CN219867445U - Micro-positive pressure device for enclosed bus - Google Patents
Micro-positive pressure device for enclosed bus Download PDFInfo
- Publication number
- CN219867445U CN219867445U CN202320188353.3U CN202320188353U CN219867445U CN 219867445 U CN219867445 U CN 219867445U CN 202320188353 U CN202320188353 U CN 202320188353U CN 219867445 U CN219867445 U CN 219867445U
- Authority
- CN
- China
- Prior art keywords
- air
- door
- bus
- sealing
- air inlet
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims description 50
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 5
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 5
- 230000002209 hydrophobic effect Effects 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 3
- 239000013589 supplement Substances 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
Landscapes
- Control Of Fluid Pressure (AREA)
Abstract
The utility model relates to a micro-positive pressure device for a closed bus, which comprises an instrument air supply manual door, an air storage tank pressure sensor, an air compressor air supply manual door, a control cabinet and a check door, wherein an air outlet of the instrument air supply manual door is connected with an air inlet of the check door, an air outlet of the air compressor is connected with an air inlet of the air compressor air supply manual door, an air outlet of the air compressor air supply manual door and an air outlet of the check door are connected with an air inlet of the air storage tank, and the air storage tank pressure sensor penetrates through the side wall of the air storage tank and is used for detecting air pressure in the air storage tank and sending signals to the control cabinet. The utility model realizes automatic inflation and exhaust of the enclosed bus, maintains the pressure and humidity of the gas in the enclosed bus at safe level, and avoids potential safety hazard caused by the entry of moisture into the enclosed bus.
Description
Technical Field
The utility model relates to the technical field of power generation, in particular to a micro-positive pressure device for a closed bus.
Background
At present, in the generator sets of most of domestic thermal power plants, a closed bus is a large-current transmission device widely applied to the thermal power plants. Under the long-time running state of the enclosed bus, the original sealing structure of the enclosed bus is easily damaged due to the factors of ageing of the sealant, displacement of a civil foundation, vibration of a transmission unit and the like, so that air inside and outside the enclosed bus shell flows mutually, and when outside air flows in, dust, salt mist and the like enter the inside of the shell along with the air flow, so that the inside of the bus is polluted and condensed; during the shutdown of the enclosed bus, because the air pressure and the air temperature in the enclosed bus shell gradually decrease, dew condensation is easy to occur, and external air is easy to leak from an inexact place. When the outside air flows in and the enclosed bus stops running, the insulation strength of the enclosed bus can be reduced, and the hidden trouble that the unit stops normally caused by the grounding flashover of the bus exists.
Disclosure of Invention
In order to solve the problem that the external air invades into the shell of the enclosed bus, the utility model provides a micro-positive pressure device of the enclosed bus.
The utility model provides a micro-positive pressure device for a closed bus, which comprises an instrument gas supply manual door, a gas storage tank pressure sensor, an air compressor gas supply manual door, a control cabinet and a check door, wherein the air storage tank pressure sensor is arranged on the instrument gas supply manual door;
the air outlet of the instrument air supply manual door is connected with the air inlet of the check door;
the air outlet of the air compressor is connected with the air inlet of the air compressor air supply manual door;
the air outlet of the air compressor air supply manual door and the air outlet of the check door are connected with the air inlet of the air storage tank;
the gas storage tank pressure sensor is arranged on the side wall of the gas storage tank and is used for detecting the gas pressure in the gas storage tank and sending signals to the control cabinet.
In some embodiments, the micro-positive pressure device further comprises a dryer, a hydrophobic door, an air inlet main door, a sealed bus air inlet pneumatic door and a sealed bus;
the air outlet of the air storage tank is connected with the air inlet of the dryer;
the air outlet of the dryer is connected with the air inlet of the air inlet main door;
the air outlet of the air inlet main door is connected with the air inlet of the sealing mother air inlet pneumatic door;
the air outlet of the sealed busbar air inlet pneumatic door is connected with the air inlet of the sealed busbar;
the hydrophobic door is arranged at the air inlet close to the air inlet main door.
In some embodiments, the micro-positive pressure device further comprises a seal master pressure sensor and a seal master humidity sensor;
the sealing busbar pressure sensor and the sealing busbar humidity sensor are respectively arranged at one end of the sealing busbar close to the transformer.
In some embodiments, if the pressure of the gas in the enclosed bus reaches a normal pressure value, the enclosed bus pressure sensor sends a normal pressure signal to the control cabinet, and the control cabinet controls the enclosed bus air inlet pneumatic door to be closed;
if the gas pressure in the enclosed bus is reduced to the pressure alarm value, the enclosed bus pressure sensor sends a low pressure signal to the control cabinet; the control cabinet controls the sealing bus air inlet pneumatic door to be opened, and compressed air is supplemented into the sealing bus until the gas pressure of the sealing bus reaches a pressure normal value.
In some embodiments, if the air humidity in the enclosed bus reaches the humidity alarm value, the enclosed bus humidity sensor sends an enclosed bus humidity high signal to the control cabinet, the control cabinet controls the enclosed bus air inlet pneumatic door and the enclosed bus air outlet pneumatic door to be opened, and the compressed air in the enclosed bus is exhausted and supplemented until the air humidity reaches the humidity normal value; the sealing nut humidity sensor sends a humidity normal signal to the control cabinet, and the control cabinet controls the sealing nut air inlet pneumatic door and the sealing nut air outlet pneumatic door to be closed.
In some embodiments, the device further comprises a seal nut vent manual door, a seal nut vent pneumatic door;
if the sealing bus exhaust pneumatic door is opened by mistake in the sealing bus, closing the sealing bus exhaust manual door to keep the pressure of gas in the sealing bus; if the sealing master exhaust pneumatic door is closed by mistake, the sealing master exhaust pneumatic door is automatically opened by cutting off the air source.
In some embodiments, the micro-positive pressure device further comprises a ventilator; the shell of the respirator is made of transparent materials, anhydrous copper sulfate particles are arranged in the shell, and the anhydrous copper sulfate absorbs water and turns blue and is used for assisting in judging whether the compressed air entering the enclosed bus is sufficiently dried or not.
In some embodiments, the instrument air supply manual door, the air storage tank pressure sensor, the air compressor air supply manual door, the control cabinet and the check valve are connected through pipelines.
The utility model has the beneficial effects that: the technical scheme adopted by the utility model has the following advantages:
(1) The device adopts the gas supply of the gas for the instrument and the double gas sources of the air compressor, and realizes the automatic switching of the double gas sources when the gas pressure of the gas storage tank is low by arranging a check valve on a gas supply pipeline for the gas for the instrument and arranging the self-starting logic of the air compressor.
(2) The automatic inflation and the automatic deflation of the enclosed bus are realized by judging the pressure and the humidity of the gas introduced into the enclosed bus and matching with the automatic opening and closing of the air inlet pneumatic door and the air outlet pneumatic door of the enclosed bus, the pressure and the humidity of the gas in the enclosed bus are maintained at the safety level, and the potential safety hazard caused by the fact that moisture enters the enclosed bus is avoided.
(3) Each phase of enclosed bus can be independently inflated and exhausted, so that energy is saved, and the problem that the pressure of one phase is too high due to the fact that three phases are inflated together in the existing scheme can be avoided.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a micro positive pressure device for closing a bus bar according to the present utility model;
FIG. 2 is a schematic diagram of the control logic of the seal master intake pneumatic door and seal master exhaust pneumatic door of the present utility model.
In the attached drawings, 1, an air compressor; 2. a gas storage tank; 3. a dryer; 4. a respirator; 5. a control cabinet; 6. closing the bus; 7. a transformer; 8. a manual door for gas supply for the instrument; 9. a check door; 10. the air compressor is provided with a manual door; 11. an air inlet main door; 12. sealing the mother air inlet pneumatic door; 13. sealing the nut exhaust manual door; 14. sealing the mother exhaust pneumatic door; 15. a hydrophobic door; 16. a gas storage tank pressure sensor; 17. sealing the mother pressure sensor; 18. sealing the mother humidity sensor; 19. a pipeline.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Examples of the embodiments are illustrated in the accompanying drawings, wherein like or similar symbols indicate like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "top," "bottom," "inner," "outer," "axis," "circumferential," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience in describing the present utility model or simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," "engaged," "hinged," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1 and 2, a micro-positive pressure device for closing a bus 6 comprises an instrument gas supply manual door 8, a gas storage tank 2 pressure sensor 16, an air compressor 1 gas supply manual door 10, a control cabinet 5 and a check door 9. The air outlet of the manual air supply door 8 is connected with the air inlet of the check door 9. The air outlet of the air compressor 1 is connected with the air inlet of the air compressor 1 air supply manual door 10. The air outlet of the air compressor 1 air supply manual door 10 and the air outlet of the check door 9 are connected with the air inlet of the air storage tank 2. The pressure sensor 16 of the air storage tank 2 is arranged on the side wall of the air storage tank 2 and is used for detecting the air pressure in the air storage tank 2 and sending a signal to the control cabinet 5.
In some embodiments of the present utility model, the micro-positive pressure device further comprises a dryer 3, a drain door 15, an air inlet main door 11, a sealed bus air inlet pneumatic door 12 and a sealed bus 6.
The air outlet of the air storage tank 2 is connected with the air inlet of the dryer 3.
The air outlet of the dryer 3 is connected with the air inlet of the air inlet main door 11.
The air outlet of the air inlet main door 11 is connected with the air inlet of the sealing mother air inlet pneumatic door 12.
The air outlet of the sealed busbar air inlet pneumatic door 12 is connected with the air inlet of the sealed busbar 6.
The hydrophobic door 15 is disposed near the air inlet of the intake main door 11.
In some embodiments of the utility model, the micro-positive pressure device further comprises a seal matrix pressure sensor 17 and a seal matrix humidity sensor 18.
The closing bus pressure sensor 17 and the closing bus humidity sensor 18 are both arranged at the end of the closing bus 6 close to the transformer 7.
In some embodiments of the present utility model, if the pressure of the gas in the enclosed busbar 6 reaches the normal pressure value, the enclosed busbar pressure sensor 17 sends a normal pressure signal to the control cabinet 5, and the control cabinet 5 controls the enclosed busbar air inlet pneumatic door 12 to be closed.
If the gas pressure in the enclosed busbar 6 decreases to a pressure alarm value, the enclosed busbar pressure sensor 17 sends a low pressure signal to the control cabinet 5. The control cabinet 5 controls the opening of the sealed busbar air inlet pneumatic door 12, and supplements compressed air into the sealed busbar 6 until the gas pressure of the sealed busbar 6 reaches a normal pressure value.
In some embodiments of the present utility model, if the humidity of the gas in the enclosed bus 6 reaches the humidity alarm value, the enclosed bus humidity sensor 18 sends a signal that the humidity of the enclosed bus 6 is high to the control cabinet 5. The control cabinet 5 controls the opening of the sealed busbar air inlet pneumatic door 12 and the sealed busbar air outlet pneumatic door 14 to exhaust and supplement the compressed air in the sealed busbar 6 until the air humidity reaches the humidity normal value. The envelope humidity sensor 18 sends a humidity normal signal to the control cabinet 5. The control cabinet 5 controls the closing of the closing inlet pneumatic door 12 and the closing outlet pneumatic door 14.
In some embodiments of the present utility model, the micro-positive pressure device further comprises a sealing mother exhaust manual door 13 and a sealing mother exhaust pneumatic door 14.
If the sealing bus air exhaust pneumatic door 14 in the sealing bus 6 is opened by mistake, the sealing bus air exhaust manual door 13 is closed to maintain the air pressure in the sealing bus. When the sealing master exhaust pneumatic door 14 is closed by mistake, the sealing master exhaust pneumatic door is automatically opened by cutting off the air source.
In some embodiments of the utility model, the micro-positive pressure device further comprises a ventilator 4; the shell of the respirator 4 is transparent, and is internally provided with anhydrous copper sulfate particles, and the anhydrous copper sulfate absorbs water to turn blue, so as to assist in judging whether the compressed air entering the enclosed bus 6 is sufficiently dry.
In some embodiments of the utility model, the instrument air supply manual door, the air storage tank pressure sensor, the air compressor air supply manual door, the control cabinet and the check door are connected through a pipeline 19.
The utility model has the beneficial effects that: the technical scheme adopted by the utility model has the following advantages:
(1) The device adopts the gas supply of the dual gas sources of the gas for instrument and the air compressor 1, and realizes the automatic switching of the dual gas sources when the gas pressure of the gas storage tank 2 is low by arranging the check valve 9 on the gas supply pipeline for the gas for instrument and arranging the self-starting logic of the air compressor 1.
(2) By judging the pressure and humidity values of the gas introduced into the enclosed bus 6 and matching with the automatic opening and closing of the air inlet pneumatic door 12 and the air outlet pneumatic door 14 of the enclosed bus 6, the air inflation and the air exhaust of the enclosed bus 6 are realized, the pressure and the humidity of the gas in the enclosed bus 6 are maintained at safe levels, and the potential safety hazard caused by the fact that the moisture enters the enclosed bus 6 is avoided.
(3) The enclosed buses 6 of each phase can be independently inflated and exhausted, so that energy is saved, and the problem that the pressure of one phase is too high due to the fact that three phases are inflated together in the existing scheme can be avoided.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "examples," "particular examples," "one particular embodiment," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The present utility model is not limited to the above preferred embodiments, and any person skilled in the art, within the scope of the present utility model, may apply to the present utility model, and equivalents and modifications thereof are intended to be included in the scope of the present utility model.
Claims (8)
1. A micro-positive pressure device for a closed bus, the micro-positive pressure device comprising: the device comprises an instrument air supply manual door, an air storage tank pressure sensor, an air compressor air supply manual door, a control cabinet and a check valve;
the air outlet of the instrument air supply manual door is connected with the air inlet of the check door;
the air outlet of the air compressor is connected with the air inlet of the air supply manual door of the air compressor;
the air outlet of the air compressor air supply manual door and the air outlet of the check door are connected with the air inlet of the air storage tank;
the gas storage tank pressure sensor is arranged on the side wall of the gas storage tank and is used for detecting the gas pressure in the gas storage tank and sending signals to the control cabinet.
2. The enclosed busbar micro-positive pressure device of claim 1, further comprising a dryer, a hydrophobic gate and a total air inlet gate, a sealed busbar air inlet pneumatic gate, and an enclosed busbar;
the air outlet of the air storage tank is connected with the air inlet of the dryer;
the air outlet of the dryer is connected with the air inlet of the air inlet main door;
the air outlet of the air inlet main door is connected with the air inlet of the sealing mother air inlet pneumatic door;
the air outlet of the sealing bus air inlet pneumatic door is connected with the air inlet of the sealing bus;
the drain door is arranged at an air inlet close to the air inlet main door.
3. The enclosed busbar micro positive pressure device of claim 2, further comprising a busbar sealing pressure sensor and a busbar sealing humidity sensor;
the sealing busbar pressure sensor and the sealing busbar humidity sensor are respectively arranged at one end of the sealing busbar close to the transformer.
4. The micro positive pressure device of the enclosed bus according to claim 3, wherein if the gas pressure in the enclosed bus reaches a pressure normal value, the enclosed bus pressure sensor sends a pressure normal signal to the control cabinet, and the control cabinet controls the enclosed bus air inlet pneumatic door to be closed;
if the gas pressure in the enclosed bus is reduced to a pressure alarm value, the enclosed bus pressure sensor sends a low pressure signal to the control cabinet; and the control cabinet controls the opening of the sealed busbar air inlet pneumatic door, and supplements compressed air into the sealed busbar until the gas pressure of the sealed busbar reaches a pressure normal value.
5. The micro positive pressure device of the enclosed bus according to claim 3, wherein if the gas humidity in the enclosed bus reaches a humidity alarm value, the enclosed bus humidity sensor sends the enclosed bus humidity high signal to the control cabinet, the control cabinet controls the enclosed bus air inlet pneumatic door and the enclosed bus air outlet pneumatic door to be opened, and the compressed air in the enclosed bus is supplemented until the gas humidity reaches a humidity normal value; the sealing nut humidity sensor sends a humidity normal signal to the control cabinet, and the control cabinet controls the sealing nut air inlet pneumatic door and the sealing nut air outlet pneumatic door to be closed.
6. The micro-positive pressure device for closing the bus bar according to claim 1, wherein the micro-positive pressure device further comprises a sealing bus bar exhaust manual door and a sealing bus bar exhaust pneumatic door;
if the sealing bus exhaust pneumatic door in the sealing bus is opened by mistake, closing the sealing bus exhaust manual door to keep the pressure of the gas in the sealing bus; when the sealing master exhaust pneumatic door is closed by mistake, the sealing master exhaust pneumatic door is automatically opened by cutting off an air source.
7. The enclosed busbar micro-positive pressure device of claim 1, further comprising a respirator; the shell of the respirator is made of transparent materials, and anhydrous copper sulfate particles are arranged in the shell.
8. The micro-positive pressure device of the enclosed busbar according to any one of claims 1 to 7, wherein the instrument air supply manual door, the air storage tank and the air storage tank pressure sensor, the air compressor air supply manual door, the control cabinet and the check door are connected through pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320188353.3U CN219867445U (en) | 2023-02-08 | 2023-02-08 | Micro-positive pressure device for enclosed bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320188353.3U CN219867445U (en) | 2023-02-08 | 2023-02-08 | Micro-positive pressure device for enclosed bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219867445U true CN219867445U (en) | 2023-10-20 |
Family
ID=88346579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320188353.3U Active CN219867445U (en) | 2023-02-08 | 2023-02-08 | Micro-positive pressure device for enclosed bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219867445U (en) |
-
2023
- 2023-02-08 CN CN202320188353.3U patent/CN219867445U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104157406B (en) | Transformer capsule type oil storage cabinet | |
| CN102563341B (en) | SF6 (sulphur hexafluoride) gas combined charging and discharging device | |
| CN108321704A (en) | Explosion-proof positive pressure power distribution cabinet | |
| CN207097909U (en) | A kind of battery bag | |
| CN110159854A (en) | A kind of sulfur hexafluoride equipment tonifying Qi crossover sub, air compensating system and its supplementing method for air | |
| CN219867445U (en) | Micro-positive pressure device for enclosed bus | |
| CN210926071U (en) | Air replacement type condensation water prevention battery pack and humidity detection system thereof | |
| CN209561549U (en) | A fuel cell stack casing structure | |
| CN114899752A (en) | Prefabricated cabin type ventilation explosion-proof pressure relief device | |
| CN110067730A (en) | A kind of EMU pump box cell arrangement and its manufacturing method | |
| CN210531864U (en) | A pipeline blocking airbag device | |
| CN207097939U (en) | A kind of battery bag | |
| CN211743702U (en) | GGD low-voltage moisture-proof switch cabinet | |
| CN206878349U (en) | A kind of low-voltage safety electric power cabinet system and device | |
| CN206947791U (en) | Safety series distribution box body | |
| CN215451086U (en) | Electric reactor for subway | |
| CN201287606Y (en) | Drafting apparatus for rapidly discharging thermal energy from inside to outside of automotive vehicle | |
| CN222283654U (en) | A dehumidification explosion-proof box for electric control system | |
| CN209487999U (en) | A kind of moisture-proof ventilative distribution box | |
| WO2000003142A1 (en) | Frequency converter assembly | |
| CN220325032U (en) | Constant temperature and humidity totally enclosed low pressure control case | |
| CN217746459U (en) | Dehumidification fan-type dehydrating unit based on metal switch cabinet | |
| CN109248545B (en) | Micro water treatment system for combined substation | |
| CN115133414A (en) | Low-voltage switchgear with fireproof effect | |
| CN207268024U (en) | The exhaust system and pneumatic membrane building of pneumatic membrane building |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |