CN210745037U

CN210745037U - Liquid resistor soft starting device

Info

Publication number: CN210745037U
Application number: CN201921460940.3U
Authority: CN
Inventors: 舒海峰
Original assignee: Hubei Jiechuang Electrical Technology Co ltd
Current assignee: Hubei Jiechuang Electrical Technology Co ltd
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-06-12
Anticipated expiration: 2029-09-04

Abstract

The utility model discloses a liquid resistance soft starting device in the technical field of electromechanical equipment, which comprises a starting box, an electrolyte regulating box is fixedly arranged in the liquid resistance box, a movable polar plate is connected in the electrolyte regulating box in a sliding way, a fixed polar plate is fixedly connected at the bottom of the electrolyte regulating box, a corrugated sealing pipe is fixedly connected at the top of the electrolyte regulating box, a pressing plate is fixedly connected at the top of the corrugated sealing pipe, a moving rod is fixedly connected at the top of the pressing plate, a sliding disc is fixedly connected at the top of the moving rod, a guide post is respectively and threadedly connected in the middle of the sliding disc, an adjusting lead screw is fixedly connected at the output end of a driving motor, a circulating pipe is communicated with the upper end and the lower end of the electrolyte regulating box, a cooling dispersion cylinder is arranged on a pipeline of the circulating pipe, a honeycomb dispersion pipeline, the utility model discloses it is sealed good, promote cooling rate, reduce the electrolyte temperature.

Description

Liquid resistor soft starting device

Technical Field

The utility model relates to an electromechanical device technical field specifically is a liquid resistance soft start device.

Background

In order to improve the starting performance of the large and medium wound-rotor asynchronous motor, a more popular method is to adopt a liquid resistance starter; the liquid resistor is serially connected into a motor rotor loop, and the resistance value is automatically adjusted in a stepless mode to be zero from big to small, so that the voltage reduction and impact-free smooth starting of the motor is realized. The commonly used liquid resistance starter is characterized in that specially prepared electrolyte is connected in a rotor loop of a winding motor in series to serve as a resistor, the resistance value of the series resistor always meets the requirement of mechanical characteristics of the motor on the series resistor value in the starting process by adjusting the concentration of the electrolyte and changing the distance between two polar plates, so that the motor can be uniformly accelerated and stably started under the condition of obtaining the maximum starting torque and the minimum starting current, and the rotor loop is short-circuited after the starting is finished to finish the starting of the motor. The liquid resistor is widely applied to soft start of a large high-voltage motor, and has the advantages of large capacity, high cost performance and the like, the traditional open-loop control and current closed-loop control are not ideal enough in control of current and rotating speed, the liquid resistor starting system of the company adopts speed and current double closed-loop control, the acceleration of the motor is well detected and controlled, the minimum starting current and the shortest starting time can be realized, the impact on a power grid is reduced to the minimum, the heat productivity of the motor is the minimum, the motor is well protected, and the electric energy is saved. But electrolyte needs sealed container to carry out the splendid attire, need set up the drive arrangement of plate electrode and plate electrode, the container is sealed badly with the external world, and the situation such as can make electrolyte appear leaking and volatilizing has been long for a long time, if the safety of cubical switchboard still can be influenced to the comparison of leaking more, produces short circuit and other accidents, and liquid resistance can sharply rise at the temperature in the use, and the temperature rises and can influence the start-up effect and the continuous start-up number of times of liquid resistance starter.

Based on this, the utility model designs a liquid resistance soft starting device to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a liquid resistance soft starting device to solve the electrolyte container that proposes in the above-mentioned background art and external sealing bad, long time can make electrolyte appear leaking and situations such as volatilize, if the safety of cubical switchboard still can be influenced to the comparison of leaking more, produce short circuit and other accidents, liquid resistance temperature can sharply rise in the use, the temperature rises and can influence the starting effect of liquid resistance starter and the problem of the number of times of starting in succession.

In order to achieve the above object, the utility model provides a following technical scheme:

a liquid resistor soft start device comprises a start box, wherein the start box comprises an air box and a liquid resistor box, an electrolyte regulating box is fixedly arranged in the liquid resistor box, a movable polar plate is connected in the electrolyte regulating box in a sliding manner, a fixed polar plate is fixedly connected at the bottom of the electrolyte regulating box, a corrugated sealing pipe is fixedly connected at the top of the electrolyte regulating box, a pressing plate is fixedly connected at the top of the corrugated sealing pipe, a movable polar plate is fixedly connected at the bottom of the pressing plate, a moving rod is fixedly connected at the top of the pressing plate, a sliding disc is fixedly connected at the top of the moving rod, a guide post is respectively in threaded connection with an adjusting lead screw in the middle of the sliding disc in a sliding manner, a driving motor is fixedly arranged at the top of the liquid resistor box, an adjusting lead screw is fixedly connected at the output, the cooling dispersion cylinder is arranged on a pipeline of the circulating pipe, a honeycomb dispersion pipeline is arranged inside the cooling dispersion cylinder, cooling liquid is filled inside the cooling dispersion cylinder, and the cooling liquid is cooled through the cooling assembly.

Preferably, the electrolyte adjusting box is a cylindrical sealing box, and the bottom of the pressing plate is fixedly connected with a movable polar plate through a push rod.

Preferably, the inner wall of the liquid resistance box is fixedly connected with an adapter plate, and the top of the adapter plate is respectively and rotatably connected with a guide post fixedly connected with an adjusting screw rod.

Preferably, the cooling assembly comprises a filter box and a cooling pump which are fixedly installed on the inner wall of the liquid resistance box, and the cooling assembly and the cooling dispersion cylinder are communicated through a cooling inlet pipe and a cooling outlet pipe to form a loop.

Preferably, the top of the starting box is fixedly provided with a heat dissipation fan, the middle of the starting box is provided with an interlayer, the middle of the interlayer is provided with a ventilation window, and the middle of the ventilation window is fixedly provided with a filter element.

Preferably, the side wall of the push rod is fixedly connected with a limiting ring, a spinning disk is rotatably connected to the lower portion of the limiting ring, and the spinning disk is located above the movable polar plate.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses it is rotatory that switch-on driving motor drives the regulation lead screw during use, drives and moves the polar plate and move down and change its and the distance between the top polar plate, realizes the smooth start of the motor step-down shock-free that is connected with it electricity. The sliding disc moves downwards to drive the pressing plate to move downwards, the corrugated sealing pipe is compressed at the moment, the movable polar plate moves downwards, the corrugated sealing pipe is connected with the electrolyte adjusting box in a sealing mode, the middle of the pressing plate does not penetrate through the transmission assembly, the electrolyte adjusting box is guaranteed to be well sealed, the electrolyte is prevented from being evaporated and overflowing or leaking, and meanwhile transmission is stable.

2. In the electrolyte use of electrolyte regulating box, circulate through the circulating pipe through the circulating pump, divide into a plurality of tributaries through the electrolyte reposition of redundant personnel in with the circulating pipe of cold cutting dispersion section of thick bamboo, flow out in the cooling dispersion section of thick bamboo that is full of the coolant liquid for the cooling, promote cooling rate, reduce electrolyte temperature, avoid influencing the start-up effect and the continuous start-up number of times of liquid resistance starter.

3. Through the switch-on heat dissipation fan, outside air blows in the starting box inside after the filter element in the ventilation window filters the dust, gives electric box and liquid resistance case heat dissipation, and electric box and liquid resistance case are separated, avoid the unexpected damage of electrolyte adjusting box to leak and initiate components and parts short circuit etc. in the electric box. After long-time use, need maintain reinforced etc. to electrolyte in the electrolyte regulating box, through switch-on driving motor, drive and move the polar plate and reciprocate, the vortex sheet reciprocates in liquid and triggers the rotation of vortex sheet, plays the stirring effect for the electrolyte dissolves.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the main view structure of the present invention;

FIG. 2 is a schematic view of a right view angle rotary sectional structure of the present invention;

fig. 3 is the utility model discloses a dive angle part cuts open structure schematic diagram.

In the drawings, the components represented by the respective reference numerals are listed below:

1-a starting box, 2-an electric box, 3-a liquid resistance box, 4-an electrolyte adjusting box, 5-a movable polar plate, 6-a corrugated sealing pipe, 7-a pressing plate, 8-a moving rod, 9-a sliding disc, 10-an adjusting screw rod, 11-a guide column, 12-a driving motor, 13-a circulating pipe, 14-a cooling dispersion cylinder, 15-a dispersion pipeline, 16-a push rod, 17-a transfer plate, 18-a cooling inlet pipe, 19-a cooling outlet pipe, 20-a heat dissipation fan, 21-a ventilation window, 22-a limiting ring and 23-a spinning disk.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

a liquid resistor soft start device comprises a start box 1, the start box 1 comprises an electric box 2 and a liquid resistor box 3, an electrolyte adjusting box 4 is fixedly installed in the liquid resistor box 3, a movable polar plate 5 is connected in the electrolyte adjusting box 4 in a sliding manner, a fixed polar plate is fixedly connected at the bottom of the electrolyte adjusting box 4, a corrugated sealing pipe 6 is fixedly connected at the top of the electrolyte adjusting box 4, a pressing plate 7 is fixedly connected at the top of the corrugated sealing pipe 6, a movable polar plate 5 is fixedly connected at the bottom of the pressing plate 7, a movable rod 8 is fixedly connected at the top of the pressing plate 7, a sliding disc 9 is fixedly connected at the top of the movable rod 8, an adjusting screw 10 is respectively in the middle of the sliding disc 9 and is in threaded connection with a guide post 11 in a sliding manner, a driving motor 12 is fixedly installed at the top of the liquid resistor box 3, an output, the pipeline of the circulating pipe 13 is provided with a cooling dispersion cylinder 14, a honeycomb dispersion pipeline 15 is arranged inside the cooling dispersion cylinder 14, the cooling dispersion cylinder 14 is filled with cooling liquid, and the cooling liquid is cooled by a cooling assembly.

Wherein, electrolyte adjusting box 4 is cylindrical seal box, and clamp plate 7 bottom is through push rod 16 fixedly connected with movable polar plate 5. The inner wall of the liquid resistance box 3 is fixedly connected with an adapter plate 17, and the top of the adapter plate 17 is respectively and rotatably connected with a guide column 11 fixedly connected with an adjusting screw rod 10. The cooling assembly comprises a filter box and a cooling pump which are fixedly arranged on the inner wall of the liquid resistance box 3, and the cooling assembly is communicated with the cooling dispersion cylinder 14 through a cooling inlet pipe 18 and a cooling outlet pipe 19 to form a loop. The top of the starting box 1 is fixedly provided with a heat dissipation fan 20, an interlayer is arranged in the middle of the starting box 1, a ventilation window 21 is arranged in the middle of the interlayer, and a filter element is fixedly arranged in the middle of the ventilation window 21. The side wall of the push rod 16 is fixedly connected with a limiting ring 22, a spinning disk 23 is rotatably connected below the limiting ring 22, and the spinning disk 23 is positioned above the movable polar plate 5.

One specific application of this embodiment is: the utility model discloses switch-on driving motor 12 drives and adjusts lead screw 10 rotation during the use, and the sliding plate 9 that drives threaded connection with it moves downwards, drives and moves polar plate 5 and move downwards and change its and the distance between the top polar plate, changes the volume of electrolyte between the two to make the resistance value change, realize the motor step-down of being connected with it and do not have the smooth start of impact. The sliding disc 9 moves downwards to drive the pressing plate 7 to move downwards, the corrugated sealing pipe 6 is compressed at the moment, the movable electrode plate 5 moves downwards, the corrugated sealing pipe 6 is connected with the electrolyte adjusting box 4 in a sealing mode, the middle of the pressing plate 7 does not penetrate through a transmission assembly, the electrolyte adjusting box 4 is guaranteed to be well sealed, the electrolyte is prevented from being evaporated and overflowing or leaking, and meanwhile transmission is stable.

In the 4 electrolyte use of electrolyte regulating box, circulate through circulating pipe 13 through the circulating pump, electrolyte reposition of redundant personnel in circulating pipe 13 is a plurality of tributaries through cold cutting dispersion cylinder 14, collect after the coolant liquid cooling of dispersion pipeline 15 outer wall and get into electrolyte regulating box 4, the electrolyte that the reposition of redundant personnel is a plurality of tributaries has increased the scattered liquid area, and flow out in the cooling dispersion cylinder 14 from being full of the coolant liquid, accelerate the cooling, promote cooling rate, reduce electrolyte temperature, avoid influencing the start-up effect and the continuous start-up number of times of liquid resistance starter. In the cooling process, the cooling liquid is filtered by the filter box, then is cooled by the cooling pump and is pumped to the cooling inlet pipe 18 to flow into the cooling dispersion cylinder 14, and then flows out through the cooling outlet pipe 19 to form a closed loop.

Through switch-on heat dissipation fan 20, outside air filters the dust through the rose core in the ventilation window 21 after, insufflates inside the starting box 1, gives electric box 2 and liquid resistance case 3 heat dissipation, and electric box 2 and liquid resistance case 3 are separated, avoid the unexpected damage of electrolyte adjusting box 4 to leak and cause components and parts short circuit etc. in the electric box 2. After long-time use, need maintain reinforced etc. to electrolyte in the electrolyte regulating box 4, through switch-on driving motor 12, drive dynamic polar plate 15 reciprocates, and the reciprocating of spinning disk 23 in liquid triggers the rotation of spinning disk, plays the stirring effect for the electrolyte dissolves.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a soft starting drive of liquid resistance, includes starting box (1), its characterized in that: the starting box (1) comprises an electric box (2) and a liquid resistance box (3), an electrolyte adjusting box (4) is fixedly installed in the liquid resistance box (3), a movable polar plate (5) is connected in the electrolyte adjusting box (4), a fixed polar plate is connected to the bottom of the electrolyte adjusting box (4), a corrugated sealing pipe (6) is fixedly connected to the top of the electrolyte adjusting box (4), a pressing plate (7) is fixedly connected to the top of the corrugated sealing pipe (6), a movable polar plate (5) is fixedly connected to the bottom of the pressing plate (7), a moving rod (8) is fixedly connected to the top of the pressing plate (7), a sliding disc (9) is fixedly connected to the top of the moving rod (8), an adjusting lead screw (10) is connected to the sliding column (11) in the middle of the sliding disc (9) in a threaded manner, and a driving motor (12) is fixedly installed at the top of the liquid resistance box, the output end of the driving motor (12) is fixedly connected with an adjusting screw rod (10), the upper end and the lower end of the electrolyte adjusting box (4) are communicated with circulating pipes (13), cooling dispersion cylinders (14) are arranged on pipelines of the circulating pipes (13), cellular dispersion pipelines (15) are arranged inside the cooling dispersion cylinders (14), cooling liquid is filled inside the cooling dispersion cylinders (14), and the cooling liquid is cooled through a cooling assembly.

2. The liquid resistor soft start device as claimed in claim 1, wherein: the electrolyte adjusting box (4) is a cylindrical sealing box, and the bottom of the pressing plate (7) is fixedly connected with a movable polar plate (5) through a push rod (16).

3. The liquid resistor soft start device as claimed in claim 1, wherein: the inner wall of the liquid resistance box (3) is fixedly connected with an adapter plate (17), and the top of the adapter plate (17) is respectively and rotatably connected with an adjusting screw rod (10) and a guide post (11).

4. The liquid resistor soft start device as claimed in claim 1, wherein: the cooling assembly comprises a filter box and a cooling pump which are fixedly installed on the inner wall of the liquid resistance box (3), and the cooling assembly and the cooling dispersion cylinder (14) are communicated through a cooling inlet pipe (18) and a cooling outlet pipe (19) to form a loop.

5. The liquid resistor soft start device as claimed in claim 1, wherein: the radiator fan (20) is fixedly installed at the top of the starting box (1), an interlayer is arranged in the middle of the starting box (1), a ventilating window (21) is arranged in the middle of the interlayer, and a filter element is fixedly installed in the middle of the ventilating window (21).

6. A liquid resistance soft start device as defined in claim 2 wherein: push rod (16) lateral wall fixedly connected with spacing collar (22), spacing collar (22) below is rotated and is connected with spinning disk (23), spinning disk (23) are located and move polar plate (5) top.