CN214096205U

CN214096205U - Multi-parameter flowmeter

Info

Publication number: CN214096205U
Application number: CN202023068409.7U
Authority: CN
Inventors: 成鹏机; 闫建武; 薛启
Original assignee: Xi'an Aoyida Petroleum Technology Co ltd
Current assignee: Xi'an Aoyida Petroleum Technology Co ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-08-31
Anticipated expiration: 2030-12-18

Abstract

The utility model provides a multi-parameter flow meter, include: the two ends of the connecting pipe are connected with the pipeline, a pore plate is arranged in the connecting pipe, and the pipe wall of the connecting pipe is provided with a first pressure taking port and a second pressure taking port; the multi-parameter transmitter comprises a front-end pressure acquisition part, a differential pressure acquisition part and a conversion part, wherein the conversion part is used for converting signals acquired by the front-end pressure acquisition part and the differential pressure acquisition part into electric signals respectively; the control device is used for processing and calculating signals of the multi-parameter transmitter to obtain flow data; and the power supply is connected with the multi-parameter transmitter and the control device to supply power to the multi-parameter transmitter and the control device. The utility model discloses a shortcoming that the shared space of present flowmeter preparation and installation technology is complicated and installation is big can be overcome to the multi-parameter flowmeter.

Description

Multi-parameter flowmeter

Technical Field

The utility model relates to a fluid measurement field specifically is a multi-parameter flow meter.

Background

The flowmeter is widely applied to the field of industry and scientific research, wherein the differential pressure flowmeter is a commonly used flowmeter, as shown in fig. 1, the differential pressure flowmeter is generally provided with a differential pressure transmitter 11 and a connecting pipe 12 connected with a pipeline, and two differential pressure guide interfaces 13 are arranged on the connecting pipe 12 to guide media in the pipeline to the flowmeter, so that the flowmeter can acquire pressure signals. The collected differential pressure signals of the front end and the rear end are transmitted to a meter head, namely a control device, so as to calculate the flow in the pipeline. Since the differential pressure flow rate is also easily affected by the head static pressure, the head static pressure in the pipe must be detected by the pressure detection device 14, and therefore, the pipe must be separately provided with a head pressure port 15. At the same time, since the pressure detection device 14 needs to be supplied with power from the power supply 120 of the differential pressure flow meter, the pressure electric interface 16 needs to be provided in the flow meter, and the pressure detection device needs to be supplied with power from the battery of the differential pressure flow meter. If the temperature transmitter 17 needs to be added, a temperature electrical interface 18 connected with the temperature transmitter 17 needs to be arranged, and a temperature sensing interface 19 is arranged on the connecting pipe 12. The manufacture and installation process is undoubtedly increased by arranging various pressure guide interfaces and electrical interfaces and installing a pressure detection device and a temperature sensing device. In addition, the pressure detection device and the temperature sensing device are supplied with power by the battery of the differential pressure flowmeter, and it is necessary to install an electric wire and an electric protection tube 110 outside the electric wire, which also occupies a certain installation space.

SUMMERY OF THE UTILITY MODEL

The utility model provides a multi-parameter flowmeter can overcome the complicated and big shortcoming of the shared space of installation of current flowmeter preparation and mounting process.

The utility model discloses a multi-parameter flow meter, include:

the two ends of the connecting pipe are connected with the pipeline, a pore plate is arranged in the connecting pipe, a first pressure taking port and a second pressure taking port are arranged on the pipe wall of the connecting pipe, the first pressure taking port is positioned at the upstream of the pore plate, and the second pressure taking port is positioned at the downstream of the pore plate in the flowing direction of a medium in the pipeline;

the multi-parameter transmitter comprises a front-end pressure acquisition part, a differential pressure acquisition part and a conversion part, wherein the conversion part is used for converting signals acquired by the front-end pressure acquisition part and the differential pressure acquisition part into electric signals respectively;

the control device receives the signals sent by the multi-parameter transmitter, and processes and calculates the signals to obtain flow data;

and the power supply is connected with the multi-parameter transmitter and the control device and supplies power to the multi-parameter transmitter and the control device.

Preferably, the connecting pipe is further provided with a temperature sensing interface, the temperature sensing interface is connected with a temperature transmitter, the temperature transmitter is connected with the control device and converts collected temperature signals into electric signals and transmits the electric signals to the control device, the temperature transmitter is connected with the power supply through a power line, and an electric protection pipe wraps the power line.

Preferably, the multi-parameter transmitter further comprises a temperature acquisition part for acquiring the temperature of the first pressure acquisition port or the second pressure acquisition port, and the conversion part converts the temperature signal acquired by the temperature acquisition part into an electric signal and transmits the electric signal to the control device.

Preferably, the control device is provided with a display device for displaying the front end pressure, the front end differential pressure, the temperature, and the flow rate data.

The utility model discloses a multi-parameter flow meter compares with prior art and has following beneficial effect:

the utility model discloses a multi-parameter flowmeter need not set up the pressure mouth of getting of front end pressure alone on the connecting pipe, also need not set up the electricity connection mouth that supplies power to front end pressure transmitter on the flowmeter yet, need not install front end pressure transmitter alone yet, consequently also need not reserve the space of installing front end pressure transmitter yet, not only makes the manufacture craft of flowmeter more simplified, still makes the structure of flowmeter compacter, has reduced the space that the installation need occupy.

Drawings

Fig. 1 is a schematic structural diagram of a conventional flowmeter.

Fig. 2 is a schematic structural diagram of a first embodiment of the multiparameter flowmeter of the present invention.

Fig. 3 is a schematic diagram of a first embodiment of the multi-parameter flow meter of the present invention.

Fig. 4 is a schematic diagram of a second embodiment of the multi-parameter flow meter of the present invention.

Reference numerals

FIG. 1 shows a schematic view of a

11 differential pressure transmitter, 12 connecting pipes, 13 differential pressure leading interface, 14 pressure detecting device, 15 front end pressure interface, 16 pressure electric interface, 17 temperature transmitter, 18 temperature electric interface, 19 temperature sensing interface, 110 electric protection pipe and 120 power supply;

FIG. 2, FIG. 3 and FIG. 4

21 multi-parameter transmitter, 22 temperature transmitter, 23 control device, 24 power supply;

the pressure sampling device comprises a K1 first pressure sampling port, a K2 second pressure sampling port, a K3 temperature sensing interface, an A front end pressure acquisition chamber, a B first pressure acquisition chamber, a C second pressure acquisition chamber, a D pore plate, a G1 pipeline and a G2 connecting pipe.

Detailed Description

The utility model provides a multi-parameter flowmeter for the flow of the medium in the detection pipeline G1, the arrow in fig. 1-4 is the flow direction of medium, and its principle is the differential pressure of detection orifice plate D back and forth, and calculates according to the differential pressure and derives the flow, and the mode of calculation is conventional calculation, and no longer the repeated description here. The utility model provides a multi-parameter flowmeter includes connecting pipe G2, many parameter changer 21, controlling means 23 and power 24.

As shown in fig. 2, both ends of the connecting pipe G2 are connected with the pipe G1, a pore plate D is arranged in the connecting pipe G2, the pore plate D is of an existing structure, that is, a through hole is formed in the plate to allow a medium in the pipe G1 to pass through before and after the communication, a first pressure taking port K1 and a second pressure taking port K2 are arranged on the pipe wall of the connecting pipe G2, the first pressure taking port K1 is located on the upstream of the pore plate D in the flowing direction of the medium in the pipe G1, and the second pressure taking port K2 is located on the downstream of the pore plate D.

In the first embodiment, the multi-parameter transmitter 21 includes a front-end pressure acquisition section, a differential pressure acquisition section, and a conversion section that converts signals acquired by the front-end pressure acquisition section and the differential pressure acquisition section into electrical signals, respectively. The front end pressure acquisition part is provided with a front end pressure acquisition chamber A for acquiring a pressure signal of the first pressure taking port K1, the differential pressure acquisition part is provided with a first pressure acquisition chamber B for acquiring the pressure of the first pressure taking port K1 and a second pressure acquisition chamber C for acquiring the pressure of the second pressure taking port K2, and the first pressure acquisition chamber B is separated from the second pressure acquisition chamber C by a diaphragm. In the present embodiment, the multi-parameter transmitter 21 converts two signals, i.e., a front-end pressure signal and a front-end differential pressure signal, respectively, to obtain two standard electrical signals.

The power supply 24 is connected with the multi-parameter transmitter 21 and the control device 23 to supply power to the multi-parameter transmitter 21 and the control device 23, and in this embodiment, the power supply 24 is a commonly used battery.

In the first embodiment, the connection pipe G2 is further provided with a temperature sensing interface K3, the temperature sensing interface K3 is connected to a temperature transmitter 22, the temperature transmitter 22 is connected to the control device 23 to convert a collected temperature signal into an electrical signal and transmit the electrical signal to the control device 23, the temperature transmitter 22 is connected to the power supply 24 of the multi-parameter flow meter through a power cord, and an electrical protection tube is wrapped around the power cord.

The control device 23 receives the signals from the multi-parameter transmitter 21 and the temperature transmitter 22, processes and calculates the signals to obtain flow data, wherein the processing generally includes converting the electrical signals into digital signals, calculating to obtain flow data according to the data of the front-end and rear-end differential pressures, and correcting the flow data according to the front-end pressure and temperature. In this embodiment, the control device 23 is further provided with a display device for displaying front end pressure, front end differential pressure, temperature and flow rate data.

Through the utility model discloses a multi-parameter flow meter need not set up the pressure mouth of getting of front end pressure alone on connecting pipe G2, also need not set up the electric connection mouth that supplies power to front end pressure transmitter on the flowmeter yet, need not install front end pressure transmitter alone, consequently also need not reserve the space of installing front end pressure transmitter yet, not only makes the preparation technology of flowmeter more simplified, still makes the structure of flowmeter compacter, has reduced the space that the installation needs occupy.

In the second embodiment, the temperature transmitter 22 is not separately installed, and the temperature sensing interface K3 does not need to be provided on the connection pipe G2, as shown in fig. 4, the multi-parameter transmitter 21 further includes a temperature acquisition unit for acquiring the temperature of the first pressure taking port K1 or the second pressure taking port K2, and in this embodiment, the temperature acquisition unit acquires the temperature of the second pressure taking port K2. The conversion part converts the temperature signal collected by the temperature collection part into an electric signal and transmits the electric signal to the control device 23. Other features of the second embodiment are the same as the first embodiment.

The multiparameter flowmeter of the second embodiment does not need to separately provide an interface for collecting temperature on the connecting pipe G2, does not need to provide an electric connection port for supplying power to the temperature transmitter 22 on the flowmeter, and does not need to separately install the front temperature transmitter 22, so that the manufacturing process of the flowmeter is further simplified on the basis of the first embodiment, the structure of the flowmeter is further compact, and the space occupied by installation is further reduced.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalent arrangements of the disclosed embodiments will be apparent to those skilled in the art and may be made without departing from the spirit and scope of the present invention.

Claims

1. A multi-parameter flow meter, comprising:

2. The multiparameter flowmeter of claim 1, wherein the connecting pipe further comprises a temperature sensing interface, the temperature sensing interface is connected to a temperature transmitter, the temperature transmitter is connected to the control device to convert the collected temperature signal into an electrical signal and transmit the electrical signal to the control device, the temperature transmitter is connected to the power supply through a power line, and an electrical protection tube is wrapped around the power line.

3. The multi-parameter flow meter according to claim 1, wherein the multi-parameter transmitter further comprises a temperature acquisition unit for acquiring a temperature of the first pressure measurement port or the second pressure measurement port, and the conversion unit converts a temperature signal acquired by the temperature acquisition unit into an electrical signal and transmits the electrical signal to the control device.

4. A multiparameter flowmeter according to claim 2 or 3, wherein the control means is provided with display means for displaying front-end pressure, front-end differential pressure, temperature and flow data.