CN110401126B - Secondary moisture-removing box for GIS current transformer of transformer substation - Google Patents
Secondary moisture-removing box for GIS current transformer of transformer substation Download PDFInfo
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- CN110401126B CN110401126B CN201910770887.5A CN201910770887A CN110401126B CN 110401126 B CN110401126 B CN 110401126B CN 201910770887 A CN201910770887 A CN 201910770887A CN 110401126 B CN110401126 B CN 110401126B
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- increasing box
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Ventilation (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a secondary moisture-removing box of a GIS current transformer of a transformer substation, which comprises a capacity-increasing box capable of being hung on the bottom surface of a CT junction box, wherein the capacity-increasing box is of a box body structure with an opening on the top surface and a capacity-increasing box door on the front surface, a horizontally arranged flow guide partition plate is arranged in the capacity-increasing box, two ends of the flow guide partition plate are respectively arranged on two side plates of the capacity-increasing box, the flow guide partition plate divides the inner space of the capacity-increasing box into an upper space and a lower space, and two sides of the flow guide partition plate are respectively and correspondingly arranged with the capacity-increasing box door and a back plate of the capacity-increasing box at intervals; the air guide partition plate is provided with an air guide fan which is arranged upwards in the air direction, and an exhaust fan which is arranged outwards in the air direction is arranged on a side plate of the capacity increasing box at a position corresponding to the lower space. The method is suitable for GIS equipment of the transformer substation.
Description
Technical Field
The invention relates to the field of power systems, in particular to a secondary moisture removal box of a GIS current transformer of a transformer substation.
Background
With the rapid development of the technology of high-voltage power equipment in China, GIS equipment is widely applied to a high-voltage power system, but the GIS equipment has the following problems in actual use:
because the sinking type CT junction box of the GIS equipment is generally provided with the integrally welded metal cable inlet pipe for wiring, the integrally welded metal cable inlet pipe can bring moisture in a cable trench into the GIS sinking type CT junction box in a large amount through a chimney effect. After a long time, the moisture is easy to condense and even accumulate in the GIS sinking type CT junction box, so that the damage such as insulation reduction, binding post short circuit and the like can be caused to the CT secondary circuit.
At present, in order to solve the moisture problem in the GIS submerged CT junction box, a physical means of moisture removal agent moisture removal is generally adopted, specifically, the bottom plate of the CT junction box is detached firstly, then the moisture removal agent is placed on the bottom plate of the CT junction box, and finally the bottom plate of the CT junction box with the moisture removal agent is reset and installed. Although the moisture-removing means can play a role in removing moisture, the service life of the moisture-removing agent is generally only about 3 days, so that the moisture-removing requirement under the condition of large tidal volume on site is difficult to meet.
Disclosure of Invention
The invention aims to overcome the defects of the background technology and provides a secondary moisture-removing box of a GIS current transformer of a transformer substation.
In order to achieve the above purpose, the secondary moisture-removing box of the GIS current transformer of the transformer substation comprises a capacity-increasing box which can be hung on the bottom surface of a CT junction box, wherein the capacity-increasing box is of a box body structure with an opening on the top surface and a capacity-increasing box door on the front surface, a horizontally arranged flow guide partition plate is arranged in the capacity-increasing box, two ends of the flow guide partition plate are respectively arranged on two side plates of the capacity-increasing box, the flow guide partition plate divides the inner space of the capacity-increasing box into an upper space and a lower space, and two sides of the flow guide partition plate are respectively arranged at intervals with the capacity-increasing box door and a back plate of the capacity-increasing box correspondingly; the air guide partition plate is provided with an air guide fan which is arranged upwards in the air direction, and an exhaust fan which is arranged outwards in the air direction is arranged on a side plate of the capacity increasing box at a position corresponding to the lower space.
Through tearing open the bottom plate of formula CT terminal box down earlier, then hoist and mount the volume-increasing box on the bottom surface of formula CT terminal box down, the water conservancy diversion fan of rethread volume-increasing incasement upwards blows dry air to the CT terminal box from the middle part of volume-increasing box, and dry air is blocked the back and is bounced back to both sides and form the circulation to the CT terminal box top, simultaneously, and dry air can carry a large amount of moisture downflow in the CT terminal box, and these moisture can be outwards discharged by the exhaust fan at last to the damp-dispelling purpose has been reached, and this damp-dispelling case damp-dispelling is effectual, simple structure, convenient to use and with low costs.
In the above scheme, the side plate of the capacity-increasing box corresponding to the exhaust fan is provided with an exhaust pipe communicated with the exhaust fan.
In the above scheme, the air outlet end of the exhaust pipe is arranged downwards. By arranging the outlet end of the exhaust duct downwards, this is advantageous for the drainage of moisture on the one hand and prevents rainwater and dust from falling into the exhaust duct on the other hand.
In the above scheme, an exhaust check valve is arranged in the exhaust pipe. The added exhaust check valve can prevent rainwater and dust from entering the capacity-increasing box through the exhaust pipe.
In the above scheme, the air outlet end of the exhaust pipe is provided with an exhaust stainless steel net. The additionally arranged exhaust stainless steel net can prevent insects from entering the exhaust pipe and the capacity-increasing box.
In the above scheme, an air inlet is formed in a position, corresponding to the upper space, on a side plate of the capacity-increasing box opposite to the exhaust fan. The added air inlet can supplement the air discharged by the exhaust fan, thereby maintaining the air pressure in the capacity-increasing box.
In the above scheme, the side plate of the capacity-increasing box corresponding to the air inlet is provided with an air inlet pipe communicated with the air inlet.
In the scheme, the air inlet end of the air inlet pipe is arranged downwards. By arranging the air inlet end of the air inlet pipe downwards, rainwater and dust can be prevented from falling into the air inlet pipe.
In the scheme, an air inlet check valve is arranged in the air inlet pipe. The added air inlet check valve can prevent rainwater and dust from entering the capacity-increasing box through the air inlet pipe. When the air in the volume-increasing box is insufficient to generate negative pressure, the air inlet check valve can be automatically opened under the action of atmospheric pressure, and after the air is supplemented, the air inlet check valve can be automatically closed.
In the scheme, an air inlet stainless steel net is arranged at the air inlet end of the air inlet pipe. The additionally arranged air inlet stainless steel net can prevent insects from entering the air inlet pipe and the capacity-increasing box.
In the above scheme, a guide baffle is arranged at a position on the guide baffle corresponding to the air inlet, and the guide baffle is arranged at a position between the air inlet and the guide fan. The added guide baffle can prevent the air inlet check valve from being excessively opened, can guide and centralize the air flow generated by the guide fan, and can prevent the air flow entering from the air inlet check valve from affecting the air flow generated by the guide fan.
In the above scheme, the guide baffle is arranged in parallel with the side plate of the capacity-increasing box.
In the above scheme, the top surface opening part of the capacity-increasing box is provided with an outward flanging, and the capacity-increasing box is hoisted on the bottom surface of the CT junction box through the flanging. The added flanging facilitates the installation of the capacity-increasing box.
The technical scheme provided by the invention has the beneficial effects that:
through tearing open the bottom plate of formula CT terminal box down earlier, then hoist and mount the volume-increasing box on the bottom surface of formula CT terminal box down, the water conservancy diversion fan of rethread volume-increasing incasement upwards blows dry air to the CT terminal box from the middle part of volume-increasing box, and dry air is blocked the back and is bounced back to both sides and form the circulation to the CT terminal box top, simultaneously, and dry air can carry a large amount of moisture downflow in the CT terminal box, and these moisture can be outwards discharged by the exhaust fan at last to the damp-dispelling purpose has been reached, and this damp-dispelling case damp-dispelling is effectual, simple structure, convenient to use and with low costs.
Drawings
FIG. 1 is a schematic view of the structure of a moisture expeller with a door opened;
FIG. 2 is another view angle schematic of FIG. 1;
FIG. 3 is a schematic diagram of the explosive structure of FIG. 2;
FIG. 4 is a schematic view of the front view of the moisture expeller;
FIG. 5 is a left side schematic view of the moisture expeller;
FIG. 6 is a right side schematic view of the moisture expeller;
FIG. 7 is a schematic top view of the moisture expeller;
FIG. 8 is a schematic view of the bottom construction of the moisture expeller;
FIG. 9 is a schematic view of the installation of a snap fastener and insulating panel;
FIG. 10 is a schematic view of the moisture expeller with the ventilation box and snap fastener removed;
FIG. 11 is another view angle schematic of FIG. 10;
FIG. 12 is a schematic view of the structure of FIG. 10 from another perspective;
FIG. 13 is a schematic view of the explosive structure of FIG. 12;
FIG. 14 is a schematic view of the front view of the moisture expeller with the ventilation box and snap fastener removed;
FIG. 15 is a schematic left-hand view of the moisture expeller with the ventilation box and snap fastener removed;
FIG. 16 is a schematic top view of the moisture expeller with the venting box and snap fastener removed;
FIG. 17 is a schematic view of the bottom view of the moisture expeller with the venting box and snap fastener removed;
FIG. 18 is a schematic view of the structure of the venting box;
FIG. 19 is a schematic view of the explosive structure of FIG. 18;
FIG. 20 is a schematic view of the front view of the venting cartridge;
FIG. 21 is a schematic view of the left-hand construction of the venting cartridge;
FIG. 22 is a schematic top view of a venting box;
fig. 23 is a schematic circuit diagram of the moisture expeller.
In the figure, a capacity-increasing box 1, a capacity-increasing box door 1a, a backboard 1b, an outward flange 1c, a flow guide baffle plate 2, a flow guide fan 3, an exhaust fan 4, an exhaust pipe 5, an exhaust check valve 6, an exhaust stainless steel net 7, an air inlet pipe 8, an air inlet check valve 9, an air inlet stainless steel net 10, a guide baffle plate 11, a capacity-increasing box controller 12, an insulating board 13, an air-permeable box 14, an air-permeable box body 14a, an air-permeable box cover 14b, a spring buckle 14c, a snap-on male surface 15a, a snap-on female surface 15b, a compression frame 16, a solar panel 17, a battery box 18, a battery box door 18a, a heat dissipation grid 18b, an inward flange 18c, a storage battery 19, a solar panel mounting pipe 20, a universal joint 21 and a support reinforcing rod 22.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
Example 1:
the secondary moisture-removing box of the GIS current transformer of the transformer substation shown in fig. 11 comprises a capacity-increasing box 1 which can be hung on the bottom surface of a CT junction box, wherein the capacity-increasing box 1 is of a box body structure with an opening on the top surface and a capacity-increasing box door 1a on the front surface, a horizontally arranged flow guide partition plate 2 is arranged in the capacity-increasing box 1, two ends of the flow guide partition plate 2 are respectively arranged on two side plates of the capacity-increasing box 1, the flow guide partition plate 2 divides the inner space of the capacity-increasing box 1 into an upper space and a lower space, and two sides of the flow guide partition plate 2 are respectively and correspondingly arranged at intervals with the capacity-increasing box door 1a and a backboard 1b of the capacity-increasing box 1; the air guide partition plate 2 is provided with an air guide fan 3 which is arranged upwards in the air direction, and an exhaust fan 4 which is arranged outwards in the air direction is arranged at a position on one side plate of the capacity-increasing box 1 corresponding to the lower space. Through tearing open the bottom plate of formula CT terminal box down earlier, then hoist and mount the compatibilizer case 1 on the bottom surface of formula CT terminal box down, the water conservancy diversion fan 3 in the rethread compatibilizer case 1 upwards blows dry air to the CT terminal box from the middle part of compatibilizer case 1, dry air receives CT terminal box top to rebound back to both sides and forms the circulation after blockking, simultaneously, dry air can carry a large amount of moisture downflow in the CT terminal box, finally these moisture can be outwards discharged by exhaust fan 4 to the damp-dispelling purpose has been reached, this damp-dispelling case damp-dispelling is effectual, simple structure, convenient to use and with low costs.
And an exhaust pipe 5 communicated with the exhaust fan 4 is arranged on a side plate of the capacity-increasing box 1 corresponding to the exhaust fan 4. The air outlet end of the exhaust pipe 5 is arranged downwards. By arranging the outlet end of the exhaust duct 5 downwards, this is advantageous for the drainage of moisture on the one hand and prevents rainwater and dust from falling into the exhaust duct 5 on the other hand. An exhaust check valve 6 is arranged in the exhaust pipe 5. The added exhaust check valve 6 can prevent rainwater and dust from entering the capacity-increasing box 1 through the exhaust pipe 5. An air exhaust stainless steel net 7 is arranged at the air outlet end of the air exhaust pipe 5. The additionally arranged exhaust stainless steel net 7 can prevent insects from entering the exhaust pipe 5 and the capacity-increasing box 1.
An air inlet is formed in a position, corresponding to the upper space, on a side plate of the capacity-increasing box 1 opposite to the exhaust fan 4. The added air inlet can supplement the air discharged by the exhaust fan 4, thereby maintaining the air pressure in the capacity-increasing box 1. An air inlet pipe 8 communicated with the air inlet is arranged on a side plate of the capacity-increasing box 1 corresponding to the air inlet. The air inlet end of the air inlet pipe 8 is arranged downwards. By arranging the air inlet end of the air inlet pipe 8 downward, rainwater and dust can be prevented from falling into the air inlet pipe 8. An air inlet check valve 9 is arranged in the air inlet pipe 8. The added air inlet check valve 9 can prevent rainwater and dust from entering the capacity-increasing box 1 through the air inlet pipe 8. When the air in the capacity-increasing box 1 is insufficient to generate negative pressure, the air inlet check valve 9 can be automatically opened under the action of atmospheric pressure, and after the air is supplemented, the air inlet check valve 9 can be automatically closed. An air inlet stainless steel net 10 is arranged at the air inlet end of the air inlet pipe 8. The additionally arranged air inlet stainless steel net 10 can prevent insects from entering the air inlet pipe 8 and the capacity-increasing box 1.
The guide baffle plate 2 is provided with a guide baffle plate 11 at a position corresponding to the air inlet, and the guide baffle plate 11 is arranged at a position between the air inlet and the guide fan 3. The added guide baffle 11 can prevent the air inlet check valve 9 from being excessively opened, can guide and centralize the air flow generated by the guide fan 3, and can prevent the air flow entering from the air inlet check valve 9 from affecting the air flow generated by the guide fan 3. The guide baffle 11 is arranged in parallel with the side plates of the capacity-increasing box 1.
The top surface opening part of the capacity-increasing box 1 is provided with an outward flanging 1c, and the capacity-increasing box 1 is hoisted on the bottom surface of the CT junction box through the flanging 1 c. The added flanging 1c facilitates the installation of the capacity-increasing box 1. The flow guide partition plate 2 is provided with a capacity-increasing box controller 12, and the capacity-increasing box controller 12 is respectively and electrically connected with the flow guide fan 3 and the exhaust fan 4. The added capacity-increasing box controller 12 can control the opening and closing of the diversion fan 3 and the exhaust fan 4 according to actual needs. An insulating board 13 is arranged on the inner surface of the capacity-increasing box 1. The added insulating board 13 can slow down the condensation of the air in the capacity-increasing box 1 caused by the change of the outside heat and cold, thereby playing a role in damp-proof.
According to the embodiment, the bottom plate of the sinking type CT junction box is removed firstly, then the capacity-increasing box 1 is hoisted on the bottom surface of the sinking type CT junction box, the dry air is blown upwards to the CT junction box from the middle part of the capacity-increasing box 1 through the guide fan 3 in the capacity-increasing box 1, the dry air is blocked by the top of the CT junction box and bounces back to two sides to form circulation, meanwhile, a large amount of moisture in the CT junction box can be carried by the dry air to flow downwards, and finally the moisture can be discharged outwards by the exhaust fan 4, so that the moisture-removing purpose is achieved.
Meanwhile, the air outlet end of the exhaust pipe 5 is downwards arranged, so that on one hand, the exhaust of moisture is facilitated, and on the other hand, rainwater and dust can be prevented from falling into the exhaust pipe 5; the added exhaust check valve 6 can prevent rainwater and dust from entering the capacity-increasing box 1 through the exhaust pipe 5; the additionally arranged exhaust stainless steel net 7 can prevent insects from entering the exhaust pipe 5 and the capacity-increasing box 1; the added air inlet can supplement the air discharged by the exhaust fan 4, so that the air pressure in the capacity-increasing box 1 is kept; by arranging the air inlet end of the air inlet pipe 8 downwards, rainwater and dust can be prevented from falling into the air inlet pipe 8; the added air inlet check valve 9 can prevent rainwater and dust from entering the capacity-increasing box 1 through the air inlet pipe 8, when the air in the capacity-increasing box 1 is insufficient to generate negative pressure, the air inlet check valve 9 can be automatically opened under the action of atmospheric pressure, and after the air is supplemented, the air inlet check valve 9 can be automatically closed; the additionally arranged air inlet stainless steel net 10 can prevent insects from entering the air inlet pipe 8 and the capacity-increasing box 1.
The added guide baffle 11 can prevent the air inlet check valve 9 from being excessively opened, can guide and centralize the air flow generated by the guide fan 3, and can prevent the air flow entering from the air inlet check valve 9 from affecting the air flow generated by the guide fan 3; the added flanging 1c is convenient for installing the capacity-increasing box 1; the additionally arranged capacity-increasing box controller 12 can control the opening and closing of the diversion fan 3 and the exhaust fan 4 according to actual needs; the added insulating board 13 can slow down the condensation of the air in the capacity-increasing box 1 caused by the change of the outside heat and cold, thereby playing a role in damp-proof.
Example 2:
the intelligent full-automatic outdoor moisture removing device of the GIS submerged CT junction box comprises a capacity increasing box 1 which can be hung on the bottom surface of the CT junction box, wherein the capacity increasing box 1 is of a box body structure with an opening top surface and a capacity increasing box door 1a on the front surface, a horizontally arranged flow guide partition plate 2 is arranged in the capacity increasing box 1, two ends of the flow guide partition plate 2 are respectively arranged on two side plates of the capacity increasing box 1, the flow guide partition plate 2 divides the inner space of the capacity increasing box 1 into an upper space and a lower space, and two sides of the flow guide partition plate 2 are respectively and correspondingly arranged at intervals with the capacity increasing box door 1a and a backboard 1b of the capacity increasing box 1; the air guide partition plate 2 is provided with an air guide fan 3 which is arranged upwards in the air direction, and an exhaust fan 4 which is arranged outwards in the air direction is arranged at a position on one side plate of the capacity-increasing box 1 corresponding to the lower space. Through tearing open the bottom plate of formula CT terminal box down earlier, then hoist and mount the compatibilizer case 1 on the bottom surface of formula CT terminal box down, the water conservancy diversion fan 3 in the rethread compatibilizer case 1 upwards blows dry air to the CT terminal box from the middle part of compatibilizer case 1, dry air receives CT terminal box top to rebound back to both sides and forms the circulation after blockking, simultaneously, dry air can carry a large amount of moisture in the CT terminal box to flow downwards, finally these moisture can be outwards discharged by exhaust fan 4 to the damp expelling purpose has been reached, and this damp expelling device damp expelling effect is good, simple structure, convenient to use and with low costs.
And an exhaust pipe 5 communicated with the exhaust fan 4 is arranged on a side plate of the capacity-increasing box 1 corresponding to the exhaust fan 4. The air outlet end of the exhaust pipe 5 is arranged downwards. By arranging the outlet end of the exhaust duct 5 downwards, this is advantageous for the drainage of moisture on the one hand and prevents rainwater and dust from falling into the exhaust duct 5 on the other hand. An exhaust check valve 6 is arranged in the exhaust pipe 5. The added exhaust check valve 6 can prevent rainwater and dust from entering the capacity-increasing box 1 through the exhaust pipe 5. An air exhaust stainless steel net 7 is arranged at the air outlet end of the air exhaust pipe 5. The additionally arranged exhaust stainless steel net 7 can prevent insects from entering the exhaust pipe 5 and the capacity-increasing box 1.
An air inlet is formed in a position, corresponding to the upper space, on a side plate of the capacity-increasing box 1 opposite to the exhaust fan 4. The added air inlet can supplement the air discharged by the exhaust fan 4, thereby maintaining the air pressure in the capacity-increasing box 1. An air inlet pipe 8 communicated with the air inlet is arranged on a side plate of the capacity-increasing box 1 corresponding to the air inlet. The air inlet end of the air inlet pipe 8 is arranged downwards. By arranging the air inlet end of the air inlet pipe 8 downward, rainwater and dust can be prevented from falling into the air inlet pipe 8. An air inlet check valve 9 is arranged in the air inlet pipe 8. The added air inlet check valve 9 can prevent rainwater and dust from entering the capacity-increasing box 1 through the air inlet pipe 8. When the air in the capacity-increasing box 1 is insufficient to generate negative pressure, the air inlet check valve 9 can be automatically opened under the action of atmospheric pressure, and after the air is supplemented, the air inlet check valve 9 can be automatically closed. An air inlet stainless steel net 10 is arranged at the air inlet end of the air inlet pipe 8. The additionally arranged air inlet stainless steel net 10 can prevent insects from entering the air inlet pipe 8 and the capacity-increasing box 1.
The guide baffle plate 2 is provided with a guide baffle plate 11 at a position corresponding to the air inlet, and the guide baffle plate 11 is arranged at a position between the air inlet and the guide fan 3. The added guide baffle 11 can prevent the air inlet check valve 9 from being excessively opened, can guide and centralize the air flow generated by the guide fan 3, and can prevent the air flow entering from the air inlet check valve 9 from affecting the air flow generated by the guide fan 3. The guide baffle 11 is arranged in parallel with the side plates of the capacity-increasing box 1.
The top surface opening part of the capacity-increasing box 1 is provided with an outward flanging 1c, and the capacity-increasing box 1 is hoisted on the bottom surface of the CT junction box through the flanging 1 c. The added flanging 1c facilitates the installation of the capacity-increasing box 1. The flow guide partition plate 2 is provided with a capacity-increasing box controller 12, and the capacity-increasing box controller 12 is respectively and electrically connected with the flow guide fan 3 and the exhaust fan 4. The added capacity-increasing box controller 12 can control the opening and closing of the diversion fan 3 and the exhaust fan 4 according to actual needs. The diversion fan 3, the exhaust fan 4 and the capacity-increasing box controller 12 can be used for supplying power to the capacity-increasing box 1 through on-site lead wires, or can be used for supplying power through batteries, etc.
An insulating board 13 is provided on the inner surface of the capacity-increasing box 1. The added insulating board 13 can slow down the condensation of the air in the capacity-increasing box 1 caused by the change of the outside heat and cold, thereby playing a role in damp-proof. The insulating board 13 may be an epoxy board. The heat insulation plate 13 is provided with a primary and secondary buckle primary surface 15b or a primary and secondary buckle primary surface 15a, respectively, and the heat insulation plate 13 is adhered with the primary and secondary buckle primary surface 15a and the primary and secondary buckle primary surface 15b through the mutual matching. The added ventilation box 14 can be filled with a moisture-removing agent, thereby further playing a role in removing moisture; meanwhile, the breathable box 14 is installed and fixed by adopting the snap fastener, so that the replacement of the moisture removing agent is facilitated. The insulation board 13 is laid on the inner surface of the capacity-increasing box 1, the primary and secondary buckle primary and secondary face 15b or the primary and secondary buckle male face 15a is laid on the insulation board 13, and the compression frame 16 compresses and fixes the primary and secondary buckle primary and secondary face 15b or the primary and secondary buckle male face 15a and the insulation board 13 on the inner surface of the capacity-increasing box 1. By adopting the pressing frame 16 to install the snap fastener and the insulating board 13, the installation is convenient, and the later maintenance is also convenient.
Above-mentioned ventilative box 14 includes ventilative box body 14a and ventilative lid 14b, ventilative box body 14a is the hexahedral structure of one side open-ended, ventilative box body 14 a's both ends face is square structure, ventilative lid 14 b's both ends are equipped with the spring buckle 14c that can the joint be in square structure on ventilative box body 14a both ends face respectively, ventilative lid 14b passes through the spring buckle 14c cartridge is in ventilative box body 14a is last, be equipped with on the lateral wall surface of ventilative box body 14a opposite with the opening the public face 15a of primary and secondary knot or primary and secondary knot face 15b. The ventilation box cover 14b is designed to be clamped on the ventilation box body 14a through the spring buckle 14c, so that the replacement of the moisture removing agent is facilitated. Spring buckles 14c are respectively arranged on two sides of the ventilation box cover 14 b. The spring buckles 14c are additionally arranged on the two sides of the ventilation box cover 14b, so that the ventilation box cover 14b can be clamped more tightly.
The male surface 15a of the snap fastener or the female surface 15b of the snap fastener is attached to the ventilation box body 14a by adhesion. The surface of the ventilation box body 14a, on which the male surface 15a of the snap fastener or the female surface 15b of the snap fastener is arranged, is a planar structure, the remaining surfaces of the ventilation box body 14a are all square structures, and the ventilation box cover 14b is also a square structure. The surface of the ventilation box body 14a, which is provided with the male surface 15a of the snap fastener or the female surface 15b of the snap fastener, is designed to be a plane structure, so that the male surface 15a of the snap fastener or the female surface 15b of the snap fastener is convenient to install; meanwhile, the remaining surfaces of the ventilation box body 14a are designed to be in a square grid structure, and the ventilation box cover 14b is also designed to be in a square grid structure, so that the contact area of the moisture-repellent agent and air can be increased, the moisture-repellent effect can be improved, and the weight of the ventilation box 14 can be reduced.
The aperture of the square lattice structure is smaller than the grain diameter of the moisture-removing agent. By designing the pore diameter of the square lattice structure to be smaller than the particle diameter of the moisture-repellent agent, the moisture-repellent agent can be prevented from leaking out. The breathable box 14 is filled with a moisture-removing agent. The moisture removing agent is spherical silica gel drying agent.
The outer wall of the capacity-increasing box 1 is provided with a solar panel 17, a battery box 18 is hung on the bottom surface of the capacity-increasing box 1, a solar controller electrically connected with the solar panel 17 is arranged in the battery box 18, a storage battery 19 electrically connected with the solar controller is also arranged in the battery box 18, and the storage battery 19 respectively supplies power for the diversion fan 3 and the exhaust fan 4. The added solar panel 17, the solar controller and the storage battery 19 can continuously supply power for the diversion fan 3 and the exhaust fan 4, so that the moisture-dispelling effect of the moisture-dispelling device is ensured; meanwhile, no extra power supply is needed, and the trouble of taking out the power wiring is reduced; moreover, the solar energy is more energy-saving and environment-friendly.
The solar panel 17 is mounted on the outer wall of the capacity-increasing box 1 through a solar panel mounting pipe 20. The solar panel 17 is installed and fixed by the solar panel installation pipe 20, thus facilitating wiring. The solar panel installation pipe 20 is horizontally arranged, one end of the solar panel installation pipe 20 is connected with the solar panel 17 through a universal joint 21, and the other end of the solar panel installation pipe 20 is fixedly installed on the outer wall of the capacity-increasing box 1. The added universal joint 21 facilitates the adjustment of the angle of the solar panel 17. And a supporting reinforcing rod 22 which is obliquely arranged is also arranged between the solar panel mounting pipe 20 and the outer wall of the capacity-increasing box 1. The added support reinforcing rods 22 improve the stability of the installation of the solar panel 17.
The battery box 18 has a box structure with an opening on the top surface and a battery box door 18a on the front surface, and a heat dissipation grille 18b is provided on the side wall of the battery box 18. The added heat radiation grille 18b can play a role in heat radiation. An inward flanging 18c is arranged at the opening of the top surface of the battery box 18, and the battery box 18 is hoisted on the bottom surface of the capacity-increasing box 1 through the inward flanging 18 c. The addition of the inner flange 18c facilitates the installation of the battery box 18. A sealing ring is arranged between the inner flanging 18c and the bottom surface of the capacity-increasing box 1. The added sealing ring can prevent rainwater and dust from entering the battery box 18. The solar panel 17 is mounted on the outer wall of the back panel 1b of the compatibilizer box 1. By mounting the solar panel 17 on the outer wall of the back plate 1b of the capacity-increasing box 1, interference of the solar panel 17 with the exhaust duct 5 and the air inlet duct 8 can be avoided. And wiring holes are formed in the positions, corresponding to the solar panel mounting pipes 20, on the back plate 1b of the capacity-increasing box 1. The bottom plate of the capacity-increasing box 1 is also provided with wiring holes.
The bottom plate of the capacity-increasing box 1 is provided with a humidity sensor, and the humidity sensor is electrically connected with the capacity-increasing box controller 12. The added humidity sensor is matched with the capacity-increasing box controller 12 to intelligently control the diversion fan 3 and the exhaust fan 4 to work according to the needs, namely when the humidity in the capacity-increasing box 1 reaches a preset value, the diversion fan 3 and the exhaust fan 4 only work, and when the humidity in the capacity-increasing box 1 is lower than the preset value, the diversion fan 3 and the exhaust fan 4 stop working, so that the service lives of the diversion fan 3 and the exhaust fan 4 are prolonged, and the capacity-increasing box is more energy-saving and environment-friendly. A communication module is arranged in the capacity-increasing box 1, and the communication module is electrically connected with the capacity-increasing box controller 12. The battery 19 also supplies power to the compatibilizer box controller 12, the humidity sensor, and the communication module, respectively. The communication module additionally arranged can realize the remote monitoring of the moisture expeller.
The remote monitoring integrated management terminal collects the humidity in each moisture expeller through the communication module and monitors in real time. The important purposes of analyzing historical data of the internal humidity change condition of the CT junction box, diagnosing communication faults of the humidity monitoring links of the CT junction boxes in real time, finding faults of the moisture removers in time and the like are respectively realized through the functions of humidity real-time monitoring and historical data storage, communication link state real-time diagnosis, humidity abnormal accumulation time threshold intelligent alarm and the like.
Specifically, "humidity real-time monitoring and historical data storage" function: the remote monitoring integrated management terminal collects real-time data of humidity of each measuring point and stores the data, and displays humidity change rules of corresponding measuring points in a historical data curve mode.
"communication link status real-time diagnostic" function: and the remote monitoring comprehensive management terminal performs communication test on the communication modules of all the measuring points at regular intervals, adopts two modes to perform simultaneous test, and finally performs intelligent diagnosis comprehensive alarm according to the test results of the first mode and the second mode. The method comprises the following steps:
in the first mode, a ping command is adopted to perform network IP test, if the IP address of the measuring point communication module cannot be ping, the remote monitoring integrated management terminal reports network IP address communication interruption aiming at the measuring point; and the second mode is to test whether the network has data or not by adopting a mode of 'monitoring the data message between the monitoring point and the remote monitoring integrated management terminal', if no data transmission exists, the remote monitoring integrated management terminal reports 'no data message transmission' aiming at the measuring point.
Intelligent diagnosis comprehensive alarm strategy:
and 1, when the alarm conditions of the first mode and the second mode are met at the same time, the remote monitoring integrated management terminal reports the data communication link interruption to the measurement point.
And 2, when the alarm condition of the first mode is not met and the alarm condition of the second mode is met, the remote monitoring integrated management terminal reports the measurement point of the fault of the data processing module.
Intelligent alarm function of humidity anomaly accumulation time threshold value: when the humidity of the measuring point is greater than the threshold value 1, setting a humidity threshold value, tracking, accumulating and calculating the abnormal humidity time of the measuring point, and when the accumulated time within 1 day is greater than the threshold value 2, reporting a 'moisture expeller fault' by the remote monitoring integrated management terminal aiming at the measuring point.
The threshold value 1 is 60% RH to 80% RH, and the threshold value 2 is 100 to 400 minutes. In a specific construction, the opening threshold values of the diversion fan 3 and the exhaust fan 4 can be set as follows: when the humidity is higher than 70% RH, the diversion fan 3 and the exhaust fan 4 are started; and the stop threshold values of the diversion fan 3 and the exhaust fan 4 are set as follows: when the humidity is less than 65% RH, the diversion fan 3 and the exhaust fan 4 are stopped. The purpose of opening and stopping the opening is to prevent the fan from being started frequently, thereby prolonging the service life of the fan and saving the storage electric quantity of the storage battery 19.
According to the embodiment, the bottom plate of the sinking type CT junction box is removed firstly, then the capacity-increasing box 1 is hoisted on the bottom surface of the sinking type CT junction box, the dry air is blown upwards to the CT junction box from the middle part of the capacity-increasing box 1 through the guide fan 3 in the capacity-increasing box 1, the dry air is blocked by the top of the CT junction box and bounces back to two sides to form circulation, meanwhile, a large amount of moisture in the CT junction box can be carried by the dry air to flow downwards, and finally the moisture can be discharged outwards by the exhaust fan 4, so that the moisture-removing purpose is achieved.
Meanwhile, the air outlet end of the exhaust pipe 5 is downwards arranged, so that on one hand, the exhaust of moisture is facilitated, and on the other hand, rainwater and dust can be prevented from falling into the exhaust pipe 5; the added exhaust check valve 6 can prevent rainwater and dust from entering the capacity-increasing box 1 through the exhaust pipe 5; the additionally arranged exhaust stainless steel net 7 can prevent insects from entering the exhaust pipe 5 and the capacity-increasing box 1; the added air inlet can supplement the air discharged by the exhaust fan 4, so that the air pressure in the capacity-increasing box 1 is kept; by arranging the air inlet end of the air inlet pipe 8 downwards, rainwater and dust can be prevented from falling into the air inlet pipe 8; the added air inlet check valve 9 can prevent rainwater and dust from entering the capacity-increasing box 1 through the air inlet pipe 8. When the air in the capacity-increasing box 1 is insufficient to generate negative pressure, the air inlet check valve 9 can be automatically opened under the action of atmospheric pressure, and after the air is supplemented, the air inlet check valve 9 can be automatically closed; the additionally arranged air inlet stainless steel net 10 can prevent insects from entering the air inlet pipe 8 and the capacity-increasing box 1.
The added guide baffle 11 can prevent the air inlet check valve 9 from being excessively opened, can guide and centralize the air flow generated by the guide fan 3, and can prevent the air flow entering from the air inlet check valve 9 from affecting the air flow generated by the guide fan 3; the added flanging 1c is convenient for installing the capacity-increasing box 1; the additionally arranged capacity-increasing box controller 12 can control the opening and closing of the diversion fan 3 and the exhaust fan 4 according to actual needs; the added insulating board 13 can slow down the condensation of the air in the capacity-increasing box 1 caused by the change of the outside heat and cold, thereby playing a role in damp-proof.
Furthermore, the added ventilation box 14 can be filled with a moisture-removing agent, thereby further playing a role in removing moisture; the ventilation box 14 is installed and fixed by adopting the snap fastener, so that the replacement of the moisture removing agent is convenient; the pressing frame 16 is adopted to install the snap fastener and the insulating board 13, so that the installation is convenient, and the later maintenance is also convenient; the ventilation box cover 14b is designed to be clamped on the ventilation box body 14a through the spring buckle 14c, so that the replacement of the moisture removing agent is facilitated; the spring buckles 14c are additionally arranged on the two sides of the ventilation box cover 14b respectively, so that the ventilation box cover 14b can be clamped more tightly; the surface of the ventilation box body 14a, which is provided with the male surface 15a of the snap fastener or the female surface 15b of the snap fastener, is designed to be a plane structure, so that the male surface 15a of the snap fastener or the female surface 15b of the snap fastener is convenient to install; meanwhile, the rest surfaces of the ventilation box body 14a are designed to be in a square grid structure, and the ventilation box cover 14b is also designed to be in a square grid structure, so that the contact area of the moisture-repellent agent and air can be increased, the moisture-repellent effect is improved, and the weight of the ventilation box 14 can be reduced; by designing the pore diameter of the square lattice structure to be smaller than the particle diameter of the moisture-repellent agent, the moisture-repellent agent can be prevented from leaking out.
Finally, the added solar panel 17, the solar controller and the storage battery 19 can continuously supply power for the diversion fan 3 and the exhaust fan 4, so that the moisture-dispelling effect of the moisture-dispelling device is ensured; the extra power supply is not needed, and the trouble of taking out the power wiring is reduced; the solar energy is more energy-saving and environment-friendly; the solar panel 17 is installed and fixed through the solar panel installation pipe 20, so that wiring is convenient; the added universal joint 21 facilitates the adjustment of the angle of the solar panel 17; the added supporting reinforcing rods 22 improve the installation stability of the solar panel 17; the added heat radiation grille 18b can play a role in heat radiation; the added inner flanging 18c facilitates the installation of the battery box 18; the added sealing ring can prevent rainwater and dust from entering the battery box 18; by mounting the solar panel 17 on the outer wall of the back plate 1b of the capacity-increasing box 1, interference between the solar panel 17 and the exhaust pipe 5 and the air inlet pipe 8 can be avoided; the added humidity sensor is matched with the capacity-increasing box controller 12 to intelligently control the diversion fan 3 and the exhaust fan 4 to work as required, namely when the humidity in the capacity-increasing box 1 reaches a preset value, the diversion fan 3 and the exhaust fan 4 work, and when the humidity in the capacity-increasing box 1 is lower than the preset value, the diversion fan 3 and the exhaust fan 4 stop working, so that the service lives of the diversion fan 3 and the exhaust fan 4 are prolonged, and the capacity-increasing box is more energy-saving and environment-friendly; the communication module additionally arranged can realize the remote monitoring of the moisture expeller.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (7)
1. The utility model provides a transformer substation GIS current transformer secondary drives damp case, its characterized in that includes can hoist and mount on CT terminal box bottom surface increase capacity case (1), increase capacity case (1) be the top surface opening and the front has the box structure of increase capacity case chamber door (1 a), increase capacity case (1) are equipped with water conservancy diversion baffle (2) of horizontal arrangement, install respectively on the both sides board of increase capacity case (1) at the both ends of water conservancy diversion baffle (2), water conservancy diversion baffle (2) will increase capacity case (1) inner space is divided into upper portion space and lower part space, just the both sides of water conservancy diversion baffle (2) correspond respectively with increase capacity case chamber door (1 a) and backplate (1 b) interval arrangement of increase capacity case (1);
the air guide partition plate (2) is provided with an air guide fan (3) which is arranged upwards in the air direction, and an exhaust fan (4) which is arranged outwards in the air direction is arranged at a position on one side plate of the capacity increasing box (1) corresponding to the lower space.
2. The secondary moisture-removing box of the substation GIS current transformer according to claim 1, wherein an exhaust pipe (5) communicated with the exhaust fan (4) is installed on a side plate of the capacity-increasing box (1) corresponding to the exhaust fan (4), an air outlet end of the exhaust pipe (5) is downwards arranged, an exhaust check valve (6) is arranged in the exhaust pipe (5), and an exhaust stainless steel net (7) is arranged at the air outlet end of the exhaust pipe (5).
3. The secondary moisture removal box of the substation GIS current transformer according to claim 1, wherein an air inlet is formed in a position, corresponding to the upper space, on a side plate of the capacity increasing box (1) opposite to the exhaust fan (4).
4. A transformer substation GIS current transformer secondary moisture removal box according to claim 3, characterized in that an air inlet pipe (8) communicated with the air inlet is installed on a side plate of the capacity increasing box (1) corresponding to the air inlet, the air inlet end of the air inlet pipe (8) is arranged downwards, an air inlet check valve (9) is arranged in the air inlet pipe (8), and an air inlet stainless steel net (10) is arranged at the air inlet end of the air inlet pipe (8).
5. A secondary moisture removal box for a transformer substation GIS current transformer according to claim 3, wherein a guide baffle (11) is arranged on the guide baffle (2) at a position corresponding to the air inlet, and the guide baffle (11) is arranged at a position between the air inlet and the guide fan (3).
6. The secondary moisture removal box of a transformer substation GIS current transformer according to claim 5, wherein the guide baffle (11) is arranged in parallel with a side plate of the capacity increasing box (1).
7. The secondary moisture removal box of the substation GIS current transformer according to claim 1, wherein an outward flanging (1 c) is arranged at the opening of the top surface of the capacity increasing box (1), and the capacity increasing box (1) is hoisted on the bottom surface of the CT junction box through the flanging (1 c).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910770887.5A CN110401126B (en) | 2019-08-20 | 2019-08-20 | Secondary moisture-removing box for GIS current transformer of transformer substation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910770887.5A CN110401126B (en) | 2019-08-20 | 2019-08-20 | Secondary moisture-removing box for GIS current transformer of transformer substation |
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| CN110401126A CN110401126A (en) | 2019-11-01 |
| CN110401126B true CN110401126B (en) | 2023-08-29 |
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| CN110401126A (en) | 2019-11-01 |
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