CN107476853B - Noise-reducing and energy-saving device of turbine expansion generator set - Google Patents
Noise-reducing and energy-saving device of turbine expansion generator set Download PDFInfo
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- CN107476853B CN107476853B CN201710853956.XA CN201710853956A CN107476853B CN 107476853 B CN107476853 B CN 107476853B CN 201710853956 A CN201710853956 A CN 201710853956A CN 107476853 B CN107476853 B CN 107476853B
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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
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/24—Silencing apparatus characterised by method of silencing by using sound-absorbing materials
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Abstract
The utility model provides an economizer that makes an uproar falls of turbo expansion generating set, turbo expansion generating set include chassis, turbo expander, the gear box of being connected with turbo expander and be used for the oily refrigerated oil cooler of lubricating oil in the gear box, the economizer that makes an uproar falls includes muffler and air guide box, and air guide box is corresponding to the right-hand member on chassis, establishes air guide box fan in the air guide box, and the muffler connects, characteristics with turbo expander low-pressure gas outlet: the noise-reducing and energy-saving device also comprises a converging heat conduction box, the converging heat conduction box is supported on the chassis, the air conduction box is connected with the converging heat conduction box, a cavity of the air conduction box is communicated with a cavity of the converging heat conduction box, a cooler is arranged in the cavity of the converging heat conduction box and corresponds to the right end of the silencer, a left cavity opening and a right cavity opening of the converging heat conduction cavity are not closed, a converging cover is fixed on the converging heat conduction box, and the right end of the silencer stretches into the cavity of the converging cover. Energy is saved; the good modularization effect is reflected; the structure is simplified, and the manufacturing cost is low; the noise reduction effect is good, and the influence on the environment is avoided.
Description
Technical Field
The invention belongs to the technical field of expanders, and particularly relates to a noise reduction and energy saving device of a turbine expansion generator set.
Background
The turbine expansion generator set is important equipment for waste heat and waste gas energy recovery, differential pressure type energy recovery and reuse, natural gas liquefaction and gasification energy utilization and gas combined supply waste heat comprehensive utilization power generation. With the unprecedented increase in the importance of energy utilization in various countries around the world, there is an increasing demand for energy recovery power generation facilities to be efficient, rational, compact, and the like.
At present, in the application aspect of compressed air energy storage-decompression expansion power generation, a pressure difference type turbine expansion power generator set is paid much attention and paid attention to, because the pressure difference type turbine expansion power generator set can store and release energy by utilizing the difference of the electricity price at the peak valley of a power supply system, the contradiction between power supply and demand can be balanced, and economic benefits can be reflected.
As is known in the art, turboexpanders generate a large amount of noise, up to and exceeding 90dB, when the compressed air energy is discharged from the expander during operation, thereby causing noise pollution to the surrounding environment. As is also known in the art, in the expansion power generation, compressed air is compressed to release energy so as to drive a generator, and during the pressure reduction and expansion process, the temperature of the compressed air is greatly reduced, usually below zero, and thus if the compressed air is directly discharged, the compressed air affects the small environment (the air below the freezing point is not allowed to be discharged to the outside abroad).
Fig. 3 is a schematic diagram of a noise reduction device of a turbo expansion generator set in the prior art, the turbo expansion generator set includes a chassis 1, a turbo expander 2 disposed on the chassis 1 and located at a left end of the chassis 1, a gear box 3 drivingly connected to the turbo expander 2 corresponding to a left side of the turbo expander 2 and also disposed on the chassis 1, and an oil cooler 4 disposed along the chassis 1 and connected to an oil pipe line of the gear box 3 for cooling lubricating oil in the gear box 3, the oil cooler 4 is provided with at least a pair of cooler fans 41, the noise reduction device includes a muffler 5 and a wind guide box 6, the wind guide box 6 is disposed at a right end of the chassis 1, a wind guide box fan 61 is disposed in the wind guide box 6, and the muffler 5 is disposed between a low pressure gas outlet 21 of the turbo expander 2 and a wind guide cover 62 of the wind guide box 6, wherein: a gas heater 63 for heating the low-temperature air is provided between the air guide box 6 and the air guide cover 62.
The working principle of the structure shown in fig. 3 is as follows: the power drives the turboexpander 2 to work through the gear box 3, high-pressure air is introduced from a turboexpander high-pressure air inlet 22 of the turboexpander 2, low-pressure air enters the silencer 5 from a turboexpander low-pressure air outlet 21, noise is reduced by the silencer 5 and sequentially passes through the flow guide cover 62 and the air guide box 6, the air guide box fan 61 is discharged through an air guide box return port 64 of the air guide box 6, meanwhile, the gas heater 63 and the oil cooler 4 are in working states, low-temperature gas, namely low-temperature air, is heated by the gas heater 63, the temperature of the air from the air guide box return port 64 is increased, the phenomenon that the gas with the freezing point below zero is discharged outside and is damaged is avoided, the oil cooler 4 lubricates high-temperature oil introduced from an oil cooler oil inlet pipe 42 and returns to the gear box 3 through an oil cooler oil return pipe 43.
It can be seen that the above-described configuration shown in fig. 3 can reduce noise (muffled by the muffler), heat low-temperature air (heated by the gas heater 63), and reduce the temperature of the lubricating oil, thereby reducing the temperature rise of the gear case 3. However, the following disadvantages exist: firstly, in the working process of the turboexpansion set, the high-temperature lubricating oil introduced from the oil inlet pipe 42 of the oil cooler is cooled by the working of the cooler fan 41 and is led out through the oil return pipe 43 of the oil cooler to form a circulating cooling loop of the lubricating oil, the working of the cooler fan 41 needs electric energy support to realize the cold energy supply, meanwhile, the low-temperature air temperature below the freezing point (zero) is heated by the gas heater 63 in order to improve, and the working of the gas heater 63 also needs electric energy support to meet the requirement of supplying the heat energy, so that the structural configuration has serious waste of energy, namely the electric energy; secondly, because the oil cooler 4 and the air guide box 6 are respectively of independent structures which are integrated into a whole, the whole structure is loose and not compact, and the volume and the occupied space are large; thirdly, since the oil cooler 4 is provided with the cooler fan 41 and the air guide box 6 is provided with the air guide box fan 61 (i.e., air guide box fan), the facility cost is high.
The technical information of the expanders can be found in large quantities in the published Chinese patent documents, and some examples are CN2388351Y (micro turboexpander), CN2185339Y (gas suspension ceramic low temperature turboexpander), CN200955408Y (turboexpander set), CN201367920Y (turboexpander), CN201190583Y (composite turboexpander), CN201326419Y (turboexpander set), and CN202039906U, and "a gas bearing turboexpander" is proposed. None of the aforementioned patent documents, which are not limiting to the examples, however, gives any useful teaching to remedy the technical problems described above by the applicant.
In view of the above-mentioned prior art, the applicant has made active and advantageous designs, which form the technical solution described below and which have proven to be feasible through computer simulation deductions with security measures taken.
Disclosure of Invention
The invention aims to provide a noise-reducing and energy-saving device of a turbine expansion generator set, which is beneficial to obviously saving energy consumption by taking expanded low-temperature gas as cold energy for cooling lubricating oil and taking high-temperature lubricating oil as heat energy for heating the low-temperature gas, is beneficial to organically combining structural members with an oil cooling function and an air guiding function to embody an ideal modularization effect, is beneficial to simplifying a structure to reduce the manufacturing cost and embody economy and low price, is convenient to ensure a good silencing effect, and ensures that the temperature of the expanded low-temperature gas is increased to avoid influencing the environment.
The noise-reducing and energy-saving device is characterized by further comprising a heat-collecting and heat-conducting box, the converging and heat-conducting box is supported on the chassis at the position corresponding to the left side of the length direction of the air-conducting box, the air-conducting box is connected with the converging and heat-conducting box, the cavity of the air-conducting box is communicated with the heat-conducting cavity of the heat-conducting box, the cooler is arranged in the cavity of the heat-conducting box and corresponds to the cavity of the converging and heat-conducting box, and a cantilever is fixed on the left end of the heat-conducting box and corresponds to the right end of the heat-conducting box, and the heat-conducting box is horizontally arranged on the right end of the heat-conducting box in a heat-conducting state.
In a specific embodiment of the invention, a low-pressure gas outlet flange is formed at the position of the low-pressure gas outlet of the turboexpander, the left end of the silencer is fixedly connected with the low-pressure gas outlet flange, and the right end of the silencer is formed as a horizontal cantilever end and corresponds to the axial center of the confluence cover cavity of the confluence cover.
In another specific embodiment of the present invention, the silencer is composed of an inner sleeve, an outer sleeve and a sound absorption layer, the inner sleeve is located in the outer sleeve, the inner sleeve and the outer sleeve are connected into a whole at the position of the right end face of the sleeve, the left cavity opening of the inner sleeve cavity of the inner sleeve corresponds to and communicates with the low-pressure gas outlet of the turbo expander, sound absorption holes are formed in the inner sleeve wall body of the inner sleeve in a dense state, vent holes are formed in the right end face of the sleeve, the left end face of the outer sleeve is provided with an outer sleeve fixing flange, the outer sleeve fixing flange is fixedly connected with the low-pressure gas outlet flange, the space between the outer wall of the outer sleeve and the inner wall of the converging cover cavity of the converging cover is an outside air supplement cavity, the sound absorption layer is located in a separation cavity between the inner sleeve and the outer sleeve, and the vent holes are communicated with the separation cavity.
In another specific embodiment of the present invention, the sound absorption layer is sound absorption cotton or sound absorption felt.
In another specific embodiment of the present invention, the sound-absorbing cotton is mineral wool, and the sound-absorbing felt is a nonwoven fiber felt.
In yet another embodiment of the present invention, the mineral wool is glass fiber wool.
In a more specific embodiment of the present invention, a box cavity partition plate is fixed at a position of a left cavity opening of an air guiding box cavity of the air guiding box, a fan guide cover mating hole is formed in the box cavity partition plate, the fan guide cover mating hole is communicated with the conflux heat conducting box cavity, the air guiding box fan corresponds to the right end of the box cavity partition plate, a fan guide cover is arranged at a position corresponding to an air guiding box fan air inlet of the air guiding box fan, the fan guide cover is matched with the fan guide cover mating hole, and an air guiding box fan air outlet of the air guiding box fan is communicated with an air guiding box air outlet formed at the rear side of the air guiding box.
In a further embodiment of the invention, there are a pair of the wind box fans, and each wind box fan is provided with a fan operating motor, and the fan operating motor is fixed to a side of the right wind box side wall of the wind box, which is opposite to the wind box cavity.
In a still more specific embodiment of the present invention, a chassis confluent heat conductive box supporting beam is fixed at the right end of the chassis and at a position corresponding to the confluent heat conductive box, confluent heat conductive box supporting legs are provided at the bottom of the confluent heat conductive box, and the confluent heat conductive box is supported on the chassis confluent heat conductive box supporting beam through the confluent heat conductive box supporting legs together with the wind conductive box.
In yet another embodiment of the present invention, a manifold heat conduction box flange is formed on the manifold heat conduction box and around the port on the left side of the manifold heat conduction box corresponding to the chamber of the manifold heat conduction box, and a manifold cover flange is formed around the end face on the right end of the manifold cover, and the manifold cover flange is fixed to the manifold heat conduction box flange by a flange fixing screw.
One of the technical effects of the technical scheme provided by the invention is that the expanded low-temperature gas can be used as cold energy for cooling the high-temperature lubricating oil in the oil cooler, and the high-temperature lubricating oil in the oil cooler is used as heat energy for heating the low-temperature gas, so that good complementarity is embodied, the temperature of the lubricating oil is reduced while the low-temperature gas is heated, a gas heater is not required to be adopted for heating the low-temperature gas like the prior art, and the energy consumption is remarkably saved; secondly, the air guide box and the confluence heat conduction box are organically combined together, so that a good modularization effect is embodied; thirdly, compared with the prior art, the oil cooler and the air guide box do not need to be respectively provided with a fan and form independent box bodies, so that the structure is simplified, the manufacturing cost is reduced, and the economical efficiency is embodied; fourthly, because the silencer self is rational in infrastructure and the right-hand member of silencer stretches into the cover chamber that converges of cover, can demonstrate excellent silencing effect, because the temperature of the low temperature gas after the inflation is improved by the oil cooler again, therefore can avoid influencing the environment.
Drawings
FIG. 1 is a block diagram of an embodiment of the present invention.
FIG. 2 is a schematic diagram of the present invention.
Fig. 3 is a schematic diagram of a noise reduction device of a turbo-expansion power generating set in the prior art.
Detailed Description
In order to clearly understand the technical spirit and the advantages of the present invention, the applicant below describes in detail by way of example, but the description of the example is not intended to limit the technical scope of the present invention, and any equivalent changes made according to the present inventive concept, which are merely in form and not in material, should be considered as the technical scope of the present invention.
In the following description, any concept related to the directions or orientations of up, down, left, right, front and rear is given with respect to the position of fig. 1, and thus it should not be understood as a specific limitation to the technical solution provided by the present invention.
Referring to fig. 1, there are shown a base plate 1 of the turbo-expansion power plant, a turbo-expander 2 disposed at a left end of the base plate 1, a gear box 3 disposed on the base plate 1 corresponding to a left side of the turbo-expander 2 and drivingly connected to the turbo-expander 2, and an oil cooler 4 connected in series, i.e., between an oil cooler inlet pipe 42 and an oil cooler return pipe 43, for cooling lubricating oil in the gear box 3.
Fig. 1 also shows a lubricating oil control device 8 and a secondary expander 9, which are conventional in the prior art, and the aforementioned gearbox 3 is also in driving connection with the secondary expander 9. The lubricating oil control device 8 comprises an oil tank 81, a temperature control valve 82, an oil filter 83 (also called as a double-oil filter), a pressure regulating valve 84, an oil pump 85 and an oil pump motor 86, wherein the oil pump 85 is matched with the oil pump motor 86 and is arranged at the upper part of the oil tank 81, the oil tank 81 is arranged on the chassis 1, the oil pump 85 is driven under the working of the oil pump motor 86, oil is taken from an oil pump oil inlet of the oil pump 85 to the oil tank 81, an oil pump oil outlet of the oil pump 85 divides the lubricating oil into two paths through a pipeline, one path of the lubricating oil is led into an oil cooler oil inlet pipe 42 through the pipeline, the lubricating oil is led into the oil cooler 4 through the oil cooler oil inlet pipe 42, the cooled lubricating oil is led out from an oil cooler oil return pipe 43, the other path of the lubricating oil enters the temperature control valve 82, and the ratio of cold oil to hot oil is automatically adjusted through the temperature control valve 82, so that the oil outlet temperature is kept stable. The lubricating oil comes out of the thermo valve 82 and then enters the oil filter 83, and since the oil filter 83 is a dual oil filter, one path of the lubricating oil returns to the oil tank 81 through a pressure regulating valve 84 (i.e., a bypass pressure regulating valve) connected to a pipeline thereof, the pressure regulating valve 84 automatically adjusts the oil return opening degree to keep the oil pressure of the oil path stable, and the other path of the lubricating oil enters the gear box 3 to supply oil to gears, bearings, and the like for lubrication.
Continuing to refer to fig. 1, a silencer 5 and an air guide box 6 of the structural system of the noise reduction and energy saving device are shown, the air guide box 6 corresponds to the right end of the chassis 1, an air guide box fan 61 is arranged in the air guide box 6, and the silencer 5 is matched and connected with a low-pressure air outlet 21 of a turbo expander 2.
The technical key points of the technical scheme provided by the invention are as follows: the structure system of the noise reduction and energy saving device comprises a confluence heat conduction box 7, the confluence heat conduction box 7 is supported on the chassis 1 at the position corresponding to the left side of the length direction of the air conduction box 6, the air conduction box 6 is jointed with the confluence heat conduction box 7, the air conduction box cavity 65 of the air conduction box 6 is communicated with the confluence heat conduction box cavity 71 of the confluence heat conduction box 7, the cooler 4 is arranged in the confluence heat conduction box cavity 71 and corresponds to the right end of the silencer 5, the confluence heat conduction cavity left opening and the confluence heat conduction box cavity right opening of the confluence heat conduction box cavity 71 are not closed, a confluence cover 72 is fixed on the confluence heat conduction box 7 in a horizontal cantilever state at the position corresponding to the confluence heat conduction box cavity left opening, and the right end of the silencer 5 extends into a confluence cover cavity 721 of the confluence cover 72.
In the present embodiment, the air guide box 6 and the converging heat-conducting box 7 form an integral structure, and the converging cover 72 is formed by a truncated quadrangular prism and a circular tube.
Referring to fig. 2 in conjunction with fig. 1, a low-pressure gas outlet flange 211 is formed at the position of the low-pressure gas outlet 21 of the turboexpander 2, the left end of the silencer 5 is fixedly connected to the low-pressure gas outlet flange 211, and the right end of the silencer 5 is formed as a horizontal cantilever end and corresponds to the axial center of the collecting cover chamber 721 of the collecting cover 72.
The silencer 5 includes inner and outer sleeves 51, 52 and a sound absorbing layer 53, the inner sleeve 51 is located in the outer sleeve 52, the inner sleeve 51 and the outer sleeve 52 are connected to each other at the position of the sleeve right end surface 54, the inner sleeve cavity left opening 511 of the inner sleeve 51 corresponds to and communicates with the low-pressure gas outlet 21 of the turbo expander, the inner sleeve wall of the inner sleeve 51 is densely provided with sound absorbing holes 512, the sleeve right end surface 54 is provided with vent holes 541, the left end surface of the outer sleeve 52 is provided with an outer sleeve fixing flange 521, the outer sleeve fixing flange 521 is fixedly connected with the low-pressure gas outlet flange 211, a space between the outer wall of the outer sleeve 52 and the inner wall of the converging cover cavity 721 of the converging cover 72 is an outside air supplementary cavity 55, the sound absorbing layer 53 is located in the space between the inner and outer sleeves 51, 52, and the vent holes 541 communicate with the space.
As another embodiment, a transition connecting sleeve 56 can be disposed between the low-pressure gas outlet 21 of the turbo expander and the silencer 5, the left end of the transition connecting sleeve 56 has a transition connecting sleeve left flange 561, the right end of the transition connecting sleeve 56 has a transition connecting sleeve right flange 562, the transition connecting sleeve left flange 561 is fixedly connected with the low-pressure gas outlet flange 211 by screws, and the outer sleeve fixing flange 521 is fixedly connected with the transition connecting sleeve right flange 562 by screws.
In the present embodiment, the sound absorbing layer 53 is made of sound absorbing cotton, but a sound absorbing felt or other equivalent material may be used.
The sound-absorbing cotton is mineral wool, the mineral wool is glass fiber cotton, and the sound-absorbing felt is a non-woven fiber felt.
A box cavity partition plate 651 is fixed to a left opening of the air guide box cavity 65 of the air guide box 6, a fan guide cover fitting hole 6511 is formed in the box cavity partition plate 651, the fan guide cover fitting hole 6511 communicates with the conflux heat-transfer box cavity 71, the air guide box fan 61 corresponds to a right end of the box cavity partition plate 651, a fan guide cover 611 is provided at a position corresponding to an air guide box fan inlet of the air guide box fan 61, the fan guide cover 611 engages with the fan guide cover fitting hole 6511, and an air guide box fan outlet of the air guide box fan 61 communicates with an air guide box outlet 66 formed at a rear side of the air guide box 6.
As shown in fig. 1, there are a pair of the air guide box fans 61 (but not limited thereto), and each air guide box fan 61 is provided with a fan operating motor 612, and the fan operating motor 612 is fixed to a side (i.e., an outward side) of the air guide box right side wall of the air guide box 6, which is opposite to the air guide box cavity 65.
A chassis confluence heat conduction box support cross member 11 is fixed to the right end of the chassis 1 at a position corresponding to the confluence heat conduction box 7, a confluence heat conduction box support leg 73 is provided at the bottom of the confluence heat conduction box 7, and the confluence heat conduction box 7 is supported on the chassis confluence heat conduction box support cross member 11 together with the heat conduction box 6 through the confluence heat conduction box support leg 73.
As shown in fig. 2, a manifold heat conduction box flange 74 is formed on the manifold heat conduction box 7 around the port on the left side of the manifold heat conduction box corresponding to the manifold heat conduction box chamber 71, and a manifold cover flange 722 is formed around the end face on the right end of the manifold cover 72, and the manifold cover flange 722 is fixed to the manifold heat conduction box flange 74 by a flange fixing screw 7221.
The gear box 3 drives the turboexpander 2 to work, high-pressure air is introduced from a high-pressure air inlet 22 of the turboexpander 2, low-pressure air, namely low-pressure air or low-temperature air enters the silencer 5 from a low-pressure air outlet 21 of the turboexpander, enters the sound absorption layer 53 through the sound absorption hole 512 and is led out from the vent 541 of the right end surface 54 of the sleeve, meanwhile, outside air, namely outside air, is supplemented by the outside air supplement cavity 55 and passes through the oil cooler 4 together with air passing through the silencer 5, the oil cooler 4 is cooled, high-temperature lubricating oil flowing through the oil cooler 4 is cooled, and meanwhile heat emitted by the oil cooler 4 and coming from the high-temperature lubricating oil is absorbed by low-temperature air to improve the temperature of the low-temperature air. The air with the increased temperature enters the fan guide sleeve 611 of the air guide box fan 61 in the working state from the heat conduction box cavity 71, is led out from the air guide box fan air outlet of the air guide box fan 61 after being led in through the air guide box fan air inlet, and is finally led out (namely discharged) from the air guide box air outlet 66.
In conclusion, the technical scheme provided by the invention overcomes the defects in the prior art, successfully completes the invention task and faithfully realizes the technical effects listed in the technical effect column by the applicant.
Claims (10)
1. A noise reduction and energy saving device of a turbine expansion generator set comprises a chassis (1), a turbine expander (2) arranged at the left end of the chassis (1), an oil cooler (4) which is arranged on the chassis (1) corresponding to the left side of the turbine expander (2) and is in transmission connection with the turbine expander (2), and an oil cooler (4) which is connected between an oil cooler oil inlet pipe (42) and an oil cooler oil return pipe (43) in series and is used for cooling lubricating oil in the gear box (3), the noise reduction and energy saving device comprises a silencer (5) and a wind guide box (6), the wind guide box (6) corresponds to the right end of the chassis (1), a wind guide box fan (61) is arranged in the wind guide box (6), the silencer (5) is matched and connected with a low-pressure air outlet (21) of the turbine expander (2) in a low-pressure air outlet, and is characterized in that the noise reduction and energy saving device also comprises a heat guide box (7), the wind guide box (7) is supported at the position corresponding to the direction of the turbine expander (6) and is connected with the wind guide box (7), and the wind guide box (7) is connected with the wind guide box (6), the cooler (4) is arranged in the confluence heat conduction box cavity (71) and corresponds to the right end of the silencer (5), the confluence heat conduction cavity left cavity opening and the confluence heat conduction box cavity right cavity opening of the confluence heat conduction box cavity (71) are not closed, a confluence cover (72) is fixed on the confluence heat conduction box (7) in a horizontal cantilever state at a position corresponding to the confluence heat conduction box cavity left cavity opening, and the right end of the silencer (5) extends into a confluence cover cavity (721) of the confluence cover (72).
2. The noise reduction and energy saving device of the turbo expansion generator set according to claim 1, wherein a low pressure gas outlet flange (211) is formed at a position of a low pressure gas outlet (21) of the turbo expander (2), a left end of the silencer (5) is fixedly connected to the low pressure gas outlet flange (211), and a right end of the silencer (5) is formed as a horizontal cantilever end and corresponds to an axial center of the confluent cover chamber (721) of the confluent cover (72).
3. The noise reduction and energy saving device of the turboexpander generator set according to claim 2, wherein the silencer (5) is composed of inner and outer sleeves (51, 52) and a sound absorption layer (53), the inner sleeve (51) is located in the outer sleeve (52) and the inner sleeve (51) and the outer sleeve (52) are connected into a whole at the position of the right end surface (54) of the sleeve, the left cavity opening (511) of the inner sleeve (51) corresponds to and communicates with the low-pressure gas outlet (21) of the turboexpander, the silencing holes (512) are formed in the inner sleeve wall of the inner sleeve (51) in a dense state, the vent holes (541) are formed in the right end surface (54) of the sleeve, an outer sleeve fixing flange (521) is formed on the left end surface of the outer sleeve (52), the outer sleeve fixing flange (521) is fixedly connected with the low-pressure gas outlet flange (211), and the space between the outer wall of the outer sleeve (52) and the inner wall of the converging cover cavity (721) of the converging cover (72) is formed as an external air supplement cavity (55), and the space between the sound absorption layer (53) and the inner cavity (51, 52) and the vent holes (541) communicated with the outer sleeve.
4. The noise-reducing and energy-saving device for the turboexpander generator set of claim 3, wherein the sound-absorbing layer (53) is made of sound-absorbing cotton or felt.
5. The noise and energy reduction device of the turbo expansion generator set of claim 4, wherein the sound-absorbing cotton is mineral wool, and the sound-absorbing felt is a non-woven fiber felt.
6. The noise and energy reduction device of the turbo-expansion generator set according to claim 5, wherein the mineral wool is glass fiber wool.
7. The noise reduction and energy saving device of the turboexpander generator set according to claim 1, wherein a box chamber partition plate (651) is fixed at a position of a left opening of the wind guide box chamber (65) of the wind guide box (6), a fan guide cover fitting hole (6511) is formed in the box chamber partition plate (651), the fan guide cover fitting hole (6511) is communicated with the confluent heat conduction box chamber (71), the wind guide box fan (61) corresponds to a right end of the box chamber partition plate (651), a fan guide cover (611) is arranged at a position corresponding to a wind guide box fan inlet of the wind guide box fan (61), the fan guide cover (611) is matched with the fan guide cover fitting hole (6511), and a wind guide box fan outlet of the wind guide box fan (61) is communicated with a wind guide box outlet (66) formed at a rear side of the wind guide box (6).
8. The noise-reducing and energy-saving device for the turboexpander generator set according to claim 7, wherein the number of the wind guide box fans (61) is one, each wind guide box fan (61) is provided with a fan working motor (612), and the fan working motor (612) is fixed with the side of the right side wall of the wind guide box (6) opposite to the wind guide box cavity (65).
9. The noise and energy reduction device of a turboexpansion generator set according to claim 1, characterized in that a chassis heat-transfer box support beam (11) is fixed to the right end of the chassis (1) and at a position corresponding to the heat-transfer box (7), a heat-transfer box support leg (73) is provided at the bottom of the heat-transfer box (7), and the heat-transfer box (7) is supported on the chassis heat-transfer box support beam (11) together with the air-transfer box (6) by the heat-transfer box support leg (73).
10. The noise reduction and energy saving device of the turboexpansion generator set according to claim 1, wherein a conflux heat conduction box flange (74) is formed on the conflux heat conduction box (7) and around the conflux heat conduction box left side opening corresponding to the conflux heat conduction box chamber (71), and a conflux cover flange (722) is formed around the right end face of the conflux cover (72), and the conflux cover flange (722) is fixed with the conflux heat conduction box flange (74) by a flange fixing screw (7221).
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| CN201710853956.XA CN107476853B (en) | 2017-09-20 | 2017-09-20 | Noise-reducing and energy-saving device of turbine expansion generator set |
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| CN201710853956.XA CN107476853B (en) | 2017-09-20 | 2017-09-20 | Noise-reducing and energy-saving device of turbine expansion generator set |
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| CN107476853B true CN107476853B (en) | 2023-03-31 |
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