CN210635789U

CN210635789U - Three-phase separator with asymmetric structure

Info

Publication number: CN210635789U
Application number: CN201921409779.7U
Authority: CN
Inventors: 彭继伟; 冯梅
Original assignee: Wuhan Sentai Environmental Protection Co ltd
Current assignee: Wuhan Sentai Environmental Protection Co ltd
Priority date: 2019-08-28
Filing date: 2019-08-28
Publication date: 2020-05-29
Anticipated expiration: 2029-08-28

Abstract

The utility model discloses a three-phase separator of asymmetric structure, it includes at least two-layer vertical stack's gas collection gang, and each layer gas collection gang all includes a plurality of align to grid's gas collecting channel side by side, the gas collecting channel is for forming an opening bucket structure down by two baffles, and wherein the bucket cross sectional length of a baffle is greater than the bucket cross sectional length of another baffle, and the longer baffle of gas collecting channel extends the below of the shorter baffle of adjacent gas collecting channel. By designing the gas collecting hoods with different left and right lengths, a zigzag flow guide path is realized between the gas collecting arrays vertically stacked, the precipitation separation effect is enhanced, and sludge loss caused by short flow is avoided; the height and the width dimension of the sewage treatment device are also reduced, and compared with the existing three-phase separator with the same number of gas collecting hoods, the whole volume is greatly reduced regardless of the height or the width, so that the construction cost and the occupied area of the sewage treatment device are reduced.

Description

Three-phase separator with asymmetric structure

Technical Field

The utility model relates to a sewage treatment device, concretely relates to three-phase separator of asymmetric structure.

Background

The anaerobic biological treatment technology is one of the most suitable and most economical selection schemes for medium and high concentration organic wastewater as a high-efficiency and low-consumption wastewater treatment process. The anaerobic three-phase separator is a core component of an anaerobic reactor in the sewage anaerobic treatment technology, and has the function of separating gas (methane), solid (sludge particles) and liquid in ascending mixed liquor in the anaerobic reactor, wherein the separated gas is collected by a gas collecting hood and then is led out from the top of the three-phase separator, the sludge particles automatically slide and settle to a sludge bed at the bottom of the reactor, and the liquid is discharged from a clarification area. The separation effect of the three-phase separator directly influences the treatment effect of the anaerobic reactor, so that the mud-water separation effect is an important index for evaluating the performance of the three-phase separator.

The three-phase separator in the prior art is stable in the low-load operation process, but is easy to generate the anaerobic sludge loss condition when high-concentration wastewater is treated. The main reasons are that: 1. during the rising process of the mixed liquid, the unseparated sludge is brought into a water outlet area due to short flow and overflows along with water flow, so that the sludge is lost; 2. the gas collecting effect of the gas collecting hood is poor, and gas overflows from the gas collecting hood to influence the backflow of sludge, so that the sludge floats upwards;

in order to improve the separation effect of the three-phase separator, the conventional three-phase separator is generally provided with two layers of gas collecting hoods, even a plurality of layers of gas collecting hoods, which are arranged in a vertically staggered manner, and left and right baffle plates of the gas collecting hoods are symmetrically arranged to reduce the phenomena of short flow and gas leakage, but the height and the width of a separation area are increased, the total height and the width of a tank body of the anaerobic reactor are also increased, and the integral construction cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the problem that prior art exists, provide a three-phase separator of asymmetric structure, solve current conventional three-phase separator and set up the anaerobic reactor cell body total height and the width that the gas collecting channel caused that staggers up and down usually and also increase, wholly build and establish this technical problem that increases.

In order to solve the technical problem, the utility model provides a three-phase separator of asymmetric structure, it includes at least two-layer perpendicular superimposed gas collection group and arranges, and each layer gas collection group is arranged and all is included a plurality of align to grid's gas collecting channel side by side, the gas collecting channel is for forming an opening bucket structure down by two baffles, and wherein the bucket cross sectional length of a baffle is greater than the bucket cross sectional length of another baffle, and the longer baffle of gas collecting channel extends the below of the shorter baffle of adjacent gas collecting channel.

Preferably, the gas collecting channel baffles which are adjacent up and down and adjacent left and right are arranged in a non-contact intersecting manner.

Preferably, the top end part of the lower layer gas collecting hood extends into the upper layer gas collecting hood.

Preferably, a zigzag flow guide path is formed between the lower layer gas collection group column and the upper layer gas collection group column.

Preferably, the width of the flow guide path is 150mm to 200 mm.

Preferably, the length ratio of the longer baffle to the shorter baffle of the gas collecting hood in the bucket-shaped section is 1.5: 1.

preferably, the angle of the gas collecting hood on the bucket-shaped section is 50-60 degrees.

Preferably, a settling zone is formed between adjacent gas collection banks.

The three-phase separator with the asymmetric structure not only realizes a zigzag flow guide path between gas collection arrays vertically stacked through designing gas collecting hoods with different left and right lengths, enhances the precipitation separation effect and avoids sludge loss caused by short flow; the height and the width size of sewage treatment ware have also been reduced, the utility model provides a gas collecting channel number of piles is not limited, and it compares the current three-phase separator that has equal quantity gas collecting channel, and the whole volume is from all taking place very big reduction in high still width to the construction cost and the area occupied of sewage treatment ware have been reduced.

Drawings

Fig. 1 is a schematic elevation of a three-phase separator of asymmetric construction according to the invention;

FIG. 2 is a schematic side elevation view of a three-phase separator of asymmetric construction according to the present invention;

fig. 3 is a schematic view of the top elevation of the asymmetric three-phase separator of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The utility model provides a three-phase separator of asymmetric structure, it includes at least two-layer vertical stack's gas collection gang 100, and each layer of gas collection gang 100 all includes a plurality of align to grid's gas collecting channel 1 side by side, gas collecting channel 1 is for forming an opening hopper-shaped structure down by two baffles, and wherein the hopper-shaped cross-sectional length of a baffle is greater than the hopper-shaped cross-sectional length of another baffle, and gas collecting channel 1's longer baffle extends the below of the shorter baffle of adjacent gas collecting channel 1.

By designing the gas collecting hoods 1 with different lengths on the left and right, the zigzag flow guide path 300 is realized between the gas collecting arrays 100 which are vertically overlapped, the precipitation separation effect is enhanced, and the sludge loss caused by short flow is avoided; the height and the width dimension of sewage treatment ware have also been reduced, the utility model provides a 1 number of piles of gas collecting channel is unlimited, and it compares the current three-phase separator that has equal quantity gas collecting channel 1, and the whole volume is from highly still all taking place very big reduction in the width to the building cost and the area occupied of sewage treatment ware have been reduced.

Example 1:

the anaerobic reactor tank aims to solve the technical problems that the total height and the width of the tank body of the anaerobic reactor are increased and the whole construction cost is increased due to the fact that the gas collecting hoods 1 are arranged in an up-down staggered manner in the conventional three-phase separator. Embodiment 1 of the utility model provides an asymmetric structure's three-phase separator, as shown in fig. 1 to fig. 3, it includes two-layer perpendicular superimposed gas collection group row 100, forms precipitation zone 200 between upper and lower adjacent gas collection group row 100, and each layer of gas collection group row 100 all includes a plurality of gas collecting channel 1 of align to grid, gas collecting channel 1 is the hopper-shaped structure that constitutes an opening down by two baffles, the angle of hopper-shaped structure is preferred 50 ~ 60. The length of the bucket-shaped cross section of one baffle of the gas collecting hood 1 is greater than that of the other baffle, preferably, the length ratio of the longer baffle to the shorter baffle of the gas collecting hood 1 in the bucket-shaped cross section is preferably 1.5: 1.

meanwhile, the longer baffle of the gas-collecting hood 1 extends to the lower part of the shorter baffle of the adjacent gas-collecting hood 1, as shown in fig. 1, the baffles of the gas-collecting hoods 1 adjacent up and down and adjacent left and right are arranged in a non-contact intersecting manner, so that the dimension reduction of the gas-collecting array 100 on the whole width is realized while the flow guide path 300 between the reserved gas-collecting hoods 1 and the adjacent gas-collecting hoods 1 is ensured.

The top end of the gas collecting hood 1 is provided with a gas collecting chamber 101, the gas collecting chamber 101 is provided with an opening and is communicated with the gas collecting tank, as shown in fig. 1, the top end part of the lower layer gas collecting hood 121 extends into the upper layer gas collecting hood 11, and by the design, the dimension of the gas collecting array 100 is reduced on the whole height and width, and a zigzag flow guide path 300 is formed between the lower layer gas collecting array 100 and the upper layer gas collecting array 100, so that the ascending channel of the mixed liquid in the settling zone 200 is increased, the collision probability of bubbles carried in the mixed liquid and the gas blocking baffle is increased, the settling separation effect is enhanced, and the sludge loss caused by short flow is avoided. The width of the flow guiding path 300 is preferably 150-200 mm.

In the anaerobic reactor, mixed liquid formed by water, activated sludge and methane flows from bottom to top, and when the mixed liquid passes through the three-phase separator, the mixed liquid firstly encounters the baffle plate of the lower-layer gas-collecting hood 121 and collides with the baffle plate of the lower-layer gas-collecting hood 121, gas attached to solid sludge is released, the released gas quickly rises and enters the gas collection chamber 101 at the top end of the lower-layer gas-collecting hood 12 to be collected, and the sludge is settled and falls back to the bottom of the reactor. The primarily separated mixed liquid continuously rises and enters the settling zone 200 through a flow guiding seam formed between the short baffle of the lower gas collecting hood 121 and the long baffle of the left/right adjacent lower gas collecting hood 121. Because the lifting action of the bubbles is reduced, the rising speed of the water flow entering the settling zone 200 is reduced, and the sludge particles are gradually settled under the action of gravity and return to the bottom of the reactor along the flow guide seam. Because of the asymmetric structure of the gas-collecting hoods 1, the water flow in the settling zone 200 will continue to run along the baffles of the upper gas-collecting hoods 111 until it overflows the three-phase separator along the flow-guiding seam formed between the short baffle of the upper gas-collecting hood 111 and the long baffle of the left/right adjacent upper gas-collecting hood 111. In the process, the gas is further separated and released into the gas collection chamber 101 of the upper gas collection cover 1, and the separated clean water rises along the flow guide seam of the upper gas collection cover 1 and is discharged out of the reactor.

The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The three-phase separator with the asymmetric structure is characterized by comprising at least two layers of vertically superposed gas collection arrays, wherein each layer of gas collection array comprises a plurality of gas collection hoods which are uniformly arranged side by side, each gas collection hood is of a bucket-shaped structure with a downward opening formed by two baffles, the bucket-shaped cross section length of one baffle is larger than that of the other baffle, and the longer baffle of each gas collection hood extends to the position below the shorter baffle of the adjacent gas collection hood.

2. The asymmetric three-phase separator as claimed in claim 1, wherein the adjacent gas collecting channel baffles are arranged in a non-contact intersecting manner.

3. An asymmetrically structured three-phase separator according to claim 1, wherein the top part of the lower gas-collecting channels extends into the upper gas-collecting channels.

4. The asymmetric three-phase separator as claimed in claim 1, wherein the lower gas collection array and the upper gas collection array form a tortuous flow path therebetween.

5. The asymmetrically structured three-phase separator according to claim 4, wherein the width of the flow guiding path is 150mm to 200 mm.

6. The asymmetrically structured three-phase separator according to claim 1, wherein the length ratio of the longer baffle to the shorter baffle of the gas collecting channel in the funnel-shaped cross section is 1.5: 1.

7. an asymmetrically constructed three-phase separator as claimed in claim 1, wherein the angle of the gas-collecting channel in its funnel-shaped cross-section is 50 ° to 60 °.

8. An asymmetrically constructed three-phase separator according to claim 1, wherein a settling zone is formed between adjacent gas collection columns above and below.