Environment-friendly silent diesel generating set

By employing a multi-layered noise reduction structure and a large-area opening for maintenance doors, the problems of poor noise reduction and inconvenient maintenance of silent diesel generator sets have been solved, achieving more efficient noise control and environmentally friendly exhaust gas treatment.

CN223923142UActive Publication Date: 2026-02-17SHANDONG KANGWO HLDG CO LTD
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Patent Information

Application Number
CN202520261801.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-19
Publication Date
2026-02-17
Estimated Expiration
2035-02-19

AI Technical Summary

Technical Problem

Existing silent diesel generator sets have poor noise reduction effects, small access doors that affect operation, and inadequate exhaust gas treatment for environmental protection.

Method used

The design includes components such as the enclosure assembly, access door, exhaust access panel, air inlet baffle, sound-absorbing cotton, and after-treatment silencer, forming a multi-layer noise reduction structure. The after-treatment silencer is installed inside the enclosure, and together with the large-area access door and external oil filler, the operation process is simplified.

Benefits of technology

It effectively reduces noise transmission, improves maintenance convenience, reduces emissions of harmful pollutants, and meets environmental protection requirements.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223923142U_ABST
Patent Text Reader

Abstract

The utility model discloses an environment-friendly silent diesel generating set which comprises a containing body used for containing a diesel generating set, and the containing body is provided with an opening structure convenient to install, overhaul and maintain and a noise reduction and sound absorption component. The supporting and moving assembly is connected with the accommodating main body and is used for supporting the whole equipment and realizing moving operation; the power and power generation unit is mounted in the accommodating main body, is driven by a diesel engine to generate power, and is provided with an electrical interface connected with external equipment for power supply; and the exhaust treatment module is connected with the exhaust end of the power and power generation unit and used for treating and discharging waste gas, and the exhaust treatment module comprises a noise reduction and protection device so as to reduce the influence of noise and the external environment. The silencing and noise reduction effects are effectively improved, the five-door large-area opening and exposing effects are conveniently formed on the front side, the rear side and the left side, the opening and exposing space is enlarged, the influence on the personnel in the maintenance process is reduced, and the personnel can conveniently and better carry out maintenance work such as three-filter replacement and maintenance.
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Description

Technical Field

[0001] This utility model relates to the field of diesel generator set quiet technology, specifically an environmentally friendly quiet diesel generator set. Background Technology

[0002] Diesel generator sets generate significant noise during operation. Soundproof enclosures are a common hardware measure used with generator sets to reduce noise. In addition to indoor environments such as engine rooms and power distribution rooms, they are also used in buildings and other environments where noise reduction is critical, replacing the main power supply system as an emergency power source. Existing diesel generator sets require the replacement of three filters, one oil, and one fluid during maintenance. The three filters refer to the oil filter, methanol filter, and air filter; the one oil is engine oil; and the one fluid is antifreeze. Additionally, the daily fuel tank, as an accessory to the generator set, also needs timely cleaning and maintenance. Besides maintenance, the operating surface should be simple, comfortable, and easy to operate during normal maintenance.

[0003] Currently, the main noise reduction methods for silent diesel generator sets are: lining the inside of the enclosure with sound-absorbing cotton, using louvers for the air inlet, and directly exhausting the air through the louvers. The enclosure has upper and lower door frames for maintenance, and the fuel tank is welded to the base frame. The current disadvantages of methanol-based silent generator sets include:

[0004] 1. The air inlet and outlet are louvered structures with large openings. When the machine is running, a significant portion of the wind noise and machine noise will escape from the enclosure. Although this can reduce noise to some extent, the noise control effect is not very good. 2. The soundproof enclosure has upper and lower door frames. Under the same enclosure dimensions, the opening size of the door is small when the unit is being maintained, which will affect the maintenance process. In view of this, this application proposes an environmentally friendly, silent diesel generator set. Utility Model Content

[0005] The purpose of this invention is to provide an environmentally friendly, quiet diesel generator set to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an environmentally friendly, quiet diesel generator set, comprising:

[0007] The housing body is used to house the diesel generator set. The housing body has an opening structure for easy installation, inspection and maintenance, as well as noise reduction and sound absorption components.

[0008] A support and movement component, connected to the housing body, is used to support the entire device and enable movement.

[0009] The power and generation unit is installed inside the housing, is driven by a diesel engine to generate electricity, and has an electrical interface for connecting to external equipment for power supply.

[0010] An exhaust treatment module, connected to the exhaust end of the power and generator unit, is used to treat and discharge exhaust gas. The exhaust treatment module includes a noise reduction and protection device to reduce noise and the impact of the external environment.

[0011] Preferably, the housing body includes a housing assembly and detachable side panels and door panels. The housing assembly constitutes the main protective space. The side panels and door panels are located on different sides of the housing assembly and are connected in a detachable manner to facilitate the maintenance of internal components. Sound-absorbing cotton is fixedly connected to the inner surfaces of the housing assembly and each side panel and door panel.

[0012] Preferably, the door panel includes access doors on both sides of a U-shaped hanger that are hinged and rotatably mounted on the front, top, and rear sides of the enclosure assembly. There are at least two access doors, and the enclosure assembly is configured with openings corresponding to the access doors. The access doors are equipped with locks. An exhaust access panel is detachably mounted on the left side of the enclosure assembly by screws, and an electrical cabinet assembly is embedded and fixed on the right side of the enclosure assembly.

[0013] Preferably, the lower right corner of the front side of the housing assembly is provided with an external oil filler port, the top left side is provided with a water filler cap, and the top left side is also provided with an air inlet. An air inlet baffle is fixedly installed inside the air inlet, and sound-absorbing cotton is fixedly connected to the bottom solid part of the air inlet baffle.

[0014] Preferably, the support and movement assembly includes a chassis, with drag rings fixedly connected to both sides of the chassis, a forklift hole on the front side, a diesel generator set mounted on the top of the chassis, and the chassis being fixedly connected to the bottom of the housing assembly.

[0015] Preferably, the power and generation unit includes a base oil tank, a radiator assembly, an engine assembly, a generator assembly, and a battery pack, all fixedly mounted on the top of the chassis. The base oil tank's filler neck is connected to an external filler neck. The radiator assembly's water inlet extends to the top of the tank assembly and is threadedly connected to the filler neck cap. The engine assembly is sequentially connected to the radiator assembly and the generator assembly. The battery pack is electrically connected to the generator assembly and the engine assembly. The generator assembly's exhaust port is connected to an exhaust treatment module.

[0016] Preferably, an engine support beam is fixedly installed between the bottom of the engine assembly and the bottom of the base oil tank, and a motor support beam is fixedly installed between the bottom of the generator assembly and the base oil tank.

[0017] Preferably, the exhaust treatment module includes a muffler support fixedly installed on the top left side of the chassis. The working principle of the muffler support is to support the aftertreatment muffler. The aftertreatment muffler is fixedly installed on the top of the muffler support. The aftertreatment muffler is provided with a muffler outlet pipe extending from the top to the top of the air inlet baffle. The top of the muffler outlet pipe is movably covered with a rain cap. The aftertreatment muffler is provided with a muffler inlet pipe, which is connected to the exhaust pipe of the power and generator unit.

[0018] Preferably, two hinges are fixedly installed on the opposing sides of the two front and rear doors of the housing assembly, respectively, and the maintenance doors are rotatably connected to the housing assembly through the corresponding two hinges.

[0019] Preferably, the two opposing inspection doors are fitted with anti-collision pads fixedly connected to the outside of the housing assembly on opposite sides, and an exhaust vent is provided on the right side of the front of the housing assembly. Two lifting lugs are fixedly connected to the top of the U-shaped hanger, and two latches are fixedly connected to both sides of the U-shaped hanger. The latches are compatible with the corresponding door locks. The top of the air inlet baffle is provided with a movable through hole for the top of the muffler exhaust pipe to move through.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. Through the combination of the housing assembly, access door, exhaust access panel, air inlet baffle, sound-absorbing cotton, aftertreatment muffler, exhaust pipe, muffler air inlet pipe, muffler air outlet pipe and rain cap, it can reduce the noise of the exhaust gas emitted by the engine assembly and further surround and absorb sound noise from the outside. The aftertreatment muffler is set separately inside the housing assembly to effectively isolate noise. In addition, the opening at the top for installing the air inlet baffle is small, which can effectively reduce the transmission of wind noise and machine noise, and effectively improve the noise reduction effect.

[0022] 2. With the cooperation of four inspection doors, hinges, anti-collision pads, and exhaust inspection panels, the four inspection doors can be opened and the exhaust inspection panel on the left side can be removed, achieving a large-area opening and exposure effect of five doors on the front, rear, and left sides. This increases the opening and exposure space, reduces the impact on personnel during maintenance, and facilitates better replacement of filters, maintenance, and other maintenance work. In addition, the external refueling port facilitates refueling directly from the outside.

[0023] 3. When treating exhaust gases, the urea tank is located inside the generator set's installation compartment, near the access door to the soundproof enclosure. The urea filling port faces outwards, facilitating urea addition. The tank's proximity to the engine assembly further shortens the urea injection distance, simplifying exhaust gas treatment. During routine maintenance or use, operators can easily add urea without complex procedures, improving work efficiency and allowing for timely monitoring of urea levels. Furthermore, in conjunction with the muffler and related components, it can effectively and promptly treat engine exhaust gases, reducing emissions of harmful pollutants such as nitrogen oxides, meeting environmental protection requirements, and minimizing environmental pollution.

[0024] This utility model, through a series of structures, can reduce the noise of exhaust gas emitted from the engine assembly and further surround and absorb sound from the outside. In conjunction with the separate placement of the aftertreatment muffler inside the housing assembly for effective noise isolation, and the smaller opening at the top for mounting the air intake baffle, it effectively improves the noise reduction effect. It also facilitates the creation of a large-area opening for the five doors on the front, rear, and left sides, increasing the opening and exposure space, reducing the impact on personnel during maintenance, and making it easier for personnel to replace the three filters, perform maintenance, and other repair work. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of an environmentally friendly, silent diesel generator set proposed in this utility model;

[0026] Figure 2 This is an exploded structural diagram of an environmentally friendly, silent diesel generator set proposed in this utility model.

[0027] In the diagram: 1. Housing assembly; 101. Water inlet cap; 102. Inspection door; 103. Exhaust inspection panel; 104. Electrical cabinet assembly; 105. External oil filler port; 106. Anti-collision pad; 107. Hinge; 108. Door lock; 109. Air inlet baffle; 2. U-shaped hanger; 3. Chassis; 301. Towing ring; 302. Muffler support; 303. Muffler treatment; 304. Muffler exhaust pipe; 305. Muffler intake pipe; 306. Rain cap; 307. Forklift hole; 4. Base fuel tank; 401. Engine support beam; 402. Motor support beam; 403. Battery pack; 404. Radiator assembly; 405. Exhaust pipe; 406. Generator assembly; 407. Engine assembly; 408. Urea tank. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Referring to the illustration, this embodiment provides an environmentally friendly, quiet diesel generator set, including:

[0030] The housing body is used to house the diesel generator set. The housing body 1 has an opening structure that facilitates installation, inspection and maintenance, as well as noise reduction and sound absorption components.

[0031] A support and movement component, connected to the housing body, is used to support the entire device and enable movement.

[0032] The power and generation unit is installed inside the housing, is driven by a diesel engine to generate electricity, and has an electrical interface for connecting to external equipment for power supply.

[0033] An exhaust treatment module, connected to the exhaust end of the power and generator unit, is used to treat and discharge exhaust gas. The exhaust treatment module includes a noise reduction and protection device to reduce noise and the impact of the external environment.

[0034] Furthermore, the housing body includes a housing assembly 1 and detachable side panels and door panels. The housing assembly 1 constitutes the main protective space. The side panels and door panels are located on different sides of the housing assembly 1 and are connected in a detachable manner to facilitate the maintenance of internal components. Sound-absorbing cotton is fixedly connected to the inner surfaces of the housing assembly 1 and each side panel and door panel.

[0035] Furthermore, the door panel includes inspection doors 102 on both sides of the U-shaped hanger 2 on the front, top and rear sides of the enclosure assembly 1 via hinges 107. There are at least two inspection doors 102, and each inspection door 102 is equipped with a door lock 108. An exhaust inspection plate 103 is detachably installed on the left side of the enclosure assembly 1 via screws, and an electrical cabinet assembly 104 is embedded and fixed on the right side of the enclosure assembly 1.

[0036] Furthermore, the lower right corner of the front side of the housing assembly 1 is provided with an external oil filler 105, the top left side is provided with a water filler cap 101, and the top left side is also provided with an air inlet. An air inlet baffle 109 is fixedly installed inside the air inlet, and sound-absorbing cotton is fixedly connected to the bottom solid part of the air inlet baffle 109.

[0037] Furthermore, the supporting and folding moving assembly includes a chassis 3, with drag rings 301 fixedly connected to both sides of the chassis 3, a forklift hole 307 opened on the front side, a diesel generator set being installed on the top of the chassis 3, and the chassis 3 being fixedly connected to the bottom of the housing assembly 1.

[0038] Furthermore, the power and generation unit includes a base oil tank 4, a radiator assembly 404, an engine assembly 407, a generator assembly 406, and a battery pack 403, all fixedly mounted on the top of the chassis 3. The oil filler port of the base oil tank 4 is connected to an external oil filler port 105. The water inlet of the radiator assembly 404 extends to the top of the housing assembly 1 and is threadedly connected to the water filler cap 101. The engine assembly 407 is sequentially connected to the radiator assembly 404 and the generator assembly 406. The battery pack 403 is electrically connected to the generator assembly 406 and the engine assembly 407. The exhaust port of the generator assembly 406 is connected to the exhaust treatment module.

[0039] Furthermore, an engine support beam 401 is fixedly installed between the top of the engine assembly 407 and the base oil tank 4, and a motor support beam 402 is fixedly installed between the generator assembly 406 and the base oil tank 4; a urea tank 408 is also provided on the base oil tank 4, and the urea tank 408 is located near the engine assembly 407, with the urea filling port of the urea tank 408 facing the maintenance door.

[0040] Furthermore, the exhaust treatment module includes a muffler support 302 fixedly installed on the top left side of the chassis 3. The working principle of the muffler support 302 is to support the aftertreatment muffler 303. The aftertreatment muffler 303 is fixedly installed on the top of the muffler support 302. The aftertreatment muffler 303 is provided with a muffler outlet pipe 304 extending from the top to the air intake baffle 109. The top of the muffler outlet pipe 304 is movably covered with a rain cap 306. The aftertreatment muffler 303 is provided with a muffler inlet pipe 305, which is connected to the exhaust pipe 405 of the power and generator unit.

[0041] Furthermore, two hinges 107 are fixedly installed on the opposing sides of the two front and rear inspection doors 102 and the housing assembly 1, and the inspection doors 102 are rotatably connected to the housing assembly 1 through the corresponding two hinges 107.

[0042] Furthermore, the two inspection doors 102 facing each other on the left and right are equipped with anti-collision pads 106 fixedly connected to the outside of the housing assembly 1 on the opposing side, and an exhaust vent is provided on the right side of the front of the housing assembly 1. The top of the U-shaped hanger 2 is fixedly connected with two lifting lugs, and both sides of the U-shaped hanger 2 are fixedly connected with two latches, which are compatible with the corresponding door locks 108. The top of the air inlet baffle 109 is provided with a movable through hole for the top of the silencer exhaust pipe 304 to move through.

[0043] The usage method of this embodiment is as follows: When the engine assembly 407 generates noise during operation, the housing assembly 1, the access door 102, the exhaust access panel 103, the air intake baffle 109, and the sound-absorbing cotton are used to surround, block, absorb, and reduce noise. In addition, the exhaust gas discharged from the engine assembly 407 enters the aftertreatment muffler 303. The aftertreatment muffler 303 silences the exhaust gas discharged from the engine assembly 407, reducing noise generation. By silencing and reducing the exhaust gas discharged from the engine assembly 407 and further surrounding and absorbing the noise from the outside, combined with the aftertreatment muffler 303 being set separately inside the housing assembly 1 for effective noise isolation, and with the small opening at the top for installing the air intake baffle 109, the transmission of wind noise and machine noise can be effectively reduced, effectively improving the noise reduction effect.

[0044] During internal maintenance operations, the two inspection doors 102 at the front and rear allow for opening and exposure of both sides. Alternatively, the screws on the exhaust inspection plate 103 can be removed to detach the exhaust inspection plate 103, achieving a large-area opening and exposure effect with five doors on the front, rear, and left sides. This increases the opening and exposure space, reduces the impact on personnel during maintenance, and facilitates better replacement of filters, inspections, and other maintenance work. In addition, the external oil filler port 105 allows for convenient refueling from the outside.

[0045] When treating exhaust gases, the urea tank is located inside the generator set's installation compartment, near the access door to the soundproof enclosure. The urea filling port faces outwards, facilitating urea addition. The tank's proximity to the engine assembly further shortens the urea injection distance, simplifying exhaust gas treatment. During routine maintenance or use, operators can easily add urea without complex procedures, improving work efficiency and allowing for timely monitoring of urea levels. Furthermore, in conjunction with the muffler and related components, it can further and effectively treat engine exhaust gases, reducing emissions of harmful pollutants such as nitrogen oxides, meeting environmental protection requirements, and minimizing environmental pollution.

[0046] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An environmentally friendly, silent diesel generator set, characterized in that, include: The housing body is used to house the diesel generator set. The housing body has an opening structure for easy installation, inspection and maintenance, as well as noise reduction and sound absorption components. A support and movement component, connected to the housing body, is used to support the entire device and enable movement. The power and generation unit is installed inside the housing, is driven by a diesel engine to generate electricity, and has an electrical interface for connecting to external equipment for power supply. An exhaust treatment module, connected to the exhaust end of the power and generator unit, is used to treat and discharge exhaust gas. The exhaust treatment module includes a noise reduction and protection device to reduce noise and the impact of the external environment.

2. The environmentally friendly, silent diesel generator set according to claim 1, characterized in that, The main enclosure includes a housing assembly (1) and detachable side panels and door panels. The housing assembly (1) constitutes the main protective space. The side panels and door panels are located on different sides of the housing assembly (1) and are connected in a detachable manner to facilitate the maintenance of internal components. Sound-absorbing cotton is fixedly connected to the inner surfaces of the housing assembly (1) and each side panel and door panel.

3. The environmentally friendly, silent diesel generator set according to claim 2, characterized in that, The door panel includes inspection doors (102) on both sides of a U-shaped hanger (2) that is rotatably mounted on the front, top and rear sides of the enclosure assembly (1) via hinges (107). There are at least two inspection doors (102), and the enclosure assembly (1) is set with an opening corresponding to the inspection door (102). The inspection door (102) is equipped with a door lock (108). An exhaust inspection plate (103) is detachably installed on the left side of the enclosure assembly (1) by screws. An electrical cabinet assembly (104) is embedded and fixed on the right side of the enclosure assembly (1).

4. The environmentally friendly, silent diesel generator set according to claim 2, characterized in that, The front right lower corner of the housing assembly (1) is provided with an external oil filling port (105), the top left side is provided with a water filling port cover (101), and the top left side is also provided with an air inlet. An air inlet baffle (109) is fixedly installed inside the air inlet, and sound-absorbing cotton is fixedly connected to the bottom solid part of the air inlet baffle (109).

5. The environmentally friendly, silent diesel generator set according to claim 1, characterized in that, The support and moving assembly includes a chassis (3), with drag rings (301) fixedly connected to both sides of the chassis (3) and a forklift hole (307) on the front. The top of the chassis (3) is used to install a diesel generator set, and the chassis (3) is fixedly connected to the bottom of the housing assembly (1).

6. The environmentally friendly, silent diesel generator set according to claim 1, characterized in that, The power and generation unit includes a base oil tank (4), a radiator assembly (404), an engine assembly (407), a generator assembly (406), and a battery pack (403) fixedly installed on the top of the chassis (3). The oil filling port of the base oil tank (4) is connected to the external oil filling port (105). The water inlet of the radiator assembly (404) extends to the top of the housing assembly (1) and is threadedly connected to the water filling cap (101). The engine assembly (407) is connected to the radiator assembly (404) and the generator assembly (406) in sequence. The battery pack (403) is electrically connected to the generator assembly (406) and the engine assembly (407). The exhaust port of the generator assembly (406) is connected to the exhaust treatment module.

7. The environmentally friendly, silent diesel generator set according to claim 6, characterized in that, An engine support beam (401) is fixedly installed between the bottom of the engine assembly (407) and the top of the base oil tank (4), and a motor support beam (402) is fixedly installed between the bottom of the generator assembly (406) and the base oil tank (4). A urea tank (408) is also provided on the base oil tank (4), and the urea tank (408) is close to the engine assembly (407).

8. The environmentally friendly, silent diesel generator set according to claim 1, characterized in that, The exhaust treatment module includes a muffler support (302) fixedly installed on the top left side of the chassis (3). The working principle of the muffler support (302) is to support the aftertreatment muffler (303). The aftertreatment muffler (303) is fixedly installed on the top of the muffler support (302). The aftertreatment muffler (303) is provided with a muffler outlet pipe (304) extending from the top to the top of the air inlet baffle (109). The top of the muffler outlet pipe (304) is movably covered with a rain cap (306). The aftertreatment muffler (303) is provided with a muffler inlet pipe (305). The muffler inlet pipe (305) is connected to the exhaust pipe (405) of the power and generator unit.

9. The environmentally friendly, silent diesel generator set according to claim 3, characterized in that, Two hinges (107) are fixedly installed between the two opposing inspection doors (1) and the housing assembly (1), and the inspection doors (102) are rotatably connected to the housing assembly (1) through the corresponding two hinges (107).

10. An environmentally friendly, silent diesel generator set according to claim 3, characterized in that, The two inspection doors (102) facing each other on opposite sides are fitted with anti-collision pads (106) fixedly connected to the outside of the housing assembly (1), and an exhaust vent is provided on the right side of the front of the housing assembly (1); the top of the U-shaped hanger (2) is fixedly connected with two lifting lugs, and the two sides of the U-shaped hanger (2) are fixedly connected with two latches, which are compatible with the corresponding door locks (108). The top of the air inlet baffle (109) is provided with a movable through hole for the top of the silencer exhaust pipe (304) to move through.