CN113058308A - Filtering device for rail transit cooling system - Google Patents
Filtering device for rail transit cooling system Download PDFInfo
- Publication number
- CN113058308A CN113058308A CN202110447438.4A CN202110447438A CN113058308A CN 113058308 A CN113058308 A CN 113058308A CN 202110447438 A CN202110447438 A CN 202110447438A CN 113058308 A CN113058308 A CN 113058308A
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- Prior art keywords
- filter
- filter screen
- cooling liquid
- cover
- filter body
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- 238000001816 cooling Methods 0.000 title claims abstract description 20
- 238000001914 filtration Methods 0.000 title claims abstract description 20
- 239000000110 cooling liquid Substances 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 230000003014 reinforcing effect Effects 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 6
- 239000002826 coolant Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 230000002708 enhancing effect Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000283984 Rodentia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
- B01D29/035—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting with curved filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
- B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/001—Filters in combination with devices for the removal of gas, air purge systems
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention provides a filtering device for a rail transit cooling system, which comprises a filter cover, a filter screen assembly and a filter body, wherein the filter cover is arranged on the filter body; the filter cover is arranged at the upper end of the filter body and used for limiting and fixing the filter screen assembly; the filter screen assembly comprises a first filter screen and a second filter screen, the first filter screen and the second filter screen are arranged into arc-shaped structures which are mutually attached, and cooling liquid flows in from the inner arc end and flows out from the outer arc end, so that the cooling liquid is filtered; the filter body is provided with a cavity for mounting a filter screen assembly and a connecting end for connecting with a water inlet pipe and a water outlet pipe of a cooling system, cooling liquid flows into the filter body from the water inlet pipe, flows into the filter body from the inner arc end and flows out from the outer arc end of the two filter screens to filter the cooling liquid, and then flows out from the water outlet pipe.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a filtering device for a rail transit cooling system.
Background
In the prior art, a cooling system of core components such as a traction converter, a transformer, a permanent magnet traction motor, a diesel engine and an air compressor of a conventional vehicle is used for preventing impurities of the cooling system from entering a cooling object and preventing the internal part of the system from being blocked to cause cooling failure. In the prior art, the cooling system filters of railway vehicle traction converters and transformers are generally filters of Y-shaped configuration, with which the following drawbacks apply: 1. the cleaning cycle of the filter screen is too frequent, and the workload is large; 2. drainage and water addition are needed in the cleaning process of the filter screen, so that the difficulty is high, the maintenance is inconvenient, and the control is difficult; 3. the maintenance time is long.
Disclosure of Invention
The invention aims to provide a filtering device for a rail transit cooling system, which is convenient to install and maintain.
In order to achieve the above object, the present invention provides a filter device for a rail transit cooling system, comprising a filter cover, a filter screen assembly and a filter body; the filter cover is arranged on the filter body and used for limiting and fixing the filter screen assembly; the filter screen assembly comprises a first filter screen and a second filter screen, the first filter screen and the second filter screen are arranged into arc-shaped structures which are mutually attached, and cooling liquid flows in from the inner arc end and flows out from the outer arc end, so that the cooling liquid is filtered; the filter body is provided with a cavity for installing the filter screen assembly and a connecting end for connecting the water inlet pipe and the water outlet pipe of the cooling system, and cooling liquid flows in from the water inlet pipe and flows out from the water outlet pipe after being filtered through the filter screen assembly, so that the cooling liquid is filtered.
Preferably, the first filter screen is a 150-mesh steel wire filter screen with the aperture of 1.0 mm; the second filter screen sets up to 30 meshes, the aperture is 1.6 mm's steel wire filter screen, and the coolant liquid flows in, flows from first filter screen from the second filter screen to the realization is from thick to smart filtration to the coolant liquid.
Preferably, the filter screen assembly further comprises a reinforcing plate, a reinforcing rib and a pocket bottom part; the reinforcing plate is respectively and simultaneously connected with the first filter screen and the second filter screen and is used for enhancing the strength of the filter screen assembly; the two reinforcing ribs are respectively and simultaneously connected with the first filter screen and the second filter screen and used for enhancing the strength of the filter screen assembly; pocket bottom sets up to the character cut in bas-relief structure, and its bottom medial surface is connected simultaneously with the lower terminal surface of first filter screen and second filter screen respectively for the intensity of reinforcing filter screen subassembly realizes preserving remaining impurity in the coolant liquid simultaneously.
Preferably, the bottom of the pocket bottom is provided with a through hole for the coolant to flow out, and the diameter of the through hole is set to be 0.2mm-2 mm.
Preferably, the cavity side wall of the filter body is further provided with two limiting grooves, the two limiting grooves are respectively arranged in a one-to-one manner with the reinforcing ribs and used for limiting the position of the filter screen assembly arranged on the cavity of the filter body through the matching with the reinforcing ribs.
Preferably, the lower terminal surface of filter lid is equipped with the boss and sets up the draw-in groove on the boss, be equipped with the locking groove on the filter body, the locking groove sets up to the shape structure of perpendicular to, just be equipped with the 0.5mm installation clearance of being convenient for operating personnel loading and unloading between draw-in groove and the locking groove, the draw-in groove is packed into and is made its horizontal end department of arranging the locking groove in through rotatory behind the vertical end of locking groove, realizes the locking to filter equipment.
Preferably, the filter cover further includes a mark on an upper end surface thereof for identifying a direction of an opening or closing rotation between the filter cover and the filter body.
As a further scheme of the invention: the filtering device for the rail transit cooling system further comprises an exhaust joint, wherein the exhaust joint is mounted on the filter cover, an exhaust hole for exhausting is formed in the exhaust joint along the central axis, and the exhaust hole is communicated with the cavity of the filter body and used for exhausting redundant gas in the filter body.
Preferably, a sealing ring for sealing is further arranged between the filter cover and the filter body, and an installation groove for installing the sealing ring is arranged at the connecting end of the filter body and the filter cover.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the invention, the filter screen assembly is set to be of a structure consisting of two filter screens arranged in parallel, the cooling liquid is filtered twice, and the two filter screens are set to be of arc structures attached to each other, so that the cooling liquid flows in from the inner arc end and flows out from the outer arc end, and the resistance of the cooling liquid passing through the filter under different flow rates is reduced while the filtering effect of the cooling liquid is ensured.
(2) According to the invention, the two vertical ends of the two filter screens are respectively provided with the reinforcing ribs, so that the filter screens are accurately positioned in the filter body, the rigidity strength of the filter screen assembly is enhanced, the supporting strength of the filter assembly is effectively ensured in the installation and use processes of the filter assembly, and the filter assembly is prevented from being greatly deformed when being impacted by water power.
(3) According to the invention, the reinforcing plate is arranged on the upper end surfaces of the two filters, and the plurality of through holes are formed in the reinforcing plate, so that the weight of the reinforcing plate is reduced, and meanwhile, the liquid state conduction is realized through the through connection with the exhaust joint.
(4) According to the invention, the pocket bottom plate is arranged at the lower ends of the two filter screens, and the plurality of through holes are formed in the bottom plate of the pocket bottom plate, so that the impurities left after the filter screens are filtered can be stored, and meanwhile, when the filter screen assembly is taken out during maintenance, the impurities are left in the pocket bottom plate while cooling liquid can leak from the through holes, so that the waste of the cooling liquid in the filter screen assembly due to replacement is reduced.
(5) In the invention, two filter screens are respectively arranged into the filter screens at the water-facing ends, and the filter screens with 30 meshes and the apertures of
The filter screen at the back water end adopts 150 meshes with the aperture of
The steel wire mesh is used for ensuring the filtering effect on the cooling liquid.
(6) According to the filter device, the filter cover and the filter body are fixed in a rodent manner by adopting the clamping grooves and the locking grooves, so that accidents caused by misoperation of an operator in the operation process of the filter device are prevented; and through keeping 0.5 mm's installation clearance between locking groove and the draw-in groove to filter lid 4's dismouting and equipment in the maintenance process are convenient for.
(7) In the invention, the upper end face of the filter cover is provided with remarkable 'opening' and 'closing' and marks for displaying the opening and closing directions, so that the operation of an operator is facilitated.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic cross-sectional view of the overall structure of the present invention;
FIG. 2 is an axial view of the filter screen of the present invention;
FIG. 3 is a schematic cross-sectional view of a transition web of the present invention;
FIG. 4 is an enlarged view of portion A of FIG. 3 according to the present invention;
FIG. 5 is an axial schematic view of a filter cover according to the present invention;
FIG. 6 is an axial view of the filter body of the present invention;
FIG. 7 is a schematic diagram of the axial explosion test of the present invention with the integral structure connected to the water inlet pipe and the water outlet pipe.
Wherein:
1. the filter comprises a pipeline, 2, an exhaust connector, 3, a filter cover, 3-1, a boss, 3-2, a clamping groove, 4, a filter screen assembly, 4-1, a first filter screen, 4-2, a reinforcing plate, 4-3, a reinforcing rib, 4-4, a pocket bottom, 4-5, a second filter screen, 5, a sealing ring, 6, a filter body, 6-1, a cavity, 6-2, a locking groove, 6-3, a limiting groove, 6-4, a mounting groove, 6-5, a first connecting end, 6-6 and a second connecting end.
Detailed Description
In order to make the aforementioned objects, features, advantages, and the like of the present invention more clearly understandable, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the drawings of the present invention are simplified and are not to precise scale, and are provided for convenience and clarity in assisting the description of the embodiments of the present invention; the several references in this disclosure are not limited to the particular numbers in the examples of the figures; the directions or positional relationships indicated by ' front ' middle, ' rear ' left ', right ', upper ', lower ', top ', bottom ', middle ', etc. in the present invention are based on the directions or positional relationships shown in the drawings of the present invention, and do not indicate or imply that the devices or components referred to must have a specific direction, nor should be construed as limiting the present invention.
In this embodiment:
referring to fig. 1 to 7, the filter device for a rail transit cooling system provided by the invention comprises an exhaust joint 2, a filter cover 3, a filter screen assembly 4, a sealing ring 5 and a filter body 6;
the exhaust joint 2 is arranged on the filter cover 3, an exhaust hole which is arranged in a penetrating way is arranged on the exhaust joint 2 along the central axis, and the exhaust hole is in penetrating connection with a cavity 6-1 arranged on the filter body 6 so as to realize the discharge of redundant gas in the filter body 6.
The filter cover 3 is mounted on the filter body 6 and sealed by a seal ring 5 mounted in a mounting groove 6-4 of the filter body 6, and meanwhile, locking and positioning between the filter cover 3 and the filter body 6 are realized by matching a boss 3-1 arranged on the lower end surface of the filter cover 3 and a clamping groove 3-2 arranged on the boss 3-1 with a locking groove 6-2 on the filter body 6.
Preferably, in order to facilitate the operator to lock or unlock the filter cover 3 by rotating, an opening/closing mark and a mark for identifying the opening/closing direction are further provided on the upper end surface of the filter cover 3.
The filter screen assembly 4 is arranged in a cavity 6-1 of the filter body 6, the filter screen assembly 4 comprises a first filter screen 4-1, a reinforcing plate 4-2, a reinforcing rib 4-3, a pocket bottom 4-4 and a second filter screen 4-5, the first filter screen 4-1 and the second filter screen 4-5 are respectively arranged in an arc structure and are arranged in parallel, and cooling liquid flows in from the second filter screen 4-5 and flows out from the first filter screen 4-1 to realize filtering; the reinforcing plate 4-2 is respectively and simultaneously connected with the upper end surfaces of the first filter screen 4-1 and the second filter screen 4-5, so that the strength of the filter screen component 4 is enhanced, and the lower surface of the boss 3-1 of the filter cover 3 is matched for limiting; the two reinforcing ribs 4-3 are preferably arranged and are respectively and simultaneously connected with the two vertical end faces of the first filter screen 4-1 and the second filter screen 4-5, so that the strength of the filter screen assembly 4 is enhanced, and the reinforcing ribs are matched with the limiting grooves 6-3 arranged on the side wall of the cavity 6-1 of the filter body 6 to realize limiting and fixing; the bottom 4-4 of the bag is arranged to be of a concave structure, the inner side surface of the bottom of the bag is simultaneously connected with the lower end surfaces of the first filter screen 4-1 and the second filter screen 4-5 respectively, and is provided with through holes with the diameter of 0.2mm-2mm, so that the cooling liquid can flow out of the through holes when the filter screen assembly 4 is replaced while impurities filtered by the first filter screen 4-1 and the second filter screen 4-5 are stored, and the waste of the cooling liquid is avoided.
Preferably, for better realization of filtering the cooling liquid, the first filter screen 4-1 adopts a 150-mesh steel wire filter screen with a pore size of 1.6mm, and the second filter screen 4-5 adopts a 30-mesh steel wire filter screen with a pore size of 1.0 mm.
Preferably, in order to better realize the discharge of the redundant gas inside the filter body 6, a plurality of through holes are arranged on the reinforcing plate 4-2.
Preferably, in order to connect the filter body 6 with the pipeline 1, the filter body 6 is further provided with a first connecting end 6-5 and a second connecting end 6-6 so as to be connected with the water inlet pipeline and the water outlet pipeline.
The installation of the filtering device is as follows: the filter screen assembly 4 is arranged in the cavity 6-1 of the filter body 6, the sealing ring 5 is arranged in the mounting groove 6-3, and finally the filter cover 3 is arranged on the filter body 6 and is locked and fixed by rotating the filter cover 3.
The connection between the filtering device and the cooling system is as follows: the first connecting end 6-5 of the filter body 6 is fixedly connected with the water inlet pipe of the cooling system in a welding mode, and the second connecting end 6-6 of the filter body 6 is fixedly connected with the water outlet pipe of the cooling system in a welding mode.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A filter equipment for rail transit cooling system characterized in that: comprises a filter cover (3), a filter screen component (4) and a filter body (6);
the filter cover (3) is arranged on the filter body (6) and used for limiting and fixing the filter screen assembly (4);
the filter screen assembly (4) comprises a first filter screen (4-1) and a second filter screen (4-5), the first filter screen (4-1) and the second filter screen (4-5) are arranged into arc structures which are mutually attached, cooling liquid flows in from the inner arc end and flows out from the outer arc end, and the cooling liquid is filtered;
the filter body (6) is provided with a cavity (6-1) for installing the filter screen component (4) and a connecting end for connecting the water inlet pipe and the water outlet pipe of the cooling system, cooling liquid flows in from the water inlet pipe and flows out from the water outlet pipe after being filtered by the filter screen component (4), and the cooling liquid is filtered.
2. The filtration device of claim 1, wherein: the first filter screen (4-5) is a steel wire filter screen with 150 meshes and the aperture of 1.0 mm; the second filter screen (4-1) is set to be a 30-mesh steel wire filter screen with the aperture of 1.6mm, and cooling liquid flows in from the second filter screen (4-5) and flows out from the first filter screen (4-1) so as to realize the filtration of the cooling liquid from coarse to fine.
3. The filtration device of claim 1, wherein: the filter screen assembly (4) further comprises a reinforcing plate (4-2), a reinforcing rib (4-3) and a bag bottom (4-4);
the reinforcing plate (4-2) is respectively and simultaneously connected with the first filter screen (4-1) and the second filter screen (4-5) and is used for enhancing the strength of the filter screen assembly (4);
the two reinforcing ribs (4-3) are respectively and simultaneously connected with the first filter screen (4-1) and the second filter screen (4-5) and used for enhancing the strength of the filter screen assembly (4);
pocket bottom (4-4) set up to the character cut in bas-relief structure, and its bottom medial surface is connected simultaneously with the lower terminal surface of first filter screen (4-1) and second filter screen (4-5) respectively for the intensity of reinforcing filter screen subassembly (4) realizes preserving remaining impurity in the coolant liquid simultaneously.
4. A filter arrangement according to claim 3 wherein: the bottom of the pocket bottom (4-4) is provided with a through hole for cooling liquid to flow out, and the diameter of the through hole is set to be 0.2mm-2 mm.
5. The filtration device of claim 4, wherein: the filter is characterized in that a limiting groove (6-3) is further formed in the side wall of the cavity (6-1) of the filter body (6), two limiting grooves (6-3) are arranged and are respectively arranged with the reinforcing ribs (4-3) in a one-to-one mode, and the limiting groove is used for limiting the position, on the cavity (6-1) of the filter body (6), of the filter screen assembly (4) through matching with the reinforcing ribs (4-3).
6. The filtration device of claim 1, wherein: the filter is characterized in that a boss (3-1) and a clamping groove (3-2) are arranged on the lower end face of the filter cover (3), the clamping groove (3-2) is formed in the boss (3-1), a locking groove (6-2) is formed in the filter body (6), the locking groove (6-2) is of an inverted T-shaped structure, a 0.5mm installation gap convenient for operators to mount and dismount is formed between the clamping groove (3-2) and the locking groove (6-2), and the clamping groove (3-2) is arranged at the horizontal end of the locking groove (6-2) after being mounted at the vertical end of the locking groove (6-2) and then rotated, so that the filter device (3) is locked.
7. The filtration device of claim 5, wherein: the upper end surface of the filter cover (3) is also provided with a mark for identifying the direction of the opening or closing rotation direction between the filter cover (3) and the filter body (6).
8. A filter device according to any one of claims 1-7, wherein: the filter is characterized by further comprising an exhaust joint (2), wherein the exhaust joint (2) is installed on the filter cover (3), an exhaust hole for exhausting is formed in the exhaust joint along the central axis, and the exhaust hole is communicated with the cavity (6-1) of the filter body (6) and used for exhausting redundant gas in the filter body (6).
9. The filtration device of claim 8, wherein: a sealing ring (5) for sealing is further arranged between the filter cover (3) and the filter body (6), and an installation groove (6-4) for installing the sealing ring (5) is formed in the connecting end of the filter body (6) and the filter cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110447438.4A CN113058308B (en) | 2021-04-25 | 2021-04-25 | Filtering device for rail transit cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110447438.4A CN113058308B (en) | 2021-04-25 | 2021-04-25 | Filtering device for rail transit cooling system |
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| Publication Number | Publication Date |
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| CN113058308A true CN113058308A (en) | 2021-07-02 |
| CN113058308B CN113058308B (en) | 2022-06-03 |
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| CN202110447438.4A Active CN113058308B (en) | 2021-04-25 | 2021-04-25 | Filtering device for rail transit cooling system |
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| CN2320311Y (en) * | 1998-04-23 | 1999-05-26 | 张会军 | Vertical dirt remover with movable filter screen |
| CN103007618A (en) * | 2011-09-21 | 2013-04-03 | 启东启控消声设备有限公司 | Improved straight through type filter |
| CN103083973A (en) * | 2011-11-05 | 2013-05-08 | 海门市大生水处理设备（厂）有限公司 | Air-liquid pipeline filter |
| CN204815908U (en) * | 2015-08-23 | 2015-12-02 | 郑心怡 | Y type filter |
| CN105332766A (en) * | 2015-10-29 | 2016-02-17 | 刘洋 | Energy-saving and environment-friendly gas exhausting and purifying device |
| CN206543452U (en) * | 2017-03-13 | 2017-10-10 | 潍坊裕川机械有限公司 | Novel pipeline filter |
| CN107035728A (en) * | 2017-04-10 | 2017-08-11 | 青岛海尔滚筒洗衣机有限公司 | A kind of bull pump filter core and bull pump |
| CN107630776A (en) * | 2017-08-30 | 2018-01-26 | 蚌埠市同升滤清器有限公司 | Spherical cleaner in one kind |
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| CN208480494U (en) * | 2018-06-07 | 2019-02-12 | 清远职业技术学院 | A kind of circulating filtration aquarium |
| CN208719682U (en) * | 2018-07-07 | 2019-04-09 | 河北海乾威钢管有限公司 | A kind of pearlitic heat resistant steel pipe |
| CN209885436U (en) * | 2019-03-05 | 2020-01-03 | 天津歌瑞和谐制药机械设备有限公司 | High efficiency filter for pill drier |
| CN210583934U (en) * | 2019-06-21 | 2020-05-22 | 天津天化科威水处理技术有限公司 | Pipeline type sewage treatment device |
| CN110657296A (en) * | 2019-09-29 | 2020-01-07 | 李河 | Reducing two-way pipe joint |
| CN210934026U (en) * | 2019-10-21 | 2020-07-07 | 昆明理工大学 | A sewage recovery unit for washing ore deposit |
| CN210714988U (en) * | 2019-10-22 | 2020-06-09 | 江阴天田容器制造有限公司 | Compressor oil separator with two layers of filter screens |
| CN110939803A (en) * | 2019-12-17 | 2020-03-31 | 刘永海 | Pipeline fixing device of removable filter plate based on airtight principle |
| CN211963295U (en) * | 2020-03-24 | 2020-11-20 | 山东磐金锻造机械有限公司 | Recirculated cooling water filter |
| CN111701482A (en) * | 2020-06-27 | 2020-09-25 | 苏波 | Sewage detection and treatment device |
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