CN214007143U

CN214007143U - Unpowered self-flowing type sample gas filtering instrument

Info

Publication number: CN214007143U
Application number: CN202022398435.XU
Authority: CN
Inventors: 王海燕; 李娜; 王冬雷
Original assignee: Shenyang Yihai Jiaxing Electronic Technology Co ltd
Current assignee: Shenyang Yihai Jiaxing Electronic Technology Co ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-08-20
Anticipated expiration: 2030-10-26

Abstract

The utility model discloses an appearance is filtered to unpowered self-flowing sample gas. The utility model discloses an appearance is filtered to unpowered gravity flow type sample gas, include: the sand discharge pipeline, the branch pipe, the valve, the air pipe, the box body, the nozzle, the flow distribution cap, the filter cylinder, the gas collecting hood, the gas collecting port and the air outlet; the filter cartridge is adopted to filter and separate particles in an air source, the shunt cap is designed to enable sample gas to be uniformly distributed around the filter cartridge, the filtered sample gas is concentrated together through the flow collecting device, and the filtered sample gas is uniformly conveyed to the detection device together through the backflow pipe. The whole design sample gas completely depends on self-flow, the sample gas is ensured to be continuously filtered, the filtered standard sample gas continuously flows into the sensor to be automatically and continuously monitored in real time, and the technical support is provided for the scientific construction of safe drilling on the basis of accurately reflecting the condition of the underground rock stratum.

Description

Unpowered self-flowing type sample gas filtering instrument

Technical Field

The utility model relates to an industrial gas filters technical field, concretely relates to appearance is filtered to unpowered self-flowing sample gas.

Background

Air drilling is a new drilling process using gas instead of drilling fluid and has been widely used in recent years. When air drilling is adopted, logging is needed to collect, analyze and record gas and other well bottom return products in the drilling process in real time, so that a logging geological profile is established, and oil gas display is found and is used as a basis for evaluating an oil gas layer. The sample gas used in the analysis process is required to be free of any impurities, and the accurate chemical component analysis result can be obtained only by using the original sample gas as much as possible, so that the drilling construction personnel can be used as a technical basis for guiding the next construction. And providing information service for the next drilling.

When air is used for drilling, the traditional drilling fluid logging method cannot be used because the fluid medium is changed into a gas state. At present, no standard logging sample gas purification product is available in the market, the products of the eight categories cannot adapt to the sample gas quality required by different areas and different environment bodies, and when the gas returning from the kilometer underground is filtered, the particles in the raw gas are not simply filtered, but the following two difficulties need to be noticed: firstly, other gases can not be mixed into the sample gas absolutely so as to avoid adding other chemical components; air can not be added in the sampling process, because the added air can dilute the concentration of chemical components in the original air; and thirdly, only a physical mode can be adopted, because any chemical processing mode can change chemical components in the original gas, so that the test data deviates from the original gas sample.

The existing air drilling logging sample gas collecting device has the following defects: most of the existing gas purification devices use induced draft fans, and the induced draft fans suck raw gas and then purify the gas, and then convey the gas to pipelines for chemical examination and analysis. In the suction process of the induced draft fan, a large amount of air is inevitably sucked, so that the content of the raw gas is diluted, the chemical composition is changed, and the test result is inaccurate; in order to improve the filtering effect, the existing gas purification device usually adopts a composite process, and a physical and chemical sharing mode is adopted in the treatment process. Such as adding active carbon adsorption, photolysis oxidation and other deep purification methods. The inherent chemical properties in the raw gas are invisibly changed, the chemical components are reduced, and the inspection result is inaccurate; part of rock debris and dust still remain in sample gas purified by using a gas purification mode, and solid matters are easy to fill the membrane surface of the sensor, so that the detection precision is reduced; the sample gas still contains partial moisture, and water molecules can cause corrosion and pollution of the sensor, so that the service life of the sensor is influenced; at present, on-site sampling is manual brake opening sampling, sampled gas is discontinuous and discontinuous, the coincidence rate with the rock debris profile of an air drilling section is low, and the quality of the sampled gas cannot meet the requirement of real-time detection.

In conclusion, it is another object of petroleum engineering technicians to develop a novel air drilling sample gas purification device, develop a sample gas filtration device in the air drilling process, and invent a sample gas capable of ensuring the original components.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the aforesaid not enough, in order to overcome prior art's defect, through having carried out intensive research to current air drilling sampling device, provided a unpowered from inhaling formula sample gas appearance of taking a sample, can satisfy the demand that does not have the external gas entering, can't change former gas composition.

The utility model provides an appearance is filtered to unpowered self-flowing sample gas, include: the sand discharge pipeline, the branch pipe, the valve, the air pipe, the box body, the nozzle, the flow distribution cap, the filter cylinder, the gas collecting hood, the gas collecting port and the air outlet;

the sand discharge pipeline, the branch pipe and the valve are positioned outside the box body, one end of the branch pipe is communicated with the side wall of the sand discharge pipeline, the valve is arranged at the other end of the branch pipe, the valve is communicated with one end of the air pipe, and the other end of the air pipe extends into the box body; a nozzle is arranged at the top of the other end of the air pipe, a flow distribution cap is connected above the nozzle, the flow distribution cap is in a hollow inverted cone-shaped structure, and a filter cylinder is arranged above the flow distribution cap; the gas collecting hood is arranged at the top of the filter cylinder, the gas collecting port is communicated with the top of the gas collecting hood, and the tail end of the gas collecting port is connected with a gas outlet;

the top edge of the shunting cap is provided with an arc-shaped outward turning structure, the arc-shaped outward turning structure is provided with a plurality of shunting holes, the shunting holes are circularly and uniformly distributed by taking the axis of the shunting cap as the center, and the shunting holes are communicated with the inside of the shunting cap; the circular arc-shaped outward-turning structure is provided with a plurality of shunting grooves which are uniformly distributed in a circular shape by taking the axis of the shunting cap as the center, and one ends of the shunting grooves are communicated with the inside of the shunting cap; the shunting holes and the end part of the shunting groove are positioned on the outer side of the filter cylinder, and the outer wall of the gas collecting hood is positioned above the inner side of the filter cylinder.

Further, the shunt cap and the filter cylinder are connected through a connecting bolt.

Furthermore, the included angle between the axis of the shunting hole and the outer wall of the shunting cap is 15 degrees.

Furthermore, the top end of the gas collection port extends out of the top of the box body.

Furthermore, the gas collecting channel is conical, and the diameter of the gas collecting channel is gradually increased from top to bottom.

The utility model discloses following beneficial effect has: the utility model provides a pair of appearance is filtered to unpowered gravity flow type sample gas adopts and strains a section of thick bamboo and carry out filtering separation to the granule in the air supply, divides the cap through the design, makes sample gas evenly distributed to strain a section of thick bamboo all around, makes the sample gas after filtering concentrate together through the mass flow device, carries detection device together through the refluence pipe is unified. The whole design sample gas completely depends on self-flow, the sample gas is ensured to be continuously filtered, the filtered standard sample gas continuously flows into the sensor to be automatically and continuously monitored in real time, and the technical support is provided for the scientific construction of safe drilling on the basis of accurately reflecting the condition of the underground rock stratum.

Drawings

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

Fig. 1 is the structure schematic diagram of the unpowered self-flowing sample gas filtering instrument provided by the utility model.

Fig. 2 is the utility model provides a flow distribution cap schematic diagram of unpowered gravity flow type sample gas filtration appearance.

Illustration of the drawings: 1-a sand discharge pipeline; 2-branch pipe; 3-a valve; 4-trachea; 5-a box body; 6-a nozzle; 7-a shunt cap; 8-a splitter box; 9-a shunt hole; 10-a filter cartridge; 11-a gas-collecting hood; 12-a gas collection port; 13-air outlet; 14-connecting bolts; 70-arc outward turning structure.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, the thicknesses of layers and regions are exaggerated for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.

As shown in fig. 1 and 2, the embodiment of the utility model provides an unpowered gravity flow type sample gas filter, include: the device comprises a sand discharge pipeline 1, a branch pipe 2, a valve 3, an air pipe 4, a box body 5, a nozzle 6, a flow distribution cap 7, a filter cylinder 10, a gas collecting hood 11, a gas collecting port 12 and a gas outlet 13.

Wherein, arrange sand pipeline 1, branch pipe 2 and valve 3 and be located the outside of box 5, arrange sand pipeline 1 and be used for letting in sample gas source. One end of the branch pipe 2 is communicated with the side wall of the sand discharge pipeline 1, the other end of the branch pipe 2 is provided with a valve 3, the valve 3 is communicated with one end of the air pipe 4, and the other end of the air pipe 4 extends into the box body 5.

A nozzle 6 is arranged at the top of the other end of the air pipe 4, a flow distribution cap 7 is connected above the nozzle 6, the flow distribution cap 7 is of a hollow inverted cone structure, and a filter cartridge 10 is arranged above the flow distribution cap 7. The gas-collecting hood 11 is arranged on the top of the filter cartridge 10, the gas-collecting hood 11 is conical, and the diameter of the gas-collecting hood 11 is gradually increased from top to bottom. The gas collecting port 12 is communicated with the top of the gas collecting hood 11, the tail end of the gas collecting port 12 is connected with a gas outlet 13, and the top end of the gas collecting port 12 extends out of the top of the box body 5.

Specifically, the top edge of the shunting cap 7 is provided with an arc-shaped outward-turning structure 70, the arc-shaped outward-turning structure 70 is provided with a plurality of shunting holes 9, the shunting holes 9 are circularly and uniformly distributed by taking the axis of the shunting cap 7 as the center, and the shunting holes 9 are communicated with the inside of the shunting cap 7.

Specifically, a plurality of shunting grooves 8 are arranged on the arc-shaped outward-turning structure 70, the shunting grooves 8 are circularly and uniformly distributed by taking the axis of the shunting cap 7 as the center, and one ends of the shunting grooves 8 are communicated with the inside of the shunting cap 7; the shunting holes 9 and the ends of the shunting grooves 8 are positioned on the outer side of the filter cylinder 10, and the outer wall of the gas collecting hood 11 is positioned above the inner side of the filter cylinder 10. The diverter cap 7 and the filter cartridge 10 can be connected by connecting bolts 14.

In this embodiment, the angle between the axis of the diversion hole 9 and the outer wall of the diversion cap 7 is 15 degrees.

The utility model discloses a working principle of appearance is filtered to unpowered gravity flow type appearance is as follows:

the gas source of the sample gas is from a drilling sand discharge pipeline 1, the gas of the sand discharge pipeline 1 is from a downhole drill bit part, when a drill bit cuts an underground section, the gas is used for pushing rock debris to the ground, so that the gas has enough pressure, one part of logging work is to filter solid particles in the gas, and effective components are left for logging test analysis, so that different chemical components and contents in the sample gas are detected, and the subsequent operation instruction of the drilling work is provided for technicians. The solid particles contained in the gas are dust mainly comprising rock, and belong to heterogeneous mixtures. Separating the material containing the heterogeneous mixture. In the scheme, the unpowered self-flowing type sample gas filtering instrument achieves unpowered self-flowing type filtering by adopting a mode of reducing pressure loss in the filtering process, passing through the shape of parts and passing through fluid according to the sample gas pressure of the sand discharge pipeline 1 of 0.4-0.7 MPa. If the filter is sealed, the filter can automatically flow by utilizing the pressure, and unpowered filtration is realized.

A sample gas source is connected into a branch pipe 2 from a sand discharge pipeline 1, a valve 3 is opened, sample gas enters a gas pipe 4, after dust-containing gas flows into a box body 5 through the gas pipe 4, a part of coarse dust particles in the gas flow enter a shunting cap 7, the shunting cap 7 is designed in an inverted umbrella shape, and shunting holes 9 are formed in the edge of the shunting cap. A part of coarse dust particles in the airflow are blocked by the diverter cap 7, large particles are directly settled down under the action of gravity and inertia force, and a part of the airflow passes through the diverter cap 7 and then flows upwards to the surface of the filter cartridge 10 along the diverter groove 8. One part passes through the diverter holes 9 directly to the surface of the filter cartridge 10. On the surface of the filter cylinder 10, dust is blocked on the surface of the filter cylinder 10 through comprehensive effects of Brownian diffusion, screening and the like, gas is purified after penetrating through the filter cylinder 10 and upwards reaches the gas collecting hood 11 in the filter cylinder 10, the gas collecting hood 11 is in a regular umbrella shape, the middle of the gas collecting hood is provided with a gas collecting port 12, the treated gas is collected by the gas collecting port 12 and uniformly enters the gas outlet 13 and then enters the sample gas analysis device, and the whole purification process of the sample gas is completed.

The utility model discloses an unpowered self-priming sample gas appearance that draws sample does not use any power in the whole purification process, does not adopt any chemical method, relies on the pressure motion of the former gas of sand discharge pipeline completely, is strained the gas and promotes the march. The whole filtering device is closed, has no leakage point, ensures that gas does not have pressure drop and flows through the filtering device automatically and smoothly. The influence of external gas inflow on the detection precision is avoided.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A no-power self-flowing sample gas filter, comprising: the sand discharge device comprises a sand discharge pipeline (1), branch pipes (2), valves (3), air pipes (4), a box body (5), nozzles (6), a flow distribution cap (7), a filter cylinder (10), a gas collection cover (11), a gas collection port (12) and an air outlet (13);

the sand discharge pipeline (1), the branch pipe (2) and the valve (3) are positioned outside the box body (5), one end of the branch pipe (2) is communicated with the side wall of the sand discharge pipeline (1), the valve (3) is arranged at the other end of the branch pipe (2), the valve (3) is communicated with one end of the air pipe (4), and the other end of the air pipe (4) extends into the box body (5); a nozzle (6) is arranged at the top of the other end of the air pipe (4), a shunting cap (7) is connected above the nozzle (6), the shunting cap (7) is of a hollow inverted cone-shaped structure, and a filter cartridge (10) is arranged above the shunting cap (7); the gas collecting hood (11) is arranged at the top of the filter cylinder (10), the gas collecting port (12) is communicated with the top of the gas collecting hood (11), and the tail end of the gas collecting port (12) is connected with a gas outlet (13);

the top edge of the shunting cap (7) is provided with an arc-shaped outward turning structure (70), the arc-shaped outward turning structure (70) is provided with a plurality of shunting holes (9), the shunting holes (9) are circularly and uniformly distributed by taking the axis of the shunting cap (7) as the center, and the shunting holes (9) are communicated with the inside of the shunting cap (7); a plurality of shunting grooves (8) are arranged on the arc-shaped outward-turning structure (70), the shunting grooves (8) are circularly and uniformly distributed by taking the axis of the shunting cap (7) as the center, and one ends of the shunting grooves (8) are communicated with the inside of the shunting cap (7); the end parts of the shunting holes (9) and the shunting grooves (8) are positioned on the outer side of the filter cylinder (10), and the outer wall of the gas collecting hood (11) is positioned above the inner side of the filter cylinder (10).

2. A non-powered gravity flow sample gas filtration instrument according to claim 1, wherein the diverter cap (7) and the filter cartridge (10) are connected by a connecting bolt (14).

3. The unpowered self-flowing sample gas filtering instrument according to claim 2, wherein an included angle between the axis of the shunting hole (9) and the outer wall of the shunting cap (7) is 15 degrees.

4. A non-powered gravity flow sample gas filtration apparatus according to claim 3 wherein the top end of the gas collection port (12) extends above the top of the housing (5).

5. The unpowered self-flowing sample gas filtering instrument according to claim 4, wherein the gas collecting hood (11) is conical, and the diameter of the gas collecting hood (11) is gradually increased from top to bottom.