CN220939601U - Novel nuclear power station water filter and filter cartridge and filter medium thereof - Google Patents
Novel nuclear power station water filter and filter cartridge and filter medium thereof Download PDFInfo
- Publication number
- CN220939601U CN220939601U CN202322612401.XU CN202322612401U CN220939601U CN 220939601 U CN220939601 U CN 220939601U CN 202322612401 U CN202322612401 U CN 202322612401U CN 220939601 U CN220939601 U CN 220939601U
- Authority
- CN
- China
- Prior art keywords
- layer
- filter
- nuclear power
- working
- novel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 102
- 239000010410 layer Substances 0.000 claims abstract description 164
- 239000000463 material Substances 0.000 claims abstract description 61
- 239000011241 protective layer Substances 0.000 claims abstract description 31
- 239000002184 metal Substances 0.000 claims abstract description 23
- 230000004927 fusion Effects 0.000 claims abstract description 18
- 239000002356 single layer Substances 0.000 claims abstract description 14
- 238000005245 sintering Methods 0.000 claims abstract description 14
- 239000011148 porous material Substances 0.000 claims description 24
- 229910001220 stainless steel Inorganic materials 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 11
- 239000010935 stainless steel Substances 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 5
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract description 22
- 239000012530 fluid Substances 0.000 abstract description 7
- 230000006872 improvement Effects 0.000 abstract description 5
- 241001391944 Commicarpus scandens Species 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000012916 structural analysis Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Filtering Materials (AREA)
Abstract
A novel filter material for a filter cartridge of a water filter of a nuclear power station belongs to the technical field related to water filtering equipment of the nuclear power station, and comprises an outer structural layer, a middle working layer and an inner protective layer; the structure layer, the working layer and the protection layer are all of metal layer structures, the structure layer and the working layer are connected through sintering fusion, and the protection layer and the working layer are connected through sintering fusion. The utility model also provides a novel filter cylinder for the nuclear power station water filter and a novel nuclear power station water filter. The utility model adopts a three-layer fusion connection structure, and can fuse the structural layer, the working layer and the protective layer together to form an integrated structure. The filter material provided by the utility model has the excellent performances of stable hole pattern, high structural strength, strong toughness, strong fluid impact resistance, difficult breakage and the like, solves the problem that a single-layer filter screen of a traditional filter cylinder is easy to break, and can greatly prolong the service cycle of the metal wire mesh filter cylinder after structural improvement and reduce the post-treatment cost of products.
Description
Technical Field
The utility model relates to the technical field related to nuclear power plant water filtering equipment, in particular to a novel filter cartridge filter material for a nuclear power plant water filter, a novel filter cartridge for the nuclear power plant water filter and a novel nuclear power plant water filter.
Background
The water filter of the auxiliary system of the nuclear island (namely the nuclear power plant) is an important consumption spare part for the operation of the nuclear power plant, is applied to a loop auxiliary system (RCV, PTR, REA, REN and the like), an evaporator pollution discharge system (APG) and a three-waste system (TEU, TEP, TES) of the nuclear power plant, is mainly used for filtering particle impurities in the system, and can be used as a trapping filter screen of loop radioactive hot particles to remove a loop of high-radioactivity substances.
Referring to fig. 1, fig. 1 is a schematic diagram of a typical filter medium on a wire mesh filter cartridge in the prior art.
For the filtering occasion with the filtering precision of more than 45 mu m, a wire mesh filter is generally selected as the water filter, a basket type wire mesh filter cylinder is arranged in the filter, in the wire mesh filter cylinder structure, a single-layer wire mesh a is adopted as a main part of a filter material, an outer orifice plate b is used as a support, an inner thickened wire mesh c is used for protection, no fixed connection exists between the inner wire mesh and the outer wire mesh and the orifice plate, the deformation of the orifice mesh is easy to occur to the main part wire mesh part through long-term fluid impact, and the filtering precision and the filtering efficiency cannot be ensured, so that the long-period operation of a nuclear island is influenced.
Disclosure of utility model
(One) technical problem:
According to structural analysis of the water filter of the existing nuclear power station, the currently used wire mesh filter cylinder is simple in material selection structure, the main filter material is a single-layer wire mesh, the single-layer wire mesh is unstable in hole type, low in strength, poor in toughness, poor in fluid impact resistance, deformed through fluid impact Kong Wangyi and easy to damage.
In summary, how to solve the problem of low structural strength of the conventional water filter for nuclear power station using a single-layer wire mesh as a filter medium is a problem to be solved by those skilled in the art.
(II) technical scheme:
in order to achieve the above object, the present utility model provides the following technical solutions:
The utility model provides a novel filter cartridge filter material for a nuclear power station water filter, which is simply called as a filter material, wherein the filter material is of a multilayer structure;
The filter material comprises an outer structural layer, a middle working layer and an inner protective layer;
The structure layer, the working layer and the protection layer are all of metal layer structures, the structure layer is in sintering fusion connection with the working layer, and the protection layer is in sintering fusion connection with the working layer;
the structure layer is provided with a structure hole, the working layer is provided with a working hole, the protection layer is provided with a protection hole, and the pore diameters of the structure hole and the protection hole are larger than the pore diameter of the working hole;
the working layer is a stainless steel wire mesh woven by stainless steel wires with the diameter of 0.03mm to 0.15mm, and the thickness range of the working layer is 0.06mm to 0.5mm;
The working holes have a pore diameter ranging from 40 μm to 250 μm.
Preferably, in the filter medium for the novel nuclear power station water filter provided by the utility model, the working layer comprises warps and wefts, wherein the warps are arranged in parallel at equal intervals in the same plane, the plane in which the warps are arranged is a reference plane, the wefts are arranged in parallel at equal intervals in another plane parallel to the reference plane, an included angle is formed between the warps and the wefts, and the included angle is more than 0 degree and not less than 90 degrees; the warp and the weft are connected in a fusion manner and form a stainless steel wire net, the warp and the weft are staggered to form the working holes, and the working holes are of a hole structure with a regular shape.
Preferably, in the novel filter cartridge filter material for the nuclear power station water filter provided by the utility model, the working holes are rectangular holes or diamond holes; the working holes are uniformly distributed on the working layer.
Preferably, in the novel filter cartridge filter material for the nuclear power station water filter provided by the utility model, the protective layer is a metal net, and meshes of the metal net are the protective holes; the protective layer is of a single-layer structure, and the thickness of the protective layer is not smaller than that of the working layer.
Preferably, in the novel filter cartridge filter material for the nuclear power station water filter provided by the utility model, the structural layer is a metal plate, and the structural holes are punched in the structural layer; the pore diameter range of the structural pores is 3mm-5mm.
Preferably, in the novel filter cartridge filter material for the nuclear power station water filter provided by the utility model, the protective layer is a stainless steel wire mesh; the structural layer is a stainless steel plate.
The utility model also provides a novel filter cartridge for the nuclear power plant water filter, which is called as a filter cartridge for short, wherein the filter cartridge comprises a handle, a connector and the novel filter cartridge filter material for the nuclear power plant water filter;
The novel filter cartridge filter material for the nuclear power station water filter is made into a filter screen barrel with a cylindrical structure;
The connector is of an annular structure, the lifting handle is arranged on the upper side face of the connector, and the filter screen cylinder is arranged on the lower side face of the connector.
Preferably, in the novel filter cartridge for the nuclear power station water filter provided by the utility model, an annular groove is formed in the lower side surface of the connector, and a sealing ring is arranged in the groove.
Preferably, in the novel filter cartridge for the nuclear power station water filter provided by the utility model, the filter screen cylinder is vertically arranged on the connector; the circle center of the connector is positioned on the axis of the filter screen cylinder.
The utility model also provides a novel nuclear power station water filter, which comprises a filter main body, wherein the filter main body is provided with a cylinder body, a support ring is arranged in the cylinder body, and an upper cover is further arranged on the cylinder body. The utility model also provides a novel filter cylinder for the nuclear power station water filter; the novel nuclear power station water filter cartridge is arranged in the cylinder, a gap is reserved between the outer side face of the novel nuclear power station water filter cartridge and the inner side face of the cylinder, the novel nuclear power station water filter cartridge comprises a connector, the lower side face of the connector is in sealing connection with the upper side face of the supporting ring, and the inner side face of the upper cover can be propped against the connector of the novel nuclear power station water filter cartridge and used for fixing the novel nuclear power station water filter cartridge in the cylinder.
(III) beneficial effects:
From the above, the present utility model provides a novel filter cartridge filter material for a water filter of a nuclear power plant, wherein the filter material has a multi-layer structure; the filter material comprises an outer structural layer, a middle working layer and an inner protective layer; the structure layer, the working layer and the protection layer are all of metal layer structures, the structure layer and the working layer are connected in a sintering fusion manner, and the protection layer and the working layer are connected in a sintering fusion manner; the structure layer is provided with a structure hole, the working layer is provided with a working hole, the protection layer is provided with a protection hole, and the pore diameters of the structure hole and the protection hole are larger than the pore diameter of the working hole; the working layer is a stainless steel wire mesh woven by stainless steel wires with the diameter of 0.03mm to 0.15mm, and the thickness range of the working layer is 0.06mm to 0.5mm; the pore size of the working pores ranges from 40 μm to 250 μm. Based on the filter material, the utility model also provides a novel filter cartridge for the water filter of the nuclear power station, which comprises a handle, a connector and the novel filter material for the water filter of the nuclear power station; a filter screen drum with a cylindrical structure is manufactured by a filter drum filter material for a novel nuclear power station water filter; the connector is annular structure, is provided with the handle in the upside of connector, is provided with the filter screen section of thick bamboo in the downside of connector. In addition, the utility model also provides a novel nuclear power station water filter, which comprises a filter main body, wherein the filter main body is provided with a cylinder body, a support ring is arranged in the cylinder body, and an upper cover is further arranged on the cylinder body. Specifically, the utility model also comprises the novel filter cylinder for the nuclear power station water filter; the novel nuclear power station water filter cartridge is arranged in the cylinder, a gap is reserved between the outer side face of the novel nuclear power station water filter cartridge and the inner side face of the cylinder, the novel nuclear power station water filter cartridge comprises a connector, the lower side face of the connector is in sealing connection with the upper side face of the support ring, and the inner side face of the upper cover can be propped against the connector of the novel nuclear power station water filter cartridge and used for fixing the novel nuclear power station water filter cartridge in the cylinder.
Through the structural design, the novel filter cartridge filter material for the nuclear power station water filter comprises three layers, namely a structural layer, a working layer and a protective layer, wherein the structural layer is of a main structure and is used for keeping the filter material stable in structure, working holes are formed in the working layer and used for realizing water filtration, and the protective layer is used for realizing the protection of the working layer and reducing the scouring of water flow to the working layer. The utility model particularly adopts a three-layer fusion connection structure, and the structural layer, the working layer and the protective layer can be fused together to form an integrated structure. The filter material provided by the utility model has the excellent performances of stable hole pattern, high structural strength, strong toughness, strong fluid impact resistance, difficult breakage and the like, solves the problem that a single-layer filter screen of a traditional filter cylinder is easy to break, and can greatly prolong the service cycle of the metal wire mesh filter cylinder after structural improvement and reduce the post-treatment cost of products.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. Wherein:
Fig. 1 is a schematic view of a typical wire mesh filter cartridge filter medium according to the prior art.
In fig. 1, the correspondence between the component names and the reference numerals is:
Single-layer wire mesh a, orifice plate b, thickened wire mesh c.
FIG. 2 is a schematic partial diagram of a filter medium of a filter cartridge for a water filter of a novel nuclear power plant in accordance with an embodiment of the present utility model;
FIG. 3 is a schematic view of a cartridge for a water filter of a novel nuclear power plant in accordance with an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of a novel nuclear power plant water filter according to an embodiment of the present utility model.
In fig. 2 to 4, the correspondence between the component names and the reference numerals is:
A structural layer 1, a working layer 2, a protective layer 3, a handle 4, a connector 5, a filter screen cylinder 6,
A filter body 7.
Detailed Description
The utility model will be described in detail below with reference to the drawings in connection with embodiments. The examples are provided by way of explanation of the utility model and not limitation of the utility model. Indeed, it will be apparent to those skilled in the art that modifications and variations can be made in the present utility model without departing from the scope or spirit of the utility model. For example, features illustrated or described as part of one embodiment can be used on another embodiment to yield still a further embodiment. Accordingly, it is intended that the present utility model encompass such modifications and variations as fall within the scope of the appended claims and their equivalents.
In the description of the present utility model, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. refer to the orientation or positional relationship based on that shown in the drawings, merely for convenience of description of the present utility model and do not require that the present utility model must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The terms "coupled" and "connected" as used herein are to be construed broadly and may be, for example, fixedly coupled or detachably coupled; either directly or indirectly through intermediate components, the specific meaning of the terms being understood by those of ordinary skill in the art as the case may be.
Referring to fig. 2 to 4, fig. 2 is a schematic diagram showing a partial structure of a filter medium for a filter cartridge of a novel nuclear power plant water filter according to an embodiment of the present utility model; FIG. 3 is a schematic view of a cartridge for a water filter of a novel nuclear power plant in accordance with an embodiment of the present utility model; fig. 4 is a schematic structural diagram of a novel nuclear power plant water filter according to an embodiment of the present utility model.
The utility model provides a novel filter cartridge filter material for a nuclear power station water filter, which has a multi-layer structure, namely, the filter material is formed by overlapping and fusing a plurality of layers of structures with different functions, so that an integrated filter material with a filtering function is realized.
The utility model relates to an improvement and new conception of a filter material on a filter cylinder, which comprises the following steps: the three-layer integral sintering structure is selected, namely the pore plate, the filter screen and the protection screen are sintered into an integral structure, so that the strength, the toughness and the mesh stability of the filter material are enhanced, and the service cycle of the filter cylinder is effectively prolonged.
In the utility model, the filter material can be divided into three layers, and in a use state (i.e. the filter material is rolled into a cylindrical structure), the filter material comprises an outer layer, a middle layer and an inner layer, wherein the outer layer is a structural layer 1, the middle layer is a working layer 2 and the inner layer is a protective layer 3. The structural layer 1 can be understood as a structural main body of the filter material, is used for guaranteeing the structural strength of the filter material and the stability of the structure under the working state, the working layer 2 is used for realizing water filtration, the protection layer 3 is used for protecting the working layer 2, and can also provide uniform external expansion acting force for the working layer 2 on the premise of reducing the flushing strength of water flow to the working layer 2, so that the working layer 2 is supported on the structural layer 1 to keep the stability of the whole filter material structure.
The structural layer 1, the working layer 2 and the protective layer 3 are all metal layer structures, and the metal layer structures specifically refer to that the structural layer 1, the working layer 2 and the protective layer 3 are all made of metal materials and are all in a layered structure.
The filter material provided by the utility model has the greatest difference from the traditional filter material in that: the structure layer 1 and the working layer 2 are in sintering fusion connection, and the protection layer 3 and the working layer 2 are in sintering fusion connection.
In the utility model, the main filtering material on the filtering cylinder (namely the filtering material for the novel nuclear power station water filter) adopts a sintered wire mesh structure, and compared with the traditional single-layer wire mesh filtering cylinder, the sintered wire mesh filtering cylinder has the advantages that the strength and toughness of the filtering material are greatly improved, so that the service life of the filtering cylinder can be prolonged.
The filter material provided by the utility model is used for filtering tiny particulate impurities in water, wherein the working layer 2 realizes a filtering function, working holes are formed in the working layer 2, the working layer 2 is clamped between the structural layer 1 and the protective layer 3, and in order to ensure smooth water flow, hole structures are also formed in the structural layer 1 and the protective layer 3, and specifically: the structural layer 1 is provided with a structural hole, the working layer 2 is provided with a working hole, the protective layer 3 is provided with a protective hole, and the diameters of the structural hole and the protective hole are both larger than that of the working hole.
For the working layer 2, the working layer 2 is a stainless steel wire mesh woven from stainless steel wires having a diameter of between 0.03mm and 0.15mm, the working layer 2 has a thickness ranging from 0.06mm to 0.5mm, and the working holes have a diameter ranging from 40 μm to 250 μm.
Specifically, the working layer 2 includes warp and weft, and warp and weft's diameter are the same, and under ideal state, warp is sharp, and weft is sharp, and warp is equidistant parallel arrangement in same plane, for the convenience of structure description, prescribes a limit to once more: the plane in which the warp is positioned is a reference plane, the weft is arranged in parallel at equal intervals in the other plane parallel to the reference plane, the warp and the weft are contacted with each other in an arranged state (for example, the warp is arranged on the lower layer, the weft is directly paved on the warp), an included angle is formed between the warp and the weft, the included angle is more than 0 DEG and not less than 90 DEG, and in the preferred embodiment of the utility model, the included angle between the warp and the weft is preferably 45 DEG (the formed working hole is a diamond hole) or preferably 90 DEG (the formed working hole is a rectangular hole, namely a rectangular hole or a square hole).
Of course, the working layer 2 may take other forms, for example, a microporous structure is provided on the sheet as the working hole, and in this embodiment, the working hole may be a circular hole structure, an elliptical hole structure, or a triangular hole structure, and a regular polygonal hole structure (at least a regular hexagonal hole, and preferably a regular hexagonal hole).
Specifically, warp and weft fuse and connect and form stainless steel wire net, form the working hole by warp and weft are crisscross, and the working hole is regular shape's pore structure.
In the utility model, the protective layer 3 is a metal net, meshes of the metal net are protective holes, the protective layer 3 is of a single-layer structure, and the thickness of the protective layer 3 is not less than that of the working layer 2.
In the utility model, the structural layer 1 is a metal plate, and structural holes are punched on the structural layer 1, wherein the aperture range of the structural holes is 3mm-5mm.
In the utility model, the structural holes arranged on the structural layer 1 are of a round hole structure, wherein the round holes form a structural hole group by using a group of three round holes, the circle centers of the three round holes in the same group are at the three vertexes of an equilateral triangle, and gaps are arranged among the three working holes in the same group, and the gaps are between 0.3 and 0.5 times of the radius of the working holes. The structural hole groups are uniformly arranged on the structural layer 1. The arrangement of the structural holes should follow the following principle: on the premise of ensuring the structural strength of the structural layer 1, the pore diameter of the structural holes should be as large as possible, the arrangement density of the structural holes should be as large as possible, and the distribution of the structural holes should be as uniform as possible.
Specifically, the protective layer 3 is a stainless steel wire mesh; the structural layer 1 is a stainless steel plate.
In the utility model, the filter cartridge takes three layers of sintered wire mesh as a main filtering material, the wire mesh and the pore plate are sintered into a whole, and the preparation of the sintered wire mesh filter cartridge comprises three main technological processes of mesh distribution selection, sintering shaping and filter cartridge processing. The metal wire mesh and the pore plate are reasonably matched and sintered at high temperature, so that fusion connection is realized among the metal wire mesh layers, and the metal wire mesh and the pore plate.
The utility model also provides a novel filter cartridge for the nuclear power plant water filter, which comprises a handle 4, a connector 5 and the novel filter cartridge filter material for the nuclear power plant water filter. Wherein, a filter cartridge 6 with a cylindrical structure is made of a filter cartridge filter material for a novel nuclear power station water filter; the connector 5 is annular structure, is provided with handle 4 in the upside of connector 5, is provided with filter screen section of thick bamboo 6 in the downside of connector 5.
In the utility model, the connector 5 of the filter cartridge is of a circular ring structure with a fixed thickness, the upper side surface and the lower side surface of the connector 5 are both plane, the upper side surface of the connector 5 is provided with the handle 4, the filter cartridge is convenient to mount and dismount on a filter, and the lower side surface of the connector 5 is provided with the filter material provided by the utility model, so that the filtering function of the filter cartridge is realized.
Further, an annular groove is formed in the lower side face of the connector 5, and a sealing ring is arranged in the groove and used for improving the tightness of the connector 5 after the filter is installed on the filter.
Specifically, the filter screen cylinder 6 is vertically arranged on the connector 5; the center of the connecting head 5 is positioned on the axis of the filter screen cylinder 6.
Aiming at the problems of low service life and easy breakage of the prior nuclear island wire mesh filter cylinder, the utility model designs and selects the multi-layer sintered wire mesh filter cylinder with stable structure and high strength to replace the single-layer wire mesh filter cylinder, thereby excellently solving the problem of filter cylinder breakage in the actual application process of the nuclear island.
The utility model also provides a novel nuclear power station water filter, which comprises a filter main body 7, wherein a cylinder body is arranged on the filter main body 7, a support ring is arranged in the cylinder body, and an upper cover is further arranged on the cylinder body. The novel nuclear power plant water filter is also provided with the novel nuclear power plant water filter cartridge; the novel nuclear power station water filter cartridge is arranged in the cylinder, a gap is reserved between the outer side face of the novel nuclear power station water filter cartridge and the inner side face of the cylinder, the novel nuclear power station water filter cartridge comprises a connector 5, the lower side face of the connector 5 is in sealing connection with the upper side face of the support ring, and the inner side face of the upper cover can be propped against the connector 5 of the novel nuclear power station water filter cartridge and used for fixing the novel nuclear power station water filter cartridge in the cylinder.
In the utility model, the filter cylinder consists of three parts, namely a handle 4, a connector 5 and a main silk screen cylinder (a cylindrical structure made of the filter material provided by the utility model), wherein a groove is arranged on the bottom surface of the connector 5 and is used for installing a sealing ring. The filter provided by the utility model comprises a cylinder body, wherein the inner wall of the cylinder body is provided with a supporting ring, when the filter cylinder is placed in the filter, the connector 5 is placed on the supporting ring, the upper cover of the filter is covered, and the inner wall of the upper cover is tightly pressed on the handle 4, and the pressing force is transmitted to the sealing ring, so that the sealing ring is effective, and the tight fit between the filter cylinder and the filter is realized.
The water filter for the nuclear power station adopts the structural design of the basket type filter cylinder, so that the filter cylinder is convenient to install and detach, and the seal between the filter cylinder and the filter can be rapidly realized through the compression of the lifting ring. For a common single-layer wire mesh filter cartridge used in the prior art, the multi-layer sintered wire mesh filter cartridge provided by the utility model has the excellent performances of stable hole pattern, high structural strength, strong toughness, strong fluid impact resistance, difficult breakage and the like. The utility model aims to solve the problem that a filter screen of a filter cartridge is easy to damage in the practical application process of a nuclear island, and greatly prolongs the service cycle of the filter cartridge of the metal wire mesh after the structure is improved, thereby reducing the post-treatment cost of products.
From the above, the present utility model provides a novel filter cartridge filter material for a water filter of a nuclear power plant, wherein the filter material has a multi-layer structure; the filter material comprises an outer structural layer, a middle working layer and an inner protective layer; the structure layer, the working layer and the protection layer are all of metal layer structures, the structure layer and the working layer are connected in a sintering fusion manner, and the protection layer and the working layer are connected in a sintering fusion manner; the structure layer is provided with a structure hole, the working layer is provided with a working hole, the protection layer is provided with a protection hole, and the pore diameters of the structure hole and the protection hole are larger than the pore diameter of the working hole; the working layer is a stainless steel wire mesh woven by stainless steel wires with the diameter of 0.03mm to 0.15mm, and the thickness range of the working layer is 0.06mm to 0.5mm; the pore size of the working pores ranges from 40 μm to 250 μm. Based on the filter material, the utility model also provides a novel filter cartridge for the water filter of the nuclear power station, which comprises a handle, a connector and the novel filter material for the water filter of the nuclear power station; a filter screen drum with a cylindrical structure is manufactured by a filter drum filter material for a novel nuclear power station water filter; the connector is annular structure, is provided with the handle in the upside of connector, is provided with the filter screen section of thick bamboo in the downside of connector. In addition, the utility model also provides a novel nuclear power station water filter, which comprises a filter main body, wherein the filter main body is provided with a cylinder body, a support ring is arranged in the cylinder body, and an upper cover is further arranged on the cylinder body. Specifically, the utility model also comprises the novel filter cylinder for the nuclear power station water filter; the novel nuclear power station water filter cartridge is arranged in the cylinder, a gap is reserved between the outer side face of the novel nuclear power station water filter cartridge and the inner side face of the cylinder, the novel nuclear power station water filter cartridge comprises a connector, the lower side face of the connector is in sealing connection with the upper side face of the support ring, and the inner side face of the upper cover can be propped against the connector of the novel nuclear power station water filter cartridge and used for fixing the novel nuclear power station water filter cartridge in the cylinder.
Through the structural design, the novel filter cartridge filter material for the nuclear power station water filter comprises three layers, namely the structural layer 1, the working layer 2 and the protective layer 3, wherein the structural layer 1 is of a main structure and is used for keeping the filter material stable in structure, working holes are formed in the working layer 2 and are used for realizing water filtration, and the protective layer 3 is used for realizing the protection of the working layer 2 and reducing the scouring of water flow to the working layer 2. The utility model particularly adopts a three-layer fusion connection structure, and the structural layer 1, the working layer 2 and the protective layer 3 can be fused together to form an integrated structure. The filter material provided by the utility model has the excellent performances of stable hole pattern, high structural strength, strong toughness, strong fluid impact resistance, difficult breakage and the like, solves the problem that a single-layer filter screen of a traditional filter cylinder is easy to break, and can greatly prolong the service cycle of the metal wire mesh filter cylinder after structural improvement and reduce the post-treatment cost of products.
The above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model, and various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. A novel filter cartridge filter material for a water filter of a nuclear power station is characterized in that,
The filter material is of a multi-layer structure;
The filter material comprises an outer structural layer, a middle working layer and an inner protective layer;
The structure layer, the working layer and the protection layer are all of metal layer structures, the structure layer is in sintering fusion connection with the working layer, and the protection layer is in sintering fusion connection with the working layer;
the structure layer is provided with a structure hole, the working layer is provided with a working hole, the protection layer is provided with a protection hole, and the pore diameters of the structure hole and the protection hole are larger than the pore diameter of the working hole;
the working layer is a stainless steel wire mesh woven by stainless steel wires with the diameter of 0.03mm to 0.15mm, and the thickness range of the working layer is 0.06mm to 0.5mm;
The working holes have a pore diameter ranging from 40 μm to 250 μm.
2. The novel nuclear power plant water filter cartridge filter medium according to claim 1, wherein,
The working layer comprises warp threads and weft threads, wherein the warp threads are arranged in parallel at equal intervals in the same plane, the plane in which the warp threads are arranged is a reference plane, the weft threads are arranged in parallel at equal intervals in another plane parallel to the reference plane, an included angle is formed between the warp threads and the weft threads, and the included angle is more than 0 degree and not less than 90 degrees;
The warp and the weft are connected in a fusion manner and form a stainless steel wire net, the warp and the weft are staggered to form the working holes, and the working holes are of a hole structure with a regular shape.
3. The novel nuclear power plant water filter cartridge filter medium according to claim 2, wherein,
The working holes are rectangular holes or diamond holes;
The working holes are uniformly distributed on the working layer.
4. The novel nuclear power plant water filter cartridge filter medium according to claim 1, wherein,
The protective layer is a metal net, and meshes of the metal net are the protective holes;
The protective layer is of a single-layer structure, and the thickness of the protective layer is not smaller than that of the working layer.
5. The novel nuclear power plant water filter cartridge filter medium of claim 4,
The structure layer is a metal plate, and the structure holes are punched in the structure layer;
The pore diameter range of the structural pores is 3mm-5mm.
6. The novel nuclear power plant water filter cartridge filter medium of claim 5,
The protective layer is a stainless steel wire mesh;
The structural layer is a stainless steel plate.
7. A novel filter cylinder for a water filter of a nuclear power station is characterized in that,
The filter cartridge comprises a handle, a connector and a novel filter cartridge filter material for the nuclear power station water filter as claimed in any one of claims 1 to 6;
The novel filter cartridge filter material for the nuclear power station water filter is made into a filter screen barrel with a cylindrical structure;
The connector is of an annular structure, the lifting handle is arranged on the upper side face of the connector, and the filter screen cylinder is arranged on the lower side face of the connector.
8. The novel nuclear power plant water filter cartridge of claim 7,
An annular groove is formed in the lower side face of the connector, and a sealing ring is arranged in the groove.
9. The novel nuclear power plant water filter cartridge of claim 8,
The filter screen cylinder is vertically arranged on the connecting head;
the circle center of the connector is positioned on the axis of the filter screen cylinder.
10. A novel nuclear power station water filter is characterized in that,
The filter comprises a filter main body, wherein a cylinder body is arranged on the filter main body, a supporting ring is arranged in the cylinder body, and an upper cover is also arranged on the cylinder body;
A novel cartridge for a nuclear power plant water filter according to any one of claims 7 to 9;
the novel nuclear power station water filter cartridge is arranged in the cylinder, a gap is reserved between the outer side face of the novel nuclear power station water filter cartridge and the inner side face of the cylinder, the novel nuclear power station water filter cartridge comprises a connector, the lower side face of the connector is in sealing connection with the upper side face of the supporting ring, and the inner side face of the upper cover can be propped against the connector of the novel nuclear power station water filter cartridge and used for fixing the novel nuclear power station water filter cartridge in the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322612401.XU CN220939601U (en) | 2023-09-25 | 2023-09-25 | Novel nuclear power station water filter and filter cartridge and filter medium thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322612401.XU CN220939601U (en) | 2023-09-25 | 2023-09-25 | Novel nuclear power station water filter and filter cartridge and filter medium thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220939601U true CN220939601U (en) | 2024-05-14 |
Family
ID=91009496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322612401.XU Active CN220939601U (en) | 2023-09-25 | 2023-09-25 | Novel nuclear power station water filter and filter cartridge and filter medium thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220939601U (en) |
-
2023
- 2023-09-25 CN CN202322612401.XU patent/CN220939601U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103247351B (en) | A kind of low pressure drop anti-foreign matter fuel assembly bottom nozzle | |
| CN220939601U (en) | Novel nuclear power station water filter and filter cartridge and filter medium thereof | |
| CN209500944U (en) | A kind of Novel free filter head filter plate | |
| CN215692391U (en) | Multi-layer net sintered filter element | |
| CN212974360U (en) | High efficiency aluminium water filter screen | |
| CN215209845U (en) | Glass fiber net for grinding wheel | |
| CN215232572U (en) | Johnson net type collecting pipe type connecting structure | |
| CN213032093U (en) | Enhancement mode metal filter core | |
| CN2188013Y (en) | Umbrella sector molten liquid filter | |
| CN214914432U (en) | High-temperature-resistant efficient filter | |
| CN220834397U (en) | Sintered metal filter disc | |
| CN207507163U (en) | A kind of explosion-proof dust pelletizing system | |
| CN217367700U (en) | Air filter convenient to renew cartridge more | |
| CN215782248U (en) | Long-life glass fiber filter mesh | |
| CN219440878U (en) | Fracture-preventing powder filter element | |
| CN219462681U (en) | Filter element special for backwashing filter | |
| CN205145813U (en) | Dust remover and metal filter bag thereof | |
| CN212188159U (en) | Environment-friendly sewage gravity-flow sintering filter screen | |
| CN220714992U (en) | Support inner framework for filter element | |
| CN217430991U (en) | Filter core and battery slurry filtering device | |
| CN220530974U (en) | High-pressure filter station filter element with repeatedly replaceable filter layer | |
| CN109331541A (en) | A kind of filtrate that intensity filter is high | |
| CN212440281U (en) | Stainless steel tubular multilayer sintering filter screen precise filtering device capable of backwashing | |
| CN213313644U (en) | Oil filter convenient to clean | |
| CN217961672U (en) | High temperature resistant filter bag |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |