CN201601653U - Device for preventing pharmaceutical factory anti-explosion cooling pump motor from overload operation - Google Patents
Device for preventing pharmaceutical factory anti-explosion cooling pump motor from overload operation Download PDFInfo
- Publication number
- CN201601653U CN201601653U CN2009203169389U CN200920316938U CN201601653U CN 201601653 U CN201601653 U CN 201601653U CN 2009203169389 U CN2009203169389 U CN 2009203169389U CN 200920316938 U CN200920316938 U CN 200920316938U CN 201601653 U CN201601653 U CN 201601653U
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- CN
- China
- Prior art keywords
- motor
- frequency converter
- air switch
- cooling pump
- pharmaceutical factory
- 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 - Lifetime
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Abstract
The utility model discloses a device for preventing a pharmaceutical factory anti-explosion cooling pump motor from overload operation, which comprises a motor (2) which is mechanically connected with a cooling pump (1). The motor (2) is connected with an output end of a frequency converter (3); an input end of the frequency converter (3) is connected with an output end of an air switch (4); and an input end of the air switch (4) is connected with a three-phase supply. Although only a frequency converter is added between the air switch and the motor, in practical application, the utility model solves the problems that trip always occurs, the temperature rise of the motor is too high, the running current is far more than the rated current, even the motor is burned out. Due to the adoption of the frequency converter, the rotating speed of the cooling pump is reduced, the amount of the cooling water is also reduced, the production efficiency is increased, and the production cost is saved.
Description
Technical field
The utility model relates to a kind of motor control assembly, particularly relates to a kind of device that prevents the explosion-proof coolant pump motor overload operation in pharmaceutical factory.
Background technology
The vacuum pump of explosion-proof the use in certain pharmaceutical factory pre-treatment workshop, be in operation often tripping operation appears, electric machine temperature rise is too high, running current surpasses rated current about 50%, the long-term use probably also can burn out motor.Looking into its reason, is because equipment does not match, and causes the vacuum pump overlond running.In the existing in fact cooling system, the consumption of cooling water has more than needed, do not need too big cooling flow in actual the use yet, but to transform whole cooling system or coolant pump, invest bigger, hope can improve on the basis of not changing existing equipment and coolant pump, solves the problem of coolant pump overload operation.
The utility model content
The purpose of this utility model is, a kind of device that prevents the explosion-proof coolant pump motor overload operation in pharmaceutical factory is provided.Can prevent the operation of coolant pump motor overload, in the useful life of improving the coolant pump motor, the while also can reduce the consumption of cooling water.Save operating cost.
The technical solution of the utility model: a kind of device that prevents the explosion-proof coolant pump motor overload operation in pharmaceutical factory, comprise motor with the coolant pump mechanical connection, motor is connected with the output of frequency converter, the input of frequency converter is connected with the output of air switch, and the input of air switch connects three phase mains.
In the above-mentioned device that prevents the explosion-proof coolant pump motor overload operation in pharmaceutical factory, the model of described frequency converter is CHRH-475DEE/4110DPE.
Compared with prior art, though the utility model has just increased a frequency converter between air switch and motor, but solved frequent appearance tripping operation in actual applications, electric machine temperature rise is too high, running current is considerably beyond rated current, even burns out the problem of motor.Because after adopting frequency converter, the rotating speed of coolant pump reduces, and has also reduced the consumption of cooling water, has improved production efficiency, has saved production cost.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Being labeled as in the accompanying drawing: 1-coolant pump, 2-motor, 3-frequency converter, 4-air switch.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment.Fig. 1 is a structural representation of the present utility model, a kind of device that prevents the explosion-proof coolant pump motor overload operation in pharmaceutical factory, comprise motor 2 with coolant pump 1 mechanical connection, motor 2 is connected with the output of frequency converter 3, the input of frequency converter 3 is connected with the output of air switch 4, and the input of air switch 4 connects three phase mains.The model of described frequency converter 3 is CHRH-475DEE/4110DPE.
Above-mentioned coolant pump and motor and air switch all are existing.During concrete enforcement, just the output of original air switch 4 and the connecting line of motor 2 are disconnected frequency converter 3 that model is XX of polyphone between air switch 4 and motor 2.The power input of motor 2 is connected with the output of frequency converter 3, and the input of frequency converter 3 is connected with the output of air switch 4, and the input of air switch 4 connects three phase mains.
Claims (2)
1. device that prevents pharmaceutical factory explosion-proof coolant pump motor overload operation, comprise motor (2) with coolant pump (1) mechanical connection, it is characterized in that: motor (2) is connected with the output of frequency converter (3), the input of frequency converter (3) is connected with the output of air switch (4), and the input of air switch (4) connects three phase mains.
2. the device that prevents the explosion-proof coolant pump motor overload operation in pharmaceutical factory according to claim 1, it is characterized in that: the model of described frequency converter (3) is CHRH-475DEE/4110DPE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203169389U CN201601653U (en) | 2009-12-10 | 2009-12-10 | Device for preventing pharmaceutical factory anti-explosion cooling pump motor from overload operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203169389U CN201601653U (en) | 2009-12-10 | 2009-12-10 | Device for preventing pharmaceutical factory anti-explosion cooling pump motor from overload operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201601653U true CN201601653U (en) | 2010-10-06 |
Family
ID=42812712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203169389U Expired - Lifetime CN201601653U (en) | 2009-12-10 | 2009-12-10 | Device for preventing pharmaceutical factory anti-explosion cooling pump motor from overload operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201601653U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104998743A (en) * | 2015-06-08 | 2015-10-28 | 于浩 | Refrigerating explosion-proof valve for hock-type refined all-purpose muller |
-
2009
- 2009-12-10 CN CN2009203169389U patent/CN201601653U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104998743A (en) * | 2015-06-08 | 2015-10-28 | 于浩 | Refrigerating explosion-proof valve for hock-type refined all-purpose muller |
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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: 20101006 |
|
| CX01 | Expiry of patent term |