CN119560896A - A low-level exhaust and backflow prevention device for power distribution station - Google Patents
A low-level exhaust and backflow prevention device for power distribution station Download PDFInfo
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- CN119560896A CN119560896A CN202411598781.9A CN202411598781A CN119560896A CN 119560896 A CN119560896 A CN 119560896A CN 202411598781 A CN202411598781 A CN 202411598781A CN 119560896 A CN119560896 A CN 119560896A
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- air inlet
- exhaust
- wall
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
- E04H5/04—Transformer houses; Substations or switchgear houses
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
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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
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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
- H02B1/56—Cooling; Ventilation
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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
- H02B7/00—Enclosed substations, e.g. compact substations
- H02B7/06—Distribution substations, e.g. for urban network
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Ventilation (AREA)
Abstract
本发明公开了一种配电站房低位排风防倒灌装置，属于配电站排风技术领域。该装置包括排风仓和三个管道风机，三个所述管道风机并列固定连接于排风仓的一侧，且三个管道风机的出风口均连通于排风仓的内腔，所述排风仓的外壁固定连接有换气房，换气房一侧的顶部开设有排风口，排风仓一侧的外壁贴合于排风口的内壁，三个所述管道风机远离排风仓的一侧均固定连接有L型管。本发明一方面通过进风仓解决低位抽出站房内热空气的需求，另一方面通过高位设置的排风仓将热空气排出站房，有效防止外界雨水从低位倒灌进入站房的情况，进风仓的吸风口设置于自身侧面的顶部，可以在一段时间内通过进风仓的侧壁阻挡雨水流入站房。
The present invention discloses a low-level exhaust backflow prevention device for a power distribution station, and belongs to the technical field of power distribution station exhaust. The device includes an exhaust bin and three duct fans, the three duct fans are fixedly connected to one side of the exhaust bin in parallel, and the air outlets of the three duct fans are all connected to the inner cavity of the exhaust bin, the outer wall of the exhaust bin is fixedly connected to a ventilation room, the top of one side of the ventilation room is provided with an exhaust outlet, the outer wall of one side of the exhaust bin is attached to the inner wall of the exhaust outlet, and the three duct fans are fixedly connected to an L-shaped pipe on one side away from the exhaust bin. On the one hand, the present invention solves the need to extract hot air from the station house at a low position through an air inlet bin, and on the other hand, the hot air is discharged from the station house through an exhaust bin arranged at a high position, effectively preventing the external rainwater from backflowing into the station house from a low position, and the air inlet of the air inlet bin is arranged at the top of its side, which can prevent rainwater from flowing into the station house through the side wall of the air inlet bin for a period of time.
Description
Technical Field
The invention belongs to the technical field of air exhaust of power distribution stations, and particularly relates to a low-position air exhaust backflow prevention device for a power distribution station room.
Background
The power distribution station room is an indoor power distribution place with low-voltage load and mainly used for distributing electric energy to low-voltage users and is provided with a medium-voltage inlet wire, a distribution transformer and a low-voltage distribution device. The components and parts inside the power distribution station room can accumulate a large amount of heat in long-time live working, and the power distribution station room with lower installation height for heat generating elements needs to be subjected to targeted heat dissipation treatment by using a low-level exhaust device because a heat dissipation exhaust facility is needed to be equipped for timely ventilation and heat dissipation.
Through retrieving, the chinese patent application of application publication No. CN114673421a discloses a power distribution station room anti-waterlogging device, aims at providing a power distribution station room anti-waterlogging device that can be effectual when flood season arrives, prevent rainwater entering power distribution station room under the circumstances that does not influence staff's daily inspection fortune dimension work and equipment transport. The device is mainly waterproof measure for stopping rainwater infiltration through the gasbag inflation, but the gasbag inflation does not possess reversibility, needs manual operation to reset, and can not effectively discharge the inside rainwater in station room, and the kinetic energy that produces when the gasbag inflation is likely to cause the damage to the distribution substation structure simultaneously.
Disclosure of Invention
The invention aims to solve the technical problem that rainwater and waterproof components in a power distribution station room cannot be effectively discharged, and the structure of the power distribution station is possibly damaged by the waterproof components, and provides a low-position air exhaust backflow prevention device for the power distribution station room.
The invention discloses a low-level air exhaust backflow prevention device of a power distribution station room, which comprises an air exhaust bin and three pipeline fans, wherein the three pipeline fans are fixedly connected to one side of the air exhaust bin in parallel, air outlets of the three pipeline fans are all communicated with an inner cavity of the air exhaust bin, an air exchange room is fixedly connected to the outer wall of the air exhaust bin, the top of one side of the air exchange room is provided with the air outlet, the outer wall of one side of the air exhaust bin is attached to the inner wall of the air outlet, one side of the three pipeline fans, which is far away from the air exhaust bin, is fixedly connected with L-shaped pipes, the bottom ends of the three L-shaped pipes are fixedly connected with the same air inlet bin, one side of the top of the air inlet bin is provided with an air suction inlet, the bottom of one side, which is close to the air inlet bin, is provided with an air inlet, the outer wall of the air inlet bin is attached to the inner wall of the air inlet, the inner side of the air suction bin is connected with a sliding window, the inner wall of the sliding window is fixedly connected with a filter screen, one side, which is close to the air inlet bin, is fixedly connected with a lifting plate, one side, which is far away from the lifting plate, of the lifting plate is fixedly connected with a main drain pipe, the bottom of one side, which is close to the air inlet bin is attached to the inner side of the air outlet pipe, is provided with two electromagnetic valves which are symmetrically distributed to the two side of the main drain pipes, and the two electromagnetic valve bodies which are symmetrically arranged, and the two side-distributed, and the two side electromagnetic valve bodies are arranged.
Further, the inner walls of the two sides of the air suction inlet are provided with sliding grooves, the inner parts of the two sliding grooves are connected with limiting strips in a sliding mode, the two limiting strips are respectively and fixedly connected to the two sides of the sliding window, and the middle position of the outer wall of the top of the sliding window is fixedly connected with a pull handle.
Further, the bottom of one side of the ventilation room is hinged with an access door, one side of the middle part of the access door is provided with a handle, and the middle position of the top of the access door is provided with an observation window.
Further, the outer wall fixedly connected with bee calling organ at room top of taking a breath, and the outer wall fixedly connected with tower lamp at room top of taking a breath, the solenoid valve is connected with the switch through the wire, and the switch is connected with the power through the wire, and bee calling organ and tower lamp all establish ties in the power supply circuit of solenoid valve.
Further, the outer wall fixedly connected with locating frame that the room of taking a breath is close to air exit one side, two equal fixedly connected with fastening ear of both sides of locating frame, one side of locating frame is in the coplanar with the outer wall that the room of taking a breath is close to air exit one side, and the glueing groove has been seted up to the opposite side of locating frame, and the junction bonding of bin of airing exhaust and air exit has joint strip.
Further, the inner walls of the two sides of the ventilation room are fixedly connected with groove wood sound absorbing boards which are vertically arranged.
Further, the inner wall of the side, far away from the pipeline fan, of the exhaust bin is fixedly connected with a baffle plate which is obliquely arranged.
Further, the inner wall fixedly connected with gallows at ventilation room top, the outer wall of the bottom of three pipeline fans all contacts with the inner wall of gallows bottom.
Further, one side of the air inlet bin, which is close to the main drain pipe, is inserted with an auxiliary drain pipe, the top of the auxiliary drain pipe, which is close to one side of the air inlet bin, is fixedly connected with a transparent pipe, the transparent pipe is communicated with the inside of the air inlet bin through the auxiliary drain pipe, and a valve is arranged in the middle of the auxiliary drain pipe.
Further, the inner wall fixedly connected with casing that the inlet scoop is close to one side of the air inlet storehouse, the intermediate position fixedly connected with thread bush at casing top, the inside threaded connection of thread bush has the screw rod, the bottom of screw rod rotates and is connected with the contact, the top fixedly connected with carousel of screw rod, one side fixedly connected with bracing piece at lifter plate top, one side fixedly connected with firing pin at bracing piece top, the top threaded connection of firing pin has the adapter sleeve, the top fixedly connected with contact down of adapter sleeve, the contact down is located the inside of casing, adapter sleeve and screw rod all adopt insulating material to make, contact down and last contact all adopt electrically conductive material to make, contact down and last contact are connected in the two poles of the electricity through the wire respectively.
Compared with the prior art, the invention has the remarkable progress that 1) the device is provided with the L-shaped pipe, the air inlet bin, the air exhaust bin, the floating plate, the through hole, The device comprises a main drain pipe and an electromagnetic valve, wherein the main drain pipe and the electromagnetic valve are designed through the height of an L-shaped pipe and different orientations at two ends, the low-level induced draft and high-level exhaust of a station room are realized, the requirement of hot air in the low-level extracted station room is met through an air inlet bin, on the one hand, the hot air is discharged out of the station room through an exhaust bin arranged at a high level, the condition that external rainwater flows back into the station room from a low level is effectively prevented, when extremely bad weather occurs, the possibility that rainwater flows into the air inlet bin through a pipeline exists, the air inlet of the air inlet bin is arranged at the top of the side surface of the main drain pipe, the rainwater can be blocked from the rainwater flow station room through the side wall of the air inlet bin in a period of time, the rainwater is permeated down through a through hole and is collected below a floating plate which is raised by an heightened strip, the floating plate continuously rises under the buoyancy effect as the rainwater is collected in the air inlet bin, the air inlet bin is synchronously raised, the air inlet is prevented from entering the station room, and meanwhile, a cover plate leaves one side of the main drain pipe is controlled to conduct the electromagnetic valve, the accumulated water can be discharged out of the station room from the main drain, the rainwater can be discharged out of the main drain through the main drain pipe, the side of the station room, the rainwater can be prevented from the side of the main drain down, the high-level, the rainwater can permeate into the station, and the bad weather can be discharged from the station, and the station can be discharged through the bad weather, and the station can be discharged, and the bad weather, and the function can be realized, 2, can be well, and the bad weather can be discharged The device comprises a buzzer, an access door, a positioning frame, a sizing groove and a fastening lug, wherein when an electromagnetic valve is conducted and drained after water enters the air inlet bin, the tower lamp and the buzzer are synchronously started, workers are reminded of further waterproof maintenance treatment through acousto-optic signal transmission, potential safety hazards are timely checked, the side face of the air exchange room is provided with the access door positioned in the station room, the workers can conveniently maintain the device, rainwater can be prevented from entering the air exchange room through the access door, when the air exchange room is maintained, the access door can be opened and closed through a handle, the internal state of the air exchange room can be primarily observed through the observation window, 3) the device is used for connecting the air exchange room with the side wall of the power distribution station room through the fastening lug, the sizing groove is attached to the outer wall of the power distribution station room, sealing glue is filled into the sizing groove before installation is completed, on one hand, the installation effect is enhanced, on the other hand, the waterproof effect is optimized, one side of the positioning frame is provided with the sizing groove is attached to the outer wall of the power distribution station room, and positioning between the air exchange room and the power distribution station room is assisted in the installation process through the outline of the positioning frame, and 4) the valve is arranged, The auxiliary drain pipe, the transparent pipe, the valve is normally closed, the transparent pipe, the auxiliary drain pipe and the air inlet bin form a communicating pipe structure, workers can accurately control the water inflow in the air inlet bin through the water level in the transparent pipe, 5) the device can control the height of the upper contact plate through setting the lower contact plate, the upper contact plate and the screw rod, water accumulation rises, a floating plate and a lifting plate synchronously rise, a supporting rod drives a firing pin to push out, the lower contact plate is enabled to be attached to the upper contact plate upwards, an electromagnetic valve, a tower lamp and a buzzer are controlled to be connected to a power supply, the lower contact plate is enabled to be downwards far away from the upper contact plate after the water level falls, the electromagnetic valve, the tower lamp and the buzzer are disconnected from the power supply, so that automatic control of drainage and warning functions is achieved, the height of the upper contact plate can be adjusted through rotating the screw rod, and then the distance required to rise when the lower contact plate is attached to the upper contact plate is changed, and control of the water inflow required for warning and automatic drainage is achieved.
In order to more clearly describe the functional characteristics and structural parameters of the present invention, the following description is made with reference to the accompanying drawings and detailed description.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
fig. 1 is a schematic diagram of a front structure of a low-level exhaust and backflow prevention device for a substation room according to the present invention;
Fig. 2 is a schematic diagram of a cross-sectional structure of a ventilation room of the low-level exhaust anti-backflow device of the substation room provided by the invention;
fig. 3 is a schematic diagram of the back structure of a low-level exhaust and backflow prevention device for a substation room according to the present invention;
Fig. 4 is a schematic diagram of a partial structure of a low-level exhaust anti-backflow device of a substation room according to the present invention;
Fig. 5 is a schematic diagram of a structure of a low-level exhaust anti-backflow device of a substation room provided by the invention;
fig. 6 is a schematic diagram of a structure of a position B of a low-level exhaust anti-backflow device of a substation room according to the present invention;
Fig. 7 is a schematic diagram of a cross-sectional structure of an air inlet bin of a low-level air exhaust anti-backflow device of a substation room;
FIG. 8 is a schematic diagram of a floating plate structure of a low-level exhaust anti-backflow device for a substation room according to the present invention;
Fig. 9 is a schematic diagram of a shell cross-sectional structure of a low-level exhaust anti-backflow device of a substation room.
The air exchanging system comprises a ventilating room 1, a tower lamp 2, a buzzer 4, an air inlet 5, an access door 6, a handle 7, an observation window 8, an air exhausting bin 9, an air exhausting opening 10, a baffle plate 11, a positioning frame 12, a main water draining pipe 13, a secondary water draining pipe 14, a fastening lug 15, a sealing rubber strip 16, a through slot 17, a hanging bracket 18, a pipeline fan 19, a groove wood sound absorbing plate 20, an L-shaped pipe 21, a sizing groove 22, an air inlet bin 23, an air suction opening 24, a pull handle 25, a sliding window 26, a filter screen 27, a transparent pipe 28, a valve 29, an electromagnetic valve 30, a sliding groove 31, a lifting plate 32, a supporting rod 33, a firing pin 34, a shell 35, a limiting bar 36, a turntable 37, a floating plate 38, an heightening bar 39, a cover plate 40, a through hole 41, a connecting sleeve 42, a lower contact piece 43, an upper contact piece 44, a screw rod 45 and a threaded sleeve.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention are included in the protection scope of the present invention.
Referring to fig. 1-9, a low-level air exhaust backflow preventing device of a power distribution station room comprises an air exhaust bin 8 and three pipeline fans 18, wherein the three pipeline fans 18 are fixedly connected to one side of the air exhaust bin 8 in parallel, air outlets of the three pipeline fans 18 are all communicated with an inner cavity of the air exhaust bin 8, an outer wall of the air exhaust bin 8 is fixedly connected with an air exchange room 1, an air exhaust port 9 is formed in the top of one side of the air exchange room 1, the outer wall of one side of the air exhaust bin 8 is attached to the inner wall of the air exhaust port 9, one side of the three pipeline fans 18, far from the air exhaust bin 8, is fixedly connected with an L-shaped pipe 20, the bottom ends of the three L-shaped pipes 20 are fixedly connected with the same air inlet bin 22, an air inlet 23 is formed in one side of the top of the air inlet bin 22, an air inlet 4 is formed in the bottom of the air exchange room 1, the outer wall of the air inlet bin 22 is attached to the inner wall of the air inlet 4, a sliding window 25 is slidingly connected inside the air inlet 23, the filter screen 26 is fixedly connected with the inner wall of the sliding window 25, the floating plate 37 is arranged in the air inlet bin 22, the lifting plate 31 is fixedly connected with one side of the floating plate 37 close to the air inlet 4, the cover plate 39 is fixedly connected with one side of the floating plate 37 far away from the lifting plate 31, the main drain pipe 12 is fixedly connected with the bottom of one side of the air inlet bin 22 close to the cover plate 39, the pipe orifice at one end of the main drain pipe 12 is attached to one side of the cover plate 39, the other end of the main drain pipe 12 extends to the outside of the ventilation room 1, the electromagnetic valve 29 is arranged in the middle of the main drain pipe 12, the uniformly distributed through holes 40 are formed in the plate body of the floating plate 37, the two symmetrically arranged heightening strips 38 are fixedly connected with the bottom of the floating plate 37, the ventilation room 1 is arranged on the side surface of the distribution room, the air inlet 4 faces the inside of the distribution room, the air outlet 9 faces the outside of the station room, after the pipeline fan 18 is started, the hot air in the station room enters the air inlet bin 22 through the air inlet bin 23, then is discharged out of the station room through the L-shaped pipe 20 and the air exhaust bin 8, the circulated air is filtered through the filter screen 26, the air pipeline is prevented from being blocked, the low-level air suction and high-level air exhaust of the station room are realized through the design of the L-shaped pipe 20 with different orientations of the height and the two ends, the requirement of the low-level air suction and the high-level air exhaust of the station room is met through the air inlet bin 22, the hot air is discharged out of the station room through the air exhaust bin 8 arranged at a high level, the condition that external rainwater permeates into the station room from a low level is effectively prevented, when extremely bad weather occurs, the possibility that the rainwater is poured into the air inlet bin 22 through a pipeline exists, the air inlet bin 22 is arranged at the top of the side surface of the air inlet bin 23, rainwater can be blocked through the side wall of the air inlet bin 22 and flow into the station room in a period of time, rainwater seeps downwards through the through hole 40 in the period of time, and is converged below the floating plate 37 lifted by the heightening strips 38, the floating plate 37 continuously rises under the buoyancy effect along with the rainwater converging and increasing in the air inlet bin 22, the lifting plate 31 synchronously rises at the moment, the air suction inlet 23 is blocked, the water is prevented from entering the station room, the cover plate 39 leaves one side of the main drain pipe 12, the electromagnetic valve 29 is controlled to be conducted, the water can be discharged out of the station room from the main drain pipe 12, and the functions of preventing the rainwater from seeping into the station room and buffering and discharging the water in bad weather are realized on the premise of ensuring low-position air exhaust and heat dissipation of the device.
According to the invention, the inner walls at two sides of the air suction inlet 23 are respectively provided with the sliding grooves 30, the inner parts of the two sliding grooves 30 are respectively and slidably connected with the limiting strips 35, the two limiting strips 35 are respectively and fixedly connected with two sides of the sliding window 25, the middle position of the outer wall of the top of the sliding window 25 is fixedly connected with the pull handle 24, the sliding window 25 can be detached from the air suction inlet 23 by pulling the sliding window 25 upwards through the pull handle 24, the filter screen 26 is convenient to detach and clean, and the limiting strips 35 slide along the inner walls of the sliding grooves 30 in the moving process of the sliding window 25, so that the sliding window 25 is accurately positioned.
According to the invention, the bottom of one side of the ventilation room 1 is hinged with the access door 5, one side of the middle part of the access door 5 is provided with the handle 6, the middle position of the top of the access door 5 is provided with the observation window 7, the side surface of the ventilation room 1 is provided with the access door 5 positioned in the station room, so that the device is convenient for workers to overhaul, meanwhile, rainwater can be prevented from entering the ventilation room 1 through the access door 5, and when in overhaul, the access door 5 can be opened and closed through the handle 6, and the internal state of the ventilation room 1 can be primarily observed through the observation window 7.
According to the invention, the buzzer 3 is fixedly connected to the outer wall of the top of the ventilation room 1, the tower lamp 2 is fixedly connected to the outer wall of the top of the ventilation room 1, the electromagnetic valve 29 is connected with the switch through the lead, the switch is connected with the power supply through the lead, the buzzer 3 and the tower lamp 2 are both connected in series with the power supply circuit of the electromagnetic valve 29, after water enters the air inlet bin 22, the electromagnetic valve 29 is conducted and drained, and simultaneously the tower lamp 2 and the buzzer 3 are synchronously started, and the staff is reminded to make further waterproof overhaul treatment through the signal transmission of sound and light, so that potential safety hazards are timely checked.
According to the invention, the outer wall of one side of a ventilation room 1 close to an air outlet 9 is fixedly connected with a positioning frame 11, two sides of the positioning frame 11 are fixedly connected with two fastening lugs 14, one side of the positioning frame 11 and the outer wall of one side of the ventilation room 1 close to the air outlet 9 are positioned on the same plane, the other side of the positioning frame 11 is provided with an adhesive applying groove 21, the joint of the air outlet 8 and the air outlet 9 is adhered with a sealing adhesive strip 15, the ventilation room 1 is connected with the side wall of a distribution station room through the fastening lugs 14, the adhesive applying groove 21 is adhered to the outer wall of the distribution station room, before installation is completed, sealing adhesive is filled into the adhesive applying groove 21, on one hand, the installation effect is enhanced, on the other hand, the waterproof effect is optimized, the side of the positioning frame 11 provided with the adhesive applying groove 21 is adhered to the outer wall of the distribution station room, and positioning between the ventilation room 1 and the distribution station room is assisted by the contour of the positioning frame 11.
In the invention, the inner walls of the two sides of the ventilation room 1 are fixedly connected with the groove wood sound absorbing boards 19 which are vertically arranged, and noise generated when the pipeline fan 18 works is absorbed through the groove wood sound absorbing boards 19.
According to the invention, the inner wall of one side of the exhaust bin 8 far away from the pipeline fan 18 is fixedly connected with the baffle plate 10 which is obliquely arranged, the baffle plate 10 plays a role in shielding rainwater in rainy days, and the inclined design can prevent rainwater from accumulating and flowing backwards to guide the rainwater to flow out of the exhaust bin 8.
In the invention, a hanging bracket 17 is fixedly connected to the inner wall of the top of the ventilation room 1, the outer walls of the bottoms of three pipeline fans 18 are contacted with the inner wall of the bottom of the hanging bracket 17, and the pipeline fans 18 are fixed through the hanging bracket 17.
In the invention, one side of the air inlet bin 22, which is close to the main water outlet 12, is inserted with the auxiliary water outlet 13, the top of one side of the auxiliary water outlet 13, which is close to the air inlet bin 22, is fixedly connected with the transparent pipe 27, the transparent pipe 27 is communicated with the inside of the air inlet bin 22 through the auxiliary water outlet 13, the middle part of the auxiliary water outlet 13 is provided with the valve 28, the valve 28 is normally closed, the transparent pipe 27, the auxiliary water outlet 13 and the air inlet bin 22 form a communicating pipe structure, and a worker can conveniently and accurately control the water inflow in the air inlet bin 22 through the water level in the transparent pipe 27.
According to the invention, a shell 34 is fixedly connected to the inner wall of one side of an air inlet bin 22 close to an air inlet 23, a threaded sleeve 45 is fixedly connected to the middle position of the top of the shell 34, a screw rod 44 is connected to the inner threads of the threaded sleeve 45, an upper contact piece 43 is rotatably connected to the bottom of the screw rod 44, a turntable 36 is fixedly connected to the top of the screw rod 44, a supporting rod 32 is fixedly connected to one side of the top of the lifting plate 31, a firing pin 33 is fixedly connected to one side of the top of the supporting rod 32, a connecting sleeve 41 is connected to the top of the firing pin 33 in a threaded manner, a lower contact piece 42 is fixedly connected to the top of the connecting sleeve 41, the lower contact piece 42 is positioned in the shell 34, the connecting sleeve 41 and the screw rod 44 are made of insulating materials, the lower contact piece 42 and the upper contact piece 43 are made of conductive materials, the lower contact piece 42 and the upper contact piece 43 are connected to two poles of a power supply through wires respectively, accumulated water rises, a floating plate 37 and the lifting plate 31 rise synchronously, the supporting rod 32 drives the firing pin 33 to push up, the upper contact piece 43 upwards, a solenoid valve 29, a tower lamp 2 and a buzzer 3 are controlled to be connected to the power supply, and the lower contact piece 42 is separated from the upper contact piece 43 downwards, and the upper contact piece is disconnected from the power supply 2 and the buzzer 3.
When in use, the ventilation room 1 is arranged on the side surface of the power distribution station room, wherein the air inlet 4 faces the inside of the power distribution station room, the air outlet 9 faces the outside of the station room, after the pipeline fan 18 is started, hot air in the station room enters the air inlet bin 22 through the air inlet 23, and then is discharged out of the station room through the L-shaped pipe 20 and the air outlet bin 8, the circulated air is filtered through the filter screen 26, the air pipeline is prevented from being blocked, the low-level air suction and the high-level air discharge of the station room are realized through the design of the L-shaped pipe 20 with different orientations of the self height and the two ends, the device is used for solving the requirement of hot air in the station room at low level through the air inlet bin 22, the hot air is discharged out of the station room through the air outlet bin 8 arranged at high level, the condition that external rainwater flows backward from low level into the station room is effectively prevented, when extremely bad weather occurs, and the possibility that the rainwater flows into the air inlet bin 22 through the pipeline exists, the air suction inlet 23 of the air inlet bin 22 is arranged at the top of the side surface of the air suction bin 22, rainwater can be blocked from flowing into the station room through the side wall of the air inlet bin 22 in a period of time, in the period of time, the rainwater permeates downwards through the through holes 40 and is converged below the floating plate 37 lifted by the heightening strips 38, the floating plate 37 continuously rises under the buoyancy effect as the rainwater is converged and increased in the air inlet bin 22, the lifting plate 31 synchronously rises at the moment, the air suction inlet 23 is blocked, the accumulated water is prevented from entering the station room, meanwhile, the cover plate 39 leaves one side of the main drain pipe 12, the floating plate 37 and the lifting plate 31 synchronously rise, the supporting rod 32 drives the firing pin 33 to push upwards, the lower contact piece 42 is attached to the upper contact piece 43 upwards, the electromagnetic valve 29, the tower lamp 2 and the buzzer 3 are controlled to be conducted to a power supply, the accumulated water can be discharged from the outside of the station room from the main drain pipe 12 under the premise of ensuring the low-level air exhaust and heat dissipation of the device, the automatic control of the functions of preventing rainwater from penetrating into an inbound room and water accumulation buffering and discharging under severe weather is realized, after the water level is lowered, the lower contact piece 42 is downwards away from the upper contact piece 43, the electromagnetic valve 29, the tower lamp 2 and the buzzer 3 are disconnected with a power supply, the floating plate 37 is reset, so that the automatic control of the functions of water discharge and warning is realized, the screw 44 is rotated through the rotary table 36, the height of the upper contact piece 43 can be adjusted, the distance required to rise when the lower contact piece 42 is attached to the upper contact piece 43 is changed, the control of the water inflow required for warning and automatic water discharge is realized, and the device can be suitable for more different situations and places.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A low-level exhaust backflow preventing device for a power distribution station room is characterized by comprising an exhaust bin (8) and three pipeline fans (18), wherein the three pipeline fans (18) are fixedly connected to one side of the exhaust bin (8) in parallel, air outlets of the three pipeline fans (18) are all communicated with an inner cavity of the exhaust bin (8), an air outlet (9) is formed in the top of one side of the exhaust bin (8) in a fixedly connected mode, the outer wall of one side of the exhaust bin (8) is attached to the inner wall of the air outlet (9), one side, far away from the exhaust bin (8), of the three pipeline fans (18) is fixedly connected with an L-shaped pipe (20), the bottom end of the L-shaped pipe (20) is fixedly connected with the same air inlet bin (22), an air suction inlet (23) is formed in one side of the top of the air inlet bin (22), an air inlet (4) is formed in the bottom of one side, close to the air inlet bin (22), the outer wall of the air inlet bin (22) is attached to the inner wall of the air inlet (4), the inner wall of the air inlet (23) is attached to the inner wall of the air inlet (23), a sliding window (25) is connected with an air inlet (37) and a floating plate (37) is fixedly connected to the inner wall (37), one side of the floating plate (37) away from the lifting plate (31) is fixedly connected with a cover plate (39), the bottom of the air inlet bin (22) close to one side of the cover plate (39) is fixedly connected with a main drain pipe (12), a pipe orifice at one end of the main drain pipe (12) is attached to one side of the cover plate (39), the other end of the main drain pipe (12) extends to the outside of the ventilation room (1), an electromagnetic valve (29) is arranged in the middle of the main drain pipe (12), through holes (40) which are uniformly distributed are formed in the plate body of the floating plate (37), and two symmetrically arranged heightening strips (38) are fixedly connected to the bottom of the floating plate (37).
2. The low-level exhaust and backflow prevention device for the power distribution station room according to claim 1, wherein sliding grooves (30) are formed in the inner walls of two sides of the air suction inlet (23), limiting strips (35) are slidably connected in the two sliding grooves (30), the two limiting strips (35) are fixedly connected to two sides of the sliding window (25) respectively, and pull handles (24) are fixedly connected to the middle positions of the outer walls of the top of the sliding window (25).
3. The low-level exhaust and backflow prevention device for the power distribution station room according to claim 1, wherein an access door (5) is hinged to the bottom of one side of the ventilation room (1), a handle (6) is arranged on one side of the middle of the access door (5), and an observation window (7) is arranged in the middle of the top of the access door (5).
4. The low-level exhaust and backflow prevention device for the power distribution station room according to claim 1, wherein a buzzer (3) is fixedly connected to the outer wall of the top of the ventilation room (1), a tower lamp (2) is fixedly connected to the outer wall of the top of the ventilation room (1), a switch is connected to an electromagnetic valve (29) through a wire, the switch is connected with a power supply through a wire, and the buzzer (3) and the tower lamp (2) are connected in series to a power circuit of the electromagnetic valve (29).
5. The distribution station room low-level exhaust backflow preventing device according to claim 1, wherein the outer wall of one side of the ventilation room (1) close to the air outlet (9) is fixedly connected with a positioning frame (11), two fastening lugs (14) are fixedly connected to two sides of the positioning frame (11), one side of the positioning frame (11) and the outer wall of one side of the ventilation room (1) close to the air outlet (9) are located on the same plane, an adhesive applying groove (21) is formed in the other side of the positioning frame (11), and a sealing adhesive tape (15) is adhered to the joint of the air outlet (9) and the air outlet (8).
6. The low-level exhaust and backflow prevention device for the substation room according to claim 1, wherein the inner walls of the two sides of the ventilation room (1) are fixedly connected with vertically arranged groove wood sound absorbing boards (19).
7. The low-level exhaust and backflow prevention device for the power distribution station room according to claim 1, wherein a baffle (10) which is obliquely arranged is fixedly connected to the inner wall of one side, far away from the pipeline fan (18), of the exhaust bin (8).
8. The low-level exhaust and backflow prevention device for the substation room according to claim 1, wherein a hanging bracket (17) is fixedly connected to the inner wall of the top of the ventilation room (1), and the outer walls of the bottoms of the three pipeline fans (18) are in contact with the inner wall of the bottom of the hanging bracket (17).
9. The low-level exhaust and backflow prevention device for the power distribution station room according to claim 1, wherein an auxiliary drain pipe (13) is inserted into one side, close to the main drain pipe (12), of the air inlet bin (22), a transparent pipe (27) is fixedly connected to the top of one side, close to the air inlet bin (22), of the auxiliary drain pipe (13), the transparent pipe (27) is communicated with the inside of the air inlet bin (22) through the auxiliary drain pipe (13), and a valve (28) is arranged in the middle of the auxiliary drain pipe (13).
10. The low-level exhaust backflow prevention device of the power distribution station room according to claim 1, wherein an inner wall of the air inlet bin (22) close to one side of the air inlet (23) is fixedly connected with a shell (34), a middle position of the top of the shell (34) is fixedly connected with a threaded sleeve (45), an inner threaded connection of the threaded sleeve (45) is provided with a threaded rod (44), the bottom of the threaded rod (44) is rotationally connected with an upper contact piece (43), the top of the threaded rod (44) is fixedly connected with a rotary table (36), one side of the top of the lifting plate (31) is fixedly connected with a supporting rod (32), one side of the top of the supporting rod (32) is fixedly connected with a firing pin (33), the top of the firing pin (33) is fixedly connected with a connecting sleeve (41), the top of the connecting sleeve (41) is fixedly connected with a lower contact piece (42), the lower contact piece (42) is located inside the shell (34), the connecting sleeve (41) and the threaded rod (44) are made of insulating materials, the lower contact piece (42) and the upper contact piece (43) are made of conductive materials, and the lower contact piece (43) are connected with two poles of a power supply through wires.
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| CN202411598781.9A CN119560896B (en) | 2024-11-11 | 2024-11-11 | A low-level exhaust and backflow prevention device for distribution station |
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| CN119560896B CN119560896B (en) | 2025-10-21 |
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