CN203883637U - Automatic control box for drying of asynchronous motor - Google Patents
Automatic control box for drying of asynchronous motor Download PDFInfo
- Publication number
- CN203883637U CN203883637U CN201320805301.2U CN201320805301U CN203883637U CN 203883637 U CN203883637 U CN 203883637U CN 201320805301 U CN201320805301 U CN 201320805301U CN 203883637 U CN203883637 U CN 203883637U
- Authority
- CN
- China
- Prior art keywords
- contactor
- switch
- automatic
- control
- control box
- 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
Links
- 238000001035 drying Methods 0.000 title abstract description 8
- 238000003032 molecular docking Methods 0.000 claims description 27
- 238000005485 electric heating Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract 1
- 238000004804 winding Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004093 laser heating Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
The utility model discloses an automatic control box for the drying of an asynchronous motor, and the control box is provided with a heating main circuit and an automatic temperature control circuit. The main circuit is provided with direct-current external terminals which are respectively connected with two pairs of contacts of an overload protection switch and a contactor. The other ends of the contacts of the contactor are respectively connected with a direct-current output terminal. The control circuit is that alternating-current external input ends are connected with a control power switch; one end of the control power switch is sequentially connected with a stop switch and an automatic/manual switch; the other end of the automatic/manual switch is connected with a starting button of the contactor; the other end of the starting button of the contactor is connected with a stopping button of the contactor; one end of a switch of three series temperature controllers is connected with one end of a control coil of the contactor; the other end of the control coil of the contactor is connected with the other end of the control power switch; and the three series temperature controllers are externally connected with an external temperature sensor. The control box is suitable for automatic control equipment for the drying of an asynchronous motor coil on a construction site, can effectively improve the quality and safety of the drying of the motor, and saves manpower and financial resources, reduces the energy consumption, and is simple and easy to use.
Description
Technical field
The utility model belongs to motor drying equipment, particularly the dry automatic control box of a kind of asynchronous machine.
Background technology
In modern industrial plant, the use of motor is very vast, but due to factors such as the environment of job site, durations, motor coil may run into the phenomenon of making moist, thereby reduces electrical machine insulation resistance; If be not dried, can produce the accidents such as coil punctures, cause motor to scrap.
Summary of the invention
Technical problem to be solved in the utility model is: provide a kind of asynchronous machine to be dried automatic control box.As the dry automatic control equipment of job site asynchronous machine.
The technical solution of the utility model is:
Asynchronous machine is dried an automatic control box, it is characterized in that: in control cabinet, have dry electric heating main circuit and automatic temp. controlling circuit;
Dry electric heating main circuit has: have two external input terminals of DC power supply, two DC power supply external terminals connect respectively one end of two docking points of overcurrent protection switch, the two docking point other ends of overcurrent protection switch connect respectively one end of two docking points of contactor, and the other end of two docking points of contactor connects respectively DC output end;
Automatic temp. controlling circuit is: have two external input terminals of AC power, two external input terminals of AC power connect respectively one end of two docking points of controlling mains switch, one end wherein of the other end of two docking points of control mains switch connects emergency stop switch, the emergency stop switch other end connects automatic/hand switch, the manual end of the other end of automatic/hand switch connects Contactor Starting button, Contactor Starting button other end contactor stop button, the automatic end of the contactor stop button other end and the other end of automatic/hand switch is connected one end of switch of the temperature controller of three series connection, one end of the other end contactor control coil of the switch of the temperature controller of three series connection of connection, the other end of contactor control coil connects the other end wherein of the other end of two docking points of controlling mains switch, the temperature controller of three series connection outwards connects respectively external temperature sensor.
The two docking point other ends of the overcurrent protection switch in dry electric heating main circuit connect respectively contactor two docking points one end wherein in a circuit, by shunt, connect ammeter.
The two ends indicator light in parallel of the contactor control coil in automatic temp. controlling circuit.
The utility model is applicable to the desiccant automatic control equipment of the on-the-spot asynchronous machine coil of construction work, and quality and the fail safe that can effectively improve motor drying, save manpower, financial resources and energy resource consumption, simple and easy to do.
Accompanying drawing explanation
Fig. 1 is the electrical schematic diagram of the dry automatic control box of asynchronous machine.
In figure: F1 overcurrent protection switch, V3 ammeter, KM1 contactor, L1(is heated dry) motor coil, Q1 control switch, the switch on S3 temperature controller, R1 temperature sensor, R2 temperature sensor, R3 temperature sensor on switch S 2 temperature controllers on mains switch, S7 emergency stop switch, the manual/auto switch of S6, S4 Contactor Starting switch, S5 contactor shutdown switch, H10 indicator light, UI temperature controller, U2 temperature controller, U3 temperature controller, S1 temperature controller.
Embodiment
As shown in the figure: a kind of asynchronous machine is dried automatic control box, in control cabinet, there are dry electric heating main circuit and automatic temp. controlling circuit; As shown in the figure:
Dry electric heating main circuit has: have two external input terminals of DC power supply, two DC power supply external terminals connect respectively one end of two docking points of overcurrent protection switch, the two docking point other ends of overcurrent protection switch connect respectively one end of two docking points of contactor, and the other end of two docking points of contactor connects respectively DC output end;
Automatic temp. controlling circuit is: have two external input terminals of AC power, two external input terminals of AC power connect respectively one end of two docking points of controlling mains switch, one end wherein of the other end of two docking points of control mains switch connects emergency stop switch, the emergency stop switch other end connects automatic/hand switch, the manual end of the other end of automatic/hand switch connects Contactor Starting button, Contactor Starting button other end contactor stop button, the automatic end of the contactor stop button other end and the other end of automatic/hand switch is connected one end of switch of the temperature controller of three series connection, one end of the other end contactor control coil of the switch of the temperature controller of three series connection of connection, the other end of contactor control coil connects the other end wherein of the other end of two docking points of controlling mains switch, the temperature controller of three series connection outwards connects respectively external temperature sensor.
The two docking point other ends of the overcurrent protection switch in dry electric heating main circuit connect respectively contactor two docking points one end wherein in a circuit, by shunt, connect ammeter.
The two ends indicator light in parallel of the contactor control coil in automatic temp. controlling circuit.
Motor drying has various ways, and the safest and the simplest method, for selecting DC power supply as the dry energy, selects the DC welder of different model as dry power supply according to power of motor difference.
Adopt 3 temperature sensor continuous measurements, thermostat, the elements such as contactor are controlled DC power supply, and electric current passes into direct current should not surpass 70% of winding rated current.Make coil of stator of motor surface temperature be no more than 85 ℃, stator core temperature is no more than 90 ℃, can guarantee motor safety, again can energy savings.
Using method of the present utility model is:
The DC power supply switch F1 that the output direct current of DC welder is connected on to control cabinet is upper, and provides 200VAC to control power supply to control cabinet, is connected on Q1.According to motor, whether configure winding temperature element (thermal resistance R2, R3, R4, if being furnished with temperature detecting resistance, motor just directly utilizes, if it's not true, in the upper of motor housing, with hexagonal angle direction, stick 3 thermal resistances and carry out heat insulation work, this is suitably to reduce temperature switch design temperature, be generally 7--10 ℃), motor coil winding is together in series and is connected on control cabinet KM1 output.Manual or the Automatic-heating mode by S6 selector switch.Selection manually boots the heating that can complete one-period, operating procedure is for screwing out emergency stop switch S7, press start button S4, now KM1 adhesive, run indicator H10 lights, motor coil L 1 passes into direct current, observe ammeter V3, regulate the electric current of DC power supply to start from scratch to large adjusting, generally be no more than the 50%--70% of motor winding rated current, start heater coil, when motor coil reaches temperature switch design temperature (50 ℃---70 ℃), temperature switch (S1, S2, S3) disconnects, and heating stops.Can laser heating under auto state, when being heated to design temperature, automatically disconnect DC power supply, temperature drops to design temperature again can automatic pick KM1 when following, continues to heat.Thereby realize the object of automatic drying.
Claims (3)
1. the dry automatic control box of asynchronous machine, is characterized in that: in control cabinet, have dry electric heating main circuit and automatic temp. controlling circuit;
Dry electric heating main circuit has: have two external input terminals of DC power supply, two DC power supply external terminals connect respectively one end of two docking points of overcurrent protection switch, the two docking point other ends of overcurrent protection switch connect respectively one end of two docking points of contactor, and the other end of two docking points of contactor connects respectively DC output end;
Automatic temp. controlling circuit is: have two external input terminals of AC power, two external input terminals of AC power connect respectively one end of two docking points of controlling mains switch, one end wherein of controlling two docking points of mains switch connects emergency stop switch, the emergency stop switch other end connects automatic/hand switch, the manual end of the other end of automatic/hand switch connects Contactor Starting button, Contactor Starting button other end contactor stop button, the automatic end of the contactor stop button other end and the other end of automatic/hand switch is connected one end of switch and one end of contactor control coil of the temperature controller of three series connection, the other end of contactor control coil connects the other end of two docking points of controlling mains switch, the temperature controller of three series connection outwards connects respectively external temperature sensor.
2. the dry automatic control box of asynchronous machine according to claim 1, is characterized in that: in the circuit that the two docking point other ends of described overcurrent protection switch and one end of two docking points of contactor are connected, by shunt, be connected with ammeter.
3. the dry automatic control box of asynchronous machine according to claim 1, is characterized in that: the two ends indicator light in parallel of the contactor control coil in described automatic temp. controlling circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320805301.2U CN203883637U (en) | 2013-12-06 | 2013-12-06 | Automatic control box for drying of asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320805301.2U CN203883637U (en) | 2013-12-06 | 2013-12-06 | Automatic control box for drying of asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203883637U true CN203883637U (en) | 2014-10-15 |
Family
ID=51684102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320805301.2U Expired - Lifetime CN203883637U (en) | 2013-12-06 | 2013-12-06 | Automatic control box for drying of asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203883637U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108539938A (en) * | 2018-04-23 | 2018-09-14 | 中船黄埔文冲船舶有限公司 | A kind of method that large-size machine insulation performance is improved at scene |
-
2013
- 2013-12-06 CN CN201320805301.2U patent/CN203883637U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108539938A (en) * | 2018-04-23 | 2018-09-14 | 中船黄埔文冲船舶有限公司 | A kind of method that large-size machine insulation performance is improved at scene |
| CN108539938B (en) * | 2018-04-23 | 2020-09-04 | 中船黄埔文冲船舶有限公司 | Method for improving insulating property of large motor on site |
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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: 20141015 |
|
| CX01 | Expiry of patent term |