CN110857750B - Movable docking device and method for primary standard device of natural gas flow - Google Patents
Movable docking device and method for primary standard device of natural gas flow Download PDFInfo
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- CN110857750B CN110857750B CN201810971660.2A CN201810971660A CN110857750B CN 110857750 B CN110857750 B CN 110857750B CN 201810971660 A CN201810971660 A CN 201810971660A CN 110857750 B CN110857750 B CN 110857750B
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 51
- 239000003345 natural gas Substances 0.000 title claims abstract description 39
- 238000003032 molecular docking Methods 0.000 title claims description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 363
- 238000005303 weighing Methods 0.000 claims abstract description 97
- 230000005540 biological transmission Effects 0.000 claims abstract description 60
- 230000008569 process Effects 0.000 claims abstract description 31
- 230000007723 transport mechanism Effects 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 abstract description 24
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 description 9
- 230000009471 action Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/037—Quick connecting means, e.g. couplings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
Abstract
The invention discloses a mobile butt joint device and a mobile butt joint method for a natural gas flow primary standard device, and belongs to the technical field of natural gas flow measurement. This remove interfacing apparatus includes: the device comprises a first supporting mechanism, a transmission mechanism, a second supporting mechanism, a first driving mechanism and a second driving mechanism; the first supporting mechanism and the second supporting mechanism are respectively arranged at the first end and the second end of the transmission mechanism, and the second end of the transmission mechanism is positioned at the process pipeline flange; the first support mechanism is used for bearing the weighing tank body, the first driving mechanism is used for driving the first support mechanism and the weighing tank body to be transmitted to the upper end of the second support mechanism on the transmission mechanism, and the second support mechanism is used for supporting the first support mechanism and the weighing tank body; the second driving mechanism is used for driving the second supporting mechanism to move up and down and rotate. The movable butt joint device is simple in structure and operation method, and is beneficial to realizing accurate seamless and stress-free butt joint between the weighing tank body connecting pipeline flange and the process pipeline flange.
Description
Technical Field
The invention relates to the technical field of natural gas flow measurement, in particular to a mobile docking device and a mobile docking method for a natural gas flow primary standard device.
Background
The natural gas flow primary standard device adopts a quality-time method to detect the natural gas flow in a process pipeline and comprises a weighing tank body. When the weighing tank body is inflated before weighing, the connecting pipeline flange of the weighing tank body is required to be in seamless stress-free butt joint with the process pipeline flange. During weighing, the connecting pipeline flange of the weighing tank body needs to be disconnected from the process pipeline flange. In the actual operation process, because the connecting pipeline flange of the weighing tank body and the process pipeline flange are subjected to processing deviation, uneven foundation, stratum settlement, multiple times of movement of the weighing tank body and the like, the connecting pipeline flange of the weighing tank body and the process pipeline flange are staggered, so that the stress butt joint problem exists between the connecting pipeline flange and the process pipeline flange, the connecting pipeline flange and the process pipeline flange cannot be easily butted, and potential safety hazards exist.
In the related art, the connecting pipeline flange of the weighing tank body is in hard connection with the process pipeline flange by bolts, but the problem of stress butt joint between the connecting pipeline flange of the weighing tank body and the process pipeline flange still cannot be solved.
Disclosure of Invention
The embodiment of the invention provides a mobile docking device and a mobile docking method for a natural gas flow primary standard device, which can solve the technical problem. The specific technical scheme is as follows:
in one aspect, an embodiment of the present invention provides a mobile docking device for a primary standard device of a natural gas flow rate, where the mobile docking device may include: the device comprises a first supporting mechanism, a transmission mechanism, a second supporting mechanism, a first driving mechanism and a second driving mechanism;
the first supporting mechanism and the second supporting mechanism are respectively arranged at the first end and the second end of the transmission mechanism, and the second end of the transmission mechanism is positioned at a process pipeline flange;
the first supporting mechanism is used for bearing a weighing tank body, the first driving mechanism is used for driving the first supporting mechanism and the weighing tank body to be conveyed to the position above the second supporting mechanism on the conveying mechanism, and the second supporting mechanism is used for supporting the first supporting mechanism and the weighing tank body;
the second driving mechanism is used for driving the second supporting mechanism to move up and down and rotate.
In one possible design, the mobile docking device further includes: the device comprises a controller, a limit switch and a plurality of touch blocks;
the limit switch is arranged on the first supporting mechanism, one part of the touch blocks are arranged on the transmission mechanism at intervals along the transmission direction, the rest part of the touch blocks are arranged on the second supporting mechanism, and the limit switch and the touch blocks are in contact with each other in the transmission process of the first supporting mechanism and the weighing tank body;
the limit switch, the first driving mechanism and the second driving mechanism are all electrically connected with the controller;
the controller is configured to: when the limit switch touches the touch block, the controller controls the first driving mechanism to drive the first supporting mechanism and the transmission speed of the weighing tank body on the transmission mechanism;
the transmission speed of the first supporting mechanism and the weighing tank body on the transmission mechanism is 0.2-10 cm/s.
In one possible design, the transport mechanism includes: the second support mechanism is arranged between the two slide rails;
the bottom surface of the first supporting mechanism is provided with two sliding grooves;
the sliding groove is slidably sleeved on the sliding rail.
In one possible design, the transport mechanism includes: the device comprises two oppositely arranged conveyor belts and tension rollers sleeved in the conveyor belts;
the second supporting mechanism is arranged between the two conveyor belts.
In one possible design, the second support mechanism includes: a support platform and a plurality of balls;
the support platform is characterized in that a plurality of cambered surface grooves are formed in the top surface of the support platform, a limiting groove is formed in the bottom surface of the first support mechanism, and the ball can roll and is located in the cambered surface grooves and the limiting groove at the same time.
In a possible design, the depth of the cambered surface groove is 1/3-2/3 times of the diameter of the round ball.
In one possible design, the second drive mechanism includes: the driving device comprises a first driving unit, a second driving unit and a third driving unit;
the first driving unit is used for driving the second supporting mechanism to move up and down;
the second driving unit is used for driving the second supporting mechanism to rotate along a first direction, and the first direction is as follows: the transmission mechanism transmits the direction of the first support mechanism;
the third driving unit is used for driving the second supporting mechanism to rotate along a second direction, and the second direction is as follows: a direction perpendicular to the first direction.
In one possible design, the second drive mechanism includes: a plurality of fourth driving units for pulling and pushing the second supporting mechanism;
the fourth driving units are uniformly distributed at the lower end of the second supporting mechanism.
In one possible design, the mobile docking device further includes: and the second driving mechanism is used for driving the first supporting mechanism to move up and down.
In another aspect, an embodiment of the present invention provides a mobile docking method for a primary standard device of a natural gas flow rate, where the mobile docking method includes:
during inflation, the weighing tank body is fixed on a first support mechanism, and the first support mechanism and the weighing tank body are conveyed to the position above a second support mechanism on a conveying mechanism through a first driving mechanism;
the second supporting mechanism is driven to ascend through the second driving mechanism so as to support the first supporting mechanism and the weighing tank body;
the second driving mechanism drives the second supporting mechanism to move up and down and rotate, so that the connecting pipeline flange on the weighing tank body is in butt joint with the process pipeline flange.
In one possible design, the mobile docking method further includes:
the first supporting mechanism is driven to move up and down through a first driving mechanism so as to place the first supporting mechanism on the transmission mechanism or the second supporting mechanism, or the first supporting mechanism is separated from the transmission mechanism or the second supporting mechanism.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
according to the mobile butt joint device for the natural gas flow primary standard device, the first supporting mechanism and the weighing tank body are driven by the first driving mechanism to be transmitted from the first end of the transmission mechanism to the second end of the transmission mechanism, the second driving mechanism drives the second supporting mechanism to ascend so as to support the first supporting mechanism and the weighing tank body, and then the second supporting mechanism is driven by the second driving mechanism to move up and down and rotate so as to enable the connecting pipeline flange on the weighing tank body to be in seamless and stress-free butt joint with the process pipeline flange accurately. After the gas is filled, the second supporting mechanism is driven to descend by the second driving mechanism, the first supporting mechanism and the weighing tank body are transmitted to the first end of the transmission mechanism through the first driving mechanism, namely the weighing end of the natural gas flow primary standard device, so that natural gas in the weighing tank body is weighed, and the natural gas flow is further determined. The movable butt joint device is simple in structure and operation method, and is beneficial to realizing accurate seamless and stress-free butt joint between the connecting pipeline flange of the weighing tank body and the process pipeline flange, so that the measurement accuracy of natural gas is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, 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 top view of a mobile docking unit provided in an embodiment of the present invention;
FIG. 2 is a top view of the mobile docking unit with the first support mechanism positioned above the second support mechanism according to the embodiment of the present invention;
FIG. 3 is a front view of a second support mechanism provided by an embodiment of the present invention;
fig. 4 is a plan view of a second support mechanism provided in the embodiment of the present invention.
Wherein the reference numerals denote:
1-a first supporting mechanism, 101-a limiting groove,
2-a transmission mechanism, 201-a slide rail,
3-a second supporting mechanism, 301-a supporting platform, 3011-a cambered groove, 302-a sphere,
4-a second drive mechanism.
Detailed Description
Unless defined otherwise, all technical terms used in the examples of the present invention have the same meaning as commonly understood by one of ordinary skill in the art.
In the embodiments of the present invention, reference to the "first end" and the "second end" refers to the opposite ends.
The weighing tank body of the natural gas flow primary standard device is provided with a connecting pipeline flange which can be connected with a process pipeline flange so as to enable natural gas in the process pipeline to be filled into the weighing tank body. The natural gas flow can be calculated by weighing the natural gas in the measuring tank body and combining the aeration time.
When the connecting pipeline flange and the process pipeline flange can not be in seamless and stress-free butt joint, the filling of natural gas into the weighing tank body is influenced, and further the flow of the natural gas can not be accurately measured. To this end, the embodiment of the invention provides a mobile docking device and a method for a natural gas flow primary standard device.
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In one aspect, an embodiment of the present invention provides a mobile docking device for a primary standard device of a natural gas flow rate, as shown in fig. 1, fig. 2, and fig. 3, the mobile docking device including: a first supporting mechanism 1, a transmission mechanism 2, a second supporting mechanism 3, a first driving mechanism (not shown), a second driving mechanism 4. The first supporting mechanism 1 and the second supporting mechanism 3 are respectively arranged at the first end and the second end of the transmission mechanism 2, and the second end of the transmission mechanism 2 is positioned at the process pipeline flange. The first supporting mechanism 1 is used for bearing the weighing tank body, the first driving mechanism is used for driving the first supporting mechanism 1 and the weighing tank body to be transmitted to the upper portion of the second supporting mechanism 3 on the transmission mechanism 2, and the second supporting mechanism 3 is used for supporting the first supporting mechanism 1 and the weighing tank body. The second driving mechanism 4 is used for driving the second supporting mechanism 3 to move up and down and rotate.
The working principle of the mobile docking device for the primary standard natural gas flow device provided by the embodiment of the invention is described as follows:
when the weighing tank is inflated, the weighing tank body is fixed on the first support mechanism 1, and the first support mechanism 1 and the weighing tank body are conveyed to the position above the second support mechanism 3 on the conveying mechanism 2 through the first driving mechanism. The second support mechanism 3 is driven to ascend by the second drive mechanism 4 to support the first support mechanism 1 and the weighing tank body. The second supporting mechanism 3 is driven by the second driving mechanism 4 to move up and down and rotate, so that the connecting pipeline flange on the weighing tank body is in butt joint with the process pipeline flange, and the weighing tank body is convenient to fill natural gas.
The second supporting mechanism 3 is driven by the second driving mechanism 4 to move up and down and rotate, so that the connecting pipeline flange on the weighing tank body is separated from the process pipeline flange. The second supporting mechanism 3 is driven to descend by the second driving mechanism 4, the first supporting mechanism 2 is driven by the first driving mechanism, and the weighing tank body is transmitted to the first end of the transmission mechanism 2 on the transmission mechanism 2 so as to weigh natural gas in the weighing tank body.
According to the mobile butt joint device for the natural gas flow primary standard device, the first supporting mechanism 1 and the weighing tank body are driven by the first driving mechanism to be transmitted from the first end of the transmission mechanism 2 to the second end of the transmission mechanism 2, the second driving mechanism 4 drives the second supporting mechanism 3 to ascend so as to support the first supporting mechanism 1 and the weighing tank body, and then the second supporting mechanism 3 is driven by the second driving mechanism 4 to move up and down and rotate so as to enable a connecting pipeline flange on the weighing tank body to be in seamless and stress-free butt joint with a process pipeline flange accurately. After the gas is filled, the second supporting mechanism 3 is driven to descend by the second driving mechanism 4, the first supporting mechanism 1 and the weighing tank body are transmitted to the first end of the transmission mechanism 2 through the first driving mechanism, namely the weighing end of the natural gas flow primary standard device, natural gas in the weighing tank body is weighed, and then the natural gas flow is determined. The movable butt joint device is simple in structure and operation method, and is beneficial to realizing accurate seamless and stress-free butt joint between the connecting pipeline flange of the weighing tank body and the process pipeline flange, so that the measurement accuracy of natural gas is improved.
The first support mechanism 1 may be provided in various configurations, for example, it may be provided in a platform configuration to facilitate the fixing of the weighing tank body to its top surface.
As an example, the first support mechanism 1 is a movable trolley. The arrangement is such that the first support mechanism 1 can move on the transmission mechanism 2 under the driving action of the second driving mechanism. The trolley can be provided with a motor for driving the trolley to move.
In view of being capable of easily controlling the moving speed and the start and stop of the weighing tank body, the mobile docking device provided by the embodiment of the invention further comprises: the device comprises a controller, a limit switch and a plurality of touch blocks. Wherein, limit switch sets up on first supporting mechanism 1, and partly touch piece sets up on transmission device 2 along the transmission direction interval, and remaining part touch piece sets up on second supporting mechanism 3, at first supporting mechanism 1 and weigh jar body transmission in-process, limit switch and touch piece and bump. The limit switch, the first driving mechanism and the second driving mechanism 4 are all electrically connected with the controller. The controller is configured to: when the limit switch touches the touch block, the controller controls the first driving mechanism to drive the first supporting mechanism 1 and the transmission speed of the weighing tank body on the transmission mechanism 2. The transmission speed of the first supporting mechanism 1 and the weighing tank body on the transmission mechanism 2 is 0.2 mm/s-10 cm/s.
It can be understood that the limit switch is arranged on the side wall of the first support mechanism 1, the touch block is arranged on the transmission mechanism 2 or the second support mechanism 3, and the limit switch and the touch block can collide with each other when the first support mechanism 1 and the weighing tank body pass through.
In addition, when limit switch and the touch piece that sets up on second supporting mechanism 3 touched, the controller can control first actuating mechanism stop work, controls second actuating mechanism 4 and begins work to make weigh jar body and reciprocate and rotate under the drive of second supporting mechanism 3, with seamless unstressed butt joint with process piping flange accurately, steadily, safely.
In the transmission process of the mobile docking device provided by the embodiment of the invention, the limit switch, the touch block, the controller, the second driving mechanism 4 and the first driving mechanism are matched with each other, so that the transmission speed of the weighing tank body can be controlled, and the start and stop of the second driving mechanism 4 and the first driving mechanism can be controlled, so that the position of the weighing tank body can be stably controlled.
In addition, inductive limit switches and inductive points may be used in place of limit switches and touch blocks.
The transmission mechanism 2 can be set in various forms, and on the premise of simple structure and convenient transmission, the following two examples are given:
as a first example, as shown in fig. 1, the transport mechanism 2 includes: the two sliding rails 201 are oppositely arranged, and the second supporting mechanism 3 is arranged between the two sliding rails 201; the bottom surface of the first supporting mechanism 1 is provided with two sliding chutes; the sliding groove is slidably sleeved on the sliding rail 201.
The sliding of the first support means 1 on the transport means 2 is achieved by sliding the sliding grooves on the sliding rails 201. When the first support mechanism 1 is transferred from the first end to the second end of the transfer mechanism 2, the second support mechanism 3 is controlled to ascend by the second drive mechanism 4, so that the first support mechanism 1 and the weighing tank body can be positioned on the second support mechanism 3, and the first support mechanism 1 and the weighing tank body are supported.
In view of the fact that the first support mechanism 1 can easily slide on the slide rail 201, a plurality of pulleys may be provided at intervals on the slide rail 201 in the sliding direction of the first support mechanism 1.
The above-described transfer mechanism 2 is simple in structure, and the sliding of the first support mechanism 1 on the transfer mechanism 2 can be easily achieved.
Further, considering that the first supporting mechanism 1 can easily slide on the transferring mechanism 2, the transferring mechanism 2 is gradually inclined downward from the first end to the second end thereof to facilitate the first supporting mechanism 1 to slide on the transferring mechanism 2 under its own weight.
As a second example, the transport mechanism 2 includes: the two conveying belts are oppositely arranged, and the tension roller is sleeved in the conveying belts; the second support mechanism 3 is disposed between the two conveyor belts.
It will be appreciated that the tension roller causes the belt to expand and drive the belt.
Through making first supporting mechanism 1 be located the conveyer belt, cooperation first actuating mechanism, the conveyer belt drives first supporting mechanism 1 and weighs a jar body and conveys, up to the top of second supporting mechanism 3. The second support mechanism 3 is driven to ascend by the second drive mechanism 4 to support the first support mechanism 1 and the weighing tank body.
As mentioned above, the second support mechanism 3 can move up and down and rotate under the driving action of the second driving mechanism 4. The second support mechanism 3 may be provided in various structures, and the following examples are given based on the simple structure and in consideration of the fact that the second support mechanism 3 can finely adjust the positions of the first support mechanism 1 and the weighing tank body located thereon:
as shown in fig. 3 and 4, the second support mechanism 3 includes: a support platform 301 and a plurality of spheres 302; the top surface of the supporting platform 301 is provided with a plurality of cambered grooves 3011, the bottom surface of the first supporting mechanism 1 is provided with a limiting groove 101, and the ball 302 can roll and be simultaneously positioned in the cambered grooves 3011 and the limiting groove 101.
When the second supporting mechanism 3 rotates under the driving action of the second driving mechanism 4, the force applied to the spherical ball 302 changes due to the gravity of the first supporting mechanism 1 and the weighing tank body, and the spherical ball 302 rolls to a proper position in the arc-shaped groove 3011. And because the bottom surface of the first supporting mechanism 1 is provided with the limiting groove 101, the position of the limiting groove 101 is adjusted along with the rolling of the round ball 302, and the fine adjustment of the first supporting mechanism 1 and the weighing tank body is further realized.
The round ball 302 is arranged, so that the first supporting mechanism 1 and the weighing tank body can rotate 0-360 degrees on the plane of the second supporting mechanism 3, and the smooth movement and butt joint are facilitated.
For example, the second supporting mechanism 3 includes at least three spherical balls 302 with equal diameters, and the three spherical balls 302 are arranged on the supporting platform 301 in a triangular arrangement. Correspondingly, the limiting groove 101 on the bottom surface of the first supporting mechanism 1 may be a triangular limiting groove 101 capable of accommodating three round balls 302, or may be a limiting groove 101 having the same structure as the cambered groove 3011.
Or, the supporting platform 301 is of a square structure, and four corners on the top surface of the supporting platform 301 are respectively provided with an arc groove 3011. Correspondingly, the limiting groove 101 on the bottom surface of the first supporting mechanism 1 may be a quadrilateral limiting groove 101 capable of accommodating four round balls 302, and may also be a limiting groove 101 having the same structure as the cambered groove 3011. When the weighing tank body is unbalanced, when the spatial position of the weighing tank body needs to be adjusted finely, the weighing tank body can be realized by adjusting the position of the round ball 302 in the cambered surface groove 3011.
As an example, the spherical ball 302 may be a rigid sphere.
The positions of the first supporting mechanism 1 and the weighing tank body are adjusted through the matching of the second driving mechanism 4 and the round ball 302, so that the connecting pipeline flange on the weighing tank body can be accurately butted with the process pipeline flange in a seamless and stress-free manner.
As an example, the depth of the cambered surface groove 3011 is 1/3-2/3 times the diameter of the round ball 302. For example, the depth of the cambered groove 3011 is 1/3 times, 1/2 times, 2/3 times, etc. the diameter of the spherical ball 302. The radian of the arc-surface groove 3011 may be 1 ° to 10 °, for example, 1 °, 2 °, 3 °, 4 °, 5 °, 6 °, 7 °, 8 °, 9 °, 10 °, and the like.
So set up, not only can make ball 302 break away from cambered surface recess 3011, can also accurately adjust the position of first supporting mechanism 1 and weighing tank body.
As mentioned above, the second driving mechanism 4 drives the second supporting mechanism 3 to move up and down and rotate. Among them, the second driving mechanism 4 may be provided in various forms, and on the premise of easy setting, the following two examples are given:
as a first example, the second drive mechanism 4 includes: the driving device comprises a first driving unit, a second driving unit and a third driving unit. Wherein the first driving unit is used for driving the second supporting mechanism 3 to move up and down. The second driving unit is used for driving the second supporting mechanism 3 to rotate along a first direction, and the first direction is as follows: the transport means 2 transport the direction of the first support means 1. The third driving unit is used for driving the second supporting mechanism 3 to rotate along a second direction, and the second direction is as follows: a direction perpendicular to the first direction.
The second supporting mechanism 3 can be driven to move up and down through the first driving unit, and the second supporting mechanism 3 can be driven to rotate along the front-back direction and the left-right direction through the matching effect of the second driving unit and the third driving unit.
As a second example, the second drive mechanism 4 includes: a plurality of fourth driving units for pulling up the second supporting mechanism 3; the fourth driving units are uniformly distributed at the lower end of the second supporting mechanism 3.
When the fourth driving units simultaneously push and pull the second supporting mechanism 3, the second supporting mechanism 3 is lifted. When one part of the fourth driving unit pushes the second supporting mechanism 3, and the rest part of the fourth driving unit pulls the second supporting mechanism 3, the second supporting mechanism 3 can be rotated. The second support mechanism 3 is lifted and rotated by the cooperation of the plurality of fourth driving units.
In the above two examples, the first driving unit, the second driving unit, the third driving unit and the fourth driving unit may be electric push rods, so as to be able to push and pull the second supporting mechanism 3. The first driving unit, the second driving unit, the third driving unit and the fourth driving unit can further comprise a top pull rod capable of realizing twisting and top pulling of the first supporting mechanism 1, so that the second supporting mechanism 3 can rotate in a horizontal plane for 360 degrees.
As an example, the second supporting mechanism 3 is a rectangular structure, and four corners of the lower end thereof are respectively provided with an electric push-pull rod. The rotation of the second supporting mechanism 3 can be realized by making the two opposite electric push-pull rods push against the second supporting mechanism 3 and making the remaining two electric push-pull rods pull the second supporting mechanism 3. The four electric push-pull rods are controlled to simultaneously push the second supporting mechanism 3, so that the second supporting mechanism 3 is lifted. The four electric push-pull rods are controlled to pull the second supporting mechanism 3 at the same time, so that the second supporting mechanism 3 descends.
As an example, the angle of rotation of the second support mechanism 3 in the vertical direction is 0 ° to 7.5 °, and may be, for example, 0 °, 1 °, 2 °, 3 °, 4 °, 5 °, 6 °, 7.5 °, and the like.
So set up, can avoid being located first supporting mechanism 1 on second supporting mechanism 3 and weigh the jar body when the slope, because self action of gravity breaks away from second supporting mechanism 3.
The first driving mechanism can be an electric push-pull rod, and the first supporting mechanism 1 can be pushed and pulled by the electric push-pull rod to move up and down the first supporting mechanism 1.
In the embodiment of the present invention, the second driving mechanism 4 and the first driving mechanism can also be realized by using a shaft, a gear mechanism and a motor to transmit force.
In another aspect, an embodiment of the present invention provides a mobile docking method for a primary standard device of a natural gas flow rate, including:
when the weighing tank is inflated, the weighing tank body is fixed on the first support mechanism 1, and the first support mechanism 1 and the weighing tank body are conveyed to the position above the second support mechanism 3 on the conveying mechanism 2 through the first driving mechanism.
The second support mechanism 3 is driven to ascend by the second drive mechanism 4 to support the first support mechanism 1 and the weighing tank body.
The second supporting mechanism 3 is driven by the second driving mechanism 4 to move up and down and rotate, so that the connecting pipeline flange on the weighing tank body is butted with the process pipeline flange, and the weighing tank body is filled with natural gas.
The butt joint method is simple, and the second support mechanism 3 is driven by the second driving mechanism 4 to move up and down and rotate, so that the seamless and stress-free butt joint of the connecting pipeline flange on the weighing tank body and the process pipeline flange can be accurately realized.
As an example, after filling natural gas into the weighing tank body, the second support mechanism 3 is driven by the second driving mechanism 4 to move up and down and rotate, so that the connecting pipeline flange is separated from the process pipeline flange.
The second driving mechanism 4 drives the second supporting mechanism 3 to descend, so that the first supporting mechanism 1 is separated from the second supporting mechanism 3 and is further positioned on the transmission mechanism 2.
The first end of the first supporting mechanism 1 and the weighing tank body are driven by the first driving mechanism to be transmitted to the transmission mechanism 2, so that natural gas in the weighing tank body is weighed, and the flow rate of the natural gas is further determined.
As an example, the mobile docking method provided in the embodiment of the present invention further includes:
the first supporting mechanism 1 is driven to move up and down through the first driving mechanism so as to place the first supporting mechanism 1 on the transmission mechanism 2 or the second supporting mechanism 3, or the first supporting mechanism 1 is separated from the transmission mechanism 2 or the second supporting mechanism 3.
So, the position of the first supporting mechanism 1 of control and weighing jar body that can be easy conveniently removes the butt joint operation.
In the embodiment of the invention, the transmission speed of the first supporting mechanism 1 and the weighing tank body on the transmission mechanism 2 is 0.2-10 cm/s through the cooperation of the controller, the limit switch, the plurality of touch blocks, the second driving mechanism 4 and the first driving mechanism, so that safe, stable and accurate butt joint is realized.
The above description is only an illustrative embodiment of the present invention, and should not be taken as limiting the scope of the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A mobile docking device for a primary standard natural gas flow system, said mobile docking device comprising: the device comprises a first supporting mechanism (1), a transmission mechanism (2), a second supporting mechanism (3), a first driving mechanism and a second driving mechanism (4);
the first supporting mechanism (1) and the second supporting mechanism (3) are respectively arranged at the first end and the second end of the transmission mechanism (2), and the second end of the transmission mechanism (2) is positioned at a process pipeline flange;
the first supporting mechanism (1) is used for bearing a weighing tank body, the first driving mechanism is used for driving the first supporting mechanism (1) and the weighing tank body to be conveyed to the position above the second supporting mechanism (3) on the conveying mechanism (2), and the second supporting mechanism (3) is used for supporting the first supporting mechanism (1) and the weighing tank body;
the second driving mechanism (4) is used for driving the second supporting mechanism (3) to move up and down and rotate;
the second support mechanism (3) comprises: a support platform (301) and a plurality of spheres (302);
a plurality of cambered surface grooves (3011) are formed in the top surface of the supporting platform (301), a limiting groove (101) is formed in the bottom surface of the first supporting mechanism (1), and the round ball (302) can be simultaneously positioned in the cambered surface grooves (3011) and the limiting groove (101) in a rolling manner;
the number of the round balls (302) is at least three, and at least three round balls (302) are rigid spheres;
the mobile docking device further includes: the device comprises a controller, a limit switch and a plurality of touch blocks;
the limit switch is arranged on the first supporting mechanism (1), one part of the touch blocks are arranged on the transmission mechanism (2) at intervals along the transmission direction, the rest part of the touch blocks are arranged on the second supporting mechanism (3), and the limit switch and the touch blocks are in contact with each other in the transmission process of the first supporting mechanism (1) and the weighing tank body;
the limit switch, the first driving mechanism and the second driving mechanism (4) are electrically connected with the controller;
the controller is configured to: when the limit switch touches the touch block, the controller controls the first driving mechanism to drive the first supporting mechanism (1) and the transmission speed of the weighing tank body on the transmission mechanism (2);
the conveying speed of the first supporting mechanism (1) and the weighing tank body on the conveying mechanism (2) is 0.2 mm/s-10 cm/s.
2. The mobile docking device according to claim 1, characterized in that the transport mechanism (2) comprises: the two sliding rails (201) are oppositely arranged, and the second supporting mechanism (3) is arranged between the two sliding rails (201);
the bottom surface of the first supporting mechanism (1) is provided with two sliding grooves;
the sliding groove is slidably sleeved on the sliding rail (201).
3. The mobile docking device according to claim 1, characterized in that the transport mechanism (2) comprises: the device comprises two oppositely arranged conveyor belts and tension rollers sleeved in the conveyor belts;
the second supporting mechanism (3) is arranged between the two conveyor belts.
4. The mobile docking device as claimed in claim 3, wherein the depth of the cambered groove (3011) is 1/3-2/3 times the diameter of the spherical ball (302).
5. The mobile docking device according to claim 1, characterized in that the second driving mechanism (4) comprises: the driving device comprises a first driving unit, a second driving unit and a third driving unit;
the first driving unit is used for driving the second supporting mechanism (3) to move up and down;
the second driving unit is used for driving the second supporting mechanism (3) to rotate along a first direction, and the first direction is as follows: the transmission mechanism (2) transmits the direction of the first supporting mechanism (1);
the third driving unit is used for driving the second supporting mechanism (3) to rotate along a second direction, and the second direction is as follows: a direction perpendicular to the first direction.
6. The mobile docking device according to claim 1, characterized in that the second driving mechanism (4) comprises: a plurality of fourth drive units for pulling up the second support mechanism (3);
the fourth driving units are uniformly distributed at the lower end of the second supporting mechanism (3).
7. A mobile docking method for a primary standard natural gas flow system, the mobile docking device as claimed in any one of claims 1 to 6, wherein the mobile docking method comprises:
during inflation, the weighing tank body is fixed on a first supporting mechanism (1), and the first supporting mechanism (1) and the weighing tank body are conveyed to the upper part of a second supporting mechanism (3) on a conveying mechanism (2) through a first driving mechanism;
the second supporting mechanism (3) is driven to ascend through a second driving mechanism (4) so as to support the first supporting mechanism (1) and the weighing tank body;
the second supporting mechanism (3) is driven by the second driving mechanism (4) to move up and down and rotate, so that the connecting pipeline flange on the weighing tank body is butted with the process pipeline flange.
8. The mobile docking method of claim 7, further comprising:
the first supporting mechanism (1) is driven to move up and down through a first driving mechanism, so that the first supporting mechanism (1) is placed on the transmission mechanism (2) or the second supporting mechanism (3), or the first supporting mechanism (1) is separated from the transmission mechanism (2) or the second supporting mechanism (3).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810971660.2A CN110857750B (en) | 2018-08-23 | 2018-08-23 | Movable docking device and method for primary standard device of natural gas flow |
| FR1904200A FR3080449B1 (en) | 2018-04-23 | 2019-04-19 | PRIMARY PROCESS AND INSTALLATION IN MASS-TIME OF NATURAL GAS FLOW MEASUREMENT |
| RU2019112156A RU2712935C1 (en) | 2018-04-23 | 2019-04-22 | Primary plant and method for measuring parameters of mass-time of natural gas flow |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810971660.2A CN110857750B (en) | 2018-08-23 | 2018-08-23 | Movable docking device and method for primary standard device of natural gas flow |
Publications (2)
| Publication Number | Publication Date |
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| CN110857750A CN110857750A (en) | 2020-03-03 |
| CN110857750B true CN110857750B (en) | 2021-08-31 |
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| CN201810971660.2A Active CN110857750B (en) | 2018-04-23 | 2018-08-23 | Movable docking device and method for primary standard device of natural gas flow |
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| CN110857750A (en) | 2020-03-03 |
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