CN112903051B

CN112903051B - State monitoring method, computer equipment and storage medium

Info

Publication number: CN112903051B
Application number: CN201911222228.4A
Authority: CN
Inventors: 张强; 刘丁发; 王辉; 周芳; 任佳; 王强; 周刚; 闵伟; 陈辰
Original assignee: Petrochina Co Ltd
Current assignee: Petrochina Co Ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2024-04-30
Anticipated expiration: 2039-12-03
Also published as: CN112903051A

Abstract

The application discloses a state monitoring method, computer equipment and a storage medium, and belongs to the field of flow measurement. The method comprises the steps of mixing first dry natural gas and first liquid in a second channel to obtain wet natural gas; the testing device measures wet natural gas to obtain a measurement parameter, and periodically sends the measurement parameter to the computer equipment; the computer equipment receives the measurement parameters sent by the testing device, and obtains the change rate of the measurement parameters in the current period according to the received measurement parameters; and when the change rate is smaller than the preset change rate, determining that the wet natural gas is in a stable flowing state currently. According to the method provided by the application, the change rate of the measurement parameters in the current period of the wet natural gas is obtained through interaction between the computer equipment and the testing device, so that whether the wet natural gas is in a stable flowing state or not is monitored according to the change rate.

Description

State monitoring method, computer equipment and storage medium

Technical Field

The present application relates to the field of flow measurement, and in particular, to a state monitoring method, a computer device, and a storage medium.

Background

When the flow test is carried out on the wet natural gas, the test water is required to be filled into the natural gas to obtain the wet natural gas, the wet natural gas gradually transits from upstream to downstream after flowing and transition for a period of time, and the stable flowing state can be achieved, and the flow test can be carried out at the moment.

The current state monitoring method is that after the test water is filled into the natural gas, a tester judges whether the wet natural gas reaches a stable flowing state according to experience, and when the tester considers that the flowing state is stable, a flow test is carried out by adopting a testing device. But relies on the experience of the tester to monitor the flow state, has greater randomness and poor reliability.

Disclosure of Invention

The embodiment of the application provides a state monitoring method, computer equipment and a storage medium, which can solve the problems of larger randomness and poor reliability in the related technology. The technical scheme provided by the embodiment of the application is as follows:

According to a first aspect provided by an embodiment of the present application, a state monitoring method is provided and applied to a flow measurement system, where the flow measurement system includes a mixer, a testing device and a computer device;

The mixer includes: a first pipe and a second pipe;

the second pipeline is sleeved on the outer side of the first pipeline, the first end of the second pipeline is positioned between the first end of the first pipeline and the second end of the first pipeline, and the second end of the first pipeline is positioned between the first end of the second pipeline and the second end of the second pipeline;

The first end of the second pipeline is connected with the first pipeline, and the first end of the second pipeline is sealed;

A liquid channel is formed between the second pipeline and the first pipeline, and the liquid channel and the first channel inside the first pipeline are respectively communicated with the second channel inside the second pipeline;

The second pipe includes a first axial segment at a first end of the second pipe and a second axial segment at a second end of the second pipe, the first axial segment having a first inner diameter dimension greater than a second inner diameter dimension of the second axial segment;

the first axial section is provided with a liquid inlet which is communicated with the liquid channel;

the testing device is positioned in the second channel, and wireless communication connection is established between the testing device and the computer equipment;

The method comprises the following steps:

Inputting a first dry natural gas into the first channel, and inputting a first liquid into the liquid channel from the liquid inlet;

The first dry natural gas and the first liquid are mixed in the second channel to obtain wet natural gas;

the testing device is used for measuring the wet natural gas to obtain a measurement parameter, and periodically sending the obtained measurement parameter to the computer equipment, wherein the measurement parameter comprises at least one of differential pressure signals or density;

the computer equipment receives the measurement parameters sent by the testing device, and obtains the change rate of the measurement parameters in the current period according to the received measurement parameters; and when the change rate is smaller than a preset change rate, determining that the wet natural gas is in a stable flowing state currently.

In one possible implementation manner, a first fixing plate is arranged on the outer side of the first pipeline, and a second fixing plate is arranged on the outer side of the second pipeline;

the first fixing plate is connected with the second fixing plate and seals the first end of the second pipeline.

In another possible implementation, the second pipe further comprises a third axial segment;

A first end of the third axial segment is connected with the first axial segment, and a second end of the third axial segment is connected with the second axial segment;

the third axial section is conical, the inner diameter of the first end of the third axial section is equal to the first inner diameter, and the inner diameter of the second end of the third axial section is equal to the second inner diameter.

In another possible implementation, the first pipe includes a fourth axial segment and a fifth axial segment;

The fourth axial segment is located at the first end of the first conduit, the fifth axial segment is located at the second end of the first conduit, and the third inner diameter dimension of the fourth axial segment is greater than the fourth inner diameter dimension of the fifth axial segment.

In another possible implementation, the second inner diameter dimension is equal to the third inner diameter dimension.

In another possible implementation, the first pipe further comprises a sixth axial segment;

A first end of the sixth axial segment is connected with the fourth axial segment, and a second end of the sixth axial segment is connected with the fifth axial segment;

The sixth axial segment is tapered, the first end of the sixth axial segment has an inner diameter equal to the third inner diameter, and the second end of the sixth axial segment has an inner diameter equal to the fourth inner diameter.

In another possible implementation, the first end of the fifth axial segment is connected with the fourth axial segment;

The inner wall of the second end of the fifth axial section is conical;

The inner diameter dimension of the tapered first end is equal to the fourth inner diameter dimension and is smaller than the inner diameter dimension of the tapered second end.

In another possible implementation manner, a third fixing plate is arranged at the outer side of the fourth axial section, and a fourth fixing plate is arranged at the outer side of the fifth axial section;

the third fixing plate is connected with the fourth fixing plate, so that the fourth axial section is connected with the fifth axial section.

In another possible implementation, the measured parameter comprises a differential pressure signal; and when the change rate is smaller than a preset change rate, determining that the wet natural gas is currently in a stable flowing state, including:

and when the change rate of the differential pressure signal is smaller than a first preset change rate, determining that the wet natural gas is in a stable flowing state currently.

In another possible implementation, the first preset rate of change is 2%.

In another possible implementation, the measured parameter includes density; and when the change rate is smaller than a preset change rate, determining that the wet natural gas is currently in a stable flowing state, including:

And when the change rate of the density is smaller than a second preset change rate, determining that the wet natural gas is in a stable flowing state currently.

In another possible implementation, the second preset rate of change is 1%.

According to a second aspect provided by an embodiment of the present application, there is provided a computer device, including a processor and a memory, in which instructions are stored, the instructions being loaded and executed by the processor to implement operations performed by the computer device in the condition monitoring method.

According to a third aspect provided by an embodiment of the present application, there is provided a computer readable storage medium storing instructions that are loaded and executed by a processor to implement operations performed by a computer device in a condition monitoring method as described.

The technical scheme provided by the embodiment of the application has the beneficial effects that at least:

According to the method provided by the embodiment of the application, the testing device periodically measures the wet natural gas and sends the measured parameters to the computer equipment, the computer equipment receives the measured parameters sent by the testing device to obtain the measured parameters of the wet natural gas, then the change rate of the measured parameters in the current period is obtained according to the received measured parameters, and when the change rate is smaller than the preset change rate, the wet natural gas is determined to be in a stable flowing state currently. The computer equipment displays the received measurement parameters, and the tester can monitor the flowing state of the wet natural gas in real time. The change rate of each measured parameter is obtained through calculation of the computer equipment, whether the wet natural gas reaches a stable flow state can be accurately analyzed, the state monitoring by a tester through experience is not needed, and the reliability is improved. And whether the flow state of the test section reaches a stable state can be accurately analyzed in the process of switching the analysis flow points, so that the efficiency and the data reliability of the test process are improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a mixer according to an exemplary embodiment;

FIG. 2 is a schematic diagram of a first conduit according to an exemplary embodiment;

FIG. 3 is a schematic diagram of a second conduit according to an exemplary embodiment;

FIG. 4 is a schematic diagram of another mixer shown according to an exemplary embodiment;

FIG. 5 is a block diagram of a flow measurement system according to an exemplary embodiment;

FIG. 6 is a flowchart illustrating a method of condition monitoring according to an exemplary embodiment;

FIG. 7 is a flowchart illustrating a method of condition monitoring according to an exemplary embodiment;

FIG. 8 is a schematic diagram illustrating a differential pressure signal versus time according to an exemplary embodiment;

FIG. 9 is a graph of density versus time, according to an example embodiment;

Fig. 10 is a schematic structural view of a terminal according to an exemplary embodiment;

Fig. 11 is a schematic diagram showing a structure of a server according to an exemplary embodiment.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of a mixer according to an exemplary embodiment, as shown in fig. 1, the mixer including: a first pipe 101 and a second pipe 102.

Wherein the mixer is a device for mixing dry natural gas and liquid to generate wet natural gas. When the mixer generates wet natural gas, the dry natural gas and the liquid respectively enter the mixer through different pipelines, and the dry natural gas and the liquid are mixed in the mixer, so that the wet natural gas is generated to simulate the wet natural gas at the natural gas wellhead.

The second pipe 102 is sleeved outside the first pipe 101, a first end of the second pipe 102 is located between a first end of the first pipe 101 and a second end of the first pipe 101, and a second end of the first pipe 101 is located between a first end of the second pipe 102 and a second end of the second pipe 102.

Wherein the first end of the second pipe 102 is disposed outside the first pipe 101, and the second end of the first pipe 101 is located inside the second pipe 102.

The first end of the second pipe 102 is connected to the first pipe 101, sealing the first end of the second pipe 102. Wherein, the first pipeline 101 and the second pipeline 102 are connected into an integral structure, and the joint of the first pipeline 101 and the second pipeline 102 seals the first end of the second pipeline 102.

A liquid passage 103 is formed between the second pipe 102 and the first pipe 101, and the liquid passage 103 and a first passage 104 inside the first pipe 101 are respectively communicated with a second passage 105 inside the second pipe 102.

Wherein the liquid channel 103 is formed by the inner wall of the second pipe 102 and the outer wall of the first pipe 101. Since the first end of the first conduit 101 is located between the first end of the second conduit 102 and the second end of the second conduit 102, the liquid channel 103 communicates with the second channel 105 at the second end of the first conduit 101. And since the first end of the second pipe 102 is in a sealed state, the liquid passage 103 is a passage of a one-way outlet.

And since the first end of the first conduit 101 is located between the first end of the second conduit 102 and the second end of the second conduit 102, the first channel 104 communicates with the second channel 105 at the second end of the first conduit 101.

The second conduit 102 includes a first axial segment 1201 and a second axial segment 1202, the first axial segment 1201 being located at a first end of the second conduit 102 and the second axial segment 1202 being located at a second end of the second conduit 102, the first inner diameter dimension of the first axial segment 1201 being greater than the second inner diameter dimension of the second axial segment 1202. The first axial segment 1201 is provided with a liquid inlet 1203, the liquid inlet 1203 being in communication with the liquid channel 103.

Since the first inner diameter dimension is larger than the second inner diameter dimension, the region of the liquid channel 103 corresponding to the first axial section 1201 in the liquid channel 103 can serve as a buffer zone for the liquid, the region can change the flow direction of the liquid, and the liquid can form a pool in the region, so that when the liquid flows into the region of the liquid channel 103 corresponding to the second axial section 1202, the region of the liquid channel 103 corresponding to the second axial section 1202 can be filled, and the flow state of the liquid is stable when the liquid enters the second channel 105, and the flow rate of the liquid is stable.

Thus, the liquid channel 103 comprises a buffer chamber and a flow channel, between the first axial section 1201 and the first conduit 101, and between the second axial section 1202 and the first conduit 101. Wherein the radial width of the buffer chamber is greater than the radial width of the flow channel, the liquid inlet 1203 communicates with the buffer chamber, the buffer chamber communicates with the flow channel, and the flow channel communicates with the second channel 105.

Optionally, the radial width of the flow channel is 0.03-0.06 times of the first inner diameter dimension, so that the mixing proportion of the liquid and the dry natural gas is ensured, and the wet natural gas generated by the mixer is similar to the wet natural gas at the natural gas wellhead.

In addition, in order that the dry natural gas and the liquid are stable in the flowing state before mixing, the first pipe 101 and the second pipe 102 are circular, and the first pipe 101 and the second pipe 102 are coaxial, that is, the central axis of the first pipe 101 and the central axis of the second pipe 102 are overlapped, the liquid passage 103 is circular.

To ensure that the flow conditions of the liquid are stable before the dry natural gas and the liquid are mixed, the first axial section 1201 may optionally have an axial length of 100 mm to 140 mm and a second inner diameter dimension of 75 mm to 90 mm.

Alternatively, the first axial segment 1201 has an axial length of 130±5 millimeters, the second axial segment 1202 has an axial length of greater than 330 millimeters, and the second radial dimension is 78±2 millimeters.

In addition, the axial length dimension of the second axial segment 1202 ranges between 5 and 15 times the second inner diameter dimension.

For the process of generating wet natural gas by using the mixer, dry natural gas enters from the first end of the first pipeline 101, passes through the first channel 104 and enters the second channel 105; liquid enters from the liquid inlet 1203, is collected in the liquid channel 103 area corresponding to the first axial section 1201, and then enters into the liquid channel 103 area corresponding to the second axial section 1202, so as to enter into the second channel 105; the dry natural gas mixes with the liquid in the second passage 105 to form wet natural gas in a steady flow state.

In addition, the stable wet natural gas is in a ring-shaped flowing form, and the flowing characteristic of the wet natural gas is that the dry natural gas is dominant, and the dry natural gas promotes the liquid to flow. For example, when the flow state of the wet natural gas is stable, the dry natural gas is at the center of the second passage 105, and the liquid takes a ring-like flow form around the inner wall of the second passage 105.

The application provides a mixer, which comprises a first pipeline and a second pipeline, wherein the second pipeline is sleeved on the outer side of the first pipeline, the second end of the first pipeline is positioned between the first end of the second pipeline and the second end of the second pipeline, the first end of the second pipeline is connected with the first pipeline, the first end of the second pipeline is sealed, a liquid channel is formed between the second pipeline and the first pipeline, the liquid channel and the first channel in the first pipeline are respectively communicated with the second channel in the second pipeline, the second pipeline comprises a first axial section and a second axial section, the first axial section is positioned at the first end of the second pipeline, the second axial section is positioned at the second end of the second pipeline, the first inner diameter of the first axial section is larger than the second inner diameter of the second axial section, the first axial section is provided with a liquid inlet, and the liquid inlet is communicated with the liquid channel. Because the first internal diameter size is larger than the second internal diameter size, the liquid changes the flowing direction of the liquid in the liquid channel area corresponding to the first axial section, and the liquid can be converged in the liquid channel area, so that the liquid can be filled in the liquid channel area corresponding to the second axial section, the flowing state of the liquid is stable when entering the second channel, the flow rate of the liquid is stable, the influence of the instability of the flowing state of the liquid on the flowing state of the wet natural gas is avoided, and the stability of the flowing state of the mixed wet natural gas is improved.

And because the second end of the first pipeline is positioned between the first end and the second end of the second pipeline, the dry natural gas enters the second channel and can be diffused, so that the dry natural gas and the liquid are quickly mixed, and a stable annular flow form of the wet natural gas is formed.

In one possible implementation, as shown in fig. 2 and 3, the outside of the first pipe 101 is provided with a first fixing plate 1101, the outside of the second pipe 102 is provided with a second fixing plate 1204, and the first fixing plate 1101 is connected to the second fixing plate 1204 to seal the first end of the second pipe 102.

Wherein, the second fixing plate 1204 is disposed outside the first end of the second pipe 102, and when the first fixing plate 1101 is connected to the second fixing plate 1204, one surface of the first fixing plate 1101 is attached to one surface of the second fixing plate 1204, so as to seal the first end of the second pipe 102.

For example, a first mounting hole is provided in the first fixing plate 1101, a second mounting hole is provided in the second fixing plate 1204, and a bolt penetrates the first and second mounting holes to fixedly connect the first and second fixing plates 1101 and 1204, so that the first and second pipes 101 and 102 are connected. Or the first 1101 and the second 1204 fixing plates are respectively provided with screw threads, and the first 1101 and the second 1204 fixing plates are fixedly connected by screw-coupling.

Optionally, the mixer further comprises a sealing ring, wherein the first 1101 or the second 1204 fixing plate is provided with a sealing groove, the sealing ring is mounted in the sealing groove, the first 1101 and the second 1204 fixing plate are connected, the sealing ring is pressed, and a gap between the first 1101 and the second 1204 fixing plate is sealed, so that a first end of the second pipe 102 is sealed.

In addition, to facilitate connection of first conduit 101 and second conduit 102, second stationary plate 1204 is positioned outside of first axial segment 1201 and at a first end of second conduit 102, and liquid inlet 1203 is positioned adjacent to second stationary plate 1204 at a distance from second stationary plate 1204 that is less than a predetermined distance.

In one possible implementation, as shown in fig. 3, the second conduit 102 further comprises a third axial segment 1205, the first end of the third axial segment 1205 being connected to the first axial segment 1201 and the second end of the third axial segment 1205 being connected to the second axial segment 1202, such that the third axial segment 1205 is located between the first axial segment 1201 and the second axial segment 1202. The third axial segment 1205 is tapered, and the first end of the third axial segment 1205 has an inner diameter equal to the first inner diameter, and the second end of the third axial segment 1205 has an inner diameter equal to the second inner diameter.

Along the axis of the second conduit 102, the inner diameter of the third axial segment 1205 gradually decreases in size from the first end of the third axial segment 1205 toward the second end of the third axial segment 1205. By providing the third axial segment 1205, the stability of the flowing state of the liquid is facilitated when the liquid flows from the first axial segment 1201 to the second axial segment 1202, thereby improving the stability of the flowing state of the wet natural gas after mixing.

To ensure that the flow state of the liquid is stable before mixing, the cross-sectional shape of the third axial segment 1205 along the central axis is optionally trapezoidal with the waist of the trapezoid being at an angle of 30-50 degrees to the central axis.

Optionally, the third axial segment 1205 has a trapezoidal cross-sectional shape along the central axis, with the waist of the trapezoid being at an angle of 40±2 degrees to the central axis.

In one possible implementation, as shown in fig. 2, the first conduit 101 includes a fourth axial segment 1102 and a fifth axial segment 1103, the fourth axial segment 1102 being located at a first end of the first conduit 101, the fifth axial segment 1103 being located at a second end of the first conduit 101, the third inner diameter dimension of the fourth axial segment 1102 being greater than the fourth inner diameter dimension of the fifth axial segment 1103.

Because the third inner diameter dimension is greater than the fourth inner diameter dimension, the dry natural gas flows from the fourth axial section 1102 into the fifth axial section 1103, so that the flow state of the natural gas entering the fifth axial section 1103 is stable, and the dry natural gas with stable flow can be kept to enter the second channel 105, thereby improving the stability of the flow state of the wet natural gas.

In addition, the second pipe 102 is sleeved outside the fifth axial section 1103, and the second pipe 102 is connected to the fifth axial section 1103, sealing the first end of the second pipe 102.

Optionally, the second inner diameter dimension is equal to the third inner diameter dimension, i.e. the inner diameter dimension of the first end of the first conduit 101 is equal to the inner diameter dimension of the second end of the second conduit 102.

Since the wet natural gas is generated using the mixer, it is necessary to connect with other pipes at both ends of the mixer so as to be able to deliver the dry natural gas as well as the wet natural gas. The second inner diameter is equal to the third inner diameter, namely, when two ends of the mixer are connected with other pipelines, the pipelines with the same size can be connected, so that the use and the installation of the mixer are convenient.

To ensure that the flow of dry natural gas is stable prior to mixing, optionally the fourth axial segment 1102 has an axial length of 100 mm to 140 mm and a third inner diameter dimension of 75 mm to 90 mm; the fifth axial segment 1103 has an axial length of 350 mm-450 mm and a fourth inner diameter dimension of 65 mm-73 mm.

Optionally, the fourth axial segment 1102 has an axial length of 115±5 millimeters and the third inner diameter dimension of 78±2 millimeters; the fifth axial segment 1103 has an axial length of 390 + -10 millimeters and a fourth inner diameter dimension of 69 + -1 millimeters.

Optionally, as shown in fig. 2, the first pipe 101 further comprises a sixth axial segment 1104, a first end of the sixth axial segment 1104 being connected to the fourth axial segment 1102, and a second end of the sixth axial segment 1104 being connected to the fifth axial segment 1103. The fourth axial segment 1102 is tapered, the first end of the sixth axial segment 1104 has an inner diameter equal to the third inner diameter, and the second end of the sixth axial segment 1104 has an inner diameter equal to the fourth inner diameter.

The inner diameter of the sixth axial segment 1104 gradually decreases in size along the axis of the first pipe 101 from the first end of the sixth axial segment 1104 toward the first end of the sixth axial segment 1104. By providing the sixth axial segment 1104, when the dry natural gas flows from the fourth axial segment 1102 to the fifth axial segment 1103, the flow state of the dry natural gas can be gradually stabilized by the taper of the sixth axial segment 1104, so that the flow state of the dry natural gas entering the second channel 105 is stabilized, and the stability of the flow state of the wet natural gas after mixing is improved.

To ensure that the flow of dry natural gas is stable prior to mixing, the sixth axial segment 1104 may optionally have a trapezoidal cross-sectional shape along the central axis with the waist of the trapezoid at an angle of 12-16 degrees to the central axis.

Optionally, the sixth axial segment 1104 has a trapezoidal cross-sectional shape along the central axis with a waist of 13.5±0.5 degrees from the central axis.

Optionally, the first end of the fifth axial segment 1103 is connected to the fourth axial segment 1102, and the inner wall of the second end of the fifth axial segment 1103 is tapered, with the tapered first end having an inner diameter equal to the fourth inner diameter and smaller than the tapered second end.

The dry natural gas enters from the first end of the fifth axial segment 1103 and is transported at a steady flow rate, and at the second end of the fifth axial segment 1103, the dry natural gas diffuses in this area due to the tapered inner wall of the second end and the gradually increasing inner diameter, so that the dry natural gas subsequently enters into the second channel 105 and can be better mixed with the liquid, thereby obtaining a steady wet natural gas.

In order to keep the flow state stable when the dry natural gas enters the second channel 105 and enable the dry natural gas to be diffused and fully mixed with the liquid, optionally, the second end and the inner wall of the fifth axial section 1103 are tapered areas, the cross section along the central axis of the fifth axial section 1103 is trapezoidal, the angle between the waist of the trapezoid and the central axis is 8-12 degrees, and the inner diameter of the second end of the fifth axial section 1103 is 74-78 millimeters.

Optionally, the sixth axial segment 1104 has a trapezoidal cross-sectional shape along the central axis, the waist of the trapezoid being at an angle of 13.5±0.5 degrees to the central axis, and the second end of the fifth axial segment 1103 having an inner diameter dimension of 75±0.5 millimeters.

For the first pipe 101 including the fourth axial segment 1102, the fifth axial segment 1103 and the sixth axial segment 1104, optionally, the first fixing plate 1101 is located at a connection between the fourth axial segment 1102 and the sixth axial segment 1104 and is located outside the fourth axial segment 1102.

It should be noted that, in the embodiment of the present application, the first pipe 101 includes a fourth axial segment 1102, a fifth axial segment 1103 and a sixth axial segment 1104, where the fourth axial segment 1102, the fifth axial segment 1103 and the sixth axial segment 1104 may be an integral structure, and different axial segments have different sizes and shapes; or may be separately provided, each of the axial segments being provided as a separate structure, the plurality of axial segments being joined to form the second conduit 102.

The second pipe 102 includes a first axial segment 1201, a second axial segment 1202, and a third axial segment 1205, where the first axial segment 1201, the second axial segment 1202, and the third axial segment 1205 may be an integral structure, and the different axial segments may be different in size and shape; or may be separately provided, each of the axial segments being provided as a separate structure, the plurality of axial segments being connected into the second conduit 102.

Alternatively, as shown in fig. 4, a third fixing plate 1105 is provided on the outer side of the fourth axial section 1102, a fourth fixing plate 1106 is provided on the outer side of the fifth axial section 1103, and the third fixing plate 1105 is connected to the fourth fixing plate 1106 so that the fourth axial section 1102 is connected to the fifth axial section 1103.

For ease of processing and use, the second conduit 102 is provided as a combination of two separate structures, namely a fourth axial segment 1102 and a fifth axial segment 1103. The fourth axial segment 1102 and the fifth axial segment 1103 are joined to form the first conduit 101 by the connection of the third fixed plate 1105 and the fourth fixed plate 1106.

Optionally, the mixer further includes a sealing ring, a sealing groove is disposed on the fourth fixing plate 1106, the sealing ring is installed in the sealing groove, the third fixing plate 1105 is connected with the fourth fixing plate 1106, the sealing ring is extruded, and a gap between the third fixing plate 1105 and the fourth fixing plate 1106 is sealed, so that the fourth axial section 1102 is connected with the fifth axial section 1103, and a connection part between the fourth axial section 1102 and the fifth axial section 1103 is sealed.

The connection between the third fixing plate and the fourth fixing plate 1106 is similar to the connection between the first fixing plate 1101 and the fourth fixing plate 1106 described above, and will not be described again.

In addition, for the first pipe 101 including the fourth axial segment 1102, the fifth axial segment 1103 and the sixth axial segment 1104, the second pipe 102 includes the first axial segment 1201, the second axial segment 1202 and the third axial segment 1205, and the fifth axial segment 1103 and the sixth axial segment 1104 are in an integral structure, the fourth axial segment 1102, the fifth axial segment 1103 and the sixth axial segment 1104 are respectively in two independent structures, optionally, as shown in fig. 4, a third fixing plate 1105 is disposed on the outer side of the fourth axial segment 1102, a fourth fixing plate 1106 is disposed on the outer side of the fifth axial segment 1103, a first fixing plate 1101 is disposed on the outer side of the first axial segment 1201, and the second pipe 102 is sleeved on the outer sides of the fifth axial segment 1103 and the sixth axial segment 1104. The third fixing plate 1105 is connected to a fourth fixing plate 1106, and the fourth fixing plate 1106 is connected to the first fixing plate 1101 to seal the first end of the first pipe 101.

It should be noted that, in the embodiment of the present application, the first end and the second end refer to two opposite ends in the same structure, the first end of each structure is disposed on one side, the second end of each structure is disposed on the other side, as shown in fig. 1 in the drawings of the present application, one end on the left side of each pipe or each axial section is taken as the first end, and one end on the right side of each pipe or each axial section is taken as the second end.

Fig. 5 is a block diagram of a flow measurement system including a mixer 501, a testing apparatus 502, and a computer device 503, as shown in fig. 5, according to an example embodiment.

The structure of the mixer 501 is similar to that of the mixer in the previous embodiment, and the testing device 502 is a device for testing the flow rate of the wet natural gas, and may be a flow meter or other testing devices. The testing device is located in the second channel of the mixer 501. The computer device 503 may be a mobile phone, a computer, a tablet computer, or other devices of various types.

Both the computer device 503 and the testing apparatus 502 are configured with wireless communication modules, through which wireless communication connection is established, through which interaction is possible. The Wireless communication module may be any type of Wireless communication module such as a WiFi (Wireless-Fidelity) module, a bluetooth module, a mobile network communication module, etc.

The testing device 502 is used for measuring the wet natural gas, the obtained measurement parameters are sent to the computer equipment 503, and the computer equipment 503 is used for monitoring the state of the wet natural gas according to the measurement parameters sent by the testing device 502.

FIG. 6 is a flow chart illustrating a condition monitoring method, as shown in FIG. 6, for use in the implementation environment shown in FIG. 5, according to an exemplary embodiment, the method comprising:

601. The first dry natural gas is input into the first channel 104 and the first liquid is input into the liquid channel 103 from the liquid inlet 1203.

602. The first dry natural gas is mixed with the first liquid in the second passage 105 to obtain wet natural gas.

603. The testing device measures the wet natural gas to obtain a measurement parameter, and periodically transmits the obtained measurement parameter to the computer equipment, wherein the measurement parameter comprises at least one of differential pressure signals or density.

604. The computer equipment receives the measurement parameters sent by the testing device, and obtains the change rate of the measurement parameters in the current period according to the received measurement parameters; and when the change rate is smaller than the preset change rate, determining that the wet natural gas is in a stable flowing state currently.

According to the method provided by the embodiment of the application, wireless communication connection is established between the testing device and the computer equipment, the computer equipment receives the measurement parameters sent by the testing device to obtain the measurement parameters of the wet natural gas, then the change rate of the measurement parameters in the current period is obtained according to the received measurement parameters, and when the change rate is smaller than the preset change rate, the wet natural gas is determined to be in a stable flowing state currently. Through the interaction between the computer equipment and the testing device, the change rate of the measurement parameters in the current period of the wet natural gas is obtained, so that whether the wet natural gas is in a stable flowing state or not is monitored according to the change rate.

In one possible implementation, the measured parameter comprises a differential pressure signal; when the rate of change is less than a preset rate of change, determining that the wet natural gas is currently in a steady flow state, comprising:

And when the change rate of the differential pressure signal is smaller than the first preset change rate, determining that the wet natural gas is in a stable flowing state currently.

In another possible implementation, the first preset rate of change is 2%.

In another possible implementation, the measured parameter includes density; when the rate of change is less than a preset rate of change, determining that the wet natural gas is currently in a steady flow state, comprising:

and when the change rate of the density is smaller than the second preset change rate, determining that the wet natural gas is in a stable flowing state currently.

In another possible implementation, the second preset rate of change is 1%.

In another possible implementation, the test device includes a differential pressure detection assembly; the wet natural gas is measured to obtain measurement parameters, which comprise:

And measuring the wet natural gas through a differential pressure detection assembly to obtain a differential pressure signal of the wet natural gas.

In another possible implementation, the testing device comprises a differential pressure flow meter comprising a differential pressure sensing assembly.

In another possible implementation, the testing device includes a density detection component; the wet natural gas is measured to obtain measurement parameters, which comprise:

and measuring the wet natural gas through a density detection assembly to obtain the density of the wet natural gas.

FIG. 7 is a flowchart illustrating a method for monitoring a status, as shown in FIG. 7, according to an exemplary embodiment of the present invention, in which the interaction entity is a computer device and a testing apparatus, the method includes:

701. the testing device periodically measures the wet natural gas and sends measured parameters to the computer equipment.

The testing device is a device for testing the flow of the wet natural gas, can be a flowmeter or other testing devices, and has a wireless communication function. The computer equipment can be various types of equipment such as mobile phones, computers, tablet computers and the like, and has a wireless communication function and a data processing function.

The embodiment of the application is applied to a scene of state monitoring of wet natural gas, wherein the wet natural gas is natural gas formed by mixing liquid and dry natural gas.

Wet natural gas sprayed out of the natural gas wellhead is conveyed through a conveying pipeline, and liquid and natural gas are mixed in the conveying process, so that the state of the natural gas can be influenced. Therefore, when the flow test is carried out, the mode of manually manufacturing wet natural gas is adopted, the test water is injected into the dry natural gas through the mixing device to form the wet natural gas, and then the testing device is placed in the wet natural gas conveying pipeline at the downstream of the mixing device, so that the flow test can be carried out on the wet natural gas through the testing device. By adopting the mode of manually manufacturing the wet natural gas, the state of mixed liquid in the natural gas in the real environment can be simulated, so that accurate flow test can be performed.

Wherein the pressure of the wet natural gas is not lower than 2.0MPa (megapascal), and the volume fraction of the liquid in the wet natural gas is 0.1% -2%, and further, can be 0.5% -1.5%. When wet natural gas is formed, the dry natural gas can be from a high-pressure natural gas transmission station, and the pressure of the dry natural gas is not lower than 2.0MPa, or not lower than 3.0MPa, for example, the pressure of the dry natural gas is 2.2MPa or 3.5MPa.

The testing device can be used for measuring to obtain the measurement parameters of the wet natural gas, the measurement parameters are used for representing the current state of the wet natural gas and can be any type of parameters of the wet natural gas, and the current state of the wet natural gas can be known according to the measurement parameters. After the measurement, the test device may send the measured parameter to the computer device for status monitoring of the wet natural gas by the computer device based on the measured parameter.

The testing device can periodically measure, and each time the measured parameters are obtained, the measured parameters are sent to the computer equipment and stored by the computer equipment. The period adopted by the testing device can be 1 minute, 5 minutes or other periods, and can be specifically determined according to the measurement requirement.

For example, the measurement parameter may include at least one of differential pressure signal, density, or other measurement parameter.

In one possible implementation, the testing device includes a differential pressure detection component, and the wet natural gas is measured by the differential pressure detection component to obtain a differential pressure signal of the wet natural gas. The differential pressure signal is used for indicating the magnitude of pressure variation generated by wet natural gas at two sides of the differential pressure detection assembly, and the differential pressure detection assembly can detect the pressure variation and convert the pressure variation into an electric signal, namely the differential pressure signal.

FIG. 8 is a graph showing differential pressure signal versus time, according to an exemplary embodiment, and it can be seen from FIG. 8 that after a transient condition is experienced, the differential pressure signal of wet natural gas downstream of the test section tends to stabilize, and a steady flow condition can be achieved.

Alternatively, the testing device comprises a differential pressure flow meter, such as an orifice plate flow meter or a venturi flow meter, or the like. The differential pressure flowmeter comprises a differential pressure detection assembly, a differential pressure conversion assembly and a flow display instrument. The differential pressure detection component is used for measuring a differential pressure signal, and the differential pressure conversion component is used for converting the differential pressure signal into a corresponding flow, so that the flow display instrument is used for displaying the measured flow because the differential pressure signal of the wet natural gas and the flow are in positive correlation.

In another possible implementation, the testing device includes a density detection component by which the wet natural gas is measured to obtain the density of the wet natural gas. FIG. 9 is a graph showing a density versus time, according to an example embodiment. As can be seen from fig. 9, after the transition of the working conditions, the density of the wet natural gas downstream of the test section tends to be stable, and a stable flow state can be achieved.

Alternatively, the density detection assembly may comprise a non-contact density detector, which may comprise a gamma ray on-line densitometer or an ultrasonic density meter.

702. The computer equipment receives the measurement parameters and acquires the change rate of the measurement parameters in the current period.

And when the computer equipment receives the measurement parameters sent by the testing device each time, acquiring the measurement parameters sent by the testing device in the previous period, and acquiring the change rate of the measurement parameters in the current period according to the measurement parameters in the current period and the measurement parameters in the previous period, for example, calculating the difference value between the measurement parameters in the current period and the measurement parameters in the previous period, and calculating the quotient of the difference value and the period to obtain the change rate of the measurement parameters. The change rate can reflect the change condition of the measurement parameters of the wet natural gas in the current period.

In one possible implementation, when the test parameter includes a differential pressure signal, the computer device calculates a rate of change of the differential pressure signal that can reflect a change in the differential pressure signal of wet natural gas over a current period.

In another possible implementation, when the test parameter includes density, the computer device calculates a rate of change of density that is indicative of a change in density of wet natural gas over the current period.

In another possible implementation manner, the computer device may display the received measurement parameters, and may display the obtained change rate of the measurement parameters for a tester to check, so that the tester can know the current state of the wet natural gas according to the displayed measurement parameters or the change rate of the measurement parameters.

703. The computer equipment judges whether the change rate of the measured parameter is smaller than the preset change rate, if so, the wet natural gas is determined to be in a stable flowing state currently, and if not, the process is finished.

The wet natural gas is in a flowing state in the conveying process, but because the test water is injected into the wet natural gas, after the test water is injected into the natural gas, a period of flowing and transition is needed to reach a stable flowing state, namely, the wet natural gas is in an unstable flowing state at the upstream and the wet natural gas is in a stable flowing state at the downstream. In order to perform an accurate flow test, it is necessary to first determine whether the wet natural gas is in a steady flow state.

Therefore, the computer device presets a preset change rate, and if the change rate of the measured parameter is not smaller than the preset change rate, the measured parameter of the wet natural gas is changed more severely, and is still in an unstable flowing state currently. If the change rate of the measured parameter is smaller than the preset change rate, the measured parameter of the wet natural gas is smaller in change and is in a stable flowing state currently.

In one possible implementation, when the measured parameter includes a differential pressure signal, the computer device compares the rate of change of the differential pressure signal to a first preset rate of change, and when the rate of change of the differential pressure signal is less than the first preset rate of change, indicating that the differential pressure signal has no longer changed over time, determines that the wet natural gas is currently in a steady flow state.

The first preset change rate may be 2%, 1% or other values, which may be specifically determined according to the requirement of measurement accuracy.

In another possible implementation, when the measured parameter includes density, the computer device compares the rate of change of density to a second preset rate of change, and when the rate of change of density is less than the second preset rate of change, indicating that the density is no longer changing over time, then it is determined that the wet natural gas is currently in a steady flow state. The second preset change rate may be 1%, 2% or other values, which may be specifically determined according to the requirement of measurement accuracy.

In another possible implementation, when the measured parameters include differential pressure signal and density, the computer device compares the rate of change of the differential pressure signal to a first preset rate of change and compares the rate of change of the density to a second preset rate of change, and when the rate of change of the differential pressure signal is less than the first preset rate of change and the rate of change of the density is less than the second preset rate of change, determines that the wet natural gas is currently in a steady flow state. The change rate of each measured parameter is obtained through the computer equipment, so that whether the wet natural gas reaches a stable flowing state can be accurately analyzed.

For example, when the rate of change of the differential pressure signal is less than 2% and the rate of change of the density is less than 1%, it is determined that the wet natural gas is currently in a steady flow state.

Fig. 10 shows a block diagram of a terminal according to an exemplary embodiment of the present application, and the terminal 1000 is configured to perform the steps performed by the computer device in the above-described embodiment. The terminal 1000 can be a portable mobile terminal such as: smart phones, tablet computers, MP3 players (Moving Picture Experts Group Audio Layer III, motion picture expert compression standard audio plane 3), MP4 (Moving Picture Experts Group Audio Layer IV, motion picture expert compression standard audio plane 4) players, notebook computers, desktop computers, head-mounted devices, or any other intelligent terminal. Terminal 1000 can also be referred to by other names of user equipment, portable terminal, laptop terminal, desktop terminal, etc.

In general, terminal 1000 can include: a processor 1001 and a memory 1002.

The processor 1001 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and so on. The processor 1001 may be implemented in at least one hardware form of DSP (DIGITAL SIGNAL Processing), FPGA (Field-Programmable gate array), PLA (Programmable Logic Array ). The processor 1001 may also include a main processor and a coprocessor, the main processor being a processor for processing data in an awake state, also referred to as a CPU (Central Processing Unit ); a coprocessor is a low-power processor for processing data in a standby state. In some embodiments, the processor 1001 may integrate a GPU (Graphics Processing Unit, image processor) for rendering and drawing of content required to be displayed by the display screen. In some embodiments, the processor 1001 may also include an AI (ARTIFICIAL INTELLIGENCE ) processor for processing computing operations related to machine learning.

Memory 1002 may include one or more computer-readable storage media, which may be non-transitory. Memory 1002 may also include high-speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in memory 1002 is used to store at least one instruction for being possessed by processor 1001 to implement the condition monitoring method provided by the method embodiments of the present application.

In some embodiments, terminal 1000 can optionally further include: a peripheral interface 1003, and at least one peripheral. The processor 1001, the memory 1002, and the peripheral interface 1003 may be connected by a bus or signal line. The various peripheral devices may be connected to the peripheral device interface 1003 via a bus, signal wire, or circuit board. Specifically, the peripheral device includes: at least one of radio frequency circuitry 1004, a display 1005, a camera assembly 1006, audio circuitry 1007, a positioning assembly 1008, and a power supply 1009.

Peripheral interface 1003 may be used to connect I/O (Input/Output) related at least one peripheral to processor 1001 and memory 1002. In some embodiments, processor 1001, memory 1002, and peripheral interface 1003 are integrated on the same chip or circuit board; in some other embodiments, either or both of the processor 1001, memory 1002, and peripheral interface 1003 may be implemented on a separate chip or circuit board, which is not limited in this embodiment.

Radio Frequency circuit 1004 is used to receive and transmit RF (Radio Frequency) signals, also known as electromagnetic signals. Radio frequency circuitry 1004 communicates with a communication network and other communication devices via electromagnetic signals. The radio frequency circuit 1004 converts an electrical signal into an electromagnetic signal for transmission, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 1004 includes: antenna systems, RF transceivers, one or more amplifiers, tuners, oscillators, digital signal processors, codec chipsets, subscriber identity module cards, and so forth. Radio frequency circuitry 1004 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocol includes, but is not limited to: metropolitan area networks, various generations of mobile communication networks (2G, 3G, 4G, and 10G), wireless local area networks, and/or WiFi (WIRELESS FIDELITY ) networks. In some embodiments, the radio frequency circuit 1004 may further include NFC (NEAR FIELD Communication) related circuits, which is not limited by the present application.

The display screen 1005 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. When the display 1005 is a touch screen, the display 1005 also has the ability to capture touch signals at or above the surface of the display 1005. The touch signal may be input to the processor 1001 as a control signal for processing. At this time, the display 1005 may also be used to provide virtual buttons and/or virtual keyboards, also referred to as soft buttons and/or soft keyboards. In some embodiments, display 1005 may be one, providing a front panel of terminal 1000; in other embodiments, display 1005 may be provided in at least two, separately provided on different surfaces of terminal 1000 or in a folded configuration; in still other embodiments, display 1005 may be a flexible display disposed on a curved surface or a folded surface of terminal 1000. Even more, the display 1005 may be arranged in a non-rectangular irregular pattern, i.e., a shaped screen. The display 1005 may be made of LCD (Liquid CRYSTAL DISPLAY), OLED (Organic Light-Emitting Diode) or other materials.

The camera assembly 1006 is used to capture images or video. Optionally, camera assembly 1006 includes a front camera and a rear camera. Typically, the front camera is disposed on the front panel of the terminal and the rear camera is disposed on the rear surface of the terminal. In some embodiments, the at least two rear cameras are any one of a main camera, a depth camera, a wide-angle camera and a tele camera, so as to realize that the main camera and the depth camera are fused to realize a background blurring function, and the main camera and the wide-angle camera are fused to realize a panoramic shooting and Virtual Reality (VR) shooting function or other fusion shooting functions. In some embodiments, camera assembly 1006 may also include a flash. The flash lamp can be a single-color temperature flash lamp or a double-color temperature flash lamp. The dual-color temperature flash lamp refers to a combination of a warm light flash lamp and a cold light flash lamp, and can be used for light compensation under different color temperatures.

The audio circuit 1007 may include a microphone and a speaker. The microphone is used for collecting sound waves of users and environments, converting the sound waves into electric signals, and inputting the electric signals to the processor 1001 for processing, or inputting the electric signals to the radio frequency circuit 1004 for voice communication. For purposes of stereo acquisition or noise reduction, the microphone may be multiple, each located at a different portion of terminal 1000. The microphone may also be an array microphone or an omni-directional pickup microphone. The speaker is used to convert electrical signals from the processor 1001 or the radio frequency circuit 1004 into sound waves. The speaker may be a conventional thin film speaker or a piezoelectric ceramic speaker. When the speaker is a piezoelectric ceramic speaker, not only the electric signal can be converted into a sound wave audible to humans, but also the electric signal can be converted into a sound wave inaudible to humans for ranging and other purposes. In some embodiments, audio circuit 1007 may also include a headphone jack.

The location component 1008 is used to locate the current geographic location of terminal 1000 to enable navigation or LBS (Location Based Service, location-based services). The positioning component 1008 may be a positioning component based on the United states GPS (Global Positioning System ), the Beidou system of China, the Granati system of Russia, or the Galileo system of the European Union.

Power supply 1009 is used to power the various components in terminal 1000. The power source 1009 may be alternating current, direct current, disposable battery or rechargeable battery. When the power source 1009 includes a rechargeable battery, the rechargeable battery may support wired or wireless charging. The rechargeable battery may also be used to support fast charge technology.

In some embodiments, terminal 1000 can further include one or more sensors 1010. The one or more sensors 1010 include, but are not limited to: acceleration sensor 1011, gyroscope sensor 1012, pressure sensor 1013, fingerprint sensor 1014, optical sensor 1015, and proximity sensor 1016.

The acceleration sensor 1011 can detect the magnitudes of accelerations on three coordinate axes of the coordinate system established with the terminal 1000. For example, the acceleration sensor 1011 may be used to detect components of gravitational acceleration in three coordinate axes. The processor 1001 may control the display screen 1005 to display a user interface in a landscape view or a portrait view according to the gravitational acceleration signal acquired by the acceleration sensor 1011. The acceleration sensor 1011 may also be used for the acquisition of motion data of a game or a user.

The gyro sensor 1012 may detect the body direction and the rotation angle of the terminal 1000, and the gyro sensor 1012 may collect the 3D motion of the user to the terminal 1000 in cooperation with the acceleration sensor 1011. The processor 1001 may implement the following functions according to the data collected by the gyro sensor 1012: motion sensing (e.g., changing UI according to a tilting operation by a user), image stabilization at shooting, game control, and inertial navigation.

Pressure sensor 1013 may be disposed on a side frame of terminal 1000 and/or on an underlying layer of display 1005. When the pressure sensor 1013 is provided at a side frame of the terminal 1000, a grip signal of the terminal 1000 by a user can be detected, and the processor 1001 performs right-and-left hand recognition or quick operation according to the grip signal collected by the pressure sensor 1013. When the pressure sensor 1013 is provided at the lower layer of the display screen 1005, the processor 1001 controls the operability control on the UI interface according to the pressure operation of the user on the display screen 1005. The operability controls include at least one of a button control, a scroll bar control, an icon control, and a menu control.

The fingerprint sensor 1014 is used to collect a fingerprint of the user, and the processor 1001 identifies the identity of the user based on the fingerprint collected by the fingerprint sensor 1014, or the fingerprint sensor 1014 identifies the identity of the user based on the collected fingerprint. Upon recognizing that the user's identity is a trusted identity, the user is authorized by the processor 1001 to have associated sensitive operations including unlocking the screen, viewing encrypted information, downloading software, paying for and changing settings, etc. Fingerprint sensor 1014 may be provided on the front, back or side of terminal 1000. When a physical key or vendor Logo is provided on terminal 1000, fingerprint sensor 1014 may be integrated with the physical key or vendor Logo.

The optical sensor 1015 is used to collect ambient light intensity. In one embodiment, the processor 1001 may control the display brightness of the display screen 1005 based on the ambient light intensity collected by the optical sensor 1015. Specifically, when the intensity of the ambient light is high, the display brightness of the display screen 1005 is turned up; when the ambient light intensity is low, the display brightness of the display screen 1005 is turned down. In another embodiment, the processor 1001 may dynamically adjust the shooting parameters of the camera module 1006 according to the ambient light intensity collected by the optical sensor 1015.

Proximity sensor 1016, also referred to as a distance sensor, is typically located on the front panel of terminal 1000. Proximity sensor 1016 is used to collect the distance between the user and the front of terminal 1000. In one embodiment, when proximity sensor 1016 detects a gradual decrease in the distance between the user and the front face of terminal 1000, processor 1001 controls display 1005 to switch from the bright screen state to the off screen state; when proximity sensor 1016 detects a gradual increase in the distance between the user and the front of terminal 1000, processor 1001 controls display 1005 to switch from the off-screen state to the on-screen state.

Those skilled in the art will appreciate that the structure shown in fig. 10 is not limiting and that terminal 1000 can include more or fewer components than shown, or certain components can be combined, or a different arrangement of components can be employed.

Fig. 11 is a schematic structural diagram of a server according to an embodiment of the present application, where the server 1100 may have a relatively large difference due to different configurations or performances, and may include one or more processors (Central Processing Units, CPUs) 1101 and one or more memories 1102, where at least one instruction is stored in the memories 1102, and the at least one instruction is loaded and executed by the processors 1101 to implement the methods provided in the foregoing method embodiments. Of course, the server may also have a wired or wireless network interface, a keyboard, an input/output interface, and other components for implementing the functions of the device, which are not described herein.

The server 1100 may be used to perform the steps performed by the computer device in the condition monitoring method described above.

The embodiment of the application also provides a computer device, which comprises a processor and a memory, wherein the memory stores instructions, and the instructions are loaded and executed by the processor to realize the following operations:

receiving measurement parameters sent by the testing device, and acquiring the change rate of the measurement parameters in the current period according to the received measurement parameters; and when the change rate is smaller than a preset change rate, determining that the wet natural gas is in a stable flowing state currently.

In one possible implementation, instructions are loaded and executed by a processor to implement the operations of:

In one possible implementation, the first preset rate of change is 2%.

In one possible implementation, the second preset rate of change is 1%.

The embodiment of the application also provides a computer readable storage medium, wherein the storage medium stores instructions, and the instructions are loaded and executed by a processor to realize the operations performed in the state monitoring method of the above embodiment.

The foregoing description is only for the convenience of those skilled in the art to understand the technical solution of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A condition monitoring method, characterized by being applied to a flow measurement system, the flow measurement system comprising a mixer, a testing device and a computer device;

the mixer includes: a first pipe (101) and a second pipe (102);

The second pipeline (102) is sleeved outside the first pipeline (101), a first end of the second pipeline (102) is located between the first end of the first pipeline (101) and a second end of the first pipeline (101), and a second end of the first pipeline (101) is located between the first end of the second pipeline (102) and the second end of the second pipeline (102);

A first fixing plate (1101) is arranged on the outer side of the first pipeline (101), and a second fixing plate (1204) is arranged on the outer side of the second pipeline (102);

-said first fixing plate (1101) is connected to said second fixing plate (1204), sealing a first end of said second duct (102);

A liquid channel (103) is formed between the second pipeline (102) and the first pipeline (101), and the liquid channel (103) and a first channel (104) in the first pipeline (101) are respectively communicated with a second channel (105) in the second pipeline (102);

The second pipe (102) comprises a first axial section (1201), a second axial section (1202) and a third axial section (1205), the first axial section (1201) being located at a first end of the second pipe (102), the second axial section (1202) being located at a second end of the second pipe (102), a first inner diameter dimension of the first axial section (1201) being greater than a second inner diameter dimension of the second axial section (1202);

-the first axial segment (1201) is provided with a liquid inlet (1203), the liquid inlet (1203) being in communication with the liquid channel (103);

-a first end of the third axial segment (1205) is connected to the first axial segment (1201), and a second end of the third axial segment (1205) is connected to the second axial segment (1202);

The third axial segment (1205) is tapered, the first end of the third axial segment (1205) having an inner diameter equal to the first inner diameter, the second end of the third axial segment (1205) having an inner diameter equal to the second inner diameter;

The first conduit (101) comprises a fourth axial segment (1102), a fifth axial segment (1103) and a sixth axial segment (1104);

The fourth axial segment (1102) is located at a first end of the first conduit (101), the fifth axial segment (1103) is located at a second end of the first conduit (101), and a third inner diameter dimension of the fourth axial segment (1102) is greater than a fourth inner diameter dimension of the fifth axial segment (1103);

a third fixing plate (1105) is arranged on the outer side of the fourth axial section (1102), and a fourth fixing plate (1106) is arranged on the outer side of the fifth axial section (1103);

The third fixing plate (1105) is connected with the fourth fixing plate (1106) so that the fourth axial section (1102) is connected with the fifth axial section (1103);

the inner wall of the second end of the fifth axial segment (1103) is tapered;

the inner diameter of the conical first end is equal to the fourth inner diameter and smaller than the inner diameter of the conical second end;

-a first end of the sixth axial segment (1104) is connected to the fourth axial segment (1102), a second end of the sixth axial segment (1104) is connected to the fifth axial segment (1103);

The sixth axial segment (1104) is tapered, the first end of the sixth axial segment (1104) having an inner diameter equal to the third inner diameter, the second end of the sixth axial segment (1104) having an inner diameter equal to the fourth inner diameter;

The method comprises the following steps:

inputting a first dry natural gas into the first channel (104), inputting a first liquid from the liquid inlet (1203) into the liquid channel (103);

mixing the first dry natural gas with the first liquid in the second channel (105) to obtain wet natural gas;

2. The method of claim 1, wherein the second inner diameter dimension is equal to the third inner diameter dimension.

3. The method of claim 1, wherein the measured parameter comprises a differential pressure signal; and when the change rate is smaller than a preset change rate, determining that the wet natural gas is currently in a stable flowing state, including:

4. A method according to claim 3, wherein the first predetermined rate of change is 2%.

5. The method of claim 1, wherein the measured parameter comprises density; and when the change rate is smaller than a preset change rate, determining that the wet natural gas is currently in a stable flowing state, including:

6. The method of claim 5, wherein the second predetermined rate of change is 1%.

7. A computer device comprising a processor and a memory having instructions stored therein, the instructions being loaded and executed by the processor to implement the operations performed in the condition monitoring method of any one of claims 1 to 6.

8. A computer readable storage medium storing instructions for loading and execution by a processor to implement operations performed in a condition monitoring method according to any one of claims 1 to 6.