Pipeline flow measuring device
A flow measurement device and pipeline technology, applied in the direction of volume/mass flow generated by mechanical effects, can solve the problems of short collision life of the flowmeter, weak pipeline signal, difficult measurement, etc., and achieve low cost, improved accuracy, and convenient use. Effect
Pending Publication Date: 2021-04-20
BEIJING DRAINAGE GRP CO LTD
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Problems solved by technology
[0002] At present, the water flow monitoring in the urban drainage pipe network system is very important. Many pipes are underground sealed pipes, and it is difficult to measure them. The general electromagnetic flowmeter and the clamp-on ultrasonic flowmeter are only suitable for the pipe is full. measurement in the case of a pipe; the contact flowmeter is easily collided by impurities and hard objects in the sewage and has a short life; the signal in the pipeline is weak, and it is usually necessary to set up a base station at a short distance to transmit the signal, and the project volume is large
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[0059] Such as Figure 1 to Figure 4 As shown, the present invention provides a pipeline flow measurement device, comprising:
[0060] Two weir plates 1, the weir plate 1 is surrounded by the first side line 2, the second side line 3 and the third side line 4, the first side line 2 is an arc side line, and the radius of the arc side line matches the inner diameter of the pipe 5 , the second sideline 3 and the third sideline 4 are straight sidelines, one end of the second sideline 3 and the third sideline 4 are connected and form an angle, and the other ends of the second sideline 3 and the third sideline 4 are respectively connected with two ends of the arc sideline end connected;
[0061] The two weir plates 1 are arranged symmetrically, and one end of the two weir plates 1 is hinged, so that the arc edges of the two weir plates 1 can form a semicircle, and at the same time, an included angle is formed between the second edge lines 3 of the two weir plates 1;
[0062] The l...
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The invention provides a pipeline flow measuring device, which relates to the technical field of flow measurement, and comprises two weir plates. Each weir plate is defined by a first side line, a second side line and a third side line, the first side line is an arc side line, the radius of the arc side line is matched with the inner diameter of a pipeline, and the second side line and the third side line are straight side lines; one ends of the second side line and the third side line are connected to form an included angle, and the other ends of the second side line and the third side line are respectively connected with two ends of the arc side line; the two weir plates are symmetrically arranged, and one ends of the two weir plates are hinged, so that the arc side lines of the two weir plates can form a semicircle, and meanwhile, an included angle is formed between the second side lines of the two weir plates; and a liquid level sensor is arranged along the second side line of the at least one weir plate. According to the device, the triangular weir flow measurement principle is utilized, deformation of the device can be achieved through the two hinged weir plates, the device can be conveniently placed into a pipeline through an inspection well, use is convenient, and measurement is accurate.
Description
technical field [0001] The invention belongs to the technical field of flow measurement, and more specifically relates to a pipeline flow measurement device. Background technique [0002] At present, the water flow monitoring in the urban drainage pipe network system is very important. Many pipes are underground sealed pipes, and it is difficult to measure them. The general electromagnetic flowmeter and the clamp-on ultrasonic flowmeter are only suitable for the pipe is full. The measurement in the case of a pipe; the contact flowmeter is easily collided by impurities and hard objects in the sewage and has a short life; the signal in the pipeline is weak, and it is usually necessary to set up a base station in a short distance to transmit the signal, and the engineering volume is large. Contents of the invention [0003] The purpose of the present invention is to provide a pipeline flow measurement device for the deficiencies in the prior art. Utilizing the triangular weir...
Claims
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Inventor 杨超王增义赵东方闫睿徐克举关萍曾新宇李银
Owner BEIJING DRAINAGE GRP CO LTD