CN209948458U - Compact semi-buried transformer substation - Google Patents

Abstract

The utility model discloses a compact semi-buried transformer substation, which comprises a lower box body and an upper box body, wherein a first clapboard which is vertical to an upper bottom wall and is parallel to a first upper side wall is arranged in the upper box body; the upper box body is completely divided into 2 independent chambers by the first partition plate, and the chamber close to the second upper side wall is a low-pressure chamber; a second partition plate which is perpendicular to the upper bottom wall and the first partition plate is arranged in the other chamber, and the other chamber is completely divided into an operation chamber and a high-pressure chamber by the second partition plate; the high-pressure chamber is close to the upper third side wall; the compact semi-buried transformer substation provided by the utility model divides the box body into an upper box body and a lower box body; the volume and the floor area of the overground part of the transformer substation are reduced, and the lower box body of the underground part can perform better heat dissipation and cooling on the transformer; the advantages of box-type substation and buried substation have fully been combined, solve traditional box-type substation because of volume and area are great, do not conform to the problem of present box-type substation's compactification development trend.

Description

Compact semi-buried transformer substation

Technical Field

The utility model relates to an electrical equipment field, in particular to half formula transformer substation of burying of compact.

Background

A box-type substation (called a box transformer substation for short), also called a pre-installed substation or a pre-installed substation; the high-voltage switch equipment, the distribution transformer and the low-voltage distribution device are combined together according to a certain wiring scheme and are arranged in a movable box body. With the rapid development of modern construction of cities in China, the urban power distribution network is continuously updated and transformed, and box transformers are widely applied.

The traditional box transformer substation adopts a structural arrangement mode of a structure in a shape like the Chinese character 'mu' or 'pin', namely, high-voltage switch equipment, a distribution transformer and a low-voltage distribution device are arranged in a transformer substation in a shape like the Chinese character 'mu' or 'pin' in the overlooking direction. Although the structure of the arrangement mode is clear, the arrangement mode is not in line with the trend of the compaction development of the existing box-type substation due to large volume and occupied area.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a compact partly buries formula transformer substation aims at solving traditional case and becomes because of volume and area are great, is not conform to the problem of present box-type transformer substation's compactification development trend.

In order to achieve the above object, the present invention provides a technical solution:

a compact semi-buried transformer substation comprises a lower box body and an upper box body, wherein the lower box body is in a cuboid shape without a top cover; the lower box body comprises a first lower side wall, a second lower side wall, a third lower side wall, a fourth lower side wall and a lower bottom wall, wherein the first lower side wall and the second lower side wall are oppositely arranged;

the upper box body is cuboid; the upper box body comprises a first upper side wall and a second upper side wall which are oppositely arranged, a third upper side wall and a fourth upper side wall which are oppositely arranged, and an upper top wall and an upper bottom wall which are oppositely arranged;

the external dimension of the horizontal section of the upper box body is consistent with that of the horizontal section of the lower box body, and the first lower side wall, the second lower side wall, the third lower side wall and the fourth lower side wall are fixedly connected with the lower side surface of the upper bottom wall so that the upper box body and the lower box body are combined into a whole;

a first partition plate which is perpendicular to the upper bottom wall and parallel to the first upper side wall is arranged in the upper box body; the first partition plate completely divides the upper box body into 2 independent chambers, and the chamber close to the second upper side wall is a low-pressure chamber; a second partition plate which is perpendicular to the upper bottom wall and perpendicular to the first partition plate is arranged in the other chamber, and the other chamber is completely divided into an operation chamber and a high-pressure chamber by the second partition plate; the high pressure chamber is close to the third upper side wall;

the substation further comprises: a high voltage cabinet, a low voltage cabinet and a transformer; the low-voltage cabinet set up in the low-voltage chamber, the high-voltage board set up in the high-voltage chamber, the transformer set up in the lower box.

Preferably, the peripheral edge of the lower side surface of the upper bottom wall is provided with a circumferential groove; the direction of the notch of the circumferential groove is vertical downwards;

the first lower side wall, the second lower side wall, the third lower side wall and the fourth lower side wall can be embedded in the circumferential groove; the wall thicknesses of the first lower side wall, the second lower side wall, the third lower side wall and the fourth lower side wall are consistent and equal to the width of the notch of the circumferential groove;

the first lower side wall, the second lower side wall, the third lower side wall and the fourth lower side wall are all provided with a plurality of middle screw holes; the circumferential groove comprises an inner groove edge and an outer groove edge; the inner groove edge is provided with a plurality of inner screw holes, and the outer groove edge is provided with a plurality of outer screw holes; the inner threaded holes and the outer threaded holes are arranged in a one-to-one correspondence manner, and the inner threaded holes and the corresponding outer threaded holes are arranged in a right opposite manner;

the middle screw holes and the outer screw holes are arranged in a one-to-one correspondence manner; when the first lower side wall, the second lower side wall, the third lower side wall and the fourth lower side wall are all embedded in the circumferential groove, the middle screw hole and the corresponding outer screw hole are arranged oppositely, and fixing bolts penetrate through the outer screw hole, the corresponding middle screw hole and the corresponding inner screw hole;

the middle screw hole, the outer screw hole and the inner screw hole are circular holes and have the same aperture.

Preferably, when the first lower sidewall, the second lower sidewall, the third lower sidewall and the fourth lower sidewall are all embedded in the circumferential groove, the tops of the first lower sidewall, the second lower sidewall, the third lower sidewall and the fourth lower sidewall are all attached to the top of the inner groove of the circumferential groove.

Preferably, an air inlet axial flow fan is arranged in the middle of the upper top wall and close to the first upper side wall; the air inlet end of the air inlet axial flow fan faces the outside of the upper box body, and the air outlet end of the air inlet axial flow fan is communicated with an air inlet pipe;

the top wall is provided with an air inlet at the high-pressure chamber; the other end of the air inlet pipe is communicated with the high-pressure chamber through the air inlet;

an air outlet axial flow fan is arranged in the middle of the upper top wall and close to the second upper side wall; the air outlet end of the air outlet axial flow fan faces the outside of the upper box body, and the air inlet end of the air outlet axial flow fan is communicated with an air outlet pipe;

the top wall is provided with an air outlet at the low-pressure chamber; the other end of the air outlet pipe is communicated with the low-pressure chamber through the air outlet;

the upper bottom wall of the high-pressure chamber is provided with a first ventilation opening close to the first upper side wall, and the upper bottom wall of the low-pressure chamber is provided with a second ventilation opening close to the second upper side wall.

Preferably, temperature sensors are arranged in the low-pressure chamber, the high-pressure chamber and the lower box body; the low-pressure chamber is also internally provided with a first controller; the temperature sensor, the air inlet axial flow fan and the air outlet axial flow fan are all connected with the first controller.

Preferably, the top of the upper box body is also provided with a slope-shaped box top; the bottom edge of the box top is lower than the upper top wall; the box top completely covers the air inlet axial flow fan, the air inlet pipe, the air outlet axial flow fan and the air outlet pipe.

Preferably, the lower bottom wall is provided with a water collecting opening, and the water collecting opening is communicated with a vertically arranged water collecting pipe;

the other end of the water collecting pipe is communicated with a water collecting tank arranged below the lower box body; the lower part of the water collecting tank is communicated with a water outlet pipe; the water outlet pipe is communicated with a municipal sewer pipeline; and a water pump is communicated between the water outlet pipe and the water collecting tank.

Preferably, a liquid level sensor is arranged in the water collecting tank; a second controller is also arranged in the low-pressure chamber; the water pump and the liquid level sensor are both connected with the second controller.

Preferably, the fourth upper side wall is provided with an access door at the operating room; the first partition board is provided with a low-pressure door at the operating room; the second partition plate is provided with a high-pressure door at the operating room;

the upper bottom wall is provided with an inlet and an outlet at the operating room; the upper bottom wall is also hinged with a sealing cover plate which can seal the inlet and the outlet.

Compared with the prior art, the utility model discloses possess following beneficial effect at least:

through the technical scheme, the compact semi-buried transformer substation provided by the utility model divides the box body into the upper box body and the lower box body; the lower box body is provided with a transformer, and the upper box body is provided with a low-voltage cabinet and a high-voltage cabinet; burying the lower box body underground, and exposing the upper box body out of the ground; the volume and the floor area of the overground part of the transformer substation are reduced, and the lower box body of the underground part can perform better heat dissipation and cooling (the underground temperature is lower) on the transformer; the overhaul operation of the low-voltage cabinet and the high-voltage cabinet by operators is not influenced; the advantages of box-type substation and buried substation have fully been combined, solve traditional box-type substation because of volume and area are great, do not conform to the problem of present box-type substation's compactification development trend.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic view of an appearance three-dimensional structure of an embodiment of a compact semi-buried substation of the present invention;

fig. 2 is a schematic front internal structure diagram of an embodiment of the compact semi-buried substation of the present invention;

fig. 3 is a schematic rear internal structure diagram of an embodiment of the compact semi-buried substation of the present invention;

fig. 4 is a schematic side internal structure diagram of an embodiment of the compact semi-buried substation of the present invention;

fig. 5 is a schematic top view (with the top removed) of an embodiment of a compact semi-buried substation according to the present invention;

fig. 6 is a schematic view of the top view of an embodiment of the compact semi-buried substation of the present invention;

fig. 7 is a schematic view of a fitting installation structure of a circumferential groove and a fourth lower side wall of an embodiment of the compact semi-buried substation of the present invention;

fig. 8 is a sectional view of the first ventilation opening and the first ventilation pipe of an embodiment of the compact semi-buried substation.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

The utility model provides a compact partly buries formula transformer substation.

Referring to fig. 1 to 8, a compact semi-buried substation includes a lower box 700 and an upper box 100, where the lower box 700 is a cuboid without a top cover; the lower case 700 includes first and second lower sidewalls 720 and 730 oppositely disposed, third and fourth lower sidewalls 740 and 750 oppositely disposed, and a lower bottom wall 710.

The upper box 100 is rectangular; the upper case 100 includes first and second upper sidewalls 130 and 140 disposed opposite to each other, third and fourth upper sidewalls 150 and 160 disposed opposite to each other, and upper top and bottom walls 110 and 120 disposed opposite to each other.

The external dimension of the horizontal section of the upper box 100 is consistent with the external dimension of the horizontal section of the lower box 700, and the first lower side wall 720, the second lower side wall 730, the third lower side wall 740 and the fourth lower side wall 750 are all fixedly connected with the lower side of the upper bottom wall 120, so that the upper box 100 and the lower box 700 are combined into a whole; when the lower box body 700 and the upper box body 100 are connected in a sealing mode, the requirement for the sealing performance of the box body when the lower box body 700 and the upper box body 100 are buried underground is met.

A first partition 210 perpendicular to the upper bottom wall 120 and parallel to the first upper sidewall 130 is disposed in the upper box 100; the first partition 210 completely divides the upper case 100 into 2 independent chambers, and the chamber adjacent to the second upper sidewall 140 is a low pressure chamber 230; a second partition plate 220 perpendicular to the upper bottom wall 120 and perpendicular to the first partition plate 210 is disposed in the other chamber, and the second partition plate 220 completely divides the other chamber into an operation chamber 250 and a high pressure chamber 240; the high pressure chamber 240 is adjacent to the third upper sidewall 150. Generally, the high pressure chamber 240 has a volume greater than the operator's chamber 250, but the operator's chamber 250 is sized to accommodate access by maintenance personnel.

The transformer substation also comprises: a high voltage cabinet 320, a low voltage cabinet 310, and a transformer 330; the low-voltage cabinet 310 is disposed in the low-voltage chamber 230, the high-voltage cabinet 320 is disposed in the high-voltage chamber 240, and the transformer 330 is disposed in the lower case 700.

Specifically, when the device is installed, the lower case 700 is buried in the ground, and the upper case 100 is exposed to the ground.

Through the technical scheme, the compact semi-buried transformer substation provided by the utility model divides the box body into the upper box body 100 and the lower box body 700; the transformer 330 is arranged in the lower box body 700, and the low-voltage cabinet 310 and the high-voltage cabinet 320 are arranged in the upper box body 100; burying the lower case 700 underground, with the upper case 100 exposed to the ground; the volume and the floor area of the overground part of the transformer substation are reduced, and the lower box body 700 of the underground part can perform better heat dissipation and cooling (the underground temperature is lower) on the transformer 330; the overhaul operation of the low-voltage cabinet 310 and the high-voltage cabinet 320 by operators is not influenced; the advantages of box-type substation and buried substation have fully been combined, solve traditional box-type substation because of volume and area are great, do not conform to the problem of present box-type substation's compactification development trend.

Further, the peripheral edge of the lower side of the upper bottom wall 120 is provided with a circumferential groove; the direction of the notch of the circumferential groove is vertically downward.

Referring to fig. 7, the first lower sidewall 720, the second lower sidewall 730, the third lower sidewall 740, and the fourth lower sidewall 750 can be embedded in the circumferential groove; the wall thicknesses of the first lower sidewall 720, the second lower sidewall 730, the third lower sidewall 740 and the fourth lower sidewall 750 are consistent and equal to the notch width of the circumferential groove; this allows the first, second, third and fourth lower sidewalls 720, 730, 740 and 750 to be better sealed when they are embedded in the circumferential groove.

The first lower sidewall 720, the second lower sidewall 730, the third lower sidewall 740 and the fourth lower sidewall 750 are all provided with a plurality of middle screw holes 920; the circumferential groove comprises an inner groove edge 122 and an outer groove edge 121; the inner slot edge 122 is provided with a plurality of inner screw holes 930, and the outer slot edge 121 is provided with a plurality of outer screw holes 910; the inner screw holes 930 and the outer screw holes 910 are provided in one-to-one correspondence, and the inner screw holes 930 and the corresponding outer screw holes 910 are provided in a positive opposition.

The middle screw holes 920 and the outer screw holes 910 are arranged in a one-to-one correspondence manner; when the first lower sidewall 720, the second lower sidewall 730, the third lower sidewall 740 and the fourth lower sidewall 750 are all embedded in the circumferential groove, the middle screw hole 920 and the corresponding outer screw hole 910 are arranged in a positive-phase manner, and the outer screw hole 910, the corresponding middle screw hole 920 and the corresponding inner screw hole 930 are provided with the fixing bolt 960.

The middle screw hole 920, the outer screw hole 910 and the inner screw hole 930 are all circular holes with uniform diameters. The hole diameter is preferably the same as the screw diameter of the fixing bolt 960.

Through the technical scheme, the combination of the lower box body 700 and the upper box body 100 is more stable, the disassembly is more convenient, and the concrete implementation, installation and transportation are facilitated.

Meanwhile, as shown in fig. 7, when the first lower sidewall 720, the second lower sidewall 730, the third lower sidewall 740 and the fourth lower sidewall 750 are all embedded in the circumferential groove, the tops of the first lower sidewall 720, the second lower sidewall 730, the third lower sidewall 740 and the fourth lower sidewall 750 are all attached to the top of the inner groove of the circumferential groove. This allows the sealability and waterproofness of the combination of the lower case 700 and the upper case 100 to be greatly improved. The outer waterproof rubber layer 940 is coated at the contact part of the outer side surfaces of the first lower side wall 720, the second lower side wall 730, the third lower side wall 740 and the fourth lower side wall 750 and the outer groove edge 121; the inner waterproof rubber layer 950 is also coated on the contact portions of the inner side surfaces of the first lower sidewall 720, the second lower sidewall 730, the third lower sidewall 740 and the fourth lower sidewall 750 and the inner groove edge 122. The waterproof performance is further improved by coating the outer waterproof rubber layer 940 and the inner waterproof rubber layer 950, and the waterproof requirement of being buried underground for a long time can be met.

Referring to fig. 1-5, an axial flow fan 460 is disposed in the middle of the upper top wall 110 and near the first upper sidewall 130; the air inlet end of the axial flow fan 460 faces the outside of the upper box 100, and the air outlet end of the axial flow fan 460 is communicated with an air inlet pipe 470.

The top wall is provided with an air inlet 480 at the high pressure chamber 240; the other end of the air inlet pipe 470 is connected to the high pressure chamber 240 through an air inlet 480.

An air outlet axial flow fan 420 is arranged in the middle of the upper top wall 110 and close to the second upper side wall 140; the air outlet end of the air outlet axial flow fan 420 faces the outside of the upper box 100, and the air inlet end of the air outlet axial flow fan 420 is communicated with an air outlet pipe 430.

The top wall is provided with an air outlet 440 at the low pressure chamber 230; the other end of the air outlet pipe 430 is communicated with the low pressure chamber 230 through an air outlet 440.

The upper bottom wall 120 of the high pressure chamber 240 near the first upper sidewall 130 is opened with a first ventilation opening 630, and the upper bottom wall 120 of the low pressure chamber 230 near the second upper sidewall 140 is opened with a second ventilation opening 610. During specific installation, the high-voltage cabinet 320 cannot shield the first ventilation opening 630, and the low-voltage cabinet 310 cannot shield the second ventilation opening 610.

Through above-mentioned technical scheme for the air current in the transformer substation leads to the formation circulation, abundant and outside air exchange heat, and specific circulation path is: outside → axial-flow blower for intake 460 → intake duct 470 → intake opening 480 → high-pressure chamber 240 → first ventilation opening 630 → lower case 700 → second ventilation opening 610 → low-pressure chamber 230 → discharge opening 440 → discharge duct 430 → axial-flow blower for discharge 420 → outside.

Meanwhile, the air inlet side of the air inlet axial flow fan 460 is covered with an air inlet grille 450, and the air inlet grille 450 can filter the entering air to prevent foreign particles from entering the transformer substation; the air outlet side of the air outlet axial flow fan 420 is covered with an air outlet grille 410, and the air outlet grille 410 can prevent external impurities from entering the air outlet pipe 430, so that the transformer substation is protected.

Referring to fig. 2, 3, 4 and 8, the first vent 630 and the second vent 610 are both circular openings, the first vent 630 is embedded with the first vent pipe 640, and the outer wall of the first vent pipe 640 is completely sealed and attached to the inner wall of the first vent 630; a second ventilation pipe 620 is embedded in the second ventilation opening 610, and the outer pipe wall of the second ventilation pipe 620 is completely sealed and attached to the inner wall of the second ventilation opening 610; through setting up first ventilation pipe 640, avoid ponding in high-pressure chamber 240 to flow into lower box 700 through first ventilation pipe 640 in, through setting up second ventilation pipe 620, avoid ponding in low-pressure chamber 230 to flow into lower box 700 through second ventilation pipe 620.

In order to ensure the effect of preventing accumulated water from flowing into the lower box body 700, the heights of the first vent pipe 640 and the second vent pipe 620 are set to be 5-10 cm, and preferably 5cm in the present embodiment.

Temperature sensors (not shown) are arranged in the low-pressure chamber 230, the high-pressure chamber 240 and the lower box body 700; a first controller (not shown) is also provided in the low pressure chamber 230; the temperature sensor, the axial flow fan 460 and the axial flow fan 420 are all connected to the first controller.

Through above-mentioned technical scheme, can realize intelligent control, specific to this transformer substation: when any temperature sensor detects that the temperature reaches a first preset temperature value (such as 60 ℃), the first controller immediately controls the air inlet axial flow fan 460 and the air outlet axial flow fan 420 to be started, so that the circulation of the heat dissipation air of the transformer substation is greatly accelerated, and the temperatures in the upper box inner body and the lower box 700 are reduced; when the temperatures detected by all the temperature sensors are lower than a first preset temperature value (60 ℃), the first controller controls the air inlet axial flow fan 460 and the air outlet axial flow fan 420 to stop working; therefore, the circulation of the heat dissipation air can be stopped in winter or when the external temperature is lower, so as to achieve the purposes of intelligent control, energy conservation and consumption reduction.

In addition, as shown in fig. 1 to 6, a top of the upper box 100 is further provided with a slope-shaped box top 500; the bottom edge of the roof 500 is lower than the upper roof 110; the roof 500 completely covers the axial flow fan 460, the air inlet duct 470, the axial flow fan 420 and the air outlet duct 430. The box body prevents the axial flow fan 460, the air inlet pipe 470, the axial flow fan 420 and the air outlet pipe 430 from being interfered by the outside, and ensures the working stability of the axial flow fan, the air inlet pipe 470, the axial flow fan 420 and the air outlet pipe 430.

Referring to fig. 1 to 4, the lower bottom wall 710 is provided with a water collecting opening 800, and the water collecting opening 800 is communicated with a vertically arranged water collecting pipe 810. Meanwhile, the upper side of the lower bottom wall 710 is slightly inclined toward the water collection port 800 so that the accumulated water is collected toward the water collection port 800.

The other end of the water collecting pipe 810 is communicated with a water collecting tank 820 arranged below the lower tank body 700; a water outlet pipe 840 is communicated with the lower part of the water collecting tank 820; the water outlet pipe 840 is communicated with a municipal sewer pipeline; a water pump 830 is communicated between the water outlet pipe 840 and the water collecting tank 820. The water pump 830 operates to drain water from the water collection tank 820 to the water outlet tube 840.

Through above-mentioned technical scheme, make the ponding in the lower box 700 discharge fast.

Meanwhile, a liquid level sensor (not shown) is provided in the water collection tank 820; a second controller (not shown) is also provided in the low pressure chamber 230; the water pump 830 and the level sensor are both connected to the second controller. Whether the water level in the water collecting tank 820 works in the water pump 830 or not is linked through the liquid level sensor, specifically, when the liquid level sensor detects that the water level in the water collecting tank 820 reaches a first preset water level value, the second controller immediately controls the water pump 830 to work, accumulated water in the water collecting tank 820 is discharged, the water level is lowered to a second preset water level value (the second preset water level value is lower than the first preset water level value), the second controller immediately controls the water pump 830 to stop working, the intelligent start and stop are realized, and the trouble and the untimely manual operation are avoided.

Referring to fig. 1 to 6, the fourth upper sidewall 160 is provided with an access door 670 at the operation chamber 250; the first partition 210 is provided with a low-pressure door 650 at the operation chamber 250, and the operation panel of the low-voltage cabinet 310 faces the low-pressure door 650; the second partition 220 is provided with a high-pressure door 660 at the operation chamber 250, and meanwhile, the operation panel of the high-voltage cabinet 320 faces the high-pressure door 660; the upper bottom wall 120 is provided with an inlet/outlet 680 at the operation chamber 250; the upper bottom wall 120 is further hinged with a sealing cover 690 capable of sealing the inlet and outlet 680. Through the technical scheme, the transformer substation is convenient for operators to overhaul or maintain.

In addition, dehumidification boxes (not shown) are disposed in the upper box 100 and the lower box 700 to reduce the humidity of the air in the upper box 100 and the lower box 700, so as to ensure the normal operation of each electrical device.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims (9)

1. A compact semi-buried transformer substation comprises a lower box body and an upper box body, and is characterized in that the lower box body is in a cuboid shape without a top cover; the lower box body comprises a first lower side wall, a second lower side wall, a third lower side wall, a fourth lower side wall and a lower bottom wall, wherein the first lower side wall and the second lower side wall are oppositely arranged;

the upper box body is cuboid; the upper box body comprises a first upper side wall and a second upper side wall which are oppositely arranged, a third upper side wall and a fourth upper side wall which are oppositely arranged, and an upper top wall and an upper bottom wall which are oppositely arranged;

the external dimension of the horizontal section of the upper box body is consistent with that of the horizontal section of the lower box body, and the first lower side wall, the second lower side wall, the third lower side wall and the fourth lower side wall are fixedly connected with the lower side surface of the upper bottom wall so that the upper box body and the lower box body are combined into a whole;

a first partition plate which is perpendicular to the upper bottom wall and parallel to the first upper side wall is arranged in the upper box body; the first partition plate completely divides the upper box body into 2 independent chambers, and the chamber close to the second upper side wall is a low-pressure chamber; a second partition plate which is perpendicular to the upper bottom wall and perpendicular to the first partition plate is arranged in the other chamber, and the other chamber is completely divided into an operation chamber and a high-pressure chamber by the second partition plate; the high pressure chamber is close to the third upper side wall;

the substation further comprises: a high voltage cabinet, a low voltage cabinet and a transformer; the low-voltage cabinet set up in the low-voltage chamber, the high-voltage board set up in the high-voltage chamber, the transformer set up in the lower box.

2. A compact semi-buried substation according to claim 1, wherein the peripheral edge of the lower side of the upper bottom wall is provided with a circumferential groove; the direction of the notch of the circumferential groove is vertical downwards;

the first lower side wall, the second lower side wall, the third lower side wall and the fourth lower side wall can be embedded in the circumferential groove; the wall thicknesses of the first lower side wall, the second lower side wall, the third lower side wall and the fourth lower side wall are consistent and equal to the width of the notch of the circumferential groove;

the first lower side wall, the second lower side wall, the third lower side wall and the fourth lower side wall are all provided with a plurality of middle screw holes; the circumferential groove comprises an inner groove edge and an outer groove edge; the inner groove edge is provided with a plurality of inner screw holes, and the outer groove edge is provided with a plurality of outer screw holes; the inner threaded holes and the outer threaded holes are arranged in a one-to-one correspondence manner, and the inner threaded holes and the corresponding outer threaded holes are arranged in a right opposite manner;

the middle screw holes and the outer screw holes are arranged in a one-to-one correspondence manner; when the first lower side wall, the second lower side wall, the third lower side wall and the fourth lower side wall are all embedded in the circumferential groove, the middle screw hole and the corresponding outer screw hole are arranged oppositely, and fixing bolts penetrate through the outer screw hole, the corresponding middle screw hole and the corresponding inner screw hole;

the middle screw hole, the outer screw hole and the inner screw hole are circular holes and have the same aperture.

3. The compact semi-buried substation of claim 2, wherein when the first, second, third and fourth lower side walls are all embedded in the circumferential groove, tops of the first, second, third and fourth lower side walls are all attached to tops of inner grooves of the circumferential groove.

4. The compact semi-buried substation of claim 1, wherein an axial flow fan is arranged in the middle of the upper top wall and close to the first upper side wall; the air inlet end of the air inlet axial flow fan faces the outside of the upper box body, and the air outlet end of the air inlet axial flow fan is communicated with an air inlet pipe;

the top wall is provided with an air inlet at the high-pressure chamber; the other end of the air inlet pipe is communicated with the high-pressure chamber through the air inlet;

an air outlet axial flow fan is arranged in the middle of the upper top wall and close to the second upper side wall; the air outlet end of the air outlet axial flow fan faces the outside of the upper box body, and the air inlet end of the air outlet axial flow fan is communicated with an air outlet pipe;

the top wall is provided with an air outlet at the low-pressure chamber; the other end of the air outlet pipe is communicated with the low-pressure chamber through the air outlet;

the upper bottom wall of the high-pressure chamber is provided with a first ventilation opening close to the first upper side wall, and the upper bottom wall of the low-pressure chamber is provided with a second ventilation opening close to the second upper side wall.

5. A compact semi-buried substation according to claim 4, wherein temperature sensors are provided in the low pressure chamber, the high pressure chamber and the lower box; the low-pressure chamber is also internally provided with a first controller; the temperature sensor, the air inlet axial flow fan and the air outlet axial flow fan are all connected with the first controller.

6. The compact semi-buried substation of claim 4, wherein the top of the upper box body is further provided with a sloping box top; the bottom edge of the box top is lower than the upper top wall; the box top completely covers the air inlet axial flow fan, the air inlet pipe, the air outlet axial flow fan and the air outlet pipe.

7. The compact semi-buried substation according to claim 1, wherein the lower bottom wall is provided with a water collecting opening, and the water collecting opening is communicated with a vertically arranged water collecting pipe;

the other end of the water collecting pipe is communicated with a water collecting tank arranged below the lower box body; the lower part of the water collecting tank is communicated with a water outlet pipe; the water outlet pipe is communicated with a municipal sewer pipeline; and a water pump is communicated between the water outlet pipe and the water collecting tank.

8. A compact semi-buried substation according to claim 7, wherein a level sensor is provided in the header tank; a second controller is also arranged in the low-pressure chamber; the water pump and the liquid level sensor are both connected with the second controller.

9. A compact semi-buried substation according to any one of claims 1 to 8, wherein the fourth upper side wall is provided with an access door at the operating room; the first partition board is provided with a low-pressure door at the operating room; the second partition plate is provided with a high-pressure door at the operating room;

the upper bottom wall is provided with an inlet and an outlet at the operating room; the upper bottom wall is also hinged with a sealing cover plate which can seal the inlet and the outlet.

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