CN210171713U

CN210171713U - Spiral-flow type liquid separation device

Info

Publication number: CN210171713U
Application number: CN201920900694.2U
Authority: CN
Inventors: Tao Jiang; 蒋涛
Original assignee: Yang Xin Environmental Protection Technology (shanghai) Co Ltd
Current assignee: Yang Xin Environmental Protection Technology (shanghai) Co Ltd
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-03-24
Anticipated expiration: 2029-06-14

Abstract

The utility model provides a spiral-flow type liquid separation device, overflow portion including top-down continues in proper order, the feeding portion, straight section of thick bamboo portion, coniform portion, wherein, this coniform portion is the back taper body, this feeding portion, all be equipped with outer swirl structure and interior swirl structure in straight section of thick bamboo portion and the coniform portion, above-mentioned outer swirl structure communicates each other in order constituting outer swirl passageway, swirl passageway in above-mentioned each other intercommunication in order to constitute, the top of this outer swirl passageway and the feed inlet intercommunication of this feeding portion, swirl passageway communicates in the bottom of this coniform portion with this interior swirl passageway outside this, the top of swirl passageway and the overflow mouth intercommunication of this overflow portion in this. The cyclonic liquid separation apparatus further comprises: the discharge part is in a straight cylinder shape and is arranged below the conical part, and a discharge hole of the discharge part is communicated with the bottom of the outer vortex channel; the feed port is of the archimedes spiral type. After adopting above-mentioned technical scheme, reduced outside pressure loss, promoted the separation effect.

Description

Spiral-flow type liquid separation device

Technical Field

The utility model relates to a sewage treatment device field especially relates to a spiral-flow type liquid separation device.

Background

In the process of sewage treatment, substances such as water, silt, grease and the like in sewage need to be separated, and then different components are subjected to subsequent treatment. The traditional sewage separation mode adopts a gravity separation device, namely, the separation is realized by utilizing the gravity difference of different components in the sewage, however, the gravity separation device has the defects of large volume, difficult adjustment, inconvenient maintenance and the like. Therefore, the prior art processes often use hydrocyclone separation devices, also called hydrocyclones, which work in the principle shown in fig. 1. In fig. 1, the flow trajectory of the sewage in the hydrocyclone 100 is shown, and the sewage is first introduced into the hydrocyclone 100 through the inlet 110 at a predetermined pressure, and the inlet 110 is coiled in a horizontal plane, usually in a vortex type, to generate a rotational flow of the water. Next, an outer swirl channel 120 near the side wall and an inner swirl channel 130 near the center are provided in the hydrocyclone 100, the outer swirl channel 120 is connected to the inlet 110, and the inner swirl channel 130 is connected to the overflow 150. In order to satisfy the pressure required for the separation of the sewage, the main body of the hydrocyclone 100 is designed as a combination of a straight cylinder and an inverted cone, and the radius of motion of the sewage is gradually narrowed when the sewage flows in the outer vortex passage 120, thereby generating a centrifugal force which is gradually increased. Outer swirl passageway 120 and interior swirl passageway 130 communicate in the bottom of back taper, and sewage takes place the separation here, and heavier material can sink, from the vertical downward discharge of discharge gate 140 with outer swirl passageway 120 intercommunication, and lighter material can flow along interior swirl passageway 130 upwards owing to the effect of centrifugal force, until the overflow mouth 150 with interior swirl passageway 130 intercommunication.

The hydrocyclone 100 described above is relatively light and easy to maintain compared to conventional gravity separation devices, but suffers from the following problems:

1. the inlet flow channel of the vortex line type curved surface at the feed inlet 110 is short, the section is rapidly narrowed, large pressure loss is generated at the feed inlet 110, the flow velocity is reduced, a stable flow field cannot be formed, the discharge outlet 140 is easy to block, and the separation effect is influenced;

2. the hydrocyclone 100 is formed by splicing a plurality of components, and the joint parts of the components are easy to wear, so that leakage is caused;

3. when the hydrocyclone 100 is used, the working condition inside the hydrocyclone cannot be observed, and the maintenance is inconvenient.

Therefore, there is a need for a new cyclone-type liquid separator which can reduce the loss of external pressure, improve the separation effect, and also improve the reliability of connection of each component, while being easy to observe and maintain.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a spiral-flow type liquid separation device for sewage treatment can provide great liquid pressure, realizes the separation effect of preferred, and the reliability is high, easy to maintain simultaneously.

In order to achieve the above object, the present invention provides a cyclone liquid separator, which can provide a large liquid pressure. Wherein this liquid separation device includes the overflow portion that top-down continues in proper order, the feeding portion, straight section of thick bamboo portion, coniform portion, wherein, this coniform portion is the back taper body, this feeding portion, all be equipped with outer swirl structure and interior swirl structure in straight section of thick bamboo portion and the coniform portion, above-mentioned outer swirl structure communicates each other in order to constitute outer swirl passageway, swirl passageway in order to constitute is each other communicated to above-mentioned interior swirl structure, the top of this outer swirl passageway and the feed inlet intercommunication of this feeding portion, this outer swirl passageway and this interior swirl passageway communicate in the bottom of this coniform portion, the top of this interior swirl passageway and the overflow mouth intercommunication of this overflow portion. The cyclonic liquid separation apparatus further comprises: the discharge part is in a straight cylinder shape and is arranged below the conical part, and a discharge hole of the discharge part is communicated with the bottom of the outer vortex channel; the feed port is of the archimedes spiral type.

Preferably, the taper range of the taper part is 1: 8 to 1: 10; the proportion range of the cone height of the cone-shaped part and the length of the discharging part is 4: 1 to 5: 1.

preferably, the tapered portion is made of a transparent material.

Preferably, the tapered portion is a transparent polyurethane material; the straight tube portion is made of polyurethane material.

Preferably, the feeding part, the straight cylinder part, the conical part and the discharging part are connected by clamping.

Preferably, the ratio of the diameter of the feed inlet to the diameter of the straight cylinder part is in the range of 0.15: 1 to 0.25: 1; the proportion range of the diameter of the discharge hole to the diameter of the straight cylinder part is 0.08: 1 to 0.12: 1; the ratio range of the diameter of the overflow port to the diameter of the feed inlet is 1.2: 1 to 1.5: 1.

preferably, the overflow part is an inverted U-shaped pipe, one end of which is connected with the feeding part, and the other end of which is an overflow port.

After the technical scheme is adopted, compare with prior art, the utility model discloses a spiral-flow type liquid separation equipment has following beneficial effect:

1. external pressure loss is reduced, and the separation effect is improved;

2. transparent materials are adopted, so that observation and maintenance are facilitated;

3. each part is connected compactly, is difficult for revealing, reduces the maintenance cost.

Drawings

FIG. 1 is a schematic representation of the operating principle of a prior art hydrocyclone;

FIG. 2 is a cross-sectional view of the cyclonic liquid separation apparatus of the present invention;

fig. 3 is a top view of the feed portion of fig. 2.

Reference numerals:

100-hydrocyclone, 110-feeding inlet, 120-outer vortex channel, 130-inner vortex channel, 140-discharging outlet, 150-overflow outlet, 200-cyclone type liquid separation device, 210-overflow part, 211-overflow outlet, 220-feeding part, 221-feeding inlet, 230-straight barrel part, 240-conical part, 250-discharging part, 251-discharging outlet and 260-clamping hoop.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained without creative efforts by those skilled in the art shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In order to solve the problem of insufficient sewage separation pressure caused by large pressure loss of a hydrocyclone in the prior art, the inventor considers that on one hand, the geometric shape of a feed inlet is improved so as to reduce the pressure loss at the feed inlet; on the other hand, measures are taken at the discharge port to keep the pressure of the sewage, so that the separation effect is improved.

Based on the above invention idea, the utility model provides a spiral-flow type liquid separation device for sewage treatment, the specific structure of which is shown in detail in fig. 2 and 3. Fig. 2 is a cross-sectional view of a cyclone liquid separator 200, which comprises an overflow part 210, a feeding part 220, a straight tube part 230, a cone-shaped part 240 and a discharging part 250, which are sequentially connected from top to bottom, wherein the overflow part, the feeding part, the straight tube part 230, the cone-shaped part 240 and the discharging part 250 are connected by a clamp 260, so that leakage is not easy to occur, and maintenance cost is reduced. Wherein the feeding portion 220 comprises a feeding opening 221, the feeding opening 221 is of an archimedean spiral type, and fig. 3 shows a top view of the feeding portion 220, the spiral structure of which can be seen. Compared with the vortex type that prior art adopted, the utility model discloses an after the Archimedes spiral line type, because the runner is longer, the cross-section is shrink gradually for pressure increases gradually, and the symmetric distribution can form stable, continuous flow field, can also make liquid accelerate gradually after getting into the runner, produces higher centrifugal acceleration, obtains fine separation effect. Specifically, the polar equation of an archimedes' spiral is: r = a + b θ, wherein a and b are both real numbers; when θ =0, a is the distance from the starting point to the polar origin; b is a numerical value which is increased along with the increase of the unit angle r of the spiral line; changing the parameter a is equivalent to rotating the spiral, and the parameter b controls the distance between two adjacent curves, and a person skilled in the art can realize the design of the feed inlet according with the Archimedes spiral by combining the actual working condition according to the formula. Below the feeding portion 220 is a straight cylinder portion 230, which is a straight cylinder type and provides a buffer flow path for the flow of liquid to stabilize the flow rate. Below the straight tube part 230 is a tapered part 240, and the tapered part 240 is an inverted cone, i.e., the upper part is wide and the lower part is narrow, and the tapered sharp part faces downward, so that the rotating flow passage of the liquid is gradually narrowed, and finally, the separation is realized at the bottom of the tapered part 240. Different from the discharge hole in the prior art, the inventor designs the discharge part 250 below the conical part 240, which is a straight cylinder type, and aims to provide a certain back pressure so as to maintain a necessary pressure gradient at the discharge part, increase the retention time of liquid and further improve the separation effect. The overflow part 210 is an inverted U-shaped pipe, one end of which is connected to the feeding part 220, and the other end of which is an overflow port 211. The feeding portion 220, the straight portion 230, and the tapered portion 240 are provided therein with an outer vortex structure and an inner vortex structure (not shown in fig. 2), the outer vortex structure communicating with each other to form an outer vortex passage, and the inner vortex structure communicating with each other to form an inner vortex passage. The top of the outer swirl channel is communicated with the feed port 221 of the feed part 220, so that the liquid enters the outer swirl channel from the feed port 221; the outer vortex channel and the inner vortex channel are communicated at the bottom of the conical part 240, so that liquid can be separated, heavy liquid is discharged downwards, and light liquid overflows upwards along the inner vortex channel under the action of centrifugal force; the bottom of the outer spiral channel is communicated with a discharge hole 251 of the discharge part 250 so as to discharge heavier substances such as silt and the like; the top of the inner swirl channel communicates with the overflow port 211 of the overflow portion 210 so that the overflowing liquid is discharged through the overflow port 211.

Compared with the prior art, the liquid separation device 200 can reduce pressure loss, maintain the back pressure required by liquid separation, improve the liquid separation effect, and is convenient to install, transport and maintain due to the adoption of a modular design.

Further, in order to achieve a better liquid separation effect, the inventor finds out through multiple experiments that when the back pressure at the discharging part 250 is in the range of 13-17bar, the separation effect of sand and water is best, and the retention time of liquid can be prolonged by about 20% compared with the hydrocyclone in the prior art. To achieve the above back pressure range, the taper range of the tapered portion 240 is preferably 1: 8 to 1: 10, and the ratio of the height of the cone of the conical part 240 to the length of the discharging part 250 is preferably in the range of 4: 1 to 5: 1. in addition, the size ratio of each component of the liquid separation device 200 also affects the separation effect, and the inventor obtains the following preferable parameters according to calculation and multiple experiments: the ratio of the diameter of the feed opening 221 to the diameter of the straight cylinder portion 230 ranges from 0.15: 1 to 0.25: 1; the ratio range of the diameter of the discharge opening 251 to the diameter of the straight cylinder part 230 is 0.08: 1 to 0.12: 1; the ratio range of the diameter of the overflow port 211 to the diameter of the feed port 221 is 1.2: 1 to 1.5: 1. after the above parameters are adopted, the production capacity and the diversion force of the liquid separation device 200 reach the maximum, and the total diversion efficiency is the highest.

To solve the problem of maintenance and observation of the liquid separation apparatus 200 during operation, the cone portion 240 is preferably made of transparent polyurethane, also known as PU material, so that the operator can observe the inside of the cone portion 240 for timely maintenance in case of blockage, wear of parts or other failures. Accordingly, the straight cylinder part 230 is preferably made of a polyurethane material to improve wear resistance and corrosion resistance.

It should be noted that the embodiments of the present invention have better practicability and are not intended to limit the present invention in any way, and any person skilled in the art may change or modify the technical contents disclosed above to equivalent effective embodiments, but all the modifications or equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A spiral-flow type liquid separation device is used for sewage treatment and comprises an overflow part, a feeding part, a straight cylinder part and a conical part which are sequentially connected from top to bottom; wherein the conical part is an inverted cone; all be equipped with outer swirl structure and interior swirl structure in feeding portion, straight section of thick bamboo portion and the coniform portion, the mutual intercommunication of above-mentioned outer swirl structure is in order to constitute outer swirl passageway, and swirl structure communicates each other in order to constitute interior swirl passageway in the above-mentioned, the top of outer swirl passageway with the feed inlet intercommunication of feeding portion, outer swirl passageway with interior swirl passageway in the bottom intercommunication of coniform portion, the top of interior swirl passageway with the overflow mouth intercommunication of overflow portion, its characterized in that, spiral-flow type liquid separation equipment still includes: the discharge part is in a straight cylinder shape and is arranged below the conical part, and a discharge hole of the discharge part is communicated with the bottom of the outer vortex channel; the feed inlet is of an Archimedes spiral line type.

2. The cyclonic liquid separation apparatus of claim 1, wherein: the taper range of the taper part is 1: 8 to 1: 10; the proportion range of the cone height of the cone-shaped part and the length of the discharging part is 4: 1 to 5: 1.

3. the cyclonic liquid separation apparatus of claim 1, wherein: the conical part is made of transparent material.

4. A cyclonic liquid separation apparatus as claimed in claim 3, wherein: the conical part is made of transparent polyurethane material; the straight barrel part is made of polyurethane materials.

5. The cyclonic liquid separation apparatus of claim 1, wherein: all adopt clamp connection between feeding portion, straight section of thick bamboo portion, tapered portion and the ejection of compact portion.

6. The cyclonic liquid separation apparatus of claim 1, wherein: the proportion range of the diameter of the feed inlet to the diameter of the straight cylinder part is 0.15: 1 to 0.25: 1; the proportion range of the diameter of the discharge hole to the diameter of the straight cylinder part is 0.08: 1 to 0.12: 1; the ratio range of the diameter of the overflow port to the diameter of the feed inlet is 1.2: 1 to 1.5: 1.

7. the cyclonic liquid separation apparatus of claim 1, wherein: the overflow part is an inverted U-shaped pipe, one end of the overflow part is connected with the feeding part, and the other end of the overflow part is an overflow port.