CN210463276U - Air conditioning system and air conditioner with same - Google Patents
Air conditioning system and air conditioner with same Download PDFInfo
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- CN210463276U CN210463276U CN201921220291.XU CN201921220291U CN210463276U CN 210463276 U CN210463276 U CN 210463276U CN 201921220291 U CN201921220291 U CN 201921220291U CN 210463276 U CN210463276 U CN 210463276U
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Abstract
The utility model discloses an air conditioning system and air conditioner that has it, air conditioning system includes the refrigerant return circuit, and locates compressor, first heat exchanger, second heat exchanger, throttling arrangement, noise eliminator and the switching-over valve in refrigerant return circuit, noise eliminator includes first silencer and second silencer, wherein, first silencer is located blast pipe, or muffler, or low pressure valve pipe, or the valve cooling pipe, the second silencer is located low pressure valve pipe, or the blast pipe, or the valve cooling pipe, or muffler on the circulation direction in refrigerant return circuit, the second silencer for first silencer is kept away from the gas vent of compressor. According to the utility model discloses an air conditioning system, noise elimination effect is good.
Description
Technical Field
The utility model belongs to the technical field of the air conditioning technology and specifically relates to an air conditioning system and air conditioner that has it are related to.
Background
The air conditioner in the related art generates large noise during working, and causes uncomfortable experience for users.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an air conditioning system, air conditioning system's noise elimination effect is good.
The utility model discloses still provide an air conditioner with above-mentioned air conditioning system.
According to the utility model discloses air conditioning system of first aspect, air conditioning system includes the refrigerant circuit, and locates compressor, first heat exchanger, second heat exchanger, throttling arrangement, noise eliminator and the switching-over valve in refrigerant circuit, the switching-over valve is used for making air conditioning system switches between refrigeration mode and heating mode under the refrigeration mode, first heat exchanger is the evaporimeter, the second heat exchanger is the condenser, the refrigerant circuit includes: an exhaust pipe, an air return pipe, a low-pressure valve pipe and a valve cooling pipe, wherein the exhaust pipe is connected between an exhaust port of the compressor and an exhaust interface of the reversing valve, the air return pipe is connected between the air return port of the compressor and the air return interface of the reversing valve, the low-pressure valve pipe is connected between the first heat exchanger and a low-pressure valve interface of the reversing valve, the valve cold pipe is connected between the second heat exchanger and the valve cold interface of the reversing valve, the noise elimination device comprises a first noise eliminator and a second noise eliminator, wherein the first muffler is arranged on the exhaust pipe, the air return pipe, the low-pressure valve pipe or the valve cooling pipe, the second muffler is arranged on the low-pressure valve pipe, the exhaust pipe, the valve cooling pipe or the air return pipe, the second muffler is distant from a discharge port of the compressor with respect to the first muffler in a circulation direction of the refrigerant circuit.
According to the utility model discloses an air conditioning system, noise elimination effect is good.
In some embodiments, the first muffler is provided at the exhaust pipe, and the second muffler is provided at the low pressure valve pipe.
In some embodiments, the first muffler is vertically disposed, and an upper end of the first muffler is connected to an exhaust port of the compressor.
In some embodiments, the second muffler is vertically disposed, and an upper end of the second muffler is connected to the low pressure valve interface of the direction valve.
In some embodiments, the expansion cavities of the first muffler and the second muffler are the same in size, and the inner diameter of the two-end interface of the first muffler is smaller than the inner diameter of the two-end interface of the second muffler.
In some embodiments, the compressor is a fixed speed compressor.
In some embodiments, the refrigerant circuit has a line length L between the first muffler and the compressor, wherein L1 is 50mm to 100mm to muffle noise in the 2350Hz to 3510Hz frequency band of the compressor's transmitted sound; or the L1 is 35 mm-50 mm, so as to eliminate the noise in the 4270 Hz-4510 Hz frequency band in the transmission sound of the compressor.
In some embodiments, the refrigerant circuit has a line length L between the second muffler and the first muffler, wherein L2 is 0mm to 200mm to muffle noise in the 0Hz to 1000Hz frequency band of the compressor's transmitted sound; or the L2 is 200-250 mm, so as to eliminate noise in the 3390-3690 Hz frequency band in the transmission sound of the compressor.
According to the utility model discloses air conditioner of second aspect, include according to the utility model discloses the air conditioning system of first aspect.
According to the utility model discloses an air conditioner is through setting up the air conditioning system of above-mentioned first aspect to the whole noise elimination effect of air conditioner has been improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic diagram of an air conditioning system according to an embodiment of the present invention;
fig. 2 is a partial front view of an air conditioning system according to an embodiment of the present invention;
fig. 3 is a partial top view of an air conditioning system according to an embodiment of the present invention;
fig. 4 is a partial perspective view of an air conditioning system according to an embodiment of the present invention;
fig. 5 is a plot of noise abatement test data for an air conditioning system according to an embodiment of the present invention;
fig. 6 is a plot of noise abatement test data for an air conditioning system according to an embodiment of the present invention;
fig. 7 is a schematic view of an air conditioner according to an embodiment of the present invention.
Reference numerals:
an air conditioning system 100; an air conditioner 1000;
a refrigerant circuit 1; an exhaust pipe 11; a muffler 12; a low-pressure valve pipe 13; a valve cold pipe 14;
a compressor 2; a compressor body 2 a; a liquid reservoir 2 b; an exhaust port 21; a return air port 22;
a first heat exchanger 3; a second heat exchanger 4; a throttle device 5;
a muffler device 6; a first muffler 61; a second muffler 62;
a reversing valve 7; an exhaust port 71; a return air interface 72; a low-pressure valve interface 73; a valve cold junction 74;
a low-pressure valve 8; a valve mounting plate 9.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.
Next, with reference to the drawings, an air conditioning system 100 and an air conditioner 1000 according to an embodiment of the present invention are described.
According to the utility model discloses air conditioning system 100 for heat pump system and be applied to air conditioner 1000, air conditioner 1000 can realize the refrigeration function and heat the function through air conditioning system 100.
As shown in fig. 1, an air conditioning system 100 according to an embodiment of the present invention may include a refrigerant circuit 1, and a compressor 2, a first heat exchanger 3, a second heat exchanger 4, a throttle device 5, and a muffler device 6 provided in the refrigerant circuit 1. In the cooling mode, the first heat exchanger 3 is an evaporator and the second heat exchanger 4 is a condenser. For example, when the air conditioner 1000 is a split type air conditioner 1000, the first heat exchanger 3 is an indoor heat exchanger, and the second heat exchanger 4 is an outdoor heat exchanger. It is understood that in some embodiments, the compressor 2 may include a compressor body 2a and an accumulator 2b, wherein the discharge port 21 may be formed on the compressor body 2a and the return port 22 may be formed on the accumulator 2 b.
As shown in fig. 1, the air conditioning system 100 further includes a reversing valve 7 provided in the refrigerant circuit 1, in this case, the refrigerant circuit 1 includes an exhaust pipe 11, an air return pipe 12, a low pressure valve pipe 13, and a valve cooling pipe 14, the exhaust pipe 11 is connected between the exhaust port 21 of the compressor 2 and the exhaust port 71 of the reversing valve 7, the air return pipe 12 is connected between the air return port 22 of the compressor 2 and the air return port 72 of the reversing valve 7, the low pressure valve pipe 13 is connected between the first heat exchanger 3 and the low pressure valve port 73 of the reversing valve 7, and the valve cooling pipe 14 is connected between the second heat exchanger 4 and the valve cooling port 74 of the reversing valve 7.
As shown in fig. 1, the muffler device 6 includes a first muffler 61 and a second muffler 62, and the second muffler 62 is far from the exhaust port 21 of the compressor 2 relative to the first muffler 61 in the circulation direction of the refrigerant circuit 1, i.e., during the circulation, the refrigerant discharged from the exhaust port 21 of the compressor 2 flows through the first muffler 61 and then flows through the second muffler 62 before flowing back to the return port 22 of the compressor 2, rather than flowing through the second muffler 62 and then flowing through the first muffler 61.
Specifically, the length of the pipeline of the refrigerant circuit 1 between the first muffler 61 and the compressor 2 is set to L1, and the length of the pipeline of the refrigerant circuit 1 between the second muffler 62 and the first muffler 61 is set to L2, according to the air conditioning system 100 of the embodiment of the present invention, in the design process, on one hand, L1 can be kept constant, and the noise elimination effect is improved by adjusting L2; on the other hand, the noise cancellation effect can be improved by adjusting L1 while keeping L2 constant.
Therefore, the optimal position can be optimized by referring to the prior art, namely on the premise of adopting the same number of silencers, the relative position of the upstream silencer relative to the exhaust port 21 of the compressor 2 and the relative positions of the two silencers are adjusted, so that the silencing effect is optimal, and theoretical support is provided for pipeline design.
Specifically, because compressor 2 low frequency transmission sound is eliminated and often needs to increase silencer pipeline length in order to satisfy low frequency transmission sound and eliminate, when setting up two silencers in the refrigeration circuit, can be according to the fluid flow direction, set up two silencers into the series connection form, nevertheless because the series connection of two silencers easily forms the noise elimination valley, and the noise elimination volume is minimum at this frequency point promptly, consequently, under the condition that adopts two silencers, through adjusting the interval of two adjacent silencers, on the one hand can improve the noise elimination volume, on the other hand can effectively avoid the valley frequency between two silencers of series connection, improves the effective noise elimination volume of silencer device at this frequency point.
Specifically, when the muffler device 6 includes both the first muffler 61 and the second muffler 62 and the air conditioning system 100 is a heat pump system, the positions of the first muffler 61 and the second muffler 62 can be flexibly set. Further, it should be noted that the muffler device 6 may further include another muffler besides the first muffler 61 and the second muffler 62, which is not limited herein.
For example, the first muffler 61 may be provided to the exhaust pipe 11, or the low pressure valve pipe 13, or the valve cooling pipe 14. Specifically, in the heating mode, the first muffler 61 is provided in the exhaust pipe 11 or the low-pressure valve pipe 13 to provide a good sound-deadening effect, and in the cooling mode, the first muffler 61 is provided in the exhaust pipe 11 or the muffler 12 or the valve cooling pipe 14 to provide a good sound-deadening effect when the space permits. Therefore, the first muffler 61 may be preferably provided on the exhaust pipe 11 or the low pressure valve pipe 13 in the air conditioning system 100 mainly used for heating, and the first muffler 61 may be preferably provided on the exhaust pipe 11, the return pipe 12, or the valve cooling pipe 14 in the air conditioning system 100 mainly used for cooling, so that the noise reduction effect can be more effectively achieved.
For example, the second muffler 62 may be provided to the low pressure valve pipe 13, or the exhaust pipe 11, or the valve cooling pipe 14, or the muffler 12. Further, the first muffler 61 and the second muffler 62 may be located on the same pipe (for example, both the first muffler 61 and the second muffler 62 are located on the exhaust pipe 11), or may be located on different pipes (for example, the first muffler 61 is located on the exhaust pipe 11, and the second muffler 62 is located on the low pressure valve pipe 13), as long as the first muffler 61 is located upstream of the second muffler 62. Thus, the design is flexible.
In some embodiments of the present invention, the air conditioning system 100 is a heat pump system, and the muffler device 6 includes a first muffler 61 and a second muffler 62, wherein the first muffler 61 is disposed on the exhaust pipe 11, i.e. communicated between the exhaust port 21 of the compressor 2 and the exhaust port 21 of the reversing valve 7, and the second muffler 62 is disposed on the low pressure valve pipe 13, i.e. communicated between the port of the low pressure valve 8 of the reversing valve 7 and the first heat exchanger 3. This can effectively improve the noise cancellation effect of the entire air conditioning system 100.
In some embodiments of the present invention, as shown in fig. 2 and 4, the first muffler 61 may be vertically disposed, and the upper end of the first muffler 61 is connected to the exhaust port 21 of the compressor 2. Therefore, the installation is convenient, and the integral noise elimination effect of the air conditioning system 100 can be effectively improved.
In some embodiments of the present invention, as shown in fig. 2 and 4, the second muffler 62 may be vertically disposed, and the upper end of the second muffler 62 is connected to the port of the low pressure valve 8 of the direction valve 7. Therefore, the installation is convenient, and the integral noise elimination effect of the air conditioning system 100 can be effectively improved.
In some embodiments of the present invention, the expansion cavities of the first muffler 61 and the second muffler 62 are the same in size, and the inner diameter of the joint at both ends of the first muffler 61 is smaller than the inner diameter of the joint at both ends of the second muffler 62. Therefore, the installation is convenient, and the integral noise elimination effect of the air conditioning system 100 can be effectively improved. For example, the length of the first muffler 61 is 150mm, the outer diameter of the expansion chamber defined by the first muffler 61 is 25mm, the wall thickness of the first muffler 61 is 0.75mm, and the inner diameter of the joint at both ends of the first muffler 61 is 8 mm. The length of the second muffler 62 is 150mm, the outer diameter of the expansion chamber defined by the second muffler 62 is 25mm, the wall thickness of the second muffler 62 is 0.75mm, and the inner diameter of the joint at both ends of the second muffler 62 is 9.52 mm.
As shown in fig. 2 and 4, the first muffler 61 is disposed vertically, an upper end of the first muffler 61 is connected to the discharge port 21 of the compressor 2, and the second muffler 62 is also disposed vertically, and an upper end of the second muffler 62 is connected to the port of the low pressure valve 8 of the direction change valve 7. The length of the refrigeration circuit between the upper end of the first muffler 61 and the discharge port 21 of the compressor 2 is the aforementioned length L1, and the length of the refrigeration circuit between the upper end of the second muffler 62 and the lower end of the first muffler 61 is the aforementioned length L2. Therefore, on one hand, L1 can be limited to be constant, and the silencing effect is improved by adjusting L2; on the other hand, L2 can be limited to be constant, and the silencing effect is improved by adjusting L1.
In the following, experimental data according to a specific embodiment of the present invention is described.
In this embodiment, the air conditioning system 100 is set to adopt a KFR-35W-B01 constant speed cooling and heating model, the outdoor unit model corresponding to this model is KFR-35GW/DY-DH400(D3), and the specific parameters include: 1.5 pieces (3500W), fixed frequency, three-stage energy efficiency, refrigerating capacity (3670W), refrigerating power (1115W), refrigerating area (15-20 square meters), heating capacity (3900+1050W), heating power (1100+1050W), heating area (15-20 square meters), electric auxiliary heating (1050W), internal machine size (870x275x205mm), internal machine weight (13kg), external machine size (857x555x328mm), external machine weight (32kg) and power supply (220V). The machine type can meet the requirements of refrigeration and heating at the same time. The first muffler 61 is located on the exhaust pipe 11, and the second muffler 62 is located on the low-pressure valve pipe 13, in general, in a heating condition, because the system pressure pulsation is relatively large, the heating transmission sound is relatively serious, and in a cooling condition, the transmission sound is relatively small or may not be transmitted, so the test is selected in the heating condition.
Setting: the length of the first muffler 61 is 150mm, the outer diameter of the expansion chamber defined by the first muffler 61 is 25mm, the wall thickness of the first muffler 61 is 0.75mm, and the inner diameter of the joint at both ends of the first muffler 61 is 8 mm. The length of the second muffler 62 is 150mm, the outer diameter of the expansion chamber defined by the second muffler 62 is 25mm, the wall thickness of the second muffler 62 is 0.75mm, and the inner diameter of the joint at both ends of the second muffler 62 is 9.52 mm.
Considering that the difference between the test result and the simulation data is not large, values of L1 and L2 are selected through simulation, and only the simulation data are provided. In addition, the parameters of the KFR-35W-B01 constant-speed cooling and heating machine type are well known to those skilled in the art and are not described herein.
For example, as shown in FIG. 5, L2 is set to any value of 100mm to 250mm, for example, L2 is set to 200 mm; the comparison muffling amount of L1, specifically, the comparison L1 was changed to 35mm (as shown by the a curve in fig. 5), 50mm (as shown by the B curve in fig. 5), and 100mm (as shown by the C curve in fig. 5), respectively. As shown in fig. 4, the abscissa represents the noise frequency (in Hz) of the transmitted sound, and the ordinate represents the amount of noise cancellation (in dB). Wherein, the noise frequency of the transmission sound refers to: the frequency of noise in the fluid in the refrigeration circuit is reflected in the scene of noise perception on the inside of the room.
As shown in FIG. 5, for the low-frequency band transmission sound (i.e. the noise frequency is 0Hz-1000Hz), the differences of the sound-deadening amounts of 35mm, 50mm and 100mm of L1 are not large; but for the high-frequency band transmission sound (namely the noise frequency is 2350Hz-3510Hz), the L1 is 50mm, the noise elimination quantity of 100mm is larger, and the noise elimination effect is better; for the high-frequency transmission sound (namely the noise frequency is 3510Hz-3950Hz), the silencing quantity is larger and the silencing effect is better when the L1 is 100 mm; in the case of a higher frequency band (i.e., a noise frequency of 3970Hz to 4390Hz), the noise reduction amount is large and the noise reduction effect is good when L1 is 35mm, but in the case of L1 being 35mm, the noise reduction amount is small when L1 is 2350Hz to 3390Hz, and therefore, in consideration of the noise reduction bandwidth, it is preferable to set L1 to 100mm or more in order to secure a large noise reduction amount and a wide noise reduction frequency band.
For example, as shown in FIG. 6, L1 is set to any one of values of 0mm to 200mm, for example, L1 is set to 166 mm; the comparison noise reduction amounts of L2 were varied, specifically, the comparison L2 was 0mm (as shown by the a curve in fig. 6), 100mm (as shown by the B curve in fig. 6), 200mm (as shown by the C curve in fig. 6), and 250mm (as shown by the D curve in fig. 6), respectively. As shown in fig. 5, the abscissa represents the noise frequency (in Hz) of the transmitted sound, and the ordinate represents the amount of noise cancellation (in dB). Wherein, the noise frequency of the transmission sound refers to: the frequency of noise in the fluid in the refrigeration circuit is reflected in the scene of noise perception on the inside of the room.
As shown in fig. 6, L2 is preferably 100mm for low frequency band transmitted sound (i.e. noise frequency of 0Hz-1000Hz), with a large amount of muffled sound and a low muffled valley frequency. For the transmission sound of a specific frequency band (for example, the noise frequency is near 610 Hz), the silencing valleys exist when the L2 is 250mm and 200mm, namely, the silencing quantity is sharply reduced, when the L2 is 100mm and 0mm, the silencing quantity is obviously better than that when the L2 is 200mm and 250mm, namely, near the frequency point, the smaller the distance is, the better the silencing effect is. Other tones transferred for a specific frequency band can be set with reference to fig. 6, and are not described herein.
Through the above and related experiments, it can be found that, for the full-band transmitted sound (i.e. the noise frequency is 20Hz-20000Hz), the L2 is 0mm, 100mm, 200mm and 250mm, which can improve the noise elimination amount, i.e. meet the process conditions and the spatial arrangement, and for the specific frequency, the smaller the value of L2, the better, although the total noise elimination amount is not large, at the specific frequency (the noise elimination valley frequency), the noise elimination amount meets the noise elimination requirement.
In summary, the L1 is 50mm to 100mm to eliminate noise in the 2350Hz to 3510Hz frequency band of the transmission sound of the compressor 2; or the L1 is 35 mm-50 mm, so as to eliminate the noise of 4270 Hz-4510 Hz frequency band in the transmission sound of the compressor 2. L2 is 0 mm-100 mm, in order to eliminate the noise of 0Hz-1000Hz frequency band in the transmission sound of the said compressor 2; or the L2 is 100 mm-200mm, so as to eliminate noise aiming at the 0Hz-1000Hz frequency band in the transmission sound of the compressor 2; or the L2 is 200-250 mm to eliminate noise in the 3390-3690 Hz frequency band in the transmission sound of the compressor 2.
It should be noted that the transmission sound elimination is a continuous process, for example, the high-frequency transmission sound can be eliminated in the process of eliminating the low-frequency transmission sound by the first muffler 61, the high-frequency and low-frequency transmission sound still exists after flowing out of the first muffler 61 into the second muffler 62, and the transmission sound elimination of the refrigerant flowing out of the first muffler 61 can be continued by the second muffler 62.
Therefore, in the design process, the sound can be eliminated aiming at the frequency of the transmitted sound of the specific compressor 2 according to the actual process requirement and the pipeline space arrangement, for example, if the transmitted sound of the indoor compressor 2 passes the test that the frequency of the abnormal sound is 3510Hz-4670Hz, and then the L1 is 100-200mm, the sound eliminating effect for the frequency section is the best. In addition, the method can be used for mainly eliminating the low-frequency band transmitted sound by firstly determining L2 and adjusting L1, and then mainly eliminating the low-frequency band transmitted sound by adjusting L2 under the determined L1. Alternatively, the method can be used for mainly eliminating the low-frequency band transmitted sound by determining L1 and adjusting L2, and then mainly eliminating the high-frequency band transmitted sound by adjusting L1 under the determined L2. Of course, the present invention is not limited to the above design idea, and can also be designed by other methods.
Other configurations of the air conditioner 1000 according to the embodiment of the present invention, such as the low pressure valve 8 provided on the low pressure valve pipe 13, and the valve mounting plate 9 for mounting the low pressure valve 8, etc., and the operation of the air conditioner 1000 are known to those skilled in the art and will not be described in detail herein. In addition, it should be noted that the type of the air conditioner 1000 according to the embodiment of the present invention is not limited, and the air conditioner may be a split wall-mounted air conditioner 1000, a split floor-type air conditioner 1000, a window air conditioner, a mobile air conditioner, etc., and will not be described herein.
In the present application, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "secured" are to be construed broadly, e.g., as meaning directly connected to one another, indirectly connected through intervening media, communicating between two elements, or interacting between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. An air conditioning system is characterized by comprising a refrigerant loop, a compressor, a first heat exchanger, a second heat exchanger, a throttling device, a noise elimination device and a reversing valve, wherein the compressor, the first heat exchanger, the second heat exchanger, the throttling device, the noise elimination device and the reversing valve are arranged on the refrigerant loop, the reversing valve is used for switching the air conditioning system between a refrigeration mode and a heating mode, in the refrigeration mode, the first heat exchanger is an evaporator, the second heat exchanger is a condenser,
the refrigerant circuit includes: the exhaust pipe is connected between an exhaust port of the compressor and an exhaust interface of the reversing valve, the muffler is connected between an air return port of the compressor and an air return interface of the reversing valve, the low-pressure valve pipe is connected between the first heat exchanger and the low-pressure valve interface of the reversing valve, and the valve cooling pipe is connected between the second heat exchanger and the valve cooling interface of the reversing valve,
the muffler device comprises a first muffler and a second muffler, wherein the first muffler is arranged on the exhaust pipe, or a gas return pipe, or the low-pressure valve pipe, or the valve cooling pipe, the second muffler is arranged on the low-pressure valve pipe, or the exhaust pipe, or the valve cooling pipe, or the gas return pipe, and the second muffler is far away from an exhaust port of the compressor relative to the first muffler in the circulation direction of the refrigerant circuit.
2. The air conditioning system of claim 1, wherein said first muffler is provided to said exhaust pipe and said second muffler is provided to said low pressure valve pipe.
3. The air conditioning system as claimed in claim 2, wherein the first muffler is vertically disposed, and an upper end of the first muffler is connected to an exhaust port of the compressor.
4. The air conditioning system of claim 2, wherein the second muffler is vertically disposed, and an upper end of the second muffler is connected to a low pressure valve interface of the directional valve.
5. The air conditioning system of claim 2, wherein the expansion chambers of the first and second mufflers are the same size, and the inside diameter of the port at both ends of the first muffler is smaller than the inside diameter of the port at both ends of the second muffler.
6. The air conditioning system of claim 2, wherein the compressor is a fixed speed compressor.
7. The air conditioning system as claimed in claim 2, wherein a pipe length of the refrigerant circuit between the first muffler and the compressor is L1, wherein the L1 is 50mm to 100mm to muffle noise for a 2350Hz to 3510Hz frequency band of the transmitted sound of the compressor; or the L1 is 35 mm-50 mm, so as to eliminate the noise in the 4270 Hz-4510 Hz frequency band in the transmission sound of the compressor.
8. The air conditioning system as claimed in claim 2, wherein a pipe length of the refrigerant circuit between the second muffler and the first muffler is L2, wherein the L2 is 0mm to 200mm to muffle noise of a frequency band of 0Hz to 1000Hz in a transmission sound of the compressor; or the L2 is 200-250 mm, so as to eliminate noise in the 3390-3690 Hz frequency band in the transmission sound of the compressor.
9. An air conditioner characterized by comprising the air conditioning system according to any one of claims 1 to 8.
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| CN201921220291.XU CN210463276U (en) | 2019-07-29 | 2019-07-29 | Air conditioning system and air conditioner with same |
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| CN201921220291.XU CN210463276U (en) | 2019-07-29 | 2019-07-29 | Air conditioning system and air conditioner with same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112460785A (en) * | 2020-10-26 | 2021-03-09 | 珠海格力电器股份有限公司 | Air conditioner pipeline noise elimination method and system and air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112460785A (en) * | 2020-10-26 | 2021-03-09 | 珠海格力电器股份有限公司 | Air conditioner pipeline noise elimination method and system and air conditioner |
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