Liquid flow deoxidation device

Abstract

The utility model discloses a liquid flow deoxidization device which comprises an external flow guide pipe and an internal flow guide pipe which are assembled in a sleeving manner, and a filler interlayer is arranged between the external flow guide pipe and the internal flow guide pipe; end covers are arranged at the two ends of the external flow guide pipe, a water inlet hole is formed in one end cover, and a water outlet hole is formed in the other end cover; a rotating shaft is arranged in the center of the external flow guide pipe, the two ends of the rotating shaft are rotationally assembled with the corresponding end covers respectively, and stirring blades are arranged on the rotating shaft; and a water passing hole is formed in the side wall of the internal flow guide pipe. By adopting the liquid flow deoxidization device, the removal efficiency of dissolved oxygen in the liquid flow is improved, the reliability and the stability of each process section are guaranteed, and meanwhile, the adsorption and removal effects of suspended matters in water are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of dissolved oxygen regulation in sewage treatment, and in particular relates to a liquid flow deoxygenation device. Background Art

[0002] Rural domestic sewage treatment is an important part of improving rural living environment and improving the living standards of rural residents, and it is also an important symbol of rural modernization. With the improvement of rural living standards, flush toilets have become popular among farmers, washing water has increased, the domestic water consumption and centralized water supply rate in rural areas have increased year by year, and the discharge of rural domestic sewage has increased year by year. A large amount of rural domestic sewage has been discharged without treatment, which has become one of the main causes of environmental pollution such as eutrophication of rural areas, lakes and rivers. Rural sewage treatment has received more and more attention, and the construction of beautiful villages is also inseparable from the overall improvement of the rural environment. The vast majority of rural areas lack drainage and sewage treatment systems. A large amount of domestic sewage and domestic wastewater are directly discharged into rivers and ponds, which has caused water environment pollution and eutrophication to a large extent, and affected the living environment of rural people.

[0003] In the prior art, the common AO process has the problem that the dissolved oxygen in the influent is too high after multi-stage lifting, and the dissolved oxygen in the reflux liquid of the aerobic process section is extremely high, which directly affects the realization and stability of the anoxic and anaerobic section processes, resulting in low total nitrogen removal efficiency and turbulent effluent that does not meet the standards. Utility Model Content

[0004] In order to overcome the deficiencies in the prior art, the utility model aims to provide a liquid flow deoxygenation device to improve the removal efficiency of dissolved oxygen, ensure the reliability and stability of each process section, and at the same time, improve the adsorption and removal effect of suspended matter in water.

[0005] The utility model solves the above problems through the following technical means:

[0006] A liquid flow deoxygenation device comprises an external flow guide tube and an internal flow guide tube which are sleeved and assembled, wherein a filler interlayer is arranged between the external flow guide tube and the internal flow guide tube; end covers are arranged at both ends of the external flow guide tube, wherein one end cover is provided with a water inlet hole, and the other end cover is provided with a water outlet hole; a rotating shaft is arranged at the center of the external flow guide tube, wherein the two ends of the rotating shaft are rotatably assembled with the corresponding end covers respectively, and a stirring blade is arranged on the rotating shaft; a water through hole is arranged on the side wall of the internal flow guide tube.

[0007] Furthermore, the external guide tube, the filler interlayer and the internal guide tube are connected by fixing bolts.

[0008] Furthermore, the rotating shaft is rotatably assembled with the end cover via a bearing.

[0009] Furthermore, the rotating shaft and the end cover are installed and positioned by a retaining spring.

[0010] Furthermore, it also includes a fixed bracket, which is fixedly connected to the external flow guide pipe through a clamp.

[0011] Furthermore, the fixed bracket is a telescopic bracket.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] (1) The liquid flow deoxygenation device of the present application adopts a structure in which a biological filler interlayer is arranged between an external guide tube and an internal guide tube, so that the liquid flow (influent, reflux liquid, etc.) can be deoxygenated using two flow channels in the device. On the one hand, the liquid flow flows downward along the internal guide tube, and as the water depth increases, the dissolved oxygen in the water escapes upward; the high dissolved oxygen in the liquid flow forms a local aerobic environment in the device, and the middle interlayer filler is covered with a biofilm in the aerobic environment and consumes the dissolved oxygen; on the other hand, the shaft rotates under the impact of the influent water, and the stirring blade is driven to rotate by the shaft, and the escape of dissolved oxygen is accelerated under the stirring action of the stirring blade. At the same time, part of the dissolved oxygen liquid enters the filler interlayer through the water hole of the internal guide tube under the action of the stirring blade, and the biofilm consumes and removes this part of the dissolved oxygen, and can also adsorb and remove suspended matter in the water to a certain extent; therefore, the dissolved oxygen can be greatly removed under the action of the two flow channels, biofilm and stirring.

[0014] (2) Furthermore, the device is fixed by a telescopic fixing bracket, which is convenient for assembly and disassembly and has flexible usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a cross-sectional view of a preferred embodiment of the utility model;

[0017] Figure 2 It is a structural schematic diagram of a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing and simplifying the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0021] like Figure 1 to Figure 2 As shown, this embodiment provides a liquid flow deoxygenation device, including an external guide tube 5 and an internal guide tube 7 that are sleeved and assembled, a filler interlayer 6 is arranged between the external guide tube and the internal guide tube, and the external guide tube, the filler interlayer and the internal guide tube are connected by fixing bolts 8; both ends of the external guide tube are provided with end covers 1, one of the end covers is provided with a water inlet hole, and the other end cover is provided with a water outlet hole. In this embodiment, one end cover is evenly provided with a plurality of water inlet holes, and the other end cover is evenly provided with a plurality of water outlet holes; a rotating shaft 4 is arranged at the center of the external guide tube, and the two ends of the rotating shaft are rotatably assembled with the corresponding end covers respectively. Specifically, the rotating shaft is rotatably assembled with the end cover through a bearing 2, and the rotating shaft and the end cover are installed and positioned by a retaining spring 3; a stirring blade 9 is arranged on the rotating shaft; a water through hole is arranged on the side wall of the internal guide tube, and in this embodiment, a plurality of water through holes are arranged on the side wall of the internal guide tube.

[0022] It also includes a fixed bracket 10, which is fixedly connected to the external guide tube through a clamp. In this embodiment, the fixed bracket is a telescopic bracket. In addition, in order to improve the stability of the fixation, multiple fixed brackets can be arranged, and the legs of the multiple fixed brackets can also be staggered circumferentially.

[0023] During operation, liquid flow (influent water, reflux liquid, etc.) enters the device from the water inlet, part of the water passes through the flow channel formed by the filler interlayer and flows out from the water outlet. During the flow, part of the dissolved oxygen escapes upward, and another part of the dissolved oxygen is consumed by the biofilm on the filler interlayer; another part of the liquid flow flows through the internal guide tube 7, impacts the stirring blade 9 during the flow, and the dissolved oxygen escapes through the stirring effect, and part of the liquid flow enters the filler interlayer through the water hole of the internal guide tube 7 under the pushing effect of the stirring blade 9, and the dissolved oxygen is consumed by the biofilm; therefore, while the dissolved oxygen is greatly removed and consumed, the suspended matter in the water is also adsorbed and removed.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A liquid flow deoxygenation device, characterized in that: It comprises an external flow guide tube and an internal flow guide tube which are sleeve-assembled, a filler interlayer is arranged between the external flow guide tube and the internal flow guide tube; both ends of the external flow guide tube are arranged with end covers, one of the end covers is provided with a water inlet hole, and the other end cover is provided with a water outlet hole; a rotating shaft is arranged at the center of the external flow guide tube, the two ends of the rotating shaft are respectively rotatably assembled with the corresponding end covers, and a stirring blade is arranged on the rotating shaft; a water through hole is arranged on the side wall of the internal flow guide tube.

2. The liquid flow deoxygenation device according to claim 1, characterized in that: The external flow guide pipe, the filler interlayer and the internal flow guide pipe are connected by fixing bolts.

3. The liquid flow deoxygenation device according to claim 2, characterized in that: The rotating shaft is rotatably assembled with the end cover through a bearing.

4. The liquid flow deoxygenation device according to claim 3, characterized in that: The rotating shaft and the end cover are installed and positioned via a retaining spring.

5. The liquid flow deoxygenation device according to claim 4, characterized in that: It also includes a fixing bracket, which is fixedly connected to the external flow guide pipe through a clamp.

6. The liquid flow deoxygenation device according to claim 5, characterized in that: The fixed bracket is a telescopic bracket.

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