CN212882215U - Coil structure of electromagnetic stirrer - Google Patents

Abstract

The utility model discloses an electromagnetic stirrer coil structure, its coil only forms with the winding of a surface insulation's hollow metal tube, all be equipped with the cooling mouth of a river on coil both ends and the winding route. The coil is arched outwards at intervals of a set length along the winding path to form elbows, and the elbows are respectively connected with the corresponding cooling water ports. The utility model discloses effectually saved raw and other materials, made processing become very simple, do not need special machinery to process, only need the manual work to operate, labour saving and time saving, economic benefits is showing.

Description

Coil structure of electromagnetic stirrer

Technical Field

The utility model relates to an electromagnetic stirrer coil structure especially relates to an electromagnetic stirrer coil structure.

Background

The electromagnetic stirrer can make up the defects of manual stirring and mechanical stirring, effectively shortens the smelting time, saves the energy consumption, ensures that the chemical components and the temperature of the melt are uniform, greatly improves the quality of the alloy, and is widely applied to the metal industry. The electromagnetic stirrer coil is an important component of the electromagnetic stirrer, so the design of the electromagnetic stirrer coil is always the key point for designing the electromagnetic stirrer. The common electromagnetic stirrer coil adopts a coil-superposed structure, namely, single insulating hollow metal pipes are respectively wound into single-layer coils, and then the single-layer coils are superposed together. In addition, the stirrer coils are close to the furnace and the ambient temperature is always high, so that the coils need to be cooled by necessary measures. At present, the reliable structure is that cooling water is introduced into the hollow coil of the stirrer for cooling. If the water inlet and outlet pipes are directly mounted on the stacked coils, the fastening and the clearance of the coils are affected, so that a bend capable of mounting the water inlet and outlet pipes needs to be reserved at the outer end of the coils. The ends of each layer of coils are generally gathered together as cooling water ports. However, the stacked structure of the coils and the cooling water gap with concentrated tail end have the following disadvantages:

1. the method for insulating the hollow metal tube is to wind a layer of glass ribbon and then to coat a layer of insulating paint. Winding the ribbon of glass filaments is most complicated at the beginning and end. When the structure of overlapping coils is adopted, a plurality of hollow metal pipes are used, and the labor and time are increased when a plurality of hollow metal pipes are used.

2. When the head end concentrated cooling water gap is adopted, the coil needs to be led out to be longer, so that unnecessary waste is caused to raw materials; there is a certain difficulty in processing. The existing manual processing cannot ensure the uniformity of size processing; in addition, the occupied space is large, and the surrounding is greatly influenced; when the stirrer stirs, the elbow connected with the cooling water port is easily broken or damaged due to fatigue because the electromagnetic force has large shaking force on the elbow.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that an electromagnetic stirrer coil structure is provided for solve the problem that electromagnetic stirrer coil material utilization rate is low among the prior art.

In order to solve the above problem, the utility model adopts the following technical scheme:

the coil structure of the electromagnetic stirrer is characterized in that a coil of the electromagnetic stirrer is formed by winding a hollow metal tube with an insulated surface, and cooling water openings are formed between two ends of the coil and two ends of the coil.

Furthermore, the coil is arched outwards at intervals of a set length along the winding path to form elbows, the elbows are respectively connected with corresponding cooling water ports, and holes are formed in the elbows at positions corresponding to the cooling water ports.

Further, the cooling water gap is a part of a circuit for supplying power to the coil by the electromagnetic stirrer, and an insulating layer is coated outside the cooling water gap.

Furthermore, the elbow is in the shape of an isosceles triangle, and the corner part of the elbow is a round angle.

Furthermore, the vertex angle of the isosceles triangle is 60-120 degrees.

Furthermore, the radius of the fillet is 2-2.5 times of the diameter of the cross section of the coil.

Furthermore, the cooling water gap is made of the same material as the coil.

The utility model discloses an actively the effect does:

the utility model discloses on coil winding structure, adopt single hollow metal tube to twine repeatedly, avoided when being insulation treatment to many hollow metal tubes, start the manpower that leads to the fact with the end and waste in time. Simultaneously the utility model discloses compare in prior art and adopted the parallelly connected mode of many individual layer coils effectual raw and other materials of having saved, make processing become very simple, do not need special machinery to process, only need the manual work to operate, labour saving and time saving, economic benefits is showing.

The utility model discloses the head end and the end of coil are compared and are adopted many parallelly connected structure sizes of individual layer coil littleer among the prior art to avoided rocking of agitator during operation electromagnetic force to its influence that causes, can not lead to its dielectric breakdown and rupture.

Elbows connected with cooling water ports are led out at intervals of set length of the coil, so that the coil can be effectively cooled through the inlet and outlet circulation of cooling water; the cooling water gap and the coil are made of the same material, so that the two materials are combined more easily.

The fillet on the elbow prevents that the elbow position of turning round from producing too big stress, also guarantees simultaneously that the flow of cooling water is smooth and easy.

Drawings

FIG. 1 is a front view of a prior art electromagnetic stirrer coil;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a front view of the electromagnetic stirrer coil of the present invention;

FIG. 4 is a side view of FIG. 3;

in the figure, 1, coil; 2. a cooling water port; 3. and (4) bending the pipe.

Detailed Description

As shown in fig. 1 and 2, the conventional electromagnetic stirrer coil adopts a structure in which coils 1 are stacked, that is, a single insulating hollow metal tube is wound to form a single-layer coil 1, and then the single-layer coils 1 are stacked together. The coils 1 marked with the same letters in fig. 1 are the same set of coils 1. The head ends of the coils 1 of each single layer are gathered together and then connected with the cooling water port 2, the tail ends of the coils are gathered together and then connected with the other cooling water port 2, and cooling water flows in the coils 1 through the two cooling water ports 2 to cool the coils 1. The head end and the tail end of each group of coils 1 need to be prolonged and are connected with the cooling water gap 2 in a centralized manner.

As shown in fig. 3 and 4, an electromagnetic stirrer coil structure is formed by winding a hollow metal pipe with an insulated surface, cooling water ports 2 are welded to two ends of the coil 1 respectively, and the coil 1 is further provided with the cooling water ports 2 along a winding path thereof. Because only one hollow metal tube is adopted for winding, the manufacturing process of the coil 1 is simple, the waste of materials is reduced, and meanwhile, the waste of manpower and time caused by starting and ending when a plurality of hollow metal tubes are insulated is avoided.

The coil 1 is arched outwards at intervals of a set length to form an elbow 3, the top of the elbow 3 is provided with a hole, the cooling water port 2 is arranged on the elbow 3 at a position corresponding to the hole, and the elbow 3 is welded with the cooling water port 2. The set length is determined according to the power of the electromagnetic stirrer, so that the power requirement of the electromagnetic heater can be met, and the heat dissipation requirement of the coil 1 can be met. The cooling water gap 2 is a part of a circuit for supplying power to the coil 1 by an electromagnetic stirrer, and an insulating layer is coated outside the cooling water gap 2. The shape of the elbow 3 is an isosceles triangle, and the corner part of the elbow 3 is a fillet. The vertex angle of the isosceles triangle is 60-120 degrees. The fillet radius is 2-2.5 times of the diameter of the cross section of the coil 1. Cooling water flows into and out of the coil 1 through cooling water ports 2 distributed at and between both ends of the coil 1, and flows inside the coil 1 to cool the coil 1. The elbow 3 has simple manufacturing process and convenient connection with the cooling water port 2, and the fillet on the elbow 3 prevents the elbow 3 from bending to generate overlarge stress and simultaneously ensures the smooth flow of cooling water.

The cooling water gap is made of the same material as the coil, so that the cooling water gap and the coil are easier to weld.

The utility model discloses an implement only to the description that the preferred embodiment of the utility model goes on, not to restricting novel design and scope, under the prerequisite that does not deviate from the design idea of the utility model, the engineering technical staff in this field is right the various deformation and the improvement that the technical scheme of the utility model made all should fall into the protection scope of the utility model, the content of the utility model request protection has all been recorded in the claim.

Claims (6)

1. A coil structure of an electromagnetic stirrer is characterized in that a coil (1) of the electromagnetic stirrer is formed by winding a hollow metal pipe with an insulated surface, and cooling water gaps (2) are arranged between two ends of the coil (1) and two ends of the coil (1);

the coil (1) is arched outwards at set lengths at intervals along a winding path to form elbows (3), the elbows (3) are respectively connected with corresponding cooling water ports (2), and holes are formed in the elbows (3) at positions corresponding to the cooling water ports (2).

2. An electromagnetic stirrer coil structure according to claim 1, characterized in that the cooling water gap (2) is part of the circuit for supplying power to the coil (1) of the electromagnetic stirrer, and the outside of the cooling water gap (2) is covered with an insulating layer.

3. An electromagnetic stirrer coil structure according to claim 1 wherein the elbow (3) is shaped as an isosceles triangle and the corner portions of the elbow (3) are rounded.

4. An electromagnetic stirrer coil structure according to claim 3 wherein the isosceles triangle apex angle is 60 to 120 degrees.

5. An electromagnetic stirrer coil structure according to claim 3 wherein the fillet radius is 2 to 2.5 times the coil (1) cross-sectional diameter.

6. An electromagnetic stirrer coil structure according to claim 1 wherein the cooling water gap (2) is of the same material as the coil (1).

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