873 results about "Muffler" patented technology

A compressor assembly may include a shell, a discharge fitting, a muffler, a compression mechanism, and a motor. The shell may have an opening therethrough with the discharge fitting generally extending therefrom. The muffler may be in communication with the discharge fitting and may be external to the shell. The muffler may have an inlet proximate the discharge fitting, an outlet distal from the discharge fitting, and a body portion extending therebetween. The muffler may include a valve assembly proximate the outlet. The compression mechanism may be contained within the shell and include a suction inlet and a discharge passageway. The discharge passageway may be connected to the opening in the shell for direct discharge of refrigerant from the compression mechanism to the discharge fitting. The motor may be contained within the shell and drivingly coupled to the compression mechanism.

The application discloses a punching device for motorcycle exhaust muffler pipes and particularly relates to the technical field of punching devices, which comprises a supporting frame, a clamping and punching assembly arranged on the supporting frame, the clamping and punching assembly comprising a central cylinder arranged in the supporting frame, one end of the central cylinder being provided with an adjusting circular truncated cone cylinder, and a plurality of clamping blocks being arranged on the middle part of the adjusting circular truncated cone cylinder. The clamping blocks can be synchronously contracted or expanded along the radial direction, and the arc-shaped fitting grooves on the clamping blocks and the rubber pads can stably clamp the motorcycle exhaust muffler pipes with a certain range of outer diameter differences. The punching device can solve the problem that the traditional punching device can only be adapted to single-specification pipes and the time-consuming replacement of molds, greatly improve the universality of the equipment, simultaneously punch different positions of the same section of the muffler pipe, and automatically feed the slip ring through the motor-driven screw rod, so that the clamping, angle adjustment, punching and resetting linkage operation can be completed, manual intervention is reduced, and the operation strength is reduced.

The utility model discloses a mute damping pneumatic knife which comprises a shell, an air inlet assembly installed in the shell, a moving assembly driven by high-pressure air to reciprocate, a knife head arranged at the front end of the moving assembly and moving up and down along with the moving assembly, an exhaust assembly used for guiding air to be exhausted and a damping assembly. The damping assembly comprises a buffering sleeve, a spring and a guide ring, the guide ring is clamped in the shell, the buffering sleeve and the moving assembly are assembled into a whole and are installed on the shell in a suspended mode through the guide ring, and the spring is installed between the buffering sleeve and the shell. High-pressure gas drives the motion assembly to reciprocate at a high speed to drive the cutter to perform efficient vibration cutting, vibration caused by motion of the motion assembly is effectively reduced through the damping assembly, the cutter is almost free of vibration, the cutting quality is improved, the service life of the cutter is prolonged, and the pneumatic cutter is relatively simple in structure, low in maintenance cost, high in reliability and suitable for popularization and application. And a silencer is also arranged, so that the noise during working is effectively reduced, and a better working environment is provided.

The invention discloses a preparation method of a mute tube core layer and a mute tube. The preparation method comprises the following steps: step 01, adding 15-55 parts by weight of polypropylene resin, 0.5-10 parts by weight of a coupling agent, 0.5-5 parts by weight of a lubricant, 0.05-1 part by weight of an antioxidant and 0.1-3 parts by weight of other additives into a twin-screw extruder from a main feeding port of the twin-screw extruder, and melting and mixing to form an intermediate melt; 02, 45-85 parts by weight of barium sulfate is added into a double-screw extruder through at least two side feeding ports of the double-screw extruder, the barium sulfate and the intermediate melt are subjected to melt blending, and a blended melt is formed; and step 03, extruding the blended melt by a twin-screw extruder, and sequentially passing through a melt pump and a pipeline core mold to form the pipe core of the mute pipe. According to the preparation method, the filling proportion of barium sulfate is increased to 70% or above, the material density is larger than 2.4 g / cm < 3 >, and the noise test of a drainage pipe system of the mute pipe prepared through the preparation method is smaller than 20 dB.

The invention discloses air tightness detection equipment for an automobile silencer, which comprises a base, a plurality of clamping pieces, a driving device and a transmission mechanism, and is characterized in that the base is provided with a placing station for placing a silencer body, and the clamping pieces are horizontally and slidably arranged at two sides of the top end of the base and are located at two sides of the placing station; the correspondingly matched clamping pieces form a first clamping assembly and a second clamping assembly, the driving device is installed on the base, the transmission mechanism is installed on the base, the input end of the transmission mechanism is connected with the output end of the driving device in a matched mode, and the output end of the transmission mechanism is connected with the clamping pieces in a matched mode. The device has the beneficial effects that firstly, the first clamping assembly completes clamping and positioning, and at the moment, the area, corresponding to the silencer body, of the second clamping assembly is exposed; then the second clamping assembly clamps and positions the silencer body, meanwhile, the first clamping assembly is loosened, the area which is originally shielded by the first clamping assembly is completely exposed, and airtightness detection of the whole surface of the silencer body is achieved.

An off-road vehicle includes a vehicle body frame, a cargo bed, an internal combustion engine, and an exhaust system. The cargo bed is supported by the vehicle body frame. The internal combustion engine is supported by the vehicle body frame and provided in a space under the cargo bed. The exhaust system is connected to an exhaust port of the internal combustion engine. The exhaust system includes a first exhaust pipe, a first muffler, a second exhaust pipe, and a second muffler. The first exhaust pipe is connected to the exhaust port. The first muffler is connected to the first exhaust pipe and provided in the space under the cargo bed. The second exhaust pipe is connected to the first muffler. The second muffler is connected to the second exhaust pipe and provided in the space under the cargo bed.

The invention provides a Helmholtz silencer with broadband sound absorption performance, and belongs to the technical field of silencers. Comprising a tubular neck and a cylindrical back cavity, a plurality of annular thin plates are evenly arranged and fixed on the inner wall of the cylindrical back cavity in the length direction, the distance between every two adjacent annular thin plates is larger than 0 and smaller than 3 mm, and the inner diameters of the annular thin plates are gradually reduced from the tubular neck to the interior of the cylindrical back cavity. A plurality of annular thin plates are fixed in the cylindrical back cavity, so that a gap between two adjacent annular thin plates forms a sound absorption unit, and the inner diameters of the plurality of annular thin plates are gradually reduced from the tubular neck part to the interior of the cylindrical back cavity according to index change; the sound absorption frequency band of the sound absorption device does not completely depend on the inherent frequency generated by resonance of an air column at the neck of the Helmholtz silencer, the structure is simple, the cost is low, the sound energy dissipation when sound waves enter the Helmholtz silencer can be increased, and the sound absorption device has good broadband sound absorption performance.

The utility model discloses an airflow dredging device of an ultra-silence silencer, and belongs to the technical field of airflow dredging devices. Comprising an airflow dredging channel, flange connectors are fixedly installed at the two ends of the airflow dredging channel, multiple sets of flow guide strips are arranged on the inner wall of the airflow dredging channel, an air inlet is formed in one end of the inner wall of the airflow dredging channel and is conical, and multiple sets of flow dividing holes are formed in the end of the air inlet. An air outlet is formed in the other end of the inner wall of the airflow dredging channel and is in a solid cone shape. According to the utility model, airflow can be rotated and shunted when passing through the interior of the airflow dredging channel, so that the airflow is dredged, the airflow is more uniform when entering the silencer, the probability that the airflow forms turbulent flow in the silencer is reduced, and the working efficiency of the silencer is improved.

The utility model provides a Helmholtz silencer based on a quasi-zero stiffness element, which belongs to the technical field of pipeline silencers and comprises an air cavity, a panel is mounted in the air cavity and connected with the air cavity through a vibrating diaphragm, a boss is fixedly mounted on the panel, and the vibrating diaphragm is connected with the boss. The boss is connected with one end of the supporting spring in the radial direction of the main pipeline, the other end of the supporting spring is connected with the air cavity, the two ends, in the axial direction of the main pipeline, of the boss are connected with one end of the pre-compression spring respectively, and the other end of the pre-compression spring is connected with the air cavity. The low-frequency noise in the pipeline is effectively controlled, the low-frequency noise control device has the advantages of being compact in structure, small in size and the like, and if noise of different frequencies needs to be controlled, only the compression amount of the pre-compression spring needs to be adjusted to change the overall rigidity of the structure; under the condition of the same neck area, a smaller air cavity volume can be adopted, the rigidity of each spring can be freely adjusted, and the height of the back cavity is greatly reduced.

The utility model relates to the field of pipeline cleaning, and discloses a steam blowing device which comprises an air inlet pipe connected with an air outlet of a cleaning pipeline and a silencer body arranged on the side, away from the pipeline, of the air inlet pipe, and further comprises a filtering device arranged on the side, close to the silencer body, of the air inlet pipe, the filter is used for filtering impurities in steam; the filter device comprises a mounting box arranged on the air inlet pipe, and an exhaust hole is formed in the position, connected with the air inlet pipe, of the mounting box; the sealing block is adjustably arranged in the mounting box; according to the steam exhaust device, noise generated during steam exhaust is effectively reduced, the working environment is improved, hearing health of operators is protected, waste residues in the steam are filtered, and potential safety hazards caused by direct emptying of the waste residues in the high-temperature steam are avoided. And the safety of cleaning the steam pipeline is improved.

This invention provides a muffler, a compressor, and an air conditioner. The muffler includes a muffler body having a flow chamber, a first exhaust passage, a first silencing chamber, a first exhaust port, and a first vent. The flow chamber is connected to the outside of the muffler body through the first exhaust passage, and the first silencing chamber is connected to the outside of the first exhaust port through the first exhaust port. The two ends of the first vent lead to the flow chamber and the first silencing chamber, respectively. A first valve body is located in the first silencing chamber and can open or close the first vent according to the flow rate of the fluid flowing in the first exhaust passage. According to this invention, because the first silencing chamber diverts the gaseous refrigerant flowing in the flow chamber when the exhaust pulsation is large, the gaseous refrigerant with different flow rates is automatically matched with the corresponding flow path and chamber, thus optimizing the exhaust pulsation problem. At the same time, adaptively adjusting the flow path and chamber corresponding to the gaseous refrigerant with different flow rates also achieves noise reduction for multiple frequency bands.

The embodiment provides a silencing device for a compressor, comprising a silencer and a check valve. The silencer includes a housing with a first connecting end and an internal silencing assembly. The first connecting end has an opening structure communicating with the housing cavity, and the exhaust end of the silencing assembly extends to this opening. The check valve includes a valve body with a valve core assembly and a second connecting end having a first air inlet. The second connecting end connects to and seals the first connecting end. The exhaust end of the silencing assembly is connected to the air inlet, providing a simple, compact connection that enables a smaller and lighter compressor silencer.

This utility model relates to the field of pipeline technology, specifically to a compressor venting and noise reduction pipeline and its noise reduction system. The compressor venting and noise reduction pipeline includes: an exhaust pipeline, a bend downstream of the exhaust pipeline, a branch pipeline downstream of the bend, an output pipeline downstream of the branch pipeline, and a silencer downstream of the output pipeline. The silencer includes a spiral flow guiding device. This utility model reduces the velocity of the medium flow by using the bend, branch pipeline, and silencer, consuming part of the kinetic energy of the medium flow, thereby reducing the noise generated by the medium colliding with the pipe wall during discharge and reducing the safety risks to on-site personnel.

The application discloses a novel light-weight pressure-resistant multifunctional metamaterial pipeline silencer system, which comprises an expansion section, a base section and a transition section; the two ends of the expansion section are connected with the base section through the transition section, and the inner diameter of the expansion section is larger than the outer diameter of the base section; the expansion section comprises at least one annular metamaterial base ring, the metamaterial base ring comprises a plurality of anisotropic super-structure shell units connected in sequence along the ring direction, and each anisotropic super-structure shell unit comprises a rigid support framework and a flexible support material; the rigid support framework is provided with holes, and the flexible support material is filled in the holes of the rigid support framework and between two adjacent rigid support frameworks. The application relates to the field of pipeline noise control and can effectively solve the problem of how to realize the integrated design of a pipeline system low-frequency broadband silencer system under the conditions of high pressure resistance and small size, thereby providing a solution with good application prospect for the design of pipeline systems widely used in the fields of aviation and navigation engineering and mechanical engineering.

This work vehicle is provided with: an engine 21; a muffler 22 which is disposed adjacent to the engine 21 and discharges exhaust of the engine 21 to the outside; a cooling unit 23 which cools hydraulic oil stored in a hydraulic oil tank 43 while circulating the hydraulic oil by a hydraulic pump 10; and a separation plate 53 which separates the muffler 22 and the cooling unit 23.

The utility model relates to the technical field of silencer tail pipe production, and discloses a silencer tail pipe anti-corrosion coating spraying rotating support which comprises a base, the side wall of the top of the base is fixedly connected with a splash guard, the inner wall of the splash guard penetrates through and is fixedly connected with a hose, the bottom end of the hose is fixedly connected with a spray head, and the spray head is fixedly connected with a nozzle. A driving mechanism and a positioning mechanism are arranged in the base, the driving mechanism comprises a motor, the motor is fixedly installed in the base, the output end of the motor is fixedly connected with a rotating shaft, and the outer wall of the rotating shaft is fixedly connected with a roller. According to the utility model, through the arrangement of the driving mechanism, not only can the tail pipe shell rotate slowly, but also the spray head can swing in a reciprocating manner, so that an anti-corrosion coating can be uniformly sprayed on the surface of the tail pipe shell, manual spraying is not needed, the working efficiency can be improved, and the labor intensity of workers is reduced. And the phenomenon that the coating quality is affected by instability of manual spraying can be avoided.

The utility model relates to the technical field of noise reduction of pipeline fans, in particular to a noise reduction type pipeline fan which comprises a fan body, a noise reduction barrel for eliminating noise and a dustproof mechanism for preventing dust from affecting noise reduction. The dustproof mechanism comprises a mounting frame, a limiting rod, an electrostatic rod, a protection plate and a pull rod; the mounting frame is slidably mounted on the limiting rod, and the limiting rod is fixedly connected to the protection plate; electrostatic rods are uniformly mounted on the mounting frame, and a pull rod is fixedly connected to the mounting frame and slides and penetrates through the protection plate. According to the air purifier, dust is adsorbed through the electrostatic rod with static electricity, the dust adsorption surface is enlarged, the effect of removing the dust sucked into the air is improved, the influence of the dust on the use of a silencer in the silencing barrel is avoided, the electrostatic rod can penetrate through the through hole by pulling the pull rod, the dust on the electrostatic rod can be conveniently cleaned, and the practicability of the air purifier is improved. And the dust removal effect of the electrostatic rod is guaranteed, and then the stability of the silencing effect is guaranteed.

The invention relates to the technical field of silencing devices, in particular to a folding type silencing device for an air supply and exhaust outlet. The silencer comprises a shell unit, a silencing unit and a connecting and sealing unit, the shell unit is formed by connecting at least two frame modules capable of moving relatively through a hinge mechanism. Under the action of the hinge mechanism, the frame module is switched between an unfolded state and a folded state; the silencing unit is arranged in the frame module, and correspondingly deforms or changes in angle along with switching of the frame structure between the unfolded state and the folded state. The connection sealing unit comprises flanges or quick connectors arranged at the two ends of the device and used for being connected with an air pipe system. The sealing pieces are arranged at the joints of the frame modules; when the device is in an unfolded working state, the sealing pieces can ensure the air tightness of all joints. In the unfolded state, the silencer has the silencing performance and the airflow performance which are equivalent to or even better than those of a traditional silencer, flexible combination can be conducted according to the air volume, and rapid installation and connection are achieved.

This utility model discloses a negative pressure compressor silencer made of composite sound-absorbing material, including a negative pressure fan body and a silencer pipe fixedly installed on the air inlet end of the negative pressure fan body. An air inlet channel is fixedly installed on the inner wall of the silencer pipe, and a primary noise reduction mechanism is provided on the inner wall of the air inlet channel near the pipe opening. The primary noise reduction mechanism includes an air inlet cylinder fixedly installed on the inner wall of the air inlet channel, and multiple air inlets are opened on the outer wall of the air inlet cylinder. This utility model, through the inner ring silencer cylinder, outer ring silencer cylinder, and silencer ring cylinder of the primary noise reduction mechanism forming a multi-stage sound absorption structure, utilizes the cooperation between the silencer holes and the annular cavity to allow sound waves to reflect and diffract between different cavities, effectively absorbing mid-to-high frequency noise. The coaxial and annular array distribution design of the air inlets guides the airflow to enter evenly, reducing the generation of eddy noise. The composite structure of the perforated metal cylinder and the sound insulation felt further blocks the transmission of noise, improving the broadband noise reduction effect.

The application discloses a kind of SF6 density relay comprehensive calibration instrument and calibration and measurement method, including intermediate pipeline and be located on the air pump of intermediate pipeline, the one end of the intermediate pipeline is respectively communicated with the one end of safety valve pipeline, first pipeline one end, second pipeline one end, the other end of intermediate pipeline is respectively communicated with the one end of micro water measuring pipeline and third pipeline one end, the other end of the micro water measuring pipeline is respectively communicated with the one end of inlet pipeline and purity measuring pipeline, the other end of third pipeline is respectively communicated with the other end of first pipeline and fourth pipeline one end, the other end of the fourth pipeline is respectively communicated with the other end of purity measuring pipeline, the other end of second pipeline and muffler pipeline, intermediate pipeline side is equipped with suction pipeline;The application has adopted new pneumatic circuit design, combines density relay system calibration circuit with moisture measurement circuit and purity measurement circuit together, with the characteristics such as high measurement efficiency, convenient, its loop structure is simplified, and measurement is efficient.

The utility model discloses a pneumatic silencing valve for PCTC, including silencer casing and air brake casing, the outside fixed support platform of silencer casing, the middle part rotationally connected with the main shaft of air brake casing, the rotationally connected with four driven shafts in air brake casing, every two driven shafts equidistance distribution are in the both sides of main shaft, and the air brake blade is fixed with in the outside of main shaft and driven shaft, and the end part that extends to the outside of air brake casing is fixed with crank no.1 in the main shaft and the driven shaft of being in the first, third position, and the end part that extends to the outside of air brake casing is fixed with crank no.2 in the driven shaft of being in the second, fourth position, and one side of air brake casing is provided with connecting rod no.1, connecting rod no.2 and connecting rod no.3. Air brake adopts two -way alternate open -close blade group, and five -piece blade group is driven by the main shaft, and the odd -numbered blade and even -numbered blade form reverse rotation mechanism, and the concentrated eddy current that alternately opens and shuts mode effectively avoids the traditional same -direction opening and closing, and reduces local turbulent energy loss.

The utility model relates to air conditioning system, specifically provide a refrigerant's silencer and air conditioning system, to solve the refrigerant of existing in air conditioning system operation easy to produce high frequency noise and difficult to effectively restrain, and the existing noise reduction scheme still has the problem of significant deficiency in high frequency noise control, safety, system performance and compactness of structure etc. For this purpose, a refrigerant's silencer of the utility model includes tubular shell, and the refrigerant can flow inside the tubular shell, and the tubular shell includes first stage cavity, second stage cavity and third stage cavity connected in turn, the diameter of first stage cavity is greater than the diameter of second stage cavity, and the diameter of second stage cavity is greater than the diameter of third stage cavity. By setting the diameter of three tubular structures from big to small in turn decreases, can effectively change the refrigerant flow state under the premise of not significantly increasing system resistance, realizes the graded attenuation and disturbance suppression of different frequency band noise especially high frequency noise.

The utility model relates to the technical field of vehicle parts, and provides a silencer assembly and a vehicle, the silencer assembly comprises a silencer body and an energy absorption assembly, the energy absorption assembly is arranged on the silencer body and located on the side portion of the silencer body, and the energy absorption assembly is arranged on the silencer body and located on the side portion of the silencer body at least when the vehicle is collided from the rear portion. The energy absorption assembly can bear collision impact earlier than the silencer body so as to absorb collision energy through self deformation. According to the silencer, the energy absorption assembly is arranged on the silencer, the energy absorption assembly bears collision impact before the silencer when the vehicle collides, and the collision energy is absorbed through deformation of the energy absorption assembly, so that the vehicle collision energy can be absorbed, the damage probability of the silencer body is reduced, and the maintenance cost of the vehicle is reduced.

This application provides an adaptive muffler and its control method for a variable frequency oil-free screw air compressor. The muffler includes a muffler body with an air inlet at one end and an exhaust port on the side wall. A linear drive mechanism is installed at the other end of the muffler body. A piston plate is installed inside the cavity of the muffler body, and the piston plate is rigidly connected to the output shaft of the linear drive mechanism. The linear drive mechanism is connected to a controller. When the controller detects a change in the operating frequency of the air compressor, it calculates the target position of the piston plate under the current operating condition based on the real-time collected air compressor operating frequency and exhaust temperature, combined with the transmission loss calculation formula. The controller then drives the piston plate to move to the target position through the linear drive mechanism, thereby automatically adjusting the muffler's silencing frequency band and achieving adaptive tracking and noise reduction of the air compressor's fundamental frequency. This adapts to the full operating conditions of the variable frequency air compressor.

The present application provides a muffler, comprising a cylindrical housing defining an anechoic chamber, an anechoic chamber inlet and an anechoic chamber outlet that are located at two opposite axial ends of the housing, and at least one partition plate, at least one muffling pipe, and at least one liquid discharging pipe that are located in the anechoic chamber. The at least one liquid discharging pipe is provided on the at least one partition plate and extends a certain distance along the axis of the housing on at least one side of the corresponding partition plate. Each liquid discharging pipe defines a liquid discharging channel penetrating through the corresponding partition plate. Each liquid discharging pipe is arranged in close contact with the housing or is partially formed by the housing. The position of the anechoic chamber outlet relative to the at least one liquid discharging pipe is configured so that a liquid flowing out from the at least one liquid discharging pipe can be discharged through the anechoic chamber outlet. The muffler of the present application is part of an exhaust channel of a compressor, and the liquid discharging channel provided in the anechoic chamber can meet the requirement of timely discharging a lubricating liquid from the muffler, and likewise cannot reduce the muffling effect of the anechoic chamber.

1. The name of the design product: muffler cover. 2. The use of the design product: for motorcycle muffler cover. 3. The design features of the design product: in shape. 4. The picture or photograph that best shows the design features: perspective view.

The utility model discloses a novel cylinder cover sealing structure, include: cylinder cover, its bottom end center is equipped with round recess, install rubber O type ring in round recess, and round recess is used for accommodating suction silencer and is inserted and sealed and is clamped, and the front surface of cylinder cover is equipped with the profiled arc air inlet groove, is located the top of round recess, and is communicated with round recess, and the top interval of profiled arc air inlet groove is provided with the vertical valve plate limiting board compression tight rib, and the inner chamber reinforcing rib is arranged between valve plate limiting board compression tight rib and profiled arc air inlet groove. The novel cylinder cover sealing structure, through not changing the cylinder cover appearance size, keeps the function of inlaying reinforcing rib and valve plate limiting board compression tight rib under the condition of increasing the inner chamber volume, improves high pressure exhaust flow heat dissipation, improves the starting capacity and heat exchange efficiency of compressor, changes the installation mode of the existing suction silencer and cylinder cover simultaneously, solves the noise problem of the resonance produced by the vibration of suction silencer under high speed.

The utility model discloses an exhaust silencing pipe, which relates to the technical field of pneumatics and comprises a pipe cavity main body, the inner wall of the pipe cavity main body is in threaded connection with a silencer body, and the inner wall of the silencer body is fixedly connected with first breathable cotton used for absorbing exhaust noise energy. The pipe cavity body is filled with second breathable cotton used for reducing exhaust noise. According to the utility model, a section of pipe cavity is additionally arranged on the original silencer, the ventilation cotton is filled in the pipe cavity, and the silencer is arranged at the foremost end of the pipe cavity, so that when compressed air passes through the pipe cavity, the flow rate of the compressed air can be reduced under the action of the ventilation cotton, and the flow rate of the compressed air can be reduced when the compressed air passes through the original silencer. And the exhaust noise can be reduced by 50%.

This invention provides a pump body assembly and a compressor. The pump body assembly includes a cylinder liner, a piston, and a muffler structure. The cylinder liner has an inlet and an outlet. The piston is slidably disposed within the cylinder liner to form a variable volume chamber, and the variable volume chamber is located in the sliding direction of the piston. The muffler structure is connected to the cylinder liner and has a muffler cavity. The cavity wall of the muffler cavity has a communication hole for communicating with the outlet, and the cavity wall also has a pressure relief port. When the piston is in the inlet position, the inlet communicates with the variable volume chamber; when the piston is in the outlet position, the outlet communicates with the variable volume chamber; and when the outlet pressure reaches a preset outlet pressure, the pressure relief port is opened. This invention solves the problems in the prior art where oil-containing refrigerant in the compressor severely affects the thermal efficiency of the refrigeration equipment, and where fluctuations in outlet pressure lead to an excessively high suction-to-discharge pressure ratio.

The utility model provides a high sound intensity reverberation room ventilation noise elimination channel, which is applied to the noise elimination channel technology field, and comprises a resistive noise elimination section and a reactive noise elimination section to form a composite noise elimination channel, the resistive noise elimination section comprises a sheet type silencer and a maze silencer, one end of the sheet type silencer is provided with a static pressure box group, and the other end of the sheet type silencer is provided with a static pressure box group. The other end of the labyrinth silencer is connected with a resistance silencing section, the other end of the resistance silencing section is connected with a static pressure box connecting piece, the other end of the static pressure box connecting piece is connected with a ventilation pipeline through a soft connecting piece, and the other end of the ventilation pipeline is connected with an outlet pipeline. And an anti-bird net is arranged in the outlet pipeline. According to the ventilation noise elimination channel of the high-sound-intensity reverberation chamber, the static pressure boxes are arranged at the inlet and the outlet of the composite noise elimination channel, dynamic pressure in the channel is reduced through the characteristics of the static pressure boxes, and secondary noise pollution of airflow can be reduced.