CN105299941A - Water cooling unit of full-liquid type screw machine - Google Patents
Water cooling unit of full-liquid type screw machine Download PDFInfo
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- CN105299941A CN105299941A CN201510743876.XA CN201510743876A CN105299941A CN 105299941 A CN105299941 A CN 105299941A CN 201510743876 A CN201510743876 A CN 201510743876A CN 105299941 A CN105299941 A CN 105299941A
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Abstract
The invention provides a water cooling unit of a full-liquid type screw machine. The water cooling unit comprises a main engine, an evaporator, an oil separator, a low-pressure circulation barrel and a horizontal evaporator. A refrigerant outlet of the main engine is connected with a refrigerant inlet of the oil separator. A refrigerant outlet of the oil separator is connected with an inlet of the evaporator. An outlet of the evaporator is connected with a refrigerant inlet of the low-pressure circulation barrel. A refrigerant outlet of the low-pressure circulation barrel is connected with a refrigerant inlet of the horizontal condenser. A refrigerant outlet of the horizontal condenser is connected with an air inlet of the low-pressure circulation barrel. An air outlet of the low-pressure circulation barrel is connected with a refrigerant inlet of the main engine. The water cooling unit of the full-liquid type screw machine has the beneficial effects that ammonia is capable of saving refrigeration energy and good in refrigerating effect and freon is safe and convenient to use, and the refrigerating efficiency of the system with freon as a refrigerant is greatly improved; the comprehensive energy efficiency ratio is remarkably increased, energy consumption is greatly reduced, and thus long-term stable automatic operation can be achieved; and the problems that an existing water cooling unit is high in energy consumption and operation and maintaining cost are solved.
Description
Technical field
The present invention relates to refrigeration technology field, particularly relate to a kind of flooded screw machine handpiece Water Chilling Units.
Background technology
Existing handpiece Water Chilling Units is divided by cold-producing medium and is mainly contained freon refrigeration and ammonia refrigeration two kinds, ammonia is relative to its good refrigeration effect of freon, refrigerated energy-saving, but it is low compared to the security of freon handpiece Water Chilling Units, system maintenance cost is high, and freon handpiece Water Chilling Units has safe and reliable, to be easy to maintenance feature usually.And owing to using the handpiece Water Chilling Units of two kinds of cold-producing mediums refrigeration plant used to arrange difference, thus cannot carry out general, this just makes existing handpiece Water Chilling Units cannot have refrigerating efficiency height and security these two kinds of effects high simultaneously.
Therefore, prior art needs to improve further.
Summary of the invention
In view of the deficiencies in the prior art, the invention reside in and a kind of flooded screw machine handpiece Water Chilling Units is provided, be intended to solve existing handpiece Water Chilling Units and cannot have the problem that refrigerating efficiency is high and security is high simultaneously.
Technical scheme of the present invention is as follows:
A kind of flooded screw machine handpiece Water Chilling Units, wherein, comprise main frame, evaporimeter, oil eliminator, low pressure recycle bucket, horizontal condenser and reservoir, the refrigerant outlet of described main frame connects the refrigerant inlet of oil eliminator, the refrigerant outlet of described oil eliminator connects the import of evaporimeter, the outlet of described evaporimeter connects the import of reservoir, described reservoir outlet connects the refrigerant inlet of low pressure recycle bucket, the refrigerant outlet of described low pressure recycle bucket connects the refrigerant inlet of horizontal condenser, the refrigerant outlet of described horizontal condenser is connected with the air inlet of low pressure recycle bucket, the described gas outlet of low pressure recycle bucket is connected with the refrigerant inlet of main frame, refrigerant gas after main frame compression enters into evaporator condensation after oil eliminator is separated, after condensation, cold-producing medium enters into low pressure recycle bucket and flows into horizontal condenser further and absorbs heat, cold-producing medium after heat absorption is got back in low pressure recycle bucket through air inlet from horizontal condenser, and the refrigerator gas in low pressure recycle bucket is entered in main frame by gas outlet and forms next kind of refrigeration cycle.
Described flooded screw machine handpiece Water Chilling Units, wherein, flooded screw machine handpiece Water Chilling Units cold-producing medium used is freon.
Described flooded screw machine handpiece Water Chilling Units, wherein, described low pressure recycle bucket setting position, higher than horizontal condenser setting position, makes the cold-producing medium in low pressure recycle bucket enter horizontal condenser under gravity through refrigerant outlet.
Described flooded screw machine handpiece Water Chilling Units, wherein, the difference in height of described low pressure recycle bucket and horizontal condenser is 1.2-2.1 rice.
Described flooded screw machine handpiece Water Chilling Units, wherein, the machine oil outlet of described oil eliminator connects the machine oil import of main frame.
Described flooded screw machine handpiece Water Chilling Units, wherein, the oil sac for storing machine oil is provided with bottom described horizontal condenser, described horizontal condenser connects oil sac oil sac by pipeline, described oil sac is connected to main frame by return line, described return line is provided with jet pump, and the machine oil of described horizontal condenser deposition enters oil sac and makes machine oil enter main frame along return line further by jet pump.
Described flooded screw machine handpiece Water Chilling Units, wherein, described main frame is set to multiple stage, and the closed circuit of each main frame is in parallel.
Beneficial effect: the invention provides a kind of flooded screw machine handpiece Water Chilling Units, by the system of uniqueness, this handpiece Water Chilling Units is absorbed, and ammonia refrigeration is energy-conservation, the feature of good refrigeration effect and freon safe ready, greatly improve the refrigerating efficiency using freon as refrigerant system, comprehensive energy efficiency ratio is obviously promoted, energy consumption significantly reduces, thus makes handpiece Water Chilling Units of the present invention have the extremely strong market competitiveness.
Accompanying drawing explanation
Fig. 1 is the configuration diagram of flooded screw machine handpiece Water Chilling Units in the specific embodiment of the invention.
Detailed description of the invention
The invention provides a kind of flooded screw machine handpiece Water Chilling Units, for making object of the present invention, technical scheme and effect clearly, clearly, the present invention is described in more detail below.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
A kind of flooded screw machine handpiece Water Chilling Units as shown in Figure 1, comprise main frame 100(and helical-lobe compressor), evaporimeter 200, oil eliminator 300, low pressure recycle bucket 400 and horizontal condenser 500, the refrigerant outlet of described main frame 100 connects the refrigerant inlet of oil eliminator 300, the refrigerant outlet of described oil eliminator 300 connects the import of evaporimeter 200, the outlet of described evaporimeter 200 connects the import of reservoir 600, described reservoir 600 exports the refrigerant inlet connecting low pressure recycle bucket 400, the refrigerant outlet of described low pressure recycle bucket 400 connects the refrigerant inlet of horizontal condenser, the refrigerant outlet of described horizontal condenser 500 is connected with the air inlet of low pressure recycle bucket 400, the gas outlet of described low pressure recycle bucket 400 is connected with the refrigerant inlet of main frame 100, refrigerant gas after main frame 100 compresses enters into evaporimeter 200 condensation after oil eliminator 300 is separated, after condensation, cold-producing medium enters in reservoir 600 and stores, in reservoir, cold-producing medium enters into low pressure recycle bucket 400 and flows into horizontal condenser 500 further and absorbs heat, complete heat exchange, cold-producing medium after heat absorption is got back in low pressure recycle bucket 400 through air inlet from horizontal condenser 500, and the refrigerator gas in low pressure recycle bucket 400 is entered in main frame by gas outlet and forms next kind of refrigeration cycle.
Mixed oil and gas after main frame can be separated by oil eliminator, and the machine oil after being separated is back in main frame for main frame, isolated refrigerant gas then enters evaporimeter and carries out condensation cooling, cold-producing medium after evaporator enters in reservoir and stores, and can be passed at any time in low pressure recycle bucket and participate in kind of refrigeration cycle.
Wherein, flooded screw machine handpiece Water Chilling Units of the present invention cold-producing medium used is freon.Further, described low pressure recycle bucket setting position, higher than horizontal condenser setting position, makes the cold-producing medium in low pressure recycle bucket enter horizontal condenser under gravity through refrigerant outlet.Flooded screw machine handpiece Water Chilling Units of the present invention changes the traditional feed liquid way of freon refrigeration system, the supply of gravity liquid is adopted to substitute traditional expansion valve air feed refrigeration, thus solve traditional freon adopt expansion valve add distributor cause refrigerator pipes freeze distribute unbalanced problem, horizontal condenser of the present invention can be made to realize complete equipilibrium refrigeration, thus substantially increase freon refrigeration efficiency, and save electric energy.Further, the present invention adopt freon be the flooded screw machine handpiece Water Chilling Units of cold-producing medium compared to ammonia refrigeration handpiece Water Chilling Units, without the need to manual operation, automatically run, security is high, and maintenance cost is low.
The effect of low pressure recycle bucket is after being cooled further by the air-breathing of main frame by the cold-producing medium sent here in reservoir, by the method for gravity supply, be fed to the heat absorption in water condenser, gas after heat absorption is got back to again the import of low pressure recycle bucket and is carried out further gas-liquid separation, gas after separation enters main frame air entry again, ensures that main frame can not fall frost.
Preferably, the difference in height of described low pressure recycle bucket and horizontal condenser is 1.2-2.1 rice.The efficient work of condenser can be guaranteed under this difference in height, make it have the highest heat exchanger effectiveness, also can guarantee refrigerant circulation backflow in time simultaneously, guarantee the normal safe work of main frame.
In addition, the outlet of the machine oil of described oil eliminator connects the machine oil import of main frame, thus enables to be separated by oil eliminator the machine oil obtained and be transmitted back to main frame in time with machine oil in supplementary main frame, guarantees the permanent steady operation of main frame.
In preferred embodiment, the oil sac 700 for storing machine oil is provided with bottom described horizontal condenser, described horizontal condenser connects oil sac oil sac by pipeline, described oil sac is connected to main frame by return line, enter due to the process changing the lower suction of original upper confession in the cold-producing medium in horizontal condenser and be mixed with machine oil, machine oil can under gravity gradually at horizontal condenser bottom deposit, the machine oil of too much deposition can cause horizontal condenser heat exchange efficiency to reduce, therefore, in handpiece Water Chilling Units of the present invention, oil sac is connected by pipeline bottom horizontal condenser, the machine oil deposited in horizontal condenser can import in oil sac by this oil sac, and utilize the return line that oil sac is arranged to lead back in main frame by machine oil, machine oil can be recycled, guarantee the long-term stable operation of handpiece Water Chilling Units, particularly, described return line is provided with jet pump 800, the described jet pump pressure energy of gases at high pressure is converted to speed that kinetic energy makes high pressure draught after nozzle reaches a very high value, region now around fluid is negative pressure state, and low-pressure fluid is introduced and will enter diffusing opening again after two fluids mixing, convert thereof into pressure energy and complete whole ejector action.Concrete, the driven fluid entrance of described jet pump is connected evaporator pipeline and is communicated with oil eliminator, the driving fluid entrance of described jet pump exports with the machine oil of oil sac and is connected, the jet of described jet pump is connected to the refrigerant inlet of main frame, cold-producing medium enters the process of main frame from low pressure recycle bucket, machine oil sucking-off in oil sac, in main frame supply refrigerant process, can be entered into jet pump, the machine oil of sucking-off be entered in main frame together with cold-producing medium and participates in kind of refrigeration cycle by jet pump.
Flooded screw machine handpiece Water Chilling Units of the present invention also comprises control system, described control system is PLC control system, the situation of its monitoring whole system is also according to the work of testing result automatic adjustment system, this control system main control system works, described control system and low pressure recycle bucket simultaneously, the magnetic induction liquid level gauge arranged in the equipment such as reservoir, the connection such as magnetic inducted level switch and floating ball type switch, thus realize the real-time monitoring of system running state, and effectively can regulate system according to feedback data, guarantee that system is in safe and reliable state all the time.
Kind of refrigeration cycle can be sketched and be: after handpiece Water Chilling Units starts, cold-producing medium in reservoir enters into low pressure recycle bucket, and enter into horizontal condenser along pipeline under gravity and carry out heat exchange and become gaseous state, the cold-producing medium completing heat exchange turns back in low pressure recycle bucket, liquid cold-producing medium and the gaseous refrigerant on bucket top is now there is in low pressure recycle bucket, gaseous refrigerant enters into oil eliminator after being drawn into and compressing in main frame, after cold-producing medium is separated by oil eliminator, be passed into cooling in evaporimeter be condensed into liquid state, enter into reservoir subsequently to store and wait to enter next kind of refrigeration cycle, the isolated machine oil of oil eliminator is back to main frame with supplementary machine oil.The machine oil of deposition can be got rid of in time and enters into main frame under the effect of oil sac and jet pump from horizontal condenser in horizontal condenser, thus guarantee that the machine oil in whole unit can remain on a reasonable level always, avoid traditional full-liquid type handpiece Water Chilling Units and cause because machine oil needs constantly to add unit cannot the problem that increases of long-time stable work and operating cost.In kind of refrigeration cycle, do not need traditional pumping into by Action of Gravity Field because cold-producing medium enters into horizontal condenser from low pressure recycle bucket, therefore handpiece Water Chilling Units of the present invention saves energy consumption compared to existing handpiece Water Chilling Units and reduces costs, simultaneously handpiece Water Chilling Units of the present invention makes the evaporimeter in horizontal condenser be in " filling " state by Action of Gravity Field to the mode of horizontal condenser feed flow, its high load capacity work can be made, thus there is high heat exchanger effectiveness, make the refrigeration efficiency of handpiece Water Chilling Units of the present invention far away higher than traditional freon refrigeration system.
Horizontal condenser of the present invention is compared to traditional fluorine horizontal-type evaporator or refrigeration piping accumbency mode, and it accelerates the evaporation rate of freon greatly, improves heat exchanger effectiveness, thus improves refrigeration efficiency, and energy consumption reduces.The feed liquid way of flooded screw machine handpiece Water Chilling Units of the present invention in turn ensure that the requirement that freon is safe and reliable simultaneously.
The invention provides a kind of flooded screw machine handpiece Water Chilling Units, this Systemic absorption ammonia refrigeration is energy-conservation, the feature of good refrigeration effect and freon safe ready, greatly improve the refrigerating efficiency using freon as refrigerant system, comprehensive energy efficiency ratio is obviously promoted, energy consumption significantly reduces, and can realize automatic operating steady in a long-term, avoid existing handpiece Water Chilling Units energy consumption high, maintenance cost is high, and operating cost is with the problem risen steadily running time.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (7)
1. a flooded screw machine handpiece Water Chilling Units, it is characterized in that, comprise main frame, evaporimeter, oil eliminator, low pressure recycle bucket, horizontal condenser and reservoir, the refrigerant outlet of described main frame connects the refrigerant inlet of oil eliminator, the refrigerant outlet of described oil eliminator connects the import of evaporimeter, the outlet of described evaporimeter connects the import of reservoir, described reservoir outlet connects the refrigerant inlet of low pressure recycle bucket, the refrigerant outlet of described low pressure recycle bucket connects the refrigerant inlet of horizontal condenser, the refrigerant outlet of described horizontal condenser is connected with the air inlet of low pressure recycle bucket, the described gas outlet of low pressure recycle bucket is connected with the refrigerant inlet of main frame, refrigerant gas after main frame compression enters into evaporator condensation after oil eliminator is separated, after condensation, cold-producing medium enters into low pressure recycle bucket and flows into horizontal condenser further and absorbs heat, cold-producing medium after heat absorption is got back in low pressure recycle bucket through air inlet from horizontal condenser, and the refrigerator gas in low pressure recycle bucket is entered in main frame by gas outlet and forms next kind of refrigeration cycle.
2. flooded screw machine handpiece Water Chilling Units according to claim 1, is characterized in that, flooded screw machine handpiece Water Chilling Units cold-producing medium used is freon.
3. flooded screw machine handpiece Water Chilling Units according to claim 2, it is characterized in that, described low pressure recycle bucket setting position, higher than horizontal condenser setting position, makes the cold-producing medium in low pressure recycle bucket enter horizontal condenser under gravity through refrigerant outlet.
4. flooded screw machine handpiece Water Chilling Units according to claim 3, is characterized in that, the difference in height of described low pressure recycle bucket and horizontal condenser is 1.2-2.1 rice.
5. flooded screw machine handpiece Water Chilling Units according to claim 2, is characterized in that, the machine oil outlet of described oil eliminator connects the machine oil import of main frame.
6. flooded screw machine handpiece Water Chilling Units according to claim 2, it is characterized in that, the oil sac for storing machine oil is provided with bottom described horizontal condenser, described horizontal condenser connects oil sac oil sac by pipeline, described oil sac is connected to main frame by return line, described return line is provided with jet pump, and the machine oil of described horizontal condenser deposition enters oil sac and makes machine oil enter main frame along return line further by jet pump.
7. flooded screw machine handpiece Water Chilling Units according to claim 6, it is characterized in that, described main frame is set to multiple stage, and the closed circuit of each main frame is in parallel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510743876.XA CN105299941B (en) | 2015-11-05 | 2015-11-05 | A kind of flooded screw machine handpiece Water Chilling Units |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510743876.XA CN105299941B (en) | 2015-11-05 | 2015-11-05 | A kind of flooded screw machine handpiece Water Chilling Units |
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| CN105299941A true CN105299941A (en) | 2016-02-03 |
| CN105299941B CN105299941B (en) | 2017-12-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196796A (en) * | 2016-08-30 | 2016-12-07 | 谭洪德 | A kind of automatic ice-making system |
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| CN1212354A (en) * | 1997-09-19 | 1999-03-31 | 张步健 | Ammonia refrigeration system cyclically-utilizing lubricating oil |
| JP2000074509A (en) * | 1998-08-26 | 2000-03-14 | Mayekawa Mfg Co Ltd | Flooded cooler |
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| 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 |
| 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 |
| CN203810783U (en) * | 2014-03-28 | 2014-09-03 | 乐金空调(山东)有限公司 | Mixed heat recovery water cooling screw rod cold water/heat pump unit |
| CN205119541U (en) * | 2015-11-05 | 2016-03-30 | 谭洪德 | Hydraulic filling formula screw rod machine cooling water set |
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2015
- 2015-11-05 CN CN201510743876.XA patent/CN105299941B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1212354A (en) * | 1997-09-19 | 1999-03-31 | 张步健 | Ammonia refrigeration system cyclically-utilizing lubricating oil |
| JP2000074509A (en) * | 1998-08-26 | 2000-03-14 | Mayekawa Mfg Co Ltd | Flooded cooler |
| WO2008112594A2 (en) * | 2007-03-09 | 2008-09-18 | Johnson Controls Technology Company | Vapor compression 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 |
| 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 |
| CN203810783U (en) * | 2014-03-28 | 2014-09-03 | 乐金空调(山东)有限公司 | Mixed heat recovery water cooling screw rod cold water/heat pump unit |
| CN205119541U (en) * | 2015-11-05 | 2016-03-30 | 谭洪德 | Hydraulic filling formula screw rod machine cooling water set |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196796A (en) * | 2016-08-30 | 2016-12-07 | 谭洪德 | A kind of automatic ice-making system |
| CN106196796B (en) * | 2016-08-30 | 2019-03-05 | 谭洪德 | A kind of automatic ice-making system |
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| CN105299941B (en) | 2017-12-19 |
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