CN217676993U - Device for eliminating drop oxygenation of denitrification filter - Google Patents
Device for eliminating drop oxygenation of denitrification filter Download PDFInfo
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- CN217676993U CN217676993U CN202221281447.7U CN202221281447U CN217676993U CN 217676993 U CN217676993 U CN 217676993U CN 202221281447 U CN202221281447 U CN 202221281447U CN 217676993 U CN217676993 U CN 217676993U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
A device for eliminating drop oxygenation of a denitrification filter comprises a main water inlet channel, a branch water inlet channel, a weir wall and a water outlet pipe; a weir wall is arranged between the main water inlet channel and the branch water inlet channel for connection; an arc weir plate is fixed on the wall at the upper end of the weir wall in the water dividing channel, and the arc weir plate is formed by integrally connecting a straight plate section, an arc section and an inclined plate section which are sequentially arranged from bottom to top; the arc-shaped section is higher than the top end of the weir wall and is bent towards the direction of the total water inlet channel, and the inclined plate section passes over the weir wall and extends into the total water inlet channel and is obliquely suspended downwards; the wall of the weir wall below the bottom end of the arc weir plate is connected with a slope-shaped retaining wall, and the retaining wall slope is inclined downwards from the weir wall at the bottom end of the arc weir plate to the water inlet channel and the bottom end of the retaining wall slope is the bottom end of the channel; the top height of the retaining wall is consistent with the bottom height of the arc-shaped weir plate; the arc-shaped weir plate and the top end of the retaining wall are arranged along the whole length of the weir wall. The utility model discloses reduce the drop of low reaches water level and bottom of the pool, the dissolved oxygen concentration that produces when eliminating the denitrification filtering pond drop.
Description
Technical Field
The utility model relates to the technical field of water treatment, in particular to a device for eliminating drop oxygenation of a denitrification filter tank.
Background
With the increasing requirement on the quality of the watershed water environment in China, the effluent of a plurality of sewage treatment plants face the requirement of advanced treatment. Wherein, the total nitrogen TN of the effluent of the sewage plant is an important index for upgrading. Therefore, the denitrification filter for biological denitrification is widely applied to advanced sewage treatment.
The water inlet of the denitrification filter tank generally enters each grid of tank body by adopting a non-submerged falling weir, falling after the weir generally produces falling water which can lead the water inlet to be oxygenated, the denitrification reaction of the filter tank needs an anoxic environment, and the removal of total nitrogen is influenced by overhigh concentration of dissolved oxygen in the water inlet. In order to ensure the denitrification effect, the denitrification environment can be ensured only by adding a carbon source to consume dissolved oxygen, so that the operation cost is increased due to the increase of the adding amount of the carbon source, and the Chemical Oxygen Demand (COD) and the Biochemical Oxygen Demand (BOD) of effluent are easy to cause 5 Is out of limits. Therefore, a solution is needed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a device for eliminating denitrification filtering pond drop oxygenating, its aim at solve the too high technical problem of raw water dissolved oxygen concentration who gets into the denitrification filtering pond. By the device, the dissolved oxygen concentration of the denitrification filter tank during water drop can be reduced, the anoxic environment is ensured to be favorable for denitrification, the addition of carbon sources is reduced, and the operation cost is saved.
The technical scheme of the utility model as follows:
a device for eliminating drop oxygenation of a denitrification filter comprises a main water inlet channel 1, a branch water inlet channel 2, a weir wall 3 and a water outlet pipe 10; the weir wall is arranged between the main water inlet channel and the branch water inlet channel for connection; it is characterized in that the preparation method is characterized in that,
an arc weir plate is fixed on the wall at the upper end of the weir wall 3 in the water dividing channel 2, and the arc weir plate is formed by integrally connecting a straight plate section 4, an arc section 5 and an inclined plate section 6 which are sequentially arranged from bottom to top; the arc-shaped section 5 is higher than the top end of the weir wall and is bent towards the direction of the total water inlet channel 1, and the inclined plate section extends over the weir wall 3 to enter the total water inlet channel 1 and is obliquely suspended downwards;
the wall of the weir wall below the bottom end of the arc weir plate is connected with a slope-shaped retaining wall 9, and a retaining wall slope surface 91 is inclined downwards from the weir wall at the bottom end of the arc weir plate into the water inlet channel 2 and from the bottom end to the bottom of the channel; the top height of the retaining wall is consistent with the bottom height of the arc-shaped weir plate;
the arc-shaped weir plate and the retaining wall top end are arranged along the full length of the weir wall.
The device for eliminating drop oxygenation of the denitrification filter is characterized in that a weir plate pressing strip 8 is padded on the inner side of the straight plate section and welded and connected into a whole and then fixed on a weir wall through a chemical bolt 7; the arc section 5 is an arc plate with an arc angle of 90 degrees, and the inclined plate section 6 is an inclined straight plate which is suspended along the arc section in an inclined downward inclined angle of 10 degrees; the straight plate section, the arc section and the inclined plate section are connected smoothly.
The device for eliminating drop oxygenation of the denitrification filter tank is characterized in that the arc-shaped weir plate is a stainless steel plate.
The device for eliminating drop oxygenation of the denitrification filter is characterized in that the retaining wall 9 is a plain concrete secondary pouring structure; the height of the bottom of the retaining wall is consistent with that of the bottom of the downstream water body.
The utility model provides a device for eliminating denitrification filtering pond drop oxygenation, wherein, divide 2 bottoms of ditch to set up outlet pipe 10, set up the piping erection distance between barricade bottom and the outlet pipe.
The device for eliminating drop water oxygenation of the denitrification filter tank is characterized in that a guide wall 92 with a slope surface is arranged on one side wall in the channel adjacent to the weir wall, inclines towards the interior of the channel and has a bottom end reaching the bottom of the channel; a pipeline installation distance is arranged between the bottom of the guide wall and the water outlet pipe; retaining wall slope and the domatic handing-over constitution of water conservancy diversion wall to the domatic barricade that encloses of outlet pipe 10 slope.
The beneficial effects of the utility model
The utility model discloses combine together arc weir plate and barricade, utilize the water conservancy diversion of weir plate and the slope of barricade, carry out the drainage to the water, make the water enter into the outlet pipe of branch water channel gently along the barricade, reduce the drop of low reaches water level and bottom of the pool to the dissolved oxygen concentration who produces when eliminating the denitrification filtering pond drop reduces the additional carbon source quantity, practices thrift the running cost.
Drawings
Figure 1 is a schematic top view of the present invention,
figure 2 isbase:Sub>A schematic cross-sectional viewbase:Sub>A-base:Sub>A of figure 1,
description of the figure numbering:
1-total water inlet channel, 2-branch water inlet channel, 3-weir wall, 4-straight plate section, 5-arc section, 6-inclined plate section, 7-chemical bolt, 8-weir plate depression bar, 9-retaining wall, retaining wall slope surface 91, guide wall 92, 10-water outlet pipe
Detailed Description
The following detailed description is given for clarity of explanation and is not to be construed as limiting the embodiments of the present invention. Other variations and modifications of the present invention will be apparent to those of ordinary skill in the art based on the following description, and it is within the spirit of the present invention that such variations and modifications are within the scope of the present invention.
Referring to fig. 1 and 2, the device for eliminating drop oxygenation of the denitrification filter comprises a main water inlet channel 1, a branch water inlet channel 2, a weir wall 3 and a water outlet pipe 10; the weir wall is arranged between the main water inlet channel and the branch water inlet channel for connection;
an arc weir plate is fixed on the wall at the upper end of the weir wall 3 in the water dividing channel 2, and the arc weir plate is formed by integrally connecting a straight plate section 4, an arc section 5 and an inclined plate section 6 which are sequentially arranged from bottom to top; the arc-shaped section 5 is higher than the top end of the weir wall and is bent towards the direction of the total water inlet channel 1, and the inclined plate section extends over the weir wall 3 to enter the total water inlet channel 1 and is obliquely suspended downwards;
the wall of the weir wall below the bottom end of the arc-shaped weir plate is connected with a slope-shaped retaining wall 9, and a retaining wall slope surface 91 is inclined downwards from the weir wall at the bottom end of the arc-shaped weir plate into the water inlet channel 2 and from the bottom end to the bottom of the channel; the top height of the retaining wall is consistent with the bottom height of the arc-shaped weir plate;
the arc-shaped weir plate and the retaining wall top end are arranged along the full length of the weir wall.
The device for eliminating drop oxygenation of the denitrification filter tank is characterized in that weir plate pressing strips 8 are padded on the inner sides of the straight plate sections and welded and connected into a whole, and then the straight plate sections are fixed on a weir wall through chemical bolts 7; the arc section 5 is an arc plate with an arc angle of 90 degrees, and the inclined plate section 6 is an inclined straight plate which is suspended along the arc section in an inclined downward inclined angle of 10 degrees; the straight plate section, the arc section and the inclined plate section are connected smoothly.
The device for eliminating drop oxygenation of the denitrification filter tank is characterized in that the arc-shaped weir plate is a stainless steel plate.
The device for eliminating drop oxygenation of the denitrification filter tank is characterized in that the retaining wall 9 is of a plain concrete secondary pouring structure; the height of the bottom of the retaining wall is consistent with the height of the bottom of a downstream water body.
The utility model provides a device for eliminating denitrification filtering pond drop oxygenating, wherein, divide 2 bottoms in ditch to set up outlet pipe 10, set up the pipe-line erection distance between barricade bottom and the outlet pipe.
The device for eliminating drop oxygenation of the denitrification filter is characterized in that a guide wall 92 with a slope surface is arranged on one side wall in the canal adjacent to the weir wall, inclines into the canal and is from the bottom end to the bottom of the canal; a pipeline installation distance is arranged between the bottom of the guide wall and the water outlet pipe; retaining wall slope and the domatic handing-over constitution of water conservancy diversion wall to the domatic barricade that encloses of outlet pipe 10 slope. The outlet pipe 10 is arranged in a corner. The guide wall 92 is a plain concrete secondary pouring structure.
Examples
Increase the denitrification filtering pond and carry out denitrogenation processing in certain sewage treatment plant carries out the standard improvement transformation engineering, through total inlet channel, branch inlet channel 2 drops, the difference in height of total inlet channel water level and branch inlet channel water level is great simultaneously, causes seriously oxygenating when solving the drop, is unfavorable for going on of denitrification, for making out that the total nitrogen of water is up to standard and reduce the carbon source and throw, sets up and is used for eliminating the drop and oxygenate the utility model discloses the device. The present invention is further explained with reference to fig. 1 and 2.
The utility model provides a device for eliminating denitrification filtering pond drop oxygenating, includes arc weir plate, total inlet channel 1, divides inlet channel 2, weir wall 3, straight board section 4, arc section 5, ramp section 6, chemical bolt 7, weir plate layering 8, barricade 9, outlet pipe 10. Raw water is guided by the inclined plate section 6 and the arc section 5 from the main water inlet channel 1 and then enters the branch water inlet channel 2 through the drainage of the straight plate section 4. The bottom of the sub water channel 2 is provided with the water outlet pipe 10, the two sides of the water outlet pipe 10 are provided with the inclined retaining wall 9 and the guide wall 92, and after raw water enters the sub water channel 2, water flow is enabled to flow by being attached to the retaining wall 9 and the guide wall 92 and finally smoothly and uniformly flows into the water outlet pipe 10 along the retaining wall 9 and the guide wall 92, so that dissolved oxygen rising caused by a large amount of water drop is avoided, the increase of carbon source adding amount of the denitrification filter caused by water drop oxygenation can be effectively eliminated, and the operation cost is saved.
Claims (6)
1. A device for eliminating drop oxygenation of a denitrification filter comprises a main water inlet channel (1), a sub water inlet channel (2), a weir wall (3) and a water outlet pipe (10); the weir wall is arranged between the main water inlet channel and the branch water inlet channel for connection; it is characterized in that the preparation method is characterized in that,
an arc weir plate is fixed on the wall of the upper end of the weir wall (3) in the water inlet channel (2), and the arc weir plate is formed by integrally connecting a straight plate section (4), an arc section (5) and an inclined plate section (6) which are sequentially arranged from bottom to top; the arc-shaped section (5) is higher than the top end of the weir wall and is bent towards the direction of the main water inlet channel (1), and the inclined plate section crosses over the weir wall (3) and extends into the main water inlet channel (1) and is obliquely suspended downwards;
the wall of the weir wall below the bottom end of the arc weir plate is connected with a slope-shaped retaining wall (9), and a retaining wall slope surface (91) inclines downwards from the weir wall at the bottom end of the arc weir plate into the water distribution channel (2) and from the bottom end to the bottom of the channel; the top height of the retaining wall is consistent with the bottom height of the arc-shaped weir plate;
the arc-shaped weir plate and the retaining wall top end are arranged along the full length of the weir wall.
2. The device for eliminating drop oxygenation of the denitrification filter tank as claimed in claim 1, wherein the weir plate pressing strips (8) are arranged on the inner sides of the straight plate sections, welded and connected into a whole and then fixed on a weir wall through chemical bolts (7); the arc-shaped section (5) is an arc-shaped plate with an arc angle of 90 degrees, and the inclined plate section (6) is an inclined straight plate which is suspended along the arc-shaped section and has an inclined downward inclination angle of 10 degrees; the straight plate section, the arc section and the inclined plate section are connected smoothly.
3. The apparatus for eliminating drop oxygenation in a denitrification filter according to claim 1, wherein the arc-shaped weir plate is a stainless steel plate.
4. The device for eliminating drop oxygenation of the denitrification filter tank as recited in claim 1, wherein the retaining wall (9) is a plain concrete secondary casting structure; the height of the bottom of the retaining wall is consistent with the height of the bottom of a downstream water body.
5. The device for eliminating drop oxygenation of the denitrification filter tank as recited in claim 1, wherein the water outlet pipe (10) is arranged at the bottom of the sub-water channel (2), and a pipeline installation distance is arranged between the bottom of the retaining wall and the water outlet pipe.
6. The device for eliminating drop oxygenation of the denitrification filter tank as recited in claim 5, wherein a side wall in the canal adjacent to the weir wall is a guide wall (92) with a slope, is inclined towards the inside of the canal and has a bottom end reaching the bottom of the canal; a pipeline installation distance is arranged between the bottom of the guide wall and the water outlet pipe; retaining wall slope and the domatic handing-over constitution of water conservancy diversion wall to the domatic barricade that encloses of outlet pipe (10) slope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221281447.7U CN217676993U (en) | 2022-05-25 | 2022-05-25 | Device for eliminating drop oxygenation of denitrification filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221281447.7U CN217676993U (en) | 2022-05-25 | 2022-05-25 | Device for eliminating drop oxygenation of denitrification filter |
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| Publication Number | Publication Date |
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| CN217676993U true CN217676993U (en) | 2022-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221281447.7U Active CN217676993U (en) | 2022-05-25 | 2022-05-25 | Device for eliminating drop oxygenation of denitrification filter |
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| Country | Link |
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| CN (1) | CN217676993U (en) |
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2022
- 2022-05-25 CN CN202221281447.7U patent/CN217676993U/en active Active
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