CN217483636U

CN217483636U - Online calibration device for oil production process liquid level transmitter

Info

Publication number: CN217483636U
Application number: CN202123223424.9U
Authority: CN
Inventors: 甘景建; 谷现伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-09-23
Anticipated expiration: 2031-12-21

Abstract

The utility model belongs to the technical field of the liquid level calibration equipment, especially, for online calibration device of oil recovery process liquid level changer, including the flotation pontoon level gauge, the top and the bottom of flotation pontoon level gauge are connected with stop valve and lower stop valve respectively, go up on stop valve and the lower stop valve respectively quick dismantlement install pipe one and pipe two fast. The utility model has the advantages that the hollow float bowl is not provided with calibration liquid, the floating block floats by the liquid in the float bowl liquid level meter, and the situation of measurement error caused by density difference between different liquids is avoided; a device like a communicator can be formed between the float level meter and the hollow float through the conduit I and the conduit II, so that the liquid levels in the float level meter and the hollow float can be kept consistent; through reading the reading of electronic scale, just can accomplish the accurate measurement to the liquid level through calculating again, can mark the liquid level of flotation pontoon level gauge through the manual operator at any time, the operation is simple and easy, marks the accuracy, and does not influence normal production.

Description

Online calibration device for oil production process liquid level transmitter

Technical Field

The utility model relates to a liquid level calibration equipment technical field especially relates to oil recovery flow liquid level changer online calibration device.

Background

The offshore oil production platform comprises a float type liquid level transmitter, a differential pressure type differential pressure transmitter, a magnetic telescopic liquid level transmitter and the like, wherein the liquid level transmitter is used in the production process of the offshore oil production platform, and liquid level signals acquired on site are transmitted into 4-20mA signals to be transmitted to a central control system in the use process, so that operators on duty can check, alarm the liquid level, automatically adjust the liquid level and shut down the production conveniently. In the use process, the transmitter can have certain drift and error, cause the staff on duty to the production flow erroneous judgement, even cause and turn off, influence the oil field normal production.

At present, the calibration method adopted by the offshore platform is as follows: the position of the magnetic flap liquid level meter is read by visual inspection, and the zero point and the measuring range of the liquid level transmitter are adjusted by a manual operator (FLUKE 735/745) so as to realize the calibration of the liquid level transmitter.

This detection method has some problems:

1. the test data is inaccurate, and the calibration error is easy to occur. Human eyes are adopted for reading, and errors are inevitably caused.

2. The influence of the quality of a floater in the magnetic turning plate is different from the measurement modes of a buoy and the like of the liquid level transmitter, and errors often exist.

3. The measuring method cannot adopt on-line measurement, and influences normal production to a certain extent, so that the on-line calibration device of the liquid level transmitter in the oil extraction process is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an online calibration device of a liquid level transmitter in the oil extraction process, which does not arrange calibration liquid in a hollow float bowl, and floats a floating block by the liquid in a float bowl liquid level meter, thereby avoiding the occurrence of the situation of measurement error caused by the density difference between different liquids; a communicating device can be formed between the float level meter and the hollow float through the first guide pipe and the second guide pipe, so that the liquid levels in the float level meter and the hollow float can be kept consistent; through reading the reading of electronic scale, just can accomplish the accurate measurement to the liquid level through calculating again, can mark the liquid level of flotation pontoon level gauge through the manual operator at any time, the operation is simple and easy, marks the accuracy, and does not influence normal production.

The embodiment of the utility model is realized like this:

the embodiment of the utility model provides an online calibration device of oil recovery process liquid level changer, including the flotation pontoon level gauge, the top and the bottom of flotation pontoon level gauge are connected with stop valve and lower stop valve respectively, go up on stop valve and the lower stop valve respectively quick dismantlement install pipe one and pipe two, one side of flotation pontoon level gauge is equipped with the bottom and is closed cavity flotation pontoon, pipe two one ends of keeping away from the flotation pontoon level gauge extend to in the cavity flotation pontoon and with hollow flotation pontoon sealing connection be in the same place, the top fixed mounting of cavity flotation pontoon has the electronic scale that liquid increased and decreased in the detection cavity flotation pontoon, pipe one end of keeping away from the flotation pontoon level gauge extends to in the cavity flotation pontoon.

Preferably, a floating block is arranged in the hollow float bowl in a sliding mode, a round rod is fixedly arranged at the top of the floating block, and the top end of the round rod is fixedly connected with the electronic scale.

Preferably, quick connectors are fixedly mounted at one ends, close to the buoy liquid level meter, of the first guide pipe and the second guide pipe, and the two quick connectors are connected with the upper stop valve and the lower stop valve in a threaded sealing mode respectively.

Preferably, the electronic scale is provided with an assembly hole, and the guide pipe penetrates through the assembly hole and is fixedly connected with the inner wall of the assembly hole in a sealing manner.

Preferably, the same sealing ring is arranged between the electronic scale and the hollow buoy.

Preferably, the bottom of the hollow buoy is provided with a mounting hole, and the second guide pipe penetrates through the mounting hole and is fixedly connected with the inner wall of the mounting hole in a sealing manner.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model has the advantages that the hollow float bowl is not provided with calibration liquid, the floating block floats by the liquid in the float bowl liquid level meter, and the situation of measurement error caused by density difference between different liquids is avoided;

2. the utility model can form a communicating device between the float level meter and the hollow float through the first conduit and the second conduit, thereby ensuring that the liquid levels in the float level meter and the hollow float can be kept consistent;

3. the utility model discloses a reading through reading the electronic scale just can accomplish the accurate measurement to the liquid level through calculating again, can mark the liquid level of flotation pontoon level gauge at any time through the manual operator, and the operation is simple and easy, marks the accuracy, and does not influence normal production.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

fig. 3 is an enlarged schematic view of a portion B in fig. 1.

Fig. 4 is a schematic structural diagram of the hollow float bowl and the electronic scale of the present invention.

In the figure: 1. a float level meter; 2. an upper stop valve; 3. a lower stop valve; 4. a first conduit; 5. a second conduit; 6. a hollow buoy; 61. floating blocks; 62. a round bar; 7. an electronic scale; 8. a quick connector.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship that the product of the present invention is usually placed when in use, only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-4, the embodiment of the utility model provides an online calibration device of oil recovery process level transmitter, including flotation pontoon level gauge 1, flotation pontoon level gauge 1's top and bottom are connected with stop valve 2 and lower stop valve 3 respectively, it installs pipe one 4 and pipe two 5 to go up quick dismantlement respectively on stop valve 2 and the lower stop valve 3, one side of flotation pontoon level gauge 1 is equipped with the bottom and is closed cavity flotation pontoon 6, pipe two 5 keep away from flotation pontoon level gauge 1 one end extend to in the cavity flotation pontoon 6 and with hollow flotation pontoon 6 sealing connection together, the top fixed mounting of cavity flotation pontoon 6 has the electronic scale 7 that detects the interior liquid increase and decrease of cavity flotation pontoon 6, the one end that flotation pontoon level gauge 1 was kept away from to pipe one 4 extends to in the cavity flotation pontoon 6.

A floating block 61 is arranged in the hollow buoy 6 in a sliding mode, a round rod 62 is fixedly arranged at the top of the floating block 61, and the top end of the round rod 62 is fixedly connected with the electronic scale 7.

Specifically, when the liquid level in the hollow float 6 changes by arranging the floating block 61 and the round rod 62, the floating block 61 can push the electronic scale 7 through the round rod 62, so that the degree of the electronic scale 7 changes.

The first 4 and second 5 guide pipes are close to the equal fixed mounting of one end of flotation pontoon level gauge 1 and have quick-operation joint 8, and two quick-operation joints 8 are in the same place with

last stop valve

2 and 3 threaded seal of lower stop valve respectively.

Specifically, the first conduit 4 and the second conduit 5 can be rapidly and hermetically connected with the upper stop valve 2 and the lower stop valve 3 through the two quick connectors 8.

An assembly hole is formed in the electronic scale 7, and the first guide pipe 4 penetrates through the assembly hole and is fixedly connected with the inner wall of the assembly hole in a sealing mode.

The same sealing ring is arranged between the electronic scale 7 and the hollow buoy 6.

Specifically, the sealing effect between the hollow buoy 6 and the electronic scale 7 can be enhanced by arranging the sealing ring.

The bottom of the hollow float 6 is provided with a mounting hole, and the second guide pipe 5 penetrates through the mounting hole and is fixedly connected with the inner wall of the mounting hole in a sealing manner.

Specifically, the second conduit 5 can be used for communicating between the float level meter 1 and the hollow float 6.

The working principle is as follows: during installation, the first conduit 4 and the second conduit 5 are respectively and rapidly connected with the upper stop valve 2 and the lower stop valve 3 through the two quick connectors 8, then the upper stop valve 2 and the lower stop valve 3 are opened, therefore, the hollow buoy 6 forms a device similar to a communicating vessel through the first conduit 4 and the second conduit 5, so as to ensure that the liquid levels in the buoy level gauge 1 and the hollow buoy 6 are at the same height, liquid entering the hollow buoy 6 generates buoyancy on the floating block 61, the floating block 61 floats upwards and pushes up the electronic scale 7 through the round rod 62, the degree on the electronic scale 7 is changed after being subjected to pressure, the current liquid level position is measured according to rho gh = pressure, the current correct output current can be calculated according to the liquid level measuring range corresponding to 14-20ma current of the buoy level gauge, and the current calibration is carried out by a manual operator (735 type: UFLKE/745), and after the liquid level is changed, reading the electronic scale 7 for multiple times, and completing multiple times of calibration under the condition of not influencing production and use.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art can make various modifications and variations. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Oil recovery process level transmitter online calibration device, including flotation pontoon level gauge (1), its characterized in that: the top and the bottom of flotation pontoon level gauge (1) are connected with stop valve (2) and lower stop valve (3) respectively, it installs pipe (4) and pipe two (5) to go up to stop valve (2) and lower stop valve (3) on fast dismantlement respectively, one side of flotation pontoon level gauge (1) is equipped with the bottom and is closed cavity flotation pontoon (6), the one end that flotation pontoon level gauge (1) was kept away from in pipe two (5) extends to in cavity flotation pontoon (6) and with cavity flotation pontoon (6) sealing connection together, the top fixed mounting of cavity flotation pontoon (6) has electronic scale (7) that detect the interior liquid increase and decrease of cavity flotation pontoon (6), the one end that flotation pontoon level gauge (1) was kept away from in pipe (4) extends to in cavity flotation pontoon (6).

2. The online calibration device for the oil production process liquid level transmitter of claim 1, wherein: slidable mounting has floating block (61) in cavity flotation pontoon (6), the top fixed mounting of floating block (61) has round bar (62), the top and electronic scale (7) fixed connection of round bar (62) are in the same place.

3. The online calibration device for the oil production process liquid level transmitter of claim 1, wherein: the equal fixed mounting of one end that pipe (4) and pipe two (5) are close to flotation pontoon level gauge (1) has quick-operation joint (8), and two quick-operation joint (8) are in the same place with last stop valve (2) and lower stop valve (3) thread seal respectively.

4. The online calibration device for the oil production process liquid level transmitter of claim 1, wherein: an assembly hole is formed in the electronic scale (7), and the first guide pipe (4) penetrates through the assembly hole and is fixedly connected with the inner wall of the assembly hole in a sealing mode.

5. The online calibration device for the oil production process liquid level transmitter of claim 1, wherein: and the same sealing ring is arranged between the electronic scale (7) and the hollow buoy (6).

6. The online calibration device for the oil production process liquid level transmitter of claim 1, wherein: the bottom of the hollow buoy (6) is provided with a mounting hole, and the second guide pipe (5) penetrates through the mounting hole and is fixedly connected with the inner wall of the mounting hole in a sealing mode.