CN2895983Y - Methane constant-pressure control device - Google Patents
Methane constant-pressure control device Download PDFInfo
- Publication number
- CN2895983Y CN2895983Y CN 200620083733 CN200620083733U CN2895983Y CN 2895983 Y CN2895983 Y CN 2895983Y CN 200620083733 CN200620083733 CN 200620083733 CN 200620083733 U CN200620083733 U CN 200620083733U CN 2895983 Y CN2895983 Y CN 2895983Y
- Authority
- CN
- China
- Prior art keywords
- motor
- pressure transducer
- outlet pipe
- inverter
- frequency variator
- 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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- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The utility model relates to a methane constant-pressure control device, which includes the electrical motor and the impeller shaft-connected with the electrical motor. Inlet pipe and outlet pipe linked to the inner part of the motor are connected to the pressurized-fan, the structural characteristics is that the AC power supply input end of the electrical motor is connected to the AC power supply output end with a inverter which has the proportional-integral-differential regulation function, and the DC power output end of the inverter and the pressure sensor connected electrically, the signal output end of the pressure sensor fed back into the inverter control terminal again, and the pressure sensor is connected to the outlet pipe. Because the adoption of the inverter which has the proportional-integral-differential regulation function, the utility model makes the control circuit more simple and reliable, and has the advantages of long-term maintenance free, low power of consumption and less operation noise.
Description
Technical field
The utility model relates to a kind of biogas constant voltage control gear.
Background technique
Biogas is a kind of free of contamination eco-friendly power source, promote the use of in vast rural area, substitute straw, coal of timber, crops etc. with it, not only can be energy-conservation, and improved the rural area living environment, changed the village looks, improved peasant's quality of life.In order to guarantee user's gas just commonly used, in large-scale biogas engineering, all be provided with supercharging and stable-pressure device, normally dragging roots blower with motor pressurizes at full speed, through the voltage stabilizing of mechanical type reduction valve, this general supercharging and the deficiency of stable-pressure device are that big, the operating noise of power consumpiton is big and maintenance period short.
Summary of the invention
The purpose of this utility model provides the biogas constant voltage control gear that a kind of power consumpiton is little, the operation noise is little and maintenance period is long.
In order to realize above-mentioned purpose, the biogas constant voltage control gear that is provided, comprise motor and the booster fan impeller that is coupling with motor, on the booster fan casing, be connected to the suction tude and the steam outlet pipe that are communicated with chassis cavity, its structural feature is that the ac power input end of motor is connected with the ac power output of the frequency variator that has the proportion integration differentiation regulatory function, the dc power output end of this frequency variator is electrically connected with the pressure transducer formation, the signal output part of this pressure transducer feeds back to the control end of frequency variator again, and pressure transducer is connected on the steam outlet pipe.
In order to ensure safety, above-mentioned motor is an anti-explosion motor, and pressure transducer is the explosion-proof pressure sensor.
Biogas constant voltage control gear provided by the utility model, when mounted, with suction tude be communicated with the air outlet of the gas storage regulating tank of biomass pool, with being communicated with of steam outlet pipe and user with air pipe, frequency variator is installed in the distribution box, constitute with sensor and motor by lead and be electrically connected.
The working principle of biogas constant voltage control gear provided by the utility model is: the biogas pressure size in the steam outlet pipe is after pressure transducer detects, the standard signal of output 4mA-20mA, be the big time output 4mA of pressure, pressure hour output 20mA, this standard signal feeds back to the control end of the frequency variator that has the proportion integration differentiation regulatory function, ac power output output 0HZ-50HZ by frequency variator, the three phase mains of 380V, power to motor, the rotor rotation of motor, the rotating speed of rotor was low when frequency was low, the rotating speed height of rotor when frequency is high, the booster fan impeller synchronously rotation thereupon that is coupling with the rotor of motor.In other words, when the biogas pressure in the steam outlet pipe is excessive or too small, the control signal of the 4mA-20mA of pressure transducer output then diminishes or becomes big, this diminish or become big control signal make frequency variator output three-phase alternating-current supply the frequency correspondence step-down or uprise, this frequencies go lower or the three-phase alternating-current supply that uprises insert in the three-phase coil winding of motor stator, make the reduction or the rising of the rotating speed correspondence of rotor, the synchronization ground of the booster fan impeller that is coupling reduces or raises, use endotracheal biogas pressure reduction or rising, thereby keep the biogas pressure in the steam outlet pipe constant.
Learn by top narration, biogas constant voltage control gear provided by the utility model, owing to adopted the frequency variator that has the proportion integration differentiation regulatory function, make control circuit more simple and reliable, directly control motor straight connection type booster fan, its beneficial effect is: 1, maintenance period prolongs greatly; 2, power consumpiton little, the economize on electricity more than 30%; 3, the operation noise is little, has reduced the pollution of NOISE ON ENVIRONMENT.
Description of drawings
Embodiment of the present utility model is illustrated in conjunction with the accompanying drawings, and what wherein accompanying drawing drew is the structural representation of the described biogas constant voltage of embodiment control gear.
Among the figure: 1 is motor, and 2 is the booster fan impeller, and 3 is coupling, 4 is transmission shaft, 5 is bearing chamber, and 6 is seal ring, and 7 is the booster fan casing, 8 is suction tude, 9 is steam outlet pipe, and 10 is frequency variator, and 11 is pressure transducer, 12 is support, and to be frequency variator be connected lead with common port between the pressure transducer to CM.
Embodiment
With reference to accompanying drawing, the described biogas constant voltage of embodiment control gear, comprise motor 1, by coupling 3, transmission shaft 4, the booster fan impeller 2 that bearing chamber 5 and motor 1 are coupling, motor 1, bearing chamber 5 and booster fan casing 7 are fixed on the support 12, connected portion at transmission shaft 4 and booster fan casing 7 is equipped with seal ring 6, on booster fan casing 7, be connected to the suction tude 8 and the steam outlet pipe 9 that are communicated with chassis cavity, booster fan is selected the centrifugal booster fan of MQZ series for use, motor 1 is an anti-explosion motor, its ac power input end is connected with the ac power output of the frequency variator 10 that has the proportion integration differentiation regulatory function, the positive 24V of dc power output end output direct current of this frequency variator 10 is to pressure transducer 11 power supplies, pressure transducer 11 is selected AST4600/4-20mA explosion-proof pressure sensor for use, the 4mA-20mA normalized current signal of the signal output part output of this pressure transducer 11 feeds back to the control end of frequency variator 10 again, and pressure transducer 11 is connected on the steam outlet pipe 9.
In the present embodiment, because motor 1, frequency variator 10 and pressure transducer 11 are the products that adopt public offering on the market, belong to known technology, coupling 3 and bearing chamber 5 also are known technologies, their detailed structure of therefore not drawing.
Claims (2)
1, a kind of biogas constant voltage control gear, comprise motor (1) and the booster fan impeller (2) that is coupling with motor (1), on booster fan casing (7), be connected to the suction tude (8) and the steam outlet pipe (9) that are communicated with chassis cavity, the ac power input end that it is characterized in that motor (1) is connected with the ac power output of the frequency variator that has the proportion integration differentiation regulatory function (10), the dc power output end of this frequency variator (10) is electrically connected with pressure transducer (11) formation, the signal output part of this pressure transducer (11) feeds back to the control end of frequency variator (10) again, and pressure transducer (11) is connected on the steam outlet pipe (9).
2, biogas constant voltage control gear according to claim 1 is characterized in that motor (1) is an anti-explosion motor, and pressure transducer (11) is the explosion-proof pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620083733 CN2895983Y (en) | 2006-04-27 | 2006-04-27 | Methane constant-pressure control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620083733 CN2895983Y (en) | 2006-04-27 | 2006-04-27 | Methane constant-pressure control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2895983Y true CN2895983Y (en) | 2007-05-02 |
Family
ID=38065559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620083733 Expired - Fee Related CN2895983Y (en) | 2006-04-27 | 2006-04-27 | Methane constant-pressure control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2895983Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102851406A (en) * | 2012-08-03 | 2013-01-02 | 北京奇迪惠民科技投资有限公司 | Gas production speed control method and device of marsh gas tank |
| CN104696705A (en) * | 2015-03-20 | 2015-06-10 | 重庆市科学技术研究院 | System and method for controlling intelligent dynamic gas storage |
| CN105971883A (en) * | 2016-07-20 | 2016-09-28 | 广西玉林卓越动力发电设备有限公司 | Roots blower control system for controlling methane automatic pressurizing device |
-
2006
- 2006-04-27 CN CN 200620083733 patent/CN2895983Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102851406A (en) * | 2012-08-03 | 2013-01-02 | 北京奇迪惠民科技投资有限公司 | Gas production speed control method and device of marsh gas tank |
| CN102851406B (en) * | 2012-08-03 | 2014-04-23 | 北京奇迪惠民科技投资有限公司 | Gas production speed control method and device of marsh gas tank |
| CN104696705A (en) * | 2015-03-20 | 2015-06-10 | 重庆市科学技术研究院 | System and method for controlling intelligent dynamic gas storage |
| CN104696705B (en) * | 2015-03-20 | 2017-11-24 | 重庆市科学技术研究院 | Intelligent Dynamic lays in the gas storage control system and method for biogas |
| CN105971883A (en) * | 2016-07-20 | 2016-09-28 | 广西玉林卓越动力发电设备有限公司 | Roots blower control system for controlling methane automatic pressurizing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070502 Termination date: 20100427 |