A filter screen changing device for a heavy-duty gas turbine natural gas pre-skid module

Abstract

The application discloses a filter screen replacement device for a heavy gas turbine natural gas pre-module, and relates to the field of intelligent equipment, which comprises a dismounting mechanism for dismounting filter screens in a filter screen set, an operation platform for mounting the dismounting mechanism, a lifting mechanism for driving the operation platform to move up and down, and a discharging mechanism for dismounting a bottom cover in the filter screen set, the discharging mechanism is mounted in the operation platform and can dismount the bottom cover during rotation of the filter screen set, and an adsorption device for driving a discharging platform in the discharging mechanism to move down is further mounted below the discharging mechanism. The application can dismount the filter screens and the bottom cover in the filter screen set at one time, which is convenient for replacement of the filter screens and discharge of large-particle impurities in an ash collecting cavity below the filter screens, and improves the efficiency of replacement of the filter screens in the pre-module.

Description

Technical Field

[0001] This invention relates to the field of intelligent equipment, and more specifically to a filter replacement device for a natural gas pre-processing module of a heavy-duty gas turbine. Background Technology

[0002] Currently, during the operation of gas turbines, in order to filter solid particles in natural gas and prevent the gas nozzles from being corroded, scaled, and clogged, the traditional solution for gas turbine terminal filtration is to use a Y-type filter as a pre-module. However, replacing the filter screen is difficult, time-consuming, and labor-intensive. To address this, our company has designed a pre-module that allows for quick filter screen replacement. While solving the above problems, another issue arises: how to achieve quick disassembly of the new pre-module. Therefore, it is necessary to design a replacement device. Summary of the Invention

[0003] The purpose of this invention is to provide a filter replacement device for a natural gas pre-processing module of a heavy-duty gas turbine, so as to solve the above-mentioned defects caused by the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a filter replacement device for a natural gas pre-processing module of a heavy-duty gas turbine, comprising a disassembly mechanism for removing the filter from the filter assembly, wherein the disassembly mechanism removes the filter from the pre-processing module by rotation; An operating platform for installing and dismantling mechanisms, wherein the dismantling mechanisms are installed on the upper part of the operating platform; A lifting mechanism for driving the operating platform to move up and down, wherein the operating platform is installed above the lifting mechanism and the bottom of the operating platform is connected to the output end of the lifting mechanism; A discharge mechanism for removing the bottom cover of the filter assembly is installed inside the operating platform and can disassemble the bottom cover during the rotation of the filter assembly. An adsorption device for driving the discharge platform in the discharge mechanism to move downward is also installed below the discharge mechanism.

[0005] Furthermore, the operating platform includes an upper platform, a lower platform, and a support component connecting the upper platform and the lower platform.

[0006] Furthermore, the disassembly mechanism includes a gear ring, an annular platform, a slewing bearing, and a drive mechanism; The gear ring and slewing bearing are respectively installed on the outer ring and inner ring of the annular platform. The slewing bearing is installed on the bearing seat provided on the upper part of the upper platform. The gear ring is connected to a drive mechanism that can drive the gear ring to rotate. The upper end of the annular platform is provided with a discharge notch that cooperates with the discharge protrusion at the lower end of the filter screen kit.

[0007] Furthermore, the drive mechanism includes a main gear and a servo motor. The main gear meshes with a gear ring, and the servo motor is mounted on the upper platform with its output end connected to the main gear.

[0008] Furthermore, the lifting mechanism includes a base, a support platform, a guide column, and a hydraulic cylinder. The support platform is installed inside the base. The upper end of the guide column is connected to the lower part of the operating platform. The lower end of the guide column passes through the support platform and is connected to a limit nut. The hydraulic cylinder is installed on the support platform and its output end is connected to the lower part of the operating platform.

[0009] Furthermore, the unloading mechanism includes an unloading platform and an elastic support assembly for supporting the unloading platform. The elastic support assembly is installed on the lower platform, and the upper end of the unloading platform is provided with two positioning protrusions that cooperate with the unloading groove provided at the bottom of the bottom cover.

[0010] Furthermore, the elastic support assembly includes a second guide post and a return spring. The upper end of the second guide post is connected to the lower part of the unloading platform, and the lower end of the second guide post passes through the lower platform and is connected to a limit nut. The return spring is sleeved on the second guide post between the unloading platform and the lower platform.

[0011] Furthermore, the adsorption device uses an electromagnet, and a magnetic plate that cooperates with the electromagnet is installed at the lower end of the unloading platform.

[0012] Furthermore, a perimeter fence is installed at the top of the unloading platform, and a negative pressure suction pipe is installed on each of the four side walls of the fence.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention can disassemble the filter and bottom cover of the filter kit in one go, which facilitates the replacement of the filter and the discharge of large particles of impurities in the dust collection chamber below the filter, thereby improving the efficiency of filter replacement in the pre-module.

[0014] 2. This invention simplifies the structural design and reduces costs by setting a floating unloading mechanism below the disassembly mechanism and cooperating with it, so as to remove the bottom cover by means of the rotation of the disassembly mechanism while the filter screen is being disassembled by the disassembly mechanism, without adding additional power equipment. Attached Figure Description

[0015] Figure 1 This is the front view of the present invention.

[0016] Figure 2 This is a schematic diagram of the structure of the present invention.

[0017] Figure 3 For Figure 2 Detailed view of a section at point A.

[0018] Figure 4 This is a schematic diagram illustrating the operation of the present invention.

[0019] Figure 5 for Figure 4 Detailed view of section B in the middle.

[0020] Figure 6 This invention relates to a novel front-end module.

[0021] Among them: 1-Disassembly mechanism, 10-Gear ring, 11-Annular platform, 110-Unloading notch, 12-Slewing bearing, 13-Main gear, 14-Servo motor, 2-Operating platform, 20-Upper platform, 200-Bearing seat, 21-Lower platform, 22-Supporting component, 3-Lifting mechanism, 30-Base, 31-Supporting platform, 32-Guide column one, 33-Hydraulic cylinder, 4-Unloading mechanism, 40-Unloading platform, 41-Guide column two, 42-Reset spring, 43-Enclosure, 44-Negative pressure suction tube, 45-Positioning protrusion, 5-Adsorption equipment, 6-Magnetic plate; 100-Base, 101-Bottom cover, 102-Filter screen, 103-Elastic top support assembly, 104-Unloading trough, 105-Unloading protrusion, 106-Front module, 107-Top cover, 108-Air inlet, 109-Air outlet. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] Please see Figures 1 to 6 The present invention provides a technical solution: a filter replacement device for a natural gas pre-module of a heavy-duty gas turbine, including a disassembly mechanism 1 for removing the filter 102 from the filter kit. The disassembly mechanism 1 removes the filter 102 from the pre-module by rotation. The disassembly mechanism 1 includes a gear ring 10, an annular platform 11, a slewing bearing 12, and a drive mechanism. The gear ring 10 and the slewing bearing 12 are respectively installed on the outer ring and inner ring of the annular platform 11. The slewing bearing 12 is installed on the bearing seat 200 provided on the upper part of the upper platform 20. The gear ring 10 is connected to a drive mechanism that can drive the gear ring 10 to rotate. The upper end of the annular platform 11 is provided with a discharge notch 110 that cooperates with the discharge protrusion 105 at the lower end of the filter screen kit. There are six discharge notches 110 and three or six discharge protrusions 105.

[0024] The filter replacement device for the natural gas pre-processing module of a heavy-duty gas turbine in this invention also includes an operating platform 2 for installing and dismantling mechanism 1, and the dismantling mechanism 1 is installed on the upper part of the operating platform 2. Specifically, the operating platform 2 includes an upper platform 20, a lower platform 21, and a support member 22 connecting the upper platform 20 and the lower platform 21.

[0025] The filter replacement device for the natural gas pre-processing module of a heavy-duty gas turbine in this invention also includes a lifting mechanism 3 for driving the operating platform 2 to move up and down. The operating platform 2 is installed above the lifting mechanism 3 and the bottom of the operating platform 2 is connected to the output end of the lifting mechanism 3. The lifting mechanism 3 includes a base 30, a support platform 31, a guide column 32, and a hydraulic cylinder 33. The support platform 31 is installed inside the base 30. The upper end of the guide column 32 is connected to the lower part of the operating platform 2, and the lower end of the guide column 32 passes through the support platform 31 and is connected to a limit nut. The hydraulic cylinder 33 is installed on the support platform 31 and its output end is connected to the lower part of the operating platform 2.

[0026] The filter replacement device for the natural gas pre-processing module of a heavy-duty gas turbine in this invention also includes a discharge mechanism 4 for removing the bottom cover 101 of the filter kit. The discharge mechanism 4 is installed in the operating platform 2 and can disassemble the bottom cover 101 during the rotation of the filter kit. Below the discharge mechanism 4, there is also an adsorption device 5 for driving the discharge platform 40 in the discharge mechanism 4 to move down. The discharge mechanism 4 includes a discharge platform 40 and an elastic support assembly for supporting the discharge platform 40. The elastic support assembly is installed on the lower platform 21. The upper end of the discharge platform 40 is provided with two positioning protrusions 45 that cooperate with the discharge groove 104 provided at the bottom of the bottom cover 101. The elastic support assembly includes a second guide post 41 and a return spring 42. The upper end of the second guide post 41 is connected to the lower part of the unloading platform 40, and the lower end of the second guide post 41 passes through the lower platform 21 and is connected to a limit nut. The return spring 42 is sleeved on the second guide post 41 between the unloading platform 40 and the lower platform 21.

[0027] In this embodiment, the drive mechanism includes a main gear 13 and a servo motor 14. The main gear 13 meshes with the gear ring 10, and the servo motor 14 is mounted on the upper platform 20 and its output end is connected to the main gear 13.

[0028] In this embodiment, the adsorption device 5 uses an electromagnet, and a magnetic plate 6 that cooperates with the electromagnet is installed at the lower end of the unloading platform 40. When the unloading mechanism 4 removes the bottom cover 101, the bottom cover 101 will still be attached to the bottom of the filter kit due to the action of the return spring 42. Therefore, the unloading platform 40 can be moved down by means of the electromagnet adsorbing the magnetic plate 6, and the separation of the bottom cover 101 and the filter kit can be completed.

[0029] In addition, to prevent impurities in the ash collection chamber from scattering everywhere after the bottom cover 101 is opened, a ring of baffles 43 is installed at the upper end of the unloading platform 40 to collect the impurities discharged from the ash collection chamber. Each of the four side walls of the baffles 43 is equipped with a negative pressure suction pipe 44 connected to a negative pressure vacuum cleaner to suck up the impurities and reduce pollution to the operating environment.

[0030] The filter kit of the present invention includes a base 100, a bottom cover 101, a filter 102, and an elastic top support assembly 103. The bottom cover 101 is threaded to the lower end of the base 100. The elastic top support assembly 103 is installed inside the base 100, and the filter 102 is disposed at the upper end of the elastic top support assembly 103. A dust collection cavity is formed in the filter kit between the lower end of the filter 102 and the bottom cover 101. The base 100 is installed at the lower end of the front module 106. The upper end of the front module 106 is open and a top cover 107 is installed. An air inlet 108 and an air outlet 109 are respectively provided on both sides of the front module 106.

[0031] The working process and principle of this invention are as follows: First, move the device directly below the front module, then activate the hydraulic cylinder 33 to raise the entire operating platform 2 to a predetermined height, aligning the unloading notch 110 at the top of the annular platform 11 with the unloading protrusion 105. Simultaneously, with the help of the return spring 42, the positioning protrusion 45 at the top of the unloading platform 40 also aligns with the unloading groove 104 on the bottom cover 101. Next, activate the servo motor 14, which drives the gear ring 10 and filter screen kit to rotate via the main gear 13, removing the filter screen kit and filter screen 102. The bottom cover 101 is then removed from the unloading platform 40, completing the removal and replacement of the filter screen 102 and the bottom cover 101 in one go.

[0032] Next, the electromagnet is activated. The electromagnet uses magnetic force to attract the unloading platform 40 and move it down a certain distance. The bottom cover 101 is separated from the filter screen kit. The impurities in the dust collection chamber are discharged onto the unloading platform 40 and blocked by the enclosure 43. The negative pressure vacuum cleaner is turned on and uses negative pressure to suck away the impurities.

[0033] Based on the above, the present invention can disassemble the filter 102 and the bottom cover 101 in the filter kit in one step. On the one hand, it facilitates the replacement of the filter 102, and on the other hand, it facilitates the discharge of large particles of impurities in the dust collection chamber below the filter 102, thereby improving the efficiency of replacing the filter 102 in the pre-module. In addition, by setting a floating unloading mechanism 4 below the disassembly mechanism 1 to cooperate with it, the bottom cover 101 can be removed by the rotation of the disassembly mechanism 1 while the disassembly mechanism 1 disassembles the filter 102 without the need for additional power equipment. This simplifies the structural design and reduces costs.

[0034] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. A filter replacement device for a natural gas pre-treatment module of a heavy-duty gas turbine, characterized in that, Includes a disassembly mechanism (1) for removing the filter (102) from the filter kit, the disassembly mechanism (1) removing the filter (102) from the front module by rotation; An operating platform (2) for installing and dismantling mechanism (1), wherein the dismantling mechanism (1) is installed on the upper part of the operating platform (2); A lifting mechanism (3) for driving the operating platform (2) to move up and down, wherein the operating platform (2) is installed above the lifting mechanism (3) and the bottom of the operating platform (2) is connected to the output end of the lifting mechanism (3); The unloading mechanism (4) is used to remove the bottom cover (101) in the filter kit. The unloading mechanism (4) is installed in the operating platform (2) and can remove the bottom cover (101) during the rotation of the filter kit. An adsorption device (5) is also installed below the unloading mechanism (4) to drive the unloading platform (40) in the unloading mechanism (4) to move down. The operating platform (2) includes an upper platform (20), a lower platform (21), and a support member (22) connecting the upper platform (20) and the lower platform (21); The disassembly mechanism (1) includes a gear ring (10), an annular platform (11), a slewing bearing (12), and a drive mechanism; The gear ring (10) and the slewing bearing (12) are respectively installed on the outer ring and inner ring of the annular platform (11). The slewing bearing (12) is installed on the bearing seat (200) provided on the upper part of the upper platform (20). The gear ring (10) is connected to a drive mechanism that can drive the gear ring (10) to rotate. The upper end of the annular platform (11) is provided with a discharge notch (110) that cooperates with the discharge protrusion (105) at the lower end of the filter screen kit. The unloading mechanism (4) includes an unloading platform (40) and an elastic support assembly for supporting the unloading platform (40). The elastic support assembly is installed on the lower platform (21). The upper end of the unloading platform (40) is provided with two positioning protrusions (45) that cooperate with the unloading groove (104) provided at the bottom of the bottom cover (101). The elastic support assembly includes a second guide post (41) and a return spring (42). The upper end of the second guide post (41) is connected to the lower part of the unloading platform (40), and the lower end of the second guide post (41) passes through the lower platform (21) and is connected to a limit nut. The return spring (42) is sleeved on the second guide post (41) between the unloading platform (40) and the lower platform (21).

2. The filter replacement device for a natural gas pre-treatment module of a heavy-duty gas turbine according to claim 1, characterized in that, The drive mechanism includes a main gear (13) and a servo motor (14). The main gear (13) meshes with a gear ring (10). The servo motor (14) is mounted on the upper platform (20) and its output end is connected to the main gear (13).

3. A filter replacement device for a natural gas pre-treatment module of a heavy-duty gas turbine according to claim 1, characterized in that, The lifting mechanism (3) includes a base (30), a support platform (31), a guide column (32), and a hydraulic cylinder (33). The support platform (31) is installed inside the base (30). The upper end of the guide column (32) is connected to the lower part of the operating platform (2). The lower end of the guide column (32) passes through the support platform (31) and is connected to a limit nut. The hydraulic cylinder (33) is installed on the support platform (31) and its output end is connected to the lower part of the operating platform (2).

4. A filter replacement device for a natural gas pre-treatment module of a heavy-duty gas turbine according to claim 1, characterized in that, The adsorption device (5) uses an electromagnet, and a magnetic plate (6) that cooperates with the electromagnet is installed at the lower end of the unloading platform (40).

5. A filter replacement device for a natural gas pre-treatment module of a heavy-duty gas turbine according to claim 1, characterized in that, The upper end of the unloading platform (40) is also equipped with a ring of fencing (43), and a negative pressure suction pipe (44) is installed on each of the four side walls of the fencing (43).

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