CN209735201U - Assembly structure of detachable filter - Google Patents
Assembly structure of detachable filter Download PDFInfo
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- CN209735201U CN209735201U CN201920370625.5U CN201920370625U CN209735201U CN 209735201 U CN209735201 U CN 209735201U CN 201920370625 U CN201920370625 U CN 201920370625U CN 209735201 U CN209735201 U CN 209735201U
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Abstract
The utility model relates to an assembly structure of detachable filter. The existing filter is fixedly connected with the adsorption tower and can only be integrally replaced. The utility model discloses an install the filter on predetermineeing the station, the filter includes that base and detachably of rigid coupling on predetermineeing the station install the filter core on the base, be equipped with the gas transmission passageway that the filter core was flowed through to the air current in the filter. The filter is improved to be detachable, the filter element is conveniently and independently replaced during maintenance, the part where the preset station is located can be repeatedly used, and the maintenance cost is effectively reduced. The filter core passes through the base rigid coupling and on predetermineeing the station, and the filter core is flowed through to the outside air through gas transmission channel, ensures the filter effect of filter.
Description
Technical Field
The utility model relates to an oxygen making equipment field, concretely relates to filter.
Background
The existing oxygen generator comprises an adsorption tower filled with molecular sieves, and oxygen and nitrogen separation is realized by utilizing the differential adsorption performance of the molecular sieves on oxygen or nitrogen under different pressures. In order to prolong the service life of the molecular sieve, a filter screen is arranged at the air inlet of the adsorption tower, so that the molecular sieve is prevented from being damaged due to the fact that external foreign matters enter the adsorption tower. The existing adsorption tower comprises a columnar body and a filter screen covering the inner cavity of the body, wherein the periphery of the filter screen is fixedly connected with the side wall of the inner cavity, so that the outside air can contact with the molecular sieve only after passing through the filter screen. The filter screen assembling structure has the following problems: 1. in order to ensure the sealing performance between the edge of the filter screen and the side wall of the inner cavity when the filter screen is subjected to high-pressure airflow, the periphery of the filter screen is generally fixedly connected to the side wall of the inner cavity in a welding mode, so that the filter screen can only be integrally replaced together with the body during maintenance, and the maintenance cost is increased; 2. the size of filter screen is unanimous with the cross street size of inner chamber, both need promote the anti deformability of filter screen through increasing filter screen thickness, has increased raw materials loss and processing cost, still leads to the adsorption tower to influence airflow because of the effective filter area of filter screen is less, and then influences oxygen generation efficiency.
SUMMERY OF THE UTILITY MODEL
in order to solve the defects of the prior art, the utility model provides an assembly structure of detachable filter, the filter core passes through detachable base rigid coupling on predetermineeing the station, both made things convenient for renew cartridge alone, reduces the maintenance cost, effectively increases filter screen area in addition, promotes filtration efficiency, reduces the filter core size again, reduces material cost.
The utility model discloses a following mode realizes: the utility model provides an assembly structure of detachable filter, is including installing the filter on predetermineeing the station, the filter includes that the rigid coupling is at base and the detachably of predetermineeing on the station installs the filter core on the base, be equipped with the gas transmission passageway that the air current flows through the filter core in the filter. The filter is improved to be detachable, the filter element is conveniently and independently replaced during maintenance, the part where the preset station is located can be repeatedly used, and the maintenance cost is effectively reduced. The filter core passes through the base rigid coupling and on predetermineeing the station, and the filter core is flowed through to the outside air through gas transmission channel, ensures the filter effect of filter.
Preferably, the base is circular ring-shaped, a through hole is formed in the middle of the base, the filter element is cylindrical and comprises a filter screen which is curled to be annular and is internally provided with a filter cavity, and after the filter screen is installed in place, the through hole and the filter cavity are communicated in an axial direction and are connected in series to form the gas transmission channel. The filter element is fixedly connected to the base in an inserting mode, the sealing performance between the filter element and the base is guaranteed, and the filter effect is further prevented from being influenced due to the fact that a gap exists between the filter element and the base. The through hole and the filter cavity are coaxially arranged, so that the air flow resistance is effectively reduced, and the filtering efficiency is further improved. Utilize the axial dimension in the adsorption tower to increase the height of filter core, and then increase the effective filtration area of filter core lateral wall, promote the filtration efficiency of filter. The filter core is cyclic annular, has better anti expansion deformation's performance, reduces filter screen thickness from this, reduces raw materials cost.
Preferably, the top edge of the through hole extends inwards and radially to form a limiting ring, a fixing ring is arranged in the through hole, the periphery of the bottom surface of the filter element extends outwards to form a positioning ring, and the filter element passes through the through hole from bottom to top so that the positioning ring is vertically clamped and positioned by the limiting ring and the fixing ring. The filter element passes through the through hole, so that the top surface of the positioning ring is abutted against the bottom surface of the limiting ring, the fixedly connected ring is inserted into the through hole and is matched with the limiting ring to clamp the positioning ring, the filter element is firmly connected with the base, the sealing effect between the filter element and the base is effectively improved, and the situation that unfiltered air is directly leaked is prevented.
Preferably, the diameter of the inner edge of the limiting ring is A, the diameter of the filter element is B, and B is less than A, so that the filter element cannot be separated from the base upwards after being inserted into the through hole from bottom to top. The outer fringe diameter of holding ring is C, the diameter of through-hole is D, and A < C < D ensures to have annular conflict region between holding ring top surface and spacing ring bottom surface, and then promotes both leakproofness.
preferably, the outer side wall of the fixed ring and the inner side wall of the through hole are provided with matched threads, and the fixed ring is screwed in the through hole and clamps and locks the positioning ring in a manner of matching with the limiting ring. The fixing and connecting ring is fixedly connected in the through hole in a threaded connection mode and is matched with the limiting ring to lock the positioning ring. The fixed connection ring is screwed in the through hole, so that the filter element is convenient to disassemble.
Preferably, the middle part of the fixed connection ring is provided with a vent hole, a sealing plate is clamped between the bottom surface of the filter element and the top surface of the fixed connection ring, and the middle part of the sealing plate is provided with a through hole which is axially aligned with the vent hole. The gas transmission channel is connected with the vent holes and the through holes in series, so that stable gas flow transmission is ensured. The sealing plate is used for improving the sealing performance between the top surface of the fixed connection ring and the bottom surface of the positioning ring.
Preferably, the middle part of the periphery of the fixing ring extends outwards to form a connecting ring, and after the fixing ring is installed in place, the connecting ring is tightly lapped on the bottom surface of the base. After the installation targets in place, the go-between is contradicted on the bottom surface of base, both played the effect of restriction excessive insertion through-hole to the rigid coupling ring, still promoted sealing performance through increasing the conflict area.
Preferably, a sealing ring is clamped between the top surface of the connecting ring and the bottom surface of the base, and the diameter of the inner edge of the sealing ring is matched with that of the outer edge of the fixed ring. The sealing ring is used for plugging a gap between the connecting ring and the bottom surface of the base.
Preferably, the assembly structure establishes the adsorption tower that the cylinder held the chamber in including, the adsorption tower is including forming predetermine the bottom plate of station, be equipped with the mounting hole on the bottom plate, the top surface periphery of base is equipped with the heavy platform of annular, and the mounting hole is inserted from bottom to top in the base top to make the mounting hole periphery insert heavy platform and welded fastening, install the back in place, the axis of filter core with the axis that holds the chamber is parallel arrangement each other. The base passes through the welding mode rigid coupling on the bottom plate, ensures that filter core mounted position is fixed, still effectively promotes the sealing performance between bottom plate and base. After the filter element is installed in place, the outer side wall of the filter element is in contact with the side wall of the accommodating cavity, so that air in the filter cavity can radially penetrate through the filter screen and diffuse, and the effective filter area is increased.
Preferably, the diameter of the inner edge of the sinking platform is larger than that of the filter element, so that the top of the base can be smoothly inserted into the mounting hole and fixedly connected, and the filter element can be ensured to be pulled out and detached from the mounting hole.
The utility model has the advantages that: the filter is improved to be detachable, the filter element is conveniently and independently replaced during maintenance, the part where the preset station is located can be repeatedly used, and the maintenance cost is effectively reduced. The filter element is fixedly connected to a preset station through the base, and outside air flows through the filter element through the air transmission channel to ensure the filtering effect of the filter; the height of the filter element is increased by utilizing the axial size in the adsorption tower, so that the effective filtering area of the outer side wall of the filter element is increased, and the filtering efficiency of the filter is improved; the filter core is cyclic annular, has better anti expansion deformation's performance, reduces filter screen thickness from this, reduces raw materials cost.
Drawings
FIG. 1 is a schematic view of the disassembled structure of the present invention;
FIG. 2 is a schematic sectional view of the disassembled structure of the present invention;
FIG. 3 is a partial cross-sectional structural view of the base;
FIG. 4 is a partial cross-sectional view of the fastening ring;
In the figure: 1. the device comprises a base, 2, a filter element, 3, a through hole, 4, a limiting ring, 5, a fixed connection ring, 6, a positioning ring, 7, a sealing plate, 8, a sealing ring, 9, a connecting ring, 10, a mounting hole, 11, an adsorption tower, 12 and a sinking platform.
Detailed Description
The essential features of the invention will be further explained below with reference to the drawings and the detailed description of the invention.
The assembly structure of a detachable filter shown in fig. 1 is composed of a filter installed on a preset station, the filter includes a base 1 fixedly connected to the preset station and a filter element 2 detachably installed on the base 1, and an air transmission channel for air flow to pass through the filter element 2 is arranged in the filter.
In actual operation, filter core 2 installs on predetermineeing the station through base 1, and base 1 both plays the effect that the station was predetermine to the rigid coupling, ensures the mounted position of filter, still plays the effect of rigid coupling filter core 2, ensures that filter core 2 accurate positioning is in predetermineeing the position. The filter includes detachable base 1 and filter core 2, has both ensured filtration efficiency, still conveniently changes filter core 2 alone to make adsorption tower 11 and base 1 can used repeatedly many times, need not the refill molecular sieve, reduce the maintenance cost.
When the base is installed, as shown in fig. 2, firstly, the base 1 is inserted into the installation hole 10 from bottom to top and is fixedly connected, and after the base is installed in place, the periphery of the installation hole 10 is inserted into the sinking platform 12, so that the base and the sinking platform are tightly attached; then, the filter element 2 passes through the through hole 3 from bottom to top in an axial line vertical posture, after the filter element 2 is assembled in place, the filter element is exposed above the base 1, and the top surface of the positioning ring 6 is matched and attached with the bottom surface of the limiting ring 4; then, the sealing plate 7 is placed on the top surface of the fixed connection ring 5, and the sealing ring 8 is sleeved on the fixed connection ring 5 and is lapped with the top surface of the connecting ring 9; finally, the fixing ring 5 is inserted into the through hole 3 from bottom to top and is screwed and locked, after the fixing ring 5 is screwed in place, the top surface of the fixing ring 5 and the bottom surface of the positioning ring 6 tightly clamp the sealing plate 7, the vent hole, the through hole and the filter element 2 are coaxially arranged, and the top surface of the connecting ring 9 and the bottom surface periphery of the base 1 tightly clamp the sealing ring 8.
Realize the filter installation through above-mentioned step, when the user need change filter core 2, realize filter core 2 and base 1 and break away from through the mode of dismantling solid link 5, both the person of facilitating the use dismantles, promotes maintenance efficiency, effectively reduces the maintenance cost in addition.
In actual operation, assembly structure establishes the adsorption tower 11 that the column held the chamber in including, adsorption tower 11 is including forming predetermine the bottom plate of station, be equipped with mounting hole 10 on the bottom plate, base 1's top surface periphery is equipped with the heavy platform 12 of annular (as shown in fig. 3), and base 1 top inserts mounting hole 10 from bottom to top to make mounting hole 10 periphery insert heavy platform 12 and welded fastening, install the back that targets in place, the axis of filter core 2 with the axis that holds the chamber is parallel arrangement each other. The wall surface of the sinking platform 12 is matched and attached with the periphery of the mounting hole 10, and the sealing performance is improved by increasing the contact area. The preferred welding rigid coupling that adopts between heavy platform 12 and mounting hole 10 can also be through spiro union mode rigid coupling to guarantee the leakproofness between the two through the mode of addding the sealing member, should regard as the utility model discloses a specific embodiment.
When using, external high pressure draught loops through the air vent, gets into the filter chamber behind the perforation, and the gas that is located the filter chamber passes through the filter screen in the quadriversal and flows into the chamber that holds of adsorption tower 11, utilizes the height that highly increases filter core 2 that holds the chamber, and then increases the area of 2 lateral walls of filter core to this increases effective filtration area, effectively promotes filtration efficiency under the condition that does not increase and hold the chamber diameter.
In actual operation, base 1 is the ring form, and its middle part is equipped with through-hole 3, filter core 2 is cylindricly, is cyclic annular including curling and establishes the filter screen of filter chamber in, installs the back that targets in place, through-hole 3 with the filter chamber each other is axial to be led to and is established ties and form the gas transmission passageway. The annular filter element 2 has better expansion deformation resistance, can better resist the impact force generated by gas flow, and further reduces the cost of raw materials by reducing the thickness of the filter screen.
In actual operation, the top edge of the through hole 3 extends inwards and radially to form a limiting ring 4, a fixing ring 5 is arranged in the through hole 3, the periphery of the bottom surface of the filter element 2 extends outwards to form a positioning ring 6, and the filter element 2 passes through the through hole 3 from bottom to top, so that the positioning ring 6 is vertically clamped and positioned by the limiting ring 4 and the fixing ring 5. The limiting ring 4 can not only ensure the filter element 2 to be exposed by utilizing the middle space, but also limit the positioning ring 6. The diameter of the inner edge of the limiting ring 4 is A, the diameter of the filter element 2 is B, B is less than A, the difference value between the parameter A and the parameter B is smaller, which means that the gap between the outer side wall of the filter element 2 and the inner edge of the limiting ring 4 is smaller, the effective filtering area is increased by increasing the diameter of the filter element 2, the filter element 2 can smoothly pass through the limiting ring 4, and smooth assembly is ensured.
In practical operation, the diameter of the outer edge of the positioning ring 6 is C, the diameter of the through hole 3 is D, and A is more than C and less than D. Guarantee to have great area of contact between spacing ring 4 and holding ring 6 through setting up reasonable parameter A, parameter C and parameter D, and then promote the centre gripping dynamics to closing plate 7, effectively improve sealing performance.
In actual operation, the outer side wall of the fixed connection ring 5 and the inner side wall of the through hole 3 are provided with matched threads, and the fixed connection ring 5 is screwed in the through hole 3 and clamps and locks the positioning ring 6 in a manner of matching with the limiting ring 4. The fixedly connected ring 5 is fixedly connected with the through hole 3 through threads, the clamping sealing plate 7 and the sealing ring 8 can be clamped by threads, the sealing performance between the contact surfaces of the clamping sealing plate and the sealing ring is improved, the fixedly connected ring 5 is also convenient to disassemble, and the filter element 2 is convenient to maintain and replace.
In actual operation, the middle part of the fixed connection ring 5 is provided with a vent hole, a sealing plate 7 is clamped between the bottom surface of the filter element 2 and the top surface of the fixed connection ring 5, and the middle part of the sealing plate 7 is provided with a through hole which is axially aligned with the vent hole. The sealing plate 7 is matched and attached with the bottom surface of the limiting plate and the top surface of the locating plate by utilizing self deformation, and the air flow in the air transmission channel is effectively prevented from leaking between the fixed connection ring 5 and the through hole 3 outwards through a gap between the locating plate and the limiting plate. The diameters of the through hole and the vent hole are matched with each other, so that the equal-diameter arrangement of each section of the gas transmission channel is ensured, and the stable flow rate of the gas flow is ensured.
In practice, the middle of the periphery of the fastening ring 5 extends outward to form a connection ring 9 (as shown in fig. 4), and after the fastening ring 5 is installed in place, the connection ring 9 closely overlaps the bottom surface of the base 1. The connecting ring 9 and the fixed connection ring 5 are arranged in an integrated manner, so that the connecting ring 9 can be matched with the base 1 to clamp the sealing ring 8 under the screwing action of the fixed connection ring 5. A sealing ring 8 is clamped between the top surface of the connecting ring 9 and the bottom surface of the base 1, and the diameter of the inner edge of the sealing ring 8 is matched with the diameter of the outer edge of the fixed connection ring 5. The sealing ring 8 plays a role in plugging a gap between the fixed connection ring 5 and the base 1, and prevents the gas in the accommodating cavity from leaking to the external space through the gap between the base 1 and the fixed connection ring 5. The fixed connection ring is provided with threads at one side of the connection ring and a screw joint acting point at the other side.
In practice, the inner rim of the sink 12 has a diameter greater than the diameter of the filter element 2. Preferably, the diameter of the inner edge of the sinking platform 12 is larger than that of the inner edge of the limiting ring 4, and the diameter of the inner edge of the limiting ring 4 is larger than that of the filter element 2, so that the base 1 and the mounting hole 10 are ensured to be mounted, and the base 1 and the filter element 2 are ensured to be mutually interfered.
Claims (10)
1. The utility model provides an assembly structure of detachable filter, is including installing the filter on predetermineeing the station, its characterized in that, the filter includes that base (1) and detachably of rigid coupling on predetermineeing the station install filter core (2) on base (1), be equipped with the gas transmission passageway that the air feed stream flowed through filter core (2) in the filter.
2. The assembly structure of a detachable filter according to claim 1, wherein the base (1) is circular, a through hole (3) is formed in the middle of the base, the filter element (2) is cylindrical and comprises a filter screen which is curled to be circular and is internally provided with a filter cavity, and after the filter screen is installed in place, the through hole (3) and the filter cavity are communicated with each other in the axial direction and are connected in series to form the gas transmission channel.
3. The assembling structure of a detachable filter according to claim 2, wherein the top edge of the through hole (3) extends radially inward to form a limiting ring (4), a fastening ring (5) is disposed in the through hole (3), the bottom periphery of the filter element (2) extends outward to form a positioning ring (6), and the filter element (2) passes through the through hole (3) from bottom to top, so that the positioning ring (6) is vertically clamped and positioned by the limiting ring (4) and the fastening ring (5).
4. A detachable filter assembly structure according to claim 3, wherein the diameter of the inner edge of the limit ring (4) is a, the diameter of the filter element (2) is B, B < a, the diameter of the outer edge of the positioning ring (6) is C, the diameter of the through hole (3) is D, a < C < D.
5. A detachable filter assembly structure according to claim 3, wherein the outer side wall of the fixing ring (5) and the inner side wall of the through hole (3) are provided with matching threads, and the fixing ring (5) is screwed in the through hole (3) and clamps and locks the positioning ring (6) in cooperation with the limiting ring (4).
6. A removable filter assembly as claimed in claim 3, wherein said fastening ring (5) has a central vent hole, and a sealing plate (7) is held between the bottom surface of the filter element (2) and the top surface of the fastening ring (5), said sealing plate (7) having a central bore axially aligned with said vent hole.
7. A detachable filter assembly structure according to claim 3, wherein the middle of the periphery of the fixing ring (5) extends outward to form a connection ring (9), and after the fixing ring (5) is installed in place, the connection ring (9) is tightly overlapped on the bottom surface of the base (1).
8. A detachable filter assembly according to claim 7, characterised in that a sealing ring (8) is clamped between the top surface of the connection ring (9) and the bottom surface of the base (1), the diameter of the inner edge of the sealing ring (8) matching the diameter of the outer edge of the fastening ring (5).
9. The assembling structure of a detachable filter according to any one of claims 1 to 8, wherein the assembling structure comprises an adsorption tower (11) with a cylindrical accommodating cavity therein, the adsorption tower (11) comprises a bottom plate forming the preset station, the bottom plate is provided with a mounting hole (10), the periphery of the top surface of the base (1) is provided with an annular sinking platform (12), the top of the base (1) is inserted into the mounting hole (10) from bottom to top, so that the periphery of the mounting hole (10) is inserted into the sinking platform (12) and is welded and fixed, and after the assembling structure is installed in place, the axis of the filter element (2) and the axis of the accommodating cavity are arranged in parallel.
10. A removable filter assembly as claimed in claim 9, wherein the diameter of the inner edge of the platform (12) is greater than the diameter of the filter cartridge (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920370625.5U CN209735201U (en) | 2019-03-22 | 2019-03-22 | Assembly structure of detachable filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920370625.5U CN209735201U (en) | 2019-03-22 | 2019-03-22 | Assembly structure of detachable filter |
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| Publication Number | Publication Date |
|---|---|
| CN209735201U true CN209735201U (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920370625.5U Active CN209735201U (en) | 2019-03-22 | 2019-03-22 | Assembly structure of detachable filter |
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| Country | Link |
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| CN (1) | CN209735201U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513703A (en) * | 2021-07-07 | 2021-10-19 | 中车长江运输设备集团有限公司 | Detachable low-temperature filtering device of liquid hydrogen storage tank, special assembling tool and using method thereof |
-
2019
- 2019-03-22 CN CN201920370625.5U patent/CN209735201U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513703A (en) * | 2021-07-07 | 2021-10-19 | 中车长江运输设备集团有限公司 | Detachable low-temperature filtering device of liquid hydrogen storage tank, special assembling tool and using method thereof |
| CN113513703B (en) * | 2021-07-07 | 2023-08-04 | 中车长江运输设备集团有限公司 | Detachable low-temperature filtering device for liquid hydrogen storage tank, special assembly tool for detachable low-temperature filtering device and use method of detachable low-temperature filtering device |
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