A basket type natural gas filter

Abstract

The utility model relates to the technical field of natural gas filtration, and in particular to a basket-type natural gas filter, including a filter housing, an air inlet pipe, an air outlet pipe, a plurality of pressure monitoring gauges and a control panel, a plurality of mounting blocks are provided on the side wall of the filter housing, a top cover is provided on the filter housing, a filter screen is provided inside the filter housing, a quick-release mechanism for quickly opening the openings of the top cover and the filter housing is provided between the plurality of mounting blocks and the top cover, and a sealing mechanism is provided at the connection between the filter housing and the air inlet pipe and the air outlet pipe respectively. The utility model realizes the quick opening of the top cover through the cooperation of the first quick-release bolt, the first lifting eye nut, the mounting block, the rotating member and the first clamping block, and further ensures the sealing of the connection between the filter housing and the natural gas pipeline through the cooperation of the second quick-release bolt, the second lifting eye nut, the first jacket and the second jacket.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas filtering, in particular to a basket-type natural gas filter. Background Art

[0002] The natural gas entering the gas distribution station always carries a small amount of micron or submicron impurities due to long-distance transportation or other reasons (natural gas produces corrosion on the inner wall of the pipeline, and the remaining impurities after the upper-level gas gathering station, purification plant or gas distribution station separates, removes dust and purifies the natural gas), which affects the normal and stable operation of the pressure regulator and metering device in the station. The natural gas filter is a device that can effectively filter fine dust and water vapor in natural gas. It is an indispensable equipment in the natural gas gate station.

[0003] At present, a Chinese utility model patent application with announcement date of June 30, 2023 and announcement number CN219272513U proposes a natural gas filter. By pushing the push rod up, the top of the push rod can drive the brush ring to perform reciprocating lifting and lowering motion in the filter basket through the lifting plate. The impurities adhering to the inner wall surface of the filter basket can be cleaned through the brush ring, which can reduce the number of times the filter basket is disassembled and cleaned, making it more convenient to use.

[0004] In the prior art, flange bolts are usually used for installation of natural gas pipelines and filters. However, with the popularization of natural gas, the transportation volume is large and the time is long. This method is not suitable for filters with high pressure and large cylinder diameter. The sealing performance is poor, and effective measures cannot be taken quickly for natural gas leakage. In addition, maintenance workers are required to regularly open the upper cover of the filter and take out the basket filter element for cleaning. The existing filter upper cover and the filter housing are also installed by multiple bolts. Each time the filter is cleaned, multiple bolts need to be removed in sequence, which is troublesome. For this reason, we designed a basket-type natural gas filter. Utility Model Content

[0005] The utility model aims to solve the problem that the sealing performance of the connection between the natural gas pipeline and the filter in the prior art is poor, and each time the filter is cleaned, multiple bolts need to be removed in sequence, which is troublesome to operate, and a basket type natural gas filter is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A basket-type natural gas filter comprises a filter housing, an air inlet pipe, an air outlet pipe, a plurality of pressure monitoring gauges and a control panel. Pressure monitoring gauges are provided at the air inlet and the air outlet of the filter housing. The air pressures at the air inlet and the air outlet are respectively transmitted to the control panel in the form of electrical signals according to the two pressure monitoring gauges. The control panel compares the air pressure difference monitored by the two pressure monitoring gauges. When the air pressure difference at the air inlet and the air outlet is large, a signal is sent to remind the staff to clean the filter screen. At the same time, it is convenient to monitor whether there is leakage at the connection between the filter housing and the natural gas pipeline.

[0008] Optionally, a plurality of mounting blocks are provided on the side wall of the filter housing, an upper cover is provided on the filter housing, a filter screen is provided in the filter housing, a quick release mechanism for quickly opening the upper cover and the opening of the filter housing is provided between the plurality of mounting blocks and the upper cover, the quick release mechanism comprises a plurality of first clamping blocks, the plurality of first clamping blocks are respectively provided on the opening side wall of the filter housing and the side wall of the upper cover corresponding to the plurality of mounting blocks, and a first groove is provided at one end of the mounting block and the first clamping block away from the filter housing;

[0009] A plurality of first rotating members, a plurality of first quick-release bolts and a plurality of first lifting eye nuts, wherein the first rotating member is arranged in a first groove of a mounting block, the first rotating member is rotatably connected to the mounting block, the first rotating member is fixedly connected to the first quick-release bolt, and the first lifting eye nut is arranged at an end of the first quick-release bolt away from the first rotating member.

[0010] By adopting the above technical solution, by respectively rotating the first eye nut on the first quick-release bolt counterclockwise for a certain distance, there is no need to unscrew the first eye nut off the first quick-release bolt, and the first quick-release bolt can be rotated and moved out in the first groove of the upper cover. A blocking block is provided at the opening of the first groove of one of the mounting blocks, which is used to limit the freedom of the first rotating part there. Since the width of the first quick-release bolt is smaller than the width of the first groove, the upper cover can be rotated to one side with the first quick-release bolt there as the center, which is convenient for opening the filter housing opening, and the filter can be taken out for cleaning by lifting the handle on the filter, and the disassembly is simple and convenient.

[0011] Optionally, the filter housing is connected to the air inlet and the air outlet through the air inlet and the air outlet, respectively, and the connections between the air inlet and the air outlet and the air inlet and the air outlet are fixedly connected through flanges and connecting bolts, and the connections between the filter housing and the air inlet and the air outlet are respectively provided with sealing mechanisms;

[0012] The sealing mechanism comprises a first jacket and a second jacket for increasing the sealing performance of a connection between a filter housing and a natural gas pipeline, the sealing mechanism also comprises a first connecting shaft, a pair of second clamping blocks and a second rotating member, the first jacket and the second jacket are both semicircular, one end of the first jacket and the second jacket are rotatably connected by the first connecting shaft, and the other end is respectively fixedly connected to a pair of second clamping blocks, the second clamping blocks are each provided with a second groove at one end away from the first connecting shaft, the second clamping blocks are rotatably connected to the second rotating member through the second connecting shaft in the second groove of the second clamping block on the second jacket, the second rotating member is fixedly connected to the second quick-release bolt, the second lifting ring nut is arranged at one end of the second quick-release bolt away from the second rotating member, by tightening the second lifting ring nut on the second quick-release bolt, the clamping grooves of the first jacket and the second jacket cover the sides of a pair of flanges fixedly connected by bolts, and a sealing rubber pad is arranged in the clamping grooves of the first jacket and the second jacket, so as to further ensure the sealing performance of the connection between the filter housing and the natural gas pipeline, the sealing performance is good, and the filter is suitable for filters with higher pressure and larger cylinder diameter.

[0013] Optionally, an inclined mounting frame is provided in the filter housing, a raised side extends outward from the top of the filter screen, the raised side is clamped on the mounting frame, and a handle is provided on the filter screen.

[0014] By adopting the above technical solution, it is convenient to install the filter in the filter housing, and the mounting frame is arranged obliquely in the filter housing. Since the air inlet pipe and the air outlet pipe are located at the same height, and the top of the filter is arranged obliquely, that is, the opening of the filter is lower than the height of the air inlet pipe and higher than the height of the air outlet pipe, it is convenient to intercept impurities in the natural gas in the filter.

[0015] Optionally, the length of the first quick-release bolt is greater than the height from the mounting block to the upper cover, the width of the first lifting eye nut is greater than the width of the first groove opening, the first lifting eye bolt is arranged at an end of the first quick-release bolt away from the first rotating member, the width of the first quick-release bolt is smaller than the width of the first groove, the length of the second quick-release bolt is greater than the height of a pair of second clamping blocks, and the width of the second lifting eye nut is greater than the width of the second groove.

[0016] By adopting the above technical solution, by tightening the first lifting eye nut on the first quick-release bolt respectively, the upper cover covers the opening of the filter housing, and by respectively rotating the first lifting eye nut on the first quick-release bolt counterclockwise for a certain distance, there is no need to unscrew the first lifting eye nut from the first quick-release bolt, and the first quick-release bolt can be rotated and removed in the first groove of the upper cover, and the upper cover can be rotated to one side to facilitate opening the filter housing opening, while avoiding the loss of the disassembled bolts and nuts.

[0017] Optionally, the control panel is arranged on the upper cover, a protective shell is provided on the control panel, and the control panel is respectively connected to electrical signals of a plurality of pressure monitoring gauges.

[0018] By adopting the above technical solution, the air pressure at the air inlet and the air outlet are transmitted to the control board in the form of electrical signals according to the two pressure monitoring gauges. The control board compares the air pressure difference monitored by the two pressure monitoring gauges. When the air pressure difference at the air inlet and the air outlet is large, a signal is sent to remind the staff to clean the filter.

[0019] Optionally, a mounting base plate is provided at the bottom of the filter housing, a plurality of bolt mounting holes are opened on the mounting base plate, mounting bolts are provided in each of the plurality of bolt mounting holes, an exhaust port is provided on the upper cover, and a sealing gasket is provided between the filter housing and the upper cover.

[0020] By adopting the above technical solution, the filter housing is installed at a desired location through the installation base plate and the installation bolts, and a sealing gasket is provided between the opening of the filter housing and the upper cover to ensure the sealing of the filter housing.

[0021] The beneficial effects of the utility model are:

[0022] 1. The utility model cooperates with the second quick-release bolt, the second lifting eye nut, the first jacket and the second jacket so that the clamping grooves of the first jacket and the second jacket cover the sides of a pair of flanges fixedly connected by bolts, and sealing pads are arranged in the clamping grooves of the first jacket and the second jacket, which further ensures the sealing of the connection between the filter housing and the natural gas pipeline. The sealing is good and is suitable for filters with higher pressure and larger cylinder diameter.

[0023] 2. The utility model realizes rotating the upper cover to one side with the first quick-release bolt as the center through the cooperation of the first quick-release bolt, the first lifting eye nut, the mounting block, the rotating member and the first clamping block, so as to facilitate the rapid opening of the filter housing, and the filter can be taken out for cleaning by lifting the handle on the filter. The disassembly is simple and convenient, and the loss of the disassembled bolts and nuts can be avoided.

[0024] 3. The utility model provides pressure monitoring gauges at the air inlet and outlet of the filter housing. The air pressure at the air inlet and outlet is transmitted to the control panel in the form of electrical signals according to the two pressure monitoring gauges. The control panel compares the air pressure difference monitored by the two pressure monitoring gauges. When the air pressure difference at the air inlet and outlet is large, a signal is sent to remind the staff to clean the filter. At the same time, it is convenient to monitor whether there is leakage at the connection between the filter housing and the natural gas pipeline, so that the staff can quickly take effective measures. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1The utility model is a structural schematic diagram of a basket-type natural gas filter.

[0026] Figure 2 The utility model is a schematic diagram of the internal structure of a filter housing of a basket-type natural gas filter.

[0027] Figure 3 The utility model is a schematic diagram of a basket-type natural gas filter in a disassembled state.

[0028] Figure 4 The utility model is a perspective view of a basket-type natural gas filter.

[0029] Figure 5 The utility model is a schematic diagram of the filter screen structure of a basket-type natural gas filter.

[0030] Figure 6 The utility model is a schematic diagram of a sealing mechanism of a basket-type natural gas filter.

[0031] Figure 7 This is a schematic diagram of the second quick-release bolt structure of a basket-type natural gas filter proposed by the utility model.

[0032] In the figure: 1. filter housing; 2. air inlet; 3. air outlet; 4. air inlet duct; 5. air outlet duct; 6. upper cover; 7. mounting block; 8. first clamping block; 9. first rotating member; 10. first quick-release bolt; 11. first lifting eye nut; 12. pressure monitoring gauge; 13. control panel; 14. protective shell; 15. mounting frame; 16. first jacket; 17. second jacket; 18. first connecting shaft; 19. second clamping block; 20. second rotating member; 21. second quick-release bolt; 22. second connecting shaft; 23. second lifting eye nut; 24. filter; 25. handle; 26. mounting base plate; 27. mounting bolt; 28. exhaust port; 29. ​​sealing gasket. DETAILED DESCRIPTION

[0033] Reference Figure 1-Figure 7 A basket-type natural gas filter comprises a filter housing 1, an air inlet pipe 4, an air outlet pipe 5, a plurality of pressure monitoring gauges 12 and a control panel 13. A mounting base plate 26 is provided at the bottom of the filter housing 1. A plurality of bolt mounting holes are provided on the mounting base plate 26. Mounting bolts 27 are provided in each of the plurality of bolt mounting holes. The filter housing 1 is mounted at a desired location through the mounting base plate 26 and the mounting bolts 27.

[0034] The control panel 13 is arranged on the upper cover 6, and a protective shell 14 is provided on the control panel 13. The control panel 13 is respectively connected to multiple pressure monitoring gauges 12 by electrical signals. The air pressure at the air inlet 2 and the air outlet 3 is respectively transmitted to the control panel 13 in the form of electrical signals through two pressure monitoring gauges 12. The control panel 13 compares the air pressure difference monitored by the two pressure monitoring gauges 12. When the air pressure difference between the air inlet 2 and the air outlet 3 is large, a signal is sent to remind the staff to clean the filter 24.

[0035] Reference Figure 1 and Figure 2 A plurality of mounting blocks 7 are provided on the side wall of the filter housing 1, an upper cover 6 is provided on the filter housing 1, a filter screen 24 is provided in the filter housing 1, and a quick release mechanism is provided between the plurality of mounting blocks 7 and the upper cover 6, and the quick release mechanism is used to quickly open the opening of the upper cover 6 and the filter housing 1;

[0036] The quick-release mechanism includes a plurality of first clamping blocks 8, and the plurality of first clamping blocks 8 correspond to a plurality of mounting blocks 7 respectively and are arranged on the opening side wall of the filter housing 1 and the side wall of the upper cover 6. The mounting block 7 and the first clamping block 8 are both provided with a first groove at one end away from the filter housing 1. The first rotating member 9 is arranged in the first groove of the mounting block 7. The first rotating member 9 is rotatably connected to the mounting block 7. The first rotating member 9 is fixedly connected to the first quick-release bolt 10. By respectively rotating the first lifting eye nut 11 on the first quick-release bolt 10 counterclockwise, the first quick-release bolt 10 is rotated and removed in the first groove of the upper cover 6, and the upper cover 6 is rotated to one side with the first quick-release bolt 10 thereat as the center of the circle, so as to facilitate opening the opening of the filter housing 1.

[0037] Reference Figure 1 and Figure 2 A blocking block is provided at the opening of the first groove of one of the mounting blocks 7, and the first lifting eye nut 11 is arranged at the end of the first quick-release bolt 10 away from the first rotating member 9. The effect of such arrangement is to limit the degree of freedom of the first rotating member 9 at that location. Since the width of the first quick-release bolt 10 is smaller than the width of the first groove, the upper cover 6 is rotated to one side with the first quick-release bolt 10 at that location as the center of the circle, so as to facilitate opening the opening of the filter housing 1, and the filter screen 24 is taken out for cleaning by lifting the handle 25 on the filter screen 24.

[0038] Reference Figure 1 and Figure 4 The filter housing 1 is connected to the air inlet 4 and the air outlet 5 through the air inlet 2 and the air outlet 3 respectively. The connections between the air inlet 2 and the air outlet 3 and the air inlet 4 and the air outlet 5 are fixedly connected through flanges and connecting bolts. The connections between the filter housing 1 and the air inlet 4 and the air outlet 5 are respectively provided with sealing mechanisms, which are used to increase the sealing performance of the connection between the filter housing 1 and the natural gas pipeline;

[0039] The sealing mechanism also includes a first connecting shaft 18, a pair of second clamping blocks 19 and a second rotating member 20. The first jacket 16 and the second jacket 17 are both semi-circular in shape. One end of the first jacket 16 and the second jacket 17 are rotatably connected by the first connecting shaft 18, and the other end is fixedly connected to the pair of second clamping blocks 19 respectively. The second clamping blocks 19 are provided with a second groove at one end away from the first connecting shaft 18. The second groove of the second clamping block 19 on the second jacket 17 is rotatably connected to the second rotating member 20 through the second connecting shaft 22. The second rotating member 20 is fixedly connected to the second quick-release bolt 21. The second lifting ring nut 23 is arranged at one end of the second quick-release bolt 21 away from the second rotating member 20. By tightening the second lifting ring nut 23 on the second quick-release bolt 21, the clamping grooves of the first jacket 16 and the second jacket 17 will cover the sides of a pair of flanges fixedly connected by bolts.

[0040] Reference Figure 4 and Figure 5 A tilted mounting frame 15 is provided in the filter housing 1, a raised side is extended outward from the top of the filter screen 24, and the raised side is clamped on the mounting frame 15. A handle 25 is provided on the filter screen 24. Since the air inlet pipe 4 and the air outlet pipe 5 are located at the same height, and the top of the filter screen 24 is tilted, that is, the opening of the filter screen 24 is lower than the height of the air inlet pipe 4 and higher than the height of the air outlet pipe 5, it is convenient to intercept impurities in the natural gas in the filter screen 24.

[0041] Reference Figure 1 and Figure 2 , the length of the first quick-release bolt 10 is greater than the height between the mounting block 7 and the upper cover 6, the width of the first lifting eye nut 11 is greater than the width of the opening of the first groove, the first lifting eye nut 11 is arranged at one end of the first quick-release bolt 10 away from the first rotating member 9, the width of the first quick-release bolt 10 is less than the width of the first groove, the length of the second quick-release bolt 21 is greater than the height of a pair of second clamping blocks 19, and the width of the second lifting eye nut 23 is greater than the width of the second groove;

[0042] The effect of such arrangement is that by respectively rotating the first eye nut 11 on the first quick-release bolt 10 counterclockwise for a certain distance, the upper cover 6 is rotated to one side with the first quick-release bolt 10 as the center, so that the opening of the filter housing 1 is opened conveniently, and the filter screen 24 can be taken out for cleaning by lifting the handle 25 on the filter screen 24, which makes disassembly simple and convenient, and avoids the loss of the disassembled bolts and nuts.

[0043] Reference Figure 2 and Figure 3The control panel 13 is arranged on the upper cover 6, a protective shell 14 is arranged on the control panel 13, the control panel 13 is respectively connected with a plurality of pressure monitoring gauges 12 by electrical signals, an exhaust port 28 is arranged on the upper cover 6, and a sealing gasket 29 is arranged between the filter housing 1 and the upper cover 6. The effect of such arrangement is to provide a good working environment for the control panel 13.

[0044] The working principle of the utility model is as follows:

[0045] The filter housing 1 is installed at a desired location by installing a base plate 26 and mounting bolts 27. Pressure monitoring gauges 12 are provided at both the air inlet 2 and the air outlet 3 of the filter housing 1. The air pressures at the air inlet 2 and the air outlet 3 are respectively transmitted to the control panel 13 in the form of electrical signals through the two pressure monitoring gauges 12. The control panel 13 compares the air pressure difference monitored by the two pressure monitoring gauges 12. When the air pressure difference between the air inlet 2 and the air outlet 3 is large, a signal is sent to remind the staff to clean the filter screen 24. At the same time, it is convenient to monitor whether there is leakage at the connection between the filter housing 1 and the natural gas pipeline;

[0046] By tightening the second lifting eye nut 23 on the second quick-release bolt 21, the clamping grooves of the first jacket 16 and the second jacket 17 cover the sides of the pair of flanges fixedly connected by bolts, and sealing rubber pads are provided in the clamping grooves of the first jacket 16 and the second jacket 17;

[0047] When the filter screen 24 needs to be cleaned, the first eye nut 11 on the first quick-release bolt 10 is rotated counterclockwise to move the first quick-release bolt 10 out of the first groove of the upper cover 6, and the upper cover 6 is rotated to one side with the first quick-release bolt 10 as the center of the circle to open the opening of the filter housing 1, and the filter screen 24 is taken out for cleaning by lifting the handle 25 on the filter screen 24.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A basket-type natural gas filter, comprising a filter housing (1), an air inlet pipe (4), an air outlet pipe (5), a plurality of pressure monitoring gauges (12) and a control panel (13), characterized in that: A plurality of mounting blocks (7) are provided on the side wall of the filter housing (1), an upper cover (6) is provided on the filter housing (1), a filter screen (24) is provided inside the filter housing (1), a quick-release mechanism for quickly opening the openings of the upper cover (6) and the filter housing (1) is provided between the plurality of mounting blocks (7) and the upper cover (6), the filter housing (1) is connected to the air inlet (4) and the air outlet (5) respectively through the air inlet (2) and the air outlet (3), the connection points between the air inlet (2) and the air outlet (3) and the air inlet (4) and the air outlet (5) are fixedly connected by flanges and connecting bolts, the connection points between the filter housing (1) and the air inlet (4) and the air outlet (5) are provided with sealing mechanisms, the sealing mechanisms comprising a first jacket (16) and a second jacket (17) for increasing the sealing performance of the connection point between the filter housing (1) and the natural gas pipeline; The quick release mechanism comprises a plurality of first clamping blocks (8), the plurality of first clamping blocks (8) respectively corresponding to the plurality of mounting blocks (7) arranged on the opening side wall of the filter housing (1) and the side wall of the upper cover (6), the mounting block (7) and the first clamping block (8) both having a first groove at one end away from the filter housing (1); a plurality of first rotating members (9), a plurality of first quick release bolts (10) and a plurality of first lifting eye nuts (11), the first rotating member (9) being arranged in the first groove of the mounting block (7), the first rotating member (9) being rotatably connected to the mounting block (7), the first rotating member (9) being fixedly connected to the first quick release bolt (10), a blocking block being arranged at the opening of the first groove of one of the mounting blocks (7), and the first lifting eye nut (11) being arranged at one end of the first quick release bolt (10) away from the first rotating member (9).

2. A basket-type natural gas filter according to claim 1, characterized in that: An inclined mounting frame (15) is provided in the filter housing (1); a raised side extends outward from the top end of the filter screen (24); the raised side is clamped on the mounting frame (15); and a handle (25) is provided on the filter screen (24).

3. The basket-type natural gas filter according to claim 1, characterized in that: The length of the first quick-release bolt (10) is greater than the height between the mounting block (7) and the upper cover (6), the width of the first lifting eye nut (11) is greater than the width of the opening of the first groove, and the width of the first quick-release bolt (10) is less than the width of the first groove.

4. The basket-type natural gas filter according to claim 1, characterized in that: The sealing mechanism also includes: A first connecting shaft (18), a pair of second clamping blocks (19) and a second rotating member (20); the first jacket (16) and the second jacket (17) are both semicircular in shape; one end of the first jacket (16) and the second jacket (17) are rotatably connected via the first connecting shaft (18), and the other ends are respectively fixedly connected to the pair of second clamping blocks (19); a second groove is formed at one end of the second clamping block (19) away from the first connecting shaft (18); the second groove of the second clamping block (19) on the second jacket (17) is rotatably connected to the second rotating member (20) via the second connecting shaft (22); A second quick-release bolt (21) and a second lifting eye nut (23), wherein the second rotating member (20) is fixedly connected to the second quick-release bolt (21), and the second lifting eye nut (23) is arranged at an end of the second quick-release bolt (21) away from the second rotating member (20).

5. The basket-type natural gas filter according to claim 4, characterized in that: The length of the second quick-release bolt (21) is greater than the height of a pair of second clamping blocks (19), and the width of the second lifting eye nut (23) is greater than the width of the second groove.

6. The basket-type natural gas filter according to claim 1, characterized in that: The control panel (13) is arranged on the upper cover (6), a protective shell (14) is arranged on the control panel (13), and the control panel (13) is respectively connected to a plurality of pressure monitoring gauges (12) by electrical signals.

7. The basket-type natural gas filter according to claim 1, characterized in that: The bottom of the filter housing (1) is provided with a mounting base plate (26), the mounting base plate (26) is provided with a plurality of bolt mounting holes, each of the plurality of bolt mounting holes is provided with a mounting bolt (27), the upper cover (6) is provided with an exhaust port (28), and a sealing gasket (29) is provided between the filter housing (1) and the upper cover (6).

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