[Instrument latest patent] A heat meter or water meter comprehensive verification device
[Chinese instrument network meter patent] creative limit, instrumentation invention. Today we introduce a national patent for invention—a comprehensive heat meter or meter verification device. The patent was applied by Quanzhou Qiyang Electromechanical Co., Ltd. and it was authorized on February 22, 2017.
Description of the Invention The utility model relates to a test device for a heat meter or a water meter, in particular to a comprehensive verification device for a heat meter or a water meter.
BACKGROUND OF THE INVENTION The verification of a heat meter or a water meter is a verification of the product quality of a heat meter or a water meter, including the accuracy test and durability test of a heat meter or water meter. The traditional heat meter or water meter verification device has a relatively single function, and usually can only perform the accuracy test or durability test. The completion of the heat meter or water meter verification requires the use of multiple devices to complete, and the verification of the heat meter and the water meter The devices used for verification are also different, and the cost of verification is relatively high.
For example, a high-accuracy water meter verification and verification device disclosed in Chinese Utility Model Patent Publication No. CN202442758U can only detect the accuracy of the water meter, fail to detect the durability of the meter, and fail to detect the heat meter. Another example is a PLC-based instrument durability test device disclosed in Chinese Utility Model Patent Publication No. CN204902964U, which can only test the durability of the instrument and cannot detect the accuracy of the instrument.
In addition, the accuracy of the verification device itself also affects the verification results. The traditional heat meter or water meter test device usually needs to be calibrated with other equipment, and the calibration is inconvenient.
SUMMARY OF THE INVENTION The purpose of the present invention is to provide a heat meter or water meter comprehensive verification device with a relatively low verification cost.
In order to achieve the above objectives, the utility model adopts the following technical solutions: a comprehensive verification device for a heat meter or a water meter, including a constant temperature water tank, a water pump, a voltage regulator module, a clamper, a standard meter, a flow control module and a reversing valve The reversing valve has a first water outlet and a second water outlet. The first water outlet is connected to the water return port of the constant temperature water tank, and a weighing module is connected to the second water outlet. A control valve is connected to the water outlet of the module, and the water outlet of the control valve is connected to the water return port of the thermostatic water tank.
The utility model is a schematic diagram of the structure of a comprehensive verification device for a heat meter or a water meter With the above technical solution, by setting up the standard table and the flow control module and the weighing module at the same time, the verification device of the utility model can not only detect the accuracy and durability of the heat meter, but also can perform the accuracy and durability of the water meter. The test can not only use the standard meter method to detect the heat meter or the water meter, but also can use the weighing method to check the heat meter or the water meter. It can be used by multiple machines and the verification cost is relatively low.
In addition, the standard table and the flow control module of the utility model can be calibrated with a weighing module, and no additional calibration equipment is required, and calibration is convenient.
As an improvement of the utility model, a water heater is installed in the thermostatic water tank. Through the above improvements, it is easy to heat and ensure that the water in the thermostatic water tank is a constant temperature water. The thermostatic water tank includes a box body and a plurality of anti-jammer plates located in the box body and arranged parallel to each other, and the anti-jammer plates are alternately and fixedly connected at both ends of the box body. Through the above improvements, it is possible to prevent the flow of the water in the constant-temperature water tank from being disturbed when the flow rate of the return water is too large, so as to avoid that the temperature of the outlet water of the constant-temperature water tank is not constant. The standard table and the flow control module include an electromagnetic flow meter and a flow regulating valve connected in series to respectively communicate with the electromagnetic flow meter and the flow regulating valve. Through the above improvements, electromagnetic flow meters, control systems, and flow control valves can form a closed-loop control system to ensure that the flow rate meets the requirements.
The flow regulating valve is an electrically controlled straight stroke regulating valve. The electronically controlled linear stroke control valve has a relatively fast adjustment speed and, due to the use of a straight-stroke motor drive, the response speed is relatively faster than conventional flow control valves such as electric control valves and pneumatic diaphragm valves. The controller first calculates and obtains the flow curve according to the preset diameter of the heat meter or water meter to be measured, the test type, and the test standard, and uses the flow value at the next moment of the current time as the flow curve according to the flow curve during the test process. The target value adjusts the opening of the flow regulating valve. Through the above improvements, accurate flow control is ensured and the accuracy of test results is improved. The weighing module includes a weighing tank and an electronic scale matched with the weighing tank, the water outlet of the weighing module is located at the lower end of the weighing tank, and the upper end of the weighing tank is provided with an opening. A splash-proof water bucket is interspersed in the opening, a connecting plate is fixedly connected to an upper end of the splash-proof water bucket, and a connecting pipe between the second water outlet and the weighing module passes through the connecting plate and The connection plate is fixedly connected. By setting splash proof buckets, preventing the water from the pipes from flowing directly into the weighing tank can affect the accuracy of the weighing results.
The weighing tank is in communication with the controller. With the above improvements, it is easy to calibrate the standard meter and the flow control module. The standard table and the flow control module have a calibration function, and the calibration function is implemented by flowing the water flow sequentially through the electromagnetic flowmeter, the reversing valve, the weighing tank, and the control valve. The constant-temperature water tank, while the electromagnetic flowmeter transmits the obtained flow information to the controller, the weighing tank transmits the obtained quality information to the controller, and the controller obtains the quality information according to The volumetric flow rate information is calculated and compared with the obtained flow rate information to obtain an error, and the electromagnetic flowmeter is calibrated according to the error. With the above improvements, automatic calibration of the standard table and flow control module is achieved.
For more information, please download the full specification of the patent.
More information on the latest technology of meter technology patents, please continue to pay attention to [instrument patents]
Description of the Invention The utility model relates to a test device for a heat meter or a water meter, in particular to a comprehensive verification device for a heat meter or a water meter.
BACKGROUND OF THE INVENTION The verification of a heat meter or a water meter is a verification of the product quality of a heat meter or a water meter, including the accuracy test and durability test of a heat meter or water meter. The traditional heat meter or water meter verification device has a relatively single function, and usually can only perform the accuracy test or durability test. The completion of the heat meter or water meter verification requires the use of multiple devices to complete, and the verification of the heat meter and the water meter The devices used for verification are also different, and the cost of verification is relatively high.
For example, a high-accuracy water meter verification and verification device disclosed in Chinese Utility Model Patent Publication No. CN202442758U can only detect the accuracy of the water meter, fail to detect the durability of the meter, and fail to detect the heat meter. Another example is a PLC-based instrument durability test device disclosed in Chinese Utility Model Patent Publication No. CN204902964U, which can only test the durability of the instrument and cannot detect the accuracy of the instrument.
In addition, the accuracy of the verification device itself also affects the verification results. The traditional heat meter or water meter test device usually needs to be calibrated with other equipment, and the calibration is inconvenient.
SUMMARY OF THE INVENTION The purpose of the present invention is to provide a heat meter or water meter comprehensive verification device with a relatively low verification cost.
In order to achieve the above objectives, the utility model adopts the following technical solutions: a comprehensive verification device for a heat meter or a water meter, including a constant temperature water tank, a water pump, a voltage regulator module, a clamper, a standard meter, a flow control module and a reversing valve The reversing valve has a first water outlet and a second water outlet. The first water outlet is connected to the water return port of the constant temperature water tank, and a weighing module is connected to the second water outlet. A control valve is connected to the water outlet of the module, and the water outlet of the control valve is connected to the water return port of the thermostatic water tank.
The utility model is a schematic diagram of the structure of a comprehensive verification device for a heat meter or a water meter
In addition, the standard table and the flow control module of the utility model can be calibrated with a weighing module, and no additional calibration equipment is required, and calibration is convenient.
As an improvement of the utility model, a water heater is installed in the thermostatic water tank. Through the above improvements, it is easy to heat and ensure that the water in the thermostatic water tank is a constant temperature water. The thermostatic water tank includes a box body and a plurality of anti-jammer plates located in the box body and arranged parallel to each other, and the anti-jammer plates are alternately and fixedly connected at both ends of the box body. Through the above improvements, it is possible to prevent the flow of the water in the constant-temperature water tank from being disturbed when the flow rate of the return water is too large, so as to avoid that the temperature of the outlet water of the constant-temperature water tank is not constant. The standard table and the flow control module include an electromagnetic flow meter and a flow regulating valve connected in series to respectively communicate with the electromagnetic flow meter and the flow regulating valve. Through the above improvements, electromagnetic flow meters, control systems, and flow control valves can form a closed-loop control system to ensure that the flow rate meets the requirements.
The flow regulating valve is an electrically controlled straight stroke regulating valve. The electronically controlled linear stroke control valve has a relatively fast adjustment speed and, due to the use of a straight-stroke motor drive, the response speed is relatively faster than conventional flow control valves such as electric control valves and pneumatic diaphragm valves. The controller first calculates and obtains the flow curve according to the preset diameter of the heat meter or water meter to be measured, the test type, and the test standard, and uses the flow value at the next moment of the current time as the flow curve according to the flow curve during the test process. The target value adjusts the opening of the flow regulating valve. Through the above improvements, accurate flow control is ensured and the accuracy of test results is improved. The weighing module includes a weighing tank and an electronic scale matched with the weighing tank, the water outlet of the weighing module is located at the lower end of the weighing tank, and the upper end of the weighing tank is provided with an opening. A splash-proof water bucket is interspersed in the opening, a connecting plate is fixedly connected to an upper end of the splash-proof water bucket, and a connecting pipe between the second water outlet and the weighing module passes through the connecting plate and The connection plate is fixedly connected. By setting splash proof buckets, preventing the water from the pipes from flowing directly into the weighing tank can affect the accuracy of the weighing results.
The weighing tank is in communication with the controller. With the above improvements, it is easy to calibrate the standard meter and the flow control module. The standard table and the flow control module have a calibration function, and the calibration function is implemented by flowing the water flow sequentially through the electromagnetic flowmeter, the reversing valve, the weighing tank, and the control valve. The constant-temperature water tank, while the electromagnetic flowmeter transmits the obtained flow information to the controller, the weighing tank transmits the obtained quality information to the controller, and the controller obtains the quality information according to The volumetric flow rate information is calculated and compared with the obtained flow rate information to obtain an error, and the electromagnetic flowmeter is calibrated according to the error. With the above improvements, automatic calibration of the standard table and flow control module is achieved.
For more information, please download the full specification of the patent.
More information on the latest technology of meter technology patents, please continue to pay attention to [instrument patents]
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