CN105444483B - A kind of flooded screw mechanism ice maker group - Google Patents
A kind of flooded screw mechanism ice maker group Download PDFInfo
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- CN105444483B CN105444483B CN201510743852.4A CN201510743852A CN105444483B CN 105444483 B CN105444483 B CN 105444483B CN 201510743852 A CN201510743852 A CN 201510743852A CN 105444483 B CN105444483 B CN 105444483B
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Abstract
The present invention provides a kind of flooded screw mechanism ice maker group, including compressor, evaporative condenser, external oil eliminator, low pressure recycle bucket, spiral evaporator and reservoir, compressor refrigerant outlet connects external oil eliminator refrigerant inlet, the import of the refrigerant outlet connection evaporative condenser of oil eliminator, the import of the outlet connection reservoir of evaporative condenser, the refrigerant inlet of the outlet connection low pressure recycle bucket of reservoir, the refrigerant inlet of the refrigerant outlet connection spiral evaporator of low pressure recycle bucket, the refrigerant outlet of spiral evaporator is connected with the air inlet of low pressure recycle bucket, the gas outlet of low pressure recycle bucket and the refrigerant inlet of compressor connect.Flooded screw mechanism ice maker group of the present invention absorbs the characteristics of ammonia refrigeration energy-conservation, good refrigeration effect and freon safe ready, greatly improve the ice making efficiency using freon as refrigerant system, comprehensive energy efficiency ratio is obviously improved, energy consumption reduces, and ice making unit of the present invention is had the extremely strong market competitiveness.
Description
Technical field
The present invention relates to technical field of central air, more particularly to a kind of flooded screw mechanism ice maker group.
Background technology
Ice making unit has a variety of refrigeration modes at present, then mainly has freon refrigeration and ammonia refrigeration two by refrigerant division
Kind, freon refrigeration pattern uses for many years, system maturation, thus safe, and maintenance cost is low.And ammonia ice making is relative to fluorine profit
Hold high its good refrigeration effect, ice making efficiency high, the principle difference of two kinds of refrigeration systems due to being based respectively on two kinds of refrigerants, equipment
Set it is different, can not carry out it is general, therefore, the advantages of existing ice making unit can not take into account two kinds of ice making principles well, because
And two kinds of effects of energy-conservation and safety also can not be just realized simultaneously.
Therefore, prior art needs further to improve.
The content of the invention
In view of the deficiencies in the prior art, the invention reside in provide a kind of flooded screw mechanism ice maker group, it is intended to solves existing
There is the problem of ice making unit can not realize energy-conservation and high security simultaneously.
Technical scheme is as follows：
A kind of flooded screw mechanism ice maker group, wherein, including compressor, evaporative condenser, external oil eliminator, low pressure
Circulation barrel, spiral evaporator and reservoir, the refrigerant outlet of the compressor connect the refrigerant inlet of external oil eliminator,
The import of the refrigerant outlet connection evaporative condenser of the oil eliminator, the outlet connection reservoir of the evaporative condenser
Import, the refrigerant inlet of the outlet connection low pressure recycle bucket of the reservoir, the refrigerant outlet of the low pressure recycle bucket connect
The refrigerant inlet of spiral evaporator is connect, the refrigerant outlet of the spiral evaporator is connected with the air inlet of low pressure recycle bucket,
The gas outlet of the low pressure recycle bucket and the refrigerant inlet of compressor connect；Refrigerant gas after compressor compresses is through external
Evaporative condenser condensation is entered after oil eliminator separation, refrigerant enters in reservoir after condensation, freezes in the reservoir
Agent enters low pressure recycle bucket and further flowed into as needed carries out heat exchange in spiral evaporator, complete the system after heat exchange
Cryogen is returned in low pressure recycle bucket from spiral evaporator through air inlet, and the refrigerator gas in low pressure recycle bucket passes through gas outlet
Into in compressor.
Described flooded screw mechanism ice maker group, wherein, the refrigeration used in the flooded screw mechanism ice maker group
Agent is freon.
Described flooded screw mechanism ice maker group, wherein, the low pressure recycle bucket set location is higher than spiral evaporator
Set location, the refrigerant in low pressure recycle bucket is set to enter spiral evaporator under gravity through refrigerant outlet.
Described flooded screw mechanism ice maker group, wherein, the difference in height of the low pressure recycle bucket and spiral evaporator is
1.2-2.0 rice.
Described flooded screw mechanism ice maker group, wherein, the flooded screw mechanism ice maker group also includes being used to store up
Deposit the machine oil storage tank of machine oil, the machine oil outlet on the external oil eliminator is connected with the import of machine oil storage tank, and the machine oil stores up
The machine oil outlet of tank is connected with the engine oil inlet on compressor.
Described flooded screw mechanism ice maker group, wherein, the spiral evaporator includes being provided with refrigerant inlet
Input pipe and the efferent duct for being provided with refrigerant outlet, spiral comb, spiral shell have been arranged side by side between the input pipe and efferent duct
Rotation comb both ends are connected with input pipe and efferent duct respectively, wherein, one is provided with the input pipe and is used to separate refrigerant
With the division board of machine oil, the division board is along input pipe Diameter distribution so as to which input pipe inside division is empty up and down into what is be connected
Between.
Described flooded screw mechanism ice maker group, wherein, return line is provided with the input pipe and passes through oil return
Pipeline is connected to compressor, and jet pump is provided with the return line, and the machine oil deposited in the input pipe passes through jet pump
Enter compressor along return line.
Described flooded screw mechanism ice maker group, wherein, the compressor is arranged to more, the circulation of each compressor
Loop is in parallel.
Beneficial effect：The present invention provides a kind of flooded screw mechanism ice maker group, and the ice making unit absorbs ammonia refrigeration section
The characteristics of energy, good refrigeration effect and freon safe ready, greatly improve the refrigeration using freon as refrigerant system
Efficiency, comprehensive energy efficiency ratio are obviously improved, and energy consumption is greatly reduced, and unit running is safe, make the full-liquid type spiral shell of the present invention
Bar mechanism ice maker group has the extremely strong market competitiveness in ice-making technology field.
Brief description of the drawings
Fig. 1 is the configuration diagram of flooded screw mechanism ice maker group in the specific embodiment of the invention.
Fig. 2 is the structural representation of spiral evaporator in the specific embodiment of the invention.
Embodiment
The present invention provides a kind of flooded screw mechanism ice maker group, to make the purpose of the present invention, technical scheme and effect more
Add clear, clear and definite, the present invention is described in more detail below.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
A kind of flooded screw mechanism ice maker group as shown in Figure 1, wherein, including compressor 100, evaporative condenser 200,
External oil eliminator 300, low pressure recycle bucket 400, spiral evaporator 500 and reservoir 700, the refrigerant of the compressor 100
Outlet connects the refrigerant inlet of external oil eliminator 300, the refrigerant outlet connection evaporative condenser 200 of the oil eliminator
Import, the evaporative condenser 200 outlet connection reservoir 700 import, the reservoir 700 outlet connection low pressure
The refrigerant inlet of circulation barrel 400, the refrigerant of the refrigerant outlet connection spiral evaporator 500 of the low pressure recycle bucket 400
Import, the refrigerant outlet of the spiral evaporator 500 are connected with the air inlet of low pressure recycle bucket 400, the low pressure recycle bucket
400 gas outlet is connected with the refrigerant inlet of compressor 100；Refrigerant gas after compressor compresses is through external oil eliminator
Evaporative condenser condensation is entered after separation, refrigerant enters in reservoir 700 after condensation, refrigerant root in the reservoir
According to needing to enter low pressure recycle bucket 400 and further flow into spiral evaporator 500 to absorb heat, the refrigerant after heat absorption is from spiral
Returned in evaporator 500 through air inlet in low pressure recycle bucket 400, the refrigerator gas in low pressure recycle bucket 400 passes through gas outlet
Next kind of refrigeration cycle is formed into compressor 100.
Wherein, the effect of low pressure recycle bucket is that the refrigerant that will be sent in reservoir is further cold by the air-breathing of compressor
But after, with the method for gravity supply, it is fed in spiral evaporator and absorbs heat, the gas after heat absorption is returned to low pressure recycle bucket import
Further gas-liquid separation is carried out, the gas after separation enters back into compressor, and it is white to ensure that compressor will not fall.The full-liquid type of the present invention
Refrigerant used in screw mechanism ice maker group is freon.Also, the low pressure recycle bucket set location is set higher than spiral evaporator
Seated position, the refrigerant in low pressure recycle bucket is set to enter spiral evaporator under gravity through refrigerant outlet.The present invention's
Flooded screw mechanism ice maker group changes the traditional feed liquid way of freon refrigeration system, is substituted using gravity supply traditional
Expansion valve supply refrigeration, distributor is added to cause refrigerator pipes refrigeration distribution uneven using expansion valve so as to solve traditional freon
The problem of, the spiral evaporator of the present invention can be made to realize that complete equipilibrium is freezed, so as to substantially increase freon ice making efficiency,
And electric energy is saved.
Preferably, the difference in height of the low pressure recycle bucket and spiral evaporator is 1.2-2.0 rice.Can under this difference in height
Ensure the efficient operation of spiral evaporator, make it have highest heat exchanger effectiveness, while also ensure that refrigerant circulation flows back
In time, it is ensured that the normal trouble free service of compressor.
Specifically, the flooded screw mechanism ice maker group also includes being used for the machine oil storage tank 600 for storing machine oil, described outer
Put the outlet of the machine oil on oil eliminator to be connected with the import of machine oil storage tank, the machine oil outlet of the machine oil storage tank 600 and compressor
Engine oil inlet connection on 100.External oil eliminator can be separated the mixed oil and gas after compressor, and will separation
Machine oil afterwards is back in machine oil storage tank to be used for compressor, and the refrigerant gas isolated then enters evaporative condenser and carried out
Condensation cooling, the refrigerant after evaporative condenser, which enters in reservoir, to be stored, and can be passed at any time in low pressure recycle bucket
Participate in kind of refrigeration cycle.
Certainly, flooded screw mechanism ice maker group of the invention also includes control system, and the control system controls for PLC
System, it monitors the situation of whole system and can basis according to the work of testing result automatic adjustment system, the control system
The work of ice making unit feedback adjustment compressor, such as the control system are set with low pressure recycle bucket, reservoir, machine oil storage tank etc.
The connections such as magnetic induction liquid level gauge, magnetic inducted level switch and the floating ball type switch of standby middle setting, so as to realize system operation shape
The real-time monitoring of state, and system can effectively be adjusted according to feedback data, it is ensured that system is in safe and reliable all the time
State.
The ice-making process of ice making unit of the present invention, which can be sketched, is：After ice making unit starting, the refrigerant in reservoir enters
Into low pressure recycle bucket, and enter progress heat exchange in spiral evaporator along pipeline under gravity and become gaseous state, complete
The refrigerant of heat exchange is returned in low pressure recycle bucket, the refrigerant of liquid and the gas on bucket top in low pressure recycle bucket now be present
State refrigerant, gaseous refrigerant is drawn into be compressed in compressor after enter in external oil eliminator, through it is external oil separate
Device will be passed into cooling in evaporative condenser after the machine oil separation in gas and be condensed into liquid, then goes through in reservoir and stores
Wait to enter next kind of refrigeration cycle, the machine oil that external oil eliminator is isolated is back to machine oil storage tank, machine oil storage tank and compressor
Connection supplements machine oil for compressor at any time.In kind of refrigeration cycle, because refrigerant from low pressure recycle bucket enters spiral evaporator
It is to be pumped into by Action of Gravity Field without traditional, therefore present invention saves energy consumption, while by Action of Gravity Field to spiral
The mode of evaporator feed flow causes the evaporator in spiral evaporator to be in " full saturation " state, can make its high load capacity work
Make, so as to have high heat exchanger effectiveness so that the ice making efficiency of present system is significantly larger than traditional freon ice making system
System.
The spiral evaporator of the present invention is compared to traditional fluorine horizontal-type evaporator or refrigeration piping accumbency mode, and it is significantly
The evaporation rate of freon is accelerated, improves heat exchanger effectiveness, thus improves refrigeration efficiency, energy consumption reduces.This hair simultaneously
The feed liquid way of bright flooded screw mechanism ice maker group in turn ensures that the safe and reliable requirement of freon.
In preferred embodiment, as shown in Fig. 2 spiral evaporator bag used in the flooded screw mechanism ice maker group of the present invention
Include the input pipe 510 for being provided with refrigerant inlet and the efferent duct 520 for being provided with refrigerant outlet, the input pipe and efferent duct
Between spiral comb 530 has been arranged side by side, spiral comb both ends are connected with input pipe and efferent duct respectively, wherein, it is described defeated
Enter to be provided with one in pipe and be used to separating the division board 540 of refrigerant and machine oil, the division board along input pipe Diameter distribution so as to
By input pipe inside division into the space up and down being connected.
Specifically, return line 550 is provided with the input pipe and compressor is connected to by return line, described time
Jet pump is provided with oil pipe line, the machine oil deposited in the input pipe enters compressor by jet pump along return line.Institute
The speed that stating jet pump makes the pressure energy of gases at high pressure be converted to kinetic energy and make high pressure draught after nozzle reaches one very high
Value, now the region around fluid is in negative pressure state, and enters back into diffusing opening after low-pressure fluid introducing is mixed two fluids,
Convert thereof into pressure energy and complete whole ejector action.Specifically, conveying of the jet pump by supplying refrigerant to compressor is moved
Power, pneumatics is formed in jet pump, so as to drive the input pipe inner engine oil to enter in jet pump, and with the refrigerant one of conveying
Rise and enter in compressor with make up compressor inner engine oil.
Further, the division board is fixed with the connection at input pipe both ends respectively by its both ends, the division board
In horizontal positioned, the gap connected for upper and lower space is formed between its two side and input tube wall.
During the ice making unit work of the present invention, as refrigerant constantly enters spiral evaporator, precipitated in spiral evaporator
Machine oil it is also more and more, under the iris action of division board, machine oil can flow to the bottom of input pipe along division board both sides gap,
Therefore, in the input pipe of spiral evaporator, the machine oil proportion more and more higher of division board bottom, controlled in control system
Under, the machine oil under division board is drawn into return line 550 after injection pump startup, machine oil is back to compressor along return line
Middle participation kind of refrigeration cycle, and spiral evaporator due to eliminate machine oil sedimentation the drawbacks of, its also ensure that the present invention ice machine
System system remains good refrigeration efficiency, while overcomes traditional ice-making system and need machine oil is continuously replenished and cause system to transport
The drawbacks of row cost increase, substantially increase the reliability of system operation.
The present invention provides a kind of flooded screw mechanism ice maker group, and the ice making unit absorbs ammonia refrigeration energy-conservation, refrigeration effect
Fruit is good and the characteristics of freon safe ready, greatly improves the refrigerating efficiency using freon as refrigerant system, comprehensive
Energy Efficiency Ratio is obviously improved, and energy consumption is greatly reduced, and unit running is safe, makes the flooded screw mechanism ice maker of the present invention
Group has the extremely strong market competitiveness in ice-making technology field.
It should be appreciated that the application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can
To be improved or converted according to the above description, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Protect scope.
Claims (3)
- A kind of 1. flooded screw mechanism ice maker group, it is characterised in that including compressor, evaporative condenser, external oil eliminator, Low pressure recycle bucket, spiral evaporator and reservoir, the refrigerant outlet of the compressor connect the refrigerant of external oil eliminator Import, the import of the refrigerant outlet connection evaporative condenser of the oil eliminator, the outlet connection storage of the evaporative condenser The import of liquid device, the refrigerant inlet of the outlet connection low pressure recycle bucket of the reservoir, the refrigerant of the low pressure recycle bucket The refrigerant inlet of outlet connection spiral evaporator, the refrigerant outlet of the spiral evaporator and the air inlet of low pressure recycle bucket Connection, the gas outlet of the low pressure recycle bucket and the refrigerant inlet of compressor connect；Refrigerant gas after compressor compresses Evaporative condenser condensation is entered after the separation of external oil eliminator, refrigerant enters in reservoir after condensation, the reservoir Middle refrigerant enters low pressure recycle bucket and further flowed into as needed carries out heat exchange in spiral evaporator, complete heat exchange Refrigerant afterwards is returned in low pressure recycle bucket from spiral evaporator through air inlet, and the refrigerant gas in low pressure recycle bucket passes through Gas outlet enters in compressor；The refrigerant used in the flooded screw mechanism ice maker group is freon；The low pressure recycle bucket set location is higher than spiral evaporator set location, makes the refrigerant in low pressure recycle bucket through refrigeration Agent outlet enters spiral evaporator under gravity；The difference in height of the low pressure recycle bucket and spiral evaporator is 1.2-2.0 rice；The spiral evaporator includes being provided with the input pipe of refrigerant inlet and is provided with the efferent duct of refrigerant outlet, described Spiral comb has been arranged side by side between input pipe and efferent duct, spiral comb both ends are connected with input pipe and efferent duct respectively, Wherein, one is provided with the input pipe and is used to separating the division board of refrigerant and machine oil, the division board is along input pipe caliber Distribution so as to by input pipe inside division into the space up and down being connected；Return line is provided with the input pipe and compressor is connected to by return line, is provided with the return line Jet pump, the machine oil of the interior deposition of the input pipe enter compressor by jet pump along return line.
- 2. flooded screw mechanism ice maker group according to claim 1, it is characterised in that the flooded screw mechanism ice Unit also includes being used for storing the machine oil storage tank of machine oil, machine oil outlet and the import of machine oil storage tank on the external oil eliminator Connection, the machine oil outlet of the machine oil storage tank are connected with the engine oil inlet on compressor.
- 3. flooded screw mechanism ice maker group according to claim 1, it is characterised in that the compressor is arranged to more Platform, the circulation loop of each compressor are in parallel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510743852.4A CN105444483B (en) | 2015-11-05 | 2015-11-05 | A kind of flooded screw mechanism ice maker group |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510743852.4A CN105444483B (en) | 2015-11-05 | 2015-11-05 | A kind of flooded screw mechanism ice maker group |
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| CN105444483A CN105444483A (en) | 2016-03-30 |
| CN105444483B true CN105444483B (en) | 2018-01-23 |
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| CN107339840A (en) * | 2017-08-18 | 2017-11-10 | 浙江冰欧新能源科技有限公司 | A kind of energy-saving mobile ice machine |
| CN107677001B (en) * | 2017-09-15 | 2020-02-11 | 北京市京科伦冷冻设备有限公司 | Independent humidification type carbon dioxide refrigerating system for fruit and vegetable ice temperature three-dimensional warehouse |
| CN108534415A (en) * | 2018-01-25 | 2018-09-14 | 山东宝成制冷设备有限公司 | A kind of direct-cooling type ice machine |
| CN108278802A (en) * | 2018-01-25 | 2018-07-13 | 山东宝成制冷设备有限公司 | A kind of gravity force liquid-supply ice machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5647225A (en) * | 1995-06-14 | 1997-07-15 | Fischer; Harry C. | Multi-mode high efficiency air conditioning system |
| CN201363948Y (en) * | 2009-02-27 | 2009-12-16 | 天津新技术产业园区大远东制冷设备工程技术有限公司 | Refrigerating machine utilizing fluorine pump to supply liquid |
| CN102506523B (en) * | 2011-10-19 | 2016-02-17 | 广东美的制冷设备有限公司 | Parallel-flow heat exchanger |
| CN202361698U (en) * | 2011-11-30 | 2012-08-01 | 武汉新世界制冷工业有限公司 | Thermo-syphon oil cooling system of screw refrigerating compressor |
| CN204240650U (en) * | 2014-11-13 | 2015-04-01 | 山东三九制冷设备有限公司 | Spiral cooling grid |
| CN205192015U (en) * | 2015-11-05 | 2016-04-27 | 谭洪德 | Hydraulic filling formula screw rod mechanism ice maker group |
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