GAS INSULATED SUBSTATION CABINET FOR PRECISE AIR SUPPLY CONTROL

Abstract

Disclosed is a gas insulated substation cabinet for precise air supply control, comprising: cabinet doors arranged at one side of a cabinet body, a sealing mechanism arranged between a frame of the cabinet doors and a frame of the cabinet body, a supporting mechanism arranged in the cabinet body, a plurality of guiding mechanisms fixedly connected with the cabinet body inside along a vertical direction at equal intervals, electronic components respectively arranged in the guiding mechanisms, an air inlet device including a communicated pipeline, an air inlet mechanism on a top of communicated pipeline, an external air conditioner, and a filter mechanism at a bottom of the communicated pipeline, an air collecting device arranged at a bottom of an inner cavity of the cabinet and two air outlet devices respectively arranged on both sides of a bottom of the cabinet body.

Claims

1. A gas insulated substation (GIS) cabinet for precise air supply control, comprising: a cabinet body, wherein cabinet doors are arranged on one side of the cabinet body, a sealing mechanism is arranged between a frame of the cabinet door and a frame of cabinet body, a supporting mechanism is arranged in the cabinet body, a plurality of guiding mechanisms are fixedly connected with the cabinet body inside at equal intervals along a vertical direction, different electronic components are respectively arranged in the guiding mechanisms, and the guiding mechanisms and the electronic components are connected with the supporting mechanism by bolts; an air inlet device, wherein the air inlet device comprises a communicated pipeline, a top of the communicated pipeline is provided with an air inlet mechanism, a bottom of the air inlet mechanism is communicated with the top of the communicated pipeline, the air inlet mechanism is communicated with an external air conditioner, and a bottom of the communicated pipeline is provided with a filter mechanism; an air collecting device arranged at a bottom of an inner cavity of the cabinet body; and two air outlet devices respectively arranged on both sides of a bottom of the cabinet body.

2. The GIS cabinet for precise air supply control according to claim 1, wherein the air inlet mechanism comprises an air inlet pipeline, one end of the air inlet pipeline is sleeved outside the communicated pipeline, an outer wall of the air outlet end of the air inlet pipeline is fixedly connected with a fixing ring; an outer wall of a top of the cabinet body is fixedly connected with a connecting ring matched with the fixing ring, the fixing ring is connected with the connecting ring by bolts, and the other end of the air inlet pipeline is communicated with the external air conditioner.

3. The GIS cabinet for precise air supply control according to claim 2, wherein a sealant is arranged between the fixing ring and the connecting ring.

4. The GIS cabinet for precise air supply control according to claim 1, wherein the filter mechanism comprises a filter cylinder, a top of the filter cylinder is fixedly connected to an outer wall of a top opening of the inner cavity of the cabinet body, an inner wall of the filter cylinder is fixedly connected with a filter screen, a bottom of the filter cylinder is detachably connected with a first louver, and the first louver is arranged as an Acrylonitrile Butadiene Styrene (ABS) anti-condensation double-layer adjustable louver.

5. The GIS cabinet for precise air supply control according to claim 4, wherein the air collecting device comprises an air collecting plate, a side wall of the air collecting plate is fixedly connected with an inner wall of the cabinet body, a top surface of the air collecting plate is provided with an air collecting hole, and a bottom surface of the air collecting plate is fixedly connected with an air collecting pump, and the air collecting pump is communicated with the air collecting hole.

6. The GIS cabinet for precise air supply control according to claim 1, wherein air outlet devices comprise second louvers, two sides of the bottom of the cabinet body are respectively provided with an air outlet hole, the second louvers are fixedly connected to inner walls of the air outlet holes, and the second louvers are configured as sealable louvers.

7. The GIS cabinet for precise air supply control according to claim 6, wherein the supporting mechanism comprises a plurality of horizontal supports, wherein a plurality of the horizontal supports are fixedly connected to two opposite inner walls of the cabinet body at equal intervals in a vertical direction, and lateral surfaces of the horizontal supports located on a same side are connected with vertical supports by bolts; the guiding mechanisms and the electronic components are respectively connected with the vertical supports by threads, and a plurality of threaded holes are respectively provided on the horizontal supports and the vertical supports.

8. The GIS cabinet for precise air supply control according to claim 7, wherein each guiding mechanism includes a bidirectional air deflector and a directional fan, wherein both ends of the bidirectional air deflector are detachably connected with two vertical supports by bolts; both ends of the directional fan are detachably connected with the two vertical supports by bolts; the directional fan is located below the bidirectional air deflector; the electronic components are arranged between the directional fan and the bidirectional air deflector; and circuit boards on the electronic components are detachably connected with the two vertical supports by bolts.

9. The GIS cabinet for precise air supply control according to claim 8, wherein an outer wall of each bidirectional air deflector is designed as a frosted surface, and thermal conductive silicone pads are also set between the circuit boards of the electronic components and the vertical supports.

9. The GIS cabinet for precise air supply control according to claim 1, wherein the sealing mechanism comprises a rubber tube, a side wall of the frame of the cabinet body is provided with an annular groove in a rectangular structure, the rubber tube is arranged in the annular groove, the rubber tube is arranged in an annular structure, an inner wall of the top of the cabinet body is fixedly connected with a sealing air pump, the sealing air pump is communicated with the rubber tube, and an outer wall of the rubber tube at the bottom of the cabinet body is communicated with an air outlet pipe; the air outlet pipe penetrates through an inner wall of the annular groove and is communicated with the inner cavity of the cabinet body, an aperture of the air outlet pipe is far smaller than an aperture of a communicating part of the sealing air pump and the rubber pipe, and sides of each cabinet door is fixedly connected with a sealing ring matched with the annular groove.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly explain the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings may be obtained according to these drawings without any creative efforts.

[0026] FIG. 1 is a schematic structural diagram of a gas insulated substation (GIS) cabinet for precise air supply control according to the present application.

[0027] FIG. 2 is a partial enlarged view of A1 in FIG. 1;

[0028] FIG. 3 is a schematic structural diagram of a sealing mechanism in the present application.

[0029] FIG. 4 is a partial enlarged view of A2 in FIG. 1.

[0030] FIG. 5 is a schematic structural diagram of a cabinet in the present application.

[0031] FIG. 6 is a front view of the present application.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, but not all of them. Based on the embodiment of the present application, all other embodiments obtained by ordinary technicians in the field without creative labor are within the scope of the present application.

[0033] In order to make the above objectives, features and advantages of the present application more obvious and understandable, the present application will be explained in further detail below with reference to the drawings and detailed description.

[0034] With reference to FIGS. 1-6, the present application provides a gas insulated substation (GIS) cabinet for precise air supply control, including: [0035] a cabinet body 1, where cabinet doors 2 are arranged on one side of the cabinet body 1, a sealing mechanism is arranged between a frame of the cabinet doors 2 and a frame of the cabinet body 1, a supporting mechanism is arranged in the cabinet body 1, a plurality of guiding mechanisms are fixedly connected with the cabinet body 1 inside along a vertical direction at equal intervals, different electronic components 3 are respectively arranged in the guiding mechanisms, and the guiding mechanisms and the electronic components 3 are connected with the supporting mechanism by bolts; [0036] an air inlet device, where the air inlet device includes a communicated pipeline 4, a top of the communicated pipeline 4 is provided with an air inlet mechanism, a bottom of the air inlet mechanism is communicated with the top of the communicated pipeline 4, the air inlet mechanism is communicated with an external air conditioner, and a bottom of the communicated pipeline 4 is provided with a filter mechanism; [0037] an air collecting device arranged at a bottom of an inner cavity of the cabinet body 1; [0038] two air outlet devices respectively arranged on both sides of a bottom of the cabinet body 1.

[0039] According to the application, by changing the mechanical air supply direction, the air is supplied from an upper part of the GIS cabinet, and the delivered cold air directly contacts the electronic components 3 generating more heat, so that the heat loss is reduced and the cold air is not prone to short flow. When entering the cabinet from the air supply outlet, the cold air keeps a high flow rate to avoid dew condensation. Through upper air inlet and lower air exhaust, the temperature of electronic components 3 in the cabinet are quickly reduced by convection heat transfer under the condition that the temperature in the cabinet is too high, and dew condensation is prevented, thus reducing the running time of the air conditioner in the state of high energy consumption and ensuring the safe and stable operation of the equipment in the cabinet. The air inlet device is connected with the indoor side air outlet window of the air conditioning unit, and the air outlet devices directly lead to the room. The air outlet devices have the function of preventing mosquitoes and other small animals from entering. The electronic components 3 are merging unit, bus intelligent terminal, bus measurement and control and other components. The circuit boards of electronic components 3 are arranged at intervals along a vertical direction, and their positions may be adjusted along the vertical direction. The electronic components 3 are respectively installed on the supporting mechanism by bolts, so that the circuit boards are suspended and the heat dissipation effect is enhanced. The air collecting device makes the air in the cabinet body 1 circulate more quickly, and makes the heat generated by the electronic components 3 evaporate quickly.

[0040] In an embodiment, the air inlet mechanism includes an air inlet pipeline 5, one end of the air inlet pipeline 5 is sleeved outside the communicated pipeline 4, and an outer wall of an air outlet end of the air inlet pipeline 5 is fixedly connected with a fixing ring 6, and an outer wall of a top of the cabinet body 1 is fixedly connected with a connecting ring 7 matching with the fixing ring 6. The fixing ring 6 is connected with the connecting ring 7 by bolts, and the other end of the air inlet pipeline 5 is communicated with the external air conditioner.

[0041] In an embodiment, a sealant is arranged between the fixing ring 6 and the connecting ring 7.

[0042] The air inlet pipeline 5 is connected with the cabinet body 1 in a plug-in manner. The communicated pipeline is prepared first, and then the air inlet pipeline 5 is installed. This connection method has the characteristics of safety sealing, preventing air from leaking out, saving materials and enhancing high pressure bearing capacity. The air inlet pipeline 5 is made of stainless steel, and the sealant (such as neutral glass glue) is applied to joints such as felling, rivet seam and flange flanging corners. Before applying the sealant, dust and oil stain should be removed.

[0043] In an embodiment, the filter mechanism includes a filter cylinder 8, a top of the filter cylinder 8 is fixedly connected to an outer wall of a top opening of the inner cavity of the cabinet body 1, an inner wall of the filter cylinder 8 is fixedly connected with a filter screen 9, and a bottom of the filter cylinder 8 is detachably connected with a first louver 10, the filter cylinder 8 is designed as an Acrylonitrile Butadiene Styrene (ABS) anti-condensation double-layer adjustable louver.

[0044] The filter screen 9 prevents dust from entering the cabinet body 1 and prevents the electronic components 3 from short circuit.

[0045] In an embodiment, the air collecting device includes an air collecting plate 11, where a side wall of the air collecting plate 11 is fixedly connected with an inner wall of the cabinet body 1, a top surface of the air collecting plate 11 is provided with an air collecting hole, a bottom surface of the air collecting plate 11 is fixedly connected with an air collecting pump 12, and the air collecting plate 11 is communicated with the air collecting hole.

[0046] In an embodiment, the air outlet devices include second louvers 13, two sides of the bottom of the cabinet body 1 are respectively provided with an air outlet hole, the second louvers 13 are fixedly connected to the inner walls of the air outlet holes, and the second louvers 13 are designed as sealable louvers.

[0047] In an embodiment, the supporting mechanism includes a plurality of horizontal supports 14, a plurality of horizontal supports 14 are fixedly connected to two opposite inner walls of the cabinet body 1 at equal intervals in a vertical direction. The side surfaces of the horizontal supports 14 located on a same side are connected with the vertical supports 15 by bolts, and the guiding mechanisms and the electronic components 3 are respectively connected with the vertical supports 15 by threads. The horizontal supports 14 and the vertical supports 15 are respectively provided with a plurality of threaded holes.

[0048] Horizontal supports 14 and vertical supports 15 are fixed on the inner wall of the cabinet body 1 by combining welding seam and bolts. The connection between the guide mechanisms and electric components and the vertical supports uses bolts to connect with threaded holes on the vertical supports and this connection has advantages of simple construction processing, easy assembly and disassembly and downward layout of electric components 3 in sequence.

[0049] In an embodiment, the guiding mechanism includes a bidirectional air deflector 16 and a directional fan 17. Two ends of the bidirectional air deflector 16 are detachably connected with two vertical supports 15 by bolts, and two ends of the directional fan 17 are detachably connected with two vertical supports 15 by bolts. The directional fan 17 is located below the bidirectional air deflector 16, and electronic components 3 are arranged between the directional fan 17 and the bidirectional air deflector 16. The circuit boards on the electronic components 3 is detachably connected with the two vertical supports by bolts.

[0050] In an embodiment, an outer wall of the bidirectional air deflector 16 is configured as a frosted surface, and thermal conductive silicone pads are also set between the circuit boards of the electronic components 3 and the vertical supports.

[0051] The thermal conductive silicone pads fix the electronic components 3 and have many functions such as high thermal conductive efficiency, electrical insulation, shock-proof and puncture-proof, etc. The high temperature-resistant wire Q/TST-DL-001 is fixed with the thermal conductive silicone adhesive tape, so the long service life is ensured. The bidirectional air deflector 16 makes the cooling air at the air inlet and outlet flow to heating elements to the maximum extent, and at the same time ensures the rapid heat dissipation. The frosted surface of the bidirectional air deflector plate prevents condensation from backflowing. The directional fan 17 is arranged below the heating elements to speed up air circulation in the cabinet body 1.

[0052] According to the application, through upper air inlet and lower air exhaust, the temperature of the electronic components 3 in the cabinet is quickly reduced through convection heat transfer under the condition that the temperature in the cabinet body 1 is too high, and condensation is prevented, thereby reducing the continuous running time of the air conditioner in a high energy consumption state and ensuring the safe and stable operation of the equipment in the cabinet.

[0053] An inner layer of the air inlet pipeline 5 is equipped with an automatic monitoring instrument to monitor the air supply temperature and humidity, and the air outlet hole is connected with an air exhaust duct. Inner and outer layers of the exhaust duct are made of specially modified impact-resistant polypropylene-block copolymer (PP-B) resin, and a middle layer changes the density and microstructure of the pipe by adding noise-reducing and sound-absorbing materials, so as to absorb audible and sound waves and prevent sound waves from coming out. As the pipe is made of specially modified impact-resistant PP-B resin, it has all the advantages of ordinary plastic drainage pipes, and also has the characteristics of “impact resistance (impact performance is as good as that of cast iron pipes), high temperature resistance, long service life (with ability for discharging hot water at 95° C. for a long time), noise reduction and sound reduction.

[0054] In an embodiment, the sealing mechanism includes a rubber tube 18, a side wall of the frame of the cabinet body 1 is provided with an annular groove in a rectangular structure, the rubber tube 18 is arranged in the annular groove, the rubber tube 18 is arranged in an annular structure, an inner wall of the top of the cabinet body 1 is fixedly connected with a sealing air pump 19, the sealing air pump 19 is communicated with the rubber tube 18, and an outer wall of the rubber tube 18 at the bottom of the cabinet body 1 is communicated with an air outlet pipe 20. The air outlet pipe 20 passes through an inner wall of the annular groove and communicates with the inner cavity of the cabinet body 1. An aperture of the air outlet pipe 20 is much smaller than that of communicating part of the sealing air pump 19 and the rubber tube 18. Sides of each cabinet door 2 is fixedly connected with a sealing ring 21 and the sealing ring 21 is matched with the annular groove.

[0055] Gas is introduced into the rubber tube 18 through the sealing air pump 19, so that the rubber tube 18 expands and fills the annular groove, thus further enhancing the airtightness, and avoiding a situation that a rubber sealing strip conventionally arranged is hardened and reduces the airtightness due to long-term service.

[0056] In the description of the present application, it should be understood that directions or positional relationships indicated by the terms “longitudinal”, “transverse”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” are based on directions or positional relationships of drawings and are only used for describing the present application, rather than indicating or implying that the devices or elements must be in designated directions, or configured or operated in designated directions so that they cannot be understood as the limitation of this application.

[0057] The above-mentioned embodiments only describe the preferred mode of the application, but do not limit the scope of the application. On the premise of not departing from the design spirit of the application, all kinds of modifications and improvements made by ordinary technicians in the field to the technical scheme of the application shall fall within the scope of protection determined by the claims of the application.