A box type natural gas generator set

Abstract

This invention discloses a box-type natural gas generator set, including a box shell, a generator set body, a heat dissipation box, an exhaust boiler, a filtration system, and an intake fan; the generator set body, the intake fan, and the filtration system are sequentially arranged inside the box shell; the heat dissipation box and the exhaust boiler are located on the top of the box shell; the filtration system includes a pair of vertically arranged filter structures, a lifting structure, a dust removal component, and multiple pairs of support rods fixedly connected to the bottom of the box shell; each filter structure is slidably connected between two pairs of support rods, and both ends extend to the outside of the support rods and are fixedly connected to a fixing plate; the lifting structure includes two pairs of lifting plates, each pair of lifting plates being correspondingly arranged below the extension portion of a pair of filter structures to drive the pair of filter structures to rise and fall alternately; a dust collection groove is fixedly connected to the side of the middle part of each pair of support rods, and the dust removal component is arranged between multiple pairs of support rods and located above the dust collection groove, and the dust removal component can slide between multiple pairs of support rods.

Description

Technical Field

[0001] This invention relates to the field of natural gas generator sets, specifically a box-type natural gas generator set. Background Technology

[0002] CN214577369U discloses a snap-fit ​​box-type natural gas generator set, including a box-type machine room and a natural gas generator set, wherein the natural gas generator set is located inside the box-type machine room; a shock absorber is fixedly connected to the lower surface of the natural gas generator set by bolts; a heat dissipation water tank, an exhaust pipe, a flue gas boiler and a silencer are fixedly connected to the top of the outer wall of the box-type machine room by bolts.

[0003] While the aforementioned generator sets, when used in power plants in oil and gas extraction areas, offer advantages such as rapid installation, convenient transportation, and space saving, they cannot completely prevent dust from entering the containerized generator room. Especially in large industrial areas like oil and gas extraction sites, the amount of suspended dust, sand, and other hard particles in the air is significantly higher than in general environments. Natural gas generator sets rely on the combustion of a mixture of natural gas and air; when a large amount of dust enters the generator set, it can easily damage internal components and reduce combustion efficiency. Existing dust removal methods typically use filtration equipment, but in dusty industrial areas, frequent manual cleaning or replacement is required to maintain filtration effectiveness. If not replaced promptly, the accumulation of dust and sand can clog the air inlet of the filtration equipment, leading to insufficient gas flow into the containerized generator room, affecting combustion efficiency. Furthermore, replacement is difficult to guarantee effective gas filtration, making operation inconvenient and increasing economic costs. Therefore, existing filtration equipment is insufficient to meet the requirements. This invention provides a containerized natural gas generator set. Summary of the Invention

[0004] The purpose of this invention is to provide a box-type natural gas generator set to solve the problem of inconvenient gas dust filtration mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A box-type natural gas generator set includes a box shell, a generator set body, a heat dissipation box, an exhaust boiler, a filtration system, and an intake fan; the generator set body, the intake fan, and the filtration system are sequentially arranged inside the box shell; the heat dissipation box and the exhaust boiler are located on the top of the box shell and are connected to the generator set body through pipes; an air inlet is provided at one end of the box shell, and the filtration system is located near the air inlet; exhaust outlets are provided on both sides near the other end of the box shell.

[0007] The filtration system includes a pair of vertically arranged filter structures, a lifting structure, a dust removal component, and multiple pairs of support rods fixedly connected to the bottom of the housing. Each filter structure is slidably connected between two pairs of support rods, and its two ends extend to the outside of the support rods and are fixedly connected to a fixing plate. The lifting structure is located on the outside of the support rods and includes two pairs of lifting plates. Each pair of lifting plates is correspondingly located below the extension of a pair of filter structures to drive the pair of filter structures to rise and fall alternately. A dust collection trough is fixedly connected to the middle side of each pair of support rods. The dust removal component is located between the multiple pairs of support rods and above the dust collection trough, and the dust removal component can slide between the multiple pairs of support rods.

[0008] Preferably, any filter structure includes a pair of filter components, and any filter component includes a filter element, a bottom counterweight rod, and a top counterweight rod; both sides near the edge of the filter element have sliding grooves in the transverse and longitudinal directions; the bottom counterweight rod and the top counterweight rod have grooves in the middle that match the filter element, and steps are formed on the groove walls to match the sliding grooves, so as to slide and connect with the upper and lower sides of the filter element respectively.

[0009] Preferably, the top counterweight rod extends outward at both ends to the outside of a pair of support rods and is fixedly connected to the fixing plate; the pore size of the pair of filter elements in each pair of filter components is different to filter dust of different diameters; a drag-reducing strip is also fixedly connected to the top of the top counterweight rod.

[0010] Preferably, each support rod has a longitudinal sliding groove in the middle, and the filter element, bottom counterweight rod and top counterweight rod are slidably connected to the sliding groove on both sides; a limiting rod is also provided on one side of the support rod, and the limiting rod passes through the side of the support rod and is slidably connected to the longitudinal sliding groove of the filter element.

[0011] Preferably, the lifting structure includes two pairs of meshing threaded rods, a pair of steering gears, a lifting motor, and a connecting rod; the two pairs of threaded rods are respectively disposed on the outside of the support rod; the opposite sides of the pair of steering gears are connected to the two ends of the connecting rod, the top of the steering gear is connected to one of the threaded rods in each pair, and the other threaded rod is rotatably connected to the bottom inside the housing; each pair of threaded rods is connected to the support rod near its top end; the lifting motor is fixedly connected to the top end of any threaded rod.

[0012] Preferably, each pair of lifting plates is arranged on the same side and threadedly connected to each pair of threaded rods, and slidably connected to the corresponding support rod; a pair of filter structures are located on the upper and lower sides of the dust collection tank; one of the lifting plates is located near the top of the corresponding threaded rod, and the extension of the filter structure located on the upper side of the dust collection tank is placed on the upper side of the pair of lifting plates; the other is located near the bottom of the corresponding threaded rod, so that the distance between the two pairs of lifting plates matches the height of a pair of filter structures.

[0013] Preferably, the dust removal assembly includes a dust removal plate, multiple pairs of dust removal brushes fixedly connected to the lower side of the corresponding dust removal plate, a screw, and a moving motor. The screw passes through and is threadedly connected to the dust removal plate, and both ends of the screw extend to the outside of the support rod. One end is fixedly connected to the drive end of the moving motor. Limiting rings are rotatably connected to the outer walls of the screw near both ends, and the limiting rings are fixedly connected to the corresponding support rods.

[0014] Preferably, the dust removal plate has multiple pairs of stop grooves for matching drag-reducing strips, and the top of the stop grooves extends upward to form a rectangular hole; each stop groove is correspondingly set on the upper side of the middle of the top of each pair of dust removal brushes.

[0015] Preferably, each drag-reducing strip has an avoidance notch; a telescopic rod is also provided between each pair of support rods, one end of which is rotatably connected to the avoidance notch, and the other end passes through a rectangular hole and is rotatably connected to the sliding groove; the diameter of the telescopic rod is larger than the gap between each pair of dust removal brushes, and is used to clean the dust removal brushes.

[0016] Preferably, a pair of L-shaped reinforcing rods are provided on both sides of the intake fan. The bottom of the vertical part of the reinforcing rod is fixedly connected to the bottom of the housing, and the horizontal part of the reinforcing rod is fixedly connected to the top of the support rod.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] This application achieves automatic alternating lifting and lowering of a pair of filter structures while ensuring the filtration of dust and sand particles through the cooperation of a lifting structure, two pairs of lifting plates, and a pair of filter structures. The two pairs of lifting plates are positioned at the ends of corresponding threaded rods, ensuring the distance between them matches the height of the filter structures. When the lifting plate above the dust collection trough descends, the upper filter structure descends, and the lifting plate below the dust collection trough simultaneously rises towards the lower filter structure. After one filter structure has completely descended, the lower lifting plate moves up to contact the extension of the lower filter structure and rises, causing the rising filter structure to clean itself, while the descending filter structure begins filtering dust and sand particles. This achieves alternating lifting and lowering without affecting the filtration effect, eliminating the need for frequent filter replacements, extending the service life of the filter equipment, and is easy to operate, requiring only control of the lifting motor.

[0019] By combining the dust removal components and the telescopic rod, both the rising filter structure and the dust removal brushes can be cleaned. The dust removal brushes move back and forth across the filter screen to remove dust. Simultaneously, the telescopic rod on the descending filter structure actuates the corresponding dust removal brushes, clearing dust from them. When the descending filter structure rises again, it achieves a more thorough cleaning.

[0020] Disassembly is convenient. The bottom and top counterweight rods are slidably connected to the filter element. Simply pull the limiting plate out of the limiting groove on the side of the support rod to pull the filter element out of the sliding groove of the support rod, which facilitates the maintenance of the filtration equipment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is an internal side view of the housing of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the filtration system of the present invention;

[0024] Figure 4 This is a schematic diagram of the connection between the filter structure and the lifting structure of the present invention;

[0025] Figure 5 This is an exploded view of the connection between the filter structure and the support rod of the present invention;

[0026] Figure 6 This is a structural disassembly diagram of the filter structure of the present invention;

[0027] Figure 7 For the present invention Figure 6 Enlarged view of the disassembled bottom counterweight rod and filter frame structure at point A;

[0028] Figure 8 For the present invention Figure 6 Enlarged view of the disassembled structure of the top counterweight rod and filter frame at point B;

[0029] Figure 9 This is a disassembled view of the structure at the support rod and the limiting rod of the present invention;

[0030] Figure 10 This is a schematic diagram of the connection between the threaded rod and the steering gear in this invention;

[0031] Figure 11 This is a schematic diagram of the connection between the fan and the housing of the present invention;

[0032] Figure 12 For the present invention Figure 11 Enlarged view of the connection between the threaded rod and the support rod at point C;

[0033] Figure 13 This is an anatomical diagram of the dust removal component and support rod structure of the present invention;

[0034] Figure 14 For the present invention Figure 13 Enlarged view of the structure of the connection between a pair of threaded rods at point D.

[0035] In the diagram: 1. Housing 1, 11. Air inlet 12, 12. Generator set body 2, 3. Radiator box 3, 4. Filtration system 5, 51. Filtration structure 51, 511. Filter element 511, 5111. Filter screen 5111, 5112. Bottom counterweight rod 512, top counterweight rod 513, drag reducing strip 5131, clearance notch 5132, lifting structure 52, threaded rod 521, steering gear 522, lifting plate 523, lifting motor 524, dust removal assembly 53, dust removal plate 531, stop groove 5311, dust removal brush 532, screw 533, moving motor 534, support rod 54, sliding groove 541, bottom rod 542, limit groove 543, limit rod 544, dust collection groove 545, guide groove 546, dust baffle 547, telescopic rod 55, fixed plate 56, air intake fan 6, reinforcing rod 7. Detailed Implementation

[0036] Example 1:

[0037] Please see Figures 1-14 The present invention provides a technical solution: such as Figures 1-3 As shown, a box-type natural gas generator set includes a casing 1, a generator set body 2, a heat dissipation box 3, an exhaust boiler 4, a filtration system 5, and an intake fan 6. The generator set body 2, the intake fan 6, and the filtration system 5 are located inside the casing 1 and arranged sequentially. The heat dissipation box 3 is filled with a cooling liquid. The heat dissipation box 3 and the exhaust boiler 4 are located on the top of the casing 1 and are connected to the generator set body 2 via pipes to dissipate heat from the generator set body 2 and exhaust exhaust gases, respectively.

[0038] An air inlet 11 is provided at the lower part of one end of the housing 1, and the filter system 5 is located near the air inlet 11; exhaust ports 12 are provided on both sides near the other end of the housing 1.

[0039] The filtration system 5 includes a pair of vertically arranged filter structures 51, a lifting structure 52, a dust removal assembly 53, and multiple pairs of support rods 54. The multiple pairs of support rods 54 are fixedly connected to the bottom of the housing 1. There is a gap between each pair of support rods 54. Each filter structure 51 corresponds to two pairs of support rods 54. In the example shown in the figure, the filter structure 51 is located between two pairs of support rods 54. Each filter structure 51 is located within the gap between the two pairs of support rods 54 and is slidably connected between them. Both ends extend to the outside of the support rods 54 and are fixedly connected to a fixing plate 56. The lifting structure 52 is located outside the pair of support rods 54. The lifting structure 52 includes two pairs of lifting plates 523. Each pair of lifting plates 523 is correspondingly located below the fixing plate 56 of the extended portion of the pair of filter structures 51, used to drive the pair of filter structures 51 to alternately rise and fall. A dust collection trough 545 is fixedly connected to the middle side of each pair of support rods 54. The dust removal component 53 is arranged between the multiple pairs of support rods 54 and above the dust collection trough 545. The dust removal component 53 can slide between the multiple pairs of support rods 54 to remove dust and clean the rising filter structure 51.

[0040] like Figures 3-9 As shown, each filter structure 51 includes a pair of filter components, and each filter component includes a filter element 511, a bottom counterweight rod 512, and a top counterweight rod 513. The filter element 511 includes a filter screen 5111 and a filter frame 5112, with the filter frame 5112 fixedly connected to the outside of the filter screen 5111. The filter frame 5112 has sliding grooves on both sides in the horizontal and vertical directions. The bottom counterweight rod 512 and the top counterweight rod 513 have grooves in their middle sections that match the filter frame 5112. The groove walls form steps that match the sliding grooves, allowing for slidable connection with the upper and lower sides of the filter frame 5112, respectively. The top counterweight rod 513 extends outwards at both ends to the outside of a pair of support rods 54 and is fixedly connected to a fixing plate 56. The filter screens 5111 in each pair of filter components have different pore sizes, filtering dust and sand particles of different diameters to enhance the filtration effect. The top of the top counterweight rod 513 is also fixedly connected to a drag-reducing strip 5131, which has a triangular cross-section.

[0041] Each support rod 54 has a longitudinal sliding groove 541 in the middle. The filter element 511, bottom counterweight rod 512, and top counterweight rod 513 are slidably connected to the sliding groove 541 on both sides. A bottom rod 542 is also fixedly connected between each pair of support rods 54. The bottom rod 542 is fixedly connected to the bottom of the housing 1 to enhance the stability of each pair of support rods 54. A pair of limiting grooves 543 communicating with the sliding groove 541 are also provided on the side of the support rod 54. The pair of limiting grooves 543 are symmetrically arranged along the middle of the support rod 54. A limiting rod 544 is also provided on one side of the support rod 54 corresponding to the limiting groove 543. One side of the limiting rod 544 passes through the limiting groove 543 and is slidably connected to the longitudinal sliding groove of the filter frame 5112 to limit the lateral movement of the filter frame 5112 between the support rods 54. The other side of the limiting rod 544 is bent to form an L-shaped cross section (see Figure 9 ), to be bolted to the side of the support rod 54.

[0042] like Figures 10-14 As shown, the lifting structure 52 includes two pairs of threaded rods 521, a pair of steering gears 522, a lifting motor 524, and a connecting rod; the two pairs of threaded rods 521 are respectively located on the outermost sides of the filter structure 51 and are located outside the support rod 54. Each pair of threaded rods 521 is meshed with each other near the bottom end (see...). Figure 14The outer wall near the top is fitted with a stabilizing plate and fixedly connected to the support rod 54. A pair of threaded rods 521 corresponds to a steering gear 522. The drive ends of a pair of steering gears 522 are fixedly connected via a connecting rod. One bottom end of each pair of threaded rods 521 is fixedly connected to the drive end at the top of the steering gear 522, and the meshing connection of the threaded rods 521 is located on the upper side of the steering gear 522. The other bottom end of each pair of threaded rods 521 is rotatably connected to the bottom inside the housing 1, and the steering gear 522 is fixedly connected to the bottom inside the housing 1. A lifting motor 524 is fixedly connected to the top of any threaded rod 521. The steering gear 522 is a conventional technique used to change the direction of force transmission. In this embodiment, the steering gear 522 has two vertically arranged drive ends for transmitting steering force. Through the transmission of the steering gear 522, the steering force can be changed between the vertical threaded rods 521 and the horizontal connecting rod. The specific structure of the steering gear 522 will not be described in detail here.

[0043] Two pairs of lifting plates 523 are correspondingly arranged on both sides of a pair of filter structures 51, and each pair of lifting plates 523 is arranged on the same side and threadedly connected to each pair of threaded rods 521. In the initial state (see...) Figure 4 A pair of filter structures 51 are located on the upper and lower sides of the dust collection trough 545, respectively. Each pair of lifting plates 523 are arranged vertically, with one lifting plate 523 positioned near the top of one of the corresponding threaded rods 521, and the extension plate 56 of the pair of top counterweight rods 513 inside the filter structure 51 located on the upper side of the dust collection trough 545 is placed on the upper side of the pair of lifting plates 523; the other lifting plate 523 is positioned near the bottom of the other corresponding threaded rod 521, so that the spacing between the pair of lifting plates 523 matches the height of the pair of filter structures 51. The filter structure 51 located on the lower side of the dust collection trough 545 is used to filter the air entering the housing 1. In each filter structure 51, at least one pair of support rods 54 has a guide groove 546 on its outer side. The lifting plate 523 extends into the guide groove 546 and slides within it. When the corresponding threaded rod 521 rotates, the extension of the lifting plate 523 within the guide groove 546 restricts the lifting plate 523 from rotating, thereby enabling the lifting plate 523 to rise and fall when the threaded rod 521 rotates, which in turn drives the corresponding fixed plate 56 and filter structure 51 to rise.

[0044] The dust removal assembly 53 includes a dust removal plate 531, multiple pairs of dust removal brushes 532, a screw 533, and a moving motor 534. The multiple pairs of dust removal brushes 532 are fixedly connected to the lower side of the corresponding dust removal plate 531. The screw 533 passes through and is threadedly connected to the dust removal plate 531. Both ends of the screw 533 extend to the outer side of the support rod 54, and one end is fixedly connected to the drive end of the moving motor 534. Limiting rings are rotatably connected to the outer wall of the screw 533 near both ends. The limiting rings are fixedly connected to the corresponding support rod 54 to provide support for the screw 533.

[0045] The bottom end of each pair of dust removal brushes 532 matches the cross section of the drag-reducing strip 5311. Multiple pairs of stop grooves 5311 matching the drag-reducing strips 5131 are provided on the dust removal plate 531. The top of the stop groove 5311 extends upward to form a rectangular hole. Each stop groove 5311 is correspondingly provided on the upper side of each pair of dust removal brushes 53.

[0046] Each drag-reducing strip 5131 has a clearance notch 5132. A telescopic rod 55 is also provided between each pair of support rods 54. One end of the telescopic rod 55 is rotatably connected to the clearance notch 5132, and the other end passes through a rectangular hole and is rotatably connected to the sliding groove 541. The diameter of the telescopic rod 55 is larger than the gap between each pair of dust removal brushes 532, and it is used to clean the dust removal brushes 532.

[0047] Please see Figures 13-14 A pair of L-shaped reinforcing rods 7 are provided on both sides of the intake fan 6. The bottom of the vertical part of the reinforcing rod 7 is fixedly connected to the bottom of the housing 1, and the horizontal part of the reinforcing rod 7 is fixedly connected to the top of the support rod 54; this improves the support strength of the multiple pairs of support rods 54 and ensures stable operation. A dust baffle 547 is provided on the top of one of the side walls of the dust collection trough 545 closest to the intake fan 6. This side wall is closer to the generator set 2 body. The dust baffle 547 extends upward to prevent dust from passing through from the top and flowing towards the generator set 2 body. The dust baffle 547 is bolted to the side of the vertical part of the reinforcing rod 7.

[0048] Working Principle: In the initial state, a pair of filter structures 51 are located on the upper and lower sides of the dust collection tank 545, respectively. While the generator set 2 is operating, the operator starts the intake fan 6 to provide air to the generator set 2. The gas enters the housing 1 through the intake port 11 and passes through a pair of filters 5111 in the lower filter structure 51 to filter dust particles of different diameters multiple times before flowing into the housing 1. Part of the gas flows to the generator set 2 to participate in combustion and power generation, and is discharged through the exhaust boiler 4; the other part of the gas passes through the generator set 2 and is discharged from the housing 1 through the exhaust port 12. The gas flowing through the generator set 2 also helps to cool and dissipate heat.

[0049] In the initial state, the filter structure 51 and the lifting plate 523 above the dust collection tank 545 are defined as the first filter structure 51 and the first lifting plate 523, respectively, and the filter structure 51 and the lifting plate 523 below the dust collection tank 545 are defined as the second filter structure 51 and the second lifting plate 523, respectively. When the filter screen 5111 of the second filter structure 51 on the lower side of the dust collection tank 545 needs to be cleaned, the second filter structure 51 and the first filter structure 51 alternately rise and fall to perform cleaning.

[0050] Specifically, the operator starts the lifting motor 524, which drives a pair of threaded rods 521 on the same side to rotate. Through the transmission of a pair of steering gears 522 and connecting rods, another pair of threaded rods 521 rotate synchronously, causing the first lifting plate 523 to descend. The first filter structure 51 located on the upper side of the lifting plate 523 follows the descent under the gravity of the corresponding top counterweight rod 513 and bottom counterweight rod 512. The corresponding telescopic rod 55 is stretched as the drag-reducing strip 5131 descends. At the same time, the second lifting plate 523 rises synchronously until the bottom counterweight rod 512 of the first filter structure 51 contacts the bottommost bottom rod 542, and the corresponding telescopic rod 55 stops stretching. At this time, the second lifting plate 523 rises to the lower side of the fixing plate 56 of the extension part of the second filter structure 51. As the threaded rod 521 continues to rotate, the first lifting plate 523 continues to descend, and the second lifting plate 523 drives the second filter mechanism 51 to rise. The corresponding telescopic rod 55 begins to retract during the rise of the drag-reducing strip 5131, until the drag-reducing strip 5131 of the top counterweight rod 513 of the second filter structure 51 matches the corresponding stop groove 5311, at which point the corresponding telescopic rod 55 stops retracting. At this point, the first filter structure 51 and the second filter structure 51 no longer overlap, and the second filter structure 51 and the first filter structure 51 complete alternating lifting and lowering. The operator then turns off the lifting motor 524. When the second filter structure 51 begins to rise and the top counterweight rod 513 enters between the corresponding pair of dust removal brushes 532, the drag-reducing strip 5131 of the corresponding top counterweight rod 513 will push open the bottom of the dust removal brushes 532, reducing the resistance to the rise of the second filter structure 51.

[0051] Next, the filter screen 5111 of the second filter structure 51 is cleaned: the operator starts the moving motor 534, which drives the screw 533 to rotate, thereby moving the dust removal plate 531 and multiple pairs of dust removal brushes 532 (including the dust removal brushes 532 located above the first filter structure 51). During the movement of the dust removal brushes 532, the filter screen 5111 is cleaned, and the dust brushed off falls into the dust collection tank 545. Through multiple forward and reverse rotations of the motor 534, the dust removal brushes 532 are driven to move back and forth multiple times along the axial direction of the screw 533, thoroughly removing the dust from the filter screen 5111.

[0052] When cleaning the filter screen 5111 of the second filter structure 51, the dust removal brush 532 above the first filter structure 51 will touch the extended telescopic rod 55 during its movement. As the dust removal brush 532 moves back and forth, it will touch the telescopic rod 55 multiple times, thereby removing the dust remaining on the dust removal brush 532. During the next alternating raising and lowering of the first and second filter structures 51, the dust removal brush 532 can clean the filter screen 5111 more thoroughly.

Claims

1. A box-type natural gas generator set, characterized in that: It includes a housing (1), a generator set body (2), a heat sink (3), an exhaust boiler (4), a filtration system (5), and an intake fan (6); the generator set body (2), the intake fan (6), and the filtration system (5) are arranged sequentially inside the housing (1); the heat sink (3) and the exhaust boiler (4) are located on the top of the housing (1) and connected to the generator set body (2) through pipes; an air inlet (11) is provided at one end of the housing (1), and the filtration system (5) is located near the air inlet (11); exhaust outlets (12) are provided on both sides near the other end of the housing (1); The filtration system (5) includes a pair of vertically arranged filter structures (51), a lifting structure (52), a dust removal component (53), and multiple pairs of support rods (54) fixedly connected to the bottom of the housing (1). Each filter structure (51) is slidably connected between two pairs of support rods (54), and both ends extend to the outside of the support rods (54) and are fixedly connected to a fixing plate (56). The lifting structure (52) is located outside the support rods (54). The lifting structure (52) includes two pairs of lifting plates (523). Each pair of lifting plates (523) is correspondingly located below the extension of a pair of filter structures (51) to drive the pair of filter structures (51) to rise and fall alternately. A dust collection trough (545) is fixedly connected to the middle side of each pair of support rods (54). The dust removal component (53) is located between multiple pairs of support rods (54) and above the dust collection trough (545). The dust removal component (53) can slide between multiple pairs of support rods (54).

2. A box-type natural gas generator set according to claim 1, characterized in that: All filter structures (51) include a pair of filter components, and all filter components include a filter element (511), a bottom counterweight rod (512) and a top counterweight rod (513); grooves are provided on both sides near the edge of the filter element (511) in the transverse and longitudinal directions; grooves matching the filter element (511) are provided in the middle of the bottom counterweight rod (512) and the top counterweight rod (513), and steps matching the grooves are formed on the groove walls to slide and connect with the upper and lower sides of the filter element (511) respectively.

3. A box-type natural gas generator set according to claim 2, characterized in that: The top counterweight rod (513) extends outward at both ends to the outside of a pair of support rods (54) and is fixedly connected to the fixing plate (56); the pore size of the pair of filter elements (511) in each pair of filter components is different in order to filter dust of different diameters; a drag-reducing strip (5131) is also fixedly connected to the top of the top counterweight rod (513).

4. A box-type natural gas generator set according to claim 3, characterized in that: Each support rod (54) has a longitudinal sliding groove (541) in the middle. The filter element (511), bottom counterweight rod (512) and top counterweight rod (513) are slidably connected in the sliding groove (541) on both sides. A limiting rod (544) is also provided on one side of the support rod (54). The limiting rod (544) passes through the side of the support rod (54) and is slidably connected to the longitudinal sliding groove of the filter element (511).

5. A box-type natural gas generator set according to claim 1, characterized in that: The lifting structure (52) includes two pairs of meshing threaded rods (521), a pair of steering gears (522), a lifting motor (524), and a connecting rod; the two pairs of threaded rods (521) are respectively located on the outside of the support rod (54); the opposite sides of the pair of steering gears (522) are connected to the two ends of the connecting rod, the top of the steering gear (522) is connected to one of the threaded rods (521), and the other threaded rod (521) is rotatably connected to the bottom of the housing (1), and the top of each pair of threaded rods (521) is connected to the support rod (54); the lifting motor (524) is fixedly connected to the top of any threaded rod (521).

6. A box-type natural gas generator set according to claim 5, characterized in that: Each pair of lifting plates (523) is set on the same side and threadedly connected to each pair of threaded rods (521), and is slidably connected to the corresponding support rod (54); a pair of filter structures (51) are located on the upper and lower sides of the dust collection trough (545); one of the lifting plates (523) is set near the top of the corresponding threaded rod (521), and the extension of the filter structure (51) located on the upper side of the dust collection trough (545) is placed on the upper side of the pair of lifting plates (523); the other is set near the bottom of the corresponding threaded rod (521), so that the distance between the two pairs of lifting plates (523) matches the height of a pair of filter structures (51).

7. A box-type natural gas generator set according to claim 3, characterized in that: The dust removal assembly (53) includes a dust removal plate (531), multiple pairs of dust removal brushes (532) fixedly connected to the lower side of the corresponding dust removal plate (531), a screw (533) and a moving motor (534). The screw (533) passes through and is threadedly connected to the dust removal plate (531). Both ends of the screw (533) extend to the outside of the support rod (54), and one end is fixedly connected to the drive end of the moving motor (534). The outer wall of the screw (533) near both ends is rotatably connected to a limit ring, and the limit ring is fixedly connected to the corresponding support rod (54).

8. A box-type natural gas generator set according to claim 7, characterized in that: The dust removal plate (531) has multiple pairs of stop grooves (5311) for matching drag-reducing strips (5131), and the top of the stop groove (5311) extends further upward to form a rectangular hole; each stop groove (5311) is correspondingly set on the upper side of the middle of the top of each pair of dust removal brushes (532).

9. A box-type natural gas generator set according to claim 4, characterized in that: Each drag-reducing bar (5131) has an avoidance notch (5132); a telescopic rod (55) is also provided between each pair of support rods (54). One end of the telescopic rod (55) is rotatably connected to the avoidance notch (5132), and the other end passes through the rectangular hole and is rotatably connected to the sliding groove (541); the diameter of the telescopic rod (55) is larger than the gap between each pair of dust removal brushes (532), and is used to clean the dust removal brushes (532).

10. A box-type natural gas generator set according to claim 1, characterized in that: A pair of L-shaped reinforcing rods (7) are provided on both sides of the intake fan (6). The bottom of the vertical part of the reinforcing rod (7) is fixedly connected to the bottom of the housing (1), and the horizontal part of the reinforcing rod (7) is fixedly connected to the top of the support rod (54).

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