CN112490895A

CN112490895A - Compact box type prefabricated substation

Info

Publication number: CN112490895A
Application number: CN202011409479.6A
Authority: CN
Inventors: 张星明; 尹步华
Original assignee: Jiangsu Anrely Intelligent Power Station Technology Co ltd
Current assignee: Jiangsu Anrely Intelligent Power Station Technology Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-03-12
Anticipated expiration: 2040-12-03
Also published as: CN112490895B

Abstract

The invention discloses a compact box type prefabricated substation, which comprises a box body, a top cover, a box door, a base and a transformer, wherein the top cover covers the upper part of the box body, the side surface of the box body is provided with the box door, the bottom of the box body is provided with the base, and the transformer is arranged in the box body, and the compact box type prefabricated substation is characterized in that: the top cap includes lid, baffle, and the lid covers the box upper end, sets up vertical baffle in the middle of in the lid, and the lid level of baffle both sides extends and stretches out on the box along, and the border lower surface that the lid stretches out on the box along sets up the air vent, sets up the ventilator unit in box or the lid, and the ventilator unit gets into and discharges the box with external wind drainage via the air vent. The positions of the ventilation holes are arranged at the positions, facing downwards, of the edges of the top cover to form an eave structure, and even if rain is heavy and wind is heavy in rainy days, the transformer which influences the inside in the box body cannot be impacted and flown into the box body from the side face.

Description

Compact box type prefabricated substation

Technical Field

The invention relates to the technical field of transformer substations, in particular to a compact box type prefabricated transformer substation.

Background

With the development of technology, the transformer substation is gradually replaced by more and more prefabricated transformer substations from the traditional civil engineering transformer substation, and the compactness and the convenient construction degree are higher and higher.

However, the existing prefabricated substation only uses a box frame with electrical components such as transformer, then sets up the air vent in the side, and inside sets up equipment such as ventilation blower and lets the air inflow flow out and dispel the heat, has several problems:

1. when the humidity of air around the transformer substation is high, large-flow air cannot be guided to enter the box body for heat dissipation, and the prior art either dries or sacrifices heat dissipation performance;

2. raindrops may enter the box body in rainy days;

3. during extreme weather flood, the transformer substation is directly submerged, and the security receives the influence greatly and can't work.

Disclosure of Invention

The invention aims to provide a compact box-type prefabricated substation to solve the problems in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme:

the utility model provides a prefabricated transformer substation of compact case formula, the transformer substation includes box, top cap, chamber door, base and transformer, and the chamber door is seted up to the top cap lid on box upper portion, box side, and the bottom half sets up the base, and in the box was arranged in to the transformer, its characterized in that: the top cap includes lid, baffle, and the lid covers the box upper end, sets up vertical baffle in the middle of in the lid, and the lid level of baffle both sides extends and stretches out on the box along, and the border lower surface that the lid stretches out on the box along sets up the air vent, sets up the ventilator unit in box or the lid, and the ventilator unit gets into and discharges the box with external wind drainage via the air vent. The positions of the ventilation holes are arranged at the positions, facing downwards, of the edges of the top cover to form an eave structure, and even if rain is heavy and wind is heavy in rainy days, the transformer which influences the inside in the box body cannot be impacted and flown into the box body from the side face.

The ventilator set comprises two fans which are respectively arranged on two sides of the partition board, and the fans are reversible axial flow fans. The two fans can be combined for use, the flowing state of radiating air is improved, the flow of the axial flow fan is large, outside air can be sucked into the box body from the air hole on one side, passes through the fans, then rises from the two fans, is bent and is discharged from the other air hole.

Two fans are connected in series for blowing. The air supply directions of the two fans for blowing air in series are one above the other, the two fans are overlapped to form large-flow radiating air flow, and when the humidity of the ambient air is low, the large-flow air can increase the radiating effect.

The two fans blow air in a back direction, and the running powers of the fans are unequal. The air supply directions of the two fans are all from the inside of the box to the outside, but the power is unequal, so the main melody flow direction of the heat dissipation air flow is based on the air blowing direction of the high-power fans, under the working condition that back-to-back air blowing is applied to large ambient air humidity, the ambient air humidity is high, and large-flow high-humidity air directly enters the transformer substation, which can generate adverse effects on some electrical parts and possibly influence the insulation performance at some positions, while the back-to-back air blowing arrangement mode introduces air flow with unchanged humidity, but because the fans blow air outwards, a low-pressure area is formed inside the box, in the area, the air pressure is lower than the external atmospheric pressure to a certain degree, under the low-pressure condition, although the proportion of water vapor components in the air is unchanged, the partial pressure of the water vapor is reduced and is lower than the saturated vapor pressure at the air temperature, and moreover, under the condition of low pressure, the insulation degree of air is improved, and the risk factors of electrical components in the box body are further prevented.

The fan sets up two way branch pipes respectively towards the one end in the box, and branch pipe inserts to the bottom in the box and sets up the cold wind mouth at the tip all the way, and the tip of another way branch pipe is hot-blast mouth, and the hot-blast mouth is located the top in the box, sets up the check valve on two way branch pipes respectively, and the air that the fan sent into the box blows off from the cold wind mouth, and the hot-air in the box arrives the fan from the hot-blast mouth. Two fans are as the power part that blows in the box often, and the hot-air outflow box in the box that needs drainage box often, and the gas that gets into in the box is generally the air that will be used for the cooling, is the cold air, and density is great, and the combustion gas is generally the hot-air in the box from the box, and density is low, floats in box upper portion, and the cold air blows off from the box bottom, is drained away from upper portion and can lets the heat exchange more abundant. The presence of the one-way valve allows the flow of air to be assured to follow the intended path.

The opening and closing contact surface of the box door and the box body is provided with a sealing gasket, and the top cover further comprises a water blocking structure, so that when flood occurs around the transformer substation, the water blocking structure blocks water from passing through the vent hole. When flood occurs around the transformer substation and the transformer substation is flooded, water cannot enter the box body through the box door due to the existence of the sealing gasket, only a path of an air vent, a fan and a cold air vent is left between the box body and the outside, the air vent needs to be plugged together during flooding, at the moment, the heat dissipation effect of electrical components in the box body such as a transformer and the like does not need to be considered any more, heat can be obviously taken away due to the contact of surrounding water bodies and the wall surface of the box body, and at the moment, the safety of the transformer substation needs to be placed at the head.

The water blocking structure is a floating body plug, an inclined plane is arranged at the downward end of the vent hole, the floating body plug is integrally made of rubber, a conical part is arranged at the lower part of the floating body plug, the shape of the upper side surface of the conical part is matched with the inclined plane, and the upper part of the floating body plug penetrates through the vent hole and is supported by a supporting guide frame. When the outside is free of water, the floating plug naturally drops to the position supported by the supporting guide frame, when flood comes temporarily, the water level around the transformer substation rises, the floating plug floats upwards to the conical part to be in contact with the inclined plane to realize sealing, and as long as the water level does not fall, the floating plug does not fall, so that the sealing effect on the flood is realized.

The base includes flat portion and depressed part, and on concrete foundation was arranged in to the flat portion, the depressed part undercut and with soil contact, be equipped with a plurality of siphons in the depressed part, the depressed part communicates the box interior air up, the siphon upper end is located the depressed part, the siphon lower extreme passes the depressed part wall and inserts in the soil. As aforementioned, when the air humidity around the transformer substation is big, can not flow large-traffic air and get into the box and dispel the heat in, prior art either dries, or sacrifices heat dispersion, and when the fan induced air back to back formed the low pressure region, although guaranteed the insulating properties in the transformer substation, the heat-sinking capability is limited, and at this moment, the siphon is because inserted in the soil, so, it can siphon the low temperature water in some soil to the siphon upper end, be the low pressure region around the upper end, the water evaporation effect reinforcing, the temperature in the box just can be obviously reduced in evaporation of a small amount of water, because water heat of vaporization is very big, and a small amount of water evaporation can not condense on electric component, because two conditions of condensing: the temperature is reduced, the pressure rise is not satisfied, and the influence on the insulation performance in the box body is limited.

The siphon comprises a sheath and a cotton core, wherein a spike on the lower part of the sheath is inserted into soil, the top end of the sheath is opened and positioned in the concave part, the cotton core is arranged in the sheath, and the side surface of the part of the sheath positioned in the soil is provided with a water hole. The cotton core is as siphon executive component, and some little moisture in the drainage soil disperses at the top of cotton core, because is the siphon, so, moisture can not be from the cotton core top drippage, and the sheath is the insertion effect when playing protection and installation.

And a filter screen is arranged at one end of the vent hole outside. The filter screen prevents that great dust from getting into the box, moreover, two fans only need the air supply of alternative direction, just can blow away the debris that filter in turn.

Compared with the prior art, the invention has the following beneficial effects: the invention prevents rainwater from impacting and scattering into the box body by changing the positions of the vent holes, the double fans can be overlapped for increasing air quantity, a low-pressure area is formed in the box body for preventing moisture from condensing when the outside air humidity is higher, the siphon can guide a little soil moisture to have evaporation effect in the box body, the heat of the quantity of vaporization heat is absorbed, and the heat dissipation effect is more obvious.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic view of the cooling air flow of the present invention;

FIG. 4 is a schematic flow diagram of the present invention with fans blowing in series;

FIG. 5 is a schematic view of the flow of the fan of the present invention during back-to-back blowing;

FIG. 6 is view A of FIG. 5;

FIG. 7 is a schematic view of the structure of the siphon tube of the present invention.

In the figure: 1-box body, 2-top cover, 21-cover body, 22-clapboard, 23-vent hole, 231-inclined plane, 24-floating body plug, 241-conical part, 3-box door, 4-base, 41-flat part, 42-concave part, 43-siphon, 431-sheath, 4311-water through hole, 432-cotton core, 5-ventilator set, 51-fan, 52-cold air port, 53-hot air port and 6-transformer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides the following technical solutions:

the utility model provides a prefabricated transformer substation of compact case formula, the transformer substation includes box 1, top cap 2, chamber door 3, base 4 and transformer 6, and 2 lids of top cap are on 1 upper portions of box, and chamber door 3 is seted up to 1 side of box, and 1 bottom of box sets up base 4, and in box 1, its characterized in that was arranged in to transformer 6: the top cap 2 includes lid 21, baffle 22, and lid 21 covers 1 upper end of box, sets up vertical baffle 22 in the middle of in the lid 21, and the lid 21 level extension of baffle 22 both sides stretches out box 1 and goes up the edge, and the border lower surface that lid 21 stretched out box 1 and goes up the edge sets up air vent 23, sets up ventilator unit 5 in box 1 or the lid 21, and ventilator unit 5 gets into and discharges box 1 with external wind drainage via air vent 23. The positions of the ventilation holes are arranged at the positions, facing downwards, of the edges of the top cover 2, an eave structure is formed, and even if rain is heavy and wind is heavy, the transformer 6 which influences the inside in the box body cannot fly into the box body from the side impact in rainy days.

The ventilator unit 5 includes two fans 51, the two fans 51 are respectively disposed on two sides of the partition 22, and the fans 51 are reversible axial fans. The two fans 51 can be used in combination, the flowing state of radiating air is improved, the flow rate of the axial flow fan is large, external air can be sucked from the vent hole 23 on one side, passes through the fans 51, is sent into the box body 1, then rises from one fan 51, is bent and is discharged from the other vent hole 23.

As shown in fig. 4, two blowers 51 blow air in series. The two fans 51 blowing in series have the air supply directions of one fan above the other fan, and are overlapped to form large-flow radiating air flow, and when the humidity of the ambient air is not high, the large-flow air can increase the radiating effect.

As shown in fig. 5, two fans 51 blow air in opposite directions, and the fans 51 operate at unequal powers. The air supply directions of the two fans are all from the inside of the box body 1 to the outside, however, because the power is unequal, the main melody flow direction of the heat dissipation air flow is based on the air blowing direction of the high-power fan, namely the air direction flowing from the left side to the right side in fig. 5, under the working condition that back-to-back air blowing applies large ambient air humidity, the ambient air humidity is large, large-flow high-humidity air directly enters the transformer substation, adverse effects can be generated on some electric parts, the insulation performance can be affected at some positions, although the air flow with unchanged humidity is introduced in a back-to-back air blowing arrangement mode, because the fans all blow air outwards, a low-pressure area is formed inside the box body 1, in the area, the air pressure is lower than the external atmospheric pressure to a certain degree, under the low-pressure condition, although the proportion of water vapor components in the air is unchanged, the water vapor partial pressure is reduced, being lower than the saturated vapor pressure under this air temperature more, being difficult to condense into water more, preventing that the air current humidity that is used for the heat dissipation from producing adverse effect, moreover, under the low pressure condition, the insulating degree of air improves, has also further prevented the risk factor of electrical component in the box 1.

As shown in fig. 3, two branch pipes are respectively arranged at one end of the fan 51 facing the inside of the box 1, one branch pipe is inserted into the bottom of the inside of the box 1 and is provided with a cold air port 52 at the end, the other branch pipe is provided with a hot air port 53 at the end, the hot air port 53 is located at the top of the inside of the box 1, check valves are respectively arranged on the two branch pipes, the air sent into the box 1 by the fan 51 is blown out from the cold air port 52, and the hot air in the box 1 reaches the fan 51 from the hot air port 53. Two fans 51 are as the power part that blows in box 1 occasionally, need the hot-air outflow box in the drainage box 1 occasionally, and the gas that gets into in the box 1 is generally the air that will be used for the cooling, is cold air, and density is great, and the gas that discharges in the box 1 generally is hot-air, and density is low, floats in box 1 upper portion, and cold air blows off from the bottom in the box 1, is drained away from upper portion and can let the heat exchange more abundant. The presence of the one-way valve allows the flow of air to be assured to follow the intended path.

The opening and closing contact surface of the box door 3 and the box body 1 is provided with a sealing gasket, the top cover 2 further comprises a water blocking structure, and when flood occurs around the transformer substation, the water blocking structure blocks water from passing through the vent hole 23. When flood occurs around the transformer substation and the transformer substation is flooded by water, water cannot enter the box body 1 through the box door 3 due to the existence of the sealing gasket, only the path of the vent holes 23, the fan 51 and the cold air hole 52 is left in the box body 1 and outside, the vent holes 23 need to be plugged together during flooding, at the moment, the heat dissipation effect of electrical components in the box bodies such as the transformer 6 and the like does not need to be considered any more, heat can be obviously taken away due to the contact of surrounding water bodies and the wall surface of the box body 1, and at the moment, the safety of the transformer substation needs to be placed at the head position.

The water blocking structure is a floating body plug 24, an inclined plane 231 is arranged at the downward end of the vent hole 23, the floating body plug 24 is integrally made of rubber, a conical part 241 is arranged at the lower part of the floating body plug 24, the shape of the upper side surface of the conical part 241 is matched with the inclined plane 231, and the upper part of the floating body plug 24 penetrates through the vent hole 23 and is supported by a supporting guide frame. As shown in fig. 6, when there is no water outside, the floating body plug 24 naturally drops to the position where it is held by the support guide frame, and when the flood comes, the water level around the substation rises, the floating body plug 24 floats up until the tapered portion 241 contacts with the inclined surface 231 to realize sealing, and as long as the water level does not drop, the floating body plug 24 does not drop, thereby realizing sealing action against the flood.

As shown in fig. 2 and 5, the base 4 comprises a flat part 41 and a concave part 42, the flat part 41 is arranged on a concrete foundation, the concave part 42 is concave downwards and is contacted with soil, a plurality of siphon pipes 43 are arranged in the concave part 42, the concave part 42 is communicated with the air in the box body 1 upwards, the upper ends of the siphon pipes 43 are positioned in the concave part 42, and the lower ends of the siphon pipes 43 penetrate through the wall surface of the concave part 42 and are inserted into the soil. As mentioned above, when the humidity of the air around the substation is high, it is unable to guide the large flow of air into the box body for heat dissipation, the prior art either dries or sacrifices heat dissipation performance, and when the fan 51 draws air back to form a low-pressure area as shown in fig. 5, although the insulation performance in the substation is ensured, the heat dissipation capability is limited, and at this time, the siphon 43 is inserted into the soil, so it can siphon some low-temperature water in the soil to the upper end of the siphon, the low-pressure area is around the upper end, the water evaporation effect is enhanced, the temperature in the box body 1 can be significantly reduced by a small amount of water evaporation, because the water evaporation heat is very large, and a small amount of water evaporation can not condense on the electrical components, because of the two conditions of condensation: the temperature is reduced, the pressure rise is not satisfied, and the influence on the insulation performance in the box body 1 is limited.

As shown in fig. 2 and 7, the siphon 43 comprises a sheath 431 and a cotton core 432, the lower part of the sheath 431 is pricked and inserted into the soil, the top end of the sheath 431 is open and is located in the depression 42, the cotton core 432 is arranged in the sheath 431, and the side surface of the part of the sheath 431 located in the soil is provided with a water through hole 4311. The wick 432 is used as a siphon actuator, and the micro water in the drainage soil is dispersed on the top end of the wick 432, because of the siphon, the water can not drop from the top end of the wick 432, and the sheath 431 plays a role in protection and insertion during installation.

A filter screen is arranged at one end of the vent hole 23. The filter screen prevents larger dust from entering the box body 1, and the filtered impurities can be blown away alternately by only alternately blowing air in the two fans 51.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a prefabricated transformer substation of compact case formula, the transformer substation includes box (1), top cap (2), chamber door (3), base (4) and transformer (6), top cap (2) lid is on box (1) upper portion, and chamber door (3) are seted up to box (1) side, and box (1) bottom sets up base (4), and in box (1) was arranged in to transformer (6), its characterized in that: top cap (2) include lid (21), baffle (22), and lid (21) cover box (1) upper end, and the centre sets up vertical baffle (22) in lid (21), and lid (21) horizontal extension of baffle (22) both sides stretches out box (1) and goes up the edge, and the border lower surface that lid (21) stretched out box (1) and go up the edge sets up air vent (23), set up ventilation unit (5) in box (1) or lid (21), ventilation unit (5) get into and discharge box (1) with external wind drainage via air vent (23).

2. A compact box-type prefabricated substation according to claim 1, characterized in that: the ventilator unit (5) comprises two fans (51), the two fans (51) are respectively arranged on two sides of the partition plate (22), and the fans (51) are reversible axial flow fans.

3. A compact box-type prefabricated substation according to claim 2, characterized in that: the two fans (51) are connected in series for blowing.

4. A compact box-type prefabricated substation according to claim 2, characterized in that: the two fans (51) blow air in a back direction, and the running power of the fans (51) is unequal.

5. A compact box-type prefabricated substation according to claim 2, characterized in that: fan (51) set up two way branch pipes respectively towards the one end in box (1), and branch pipe inserts bottom and sets up cold wind mouth (52) at the tip in box (1) all the way, and the tip of another way branch pipe is hot-blast mouth (53), hot-blast mouth (53) are located box (1) internal top, set up the check valve respectively on two way branch pipes, and fan (51) send into the gas in box (1) and blow off from cold wind mouth (52), and hot-blast air in box (1) arrives fan (51) from hot-blast mouth (53).

6. A compact box-type prefabricated substation according to claim 1, characterized in that: the opening and closing contact surface of the box door (3) and the box body (1) is provided with a sealing gasket, the top cover (2) further comprises a water blocking structure, and when flood occurs around a transformer substation, the water blocking structure prevents water from passing through the vent hole (23).

7. A compact box-type prefabricated substation according to claim 2, characterized in that: the water blocking structure is a floating body plug (24), an inclined plane (231) is arranged at the downward end of the vent hole (23), the floating body plug (24) is integrally made of rubber, a conical part (241) is arranged at the lower part of the floating body plug (24), the shape of the upper side surface of the conical part (241) is matched with the inclined plane (231), and the upper part of the floating body plug (24) penetrates through the vent hole (23) and is supported by a supporting guide frame.

8. A compact box-type prefabricated substation according to claim 4, characterized in that: base (4) are including flat portion (41) and depressed part (42), and on concrete foundation was arranged in to flat portion (41), depressed part (42) undercut and contact with soil, be equipped with a plurality of siphons (43) in depressed part (42), air in depressed part (42) intercommunication box (1) up, siphon (43) upper end is located depressed part (42), and siphon (43) lower extreme passes depressed part (42) wall and inserts in the soil.

9. A compact box-type prefabricated substation according to claim 8, characterized in that: the siphon (43) comprises a sheath (431) and a cotton core (432), wherein a spike at the lower part of the sheath (431) is inserted into soil, the top end of the sheath (431) is open and is positioned in the concave part (42), the cotton core (432) is arranged in the sheath (431), and a water through hole (4311) is formed in the side surface of the part, positioned in the soil, of the sheath (431).

10. A compact box-type prefabricated substation according to claim 2, characterized in that: and a filter screen is arranged at one end outside the vent hole (23).