CN113775847A - Liquid filling pipeline silencer - Google Patents
Liquid filling pipeline silencer Download PDFInfo
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- CN113775847A CN113775847A CN202110924944.8A CN202110924944A CN113775847A CN 113775847 A CN113775847 A CN 113775847A CN 202110924944 A CN202110924944 A CN 202110924944A CN 113775847 A CN113775847 A CN 113775847A
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- branch pipe
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- liquid filling
- pipe
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- 239000007788 liquid Substances 0.000 title claims abstract description 60
- 230000003584 silencer Effects 0.000 title abstract description 34
- 230000001105 regulatory effect Effects 0.000 claims abstract description 42
- 238000004804 winding Methods 0.000 claims description 36
- 239000000945 filler Substances 0.000 claims description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 8
- 230000001788 irregular Effects 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 230000030279 gene silencing Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001743 silencing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention provides a liquid filling pipeline silencer which comprises a main pipeline, a cavity, at least two branch pipes and at least two regulating valves, wherein the main pipeline is connected with the cavity through the at least two branch pipes; the first end of the main pipeline is used for being communicated with a liquid filling pipeline, the second end of the main pipeline is communicated with the cavity through the branch pipes respectively, and at least one regulating valve is installed on each branch pipe respectively; the branch pipes are different in length, wherein the at least two branch pipes comprise a first branch pipe, and the first branch pipe is provided with a spiral section. According to the liquid filling pipeline silencer provided by the invention, the first branch pipe with the spiral section is arranged, so that the length of the first branch pipe is prolonged, the mounting space required by the first branch pipe is reduced, the mounting space is reduced, and the noise reduction frequency of the liquid filling pipeline silencer is effectively reduced.
Description
Technical Field
The invention relates to the technical field of noise control, in particular to a liquid filling pipeline silencer.
Background
The Helmholtz resonant cavity can effectively eliminate the noise close to the resonance frequency of the Helmholtz resonant cavity, and the silencer based on the Helmholtz resonant cavity structure principle is widely applied to the industrial field.
In the liquid filling pipeline, in order to eliminate low-frequency noise, a small pipeline diameter or a large cavity volume or a long pipeline length is usually required to be set, however, because the pipeline diameter is limited, the influence of reducing the pipeline diameter on the noise elimination frequency is limited; the large cavity volume and the long pipeline length are set, so that a large installation space is often needed, and the practical application environment is restricted.
Disclosure of Invention
The invention provides a liquid filling pipeline silencer, which is used for solving the defect that a low-frequency liquid filling pipeline silencer for a liquid filling pipeline in the prior art needs a larger installation space.
The invention provides a liquid filling pipeline silencer which comprises a main pipeline, a cavity, at least two branch pipes and at least two regulating valves, wherein the main pipeline is connected with the cavity through the at least two branch pipes; the first end of the main pipeline is used for being communicated with a liquid filling pipeline, the second end of the main pipeline is communicated with the cavity through the at least two branch pipes respectively, and at least one regulating valve is mounted on each branch pipe respectively; the branch pipes are different in length, wherein the at least two branch pipes comprise a first branch pipe, and the first branch pipe is provided with a spiral section.
According to the liquid filling pipeline silencer provided by the invention, the helix angle theta of the helix section of the first branch pipe is 5-30 degrees.
According to the liquid filling pipeline silencer provided by the invention, the at least two branch pipes comprise a second branch pipe, and the second branch pipe is a straight branch pipe.
The liquid filling pipeline silencer further comprises a winding post, wherein the spiral section of the first branch pipe is wound on the winding post, and the winding post is sleeved outside the second branch pipe.
According to the liquid filling pipeline silencer provided by the invention, the outer diameter D of the winding post and the outer diameter D of the first branch pipe satisfy the following relation:
dcos(θ)cot(θ)＝2π(D+d)。
according to the liquid filling pipeline silencer provided by the invention, the at least two branch pipes comprise a third branch pipe, the third branch pipe is provided with a spiral section, and the spiral section of the third branch pipe and the spiral section of the first branch pipe have different spiral angles; or the third branch pipe is provided with a snake-shaped bent section.
According to the liquid filling pipeline silencer provided by the invention, two regulating valves are respectively installed on each branch pipe, wherein one regulating valve is close to the second end of the main pipeline, and the other regulating valve is close to the cavity.
The liquid filling pipeline silencer further comprises an exhaust valve, and the exhaust valve is mounted in the cavity.
According to the liquid filling pipeline silencer provided by the invention, the volume of the cavity is variable.
According to the liquid filling pipeline silencer provided by the invention, the cavity comprises a cavity body and a piston, and the piston is slidably mounted on the cavity body.
According to the liquid filling pipeline silencer provided by the invention, the first branch pipe with the spiral section is arranged, so that the length of the first branch pipe is prolonged, the mounting space required by the first branch pipe is reduced, the mounting space is reduced, and the noise reduction frequency of the liquid filling pipeline silencer is effectively reduced. And, because the spiral section has certain helix angle, when the cavity mounting height is higher than the trunk line, can guarantee that the spiral section of first branch pipe upwards extends all the time, does not have local high point to trace gas in the liquid can be along with the trend gathering of first branch pipe to the top of cavity, reduces the influence that gaseous is fallen the noise. In addition, the branch pipes with different lengths and communicated with the main pipeline and the cavity are switched through the regulating valve, so that the resonance frequency of the Helmholtz resonant cavity can be changed, the main noise reduction frequency of the liquid filling pipeline silencer is changed, and the application range of the liquid filling pipeline silencer is expanded.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a liquid filling pipeline silencer provided by the invention.
Reference numerals:
1: a main pipeline; 21: a first branch pipe; 22: a second branch pipe;
31: a first lower regulating valve; 32: a first upper regulating valve; 33: a second lower regulating valve;
34: a second upper regulating valve; 4: a winding post; 5: a cavity;
6: and (4) exhausting the valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the present invention provides a liquid filling line muffler comprising: main line 1, cavity 5, at least two branch pipes and at least two governing valves. The first end of the main pipeline 1 is used for being communicated with a liquid filling pipeline, the second end of the main pipeline 1 is communicated with the cavity 5 through branch pipes, and at least one regulating valve is installed on each branch pipe.
The branch pipes have different lengths, wherein at least two branch pipes comprise at least a first branch pipe 21, and the first branch pipe 21 is provided with a spiral section.
Specifically, the cavity 5 is provided with a through hole for communicating with the branch pipes, one end of each branch pipe is respectively connected to the second end of the main pipeline 1, and the other end of each branch pipe is converged in the same pipeline and then communicated with the through hole of the cavity 5; or the cavity 5 is provided with through holes corresponding to the number of the branch pipes, one end of each branch pipe is respectively connected to the second end of the main pipeline 1, and the other end of each branch pipe is respectively connected to one through hole of the cavity 5.
Each branch pipe is provided with at least one regulating valve, and each branch pipe is selectively communicated between the cavity 5 and the main pipeline 1. When the regulating valve of one branch pipe is opened and the regulating valves of the other branch pipes are closed, the main pipeline 1, the branch pipe and the cavity 5 form a Helmholtz resonant cavity, and the resonant frequency of the Helmholtz resonant cavity is determined by the length of the branch pipe. When branch pipes of different lengths are connected between the chamber 5 and the main pipe 1, the resonance frequency of the helmholtz resonator changes. In addition, the regulating valves on the plurality of branch pipes can be simultaneously connected, so that the main pipeline 1, the plurality of branch pipes and the cavity 5 simultaneously form a plurality of Helmholtz resonant cavities, and the integral resonant frequency of the liquid filling pipeline silencer is further changed.
It should be noted that, when the liquid filling pipeline muffler provided by the invention is installed, the horizontal height of the cavity 5 is ensured to be higher than that of the main pipeline 1, and the communication part of each branch pipe and the cavity 5 is positioned at the cavity bottom or the cavity wall of the cavity 5 but not positioned at the top of the cavity 5. The trend of each branch pipe from the second end of the main pipeline 1 to the cavity 5 is straight line or inclined upwards, and a turning point with local height descending does not exist.
The branch pipes at least comprise a first branch pipe 21, and the first branch pipe 21 is provided with a spiral pipe section which spirally rises, wherein the spiral pipe section can be a regular spiral with a fixed spiral angle and a fixed outer diameter d, or an irregular spiral with an irregular outer diameter d or an irregular spiral with an irregular spiral angle, and the irregular spiral angle is always inclined upwards. Other branches may include straight branches, serpentine branches, etc.
When the liquid filling pipeline silencer provided by the invention is used for reducing noise of a liquid filling pipeline, firstly, the first branch pipe 21 is provided with the spiral section, the overall extension length of the first branch pipe is longer, and the required installation space is smaller. When the first branch pipe 21 is communicated between the cavity 5 and the main pipeline 1, the total length of the pipeline of the formed Helmholtz resonant cavity is long, the resonant frequency is low, and the Helmholtz resonant cavity is suitable for low-frequency noise reduction. Secondly, the liquid filling pipeline may contain trace gas, which affects noise frequency and noise reduction effect, and the spiral section of the first branch pipe 21 is always inclined upwards without local high points, so that the gas can be gathered to the top of the cavity 5 along the first branch pipe 21, and the influence of the gas on the noise reduction effect is reduced. Furthermore, the branch pipes communicated between the cavity 5 and the main pipeline 1 can be switched by the opening and closing of the regulating valves, when the regulating valves on the branch pipes with different lengths are switched on, the total pipeline lengths of the formed Helmholtz resonant cavities are different, the resonant frequencies are different, and the applicable noise reduction ranges of the liquid filling pipeline silencer are also different. In conclusion, the liquid filling pipeline silencer provided by the invention can be suitable for silencing low-frequency noise on the basis of smaller required installation space, can be suitable for silencing multiple frequencies, and has a stable silencing effect.
On the basis of the above embodiments, in some embodiments of the invention, the helical section of the first branch pipe 21 has a helix angle θ of 5 ° to 30 °. For example, in one embodiment, θ is 5 °, in another embodiment, θ is 15 °, and in yet another embodiment, θ is 30 °. The smaller the helix angle, the smaller the inclination angle of the helix section, the denser the helix section, and the longer the length that can be accommodated in a certain installation space. Preferably, in order to avoid the local highest point or turning point of the first branch pipe 21 in the spiral section, the central axis of the spiral section of the first branch pipe 21 extends along the vertical height direction.
On the basis of the above embodiments, in some embodiments of the invention, the charging line muffler comprises a second branch pipe 22, the second branch pipe 22 being a straight branch pipe.
For example, in one embodiment, the charging line muffler includes a first branch pipe 21 and a second branch pipe 22, wherein the first branch pipe 21 is provided with a spiral section having a helix angle θ of 5 °, and the second branch pipe 22 is a straight pipe extending in a vertical height direction. In another embodiment, the charging line muffler comprises a first branch pipe 21 and a second branch pipe 22, wherein the first branch pipe 21 is provided with a spiral section, and the second branch pipe 22 is a straight pipe extending obliquely upwards at an angle deviating from the vertical height direction.
Optionally, in some embodiments, the second branch pipe 22 is inserted into a cylindrical cavity formed by the spiral section of the first branch pipe 21, thereby further reducing the installation space required for the charging line muffler. It should be noted that, when the second branch pipe 22 is inserted into the first branch pipe 21, to avoid interference, the second branch pipe 22 should be a straight pipe extending along the vertical height direction, or the second branch pipe 22 deviates from the vertical height direction by a certain angle, but the position difference of the two ends projected on the cross section of the spiral section of the first branch pipe 21 is smaller than the inner diameter of the spiral section of the first branch pipe 21.
Further, optionally, the muffler for a liquid filling pipeline provided in some embodiments of the present invention further includes a winding post 4, the spiral section of the first branch pipe 21 is wound around the winding post 4, and the winding post 4 is sleeved outside the second branch pipe 22.
It will be appreciated that the winding post 4 is a cylindrical body provided with a through hole extending along the axis. The second branch pipe 22 passes through the through hole of the winding post 4 and is communicated to the cavity 5, and the first branch pipe 21 is wound on the cylindrical side surface of the winding post 4 and is communicated to the cavity 5.
Specifically, in one embodiment, the helix angle θ of the helical segment of the first branch tube 21 is 5 °, the second branch tube 22 extends in the vertical height direction, the height L of the winding post 4 is 1 meter, and the helical segment of the first branch tube 21 is wound around the winding post 4. Length L of main pipe 10Is 0.2 m.
At this time, regardless of the difference between the branching point and the merging point of the first branch tube 21 and the second branch tube 22, by making the height L of the winding post 4 approximately equal to the height difference from the cavity 5 to the main pipeline 1, the total pipeline length L of the helmholtz resonance chamber when the first branch tube 21 is connected to the cavity 51Is L/sin (theta) + L0I.e., 11.67 meters; when the second branch pipe 22 is connected to the cavity 5, the total pipe length L of the Helmholtz resonance cavity2Is L + L0I.e. 1.2 meters. The difference between the resonance frequencies of the two is 0.32 times, and the achievable noise elimination frequency can be greatly reducedThe lower limit, promotes the elimination of low frequency noise.
Optionally, in an embodiment, the outer diameter D of the winding post 4, the outer diameter D of the first branch tube 21, and the helix angle θ satisfy the following formula:
dcos(θ)cot(θ)＝2π(D+d) (1)
at this time, the spiral section of the first branch pipe 21 can be wound on the outer surface of the winding post 4, and the turns of the spiral section can be abutted against each other, so that the structure of connecting the first branch pipe 21 and the winding post 4 is compact. It should be noted that if the outer diameter D of the winding leg 4 is smaller than the outer diameter D obtained by the formula (1), the first branch pipe 21 cannot be wound around the winding leg 4 because the winding leg 4 is too thin. Therefore, in other embodiments, the outer diameter D of the winding leg 4 should be greater than or equal to the outer diameter D found by equation (1).
On the basis of the above embodiments, in some embodiments of the present invention, optionally, a third branch pipe is further included in the other branch pipe of the liquid filling pipe muffler. The third branch pipe can be provided with a spiral section, and the spiral section of the third branch pipe and the spiral section of the first branch pipe 21 have different helix angles; or the third branch pipe is provided with a snake-shaped bending section.
For example, in one embodiment, the charging line muffler includes a first branch pipe 21 provided with a spiral section and having a lead angle θ of 5 °, a second branch pipe 22 straight and extending in the vertical height direction, and a second branch pipe provided with a spiral section and having a lead angle θ of 5 °1Is a 30 deg. third branch. The second branch pipe 22 is inserted into either the first branch pipe 21 or the third branch pipe.
In another embodiment, the charging line muffler comprises a first branch pipe 21 provided with a spiral section and having a helix angle θ of 5 °, a second branch pipe 22 which is straight and extends in the vertical height direction, and a third branch pipe provided with a serpentine bend section. The snake-shaped bending section of the third branch pipe comprises a plurality of transverse pipes which are parallel to each other, parallel to the horizontal plane and arranged along the vertical height direction, and two adjacent sections of transverse pipes are connected through a U-shaped bending section. The first branch 21 is wound around the winding post 4, the second branch 22 is inserted into the winding post 4, and the third branch is opposite to the winding post 4.
In yet another embodiment, a filler line muffler includes a housing havingA first branch pipe 21 which is spiral-segment and has a lead angle theta of 5 deg., a second branch pipe 22 which is linear and extends in the vertical height direction, and a third branch pipe which is linear and deviates from the vertical height direction by an angle sigma of 5 deg.. The first branch 21 is wound around the winding post 4, the second branch 22 is inserted into the winding post 4, and the third branch is opposite to the winding post 4. At this time, the height difference between the branching position and the merging position of each pipeline is neglected, the height of the winding post 4 is approximately equal to the height difference from the cavity 5 to the main pipeline 1, and the length of the main pipeline 1 is taken as L0When the first branch pipe 21 is connected to the liquid filling pipe muffler, the total pipe length L of the liquid filling pipe muffler1Is L/sin (theta) + L0(ii) a The total pipe length L of the liquid filling pipe silencer when the second branch pipe 22 is connected with the liquid filling pipe silencer2Is L + L0(ii) a When the third branch pipe is communicated with the liquid filling pipeline silencer, the total pipeline length L of the liquid filling pipeline silencer3Is L/cos (sigma + L)0。
It can be understood that the number and the structure of the branch pipes of the liquid filling pipeline muffler provided in the embodiment of the present invention may also be in other forms, for example, the branch pipe included in the liquid filling pipeline muffler includes two branch pipes provided with a spiral section, or one branch pipe provided with a spiral section and one branch pipe provided with a serpentine bending section, or further includes a fourth branch pipe and a fifth branch pipe, and the present invention is not limited thereto as long as the lengths of the branch pipes are different.
On the basis of the above embodiment, optionally, two regulating valves are respectively installed on each branch pipe of the liquid filling pipeline muffler, wherein one regulating valve is close to the second end of the main pipeline 1, and the other regulating valve is close to the cavity 5.
Because each branch pipe of the liquid filling pipeline silencer has a certain length, when the connection of different branch pipes is controlled by a single regulating valve, part of other branch pipes can be connected into a Helmholtz resonant cavity to form interference. Therefore, set up and install two stop valves on every branch pipe, one of them governing valve is close to the second end of main line 1, is equivalent to installing the head end at the branch pipe, and another governing valve is close to cavity 5, is equivalent to installing the end at the branch pipe, and when two stop valves on a branch pipe were all opened and two stop valves on other branch pipes were all closed, other branch pipes only had the short partly and helmholtz resonance chamber intercommunication in end, and the influence is less.
For example, in an embodiment, as shown in fig. 1, a first branch pipe 21 and a second branch pipe 22 are respectively connected to a second end of a main pipe 1 of a liquid filling pipe muffler, the first branch pipe 21 is wound around a winding post 4, the winding post 4 is sleeved on the second branch pipe 22, and after passing through the winding post 4, the first branch pipe 21 and the second branch pipe 22 are gathered in the same pipe and connected to a cavity 5. Wherein, between the second end of the main pipeline 1 and the winding post 4, the first branch pipe 21 and the second branch pipe 22 are respectively provided with a first lower regulating valve 31 and a second lower regulating valve 33, and between the collection point of the first branch pipe 21 and the second branch pipe 22 and the winding post 4, the first branch pipe 21 and the second branch pipe 22 are respectively provided with a first upper regulating valve 32 and a second upper regulating valve 34. When the first lower regulating valve 31 and the first upper regulating valve 32 are opened and the second lower regulating valve 33 and the second upper regulating valve 34 are closed, the first branch pipe 21 is connected between the main pipe 1 and the chamber 5, and only two short portions of the second branch pipe 22, from the second end of the main pipe 1 to the second lower regulating valve 33 and from the second upper regulating valve 34 to the convergence point of the first branch pipe 21 and the second branch pipe 22, communicate with the helmholtz resonance chamber, which causes less influence. Similarly, when the first lower regulating valve 31 and the first upper regulating valve 32 are closed and the second lower regulating valve 33 and the second upper regulating valve 34 are opened, the first branch pipe 21 also has a smaller influence on the helmholtz resonator.
On the basis of the embodiment, the liquid filling pipeline silencer further comprises an exhaust valve 6, and the exhaust valve 6 is installed in the cavity 5. Preferably, in order to ensure that the gas in the liquid filling pipeline can gather at the top end of the cavity 5 and be smoothly discharged through the exhaust valve 6, the exhaust valve 6 should be installed at the top of the cavity 5 and located at the highest point of the installation position of the cavity 5. At the starting stage of the liquid filling pipeline silencer, the exhaust valve 6 is opened to enable the cavity 5 to be communicated with the atmospheric pressure, liquid can be smoothly discharged into the cavity 5, and the exhaust valve 6 is closed after the cavity 5 is filled with the liquid. After the liquid filling pipeline muffler is used for a period of time at intervals, a certain amount of gas is gathered at the top end of the cavity 5 again, and the exhaust valve 6 is opened again to release the gas. Through this kind of mode, can effectively reduce the influence of trace gas in main line 1 to the noise cancelling effect.
On the basis of the above embodiment, optionally, the volume of the cavity 5 of the charging line muffler is variable. For example, in some embodiments, the side walls of the chamber 5 are telescopic, and the height of the side walls is changed by the telescopic movement to change the volume of the chamber 5; in other embodiments, the chamber 5 is fitted with a piston that varies the volume of the chamber 5 by pushing or pulling the piston. The volume of the cavity 5 is changed, the resonance frequency of the Helmholtz resonant cavity can be changed, the change range of the resonance frequency of the Helmholtz resonant cavity can be further expanded through the different lengths of the branch pipes matched with the different volumes of the cavity 5, and the noise frequency range which can be eliminated by the liquid filling pipeline silencer is further expanded.
On the basis of the above embodiment, optionally, the cavity 5 includes a cavity body and a piston, and the piston is slidably mounted on the cavity body and is used for adjusting the volume of the cavity 5. Specifically, the cavity body is provided with an opening, and the piston is slidably mounted in the opening of the cavity body. In one embodiment, the installation position is that the opening of the cavity body faces upwards, the piston is positioned at the top of the cavity body 5, and the exhaust valve 6 is installed on the piston.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A charge line muffler, comprising: the device comprises a main pipeline, a cavity, at least two branch pipes and at least two regulating valves;
the first end of the main pipeline is used for being communicated with a liquid filling pipeline, the second end of the main pipeline is communicated with the cavity through the at least two branch pipes respectively, and each branch pipe is provided with at least one regulating valve;
the branch pipes are different in length, wherein the at least two branch pipes comprise a first branch pipe, and the first branch pipe is provided with a spiral section.
2. The filling line muffler according to claim 1, wherein a helix angle θ of the helical section of the first branch pipe is 5 ° to 30 °.
3. The charging line muffler of claim 1, wherein a second branch is included in the at least two branches, the second branch being a straight branch.
4. The liquid filling line muffler according to claim 3, further comprising a winding post, wherein the spiral section of the first branch pipe is wound around the winding post, and the winding post is sleeved outside the second branch pipe.
5. The liquid filled pipe muffler according to claim 4, wherein an outer diameter D of the spool and an outer diameter D of the first branch pipe satisfy the following relationship:
d cos(θ)cot(θ)＝2π(D+d)。
6. the charging line muffler according to claim 3, wherein a third branch pipe is included in the at least two branch pipes, the third branch pipe is provided with a spiral section, and the spiral section of the third branch pipe and the spiral section of the first branch pipe have different helix angles;
or the third branch pipe is provided with a snake-shaped bent section.
7. The filler line muffler of claim 1, wherein each of said branch pipes has two of said regulating valves mounted thereon, one of said regulating valves being located adjacent to said second end of said main pipe, and the other of said regulating valves being located adjacent to said chamber.
8. The filler line muffler of claim 1, further comprising an exhaust valve mounted to the cavity.
9. The filler line muffler of claim 1, wherein the volume of the cavity is variable.
10. The filler line muffler of claim 9, wherein the cavity comprises a cavity body and a piston slidably mounted to the cavity body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110924944.8A CN113775847A (en) | 2021-08-12 | 2021-08-12 | Liquid filling pipeline silencer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110924944.8A CN113775847A (en) | 2021-08-12 | 2021-08-12 | Liquid filling pipeline silencer |
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| CN113775847A true CN113775847A (en) | 2021-12-10 |
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| CN109764204A (en) * | 2019-03-06 | 2019-05-17 | 西南石油大学 | A kind of natural gas vent sound deadener |
| CN112102805A (en) * | 2020-08-28 | 2020-12-18 | 武汉理工大学 | Adjustable impedance combined type silencer and noise elimination system |
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2021
- 2021-08-12 CN CN202110924944.8A patent/CN113775847A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0953787A (en) * | 1995-08-11 | 1997-02-25 | Kajima Corp | Blade for drain pipe |
| DE19833899A1 (en) * | 1998-04-01 | 1999-10-07 | Vickers Aeroquip Int Gmbh | Arrangement for reducing pulsations and / or vibrations in hydraulic hose line systems |
| CN101013757A (en) * | 2006-02-02 | 2007-08-08 | 三星Sdi株式会社 | Fuel cell system with muffler |
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| CN112102805A (en) * | 2020-08-28 | 2020-12-18 | 武汉理工大学 | Adjustable impedance combined type silencer and noise elimination system |
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Application publication date: 20211210 |