CN211574502U - Device for attenuating refrigerant pressure pulsation and air conditioner - Google Patents
Device for attenuating refrigerant pressure pulsation and air conditioner Download PDFInfo
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- CN211574502U CN211574502U CN201921590455.8U CN201921590455U CN211574502U CN 211574502 U CN211574502 U CN 211574502U CN 201921590455 U CN201921590455 U CN 201921590455U CN 211574502 U CN211574502 U CN 211574502U
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Abstract
The utility model provides an attenuate refrigerant pressure pulsation's device and air conditioner, relates to connector technical field, and this attenuate refrigerant pressure pulsation's device includes the pipeline, the pipeline cover is equipped with the barrel, a plurality of through-holes have been seted up to the pipeline, and is a plurality of the through-hole with the inside intercommunication of barrel, it is a plurality of part in the through-hole is provided with the covering part. The utility model discloses a set up a plurality of through-holes on the pipeline, and choose for use suitable barrel cover to establish on the pipeline, make the inside intercommunication of through-hole and barrel, regard as the hole of muffling with partly through-hole simultaneously, set up the covering member on the other part through-hole, thereby form parallelly connected fluid damping system and helmholtz noise elimination system, use when through two kinds of systems, pipeline vibration and fluid noise that the decay refrigerant pressure pulsation produced, reduce manufacturing cost, simultaneously because the extra counter weight of pipeline is few, also can reduce the pipeline because the counter weight increases, the pipeline stress strain that produces is opened, shut down the problem that exceeds standard.
Description
Technical Field
The utility model relates to a connector technical field especially relates to an attenuate refrigerant pressure pulsation's device and air conditioner.
Background
In the operation process of the air conditioner, pressure pulsation is generated in an outdoor unit pipeline along with the periodic air suction, compression and exhaust of a refrigerant in a compressor. The pressure pulsation of the refrigerant is large, so that the vibration of an outer machine pipeline system is large, the service life of the outer machine pipeline is influenced, and the pipeline is fatigue and broken seriously, so that the refrigerant is leaked. The refrigerant pressure pulsation not only generates pipeline vibration, but also generates fluid noise, and the vibration and the noise are transmitted to the indoor unit in serious cases.
At present, vibration and noise generated by pressure pulsation of a refrigerant are solved by a common method separately. The pipeline vibration generated by the pressure pulsation of the refrigerant is reduced by adding a balance weight or constraint to the pipeline by adding damping, rubber rings, pipeline fixing blocks and the like on the pipeline. The noise generated by the pressure pulsation of the refrigerant is solved by adding the silencer on the pipeline. In order to solve the problems of vibration and noise generated by pressure pulsation of the refrigerant, the configurations of damping, rubber rings, pipeline fixing blocks, silencers and the like are required to be added, so that the manufacturing cost is increased, and the problems of pipeline stress strain opening and shutdown exceeding caused by adding a balance weight to a pipeline are solved.
SUMMERY OF THE UTILITY MODEL
One of the purposes of the utility model is to avoid the weak point among the prior art and provide an attenuation refrigerant pressure pulsation's device, this attenuation refrigerant pressure pulsation's device can solve vibration and noise that refrigerant pressure pulsation produced simultaneously, reduces manufacturing cost, simultaneously because the extra counter weight of pipeline is few, also can reduce the pipeline because the counter weight increases, the pipeline stress strain that produces opens, shuts down the problem that exceeds standard.
The purpose of the utility model is realized through the following technical scheme:
the device for attenuating pressure pulsation of the refrigerant comprises a pipeline, wherein a barrel is sleeved on the pipeline, a plurality of through holes are formed in the pipeline, the through holes are communicated with the inside of the barrel, and a covering part is arranged in the through holes. Through set up a plurality of through-holes on the pipeline, and choose for use suitable barrel cover to establish on the pipeline, make the inside intercommunication of through-hole and barrel, regard as the hole of amortization with partly through-hole simultaneously, set up the covering part on the other part through-hole, thereby form parallelly connected fluid damping system and helmholtz noise elimination system, use when through two kinds of systems, pipeline vibration and fluid noise that the decay refrigerant pressure pulsation produced, reduce manufacturing cost, simultaneously because the extra counter weight of pipeline is few, also can reduce the pipeline because the counter weight increases, the pipeline stress strain who produces is opened, the problem that the shut down exceeds standard.
Further, the covering member is a diaphragm having a size larger than that of the through hole in which the diaphragm is provided. The size of diaphragm is greater than the size of through-hole, makes the diaphragm can be better cover the through-hole, and the diaphragm has better elasticity can be when the refrigerant flows through the diaphragm better arouse the diaphragm resonance, and the reciprocating motion of diaphragm has consumed refrigerant pressure pulsation's energy for fluid pulsation obtains the maximum attenuation.
Further, when the number of the through holes provided with the diaphragm is plural, the size of each through hole provided with the diaphragm is different, the thickness of each diaphragm is the same, and the area is different. The sizes of the through holes are different, the thicknesses of the diaphragms matched with the through holes are consistent, the areas of the diaphragms are different, the natural frequencies of the diaphragms are different, and the diaphragms with different natural frequencies can eliminate refrigerant pressure pulsation with different frequencies.
Furthermore, the material of the diaphragm is consistent with that of the pipeline. The material of the diaphragm is consistent with that of the pipeline, and the diaphragm can not react with the refrigerant like the pipeline.
Further, the through holes where the covering member is not provided are uniform in size, the through holes where the covering member is not provided have a radius of r,the diameter is d, the area is S, the depth is t, the volume of the cylinder is V, the sound velocity is c, and the Helmholtz noise elimination frequency of the device is f0The following formula is satisfied:
Further, when the inside of the cylinder is provided with both the through hole provided with the covering member and the plurality of through holes not provided with the covering member, the inside of the cylinder is provided with a partition plate which partitions the cylinder into a plurality of closed spaces and allows the inside of each of the closed spaces to have the through hole not provided with the covering member. The through hole provided with the covering part and the through holes not provided with the covering part are grouped through the partition plate, each group corresponds to one closed space, and each closed space is ensured to be provided with the through hole not provided with the covering part, so that each closed space is provided with the silencing hole, when the through hole not provided with the covering part is not arranged in the closed space, the noise generated by refrigerant pressure pulsation is only solved, when the through hole provided with the covering part is arranged in the closed space, the noise generated by the refrigerant pressure pulsation can be simultaneously solved, and the refrigerant pressure pulsation attenuating device can be regarded as being formed by connecting at least one refrigerant pressure pulsation attenuating device monomer and at least one Helmholtz silencing device monomer in series. Meanwhile, the number and the size of the through holes in each independent closed space are different from the size of the covering part, so that the frequency of pressure pulsation which can be eliminated by each independent closed space is different, when a refrigerant passes through each independent closed space, vibration and noise generated by the refrigerant pressure pulsation with corresponding frequency can be eliminated, and finally, the vibration and the noise generated by the refrigerant pressure pulsation with various frequencies can be eliminated by using a plurality of closed spaces connected in series.
Further, the pipe sleeve is provided with a plurality of cylinders, and the through hole without the covering component is arranged on the pipe in the cylinder. The pipe is sleeved with a plurality of cylinders, and each cylinder is internally provided with a through hole without a covering part, so that each cylinder is internally provided with a silencing hole, when the through hole without the covering part is arranged in the cylinder, the silencing hole only solves the noise generated by the pressure pulsation of the refrigerant, and when the through hole with the covering part is arranged in the cylinder, the silencing hole can simultaneously solve the vibration and the noise generated by the pressure pulsation of the refrigerant, and the device for attenuating the pressure pulsation of the refrigerant is regarded as being formed by connecting at least one device monomer for attenuating the pressure pulsation of the refrigerant and at least one Helmholtz silencing device monomer in series. Meanwhile, the number and the size of the through holes in each independent cylinder body and the size of the covering parts are different, so that the frequency of pressure pulsation which can be eliminated by each independent cylinder body is different, when a refrigerant passes through each independent cylinder body, vibration and noise generated by refrigerant pressure pulsation of corresponding frequency can be eliminated, and finally, vibration and noise generated by refrigerant pressure pulsation of various frequencies can be eliminated by using a plurality of cylinders connected in series.
Further, the inner diameters of the two ports of the cylinder body are larger than the outer diameter of the pipeline. The pipeline can penetrate into the cylinder body after the covering component is arranged on the through hole.
The utility model has the advantages that: the utility model discloses an attenuate refrigerant pressure pulsation's device, the novel pipeline comprises a pipeline, the pipeline cover is equipped with the barrel, a plurality of through-holes have been seted up to the pipeline, and are a plurality of the through-hole with the inside intercommunication of barrel, it is a plurality of part in the through-hole is provided with the covering part. The utility model discloses a set up a plurality of through-holes on the pipeline, and choose for use suitable barrel cover to establish on the pipeline, make the inside intercommunication of through-hole and barrel, regard as the hole of muffling with partly through-hole simultaneously, set up the covering member on the other part through-hole, thereby form parallelly connected fluid damping system and helmholtz noise elimination system, use when through two kinds of systems, pipeline vibration and fluid noise that the decay refrigerant pressure pulsation produced, reduce manufacturing cost, simultaneously because the extra counter weight of pipeline is few, also can reduce the pipeline because the counter weight increases, the pipeline stress strain that produces is opened, shut down the problem that exceeds standard.
The utility model discloses a second purpose lies in avoiding the weak point among the prior art and provides an air conditioner, this air conditioner uses foretell decay refrigerant pressure pulsation's device, owing to set up a plurality of through-holes on the pipeline, and choose for use suitable barrel cover to establish on the pipeline, make the inside intercommunication of through-hole and barrel, regard partly through-hole as the amortization hole simultaneously, set up the covering part on the another part through-hole, thereby form parallelly connected fluid damping system and helmholtz noise elimination system, use when through two kinds of systems, pipeline vibration and fluid noise that decay refrigerant pressure pulsation produced, reduce manufacturing cost, simultaneously because the extra counter weight of pipeline is few, also can reduce the pipeline because the counter weight increases, the pipeline stress strain who produces is opened, shut down the problem that exceeds standard.
Drawings
The invention is further described with the aid of the accompanying drawings, in which, however, the embodiments do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived from the following drawings without inventive effort.
Fig. 1 is a sectional view showing an overall structure of a device for attenuating pressure pulsation of refrigerant according to the present invention.
The figure includes:
a pipe 1, a cylinder 2, a through hole 3 and a covering component 4.
Detailed Description
The invention will be further described with reference to the following examples.
Example 1
The device for attenuating refrigerant pressure pulsation of the present embodiment, as shown in fig. 1, includes a pipe 1, the pipe 1 is sleeved with a cylinder 2, the pipe 1 is provided with a plurality of through holes 3, the plurality of through holes 3 are communicated with the inside of the cylinder 2, and a part of the plurality of through holes 3 is provided with a covering component 4. Through set up a plurality of through-holes 3 on pipeline 1, and choose for use 2 covers of suitable barrel to establish on pipeline 1, make the inside intercommunication of through-hole 3 and barrel 2, regard as the hole of eliminating noise with partly through-hole 3 simultaneously, set up covering part 4 on another part through-hole 3, thereby form parallelly connected fluid damping system and helmholtz noise elimination system, use when through two kinds of systems, pipeline vibration and fluid noise that the decay refrigerant pressure pulsation produced, reduce manufacturing cost, simultaneously because the extra counter weight of pipeline is few, also can reduce the pipeline because the counter weight increases, the pipeline stress strain who produces opens, the problem that the shutdown exceeds standard.
The covering member 4 is a membrane having a size larger than the size of the through hole 3 in which the membrane is provided, and may be 1mm larger. The size of diaphragm is greater than the size of through-hole 3, makes the diaphragm can be better cover through-hole 3, welds it on pipeline 1, and the diaphragm has better elasticity can be when the refrigerant flows through the diaphragm better arouse the diaphragm resonance, and the reciprocating motion of diaphragm has consumed refrigerant pressure pulsation's energy for fluid pulsation obtains the attenuation of maximum.
When the number of the through holes 3 provided with the diaphragms is plural, the size of each through hole 3 provided with the diaphragms is different, the thickness of each diaphragm is the same, and the area is different. The size of each through hole 3 is different, the thickness of the diaphragm matched with each through hole 3 is the same, the area is different, the natural frequency of each diaphragm is different, the diaphragms with different natural frequencies can eliminate refrigerant pressure pulsation with different frequencies, and the thickness of the diaphragm can be specifically 0.1 mm.
The material of the diaphragm is consistent with that of the pipeline 1. The material of the diaphragm is consistent with that of the pipeline 1, and the diaphragm can not react with the refrigerant like the pipeline 1.
The through holes 3 without the covering member 4 are uniform in size, the through holes 3 without the covering member 4 have a radius r, a diameter d, an area S, a depth t, a volume V of the cylinder 2, a sound velocity c, and a Helmholtz noise elimination frequency f0The following formula is satisfied:
The inner diameters of two ports of the cylinder body 2 are larger than the outer diameter of the pipeline 1. Specifically, the size of the pipe can be 1mm, the pipe 1 can penetrate into the cylinder 2 after the covering part 4 is arranged on the through hole 3, the two ends of the pipe 1 extend out of the two ends of the cylinder 2 by 20mm respectively, and the pipe 1 and the two ports of the cylinder 2 are welded together in a spot welding mode after the pipe is inserted.
When the refrigerant flows through the device, the refrigerant flows into the cylindrical body 2 from the through hole 3 where the covering member 4 is not provided. When the cylinder 2 is filled with the refrigerant, the pressure of the refrigerant inside the pipeline 1 and the pressure of the refrigerant inside the cylinder 2 keep static pressure balance. The periodic refrigerant pressure pulsation continuously acts on the diaphragm with good elasticity, the diaphragm can do periodic vibration along with the frequency of the refrigerant pressure pulsation, and the reciprocating motion of the diaphragm consumes the energy of the refrigerant pressure pulsation. When the frequency of the refrigerant pressure pulsation is the same as the natural frequency of the diaphragm, the amplitude of the vibration of the diaphragm is the largest, and the energy consumed by the diaphragm in the refrigerant pressure pulsation is the largest at the moment. After the energy of the refrigerant pressure pulsation is attenuated, the pipeline vibration caused by the refrigerant pressure pulsation is also reduced.
When the cylinder 2 is full of refrigerant, the pressure of the refrigerant in the pipeline 1 and the pressure of the cylinder 2 keep static pressure balance. At this moment, the pipeline 1, the diaphragm, the cylinder 2 and the through hole 3 without the diaphragm form a Helmholtz noise elimination system together, and when sound waves generated by pressure pulsation of the refrigerant pass through the through hole 3 without the diaphragm, the noise generated by the pressure pulsation is weakened under the action of the Helmholtz noise elimination system. When the noise frequency generated by the pressure pulsation of the refrigerant is close to the silencing frequency of the Helmholtz silencer, the refrigerant of the hole neck of the through hole 3 without the diaphragm can vibrate, and in the vibration process, the sound energy is consumed due to the fact that the frictional resistance is overcome, and the silencing effect is finally achieved.
Example 2
The other structure of this embodiment is the same as that of embodiment 1 except that when the inside of the cylinder 2 has both the through-hole 3 provided with the covering member 4 and a plurality of the through-holes 3 not provided with the covering member 4, a partition plate is provided inside the cylinder 2 to partition the cylinder 2 into a plurality of closed spaces and to allow the through-hole 3 not provided with the covering member 4 to be present inside each of the closed spaces. The through hole 3 provided with the covering part 4 and the through holes 3 not provided with the covering part 4 are grouped through the partition board, each group corresponds to a closed space, each closed space is ensured to be provided with the through hole 3 not provided with the covering part 4, each closed space is provided with the silencing hole, when the through hole 3 of the covering part 4 is not arranged in the closed space, the noise generated by the refrigerant pressure pulsation is only solved, when the through hole 3 of the covering part 4 is arranged in the closed space, the vibration and the noise generated by the refrigerant pressure pulsation can be simultaneously solved, and the device for attenuating the refrigerant pressure pulsation can be regarded as being formed by connecting at least one device monomer for attenuating the refrigerant pressure pulsation and at least one Helmholtz silencing device monomer in series. Meanwhile, the number and the size of the through holes 3 in each independent closed space and the size of the covering part 4 are different, so that the frequency of pressure pulsation which can be eliminated by each independent closed space is different, when a refrigerant passes through each independent closed space, vibration and noise generated by the refrigerant pressure pulsation with corresponding frequency can be eliminated, and finally, the vibration and the noise generated by the refrigerant pressure pulsation with various frequencies can be eliminated by using a plurality of closed spaces connected in series.
Example 3
The other structure of this embodiment is the same as that of embodiment 1 except that the pipe 1 is sleeved with a plurality of cylinders 2 and the pipe 1 inside each cylinder 2 has the through hole 3 without the covering member 4. The pipe 1 is sleeved with a plurality of cylinders 2, and each cylinder 2 is ensured to be provided with a through hole 3 without a covering part 4, so that each cylinder 2 is internally provided with a silencing hole, when the through hole 3 without the covering part 4 is arranged in the cylinder, the silencing hole only solves the noise generated by the pressure pulsation of the refrigerant, and when the through hole 3 with the covering part 4 is arranged in the cylinder, the silencing hole can simultaneously solve the vibration and the noise generated by the pressure pulsation of the refrigerant, and therefore, the device for attenuating the pressure pulsation of the refrigerant can be regarded as being formed by connecting at least one device monomer for attenuating the pressure pulsation of the refrigerant and at least one Helmholtz silencing device monomer in series. Meanwhile, the number and the size of the through holes 3 in each independent cylinder 2 and the size of the covering part 4 are different, so that the frequency of pressure pulsation which can be eliminated by each independent cylinder 2 is different, when a refrigerant passes through each independent cylinder 2, vibration and noise generated by refrigerant pressure pulsation of corresponding frequency can be eliminated, and finally, vibration and noise generated by refrigerant pressure pulsation of various frequencies can be eliminated by using a plurality of cylinders 2 connected in series.
Example 4
The embodiment provides an air conditioner, the air conditioner uses the device for attenuating pressure pulsation of refrigerant described in embodiment 1, embodiment 2, or embodiment 3, because a plurality of through holes 3 are formed in the pipeline 1, and a proper cylinder 2 is selected to be sleeved on the pipeline 1, so that the through holes 3 are communicated with the inside of the cylinder 2, meanwhile, a part of the through holes 3 are used as silencing holes, and a covering part 4 is arranged on the other part of the through holes 3, thereby forming a fluid damping system and a helmholtz silencing system which are connected in parallel. By using the fluid vibration reduction system and the Helmholtz noise elimination system of the refrigerant pressure pulsation attenuation device, the vibration generated by refrigerant pressure pulsation is attenuated, meanwhile, the noise generated by the refrigerant pressure pulsation is eliminated, and the problems of the vibration and the noise generated by the pressure pulsation of the air conditioner are solved.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. The utility model provides a device of decay refrigerant pressure pulsation, includes the pipeline, its characterized in that: the pipeline is sleeved with a cylinder body, the pipeline is provided with a plurality of through holes, the through holes are communicated with the inside of the cylinder body, and a covering component is arranged in part of the through holes; the pipeline is sleeved with a plurality of cylinders, and the through hole without a covering part is arranged on the pipeline in each cylinder; the covering member is a diaphragm having a size larger than that of the through hole in which the diaphragm is provided; when the number of the through holes provided with the diaphragms is multiple, the size of each through hole provided with the diaphragms is different, the thickness of each diaphragm is the same, and the areas of the diaphragms are different.
2. The apparatus for attenuating refrigerant pressure pulsation as claimed in claim 1, wherein: the material of the diaphragm is consistent with that of the pipeline.
3. The apparatus for attenuating refrigerant pressure pulsation as claimed in claim 1, wherein: the through holes without the covering parts are consistent in size, the through holes without the covering parts are r in radius, d in diameter, S in area, t in depth, V in volume, c in sound velocity, and f in Helmholtz noise elimination frequency0The following formula is satisfied:
4. the apparatus for attenuating refrigerant pressure pulsation as claimed in claim 1, wherein: when the interior of the cylinder body has both the through-hole provided with the covering member and the plurality of through-holes not provided with the covering member, the interior of the cylinder body is provided with a partition plate that partitions the cylinder body into a plurality of closed spaces and allows the interior of each of the closed spaces to have the through-hole not provided with the covering member.
5. The apparatus for attenuating refrigerant pressure pulsation as claimed in claim 1, wherein: the inner diameters of the two ports of the cylinder body are larger than the outer diameter of the pipeline.
6. An air conditioner, characterized in that: an apparatus for attenuating refrigerant pressure pulsation according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921590455.8U CN211574502U (en) | 2019-09-24 | 2019-09-24 | Device for attenuating refrigerant pressure pulsation and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921590455.8U CN211574502U (en) | 2019-09-24 | 2019-09-24 | Device for attenuating refrigerant pressure pulsation and air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN211574502U true CN211574502U (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921590455.8U Active CN211574502U (en) | 2019-09-24 | 2019-09-24 | Device for attenuating refrigerant pressure pulsation and air conditioner |
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| CN (1) | CN211574502U (en) |
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- 2019-09-24 CN CN201921590455.8U patent/CN211574502U/en active Active
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