CN207796391U - A kind of exhaust muffling device - Google Patents
A kind of exhaust muffling device Download PDFInfo
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- CN207796391U CN207796391U CN201721875356.5U CN201721875356U CN207796391U CN 207796391 U CN207796391 U CN 207796391U CN 201721875356 U CN201721875356 U CN 201721875356U CN 207796391 U CN207796391 U CN 207796391U
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- bottom cover
- connecting tube
- muffling device
- quieter material
- exhaust
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Abstract
A kind of exhaust muffling device, including connecting tube (2), bottom cover (3), blind flange (8) and exhaust pipe, connecting tube (2) are monolithic construction with bottom cover (3), blind flange (8)；It is vented bottom of the tube and fixation is sealed by bottom cover (3)；The first quieter material (91) is filled in the connecting tube (2)；The bottom cover (3) is at least to have the sandwich with strainer (7), and the second quieter material (92) is equipped in interlayer in the junction of connecting tube (2)；The exhaust pipe side wall is double-layer structure, and inside is filled with third quieter material (93)；By the way that three classes quieter material is arranged on the path that air-flow passes through, the compound use of a variety of materials can expand sound absorption range, weaken the sound wave of different frequency this patent, while reduce gas flow rate, and noise is reduced to acceptable decibel；It is to be detachably connected between most of component of this patent, is readily transported storage and repair, reduces cost of equipment maintenance.
Description
Technical field
This patent is related to gas emissions field, is a kind of exhaust muffling device specifically.
Background technology
Currently, natural gas has become the main domestic energy of city dweller, increase with the laying of city gas pipeline,
Natural gas line failure or new and old pipe network are plugged into more frequently, and emergency team first will need when repairing or plugging into natural gas line
Discharge is clean outward or could start to repair less than certain value for natural gas in pipe；At present in pipe natural gas discharge process,
There are the following problems：1. the directly logical air of delivery pipe, discharge noise is larger, and maximum is more than 100 decibels, since discharge operation is general
At dead of night, citizen's rest is influenced；2. natural gas discharge speed is appropriate, if flow velocity is too fast, can also be produced in addition to generating loud noise
Raw electrostatic, there are security risks；But mass rate of emission is excessively slow, can influence repair progress.
Utility model content
This patent proposes a kind of exhaust muffling device, can effectively reduce the noise generated during natural gas discharge and drop
Low gas flow rate.
The technical solution of this patent is as follows：
A kind of exhaust muffling device, including connecting tube, bottom cover, blind flange and exhaust pipe, connecting tube are with bottom cover, blind flange
Monolithic construction；It is vented bottom of the tube and fixation is sealed by bottom cover, the first quieter material is filled in the connecting tube；Preferably, institute
It is steel wire flocculent structure to state the first quieter material.
The fairlead of natural gas is first connected through a screw thread and connecting tube by emergency team when being overhauled to natural gas line
It tightens, and interface takes seal approach, avoids natural gas leakage, the first quieter material is filled in connecting tube, it is preferable that
First quieter material is steel wire flocculent structure；When stomata of the natural gas by steel wire flocculent structure internal defect, sound wave
A part of acoustic energy rub in the hole inside steel wire flocculent structure and be converted to thermal energy consumption and dissipate, make by natural gas gas
The sound wave that stream passes through weakens, and achievees the purpose that noise reduction, steel wire Batt material also have certain effect to reducing gas flow rate.
The bottom cover is being at least to have the sandwich with strainer, and the second noise reduction is equipped in interlayer with connecting tube junction
Material, the second quieter material of strainer pair has fixed function, and strainer plays a role in filtering to the impurity in natural gas, meanwhile, filter
Net and the second quieter material can increase resistance of the gas by it, can limit gas flow rate；Preferably, second quieter material
For the fibrous material of short texture.
Since connecting tube and bottom cover are monolithic construction, in order to ensure erasure effect, therefore, bottom cover at least with connecting tube
Junction carries strainer, and the second quieter material is equipped in interlayer, can further weaken by after the first quieter material noise reduction
Acoustic energy；Further, second quieter material is the fibrous material of short texture appropriateness, can absorb and weaken various
The sound wave of frequency reduces noise decibel and further decreases gas flow rate.
Further, the exhaust pipe includes socket, head cover；The socket both ends are connect with bottom cover, head cover respectively, and extremely
It is few that array gas vent is distributed on socket.
In order to preferably control gas flow rate, avoids gas flow rate too fast and strengthen noise reduction, the socket is designed
For double-layer structure, including inner and outer wall, inside, third quieter material is filled between outer wall；Preferably, the third noise reduction
Material is thicker silencing cotton, is coordinated with the first quieter material and the second quieter material, and the compound use of a variety of materials can expand
Absorb sound range, absorbs and weakens the sound wave of different frequency, noise is reduced to acceptable decibel.
Array gas vent is evenly distributed on the inner and outer wall, it is preferable that the exhaust pore size distribution of inner and outer wall
Position corresponds, and is smoothly discharged from socket convenient for gas, when urban district is repaired, needs as possible to reduce exhaust noise, passes through
After first quieter material and the second quieter material, also partial noise can not be eliminated, if as socket is discharged, noise decibel reaches
It is less than urban district emission request, therefore, setting socket is double-layer structure, and gas vent is equipped on two layers of tube wall, uniform and close
The gas vent of collection distribution can decay acoustic wave energy.
Further, the exhaust muffling device further includes stay bolt, sequentially passes through head cover, bottom cover and blind flange, and will
It is closely connected.
The various pieces that exhaust muffling device is connected by stay bolt may be implemented the detachable of exhaust muffling device and connect
Connect, substitute the unidirectional type assembling using welding, be readily transported storage, or repair a certain parts therein, reduce maintenance at
This.When assembling exhaust muffling device, first the second quieter material is placed on strainer, then assembling is filled with third quieter material
Socket, then head cover, bottom cover, connecting tube and blind flange, socket etc. are together in series with stay bolt, it is fastened with nut, finally
One quieter material is put into connecting tube (2).
Compared with prior art, a kind of exhaust muffling device that this patent provides, has the following advantages：
1, for this patent by the way that three classes quieter material is arranged on the path that air-flow passes through, the compound use of a variety of materials can
Expand sound absorption range, weakens the sound wave of different frequency, while reducing gas flow rate, noise is reduced to acceptable decibel；
2, it is to be detachably connected, replace between the exhaust muffling device major part component of this patent, is readily transported storage
And repair, reduce cost of equipment maintenance.
Description of the drawings
Fig. 1 is the sectional view of this patent embodiment.
Fig. 2 is partial enlarged view at A in Fig. 1.
Fig. 3 is partial enlarged view at B in Fig. 1.
Fig. 4 is C-C sectional views in Fig. 1.
Fig. 5 is D-D sectional views in Fig. 1.
Specific implementation mode
In the following with reference to the drawings and specific embodiments, specific implementation of the patent mode is further described.
Embodiment
As shown in Figure 1 to Figure 3, a kind of exhaust muffling device, including fairlead 1, connecting tube 2, bottom cover 3, socket 4, head cover
5, stay bolt 6 and blind flange 8；Connecting tube 2 is monolithic construction with bottom cover 3,8 sets of blind flange；4 upper end of socket is connect with head cover 5,
Lower end is connect with bottom cover 3, to be connect with connecting tube 2；Bottom cover 3, socket 4, head cover 5, blind flange 8 are connected by stay bolt 6, is used
Nut fastens.
The various pieces that exhaust muffling device is connected by stay bolt 6, may be implemented the detachable of exhaust muffling device, replace
In generation, using the unidirectional type assembling of welding, is readily transported storage, facilitates repair a certain parts therein, reduces maintenance cost.
As shown in figure 3, socket 4 is double-layer structure, including outer wall 41 and inner wall 42, divide equally on the outer wall 41 and inner wall 42
It is furnished with array gas vent 43, it is preferable that 43 distributing position of gas vent of outer wall 41 and inner wall 42 corresponds, on the one hand more
Conducive to making gas be smoothly discharged from socket 4, gas flow rate on the other hand can be preferably controlled, avoids gas flow rate too fast, by
It is sealed with head cover 5 in gas vent one end of socket 4, gas is forced to can only enter exhaust portion, be discharged from gas vent 43, reduce gas
Body flow velocity.
Exhaust muffling device in the present embodiment has the function of that noise reduction, principle are as follows：
As shown in Figure 1, being filled with the first quieter material 91 in connecting tube 2；Preferably, first quieter material 91 is
Steel wire flocculent structure.
When hole of the natural gas by steel wire flocculent structure internal defect, a part of acoustic energy of sound wave is in steel wire flocculent structure
Rub in internal hole and be converted to thermal energy consumption and dissipate, make by the sound wave that passes through of gas flow weaken, reach noise reduction
Purpose, while reducing the flow velocity of gas.
As shown in Figure 1 and Figure 4, bottom cover 3 is equipped with the second quieter material 92 in the circumference where two stay bolts 6, and will
Second quieter material 92 is fixed on strainer 7, and strainer 7 can filter the impurity in gas there are trepanning；Preferably, described second
Quieter material 92 is the fibrous material of short texture appropriateness, and such quieter material almost covers connecting tube 2 and socket 4
Junction can guarantee that gas can enter from connecting tube 2 in socket 4, also allows for gas and enters the discharge of exhaust pipe external environment, together
When, it strengthens erasure effect and further reduced gas flow rate.
As shown in figure 3, being filled with third quieter material 93, the third noise reduction material between the outer wall 41 and inner wall 42
Material 93 is silencing cotton, is coordinated with the first quieter material 91 and the second quieter material 92, and the compound use of a variety of materials can expand suction
Sound range weakens the sound wave of different frequency, and noise is reduced to acceptable degree and further reduces the flow velocity of gas.
The installation process of exhaust muffling device in the present embodiment is as follows：
When assembling exhaust muffling device, first the second quieter material 92 is placed on strainer 7, then assembling is filled with third and disappears
The socket 4 of sound material 93, then head cover 5, bottom cover 3, connecting tube 2 and blind flange 8, socket 4 etc. are together in series with stay bolt 6, it uses
Nut fastens, and finally the first quieter material 91 is put into connecting tube (2).
For the present embodiment by the way that three classes quieter material is arranged on the path that air-flow passes through, the compound use of a variety of materials can
Expand sound absorption range, weakens the sound wave of different frequency, noise is reduced to acceptable degree and reduces air velocity, is used simultaneously
Grounding assembly to avoid electrostatic generation, avoid causing it is dangerous；It is detachably to connect between most of parts of the present embodiment
It connects, is readily transported storage and repair, reduce cost of equipment maintenance.
Obviously, it is not the restriction to this patent although this patent is disclosed with above-described embodiment.Any this field it is general
Logical technical staff can make possible variation on the basis of the above description in the spirit and scope for not departing from this patent
And modification.Therefore, the protection domain of this patent should be subject to the range that claims of this patent are defined.
Claims (8)
1. a kind of exhaust muffling device, including connecting tube (2), bottom cover (3), blind flange (8) and exhaust pipe, connecting tube (2) and bottom
Cover (3), blind flange (8) is monolithic construction；It is vented bottom of the tube and fixation is sealed by bottom cover (3)；It is characterized in that, the connecting tube
(2) the first quieter material (91) is filled in；The bottom cover (3) is being at least to have band strainer (7) with the junction of connecting tube (2)
Sandwich, and interlayer in be equipped with the second quieter material (92).
2. a kind of exhaust muffling device according to claim 1, which is characterized in that the exhaust pipe includes socket (4), top
It covers (5)；Socket (4) both ends are connect with bottom cover (3), head cover (5) respectively, and array at least is distributed on socket (4)
Gas vent (43).
3. a kind of exhaust muffling device according to claim 2, which is characterized in that the socket (4) is double-layer structure, packet
Include outer wall (41) and inner wall (42).
4. a kind of exhaust muffling device according to claim 3, which is characterized in that in the outer wall (41) and inner wall (42)
Between be filled with third quieter material (93).
5. a kind of exhaust muffling device according to claim 2, which is characterized in that the exhaust muffling device further includes length
Bolt (6) sequentially passes through head cover (5), bottom cover (3) and blind flange (8), and it is closely connected.
6. a kind of exhaust muffling device according to any one of claims 1 to 5, which is characterized in that the first noise reduction material
Expect that (91) are steel wire flocculent structure.
7. a kind of exhaust muffling device according to any one of claims 1 to 5, which is characterized in that the second noise reduction material
Expect that (92) are the fibrous material of short texture.
8. a kind of exhaust muffling device according to claim 4, which is characterized in that the third quieter material (93) is to disappear
Sound cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721875356.5U CN207796391U (en) | 2017-12-26 | 2017-12-26 | A kind of exhaust muffling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721875356.5U CN207796391U (en) | 2017-12-26 | 2017-12-26 | A kind of exhaust muffling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207796391U true CN207796391U (en) | 2018-08-31 |
Family
ID=63280384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721875356.5U Active CN207796391U (en) | 2017-12-26 | 2017-12-26 | A kind of exhaust muffling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207796391U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681716A (en) * | 2018-12-29 | 2019-04-26 | 郑州宇晟汽车产品科技开发有限公司 | A kind of auto heater sqouynd absorption lowering noise pipe |
| CN110660378A (en) * | 2019-10-30 | 2020-01-07 | 苏州海连净化设备有限公司 | Emptying silencer |
-
2017
- 2017-12-26 CN CN201721875356.5U patent/CN207796391U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681716A (en) * | 2018-12-29 | 2019-04-26 | 郑州宇晟汽车产品科技开发有限公司 | A kind of auto heater sqouynd absorption lowering noise pipe |
| CN110660378A (en) * | 2019-10-30 | 2020-01-07 | 苏州海连净化设备有限公司 | Emptying silencer |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 28-30, building 3, 510000 Linjiang Road, Guangzhou, Guangdong, Tianhe District Patentee after: GUANGZHOU DEVELOPMENT Group Inc. Patentee after: GUANGZHOU GAS GROUP Co.,Ltd. Patentee after: Guangzhou Huadu development Gas Co., Ltd Address before: 28-30, building 3, 510000 Linjiang Road, Guangzhou, Guangdong, Tianhe District Patentee before: GUANGZHOU DEVELOPMENT Group Inc. Patentee before: GUANGZHOU GAS GROUP Co.,Ltd. Patentee before: HUADU GUANGZHOU GAS Co.,Ltd. |