CN206522880U - A kind of dynamic ice cold-storage air-cooled variable-frequency cryogenic system - Google Patents
A kind of dynamic ice cold-storage air-cooled variable-frequency cryogenic system Download PDFInfo
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- CN206522880U CN206522880U CN201620344004.6U CN201620344004U CN206522880U CN 206522880 U CN206522880 U CN 206522880U CN 201620344004 U CN201620344004 U CN 201620344004U CN 206522880 U CN206522880 U CN 206522880U
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Abstract
A kind of dynamic ice cold-storage air-cooled variable-frequency cryogenic system, including refrigeration module, the refrigeration module includes screw compressor, condenser, reservoir, evaporator, gas-liquid separator, the frequency-variable screw type compressor is connected with the condenser, the frequency-variable screw type compressor is connected by gas-liquid separator with evaporator, and reservoir is connected to the condenser and evaporator.And employ VFC, leaving water temperature control accuracy can reach ± 0.2 DEG C, it is the stability for strengthening dynamic ice cold storage system well for dynamic ice cold storage system, will not be because temperature be too low and produces ice and blocks up or reduction unit efficiency, also will not be because temperature is too high and reduces ice making efficiency.And using air as cooling medium, nighttime ambient temperature is low, is a kind of efficient cooling medium, and unit efficiency can be made to bring up to water cooling unit, but without the water required for consumption cooling tower.
Description
Technical field
The utility model belongs to ice storage technology field, and in particular to a kind of dynamic ice cold-storage air cooling mechanism and its frequency conversion are low
Warm system.
Background technology
Ice cold-storage unit in the market is typically all outfit two or many identical structural shapes in a unit
Screw type refrigerating compressor or centrifugal refigerating compressor, condensing heat-exchange medium use water.
But there is following defect in above two compressor arrangement：
1st, screw type refrigerating compressor and centrifugal refigerating compressor, because limited by the structure, are fixed rotating speed, so that
Screw type refrigerating compressor is caused to carry out limited energy adjustment；Although centrifugal refigerating compressor can realize limited range
The electrodeless regulation of interior energy, but realized by increasing the method for resistance, it is not economical enough, and its energy conditioner knot
Structure is complicated, controls the requirement with driving high, can not effectively change the running status of unit when changing load.
2nd, in terms of condensing heat-exchange medium, although the heat exchange efficiency of water is a little high, but ice cold-storage unit is at night 0 mostly
Point is used into 8 points of morning, and environment temperature is relatively low, and helical-lobe compressor needs to ensure that pressure at expulsion just can guarantee that refrigeration oil
Road is normally run, therefore can not improve unit efficiency as cooling medium using water at night, anyway waste water；
3rd, general handpiece Water Chilling Units are all single manual control or automatically control operator scheme, it is impossible to meet some specific
Situation is controlled and automatically controlled manually while the demand of operation.In addition, existing general compressor start electric current is very big, to power network
Impact is also very big, so as to be easily caused the damage of power network；
In terms of unit leaving water temperature control accuracy, section holds tune or stepless appearance is adjusted for common having, and precision is all relatively coarse, only
± 2 DEG C can be reached；And for dynamic ice cold storage system, unit allocation precision has a significant impact to dynamic ice cold storage system.
The content of the invention
In view of this, main purpose of the present utility model is to provide the dynamic that a kind of control accuracy is high, energy-saving efficiency is high
The air-cooled cooling body of ice cold-storage and its cooling system.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：
The utility model embodiment provides a kind of dynamic ice cold-storage air cooling mechanism, including refrigeration module, the refrigeration module
Including frequency-variable screw type compressor, condenser, reservoir, evaporator, gas-liquid separator, the frequency-variable screw type compressor and institute
Condenser connection is stated, the frequency-variable screw type compressor is connected by gas-liquid separator with evaporator, and reservoir is connected to
The condenser and evaporator.
Wherein, the evaporator is set to the plate type heat exchanger, the plate type heat exchanger respectively at electric expansion valve with
Gas-liquid separator is connected.
Wherein, the condenser is set to finned heat exchanger, the finned heat exchanger respectively with compressor and liquid storage
Device is connected.
Wherein, in addition to blower fan, the blower fan is connected with the finned heat exchanger, for being carried out to finned heat exchanger
Air is cooled down.
Wherein, coolant drying filter is provided with, the coolant drying filter is connected with the reservoir, for cooling down
Liquid refrigerant in reservoir is dried.
Wherein, electric expansion valve is provided with, the electric expansion valve is connected with the output end of the coolant drying filter,
For by liquid refrigerant, reducing pressure by regulating flow to be exported to evaporator.
A kind of dynamic ice cold-storage air-cooled variable-frequency cryogenic system, including the refrigerating module and control module, the control mould
Block include controller and be connected with frequency-variable screw type compressor the first frequency converter, be connected with eg pump the second frequency converter,
The 3rd frequency converter being connected with ice making pump, the 4th frequency converter being connected with ice-melt pump and the 5th frequency converter being connected with blower fan, institute
The first frequency converter, the second frequency converter, the 3rd frequency converter, the 4th frequency converter, the 5th frequency converter is stated respectively with controller electric signal to connect
Connect.
Wherein, in addition to temperature detecting module, the leaving water temperature of temperature detecting module detection eg pump and ethylene glycol
Return water temperature, temperature detecting module detects the frozen water leaving water temperature and frozen water inflow temperature of ice-melt pump；Temperature detecting module is detected
The freezing inflow temperature and freezing leaving water temperature of ice making pump, the controller are connected with the temperature detecting module electric signal, root
The temperature data control frequency converter work detected according to temperature detecting module.
Wherein, high-pressure switch and low pressure switch are provided with, the high-pressure switch is switched with low pressure
It is connected respectively with controller electric signal.
Compared with prior art, the beneficial effects of the utility model：
And VFC is employed, leaving water temperature control accuracy can reach ± 0.2 DEG C, strengthen dynamic ice cold storage system
Stability, will not be because temperature be too low and produces ice and blocks up or reduction unit efficiency, also will not be because temperature is too high and reduces system
Ice efficiency.
And using air as cooling medium, nighttime ambient temperature is low, is a kind of efficient cooling medium, can make unit
Efficiency is brought up to water cooling unit, but without the water required for consumption cooling tower；
Brief description of the drawings
Fig. 1 is a kind of structural representation of the refrigerating module of dynamic ice cold-storage air-cooled variable-frequency cryogenic system of the present utility model
Figure.
A kind of Fig. 2 structural representations of the control module of dynamic ice cold-storage air-cooled variable-frequency cryogenic system of the present utility model
Figure.
1 --- helical-lobe compressor, 2 --- control module, 3 --- blower fan, 4 --- finned heat exchanger,
5 --- reservoir, 6 --- coolant drying filter, 7 --- electric expansion valve,
8 --- plate type heat exchanger, 9 --- gas-liquid separators
Embodiment
The utility model embodiment provides a kind of dynamic ice cold-storage air cooling mechanism, including refrigeration module, the refrigeration module
Including screw compressor 1, condenser, reservoir 5, evaporator, gas-liquid separator 9, the frequency-variable screw type compressor 1 and institute
Condenser connection is stated, the frequency-variable screw type compressor 1 is connected by gas-liquid separator 9 with evaporator, and reservoir 5 is connected respectively
In the condenser and evaporator.
The evaporator is set to the plate type heat exchanger 8, and the plate type heat exchanger 8 is respectively at electric expansion valve 7 and gas
Liquid/gas separator 9 is connected.The condenser is set to finned heat exchanger 4, the finned heat exchanger 4 respectively with compressor and storage
Liquid device 5 is connected.Including blower fan 3, the blower fan 3 is connected with the finned heat exchanger 4, for being carried out to finned heat exchanger 4
Air is cooled down.Coolant drying filter 6, the coolant drying filter 6 is connected with the reservoir 5, for cooling down reservoir 5
Interior liquid refrigerant is dried.Electric expansion valve 7, the output of the electric expansion valve 7 and the coolant drying filter 6
End connection, for by liquid refrigerant, reducing pressure by regulating flow to be exported to evaporator.
When the utility model handpiece Water Chilling Units work, start frequency-variable screw type compressor 1 first, and realized by frequency converter soft
Start, while according to air conditioner load situation, fluid drive operation.The frequency-variable screw type refrigerating compressor is by the plate-type heat-exchange
Gaseous refrigerant in device 8 after heat absorption evaporation is sucked and is compressed, and the gaseous refrigerant of discharge HTHP enters finned
In heat exchanger 4, coagulated after the air cooling that the gaseous state cryogen of the HTHP in the finned heat exchanger 4 is driven by blower fan 3
The liquid refrigerant formed in liquid refrigerant, finned heat exchanger 4 is stored in reservoir 5, the liquid refrigerant of reservoir 5
It is board-like when entering by entering first plate type heat exchanger 8 after coolant drying filter 6, the reducing pressure by regulating flow of electric expansion valve 7 again
The liquid refrigerant of heat exchanger 8 is absorbed after the heat of chilled water, becomes gaseous refrigerant again, gaseous refrigerant and fraction be not complete
The liquid refrigerant of pervaporation is sunk by the gas-liquid separator 9, liquid refrigerant, and gaseous refrigerant rises is pressed by refrigeration again
Contracting machine is sucked, and realizes kind of refrigeration cycle.When refrigeration duty reduction, screw type refrigerating compressor is automatically adjusted to suitable by frequency converter
Rotating speed produces cold.
A kind of dynamic ice cold-storage air-cooled variable-frequency cryogenic system, including the refrigerating module and control module 2, the control mould
Block 2 include controller and be connected with screw compressor 1 the first frequency converter, be connected with eg pump the second frequency converter, and
The 3rd frequency converter, the 4th frequency converter being connected with ice-melt pump and the 5th frequency converter being connected with blower fan 3 of ice making pump connection, it is described
First frequency converter, the second frequency converter, the 3rd frequency converter, the 4th frequency converter, the 5th frequency converter are connected with controller electric signal respectively.
Wherein, in addition to temperature detecting module, the leaving water temperature of temperature detecting module detection eg pump and ethylene glycol
Return water temperature, temperature detecting module detects the frozen water leaving water temperature and frozen water inflow temperature of ice-melt pump；Temperature detecting module is detected
The freezing inflow temperature and freezing leaving water temperature of ice making pump, the controller are connected with the temperature detecting module electric signal, root
The temperature data control frequency converter work detected according to temperature detecting module.
Wherein, high-pressure switch and low pressure switch are provided with, the high-pressure switch is switched with low pressure
It is connected respectively with controller electric signal.
It is described above, only the utility model preferably embodiment, but protection domain of the present utility model is not
This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model is disclosed
Change or replacement, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should
It is defined by scope of the claims.
Claims (8)
1. a kind of dynamic ice cold-storage air-cooled variable-frequency cryogenic system, it is characterised in that：Including refrigeration module and control module, the control
Molding block include controller and be connected with screw compressor the first frequency converter, be connected with eg pump the second frequency converter,
The 3rd frequency converter being connected with ice making pump, the 4th frequency converter being connected with ice-melt pump and the 5th frequency converter being connected with blower fan, institute
The first frequency converter, the second frequency converter, the 3rd frequency converter, the 4th frequency converter, the 5th frequency converter is stated respectively with controller electric signal to connect
Connect；The refrigeration module includes frequency-variable screw type compressor, condenser, reservoir, evaporator, gas-liquid separator, the frequency conversion
Screw compressor is connected with the condenser, and the frequency-variable screw type compressor is connected by gas-liquid separator with evaporator,
Reservoir is connected to the condenser and evaporator.
2. a kind of dynamic ice cold-storage air-cooled variable-frequency cryogenic system according to claim 1, it is characterised in that：
The evaporator is set to plate type heat exchanger, and the plate type heat exchanger connects respectively at electric expansion valve and gas-liquid separator
It is logical.
3. a kind of dynamic ice cold-storage air-cooled variable-frequency cryogenic system according to claim 2, it is characterised in that：
The condenser is set to finned heat exchanger, and the finned heat exchanger is connected with compressor and reservoir respectively.
4. a kind of dynamic ice cold-storage air-cooled variable-frequency cryogenic system according to claim 3, it is characterised in that：Also include wind
Machine, the blower fan is connected with the finned heat exchanger, for carrying out air cooling to finned heat exchanger.
5. a kind of dynamic ice cold-storage air-cooled variable-frequency cryogenic system according to claim 1, it is characterised in that：It is provided with refrigerant
Device for drying and filtering, the coolant drying filter is connected with the reservoir, for the impurity and water for filtering coolant system
Part.
6. a kind of dynamic ice cold-storage air-cooled variable-frequency cryogenic system according to claim 5, it is characterised in that：It is provided with electronics
Expansion valve, the electric expansion valve is connected with the output end of the coolant drying filter, for by liquid refrigerant, throttling to be dropped
Pressure is exported to evaporator.
7. a kind of dynamic ice cold-storage air-cooled variable-frequency cryogenic system according to claim 1, it is characterised in that：Also include temperature
Detection module, the leaving water temperature of temperature detecting module detection eg pump and the return water temperature of ethylene glycol, temperature detecting module inspection
Survey the frozen water leaving water temperature and frozen water inflow temperature of ice-melt pump；The temperature detecting module detection freezing inflow temperature of ice making pump and cold
Freeze leaving water temperature, the controller is connected with the temperature detecting module electric signal, the temperature detected according to temperature detecting module
Degrees of data control frequency converter work.
8. a kind of dynamic ice cold-storage air-cooled variable-frequency cryogenic system according to claim 7, it is characterised in that：It is provided with high pressure
Pressure switch and low pressure switch, the high-pressure switch are connected with controller electric signal respectively with low pressure switch.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620344004.6U CN206522880U (en) | 2016-04-22 | 2016-04-22 | A kind of dynamic ice cold-storage air-cooled variable-frequency cryogenic system |
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| CN201620344004.6U CN206522880U (en) | 2016-04-22 | 2016-04-22 | A kind of dynamic ice cold-storage air-cooled variable-frequency cryogenic system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016528A (en) * | 2016-04-22 | 2016-10-12 | 广州汉正能源科技有限公司 | Dynamic ice cool storage air cooling mechanism and variable-frequency low-temperature system thereof |
-
2016
- 2016-04-22 CN CN201620344004.6U patent/CN206522880U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016528A (en) * | 2016-04-22 | 2016-10-12 | 广州汉正能源科技有限公司 | Dynamic ice cool storage air cooling mechanism and variable-frequency low-temperature system thereof |
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Address after: 510000 Room 101, 270 baosha Road, Nangang street, Huangpu District, Guangzhou City, Guangdong Province Patentee after: Guangdong Hanzheng Energy Technology Co., Ltd Address before: 510000, room 20, 102 Hou Shan Road, Whampoa District, Guangdong, Guangzhou, Nangang Patentee before: Guangzhou Hanzheng Energy Technology Co., Ltd. |