CN214384173U - Mute diesel generator set - Google Patents
Mute diesel generator set Download PDFInfo
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- CN214384173U CN214384173U CN202120598502.4U CN202120598502U CN214384173U CN 214384173 U CN214384173 U CN 214384173U CN 202120598502 U CN202120598502 U CN 202120598502U CN 214384173 U CN214384173 U CN 214384173U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 83
- 239000004065 semiconductor Substances 0.000 claims abstract description 15
- 238000005057 refrigeration Methods 0.000 claims abstract description 11
- 238000004140 cleaning Methods 0.000 claims abstract description 6
- 230000017525 heat dissipation Effects 0.000 claims description 15
- 239000011229 interlayer Substances 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 11
- 239000003546 flue gas Substances 0.000 abstract description 11
- 239000007789 gas Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 238000010248 power generation Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract 1
- 238000000746 purification Methods 0.000 description 10
- 239000000779 smoke Substances 0.000 description 7
- 230000003139 buffering effect Effects 0.000 description 4
- 230000035939 shock Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of power generation facility, a silence diesel generating set is related to, wherein, the on-line screen storage device comprises a base, the top of base is provided with box and storage water tank, one side swing joint of box has the chamber door, the inside of box is provided with the supporting seat. The beneficial effects are that, this silence diesel generating set, through the storage water tank, the semiconductor refrigeration piece, the water delivery pump, the setting of circulating pipe and silence fan etc, realize that the semiconductor refrigeration piece cools down the water in the storage water tank and carry the inside cooling of box of circulating pipe through the water delivery pump with the water in the storage water tank, and silence fan and thermovent cool down to the box inside, the radiating effect has been increased, through the gas vent, the setting of flexible pipe and gas cleaning box, the flue gas that realizes the unit main part is discharged into and is filtered in the gas cleaning box, thereby the flue gas that has avoided unit main part during operation to produce causes the pollution to operational environment.
Description
Technical Field
The utility model belongs to the technical field of power generation facility, concretely relates to silence diesel generating set.
Background
The diesel generator set is a small-sized power generation device which takes diesel oil as fuel and takes a diesel engine as a prime mover to drive a generator to generate power, generally comprises the components of the diesel engine, the generator, a control box, a fuel tank, a storage battery, a protection device and the like, and is widely applied along with the development of the technology at present. For example, although the silent diesel generator set (application number: 202020797009.0) disclosed in the chinese patent document solves the problems that the wavy heat dissipation plate and the noise reduction cotton are arranged to reduce noise and noise, the heat dissipation speed in the case can be increased, and the noise reduction shell has the function of filtering smoke while reducing noise and noise, the silent diesel generator set does not solve the problems that the heat dissipation effect is not good, and the service life of the diesel generator set is short, the silent diesel generator set is provided.
SUMMERY OF THE UTILITY MODEL
To solve the problems set forth in the background art described above. The utility model provides a silence diesel generating set, it has solved the not good and low technical problem of diesel generating set's of life of radiating effect.
In order to achieve the above object, the utility model provides a following technical scheme: a silent diesel generator set comprises a base, wherein a box body and a water storage tank are arranged at the top of the base, a box door is movably connected to one side of the box body, a supporting seat is arranged in the box body, a movable groove is formed in the supporting seat, a connecting block is arranged at the bottom of the inner wall of the movable groove, sliding rods are arranged on two sides of the connecting block, the other ends of the sliding rods are fixedly connected to one side of the inner wall of the movable groove, a sliding block is movably sleeved on the outer surface of each sliding rod, a third spring and a fourth spring are respectively arranged on two sides of each sliding rod, the third spring and the fourth spring are both sleeved on the outer surface of each sliding rod, the other end of the third spring is fixedly connected to one side of the inner wall of the movable groove, the other end of the fourth spring is fixedly connected to one side of the connecting block, and a connecting rod is movably connected to the sliding blocks, the other end swing joint of connecting rod has same connecting seat, the top of connecting seat is provided with the connecting plate, the top of supporting seat is provided with gag lever post and first flexible subassembly, the quantity of gag lever post and first flexible subassembly is a plurality of, and is a plurality of same backup pad is worn to be equipped with by the other end of gag lever post, the bottom of supporting seat is provided with the flexible subassembly of second, the other end fixed connection of the flexible subassembly of second is at the top of connecting plate, the top of backup pad is provided with the unit main part, the inside of box is provided with the interlayer, the inside of interlayer is provided with the circulating pipe, the inside of storage water tank is provided with the division board, the inner wall bottom of storage water tank is provided with water delivery pump, inner wall one side of storage water tank is provided with the semiconductor refrigeration piece.
As a further aspect of the present invention: the first telescopic assembly comprises a first spring and a telescopic rod, the first spring is sleeved on the outer surface of the telescopic rod, one end of the telescopic rod is fixedly connected to the top of the supporting seat, the other end of the telescopic rod is fixedly connected to the bottom of the supporting plate, and the second telescopic assembly and the first telescopic assembly are identical in structure.
As a further aspect of the present invention: the gas purification unit is characterized in that a silent fan and a gas purification box are arranged at the top of the box body, a filter screen is communicated with an air inlet of the silent fan, an air outlet of the silent fan penetrates through the box body and is communicated with the inside of the box body, an air outlet is formed in the top of the unit main body, the other end of the air outlet is communicated with a telescopic pipe, and the other end of the telescopic pipe penetrates through the box body and is communicated with the bottom of the gas purification box.
As a further aspect of the present invention: the other end of gag lever post is provided with the stopper, the surface of gag lever post has cup jointed the second spring, the one end fixed connection of second spring is at the top of supporting seat, the bottom of the other end fixed connection backup pad of second spring.
As a further aspect of the present invention: the interlayer and the box body are provided with the same heat dissipation holes, the number of the heat dissipation holes is multiple, and the heat dissipation holes are uniformly arranged.
As a further aspect of the present invention: the water inlet end of the water delivery pump is communicated with a water inlet pipe, the other end of the water inlet pipe penetrates through the partition plate and is communicated with the water storage tank, the water outlet end of the water delivery pump is communicated with a water delivery pipe, the other end of the water delivery pipe penetrates through the water storage tank and is communicated with the tank body on a circulating pipe, and the other end of the circulating pipe penetrates through the tank body and is communicated with the water storage tank.
As a further aspect of the present invention: and a control panel is arranged on one side of the box door and is electrically connected with the silent fan, the water delivery pump and the semiconductor refrigerating sheet through leads respectively.
Compared with the prior art, the beneficial effects of the utility model are that:
1. this silence diesel generating set through the setting of storage water tank, semiconductor refrigeration piece, water delivery pump, circulating pipe and silence fan etc. realizes that the semiconductor refrigeration piece cools down and carries the inside box that cools down of circulating pipe through the water delivery pump with the water in the storage water tank to reach silence fan and radiating hole and cool down to the box inside, increased radiating effect.
2. This silence diesel generating set through the setting of first flexible subassembly, the flexible subassembly of second, connecting seat, third spring and fourth spring etc. realizes buffering under the effect of first flexible subassembly, the flexible subassembly of second and second spring when the vibrations that the unit main part produced at the during operation to and carry out multistage shock attenuation under the effect of third spring and fourth spring, increased the life of unit main part.
3. This silence diesel generating set, through the gas vent, flexible pipe and gas cleaning box's setting, the flue gas that realizes the unit main part is discharged and is entered the gas cleaning box and filter in to avoided the flue gas that the unit main part during operation produced to cause the pollution to operational environment, through the setting of filter screen, the realization is filtered the inspiratory air of silence fan, prevent that a large amount of dusts from entering into the inside of box and piling up the unit main part, influence the heat dissipation of unit main part.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a front view of the present invention;
fig. 2 is a schematic structural view of a front view section of the present invention;
FIG. 3 is a schematic view of the structure of part A in FIG. 2 according to the present invention;
fig. 4 is a schematic structural view of a first telescopic assembly in the present invention;
fig. 5 is a schematic three-dimensional structure of the present invention;
in the figure: 1. a base; 2. a box body; 3. a water storage tank; 4. a box door; 5. a control panel; 6. a mute fan; 7. a filter screen; 8. a flue gas purification box; 9. a supporting seat; 10. a movable groove; 11. a first telescoping assembly; 1101. a telescopic rod; 1102. a first spring; 12. a limiting rod; 13. a second spring; 14. a support plate; 15. a unit main body; 16. an exhaust port; 17. an interlayer; 18. a circulation pipe; 19. connecting blocks; 20. a partition plate; 21. a water delivery pump; 22. a water inlet pipe; 23. a water delivery pipe; 24. a semiconductor refrigeration sheet; 25. a slide bar; 26. a slider; 27. a third spring; 28. a fourth spring; 29. a connecting rod; 30. a connecting seat; 31. a connecting plate; 32. a second telescoping assembly; 33. heat dissipation holes; 34. a telescopic tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
Referring to fig. 1-5, the present invention provides the following technical solutions: a silent diesel generator set comprises a base 1, a box body 2 and a water storage tank 3 are arranged at the top of the base 1, a box door 4 is movably connected to one side of the box body 2, a supporting seat 9 is arranged inside the box body 2, a movable groove 10 is formed inside the supporting seat 9, a connecting block 19 is arranged at the bottom of the inner wall of the movable groove 10, sliding rods 25 are arranged on two sides of the connecting block 19, the other end of each sliding rod 25 is fixedly connected to one side of the inner wall of the movable groove 10, a sliding block 26 is movably sleeved on the outer surface of each sliding rod 25, a third spring 27 and a fourth spring 28 are respectively arranged on two sides of each sliding block 26, the third spring 27 and the fourth spring 28 are both sleeved on the outer surface of each sliding rod 25, the other end of the third spring 27 is fixedly connected to one side of the inner wall of the movable groove 10, the other end of the fourth spring 28 is fixedly connected to one side of the connecting block 19, and a connecting rod 29 is movably connected to the sliding blocks 26, the other end of the connecting rod 29 is movably connected with the same connecting seat 30, the top of the connecting seat 30 is provided with a connecting plate 31, the top of the supporting seat 9 is provided with a limiting rod 12 and a first telescopic component 11, the limiting rod 12 and the first telescopic component 11 are respectively provided with a plurality of numbers, the other ends of the limiting rods 12 penetrate through the same supporting plate 14, the bottom of the supporting seat 9 is provided with a second telescopic component 32, the other end of the second telescopic component 32 is fixedly connected with the top of the connecting plate 31, and through the arrangement of the first telescopic component 11, the second telescopic component 32, the connecting seat 30, a third spring 27, a fourth spring 28 and the like, the vibration generated when the unit main body 15 works is buffered under the action of the first telescopic component 11, the second telescopic component 32 and the second spring 13, and multi-level shock absorption is performed under the action of the third spring 27 and the fourth spring 28, so that the service life of the unit main body 15 is prolonged, the top of backup pad 14 is provided with unit main body 15, the inside of box 2 is provided with interlayer 17, the inside of interlayer 17 is provided with circulating pipe 18, the inside of storage water tank 3 is provided with division board 20, the inner wall bottom of storage water tank 3 is provided with water delivery pump 21, inner wall one side of storage water tank 3 is provided with semiconductor refrigeration piece 24, through storage water tank 3, semiconductor refrigeration piece 24, water delivery pump 21, the setting of circulating pipe 18 and silence fan 6 etc., realize that semiconductor refrigeration piece 24 cools down the water in storage water tank 3 and carry into circulating pipe 18 inside through water delivery pump 21 and cool down to box 2 inside, and silence fan 6 and louvre 33 cool down to box 2 inside, radiating effect has been increased.
Specifically, as shown in fig. 1, 2 and 5, a silent fan 6 and a flue gas purification box 8 are arranged at the top of a box body 2, an air inlet of the silent fan 6 is communicated with a filter screen 7, air sucked by the silent fan 6 is filtered through the filter screen 7, a large amount of dust is prevented from entering the box body 2 and accumulating on a unit main body 15 to affect heat dissipation of the unit main body 15, an air outlet of the silent fan 6 penetrates through the box body 2 and is communicated in the box body 2, an air outlet 16 is arranged at the top of the unit main body 15, the other end of the air outlet 16 is communicated with an extension tube 34, the other end of the extension tube 34 penetrates through the box body 2 and is communicated at the bottom of the flue gas purification box 8, and through the arrangement of the air outlet 16, the extension tube 34 and the flue gas purification box 8, the flue gas of the unit main body 15 is discharged into the flue gas purification box 8 to be filtered, so that the pollution of the flue gas generated when the unit main body 15 works to the working environment is avoided, the other end of the limiting rod 12 is provided with a limiting block, the outer surface of the limiting rod 12 is sleeved with a second spring 13, one end of the second spring 13 is fixedly connected with the top of the supporting seat 9, the other end of the second spring 13 is fixedly connected with the bottom of the supporting plate 14, the interlayer 17 and the box body 2 are provided with a plurality of heat dissipation holes 33, the plurality of heat dissipation holes 33 are uniformly arranged, the water inlet end of the water delivery pump 21 is communicated with a water inlet pipe 22, the other end of the water inlet pipe 22 passes through the partition plate 20 and is communicated in the water storage tank 3, the water outlet end of the water delivery pump 21 is communicated with a water delivery pipe 23, the other end of the water delivery pipe 23 passes through the water storage tank 3 and the box body 2 and is communicated on the circulating pipe 18, the other end of the circulating pipe 18 passes through the box body 2 and is communicated in the water storage tank 3, one side of the box door 4 is provided with a control panel 5, and the mute fan 6 respectively, the water delivery pump 21 and the semiconductor refrigeration piece 24 are electrically connected through a lead.
Specifically, as shown in fig. 1 and 4, the first telescopic assembly 11 includes a first spring 1102 and a telescopic rod 1101, the first spring 1102 is sleeved on an outer surface of the telescopic rod 1101, one end of the telescopic rod 1101 is fixedly connected to the top of the supporting seat 9, the other end of the telescopic rod 1101 is fixedly connected to the bottom of the supporting plate 14, and the second telescopic assembly 32 and the first telescopic assembly 11 have the same structure.
The utility model discloses a theory of operation does:
s1, when the silent diesel generator set is used, an external power supply is connected, water is injected into the water storage tank 3, the control panel 5 controls the semiconductor refrigerating sheet 24 to work, the semiconductor refrigerating sheet 24 cools the water in the water storage tank 3, the control panel 5 controls the water delivery pump 21 and the silent fan 6 to work, the water delivery pump 21 delivers the water in the water storage tank 3 into the circulating pipe 18, cold water in the circulating pipe 18 cools the interior of the box body 2, the silent fan 6 filters outside air and sucks the air into the box body 2, and heat emitted by the unit main body 15 is discharged through the radiating holes 33;
s2, buffering and damping are carried out on the vibration generated by the unit main body 15 during working under the action of the first telescopic assembly 11, the second telescopic assembly 32 and the second spring 13, the second telescopic assembly 32 pushes the connecting plate 31 and the connecting seat 30 to enable the connecting rod 29 to push the sliding block 26 to move while buffering and damping are carried out on the second telescopic assembly 32, the third spring 27 is in a compression state and the fourth spring 28 is in a stretching state when the sliding block 26 moves, the vibration is buffered for the second time under the action of the third spring 27 and the fourth spring 28, the damage probability of the unit main body 15 due to the vibration is reduced, and the service life of the unit main body 15 is prolonged;
s3, when the unit main body 15 performs buffering and shock absorption, the limiting rod 12 limits the supporting plate 14, smoke generated by the unit main body 15 during working is conveyed into the smoke purification box 8 through the exhaust port 16 and the extension pipe 34, the smoke is filtered under the action of the smoke purification box 8, the filtered smoke is discharged to the outside, and pollution to the working environment caused by the smoke generated by the unit main body 15 during working is prevented.
While embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that modifications, alterations, substitutions and variations may be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (7)
1. The utility model provides a silence diesel generating set, includes base (1), its characterized in that: the water storage tank is characterized in that a tank body (2) and a water storage tank (3) are arranged at the top of the base (1), a tank door (4) is movably connected to one side of the tank body (2), a supporting seat (9) is arranged inside the tank body (2), a movable groove (10) is formed inside the supporting seat (9), a connecting block (19) is arranged at the bottom of the inner wall of the movable groove (10), sliding rods (25) are arranged on two sides of the connecting block (19), the other end of each sliding rod (25) is fixedly connected to one side of the inner wall of the movable groove (10), a sliding block (26) is movably sleeved on the outer surface of each sliding rod (25), a third spring (27) and a fourth spring (28) are respectively arranged on two sides of each sliding block (26), the third spring (27) and the fourth spring (28) are sleeved on the outer surface of each sliding rod (25), and the other end of the third spring (27) is fixedly connected to one side of the inner wall of the movable groove (10), the other end of the fourth spring (28) is fixedly connected to one side of the connecting block (19), the sliding block (26) is movably connected with a connecting rod (29), the other end of the connecting rod (29) is movably connected with the same connecting seat (30), a connecting plate (31) is arranged at the top of the connecting seat (30), a limiting rod (12) and a first telescopic assembly (11) are arranged at the top of the supporting seat (9), the limiting rod (12) and the first telescopic assembly (11) are respectively in a plurality, the same supporting plate (14) is arranged at the other end of the limiting rod (12) in a penetrating mode, a second telescopic assembly (32) is arranged at the bottom of the supporting seat (9), the other end of the second telescopic assembly (32) is fixedly connected to the top of the connecting plate (31), and a unit main body (15) is arranged at the top of the supporting plate (14), the inside of box (2) is provided with interlayer (17), the inside of interlayer (17) is provided with circulating pipe (18), the inside of storage water tank (3) is provided with division board (20), the inner wall bottom of storage water tank (3) is provided with water delivery pump (21), inner wall one side of storage water tank (3) is provided with semiconductor refrigeration piece (24).
2. The silent diesel generator set of claim 1, wherein: the first telescopic assembly (11) comprises a first spring (1102) and a telescopic rod (1101), the first spring (1102) is sleeved on the outer surface of the telescopic rod (1101), one end of the telescopic rod (1101) is fixedly connected to the top of the supporting seat (9), the other end of the telescopic rod (1101) is fixedly connected to the bottom of the supporting plate (14), and the second telescopic assembly (32) and the first telescopic assembly (11) are identical in structure.
3. The silent diesel generator set of claim 1, wherein: the top of box (2) is provided with silence fan (6) and gas cleaning case (8), the air inlet intercommunication of silence fan (6) has filter screen (7), the gas outlet of silence fan (6) passes box (2) intercommunication in box (2), gas vent (16) have been seted up at the top of unit main part (15), the other end intercommunication of gas vent (16) has flexible pipe (34), the other end of flexible pipe (34) passes box (2) intercommunication in the bottom of gas cleaning case (8).
4. The silent diesel generator set of claim 1, wherein: the other end of gag lever post (12) is provided with the stopper, second spring (13) has been cup jointed to the surface of gag lever post (12), the top at supporting seat (9) is connected to the one end fixed connection of second spring (13), the bottom of other end fixed connection backup pad (14) of second spring (13).
5. The silent diesel generator set of claim 1, wherein: the heat dissipation device is characterized in that the interlayer (17) and the box body (2) are provided with the same heat dissipation holes (33), the number of the heat dissipation holes (33) is multiple, and the heat dissipation holes (33) are uniformly arranged.
6. The silent diesel generator set of claim 1, wherein: the water inlet end of the water delivery pump (21) is communicated with a water inlet pipe (22), the other end of the water inlet pipe (22) penetrates through the partition plate (20) to be communicated with the water storage tank (3), the water outlet end of the water delivery pump (21) is communicated with a water delivery pipe (23), the other end of the water delivery pipe (23) penetrates through the water storage tank (3) and the tank body (2) to be communicated with the circulating pipe (18), and the other end of the circulating pipe (18) penetrates through the tank body (2) to be communicated with the water storage tank (3).
7. The silent diesel generator set of claim 1, wherein: one side of the box door (4) is provided with a control panel (5), and the control panel (5) is respectively electrically connected with the silent fan (6), the water delivery pump (21) and the semiconductor refrigerating sheet (24) through leads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120598502.4U CN214384173U (en) | 2021-03-24 | 2021-03-24 | Mute diesel generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120598502.4U CN214384173U (en) | 2021-03-24 | 2021-03-24 | Mute diesel generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214384173U true CN214384173U (en) | 2021-10-12 |
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ID=77992720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120598502.4U Active CN214384173U (en) | 2021-03-24 | 2021-03-24 | Mute diesel generator set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214384173U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116085107A (en) * | 2022-12-30 | 2023-05-09 | 江苏瑞昌哥尔德发电设备股份有限公司 | Diesel generating set with good heat dissipation |
| CN116557135A (en) * | 2023-05-13 | 2023-08-08 | 江苏群菱能源科技有限公司 | A diesel power station box |
| CN117627780A (en) * | 2023-11-16 | 2024-03-01 | 福建永强力加动力设备有限公司 | Generator unit operating data sampling expansion and remote control device |
-
2021
- 2021-03-24 CN CN202120598502.4U patent/CN214384173U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116085107A (en) * | 2022-12-30 | 2023-05-09 | 江苏瑞昌哥尔德发电设备股份有限公司 | Diesel generating set with good heat dissipation |
| CN116557135A (en) * | 2023-05-13 | 2023-08-08 | 江苏群菱能源科技有限公司 | A diesel power station box |
| CN116557135B (en) * | 2023-05-13 | 2026-04-21 | 江苏群菱能源科技有限公司 | A diesel power station box |
| CN117627780A (en) * | 2023-11-16 | 2024-03-01 | 福建永强力加动力设备有限公司 | Generator unit operating data sampling expansion and remote control device |
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