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Urban sewage waterpower self-cleaning method with drum grid and device thereof

A technology for urban sewage and sewage, which is used in water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc. It can solve the problems of clogging pipelines and equipment, and achieve a small footprint and a wide range of applications. , the effect of simple equipment

Inactive Publication Date: 2006-10-25
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the pipes and equipment are blocked by dirt and debris in the current application of urban sewage, the present invention provides a hydraulic self-cleaning method and device for urban sewage equipped with a roller grill

Method used

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  • Urban sewage waterpower self-cleaning method with drum grid and device thereof
  • Urban sewage waterpower self-cleaning method with drum grid and device thereof

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specific Embodiment approach 1

[0007] Specific implementation mode 1: The urban sewage hydraulic self-cleaning method of this embodiment is realized as follows: the sewage lift pump is used to suck the urban native sewage in the main sewage canal into the water supply area outside the cylinder in the sewage decontamination device, and then passes through the rotating cylinder After being filtered by the grid-shaped screen filter, it enters the water supply area in the cylinder. At this time, the sewage no longer contains large-size contaminants that would cause the sewage heat exchanger to block. The sewage circulating pump is used to lead the sewage in the water supply area in the cylinder to the water supply area. In the sewage heat exchanger, after the heat exchange, the sewage returns to the backwater area in the cylinder of the decontamination device, and when it passes through the cylindrical grid filter under pressure, it has already accumulated on the outer surface of the cylindrical grid filter. The po...

specific Embodiment approach 2

[0008] Specific implementation manner two: the following combination figure 1 This embodiment will be described in detail with FIG. 2. This embodiment consists of a sewage suction pipe 2, a sewage return pipe 3, a sewage lift pump 4 arranged on the sewage suction pipe 2, and a decontamination device 5. The suction port 6 of the sewage suction pipe 2 and the sewage return pipe 3 The backwater 7 is set in the main sewage channel 1, and the other end of the sewage suction pipe 2 and the sewage return pipe 3 is provided with a decontamination device 5, which consists of a housing 8, a cylindrical grid filter 9 and a driving circle. The cylindrical grid filter 9 is composed of a rotating transmission device 10, the housing 8 is divided into a water supply area 11 and a backwater area 12, and the cylindrical grid filter 9 divides the water supply area 11 into a cylinder water supply area 11-1 And the water supply area 11-2 outside the cylinder, the cylindrical grid filter 9 divides the ...

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Abstract

The utility model relates to an urban sewage hydraulic self-cleaning device provided with a roller grill, which relates to an improvement of a device which utilizes urban sewage to provide energy. It consists of a sewage suction pipe (2), a sewage return pipe (3), a sewage lifting pump (4) installed on the sewage suction pipe (2) and a decontamination device (5). The sewage suction pipe (2) The water suction port (6) and the return port (7) of the sewage return pipe (3) are arranged in the main sewage canal (1), and the other end of the sewage suction pipe (2) and the sewage return pipe (3) is provided with a decontamination device (5), the decontamination device (5) consists of a housing (8), a cylindrical grid filter (9) and a transmission device (10) that drives the rotation of the cylindrical grid filter (9) , the inside of the housing (8) is divided into a water supply area (11) and a return water area (12), and the cylindrical grille filter (9) divides the water supply area (11) into the inner water supply area (11-1) and The water supply area (11-2) outside the tube, the backwater area (12) is divided into the backwater area (12-1) inside the tube and the backwater area (12-2) outside the tube by the cylindrical grid filter (9) . The invention has the advantages of small occupied area, low cost, simple equipment and wide application range.

Description

Technical field: [0001] The invention relates to a method and an improvement of a device for using urban sewage to provide energy. Background technique: [0002] Urban sewage is a rare source of cold and heat for heat pump heating and air conditioning, especially in the cold northern regions. Heat pump air conditioning equipment is used to extract heat from urban sewage in winter and release heat in summer to realize heat and cold recovery, not only using renewable energy, but also avoiding the inevitable environmental pollution of using fossil fuels as heat sources. The biggest technical difficulty in using urban sewage as the cold and heat source of heat pump air-conditioning units is how to prevent sewage from polluting and blocking pipelines and heat exchange equipment. For this reason, sewage treatment is not feasible, because the minimum cost of sewage treatment is also higher than the value of extracting heat or cold from the sewage. Taking sewage into the system for filtr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/00
Inventor 孙德兴吴荣华
Owner HARBIN INST OF TECH
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