CN1851354A - Variable frequency water-ring heat pump air conditioner set - Google Patents
Variable frequency water-ring heat pump air conditioner set Download PDFInfo
- Publication number
- CN1851354A CN1851354A CN 200610026848 CN200610026848A CN1851354A CN 1851354 A CN1851354 A CN 1851354A CN 200610026848 CN200610026848 CN 200610026848 CN 200610026848 A CN200610026848 A CN 200610026848A CN 1851354 A CN1851354 A CN 1851354A
- Authority
- CN
- China
- Prior art keywords
- water
- import
- outlet
- valve
- cooling water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Other Air-Conditioning Systems (AREA)
Abstract
The invention relates to frequency conversion type water cycle heat pump air conditioning unit in refrigeration technology field. It includes given frequency compressor, changed frequency compressor, oil separator, water-cooled condenser, liquid receiver, thermostatic expansion valve, refrigerant liquid supply tube, valve, evaporator, refrigerant liquid back tube, cooling tower, cooling water supply tube, supply valve, and back tube, water pump, and cooling water back valve. It adopts water cycle heat pump to improve refrigeration circular efficiency, and adopts two compressors according to demand.
Description
Technical field
What the present invention relates to is a kind of device of refrigeration technology field, particularly a kind of variable frequency water-ring heat pump air-conditioning unit.
Background technology
In the problems in present society life, the air-conditioning unit also becomes one of requisite electrical equipment.The air-cooled mode of the many employings of existing air-conditioning unit, the efficient of its kind of refrigeration cycle is lower, and water-loop heat pump has adopted the mode of water-cooled, can reduce condensing pressure, thus improve refrigerating efficiency.
Find through literature search prior art, Chinese patent application number: CN01109633.0, publication number: CN1374482, this patent has proposed " a kind of heat pump air conditioner unit that is applicable to cold district ", it comprises compressor, condenser, expansion valve and evaporimeter and becomes the working cycles loop of sealing that what system adopted is scroll compressor.But, for invariable frequency compressor, under the sub-load situation, the cold of the cold that needs in fact during less than full load, therefore promptly do not need the compressor full load operation, adopt the mode of fixed-capacity compressor under sub-load, to be actually a kind of waste of energy.
Therefore, utilize water-loop heat pump to improve the efficient of unit, simultaneously, the demand when utilizing variable-frequency compressor to satisfy sub-load just can overcome the above shortcoming of current air-conditioning unit with farthest energy-conservation, is a power-economizing method preferably.
Summary of the invention
Be deficiency and the defective that overcomes prior art, the present invention proposes a kind of variable frequency water-ring heat pump air-conditioning unit, make it utilize water-loop heat pump to improve unit efficiency, and utilize frequency conversion to change refrigerant flow, to reach purpose of energy saving.
The present invention is achieved by the following technical solutions, and variable frequency water-ring heat pump air-conditioning unit of the present invention comprises: invariable frequency compressor, frequency-changeable compressor, oil eliminator, water-cooled condenser, liquid reservoir, heating power expansion valve, refrigerant feed liquid pipe, valve, evaporimeter, cold-producing medium liquid back pipe, cooling tower, cooling water supply pipe, cooling water valve, CWR, water pump, cooling water back-water valve (BWV).
Invariable frequency compressor and frequency-changeable compressor are connected in parallel, outlet after the parallel connection is connected with the import of oil eliminator, the outlet of oil eliminator is connected with the import of water-cooled condenser, the outlet of water-cooled condenser is connected with the import of liquid reservoir, the outlet of liquid reservoir is connected with the import of heating power expansion valve, the outlet of heating power expansion valve is connected with the import of refrigerant feed liquid pipe, the outlet of refrigerant feed liquid pipe is connected with the import of each evaporimeter of user side respectively through behind the control valve, be connected with the import of cold-producing medium liquid back pipe after the outlet parallel connection of each evaporimeter, the outlet of cold-producing medium liquid back pipe is connected with the import in parallel of invariable frequency compressor and frequency-changeable compressor.
The outlet of cooling tower is connected with the import of cooling water supply pipe, the outlet of cooling water supply pipe is connected with the import of cooling water valve, the outlet of cooling water valve is connected with another import of water-cooled condenser, another outlet of water-cooled condenser is connected with the import of CWR, the outlet of CWR is connected with the import of water pump, the outlet of water pump is connected with the import of cooling water back-water valve (BWV), and the outlet of cooling water back-water valve (BWV) is connected with the import of cooling tower.
The compressor that adopts has two: each one in fixed (5) machine frequently and frequency conversion (0～5) machine.The peak load of supposing user side is Q
0, when the actual load Q of user side [0, Q
0When/2] interval, only start frequency-changeable compressor, invariable frequency compressor does not start; When the actual load Q of user side at [Q
0/ 2, Q
0] when interval, two compressors all start.
The flow process of cold-producing medium is: the gaseous refrigerant of finishing after user side needs is sucked the also gas of boil down to HTHP again by compressor, behind oil eliminator, high-temperature high-pressure refrigerant is managed outer water quench after entering water-cooled condenser, behind liquid reservoir, after passing through the throttling action of heating power expansion valve at last, send into evaporimeter to finish the needs of user side.
The flow process of cooling water is: the cooling water after cooling tower and air are finished heat exchange and cooling, the cold condenser of the laggard entry of adjusting through the cooling water valve, leave condenser after absorbing its heat with the gaseous refrigerant heat exchange of HTHP, by the conveying of water pump and the adjusting of cooling water back-water valve (BWV), the high-temperature cooling water backwater is sent back to cooling tower cool off again at last.
Variable frequency water-ring heat pump air-conditioning unit is compared with the conventional air-conditioning unit, and it has adopted water-loop heat pump, and the mode of employing water-cooled has directly reduced the condensing pressure of cold-producing medium, can improve the efficient of kind of refrigeration cycle.On the other hand, having adopted two compressors is the method for the auxiliary frequency-changeable compressor of invariable frequency compressor, can change the workbench number of compressor according to the variation of user side load, thereby reach purpose of energy saving.Therefore, in conjunction with the characteristics of these two aspects, the energy-saving effect of variable frequency water-ring heat pump air-conditioning unit is tangible.
Description of drawings
Fig. 1 is the structural representation of variable frequency water-ring heat pump air-conditioning unit of the present invention.
Among the figure, 1-invariable frequency compressor, 2-frequency-changeable compressor, 3-oil eliminator, the 4-water-cooled condenser, 5-liquid reservoir, 6-heating power expansion valve, 7-refrigerant feed liquid pipe, the 8-valve, 9-evaporimeter, 10-valve, 11-evaporimeter, the 12-valve, 13-evaporimeter, 14-cold-producing medium liquid back pipe, the 15-cooling tower, 16-cooling water supply pipe, 17-cooling water valve, the 18-CWR, 19-water pump, 20-cooling water back-water valve (BWV).
The specific embodiment
As shown in Figure 1, the present invention includes: invariable frequency compressor 1, frequency-changeable compressor 2, oil eliminator 3, water-cooled condenser 4, liquid reservoir 5, heating power expansion valve 6, refrigerant feed liquid pipe 7, valve 8,10,12, evaporimeter 9,11,13, cold-producing medium liquid back pipe 14, cooling tower 15, cooling water supply pipe 16, cooling water valve 17, CWR 18, water pump 19, cooling water back-water valve (BWV) 20.
Invariable frequency compressor 1 is connected in parallel with frequency-changeable compressor 2, outlet after the parallel connection is connected with the import of oil eliminator 3, the outlet of oil eliminator 3 is connected with the import of water-cooled condenser 4, the outlet of water-cooled condenser 4 is connected with the import of liquid reservoir 5, the outlet of liquid reservoir 5 is connected with the import of heating power expansion valve 6, the outlet of heating power expansion valve 6 is connected with the import of refrigerant feed liquid pipe 7, the outlet of refrigerant feed liquid pipe 7 respectively with valve 8,10 are connected with 12 import, valve 8,10 and 12 outlet respectively with evaporimeter 9,11 are connected with 13 import, evaporimeter 9,11 are connected with the import of cold-producing medium liquid back pipe 14 with 13 outlet, and the outlet of cold-producing medium liquid back pipe 14 is connected with the import in parallel of invariable frequency compressor 1 and frequency-changeable compressor 2.
The outlet of cooling tower 15 is connected with the import of cooling water supply pipe 16, the outlet of cooling water supply pipe 16 is connected with the import of cooling water valve 17, the outlet of cooling water valve 17 is connected with another import of water-cooled condenser 4, another outlet of water-cooled condenser 4 is connected with the import of CWR 18, the outlet of CWR 18 is connected with the import of water pump 19, the outlet of water pump 19 is connected with the import of cooling water back-water valve (BWV) 20, and the outlet of cooling water back-water valve (BWV) 20 is connected with the import of cooling tower 15.
The flow process of cold-producing medium is: the gaseous refrigerant of finishing after user side needs is sucked the also gas of boil down to HTHP again by compressor 1 and 2, after the effect of oil eliminator 3, high-temperature high-pressure refrigerant enters water-cooled condenser 4 backs by the outer water quench of pipe, through behind the liquid reservoir 5, and, send into evaporimeter 7,9 and 11 to finish the needs of user side through after the throttling action of heating power expansion valve 6.Cold-producing medium after finishing user side and needing is got back to compressor 1 and 2 at last and is carried out next one and circulate.
The flow process of cooling water is: the cooling water after cooling tower 15 and air are finished heat exchange and cooling, after the adjusting of cooling water valve 17, enter condenser 4, leave condenser 4 after absorbing its heat with the gaseous refrigerant heat exchange of HTHP, by the conveying of water pump 19 and the adjusting of cooling water back-water valve (BWV) 20, the high-temperature cooling water backwater is sent back to cooling tower 15 cool off again at last.
Claims (4)
1, a kind of variable frequency water-ring heat pump air-conditioning unit, comprise: invariable frequency compressor (1), frequency-changeable compressor (2), oil eliminator (3), water-cooled condenser (4), liquid reservoir (5), heating power expansion valve (6), refrigerant feed liquid pipe (7), valve (8,10,12), evaporimeter (9,11,13), cold-producing medium liquid back pipe (14), cooling tower (15), cooling water supply pipe (16), cooling water valve (17), CWR (18), water pump (19) and cooling water back-water valve (BWV) (20), it is characterized in that, invariable frequency compressor (1) is connected with the import of oil eliminator (3) with outlet after frequency-changeable compressor (2) is connected in parallel, the outlet of oil eliminator (3) is connected with the import of water-cooled condenser (4), the outlet of water-cooled condenser (4) is connected with the import of liquid reservoir (5), the outlet of liquid reservoir (5) is connected with the import of heating power expansion valve (6), the outlet of heating power expansion valve (6) is connected with the import of refrigerant feed liquid pipe (7), the outlet of refrigerant feed liquid pipe (7) respectively with valve (8,10,12) import connects, valve (8,10,12) outlet respectively with evaporimeter (9,11,13) import connects, evaporimeter (9,11,13) outlet is connected with the import of cold-producing medium liquid back pipe (14), cooling tower (15), cooling water supply pipe (16), cooling water valve (17) connects in turn, the outlet of cooling water valve (17) is connected with another import of water-cooled condenser (4), another outlet of water-cooled condenser (4) is connected CWR (18) with the import of CWR (18), water pump (19) is connected in turn with cooling water back-water valve (BWV) (20).
2, variable frequency water-ring heat pump air-conditioning unit according to claim 1 is characterized in that, the outlet of cold-producing medium liquid back pipe (14) is connected with the import in parallel of invariable frequency compressor (1) with frequency-changeable compressor (2).
3, variable frequency water-ring heat pump air-conditioning unit according to claim 1 is characterized in that, the outlet of cooling tower (15) is connected with the import of cooling water supply pipe (16), and the outlet of cooling water supply pipe (16) is connected with the import of cooling water valve (17).
4, variable frequency water-ring heat pump air-conditioning unit according to claim 1, it is characterized in that, the outlet of CWR (18) is connected with the import of water pump (19), the outlet of water pump (19) is connected with the import of cooling water back-water valve (BWV) (20), and the outlet of cooling water back-water valve (BWV) (20) is connected with the import of cooling tower (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610026848 CN1851354A (en) | 2006-05-25 | 2006-05-25 | Variable frequency water-ring heat pump air conditioner set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610026848 CN1851354A (en) | 2006-05-25 | 2006-05-25 | Variable frequency water-ring heat pump air conditioner set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1851354A true CN1851354A (en) | 2006-10-25 |
Family
ID=37132843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610026848 Pending CN1851354A (en) | 2006-05-25 | 2006-05-25 | Variable frequency water-ring heat pump air conditioner set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1851354A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434925A (en) * | 2011-09-06 | 2012-05-02 | 北京天云动力科技有限公司 | Energy-saving air conditioner cooling system in electric control cabinet cluster |
| CN102472519A (en) * | 2009-11-13 | 2012-05-23 | 三菱重工业株式会社 | Heat source system |
| CN102691335A (en) * | 2011-03-21 | 2012-09-26 | 上海耐福金属制造有限公司 | Parallel water pump pipe cooling system |
| CN106500495A (en) * | 2016-12-16 | 2017-03-15 | 江苏天舒电器股份有限公司 | A kind of frequency conversion capability-variable heat pump hot air drying system and its control method |
-
2006
- 2006-05-25 CN CN 200610026848 patent/CN1851354A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102472519A (en) * | 2009-11-13 | 2012-05-23 | 三菱重工业株式会社 | Heat source system |
| CN102472519B (en) * | 2009-11-13 | 2014-07-30 | 三菱重工业株式会社 | Heat source system |
| CN102691335A (en) * | 2011-03-21 | 2012-09-26 | 上海耐福金属制造有限公司 | Parallel water pump pipe cooling system |
| CN102434925A (en) * | 2011-09-06 | 2012-05-02 | 北京天云动力科技有限公司 | Energy-saving air conditioner cooling system in electric control cabinet cluster |
| CN106500495A (en) * | 2016-12-16 | 2017-03-15 | 江苏天舒电器股份有限公司 | A kind of frequency conversion capability-variable heat pump hot air drying system and its control method |
| CN106500495B (en) * | 2016-12-16 | 2022-03-25 | 江苏天舒电器股份有限公司 | Variable-frequency variable-capacity heat pump hot air drying system and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201764750U (en) | Water-source heat pump cold and hot water energy saving device capable of recycling condensation heat of central air-conditioner unit | |
| CN104501445B (en) | A kind of electric motor car Waste Heat Reuse frequency conversion heat pump air-conditioning system and method thereof | |
| JP2014519006A (en) | Heat pump type screw compression multi-central air conditioner | |
| CN105387547A (en) | Multi-source heat-tube energy-saving system and refrigerating method based on multi-source heat tube | |
| CN201488161U (en) | Machine integrated with air conditioner, refrigerator and water heater | |
| CN103398485A (en) | Steam compression refrigerating system device and supercooling method | |
| CN203605512U (en) | Air-cooling type compression condensing unit with supercooled gas-liquid separator | |
| CN1851354A (en) | Variable frequency water-ring heat pump air conditioner set | |
| CN111271893A (en) | Air-conditioning heat pump hot water system and control method thereof | |
| CN110701819A (en) | Three-working-condition system | |
| CN202403450U (en) | Household integrated multifunctional air source heat pump type air conditioning unit | |
| CN213687347U (en) | Evaporative cold air source heat pump adopting variable-frequency variable-internal-volume-ratio compressor | |
| CN201561600U (en) | Ultra low temperature overlapping unit | |
| CN116293948A (en) | Air source air inlet structure | |
| CN114909725B (en) | Efficient energy-saving multi-split system | |
| CN102435008A (en) | Ice storage domestic air-conditioning refrigerating device | |
| CN202452616U (en) | Heat pipe compound type air conditioning unit used for machine room | |
| CN2562121Y (en) | Heat pump central air conditioner set with hot water supply | |
| CN2428737Y (en) | Small frequency-variable wind-cooling heat-pump water-cooling-heating machine group | |
| CN112762532A (en) | Water source heat pump groundwater formula vortex internal conversion heat recovery unit | |
| CN108759156B (en) | Secondary throttling middle incomplete cooling two-stage compression heat pump system | |
| CN202141255U (en) | Year round refrigeration air cooling water chiller | |
| CN201163118Y (en) | Novel refrigeration unit | |
| CN1924484A (en) | Device for hot water production with residual heat of central air conditioner and method thereof | |
| CN209783033U (en) | air source economic benefits and social benefits frequency conversion unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |