CN111389128B - A direct buried gas filter - Google Patents
A direct buried gas filter Download PDFInfo
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- CN111389128B CN111389128B CN202010277183.7A CN202010277183A CN111389128B CN 111389128 B CN111389128 B CN 111389128B CN 202010277183 A CN202010277183 A CN 202010277183A CN 111389128 B CN111389128 B CN 111389128B
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- end cover
- air inlet
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- 238000004581 coalescence Methods 0.000 claims description 36
- 238000007789 sealing Methods 0.000 claims description 17
- 238000001179 sorption measurement Methods 0.000 claims description 14
- 239000003365 glass fiber Substances 0.000 claims description 12
- 239000004745 nonwoven fabric Substances 0.000 claims description 11
- 229920001131 Pulp (paper) Polymers 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 5
- 238000009933 burial Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 59
- 239000002737 fuel gas Substances 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000002245 particle Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 239000010865 sewage Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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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
- B01D46/60—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 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
- B01D46/0002—Casings; Housings; Frame constructions
-
- 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
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
-
- 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
- B01D46/2411—Filter cartridges
- B01D46/2414—End caps including additional functions or special forms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
- C10L3/106—Removal of contaminants of water
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
本发明公开了一种直埋式燃气过滤器，包括壳体和安装在壳体上端开口处的快开盲板，壳体的左右侧对应设有进气口和出气口，壳体的内腔通过挡板组件分隔成进气腔和出气腔，挡板组件包括左挡板、右挡板和竖挡板，左挡板水平设置并处于进气口的上侧，右挡板水平设置并处于出气口的下侧，竖挡板的上下端对应与左挡板和右挡板连接；壳体的内腔中还设有处于出气口上侧且呈水平状态的支架板，支架板和右挡板之间设有多个竖向的聚结滤芯，聚结滤芯的内孔下端与进气腔连通，聚结滤芯的内孔上端封闭。其具有结构紧凑、适应性强、过滤效果好的优点，可有效降低埋深和安装难度，且能滤除燃气中的水分，增强了燃气管网运行的安全可靠性和末端的用气品质。
The invention discloses a direct-buried gas filter, which comprises a casing and a quick-opening blind plate installed at the opening of the upper end of the casing. The left and right sides of the casing are correspondingly provided with an air inlet and an air outlet, and an inner cavity of the casing is provided. The baffle assembly is divided into an air inlet cavity and an air outlet cavity. The baffle assembly includes a left baffle, a right baffle and a vertical baffle. The left baffle is horizontally arranged and located on the upper side of the air inlet, and the right baffle is horizontally arranged and located at the upper side of the air inlet. On the lower side of the air outlet, the upper and lower ends of the vertical baffle are correspondingly connected with the left baffle and the right baffle; the inner cavity of the casing is also provided with a bracket plate on the upper side of the air outlet and in a horizontal state, the bracket plate and the right baffle A plurality of vertical coalescing filter elements are arranged between the plates, the lower end of the inner hole of the coalescing filter element is communicated with the air inlet cavity, and the upper end of the inner hole of the coalescing filter element is closed. It has the advantages of compact structure, strong adaptability and good filtering effect, which can effectively reduce the burial depth and installation difficulty, and can filter out the moisture in the gas, which enhances the safety and reliability of the gas pipeline network operation and the gas quality at the end.
Description
Technical Field
The invention relates to a filter, in particular to a direct-buried gas filter.
Background
In a gas pipe network, a traditional regional pressure regulating station is usually arranged on the ground, so that a station house needs to be built for the traditional regional pressure regulating station, equipment such as a pressure regulator, a filter and the like is convenient to manage and maintain, a large amount of land resources and ground space are occupied, and urban planning is not facilitated. In order to solve the problem, the existing field adopts a mode that a pressure regulator, a filter and other equipment are vertically buried underground and a control port is arranged at the upper end of the pressure regulator, but the air inlet and the air outlet of the existing buried gas filter have larger height difference, so that the vertical size is larger, the buried depth is larger when the gas filter is buried, the elevation of the air inlet and the air outlet is required to be adjusted through an elbow so as to be connected with buried gas pipelines at two sides, the construction amount is increased, and the installation difficulty is higher. In addition, the existing buried gas filter can only filter solid particles in gas, water in the gas cannot be effectively filtered, and the water is condensed into water drops to easily cause the phenomenon that pipeline elements such as a signal pipe of a pressure regulator are damaged by ice blockage and the like, so that the safety and stability of the operation of a gas pipe network are influenced.
Disclosure of Invention
The invention aims to provide a direct-buried gas filter which has the advantages of compact structure, strong adaptability and good filtering effect, can effectively reduce the buried depth and the installation difficulty, can filter water in gas, and enhances the safe reliability of the operation of a gas pipe network and the gas quality at the tail end.
In order to solve the problems in the prior art, the invention provides a direct-buried gas filter which comprises a shell with an opening at the upper end and a quick-opening blind plate arranged at the opening of the shell, wherein the left side and the right side of the shell are correspondingly provided with an air inlet and an air outlet, the inner cavity of the shell is divided into an air inlet cavity and an air outlet cavity by a baffle assembly, the baffle assembly comprises a left baffle, a right baffle and a vertical baffle, the left baffle is horizontally arranged and is positioned at the upper side of the air inlet, the right baffle is horizontally arranged and is positioned at the lower side of the air outlet, and the upper end and the lower end of the vertical baffle are correspondingly connected with the left baffle and the right baffle; still be equipped with in the inner chamber of casing and be the mounting panel of gas outlet upside and be the horizontality, be equipped with a plurality of vertical coalescence filter cores between mounting panel and the right baffle, the hole lower extreme and the chamber intercommunication that admits air of coalescence filter core, the hole upper end of coalescence filter core is sealed.
Furthermore, the invention relates to a direct-buried gas filter, wherein the coalescence filter element comprises a vertical filter cylinder, an upper end cover and a lower end cover which are correspondingly fixed at two ends of the filter cylinder, the filter cylinder comprises an inner framework, a filter layer, a coalescence layer, an outer framework and an adsorption layer which are sequentially nested from inside to outside, the inner framework is made of a punching plate, the filter layer is made of wood pulp filter paper, the coalescence layer comprises two layers of glass fibers and non-woven fabric sandwiched between the two layers of glass fibers, the non-woven fabric is bonded with the two layers of glass fibers through dispersed points, the outer framework is made of a metal woven mesh, and the adsorption layer is made of all-cotton knitted fabric.
Further, the direct-buried gas filter is characterized in that an auxiliary adsorption layer made of non-woven fabric is sleeved between the outer framework and the adsorption layer; the ends of the filtering layer and the aggregation layer are both in star shapes.
Further, the invention relates to a direct-buried gas filter, wherein the upper end cover comprises an upper inner ring and an upper outer ring, and the tops of the upper inner ring and the upper outer ring are connected into a whole through an annular upper cover plate; the lower end cover comprises a lower inner ring and a lower outer ring, and the bottoms of the lower inner ring and the lower outer ring are connected into a whole through an annular lower cover plate; the periphery of the upper end of the filter cylinder is clamped between the upper inner ring and the upper outer ring of the upper end cover, and the periphery of the lower end of the filter cylinder is clamped between the lower inner ring and the lower outer ring of the lower end cover.
Further, the invention relates to a direct-buried gas filter, wherein an upper sealing washer made of rubber or felt is arranged on the upper side of the upper end cover, and a lower sealing washer made of rubber or felt is arranged on the lower side of the lower end cover.
Further, the invention relates to a direct-buried gas filter, wherein the connection mode of the coalescence filter element, the bracket plate and the right baffle plate is as follows: a short pipe which corresponds to the coalescence filter element and is communicated with the air inlet cavity is fixed on the right baffle plate, a support ring is fixed at the upper end of the short pipe, guide lugs which are distributed at intervals are fixed on the support ring along the circumferential direction, a connecting nut is fixed on the guide lugs, and a pull rod is screwed on the connecting nut; the coalescence filter core cover is on the pull rod, and the lower extreme extrusion of coalescence filter core is on the support ring, and the spacing hole that sets up on the mounting panel is passed to the upper end of coalescence filter core, and shutoff dish and lock nut are installed to the upper end of pull rod, and the extrusion of shutoff dish is in the upper end of coalescence filter core.
Further, the directly buried gas filter is characterized in that an upper sealing ring made of felt is arranged between the top of the filter cylinder and the upper end cover, and a lower sealing ring made of felt is arranged between the bottom of the filter cylinder and the lower end cover.
Further, the direct-buried gas filter is characterized in that the upper end cover, the lower end cover, the inner framework and the outer framework are made of stainless steel.
Compared with the prior art, the direct-buried gas filter has the following advantages: according to the invention, the shell with the upper end opening and the quick-opening blind plate arranged at the opening of the shell are arranged, the left side and the right side of the shell are correspondingly provided with the air inlet and the air outlet, so that the inner cavity of the shell is divided into the air inlet cavity and the air outlet cavity by the baffle assembly, the baffle assembly comprises a left baffle, a right baffle and a vertical baffle, the left baffle is horizontally arranged and positioned at the upper side of the air inlet, the right baffle is horizontally arranged and positioned at the lower side of the air outlet, and the upper end and the lower end of the vertical baffle are correspondingly connected with the left baffle and the right baffle; and set up the mounting panel that is in the gas outlet upside and be the horizontality in the inner chamber of casing, set up a plurality of vertical coalescence filter cores between mounting panel and right baffle, and make the hole lower extreme and the chamber intercommunication that admits air of coalescence filter core, make the hole upper end of coalescence filter core seal. Therefore, the direct-buried gas filter with compact structure, strong adaptability and good filtering effect is formed. In practical application, the direct-buried gas filter is vertically buried underground, the gas inlet and the gas outlet are correspondingly connected with buried gas pipelines at two sides, and impurities in gas can be filtered through the coalescing filter element in the process that the gas sequentially passes through the gas inlet, the gas inlet cavity, the coalescing filter element, the gas outlet cavity and the gas outlet. The invention divides the inner cavity of the shell into the air inlet cavity and the air outlet cavity by arranging the baffle plate component, so that the air inlet and the air outlet are positioned in the same horizontal plane, the height can be adjusted at will, the vertical size and the buried depth of the filter are effectively reduced, the buried construction amount is reduced, the elevation of the air inlet and the air outlet does not need to be adjusted through an elbow, the installation difficulty is reduced, and the adaptability to the buried gas pipeline is enhanced. Meanwhile, the invention adopts the coalescence filter element which internally enters and exits, not only can filter solid particles in the fuel gas, but also can quickly coalesce and separate moisture in the fuel gas, thereby enhancing the safety and reliability of the operation of the fuel gas pipe network and the gas quality at the tail end.
The direct-buried gas filter according to the present invention will be described in further detail with reference to the embodiments shown in the drawings.
Drawings
FIG. 1 is a schematic structural diagram of a direct-buried gas filter according to the present invention;
FIG. 2 is an enlarged view of a portion of the portion A of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 1 at position B;
FIG. 4 is a half-sectional view of a coalescing filter element in a direct-buried gas filter according to the present invention;
FIG. 5 is an enlarged view of a portion of the C position of FIG. 4;
FIG. 6 is an enlarged view of a portion of FIG. 4 at position D;
FIG. 7 is a schematic end view of a filter layer of a coalescing filter element in a direct-buried gas filter according to the present invention;
FIG. 8 is a schematic end view of a coalescing filter element coalescing layer in a direct-burried gas filter of the present invention;
fig. 9 is a schematic diagram of the spreading and bonding points of the coalescing filter element coalescing layer in the direct-buried gas filter according to the invention.
Detailed Description
First, it should be noted that, the directional terms such as up, down, left, right, front, rear, etc. described in the present invention are only described with reference to the accompanying drawings for understanding, and are not intended to limit the technical solution and the claimed scope of the present invention.
As shown in fig. 1 to 9, the embodiment of the direct-buried gas filter of the present invention includes a casing 1 with an open upper end and a quick-opening blind plate 2 installed at the opening of the casing 1. An air inlet 11 and an air outlet 12 are correspondingly arranged on the left side and the right side of the shell 1, and the inner cavity of the shell 1 is divided into an air inlet cavity 13 and an air outlet cavity 14 through a baffle plate assembly. The baffle plate assembly specifically comprises a left baffle plate 3, a right baffle plate 4 and a vertical baffle plate 5, the left baffle plate 3 is horizontally arranged and is positioned on the upper side of the air inlet 11, the right baffle plate 4 is horizontally arranged and is positioned on the lower side of the air outlet 12, and the upper end and the lower end of the vertical baffle plate 5 are correspondingly connected with the left baffle plate 3 and the right baffle plate 4. And set up in the inner chamber of casing 1 and be in the gas outlet 12 upside and be the mounting panel 6 of horizontality, set up a plurality of vertical coalescence filter cores 7 between mounting panel 6 and right baffle 4, and make the hole lower extreme and the chamber 13 intercommunication that admits air of coalescence filter core 7, make the hole upper end of coalescence filter core 7 seal.
The direct-buried gas filter with compact structure, strong adaptability and good filtering effect is formed by the structure. In practical application, the direct-buried gas filter is vertically buried underground, the gas inlet 11 and the gas outlet 12 are correspondingly connected with buried gas pipelines at two sides, and impurities in gas can be filtered through the coalescing filter element 7 in the process that the gas sequentially passes through the gas inlet 11, the gas inlet cavity 13, the coalescing filter element 7, the gas outlet cavity 14 and the gas outlet 12. The invention divides the inner cavity of the shell into an air inlet cavity and an air outlet cavity by arranging the baffle plate component, so that the air inlet 11 and the air outlet 12 are positioned in the same horizontal plane, the height can be adjusted at will, the vertical size and the buried depth of the filter are effectively reduced, the buried construction amount is reduced, the elevation of the air inlet and the air outlet does not need to be adjusted through an elbow, the installation difficulty is reduced, and the adaptability to the buried gas pipeline is enhanced. Meanwhile, the invention adopts the coalescence filter element 7 which internally enters and exits, not only can filter solid particles in the fuel gas, but also can quickly coalesce and separate moisture in the fuel gas, thereby enhancing the safety and reliability of the operation of the fuel gas pipe network and the gas quality at the tail end. It should be noted that, in order to ensure the effectiveness of the baffle assembly in separating the inner cavity of the housing 1, the left baffle 3, the right baffle 4 and the vertical baffle 5 should be respectively connected with the housing 1 in a sealing manner, and the invention generally adopts a welding manner. In practical application, the invention also arranges a protective cover on the upper side of the shell 1 so as to protect the filter and the monitoring and control components arranged on the upper side of the quick-opening blind plate 2, and the protective cover is generally flush with the ground when buried so as to avoid influencing the use of ground space. Be equipped with seal structure and locking structure between quick-open blind plate 2 and casing 1, can dismouting coalescence filter core 7 through opening quick-open blind plate 2, quick-open blind plate is the mature technique in this field, and no longer the repeated description here.
As an optimized scheme, the coalescing filter element 7 adopts the following structure: comprises a vertical filter cylinder 71 and an upper end cover 72 and a lower end cover 73 which are correspondingly fixed at the two ends of the filter cylinder 71. The filter cartridge 71 is provided with an inner frame 711, a filter layer 712, a coalescing layer 713, an outer frame 714, and an adsorption layer 715, which are sequentially nested from inside to outside. The inner frame 711 is made of a punching plate; the filter layer 712 is made of wood pulp filter paper; the coalescing layer 713 is made to include two layers of glass fibers and a nonwoven fabric sandwiched between the two layers of glass fibers, and the nonwoven fabric is made to adhere to the two layers of glass fibers through dispersed points; the outer framework 714 is made of metal mesh; the absorbent layer 715 is made of all-cotton knitted fabric. The coalescing filter element 7 has the advantages of simple structure, strong functionality and good filtering effect. When the fuel gas flows through the filter layer 712, the coalescence layer 713 and the adsorption layer 715 from inside to outside in sequence, solid particles in the fuel gas can be filtered out through the filter layer 712, moisture in the fuel gas can be coalesced into water drops through the coalescence layer 713, the water drops can be continuously adsorbed through the adsorption layer 715, and the adsorbed water is settled to the bottom of the coalescence filter element under the action of gravity, so that the purposes of filtering the solid particles and separating the moisture are simultaneously achieved. The structure stability of the coalescence filter element is ensured by arranging the inner framework 711 and the outer framework 714, the filtering layer 712 is made of wood pulp filter paper to ensure the filtering effect of solid particles, the coalescence layer 713 is provided with two layers of glass fibers and non-woven fabric sandwiched between the two layers of glass fibers to improve the coalescence efficiency and the coalescence effect of water, and the non-woven fabric is bonded with the two layers of glass fibers through dispersed points, so that on the basis of ensuring the air permeability, on one hand, the structure stability of the coalescence layer is enhanced, the service life is prolonged, and on the other hand, the coalescence and the collection of water are more facilitated through the dispersed bonding points. It should be pointed out that the coalescing filter element 7 should be used vertically and vented from the inside to the outside to ensure the filtering and moisture separation functions. Meanwhile, an auxiliary adsorption layer 716 made of non-woven fabric is sleeved between the outer framework 714 and the adsorption layer 715, so that the water adsorption and separation effects are further enhanced. In order to increase the contact area with the fuel gas, the filter layer 712 and the coalescing layer 713 are folded to have a star-shaped end structure.
In the present invention, the upper and lower caps 72 and 73 have the following configurations: the upper end cover 72 comprises an upper inner ring 721 and an upper outer ring 722, and the tops of the upper inner ring 721 and the upper outer ring 722 are connected into a whole through an annular upper cover plate 723; the lower end cap 73 includes a lower inner ring 731 and a lower outer ring 732, and the bottoms of the lower inner ring 731 and the lower outer ring 732 are connected to each other by a lower cover plate 733. The coalescing filter element is assembled with the upper end peripheral edge of filter cartridge 71 captured between upper inner ring 721 and upper outer ring 722 of upper end cap 72 and the lower end peripheral edge of filter cartridge 71 captured between lower inner ring 731 and lower outer ring 732 of lower end cap 73. The upper end cover 72 and the lower end cover 73 of this arrangement have the characteristics of simple structure, easy preparation and stable connection, and it should be noted that the present invention generally makes the upper inner ring 721, the upper outer ring 722 and the upper cover plate 723 as one body, and makes the lower inner ring 731, the lower outer ring 732 and the lower cover plate 733 as one body, so as to enhance the integrity and the structural strength thereof. Meanwhile, in the present embodiment, an upper seal gasket 74 made of rubber or felt is provided on the upper side of the upper end cover 72, and a lower seal gasket 75 made of rubber or felt is provided on the lower side of the lower end cover 73. Sealing is quickly achieved by compressing the upper and lower sealing gaskets 74, 75 when the coalescing filter element is installed.
As a specific embodiment, the present invention provides the coalescing filter element 7 with the bracket plate 6 and the right baffle plate 4 in the following connection manner: a short pipe 41 which corresponds to the coalescence filter element 7 and is communicated with the air inlet cavity 13 is fixed on the right baffle plate 4, a support ring 42 is fixed at the upper end of the short pipe 41, guide lugs 43 which are distributed at fixed intervals along the circumferential direction of the support ring 42 are fixed, the guide lugs 43 are fixedly connected with a nut 44, and a pull rod 45 of which the lower end is screwed on the connecting nut 44 is arranged. The coalescing filter element 7 is sleeved on the pull rod 45, the lower end of the coalescing filter element 7 is extruded on the support ring 42 through the lower sealing washer 75, the upper end of the coalescing filter element 7 penetrates through the limiting hole arranged on the support plate 6, the plugging disc 46 and the locking nut 47 are arranged at the upper end of the pull rod 45, and the plugging disc 46 is extruded on the upper end of the coalescing filter element 7 through the upper sealing washer 74. The structure and the connection mode have the advantages of convenient disassembly and assembly, stable connection and reliable sealing. It should be noted that a sealing structure is provided between the blocking disk 46 and the locking nut 47 to ensure the tightness of the upper end of the coalescing filter element 7; the lower end of the coalescing filter element 7 is in communication with the short pipe 41 through a gap between the guide lugs 43. In order to prevent the fuel gas from directly passing through the connection between the upper end cap 72 and the lower end cap 73 and the filter cartridge 71, and further to prevent the effects of filtration and moisture separation, in the present embodiment, an upper sealing ring 76 made of felt is disposed between the top of the filter cartridge 71 and the upper end cap 72, and a lower sealing ring 77 made of felt is disposed between the bottom of the filter cartridge 71 and the lower end cap 73. In order to enhance the structural strength and corrosion resistance of the coalescing filter element and prolong the service life, the upper end cover 72, the lower end cover 73, the inner framework 711 and the outer framework 714 are all made of stainless steel in the embodiment.
It should be noted that, in practical application, the first pressure taking pipe 15 and the second pressure taking pipe 16 which are correspondingly communicated with the air inlet cavity 13 and the air outlet cavity 14 are usually arranged on the shell 1, and the differential pressure transmitter is arranged between the first pressure taking pipe 15 and the second pressure taking pipe 16, so that the state of the coalescing filter element 7 can be accurately judged through the differential pressure transmitter, when the reading of the differential pressure transmitter is greater than a set threshold value, the coalescing filter element 7 is attached with more dirt, and the dirt should be replaced in time, and the reliability of filtration is ensured. To enhance the stability of the support, the present invention generally provides a skirt 17 at the lower side of the housing 1 and fixes a support base plate 18 at the lower side of the skirt 17. In order to facilitate sewage discharge, the invention also arranges a sewage discharge pipe 18 which passes through the skirt 17 at the bottom of the shell 1, and connects the sewage discharge pipe 19 with a sewage discharge pump.
The above examples are only for describing the preferred embodiments of the present invention, and do not limit the scope of the claimed invention, and various modifications made by those skilled in the art according to the technical solutions of the present invention should fall within the scope of the invention defined by the claims without departing from the design concept of the present invention.
Claims (6)
1. A direct-buried gas filter comprises a shell (1) with an open upper end and a quick-opening blind plate (2) arranged at the opening of the shell (1), and is characterized in that the left side and the right side of the shell (1) are correspondingly provided with an air inlet (11) and an air outlet (12), the inner cavity of the shell (1) is divided into an air inlet cavity (13) and an air outlet cavity (14) through a baffle assembly, the baffle assembly comprises a left baffle (3), a right baffle (4) and a vertical baffle (5), the left baffle (3) is horizontally arranged and is positioned at the upper side of the air inlet (11), the right baffle (4) is horizontally arranged and is positioned at the lower side of the air outlet (12), and the upper end and the lower end of the vertical baffle (5) are correspondingly connected with the left baffle (3) and the right baffle (4); a bracket plate (6) which is positioned at the upper side of the air outlet (12) and is in a horizontal state is further arranged in the inner cavity of the shell (1), a plurality of vertical coalescing filter elements (7) are arranged between the bracket plate (6) and the right baffle (4), the lower ends of inner holes of the coalescing filter elements (7) are communicated with the air inlet cavity (13), and the upper ends of the inner holes of the coalescing filter elements (7) are closed; the coalescing filter element (7) comprises a vertical filter cartridge (71), and an upper end cover (72) and a lower end cover (73) which are correspondingly fixed at two ends of the filter cartridge (71), wherein the filter cartridge (71) comprises an inner framework (711), a filter layer (712), a coalescing layer (713), an outer framework (714) and an adsorption layer (715) which are sequentially nested from inside to outside, the inner framework (711) is made of a punched plate, the filter layer (712) is made of wood pulp filter paper, the coalescing layer (713) comprises two layers of glass fibers and non-woven fabric sandwiched between the two layers of glass fibers, the non-woven fabric is bonded with the two layers of glass fibers through dispersed points, the outer framework (714) is made of a metal woven mesh, and the adsorption layer (715) is made of all-cotton knitted fabric; an auxiliary adsorption layer (716) made of non-woven fabric is sleeved between the outer framework (714) and the adsorption layer (715); the ends of the filter layer (712) and the coalescing layer (713) are each star-shaped.
2. A direct-buried gas filter according to claim 1, characterized in that the upper end cover (72) comprises an upper inner ring (721) and an upper outer ring (722), the tops of the upper inner ring (721) and the upper outer ring (722) are connected into a whole through an annular upper cover plate (723); the lower end cover (73) comprises a lower inner ring (731) and a lower outer ring (732), and the bottoms of the lower inner ring (731) and the lower outer ring (732) are connected into a whole through an annular lower cover plate (733); the periphery of the upper end of the filter cylinder (71) is clamped between an upper inner ring (721) and an upper outer ring (722) of the upper end cover (72), and the periphery of the lower end of the filter cylinder (71) is clamped between a lower inner ring (731) and a lower outer ring (732) of the lower end cover (73).
3. A direct-buried gas filter according to claim 2, characterized in that the upper side of the upper end cover (72) is provided with an upper sealing washer (74) made of rubber or felt, and the lower side of the lower end cover (73) is provided with a lower sealing washer (75) made of rubber or felt.
4. A direct-burried gas filter according to claim 3, characterized in that the coalescing filter element (7) is connected with the bracket plate (6) and the right baffle plate (4) in the following way: a short pipe (41) which corresponds to the coalescence filter element (7) and is communicated with the air inlet cavity (13) is fixed on the right baffle (4), a support ring (42) is fixed at the upper end of the short pipe (41), guide lugs (43) which are distributed at intervals are fixed on the support ring (42) along the circumferential direction, a connecting nut (44) is fixed on the guide lugs (43), and a pull rod (45) is screwed on the connecting nut (44); coalescence filter core (7) cover is on pull rod (45), and the lower extreme extrusion of coalescence filter core (7) is on support ring (42), and the upper end of coalescence filter core (7) passes the spacing hole that sets up on mounting panel (6), and shutoff dish (46) and lock nut (47) are installed to the upper end of pull rod (45), and shutoff dish (46) extrusion is in the upper end of coalescence filter core (7).
5. A direct-buried gas filter according to claim 4, characterized in that an upper sealing ring (76) made of felt is arranged between the top of the filter cylinder (71) and the upper end cover (72), and a lower sealing ring (77) made of felt is arranged between the bottom of the filter cylinder (71) and the lower end cover (73).
6. The direct-buried gas filter of claim 4, wherein the upper end cover (72), the lower end cover (73), the inner framework (711) and the outer framework (714) are made of stainless steel.
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| CN202010277183.7A CN111389128B (en) | 2020-04-10 | 2020-04-10 | A direct buried gas filter |
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| CN202010277183.7A CN111389128B (en) | 2020-04-10 | 2020-04-10 | A direct buried gas filter |
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| CN111389128B true CN111389128B (en) | 2021-10-15 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111871119A (en) * | 2020-07-25 | 2020-11-03 | 濮阳特睿邦科技发展股份有限公司 | Combined unit type quick-opening filter for low-pressure high-flow coal bed gas purification |
| CN111957117B (en) * | 2020-09-21 | 2025-01-03 | 北京承天倍达过滤技术有限责任公司 | A frameless natural gas filter element structure and installation and fixing method |
| CN112604388B (en) * | 2020-11-12 | 2022-12-09 | 株洲航发动科南方燃气轮机有限公司 | Fuel gas filtering device |
| CN112725049B (en) * | 2020-12-29 | 2022-07-08 | 新乡市大禹过滤设备有限公司 | Natural gas filter element and preparation method thereof |
| CN112957834B (en) * | 2021-03-11 | 2021-11-19 | 中国石油大学(北京) | Switching two-stage coalescence-separation system |
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Denomination of invention: A direct buried gas filter Granted publication date: 20211015 Pledgee: China Zheshang Bank Co.,Ltd. Changzhou Branch Pledgor: Jiangsu Shengwei Gas Technology Co.,Ltd. Registration number: Y2024980002408 |
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Denomination of invention: A direct buried gas filter Granted publication date: 20211015 Pledgee: China Zheshang Bank Co.,Ltd. Changzhou Branch Pledgor: Jiangsu Shengwei Gas Technology Co.,Ltd. Registration number: Y2025980004338 |
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