CN112412804B

CN112412804B - Compound air suction port and air exhaust port silencing assembly and compressor

Info

Publication number: CN112412804B
Application number: CN202011092804.0A
Authority: CN
Inventors: 李业林; 史正良; 贾波; 陈晓晓; 郑慧芸
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2022-11-04
Anticipated expiration: 2040-10-13
Also published as: CN112412804A

Abstract

The invention discloses a composite air suction port and exhaust port silencing component and a compressor, which comprise an air suction pipe component and an exhaust pipe component, wherein a second air suction partition pipe, a first air suction partition pipe, a second air suction porous pipe, a first air suction porous pipe and an air suction external pipe are sequentially arranged in an air suction pipe of an air suction port main body, an air suction sealing ring is arranged between the first air suction porous pipe and the air suction external pipe, an air suction pipe fixing nut is sleeved between the air suction pipe and the air suction external pipe, the exhaust pipe component comprises an exhaust pipe, an exhaust partition pipe is arranged in the exhaust pipe, a first exhaust porous pipe is arranged in the exhaust partition pipe, a first exhaust pipe is connected to the side wall of the exhaust pipe, a second exhaust porous pipe is arranged in the first exhaust pipe of the exhaust pipe, an exhaust external pipe is connected to the upper end of the second exhaust porous pipe, and the exhaust external pipe is connected to the first pipe of the exhaust pipe through the exhaust pipe fixing nut.

Description

Compound air suction port and air exhaust port silencing assembly and compressor

Technical Field

The invention relates to the technical field of compressors, in particular to a composite air suction port and exhaust port silencing assembly and a compressor.

Background

At present, noise is regarded as one of serious pollutions, and the requirement for comfort is gradually increased. As a power source and a heart of household refrigeration equipment and heat pump equipment, the noise problem of a refrigeration compressor and a heat pump compressor becomes an important index for measuring the comprehensive performance of the refrigeration compressor and the heat pump compressor. The noise sources of the refrigeration compressor and the heat pump compressor are composed of air dynamic noise of air intake and exhaust radiation, mechanical noise generated by mechanical moving parts and noise of a driving motor, wherein the mechanical noise generated by the mechanical moving parts needs to be improved by improving the machining precision of parts and matching with the optimization of a precision machine structure, the noise of the driving motor needs to be improved by optimizing the structure of the motor, but the improvement of the air dynamic noise of the air intake and exhaust radiation is generally optimized on a pipeline structure, and the noise reduction effect is not obvious.

The aerodynamic noise of the compressor also accounts for a significant proportion. The intake noise of the compressor is generated by the pressure pulsation of the gas flow in the intake pipe, and the fundamental frequency of the intake noise is the same as the gas pulsation frequency in the intake pipe and is related to the running frequency of the compressor. The higher the operating frequency of the compressor, the higher the speed of rotation, the higher the speed of suction, and the greater the flow pulsation noise generated by the suction gas. The exhaust noise of the compressor is weaker than the intake noise, but is one of the noise sources of the cavity power of the compressor.

The method for improving the suction pulsation noise of the compressor is to attach a damping block around the suction pipe of the compressor, and although the method can reduce the air flow pulsation noise at the suction pipe of the compressor, the noise reduction effect is not obvious.

Disclosure of Invention

The invention aims at the defects in the prior art, and provides a composite air suction port and exhaust port silencing assembly and a compressor, which are used for solving the problems that the air flow pulsation noise of the air suction port and the exhaust port of the existing compressor is large, the noise reduction effect of the existing solving means is not obvious, and the problem that the oil carrying of the gas discharged into a refrigerating or heating system by the existing compressor is serious.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a compound shape induction port and gas vent amortization subassembly, includes aspiration tube subassembly and blast pipe subassembly, the second that packs into in proper order in the induction port main part aspiration tube is inhaled the spacer tube, first spacer tube, the second porous pipe of breathing in, first porous pipe of breathing in and the external pipe of breathing in, first porous pipe of breathing in and breathe in and be equipped with the sealing washer of breathing in between the external pipe, the breathing tube with breathe in and overlap and have breathing tube fixation nut between the external pipe, the blast pipe subassembly includes the blast pipe, the exhaust spacer tube is equipped with in the blast pipe, be equipped with first exhaust porous pipe in the exhaust spacer tube, even have the first siphunculus of blast pipe on the lateral wall of blast pipe, the second porous pipe of exhausting is equipped with in the first siphunculus of blast pipe, even there is the external pipe of exhaust in the upper end of second exhaust porous pipe, and connect through blast pipe fixation nut between the first siphunculus of exhaust external pipe and the blast pipe.

Preferably, the distance between the pipe wall of the second air suction partition pipe and the pipe wall of the air suction pipe is 1-10mm.

Preferably, the distance between the tube wall of the first air suction partition tube and the tube wall of the second air suction partition tube is 1-5mm.

Preferably, a plurality of second air suction partition internal supporting tables are arranged on the inner wall of the second air suction partition, one side of each second air suction partition internal supporting table is provided with an internal supporting boss, the first air suction partition is located in the second air suction partition, one end of the first air suction partition is of a closed structure, the other end of the first air suction partition is provided with a first air suction partition supporting table, the first air suction partition supporting table is pressed at the upper end of the internal supporting boss, and the internal edge and the external edge of the first air suction partition supporting table are provided with circulation holes.

Preferably, the second air suction perforated pipe is positioned in the second air suction partition pipe, one end of the second air suction perforated pipe is connected with the end part of the second air suction partition pipe, the other end of the second air suction perforated pipe is pressed at the upper end of the first air suction partition pipe supporting platform, and a second air suction perforated pipe through hole is formed in the side wall of the second air suction perforated pipe.

Preferably, the distance between the tube wall of the second air suction partition tube and the tube wall of the second air suction porous tube is 1-5mm.

Preferably, one end of the first air suction porous pipe is of a closed structure, the closed end of the first air suction porous pipe is located in the first air suction partition pipe, a first air suction porous pipe through hole is formed in the side wall, close to the closed end, of the first air suction porous pipe, a first air suction porous pipe supporting table is arranged at the other end of the first air suction porous pipe, and the first air suction porous pipe supporting table is pressed at the upper end of the second air suction porous pipe.

Preferably, the exhaust pipe is of a three-way structure and comprises a first exhaust pipe, a second exhaust pipe and a third exhaust pipe three-way pipe, and the inner side wall of the third exhaust pipe three-way pipe is coated with an oil absorption coating.

Preferably, be equipped with the external side through-hole of exhaust partition pipe on the lateral wall of exhaust partition pipe, the assembly of exhaust partition pipe is inside the first siphunculus of blast pipe, the end of blast pipe second siphunculus stretches into the inside of the first siphunculus of blast pipe and is connected with the external side through-hole of exhaust partition pipe.

Preferably, the distance between the first through pipe of the exhaust pipe and the pipe wall of the exhaust partition pipe is 1-10mm.

Preferably, the first exhaust perforated pipe is assembled in the exhaust partition pipe, and a first exhaust perforated pipe tail closed end is arranged at the tail part of the first exhaust perforated pipe to form a first exhaust perforated pipe tail cavity.

Preferably, be equipped with first exhaust porous pipe through-hole on the lateral wall of first exhaust porous pipe, be equipped with first exhaust pipe supporting bench on the lateral wall of first exhaust porous pipe, be equipped with the gas pocket on the first exhaust pipe supporting bench.

Preferably, the distance between the first exhaust multi-hole pipe and the pipe wall of the exhaust partition pipe is 1-5mm.

Preferably, the second exhaust porous pipe is assembled in a third through pipe of the exhaust pipe, the tail part of the second exhaust porous pipe is of a closed structure, and a through hole at the bottom end of the second exhaust porous pipe is arranged on the side wall, close to the closed end, of the second exhaust porous pipe.

Preferably, the surface of the second vented porous pipe is coated with an oleophobic coating.

Preferably, the interval between the second exhaust porous pipe and the side wall of the third pipe of the exhaust pipe is 1-5mm.

Preferably, the compressor comprises the composite suction port and exhaust port silencing assembly.

Compared with the prior art, the invention has the beneficial effects that:

the invention can reduce or eliminate the airflow pulsation noise generated by the air suction port and the air exhaust port of the compressor in the operation process of each frequency band by combining the resistive noise reduction, the reactive noise reduction (interference noise reduction and loss noise reduction) and the pore noise reduction, thereby reducing the operation noise of the whole compressor and improving the comfort of the whole air conditioning system. Simultaneously, set up behind the composite construction that oleophobic coating and oil absorption coating combined together in blast pipe department, can reduce or eliminate the compressor and exhaust and inhale and take the liquid problem, the compressor leads to the condition of pump body wearing and tearing to obtain solving because of lacking oil, and then the reliability and the running life of compressor obtain promoting by a wide margin.

Drawings

FIG. 1 is a three-dimensional view of the whole compressor assembly;

FIG. 2 is an exploded view of a muffling air intake duct;

FIG. 3 is a cross-sectional view of a getter tube;

FIG. 4 is a cross-sectional view of a second inspiratory septum;

FIG. 5 is a cross-sectional view and a top view of a first inspiratory partition;

FIG. 6 is a cross-sectional view of a second getter porous tube;

FIG. 7 is a cross-sectional view of a first inspiratory porous tube;

FIG. 8 is an exploded view of a muffling exhaust;

FIG. 9 is a cross-sectional view of an exhaust pipe;

FIG. 10 is a cross-sectional view of an exhaust separator tube;

FIG. 11 is a three-dimensional view and a cross-sectional view of the first exhaust manifold;

FIG. 12 is a cross-sectional view of a second exhaust porous tube;

FIG. 13 is a partial cross-sectional view of the inner surface coating of the exhaust pipe;

FIG. 14 is a partial cross-sectional view of an outer surface coating of a second exhaust porous tube;

FIG. 15 is a flow path diagram of gas within the compressor package;

FIG. 16 is a schematic view of noise reduction after gas flow through a sound absorbing suction duct;

FIG. 17 is a schematic diagram of noise reduction after gas flows through a muffling exhaust pipe.

In the figure: 400. an intake tube assembly; 400. an intake tube assembly; 410. an air intake duct; 420. a second suction cutoff; 420. a second suction cutoff; 421. a second air suction diaphragm inner supporting table; 421a, an inner support base; 421b, an inner supporting boss; 422. a second outer support table of the suction isolation pipe; 430. a first suction cutoff; 430. a first suction cutoff; 431. a first inspiratory barrier support platform; 432. a toothed flow-through bore; 433. tooth-shaped flow through outer holes; 434. the tail closed end of the first air suction isolation pipe; d5, the outer diameter of the first air suction partition pipe; d6, the diameter of the inner convex part; d7, the diameter of the convex part; 440. a second inspiratory porous tube; a second inspiratory porous tube; 441. a second suction perforated tube support table; 442. a second inspiratory porous tube throughbore; d8, the outer diameter of the second air suction porous pipe; 450. a first inspiratory porous tube; 451. a first inspiratory porous tube support table; 452. the tail closed end of the first air suction porous pipe; 453. a first inspiratory porous tube through hole; d9, the outer diameter of the first air suction porous pipe; 460. a suction seal ring; 470. an air suction external connecting pipe; 480. an air suction pipe fixing nut; 500. an exhaust pipe assembly; 510. an exhaust pipe; 511. a first through pipe of the exhaust pipe; 511-1, and an exhaust pipe integrated fixing nut; 512. a second pipe of the exhaust pipe; 512a, the tail end of the second exhaust pipe; 513. a third tee pipe of the exhaust pipe; 513-1, an oil absorbing coating; 513a, an interface end of an exhaust pipe second-way pipe oil distribution pipe; 513b, an external pipe joint end of the second through pipe of the exhaust pipe; 520. an exhaust partition pipe; 521. an exhaust isolation pipe outer support table; 522. the exhaust partition pipe is externally connected with a side through hole; 530. a first exhaust porous pipe; 531. the tail closed end of the first exhaust porous pipe; 532. a first exhaust perforated pipe support table; 532a, a first exhaust porous pipe first support table; 532b, a first exhaust perforated pipe second support; 532c, a third support table of the first exhaust perforated pipe; 532d, a fourth support platform of the first exhaust porous pipe; 532e, a fifth support table of the first exhaust perforated pipe; 532f, a sixth supporting platform of the first exhaust porous pipe; 533. a cavity at the tail part of the first exhaust porous pipe; 534. a first exhaust manifold first through hole; 535. a first exhaust porous pipe second through hole; 536. a toothed flow through first outer bore; 537. a toothed flow-through second outer bore; 540. a first exhaust seal ring; 550. a second exhaust porous pipe; 550-1, oleophobic coating; 551. a second exhaust porous pipe support; 552. the tail closed end of the second exhaust porous pipe; 553. a through hole at the bottom end of the second exhaust porous pipe; 560. a second exhaust seal ring; 570. an exhaust external pipe; 580. an exhaust pipe fixing nut; 590. the exhaust is externally connected with a copper pipe; d1, the inner diameter of an air suction pipe; d2, the outer diameter of the second air suction isolation pipe; d3, the inner diameter of the second air suction isolation pipe; d4, the inner diameter of the support table in the second air suction isolation pipe; a. the cross section width of the inner support boss; b. the cross section width of the inner support base; d1, the inner diameter of the first through pipe of the exhaust pipe; d2, the outer diameter of the second exhaust pipe; d3, the outer diameter of the exhaust partition pipe; d4, the inner diameter of the exhaust partition pipe; d5, the aperture of the through hole on the external connection side of the exhaust partition pipe; d6, the outer diameter of the first exhaust porous pipe; d7, the inner diameter of a third tee pipe of the exhaust pipe; d8, the outer diameter of the second exhaust porous pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

The compressor is a scroll compressor, but the two kinds of composite suction port silencing components 400 and the composite discharge port silencing component 500 are not limited to be used in the scroll compressor, and can also be used in other refrigeration compressors or heat pump compressors, such as a rotor compressor, a sliding vane compressor (vane compressor), a piston compressor, a swash plate compressor, a variable volume compressor and a centrifugal compressor.

As shown in fig. 1, the scroll compressor includes a suction pipe assembly 400 provided at a suction port of the compressor, and a discharge pipe assembly 500 provided at a discharge port of the compressor.

As shown in fig. 2, the composite suction port silencing assembly 400 mainly comprises a suction pipe 410, a second suction isolation pipe 420, a first suction isolation pipe 430, a second suction porous pipe 440, a first suction porous pipe 450, a suction pipe sealing ring 460, a suction external pipe 470 and a suction pipe fixing nut 480. The assembly sequence of the composite suction port silencing assembly 400 includes a second suction isolation pipe 420, a first suction isolation pipe 430, a second suction porous pipe 440, a first suction porous pipe 450, a suction pipe sealing ring 460, a suction external pipe 470 and a suction pipe fixing nut 480.

As shown in fig. 2, 3 and 4, the second suction spacer 420 is spaced from the wall of the suction pipe 410 by the second suction spacer outer support 422 by a distance of 1-10mm, i.e. a half of the difference between the inner diameter D1 of the suction pipe 410 and the outer diameter D2 of the second suction spacer 420 is 1-10mm, i.e. 1/2 (D1-D2) = 1-10mm, so as to ensure that a noise reduction cavity is formed between the wall of the second suction spacer 420 and the wall of the suction pipe 410, the cavity is filled with air or in a vacuum state, and thus the purpose of reducing or isolating the airflow pulsation noise of the gas sucked into the suction port of the compressor is achieved.

As shown in fig. 2, 4 and 5, the tube walls of the first air-suction partition tube 430 and the second air-suction partition tube 420 are also separated by the outward protruding portion of the first air-suction partition tube supporting platform 431, and the separation distance is 1 to 5mm, that is, a half of the difference between the inner diameter D3 of the second air-suction partition tube 420 and the outer diameter D5 of the first air-suction partition tube is 1 to 5mm, that is, 1/2 (D3-D5) =1 to 5mm, so as to ensure that a cavity capable of allowing the sucked gas to flow smoothly is formed between the tube wall of the first air-suction partition tube 430 and the tube wall of the second air-suction partition tube 420, change the flow path of the gas in a limited space, and further facilitate the realization of multi-resistance noise reduction of the sucked gas.

In order to limit the position where the second suction cutoff 420 is assembled inside the first suction cutoff 430, a plurality of second suction cutoff support stands 421 are provided at intervals on the same plane near the front end portion on the inner tube wall of the second suction cutoff 420, and the area where the second suction cutoff supports 421 are not provided may facilitate the flow of the suction gas.

Further, the second supporting table 421 in the suction muffle is divided into two parts, namely an inner supporting base 421a and an inner supporting boss 421b, wherein the inner supporting boss 421b is arranged at the central part of the inner supporting base 421a, and the cross-sectional width a of the inner supporting boss 421b is not more than 1/5 times of the cross-sectional width b of the inner supporting base 421a, that is, a is not more than 1/5b, so that the arrangement is also favorable for the circulation of suction gas, and further, the silencing and noise reducing effects are improved.

Further, the inner diameter D4 of the second suction muffle inner supporting table 421 of the second suction muffle inner supporting table is in clearance fit with the outer diameter D5 of the first suction muffle, i.e. D4 is smaller than D5.

To prevent the direct flow of the suction gas from flowing out from the bottom of the first suction baffle 430, a closed end 434 of the rear portion of the first suction baffle 430 is provided at the rear portion of the first suction baffle 430 to change the flow direction of the inflow gas, thereby fully utilizing the limited space of the composite suction port muffler assembly 400.

In order to facilitate the introduction of the suction gas into the next chamber, a plurality of tooth-shaped circulation inner holes 432 are formed in the inner convex portion of the first suction baffle supporting platform 431 at the front end of the first suction baffle 430, and a plurality of tooth-shaped circulation outer holes 433 are formed in the outer convex portion of the first suction baffle supporting platform 431.

Further, the diameter D7 of the convex portion of the first suction cutoff support platform 431 is in clearance fit with the outer diameter D3 of the second suction cutoff 420, i.e., D3 < D7.

As shown in fig. 2, 5 and 6, the second air intake perforated pipe 440 compresses and limits the first air intake partition pipe 430, thereby preventing the first air intake partition pipe 430 from moving and avoiding the occurrence of abnormal collision of the air intake ports.

A plurality of second suction manifold through holes 442 are formed at the rear end of the circular tube wall of the second suction manifold 440 to facilitate the gas flow into the next chamber.

Further, the second air suction partition pipe 420 and the pipe wall of the second air suction perforated pipe 440 are separated by the second air suction perforated pipe support platform 441, and the separation distance is 1-5mm, that is, half of the difference between the inner diameter D3 of the second air suction partition pipe 420 and the outer diameter D8 of the second air suction perforated pipe 440 is 1-5mm, that is, 1/2 (D3-D8) = 1-5mm, so as to ensure that a cavity capable of enabling the sucked air to flow smoothly is formed between the pipe wall of the second air suction partition pipe 420 and the pipe wall of the second air suction perforated pipe 440, change the flow path of the air in a limited space, and facilitate the realization of multiple-resistance noise reduction of the sucked air.

As shown in fig. 2, 6 and 7, the rear portion of the first inspiratory porous tube 450 fitted inside the first inspiratory barrier 430 and the second inspiratory porous tube 440 is provided with a first inspiratory porous tube rear closed end 452 to prevent the direct flow of inspiratory gas from the bottom of the first inspiratory porous tube 450.

A plurality of first inspiratory porous tube through holes 453 are formed at a portion of the first inspiratory porous tube 450 near the trailing end to facilitate gas outflow into the next chamber.

Further, the first air-breathing porous pipe 450 and the first air-breathing partition 430 or the second air-breathing porous pipe 440 are separated by the second air-breathing partition inner support 421 and the first air-breathing porous pipe support 451 by a distance of 1 to 5mm, i.e., a half of a difference between the inner diameter D3 of the first air-breathing partition 430 or the outer diameter D8 of the second air-breathing porous pipe 440 and the outer diameter D9 of the first air-breathing porous pipe 450 is 1 to 5mm, i.e., 1/2 (D3-D9) =1 to 5mm or 1/2 (D8-D9) =1 to 5mm.

As shown in fig. 16, the principle of the composite suction port silencer assembly 400 for reducing noise of the sucked air is: the vibration frequency of the airflow pulsation noise before entering the composite suction port silencing assembly 400 is f1, the noise reduction flow sequence of the airflow in the composite suction port silencing assembly 400 is that the airflow firstly enters the first suction porous pipe 450 through the suction external connecting pipe 470, and is discharged into a first cavity formed between the first suction porous pipe 450 and the first suction partition pipe 430 from a plurality of first suction porous pipe through holes 453 on the first suction porous pipe 450, so as to firstly weaken the sound energy and frequency of the pulsation noise generated by the sucked air; then the gas flows through the tooth-shaped flow through inner hole 432 of the first air suction partition pipe 430 and flows into a second cavity formed between the second air suction porous pipe 440 and the first air suction porous pipe 450, and the sound energy and the frequency of the pulse noise generated by the air flow are weakened for the second time; the gas in the second cavity enters a third cavity formed between the second air suction porous pipe 440 and the first air suction isolation pipe 430 through the plurality of second air suction porous pipe through holes 442 on the second air suction porous pipe 440, and the sound energy and the frequency of the pulsation noise generated by the air flow are weakened for the third time; the gas from the third cavity flows into the fourth cavity formed between the second suction pipe 420 and the first suction pipe 430 from the gaps between the tooth-shaped flow outer holes 433 of the first suction pipe support platform 431 and the second suction pipe support platforms 421, the sound energy and frequency of the pulsating noise generated by the gas flow are weakened for the fourth time, the pulsation frequency of the noise of the suction gas is f2, the sound energy and the vibration frequency of the pulsating noise generated by the gas flow at the suction port are weakened for a plurality of times by applying the principles of resistive silencing, reactive silencing, dilatation silencing and pore silencing, so that the noise of the whole compressor is greatly reduced.

As shown in fig. 15, the gas after noise reduction processing by the composite suction port silencing assembly 400 enters the pump body of the compressor for compression, and is discharged into the silencing cavity of the silencing cover through the exhaust port on the static disc 920 in the pump body assembly 900, at this time, the frequency of the gas pulsation noise is f3, and then enters the cavity of the whole compressor, or is directly discharged into the cavity of the whole compressor through the exhaust port on the static disc 920 in the pump body assembly 900, the silencing cover and the cavity of the shell both have a certain attenuation effect on the sound energy and the vibration frequency of the gas flow pulsation noise generated by the compressed gas, at this time, the gas pulsation noise is f4, and here, the principles of resistive silencing and decompression, expansion and silencing are applied, and the noise generated by the whole compressor can be further attenuated.

As shown in fig. 8, the composite exhaust port muffler assembly 500 mainly comprises an exhaust pipe 510, an exhaust partition 520, a first exhaust porous pipe 530, a second exhaust porous pipe 550, a second exhaust gasket 560, an exhaust external pipe 570, an exhaust pipe fixing nut 580, and an exhaust external copper pipe 590. Firstly, an exhaust partition pipe 520 is installed in an exhaust pipe first through pipe 511 of an exhaust pipe 510, then an exhaust pipe second through pipe 512 and an exhaust pipe third through pipe 513 are welded and fixed in sequence, then a first exhaust porous pipe 530 and a first exhaust sealing ring 540 are installed in the exhaust partition pipe 520 in sequence, and finally a second exhaust porous pipe 550, a second exhaust sealing ring 560, an exhaust external connecting pipe 570, an exhaust pipe fixing nut 580 and an exhaust external connecting copper pipe 590 are installed in the exhaust pipe third through pipe 513 in sequence.

As shown in fig. 9, the exhaust pipe 510 is a three-way structure and includes a compressor exhaust port, an oil-gas separation backflow port and a system port, the compressor exhaust port is provided with an exhaust pipe integrated fixing nut 511-1, the inner side wall of the exhaust pipe third pipe 513 of the exhaust pipe 510 is coated with an oil absorption coating, and the refrigerant oil in the refrigerant is adsorbed on the pipe wall of the exhaust pipe third pipe 513, so that the refrigerant and the refrigerant oil are separated.

As shown in fig. 8, 9, and 10, the exhaust-pipe second-pipe end 512a of the exhaust-pipe second-pipe 512 extends into the exhaust-pipe first-pipe 511, and is connected to the exhaust-pipe outside-enclosure-side through hole 522 of the sidewall of the exhaust-pipe partition 520 fitted in the exhaust-pipe first-pipe 511 of the exhaust pipe 510.

Further, the outer diameter d2 of the exhaust pipe second through pipe is ensured to be consistent with the aperture d5 of the exhaust partition pipe external side through hole, namely d2= d5.

The first exhaust pipe 511 of the exhaust pipe 510 and the pipe wall of the exhaust partition 520 are separated by an outer exhaust partition support 521 by a distance of 1-10mm, i.e. half of the difference between the inner diameter d1 of the first exhaust pipe 511 and the outer diameter d3 of the exhaust partition 520 is 1-10mm, i.e. 1/2 (d 1-d 3) = 1-10mm, so as to ensure that a noise reduction cavity is formed between the pipe wall of the exhaust partition 520 and the pipe wall of the exhaust pipe 510, which are assembled inside the first exhaust pipe 511 of the exhaust pipe 510, and the interior of the noise reduction cavity is in an air-filled state or a vacuum state, thereby achieving the purpose of reducing or isolating the airflow pulsation noise of the gas discharged from the exhaust port of the compressor.

The first exhaust perforated pipe tail closed end 531 is arranged near the tail of the first exhaust perforated pipe 530, and after the first exhaust perforated pipe 530 is assembled on the exhaust partition pipe 520, a first exhaust perforated pipe tail cavity 533 is formed at the bottom, and the inside of the first exhaust perforated pipe tail cavity 533 is also in a state of being filled with air or in a state of being vacuum, so that the purpose of reducing or isolating the airflow pulsation noise of the exhaust gas of the exhaust port of the compressor is achieved.

Further, a first exhaust multi-hole pipe support base 532 is provided on a pipe body of the first exhaust multi-hole pipe 530, and the first exhaust multi-hole pipe support base 532 is a first exhaust multi-hole pipe first support base 532a, a first exhaust multi-hole pipe second support base 532b, a first exhaust multi-hole pipe third support base 532, a first exhaust multi-hole pipe fourth support base 532d, a first exhaust multi-hole pipe fifth support base 532e, and a first exhaust multi-hole pipe sixth support base 532f, respectively.

A plurality of toothed circulation first outer holes 536 are formed in the fifth support base 532e of the first exhaust porous pipe, and a plurality of toothed circulation first outer holes 537 are formed in the sixth support base 532f of the first exhaust porous pipe, so that the discharged high-pressure gas can be introduced into the next chamber.

A plurality of first exhaust porous pipe first through holes 534 are formed in the pipe wall of the first exhaust porous pipe 530 between the first exhaust porous pipe second support base 532b and the first exhaust porous pipe fifth support base 532e, and a plurality of first exhaust porous pipe second through holes 535 are formed in the pipe wall of the first exhaust porous pipe 530 between the first exhaust porous pipe third support base 532c and the first exhaust porous pipe sixth support base 532f, so that the discharged high-pressure gas can be introduced into the next chamber.

The first exhaust perforated pipe 530 and the pipe wall of the exhaust partition pipe 520 are separated by the first exhaust perforated pipe support platform 532, the separation distance is 1-5mm, namely, half of the difference between the inner diameter d4 of the exhaust partition pipe 520 and the outer diameter d6 of the first exhaust perforated pipe 530 is 1-5mm, namely 1/2 (d 4-d 6) = 1-5mm, so as to ensure that two cavities which can enable the exhausted high-pressure gas to flow smoothly are formed between the pipe wall of the exhaust partition pipe 520 and the pipe wall of the first exhaust perforated pipe 530, the flow path of the gas can be changed in a limited space, the implementation of multi-resistance noise reduction and noise reduction of the sucked gas is facilitated, and the two exhaust cavities are provided, so that the high-pressure gas is exhausted.

The second exhaust porous pipe 550 is provided with a second exhaust porous pipe tail closed end 552 at the tail part thereof, which is assembled in the exhaust pipe third tee pipe 513 of the exhaust pipe 510, and a plurality of second exhaust porous pipe bottom end through holes 553 are formed on one half surface of the pipe wall near the tail part area of the second exhaust porous pipe 550, and the other half part is not processed.

Further, during the assembly process, the surface which is not processed is arranged opposite to the exhaust port of the exhaust pipe second pipe 512, so that the exhausted high-pressure gas does not directly enter the second exhaust porous pipe 550 from the second exhaust porous pipe bottom end through hole 553, but enters the second exhaust porous pipe 550 from the second exhaust porous pipe bottom end through hole 553 after the exhaust pipe third pipe 513 of the exhaust pipe 510 is filled, the exhaust path is extended, and the noise reduction effect of the composite exhaust port silencing assembly 500 is improved.

The second porous exhaust pipe 550 and the third exhaust pipe branch 513 of the exhaust pipe 510 are separated by the second porous exhaust pipe support 551 of the second porous exhaust pipe 550 by a distance of 1 to 5mm, i.e., a half of a difference between an inner diameter d7 of the third exhaust pipe branch 513 and an outer diameter d8 of the second porous exhaust pipe 550 is 1 to 5mm, i.e., 1/2 (d 7-d 8) =1 to 5mm.

The surface of the second exhaust porous pipe 550 is also coated with the oleophobic coating, so that the refrigeration oil in the refrigerant is adsorbed on the pipe wall of the second exhaust porous pipe 550, and the separation of the refrigerant and the refrigeration oil is facilitated.

To reduce the operating noise of a refrigeration or heat pump compressor, at least one of the suction and discharge ports of the compressor is fitted with at least one of a composite suction muffler assembly 400 and/or a composite discharge muffler assembly 500.

Further, the compressor is one of a scroll compressor, a rotor compressor, a vane compressor, a piston compressor, a swash plate compressor, a positive displacement compressor and a centrifugal compressor.

As shown in fig. 17, the principle of noise reduction of the exhaust gas by the composite exhaust port silencer assembly 500 is as follows: the gas with the pulsation noise vibration frequency f4 in the compressor shell is changed into f5 after entering the front end of the exhaust port, the noise reduction flow sequence of the gas flow in the composite exhaust port silencing assembly 500 is that the gas flow is firstly exhausted into the first exhaust porous pipe 530 from the exhaust port of the compressor, the gas flow is blocked by the closed end 531 at the tail part of the first exhaust porous pipe 530 at the bottom of the first exhaust porous pipe 530, and the gas flow flows into two first cavities with porous pipe through holes formed between the exhaust baffle pipe 520 and the first exhaust porous pipe 530 from the first exhaust porous pipe first through hole 534 and the first exhaust porous pipe second through hole 535 of the first exhaust porous pipe 530, so that the sound energy and the frequency of the pulsation noise generated by the exhaust body are firstly reduced; then, the gas enters a first cavity with a plurality of perforated pipe through holes formed between the exhaust baffle pipe 520 and the first exhaust perforated pipe 530 from the plurality of tooth-shaped flow first outer holes 536 and the plurality of tooth-shaped flow first outer holes 537 on the first exhaust perforated pipe 530, which is a second reduction of the flow pulsation noise generated by the exhaust gas; the gas discharged from the first cavity of the through hole of the porous pipe enters the third branch pipe 513 from the second branch pipe 512 of the exhaust pipe 510, which is the third reduction of the airflow pulsation noise generated by the discharged gas; after the gas enters and fills the third exhaust pipe tee 513 of the exhaust pipe 510, the gas enters the second exhaust porous pipe 550 from the through hole 553 at the bottom end of the second exhaust porous pipe 550, which is the fourth reduction of the airflow pulsation noise generated by the exhaust gas, at this time, the noise pulsation frequency of the exhaust gas is f6, all of the above mentioned principles are applied to resistive silencing, resistance silencing (interference silencing), capacity expansion silencing and pore silencing, and the sound energy and vibration frequency of the airflow pulsation noise generated at the air suction port are weakened for many times, so that the noise of the whole compressor is greatly reduced.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A composite air suction port and exhaust port silencing component is characterized in that: including inspiratory tube subassembly and blast pipe subassembly, the second that packs into in proper order in the inspiratory tube of induction port main part is breathed in the spacer tube, first spacer tube, the second porous tube of breathing in, first porous tube of breathing in and the external pipe of breathing in, the first porous tube of breathing in and breathe in and be equipped with the sealing washer of breathing in between the external pipe, the breathing tube with breathe in and overlap and have breathing tube fixation nut between the external pipe, the blast pipe subassembly includes the blast pipe, the exhaust spacer tube is equipped with in the blast pipe, be equipped with first exhaust porous tube in the exhaust spacer tube, even have the first siphunculus of blast pipe on the lateral wall of blast pipe, the second porous tube of exhausting is equipped with in the first siphunculus of blast pipe, even there is the external pipe of exhausting in the upper end of second exhaust porous tube, and the external pipe of exhausting is connected through blast pipe fixation nut between the first siphunculus of blast pipe.

2. The composite suction and discharge port muffling assembly of claim 1 wherein: the distance between the pipe wall of the second air suction partition pipe and the pipe wall of the air suction pipe is 1-10mm.

3. A composite suction and exhaust port silencer assembly as claimed in claim 1, wherein: the distance between the tube wall of the first air suction isolation tube and the tube wall of the second air suction isolation tube is 1-5mm.

4. A composite suction and exhaust port silencer assembly as claimed in claim 1, wherein: the inner wall of the second air suction partition pipe is provided with a plurality of second air suction partition pipe inner supporting tables, one side of each second air suction partition pipe inner supporting table is provided with an inner supporting boss, the first air suction partition pipe is located in the second air suction partition pipe, one end of the first air suction partition pipe is of a closed structure, the other end of the first air suction partition pipe is provided with a first air suction partition pipe supporting table, the first air suction partition pipe supporting table is pressed at the upper end of the inner supporting boss, and the inner edge and the outer edge of the first air suction partition pipe supporting table are both provided with circulation holes.

5. The composite suction and exhaust port acoustic muffler assembly as set forth in claim 4, wherein: the second air suction perforated pipe is positioned in the second air suction partition pipe, one end of the second air suction perforated pipe is connected with the end part of the second air suction partition pipe, the other end of the second air suction perforated pipe is pressed at the upper end of the first air suction partition pipe supporting platform, and a second air suction perforated pipe through hole is formed in the side wall of the second air suction perforated pipe.

6. The composite suction and discharge port silencer assembly of claim 5, wherein: the distance between the tube wall of the second air suction partition tube and the tube wall of the second air suction porous tube is 1-5mm.

7. A composite suction and exhaust port silencer assembly as claimed in claim 1, wherein: one end of the first air suction porous pipe is of a closed structure, the closed end of the first air suction porous pipe is positioned in the first air suction partition pipe, a first air suction porous pipe through hole is formed in the side wall, close to the closed end, of the first air suction porous pipe, a first air suction porous pipe support platform is arranged at the other end of the first air suction porous pipe, and the first air suction porous pipe support platform is pressed at the upper end of the second air suction porous pipe.

8. The composite suction and discharge port muffling assembly of claim 1 wherein: the exhaust pipe is of a three-way structure and comprises a first exhaust pipe through pipe, a second exhaust pipe through pipe and a third exhaust pipe through pipe, and the inner side wall of the third exhaust pipe through pipe is coated with an oil absorption coating.

9. The composite suction and exhaust port acoustic muffler assembly of claim 8, wherein: the lateral wall of the exhaust partition pipe is provided with an external side through hole of the exhaust partition pipe, the exhaust partition pipe is assembled inside the first through pipe of the exhaust pipe, and the tail end of the second through pipe of the exhaust pipe extends into the inside of the first through pipe of the exhaust pipe and is connected with the external side through hole of the exhaust partition pipe.

10. The composite suction and discharge port silencer assembly of claim 8, wherein: the distance between the first through pipe of the exhaust pipe and the pipe wall of the exhaust partition pipe is 1-10mm.

11. The composite suction and exhaust port acoustic muffler assembly of claim 8, wherein: the first exhaust porous pipe is assembled in the exhaust partition pipe, and a first exhaust porous pipe tail closed end is arranged at the tail part of the first exhaust porous pipe to form a first exhaust porous pipe tail cavity.

12. A composite suction and discharge port muffling assembly according to claim 11, wherein: and a first exhaust porous pipe support platform is arranged on the pipe body of the first exhaust porous pipe.

13. The composite suction and discharge port silencer assembly of claim 12, wherein: the distance between the first exhaust perforated pipe and the pipe wall of the exhaust partition pipe is 1-5mm.

14. The composite suction and exhaust port acoustic muffler assembly as set forth in claim 12, wherein: the second exhaust porous pipe is assembled in a third through pipe of the exhaust pipe, the tail part of the second exhaust porous pipe is of a closed structure, and a through hole at the bottom end of the second exhaust porous pipe is formed in the side wall, close to the closed end, of the second exhaust porous pipe.

15. The composite suction and discharge port silencer assembly of claim 8, wherein: the surface of the second exhaust porous pipe is coated with the oleophobic coating.

16. The composite suction and exhaust port acoustic muffler assembly of claim 8, wherein: the interval between the second exhaust porous pipe and the side wall of the third tee pipe of the exhaust pipe is 1-5mm.

17. A compressor, characterized by: a composite suction and exhaust port acoustic abatement assembly according to any one of claims 1 to 16.