CN215525171U

CN215525171U - Pipeline sampling device

Info

Publication number: CN215525171U
Application number: CN202121286416.6U
Authority: CN
Inventors: 董宇光
Original assignee: SICHUAN HAIDUN PETROLEUM NEW TECHNOLOGY DEVELOPMENT CO LTD
Current assignee: SICHUAN HAIDUN PETROLEUM NEW TECHNOLOGY DEVELOPMENT CO LTD
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2022-01-14
Anticipated expiration: 2031-06-09

Abstract

The utility model provides a pipeline sampling device, which relates to the technical field of petroleum. The utility model comprises a pipeline, a base is arranged on the pipeline, an inner pipe is fixed in the base, a pressure pipe and a sampling pipe are arranged on the inner pipe, and the base is slidably provided with a pressure pipe and a sampling pipe. The outer tube is coaxial with the inner tube, the bottom end of the outer tube is provided with a cover plate, the bottom surface of the base extends into the pipeline, the pressure tube is provided with a pressure gauge, and the sampling tube is provided with a sampling Valve, the outer tube is sleeved outside the inner tube, the upper section of the outer tube is a threaded section with an external thread, the lower section of the outer tube is a hole section with a number of through holes, and the base is rotated with a A worm wheel and a worm screw that mesh with each other, the worm wheel and the outer tube are coaxially arranged, and the inner wall of the worm wheel has an inner thread matched with the threaded section of the outer tube.

Description

Pipeline sampling device

Technical Field

The utility model relates to the technical field of petroleum, in particular to a pipeline sampling device.

Background

In order to monitor the composition and quality of a gas such as natural gas in a gas transmission pipeline, it is necessary to sample the gas transmitted in the gas transmission pipeline and perform detection and analysis.

At present, a gas sampling point on a gas transmission pipeline is generally positioned at the installation position of a pressure gauge on a high-pressure pipeline or the combined installation position of the pressure gauge and a pressure transmitter. When taking a sample to the gas in the pipeline, need earlier close the root valve of manometer and pipe connection department, dismantle the manometer down, be connected sample wafer valve and this root valve, then be connected the one end and the wafer valve of sample pipeline, the other end is connected with the sample container, then opens this root valve, carries out gas sampling. After the sampling is completed, the root valve is closed again, the sampling flat valve, the container and the sampling pipeline are taken down, and the pressure gauge is installed on the root valve again.

Therefore, when taking a sample to gas at present, need frequently dismantle the manometer, not only sampling efficiency is lower, probably causes manometer kneck gas leakage moreover, needs solve urgently.

Disclosure of Invention

The utility model aims to develop a pipeline sampling device which can perform sampling without disassembling a pressure gauge and improves the sampling efficiency.

The utility model is realized by the following technical scheme:

pipeline sampling device, including the pipeline, be equipped with the base on the pipeline, the base internal fixation is equipped with the inner tube, be equipped with on the inner tube rather than the pressure pipe and the sampling tube of intercommunication, it is equipped with the outer tube coaxial with the inner tube to slide in the base, the bottom of outer tube is equipped with the apron, the bottom surface of base stretches into in the pipeline, be equipped with the manometer on the pressure pipe, be equipped with the sample valve on the sampling tube, the outer tube cover is established in the inner tube outside, the upper segment of outer tube is for having the screw thread section of external screw thread, the hypomere of outer tube is for having the hole section of a plurality of through-holes, the base internal rotation is equipped with intermeshing's worm wheel and worm, worm wheel and the coaxial setting of outer tube, the worm wheel inner wall has the internal thread with the screw thread section complex of outer tube.

Optionally, the bottom surface of the base is a concave arc surface matched with the inner wall of the pipeline, and the axial direction of the base is perpendicular to the axial direction of the pipeline.

Optionally, the bottom surface of the cover plate is a concave arc surface matched with the inner wall of the pipeline.

Optionally, a pipe groove is formed in the base at the outer circumferential direction of the inner pipe, the pipe groove is cylindrical and is coaxial with the inner pipe, and the outer pipe is slidably arranged in the pipe groove.

Optionally, the top end of the pipe groove is located inside the base, and the bottom end of the pipe groove extends downwards to the bottom surface of the base.

Optionally, the inner wall of the outer pipe is in sliding contact with the outer wall of the inner pipe, and the outer wall of the outer pipe is in sliding contact with the inner wall of the pipe groove.

Optionally, the bottom surface of the base is provided with a cover groove matched with the cover plate.

Optionally, the top surface of the cover plate and the top surface of the cover groove are provided with mutually matched sealing gaskets.

Optionally, the outer end of the worm extends out of the base, and a hand wheel is arranged at the outer end of the worm.

The utility model has the beneficial effects that:

the sampling device can sample without disassembling the pressure gauge, the sampling efficiency is greatly improved, gas leakage caused by frequent disassembly and assembly at the interface of the pressure gauge is avoided, the outer pipe extends into the pipeline when sampling is performed, gas in the pipeline directly enters the inner pipe from the outer pipe and is output, impurities on the inner wall of the pipeline cannot enter the outer pipe, the cover plate is positioned in the cover groove when the outer pipe retracts into the base to be closed, the impurities and the like on the inner wall of the pipeline are attached to the bottom surface of the cover plate, the impurities cannot enter the base, and the sampled samples are prevented from containing impurities.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a view of the closure of the cover of the present invention;

fig. 2 is a view showing an open structure of the cover plate according to the present invention.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art can appreciate, the described embodiments may be modified in various different ways, without departing from the spirit or scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the present invention discloses a pipeline sampling device, comprising a pipeline 11, a base 1 is arranged on the pipeline 11, an inner pipe 2 is fixedly arranged in the base 1, a pressure pipe 12 and a sampling pipe 13 which are communicated with the inner pipe 2 are arranged on the inner pipe 2, an outer tube 3 which is coaxial with the inner tube 2 is arranged in the base 1 in a sliding way, a cover plate 5 is arranged at the bottom end of the outer tube 3, the bottom surface of the base 1 extends into the pipeline 11, the pressure pipe 12 is provided with a pressure gauge 15, a sampling valve 14 is arranged on the sampling tube 13, the outer tube 3 is sleeved outside the inner tube 2, the upper section of the outer tube 3 is a threaded section with external threads, the lower section of the outer pipe 3 is a hole section with a plurality of through holes, a worm wheel 6 and a worm 7 which are meshed with each other are rotationally arranged in the base 1, the worm wheel 6 and the outer tube 3 are coaxially arranged, and the inner wall of the worm wheel 6 is provided with an internal thread matched with the thread section of the outer tube 3.

In an embodiment of the present application, a base 1 is fixedly arranged on the pipeline 11, the base 1 is cylindrical, the bottom surface of the base 1 extends into the pipeline 11, the bottom surface of the base 1 is a concave arc surface matched with the inner wall of the pipeline 11, and the axial direction of the base 1 is perpendicular to the axial direction of the pipeline 11.

The base 1 internal fixation is equipped with the inner tube 2, and inner tube 2 sets up with base 1 is coaxial, and outside base 1 was stretched out on the 2 tops of inner tube, the lower part in the base 1 was stretched into to the 2 bottoms of inner tube.

The top of inner tube 2 is equipped with manometer pipe 12 and sampling tube 13, and manometer 15 is equipped with sample valve 14 on manometer pipe 12 top.

Still be equipped with tube seat 10 in the base 1, tube seat 10 is cylindrical groove, and tube seat 10 sets up with inner tube 2 is coaxial to tube seat 10 locates inner tube 2 outer circumference. The top of tube seat 10 is located inside base 1, and the vertical downwardly extending of tube seat 10 bottom reaches base 1 bottom surface, and tube seat 10 bottom is the open structure with outside intercommunication.

But be equipped with vertical gliding outer tube 3 in the chase 10, the outer tube 3 cover is established on the outer wall of inner tube 2, the inner wall of outer tube 3 and the outer wall sliding contact of inner tube 2, the outer wall of outer tube 3 and the inner wall sliding contact of chase 10. The outer pipe 3 can be vertically lifted along the axial direction in the pipe groove 10, and the bottom end of the outer pipe 3 can extend downwards out of the base 1 into the pipeline 11.

The upper section of the outer tube 3 is a threaded section, and the threaded section is provided with an external thread. Correspond the position rotation in the base 1 and be equipped with the screw thread section complex worm wheel 6 with outer tube 3, worm wheel 6 and the coaxial setting of outer tube 3, the inner wall of worm wheel 6 be equipped with outer tube 3 screw thread section complex internal thread, worm wheel 6 rotates, the screw thread of the 6 inner walls of worm wheel and the screw thread section cooperation of outer tube 3, make outer tube 3 go up and down.

A worm 7 meshed with the worm wheel 6 and in transmission connection is further rotatably arranged at a corresponding position in the base 1, the worm 7 is horizontally arranged, the outer end portion of the worm 7 extends out of the base 1, a hand wheel 8 is arranged at the outer end portion of the worm 7, the hand wheel 8 and the worm 7 are coaxially arranged, the worm 7 is rotated by rotating the hand wheel 8 to drive the worm wheel 6 to rotate, and the worm wheel 6 drives the outer pipe 3 to lift.

The hypomere of outer tube 3 is the hole section, and the hole section has a plurality of through-holes, and on the outer tube 3 was covered with to the through-hole, the through-hole ran through the pipe wall of outer tube 3.

The bottom of outer tube 3 is equipped with apron 5, and apron 5 is the circular slab to apron 5 also corresponds and carries out indent processing, makes 5 bottom surfaces of apron also be with 11 inner walls of pipeline complex concave arc face, and apron 5 sets up with outer tube 3 coaxial line. A cover groove 4 matched with the cover plate 5 is arranged at the corresponding position of the bottom surface of the base 1, and the cover groove 4 is a circular groove which is in the coaxial position with the cover plate 5. When the outer tube 3 is raised to the top, the cover plate 5 slides into the cover groove 4. The top surface of the cover groove 4 and the top surface of the cover plate 5 are both provided with a layer of sealing gasket 9 which is matched with each other, the cover plate 5 slides into the cover groove 4, and the sealing gasket 9 at the top of the cover plate 5 is matched with the sealing gasket 9 at the top of the cover groove 4 to realize sealing.

When not taking a sample, the sampling valve 14 is closed, when the pressure gauge 15 works, the hand wheel 8 is rotated to enable the outer pipe 3 to descend to the bottommost part, the hole section of the outer pipe 3 completely extends out of the pipe groove 10 to enter the pipeline 11, gas in the pipeline 11 passes through the outer pipe 3 through the hole section to enter the inner pipe 2 and enter the pressure pipe 12, and the pressure gauge 15 can work. When sampling is needed, the sampling valve 14 is opened, the hand wheel 8 is rotated to adjust the descending degree of the outer pipe 3, the more the descending length of the outer pipe 3 is, the longer the length of the hole section extending out of the pipe groove 10 is, the more through holes are arranged outside the pipe groove 10, and accordingly, the larger the gas flow entering the outer pipe 3 is, and the gas flow is adjusted. When pressure measurement and sampling are not needed, the hand wheel 8 is rotated, the worm 7 rotates to drive the worm wheel 6 to rotate, the worm wheel 6 rotates to drive the outer pipe 3 to ascend, the outer pipe 3 ascends in the pipe groove 10 to the topmost part, and the cover plate 5 is located in the cover groove 4 and realizes sealing.

According to the utility model, sampling can be carried out without disassembling the pressure gauge 15, the sampling efficiency is greatly improved, gas leakage caused by frequent disassembly and assembly at the interface of the pressure gauge 15 is avoided, when sampling is carried out, the outer pipe 3 extends into the pipeline 11, gas in the pipeline 11 directly enters the inner pipe 2 from the outer pipe 3 and is output, impurities on the inner wall of the pipeline 11 cannot enter the outer pipe 3, and when the outer pipe 3 retracts into the base 1 to be closed, the cover plate 5 is positioned in the cover groove 4, so that the impurities on the inner wall of the pipeline 11 are attached to the bottom surface of the cover plate 5, and the impurities cannot enter the base 1, and the sampled samples are prevented from containing impurities.

The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the technical solutions of the present invention, so long as the technical solutions can be realized on the basis of the above embodiments without creative efforts, which should be considered to fall within the protection scope of the patent of the present invention.

Claims

1. A pipeline sampling device, characterized in that it comprises:

pipeline;

a base, arranged on the pipeline;

an inner tube, fixed in the base;

a pressure pipe, communicated with the inner pipe;

a sampling tube, communicated with the inner tube;

The outer tube is slidably arranged in the base and is coaxial with the inner tube;

a cover plate, located at the bottom end of the outer tube;

The bottom surface of the base extends into the pipe, the pressure pipe is provided with a pressure gauge, the sampling pipe is provided with a sampling valve, the outer pipe is sleeved outside the inner pipe, and the upper section of the outer pipe is provided with a pressure gauge. It is a threaded section with an external thread, the lower section of the outer tube is a hole section with a number of through holes, a worm wheel and a worm screw that mesh with each other are rotated in the base, the worm wheel and the outer tube are coaxially arranged, and the The inner wall of the worm gear has internal threads that cooperate with the threaded segments of the outer tube.

2 . The pipeline sampling device according to claim 1 , wherein the bottom surface of the base is a concave arc surface adapted to the inner wall of the pipeline, and the axial direction of the base is perpendicular to the axial direction of the pipeline. 3 .

3 . The pipeline sampling device according to claim 1 , wherein the bottom surface of the cover plate is a concave arc surface matched with the inner wall of the pipeline. 4 .

4 . The pipeline sampling device according to claim 1 , wherein a pipe groove is provided in the outer circumferential base of the inner pipe, and the pipe groove is cylindrical and coaxial with the inner pipe. The outer tube is slidably arranged in the tube groove.

5 . The pipeline sampling device according to claim 4 , wherein the top end of the pipe groove is located inside the base, and the bottom end of the pipe groove extends downward to the bottom surface of the base. 6 .

6 . The pipeline sampling device according to claim 5 , wherein the inner wall of the outer tube is in sliding contact with the outer wall of the inner tube, and the outer wall of the outer tube is in sliding contact with the inner wall of the tube groove. 7 .

7 . The pipeline sampling device according to claim 1 , wherein the bottom surface of the base is provided with a cover groove matched with the cover plate. 8 .

8 . The pipeline sampling device according to claim 7 , wherein the top surface of the cover plate and the top surface of the cover groove are provided with mutually matched sealing gaskets. 9 .

9 . The pipeline sampling device according to claim 1 , wherein the outer end of the worm protrudes out of the base, and the outer end of the worm is provided with a hand wheel. 10 .