Continuous negative-pressure water supplementing metering device and water supplementing metering method thereof
A metering device, water storage device technology, applied in the direction of measuring devices, suspension and porous material analysis, instruments, etc., can solve the problems of many disputes, large errors, long test time, etc., to achieve short measurement time, High precision, simple and reasonable mechanism
Pending Publication Date: 2019-12-24
POWERCHINA MUNICIPAL CONSTR GRP CO LTD
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Problems solved by technology
[0003] At present, in the water seepage experiment of the reservoir or the pipeline, the artificial ruler is mainly used to measure the change of the liquid level height; the water seepage q is obtained by multiplying the measured height by the cross-sectional area of the reservoir or the pipeline; but this method is not suitable for irregular Reservoirs or pipes with larger shapes and areas have larger errors, longer test times, and more disputes over the results
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[0031] The present invention takes the seepage test of the pipeline as the water area to be tested as an example, and describes a continuous negative pressure water replenishment metering device. In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given together with the attached The diagram is detailed as follows:
[0032] Such as Figure 1 to Figure 4 As shown, the present invention discloses a continuous negative pressure water supplement metering device, which includes a liftable support 1 arranged above the mountain pass of the pipeline 6, a weighing device 2 is placed at the center of the upper end of the support 1, and a weighing device 2 is suspended below The water storage device 3 with the opening facing downwards; the opening edge of the lower end of the water storage device 3 is flush with the pipeline liquid level 61; since the water storage device 3 is filled with water, its intern...
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The invention, relates to the technical field of municipal engineering measurement, particularly discloses a continuous negative-pressure water supplementing metering device and a water supplementingmetering method thereof. The continuous negative-pressure water supplementing metering device comprises a liftable bracket arranged above a to-be-measured water area. A weighing device is arranged atthe upper end of the bracket; a transparent water storage device with a downward opening is suspended below the weighing device and is filled with water; and the lower opening of the water storage device is flush with the liquid level of the to-be-measured water area. A sawtooth structure is formed at the opening in the lower end of the water storage device. Among all adjacent saw teeth, one saw tooth has an inclination angle towards the inner side of the water storage device and another saw tooth has an inclination angle towards the outer side of the water storage device. Certain space existsbetween every two adjacent sawteeth in the circumferential direction. A protective ring is connected to the outer side of the water storage device; and the lower end of the protective ring is arranged below the opening of the water storage device. The continuous negative-pressure water supplementing metering device having a simple and reasonable in structure is convenient to use. Compared with the existing method for directly measuring water surface height drop through a ruler, the disclosed method has advantages of high accuracy and extremely short time for measurement.
Description
technical field [0001] The invention relates to the technical field of municipal engineering measurement, in particular to a continuous negative pressure water replenishment metering device and a water replenishment metering method. Background technique [0002] At present, in municipal engineering, the seepage test requirements of the reservoir conform to the "Code for Construction and Acceptance of Water Supply and Drainage Structure Engineering", and the requirements of the seepage test of pipelines comply with the "Code for Construction and Acceptance of Water Supply and Drainage Pipeline Engineering". After the acceptance of the appearance quality of the pipeline, all the reserved holes should be sealed to prevent water seepage; at the same time, the reservoir or pipeline should be soaked in water for no less than 24 hours, and the time will start when the test water head reaches the specified water head, and the water seepage should be observed continuously. Water shou...
Claims
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Login to View More IPC IPC(8): G01N15/08
CPCG01N15/0806Y02A20/00
Inventor 何占颂李川振王华侨罗涛
Owner POWERCHINA MUNICIPAL CONSTR GRP CO LTD