Flow metering regulating valve
A technology of flow measurement and regulating valve, which is applied in flow control, control/regulation system, and flow control of electrical devices, etc. It can solve the problems of large artificial errors, poor real-time performance, and bulky instruments, so as to reduce process lag and save energy. The effect of process cost
Pending Publication Date: 2021-04-02
XIAN ANCN INTELLIGENT INSTR +1
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Problems solved by technology
When it is necessary to control the fluid flow in the pipeline, the data of the flowmeter is read artificially as a feedback signal, and the opening of the valve is manually adjusted to realize the flow adjustment of the fluid in the pipeline. This operation method is inefficient, poor in real-time performance and has a large error introduced by humans.
[0003] In addition, there are also cases where the flowmeter and valve control are separated for combined use, but this situation will lead to a bulky instrument and require a variety of flowmeter ranges to meet various application scenarios
Method used
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Embodiment Construction
[0040] Attached to the invention figure 1 and 2 It is an angle valve valve, image 3 and 4 It is a straight-through valve. This example shows the use of the invention of the present application in two types of valves. The principles are the same, and only one of them is used as an example for illustration.
[0041] A flow metering regulating valve, comprising an intelligent electric actuator 1, a valve 2, a valve connector 3, a connecting buckle 4, a pre-valve pressure transmitter 5, a post-valve pressure transmitter 6 and a temperature transmitter 7; The accuracy of the pressure transmitter 5 before the valve and the pressure transmitter 6 after the valve is not less than 0.05% FS.
[0042] The valve connector 3 connects the intelligent electric actuator 1 and the valve 2 through bolts;
[0043] The intelligent electric actuator 1 includes a motor 1-1, a reduction mechanism 1-2, a display 1-3, an intelligent control system 1-4, an explosion-proof box 1-5 and a reducer ...
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A flow metering regulating valve comprises an intelligent electric actuating mechanism, a valve, a valve connecting piece, a connecting buckle, a valve front pressure transmitter, a valve rear pressure transmitter and a temperature transmitter. The intelligent electric actuating mechanism is fixedly connected with the valve through a bolt by the valve connecting piece; the intelligent electric actuating mechanism comprises a motor, a speed reducing mechanism, a display, an intelligent control system, an explosion-proof box body and a speed reducer push rod; upstream and downstream connecting flanges of the valve are respectively connected with a fluid conveying pipeline; the valve rod and the speed reducer push rod are mechanically connected through a bolt by the connecting buckle; the valve front pressure transmitter is arranged at the upstream part of a valve body, and the valve rear pressure transmitter and a temperature transmitter are arranged at the downstream of the valve body;and the valve front pressure transmitter, the valve rear pressure transmitter and the temperature transmitter are all connected with the intelligent control system through electric signals. The flow metering regulating valve can achieve the functions of automatically adjusting the valve and measuring the flow, and has the advantages of being high in efficiency, good in real-time performance, smallin error and wide in flow measuring range.
Description
technical field [0001] The invention belongs to the field of pipeline fluid process control valves, in particular to a flow metering regulating valve. Background technique [0002] Most of the process control valves used in petroleum and natural gas, chemical industry, electric power and other industries are manual or electric control valves, which do not have the function of fluid flow measurement. implement this function. When it is necessary to control the flow of fluid in the pipeline, the data of the flowmeter is manually read as a feedback signal, and the opening of the valve is manually adjusted to realize the flow adjustment of the fluid in the pipeline. This operation method has low efficiency, poor real-time performance and large human errors. [0003] In addition, there are also cases where the flowmeter and valve control are separated for combined use, but this situation will lead to a bulky instrument and require a variety of flowmeter ranges to meet various ap...
Claims
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IPC IPC(8): F16K31/04F16K1/00F16K37/00G05D7/06
CPCF16K1/00F16K31/046F16K37/0091G05D7/0635
Inventor 王士兴史宁辉李立川刘涛凤云龙
Owner XIAN ANCN INTELLIGENT INSTR