CN201232196Y - Deep water diffuser for riverway double layer sewage discharge - Google Patents

Abstract

The utility model relates to a deepwater river double-layer sewage drainage diffuser, comprising a main drainage pipe, a connecting pipe, an upper diffusion pipe and a lower diffusion pipe. Sewage enters into the upper diffusion pipe and the lower diffusion pipe through the connecting pipe and is drained into river through a guiding pipe connected with the sewage outlet of the diffusion pipe. In order to fully utilize the valid depth of river and increase the sewage drainage and dilution time, the deepwater diffuser is vertical to the water stream direction. A plurality of sewage outlets are arranged on the two diffusion pipes, each outlet is respectively provided with a guiding pipe, and a support rack is respectively arranged on the main drainage pipe and the two diffusion pipes.

Description

A kind of river course double-deck effluent discharge deep water diffuser

Technical field

The utility model relates to the environmental protection device of a kind of river sewage discharging, relates to specifically a kind ofly can make full use of the river course effective depth, effectively improves the initial dilution river course of sewage, discharging near region double-deck effluent discharge deep water diffuser.

Background technology

The sewage diffuser is meant along conduit axis a plurality of delivery ports is set, and sewage is discharged from dispersion under water, thereby strengthens the facility of sewage and environment water blending dilution capacity.The river sewage diffuser is based on individual layer at present, its shape has linear pattern, L type, T type, Y type or the like, the researcher is by the parameters such as arrangement, size, perforate mode and nozzle spacing, spray orifice footpath and diffuser caliber of design diffuser, to obtain sewage near region extension rate preferably, reach the effect that alleviates environment pollution.Yet, for river course with certain depth of water, the individual layer diffuser obviously can't utilize the river course effective depth improving the contact area of unit volume sewage quantity and environment water, and forms equivalence and spread in face plume source continuously, thereby can't obtain the higher blending intensity of entrainmenting; In addition, the individual layer diffuser often needs sufficiently long anemostat to satisfy its near region extension rate requirement, and this certainly will cause the contaminated zone of sewage formation broad after the diffuser discharging, its inherent limitation place just.

Summary of the invention

The purpose of this utility model is to provide a kind of river course double-deck effluent discharge deep water diffuser.For making full use of the river course effective depth, reduce the pollution of river bandwidth that single diffuser discharging forms simultaneously, the utility model provides a kind of river course double-deck effluent discharge deep water diffuser.

A kind of river course double-deck effluent discharge deep water diffuser, comprise discharge manifold (1), anemostat (2), blowdown spout (4), mozzle (5), bracing frame (6), it is characterized in that discharge manifold (1) and vertical connection of tube connector (3), upper/lower terminal at tube connector (3) connects upper and lower two anemostats (2) respectively, on upper and lower two anemostats (2), be provided with 12-20 blowdown spray spout (4), connecting mozzle (5) respectively on each blowdown spout (4), bracing frame (6) is fixedlyed connected with upper and lower two anemostats (2) with discharge manifold (1) respectively.Above-mentioned discharge manifold (1), anemostat (2) and tube connector (3) all are connected with screw thread or welding manner.Above-mentioned diffuser is made with PVC or stainless steel material.Above-mentioned mozzle (5) is connected with welding or engage thread with blowdown spout (4), and mozzle (5) becomes 10 ° of-20 ° of angles with the streamflow direction.Above-mentioned bracing frame (6) is fixed discharge manifold (1) and upper and lower two anemostats (2) by rivet.

The technical scheme that its technical problem that solves the utility model adopts is: diffuser adopts upper and lower double-deck effluent discharge, form by tube connector and upper and lower two anemostats by a discharge manifold, arrange perpendicular to the river water (flow) direction, on upper and lower two anemostats, be provided with a plurality of blowdown spouts, is furnished with mozzle on each spout, control sewage goes out the movement locus of stream, and flow angle is controlled between 10 °～20 °, to increase the initial dilution factor in sewage near region, avoid occurring the sewage roof fall simultaneously and touch end problem.

Advantage of the present utility model and good effect are: compare with traditional individual layer diffuser, the utility model can make full use of the effective depth in river course, effectively increase the contact area of unit volume sewage quantity and environment water, and the continuous face plume source of formation equivalence, that has improved sewage entrainments blending intensity, obtain higher effluent discharge extension rate, have better blending dilution effect; And, for reaching near region extension rate requirement, the required diffusion tube lengths of the utility model is about 1/2 of individual layer diffuser, therefore can greatly reduce the contaminated zone width that diffuser laterally causes in the river course, thereby reduce the contaminated zone scope effectively, alleviated effluent discharge the river course Effects of water environment.The utility model is simple in structure, easy construction, and cost is relatively low.

Description of drawings

Fig. 1 is a longitudinal plan of the present utility model.

Reference numeral, 1. discharge manifold, 2. anemostat, 3. tube connector, 4. blowdown spout, 5. mozzle, 6. bracing frame.

The specific embodiment

The utility model is made by PVC or stainless steel material.In Fig. 1, discharge manifold (1) all is connected with screw thread or welding manner with anemostat (2) with tube connector (3), tube connector (3); Anemostat (2) is gone up perforate welding mozzle (5), forms bilevel double-deck deep water diffuser.Bracing frame (6) is fixed on discharge manifold (1) and the levels anemostat (2) by rivet.Wherein, discharge manifold (1) and anemostat (2) caliber determine that according to quantity of wastewater effluent mean flow rate is controlled between 1.0～2.0m/s in the pipe; Blowdown spout (4) diameter is greater than 0.08m, and the spout spacing is no more than 1/3 of the river course depth of water, and much smaller than diffusion tube lengths; The average injection stream speed control of blowdown spout (4) is more than 2.5m/s; Mozzle (5) becomes 10 °～20 ° angles with the streamflow direction.

Embodiment: certain city Wastewater Treatment Plant quantity of wastewater effluent is 150,000 t/d, enters certain river course by the utility model.The wide 700m in this river course, city, mean depth is 15m.The utility model is made by the PVC material, and concrete size and arrangement are: discharge manifold (1) caliber 1.2m, and long 300m is weldingly connected with the tube connector (3) of same caliber; The high 2.0m of tube connector (3) by welding, links to each other with the two-layer anemostat (2) up and down of caliber 0.9m, long 50m; Anemostat (2) is gone up every mozzle (5) that becomes 15 ° of angles with the streamflow direction of 5m perforate welding; The long 0.2m of mozzle (5), caliber Φ 175mm, its end are blowdown spout (4); Bracing frame (6) is fixed on discharge manifold (1) and the levels anemostat (2) by rivet.As shown in Figure 1, sewage enters two-layer anemostat (2) up and down again by discharge manifold (1) input tube connector (3), forms jet by the blowdown spout of offering on the anemostat (4) and enters environment water, jet goes out flow path direction by mozzle (5) control, is 15 ° of angles with the streamflow direction.

Claims (5)

1. A deep-water diffuser for double-layer sewage discharge in a river, comprising a discharge main pipe (1), a diffuser pipe (2), a sewage discharge nozzle (4), a diversion pipe (5), and a support frame (6). It is characterized in that the discharge main pipe (1) It is vertically connected with the connecting pipe (3), and the upper and lower two ends of the connecting pipe (3) are respectively connected with the upper and lower diffusion pipes (2), and the upper and lower diffusion pipes (2) are provided with There are 12-20 blowdown spouts (4), and each blowdown spout (4) is respectively connected with a guide pipe (5), and the support frame (6) is respectively connected with the discharge main pipe (1) and the upper and lower two diffuser pipes ( 2) Fixed connection. 2. The diffuser according to claim 1, characterized in that the discharge main pipe (1), diffuser pipe (2) and connecting pipe (3) are all connected by thread or welding. 3. The diffuser according to claim 1, characterized in that the diffuser is made of PVC or stainless steel. 4. The diffuser according to claim 1, characterized in that the diversion pipe (5) is connected to the sewage nozzle (4) by welding or threading, and the diversion pipe (5) is at 10° to the river flow direction. °-20° included angle. 5. The diffuser according to claim 1, characterized in that the support frame (6) fixes the main discharge pipe (1) and the upper and lower diffuser pipes (2) by rivets.