CN200983313Y - Non crystal ironic core energy-saving and capacity-adjusting transformer special for oil withdrawer - Google Patents

Abstract

An amorphous core energy-saving regulated capacity transformer is specially used for beam pumping units. The utility model essentially solves the problems that the existing regulated capacity transformer regulates the capacity with the switch of regulating capacity, thereby the regulated capacity transformer has high production costs, complicated usage and maintenance, and is difficult to use widely. The utility model is characterized in that an iron core (7) of the transformer comprises four separate rectangular reel iron cores (11) which form the three phase five limb structure, wherein the reel iron cores (11) are joint through lap iron yokes (12). The capacity of the amorphous core energy-saving regulated capacity transformer which is specially used for beam pumping units can vary with the automatic increase and decrease of the load current, and cancel the switch of regulating capacity, thereby the production costs of the regulated capacity transformer are reduced and the requirements of startup under heavy load and variable load operation of the beam pumping units are met.

Description

The special-purpose amorphous iron core variable capacitance and energy-saving transformer of oil pumper

Technical field:

The utility model relates to a kind of device that is used for transmission of electric energy on the oil field, especially relates to a kind of variable capacitance and energy-saving transformer that is used on the oil pumper.

Background technology:

In the distribution of oil field,, often adopt big capacity distribution transformer in order to satisfy the oil pumper operating characteristic, its matching way is traditional low load with strong power form, and load factor is generally about 30%, and equipment capacity and actual load have big difference, energy waste is serious, and grid loss is big.The capacitance-adjustable transformer of domestic-developed is to utilize the capacity transfer change over switch to carry out capacity transfer at present, but this transformer costs an arm and a leg, the cost height, and the working service complexity is difficult to meet consumers' demand.

The utility model content:

Utilize the capacity transfer change over switch to carry out capacity transfer in order to solve existing capacitance-adjustable transformer, cause its production cost too high, the working service complexity, the problem that is not easy to promote, the utility model provides a kind of oil pumper special-purpose amorphous iron core variable capacitance and energy-saving transformer, the capacity of the special-purpose amorphous iron core variable capacitance and energy-saving transformer of this kind oil pumper can increase and decrease automatically with the increase and decrease of load current, cancelled the capacity transfer change over switch, reduced the production cost of capacitance-adjustable transformer, satisfied the oil pumper heavy-load start, the requirement of stress alternation operation, fundamentally changed the un-reasonable phenomenon of " low load with strong power " in the past, reduced the electrical network occupation rate, the distribution varying capacity can reduce 40%～60%, and total losses descend significantly.

The technical solution of the utility model is: the special-purpose amorphous iron core variable capacitance and energy-saving transformer of this kind oil pumper; comprise protection equipment for transformer, bushing, shunting switch, low-tension bushing, lead-in wire, wire clamp, iron core, coil, fuel tank, transformer oil, wherein said iron core by four independently rectangle volume iron core combine the three-phase five-limb structure.Described volume iron core adopts overlap joint iron yoke seam, and it is the amorphous alloy film of 0.03mm that its material adopts sheet thick.

The utlity model has following beneficial effect: owing to take such scheme, the special processing mode of employing unshakable in one's determination, formation is by four iron cores of constituting of rectangle volume iron core independently, be combined into the three-phase five-limb structure, beam overall unshakable in one's determination increases by 15%～20%, height overall unshakable in one's determination increases by 6%～10%, makes its magnetic flux density value descend 20%～30%, thereby can reach the purpose that reduces no-load loss.In the oil pumper work, can reduce about 50% when transformer capacity and motor coupling, satisfy the job requirement of heavy load starting and stress alternation, promptly under rated capacity, can reach exerting oneself of double capacity, and transformer loss is the loss under the rated capacity, reaches the capacity transfer purpose, energy-saving effect is remarkable, and applicability is strong.

Description of drawings:

Fig. 1 is a structure cut-away view of the present utility model.

Fig. 2 is the structural representation of volume iron core in the utility model.

Fig. 3 is the structural representation of iron core and coil in the utility model.

1-protection equipment for transformer among the figure, the 2-bushing, the 3-shunting switch, the 4-low-tension bushing, the 5-lead-in wire, the 6-wire clamp, the 7-iron core, the 8-coil, the 9-fuel tank, the 10-transformer oil, 11-rolls up iron core, 12-overlap joint iron yoke.

Embodiment:

The utility model is described in further detail below in conjunction with accompanying drawing:

By shown in Figure 1; the special-purpose amorphous iron core variable capacitance and energy-saving transformer of this kind oil pumper; comprise protection equipment for transformer 1, bushing 2, shunting switch 3, low-tension bushing 4, lead-in wire 5, wire clamp 6, iron core 7, coil 8, fuel tank 9, transformer oil 10, wherein described iron core 7 according to conventional core structure change has been taken place.Its concrete structure is: combine the three-phase five-limb structure by four independently rectangle volume iron cores 11 as shown in Figure 2.Wherein, described volume iron core 11 adopts overlap joint iron yoke 12 seams, has simplified technology and tooling device, and the better protect magnetic property makes it reach optimum, thereby can further reduce no-load loss.

Through experimental results demonstrate, described volume iron core 11 adopts the thick effect optimum when being the amorphous alloy film of 0.03mm of sheets.Here winding can be the rectangle cross section, and the bilayer of coiling moulding or multilayer rectangle laminar are that minimizing copper material consumption 5% is compared in round cross section with winding separately, and fuel tank is the ripple struction of full sealed non-maintenance.Compare with similar transformer, the close selective value of magnetic descends 28%, and electric close value descends about 41%, and impedance adjusts to 3.6%.The technological coefficient span should be 1.11, and joint group adopts the Dynll connecting method.

After using the technical program, because this main component of transformer is amorphous magnetic circuit iron core and the high-voltage coil and low-voltage coil that constitutes the three-phase electric energy transmission, in actual design, use electromagnetic induction principle, by four independently rectangle volume iron core combine the three-phase five-limb structure, under this structure, adjust the current density of high-voltage coil and low-voltage coil, can make the current density value descend 50%～60% according to the conventional transformer value, beam overall unshakable in one's determination increases by 15%～20%, height overall unshakable in one's determination increases by 6%～10%, thereby has determined the magnetic flux density of suitable iron core.Adjust corresponding impedance, compare with domestic similar SH11 product, when guaranteeing that impedance reaches the GB requirement, transformer capacity can be regulated in 0.8～2.0 times of scope.In the oil pumper work, can reduce about 50% when transformer capacity and motor coupling, satisfy the job requirement of heavy load starting and stress alternation, promptly under rated capacity, can reach exerting oneself of double capacity, and transformer loss is the loss under the rated capacity, reaches automatic capacity transfer purpose, energy-saving effect is remarkable, applicability is strong, makes transformer capacity can satisfy the oil pumper operating characteristic automatically.Non-crystaline amorphous metal capacitance-adjustable transformer and oil pumper configuring condition: as used for oil extractor 37kW motor, former adapted SH11-63kVA transformer, now can select for use capacity transfer to become the RSH11-30kVA transformer, transformer capacity is saved half, no-load loss descends 67%, load loss descends 42.3%, about 6000 yuan of the Spring Festival holidays electricity charge.This transformer is safeguarded simple and convenient, and energy-saving effect is remarkable, is suitable for various oil pumpers and uses.

Claims (3)

1, the special-purpose amorphous iron core variable capacitance and energy-saving transformer of a kind of oil pumper; comprise protection equipment for transformer (1), bushing (2), shunting switch (3), low-tension bushing (4), lead-in wire (5), wire clamp (6), iron core (7), coil (8), fuel tank (9), transformer oil (10), it is characterized in that: described iron core (7) is independently rolled up iron core (11) by four rectangles and is combined the three-phase five-limb structure.

2, the special-purpose amorphous iron core variable capacitance and energy-saving transformer of oil pumper according to claim 1 is characterized in that: described volume iron core (11) adopts overlap joint iron yoke (12) seam.

3, according to claim 1 or the special-purpose amorphous iron core variable capacitance and energy-saving transformers of 3 described oil pumpers, it is characterized in that: described volume iron core (11) adopts that sheet is thick to be the amorphous alloy film of 0.03mm.

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