CN205783523U - A kind of varying capacity, variable air rate Fresh air handling units in parallel - Google Patents
A kind of varying capacity, variable air rate Fresh air handling units in parallel Download PDFInfo
- Publication number
- CN205783523U CN205783523U CN201620482569.0U CN201620482569U CN205783523U CN 205783523 U CN205783523 U CN 205783523U CN 201620482569 U CN201620482569 U CN 201620482569U CN 205783523 U CN205783523 U CN 205783523U
- Authority
- CN
- China
- Prior art keywords
- compressor
- parallel
- adjustable speed
- handling units
- speed fan
- 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.)
- Expired - Fee Related
Links
- 239000003507 refrigerant Substances 0.000 claims abstract description 11
- 239000006200 vaporizer Substances 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 238000001704 evaporation Methods 0.000 abstract description 13
- 230000007547 defect Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 7
- 238000004378 air conditioning Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
This utility model relates to refrigerating machine technical field, particularly to a kind of varying capacity, variable air rate Fresh air handling units in parallel, frequency-changeable compressor that it includes being connected in circulating refrigerant loop, invariable frequency compressor, condenser coil, electric expansion valve A, electric expansion valve B, four way solenoid valve, vaporizer, indoor adjustable speed fan, outdoor adjustable speed fan, it is characterised in that: Fresh air handling units uses parallel connection frequency conversion compressor, invariable frequency compressor, indoor adjustable speed fan, outdoor adjustable speed fan；Evaporating temperature height and compressor easy scaling loss when it overcomes the new air temperature of existing refrigerating operaton higher, when new air temperature is relatively low, evaporating temperature is low and the easy frosting of coil pipe, system runs that power consumption is high and the defect of poor reliability, it is provided that a kind of varying capacity, variable air rate Fresh air handling units in parallel.
Description
Technical field
This utility model relates to refrigerating machine technical field, particularly to a kind of in parallel varying capacity,
Variable air rate Fresh air handling units.
Background technology
By combined type air conditioner after in central air conditioner system, new wind is usually and mixes with indoor return air
Group carries out humiture process, and outdoor new wind enters table after mixing in mixing section with indoor return air
Cold section, air-conditioner host mixing air is cooled down or after heat treated by cold (hot) water provided
Deliver to each air conditioning area.Owing to the resh air requirement of each air conditioning area is relative to the ratio of air-conditioning amount
And differ, therefore the on-demand supply of resh air requirement cannot be realized, flexible adjustment is poor, and temperature is relatively
High new wind (35 DEG C) need to do cooling medium, air-conditioner host evaporating temperature with 7 DEG C of circulated refrigerated waters
Only 0～2 DEG C (referring to pump type heat main frame), by including chilled water pump power consumption consideration, system synthesis is imitated
Rate is low, and power consumption is big.
And although the conventional direct-expansion type new wind new wind of air-treatment unit is directly cooled down by cold-producing medium
Or heating, but owing to Fresh air handling units evaporation side and condensation side inlet temperature are equal, and new air temperature
Excursion is big, exist the new air temperature of refrigerating operaton higher time evaporating temperature the highest, compressor because of
Loading excessive and easy scaling loss, when new air temperature is relatively low, evaporating temperature is the lowest, the easy frosting of coil pipe
And affect unit cold and unit reliability；And during heating operation, when new air temperature is relatively low
Unit is easily accessible again the protection of anti-cold wind.
Utility model content
The purpose of this utility model is the defect for prior art and deficiency, it is provided that Yi Zhongjie
Structure is simple, varying capacity, variable air rate Fresh air handling units a kind of in parallel reasonable in design, easy to use,
Evaporating temperature height and compressor easy scaling loss when it overcomes the new air temperature of existing refrigerating operaton higher,
When new air temperature is relatively low, evaporating temperature is low and the easy frosting of coil pipe, and system runs that power consumption is high and reliability
The defect of difference, it is provided that a kind of varying capacity, variable air rate Fresh air handling units in parallel.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of varying capacity, variable air rate Fresh air handling units in parallel described in the utility model, it includes even
It is connected on the frequency-changeable compressor in circulating refrigerant loop, invariable frequency compressor, condenser coil, electronics
Expansion valve A, electric expansion valve B, four way solenoid valve, vaporizer, indoor adjustable speed fan, room
Outer adjustable speed fan, it is characterised in that: Fresh air handling units uses parallel connection frequency conversion compressor, fixed frequency compression
Machine, indoor adjustable speed fan, outdoor adjustable speed fan.
Further, frequency-changeable compressor and invariable frequency compressor double system or multi-system parallel running.
Further, condenser coil forms assembly A, vaporizer 15 with outdoor adjustable speed fan combination
Assembly B is formed with indoor adjustable speed fan 14 combination.
Further, outside electric expansion valve A is throttling arrangement A, indoor electronics
Expansion valve B is throttling arrangement B.
Further, on invariable frequency compressor 2 frequency-changeable compressor multiple vents, each installation is separating of oil
Device A and oil eliminator B.
After using said structure, this utility model has the beneficial effect that described in the utility model one
Planting varying capacity, variable air rate Fresh air handling units in parallel, it overcomes the new air temperature of existing refrigerating operaton higher
Time evaporating temperature is high and the easy scaling loss of compressor, when new air temperature is relatively low, evaporating temperature is low and coil pipe
Easily frosting, system runs that power consumption is high and the defect of poor reliability, it is provided that a kind of varying capacity in parallel,
Variable air rate Fresh air handling units.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of this utility model；
Fig. 2 is the structural representation of this utility model another embodiment.
Description of reference numerals:
1-frequency-changeable compressor, 2-invariable frequency compressor, 3-oil eliminator A, 4-oil eliminator B,
5-solenoid operated four-way valve, 6-condenser coil, 7-outdoor adjustable speed fan, 8-electric expansion valve A,
9-check valve, 10-reservoir, 11-filter, 12-electric expansion valve B, 13-is unidirectional
Valve, 14-indoor adjustable speed fan, 15-vaporizer, 16-vapour liquid separator, 17-bypasses electricity
Magnet valve.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described.
As it is shown in figure 1, a kind of varying capacity, the new blower fan of variable air rate in parallel described in the utility model
Group, frequency-changeable compressor 1 that it includes being connected in circulating refrigerant loop, invariable frequency compressor 2,
Condenser coil 6, electric expansion valve A8, electric expansion valve B12, four way solenoid valve 5, evaporation
Device 15, indoor adjustable speed fan 14, outdoor adjustable speed fan 7, it is characterised in that: Fresh air handling units
Use parallel connection frequency conversion compressor 1, invariable frequency compressor 2, indoor adjustable speed fan 14, outdoor speed governing
Blower fan 7.
Preferred as one of the present utility model, frequency-changeable compressor 1 with invariable frequency compressor 2 pairs is
System or multisystem parallel running.
Preferred as one of the present utility model, condenser coil 6 combines with outdoor adjustable speed fan 7
Forming assembly A, vaporizer 15 forms assembly B with indoor adjustable speed fan 14 combination.
Preferred as one of the present utility model, outside electric expansion valve A8 is throttling dress
Putting A, indoor electric expansion valve B12 is throttling arrangement B.
Preferred as one of the present utility model, invariable frequency compressor 2 is in parallel with frequency-changeable compressor 1
Each installation oil eliminator A3 and oil eliminator B4 on air vent.
In this utility model, the design includes the condenser coil being connected in circulating refrigerant loop
6, electric expansion valve A8, electric expansion valve B12, four way solenoid valve 5, vaporizer 15, oil
Separator A3, oil eliminator B4, reservoir 10, check valve 9, filter 11, bypass
Electromagnetic valve 17, vapour liquid separator 16.Attachment structure relation between above-mentioned component is prior art
Fresh air handling units structure, therefore the design do not do structure describe.
This utility model, compared with traditional Fresh air handling units, is characterized in: it also includes frequency conversion pressure
Contracting machine 1 runs with invariable frequency compressor 2 double system or multi-system varying capacity in parallel, condenser coil 6
Variable air rate variable working condition reliability service, vaporizer 15 and indoor tune is combined with outdoor adjustable speed fan 7
Speed blower fan 14 combines variable air rate variable working condition by running.
Operation principle of the present utility model is as follows:
Frequency-changeable compressor 1 and invariable frequency compressor 2 suck the low-temp low-pressure system of flash-pot 15
Refrigerant vapor, to the superheated vapor becoming High Temperature High Pressure after the both vapor compression acting of low-temp low-pressure.
Then, the refrigerant vapour of high pressure-temperature enters condenser coil 6, by outdoor adjustable speed fan 7
Forced ventilation, the surrounding air relatively low with temperature carries out heat exchange, will be released in condensation process
The heat put passes to air, makes gaseous refrigerant be condensed into highly pressurised liquid.Highly pressurised liquid is through electricity
Sub-expansion valve B12, becomes low-temp low-pressure and the higher gas-liquid two-phase of content liquid after reducing pressure by regulating flow
Mixture, these gas-fluid two-phase mixtures enter vaporizer 15.In vaporizer 15, low temperature
The cold-producing medium of low pressure is by the new wind generation heat exchange of a relatively high with temperature, and refrigerant liquid will
Generating gasification, becomes low-temperature low-pressure refrigerant steam after absorbing the heat of cold new wind air, thus
The temperature reducing new wind reaches purpose of freezing, and indoor adjustable speed fan 14 new wind air again is sent into
Indoor.Refrigerant vapour after gasification will be inhaled into frequency-changeable compressor 1 and invariable frequency compressor 2,
Circulate and so forth.
As it is shown in figure 1, detailed description of the invention one: new air temperature and new wind load change greatly, become
Frequently the varying capacity in parallel of compressor 1 and invariable frequency compressor 2 combination control Fresh air handling units 22%～
Step-less adjustment in 116% range of capacity.When the new air temperature of refrigeration mode is relatively low, new wind load declines,
The automatic frequency reducing of frequency-changeable compressor 1 runs, and both can reduce input power, it is possible to avoid evaporation coil
15 frostings because evaporating temperature is too low, improve operational reliability；When the new air temperature that freezes is too high
Indoor adjustable speed fan 14 fall-back, can be prevented effectively from invariable frequency compressor 2 and transship, and can drop
Low-energy-consumption；Heat new air temperature too low time the indoor automatic reductions of speed of adjustable speed fan 14, it is to avoid
Condensing pressure is too low and affects unit heating capacity and reliability；Outdoor when the new air temperature that freezes is too low
Adjustable speed fan fall-back, keeps normal condensing pressure.
As in figure 2 it is shown, detailed description of the invention two: when frequency-changeable compressor 1 and invariable frequency compressor 2
When combination can not meet capacity regulating requirement and wide condition range, use a frequency-changeable compressor 1
With two invariable frequency compressor 2 varying capacity in parallel regulations.System is run more compared with embodiment one
Reliably, new wind operating mode range of operation is broader, energy expenditure is less.
The above is only better embodiment of the present utility model, therefore all special according to this utility model
The equivalence that profit structure, feature and principle described in application range is done changes or modifies, and all includes
In this utility model patent claim.
Claims (5)
1. a varying capacity in parallel, variable air rate Fresh air handling units, frequency-changeable compressor (1) that it includes being connected in circulating refrigerant loop, invariable frequency compressor (2), condenser coil (6), electric expansion valve A (8), electric expansion valve B (12), four way solenoid valve (5), vaporizer (15), indoor adjustable speed fan (14), outdoor adjustable speed fan (7), it is characterised in that: Fresh air handling units uses parallel connection frequency conversion compressor (1), invariable frequency compressor (2), indoor adjustable speed fan (14), outdoor adjustable speed fan (7).
A kind of varying capacity, variable air rate Fresh air handling units in parallel the most according to claim 1, it is characterised in that: frequency-changeable compressor (1) and invariable frequency compressor (2) double system or multi-system parallel running.
A kind of varying capacity, variable air rate Fresh air handling units in parallel the most according to claim 1, it is characterized in that: condenser coil (6) and outdoor adjustable speed fan (7) combination form assembly A, vaporizer (15) forms assembly B with indoor adjustable speed fan (14) combination.
A kind of varying capacity, variable air rate Fresh air handling units in parallel the most according to claim 1, it is characterised in that: outside electric expansion valve A (8) is throttling arrangement A, and indoor electric expansion valve B (12) is throttling arrangement B.
A kind of varying capacity, variable air rate Fresh air handling units in parallel the most according to claim 1, it is characterised in that: invariable frequency compressor (2) is each with on frequency-changeable compressor (1) multiple vents installs oil eliminator A (3) and oil eliminator B (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620482569.0U CN205783523U (en) | 2016-05-23 | 2016-05-23 | A kind of varying capacity, variable air rate Fresh air handling units in parallel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620482569.0U CN205783523U (en) | 2016-05-23 | 2016-05-23 | A kind of varying capacity, variable air rate Fresh air handling units in parallel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205783523U true CN205783523U (en) | 2016-12-07 |
Family
ID=58113490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620482569.0U Expired - Fee Related CN205783523U (en) | 2016-05-23 | 2016-05-23 | A kind of varying capacity, variable air rate Fresh air handling units in parallel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205783523U (en) |
-
2016
- 2016-05-23 CN CN201620482569.0U patent/CN205783523U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 312300 Zhejiang city of Shaoxing province Shangyu city street high road No. 18 Patentee after: ZHEJIANG KING Co.,Ltd. Address before: 312300 Zhejiang city of Shaoxing province Shangyu city street high road No. 18 Patentee before: ZHEJIANG KING AIR CONDITIONER CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |