CN211648463U - Compressor, compressor assembly, heat exchange system and electrical equipment - Google Patents
Compressor, compressor assembly, heat exchange system and electrical equipment Download PDFInfo
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- CN211648463U CN211648463U CN201922379856.5U CN201922379856U CN211648463U CN 211648463 U CN211648463 U CN 211648463U CN 201922379856 U CN201922379856 U CN 201922379856U CN 211648463 U CN211648463 U CN 211648463U
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Abstract
The utility model relates to a compressor technical field provides a compressor, compressor unit spare, heat exchange system and electrical equipment. Wherein, the compressor includes: the air conditioner comprises a shell, a first air inlet, a second air inlet, a first air outlet, a second air outlet and a second air outlet, wherein the shell limits a first cavity and a second cavity, a first air exhaust structure and a second air exhaust structure are arranged on the shell, the first air exhaust structure is communicated with the first cavity, and the second air exhaust structure is communicated with the second cavity; the compression mechanism is internally provided with a first compression cavity and a second compression cavity, the first compression cavity is communicated with the first cavity, and the second compression cavity is communicated with the second cavity. The utility model provides a compressor, compressor unit spare, heat exchange system and electrical equipment realize double exhaust function, solve the oil-gas separation problem simultaneously.
Description
Technical Field
The utility model relates to a compressor technical field especially relates to compressor, compressor unit spare, heat exchange system and electrical equipment.
Background
The compressor is widely applied to the field of electrical equipment such as air conditioners, refrigerators, heat pump dish washing machines, heat pump clothes dryers and the like. With the development of the technology, the double heat pumps are adopted to circularly realize the staged heating, the energy is utilized in a stepped manner, the thermodynamic performance of the heat pump system can be effectively improved, but the compressor in the current market is of a single exhaust structure and cannot meet the requirement of staged compression.
The existing single-exhaust compressor is adopted to heat the heat pump in a circulating and grading manner, two compressors are needed, the cost of the heat pump product is increased, the two compressors occupy large space, and the volume and the weight of the heat pump product are increased. In addition, the exhaust gas of the compressor is separated through the oil-gas separator, and the oil-gas separator has large volume and weight, so that the product cost and the occupied space of the compressor are increased, and the requirements of light weight and miniaturization are difficult to meet.
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 a compressor realizes the double exhaust function, solves the oil-gas separation problem simultaneously.
The utility model discloses still provide a compressor unit spare.
The utility model discloses still provide a heat exchange system.
The utility model discloses still provide an electrical equipment.
According to the utility model discloses compressor of first aspect embodiment includes:
the air conditioner comprises a shell, a first air inlet, a second air inlet, a first air outlet, a second air outlet and a second air outlet, wherein the shell limits a first cavity and a second cavity, a first air exhaust structure and a second air exhaust structure are arranged on the shell, the first air exhaust structure is communicated with the first cavity, and the second air exhaust structure is communicated with the second cavity;
the compression mechanism is internally provided with a first compression cavity and a second compression cavity, the first compression cavity is communicated with the first cavity, and the second compression cavity is communicated with the second cavity.
According to the compressor provided by the embodiment of the utility model, the first compression cavity and the second compression cavity are arranged in the compression mechanism, the first compressed gas and the second compressed gas are discharged, the first compressed gas is discharged after passing through the first cavity and the first exhaust structure, the second compressed gas is discharged after passing through the second cavity and the second exhaust structure, one compressor has two paths of independent exhaust, the functions of the two compressors are realized, and the cost, the volume and the weight of the product are reduced; in addition, the first cavity and the second cavity in the shell have the functions of an oil-gas separator, the oil-gas separator does not need to be additionally arranged, and the cost, the volume and the weight of the product are further reduced; realize the double exhaust function, solve the oil separation problem simultaneously.
According to the utility model discloses an embodiment, compression mechanism locates in the first cavity, the space of make full use of first cavity to fluid after the separation of first cavity can directly be used for the lubrication of parts such as compression mechanism.
According to the utility model discloses an embodiment, first cavity with be equipped with oil return part between the second cavity to in the fluid in the second cavity flows back to first cavity, the fluid after the make full use of separation.
According to the utility model discloses an embodiment, the position of oil return part is less than the second compression chamber with the intercommunication position of second cavity avoids the second compressed gas to flow back to in the first cavity through the oil return part as far as possible, prevents first compressed gas and the mixture of second compressed gas, guarantees two carminative independencies of way.
According to the utility model discloses an embodiment, the exhaust pressure in first compression chamber is less than the exhaust pressure in second compression chamber utilizes the pressure differential of first cavity and second cavity to make fluid flow back in the first cavity, simplifies oil return part's structure.
According to the utility model discloses an embodiment, the casing includes first casing and locates the second casing in the first casing outside, first casing restricts out first cavity, first casing with restrict out between the second casing the second cavity, the convenience is reequiped to current structure to the structure is nimble.
According to the utility model discloses an embodiment, first exhaust structure connect in the top of first casing, second exhaust structure connect in the top of second casing, accord with the characteristic that gas flows upwards, help the exhaust.
According to the utility model discloses an embodiment, the second casing cover is located the local outer wall or the whole outer wall of first casing, the structure of second casing is nimble.
According to the utility model discloses an embodiment, work as first cavity with be equipped with oil return part between the second cavity, be constructed with the oil gallery on the first casing, through the oil gallery oil return, simplify the structure.
According to the utility model discloses an embodiment, compression mechanism still includes:
the first air cylinder comprises a first connecting channel and a first air inlet channel, the first air cylinder is internally provided with a first compression cavity and a first suction cavity, and the first air inlet channel is communicated with the first suction cavity; the first connecting passage communicates the second compression chamber with the second chamber, and the first connecting passage and the first intake passage are located on opposite sides of the first cylinder. The compressor is beneficial to ensuring the balanced stress of the compression mechanism and the shell, and the stability of the compressor is improved.
According to the utility model discloses an embodiment, compression mechanism still includes:
the second air cylinder comprises a second connecting channel and a second air inlet channel, the second air cylinder is limited to form a second compression cavity and a second air suction cavity, and the second air inlet channel is communicated with the second air suction cavity; the second connecting passage is communicated with the second compression cavity and the second cavity, and the second connecting passage and the second air inlet passage are positioned on the opposite sides of the second cylinder. Further guarantee the balanced atress of compression mechanism and first casing, promote compressor stability.
According to the utility model discloses an embodiment, the casing still restricts out the third cavity, still be equipped with the chamber of breathing in the compression mechanism, the chamber of breathing in with third cavity intercommunication. Gas enters the air suction cavity, gas-liquid separation is carried out in the third cavity, the third cavity has the function of a liquid storage device, the liquid storage device does not need to be independently arranged, the structure is simplified, and the weight is reduced.
According to the utility model discloses compressor unit spare of second aspect embodiment, including the reservoir with the compressor, the reservoir with compression mechanism's suction chamber intercommunication.
According to the utility model discloses heat exchange system of third aspect embodiment, including two heat exchange branch roads and the compressor, and every the heat exchange branch road all includes condenser, throttling arrangement and evaporimeter, one of them the condenser entry intercommunication of heat exchange branch road first exhaust structure, another the condenser entry intercommunication of heat exchange branch road second exhaust structure.
According to the utility model discloses electrical equipment of fourth aspect embodiment still includes heat exchange system.
The embodiment of the utility model provides an in above-mentioned one or more technical scheme, one of following technological effect has at least: the embodiment of the utility model comprises a shell, wherein the shell limits a first cavity and a second cavity, and a first exhaust structure and a second exhaust structure are arranged on the shell; a first compression cavity and a second compression cavity are arranged in the compression mechanism; the first compressed gas discharged from the first compression cavity enters the first cavity and is discharged through the first exhaust structure, and meanwhile, the first compressed gas is subjected to oil-gas separation in the first cavity; the second compressed gas discharged from the second compression cavity enters the second cavity and is discharged through the second exhaust structure, and meanwhile, the second compressed gas is subjected to oil-gas separation in the second cavity, so that the double-exhaust function is realized, the problem of oil-gas separation is solved, an oil-gas separator is not required to be additionally arranged, and the cost, the volume and the weight of the product are further reduced.
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
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic perspective view illustrating a connection state between a compressor and a liquid reservoir according to an embodiment of the present invention;
fig. 2 is a schematic top view of the structure shown in fig. 1 illustrating a connection state between the compressor and the liquid reservoir according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of a-a in fig. 2 of a compressor according to an embodiment of the present invention;
fig. 4 is a schematic cross-sectional structural diagram of B-B in fig. 2 of the compressor provided by the embodiment of the present invention.
Reference numerals:
1: a housing; 11: a first exhaust structure; 12: a second exhaust structure; 13: a first cavity; 14: a second cavity; 15: a first housing; 151: an oil return hole; 16: a second housing;
2: a compression mechanism; 21: a first cylinder body; 211: a first compression chamber; 212: a first connecting channel; 213: a first air intake passage; 22: a first rotor; 23: a second cylinder body; 231: a second compression chamber; 232: a second intake passage; 24: a second rotor; 25: a first muffler; 26: a second muffler; 261: an anechoic chamber; 27: a first separator; 28: a second separator;
3: a reservoir; 31: a first inlet; 32: a first outlet; 33: a second outlet;
4: a machine base; 5: a drive mechanism; 51: an eccentric crankshaft.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
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 an embodiment 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.
Referring to fig. 1 to 4, an embodiment of the present invention provides a compressor, including: the exhaust device comprises a shell 1, a first exhaust structure 11 and a second exhaust structure 12 are arranged on the shell 1, the first exhaust structure 11 is communicated with the first cavity 13, and the second exhaust structure 12 is communicated with the second cavity 14; the compressing mechanism 2 is provided with a first compressing cavity 211 and a second compressing cavity 231 in the compressing mechanism 2, the first compressing cavity 211 is communicated with the first cavity 13, and the second compressing cavity 231 is communicated with the second cavity 14.
The first compression cavity 211, the first cavity 13 and the first exhaust structure 11 form a first exhaust channel, the second compression cavity 231, the second cavity 14 and the second exhaust structure 12 form a second exhaust channel, and the two exhaust channels are not communicated to independently exhaust, so that the compressor can exhaust two paths of independent compressed gas, and the compressor can be used for a heat exchange system with double heat exchange branches, such as a double heat pump cycle, to perform staged heating. Of course, the compressor of the present embodiment is not limited to the heat exchange system with two heat exchange branches.
The first chamber 13 provides a space for oil-gas separation for the first compressed gas discharged from the first compression chamber 211, and the second chamber 14 provides a space for oil-gas separation for the second compressed gas discharged from the second compression chamber 231. And then the first cavity 13 and the second cavity 14 play the role of an oil-gas separator, and the oil return of the double-exhaust compressor system is realized through the improvement of the structure of the shell 1 without adding an external oil-gas separator.
Wherein the pressure of the first compressed gas and the pressure of the second compressed gas can be the same or different. When the pressure of the first compressed gas is different from that of the second compressed gas, one compressor can output different exhaust pressures, so that the method is suitable for double-heat-pump circulation of staged heating, energy cascade utilization is carried out, and the thermodynamic performance of a heat pump system is effectively improved. The different pressures of the first compressed gas and the second compressed gas can be realized by the following steps: the opening pressures of the exhaust valves corresponding to the first compression chamber 211 and the second compression chamber 231 are different.
The compressor of the embodiment is suitable for compressors with vertical structures or horizontal structures, the first compression cavity 211 and the second compression cavity 231 are adopted for gas compression, and the first compressed gas and the second compressed gas are discharged, so that one compressor realizes the functions of two compressors, and the cost, the volume and the weight of products are reduced; in addition, the shell 1 has the function of an oil-gas separator, and the oil-gas separator is not required to be additionally arranged, so that the cost, the volume and the weight of the product are further reduced; realize the double exhaust function, solve the oil separation problem simultaneously.
The first exhaust structure 11 and the second exhaust structure 12 may be pipe fittings connected to the housing 1, or orifices formed in the housing 1, or may be other structures capable of guiding out the compressed gas, and details thereof are not repeated herein.
In another embodiment, as shown in fig. 3 and 4, the compression mechanism 2 is disposed in the first cavity 13, the first compressed gas directly performs oil-gas separation in the first cavity 13, the space of the first cavity 13 is fully utilized, the structure is simplified, and the separated oil can be directly used for lubricating the compression mechanism 2 and other components, so that the lubricating effect is good.
When the compressor is a vertical rotary compressor, first compressed gas passes through the exhaust valve plate and then passes through the driving mechanism 5 (comprising a motor, a crankshaft and the like), in the process, oil carried by the first compressed gas is separated, and the oil returns to the oil pool through gravity.
In another embodiment, an oil return component is provided between the first cavity 13 and the second cavity 14, so that the oil separated from the second cavity 14 flows back into the first cavity 13, and the oil is used for lubricating the components of the compression mechanism 2 and the like in the first cavity 13.
The oil return component may be a pipe connecting the first cavity 13 and the second cavity 14, or an aperture formed in a wall surface of a corresponding portion of the first cavity 13 and the second cavity 14, or a valve body disposed between the first cavity 13 and the second cavity 14. When the oil return part is a valve body, the valve body can be an electromagnetic valve or a floating oil valve, and the electromagnetic valve or the floating oil valve can be opened and closed according to requirements.
In another embodiment, the oil return position of the oil return member is lower than the communication position between the second compression cavity 231 and the second cavity 14, that is, the position where the second compressed gas is introduced into the second cavity 14 is higher than the oil return position of the oil return member, so that the second compressed gas is prevented from passing through the oil return member in the process of flowing upwards, overflow of the second compressed gas to the first cavity 13 through the oil return member is further reduced, mixing of the first compressed gas and the second compressed gas is reduced, and independence of two-way exhaust of the first exhaust passage and the second exhaust passage is ensured as much as possible.
When the pressure of the first compressed gas is different from that of the second compressed gas, the mixing of the first compressed gas and the second compressed gas is reduced, and the exhaust pressure of the two paths of compressed gases is ensured.
Furthermore, the oil return structure is located as close to the bottom of the shell 1 as possible, so that oil can conveniently flow back, and gas passing is reduced.
In another embodiment, the discharge pressure of the first compression chamber 211 is less than the discharge pressure of the second compression chamber 231, such that the pressure in the first chamber 13 is less than the pressure in the second chamber 14, and the discharge pressure of the first discharge structure 11 is less than the discharge pressure of the second discharge structure 12. The pressure in the first cavity 13 is smaller than the pressure in the second cavity 14, so that pressure difference is formed on two sides of the oil return structure, oil in the second cavity 14 can flow back into the first cavity 13 under the action of the pressure difference, the oil return structure can be a normally open structure such as a pipe fitting and an orifice, the oil return mode is simple and convenient, and oil return can be realized without additionally arranging structures such as a pump valve.
It should be noted that, when the oil return structure is a normally open structure such as a pipe fitting or an orifice, the opening area of the oil return structure is determined according to the pressure difference between the first cavity 13 and the second cavity 14, and the oil separated from the second cavity 14 is sent back to the first cavity 13. Meanwhile, under the condition of meeting the oil return requirement, the opening area of the oil return structure is as small as possible, the oil return amount is controlled through the opening area of the oil return structure, and excessive second compressed gas is prevented from flowing back into the first cavity 13 through the oil return structure. Specifically, when the oil return structure is a round hole or a round pipe, the diameter of the round hole and the diameter of the round pipe are as small as possible.
In another embodiment, the difference from the above embodiment is that the housing 1 further comprises a main cavity, the first cavity 13 and the second cavity 14 are independent from the main cavity, and the compression mechanism 2 is arranged in the main cavity. The first compressed gas is subjected to oil-gas separation in the first cavity 13, and the second compressed gas is subjected to oil-gas separation in the second cavity 14.
At this moment, oil return structures are arranged between the first cavity 13 and the main cavity and between the second cavity 14 and the main cavity, so that oil obtained by separating the first cavity 13 from the second cavity 14 is fully utilized. The specific structure of the oil return structure may be the same as that of the above-described embodiment.
In another embodiment, the housing 1 includes a first housing 15 and a second housing 16 disposed outside the first housing 15, the first housing 15 defining the first cavity 13, and the first housing 15 and the second housing 16 defining the second cavity 14 therebetween.
The first shell 15 can be an existing compressor shell, and the second shell 16 can be additionally arranged on the first shell 15 in a welding mode and the like, so that the existing compressor shell is conveniently modified, and the cost of re-opening the mold is reduced. After the second casing 16 is connected to the first casing 15, it is necessary to ensure the sealing property between the second casing 16 and the first casing 15 to prevent the leakage of the compressed gas. Of course, the first housing 15 and the second housing 16 may be subjected to mold opening again.
In another embodiment, the first exhaust structure 11 is attached to the top of the first housing 15 and the second exhaust structure 12 is attached to the top of the second housing 16 to accommodate the upward flow characteristics of the gases and facilitate the exhaust.
When the compressor is a vertical structure, the connecting position of the first exhaust structure 11 and the second exhaust structure 12 is beneficial to increasing the flow path of compressed gas, and further the oil-gas separation effect is improved.
In another embodiment, the second housing 16 covers a part of or all of the outer wall of the first housing 15, and the second housing 16 has various shapes, flexible structure and wide application range and can be arranged as required.
Wherein, the second casing 16 covers the local outer wall of locating first casing 15, and it can only to satisfy the oil-gas separation demand, and other structures can also be connected to the part that first casing 15 was not covered by second casing 16 and is established. The second shell 16 covers the whole outer wall of the first shell 15, namely the second shell 16 surrounds the first shell 15, the space of the second cavity 14 is large, and the oil-gas separation effect is good; and the shell 1 forms a double-layer structure and can also play a role in noise elimination and reduction.
In another embodiment, when the first cavity 13 and the second cavity 14 are provided with oil return parts, the oil return parts are oil return holes 151 formed in the first housing 15. The oil return hole 151 has a simple structure, the first housing 15 is easy and convenient to machine, the housing 1 and the compressor structure are simplified, and the cost of the compressor is reduced.
Further, one or more oil return holes 151 are formed in the wall surface of the first housing 15 corresponding to the second cavity 14 to meet the oil return requirement, and the oil return holes can be arranged according to actual requirements. Specifically, the oil return hole 151 is located lower than the communication position between the second compression chamber 231 and the second cavity 14, and is located as close to the bottom of the first casing 15 as possible.
In another embodiment, an oil separating component may be further disposed in the second cavity 14 to promote oil-gas separation and improve the oil-gas separation effect. Wherein, the oil distribution part can be for locating pipe fitting, panel etc. in the second cavity 14, can play the structure that promotes oil-gas separation all can, and it is no longer repeated here.
In another embodiment, the housing 1 further defines a third cavity (not shown), and the compression mechanism 2 further has a suction cavity therein, and the suction cavity is communicated with the third cavity. Before the gas enters the air suction cavity, gas-liquid separation is carried out in the third cavity, the third cavity has the function of the liquid storage device 3, the liquid storage device 3 is also integrated on the shell 1, the liquid storage device 3 does not need to be additionally configured, the size is reduced, and the space is saved. And, the setting of third cavity can also utilize the cold volume of the gas or liquid in the reservoir 3 for cool down casing 1.
Specifically, the housing 1 further includes a third housing (not shown), the third housing and the second housing 16 are both disposed outside the first housing 15, and the third housing and the second housing 16 cover a partial outer wall of the first housing 15. In addition, when the second casing 16 covers the whole outer wall of the first casing 15, the third casing can also cover the outer wall of the second casing 16; alternatively, the third casing may cover the entire outer wall of the first casing 15, and in this case, the second casing 16 may cover the outer wall of the third casing.
In another embodiment, the difference from the above embodiments is that a partition structure (not shown) is provided in the housing 1, the partition structure divides the space in the housing 1 into the first cavity 13 and the second cavity 14, and the housing 1 does not need to be provided with the first housing 15 and the second housing 16, thereby facilitating the integral processing and forming. According to actual needs, the separation structure can also separate a third cavity in the housing 1.
Next, an example of the compression mechanism 2 will be explained.
In another embodiment, as shown in fig. 3 and 4, the compression mechanism 2 further includes: a second cylinder including a second connection passage (not shown) and a second air intake passage 232, the second cylinder defining a second compression chamber 231 and a second air intake chamber therein, the second air intake passage 232 communicating with the second air intake chamber; the second connecting passage communicates the second chamber 14 with the second compression chamber 231, and the second connecting passage and the second intake passage 232 are located at opposite sides of the second cylinder.
When second inlet channel 232 is connected with the pipe fitting that is used for admitting air, second connecting channel with be used for the pipe fitting of giving vent to anger, second connecting channel sets up with second inlet channel 232 is relative, helps guaranteeing the symmetry of second cylinder and 15 both sides atresss of first casing, has also promoted compressing mechanism 2's stability, and then guarantees the stationarity of compressing mechanism 2 compression process operation.
In another embodiment, the compression mechanism 2 further includes: and the second muffler 26, a silencing cavity 261 of the second muffler 26 is communicated with the second compression cavity 231 and the second connecting channel, and the second compressed gas enters the second cavity 14 after being silenced and denoised by the second muffler 26. When the compressor is used for the domestic appliance field, can reduce the noise that domestic appliance produced, promote the silence effect to help promoting user experience.
In another embodiment, the difference from the above embodiment is that the muffling cavity 261 of the second muffler 26 directly communicates with the second cavity 14, and the second cylinder does not need to be provided with a second connecting channel, so that the structure of the second cylinder is simplified. At this time, the silencing exhaust port corresponding to the silencing chamber 261 may be directly butted against the opening of the first housing 15, or connected by a pipe.
In the above embodiment, when the noise generated by the gas is within the acceptable range, the second muffler 26 may not be provided in the compression mechanism 2, so that the cost can be reduced and the volume of the compression mechanism 2 can be reduced.
In another embodiment, the compression mechanism 2 further includes: a first cylinder including a first connection passage 212 and a first air intake passage 213, the first cylinder having a first compression chamber 211 and a first suction chamber formed therein, the first air intake passage 213 being communicated with the first suction chamber; the first connection passage 212 communicates the second compression chamber 231 with the second chamber 14, and the first connection passage 212 and the first intake passage 213 are located at opposite sides of the first cylinder. Wherein the first connection passage 212 is independent of the first compression chamber 211 and the first suction chamber, and serves only to discharge the second compressed gas.
The first connection passage 212 directly connects the second chamber 14 and the second compression chamber 231, and at this time, the second connection passage does not need to be provided on the second cylinder.
When the second cylinder is limited by the installation space or the structural shape, the exhaust port of the muffling chamber 261 is not directly connected to the opening of the first housing 15, and the exhaust port is connected to the first compression chamber 231 by the first connecting channel 212, so that the second compression chamber 231 is connected to the second compression chamber 14. The first connecting passage 212 is opposite to the first air inlet passage 213, and can also enable the two sides of the first air cylinder to be symmetrically connected with the pipe fitting, so that the two sides of the first air cylinder are symmetrically stressed, the symmetry and the stability of the first air cylinder are improved, and the running stability of the compression mechanism 2 is further improved.
In one embodiment, the first cylinder is arranged coaxially with the second cylinder, the first cylinder comprising a first cylinder body 21 and the second cylinder comprising a second cylinder body 23. A second muffler 26, a second partition 28, a second cylinder body 23, a first partition 27 and the first cylinder body 21 are sequentially arranged from bottom to top along the axial direction of the first cylinder body 21 and the second cylinder body 23. The second partition plate 28, the second cylinder body 23, and the first partition plate 27 are all provided with through holes that are mutually communicated, and through flow passages are formed among the muffling chamber 261 of the second muffler 26, the through hole of the second partition plate 28, the through hole of the second cylinder body 23, the through hole of the first partition plate 27, and the first connecting passage 212. The second compressed gas sequentially flows through the second muffler 26, the through hole of the second partition 28, the through hole of the second cylinder body 23, the through hole of the first partition 27, the first connecting passage 212, and then enters the second chamber 14.
In the embodiment, the through flow channel is formed in the structural component of the compression mechanism 2, the additional arrangement of a pipe fitting is not needed, the structural component is reduced, the structure is simplified, the assembly is convenient, and the cost is reduced.
In the above embodiment, the two exhausts of the compressor depend on the internal compression of the cylinder, the structural form may be a rotary compressor, a piston compressor, a screw compressor, a centrifugal compressor, etc. with two compression cavities, and other structures with two compression cavities may also be possible, and the specific compression form is not limited, and is not described herein again.
Next, a vertical rotary compressor will be described as an example with reference to fig. 1 to 4.
The rotary compressor includes: casing 1, actuating mechanism 5, compressing mechanism 2 and frame 4, casing 1 connects in frame 4, and casing 1 is the vertical jar of body, and casing 1 includes first casing 15 and second casing 16, sets up actuating mechanism 5 and compressing mechanism 2 in the first casing 15, and actuating mechanism 5 locates compressing mechanism 2's top. Specifically, the driving mechanism 5 includes a driving motor and an eccentric crankshaft 51, and the driving motor drives the eccentric crankshaft 51 to rotate.
The compression mechanism 2 includes a first cylinder including a first cylinder body 21 and a first rotor 22, and a second cylinder including a second cylinder body 23 and a second rotor 24, the first rotor 22 and the second rotor 24 being connected to an eccentric crankshaft 51, and the eccentric crankshaft 51 rotating the first rotor 22 and the second rotor 24. The second cylinder body 23 is provided below the first cylinder body 21, and the first cylinder body 21 and the second cylinder body 23 are separated by a first partition plate 27.
An upper bearing is arranged above the first cylinder body 21, and a first separation structure is arranged between the first cylinder body 21 and the first rotor 22. The first partition plate 27, the first cylinder body 21, the first rotor 22, the first partition structure and the upper bearing define a first compression chamber 211 and a first suction chamber, which communicate with the first suction passage 213. The gas enters the first suction cavity and is compressed to form first compressed gas, the first compressed gas is discharged along the first compression cavity 211, then enters the first muffler 25 above the first cylinder body 21, enters the first cavity 13 after being muffled, and then is discharged from the first exhaust structure 11. Meanwhile, the first compressed gas is subjected to oil-gas separation in the first cavity 13.
A second partition plate 28 is arranged below the second cylinder body 23, and a second partition structure is arranged between the second cylinder body 23 and the second rotor 24. The second partition plate 28, the second cylinder body 23, the second rotor 24, the second partition structure and the first partition plate 27 define a second compression chamber 231 and a second suction chamber, which communicates with the second intake passage 232. The gas enters the second suction cavity and is compressed to form second compressed gas, the second compressed gas is discharged along the second compression cavity 231, then enters the second muffler 26 below the second cylinder body 23, enters the second cavity 14 after being muffled, and is discharged from the second exhaust structure 12. While the second compressed gas undergoes oil-gas separation in the second chamber 14. Wherein the first air intake passage 213 and the second air intake passage 232 correspond to different heights of the first housing 15 and are parallel.
The first muffler 25, the upper bearing, the first cylinder body 21, the first partition 27, the second cylinder body 23, the second partition 28, the second muffler 26, and the like are connected by fasteners such as bolts and screws, and mounting holes for connecting the fasteners are formed in the first muffler, the upper bearing, the first cylinder body 21, the second partition 27, the second cylinder body 23, the second partition 28, the second muffler, and the like.
The utility model discloses a another embodiment still provides a compressor unit spare, including reservoir 3 and the compressor in the above-mentioned embodiment, reservoir 3 and compression mechanism 2's the chamber intercommunication of breathing in, reservoir 3 is used for gas-liquid separation and lets in compression mechanism 2 with the gas after the separation. Before the air is sucked into the air suction cavity, the gas is subjected to gas-liquid separation in the liquid storage device 3 so as to remove liquid drops carried in the gas and avoid the liquid drops from interfering the operation of the compression mechanism 2. Reservoir 3 and compressor are the independent structure, and convenient the change, the structure is more nimble.
When the compressor assembly comprises an accumulator 3, no third cavity needs to be provided in the housing 1 of the compressor.
Specifically, the reservoir 3 includes a first inlet 31, a first outlet 32, and a second outlet 33, the first inlet 31 is used for gas to enter, the first outlet 32 is communicated with the first suction chamber of the first cylinder, and the second outlet 33 is communicated with the second suction chamber of the second cylinder. An accumulator 3 provides two gas paths to the compressor, simplifying the structure, volume and weight of the compressor assembly. The first inlet 31, the first outlet 32 and the second outlet 33 may be openings formed in the tank of the liquid reservoir 3 or openings of pipes disposed on the tank of the liquid reservoir 3.
Another embodiment of the present invention provides a heat exchange system, which includes two heat exchange branches and a compressor in the above embodiment, and each heat exchange branch includes a condenser, a throttling device, and an evaporator; the condenser inlet of one of the heat exchange branches is communicated with the first exhaust structure 11, and the condenser inlet of the other heat exchange branch is communicated with the second exhaust structure 12.
According to the system pressure of the two heat exchange branches, the opening pressure of the exhaust valve corresponding to the first compression cavity 211 and the opening pressure of the exhaust valve corresponding to the second compression cavity 231 are determined, and different exhaust pressures of the first exhaust channel and the second exhaust channel are achieved.
Further, the heat exchange system may be operated in a variety of ways, typically with the first discharge passage discharging a first compressed gas at a different pressure than the second discharge passage discharging a second compressed gas. Taking the compressor shown in fig. 1 to 4 as an example, the pressure of the first compressed gas discharged from the first exhaust passage is lower than the pressure of the second compressed gas discharged from the second exhaust passage, and the second cavity 14 is communicated with the oil sump in the first cavity 13 through the oil return structure, so that oil return is performed by using the pressure difference of the compressed gas, which helps to simplify the structure of the compressor and ensure the stability of the operation of the heat exchange system.
In another embodiment of the present invention, an electrical apparatus is provided, which further includes the heat exchange system in the above embodiment. The heat exchange systems of all the above embodiments can be adopted by the electrical equipment, so that at least the advantages brought by the above embodiments are achieved, and the details are not repeated herein.
The electrical equipment can be heat exchange equipment such as a refrigerator, an ice chest, an air conditioner and the like, and the electrical equipment can also be a dryer, a washing machine, a heat pump water heater, a heat pump clothes dryer or a heat pump dish washer and the like. Of course, the electrical equipment may also be other equipment applying the heat exchange system, and is not necessarily exhaustive here.
The above embodiments are merely illustrative, and not restrictive, of the present invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all of the technical solutions should be covered by the scope of the claims of the present invention.
Claims (15)
1. A compressor, comprising:
the air conditioner comprises a shell, a first air inlet, a second air inlet, a first air outlet, a second air outlet and a second air outlet, wherein the shell limits a first cavity and a second cavity, a first air exhaust structure and a second air exhaust structure are arranged on the shell, the first air exhaust structure is communicated with the first cavity, and the second air exhaust structure is communicated with the second cavity;
the compression mechanism is internally provided with a first compression cavity and a second compression cavity, the first compression cavity is communicated with the first cavity, and the second compression cavity is communicated with the second cavity.
2. The compressor of claim 1, wherein the compression mechanism is disposed within the first cavity.
3. The compressor of claim 2, wherein an oil return member is disposed between the first cavity and the second cavity.
4. The compressor of claim 3, wherein a position of the oil return member is lower than a position at which the second compression chamber communicates with the second chamber.
5. The compressor of claim 3 wherein a discharge pressure of said first compression chamber is less than a discharge pressure of said second compression chamber.
6. The compressor of any one of claims 1 to 5, wherein the housing comprises a first housing and a second housing disposed outside the first housing, the first housing defining the first cavity, the first housing and the second housing defining the second cavity therebetween.
7. The compressor of claim 6, wherein the first discharge structure is connected to a top of the first housing and the second discharge structure is connected to a top of the second housing.
8. The compressor of claim 6, wherein the second housing cover is provided to a partial outer wall or an entire outer wall of the first housing.
9. The compressor of claim 6, wherein when an oil return member is disposed between the first cavity and the second cavity, an oil return hole is formed in the first housing.
10. The compressor according to any one of claims 1 to 5, wherein the compression mechanism further comprises:
the first air cylinder comprises a first connecting channel and a first air inlet channel, the first air cylinder is internally provided with a first compression cavity and a first suction cavity, and the first air inlet channel is communicated with the first suction cavity;
the first connecting passage communicates the second compression chamber with the second chamber, and the first connecting passage and the first intake passage are located on opposite sides of the first cylinder.
11. The compressor according to any one of claims 1 to 5, wherein the compression mechanism further comprises:
the second air cylinder comprises a second connecting channel and a second air inlet channel, the second air cylinder is limited to form a second compression cavity and a second air suction cavity, and the second air inlet channel is communicated with the second air suction cavity;
the second connecting passage is communicated with the second compression cavity and the second cavity, and the second connecting passage and the second air inlet passage are positioned on the opposite sides of the second cylinder.
12. The compressor of claim 1, wherein the housing further defines a third cavity, and wherein a suction cavity is disposed within the compression mechanism, the suction cavity being in communication with the third cavity.
13. A compressor assembly comprising an accumulator and a compressor as claimed in any one of claims 1 to 11, said accumulator being in communication with a suction chamber of said compression mechanism.
14. A heat exchange system comprising two heat exchange branches, each of which comprises a condenser, a throttling device and an evaporator, characterized by further comprising a compressor according to any one of claims 1 to 12; the condenser inlet of one of the heat exchange branches is communicated with the first exhaust structure, and the condenser inlet of the other heat exchange branch is communicated with the second exhaust structure.
15. An electrical appliance, further comprising the heat exchange system of claim 14.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922379856.5U CN211648463U (en) | 2019-12-25 | 2019-12-25 | Compressor, compressor assembly, heat exchange system and electrical equipment |
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| CN201922379856.5U CN211648463U (en) | 2019-12-25 | 2019-12-25 | Compressor, compressor assembly, heat exchange system and electrical equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253458A (en) * | 2020-10-13 | 2021-01-22 | 珠海格力电器股份有限公司 | Double-shell compressor and air conditioner |
| CN112983826A (en) * | 2021-03-01 | 2021-06-18 | 李博志 | Middle-high pressure screw compressor |
-
2019
- 2019-12-25 CN CN201922379856.5U patent/CN211648463U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253458A (en) * | 2020-10-13 | 2021-01-22 | 珠海格力电器股份有限公司 | Double-shell compressor and air conditioner |
| CN112983826A (en) * | 2021-03-01 | 2021-06-18 | 李博志 | Middle-high pressure screw compressor |
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