Silencing device for reducing pressure relief noise of high-pressure gas tank

Abstract

The invention discloses a silencing device for reducing pressure relief noise of a high-pressure gas tank, which relates to the technical field of silencing equipment, and is characterized in that a connecting pipe is connected with a storage shell, a prefabricated hole is formed in the connecting position of the storage shell and the connecting pipe for the connecting pipe to extend into the storage shell, a silencing shell is arranged in the storage shell, and an injection hole is formed in the surface of the silencing shell; a flow blocking cover is arranged in the silencing shell, flow dividing holes are formed in the flow blocking cover, the flow blocking cover is arranged on the side, provided with an opening, of the silencing shell, a first resistive sound absorption material is attached to the inner wall of the storage shell, and vent holes are formed in the side, away from the connecting pipe, of the storage shell. According to the silencing device for reducing the pressure relief noise of the high-pressure gas tank, throttling pressure reduction, small hole injection and resistive sound absorption material efficient combination are adopted, high-pressure steam emptying noise can be effectively controlled, the noise value is greatly reduced, and therefore harm to a human body is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of silencing equipment, and in particular relates to a silencing device for reducing the pressure relief noise of a high-pressure gas tank. Background Art

[0002] According to the requirements of GB3096-2008 acoustic environment quality standard, the ambient noise in any place shall not exceed 50~70dB during the day and should not be higher than 40~60dB at night. Various high-pressure gas tanks in the substation are the source of a lot of noise, especially when there is a need for maintenance work, pressure relief operations are required, and huge noise is generated during pressure relief. Because of its high sound level, long transmission distance and wide pollution area, it has a great impact on the surrounding environment and personnel. This noise not only seriously interferes with the normal life and work of the surrounding residents, but also may pose a long-term threat to the hearing health of the personnel. At the same time, it also has an unignorable impact on the acoustic environment quality of the surrounding environment of the substation.

[0003] When the gas in the high-pressure gas tank is emptied, the "jet" of high-temperature, high-speed, and high-pressure gas ejected from the discharge port in a very short time causes the adjacent atmosphere to move together, forming "entrainment" and gradually diffuses along the jet direction. The gas pressure drops sharply to the ambient pressure, and the volume expands accordingly. Near the core area of ​​the jet, the "jet" gas and the "entrainment" gas collide violently to produce high-frequency noise. This is the main area of ​​jet noise. The gas flow rate decreases as the width of the "jet" expands, generating medium and low-frequency noise. It can be seen that the noise of the high-pressure gas tank being emptied is characterized by suddenness, high sound level, wide frequency band, and long propagation.

[0004] At present, an effective way to control exhaust noise is to install a silencer at the exhaust pipe port, but there is no existing silencer specially designed for high-pressure gas tanks. Although installing a silencer at the exhaust pipe port can effectively reduce some noise, the existing silencer is not ideal due to the lack of silencers specially designed for the characteristics of high-pressure gas tanks. These general silencers are often difficult to fully adapt to the complex noise spectrum generated when the high-pressure gas tank is depressurized, resulting in poor noise control effect and failure to meet increasingly stringent environmental protection requirements.

[0005] Therefore, in order to solve the above problems, it is necessary to design a silencing device that reduces the pressure relief noise of the high-pressure gas tank. Summary of the invention

[0006] The technical problem to be solved by the present invention is to solve the deficiencies in the prior art and to design a new silencing device for reducing the noise of pressure relief of a high-pressure gas tank. The silencing device for reducing the noise of pressure relief of a high-pressure gas tank has a perfect structure. According to the pressure relief of the high-pressure gas tank, a three-layer silencing device is provided. The silencing treatment is performed by adopting the principle of throttling pressure reduction and small hole injection. During the silencing process, resistive sound-absorbing materials are auxiliaryly provided to ensure the silencing efficiency, thereby solving the problem that the silencing effect of the existing silencing device used for the pressure relief of a high-pressure gas pipe is not ideal.

[0007] The solution adopted by the present invention to solve the technical problem is:

[0008] A silencing device for reducing the noise of high-pressure gas tank decompression.

[0009] It is characterized in that

[0010] Contains a connecting pipe connected to the outlet of the pressure relief valve of the high-pressure gas tank,

[0011] The connecting pipe is connected to a storage shell.

[0012] A prefabricated hole is provided at the position where the storage shell and the connecting pipe are connected, so that the connecting pipe can extend into the storage shell.

[0013] A sound-absorbing shell is arranged inside the storage shell.

[0014] The surface of the muffler shell is provided with injection holes.

[0015] A baffle is provided inside the muffler shell.

[0016] The baffle cover is provided with a diversion hole,

[0017] The deflector is arranged on one side of the muffler shell opening.

[0018] The inner wall of the storage shell is affixed with a first resistive sound absorbing material

[0019] A vent hole is arranged on a side of the storage shell away from the connecting pipe.

[0020] As a preferred embodiment of the present invention, the side of the storage shell away from the connecting pipe is connected to a support baffle.

[0021] The other side of the support baffle is connected to an air outlet plate.

[0022] The air outlet plate is provided with an air outlet hole.

[0023] The side of the support baffle is provided with a sound-absorbing member.

[0024] As a preferred embodiment of the present invention, the baffle comprises a baffle plate and a diverter wall.

[0025] The splitter wall connects the baffle plate and the muffler shell.

[0026] The diversion hole is arranged on the diversion wall,

[0027] The baffle plate is correspondingly arranged at the end of the connecting pipe.

[0028] As a preferred embodiment of the present invention, the area of ​​the baffle is smaller than the bottom area of ​​the muffler shell.

[0029] The baffle plate area is larger than the connecting pipe cross-sectional area.

[0030] As a preferred embodiment of the present invention, a second resistive sound absorbing material is provided on the surface of the supporting baffle and the surface of the sound-absorbing member.

[0031] As a preferred embodiment of the present invention, the supporting baffle comprises a first baffle and a second baffle.

[0032] The cross-sectional perimeter of the second baffle is smaller than the cross-sectional perimeter of the first baffle,

[0033] The sound-absorbing parts of the first baffle plate and the sound-absorbing parts of the second baffle plate are arranged alternately.

[0034] As a preferred embodiment of the present invention, the muffler is semicircular and attached to the side of the support baffle;

[0035] The side wall of the support baffle is provided with a hook, and the bottom surface of the muffler is provided with a groove corresponding to the hook.

[0036] As a preferred embodiment of the present invention, both the first resistive sound absorbing material and the second resistive sound absorbing material are made of glass wool.

[0037] As a preferred embodiment of the present invention, the connecting pipe is a threaded structure.

[0038] As a preferred embodiment of the present invention, the storage shell adopts a cylindrical structure.

[0039] The muffler shell and the supporting baffle are barrel-shaped structures.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] 1. Invention device A muffler device for reducing the pressure relief noise of a high-pressure gas tank comprises a baffle, a muffler shell, a storage shell and a support baffle. The high-efficiency combination of throttling and pressure reduction plus small hole injection plus resistive sound-absorbing materials can effectively control the high-pressure steam exhaust noise, significantly reduce the noise value, and thus reduce the harm to the human body.

[0042] 2. The baffle cover of the device of the present invention comprises a baffle plate and a diversion wall.

[0043] The baffle plate plays a buffering role. After the gas discharged from the high-pressure gas tank rushes out from the connecting pipe 1, it directly faces the baffle plate. The baffle plate removes part of the impact force of the gas discharged from the high-pressure gas tank, thereby reducing the discharge pressure of the gas discharged from the high-pressure gas tank.

[0044] The diversion wall discharges the exhaust gas of the high-pressure gas tank through the diversion hole. The discharge of the exhaust gas of the high-pressure gas tank is interrupted and scattered in all directions and discharged from the diversion holes on the side.

[0045] The principle of throttling and pressure reduction is adopted to disperse the total exhaust pressure drop to various diversion holes, and the sudden pressure discharge is changed to gradual pressure discharge to obtain the sound reduction effect.

[0046] 3. A semicircular silencer is provided on the side wall of the support baffle of the device of the present invention. The semicircular structure can guide the exhaust gas of the high-pressure gas tank to propagate along its surface, thereby increasing the contact area and time between the exhaust gas of the high-pressure gas tank and the resistive sound-absorbing material, and improving the silencer efficiency of the device of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 A schematic diagram of the internal structure of a certain embodiment of a silencing device for reducing the pressure relief noise of a high-pressure gas tank proposed by the present invention;

[0048] Figure 2 This is a structural schematic diagram of a certain embodiment of a silencing device for reducing the pressure relief noise of a high-pressure gas tank proposed by the present invention;

[0049] Figure 3 A schematic diagram of the partial structure of a certain embodiment of a silencing device for reducing the pressure relief noise of a high-pressure gas tank proposed by the present invention;

[0050] Figure 4 A cross-sectional view of a certain embodiment of a silencing device for reducing the pressure relief noise of a high-pressure gas tank proposed by the present invention;

[0051] Figure 5 A schematic diagram of the internal structure of a certain embodiment of a silencing device for reducing the pressure relief noise of a high-pressure gas tank proposed by the present invention;

[0052] Figure 6 This is a structural schematic diagram of a certain embodiment of a silencing device for reducing the pressure relief noise of a high-pressure gas tank proposed by the present invention;

[0053] Figure 7 A schematic diagram of the internal structure of a certain embodiment of a silencing device for reducing the pressure relief noise of a high-pressure gas tank proposed by the present invention;

[0054] Figure 8 A side view of a certain embodiment of a silencing device for reducing the pressure relief noise of a high-pressure gas tank proposed by the present invention;

[0055] Fig. 9 A cross-sectional view of a certain embodiment of a silencing device for reducing the pressure relief noise of a high-pressure gas tank proposed by the present invention;

[0056] Fig.10 This is a structural schematic diagram of an air outlet plate of a silencing device for reducing the pressure relief noise of a high-pressure gas tank proposed by the present invention;

[0057] Fig.11 A side view of a support baffle of a muffler device for reducing the pressure relief noise of a high-pressure gas tank proposed by the present invention;

[0058] Fig.12 The present invention provides a side view of a silencer component of a silencer device for reducing the pressure relief noise of a high-pressure gas tank.

[0059] Description of reference numerals:

[0060] 1. Connecting pipe,

[0061] 2. Storage shell,

[0062] 2-1. Noise-absorbing shell,

[0063] 2-1-1, injection hole,

[0064] 2-2. Shield,

[0065] 2-2-1, diversion hole,

[0066] 2-2-2, baffle,

[0067] 2-2-3, diverter wall,

[0068] 2-3, vents,

[0069] 3. Support baffle,

[0070] 3-1. Silencers,

[0071] 3-2, the first baffle,

[0072] 3-3, the second baffle,

[0073] 3-4. Hook,

[0074] 3-5, groove,

[0075] 4. Air outlet plate,

[0076] 4-1. Air vent. DETAILED DESCRIPTION

[0077] The specific implementation of the present invention is described below in conjunction with the accompanying drawings and embodiments:

[0078] It should be noted that the structures, colors, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0079] At the same time, in the description of the present invention, it should be understood that the terms "one end", "the other end", "middle", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0080] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0081] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0082] like Figure 1-Figure 12 The present invention proposes a silencing device for reducing the pressure relief noise of a high-pressure gas tank, comprising a connecting pipe 1 connected to the air outlet of a pressure relief valve of the high-pressure gas tank, through which the gas discharged from the high-pressure gas tank enters a subsequent silencing device.

[0083] Embodiment 1:

[0084] like Figure 1-Figure 4 As shown, the connecting pipe 1 is connected to the storage shell 2, and the gas discharged from the high-pressure gas tank is discharged into the storage shell 2 for noise reduction treatment. The storage shell 2 is hollow inside, and various hollow structures such as cube, rectangular, circular, cylindrical, etc. can be selected, and a receiving cavity is set to store the gas discharged from the high-pressure gas tank.

[0085] A prefabricated hole is provided at the connection position of the storage shell 2 and the connecting pipe 1 for the connecting pipe 1 to extend into the storage shell 2. The connecting pipe 1 directly extends into the storage shell 2 through the prefabricated hole, and the gas discharged from the high-pressure gas tank is completely discharged into the storage shell 2, thereby preventing problems from occurring when the two contact each other, which would cause the gas discharged from the high-pressure gas tank to leak and affect the surroundings.

[0086] Preferably, a sealing gasket may be provided at the contact position between the storage shell 2 and the connecting tube 1 to ensure the tightness of the connection between the two and prevent air leakage.

[0087] A silencer shell 2-1 is provided inside the storage shell 2, and the gas discharged from the high-pressure gas tank is silenced by the silencer shell 2-1. After the silencer shell 2-1 inside the storage shell 2 performs the silencer treatment, the storage shell 2 stores the silenced gas.

[0088] The surface of the muffler shell 2-1 is provided with an injection hole 2-1-1, and the gas in the muffler shell 2-1 is discharged into the storage shell 2 through the injection hole 2-1-1.

[0089] The specific principle adopted is the frequency shift effect of small hole injection, that is, when the sound power remains unchanged, small hole injection can change the frequency spectrum characteristics of the noise, shift the noise from low frequency to high frequency, and make the peak frequency fall within the frequency range that the human ear is insensitive to (>8000Hz) or the ultrasonic frequency range that cannot be felt (>20000Hz).

[0090] A baffle 2-2 is provided inside the silencer shell 2-1. The gas discharged from the high-pressure gas tank in the connecting pipe 1 passes through the bottom surface of the storage shell 2 through the connecting pipe 1 and is sent into the bottom of the silencer shell 2-1. Due to the obstruction of the baffle 2-2, the gas cannot directly enter the silencer shell 2-1, and can only enter the silencer shell 2-1 through the diversion hole 2-2-1 provided in the baffle 2-2.

[0091] The baffle 2-2 can be in a semicircular shape, in which the gas discharged from the high-pressure gas tank is rushed into the center part and then dispersed to the diversion holes 2-2-1 around the center. It can also be in a conical shape. The principle is the same as that of the semicircular structure. The gas discharged from the high-pressure gas tank is first depressurized through the top surface, and then enters the silencer shell 2-1 through the diversion holes 2-2-1 set on the side.

[0092] In addition, the deflector 2-2 can also use a structure of a horizontal top surface and side walls. After the gas discharged from the high-pressure gas tank rushes into the deflector 2-2, it is depressurized through the horizontal top surface and disperses at the same time, and then enters the silencer shell 2-1 through the side diversion hole 2-2-1.

[0093] The baffle 2-2 is arranged on one side of the opening of the muffler shell 2-1, so that the gas discharged from the high-pressure gas tank directly faces the baffle 2-2 after coming out of the connecting pipe 1. The throttling and pressure reduction principle is adopted to disperse the total pressure drop of the exhaust steam to the diversion holes 2-2-1 at various locations, that is, the pressure sudden change emptying is changed to the pressure gradual change emptying to obtain the muffler effect. The discharge pressure of the gas discharged from the high-pressure gas tank is reduced by the baffle 2-2 and then discharged into the muffler shell 2-1, and the muffler shell 2-1 performs the muffler treatment.

[0094] The inner wall of the storage shell 2 is affixed with a first resistive sound absorbing material. The gas discharged from the high-pressure gas tank enters the resistive sound absorbing layer after throttling and pressure reduction and small hole injection. The friction and viscous resistance of the sound wave in the sound absorbing material convert the sound energy into heat energy, thereby achieving a sound elimination effect.

[0095] A vent hole 2 - 3 is provided on a side of the storage shell 2 away from the connecting pipe 1 , and the gas after the sound-absorbing treatment is discharged through the vent hole 2 - 3 .

[0096] The silencing principle specifically adopted by the silencing device for reducing the pressure relief noise of a high-pressure gas tank of the present invention is that the silencing steps experienced by the gas discharged from the high-pressure gas tank after being sent into the silencing device through the connecting pipe 1 are as follows:

[0097] 1. The gas discharged from the high-pressure gas tank enters the muffler shell 2-1 through the connecting pipe 1;

[0098] 2. A baffle 2-2 is arranged inside the muffler shell 2-1, and the baffle 2-2 reduces the discharge pressure of the gas through the throttling and pressure reduction principle;

[0099] 3. The anechoic shell 2-1 utilizes the frequency shift effect of small hole injection to change the spectrum characteristics of the noise, shifting the noise from low frequency to high frequency, so that the peak frequency falls within the frequency range that the human ear is insensitive to or the ultrasonic frequency range that cannot be felt.

[0100] 4. The gas discharged from the high-pressure gas tank enters the storage shell 2 through the injection hole 2-1-1, and is subjected to a second noise reduction treatment by the first resistive sound absorbing material in the storage shell 2;

[0101] 5. The exhaust gas from the high-pressure gas tank after the silencing treatment is discharged from the vent hole 2-3 to complete the silencing operation.

[0102] The invented device is a silencing device for reducing the pressure relief noise of high-pressure gas tanks. The device adopts a highly efficient combination of throttling and pressure reduction + small hole injection + resistive sound-absorbing materials, which can effectively control the high-pressure steam exhaust noise and significantly reduce the noise value, thereby reducing the harm to the human body.

[0103] Embodiment 2:

[0104] like Figure 5-12As shown, on the basis of Example 1, in order to ensure the sound-absorbing effect of the device of the present invention, a support baffle 3 is provided on the side where the vent hole 2-3 is provided to perform a second sound-absorbing treatment.

[0105] Specific:

[0106] The side of the storage shell 2 away from the connecting pipe 1 is connected to a support baffle 3, and a muffler 3-1 is arranged on the side of the support baffle 3, and the muffler 3-1 is annularly fixed around the support baffle 3. In addition, the number of mufflers 3-1 is not fixed, and is determined according to the actual situation on site, considering the muffler effect and the overall weight of the device, to ensure that the muffler efficiency of the device of the present invention is maximized.

[0107] The silencers 3-1 are arranged in sequence through the support baffle 3. After the gas discharged from the vent 2-3 passes through layer after layer of silencers 3-1, the sound value is greatly reduced, achieving a silencer effect, thereby reducing harm to the human body.

[0108] The other side of the support baffle 3 is connected to an air outlet plate 4, which is provided with an air outlet hole 4-1. The gas can only be discharged through the air outlet hole 4-1. The function of the air outlet hole 4-1 is the same as that of the air outlet hole 4-1, which is to discharge the gas after the sound elimination treatment out of the device.

[0109] Based on Example 1, the gas discharged from the high-pressure gas tank passes through the silencer 3-1 on the side of the support baffle 3 again for silencer treatment, further reducing the sound value of the noise of the gas discharged from the high-pressure gas tank, thereby ensuring the silencer effect of the device of the present invention.

[0110] Embodiment 3:

[0111] like Figure 1 , Figure 3 and Figure 4 As shown, based on the above embodiment, the structure of the deflector 2-2 is further defined.

[0112] Specific:

[0113] The baffle cover 2-2 includes a baffle plate 2-2-2 and a diverter wall 2-2-3, the diverter wall 2-2-3 connects the baffle plate 2-2-2 and the muffler shell 2-1, and the diverter hole 2-2-1 is arranged on the diverter wall 2-2-3, so that the baffle plate 2-2-2 and the muffler shell 2-1 are sealed, and the exhaust gas of the high-pressure gas tank can only be discharged through the diverter hole 2-2-1 on the diverter wall 2-2-3.

[0114] The baffle plate 2-2-2 acts as a buffer. The gas discharged from the high-pressure gas tank rushes out of the connecting pipe 1 and directly faces the baffle plate 2-2-2. The baffle plate 2-2-2 removes part of the impact force of the gas discharged from the high-pressure gas tank, thereby reducing the discharge pressure of the gas discharged from the high-pressure gas tank.

[0115] The diverter wall 2-2-3 is used to discharge the gas from the high-pressure gas tank through the diverter hole 2-2-1. The diverter wall 2-2-3 connects the baffle plate 2-2-2 and the silencer shell 2-1. The discharge of the gas discharged from the high-pressure gas tank is interrupted and scattered in all directions, and can only be discharged from the diverter hole 2-2-1 at the side.

[0116] The baffle plate 2-2-2 is correspondingly arranged at the end of the connecting pipe 1 to ensure that the baffle plate 2-2-2 can accurately block the gas discharged from the high-pressure gas tank.

[0117] Embodiment 4:

[0118] like Figure 1 , Figure 3 and Figure 4 As shown, on the basis of Example 3, the area of ​​the baffle 2-2-2 is further limited to ensure that the exhaust gas from the high-pressure gas tank has enough space to enter the silencer shell 2-1 after passing through the baffle 2-2-2, thereby ensuring that the exhaust gas from the high-pressure gas tank is evenly dispersed.

[0119] The area of ​​the baffle 2-2-2 is smaller than the bottom area of ​​the silencer shell 2-1, and the area of ​​the baffle 2-2-2 is larger than the cross-sectional area of ​​the connecting pipe 1. The area of ​​the baffle 2-2-2 is between the bottom area of ​​the silencer shell 2-1 and the cross-sectional area of ​​the connecting pipe 1, which can ensure that the baffle 2-2-2 can completely block the exhaust gas of the high-pressure gas tank discharged from the connecting pipe 1 while leaving enough space in the silencer shell 2-1 for the exhaust gas of the high-pressure gas tank to disperse. The above-mentioned arrangement makes the diverter wall 2-2-3 inclined, thereby increasing the dispersion area of ​​the exhaust gas of the high-pressure gas tank.

[0120] Embodiment 5:

[0121] On the basis of the above-mentioned embodiment, a resistive sound absorbing material is arranged inside the device of the present invention at a position contacting the exhaust gas of the high-pressure gas tank, so as to further improve the sound elimination performance of the device of the present invention and improve its sound elimination efficiency.

[0122] Specifically, a second resistive sound absorbing material is provided on the surface of the support baffle 3 contacting the exhaust gas of the high-pressure gas tank and the inner surface of the silencer 3-1. The friction and viscous resistance of the sound waves in the sound absorbing material convert the sound energy into heat energy, thereby achieving the sound elimination effect.

[0123] Embodiment 6:

[0124] like Figure 5 and Fig. 9 As shown, based on the above embodiment, the structure of the supporting baffle 3 is further defined.

[0125] Specific:

[0126] The supporting baffle 3 includes a first baffle 3-2 and a second baffle 3-3, wherein the cross-sectional perimeter of the second baffle 3-3 is smaller than the cross-sectional perimeter of the first baffle 3-2, so that a space is reserved between the first baffle 3-2 and the second baffle 3-3 for setting the silencer 3-1.

[0127] In addition, the silencer 3-1 of the first baffle 3-2 and the silencer 3-1 of the second baffle 3-3 are arranged alternately to ensure that the exhaust gas from the high-pressure air pipe can fully contact the silencer 3-1 after being discharged from the vent hole 2-3, thereby improving the silencer efficiency.

[0128] Preferably, the number of the first baffle 3-2 and the second baffle 3-3 is not fixed and is determined according to the actual situation. According to the position of the first baffle 3-2 and the second baffle 3-3, a new supporting baffle can be nested inside them, and a muffler can be set accordingly. At the same time, a corresponding resistive sound-absorbing material can be set at a position that can contact the exhaust gas of the high-pressure gas tank to ensure that the area of ​​the gas contacting the sound-absorbing material is maximized and the device has the highest muffler efficiency.

[0129] Embodiment 7:

[0130] like Figure 5 and Fig. 9 As shown, based on the above embodiment, the silencer 3-1 is semicircularly attached to the side of the supporting baffle 3, and the semicircular structure can guide the exhaust gas of the high-pressure gas tank to propagate along its surface, thereby increasing the contact area and time between the exhaust gas of the high-pressure gas tank and the resistive sound-absorbing material, thereby improving the silencer efficiency of the device of the present invention.

[0131] like Fig.10 and Fig.11 As shown, a hook 3-4 is provided on the side wall of the support baffle 3, a groove 3-5 corresponding to the hook 3-4 is provided on the bottom surface of the muffler 3-1, and the muffler 3-1 is fixed to the side of the support baffle 3 by hanging.

[0132] Embodiment 8:

[0133] On the basis of the above embodiment, the first resistive sound absorbing material and the second resistive sound absorbing material are both made of glass wool.

[0134] Glass wool, with its unique fiber structure and porosity, can effectively absorb sound waves. When sound waves encounter glass wool, they propagate between the fibers and generate friction and vibration, thereby converting the energy of the sound waves into heat energy, achieving efficient sound absorption.

[0135] Specifically, ultra-fine glass wool with a density of 15-25kg / m3 and a porosity of 95% can be used. Its fibers are finer and more evenly distributed, providing more sound wave absorption channels. The porous structure of ultra-fine glass wool and the three-dimensional cross-entanglement between fibers enable it to effectively absorb sound waves and reduce the spread of noise.

[0136] Preferably, in order to compensate for the shortcoming of high water absorption rate of the sound absorbing material, glass cloth may be added to the ultra-fine glass wool to avoid the impact of steam flow on the sound absorbing material.

[0137] Embodiment 9:

[0138] Based on Example 1, the connecting pipe 1 is a threaded structure, which can form an effective seal through the tight fit of the threads. During the transmission of high-pressure gas, this structure can ensure that the gas will not leak, thereby ensuring the safety and efficiency of transmission.

[0139] In addition, the thread structure has high strength and durability. Under the impact of high-pressure gas, the threaded connection can remain stable and is not easy to loosen or fall off. It can withstand large vibrations and shocks, ensuring the stability and reliability of gas transmission.

[0140] Embodiment 10:

[0141] like Figure 1-9 As shown, based on the above embodiment, the storage shell 2 adopts a cylindrical structure, which can better adapt to various spatial environments and can effectively utilize space for storage whether it is a corner or a plane.

[0142] The silencer shell 2-1 adopts a barrel-shaped structure, which has good mechanical stability and can disperse and withstand large internal pressure, ensuring that the silencer shell 2-1 will not be deformed or damaged during long-term use.

[0143] The support baffle 3 is a barrel-shaped structure, which can provide stronger support force to ensure that the fixed position of the supported muffler 3-1 will not be deformed or shifted due to gravity. In addition, the barrel-shaped structure is hollow inside, and new support baffles can be nested inside it according to actual conditions to ensure maximum muffler efficiency.

[0144] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

[0145] Many other changes and modifications may be made without departing from the concept and scope of the present invention.It should be understood that the present invention is not limited to the specific embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. A silencing device for reducing the noise of high-pressure gas tank decompression, used to reduce the noise when the high-pressure gas tank is decompressed, It is characterized in that It includes a connecting pipe (1) connected to the outlet of the pressure relief valve of the high-pressure gas tank, The connecting pipe (1) is connected to a storage shell (2). A prefabricated hole is provided at the position where the storage shell (2) and the connecting tube (1) are connected, so that the connecting tube (1) can extend into the storage shell (2). A sound-absorbing shell (2-1) is arranged inside the storage shell (2). The surface of the muffler shell (2-1) is provided with injection holes (2-1-1). A baffle (2-2) is arranged inside the muffler shell (2-1). The baffle cover (2-2) is provided with a flow diversion hole (2-2-1). The baffle cover (2-2) is arranged on a side where the opening of the muffler shell (2-1) is arranged. The inner wall of the storage shell (2) is affixed with a first resistive sound absorbing material. A vent hole (2-3) is provided on a side of the storage shell (2) away from the connecting pipe (1).

2. A silencing device for reducing the pressure relief noise of a high-pressure gas tank as claimed in claim 1, It is characterized in that A support baffle (3) is connected to a side of the storage shell (2) away from the connecting pipe (1). The other side of the support baffle (3) is connected to an air outlet plate (4). The air outlet plate (4) is provided with an air outlet hole (4-1). A sound-absorbing component (3-1) is provided on the side of the supporting baffle (3).

3. A silencing device for reducing the pressure relief noise of a high-pressure gas tank as claimed in any one of claims 1 or 2, It is characterized in that The baffle cover (2-2) comprises a baffle plate (2-2-2) and a flow dividing wall (2-2-3). The flow dividing wall (2-2-3) connects the baffle plate (2-2-2) and the muffler shell (2-1). The flow dividing hole (2-2-1) is arranged on the flow dividing wall (2-2-3), The baffle plate (2-2-2) is correspondingly arranged at the end of the connecting pipe (1).

4. A silencing device for reducing the pressure relief noise of a high-pressure gas tank as claimed in claim 3, It is characterized in that The area of ​​the baffle plate (2-2-2) is smaller than the bottom area of ​​the muffler shell (2-1). The area of ​​the baffle plate (2-2-2) is larger than the cross-sectional area of ​​the connecting pipe (1).

5. A silencing device for reducing the pressure relief noise of a high-pressure gas tank as claimed in claim 2, It is characterized in that A second resistive sound absorbing material is provided on the surface of the supporting baffle (3) and the surface of the sound-absorbing element (3-1).

6. A silencing device for reducing the pressure relief noise of a high-pressure gas tank as claimed in claim 2, It is characterized in that The supporting baffle (3) comprises a first baffle (3-2) and a second baffle (3-3), The cross-sectional perimeter of the second baffle (3-3) is smaller than the cross-sectional perimeter of the first baffle (3-2), The sound-absorbing member (3-1) of the first baffle plate (3-2) and the sound-absorbing member (3-1) of the second baffle plate (3-3) are arranged alternately.

7. A silencing device for reducing the pressure relief noise of a high-pressure gas tank as claimed in claim 2, It is characterized in that The muffler (3-1) is in a semicircular shape and is attached to the side of the supporting baffle (3); The side wall of the supporting baffle (3) is provided with a hook (3-4). The bottom surface of the muffler (3-1) is provided with a groove (3-5) corresponding to the hook (3-4).

8. A silencing device for reducing the pressure relief noise of a high-pressure gas tank as claimed in claim 5, It is characterized in that The first resistive sound absorbing material and the second resistive sound absorbing material are both made of glass wool.

9. A silencing device for reducing the pressure relief noise of a high-pressure gas tank as claimed in claim 1, It is characterized in that The connecting pipe (1) is of a threaded structure.

10. A silencing device for reducing the pressure relief noise of a high-pressure gas tank as claimed in claim 2, It is characterized in that The storage shell (2) adopts a cylindrical structure. The muffler shell (2-1) and the supporting baffle (3) are barrel-shaped structures.

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