CN113436835B - Power transformer and explosion-proof method thereof - Google Patents
Power transformer and explosion-proof method thereof Download PDFInfo
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- CN113436835B CN113436835B CN202110709666.4A CN202110709666A CN113436835B CN 113436835 B CN113436835 B CN 113436835B CN 202110709666 A CN202110709666 A CN 202110709666A CN 113436835 B CN113436835 B CN 113436835B
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- box body
- air inlet
- telescopic rod
- assembly
- power transformer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/085—Cooling by ambient air
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/406—Temperature sensor or protection
Abstract
The invention relates to the technical field of transformers, in particular to a power transformer and an explosion-proof method thereof, wherein the power transformer comprises a box body, a transformer main body, an air inlet assembly, a telescopic rod, a pressure sensor and a controller, wherein the transformer main body is arranged in the box body, the box body is provided with an air inlet, and the air inlet assembly can selectively block or open the air inlet so as to seal the box body or be communicated with the outside; the fixed end of the telescopic rod is fixed on the inner wall of the box body, and the movable end drives the air inlet assembly to move through the driving transmission assembly; the pressure sensor is fixed on the inner wall of the box body, and the transmission assembly can be selectively contacted with or separated from the pressure sensor; the controller is electrically connected with the pressure sensor and the telescopic rod and can drive the telescopic rod to extend or contract. The invention can automatically adjust the internal environment of the power transformer, prevent the occurrence of negative pressure in the box body of the power transformer, improve the safety and avoid potential safety hazards.
Description
Technical Field
The invention relates to the technical field of transformers, in particular to a power transformer and an explosion-proof method of the power transformer.
Background
The power transformer is equipment for converting alternating current energy with certain voltage into alternating current energy with different voltage based on a mutual inductance phenomenon according to an electromagnetic induction principle, the working condition of the power transformer in outdoor environment is often severe, if the internal environment of the power transformer is changed into negative pressure, the sealing performance of the power transformer is deteriorated, dust enters the inside of the power transformer, and the power transformer is easy to cause short circuit and even explode.
Disclosure of Invention
The invention aims to provide a power transformer and an explosion-proof method of the power transformer, which can automatically adjust the internal environment of the power transformer and prevent dust from entering the power transformer to cause potential safety hazards.
In order to achieve the purpose, the invention adopts the following technical scheme:
an electrical transformer, comprising:
the transformer comprises a box body, a transformer main body and a transformer, wherein the box body is provided with an air inlet;
the air inlet assembly can selectively block or open the air inlet so as to seal the box body or communicate with the outside;
the fixed end of the telescopic rod is fixed on the inner wall of the box body, and the movable end of the telescopic rod drives the air inlet assembly to move through the driving transmission assembly;
the pressure sensor is fixed on the inner wall of the box body, and the transmission assembly can be selectively contacted with or separated from the pressure sensor;
the controller is electrically connected with the pressure sensor and the telescopic rod and can drive the telescopic rod to extend or contract.
Preferably, the box body comprises a main box body, and a transverse pipe and a vertical pipe which are communicated with each other, the vertical pipe is fixed in the main box body, at least part of the transverse pipe extends out of the main box body, the part of the transverse pipe extending out of the main box body is provided with an air inlet, and the bottom wall of the vertical pipe is provided with an air outlet;
the air inlet assembly is connected to the transverse pipe in a sliding mode, the fixed end of the telescopic rod is fixed to the top wall of the vertical pipe, and the pressure sensor is fixed to the side wall of the vertical pipe.
Preferably, the air inlet and the air outlet are both provided with dust screens.
Preferably, the transmission assembly comprises a first transmission unit and a second transmission unit, the first transmission unit is connected to the movable end of the telescopic rod, the second transmission unit is connected to the air inlet assembly, and the first transmission unit can drive the second transmission unit.
Preferably, the first transmission unit comprises a first sliding plate and a first piston, one end of the first sliding plate is fixedly connected to the movable end of the telescopic rod, the other end of the first sliding plate is connected to the first piston, and the first piston drives the second transmission unit to move.
Preferably, the first slide plate and the first piston are elastically connected by an elastic member.
Preferably, the second transmission unit comprises a rack and a gear engaged with the rack, the rack is fixedly connected with the first piston, and the gear is connected with the air inlet assembly.
Preferably, the air inlet assembly comprises a second piston and a second sliding plate, the second piston is connected with the second sliding plate through a supporting rod, a screw is arranged on one side, away from the second piston, of the second sliding plate, and the screw is fixedly connected with the gear.
Preferably, the second sliding plate is provided with a threaded hole, and the threaded hole is in threaded fit with the screw rod.
An explosion-proof method of a power transformer, which uses the power transformer, comprises the following steps:
s10, the telescopic rod extends, and the air inlet assembly is driven by the transmission assembly to plug the air inlet;
s20, when the telescopic rod extends to the maximum length, the box body is in a positive pressure state, and the transmission assembly is relatively static relative to the box body;
s30, when the pressure in the box body is reduced, the transmission assembly moves further to contact the pressure sensor, the pressure sensor transmits signals to the controller, the controller controls the telescopic rod to contract, the telescopic rod drives the air inlet assembly to open the air inlet through the transmission assembly, and the air pressure in the box body is balanced with the external air pressure.
The invention has the beneficial effects that: according to the invention, the telescopic rod controlled by the controller is arranged to drive the transmission assembly, so that the air inlet assembly is driven to selectively communicate the inside of the box body with the external connection or seal the box body, the internal environment of the power transformer is automatically adjusted, the situation of negative pressure in the box body of the power transformer is prevented, the safety is improved, and potential safety hazards are avoided.
Drawings
Fig. 1 is a schematic structural diagram of a power transformer according to a first embodiment of the present invention;
FIG. 2 isbase:Sub>A cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 1;
fig. 4 is a sectional view of a front view of a power transformer according to a second embodiment of the present invention.
In the figure:
1. a box body; 11. a main box body; 111. a pressure relief valve; 12. a transverse tube; 121. an air inlet; 13. a vertical tube; 131. an air outlet; 14. an access door; 15. a transformer main body;
2. a telescopic rod;
3. a transmission assembly; 31. a first slide plate; 32. an elastic member; 33. a first piston; 34. a rack; 35. a gear;
4. an air intake assembly; 41. a second slide plate; 42. a second piston; 43. a screw;
5. a pressure sensor; 6. a controller;
7. a cooling tank; 8. an air extraction assembly; 9. an air tube; 10. a temperature sensor.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings and the embodiment. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the features relevant to the present invention are shown in the drawings.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation that the first and second features are not in direct contact, but are in contact via another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.
The first embodiment is as follows:
as shown in fig. 1-3, the present embodiment provides a power transformer, which includes a box body 1, a transformer main body 15, an air inlet assembly 4, an expansion link 2, a pressure sensor 5 and a controller 6, wherein the transformer main body 15 is disposed inside the box body 1, an air inlet 121 is disposed on the box body 1, and the air inlet assembly 4 can selectively block or open the air inlet 121, so as to seal or communicate the box body 1 with the outside; the fixed end of the telescopic rod 2 is fixed on the inner wall of the box body 1, and the movable end drives the air inlet component 4 to move through the driving transmission component 3; the pressure sensor 5 is fixed on the inner wall of the box body 1, and the transmission assembly 3 can be selectively contacted with or separated from the pressure sensor 5; the controller 6 is electrically connected with the pressure sensor 5 and the telescopic rod 2 and can drive the telescopic rod 2 to extend or contract.
This embodiment is through setting up the telescopic link 2 by controller 6 control, drive transmission assembly 3 to the drive subassembly 4 that admits air makes the inside of box 1 with the selectivity and external intercommunication or make box 1 sealed, and automatically regulated power transformer internal environment prevents that the condition of negative pressure from appearing in power transformer's box 1, has improved the security, avoids the potential safety hazard.
Specifically, the box 1 provided by this embodiment includes a main box 11, and a horizontal pipe 12 and a vertical pipe 13 that are communicated with each other, where the vertical pipe 13 is fixed in the main box 11, the horizontal pipe 12 at least partially extends out of the main box 11, an air inlet 121 is provided on a portion of the horizontal pipe 12 that extends out of the main box 11, an air outlet 131 is provided on a bottom wall of the vertical pipe 13, external air can enter the horizontal pipe 12 and the vertical pipe 13 that is communicated with the horizontal pipe 12 from the air inlet 121 on the horizontal pipe 12, and then enter the main box 11 from the air outlet 131 provided on the bottom wall of the vertical pipe 13. Further, air inlet 121 department all is equipped with the dust screen, can the dust in the filtered air, prevents that the dust from getting into violently pipe 12 and standpipe 13, and further, the exit also is equipped with the dust screen, further filters the dust that gets into violently pipe 12 and standpipe 13 in the air, prevents that the dust from getting into main box 11 in, filters twice in order to guarantee that main box 11 is interior air and not adulterated dust or other impurity.
Wherein the air intake component 4, the telescopic rod 2, the transmission component 3 and the pressure sensor 5 are all arranged in the transverse pipe 12 or the vertical pipe 13, more specifically, the air intake component 4 is connected to the transverse pipe 12 in a sliding manner along the extending direction of the transverse pipe 12, the fixed end of the telescopic rod 2 is fixed on the top wall of the vertical pipe 13, and the pressure sensor 5 is fixed on the side wall of the vertical pipe 13.
Further, the transmission assembly 3 comprises a first transmission unit and a second transmission unit, the first transmission unit is connected to the movable end of the telescopic rod 2, the second transmission unit is connected to the air inlet assembly 4, and the first transmission unit can drive the second transmission unit to move.
The first transmission unit provided by this embodiment includes a first sliding plate 31 and a first piston 33, one end of the first sliding plate 31 is fixedly connected to the movable end of the telescopic rod 2, and the other end is connected to the first piston 33, the piston drives the second transmission unit to move, when the telescopic rod 2 is extended and retracted, the first sliding plate 31 is driven to move along the extending direction of the vertical tube 13, and the first piston 33 is driven to move along the extending direction of the vertical tube 13.
Further, the first sliding plate 31 is connected to the first piston 33 through an elastic member 32. During the extension of the telescopic rod 2 and the downward movement of the first sliding plate 31, the elastic member 32 is compressed, when the telescopic rod 2 is extended to the maximum length, the first sliding plate 31 is stationary relative to the box 1, and the first piston 33 can continue to move under the restoring force of the elastic member 32, thereby contacting the pressure sensor 5.
The second transmission unit provided by the present embodiment includes a rack 34 and a gear 35 engaged with the rack 34, the rack 34 is fixedly connected with the first piston 33, and the gear 35 is connected to the air intake assembly 4. During the movement of the first piston 33, the rack 34 can be driven to move along the extending direction of the vertical pipe 13, so as to drive the gear 35 to rotate.
The air intake assembly 4 provided by the present embodiment includes a second piston 42 and a second sliding plate 41, the second piston 42 is connected to the second sliding plate 41 through a support rod, a screw 43 is disposed on a side of the second sliding plate 41 away from the second piston 42, and the screw 43 is fixedly connected to the gear 35. The gear 35 rotates, drive the screw rod 43 to rotate, specifically, threaded holes are formed in the second sliding plate 41, the threaded holes are in threaded connection with the screw rod 43, wherein one end of the screw rod 43 extends into the transverse pipe 12, in the process of rotating the screw rod 43, the second sliding plate 41 is driven to slide along the extending direction of the transverse pipe 12, the second sliding plate 41 drives the second piston 42 to slide along the extending direction of the transverse pipe 12 through the supporting rod, when the distance between the second piston 42 and the vertical pipe 13 is greater than the distance between the air inlet 121 and the vertical pipe 13, the box body 1 is communicated with the external atmosphere, when the distance between the second piston 42 and the vertical pipe 13 is less than the distance between the air inlet 121 and the vertical pipe 13, the box body 1 is in a closed state.
The power transformer that this embodiment provided still includes relief valve 111, and relief valve 111 sets up in main tank 11 upper wall, and when the box internal pressure was too high, relief valve 111 started to carry out the pressure release, guarantees transformer main body 15's normal operating environment.
Furthermore, still be equipped with access door 14 on the main tank 11, be equipped with the handle on the access door 14, conveniently open box 1 and overhaul its inner structure.
The embodiment also provides an explosion-proof method of a power transformer, which uses the power transformer, and comprises the following steps:
s10, the telescopic rod 2 extends, and the air inlet component 4 is driven by the transmission component 3 to block the air inlet 121;
s20, when the telescopic rod 2 extends to the maximum length, the interior of the box body 1 is in a positive pressure state, and the transmission component 3 is relatively static relative to the box body 1;
s30, when the pressure in the box body 1 is reduced, the transmission assembly 3 moves further, the pressure sensor 5 is contacted, the pressure sensor 5 transmits signals to the controller 6, the controller 6 controls the telescopic rod 2 to contract, the telescopic rod 2 drives the air inlet assembly 4 through the transmission assembly 3 to open the air inlet 121, and the air pressure in the box body 1 is balanced with the external air pressure.
Specifically, S10 includes: the telescopic rod 2 is extended, drive the first slide plate 31 to move downwards along the vertical pipe 13, compress the elastic part 32 and drive the first piston 33 to move downwards along the vertical pipe 13, the first piston 33 drives the rack 34 to move downwards, the gear 35 engaged with the rack 34 rotates, and drive the screw 43 to rotate together, the second slide plate 41 connected with the screw 43 by screw thread slides towards one side close to the vertical pipe 13 along the transverse pipe 12, the second slide plate 41 drives the second piston 42 to slide towards one side close to the vertical pipe 13 along the transverse pipe 12 through the support rod, the distance between the second piston 42 and the vertical pipe 13 is less than the distance between the air inlet 121 and the vertical pipe 13, and the box 1 is in a closed state.
S20 comprises the following steps: when the telescopic rod 2 extends to the maximum length, the interior of the box body 1 is in a positive pressure state, the acting force applied to the elastic piece 32 is balanced with the restoring force of the elastic piece 32, and the whole transmission assembly 3 is in a static state relative to the box body 1.
S30 includes: the pressure in the box body 1 decreases, the air pressure below the elastic element 32 decreases, the elastic element 32 pushes the first piston 33 under the action of the restoring force, the first piston 33 continues to move downwards along the vertical pipe 13 and contacts the pressure sensor 5, the pressure sensor 5 transmits a signal to the controller 6, the controller 6 controls the telescopic rod 2 to contract and drives the first sliding plate 31 to move upwards along the vertical pipe 13, the first sliding plate 31 drives the first piston 33 to move upwards along the vertical pipe 13 through the elastic element 32, the first piston 33 drives the rack 34 to move upwards, the gear 35 meshed with the rack 34 rotates and drives the screw 43 to rotate together, the second sliding plate 41 in threaded connection with the screw 43 slides along the transverse pipe 12 towards the side far away from the vertical pipe 13, the second sliding plate 41 drives the second piston 42 to slide along the side far away from the vertical pipe 13 through the support rod, the distance between the second piston 42 and the vertical pipe 13 is greater than the distance between the air inlet 121 and the vertical pipe 13, the box body 1 is communicated with the outside atmosphere, the air enters the box body 1 through the air inlet 121, the air pressure is balanced with the outside, and the step S10 is repeated.
The second embodiment:
as shown in fig. 4, in addition to the power transformer structure provided in the first embodiment, the power transformer provided in this embodiment further includes a cooling box 7, an air extracting assembly 8 and a temperature sensor 10, wherein the cooling box 7 is fixed at the bottom of the main box 11, and the cooling box 7 contains a cooling liquid; the air extraction component 8 is arranged on the bottom wall in the main box body 11, the outlet end of the air extraction component 8 is communicated with the interior of the main box body 11 through an air pipe 9, and specifically, at least part of the air pipe 9 is arranged in the cooling box 7; the temperature sensor 10 is arranged on the inner wall of the main box body 11, and the air exhaust assembly 8 and the temperature sensor 10 are electrically connected with the controller 6.
After temperature sensor 10 detected the high temperature in the box 1, 8 work of subassembly are bled in the control of controller 6, with in the box 1 heat conduction air suction trachea 9, behind the coolant liquid absorption heat in the cooler bin 7, microthermal gas gets into in the main tank 11 once more, cool down, detect the temperature and descend to suitable within range back up to temperature sensor 10, bleed subassembly 8 stop work, cool down in the box 1, for transformer main part 15 provides suitable temperature space, prevent 15 high temperatures of transformer main part, lead to the explosion.
Preferably, the air pipe 9 is spirally bent in the cooling box 7, so that the air flow path is increased, and the cooling effect is improved.
Furthermore, a transparent observation window is arranged on the wall of the cooling box 7; facilitating observation of the coolant level in the cooling tank 7. Furthermore, a liquid inlet pipe is arranged at the top of the cooling box 7 and inserted into the cooling box 7, and a liquid inlet valve is arranged on the liquid inlet pipe; it is convenient to add cooling liquid to the cooling tank 7.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (9)
1. An electrical transformer, comprising:
the transformer comprises a box body (1), wherein an air inlet (121) is formed in the box body (1), and a transformer main body (15) is arranged in the box body (1);
the air inlet assembly (4), the air inlet assembly (4) can selectively block or open the air inlet (121) so as to seal or communicate the box body (1) with the outside;
the fixed end of the telescopic rod (2) is fixed on the inner wall of the box body (1), and the movable end of the telescopic rod drives the air inlet assembly (4) to move through the driving transmission assembly (3);
the pressure sensor (5) is fixed on the inner wall of the box body (1), and the transmission assembly (3) can be selectively contacted with or separated from the pressure sensor (5);
the controller (6) is electrically connected with the pressure sensor (5) and the telescopic rod (2) and can drive the telescopic rod (2) to extend or retract;
the box body (1) comprises a main box body (11), and a transverse pipe (12) and a vertical pipe (13) which are communicated with each other, wherein the vertical pipe (13) is fixed in the main box body (11), at least part of the transverse pipe (12) extends out of the main box body (11), the part of the transverse pipe (12) extending out of the main box body (11) is provided with an air inlet (121), and the bottom wall of the vertical pipe (13) is provided with an air outlet (131);
air intake assembly (4) sliding connection in violently manage (12), the stiff end of telescopic link (2) is fixed in standpipe (13) roof, pressure sensor (5) are fixed in the lateral wall of standpipe (13).
2. An electric transformer according to claim 1, characterized in that dust screens are provided at both the air inlet (121) and the air outlet (131).
3. The power transformer according to claim 1, characterized in that said transmission assembly (3) comprises a first transmission unit connected to the movable end of said telescopic rod (2) and a second transmission unit connected to said air intake assembly (4), said first transmission unit being able to drive said second transmission unit.
4. A power transformer according to claim 3, characterized in that the first transmission unit comprises a first sliding plate (31) and a first piston (33), one end of the first sliding plate (31) is fixedly connected to the movable end of the telescopic rod (2) and the other end is connected to the first piston (33), and the first piston (33) can drive the second transmission unit to move.
5. A power transformer according to claim 4, characterized in that the first sliding plate (31) is elastically connected to the first piston (33) by means of an elastic member (32).
6. Power transformer according to claim 4, characterized in that the second transmission unit comprises a rack (34) and a gear wheel (35) meshing with the rack (34), the rack (34) being fixedly connected with the first piston (33), the gear wheel (35) being connected to the air intake assembly (4).
7. The power transformer according to claim 6, characterized in that the air inlet assembly (4) comprises a second piston (42) and a second sliding plate (41), the second piston (42) is connected with the second sliding plate (41) through a support rod, a screw (43) is arranged on one side of the second sliding plate (41) facing away from the second piston (42), and the screw (43) is fixedly connected with the gear (35).
8. A power transformer according to claim 7, characterized in that said second sliding plate (41) is provided with a threaded hole, said threaded hole being in threaded engagement with said threaded rod (43).
9. A method for explosion protection of a power transformer, characterized in that a power transformer according to any one of claims 1-8 is used, comprising the steps of:
s10, the telescopic rod (2) extends, and the air inlet (121) is plugged by driving the air inlet component (4) through the transmission component (3);
s20, when the telescopic rod (2) is extended to the maximum length, the interior of the box body (1) is in a positive pressure state, and the transmission assembly (3) is relatively static relative to the box body (1);
s30, when the pressure in the box body (1) is reduced, the transmission assembly (3) further moves to contact the pressure sensor (5), the pressure sensor (5) transmits signals to the controller (6), the controller (6) controls the telescopic rod (2) to contract, and the telescopic rod (2) drives the air inlet assembly (4) to open the air inlet (121) through the transmission assembly (3) until the air pressure in the box body (1) is balanced with the external air pressure.
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| CN202110709666.4A CN113436835B (en) | 2021-06-25 | 2021-06-25 | Power transformer and explosion-proof method thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009500818A (en) * | 2005-06-29 | 2009-01-08 | フィリップ マニエ | Transformer explosion prevention device |
| CN108321704A (en) * | 2018-02-27 | 2018-07-24 | 张乃月 | Explosion-proof positive pressure power distribution cabinet |
| CN109027659A (en) * | 2018-09-17 | 2018-12-18 | 江西省烈岩机械有限公司 | With the gas container from voltage stabilizing function |
| CN109342124A (en) * | 2018-12-08 | 2019-02-15 | 大连函量科技发展有限公司 | A kind of gas sampling detection device for laboratory |
| CN111082342A (en) * | 2019-12-28 | 2020-04-28 | 河南省森电智能装备有限公司 | Underground intelligent box-type transformer |
| CN211980374U (en) * | 2020-06-04 | 2020-11-20 | 天晟电气股份有限公司 | Oil-immersed type full-sealed transformer capable of adjusting pressure |
| CN112105230A (en) * | 2020-09-18 | 2020-12-18 | 南京利硕斯机电设备有限公司 | Electromechanical device loading box with shock absorption and heat dissipation functions |
| CN213210804U (en) * | 2020-09-30 | 2021-05-14 | 大连宇科创新科技有限公司 | Gas pressure control device of fuel cell testing platform |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101456557B (en) * | 2008-12-25 | 2011-04-20 | 青岛科技大学 | Reducing furnace for polycrystalline silicon production |
| WO2017066219A2 (en) * | 2015-10-12 | 2017-04-20 | Emerson Process Management Regulator Technologies, Inc. | Balanced regulator with targeted boost sensing tube |
| CN207342939U (en) * | 2017-05-02 | 2018-05-11 | 广东贺尔环境技术有限公司 | Gas-vapor mix atomizing component |
| CN210374261U (en) * | 2019-04-30 | 2020-04-21 | 黄石祥宇轻工配件有限公司 | Fan for defrosting of refrigerator |
| CN111420315B (en) * | 2020-05-18 | 2021-06-18 | 南通香境生物医药科技有限公司 | Compressed oxygen self-rescuer that security performance is high |
-
2021
- 2021-06-25 CN CN202110709666.4A patent/CN113436835B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009500818A (en) * | 2005-06-29 | 2009-01-08 | フィリップ マニエ | Transformer explosion prevention device |
| CN108321704A (en) * | 2018-02-27 | 2018-07-24 | 张乃月 | Explosion-proof positive pressure power distribution cabinet |
| CN109027659A (en) * | 2018-09-17 | 2018-12-18 | 江西省烈岩机械有限公司 | With the gas container from voltage stabilizing function |
| CN109342124A (en) * | 2018-12-08 | 2019-02-15 | 大连函量科技发展有限公司 | A kind of gas sampling detection device for laboratory |
| CN111082342A (en) * | 2019-12-28 | 2020-04-28 | 河南省森电智能装备有限公司 | Underground intelligent box-type transformer |
| CN211980374U (en) * | 2020-06-04 | 2020-11-20 | 天晟电气股份有限公司 | Oil-immersed type full-sealed transformer capable of adjusting pressure |
| CN112105230A (en) * | 2020-09-18 | 2020-12-18 | 南京利硕斯机电设备有限公司 | Electromechanical device loading box with shock absorption and heat dissipation functions |
| CN213210804U (en) * | 2020-09-30 | 2021-05-14 | 大连宇科创新科技有限公司 | Gas pressure control device of fuel cell testing platform |
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