Silencing device for generator set container and generator set container

Abstract

The silencer for the generator set container comprises a metal cavity, a first connecting device with an opening is arranged at one end of the cavity, and the first connecting device is connected with a smoke exhaust pipeline of a generator set. A second connecting device with an opening and a smoke exhaust pipeline connected with the second connecting device are arranged at the other end of the cavity; more than three partition plates for dividing the chamber of the cavity into a plurality of sub-chambers are sequentially arranged between the side close to the first connecting device and the side close to the second connecting device along the length direction of the cavity. The projections of the holes in every two adjacent partition plates in the length direction of the cavity are crossed or not overlapped; the sum of the areas of all the open holes in the rear partition plate in the smoke discharging direction is larger than or equal to the sum of the areas of all the open holes in the front partition plate; the silencing device is excellent in noise reduction performance and can meet the requirements of the diesel generating set with high power and high noise.

Description

Technical Field

[0001] The utility model relates to the field of mechanical equipment, in particular to a silencer for a generator set container and a generator set container comprising the silencer. Background Art

[0002] Containerized generator sets are widely used as power generation equipment in hospitals, schools, factory computer rooms, airport transportation, large data centers, remote areas with insufficient electricity, etc. due to their compact structure, convenient transportation and easy deployment.

[0003] As the protective part of the generator, the role of the container cannot be ignored. It can reduce the noise of the unit, protect against rain, wind and sand, exposure to the sun, and heatstroke, making important contributions to the safe, reliable, and mobile power supply of the generator set.

[0004] The noise of diesel generator sets is very loud, reaching more than 100 decibels, causing a certain degree of interference to production and life. Existing diesel generator sets usually have a silencer installed at the exhaust pipe to reduce noise. The noise reduction level of existing silencers is limited, and overly sophisticated structures will increase costs. Therefore, in order to meet the needs of high-power and noisy diesel generator sets, it is urgent to develop products with better noise reduction effects and not too high costs. Utility Model Content

[0005] In order to solve the existing technical problems, the utility model provides a silencer for a generator set container with excellent noise reduction effect.

[0006] To achieve the above purpose, the technical solution of the embodiment of the utility model is implemented as follows:

[0007] The utility model relates to a silencer for a generator container, comprising a metal cavity with a predetermined length, a first connecting device with an opening is arranged at one end of the cavity, and the first connecting device is connected to the smoke exhaust pipe of the generator, and a second connecting device with an opening and a smoke exhaust channel connected to the second connecting device are arranged at the other end of the cavity. Three or more partitions are arranged in sequence from the side close to the first connecting device to the side close to the second connecting device along the length direction of the cavity to divide the chamber of the cavity into a plurality of sub-chambers; the edges of the partitions are tightly connected to the inner surface of the cavity respectively. Wherein, each partition has an opening, and the projections of the openings on each two adjacent partitions in the length direction of the cavity are crossed or non-overlapping; the sum of the areas of all the openings on the partition located at the rear in the direction of smoke exhaust is greater than or equal to the sum of the areas of all the openings on the partition located in front; the sum of the areas of all the openings on each partition is greater than the cross-sectional area of ​​the smoke exhaust pipe of the generator.

[0008] Preferably, the two adjacent partitions adopt any two of the following opening methods: a partition with M identical openings evenly opened at the center position, and the M openings are arranged in a honeycomb shape, where M is a natural number greater than or equal to 3; and a partition with L identical openings evenly opened at the peripheral position, and the L openings are evenly distributed around the periphery of the partition, where L is a natural number.

[0009] Preferably, hollow tubes are connected to the edges of the openings and along the length direction of the cavity, respectively, and the hollow tubes allow the front and rear sub-chambers thereof to communicate with each other.

[0010] Preferably, the partitions are evenly arranged in the length direction of the cavity.

[0011] Preferably, the partitions are all solid metal plates.

[0012] Preferably, the hollow tube is made of a mesh-shaped metal sheet.

[0013] Preferably, the first connecting device comprises an elbow pipe, a first flange, a reducer, a second flange and a shockproof bellows connected in sequence, the second flange is a customized flange, and the bellows is adaptably connected to the smoke exhaust pipe.

[0014] Preferably, a sound insulation material and a mesh-shaped metal sheet covering the sound insulation material are provided on the inner wall of the cavity; and the partitions are respectively fixedly connected to the mesh-shaped metal sheet on the inner wall of the cavity.

[0015] According to another aspect of the present application, a generator set container is further provided, which includes a container for accommodating the generator set and the silencer device described above according to the present application arranged on the top or inside of the container. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In the accompanying drawings (which are not necessarily drawn to scale), like reference numerals may describe similar components in different views. Like reference numerals with different letter suffixes may represent different examples of similar components. The accompanying drawings generally illustrate various embodiments discussed herein by way of example and not limitation.

[0017] Figure 1 A front view of the interior of a cavity of a silencer for a generator set container according to an embodiment of the utility model is shown.

[0018] Figure 2 A cross-sectional view taken along line AA' of a first partition of a silencer according to an embodiment of the present utility model is shown.

[0019] Figure 3A BB' cross-sectional view of a second partition of a silencer device according to an embodiment of the utility model is shown.

[0020] Figure 4 A front view of the interior of a cavity of a silencer device according to a specific embodiment of the utility model is shown. DETAILED DESCRIPTION

[0021] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0022] Figure 1 A silencer device according to a specific embodiment of the utility model is shown, comprising a metal cavity 1 with a predetermined length, a first connecting device 2 with an opening is provided at one end of the cavity 1, the first connecting device 2 is connected to a smoke exhaust duct 3 of a generator set, and a second connecting device 4 with an opening is provided at the other end of the cavity, through which a smoke exhaust channel 5, such as a smoke tail pipe, is connected.

[0023] The predetermined length of the cavity 1 is determined according to factors such as the power generation of the generator set, the size of the container, and the requirements for exhausting smoke (such as noise reduction requirements, etc.). For example, the cavity 1 is a rectangular box-shaped structure, and a sound insulation layer is provided on the inner surface. The sound insulation layer is made of sound insulation material, which can reduce the noise generated in the cavity 1.

[0024] The first connecting device 2 and the second connecting device 4 are usually made of flanges, but can include flanges, reducers, bellows and other components as needed. Figure 1 As shown, in one embodiment, the first connecting device 2 includes an elbow pipe 21, a first flange 22, a reducer 23, a second flange 24 and a shockproof bellows 25 connected in sequence. The first flange 22 is a standard flange. The second flange 24 is a custom flange customized according to the diameters of the reducer 23 and the bellows 25. The diameter of the bellows 25 is adapted to the diameter of the smoke exhaust pipe 3 so that the two can be better connected.

[0025] Optionally, the second connecting device 4 can also be connected to another silencer (i.e., the second silencer) according to the need for noise reduction, and then connected to the smoke exhaust channel 5. Optionally, the exhaust outlet of the smoke exhaust channel 5 can be equipped with a rodent-proof net 51; according to the need for smoke filtering of the generator set container, a smoke filtering device (not shown in the figure), such as a black smoke purifier, can be connected between the first connecting device 2 and the smoke exhaust pipe 3 of the generator set to filter pollutants in the smoke generated by the generator set.

[0026] In addition, in the cavity 1 of the muffler, three or more partitions are sequentially arranged along the length direction of the cavity 1 from the side close to the first connecting device 2 to the side close to the second connecting device 4 to divide the cavity 1 into a plurality of sub-chambers, and the edges of the partitions are tightly connected to the inner surface of the cavity 1, for example, by welding. The partitions are arranged at equal intervals, for example.

[0027] Each partition has openings. The projections of the openings on each two adjacent partitions in the length direction of the cavity 1 are intersecting or non-overlapping; the sum of the areas of all the openings on the partition located at the rear in the direction of smoke exhaust is greater than or equal to the sum of the areas of all the openings on the partition located at the front; the sum of the areas of all the openings on each partition is greater than the cross-sectional area of ​​the smoke exhaust pipe 3 of the generator set.

[0028] Optionally, the number of openings on every two adjacent partitions may be the same or different.

[0029] Optionally, the two adjacent partitions are partitions with any two of the following opening modes:

[0030] A partition having M identical openings uniformly opened at the center, wherein the M openings are arranged in a honeycomb shape, wherein M is a natural number greater than or equal to 3; and

[0031] A partition is provided with L identical openings evenly arranged at peripheral positions, and the L openings are evenly distributed at the periphery of the partition, wherein L is a natural number.

[0032] Optionally, the opening is circular, square or regular-sided, and the present application does not limit the shape of the opening.

[0033] For example, three openings are evenly formed on the first partition plate near the first connecting device 2, and the three openings are distributed in a honeycomb shape at the center of the first partition plate, such as Figure 2 12 openings are evenly arranged on the periphery of the second partition plate located behind the first partition plate in the exhaust direction, as shown in FIG. Figure 3As shown. The sum of the areas of the 12 openings on the second partition is equal to or greater than the sum of the areas of the 3 openings on the first partition. Five openings are evenly arranged on the third partition located behind the second partition in the exhaust direction. The five openings are distributed in a honeycomb shape at the center of the third partition, and the sum of the areas of the five openings on the third partition is equal to or greater than the sum of the areas of the 12 openings on the second partition. A fourth partition, a fifth partition, and the Kth partition may be arranged after the third partition, respectively. The number of partitions to be arranged is related to factors such as the noise reduction requirements of the smoke finally discharged from the silencer and the quality requirements of the smoke.

[0034] In the above example, a plurality of openings may be evenly provided on the periphery of the third partition, but the positions thereof are different from those of the openings on the second partition. For example, the openings may be provided on a circumference that is farther from the edge of the second partition than the circumference where the openings on the second partition are located, so that the openings on the second and third partitions do not overlap but intersect with each other. Optionally, the openings on the third partition may be the same as the openings on the second partition, but when the third partition is installed, the openings on the third partition are made to intersect with the openings on the second partition instead of overlapping with each other. Optionally, the openings on the third partition may be the same in number and position as those on the first partition, which is simpler to manufacture. Optionally, the second partition may be the same as the first partition, and the openings of the two partitions are staggered during installation.

[0035] It can be seen from the above example that the number of partitions arranged in the cavity 1 and the number of openings on each partition can be set as needed, as long as the openings on the front and rear adjacent partitions are staggered with each other and the sum of the areas of the openings on the rear partition of two adjacent partitions is equal to or greater than the sum of the areas of the openings on the front partition.

[0036] For another example, in the chamber of the cavity of the silencer, N partition groups are provided to divide the chamber of the cavity into a plurality of sub-chambers, wherein N is a natural number greater than or equal to 1. Each partition group includes a first partition and a second partition, wherein the first partition is close to the first connecting device 2, and the second partition is close to the second connecting device 4. Three or more first openings arranged in a honeycomb pattern are uniformly provided near the center on the first partition; a plurality of second openings are uniformly provided near the periphery on the second partition; the diameter of the second opening is smaller than the diameter of the first opening, and the sum of the areas of all the second openings is greater than or equal to the sum of the areas of all the first openings. A first partition, a second partition, or a third partition is also provided behind the N partition groups, wherein the diameter of the third opening on the third partition is smaller than or equal to the diameter of the second opening, and the arrangement of the third opening can be in the form of a honeycomb arrangement near the center, or in the form of a uniform arrangement near the periphery.

[0037] Optionally, hollow tubes are connected (e.g., welded) on the edges of the openings and along the length direction of the cavity. The hollow tube allows the two sub-chambers in front and behind to communicate with each other. Usually, the hollow tube is located behind the corresponding partition in the smoke exhaust direction. For example, when two partitions are set in the chamber of the cavity 1, the hollow tube on the first partition close to the first connecting device 2 is located on the first partition and between the first partition and the second partition, and the hollow tube on the second partition close to the second connecting device 4 is located on the second partition and between the second partition and the second connecting device 4.

[0038] When the utility model is used for a container for a generator set, the arrangement of the above partitions can be determined comprehensively according to the noise reduction requirements of the installed generator set, the size of the container, the difficulty of the processing technology, etc. For example, according to a specific embodiment of the utility model, a silencer for a generator set container, such as Figure 4 As shown, one (i.e., N=1) partition plate group is arranged in the chamber of the cavity 1, including a first partition plate 11 and a second partition plate 12, plus a third partition plate 13 which is completely identical to the first partition plate 11, so as to divide the chamber of the cavity 1 into four sub-chambers.

[0039] For example, the A-A' cross-sectional view of the first partition of the muffler device according to an embodiment of the present invention is as follows: Figure 2 As shown, the BB' cross-sectional view of the second separator 12 is as shown in Figure 3As shown, three first openings 111 are evenly formed near the center of the first partition 11 and the third partition 13; and 12 second openings 121 are evenly formed near the periphery of the second partition 12. The diameter of the second opening 121 is smaller than the diameter of the first opening 111, and the sum of the areas of all the second openings 121 is equal to the sum of the areas of all the first openings 111.

[0040] Through the above-mentioned layout of the openings, the openings on the partition are staggered and distributed, ultimately achieving a better sound-blocking effect.

[0041] Optionally, the sum of the areas of the openings (small holes) on the second partition 12 is close to or greater than the sum of the areas of the openings (large holes) on the first partition. The purpose of such a design is to ensure that the partition with small holes on the periphery does not hinder the emission of flue gas too much and is not prone to causing excessive exhaust pressure.

[0042] Optionally, the first baffle of each baffle group is arranged closer to the first connecting device 2, for example, the front view of the interior of the cavity of the silencer device in a specific embodiment Figure 4 As shown, the first partition plate 11 is close to the first connecting device 2 side.

[0043] In addition, according to the specific implementation of the utility model, Figure 4 As shown, on the first opening 111 of the first partition 11 in the cavity 1 of the silencer device for the generator set container, and along the length direction of the cavity, a first hollow tube 112 is fixedly connected (such as welded), and on the second opening 121 and along the length direction of the cavity, a second hollow tube 122 is fixedly connected (such as welded); the first hollow tube 112 and the second hollow tube 122 make the front and rear sub-chambers thereof communicate with each other.

[0044] The length of the hollow tube is limited so as not to interfere with the baffle behind it, so as to achieve appropriate obstruction of smoke and noise and not block the smoke conveying channel.

[0045] Optionally, the first hollow tube 112 and the second hollow tube 122 can be made of materials such as metal plates (such as steel plates, etc.), mesh-shaped metal sheets, etc., and mesh-shaped metal sheets are preferably used, which is beneficial to the noise reduction effect.

[0046] Optionally, a sound insulation material is provided on the inner wall of the cavity, and a mesh-shaped metal sheet is provided on the cavity side of the sound insulation material close to the cavity. Figure 2As shown, the cavity 1 of the silencer has a cylindrical shell 14, which includes, for example, an innermost mesh metal sheet 141, a middle sound insulation material 142, and an outermost steel plate layer 143. Such a shell structure enables the silencer to have a good sound absorption function.

[0047] The sound absorbing layer 142 can be set to have a certain thickness according to factors such as the power of the generator set. The sound absorbing material of the sound absorbing layer 142 can be selected as aluminum silicate wool, because it not only has a good sound absorption effect, but also can absorb some black smoke to achieve the primary filtering of black smoke. The inner wall of the silencer housing adopts a mesh-shaped metal sheet 141, and the purpose is also to facilitate the sound absorbing cotton to absorb noise.

[0048] Optionally, the partitions are all solid metal plates.

[0049] Optionally, the partitions are welded to the mesh-shaped metal sheets on the inner wall of the cavity. Figure 4 As shown in a specific embodiment, the first partition plate 11, the second partition plate 12 and the third partition plate 13 are welded to the mesh-shaped metal sheet on the inner wall of the cavity.

[0050] Optionally, the partitions are evenly arranged in the chamber of the cavity. Figure 4 In a specific embodiment shown, three partitions 11, 12 and 13 in the cavity are arranged at equal intervals. The purpose of evenly dividing the distances between the partitions is to facilitate processing, and in addition, this will not cause too much impact on the flow rate of the smoke.

[0051] Optionally, the sum of the areas of all the openings on each partition is larger than the cross-sectional area of ​​the generator exhaust pipe, so as not to affect the emission of the flue, and considering the difficulty of the processing technology, the number of openings can be determined and the size of the openings can be calculated.

[0052] Optionally, the cross-sectional area of ​​the chamber of the cavity 1 of the silencer is larger than the cross-sectional area of ​​the generator exhaust pipe. The reason for this is that since the exhaust speed of the smoke is fixed, in order to offset the obstruction of the smoke by the openings on the partition, the cross-sectional area is set larger when designing the silencer, otherwise the smoke duct is easily blocked, affecting the operation of the generator.

[0053] Optionally, the cavity 1 of the silencer device can be configured to be in various shapes, such as a cylindrical or rectangular parallelepiped structure, preferably a cylindrical shape.

[0054] Alternatively, if Figure 1As shown, the silencer is also equipped with a bracket 15, and the housing 14 of the cavity 1 of the silencer is fixedly connected to the bracket 15 (such as welding), and a screw hole is left on the bracket 15. During installation, the silencer will be fixedly connected to the top of the container through the bracket 15 by screws, etc., to ensure the stability of the silencer. The smoke passes through the first connecting device 2 from the exhaust pipe 3 of the generator and enters the cavity 1 of the silencer. After the smoke is silenced, the qualified smoke and sound can be discharged into the atmosphere through the exhaust channel 5 (such as the smoke tail pipe).

[0055] Wherein, optionally, Figure 1 As shown, the end surface of the exhaust end of the silencer can be provided with an observation port 16 for monitoring the quality of the exhaust smoke. Usually, it is tightened with screws, and when the environment in the flue is to be tested, the detection device is inserted into the flue for testing.

[0056] In addition, the present application also provides a generator set container, which includes a container for accommodating a generator set and a muffler device as described above in the present application arranged on the top or inside of the container. When the muffler device is arranged inside the container, its smoke exhaust channel 5 extends out of the container body through a smoke exhaust port arranged at an appropriate position on the container.

[0057] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0058] Similarly, it should be understood that in order to streamline the present disclosure and aid in understanding one or more of the various aspects of the invention, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together into a single embodiment, figure, or description thereof.

[0059] Those skilled in the art will appreciate that the components in the device in the embodiment may be adaptively changed. Except that at least some of such features or components are mutually exclusive, all features disclosed in this specification (including the accompanying claims, abstracts and drawings) and any components so disclosed may be combined in any combination. Unless otherwise expressly stated, each feature disclosed in this specification (including the accompanying claims, abstracts and drawings) may be replaced by an alternative feature providing the same, equivalent or similar purpose.

[0060] In addition, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0061] It should be noted that the above embodiments illustrate the present invention rather than limit it, and that those skilled in the art may design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets should not be constructed as a limitation on the claims. The word "comprising" does not exclude the presence of elements not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of multiple such elements. The present invention may be provided by means of hardware comprising several different elements. In a unit claim that lists several devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third, etc. does not indicate any order. These words may be interpreted as names.

Claims

1. A silencer for a generator container, comprising a metal cavity of a predetermined length, a first connecting device having an opening is provided at one end of the cavity, the first connecting device is connected to a smoke exhaust pipe of the generator, and a second connecting device having an opening and a smoke exhaust channel connected to the second connecting device are provided at the other end of the cavity, characterized in that: More than three partitions are sequentially arranged along the length direction of the cavity from the side close to the first connecting device to the side close to the second connecting device to divide the cavity of the cavity into a plurality of sub-cavities; the edges of the partitions are tightly connected to the inner surface of the cavity respectively; Among them, each partition has openings, and the projections of the openings on each two adjacent partitions in the length direction of the cavity intersect or do not overlap; the sum of the areas of all the openings on the partition located at the rear in the direction of smoke exhaust is greater than or equal to the sum of the areas of all the openings on the partition located in the front; the sum of the areas of all the openings on each partition is greater than the cross-sectional area of ​​the smoke exhaust duct of the generator set.

2. The silencing device according to claim 1, characterized in that: The two adjacent partitions are partitions with any two of the following opening modes: A partition having M identical openings uniformly opened at the center, wherein the M openings are arranged in a honeycomb shape, wherein M is a natural number greater than or equal to 3; and A partition is provided with L identical openings evenly arranged at peripheral positions, and the L openings are evenly distributed at the periphery of the partition, wherein L is a natural number.

3. The silencing device according to claim 1 or 2, characterized in that: Hollow tubes are respectively connected on the edges of the openings and along the length direction of the cavity, and the hollow tubes allow the front and rear sub-chambers thereof to communicate with each other.

4. The silencing device according to claim 1 or 2, characterized in that: The partitions are evenly arranged in the length direction of the cavity.

5. The silencing device according to claim 1 or 2, characterized in that: The partitions are all solid metal plates.

6. The silencing device according to claim 3, characterized in that: The hollow tube is made of a mesh-shaped metal sheet.

7. The silencing device according to claim 1 or 2, characterized in that: The first connecting device comprises an elbow pipe, a first flange, a reducer, a second flange and a shockproof bellows which are connected in sequence. The second flange is a customized flange, and the bellows is adaptably connected to the smoke exhaust pipe.

8. The silencing device according to claim 1 or 2, characterized in that: A sound insulation material and a mesh-shaped metal sheet covering the outside of the sound insulation material are arranged on the inner wall of the cavity; The partitions are respectively fixedly connected to the mesh-shaped metal sheets on the inner wall of the cavity.

9. A generator set container, comprising a container for accommodating a generator set, characterized in that: It also includes a silencer according to any one of claims 1 to 8 of the present application, which is arranged on the top or inside of the container.

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