CN109200776B - Anti-condensation system between underground transformer substation equipment - Google Patents
Anti-condensation system between underground transformer substation equipment Download PDFInfo
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- CN109200776B CN109200776B CN201811158898.XA CN201811158898A CN109200776B CN 109200776 B CN109200776 B CN 109200776B CN 201811158898 A CN201811158898 A CN 201811158898A CN 109200776 B CN109200776 B CN 109200776B
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- 238000009833 condensation Methods 0.000 title claims abstract description 64
- 230000007246 mechanism Effects 0.000 claims abstract description 100
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 230000005494 condensation Effects 0.000 claims abstract description 55
- 238000010438 heat treatment Methods 0.000 claims abstract description 44
- 238000012544 monitoring process Methods 0.000 claims abstract description 17
- 238000001816 cooling Methods 0.000 claims description 35
- 238000010521 absorption reaction Methods 0.000 claims description 21
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 6
- 229920000728 polyester Polymers 0.000 claims description 6
- 238000010025 steaming Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 4
- 230000002265 prevention Effects 0.000 abstract description 7
- 230000008859 change Effects 0.000 abstract description 3
- 238000005057 refrigeration Methods 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000007790 scraping Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/265—Drying gases or vapours by refrigeration (condensation)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Drying Of Gases (AREA)
- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
Abstract
The utility model provides an inter-equipment condensation prevention system of an underground transformer substation, which comprises a monitoring mechanism and a control mechanism which are arranged in an equipment room, a first condensation mechanism arranged at the lower part of the equipment room, a heating mechanism which is arranged in the equipment room and corresponds to equipment, and a second condensation mechanism which is arranged in the equipment room and is positioned above the equipment; the utility model can monitor the humidity in the underground substation equipment room, separate the moisture from the air in a condensation mode, and change the position of the water drop condensation, so that the condensation phenomenon of the equipment can not occur, and the safety of the equipment in operation is greatly improved.
Description
Technical Field
The utility model relates to the technical field of operation and maintenance of power equipment, in particular to an anti-condensation system between underground transformer substation equipment.
Background
With the gradual increase of surface buildings, the design scheme of underground substations is adopted in many substation designs in cities, so that the number of underground substation evidences is gradually increased. However, the underground transformer substation faces a lot of problems, particularly in the south area, the underground transformer substation is cool and moist in winter, the temperature of the underground transformer substation is lower and the humidity of the underground transformer substation is higher, condensation phenomenon is easy to occur on equipment among equipment in the transformer substation, water drops are attached to the inside or the outside of the equipment, and damage to the equipment is caused, so that the underground transformer substation is an important point for preventing condensation.
The patent with the publication number of 201708467U discloses an underground transformer substation environment improvement control system, which comprises a humidity control device, an exhaust emission subsystem, a dust control device, a noise control device, an oil pollution control device, an oxygen content detector, an SF6 leakage alarm device, a temporary access management subsystem and a temporary electronic system, wherein the temporary electronic system is respectively connected with the humidity control device, the exhaust emission subsystem, the dust control device, the noise control device, the oil pollution control device, the oxygen content detector, the SF6 leakage alarm device and the temporary access management subsystem. Compared with the prior art, the utility model has the advantages of good noise control, good ventilation performance, good dehumidification effect and the like. However, the method does not specially remove the moisture in the air, but adopts a ventilation mode, but the outside humidity is also very high, so that the method cannot completely remove the condensation.
The patent with publication number 102545078A relates to a heat dissipation and ventilation control method for underground substation equipment, which comprises the following steps: 1) Radiating the underground substation equipment by adopting radiation heat transfer and convection heat transfer; 2) An air exhaust prevention system is arranged to strengthen the air flow of the underground transformer substation; 3) Selecting equipment of the air exhaust prevention system according to the heat dissipation capacity of the equipment; 4) Determining the specification of an air pipe according to equipment of an air exhaust prevention system; 5) And manufacturing and installing the determined air pipes according to different requirements. Compared with the prior art, the utility model provides a reasonable complete scheme for cooling the underground transformer substation, and can ensure the environmental conditions required by the safe operation of the process equipment of the underground transformer substation according to the ventilation temperature and the recommended value of the proper ventilation quantity, so that the equipment can exert greater working efficiency while safely operating. The patent still uses a ventilated dehumidifier, and the effect is still not viable.
Disclosure of Invention
In view of the above, the utility model provides an inter-equipment anti-condensation system for an underground transformer substation, which can monitor the humidity in an underground transformer substation equipment room, separate moisture from air in a condensation manner, and change the position of condensation of water drops so that the equipment cannot generate condensation phenomenon.
In order to solve the problems, the utility model provides an inter-equipment condensation prevention system of an underground transformer substation, which comprises a monitoring mechanism and a control mechanism which are arranged in an equipment room, a first condensation mechanism which is arranged at the lower part of the equipment room, a heating mechanism which is arranged in the equipment room and corresponds to equipment, and a second condensation mechanism which is arranged in the equipment room and is positioned above the equipment;
the first condensing mechanism comprises a refrigerating cavity arranged on the side wall of the equipment room, a heat preservation layer is arranged on the inner surface of the refrigerating cavity, a cooling plate is arranged in the refrigerating cavity, a flow cavity is arranged in the cooling plate in a hollow mode, an air outlet communicated with the flow cavity is arranged at the upper end of the cooling plate, an air inlet communicated with the flow cavity is arranged at the lower end of the cooling plate, the air inlet is communicated with the refrigerating mechanism, and the air outlet is communicated with the second condensing mechanism;
the control mechanism is in signal connection with the monitoring mechanism, the heating mechanism and the refrigerating mechanism.
Further, the control mechanism adopts a microcontroller, and the monitoring mechanism comprises a temperature sensor and a humidity sensor.
Furthermore, the refrigerating mechanism adopts a central air conditioner, and a cold air pipeline of the central air conditioner is communicated with the air inlet through a first communication pipe.
Further, the cooling plate outside sets up the comdenstion water and clears away the mechanism, the comdenstion water clear away the mechanism include the diaphragm that the cooling plate lower extreme lateral surface set up, set up the strip that absorbs water on the diaphragm, set up the base on the equipment room lateral wall, set up the lifter on the base, the lifter upper end sets up the support of L type, the tip level of support set up with the rubber of cooling plate contact is scraped the strip.
Further, the water absorption strip comprises a water absorption core and a water permeable layer wrapping the water absorption core, wherein the water absorption core adopts water absorption resin particles, and the water permeable layer adopts polyester cloth.
Further, the heating mechanism comprises a bottom plate, the universal wheel is arranged below the bottom plate, a handle is arranged on one side of the bottom plate, a heating cylinder is arranged on the bottom plate, a heating resistance wire is arranged in the heating cylinder, a fan is arranged at the tail end of the heating cylinder, and the fan and the heating resistance wire are connected with a wire plug through a switch arranged on the heating cylinder.
Further, the second condensation mechanism includes the condenser pipe that equipment room top set up, the condenser pipe below sets up the water catch bowl through the connecting rod, the water catch bowl middle part sets up prevents evaporating the board, prevent evaporating and set up a plurality of through-hole on the board, water catch bowl one end bottom and drain pipe intercommunication, the one end of condenser pipe pass through the second communicating pipe with the gas outlet intercommunication, the other end and the blast pipe intercommunication of condenser pipe.
The utility model provides an inter-equipment condensation prevention system of an underground transformer substation, which comprises a monitoring mechanism and a control mechanism which are arranged in an equipment room, a first condensation mechanism arranged at the lower part of the equipment room, a heating mechanism which is arranged in the equipment room and corresponds to equipment, and a second condensation mechanism which is arranged in the equipment room and is positioned above the equipment;
the first condensing mechanism comprises a refrigerating cavity arranged on the side wall of the equipment room, a heat preservation layer is arranged on the inner surface of the refrigerating cavity, a cooling plate is arranged in the refrigerating cavity, a flow cavity is arranged in the cooling plate in a hollow mode, an air outlet communicated with the flow cavity is arranged at the upper end of the cooling plate, an air inlet communicated with the flow cavity is arranged at the lower end of the cooling plate, the air inlet is communicated with the refrigerating mechanism, and the air outlet is communicated with the second condensing mechanism;
the control mechanism is in signal connection with the monitoring mechanism, the heating mechanism and the refrigerating mechanism.
The monitoring mechanism monitors the temperature and the humidity in the equipment room, the control mechanism judges whether the monitoring information is exceeded after receiving the monitoring information, and the refrigerating mechanism is started to work after the monitoring information is exceeded, so that cold air passes through the first condensing mechanism to condense water vapor in the equipment room. The air conditioning passes through from the refrigeration intracavity, cools down the cooling plate, and the temperature of cooling plate is less than equipment, also is lower than ambient temperature, and steam just can produce the condensation on cooling plate surface, shifts the position of condensation and protects equipment and reduce the humidity of air simultaneously. The air outlet sends the air conditioning into second condensation mechanism, and second condensation mechanism and heating mechanism cooperation are better to the condensation effect of steam, and can more effectively prevent equipment from taking place the condensation.
The control mechanism adopts a microcontroller, and the monitoring mechanism comprises a temperature sensor and a humidity sensor. The control mechanism is controlled by a microcontroller, a main control chip can adopt an 89C51 singlechip, and temperature and humidity sensors can adopt HTU21 temperature and humidity sensors or independent sensors such as DS18B20 and HF3223 type humidity sensors.
The refrigerating mechanism adopts a central air conditioner, and a cold air pipeline of the central air conditioner is communicated with the air inlet through a first communication pipe. The refrigerating mechanism can use a central air conditioner, and can provide cold air for a plurality of equipment rooms at the same time by arranging cold air pipelines.
The cooling plate outside sets up the comdenstion water and clears away the mechanism, the comdenstion water clear away the mechanism include the diaphragm that the cooling plate lower extreme lateral surface set up, set up the strip that absorbs water on the diaphragm, set up the base on the equipment room lateral wall, set up the lifter on the base, the lifter upper end sets up the support of L type, the tip level of support set up with the rubber of cooling plate contact is scraped the strip. The water drops can be attached to the outer side surface of the cooling plate, and the water drops need to be removed in time or volatilized into the air again, so that a condensed water removing mechanism is arranged. The lifting rod is preferably an electric telescopic rod which is matched with the control mechanism, and after the central air conditioner is started, the lifting rod is opened and water drops are removed according to the frequency of one hour. The rubber scraping strip is positioned at the uppermost part of the heat-conducting plate, the lifting rod is contracted downwards when the condensation needs to be removed, and the rubber scraping strip scrapes water from the cooling plate and is converged on the transverse plate to be absorbed by the water absorbing strip. After the cleaning is finished, the lifting rod is produced, so that the rubber scraping strip is continuously positioned at the highest position of the cooling plate, and the next operation is waited. The water absorption strip is placed through the transverse plate, so that water drops can be absorbed.
The water absorption strip comprises a water absorption core and a water permeable layer wrapping the water absorption core, wherein the water absorption core adopts water absorption resin particles, and the water permeable layer adopts polyester cloth. The water-absorbing resin can absorb a large amount of water and is difficult to volatilize water again, so that the water-absorbing resin particles are wrapped into a strip shape by the water-permeable layer supported by the polyester cloth and placed on the transverse plate to absorb water, and the polyester cloth is adopted because the wear resistance is good and the elasticity is high, so that the water-absorbing resin is prevented from expanding after absorbing water to break the water-permeable layer.
The heating mechanism comprises a bottom plate, the universal wheel is arranged below the bottom plate, a handle is arranged on one side of the bottom plate, a heating cylinder is arranged on the bottom plate, a heating resistance wire is arranged in the heating cylinder, a fan is arranged at the tail end of the heating cylinder, and the fan and the heating resistance wire are connected with an electric wire plug through a switch arranged on the heating cylinder. The heating mechanism acts as a separate working element in order to avoid condensation of moisture on the device in case of excessive moisture. When a certain device needs to be protected, the bottom plate is pushed to the front of the device, the wire plug is inserted into the socket, the switch on the heating cylinder is turned on, the air outlet of the heating cylinder is aligned to the device, and the surrounding environment of the device is heated, so that condensation cannot occur.
The second condensation mechanism comprises a condensation pipe arranged at the top of the equipment room, a water collecting tank is arranged below the condensation pipe through a connecting rod, an anti-steaming plate is arranged in the middle of the water collecting tank, a plurality of through holes are formed in the anti-steaming plate, one end of the water collecting tank is communicated with a drain pipe, one end of the condensation pipe is communicated with the air outlet through a second communicating pipe, and the other end of the condensation pipe is communicated with an exhaust pipe. The second condensation mechanism is matched with the heating mechanism, the second condensation mechanism is preferably located above the equipment, after the heating mechanism works, the annual region of the equipment is heated, hot gas rises, water can be condensed on the condensation pipe when encountering the second condensation mechanism, after more water drops, the water drops can fall into the water collecting tank, and the water drops from the through hole of the steaming-proof plate to the bottom of the water collecting tank and are discharged through the drain pipe.
The utility model can monitor the humidity in the underground substation equipment room, separate the moisture from the air in a condensation mode, and change the position of the water drop condensation, so that the condensation phenomenon of the equipment can not occur, and the safety of the equipment in operation is greatly improved.
Drawings
FIG. 1 is a schematic diagram of an anti-condensation system between underground substation equipment;
FIG. 2 is a schematic view of a condensate removal mechanism according to the present utility model;
FIG. 3 is a schematic view of the structure of the absorbent strip of the present utility model;
fig. 4 is a schematic structural view of the heating mechanism of the present utility model.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 4 of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the utility model, fall within the scope of protection of the utility model.
The first embodiment provides an inter-equipment condensation prevention system of an underground transformer substation, which comprises a monitoring mechanism 8 and a control mechanism 9 which are arranged in an equipment room, a first condensation mechanism arranged at the lower part in the equipment room, a heating mechanism which is arranged in the equipment room 5 and corresponds to equipment, and a second condensation mechanism which is arranged in the equipment room and is positioned above the equipment;
the first condensation mechanism comprises a refrigeration cavity 32 arranged on the side wall of the equipment room, a heat preservation layer 12 is arranged on the inner surface of the refrigeration cavity 32, a cooling plate 31 is arranged in the refrigeration cavity 32, a flow cavity 13 is arranged in the cooling plate 31 in a hollow mode, an air outlet 11 communicated with the flow cavity 13 is arranged at the upper end of the cooling plate 31, an air inlet 30 communicated with the flow cavity 13 is arranged at the lower end of the cooling plate 31, the air inlet 30 is communicated with the refrigeration mechanism, and the air outlet 11 is communicated with the second condensation mechanism;
the control mechanism 9 is in signal connection with the monitoring mechanism 8, the heating mechanism and the refrigerating mechanism.
The control mechanism 9 adopts a microcontroller, and the monitoring mechanism 8 comprises a temperature sensor and a humidity sensor.
The refrigerating mechanism adopts a central air conditioner, and a cold air pipeline 17 of the central air conditioner is communicated with an air inlet 30 through a first communication pipe 16.
Embodiment two differs from embodiment one in that:
the cooling plate 31 outside sets up the comdenstion water and clears up the mechanism, the comdenstion water clear up the mechanism include the diaphragm 15 that the cooling plate 31 lower extreme lateral surface set up, set up the strip 14 that absorbs water on the diaphragm, set up base 21 on the equipment room lateral wall, set up lifter 20 on the base 21, lifter 20 upper end sets up the support 19 of L type, the tip level of support 19 set up with the rubber of cooling plate 31 contact scrapes strip 18.
The water absorption strip 14 comprises a water absorption core 23 and a water permeable layer 22 wrapping the water absorption core 23, wherein the water absorption core 23 adopts water absorption resin particles, and the water permeable layer 22 adopts polyester cloth.
Embodiment three differs from embodiment one in that:
the heating mechanism comprises a bottom plate 25, universal wheels 24 are arranged below the bottom plate 25, a handle 29 is arranged on one side of the bottom plate 25, a heating cylinder 27 is arranged on the bottom plate 25, a heating resistance wire 26 is arranged in the heating cylinder 27, a fan 28 is arranged at the tail end of the heating cylinder 27, and the fan 28 and the heating resistance wire 26 are connected with a wire plug through a switch arranged on the heating cylinder 27.
The second condensation mechanism comprises a condensation pipe 1 arranged at the top of the equipment room, a water collecting tank 3 is arranged below the condensation pipe 1 through a connecting rod 2, an anti-steaming plate 4 is arranged in the middle of the water collecting tank 3, a plurality of through holes are formed in the anti-steaming plate 4, one end bottom of the water collecting tank 3 is communicated with a drain pipe 7, one end of the condensation pipe 1 is communicated with an air outlet 11 through a second communicating pipe 10, and the other end of the condensation pipe 1 is communicated with an exhaust pipe 6.
While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.
Claims (4)
1. An anti-condensation system between underground substation equipment, which is characterized in that: the device comprises a monitoring mechanism and a control mechanism which are arranged in a device room, a first condensing mechanism which is arranged at the lower part of the device room, a heating mechanism which is arranged in the device room and corresponds to the device, and a second condensing mechanism which is arranged in the device room and is positioned above the device;
the first condensing mechanism comprises a refrigerating cavity arranged on the side wall of the equipment room, a heat preservation layer is arranged on the inner surface of the refrigerating cavity, a cooling plate is arranged in the refrigerating cavity, a flow cavity is arranged in the cooling plate in a hollow mode, an air outlet communicated with the flow cavity is arranged at the upper end of the cooling plate, an air inlet communicated with the flow cavity is arranged at the lower end of the cooling plate, the air inlet is communicated with the refrigerating mechanism, and the air outlet is communicated with the second condensing mechanism;
the control mechanism is in signal connection with the monitoring mechanism, the heating mechanism and the refrigerating mechanism, the control mechanism adopts a microcontroller, and the monitoring mechanism comprises a temperature sensor and a humidity sensor;
the heating mechanism comprises a bottom plate, a universal wheel is arranged below the bottom plate, a handle is arranged on one side of the bottom plate, a heating cylinder is arranged on the bottom plate, a heating resistance wire is arranged in the heating cylinder, a fan is arranged at the tail end of the heating cylinder, and the fan and the heating resistance wire are connected with an electric wire plug through a switch arranged on the heating cylinder;
the second condensation mechanism comprises a condensation pipe arranged at the top of the equipment room, a water collecting tank is arranged below the condensation pipe through a connecting rod, an anti-steaming plate is arranged in the middle of the water collecting tank, a plurality of through holes are formed in the anti-steaming plate, one end of the water collecting tank is communicated with a drain pipe, one end of the condensation pipe is communicated with the air outlet through a second communicating pipe, and the other end of the condensation pipe is communicated with an exhaust pipe.
2. The inter-underground substation equipment anti-condensation system according to claim 1, wherein: the refrigerating mechanism adopts a central air conditioner, and a cold air pipeline of the central air conditioner is communicated with the air inlet through a first communication pipe.
3. The inter-underground substation equipment anti-condensation system according to claim 2, wherein: the cooling plate outside sets up the comdenstion water and clears away the mechanism, the comdenstion water clear away the mechanism include the diaphragm that the cooling plate lower extreme lateral surface set up, set up the strip that absorbs water on the diaphragm, set up the base on the equipment room lateral wall, set up the lifter on the base, the lifter upper end sets up the support of L type, the tip level of support set up with the rubber of cooling plate contact is scraped the strip.
4. The inter-underground substation equipment anti-condensation system according to claim 3, wherein: the water absorption strip comprises a water absorption core and a water permeable layer wrapping the water absorption core, wherein the water absorption core adopts water absorption resin particles, and the water permeable layer adopts polyester cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811158898.XA CN109200776B (en) | 2018-09-30 | 2018-09-30 | Anti-condensation system between underground transformer substation equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811158898.XA CN109200776B (en) | 2018-09-30 | 2018-09-30 | Anti-condensation system between underground transformer substation equipment |
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| CN109200776A CN109200776A (en) | 2019-01-15 |
| CN109200776B true CN109200776B (en) | 2024-04-09 |
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| CN201811158898.XA Active CN109200776B (en) | 2018-09-30 | 2018-09-30 | Anti-condensation system between underground transformer substation equipment |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111082342B (en) * | 2019-12-28 | 2021-07-20 | 河南省森电电力设备股份有限公司 | Underground intelligent box-type transformer |
| CN111446648A (en) * | 2020-03-23 | 2020-07-24 | 深圳供电局有限公司 | Drainage system |
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| WO2017190167A1 (en) * | 2016-05-04 | 2017-11-09 | Ecool Advanced Urban Engineering Gmbh | Device for water recovery |
| CN208975490U (en) * | 2018-09-30 | 2019-06-14 | 国网河南省电力公司方城县供电公司 | A kind of underground substation equipment room condensation-preventing device |
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2018
- 2018-09-30 CN CN201811158898.XA patent/CN109200776B/en active Active
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| WO2012048921A2 (en) * | 2010-10-11 | 2012-04-19 | Tms Transport- Und Montagesysteme Gmbh | Method and a cleaning system for cleaning industrially produced components |
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