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[Meter's latest patent] water meter verification device and water meter verification system
[Chinese instrument network meter patent] creative limit, instrumentation invention. Today, we introduce a national patent for invention—water meter verification device and water meter verification system. The patent was applied for by the Changzhou Light Industry Vocational Technical College and was authorized on December 29, 2017.
Content Description
The invention relates to the field of meter verification, in particular to a water meter verification device and a water meter verification system.
Background of the invention
The water meter is a measuring instrument that the measurement instrument is a compulsory test, which directly affects the accuracy of measurement and settlement of the water supply unit and the interests of the consumers. The water meter verification device is used to complete the verification of the measuring instrument and ensure that the metering industry is accurate and reliable. Now smart water meters, IC card water meters and other functions with billing, automatic water cut and other new types of water meters have become common industrial and residential water meters, existing water meter verification equipment can not quickly and easily operate the water meter automatic water cut function test.
Summary of the Invention
The purpose of the present invention is to provide a water meter verification device and a water meter verification system, which can use a set of water supply devices to supply water to a plurality of water meter detection channels to perform water meter verification, and at the same time, a plurality of water meters can be installed in each meter detection channel, and the water meter is solved. The problems of low efficiency and low utilization rate of water supply equipment.
The figure is a schematic structural diagram of a water meter verification device according to an embodiment of the present invention
A water meter verification device includes a water supply device, a first water meter detection channel, a second water meter detection channel, a water meter influent detection device, and a water meter outflow detection device. The first water meter detection channel and the second water meter detection channel are connected to the water supply device, and the first water meter detection channel may be installed with M water meters, and the second water meter detection channel may be installed with N water meters, M and N are greater than or equal to 1; Integer. The water meter influent detection device is used for detecting the metered inflow of each of the M water meters and/or N water meters, and the water meter outflow detection device is used to detect the actual water outflow of each of the M water meters and/or N water meters. . By comparing the metered inflow and actual outflow of each meter, the verification results that characterize the cumulative flow of each meter can be obtained.
In an alternative embodiment of the present invention, the water supply system includes a water tank, a water pump, and a surge tank, and the water pump is connected to the tank and the surge tank. The water tank is used to store the test water, the water pump is used to pressurize the water in the water tank, and the pressure tank is used to balance the water volume and pressure in the pipeline.
The first water meter detection channel includes a first water meter load channel and a first flow controller. The second water meter detection channel includes a second water meter load channel and a second flow controller. The first water meter carrying passage is connected with the surge tank, and the first flow controller is connected with the first water meter carrying passage. The second water meter carrying passage is connected with the first flow controller, and the second flow controller is connected with the second water meter carrying passage. The first water meter carrying passage and the second water meter carrying passage are used to control the passage of the measuring water, and the first flow controller and the second flow controller are used to control and convert the water flow through the measurement.
The first flow controller and the second flow controller are intelligent flow control valves. The first water meter carrying passage includes a first water inlet valve, a first water meter mounting tube and a first pressure resistance test section, and the second water meter bearing passage includes a second water inlet valve, a second water meter mounting tube and a second pressure resistance test section. One end of the first water meter load channel is connected to the surge tank, and the other end is connected to the first withstand voltage test section. The first water intake valve is disposed between the first water meter installation pipe and the surge tank, and the first water meter mounting pipe is at one end. A flow controller is connected, and the other end is connected with the second pressure resistance testing part, and the second water inlet valve is arranged between the first flow controller and the first water meter mounting tube. The first flow controller is connected to the first withstand voltage tester. One end of the second flow controller is connected to the second withstand voltage test section, and the other end is connected to the water meter outlet detection device. Among them, the first water meter mounting tube and the second water meter mounting tube are used to install the water meter and pass the measurement water. The first water meter mounting pipe includes a first DC connecting pipe, a first disconnecting current detecting pipe, and M first water meter mounting points installed on the first DC connecting pipe. The second water meter mounting pipe includes a second DC connection pipe, a second current interruption detection pipe, and an N second water meter installation point disposed on the second DC connection pipe. The first DC connection pipe and the second DC connection pipe are used to install the water meter and the water for measurement. The first DC connection pipe is divided into M+1 parts by the M first water meter installation points, and the first one is connected to the first one. The second part of the DC connection pipe is connected, and the other end is connected with the first withstand voltage test part, and is connected with the other M parts of the first DC connection pipe one by one. The first stop-flow detection pipe is between every two connection parts. A first cut-off test valve is provided. The second DC connecting pipe is divided into N+1 parts by N second water meter mounting points. One end of the second cut-off detecting pipe is connected to the second part of the second DC connecting pipe, and the other end is connected to the second withstand voltage test part. And is connected to the other N parts of the second flow connection pipe one by one, and the second interruption detection tube is provided with a second interruption test valve between every two connection points. Among them, the first cut-off detection tube and the second cut-off detection tube are used to detect the flow-cut function of the water meter.
The first withstand voltage test section includes a first pressure test valve, a first pressure test pump, a first electrical contact pressure gauge, and a first pressure relief valve. The second withstand voltage test section includes a second pressure test valve, a second pressure test pump, a second electrical contact pressure gauge, and a second pressure relief valve. The first pressure resistance test part is disposed between the first water meter mounting tube and the first flow controller, and the second pressure resistance test part is disposed between the second water meter installation tube and the second flow controller. Among them, the first pressure test valve and the second pressure test valve are used to close the pipeline during the pressure test, and the first pressure test pump and the second pressure test pump are used to adjust the water pressure when the pipeline is closed during the pressure test. The first electrical contact pressure and the second electrical contact pressure gauge are used to detect the pressure parameters for obtaining the measurement water in the first water meter mounting tube and the second water meter mounting tube, respectively. The water meter outlet detection device includes an inlet portion, an actual water amount data acquirer, and an outlet portion. The water inlet is connected with the first flow controller and the second flow controller, and the actual water data acquirer is matched with the inlet portion according to the measurement mode. The water outlet can be opened and closed, with one end connected to the inlet and the other end connected to the tank. The actual water data acquirer is a smart electromagnetic flowmeter. A water meter verification system is characterized in that the water meter verification device and the control system are included, and the system is used to control the meter verification device to complete the verification of the meter, and the control system is connected to the meter verification device.
The beneficial effects of the embodiments of the present invention are: an embodiment of the present invention provides a water meter verification device and a water meter verification system that performs a water metering test. A water meter is installed on a first water meter detection channel and/or a second water meter test channel, and a regulating valve is provided. After the water meter verification device is started, the measurement water stored in the water tank is sent to the water meter inflow detection device via the water pump, and after passing through the first water meter load channel and/or the second water meter load channel installed with the water meter, the water meter water inflow detection device is Obtain the metered inflow of the water meter under different flow control, then measure the water flow into the water meter outflow detection device to obtain the actual water outflow of the meter, and compare the measured influent amount and the actual outflow amount under different flow conditions to obtain different flow rates to characterize the cumulative flow of each meter. Is the correct verification result. After the cumulative flow detection of the water meter is performed, the function of breaking the flow of the water meter is verified through the first flow interruption detection tube and the second interruption flow detection tube respectively disposed on the first water meter bearing passage and the second water meter bearing passage. The water meter verification system can monitor and control the water meter verification device to complete the water meter verification. In the embodiment of the present invention, a plurality of water meter detection channels provided with a cut-off detection tube share a water supply device, and while ensuring the utilization of the kinetic energy of the water supply device, the water meter verification device can quickly verify the water flow cut-off function of the water meter.
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