CN202350487U - Variable frequency speed control vacuuming system for material vacuum low-temperature continuous drying device - Google Patents
Variable frequency speed control vacuuming system for material vacuum low-temperature continuous drying device Download PDFInfo
- Publication number
- CN202350487U CN202350487U CN 201120494383 CN201120494383U CN202350487U CN 202350487 U CN202350487 U CN 202350487U CN 201120494383 CN201120494383 CN 201120494383 CN 201120494383 U CN201120494383 U CN 201120494383U CN 202350487 U CN202350487 U CN 202350487U
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- vacuum
- electrically connected
- material cavity
- speed control
- microcontroller
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Abstract
The utility model discloses a variable frequency speed control vacuuming system for a material vacuum low-temperature continuous drying device. The variable frequency speed control vacuuming system comprises a vacuum pump which is communicated with a material cavity, wherein a pressure sensor is arranged in the material cavity; a signal output end of the pressure sensor is electrically connected with a signal input end of a microcontroller; a signal output end of the microcontroller is electrically connected with a signal input end of a frequency converter module; and a power output end of the frequency converter module is electrically connected with a power input end of the vacuum pump. The variable frequency speed control vacuuming system has the advantages that: when vacuum degree in the material cavity is low, a material in a cavity can be prevented from being sucked into a vacuum pipe; and when the vacuum degree in the material cavity meets requirements, a motor of the vacuum pump is prevented from entering an overload state. Energy saving and consumption reduction are realized, and the life of the vacuum pump can be prolonged.
Description
Technical field
The utility model relates to the field of vacuumizing, and especially relates to a kind of frequency control pumped vacuum systems that is used for material vacuum low temperature continuous drier.
Background technology
At present, commercially available vacuum and low temperature continuous drying system, the mode that the material cavity vacuumizes are that vavuum pump (or pumping plant) directly vacuumizes the material cavity, and the motor of vavuum pump is in the nature running status, and be except that starting and stopping, all not controlled.When material cavity vacuum was low, vacuum tube and material cavity junction wind speed were excessive, cause partial material to be drawn into vacuum tube; When material cavity intracoelomic cavity vacuum reached requirement, vavuum pump worked on, and caused material cavity intracoelomic cavity vacuum too high, and vaccum pump motor gets into overload, and energy consumption increases, influences the life-span of vavuum pump.
Summary of the invention
The utility model purpose is to provide a kind of frequency control pumped vacuum systems that is used for material vacuum low temperature continuous drier that guarantees material cavity vacustat.
For realizing above-mentioned purpose, the utility model can be taked following technical proposals:
The described frequency control pumped vacuum systems that is used for material vacuum low temperature continuous drier of the utility model; Comprise the vavuum pump that is connected with the material cavity; In said material cavity, be provided with pressure sensor; The signal output part of said pressure sensor is electrically connected with the signal input part of microcontroller, and the signal output part of said microcontroller is electrically connected with the signal input part of frequency converter module, and the power output end of said frequency converter module is electrically connected with the power input of said vavuum pump.
Said vavuum pump is provided with the speed probe module, and the signal output part of said speed probe module is electrically connected with the signal input part of said microcontroller.
When the utility model advantage is that vacuum is low in the material cavity, can avoid the material of inner chamber to be inhaled in the vacuum tube; When vacuum reaches requirement in the material cavity, avoid the motor of vavuum pump to get into overload.Not only energy-saving and cost-reducing but also can prolong life-span of vavuum pump.
Description of drawings
Fig. 1 is the schematic block circuit diagram of the utility model.
The specific embodiment
As shown in the figure; The described frequency control pumped vacuum systems that is used for material vacuum low temperature continuous drier of the utility model; Comprise the vavuum pump 2 that is connected with material cavity 1; In said material cavity 1, be provided with pressure sensor; The signal output part of said pressure sensor is electrically connected with the signal input part of microcontroller, and the signal output part of said microcontroller is electrically connected with the signal input part of frequency converter module, and the power output end of said frequency converter module is electrically connected with the power input of said vavuum pump 2; Said vavuum pump 2 is provided with the speed probe module, and the signal output part of said speed probe module is electrically connected with the signal input part of said microcontroller.
Its operation principle is: when vacuum in the material cavity 1 is low; Then microcontroller is according to the signal input of pressure sensor; Judge to obtain vavuum pump 2 due rotating speeds under the current pressure, to frequency converter module output control signal, the alternating current of control frequency converter module output correlated frequency and voltage; Control vavuum pump 2 is operated in the rotating speed state of requirement, guarantees that material can not brought into vacuum tube by suction pressure under this state.Simultaneously, the speed probe module is delivered to microcontroller with the tach signal of detected vavuum pump 2, and microcontroller judges that the rotating speed of vavuum pump 2 is whether in requiring the range of speeds, if discrepancy is arranged, through carrying control signal to adjust to the frequency converter module.
When vacuum reaches the instructions for use of system in the material cavity 1; Microcontroller is judged the input signal of pressure sensor; To the frequency converter module output signal,, thereby make the pressure stability of material cavity 1 inner chamber through the motor speed of frequency converter module controls vavuum pump 2; This moment, the motor of vavuum pump 2 was in slave mode, had avoided the motor of vavuum pump 2 to get into overload.If material cavity 1 vacuum reduces, then improve the motor speed of vavuum pump 2, thereby make the vacuum up of material cavity 1; If 1 vacuum up of material cavity then reduces the motor speed of vavuum pump 2, thereby material cavity 1 vacuum is reduced.Whether microcontroller judges vavuum pump 2 motor speeds at claimed range according to the signal of speed probe module in this process, and in time adjusts through the frequency converter module.
Claims (2)
1. frequency control pumped vacuum systems that is used for material vacuum low temperature continuous drier; Comprise the vavuum pump (2) that is connected with material cavity (1); It is characterized in that: in said material cavity (1), be provided with pressure sensor; The signal output part of said pressure sensor is electrically connected with the signal input part of microcontroller; The signal output part of said microcontroller is electrically connected with the signal input part of frequency converter module, and the power output end of said frequency converter module is electrically connected with the power input of said vavuum pump (2).
2. the frequency control pumped vacuum systems that is used for material vacuum low temperature continuous drier according to claim 1; It is characterized in that: said vavuum pump (2) is provided with the speed probe module, and the signal output part of said speed probe module is electrically connected with the signal input part of said microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120494383 CN202350487U (en) | 2011-12-02 | 2011-12-02 | Variable frequency speed control vacuuming system for material vacuum low-temperature continuous drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120494383 CN202350487U (en) | 2011-12-02 | 2011-12-02 | Variable frequency speed control vacuuming system for material vacuum low-temperature continuous drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202350487U true CN202350487U (en) | 2012-07-25 |
Family
ID=46539486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120494383 Expired - Lifetime CN202350487U (en) | 2011-12-02 | 2011-12-02 | Variable frequency speed control vacuuming system for material vacuum low-temperature continuous drying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202350487U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014997A (en) * | 2016-07-12 | 2016-10-12 | 上海伊莱茨真空技术有限公司 | Three-level-roots-water ring intelligent frequency converting control vacuum system and control method thereof |
-
2011
- 2011-12-02 CN CN 201120494383 patent/CN202350487U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014997A (en) * | 2016-07-12 | 2016-10-12 | 上海伊莱茨真空技术有限公司 | Three-level-roots-water ring intelligent frequency converting control vacuum system and control method thereof |
| CN106014997B (en) * | 2016-07-12 | 2018-07-13 | 上海伊莱茨真空技术有限公司 | A kind of three-level Roots-water ring intelligent frequency-conversion control vacuum system and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |
|
| CX01 | Expiry of patent term |