Filter for gas pipeline transportation

Abstract

The utility model discloses a filter for gas pipeline transportation, which relates to the technical field of filters and comprises a shell, a gas inlet pipe is fixedly connected to one side of the shell, a gas outlet pipe is fixedly connected to the other side of the shell, and connecting flanges are arranged at the ends, away from the shell, of the gas inlet pipe and the gas outlet pipe. The gas inlet pipe penetrates through the outer wall of the shell and extends to the inner side of the shell, the filter element is used for filtering impurities in fuel gas, after the filter element is used for a long time, the filter element needs to be replaced, the cover plate is driven to rotate through the rotating handle firstly, butt-joint threads of the cover plate are separated from threaded connection grooves of the shell, and then the sealing mechanism is taken down; then a handle is pulled to drive a second sealing plate, a filter element and a third sealing plate to pull out the filtering mechanism from the inner side of the shell, a new filtering mechanism is placed on the inner side of the shell, a sealing mechanism is installed, the flange does not need to be detached, the effect that the filter element is convenient to replace is achieved, and the problem that an existing gas filter is not prone to replacing the filter element is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter technical field, especially a filter for gas pipeline transportation. BACKGROUND

[0002] In gas transportation, will be mixed with condensed water, light oil, ash or seepage groundwater and other impurities, need to be removed regularly, otherwise will affect the gas transportation, therefore need to filter the gas in the pipeline.

[0003] At present, the existing gas filter is mostly made by the following technology;

[0004] Mechanical filtration technology, including filter screen filtration and filter core filtration, wherein filter core filtration is often used for gas filtration, filter core material has multiple choices, such as paper filter core, fiber filter core and ceramic filter core etc.;

[0005] Centrifugal separation technology, by making gas produce high-speed rotation, utilize the difference of impurity and gas itself density to realize separation, often used for large gas delivery station, less used for conventional domestic gas delivery;

[0006] Adsorption technology, including activated carbon adsorption and molecular sieve adsorption;

[0007] Sealing technology, to ensure the air tightness and safety of filter, adopts multiple sealing connection technology, commonly used sealing pad.

[0008] At present, the existing filter that filter core is used to filter gas mostly has the problem of not easy to replace filter core, wants to replace filter core to need to detach the filter whole from the pipeline, takes down and replaces the new filter core from the air inlet or air outlet, time-consuming and laborious and the operation is troublesome, so the existing gas filter has the problem of not easy to replace filter core. INNOVATION CONTENT

[0009] In view of the deficiency of prior art, the utility model provides a filter for gas pipeline transportation, solves the problem of not easy to replace filter core of the existing gas filter.

[0010] To realize above-mentioned purpose, the utility model realizes by following technical scheme:

[0011] The utility model provides a filter for gas pipeline delivery, one side of shell is fixedly connected with air inlet pipe, the other side of shell is fixedly connected with air outlet pipe, and the end away from shell of air inlet pipe and air outlet pipe is provided with connecting flange, air inlet pipe extends to the inside of shell through the outer wall of shell, air inlet pipe is L type, the inner wall of shell is fixedly connected with first sealing plate, first sealing plate is fixedly connected with air inlet pipe, the top of first sealing plate is provided with filter mechanism, the top of shell is provided with sealing mechanism, and filter mechanism includes filter core, and sealing mechanism includes cover plate.

[0012] Preferably, the top of the cover plate is fixedly connected with a rotating handle, the circumferential surface of the cover plate is provided with a mating thread, and the bottom of the cover plate is provided with a groove.

[0013] Preferably, the top opening of the shell is provided with a threaded slot, and the shell is fixedly connected with a sealing ring below the threaded slot.

[0014] Preferably, the bottom of the filter core is fixedly connected with a third sealing plate, the diameter of the third sealing plate is smaller than the diameter of the inner ring of the sealing ring, the filter core is arranged inside the shell as a whole, the filter core and the third sealing plate are both provided with an air inlet, and the filter core and the third sealing plate are both sleeved with the air inlet pipe located inside the shell through the air inlet.

[0015] Preferably, the third sealing plate is in contact with the first sealing plate, the top of the filter core is fixedly connected with a second sealing plate, and the side away from the filter core of the second sealing plate is fixedly connected with a handle.

[0016] Preferably, the side close to the filter core of the second sealing plate is in contact with the top surface of the sealing ring.

[0017] Preferably, the cover plate is threadedly connected with the threaded slot of the shell through the mating thread.

[0018] Preferably, the handle is located in the groove of the bottom of the cover plate and is extrudedly connected with the inner bottom surface of the cover plate, and the surface of the shell is fixedly provided with an observation window.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] Firstly, the L-shaped air inlet pipe is provided, the filter core is used for filtering impurities in gas, and after the filter core is used for a long time, it needs to be replaced. The cover plate is rotated by the rotating handle, the mating thread of the cover plate is disconnected with the threaded slot of the shell, and then the sealing mechanism is removed. Subsequently, the handle is pulled to drive the second sealing plate, the filter core and the third sealing plate to pull out the filter mechanism from the inside of the shell. The new filter mechanism is placed inside the shell, and the sealing mechanism is installed, so that the flange does not need to be disassembled. The utility model has the effect of facilitating replacement of the filter core, and solves the problem that the existing gas filter is not easy to replace the filter core.

[0021] Secondly, the second sealing plate and the third sealing plate are arranged at the upper and lower ends of the filter element, the gas introduced from the air inlet pipe is discharged through the outlet on the inner side of the shell, the outlet is covered by the filter element as a whole, so that the gas can only be discharged from the filter hole of the filter element, the third sealing plate cooperates with the first sealing plate to prevent the gas from being discharged from the bottom of the filter element, the second sealing plate cooperates with the sealing ring to prevent the gas from being discharged from the top of the filter element and simultaneously plays a preliminary sealing effect to prevent leakage, the filtered gas is discharged from the air outlet pipe to realize the operation of gas filtering, the cover plate is threadedly connected with the threaded groove through the butt joint thread to play a second sealing effect, and the gas leakage is further prevented, so that the application has high stability. BRIEF DESCRIPTION OF DRAWINGS

[0022] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and the utility model can be implemented according to the content of the specification, and the following preferred embodiments of the utility model are described in detail in cooperation with the drawings.

[0023] Figure 1 It is the overall structure diagram of the utility model;

[0024] Figure 2 It is the partial separation state structure diagram of the utility model;

[0025] Figure 3 It is the shell and filter mechanism structure diagram of the utility model;

[0026] Figure 4 It is the sealing mechanism structure diagram of the utility model;

[0027] Figure 5 It is the filter mechanism bottom structure diagram of the utility model;

[0028] Figure 6 It is the shell cross section structure diagram of the utility model;

[0029] Figure 7 It is the shell partial cross section and filter mechanism structure diagram of the utility model.

[0030] Legend: 1, shell;2, cover plate;3, filter element;101, air inlet pipe;102, air outlet pipe;103, observation window;104, sealing ring;105, threaded groove;106, first sealing plate;201, rotating handle;202, butt joint thread;301, second sealing plate;302, handle;303, third sealing plate. DETAILED DESCRIPTION

[0031] The filter for gas pipeline transportation provided by the embodiment of the application effectively solves the problem that the existing gas filter is not easy to replace the filter element.

[0032] EMBODIMENT

[0033] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 And Figure 7 As shown in the technical scheme in the embodiments of the present application, the technical scheme effectively solves the technical problem that the existing gas filter is not easy to replace the filter element, and the general idea is as follows:

[0034] In view of the problems existing in the prior art, the utility model provides a filter for gas pipeline transportation, which comprises an outer shell 1, one side of the outer shell 1 is fixedly connected with an air inlet pipe 101, the other side of the outer shell 1 is fixedly connected with an air outlet pipe 102, the ends of the air inlet pipe 101 and the air outlet pipe 102 away from the outer shell 1 are provided with connecting flanges, the air inlet pipe 101 extends to the inner side of the outer shell 1 through the outer wall of the outer shell 1, the air inlet pipe 101 is L-shaped, the inner wall of the outer shell 1 is fixedly connected with a first sealing plate 106, the first sealing plate 106 is fixedly connected with the air inlet pipe 101, a filter mechanism is arranged above the first sealing plate 106, a sealing mechanism is arranged on the top of the outer shell 1, the filter mechanism comprises a filter element 3, and the sealing mechanism comprises a cover plate 2.

[0035] The top of the cover plate 2 is fixedly connected with a rotating handle 201, the circumferential surface of the cover plate 2 is provided with a butt joint thread 202, and the bottom of the cover plate 2 is provided with a groove.

[0036] The top opening of the outer shell 1 is provided with a threaded groove 105, and a sealing ring 104 is fixedly connected below the threaded groove 105.

[0037] The bottom of the filter element 3 is fixedly connected with a third sealing plate 303, the diameter of the third sealing plate 303 is smaller than that of the inner circle of the sealing ring 104, the filter element 3 is arranged on the inner side of the outer shell 1, the filter element 3 and the third sealing plate 303 are provided with air inlets, and the filter element 3 and the third sealing plate 303 are sleeved with the air inlet pipe 101 located on the inner side of the outer shell 1 through the air inlets.

[0038] The third sealing plate 303 is in contact with the first sealing plate 106, the top of the filter element 3 is fixedly connected with a second sealing plate 301, and the side of the second sealing plate 301 away from the filter element 3 is fixedly connected with a handle 302.

[0039] The side of the second sealing plate 301 close to the filter element 3 is in contact with the top surface of the sealing ring 104.

[0040] The cover plate 2 is threadedly connected with the threaded groove 105 of the outer shell 1 through the butt joint thread 202.

[0041] The handle 302 is located in the groove opened at the bottom of the cover plate 2 and is extrudedly connected with the inner bottom surface of the cover plate 2, and the surface of the shell 1 is fixedly provided with an observation window 103.

[0042] Working principle:

[0043] Firstly, the filter element 3 of the present application is used for filtering impurities in the gas, and after long-time use, it needs to be replaced, firstly, the cover plate 2 is rotated by rotating the rotating handle 201, so that the butt joint thread 202 of the cover plate 2 is disconnected with the thread connecting groove 105 of the shell 1, and then the sealing mechanism is removed, and then the second sealing plate 301, the filter element 3 and the third sealing plate 303 are pulled out of the inner side of the shell 1 by pulling the handle 302, a new filter mechanism is placed on the inner side of the shell 1, and the sealing mechanism is installed.

[0044] Secondly, the gas introduced from the inlet pipe 101 is discharged through the outlet located on the inner side of the shell 1, the outlet is covered by the filter element 3 as a whole, so that the gas can only be discharged from the filter hole of the filter element 3, the third sealing plate 303 cooperates with the first sealing plate 106 to prevent the gas from being discharged from the bottom of the filter element 3, the second sealing plate 301 cooperates with the sealing ring 104 to prevent the gas from being discharged from the top of the filter element 3 and at the same time to achieve the preliminary sealing effect to prevent leakage, the filtered gas is discharged from the outlet pipe 102 to realize the operation of gas filtering, the cover plate 2 is threadedly connected with the thread connecting groove 105 through the butt joint thread 202 to achieve the sealing in the second step, further to prevent gas leakage, so that the present application has high stability.

[0045] Finally, it should be pointed out that: obviously, the above embodiments are only examples for clearly illustrating the present application, and are not limited to the implementation mode. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or variations can be made. Here, it is not necessary and impossible to enumerate all the implementation modes. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A filter for gas pipeline transportation, comprising a housing (1), wherein an inlet pipe (101) is fixedly connected to one side of the housing (1), and an outlet pipe (102) is fixedly connected to the other side of the housing (1), wherein both the inlet pipe (101) and the outlet pipe (102) are provided with connecting flanges at their ends away from the housing (1), characterized in that, The air inlet pipe (101) extends through the outer wall of the shell (1) to the inner side of the shell (1), the air inlet pipe (101) is L-shaped, the inner wall of the shell (1) is fixedly connected with a first sealing plate (106), the first sealing plate (106) is fixedly connected with the air inlet pipe (101), the upper side of the first sealing plate (106) is provided with a filtering mechanism, and the top of the shell (1) is provided with a sealing mechanism. The filtering mechanism comprises a filter element (3). The sealing mechanism comprises a cover plate (2).

2. A filter for use in gas pipeline delivery as claimed in claim 1, wherein: The top of the cover plate (2) is fixedly connected with a rotating handle (201), the circumferential surface of the cover plate (2) is provided with a butt thread (202), and the bottom of the cover plate (2) is provided with a groove.

3. A filter for use in gas pipeline delivery as claimed in claim 2, characterised in that: The top opening of the shell (1) is provided with a threaded groove (105), and the shell (1) is fixedly connected with a sealing ring (104) below the threaded groove (105).

4. A filter for gas pipeline delivery as claimed in claim 3, wherein: The bottom of the filter element (3) is fixedly connected with a third sealing plate (303), the diameter of the third sealing plate (303) is smaller than the diameter of the inner ring of the sealing ring (104), the filter element (3) is arranged on the inner side of the shell (1), and the filter element (3) and the third sealing plate (303) are provided with air inlets.

5. A filter for gas pipeline delivery as claimed in claim 4, wherein: The third sealing plate (303) is in contact with the first sealing plate (106), the top of the filter element (3) is fixedly connected with a second sealing plate (301), and the side away from the filter element (3) of the second sealing plate (301) is fixedly connected with a handle (302).

6. A filter for gas pipeline delivery as claimed in claim 5 wherein: The side of the second sealing plate (301) close to the filter element (3) is in contact with the top surface of the sealing ring (104).

7. A filter for gas pipeline delivery as claimed in claim 6 wherein: The cover plate (2) is threadedly connected with the threaded groove (105) of the shell (1) through the butt thread (202).

8. A filter for gas pipeline delivery as claimed in claim 7, wherein: The handle (302) is located in the groove at the bottom of the cover plate (2) and is in extrusion connection with the inner bottom surface of the cover plate (2), and the surface of the shell (1) is fixedly provided with an observation window (103).

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