CN106949036B - A kind of auxiliary oil-free air compressor device - Google Patents
A kind of auxiliary oil-free air compressor device Download PDFInfo
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- CN106949036B CN106949036B CN201710324089.0A CN201710324089A CN106949036B CN 106949036 B CN106949036 B CN 106949036B CN 201710324089 A CN201710324089 A CN 201710324089A CN 106949036 B CN106949036 B CN 106949036B
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- Prior art keywords
- air compressor
- free air
- contactor
- branch road
- normally
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/08—Regulating by delivery pressure
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
A kind of auxiliary oil-free air compressor device, including motor, oil-free air compressor, drop separator, air filter, check valve, branch road pipe, the time relay, contactor and hot protective relay, the gas outlet of branch road pipe connects cylinder, pressure switch is installed on the pipe of branch road, the circuit of the first normally-closed contact series connection turn-on time relay of pressure switch, second normally-closed contact of pressure switch, the circuit of the first normally opened contact series connection access contactor of the normally opened contact and time relay of hot protective relay, the third normally-closed contact of pressure switch is in series with detection tabs, for detecting the state of pressure switch；The circuit of the included temperature switch series connection access hot protective relay of the second normally opened contact and motor of the time relay；The circuit of the first normally opened contact series connection access motor of contactor, the second normally opened contact of contactor is in series with detection tabs, for detecting motor operational situation.
Description
Technical field
The present invention relates to auxiliary oil-free air compressor devices, compress more particularly to auxiliary air used for rail vehicle
Machine.
Background technique
Often total wind is insufficient when carrying out operation and preparing for air-boost compressor used for rail vehicle, at this moment needs using auxiliary
The in due course supplement wind pressure of air compressor.The air-boost compressor used for rail vehicle of either low speed or high speed before this is all
It is the larger and complicated system of a set of volume, which is unable to further satisfaction rail vehicle integrated level height, multi-functional requirement.
However as the marketization of rail vehicle, domestic existing air-boost compressor be not able to satisfy client it is multi-functional and
The requirement of the marketization, it would be highly desirable to design a kind of full-featured, compact, mature and reliable for being adapted to the requirement of client's multifunction
Auxiliary oil-free air compressor device.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the disadvantages mentioned above of the prior art, provide a kind of assist with oil-free
Blowing plant.
In order to solve the above technical problems, auxiliary oil-free air compressor device provided by the invention, it is characterised in that:
It is managed including sequentially connected oil-free air compressor, drop separator, air filter, check valve and branch road, branch road pipe goes out
Port connects cylinder, is equipped with pressure switch, safety valve and pressure gauge on the pipe of branch road, the oil-free air compressor is driven by motor
It is dynamic；Described device also has the time relay, contactor and hot protective relay, and there are three normally closed touchings for the pressure switch tool
Point, the time relay and contactor are respectively provided with two normally opened contacts, and hot protective relay has a normally opened contact, and pressure is opened
The circuit of the first normally-closed contact series connection turn-on time relay closed, the second normally-closed contact, the hot protective relay of pressure switch
Normally opened contact and the time relay the first normally opened contact series connection access contactor circuit, the normally closed touching of the third of pressure switch
Point is in series with detection tabs, for detecting the state of pressure switch；What the second normally opened contact and motor of the time relay carried
The circuit of temperature switch series connection access hot protective relay；The circuit of the first normally opened contact series connection access motor of contactor, connects
Second normally opened contact of tentaculum is in series with detection tabs, for detecting motor operational situation.
In order to further solve above-mentioned technical problem, this auxiliary also has following improvement with oil-free air compressor:
1, the compressed air delivery outlet of the oil-free air compressor passes through the air inlet of piping connection drop separator.
2, the check valve both ends pass through the gas outlet of piping connection drop separator and the air inlet of branch road pipe respectively.
3, there is air flue, pressure switch, safety valve, the air inlet of pressure gauge and the air flue in the pipe of branch road in the branch road pipe
Connection.
4, also there is rack and control cabinet, the oil-free air compressor, drop separator, air filter, check valve
It is fixed on the rack with branch road pipe, the time relay, contactor, hot protective relay are mounted in control cabinet.
5, the control cabinet is fixed on the rack.
6, the contactor is parallel with overvoltage protection resistance.
When (cylinder) wind pressure is lower than the starting pressure value that pressure switch is set in the pipe of branch road, oil-free air compressor is assisted
Just work and air feed are automatically begun to, is just automatically stopped work after the stopping pressure value that wind pressure is greater than pressure switch setting.It is first
First compressor generates compressed air, purifies after copper pipe is cooling through drop separator and air filter, enters after check valve
Cylinder.Wherein there is check valve between branch road pipe and air filter, prevents subsequent compression air return.Total wind wind pressure reaches pressure
Oil-free air compressor power supply, and the off-load carried by oil-free air compressor are disconnected after the stopping pressure value of power switch setting
Valve exhausts the compressed air between oil-free air compressor and check valve, realizes oil-free air compressor non-loaded starting next time,
And the signal for monitoring insufficient pressure all the way is independently exported by pressure switch.
In a kind of control cabinet of above-mentioned auxiliary oil-free air compressor, be integrated with control oil-free air compressor when
Between relay, for setting oil-free air compressor longest stream time.If stream time is more than the time of setting,
Disconnect control electric motor starting contactor power supply.And the signal of monitoring motor operating all the way is independently exported by contactor.
It is integrated with temperature switch in motor, hot protective relay is controlled by this temperature switch, to control oil-free air
Compressor operating.Motor power is disconnected after motor is more than the setting value of temperature switch, to achieve the purpose that protect motor, so that
The service life is longer for oil-free air compressor.
In a kind of above-mentioned auxiliary oil-free air compressor, the drop separator and air filter used all has certainly
Dynamic drain function, after compressed air is cooling by copper pipe, when being precipitated and be deposited in drop separator and air filter, one
The work of denier compressor starts, the water being stored in drop separator and air filter will be automatically drained out, and guarantee gas circuit cleaning.
In a kind of above-mentioned auxiliary oil-free air compressor, the pressure gauge being mounted on the pipe of branch road can be very easily
Observe same atmospheric pressure value.The mechanical safety valve being mounted on the pipe of branch road communicates therewith component on pipeline for guaranteeing
Highest air pressure.
In a kind of above-mentioned auxiliary oil-free air compressor, being mounted on to have in the pressure switch on the pipe of branch road be can control
The switch whether inner contact of pressure switch works.It can be disconnected still by this switch after assisting oil-free air compressor to be powered
Power resumption, this switch facilitate field adjustable of the auxiliary oil-free air compressor on vehicle.
Detailed description of the invention
The present invention will be further described below with reference to the drawings.
Fig. 1 is the mechanical part schematic diagram of auxiliary oil-free air compressor device of the present invention.
Fig. 2 is the control circuit schematic diagram of auxiliary oil-free air compressor device of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.
The present embodiment auxiliary oil-free air compressor device, is made of mechanical part and electric control part.Mechanical part is such as
Shown in Fig. 1, electric control part is as shown in Figure 2.
Mechanical part includes sequentially connected oil-free air compressor 1, drop separator 3, air filter 4, check valve 5
With branch road pipe 8, the gas outlet of branch road pipe 8 connects cylinder, is equipped with pressure switch KA1, safety valve 7 and pressure gauge on branch road pipe 8
6, oil-free air compressor 1 is driven by motor M.The compressed air delivery outlet of oil-free air compressor 1 is connected by cooling copper tube 2
The air inlet of drop separator 3；Check valve 5 both ends pass through gas outlet and the branch road pipe 8 of piping connection drop separator 4 respectively
Air inlet.There is air flue, pressure switch KA1, safety valve 7, the air inlet of pressure gauge 6 and the air flue in branch road pipe 8 in the pipe of branch road
Connection.Safety valve 7 can be laid down when air pressure is excessive a part for pressure, to maintain system material object stable and peace
Entirely.
Electric control part device includes: pressure switch KA1, time relay KT1, contactor KM1 and hot protective relay
KD1, contactor KM1 are parallel with overvoltage protection resistance VDR, and there are three normally-closed contact, time relay KT1 for pressure switch KA1 tool
Two normally opened contacts are respectively provided with contactor KM1, hot protective relay KD1 has a normally opened contact, pressure switch KA1's
The circuit of first normally-closed contact series connection turn-on time relay KT1, the second normally-closed contact of pressure switch KA1, Thermal protection relay
The circuit of the first normally opened contact series connection access contactor KM1 of the normally opened contact and time relay KT1 of device KD1, pressure switch
The third normally-closed contact of KA1 is in series with detection tabs, and for the status signal of external output pressure switch, branch road is managed for identification
Whether (cylinder) interior air pressure reaches specified pressure；The included temperature switch of the second normally opened contact and motor of time relay KT1
The circuit of KB1 series connection access hot protective relay KD1；The power supply of the first normally opened contact series connection access motor M of contactor KM1 returns
Road；The second normally opened contact of contactor KM1 is in series with detection tabs, is used for output motor CRANK PULSES.
Above-mentioned mechanical part (oil-free air compressor, drop separator, air filter, check valve and branch road pipe) installation
On the rack, electric control part (time relay, contactor, hot protective relay) is then mounted in control cabinet, the control cabinet
It is fixed on the rack.
The present embodiment assists oil-free air compressor device working principle as follows.
When the starting pressure value of interface wind pressure (branch road manage-style pressure) lower than pressure switch setting, start motor:
Three normally-closed contacts of pressure switch KA1 are closed, and time relay KT1 obtains electric, and the time relay starts timing, together
When time relay KT1 two normally opened contacts closure, hot protective relay KD1 obtain it is electric (assuming that motor M is not overheated at this time, temperature
Spend switch KB1 closure), the normally opened contact closure of hot protective relay KD1, the circuit of contactor KM1 is connected at this time, contactor
KM1 obtains electric, two normally opened contact closure, and connection motor power circuit makes motor devote oneself to work.
When interface wind pressure (branch road manage-style pressure) reaches the stopping pressure value of pressure switch setting, stop motor work:
Three normally-closed contacts of pressure switch KA1 disconnect, contactor KM1 power loss, and two normally opened contacts of contactor KM1 are disconnected
It opens, motor power circuit disconnects, and leaves the motor off work.And oil-free sky is exhausted by the unloading valve that oil-free air compressor carries
Compressed air between air compressor and check valve realizes oil-free air compressor non-loaded starting next time.
Motor reaches longest stream time, stops motor work:
When motor reaches longest stream time, time relay KT1 disconnects its normally opened contact, hot protective relay
The normally opened contact of KD1 power loss, hot protective relay KD1 disconnects, and contactor KM1 power loss makes electricity to disconnect motor power circuit
Machine stops working.After downtime reaches specified time, time relay KT1 is closed its normally opened contact, and motor is made to continue work
Make.
Motor overheating stops motor work:
Work as motor overheating, temperature switch KB1 is disconnected, and hot protective relay KD1 power loss disconnects the circuit of contactor KM1, connects
Tentaculum KM1 power loss disconnects motor power circuit, leaves the motor off work.When job requirement temperature is got in motor temperature decline,
Temperature switch KB1 closure, motor are devoted oneself to work again.
In the present embodiment, the third normally-closed contact of pressure switch KA1 and the second normally opened contact of contactor KM1 are in series with
Detection tabs are respectively used to the status signal and motor CRANK PULSES of external output pressure switch.It can be to interface pressure and motor
Operating status is monitored.
In addition to the implementation, the present invention can also have other embodiments.It is all to use equivalent substitution or equivalent transformation shape
At technical solution, fall within the scope of protection required by the present invention.
Claims (7)
1. a kind of auxiliary oil-free air compressor device, it is characterised in that: including sequentially connected oil-free air compressor, water
Separator, air filter, check valve and branch road pipe are dripped, the gas outlet of branch road pipe connects cylinder, is equipped with pressure on the pipe of branch road
Switch, safety valve and pressure gauge, the oil-free air compressor are driven by motor；Described device also has the time relay, connects
Tentaculum and hot protective relay, there are three normally-closed contacts for the pressure switch tool, and the time relay and contactor are respectively provided with two
A normally opened contact, hot protective relay have a normally opened contact, pressure switch the first normally-closed contact series connection turn-on time after
The circuit of electric appliance, the second normally-closed contact of pressure switch, the normally opened contact of hot protective relay and the time relay first often
The circuit of contact series access contactor is opened, the third normally-closed contact of pressure switch is in series with detection tabs, for detecting pressure
The state of switch；The included temperature switch series connection access hot protective relay of the second normally opened contact and motor of the time relay
Circuit；The circuit of the first normally opened contact series connection access motor of contactor, the second normally opened contact of contactor are in series with detection and connect
Head, for detecting motor operational situation.
2. auxiliary oil-free air compressor device according to claim 1, it is characterised in that: the oil-free air compression
The compressed air delivery outlet of machine connects the air inlet of drop separator by copper pipe.
3. auxiliary oil-free air compressor device according to claim 1, it is characterised in that: the check valve both ends point
It Tong Guo not the gas outlet of piping connection drop separator and the air inlet of branch road pipe.
4. auxiliary oil-free air compressor device according to claim 1, it is characterised in that: have in the branch road pipe
Air flue, pressure switch, safety valve, pressure gauge air inlet be connected to the air flue in the pipe of branch road.
5. auxiliary oil-free air compressor device according to claim 1, it is characterised in that: also have rack and control
Case, the oil-free air compressor, drop separator, air filter, check valve and branch road pipe are fixed on the rack, when described
Between relay, contactor, hot protective relay be mounted in control cabinet.
6. auxiliary oil-free air compressor device according to claim 5, it is characterised in that: the control cabinet is fixed on
In rack.
7. auxiliary oil-free air compressor device according to claim 1, it is characterised in that: the contactor is parallel with
Overvoltage protection resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710324089.0A CN106949036B (en) | 2017-05-10 | 2017-05-10 | A kind of auxiliary oil-free air compressor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710324089.0A CN106949036B (en) | 2017-05-10 | 2017-05-10 | A kind of auxiliary oil-free air compressor device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106949036A CN106949036A (en) | 2017-07-14 |
| CN106949036B true CN106949036B (en) | 2019-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710324089.0A Active CN106949036B (en) | 2017-05-10 | 2017-05-10 | A kind of auxiliary oil-free air compressor device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107628012A (en) * | 2017-10-23 | 2018-01-26 | 中车兰州机车有限公司 | Air damper and rail vehicle |
| CN109707611A (en) * | 2019-03-15 | 2019-05-03 | 江西中汽瑞华新能源科技有限公司 | A kind of control system using blowback valve protection air compressor machine |
| CN114738253A (en) * | 2022-03-18 | 2022-07-12 | 交控科技股份有限公司 | Rail vehicle air compressor start control circuit and method |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56162290A (en) * | 1980-05-15 | 1981-12-14 | Daikin Ind Ltd | Compressor with oil pressure protecting pressure switch |
| CN201232626Y (en) * | 2008-07-28 | 2009-05-06 | 江西铜业集团公司 | Control device for air compressor |
| CN201391443Y (en) * | 2009-04-27 | 2010-01-27 | 东莞市太安伊侨实业有限公司 | Compressor protective circuit |
| CN201443499U (en) * | 2009-07-28 | 2010-04-28 | 中国北车集团大连机车车辆有限公司 | Electric locomotive auxiliary compressor automatic control device |
| CN102312828A (en) * | 2011-05-25 | 2012-01-11 | 南车戚墅堰机车有限公司 | Start-stop control method for double air compressor of locomotive |
| CN202165256U (en) * | 2011-06-23 | 2012-03-14 | 付希刚 | Controller for air compressor |
| CN202690448U (en) * | 2012-07-20 | 2013-01-23 | 上海优耐特斯压缩机有限公司 | Control system for low-pressure oil injection screw compressor |
| CN204283829U (en) * | 2014-10-17 | 2015-04-22 | 南京恒达压缩机有限公司 | air compressor start-stop control system |
| CN204610287U (en) * | 2015-04-30 | 2015-09-02 | 临涣焦化股份有限公司 | Screw air compressor control system circuit |
| CN205592116U (en) * | 2016-03-21 | 2016-09-21 | 吴辉进 | Control system of air compressor |
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2017
- 2017-05-10 CN CN201710324089.0A patent/CN106949036B/en active Active
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| CN106949036A (en) | 2017-07-14 |
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