CN103195687A - Oil cut-off protection device of air compressor - Google Patents
Oil cut-off protection device of air compressor Download PDFInfo
- Publication number
- CN103195687A CN103195687A CN2013101166902A CN201310116690A CN103195687A CN 103195687 A CN103195687 A CN 103195687A CN 2013101166902 A CN2013101166902 A CN 2013101166902A CN 201310116690 A CN201310116690 A CN 201310116690A CN 103195687 A CN103195687 A CN 103195687A
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- oil
- pressure gauge
- electric contact
- air compressor
- protection device
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Abstract
The invention discloses an oil cut-off protection device of an air compressor. The oil cut-off protection device of the air compressor comprises a machine body and an oil flow regulating valve. The oil flow regulating valve is connected with the machine body and an oil filter I, electro connecting pressure gauges are installed on the oil flow regulating valve and the oil filter I, the oil filer I is sequentially connected with an oil cooler, a heat control valve, an oil-gas barrel, an oil separator and the machine body, one end of an oil filter II is connected with the machine body, the other end of the oil filter II is connected with the oil-gas barrel, and an oil pressure gauge is installed on the oil separator. The oil cut-off protection device of the air compressor can be used for automatic protection under the condition of automatic power-off and motor power failure when oil pressure is low, and is simple, economical and convenient o install. Emerged faults can be found easily.
Description
Technical field
The present invention relates to a kind of device of air compressor, relate in particular to a kind of air compressor oil cutting-off protection device.
Background technique
MLGF9.6/8-55G type air compressor is that motor, helical-lobe compressor, cooling blower, cooler, fuel tank and automatically controlled and shell are combined, have compact structure, be convenient to mobile, efficient is high, can realize unmanned, the characteristics of distant place control, therefore is widely used in the mine and with the enterprise of wind as power.Its automatical control system has decompression, short circuit, overcurrent, the phase failure, electric leakage, overtemperature, overpressure protection function; stop up protection with oil strainer; but do not have the protection that cutting oil does not have oil or fuel feeding deficiency; there is potential safety hazard; thereby do not meet the regulation of " safety regulations in coal mine "; it is installed additional oil cutting-off protection, must carry out.
Summary of the invention
The purpose of this invention is to provide a kind of air compressor oil cutting-off protection device, when oil pressure is lower, can realize automatic disconnection.
For achieving the above object, the technical solution used in the present invention is:
A kind of air compressor oil cutting-off protection device, comprise body and oily flow control valve, the oil flow control valve connects body, it is characterized in that: oily flow control valve connects the oil strainer I, oil flow control valve and oil strainer I are installed pressure gauge with electric contact, and the oil strainer I connects oil cooler, thermo valve, barrel of oil and gas, the thin separator of oil, body successively; Oil strainer II one end connects body, and the other end of oil strainer II connects barrel of oil and gas; On the thin separator of oil oil pressure gauge is installed.
According to described air compressor oil cutting-off protection device; it is characterized in that: described pressure gauge with electric contact is connected on the oil pressure gauge electric contact; the oil pressure gauge electric contact is connected with KT, FU, KM, and main control loop is made up of KT1, control knob, main contactor, essential safety loop.
According to described air compressor oil cutting-off protection device, it is characterized in that: the oil pressure of described pressure gauge with electric contact is during greater than 0.2Mpa, and the oil pressure gauge electric contact is in normally open; The oil pressure of described pressure gauge with electric contact is located during less than 0.2Mpa, the automatic disconnection of oil pressure gauge electric contact, and KT1 disconnects, and motor stops.
Advantageous effect of the present invention is: can be in the lower automatic outage of oil pressure, and motor has a power failure, and plays the effect of automatic protection, and is not only simply but also economical, easy for installation and break down and easily look for.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is circuit controling drawing of the present invention.
In the accompanying drawing: 1, body; 2, oily flow control valve; 3, pressure gauge with electric contact; 4, oil strainer I; 5, oil cooler; 6, thermo valve; 7, barrel of oil and gas; 8, the thin separator of oil; 9, oil pressure gauge; 10, oil strainer II; 11, oil pressure gauge electric contact; 12, control knob; 13, main contactor; 14, essential safety loop; FU, insurance; KM, main contactor auxiliary contact; KT, the time relay; KT1, time-delay disconnect normally closed electric shock.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments:
The present invention as shown in Figure 1, 2, a kind of air compressor oil cutting-off protection device, comprise body 1 and oily flow control valve 2, oil flow control valve 2 connects body 1, it is characterized in that: oily flow control valve 2 connects oil strainer I 4, oil flow control valve 2 is installed pressure gauge with electric contact 3 with oil strainer I 4, and oil strainer I 4 connects oil cooler 5, thermo valve 6, barrel of oil and gas 7, the thin separator 8 of oil, body 1 successively; Oil strainer II 10 1 ends connect body 1, and the other end of oil strainer II 10 connects barrel of oil and gas 7; On the thin separator 8 of oil oil pressure gauge 9 is installed.According to described air compressor oil cutting-off protection device; it is characterized in that: described pressure gauge with electric contact 3 is connected on the oil pressure gauge electric contact 11; oil pressure gauge electric contact 11 is connected with KT, FU, KM, and main control loop is made up of KT1, control knob 12, main contactor 13, essential safety loop 14.According to described air compressor oil cutting-off protection device, it is characterized in that: the oil pressure of described pressure gauge with electric contact 3 is during greater than 0.2Mpa, and oil pressure gauge electric contact 11 is in normally open; The oil pressure of described pressure gauge with electric contact 3 is located during less than 0.2Mpa, 11 automatic disconnections of oil pressure gauge electric contact, and KT1 disconnects, and motor stops.
Working principle of the present invention such as Fig. 1; shown in 2; when air compressor normally moves; the pressure of its cutting oil is generally in the 0.2-0.4MPa scope; oil pressure is not less than 0.2MPa; the oil pressure gauge of former factory configuration is replaced with pressure gauge with electric contact 3; seal in the break contact of pressure gauge with electric contact 3 and the normally opened contact of main contactor 13 with 36V time relay KT; when pressing start button SB1; the relay adhesive in essential safety loop 14; the extension of the time relay disconnects break contact KT1 closure; the main contactor adhesive; air compressor starts; this moment main contactor auxiliary contact KM closure; time relay coil KT gets; following oil pressure gauge break contact of normal condition is transferred to 0.2MPa; break contact at oil pressure pressure gauge with electric contact during greater than 0.2MPa disconnects like this; time relay KT must not; the air compressor proper functioning; if when no oil or oil starvation; oil pressure is lower than the electric contact meeting auto-closing of 0.2MPa oil pressure gauge; time relay KT gets; (time relay is adjusted to 20s; when air compressor normally moves in the 15s lubricating oil pressure enough rise to more than the 0.2MPa) its time-delay disconnects behind the time-delay 20s normally-closed contact KT1 disconnects; main contactor coil KM outage; the motor outage shuts down, the protective function of air compressor autostop when reaching no oil or fuel feeding deficiency.
Can be in the lower automatic outage of oil pressure, motor has a power failure, and plays the effect of automatic protection, and is not only simply but also economical, easy for installation and break down and easily look for.
Embodiment recited above is described preferred implementation of the present invention; be not that design of the present invention and protection domain are limited; under the prerequisite that does not break away from design concept of the present invention; common engineers and technicians make technological scheme of the present invention in related domain various modification and improvement all should fall into protection scope of the present invention.
Claims (3)
1. air compressor oil cutting-off protection device, comprise body (1) and oily flow control valve (2), oil flow control valve (2) connects body (1), it is characterized in that: oily flow control valve (2) connects oil strainer I (4), oil flow control valve (2) is installed pressure gauge with electric contact (3) with oil strainer I (4), and oil strainer I (4) connects oil cooler (5), thermo valve (6), barrel of oil and gas (7), the thin separator (8) of oil, body (1) successively; Oil strainer II (10) one ends connect body (1), and the other end of oil strainer II (10) connects barrel of oil and gas (7); The thin separator (8) of oil is gone up oil pressure gauge (9) is installed.
2. air compressor oil cutting-off protection device according to claim 1; it is characterized in that: described pressure gauge with electric contact (3) is connected on the oil pressure gauge electric contact (11); oil pressure gauge electric contact (11) is connected with KT, FU, KM, and main control loop is made up of KT1, control knob (12), main contactor (13), essential safety loop (14).
3. air compressor oil cutting-off protection device according to claim 1 and 2 is characterized in that: the oil pressure of described pressure gauge with electric contact (3) is during greater than 0.2Mpa, and oil pressure gauge electric contact (11) is in normally open; The oil pressure of described pressure gauge with electric contact (3) is located during less than 0.2Mpa, oil pressure gauge electric contact (11) automatic disconnection, and KT1 disconnects, and motor stops.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101166902A CN103195687A (en) | 2013-04-07 | 2013-04-07 | Oil cut-off protection device of air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101166902A CN103195687A (en) | 2013-04-07 | 2013-04-07 | Oil cut-off protection device of air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103195687A true CN103195687A (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101166902A Pending CN103195687A (en) | 2013-04-07 | 2013-04-07 | Oil cut-off protection device of air compressor |
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| CN (1) | CN103195687A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508232A (en) * | 2015-12-24 | 2016-04-20 | 常熟市淼泉压缩机配件有限公司 | Oil pressure protection switch |
| CN106992495A (en) * | 2017-04-20 | 2017-07-28 | 广州市豪尔生医疗设备有限公司 | A kind of earth leakage protective device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0968183A (en) * | 1995-09-04 | 1997-03-11 | Kobe Steel Ltd | Oil-cooled positive-displacement compressor |
| JPH09126132A (en) * | 1995-11-07 | 1997-05-13 | Mitsubishi Heavy Ind Ltd | Air compression device |
| US20030223885A1 (en) * | 2002-06-03 | 2003-12-04 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Oil-cooled compressor |
| CN2789457Y (en) * | 2005-05-04 | 2006-06-21 | 余金荣 | Automatic cut-out device for air compressor lubricating system |
| CN202673651U (en) * | 2012-06-28 | 2013-01-16 | 天津沸尔德金属制品有限公司 | Piston air compressor with self protection device |
| CN203175863U (en) * | 2013-04-07 | 2013-09-04 | 山东八一煤电化有限公司 | Oil cut-off protection device for air compressor |
-
2013
- 2013-04-07 CN CN2013101166902A patent/CN103195687A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0968183A (en) * | 1995-09-04 | 1997-03-11 | Kobe Steel Ltd | Oil-cooled positive-displacement compressor |
| JPH09126132A (en) * | 1995-11-07 | 1997-05-13 | Mitsubishi Heavy Ind Ltd | Air compression device |
| US20030223885A1 (en) * | 2002-06-03 | 2003-12-04 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Oil-cooled compressor |
| CN2789457Y (en) * | 2005-05-04 | 2006-06-21 | 余金荣 | Automatic cut-out device for air compressor lubricating system |
| CN202673651U (en) * | 2012-06-28 | 2013-01-16 | 天津沸尔德金属制品有限公司 | Piston air compressor with self protection device |
| CN203175863U (en) * | 2013-04-07 | 2013-09-04 | 山东八一煤电化有限公司 | Oil cut-off protection device for air compressor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508232A (en) * | 2015-12-24 | 2016-04-20 | 常熟市淼泉压缩机配件有限公司 | Oil pressure protection switch |
| CN106992495A (en) * | 2017-04-20 | 2017-07-28 | 广州市豪尔生医疗设备有限公司 | A kind of earth leakage protective device |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130710 |