CN100520062C - Air compressor - Google Patents
Air compressor Download PDFInfo
- Publication number
- CN100520062C CN100520062C CNB2006101462037A CN200610146203A CN100520062C CN 100520062 C CN100520062 C CN 100520062C CN B2006101462037 A CNB2006101462037 A CN B2006101462037A CN 200610146203 A CN200610146203 A CN 200610146203A CN 100520062 C CN100520062 C CN 100520062C
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- CN
- China
- Prior art keywords
- air compressor
- controller
- pressure
- unloading valve
- air
- 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.)
- Expired - Fee Related
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Abstract
The present invention relates to an air compressor with pressure automatic control. It is formed from air compressor, air storage tank and controller. On the compressed air inlet pipe of air storage tank a three-way pipe is set, three ports of said three-way pipe are respectively connected with unloading valve outlet, pressure sensor and air storage tank; the unloading valve inlet is connected with compressed air outlet pipe of air compressor; the pressure signal output end of said pressure sensor is connected with controller. Besides, said invention also provides the concrete working principle of said air compressor and its concrete operation method.
Description
Technical field
The present invention relates to the air compressor technical field, particularly a kind of pressure air compressor of control automatically that has.
Background technique
Air compressor has been widely used in the middle of industry, agricultural, traffic, national defence, the life.Therefore the reliability of air compressor, degree easy to use, energy-saving effect etc. there is higher requirement.
The output of the pressurized air of the air compressor of prior art is that pilot pressure fluctuates in restricted portion, usually with the starting of pressure relay or pressure governor control motor, close, substantially can be within the specific limits with delivery pressure control.When delivery pressure is reduced to a certain particular value, the motor starting running, air compressor improves the pressure in the gas holder; When delivery pressure is higher than a certain particular value, close motor and shut down, the compressed air pressure in the gas holder is remained in certain pressure range.
The defective of the air compressor of prior art is to set or to adjust pressure in the larger context, and pressure control is also not accurate enough; Its motor the time is at full speed in work, starting under load, thus motor starting electric current height, power consumption is big, operating cost is high, bigger to the influence in working life of equipment.Pressure relay control is that contact circuit control is arranged, and its defective is conspicuous.
Summary of the invention
In order to address the deficiencies of the prior art, the invention discloses a kind of air compressor and controlling method.
Concrete grammar is between the compressed air outlet pipe of air compressor and gas holder three-way pipe to be set.One end of three-way pipe connects gas holder; One end connects the unloading valve outlet, and the unloading valve inlet connects air compressor compressed air outlet pipe; An other end of three-way pipe connects pressure transducer, and the signal output part of pressure transducer connects controller.
Unloading valve be a single current with safety check function to valve, when inlet pressure is higher than when outlet, unloading valve is a path; When unloading valve inlet pressure or inlet pressure identical with outlet pressure was lower than outlet pressure, unloading valve cut out.When unloading valve cuts out, the pressure off-load of inlet.Unloading valve commonly used has two kinds: a kind of be the automatic deloading valve, a kind of be electronic unloading valve.Since be provided with unloading valve, the air compressor prestart, and can keep the air compressor compressed air outlet is normal pressure.
Pressure transducer is one pressure signal is converted to the device of electrical signal that when pressure signal changed, the electrical signal of its output was along with variation.
Controller is one and is provided with the control gear that power supply module, single-chip microcomputer, switching circuit, digital display, control knob etc. are formed.
Realization the technical solution used in the present invention is: a kind of air compressor and controlling method are to be made of motor, air compressor, gas holder, controller, it is characterized in that: on the compressed air inlet pipe of gas holder three-way pipe is set, three ports of three-way pipe connect unloading valve outlet, pressure transducer, gas holder respectively; The unloading valve inlet connects air compressor compressed air outlet pipe; Pressure transducer pressure signal output terminal connects controller; The power line of motor connects controller, by controller control air compressor start or shutdown.
Unloading valve is automatic deloading valve or automatically controlled unloading valve.
Pressure transducer is the electrical signal pressure transducer.
Controller is the single-chip microcomputer micro controller, is made of power supply module, single-chip microcomputer, switching circuit, digital display, control knob.
Working procedure of the present invention is: connect power supply, and starting air compressor, behind the facilities for observation working stability, the working pressure of setting controller (upper limit pressure and threshold pression) numerical value, the controller display screen of controller is set to the gas receiver pressure-display again.When gas receiver pressure reached the maximum working pressure of setting, controller sent instruction, and motor stops, the unloading valve off-load; When gas receiver pressure dropped to the minimum working pressure of setting, controller sent instruction, motor starting, and air compressor work is inflated to gas receiver.
The invention has the beneficial effects as follows: owing to used unloading valve, air compressor is started under the outlet normal pressure, reduce the starting-impact power of the starting current and the compressor of motor; Can set or adjust pressure in the larger context, and and then with delivery pressure be controlled near this setting value one more among a small circle in, and pressure control also accurately, directly perceived.The present invention is consumed energy low, good energy-conserving effect, equipment work is steadily reliable.But its wide popularization and application is in all trades and professions.
Description of drawings
Accompanying drawing 1 is a kind of air compressor and controlling method structural representation.
Among the figure: 1-motor, 2-motor power line, 3-air compressor, 4-air compressor pressurized air steam outlet pipe, 5-unloading valve signal control circuit, 6-controller, 7-controller control knob, 8-controller digital display screen, 9-pressure transducer, 10-power line and power plug, 11-unloading valve, 12-pressure sensor signal control circuit, 13-gas holder, 14-three-way pipe, 15-pressurized air air supply opening and Safety valve.
Embodiment
Embodiment 1 is to use the mode of execution of automatically controlled unloading valve:
Motor (1) and air compressor (3) adopt whole machine, are fixed on the gas holder (13), and air compressor pressurized air steam outlet pipe (4) connects the inlet of unloading valve (11), and the outlet of unloading valve (11) connects gas holder (13) via three-way pipe (14); The another port of three-way pipe (14) connects pressure transducer (9), and pressure sensor signal control circuit (12) connects controller (6), and controller (6) is provided with power line and power plug (10); Motor (1) is connected by motor power line (2) and controller (6); The unloading valve signal control circuit (5) of unloading valve (11) connects controller (6); Controller (6) is arranged on the top of gas holder (13) one ends; Controller (6) is the single-chip microcomputer micro controller, and controller control knob (7) and controller digital display screen (8) are arranged on its panel; One end of gas holder (13) is provided with pressurized air air supply opening and Safety valve (15).
Because present embodiment adopts the automatic deloading valve, the unloading valve signal control circuit (5) in the above embodiments 1 omits, and the control circuit of controller (6) also can be done slightly to simplify and get final product, and other are with embodiment 1.
Embodiment 3: on embodiment 1,2 basis controller (6) is set up frequency changer circuit and frequency conversion control circuit.According to the load condition of air compressor, the rotating speed of control motor will increase substantially every performance index of air compressor.
The model machine of the above embodiments 1,2,3 trial-productions not only can accurately be controlled delivery pressure, realizes delivery pressure in upper limit pressure of setting and the reliable control in the threshold pression scope, and can show current delivery pressure with numeral, and is clear, directly perceived.Its structure and production technology are simple, the reliability height, and cost of production is low.It can be widely used in the fields such as industrial and agricultural production and national defence, scientific research.
Claims (4)
1, a kind of air compressor is to be made of motor, air compressor, gas holder, controller, it is characterized in that: on the compressed air inlet pipe of gas holder three-way pipe is set, three ports of three-way pipe connect unloading valve outlet, pressure transducer, gas holder respectively; The unloading valve inlet connects air compressor compressed air outlet pipe; Pressure transducer pressure signal output terminal connects controller; The power line of motor connects controller, by controller control air compressor start or shutdown.
2, a kind of air compressor according to claim 1 is characterized in that: unloading valve is automatic deloading valve or automatically controlled unloading valve.
3, a kind of air compressor according to claim 1 is characterized in that: pressure transducer is the electrical signal pressure transducer.
4, a kind of air compressor according to claim 1 is characterized in that: controller is a control gear that is provided with power supply module, single-chip microcomputer, switching circuit, digital display, control knob composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101462037A CN100520062C (en) | 2006-12-12 | 2006-12-12 | Air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101462037A CN100520062C (en) | 2006-12-12 | 2006-12-12 | Air compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1975162A CN1975162A (en) | 2007-06-06 |
| CN100520062C true CN100520062C (en) | 2009-07-29 |
Family
ID=38125439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101462037A Expired - Fee Related CN100520062C (en) | 2006-12-12 | 2006-12-12 | Air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100520062C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799007B (en) * | 2010-03-31 | 2014-07-16 | 中国第一汽车集团公司 | Air compressor load factor survey meter |
| WO2012113144A1 (en) * | 2011-02-24 | 2012-08-30 | Zhang Yongsheng | Low oil consumption piston type air compressor with internal-cycle piping device |
| CN103121445A (en) * | 2011-11-18 | 2013-05-29 | 北汽福田汽车股份有限公司 | New energy passenger car and air brake air supply unloading system thereof |
| CN104533770B (en) * | 2014-11-26 | 2016-06-08 | 贵州中电振华精密机械有限公司 | A kind of guard method that can effectively prevent air compressor from damaging |
| CN108050038A (en) * | 2018-01-10 | 2018-05-18 | 浙江万安其弗汽车零部件有限公司 | A kind of Ventilated electric engine-driven air compressor |
| CN108644098A (en) * | 2018-05-04 | 2018-10-12 | 上海路虹电子科技有限公司 | A kind of full-automatic control system and its control method of air compressor |
-
2006
- 2006-12-12 CN CNB2006101462037A patent/CN100520062C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1975162A (en) | 2007-06-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090729 Termination date: 20171212 |
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| CF01 | Termination of patent right due to non-payment of annual fee |