CN113377142A - GIS dust-proof room environment control system and method thereof - Google Patents
GIS dust-proof room environment control system and method thereof Download PDFInfo
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- CN113377142A CN113377142A CN202110667273.1A CN202110667273A CN113377142A CN 113377142 A CN113377142 A CN 113377142A CN 202110667273 A CN202110667273 A CN 202110667273A CN 113377142 A CN113377142 A CN 113377142A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000003749 cleanliness Effects 0.000 claims abstract description 64
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000007791 dehumidification Methods 0.000 claims abstract description 4
- 238000012544 monitoring process Methods 0.000 claims description 50
- 230000001105 regulatory effect Effects 0.000 claims description 22
- 239000000428 dust Substances 0.000 claims description 20
- 230000007613 environmental effect Effects 0.000 claims description 18
- 238000012806 monitoring device Methods 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 13
- 239000000523 sample Substances 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 19
- 238000011900 installation process Methods 0.000 description 9
- 230000001276 controlling effect Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000011217 control strategy Methods 0.000 description 4
- 241001669573 Galeorhinus galeus Species 0.000 description 3
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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Abstract
The invention discloses an environment control system and method for a GIS dust-proof room, which are used for detecting cleanliness, micro-positive pressure, temperature and humidity in the GIS dust-proof room, and increasing air intake and air exhaust volume in the GIS dust-proof room if the detected cleanliness is lower than a set cleanliness standard value; if micro-positive pressure is formed, the air inlet in the GIS dustproof chamber is increased and the air exhaust volume in the GIS dustproof chamber is reduced; if the detected temperature is lower than the set temperature minimum threshold value, heating the GIS dustproof chamber; and if the humidity is higher than the set highest humidity threshold, dehumidifying the GIS dustproof chamber, and if the humidity is lower than the set lowest humidity threshold, closing the dehumidification. The invention obtains the indoor environment state comprising cleanliness, temperature and humidity in real time, and regulates and controls the indoor environment state to ensure that the indoor cleanliness, the micro-positive pressure, the temperature and the humidity all meet the set requirements.
Description
Technical Field
The invention relates to a GIS dust-proof room environment control system and a method thereof, belonging to the technical field of power transmission and transformation assembly.
Background
GIS, English is called gas insulated station, the integration is higher, it is convenient to install, the operation is reliable, it is the core equipment in our country's new-type transformer substation. The GIS equipment installation maintenance process needs to carry out effective control on the installation environment, the improper control of environmental conditions in the installation process can cause the operation fault of the GIS equipment, and the serious can cause the partial discharge fault of the GIS equipment so as to cause great economic loss for the operation and maintenance of the power grid.
Simple and easy installation auxiliary assembly such as dustproof canopy mainly adopts in the current GIS installation, encloses the totally closed fender that keeps off formation airtight space isolated construction site dust through dustproof canopy building all around. However, the airtight space formed by the simple dustproof shed has poor air tightness and cannot effectively isolate external dust. Meanwhile, due to the lack of a corresponding monitoring and regulating device, the environmental temperature, humidity and cleanliness cannot be effectively monitored and regulated in the installation process of the equipment.
Patent CN107478272A discloses a GIS equipment butt joint environment real time monitoring instrument, through being equipped with monitoring sensor real time monitoring workshop internal environment state inside and outside dustproof assembly shop. The current environment state is obtained in real time through real-time monitoring of indoor environment parameters, and a construction instruction of whether the GIS equipment installation environment is met is given. The invention mainly designs the GIS installation indoor environment parameter monitoring system, and does not relate to the adjustment and control of the GIS installation indoor environment.
Patent CN207488762U discloses an environmental monitoring system for installation and maintenance of GIS, which effectively monitors the installation environment through monitoring sensors equipped inside and outside the GIS dust-proof room. The monitoring system comprises a dust degree monitor, a temperature and humidity sensor and a monitoring display device. The GIS monitoring system regulates and controls the indoor environment through monitoring information, but the invention does not provide required environment control equipment and corresponding control logic.
The invention provides an environment control system of a GIS dust-proof room, aiming at improving the environment quality in the installation process of GIS equipment. Firstly, a local closed GIS dustproof chamber is established on a construction site, and an environment monitoring device and a regulating device are arranged in the dustproof chamber. And then, the environment monitoring device detects the current environmental state of the dust-proof room in real time, and the regulation and control device effectively controls the cleanliness, temperature and humidity of the GIS equipment installation environment.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a GIS dust-proof room environment control system and a method thereof.
In order to achieve the above object, the present invention provides a method for controlling an environment of a GIS clean room, comprising:
detecting the cleanliness in the GIS dustproof chamber in real time, and if the detected cleanliness is lower than a set cleanliness standard value, increasing the air intake and the air exhaust volume in the GIS dustproof chamber;
detecting the micro-positive pressure in the GIS dustproof chamber in real time, judging whether the micro-positive pressure is formed in the GIS dustproof chamber, and if the micro-positive pressure is formed, increasing the air inlet in the GIS dustproof chamber and reducing the air exhaust volume in the GIS dustproof chamber;
detecting the temperature in the GIS dustproof chamber in real time, heating the GIS dustproof chamber if the detected temperature is lower than a set temperature minimum threshold, and cooling the GIS dustproof chamber if the detected temperature is higher than a set temperature maximum threshold;
and detecting the humidity in the GIS dustproof chamber in real time, dehumidifying the GIS dustproof chamber if the humidity is higher than a set highest humidity threshold, and closing the dehumidification if the humidity is lower than a set lowest humidity threshold.
Preferentially, setting a priority order, wherein the smaller the priority, the execution is preferentially performed, and the method comprises the following steps:
the priority is one: the cleanliness in the GIS dustproof chamber is detected,
and the priority is two: detecting the micro-positive pressure in the GIS dustproof chamber,
the priority is three: the temperature in the GIS dustproof chamber is detected,
the priority is four: and detecting the humidity in the GIS dustproof chamber.
Preferably, the cleanliness standard values set are:
carrying out the high-speed cultivation on the granules with the diameter more than or equal to 0.5 mu m and the concentration less than or equal to 35200000 pc/m;
carrying out the heavy planting with the particle diameter being more than or equal to 1.0 mu m and the particle concentration being less than or equal to 8320000 pc/m;
the diameter of the particles is more than or equal to 5.0 mu m, and the concentration of the particles is required to be less than or equal to 293000pc/m for carrying out the heavy cultivation.
Preferably, the temperature minimum threshold is set at 18 ℃ and the temperature maximum threshold is set at 28 ℃.
Preferably, the maximum humidity threshold is 70% RH and the minimum humidity threshold is 60% RH.
The method comprises a main controller, an environment monitoring device for monitoring the cleanliness, temperature and humidity of the GIS dustproof chamber and an environment regulating device for regulating the cleanliness, temperature and humidity of the GIS dustproof chamber, wherein the environment monitoring device and the environment regulating device are installed in the GIS dustproof chamber, and the main controller is electrically connected with the environment monitoring device and the environment regulating device.
Preferentially, the environment monitoring device is including the laser formula dust monitoring sensor who is used for monitoring the interior cleanliness factor of GIS dust-proof chamber, a temperature detect probe for monitoring the interior temperature of GIS dust-proof chamber, a humidity monitor sensor for monitoring the interior humidity of GIS dust-proof chamber and a baroceptor that is used for monitoring the interior pressure of little malleation of GIS dust-proof chamber, laser formula dust monitoring sensor, the temperature detect probe, humidity monitor sensor and baroceptor are all installed in the GIS dust-proof chamber, laser formula dust monitoring sensor is connected to main control unit electricity, the temperature detect probe, humidity monitor sensor and baroceptor.
Preferably, the environment control device comprises a cleanliness regulator, a temperature regulator and a humidity regulator, and the main controller is electrically connected with the cleanliness regulator, the temperature regulator and the humidity regulator.
Preferably, the cleanliness regulator includes a fresh air system and an exhaust system.
Preferably, the humidity regulator comprises a dehumidifier.
The invention achieves the following beneficial effects:
the invention is suitable for environmental control in the installation and maintenance process of GIS equipment, and is particularly suitable for adjusting and controlling the cleanliness, the temperature and the humidity in a GIS dustproof chamber. The invention establishes a closed GIS dustproof chamber on a construction site, and an environment monitoring device and an environment regulating device are arranged in the GIS dustproof chamber. Then, the environment monitoring device detects the current environment state of the GIS dustproof room in real time, and the environment regulating device effectively controls the cleanliness, temperature and humidity of the GIS equipment installation environment;
the GIS equipment installation maintenance process needs to effectively control the installation environment, and an indoor environment state comprising cleanliness, temperature and humidity is acquired through an environment monitoring device installed in a GIS dustproof chamber. And then according to the requirements of GIS equipment installation specifications on various environmental parameters, the environment regulating device controls each environment regulating device to regulate and control the indoor environment state, so that the indoor cleanliness reaches a million level, the indoor temperature is controlled to be 20 ℃ plus or minus 8 ℃, and the indoor humidity is less than or equal to 80% RH.
Drawings
FIG. 1 is a schematic diagram of the present invention;
FIG. 2 is a flow chart of the method of the present invention;
FIG. 3 is a schematic block diagram of cleanliness closed-loop control in accordance with the present invention;
fig. 4 is a schematic block diagram of closed loop control of temperature regulation in the present invention.
Detailed Description
The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
A GIS dustproof room environment control method comprises the following steps:
detecting the cleanliness in the GIS dustproof chamber in real time, and if the detected cleanliness is lower than a set cleanliness standard value, increasing the air intake and the air exhaust volume in the GIS dustproof chamber;
detecting the micro-positive pressure in the GIS dustproof chamber in real time, judging whether the micro-positive pressure is formed in the GIS dustproof chamber, and if the micro-positive pressure is formed, increasing the air inlet in the GIS dustproof chamber and reducing the air exhaust volume in the GIS dustproof chamber;
detecting the temperature in the GIS dustproof chamber in real time, heating the GIS dustproof chamber if the detected temperature is lower than a set temperature minimum threshold, and cooling the GIS dustproof chamber if the detected temperature is higher than a set temperature maximum threshold;
and detecting the humidity in the GIS dustproof chamber in real time, dehumidifying the GIS dustproof chamber if the humidity is higher than a set highest humidity threshold, and closing the dehumidification if the humidity is lower than a set lowest humidity threshold.
Further, in this embodiment, setting a priority order, and executing the priority order with priority smaller includes:
the priority is one: the cleanliness in the GIS dustproof chamber is detected,
and the priority is two: detecting the micro-positive pressure in the GIS dustproof chamber,
the priority is three: the temperature in the GIS dustproof chamber is detected,
the priority is four: and detecting the humidity in the GIS dustproof chamber.
Further, in this embodiment, the set standard value of cleanliness is:
carrying out the high-speed cultivation on the granules with the diameter more than or equal to 0.5 mu m and the concentration less than or equal to 35200000 pc/m;
carrying out the heavy planting with the particle diameter being more than or equal to 1.0 mu m and the particle concentration being less than or equal to 8320000 pc/m;
the diameter of the particles is more than or equal to 5.0 mu m, and the concentration of the particles is required to be less than or equal to 293000pc/m for carrying out the heavy cultivation.
Further, in this embodiment, the set temperature minimum threshold is 18 ℃ and the set temperature maximum threshold is 28 ℃.
Further, in this embodiment, the humidity maximum threshold is 70% RH, and the humidity minimum threshold is 60% RH.
The method comprises a main controller, an environment monitoring device for monitoring the cleanliness, temperature and humidity of the GIS dustproof chamber and an environment regulating device for regulating the cleanliness, temperature and humidity of the GIS dustproof chamber, wherein the environment monitoring device and the environment regulating device are installed in the GIS dustproof chamber, and the main controller is electrically connected with the environment monitoring device and the environment regulating device.
Further, in this embodiment, environment monitoring device is including the laser type dust monitoring sensor who is used for monitoring the interior cleanliness factor of GIS dust-proof chamber, a temperature detect probe for monitoring the interior temperature of GIS dust-proof chamber, a humidity monitor sensor for monitoring the interior humidity of GIS dust-proof chamber and a baroceptor that is used for monitoring the interior pressure of little malleation of GIS dust-proof chamber, laser type dust monitoring sensor, a temperature detect probe, humidity monitor sensor and baroceptor are all installed in the GIS dust-proof chamber, laser type dust monitoring sensor is connected to main control unit electricity, a temperature detect probe, humidity monitor sensor and baroceptor.
Further, in this embodiment, the environment regulation and control device includes cleanliness factor regulator, temperature regulator and humidity controller, and cleanliness factor regulator, temperature regulator and humidity controller are connected to main control unit electricity.
Further, in this embodiment, the cleanliness regulator includes a fresh air system and an exhaust system, the fresh air system may be a dustproof blower unit in the prior art, the exhaust system may be an exhaust device such as an air pump, and the temperature regulator may be a heating machine in the prior art, such as an air conditioner.
Further, in this embodiment, the humidity regulator includes a dehumidifier.
GIS clean room is the container, and main control unit is control processor, and main control unit, laser formula dust monitoring sensor, temperature detect probe, humidity monitoring sensor, baroceptor, new trend system, exhaust system and the above-mentioned part of humidity controller model that can adopt in prior art are many, and suitable model can be selected for use according to actual demand to technical staff in the field, and this embodiment is no longer one by one for the example.
The indoor temperature detection is carried out by installing a temperature detection probe in the dustproof chamber; a humidity monitoring sensor is arranged in the dustproof chamber and used for monitoring indoor humidity; monitoring the dust concentration of three grades of indoor particle size (more than or equal to 0.5 mu m, more than or equal to 1 mu m and more than or equal to 5 mu m) by adopting a laser type dust monitoring sensor, and monitoring indoor dust and cleanliness; monitoring the atmospheric pressure in the dustproof chamber by installing an air pressure sensor in the dustproof chamber; the temperature regulator adopts an industrial air conditioner to regulate and control the indoor environment temperature; and the indoor cleanliness is controlled by adopting a fresh air and exhaust system. The fresh air system is introduced with external clean air to form an indoor wind field for indoor air circulation, and the exhaust system exhausts indoor dust. The humidity regulator adopts a dehumidifier to regulate and control the indoor humidity; and the main controller is used for receiving the monitoring signals of the sensors and carrying out indoor environment monitoring and cooperative control on the environment regulation and control device.
The GIS dust-proof room environment control system can monitor indoor environment parameters in real time, and dynamically regulate and control each environment adjusting device to ensure that the environment in the dust-proof room meets the installation specification of GIS devices. The environment control system controls logic as shown in figure 2 according to different requirements of the installation process on environment parameters. The GIS equipment installation process has higher requirement on air cleanliness, and secondly, the GIS equipment installation process has wider acceptable range of indoor humidity due to indoor temperature. Therefore, according to the requirements of the installation process on various environmental parameters, the control strategy has the highest priority for regulating and controlling the air cleanliness, and the main controller firstly regulates and controls the cleanliness, secondly regulates and controls the indoor temperature and finally regulates the indoor humidity in each control period.
1, GIS dust-proof room cleanliness regulation and control
According to the requirement on air cleanliness of a dustproof room in the GIS equipment installation process, the air cleanliness of the dustproof room is millions (the speed of the tope cultivation is more than or equal to 0.5 mu m and less than or equal to 35200000pc/m, the speed of the tope cultivation is more than or equal to 1.0 mu m and less than or equal to 8320000pc/m, and the speed of the tope cultivation is more than or equal to 5.0 mu m and less than or equal to 293000 pc/m). The priority that cleanliness factor regulated and control in the dust-proof chamber is set as the highest in this control system, whether the interior cleanliness factor of priority monitoring dust-proof chamber satisfies the environmental standard when control strategy is carried out. When the environment cleanliness is lower than a set cleanliness standard value, the control strategy adjusts the fresh air and the exhaust system, increases the air intake and exhaust volume in the dustproof chamber, enhances the air circulation air field, and discharges dust through the exhaust system to improve the indoor cleanliness. And the cleanliness regulation adopts a PID control strategy in the cleanliness regulation and control, and the air volume of the fresh air and the air exhaust system is synchronously regulated.
And in the cleanliness regulating and controlling process, indoor air pressure is synchronously regulated. In the GIS dust removal assembly process, in order to avoid dust in an external construction site from entering a dust-proof chamber, the environment control system needs to regulate and control the air volume of a fresh air system and an exhaust system in real time, and the air inlet volume is guaranteed to be larger than the air volume so that a micro-positive pressure environment is formed in the dust-proof chamber. The micro-positive pressure regulation adopts a double-closed-loop regulation strategy, an atmospheric pressure regulation ring is arranged in the cleanliness regulation process, the air quantity of a fresh air and exhaust system is finely regulated according to indoor air pressure, the indoor micro-positive pressure environment is guaranteed, and fig. 3 is a cleanliness double-closed-loop control block diagram.
2, GIS clean room temperature regulation
After the indoor cleanliness and the micro-positive pressure regulation are finished, the environment control system regulates the indoor temperature. In the installation process of GIS equipment, the indoor environment temperature needs to be controlled at 20 +/-8 ℃. The environment control system takes 20 ℃ as an environment temperature control target and adjusts the indoor temperature through a temperature regulator. When the temperature value is higher than 28 ℃, the environment controller sends an adjusting instruction to enhance the refrigerating intensity or reduce the heating intensity of the temperature regulator and reduce the indoor temperature. When the temperature is lower than 18 ℃, the environment controller sends a temperature adjusting instruction, and the temperature adjuster reduces the cooling intensity or increases the heating intensity to increase the indoor temperature.
The temperature environment in the dustproof room can be simplified into a first-order large inertia hysteresis model, the control requirement can be met by controlling the temperature through the PI controller, and a control block diagram is shown in FIG. 4.
3, GIS dust-proof room humidity regulation and control
And finally, the environment control system regulates and controls the indoor humidity. According to GIS installation specifications, the environmental humidity in the assembly process is less than or equal to 80% RH.
The requirement on the control precision of the humidity of the installation environment in the GIS installation and maintenance process is loose, and a bang-bang controller is adopted to control the indoor humidity. And when the indoor humidity is higher than 70% RH, entering an early warning interval, and starting a dehumidifier to carry out humidity at rated power. And when the indoor humidity is lower than 60% RH, closing the dehumidifier and controlling the indoor humidity to be in a range of 60% -70% RH.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A GIS dustproof room environment control method is characterized by comprising the following steps:
detecting the cleanliness in the GIS dustproof chamber in real time, and if the detected cleanliness is lower than a set cleanliness standard value, increasing the air intake and the air exhaust volume in the GIS dustproof chamber;
detecting the micro-positive pressure in the GIS dustproof chamber in real time, judging whether the micro-positive pressure is formed in the GIS dustproof chamber, and if the micro-positive pressure is formed, increasing the air inlet in the GIS dustproof chamber and reducing the air exhaust volume in the GIS dustproof chamber;
detecting the temperature in the GIS dustproof chamber in real time, heating the GIS dustproof chamber if the detected temperature is lower than a set temperature minimum threshold, and cooling the GIS dustproof chamber if the detected temperature is higher than a set temperature maximum threshold;
and detecting the humidity in the GIS dustproof chamber in real time, dehumidifying the GIS dustproof chamber if the humidity is higher than a set highest humidity threshold, and closing the dehumidification if the humidity is lower than a set lowest humidity threshold.
2. The GIS clean room environment control method of claim 1,
setting a priority order, wherein the smaller the priority is, the execution is performed preferentially, and the method comprises the following steps:
the priority is one: the cleanliness in the GIS dustproof chamber is detected,
and the priority is two: detecting the micro-positive pressure in the GIS dustproof chamber,
the priority is three: the temperature in the GIS dustproof chamber is detected,
the priority is four: and detecting the humidity in the GIS dustproof chamber.
3. The GIS clean room environment control method of claim 1,
the set standard value of cleanliness is as follows:
carrying out the high-speed cultivation on the granules with the diameter more than or equal to 0.5 mu m and the concentration less than or equal to 35200000 pc/m;
carrying out the heavy planting with the particle diameter being more than or equal to 1.0 mu m and the particle concentration being less than or equal to 8320000 pc/m;
the diameter of the particles is more than or equal to 5.0 mu m, and the concentration of the particles is required to be less than or equal to 293000pc/m for carrying out the heavy cultivation.
4. The GIS clean room environment control method of claim 1,
the temperature minimum threshold was set at 18 ℃ and the temperature maximum threshold was set at 28 ℃.
5. The GIS clean room environment control method of claim 1,
the humidity maximum threshold is 70% RH and the humidity minimum threshold is 60% RH.
6. A GIS clean room environmental control system, characterized in that, using the method of claims 1-2, comprising a main controller, an environmental monitoring device for monitoring cleanliness, temperature and humidity in the GIS clean room, and an environmental regulation device for regulating cleanliness, temperature and humidity in the GIS clean room, wherein the environmental monitoring device and the environmental regulation device are installed in the GIS clean room, and the main controller electrically connects the environmental monitoring device and the environmental regulation device.
7. The GIS dustproof room environment control system according to claim 6, wherein the environment monitoring device comprises a laser type dust monitoring sensor for monitoring cleanliness in the GIS dustproof room, a temperature detection probe for monitoring temperature in the GIS dustproof room, a humidity monitoring sensor for monitoring humidity in the GIS dustproof room and an air pressure sensor for monitoring micro positive pressure in the GIS dustproof room, the laser type dust monitoring sensor, the temperature detection probe, the humidity monitoring sensor and the air pressure sensor are all installed in the GIS dustproof room, and the main controller is electrically connected with the laser type dust monitoring sensor, the temperature detection probe, the humidity monitoring sensor and the air pressure sensor.
8. The GIS clean room environment control system of claim 6, wherein the environment control device comprises a cleanliness regulator, a temperature regulator and a humidity regulator, and the main controller is electrically connected with the cleanliness regulator, the temperature regulator and the humidity regulator.
9. The GIS clean room environmental control system of claim 6,
the cleanliness regulator comprises a fresh air system and an exhaust system.
10. The GIS clean room environmental control system of claim 6,
the humidity regulator includes a dehumidifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110667273.1A CN113377142A (en) | 2021-06-16 | 2021-06-16 | GIS dust-proof room environment control system and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110667273.1A CN113377142A (en) | 2021-06-16 | 2021-06-16 | GIS dust-proof room environment control system and method thereof |
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| CN113377142A true CN113377142A (en) | 2021-09-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105846329A (en) * | 2016-03-22 | 2016-08-10 | 国网山东省电力公司淄博供电公司 | Substation GIS installation dustless construction method |
| CN107946995A (en) * | 2017-12-05 | 2018-04-20 | 国家电网公司 | A kind of dustproof room installed and safeguarded for GIS |
| CN107943175A (en) * | 2017-12-14 | 2018-04-20 | 广州供电局有限公司 | GIS installation environment managing and control systems |
| CN207559395U (en) * | 2017-12-05 | 2018-06-29 | 国家电网公司 | A kind of dustproof room installed and safeguarded for GIS |
| CN110676734A (en) * | 2019-10-14 | 2020-01-10 | 国网湖北省电力有限公司神农架供电公司 | GIS (gas insulated switchgear) field construction protection system of transformer substation |
| CN112947652A (en) * | 2021-03-30 | 2021-06-11 | 国网浙江省电力有限公司宁波供电公司 | GIS overhauls and removes dustless workshop |
-
2021
- 2021-06-16 CN CN202110667273.1A patent/CN113377142A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846329A (en) * | 2016-03-22 | 2016-08-10 | 国网山东省电力公司淄博供电公司 | Substation GIS installation dustless construction method |
| CN107946995A (en) * | 2017-12-05 | 2018-04-20 | 国家电网公司 | A kind of dustproof room installed and safeguarded for GIS |
| CN207559395U (en) * | 2017-12-05 | 2018-06-29 | 国家电网公司 | A kind of dustproof room installed and safeguarded for GIS |
| CN107943175A (en) * | 2017-12-14 | 2018-04-20 | 广州供电局有限公司 | GIS installation environment managing and control systems |
| CN110676734A (en) * | 2019-10-14 | 2020-01-10 | 国网湖北省电力有限公司神农架供电公司 | GIS (gas insulated switchgear) field construction protection system of transformer substation |
| CN112947652A (en) * | 2021-03-30 | 2021-06-11 | 国网浙江省电力有限公司宁波供电公司 | GIS overhauls and removes dustless workshop |
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