CN208311040U - Compressor and refrigerating plant - Google Patents
Compressor and refrigerating plant Download PDFInfo
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- CN208311040U CN208311040U CN201820954197.6U CN201820954197U CN208311040U CN 208311040 U CN208311040 U CN 208311040U CN 201820954197 U CN201820954197 U CN 201820954197U CN 208311040 U CN208311040 U CN 208311040U
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- working chamber
- air intake
- intake passage
- heat exchanger
- compressor
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Abstract
The utility model relates to compressor fields, disclose a kind of compressor and refrigerating plant, wherein, the cylinder body (1) of the compressor includes the first working chamber (4) and the second working chamber (5), is provided with the first air intake passage (6) and first exhaust passage (7), the second air intake passage (8) and second exhaust channel (9) on the cylinder body；Wherein, the aspirated volume of first working chamber (4) is V1, the aspirated volume of second working chamber (5) is V2, the minimum flow area of first air intake passage (6) is S1, the minimum flow area of second air intake passage (8) is S2, S1 and S2 satisfaction: 1.25*V2/V1≤S2/S1.Through the above technical solutions, can reduce the inspiratory resistance loss of the second working chamber by the size of the first and second working chambers of design, the first and second air intake passages, improve the compression indicated efficiency of the second working chamber, improve the efficiency of compressor.
Description
Technical field
The utility model relates to compressor fields, more particularly to a kind of compressor and refrigerating plant.
Background technique
Air conditioner in heating technology, significantly decay by the heating capacity especially in low outside air temperature at present, can not
Reach the demand of user's calorific requirement.With the implementation of air-conditioning APF efficiency, the deficiency of air conditioner low temperature heating ability is outstanding day by day, needs
Seek solution, in addition country requires the efficiency of air-conditioning higher and higher, and efficiency grade is constantly rising.
In order to solve the problem, in recent years, by gas coolant injection mode apply on compressor and refrigerating plant by
Concern, especially achieves progress with the research of duplex-cylinder rotary compressor.Two cylinders of duplex cylinder compressor need to match each other
Close operation, for example, the volumes of two cylinders, air-breathing exhaust passage flow area etc. cooperation, if cooperation therebetween
It goes wrong, will affect the efficiency of compressor.
Utility model content
The purpose of the utility model is to provide a kind of compressors, to solve the problems, such as that compressor efficiency is not high.
To achieve the goals above, on the one hand the utility model provides a kind of compressor, wherein the compressor includes:
Cylinder body, the cylinder body include the cylinder wall for surrounding the first working chamber, are provided on the cylinder wall and the first work
The first air intake passage and first exhaust passage of chamber connection, are provided with the sliding vane groove extended from inside to outside on the cylinder wall；
Eccentric shaft in first working chamber is set,
Piston, the piston are set on the eccentric shaft, and the rotation of the eccentric shaft is able to drive the piston in institute
It states in the first working chamber and does eccentric rotary；
Slide plate, the slide plate are pivotably connected to the piston, the slide plate hermetically, be slidably inserted into the cunning
Film trap, forms the second working chamber between the slide plate and the sliding vane groove, the piston can drive the slide plate in the cunning
It moves in film trap to change the volume of second working chamber, is provided on the cylinder wall and is connected to second working chamber
Second air intake passage and second exhaust channel；
Wherein, the aspirated volume of first working chamber is V1, and the aspirated volume of the second working chamber is V2, and described first inhales
The minimum flow area in gas channel is S1, and the minimum flow area of the second air intake passage is S2, S1 and S2 satisfaction: 1.25*V2/V1
≤S2/S1。
Preferably, the minimum flow area of the first exhaust passage is A1, and the minimum in the second exhaust channel is through-flow
Area is that A2, A1 and A2 meet: 1.52*V2/V1≤A2/A1.
Preferably, S1 and S2 meets: S2/S1≤4.6*V2/V1.
Preferably, A1 and A2 meets: A2/A1≤3.7*V2/V1.
Preferably, first working chamber and the piston are respectively cylinder, and the piston can be described to fit in
The mode of the inner peripheral surface of cylinder wall does eccentric rotary.
Preferably, first air intake passage and the first exhaust passage are located at the sliding vane groove in circumferential direction
On two sides, the slide plate is identical in the height of central axial direction as first working chamber.
Preferably, filtration members are provided in second air intake passage.
In addition, the utility model additionally provides a kind of refrigerating plant, wherein the refrigerating plant is provided with above scheme institute
The compressor stated, the compressor include mixing chamber, and the first exhaust passage and the second exhaust channel are connected to described
Mixing chamber.
Preferably, the refrigerating plant includes gas-liquid separator, First Heat Exchanger, the second heat exchanger, first throttle part,
Two throttling elements, the gas-liquid separator are provided with entrance, gas vent, liquid outlet, the liquid outlet, second throttling
Part, second heat exchanger, first air intake passage are sequentially communicated, and the gas vent and second air intake passage connect
Logical, the mixing chamber, the First Heat Exchanger, the first throttle part, the entrance are sequentially communicated.
Preferably, the refrigerating plant includes four-way valve, and four connectors of the four-way valve are connected to described
Two heat exchangers, first air intake passage, the mixing chamber and the First Heat Exchanger, the four-way valve can be in first states
And second convert between state, in the first state, second heat exchanger is connected to described first by the four-way valve
Air intake passage, the mixing chamber are connected to the First Heat Exchanger by the four-way valve, in second state, described second
Heat exchanger is connected to the mixing chamber by the four-way valve, and the First Heat Exchanger is connected to described by the four-way valve
One air intake passage.
Through the above technical solutions, by the size of the first and second working chambers of design, the first and second air intake passages, it can
To reduce the inspiratory resistance loss of the second working chamber, the compression indicated efficiency of the second working chamber is improved, the efficiency of compressor is improved.
Detailed description of the invention
Fig. 1 is the cross-sectional view of compressor described in the utility model；
Fig. 2 is the schematic diagram of refrigerating plant described in the utility model；
Fig. 3 is the system circulation pressure-enthalpy chart of the utility model refrigerating plant；
Fig. 4 shows the changing rule of the second working chamber compression indicated efficiency of the utility model compressor；
Fig. 5 shows the changing rule of the second working chamber compression indicated efficiency of the utility model compressor.
Description of symbols
1 cylinder body, 2 piston
3 slide plate, 4 first working chamber
5 second working chamber, 6 first air intake passage
7 first exhaust passage, 8 second air intake passage
9 second exhaust channel, 10 sliding vane groove
11 gas-liquid separator, 12 second heat exchanger
13 second throttling element, 14 First Heat Exchanger
15 first throttle part, 16 four-way valve
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein
Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.
A kind of compressor of the utility model, wherein the compressor includes:
Cylinder body 1, the cylinder body 1 include the cylinder wall for surrounding the first working chamber 4, are provided with and the first work on the cylinder wall
Make the first air intake passage 6 and first exhaust passage 7 of the connection of chamber 4, is provided with the slide plate extended from inside to outside on the cylinder wall
Slot 10；
Eccentric shaft in first working chamber 4 is set,
Piston 2, the piston 2 are set on the eccentric shaft, and the rotation of the eccentric shaft is able to drive the piston 2 and exists
Eccentric rotary is done in first working chamber 4；
Slide plate 3, the slide plate 3 are pivotably connected to the piston 2, the slide plate 3 hermetically, be slidably inserted into institute
Sliding vane groove 10 is stated, forms the second working chamber 5 between the slide plate 3 and the sliding vane groove 10, the piston 2 can drive the cunning
Piece 3 is moved in the sliding vane groove 10 to change the volume of second working chamber 5, is provided on the cylinder wall and described the
Second air intake passage 8 of two working chambers 5 connection and second exhaust channel 9；
Wherein, the aspirated volume of first working chamber 4 is V1, and the aspirated volume of the second working chamber 5 is V2, described first
The minimum flow area of air intake passage 6 is S1, and the minimum flow area of the second air intake passage 8 is S2, S1 and S2 satisfaction: 1.25*
V2/V1≤S2/S1。
First working chamber 4 is the space between the inner wall of cylinder body 1 and the outside wall surface of piston 2, as the bias of piston 2 is transported
Dynamic, the spatial form of the first working chamber 4 changes, so as to suck fluid (gaseous state or liquid) from the first air intake passage 6
Or fluid is discharged from first exhaust passage 7；Second working chamber 5 is limited jointly by sliding vane groove 10 and slide plate 3, as slide plate 3 is in cunning
It is mobile that reciprocating linear is done in film trap 10, thus it is possible to vary the volume size of the second working chamber 5, and suck or compress discharge fluid.
The aspirated volume V1 of first working chamber 4 refers to the maximum volume of the first working chamber 4, i.e., whole volumes, the second working chamber 5
Aspirated volume V2 also refer to the maximum volume of the second working chamber 5.The air-breathing and exhaust of first working chamber 4 and the second working chamber 5
Process carries out and mutually indepedent simultaneously.
Generally, the design of the minimum flow area of air intake passage is designed according to aspirated volume, for Ordinary Compression
Machine, S2/S1=V2/V1 are the selections of a routine, but two cylinder (i.e. the first working chambers of the compressor of the utility model
4 with the second working chamber 5) pressure of inspiration(Pi) it is different, the pressure of inspiration(Pi) of the second cylinder (corresponding to the second working chamber 5) is higher than the first gas
The pressure of inspiration(Pi) of cylinder (corresponding to the first working chamber 4), the second cylinder air-breathing density is also above the first cylinder, if routinely designed
Then the loss of the second cylinder inspiratory resistance is larger relative to the first cylinder, and compression indicated efficiency is lower (as shown in Figure 4, to give the
Two cylinder indicated efficiency changing rules), in order to make the duplex cylinder compressor of the utility model have optimal efficiency, S1 and S2 meet:
1.25*V2/V1≤S2/S1。
Further, the minimum flow area of the first exhaust passage 7 is A1, the minimum in the second exhaust channel 9
Flow area is that A2, A1 and A2 meet: 1.52*V2/V1≤A2/A1.The minimum flow area of the first exhaust passage is A1,
The minimum flow area in second exhaust channel be A2, although the pressure at expulsion of two working chambers is identical, two working chambers because
Pressure of inspiration(Pi) difference causes exhaust valve to be switched on separately in time, if routinely Proportionality design exhaust valve, compressor indicated efficiency
Also relatively low (as shown in Figure 5, giving the second cylinder indicated efficiency changing rule), in order to make the duplex cylinder compressor of the utility model
There is optimal efficiency, A1 and A2 meet: 1.52*V2/V1≤A2/A1.
Further, S1 and S2 meets: S2/S1≤4.6*V2/V1.If the air-breathing area S2 of the second working chamber 5 is opposite
It is excessive, then it will lead to air-breathing and close delay, the second working chamber 5 compression indicated efficiency efficiency (as shown in Figure 4) is reduced, so more
Preferably, S1 and S2 meets: S2/S1≤4.6*V2/V1
Also, A1 and A2 meets: A2/A1≤3.7*V2/V1.If the leaving area A2 of the second working chamber 5 is relatively excessive,
It is bigger than normal then to will lead to 5 clearance volume of the second working chamber, can equally reduce the second working chamber 5 compression indicated efficiency (as shown in Figure 4),
A1 and A2 meets: A2/A1≤3.7*V2/V1.
Specifically, first working chamber 4 and the piston 2 are respectively cylinder, and the piston 2 can be to fit in
The mode for stating the inner peripheral surface of cylinder wall does eccentric rotary.As shown in Figure 1, piston 2 fits in the inner peripheral surface of cylinder wall, piston at this time
2 and slide plate 3 first working chamber 4 is divided for left and right two parts, when 2 eccentric rotary counterclockwise of piston, the fluid on right side can be compressed
And be discharged by first exhaust passage 7, meanwhile, the space in left side can gradually increase and pass through 6 suck stream of the first air intake passage
Body.Fig. 1 show the extreme position that slide plate 3 is extracted out from sliding vane groove 10, and when slide plate 3 is fully inserted into sliding vane groove 10, piston 2 is located at
Highest point in Fig. 1, the space of 2 two sides of piston communicates with each other at this time, and piston 2 starts again at when rotating counterclockwise 90, and slide plate 3 is gradually
The space of extraction, 3 left side of piston 2 and slide plate is gradually increased to suck fluid (until piston 2 again returns to highest point), right side
Space is gradually reduced and compression fluid and can be discharged by first exhaust passage 7 (until piston 2 again returns to highest point).
In addition, first air intake passage 6 and the first exhaust passage 7 are located at the sliding vane groove 10 in circumferential side
Upward two sides, the slide plate 3 are identical in the height of central axial direction as first working chamber 4.As shown in Figure 1, first
Air intake passage 6 and first exhaust passage 7 are located at the two sides of sliding vane groove 10, first exhaust passage 7 can close to sliding vane groove 10, thus
When can guarantee that piston 2 rotates counterclockwise to the right side of sliding vane groove 10, the space on piston 2 and the right side of slide plate 3 still with first row
Gas channel 7 is connected to, and compression fluid is sufficiently discharged.
In addition, being provided with filtration members in second air intake passage 8.On second air intake passage 8 of second working chamber 5
It is additionally provided with filter screen, because the second working chamber 5 can directly be connected with gas-liquid separator by air intake duct, setting filter screen is kept away
Exempt from impurity and be directly entered the second working chamber 5, improves compressor reliability.
In addition, the utility model additionally provides a kind of refrigerating plant, wherein the refrigerating plant is provided with above-described
Compressor, the compressor include mixing chamber, and the first exhaust passage 7 and the second exhaust channel 9 are connected to described mix
Close chamber.The mixing chamber can will be mixed from the fluid of the first working chamber 4 and the second working chamber 5, and be transported to others and set
It is standby, such as heat exchanger.
Specifically, the refrigerating plant includes gas-liquid separator 11, First Heat Exchanger 15, the second heat exchanger 12, first segment
Part 14, the second throttling element 13 are flowed, the gas-liquid separator 11 is provided with entrance, gas vent, liquid outlet, the liquid discharge
Mouth, second throttling element 13, second heat exchanger 12, first air intake passage 6 are sequentially communicated, the gas vent and
Second air intake passage 8 is connected to, the mixing chamber, the First Heat Exchanger 15, the first throttle part 14, the entrance according to
Secondary connection.
Fig. 3 is the system circulation pressure-enthalpy chart of the utility model refrigerating plant, illustrates the utility model in combination with Fig. 2
The working principle of refrigerating plant.By gas coolant from 1 isentropic Compression of suction condition point to exhaust condition point 2 in first working chamber 4,
Second working chamber 5 is by 3 isentropic Compression of saturated-vapor state point to exhaust condition point 3', and the high-temperature gas of 2 points and 3' points is in shell
Enter First Heat Exchanger 15 after internal mix, after exchanging heat by First Heat Exchanger 15, condensation to state point 5, state point 5 is through certain
It crosses and is cooled to state point 6, state point 6 throttles through first throttle part 14 to gas-liquid mixture phase point 7.Gas-liquid mixture phase point 7 is through gas
Gas-liquid separation is carried out after liquid/gas separator 11, the saturated-vapor state point 3 isolated enters the second working chamber 5；Through gas-liquid separator
Saturated liquid state point 8 after separation throttles through the second throttling element 13 to evaporating pressure state point 9, and two-phase state point 9 is through second
Low-temp low-pressure overheated gas state point 1 is formed after heat exchanger 12, is then gone through in the first working chamber 4.
In addition, the refrigerating plant includes four-way valve 16, four connectors of the four-way valve 16 are connected to described
Second heat exchanger 12, first air intake passage 6, the mixing chamber and the First Heat Exchanger 15, the four-way valve 16 can
It converts between the first state and a second state, in the first state, second heat exchanger 12 passes through the four-way valve 16
It is connected to first air intake passage 6, the mixing chamber is connected to the First Heat Exchanger 15 by the four-way valve 16, in institute
The second state is stated, second heat exchanger 12 is connected to the mixing chamber, the First Heat Exchanger 15 by the four-way valve 16
First air intake passage 6 is connected to by the four-way valve 16.That is, 16 property of can choose of four-way valve will be described mixed
It closes chamber and is connected to First Heat Exchanger 15 or the second heat exchanger 12, be simultaneously selectively selectively connected to the first air intake passage
Second heat exchanger 12 or First Heat Exchanger 15, to change the heat exchange mode of heat exchange cycle.
Preferred embodiments of the present invention, still, the utility model and unlimited are described in detail in conjunction with attached drawing above
In this.In the range of the technology design of the utility model, a variety of simple variants can be carried out to the technical solution of the utility model,
It is combined in any suitable manner including each particular technique feature, in order to avoid unnecessary repetition, the utility model
To various combinations of possible ways, no further explanation will be given.But these simple variants and combination equally should be considered as the utility model institute
Disclosure belongs to the protection scope of the utility model.
Claims (10)
1. a kind of compressor, which is characterized in that the compressor includes:
Cylinder body (1), the cylinder body (1) include the cylinder wall for surrounding the first working chamber (4), are provided on the cylinder wall and first
The first air intake passage (6) and first exhaust passage (7) of working chamber (4) connection, are provided on the cylinder wall and prolong from inside to outside
The sliding vane groove (10) stretched；
Eccentric shaft in first working chamber (4) is set,
Piston (2), the piston (2) are set on the eccentric shaft, and the rotation of the eccentric shaft is able to drive the piston (2)
Eccentric rotary is done in first working chamber (4)；
Slide plate (3), the slide plate (3) are pivotably connected to the piston (2), and the slide plate (3) hermetically, is slideably inserted
Enter the sliding vane groove (10), is formed between the slide plate (3) and the sliding vane groove (10) the second working chamber (5), the piston (2)
The slide plate (3) can be driven to be moved in the sliding vane groove (10) to change the volume of second working chamber (5), the cylinder
The second air intake passage (8) being connected to second working chamber (5) and second exhaust channel (9) are provided on body wall；
Wherein, the aspirated volume of first working chamber (4) is V1, and the aspirated volume of the second working chamber (5) is V2, described first
The minimum flow area of air intake passage (6) is S1, and the minimum flow area of second air intake passage (8) is full for S2, S1 and S2
Foot: 1.25*V2/V1≤S2/S1.
2. compressor according to claim 1, which is characterized in that the minimum flow area of the first exhaust passage (7)
For A1, the minimum flow area of the second exhaust channel (9) is A2, A1 and A2 satisfaction: 1.52*V2/V1≤A2/A1.
3. compressor according to claim 2, which is characterized in that S1 and S2 meets: S2/S1≤4.6*V2/V1.
4. compressor according to claim 2, which is characterized in that A1 and A2 meets: A2/A1≤3.7*V2/V1.
5. compressor according to claim 1, which is characterized in that first working chamber (4) and the piston (2) are respectively
For cylinder, the piston (2) can do eccentric rotary in a manner of fitting in the inner peripheral surface of the cylinder wall.
6. compressor according to claim 5, which is characterized in that first air intake passage (6) and the first exhaust
Channel (7) is located at the two sides of the sliding vane groove (10) in circumferential direction, the slide plate (3) and first working chamber
(4) identical in the height of central axial direction.
7. compressor according to claim 1, which is characterized in that be provided with filtration members in second air intake passage (8).
8. a kind of refrigerating plant, which is characterized in that the refrigerating plant is provided with pressure described in any one of claim 1-7
Contracting machine, the compressor include mixing chamber, and the first exhaust passage (7) and the second exhaust channel (9) are connected to described
Mixing chamber.
9. refrigerating plant according to claim 8, which is characterized in that the refrigerating plant include gas-liquid separator (11),
First Heat Exchanger (15), the second heat exchanger (12), first throttle part (14), the second throttling element (13), the gas-liquid separator
(11) entrance, gas vent, liquid outlet, the liquid outlet, second throttling element (13), second heat exchange are provided with
Device (12), first air intake passage (6) are sequentially communicated, and the gas vent is connected to second air intake passage (8), described
Mixing chamber, the First Heat Exchanger (15), the first throttle part (14), the entrance are sequentially communicated.
10. refrigerating plant according to claim 9, which is characterized in that the refrigerating plant includes four-way valve (16), described
Four connectors of four-way valve (16) are connected to second heat exchanger (12), first air intake passage (6), described mixed
Chamber and the First Heat Exchanger (15) are closed, the four-way valve (16) can convert between the first state and a second state, in institute
First state is stated, second heat exchanger (12) is connected to first air intake passage (6) by the four-way valve (16), described
Mixing chamber is connected to the First Heat Exchanger (15) by the four-way valve (16), in second state, second heat exchange
Device (12) is connected to the mixing chamber by the four-way valve (16), and the First Heat Exchanger (15) passes through the four-way valve (16)
It is connected to first air intake passage (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820954197.6U CN208311040U (en) | 2018-06-19 | 2018-06-19 | Compressor and refrigerating plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820954197.6U CN208311040U (en) | 2018-06-19 | 2018-06-19 | Compressor and refrigerating plant |
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| Publication Number | Publication Date |
|---|---|
| CN208311040U true CN208311040U (en) | 2019-01-01 |
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ID=64707590
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820954197.6U Active CN208311040U (en) | 2018-06-19 | 2018-06-19 | Compressor and refrigerating plant |
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| Country | Link |
|---|---|
| CN (1) | CN208311040U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730183A (en) * | 2018-06-19 | 2018-11-02 | 广东美芝制冷设备有限公司 | Compressor and refrigerating plant |
-
2018
- 2018-06-19 CN CN201820954197.6U patent/CN208311040U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730183A (en) * | 2018-06-19 | 2018-11-02 | 广东美芝制冷设备有限公司 | Compressor and refrigerating plant |
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