Energy-saving and environment-friendly dry-type transformer

Abstract

The utility model discloses an energy-saving and environment-friendly dry-type transformer which comprises a lower flow guide piece arranged on the outer side of an air outlet of an air cooler, a flow guide piece with the end parallel to the side wall of the transformer is arranged on the lower flow guide piece, upper flow guide pieces which are symmetrically arranged are installed on a top base, and upper arc pieces with openings facing the flow guide piece are arranged on the upper flow guide pieces. According to the energy-saving and environment-friendly dry-type transformer, the bottom of the transformer is cooled in the process that cooling air is exhausted between the upper ends of the flow deflectors and the side wall of the transformer, and the cooling air is attached to the side wall of the transformer and flows upwards, so that the cooling air cools the outer side wall of the transformer until the cooling air reaches the position of the top seat; cooling air with a certain temperature is blown to the upper flow guide part, the staying time of the cooling air in the air is shortened, dissipation of the cooling air caused by mixed air is reduced, the cooling air is guided to the position above the transformer through the inner side arc face of the upper arc piece, the cooling air is finally mixed with external air to be dissipated, and loss in the flowing process is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer technical field, concretely related to an energy -conserving and environment -friendly dry -type transformer. BACKGROUND

[0002] The transformer is the basic equipment of power transmission and distribution, and utilizes the principle of electromagnetic induction to change AC voltage, and the transformer is mainly divided into two kinds according to cooling mode, namely dry -type transformer and oil -immersed transformer.

[0003] According to the disclosure (announcement) number: CN106504857A, the disclosure (announcement) day: March 15, 2017, a kind of dry-type transformer is disclosed.

[0004] In the prior art including above-mentioned patent, because the coil on dry-type transformer is exposed, usually located indoor use, and dry-type transformer is different from oil-immersed transformer, dry-type transformer using natural cooling mode needs to be equipped with blowing equipment, and dry-type transformer is provided with stable cooling air source, to guarantee dry-type transformer normal work, and traditional cooling source is generally on the transformer base, and the air source blows to the outside of coil gradually dissipates in air, if using high-power cooling air source, although it can cover the cooling of entire transformer, but increase the consumption of electric power resources, also lead to the temperature rise of cooling air source position, make the local heat of transformer base position increase, affect the constant temperature effect of transformer bottom area. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an energy -conserving and environment -friendly dry -type transformer, to solve the problem generated above.

[0006] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] An energy -conserving and environment -friendly dry -type transformer, including the base of being provided with transformer and top seat, and still install multiple air coolers on the base, still include the lower flow guide piece of being arranged at the air cooler air outlet outside, the lower flow guide piece is provided with the flow guide piece of the end parallel to the side wall of transformer on;

[0008] The top seat is installed with the upper flow guide piece of symmetrical arrangement, and the upper flow guide piece is provided with the upper arc piece of the opening towards flow guide piece.

[0009] Preferably, the flow guide piece end is provided with outer shade piece, and the inner shade piece of maintaining predetermined included angle with it is fixedly installed on the outer shade piece.

[0010] Preferably, the end of the upper arc piece is fixedly installed with the edge arc piece of the opening opposite arrangement.

[0011] Preferably, the upper arc piece is divided into shunt end and converging end according to shape, and the shunt end cooperates with the flow guide piece.

[0012] Preferably, the two converging ends of the upper arc pieces reverse the exhaust air flow.

[0013] In the above technical solution, the energy-saving and environment-friendly dry-type transformer has the following beneficial effects: the cooling fan blows cooling air to the lower flow guide member, and the cooling air acts on the arc top of the flow guide piece until it is discharged from the upper end of the flow guide piece and the side wall of the transformer, which can cool and lower the temperature of the side wall at the bottom of the transformer, avoid the temperature of the bottom of the transformer being too high, and at the same time, the cooling air flows upward along the side wall of the transformer, so that the cooling air cools the outer side wall of the transformer, and when it reaches the top seat position, the cooling air with a certain temperature is blown to the upper flow guide member, the residence time of the cooling air in the air is shortened, the cooling air is reduced due to the mixing of air, and the cooling air is guided to the upper side of the transformer through the inner arc surface of the upper arc piece, and finally mixed with external air to be dissipated, so that the cooling air blown by the cooling fan is efficiently utilized, and the loss in the flowing process is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0015] Figure 1 The dry-type transformer and the assembly diagram of the lower flow guide member and the upper flow guide member thereon provided by the embodiments of the present application are provided.

[0016] Figure 2 The dry-type transformer provided by the embodiments of the present application is provided.

[0017] Figure 3 The dry-type transformer and the side view diagram of the lower flow guide member and the upper flow guide member thereon provided by the embodiments of the present application are provided.

[0018] Figure 4 The lower flow guide member and the upper flow guide member provided by the embodiments of the present application are provided.

[0019] Explanation of reference signs:

[0020] 1, base; 11, transformer; 12, top seat; 13, cooling fan; 2, lower flow guide member; 21, flow guide piece; 22, outer shade piece; 23, inner shade piece; 3, upper flow guide member; 31, upper arc piece; 32, edge arc piece; 33, flow dividing end; 34, converging end. DETAILED DESCRIPTION

[0021] In order to make the technical personnel of the prior art better understand the technical scheme of the present application, the present application will be further described in detail below with reference to the drawings.

[0022] As shown in Figures 1-4 An energy-saving and environment-friendly dry-type transformer, comprising a base 1 provided with a transformer 11 and a top seat 12, and a plurality of air coolers 13 are further installed on the base 1, further comprising a lower flow guide 2 arranged outside the air outlet of the air cooler 13, and the lower flow guide 2 is provided with a flow guide fin 21 with its end parallel to the side wall of the transformer 11.

[0023] The top seat 12 is provided with a symmetrically arranged upper flow guide 3, and the upper flow guide 3 is provided with an upper arc fin 31 with its opening facing the flow guide fin 21.

[0024] Specifically, the transformer 11 and the frame body connected above and below are prior art, and the number and power of the air coolers 13 are prior art, which will not be repeated here.

[0025] Further, the lower flow guide 2 is located outside all the air coolers 13 on one side of the base 1, so that the cooling air blown by the air coolers 13 is fully guided by the lower flow guide 2, reducing the waste of cooling air dissipation, and the arc-shaped flow guide fin 21 is arranged at the upper end and parallel to the side wall of the transformer 11, which is used for quickly blowing out the cooling air and cooling treatment.

[0026] Further, the upper flow guide 3 and the lower flow guide 2 made of the same heat-conducting metal material (prior art, which will not be repeated here) are equal in length, so that the upper arc fin 31 blows upward and picks up the cooling air with loss, improving the utilization efficiency of the cooling air, and the arc top of the upper arc fin 31 is upward, which is used to increase the picking-up capacity of the cooling air flowing upward.

[0027] Further, the lower flow guide 2 is fixedly installed on the bracket on the base 1, and the upper flow guide 3 is fixedly installed on the bracket on the top seat 12, and the brackets of the two are arranged at equal distances, which increases the stable working of the parts and does not interfere with the airflow passing through.

[0028] The cooling air is blown to the lower guide member 2 by the cooling fan 13, and the cooling air acts on the arc top of the guide fin 21 until being discharged from the upper end of the guide fin 21 and the side wall of the transformer 11, so that the side wall of the transformer 11 at the bottom position is cooled and the temperature of the bottom of the transformer 11 is prevented from being too high. Meanwhile, the cooling air flows upward along the side wall of the transformer 11, so that the cooling air cools the outer side wall of the transformer 11, and when reaching the top seat 12, the cooling air with a certain temperature is blown to the upper guide member 3, so that the residence time of the cooling air in the air is shortened, the dissipation of the cooling air due to mixed air is reduced, the cooling air is guided to the upper side of the transformer 11 through the inner arc surface of the upper arc fin 31, and finally mixed with the external air to be dissipated. Therefore, the cooling air blown by the cooling fan 13 is used efficiently, the loss in the flowing process is reduced, and a high-power cooling fan 13 is not needed to cool the transformer 11, so that the energy consumption is reduced and the energy-saving and environment-friendly effect of the transformer 11 is improved.

[0029] As a further provided embodiment of the utility model, the guide fin 21 is provided with an outer shielding sheet 22 at the end, and the outer shielding sheet 22 is fixedly installed with an inner shielding sheet 23 at a predetermined included angle.

[0030] Specifically, the outer shielding sheet 22 and the inner shielding sheet 23 are inverted "V" shaped, and both are elastic metal sheets, and under the action of the bracket on the lower guide member 2, the base 1 with the outer shielding sheet 22 has an anti-collision effect, so that the transformer 11 is not easy to be damaged during transportation, and the safety of the equipment is improved.

[0031] The outer shielding sheet 22 prolongs the guiding cooling air effect of the guide fin 21, and the outer shielding sheet 22 below the air outlet of the cooling fan 13 can provide air suction effect below, increase the amount of cooling air, and improve the cooling effect. Meanwhile, the inner shielding sheet 23 provides blocking of the suction air, and intercepts the impurities mixed in the air, so that the dust carried by the upward blowing cooling air is attached to the side wall of the transformer 11, the dustproof effect of the transformer 11 is ensured, and the outer shielding sheet 22 damaged by impact extrudes the inner shielding sheet 23, and under the action of the predetermined included angle between the two, the end of the inner shielding sheet 23 is shortened and the distance from the base 1 is shortened, so as to strengthen the blocking of the dust and reduce the interference of the dust particles.

[0032] As a further provided embodiment of the utility model, the upper arc fin 31 is fixedly installed with a side arc fin 32 at the end, and the side arc fin 32 is arranged opposite to the opening of the upper arc fin 31.

[0033] Specifically, the side arc fin 32 and the upper arc fin 31 are combined into an "S" shape, so as to increase the heat transfer area.

[0034] The falling dust in the transformer 11 chamber is collected by the edge arc piece 32, and the falling dust is located in the concave upward opening of the edge arc piece 32, and the downward arc top of the edge arc piece 32 covers and intercepts the upward blowing cooling air, reduces the air emission of the cooling air from the edge arc piece 32, and guides the cooling air into the opening of the upper arc piece 31, so that the cooling air can be efficiently utilized.

[0035] As a further provided embodiment of the utility model, the upper arc piece 31 is divided into a shunt end 33 and a converging end 34 according to the shape, and the shunt end 33 cooperates with the flow guide piece 21.

[0036] Specifically, the port of the shunt end 33 is larger than that of the converging end 34.

[0037] The cooling air in the upper arc piece 31 is guided to the upper side of the transformer 11 by the shunt end 33, so that the cooling air gradually cools the entire outer side of the transformer 11, thereby ensuring the cooling efficiency.

[0038] As a further provided embodiment of the utility model, the converging ends 34 of the two upper arc pieces 31 are reversely arranged.

[0039] Specifically, the two upper arc pieces 31 on the top base 12 reversely arrange the shunt end 33 and the converging end 34.

[0040] The other part of the cooling air entering the upper arc piece 31 is discharged from the converging end 34, so that the air flow is accelerated during the discharge process, thereby accelerating the heat absorbed by the upper arc piece 31, and the cooling air has stronger cooling capacity. The cooling air discharged in the opposite direction can also reduce the capacity distribution burden of the environment around the transformer 11, so that the heat dissipation efficiency of the environment of the transformer 11 is higher.

[0041] Working principle: through the cooling fan 13 blows cooling wind to the lower guide piece 2, and makes the cooling wind act on the arc top of the guide vane 21, until from the upper end of the guide vane 21 and the side wall between the transformer 11 exhaust, the process can cool the bottom position side wall of the transformer 11, while with the cooling wind adheres to the side wall of the transformer 11 up flow, make the cooling wind to the outside wall of the transformer 11 cooling treatment, and when up to the top seat 12 position, blow the cooling wind with certain temperature to the upper guide piece 3, shorten the cooling wind in the air residence time, reduce the cooling wind due to mixed air and dissipation, and guide the cooling wind to the upper side of the transformer 11 through the inner arc surface of the upper arc piece 31, finally mixed into the outside air dissipation, make the cooling wind blown by the cooling fan 13 be high efficient utilization, also do not need to use high power cooling fan 13 to cool the transformer 11, and the outer cover piece 22 prolongs the guiding cooling wind effect of the guide vane 21, and the outer cover piece 22 under the outlet of the cooling fan 13, can make the outer cover piece 22 provide the air suction effect under, increase the cooling air volume, and the inner cover piece 23 provides the blocking of suction air, and the sundries mixed in the air are intercepted, reduce the dust attached to the side wall of the transformer 11 carried by the cooling wind blowing upwards, and the outer cover piece 22 impacted and damaged is extruded to the inner cover piece 23, and the inner cover piece 23 end shortens the spacing with the base 1 under the action of the predetermined angle between the two, the purpose is to strengthen the blocking of dust.

[0042] The above only describes some exemplary embodiments of the present application by way of illustration, without doubt, for ordinary skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and description are illustrative in nature, and should not be understood as limiting the scope of protection of the present application.

Claims

1. An energy-saving and environment-friendly dry-type transformer, comprising a base (1) provided with a transformer (11) and a top base (12), and a plurality of cold air blowers (13) are further installed on the base (1), characterized in that, It also comprises a lower flow guide (2) arranged outside the air outlet of the air cooler (13), and a flow guide fin (21) parallel to the side wall of the transformer (11) is arranged on the lower flow guide (2). The upper flow guide (3) is symmetrically arranged on the top seat (12), and an upper arc fin (31) with an opening facing the flow guide fin (21) is arranged on the upper flow guide (3).

2. The energy-saving and environment-friendly dry-type transformer according to claim 1, characterized in that, An outer shielding fin (22) is arranged at the end of the flow guide fin (21), and an inner shielding fin (23) with a predetermined included angle is fixedly arranged on the outer shielding fin (22).

3. The energy-saving and environment-friendly dry-type transformer according to claim 1, characterized in that, An edge arc fin (32) is fixedly arranged at the end of the upper arc fin (31) and is arranged opposite to the opening.

4. The energy-saving and environment-friendly dry-type transformer according to claim 1, characterized in that, The upper arc fin (31) is divided into a flow dividing end (33) and a converging end (34) according to the shape, and the flow dividing end (33) cooperates with the flow guide fin (21).

5. The energy-saving and environment-friendly dry-type transformer according to claim 4, characterized in that, The converging ends (34) on the two upper arc fins (31) discharge airflows in opposite directions.

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