CN112903051A

CN112903051A - State monitoring method, computer device and storage medium

Info

Publication number: CN112903051A
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: 2021-06-04
Anticipated expiration: 2039-12-03

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 mixing first dry natural gas with first liquid in a second channel to obtain wet natural gas; the testing device measures the 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 flow state currently. According to the method, 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, the method is simple and accurate, the condition monitoring is not required to be carried out by testing personnel through experience, and the reliability is improved.

Description

State monitoring method, computer device and storage medium

Technical Field

The present disclosure relates to the field of flow measurement, and more particularly, to a method for monitoring a state, a computer device, and a storage medium.

Background

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

The current common state monitoring method is that after test water is filled into natural gas, testers judge whether wet natural gas reaches a stable flowing state or not by experience, and when the testers consider that the flowing state is stable, the testers adopt a testing device to perform flow testing. However, the flow state monitoring method based on the experience of the tester has high randomness and poor reliability.

Disclosure of Invention

The embodiment of the application provides a state monitoring method, computer equipment and a storage medium, and can solve the problems of high 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, there is provided a condition monitoring method 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 conduit and a second conduit;

the second pipeline is sleeved outside 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 sealed;

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

the second conduit includes a first axial segment at a first end of the second conduit and a second axial segment at a second end of the second conduit, the first inner diameter dimension of the first axial segment being greater than the 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 the testing device establishes wireless communication connection with the computer equipment;

the method comprises the following steps:

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

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

the testing device measures the wet natural gas to obtain a measurement parameter, and periodically sends the obtained measurement parameter to the computer equipment, wherein the measurement parameter comprises at least one of a differential pressure signal 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 flow 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 to seal the first end of the second pipeline.

In another possible implementation, the second conduit 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 conduit includes a fourth axial segment and a fifth axial segment;

the fourth axial segment is located at the first end of the first pipe, the fifth axial segment is located at the second end of the first pipe, and the third inner diameter of the fourth axial segment is greater than the fourth inner diameter 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 conduit further includes 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 inner diameter dimension of the first end of the sixth axial segment is equal to the third inner diameter dimension, and the inner diameter dimension of the second end of the sixth axial segment is equal to the fourth inner diameter dimension.

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 less than the inner diameter dimension of the tapered second end.

In another possible implementation manner, a third fixing plate is arranged on the outer side of the fourth axial section, and a fourth fixing plate is arranged on 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 includes a differential pressure signal; when the change rate is smaller than a preset change rate, determining that the wet natural gas is currently in a stable flow state includes:

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 flow state currently.

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

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

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 flow state currently.

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

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

According to a third aspect provided by embodiments 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 the status monitoring method.

The beneficial effects brought by the technical scheme provided by the embodiment of the application at least comprise:

according to the method provided by the embodiment of the application, the testing device periodically measures the wet natural gas and sends the measurement parameters to 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 at present. And the computer equipment displays the received measurement parameters, and a tester can monitor the flow state of the wet natural gas in real time. The change rate of each measurement parameter is obtained through calculation of computer equipment, whether the wet natural gas reaches a stable flow state or not can be accurately analyzed, a tester does not need to monitor the state through experience, and reliability is improved. Whether the flow state of the test section reaches a stable state or not can be accurately analyzed subsequently when the flow point is analyzed to be switched, and the efficiency of the test process and the data reliability are improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram illustrating the construction of a mixer in accordance with an exemplary embodiment;

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

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

FIG. 4 is a schematic diagram illustrating another mixer configuration according to an exemplary embodiment;

FIG. 5 is a block diagram illustrating a flow measurement system in accordance with an exemplary embodiment;

FIG. 6 is a flow diagram illustrating a condition monitoring method according to an exemplary embodiment;

FIG. 7 is a flow diagram illustrating a condition monitoring method in accordance with an exemplary embodiment;

FIG. 8 is a schematic diagram illustrating a differential pressure signal versus time in accordance with an exemplary embodiment;

FIG. 9 is a schematic diagram illustrating a density versus time according to an exemplary embodiment;

fig. 10 is a schematic diagram illustrating the structure of a terminal according to an exemplary embodiment;

fig. 11 is a schematic diagram illustrating a configuration of a server according to an example embodiment.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

Fig. 1 is a schematic diagram illustrating a structure 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 blender generates wet natural gas, dry natural gas and liquid enter the inside of blender through the different pipelines that set up respectively, will do natural gas and liquid and mix in the inside of blender to generate wet natural gas, simulate the wet natural gas of natural gas well head.

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

Wherein a first end of the second duct 102 is disposed outside the first duct 101 and a second end of the first duct 101 is located inside the second duct 102.

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

The second pipe 102 and the first pipe 101 form a liquid passage 103 therebetween, and the liquid passage 103 and a first passage 104 inside the first pipe 101 communicate with a second passage 105 inside the second pipe 102, respectively.

The liquid passage 103 is formed by an inner wall of the second pipe 102 and an outer wall of the first pipe 101. Since the first end of the first pipe 101 is located between the first end of the second pipe 102 and the second end of the second pipe 102, the liquid passage 103 communicates with the second passage 105 at the second end of the first pipe 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 pipe 101 is located between the first end of the second pipe 102 and the second end of the second pipe 102, the first passage 104 communicates with the second passage 105 at the second end of the first pipe 101.

The second conduit 102 comprises 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 section 1201 is provided with a liquid inlet 1203, the liquid inlet 1203 communicating with the liquid channel 103.

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

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

Optionally, the radial width of the flow-through channel is 0.03-0.06 times the first inner diameter dimension, ensuring a mixing ratio of liquid to dry natural gas, such that wet natural gas produced by the mixer is similar to wet natural gas at the natural gas wellhead.

In addition, in order that the flow conditions of the dry natural gas and the liquid are stable before the dry natural gas and the liquid are mixed, the first pipe 101 and the second pipe 102 are both circular, and the liquid passage 103 is formed in a circular shape by coaxially arranging the first pipe 101 and the second pipe 102, that is, by making the central axis of the first pipe 101 coincide with the central axis of the second pipe 102.

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

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

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

For the wet natural gas generation process using the mixer, dry natural gas enters from the first end of the first pipeline 101, passes through the first passage 104, and enters the second passage 105; liquid enters from the liquid inlet 1203, is collected in the area of the liquid channel 103 corresponding to the first axial segment 1201, and then enters the area of the liquid channel 103 corresponding to the second axial segment 1202, so that the liquid enters the second channel 105; the dry natural gas is mixed 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 circular flow form, the flow characteristics of the wet natural gas are that dry natural gas dominates, and the dry natural gas pushes liquid to flow. For example, when the flow state of the wet natural gas is stable, the dry natural gas flows in the center of the second passage 105, and the liquid flows in a circular shape around the inner wall of the second passage 105.

The utility model provides a mixer, this mixer includes first pipeline and second pipeline, the outside of first pipeline is located to the second pipeline cover, the second end of first pipeline is located between the first end of second pipeline and the second end of second pipeline, the first end and the first pipe connection of second pipeline, the first end of sealed second pipeline, constitute liquid passage between second pipeline and the first pipeline, liquid passage and the inside first passageway of first pipeline communicate with the inside second passageway of second pipeline respectively, the second pipeline includes first axial section and second axial section, first axial section is located the first end of second pipeline, second axial section is located the second end of second pipeline, the first internal diameter size of first axial section is greater than the second internal diameter size of second axial section, first axial section is provided with liquid inlet, liquid inlet and liquid passage intercommunication. Because first internal diameter size is greater than second internal diameter size, liquid changes the flow direction of liquid in the liquid passage region that first axial section corresponds, liquid can form in this liquid passage region and converge to make liquid can be full of the liquid passage region that second axial section corresponds, thereby make when getting into the second passageway, the flow state of liquid is stable, and the flow of liquid is stable, thereby the influence of the unstability of the flow state of liquid to the flow state of wet natural gas has been avoided, thereby the stability of the flow state of wet natural gas after having improved the mixture.

And because the second end of first pipeline is located between the first end and the second end of second pipeline, make dry natural gas enter into the second passageway and can diffuse to make dry natural gas and liquid flash mixed, form stable wet natural gas annular flow form.

In one possible implementation, as shown in fig. 2 and 3, a first fixing plate 1101 is disposed on an outer side of the first pipe 101, a second fixing plate 1204 is disposed on an outer side of the second pipe 102, and the first fixing plate 1101 is connected to the second fixing plate 1204 to seal a first end of the second pipe 102.

The second fixing plate 1204 is disposed at an outer side of 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 formed in the first fixing plate 1101, a second mounting hole is formed in the second fixing plate 1204, and a bolt is inserted through the first mounting hole and the second mounting hole to fixedly connect the first fixing plate 1101 and the second fixing plate 1204, thereby connecting the first pipe 101 and the second pipe 102. Alternatively, the first fixing plate 1101 and the second fixing plate 1204 are respectively provided with threads, and the first fixing plate 1101 and the second fixing plate 1204 are fixedly connected by screw-fitting.

Optionally, the mixer further includes a sealing ring, the first fixing plate 1101 or the second fixing plate 1204 is provided with a sealing groove, the sealing ring is installed in the sealing groove, the first fixing plate 1101 is connected with the second fixing plate 1204, and the sealing ring is compressed to seal a gap between the first fixing plate 1101 and the second fixing plate 1204, thereby sealing the first end of the second pipe 102.

In addition, in order to facilitate the connection of the first pipe 101 and the second pipe 102, a second fixing plate 1204 is located outside the first axial section 1201 and at a first end of the second pipe 102, and the liquid inlet 1203 is close to the second fixing plate 1204 and is located at a distance smaller than a preset distance from the second fixing plate 1204.

In one possible implementation, as shown in fig. 3, the second conduit 102 further includes a third axial segment 1205, a first end of the third axial segment 1205 being connected to the first axial segment 1201, a 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, with a first end of the third axial segment 1205 having an inner diameter dimension equal to the first inner diameter dimension, and a second end of the third axial segment 1205 having an inner diameter dimension equal to the second inner diameter dimension.

The third axial segment 1205 tapers in inner diameter size along the axis of the second conduit 102 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 liquid flowing from the first axial segment 1201 to the second axial segment 1202 is stabilized, thereby improving the stability of the flowing state of the mixed wet natural gas.

To ensure that the flow conditions of the liquid are stable prior to mixing, the third axial segment 1205 is optionally trapezoidal in cross-sectional shape along the central axis, with the trapezoid's waist 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 trapezoid's waist at an angle of 40 ± 2 degrees to the central axis.

In one possible implementation, as shown in fig. 2, the first pipe 101 includes a fourth axial segment 1102 and a fifth axial segment 1103, the fourth axial segment 1102 is located at the first end of the first pipe 101, the fifth axial segment 1103 is located at the second end of the first pipe 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.

Since the third inner diameter is larger than the fourth inner diameter, the dry natural gas flows into the fifth axial section 1103 from the fourth axial section 1102, so that the flow state of the natural gas entering the fifth axial section 1103 is stabilized, and the dry natural gas with a stable flow rate can 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 with the fifth axial section 1103 to seal the first end of the second pipe 102.

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

When wet natural gas is generated by using the mixer, other pipelines need to be connected to two ends of the mixer so as to be capable of conveying dry natural gas and wet natural gas. The second inner diameter is equal to the third inner diameter, namely when the two ends of the mixer are connected with other pipelines, the pipeline with the same size can be connected, and the mixer is convenient to use and install.

To ensure that the flow conditions of the dry natural gas are 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 to 450 mm and a fourth inner diameter dimension of 65 mm to 73 mm.

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

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 is connected with the fourth axial segment 1102, and a second end of the sixth axial segment 1104 is connected with the fifth axial segment 1103. The fourth axial segment 1102 is tapered, and the first end of the sixth axial segment 1104 has an inner diameter dimension equal to the third inner diameter dimension and the second end of the sixth axial segment 1104 has an inner diameter dimension equal to the fourth inner diameter dimension.

The sixth axial segment 1104 has a decreasing inner diameter along the axis of the first conduit 101 from the first end of the sixth axial segment 1104 to the first end of the sixth axial segment 1104. Through the sixth axial section 1104, when the dry natural gas flows from the fourth axial section 1102 to the fifth axial section 1103, the flowing state of the dry natural gas can be gradually stabilized through the taper of the sixth axial section 1104, so that the flowing state of the dry natural gas entering the second channel 105 is stabilized, and the stability of the flowing state of the mixed wet natural gas 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 trapezoid having a waist 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 the trapezoid having a waist at an angle of 13.5 ± 0.5 degrees to 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, the inner diameter of the tapered first end being equal to the inner diameter of the fourth end and smaller than the inner diameter of the tapered second end.

The dry natural gas enters from the first end of the fifth axial section 1103 and is transmitted at a stable flow rate, and at the second end of the fifth axial section 1103, because the inner wall of the second end is conical and the inner diameter size is gradually increased, the dry natural gas is diffused in the area so as to be better mixed with liquid in the second channel 105 in the subsequent process, and therefore stable wet natural gas is obtained.

In order to keep the dry natural gas in a stable flowing state 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-sectional shape along the central axis of the fifth axial section 1103 is a trapezoid, 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 mm.

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

When the first pipe 101 includes 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 the 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, and 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, with each axial segment being provided as a separate structure, with the plurality of axial segments being connected to form the second conduit 102.

The second conduit 102 comprises a first axial segment 1201, a second axial segment 1202 and a third axial segment 1205, the first axial segment 1201, the second axial segment 1202 and the third axial segment 1205 may be an integral structure, and the sizes and shapes of different axial segments are different; or may be provided separately, with each axial segment provided as a separate structure, with the plurality of axial segments being connected into the second conduit 102.

Optionally, as shown in fig. 4, a third fixing plate 1105 is disposed outside the fourth axial segment 1102, a fourth fixing plate 1106 is disposed outside the fifth axial segment 1103, and the third fixing plate 1105 is connected to the fourth fixing plate 1106, so that the fourth axial segment 1102 is connected to the fifth axial segment 1103.

For ease of manufacture and use, the second conduit 102 is provided as a composite 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 assembled into the first pipe 101 by the connection of the third fixing plate 1105 with the fourth fixing plate 1106.

Optionally, the mixer further includes a sealing ring, a sealing groove is formed in the fourth fixing plate 1106, the sealing ring is installed in the sealing groove, the third fixing plate 1105 is connected to the fourth fixing plate 1106, the sealing ring is pressed, and a gap between the third fixing plate 1105 and the fourth fixing plate 1106 is sealed, so that the fourth axial segment 1102 is connected to the fifth axial segment 1103, and a joint between the fourth axial segment 1102 and the fifth axial segment 1103 is sealed.

For the connection manner of the third fixing plate and the fourth fixing plate 1106, the connection manner of the first fixing plate 1101 and the fourth fixing plate 1106 is similar to that of the first fixing plate 1101 and the fourth fixing plate 1106, and is not repeated again.

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

It should be noted that the first end and the second end referred to in the embodiments of the present application refer to two opposite ends of the same structure, the first end of each structure is disposed on one side, and 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 segment is taken as the first end, and one end on the right side of each pipe or each axial segment is taken as the second end.

FIG. 5 is a block diagram illustrating a flow measurement system, as shown in FIG. 5, including a mixer 501, a testing device 502, and a computer device 503, according to an exemplary embodiment.

The mixer 501 is similar to the mixer shown 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 device. The testing device is located in the second channel of mixer 501. The computer device 503 may be a variety of types of devices such as a cell phone, a computer, a tablet computer, and so on.

The computer device 503 and the testing apparatus 502 are each configured with a wireless communication module, and the two establish a wireless communication connection through the configured wireless communication modules, through which interaction can be performed. The Wireless communication module can be any type of Wireless communication module such as a WiFi (Wireless-Fidelity) module, a bluetooth module, a mobile network communication module, and the like.

The testing device 502 is configured to measure the wet natural gas and send the obtained measurement parameters to the computer device 503, and the computer device 503 is configured to monitor the state of the wet natural gas according to the measurement parameters sent by the testing device 502.

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

601. first dry natural gas is input into the first channel 104, and 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 channel 105 to obtain wet natural gas.

603. The testing device measures the wet natural gas to obtain a measurement parameter, and periodically sends the obtained measurement parameter to the computer equipment, wherein the measurement parameter comprises at least one of a differential pressure signal 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 flow state currently.

According to the method provided by the embodiment of the application, the testing device is in wireless communication connection with 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 at present. Through the interaction between the computer equipment and the testing device, the change rate of the measurement parameters of the wet natural gas in the current period is obtained, so that whether the wet natural gas is in a stable flowing state or not is monitored according to the change rate, the mode is simple and accurate, the condition monitoring is not required to be carried out by testers through experience, and the reliability is improved.

In one possible implementation, the measured parameter includes a differential pressure signal; when the change rate is less than the preset change rate, determining that the wet natural gas is currently in a stable flow 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 predetermined rate of change is 2%.

In another possible implementation, the measurement parameter includes density; when the change rate is less than the preset change rate, determining that the wet natural gas is currently in a stable flow 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 testing device includes a differential pressure detection assembly; measuring wet natural gas to obtain measurement parameters, comprising:

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

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

In another possible implementation, the testing device includes a density detection component; measuring wet natural gas to obtain measurement parameters, comprising:

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

Fig. 7 is a flowchart illustrating a status monitoring method according to an exemplary embodiment, where as shown in fig. 7, the interaction subject of the embodiment of the present invention is a computer device and a testing apparatus, and the method includes:

701. the testing device periodically measures the wet natural gas and sends the 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 device can be various types of devices such as a mobile phone, a computer, a tablet computer and the like, and has a wireless communication function and a data processing function.

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

The 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 is influenced. Therefore, when the flow rate is tested, the mode of artificially manufacturing wet natural gas can be adopted, the test water is injected into the dry natural gas through the mixing device to form the wet natural gas, the testing device is placed in the wet natural gas conveying pipeline at the downstream of the mixing device, and the flow rate of the wet natural gas can be tested through the testing device. By adopting the mode of artificially manufacturing the wet natural gas, the state of the mixed liquid in the natural gas in the real environment can be simulated, so that the flow can be accurately tested.

Wherein the pressure of the wet natural gas is not lower than 2.0MPa (megapascals), and the volume fraction of the liquid in the wet natural gas is 0.1-2%, and further 0.5-1.5%. When wet natural gas is formed, dry natural gas can be used 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 3.5 MPa.

The testing device can measure 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 parameters of any type of wet natural gas, and the current state of the wet natural gas can be known according to the measurement parameters. After the measurement, the testing device may send the measured parameter to the computer device for condition monitoring of the wet natural gas by the computer device based on the measured parameter.

The testing device can periodically perform measurement, and each time measurement is performed to obtain a measurement parameter, the measurement parameter is sent to the computer device and stored by the computer device. The period adopted by the testing device can be 1 minute, 5 minutes or other periods, and can be determined according to the measurement requirements.

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

In a possible implementation manner, the testing device comprises a differential pressure detection assembly, and the wet natural gas is measured through the differential pressure detection assembly to obtain a differential pressure signal of the wet natural gas. The differential pressure signal is used for representing the magnitude of pressure variation generated by wet natural gas on 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 graphical representation of a differential pressure signal versus time according to an exemplary embodiment, and it can be seen from fig. 8 that the differential pressure signal of the wet natural gas downstream of the test section tends to stabilize after experiencing a condition transition, and a stable flow condition can be achieved.

Optionally, the testing device comprises a differential pressure flow meter, such as an orifice plate flow meter or a venturi flow meter. The differential pressure type flowmeter comprises a differential pressure detection assembly, a differential pressure conversion assembly and a flow display instrument. The differential pressure detection assembly measures to obtain a differential pressure signal, the differential pressure signal of the wet natural gas is in positive correlation with the flow, the differential pressure conversion assembly converts the differential pressure signal into corresponding flow, and the flow obtained through measurement is displayed by the flow display instrument.

In another possible implementation manner, the testing device comprises a density detection component, and the wet natural gas is measured through the density detection component to obtain the density of the wet natural gas. FIG. 9 is a graph illustrating a density versus time relationship, according to an example embodiment. As can be seen from fig. 9, the density of the wet natural gas downstream of the test section tends to stabilize after undergoing a condition transition, and a stable flow regime can be achieved.

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

702. And the computer equipment receives the measurement parameters and obtains the change rate of the measurement parameters in the current period.

The computer equipment obtains the measurement parameter sent by the testing device in the previous period each time the computer equipment receives the measurement parameter sent by the testing device, obtains the change rate of the measurement parameter in the current period according to the measurement parameter in the current period and the measurement parameter in the previous period, for example, calculates the difference between the measurement parameter in the current period and the measurement parameter in the previous period, calculates the quotient of the difference and the period, and obtains the change rate of the measurement parameter. The rate of change can represent the change of the measured parameter of the wet natural gas in the current period.

In one possible implementation, when the test parameter comprises a differential pressure signal, the computer device calculates a change rate of the differential pressure signal, and the change rate of the differential pressure signal can represent the change condition of the differential pressure signal of the wet natural gas in the current period.

In another possible implementation, where the test parameter includes density, the computer device calculates a rate of change of the density, which can be indicative of a change in the density of the wet natural gas over the current period.

In another possible implementation manner, the computer device may display the received measurement parameters, and may also display the change rate of the obtained measurement parameters for the 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. And the computer equipment judges whether the change rate of the measured parameters is smaller than a preset change rate, if so, the wet natural gas is determined to be in a stable flowing state, and if not, the operation is finished.

The wet natural gas is in a flowing state during transportation, but because the wet natural gas is injected with the test water, a period of flow and transition is required after the test water is injected into the natural gas to reach a stable flowing state, that is, 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 less than the preset change rate, the measured parameter of the wet natural gas changes more severely and is still in an unstable flowing state at present. If the change rate of the measured parameter is less than the preset change rate, the measured parameter of the wet natural gas is less changed and is in a stable flowing state currently.

In one possible implementation, when the measured parameter comprises a differential pressure signal, the computer device compares a rate of change of the differential pressure signal to a first predetermined rate of change, and when the rate of change of the differential pressure signal is less than the first predetermined 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, and 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 the density to a second predetermined rate of change, and when the rate of change of the density is less than the second predetermined rate of change, indicating that the density is no longer changing over time, determines that the wet natural gas is currently in a steady flow state. The second preset change rate may be 1%, 2%, or another value, and may be specifically determined according to the requirement of measurement accuracy.

In another possible implementation, when the measured parameter includes a differential pressure signal and a density, the computer device compares a rate of change of the differential pressure signal to a first preset rate of change and compares a rate of change of the density to a second preset rate of change, and determines that the wet natural gas is currently in a steady flow state 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. The change rate of each measurement parameter is obtained through computer equipment, and whether the wet natural gas reaches a stable flowing state or not 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 provided in an exemplary embodiment of the present application, where the terminal 1000 is configured to execute the steps executed by the computer device in the foregoing embodiments. The terminal 1000 can be a portable mobile terminal such as: a smart phone, a tablet computer, an MP3 player (Moving Picture Experts Group Audio Layer III, motion Picture Experts compression standard Audio Layer 3), an MP4 player (Moving Picture Experts Group Audio Layer IV, motion Picture Experts compression standard Audio Layer 4), a notebook computer, a desktop computer, a head-mounted device, or any other intelligent terminal. Terminal 1000 can also be referred to as user equipment, portable terminal, laptop terminal, desktop terminal, or the like by other names.

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

Processor 1001 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and so forth. The processor 1001 may be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The processor 1001 may also include a main processor and a coprocessor, where the main processor is a processor for Processing data in an awake state, and is also referred to as a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 1001 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content required to be displayed on the display screen. In some embodiments, the processor 1001 may further include an AI (Artificial Intelligence) processor for processing a computing operation related to machine learning.

Memory 1002 may include one or more computer-readable storage media, which may be non-transitory. The 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 methods provided by the method embodiments herein.

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

The peripheral interface 1003 may be used to connect at least one peripheral related to I/O (Input/Output) to the processor 1001 and the 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, any one or two of the processor 1001, the memory 1002, and the peripheral interface 1003 may be implemented on separate chips or circuit boards, which are not limited by this embodiment.

The Radio Frequency circuit 1004 is used for receiving and transmitting RF (Radio Frequency) signals, also called electromagnetic signals. The radio frequency circuitry 1004 communicates with communication networks and other communication devices via electromagnetic signals. The radio frequency circuit 1004 converts an electrical signal into an electromagnetic signal to transmit, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 1004 comprises: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a subscriber identity module card, and so forth. The radio frequency circuit 1004 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocols include, but are not limited to: metropolitan area networks, various generation mobile communication networks (2G, 3G, 4G, and 10G), Wireless local area networks, and/or WiFi (Wireless Fidelity) networks. In some embodiments, the rf circuit 1004 may further include NFC (Near Field Communication) related circuits, which are not limited in this 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 screen 1005 is a touch display screen, the display screen 1005 also has the ability to capture touch signals on or over the surface of the display screen 1005. The touch signal may be input to the processor 1001 as a control signal for processing. At this point, the display screen 1005 may also be used to provide virtual buttons and/or a virtual keyboard, also referred to as soft buttons and/or a soft keyboard. In some embodiments, display screen 1005 can be one, providing a front panel of terminal 1000; in other embodiments, display 1005 can be at least two, respectively disposed on different surfaces of terminal 1000 or in a folded design; in still other embodiments, display 1005 can be a flexible display disposed on a curved surface or on a folded surface of terminal 1000. Even more, the display screen 1005 may be arranged in a non-rectangular irregular figure, i.e., a shaped screen. The Display screen 1005 may be made of LCD (Liquid Crystal Display), OLED (Organic Light-Emitting Diode), and the like.

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

The audio circuit 1007 may include a microphone and a speaker. The microphone is used for collecting sound waves of a user and the environment, 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 realizing voice communication. For stereo sound collection or noise reduction purposes, multiple microphones can be provided, each at a different location of terminal 1000. The microphone may also be an array microphone or an omni-directional pick-up microphone. The speaker is used to convert electrical signals from the processor 1001 or the radio frequency circuit 1004 into sound waves. The loudspeaker can be a traditional film loudspeaker or a piezoelectric ceramic loudspeaker. When the speaker is a piezoelectric ceramic speaker, the speaker can be used for purposes such as converting an electric signal into a sound wave audible to a human being, or converting an electric signal into a sound wave inaudible to a human being to measure a distance. In some embodiments, the audio circuit 1007 may also include a headphone jack.

A Location component 1008 is employed to locate a current geographic Location of terminal 1000 for purposes of navigation or LBS (Location Based Service). The Positioning component 1008 may be a Positioning component based on the Global Positioning System (GPS) in the united states, the beidou System in china, the graves System in russia, or the galileo System in the european union.

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

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

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

The gyro sensor 1012 may detect a body direction and a rotation angle of the terminal 1000, and the gyro sensor 1012 and the acceleration sensor 1011 may cooperate to acquire a 3D motion of the user on the terminal 1000. From the data collected by the gyro sensor 1012, the processor 1001 may implement the following functions: motion sensing (such as changing the UI according to a user's tilting operation), image stabilization at the time of photographing, game control, and inertial navigation.

Pressure sensor 1013 can be disposed on a side frame of terminal 1000 and/or underneath display screen 1005. When pressure sensor 1013 is disposed on a side frame of terminal 1000, a user's grip signal on terminal 1000 can be detected, and processor 1001 performs left-right hand recognition or shortcut operation according to the grip signal collected by pressure sensor 1013. When the pressure sensor 1013 is disposed at a 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 control comprises 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 user according to the fingerprint collected by the fingerprint sensor 1014, or the fingerprint sensor 1014 identifies the user according to the collected fingerprint. Upon identifying that the user's identity is a trusted identity, the processor 1001 authorizes the user to have relevant sensitive operations including unlocking the screen, viewing encrypted information, downloading software, paying, and changing settings, etc. Fingerprint sensor 1014 can be disposed on the front, back, or side of terminal 1000. When a physical key or vendor Logo is provided on terminal 1000, fingerprint sensor 1014 can be integrated with the physical key or vendor Logo.

The optical sensor 1015 is used to collect the ambient light intensity. In one embodiment, the processor 1001 may control the display brightness of the display screen 1005 according to the ambient light intensity collected by the optical sensor 1015. Specifically, when the ambient light intensity is high, the display brightness of the display screen 1005 is increased; 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 also dynamically adjust the shooting parameters of the camera assembly 1006 according to the intensity of the ambient light collected by the optical sensor 1015.

Proximity sensor 1016, also known as a distance sensor, is typically disposed on a front panel of terminal 1000. Proximity sensor 1016 is used to gather the distance between the user and the front face of terminal 1000. In one embodiment, when proximity sensor 1016 detects that the distance between the user and the front surface of terminal 1000 is gradually reduced, processor 1001 controls display screen 1005 to switch from a bright screen state to a dark screen state; when proximity sensor 1016 detects that the distance between the user and the front of terminal 1000 is gradually increased, display screen 1005 is controlled by processor 1001 to switch from a breath-screen state to a bright-screen state.

Those skilled in the art will appreciate that the configuration shown in FIG. 10 is not intended to be limiting and that terminal 1000 can include more or fewer components than shown, or some 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 generate a relatively large difference due to different configurations or performances, and may include one or more processors (CPUs) 1101 and one or more memories 1102, where the memory 1102 stores at least one instruction, and the at least one instruction is loaded and executed by the processors 1101 to implement the methods provided by the foregoing method embodiments. Of course, the server may also have components such as a wired or wireless network interface, a keyboard, and an input/output interface, so as to perform input/output, and the server may also include other components for implementing the functions of the device, which are not described herein again.

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

An embodiment of the present application further provides a computer device, where the computer device includes a processor and a memory, where instructions are stored in the memory, and the instructions are loaded and executed by the processor to implement the following operations:

receiving the 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 flow state currently.

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

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

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

The embodiment of the present application further provides a computer-readable storage medium, where the storage medium stores instructions, and the instructions are loaded and executed by a processor to implement the operations performed in the state monitoring method of the foregoing embodiment.

The above description is only for facilitating the understanding of the technical solutions of the present application by those skilled in the art, and is not intended to limit the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A condition monitoring method is applied to a flow measurement system, wherein the flow measurement system comprises a mixer, a testing device and a computer device;

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

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

the first end of the second pipe (102) is connected with the first pipe (101), and the first end of the second pipe (102) is sealed;

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) inside the first pipeline (101) are respectively communicated with a second channel (105) inside the second pipeline (102);

the second conduit (102) comprising 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), the second axial segment (1202) being located at a second end of the second conduit (102), a first inner diameter dimension of the first axial segment (1201) being greater than a second inner diameter dimension of the second axial segment (1202);

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

the method comprises the following steps:

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

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

2. A method according to claim 1, characterized in that the outside of the first pipe (101) is provided with a first fixing plate (1101) and the outside of the second pipe (102) is provided with a second fixing plate (1204);

the first fixing plate (1101) is connected to the second fixing plate (1204), sealing a first end of the second pipe (102).

3. The method of claim 1, wherein the second conduit (102) further comprises a third axial segment (1205);

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

the third axial segment (1205) is tapered, an inner diameter dimension of a first end of the third axial segment (1205) is equal to the first inner diameter dimension, and an inner diameter dimension of a second end of the third axial segment (1205) is equal to the second inner diameter dimension.

4. The method of claim 1, wherein the first pipe (101) comprises a fourth axial segment (1102) and a fifth axial segment (1103);

the fourth axial segment (1102) is located at a first end of the first pipe (101), the fifth axial segment (1103) is located at a second end of the first pipe (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).

5. The method of claim 4, wherein the second inner diameter dimension is equal to the third inner diameter dimension.

6. The method of claim 4, wherein the first conduit (101) further comprises a sixth axial segment (1104);

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

the sixth axial segment (1104) is tapered, the first end of the sixth axial segment (1104) has an inner diameter dimension equal to the third inner diameter dimension, and the second end of the sixth axial segment (1104) has an inner diameter dimension equal to the fourth inner diameter dimension.

7. The method of claim 4,

a first end of the fifth axial segment (1103) is connected with the fourth axial segment (1102);

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

8. The method of claim 4, wherein an outer side of the fourth axial segment (1102) is provided with a third fixation plate (1105) and an outer side of the fifth axial segment (1103) is provided with a fourth fixation plate (1106);

the third retaining plate (1105) is connected to the fourth retaining plate (1106) such that the fourth axial segment (1102) is connected to the fifth axial segment (1103).

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

10. The method of claim 9, wherein the first predetermined rate of change is 2%.

11. The method of claim 1, wherein the measurement parameter comprises density; when the change rate is smaller than a preset change rate, determining that the wet natural gas is currently in a stable flow state includes:

12. The method of claim 11, wherein the second predetermined rate of change is 1%.

13. A computer device comprising a processor and a memory, the memory having stored therein instructions that are loaded and executed by the processor to carry out the operations performed in the condition monitoring method according to any one of claims 1 to 12.

14. A computer-readable storage medium storing instructions for execution by a processor to perform operations performed in a condition monitoring method according to any one of claims 1 to 12.