CN111530180A

CN111530180A - Natural gas filter

Info

Publication number: CN111530180A
Application number: CN202010425722.7A
Authority: CN
Inventors: 佟勇华
Original assignee: Hangzhou Xinhua Information Technology Co ltd
Current assignee: Hangzhou Xinhua Information Technology Co ltd
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2020-08-14
Also published as: JP2021181079A; JP6799774B1

Abstract

The invention discloses a natural gas filter, which comprises an air inlet pipe fitting, wherein the air inlet pipe fitting is arranged in an L shape, and natural gas containing impurities enters through the pipe fitting; and the blow-down structure is used for blowing gas out of the filter element from inside to outside to blow off solid impurities attached to the outer wall of the filter element, and simultaneously blowing out the solid impurities from the bottom of the air inlet pipe fitting. The invention blows the solid impurities adhered on the outer wall of the filter element to float by sending air to the filter element, and the solid impurities on the outer wall of the filter element can be blown out occasionally and effectively in the process, so that the smoothness of the filter hole is kept, the time for taking out the filter element for cleaning is prolonged, the working procedure required by cleaning is saved, and the filtering effect of the filter element on natural gas can be improved.

Description

Natural gas filter

Technical Field

The invention belongs to the technical field of gas filters, and particularly relates to a natural gas filter.

Background

The natural gas is used as a new energy dye, the main component of the natural gas is methane, and the natural gas also contains a small amount of ethane, propane and butane, the dye can be generated into carbon dioxide and water after combustion, but the natural gas contains a small amount of solid impurities and water, so that the natural gas is required to be filtered in the process of conveying the natural gas so as to filter the impurities in the natural gas, so that the combustion efficiency of the natural gas is improved, and the blockage or damage of the device caused by the solid impurities entering a combustion device is avoided.

When the natural gas is filtered by the filtering device, a large amount of solid impurities are accumulated on the outer wall of the filter element, so that the filter element needs to be taken out after being used for a period of time, then the filter element is cleaned or replaced, and the cover body on the upper part needs to be opened when the filter element is taken out, and then the filter element can be taken out, so that the process is complex in operation, time-consuming and labor-consuming; when the filter element is taken out, a small amount of impurities on the outer wall still drop to the air outlet pipe fitting from the filter element due to factors such as vibration and the like, and the dropped impurities move to equipment such as a pressure regulating valve and the like along with the reinput natural gas at a later stage, so that the pressure regulating valve is damaged; chinese patent CN104289045B discloses an anti-clogging natural gas filter, which intercepts dust by arranging a dust intercepting device, and although it has a good dustproof effect, in the actual use process, because the dust has a small volume and a light weight, when taken out, a large amount of dust falls downwards, and it still can cause a small amount of dust to deposit in the air outlet pipe, and in the use process, it still can cause downstream equipment to be damaged, so that it still needs practical and effective equipment to be dustproof when being disassembled.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the natural gas filter which is simple in structure, can rapidly remove dust and is convenient to clean.

In order to achieve the purpose, the invention adopts the following technical scheme: a natural gas filter comprises

The gas inlet pipe fitting is arranged in an L shape, and natural gas containing impurities enters through the pipe fitting;

the filtered natural gas is conveyed out of the gas outlet pipe fitting;

the cover plate is detachably connected with the end part of the air inlet pipe fitting;

the filtering structure is used for filtering impurities in natural gas and comprises a filter element detachably connected with the gas outlet pipe fitting;

and the blow-down structure is used for blowing gas out of the filter element from inside to outside to blow off solid impurities attached to the outer wall of the filter element, and simultaneously blowing out the solid impurities from the bottom of the air inlet pipe fitting.

According to the invention, the air is sent to the filter element by arranging the pollution discharge structure, and the solid impurities adhered to the outer wall of the filter element can be blown to float under the condition of wind power, so that most of the solid impurities can fall into the bottom of the air inlet pipe fitting, and the solid impurities on the outer wall of the filter element can be blown out effectively, so that the smoothness of the filter hole is kept, the time for taking out the filter element for cleaning is prolonged, the procedures required by cleaning are saved, and the filtering effect of the filter element on natural gas can be improved; and take solid impurity out through the pipe fitting bottom of admitting air, the solid impurity suction that this process can effectually gather the pipe fitting bottom of admitting air keeps the pipe fitting bottom clean to realized need not to dismantle the enclosing cover and also can carry out effectual clearance to whole natural gas filter inside, its clearance mode is simple, need not the manual work and carries out manual clearance, improves the clean degree of the inside environment of whole natural gas filter.

Furthermore, the pollution discharge structure comprises a first branch pipe communicated with the air outlet pipe, a second branch pipe communicated with the air inlet pipe, and an air supply pipe used for blowing air into the first branch pipe, wherein the second branch pipe is sleeved on the first branch pipe; through setting up the air supply pipe fitting with to send into the air in the first branch pipe fitting, it can realize the effect of convection current recoil, has realized rewashing the impurity on the filter core to prolonged the cycle length that whole filter core used, and establish first branch pipe fitting with second branch pipe fitting cover, the first branch pipe fitting part of being convenient for is followed on one hand the lower part of the pipe fitting of giving vent to anger is worn out, and on the other hand accessible a part can be realized realizing shutoff, its convenient operation to first, second branch pipe fitting.

Furthermore, the sewage draining structure also comprises a first blocking component for blocking the first branch pipe fitting and a second blocking component for blocking the second branch pipe fitting, and the air supply pipe fitting is in sealing fit with the first blocking component; the first branch pipe fitting and the second branch pipe fitting are effectively plugged by arranging the first plugging part and the second plugging part, the plugging effect of the first plugging part and the second plugging part is improved, the natural gas is prevented from leaking, and the safety performance is high.

Furthermore, the second plugging part comprises a connecting piece detachably connected with the second branch pipe piece and a sealing ring sheet for plugging the connecting piece, and the sealing ring sheet is arranged on the connecting piece; through setting up the connecting piece can be convenient for with whole first shutoff part with the second branch pipe fitting links to each other, this connected mode is simple and convenient, but convenient to detach and installation, and set up the sealing ring piece and plug the connecting piece, it can effectively carry out the shutoff to the connecting piece, ensures the leakproofness of whole connecting piece, when needs the air current outwards to blow off, only needs upwards mention the sealing ring piece can realize that gas discharges from the connecting piece.

Furthermore, a first air outlet is formed in the connecting piece, and a first plugging column in sealing fit with the first air outlet is arranged on the sealing ring piece; the sealing ring sheet is provided with a second air outlet which is staggered with the first air outlet; the connecting piece is provided with a second plugging column for plugging the second air outlet; set up first, the second air outlet can be convenient for gaseous discharge from the connecting piece to impurity can be followed discharge in the middle of first, the second air outlet, guarantee the inside cleanliness nature of whole filter, and set up first, the second shutoff post is respectively to first, the shutoff is carried out to the second air outlet, and it has realized sealing up whole connecting piece lower part, should sealed effectual, has ensured the sealing performance of whole connecting piece to second branch pipe fitting, avoids the natural gas to discharge in the middle of the second branch pipe fitting.

Furthermore, a first magnetic part is arranged on the sealing ring sheet, and a second magnetic part which is matched with the first magnetic part to push the sealing ring sheet to move upwards is arranged on the air supply pipe fitting; it can be when the air supply pipe fitting inserts in the middle of extending the pipe fitting through first, second magnetism portion, and second magnetism portion is connected with first magnetism portion to the drive sealed ring piece upward movement to open first, second air outlet, be convenient for impurity discharge in the middle of first, the second air outlet, it has realized opening first, the second air outlet automatically.

Further, the first plugging part comprises an extension pipe fitting in sealing fit with the first branch pipe fitting, a piston piece in sealing fit with the inner wall of the extension pipe fitting, an elastic piece connected with the piston piece and a support connected with the piston piece, and the support is connected with the end part of the extension pipe fitting; extend the pipe fitting through setting up effectual stopping up of piston spare to when the natural gas enters into the pipe fitting of giving vent to anger in the middle of, avoid the natural gas to follow first branch pipe fitting in the middle of discharge, then can effectual guarantee piston spare automatic under the windless condition in the middle of the branch pipe spare stop up through setting up of elastic component moreover extend the pipe fitting.

Furthermore, a sealing boss with an end face obliquely arranged from top to bottom is arranged on the inner wall of the extension pipe fitting, and a sealing layer matched with the piston piece is bonded on the sealing boss; the sealing boss can effectively support the piston piece, and the sealing layer is arranged to improve the sealing performance between the piston piece and the sealing layer.

Furthermore, a clamping convex ring is arranged on the inner wall of the extension pipe fitting, a clamping concave ring matched with the clamping convex ring is arranged on the air supply pipe fitting, and a rubber layer is arranged on the clamping convex ring; set up and mutually support between joint bulge loop and the joint bulge loop, it can be fixed air supply pipe fitting, and the guarantee air supply pipe fitting can not drop downwards, and sets up the rubber layer and then improves the leakproofness between air supply pipe fitting and the joint bulge loop to gas in the middle of the air supply pipe fitting can all blow in the filter core and recoil.

Furthermore, a first spiral groove is formed in the inner wall of the air outlet pipe fitting, and a second spiral groove is formed in the air inlet pipe fitting; the first spiral concave part and the second spiral concave part are arranged, so that gas forms cyclone when entering and exiting the gas outlet pipe fitting and the gas inlet pipe fitting, the cyclone can effectively blow impurities on the inner walls of the gas inlet pipe fitting and the gas outlet pipe fitting, and the cleanliness between the inner walls of the pipe fittings is improved.

In conclusion, the filter element provided by the invention blows the solid impurities adhered to the outer wall of the filter element to float by sending air to the filter element, and the solid impurities on the outer wall of the filter element can be blown out effectively, so that the smoothness of the filter holes is kept, the time for taking out the filter element for cleaning is prolonged, the working procedures required for cleaning are saved, and the filtering effect of the filter element on natural gas can be improved.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is a cross-sectional view of an outlet fitting of the present invention.

Fig. 4 is a partial structural diagram of the first embodiment of the present invention.

Fig. 5 is a cross-sectional view of fig. 4.

Fig. 6 is a second structural schematic diagram of the present invention.

Fig. 7 is a schematic structural view of the connector of the present invention.

Fig. 8 is a schematic structural diagram of the sealing ring sheet of the present invention.

Fig. 9 is a schematic structural view of the air supply pipe fitting of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

As shown in fig. 1-9, a natural gas filter includes an air inlet pipe fitting 1, an air outlet pipe fitting 2, a cover plate 3, a filtering structure 4 and a pollution discharge structure 5, wherein the air inlet pipe fitting 1 is an L-shaped metal pipeline, unfiltered natural gas enters from the air inlet pipe fitting 1, a second spiral groove 11 is formed on the inner wall of the air inlet pipe fitting 1, and the second spiral groove 11 is a thread-shaped groove formed in the air inlet pipe fitting 1; the air outlet pipe fitting 3 is also a metal pipeline, the air outlet pipe fitting 2 is also an L-shaped metal pipeline, the bent part of the air outlet pipe fitting 2 and the bent part of the air inlet pipe fitting 1 are overlapped, a first spiral groove 21 is arranged on the inner wall of the air outlet pipe fitting 2, and the first spiral groove 21 is a threaded groove formed in the air outlet pipe fitting; the cover plate 3 is a metal plate, and the cover plate 3 is connected with the upper end part of the air inlet pipe fitting 1 through a bolt; the filtering structure 4 is used for filtering impurities in natural gas, the filtering structure 4 comprises a filter element 40, the filter element 40 is a filter element in an existing natural gas filter on the market, the filter element 40 is detachably connected with the end part of the gas outlet pipe fitting 2, and the filter element 40 is positioned in the gas inlet pipe fitting 1; after entering from the gas inlet pipe fitting 1, the natural gas passes through the filter element 40 and then is discharged from the gas outlet pipe fitting 2; the air inlet pipe fitting is provided with a second spiral groove

Further, the sewage discharging structure 5 is used for blowing gas towards the filter element 40 from inside to outside, thereby blowing off impurities adhered to the outer wall of the filter element 40, then the gas will be blown out along the inner wall of the air inlet pipe 1, the pollution discharging structure 5 includes a first branch pipe 51, a second branch pipe 52 and a blowing pipe 53, the first branch pipe 51 is a metal pipe, the first branch pipe 51 is communicated with the outlet pipe 2, the first branch pipe 51 extends out from the lower part of the inlet pipe 1, the second branch pipe 52 is also a metal pipeline, the second branch pipe member 52 is communicated with the lower part of the air inlet pipe member 1, and the pipe diameter of the second branch pipe member 52 is larger than that of the first branch pipe member 51, the second branch pipe 52 is sleeved on the first branch pipe 51, that is, the first branch pipe 51 and the second branch pipe 52 are concentrically arranged.

Specifically, the sewage draining structure 5 further comprises a first blocking component 61 and a second blocking component 62, the first blocking component 61 is used for blocking the first branch pipe 51, the second blocking component 62 is used for blocking the second branch pipe 52, the second blocking component 62 comprises a connecting piece 65 and a sealing ring sheet 66, the connecting piece 65 is a metal cover with a circular insertion opening at the middle part, a rubber sealing layer is arranged on the inner wall of the insertion opening, and the connecting piece 65 is in threaded connection with the outer wall of the second branch pipe 52; the sealing ring plate 66 is a metal ring plate with a circular opening in the middle, and the sealing ring plate 66 is mounted on the connecting piece 65.

Further, a plurality of first air outlets 651 are arranged on the connecting member 65, the inner walls of the first air outlets 651 are circular holes which are obliquely arranged from bottom to top, so that the first air outlets 651 form an upward flared shape, a plurality of first blocking columns 662 are arranged on the sealing ring sheet 66, the first blocking columns 662 are in an inverted circular truncated cone shape, a first sealing adhesive layer is bonded on the outer walls of the first blocking columns 662, the first sealing adhesive layer is a rubber layer, and the first blocking columns 662 can be inserted into the first air outlets 651; a plurality of second air outlets 661 are arranged on the sealing ring sheet 66, the second air outlets 661 are round openings with openings at two ends larger than the middle opening, and the shape of the second air outlets 661 is similar to the shape of an hourglass shell; the connecting piece 65 is provided with a second blocking column 652, the second blocking column 652 is a metal column in a circular truncated cone shape, the outer wall of the second blocking column 652 is provided with a second sealing adhesive layer, the second sealing adhesive layer is the same as a rubber layer, and the second blocking column 652 is in sealing fit with the inner wall of the second air outlet 661.

Further, the first blocking component 61 includes an extension pipe 671, a piston 672, an elastic member 673 and a bracket 674; the extension pipe 671 is a metal pipe, the lower end of the extension pipe 671 is connected to the connecting member 65, the lower end of the extension pipe 671 passes through the insertion opening, and the inner wall of the insertion opening of the outer wall of the extension pipe 671 is connected in a sealing manner; the sealing ring 66 is slipped onto the connecting piece 65.

Specifically, the seal ring piece 66 is provided with a first magnetic part 665, the first magnetic part 665 is a magnet of one circle inside the seal ring piece 66, the air supply pipe fitting 53 is provided with a second magnetic part 535, the second magnetic part 535 is a one-piece magnet provided on the air supply pipe fitting 53, when the air supply pipe fitting 53 is inserted into the extension pipe fitting 671, the second magnetic part 535 attracts the first magnetic part 665, so that the seal ring piece 66 can synchronously move up and down along with the up and down movement of the air supply pipe fitting 53; the air supply pipe fitting 53 is provided with a clamping concave ring 537, the extension pipe fitting 671 is provided with a clamping convex ring 677, the outer wall of the clamping convex ring 677 is bonded with a layer of rubber layer, and the clamping convex ring 677 and the clamping concave ring 537 are mutually clamped and matched.

Further, the piston member 672 comprises a piston head 681 made of rubber and a piston rod 682 connected to the piston head 681, the piston rod 682 is a metal rod, the elastic member 673 is a spring, the elastic member 673 is fitted over the piston rod 682, the bracket 674 is a metal frame, and the upper end of the bracket 674 and the extension pipe 671 are screwed; the piston rod 682 is partially inserted into the bracket 674, a sealing boss 675 is arranged on the inner wall of the extending pipe 671, the inner wall of the sealing boss 675 is arranged in an inclined mode from top to bottom, a sealing layer is adhered to the sealing boss 675, the sealing layer is a rubber layer, and the piston head 681 is in sealing contact with the inner wall of the sealing layer.

It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Claims

1. A natural gas filter, characterized by: comprises that

The gas inlet pipe fitting (1), the gas inlet pipe fitting (1) is arranged in an L shape, and natural gas containing impurities enters through the pipe fitting;

the gas outlet pipe fitting (2) is used for conveying the filtered natural gas out of the gas outlet pipe fitting (2);

the cover plate (3) is detachably connected with the end part of the air inlet pipe fitting (1);

the filtering structure (4) is used for filtering impurities in natural gas and comprises a filter element (40) detachably connected with the gas outlet pipe fitting (2);

and the blow-down structure (5) is used for blowing gas out of the filter element (40) from inside to outside to blow off solid impurities attached to the outer wall of the filter element (40) and blowing out the solid impurities from the bottom of the air inlet pipe fitting (1).

2. A natural gas filter according to claim 1, wherein: the blowdown structure (5) include with first lateral tube spare (51) that the pipe fitting (2) of giving vent to anger are linked together, with second lateral tube spare (52) that the pipe fitting (1) of admitting air is linked together, be used for to first lateral tube spare (51) air supply pipe spare (53) of insufflating air, second lateral tube spare (52) cover is located on first lateral tube spare (51).

3. A natural gas filter according to claim 2, wherein: the pollution discharge structure (5) further comprises a first blocking component (61) used for blocking the first branch pipe fitting (51) and a second blocking component (62) used for blocking the second branch pipe fitting (52), and the air supply pipe fitting (53) is in sealing fit with the first blocking component (61).

4. A natural gas filter according to claim 3, wherein: the second plugging part (62) comprises a connecting piece (65) detachably connected with the second branch pipe fitting (52) and a sealing ring piece (66) used for plugging the connecting piece (65), and the sealing ring piece (66) is arranged on the connecting piece (65).

5. A natural gas filter according to claim 4, wherein: a first air outlet (651) is formed in the connecting piece (65), and a first blocking column (662) which is in sealing fit with the first air outlet (651) is formed in the sealing ring sheet (66); be equipped with on sealing ring piece (66) with second air outlet (661) that first air outlet (651) stagger and set up, be equipped with on connecting piece (65) and be used for blockking up second shutoff post (652) of second air outlet (661).

6. A natural gas filter according to claim 4, wherein: the sealing ring piece (66) is provided with a first magnetic part (665), and the air supply pipe fitting (53) is provided with a second magnetic part (535) which is matched with the first magnetic part (665) to push the sealing ring piece (66) to move upwards.

7. A natural gas filter according to claim 3, wherein: the first blocking component (61) comprises an extension pipe member (671) which is in sealing fit with the first branch pipe member (51), a piston member (672) which is in sealing fit with the inner wall of the extension pipe member (671), an elastic member (673) which is connected with the piston member (672), and a bracket (674) which is connected with the piston member (672), wherein the bracket (674) is connected with the end part of the extension pipe member (671).

8. A natural gas filter according to claim 7, wherein: the extension pipe fitting (671) is provided with a sealing boss (675) with an end face inclined from top to bottom on the inner wall, and the sealing boss (675) is bonded with a sealing layer matched with the piston piece (672).

9. A natural gas filter according to claim 7, wherein: the air supply pipe fitting is characterized in that a clamping convex ring (677) is arranged on the inner wall of the extension pipe fitting (671), a clamping concave ring (537) matched with the clamping convex ring (677) is arranged on the air supply pipe fitting (53), and a rubber layer is arranged on the clamping convex ring (677).

10. A natural gas filter according to claim 1, wherein: be equipped with first spiral groove (21) on giving vent to anger pipe fitting (2) inner wall, be equipped with second spiral groove (11) on the pipe fitting (1) inside of admitting air.