CN219266172U

CN219266172U - Pipeline type ultrasonic oil-water detection instrument

Info

Publication number: CN219266172U
Application number: CN202222399923.1U
Authority: CN
Inventors: 方尽娆; 吕桐
Original assignee: Pro Sonore Technology Co ltd
Current assignee: Pro Sonore Technology Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2023-06-27
Anticipated expiration: 2032-09-09

Abstract

The utility model discloses a pipeline type ultrasonic oil-water detection instrument, which relates to the technical field of oil-water detection and comprises an explosion-proof shell, wherein a connecting arm is arranged on the outer side of the explosion-proof shell, an ultrasonic probe is arranged at the end part of the connecting arm, a movable ultrasonic reflecting plate is arranged on one side, away from the connecting arm, of the ultrasonic probe, and the connecting arm is vertically arranged on the side wall of a pipeline. When the detection is not needed, the reflecting surface of the ultrasonic reflecting plate and the ultrasonic probe are isolated from the fluid in the pipeline, so that the time for immersing the reflecting surface of the ultrasonic reflecting plate and the ultrasonic probe in the fluid can be greatly reduced, and a large amount of stains are prevented from adhering, so that the difference in the interval between the ultrasonic probe and the reflecting surface of the ultrasonic reflecting plate is avoided when the fluid is detected, the type of the fluid is conveniently judged by the time difference of wave echo of the ultrasonic probe, and the oil-water detection accuracy is improved; in addition, the utility model has the advantages of convenient installation, compact structure, simple use and convenient subsequent maintenance.

Description

Pipeline type ultrasonic oil-water detection instrument

Technical Field

The utility model relates to the technical field of oil-water detection, in particular to a pipeline type ultrasonic oil-water detection instrument.

Background

The crude oil and the finished oil in petroleum, petrochemical and refining industries need to be dehydrated so as to ensure safe production and product quality. The existing domestic dehydration method for petroleum and finished oil mainly comprises manual dehydration and automatic dehydration, wherein the manual dehydration is to manually open a valve to drain, and after the naked eye confirms that oil discharge is started, the valve is closed, so that the purpose of draining the settled water at the bottom of an oil tank is achieved, the manual drainage has the disadvantages that the human factors are too large, the drainage is inaccurate, and because certain harmful gas exists in the discharged wastewater, certain potential safety hazard exists in manual drainage of workers on site, and the current drainage mode is less and less.

The current mainstream method is automatic dehydration, namely, an automatic dehydration device is adopted to carry out oil-water detection on fluid in a pipeline, and then an adjusting valve in the device is controlled to drain water. In the prior art, an ultrasonic probe is generally arranged on the inner wall of a pipeline for oil-water detection of fluid in the pipeline, and the emitted ultrasonic waves are reflected when encountering the opposite-side pipeline wall and return along the original path. However, the pipeline and the ultrasonic probe are soaked in the fluid for a long time, so that a large amount of stains which are difficult to wash away along with the fluid are easily attached to the inner surfaces of the ultrasonic probe and the pipeline, and the distance between the ultrasonic probe and the inner wall of the opposite side pipeline is slightly changed, so that the distance of ultrasonic flight is variable during detection, the type of the fluid is difficult to accurately judge by calculating the time difference between wave echoes, and the accuracy of oil-water detection is greatly reduced.

For the problems in the related art, no effective solution has been proposed at present.

Disclosure of Invention

Aiming at the problems in the related art, the utility model provides a pipeline type ultrasonic oil-water detection instrument for overcoming the technical problems existing in the prior related art.

The technical scheme of the utility model is realized as follows:

the utility model provides a pipeline type ultrasonic wave oil water detecting instrument, includes explosion-proof housing, the explosion-proof housing outside is provided with the linking arm, the linking arm tip is provided with ultrasonic probe, ultrasonic probe is provided with movable ultrasonic reflection board far away from one side of linking arm, the linking arm is installed on the pipeline lateral wall perpendicularly;

when the displacement of the ultrasonic wave reflecting plate is minimum, the ultrasonic wave reflecting plate can isolate the ultrasonic wave reflecting surface of the ultrasonic wave reflecting plate, the ultrasonic probe and the fluid in the pipeline;

when the displacement of the ultrasonic reflecting plate is maximum, the ultrasonic reflecting surface of the ultrasonic reflecting plate and the ultrasonic probe are immersed in the fluid in the pipeline.

Further, the inboard switching mechanism that is provided with of linking arm, switching mechanism is used for the drive the ultrasonic reflection board removes, pipeline one side is provided with the branch pipe, linking arm fixed mounting is in on the branch pipe.

Further, the opening and closing mechanism comprises an air cylinder, a connecting plate and a connecting rod, wherein the connecting plate is fixedly arranged at the end part of a piston rod of the air cylinder, and the connecting rod is fixedly connected between the connecting plate and the reflecting surface of the ultrasonic reflecting plate;

the connecting arm is internally provided with a cavity, the end part of the connecting arm is provided with a through hole communicated with the inside of the cavity, the cylinder body of the cylinder is fixedly arranged on the inner wall of the cavity, and the connecting rod is in sliding fit with the through hole.

Further, one side of the ultrasonic wave reflecting plate far away from the ultrasonic probe is a cambered surface which is matched with the contour of the inner wall of the pipeline, the side wall of the ultrasonic wave reflecting plate is set to be a conical surface, and the inner wall surface at the joint of the branch pipe and the pipeline is a conical surface which is matched with the contour of the conical surface of the side wall of the ultrasonic wave reflecting plate.

Further, the surface of the connecting arm is provided with a first flange, the outer side of the branch pipe is provided with a second flange, and the first flange is fixedly connected with the second flange through bolts.

Further, explosion-proof shell is including fixed connection's protecgulum, main casing, back lid in proper order, the protecgulum surface is provided with the display screen, the linking arm with main casing fixed connection, the inside main control board that is provided with of main casing, the main control board with ultrasonic probe the cylinder the display screen passes through electric signal connection.

Further, an explosion-proof wiring terminal for connecting an external lead is arranged on the outer side of the main shell, and the explosion-proof wiring terminal is connected with the main control board through an electric signal.

The beneficial effects of the utility model are as follows: by means of the technical scheme, the instrument is arranged on the branch pipe, the connection between the instrument and an external lead is completed through the explosion-proof wiring terminal, so that the equipment is electrified to run, the instrument is debugged by aiming at the display screen through the infrared remote controller, and various parameters of the instrument are normally displayed on the display screen; when the fluid in the pipeline normally flows and the instrument does not need to carry out oil-water detection on the fluid, the extension length of the piston rod of the air cylinder is kept to be zero, and at the moment, the side wall of the ultrasonic wave reflecting plate is attached to the conical surface of the branch pipe, so that the reflecting surface of the ultrasonic wave reflecting plate and the ultrasonic wave probe are isolated from the fluid in the pipeline; when oil-water detection is needed to be carried out on fluid in a pipeline, the connecting plate and the connecting rod are sequentially driven to move through the air cylinder, the ultrasonic reflection plate is driven to move to the maximum displacement position, at the moment, the reflection surface of the ultrasonic reflection plate and the ultrasonic probe are immersed in the fluid in the pipeline, the distance between the reflection surface of the ultrasonic reflection plate and the ultrasonic probe is kept constant, the main control plate drives the ultrasonic probe to emit ultrasonic waves, the emitted ultrasonic waves are reflected by the reflection surface of the ultrasonic reflection plate, then return to the ultrasonic probe along the original path and are received, oil-water detection is completed once, the main control plate collects signals of the ultrasonic probe in real time and calculates time difference of wave-emitting echo, and accordingly the type of the fluid is judged. When the detection is not needed, the reflecting surface of the ultrasonic reflecting plate and the ultrasonic probe are isolated from the fluid in the pipeline, so that the time for immersing the reflecting surface of the ultrasonic reflecting plate and the ultrasonic probe in the fluid can be greatly reduced, and a large amount of stains are prevented from adhering, so that the difference in the interval between the ultrasonic probe and the reflecting surface of the ultrasonic reflecting plate is avoided when the fluid is needed to be detected, the type of the fluid is conveniently judged by the time difference of wave echo of the ultrasonic probe, and the accuracy of oil-water detection is ensured; in addition, the utility model has the advantages of convenient installation, compact structure, simple use and convenient subsequent maintenance.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, 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 perspective view of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of an exploded structure according to an embodiment of the present utility model;

FIG. 3 is one of the partial cross-sectional schematic views of the installation on a pipe according to an embodiment of the present utility model;

FIG. 4 is a second schematic partial cross-sectional view of a pipe according to an embodiment of the present utility model.

In the figure:

1. an explosion-proof housing; 11. a front cover; 111. a display screen; 12. a main housing; 13. a rear cover; 2. a connecting arm; 21. a through hole; 3. an ultrasonic probe; 4. an opening and closing mechanism; 41. a cylinder; 42. a connecting plate; 43. a connecting rod; 5. an ultrasonic wave reflecting plate; 6. a pipe; 61. a branch pipe; 62. a second flange; 7. explosion-proof wiring terminals; 8. a first flange.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.

According to an embodiment of the utility model, a pipeline type ultrasonic oil-water detection instrument is provided.

As shown in fig. 1-4, the pipeline type ultrasonic oil-water detection instrument according to the embodiment of the utility model comprises an explosion-proof shell 1, wherein a connecting arm 2 is arranged on the outer side of the explosion-proof shell 1, an ultrasonic probe 3 is arranged at the end part of the connecting arm 2, a movable ultrasonic reflecting plate 5 is arranged on one side, away from the connecting arm 2, of the ultrasonic probe 3, and the connecting arm 2 is vertically arranged on the side wall of a pipeline 6;

when the displacement of the ultrasonic reflecting plate 5 is minimum, the ultrasonic reflecting plate 5 can isolate the ultrasonic reflecting surface of the ultrasonic reflecting plate 5 and the ultrasonic probe 3 from the fluid in the pipeline 6, so that when the fluid in the pipeline 6 normally flows and the instrument does not need to carry out oil-water detection on the fluid, the fluid in the pipeline 6 is not contacted with the reflecting surface of the ultrasonic reflecting plate 5 and the ultrasonic probe 3, a large amount of stains which are difficult to wash away along with the fluid due to long-time soaking of the reflecting surface of the ultrasonic reflecting plate 5 and the ultrasonic probe 3 are avoided, and the situation that the displacement of the ultrasonic reflecting plate 5 is constant and the distance between the ultrasonic probe 3 and the reflecting surface of the ultrasonic reflecting plate 5 is different is avoided, so that the accuracy of oil-water detection is improved by reducing the error of the ultrasonic propagation distance;

when the displacement of the ultrasonic reflection plate 5 is maximum, the ultrasonic reflection surface of the ultrasonic reflection plate 5 and the ultrasonic probe 3 are immersed in the fluid in the pipeline 6, so that when the fluid in the pipeline 6 is required to be subjected to oil-water detection, the ultrasonic reflection plate 5 is moved to the farthest distance, the ultrasonic wave emitted by the ultrasonic probe 3 propagates along the direction vertical to the surface of the ultrasonic probe 3, and is reflected by the emission surface of the ultrasonic reflection plate 5, returns to the ultrasonic probe 3 along the original path and is received, so that primary oil-water detection is completed.

In one embodiment, for the connecting arm 2, an opening and closing mechanism 4 is disposed on the inner side of the connecting arm 2, the opening and closing mechanism 4 is used for driving the ultrasonic reflection plate 5 to move, a branch pipe 61 is disposed on one side of the pipe 6, and the connecting arm 2 is fixedly mounted on the branch pipe 61, so that the ultrasonic reflection plate 5 can be driven to approach or separate from the ultrasonic probe 3 through the opening and closing mechanism 4.

In one embodiment, for the opening and closing mechanism 4, the opening and closing mechanism 4 includes a cylinder 41, a connecting plate 42, and a connecting rod 43, wherein the connecting plate 42 is fixedly mounted at the end of the piston rod of the cylinder 41, and the connecting rod 43 is fixedly connected between the connecting plate 42 and the reflecting surface of the ultrasonic reflecting plate 5;

the inside cavity that has offered of linking arm 2, the through-hole 21 that is linked together with the cavity inside has been offered to linking arm 2 tip, and the cylinder body fixed mounting of cylinder 41 is on the cavity inner wall, connecting rod 43 and through-hole 21 sliding fit to can drive connecting plate 42, connecting rod 43 in proper order through cylinder 41 and remove, and then drive ultrasonic reflection board 5 and remove.

In one embodiment, for the above-mentioned ultrasonic reflector 5, the side of the ultrasonic reflector 5 away from the ultrasonic probe 3 is a cambered surface matching the contour of the inner wall of the pipe 6, the side wall of the ultrasonic reflector 5 is a conical surface, and the inner wall surface at the junction of the branch pipe 61 and the pipe 6 is a conical surface matching the conical contour of the side wall of the ultrasonic reflector 5. In addition, when the extending length of the piston rod of the air cylinder 41 is zero, the side wall of the ultrasonic reflecting plate 5 is attached to the conical surface of the branch pipe 61, so that the joint of the branch pipe 61 and the pipeline 6 is sealed by the ultrasonic reflecting plate 5, the reflecting surface of the ultrasonic reflecting plate 5 and the ultrasonic probe 3 are isolated from fluid in the pipeline 6, and dirt accumulation caused by long-time soaking of the reflecting surface of the ultrasonic reflecting plate 5 and the ultrasonic probe 3 in the fluid is avoided.

In one embodiment, for the above-mentioned connection arm 2, the surface of the connection arm 2 is provided with a first flange 8, the outside of the branch pipe 61 is provided with a second flange 62, and the first flange 8 and the second flange 62 are fixedly connected by bolts, so that the instrument is convenient to install and detach, and further convenient to maintain and replace the ultrasonic probe 3.

In one embodiment, for the explosion-proof housing 1, the explosion-proof housing 1 includes a front cover 11, a main housing 12, and a rear cover 13 that are sequentially and fixedly connected, a display screen 111 is disposed on the surface of the front cover 11, the connecting arm 2 is fixedly connected with the main housing 12, a main control board is disposed inside the main housing 12, and the main control board is connected with the ultrasonic probe 3, the air cylinder 41, and the display screen 111 through electrical signals, so that signal collection of the ultrasonic probe 3 can be realized through the main control board, and the type of fluid can be judged through the time difference of the waveform of the ultrasonic probe, and various states of the current instrument can be displayed through the display screen 111. In addition, in a specific application, the display screen 111 is preferably a dot matrix liquid crystal display screen, and the display screen 111 is integrated with an infrared receiver, and can communicate with the infrared receiver on the instrument through an external infrared remote controller, so that when the instrument is debugged and parameter-set through the infrared remote controller, the display screen 111 can correspondingly display debugging and parameter-set data, and the debugging and maintenance of the instrument are convenient for installation and maintenance personnel.

In one embodiment, for the main casing 12, an explosion-proof wiring terminal 7 for connecting an external wire is arranged on the outer side of the main casing 12, and the explosion-proof wiring terminal 7 is connected with a main control board through an electrical signal, so that external output of communication and control signals is realized, and a secondary instrument is conveniently connected or other devices are conveniently controlled. In addition, in specific application, the external lead is connected with an external interface terminal of the instrument through an explosion-proof wiring terminal 7, and the external interface of the instrument comprises a 24V power supply interface 2P, RS485 interface 2P, a 4-20mA output interface 2P and a switching value output interface 2P, which are 8P interfaces in total.

In summary, by means of the above technical solution of the present utility model, the instrument is installed on the branch pipe 61 and the connection between the instrument and the external wire is completed through the explosion-proof connection terminal 7, so that the device is powered on to operate, and the infrared remote controller is aligned to the display screen 111 to debug the instrument, so that each parameter of the instrument is normally displayed on the display screen 111; when the fluid in the pipeline 6 normally flows and the instrument does not need to carry out oil-water detection on the fluid, the extension length of the piston rod of the air cylinder 41 is kept to be zero, and at the moment, the side wall of the ultrasonic wave reflecting plate 5 is attached to the conical surface of the branch pipe 61, so that the reflecting surface of the ultrasonic wave reflecting plate 5 and the ultrasonic wave probe 3 are isolated from the fluid in the pipeline 6; when oil-water detection is needed to be carried out on the fluid in the pipeline 6, the connecting plate 42 and the connecting rod 43 are sequentially driven to move through the air cylinder 41, the ultrasonic reflection plate 5 is driven to move to the maximum displacement position, at the moment, the reflection surface of the ultrasonic reflection plate 5 and the ultrasonic probe 3 are immersed in the fluid in the pipeline 6, the distance between the reflection surface and the ultrasonic probe is kept constant, the main control plate drives the ultrasonic probe 3 to emit ultrasonic waves, the emitted ultrasonic waves are returned to the ultrasonic probe 3 along the original path after being reflected by the emission surface of the ultrasonic reflection plate 5, oil-water detection is completed once, and the main control plate collects signals of the ultrasonic probe 3 in real time and calculates the time difference of wave echo, so that the type of the fluid is judged.

The beneficial effects are that: when the detection is not needed, the reflecting surface of the ultrasonic reflecting plate and the ultrasonic probe are isolated from the fluid in the pipeline, so that the time for immersing the reflecting surface of the ultrasonic reflecting plate and the ultrasonic probe in the fluid can be greatly reduced, and a large amount of stains are prevented from adhering, so that the difference in the interval between the ultrasonic probe and the reflecting surface of the ultrasonic reflecting plate is avoided when the fluid is needed to be detected, the type of the fluid is conveniently judged by the time difference of wave echo of the ultrasonic probe, and the accuracy of oil-water detection is ensured; in addition, the utility model has the advantages of convenient installation, compact structure, simple use and convenient subsequent maintenance.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. A pipeline-type ultrasonic oil-water detection instrument, comprising: the anti-explosion device comprises an anti-explosion shell (1) and is characterized in that a connecting arm (2) is arranged on the outer side of the anti-explosion shell (1), an ultrasonic probe (3) is arranged at the end part of the connecting arm (2), a movable ultrasonic reflecting plate (5) is arranged on one side, away from the connecting arm (2), of the ultrasonic probe (3), and the connecting arm (2) is vertically arranged on the side wall of a pipeline (6);

when the displacement of the ultrasonic wave reflecting plate (5) is minimum, the ultrasonic wave reflecting plate (5) can isolate the ultrasonic wave reflecting surface of the ultrasonic wave reflecting plate (5), the ultrasonic wave probe (3) and the fluid in the pipeline (6);

when the displacement of the ultrasonic reflection plate (5) is maximum, the ultrasonic reflection surface of the ultrasonic reflection plate (5) and the ultrasonic probe (3) are immersed in the fluid in the pipeline (6).

2. The pipeline type ultrasonic oil-water detection instrument according to claim 1, wherein an opening and closing mechanism (4) is arranged on the inner side of the connecting arm (2), the opening and closing mechanism (4) is used for driving the ultrasonic reflection plate (5) to move, a branch pipe (61) is arranged on one side of the pipeline (6), and the connecting arm (2) is fixedly arranged on the branch pipe (61).

3. The pipeline type ultrasonic oil-water detection instrument according to claim 2, wherein the opening and closing mechanism (4) comprises a cylinder (41), a connecting plate (42) and a connecting rod (43), the connecting plate (42) is fixedly arranged at the end part of a piston rod of the cylinder (41), and the connecting rod (43) is fixedly connected between the connecting plate (42) and the reflecting surface of the ultrasonic reflecting plate (5);

the connecting arm (2) is internally provided with a cavity, the end part of the connecting arm (2) is provided with a through hole (21) communicated with the inside of the cavity, the cylinder body of the cylinder (41) is fixedly arranged on the inner wall of the cavity, and the connecting rod (43) is in sliding fit with the through hole (21).

4. A pipeline-type ultrasonic oil-water detection instrument according to claim 3, wherein a side of the ultrasonic reflection plate (5) far away from the ultrasonic probe (3) is an arc surface which is matched with the outline of the inner wall of the pipeline (6), the side wall of the ultrasonic reflection plate (5) is provided with a conical surface, and the inner wall surface at the joint of the branch pipe (61) and the pipeline (6) is a conical surface which is matched with the outline of the conical surface of the side wall of the ultrasonic reflection plate (5).

5. The pipeline type ultrasonic oil-water detection instrument according to claim 4, wherein a first flange (8) is arranged on the surface of the connecting arm (2), a second flange (62) is arranged on the outer side of the branch pipe (61), and the first flange (8) and the second flange (62) are fixedly connected through bolts.

6. The pipeline type ultrasonic oil-water detection instrument according to claim 5, wherein the explosion-proof housing (1) comprises a front cover (11), a main housing (12) and a rear cover (13) which are sequentially and fixedly connected, a display screen (111) is arranged on the surface of the front cover (11), the connecting arm (2) is fixedly connected with the main housing (12), a main control board is arranged inside the main housing (12), and the main control board is connected with the ultrasonic probe (3), the air cylinder (41) and the display screen (111) through electric signals.

7. The pipeline type ultrasonic oil-water detection instrument according to claim 6, wherein an explosion-proof wiring terminal (7) for connecting an external lead is arranged on the outer side of the main shell (12), and the explosion-proof wiring terminal (7) is connected with the main control board through an electric signal.