CN115090048B - Air inlet filter screen of high and cold rail transit vehicle equipment - Google Patents
Air inlet filter screen of high and cold rail transit vehicle equipment Download PDFInfo
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- CN115090048B CN115090048B CN202210551787.5A CN202210551787A CN115090048B CN 115090048 B CN115090048 B CN 115090048B CN 202210551787 A CN202210551787 A CN 202210551787A CN 115090048 B CN115090048 B CN 115090048B
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- filter screen
- mounting seat
- rail transit
- screen frame
- frame
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- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000002844 melting Methods 0.000 claims abstract description 8
- 230000008018 melting Effects 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 27
- 229910052799 carbon Inorganic materials 0.000 claims description 27
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 17
- 229910052802 copper Inorganic materials 0.000 claims description 17
- 239000010949 copper Substances 0.000 claims description 17
- 229910000838 Al alloy Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000007689 inspection Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- -1 gold-aluminum Chemical compound 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/88—Replacing filter elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D27/00—Heating, cooling, ventilating, or air-conditioning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
- F25D21/08—Removing frost by electric heating
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Filtering Materials (AREA)
Abstract
The invention discloses an intake filter screen for high and cold rail transit vehicle equipment, which relates to the technical field of intake filter screens for vehicle equipment, and comprises the following components: the device comprises a filter screen, a filter screen mounting seat and a filter screen frame fixedly arranged along the circumferential direction of the filter screen, wherein the filter screen mounting seat is arranged at an air inlet of rail transit vehicle equipment through bolts; the filter screen mounting seat is of a rectangular frame structure, the filter screen frame is of a rectangular frame structure with the size smaller than that of the filter screen mounting seat, and the filter screen frame can be inserted into and pulled out of the filter screen mounting seat; the inner side of the filter screen frame is also provided with a resistance wire which is used for heating after being electrified and melting snow and ice formed on the surface of the filter screen. The invention improves the cooling effect of the rail transit vehicle equipment when the equipment is used in the open sky in the alpine region, thereby avoiding affecting the driving efficiency or increasing the working strength of the train inspection personnel; meanwhile, the invention changes the disassembly and assembly mode of the filter screen, so that the filter screen is convenient to clean and maintain daily, and the operation and maintenance space of the filter screen is not required to be reserved.
Description
Technical Field
The invention relates to the technical field of vehicle equipment air inlet filter screens, in particular to an air inlet filter screen for high and cold rail transit vehicle equipment.
Background
When the track traffic vehicle equipment (such as a traction inverter, an auxiliary inverter, an air conditioning unit and the like) adopts a forced cooling mode (a built-in cooling fan is used for radiating the equipment), a filter screen is required to be arranged at the position of an air inlet of the equipment in order to block large-particle dust and sundries, ensure the cleanness in an air duct and prolong the service life of the fan. The common outer frame of the filter screen is made of aluminum alloy or stainless steel, a gold-aluminum small-aperture multi-layer folding net is arranged in the outer frame, the filter material is formed by combining multiple layers of cross longitudinal and transverse waveforms, and the two sides of the filter material are provided with cross steel bars serving as supporting functions, so that the firmness of the filter material can be improved.
The existing filter screen of the rail transit vehicle equipment is directly connected to the air inlet of the equipment through bolts, when the filter screen is cleaned, the filter screen is taken down after the installation bolts of the filter screen are required to be detached through tools, and the filter screen is cleaned through a high-pressure water gun or a high-pressure air gun.
The prior art scheme has the following defects:
(1) For the rail transit vehicle in the open air application in the alpine region, when the weather is in operation in winter, equipment air intake filter screen often can be covered by snow, ice completely, and the air intake can't inhale sufficient air, and equipment cooling effect greatly reduced, the train need fall the power operation, or need the personnel of examining frequently go down the trench and carry out the removal of equipment air intake department ice and snow, influence driving efficiency, increase the working strength of personnel of examining in a row.
(2) The filter screen is disassembled and assembled by means of tools such as a spanner or a sleeve, and the fixing bolts are required to be disassembled and assembled, so that the filter screen is inconvenient to clean and maintain daily;
(3) The disassembly and assembly mode of the filter screen determines that when the scheme of the device in the earlier stage is designed, the operation and maintenance space of the filter screen is required to be reserved, the scheme design limit is more, and the installation space of the device under the vehicle is occupied with 'the soil and the gold' to a certain extent.
Disclosure of Invention
In view of the above, the invention provides an air inlet filter screen of high-cold rail transit vehicle equipment, so as to improve the cooling effect of the equipment when the rail transit vehicle equipment is used in the high-cold area in the open air, avoid affecting the driving efficiency or increasing the working strength of the train inspection personnel; meanwhile, the invention changes the disassembly and assembly mode of the filter screen, so that the filter screen is convenient to clean and maintain daily, and the operation and maintenance space of the filter screen is not required to be reserved.
For this purpose, the invention provides the following technical scheme:
The invention provides an air inlet filter screen of high and cold rail transit vehicle equipment, which comprises the following components: the device comprises a filter screen, a filter screen mounting seat and a filter screen frame fixedly arranged along the circumferential direction of the filter screen, wherein the filter screen mounting seat is arranged at an air inlet of rail transit vehicle equipment through bolts; the filter screen mounting seat is of a rectangular frame structure, the filter screen frame is of a rectangular frame structure with the size smaller than that of the filter screen mounting seat, and the filter screen frame can be inserted into and pulled out of the filter screen mounting seat;
the inner side of the filter screen frame is also provided with a resistance wire which is used for heating after being electrified and melting snow and ice formed on the surface of the filter screen.
Further, carbon blocks are respectively arranged on the left side and the right side of the filter screen mounting seat; the carbon block comprises an outgoing line access point for connecting with a power supply circuit;
Copper inserts and insulating blocks are respectively arranged on the left side and the right side of the filter screen frame, and the copper inserts are used for being in contact with the carbon blocks to realize dynamic electrical connection; the insulating block is used for isolating the filter screen frame and the copper insert;
The resistance wire is connected in series between the two copper inserts.
Further, the carbon block is mounted on the screen mount by a coil spring.
Further, the carbon block is of a block structure, the carbon block is higher than the joint surface of the filter screen mounting seat and the filter screen frame, and one surface of the block structure is a slope.
Further, the resistance wire is arranged on the inner side of the filter screen.
Further, the power supply circuit includes: the power circuit breaker, the wind pressure switch, the temperature control switch and the resistance wire are connected in series; the resistance wire is connected in series in the circuit through an outgoing line access point of the carbon block;
The power circuit breaker is arranged in an electric appliance cabinet in the vehicle and is used for realizing short-circuit protection of a circuit, and the circuit is disconnected after short circuit occurs;
The wind pressure switch is arranged in the air duct and is closed when the wind pressure is lower than a set value;
the temperature control switch is arranged in the air duct and is closed when the temperature is lower than a threshold value;
when the wind pressure switch and the temperature control switch are simultaneously closed, a circuit forms a loop, and the resistance wire generates electricity and heat.
Further, the left side and the right side of the filter screen mounting seat are respectively provided with 1 positioning sliding groove for realizing the limit of the filter screen frame in the left direction and the right direction;
The front end of the filter screen mounting seat is also provided with 1 positioning chute for realizing forward limit of the filter screen frame.
Further, locking pins are respectively arranged on the left side and the right side of the rear end of the filter screen mounting seat;
The left side and the right side of the rear end of the filter screen frame are respectively provided with a lock pin positioning hole used for being matched with the lock pins to realize forward and backward limiting of the filter screen frame after the filter screen frame is completely inserted into the 3 positioning sliding grooves of the filter screen mounting seat.
Further, the filter screen mounting seat is made of aluminum alloy or stainless steel.
Further, the screen frame is made of aluminum alloy or stainless steel.
The invention has the advantages and positive effects that:
(1) According to the invention, a blind-insert and quick-change filter screen structure is designed, tools such as a spanner or a sleeve are not required for disassembling and assembling the filter screen, a fixing bolt is not required to be disassembled and assembled, the filter screen frame can be pulled out through a handle of the filter screen frame only by unlocking a lock pin, and the filter screen frame is only required to be pushed in along a positioning chute and locked when being assembled. The filter screen is convenient to clean and maintain daily;
(2) The disassembly and assembly mode of the filter screen determines the design of the equipment early-stage scheme, so that the operation and maintenance space of the filter screen is not required to be reserved, almost no excessive limitation is caused to the arrangement scheme of the equipment under the automobile, and the installation space of the equipment under the automobile with 'the earth' is not occupied;
(3) According to the invention, the resistance wire is used as a heating element for melting snow, so that for rail transit vehicles in open air in high and cold areas, snow and ice accumulated at an air inlet of equipment can be removed during the rainy and snowy weather operation in winter, the air inlet is ensured to suck enough air, and the ice and snow at the air inlet of the equipment are not required to be manually removed;
(4) In the power supply circuit of the resistance wire, the temperature switch and the wind pressure switch are doubly interlocked, and the resistance wire can be put into only under the conditions of low wind pressure and low temperature, so that the reliability is higher.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic diagram of a filter mount according to an embodiment of the present invention;
FIG. 2 is a schematic view of a screen frame (screen on screen frame not shown) according to an embodiment of the present invention;
FIG. 3 is a schematic view of a structure of a filter frame (a filter is disposed on the filter frame) according to an embodiment of the present invention;
Fig. 4 is a schematic structural diagram of an air intake filter screen of a high and cold rail transit vehicle device in an embodiment of the invention;
Fig. 5 is a schematic diagram of a power supply control circuit for a resistance wire according to an embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in fig. 1-4, the air inlet filter screen of the alpine rail transit vehicle device provided by the invention mainly comprises: the device comprises a filter screen 3, a filter screen mounting seat 1 and a filter screen frame 2 fixedly arranged along the circumferential direction of the filter screen 3, wherein the filter screen mounting seat 1 is arranged at an air inlet of rail transit vehicle equipment through bolts; the filter screen mounting seat 1 is of a rectangular frame structure, the filter screen frame 2 is of a rectangular frame structure with the size smaller than that of the filter screen mounting seat 1, and the filter screen frame 2 can be inserted and pulled out in the filter screen mounting seat 1; the inner side of the screen frame 2 is also provided with a resistance wire 7 for heating after being electrified, and melting snow and ice formed on the surface of the screen.
As shown in fig. 1, the filter screen mounting seat 1 is made of aluminum alloy or stainless steel, the filter screen mounting seat 1 is provided with 3 positioning sliding grooves, two sides of the filter screen mounting seat are respectively provided with a positioning sliding groove 12-1 and a positioning sliding groove 12-2, the left and right direction limiting of the filter screen frame 2 can be realized, the front end of the filter screen mounting seat 1 (the direction of inserting the filter screen frame into the filter screen mounting seat is taken as the forward direction, the front end refers to the end corresponding to the inserting end) is also provided with 1 positioning sliding groove 12-3, the forward limiting of the filter screen frame can be realized, and the filter screen frame 2 can be inserted into the filter screen mounting seat 1 through the 3 positioning sliding grooves arranged on the filter screen mounting seat 1 and can also be pulled out from the filter screen mounting seat 1.
The filter screen mounting seat 1 is also provided with 2 locking pins 4, 1 locking pin 4 is respectively arranged on two sides of the rear end (the direction of inserting the filter screen frame into the filter screen mounting seat is taken as the forward direction, the rear end refers to the inserting end) of the filter screen mounting seat 1, and after the filter screen frame 2 is completely inserted into 3 positioning sliding grooves of the filter screen mounting seat 1, the locking pins 4 are matched with locking pin positioning holes 8 of the filter screen frame 2 to realize forward and backward limiting of the filter screen frame 2. The air inlet filter screen adopts a pluggable disassembly and assembly mode, blind plugging and positioning of the filter screen can be realized through the positioning chute, and the filter screen can be fixed through the lock pin.
The filter screen mounting seat 1 is also provided with a carbon block 5-1 and a carbon block 5-2 at two sides (near the front end) respectively, and is used for contacting with a copper insert arranged on the filter screen frame 2 to realize dynamic electrical connection; the carbon block is installed on the filter screen mounting seat 1 through the coil spring, the carbon block is slightly higher than the joint surface of the filter screen mounting seat 1 and the filter screen frame 2, the slope design of one side of the carbon block can enable the filter screen frame to be easily inserted into the chute of the filter screen mounting without being interfered by the tilted carbon block, the coil spring is gradually compressed in the process of inserting the filter screen frame 2, and finally after the filter screen frame 2 is inserted, the carbon block and the copper insert are contacted with each other, and the elasticity of the coil spring can enable the carbon block and the copper insert of the filter screen frame 1 to be reliably contacted. The carbon blocks are connected in series in the power supply circuit through the outgoing line access points 9 thereof.
As shown in fig. 2, the filter screen frame 2 is made of aluminum alloy or stainless steel, and insulating blocks 10-1, 10-2, copper inserts 6-1 and 6-2 are respectively arranged on the left side and the right side of the filter screen frame 2, and the insulating blocks are used for isolating the filter screen frame 2 and the copper inserts and play a role in electric insulation; the resistance wire is connected in series between the two copper inserts 6-1 and 6-2, and dynamic electric connection is realized through the copper inserts and carbon blocks arranged at the two sides of the filter screen mounting seat 1 and at the positions corresponding to the copper inserts, and the resistance wire is used for heating after being electrified and melting snow and ice formed on the surface of the filter screen. Specifically, the resistance wire may be of any shape. The resistance wire 7 is arranged at the inner side of the filter screen (the inner side of the filter screen is the inner side of the equipment (air duct), and the outer space is the outer side) and is used for blocking large-particle dust and sundries, ensuring the cleaning in the air duct and prolonging the service lives of the fan and the resistance wire. In another embodiment, the resistance wire 7 may also be arranged outside the sieve.
The filter screen frame 2 is provided with a lock pin positioning hole 8 which is used for being matched with the lock pin 4 of the filter screen mounting seat 1 to realize forward and backward limiting of the filter screen frame 2. One end of the filter screen frame 2 is provided with a handle 11, which is convenient for the insertion and the extraction of the filter screen frame 2.
The air inlet filter screen of the alpine rail transit vehicle equipment provided by the invention is required to be provided with an external power supply circuit to realize the electrifying and heating functions of the resistance wire, as shown in fig. 5, the resistance wire is connected in series in the circuit through the copper insert, the carbon block and the outgoing line access point of the carbon block, the power supply voltage of the power supply can be AC220V, DC V or DC24V, and a power circuit breaker QF1, a wind pressure switch K1 and a temperature control switch ST1 are also arranged in the circuit for realizing short-circuit protection and related logic control functions.
The power circuit breaker QF1 is arranged in an electric appliance cabinet in the vehicle and is used for realizing short-circuit protection of a circuit, and is normally closed and opened after short circuit occurs in the circuit; the wind pressure switch K1 is arranged in the air duct and is closed when the wind pressure is low (for example, 40Pa, the air inlet is considered to be blocked by ice and snow when the wind pressure is low, and the set value is related to the type of the fan, the form of the air duct and the cooling power requirement); the temperature control switch ST1 is arranged in the air duct, and is closed when the temperature is low (for example, 0 ℃ and below are generally considered to exist in ice and snow), the resistance wire R is connected in series in the circuit through the outgoing line access points CN1 and CN2 of the carbon blocks 1 and 2, and the circuit can form a loop only when the wind pressure switch and the temperature control switch are closed at the same time, and the resistance wire R generates heat to start a snow melting mode.
The embodiment of the invention has the following technical advantages:
(1) According to the invention, a blind-insert and quick-change filter screen structure is designed, tools such as a spanner or a sleeve are not required for disassembling and assembling the filter screen, a fixing bolt is not required to be disassembled and assembled, the filter screen frame can be pulled out through a handle of the filter screen frame only by unlocking a lock pin, and the filter screen frame is only required to be pushed in along a positioning chute and locked when being assembled. The filter screen is convenient to clean and maintain daily;
(2) The disassembly and assembly mode of the filter screen determines the design of the equipment early-stage scheme, so that the operation and maintenance space of the filter screen is not required to be reserved, almost no excessive limitation is caused to the arrangement scheme of the equipment under the automobile, and the installation space of the equipment under the automobile with 'the earth' is not occupied;
(3) According to the invention, the resistance wire is used as a heating element for melting snow, so that for rail transit vehicles in open air in high and cold areas, snow and ice accumulated at an air inlet of equipment can be removed during the rainy and snowy weather operation in winter, the air inlet is ensured to suck enough air, and the ice and snow at the air inlet of the equipment are not required to be manually removed;
(4) The temperature switch and the wind pressure switch are doubly interlocked, and the resistance wire can be put into only under the conditions of low wind pressure and low temperature, so that the reliability is higher.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (6)
1. An intake filter screen for high and cold rail transit vehicle equipment, comprising: the device comprises a filter screen (3), a filter screen mounting seat (1) and a filter screen frame (2) fixedly arranged along the circumferential direction of the filter screen, wherein the filter screen mounting seat (1) is arranged at an air inlet of rail transit vehicle equipment through bolts; the filter screen mounting seat (1) is of a rectangular frame structure, the filter screen frame (2) is of a rectangular frame structure with the size smaller than that of the filter screen mounting seat (1), and the filter screen frame (2) can be inserted and pulled in the filter screen mounting seat (1);
the inner side of the filter screen frame (2) is also provided with a resistance wire (7) for heating after being electrified, and melting snow and ice formed on the surface of the filter screen;
The power supply circuit of the resistance wire (7) comprises: a power circuit breaker, a wind pressure switch, a temperature control switch and a resistance wire (7) which are connected in series; the resistance wire (7) is connected in series in the circuit through an outgoing line access point of the carbon block;
The power circuit breaker is arranged in an electric appliance cabinet in the vehicle and is used for realizing short-circuit protection of a circuit, and the circuit is disconnected after short circuit occurs;
The wind pressure switch is arranged in the air duct and is closed when the wind pressure is lower than a set value;
the temperature control switch is arranged in the air duct and is closed when the temperature is lower than a threshold value;
When the wind pressure switch and the temperature control switch are simultaneously closed, a circuit forms a loop, and the resistance wire generates electricity and heat; carbon blocks are respectively arranged at the left side and the right side of the filter screen mounting seat (1); the carbon block comprises an outgoing line access point (9) for connecting with a power supply circuit;
Copper inserts and insulating blocks are respectively arranged at the left side and the right side of the filter screen frame (2), and the copper inserts are used for being in contact with the carbon blocks to realize dynamic electrical connection; the insulating block is used for isolating the filter screen frame (2) and the copper insert;
The resistance wire (7) is connected in series between the two copper inserts; the carbon block is arranged on the filter screen mounting seat (1) through a coil spring; the carbon block is of a block-shaped structure, the carbon block is higher than the joint surface of the filter screen mounting seat (1) and the filter screen frame (2), and one surface of the block-shaped structure is a slope.
2. An intake screen for a high and cold rail transit vehicle installation according to claim 1, characterized in that the resistance wire (7) is arranged inside the screen.
3. The air inlet filter screen for the alpine rail transit vehicle equipment according to claim 1, wherein the left side and the right side of the filter screen mounting seat (1) are respectively provided with 1 positioning sliding groove for realizing the limit of the left direction and the right direction of the filter screen frame (2);
The front end of the filter screen mounting seat (1) is also provided with 1 positioning sliding groove for realizing forward limit of the filter screen frame (2).
4. The air inlet filter screen for the alpine rail transit vehicle equipment according to claim 1, wherein locking pins (4) are respectively arranged on the left side and the right side of the rear end of the filter screen mounting seat (1);
The left side and the right side of the rear end of the filter screen frame (2) are respectively provided with a lock pin positioning hole (8) which is used for realizing forward and backward limiting of the filter screen frame (2) by matching with the lock pins (4) after the filter screen frame (2) is completely inserted into the 3 positioning sliding grooves of the filter screen mounting seat (1).
5. An intake screen for a high and cold rail transit vehicle apparatus according to claim 1, wherein the screen mount (1) is made of an aluminum alloy or stainless steel material.
6. An intake screen for a high and cold rail transit vehicle apparatus according to claim 1, wherein the screen frame (2) is made of an aluminum alloy or stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210551787.5A CN115090048B (en) | 2022-05-18 | 2022-05-18 | Air inlet filter screen of high and cold rail transit vehicle equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210551787.5A CN115090048B (en) | 2022-05-18 | 2022-05-18 | Air inlet filter screen of high and cold rail transit vehicle equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115090048A CN115090048A (en) | 2022-09-23 |
| CN115090048B true CN115090048B (en) | 2024-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210551787.5A Active CN115090048B (en) | 2022-05-18 | 2022-05-18 | Air inlet filter screen of high and cold rail transit vehicle equipment |
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| CN (1) | CN115090048B (en) |
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