CN2129962Y - Water resistor - Google Patents
Water resistor Download PDFInfo
- Publication number
- CN2129962Y CN2129962Y CN 92219039 CN92219039U CN2129962Y CN 2129962 Y CN2129962 Y CN 2129962Y CN 92219039 CN92219039 CN 92219039 CN 92219039 U CN92219039 U CN 92219039U CN 2129962 Y CN2129962 Y CN 2129962Y
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- CN
- China
- Prior art keywords
- water tank
- interpole
- water
- utmost point
- star
- 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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Abstract
The utility model discloses a water resistor, belonging to the technical field of liquid resistors. The water resistor comprises a water tank (12), a water tank cover (13), an insulating cylinder (14) which is arranged in the water tank (12), a star pole (16) which is arranged in the insulating cylinder (14), a first middle pole (25), a second middle pole (26), a connecting pole (17) and a star point (11) which is composed of the star pole (16) using a conducting wire. Three contactors (8), (9) and (10) are arranged among the star pole (16), the first middle pole (25), the second middle pole (26) and the connecting pole (17) in parallel, and the three contactors can be used on the velocity modulation of the triphase phase-wound rotor asynchronous motor.
Description
The utility model belongs to the liquid resistor technical field, is applicable to the speed adjusting technique field of three-phase phase-wound rotor asynchronous motor.
Existing water resistor is used in the startup of three-phase phase-wound rotor asynchronous motor, it comprises water tank, be placed on the tank lid on this water tank upper surface, in the inner chamber of this water tank, be placed with one group of evenly distributed insulating cylinder, on the bottom surface of insulating cylinder, be provided with the connection utmost point, inner chamber upper position at insulating cylinder is provided with the star utmost point, and this star utmost point is drawn by lead and formed asterism, installs one at star above extremely and makes its level and smooth device that moves downwards.When just starting, rotor inline resistance maximum, motor speed minimum, along with moving down of star dead smooth, what rotor inline resistance was level and smooth reduces, the rising that motor speed is level and smooth, when the star utmost point moved to the connection utmost point, rotor is series resistance not, the motor full speed running.This water resistor, owing to the star utmost point smoothly moves down, the intermediate speed that in its moving process, can not obtain to fix, thereby it can not be applicable in the speed governing of three-phase phase-wound rotor asynchronous motor.
The purpose of this utility model is a kind of water resistor that is applicable to three-phase phase-wound rotor induction motor drive of design.
The utility model comprises water tank, be placed on the tank lid on this water tank upper surface, bottom in this water tank one side is provided with tapping valve, in the inner chamber of this water tank, be placed with one group of evenly distributed insulating cylinder, on the bottom surface of insulating cylinder, be provided with the connection utmost point, inner chamber upper position at insulating cylinder is provided with the star utmost point, this star utmost point is drawn by lead and is formed asterism, in water tank and insulating cylinder, fill electrolyte solution, it is characterized in that also being provided with first interpole and second interpole below the star utmost point in insulating cylinder, a contactor in parallel between the star utmost point and first interpole, a contactor in parallel between first interpole and second interpole, second interpole be connected a contactor in parallel between the utmost point, these three contactors are placed on the outside of water tank.
When three contactors all disconnect, the water resistance resistance maximum of rotor inline, motor speed is minimum, when closed one of contactor, the water resistance resistance of rotor inline reduces, motor speed is elevated to a certain numerical value, and when closed two of contactor, the water resistance resistance of rotor inline further reduces, motor speed is elevated to another numerical value, after three whole closures of contactor, the water resistance resistance of rotor inline is zero, the motor full speed running.The water tank of this water resistor and tank lid adopt resistant material to make, and insulating cylinder and electrolyte solution are airtight by water tank and tank lid, thus can be at high humidity, have in the environment of chemical substance corrosion and work.Because the concentration of the electrolyte solution that fills in the water tank of this water resistor and the insulating cylinder is regulated easily, thereby its resistance also regulates easily, thereby can be used for the speed governing of the motor of different capacity.Therefore this water resistor can be widely used in the speed governing of three-phase phase-wound rotor asynchronous motor.
Accompanying drawing shows structure chart of the present utility model and circuit diagram thereof, wherein
Fig. 1 is the section of structure of water resistor;
Fig. 2 is the circuit diagram that water resistor is applied to the speed governing of three-phase phase-wound rotor asynchronous motor;
Fig. 3 is the section of structure of Fig. 1 star utmost point (16), first interpole (25), second interpole (26);
Fig. 4 is the structural representation that Fig. 1 connects the utmost point (17);
Fig. 5 is the water resistor cutaway view that is provided with heat exchanger.
Embodiment 1
The utility model comprises water tank (12), be placed on the tank lid (13) on this water tank (12) upper surface, be provided with tapping valve (15) in the bottom of these water tank (12) one sides, in the inner chamber of this water tank (12), be placed with evenly distributed one group of insulating cylinder (14), on the bottom surface of insulating cylinder (14), be provided with and connect the utmost point (17), inner chamber upper position at insulating cylinder (14) is provided with the star utmost point (16), this star utmost point (16) is drawn by lead and is formed asterism (11), in water tank (12) and insulating cylinder (14), fill electrolyte solution (18), it is characterized in that the star utmost point (16) below in insulating cylinder (14) also is provided with first interpole (25) and second interpole (26), a contactor in parallel (8) between the star utmost point (16) and first interpole (25), a contactor in parallel (9) between first interpole (25) and second interpole (26), second interpole (26) be connected a contactor in parallel (10) between the utmost point (17), these three contactors (8), (9), (10) be placed on the outside of water tank (12).The lead-out wire (4) that connects the utmost point (17) is connected on the rotor (3) of three-phase phase-wound rotor asynchronous motor, is motor stator (2) in the periphery of this rotor (3), is connected to three-phase power line (1) on this stator (2).Resistance (5) is the equivalent resistance of the star utmost point (16) to first interpole (25) section water resistance, resistance (6) is the equivalent resistance of first interpole (25) to second interpole (26) section water resistance, and resistance (7) is that second interpole (26) is to the equivalent resistance that connects the utmost point (17) section water resistance.The structure of the star utmost point (16), first interpole (25), second interpole (26) is identical, comprise stainless steel (or cast iron) cross (28), go up concentric stainless steel (or cast iron) band (27) that the welding radius does not wait at this cross (28), on of this stainless steel (or cast iron) band (27), be connected with the lead (29) of making sheath with plastics (or rubber).Connect the utmost point (17) and comprise middle stainless steel (or cast iron) sheet (32) that screw hole is arranged, upper and lower faces at this stainless steel (or cast iron) sheet (32) respectively has a stainless steel (or cast iron) pad (31), in the middle of this stainless steel (or cast iron) sheet (32), be provided with stainless steel (or cast iron) double-screw bolt (33) that cooperates with its screw hole, stainless steel (or cast iron) nut (30) that cooperates with this double-screw bolt (33).Electrolyte solution (18) is meant the aqueous solution of sodium chloride (or sodium carbonate, sodium acid carbonate).
When three contactors (8), (9), when (10) all disconnecting, the water resistance resistance maximum of rotor (3) series connection, be resistance (5), (6), (7) sum, motor speed is minimum, when a contactor (8) is closed, the water resistance resistance of rotor (3) series connection reduces, be resistance (6), (7) sum, motor speed is elevated to certain numerical value, when two contactors (8), when (9) closed, the water resistance resistance of rotor (3) series connection further is reduced to resistance (7), motor speed is elevated to another numerical value, when three contactors (8), (9), (10) after whole closures, the water resistance resistance of rotor (3) series connection is zero, the motor full speed running.The utility model can also be provided with more interpole, contactor, motor is worked under more rotating speed, connect the utmost point (17) and enlarged the contact area of rotor (3) lead-out wire (4) with electrolyte solution (18), reduced the contact resistance of lead-out wire (4) with electrolyte solution (18), the setting of water tank tegillum (19), made things convenient for to water tank (12) and added electrolyte solution (18), water tank (12), tank lid (13), water tank tegillum (19), insulating cylinder (14) adopts plastics (or enamel, iron plate brush antirust paint) makes, connect the utmost point (17) and water tank (12) and insulating cylinder (14) insulation.Thereby the utility model adapts at high humidity, work in the environment that has chemical substance to corrode, the concentration that fills electrolyte solution (18) in water tank (12) and the insulating cylinder (14) is identical, the liquid level that fills electrolyte solution (18) in the water tank (12) is higher than the height of insulating cylinder (14), because the concentration of electrolyte solution (18) is regulated easily, thereby the resistance of water resistor also regulates easily, thereby can be used in the speed governing of motor of different capacity.Therefore, this water resistor can be widely used in the speed governing of three-phase phase-wound rotor asynchronous motor.
Liquid level gauge (24) is equipped with in a side at embodiment 1 described water tank (12).This liquid level gauge (24) comprises measuring tube (39), the upper conduit (21) that is connected with measuring tube (39) top, the other end of upper conduit (21) is connected with the last interface (20) of water tank (12), with the downcomer (23) that measuring tube (39) bottom is connected, the other end of downcomer (23) is connected with the lower interface (22) of water tank (12).Measuring tube (39), upper conduit (21), downcomer (23) are made of glass (or plastics, rubber).By this liquid level gauge (24), can observe the liquid level in the water tank (12), can guarantee the liquid level in water tank (12) and the insulating cylinder (14), the speed governing of motor is normally carried out.Other are with described in the embodiment 1.
At embodiment 2 described water tank (12) inner chambers a heat exchanger (34) is set also.It comprises helix tube (36), the last straight tube (37) that is connected with this helix tube (36) upper end, the lower straighttube (38) that is connected with this helix tube (36) lower end is at helix tube (36), water is flowing to go up between the pipe of straight tube (37) and lower straighttube (38) (35).Helix tube (36), go up straight tube (37) and lower straighttube (38) and make, the mode that (or flange connection) welded in employing that is connected of helix tube (36) and last straight tube (37), helix tube (36) and lower straighttube (38) of carbon steel galvanized pipe (or copper pipe, carbon steel pipe).Last straight tube (37), lower straighttube (38) are guided to the outside of water tank (12) by the opening of water tank (12).The also available carbon steel galvanized pipe of this heat exchanger (34) (or copper pipe, carbon steel pipe) is made.When electrolyte solution (18) when temperature is higher, what flowed (35) between pipe is the lower water of temperature, when electrolyte solution (18) temperature is low, what flowed (35) between pipe is the higher water of temperature, thereby guarantee that electrolyte solution (18) is not overheated, non-crystallizable, do not freeze, make the speed governing of motor be able to normal operation.Other are described with embodiment 1, embodiment 2.
Claims (3)
1, a kind of water resistor, comprise water tank (12), be placed on the tank lid (13) on this water tank (12) upper surface, be provided with tapping valve (15) in the bottom of these water tank (12) one sides, in the inner chamber of this water tank (12), be placed with evenly distributed one group of insulating cylinder (14), on the bottom surface of insulating cylinder (14), be provided with and connect the utmost point (17), inner chamber upper position at insulating cylinder (14) is provided with the star utmost point (16), this star utmost point (16) is drawn by lead and is formed asterism (11), in water tank (12) and insulating cylinder (14), fill electrolyte solution (18), it is characterized in that the star utmost point (16) below in insulating cylinder (14) also is provided with first interpole (25) and second interpole (26), a contactor in parallel (8) between asterism (11) and first interpole (25), a contactor in parallel (9) between first interpole (25) and second interpole (26), second interpole (26) be connected a contactor in parallel (10) between the utmost point (17), these three contactors (8), (9), (10) be placed on the outside of water tank (12).
2, water resistor according to claim 1 is characterized in that in a side of water tank (12) liquid level gauge (24) being housed.
3, water resistor according to claim 1 is characterized in that at water tank (12) inner chamber a heat exchanger (34) being set also.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92219039 CN2129962Y (en) | 1992-06-04 | 1992-06-04 | Water resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92219039 CN2129962Y (en) | 1992-06-04 | 1992-06-04 | Water resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2129962Y true CN2129962Y (en) | 1993-04-14 |
Family
ID=33766394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92219039 Expired - Fee Related CN2129962Y (en) | 1992-06-04 | 1992-06-04 | Water resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2129962Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103077793A (en) * | 2013-01-28 | 2013-05-01 | 湖北鼎鼎电气有限公司 | Antifreezing resistance liquid |
| CN103413643A (en) * | 2013-08-26 | 2013-11-27 | 四川永星电子有限公司 | Parallel double-winding resistor |
| CN105903544A (en) * | 2016-04-28 | 2016-08-31 | 韦国思 | Coal mill water resistor polar plate guide structure |
-
1992
- 1992-06-04 CN CN 92219039 patent/CN2129962Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103077793A (en) * | 2013-01-28 | 2013-05-01 | 湖北鼎鼎电气有限公司 | Antifreezing resistance liquid |
| CN103413643A (en) * | 2013-08-26 | 2013-11-27 | 四川永星电子有限公司 | Parallel double-winding resistor |
| CN103413643B (en) * | 2013-08-26 | 2015-12-09 | 四川永星电子有限公司 | A kind of pinacoid coiling resistor |
| CN105903544A (en) * | 2016-04-28 | 2016-08-31 | 韦国思 | Coal mill water resistor polar plate guide structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| RR01 | Reinstatement of patent right |
Former decision: Termination of patent right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |