CN116706744A - Ventilation structure for box-type substation and box-type substation - Google Patents
Ventilation structure for box-type substation and box-type substation Download PDFInfo
- Publication number
- CN116706744A CN116706744A CN202310981948.9A CN202310981948A CN116706744A CN 116706744 A CN116706744 A CN 116706744A CN 202310981948 A CN202310981948 A CN 202310981948A CN 116706744 A CN116706744 A CN 116706744A
- Authority
- CN
- China
- Prior art keywords
- box
- shaped rod
- concave frame
- transformer substation
- extrusion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 34
- 238000001125 extrusion Methods 0.000 claims description 34
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 13
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 13
- 241001330002 Bambuseae Species 0.000 claims description 13
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 13
- 239000011425 bamboo Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 4
- 241000883990 Flabellum Species 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B7/00—Enclosed substations, e.g. compact substations
- H02B7/06—Distribution substations, e.g. for urban network
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The invention provides a ventilation structure for a box-type transformer substation and the box-type transformer substation, belongs to the technical field of box-type transformer substations, and solves the problem that the normal use of the transformer substation is affected by external dust entering the inside of the transformer substation through a ventilation opening: the transformer substation comprises a transformer substation body, wherein mounting holes are symmetrically formed in two ends of the transformer substation body, a fixed cylinder is fixedly mounted in the mounting holes, a mounting plate is fixedly mounted in one end of the fixed cylinder, a motor is fixedly mounted on the mounting plate, an output shaft is fixedly mounted at the output end of the motor, fan blades are fixedly mounted on the output shaft, a concave frame is fixedly mounted at one end of the fixed cylinder far away from the motor, a sector plate is annularly arranged at the central axis of the fixed cylinder on one side of the concave frame in an array manner, a plurality of sector plates are circularly arranged, an opening mechanism is mounted between the output shaft and the sector plates, and a positioning mechanism is mounted at the outer side of the concave frame; the invention is applied to the field of ventilation of box-type substations.
Description
Technical Field
The invention provides a ventilation structure for a box-type transformer substation and the box-type transformer substation, and belongs to the technical field of box-type transformer substations.
Background
The box-type transformer substation, also called preassembled substation or preassembled substation, is a high-voltage switchgear, a distribution transformer and a low-voltage distribution device. The box-type transformer substation can produce a large amount of heat in the operation process, adopts the fan operation of installing in ventilation hole department to discharge the heat that equipment produced from the ventilation hole under normal condition, however, current fan is when using, and the ventilation hole is in the open state all the time, and under long-time external wind, external dust will enter into the inside of transformer substation through the vent, and the dust is attached on equipment, influences the normal work of transformer substation to the rainwater will also be brought into the inside of transformer substation along with the wind in rainy day.
Accordingly, it is necessary to provide a ventilation structure for a box-type substation and a box-type substation to solve the above-mentioned problems.
Disclosure of Invention
The invention provides a ventilation structure for a box-type substation and the box-type substation, and aims to solve the problem that dust or rainwater can enter the substation by adopting a fan to affect normal operation of the substation.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a ventilation structure for box-type substation, includes the transformer substation body, the mounting hole has been seted up to the both ends symmetry of transformer substation body, fixed mounting has a fixed section of thick bamboo in the mounting hole, the inside fixed mounting of one end of fixed section of thick bamboo has the mounting panel, the last fixed surface of mounting panel installs the motor, the output fixed mounting of motor has the output shaft, fixed mounting has the flabellum on the output shaft, the fixed section of thick bamboo is kept away from the fixed frame of one end fixed mounting of motor, one side of concave frame is located the annular array of axis department of fixed section of thick bamboo and installs the sector plate that is used for shutoff fixed section of thick bamboo, a plurality of be circular setting between sector plate, install the opening mechanism that is used for canceling the sector plate to fixed section of thick bamboo shutoff between output shaft and the sector plate, the positioning mechanism that is used for carrying out manual position fixing to the sector plate is installed in the outside of concave frame.
The opening mechanism comprises an extrusion circular plate, an extrusion cambered surface, a sliding hole, a U-shaped rod, a positioning groove and a reset spring, wherein the extrusion circular plate is fixedly installed at one end of the output shaft, far away from the motor, the extrusion cambered surface is formed in an annular array mode at the central axis of the extrusion circular plate, the sliding hole is formed in the outer side of the fixed cylinder, corresponding to the position of the extrusion cambered surface, in the annular array mode at the central axis of the fixed cylinder, the U-shaped rod is installed in the sliding hole in a sliding mode, one end of the U-shaped rod is attached to the extrusion cambered surface, the other end of the U-shaped rod is fixedly connected with the outer side of the fan-shaped plate, the positioning groove is formed in the middle of the concave frame, the U-shaped rod penetrates through the positioning groove, the reset spring is fixedly installed at the turning position of the U-shaped rod, and one end of the reset spring, far away from the U-shaped rod, is fixedly connected with the end of the concave frame, corresponding to the positioning groove.
The sliding hole is tightly attached to the U-shaped rod for sliding.
Rounded corners are formed at one end, away from the sector plates, of the U-shaped rod.
The positioning mechanism comprises a positioning ring, a positioning circular groove and an L-shaped rod, wherein the positioning ring is rotatably arranged on the outer side of the concave frame, the positioning circular ring is fixedly arranged on the inner wall of the positioning ring, the positioning circular groove is formed in the position of the concave frame corresponding to the positioning circular ring, the positioning circular groove is rotatably connected with the positioning circular ring, and the L-shaped rod which is used for being inserted into the U-shaped rod and controlling the position of the U-shaped rod is fixedly arranged on the inner wall of one end of the positioning ring.
And a sealing rubber pad is arranged at one side of the concave frame, which is attached to the transformer substation body.
A box-type substation comprises a ventilation structure for the box-type substation.
Compared with the prior art, the invention has the following beneficial effects:
when the invention is used, the circular shape formed by the fan-shaped plates can seal the fixed cylinder when ventilation is not needed, the outside and the transformer substation body are isolated, dust or rainwater can not enter the transformer substation body, when the transformer substation body needs ventilation, the motor operates to drive the output shaft to rotate, and then the fan blades are driven to rotate to ventilate the transformer substation body, meanwhile, the operation through opening the mechanism will drive a plurality of sector plates and remove, open fixed section of thick bamboo, realize that external and the communication of transformer substation body realize the ventilation to the transformer substation body, compare with prior art, can keep apart external and transformer substation body when not needing the transformer substation body ventilation, reduce the transformer substation body and receive the degree of rainwater or dust pollution.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the invention without the fixed cylinder;
FIG. 3 is a schematic view of a partial explosion structure according to the present invention;
FIG. 4 is a schematic diagram of a partial explosion structure of the present invention;
FIG. 5 is a schematic view of a partial cross-sectional structure of the present invention;
FIG. 6 is an enlarged schematic view of the structure shown at A in FIG. 5;
reference numerals in the drawings: 1. a substation body; 2. a mounting hole; 3. a fixed cylinder; 4. a mounting plate; 5. a motor; 6. an output shaft; 7. a fan blade; 8. a concave frame; 9. a sector plate; 10. an opening mechanism; 11. a positioning mechanism; 12. round corners; 13. sealing a rubber pad; 101. extruding a circular plate; 102. extruding the cambered surface; 103. a slide hole; 104. a U-shaped rod; 105. a positioning groove; 106. a return spring; 111. a positioning ring; 112. positioning a circular ring; 113. positioning the round groove; 114. an L-shaped rod.
Detailed Description
As shown in fig. 1 to 6, the ventilation structure for a box-type transformer substation provided by the invention comprises a transformer substation body 1, mounting holes 2, a fixed cylinder 3, a mounting plate 4, a motor 5, an output shaft 6, fan blades 7, a concave frame 8, sector plates 9, an opening mechanism 10 and a positioning mechanism 11, wherein the mounting holes 2 are symmetrically formed at two ends of the transformer substation body 1, the fixed cylinder 3 is fixedly arranged in the transformer substation body corresponding to the mounting holes 2, the mounting plate 4 is fixedly arranged at one end of the fixed cylinder 3, the motor 5 of the fan is fixedly arranged on the upper surface of the mounting plate 4, the output shaft 6 is fixedly arranged at the output end of the motor 5, the fan blades 7 are fixedly arranged at the middle part of the output shaft 6, the concave frame 8 is fixedly arranged at one end of the fixed cylinder 3 far from the motor 5, the sector plates 9 for blocking the fixed cylinder 3 are annularly arranged at the central axis of the concave frame 8, the opening mechanism 10 for cancelling the blocking of the fixed cylinder 3 is arranged between the output shaft 6 and the sector plates 9 in a circular shape, and the manual positioning mechanism 11 for fixing the position of the sector plates 9 is arranged at the outer side of the concave frame 8. When the fan-shaped plate fixing device is used, when ventilation is not needed normally, the fixing cylinder 3 is blocked by the circle formed by the fan-shaped plates 9, the outside and the transformer substation body 1 are isolated, dust or rainwater can not enter the transformer substation body 1, when ventilation is needed by the transformer substation body 1, the motor 5 is operated to drive the output shaft 6 to rotate, the fan blades 7 are driven to rotate to ventilate the inside of the transformer substation body 1, meanwhile, the fan-shaped plates 9 are driven to move through the operation of the opening mechanism 10, the fixing cylinder 3 is opened, the outside and the transformer substation body 1 are communicated, the ventilation to the transformer substation body 1 is realized, and the outside and the transformer substation body 1 are always communicated through the operation of the positioning mechanism 11, so that the transformer substation body 1 is always ventilated.
The opening mechanism 10 comprises an extrusion circular plate 101, an extrusion cambered surface 102, a sliding hole 103, a U-shaped rod 104, a positioning groove 105 and a return spring 106, wherein the extrusion circular plate 101 is fixedly arranged at one end of an output shaft 6 far away from a motor 5, the extrusion cambered surface 102 is annularly arranged at the central axis of the extrusion circular plate 101 on the outer side of the extrusion circular plate 101 in an array manner, the sliding hole 103 is annularly arranged at the position of the outer side of a fixed cylinder 3 corresponding to the extrusion cambered surface 102 and the central axis of the fixed cylinder 3 in an array manner, the U-shaped rod 104 is slidably arranged at the middle part of the sliding hole 103, one end of the U-shaped rod 104 is attached to the extrusion cambered surface 102, the other end of the U-shaped rod 104 is fixedly connected with the outer side of a sector plate 9, the positioning groove 105 is annularly arranged at the middle part of a concave frame 8 in an array manner, the U-shaped rod 104 passes through the positioning groove 105, the return spring 106 is fixedly arranged at the turning position of the U-shaped rod 104, and one end of the return spring 106 far away from the U-shaped rod 104 is fixedly connected with the end of the concave frame 8 corresponding to the positioning groove 105. When ventilation is carried out inside the transformer substation body 1, the extrusion circular plate 101 rotates along with the rotation of the output shaft 6, at this time, the extrusion cambered surface 102 on the extrusion circular plate 101 continuously extrudes one end of the U-shaped rod 104, and then drives the U-shaped rod 104 to slide along the sliding hole 103, at this time, the reset spring 106 is in an elongated state, the movement of the sector plate 9 is realized through the connection of the U-shaped rod 104, the blocking of the sector plate 9 on the fixed cylinder 3 is canceled, the communication between the outside and the transformer substation body 1 and the ventilation inside the transformer substation body 1 are realized, in the rotation process of the extrusion circular plate 101, because the rotation speed of the motor 5 is very fast, the extrusion cambered surface 102 always extrudes one end of the U-shaped rod 104 to enable the position of the U-shaped rod 104 to be unchanged, the constant opening of the fixed cylinder 3 is realized, and when ventilation is not needed, the motor 5 stops rotating, the extrusion cambered surface 102 does not extrude one end of the U-shaped rod 104, and drives the U-shaped rod 104 to slide along the sliding hole 103 through the pulling of the reset spring 106, and a plurality of sector plates 9 are spliced into a circle shape to block the fixed cylinder 3.
The return spring 106 of the present invention is a spring having a relatively small stiffness coefficient. When the extrusion cambered surface 102 always extrudes one end of the U-shaped rod 104, the stiffness coefficient of the return spring 106 is smaller, so that the pulling force of the return spring 106 on the U-shaped rod 104 is smaller, the extrusion cambered surface 102 is not easy to cause that the extrusion cambered surface 102 always extrudes one end of the U-shaped rod 104 with a great force, and the abrasion speed between the U-shaped rod 104 and the extrusion cambered surface 102 is further reduced.
The sliding hole 103 and the U-shaped rod 104 are tightly attached to slide, so that the U-shaped rod 104 slides along the sliding hole 103 and the stability of the movement of the sector plate 9 is realized.
The end of the U-shaped rod 104 far away from the sector plate 9 is provided with the round angle 12, so that the contact smoothness between the U-shaped rod 104 and the extrusion cambered surface 102 is realized.
The positioning mechanism 11 comprises a positioning ring 111, a positioning circular ring 112, a positioning circular groove 113 and an L-shaped rod 114, wherein the positioning ring 111 is rotatably arranged on the outer side of the concave frame 8, the positioning circular ring 112 is fixedly arranged on the inner wall of the positioning ring 111, the positioning circular groove 113 is formed in the position, corresponding to the positioning circular ring 112, of the concave frame 8, the positioning circular groove 113 is rotatably connected with the positioning circular ring 112, and the L-shaped rod 114 which is used for being inserted into the U-shaped rod 104 and controlling the position of the U-shaped rod 104 is fixedly arranged on the inner wall of one end of the positioning ring 111. When the outside is required to be communicated with the transformer substation body 1 all the time and ventilation is carried out, the positioning ring 111 is rotated for a certain angle along the outer side of the concave frame 8, the positioning ring 112 is driven to rotate in the positioning circular groove 113, and then the L-shaped rod 114 is driven to be inserted into the turning part of the U-shaped rod 104, so that the position of the sector plate 9 is fixed, and the constant ventilation of the transformer substation body 1 can be realized.
A sealing rubber pad 13 is arranged at the position of one side, where the concave frame 8 is attached to the transformer substation body 1, of the transformer substation, so that the waterproof effect on the attachment and the position of the concave frame 8 to the transformer substation body 1 is realized.
The invention also provides a box-type substation, which comprises the ventilation structure for the box-type substation.
The specific structure of the invention needs to be described that the connection relation between the component modules adopted by the invention is definite and realizable, and besides the specific description in the embodiment, the specific connection relation can bring about corresponding technical effects, and on the premise of not depending on execution of corresponding software programs, the technical problems of the invention are solved, the types of the components, the modules and the specific components, the connection modes of the components and the expected technical effects brought by the technical characteristics are clear, complete and realizable, and the conventional use method and the expected technical effects brought by the technical characteristics are all disclosed in patents, journal papers, technical manuals, technical dictionaries and textbooks which can be acquired by a person in the field before the application date, or the prior art such as conventional technology, common knowledge in the field, and the like, so that the provided technical scheme is clear, complete and the corresponding entity products can be reproduced or obtained according to the technical means.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (7)
1. A ventilation structure for box-type substation, its characterized in that: including transformer substation body (1), mounting hole (2) have been seted up to the both ends symmetry of transformer substation body (1), fixed mounting has fixed section of thick bamboo (3) in mounting hole (2), the inside fixed mounting of one end of fixed section of thick bamboo (3) has mounting panel (4), the last fixed surface of mounting panel (4) installs motor (5), the output fixed mounting of motor (5) has output shaft (6), fixed mounting has flabellum (7) on output shaft (6), the one end fixed mounting that motor (5) were kept away from to fixed section of thick bamboo (3) has concave frame (8), one side of concave frame (8) is located the annular array of axis department of fixed section of thick bamboo (3) and installs sector plate (9) that are used for shutoff fixed section of thick bamboo (3), a plurality of be circular setting between sector plate (9), install between output shaft (6) and sector plate (9) and be used for canceling the opening mechanism (10) of sector plate (9) to fixed section of thick bamboo (3) shutoff, the outside of concave frame (8) is installed and is used for carrying out manual location mechanism (11) to sector plate (9).
2. A ventilation structure for a box-type substation according to claim 1, characterized in that: the opening mechanism (10) comprises an extrusion circular plate (101), an extrusion cambered surface (102), a sliding hole (103), a U-shaped rod (104), a positioning groove (105) and a return spring (106), one end of the output shaft (6) far away from the motor (5) is fixedly provided with an extrusion circular plate (101), the outer side of the extrusion circular plate (101) is provided with an extrusion cambered surface (102) in an annular array at the central axis of the extrusion circular plate (101), the outer side of the fixed cylinder (3) is provided with slide holes (103) corresponding to the position of the extrusion cambered surface (102) and positioned at the central axis of the fixed cylinder (3) in an annular array manner, a U-shaped rod (104) is arranged in the sliding hole (103) in a sliding way, one end of the U-shaped rod (104) is attached to the extrusion cambered surface (102), the other end of the U-shaped rod (104) is fixedly connected with the outer side of the sector plate (9), the middle part of the concave frame (8) is provided with positioning grooves (105) in an annular array at the central axis of the concave frame (8), the U-shaped rod (104) passes through the positioning groove (105), a return spring (106) is fixedly arranged at the turning part of the U-shaped rod (104), one end of the return spring (106) far away from the U-shaped rod (104) is fixedly connected with the end part of the concave frame (8) corresponding to the positioning groove (105).
3. A ventilation structure for a box-type substation according to claim 2, characterized in that: the sliding hole (103) is tightly attached to the U-shaped rod (104) for sliding.
4. A ventilation structure for a box-type substation according to claim 2, characterized in that: one end of the U-shaped rod (104) far away from the sector plate (9) is provided with a round angle (12).
5. A ventilation structure for a box-type substation according to claim 2, characterized in that: positioning mechanism (11) are including holding ring (111), location ring (112), location circular slot (113) and L type pole (114), holding ring (111) are installed in the outside rotation of concave frame (8), the inner wall fixed mounting of holding ring (111) has holding ring (112), holding circular slot (113) have been seted up to the position that concave frame (8) corresponds location circular slot (112), holding circular slot (113) are connected with holding ring (112) rotation, the one end inner wall fixed mounting of holding ring (111) has L type pole (114) that are used for inserting inside and control U type pole (104) position of U type pole (104).
6. The ventilation structure for a box-type substation according to claim 5, wherein: a sealing rubber pad (13) is arranged at one side of the concave frame (8) attached to the transformer substation body (1).
7. A box-type substation, characterized in that: a ventilation structure for a box-type substation comprising any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310981948.9A CN116706744B (en) | 2023-08-07 | 2023-08-07 | Ventilation structure for box-type substation and box-type substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310981948.9A CN116706744B (en) | 2023-08-07 | 2023-08-07 | Ventilation structure for box-type substation and box-type substation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116706744A true CN116706744A (en) | 2023-09-05 |
| CN116706744B CN116706744B (en) | 2023-12-08 |
Family
ID=87839697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310981948.9A Active CN116706744B (en) | 2023-08-07 | 2023-08-07 | Ventilation structure for box-type substation and box-type substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116706744B (en) |
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| KR20110084608A (en) * | 2010-01-18 | 2011-07-26 | 주식회사 아이펙 | Leak control system for rotary regenerating type air pre-heater |
| CN209197386U (en) * | 2019-06-25 | 2019-08-02 | 广州优越检测技术服务有限公司 | A kind of air dry oven |
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| CN113013761A (en) * | 2021-03-23 | 2021-06-22 | 方瑶 | Intelligent power distribution cabinet based on Internet of things power |
| CN113572064A (en) * | 2021-07-05 | 2021-10-29 | 亚洲电力设备(深圳)有限公司 | Heat radiation structure and box-type substation of box-type substation |
| CN214755116U (en) * | 2021-05-24 | 2021-11-16 | 青岛明德信电气有限公司 | Box-type substation convenient to overhaul |
| CN215412332U (en) * | 2021-07-15 | 2022-01-04 | 上海吉昱通风管道有限公司 | Building is warm to lead to and is used high-efficient ventilation unit |
| CN114447773A (en) * | 2021-12-30 | 2022-05-06 | 上海西屋成套设备有限公司 | Rainproof outdoor electrical switch cabinet |
| CN114857090A (en) * | 2022-04-29 | 2022-08-05 | 满洲里达赉湖热电有限公司 | Air supply blower air volume adjusting and guiding device |
| CN217281831U (en) * | 2022-02-14 | 2022-08-23 | 湖南沄辉科技股份有限公司 | Dustproof and waterproof power station ventilation control system convenient to maintain |
| CN115021104A (en) * | 2022-08-08 | 2022-09-06 | 人民电器集团(山东)枣矿智能制造有限公司 | Axial-flow type cleaning device of high-low voltage switch cabinet |
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2023
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| JP2000166030A (en) * | 1998-11-20 | 2000-06-16 | Mitsubishi Electric Corp | Enclosed switchboard |
| KR20110084608A (en) * | 2010-01-18 | 2011-07-26 | 주식회사 아이펙 | Leak control system for rotary regenerating type air pre-heater |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN116706744B (en) | 2023-12-08 |
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