CN214552051U - Rotational flow high pressure difference filter - Google Patents

Rotational flow high pressure difference filter Download PDF

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CN214552051U
CN214552051U CN202120653892.0U CN202120653892U CN214552051U CN 214552051 U CN214552051 U CN 214552051U CN 202120653892 U CN202120653892 U CN 202120653892U CN 214552051 U CN214552051 U CN 214552051U
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core
filter
core body
holes
high pressure
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高炜
张一帆
杨浦
李凯伦
杨玉
乔永强
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Xian Thermal Power Research Institute Co Ltd
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Xian Thermal Power Research Institute Co Ltd
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Abstract

The utility model discloses a whirl high pressure difference filter, this filter include the core, and the core is including welded connection's gasket, core changeover portion, core slab, core settlement section and core end in proper order. The utility model discloses the filter has adopted the preparation of 4-6mm corrosion resistant plate, the intensity problem that pressure differential arouses around enough satisfying the filter screen, adopt the chemical etching technique to etch out 0.3 mm's small passageway on the steel sheet, be enough to satisfy the filtration demand, and simultaneously, the entry is responsible for the section with the filter and is tangent, the air current tangential gets into the filter, the air current flows downwards along the axial simultaneously in the filter internal rotation, impurity is to diffusion all around under the effect of centrifugal force, subside downwards at last, the lower part design of filter has the settlement section, the filter core of settlement section does not have the cavity, it is visual to be the blind spot, the velocity of flow is slow, the space has been created for solid impurity's subsidence, therefore, this filter can enough bear the high-pressure differential, filter tiny granule, and the filter effect is better.

Description

Rotational flow high pressure difference filter
Technical Field
The utility model relates to a design and manufacturing of filter, concretely relates to whirl high pressure difference filter.
Background
Printed circuit plate heat exchangers (PCHE) belong to the category of microchannel plate heat exchangers. The PCHE has the advantages of compact structure, high temperature resistance, heat transfer resistance, safety, reliability and the like, and is widely applied in the fields of refrigeration and air conditioning, petroleum and natural gas, nuclear industry, chemical industry, electric power industry and the like. However, such heat exchangers also have some drawbacks in use, the main problems being that the PCHE heat exchanger channels are too small to be easily clogged and difficult to clean once clogged. Therefore, a filter is generally required to be installed before the inlet of the heat exchanger.
However, the PCHE heat exchanger has very small channels to achieve the effect of the micro-channel heat exchanger, and therefore the aperture of the filter screen must be smaller than the diameter of the channel of the PCHE heat exchanger. The diameter of the PCHE heat exchanger is about 1mm, and the aperture of the filter screen is about 0.3 mm. On the other hand, PCHE heat exchangers are generally used in high pressure situations, and once the filter screen is blocked, the pressure drop across the PCHE heat exchanger is very large, so that the filter screen may need to bear very large pressure across the PCHE heat exchanger. However, the current filter screen has a large aperture, which cannot meet the filtering requirement, the filter screen with the small aperture mostly adopts a metal wire mesh support, the wire diameter of the woven wire mesh is very small, the wire mesh is very thin, and a little wire mesh is blocked, which generally cannot bear huge front and back pressure difference, thereby causing the wire mesh to break. Therefore, a strong and durable filter screen which is easy to replace and can meet the filtering requirement is urgently needed.
Disclosure of Invention
In order to overcome the problems existing in the prior art, the utility model aims to provide a whirl high pressure differential filter, the utility model discloses the filter can enough bear the high pressure differential, filters tiny granule to the filter effect is better.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a rotational flow high pressure difference filter comprises a core body 1 and a shell body 2 which is coaxially arranged with the core body 1, wherein the core body 1 comprises gaskets 1-5, a core body transition section 1-4, a core body sheet 1-1, a core body settlement section 1-2 and core body end heads 1-3 which are sequentially welded and connected, the large diameter end of the core body transition section 1-4 is connected with the gaskets 1-5, the small diameter end of the core body sheet 1-1 is connected with the core body sheet 1-1, through holes are arranged on the core body sheet 1-1 in a rectangular array shape to serve as filtering holes, and the core body settlement section 1-2 is not provided with the through holes; the side wall of the shell 2 is communicated with an inlet pipeline 2-1, the inlet pipeline 2-1 is tangent to a shell main body pipe section, a preset included angle is formed between the inlet pipeline 2-1 and the shell main body pipe, and the pipe orifice of the inlet pipeline inclines towards the outlet direction; the filter is directly arranged inside the straight pipe section at the inlet of the heat exchanger through gaskets 1-5 of the core body 1 and a flange at the end part of the shell 2.
The core plate 1-1 is spirally curled into a cylinder shape by adopting a stainless steel plate with a through hole and a thickness of 4-6 mm.
The diameter of each through hole formed in the core plate 1-1 in a rectangular array shape is 0.3mm, and the center distance between the through holes in the horizontal direction and the center distance between the through holes in the vertical direction are both 0.6 mm.
The core body end 1-3 is manufactured by stamping a stainless steel plate with the thickness of 4-6mm into a hemispherical shape.
The inlet pipeline 2-1 and the shell body pipeline form an included angle of 80 degrees.
The rotational flow high pressure difference filter and the manufacturing method thereof comprise the following steps:
step 1: manufacturing of core sheet 1-1: the core plate 1-1 is made of a 4-6mm stainless steel plate, firstly, the steel plate is cut into a rectangle, the specific size is adjusted according to the size of a filter, then through holes with the diameter of 0.3mm are etched on the stainless steel plate by adopting an etching technology to serve as filtering holes, the through holes are uniformly distributed in a rectangular array, the center distance between the horizontal direction and the vertical direction is 0.6mm, then, the stainless steel plate with the processed filtering holes is curled into a cylinder, the edge gaps of the plate are welded by argon arc welding, and finally, the two ends of the cylinder-shaped filter element are cut flat by adopting a cutting machine and are polished to remove burrs;
step 2: manufacturing a core settling section 1-2: the core settlement section 1-2 is also made of a stainless steel plate with the thickness of 4-6mm, the manufacturing process is the same as that of the core plate 1-1, and through holes are not required to be etched;
and step 3: manufacturing core transition sections 1-4: the core body transition section 1-4 is made of a stainless steel plate with the thickness of 4-6mm, the cut straight steel plate is curled into a cone shape, the edge of the butt joint is welded by argon arc welding, and burrs are removed by polishing;
and 4, step 4: manufacturing core end heads 1-3: the core body end 1-3 is manufactured by stamping a stainless steel plate with the thickness of 4-6mm into a hemispherical shape;
and 5: assembling the core body 1: welding one end of a processed cylindrical core plate 1-1 with the small-diameter end of a core transition section 1-4, welding the other end of the processed cylindrical core plate with one end of a core settlement section 1-2, welding the other end of the core settlement section 1-2 with a core end 1-3, and welding the large-diameter end of the core transition section 1-4 with a gasket 1-5, wherein argon arc welding is adopted;
step 6: manufacturing the housing 2 and assembling the core 1 and the housing 2: the main pipeline of the shell body is a straight pipeline which is 30-50mm longer than the assembled core body 1, a hole is formed at a position which is 70-80mm away from the end head and close to one end of the straight pipeline, the aperture is the same as the inner diameter of an inlet pipeline, the outer wall of the hole is tangent to the inner wall of the main pipeline, the hole is welded into an inlet pipeline 2-1, and an included angle of 80 degrees is formed between the inlet pipeline 2-1 and a main pipeline; flanges are welded at the two ends of the straight pipeline and the outer end of the inlet pipeline; the assembled core 1 is then inserted into the housing 2 with the padded end of the assembled core 1 adjacent the inlet conduit end of the housing 2.
The stainless steel plate adopted by the core plate 1-1 has the width of 0.15-0.25mm and the length of 1.4-1.6 m.
The stainless steel plate with the processed filter holes is curled into a cylinder according to the diameter of 0.18m and the screw pitch of 0.2 m.
The utility model discloses following beneficial effect has:
the utility model can overcome the problem that the filter screen of the prior PCHE heat exchanger is easy to break and is not easy to meet the filtering requirement, the utility model adopts the 4-6mm stainless steel plate to manufacture, which can sufficiently meet the intensity problem caused by the pressure difference between the front and the back of the filter screen, adopts the chemical etching technology to etch a 0.3mm micro channel on the steel plate, which can sufficiently meet the filtering requirement, simultaneously, the inlet pipeline of the shell is tangent with the main pipeline section of the filter, the air flow enters the filter tangentially, the air flow flows downwards along the axial direction in the filter while flowing in the rotation, the impurities diffuse all around under the action of the centrifugal force, finally subside downwards, the lower part of the filter core is designed with the core settlement section, the filter core of the core settlement section has no through hole, can be regarded as dead zone, the flow speed is slow, and space is created for the settlement of the solid impurities, therefore, the utility model can bear the high pressure difference, fine particles are filtered, and the filtering effect is good.
Drawings
FIG. 1 is a schematic cross-sectional view of a filter.
Fig. 2 is a schematic view of the housing.
Fig. 3 is an overall schematic view of the filter screen core.
Fig. 4 is a schematic view of a core straight sheet.
Fig. 5 is a schematic view of the crimping of the core plates.
Fig. 6 is a schematic diagram of the core sheet after cutting the head and the tail.
Figure 7 is a schematic diagram of the core settling section.
FIG. 8 is a schematic view of a core transition section.
Fig. 9 is a schematic view of a core end.
FIG. 10 is a schematic view of a gasket.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings:
as shown in fig. 1, fig. 2 and fig. 3, the cyclone high pressure difference filter of the present invention comprises a core 1 and a housing 2 coaxially disposed with the core 1, wherein the core 1 comprises gaskets 1-5, core transition sections 1-4, core sheets 1-1, core settlement sections 1-2 and core ends 1-3, which are sequentially welded and connected, wherein the core transition sections 1-4 are connected with the gaskets 1-5 at the large diameter end, the core sheets 1-1 are connected with the small diameter end, through holes are disposed in the core sheets 1-1 in a rectangular array shape to serve as filtering holes, and the core settlement sections 1-2 are not disposed with through holes; the side wall of the shell 2 is communicated with an inlet pipeline 2-1, the inlet pipeline 2-1 is tangent to a shell main body pipe section, a preset included angle is formed between the inlet pipeline 2-1 and the shell main body pipe, and the pipe orifice of the inlet pipeline inclines towards the outlet direction; the filter is directly arranged inside the straight pipe section at the inlet of the heat exchanger through gaskets 1-5 of the core body 1 and a flange at the end part of the shell 2.
As shown in fig. 4, 5 and 6, as a preferred embodiment of the present invention, the core sheet 1-1 is spirally wound into a cylindrical shape using a stainless steel plate having a thickness of 4 to 6mm and through holes. The diameter of each through hole formed in the core plate 1-1 in a rectangular array shape is 0.3mm, and the center distance between the through holes in the horizontal direction and the center distance between the through holes in the vertical direction are both 0.6 mm.
As shown in fig. 9, as a preferred embodiment of the present invention, the core tip 1-3 is made by stamping a stainless steel plate with a thickness of 4-6mm into a hemispherical shape.
As a preferred embodiment of the present invention, the inlet pipe 2-1 and the casing main pipe form an angle of 80 degrees.
The utility model discloses a whirl high pressure differential filter and manufacturing method, including following step:
step 1: manufacturing of core sheet 1-1: the core plate 1-1 is made of a stainless steel plate with the diameter of 4-6mm, as shown in figure 4, firstly, the steel plate is cut into a rectangle, the specific size is adjusted according to the size of a filter, then through holes with the diameter of 0.3mm are etched on the stainless steel plate by adopting an etching technology and are used as filtering holes, the through holes are uniformly distributed in a rectangular array, the center distance in the horizontal direction and the center distance in the vertical direction are both 0.6mm, then as shown in figure 5, the stainless steel plate with the processed filtering holes is curled into a cylinder, the edge gaps of the plate are welded by argon arc welding, finally, two ends of the cylinder-shaped filter element are cut flat by a cutting machine, and burrs are removed by grinding, and the manufactured shape is as shown in figure 6;
step 2: manufacturing a core settling section 1-2: the core settlement section 1-2 is also made of a 4-6mm stainless steel plate, the manufacturing process is the same as that of the core plate 1-1, only through holes do not need to be etched, and the manufactured shape is shown in figure 7;
and step 3: manufacturing core transition sections 1-4: as shown in fig. 8, the core transition sections 1-4 are made of 4-6mm stainless steel plates, the cut straight steel plates are curled into a cone shape, the edges of the butt joints are welded by argon arc welding, and burrs are ground to remove, and the manufactured shape is as shown in fig. 8;
and 4, step 4: manufacturing core end heads 1-3: the core body end 1-3 is manufactured by stamping a stainless steel plate with the thickness of 4-6mm into a semispherical shape, and the manufactured shape is shown in figure 9;
and 5: assembling the core body 1: welding one end of a processed cylindrical core plate 1-1 with the small-diameter end of a core transition section 1-4, welding the other end of the processed cylindrical core plate with one end of a core settlement section 1-2, welding the other end of the core settlement section 1-2 with a core end 1-3, welding the large-diameter end of the core transition section 1-4 with a gasket 1-5, and adopting argon arc welding to weld, wherein the manufactured shape is shown in figure 3;
step 6: manufacturing the housing 2 and assembling the core 1 and the housing 2: the main pipeline of the shell body is a straight pipeline which is 30-50mm longer than the assembled core body 1, a hole is formed at a position which is 70-80mm away from the end head and close to one end of the straight pipeline, the aperture is the same as the inner diameter of an inlet pipeline, the outer wall of the hole is tangent to the inner wall of the main pipeline, the hole is welded into an inlet pipeline 2-1, and an included angle of 80 degrees is formed between the inlet pipeline 2-1 and a main pipeline; flanges are welded at the two ends of the straight pipeline and the outer end of the inlet pipeline; the assembled core 1 is then inserted into the housing 2 with the padded end of the assembled core 1 adjacent to the inlet duct end of the housing 2, and the finished shape is shown in figures 1 and 2.
As a preferred embodiment of the present invention, the core sheet 1-1 is made of stainless steel having a width of 0.15-0.25mm and a length of 1.4-1.6 m.
As a preferred embodiment of the present invention, the stainless steel plate with the processed filter holes is curled into a cylindrical shape according to a diameter of 0.18m and a pitch of 0.2 m.
As shown in fig. 10, a schematic view of the shims 1-5 is shown.
The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (7)

1. A rotational flow high pressure difference filter is characterized by comprising a core body (1) and a shell (2) which is coaxial with the core body (1), wherein the core body (1) comprises gaskets (1-5), core body transition sections (1-4), core body sheets (1-1), core body settlement sections (1-2) and core body end heads (1-3) which are sequentially welded and connected, the large-diameter end of each core body transition section (1-4) is connected with one gasket (1-5), the small-diameter end of each core body sheet (1-1) is connected with the corresponding core body sheet, through holes serving as filter holes are formed in the corresponding core body sheet (1-1) in a rectangular array shape, and the corresponding core body settlement section (1-2) is not provided with the through holes; the side wall of the shell (2) is communicated with an inlet pipeline (2-1), the inlet pipeline (2-1) is tangent to a shell main body pipe section, a preset included angle is formed between the inlet pipeline (2-1) and the shell main body pipe, and the pipe orifice of the inlet pipeline inclines towards the outlet direction; the filter is directly installed inside a straight pipe section at the inlet of the heat exchanger through gaskets (1-5) of the core body (1) and flanges at the end part of the shell (2).
2. A cyclonic high pressure difference filter as claimed in claim 1, wherein the core sheets (1-1) are spirally wound in a cylindrical shape using a stainless steel plate with a thickness of 4-6mm and through holes.
3. A cyclone high differential pressure filter according to claim 2, characterized in that the core plates (1-1) are made of stainless steel plates with a width of 0.15-0.25mm and a length of 1.4-1.6 m.
4. A cyclone high pressure difference filter according to claim 2, wherein the stainless steel plate with the processed filtering holes is curled into a cylindrical shape according to a diameter of 0.18m and a pitch of 0.2 m.
5. A cyclone high differential pressure filter according to claim 1, characterized in that the diameter of the through holes arranged in a rectangular array on the core plate (1-1) is 0.3mm, and the center distance between the through holes in the horizontal and vertical directions is 0.6 mm.
6. A cyclonic high pressure difference filter as claimed in claim 1, wherein the core tips (1-3) are formed by stamping from 4-6mm stainless steel sheet into a hemispherical shape.
7. A cyclonic high pressure difference filter according to claim 1, wherein the inlet duct (2-1) is angled at 80 ° to the housing body duct.
CN202120653892.0U 2021-03-31 2021-03-31 Rotational flow high pressure difference filter Active CN214552051U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120653892.0U CN214552051U (en) 2021-03-31 2021-03-31 Rotational flow high pressure difference filter

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Application Number Priority Date Filing Date Title
CN202120653892.0U CN214552051U (en) 2021-03-31 2021-03-31 Rotational flow high pressure difference filter

Publications (1)

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CN214552051U true CN214552051U (en) 2021-11-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112915678A (en) * 2021-03-31 2021-06-08 西安热工研究院有限公司 Rotational flow high pressure difference filter and manufacturing method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112915678A (en) * 2021-03-31 2021-06-08 西安热工研究院有限公司 Rotational flow high pressure difference filter and manufacturing method thereof
CN112915678B (en) * 2021-03-31 2024-04-16 西安热工研究院有限公司 Rotational flow high pressure difference filter and manufacturing method thereof

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