Device for preventing oil condensation and wax precipitation for metering device

Abstract

The utility model discloses an oil condensation and wax precipitation prevention device for a metering device, which comprises a transfer cylinder, an oil inlet and an oil outlet are respectively arranged on two sides of the transfer cylinder, a sealing end cover is further arranged on the transfer cylinder, and a detachable oil condensation prevention structure is arranged on the sealing end cover. The oil condensation prevention structure comprises a mounting sleeve, the mounting sleeve is arranged on the sealing end cover, a heat insulation seat is clamped on the mounting sleeve, an electric heating rod is arranged on the heat insulation seat, the electric heating rod penetrates through the sealing end cover and extends into a flow guide structure in the transfer cylinder, and the flow guide structure is used for filtering and guiding petroleum liquid. According to the petroleum oil metering device, petroleum oil can be preheated, the fluidity of the petroleum oil can be improved, the situation that the petroleum oil is condensed in the metering device to cause oil condensation and wax precipitation is prevented, the metering accuracy of the metering device is guaranteed, the petroleum oil can be guided, meanwhile, the petroleum oil can be filtered, and impurities are prevented from entering the metering device.

Description

Technical Field

[0001] The utility model relates to a metering device, in particular to a device for preventing oil condensation and waxing used in a metering device. Background Art

[0002] With the development of world petroleum technology, metering stations are an important part of oil fields. Oil and gas metering refers to the measurement of oil and natural gas flow, which is mainly divided into oil well production metering and external flow metering. Oil well production metering refers to the measurement of the amount of oil and gas produced by a single well. It is the key data for oil well management and understanding of oil layer dynamics.

[0003] At present, when petroleum metering devices are used for a long time, due to the relatively viscous petroleum oil, long-term transportation and metering can easily cause oil condensation and waxing in the metering device. The condensation and waxing of the oil will affect the flow rate and flow of the petroleum oil, resulting in errors in the metering accuracy. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a device for preventing oil condensation and waxing for a metering device, which solves the problem that when the current petroleum metering device is used for a long time, the petroleum oil is relatively viscous, and long-term transportation and metering easily cause oil condensation and waxing in the metering device, and the condensation and waxing affect the flow rate and flow of the petroleum oil, resulting in errors in the metering accuracy.

[0005] In order to solve the above technical problems, the utility model provides a device for preventing oil condensation and wax deposition for a metering device, comprising a rotating cylinder, an oil inlet and an oil outlet are respectively arranged on both sides of the rotating cylinder, a sealing end cover is also arranged on the rotating cylinder, and a detachable anti-condensation oil structure is arranged on the sealing end cover; the anti-condensation oil structure comprises a mounting sleeve, the mounting sleeve is arranged on the sealing end cover, a heat insulation seat is clamped on the mounting sleeve, an electric heating rod is arranged on the heat insulation seat, the electric heating rod passes through the sealing end cover, and extends to the guide structure in the rotating cylinder, and the guide structure is used for filtering and guiding petroleum oil.

[0006] Preferably, a clamping block is provided at the bottom of the thermal insulation seat, one end of the clamping block is clamped in a clamping groove, and the clamping grooves are provided on both sides of the inner wall of the installation sleeve, so that the thermal insulation seat and the installation sleeve can be clamped and installed.

[0007] Preferably, a countersunk hole is further provided on the mounting sleeve, and a locking bolt is provided in the countersunk hole, so that the locking bolt can be installed in a concealed manner.

[0008] Preferably, one end of the locking bolt is connected to the threaded hole, and the threaded hole is arranged on one side of the clamping block, so that the locking bolt can be connected to the clamping block and the thermal insulation seat can be fixed.

[0009] Preferably, the diversion structure includes an inclined support plate, which is arranged on the inner wall of the transfer cylinder located on the side of the oil outlet. A mounting port is arranged on the inclined support plate, and a filter cylinder is arranged in the mounting port. The filter cylinder is arranged in an inclined manner, which can divert the petroleum oil and filter the petroleum oil at the same time.

[0010] Preferably, a connecting plate arranged parallel to the inclined support plate is provided on the outer side of the filter cartridge, so as to position the filter cartridge on the inclined support plate.

[0011] Preferably, a positioning groove is provided on the connecting plate, and a positioning rod is clamped in the positioning groove to position the connecting plate and the oblique supporting plate.

[0012] Preferably, an elastic sealing sleeve is provided on the positioning rod, and the elastic sealing sleeve is clamped in an annular clamping groove, and the annular clamping groove is provided on the inner wall of the positioning groove, so as to clamp and fix the connecting plate and the oblique support plate.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model can preheat petroleum oil, improve the fluidity of petroleum oil, prevent the condensation of petroleum oil in the metering device to cause oil condensation and wax formation, ensure the accuracy of the metering device, and facilitate the disassembly and replacement of the electric heating rod.

[0015] 2. The utility model can guide the petroleum oil and filter the petroleum oil to prevent impurities from entering the metering device. At the same time, the filter cartridge is easy to disassemble and assemble, so it is easy to clean the filtered impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0018] Figure 3 for Figure 2 A partial enlarged structural diagram of the middle A part;

[0019] Figure 4 It is a schematic diagram of the main cross-sectional structure of the flow guide structure in the utility model;

[0020] Figure 5 for Figure 4 A schematic diagram of the partial enlarged structure of the middle B part;

[0021] In the figure: 1, anti-condensation oil structure, 2, oil outlet flange, 3, oil outlet, 4, transfer cylinder, 5, oil inlet flange, 6, oil inlet, 7, sealing end cover, 8, flow guide structure, 11, electric heating rod, 12, mounting sleeve, 13, thermal insulation seat, 14, power connection line, 15, clamping block, 16, clamping groove, 17, countersunk hole, 18, locking bolt, 19, threaded hole, 81, oblique support plate, 82, mounting port, 83, filter cylinder, 84, connecting plate, 85, positioning rod, 86, elastic sealing sleeve, 87, annular clamping groove, 88, positioning groove. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the accompanying drawings in the embodiments of the utility model. All directional indications in the utility model (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] See also Figure 1-Figure 3 A device for preventing oil condensation and wax deposition for a metering device comprises a rotating cylinder 4, an oil inlet 6 and an oil outlet 3 are respectively arranged on both sides of the rotating cylinder 4, a sealing end cover 7 is also arranged on the rotating cylinder 4, and a detachable anti-condensation oil structure 1 is arranged on the sealing end cover 7; the anti-condensation oil structure 1 comprises a mounting sleeve 12, the mounting sleeve 12 is arranged on the sealing end cover 7, a heat insulation seat 13 is clamped on the mounting sleeve 12, an electric heating rod 11 is arranged on the heat insulation seat 13, the electric heating rod 11 passes through the sealing end cover 7, and extends to the guide structure 8 in the rotating cylinder 4, a power connection line 14 is also arranged on the heat insulation seat 13, the power connection line 14 is connected to an external temperature control switch and the electric heating rod 11, and is used to control the temperature of the electric heating rod 11.

[0024] First, the oil inlet 6 is connected to the oil pipeline, and the oil outlet 3 is connected to the oil inlet end of the metering device. When the petroleum oil is transported to the transfer cylinder 4 through the oil pipeline, the electric heating rod 11 is controlled by the external temperature control switch to heat it. The electric heating rod 11 heats the petroleum oil in the transfer cylinder 4. At the same time, the guide structure 8 can guide and filter the petroleum oil. The heated and filtered petroleum oil is transported to the metering device through the oil outlet 3, which can effectively prevent the petroleum oil from being overcooled and causing oil condensation and wax formation.

[0025] A clamping block 15 is provided at the bottom of the heat insulation seat 13 , one end of which is clamped in a clamping groove 16 . The clamping groove 16 is provided on both sides of the inner wall of the installation sleeve 12 , so that the heat insulation seat 13 and the installation sleeve 12 can be clamped and installed.

[0026] When the electric heating rod 11 is installed, the clamping block 15 on the heat insulating seat 13 is clamped into the clamping groove 16 , so that the heat insulating seat 13 and the installation sleeve 12 can be positioned.

[0027] A countersunk hole 17 is also provided on the mounting sleeve 12, and a locking bolt 18 is provided in the countersunk hole 17, so that the locking bolt 18 can be installed in a hidden manner. One end of the locking bolt 18 is connected to a threaded hole 19, and the threaded hole 19 is provided on one side of the clamping block 15, so that the locking bolt 18 can be connected to the clamping block 15 and the thermal insulation seat 13 can be fixed.

[0028] After the clamping block 15 is inserted into the clamping groove 16, align the locking bolt 18 with the threaded hole 19 and rotate the locking bolt 18. The locking bolt 18 is connected to the threaded hole 19 to complete the fixation of the clamping block 15 and the mounting sleeve 12. When the electric heating rod 11 needs to be disassembled, loosen the locking bolt 18, pull the insulation seat 13 upwards, separate the clamping block 15 from the clamping groove 16 on the insulation seat 13, and move the electric heating rod 11 out of the mounting sleeve 12. The electric heating rod 11 can be replaced.

[0029] Furthermore, an oil inlet flange 5 is provided on the oil inlet 6, and an oil outlet flange 2 is provided on the oil outlet 3, so that the oil inlet 6 can be easily connected to the liquid delivery pipeline, and the oil outlet 3 can be easily connected to the oil inlet end of the metering device.

[0030] As a specific embodiment of this application, please refer to Figure 5 The guide structure 8 is used for filtering and guiding petroleum oil. The guide structure 8 includes an inclined support plate 81, which is arranged on the inner wall of the transfer cylinder 4 located on one side of the oil outlet 3. A mounting port 82 is arranged on the inclined support plate 81, and a filter cylinder 83 is arranged in the mounting port 82. The inclined arrangement can guide the petroleum oil and filter the petroleum oil at the same time.

[0031] When the petroleum oil enters the transfer cylinder 4, the petroleum oil can be guided due to the setting of the inclined support plate 81. At the same time, when the petroleum oil passes through the filter cylinder 83, the filter cylinder 83 can filter the impurities in the petroleum oil. The filtered petroleum oil is guided by the inclined support plate 81 and transported to the oil outlet 3, and the petroleum oil is transported to the metering device through the oil outlet 3.

[0032] Furthermore, a connecting plate 84 is provided on the outside of the filter cartridge 83 and is arranged parallel to the inclined support plate 81, so that the filter cartridge 83 can be positioned on the inclined support plate 81. When the filter cartridge 83 is installed, the filter cartridge 83 is passed through the installation opening 82, and the connecting plate 84 is fitted with the inclined support plate 81, so that the filter cartridge 83 can be installed.

[0033] Furthermore, a positioning groove 88 is provided on the connecting plate 84, and the positioning rod 85 is clamped in the positioning groove 88. The positioning groove 88 on the connecting plate 84 is aligned with the positioning rod 85, and the positioning rod 85 is inserted into the positioning groove 88, so that the connecting plate 84 and the inclined support plate 81 can be positioned for installation.

[0034] Furthermore, an elastic sealing sleeve 86 is provided on the positioning rod 85, and the elastic sealing sleeve 86 is clamped in the annular clamping groove 87. The annular clamping groove 87 is provided on the inner wall of the positioning groove 88. When the positioning rod 85 is inserted into the positioning groove 88, the elastic sealing sleeve 86 is deformed and the elastic sealing sleeve 86 is clamped in the annular clamping groove 87, which can clamp and fix the connecting plate 84 and the inclined support plate 81, thereby improving the firmness of the connecting plate 84 and the inclined support plate 81 during installation.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for preventing oil condensation and waxing for a metering device, characterized in that: The invention comprises a rotating cylinder (4), wherein an oil inlet (6) and an oil outlet (3) are respectively arranged on both sides of the rotating cylinder (4), and a sealing end cover (7) is also arranged on the rotating cylinder (4), and a detachable anti-condensation oil structure (1) is arranged on the sealing end cover (7); the anti-condensation oil structure (1) comprises a mounting sleeve (12), the mounting sleeve (12) is arranged on the sealing end cover (7), a heat insulation seat (13) is clamped on the mounting sleeve (12), and an electric heating rod (11) is arranged on the heat insulation seat (13), the electric heating rod (11) passes through the sealing end cover (7) and extends into a flow guide structure (8) in the rotating cylinder (4), and the flow guide structure (8) is used for filtering and guiding petroleum oil.

2. The device for preventing oil condensation and waxing for a metering device according to claim 1, characterized in that: A clamping block (15) is arranged at the bottom of the heat insulation seat (13), one end of the clamping block (15) is clamped in a clamping groove (16), and the clamping groove (16) is arranged on both sides of the inner wall of the installation sleeve (12).

3. The device for preventing oil condensation and waxing for a metering device according to claim 2, characterized in that: A countersunk hole (17) is also provided on the mounting sleeve (12), and a locking bolt (18) is provided in the countersunk hole (17).

4. The device for preventing oil condensation and waxing for a metering device according to claim 3, characterized in that: One end of the locking bolt (18) is connected to a threaded hole (19), and the threaded hole (19) is arranged on one side of the clamping block (15).

5. The device for preventing oil condensation and waxing for a metering device according to claim 1, characterized in that: The flow guide structure (8) comprises an inclined support plate (81), wherein the inclined support plate (81) is arranged on the inner wall of the transfer cylinder (4) located on one side of the oil outlet (3), and a mounting opening (82) is arranged on the inclined support plate (81), and a filter cylinder (83) is arranged in the mounting opening (82).

6. The device for preventing oil condensation and waxing for a metering device according to claim 5, characterized in that: A connecting plate (84) arranged parallel to the oblique support plate (81) is provided on the outside of the filter cylinder (83).

7. The device for preventing oil condensation and waxing for a metering device according to claim 6, characterized in that: The connecting plate (84) is provided with a positioning groove (88), and the positioning rod (85) is clamped in the positioning groove (88).

8. The device for preventing oil condensation and waxing for a metering device according to claim 7, characterized in that: An elastic sealing sleeve (86) is arranged on the positioning rod (85), and the elastic sealing sleeve (86) is clamped in an annular clamping groove (87), and the annular clamping groove (87) is arranged on the inner wall of the positioning groove (88).

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