A composite exhaust muffler

Abstract

The invention discloses a composite exhaust muffler, belonging to the technical field of industrial air conditioning, comprising a muffler steam guide cavity, an exhaust muffler shell installed at the bottom of the muffler steam guide cavity, six muffler external steam guide ports installed on the side of the exhaust muffler shell, and a base fixedly installed at the bottom of the exhaust muffler shell by screws, and six muffler components are installed inside the exhaust muffler shell. It can realize the functions of filtering, silencing and exhausting steam in the exhaust process of the equipment, effectively avoid the pollution of solid impurities to the air, effectively reduce the silencing cost of the equipment, avoid the long-term accumulation of solid impurities inside the muffler, and ensure the lasting and effective silencing effect of the device.

Description

Technical Field

[0001] The invention relates to the technical field of industrial air conditioning, and more particularly to a composite exhaust muffler. Background Art

[0002] A muffler is a device that blocks the propagation of sound while allowing airflow to pass through. It is an important measure to eliminate aerodynamic noise. When in use, the muffler is installed on the airflow channel of aerodynamic equipment (such as blowers and air compressors). The muffler can block the propagation of sound waves and allow airflow to pass through. It is an effective tool for controlling noise. Most existing mufflers use impedance composite mufflers. Impedance composite mufflers refer to mufflers that properly combine sound absorption and sound reflection. It has the characteristics of resistive mufflers to eliminate medium and high frequency noise and reactive mufflers to eliminate low and medium frequency noise, and has a wide-band noise elimination effect.

[0003] When the exhaust equipment is silenced, the exhaust silencer works, consuming energy for the gas to pass through the silencer and completing the silencer. At this time, since the gas is easily mixed with some fixed impurities, some solid impurities are likely to remain in the steam silencer, while the other part of the solid impurities will be discharged, which may cause air pollution. Common industrial exhaust silencers are not easy to separate, so the solid impurities will gradually accumulate inside the exhaust silencer. Over time, it will cause the exhaust silencer to be blocked, affect the silencer effect, and even cause damage to the silencer. When replacing the entire silencer, the silencer cost will be greatly increased.

[0004] Therefore, in view of this, the existing structure is studied and improved, and a composite exhaust muffler is provided to achieve a more practical purpose. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide a composite exhaust silencer, which can realize the functions of filtering, silencing and exhausting steam in the exhaust process of the equipment, effectively avoiding the pollution of the air by solid impurities, and when the device is used for a long time, the device can be disassembled and any part can be cleaned or replaced to avoid replacing the entire silencer, thereby effectively reducing the silencer cost of the equipment. At the same time, the device can promptly remove solid impurities in the entire device to avoid the long-term accumulation of solid impurities inside the silencer, thereby ensuring the long-lasting and effective silencer effect of the device.

[0007] 2. Technical solution

[0008] To solve the above problems, the present invention adopts the following technical solutions.

[0009] A composite exhaust muffler comprises a muffler steam guide cavity, an exhaust muffler shell installed at the bottom of the muffler steam guide cavity, six muffler external steam guide ports installed at the side of the exhaust muffler shell, and a base fixedly installed at the bottom of the exhaust muffler shell by screws, wherein six muffler components are installed inside the exhaust muffler shell;

[0010] An outer sleeve is fixedly provided at the bottom of the muffler steam guide cavity, and four internal thread cylinders evenly distributed in a ring shape are provided on the outer peripheral side of the outer sleeve, and the internal thread cylinders are all fixed to the bottom of the muffler steam guide cavity, and the top of the exhaust muffler shell is stuck into the outside of the outer sleeve, and four internal thread seats are fixedly installed on the side of the exhaust muffler shell, and the four internal thread seats correspond to the four internal thread cylinders one by one and are tightly attached, and the internal thread seats tightly attached to each other are threadedly connected with the internal thread cylinders with locking bolts;

[0011] The silencer assembly includes a long cylinder, which is a hollow sandwich structure and is filled with sound insulation sponge at the sandwich position. One end of the long cylinder is threadedly connected to an upper sealing platform, and an inner steam guide port is installed on the top of the upper sealing platform. The inner steam guide port passes through the shell of the muffler steam guide cavity and is connected to the interior of the muffler steam guide cavity. The other end of the long cylinder is threadedly connected to a lower sealing seat, and a plurality of steam injection holes are opened in the middle of the side of the long cylinder. A spring long rod is fixedly installed at the top of the lower sealing seat and located in the internal position of the long cylinder, and a sealing piston is fixedly installed at one end of the spring long rod away from the lower sealing seat. The sealing piston slides along the inner wall of the long cylinder, and a limiting ring is fixedly installed in the inner middle of the long cylinder, and solid adsorption cotton is arranged inside the long cylinder and between the limiting ring and the upper sealing platform.

[0012] Further, the muffler steam guide cavity includes a cavity chamber and a steam pipe, and the steam pipe is arranged at the top of the cavity chamber and communicates with the interior of the cavity chamber;

[0013] Six installation openings are arranged inside the cavity, and sealing strips are arranged inside the installation openings. The six installation openings are respectively connected to the internal steam guide ports in the six silencer components.

[0014] Furthermore, a hollow hexagonal column is provided in the middle of the exhaust silencer shell, the bottom end of the hollow hexagonal column is in contact with the base, and the top end of the hollow hexagonal column is fixed to the bottom of the muffler steam guide cavity.

[0015] Furthermore, a sealing sleeve is fixedly installed on the middle part of the inner side surface of the exhaust silencer shell, and six through grooves are provided on the sealing sleeve, and the inner sides of the six through grooves respectively correspond to the positions of the steam injection holes on the six silencer components, and the outer sides of the six through grooves respectively correspond to the positions of the six external steam guide ports of the silencer.

[0016] Furthermore, the cross-section of the outer steam guide port of the muffler is a rectangular structure, and a dustproof net is fixedly installed at the outlet of the outer steam guide port of the muffler.

[0017] Furthermore, a strong spring short rod is fixedly installed at the top of the base and located at an internal position of the exhaust muffler shell, and a baffle is fixedly installed at one end of the strong spring short rod away from the base.

[0018] Furthermore, a shift collar is fixedly mounted on the top of the baffle plate, and the inner diameter of the shift collar is twice the outer diameter of the long cylinder.

[0019] Furthermore, a triangular base is fixedly installed on the outer side of the long cylinder, and the side surface of the triangular base is in close contact with the side surface of the hollow hexagonal prism.

[0020] Furthermore, the steam injection holes are distributed on the side of the long cylinder away from the triangular base, and the distribution wide angle range of the steam injection holes is not greater than 180°.

[0021] Furthermore, a ventilation block is fixedly installed on the top of the lower sealing seat, one end of the spring long rod is fixed to the ventilation block, a plurality of air ports are arranged on the side of the ventilation block, and a hollow column is arranged at the center of the ventilation block, and the air ports are connected to the outside of the long cylinder through the hollow column;

[0022] One end of the hollow column of the ventilation block is provided with a threaded opening, and a hand screw is threadedly connected through the threaded opening.

[0023] 3. Beneficial effects

[0024] Compared with the prior art, the advantages of the present invention are:

[0025] ① In this scheme, when performing silencing operation on the exhaust equipment, the steam discharged from the equipment is introduced into the interior of the device through the steam pipe of the steam guide cavity of the silencer of the device, and then the steam passes through the cavity chamber, the internal steam guide port, and reaches the long cylinder in sequence. Inside the long cylinder, solid impurities are adsorbed by solid adsorption cotton to achieve the function of filtering impurities and effectively avoid the possible pollution of the air by solid impurities. The combination of the spring long rod and the sealing piston is used to generate resistance to the flow of the steam, thereby consuming energy for the steam, reducing the flow rate of the steam, and realizing the silencing function during the exhaust. The steam with reduced flow rate is discharged from the steam injection hole, and passes through the through groove and the external steam guide port of the muffler in sequence, and is discharged externally, so that the exhaust function can be realized;

[0026] ② In this scheme, since the main muffler part of the entire device is composed of six muffler components, solid impurities will accumulate inside the muffler components when the device is used for a long time. At this time, since the steam guide cavity, exhaust muffler shell, base and muffler components in the device are all independent components, a certain part can be separated by releasing the lock of the device by screws, bolts or buckles. At the same time, the muffler components can also be disassembled. In this way, any detached part can be cleaned or replaced, avoiding the replacement of the entire muffler, effectively reducing the muffler cost of the equipment;

[0027] ③ In this scheme, while the device completes the silencing of the exhaust steam, the solid impurities in the entire device can be removed in time through the operation of the separation device, avoiding the long-term accumulation of solid impurities inside the silencer, thus ensuring the long-lasting and effective silencing effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The three-dimensional structure of the composite exhaust muffler in the present invention is shown in FIG. Figure 1 ;

[0029] Figure 2 The three-dimensional structure of the composite exhaust muffler in the present invention is shown in FIG. Figure 2 ;

[0030] Figure 3 The structure of the steam guide cavity of the muffler in the present invention is shown in FIG. Figure 1 ;

[0031] Figure 4 The structure of the steam guide cavity of the muffler in the present invention is shown in FIG. Figure 2 ;

[0032] Figure 5 It is a structural schematic diagram of the exhaust muffler housing in the present invention;

[0033] Figure 6 It is a schematic diagram of the structure of the sealing sleeve in the present invention;

[0034] Figure 7 It is a schematic diagram of the internal plan view of the composite exhaust muffler of the present invention;

[0035] Figure 8 It is a schematic diagram of the three-dimensional structure of the base in the present invention;

[0036] Fig. 9 It is a three-dimensional structural schematic diagram of the muffler assembly in the present invention;

[0037] Fig.10 The internal structure of the muffler assembly of the present invention is shown in FIG. Figure 1 ;

[0038] Fig.11The internal structure of the muffler assembly of the present invention is shown in FIG. Figure 2 .

[0039] Description of the numbers in the figure:

[0040] 1. Muffler steam guide cavity;

[0041] 101, outer sleeve ring; 102, internal thread cylinder;

[0042] 103, hollow chamber; 1031, installation opening;

[0043] 104. Gas pipeline;

[0044] 2. Exhaust muffler housing;

[0045] 201, internal thread seat; 202, locking bolt; 203, hollow hexagonal prism; 204, sealing sleeve; 2041, through groove;

[0046] 3. Muffler external steam guide port;

[0047] 301, dust screen;

[0048] 4. Base;

[0049] 401, strong spring short rod;

[0050] 402, baffle plate; 4021, gear collar;

[0051] 5. Noise reduction components;

[0052] 501, long cylinder; 5011, triangular base;

[0053] 502, upper sealing platform; 503, internal steam guide port;

[0054] 504, lower sealing seat; 5041, ventilation block; 5042, air port; 5043, hand screw;

[0055] 505, steam injection hole; 506, spring long rod; 507, sealing piston; 508, limiting ring; 509, solid adsorption cotton. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0057] Embodiment 1:

[0058] See also Figure 1 - Fig.11 A composite exhaust muffler includes a muffler steam guide cavity 1, and the gas exhausted from the equipment is introduced into the muffler steam guide cavity 1.

[0059] An exhaust silencer shell 2 is installed at the bottom of the silencer steam guide cavity 1, and six silencer components 5 are installed inside the exhaust silencer shell 2. The gas in the silencer steam guide cavity 1 is dispersed and introduced into the six silencer components 5 in the exhaust silencer shell 2, and the silencer and impurity filtering operations are completed in the six silencer components 5 respectively.

[0060] The six silencer external steam guide ports 3 installed on the side of the exhaust silencer housing 2 are respectively discharged from the silencer external steam guide ports 3 at the corresponding positions after the gas substances are discharged after completing the silencing and impurity removal in the silencer assembly 5, thus completing the exhaust process.

[0061] The base 4 is fixedly mounted on the bottom of the exhaust silencer housing 2 by screws. The base 4 can contact the ground or the installation plane and ensure the stability of the entire device when in use.

[0062] An outer ring 101 is fixedly provided at the bottom of the muffler steam guide cavity 1, and the top of the exhaust muffler shell 2 is inserted into the outside of the outer ring 101. The outer ring 101 can ensure that the exhaust muffler shell 2 is better inserted into its interior, thereby ensuring the tightness and sealing of the connection of the muffler steam guide cavity 1.

[0063] Four internally threaded cylinders 102 evenly distributed in a ring shape are arranged on the outer circumference of the outer sleeve 101, and the internally threaded cylinders 102 are all fixed to the bottom of the muffler steam guiding cavity 1, and four internally threaded seats 201 are fixedly installed on the side of the exhaust muffler shell 2, and the four internally threaded seats 201 correspond to and are tightly attached to the four internally threaded cylinders 102 one by one, and the internally threaded seats 201 and the internally threaded cylinders 102 tightly attached to each other are threadedly connected with locking bolts 202. The locking bolts 202 are passed through the internally threaded seats 201 and the internally threaded cylinders 102 in turn and tightened along the thread direction, so as to complete the locking of the internally threaded seats 201 and the internally threaded cylinders 102, and then complete the position locking between the exhaust muffler shell 2 and the muffler steam guiding cavity 1. When the two are locked, the assembly of the device can be completed, and when the two are unlocked, it is convenient to disassemble the entire device, and finally it is convenient to complete the replacement of the muffler assembly 5.

[0064] The silencer assembly 5 includes a long cylinder 501, which is a hollow sandwich structure and is filled with sound insulation sponge at the sandwich position. The long cylinder 501 serves as the outer shell structure of the entire silencer assembly 5 and has the function of limiting the flow direction of the gas. At the same time, when the gas flows in the long cylinder 501, it may hit the inner wall of the long cylinder 501. At this time, the sound insulation sponge in the sandwich can prevent the impact sound from being transmitted outward.

[0065] One end of the long cylinder 501 is threadedly connected to an upper sealing platform 502, and an inner steam guide port 503 is installed on the top of the upper sealing platform 502. The inner steam guide port 503 passes through the shell of the muffler steam guide cavity 1 and is connected to the interior of the muffler steam guide cavity 1. The upper sealing platform 502 is tightened to the long cylinder 501 through threads. In this way, it can be ensured that the steam can only pass through the upper sealing platform 502 through the inner steam guide port 503 and reach the interior of the long cylinder 501, and the gas in the inner steam guide port 503 can only come from the muffler steam guide cavity 1, that is, the upper sealing platform 502 can ensure the sealing between one end of the long cylinder 501 and the outside world.

[0066] The other end of the long cylinder 501 is threadedly connected with a lower sealing seat 504. The function of the lower sealing seat 504 is similar to that of the upper sealing platform 502, and can ensure the sealing between the other end of the long cylinder 501 and the outside world.

[0067] A limit ring 508 is fixedly installed in the middle of the inner part of the long cylinder 501, and a solid adsorption cotton 509 is arranged inside the long cylinder 501 and between the limit ring 508 and the upper sealing platform 502. The gas entering the long cylinder 501 first passes through the solid adsorption cotton 509. At this time, the solid adsorption cotton 509 can effectively adsorb solid debris in the gas, thereby completing the function of filtering and cleaning the gas of the device.

[0068] A spring rod 506 is fixedly installed at the top of the lower sealing seat 504 and located in the inner position of the long cylinder 501. A sealing piston 507 is fixedly installed at the end of the spring rod 506 away from the lower sealing seat 504. The sealing piston 507 slides along the inner wall of the long cylinder 501. When the sealing piston 507 slides along the inner wall of the long cylinder 501, the limit ring 508 limits the moving distance of the sealing piston 507 to the sealing platform 502 upward, and the spring rod 506 always remains in a compressed state, which can provide thrust for the sealing piston 507. When 07 is moved downward to the sealing seat 504 by the gas pressure, the gas encounters resistance and consumes kinetic energy at the same time. At this time, the long spring rod 506 continues to be compressed. As the compression amount of the long spring rod 506 increases, the elastic potential energy accumulated by the long spring rod 506 increases, which can increase the resistance of the sealing piston 507 to the gas in the opposite direction. In this way, the kinetic energy of the gas is consumed more and faster, thereby achieving rapid energy consumption when the gas moves. After the gas consumes energy, its speed decreases, and the sound generated during exhaust will be greatly reduced, thereby completing the function of exhaust silencing.

[0069] A plurality of steam injection holes 505 are provided in the middle of the side of the long cylindrical body 501. Before the steam enters the long cylindrical body 501, or when the steam just enters the long cylindrical body 501, the sealing piston 507 is located closer to the upper sealing platform 502. At this time, the steam cannot be discharged from the steam injection hole 505. When the steam in the long cylindrical body 501 increases, the steam impacts and pushes the sealing piston 507, consuming kinetic energy at the same time. After the steam that has consumed more kinetic energy completes filtering and energy-consuming silencing, it can be ejected from the steam injection hole 505, and then discharged to the outside along the direction of the muffler external steam guide port 3, thereby ensuring the cleanliness and low noise effect of the discharged steam.

[0070] Embodiment 2:

[0071] Based on the above embodiment 1, further description is given.

[0072] See also Figure 3 and Figure 4 Specifically, the muffler steam guide cavity 1 includes a cavity chamber 103 and a steam pipe 104. The steam pipe 104 is arranged at the top of the cavity chamber 103 and communicates with the interior of the cavity chamber 103. The steam pipe 104 is connected to the exhaust equipment through a flange, and the steam in the exhaust equipment passes through the steam pipe 104 and enters the interior of the cavity chamber 103.

[0073] Six installation ports 1031 are provided inside the cavity 103, and sealing strips are provided inside the installation ports 1031. The six installation ports 1031 are respectively connected to the internal steam ports 503 in the six silencer components 5. The internal steam ports 503 pass through the installation ports 1031 and are connected to the interior of the cavity 103. The sealing strips arranged inside the installation ports 1031 can ensure the sealing of the cavity 103 after being connected to the internal steam ports 503.

[0074] Specifically, a hollow hexagonal column 203 is provided in the middle of the exhaust silencer shell 2, the bottom end of the hollow hexagonal column 203 is in contact with the base 4, and the top end of the hollow hexagonal column 203 is fixed to the bottom of the silencer steam guide cavity 1. When the position locking between the exhaust silencer shell 2 and the silencer steam guide cavity 1 is completed by using the locking bolt 202, the silencer assembly 5 can be installed according to the six outer sides of the hollow hexagonal column 203. At the same time, the base 4 presses the bottom end of the hollow hexagonal column 203, and the steam will not enter the interior of the hollow hexagonal column 203. At the same time, the setting of the hollow hexagonal column 203 can save materials and facilitate the arrangement and fixation of the six silencer assemblies 5.

[0075] See also Figure 5 and Figure 6Specifically, a sealing sleeve 204 is fixedly installed on the middle part of the inner side surface of the exhaust silencer shell 2, and six through grooves 2041 are provided on the sealing sleeve 204, and the inner sides of the six through grooves 2041 respectively correspond to the positions of the steam injection holes 505 on the six silencer components 5, and the outer sides of the six through grooves 2041 respectively correspond to the positions of the six muffler external steam guide ports 3.

[0076] When the silencer assembly 5 is wrapped by the exhaust silencer housing 2, the sealing sleeve 204 will be tightly attached to the steam injection hole 505 and form a seal. At this time, the steam in the steam injection hole 505 can be ejected outward through the through groove 2041 and finally ejected outward from the corresponding muffler external steam guide port 3.

[0077] See also Figure 2 , Figure 5 and Figure 6 Specifically, the cross section of the muffler outer steam guide port 3 is a rectangular structure, and a dustproof net 301 is fixedly installed at the outlet of the muffler outer steam guide port 3. The rectangular structure can better control the exhaust direction of the muffler outer steam guide port 3, and at the same time, the dustproof net 301 can prevent external dust from entering the exhaust muffler housing 2 from the muffler outer steam guide port 3.

[0078] See also Figure 1 and Figure 8 Specifically, a strong spring short rod 401 is fixedly installed at the top of the base 4 and located inside the exhaust muffler housing 2, and a baffle 402 is fixedly installed at one end of the strong spring short rod 401 away from the base 4. The strong spring short rod 401 has a small telescopic range, but has a large elastic force within the telescopic range. When the muffler assembly 5 is encapsulated inside the exhaust muffler housing 2, the elastic force of the strong spring short rod 401 is used to push the baffle 402 to press the muffler assembly 5, and at the same time, the bottom of the hollow hexagonal prism 203 is pressed and sealed.

[0079] Specifically, a shift collar 4021 is fixedly mounted on the top of the baffle plate 402, and the inner diameter of the shift collar 4021 is twice the outer diameter of the long cylinder 501. The six silencer components 5 are arranged in a ring shape, and the side edges of the long cylinder 501 are in contact with each other, which limits the inner diameter of the shift collar 4021 and ensures that the side edges of the long cylinder 501 are in contact with the shift collar 4021, thereby further ensuring the stability of the silencer component 5 inside the exhaust muffler housing 2.

[0080] See also Fig. 9 , Fig.10 and Fig.11Specifically, a triangular base 5011 is fixedly mounted on the outer side of the long cylinder 501, and the side of the triangular base 5011 is in close contact with the side of the hollow hexagonal prism 203. When the entire silencer assembly 5 is not in use, the triangular base 5011 can be used to be in close contact with the contact surface to prevent the silencer assembly 5 from rolling. When the silencer assembly 5 is in use, the triangular base 5011 on the side of the long cylinder 501 is in close contact with the side of the hollow hexagonal prism 203, and the other side of the long cylinder 501 is in close contact with the limiting ring 508, which can ensure the stability of the silencer assembly 5 inside the exhaust muffler housing 2.

[0081] Specifically, the steam injection holes 505 are distributed on the side of the long cylinder 501 away from the triangular base 5011, and the distribution wide angle range of the steam injection holes 505 is not greater than 180°. When the silencer assembly 5 is installed, the triangular base 5011 on the side of the long cylinder 501 is closely attached to the side of the hollow hexagonal prism 203, which can ensure that the steam injection holes 505 are exactly facing the opposite position of the hollow hexagonal prism 203, thereby facilitating the sequential alignment of the steam injection holes 505, the through groove 2041 and the outlet of the muffler external steam guide port 3.

[0082] Specifically, a ventilation block 5041 is fixedly installed on the top of the lower sealing seat 504, one end of the spring long rod 506 is fixed to the ventilation block 5041, a plurality of air ports 5042 are arranged on the side of the ventilation block 5041, and the center of the ventilation block 5041 is arranged as a hollow column, and the air port 5042 is connected to the outside of the long cylinder 501 through the hollow column; when the sealing piston 507 is pressed downward by the impact of the gas, the spring long rod 506 is compressed, and at the same time, the gas between the sealing piston 507 and the lower sealing seat 504 will be pushed and pushed out from the air port 5042, thereby ensuring the stability of the movement of the sealing piston 507.

[0083] One end of the hollow column of the vent block 5041 is provided with a threaded opening, and a hand screw 5043 is threadedly connected through the threaded opening. When the exhaust pressure of the exhaust device is relatively low, the hand screw 5043 is removed before using the device to ensure that the air outside the long cylinder 501 is in communication with the air at the bottom of the long cylinder 501, and then the steam is discharged through the steam injection hole 505 under the condition of ensuring the energy consumption of the steam. When the exhaust pressure of the exhaust device is relatively high, the hand screw 5043 is not removed. When the spring long rod 506 is compressed, the gas between the sealing piston 507 and the lower sealing seat 504 will be compressed and the air pressure will increase. Due to the influence of the air pressure, the resistance of the sealing piston 507 to push will increase, thereby increasing the gas energy consumption during exhaust, thereby ensuring the silencing effect.

[0084] Working principle:

[0085] The silencer steam guide cavity 1, exhaust silencer housing 2, base 4 and silencer assembly 5 in the device are all independent components, which can be formed into a complete device by means of screws, bolts or snaps, and ensure the stability of the device when in use.

[0086] When the device is used, the gas pipe 104 of the muffler steam guide cavity 1 enters the cavity chamber 103, and then is introduced into the long cylinder 501 of the muffler component 5 from the corresponding internal steam guide ports 503 from the six installation ports 1031 of the cavity chamber 103. As the gas flows in, the gas first passes through the solid adsorption cotton 509 to adsorb the fixed substance. After the gas passes through the solid adsorption cotton 509, the sealing piston 507 moves downward to the sealing seat 504 under the gas pressure, and the gas is simultaneously subjected to resistance and is eliminated. Kinetic energy is consumed. At this time, the spring long rod 506 continues to be compressed. As the compression amount of the spring long rod 506 increases, the elastic potential energy accumulated in the spring long rod 506 increases, which can increase the resistance of the sealing piston 507 to the gas in the opposite direction. In this way, the energy consumption of the gas can be increased, thereby achieving a silencing effect. The gas flow rate is reduced after energy consumption and is ejected from the steam injection hole 505. Then the gas passes through the through groove 2041 and the muffler external steam guide port 3 in turn and is discharged externally. In this way, the silencing effect of the device can be achieved.

[0087] When any problem occurs in the use of the device, the locking of the device by screws, bolts or buckles can be released to separate the steam guide cavity 1 of the middle silencer, the housing 2 of the exhaust silencer, the base 4 and a part of the silencer assembly 5, and repair, clean or replace them, so as to avoid the situation where the silencer is blocked inside and the silencer is affected, thereby protecting the practical effect of the entire device.

[0088] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A composite exhaust muffler, comprising a muffler steam guide cavity (1), an exhaust muffler housing (2) mounted at the bottom of the muffler steam guide cavity (1), six muffler external steam guide ports (3) mounted on the side of the exhaust muffler housing (2), and a base (4) fixed to the bottom of the exhaust muffler housing (2) by screws, characterized in that: Six silencer components (5) are installed inside the exhaust silencer housing (2); An outer sleeve (101) is fixedly provided at the bottom of the muffler steam guide cavity (1), and four annularly evenly distributed internal threaded cylinders (102) are provided on the outer circumference of the outer sleeve (101), and the internal threaded cylinders (102) are all fixed to the bottom of the muffler steam guide cavity (1), and the top of the exhaust muffler shell (2) is inserted into the outside of the outer sleeve (101), and four internal threaded seats (201) are fixedly installed on the side of the exhaust muffler shell (2). The four internal thread seats (201) and the four internal thread cylinders (102) are in one-to-one correspondence and close contact, and the internal thread seats (201) and the internal thread cylinders (102) that are close contact with each other are threadedly connected with locking bolts (202); a hollow hexagonal column (203) is provided in the middle of the exhaust muffler housing (2); the bottom end of the hollow hexagonal column (203) is in contact with the base (4), and the top end of the hollow hexagonal column (203) is fixed to the bottom of the muffler steam guide cavity (1); A strong spring short rod (401) is fixedly mounted on the top of the base (4) and located inside the exhaust muffler housing (2); a baffle (402) is fixedly mounted on the end of the strong spring short rod (401) away from the base (4); The silencer assembly (5) comprises a long cylinder (501), the long cylinder (501) being a hollow sandwich structure and filled with sound insulation sponge at the sandwich position, one end of the long cylinder (501) being threadedly connected to an upper sealing platform (502), the top of the upper sealing platform (502) being provided with an inner steam guide port (503), the inner steam guide port (503) passing through the shell of the muffler steam guide cavity (1) and connected to the interior of the muffler steam guide cavity (1), the other end of the long cylinder (501) being threadedly connected to a lower sealing seat (504), and a plurality of holes are provided in the middle of the side surface of the long cylinder (501). A steam injection hole (505), a spring long rod (506) is fixedly installed at the top end of the lower sealing seat (504) and located inside the long cylinder (501), a sealing piston (507) is fixedly installed at one end of the spring long rod (506) away from the lower sealing seat (504), the sealing piston (507) slides along the inner wall of the long cylinder (501), a limiting ring (508) is fixedly installed in the inner middle part of the long cylinder (501), and a solid adsorption cotton (509) is arranged inside the long cylinder (501) and between the limiting ring (508) and the upper sealing platform (502); A shift collar (4021) is fixedly mounted on the top of the baffle plate (402), the inner diameter of the shift collar (4021) being twice the outer diameter of the long cylinder (501), a triangular base (5011) is fixedly mounted on the outside of the long cylinder (501), the side surface of the triangular base (5011) is in close contact with the side surface of the hollow hexagonal prism (203), the steam injection holes (505) are distributed on the side surface of the long cylinder (501) away from the triangular base (5011), and the distribution wide angle range of the steam injection holes (505) is not greater than 1 80°, a ventilation block (5041) is fixedly installed on the top of the lower sealing seat (504), one end of the spring long rod (506) is fixed to the ventilation block (5041), a plurality of air ports (5042) are arranged on the side of the ventilation block (5041), and the center of the ventilation block (5041) is arranged as a hollow column, the air port (5042) is connected to the outside of the long cylinder (501) through the hollow column, and a threaded opening is arranged at one end of the hollow column of the ventilation block (5041), and a hand screw (5043) is threadedly connected through the threaded opening.

2. A composite exhaust muffler according to claim 1, characterized in that: The muffler steam guide cavity (1) comprises a cavity chamber (103) and a steam pipe (104); the steam pipe (104) is arranged at the top of the cavity chamber (103) and communicates with the interior of the cavity chamber (103); Six installation openings (1031) are arranged inside the cavity (103), and sealing strips are arranged inside the installation openings (1031). The six installation openings (1031) are respectively connected one by one with the internal steam guide openings (503) in the six silencer components (5).

3. A composite exhaust muffler according to claim 1, characterized in that: A sealing sleeve (204) is fixedly mounted on the middle part of the inner side surface of the exhaust silencer housing (2), and six through grooves (2041) are provided on the sealing sleeve (204), and the inner sides of the six through grooves (2041) respectively correspond to the positions of the steam injection holes (505) on the six silencer components (5), and the outer sides of the six through grooves (2041) respectively correspond to the positions of the six silencer external steam guide ports (3).

4. A composite exhaust muffler according to claim 1, characterized in that: The cross-section of the muffler external steam guide port (3) is a rectangular structure, and a dustproof net (301) is fixedly installed at the outlet of the muffler external steam guide port (3).

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