CN203196490U - Improved structure of ultralow-temperature high-pressure filter core of air-separation expander - Google Patents
Improved structure of ultralow-temperature high-pressure filter core of air-separation expander Download PDFInfo
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- CN203196490U CN203196490U CN 201320135505 CN201320135505U CN203196490U CN 203196490 U CN203196490 U CN 203196490U CN 201320135505 CN201320135505 CN 201320135505 CN 201320135505 U CN201320135505 U CN 201320135505U CN 203196490 U CN203196490 U CN 203196490U
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- filter core
- filter
- orifice plate
- temperature high
- decompressor
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Abstract
The utility model discloses an improved structure of an ultralow-temperature high-pressure filter core of an air-separation expander. The filter core comprises a cylindrical orifice plate and a filter screen, wherein support rings are arranged at two end parts of the filter core, finish-machining sealing surfaces are arranged at the outer ends of the support rings and are connected with the sealing surface at the inner side of a filter body, and a PTFE (polytetrafluoroethylene) washer is additionally arranged between the sealing surfaces so as to ensure the sealing. A piece of detachable wool felt is arranged at the inner side of the filter screen and plays a role in protecting the filter screen in test run. The support rings, the orifice plate, the filter screen and the wool felt are connected by screws so as to facilitate the attachment and the detachment. The utility model mainly aims at providing the improved structure of the ultralow-temperature high-pressure filter core of the air-separation expander, which is safe and reliable and relatively good in filtering effect.
Description
Technical field
The utility model relates to the ultralow temperature high pressure filter of the supporting decompressor of air separation equipment, mainly relates to a kind of empty improvement structure of dividing the ultralow temperature high pressure filter filter core of decompressor.
Background technology
Air separation equipment is a kind of complexes that utilize distillation technology that airborne each component is separated, and rare gas such as nitrogen, oxygen, argon gas and krypton xenon are provided for fields such as metallurgy, petrochemical industry, chemical industry, medical treatment.Decompressor plays key effect in a whole set of air separation plant, be one of heart portion machine of air separation plant, and major function is to provide required whole cold for sky divides rectifying column, and the stable operation of decompressor is to guarantee that air separation plant continues the key of producing.In addition, decompressor is very accurate and shared cost is higher, and it is more careful than other equipment to need in the operation of air separation plant, maintenance process.
Divide the test run stage at sky, the impurity in the whole piping is more, therefore as shown in Figure 1, often in the decompressor porch filter 1 is set.As Fig. 2, shown in Figure 3, original filter core 2, owing to have only filter screen 4 and orifice plate 3 double-layer structures, filter screen 4 is connected with metal bound edge 9 at two ends with orifice plate 3.The impurity in test run stage may damage filter screen 4, the more important thing is, does not consider filter core 2 and filter 1, the sealing of contact-making surface, have the partial impurities may obstructed screen pack 4 and directly enter decompressor like this, serious words may be damaged decompressor, cause producing and security incident.
Summary of the invention
The utility model is in order to overcome the improvement structure that sky common in the prior art divides decompressor ultralow temperature high pressure filter filter core, damage easily in the test run stage, and filter effect is not good, not screen pack and directly enter decompressor of partial impurities is arranged in the process of filtering, thereby decompressor is caused the deficiency of damage, provide a kind of more safe and reliable, filter effect is empty improvement structure of dividing decompressor ultralow temperature high pressure filter filter core better.
To achieve these goals, the utility model is by the following technical solutions:
A kind of empty improvement structure of dividing decompressor ultralow temperature high pressure filter filter core of the present utility model, filter core comprises the cylindrical shape orifice plate, described cylindrical shape orifice plate inboard is provided with filter screen, described filter core two inner ends are provided with support ring respectively, the outer end of described support ring axially protrudes from orifice plate and forms bulge loop, described bulge loop external diameter is greater than the external diameter of filter core, and described filter core and support ring are fastenedly connected.Respectively increase a support ring at the two ends of filter core, the outer end of support ring axially outwards forms bulge loop along it, and the bulge loop external diameter is greater than the external diameter of filter core, and described filter core and support ring are fastenedly connected.Bulge loop and filter body contact-making surface all adopt mach sealing plane; thereby can avoid partial impurities directly to enter decompressor without filter screen; one can improve the filter filter effect greatly, can play the effect of protection simultaneously to decompressor.Support ring is socketed on the inner end of filter core, and support ring outwards protrudes vertically and forms bulge loop, and the bulge loop external diameter is greater than the external diameter of filter core, and the bulge loop on the support ring can be with the end clamping of cylindrical shape orifice plate.
As preferably, described filter screen is provided with bound edge with the end of cylindrical shape orifice plate and is connected.The end of filter screen and cylindrical shape orifice plate is provided with bound edge, can guarantee connecting of filter screen and cylindrical shape orifice plate, improves the firmness that filter screen is connected with the cylindrical shape orifice plate.
As preferably, described filter core inside is provided with wool felt.Filter core inside has increased one deck wool felt, uses when the air separation unit test run.Be used for filtering some sharp-pointed impurity, the protection steel wire.After the test run, treating needs to remove after the inner impurity basic filtering of whole device finishes.
As preferably, described cylindrical shape orifice plate, filter screen and wool felt are connected with support ring by screw.Because the cylindrical shape orifice plate is to be fixed on the support ring with screw, can easily dismantle wool felt, also convenient the and later stage is changed the damaged filter screen of possibility.
As preferably, be provided with pad between described screw and the cylindrical shape orifice plate.In order to increase the reliability of connection, simultaneously the cylindrical shape orifice plate is played protection and avoid in use wearing and tearing with screw.
As preferably, be provided with the PTFE pad between described support ring and the filter body.Bulge loop and filter body contact-making surface all adopt mach sealing plane, and add the PTFE pad to reach better sealing effectiveness in the middle of sealing surface.
Therefore, the utlity model has following beneficial effect: after improving, respectively increase a support ring at the two ends of filter screen, adopt the machined sealing by the bulge loop on the support ring and filter body contact-making surface, one can improve the filter filter effect, can play the effect of protection simultaneously to decompressor; Filter core inside has increased one deck wool felt, uses when the air separation unit test run, is used for filtering some sharp-pointed impurity; the protection steel wire; because filter core is to be fixed on the support ring with screw, can easily dismantle wool felt, also convenient the and later stage is changed the damaged filter screen of possibility.
Description of drawings
Fig. 1 is former filter assembling schematic diagram;
Fig. 2 is former filter cartridge arrangement schematic diagram;
Fig. 3 is the partial enlarged drawing of Y part among Fig. 2;
Fig. 4 is the utility model filter cartridge arrangement schematic diagram;
Fig. 5 is the partial enlarged drawing of X part among Fig. 4.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Embodiment: as Fig. 4, shown in Figure 5, a kind of empty improvement structure of dividing decompressor ultralow temperature high pressure filter filter core of utility model, filter core 21 comprises cylindrical shape orifice plate 31, cylindrical shape orifice plate 31 inboards are provided with filter screen 41, filter core 21 two ends are respectively equipped with support ring 5, and the outer end of support ring 5 axially outwards forms bulge loop 51 along it.Respectively increase a gasket ring 5 at the two ends of filter core 21; the outer end of gasket ring 5 axially protrudes from orifice plate and forms bulge loop 51; bulge loop 51 adopts the machined sealing surface with the filter body contact-making surface; add PTFE pad 91 between the sealing surface; thereby can avoid partial impurities directly to enter decompressor without filter screen 41; one can improve the filter filter effect, can play the effect of protection simultaneously to decompressor.Support ring 5 is socketed on the inner end of filter core 21 respectively.Support ring 5 is socketed on the inner end of filter core 21, thereby the diameter that can reduce support ring 5 reduces production costs, the external diameter of bulge loop 51 is greater than the external diameter of filter core 21, and the bulge loop 51 on the support ring 5 can be with the end clamping of cylindrical shape orifice plate 31.Filter screen 41 is provided with bound edge 9 with the end of cylindrical shape orifice plate 31 and is connected.Filter screen 41 is provided with bound edge 9 with the end of cylindrical shape orifice plate 31, can guarantee the bonding of filter screen 41 and cylindrical shape orifice plate 31, improves the firmness that filter screen 41 is connected with cylindrical shape orifice plate 31.Filter core 21 inside are provided with wool felt 6.Filter core 21 inside have increased one deck wool felt 6, use when the air separation unit test run.Be used for filtering some sharp-pointed impurity, the protection steel wire.After the test run, treating needs to remove after the inner impurity basic filtering of whole device finishes.Cylindrical shape orifice plate 31, filter screen and wool felt 6 are connected with support ring 5 by screw 7.Because cylindrical shape orifice plate 31 is to be fixed on the support ring 5 with screw, can easily dismantle wool felt 6, also convenient the and later stage is changed the damaged filter screen 41 of possibility.Be provided with pad 8 between screw 7 and the cylindrical shape orifice plate 31.In order to increase the reliability of connection, simultaneously cylindrical shape orifice plate 31 is played protection and avoid in use wearing and tearing with screw 7.
When mounted: as Fig. 4, shown in Figure 5, with wool felt 6 on the internal sleeve of filter core 21, be connected with support ring 5 by screw 7, again filter core 21 be installed in the filter.
Claims (6)
1. empty improvement structure of dividing decompressor ultralow temperature high pressure filter filter core, filter core comprises the cylindrical shape orifice plate, described cylindrical shape orifice plate inboard is provided with filter screen, it is characterized in that: described filter core two inner ends are provided with support ring respectively, the outer end of described support ring axially protrudes from orifice plate and forms bulge loop, described bulge loop external diameter is greater than the external diameter of filter core, and described filter core and support ring are fastenedly connected.
2. sky according to claim 1 divides the improvement structure of decompressor ultralow temperature high pressure filter filter core, and it is characterized in that: described filter screen is provided with bound edge with the end of cylindrical shape orifice plate and is connected.
3. sky according to claim 1 and 2 divides the improvement structure of decompressor ultralow temperature high pressure filter filter core, and it is characterized in that: described filter core inside also is provided with wool felt.
4. sky according to claim 3 divides the improvement structure of decompressor ultralow temperature high pressure filter filter core, and it is characterized in that: described cylindrical shape orifice plate, filter screen and wool felt are connected with support ring by screw.
5. empty improvement structure of dividing decompressor ultralow temperature high pressure filter filter core according to claim 4 is characterized in that: be provided with pad between described screw and the cylindrical shape orifice plate.
6. empty improvement structure of dividing decompressor ultralow temperature high pressure filter filter core according to claim 1 and 2 is characterized in that: be provided with the PTFE pad between described support ring and the filter body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320135505 CN203196490U (en) | 2013-03-25 | 2013-03-25 | Improved structure of ultralow-temperature high-pressure filter core of air-separation expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320135505 CN203196490U (en) | 2013-03-25 | 2013-03-25 | Improved structure of ultralow-temperature high-pressure filter core of air-separation expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203196490U true CN203196490U (en) | 2013-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320135505 Expired - Lifetime CN203196490U (en) | 2013-03-25 | 2013-03-25 | Improved structure of ultralow-temperature high-pressure filter core of air-separation expander |
Country Status (1)
| Country | Link |
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| CN (1) | CN203196490U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104771968A (en) * | 2015-03-19 | 2015-07-15 | 中国科学院等离子体物理研究所 | Detachable high-precision low-temperature filter for helium low-temperature system turbo-expander |
-
2013
- 2013-03-25 CN CN 201320135505 patent/CN203196490U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104771968A (en) * | 2015-03-19 | 2015-07-15 | 中国科学院等离子体物理研究所 | Detachable high-precision low-temperature filter for helium low-temperature system turbo-expander |
| CN104771968B (en) * | 2015-03-19 | 2016-08-24 | 中国科学院等离子体物理研究所 | Cryogenic system turbo-expander detachably high accuracy profound hypothermia filter |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130918 |