CN219142350U

CN219142350U - Spherical tank airtight sampler

Info

Publication number: CN219142350U
Application number: CN202223449321.9U
Authority: CN
Inventors: 尹烁彭
Original assignee: Dalian Fujia Dahua Petrochemical Co Ltd
Current assignee: Dalian Fujia Dahua Petrochemical Co Ltd
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-06-06
Anticipated expiration: 2032-12-23

Abstract

The utility model provides a spherical tank closed sampler, which comprises: the device comprises a spherical tank, a sampler, a nitrogen pipeline and a float assembly, wherein a sampling port is formed in the bottom of the spherical tank; the sampler with sampling port intercommunication is passed through to the sampling pipeline, the nitrogen gas pipeline with sampling pipeline intercommunication, the float subassembly includes: the lower end of the guide pipe is fixed on the spherical tank, and the upper end of the guide pipe is provided with a liquid inlet; and a sealing float floatably disposed in the guide tube. The oil product in the spherical tank can be extracted through the guide pipe, and the extracted sample has higher accuracy and representativeness than the existing process.

Description

Spherical tank airtight sampler

Technical Field

The utility model relates to the technical field of chemical industry, in particular to a spherical tank closed sampler.

Background

Because of the requirement of chemical safety production, the sampling port of the spherical tank sampler is generally arranged on the inlet pipeline of the spherical tank, and the sampling technology cannot effectively represent the actual sample composition in the spherical tank.

We are now in urgent need for a novel spherical tank airtight sampler capable of sampling the inside of the spherical tank.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a spherical tank airtight sampler which has high sampling accuracy.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a spherical tank seal sampler comprising: the bottom of the spherical tank is provided with a sampling port;

the sampler is communicated with the sampling port through a sampling pipeline;

a nitrogen line in communication with the sampling line; and

float subassembly, set up in the spherical tank, with sampling port intercommunication, the float subassembly includes: the lower end of the guide pipe is fixed on the spherical tank, and the upper end of the guide pipe is provided with a liquid inlet; and

and the sealing floater is floatably arranged in the guide pipe.

Further, the sealing floater comprises an upper floater, a lower floater, a connecting column fixedly arranged between the upper floater and the lower floater and a sealing sleeve sleeved on the outer side of the connecting column in a clearance mode, and the sealing sleeve is in sliding sealing fit with the guide tube.

Further, at least one first vent hole is formed in the upper floater, and at least one second vent hole is formed in the lower floater, wherein the aperture of the second vent hole is larger than that of the first vent hole.

Further, the diameters of the upper floater and the lower floater are both larger than the inner diameter of the sealing sleeve, a first outwards convex cambered surface is arranged on one side of the upper floater, which faces the lower floater, and a second outwards convex cambered surface is arranged on one side of the lower floater, which faces the upper floater.

Further, a limiting piece for limiting the sealing sleeve is arranged on the inner side of the lower portion of the guide tube.

Further, a supporting piece for limiting the lower floater is arranged on the spherical tank and is positioned in the guide pipe.

Further, a top cover is arranged at the upper end of the guide tube, and a liquid inlet of the guide tube is formed in the side wall of the upper end of the guide tube.

Further, the bottom of the spherical tank is connected with a spherical tank receiving and paying pipeline.

Further, the length of the guide tube is greater than the radius of the spherical tank.

Further, the sampler is a closed sampler, a first valve is arranged on the sampling pipe, and the connection point of the nitrogen pipeline and the sampling pipeline is located at the upstream of the first valve.

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

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic view of the structure of the float assembly of the present utility model floating up to the upper end of the guide tube;

FIG. 3 is a schematic view of the structure of the float assembly at the lower end of the guide tube according to the embodiment of the present utility model;

FIG. 4 is a schematic view showing a downward movement of the float assembly according to the embodiment of the present utility model.

In the figure: 1. spherical tank, 2, sampler, 3, nitrogen pipeline, 4, sampling pipeline, 5, first valve, 6, the stand pipe, 7, the feed liquor hole, 8, upper float, 9, lower float, 10, spliced pole, 11, seal cover, 12, first air vent, 13, second air vent, 14, first outer convex cambered surface, 15, second outer convex cambered surface, 16, locating part, 17, support piece. 18. And (5) collecting and paying pipelines of the spherical tank.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Example 1

As shown in fig. 1 to 3, the spherical tank 1 encloses a sampler 2, comprising: a spherical tank 1, a sampler 2, a nitrogen line 3 and a float assembly. The spherical tank 1 is used for storing oil products, and a sampling port and a spherical tank material collecting and paying pipeline 18 are respectively arranged at the bottom of the spherical tank 1. The sampler 2 is communicated with a sampling port through a sampling pipeline 4, and a first valve 5 is arranged on the sampling pipeline 4; the nitrogen line 3 communicates with the sampling line 4, wherein the connection point of the nitrogen line 3 to the sampling line 4 is located upstream of the first valve 5. The nitrogen pipeline is provided with a second control valve. Preferably, the sampler 2 of the present embodiment is a hermetic sampler 2.

The float subassembly sets up in spherical tank 1, with sampling port intercommunication, the float subassembly includes: the guide tube 6 and sealed float, the lower extreme of guide tube 6 is fixed in spherical tank 1, and guide tube 6 upper end is provided with the top cap, and the upper end of guide tube 6 is provided with feed liquor hole 7, and the feed liquor hole 7 of this embodiment forms in guide tube 6 upper end lateral wall. The sealing float is floatably arranged in the guide tube 6 along the length direction of the guide tube 6. The density of the sealing float in this embodiment is greater than the density of the oil in the spherical tank 1.

Specifically, the sealing floater comprises an upper floater 8, a lower floater 9, a connecting column 10 fixedly arranged between the upper floater 8 and the lower floater 9, and a sealing sleeve 11 sleeved outside the connecting column 10 in a clearance way, wherein the sealing sleeve 11 is in sliding sealing fit with the guide tube 6.

Two first vent holes 12 are symmetrically arranged on the upper floater 8 of the embodiment, and two second vent holes 13 are symmetrically arranged on the lower floater 9, wherein the aperture of the second vent holes 13 is larger than that of the first vent holes 12.

The diameters of the upper floater 8 and the lower floater 9 of the embodiment are larger than the inner diameter of the sealing sleeve 11, a first outwards convex cambered surface 14 is arranged on one side of the upper floater 8 facing the lower floater 9, and a second outwards convex cambered surface 15 is arranged on one side of the lower floater 9 facing the upper floater 8. When the float assembly floats upwards, the second outwards convex cambered surface 15 on the lower float 9 is sealed at the lower port of the sealing sleeve 11, and when the float assembly descends, the first outwards convex cambered surface 14 on the upper float 8 is sealed at the upper port of the sealing sleeve 11.

In order to facilitate oil extraction, a limiting piece 16 for limiting the sealing sleeve 11 is fixedly arranged on the inner side wall of the lower part of the guide tube 6, a supporting piece 17 for limiting the lower floater 9 is arranged on the spherical tank 1, and the supporting piece 17 is positioned in the guide tube 6. When oil is extracted, the sealing sleeve 11 is positioned at the limiting piece 16, the lower floater 9 is positioned at the supporting piece 17, a gap exists between the upper floater 8 and the upper port of the sealing sleeve 11, and a gap also exists between the lower floater 9 and the lower port of the sealing sleeve 11.

In order to improve the accuracy of the sampling, the length of the guide tube 6 of the present embodiment is larger than the radius of the spherical tank 1. The diameter of the lower float 9 is smaller than the inner diameter of the stopper 16. The diameter of the upper float 8 is adapted to the inner diameter of the guide tube 6.

When the spherical tank 1 needs to be sampled, an operator is firstly connected with the airtight sampler 2, the first valve 5 is closed, then medium-pressure nitrogen (the nitrogen pressure is higher than the pressure of the spherical tank 1) is introduced into the sampler through a nitrogen line, the sealing floater in the guide pipe 6 is pushed to be above the guide pipe 6 by the medium-pressure nitrogen, namely, the lower floater 9 is pushed to move by the nitrogen line, the lower floater 9 is sealed at the lower port of the sealing sleeve 11 after moving, then the lower floater 9 drives the sealing sleeve 11 to move towards the upper end of the guide pipe 6 together, in the process of floating upwards, oil products in the guide pipe 6 are discharged from the liquid inlet 7 at the upper end of the guide pipe 6,

after the sealed float reaches the top of the guide tube 6, oil enters the cavity between the connecting column 10 and the sealing sleeve 11 through the liquid inlet 7, medium-pressure nitrogen is discharged to the torch, the upper float 8 moves downwards and is sealed at the upper port of the sealing sleeve 11, the first valve is opened, along with the nitrogen discharge, the sealed float moves downwards and sucks the oil in the spherical tank 1 into the guide tube 6 through the liquid inlet 7 of the guide tube 6, after the sealed float reaches the bottom, the lower float 9 touches the supporting piece 17, the sealing sleeve 11 is abutted against the limiting piece 16, at the moment, the sealed float is in a semi-open state (namely, a gap is reserved between the upper float 8 and the upper port of the sealing sleeve 11, and a gap is reserved between the lower float 9 and the lower port of the sealing sleeve 11), and the oil above the upper float 8 can be conveyed into the sampler 2 of the spherical tank 1 through the sealed float in the semi-open state, so that the sampled sample is more representative.

Compared with the prior art, the embodiment has the beneficial effects that:

the sealed sampler 2 of the spherical tank 1 of the embodiment is matched with the sealing floater through the nitrogen pipeline 3 to extract oil products in the spherical tank 1, so that the extracted samples are more representative and accurate, and the quality of daily production can be effectively judged.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or be integrated; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

In the description of the present utility model, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

While embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. The utility model provides a closed sampler of spherical tank which characterized in that: comprising the following steps: the bottom of the spherical tank is provided with a sampling port;

the sampler is communicated with the sampling port through a sampling pipeline;

a nitrogen line in communication with the sampling line; and

and the sealing floater is floatably arranged in the guide pipe.

2. The spherical tank seal sampler of claim 1, wherein: the sealing floater comprises an upper floater, a lower floater, a connecting column fixedly arranged between the upper floater and the lower floater and a sealing sleeve sleeved on the outer side of the connecting column in a clearance mode, and the sealing sleeve is in sliding sealing fit with the guide tube.

3. The spherical tank airtight sampler according to claim 2, characterized in that: the upper floater is provided with at least one first vent hole, and the lower floater is provided with at least one second vent hole, wherein the aperture of the second vent hole is larger than that of the first vent hole.

4. The spherical tank airtight sampler according to claim 2, characterized in that: the diameter of the upper floater and the diameter of the lower floater are both larger than the inner diameter of the sealing sleeve, a first outwards convex cambered surface is arranged on one side of the upper floater, which faces the lower floater, and a second outwards convex cambered surface is arranged on one side of the lower floater, which faces the upper floater.

5. The spherical tank airtight sampler according to claim 2, characterized in that: and a limiting part for limiting the sealing sleeve is arranged on the inner side of the lower part of the guide tube.

6. The spherical tank airtight sampler according to claim 2, characterized in that: the ball tank is provided with a supporting piece for limiting the lower floater, and the supporting piece is positioned in the guide pipe.

7. The spherical tank seal sampler of claim 1, wherein: the upper end of the guide pipe is provided with a top cover, and the liquid inlet of the guide pipe is formed in the side wall of the upper end of the guide pipe.

8. A spherical tank seal sampler according to any one of claims 1 to 7 and characterized in that: the length of the guide pipe is larger than the radius of the spherical tank.

9. A spherical tank seal sampler according to any one of claims 1 to 7 and characterized in that: the sampler is a closed sampler, a first valve is arranged on the sampling pipe, and the connection point of the nitrogen pipeline and the sampling pipeline is positioned at the upstream of the first valve.