An assembled energy-saving diesel generator set

Abstract

The application discloses an assembled energy-saving diesel generator set and relates to the technical field of diesel generator sets.The assembled energy-saving diesel generator set comprises a generator set, an air inlet pipe connected to the generator set, and a filtering mechanism installed on the generator set and comprising two groups of filter elements for filtering air entering the generator set.The filtering mechanism comprises a shell fixed to the generator set through a support plate and filter elements installed in the inner cavity of the shell and having a butt joint groove at one end.The application automatically drives the filter elements to rotate and switch the air-approaching surface through differential pressure, avoids the increase of air inlet resistance caused by long-term blockage of one side, makes all areas of the filter elements participate in filtering uniformly, greatly prolongs the single-use period of the filter elements, reduces the replacement frequency, does not need external power during the rotation adjustment process, completely relies on airflow differential pressure for driving, reduces energy consumption, and simultaneously, the rotation action is one-way limited by a ratchet mechanism, reverse disturbance during resetting is avoided, and the air inlet flow is ensured to be stable.

Description

Technical Field

[0001] This invention relates to the field of diesel generator set technology, and in particular to a prefabricated energy-saving diesel generator set. Background Technology

[0002] Prefabricated energy-saving diesel generator sets are complete sets of equipment that convert the chemical energy of diesel fuel into electrical energy. They mainly consist of a diesel engine, generator, control system, and common base. As a backup or primary power source, they feature rapid start-up, stable operation, and reliable power supply. They are widely used in infrastructure construction, industrial production, commercial buildings, hospitals, and data centers, and play a crucial role, especially in situations where the power grid cannot cover the area or where emergency backup is required.

[0003] However, in practical applications, there are still some unresolved problems. The following are some common problems of prefabricated energy-saving diesel generator sets: First, the intake filtration system of diesel generator sets mostly adopts a single fixed filter element structure. After long-term use, the filter element is prone to local blockage and low utilization rate of effective filtration area. Second, after the filter element is blocked, it is necessary to stop the machine to replace it, which cannot achieve uninterrupted air supply and affects the continuous operation of the unit. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above and / or existing prefabricated energy-saving diesel generator sets, the present invention is proposed.

[0006] Therefore, the problem to be solved by this invention is how to address the issues of easy clogging on one side of the filter element, low effective area utilization, and inability to automatically switch filters online.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a prefabricated energy-saving diesel generator set, comprising: a generator set, including an intake pipe connected thereto; and two sets of filter mechanisms installed on the generator set for filtering the air entering the generator set. The filter mechanisms include: a housing fixed to the generator set by a support plate; a filter element installed in the inner cavity of the housing, one end of which has a connecting groove; a connecting pipe connected to the housing; and a differential pressure device installed on and connected to the connecting pipe and the housing for feedback between the inner cavity of the housing and the inner cavity of the connecting pipe. Differential pressure; transmission component, mounted on the housing and differential pressure component, used to drive the filter element to rotate and change its facing position; three-way valve, connecting the intake pipe and the connecting pipe; switching mechanism, mounted on the housing and transmission component, used to control the on / off connection between the three-way valve and the two sets of filter mechanisms; drive component, mounted on the housing and three-way valve, used to drive the three-way valve to switch on / off with one set of filter mechanisms; on / off electrical component, mounted on the transmission component, after the differential pressure component reports a large differential pressure, the transmission component operates, energizing the on / off electrical component and the drive component to drive the three-way valve to switch and connect with the other set of filter mechanisms.

[0008] As a preferred embodiment of the prefabricated energy-saving diesel generator set of the present invention, the housing includes: a housing, which is fixed to the generator set by a support plate, and a connecting pipe passes through the housing and is fixedly connected to it; a housing cover, installed on one side of the housing; a docking sleeve, rotatably sleeved on one end of the connecting pipe, and one end of the docking sleeve is inserted into one end of the filter element; a docking post, fixed on the surface of the docking sleeve, and one end of the docking post is inserted into the docking groove on one end of the filter element; and a positioning sleeve, rotatably on one side of the housing cover, and one end of the positioning sleeve is inserted into the other end of the filter element.

[0009] As a preferred embodiment of the prefabricated energy-saving diesel generator set of the present invention, the housing further includes: a limiting member, installed at one end of the housing and cooperating with the housing cover; a connecting block, fixed at one end of the connecting pipe; a screw, fixed on one side of the connecting block, with one end of the screw passing through the positioning sleeve and the housing cover and extending to the outside; and a nut, threadedly sleeved on the surface of one end of the screw and abutting against the surface of the housing cover.

[0010] As a preferred embodiment of the prefabricated energy-saving diesel generator set of the present invention, the differential pressure component includes: a connecting pipe, one end of which is connected to a connecting pipe and the other end of which passes through the housing and is fixedly connected to the housing; a short block, which is fixed to the inner wall of the connecting pipe; a piston, which slides on the inner wall of the connecting pipe and cooperates with a transmission component; a guide rod, which slides on the short block and one end of the guide rod is fixed to one side of the piston; and a spring, which is sleeved on the surface of the guide rod and its two ends are respectively fixed between the surface of the piston and the surface of the short block.

[0011] As a preferred embodiment of the prefabricated energy-saving diesel generator set of the present invention, the transmission component includes: a first bevel gear, fixedly sleeved on the surface of the mating sleeve; a rotating rod, rotating on the housing; a second bevel gear, fixed to one end of the rotating rod and meshing with the first bevel gear; and a first spur gear, fixed to the other end of the rotating rod.

[0012] As a preferred embodiment of the prefabricated energy-saving diesel generator set of the present invention, the transmission component further includes: a fixed block, fixed to the surface of the housing; a rotating sleeve, rotatably connected to the fixed block; a round rod, sliding on the connecting pipe and the rotating sleeve, with one end of the round rod fixed to the surface of the piston; a ball, embedded in the inner wall of the rotating sleeve; a guide groove, formed on the surface of the round rod, with the ball sliding in the guide groove; a ratchet, its inner ring fixedly fitted on the surface of the rotating sleeve; a second spur gear, fixedly fitted on the outer ring surface of the ratchet and meshing with the first spur gear; and a cover, fixed to the inner wall of the housing, with the mating sleeve rotatably connected to the cover.

[0013] As a preferred embodiment of the prefabricated energy-saving diesel generator set of the present invention, the driving component includes: a square rod fixed between two housing surfaces; a toothed plate slidably sleeved on the surface of the square rod; two electromagnetic components, respectively fixed on the two end surfaces of the square rod; two permanent magnets, respectively fixedly sleeved on the two end surfaces of the toothed plate and cooperating with the electromagnetic components; and a gear fixedly sleeved on the surface of the three-way valve stem and meshing with the toothed plate.

[0014] As a preferred embodiment of the prefabricated energy-saving diesel generator set of the present invention, the power switching component includes: an insulating ring one, which is fixed to the surface of the fixing block by a support rod; a conductive ring one, which is fixed to one side of the insulating ring one; an insulating ring two, which is sleeved on the surface of the round rod one; and a conductive ring two, which is fixed to one side of the insulating ring two and cooperates with the conductive ring one.

[0015] As a preferred embodiment of the prefabricated energy-saving diesel generator set of the present invention, wherein: the housing is provided with an annular groove, and the limiting component includes: a groove, which is provided inside the housing and communicates with the annular groove; a locking block, which slides in the groove and cooperates with the housing cover; a sliding groove, which is provided on the inner wall of the groove; a slider, which is fixed to the surface of the locking block and slides in the sliding groove; and a second spring, whose two ends are respectively fixed to the surface of the slider and the inner wall of the sliding groove.

[0016] As a preferred embodiment of the prefabricated energy-saving diesel generator set of the present invention, the filter mechanism further includes a feedback component installed on the housing, and the feedback component cooperates with the limiting component. The feedback component includes: a cylinder, fixed to one side of the housing; a second piston, sliding on the inner wall of the cylinder; a connecting pipe, the other end of which is connected to one end of the cylinder and the other end is fixed to the surface of the housing and connected to the annular groove; a second connecting pipe, one end of which is connected to the connecting pipe and the other end of which passes through the housing and is fixedly connected to the housing; a third piston, sliding on the inner wall of the second connecting pipe; and a second round rod, sliding on the cylinder and the second connecting pipe, with both ends fixed between one side of the second piston and one side of the third piston, respectively.

[0017] The beneficial effects of this invention are as follows: 1. By automatically driving the filter element to rotate and switch the air-facing side through differential pressure, the long-term blockage on one side causes an increase in intake resistance, and all areas of the filter element participate in filtration evenly, which greatly extends the single-use cycle and reduces the frequency of replacement. The rotation adjustment process does not require external power and is driven entirely by airflow differential pressure, which reduces energy consumption. At the same time, the rotation action is limited in one direction by the ratchet mechanism to avoid reverse disturbance during reset, ensuring stable intake flow, reducing power loss of the unit caused by unstable intake, improving the combustion efficiency and energy-saving effect of the diesel generator set, and reducing long-term use costs.

[0018] 2. It enables automatic switching between two sets of filtration mechanisms without shutting down the unit, solving the pain point of traditional devices requiring shutdown for maintenance and ensuring continuous operation of the generator set. When the blockage of one set of filter elements reaches the threshold, the on / off electrical components automatically conduct to trigger the drive components, which smoothly drive the three-way valve to switch the passage through electromagnetic repulsion. The switching is rapid and reliable, without interruption of air supply. With the iron ring magnetic self-locking, it prevents accidental displacement of the toothed plate. The state is stable and reliable after switching. The dual-mechanism redundancy design allows filter element replacement and maintenance to be completed without shutting down the unit, greatly improving the continuity of unit operation and work efficiency. It is especially suitable for industrial and emergency power supply scenarios where shutdown is not possible.

[0019] 3. The feedback device is linked to the pressure differential limit device. When the pressure differential is abnormal or the filter switching is not completed, the cover will be automatically locked, preventing disassembly. This completely avoids unfiltered air entering the unit and causing wear on key components such as cylinders and pistons, thus extending the unit's overhaul cycle. The unlocking logic is simple and reliable. Opening the box for maintenance is only allowed when the pressure differential is normal and the system is safe, reducing the operation threshold and safety hazards. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a scene illustration of a prefabricated energy-saving diesel generator set.

[0022] Figure 2 This is a partial sectional perspective view of a prefabricated energy-saving diesel generator set.

[0023] Figure 3 This is a sectional perspective view of the housing and filter element of a prefabricated energy-saving diesel generator set.

[0024] Figure 4 For prefabricated energy-saving diesel generator sets Figure 3 Structure diagram of region A in the middle.

[0025] Figure 5 For prefabricated energy-saving diesel generator sets Figure 3 Structure diagram of region B in the middle.

[0026] Figure 6 This is a partial sectional perspective view of connecting pipe 1 and connecting pipe 2 of a prefabricated energy-saving diesel generator set.

[0027] Figure 7 A partial sectional perspective view of the fixing block and rotating sleeve of a prefabricated energy-saving diesel generator set.

[0028] Figure 8 This is a partial sectional plan view of the ratchet of a prefabricated energy-saving diesel generator set.

[0029] Figure 9 This is a sectional perspective view of the gear plate and square rod of a prefabricated energy-saving diesel generator set.

[0030] Figure 10 Sectional three-dimensional view of a partial structure of the housing of a prefabricated energy-saving diesel generator set. Figure 1 .

[0031] Figure 11 Sectional three-dimensional view of a partial structure of the housing of a prefabricated energy-saving diesel generator set. Figure 2 .

[0032] Figure 12 This is a three-dimensional view of the housing of a prefabricated energy-saving diesel generator set.

[0033] In the diagram: 1. Generator set; 11. Intake pipe; 2. Filter mechanism; 21. Housing; 22. Filter element; 23. Connecting pipe; 24. Differential pressure component; 25. Transmission component; 26. Feedback component; 3. Three-way valve; 4. Switching mechanism; 41. Drive component; 42. Power on / off component; 211. Housing; 212. Housing cover; 213. Connecting sleeve; 214. Connecting post; 215. Positioning sleeve; 216. Limiting component; 217. Connecting block; 218. 219. Screw; 2110. Nut; 2111. Ring plate; 2111. Ring body; 2112. Air intake hopper; 2113. Baffle; 221. Connecting groove; 2121. Ring groove; 241. Connecting pipe one; 242. Short block one; 243. Piston one; 244. Guide rod one; 245. Spring one; 251. Bevel gear one; 252. Rotating rod; 253. Bevel gear two; 254. Circular gear one; 255. Fixing block; 256. Rotating sleeve; 257. Round rod one; 258. Ball bearing; 259. Guide groove; 2510. Ratchet; 2511. Circular gear two; 2512. Cover; 411. Square rod; 412. Gear plate; 413. Electromagnetic component; 414. Permanent magnet; 415. Missing gear; 416. Limiting block; 421. Insulating ring one; 422. Conductive ring one; 423. Insulating ring two; 424. Conductive ring two; 425. Round block; 426. Spring piece; 427. 4131. Short rod; 4132. Round plate; 4133. Electromagnet; 4134. Rubber sleeve; 4135. Iron ring; 2161. Groove; 2162. Locking block; 2163. Slide groove; 2164. Sliding block; 2165. Spring II; 261. Cylinder; 262. Piston II; 263. Connecting pipe; 264. Connecting pipe II; 265. Piston III; 266. Round rod II; 267. Short block II; 268. Guide rod II; 269. Spring III. Detailed Implementation

[0034] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0035] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0037] Example 1, referring to Figures 1-3This is the first embodiment of the present invention. This embodiment provides a prefabricated energy-saving diesel generator set, which includes a generator set 1, a filter mechanism 2, a three-way valve 3, and a switching mechanism 4.

[0038] Specifically, generator set 1 is fixedly placed and includes an intake pipe 11 connected thereto. Generator set 1 is a prefabricated energy-saving diesel generator set, which is existing technology. The working principle of this part is also existing technology, which can be clearly understood by those skilled in the art, and will not be described in detail here. The intake pipe 11 is installed on the turbine intake structure on generator set 1, which is existing technology, which can be clearly understood by those skilled in the art, and will not be described in detail here.

[0039] Specifically, there are two filter units 2 installed on the generator set 1, which are used to filter the air entering the generator set 1. The two filter units 2 are arranged alternately. When one filter unit 2 becomes clogged after a long period of use and cannot meet the air intake filtration requirements of the assembled energy-saving diesel generator set, it switches to the other filter unit 2 to continue working, thereby continuously meeting the air intake filtration requirements of the generator set 1 and achieving uninterrupted air intake filtration without stopping the machine. In actual use, in the initial state, one filter unit 2 is in working state and the other filter unit 2 is in standby state, ensuring the redundancy of the air intake filtration system.

[0040] Specifically, the filtration mechanism 2 includes: a housing 21, which is fixed to the generator set 1 by a support plate; and a filter element 22, which is installed in the inner cavity of the housing 21 and is used to further filter the air entering the housing 21 to keep it clean before entering the generator set 1. One end of the filter element 22 has a docking groove 221. The housing 21 serves as a mounting carrier to support components such as the filter element 22 and the differential pressure component 24. At the same time, it provides a closed flow space for air filtration, ensuring that air enters the generator set 1 only after being filtered by the filter element 22, thus preventing unfiltered air from directly entering the generator set. The filter element 22 is a high-efficiency air filter element, which can effectively filter dust and impurities in the air, meet the air intake filtration requirements of the generator set 1, and prevent impurities from entering the generator set and causing component wear and failure. This further improves the energy efficiency and service life of the generator set 1. This is existing technology, which is clearly known to those skilled in the art, and will not be described in detail here.

[0041] Specifically, the connecting pipe 23 is connected to the housing 21; the connecting pipe 23 serves as a transition channel for air circulation, delivering clean air filtered by the filter element 22 to the three-way valve 3, and then introducing it into the air intake pipe 11 of the generator set 1 through the three-way valve 3.

[0042] Specifically, the differential pressure component 24 is installed and connected to the connecting pipe 23 and the housing 21 to provide feedback on the pressure difference between the inner cavity of the housing 21 and the inner cavity of the connecting pipe 23. When the air intake position of the filter element 22 is blocked, the air intake resistance of the inner cavity of the housing 21 increases, and the pressure difference with the inner cavity of the connecting pipe 23 will increase accordingly. The differential pressure component 24 can capture this pressure difference change, provide power for the subsequent transmission component 25 to drive the filter element 22 to rotate, and provide a basis for the switching operation of the filter mechanism 2.

[0043] Specifically, the transmission component 25, which is installed on the housing 21 and the differential pressure component 24, is used to drive the filter element 22 to rotate based on the pressure difference between the inner cavity of the housing 21 and the inner cavity of the connecting pipe 23, thereby changing the air-facing position of the filter element 22. When the pressure difference is within the normal range, the transmission component 25 does not move, keeping the filter element 22 in a fixed air-facing position. When the pressure difference exceeds the set threshold, the transmission component 25 operates to drive the filter element 22 to rotate, which can adjust the filtration angle of the filter element 22, alleviate clogging, and prevent the filter element 22 from being blocked by maintaining a fixed air-facing position for a long time, while other positions remain unused.

[0044] Specifically, the three-way valve 3 is connected between the intake pipe 11 and the connecting pipe 23; as a switching hub for air circulation, by changing the connection state of the three-way valve 3, the intake pipe 11 is connected to one of the filter mechanisms 2, thereby controlling the working state of the filter mechanism 2.

[0045] Specifically, the switching mechanism 4, which is installed on the housing 21 and the transmission component 25, is used to control the on / off connection between the three-way valve 3 and the two sets of filter mechanisms 2; to ensure that the air intake is not interrupted during the switching process and to ensure the normal operation of the generator set 1.

[0046] Specifically, the drive component 41 is mounted on the housing 21 and the three-way valve 3, and is used to drive the three-way valve 3 to switch on and off with one of the filter mechanisms 2; after receiving the energization of the corresponding on / off electrical component 42, it drives the three-way valve 3 to switch the connection direction, so as to realize the alternating operation of the two filter mechanisms 2.

[0047] Specifically, the on / off switch 42 is installed on the transmission component 25. After the differential pressure component 24 reports a large differential pressure, the transmission component 25 operates, energizing the on / off switch 42 and driving the drive component 41 to switch the three-way valve 3 to connect with another set of filter mechanisms 2. When the filter element 22 is clogged to a set degree, the transmission component 25 starts to operate, driving the on / off switch 42 to operate, energizing the on / off switch 42, which in turn triggers the drive component 41 to start, driving the three-way valve 3 to switch to connect with another set of filter mechanisms 2, thus completing the automatic switching of filter mechanisms 2.

[0048] Example 2, refer to Figures 2 to 11 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0049] Specifically, housing 21 includes: housing 211, which is fixed to generator set 1 by a support plate, and connecting pipe 23 passes through housing 211 and is fixedly connected to it; housing cover 212, which is installed on one side of housing 211; docking sleeve 213, which is rotatably sleeved on one end of connecting pipe 23, and one end of docking sleeve 213 is inserted into one end of filter element 22; docking post 214, which is fixed on the surface of docking sleeve 213, and one end of docking post 214 is inserted into docking groove 221 on one end of filter element 22; positioning sleeve 215, which rotates on one side of housing cover 212, and one end of positioning sleeve 215 is inserted into the other end of filter element 22.

[0050] The docking sleeve 213 is rotatably connected to the connecting pipe 23 through a sealed damping bearing. The housing 211 and the cover 212 are sealed together, and the docking sleeve 213 and the filter element 22 are sealed together. The docking sleeve 213 is provided with an integrally formed protrusion, which serves to limit the filter element 22 when it is inserted into the docking sleeve 213. There are several docking posts 214 and docking grooves 221, which are distributed in a circumferential array.

[0051] With the connection post 214 and connection groove 221, after the filter element 22 is inserted into the connection sleeve 213 and the connection post 214 is smoothly inserted into the connection groove 221, the filter element 22 can be rotated when the connection sleeve 213 is rotated to drive the connection post 214 to rotate, thereby changing the air-facing position of the filter element 22 and avoiding the filter effect from being affected by the air-facing position being fixed for a long time.

[0052] The cover 212 has an integrally formed protrusion, and the positioning sleeve 215 is rotatably connected to it through a sealed bearing. The filter element 22 and the protrusion on the cover 212 are sealed. With this setting, the obstruction of the cover 212 to the filter element 22 is reduced when the filter element 22 rotates, so that it can rotate normally, while maintaining the seal and preventing unfiltered air from entering the filter element 22 through the gap.

[0053] Specifically, the housing 21 also includes: a limiting member 216, installed at one end of the housing 211 and cooperating with the cover 212; there are several limiting members 216, which are arranged in a circumferential array. The limiting members 216 facilitate the quick positioning of the cover 212 onto the housing 211; a connecting block 217, fixed to one end of the connecting pipe 23; a screw 218, fixed to one side of the connecting block 217, with one end of the screw 218 passing through the positioning sleeve 215 and the cover 212 and extending to the outside; and a nut 219, threaded onto the surface of one end of the screw 218 and abutting against the surface of the cover 212.

[0054] The cover 212 has an installation hole for the screw 218 to pass through. The cover 212 and the screw 218 are sealed. When it is necessary to fix the cover 212 to the box body 211, after the filter element 22 is placed inside the box body 211 and one end is inserted into the mating sleeve 213 and the mating post 214, the cover 212 is moved around the outside of the screw 218. The protrusion on the cover 212 is inserted into the filter element 22, and the cover 212 is initially limited by the limiting member 216. The nut 219 is screwed onto the screw 218 and tightly abuts against the cover 212, thereby completing the fixing of the cover 212. A handle is fixed on one side of the cover 212 for easy operation.

[0055] Specifically, the differential pressure component 24 includes: a connecting pipe 241, one end of which is connected to the connecting pipe 23, and the other end of which passes through the housing 211 and is fixedly connected to the housing 211; a short block 242, fixed to the inner wall of the connecting pipe 241; a piston 243, which slides on the inner wall of the connecting pipe 241 and cooperates with the transmission component 25; a seal is provided between the piston 243 and the connecting pipe 241; and a guide rod 244, which slides on the short block 242. One end of 244 is fixed to one side of piston 243; guide rod 244 passes through short block 242 and is slidably connected to it. The cross section of guide rod 244 is hexagonal. This arrangement prevents guide rod 244 from rotating when it moves on short block 242, thus preventing piston 243 from rotating when it moves. Spring 245 is sleeved on the surface of guide rod 244, and its two ends are fixed between the surface of piston 243 and the surface of short block 242, respectively.

[0056] With the setting of spring 245, in the initial state, spring 245 is in a naturally extended state, and piston 243 is located in the initial position inside connecting pipe 241 under the elastic force of spring 245. When generator set 1 is working normally, the pressure difference between the inner cavity of housing 211 and the inner cavity of connecting pipe 23 is small, and the airflow pressure is insufficient to overcome the elastic force of spring 245 to push piston 243 to move, or the airflow pressure can slightly overcome the elastic force of spring 245 to push piston 243 to move slightly. At this time, the transmission component 25 does not need the filter element 22 to rotate, so that the filter element 22 maintains a fixed filtration angle.

[0057] When the filter element 22 is partially blocked, the pressure difference between the inner cavity of the housing 211 and the inner cavity of the connecting pipe 23 gradually increases. The airflow pressure pushes the piston 243 to slide along the inner wall of the connecting pipe 241, compressing the spring 245. At the same time, it drives the guide rod 244 to move synchronously along the short block 242. After the piston 243 is displaced, it cooperates with the transmission component 25 to drive the filter element 22 to rotate, change the filtration angle, make full use of the non-blocked area of ​​the filter element 22, alleviate the partial blockage, and extend the single use time of the filter element 22. When the pressure difference further increases to the set threshold, the piston 243 moves to the preset position, fully triggering the action of the transmission component 25, which in turn drives the on / off component 42 to be energized, starts the drive component 41, and realizes the automatic switching of the two sets of filtration mechanisms 2.

[0058] Specifically, the transmission component 25 includes: a bevel gear 251, which is fixedly sleeved on the surface of the mating sleeve 213; a rotating rod 252, which rotates on the housing 211; a bevel gear 253, which is fixed to one end of the rotating rod 252 and meshes with the bevel gear 251; and a spur gear 254, which is fixed to the other end of the rotating rod 252. The rotating rod 252 is rotatably connected to the housing 211 through a sealed damping bearing. The rotation of the rotating rod 252 can drive the rotation of the bevel gear 253, which in turn drives the rotation of the bevel gear 251, thereby causing the mating sleeve 213, the mating post 214, and the filter element 22 to rotate, changing the fixed air-facing position of the filter element 22.

[0059] Specifically, the transmission component 25 also includes: a fixed block 255, fixed to the surface of the housing 211; a rotating sleeve 256, rotatably connected to the fixed block 255; the rotating sleeve 256 is rotatably connected to the fixed block 255 via a bearing; a round rod 257, sliding on the connecting pipe 241 and the rotating sleeve 256, one end of the round rod 257 being fixed to the surface of the piston 243; the round rod 257 passes through the connecting pipe 241 and is slidably connected to it, and a seal is provided between them. A ball 258 is embedded in the inner wall of the rotating sleeve 256; a guide groove 259 is formed on the surface of the first round rod 257, and the ball 258 slides in the guide groove 259; a ratchet 2510 has its inner ring fixedly fitted on the surface of the rotating sleeve 256; a second spur gear 2511 is fixedly fitted on the outer ring surface of the ratchet 2510 and meshes with the first spur gear 254; a cover 2512 is fixed to the inner wall of the box 211, and the mating sleeve 213 is rotatably connected to the cover 2512.

[0060] The ball bearing 258 is rotatably connected to the inner wall of the rotating sleeve 256. The guide groove 259 is divided into three parts: the first and third parts are horizontal grooves, and the second part is an arc groove. When the round rod 257 moves, the ball bearing 258 will not cause the rotating sleeve 256 to rotate when the first and third parts move, but the ball bearing 258 can cause the rotating sleeve 256 to rotate when the second part moves. When the piston 243 in the pressure differential component 24 pushes the round rod 257 axially under the action of the pressure differential, the guide groove 259 on the surface of the round rod 257 cooperates with the ball bearing 258 on the inner wall of the rotating sleeve 256, driving the rotating sleeve 256 to rotate. The rotation of sleeve 256 drives the ratchet 2510 fixed on its inner ring to rotate synchronously. The second sprocket 2511 on the outer ring of ratchet 2510 rotates accordingly and meshes with the first sprocket 254 to drive the rotating rod 252 and the second bevel gear 253 to rotate. The second bevel gear 253 meshes with the first bevel gear 251 to drive the docking sleeve 213 and the filter element 22 to rotate, thereby changing the filtration angle of the filter element 22, so that the non-clogged area of ​​the filter element 22 participates in filtration, alleviates local clogging, avoids the filter element 22 being fixed in the same air-facing position for a long time, causing unilateral clogging, and makes full use of the effective filtration area of ​​the filter element 22.

[0061] The rotation angle is controlled according to the pressure difference fed back by the pressure difference component 24. The rotation angle of the filter element 22 is matched with the pressure difference. When the pressure difference is small, the displacement of the piston-243 pushing the round rod-257 is small, the movement of the ball 258 in the second part of the guide groove 259 is short, and the rotation angle of the rotating sleeve 256 is small. As a result, the filter element 22 rotates at a small angle, only slightly adjusting the air intake position. The unblocked area at the edge of the filter element 22 can be used to alleviate local blockage. As the pressure difference gradually increases, the displacement of the piston-243 increases accordingly. The rotation angle of the round rod-257 driving the rotating sleeve 256 increases, and the rotation angle of the filter element 22 increases accordingly. This allows a larger unused area of ​​the filter element 22 to enter the air intake filtration position, further increasing the air intake flow area and continuously alleviating blockage. The ratchet 2510 ensures that when the round rod-257 is reset, the round gear-254 and the filter element 22 will not rotate in opposite directions, avoiding repeated disturbances in the angle of the filter element 22 and ensuring stable air intake.

[0062] Example 3, referring to Figures 2-9 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0063] Specifically, the driving component 41 includes: a square rod 411 fixed between the surfaces of the two housings 211; a toothed plate 412 slidably sleeved on the surface of the square rod 411; two electromagnetic components 413 fixed to the surfaces of both ends of the square rod 411; two permanent magnets 414 fixedly sleeved on the surfaces of both ends of the toothed plate 412 and cooperating with the electromagnetic components 413; a gear 415 fixedly sleeved on the surface of the three-way valve 3 and meshing with the toothed plate 412; and two limiting blocks 416 fixedly sleeved on the surface of the toothed plate 412 and cooperating with the gear 415. The electromagnetic components 413 are electrically connected to the switching component 42 via wires. The limiting blocks 416 limit the rotation angle of the gear 415, preventing excessive rotation of the three-way valve 3 from causing connection failure and ensuring switching accuracy.

[0064] In the initial state, the on / off element 42 is not energized, both electromagnetic elements 413 are in a non-magnetic state, the missing gear 415 is engaged with the toothed plate 412 and is in a stationary state, and the three-way valve 3 maintains its current connection with one of the filter mechanisms 2. When the differential pressure feedback from the differential pressure element 24 reaches the set threshold, the transmission element 25 runs and drives the on / off element 42 to be energized. The on / off element 42 outputs power to the drive element 41. According to the direction of the filter mechanism 2 that needs to be switched, one electromagnetic element 413 is controlled to be energized while the other remains de-energized. The energized electromagnetic element 413 generates magnetism and generates a repulsive force with the permanent magnet 414 at the corresponding end of the toothed plate 412, pushing the toothed plate 412 to slide along the axial direction of the square rod 411, causing the missing gear 415 to rotate around the valve stem of the three-way valve 3. The limiting blocks 416 at both ends of the toothed plate 412 move synchronously. When the missing gear 415 rotates to the preset angle, the limiting blocks 416 abut against the missing gear 415, restricting the missing gear 415 from continuing to rotate.

[0065] When the differential pressure component 24 on the clogged filter mechanism 2 returns to normal, the spring 245 and the round rod 257 reset, the power supply component 42 is de-energized, and the electromagnetic component 413 of the drive component 41 loses its magnetism. The staff can then disassemble and replace the filter element 22 that needs to be replaced on the clogged filter mechanism 2. After the filter element 22 is replaced, the filter mechanism 2 returns to standby status, preparing for the next switch of the filter mechanism 2, ensuring that the two sets of filter mechanisms 2 can work alternately in a cycle, and ensuring the continuity of air intake filtration of the generator set 1.

[0066] Specifically, the switching component 42 includes: an insulating ring 421, which is fixed to the surface of the fixing block 255 by a support rod; a conductive ring 422, which is fixed to one side of the insulating ring 421; an insulating ring 423, which is sleeved on the surface of the round rod 257; a conductive ring 424, which is fixed to one side of the insulating ring 423 and cooperates with the conductive ring 422; a round block 425, which is fixed to one end of the round rod 257; a spring piece 426, whose two ends are respectively fixed between one side of the round block 425 and one side of the insulating ring 423; and a short rod 427, which slides on the round block 425 and whose one end is fixed to one side of the insulating ring 423.

[0067] There are two on / off switching components 42, and several spring contacts 426 arranged in a circular array. A short rod 427 passes through and slides through the circular block 425. The two on / off switching components 42 correspond to two sets of filter mechanisms 2 working independently, with the same working principle. In the initial state, the filter mechanism 2 is not blocked, the pressure difference is normal, the first circular rod 257 is in the initial position, the second conductive ring 424 is separated from the first conductive ring 422, the on / off switching component 42 is de-energized, the driving component 41 is stationary, and the three-way valve 3 maintains the current connected state. When the filter... When the pressure difference increases due to blockage of core 22, piston 243 in pressure difference component 24 pushes rod 257 to move, which in turn moves block 425 and insulating ring 423 until conductive ring 424 and conductive ring 422 are in contact. The switching component 42 is then connected and energized to drive component 41, triggering the switching of filter mechanism 2. After a period of time, pressure difference component 24 returns to normal, piston 243 resets and rod 257 returns to its initial position, causing conductive ring 424 to separate from conductive ring 422, and the switching component 42 is de-energized.

[0068] Specifically, the housing 211 has an annular groove 2121 inside, and the limiting member 216 includes: a groove 2161, which is opened inside the housing 211 and communicates with the annular groove 2121; a locking block 2162, which slides in the groove 2161 and cooperates with the housing cover 212; a sliding groove 2163, which is opened on the inner wall of the groove 2161; a slider 2164, which is fixed to the surface of the locking block 2162 and slides in the sliding groove 2163; and a second spring 2165, whose two ends are respectively fixed to the surface of the slider 2164 and the inner wall of the sliding groove 2163.

[0069] One end of the locking block 2162 is provided with a slope. With this design, when the box cover 212 is installed, the edge of the box cover 212 presses against the slope of the locking block 2162, forcing the locking block 2162 to slide inward along the groove 2161. The slider 2164 moves synchronously in the slide groove 2163, and the second spring 2165 is compressed. When the box cover 212 is installed in place, its edge contacts the slope end of the locking block 2162, and the second spring 2165 resets and pushes the locking block 2162 to slide outward, thus achieving the initial limiting and fixing of the box cover 212.

[0070] Specifically, the filter mechanism 2 also includes a feedback element 26 installed on the housing 211, and the feedback element 26 cooperates with the limiting element 216. The feedback element 26 includes: a cylinder 261, fixed to one side of the housing 211; a piston 262, sliding on the inner wall of the cylinder 261; a connecting pipe 263, the other end of which is connected to one end of the cylinder 261, and the other end is fixed to the surface of the housing 211 and connected to the annular groove 2121; and a connecting pipe 264, one end of which is connected to the connecting pipe 23, and the other end of which passes through the housing 211 and is fixedly connected to the housing 211. Connect; Piston 265, sliding on the inner wall of connecting pipe 264; Round rod 266, sliding on cylinder 261 and connecting pipe 264, with both ends fixed between one side of piston 262 and one side of piston 265 respectively; Short block 267, fixed on the inner wall of connecting pipe 264; Guide rod 268, sliding on short block 267, with one end of guide rod 268 fixed to one side of piston 265; Spring 269, sleeved on the surface of guide rod 268, with both ends fixed between the surface of piston 265 and the surface of short block 267 respectively.

[0071] A seal is made between piston 262 and cylinder 261, and a seal is made between piston 3 265 and connecting pipe 264. Guide rod 268 passes through short block 267 and is slidably connected to it. Round rod 266 passes through connecting pipe 264 and is slidably connected to it. Round rod 266 is sealed between connecting pipe 264 and cylinder 261. Guide rod 268 passes through short block 267 and is slidably connected to it. The cross-section of guide rod 268 is hexagonal. This design prevents guide rod 268 from rotating when it moves on short block 267, thus preventing piston 3 265 from rotating when it moves.

[0072] The space between the cylinder 261 and piston 262, the connecting pipe 263 and the annular groove 2121 are all filled with incompressible fluid. In the initial state, the feedback element 26 is in standby state, the spring 3 269 is in naturally extended state, the piston 262 is in the initial position of the cylinder 261, and the round rod 266 is in the initial position at the same time. At this time, the pressure difference between the box 211 and the connecting pipe 23 is normal, the feedback element 26 is not triggered, and the locking block 2162 in the limiting element 216 is in the extended state, which is tightly fitted with the box cover 212 to achieve the limiting and fixing of the box cover 212 and prevent the box cover 212 from loosening.

[0073] When filter element 22 becomes clogged, causing an increase in the pressure difference between housing 211 and connecting pipe 23, the air pressure pushes piston 3 265 to move within connecting pipe 264, thereby compressing spring 3 269. Simultaneously, this causes rod 266 and piston 262 to move synchronously, forcing the fluid in cylinder 261 through connecting pipe 263 into annular groove 2121. This, in turn, pushes locking block 2162 to move, causing the non-sloping end of locking block 2162 to contact housing cover 212, thus achieving continuous locking of limit component 216 and ensuring the housing cover 212 is stable. When personnel attempt to... (The sentence is incomplete and ends abruptly.) When the filter mechanism 2 is not in normal operation and the cover 212 is removed, the feedback component 26 locks the limit component 216, and the locking block 2162 will be tightly attached to the edge of the cover 212, making it impossible to push or remove the cover 212. This structurally prevents unfiltered gas from entering. Only when the pressure difference returns to normal will the spring 3 269 push the piston 3 265 to reverse and reset, causing the round rod 266 and the piston 262 to return to their initial positions. Only then will the locking command on the limit component 216 be released, and the staff can then smoothly remove the cover 212 for subsequent maintenance operations.

[0074] Example 4, refer to Figures 1-12 This is the fourth embodiment of the present invention, which is based on the first three embodiments.

[0075] Specifically, the electromagnetic component 413 includes a circular plate 4131 fixedly sleeved on the surface of the square rod 411. An electromagnet 4132 and a rubber sleeve 4133 are fixed on one side of the circular plate 4131 respectively. An iron ring 4134 is embedded on one side of the rubber sleeve 4133. Both the electromagnet 4132 and the iron ring 4134 cooperate with the permanent magnet 414.

[0076] When one electromagnet 4132 is energized, it generates magnetism, which in turn generates a repulsive force on the corresponding permanent magnet 414. This force overcomes the attraction between the permanent magnet 414 and its corresponding iron ring 4134, causing the permanent magnet 414 and the toothed plate 412 to move. This, in turn, drives the rotation of the missing gear 415 and the valve stem of the three-way valve 3, thus achieving the switching of the filter mechanism 2. The rubber sleeve 4133 acts as a buffer, shock absorber, and anti-collision agent, preventing direct contact between the electromagnet 4132 and the permanent magnet 414, which could cause impact and wear. Through the setting of the iron ring 4134, after the permanent magnet 414 on the other side comes into contact with the rubber sleeve 4133 on the other side, the permanent magnet 414 can be magnetically attracted to the iron ring 4134 on the rubber sleeve 4133, which acts as a limit, preventing the toothed plate 412 from moving easily. This ensures the stability of the valve stem and valve ball of the three-way valve 3, and the filter mechanism 2 can reliably maintain its current working state after switching.

[0077] Specifically, housing 21 also includes: a ring plate 2110, fixed to the inner wall of housing 211; a ring body 2111, rotating on the ring plate 2110 and movably sleeved on the surface of filter element 22; an air intake hopper 2112, connected to the top of housing 211; a baffle 2113, which is fixed to the surface of housing 211 by bolts; and an alarm is fixed to the surface of housing 211.

[0078] The ring body 2111 is rotatably connected to the ring plate 2110 via a sealed bearing. The two ends of the ring plate 2110 are fixed to the inner wall of the housing 211. There is a gap between the ring plate 2110 and the housing 211. The ring plate 2110 is used to support the rotation of the ring body 2111, providing support for the rotation of the filter element 22. The air inlet hopper 2112 is used to guide external gas into the interior of the housing 211, realizing air intake guidance. The baffle 2113 plays a protective role for its internal components. The alarm is used to issue an alarm when the filter element 22 is clogged or has abnormal pressure and needs to be replaced, reminding the staff to deal with it in time and ensuring the safe and reliable operation of the filter mechanism 2. This is existing technology, and the working principle of this part is existing technology, which can be clearly understood by those skilled in the art, and will not be described in detail here.

[0079] The filter element 22 includes a screen cylinder, a cap fixed to one end of the screen cylinder by screws, and a core body disposed inside the screen cylinder. A mating groove 221 is formed on the surface of one end of the screen cylinder. A mating sleeve 213 is inserted into one end of the screen cylinder. A positioning sleeve 215 is inserted into the cap. The screen cylinder has an insertion hole for mating with the mating sleeve 213, and the cap has a round hole for mating with the positioning sleeve 215.

[0080] When the generator set 1 is running, outside air enters the housing 211 through the air intake hopper 2112, is filtered by the filter element 22, and is then sent into the generator unit through the connecting pipe 23, the three-way valve 3, and the air intake pipe 11. When the filter element 22 is partially blocked, a pressure difference is formed between the housing 211 and the connecting pipe 23. Under the action of air pressure, the piston 243 in the pressure difference component 24 overcomes the elastic force of the spring 245 and pushes the round rod 257 to move axially. The round rod 257 drives the rotating sleeve 256 to rotate through the guide groove 259 and the ball 258. Through the ratchet 2510, the second round gear 2511, the first round gear 254, and the bevel gear, the docking sleeve 213 and the filter element 22 rotate, automatically switching the non-blocked area to participate in filtration, thereby improving the utilization rate of the filter element 22.

[0081] When the pressure difference reaches the threshold, the round rod 257 drives the conductive ring 424 of the switching component 42 to contact and conduct with the conductive ring 422, triggering the drive component 41 to work. The electromagnet 4132 in the electromagnetic component 413 is energized and generates magnetism, forming a repulsive force with the permanent magnet 414. This overcomes the attraction between the iron ring 4134 and the permanent magnet 414, pushing the toothed plate 412 to slide along the square rod 411. This drives the missing gear 415 to rotate the valve stem of the three-way valve 3, switching the air intake passage to the backup filter mechanism 2, achieving automatic switching without stopping the machine. The rubber sleeve 4133 buffers the impact, and the magnetic attraction of the iron ring 4134 achieves self-locking in place, ensuring the stability of the valve position.

[0082] Feedback component 26 monitors the pressure difference between housing 211 and connecting pipe 23 in real time. When the pressure difference is abnormal, the piston 262 and rod 266 are driven by incompressible fluid to lock the cover 212 by the locking block 2162 on the limit component 216, prohibiting maintenance operations. Only when the pressure difference returns to normal, the spring 269 resets and the locking block 2162 unlocks, can the cover 212 be removed to prevent unfiltered gas from entering.

[0083] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A prefabricated energy-saving diesel generator set, characterized in that: include, The generator set (1) includes an intake pipe (11) connected thereto. A filter mechanism (2) is installed on the generator set (1), and there are two sets of them. It is used to filter the air entering the generator set (1). The filter mechanism (2) includes: The housing (21) is fixed to the generator set (1) by a support plate; The filter element (22) is installed in the inner cavity of the housing (21), and one end of it has a mating groove (221). A connecting pipe (23) is connected to the housing (21); The differential pressure component (24) is installed on the connecting pipe (23) and the shell (21) to provide feedback on the differential pressure between the inner cavity of the shell (21) and the inner cavity of the connecting pipe (23); The transmission component (25) is mounted on the housing (21) and the differential pressure component (24) and is used to drive the filter element (22) to rotate and change the position of the air intake. A three-way valve (3) is connected between the intake pipe (11) and the connecting pipe (23); The switching mechanism (4) is installed on the housing (21) and the transmission component (25) and is used to control the opening and closing of the three-way valve (3) and the two sets of filter mechanisms (2); A drive unit (41) is mounted on the housing (21) and the three-way valve (3) for driving the three-way valve (3) to open and close with one of the filter mechanisms (2); The on / off switch (42) is installed on the transmission component (25). After the differential pressure component (24) reports a large differential pressure, the transmission component (25) operates, which energizes the on / off switch (42), drives the three-way valve (3) to switch and connect with another set of filter mechanisms (2).

2. The prefabricated energy-saving diesel generator set as described in claim 1, characterized in that: The housing (21) includes: The housing (211) is fixed to the generator set (1) by a support plate, and the connecting pipe (23) passes through the housing (211) and is fixedly connected to it; The lid (212) is installed on one side of the box body (211); The connecting sleeve (213) is rotatably sleeved at one end of the connecting pipe (23), and one end of the connecting sleeve (213) is inserted into one end of the filter element (22); The docking post (214) is fixed to the surface of the docking sleeve (213), and one end of the docking post (214) is inserted into the docking groove (221) on one end of the filter element (22); The positioning sleeve (215) rotates on one side of the box cover (212), and one end of the positioning sleeve (215) is inserted into the other end of the filter element (22).

3. The prefabricated energy-saving diesel generator set as described in claim 2, characterized in that: The housing (21) also includes: The limiting component (216) is installed at one end of the box body (211) and cooperates with the box cover (212); Connecting block (217) is fixed to one end of connecting pipe (23); The screw (218) is fixed to one side of the connecting block (217), and one end of the screw (218) passes through the positioning sleeve (215) and the box cover (212) and extends to the outside; The nut (219) is threaded onto one end of the screw (218) and abuts against the surface of the cover (212).

4. The prefabricated energy-saving diesel generator set as described in claim 2 or 3, characterized in that: The differential pressure component (24) includes: Connecting pipe 1 (241), one end of which is connected to connecting pipe (23), and the other end of which passes through into box (211) and is fixedly connected to box (211); Short block 1 (242) is fixed to the inner wall of connecting pipe 1 (241); Piston 1 (243) slides on the inner wall of connecting pipe 1 (241) and cooperates with transmission component (25); Guide rod 1 (244) slides on short block 1 (242), and one end of guide rod 1 (244) is fixed to one side of piston 1 (243); Spring 1 (245) is sleeved on the surface of guide rod 1 (244), and its two ends are respectively fixed between the surface of piston 1 (243) and the surface of short block 1 (242).

5. The prefabricated energy-saving diesel generator set as described in claim 4, characterized in that: The transmission component (25) includes: A bevel gear (251) is fixedly sleeved on the surface of the mating sleeve (213); Rotating rod (252) rotates on housing (211); The second bevel gear (253) is fixed to one end of the rotating rod (252) and meshes with the first bevel gear (251); A circular gear (254) is fixed to the other end of the rotating rod (252).

6. The prefabricated energy-saving diesel generator set as described in claim 5, characterized in that: The transmission component (25) also includes: A fixing block (255) is fixed to the surface of the box (211); The rotating sleeve (256) is rotatably connected to the fixed block (255); The first round rod (257) slides on the first connecting pipe (241) and the rotating sleeve (256), and one end of the first round rod (257) is fixed to the surface of the first piston (243); Ball bearings (258) are embedded in the inner wall of the rotating sleeve (256); A guide groove (259) is formed on the surface of the round rod (257), and the ball (258) slides in the guide groove (259); The ratchet (2510) has its inner ring fixedly fitted onto the surface of the rotating sleeve (256); The second spur gear (2511) is fixedly sleeved on the outer ring surface of the ratchet (2510) and meshes with the first spur gear (254); The cover (2512) is fixed to the inner wall of the box (211), and the mating sleeve (213) is rotatably connected to the cover (2512).

7. The prefabricated energy-saving diesel generator set as described in claim 2 or 3, characterized in that: The drive unit (41) includes: A square rod (411) is fixed between the surfaces of the two boxes (211); The toothed plate (412) is slidably sleeved on the surface of the square rod (411); Two electromagnetic components (413) are fixed to the surfaces of both ends of the square rod (411); Two permanent magnets (414) are fixedly sleeved on the two ends of the toothed plate (412) and cooperate with the electromagnetic component (413); The missing gear (415) is fixedly sleeved on the valve stem surface of the three-way valve (3) and meshes with the toothed plate (412).

8. The prefabricated energy-saving diesel generator set as described in claim 6, characterized in that: The switching element (42) includes: An insulating ring (421) is fixed to the surface of a fixing block (255) by a support rod; Conductive ring 1 (422) is fixed to one side of insulating ring 1 (421); Insulating ring two (423) is fitted onto the surface of round rod one (257); Conductive ring two (424) is fixed to one side of insulating ring two (423) and cooperates with conductive ring one (422).

9. The prefabricated energy-saving diesel generator set as described in claim 3, characterized in that: The housing (211) has an annular groove (2121) inside, and the limiting member (216) includes: The groove (2161) is located inside the box (211) and is connected to the annular groove (2121); The locking block (2162) slides within the groove (2161) and engages with the box cover (212); A chute (2163) is formed on the inner wall of the trough (2161); The slider (2164) is fixed to the surface of the block (2162) and slides in the groove (2163); Spring 2 (2165) is fixed at both ends to the surface of slider (2164) and the inner wall of groove (2163).

10. The prefabricated energy-saving diesel generator set as described in claim 9, characterized in that: The filtration mechanism (2) further includes a feedback element (26) installed on the housing (211), and the feedback element (26) cooperates with the limiting element (216). The feedback element (26) includes: The cylindrical body (261) is fixed to one side of the box body (211); Piston 2 (262) slides on the inner wall of cylinder (261); The connecting pipe (263) has one end connected to one end of the cylinder (261) and the other end fixed to the surface of the box (211) and connected to the annular groove (2121); Connecting pipe 2 (264), one end of which is connected to connecting pipe (23), and the other end of which passes through into box (211) and is fixedly connected to box (211); Piston 3 (265) slides on the inner wall of connecting pipe 2 (264); The second round rod (266) slides on the cylinder (261) and the second connecting pipe (264), and its two ends are fixed between one side of the second piston (262) and one side of the third piston (265), respectively.

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