CN110556090A

CN110556090A - Ultra-high pressure steam (or gas) discharging small hole injection throttling decompression composite emptying silencer

Info

Publication number: CN110556090A
Application number: CN201910884142.1A
Authority: CN
Inventors: 潘泉方
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2019-12-10

Abstract

The invention relates to a super-high pressure steam (or gas) discharge orifice injection throttling decompression composite emptying muffler, which comprises: the primary interface injection pipe barrel is respectively connected with a { throttle injection pipe I pipe barrel, a throttle injection pipe II pipe barrel, a throttle injection pipe III pipe barrel and a throttle dispersion outer barrel in parallel and are respectively selectively arranged layer by layer } to form five-level small-hole variable-frequency diffusion noise reduction chambers, the five-level small-hole variable-frequency diffusion noise reduction chambers are formed by adopting a small-hole injection throttling and pressure reduction structure form which is respectively welded and fixed on the interface injection pipe and among each layer, and because the throttling area is small, a diffusion chamber with enough volume is arranged between 'throttling and pressure reduction and small-hole injection pipe barrel chambers' of each layer, the expansion ratio is enough, so that larger noise reduction is ensured, the primary interface injection pipe barrel is suitable for ultrahigh pressure steam or gas discharge emptying conditions, and the noise reduction (insertion loss) can reach 50-65 hu (A).

Description

ultra-high pressure steam (or gas) discharging small hole injection throttling decompression composite emptying silencer

Technical Field

The invention relates to an ultrahigh pressure steam (or gas) discharge orifice injection throttling decompression composite emptying silencer, which is a novel ultrahigh pressure steam/gas emptying discharge silencing and noise reduction device.

The high-speed airflow is ejected from the container to impact and shear the static air around the container, so that severe gas disturbance is caused near the nozzle, aerodynamic noise with high sound level is generated, and exhaust jet flow noise is formed; for example, jet noise of 140-160 dB (A) is generated by jet airplanes, rocket launching and the like, and strong exhaust jet noise is generated by boiler exhaust of a thermal power plant, various gas exhaust of a metallurgical industry blast furnace and a chemical plant, exhaust and emptying of an air compressor and the like; such noise is continuous broadband noise, with peak frequency being proportional to air flow velocity and inversely proportional to exhaust pipe diameter; when the outlet airflow velocity reaches sonic velocity, i.e., blockage, its noise acoustic power also increases with increasing injection pressure.

In order to reduce the noise of the exhaust jet flow, a volume-expanding pressure-reducing and speed-expanding type silencer, or a throttling pressure-reducing type silencer, or a small-hole injection type silencer can be adopted; when the pressure is higher, throttling depressurization can be carried out firstly, and then the small holes are used for injecting; the small hole injection type silencer utilizes the principle of small hole frequency conversion diffusion to reduce the pipe diameter of a discharge opening, and shifts the noise energy from low frequency to high frequency or ultrahigh frequency to an audio frequency range which is insensitive to the feeling of human ears; under the condition of ensuring the same exhaust volume, a plurality of small holes are used for replacing a large nozzle, so that the purpose of reducing the noise of exhaust jet flow can be achieved.

The emptying exhaust noise is also called injection noise and is a prominent pollution source; such as boiler steam discharge of a power plant, blast furnace air discharge in the metallurgical industry, and high-speed airflow discharge of the chemical industry and other industrial and mining enterprises, all belong to fluid injection noise; the noise source is characterized by high sound power for generating noise, high exhaust pressure and high airflow speed, and can not be applied to general silencers.

the jet noise is formed as follows: the high-speed gas flow of the gas ejected from the nozzle generates strong noise; such noises are commonly found in industrial production, such as the exhaust of a high-pressure steam boiler of a power plant, the exhaust and emptying of a special high-pressure container of a chemical plant, the exhaust of an air compressor and various pneumatic tools, the test run exhaust and emptying of an engine in jet aircraft and rocket manufacturing industries, and the like; the strong noise has high sound power level, wide frequency and large coverage area, and seriously pollutes the surrounding environment.

The air discharge and exhaust is a high-speed air flow ejected from a nozzle, also called as jet flow, ejected from the nozzle, and the air layer adjacent to the nozzle moves along with the high-speed air flow to be sucked, and the air flow gradually diffuses along the direction of the jet flow, and the flow speed gradually decreases.

The jet noise has obvious directivity; sound pressure levels in different directions which are the same with the nozzles are different, and the maximum direction of the sound pressure level is not in the air flow direction, but forms an included angle of 15 degrees with the air flow direction; the power of jet noise is proportional to the airflow velocity to the power of 8, and when the velocity is fixed, the power is proportional to the orifice area.

Background

Exhaust mufflers currently in use, for example, chinese patent publication nos: 85202382.0 discloses a KX-P type exhaust muffler, such as the Chinese patent publication No.: 85202382.0 discloses a KX-A type safety valve muffler, the KX-P type and KX-A type mufflers are suitable for the steam discharge and other gas discharge muffling of the boiler in the petroleum, chemical, metallurgy, textile and other industrial departments, all belong to the exhaust and emptying mufflers in the form of throttling and pressure reducing small hole injection type, although they have obvious noise reduction effect, the structure of the mufflers and in the basic structure of the preferred embodiment, the following problems and disadvantages exist in their related constitution: the number of throttling decompression stages is only 2 (namely, the number of connecting pipes and the two-stage throttling decompression pipe barrel of the outer barrel body are formed), the noise reduction amount of the designed silencer is generally 20-25 dB (A), and the total length of the silencer bodies is relatively thin (namely, the noise reduction amount is generally low, the occupied installation space position of the silencer bodies is large, and the safety of mutual balance is poor when reacting force is applied), and the like.

For example, as disclosed in the Chinese patent publication No. CN204493972U, it discloses a high-pressure high-temperature steam venting muffler and as shown in the accompanying drawings 1-2, a first-stage throttling pressure-reducing plate 3, a fifth-stage throttling pressure-reducing cylinder 9, a small-hole injection layer of a first-stage housing 10, a head 12, a bottom sealing plate 1, an air inlet pipe 5 and an inlet flange assembly 4 are formed, wherein the bottom sealing plate 1, the fifth-stage throttling pressure-reducing cylinder 9 and the small-hole injection layer of a first-stage housing 10 at the rear end of the air inlet pipe 5 are formed by a concentric sleeving structure, the head 12 is mainly formed by a concentric sleeving structure composed of 5 stages of throttling pressure-reducing cylinders 9 (equivalent to a multi-layer perforated plate or perforated pipe), a small-hole injection layer of a first-stage housing 10 and a head 12 which are connected in series and welded to a flat plate of a bottom sealing plate 1, a water-discharging connection pipe 6, an air inlet pipe 5 and an inlet flange assembly 4, has functional limitations on the discharge capacity of a support 7, a pressure p _m after a multi-stage throttling orifice plate of a reinforcing rib plate 2, 8, a plate of a perforated plate of a bottom sealing plate 1 and a pressure p 83 before a perforated plate (equivalent to a multi-stage throttling orifice plate ₁ of a perforated plate, a reinforcing plate, a plate before a perforated plate, a plate.

Disclosure of Invention

In order to solve the above problems, the technical solution adopted by the present invention to solve the technical problems is: relates to a jet throttling decompression composite emptying muffler with ultrahigh pressure steam (or gas) discharge small holes, which comprises: the tail end of the interface injection tube is respectively welded with: the pipe end plate A with the external vortex-removing noise-eliminating reducer is characterized in that: the sealing ring plate a with the external vortex-removing noise-reducing reducer A is welded and fixed with the throttling injection tube I, the other end of the throttling injection tube I is welded and fixed with the tube end plate B with the external vortex-removing noise-reducing reducer B, and an interface injection tube of an outer cavity of the throttling injection tube I is respectively welded and arranged with: the plugging ring plate b with the external vortex-removing noise-eliminating reducer, the plugging ring plate b and the throttling injection pipe II are welded and fixed, the other end of the throttling injection pipe II and the pipe end plate C with the external vortex-removing noise-eliminating reducer are welded and fixed, and an interface injection pipe of an external cavity of the throttling injection pipe II is respectively welded with: a plugging ring plate c with an external vortex-removing noise-eliminating reducing pipe, the plugging ring plate c is fixedly welded with a throttling injection pipe III, the other end of the throttling injection pipe III is fixedly welded with a pipe end plate D with an external vortex-removing noise-eliminating reducing pipe and a heat absorption displacement and safety guide rod, a front oval head with N small drain holes is welded on one side of an air inlet of an interface injection pipe of an outer cavity of the throttling injection pipe III, the front oval head is fixedly welded with a throttling spray outer cylinder, the other end of the throttling spray outer cylinder is welded with the top end of a rear oval head, the heat absorption displacement and safety guide rod of the interface injection pipe are respectively welded, a reinforcing rib plate A is welded at the outer combining part of the heat absorption displacement and safety guide rod and the rear oval head, and a reinforcing web plate with a supporting connecting plate and a reinforcing rib plate B is respectively welded at the supporting force bearing point of the throttling spray outer cylinder, and the top end of the heat absorption displacement and safety guide rod is welded with a positioning and safety flange plate with a reinforcing rib plate on the outer side on the mounting site of the muffler, and the related components are fixedly welded and integrated with the components to manufacture the muffler, so that the ultra-high pressure steam (or gas) discharge orifice injection throttling and pressure reducing composite emptying muffler is characterized in that: the invention is formed by combining a small hole injection principle and a throttling and pressure reducing emission principle through a proper and reasonable optimized structure, and the throttling layer stage number designed by the invention is five levels: the first-level throttling decompression and small-hole injection frequency-conversion diffusion noise reduction cavity, namely the throttling decompression and small-hole injection frequency-conversion diffusion noise reduction cavity with a pipe end plate A welded at the tail end, the second-level throttling decompression and small-hole injection frequency-conversion diffusion noise reduction cavity designed by further improving the noise elimination quantity on the basis of the first-level throttling decompression and small-hole injection frequency-conversion diffusion noise reduction cavity, namely the throttling decompression and small-hole injection frequency-conversion diffusion noise reduction cavity designed by further improving the noise elimination quantity on the basis of the second-level throttling decompression and small-hole injection frequency-conversion diffusion noise reduction cavity, namely the throttling injection pipe II with the plugging ring plate B and the pipe end plate C welded at the two ends respectively, the fourth-level throttling decompression and small-hole injection frequency-conversion diffusion noise reduction cavity designed by further improving the noise elimination quantity on the basis of the third-level throttling decompression and small-conversion diffusion noise reduction cavity, namely the throttling decompression and small-conversion diffusion noise reduction cavity designed by further improving the noise elimination quantity on the basis of the fifth-level throttling decompression and small-conversion diffusion noise reduction cavity The noise cavity is a throttling and spraying outer cylinder body with front and rear oval seal heads respectively welded at two ends.

The further technical scheme for realizing the technical scheme of the invention is as follows: the invention provides an ultrahigh pressure steam (or gas) discharge orifice injection throttling decompression composite emptying silencer, which aims to eliminate and avoid secondary, tertiary or quartic regenerative noise and superimposed noise formed by eddy current generated during ultrahigh pressure high-speed airflow injection in the five-level throttle decompression and orifice injection frequency conversion diffusion noise reduction cavity pipe barrel device, and simultaneously achieves the purposes of more excellent strength and rigidity of the integral structure of the finished product of the invention, and the like, and is characterized by comprising the following steps: the geometric included angle between the conical side edge of the vortex-removing noise-eliminating reducer and the end surface A of the pipe end plate is 60 degrees; the geometrical included angles between the conical side edge of the vortex-removing noise-reducing reducer and the end face of the blocking ring plate a and between the conical side edge of the vortex-removing noise-reducing reducer and the end face of the pipe end plate B are respectively 45 degrees; the geometrical included angles between the side edge of the cone of the vortex-removing noise-eliminating reducing pipe IV and the end surface of the pipe end plate C are 45 degrees respectively; the geometrical included angles between the conical side edge of the vortex-removing noise-eliminating reducing pipe and the end face of the sealing ring plate c and between the conical side edge of the vortex-removing noise-eliminating reducing pipe and the end face of the pipe end plate D are 45 degrees respectively.

The further technical scheme for realizing the technical scheme of the invention is as follows: the invention provides an ultrahigh pressure steam (or gas) discharge orifice injection throttling decompression composite emptying silencer, which is an ultrahigh pressure steam/gas discharge composite emptying silencer device, realizes the interface injection pipe inlet of a complete set product of the invention, is suitable for the steam (or gas) discharge design temperature T being less than or equal to 600 ℃, and the design pressure being more than 9.81MPa and less than or equal to 18.9MPa, adopts the frequency shift principle, namely, the orifice diameter is reduced by utilizing the orifice frequency conversion diffusion principle, the noise energy is shifted from low frequency to high frequency or ultrahigh frequency to the insensitive range of human ears, under the condition of ensuring the same exhaust volume, a plurality of orifices are used for replacing one large orifice, the purpose of reducing the steam (or gas) jet flow discharge noise can be achieved, in order to ensure smooth exhaust, the open-hole through-flow cross section of the silencer is designed to be controlled to be 1.5-2 times of the exhaust valve cross section (when the silencer is fully opened), in order to consider the problems of processing and blockage, the aperture of the small hole injection is not more than 5mm, the hole center distance is at least 6-10 times larger than the aperture, and the small hole injection is composed of hole group members arranged according to a certain geometric pitch; the muffler has enough strength and good processing quality so as to be capable of withstanding the impact of ultrahigh pressure and high speed steam (or gas), and the purpose of determining the throttling and pressure reducing stage is to control the discharge capacity of the steam (or gas) and ensure that the steam (or gas) works according to the designed flow; simultaneously used for reducing the pressure; convenience is brought to strength design and processing of a rear-stage small-hole injection expansion chamber; the invention has simple structure and convenient processing in consideration of engineering design, and respectively comprises the following components: four levels of a first-level interface injection pipe barrel device are connected in parallel and are distributed layer by layer in a grading way (pressure, temperature, specific volume and displacement) — the setting is selected respectively: the throttling injection pipe I, II, the III pipe barrel and the throttling spraying outer barrel are respectively welded and fixed on the interface injection pipe, and are formed in a small hole injection throttling and pressure reducing structure form among different levels, so that the functions of reducing pressure and reducing noise layer by layer can be achieved, a large enough expansion cavity must be arranged between throttling and pressure reducing and small hole injection levels to fully expand the gas after pressure reduction, and meanwhile, a large enough through-flow section must be arranged on the small hole injection and throttling pressure reducing levels at the rear level to reduce the pressure drop before and after small hole injection; and the < muffler > should guarantee the security while the pipeline is hot to work; when the muffler is used for the safety valve (or the power release valve), the discharge capacity, the take-off and the return seat of the safety valve are not influenced; the muffler can bear the action of high-speed impact, erosion and transient force of a working medium; the interface of the < muffler > injects the interior of the pipe barrel; the throttle injection pipe I, II, the III pipe barrel and the throttle spraying outer barrel are cleaned, small holes are smooth and have no burrs, structural components such as the throttle spraying outer barrel are made of stainless steel, and the like.

The further technical scheme for realizing the technical scheme of the invention is as follows: the invention is characterized in that the ultra-high pressure steam (or gas) discharge orifice injection throttling decompression composite emptying muffler is characterized by comprising the following components in parts by weight: the first stage is a small hole frequency conversion diffusion noise reduction cavity formed by an interface injection pipe cylinder, the first layer is a small hole frequency conversion diffusion noise reduction cavity formed by a throttling injection pipe I cylinder, the second layer is a small hole frequency conversion diffusion noise reduction cavity formed by a throttling injection pipe II cylinder, the third layer is a small hole frequency conversion diffusion noise reduction cavity formed by a throttling injection pipe III cylinder, and the fourth layer is a small hole frequency conversion diffusion noise reduction cavity formed by a throttling injection outer cylinder, wherein the four layers are in parallel connection and distributed layer by layer in a grading way (pressure, temperature, specific volume and discharge capacity) and are respectively arranged in a small hole injection throttling and pressure reduction structure mode which is respectively welded and fixed on the interface injection pipe and among layers, and the sound wave of ultrahigh pressure steam (or gas) enters one diffusion noise reduction cavity from the interface injection pipe and then is injected into the other diffusion noise reduction cavity until the throttling injection outer cylinder and the front injection outer cylinder are injected, The diffusion noise reduction cavity formed by the rear oval end socket is emptied to the outside, and due to the small throttle area, a diffusion cavity with enough large volume is arranged between the throttle decompression cavity and the small-hole injection pipe barrel cavity of each level, so that the expansion ratio is enough, larger noise reduction amount is ensured, the expansion pipe is suitable for the ultrahigh pressure steam or gas discharge emptying condition, and the noise reduction amount (insertion loss) can reach 50-65 dB (A).

The further technical scheme for realizing the technical scheme of the invention is as follows: the invention provides an ultrahigh pressure steam (or gas) discharge orifice injection throttling decompression composite emptying muffler, which aims to solve the defect that a drain pipe with the diameter of 25 multiplied by L (200 mm) is adopted in the prior art, and because the outlet caliber of a single pipe orifice of the muffler is larger and the exhaust is concentrated in a drain pipe for jet flow emptying, the muffler generates larger regenerative jet flow noise and the like during draining, and the muffler is a finished product, and is characterized in that the muffler comprises the following components: the tail end part of the front elliptic end socket on one side of the set interface injection pipe is annularly and uniformly provided with N drainage small holes, the aperture of each drainage small hole is the same as that of a small hole on the throttling and spraying outer cylinder, and the number of the drainage small holes is designed and determined according to the technical requirement of the discharge capacity of a silencer; meanwhile, in order to realize the complete set product- < muffler > of the invention, for example, the safety of the pipeline in the hot working is ensured, and the < muffler > used for the safety valve (or the power release valve) should not influence the safety reliability of the discharge capacity, take-off, return seat and the like of the safety valve, and the invention is further characterized in that as shown in the attached figure 1, the top end part of the rear oval end socket on the throttling and spraying outer cylinder body is respectively welded with an interface injection pipe for absorbing heat displacement and a safety guide rod, and the top end part of the absorbing heat displacement and the safety guide rod is welded on the < muffler > installation site: the outer side of the displacement positioning and safety flange plate is provided with a reinforcing rib plate C, and the H value of the net spacing of the designed safe and reliable displacement stroke is enough larger than the H value of the net spacing of the safe and reliable displacement stroke according to the technical requirements of the complete set product and the actual requirements of the installation site (namely, according to the engineering working condition requirements of the maximum values of horizontal displacement and upward displacement of the interface injection pipe absorption thermal displacement, respectively): maximum upward (or axial) displacement while ensuring that the clearance margin for horizontal (or radial) displacement is sufficiently large, etc.

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a front view of a kit according to an embodiment of the present invention.

FIG. 2 is a rear view of a kit according to an embodiment of the present invention.

FIG. 3 is a top view of a kit according to an embodiment of the present invention.

FIG. 4 is a bottom plan view of a kit according to an embodiment of the present invention.

FIG. 5 is a left side view of a kit according to an embodiment of the present invention.

FIG. 6 is a right side view of a kit according to an embodiment of the present invention.

FIG. 7 is an enlarged cross-sectional view taken along line A-A of FIG. 1 of a kit according to an embodiment of the present invention.

FIG. 8 is an enlarged cross-sectional view taken in the plane m-m of FIG. 1 of a kit according to an embodiment of the invention.

FIG. 9 is an enlarged view of the embodiment of the present invention taken along line K of FIG. 2.

In fig. 5: n hydrophobic pores.

In fig. 8: 101. an interface injection tube; 102. a tube end plate A; 103. eliminating a vortex reducing pipe; 201. a throttling injection pipe I; 202. a ring plate a is blocked; 203. a tube end plate B; 204. a vortex-removing noise-eliminating reducer II; 205. a vortex-removing noise-eliminating reducer pipe; 301. a throttling injection pipe II; 302. a blocking ring plate b; 303. a tube end plate C; 304. a vortex-removing noise-eliminating reducing pipe; 305. a vortex-removing noise-eliminating reducer; 401. a throttling injection pipe III; 402. a blocking ring plate c; 403. a tube end plate D; 404. reducing pipe with vortex and noise eliminating; 405. a vortex-removing noise-eliminating reducing pipe; 501. throttling and spraying the outer cylinder; 502. a front oval head; 503. a rear oval end socket; 504. reinforcing rib plate A; 505. absorbing thermal displacement and safety guide rods; 601. a support connection plate; 602. a reinforcing rib plate B; 603. a reinforcing web; 701. positioning and safety flange; 702. and reinforcing plate C.

In fig. 9: 710. positioning and safety flange (welding on installation site); 702. and (4) reinforcing plate C (welding on the installation site).

In the embodiment shown in fig. 5, 8 and 9, the ultra-high pressure steam (or gas) discharge orifice injection throttling decompression composite emptying muffler provided by the invention comprises: the tail end of the interface injection tube (101) is respectively welded with: the pipe end plate A (102) with the external vortex-removing noise-eliminating reducer (103) is provided with an interface injection pipe (101) which is welded with: the injection nozzle comprises a blocking ring plate a (202) with an external vortex-removing noise-reducing reducer II (204), a blocking ring plate a (202) and a throttling injection tube I (201) which are welded and fixed, the other end of the throttling injection tube I (201) and a tube end plate B (203) with an external vortex-removing noise-reducing reducer II (205) which are welded and fixed, and an interface injection tube (101) of an outer cavity of the throttling injection tube I (201) is respectively welded and provided with: the sealing ring plate b (302) with the external vortex-removing noise-reducing reducer (304), the sealing ring plate b (302) and the throttling injection pipe II (301) are welded and fixed, the other end of the throttling injection pipe II (301) and the pipe end plate C (303) with the external vortex-removing noise-reducing reducer (305) are welded and fixed, and the interface injection pipe (101) of the external cavity of the throttling injection pipe II (301) is respectively welded and provided with: a blocking ring plate c (402) with an external vortex-removing noise-reducing pipe (404), a blocking ring plate c (402) and a throttling injection pipe III (401) are welded and fixed, the other end of the throttling injection pipe III (401) and a pipe end plate D (403) with an external vortex-removing noise-reducing pipe (405) are welded and fixed with a heat-absorbing displacement and safety guide rod (505), a front oval end plate (502) with N hydrophobic small holes (506) is welded on one side of an air inlet of an interface injection pipe (101) of an outer cavity of the throttling injection pipe III (401), the front oval end plate (502) and a throttling and spraying outer cylinder (501) are welded and fixed, the top end of a rear oval end plate (503) welded on the other end of the throttling and spraying outer cylinder (501) is welded, the interface injection pipe (101) is respectively welded with a heat-absorbing displacement and safety guide rod (505), and the heat-absorbing displacement and safety guide rod (505) and the outer side of the rear oval end plate (503) are combined and welded with a reinforcing rib plate (504) And on the throttle spraying outer cylinder body (501) installation supporting stress point, respectively welding a reinforcing web plate (603) with a supporting connecting plate (601) and a reinforcing rib plate B (602), and welding a positioning and safety flange (701) with a reinforcing rib plate C (702) at the outer side at the top end of a heat absorption displacement and safety guide rod (505) on a silencer installation site, wherein all the related components are firmly welded and fixed and integrally manufactured with the components, and the ultrahigh pressure steam (or gas) discharge small hole injection throttling and pressure reducing composite emptying silencer is characterized in that: the invention is formed by combining a small hole injection principle and a throttling and pressure reducing emission principle through a proper and reasonable optimized structure, and the throttling layer stage number designed by the invention is five levels: the first-level throttling decompression and small-hole injection frequency-conversion diffusion noise-reduction cavity, namely the interface injection tube (101) with the tube end plate A (102) welded at the tail end, the second-level throttling decompression and small-hole injection frequency-conversion diffusion noise-reduction cavity designed by further improving the noise-reduction quantity on the basis of the first-level throttling decompression and small-hole injection frequency-conversion diffusion noise-reduction cavity, namely the throttling injection tube I (201), is respectively welded with a blocking ring plate a (202) and a tube end plate B (203) at two ends, the third-level throttling decompression and small-hole injection frequency-conversion diffusion noise-reduction cavity designed by further improving the noise-reduction quantity on the basis of the second-level throttling decompression and small-hole injection frequency-conversion diffusion noise-reduction cavity, namely the throttling decompression and small-conversion diffusion noise-reduction cavity, namely the throttling injection tube II (301), is respectively welded with a blocking ring plate B (302) and a tube end plate C (303) at two ends, and the fourth-level throttling decompression and small-injection frequency-conversion and small-conversion diffusion noise-reduction cavity, namely the throttling injection tube III (401) designed, The fifth level is a throttling decompression and small hole injection frequency conversion diffusion noise reduction cavity designed on the basis of the fourth level, namely a throttling spraying outer cylinder body (501) with front and rear oval end sockets (502 and 503) respectively welded at two ends.

In a further embodiment shown in fig. 8, the invention relates to an ultrahigh pressure steam (or gas) discharging orifice injection throttling and pressure reducing composite emptying muffler, which is characterized in that in order to eliminate and avoid secondary, tertiary or quaternary regenerative noise and superimposed noise generated by vortexes generated during the injection of ultrahigh pressure high-speed air flow in the five-level throttle pressure reducing and orifice injection frequency-conversion diffusion noise reduction cavity barrel device, and simultaneously achieve the purpose that the overall structure of the complete set product of the invention has more excellent strength and rigidity, and the like, the muffler comprises: the geometric included angle between the side edge of the cone of the vortex-removing noise-eliminating reducer (103) and the end face of the pipe end plate A (102) is 60 degrees; the geometrical included angles between the conical side edge of the vortex-removing noise-reducing reducer (204) and the end face of the blocking ring plate a (202) and between the conical side edge of the vortex-removing noise-reducing reducer (205) and the end face of the pipe end plate B (203) are respectively 45 degrees; the geometrical included angles between the conical side edge of the vortex-removing noise-eliminating reducing pipe (304) and the end face of the blocking ring plate (302) and between the conical side edge of the vortex-removing noise-eliminating reducing pipe (305) and the end face of the pipe end plate C (303) are respectively 45 degrees; the geometrical included angles between the conical side edge of the vortex-removing noise-reducing pipe (404) and the end face of the sealing ring plate c (402) and between the conical side edge of the vortex-removing noise-reducing pipe (405) and the end face of the pipe end plate D (403) are 45 degrees respectively.

In a further embodiment shown in fig. 8, the invention relates to an ultrahigh pressure steam (or gas) discharge orifice injection throttling decompression composite emptying silencer, which is an ultrahigh pressure steam/gas discharge composite emptying silencer, and realizes an interface injection pipe (101) inlet of a complete set product of the invention, namely < silencer >, and is suitable for the design temperature T of the steam (or gas) to be less than or equal to 600 ℃ and the design pressure 9.81MPa to be less than or equal to 18.9MPa, the device adopts a frequency shift principle, namely, the principle of orifice frequency conversion diffusion is utilized to reduce the pipe diameter of an exhaust orifice, noise energy is shifted from low frequency to high frequency or ultrahigh frequency to a range insensitive to human ears, under the condition of ensuring the same exhaust amount, a plurality of small orifices are used for replacing a large orifice, so that the purpose of reducing the steam (or gas) jet flow discharge noise can be achieved, in order to ensure smooth exhaust, the design of the flow cross section of the orifice of the silencer is controlled to be 1.5-2 times of the cross section of an exhaust valve (when the silencer is fully opened), in order to consider the problems of processing and blockage, the aperture of the small hole injection is not more than 5mm, the hole center distance is at least 6-10 times larger than the aperture, and the small hole injection is composed of hole group members arranged according to a certain geometric pitch; the muffler has enough strength and good processing quality so as to be capable of withstanding the impact of ultrahigh pressure and high speed steam (or gas), and the purpose of determining the throttling and pressure reducing stage is to control the discharge capacity of the steam (or gas) and ensure that the steam (or gas) works according to the designed flow; simultaneously used for reducing the pressure; convenience is brought to strength design and processing of a rear-stage small-hole injection expansion chamber; the invention has simple structure and convenient processing in consideration of engineering design, and respectively comprises the following components: four levels of pipe barrels of a first-level interface injection pipe (101) are connected in parallel and are distributed in a grading manner layer by layer (pressure, temperature, specific volume and displacement), and the setting is selected respectively: the throttling injection pipes I, II and III (201, 301 and 401) pipe barrels and the throttling and spraying outer barrel body (501) pipe barrel are respectively welded and fixed on the interface injection pipe (101) and formed in a structure form of small hole injection throttling and pressure reducing between each layer of stages, so that the functions of reducing pressure and reducing noise step by step layer can be achieved, a large enough expansion cavity must be arranged between the throttling and pressure reducing and small hole injection stages to fully expand the gas after pressure reduction, and meanwhile, the small hole injection and throttling and pressure reducing stages at the rear stage must be provided with large enough through-flow sections to reduce the pressure reduction before and after small hole injection; and the < muffler > should guarantee the security while the pipeline is hot to work; when the muffler is used for the safety valve (or the power release valve), the discharge capacity, the take-off and the return seat of the safety valve are not influenced; the muffler can bear the action of high-speed impact, erosion and transient force of a working medium; an interface injection tube (101) of a < muffler > inside the tube barrel; the throttle injection pipes I, II and III (201, 301 and 401) pipe barrels and the throttle spraying outer barrel body (501) pipe barrels are cleaned, small holes are smooth and have no burrs, structural members such as the throttle spraying outer barrel body (501) are made of stainless steel, and the like.

In a further embodiment shown in fig. 8, the invention is realized by adopting a super-high pressure steam (or gas) discharge orifice injection throttling decompression composite emptying muffler, which comprises the following steps: the first stage is a small hole frequency conversion diffusion noise reduction cavity formed by a barrel of an interface injection pipe (101), the first layer is a small hole frequency conversion diffusion noise reduction cavity formed by a barrel of a throttling injection pipe I (201), the second layer is a small hole frequency conversion diffusion noise reduction cavity formed by a barrel of a throttling injection pipe II (301), the third layer is a small hole frequency conversion diffusion noise reduction cavity formed by a barrel of a throttling injection pipe III (401), the fourth layer is a small hole frequency conversion diffusion noise reduction cavity formed by a barrel of a throttling injection outer barrel (501), the four layers are connected in parallel and are distributed layer by layer in a grading manner, pressure, temperature, specific volume and discharge are respectively selected and arranged, the structure is formed by small hole throttling and pressure reduction structures which are respectively welded and fixed on the interface injection pipe (101) and are arranged between the stages, and sound waves of ultrahigh pressure steam (or gas) enter one diffusion noise reduction cavity from the interface injection pipe (101) and are injected into the other diffusion noise reduction cavity, The expansion ratio is large enough because the throttle area is small and a diffusion cavity with enough volume is arranged between the throttle decompression and small hole injection barrel device cavities of each level, so that large noise reduction amount is ensured, the jet nozzle is suitable for ultrahigh pressure steam or gas discharge and discharge conditions, and the noise reduction amount (insertion loss) can reach 50-65 dB (A).

In a further embodiment shown in fig. 5, 8 and 9, the invention relates to an ultrahigh pressure steam (or gas) discharge orifice injection throttling decompression composite emptying muffler, which is a kit product for solving the defect that when a steam trap pipe with a diameter of 25 × L ═ 200(mm) is used conventionally, because the outlet caliber of a single pipe orifice of the steam trap pipe is large and the steam trap pipe is concentrated in a steam trap for emptying, large regeneration jet noise is generated when the steam trap pipe is drained, and the like, and is characterized in that the ultrahigh pressure steam (or gas) discharge orifice injection throttling decompression composite emptying muffler comprises: n small drainage holes (506) are annularly and uniformly distributed at the position of the tail end of the front elliptic seal head (502) on one side of the interface injection pipe (101), the aperture of each small drainage hole (506) is the same as that of a small hole on the throttling and spraying outer cylinder body (501), and the number of the small drainage holes (506) is designed and determined according to the technical requirement of the discharge capacity of a silencer; meanwhile, in order to realize the complete set product- < muffler >, for example, the safety of the pipeline in the hot working is ensured, and the safety reliability of the discharge capacity, the take-off and the return seat and the like of the safety valve (or the power release valve) is not influenced by the < muffler > used by the safety valve, the invention is further characterized in that as shown in the attached drawing 1, the top end part of the rear oval end socket (503) on the throttling and spraying outer cylinder (501) is respectively welded with an interface injection pipe (101) for absorbing heat displacement and a safety guide rod (505), and the top end part of the absorbing heat displacement and the safety guide rod (505) is welded on the < muffler > installation site: the outer side of the displacement positioning and safety flange plate (701) is provided with a reinforcing rib plate C (702), and the heat absorption displacement and safety guide rod (505) and the positioning and safety flange plate (701) are arranged between the flange plate and the flange plate, according to the technical requirements of the invented finished product and the actual requirements of the installation site [ namely, according to the heat absorption displacement of the interface injection pipe (101): engineering requirements for maximum values of horizontal and upward displacement ], the design is made with a safe and reliable displacement stroke whose H value of the net spacing should be sufficiently greater than: a maximum value of the upward displacement (or axial displacement) while ensuring a sufficient margin of clearance for the horizontal displacement (or radial displacement), and the like.

In a further embodiment shown in fig. 5, 8 and 9, in the ultra-high pressure steam (or gas) discharge small hole injection throttling decompression composite emptying silencer device of the invention,

In one embodiment: design meter for ultra-high pressure (gas) discharge orifice jet throttling decompression composite emptying silencer

A certain second embodiment: design meter for ultra-high pressure [ steam ] discharge small hole injection throttling decompression composite emptying silencer

A third embodiment: design meter for ultra-high pressure [ steam ] discharge small hole injection throttling decompression composite emptying silencer

Claims

1. The invention relates to a jet throttling decompression composite emptying muffler with a small ultrahigh pressure steam (or gas) discharge hole, which is characterized by comprising: the tail end of the interface injection tube (101) is respectively welded with: the pipe end plate A (102) with the external vortex-removing noise-eliminating reducer (103) is provided with an interface injection pipe (101) which is welded with: the injection nozzle comprises a blocking ring plate a (202) with an external vortex-removing noise-reducing reducer II (204), a blocking ring plate a (202) and a throttling injection tube I (201) which are welded and fixed, the other end of the throttling injection tube I (201) and a tube end plate B (203) with an external vortex-removing noise-reducing reducer II (205) which are welded and fixed, and an interface injection tube (101) of an outer cavity of the throttling injection tube I (201) is respectively welded and provided with: the sealing ring plate b (302) with the external vortex-removing noise-reducing reducer (304), the sealing ring plate b (302) and the throttling injection pipe II (301) are welded and fixed, the other end of the throttling injection pipe II (301) and the pipe end plate C (303) with the external vortex-removing noise-reducing reducer (305) are welded and fixed, and the interface injection pipe (101) of the external cavity of the throttling injection pipe II (301) is respectively welded and provided with: a blocking ring plate c (402) with an external vortex-removing noise-reducing pipe (404), a blocking ring plate c (402) and a throttling injection pipe III (401) are welded and fixed, the other end of the throttling injection pipe III (401) and a pipe end plate D (403) with an external vortex-removing noise-reducing pipe (405) are welded and fixed with a heat-absorbing displacement and safety guide rod (505), a front oval end plate (502) with N hydrophobic small holes (506) is welded on one side of an air inlet of an interface injection pipe (101) of an outer cavity of the throttling injection pipe III (401), the front oval end plate (502) and a throttling and spraying outer cylinder (501) are welded and fixed, the top end of a rear oval end plate (503) welded on the other end of the throttling and spraying outer cylinder (501) is welded, the interface injection pipe (101) is respectively welded with a heat-absorbing displacement and safety guide rod (505), and the heat-absorbing displacement and safety guide rod (505) and the outer side of the rear oval end plate (503) are combined and welded with a reinforcing rib plate (504) And on the throttle spraying outer cylinder body (501) installation supporting stress point, respectively welding a reinforcing web plate (603) with a supporting connecting plate (601) and a reinforcing rib plate B (602), and welding a positioning and safety flange (701) with a reinforcing rib plate C (702) at the outer side at the top end of a heat absorption displacement and safety guide rod (505) on a silencer installation site, wherein all the related components are firmly welded and fixed and integrally manufactured with the components, and the ultrahigh pressure steam (or gas) discharge small hole injection throttling and pressure reducing composite emptying silencer is characterized in that: the invention is formed by combining a small hole injection principle and a throttling and pressure reducing emission principle through a proper and reasonable optimized structure, and the throttling layer stage number designed by the invention is five levels: the first-level throttling decompression and small-hole injection frequency-conversion diffusion noise-reduction cavity, namely the interface injection tube (101) with the tube end plate A (102) welded at the tail end, the second-level throttling decompression and small-hole injection frequency-conversion diffusion noise-reduction cavity designed by further improving the noise-reduction quantity on the basis of the first-level throttling decompression and small-hole injection frequency-conversion diffusion noise-reduction cavity, namely the throttling injection tube I (201), is respectively welded with a blocking ring plate a (202) and a tube end plate B (203) at two ends, the third-level throttling decompression and small-hole injection frequency-conversion diffusion noise-reduction cavity designed by further improving the noise-reduction quantity on the basis of the second-level throttling decompression and small-hole injection frequency-conversion diffusion noise-reduction cavity, namely the throttling decompression and small-conversion diffusion noise-reduction cavity, namely the throttling injection tube II (301), is respectively welded with a blocking ring plate B (302) and a tube end plate C (303) at two ends, and the fourth-level throttling decompression and small-injection frequency-conversion and small-conversion diffusion noise-reduction cavity, namely the throttling injection tube III (401) designed, The fifth level is a throttling decompression and small hole injection frequency conversion diffusion noise reduction cavity designed on the basis of the fourth level, namely a throttling spraying outer cylinder body (501) with front and rear oval end sockets (502 and 503) respectively welded at two ends.

2. The invention relates to an ultrahigh pressure steam (or gas) discharge orifice injection throttling and pressure reducing composite emptying muffler, which is arranged according to claim 1, and is used for eliminating and avoiding secondary, tertiary or quaternary regenerative noise and superimposed noise formed by eddy current generated during ultrahigh pressure high-speed airflow injection in five levels of throttle pressure reducing and orifice injection frequency conversion diffusion noise reduction cavity pipe barrel devices, and simultaneously achieving the purposes of more excellent strength and rigidity of the integral structure of the finished product of the invention, and the like, and is characterized by comprising the following steps: the geometric included angle between the side edge of the cone of the vortex-removing noise-eliminating reducer (103) and the end face of the pipe end plate A (102) is 60 degrees; the geometrical included angles between the conical side edge of the vortex-removing noise-reducing reducer (204) and the end face of the blocking ring plate a (202) and between the conical side edge of the vortex-removing noise-reducing reducer (205) and the end face of the pipe end plate B (203) are respectively 45 degrees; the geometrical included angles between the conical side edge of the vortex-removing noise-eliminating reducing pipe (304) and the end face of the blocking ring plate (302) and between the conical side edge of the vortex-removing noise-eliminating reducing pipe (305) and the end face of the pipe end plate C (303) are respectively 45 degrees; the geometrical included angles between the conical side edge of the vortex-removing noise-reducing pipe (404) and the end face of the sealing ring plate c (402) and between the conical side edge of the vortex-removing noise-reducing pipe (405) and the end face of the pipe end plate D (403) are 45 degrees respectively.

3. The invention relates to an ultrahigh pressure steam (or gas) discharge orifice injection throttling decompression composite emptying silencer according to claims 1 and 2, which is an ultrahigh pressure steam/gas discharge composite emptying silencer, realizes the inlet of an interface injection pipe (101) of a complete set product of the invention, is suitable for the design temperature T of steam (or gas) to be less than or equal to 600 ℃ and the design pressure P to be less than or equal to 18.9MPa, adopts a frequency shift principle, namely, utilizes the principle of orifice frequency conversion diffusion to reduce the diameter of an exhaust orifice, shifts noise energy from low frequency to high frequency or ultrahigh frequency to a range insensitive to human ears, can achieve the purpose of reducing the exhaust noise of steam (or gas) jet flow under the condition of ensuring the same exhaust quantity by replacing a large orifice with a plurality of small orifices, and controls the open orifice through-flow section of the silencer to be 1.5 to 2 times of the section of an exhaust valve (when the exhaust valve is fully opened), in order to consider the problems of processing and blockage, the aperture of the small hole injection is not more than 5mm, the hole center distance is at least 6-10 times larger than the aperture, and the small hole injection is composed of hole group members arranged according to a certain geometric pitch; the muffler has enough strength and good processing quality so as to be capable of withstanding the impact of ultrahigh pressure and high speed steam (or gas), and the purpose of determining the throttling and pressure reducing stage is to control the discharge capacity of the steam (or gas) and ensure that the steam (or gas) works according to the designed flow; simultaneously used for reducing the pressure; convenience is brought to strength design and processing of a rear-stage small-hole injection expansion chamber; in order to consider simple structure and convenient processing in engineering design, the invention is respectively distributed in four levels of (pressure, temperature, specific volume and displacement) layer by layer in parallel by four levels of (a first-level interface injection pipe (101) pipe barrel devices [ + ] in a grading way, and the setting is respectively selected: the throttling injection pipes I, II, III (201, 301 and 401) pipe barrels and the throttling and spraying outer barrel body (501) pipe barrels are respectively welded and fixed on the interface injection pipe (101) and formed in a structure form of small hole injection throttling and pressure reducing between each level, so that the functions of reducing pressure and reducing noise step by step layer by layer can be achieved, a large enough expansion cavity must be arranged between the throttling and pressure reducing and small hole injection levels to fully expand the gas after pressure reduction, and meanwhile, the small hole injection and throttling and pressure reducing levels at the rear level must be provided with large enough through flow sections to reduce the pressure reduction before and after the small hole injection; and the < muffler > should guarantee the security while the pipeline is hot to work; when the muffler is used for the safety valve (or the power release valve), the discharge capacity, the take-off and the return seat of the safety valve are not influenced; the muffler can bear the action of high-speed impact, erosion and transient force of a working medium; an interface injection tube (101) of a < muffler > inside the tube barrel; the throttle injection pipes I, II and III (201, 301 and 401) pipe barrels and the throttle spraying outer barrel body (501) pipe barrels are cleaned, small holes are smooth and have no burrs, structural members such as the throttle spraying outer barrel body (501) are made of stainless steel, and the like.

4. The invention is realized by adopting the ultra-high pressure steam (or gas) discharge orifice injection throttling decompression composite emptying muffler provided according to the claims 1, 2 and 3, and is characterized by comprising the following components in percentage by weight: the first stage is a small hole frequency conversion diffusion noise reduction cavity formed by a barrel of an interface injection pipe (101), the first layer is a small hole frequency conversion diffusion noise reduction cavity formed by a barrel of a throttling injection pipe I (201), the second layer is a small hole frequency conversion diffusion noise reduction cavity formed by a barrel of a throttling injection pipe II (301), the third layer is a small hole frequency conversion diffusion noise reduction cavity formed by a barrel of a throttling injection pipe III (401), the fourth layer is a small hole frequency conversion diffusion noise reduction cavity formed by a throttling injection outer barrel (501), the four layers are connected in parallel and are distributed layer by layer in a grading manner (pressure, temperature, specific volume and discharge capacity) and are formed by adopting a small hole throttling and pressure reduction structure form which is respectively welded and fixed on the interface injection pipe (101) and among the layers, and sound waves of ultrahigh pressure steam (or gas) enter one diffusion noise reduction cavity from the interface injection pipe (101) and are injected into the other diffusion noise reduction cavity, The expansion ratio is large enough because the throttle area is small and a diffusion cavity with enough volume is arranged between the throttle decompression and small hole injection barrel device cavities of each level, so that large noise reduction amount is ensured, the jet nozzle is suitable for ultrahigh pressure steam or gas discharge and discharge conditions, and the noise reduction amount (insertion loss) can reach 50-65 dB (A).

5. The invention relates to an ultrahigh pressure steam (or gas) discharge orifice injection throttling decompression composite emptying muffler, which is set according to claims 1, 2, 3 and 4, and aims to solve the defect that a steam trap with the diameter of 25 x L (mm) is traditionally adopted at present, and because the outlet caliber of a single nozzle of the steam trap is larger and the steam trap is concentrated in a steam trap for emptying, the steam trap can generate larger regenerative jet noise and the like when in dewatering, the invention is a kit product, which is characterized by comprising the following components: n small drainage holes (506) are annularly and uniformly distributed at the position of the tail end of the front elliptic seal head (502) on one side of the interface injection pipe (101), the aperture of each small drainage hole (506) is the same as that of a small hole on the throttling and spraying outer cylinder body (501), and the number of the small drainage holes (506) is designed and determined according to the technical requirements of the discharge capacity of the silencer; meanwhile, in order to realize the complete set product- < muffler >, for example, the safety of the pipeline in the hot working is ensured, and the safety reliability of the discharge capacity, the take-off and the return seat and the like of the safety valve (or a power release valve) should not be influenced, and the invention is further characterized in that, as shown in fig. 1, the top end part of the rear oval end socket (503) on the throttling and spraying outer cylinder (501) is welded with the interface injection pipe (101) for absorbing heat displacement and the safety guide rod (505), the top end part of the absorbing heat displacement and the safety guide rod (505) is welded on the installation site of the < muffler): the outer side of the displacement positioning and safety flange plate (701) is provided with a reinforcing rib plate C (702), and the H value of the net distance of the designed safe and reliable displacement travel is enough larger than that of the H value of the net distance of the H value according to the technical requirements of the finished product and the actual requirements of the installation site (namely the engineering working condition requirements of the maximum values of horizontal displacement and upward displacement of the interface injection pipe (101)) between the positioning and safety flange plate (701) and the thermal displacement absorption and safety guide rod (505) of the invention, wherein the H value of the net distance of the H value is respectively greater than that of the H value of the: a maximum value of the upward displacement (or axial displacement) while ensuring a sufficient margin of clearance for the horizontal displacement (or radial displacement), and the like.