CN221846497U - Gas pipeline powder cleaning device - Google Patents

Abstract

The utility model discloses a gas pipeline powder cleaning device, which comprises a shell, wherein the top of the shell is provided with an air inlet joint; the sewage outlet is arranged at the bottom of the shell; the filter element is arranged in the shell, and the air inlet joint is communicated with a hollow pipe extending into the filter element; the exhaust holes are formed in the peripheral wall of the hollow pipe and are distributed along the length direction of the hollow pipe; the external compressed gas is led out from the exhaust hole after entering the hollow pipe through the air inlet joint, and accumulated ash attached to the filter element is blown away. Because the filter element does not need to be disassembled, the filter element cannot be exposed in an external illumination environment, and potential safety hazards are eliminated.

Description

Gas pipeline powder cleaning device

Technical Field

The utility model belongs to the technical field of gas pipeline maintenance, and in particular relates to a gas pipeline powder cleaning device.

Background Art

The black powder in the natural gas pipeline is mainly composed of condensation, corrosion and some other impurities on the inner wall of the pipeline. As the natural gas flows in the pipeline, the moisture and impurities on the inner wall of the pipeline are taken away, and finally form black powder. These dusts are fixed on the inner wall of the pipeline and will continue to fall to the bottom of the pipeline with the change of airflow and temperature.

The presence of black powder will affect the quality of natural gas and the safe operation of the pipeline. First, the black powder that accumulates on the inner wall of the pipeline will hinder the flow of natural gas, causing the gas flow rate to drop, the pipeline to become blocked, and the resistance of the pipeline to increase. Secondly, the black powder also contains some substances that are harmful to natural gas, such as rust and iron oxide. These substances will react chemically with natural gas, reduce the quality of natural gas, and affect the user experience. If the powder is not filtered, the powder will directly accumulate on the back-end equipment, causing damage to the equipment, especially the transmission and distribution stations.

The general treatment method is to install a filter between two adjacent gas pipelines, but due to the structure of the filter, it has many parts and screws, which is not convenient for subsequent maintenance and disassembly and transportation. After the filter has been used for a long time, the accumulated powder will cause the filter to be blocked, forming a large differential pressure, affecting the gas flow rate and the normal guarantee of gas supply. Therefore, when the pressure difference before and after the filter reaches more than 10 kPa, the filter needs to be cleaned or swept to reduce the impact of the powder.

This cleaning method requires removing all screws on the filter, taking out the filter element inside, and cleaning and flushing the filter element. The process is seriously affected by the size of the equipment, is time-consuming and labor-intensive, and may require multiple people to complete. In addition, the gas pipeline may contain hydrogen sulfide gas, and the filter element may spontaneously combust if it is removed and exposed to direct sunlight.

Utility Model Content

In order to solve the above technical problems, the utility model uses compressed gas to be introduced into the interior of the filter element through a hollow tube. The high-pressure gas cleans the filter element from the inside to the outside, eliminating the trouble of disassembling the filter and avoiding the occurrence of safety hazards.

The utility model adopts the following technical solutions:

A gas pipeline powder cleaning device, comprising:

A housing having an air inlet connector on the top;

A sewage outlet is arranged at the bottom of the shell;

A filter element is placed in the housing, and an air inlet connector is connected to a hollow tube extending into the interior of the filter element;

A plurality of exhaust holes are provided on the peripheral wall of the hollow tube and arranged along the length direction of the hollow tube;

After the external compressed gas enters the hollow tube through the air inlet joint, it is discharged from the exhaust hole to blow away the dust attached to the filter element.

Furthermore, a first pipe and a second pipe are connected in parallel between the air inlet connector and the shell, the hollow tube is connected to the first pipe, and an air outlet end of the second pipe extends into the shell from the top.

Furthermore, a wind collecting hood is provided in the shell, and the wind collecting hood is located on the upper part of the filter element.

Further, at least one of the first pipeline and the second pipeline is provided with a first valve body.

Furthermore, a filter channel is provided in the shell, and a fixing rod is provided at one end of the hollow tube away from the air inlet joint, and the fixing rod is threadedly connected to the filter channel.

Furthermore, a second valve body is provided at the sewage outlet.

Furthermore, a third valve body is connected to both sides of the shell, and the gas pipelines located on both sides of the cleaning device are connected to the shell through the third valve body.

Furthermore, the third valve body is a gear valve.

Furthermore, an O-ring is embedded in the connection between the hollow tube and the first pipeline.

Furthermore, the first pipe end has a positioning bevel.

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

The cleaning device of the utility model uses compressed gas to clean the powder attached to the filter element from the inside to the outside, and discharges the powder from the device through the lower sewage outlet. The cleaning device does not need to disassemble the filter element during use, eliminating a lot of manual disassembly time. Since the filter element does not need to be disassembled, the filter element will not be exposed to the external light environment, eliminating safety hazards.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of an embodiment of the utility model;

The reference numerals in the drawings of the specification include:

Shell 1, wind collecting hood 10, sewage outlet 11, filter channel 12, filter element 2, hollow tube 3, fixing rod 30, exhaust hole 31, air inlet joint 4, first pipe 40, O-ring 400, positioning bevel 401, second pipe 41, first valve body 51, second valve body 52, third valve body 53, gas pipeline 6.

DETAILED DESCRIPTION

In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

Among them, the drawings are only used for exemplary explanations, and they only show schematic diagrams rather than actual drawings, and cannot be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted, and the same or similar reference numerals in the drawings of the embodiments of the utility model correspond to the same or similar parts; in the description of the utility model, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer" and the like appear, the directions or positional relationships indicated are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, so the terms describing the positional relationship in the drawings are only used for exemplary explanations, and cannot be understood as limitations on this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

As shown in FIG1 , a gas pipeline powder cleaning device of the utility model includes a housing 1, a filter element 2, a sewage outlet 11 and a hollow tube 3 therein:

The top of the housing 1 is provided with an air inlet connector 4;

The sewage outlet 11 is arranged at the bottom of the housing 1;

The filter element 2 is placed in the housing 1, and the air inlet connector 4 is connected to a hollow tube 3 extending into the interior of the filter element 2;

A plurality of exhaust holes 31 are formed on the peripheral wall of the hollow tube 3 and arranged along the length direction of the hollow tube 3;

After the external compressed gas enters the hollow tube 3 through the air inlet connector 4, it is led out from the exhaust hole 31 to blow away the dust attached to the filter element 2. This solution uses a pipe with compressed gas on the outside to cooperate with the air inlet connector 4 to guide the high-pressure gas into the housing 1, clean the powder attached to the filter element 2 from the inside to the outside, and discharge it from the device through the sewage outlet 11 at the bottom.

The cleaning device does not need to disassemble the filter element 2 during use, thus eliminating a large amount of manual disassembly time. Since the filter element 2 does not need to be disassembled, the filter element 2 will not be exposed to the external light environment, eliminating potential safety hazards.

The hollow tube 3 is coaxially arranged with the filter element 2, and the compressed gas entering the housing 1 is specifically introduced into the filter element 2. A plurality of exhaust holes 31 are arranged on the outer periphery of the hollow tube 3, so that the compressed gas can be blown out evenly and act on the filter element 2. The effective length of the hollow tube 3 is the length of the filter element 2. The hollow tube 3 is used to guide the air, so that the compressed air is blown out horizontally, and the powder attached to the filter element 2 is blown away, and the cleaning effect is better.

In addition, a first pipe 40 and a second pipe 41 are connected in parallel between the air inlet connector 4 and the shell 1 , and the hollow tube 3 is connected to the first pipe 40 , wherein the air outlet end of the second pipe 41 extends into the shell 1 from the top.

The compressed gas introduced by the air inlet connector 4 is divided into two pipes to enter the shell 1, wherein the first pipe 40 can, while satisfying the conduction to the hollow tube 3, the added second pipe 41 can independently blow part of the compressed gas from the shell 1 upward to the filter element 2, thereby increasing the gas flow direction for powder cleaning and allowing the powder cleaned by the filter element 2 to quickly fall into the drain port 11 at the bottom of the shell 1.

In order to avoid weakening the pressure of the airflow guided downward by the second pipe 41 , an air collecting cover 10 is arranged in the housing 1 , and the air collecting cover 10 is located on the upper part of the filter element 2 .

At least one of the first pipeline 40 and the second pipeline 41 is provided with a first valve body 51. The first valve body 51 is provided to facilitate the operator to select the flow direction of the compressed gas for targeted cleaning. The first valve body 51 can also be opened at the same time according to actual needs, and the compressed gas cleans the powder from both the horizontal and vertical directions. In addition, in order to prevent the gas from leaking from the first pipeline 40 or the second pipeline 41 during normal use of the gas pipeline, a valve body can be separately provided at the gas inlet joint.

In addition, the shell 1 has a filter channel 12, and a fixing rod 30 is provided at one end of the hollow tube 3 away from the air inlet connector 4. The fixing rod 30 is threadedly connected to the filter channel 12 to prevent the hollow tube 3 from shaking during cleaning, and the fixing rod 30 is used to fix it.

It should be noted that the filter channel is located at the bottom of the filter element. In daily use, the filtered gas flows out of the filter channel and enters the gas pipeline at the rear end. The bottom surface of the filter channel can be provided with a threaded hole, and the fixing rod 30 fixes the hollow tube 3 through the matching of the threaded hole.

A second valve body 52 is provided at the sewage outlet 11. When the powder in the shell 1 is to be discharged, the second valve body 52 is in a closed state. When the gas pipeline 6 is in normal use and does not need to be cleaned, the second valve body 52 is in an open state and the gas is transported normally.

The third valve bodies 53 are connected to both sides of the shell 1 , and the gas pipelines 6 located on both sides of the cleaning device are connected to the shell 1 through the third valve bodies 53 .

Before cleaning the device, relevant operations need to be done, such as closing the third valve bodies 53 on both sides of the shell 1 to block the gas passage and prevent the gas from pouring into the shell 1. The third valve body 53 is a gear valve.

In addition, the shell 1 has a cover plate on the top. If the filter element 2 is denatured after long-term use, the cover plate can be removed to replace the filter element 2. A positioning bevel 401 is provided at the end of the first pipe 40 to facilitate the alignment and connection between the first pipe 40 and the hollow tube 3.

In addition, an O-ring 400 is embedded in the connection between the hollow tube 3 and the first pipeline 40 to increase airtightness and prevent air leakage.

Claims (10)

1. A gas pipeline powder cleaning device, characterized in that it comprises: A housing (1) having an air inlet connector (4) at the top; A sewage outlet (11) is arranged at the bottom of the housing (1); A filter element (2) is placed in the housing (1), and an air inlet connector (4) is connected to a hollow tube (3) extending into the interior of the filter element (2); A plurality of exhaust holes (31) are formed on the peripheral wall of the hollow tube (3) and arranged along the length direction of the hollow tube (3); After the external compressed gas enters the hollow tube (3) through the air inlet joint (4), it is discharged from the exhaust hole (31) to blow away the dust deposited on the filter element (2). 2. The gas pipeline powder cleaning device as described in claim 1 is characterized in that a first pipeline (40) and a second pipeline (41) are connected in parallel between the air inlet joint (4) and the shell (1), the hollow tube (3) is connected to the first pipeline (40), and the air outlet end of the second pipeline (41) extends from the top of the shell. 3. The gas pipeline powder cleaning device according to claim 1 or 2, characterized in that: the shell (1) has an air collecting hood (10), and the air collecting hood (10) is located on the upper part of the filter element (2). 4. The gas pipeline powder cleaning device according to claim 2, characterized in that at least one of the first pipeline (40) and the second pipeline (41) is provided with a first valve body (51). 5. The gas pipeline powder cleaning device as described in claim 1 or 2 is characterized in that: a filter channel (12) is provided in the shell (1), and a fixing rod (30) is provided at one end of the hollow tube (3) away from the air inlet joint (4), and the fixing rod (30) is threadedly connected to the filter channel (12). 6. The gas pipeline powder cleaning device according to claim 1 or 2, characterized in that a second valve body (52) is provided at the sewage outlet (11). 7. The gas pipeline powder cleaning device as described in claim 1, 2 or 4 is characterized in that a third valve body (53) is connected to both sides of the shell (1), and the gas pipelines located on both sides of the cleaning device are connected to the shell (1) through the third valve body (53). 8. The gas pipeline powder cleaning device according to claim 7, characterized in that the third valve body (53) is a gear valve. 9. The gas pipeline powder cleaning device according to claim 2 or 4, characterized in that an O-ring (400) is embedded in the connection between the hollow tube (3) and the first pipeline (40). 10. The gas pipeline powder cleaning device according to claim 2 or 4, characterized in that the end of the first pipeline (40) has a positioning bevel (401).