CN205508561U - Shell structure of a transformer equipment - Google Patents

Abstract

The utility model discloses a potential device shell structure, including the main casing body, be equipped with the main intake pipe that the level was arranged on the main casing body, a plurality of vertical intake pipe of arranging, main intake pipe is fixed on main casing internal top, main intake pipe one end opening, the one end is sealed, main intake pipe open end and atmosphere intercommunication, be equipped with air intake fan in the main intake pipe open end, it is internal that intake pipe is in the main casing, prop up intake pipe upper end and main intake pipe intercommunication, it seals to prop up the intake pipe lower extreme, it is equipped with one row of horizontal venthole that distributes along vertical direction in the edge to prop up in the intake pipe, be equipped with a plurality of shell vents hole on the wall of main: the aperture of the transverse air outlet hole positioned above is smaller than that of the transverse air outlet hole positioned below. The utility model has the advantages that: the air guide and the heat dissipation can be effectively carried out inside, and the electric elements of the circuit can be effectively protected; the heat dissipation airflow can be ensured to be clean, and the dust deposition of the circuit electric elements can be reduced.

Description

Shell structure of a transformer equipment

technical field

The utility model belongs to the technical field of outdoor transformers, in particular to a shell structure of transformer equipment.

Background technique

Transformer (Transformer) is a device that uses the principle of electromagnetic induction to change the AC voltage. There are various types of transformers, and outdoor transformers are widely used and common. Outdoor transformers usually have a shell structure, with electrical and circuit structures inside. Outdoor transformers are large in size, have many electrical components in the circuit, and generate severe heat. At present, ventilation holes are often used on the casing to dissipate heat. However, it still has problems in solving local heat accumulation and ensuring internal temperature uniformity. Something is lacking.

Utility model content

The utility model aims to overcome the deficiencies in the prior art, and provides a transformer with reasonable structure, which can effectively conduct internal air guide and heat dissipation, is not easy to accumulate heat locally, has strong heat dissipation capability, and can effectively protect circuit electrical components. Equipment housing structure.

In order to achieve the above object, the utility model adopts the following technical solutions:

A casing structure of a pressure transformation device, comprising a main casing, on which a horizontally arranged main air intake pipe and a number of vertically arranged branch air inlet pipes are arranged, the main air intake pipe is fixed on the inner top of the main casing, and the main air inlet pipe One end of the trachea is open and the other end is closed. The open end of the main air intake pipe is connected to the atmosphere. The open end of the main air intake pipe is provided with an air intake fan. The branch air intake pipe is located in the main shell. The lower end is closed, and a row of horizontal air outlets distributed along the vertical direction is provided on the branch air intake pipe, and a number of shell air outlets are provided on the side wall of the main shell. In any two horizontal air outlet holes on a branch air intake pipe: The aperture diameter of the upper transverse air outlet is smaller than that of the lower lateral air outlet, and the upper end of the branch air intake pipe is threadedly connected with the main air intake pipe.

As a preference, the open end of the main air intake pipe communicates with the atmosphere through a pre-filter, and the pre-filter includes a cyclone cone, an inner filter screen, a tangential air intake pipe, an inner air pipe, and a circular sealing plate. There is a vertical partition, the vertical partition divides the inside of the main shell into an electrical chamber and a filter chamber, the cyclone cone is located in the filter chamber, the upper and lower ends of the cyclone cone are open and the upper opening is larger than the lower opening, the inner filter Both the upper and lower ends of the screen cylinder are open, and the lower end opening of the inner filter cylinder is sealed by a sealing piece. The opening of the upper end of the inner filter cylinder is sealed by a circular sealing plate. The circular sealing plate is provided with a plate hole communicating with the interior of the inner filter cylinder. The side wall of the housing is connected to the atmosphere, one end of the inner air pipe passes through the vertical partition and communicates with the opening end of the main air intake pipe, the other end of the inner air pipe communicates with the plate hole, and a filter layer is arranged in the inner air pipe.

As a preference, the sealing member is an inner ash tube with an open upper end, the upper end of the inner ash tube is threadedly connected with the lower end of the inner filter screen tube, and the bottom of the main housing is provided with an opening and closing door, which is located below the inner ash tube, opening and closing The closed door seals the lower end opening of the cyclone cone.

Preferably, the main casing includes a case top cover and a case body, and the case top cover and the case body are connected and fixed by several screws.

The beneficial effects of the utility model are: the structure is reasonable, the internal wind guide and heat dissipation can be effectively carried out, the local part is not easy to accumulate heat, the heat dissipation ability is strong, and the electrical components of the circuit can be effectively protected; Ash, which is beneficial to improve the overall service life and the stability of the transformer working process.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the sectional view of B-B among Fig. 1;

Fig. 3 is an enlarged view of A in Fig. 1 .

In the figure: main casing 1, casing exhaust hole 11, vertical partition 12, electrical cavity 13, filter cavity 14, opening and closing door 15, casing top cover 1a, casing body 1b, main air intake pipe 2, air intake Fan 21, branch air intake pipe 3, lateral air outlet 31, cyclone cone tube 41, inner filter screen tube 42, inner ash tube 421, tangential air intake pipe 43, inner air pipe 44, round sealing plate 45.

detailed description

Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described.

As shown in Figures 1 to 3, a shell structure of a transformer equipment includes a main casing 1, on which a horizontally arranged main air intake pipe 2 and several vertically arranged branch air inlet pipes are arranged. 3. The main air intake pipe is fixed on the inner top of the main housing. One end of the main air intake pipe is open and the other end is closed. In the shell, the upper end of the branch air intake pipe communicates with the main air intake pipe, and the lower end of the branch air intake pipe is closed. The branch air intake pipe is provided with a row of horizontal air outlet holes 31 distributed along the vertical direction, and the side wall of the main shell is provided with a number of shell exhaust pipes. Hole 11, in any two transverse air outlets on a branch air pipe: the aperture diameter of the horizontal air outlet above is smaller than the horizontal air outlet aperture below, and the upper end of the branch air pipe is threadedly connected with the main air intake pipe. The air intake fan is used to suck the external air into the main casing. The air first enters the main air intake pipe, and then disperses into each branch air intake pipe. Dispersed multi-channel heat dissipation airflow is formed inside the casing. In the prior art, the air intake and exhaust are usually "extensive", so when the electrical circuit components or other structures partially block the air flow, the airflow will bypass these parts and be directly discharged, which will easily cause local heat dissipation. Chang (accumulated heat). Due to the multi-channel airflow, the coverage is wide, and each airflow has a certain degree of independence, which can effectively dissipate heat for each part, and the overall flow direction of the airflow is from the opening end of the main air intake pipe to the exhaust hole of the shell, so as to dissipate the airflow It can effectively take care of all places and avoid the problem of poor local heat dissipation caused by the single air flow direction in the prior art when the circuit electrical components or other structures partially block the air flow. In addition, each branch air intake pipe can be rotated slightly (the upper end of which is threadedly connected with the main air intake pipe) to adjust the air outlet direction of the horizontal air outlet, so that the cooling airflow can be blown directly to the position that needs more heat dissipation in a targeted manner, thereby It can better adapt to the heat dissipation of circuit electrical components with different structures.

The open end of the main intake pipe is communicated with the atmosphere through a pre-filter, and the pre-filter includes a cyclone cone cylinder 41, an inner filter screen cylinder 42, a tangential air intake pipe 43, an inner air pipe 44, and a circular sealing plate 45. The casing is provided with a vertical partition 12, and the vertical partition divides the interior of the main casing into an electrical cavity 13 and a filter cavity 14. The cyclone cone is located in the filter cavity, and the upper and lower ends of the cyclone cone are open and the upper opening is larger than The lower end is open, the upper and lower ends of the inner filter cylinder are open, and the lower opening of the inner filter cylinder is sealed by a sealing piece. The upper opening of the cone cylinder and the upper opening of the inner filter cylinder are sealed by a circular sealing plate, which is provided with a plate hole communicating with the interior of the inner filter cylinder. The other end is open on the side wall of the main shell and communicates with the atmosphere. One end of the inner air pipe passes through the vertical partition and communicates with the opening end of the main air intake pipe. The other end of the inner air pipe communicates with the plate hole. The electrical cavity is used to install and accommodate the electrical components of the circuit, etc. There are dust impurities in the external air. Under the action of the air intake fan, the external air enters the tangential intake pipe and enters the cyclone cone in a tangential or approximately tangential manner. and form a swirling flow in the cyclone cone, the relatively heavy (larger) dust and impurities stick to the wall, and then gradually fall down due to gravity, and the air flow enters the inner filter cylinder through the filter holes, and reaches the plate hole upwards, Then it reaches the main intake pipe through the inner trachea. The filter layer can fine-filter the gas in the inner air pipe again, and the filtered dust and impurities fall (fall into) the sealing piece. In this way, the cooling air provided by the main air intake pipe passes through the filter, which can greatly reduce the circuit The dust accumulation of electrical components can avoid the problem of poor heat dissipation caused by excessive dust accumulation.

The sealing part is an inner ash tube 421 with an open upper end, the upper end of the inner ash tube is threadedly connected with the lower end of the inner filter screen tube, the bottom of the main housing is provided with an opening and closing door 15, and the opening and closing door is located below the inner ash tube. The door seals the opening at the lower end of the cyclone cone. The main housing includes a top cover 1a and a body 1b, and the top cover and the body are connected and fixed by several screws. When it is necessary to clean the dust, you can open the opening and closing door (the opening and closing door can be clamped or threaded with the bottom of the main shell at ordinary times, as long as the opening and closing functions can be realized), so that the dust and impurities can fall, and then the inner can be unscrewed. The ash barrel is used to dump the "fine ash" in the inner ash barrel. The main shell is easy to disassemble and assemble, which is convenient for maintenance and cleaning.

Claims (4)

1. a potential device shell mechanism, including main casing, it is characterized in that, described main casing is provided with horizontally disposed main air inlet pipe, an air inlet pipe of some vertical layouts, main air inlet pipe is fixed on main casing inner top, main air inlet pipe one end open, one end is closed, main air inlet pipe opening and atmosphere, it is provided with air intake blower fan in main air inlet pipe opening, prop up air inlet pipe to be in main casing, prop up air inlet pipe upper end to connect with main air inlet pipe, prop up air inlet pipe lower end closed, prop up air inlet pipe and be provided with the horizontal venthole that a row is vertically distributed, main casing sidewall is provided with some housing steam vents, in the horizontal venthole of any two in one air inlet pipe: horizontal venthole aperture up, place is less than horizontal venthole aperture at the bottom, prop up and threaded between air inlet pipe upper end with main air inlet pipe.

nullA kind of potential device shell mechanism the most according to claim 1，It is characterized in that，Described main air inlet pipe opening passes through preposition cleaner and atmosphere，Preposition cleaner includes whirlwind cone cylinder、Inner filter net cylinder、Tangential admission pipe、Interior trachea、Circle shrouding，Vertical clapboard it is provided with in main casing，Vertical clapboard will be separated into electric chamber inside main casing、Filtering chamber，Whirlwind cone cylinder is in filtering intracavity，In whirlwind cone cylinder、The equal opening in lower end and upper end open are more than lower ending opening，On Inner filter net cylinder、The equal opening in lower end，Inner filter net cylinder lower ending opening is sealed by a sealed piece，Inner filter net cylinder is in whirlwind cone cylinder and Inner filter net cylinder is provided with multiple filtering holes，Whirlwind cone cylinder upper end open and Inner filter net cylinder upper end open are all sealed by circle shrouding，Circle shrouding is provided with the plate hole that connect internal with Inner filter net cylinder，Tangential admission pipe one end connection whirlwind cone cylinder，The tangential admission pipe other end is opened on main casing sidewall and and atmosphere，Interior trachea one end through vertical clapboard and connects with main air inlet pipe opening，The interior trachea other end connects with plate hole，Interior trachea is provided with filter mesh layer.

A kind of potential device shell mechanism the most according to claim 2, it is characterized in that, described sealed piece is the interior ash cylinder of a upper end open, threaded with Inner filter net cylinder lower end in interior ash cylinder upper end, shutter door it is provided with bottom main casing, shutter door is in below interior ash cylinder, and shutter door seals whirlwind cone cylinder lower ending opening.

4. according to a kind of potential device shell mechanism described in claim 1 or 2 or 3, it is characterized in that, described main casing includes roof lid, body, is connected fixing between roof lid and body by some screws.