Circulating water inlet device for up-flow anaerobic reactor

Abstract

The utility model discloses a circulating water inlet device for an up-flow anaerobic reactor, which belongs to the technical field of sewage treatment and particularly comprises a reactor body, and a water distributor is fixedly arranged at the bottom in the reactor body; the water supply mechanism comprises a water inlet lifting pump and an adjusting tank, and the circulating mechanism comprises a circulating water pump; according to the utility model, the reactor body can be stirred by virtue of ascending water flow formed during operation of equipment and ascending air flow generated by biogas, so that pollutants in the reactor body are in full contact with anaerobic activated sludge, the pollutants are further fully degraded, the optimal anaerobic reaction effect is achieved, and the sewage treatment efficiency is improved. And when the pipeline of the water distributor is blocked due to emergency situations, the pipeline of the water distributor is dredged by virtue of large impact force generated by large flow and high lift of the circulating water pump, so that the problems that the traditional upflow anaerobic reactor is non-uniform in water distribution, low in flow velocity of the water outlet holes, easy to block the water distribution pipeline and the like are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, and in particular relates to a circulating water inlet device for an upflow anaerobic reactor. Background Art

[0002] Since the 11th Five-Year Plan, my country has vigorously promoted energy conservation and emission reduction, developed a circular economy, and built a resource-saving and environmentally friendly society, creating huge demand for the development of energy-saving and environmental protection industries. In the field of sewage treatment, especially industrial wastewater treatment, the market demand for treatment processes that are simple to operate and easy to maintain is becoming more and more widespread. Some equipment and processes that are cumbersome to operate and maintain and have a high failure rate in operation are increasingly criticized in the industry.

[0003] In anaerobic reactors with particularly low inlet hydraulic loads, it is common to encounter problems such as uneven distribution of the inlet distribution pipes across the entire reactor bottom, low flow rates at the water distribution holes, and too low rising inlet flow rates, which result in insufficient contact between pollutants in the reactor and the anaerobic sludge. This leads to poor performance of the entire anaerobic unit, excessive load on subsequent treatment units, substandard operation of the entire sewage treatment system, and pollution to the external environment. At the same time, when the sludge in the reactor is not discharged in a timely manner, the reactor is shut down for a long time, or other emergencies occur, blockage of the water distribution pipes is very common and very troublesome to clear.

[0004] Therefore, it is necessary to propose a circulating water inlet device for an upflow anaerobic reactor to solve the problems of poor operating performance and high operating failure rate of the upflow anaerobic reactor caused by uneven water distribution and insufficient flow rate of the water distribution holes. Utility Model Content

[0005] To solve the problems raised in the above background technology, the utility model provides a circulating water inlet device for an upflow anaerobic reactor, which solves the problems of uneven water distribution, low water outlet flow rate, and easy blockage of water distribution pipes in traditional upflow anaerobic reactors.

[0006] To achieve the above object, the present invention provides the following technical solution: a circulating water inlet device for an upflow anaerobic reactor, comprising a reactor body, a water distributor fixedly provided at the bottom of the reactor body, and a circulating water receiving pipe provided on one side of the upper portion of the reactor body;

[0007] It also includes a water supply mechanism, which includes a water inlet lift pump and a regulating tank, the water inlet pipe of the water inlet lift pump extends into the regulating tank, and the water outlet pipe of the water inlet lift pump is connected to the water inlet pipe of the water distributor;

[0008] It also includes a circulation mechanism, which includes a circulating water pump. The water inlet pipe of the circulating water pump is connected to a circulating water receiving pipe, and the circulating water receiving pipe extends into the reactor body and is located above the water distributor. The water outlet pipe of the circulating water pump is connected to a circulating water outlet pipe, and the water outlet end of the circulating water outlet pipe is connected to the water inlet end of the water distributor.

[0009] Preferably, the water distributor includes a main water distribution pipe and several auxiliary water distribution pipes, the main water distribution pipe is provided with branch pipes corresponding to the several auxiliary water distribution pipes, the several branch pipes are connected with the several auxiliary water distribution pipes, and the auxiliary water distribution pipes are provided with water distribution outlets.

[0010] Preferably, the main water distribution pipeline is arranged in a linear structure, and the auxiliary water distribution pipeline is arranged in an annular structure.

[0011] Preferably, the main water distribution pipe is suspended on the top of the reactor through a support frame, and the plurality of auxiliary water distribution pipes are fixedly connected to the support frame and arranged around the main water distribution pipe.

[0012] Preferably, the water spraying direction of the water distribution port is set toward the bottom of the reactor body.

[0013] Preferably, the water inlet end of the water distributor, the water outlet pipe of the water inlet lift pump and the water outlet pipe of the circulating water pump are connected through a three-way valve.

[0014] Preferably, a flow meter is connected to the water outlet pipe of the water inlet lift pump.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model can rely on the rising water flow formed when the equipment is running and the rising air flow generated by the biogas to stir the reactor body, so that the pollutants in the reactor body are fully in contact with the anaerobic activated sludge, and then the pollutants are fully degraded, and the anaerobic reaction produces the best effect. In addition, when an emergency situation causes the pipe of the water distributor to be blocked, the large impact force generated by the large flow and high head of the circulating water pump is relied on to dredge the pipe of the water distributor, thereby solving the problems of uneven water distribution, low flow rate of the water outlet, and easy blockage of the water distribution pipe in the traditional upflow anaerobic reactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the top view of the structure of the utility model;

[0020] In the figure: 1. Reactor body; 2. Water distributor; 21. Main water distribution pipe; 22. Auxiliary water distribution pipe; 3. Water inlet lift pump; 4. Equalization tank; 5. Circulating water pump; 6. Circulating water collection pipe; 7. Circulating water outlet pipe; 8. Flow meter. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0022] See also Figure 1-2 , this embodiment provides the following technical solutions: a circulating water inlet device for an upflow anaerobic reactor, comprising a reactor body 1, a water distributor 2 is fixedly provided at the bottom of the reactor body 1, and a circulating water receiving pipe 6 is provided on one side of the upper part of the reactor body 1; it also includes a water supply mechanism, the water supply mechanism includes a water inlet lift pump 3 and a regulating tank 4, the water inlet pipe of the water inlet lift pump 3 extends into the regulating tank 4, and the water outlet pipe of the water inlet lift pump 3 is connected to the water inlet pipe of the water distributor 2; it also includes a circulation mechanism, the circulation mechanism includes a circulating water pump 5, the water inlet pipe of the circulating water pump 5 is connected to the circulating water receiving pipe 6, the circulating water receiving pipe 6 extends into the reactor body 1 and is located above the water distributor 2, the water outlet pipe of the circulating water pump 5 is connected to the circulating water outlet pipe 7, and the water outlet end of the circulating water outlet pipe 7 is connected to the water inlet end of the water distributor 2.

[0023] By means of the water supply mechanism and the circulation mechanism, the rising water flow formed when the equipment is in operation and the rising air flow generated by the biogas can be relied upon to stir the reactor body 1, so that the pollutants in the reactor body 1 are fully in contact with the anaerobic activated sludge, thereby fully degrading the pollutants and achieving the best anaerobic reaction effect. In addition, when an emergency situation causes the pipe of the water distributor 2 to be blocked, the large impact force generated by the large flow and high head of the circulating water pump 5 can be relied upon to clear the pipe of the water distributor 2, thereby solving the problems of uneven water distribution, low flow rate of the water outlet, and easy blockage of the water distribution pipe in the traditional upflow anaerobic reactor.

[0024] The water inlet end of the water distributor 2, the water outlet pipe of the water inlet lifting pump 3 and the water outlet pipe of the circulating water pump 5 are connected by a three-way valve. By adopting the three-way valve connection method, the traditional independent setting method is replaced, thereby increasing the water outlet flow rate of the water distributor 2 and improving the rising flow rate of the water inlet in the entire anaerobic generator, thereby increasing its operating effect.

[0025] The water distributor 2 includes a main water distribution pipe 21 and several auxiliary water distribution pipes 22. The main water distribution pipe 21 is provided with branch pipes corresponding to the several auxiliary water distribution pipes 22. The several branch pipes are connected to the several auxiliary water distribution pipes 22. The auxiliary water distribution pipes 22 are provided with water distribution ports. In some embodiments, the main water distribution pipe 21 is arranged in a linear structure, the auxiliary water distribution pipe 22 is arranged in an annular structure, and the water spraying direction of the water distribution port is arranged toward the bottom of the reactor body 1. By setting the main water distribution pipe 21 and the auxiliary water distribution pipe 22, it can be better set according to the water distribution area in the reactor body 1, thereby improving the effect of the anaerobic reaction.

[0026] The main water distribution pipe 21 is suspended on the top of the reactor through a support frame, and several auxiliary water distribution pipes 22 are fixedly connected to the support frame and arranged around the main water distribution pipe 21. In some embodiments, the layout of the several auxiliary water distribution pipes 22 can be determined according to the water distribution area in the reactor body 1 and the flow rate of the water inlet lift pump 3, which is beneficial to further improve the water distribution effect of the water distributor 2, thereby improving the effect of the anaerobic reaction.

[0027] In some embodiments, the opening size of the water distribution outlet on the auxiliary water distribution pipe 22 can be set according to the flow rate of the water inlet boost pump 3 and the circulating water pump 5, thereby further improving the water distribution effect of the water distributor 2 and increasing the water outlet flow rate of the water distribution outlet.

[0028] The outlet pipe of the water inlet lift pump 3 is connected with a flow meter 8.

[0029] The working principle of the utility model is as follows: when the reactor body 1 is in operation, the water inlet lift pump 3 and the circulating water pump 5 are turned on at the same time, which can maintain the flow rate required by the water outlet, and the rising water flow formed and the rising air flow generated by the biogas have a stirring effect on the reactor body 1, so that the pollutants in the reactor body 1 are fully contacted with the anaerobic activated sludge, thereby fully degrading the pollutants and achieving the best effect of the anaerobic reaction;

[0030] When an emergency occurs and the pipe of the water distributor 2 is blocked, the pipe is unblocked by relying on the large flow and high lift of the circulating water pump 5 to generate a large impact force, which mainly solves the problems of uneven water distribution, low flow rate of the water outlet, and easy blockage of the water distribution pipe in the traditional upflow anaerobic reactor.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A circulating water inlet device for an upflow anaerobic reactor, characterized in that: It comprises a reactor body (1), wherein a water distributor (2) is fixedly arranged at the bottom of the reactor body (1); It also includes a water supply mechanism, the water supply mechanism including a water inlet lift pump (3) and a regulating tank (4), the water inlet pipe of the water inlet lift pump (3) extending into the interior of the regulating tank (4), and the water outlet pipe of the water inlet lift pump (3) communicating with the water inlet pipe of the water distributor (2); The reactor further comprises a circulation mechanism, wherein the circulation mechanism comprises a circulating water pump (5), a water inlet pipe of the circulating water pump (5) is connected to a circulating water receiving pipe (6), the circulating water receiving pipe (6) extends into the reactor body (1) and is located above the water distributor (2), the water outlet pipe of the circulating water pump (5) is connected to a circulating water outlet pipe (7), and the water outlet end of the circulating water outlet pipe (7) is in communication with the water inlet end of the water distributor (2).

2. A circulating water inlet device for an upflow anaerobic reactor according to claim 1, characterized in that: The water distributor (2) comprises a main water distribution pipe (21) and a plurality of auxiliary water distribution pipes (22); the main water distribution pipe (21) is provided with branch pipes corresponding to the plurality of auxiliary water distribution pipes (22); the plurality of branch pipes are in communication with the plurality of auxiliary water distribution pipes (22); and the auxiliary water distribution pipes (22) are provided with water distribution ports.

3. A circulating water inlet device for an upflow anaerobic reactor according to claim 2, characterized in that: The main water distribution pipe (21) is arranged in a linear structure, and the auxiliary water distribution pipe (22) is arranged in a ring structure.

4. A circulating water inlet device for an upflow anaerobic reactor according to claim 3, characterized in that: The main water distribution pipe (21) is suspended on the top of the reactor through a support frame, and the plurality of auxiliary water distribution pipes (22) are fixedly connected to the support frame and arranged around the main water distribution pipe (21).

5. The circulating water inlet device for an upflow anaerobic reactor according to claim 2, characterized in that: The water distribution port is arranged to spray water in a direction toward the bottom of the reactor body (1).

6. The circulating water inlet device for an upflow anaerobic reactor according to claim 1, characterized in that: The water inlet end of the water distributor (2), the water outlet pipe of the water inlet lift pump (3), and the water outlet pipe of the circulating water pump (5) are connected via a three-way valve.

7. A circulating water inlet device for an upflow anaerobic reactor according to any one of claims 1 to 6, characterized in that: A flow meter (8) is connected to the water outlet pipe of the water inlet lift pump (3).

Images