CN209945520U

CN209945520U - Orifice flowmeter testing arrangement

Info

Publication number: CN209945520U
Application number: CN201921099178.0U
Authority: CN
Inventors: 周定山; 祝新生; 江再宽
Original assignee: SUZHOU AODE MACHINERY CO Ltd
Current assignee: Suzhou Aode high end equipment Co.,Ltd.
Priority date: 2019-07-14
Filing date: 2019-07-14
Publication date: 2020-01-14
Anticipated expiration: 2029-07-14

Abstract

The utility model discloses a diaphragm flowmeter testing arrangement, its include with the medium case that passes through back flow and output tube formation circulation circuit by the test piece, with medium case becomes circulation circuit's cold and hot all-in-one, sets up frequency conversion pump, setting on the output tube are in the medium case with circulating pump and controller on the cold and hot all-in-one intercommunication pipeline, be provided with on the output tube with controller electrical connection's first stop valve and first pressure sensor, be provided with on the back flow with controller electrical connection's second stop valve, second pressure sensor and flow sensor. The utility model can automatically adjust and set the flow, automatically collect the pressure data of the inlet and the outlet, and store the pressure data in the computer, so as to improve the efficiency and the intelligent degree of the test operation; and the temperature of different media can be regulated to measure a flow pressure difference relation equation at different temperatures to serve as a basis for temperature correction.

Description

Orifice flowmeter testing arrangement

[ technical field ] A method for producing a semiconductor device

The utility model belongs to the technical field of check out test set, especially, relate to an automatic orifice flowmeter testing arrangement that can adjust medium temperature.

[ background of the invention ]

The orifice plate flowmeter has the advantages of simple structure principle, wide temperature and pressure resistant range and high reliability, and has technical advantages when being applied to certain specific industries. Before the orifice-plate flowmeter leaves factory, the relation between the differential pressure and the flow is generally checked and calibrated according to different medium types and different medium temperatures, so that the corresponding flow values under different differential pressures need to be tested, and then a flow differential pressure equation is synthesized through data fitting and used as an algorithm basis of a flow calculator.

The traditional test bench generally adopts a mechanical pressure gauge to acquire the front and back pressure of a tested device. The disadvantage of this test bench is that it is usually necessary to manually adjust the flow and to manually record the pressure-flow data, and the degree of intelligence and automation is not high. Furthermore, the temperature of the medium cannot be controlled in a regulated manner.

Therefore, there is a need to provide a new orifice plate flowmeter test device to solve the above problems.

[ Utility model ] content

The utility model discloses a main aim at provides a diaphragm flowmeter testing arrangement, can automatic adjustment set for the flow, and can automatic acquisition import and export pressure data, can adjust different medium temperature to measure flow differential pressure relation equation under the different temperatures, improve test operation's efficiency and intelligent degree.

The utility model discloses a following technical scheme realizes above-mentioned purpose: a pore plate flowmeter testing device comprises a medium box, a cooling and heating all-in-one machine, a variable frequency pump, a circulating pump and a controller, wherein the medium box and a tested part form a circulating loop through a return pipe and an output pipe, the cooling and heating all-in-one machine forms a circulating loop with the medium box, the variable frequency pump is arranged on the output pipe, the circulating pump is arranged on a pipeline through which the medium box and the cooling and heating all-in-one machine are communicated, a first stop valve and a first pressure sensor which are electrically connected with the controller are arranged on the output pipe, and a second stop valve, a second pressure sensor and a flow sensor which are electrically connected with the controller are arranged.

Furthermore, a thermometer electrically connected with the controller is arranged on the medium box.

Furthermore, a data storage module and a communication module are arranged in the controller, so that data can be stored and transmitted to an upper computer.

Furthermore, the first stop valve and the second stop valve are close to the inlet and outlet ends of the tested piece, are controlled by a pneumatic or electric actuator, and are switched on and off at the controller end.

Further, the first pressure sensor and the second pressure sensor are digital pressure sensors.

Further, the flow sensor is an electronic flow sensor.

Compared with the prior art, the utility model relates to a diaphragm flowmeter testing arrangement's beneficial effect lies in: the flow can be automatically adjusted and set, the pressure data of the inlet and the outlet can be automatically collected and stored in a computer, so that the efficiency and the intelligent degree of the test operation are improved; and the temperature of different media can be regulated to measure a flow pressure difference relation equation at different temperatures to serve as a basis for temperature correction.

[ description of the drawings ]

Fig. 1 is a schematic control diagram according to an embodiment of the present invention;

the figures in the drawings represent:

1 a return pipe; 2, outputting a pipe; 3, a medium box; 4, a cold-hot integrated machine; 5, a variable frequency pump; 6 circulating pump; 7 a first stop valve; 8 a first pressure sensor; 9 a second stop valve; 10 a second pressure sensor; 11 a flow sensor; 12 a controller; 13 thermometer.

[ detailed description ] embodiments

Example (b):

referring to fig. 1, the present embodiment is an orifice flowmeter testing apparatus 100, which includes a medium tank 3 forming a circulation loop with a tested piece through a return pipe 1 and an output pipe 2, a cooling and heating integrated machine 4 forming a circulation loop with the medium tank 3, a variable frequency pump 5 disposed on the output pipe 2, a circulation pump 6 disposed on a pipeline connecting the medium tank 3 and the cooling and heating integrated machine 4, and a controller 12, wherein the output pipe 2 is provided with a first stop valve 7 and a first pressure sensor 8 electrically connected to the controller 12, and the return pipe 1 is provided with a second stop valve 9, a second pressure sensor 10, and a flow sensor 11 electrically connected to the controller 12.

The medium box 3 is provided with a thermometer 13 electrically connected to the controller 12.

The controller 12 is provided with a data storage module and a communication module, and can realize data storage and transmission to an upper computer.

The first stop valve 7 and the second stop valve 9 are close to the inlet and outlet ends of the tested piece, are controlled by a pneumatic or electric actuator, and realize switch operation at the end of the controller 12. Through the setting of stop valve, be convenient for change different tested devices.

The variable frequency pump 5 is automatically controlled through the set flow.

In this embodiment, the first pressure sensor 8 and the second pressure sensor 10 are digital pressure sensors for measuring the front and rear pressures of the test piece, and the flow sensor 11 is an electronic flow sensor for automatically adjusting the flow rate of the inverter pump 5 according to the set flow rate, thereby realizing automation and stable set flow rate.

The temperature of the medium box 3 is controlled by adopting the independent cold and hot integrated machine 4, so that different stable medium tests can be realized.

During testing, a tested object is connected through an inlet and an outlet of a tested piece, then the first stop valve 7 and the second stop valve 9 are opened through the controller 12, the testing flow and the testing temperature are set on a human-computer interface of the controller 12, the variable frequency pump 5 responds to an instruction of the controller 12, the frequency is operated to a proper degree through PID control, and the actual flow is close to the set flow; the cooling-heating all-in-one machine 4 controls the temperature of the medium inside the medium box 3 to be close to a set value by internal control of the cooling-heating all-in-one machine 4 in response to an instruction of the controller 12. The controller 12 reads the inlet and outlet pressure of the measured object through the first pressure sensor 8 and the second pressure sensor 10, the controller 12 reads the flow rate passing through the measured object through the flow sensor 11, and the controller 12 reads the temperature of the test medium through the thermometer 13 and stores the pressure, flow rate and temperature data. The number and geometry of the unit under test are input to the controller 12, and the controller 12 may form a record for each test operation and output a test report.

The orifice plate flowmeter testing device 100 has high automation degree, and reduces the labor intensity; in addition, the intelligent degree is high, and convenient data processing and automatic test report generation are facilitated.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. The utility model provides a diaphragm flowmeter testing arrangement which characterized in that: the device comprises a medium box forming a circulation loop with a tested part through a return pipe and an output pipe, a cold and hot all-in-one machine forming a circulation loop with the medium box, a variable frequency pump arranged on the output pipe, a circulating pump arranged on a communication pipeline of the medium box and the cold and hot all-in-one machine, and a controller, wherein a first stop valve and a first pressure sensor electrically connected with the controller are arranged on the output pipe, and a second stop valve, a second pressure sensor and a flow sensor electrically connected with the controller are arranged on the return pipe.

2. The orifice plate flowmeter test device of claim 1, wherein: and a thermometer electrically connected with the controller is arranged on the medium box.

3. The orifice plate flowmeter test device of claim 1, wherein: the controller is provided with a data storage module and a communication module, and can realize data storage and transmission to an upper computer.

4. The orifice plate flowmeter test device of claim 1, wherein: the first stop valve and the second stop valve are close to the inlet and outlet ends of the tested piece, are controlled by a pneumatic or electric actuator, and are switched on and off at the controller end.

5. The orifice plate flowmeter test device of claim 1, wherein: the first pressure sensor and the second pressure sensor are digital pressure sensors.

6. The orifice plate flowmeter test device of claim 1, wherein: the flow sensor is an electronic flow sensor.