CN114336358A - Combined box-type substation - Google Patents
Combined box-type substation Download PDFInfo
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- CN114336358A CN114336358A CN202210244780.9A CN202210244780A CN114336358A CN 114336358 A CN114336358 A CN 114336358A CN 202210244780 A CN202210244780 A CN 202210244780A CN 114336358 A CN114336358 A CN 114336358A
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Abstract
The invention relates to the technical field of box-type substations, and discloses a combined box-type substation, which comprises a box body structure arranged on the outer side of a substation component, wherein a movable base used for moving is arranged at the bottom of the box body structure, a cooling mechanism is arranged on one side of the box body structure, a plurality of lifting structures which are symmetrically distributed are arranged on the lower side of the movable base, the box body structure comprises a double-layer plate structure, a first hollow layer communicated with the cooling mechanism is arranged in the double-layer plate structure, and a plurality of separating pieces which are communicated with the first hollow layer and separate the interior of the box body structure are arranged in the box body structure. The box body structure is assembled with the movable base, so that the box body structure is conveniently conveyed to a working place, the connecting part of the box body structure and the movable base is provided with the clamping groove, and the box body structure and the mounting area are conveniently fixed when the box body structure and the movable base are conveniently fixed, so that the firmness of the box body structure after conveying and mounting can be improved.
Description
Technical Field
The invention relates to the technical field of box-type substations, in particular to a combined box-type substation.
Background
The box-type transformer substation is a high-voltage switch device, a distribution transformer and a low-voltage distribution device, and is factory prefabricated indoor and outdoor compact distribution equipment which is integrated according to a certain wiring scheme, namely, the functions of transformer voltage reduction, low-voltage distribution and the like are organically combined together and installed in a box body structure.
Through retrieval, the Chinese patent discloses a combined box-type substation (publication number: CN 110311319A), which comprises a first-stage bearing anchor rod and a second-stage bearing anchor rod, wherein the first-stage bearing anchor rod and the second-stage bearing anchor rod are respectively sleeved with a fixed sleeve and a bearing sleeve, the fixed sleeve and the bearing sleeve are respectively and rotatably connected with a first-stage loop bar and a first-stage inner bar, and the free end of the first-stage inner bar is slidably sleeved in the free end of the first-stage loop bar.
In the prior art, the box-type substation is usually used in an outdoor environment, so the box-type substation is required to be conveniently installed to a working position after being conveyed to a use place, and the temperature inside the box-type substation is higher during working, so that the box-type substation is required to have good heat dissipation and heat insulation capabilities during working.
Disclosure of Invention
The invention aims to provide a combined box-type substation, which solves the following technical problems:
how to improve the heat dissipation and heat insulation capability of the box-type substation, and further protect internal components when the box-type substation works;
how to assemble the box-type substation and improve the practicability of the assembled box-type substation.
The purpose of the invention can be realized by the following technical scheme:
a combined box-type substation comprises a box-type substation body, wherein the box-type substation body comprises a box body structure arranged on the outer side of a substation component, a movable base used for moving is installed at the bottom of the box body structure, a plurality of lifting structures which are symmetrically distributed are installed on the lower side of the movable base and used for jacking the box body structure after the box body structure and the movable base are separated, so that the box body structure is conveniently carried to the ground from the upper side of the movable base, a cooling mechanism is installed on one side of the box body structure, and the cooling mechanism comprises a pumping system and a heat exchange system;
the box body structure comprises a double-layer plate structure, and a first hollow layer communicated with the cooling mechanism is arranged inside the double-layer plate structure;
the box body structure is internally provided with a plurality of separators communicated with the first hollow layer, and the separators are used for separating the interior of the box body structure into different assembly areas so as to accommodate different components in the transformer substation structure;
the top of the box body structure is provided with a cover plate structure, a third hollow layer is arranged in the cover plate structure, and one side of the cover plate structure is provided with a plurality of connecting pipe fittings for communicating the third hollow layer with the cooling mechanism;
the first hollow layer, the separating piece and the third hollow layer are filled with heat dissipation media for conveying heat, and a pumping system in the cooling mechanism is used for circulating the heat dissipation media among the first hollow layer, the separating piece, the third hollow layer and the heat exchange system.
As a further scheme of the invention: the inside fixedly connected with a plurality of double-deck plate structure is the support piece of matrix arrangement, support piece's both ends contact with double-deck plate structure's inner wall respectively for support double-deck plate structure from inside, support piece's both ends are the round platform shape, are used for the increase and double-deck plate structure's area of contact.
As a further scheme of the invention: the separator includes the plate body structure, the equal fixedly connected with curb plate in both ends of plate body structure, the screw hole that does not communicate with cooling body is offered at the position that double-deck plate structure and curb plate are connected for conveniently assemble plate body structure and double-deck plate structure, and the both ends of plate body structure all are provided with the extension position that extends to first cavity in situ portion, extend all to be provided with seal structure between position and the double-deck plate structure, are used for avoiding first cavity in situ portion and second cavity in situ portion's heat dissipation medium problem that the leakage appears.
As a further scheme of the invention: the apron structure includes apron layer, the third hollow layer is seted up in the inside of apron layer, the upper surface on apron layer inclines to both sides for prevent that sleet from piling up at the upside of apron structure, and the side on apron layer extends to the outside of box structure, is used for protecting the box structure.
As a further scheme of the invention: the lower fixed surface of apron layer is connected with the joint frame, the last fixed surface of box structure is connected with the screwed plate that corresponds with the joint frame to the convenience is assembled apron structure and box structure.
As a further scheme of the invention: the inside fixedly connected with baffle of third hollow layer, the baffle divides the inside of third hollow layer into first flow region and second flow region, the intercommunicating pore has been seted up to the one end of baffle for with first flow region and second flow region be linked together, thereby realize heat-dissipating medium's flow.
As a further scheme of the invention: a plurality of connect the pipe fitting include with apron layer fixed connection's connection cylinder, a plurality of connect the cylinder to set up two sets ofly, two sets of connect the cylinder respectively with first flow region and the regional intercommunication of second flow, a plurality of connect the cylinder including the sizing section of cylinder and conical reducing section, the top of two sets of a sizing section is linked together with the cavity layer in the third, cooling body's output and input all are provided with the equipment pipe of being connected with two sets of connection cylinder reducing sections, all are provided with the sealing member between equipment pipe and the two sets of connection cylinder reducing sections for the leakproofness between increase connection cylinder and the cooling body prevents that heat-radiating medium from leaking.
As a further scheme of the invention: and the side surfaces of the connecting columns and the side surfaces of the corresponding assembling pipes in the cooling mechanism are fixedly connected with a screw joint plate for screw joint, so that the firmness between the connecting pipe fitting and the cooling mechanism is improved.
As a further scheme of the invention: the last fixed surface of moving base is connected with the screw thread post of a plurality of symmetric distribution, the joint groove that quantity and screw thread post correspond is seted up to the lower surface of box structure, the joint groove is used for joint to the outside of screw thread post, a plurality of the equal spiro union in inside of screw thread post has the spiro union piece, a plurality of the top of screw thread post all is provided with the joint position that extends to the laminating to the box structure outside to assemble box structure and moving base, when removing, increase the stability of device.
As a further scheme of the invention: a plurality of the lifting structure all includes the equipment frame, the elastic component that the side fixedly connected with a plurality of equipment frame and removal base are connected, and a plurality of the equal fixedly connected with climbing mechanism in inside of equipment frame, the intercommunication groove that quantity and lifting structure are the same is seted up to the inside of removal base, and the piece is lifted to the output of each climbing mechanism is installed, lifts the piece and can contact with the box structure along the intercommunication groove that corresponds, behind the box structure with the removal base split, can carry out the lifting with the box structure to when lifting the box structure, climbing mechanism's bottom drives the equipment frame and contacts through tensile elastic component and ground, and then reduces the effort between lifting structure and the removal base, avoids the lifting structure and the damage to appear in the connection position of removal base.
As a further scheme of the invention: the use method of the combined box-type substation comprises the following steps:
the method comprises the following steps: assembling each separator and the box body structure, separating the interior of the box body structure into different installation areas, and installing each component of the transformer substation into the corresponding installation area;
step two: hoisting the cover plate structure to the upper side of the box body structure, assembling the cover plate structure and the box body structure, and assembling the connecting pipe fitting and the cooling mechanism;
step three: hoisting the box body structure to the upper side of the movable base, and assembling the box body structure and the movable base;
step four: the box structure is moved to a use place through the movable base, and then the box structure is fixed, and a primary connecting line and a secondary connecting line are connected with a transformer substation in the box structure.
As a further scheme of the invention: the method for fixing the box body structure in the fourth step comprises the following steps:
a1: after the movable base is moved to the fixed part, the movable structure in the movable base is locked;
a2: the ground leveling of fixed position is handled, obtain the flattening region, pour out the region of placing that highly is 13-20cm in the flattening region afterwards, the area of placing the region is 1.2-1.3 times of box structure bottom area, prevent ponding entering box structure's inside, pour the concrete column that the diameter is not more than the joint groove in advance placing the region, with box structure and mobile base split, jack-up box structure through the lifting structure, place regional upside with box structure handling again, establish each joint groove cover in the box structure to the outside that corresponds the concrete column.
The invention has the beneficial effects that:
the box body structure is assembled with the movable base, so that the box body structure is conveniently conveyed to a working place, and the connecting part of the box body structure and the movable base is provided with the clamping groove, so that the box body structure and the mounting area are conveniently fixed when the box body structure and the movable base are conveniently fixed, and the firmness of the box body structure after conveying and mounting can be improved;
the lifting structure is arranged in the movable base, when the lifting structure does not work, the lifting structure is stored in the movable base through the internal elastic piece, when the lifting structure works, the lifting structure can move to the ground after contacting with the bottom of the box body structure by stretching the internal elastic piece, and can be lifted upwards by the box body structure under the support of the ground after contacting with the ground, so that a worker can conveniently separate the box body structure from the movable base, and the box body structure is conveniently hoisted to a mounting position;
compared with the prior art, the box-type substation is provided with the areas where the heat dissipation media circulate inside the box body structure, the cover plate structure and the partition, the heat dissipation capacity is further improved on the basis of air cooling, the box body structure and the cover plate structure are provided with two layers, and the heat dissipation media are filled inside the box body structure and the cover plate structure, so that the heat insulation capacity can be improved, and the substation components inside the box body structure are prevented from being negatively affected by the external environment.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a side view of the present invention;
FIG. 2 is a top sectional view of the case structure of the present invention;
FIG. 3 is an enlarged view of the structure of portion A of FIG. 2 according to the present invention;
FIG. 4 is a partial cross-sectional view of the case structure of the present invention;
FIG. 5 is a partial cross-sectional view of the cover plate structure of the present invention;
fig. 6 is a schematic view of a connection structure between the case structure and the movable base according to the present invention.
In the figure: 110. a box-type substation body; 1. a box structure; 2. a movable base; 3. a lifting structure; 4. a cover plate structure; 5. connecting pipe fittings; 6. a cooling mechanism; 7. a separator; 11. a double-layer plate structure; 12. a first hollow layer; 13. a support member; 71. a plate body structure; 72. a second hollow layer; 73. a side plate; 41. a cover plate layer; 42. a third hollow layer; 43. a partition plate; 44. a communicating hole; 45. a clamping frame; 51. connecting the columns; 52. a screw joint plate; 21. a threaded post; 101. a clamping groove; 102. a screw joint block; 31. an assembly frame; 32. an elastic member; 33. a jacking mechanism.
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 to 6, the present invention is a combined box-type substation, including a box-type substation body 110, where the box-type substation body 110 includes a box structure 1 disposed outside a substation component, a mobile base 2 for movement is installed at the bottom of the box structure 1, a plurality of lifting structures 3 symmetrically distributed are installed at the lower side of the mobile base 2, and are used to jack up the box structure 1 after the box structure 1 and the mobile base 2 are separated, so as to conveniently transport the box structure 1 from the upper side of the mobile base 2 to the ground, a cooling mechanism 6 is installed at one side of the box structure 1, and the cooling mechanism 6 includes a pumping system and a heat exchange system;
the box body structure 1 comprises a double-layer plate structure 11, and a first hollow layer 12 communicated with the cooling mechanism 6 is arranged inside the double-layer plate structure 11;
a plurality of separators 7 communicated with the first hollow layer 12 are installed inside the box body structure 1, and the separators 7 are used for separating the inside of the box body structure 1 into different assembly areas so as to accommodate different components in the transformer substation structure;
the top of the box body structure 1 is provided with a cover plate structure 4, a third hollow layer 42 is arranged in the cover plate structure 4, and one side of the cover plate structure 4 is provided with a plurality of connecting pipe fittings 5 for communicating the third hollow layer 42 with the cooling mechanism 6;
the interiors of the first hollow layer 12, the partition 7 and the third hollow layer 42 are all filled with heat dissipation media for conveying heat, and the pumping system in the cooling mechanism 6 is used for circulating the heat dissipation media among the first hollow layer 12, the partition 7, the third hollow layer 42 and the heat exchange system.
Referring to fig. 3-4, a plurality of supporting members 13 arranged in a matrix are fixedly connected to the inside of the double-layer plate structure 11, two ends of each supporting member 13 are respectively in contact with the inner wall of the double-layer plate structure 11 for supporting the double-layer plate structure 11 from the inside, and two ends of each supporting member 13 are both in a truncated cone shape for increasing the contact area with the double-layer plate structure 11.
The separator 7 includes plate body structure 71, the equal fixedly connected with curb plate 73 in both ends of plate body structure 71, the screw hole that does not communicate with cooling body 6 is seted up at the position that double-deck plate structure 11 and curb plate 73 are connected, be used for conveniently assembling plate body structure 71 and double-deck plate structure 11, and plate body structure 71's both ends all are provided with the extension position that extends to first hollow layer 12 inside, all be provided with seal structure between extension position and the double-deck plate structure 11, be used for avoiding first hollow layer 12 and the inside radiating medium of second hollow layer 72 to appear leaking the problem.
Referring to fig. 5, the cover plate structure 4 includes a cover plate layer 41, a third hollow layer 42 is disposed inside the cover plate layer 41, an upper surface of the cover plate layer 41 is inclined towards two sides for preventing rain and snow from accumulating on an upper side of the cover plate structure 4, and a side of the cover plate layer 41 extends to an outer side of the box structure 1 for protecting the box structure 1.
Lower fixed surface of apron layer 41 is connected with joint frame 45, and the last fixed surface of box structure 1 is connected with the thread plate that corresponds with joint frame 45 to conveniently assemble apron structure 4 and box structure 1.
A partition plate 43 is fixedly connected to the inside of the third hollow layer 42, the partition plate 43 divides the inside of the third hollow layer 42 into a first flow area and a second flow area, and a communication hole 44 is formed at one end of the partition plate 43 and used for communicating the first flow area with the second flow area, so that the flow of the heat dissipation medium is realized.
The connecting pipe fitting 5 of a plurality of includes the connecting cylinder 51 with apron layer 41 fixed connection, a plurality of connecting cylinder 51 sets up two sets ofly, two sets of connecting cylinder 51 communicate with first flow zone territory and second flow zone territory respectively, a plurality of connecting cylinder 51 includes the sizing section of cylinder and conical reducing section, the top and the third cavity 42 of two sets of a plurality of sizing section are linked together, cooling body 6's output and input all are provided with the equipment pipe of being connected with two sets of connecting cylinder 51 reducing sections, all be provided with the sealing member between equipment pipe and the two sets of connecting cylinder 51 reducing sections, a leakproofness for between increase connecting cylinder 51 and the cooling body 6, prevent that heat-radiating medium from leaking.
The side of two sets of connection cylinders 51 and the assembly pipe side that corresponds in the cooling body 6 all fixedly connected with be used for the spiro union board 52 to increase the fastness between connecting pipe fitting 5 and the cooling body 6.
When the cooling mechanism 6 is used, the pumping system in the cooling mechanism 6 pumps the heat dissipation medium in the first hollow layer 12, the second hollow layer 72 and the third hollow layer 42 into the heat exchange system in the cooling mechanism 6, the heat dissipation medium is pumped into the first hollow layer 12 and the third hollow layer 42 after being cooled, the heat dissipation medium flows into each second hollow layer 72 through the first hollow layer 12, and the third hollow layer 42 forms a flow path through the partition plate 43 and the communication hole 44 inside the third hollow layer 42, so that the heat dissipation medium inside the third hollow layer 42 can conveniently flow.
Please refer to fig. 6, the upper surface of the movable base 2 is fixedly connected with a plurality of symmetrically distributed threaded columns 21, the lower surface of the box structure 1 is provided with a plurality of clamping grooves 101 corresponding to the threaded columns 21, the clamping grooves 101 are used for clamping to the outer side of the threaded columns 21, the plurality of threaded columns 21 are all screwed with a screw block 102, the top ends of the plurality of threaded columns 21 are provided with clamping parts extending to the outer side of the box structure 1, so that the box structure 1 and the movable base 2 are assembled, and when moving, the stability of the device is increased.
A plurality of lifting structure 3 all includes equipment frame 31, the elastic component 32 that the side fixedly connected with a plurality of equipment frame 31 is connected with removal base 2, and the equal fixedly connected with climbing mechanism 33 in inside of a plurality of equipment frame 31, the intercommunication groove that quantity and lifting structure 3 are the same is seted up to the inside of removal base 2, the piece is lifted to the output of each climbing mechanism 33 is installed, it can contact with box structure 1 along the intercommunication groove that corresponds to lift the piece, after box structure 1 and removal base 2 split, can lift box structure 1, and when lifting box structure 1, climbing mechanism 33's bottom drives equipment frame 31 and contacts through tensile elastic component 32 and ground, and then reduce the effort between lifting structure 3 and the removal base 2, avoid lifting structure 3 and removal base 2's the position of being connected to appear the damage.
The working principle of the invention comprises the following embodiments:
example 1
Assembling each partition 7 with the box body structure 1, wherein the partition 7 is made of a non-rigid and non-combustible material, so that the extending parts at two ends of the partition 7 are conveniently assembled with the double-layer plate structure 11 of the box body structure 1, during assembly, the sealing structure is firstly installed in the connecting part of the double-layer plate structure 11 and the partition 7, then the extending part of the partition 7 is assembled with the double-layer plate structure 11, then the side plates 73 at two ends of the partition 7 are in threaded connection with the double-layer plate structure 11, the partition 7 is fixed inside the box body structure 1, the inside of the box body structure 1 is divided into different installation areas, and then each component of the transformer substation is installed in the corresponding installation area;
and then the cover plate structure 4 is lifted to the upper side of the box body structure 1, the cover plate structure 4 is assembled with the box body structure 1, when the cover plate structure is assembled, the clamping frame 45 at the bottom of the cover plate structure 4 is aligned with the thread plate at the top of the box body structure 1 and then is in threaded connection, the diameter-variable sections of the connecting cylinders 51 in the connecting pipe fittings 5 are embedded into the assembling pipes of the output end and the input end in the cooling mechanism 6 when the connecting cylinders 51 and the cooling mechanism 6 are aligned, and when the connecting cylinders 51 and the cooling mechanism 6 are embedded, sealing elements are installed between the connecting cylinders 51 and the cooling mechanism 6, and then the threaded connection plates 52 of the connecting pipe fittings 5 and the cooling mechanism 6 are locked through bolts.
With the upside of box structure 1 handling to mobile base 2, assemble box structure 1 and mobile base 2 again, when the equipment, overlap each joint groove 101 in box structure 1 to the outside that corresponds screw thread post 21 on the mobile base 2, lock spiro union piece 102 to screw thread post 21 again in, after the locking, the joint position laminating on joint groove 101 top is to the upside of box structure 1, fixes box structure 1 and mobile base 2.
After moving box structure 1 to the use place through mobile base 2, die the mobile structure lock in mobile base 2 again, can fix box structure 1 to connect first, secondary tie line with the inside transformer substation of box structure 1 can.
Example 2
The assembly method of the box-type substation body 110 is the same as that of the embodiment 1, before the box-type substation body 110 is conveyed to a use place, firstly, the ground of a fixed part in the use place is leveled to obtain a leveling area, then, a placing area with the height of 13-20cm, preferably 15cm, is poured in the leveling area, the area of the placing area is 1.2-1.3 times, preferably 1.2 times, of the area of the bottom of the box-type substation structure 1, accumulated water is prevented from entering the box-type substation structure 1, a concrete column with the diameter not larger than the clamping groove 101 is poured in the placing area in advance, the box-type substation structure 1 is detached from the movable base 2, namely, the screw joint block 102 is detached from the threaded column 21, then, the box-type substation structure 1 is jacked up through the lifting structure 3, when the lifting structure 3 is used, the output end of the jacking mechanism 33 in the lifting structure 3 firstly drives the lifting piece to be in contact with the bottom of the box-type substation structure 1, after the contact, along with climbing mechanism 33's length continuously increases, climbing mechanism 33 will assemble frame 31 downstream through tensile elastic component 32, until the assembly frame 31 contacts ground, can be through lifting a jack-up with box structure 1, place the region with box structure 1 handling again, later with each joint groove 101 cover in box structure 1 establish to the outside that corresponds the concrete column can, last again with the transformer substation connect one, the secondary tie line can.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (8)
1. A combined box-type substation comprises a box-type substation body (110), wherein the box-type substation body (110) comprises a box body structure (1) arranged on the outer side of a substation component, a movable base (2) used for moving is installed at the bottom of the box body structure (1), and a cooling mechanism (6) is installed on one side of the box body structure (1), and the combined box-type substation is characterized in that a plurality of symmetrically-distributed lifting structures (3) are installed on the lower side of the movable base (2);
the box body structure (1) comprises a double-layer plate structure (11), and a first hollow layer (12) communicated with the cooling mechanism (6) is arranged inside the double-layer plate structure (11);
a plurality of separators (7) which are communicated with the first hollow layer (12) and separate the interior of the box body structure (1) are arranged in the box body structure (1);
the top of box structure (1) is installed and is lapped structure (4), third hollow layer (42) have been seted up to apron structure (4) inside, and one side of apron structure (4) is installed and is connected pipe fitting (5) with third hollow layer (42) and a plurality of cooling body (6) intercommunication.
2. A modular substation according to claim 1, characterized in that the interior of the double-deck structure (11) is fixedly connected with a plurality of support members (13) arranged in a matrix, both ends of the support members (13) are truncated cone-shaped and support the inner wall of the double-deck structure (11).
3. A modular substation according to claim 2, characterized in that the partition (7) comprises a plate structure (71), the plate structure (71) being internally provided with a second hollow layer (72) communicating with the first hollow layer (12) of the double plate structure (11).
4. A modular substation according to claim 1, characterized in that the connection pipes (5) comprise connection posts (51) fixedly connected to the cover plate layer (41), a number of the connection posts (51) being provided in two groups, and a number of the connection posts (51) each comprising a sizing section and a conical reducing section.
5. A modular substation according to claim 4, characterized in that the output and input of the cooling mechanism (6) are each provided with an assembly pipe connected to the reducer sections of the two sets of connection columns (51).
6. The combined box-type substation according to claim 1, characterized in that a plurality of symmetrically distributed threaded columns (21) are fixedly connected to the upper surface of the moving base (2), a plurality of clamping grooves (101) which are sleeved on the outer sides of the threaded columns (21) are formed in the lower surface of the box structure (1), and a plurality of screwed connection blocks (102) which are used for fixing the box structure (1) are screwed in the threaded columns (21).
7. The substation according to claim 1, characterized in that the lifting structures (3) each comprise an assembly frame (31), the side of the assembly frame (31) is fixedly connected with a plurality of elastic members (32) connected with the movable base (2), and the inside of the assembly frame (31) is fixedly connected with a jacking mechanism (33).
8. A substation according to claim 1, characterized in that the mobile base (2) has inside it a communication channel for the movement of the outlet end of the lifting structure (3).
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| CN202210244780.9A CN114336358B (en) | 2022-03-14 | 2022-03-14 | Combined box-type substation |
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| CN202210244780.9A CN114336358B (en) | 2022-03-14 | 2022-03-14 | Combined box-type substation |
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| CN114336358A true CN114336358A (en) | 2022-04-12 |
| CN114336358B CN114336358B (en) | 2022-05-24 |
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| CN115149445A (en) * | 2022-09-02 | 2022-10-04 | 东营金丰正阳科技发展有限公司 | Novel box-type substation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115149445A (en) * | 2022-09-02 | 2022-10-04 | 东营金丰正阳科技发展有限公司 | Novel box-type substation |
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| Publication number | Publication date |
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| CN114336358B (en) | 2022-05-24 |
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