CN103075344A - Variable-capacity two-stage enthalpy-increase compressor and air-conditioning system - Google Patents
Variable-capacity two-stage enthalpy-increase compressor and air-conditioning system Download PDFInfo
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- CN103075344A CN103075344A CN2011103280161A CN201110328016A CN103075344A CN 103075344 A CN103075344 A CN 103075344A CN 2011103280161 A CN2011103280161 A CN 2011103280161A CN 201110328016 A CN201110328016 A CN 201110328016A CN 103075344 A CN103075344 A CN 103075344A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 13
- 238000010438 heat treatment Methods 0.000 abstract description 11
- 239000007788 liquid Substances 0.000 abstract 6
- 239000003507 refrigerant Substances 0.000 description 25
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 230000030279 gene silencing Effects 0.000 description 5
- 230000004907 flux Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000033558 biomineral tissue development Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The invention provides a variable-capacity two-stage enthalpy-increase compressor which comprises a compressor body and a liquid separator. The compressor body comprises an upper cylinder, a separator plate, a lower cylinder, a lower flange, a compressor exhaust pipe and an enthalpy-increase pipe, wherein the lower cylinder is provided with a first air suction opening and a slide plate groove. The liquid separator comprises a liquid separator intake pipe and a first liquid separator exhaust pipe. The first liquid separator exhaust pipe is communicated with the first air suction opening of the lower cylinder; the lower cylinder is further provided with an air exhaust opening and a second air suction opening communicated with the tail of the slide plate groove; the air exhaust opening is communicated with the inner cavity of the upper cylinder through a bypass exhaust pipe, and the bypass exhaust pipe is equipped with a valve; the second air suction opening is selectively communicated with the liquid separator intake pipe and the compressor exhaust pipe. According to the invention, the variable-capacity two-stage enthalpy-increase compressor realizes adjustment of capacity through switching between a single stage and two stages, can be safely and reliably applied in an ultralow temperature environment with a temperature lower than -20 DEG C and has high heating capacity and a high energy efficiency ratio. Meanwhile, the invention also discloses an air-conditioning system using the variable-capacity two-stage enthalpy-increase compressor.
Description
Technical field
The present invention relates to compressor, especially a kind of variable-capacity two-stage enthalpy increasing compressor, and the air-conditioning system of using this variable-capacity two-stage enthalpy increasing compressor.
Background technique
The energy resources of China are very limited, ecological environmental pollution and destruction are day by day serious, energy-conservation and ecological, environmental protective has become the day by day serious problem of China, therefore, in recent years, country has put into effect a series of policy, has accelerated the Product Development of energy-saving, emission-reducing, environment friendly, under this large environmental background, the varying capacity technology is arisen at the historic moment.The varying capacity technology is the capacity regulating technology between constant speed machine and frequency changer, can carry out according to the variation of room load the adjusting of certain capacity, has obvious power savings advantages; Owing to there not being complicated frequency-variable controller, more common frequency changer more has superiority on cost simultaneously.Yet because the pressure of inspiration(Pi) of ultralow temperature lower compression machine is little, exhaust pressure is large, and the pressure ratio of compressor is very large, causes delivery temperature very high, and therefore, common variable conpacitance compressor can not be applied to ultra-low temperature surroundings; And, common variable conpacitance compressor is subjected to the restriction of structure, the various gaps that exist between the cylinder interior part, and too high pressure reduction can cause refrigerant from these clearance leakages, thereby can form larger leakage and frictional loss, heating performance and reliability under this bad working environments environment are all undesirable.
Summary of the invention
First technical problem to be solved by this invention is, a kind of variable-capacity two-stage enthalpy increasing compressor is provided, and it can be applied to ultra-low temperature surroundings, and the heating capacity under ultralow temperature and reliability are high.
Second technical problem to be solved by this invention is, a kind of air-conditioning system of using above-mentioned variable-capacity two-stage enthalpy increasing compressor is provided.
The technological scheme that the present invention solves above-mentioned first technical problem employing is: a kind of variable-capacity two-stage enthalpy increasing compressor, it comprises compressor body and liquor separator, compressor body comprises upper cylinder, dividing plate, lower cylinder, lower flange, compressor exhaust pipe and increase the enthalpy pipe, lower cylinder has the first intakeport and vane slot, vane slot is afterbody away from an end at lower cylinder center, liquor separator comprises liquor separator suction tude and the first liquor separator outlet pipe, the first liquor separator outlet pipe is communicated with the first intakeport of described lower cylinder, also be provided with the relief opening that is communicated with its inner chamber and the second intakeport that is communicated with described vane slot afterbody on the described lower cylinder, described relief opening is communicated with the inner chamber of described upper cylinder through by-pass stack, and at by-pass stack the first valve is housed, described the second intakeport optionally is communicated with described liquor separator suction tude and described compressor exhaust pipe through second valve.
Preferably, described second valve is three-way valve, and three mouths of this three-way valve are communicated with through second intakeport of connecting tube with described liquor separator suction tude, described compressor exhaust pipe and described lower cylinder respectively.
Preferably, the angle between the center line of the center line of the first intakeport of described lower cylinder and its second intakeport is that 30 degree are to 150 degree.
Preferably, the angle between the center line of the center line of the first intakeport of described lower cylinder and its relief opening is that 35 degree are to 150 degree.
Preferably, the second intakeport of described lower cylinder is communicated with described vane slot afterbody through inclined hole, and the diameter of this inclined hole is 1mm to 6mm, and the angle between inclined hole center line and the described vane slot center line is that 35 degree are to 60 degree.
Preferably, described the first valve is solenoid valve.
Preferably, described upper cylinder is provided with the 3rd intakeport that is communicated with its inner chamber; Described liquor separator also comprises the second liquor separator outlet pipe, and this second liquor separator outlet pipe is communicated with the 3rd intakeport of described upper cylinder, and described by-pass stack is communicated with this second liquor separator outlet pipe.
Preferably, the volume of described upper cylinder is less than the volume of described lower cylinder, and the volume ratio of described upper cylinder and described lower cylinder is 0.3 to 0.95.
Preferably, be provided with boss at described dividing plate.
Preferably, be provided with boss at described lower flange.
The technological scheme that the present invention solves above-mentioned second technical problem employing is: a kind of air-conditioning system, it comprises described variable-capacity two-stage enthalpy increasing compressor.
Variable-capacity two-stage enthalpy increasing compressor of the present invention, by second valve the vane slot afterbody optionally is communicated with liquor separator suction tude and compressor exhaust pipe, when air-conditioning system is freezed, the first valve on the by-pass stack is opened, the vane slot afterbody is communicated with the liquor separator suction tude, during compressor start, enter into the afterbody of lower cylinder vane slot from the low pressure refrigerant of liquor separator suction tude suction, because the slide plate two ends are can not mineralization pressure poor, slide plate can not slide, and the refrigerant in the lower cylinder just enters into upper cylinder from by-pass stack without overcompression and compresses, because the volume of lower cylinder is not identical with the volume of lower cylinder, the volume of lower cylinder is much larger than the volume of upper cylinder, by this movement process, only have the refrigerant of upper cylinder to circulate, reduced the cold medium flux in the system, reduction system input power, the Energy Efficiency Ratio of raising system.And when air-conditioning system heats, the first valve on the by-pass stack cuts out, the vane slot afterbody is communicated with compressor exhaust pipe, during compressor start, enter into the afterbody of lower cylinder vane slot from the high pressure refrigerant of compressor exhaust pipe discharge, under the effect of pressure difference, slide plate begins to slide, refrigerant in the lower cylinder has compressed once and has carried out the compression second time through dividing plate to upper cylinder afterwards, because the volume of lower cylinder is much larger than the volume of upper cylinder, by this movement process, only have the refrigerant of lower cylinder to circulate, increased the cold medium flux in the system, improved the heating capacity of compressor, carried out tonifying Qi and increase enthalpy by increasing the enthalpy bend pipe at low temperatures simultaneously.
This shows, variable-capacity two-stage enthalpy increasing compressor of the present invention adopts the mode of single twin-stage switching to realize the adjusting of capacity, can be applied in preferably in the low-cost high energy efficiency air-conditioning system, ultra-low temperature surroundings below can safe and reliable being applied in-20 degree centigrade has higher heating capacity and Energy Efficiency Ratio simultaneously.
Description of drawings
Fig. 1 is the schematic perspective view of the variable-capacity two-stage enthalpy increasing compressor of the embodiment of the invention;
Fig. 2 is the longitudinal section of the used compressor body of variable-capacity two-stage enthalpy increasing compressor of the embodiment of the invention;
Fig. 3 is the sectional elevation of the used compressor body of variable-capacity two-stage enthalpy increasing compressor of the embodiment of the invention;
Fig. 4 is the structural representation of the used lower cylinder of variable-capacity two-stage enthalpy increasing compressor of the embodiment of the invention;
Fig. 5 is the structural representation of the used dividing plate of variable-capacity two-stage enthalpy increasing compressor of the embodiment of the invention;
Fig. 6 is the structural representation of the used lower flange of variable-capacity two-stage enthalpy increasing compressor of the embodiment of the invention.
Description of reference numerals: 1-compressor exhaust pipe, 2-liquor separator suction tude, the 3-connecting tube, the 4-connecting tube, the 5-three-way valve, the 6-liquor separator, the 7-connecting tube, 8-the second liquor separator outlet pipe, 9-the first liquor separator outlet pipe, the 10-by-pass stack, the 11-solenoid valve, the 12-compressor body, 13-increases the enthalpy pipe, the 14-lower cylinder, the 14a-inner chamber, the 14b-vane slot, 14c-the first intakeport, 14d-the second intakeport, the 14e-inclined hole, the 14f-relief opening, the 15-housing, the 17-upper cylinder, 17a-the 3rd intakeport, the 18-dividing plate, the 18a-boss, the 19-lower flange, the 19a-boss, 19b-expansion silencing cavity, the 20-lower cover plate, the 21-flash vessel, the 22-condenser.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated:
Figure 1 shows that the schematic perspective view of one of them embodiment's of the present invention variable-capacity two-stage enthalpy increasing compressor, variable-capacity two-stage enthalpy increasing compressor mainly is comprised of compressor body 12, liquor separator 6, three-way valve 5, by-pass stack 10, solenoid valve 11 and connecting tube 3,4,7, and liquor separator 6 comprises liquor separator suction tude 2, the first liquor separator outlet pipe 9 and the second liquor separator outlet pipe 8.The First A of three-way valve 5 and second mouthful of B are communicated with liquor separator suction tude 2 and compressor exhaust pipe 1 through connecting tube 4,3 respectively, and an end of by-pass stack 10 is communicated with the second liquor separator outlet pipe 8, at by-pass stack 10 solenoid valve 11 is installed.
See Fig. 2, compressor body 12 comprises housing 15, upper cylinder 17, dividing plate 18, lower cylinder 14, lower flange 19, lower cover plate 20, compressor exhaust pipe 1 and increases enthalpy pipe 13, upper cylinder 17, dividing plate 18, lower cylinder 14, lower flange 19 and lower cover plate 20 are from top to bottom successively in the fitting seat housing 15, the first liquor separator outlet pipe 9 is communicated with the first intakeport 14c of lower cylinder 14, and the second liquor separator outlet pipe 8 is communicated with the 3rd intakeport 17a of upper cylinder 17.The volume of upper cylinder 17 is less than the volume of lower cylinder 14, and upper cylinder 17 is 0.3 to 0.95 with the volume ratio of lower cylinder 14.Carry out the compression second time because refrigerant enters into upper cylinder 17 after lower cylinder 14 carries out first compression, the density of refrigerant becomes large after the compression for the first time, so the volume of upper cylinder 17 diminishes, the scope of best volume ratio is 0.6 to 0.8.
See Fig. 3, Fig. 4, lower cylinder 14 is provided with vane slot 14b, and the afterbody of lower cylinder 14 vane slot 14b is closed body without spring eye.Outer side surface at lower cylinder 14 is provided with the first intakeport 14c, the second intakeport 14d and relief opening 14f, the first intakeport 14c and relief opening 14f communicate with the inner chamber 14a of lower cylinder 14, relief opening 14f is connected with the other end of by-pass stack 10, the second intakeport 14d is communicated with the afterbody of vane slot 14b through inclined hole 14e, and the second intakeport 14d is communicated with the 3rd mouthful of C of three-way valve 5 through connecting tube 7.Angle theta between the center line of the center line of the first intakeport 14c of lower cylinder 14 and its second intakeport 14d is that 30 degree are to 150 degree.Angle δ between the center line of the center line of the first intakeport 14c of lower cylinder 14 and its relief opening 14f is that 35 degree are to 150 degree.The diameter of inclined hole 14e is 1mm to 6mm, and the angle α between inclined hole 14e center line and the vane slot 14b center line is that 35 degree are to 60 degree.
See Fig. 5, be provided with boss 18a at dividing plate 18, dividing plate 18 closely cooperates by boss 18a and lower cylinder 14, prevents that refrigerant from leaking from inclined hole 14e.
See Fig. 6, be provided with boss 19a and expansion silencing cavity 19b at lower flange 19, closely cooperate by boss 19a and lower cylinder 14 on the lower flange 19, prevent that refrigerant from leaking from inclined hole 14e.Expansion silencing cavity 19b with increase enthalpy pipe 13 and be communicated with, carrying out compressor when heating, the refrigerant in the condenser enters into flash vessel and flashes to gaseous coolant, enters into lower flange 19 and carries out tonifying Qi and increase enthalpy by increasing enthalpy pipe 13 subsequently, directly improves the heating capacity of compressor.Lower flange 19 and lower cover plate 20 closely cooperate and form airtight intermediate pressure cavity with silencing function, reduction noise that can be by a relatively large margin and improve air compensation.
The working principle of the variable-capacity two-stage enthalpy increasing compressor of above-described embodiment is as follows:
(1) when the operating mode of air-conditioning system is cooling condition: solenoid valve 11 is opened, the First A of three-way valve 5 and the 3rd mouthful of C conducting, behind the compressor start, pass through connecting tube 4 from the low pressure refrigerant that liquor separator suction tude 2 sucks, three-way valve 5 and connecting tube 7 enter the afterbody that enters into lower cylinder 14 vane slot 14b, because the pressure of low pressure refrigerant is identical with the pressure of refrigerant in the lower cylinder 14, slide plate two ends in the vane slot 14b are can not mineralization pressure poor, slide plate can not slide, refrigerant in the lower cylinder 14 just enters into the second liquor separator outlet pipe 8 from by-pass stack 10 without overcompression, compress to upper cylinder 17 again, because the volume of lower cylinder 14 is not identical with the volume of lower cylinder 14, the volume of lower cylinder 14 is much larger than the volume of upper cylinder 17, by this movement process, only have the refrigerant of upper cylinder 17 to circulate, reduce the cold medium flux in the system, reduced system's input power, improved the Energy Efficiency Ratio of system.
(2) when the operating mode of air-conditioning system is heating condition: solenoid valve 11 cuts out, second mouthful of B and the 3rd mouthful of C conducting of three-way valve 5, behind the compressor start, the High Temperature High Pressure refrigerant that sucks from compressor exhaust pipe 1 passes through connecting tube 3, three-way valve 5 and connecting tube 7 enter into the tail end of the vane slot 14b of lower cylinder 14, because the pressure of High Temperature High Pressure refrigerant is greater than the pressure of refrigerant in the lower cylinder 14, slide plate two ends mineralization pressure in the vane slot 14b is poor, slide plate is pushed under the effect of pressure with lower roller in the lower cylinder 14 and contacts that (existing Dual-level enthalpy adding compressor is by the spring that is contained in the spring eye slide plate to be contacted with lower roller, therefore, the variable-capacity two-stage enthalpy increasing compressor of the present embodiment can save spring eye and the spring in the lower cylinder), thus refrigerant is compressed.Owing to there not being refrigerant from by-pass stack 10, to discharge, all refrigerants in the lower cylinder 14 all compress, refrigerant in the lower cylinder 14 all enters into lower flange 19, after mixing in the expansion silencing cavity 19b of lower flange 19 with refrigerant from condenser 22 and flash vessel 21 again by dividing plate 18, enter into again upper cylinder 17 and carry out the compression second time, this moment, the cold medium flux of compressor was more, and the input power of compressor is higher, can obtain higher heating capacity and heating energy efficiency ratio in system.
This shows, adopt variable-capacity two-stage enthalpy increasing compressor of the present invention to adopt the mode of single twin-stage switching to realize the adjusting of capacity, can be applied in preferably in the low-cost high energy efficiency air-conditioning system, ultra-low temperature surroundings below can safe and reliable being applied in-20 degree centigrade has higher heating capacity and Energy Efficiency Ratio simultaneously.
Be specific embodiments of the invention only below, do not limit protection scope of the present invention with this; Any replacement and the improvement done on the basis of not violating the present invention's design all belong to protection scope of the present invention.
Claims (11)
1. variable-capacity two-stage enthalpy increasing compressor, it comprises compressor body and liquor separator, compressor body comprises upper cylinder, dividing plate, lower cylinder, lower flange, compressor exhaust pipe and increase the enthalpy pipe, lower cylinder has the first intakeport and vane slot, vane slot is afterbody away from an end at lower cylinder center, liquor separator comprises liquor separator suction tude and the first liquor separator outlet pipe, the first liquor separator outlet pipe is communicated with the first intakeport of described lower cylinder, it is characterized in that: also be provided with the relief opening that is communicated with its inner chamber and the second intakeport that is communicated with described vane slot afterbody on the described lower cylinder, described relief opening is communicated with the inner chamber of described upper cylinder through by-pass stack, and at by-pass stack the first valve is housed, described the second intakeport optionally is communicated with described liquor separator suction tude and described compressor exhaust pipe through second valve.
2. variable-capacity two-stage enthalpy increasing compressor according to claim 1, it is characterized in that: described second valve is three-way valve, and three mouths of this three-way valve are communicated with through second intakeport of connecting tube with described liquor separator suction tude, described compressor exhaust pipe and described lower cylinder respectively.
3. variable-capacity two-stage enthalpy increasing compressor according to claim 1 is characterized in that: the angle between the center line of the first intakeport of described lower cylinder and the center line of its second intakeport is that 30 degree are to 150 degree.
4. variable-capacity two-stage enthalpy increasing compressor according to claim 1 is characterized in that: the angle between the center line of the first intakeport of described lower cylinder and the center line of its relief opening is that 35 degree are to 150 degree.
5. variable-capacity two-stage enthalpy increasing compressor according to claim 1, it is characterized in that: the second intakeport of described lower cylinder is communicated with described vane slot afterbody through inclined hole, the diameter of this inclined hole is 1mm to 6mm, and the angle between inclined hole center line and the described vane slot center line is that 35 degree are to 60 degree.
6. variable-capacity two-stage enthalpy increasing compressor according to claim 1, it is characterized in that: described the first valve is solenoid valve.
7. variable-capacity two-stage enthalpy increasing compressor according to claim 1, it is characterized in that: described upper cylinder is provided with the 3rd intakeport that is communicated with its inner chamber; Described liquor separator also comprises the second liquor separator outlet pipe, and this second liquor separator outlet pipe is communicated with the 3rd intakeport of described upper cylinder, and described by-pass stack is communicated with this second liquor separator outlet pipe.
8. according to claim 1 to 7 each described variable-capacity two-stage enthalpy increasing compressors, it is characterized in that: the volume of described upper cylinder is less than the volume of described lower cylinder, and the volume ratio of described upper cylinder and described lower cylinder is 0.3 to 0.95.
9. according to claim 1 to 7 each described variable-capacity two-stage enthalpy increasing compressors, it is characterized in that: be provided with boss at described dividing plate.
10. according to claim 1 to 7 each described variable-capacity two-stage enthalpy increasing compressors, it is characterized in that: be provided with boss at described lower flange.
11. an air-conditioning system is characterized in that: comprise such as each described variable-capacity two-stage enthalpy increasing compressor of claim 1 to 10.
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| CN201110328016.1A CN103075344B (en) | 2011-10-25 | 2011-10-25 | Variable-capacity two-stage enthalpy-increase compressor and air-conditioning system |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103883525A (en) * | 2014-03-19 | 2014-06-25 | 安徽美芝精密制造有限公司 | Double-stage compressor |
| WO2015196880A1 (en) * | 2014-06-27 | 2015-12-30 | 珠海格力电器股份有限公司 | Air conditioning system, air compensation structure for air conditioning system, and dual-stage compressor |
| CN105757798A (en) * | 2016-03-03 | 2016-07-13 | 美的集团武汉制冷设备有限公司 | Air-conditioning system and control method of air-conditioning system |
| CN106595116A (en) * | 2016-12-23 | 2017-04-26 | Tcl空调器(中山)有限公司 | Air conditioner and control method thereof |
| CN107202444A (en) * | 2017-07-31 | 2017-09-26 | 广东美芝制冷设备有限公司 | Refrigeration system |
| CN107476979A (en) * | 2017-08-10 | 2017-12-15 | 珠海格力节能环保制冷技术研究中心有限公司 | The assembly method of compressor, air conditioner and compressor |
| CN107878154A (en) * | 2017-10-24 | 2018-04-06 | 珠海格力电器股份有限公司 | A kind of two-stage enthalpy increasing air conditioning system for vehicle and control method |
| CN108087238A (en) * | 2017-11-03 | 2018-05-29 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and with its air-conditioning system |
| CN110206733A (en) * | 2019-07-09 | 2019-09-06 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of more air supply compressors of Two-stage Compression and air conditioner |
| CN111255687A (en) * | 2018-11-30 | 2020-06-09 | 广东美芝精密制造有限公司 | Compressor and refrigerating system |
| CN114183357A (en) * | 2021-12-16 | 2022-03-15 | 珠海格力电器股份有限公司 | Double-cylinder variable-capacity compressor assembly, air conditioner and control method of air conditioner |
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| CN111255687A (en) * | 2018-11-30 | 2020-06-09 | 广东美芝精密制造有限公司 | Compressor and refrigerating system |
| CN110206733A (en) * | 2019-07-09 | 2019-09-06 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of more air supply compressors of Two-stage Compression and air conditioner |
| CN114183357A (en) * | 2021-12-16 | 2022-03-15 | 珠海格力电器股份有限公司 | Double-cylinder variable-capacity compressor assembly, air conditioner and control method of air conditioner |
| CN114183357B (en) * | 2021-12-16 | 2022-11-11 | 珠海格力电器股份有限公司 | Double-cylinder variable-capacity compressor assembly, air conditioner and control method of air conditioner |
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