CN109173491B - Combined filter structure for high-temperature and high-pressure gas source - Google Patents
Combined filter structure for high-temperature and high-pressure gas source Download PDFInfo
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- CN109173491B CN109173491B CN201811086237.0A CN201811086237A CN109173491B CN 109173491 B CN109173491 B CN 109173491B CN 201811086237 A CN201811086237 A CN 201811086237A CN 109173491 B CN109173491 B CN 109173491B
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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
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
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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
- B01D46/0002—Casings; Housings; Frame constructions
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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
- B01D46/58—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 parallel
-
- 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
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Abstract
The invention relates to a combined filter structure for a high-temperature and high-pressure gas source, which mainly comprises a filter shell, a filter lining and a filter inner core. The gas channel layout of each layer of filtering structure is designed to realize the change and the interception of the gas flowing direction, and the gas flowing direction is changed for many times and the gas channel is intercepted to realize the filtration of the gas for many times. The processing materials of the filter shell, the filter lining and the filter inner core, the form and the spatial layout of the gas channel can be determined according to the specific use environment, the heat resistance of the materials of the filter shell, the filter lining and the filter inner core is in gradient change, the equivalent diameter of the gas channel of the filter shell is ensured to be the largest, and the equivalent diameter of the gas channel of the filter inner core is ensured to be the smallest. The invention realizes the effective filtration of high-temperature and high-pressure fuel gas by depending on mature structure calculation and flow calculation, and ensures the reliable and efficient work of the valve.
Description
Technical Field
The invention relates to a combined filter structure, in particular to a filter structure for a high-temperature and high-pressure fuel gas source.
Background
With the development of the technology, high-temperature and high-pressure gas is widely used as working media of turbine generators, liquid pump driving devices, driving devices of large servo mechanisms and the like, and a solid gas generator is one of the sources of the high-temperature and high-pressure gas. In the working environment, the cleanliness of high-temperature and high-pressure fuel gas is a key influence factor of efficient and reliable work of each system.
The reasons for the uncleanness of the gas in the solid gas generator are mainly two points: (1) in order to improve the energy of high-temperature and high-pressure gas in the solid gas generator, metal particles are added into a propellant, and the metal particles are incompletely combusted, so that a large amount of residues exist in the gas; (2) the combustion of the insulation layer in the solid gas generator produces impurities that cause unclean gas.
At present, a solid gas generator is mainly developed into a clean gas generating agent in order to obtain high-temperature and high-pressure clean gas, but a heat insulating layer of the solid gas generator is also combusted and decomposed in a propellant combustion process, and impurities are generated in the gas. For this reason, it is necessary to provide a filter for high-temperature and high-pressure fuel gas.
Disclosure of Invention
The invention aims to provide a combined filter structure for a high-temperature and high-pressure gas source, which changes the flow direction of gas through a multi-layer filter structure and filters the high-temperature and high-pressure gas through the interception function of a gas channel on the filter structure, so that the cleanliness of the gas after passing through the filter is ensured.
The technical scheme adopted by the invention is as follows: a combined filter structure for high-temperature and high-pressure gas sources comprises a filter shell, a filter lining and a filter inner core; the filter outer shell and the filter inner liner are bonded together, and the filter inner core is connected with the air inlet of the valve; the equivalent diameter of a fuel gas channel of the filter lining is smaller than that of a fuel gas channel of the filter shell; the equivalent diameter of the fuel gas channel of the filter inner core is smaller than that of the fuel gas channel of the filter lining.
The combined filter structure for the high-temperature and high-pressure gas source is mainly installed at the end socket of the solid gas generator, and high-temperature and high-pressure gas in the working process sequentially passes through the three-layer filtering structure of the filter shell, the filter lining and the filter inner core. The filter provided by the invention realizes the filtration of high-temperature and high-pressure fuel gas mainly by changing the flow direction of the high-temperature and high-pressure fuel gas and intercepting the fuel gas through the fuel gas channel. The filter shell is of a first-layer filtering structure, the temperature of gas flowing through the filter shell is highest, so that a non-metallic material such as carbon/carbon is selected, a gas channel is formed in the filter shell, and the direction of the gas passing through the first-layer gas filtering channel is perpendicular to the flowing direction of the gas in a high-temperature and high-pressure gas source; the inner lining of the filter is of a second layer filtering structure, the temperature of the fuel gas is reduced when the fuel gas reaches the second layer filtering structure through the first layer filtering structure, so that the second layer filtering structure is made of high-temperature alloy such as molybdenum, titanium and zirconium, a fuel gas channel is formed in the inner lining of the filter, the direction of the fuel gas passing through the second layer fuel gas filtering channel is ensured to be vertical to the direction of the fuel gas passing through the first layer fuel gas channel, and the equivalent diameter of the second layer fuel gas channel is smaller than that of the first layer fuel gas channel; the gas after passing through the second layer of filtering structure enters the filter inner core, the temperature of the gas is further reduced after passing through the second layer of filtering structure, therefore, the filter inner core is processed by high-temperature alloys such as titanium alloy and nickel-based alloy, the direction of the gas passing through the filter inner core is vertical to the direction of the gas passing through the filter lining, the third filtering is realized, and the equivalent diameter of the third layer of filtering structure is smaller than that of the second layer of filtering structure.
The combined filter structure for the high-temperature and high-pressure gas source has the beneficial effects that the combined filter structure for the high-temperature and high-pressure gas source is provided, the filter is formed by combining a three-layer structure comprising a filter shell, a filter lining and a filter inner core, and the three-layer filtering structure is used for enabling gas to pass through from the inside of the solid gas generator, so that the three-time filtering of the high-temperature and high-pressure gas is realized by changing the flowing direction of the high-temperature and high-pressure gas and the interception.
Drawings
Fig. 1 is a schematic view of a modular filter for a high temperature and high pressure gas source according to the present invention.
FIG. 2 is a schematic view of a filter housing according to an embodiment of the present invention.
FIG. 3 is a schematic view of a filter liner according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of a filter core according to an embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic structural diagram of a combined filter for a high-temperature and high-pressure gas source according to an embodiment of the present invention, in which 1 is a filter housing, 2 is a filter liner, and 3 is a filter core. The filter housing 1 and filter liner 2 are first bonded together, the filter core 3 is attached to the valve inlet, and the filter assembly is installed in the solid gas generator head.
Secondly, the filter housing 1 is provided with a gas channel, the gas channel of the high-temperature and high-pressure gas source passes through the first layer of filtering structure, the direction of the gas passing through the first layer of filtering structure is vertical to the flowing direction of the gas in the high-temperature and high-pressure gas source, and large particle impurities in the gas are filtered by the change of the gas direction and the closure of the gas channel of the filter housing. The fuel gas in the gas generator is in direct contact with the filter housing, and therefore the filter housing is made of a high temperature resistant carbon/carbon non-metallic material. FIG. 2 is a schematic view of a filter housing according to an embodiment of the present invention. The gas channel position of the filter shell 1 can be located on the side face of the filter shell 1 and also can be located at the bottom of the filter shell 1, the determining principle is that the flowing direction of gas passing through the first layer of filter is perpendicular to the flowing direction of gas in the solid gas generator, the shape of the gas channel can be selected from various forms such as a round hole and a square channel, and the equivalent diameter and the ventilation area of the channel are determined according to the gas flow.
And thirdly, the gas flowing through the first layer of filtering structure is filtered by the second layer of gas through the gas channel at the bottom of the filter lining 2, the direction of the gas passing through the second layer of filtering structure is mutually vertical to the direction passing through the first layer of gas filtering structure, and the second filtering of the gas is realized by changing the gas direction and intercepting the gas channel of the filter lining. The temperature of the fuel gas is reduced after passing through the first layer of filtering structure, so that the lining of the filter is made of high-temperature-resistant alloy such as molybdenum, titanium and zirconium, and the like, as shown in fig. 3, the fuel gas channel of the lining 2 of the filter is arranged at the bottom and can also be arranged at the side according to the direction of the air flow, the principle is to ensure that the flow direction of the air flow in the second layer of filtering structure is vertical to the flow direction in the first layer of filtering structure, the fuel gas channel can be a circular channel or a square channel, the equivalent diameter and the area of the channel are determined according to the fuel gas flow, and the equivalent diameter of the fuel gas channel of the lining 2 of the filter is.
Finally, the fuel gas filtered twice enters the valve through the fuel gas channel of the filter inner core 3, the direction of the fuel gas passing through the third layer of filtering structure is perpendicular to the direction of the fuel gas passing through the second layer of filtering structure, the filtration of impurities in the fuel gas is realized by changing the direction of the fuel gas and the interception of the fuel gas channel of the filter inner core 3, and the temperature of the fuel gas is further reduced after passing through the second layer of filtering structure, so that the filter inner core 3 is processed by selecting materials such as titanium alloy, nickel-based alloy and the like. As shown in fig. 4, the gas passage of the filter core 3 is a circular hole, the arrangement of the circular hole can be divided into multiple layers, the number and the diameter of the circular holes are determined according to the gas flow, and the equivalent diameter of the gas passage of the filter core 3 is smaller than that of the gas passage of the filter lining 2.
In fig. 2, 3 and 4, the heat resistance of the materials of the filter shell 1, the filter lining 2 and the filter core 3 is changed in a gradient manner, the heat resistance of the material of the filter shell 1 is the best, the material of the filter lining 2 is the next, and the requirement on the heat resistance of the filter core 3 is relatively low. The positions of the gas channels of the filter shell 1, the filter lining 2 and the filter inner core 3 are not limited to those shown in the figure, and can be rearranged according to the direction of the gas flow, the principle is that the directions of the gas passing through the filter structure twice before and after are ensured to be mutually vertical, the forms of the gas channels can be selected from circular, rectangular and other forms, the area of the gas channels can be determined according to the gas flow, and the spatial layout of the gas channels can be rearranged according to the use environment.
Claims (6)
1. A combined filter structure for high-temperature and high-pressure gas sources is characterized by comprising a filter shell, a filter lining and a filter inner core; the filter shell is of a first layer of filtering structure, the filter lining is of a second layer of filtering structure, and the filter inner core is of a third layer of filtering structure; the filter assembly is arranged on a seal head of the solid gas generator;
the filter outer shell and the filter inner liner are bonded together, and the filter inner core is connected with the air inlet of the valve; the equivalent diameter of a fuel gas channel of the filter lining is smaller than that of a fuel gas channel of the filter shell; the equivalent diameter of a fuel gas channel of the filter inner core is smaller than that of a fuel gas channel of the filter lining;
the fuel gas channel position of the filter shell is positioned on the side surface of the filter shell or the bottom of the filter shell, and the determining principle is to ensure that the flowing direction of the fuel gas passing through the first layer of filtering structure is vertical to the flowing direction of the fuel gas in the solid fuel gas generator; the direction of the fuel gas passing through the second layer of filtering structure is vertical to the direction of the fuel gas passing through the first layer of filtering structure; the direction of the fuel gas passing through the third layer of filtering structure is vertical to the direction of the fuel gas passing through the second layer of filtering structure;
the gas channel of the filter lining adopts a circular channel or a square channel, and the equivalent diameter and the area of the channel are determined according to the gas flow;
the heat resistance of the materials of the filter shell, the filter lining and the filter inner core is in gradient change, wherein the heat resistance of the material of the filter shell is the highest, the lining is the second, and the heat resistance of the material of the filter inner core is relatively lower.
2. A modular filter construction for a high temperature and pressure gas source as claimed in claim 1 wherein the filter housing material is a carbon/carbon, carbon/silicon carbide refractory material.
3. A modular filter construction for a high temperature and pressure gas source as claimed in claim 1 wherein the gas passage of the filter housing is in the form of a circular or square passage having an equivalent diameter and a vent area determined by the gas flow rate.
4. A modular filter construction for a high temperature and pressure gas source as claimed in claim 1 wherein the filter liner is of a high temperature alloy of molybdenum, titanium and zirconium.
5. A modular filter construction for a hot and pressurized gas source as recited in claim 1 wherein said filter core is selected from the group consisting of titanium alloys, nickel based alloys of high temperature alloy materials.
6. The modular filter structure for a high temperature and pressure gas source as claimed in claim 1, wherein the gas passage of the filter core is circular holes, the arrangement of the circular holes can be divided into multiple layers, and the number and diameter of the circular holes are determined according to the gas flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811086237.0A CN109173491B (en) | 2018-09-18 | 2018-09-18 | Combined filter structure for high-temperature and high-pressure gas source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811086237.0A CN109173491B (en) | 2018-09-18 | 2018-09-18 | Combined filter structure for high-temperature and high-pressure gas source |
Publications (2)
| Publication Number | Publication Date |
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| CN109173491A CN109173491A (en) | 2019-01-11 |
| CN109173491B true CN109173491B (en) | 2021-03-09 |
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| CN201811086237.0A Active CN109173491B (en) | 2018-09-18 | 2018-09-18 | Combined filter structure for high-temperature and high-pressure gas source |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113058336B (en) * | 2021-03-05 | 2023-03-24 | 上海新力动力设备研究所 | Filtering device for gas regulating valve |
Citations (3)
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|---|---|---|---|---|
| CN201237262Y (en) * | 2008-05-28 | 2009-05-13 | 重庆工学院 | Safety energy-saving gas-combustion stove |
| CN206566622U (en) * | 2017-03-20 | 2017-10-20 | 濮阳普瑞德燃控设备工程有限公司 | Torch gas Special filtering device |
| CN207169264U (en) * | 2017-09-14 | 2018-04-03 | 中材高新成都能源技术有限公司 | A kind of high pressure filter |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8413732B2 (en) * | 2006-12-11 | 2013-04-09 | N2 Towers Inc. | System and method for sodium azide based suppression of fires |
| US9302227B2 (en) * | 2011-09-02 | 2016-04-05 | Membrane Technology And Research, Inc. | Membrane separation assembly for fuel gas conditioning |
| JP6286117B2 (en) * | 2012-08-31 | 2018-02-28 | 東京濾器株式会社 | Oil separation method |
| US9815012B2 (en) * | 2013-06-24 | 2017-11-14 | Pecofacet (Us), Inc. | Filter elements, coalescing baffles, filtration vessel and methods |
| DE102013214786A1 (en) * | 2013-07-29 | 2015-01-29 | comITen GbR (vertretungsberechtigter Gesellschafter: Axel Moddemann, 53619 Rheinbreitbach) | tank |
| US10150075B2 (en) * | 2015-05-14 | 2018-12-11 | Parker-Hannifin Corporation | Pin filter |
| CN106940011A (en) * | 2015-07-21 | 2017-07-11 | 管理 | The double constraint flame magnesium catalysis fuel oils of high-temperature plasma gas magnetic, coal dust, heap formula heat engine |
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2018
- 2018-09-18 CN CN201811086237.0A patent/CN109173491B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201237262Y (en) * | 2008-05-28 | 2009-05-13 | 重庆工学院 | Safety energy-saving gas-combustion stove |
| CN206566622U (en) * | 2017-03-20 | 2017-10-20 | 濮阳普瑞德燃控设备工程有限公司 | Torch gas Special filtering device |
| CN207169264U (en) * | 2017-09-14 | 2018-04-03 | 中材高新成都能源技术有限公司 | A kind of high pressure filter |
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| CN109173491A (en) | 2019-01-11 |
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