CN110243097A - Machine tool cooling unit and control method thereof - Google Patents
Machine tool cooling unit and control method thereof Download PDFInfo
- Publication number
- CN110243097A CN110243097A CN201910532916.4A CN201910532916A CN110243097A CN 110243097 A CN110243097 A CN 110243097A CN 201910532916 A CN201910532916 A CN 201910532916A CN 110243097 A CN110243097 A CN 110243097A
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- CN
- China
- Prior art keywords
- lathe
- cooling unit
- refrigerant pipeline
- heat
- return piping
- Prior art date
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- 238000001816 cooling Methods 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000003507 refrigerant Substances 0.000 claims abstract description 97
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000002918 waste heat Substances 0.000 claims abstract description 10
- 230000005494 condensation Effects 0.000 claims abstract description 4
- 238000009833 condensation Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 46
- 239000002826 coolant Substances 0.000 claims description 37
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 238000011084 recovery Methods 0.000 abstract 7
- 239000000110 cooling liquid Substances 0.000 abstract 2
- 238000003754 machining Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The application provides a machine tool cooling unit and a control method of the machine tool cooling unit. The machine tool cooling unit comprises a refrigerant system and a cooling system. The refrigerant system comprises a compressor, a condenser, a throttling element, an evaporator, a heat recovery refrigerant pipeline, a heat recoverer and a second water return pipeline. The inlet of the heat recovery refrigerant pipeline is connected with the first refrigerant pipeline, the outlet of the heat recovery refrigerant pipeline is connected with the second refrigerant pipeline, the heat recovery device is arranged on the heat recovery refrigerant pipeline, and the second water return pipeline returns water from the machine tool, passes through the heat recovery device, exchanges heat with the refrigerant in the heat recovery refrigerant pipeline and then flows to the machine tool. By applying the technical scheme of the invention, the cooling liquid in the water return pipeline is heated by using the waste heat of condensation, so that the load can be increased, the machine tool cooling unit can continuously run, the temperature of the cooling liquid can be increased under the condition of low ring temperature, and the use requirement of the machine tool can be met.
Description
Technical field
The present invention relates to technical field of refrigeration equipment, in particular to a kind of cooling unit of lathe and lathe cooler
The control method of group.
Background technique
The cooling unit of lathe be it is a kind of provide the special air-conditioning units equipment of cooling water, cooling oil for lathe, in modern precision plus
Important role is used in work manufacture.The cooling unit of lathe is different from general air-conditioner set, it need very high temperature-controlled precision and
The lasting running ability in low-load is just able to satisfy the Precision Machining demand of various lathes in this way.
The cooling unit of existing lathe generally uses frequency-changeable compressor, can be adjusted according to the load of the cooling unit of lathe
Frequency, to meet the needs of lathe.But how good frequency-changeable compressor no matter is used, the cooling unit of lathe all still has minimum
The limitation of load, when load is in lower situation, the cooling unit of lathe generally requires to shut down, and liquid temperature will rise, and restart
A period of time could establish equalized temperature again, cause water temperature fluctuation larger in this way, be unfavorable for the machining accuracy control of lathe.
On the other hand, when environment temperature is lower than required water temperature, the cooling unit of lathe can not room temperature open, must
It must will set liquid temperature control system and be lower than environment temperature, but thus be unable to satisfy the use demand of lathe, if additional added using electricity
Heat then compares energy consumption.
Summary of the invention
It is existing to solve the embodiment of the invention provides the control method of a kind of cooling unit of lathe and the cooling unit of lathe
The cooling unit of lathe existing the technical issues of lathe use demand is unable to satisfy under low-load and low ambient temperature in technology.
The application embodiment provides a kind of cooling unit of lathe, comprising: coolant system, coolant system include: compression
The exhaust end of machine, condenser, restricting element and evaporator, compressor is connect with condenser by the first refrigerant pipeline, condenser
It is connect with the first refrigerant interface of evaporator by the second refrigerant pipeline, the air-breathing of the second refrigerant interface and compressor of evaporator
End is connected by third refrigerant pipeline, and restricting element is arranged on the second refrigerant pipeline；Cooling system, cooling system include first
Return piping, the first return piping flow to lathe from lathe return water and by evaporator heat exchange again；Lathe cools down unit further include:
Recuperation of heat refrigerant pipeline, the entrance of recuperation of heat refrigerant pipeline are connected with the first refrigerant pipeline, the outlet of recuperation of heat refrigerant pipeline with
Second refrigerant pipeline is connected；Heat regenerator is arranged on recuperation of heat refrigerant pipeline；Second return piping from lathe return water and passes through
The refrigerant heat exchange crossed in heat regenerator and recuperation of heat refrigerant pipeline flows to lathe again.
In one embodiment, lathe is flowed to after the second return piping and the first return piping confluence.
In one embodiment, the cooling unit of lathe further includes liquid case, the second return piping and the first return pipe congruence
It is flow to liquid case, liquid case is used to supply coolant liquid to lathe.
In one embodiment, the cooling unit of lathe further includes water pump, and water pump is connected to the second return piping and first
The river outlet of return piping.
In one embodiment, the outlet of recuperation of heat refrigerant pipeline is upper in the upper of restricting element in the second refrigerant pipeline
Trip.
In one embodiment, the first control valve is provided on recuperation of heat refrigerant pipeline, the first control valve is for controlling
The operation of recuperation of heat refrigerant pipeline.
In one embodiment, it is provided with the second control valve on the second return piping, the second control valve is for controlling the
The operation of two return pipings.
In one embodiment, condenser is air cooled condenser.
Present invention also provides a kind of control method of the cooling unit of lathe, control method is cold for controlling above-mentioned lathe
But unit, control method includes: low-load operational mode, when compressor frequency reaches the first predeterminated frequency value, if flow direction
When the actual temperature of the coolant liquid of lathe is lower than below the first preset temperature value of set temperature, then run recuperation of heat refrigerant pipeline and
Second return piping；When compressor frequency reaches the second predeterminated frequency value, then recuperation of heat refrigerant pipeline and the second return water are closed
Pipeline, the second predeterminated frequency value are greater than the first predeterminated frequency value.
In one embodiment, control method includes waste heat compensation model, under waste heat compensation model: when flowing to lathe
Coolant liquid set temperature be higher than environment temperature when, then run recuperation of heat refrigerant pipeline and the second return piping；When flowing to machine
When the set temperature of the coolant liquid of bed is lower than environment temperature, then recuperation of heat refrigerant pipeline and the second return piping are closed.
In one embodiment, control method includes: when set temperature is higher than environment temperature, if controller judges
It is unable to satisfy the condition for opening the cooling unit of lathe, then set temperature is first set to be lower than the second preset temperature of environment temperature
Value first opens the cooling unit of lathe.
In the above-described embodiments, the coolant liquid in return piping is heated using waste heat of condensation, can both be increased load, be made
Lathe cools down unit continuous running, and can improve coolant temperature in the case where low circumstance temperature, meet the use need of lathe
It asks.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the embodiment of the cooling unit of lathe according to the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, right below with reference to embodiment and attached drawing
The present invention is described in further details.Here, exemplary embodiment and its explanation of the invention is used to explain the present invention, but simultaneously
It is not as a limitation of the invention.
Fig. 1 shows the embodiment of the cooling unit of lathe of the invention, and the cooling unit of the lathe includes coolant system and cold
But system.Wherein, coolant system includes compressor 10, condenser 20, restricting element 30 and evaporator 40, the exhaust of compressor 10
End is connect with condenser 20 by the first refrigerant pipeline 51, and condenser 20 and the first refrigerant interface of evaporator 40 are cold by second
Matchmaker's pipeline 52 connects, and the second refrigerant interface of evaporator 40 is connect with the suction end of compressor 10 by third refrigerant pipeline 53,
Restricting element 30 is arranged on the second refrigerant pipeline 52.Cooling system include the first return piping 61, the first return piping 61 from
Lathe return water simultaneously flows to lathe by the heat exchange of evaporator 40 again.In order to overcome the shortcomings in the prior art, the lathe of the present embodiment
Cooling unit further includes recuperation of heat refrigerant pipeline 54, heat regenerator 70 and the second return piping 62.Recuperation of heat refrigerant pipeline 54
Entrance is connected with the first refrigerant pipeline 51, and the outlet of recuperation of heat refrigerant pipeline 54 is connected with the second refrigerant pipeline 52, heat regenerator
70 are arranged on recuperation of heat refrigerant pipeline 54, and the second return piping 62 is from lathe return water and cold by heat regenerator 70 and recuperation of heat
Refrigerant heat exchange in matchmaker's pipeline 54 flows to lathe again.
In the normal working state, recuperation of heat refrigerant pipeline 54 and the second return piping 62 are closed, refrigerant is from compressor 10
Exhaust end heat release in condenser 20 is entered by the first refrigerant pipeline 51, then by the second refrigerant pipeline 52 by throttling
Element 30 throttles, and enters in evaporator 40, and the first return piping 61 exchanges heat from lathe return water and by evaporator 40, will cool down
Liquid stream is used as cooling to lathe, and the refrigerant flowed out from evaporator 40 returns to the air-breathing of compressor 10 by third refrigerant pipeline 53
End.
In the state that the load of the cooling unit of lathe is inadequate or the temperature of cold-zone also is needed to be higher than environment temperature, operation heat
Refrigerant pipeline 54 and the second return piping 62 are recycled, the part refrigerant compared to normal operation state, in the first refrigerant pipeline 51
Recuperation of heat refrigerant pipeline 54 can be flowed into towards heat regenerator 70, the coolant liquid in the second return piping 62 flow through heat regenerator 70 with
High temperature refrigerant heat exchange in recuperation of heat refrigerant pipeline 54, the coolant liquid in the second return piping 62 supplies lathe, recuperation of heat later
Refrigerant in refrigerant pipeline 54 supplies evaporator 40.In this way, passing through the fortune of recuperation of heat refrigerant pipeline 54 and the second return piping 62
On the one hand row can increase load, keep capable of running well for the cooling unit of lathe, will not shut down, and accuracy of temperature control meets low negative
The requirement of load；On the other hand, it in the lower situation of environment temperature, can be mentioned by the waste heat that compressor 10 generates
Heating load come balance supply lathe coolant liquid temperature, guarantee the machining accuracy of lathe.
Technical solution of the present invention solves the cooling unit of previous lathe under the operating condition of low-load, can shut down and can not essence
Really the problem of control coolant temperature, also solves under low circumstance temperature or demand high coolant temperature in the case where is unable to satisfy machine
It the problem of use demand of bed, does not need additionally to use electric heating, safe ready.
It should be noted that in the inventive solutions, being transported in the first return piping 61 and the second return piping 62
Capable coolant liquid can be cooling water, the oil that can also be cooled down.
As shown in Figure 1, in the technical scheme of this embodiment, after the second return piping 62 and the first return piping 61 confluence
Lathe is flowed to, it is lower cold by the higher coolant liquid of temperature in the second return piping 62 and temperature in the first return piping 61
But liquid mixes, and the coolant liquid for meeting preset temperature is finally obtained, to facilitate the use of lathe.In the second return piping 62 and first
When return piping 61 converges, the aperture of pipeline can be reconciled, so that mixed coolant liquid meets preset temperature value, constant cooling
The temperature of liquid, constant temperature supply lathe and use.More preferably, in the technical scheme of this embodiment, the cooling unit of lathe also wraps
Liquid case 80 is included, the second return piping 62 and the first return piping 61 converge into liquid case 80, and liquid case 80 is used to supply to lathe and cool down
Liquid.The coolant liquid in the second return piping 62 and the first return piping 61 is mixed by liquid case 80, and coolant liquid can be made mixed
That closes is more uniform, while liquid case 80 can store enough constant temperature coolant liquids also in order to lathe use.Optionally, as schemed
Shown in 1, in the technical scheme of this embodiment, the cooling unit of lathe further includes water pump 90, and water pump 90 is connected to the second return pipe
The river outlet of line 62 and the first return piping 61.It in the technical scheme of this embodiment, can be simultaneously to second by water pump 90
Return piping 62 and the first return piping 61 provide the power of coolant liquid circulation.
As another optional embodiment, it also can according to need and use the second return piping 62 and first time respectively
Coolant liquid in water pipeline 61.
As shown in Figure 1, in the technical scheme of this embodiment, the outlet of recuperation of heat refrigerant pipeline 54 is in the second refrigerant pipeline
It is located at the upstream of restricting element 30 on 52, can also allows restricting element 30 to the coolant throttle in the second refrigerant pipeline 52 in this way,
Refrigerant is allowed sufficiently to evaporate in evaporator 40.
Optionally, the first control valve 541 is provided on recuperation of heat refrigerant pipeline 54, it can be with by the first control valve 541
Control the operation of recuperation of heat refrigerant pipeline 54.Optionally, it is provided with the second control valve 621 on the second return piping 62, passes through
Two control valves 621 can control the operation of the second return piping 62.The cooling unit of lathe can be controlled by controller first
Valve 541 and the second control valve 621 are controlled, to realize operation recuperation of heat refrigerant pipeline 54 and the second return piping 62 or close
Close recuperation of heat refrigerant pipeline 54 and the second return piping 62.As more preferably embodiment, the first control valve 541 and second
Control valve 621 can be flow control valve, by the control to flow, may be implemented the load for adjusting the cooling unit of lathe or
To coolant liquid temperature adjustment.As other optional embodiments, the first control valve 541 and the second control valve 621 may be logical
Disconnected valve, it is simple to realize that the on-off control to recuperation of heat refrigerant pipeline 54 and the second return piping 62 is also feasible.
It in the technical scheme of this embodiment, can as others as shown in Figure 1, condenser 20 is air cooled condenser
The condenser of the embodiment of choosing, condenser 20 or other structures.
Preferably, above-mentioned compressor 10 is frequency-changeable compressor.
The present invention also provides a kind of control methods of the cooling unit of lathe, and the control method is for controlling above-mentioned lathe
Cooling unit, control method includes: low-load operational mode, when 10 frequency of compressor reaches the first predeterminated frequency value, if
When flowing to the actual temperature of the coolant liquid of lathe lower than below the first preset temperature value of set temperature, then recuperation of heat refrigerant pipe is run
Line 54 and the second return piping 62；When 10 frequency of compressor reaches the second predeterminated frequency value, then recuperation of heat refrigerant pipeline is closed
54 and second return piping 62, the second predeterminated frequency value be greater than the first predeterminated frequency value.Optionally, the first predeterminated frequency value is pressure
The minimum operating frequency of contracting machine 10, i.e., when the cooling unit of lathe can not be run again with more low-load, if the first return piping
Liquid level in 61 is still lower than set temperature, just runs recuperation of heat refrigerant pipeline 54 and the second return piping 62 increases load, protect
Capable of running well for the cooling unit of lathe is held, the cooling compressor emergency shutdown of lathe is avoided, accuracy of temperature control meets the requirement of low-load.
Optionally, the first preset temperature value can be 1~2 DEG C, if set when the liquid temperature that the first return piping 61 flows to lathe is lower than
When determining 1~2 DEG C of temperature or less, recuperation of heat refrigerant pipeline 54 and the second return piping 62 are run.Optionally, the second predeterminated frequency value
It can be that the above 10Hz of minimum operating frequency is closed that is, when 10 frequency of compressor rises above the above 10Hz of low-limit frequency
Recuperation of heat refrigerant pipeline 54 and the second return piping 62.
Preferably, control method includes waste heat compensation model, under waste heat compensation model: when the coolant liquid for flowing to lathe
When set temperature is higher than environment temperature, then recuperation of heat refrigerant pipeline 54 and the second return piping 62 are run；When flowing to the cold of lathe
But when the set temperature of liquid is lower than environment temperature, then recuperation of heat refrigerant pipeline 54 and the second return piping 62 are closed.It is more highly preferred to
, control method includes when set temperature is higher than environment temperature, if controller judgement, which is unable to satisfy, is opened lathe cooler
The condition of group, then be first set to be lower than the second preset temperature value of environment temperature for set temperature, first opens the cooling unit of lathe.By
In, when set temperature is higher than environment temperature, the cooling unit of lathe is judged by the controller of the cooling unit of lathe and is fail to open,
At this time when controller judgement is unable to satisfy the condition of the cooling unit of lathe of opening, then set temperature is first set to be lower than environment
Two preset temperature value of temperature control, and recuperation of heat refrigerant pipeline 54 and the second return piping 62 are run, so that being eventually fed unit
Coolant liquid can satisfy set temperature.Optionally, the second preset temperature value is 1 DEG C, i.e., when set temperature is set to be lower than environment
At 1 DEG C of temperature, to meet the unlocking condition of the cooling unit of lathe.
It applies the technical scheme of the present invention, the coolant liquid in return piping is heated using waste heat of condensation, can both increase
Load makes the cooling unit continuous running of lathe, and can improve coolant temperature in the case where low circumstance temperature, meet lathe
Use demand.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the embodiment of the present invention can have various modifications and variations.All within the spirits and principles of the present invention, made
Any modification, equivalent substitution, improvement and etc. should all be included in the protection scope of the present invention.
Claims (11)
1. a kind of cooling unit of lathe, comprising:
Coolant system, the coolant system include: compressor (10), condenser (20), restricting element (30) and evaporator (40),
The exhaust end of the compressor (10) is connect with the condenser (20) by the first refrigerant pipeline (51), the condenser (20)
It is connect with the first refrigerant interface of the evaporator (40) by the second refrigerant pipeline (52), the second of the evaporator (40) is cold
Matchmaker's interface is connect with the suction end of the compressor (10) by third refrigerant pipeline (53), and restricting element (30) setting exists
On the second refrigerant pipeline (52)；
Cooling system, the cooling system include the first return piping (61), and first return piping (61) is from lathe return water
And the lathe is flowed to again by the evaporator (40) heat exchange；
It is characterized in that, the cooling unit of the lathe further include:
Recuperation of heat refrigerant pipeline (54), the entrance of the recuperation of heat refrigerant pipeline (54) and the first refrigerant pipeline (51) phase
Even, the outlet of the recuperation of heat refrigerant pipeline (54) is connected with the second refrigerant pipeline (52)；
Heat regenerator (70) is arranged on the recuperation of heat refrigerant pipeline (54)；
Second return piping (62), from the lathe return water and by the heat regenerator (70) and the recuperation of heat refrigerant pipeline
(54) the refrigerant heat exchange in flows to the lathe again.
2. the cooling unit of lathe according to claim 1, which is characterized in that second return piping (62) and described the
The lathe is flowed to after one return piping (61) confluence.
3. the cooling unit of lathe according to claim 2, which is characterized in that the cooling unit of the lathe further includes liquid case
(80), second return piping (62) and first return piping (61) converge into the liquid case (80), the liquid case
(80) for supplying coolant liquid to the lathe.
4. the cooling unit of lathe according to claim 2, which is characterized in that the cooling unit of the lathe further includes water pump
(90), the water pump (90) is connected to the river outlet of second return piping (62) and first return piping (61).
5. the cooling unit of lathe according to claim 1, which is characterized in that the outlet of the recuperation of heat refrigerant pipeline (54)
It is located at the upstream of the restricting element (30) on the second refrigerant pipeline (52).
6. the cooling unit of lathe according to claim 1, which is characterized in that be arranged on the recuperation of heat refrigerant pipeline (54)
Have the first control valve (541), first control valve (541) is used to control the operation of the recuperation of heat refrigerant pipeline (54).
7. the cooling unit of lathe according to claim 1, which is characterized in that be provided on second return piping (62)
Second control valve (621), second control valve (621) are used to control the operation of second return piping (62).
8. the cooling unit of lathe according to claim 1, which is characterized in that the condenser (20) is air-cooled condensation
Device.
9. a kind of control method of the cooling unit of lathe, which is characterized in that the control method is for controlling claim 1 to 8
Any one of described in the cooling unit of lathe, the control method includes:
Low-load operational mode, when the compressor (10) frequency reaches the first predeterminated frequency value, if flowing to the lathe
Coolant liquid actual temperature lower than below the first preset temperature value of set temperature when, then run the recuperation of heat refrigerant pipeline
(54) and second return piping (62)；When the compressor (10) frequency reaches the second predeterminated frequency value, then institute is closed
Recuperation of heat refrigerant pipeline (54) and second return piping (62) are stated, it is default that second predeterminated frequency value is greater than described first
Frequency values.
10. the control method of the cooling unit of lathe according to claim 9, which is characterized in that the control method includes
Waste heat compensation model, under the waste heat compensation model:
When flowing to the set temperature of coolant liquid of the lathe higher than environment temperature, then the recuperation of heat refrigerant pipeline is run
(54) and second return piping (62)；
When flowing to the set temperature of coolant liquid of the lathe lower than environment temperature, then the recuperation of heat refrigerant pipeline is closed
(54) and second return piping (62).
11. the control method of the cooling unit of lathe according to claim 10, which is characterized in that the control method packet
It includes:
When the set temperature is higher than environment temperature, if controller judgement is unable to satisfy the item for opening the cooling unit of lathe
The set temperature is then first set to be lower than second preset temperature value of environment temperature by part, first opens the cooling unit of lathe.
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| CN201910532916.4A CN110243097B (en) | 2019-06-19 | 2019-06-19 | Machine tool cooling unit and control method thereof |
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| CN201910532916.4A CN110243097B (en) | 2019-06-19 | 2019-06-19 | Machine tool cooling unit and control method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111037374A (en) * | 2019-12-31 | 2020-04-21 | 广西玉柴机器股份有限公司 | Overheating prevention method and system for cutting part of high-speed cutter grinding machine tool |
| CN112033182A (en) * | 2020-08-26 | 2020-12-04 | 珠海格力电器股份有限公司 | Shell and tube heat exchanger, unit with heat recovery function and heat recovery control method |
| CN113340014A (en) * | 2021-06-17 | 2021-09-03 | 珠海格力智能装备有限公司 | Cooling system and cooling apparatus |
| CN115042008A (en) * | 2022-06-27 | 2022-09-13 | 南昌沪航工业有限公司 | Closed water storage, pressure maintaining, temperature control and water cooling system of numerical control machine tool |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4850201A (en) * | 1986-04-25 | 1989-07-25 | Advantage Engineering Incorporated | Precision-controlled water chiller |
| US20090201645A1 (en) * | 2008-02-13 | 2009-08-13 | Hitachi Plant Technologies, Ltd. | Cooling system for electronic equipment |
| CN202648237U (en) * | 2012-04-28 | 2013-01-02 | 大连奥德空调设备有限公司 | Total heat recovery type water chilling unit for villa |
| CN104315739A (en) * | 2014-10-17 | 2015-01-28 | 合肥天鹅制冷科技有限公司 | Liquid cooling machine with double condensation and double heat dissipation |
| CN105783331A (en) * | 2016-05-10 | 2016-07-20 | 合肥天鹅制冷科技有限公司 | Heat efficient recovery device for air source water chilling unit |
| CN107560207A (en) * | 2017-08-15 | 2018-01-09 | 珠海格力电器股份有限公司 | Screw type water chilling unit and control method thereof |
| CN210197765U (en) * | 2019-06-19 | 2020-03-27 | 珠海格力电器股份有限公司 | Machine tool cooling unit |
-
2019
- 2019-06-19 CN CN201910532916.4A patent/CN110243097B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4850201A (en) * | 1986-04-25 | 1989-07-25 | Advantage Engineering Incorporated | Precision-controlled water chiller |
| US20090201645A1 (en) * | 2008-02-13 | 2009-08-13 | Hitachi Plant Technologies, Ltd. | Cooling system for electronic equipment |
| CN202648237U (en) * | 2012-04-28 | 2013-01-02 | 大连奥德空调设备有限公司 | Total heat recovery type water chilling unit for villa |
| CN104315739A (en) * | 2014-10-17 | 2015-01-28 | 合肥天鹅制冷科技有限公司 | Liquid cooling machine with double condensation and double heat dissipation |
| CN105783331A (en) * | 2016-05-10 | 2016-07-20 | 合肥天鹅制冷科技有限公司 | Heat efficient recovery device for air source water chilling unit |
| CN107560207A (en) * | 2017-08-15 | 2018-01-09 | 珠海格力电器股份有限公司 | Screw type water chilling unit and control method thereof |
| CN210197765U (en) * | 2019-06-19 | 2020-03-27 | 珠海格力电器股份有限公司 | Machine tool cooling unit |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111037374A (en) * | 2019-12-31 | 2020-04-21 | 广西玉柴机器股份有限公司 | Overheating prevention method and system for cutting part of high-speed cutter grinding machine tool |
| CN112033182A (en) * | 2020-08-26 | 2020-12-04 | 珠海格力电器股份有限公司 | Shell and tube heat exchanger, unit with heat recovery function and heat recovery control method |
| CN113340014A (en) * | 2021-06-17 | 2021-09-03 | 珠海格力智能装备有限公司 | Cooling system and cooling apparatus |
| CN115042008A (en) * | 2022-06-27 | 2022-09-13 | 南昌沪航工业有限公司 | Closed water storage, pressure maintaining, temperature control and water cooling system of numerical control machine tool |
| CN115042008B (en) * | 2022-06-27 | 2023-12-01 | 南昌沪航工业有限公司 | Closed water storage pressure maintaining temperature control water cooling system of numerical control machine tool |
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