CN113464504B - Jet type infrared camouflage prevention protection exhaust system - Google Patents
Jet type infrared camouflage prevention protection exhaust system Download PDFInfo
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- CN113464504B CN113464504B CN202110872911.3A CN202110872911A CN113464504B CN 113464504 B CN113464504 B CN 113464504B CN 202110872911 A CN202110872911 A CN 202110872911A CN 113464504 B CN113464504 B CN 113464504B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/46—Arrangements of nozzles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/05—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of air, e.g. by mixing exhaust with air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
- F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
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- Mechanical Engineering (AREA)
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Abstract
The invention relates to the field of engineering camouflage protection and discloses a jet type infrared camouflage prevention protection exhaust system which comprises a power equipment linkage device, and a flue gas processor, a dust remover, a fan, an exhaust pipeline, a first wave-absorbing elbow, an engineering external exhaust pipeline and an air nozzle which are sequentially connected; the power equipment linkage device is connected with the fan; the air nozzle comprises an exhaust nozzle and an infrared protection shielding cover; the exhaust nozzle is connected with the external exhaust pipeline of the engineering, the infrared protection shielding cover is sleeved on the periphery of the exhaust nozzle, the infrared protection shielding cover extends to the outer end of the air nozzle of the exhaust nozzle, the infrared protection shielding cover has a distance between the shielding ring, the flow guide ring and the air nozzle of the exhaust nozzle, and the exhaust nozzle and the infrared protection shielding cover are obliquely and downwards arranged. The beneficial effects are that: the problems of infrared exposure and black smoke exposure, shock wave impact resistance improvement and the like in the exhaust, smoke exhaust or exhaust heat dissipation of the existing military engineering and military fuel power equipment can be solved.
Description
Technical Field
The invention relates to the field of engineering camouflage protection, in particular to a jet type infrared camouflage preventing protection exhaust system.
Background
During operation of military engineering, civil air defense engineering, military fuel power equipment and the like, ventilation and exhaust are needed, the exhaust temperature is usually higher than the ambient temperature around a jet port, and the ventilation and exhaust become a main infrared exposure sign of the engineering and the equipment. Particularly, the exhaust temperature of exhaust smoke of fuel generators, power stations, military transportation vehicles and the like during use can be hundreds of degrees centigrade higher than the ambient temperature, which is far greater than the allowable value of infrared camouflage prevention temperature difference, and the exhaust temperature is a main sign for reconnaissance and capture of enemies and becomes a fatal point for the attack of the enemies. Meanwhile, smoke discharged by the fuel oil engine and the generator at the initial starting operation stage is black, blue, grey or white smoke, large-area smoke is often diffused nearby a smoke outlet when the smoke is not processed, the visible light exposure symptoms are formed, especially, the smoke discharged by an underground power station has great influence on the work and life of watchmen and nearby residents, the smoke discharge does not meet the current national green environmental protection requirements, and the project is often complained by the nearby residents during daily maintenance and management. Meanwhile, the engineering ventilation and exhaust system also has certain anti-strike protection capability, and continuous and stable operation of engineering equipment is guaranteed. The location of these exhaust, smoke evacuation, and heat dissipation construction sites is also often a weak point of the construction and equipment, and once discovered and destroyed by an adversary, will directly cause the whole construction or equipment to lose its combat effectiveness.
At present, two technical treatment measures are mainly adopted for the infrared sign and the smoke exhaust disguising treatment of the parts. Firstly, a cooling type camouflage technology is adopted, smoke is eliminated and cooled by a smoke elimination and cooling unit, infrared exposure symptoms are greatly reduced, the temperature of the discharged smoke is still far higher than the ambient temperature, the temperature of the discharged smoke is increased due to the heat conduction effect of long-time exhaust on an exhaust port and surrounding structures, the infrared camouflage control requirement is greatly exceeded, and a large amount of cooling water is needed; the smoke abatement cooling unit has a complex structure and is easy to produce oil smoke scale, so that the daily maintenance workload is large. And secondly, an air layer isolation technology is adopted, namely, air around the smoke outlet wraps high-temperature smoke to be discharged, so that the high-temperature smoke does not have the effects of heat conduction and the like on objects around the smoke outlet, and further has great temperature change to cause infrared exposure. Because the smoke discharged by the power station after smoke elimination is transparent to thermal infrared imaging reconnaissance, if high-temperature smoke does not heat the wall surface of a structure around a smoke outlet, infrared exposure symptoms can not be generated, and infrared camouflage is realized from the surface, for example, a camouflage type exhaust outlet represented by patent application publication No. CN102486359, the uncooled camouflage technology does not reduce the smoke temperature, does not need water cooling, does not have the problems of oil smoke accumulation and scaling of a heat exchanger, but needs an air supply device to provide an isolation air layer for an exhaust hood, and the air supply device needs to be additionally connected with a power supply outside a project for power supply, so the uncooled camouflage technology has the advantages of high construction difficulty, high manufacturing cost and weak anti-striking capability.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a jet type infrared camouflage preventing and protecting exhaust system which is simple and reasonable in structure. The problems of infrared exposure, black smoke exposure and the like in the exhaust heat dissipation of the current military engineering and military fuel power equipment exhaust, smoke exhaust or heat dissipation engineering points can be solved, and the anti-striking capability of the engineering equipment is improved.
The purpose of the invention is realized by the following technical scheme:
a jet type infrared camouflage preventing and protecting exhaust system comprises a power equipment linkage device, and a flue gas processor, a dust remover, a fan, an exhaust pipeline, a first wave absorbing elbow, an engineering external exhaust pipeline and an air nozzle which are sequentially connected; the power equipment linkage device is connected with the fan; the air nozzle comprises an exhaust nozzle and an infrared protection shielding cover; the utility model discloses an infrared protection exhaust hood, including infrared protection cover, exhaust nozzle, blast nozzle and infrared protection, the exhaust nozzle is connected with the outside exhaust duct of engineering, the periphery of exhaust nozzle is located to the pot head that infrared protection covered the lid, the other end that infrared protection covered the lid extends to the outer end of exhaust nozzle air jet, and has the interval between the inner wall that infrared protection covered the lid and the air jet of exhaust nozzle, exhaust nozzle and infrared protection cover the equal slope of lid and set up downwards, wind gap and back of the body enemy face down, the outside exhaust duct of engineering sets up according to slope i.
Further, the air discharge nozzle includes air discharge nozzle main part and the adiabatic heat preservation of exhaust, the adiabatic heat preservation cladding of exhaust is in the outside of air discharge nozzle main part, the air discharge nozzle main part is including the big footpath section and the path section that are connected, big footpath section is connected with the outside exhaust duct of engineering, the periphery of path section is located to an pot head that infrared protection shielded the lid, infrared protection shields the other end of lid and extends to the outer end of path section air jet, and infrared protection shields the inner wall of lid and has the interval between the air jet of path section.
Furthermore, the infrared protection shielding cover comprises a shielding ring, a flow guide ring and a supporting frame; the flow guide ring is arranged on the inner side of the shielding ring, the infrared protection shielding cover is integrated through the supporting frame, and a certain gap is formed among the shielding ring, the flow guide ring and the exhaust nozzle; the lower part of the guide ring is properly close to the exhaust nozzle; the support frame includes solid fixed ring and stabilizer blade, gu fixed ring cup joints in the outside of air discharge nozzle, the stabilizer blade is connected with the one end of shielding ring, water conservancy diversion ring, the other end of shielding ring, water conservancy diversion ring all extends to the outer end of air discharge nozzle air jet.
Further, the first wave-absorbing elbow comprises a first exhaust elbow, a second exhaust elbow and a wave-absorbing cover plate; the first exhaust elbow is connected with the second exhaust elbow, an included angle A is formed between the first exhaust elbow and the second exhaust elbow, a wave elimination port is formed at the joint of the first exhaust elbow and the second exhaust elbow, the wave elimination cover plate is rotatably arranged on the first exhaust elbow or the second exhaust elbow so as to open or close the wave elimination port,
furthermore, the first wave absorbing elbow further comprises a return spring and a support; the support mounting is in the both sides of first exhaust return bend or second exhaust return bend to be close to the setting of ripples mouth that disappears, the ripples apron that disappears rotationally installs in the support, reset spring is connected with the support, reset spring's one end and the lateral surface butt of the ripples apron that disappears, reset spring's the other end and support butt to make the ripples apron that disappears be in normally closed state.
Furthermore, the reset spring comprises an upper cross arm, an upper support arm, a spiral spring, a lower support arm and a lower cross arm; the two ends of the upper cross arm are both connected with one end of an upper support arm, the other end of the upper support arm is connected with a spiral spring, and the spiral spring is connected with the lower cross arm through a lower support arm; the support comprises a base, a shaft seat and a limit stop; the base is installed in first exhaust return bend, the axle bed sets up in the base, limit stop is located one side of base, the wave absorption apron has the pivot, wave absorption apron and coil spring are connected with the axle bed through the pivot, go up the lateral surface butt of xarm and wave absorption apron, xarm and base butt down, the lateral surface of wave absorption apron cooperatees with limit stop's spacing face.
Furthermore, the first wave absorbing elbow further comprises a rotating seat, a gravity hammer, a weight block and a limiting cover plate; the rotating seats are arranged on two sides of the second exhaust elbow and are close to the wave-absorbing port, and the wave-absorbing cover plate comprises a gravity hammer and a sealing cover matched with the wave-absorbing port; the closing cap rotationally installs in rotating the seat, the gravity hammer is connected with the closing cap, the weight piece is installed in the gravity hammer, spacing apron is installed in the top of rotating the seat to the biggest opening angle of restriction ripples that disappears apron.
Further, the wave-absorbing device also comprises a diffusion chamber and a wave-absorbing valve; the diffusion chamber is positioned between the flue gas processor and the dust remover, the ventilation exhaust pipe of engineering or equipment and the exhaust port of the flue gas processor are both connected with the diffusion chamber, and the wave-absorbing valve is arranged between the fan and the exhaust pipeline.
Furthermore, the house also comprises a camouflage room and a second wave-absorbing elbow; the second wave-absorbing elbow is installed at the air inlet end of the flue gas processor, and the flue gas processor, the dust remover, the fan and a part of exhaust pipeline are all arranged in the camouflage room.
Further, the device also comprises a flow sensor and a pressure sensor; the flow sensor is arranged at the air inlet of the fan and used for monitoring and metering the air quantity of the discharged gas; the pressure sensor is arranged at the air outlet of the fan and used for monitoring and measuring the air pressure and the air speed of the exhaust gas.
Further, exhaust duct, first exhaust return bend, second exhaust return bend and the outside exhaust duct of engineering all include pipeline main part, the adiabatic heat preservation of pipeline and the outer protective layer of pipeline of laminating from inside to outside in proper order.
The principle of the invention is as follows: after the discharged flue gas is purified by a flue gas processor and a dust remover, reducing the particle components in the discharged gas so as to reduce the infrared exposure symptoms of the discharged gas; then, pressurizing by using a fan to ensure that the gas is discharged through jet flow of the gas jet port at a certain speed, and at the moment, forming a gas flow beam with a certain shape by the gas discharged by the jet flow and spraying the gas flow beam to a position away from the gas jet port for dissipation in ambient air; shielding the gas jet heated by the exhaust gas by using an infrared protection shielding cover at a certain distance outside the boundary of the gas stream of the gas jet section, and preventing the heated gas jet from being caught by reconnaissance of an enemy; the diversion ring is adopted to generate airflow wall attachment effect and drainage effect, and the hot airflow is guided to the upper half part of the infrared protection shielding cover, so that the thermal effect of the hot airflow on the infrared protection shielding cover is further reduced; under the action of jet flow gas drainage effect, gaps among the shielding ring, the flow guide ring and the exhaust nozzle can generate drainage gas flow, and ambient air is guided to the inner periphery of the shielding cover to form a certain isolated gas layer, so that the thermal effect of hot air flow on the infrared protection shielding cover is further reduced, and the infrared camouflage prevention effect of the system is improved; after heat insulation and heat insulation treatment is carried out on an exhaust system pipeline and an exhaust pipeline externally arranged on the ground within a certain burial depth range, camouflage in modes of covering soil, vegetation and the like is carried out, because smoke discharged by a smoke-eliminating treatment power station is transparent to thermal infrared imaging reconnaissance, if an air jet port affected by high-temperature smoke heating is shielded and camouflaged, infrared exposure symptoms cannot be generated, and the purpose of infrared camouflage prevention of the exhaust system is achieved. Meanwhile, the influence of shock waves generated when the shock absorber is struck is reduced through the action of the wave absorbing elbow and the wave absorbing valve.
Taking a civil air defense engineering power station exhaust system as an example, the diffusion chamber in the jet type infrared camouflage elimination exhaust system is used for collecting and mixing exhaust gas of an engineering ventilation system, exhaust gas of a diesel engine and the like, reducing the exhaust temperature of the exhaust gas of the diesel engine and eliminating shock wave residual pressure entering engineering through the exhaust system after being hit; the dust remover is arranged at the air inlet of the pressurizing fan, further filters dust, smoke dust and the like in the exhaust gas, and reduces the content of microparticles in the exhaust gas so as to reduce the infrared symptoms of the air; the fan is arranged on the inner side of the wave-absorbing valve and connected with the wave-absorbing valve through a pipeline to form a closed exhaust channel, the fan pressurizes exhaust gas, the gas has a certain speed at the air jet port, a certain gas flow beam is formed for exhaust, smoke is melted in ambient air at a certain distance away from the air jet port, and the exhaust gas is prevented from diffusing and gathering nearby the air jet port in an unorganized manner, so that the exhaust pipeline and the surrounding environment absorb heat to cause the difference with the ambient temperature, and the difference becomes a sign for enemy infrared reconnaissance and judgment; the air jet sets up in the position that does benefit to gaseous barrier-free exhaust usually, and the air jet is with certain angle to the slope directly below, and just discharges towards leeward direction and back to enemy face direction, reduces by enemy reconnaissance probability. The infrared-proof shielding cover is formed by a special structure subjected to heat preservation treatment by an insulating material, the outer edge section of the infrared-proof shielding cover is preferably 10-20 cm higher than the outer edge of the air jet, and the infrared-proof shielding cover is arranged at a certain interval which is not contacted by the jet flow beam at the periphery of the air jet to shield the air jet with the temperature rising due to heat conduction of the exhaust gas and avoid the reconnaissance of an enemy at the air jet. The infrared protection shielding cover is internally provided with a flow guide ring, so that airflow wall attachment effect and flow guide effect are generated, hot airflow is guided to the upper half part of the infrared protection shielding cover, and the thermal effect of the hot airflow on the infrared protection shielding cover is further reduced; under the action of jet flow gas drainage effect, gaps among the shielding ring, the flow guide ring and the exhaust nozzle can generate drainage airflow, and ambient air is guided to the inner periphery of the shielding cover to form a certain isolation air layer, so that the thermal effect of hot airflow on the shielding cover is further reduced, and the infrared camouflage protection effect of the system is improved. The wave-absorbing valve is arranged at the air outlet of the pressurizing fan, the outer side of the wave-absorbing valve is connected with the exhaust pipe to form a closed exhaust passage, and the wave-absorbing valve absorbs shock waves which are hit so as to protect equipment in engineering, including the pressurizing fan; the wave-absorbing elbow is arranged on the exhaust pipe section, the wave-absorbing cover plate is in a closed state daily, smooth exhaust is guaranteed, when shock waves act, the wave-absorbing cover plate is opened, the shock waves escape from the wave-absorbing opening, and therefore the influence of the shock waves on the inside of a project is reduced; through the linkage mode, set up with engineering ventilation air conditioning system, diesel generating set system integration, for effective implementation exhaust system's anti infrared camouflage, should start the booster fan before using engineering ventilation air conditioning system, diesel generating set system to ensure that exhaust gas jets out the exhaust with the efflux mode all the time.
In order to improve the automatic information management capability, the system can be internally provided with a flow sensor and a pressure sensor in the engineering, wherein the flow sensor is arranged at the air inlet of the fan and used for monitoring and metering the air volume of the discharged gas; the pressure sensor is arranged at the air outlet of the fan and used for monitoring and measuring the air pressure and the air speed of the discharged air. The flow sensor and the pressure sensor can also be arranged in the metering pipe section together according to the situation. Through the monitoring of flow, wind pressure and wind speed, master the ventilation exhaust condition in real time to set up with aggregate unit is integrative, can realize the real-time supervision and the control to this system operation condition, realize automatic information-based management.
Compared with the prior art, the invention has the following advantages:
1. the system directly connects a power supply in the engineering by arranging the booster fan in the engineering, does not need to connect a power supply additionally outside the engineering, and reduces the construction cost. The exhaust gas is pressurized by the fan to form a gas stream jet with a certain speed, so that the exhaust gas is not diffused around the engineering mouth any more, and the exhaust gas is prevented from being diffused and gathered nearby the air jet in an unorganized manner, so that the exhaust pipeline and the surrounding environment absorb heat to cause the difference with the ambient temperature, and the difference becomes a sign for infrared reconnaissance and judgment of enemies. The infrared protection shielding cover and the air jet are arranged at a certain distance by utilizing the characteristic that jet gas has a certain boundary, so that sprayed airflow beams are prevented from contacting the infrared protection shielding cover, the infrared protection shielding cover is prevented from adsorbing excessive smoke heat, the purpose of infrared camouflage is realized, and the structure is simple and easy to implement.
2. The system utilizes the wall attachment effect of jet gas to properly arrange the lower part of a guide ring arranged in the infrared protection shielding cover close to the air nozzle, so that the discharged air flow generates the wall attachment effect, the hot air flow is guided to the upper half part deviating from the infrared protection shielding cover, and the heat conduction and radiation effects of the hot air flow on the upper part of the infrared protection shielding cover are further reduced.
3. The system utilizes the injection effect of jet gas, and under the jet effect of airflow, the space among the shielding ring of the infrared-proof shielding cover, the flow guide ring and the air nozzle generates injection airflow, so that ambient air is guided to the inner periphery of the infrared-proof shielding cover, the air layer isolation effect is achieved, and the heat conduction effect of hot airflow on the infrared-proof shielding cover is further reduced.
4. The system guides the exhaust gas to a favorable terrain for discharge through the exhaust pipeline with a certain length, and can guide the target point which is easy to expose to a position far away from the engineering main body, thereby reducing the probability that the engineering is attacked and damaged. The system reduces the acting force of shock waves generated when the engineering is struck on entering the engineering by arranging the wave-absorbing elbow, thereby protecting equipment facilities in the engineering.
5. This system is through setting up two devices of flue gas treater and dust remover, can effectively solve the power station exhaust black, blue, grey or white smog when operation, has both reduced infrared exposure sign, has also improved the exhaust gas quality, accords with national green requirement, also avoids peripheral public complaint and environmental protection punishment.
6. The air nozzle in the system comprises an exhaust nozzle and an infrared protection shielding cover, wherein the infrared reconnaissance shielding cover is arranged at a certain distance of the air nozzle of the exhaust nozzle and is used for shielding the air nozzle with infrared exposure symptoms. The exhaust pipeline has certain anti-strike capability for a steel pipe with certain thickness, is matched with the engineering resistance level, can ensure that the anti-strike protection standard is matched with the engineering protection level, improves the overall protection capability of the engineering, and solves the problem of weak anti-strike capability of the existing infrared exhaust prevention technology.
7. The exhaust pipeline part outside the system engineering is preferably laid underground, is thermally isolated by a thermal insulation material with good thermal insulation performance, can be subjected to camouflage modes such as soil covering, vegetation and the like according to topographic features, can further reduce exposed signs of the engineering mouth part, and has simple and easy process and obvious camouflage effect.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view showing a jet type infrared camouflage preventing and protecting exhaust system according to embodiment 1 of the invention;
FIG. 2 is a schematic view showing the gas flow discharged from the gas ejection port in example 1 according to the present invention;
FIG. 3 is a schematic view showing the construction of an exhaust nozzle in embodiment 1 according to the present invention;
FIG. 4 shows an exploded view of FIG. 3;
fig. 5 is a schematic structural view showing an infrared protection shield cover according to embodiment 1 of the present invention;
FIG. 6 shows an exploded view of the infrared shielding canopy;
FIG. 7 is a schematic structural view showing an exhaust pipe according to embodiment 1 of the present invention;
FIG. 8 is a schematic structural view showing a closed wave-damping port of a first wave-damping elbow according to embodiment 1 of the present invention;
fig. 9 is a schematic structural view showing an open wave-damping port of a first wave-damping elbow in embodiment 1 of the present invention;
FIG. 10 is a schematic view showing the structure of a wave-canceling cover plate according to embodiment 1 of the present invention;
fig. 11 is a schematic structural view showing a return spring in embodiment 1 of the present invention;
FIG. 12 is a schematic view showing the structure of a cradle according to embodiment 1 of the present invention;
FIG. 13 is a schematic structural view showing a jet type infrared camouflage preventing and protecting exhaust system according to embodiment 2 of the invention;
FIG. 14 is a schematic view showing the installation of the muffler cover plate to the second exhaust elbow according to embodiment 3 of the present invention;
FIG. 15 is a schematic view of the shock wave relief cover plate of FIG. 14 being opened after being subjected to a shock wave;
in the figure, 1, a smoke exhaust pipe; 2. a flue gas processor; 3. ventilating and exhausting pipes; 4. a diffusion chamber; 5. a dust remover; 6. a fan; 7. a wave-absorbing valve; 8. an exhaust duct; 9. a first wave dissipating elbow; 10. an engineering external exhaust duct; 11. an air nozzle; 12. an air jet; 13. a power plant linkage; 14. a flow sensor; 15. a pressure sensor; 16. a gas stream; 1601. conducting air flow; 17. a gas flow stream boundary; 18. a first exhaust elbow; 19. a second exhaust elbow; 20. a wave-absorbing cover plate; 2001. a rotating shaft; 21. a wave elimination port; 22. a return spring; 2201. an upper cross arm; 2202. an upper support arm; 2203. a coil spring; 2204. a lower support arm; 2205. a lower cross arm; 23. a support; 2301. a base; 2302. a shaft seat; 2303. a limit stop block; 24. an exhaust nozzle; 2401. an exhaust nozzle body; 2402. an exhaust heat insulation layer; 25. an infrared protective shield cover; 2501. a flow guide ring; 2502. a shield ring; 2503. a deflector ring body; 2504. the heat insulation layer is arranged in the flow guide ring; 2505. the outer heat insulation layer of the diversion ring; 2506. a shield ring body; 2507. the heat insulation layer in the shielding ring; 2508. the shielding ring is externally provided with a heat insulation layer; 2509. a fixing ring; 2510. a support leg; 26. a camouflage room; 27. a second wave-absorbing elbow; 28. a pipe body; 29. a pipeline heat insulation layer; 30. an outer protective layer for the pipeline; 31. a cushion layer; 32. covering the buried layer; 33. camouflaged vegetation; 34. discharging the flue gas; 35. a shock wave; 36. an exhaust port connecting pipe; 37. a rotating seat 38, a gravity hammer; 39. a limiting baffle; 40. a weight block; 41. a closure cap; the angle B is a vertical inclination angle; the angle G is the diffusion angle of the airflow beam; l1 is the jet distance of the airflow beam; l2 is the protection distance of the infrared protection shielding cover.
Detailed Description
The invention is further illustrated by the following figures and examples.
Example 1:
the embodiment takes a civil air defense engineering diesel power station as an example, and the exhaust gas of different power equipment is slightly different due to the structural modeling mode and the like, but the design concept is the same.
The jet type infrared camouflage preventing and protecting exhaust system shown in fig. 1-2 comprises a power equipment linkage device 13, and a flue gas processor 2, a diffusion chamber 4, a dust remover 5, a fan 6, a wave absorbing valve 7, an exhaust pipeline 8, a first wave absorbing elbow 9, an engineering external exhaust pipeline 10 and an air nozzle 11 which are connected in sequence; and the engineering external exhaust pipeline is arranged according to the gradient i. Wherein the slope i is 3 ~ 5, has 3 ~ 5 contained angles between engineering outside exhaust duct and the horizontal plane promptly, also can set up certain slope according to the relief condition to prevent condensate water, rainwater refluence. A smoke exhaust pipe 1 of the diesel power station is connected with a smoke processor, and exhaust ports of a ventilation exhaust pipe 3 and the smoke processor 2 of the civil air defense project are both connected with a diffusion chamber 4. The smoke discharged by a diesel generator (not shown) passes through a smoke discharge pipe 1 of the diesel generator, is purified by a smoke processor 2, is mixed with an engineering ventilation system through a ventilation exhaust pipe 3 in a diffusion chamber 4 for cooling, and is purified again by a dust remover 5, so that black smoke particles, dust and the like in the discharged gas are further reduced, and the infrared exposure symptoms of particles contained in the discharged gas are further reduced; the purified gas is pressurized by a fan 6, passes through a wave-absorbing valve 7, an exhaust pipeline 8, a first wave-absorbing elbow 9, an engineering external exhaust pipeline 10 and an air nozzle 11, and is emitted at a certain speed of an air flow beam 16 at a certain position away from an air nozzle 12 at a position and direction favorable for exhaust and then diffused into the air.
As shown in fig. 2 to 6, the air nozzle 11 includes an exhaust nozzle 24 and an infrared shielding cover 25; the exhaust nozzle 24 is connected with the engineering external exhaust pipeline 10, one end of the infrared protection shielding cover 25 is sleeved on the periphery of the exhaust nozzle 24, the other end of the infrared protection shielding cover 25 extends to the outer end of the air jet 12 of the exhaust nozzle 11, a distance is reserved between the infrared protection shielding cover 25 and the air jet 12 of the exhaust nozzle 24, the lower portion of the infrared protection shielding cover 25 is properly close to the exhaust nozzle 24, and the exhaust nozzle 24 and the infrared protection shielding cover 25 are both obliquely and downwards arranged and face towards a lower air inlet and a back enemy surface. The included angle B between the vertical inclined plane of the exhaust nozzle 24 and the infrared protection shielding cover 25 and the vertical direction is 15-30 degrees, the infrared protection shielding cover 25 is utilized to shield the camouflage air jet 12 with the temperature rising caused by the heat conduction action of the exhaust gas, and therefore the air reconnaissance of enemies is realized.
The exhaust nozzle 24 comprises an exhaust nozzle main body 2401 and an exhaust heat insulation layer 2402, wherein the exhaust heat insulation layer 2402 is tightly wrapped on the outer surface of the exhaust nozzle main body 2401 to isolate exhaust gas from generating heat conduction outwards. Exhaust nozzle main part 2401 is including the big footpath section and the path section that are connected, big footpath section is connected with the outside exhaust duct 10 of engineering, the one end that lid 25 was shielded in infrared protection supports in the periphery of path section, the other end that lid 25 was shielded in infrared protection extends to the outer end of path section jet orifice to have the interval between the jet orifice of path section. As shown in fig. 3 and 4, the exhaust nozzle 24 is an exhaust device gradually narrowing toward the outside and having a small diameter, which is set according to the calculation of the air pressure of the air flow, so as to ensure that the exhaust air is emitted as the air flow beam 16 at a constant speed. The air flow beam 16 which is pressurized by the fan and is emitted out of the exhaust nozzle 24 has a certain shape, and the air has a certain obvious air flow beam boundary 17 in a certain range in the emitting process and is gradually dispersed and blurred along the emitting direction. The airflow bundle boundary 17 and the axial direction of the jet airflow have a jet airflow bundle diffusion angle ≤ G (shown in fig. 2), and the airflow bundle boundary 17 gradually blurs at a certain airflow bundle jet distance L1 (shown in fig. 2), so that the exhaust gas and the air are fused together. The gas can cause heat conduction to the gas nozzle 12 in the process of jetting, so that the temperature of the gas nozzle 12 is highly exposed, in order to realize the purpose of carrying out infrared reconnaissance camouflage on the gas nozzle 12, the infrared protection shielding cover 25 is arranged on the periphery of the gas nozzle 12, a certain infrared protection shielding cover protection interval L2 (shown in figure 2) is kept between the infrared protection shielding cover 25 and the periphery of the gas flow beam boundary 17, the gas flow beam 17 is prevented from contacting the infrared protection shielding cover 25, the infrared protection shielding cover 25 is utilized to carry out shielding camouflage on the gas nozzle 12, and therefore the purpose of carrying out infrared camouflage prevention on an engineering exhaust system is achieved.
As shown in fig. 5 and 6, the infrared shielding cover 25 includes a deflector ring 2501, a shielding ring 2502, and a support frame; the diversion ring 2501 and the shielding ring 2502 form an integrated infrared protection shielding cover 25 through a support frame, the diversion ring 2501 is arranged on the inner side of the shielding ring 2502, and a certain gap is formed among the shielding ring 2502, the diversion ring 2501 and the exhaust nozzle 24; the lower part of the guide ring 2501 is properly close to the exhaust nozzle 24; the support frame includes solid fixed ring 2509 and stabilizer blade 2510, gu fixed ring 2509 cup joints in the outside of exhaust nozzle 24, stabilizer blade 2510 is connected with the one end of shielding ring 2502, water conservancy diversion ring 2501, the other end of shielding ring 2502, water conservancy diversion ring 2501 extends to the outer end of exhaust nozzle jet orifice, water conservancy diversion ring 2501, shielding ring 2502 are wrapped by adiabatic heat preservation. A support plate may be disposed between the shielding ring 2502 and the deflector ring 2501 to form a space. The support legs are made of non-metal materials with heat insulation and certain strength.
The deflector ring 2501 and the shielding cover 2502 are rigid structures made of heat insulating materials in a wrapping mode, wherein the deflector ring 2501 comprises a deflector ring main body 2503, an inner deflector ring heat insulation layer 2504 and an outer deflector ring heat insulation layer 2505; the shield cover 2502 includes a shield cover main body 2506, a shield cover ring inner heat insulation layer 2505 and a shield cover outer heat insulation layer 2508, and the shield ring 2502 and the deflector ring 2501 protected by the inner and outer heat insulation layers are not affected by the heat conduction effect of the backflow gas possibly generated by the exhaust gas, thereby avoiding the generation of infrared exposure symptoms. The lower part of the guide ring 2501 is properly close to the air nozzle, so that an air flow wall attachment effect is generated, hot air flow is guided to the upper half part of the infrared protection shielding cover, and the thermal effect of the hot air flow on the infrared protection shielding cover is further reduced; under the action of jet flow gas drainage effect, drainage gas flow can be generated in gaps among the shielding ring 2502, the flow guide ring 2501 and the exhaust nozzle 24, and ambient air is guided to the inner periphery of the infrared-proof shielding cover to form a certain isolated gas layer, so that the thermal effect of hot gas flow on the infrared-proof shielding cover is further reduced, and the infrared-proof camouflage protection effect of the system is improved. The supports are generally two in number, made of rigid material with weak heat conduction and ensure the infrared shielding cover 25 and the exhaust nozzle 24 to be stably arranged. The support frame is subjected to heat insulation treatment, so that the influence of heat conduction and heat radiation is reduced.
The discharged flue gas is purified by a flue gas processor and a dust remover, then is pressurized by a fan, is guided to the downwind direction and the back enemy surface by an exhaust pipeline which is processed by heat insulation measures, and is jetted to a certain position by an airflow beam at a certain speed and then is diffused into the air; meanwhile, the characteristic that the air flow has an obvious boundary is utilized, and the infrared protection shielding cover is arranged at a certain protection interval on the periphery of the air flow, so that the exhaust nozzle generating infrared exposure symptoms due to heating of the air flow is shielded and disguised, and the aim of preventing infrared reconnaissance and disguising is fulfilled.
This system is through setting up two devices of flue gas treater and dust remover, can effectively solve the power station exhaust black, blue, grey or white smog when operation, has both reduced infrared exposure sign, has also improved the exhaust gas quality, accords with national green requirement, avoids peripheral public complaint and environmental protection punishment.
The power equipment linkage device 13 is connected with the fan; the fan 6 is arranged in linkage with engineering exhaust and smoke discharge power equipment (not shown) such as civil air-conditioning ventilation equipment, diesel generating sets and the like. In the using process, the fan 6 is started before the exhaust and smoke exhaust power equipment (not shown), the fan 6 is ensured not to be started, the engineering exhaust and smoke exhaust power equipment (not shown) cannot be started in advance, and the fan 6 continues to work until the temperature of the exhaust gas meets the camouflage requirement within a certain time after the engineering exhaust and smoke exhaust power equipment (not shown) stops and does not exhaust the gas. On one hand, the phenomenon that the exhaust gas cannot form airflow beam with a certain speed to be ejected is avoided, so that the exhaust gas without the speed of the ejection flow diffuses around the exhaust nozzle 24, the temperature of the infrared protection shielding cover 25 is increased due to the heat conduction effect of the exhaust gas, and the infrared exposure symptoms are detected and captured by the enemy. On the other hand, when the engineering exhaust and smoke exhaust power equipment (not shown) is shut down, the natural exhaust gas of the engineering still has a large amount of heat, and the fan 6 continues to work for a period of time to ensure that the exhaust gas is shut down after the temperature of the exhaust gas meets the camouflage requirement. The power plant linkage 13 can be implemented using existing control systems.
Also includes a flow sensor 14 and a pressure sensor 15; the flow sensor 14 is arranged at an air inlet of the fan 6 and used for monitoring and metering the air quantity of the discharged gas; the pressure sensor 15 is installed at the air outlet of the fan 6 and used for monitoring and measuring the air pressure and the air speed of the discharged air. The flow sensor 14, the pressure sensor 15 and the power equipment linkage device 13 can adopt the existing automatic information management design, and transmit the correlation to an automatic information module (not shown) to realize the automatic information management of the engineering equipment.
The size and the type of a diesel generator smoke exhaust pipe 1, a smoke processor 2, a ventilation and exhaust pipe 3, a diffusion chamber 4, a dust remover 5, a flow sensor 14, a pressure sensor 15, a wave-absorbing valve 7, an exhaust pipeline 8, a first wave-absorbing elbow 9, an engineering external exhaust pipeline 10 and the like are selected according to relevant requirements of engineering design; the fan 6 is selected according to the design of ensuring the certain speed of the exhausted gas to be ejected; the exhaust pipeline 8, the wave-absorbing elbow 9 and the engineering external exhaust pipeline 10 are made of heat-resistant, corrosion-resistant and certain-strength pipes, and are subjected to corrosion-resistant treatment, namely, a reinforced concrete structure air duct or a steel pipe with certain resistance strength is taken as the exhaust pipeline. The gas jet 12 is led to the favorable positions such as the downwind direction or the back enemy surface and the like to eject and discharge the discharged gas; the temperature rise of the infrared protection shielding cover 25 caused by exhaust gas backflow can be reduced as much as possible by selecting the downward wind direction; the enemy-opposite side is selected to avoid the head-on scouting and capturing of the enemy; the exhaust pipeline is preferably a steel pipe with a smooth surface so as to reduce the resistance of ventilation airflow; when the air duct with the reinforced concrete structure is adopted, the inner surface of the air duct is subjected to smoothing treatment so as to reduce the resistance of ventilation airflow; the method can treat the barriers which are discharged by the gas discharged from the gas nozzle 12 and affect the discharge and the heat dissipation of the discharged gas within a certain range, so that the discharged gas is quickly dissipated into the air, and the infrared exposure symptom caused by the heat absorption of the surrounding barriers is avoided.
The exhaust pipeline 8, the wave-absorbing elbow 9, the engineering external exhaust pipeline 10 and the exhaust nozzle 11 are processed by adopting heat insulation measures at the pipeline parts close to the engineering external ground cover section and the engineering external section, so that the temperature of exhaust gas is prevented from being conducted to the soil around the exhaust pipeline, and the target exposure of the exhaust pipeline due to the temperature rise caused by the heat conduction of the exhaust gas is avoided. The wave eliminating elbow 9 and the project external exhaust pipeline 10 are positioned on the project external section pipeline, the wave eliminating elbow 9 and the wave eliminating port 21 are provided with a wave eliminating cover plate 20, the rest of the wave eliminating elbow and the wave eliminating port are arranged underground, buried by covering soil, camouflaged by vegetation and the like, and the exposure signs are further reduced.
As shown in fig. 8 and 9, the first trap elbow 9 comprises a first exhaust elbow 18, a second exhaust elbow 19 and a trap cover plate 20; the first exhaust elbow 18 is connected with the second exhaust elbow 19, an included angle A is formed between the first exhaust elbow 18 and the second exhaust elbow 19, a wave elimination port 21 is formed at the joint of the first exhaust elbow 18 and the second exhaust elbow 19, and the wave elimination cover plate 20 is rotatably installed on the first exhaust elbow 18 or the second exhaust elbow 19 to open or close the wave elimination port 21. The wave-absorbing cover plate 20 is normally closed and is opened under the impact of the shock wave 35, so that the shock wave 35 escapes from the wave-absorbing opening 21, and internal facilities of the engineering are protected. In this embodiment, the wave damping cover 20 is rotatably mounted to the first exhaust elbow 18 such that the wave damping cover 20 opens in a counter-clockwise direction upon impact of a shock wave. In an alternative embodiment, a wave-canceling cover 20 is rotatably mounted to the second exhaust elbow 19, the wave-canceling cover 20 opening in a clockwise direction upon impact of a shock wave. The included angle a between the first exhaust elbow 18 and the second exhaust elbow 19 is designed according to the actual terrain, and is not specifically limited.
As shown in fig. 8-12, the first wave-absorbing elbow 9 further comprises a return spring 22 and a support 23; the support 23 is installed on two sides of the first exhaust elbow 18 or the second exhaust elbow 19 and is close to the wave-absorbing port 21, the wave-absorbing cover plate 20 is rotatably installed on the support 23, the return spring 22 is connected with the support 23, one end of the return spring 22 is abutted to the outer side face of the wave-absorbing cover plate 20, and the other end of the return spring 22 is abutted to the support 23, so that the wave-absorbing cover plate 20 is in a normally-closed state.
The return spring 22 comprises an upper cross arm 2201, an upper cross arm 2202, a spiral spring 2203, a lower cross arm 2204 and a lower cross arm 2205; both ends of the upper cross arm 2201 are connected with one end of an upper arm 2202, the other end of the upper arm 2202 is connected with a spiral spring 2203, and the spiral spring 2203 is connected with a lower cross arm 2205 through a lower arm 2204; the support 23 comprises a base 2301, a shaft seat 2302 and a limit stop 2303; the base 2301 is installed on two sides of the first exhaust elbow 18 or the second exhaust elbow 19, in this embodiment, the shaft seat 2302 is installed on the top end of the base 2301, the limit stop 2303 is located on one side of the base 2301, the wave absorbing cover plate 20 has a rotating shaft 2001, the wave absorbing cover plate 20 and the coil spring 2203 are connected with the shaft seat 2302 through the rotating shaft 2001, the upper cross arm 2201 abuts against the outer side surface of the wave absorbing cover plate 20, the lower cross arm 2205 abuts against the base 2301, and the outer side surface of the wave absorbing cover plate 20 is matched with the limit surface of the limit stop 2303. The wave absorbing cover plate 20, the spiral spring 2203 and the shaft seat 2302 are connected through gaskets, anti-falling bolts, nuts and the like.
In the embodiment, a wave elimination port 21 is formed at the reverse turning position of the axis of the air outlet pipe orifice of the second exhaust elbow pipe 19, support seats 23 are arranged on two sides of the first exhaust elbow pipe 18, and a wave elimination cover plate 20 and a return spring 22 are arranged on the support seats 23 through a rotating shaft 2001; the wave-absorbing cover plate 20 keeps the wave-absorbing port 21 in a closed state under the action of the return spring 22, so that the discharged flue gas 34 is normally discharged through the first wave-absorbing elbow 9; a limit stop 2303 is arranged on one side of the support 23, and is used for limiting the rotation angle (generally not greater than 135 degrees) of the wave-absorbing cover plate 20; the limiting surface of the limiting block 2303 is matched with the contact surface of the wave-absorbing cover plate 20, so that uniform pressure is ensured. When the exhaust works normally, the wave-absorbing cover plate 20 seals the wave-absorbing opening 21 under the action of the return spring 22, and the exhaust smoke 34 is discharged outwards through the first wave-absorbing elbow 9 and the engineering external exhaust pipeline 10; when the engineering is hit, the generated shock wave 35 enters the engineering external exhaust pipeline 10 through the air jet port 12 and is transmitted inwards along the exhaust pipeline, when the shock wave 35 reaches the turning position of the first shock wave eliminating elbow 9, the shock wave cover plate 20 is pushed open under the action of the shock wave 35, and the shock wave 35 escapes from the shock wave eliminating port 21, so that the shock wave acting force entering the engineering along the exhaust pipeline is reduced, and the engineering internal equipment facilities are protected; after the shock wave action is reduced, the wave-absorbing cover plate 20 automatically restores to close the wave-absorbing opening 21 under the action of the return spring 22, so that the first wave-absorbing elbow 9 is positioned at the working position of normal exhaust and smoke exhaust, and the normal work of the first wave-absorbing elbow 9 is continuously ensured; limiting stop 2303 limits rotation angle of wave-absorbing cover plate 20 under the effect of shock wave to be too big and unable to recover, guarantees that wave-absorbing cover plate 20 can recover fast automatically and seal wave-absorbing opening 21 under the effect of reset spring 22. When the shock wave is under negative pressure, the shock wave can open the wave-absorbing cover plate 20, and because the distance between the wave-absorbing port 21 and the air jet port 12 is shorter than the length of the pipe section entering the engineering, the resistance is also less than that of the pipe section in the engineering, and the negative pressure forms a short circuit, thereby reducing the damage of the negative pressure to the interior of the engineering.
As shown in fig. 7, the exhaust duct 8, the first exhaust elbow 18, the second exhaust elbow 19 and the engineering external exhaust duct 10 have the same structure, and each of them includes a duct main body 28, a duct heat-insulating layer 29 and a duct outer protective layer 30, which are sequentially attached from inside to outside. The conduit body 28 is preferably made of a steel pipe having a certain impact resistance; the pipe main body 28 is tightly wrapped by the pipe heat insulation layer 29, and the surface design temperature of the pipe main body is the average environmental temperature, which is usually calculated at 20 ℃; the outer pipeline protection layer 30 is preferably made of corrosion-resistant materials such as stainless steel materials and the like, tightly wraps the pipeline heat-insulating layer 29, and prolongs the service life of the pipeline heat-insulating layer 29.
The exhaust pipeline 8, the wave-absorbing elbow 9 and the engineering external exhaust pipeline 10 are positioned at the external part of the engineering, usually underground burying treatment is adopted, and the lower half part and the bottom part of the pipeline ditch adopt permeable materials as a cushion layer 31 and are tamped; then covering the buried layer 32 by using local materials according to the topography of the terrain according to the surrounding environment condition to carry out camouflage landfill treatment; camouflage vegetation 33 may be used for further camouflage treatment depending on the surrounding terrain.
Other military projects such as underground command posts, technical reconnaissance tunnels, communication tunnels, personnel concealing project exhaust and smoke exhaust systems, cooling towers and other heat dissipation systems, and military fuel power equipment such as military transport vehicles, mobile power stations, fuel stoves and other exhaust and smoke exhaust systems can be correspondingly adjusted on the basis of the exhaust systems or by the technical scheme, and exhaust is carried out in a jet mode so as to prevent the infrared reconnaissance shielding cover from shielding an air jet with infrared exposure symptoms, thereby realizing the purpose of preventing infrared camouflage.
Example 2:
the present example is the same as example 1 except for the following technical features:
aiming at the built engineering, under the condition that the system in the embodiment 1 is not arranged in the engineering, the jet type infrared camouflage preventing exhaust system shown in the embodiment can be arranged at the exhaust port part outside the engineering to prevent the infrared camouflage of the exhaust gas discharged by the engineering.
Fig. 13 shows a jet-type infrared camouflage preventing and protecting exhaust system implemented outside a project, which comprises an exhaust port connecting pipe 36, a second wave absorption elbow 27, a flue gas processor 2, a dust remover 5, a fan 6, an exhaust pipeline 8, a first wave absorption elbow 9, a project external exhaust pipeline 10 and an air nozzle 11 which are connected in sequence; the power equipment linkage device 13 is connected with the fan 6; the engineering external exhaust duct 10 is set at a gradient i. The camouflage room 26 is arranged at the exhaust port part, the exhaust port connecting pipe 36, the first wave-absorbing elbow, the second wave-absorbing elbow, the flue gas processor 2, the dust remover 5, the flow sensor 14, the fan 6, the power equipment linkage device 13 and the pressure sensor 15 are arranged in the camouflage room 26, and the rest parts of the system are the same as those in embodiment 1. The structure of the second wave-absorbing elbow is the same as that of the first wave-absorbing elbow.
Example 3:
in another preferred embodiment of the wave-absorbing elbow, as shown in fig. 14 and 15, the first wave-absorbing elbow 9 further comprises a rotating base 37, a gravity weight 38, a limit stop 39 and a weight 40; the rotating seat 37 is installed on two sides of the second exhaust elbow 19 and is arranged close to the wave-eliminating port 21, the wave-eliminating cover plate comprises a gravity hammer 38 and a sealing cover 41 matched with the wave-eliminating port 21, the sealing cover 41 is rotatably installed on the rotating seat 37, the gravity hammer 38 is connected with the outer side surface of the sealing cover 41, one end of the weight hammer 38 is connected with the outer side surface of the sealing cover 41, and the other end of the gravity hammer 38 is provided with a weight block 40, so that the wave-eliminating cover plate 20 is in a normally closed state through a lever principle and the action of gravity. When the shock wave acts, the shock wave absorption cover plate 20 is opened, and the shock wave 35 escapes from the shock wave absorption port 21, so that the shock wave acting force entering the engineering along the exhaust pipeline is reduced, and the internal equipment facilities of the engineering are protected; after the shock wave action is reduced, the wave-absorbing cover plate 20 automatically restores and seals the wave-absorbing opening 21 under the action of the weight block 40, so that the first wave-absorbing elbow 9 is positioned at the working position of normal exhaust and smoke discharge, and the normal work of the first wave-absorbing elbow 9 is continuously ensured; limiting baffle 39 limits wave-absorbing cover plate 20 and can't recover too much in angle of rotation under the effect of shock wave, guarantees that wave-absorbing cover plate 20 can recover fast automatically and seal wave-absorbing opening 21 under the effect of weight piece 40. When the shock wave is under negative pressure, the shock wave can open the wave-absorbing cover plate 20, and because the distance between the wave-absorbing port 21 and the air jet port 12 is shorter than the length of the pipe section entering the engineering, the resistance is also less than that of the pipe section in the engineering, and the negative pressure forms a short circuit, thereby reducing the damage of the negative pressure to the interior of the engineering.
The above detailed description is a preferred embodiment of the present invention, and is not intended to limit the present invention, and any other modifications or equivalent substitutions that do not depart from the spirit of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The utility model provides a jet type prevents infrared camouflage protection exhaust system which characterized in that: the device comprises a power equipment linkage device, and a flue gas processor, a dust remover, a fan, an exhaust pipeline, a first wave absorption elbow, an engineering external exhaust pipeline and an air nozzle which are connected in sequence; the power equipment linkage device is connected with the fan; the air nozzle comprises an exhaust nozzle and an infrared protection shielding cover; the exhaust nozzle is connected with an engineering external exhaust pipeline, one end of the infrared protection shielding cover is sleeved on the periphery of the exhaust nozzle, the other end of the infrared protection shielding cover extends to the outer end of an air nozzle of the exhaust nozzle, a distance is reserved between the inner wall of the infrared protection shielding cover and the air nozzle of the exhaust nozzle, the exhaust nozzle and the infrared protection shielding cover are obliquely and downwards arranged and face a lower air opening and a back enemy surface, and the engineering external exhaust pipeline is arranged according to a gradient i;
the infrared protection shielding cover comprises a shielding ring, a flow guide ring and a supporting frame; the flow guide ring is arranged on the inner side of the shielding ring, and gaps are formed among the shielding ring, the flow guide ring and the exhaust nozzle; the lower part of the guide ring is arranged close to the exhaust nozzle; the support frame includes solid fixed ring and stabilizer blade, gu fixed ring cup joints in the outside of exhaust nozzle, the stabilizer blade is connected with the one end of shielding ring and water conservancy diversion ring, shields the outer end that ring and water conservancy diversion ring other end extend to the exhaust nozzle air jet.
2. The fluidic infrared camouflage preventing and protecting exhaust system as set forth in claim 1, wherein: the exhaust nozzle comprises an exhaust nozzle main body and an exhaust heat insulation layer; the exhaust heat insulation layer is coated on the outer side of the exhaust nozzle main body, the exhaust nozzle main body comprises a large-diameter section and a small-diameter section which are connected, the large-diameter section is connected with an external exhaust pipeline of an engineering, one end of the infrared protection shielding cover is sleeved on the periphery of the small-diameter section, the other end of the infrared protection shielding cover extends to the outer end of the small-diameter section air nozzle, and an interval is reserved between the inner wall of the infrared protection shielding cover and the small-diameter section air nozzle.
3. The fluidic infrared camouflage preventing and protecting exhaust system as set forth in claim 1, wherein: the first wave-absorbing elbow comprises a first exhaust elbow, a second exhaust elbow and a wave-absorbing cover plate; first exhaust return bend is connected with second exhaust return bend, and has contained angle A between first exhaust return bend and the second exhaust return bend, the junction of first exhaust return bend and second exhaust return bend is opened has the wave elimination mouth, the wave elimination apron is rotationally installed in first exhaust return bend or second exhaust return bend to open or seal the wave elimination mouth.
4. The fluidic infrared camouflage preventing and protecting exhaust system as set forth in claim 3, wherein: the first wave-absorbing elbow further comprises a return spring and a support; the utility model discloses a wave absorption cover plate, including wave absorption apron, reset spring, support, wave absorption apron, reset spring's one end and wave absorption apron, the support is installed in first exhaust return bend to be close to the wave absorption mouth setting, wave absorption apron rotationally installs in the support, reset spring is connected with the support, reset spring's one end and wave absorption apron's lateral surface butt, reset spring's the other end and support butt to make wave absorption apron be in the normal close state.
5. The fluidic infrared camouflage preventing and protecting exhaust system as set forth in claim 4, wherein: the reset spring comprises an upper cross arm, an upper support arm, a spiral spring, a lower support arm and a lower cross arm; the two ends of the upper cross arm are both connected with one end of an upper support arm, the other end of the upper support arm is connected with a spiral spring, and the spiral spring is connected with the lower cross arm through a lower support arm; the support comprises a base, a shaft seat and a limit stop; the base is installed in the both sides of first exhaust return bend, the axle bed sets up in the base, limit stop is located one side of base, the wave absorption apron has the pivot, wave absorption apron and coil spring are connected with the axle bed through the pivot, go up the lateral surface butt of xarm and wave absorption apron, xarm and base butt down, the lateral surface of wave absorption apron cooperatees with limit stop's spacing face.
6. The jet anti-infrared camouflage protective exhaust system according to claim 3, wherein: the first wave-absorbing elbow further comprises a rotating seat, a gravity hammer, a weight block and a limiting cover plate; the rotating seats are arranged on two sides of the second exhaust elbow and are close to the wave-absorbing port, and the wave-absorbing cover plate comprises a gravity hammer and a sealing cover matched with the wave-absorbing port; the closing cap rotationally installs in rotating the seat, the gravity hammer is connected with the closing cap, the weight piece is installed in the gravity hammer, spacing apron is installed in the top of rotating the seat to the biggest opening angle of restriction ripples apron that disappears.
7. The fluidic infrared camouflage preventing and protecting exhaust system as set forth in claim 1, wherein: the device also comprises a diffusion chamber and a wave-absorbing valve; the diffusion chamber is positioned between the flue gas processor and the dust remover, the ventilation exhaust pipe of engineering or equipment and the exhaust port of the flue gas processor are both connected with the diffusion chamber, and the wave-absorbing valve is arranged between the fan and the exhaust pipeline.
8. The jet anti-infrared camouflage protective exhaust system as recited in claim 1, wherein: the camouflage room and the second wave absorption elbow are further included; the second wave-absorbing elbow is installed at the air inlet end of the flue gas processor, and the flue gas processor, the dust remover, the fan and a part of the exhaust pipeline are all arranged in the camouflage room.
9. The fluidic infrared camouflage preventing and protecting exhaust system as set forth in claim 1, wherein: the device also comprises a flow sensor and a pressure sensor; the flow sensor is arranged at the air inlet of the fan and used for monitoring and metering the air quantity of the discharged gas; the pressure sensor is arranged at the air outlet of the fan and used for monitoring and measuring the air pressure and the air speed of the exhaust gas.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05322489A (en) * | 1992-05-25 | 1993-12-07 | Japan Steel Works Ltd:The | Method and apparatus for avoiding attack of missile on fighting vehicle |
| CN201173146Y (en) * | 2007-12-13 | 2008-12-31 | 范良凯 | Smoke discharging infrared inhibition device |
| CN109655271A (en) * | 2018-12-27 | 2019-04-19 | 南京航空航天大学 | A kind of single pair hypersonic flow is to vortex generating device |
| CN209414274U (en) * | 2018-12-21 | 2019-09-20 | 江西绿城罗茨鼓风机有限公司 | A kind of sound proof box for high pressure blower |
-
2021
- 2021-07-30 CN CN202110872911.3A patent/CN113464504B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05322489A (en) * | 1992-05-25 | 1993-12-07 | Japan Steel Works Ltd:The | Method and apparatus for avoiding attack of missile on fighting vehicle |
| CN201173146Y (en) * | 2007-12-13 | 2008-12-31 | 范良凯 | Smoke discharging infrared inhibition device |
| CN209414274U (en) * | 2018-12-21 | 2019-09-20 | 江西绿城罗茨鼓风机有限公司 | A kind of sound proof box for high pressure blower |
| CN109655271A (en) * | 2018-12-27 | 2019-04-19 | 南京航空航天大学 | A kind of single pair hypersonic flow is to vortex generating device |
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