CN103727039A - Two-stage compression rotary compressor, pump body assembly of two-stage compression rotary compressor, and air conditioning system - Google Patents
Two-stage compression rotary compressor, pump body assembly of two-stage compression rotary compressor, and air conditioning system Download PDFInfo
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- CN103727039A CN103727039A CN201410009518.1A CN201410009518A CN103727039A CN 103727039 A CN103727039 A CN 103727039A CN 201410009518 A CN201410009518 A CN 201410009518A CN 103727039 A CN103727039 A CN 103727039A
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Abstract
The invention discloses a pump body assembly used for a two-stage compression rotary compressor, the two-stage compression rotary compressor provided with the pump body assembly and an air conditioning system provided with the two-stage compression rotary compressor. The pump body assembly used for the two-stage compression rotary compressor comprises a secondary bearing, a first air cylinder, a refrigerant injector, an intermediate partition plate and a second air cylinder as well as a primary bearing, wherein the lower surface of the first air cylinder is connected with the upper surface of the secondary bearing; a first compression chamber is formed in the first air cylinder; the refrigerant injector is used for injecting a refrigerant into the first compression chamber and is arranged on the first air cylinder; the lower surface of the intermediate partition plate is connected with the upper surface of the first air cylinder; the lower surface of the second air cylinder is connected with the upper surface of the intermediate partition plate; a second compression chamber is formed in the second air cylinder; the lower surface of the primary bearing is connected with the upper surface of the second air cylinder. According to the pump body component used for the two-stage compression rotary compressor of the embodiment of the invention, the structure is simple, the air supplement amount is large, and the compression efficiency can be improved.
Description
Technical field
The present invention relates to refrigeration technology field, particularly relate to a kind of pump assembly for two stage compression rotary compressor, there is the two-stage compressing rotating compressor of this pump assembly and there is the air-conditioning system of this two stage compression rotary compressor.
Background technique
In tonifying Qi, increase in enthalpy type air-conditioning system, operated by rotary motion has condenser, vaporizer, gas-liquid separator is equipped with between the two, the refrigerant of discharging from condenser is separated into liquid coolant and gas coolant gas-liquid separator, selectivity is only injected gas coolant the cylinder compression chamber of compressor, be exactly that so-called tonifying Qi increases enthalpy, object is in order to improve significantly the performances such as air-conditioning system ability.
The above-mentioned tonifying Qi of prior art increases in the air-conditioning system of enthalpy, is also that when low-temperature heating, such mode pressure ratio is large injecting the cylinder compression chamber of compressor from the gas coolant of gas-liquid separator separates, and coolant leakage amount is large, and cylinder volumetric efficiency reduces.
In two stage compression tonifying Qi, increase in enthalpy system, middle pressure chamber is set in compressor inside, middle pressure chamber connects first order compression exhaust and second level compression is air-breathing.System will be pressed in chamber in the gas inject separating from gas-liquid separator.Such mode shortcoming is, under certain pressure ratio condition, the situation of refrigerant reverse flow to occur, in, press cavity pressure higher than flash vessel internal pressure, cause gas coolant directly to enter gas-liquid separator from compressor, this system control complexity, under part pressure ratio condition, air compensation is less than normal.
As a kind of patent CN202560563U being implemented in air-conditioning and heat pump, provide a kind of two stage compression rotary compressor, by regulating gas-liquid separator both sides throttling arrangement, make in gas-liquid separator pressure higher than the pressure in middle pressure chamber, the gaseous coolant of separating from gas-liquid separator can be injected and presses chamber like this, reach the object that improves systematic function.
But there is following defect in this existing compressor: in pressure ratio hour, in gas-liquid separator, pressure can be not more than in middle pressure cavity pressure, system cannot be carried out tonifying Qi, even occur that gas coolant therefrom presses chamber to compress without the second level, directly enter gas-liquid separator, make on the contrary performance reduce, although can increase single-pass solenoid valve in refrigeration system, block back flow of gas, systematic function cannot effectively promote.
Summary of the invention
The present invention is intended to one of solve the problems of the technologies described above at least to a certain extent.
For this reason, one object of the present invention is to propose a kind of simple in structure, pump assembly for two stage compression rotary compressor that can improve compression efficiency.
Another object of the present invention is to propose a kind of two stage compression rotary compressor with above-mentioned pump assembly.
Another object of the present invention is to propose a kind of air-conditioning system with above-mentioned two stage compression rotary compressor.
According to the pump assembly for two stage compression rotary compressor of the embodiment of the present invention, comprising: supplementary bearing; The first cylinder, the lower surface of described the first cylinder is connected with the upper surface of described supplementary bearing, wherein, in described the first cylinder, has the first compression chamber; For described the first compression chamber being injected to the refrigerant injector of refrigerant, described refrigerant injector is located on the first cylinder; Central diaphragm and the second cylinder, the lower surface of described central diaphragm is connected with the upper surface of described the first cylinder, and the lower surface of described the second cylinder is connected with the upper surface of described central diaphragm, in described the second cylinder, has the second compression chamber; And main bearing, the lower surface of described main bearing is connected with the upper surface of described the second cylinder.
According to the pump assembly for two stage compression rotary compressor of the embodiment of the present invention, on the first cylinder, be provided with the refrigerant injector for described the first compression chamber being injected to refrigerant, jet amount is larger, can reduce coolant leakage amount, improves compression efficiency.
In addition, the pump assembly for two stage compression rotary compressor according to the above embodiment of the present invention can also have following additional technical characteristics:
According to an example of the present invention, between described supplementary bearing, described the first cylinder, described central diaphragm, described the second cylinder and described main bearing, be rigidly connected.
According to an example of the present invention, between described supplementary bearing, described the first cylinder, described central diaphragm, described the second cylinder and described main bearing, by bolt, be connected.
According to the two stage compression rotary compressor of the embodiment of the present invention, comprise the pump assembly for two stage compression rotary compressor described in above-mentioned any one.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination is understood becoming embodiment's description obviously and easily, wherein:
Fig. 1 is the schematic diagram of two stage compression rotary compressor according to an embodiment of the invention.
Embodiment
Describe embodiments of the invention below in detail, described embodiment's example is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment who is described with reference to the drawings, be exemplary, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of indications such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characteristics.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, also can comprise that the first and second features are not directly contacts but by the other feature contact between them.And, First Characteristic Second Characteristic " on ", " top " and " above " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that First Characteristic level height is less than Second Characteristic.
Below with reference to accompanying drawing, describe the pump assembly for two stage compression rotary compressor according to the embodiment of the present invention in detail.
First simply introduce be equipped with two stage compression rotary compressor air-conditioning system heat cycle period.Gas coolant becomes high temperature and high pressure gas after the compression of two stage compression rotary compressor, through compressor relief opening, discharges, and enters indoor heat exchanger carry out heat exchange via four-way valve, becomes the liquid refrigerants of High Temperature High Pressure.After capillary-compensated, become gas-liquid two-phase state and enter in gas-liquid separator.Liquid refrigerants is through the fluid-through port turnover of gas-liquid separator bottom, by electric expansion valve throttling again, become the gas-liquid two-phase refrigerant of low-temp low-pressure, enter and in outdoor heat exchanger, carry out heat exchange, the gaseous coolant that becomes low-temp low-pressure enters compressor liquid storage device through four-way valve, through the compression from intakeport sucks of first order compression cylinder, participates in circulation.Gas in gas-liquid separator, through top ventilating hole effluent gases liquid/gas separator, enters the puff prot of compressor.Through first order compression cylinder, suck, compressed together with the refrigerant sucking from intakeport, enter middle pressure chamber, then by second level compression cylinder, sucked, discharge after compression compressor, participate in circulation.
As shown in Figure 1, according to the pump assembly for two stage compression rotary compressor of the embodiment of the present invention, comprising: supplementary bearing 10, the first cylinders 20, refrigerant injector 30, central diaphragm 40, the second cylinders 50 and main bearing 60.
Upper (as shown in Figure 1 arrow on indicated direction) surperficial being connected of (as shown in Figure 1 arrow under indicated direction) surface and supplementary bearing 10 under the first cylinder 20.Wherein, in the first cylinder 20, there is the first compression chamber 201.
The lower surface of central diaphragm 40 is connected with the upper surface of the first cylinder 20.The lower surface of the second cylinder 50 is connected with the upper surface of central diaphragm 40.In the second cylinder 50, there is the second compression chamber 501.On central diaphragm 40, there is the cavity 401 that is communicated with the first compression chamber 201 and the second compression chamber 501.Cavity 401 connects the return-air side of exhaust side and second cylinder 50 of the first cylinder 20.That is to say, the first order pressurized gas of the first compression chamber 501 interior discharges enters the second compression chamber 501 via cavity 401 and carries out second level compression.
The lower surface of main bearing 60 is connected with the upper surface of the second cylinder 50.
Advantageously, according to an example of the present invention, between supplementary bearing 10, the first cylinder 20, central diaphragm 40, the second cylinder 50 and main bearing 60, be rigidly connected.Further, according to an example of the present invention, between supplementary bearing 10, the first cylinder 20, central diaphragm 40, the second cylinder 50 and main bearing 60, by bolt, be connected.This is understandable to those skilled in the art.
According to the pump assembly for two stage compression rotary compressor of the embodiment of the present invention, on the first cylinder, be provided with the refrigerant injector for described the first compression chamber being injected to refrigerant, improved the pressure of the gaseous coolant that enters the first compression chamber chamber, jet amount is larger.Reduce the pressure ratio of the first cylinder and the second cylinder, and then reduced coolant leakage amount, improved compression efficiency.
According to the pump assembly for two stage compression rotary compressor of the embodiment of the present invention, be used to two stage compression rotary compressor, can improve the compression efficiency of two stage compression rotary compressor.
Below with reference to accompanying drawing, sketch according to the working procedure of the two stage compression rotary compressor of the embodiment of the present invention.
As shown in Figure 1, the gaseous coolant that the refrigerant in gas-liquid separator 80 is separated through flash vessel 90, via the rear arrival refrigerant of injection pipe 100 injector 30.Refrigerant injector 30 will carry out first order compression such as the first compression chamber 201 after gaseous coolant pressurization.Refrigerant after first order compression enters the second compression chamber 501 by cavity 401 and connecting tube 70 respectively and carries out second level compression.Refrigerant is discharged two stage compression rotary compressor after two stage compression.
According to the pump assembly for two stage compression rotary compressor of the embodiment of the present invention, simple in structure, compression efficiency is high.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiments or example.
Although illustrated and described embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment within the scope of the invention in the situation that not departing from principle of the present invention and aim, modification, replacement and modification.
Claims (5)
1. for a pump assembly for two stage compression rotary compressor, it is characterized in that, comprising:
Supplementary bearing;
The first cylinder, the lower surface of described the first cylinder is connected with the upper surface of described supplementary bearing, wherein, in described the first cylinder, has the first compression chamber;
For described the first compression chamber being injected to the refrigerant injector of refrigerant, described refrigerant injector is located on the first cylinder;
Central diaphragm and the second cylinder, the lower surface of described central diaphragm is connected with the upper surface of described the first cylinder, and the lower surface of described the second cylinder is connected with the upper surface of described central diaphragm, in described the second cylinder, has the second compression chamber; With
Main bearing, the lower surface of described main bearing is connected with the upper surface of described the second cylinder.
2. the pump assembly for two stage compression rotary compressor according to claim 1, is characterized in that, between described supplementary bearing, described the first cylinder, described central diaphragm, described the second cylinder and described main bearing, is rigidly connected.
3. the pump assembly for two stage compression rotary compressor according to claim 2, is characterized in that, between described supplementary bearing, described the first cylinder, described central diaphragm, described the second cylinder and described main bearing, by bolt, is connected.
4. a two stage compression rotary compressor, is characterized in that, comprises according to the pump assembly for two stage compression rotary compressor described in any one in claim 1-3.
5. an air-conditioning system, is characterized in that, comprises according to the two stage compression rotary compressor shown in claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410009518.1A CN103727039A (en) | 2014-01-08 | 2014-01-08 | Two-stage compression rotary compressor, pump body assembly of two-stage compression rotary compressor, and air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410009518.1A CN103727039A (en) | 2014-01-08 | 2014-01-08 | Two-stage compression rotary compressor, pump body assembly of two-stage compression rotary compressor, and air conditioning system |
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| CN103727039A true CN103727039A (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410009518.1A Pending CN103727039A (en) | 2014-01-08 | 2014-01-08 | Two-stage compression rotary compressor, pump body assembly of two-stage compression rotary compressor, and air conditioning system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1517041A2 (en) * | 2001-09-27 | 2005-03-23 | Sanyo Electric Co., Ltd. | Rotary vane compressor with vane holding plug |
| CN201771770U (en) * | 2010-05-05 | 2011-03-23 | 广东美芝制冷设备有限公司 | Rotary type compressor |
| CN102251964A (en) * | 2010-05-17 | 2011-11-23 | 广东美芝制冷设备有限公司 | Rotary compressor and control method thereof |
| CN103423163A (en) * | 2012-05-24 | 2013-12-04 | 广东美芝制冷设备有限公司 | Rotary compressor, and jet refrigeration circulating apparatus comprising it |
| CN203717353U (en) * | 2014-01-08 | 2014-07-16 | 广东美芝制冷设备有限公司 | Two-stage compression rotary compressor and pump body assembly thereof as well as air conditioning system |
-
2014
- 2014-01-08 CN CN201410009518.1A patent/CN103727039A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1517041A2 (en) * | 2001-09-27 | 2005-03-23 | Sanyo Electric Co., Ltd. | Rotary vane compressor with vane holding plug |
| CN201771770U (en) * | 2010-05-05 | 2011-03-23 | 广东美芝制冷设备有限公司 | Rotary type compressor |
| CN102251964A (en) * | 2010-05-17 | 2011-11-23 | 广东美芝制冷设备有限公司 | Rotary compressor and control method thereof |
| CN103423163A (en) * | 2012-05-24 | 2013-12-04 | 广东美芝制冷设备有限公司 | Rotary compressor, and jet refrigeration circulating apparatus comprising it |
| CN203717353U (en) * | 2014-01-08 | 2014-07-16 | 广东美芝制冷设备有限公司 | Two-stage compression rotary compressor and pump body assembly thereof as well as air conditioning system |
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Application publication date: 20140416 |