CN103075344B - 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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- CN103075344B CN103075344B CN201110328016.1A CN201110328016A CN103075344B CN 103075344 B CN103075344 B CN 103075344B CN 201110328016 A CN201110328016 A CN 201110328016A CN 103075344 B CN103075344 B CN 103075344B
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 11
- 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 7
- 238000007906 compression Methods 0.000 description 7
- 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
- 230000007613 environmental effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 230000008859 change Effects 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 use the air-conditioning system of this variable-capacity two-stage enthalpy increasing compressor.
Background technique
The energy resources of China are very limited, ecological environmental pollution is day by day serious with destruction, 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, accelerates the Product Development of energy-saving, emission-reducing, environment friendly, under this large environmental background, variable capacity technology arises at the historic moment.Variable capacity technology is the capacity regulating technology between constant speed machine and frequency changer, can carry out the adjustment of certain capacity, have obvious power savings advantages according to the change of room load; Simultaneously owing to not having complicated frequency-variable controller, on cost, more common frequency changer advantageously.But because under ultralow temperature, the pressure of inspiration(Pi) of compressor is little, exhaust pressure is large, the pressure ratio of compressor is very large, and cause delivery temperature very high, therefore, common variable conpacitance compressor can not be applied to ultra-low temperature surroundings; And, common variable conpacitance compressor is subject to the restriction of structure, the various gaps existed between cylinder interior part, and too high pressure reduction can cause refrigerant from these clearance leakages, thus larger leakage and frictional loss can be formed, the heating performance under this bad working environments environment and reliability all undesirable.
Summary of the invention
First technical problem to be solved by this invention is, provide a kind of variable-capacity two-stage enthalpy increasing compressor, it can be applied to ultra-low temperature surroundings, and heating capacity under ultralow temperature and reliability high.
Second technical problem to be solved by this invention is, provides a kind of air-conditioning system using above-mentioned variable-capacity two-stage enthalpy increasing compressor.
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 increasing 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, first liquor separator outlet pipe is communicated with the first intakeport of described lower cylinder, described lower cylinder is also provided with and the relief opening of its inner space and the second intakeport of being communicated with described vane slot afterbody, described relief opening is through the inner space of by-pass stack and described upper cylinder, and the first valve is housed on by-pass stack, described second intakeport is optionally communicated with described compressor exhaust pipe with described liquor separator suction tude through the second valve.
Preferably, described second valve is three-way valve, and three mouths of this three-way valve are communicated with the second intakeport of described lower cylinder with described liquor separator suction tude, described compressor exhaust pipe through connecting tube respectively.
Preferably, the angle between the center line of the first intakeport of described lower cylinder and the center line of its second intakeport is 30 degree to 150 degree.
Preferably, the angle between the center line of the first intakeport of described lower cylinder and the center line of its relief opening is 35 degree 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 described vane slot center line is 35 degree to 60 degree.
Preferably, described first valve is solenoid valve.
Preferably, described upper cylinder is provided with the 3rd intakeport with its inner space; 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, described dividing plate is provided with boss.
Preferably, described lower flange is provided with boss.
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 the second valve, vane slot afterbody is optionally communicated with compressor exhaust pipe with liquor separator suction tude, when air-conditioning system is freezed, the first valve on by-pass stack is opened, vane slot afterbody is communicated with liquor separator suction tude, during compressor start, the afterbody of lower cylinder vane slot is entered into from the low pressure refrigerant of liquor separator suction tude suction, due to slide plate two ends can not mineralization pressure poor, slide plate can not slide, refrigerant in lower cylinder just enters into upper cylinder from by-pass stack without compression 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, the refrigerant of upper cylinder is only had to circulate, decrease the cold medium flux in system, reduce system input power, the Energy Efficiency Ratio of raising system.And when air-conditioning system heats, the first valve on by-pass stack cuts out, vane slot afterbody is communicated with compressor exhaust pipe, during compressor start, the afterbody of lower cylinder vane slot is entered into from the high pressure refrigerant of compressor exhaust pipe discharge, under the effect of pressure difference, slide plate starts to slide, refrigerant in lower cylinder have compressed and once carries out second time compression 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, the refrigerant of lower cylinder is only had to circulate, add the cold medium flux in system, improve the heating capacity of compressor, carry out tonifying Qi increasing enthalpy by increasing enthalpy bend pipe at low temperatures simultaneously.
As can be seen here, the mode that variable-capacity two-stage enthalpy increasing compressor of the present invention adopts single twin-stage to switch realizes the adjustment of capacity, can be applied in low cost High-energy-efficienair air conditioner system preferably, the ultra-low temperature surroundings being applied in less than-20 degrees Celsius that can be safe and reliable, has higher heating capacity and Energy Efficiency Ratio simultaneously.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the variable-capacity two-stage enthalpy increasing compressor of the embodiment of the present invention;
Fig. 2 is the longitudinal section of the variable-capacity two-stage enthalpy increasing compressor compressor body used of the embodiment of the present invention;
Fig. 3 is the sectional elevation of the variable-capacity two-stage enthalpy increasing compressor compressor body used of the embodiment of the present invention;
Fig. 4 is the structural representation of the variable-capacity two-stage enthalpy increasing compressor lower cylinder used of the embodiment of the present invention;
Fig. 5 is the structural representation of the variable-capacity two-stage enthalpy increasing compressor dividing plate used of the embodiment of the present invention;
Fig. 6 is the structural representation of the variable-capacity two-stage enthalpy increasing compressor lower flange used of the embodiment of the present invention.
Description of reference numerals: 1-compressor exhaust pipe, 2-liquor separator suction tude, 3-connecting tube, 4-connecting tube, 5-three-way valve, 6-liquor separator, 7-connecting tube, 8-second liquor separator outlet pipe, 9-first liquor separator outlet pipe, 10-by-pass stack, 11-solenoid valve, 12-compressor body, 13-increases enthalpy pipe, 14-lower cylinder, 14a-inner chamber, 14b-vane slot, 14c-first intakeport, 14d-second intakeport, 14e-inclined hole, 14f-relief opening, 15-housing, 17-upper cylinder, 17a-the 3rd intakeport, 18-dividing plate, 18a-boss, 19-lower flange, 19a-boss, 19b-expansion silencing cavity, 20-lower cover plate, 21-flash vessel, 22-condenser.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail:
Figure 1 shows that the schematic perspective view of the variable-capacity two-stage enthalpy increasing compressor of one of them embodiment of the present invention, variable-capacity two-stage enthalpy increasing compressor forms primarily 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, first liquor separator outlet pipe 9 and the second liquor separator outlet pipe 8.The first A of three-way valve 5 is communicated with compressor exhaust pipe 1 with liquor separator suction tude 2 through connecting tube 4,3 respectively with second mouthful of B, and one end of by-pass stack 10 is communicated with the second liquor separator outlet pipe 8, and by-pass stack 10 is provided with solenoid valve 11.
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 fitting seat housing 15, 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 second time compression because refrigerant enters into upper cylinder 17 after lower cylinder 14 carries out first compression, after first time compression, the density of refrigerant becomes large, 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, without spring eye, is closed body.The outer side surface of lower cylinder 14 is provided with the first intakeport 14c, the second intakeport 14d and relief opening 14f, first intakeport 14c and relief opening 14f communicates with the inner chamber 14a of lower cylinder 14, relief opening 14f is connected with the other end of by-pass stack 10, 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 first intakeport 14c of lower cylinder 14 and the center line of its second intakeport 14d is 30 degree to 150 degree.Angle δ between the center line of the first intakeport 14c of lower cylinder 14 and the center line of its relief opening 14f is 35 degree to 150 degree.The diameter of inclined hole 14e is 1mm to 6mm, and the angle α between inclined hole 14e center line and vane slot 14b center line is 35 degree to 60 degree.
See Fig. 5, dividing plate 18 is provided with boss 18a, dividing plate 18 is closely cooperated by boss 18a and lower cylinder 14, prevents refrigerant from leaking from inclined hole 14e.
See Fig. 6, lower flange 19 is provided with boss 19a and expansion silencing cavity 19b, lower flange 19 is closely cooperated by boss 19a and lower cylinder 14, prevent refrigerant from leaking from inclined hole 14e.Expansion silencing cavity 19b is communicated with increasing enthalpy pipe 13, and when carrying out compressor and heating, the refrigerant in condenser enters into flash vessel to carry out flashing to gaseous coolant, enters into lower flange 19 subsequently and carries out tonifying Qi increasing enthalpy, directly improve the heating capacity of compressor by increasing enthalpy pipe 13.Lower flange 19 and lower cover plate 20 closely cooperate and form the intermediate pressure cavity of airtight band silencing function, can reduction noise 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, first A and the 3rd mouthful C conducting of three-way valve 5, after compressor start, the low pressure refrigerant sucked from liquor separator suction tude 2 passes through connecting tube 4, three-way valve 5 and connecting tube 7 enter the afterbody entering into lower cylinder 14 vane slot 14b, because the pressure of low pressure refrigerant is identical with the pressure of refrigerant in lower cylinder 14, slide plate two ends in vane slot 14b can not mineralization pressure poor, slide plate can not slide, refrigerant in lower cylinder 14 just enters into the second liquor separator outlet pipe 8 from by-pass stack 10 without compression, arrive upper cylinder 17 again to compress, 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, the refrigerant of upper cylinder 17 is only had to circulate, decrease the cold medium flux in system, reduce system input power, the Energy Efficiency Ratio of raising 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 C conducting of three-way valve 5, after compressor start, the High Temperature High Pressure refrigerant sucked 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, pressure due to High Temperature High Pressure refrigerant is greater than the pressure of refrigerant in lower cylinder 14, slide plate two ends mineralization pressure in vane slot 14b is poor, slide plate is pushed under the effect of the pressure and contacts with the lower roller in lower cylinder 14 that (existing Dual-level enthalpy adding compressor by the spring be contained in spring eye, slide plate is contacted with lower roller, therefore, the variable-capacity two-stage enthalpy increasing compressor of the present embodiment can save spring eye in lower cylinder and spring), thus refrigerant is compressed.Discharge from by-pass stack 10 owing to there is no refrigerant, all refrigerants in lower cylinder 14 all compress, refrigerant in lower cylinder 14 all enters into lower flange 19, with mix in the expansion silencing cavity 19b of lower flange 19 from the refrigerant in condenser 22 and flash vessel 21 after again by dividing plate 18, enter into upper cylinder 17 again and carry out second time compression, now the cold medium flux of compressor is more, and the input power of compressor is higher, can obtain higher heating capacity and heating energy efficiency ratio in systems in which.
As can be seen here, the mode adopting variable-capacity two-stage enthalpy increasing compressor of the present invention to adopt single twin-stage to switch realizes the adjustment of capacity, can be applied in low cost High-energy-efficienair air conditioner system preferably, the ultra-low temperature surroundings being applied in less than-20 degrees Celsius that can be safe and reliable, has higher heating capacity and Energy Efficiency Ratio simultaneously.
These are only specific embodiments of the invention, do not limit protection scope of the present invention with this; Not violating any replacement and improvement that the basis of the present invention's design is done, all belong to protection scope of the present invention.
Claims (11)
1. a 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 increasing 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, first liquor separator outlet pipe is communicated with the first intakeport of described lower cylinder, it is characterized in that: described lower cylinder is also provided with and the relief opening of its inner space and the second intakeport of being communicated with described vane slot afterbody, described relief opening is through the inner space of by-pass stack and described upper cylinder, and the first valve is housed on by-pass stack, described second intakeport is optionally communicated with described compressor exhaust pipe with described liquor separator suction tude through the 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, three mouths of this three-way valve are communicated with the second intakeport of described lower cylinder with described liquor separator suction tude, described compressor exhaust pipe through connecting tube 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 30 degree 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 35 degree 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 described vane slot center line is 35 degree to 60 degree.
6. variable-capacity two-stage enthalpy increasing compressor according to claim 1, is characterized in that: described first valve is solenoid valve.
7. variable-capacity two-stage enthalpy increasing compressor according to claim 1, is characterized in that: described upper cylinder is provided with the 3rd intakeport with its inner space; 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. the variable-capacity two-stage enthalpy increasing compressor according to any one of claim 1 to 7, 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. the variable-capacity two-stage enthalpy increasing compressor according to any one of claim 1 to 7, is characterized in that: on described dividing plate, be provided with boss.
10. the variable-capacity two-stage enthalpy increasing compressor according to any one of claim 1 to 7, is characterized in that: on described lower flange, be provided with boss.
11. 1 kinds of air-conditioning systems, is characterized in that: comprise the variable-capacity two-stage enthalpy increasing compressor as described in any one 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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| 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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| CN103075344B true CN103075344B (en) | 2015-07-22 |
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| CN103883525B (en) * | 2014-03-19 | 2016-11-02 | 安徽美芝精密制造有限公司 | Double-stage compressor |
| CN105201836B (en) * | 2014-06-27 | 2018-01-02 | 珠海格力电器股份有限公司 | Air-conditioning system, air-conditioning system gas supplementary structure and double-stage compressor |
| CN105757798B (en) * | 2016-03-03 | 2018-11-27 | 美的集团武汉制冷设备有限公司 | The control method of air-conditioning system and 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 |
| CN107878154B (en) * | 2017-10-24 | 2023-09-08 | 珠海格力电器股份有限公司 | Air conditioning system for double-stage enthalpy-increasing vehicle and control method |
| CN108087238B (en) * | 2017-11-03 | 2024-04-02 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and air conditioning system with same |
| 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 |
| 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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