Denitrification reactor

Abstract

The utility model discloses a denitrification reactor, which belongs to the technical field of denitrification reactor related equipment and comprises a shell, a barrier net and a water distribution unit. A water inlet pipe and a water outlet pipe are arranged at the corresponding positions of the side wall of the shell; a filler unit is arranged inside; the barrier net is arranged below the filler unit; the water distribution unit is arranged in the shell and located below the blocking net, the water distribution unit is communicated with the water inlet pipe, and a water body outlet of the water distribution unit faces the blocking net, so that the blocking net is prevented from being blocked by deposition, and sewage can pass through the blocking net and pass through the filler unit. And the water outlets uniformly distributed in the water distribution unit can improve the water distribution uniformity.

Description

Technical Field

[0001] The utility model belongs to the technical field of denitrification reactor related equipment, in particular to a denitrification reactor. Background Art

[0002] A denitrification reactor is a device used to treat waste gas or wastewater. It is highly adaptable to different process conditions and application scenarios, and can treat different types and concentrations of waste gas or wastewater to meet various treatment requirements and emission standards. In biological denitrification, organic nitrogen and ammonia nitrogen in wastewater are converted into nitrogen gas through the nitrification and denitrification processes of microorganisms, thereby being removed.

[0003] The water distributor of the denitrification reactor is generally inserted into the gravel layer at the bottom. Unstable placement leads to instability in the connection between the water distributor and the water inlet pipe during pressurized water injection. In addition, the flocs generated below the packing layer can easily block the water outlet of the water distributor or settle and accumulate on the screen above the water distributor, affecting the water distribution effect. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a denitrification reactor.

[0005] The technical solution adopted by the present invention is as follows: a denitrification reactor, comprising a shell, a barrier net and a water distribution unit; the shell has a corresponding accommodating chamber, and a water inlet pipe and a water outlet pipe are arranged at corresponding positions on the side wall; a packing unit is arranged inside; the barrier net is arranged below the packing unit; the water distribution unit is arranged in the shell and located below the barrier net, the water distribution unit is connected to the water inlet pipe, and the water outlet direction of the water distribution unit is toward the barrier net.

[0006] Furthermore, the water distribution unit includes a base, a water distribution pipe, a water distribution chamber and a water distribution branch pipe; the base has corresponding supporting force; the water distribution pipe is fixed to the upper end surface of the base, and a connector that can be connected to an external water source is configured laterally; the water distribution chamber is arranged at the top of the water distribution pipe and is connected to the water distribution pipe; the water distribution branch pipe is connected to the water distribution chamber and is connected to the water distribution chamber, and the water outlets of the water distribution branch pipes are arranged at intervals along the radial direction of the water distribution chamber.

[0007] Furthermore, a maintenance door is provided at a corresponding position on the side of the shell, and the maintenance door is used for maintaining the barrier net.

[0008] Furthermore, the water distribution branch pipe includes a water distribution branch pipe 1 arranged at the top of the water distribution chamber and a water distribution branch pipe 2 arranged on the side of the water distribution chamber. The water distribution branch pipe 1 is arranged at intervals along the radial direction of the water distribution chamber and multiple groups are set. The water distribution branch pipe 2 is arranged on the side wall of the water distribution chamber, extends radially and extends upward at the far end of the extension, so that the water outlet is directed toward the barrier net for water discharge operation. The connecting end of the water distribution branch pipe 2 and the water distribution chamber can be arranged up and down, and after extending to a predetermined length, they are bent and extended upward, so that the water outlet is directed toward the barrier net and arranged along the radial direction of the water distribution chamber with the water outlet of the water distribution branch pipe 1, so that the water outlet openings are evenly distributed below the barrier net, which facilitates uniform water distribution.

[0009] After adopting the above structure, the beneficial effects of the present invention are as follows: the present invention proposes a denitrification reactor, in which the water distribution unit can be stably placed inside the shell of the denitrification reactor through a base, and through multiple groups of water distribution ports arranged at radial intervals along the water distribution cavity, water is evenly distributed from the bottom to the upper filler layer, thereby improving the uniformity of water distribution; through the provided barrier net, the flocs formed in the reactor are prevented from clogging the water distribution ports. In addition, the evenly arranged water distribution ports, with openings facing the barrier net above, can form an impact water flow to the barrier net, thereby preventing the flocs and sediments formed from settling and accumulating on the barrier net, causing uneven water distribution or directly affecting the water distribution effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0011] Figure 1 This is a schematic diagram of the overall structure of a denitrification reactor proposed in the utility model;

[0012] Figure 2 This is a schematic structural diagram of a water distribution unit of a denitrification reactor proposed in the present invention;

[0013] Figure 3 This is a schematic diagram of the internal structure of the water distribution chamber of a denitrification reactor proposed in the present invention;

[0014] Figure 4 This is a top view of the positional relationship between the water distribution unit and the barrier net of a denitrification reactor proposed by the utility model.

[0015] In the attached drawings: 1. Shell, 2. Water inlet pipe, 3. Water outlet pipe, 4. Filling unit, 5. Barrier net, 6. Water distribution unit, 7. Base, 8. Water distribution pipe, 9. Water distribution cavity, 10. Maintenance door, 11. Water distribution branch pipe 1, 12. Water distribution branch pipe 2, 13. Connector. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0017] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0018] like Figures 1-4 As shown, a denitrification reactor comprises a housing 1, a barrier screen 5, and a water distribution unit 6. The housing 1 has a corresponding accommodating chamber, with a water inlet pipe 2 and a water outlet pipe 3 disposed at corresponding positions on the sidewalls. A packing unit 4 is disposed within the housing. The barrier screen 5 is disposed below the packing unit 4 and is used to block sediment formed within the denitrification reactor (the sediment primarily comprises residual sludge and biomass generated during the biological treatment process, which contains a large amount of organic matter and nutrients such as nitrogen and phosphorus, and has high recycling value), thereby blocking and sealing the water outlet of the water distribution unit 6. The barrier screen 5 can be made of a metal mesh with a certain porosity. Preferably, a maintenance door 10 is provided at a corresponding position on the side of the housing 1. The maintenance door 10 is used for maintaining the barrier screen 5, facilitating cleaning and replacement of the barrier screen 5. The barrier screen 5 is detachably disposed at a corresponding position within the reactor housing 1 (how to detachably configure the barrier screen is known in the art and will not be further described in this embodiment). After opening the maintenance door 10, the barrier screen 5 can be removed or cleaned, which also facilitates the recovery of the sediment. When the maintenance door 10 is closed, it is sealed with the housing 1 , which is a prior art and will not be described in detail here.

[0019] It should be noted that the reactor also includes other necessary functional components for wastewater denitrification operations, but they are not the improvements involved in this application and will not be described in detail in this application.

[0020] In some preferred embodiments, a water distribution unit 6 is disposed within the housing 1 and below the barrier mesh 5. The water distribution unit 6 is in communication with the water inlet pipe 2, with the water outlet of the water distribution unit 6 directed toward the barrier mesh 5. After water enters the water inlet pipe 2, the water enters the water distribution unit 6, and the wastewater is discharged toward the barrier mesh 5 through the water distribution unit 6, forming an impact water body that impacts the barrier mesh 5. Sediment formed below the packing unit 4 in the reactor is impacted by the water body and does not settle on the barrier mesh 5, causing uneven water distribution.

[0021] In some preferred embodiments, the water distribution unit 6 includes a base 7, a water distribution pipe 8, a water distribution chamber 9 and a water distribution branch pipe; the base 7 has corresponding supporting force; the water distribution pipe 8 is fixed to the upper end surface of the base 7. Preferably, the lower part of the water distribution pipe 8 can be plugged and fixed on the base 7, and a fixing ring of a predetermined length can be provided at the plug-in position, wrapped around the outside of the lower end of the water distribution pipe 8 to make the plug-in more stable. In addition, the water supply pipe is laterally configured with a connector 13 that can be connected to an external water source, and the connector 13 can be connected to the water inlet pipe 2, through threaded connection or flange connection, etc., to ensure a stable connection during pressurization; the water distribution chamber 9 is arranged at the top of the water distribution pipe 8 and is connected to the water distribution pipe 8; the water distribution branch pipe is connected to the water distribution chamber 9 and is connected to the water distribution chamber 9, and the water outlets of the water distribution branch pipes are arranged at intervals along the radial direction of the water distribution chamber 9.

[0022] Among them, it is preferred that the water distribution branch pipe includes a water distribution branch pipe 11 configured at the top of the water distribution chamber 9 and a water distribution branch pipe 2 12 configured on the side of the water distribution chamber 9. The water distribution branch pipe 11 is arranged at intervals along the radial direction of the water distribution chamber 9 and multiple groups are provided. The water distribution branch pipe 2 12 is arranged on the side wall of the water distribution chamber 9, extends radially and extends upward at the far end of the extension, so that the water outlet is directed toward the barrier net 5 for water discharge operation. Furthermore, the connection end of the water distribution branch pipe 2 12 and the water distribution chamber 9 can be arranged up and down, and after extending to a predetermined length, they are bent and extended upward, so that the water outlet is directed toward the barrier net 5 and the water outlet of the water distribution branch pipe 1 1 is arranged along the radial direction of the water distribution chamber 9, so that the water outlet openings are evenly distributed below the barrier net 5, which is convenient for uniform water distribution. The specific arrangement of the water outlet openings can be referred to. Figure 3 , evenly arranged along the radial direction of the barrier net 5.

[0023] The specific use is as follows: the device is placed in a suitable operating position. The shell 1 of the reactor contains a cylindrical receiving chamber. The barrier net 5 is adapted to the receiving chamber in the shell 1 of the reactor. The water distribution unit 6 is adapted to the receiving chamber in the shell 1 of the reactor and is arranged below the barrier net 5 through the base 7. The water inlet pipe 2 can be connected to the booster pump to inject sewage into the water distribution unit 6. The water inlet pipe 2 is connected to the water distribution unit 6. The sewage enters the water distribution pipe 8 from the water inlet pipe 2 and flows into the water distribution chamber 9. It is discharged upward to the barrier net 5 through the water distribution branch pipe 1 11 and the water distribution branch pipe 2 12 connected to the water distribution chamber 9. It passes through the barrier net 5 and ascends to the packing unit 4. After sufficient reaction, it is discharged from the drain pipe to complete the treatment of the sewage. During the reaction process, the sediment generated below the packing unit 4 in the reactor is impacted by the water flow, which prevents the sediment from clogging the barrier net 5, allowing the sewage to ascend through the barrier net 5 and pass through the packing unit 4. In addition, the evenly distributed water outlets of the water distribution unit 6 can improve the uniformity of water distribution.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents. In short, if those skilled in the art are inspired by this, and without departing from the purpose of the invention of the present invention, they can design structural methods and embodiments similar to the technical solution without creativity, and they should all fall within the scope of protection of the present invention. Each component of the present application can be driven by a corresponding external motor, which is a prior art and will not be described in detail in this application.

Claims

1. A denitrification reactor, characterized in that: include: The shell has a corresponding accommodating chamber, and the corresponding positions of the side walls are provided with a water inlet pipe and a water outlet pipe; the interior is provided with a filler unit; A barrier net is arranged below the filler unit; The water distribution unit is arranged in the shell and located below the barrier net. The water distribution unit is connected to the water inlet pipe, and the water outlet of the water distribution unit is directed toward the barrier net.

2. A denitrification reactor according to claim 1, characterized in that: The water distribution unit includes: The base has corresponding supporting force; The water distribution pipe is fixed on the upper end surface of the base and has a connector for connecting to an external water source on the side; A water distribution chamber is provided at the top of the water distribution pipe and is connected to the water distribution pipe; The water distribution branch pipe is connected to the water distribution cavity and communicates with the water distribution cavity. The water outlets of the water distribution branch pipe are arranged at intervals along the radial direction of the water distribution cavity.

3. A denitrification reactor according to claim 1, characterized in that: A maintenance door is provided at a corresponding position on the side of the shell, and the maintenance door is used for maintaining the barrier net.

4. A denitrification reactor according to claim 2, characterized in that: The water distribution branch pipes include a water distribution branch pipe 1 arranged at the top of the water distribution cavity and a water distribution branch pipe 2 arranged at the side of the water distribution cavity.

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