CN109964037A - Screw compressor system for commercial vehicle - Google Patents

Screw compressor system for commercial vehicle Download PDF

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Publication number
CN109964037A
CN109964037A CN201780070183.6A CN201780070183A CN109964037A CN 109964037 A CN109964037 A CN 109964037A CN 201780070183 A CN201780070183 A CN 201780070183A CN 109964037 A CN109964037 A CN 109964037A
Authority
CN
China
Prior art keywords
screw compressor
control unit
closed loop
loop control
open loop
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201780070183.6A
Other languages
Chinese (zh)
Other versions
CN109964037B (en
Inventor
G·埃布拉尔
J-B·马雷斯科
J·梅拉尔
T·魏因霍尔德
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Original Assignee
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH filed Critical Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Publication of CN109964037A publication Critical patent/CN109964037A/en
Application granted granted Critical
Publication of CN109964037B publication Critical patent/CN109964037B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/14Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C18/16Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00Arrangement or mounting of control or safety devices
    • F25B49/02Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022Compressor control arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/08Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the rotational speed
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/28Safety arrangements; Monitoring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00Compression machines, plants or systems with non-reversible cycle
    • F25B1/04Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
    • F25B1/047Compression machines, plants or systems with non-reversible cycle with compressor of rotary type of screw type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00Components
    • F04C2240/80Other components
    • F04C2240/81Sensor, e.g. electronic sensor for control or monitoring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2270/00Control; Monitoring or safety arrangements
    • F04C2270/05Speed
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2270/00Control; Monitoring or safety arrangements
    • F04C2270/19Temperature
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00Problems to be solved
    • F25B2500/26Problems to be solved characterised by the startup of the refrigeration cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00Control issues
    • F25B2600/02Compressor control
    • F25B2600/025Compressor control by controlling speed
    • F25B2600/0253Compressor control by controlling speed with variable speed
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21Temperatures
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21Temperatures
    • F25B2700/2105Oil temperatures
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21Temperatures
    • F25B2700/2115Temperatures of a compressor or the drive means therefor
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The screw compressor system (100) that the present invention relates to a kind of for commercial vehicle, with at least one screw compressor (10), at least one screw compressor driver, at least one temperature sensor (38) and at least one open loop and/or Closed Loop Control Unit (110), wherein, the open loop and/or Closed Loop Control Unit (110) are connect with the screw compressor driver and the temperature sensor (38), wherein, the open loop and/or Closed Loop Control Unit (110) are realized and are configured to, so that the open loop and/or Closed Loop Control Unit manipulate the screw compressor driver according to from the temperature threshold signal that the temperature sensor (38) obtains in terms of the revolving speed of the screw compressor driver.

Description

Screw compressor system for commercial vehicle
Technical field
The present invention relates to a kind of screw compressor system for commercial vehicle, which has at least One screw compressor, the screw compressor have open loop and/or close-loop driven for the screw compressor At least one open loop of control and/or Closed Loop Control Unit.
Background technique
It is known from the state of the art the screw compressor for commercial vehicle.This screw compressor is for being, for example, commercialization The braking system of vehicle provides necessary compressed air.
In this regard, it is known that the compressor of oil is especially filled, especially it is also known that screw compressor, in these compressions There is the adjusting oil temperature of the task in machine.This is usually realized by the way that external oil cooler is arranged in, the oil cooler and filling The compressor of oil is connected with oil return line via thermostatic valve.Oil cooler is that there are two the heat exchanges in circuit separated from each other for tool herein Device, wherein fluid, i.e. compressor oil of the first circuit setting for heat, and second servo loop is arranged for cooling down liquid.Such as it can Using use air, with antifreezing agent or other oil aqueous mixtures as cool down liquid.
Then, which must connect with compressor oil circuit via pipe fitting or hose and must assure that oil return line It does not leak.
In addition, the volume of the outside must be filled oil, to also increase oily total amount.Therefore system inertia is increased. In addition, oil cooler must mechanically be arranged and fix or by be located at surrounding holding meanss otherwise by separated guarantor Device is held to be arranged and fix, this needs additional fixed mechanism, and is also required to structure space.
A kind of screw compressor for being integrated with oil cooler as known to US 4,780,061.
In addition, 37 17 493 A1 of DE discloses a kind of screw-compression machine equipment being arranged in compact shell, There is oil cooler on the electric notor of screw compressor.
Such screw compressor is for example via known to 10 2,004 060 417 B4 of DE.
Summary of the invention
The task of the present invention is, further construction starts the screw compressor system for referring to type in an advantageous manner, In particular so that the open loop and/or close-loop driven control of screw compressor simplifiedly and can be constructed reliably.
The screw compressor system for commercial vehicle that the task passes through the feature with claim 1 according to the present invention To solve.It provides according to this, a kind of screw compressor system for commercial vehicle has at least one screw compressor, at least One screw compressor driver, at least one temperature sensor and at least one open loop and/or Closed Loop Control Unit, In, the open loop and/or Closed Loop Control Unit are connect with the screw compressor driver and the temperature sensor, In, the open loop and/or Closed Loop Control Unit are designed and are configured in this way, so that open loop and/or Closed Loop Control Unit are according to from temperature The temperature threshold signal that degree sensor obtains manipulates screw compressor drive in terms of the revolving speed of screw compressor driver Dynamic device.
The present invention is based on following basic conceptions: the temperature management of screw compressor system can be real in the following way It is existing, i.e., screw compressor driver is correspondingly manipulated according to the temperature in screw compressor.Screw compressor Temperature is also fatefully influenced by the revolving speed of screw compressor driver.It, can be by suitable if reaching certain temperature Revolving speed with screw compressor driver correspondingly improves or reduces temperature.Especially it can be stated that the screw Compressor assembly is constituted relative to the earth, certain causes temperature to generate based on the oil mass present in screw compressor The inertia of variation.It is also recognized that it is related to a kind of screw compressor system, it is small generally directed to operation at part load or load It runs to design and need not continue to run in full load operation.
Such as it can be stated that the open loop and/or Closed Loop Control Unit are the composition portions of the screw compressor system Point.Thus it constitutes compact structure and external component need not be used.
But in principle it is also recognized that the open loop and/or Closed Loop Control Unit are the groups of the air treatment system of commercial vehicle At part.Corresponding control unit is had existed herein, which can simply be used collectively.
It is also recognized that the open loop and/or Closed Loop Control Unit are the engine control section or vehicle control section of commercial vehicle Component part.It also can be realized the already existing component using commercial vehicle herein.
But in principle it is also recognized that the open loop and/or Closed Loop Control Unit are configured to individual open loop and/or closed loop control Unit processed.This for example can be realized simple assembly and simple replacement or simple upgrading.
Furthermore it can be stated that the open loop and/or Closed Loop Control Unit are designed and configured in this way so that the open loop and/or Closed Loop Control Unit cuts off spiral shell when obtaining and showing in screw compressor more than the temperature threshold signal of predetermined temperature threshold Rod-type compressor drive.Therefore the temperature in screw compressor can be simply and efficiently realized within the very short time Degree reduces.In the case that by cut off screw compressor driver realize do not run screw compressor, will not be more Other heat is caused to increase, in screw compressor so as to the cooling screw compressor.
Additionally, it is contemplated that the open loop and/or Closed Loop Control Unit are achieved and configure, so that the open loop and/or closing Ring control unit only can be when its acquisition shows to be lower than the temperature threshold signal of predetermined temperature threshold in screw compressor Just realize the connection of screw compressor driver.In principle, show in screw compressor lower than predetermined temperature threshold The cutting so as to triggering screw compressor driver that temperature threshold signal is different from open loop and/or Closed Loop Control Unit obtains Temperature threshold signal.But these temperature threshold signals are also possible to identical.By preventing screw pressure when the temperature is excessively high Contracting machine is started or is started again, equally can be realized simply but reliably simultaneously opened loop control or closed-loop control screw-compression Temperature in machine system or in screw compressor.
It can be stated that the screw compressor system does not have thermostatic valve.In principle it is also recognized that being based on the open loop And/or the temperature management for being configured to effectively run screw compressor in this way of Closed Loop Control Unit, so that be not required at all Heat is wanted relatively to access the oil cooling loop usually with thermostatic valve.Therefore the component of screw compressor system can save It goes.
In principle furthermore also it can be stated that the screw compressor system, which does not have, is used for oil cooled heat exchanger. By saving the relatively expensive component, the structure of screw compressor system can be simplified on the whole.
Detailed description of the invention
Other details and advantage of the invention should be explained in more detail by the embodiment being shown in the accompanying drawings now.Its In:
Fig. 1 shows the schematic cross sectional views of screw compressor according to the invention;And
Fig. 2 shows the schematic diagrames of screw compressor system according to the invention.
Specific embodiment
Fig. 1 shows the schematic cross sectional views of the screw compressor 10 in the embodiment of the present invention meaning.
Screw compressor 10 has for screw compressor 10 to be mechanically fixed against the electricity not being shown specifically here Fixed flange 12 on motor.
However input shaft 14 is shown, the torque of electric notor is transferred to one of two screw rods 16,18, i.e. via the input shaft On screw rod 16.
Screw rod 18 engages with screw rod 16 and via the screw drive.
Screw compressor 10 has shell 20, and the main component of screw compressor 10 is arranged in the shell.
Shell 20 is filled oil 22.
In air input side, it is equipped on the shell 20 of screw compressor 10 and enters adapter tube 24.Herein into adapter tube 24 It constitutes in this way, so that being disposed with air filter 26 on it.In addition, radially entering on adapter tube 24 to enter equipped with air in air Mouth 28.
Bullet is equipped in entering adapter tube 24 and the region entered between the position where adapter tube 24 is arranged on the housing 20 The valve seat 30 of spring load, the valve seat are configured to axial seal herein.
The valve seat 30 is used as check-valves.
It is equipped with air delivery passage 32 in 30 downstream of valve seat, which delivers the air to described two screw rods 16、18。
The air discharge duct part 34 with riser culverts 36 is equipped in the outlet side of described two screw rods 16,18.
It is equipped with temperature sensor 38 in the terminal area of riser culverts 36, oil temperature can be monitored by the temperature sensor.
In addition, being equipped with the holder 40 for air oil strain element 42 in air discharge domain.
Holder 40 for air oil strain element is in the assembled condition in the region (also as shown in Figure 1) towards bottom With air oil strain element 42.
In addition, it is equipped with corresponding strainer or known filtering and oil separating device 44 in the inside of air oil strain element 42, It is not illustrated in detail.
In intermediate upper area, it gets out the state (that is, as shown in Figure 1) of operation with reference to the sum assembled, is used for The holder 40 of air oil strain element has air outlet opening 46, which passes to check-valves 48 and minimum pressure Valve 50.Check-valves 48 and minimum pressure valve 50 also may be constructed in a common combined valve.
And then check-valves 48 is equipped with air outlet slit 51.
Air outlet slit 51 is usually connect with corresponding known compressed air customer.
In order to lead back oil 22 that is in air oil strain element 42 and separating in the air oil strain element again Into shell 20, riser culverts 52 are equipped with, which exists in the output end of the holder 40 for air oil strain element 42 Being transitioned at shell 20 has strainer valve and check-valves 54.
In 54 downstream of strainer valve and check-valves, nozzle 56 is equipped in housing bore.Oil return line 58 back passes to screw rod 16 Or the substantially intermediate region of screw rod 18, to lead back oil 22 again to the screw rod.
Purge cock 59 is equipped in the bottom section in assembled state of shell 20.It can be with via the purge cock 59 It opens and drains the oil opening accordingly, oily 22 openings that can drain the oil via this are released.
There is also attachment 60 in the lower zone of shell 20, oil strainer 62 is fixed in the attachment.Oil 22 is first First enter channel 64 via the oil strainer of arrangement within the casing 20 and is directed to thermostatic valve 66.
Replace thermostatic valve 66 that can also be equipped with open loop and/or closed-loop control device, is filled by the open loop and/or closed-loop control It sets the oil temperature that can monitor the oil 22 in shell 20 and the oil temperature can be set to desired value.
Then, in the oil-in that 66 downstream of thermostatic valve is oil strainer 62, which leads back pipeline 68 via intermediate It leads back oil 22 again to screw rod 18 or screw rod 16, but also leads back to the bearing 70 by oil lubrication of axis 14.In the area of bearing 70 Nozzle 72 also is provided in domain, the nozzle within the casing 20 with lead back pipeline 68 and be arranged in association.
Cooler 74 is connected in attachment 60, as elaborated in Fig. 2 to 4 further below.
(referring to assembled state) in the upper area of shell 20, there are safety valves 76, can reduce via the safety valve Excessive pressure in shell 20.
In 50 upstream of minimum pressure valve there are bypass line 78, which passes to pressure reducing valve 80.Via by with sky Pressure reducing valve 80 for connecting to be steered of gas delivery section 32, air can back into the region of air intake 28.In the area It can be equipped with the exhaust valve not being shown specifically in domain and or be equipped with nozzle (reduced diameter portion of transfer pipeline point).
In addition, fuel level sensor 82 can be equipped in the outer wall of shell 20 substantially in the height of pipeline 34.The oil level Sensor 82 for example can be optical sensor and be achieved and be arranged, and make it possible to identify by sensor signal, Oil level is on fuel level sensor 82 in operation or fuel level sensor 82 is exposed and thus oil level correspondingly drops It is low.
It can also be equipped with alarm unit in association with the monitoring, which disappears corresponding failure message or warning Breath output or the user for passing to system.
The function of screw compressor 10 shown in FIG. 1 is as follows herein:
Air via air intake 28 input and via check-valves 30 reach screw rod 16,18, air the screw rod that In compressed.Compressed gas mixture is directly blown on temperature sensor 38, and the gas mixture is between 5 to 16 times Coefficient after screw rod 16 and 18 by compressively pass through discharge line 34 via rise pipe fitting 36 risen.
Still part have oil particles air then be directed into air oil strain element 42 via holder 40 and It is entered as long as having reached corresponding minimum pressure in air discharge duct road 51.
Oil 22 in shell 20 is maintained at operation temperature via oil strainer 62 and when necessary via heat exchanger 74 Degree.
If you do not need to it is cooling, then it does not use and does not access heat exchanger 74 yet.
Corresponding access is realized via thermostatic valve 68.After purifying in oil strainer 64, oil is conveyed via pipeline 68 To screw rod 18 or screw rod 16, but also it is delivered to bearing 72.Oil 22 is supplied via pipeline 52,58 is led back in screw rod 16 or screw rod 18, Here, the purification of oil 22 is realized in air oil strain element 42.
Drive the screw rod 16 and 18 of screw compressor 10 via the electric notor not being shown specifically, the electric notor is by its turn The screw rod 16 that square is transmitted to via axis 14 and engages with axis 18.
Ensure for example exist in the outlet side of screw rod 16,18 under operation via the pressure reducing valve 80 not being shown specifically High pressure will not be stranded lock in the region of transfer pipeline 32, but especially in compressor start in the region of transfer pipeline 32 In there is low input pressure, especially atmospheric pressure always.Otherwise, as the starting of compressor will be first in screw rod 16 and 18 Outlet side there are very high pressure, which will be so that overloads by drive motor.
Fig. 2 is to illustrate to illustrate the screw compressor according to the invention with screw compressor 10 shown in FIG. 1 System 100.
Furthermore screw compressor system 100 has open loop and/or Closed Loop Control Unit 110, the open loop and/or closed loop control (electric notor not being shown specifically, should for the driver of the screw rod 16 and 18 of unit processed and temperature sensor 38 and screw compressor Its torque is transferred to input shaft 14 by electric notor) connection.
Open loop and Closed Loop Control Unit 110 are configured to the component part of screw compressor 10 herein.
But in principle also it can be stated that open loop and Closed Loop Control Unit 110 are configured to the sky of commercial vehicle not being shown specifically The component part of gas processing system, the component part of the engine control section of commercial vehicle or vehicle control section or individual open loop and Closed Loop Control Unit 110.
Open loop and/or Closed Loop Control Unit 110 are achieved and configure, so that its basis was obtained from temperature sensor 38 Temperature threshold signal manipulates the screw compressor driver in terms of the revolving speed of screw compressor driver.
Especially provide herein, open loop and Closed Loop Control Unit 110 show in acquisition be more than in screw compressor 10 Screw compressor driver is cut off when the temperature threshold signal of predetermined temperature threshold.
When the temperature threshold signal for showing to be lower than in screw compressor 10 predetermined temperature threshold of temperature sensor 38 It can be realized when being transferred to open loop and Closed Loop Control Unit 110 and start screw compressor again.
Temperature threshold for turning on and off screw compressor 10 preferably selects in the same manner herein, so as to realize It is simple to execute.
But in principle also it can be stated that different threshold values is arranged thus.
Temperature threshold can for example be selected when being greater than normal working temperature about 10% to 30%.
It is configured to realize by shown in figure 2, screw compressor system 100 or screw compressor 10 need not There need not be heat exchanger 74 again with thermostat valve 66 and also again.
Reference signs list
10 screw compressors
12 fixed flanges
14 input shafts
16 screw rods
18 screw rods
20 shells
22 oil
24 enter adapter tube
26 air filters
28 air intakes
30 valve seats
32 air delivery passages
34 air discharge duct parts
36 riser culverts
38 temperature sensors
40 are used for the holder of air oil strain element
42 air oil strain elements
44 strainers or known filtering and oil separating device
46 air outlet openings
48 check-valves
50 minimum pressure valves
51 air outlet slits
52 riser culverts
54 strainer valves and check-valves
56 nozzles
58 oil return lines
59 purge cocks
60 attachments
60a outer ring
60b inner ring
62 oil strainers
64 oil strainers enter channel
66 thermostatic valves
68 lead back pipeline
70 bearings
72 nozzles
74 coolers, heat exchanger
76 safety valves
78 bypass lines
80 relief valves
82 fuel level sensors
100 screw compressor systems
110 open loops and/or Closed Loop Control Unit

Claims (9)

1. a kind of screw compressor system (100) for commercial vehicle, at least one screw compressor (10), at least One screw compressor driver, at least one temperature sensor (38) and at least one open loop and/or Closed Loop Control Unit (110), wherein the open loop and/or Closed Loop Control Unit (110) and the screw compressor driver and the temperature pass Sensor (38) connection, wherein the open loop and/or Closed Loop Control Unit (110) are designed and configured to so that the open loop and/ Or Closed Loop Control Unit drives according to the temperature threshold signal obtained from the temperature sensor (38) in the screw compressor The screw compressor driver is manipulated in terms of the revolving speed of dynamic device.
2. screw compressor system (100) according to claim 1, which is characterized in that the open loop and/or closed loop control Unit (110) processed is the component part of the screw compressor (10).
3. screw compressor system (100) according to claim 1, which is characterized in that the open loop and/or closed loop control Unit (110) processed is the component part of the air treatment system of commercial vehicle.
4. screw compressor system (100) according to claim 1, which is characterized in that the open loop and/or closed loop control Unit (110) processed is the engine control section of commercial vehicle or the component part of vehicle control section.
5. screw compressor system (100) according to claim 1, which is characterized in that the open loop and/or closed loop control Unit (110) processed is configured to individual open loop and/or Closed Loop Control Unit (110).
6. screw compressor system (100) according to any one of the preceding claims, which is characterized in that the open loop And/or Closed Loop Control Unit (110) is realized and is configured to, so that the open loop and/or Closed Loop Control Unit show in acquisition in institute It states and cuts off screw compressor driver when in screw compressor (10) being more than the temperature threshold signal of predetermined temperature threshold.
7. screw compressor system (100) according to any one of the preceding claims, which is characterized in that the open loop And/or Closed Loop Control Unit (110) is realized and is configured to, so that the open loop and/or Closed Loop Control Unit only can be in the open loops And/or Closed Loop Control Unit obtains and shows to believe in the screw compressor (10) lower than the temperature threshold of predetermined temperature threshold Number when just realize screw compressor driver connection.
8. screw compressor system (100) according to any one of the preceding claims, which is characterized in that the screw rod Formula compressor assembly (100) does not have thermostatic valve (66).
9. screw compressor system (100) according to any one of the preceding claims, which is characterized in that the screw rod Formula compressor assembly (100), which does not have, is used for oil cooled heat exchanger (74).
CN201780070183.6A 2016-09-21 2017-09-19 Screw compressor system for a commercial vehicle Expired - Fee Related CN109964037B (en)

Applications Claiming Priority (3)

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CN114183952A (en) * 2021-12-21 2022-03-15 宁波奥克斯电气股份有限公司 Refrigerant recovery control method and device and refrigerant recovery unit
CN114183952B (en) * 2021-12-21 2023-09-15 宁波奥克斯电气股份有限公司 Refrigerant recovery control method and refrigerant recovery unit

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US20190376517A1 (en) 2019-12-12
JP6896083B2 (en) 2021-06-30
BR112019005118A2 (en) 2019-06-04
KR20190047725A (en) 2019-05-08
CN109964037B (en) 2022-03-29
EP3516225A1 (en) 2019-07-31
JP2019536943A (en) 2019-12-19
DE102016011508A1 (en) 2018-03-22

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