CN105649994B - Silencer, refrigerating system and air conditioning equipment - Google Patents
Silencer, refrigerating system and air conditioning equipment Download PDFInfo
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- CN105649994B CN105649994B CN201610100884.7A CN201610100884A CN105649994B CN 105649994 B CN105649994 B CN 105649994B CN 201610100884 A CN201610100884 A CN 201610100884A CN 105649994 B CN105649994 B CN 105649994B
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- muffler
- refrigeration system
- oil return
- silencing cavity
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- 230000003584 silencer Effects 0.000 title claims abstract description 31
- 238000004378 air conditioning Methods 0.000 title claims abstract description 23
- 238000005057 refrigeration Methods 0.000 claims abstract description 64
- 230000030279 gene silencing Effects 0.000 claims abstract description 49
- 239000003507 refrigerant Substances 0.000 claims abstract description 37
- 238000005192 partition Methods 0.000 claims abstract description 34
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 47
- 239000010687 lubricating oil Substances 0.000 claims description 34
- 230000007246 mechanism Effects 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 239000000314 lubricant Substances 0.000 claims 2
- 230000000694 effects Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/06—Silencing
- F04C29/065—Noise dampening volumes, e.g. muffler chambers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
- F25B31/002—Lubrication
- F25B31/004—Lubrication oil recirculating arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compressor (AREA)
Abstract
The invention relates to a silencer, a refrigerating system and air conditioning equipment, and relates to the technical field of silencing. The main technical scheme adopted is as follows: a muffler for eliminating low frequency noise in a refrigeration system; the silencer comprises a shell, a partition plate, an air inlet pipe and an air outlet pipe. The partition plate is arranged in the shell and divides an inner cavity of the shell into a first silencing cavity and a second silencing cavity; a plurality of flow guide holes are formed in the partition plate. The air inlet pipe is communicated with the first silencing cavity and used for conveying the refrigerant air flow into the first silencing cavity. The air outlet pipe is communicated with the second silencing cavity and used for discharging the refrigerant airflow in the second silencing cavity. A refrigerating system comprises the silencer. An air conditioning equipment includes above-mentioned refrigerating system. The invention is mainly used for improving the frequency band applicability of the low-frequency noise which can be eliminated, so that the frequency band for eliminating the low-frequency noise is wider, and the influence of the low-frequency noise in a refrigeration system and air-conditioning equipment on the environment is improved.
Description
Technical Field
The invention relates to the technical field of noise elimination, in particular to a silencer, a refrigerating system and air conditioning equipment.
Background
The air conditioning equipment adjusts the indoor temperature through the operation of a refrigeration system on the air conditioning equipment, thereby providing a comfortable environment for users. However, the operation of the refrigeration system can bring noise pollution to users; generally, noise generation sources of a refrigeration system are mainly the following:
(1) in a common household refrigeration system, the pressure of a refrigerant discharged by a compressor flows and exists in a pulsating mode, and the refrigerant can generate noise similar to airflow in the flowing process in a long and narrow pipeline;
(2) under the action of the pressure of the pulsating refrigerant, the exhaust valve plate is opened and closed at high speed and high frequency, and mechanical noise is generated due to the action of the exhaust valve plate; the rotor and the sliding blade of the compressor in the cylinder of the compressor also periodically run, so that mechanical noise can be generated by the movement between the parts;
(3) the electrical parts on the compressor also generate electromagnetic noise of a certain nature. Among them, the most troubling to designers are the low frequency noise generated by the refrigeration system (the noise like airflow generated by the refrigerant flowing in the long and narrow pipe as described above; and the low frequency noise caused by mechanical noise), which is very unpleasant and unacceptable to users. The low-frequency noise has strong penetrating power and is not easy to attenuate. The long-term influence of low-frequency noise can cause people to be easily worried or even lose intelligence, and seriously hurt body organs and the like.
Current refrigeration systems are basically equipped with mufflers. The existing silencer applied to a household air conditioning system comprises a silencing cavity, an air inlet pipe and an air outlet pipe, wherein the air inlet pipe and the air outlet pipe are communicated with the silencing cavity. The silencer mainly utilizes the silencing cavity with a certain length to reflect sound waves back and forth so as to convert the sound waves into mechanical energy and heat energy to be dissipated, has a relatively simple structure and a single function, and is mainly used for reducing low-frequency noise generated in a refrigerating system. In addition, in order to further reduce the harmful low frequency noise in the refrigeration system, the prior art has generally optimized to install a muffler near the discharge end or the suction end of the compressor in the refrigeration system.
However, the above conventional muffler has at least the following disadvantages:
(1) the adaptive frequency band for eliminating the low-frequency noise is narrow, and part of the low-frequency noise cannot be completely eliminated.
(2) The separation capacity of the lubricating oil is limited, the lubricating oil is flushed into the heat exchanger by high-pressure airflow, and the lubricating oil is separated and then attached to the inner surface of the heat exchanger to form a layer of oil film along with the reduction of the temperature of the heat exchanger, so that the heat exchange efficiency of the heat exchanger is influenced.
Disclosure of Invention
In view of the above, the present invention provides a muffler, a refrigeration system and an air conditioning device, and mainly aims to improve the frequency band applicability of low-frequency noise that can be eliminated, so that the frequency band for eliminating the low-frequency noise is wider, and the influence of the low-frequency noise in the refrigeration system and the air conditioning device on the environment is improved.
In order to achieve the purpose, the invention mainly provides the following technical scheme:
in one aspect, embodiments of the present invention provide a muffler for use in a refrigeration system to eliminate noise in the refrigeration system; wherein, the silencer includes:
a housing;
the baffle is arranged in the shell and divides the inner cavity of the shell into a first silencing cavity and a second silencing cavity; wherein, a plurality of flow guide holes are arranged on the clapboard;
the air inlet pipe is communicated with the first silencing cavity and is used for conveying refrigerant airflow into the first silencing cavity;
and the air outlet pipe is communicated with the second silencing cavity and is used for discharging the refrigerant airflow in the second silencing cavity.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
Preferably, the air inlet pipe sequentially penetrates through the bottom end of the shell, the second silencing cavity and the partition plate to enter the first silencing cavity, so that an air outlet of the air inlet pipe is communicated with the first silencing cavity.
Preferably, the air outlet pipe sequentially penetrates through the top end of the shell, the first silencing cavity and the partition plate to enter the second silencing cavity, so that an air inlet of the air outlet pipe is communicated with the second silencing cavity.
Preferably, the air outlet end surface of the air inlet pipe has a slope forming a set angle alpha with the horizontal plane; wherein, the alpha is more than 0 degree and less than 90 degrees.
Preferably, the housing comprises:
a first housing having a first end and a second end; the first end of the first shell is provided with a first interface used for connecting the air outlet pipe; the second end of the first shell is arranged in an open mode;
a second housing having a first end and a second end; the first end of the second shell is arranged in an open mode, and the second end of the second shell is provided with a second connecting port used for being connected with the air inlet pipe;
wherein the second end of the first housing is connected to the first end of the second housing; and the first end of the first shell is the top end of the shell, and the second end of the second shell is the bottom end of the shell.
Preferably, an oil return port is formed in the bottom end of the housing, and is used for returning lubricating oil in the refrigerant airflow to the refrigeration system.
Preferably, the muffler further comprises an oil return adjusting mechanism, wherein the oil return adjusting mechanism is connected with the oil return port and used for adjusting oil return parameters of lubricating oil according to the requirement of the refrigeration system.
Preferably, the oil return adjusting mechanism comprises an oil return pipe, one end of the oil return pipe is connected with an oil return port at the bottom end of the shell, and the other end of the oil return pipe is used for being connected with a refrigerating system.
Preferably, the material of the partition plate is stainless steel; the flow guide holes are uniformly distributed on the partition plate to form a spoiler.
Preferably, the included angle between the axis of the diversion hole and the axis of the clapboard is 0-5 degrees.
In another aspect, embodiments of the present invention also provide a refrigeration system, including:
a compressor having a discharge port and a suction port;
a heat exchanger;
a muffler as claimed in any one of the above;
the air inlet of the air inlet pipe on the silencer is communicated with the air outlet of the compressor;
the air outlet of the air outlet pipe on the silencer is communicated with one end of the heat exchanger; the other end of the heat exchanger is communicated with the air suction port of the compressor.
Preferably, the refrigeration system further comprises a lubricating oil storage device connected with the compressor for supplying lubricating oil to the compressor; when the silencer is provided with an oil return opening, the oil return opening is communicated with the lubricating oil storage device.
In another aspect, an embodiment of the present invention further provides an air conditioning apparatus, which includes the above-mentioned refrigeration system.
By means of the technical scheme, the silencer, the refrigerating system and the air conditioning equipment at least have the following beneficial effects:
the silencer provided by the embodiment of the invention divides the inner cavity of the shell into the first silencing cavity and the second silencing cavity by arranging the partition plate with the flow guide hole in the shell, so that the pulsating air flow of the compressor enters the first silencing cavity from the air inlet pipe, an air flow column is formed when the pulsating refrigerant air flow flows through the flow guide hole in the partition plate, the air flow column and the air in the second silencing cavity act to form elastic resonance, and when the low-frequency noise frequency of the pulsating refrigerant air flow is the same as the inherent frequency of a resonance system, the air flow column in the flow guide hole can resonate and violently rub against the hole wall of the flow guide hole, so that the aim of eliminating the low-frequency noise is fulfilled. Compared with the prior art, the silencer provided by the embodiment of the invention not only utilizes the silencing cavity to reflect sound waves back and forth so as to convert low-frequency noise sound waves of partial frequency bands into mechanical energy and dissipate heat energy, but also utilizes elastic resonance formed by the airflow column and air to further achieve the purpose of eliminating low-frequency noise. Therefore, the muffler provided by the embodiment of the invention improves the frequency band applicability of low-frequency noise which can be eliminated, and the frequency band for eliminating the low-frequency noise is wider, so that the influence of the low-frequency noise in a refrigeration system on the environment is improved.
Furthermore, according to the muffler provided by the embodiment of the present invention, the end surface of the air outlet of the air inlet pipe is set to have a slope of a set angle, so that when the pulsating refrigerant airflow on the refrigeration system flows out from the air outlet of the air inlet pipe, the direction of the end surface of the air outlet is changed, and the low frequency noise sound wave generated by the pulsating refrigerant airflow is reflected back to the direction of the sound source, thereby further achieving the purpose of eliminating the low frequency noise.
Furthermore, the muffler provided by the embodiment of the invention can greatly change the speed and the direction of the refrigerant airflow, so that the lubricating oil particles in the refrigerant airflow are separated and layered under the action of gravity; the separated lubricating oil is accumulated to the inner bottom end of the muffler shell, and finally returns to the low-pressure end of the refrigeration system through an oil return port at the bottom end of the shell, and then flows back to a lubricating device of the refrigeration system for recycling. Therefore, the muffler provided by the embodiment of the invention can avoid the phenomenon that lubricating oil forms an oil film on the inner surface of the heat exchanger in the refrigeration system, improve the heat exchange effect of the heat exchanger in the refrigeration system, supplement the lubricating oil into the refrigeration system in time and ensure the operation reliability of the refrigeration system.
In addition, the refrigeration system and the air conditioning equipment provided by the embodiment of the invention both include the muffler, so that the refrigeration system and the air conditioning equipment provided by the embodiment of the invention both have the beneficial effects, and are not repeated herein.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a schematic cross-sectional view of a muffler according to an embodiment of the present invention;
FIG. 2 is an exploded view of a muffler according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a muffler according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a second housing according to an embodiment of the present invention.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the predetermined object, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Example 1
As shown in fig. 1, 2 and 3, the present embodiment provides a muffler for use in a refrigeration system to eliminate low frequency noise in the refrigeration system. Specifically, the muffler includes a housing 1, a partition 2, an inlet pipe 3, and an outlet pipe 4. Wherein, the baffle 2 is arranged in the shell 1 and divides the inner cavity of the shell 1 into a first silencing cavity 15 and a second silencing cavity 14. The partition board 2 is further provided with a plurality of diversion holes 21 so that the refrigerant airflow in the first muffling cavity 15 flows into the second muffling cavity 14 through the diversion holes 21. The air inlet pipe 3 is communicated with the first muffling cavity 15 and is used for conveying refrigerant airflow discharged by a compressor in the refrigerating system into the first muffling cavity 15. The air outlet pipe 4 is communicated with the second muffling cavity 14 and is used for discharging the refrigerant air flow in the second muffling cavity 14.
The pulsating refrigerant airflow in the refrigeration system is conveyed into the first silencing cavity 15 through the air inlet pipe 3; when the low-frequency noise frequency generated by the pulsating refrigerant airflow is the same as the natural frequency of the resonance system, the airflow column in the flow guide hole 21 can resonate and violently rub the hole wall of the flow guide hole 21 (the friction can eliminate sound energy), thereby achieving the purpose of eliminating the low-frequency noise.
Therefore, the silencer provided by the embodiment reflects sound waves back and forth by utilizing the silencing cavity, and converts low-frequency noise sound waves of partial frequency bands into mechanical energy and heat energy to be dissipated; the key difference from the prior art is that: the silencer of this embodiment also sets up a baffle 2 that has water conservancy diversion hole 21 in the casing, forms the air current column when making the pulsation refrigerant air current flow through water conservancy diversion hole 21, and then the air current column takes place the effect with the air in second muffling chamber 14, forms elastic resonance, finally makes the air current column can take place to resonate and take place violent friction with the pore wall of water conservancy diversion hole 21 to reach the purpose of further eliminating the low frequency noise. Therefore, compared with the prior art, the silencer provided by the embodiment improves the frequency band applicability of the low-frequency noise capable of being eliminated, the frequency band for eliminating the low-frequency noise is wider, and therefore the influence of the low-frequency noise in the refrigeration system on the environment is improved.
Example 2
As shown in fig. 1, preferably, the present embodiment provides a muffler, compared to embodiment 1, in the present embodiment, an air inlet pipe 3 sequentially passes through the bottom end of the housing, the second muffling chamber 14 and the partition plate 2 to enter the first muffling chamber 15, so that an air outlet of the air inlet pipe 3 is communicated with the first muffling chamber 15.
Preferably, the air outlet pipe 4 in this embodiment sequentially passes through the top end of the housing, the first muffling cavity 15 and the partition plate 2 to enter the second muffling cavity 14, so that the air inlet of the air outlet pipe 4 is communicated with the second muffling cavity 14.
As shown in fig. 2, the partition board 2 is further provided with a first through hole 23 for passing the inlet pipe 3 and a second through hole 22 for passing the outlet pipe 4. Wherein, the first through hole 23 is connected with the pipe wall of the air inlet pipe 3; the second through hole 22 is connected with the pipe wall of the air outlet pipe 4.
In the use process of the silencer provided by the embodiment, the first silencing cavity 15 is positioned above the second silencing cavity 14; the pulsating refrigerant airflow of the refrigerating system enters the first silencing cavity 15 from the air inlet pipe 3 connected with the lower end of the first silencing cavity 15, and the pulsating refrigerant airflow can enter the second silencing cavity 14 from the flow guide hole 21 on the partition board 2 to form an airflow column, so that the airflow column fully acts with the air in the second silencing cavity 14 to form elastic resonance, and the airflow column can resonate and violently rub with the hole wall of the flow guide hole 21 to eliminate low-frequency noise. The refrigerant airflow after the low-frequency noise is fully eliminated is discharged from the air outlet pipe. Therefore, the silencer of the embodiment can prolong the time of the refrigerant airflow in the silencer through the arrangement, so that low-frequency noise can be sufficiently eliminated.
Example 3
Preferably, the present embodiment provides a muffler, compared to the above embodiments, as shown in fig. 1 and 2, the end surface of the outlet 31 of the inlet pipe 3 of the muffler has a slope forming a set angle α with the horizontal plane; wherein, the alpha is more than 0 degree and less than 90 degrees.
In the muffler provided by this embodiment, the end surface of the air outlet 31 of the air inlet pipe 3 is set to have a slope of a set angle, so that when the pulsating refrigerant airflow of the refrigeration system flows out from the air outlet of the air inlet pipe 3, the low-frequency noise sound wave generated by the pulsating refrigerant airflow is reflected back to the direction of the sound source due to the change of the direction of the end surface of the air outlet, thereby further achieving the purpose of eliminating the low-frequency noise.
Example 4
Preferably, as shown in fig. 1 to 4, the present embodiment provides a muffler, and compared with the above embodiments, the housing 1 of the muffler in the present embodiment includes a first housing 11 and a second housing 12. Wherein the first housing 11 has a first end and a second end; a first interface 111 for connecting the air outlet pipe 4 is arranged at the first end of the first shell 11; the second end of the first housing 11 is open. The second housing 12 has a first end and a second end; wherein, the first end of the second housing 12 is open, and the second end of the second housing 12 is provided with a second interface 122 for connecting the air inlet pipe 3. Wherein, the second end of the first housing 11 and the first end of the second housing 12 are connected in a matching manner to form a housing. Wherein, the first end of the first shell 11 is the top end of the shell 1; the second end of the second housing 12 is the bottom end of the housing 1.
The silencer that this embodiment provided is through making the casing of silencer constitute by first casing 11 and second casing 12, is convenient for on the one hand install baffle 2 in the casing, and on the other hand makes things convenient for the dismantlement and the equipment of silencer casing, can also carry out regularly clearance to the lubricating oil film of pasting at shells inner wall.
Preferably, the partition board 2 is disposed in the housing in the present embodiment mainly by the following ways: first, the inner wall of the second housing 12 is provided with a groove structure adapted to the edge of the partition 2 at a position close to the first end of the second housing 12, so as to install the partition 2 in the housing. Secondly, the inner wall of the first housing 11 is provided with a groove structure adapted to the edge of the partition at a position close to the second end of the first housing 11, so as to mount the partition 2 in the housing. Thirdly, the outer wall of the first end of the second shell 12 is connected with the inner wall of the second end of the first shell 11 through screw thread fit, and the partition plate 2 is installed at the end part of the first end of the second shell 12 and is connected with the end part in a fit manner.
Example 5
The muffler provided by the embodiment 1 changes the flow speed and the flow direction of the refrigerant airflow by arranging the partition plate with the flow guide hole in the shell. The muffler provided by the embodiment 2 can further prolong the flowing time of the refrigerant airflow in the muffler. Embodiment 3 provides a muffler that further changes the flow direction of the refrigerant airflow by setting the end surface of the outlet of the inlet pipe to have a slope forming a set angle α with the horizontal plane. Therefore, when the refrigerant airflow of the refrigeration system flows through the muffler in any of the above embodiments, the speed and direction of the refrigerant airflow are greatly changed, so that the lubricating oil particles in the refrigerant airflow are separated and layered under the action of gravity. Wherein the separated lubricating oil accumulates to the inner bottom end of the muffler case. Therefore, the silencer provided by the embodiment can avoid the phenomenon that lubricating oil forms an oil film on the inner surface of the heat exchanger in the refrigerating system, and the heat exchange effect of the heat exchanger in the refrigerating system is improved.
As shown in fig. 1, this embodiment is based on the above embodiment, and is further improved on the muffler of the above embodiment, specifically, the muffler provided by this embodiment is provided with an oil return port 121 at the bottom end of the housing (when the housing includes the first housing 11 and the second housing 12, the second end of the second housing 12 is provided with the oil return port 121); for returning the lubricating oil accumulated in the inner bottom end of the muffler case to the refrigeration system.
The muffler provided by the embodiment has the advantages that the oil return opening 121 is formed in the bottom end of the muffler shell, so that the lubricating oil accumulated at the inner bottom end of the muffler shell returns to the low-pressure end of the refrigeration system, and then flows back to the lubricating oil storage device of the refrigeration system for recycling. The lubricating oil can be timely supplemented into the refrigerating system on the basis of improving the heat exchange effect of the heat exchanger in the refrigerating system, so that the cost of the refrigerating system is saved, and the running reliability of the refrigerating system is ensured.
Preferably, as shown in fig. 1, fig. 2 and fig. 3, the muffler in the present embodiment further includes an oil return adjusting mechanism 5, and the oil return adjusting mechanism 5 is connected to the oil return port 121 and is configured to adjust an oil return parameter of the lubricating oil according to a requirement of the refrigeration system, so as to ensure a normal operation of the refrigeration system.
Preferably, the oil return adjusting mechanism 5 includes an oil return pipe, one end of the oil return pipe is connected to the oil return port 121 at the bottom end of the housing, and the other end of the oil return pipe is used for connecting to the air suction port of the compressor in the refrigeration system. The oil return adjusting mechanism in the embodiment mainly has the function of stabilizing the pressure difference between the interior of the muffler and the air suction port of the compressor, so that oil in the muffler can flow back to the air suction port of the compressor. Preferably, the oil return pipe can be a capillary pipe with a certain length, and can also be replaced by an expansion valve.
Example 6
Preferably, as shown in fig. 2, the present embodiment provides a muffler, compared with the above embodiments, the partition plate 2 of the muffler is made of stainless steel, so as to improve the durability of the muffler. And, the diversion holes 21 are evenly distributed on the partition plate 2 to form a spoiler.
Preferably, the angle between the axis of the diversion hole 21 and the axis of the partition board 2 (the axis perpendicular to the plane of the partition board) is 0-5 ° (that is, the partition board 2 is a flat board, the diversion hole 21 is obliquely arranged on the partition board 2, and the radial angle between the axis of the diversion hole 21 and the axis of the partition board 2 is 0-5 °). Through the arrangement, when the pulsating refrigerant gas flows through the flow guide holes 21, the gas flow column can be formed, the gas flow column enters the second silencing cavity to act with air in the second silencing cavity to form an elastic resonance system, when the low-frequency noise frequency is the same as the natural frequency of the resonance system, the gas flow column in the flow guide holes 21 resonates and violently rubs against the flow guide holes, and the friction can eliminate sound energy, so that the aim of silencing is achieved.
Example 7
In another aspect, the present embodiment provides a refrigeration system, which includes a compressor, a heat exchanger, and the muffler according to any of the above embodiments. Wherein, the air inlet of the air inlet pipe on the silencer is communicated with the air outlet of the compressor. The air outlet of the air outlet pipe on the silencer is communicated with one end of the heat exchanger; the other end of the heat exchanger is communicated with an air suction port of the compressor.
Preferably, the muffler of the refrigeration system of the present embodiment may be installed at a position near the discharge end of the compressor, and the oil return port of the muffler may be installed at a position near the suction end of the compressor.
Preferably, the refrigeration system in the embodiment realizes the recycling of the lubricating oil by the following arrangement: the refrigeration system also comprises a lubricating oil storage device, wherein the lubricating oil storage device is connected with the compressor and is used for supplying lubricating oil to the compressor; wherein, the oil return opening of the silencer is communicated with the lubricating oil storage device.
Here, the refrigeration system of the embodiment can also realize the recycling of the lubricating oil through the following arrangement: the oil return port of the muffler can be directly communicated with the lubricating oil hole on the compressor so as to directly provide lubricating oil for the compressor.
In another aspect, the present embodiment further provides an air conditioning apparatus, wherein the air conditioning apparatus includes the refrigeration system described in the present embodiment.
Here, the refrigeration system and the air conditioning equipment provided in this embodiment adopt the muffler in any one of the above embodiments, so that the refrigeration system and the air conditioning equipment have the beneficial effects in any one of the above embodiments, which are not repeated herein.
In summary, the muffler, the refrigeration system and the air conditioning equipment provided by the embodiment of the invention improve the frequency band applicability of the low-frequency noise capable of being eliminated, so that the frequency band for eliminating the low-frequency noise is wider, and the influence of the low-frequency noise in the refrigeration system and the air conditioning equipment on the environment is improved. Meanwhile, the muffler, the refrigeration system and the air conditioning equipment provided by the embodiment of the invention can avoid the phenomenon that lubricating oil forms an oil film on the inner surface of a heat exchanger in the refrigeration system, improve the heat exchange effect of the heat exchanger in the refrigeration system, supplement the lubricating oil into the refrigeration system in time and ensure the operation reliability of the refrigeration system. Through tests, the refrigerating capacity is improved by more than 5% under the same conditions.
In summary, it is readily understood by those skilled in the art that the advantageous modes described above can be freely combined and superimposed without conflict.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.
Claims (8)
1. A muffler for use in a refrigeration system to eliminate noise in the refrigeration system; characterized in that the muffler comprises:
the bottom end of the shell is provided with an oil return port for returning lubricating oil in the refrigerant airflow to the refrigeration system; the muffler further comprises an oil return adjusting mechanism, wherein the oil return adjusting mechanism is connected with the oil return port and used for adjusting oil return parameters of lubricating oil according to the requirement of a refrigeration system and stabilizing the pressure difference between the interior of the muffler and a compressor suction port;
the baffle is arranged in the shell and divides the inner cavity of the shell into a first silencing cavity and a second silencing cavity; wherein, a plurality of flow guide holes are arranged on the clapboard; the included angle between the axis of the flow guide hole and the axis of the partition plate is larger than 0 degree and smaller than or equal to 5 degrees; the clapboard is a flat plate, and the diversion holes are obliquely formed in the clapboard;
the air inlet pipe is communicated with the first silencing cavity and is used for conveying refrigerant airflow into the first silencing cavity;
the air outlet pipe is communicated with the second silencing cavity and used for discharging the refrigerant airflow in the second silencing cavity;
the air inlet pipe sequentially penetrates through the bottom end of the shell, the second silencing cavity and the partition plate to enter the first silencing cavity, so that an air outlet of the air inlet pipe is communicated with the first silencing cavity; the end surface of the air outlet of the air inlet pipe is provided with an inclination forming a set angle alpha with the horizontal plane; wherein, the alpha is more than 0 degree and less than 90 degrees.
2. The muffler of claim 1, wherein the outlet pipe sequentially passes through the top end of the shell, the first muffling cavity and the partition plate to enter the second muffling cavity, so that the inlet of the outlet pipe is communicated with the second muffling cavity.
3. The muffler of claim 2, wherein the housing comprises:
a first housing having a first end and a second end; the first end of the first shell is provided with a first interface used for connecting the air outlet pipe; the second end of the first shell is arranged in an open mode;
a second housing having a first end and a second end; the first end of the second shell is arranged in an open mode, and the second end of the second shell is provided with a second connecting port used for being connected with the air inlet pipe;
wherein the second end of the first housing is connected to the first end of the second housing; and the first end of the first shell is the top end of the shell, and the second end of the second shell is the bottom end of the shell.
4. The muffler of claim 1, wherein the oil return adjusting mechanism comprises an oil return pipe, one end of the oil return pipe is connected with an oil return port at the bottom end of the shell, and the other end of the oil return pipe is used for connecting a refrigeration system.
5. The muffler of claim 1, wherein the partition is made of stainless steel; the flow guide holes are uniformly distributed on the partition plate to form a spoiler.
6. A refrigeration system, comprising:
a compressor having a discharge port and a suction port;
a heat exchanger;
a muffler according to any one of claims 1 to 5;
the air inlet of the air inlet pipe on the silencer is communicated with the air outlet of the compressor;
the air outlet of the air outlet pipe on the silencer is communicated with one end of the heat exchanger; the other end of the heat exchanger is communicated with the air suction port of the compressor.
7. The refrigeration system as recited in claim 6 further comprising a lubricant storage device connected to said compressor for providing lubricant to said compressor;
when the silencer is provided with an oil return opening, the oil return opening is communicated with the lubricating oil storage device.
8. An air conditioning apparatus characterized in that it comprises a refrigeration system according to claim 6 or 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610100884.7A CN105649994B (en) | 2016-02-24 | 2016-02-24 | Silencer, refrigerating system and air conditioning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610100884.7A CN105649994B (en) | 2016-02-24 | 2016-02-24 | Silencer, refrigerating system and air conditioning equipment |
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| Publication Number | Publication Date |
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| CN105649994A CN105649994A (en) | 2016-06-08 |
| CN105649994B true CN105649994B (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610100884.7A Active CN105649994B (en) | 2016-02-24 | 2016-02-24 | Silencer, refrigerating system and air conditioning equipment |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441767A (en) * | 2018-12-11 | 2019-03-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Muffler structure and compressor with it |
| CN111043009A (en) * | 2019-11-27 | 2020-04-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor assembly, refrigerator and control method |
| CN114576138B (en) * | 2020-11-30 | 2023-04-28 | 安徽美芝制冷设备有限公司 | Suction muffler |
| EP4033097B1 (en) | 2020-11-30 | 2024-04-24 | Anhui Meizhi Compressor Co., Ltd. | Suction muffler |
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| Publication number | Publication date |
|---|---|
| CN105649994A (en) | 2016-06-08 |
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