, and there are widespread problems in the distribution and regulation of gas-liquid flow. When the gas-liquid two-phase fluid passes through the distribution pipeline, there is an obvious separation of gas-liquid two-phase flow, resulting in large differences in dryness and flow rate, which cannot be distributed according to the specification parameters, and has a serious impact on the safe and efficient operation of industrial equipment. For example, in the steam injection pipeline, severe phase separation will seriously affect the flow rate and heat enthalpy of each steam injection well. Therefore, it is hoped that the two-p...
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IPC IPC(8): E21B43/24G05D27/02
CPCE21B43/24G05D27/02
Inventor 王增林刘明谢志勤盖平原戴宇婷李友平姜泽菊逯国成张鹏
Owner CHINA PETROLEUM & CHEM CORP