CN209764174U - Gas continuous metering device - Google Patents
Gas continuous metering device Download PDFInfo
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- CN209764174U CN209764174U CN201920495682.6U CN201920495682U CN209764174U CN 209764174 U CN209764174 U CN 209764174U CN 201920495682 U CN201920495682 U CN 201920495682U CN 209764174 U CN209764174 U CN 209764174U
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Abstract
The utility model relates to a gaseous continuous metering device, its characterized in that: comprises at least one pair of metering units which are connected in parallel; the input end of the metering unit is connected with an automatic switching valve through a pipeline; the metering unit comprises a transparent cylinder, a lining, an upper plug, a pressing cap, a supporting shell, a worm and gear pair, a screw nut pair and a supporting shell end cover; the automatic switching valve sets gas metering to be in an air inlet state, the valve is opened to control exhaust speed according to the gas amount of a sample, the driving motor drives the worm gear to rotate through the worm gear and the worm gear to drive the screw rod nut pair to rotate, stable gas pressure in the metering unit is ensured properly according to the moving speed of the piston, when the piston is displaced to the proximity switch, the metering unit is fully metered, the metering unit is switched to another metering chamber to carry out gas metering through the automatic switching valve, the metered metering chamber exhausts gas and waits for the next metering after the exhaust is completed, and continuous alternate continuous gas metering of the metering chamber is realized.
Description
Technical Field
The utility model relates to a gaseous measurement field especially relates to a gaseous continuous metering device.
Background
The existing situation shows that gas metering is the most common device in an oil field development experiment, and a large amount of gas needs to be accurately and continuously metered in the oil field development experiment process; the continuous metering device of a general experiment provides reliable data support for field gas metering, and because the measurement error of the gas metering is large, the continuous measurement effect is poor, and the provided data is lack of reliability, a high-precision gas metering device with good continuous measurement effect is needed to solve the problem.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a gaseous measurement precision, gaseous continuous metering device that the measurement continuity is good.
In order to solve the technical problem, the utility model adopts the technical scheme that: the utility model provides a gaseous continuous metering device which innovation point lies in: comprises at least one pair of metering units which are connected in parallel; the input end of the metering unit is connected with an automatic switching valve through a pipeline;
The metering unit comprises a transparent cylinder, a lining, an upper plug, a pressing cap, a supporting shell, a worm and gear pair, a screw nut pair and a supporting shell end cover;
The two ends of the transparent cylinder are communicated and arranged on the supporting shell, an exhaust port and a piston limiting pin are respectively arranged on the bottom end of the side edge of the transparent cylinder and are perpendicular to the axis direction of the transparent cylinder, a piston is arranged in the transparent cylinder, and an L-shaped air passage which can be communicated with the exhaust port on the side edge of the transparent cylinder is arranged on the piston; the upper plug is arranged at the upper end of the transparent cylinder through a pressing cap, and an air inlet connected with the automatic switching valve is formed in the upper plug; the lining is arranged on the outer wall of the transparent cylinder in a surrounding manner and is connected with the supporting shell;
The worm gear and worm pair and the feed screw nut pair are both arranged in the support shell, the end cover of the support shell is arranged on the lower end face of the support shell, the worm gear of the worm gear and the nut of the feed screw nut pair are coaxially arranged, and the nut of the feed screw nut pair is fixedly positioned in the support shell through a rotary bearing; the worm of the worm-gear worm pair is driven by the motor to drive the worm wheel to rotate; and a screw rod and a nut of the screw rod and nut pair are coaxially arranged, and one end of the screw rod extends into the transparent cylinder body and is connected with the piston.
furthermore, a pressure sensor is arranged on the piston and is driven by a signal processor and a driving motor of the worm-and-gear pair to realize data intercommunication, and the driving motor of the worm-and-gear pair controls the motion of the screw-nut pair through signals of the pressure sensor.
Furthermore, a proximity switch triggered by the piston is arranged on the piston limit pin.
The utility model has the advantages that:
1) The gas continuous metering device in the utility model consists of a worm gear transmission part, a gas transparent metering chamber and an automatic switching valve part; the automatic switching valve sets gas metering to be in an air inlet state, the valve is opened to control exhaust speed according to the gas amount of a sample, the driving motor drives the worm gear to rotate through the worm gear and the worm gear to drive the screw rod nut pair to rotate, stable gas pressure in the metering unit is ensured properly according to the moving speed of the piston, when the piston is displaced to the proximity switch, the metering unit is fully metered, the metering unit is switched to another metering chamber to carry out gas metering through the automatic switching valve, the metered metering chamber exhausts gas and waits for the next metering after the exhaust is completed, and continuous alternate continuous gas metering of the metering chamber is realized.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of a gas continuous metering device of the present invention.
Detailed Description
The following examples are presented to enable those skilled in the art to more fully understand the present invention and are not intended to limit the scope of the present invention.
The continuous gas metering device shown in FIG. 1 comprises at least one pair of metering units, wherein the metering units 1 are connected in parallel; the input end of the metering unit 1 is connected with an automatic switching valve 2 through a pipeline.
The metering unit 1 comprises a transparent cylinder 11, a bushing 12, an upper plug 13, a pressing cap 14, a support shell 15, a worm-and-gear pair 16, a feed screw nut pair 17 and a support shell end cover 18.
The two ends of the transparent cylinder 11 are communicated and arranged on the supporting shell 15, the bottom end of the side edge of the transparent cylinder 11 is respectively provided with an exhaust port 19 and a piston limit pin 10 which are perpendicular to the axial direction of the transparent cylinder 11, the transparent cylinder 11 is internally provided with a piston 3, and the piston 3 is provided with an L-shaped air passage which can be communicated with the exhaust port of the side edge of the transparent cylinder 11; the upper plug 13 is arranged at the upper end of the transparent cylinder body 11 through a pressing cap 14, and an air inlet connected with the automatic switching valve 2 is formed in the upper plug 13; the bushing 12 is circumferentially disposed on the outer wall of the transparent cylinder 11 and connected to the support housing 15.
The worm gear pair 16 and the feed screw nut pair 17 are both arranged in the support shell 15, the end cover of the support shell 15 is arranged on the lower end face of the support shell 15, the worm gear of the worm gear pair 16 and the nut of the feed screw nut pair 17 are coaxially arranged, and the nut of the feed screw nut pair is fixedly positioned in the support shell 15 through the slewing bearing 4; the worm of the worm-gear worm pair 16 is driven by a motor to drive the worm wheel to rotate; and a screw rod and a nut of the screw rod and nut pair 17 are coaxially arranged, and one end of the screw rod extends into the transparent cylinder 11 to be connected with the piston 3.
The piston 3 is provided with a pressure sensor which is driven by a signal processor and a driving motor of the worm-and-gear pair 16 to realize data intercommunication, and the driving motor of the worm-and-gear pair 16 controls the motion of the screw-nut pair 17 through the signal of the pressure sensor.
the piston limit pin 10 is provided with a proximity switch triggered by the piston 3.
the working principle is as follows: the automatic switching valve sets gas metering to be in an air inlet state, the valve is opened to control exhaust speed according to the amount of gas of a sample, a driving motor of a worm-and-gear pair drives a worm wheel to rotate through a worm gear and a worm, so that a screw nut pair is driven to rotate, the stable gas pressure in a metering unit is properly ensured at the moving speed of a piston, when the piston is displaced to a proximity switch, the metering unit is full of metering, the metering chamber is controlled and switched to another metering chamber to perform gas metering through the automatic switching valve, and the metered metering chamber exhausts gas and waits for the next metering after the exhaust is completed to realize continuous alternate continuous gas metering of the metering chamber.
It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. A gas continuous metering device is characterized in that: comprises at least one pair of metering units which are connected in parallel; the input end of the metering unit is connected with an automatic switching valve through a pipeline;
The metering unit comprises a transparent cylinder, a lining, an upper plug, a pressing cap, a supporting shell, a worm and gear pair, a screw nut pair and a supporting shell end cover;
The two ends of the transparent cylinder are communicated and arranged on the supporting shell, an exhaust port and a piston limiting pin are respectively arranged on the bottom end of the side edge of the transparent cylinder and are perpendicular to the axis direction of the transparent cylinder, a piston is arranged in the transparent cylinder, and an L-shaped air passage which can be communicated with the exhaust port on the side edge of the transparent cylinder is arranged on the piston; the upper plug is arranged at the upper end of the transparent cylinder through a pressing cap, and an air inlet connected with the automatic switching valve is formed in the upper plug; the lining is arranged on the outer wall of the transparent cylinder in a surrounding manner and is connected with the supporting shell;
the worm gear and worm pair and the feed screw nut pair are both arranged in the support shell, the end cover of the support shell is arranged on the lower end face of the support shell, the worm gear of the worm gear and the nut of the feed screw nut pair are coaxially arranged, and the nut of the feed screw nut pair is fixedly positioned in the support shell through a rotary bearing; the worm of the worm-gear worm pair is driven by the motor to drive the worm wheel to rotate; and a screw rod and a nut of the screw rod and nut pair are coaxially arranged, and one end of the screw rod extends into the transparent cylinder body and is connected with the piston.
2. A continuous gas meter as claimed in claim 1, wherein: the piston is provided with a pressure sensor, the sensor is driven by a signal processor and a driving motor of the worm-gear pair to realize data intercommunication, and the driving motor of the worm-gear pair controls the motion of the screw-nut pair through signals of the pressure sensor.
3. a continuous gas meter as claimed in claim 1, wherein: and a proximity switch triggered by the piston is arranged on the piston limit pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920495682.6U CN209764174U (en) | 2019-04-12 | 2019-04-12 | Gas continuous metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920495682.6U CN209764174U (en) | 2019-04-12 | 2019-04-12 | Gas continuous metering device |
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| Publication Number | Publication Date |
|---|---|
| CN209764174U true CN209764174U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920495682.6U Active CN209764174U (en) | 2019-04-12 | 2019-04-12 | Gas continuous metering device |
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| CN (1) | CN209764174U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057418A (en) * | 2019-04-12 | 2019-07-26 | 海安华达石油仪器有限公司 | A kind of gas continuous metering device |
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2019
- 2019-04-12 CN CN201920495682.6U patent/CN209764174U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057418A (en) * | 2019-04-12 | 2019-07-26 | 海安华达石油仪器有限公司 | A kind of gas continuous metering device |
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