CN109173453B - Constant pressure exhaust filter - Google Patents
Constant pressure exhaust filter Download PDFInfo
- Publication number
- CN109173453B CN109173453B CN201811203063.1A CN201811203063A CN109173453B CN 109173453 B CN109173453 B CN 109173453B CN 201811203063 A CN201811203063 A CN 201811203063A CN 109173453 B CN109173453 B CN 109173453B
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- Prior art keywords
- blind hole
- conical
- hole
- vent pipe
- plug
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- 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
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
- B01D46/64—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially
-
- 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
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/181—Preventing generation of dust or dirt; Sieves; Filters
- B01F35/187—Preventing generation of dust or dirt; Sieves; Filters using filters in mixers, e.g. during venting
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a constant-pressure exhaust filter, which comprises an air duct with one closed end, wherein a plurality of conical holes are formed in one side of the air duct close to the closed end along the radial direction of the air duct, conical plugs are matched in the conical holes, the conical plugs and the small ends of the conical holes face the inside of the air duct, a pressure relief spring is connected to the large end face of each conical plug, and the axis of the pressure relief spring is coaxial with the axis of the conical plug; the outer part of the vent pipe, which is provided with the conical hole, is also sleeved with a cylindrical tubular outer sleeve, and the two ends of the outer sleeve are in seamless connection with the outer wall of the vent pipe. The constant-pressure exhaust filter can realize gas emission and preliminary cleaning filtration under set pressure, and is economical and applicable.
Description
Technical Field
The invention belongs to the technical field of filtration, and particularly relates to a device for exhausting and primarily filtering under a certain pressure.
Background
In actual production, need carry out the exhaust when agitator tank inside atmospheric pressure reaches a definite value, prevent the explosion, and because can bring out pollutants such as a lot of smoke and dust granules when exhausting, consequently, generally need connect the relief valve earlier, connect the filter again, and the structure is complicated, and to this kind of extensive type production facility of agitator tank, neither practical nor uneconomic.
Disclosure of Invention
The invention aims to solve the technical problems and provides a constant-pressure exhaust filter which can realize gas discharge and preliminary clean filtration under set pressure and is economical and applicable.
The technical scheme of the invention is as follows:
a constant-pressure exhaust filter comprises an air duct with one closed end, wherein a plurality of conical holes are formed in one side, close to the closed end, of the air duct along the radial direction of the air duct, conical plugs are matched in the conical holes, the small ends of the conical plugs and the conical holes face the inside of the air duct, a pressure relief spring is connected to the large end face of each conical plug, and the axis of the pressure relief spring is coaxial with the axis of the conical plug;
the outer part of the vent pipeline provided with the conical hole is also sleeved with a cylindrical tubular outer sleeve, two ends of the outer sleeve are in seamless connection with the outer wall of the vent pipeline, so that the vent pipeline provided with the conical hole is wrapped by the outer sleeve, the free end of the pressure relief spring is in smooth contact with the inner wall of the outer sleeve, the conical plug blocks the conical hole when the air pressure in the vent pipeline is not at a preset value, and the pressure relief spring is compressed to release the conical plug from the conical hole when the air pressure in the vent pipeline reaches the preset value;
the side wall of the jacket is also provided with a plurality of filtering and exhausting holes for filtering and exhausting,
the conical holes and the conical plugs are uniformly provided with a plurality of circles of cones at intervals along the axial direction of the vent pipe, each circle of conical holes takes a point on the axial line of the vent pipe as a center to form a circular array,
the free end of the pressure relief spring is connected with an arc tile-shaped sliding plate which can be smoothly and seamlessly contacted with the inner wall of the outer sleeve,
the closed end of the vent pipe is closed by a cylindrical plug, an n-shaped support is arranged at the port part of the vent pipe where the cylindrical plug is positioned, the open end of the support is fixed at the periphery of the port, a threaded hole is formed in the center of a horizontal cross beam of the support, a closed screw rod is screwed into the threaded hole towards the cylindrical plug, a circular ring plate is arranged at the part of the closed screw rod screwed into the opening of the support, a closed spring is coaxially arranged on the end surface of the circular ring plate towards the cylindrical plug, the free end of the closed spring is in contact with the end surface of the cylindrical plug to jack the cylindrical plug into the vent pipe and close the corresponding port of the vent pipe,
every three of row's hole is a set of to strain, and every group strains the row's hole and includes blind hole in outer blind hole, the first interior blind hole, the second, wherein, outer blind hole be with the outside UNICOM's of overcoat blind hole, blind hole is two blind holes with the inside UNICOM of overcoat in first interior blind hole and the second, strain the row's hole and all follow the radial setting of overcoat, blind hole intercommunication in first interior blind hole and the second between the blind hole and respectively with outer blind hole and second in the blind hole in first.
Furthermore, vertical downward sunken collecting grooves are formed in the side walls of the bottoms of the first inner blind holes and the second inner blind holes, the cross section of each collecting groove of each first inner blind hole is U-shaped, the cross section of each collecting groove of each second inner blind hole is in a right-angle trapezoidal shape, and the inclined plane of each collecting groove deviates from the bottom of each hole.
Furthermore, the surface of the second inner blind hole close to the bottom of the second inner blind hole and the upward side wall is an inclined surface, and the inclined surface inclines towards one side of a vertical channel between the second inner blind hole and the first inner blind hole and is communicated with the vertical channel.
Furthermore, an arc-shaped cover is covered above the interface at the intersection of the vertical channel and the first inner blind hole, the cover bends towards the inlet end of the first inner blind hole, and the circle center of the cover is located at the circle center of the interface.
Furthermore, the outer part of the outer sleeve is covered with a dust filtering cloth bag.
The invention has the beneficial effects that: according to the constant-pressure exhaust filter, the vent pipeline is arranged for ventilation, the conical plug is jacked open when the entering airflow reaches the set pressure, then the airflow flows into the outer sleeve through the gap between the conical plug and the conical hole and flows out through the filtering and exhausting hole of the outer sleeve, exhaust under the rated pressure is realized, and dregs such as smoke dust particles and the like are preliminarily filtered out, so that the constant-pressure exhaust filter can realize gas exhaust and preliminary clean filtration under the set pressure, and is economical and applicable.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic view of the present invention provided with a cylindrical plug.
Fig. 3 is a schematic view of a conical plug provided with a slide plate.
Fig. 4 is a schematic view of the filter row holes at II.
Element number description: the device comprises an air duct 21, an outer sleeve 22, a conical plug 23, a pressure relief spring 24, a filtering hole 25, a dust filtering cloth bag 26, a sliding plate 27, a cylindrical plug 28, a sealing spring 29, a circular ring plate 30, a sealing screw 31, a support 32, an outer blind hole 33, a first inner blind hole 34, a second inner blind hole 35, a collecting tank 36 and a vertical channel 37.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in fig. 1 to 3, a constant pressure exhaust filter includes an air duct 21 with a closed end, a plurality of conical holes are radially arranged on one side of the air duct 21 close to the closed end, a conical plug 23 is fitted in the conical holes, the conical plug 23 and the small end of the conical hole face the inside of the air duct 21, a pressure relief spring 24 is connected to the large end face of the conical plug 23, and the axis of the pressure relief spring 24 is coaxial with the axis of the conical plug 23.
A cylindrical tubular outer sleeve 22 is sleeved outside the part of the vent pipeline 21 provided with the conical hole, two ends of the outer sleeve 22 are connected with the outer wall of the vent pipeline 21 in a seamless mode, so that the vent pipeline 21 provided with the conical hole is wrapped by the outer sleeve 22, the free end of the pressure relief spring 24 is in smooth contact with the inner wall of the outer sleeve 22, the conical plug 23 blocks the conical hole when the air pressure in the vent pipeline 21 does not reach a preset value, and the pressure relief spring 24 is compressed when the air pressure in the vent pipeline 21 reaches the preset value so that the conical plug 23 is loosened from the conical hole. A plurality of filter discharge holes 25 for filtering and discharging air are also arranged on the side wall of the outer sleeve 22.
When the filter is used, the ventilation pipeline 21 is arranged for ventilation, the conical plug 23 is pushed open when the entering airflow reaches a set pressure, then the airflow flows into the outer sleeve 22 through the gap between the conical plug 23 and the conical hole, and flows out through the filtering and discharging hole 25 of the outer sleeve 22, so that exhaust under a rated pressure is realized, and dregs such as certain smoke dust particles are filtered preliminarily.
The conical hole and the conical plug 23 are provided with a plurality of circles of cones uniformly at intervals along the axial direction of the vent pipe 21, and each circle of conical hole is in a circular array by taking a point on the axial line of the vent pipe 21 as a center, so that the constant-pressure exhaust effect can be greatly improved.
The free end of the pressure relief spring 24 is connected with an arc tile-shaped sliding plate 27, and the sliding plate 27 can be in smooth and seamless contact with the inner wall of the outer sleeve 22, so that the pressure relief spring 24 can better play a role.
The closed end of the vent pipe 21 is closed by a cylindrical plug 28, a support 32 in an n-shaped shape is arranged at a port part of the vent pipe 21 where the cylindrical plug 28 is located, the open end of the support 32 is fixed on the periphery of the port, a threaded hole is formed in the center of a horizontal cross beam of the support 32, a sealing screw 31 is screwed into the threaded hole towards the cylindrical plug 28, an annular plate 30 is arranged at the part, screwed into the opening of the support 32, of the sealing screw 31, a sealing spring 29 is coaxially arranged on the end face, facing the cylindrical plug 28, of the annular plate 30, and the free end of the sealing spring 29 is in contact with the end face of the cylindrical plug 28 to push the cylindrical plug into the vent pipe 21 and seal the corresponding port of the vent pipe 21. The structural design can be used for ejecting the cylindrical plug 28 when the internal pressure is too high, so that direct exhaust is realized, and the structure is safe and reliable.
Filter every three of arranging hole 25 and be a set of, every group is filtered arranging hole 25 and is included outer blind hole 33, first interior blind hole 34, second interior blind hole 35, wherein, outer blind hole 33 is the blind hole with the outside UNICOM of overcoat 22, blind hole 35 is two blind holes with the inside UNICOM of overcoat 22 in first interior blind hole 34 and the second, filter arranging hole 25 and all follow overcoat 22 radial setting, first interior blind hole 34 is located between outer blind hole 33 and the second interior blind hole 35 and respectively with outer blind hole 33 and second interior blind hole 35 intercommunication. The row of holes 25 of straining of this kind of structure makes the filter effect better, and the air current is through circuitous winding in every group strains row of holes 25 when the exhaust for graininess dregs etc. stop, and gas then finally escapes from outer blind hole 33.
Further, vertical downward-sunken collecting grooves 36 are formed in the side walls of the bottoms of the first inner blind holes 34 and the second inner blind holes 35, the cross sections of the collecting grooves 36 of the first inner blind holes 34 are U-shaped, the cross sections of the collecting grooves 36 of the second inner blind holes 35 are right-angled trapezoid-shaped, and the inclined surfaces of the collecting grooves deviate from the bottoms of the holes. The filter exhaust hole 25 is ingenious in design, is used for the first time in all the existing exhaust system designs, and is particularly effective in dust filtering effect during exhaust.
Further, the surface of the second inner blind hole 35 close to the bottom of the hole and the upward side wall is an inclined surface, and the inclined surface inclines towards one side of the vertical channel 37 between the second inner blind hole 35 and the first inner blind hole 34 and is communicated with the vertical channel 37, so that the dust filtering effect is good, and the exhaust speed is accelerated.
Furthermore, an arc-shaped cover is covered above the interface at the intersection of the vertical channel 37 and the first inner blind hole 34, the cover is bent towards the inlet end of the first inner blind hole 34, the circle center of the cover is located at the circle center of the interface, and therefore dregs and smoke at the bottom of the first inner blind hole 34 are prevented from flowing back and gushing out.
Further, the outer part of the outer sleeve 22 is covered with a dust filtering cloth bag 26, so that more sufficient air flow filtration can be further realized.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (5)
1. A constant pressure exhaust filter characterized by: the air vent pipe comprises an air vent pipe with a closed end, wherein a plurality of conical holes are formed in one side of the air vent pipe close to the closed end along the radial direction of the air vent pipe, conical plugs are matched in the conical holes, the conical plugs and the small ends of the conical holes face the inside of the air vent pipe, a pressure relief spring is connected to the large end face of each conical plug, and the axis of the pressure relief spring is coaxial with the axis of the conical plug;
the outer part of the vent pipeline provided with the conical hole is also sleeved with a cylindrical tubular outer sleeve, two ends of the outer sleeve are in seamless connection with the outer wall of the vent pipeline, so that the vent pipeline provided with the conical hole is wrapped by the outer sleeve, the free end of the pressure relief spring is in smooth contact with the inner wall of the outer sleeve, the conical plug blocks the conical hole when the air pressure in the vent pipeline is not at a preset value, and the pressure relief spring is compressed to release the conical plug from the conical hole when the air pressure in the vent pipeline reaches the preset value;
the side wall of the jacket is also provided with a plurality of filtering and exhausting holes for filtering and exhausting,
the conical holes and the conical plugs are uniformly provided with a plurality of circles of cones at intervals along the axial direction of the vent pipe, each circle of conical holes takes a point on the axial line of the vent pipe as a center to form a circular array,
the free end of the pressure relief spring is connected with an arc tile-shaped sliding plate which can be smoothly and seamlessly contacted with the inner wall of the outer sleeve,
the closed end of the vent pipe is closed by a cylindrical plug, an n-shaped support is arranged at the port part of the vent pipe where the cylindrical plug is positioned, the open end of the support is fixed at the periphery of the port, a threaded hole is formed in the center of a horizontal cross beam of the support, a closed screw rod is screwed into the threaded hole towards the cylindrical plug, a circular ring plate is arranged at the part of the closed screw rod screwed into the opening of the support, a closed spring is coaxially arranged on the end surface of the circular ring plate towards the cylindrical plug, the free end of the closed spring is in contact with the end surface of the cylindrical plug to jack the cylindrical plug into the vent pipe and close the corresponding port of the vent pipe,
every three of row's hole is a set of to strain, and every group strains the row's hole and includes blind hole in outer blind hole, the first interior blind hole, the second, wherein, outer blind hole be with the outside UNICOM's of overcoat blind hole, blind hole is two blind holes with the inside UNICOM of overcoat in first interior blind hole and the second, strain the row's hole and all follow the radial setting of overcoat, blind hole intercommunication in first interior blind hole and the second between the blind hole and respectively with outer blind hole and second in the blind hole in first.
2. The constant pressure exhaust filter according to claim 1, wherein: the blind hole structure is characterized in that vertical downward sunken collecting grooves are formed in the side walls of the bottoms of the first inner blind hole and the second inner blind hole, the cross section of each collecting groove of the first inner blind hole is U-shaped, and the cross section of each collecting groove of the second inner blind hole is right-angled trapezoid and the inclined plane of each collecting groove deviates from the bottom of each hole.
3. The constant pressure exhaust filter according to claim 2, wherein: the surface of the second inner blind hole close to the bottom of the second inner blind hole and the upward side wall is an inclined surface, and the inclined surface inclines towards one side of a vertical channel between the second inner blind hole and the first inner blind hole and is communicated with the vertical channel.
4. The constant pressure exhaust filter according to claim 3, wherein: an arc-shaped cover is covered above the interface at the intersection of the vertical channel and the first inner blind hole, the cover bends towards the inlet end of the first inner blind hole, and the circle center of the cover is located at the circle center of the interface.
5. The constant pressure exhaust filter according to claim 1, wherein: the outer part of the outer sleeve is also covered with a dust filtering cloth bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811203063.1A CN109173453B (en) | 2018-10-16 | 2018-10-16 | Constant pressure exhaust filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811203063.1A CN109173453B (en) | 2018-10-16 | 2018-10-16 | Constant pressure exhaust filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109173453A CN109173453A (en) | 2019-01-11 |
| CN109173453B true CN109173453B (en) | 2021-06-04 |
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ID=64944847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811203063.1A Active CN109173453B (en) | 2018-10-16 | 2018-10-16 | Constant pressure exhaust filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109173453B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1140816A (en) * | 1995-07-19 | 1997-01-22 | 李宏志 | Relief valve |
| DE19820931A1 (en) * | 1997-06-02 | 1998-12-03 | Heat Waermetechnische Anlagen | Pressure reduction unit for gas |
| CN2666474Y (en) * | 2003-12-22 | 2004-12-29 | 宝应县华宝医用仪器厂 | CO2 filtering pressure reducing valve |
| CN101008343A (en) * | 2006-12-31 | 2007-08-01 | 潍柴动力股份有限公司 | Automatic deflation equipment of turbo-charging system of medium speed diesel engine |
| CN202188287U (en) * | 2011-08-22 | 2012-04-11 | 天津市祥威传动设备有限公司 | Integrated valve block device capable of relieving pressure |
| CN202802972U (en) * | 2012-06-11 | 2013-03-20 | 河北光阳机车配件有限公司 | Labyrinth type air filter for locomotive body |
| CN203847786U (en) * | 2014-04-12 | 2014-09-24 | 佛山市顺德万和电气配件有限公司 | Decompression valve for gas water heater |
| CN105485388A (en) * | 2016-01-19 | 2016-04-13 | 何祥军 | Pressure release valve of gear pump |
| CN206770693U (en) * | 2017-06-06 | 2017-12-19 | 南安普敦咨询服务有限公司 | A kind of heating furnace safe pressure relief device |
| CN207536554U (en) * | 2017-12-05 | 2018-06-26 | 郑州中泰安科粉体科技有限公司 | A kind of rotary powder explosion-proof relief valve |
-
2018
- 2018-10-16 CN CN201811203063.1A patent/CN109173453B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1140816A (en) * | 1995-07-19 | 1997-01-22 | 李宏志 | Relief valve |
| DE19820931A1 (en) * | 1997-06-02 | 1998-12-03 | Heat Waermetechnische Anlagen | Pressure reduction unit for gas |
| CN2666474Y (en) * | 2003-12-22 | 2004-12-29 | 宝应县华宝医用仪器厂 | CO2 filtering pressure reducing valve |
| CN101008343A (en) * | 2006-12-31 | 2007-08-01 | 潍柴动力股份有限公司 | Automatic deflation equipment of turbo-charging system of medium speed diesel engine |
| CN202188287U (en) * | 2011-08-22 | 2012-04-11 | 天津市祥威传动设备有限公司 | Integrated valve block device capable of relieving pressure |
| CN202802972U (en) * | 2012-06-11 | 2013-03-20 | 河北光阳机车配件有限公司 | Labyrinth type air filter for locomotive body |
| CN203847786U (en) * | 2014-04-12 | 2014-09-24 | 佛山市顺德万和电气配件有限公司 | Decompression valve for gas water heater |
| CN105485388A (en) * | 2016-01-19 | 2016-04-13 | 何祥军 | Pressure release valve of gear pump |
| CN206770693U (en) * | 2017-06-06 | 2017-12-19 | 南安普敦咨询服务有限公司 | A kind of heating furnace safe pressure relief device |
| CN207536554U (en) * | 2017-12-05 | 2018-06-26 | 郑州中泰安科粉体科技有限公司 | A kind of rotary powder explosion-proof relief valve |
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| Publication number | Publication date |
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| CN109173453A (en) | 2019-01-11 |
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Address after: 100176 1st floor, building 12, yard 26, Xihuan South Road, economic and Technological Development Zone, Daxing District, Beijing Applicant after: Chen Fangshu Address before: 301723 room 1802, gate 1, building 34, Shangyue home, cuitong Road, dongpuwa street, Wuqing District, Tianjin Applicant before: Chen Fangshu |
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