CN209764544U - pretreatment device for water quality analysis - Google Patents
pretreatment device for water quality analysis Download PDFInfo
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- CN209764544U CN209764544U CN201920570637.2U CN201920570637U CN209764544U CN 209764544 U CN209764544 U CN 209764544U CN 201920570637 U CN201920570637 U CN 201920570637U CN 209764544 U CN209764544 U CN 209764544U
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- filter
- filter screen
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- hemispherical
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Abstract
the utility model discloses a pretreatment device for water quality analysis, which comprises a filter chamber, wherein the upper end in the filter chamber is provided with a primary filter device, the primary filter device comprises a filter cartridge, and the filter cartridge comprises a cylindrical filter screen and a sealing cover; a first bearing is arranged on one side of the inner wall of the filter cavity, a second bearing is arranged on the other side of the inner wall of the filter cavity, and the two sealing covers are respectively connected in the two bearings in a sliding manner; one of the sealing covers is fixedly connected with a crank; the upper end of the filter cavity is provided with a water inlet pipe, and the water outlet end of the water inlet pipe passes through the central shaft of the other seal cover and is positioned in the cylindrical filter screen; a second-stage filtering device is arranged below the first-stage filtering device and comprises a hemispherical filter screen with an opening at the upper end, and a sludge discharge pipe is arranged at the bottom end of the hemispherical filter screen; a water distribution disc is arranged on the bottom plate of the filter cavity, a water outlet pipe is arranged at the lower end of the hemispherical filter screen on one side of the filter cavity, and a water diversion pipe is arranged on the water outlet pipe and communicated with the water distribution disc. The utility model discloses filtration efficiency is high, and can prevent the jam of filtration pore, possesses wide application prospect.
Description
Technical Field
the utility model belongs to the technical field of water quality analysis device, concretely relates to a preprocessing device for water quality analysis.
Background
The samples for water quality analysis are generally surface water and polluted water, and these samples generally contain a large amount of solid particles and flocculent suspended matters, which can cause great interference to measurement indexes in water quality analysis, thereby resulting in inaccurate measurement results, and at the same time, can cause blockage or damage to the measuring instrument, so that these solid particles and flocculent suspended matters generally need to be removed before water quality analysis.
In the prior art, a filtering device is generally adopted to intercept the solid particles and flocculent suspended matters, but the structures and functions of the devices are often very simple, only one-stage filtering is carried out by adopting a filter screen with one size or multi-stage filtering is carried out by adopting filter screens with multiple sizes, and because the filter screens are generally fixed in position, the filter screens can quickly block along with the prolonging of the service time, and need to be frequently taken out for manual cleaning, so that the problem is very troublesome, and a new filtering device is needed to be developed to solve the defects.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a preprocessing device for water quality analysis has solved among the prior art solid particle thing and the easy filter screen that blocks up of flocculent suspended solid that exist in a large number in the water sample that awaits measuring, needs often to take out the problem of carrying out artifical clearance.
The utility model provides a pretreatment device for water quality analysis, which comprises a cylindrical filter chamber with an open upper end, wherein a primary filter device is arranged at the upper end in the filter chamber, the primary filter device comprises a filter cartridge which is transversely arranged in the filter chamber, and the filter cartridge comprises a cylindrical filter screen and sealing covers which are detachably arranged at two ends of the cylindrical filter screen; a first bearing is arranged on one side of the inner wall of the filtering cavity, a second bearing is arranged on the opposite side of the inner wall of the filtering cavity, one sealing cover is connected in the first bearing in a sliding mode, and the other sealing cover is connected in the second bearing in a sliding mode; one of the sealing covers is fixedly connected with a crank, and the other end of the crank penetrates through the side wall of the filter cavity and is positioned outside the filter cavity; the upper end of the filter cavity is provided with a water inlet pipe, and the water outlet end of the water inlet pipe sequentially penetrates through the side wall of the filter cavity and the central shaft of the other seal cover and is positioned in the cylindrical filter screen;
A second-stage filtering device is arranged in the filtering cavity and below the first-stage filtering device, the second-stage filtering device comprises a hemispherical filtering net with an opening at the upper end, the upper edge of the hemispherical filtering net is abutted against the inner wall of the filtering cavity, a sludge discharge pipe is arranged at the bottom end of the hemispherical filtering net, the sludge discharge pipe extends downwards and penetrates out of the filtering cavity, and a first valve is arranged on the sludge discharge pipe;
The water distribution device is characterized in that a water distribution disc is arranged below the hemispherical filter screen on the bottom plate of the filter cavity, one side of the filter cavity is arranged at the lower end of the hemispherical filter screen and is provided with a water outlet pipe, a water diversion pipe is arranged on the water outlet pipe, the water outlet end of the water diversion pipe is communicated with the water distribution disc, a second valve is arranged on the water diversion pipe, and a high-pressure pump is further arranged on the water diversion pipe.
Preferably, the extension end at cylinder filter screen both ends all is fixed to be provided with a plurality of stationary blades that are annular interval arrangement, seted up in the closing cap with stationary blade assorted fixed slot, the stationary blade joint is in the fixed slot, will the cylinder filter screen with the connection can be dismantled to the closing cap.
Preferably, the number of the fixing pieces is 3.
Preferably, the diameter of the mesh of the cylindrical screen is larger than that of the mesh of the hemispherical screen.
Preferably, the bottom of hemisphere filter screen is equipped with a plurality of supports, the one end of support with the bottom rigid coupling of hemisphere filter screen, the other end with the bottom plate rigid coupling of filter chamber.
Preferably, one surface of the water distribution disc, which faces the hemispherical filter screen, is provided with a plurality of spraying holes.
Compared with the prior art, the beneficial effects of the utility model reside in that:
The utility model discloses a preprocessing device for water quality analysis has set up two-stage filter equipment, can carry out fine filtering to solid particle thing and the flocculent suspended solid in the water sample, and wherein, one-level filter equipment sets up to the mode that can rotate and filters, avoids the jam of particulate matter gravity extrusion to the filtration pore, can prolong the live time, avoids frequent processing, change; the secondary filter device is provided with a back washing device, so that filter holes can be cleaned under the condition of keeping the structure of the device unchanged, and blockage is prevented. The utility model discloses simple structure, it is efficient to get rid of, and can prevent the jam in filtration pore, possesses wide application prospect.
Drawings
FIG. 1 is a schematic structural diagram of a pretreatment device for water quality analysis provided by the present invention;
FIG. 2 is a schematic structural diagram of a filter cartridge in a pretreatment device for water quality analysis provided by the present invention;
FIG. 3 is a schematic structural diagram of a cylindrical filter screen in the pretreatment device for water quality analysis provided by the present invention;
Fig. 4 is a schematic structural diagram of a sealing cover in a pretreatment device for water quality analysis provided by the present invention.
Description of reference numerals: 1-cylindrical filter screen, 2-sealing cover, 3-first bearing, 4-crank, 5-water inlet pipe, 6-hemispherical filter screen, 7-sludge discharge pipe, 8-first valve, 9-water distribution plate, 10-water outlet pipe, 11-water distribution pipe, 12-second valve, 13-high pressure pump, 14-support, 16-fixing piece and 17-fixing groove.
Detailed Description
the following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.
It should be noted that the high-pressure pump used in the present invention is a micro high-pressure pump, the brand is a high wave, the model is 15TDB-120, and the high-pressure pump adopts conventional electrical connection, and does not involve any innovation.
A pretreatment device for water quality analysis is disclosed, which is shown in figure 1-4, and comprises a cylindrical filter chamber with an opening at the upper end, a primary filter device is arranged at the upper end in the filter chamber, the primary filter device comprises a filter cartridge transversely arranged in the filter chamber, the filter cartridge comprises a cylindrical filter screen 1 and sealing covers 2 detachably arranged at two ends of the cylindrical filter screen 1; one side of filter chamber inner wall is equipped with first bearing 3, relative opposite side is equipped with the second bearing, 2 sliding connections of a closing cap are in first bearing 3, 2 sliding connections of another closing cap are in the second bearing, this kind of mode of setting can make closing cap 2 free rotation in first bearing 3 and second bearing, thereby make the cartridge filter at the filter chamber internal rotation filtration, the bottom of cylinder filter screen 1 is piled up for a long time to the particulate matter of intercepting in the cylinder filter screen 1 after avoiding filtering, then under the effect of gravity, a large amount of solid particles cause the jam to the filtration pore of cylinder filter screen 1, thereby influence the filter effect or will often manual cleaning.
One of the sealing covers 2 is fixedly connected with a crank handle 4, and the other end of the crank handle 4 penetrates through the side wall of the filter cavity and is positioned outside the filter cavity; the setting of crank 4 is that convenient to use person can drive the cartridge filter through the rotation of crank 4 and rotate to avoid the filter residue to receive gravity extrusion jam filtration pore.
The upper end of the filter cavity is provided with a water inlet pipe 5, and the water outlet end of the water inlet pipe 5 sequentially passes through the side wall of the filter cavity and the central shaft of the other sealing cover 2 and is positioned in the cylindrical filter screen 1. The arrangement mode can lead the inlet water to enter the next working procedure after being filtered by the cylindrical filter screen 1. Meanwhile, the water outlet end of the water inlet pipe 5 sequentially penetrates through the side wall of the filter cavity and the central shaft of the other sealing cover 2 and then enters the cylindrical filter screen 1, and the arrangement mode enables the position of the water inlet pipe 5 to be kept fixed and is not influenced by the rotation of the filter cartridge.
The department that is located one-level filter equipment's below in the filter chamber is equipped with second grade filter equipment, and second grade filter equipment includes the open hemisphere filter screen 6 in upper end, and the mesh diameter of cylinder filter screen 1 is greater than the mesh diameter of hemisphere filter screen 6, just so can form the clear second grade of level and filter the form. The upper edge of the hemispherical filter screen 6 is abutted against the inner wall of the filter cavity, so that the effluent of the primary filter device can completely enter the hemispherical filter screen 6.
A sludge discharge pipe 7 is arranged at the bottom end of the hemispherical filter screen 6, the sludge discharge pipe 7 extends downwards and penetrates out of the filter cavity, and a first valve 8 is arranged on the sludge discharge pipe 7; the play water after hemisphere filter screen 6 filters all gets into the filter chamber from 6 lateral walls of hemisphere filter screen, and the particulate matter of holding back then deposits the bottom of hemisphere filter screen 6, when piling up enough much, opens first valve 8 again, discharges the filter chamber by mud pipe 7.
A water distribution disc 9 is arranged on the bottom plate of the filter cavity and below the hemispherical filter screen 6, a plurality of spraying holes are formed in one surface, facing the hemispherical filter screen 6, of the water distribution disc 9, a water outlet pipe 10 is arranged at the lower end of the hemispherical filter screen 6 and on one side of the filter cavity, a water diversion pipe 11 is arranged on the water outlet pipe 10, the water outlet end of the water diversion pipe 11 is communicated with the water distribution disc 9, a second valve 12 is arranged on the water diversion pipe 11, and a high-pressure pump 13 is further arranged on the water diversion pipe 11. After the hemispherical filter screen 6 is used for a long time, the filter holes are blocked, and at this time, the water distribution disc 9 arranged below the hemispherical filter screen 6 sprays high-pressure water upwards to back flush the hemispherical filter screen 6 to flush out particles blocked in the filter holes, so that the problem of blocking of the filter holes is solved. It should be noted that the backwashing water may be from the filtered effluent, and at this time, the second valve 12 is opened; and external clean water can be pumped by the high-pressure pump 13 for back flushing.
The utility model discloses in, the extension end at 1 both ends of cylinder filter screen is all fixed 3 stationary blades 16 that are annular interval arrangement, offer in the closing cap 2 with 16 assorted fixed slots 17 of stationary blade, the 16 joints of stationary blade can be dismantled cylinder filter screen 1 and closing cap 2 and be connected in fixed slot 17. When the amount of the filter residues in the filter cartridge is accumulated to a certain degree, the filter residues need to be taken down from the first bearing 3 and the second bearing for cleaning, and when the filter residues are cleaned, the sealing covers 2 at the two ends of the cylindrical filter screen 1 are pulled out, so that the filter residues in the cylindrical filter screen 1 can be withdrawn; meanwhile, the fixing pieces 16 are arranged at intervals in an annular shape, so that the two ends of the cylindrical filter screen 1 can be well fixedly clamped in the sealing cover 2 and synchronously rotate along with the sealing cover 2, and the cylindrical filter screen 1 is prevented from being always in the same position and not moving due to the influence of gravity of filter residues when the sealing cover 2 rotates.
The bottom of the hemispherical filter screen 6 is provided with a plurality of brackets 14, one end of each bracket 14 is fixedly connected with the bottom of the hemispherical filter screen 6, and the other end of each bracket 14 is fixedly connected with the bottom plate of the filter cavity. The bracket 14 is mainly used for supporting the hemispherical filter screen 6, and the hemispherical filter screen 6 is spaced from the bottom plate of the filter chamber, so that the water distribution plate 9 is conveniently arranged on the bottom plate.
In the present invention, the above disclosure is only the specific embodiments of the present invention, however, the embodiments of the present invention are not limited thereto, and any changes that can be considered by those skilled in the art should fall into the protection scope of the present invention.
Claims (6)
1. the pretreatment device for water quality analysis is characterized by comprising a cylindrical filter cavity with an opening at the upper end, wherein a primary filter device is arranged at the upper end in the filter cavity and comprises a filter cylinder transversely arranged in the filter cavity, and the filter cylinder comprises a cylindrical filter screen (1) and sealing covers (2) detachably arranged at two ends of the cylindrical filter screen (1); one side of the inner wall of the filtering cavity is provided with a first bearing (3), the other side of the inner wall of the filtering cavity is provided with a second bearing, one sealing cover (2) is connected in the first bearing (3) in a sliding mode, and the other sealing cover (2) is connected in the second bearing in a sliding mode; a crank (4) is fixedly connected to one of the sealing covers (2), and the other end of the crank (4) penetrates through the side wall of the filter cavity and is positioned outside the filter cavity; the upper end of the filter cavity is provided with a water inlet pipe (5), and the water outlet end of the water inlet pipe (5) sequentially penetrates through the side wall of the filter cavity and the central shaft of the other seal cover (2) and is positioned in the cylindrical filter screen (1);
A second-stage filtering device is arranged in the filtering cavity and below the first-stage filtering device, the second-stage filtering device comprises a hemispherical filtering net (6) with an opening at the upper end, the upper edge of the hemispherical filtering net (6) is abutted against the inner wall of the filtering cavity, a sludge discharge pipe (7) is arranged at the bottom end of the hemispherical filtering net (6), the sludge discharge pipe (7) extends downwards and penetrates out of the filtering cavity, and a first valve (8) is arranged on the sludge discharge pipe (7);
Be located on the bottom plate of filter chamber the below department of hemisphere filter screen (6) is equipped with water distribution dish (9), one side of filter chamber is located the lower extreme department of hemisphere filter screen (6) is equipped with outlet pipe (10), be equipped with distributive pipe (11) on outlet pipe (10), the play water end of distributive pipe (11) with water distribution dish (9) intercommunication, be equipped with second valve (12) on distributive pipe (11), still be equipped with high-pressure pump (13) on distributive pipe (11).
2. The pretreatment device for water quality analysis according to claim 1, wherein a plurality of fixing pieces (16) are fixedly arranged at the extending ends of the two ends of the cylindrical filter screen (1) at intervals in a ring shape, fixing grooves (17) matched with the fixing pieces (16) are formed in the sealing cover (2), the fixing pieces (16) are clamped in the fixing grooves (17), and the cylindrical filter screen (1) is detachably connected with the sealing cover (2).
3. The pretreatment device for water quality analysis according to claim 2, wherein the number of the fixing pieces (16) is 3.
4. A pretreatment device for water quality analysis according to claim 1, wherein the mesh diameter of the cylindrical screen (1) is larger than that of the hemispherical screen (6).
5. the pretreatment device for water quality analysis according to claim 1, wherein a plurality of brackets (14) are arranged at the bottom end of the hemispherical filter screen (6), one end of each bracket (14) is fixedly connected with the bottom end of the hemispherical filter screen (6), and the other end of each bracket (14) is fixedly connected with the bottom plate of the filter chamber.
6. The pretreatment device for water quality analysis according to claim 1, wherein a plurality of spraying holes are formed on one surface of the water distribution plate (9) facing the hemispherical filter screen (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920570637.2U CN209764544U (en) | 2019-04-24 | 2019-04-24 | pretreatment device for water quality analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920570637.2U CN209764544U (en) | 2019-04-24 | 2019-04-24 | pretreatment device for water quality analysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209764544U true CN209764544U (en) | 2019-12-10 |
Family
ID=68760369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920570637.2U Expired - Fee Related CN209764544U (en) | 2019-04-24 | 2019-04-24 | pretreatment device for water quality analysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209764544U (en) |
-
2019
- 2019-04-24 CN CN201920570637.2U patent/CN209764544U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191210 Termination date: 20200424 |