CN213101045U - Explosion-proof online self-cleaning filter - Google Patents

Explosion-proof online self-cleaning filter Download PDF

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Publication number
CN213101045U
CN213101045U CN202021002078.4U CN202021002078U CN213101045U CN 213101045 U CN213101045 U CN 213101045U CN 202021002078 U CN202021002078 U CN 202021002078U CN 213101045 U CN213101045 U CN 213101045U
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CN
China
Prior art keywords
filter screen
shell
explosion
cleaning
self
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Expired - Fee Related
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CN202021002078.4U
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Chinese (zh)
Inventor
王尧林
田钱军
王健
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Hangzhou Xiaoshan Technician College
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Hangzhou Xiaoshan Technician College
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Priority to CN202021002078.4U priority Critical patent/CN213101045U/en
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Abstract

An explosion-proof online self-cleaning filter comprises a shell, a filter screen assembly arranged in the shell and a cover body arranged at the top of the shell, wherein a liquid inlet communicated with the shell is fixed at the upper end of the side wall of the shell, a liquid outlet communicated with the inner cavity of the filter screen assembly is fixed at the lower end of the side wall of the shell, and a self-cleaning port communicated with the inner cavity of the filter screen assembly is also fixed at the lower end of the side wall of the shell; the bottom of the shell and the middle part of the side wall are both provided with sewage outlets communicated with the shell; an explosion-proof differential pressure sensor is installed in the shell, and two probes of the explosion-proof differential pressure sensor are respectively installed at the liquid inlet and the liquid outlet. The utility model can clean impurities in time and eliminate hidden troubles; the impurity removal is convenient, the time interval for cleaning the filter screen is prolonged, the filtering efficiency is improved, the labor cost is saved, and the labor intensity of workers is reduced; time and labor are saved, and the filtering effect and the cleaning efficiency are improved.

Description

Explosion-proof online self-cleaning filter
Technical Field
The utility model belongs to the technical field of the oil filters, concretely relates to explosion-proof online self-cleaning filter.
Background
The basket filter on the market is commonly used in oil or other liquid pipeline at present, impurity in the filter tube way, and this basket filter can not show the pressure differential on line, can't realize accurate maintenance, and the filter screen in the casing is blockked up the back by impurity, causes the big pressure drop of pipeline, and when the pressure drop reached the certain degree, need dismantle the filter, takes out the filter screen and clears up it, and working strength is big, and work efficiency is low, still has the potential safety hazard.
The inlet setting of current filter is in the inside of filter screen, and the liquid outlet setting is in the outside of filter screen, and impurity is attached to the inside at the filter screen, through setting up cleaning device in the inside of filter screen, carries out the cleanness of filter screen like brush hair or steel brush, and this structure is more complicated, need set up power unit and drive, occupation space, and is with high costs, has the phenomenon to oil secondary pollution.
Disclosure of Invention
For solving the above-mentioned problem that prior art exists, the utility model provides a be convenient for get rid of impurity has prolonged the time interval of clearance filter screen, has improved filtration efficiency, has saved the cost of labor, reduces workman intensity of labour's explosion-proof online self-cleaning filter.
The utility model adopts the technical proposal that:
the utility model provides an explosion-proof online self-cleaning filter, includes the casing, sets up filter screen subassembly in the casing, sets up the lid at the casing top, its characterized in that: a liquid inlet communicated with the shell is fixed at the upper end of the side wall of the shell, a liquid outlet communicated with the inner cavity of the filter screen assembly is fixed at the lower end of the side wall of the shell, and a self-cleaning port communicated with the inner cavity of the filter screen assembly and used for realizing positive pressure reverse flushing of the filter screen assembly is also fixed at the lower end of the side wall of the shell; the bottom of the shell and the middle part of the side wall are both provided with sewage outlets communicated with the shell; an explosion-proof differential pressure sensor is installed in the shell, and two probes of the explosion-proof differential pressure sensor are respectively installed at the liquid inlet and the liquid outlet. The utility model has the advantages of online display, automatic alarm function and the like by installing the explosion-proof differential pressure sensor, and can clean impurities in time and eliminate hidden danger; the liquid inlet is communicated with the shell, the liquid outlet is communicated with the filter screen to form an outer inlet and inner outlet type structure, impurities are directly deposited at the bottom of the shell after being filtered by the filter screen, the impurities are convenient to remove, the time interval for cleaning the filter screen is prolonged, the filtering efficiency is improved, the labor cost is saved, and the labor intensity of workers is reduced; be provided with from cleaning mouth and two upper and lower drain, inside through self-cleaning mouth flushing apparatus, go up the drain and can discharge the fibre class impurity of adhesion on the filter screen inside and outside wall, drain discharge solid impurity down need not to pull down the filter screen, and labour saving and time saving has improved filter effect and cleaning efficiency.
Further, the cover body comprises an upper flange cover and an upper flange, the upper flange is welded and fixed at the top end of the shell, and the upper flange cover is arranged on the upper flange and is in locking connection through bolts.
Further, an exhaust pipe communicated with the inner cavity of the shell is installed on the upper flange cover, and an exhaust valve is arranged on the exhaust pipe.
Further, the filter screen subassembly includes filter screen and cylindrical filter screen frame, the filter screen is fixed on the filter screen frame after curling.
Further, the filter screen subassembly adopts the birdcage structure, the filter screen includes two inside and outside airtight hole steel sheets, two welded fastening is respectively in the inside and outside of filter screen rack after the steel sheet curls.
Furthermore, the lower end of the filter screen is respectively provided with an insertion groove corresponding to the liquid outlet and the self-cleaning opening, and is fixed on the liquid outlet and the self-cleaning opening through the insertion groove.
Furthermore, a drain valve is fixedly arranged on each drain outlet.
Further, the diameter of the liquid inlet is the same as that of the liquid outlet, and the diameter of the self-cleaning port is smaller than that of the liquid inlet and that of the liquid outlet.
Further, flanges are welded on the liquid inlet, the liquid outlet and the self-cleaning port.
The utility model has the advantages that:
1. by installing the explosion-proof differential pressure sensor, the device has the advantages of online display, automatic alarm function and the like, and can clean impurities in time and eliminate hidden dangers;
2. the liquid inlet is communicated with the shell, the liquid outlet is communicated with the filter screen assembly to form an outer inlet and inner outlet type structure, impurities are filtered by the filter screen assembly and then directly sink to the bottom of the shell, so that the impurities are conveniently removed, the time interval for cleaning the filter screen is prolonged, the filtering efficiency is improved, the labor cost is saved, and the labor intensity of workers is reduced;
3. be provided with from cleaning mouth and two upper and lower drain, inside through self-cleaning mouth flushing apparatus, go up the drain and can discharge the fibre class impurity of adhesion on the filter screen inside and outside wall, drain discharge solid impurity down need not to pull down the filter screen, and labour saving and time saving has improved filter effect and cleaning efficiency.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-upper flange cover, 2-upper flange, 3-bolt, 4-shell, 5-liquid inlet, 6-liquid outlet, 7-self-cleaning port, 8-filter screen, 9-sewage outlet, 10-flange, 11-explosion-proof differential pressure sensor, 12-exhaust valve and 13-sewage valve.
Detailed Description
The present invention will be further described with reference to the following specific embodiments, but the present invention is not limited to these specific embodiments. It will be recognized by those skilled in the art that the present invention encompasses all alternatives, modifications, and equivalents as may be included within the scope of the claims.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1, the embodiment provides an explosion-proof online self-cleaning filter, including lid, casing 4, filter screen subassembly 8 and explosion-proof differential pressure sensor 11, the lid includes upper flange cover 1 and upper flange 2, and upper flange 2 welds on the top of casing 4, and upper flange cover 1 covers on upper flange 2, and through bolt 3 locking connection between upper flange cover 1 and the upper flange 2, and upper flange cover 1 top surface one side still fixed mounting has the blast pipe with casing inner chamber intercommunication, be provided with discharge valve 12 on the blast pipe.
This embodiment 4 lateral wall upper end of casing is fixed and is provided with inlet 5, 4 lateral wall lower extremes of casing are fixed and are provided with liquid outlet 6, 4 lateral wall lower extremes of casing still are fixed and are provided with the self-cleaning mouth 7 that realizes malleation back flush filter screen subassembly, 4 bottom one side of casing and 4 lateral wall middle part one side of casing are fixed and are provided with drain 9, inlet 5 and two drain 9 all communicate in with casing 4, liquid outlet 6 and self-cleaning mouth 7 all communicate with the inner chamber of filter screen subassembly 8, inside 4 is arranged in to filter screen subassembly 8, and the position that the lower extreme of filter screen subassembly 8 corresponds liquid outlet and self-cleaning mouth is equipped with the insertion groove respectively, and fix on liquid outlet 6 and self-cleaning mouth 7 through the. The diameters of the liquid inlet 5 and the liquid outlet 6 are the same, and the diameter of the self-cleaning port 7 is smaller than the diameters of the liquid inlet 5 and the liquid outlet 6. The liquid inlet 5, the liquid outlet 6 and the self-cleaning port 7 are all welded with flanges 10, and the fixed end covers seal the liquid inlet 5 and the liquid outlet 6 when the flanges 10 are used for pollution discharge; all fixed being equipped with blowoff valve 13 on two drain 9, blowoff valve 13 opens drain 9 when being used for the blowdown, closes drain 9 during the filtration.
This embodiment explosion-proof differential pressure sensor 11 installs in casing 4, adopts the explosion-proof differential pressure sensor of TL3007, two probes of explosion-proof differential pressure sensor 11 are installed respectively in inlet 5 and liquid outlet 6 department.
In addition, this embodiment filter screen subassembly 8 includes filter screen and cylindrical filter screen frame, the filter screen is fixed on the filter screen frame after curling. Filter screen subassembly 8 adopts the birdcage structure, the filter screen includes two inside and outside closed hole steel sheets, two welded fastening is respectively outside in filter screen rack after the steel sheet curls. Because the filter screen component 8 adopts the birdcage structural design, the steel plates with two densely distributed holes inside and outside are welded on the filter screen frame after being curled, so the filter screen can not be damaged by the large pressure of the medium in the self-cleaning process.
The utility model discloses the theory of operation: when the medium flows into the shell 4 from the liquid inlet 5, part of impurities are adhered to the outer surface of the filter screen assembly 8, part of impurities are deposited at the bottom of the shell 4, and the pure medium flows out of the liquid outlet 6 to achieve the purpose of filtering, wherein the self-cleaning port 7 is sealed; when impurities on the outer surface of the filter screen assembly 8 are accumulated to a certain degree, the explosion-proof differential pressure sensor 11 displays that the pressure difference is large to influence the normal operation of the pipeline, the machine is stopped, a self-cleaning flow is started, and the filter screen assembly 8 is cleaned.
A self-cleaning process: sealing the liquid inlet 5 and the liquid outlet 6, opening the exhaust valve 12 for exhausting, opening the blow-down valve 13, opening the self-cleaning port 7, inputting pure media from the self-cleaning port 7, discharging the liquid media and impurities in the shell 4 through the blow-down valve 13, injecting the liquid media and the impurities into a dirty oil pool, continuously flushing for half a minute to 1 minute when the liquid flows out of the blow-down valve 13 at the upper end of the shell 4, and stopping infusion, thus finishing the whole self-cleaning process.
The utility model has the advantages of online display, automatic alarm function and the like by installing the explosion-proof differential pressure sensor 11, and can clean impurities in time and eliminate hidden troubles; the liquid inlet 5 is communicated with the shell 4, the liquid outlet 6 is communicated with the inner cavity of the filter screen assembly 8 to form an outer inlet and inner outlet structure, impurities are directly deposited at the bottom of the shell 4 after being filtered by the filter screen assembly 8, the impurities are convenient to remove, the time interval for cleaning the filter screen is prolonged, the filtering efficiency is improved, the labor cost is saved, and the labor intensity of workers is reduced; be provided with from cleaning outlet 7 and two upper and lower drain 9, inside through 7 flushing device of self-cleaning outlet, the fibre class impurity of adhesion on the filter screen inside and outside wall can be discharged to the upper drain, and drain discharge solid impurity need not to pull down the filter screen, and labour saving and time saving has improved filter effect and cleaning efficiency.
It should be noted that the above embodiments can be freely combined as necessary. The foregoing has been a detailed description of the preferred embodiments and principles of the present invention, and it will be apparent to those skilled in the art that variations may be made in the specific embodiments based on the concepts of the present invention, and such variations are considered as within the scope of the present invention.

Claims (9)

1. The utility model provides an explosion-proof online self-cleaning filter, includes the casing, sets up filter screen subassembly in the casing, sets up the lid at the casing top, its characterized in that: a liquid inlet communicated with the shell is fixed at the upper end of the side wall of the shell, a liquid outlet communicated with the inner cavity of the filter screen assembly is fixed at the lower end of the side wall of the shell, and a self-cleaning port communicated with the inner cavity of the filter screen assembly and used for realizing positive pressure reverse flushing of the filter screen assembly is also fixed at the lower end of the side wall of the shell; the bottom of the shell and the middle part of the side wall are both provided with sewage outlets communicated with the shell; an explosion-proof differential pressure sensor is installed in the shell, and two probes of the explosion-proof differential pressure sensor are respectively installed at the liquid inlet and the liquid outlet.
2. An explosion-proof online self-cleaning filter according to claim 1, characterized in that: the cover body comprises an upper flange cover and an upper flange, the upper flange is welded and fixed at the top end of the shell, and the upper flange cover is arranged on the upper flange and is connected with the upper flange through bolts in a locking mode.
3. An explosion-proof online self-cleaning filter according to claim 2, characterized in that: the upper flange cover is provided with an exhaust pipe communicated with the inner cavity of the shell, and the exhaust pipe is provided with an exhaust valve.
4. An explosion-proof online self-cleaning filter according to claim 1, characterized in that: the filter screen subassembly includes filter screen and cylindrical filter screen frame, the filter screen is fixed on the filter screen frame after curling.
5. An explosion-proof online self-cleaning filter according to claim 4, wherein: the filter screen subassembly adopts the birdcage structure, the filter screen includes two inside and outside closed hole steel sheets, two welded fastening is respectively outside in filter screen rack after the steel sheet curls.
6. An explosion-proof online self-cleaning filter according to claim 1, characterized in that: and the lower end of the filter screen is respectively provided with an insertion groove corresponding to the liquid outlet and the self-cleaning opening, and is fixed on the liquid outlet and the self-cleaning opening through the insertion grooves.
7. An explosion-proof online self-cleaning filter according to claim 1, characterized in that: and a drain valve is fixedly arranged on each drain outlet.
8. An explosion-proof online self-cleaning filter according to claim 1, characterized in that: the diameter of the liquid inlet is the same as that of the liquid outlet, and the diameter of the self-cleaning port is smaller than that of the liquid inlet and that of the liquid outlet.
9. An explosion-proof online self-cleaning filter according to claim 1, characterized in that: and flanges are welded on the liquid inlet, the liquid outlet and the self-cleaning port.
CN202021002078.4U 2020-06-04 2020-06-04 Explosion-proof online self-cleaning filter Expired - Fee Related CN213101045U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021002078.4U CN213101045U (en) 2020-06-04 2020-06-04 Explosion-proof online self-cleaning filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021002078.4U CN213101045U (en) 2020-06-04 2020-06-04 Explosion-proof online self-cleaning filter

Publications (1)

Publication Number Publication Date
CN213101045U true CN213101045U (en) 2021-05-04

Family

ID=75669943

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021002078.4U Expired - Fee Related CN213101045U (en) 2020-06-04 2020-06-04 Explosion-proof online self-cleaning filter

Country Status (1)

Country Link
CN (1) CN213101045U (en)

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Granted publication date: 20210504

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