CN217526580U - Filter screen assembly - Google Patents
Filter screen assembly Download PDFInfo
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- CN217526580U CN217526580U CN202220996838.0U CN202220996838U CN217526580U CN 217526580 U CN217526580 U CN 217526580U CN 202220996838 U CN202220996838 U CN 202220996838U CN 217526580 U CN217526580 U CN 217526580U
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- bottom plate
- screen assembly
- filter
- plate
- filter screen
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Abstract
The utility model discloses a filter screen component, which comprises a bottom plate, a plurality of limiting parts and a plurality of filter plates, wherein each limiting part is arranged at the upper end of the bottom plate and distributed along the periphery of the bottom plate, at least two limiting parts are distributed corresponding to each side edge of the bottom plate, and a plurality of installation stations are arranged between two adjacent limiting parts; each filter plate all sets up along upper and lower extension, each filter plate can follow along upper and lower grafting on arbitrary the installation station between two adjacent locating parts, a plurality of filter plates cooperate the bottom plate in order to enclose and form the accommodation space that the upper end opening set up, the accommodation space is used for holding circulating water pump suction pipe. The utility model discloses aim at solving the difficult online cleaning's of current power plant circulating water system's rotation type filter screen problem.
Description
Technical Field
The utility model relates to a filtration equipment technical field, concretely relates to filter screen subassembly.
Background
At present, a rotary primary filter screen is mostly adopted in a circulating water system of a power plant, the primary filter screen of the type utilizes the rotation of the primary filter screen when running on line, a scraper plate is used for cleaning, and a primary filter screen filter cylinder needs to be integrally lifted and cleaned during shutdown. The rotary scraper blade basically cannot play a role in cleaning when in on-line cleaning, and small shells and other impurities cannot be scraped by the scraper blade at all because the clearance between the scraper blade and the filter screen is larger and is more than 10 mm. If the clearance is too small, the friction resistance between the scraper and the filter screen is very large, and the moment of the transmission mechanism is insufficient, so that the scraper or the filter screen cannot be driven to rotate. When the filter cylinder is lifted and cleaned during the shutdown period, the maintenance workload is large, the lifting weight is large, the maintenance time is long, and the maintenance workload is large. Because the online scraper cleaning effect is poor, the filter screen is easy to block, and the once blocked filter screen reduces the over-flow of the once blocked filter screen, so that the output of the circulating water pump is reduced, and the power generation efficiency of the steam turbine unit is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a filter screen subassembly aims at solving the difficult online cleaning's of current power plant circulating water system's rotation type filter screen problem.
To achieve the above object, the present invention provides a subject one, including:
a base plate;
the limiting pieces are arranged at the upper end of the bottom plate and distributed along the periphery of the bottom plate, at least two limiting pieces are distributed corresponding to each side edge of the bottom plate, and a plurality of installation stations are arranged between every two adjacent limiting pieces; and the number of the first and second groups,
the filter plates can be inserted into any installation station between two adjacent limiting parts in the vertical direction, the filter plates are matched with the bottom plate to form an accommodating space with an opening at the upper end, and the accommodating space is used for accommodating a circulating water pump suction inlet pipe.
Optionally, each of the position-limiting members includes a pillar extending in the up-down direction;
a plurality of clamping grooves are concavely arranged on one side wall, opposite to each other, of each two adjacent pillars, the clamping grooves extend in the vertical direction, and the two clamping grooves are oppositely arranged to form one installation station.
Optionally, the number of the clamping grooves concavely arranged on the opposite side walls of two adjacent pillars is two.
Optionally, the filter screen assembly further comprises a frame, the frame is mounted at the upper end of the bottom plate, the pillars are located inside the frame, and the frame is used for protecting the filter plates.
Optionally, each of the struts is fixed to the frame.
Optionally, one side of each filter plate is provided with two support legs at intervals along the width direction of the filter plate.
Optionally, two lifting lugs are mounted at an interval at the upper end of each filter plate.
Optionally, an opening is formed in the bottom plate in a penetrating mode, and a filter screen is installed at the position of the opening on the bottom plate.
Optionally, a plurality of support tables are mounted at the bottom end of the bottom plate.
Optionally, the bottom plate is arranged in a rectangular shape, and three limit pieces are distributed on each side edge of the bottom plate;
optionally, the bottom plate is arranged in a rectangular shape, and three limit pieces are distributed on each side edge of the bottom plate;
correspondingly, the number of the filter plates is eight.
The technical scheme of the utility model in, through the upper end of bottom plate is encircleed and is installed a plurality ofly the filter plate, it is a plurality of the filter plate encircles all sides at the circulating water pump suction inlet pipe, the bottom plate sets up the bottom at the circulating water pump suction inlet pipe, wherein, the lower tip of filter screen subassembly is immersed under the surface of water, and is a plurality of promptly the lower tip of filter plate is immersed under the surface of water to the water of inhaling to the circulating water pump suction inlet pipe and is filtered, and an adjacent two locating part is for example, because adjacent two that set up exist between the locating part a plurality of installation station, will promptly the filter plate inserts arbitrary installation station, can be to this two region between the locating part filters, and right when the filter plate is changed, optional one is reserve the filter plate inserts another on the installation station to it needs to change abluent through hoisting equipment the filter plate, after the clearance the filter plate can also be as standby plate, to other the filter plate can insert this after clearing up in advance the filter plate, through hoisting in the filter screen subassembly the realization that the monolithic subassembly washs the weight reaches monolithic subassembly and the preferred, thereby the filter plate is fast overhauld the efficiency, thereby the preferred.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic top view of a filter screen assembly according to an embodiment of the present invention;
fig. 2 is a schematic front view of a filter screen assembly according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
fig. 4 is a front view of the base plate in fig. 1.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | Base plate | 6 | |
| 2 | |
7 | |
| 2a | (Pillar) | 8 | Opening(s) |
| 3 | |
9 | Filter screen |
| 4 | Clamping |
10 | Supporting table |
| 5 | Frame structure |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front, and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indication is changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
At present, a rotary primary filter screen is mostly adopted in a circulating water system of a power plant, the primary filter screen of the type utilizes the rotation of the primary filter screen when running on line, a scraper plate is used for cleaning, and a primary filter screen filter cylinder needs to be integrally lifted and cleaned during shutdown. The rotary scraper blade basically cannot play a role in cleaning when in on-line cleaning, and small shells and other impurities cannot be scraped by the scraper blade at all because the clearance between the scraper blade and the filter screen is larger and is more than 10 mm. If the clearance is adjusted to be too small, the frictional resistance between the scraper and the filter screen is very large, and the torque of the transmission mechanism is insufficient, so that the scraper or the filter screen cannot be driven to rotate. When the filter cylinder is lifted and cleaned during the shutdown period, the maintenance workload is large, the lifting weight is large, the maintenance time is long, and the maintenance workload is large. Because the online scraper cleaning effect is poor, the filter screen is easy to block, and the once blocked filter screen reduces the over-flow of the once blocked filter screen, so that the output of the circulating water pump is reduced, and the power generation efficiency of the steam turbine unit is seriously influenced.
In view of this, the present invention provides a filter plate assembly, and fig. 1 to 4 illustrate an embodiment of the present invention.
Referring to fig. 1 to 3, the filter screen assembly includes a bottom plate 1, a plurality of limiting members 2 and a plurality of filter plates 3, each limiting member 2 is installed at the upper end of the bottom plate 1 and distributed along the circumference of the bottom plate 1, at least two limiting members 2 are distributed corresponding to each side edge of the bottom plate 1, and a plurality of installation stations are arranged between two adjacent limiting members 2; each filter plate 3 all sets up along extending from top to bottom, each filter plate 3 can be along following the arbitrary installation station of vertical grafting between two adjacent locating part 2, a plurality of filter plates 3 cooperate bottom plate 1 in order to enclose the accommodation space that forms upper end opening 8 and set up, the accommodation space is used for holding circulating water pump suction pipe.
The technical scheme of the utility model in, through it is a plurality of to encircle to install bottom plate 1's upper end filter plate 3, it is a plurality of filter plate 3 encircles all sides at the circulating water pump suction inlet pipe, bottom plate 1 sets up the bottom at circulating water pump suction inlet pipe, wherein, filter screen assembly's lower tip is immersed under the surface of water, and is a plurality of filter plate 3's lower tip is immersed under the surface of water to the water of inhaling to the circulating water pump suction inlet pipe filters, and adjacent two locating part 2 is for example, because adjacent two that set up exist between the locating part 2 install the station, be about to filter plate 3 inserts arbitrary install the station, can be these two region between the locating part 2 filters, and right when filter plate 3 changes, optional one is reserve filter plate 3 inserts another install on the station to hang through lifting device and need to change abluent filter plate 3, after the clearance filter plate 3 can also be as standby plate, to other filter plate 3 carries out abluent the time, can insert this clearance back in advance filter plate 3, through the filter plate 3 that the filter screen component that the change washs the monolithic component and the efficiency is fast to the preferred filter plate 3, thereby the filter plate 3 is quick maintenance volume of the maintenance is fast.
It should be noted that the through-flow rate of the existing rotary filter screen is greater than 5, and the flow rate of the filter plate 3 which is selected and arranged to be inserted into the limiting member 2 is greater than 15.9, which is more than three times of the through-flow rate of the traditional rotary filter screen, so that the filter plate can have a better flow effect, and the material is rigid, specifically in this embodiment, the filter plate can be made of stainless steel, and the thickness of the filter plate is about 8mm, so that sufficient rigidity is provided while corrosion is prevented, and the filter plate is prevented from being deformed and influenced by insertion and insertion between the limiting members 2.
Further, each of the limiting members 2 includes a pillar 2a extending in the up-down direction; a plurality of clamping grooves 4 are concavely arranged on the opposite side walls of the two adjacent pillars 2a, the clamping grooves 4 extend along the vertical direction, and the two opposite clamping grooves 4 form an installation station.
The pillars 2a are arranged, the pillars 2a are arranged at the upper end of the bottom plate 1, so that the effect of strength support is achieved, a plurality of clamping grooves 4 are concavely arranged on two adjacent pillars 2a, a group of clamping grooves 4 which are oppositely arranged is taken as an installation station, the filter plate 3 can be inserted into the clamping grooves 4 from the upper ends of the two clamping grooves 4 which are oppositely arranged, and the side of the filter plate 3 is limited by the two clamping grooves 4, so that the filter plate 3 is fixedly inserted; wherein, the total clearance between the filter plate 3 and the clamping groove 4 is controlled between 2 mm and 4 mm.
Still further, the number of the clamping grooves 4 concavely arranged on the opposite side walls of the two adjacent pillars 2a is two. Be adjacent two be provided with two between the pillar 2a installation station, in the in-service use process, one the filter plate 3 inserts to arbitrary in the installation station, and right when the filter plate 3 washs the change, will be reserve the filter plate 3 inserts to another in the installation station to it needs abluent filter plate 3 to lift washs the change, thereby it is right in order to realize the online change of filter plate 3.
Referring to fig. 1 to 2, the filter screen assembly further includes a frame 5, the frame 5 is mounted on the upper end of the bottom plate 1, the plurality of pillars 2a are located inside the frame 5, and the frame 5 is used for protecting the plurality of filter plates 3. Through being provided with the frame 5 cover is established a plurality ofly week side of pillar 2a, and install a plurality ofly between pillar 2a week side part of filter plate 3 can be protected, and further play the firm effect of installation.
Further, each of the pillars 2a is fixed to the frame 5. By fixedly connecting the pillars 2a and the frame 5, the supporting effect of the pillars 2a on the filter plate 3 can be further enhanced; the fixing form between each of the pillars 2a and the frame 5 is not limited, and may be direct fixing, or may be mounting and fixing through other components, specifically, in this embodiment, each of the pillars 2a and the frame 5 is fixed through at least one mounting block.
Further, two of the support legs 6 are mounted on one side of each of the filter plates 3 at intervals in the width direction thereof. Through being provided with the stabilizer blade 6 to can guarantee when the filter plate 3 is deposited the filter plate 3 is vertical to be put, and the filter plate 3 is installed when the installation station is gone up, can be right the filter plate 3 further supports the restriction.
Referring to fig. 2, two lifting lugs 7 are mounted at an interval at the upper end of each filter plate 3. Two lifting lugs 7 are installed at the upper end of each filter plate 3 at intervals, so that the filter plates 3 can be conveniently lifted by lifting equipment.
Referring to fig. 4, an opening 8 is formed through the bottom plate 1, and a filter screen 9 is installed at the opening 8 of the bottom plate 1. Through install on bottom plate 1 filter screen 9 to improve circulating water pump's inflow.
Referring to fig. 2, a plurality of supporting platforms 10 are installed at the bottom end of the base plate 1. Through a plurality of the bottom of bottom plate 1 is installed a plurality of brace table 10, then place under ground or the surface of water when bottom plate 1, can be right bottom plate 1 makes somebody a mere figurehead, thereby with bottom plate 1 with wait to contact the plane part not direct contact, in order to right filter screen 9 protects.
Referring to fig. 1 and 4, the bottom plate 1 is rectangular, and three limiting members 2 are distributed on each side edge of the bottom plate 1; correspondingly, the number of the filter plates 3 is eight. Through being the rectangle setting each side edge distribution of bottom plate 1 has three locating part 2, encircles the setting promptly bottom plate 1 sets up a plurality ofly the quantity of locating part 2 is eight, then corresponds to be located 1 each side edge mountable of bottom plate is two filter plate 3 because the circulating water pump inlet tube is the setting of buckling, then corresponds to be located two of one side of bottom plate filter plate 3 can't be changed, but this partial two filter plate 3 also need not hoist the washing during maintenance of general maintenance, can not influence its ability to overflow, does not influence circulating water pump's the volume of absorbing water, thereby it is right when filter plate 3 washs the change, only need select to hoist six that are located three side filter plate 3.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A screen assembly, comprising:
a base plate;
the limiting pieces are arranged at the upper end of the bottom plate and distributed along the periphery of the bottom plate, at least two limiting pieces are distributed corresponding to each side edge of the bottom plate, and a plurality of installation stations are arranged between every two adjacent limiting pieces; and the number of the first and second groups,
the filter plates are arranged in an up-down extending mode and can be inserted into any one of the installation stations between two adjacent limiting parts in an up-down inserting mode, the filter plates are matched with the bottom plate to form an accommodating space with an opening at the upper end, and the accommodating space is used for accommodating a circulating water pump water inlet pipe.
2. The screen assembly of claim 1, wherein each of the retaining members includes a strut extending in an up and down direction;
a plurality of clamping grooves are concavely arranged on one side wall, opposite to each other, of each two adjacent pillars, the clamping grooves extend in the vertical direction, and the two clamping grooves are oppositely arranged to form one installation station.
3. The screen assembly of claim 2, wherein the number of slots recessed in an opposing sidewall of two adjacent struts is two.
4. The screen assembly of claim 2, further comprising a frame mounted to the upper end of the base plate, the plurality of struts each being located inside the frame, the frame being configured to protect the plurality of filter plates.
5. The screen assembly of claim 4, wherein each strut is secured to the frame.
6. The screen assembly of claim 1, wherein each of the filter plates has two legs spaced apart across a width of each of the filter plates.
7. The screen assembly of claim 1, wherein the upper end of each filter plate is spaced apart from two ears.
8. The screen assembly of claim 1, wherein the bottom plate has openings therethrough, the bottom plate having a screen mounted to the bottom plate at the openings.
9. The screen assembly of claim 8, wherein a plurality of support stands are mounted to the bottom end of the bottom plate.
10. The screen assembly of claim 1, wherein the base plate is rectangular in shape, and three retaining members are disposed on each side edge of the base plate;
correspondingly, the number of the filter plates is eight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220996838.0U CN217526580U (en) | 2022-04-24 | 2022-04-24 | Filter screen assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220996838.0U CN217526580U (en) | 2022-04-24 | 2022-04-24 | Filter screen assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217526580U true CN217526580U (en) | 2022-10-04 |
Family
ID=83432536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220996838.0U Active CN217526580U (en) | 2022-04-24 | 2022-04-24 | Filter screen assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217526580U (en) |
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2022
- 2022-04-24 CN CN202220996838.0U patent/CN217526580U/en active Active
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