Filter screen replacement device for natural gas front module of heavy-duty gas turbine

Abstract

The invention discloses a filter screen replacement device for a natural gas front module of a heavy duty gas turbine, and relates to the field of intelligent equipment. Comprising a dismounting mechanism used for dismounting a filter screen in the filter screen suite, an operation platform used for mounting the dismounting mechanism, a lifting mechanism used for driving the operation platform to move up and down, and a discharging mechanism used for dismounting a bottom cover in the filter screen suite. The filter screen and the bottom cover in the filter screen suite can be detached at a time, on one hand, the filter screen is convenient to replace, on the other hand, the filter screen suite can be detached, on the other hand, the filter screen suite can be detached, and on the other hand, the filter screen suite can be detached, so that the filter screen suite can be conveniently replaced, and on the other hand, the filter screen suite can be conveniently detached. And on the other hand, large-particle impurities in the dust collection cavity below the filter screen can be conveniently discharged, and the replacement efficiency of the filter screen in the front module is improved.

Description

Technical Field

[0001] The present invention relates to the field of intelligent equipment, and in particular to a filter replacement device for a natural gas pre-module of a heavy-duty gas turbine. Background Art

[0002] At present, in the process of gas turbine operation, in order to filter solid particles in natural gas to prevent erosion, scaling and clogging of the gas nozzle, the traditional solution for gas turbine terminal filtration is to use Y-type filter as the pre-module, but the filter is difficult to replace, time-consuming and labor-intensive. For this reason, our company has designed a pre-module that can quickly replace the filter. While solving the above problem, another problem also arises, that is, how to achieve the rapid disassembly of the new pre-module, so it is necessary to design a replacement device. Summary of the invention

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

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a filter screen replacement device for a natural gas pre-module of a heavy-duty gas turbine, comprising a disassembly mechanism for removing a filter screen in a filter screen kit, wherein the disassembly mechanism removes the filter screen from the pre-module in a rotating manner;

[0005] An operating platform for installing a disassembly mechanism, wherein the disassembly mechanism is installed on the upper part of the operating platform;

[0006] 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;

[0007] A discharge mechanism for removing the bottom cover of the filter kit is installed in the operating platform and can remove the bottom cover during the rotation of the filter kit. An adsorption device for driving the discharge platform in the discharge mechanism to move downward is also installed below the discharge mechanism.

[0008] Furthermore, the operating platform includes an upper platform, a lower platform, and a support member connected between the upper platform and the lower platform.

[0009] Furthermore, the disassembly mechanism includes a gear ring, an annular platform, a slewing bearing and a driving mechanism;

[0010] The gear ring and the slewing bearing are respectively installed on the outer ring and the inner ring of the annular platform. The slewing bearing is installed on the bearing seat arranged on the upper part of the upper platform. The gear ring is connected to a driving mechanism that can drive the gear ring to rotate. The upper end of the annular platform is provided with a discharge notch that matches the discharge protrusion at the lower end of the filter kit.

[0011] Furthermore, the driving mechanism includes a main gear and a servo motor, the main gear is meshed with a gear ring, the servo motor is mounted on the upper platform and an output end of the servo motor is connected to the main gear.

[0012] Furthermore, the lifting mechanism includes a machine base, a support platform, a guide column 1 and a hydraulic cylinder. The support platform is installed inside the machine base, the upper end of the guide column 1 is connected to the lower part of the operating platform, the lower end of the guide column 1 passes through the support platform and is connected to a limiting nut, and the hydraulic cylinder is installed on the support platform and its output end is connected to the lower part of the operating platform.

[0013] Furthermore, the unloading mechanism includes a unloading platform and an elastic support component for supporting the unloading platform, the elastic support component 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.

[0014] Furthermore, the elastic support assembly includes a guide column 2 and a return spring, the upper end of the guide column 2 is connected to the lower part of the unloading platform, the lower end of the guide column 2 passes through the lower platform and is connected to a limiting nut, and the return spring is sleeved on the guide column 2 between the unloading platform and the lower platform.

[0015] Furthermore, the adsorption device adopts an electromagnet, and a magnetic plate matching the electromagnet is installed at the lower end of the unloading platform.

[0016] Furthermore, a circle of enclosure is installed at the upper end of the unloading platform, and a negative pressure suction pipe is installed on each of the four side walls of the enclosure.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention can realize the disassembly of the filter screen and the bottom cover in the filter screen kit at one time, which is convenient for the replacement of the filter screen on the one hand, and also convenient for the discharge of large particles of impurities in the ash collecting chamber below the filter screen on the other hand, thereby improving the efficiency of the filter screen replacement in the front module.

[0019] 2. The present invention provides a floating unloading mechanism coordinated with the disassembly mechanism below the disassembly mechanism. Without adding any additional power equipment, the bottom cover can be removed by rotating the disassembly mechanism while the filter is being removed, thereby simplifying the structural design and reducing the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the front view of the present invention.

[0021] Figure 2 It is a structural schematic diagram of the present invention.

[0022] Figure 3 for Figure 2Partial detail of point A in the middle.

[0023] Figure 4 It is a working schematic diagram of the present invention.

[0024] Figure 5 for Figure 4 Partial detail of point B in the middle.

[0025] Figure 6 It is a new front module involved in the present invention.

[0026] Among them: 1-disassembly mechanism, 10-gear ring, 11-annular platform, 110-unloading gap, 12-slewing bearing, 13-main gear, 14-servo motor, 2-operating platform, 20-upper platform, 200-bearing seat, 21-lower platform, 22-support, 3-lifting mechanism, 30-machine base, 31-support platform, 32-guide column 1, 33-hydraulic cylinder, 4-unloading mechanism, 40-unloading platform, 41-guide column 2, 42-reset spring, 43-enclosure, 44-negative pressure suction pipe, 45-positioning protrusion, 5-adsorption equipment, 6-magnetic plate;

[0027] 100-base, 101-bottom cover, 102-filter, 103-elastic top support assembly, 104-discharge chute, 105-discharge protrusion, 106-front module, 107-top cover, 108-air inlet, 109-air outlet. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0029] See also Figures 1 to 6 The present invention provides a technical solution: a filter replacement device for a natural gas front module of a heavy-duty gas turbine, comprising a disassembly mechanism 1 for removing a filter 102 in a filter kit, wherein the disassembly mechanism 1 removes the filter 102 from the front module in a rotating manner, and the disassembly mechanism 1 comprises a gear ring 10, an annular platform 11, a slewing bearing 12 and a driving mechanism;

[0030] The ring gear 10 and the slewing bearing 12 are respectively installed on the outer ring and the inner ring of the annular platform 11. The slewing bearing 12 is installed on the bearing seat 200 arranged on the upper part of the upper platform 20. The ring gear 10 is connected to a driving mechanism that can drive the ring gear 10 to rotate. The upper end of the annular platform 11 is provided with a discharge notch 110 that matches the discharge protrusion 105 at the lower end of the filter kit. The number of the discharge notches 110 is six, and the number of the discharge protrusions 105 can be three or six.

[0031] The filter replacement device for the natural gas pre-module of a heavy-duty gas turbine in the present invention also includes an operating platform 2 for installing and disassembling a mechanism 1, and the disassembly 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 connected between the upper platform 20 and the lower platform 21.

[0032] The filter replacement device for the natural gas pre-module of a heavy-duty gas turbine in the present 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, the lower end of the guide column 32 passes through the support platform 31 and is connected to a limiting 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.

[0033] The filter screen replacement device for the natural gas pre-module of a heavy-duty gas turbine in the present invention further includes a discharge mechanism 4 for removing the bottom cover 101 in the filter screen set, the discharge mechanism 4 is installed in the operating platform 2 and can remove the bottom cover 101 during the rotation of the filter screen set, and an adsorption device 5 for driving a discharge platform 40 in the discharge mechanism 4 to move downward is also installed below the discharge mechanism 4, the discharge mechanism 4 includes a discharge platform 40 and an elastic support component for supporting the discharge platform 40, the elastic support component is installed on the lower platform 21, and the upper end of the discharge platform 40 is provided with two positioning protrusions 45 that match the discharge groove 104 provided at the bottom of the bottom cover 101;

[0034] The elastic support assembly includes a guide column 41 and a reset spring 42. The upper end of the guide column 41 is connected to the lower part of the unloading platform 40. The lower end of the guide column 41 passes through the lower platform 21 and is connected to a limiting nut. The reset spring 42 is sleeved on the guide column 41 between the unloading platform 40 and the lower platform 21.

[0035] In this embodiment, the driving mechanism includes a main gear 13 and a servo motor 14 . The main gear 13 is meshed with the ring gear 10 . The servo motor 14 is mounted on the upper platform 20 and the output end of the servo motor 14 is connected to the main gear 13 .

[0036] In this embodiment, the adsorption device 5 adopts an electromagnet, and a magnetic plate 6 cooperating with the electromagnet is installed at the lower end of the unloading platform 40. When the unloading mechanism 4 removes the bottom cover 101, due to the action of the reset spring 42, the bottom cover 101 will still be attached to the bottom of the filter kit. Therefore, the unloading platform 40 can be moved down by means of the electromagnet to adsorb the magnetic plate 6, and the bottom cover 101 can be separated from the filter kit.

[0037] In addition, in order to prevent the impurities in the ash collecting chamber from scattering everywhere after the bottom cover 101 is opened, a circle of enclosure 43 is also installed at the upper end of the unloading platform 40 for collecting impurities discharged from the ash collecting chamber. The four side walls of the enclosure 43 are each installed with a negative pressure suction pipe 44 connected to a negative pressure vacuum cleaner for sucking away impurities and reducing pollution to the operating environment.

[0038] The filter kit in 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 threadedly connected to the lower end of the base 100, the elastic top support assembly 103 is installed in the base 100, and the filter 102 is arranged at the upper end of the elastic top support assembly 103. An ash collecting chamber 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 installed with a top cover 107. The front module 106 is provided with an air inlet 108 and an air outlet 109 on both sides.

[0039] The working process and principle of the present invention are as follows:

[0040] First, move the device to the bottom of the front module, then start the hydraulic cylinder 33, lift the operating platform 2 as a whole to a predetermined height, and align the unloading notch 110 at the upper end of the annular platform 11 with the unloading notch 110. At the same time, by the action of the return spring 42, the unloading protrusion 105 at the upper end of the unloading platform 40 is also aligned with the unloading groove 104 on the bottom cover 101. Then start the servo motor 14, and drive the ring gear 10 and the filter kit to rotate by the main gear 1313, remove the filter kit and the filter 102, and the bottom cover 101 is removed from the unloading platform 40, and the disassembly and replacement of the filter 102 and the bottom cover 101 are completed at one time.

[0041] Next, the electromagnet is started, and the electromagnet uses magnetic force to absorb and move the unloading platform 40 downward for a distance, the bottom cover 101 is separated from the filter kit, the impurities in the ash collecting chamber are discharged to the unloading platform 40 and blocked by the enclosure 43, and the negative pressure vacuum cleaner is turned on to suck away the impurities using negative pressure.

[0042] Based on the above, the present invention can realize the disassembly of the filter 102 and the bottom cover 101 in the filter kit at one time, which is convenient for the replacement of the filter 102 on the one hand, and convenient for the discharge of large particles of impurities in the ash collecting chamber below the filter 102 on the other hand, thereby improving the efficiency of replacing the filter 102 in the front module; in addition, by providing a floating unloading mechanism 4 cooperating with the disassembly mechanism 1 below the disassembly mechanism 1, without adding additional power equipment, the filter 102 can be removed by the disassembly mechanism 1 while the bottom cover 101 can be removed by means of the rotation of the disassembly mechanism 1, thereby simplifying the structural design and reducing the cost.

[0043] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A filter replacement device for a natural gas pre-module of a heavy-duty gas turbine, characterized in that: It comprises a disassembly mechanism (1) for removing a filter (102) in a filter (102) kit, wherein the disassembly mechanism (1) removes the filter (102) from the front module by rotating; An operating platform (2) for installing a disassembly mechanism (1), wherein the disassembly 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); A discharge mechanism (4) for discharging a bottom cover (101) in a filter screen (102) kit, wherein the discharge mechanism (4) is installed in an operating platform (2) and is capable of disassembling the bottom cover (101) during the rotation of the filter screen (102) kit, and an adsorption device (5) for driving a discharge platform (40) in the discharge mechanism (4) to move downward is also installed below the discharge mechanism (4).

2. A filter screen replacement device for a natural gas pre-module of a heavy-duty gas turbine according to claim 1, characterized in that: The operating platform (2) comprises an upper platform (20), a lower platform (21), and a support member (22) connected between the upper platform (20) and the lower platform (21).

3. A filter screen replacement device for a natural gas pre-module of a heavy-duty gas turbine according to claim 2, characterized in that: The disassembly mechanism (1) comprises a gear ring (10), an annular platform (11), a slewing bearing (12) and a driving mechanism; The gear ring (10) and the slewing bearing (12) are respectively mounted on the outer ring and the inner ring of the annular platform (11); the slewing bearing (12) is mounted on a bearing seat (200) arranged on the upper part of the upper platform (20); the gear ring (10) is connected to a driving mechanism capable of driving the gear ring (10) to rotate; and a discharge notch (110) is provided at the upper end of the annular platform (11) to match a discharge protrusion (105) at the lower end of the filter screen (102) kit.

4. The filter screen replacement device for a natural gas pre-module of a heavy-duty gas turbine according to claim 2, characterized in that: The driving mechanism comprises a main gear (13) and a servo motor (14), wherein the main gear (13) is meshed with the ring gear (10), the servo motor (14) is mounted on the upper platform (20) and the output end of the servo motor (14) is connected to the main gear (13).

5. The filter screen replacement device for a natural gas pre-module of a heavy-duty gas turbine according to claim 1, characterized in that: The lifting mechanism (3) comprises a machine base (30), a support platform (31), a guide column (32) and a hydraulic cylinder (33); the support platform (31) is installed inside the machine 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).

6. The filter screen replacement device for a natural gas pre-module of a heavy-duty gas turbine according to claim 2, characterized in that: The unloading mechanism (4) comprises a unloading platform (40) and an elastic support component for supporting the unloading platform (40), wherein the elastic support component is mounted on the lower platform (21), and 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).

7. A filter screen replacement device for a natural gas pre-module of a heavy-duty gas turbine according to claim 6, characterized in that: The elastic support assembly comprises a second guide column (41) and a return spring (42), wherein the upper end of the second guide column (41) is connected to the lower part of the unloading platform (40), the lower end of the second guide column (41) passes through the lower platform (21) and is connected to a limit nut, and the return spring (42) is sleeved on the second guide column (41) between the unloading platform (40) and the lower platform (21).

8. The filter screen replacement device for a natural gas pre-module of a heavy-duty gas turbine according to claim 6, characterized in that: The adsorption device (5) adopts an electromagnet, and a magnetic plate (6) matching the electromagnet is installed at the lower end of the unloading platform (40).

9. The filter screen replacement device for a natural gas pre-module of a heavy-duty gas turbine according to claim 7, characterized in that: A circle of enclosure (43) is also installed at the upper end of the unloading platform (40), and a negative pressure suction pipe (44) is installed on each of the four side walls of the enclosure (43).

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