CN212584035U - Intermittent air lift pump - Google Patents
Intermittent air lift pump Download PDFInfo
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- CN212584035U CN212584035U CN202021251450.5U CN202021251450U CN212584035U CN 212584035 U CN212584035 U CN 212584035U CN 202021251450 U CN202021251450 U CN 202021251450U CN 212584035 U CN212584035 U CN 212584035U
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- air bag
- sleeve
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- intermittent
- riser
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Abstract
The utility model discloses an intermittent type air stripping pump. The intermittent gas stripping pump comprises: the air conditioner comprises a lifting pipe (1), an air pipe (2), an inner air bag (5) and an outer air bag (6), wherein the lifting pipe (1) is arranged in an up-and-down opening manner; the upper end opening of the inner air bag (5) is sleeved outside the lifting pipe (1), and the lower end is in sealing fixed fit with the outer wall of the lifting pipe; the lower end opening of the outer air bag (6) is sleeved outside the inner air bag (5), the upper end of the outer air bag is in sealing and fixed fit with the outer wall of the inner air bag, the upper end of the outer air bag (6) is positioned above the upper end of the inner air bag (5), and the lower end of the outer air bag (6) is positioned above the lower end of the inner air bag (5); wherein the riser pipe (1) is provided with a vent hole (11) at a position higher than the lower end of the inner bladder (5). The utility model discloses an intermittent type air lift pump forms the buffer gas space through inside and outside gasbag each other cover to make the air lift pump can form great bubble, thereby reach the purpose that improves lifting efficiency.
Description
Technical Field
The utility model relates to an intermittent type air stripping pump.
Background
Gas stripping is a physical process, and the principle is that Henry's law density difference pressure drives material circulation. The traditional gas stripping pump is a device which utilizes gas to form steam-water mixed liquid in a lifting pipe, generates density difference with liquid outside the pipe and utilizes the pressure difference to lift substances. The prior art's air lift pump promotes through forming vapour and water mixed liquid, consequently receives a great deal of restriction, and the lifting efficiency is lower.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an intermittent type air stripping pump improves the lifting efficiency.
In order to achieve the above object, the utility model provides an intermittent air-lift pump, intermittent air-lift pump includes: a lifting pipe, a vent pipe, an inner air bag and an outer air bag,
the lifting pipe is arranged up and down, and the upper end and the lower end of the lifting pipe are open;
the inner air bag is sleeved outside the lifting pipe, the upper end of the inner air bag is opened, and the lower end of the inner air bag is in sealing fixed fit with the outer wall of the lifting pipe;
the outer air bag is sleeved outside the inner air bag, the lower end of the outer air bag is opened, the upper end of the outer air bag is in sealing and fixed fit with the outer wall of the lifting pipe, the upper end of the outer air bag is positioned above the upper end of the inner air bag, and the lower end of the outer air bag is positioned above the lower end of the inner air bag;
the breather pipe is communicated with the upper part of the outer air bag and is used for introducing pressure gas into the outer air bag and the inner air bag;
wherein the riser tube is provided with a vent hole at a position higher than the lower end of the inner bladder.
Preferably, the intermittent air-lift pump further comprises a sleeve, the sleeve is sleeved outside the outer air bag, the upper end of the sleeve is in sealed fixed fit with the outer wall of the lifting pipe, the lower end of the sleeve is closed, a mud inlet hole is formed in the lower portion of the sleeve, and the lower end of the sleeve is lower than the lower end of the lifting pipe.
Preferably, the mud inlet hole is arranged on the side wall of the sleeve close to the bottom of the sleeve, and a plurality of mud inlet holes are symmetrically arranged.
Preferably, the diameter of the mud inlet hole is in the range of 20 mm-30 mm.
Preferably, the sleeve has a height dimension in the range of 1-1.5 meters.
Preferably, the lower end opening of the riser is a trumpet-shaped feed inlet, and the trumpet-shaped feed inlet is wide at the bottom and narrow at the top.
Preferably, the angle of the trumpet-shaped feed opening is in the range of 45 ° to 60 °, and the diameter of the trumpet-shaped feed opening is equal to or slightly larger than the diameter of the outer bladder.
Preferably, the height-diameter ratio of the outer airbag is in the range of 1.7:1 to 2.3:1, the lower end opening of the outer airbag is lower than the bottom of the inner airbag, and the height difference is in the range of 100mm to 200 mm.
Preferably, the number of the vent holes on the riser is two, the vent holes are arranged in a split hole shape, and the ratio of the hole cross section area of the vent holes to the cross section area of the air inlet pipe is 2:1 to 4: 1.
Preferably, the riser is provided with a connecting flange at an upper end.
The utility model discloses an intermittent type air lift pump forms the buffer gas space through inside and outside gasbag each other cover to make the air lift pump can form great bubble, thereby reach the purpose that improves lifting efficiency.
Drawings
Fig. 1 is a schematic structural cross-sectional view of an intermittent stripping pump according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of the operation of the intermittent air-lift pump of fig. 1.
Reference numerals:
| 1 | |
12 | Horn- |
| 2 | |
13 | |
| 3 | |
14 | Connecting |
| 5 | |
31 | |
| 6 | External airbag | 51 | Upper opening of |
| 11 | |
61 | Lower opening of outer air bag |
Detailed Description
In the drawings, the same or similar reference numerals are used to denote the same or similar elements or elements having the same or similar functions. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The air lift pump has simple structure and convenient maintenance, can be assembled on site, and is only matched with mechanical operation equipment for providing equipment for an air source. Gas stripping pumps are commonly used in the field of low-lift lifting or mixed circulation of liquids, and are currently increasingly applied in the field of environmental engineering.
The utility model discloses at the inside dress gasbag device of traditional air lift pump, can store the gaseous release of certain volume through the gasbag and get into the riser, utilize the uplift of complete bubble in the riser to push away the material to the outside of tubes, and then the submerged depth of reducible air lift pump.
Through tolerance regulation, the utility model discloses an intermittent type air stripping pump can have two kinds of mode. Besides the air-water mixed liquid lifting working mode of the traditional air lift pump, a small air lift working mode is added. In the small air quantity lifting working mode, in the small air quantity (for example 0.20-1.00 m)3Min), forming large bubbles uniformly to finish intermittent and cyclic discharge of liquid; under the condition of larger gas flow, the intermittent circulating discharge of liquid-gas-liquid mixed liquid and liquid is formed. That is to say, the utility model discloses also can normally work under little gas volume mode.
The promotion discharge efficiency of liquid can be controlled through the size of the flow of gas to holistic liquid discharge efficiency improves.
As shown in fig. 1-2, an intermittent air-lift pump according to an embodiment of the present invention includes: a riser tube 1, a vent tube 2, an inner bladder 5 and an outer bladder 6.
The riser 1 is arranged up and down, and the upper end and the lower end are open. In the illustrated embodiment, the riser 1 is a round tube. The shape of the riser 1 is not limited thereto, and in alternative embodiments, the riser 1 may also be a square tube, a regular hexagonal tube, an elliptical tube, or the like. The riser 1 extends substantially through the entire batch stripper pump and is connected at one end (typically the upper end) to the atmosphere and at one end (typically the lower end) to the feed inlet and to the riser material. The riser 1 may also be provided with or connected to a horizontal pipe or the like at its upper end, see for example fig. 2.
The inner bladder 5 and the outer bladder 6 are cylindrical in shape in the example, and may be square tubes, hexagonal tubes, elliptical tubes, or the like. The inner air bag 5 is sleeved outside the lifting pipe 1, the upper end of the inner air bag is opened, and the lower end of the inner air bag is in sealing fixed fit with the outer wall of the lifting pipe 1. The inner walls of the lifting pipe 1 and the inner air bag 5 are smooth and have no burrs.
The outer air bag 6 is sleeved outside the inner air bag 5, the lower end of the outer air bag is opened, the upper end of the outer air bag 6 is in sealing and fixed fit with the outer wall of the lifting pipe 1, the upper end of the outer air bag 6 is located above the upper end of the inner air bag 5, and the lower end of the outer air bag 6 is located above the lower end of the inner air bag 5.
The inner and outer air bags are not limited in material, do not need to be elastic, and are generally rigid materials as long as the requirements of the underwater pressure level and the functional requirements of equipment are met. The bladder may be of various materials such as carbon steel, stainless steel, plastic, etc.
The height-diameter ratio of the outer air bag 6 is in the range of 1.7:1 to 2.3:1, the lower end opening of the outer air bag 6 is lower than the bottom of the inner air bag 5, and the height difference is in the range of 100mm to 200 mm. For example, the outer bladder has a height to diameter ratio of about 2:1, which better accommodates the length and resistance of the mixture lift. The breather pipe 2 is communicated with the upper part of the outer airbag 6 and is used for introducing pressure gas into the outer airbag 6 and the inner airbag 5. That is, the inner air bag is opened at the upper end and sealed at the lower end; the lower opening of the outer air sac, and the upper end of the outer air sac is only connected with the inflation tube. The inner airbag 5 and the outer airbag 6 are both connected and fixed with the lifting pipe 1.
The lifting pipe 1 is provided with a vent hole 11 at a position higher than the lower end of the inner bladder 5.
In an alternative embodiment, the vent 11 opens at a tangent (i.e., at an abutment) of the riser tube 1 and the inner bladder 5. Under the normal non-inflation condition, the inner and outer air bags are filled with media, air is sent into the air bags from the vent pipe under pressure to discharge the media to the lifting pipe, and in order to avoid partial media remaining in the air bags, the vent hole is opened at the tangent position of the lifting pipe and the inner air bag. The two ends of the vent hole 11 are respectively communicated with the lifting pipe 1 and the inner air bag 5.
As shown in fig. 2, the operation of the present invention in a liquid mixture is as follows.
Air enters the outer air bag 6 from the vent pipe 2 through the pressurization of the blower or the air compressor, and the mixture in the inner air bag and the outer air bag is respectively pushed out of the pump body and into the lifting pipe 1 along with the increase of the air pressure. When the air input is increased to occupy the whole inner air bag 5, the liquid level of the mixture is lowered to the vent hole, air enters the riser from the vent hole, and a relatively large air bubble is gradually formed in the vent hole 11 in a state that countless small air bubbles are scattered until the air bubble cuts the mixture in the riser 1 into two sections. Because the bubble is constantly increased, the pressure difference can move upwards along the inner wall of the lifting pipe 1 until the liquid above the lifting pipe is pushed out of the pipe, an instant liquid level difference can occur in the lifting pipe 1, and the material at the bottom can be pressurized to the inside of the sleeve 3 until the inside of the lifting pipe 1 by the atmospheric pressure, so that the material is intermittently and circularly pumped and discharged.
The inner air bag and the outer air bag are mutually sleeved to form a buffer air space, so that the air stripping pump can form larger bubbles, and the aim of improving the discharge efficiency is fulfilled. The utility model discloses an intermittent type air lift pump utilizes the gasbag can trun into the big bubble with excessive scattered small bubble, and the mixture promotes the mode and becomes the mixed liquid pressure difference mode drive of bubble by the mixed liquid density difference drive of air water, and the emission and the promotion height of actual mixture are with greatly increased.
The utility model discloses on simple structure, the convenient basis of maintaining, solve the problem that the air lift pump flooding rate is big, the air output is big, the lifting efficiency is low, the feeding blocks up.
As shown in the figure, the intermittent air stripping pump further comprises a sleeve 3, the sleeve 3 is sleeved outside the outer airbag 6, the upper end of the sleeve 3 is in sealed fixed fit with the outer wall of the lifting pipe 1, the lower end of the sleeve 3 is closed, a mud inlet hole 31 is formed in the lower portion of the sleeve 3, and the lower end of the sleeve 3 is lower than the lower end of the lifting pipe 1. Because the intermittent air-lift pump of the utility model is provided with the sleeve 7, 1) the positioning and the installation of the intermittent air-lift pump can be realized; 2) and (4) efficiently collecting the sludge.
In an alternative embodiment, the mud inlet holes 31 are arranged on the side wall of the sleeve 3 near the bottom of the sleeve 3, and are symmetrically arranged in a plurality (for example, two). The mud inlet hole is arranged on the sleeve, the flow rate of the hole opening is controlled to be 0.1-0.2m/s, and the number of the open holes is confirmed according to the flow of discharged substances.
The diameter of the mud inlet hole 31 can be set according to requirements, and is set in the range of 20 mm-30 mm, for example.
Preferably, the height dimension of the sleeve 3 is in the range of 1-1.5 meters.
As shown in the figure, the lower end opening of the riser 1 is a trumpet-shaped feed inlet 12, and the trumpet-shaped feed inlet 12 is wide at the bottom and narrow at the top. The feed inlet takes the shape of a horn mouth, and the phenomenon of blockage can not occur when mixed liquid is extracted. The horn mouth angle matches with the opening size of outer gasbag, has effectively obstructed the jam of impurity to the gasbag.
The angle of the trumpet feed opening 12 may be set as required, for example, the angle of the trumpet feed opening 12 is in the range of 45 ° to 60 °, and the diameter of the trumpet feed opening 12 is equal to or slightly larger than the diameter of the outer bladder 6. The angle here refers to a one-sided angle. When the mixture contains impurities with larger sizes, the impurities can be effectively blocked by the trumpet-shaped feed port 11 and slide off along the wall, and cannot enter the outer air bag to influence the air stripping performance.
In the illustrated embodiment, the number of the vent holes 11 on the riser 1 is two, and the vent holes are arranged in a half-hole shape, and the ratio of the hole cross-sectional area of the vent holes 11 to the cross-sectional area of the air inlet pipe is 2:1 to 4: 1. The vent holes are matched with the pipe diameters of the air inlet pipes, and are usually two on the left and right, 1) large bubbles capable of intercepting water columns or liquid columns are formed as soon as possible; 2) prevent the vent hole from being blocked.
Preferably, the riser 1 is provided at the upper end with a connecting flange 14. For connection to a drain or the like. In addition, can be furnished with devices such as guide pulley for carry out lift adjustment, make things convenient for maintenance on water to change.
The utility model discloses an intermittent type air lift pump forms the buffer gas space through inside and outside gasbag each other cover to make the air lift pump can form great bubble, thereby reach the purpose that improves lifting efficiency.
The utility model discloses an intermittent type air stripping pump starts for the first time, and after first big bubble of discharge and mixture, can form the liquid level difference in riser 1, atmospheric pressure is instantaneous presses bottom mixture to loudspeaker form feed inlet 12 department by advancing mud hole 31, then is promoted to the operation liquid level. Because the air source is supplied continuously, most of the inner space of the inner air sac 5 and the inner space of the outer air sac 6 are still occupied by air, and in a short time, the air is discharged into the lifting pipe 1 again through the vent holes 11 to complete the pumping and discharging of the second mixture. In this period of time, the minimum part of impurity in the mixture can be because gravity fall out the feed inlet, nevertheless because the bubble rise with the utility model discloses a structural feature, material impurity loss rate is low, and material lifting efficiency is higher.
Compared with the traditional air lifting device, the intermittent air lifting pump has the advantages that the required inflation quantity is small, the air quantity of the air bag is used for buffering, the utilization rate of air is high, the energy consumption is low, and the energy is saved when the large flow is increased.
The intermittent air stripping pump maintains the advantages of simple structure, easy operation and the like of the traditional air stripping device, overcomes the harsh requirement on the submerging depth, and has stable and reliable operation and liftable maintenance.
The utility model discloses an embodiment is at air capacity 0.25m3Min, the air pressure is 60m water column, the submerging rate is 0.5, and the lifting water amount is 1.20L/min; at a ventilation rate of 0.50m3The water lifting amount is 0.36L/min when the air pressure is 60m water column and the submergence rate is 0.3.
The utility model discloses can regard as the component of other equipment for the promotion or the pump drainage of mixture.
The arrangement of the vent holes is in a split hole shape, the cross section area of the vent holes and the cross section area of the air inlet pipe are about 2-4 times, and under the design parameters, the size of the overflowing bubbles is appropriate, the loss rate is low, and the large bubbles can be quickly formed.
The traditional gas stripping relies on that the density of gas-liquid mixed liquid is less than that of liquid mixed liquid, when the aeration quantity is small, the density difference is not enough to form, and the liquid cannot be discharged. The lifting height is slightly less than the submerging depth, the submerging rate is 60 percent, the gas stripping pump can play a role, and the application occasion is limited. Here, the elevation height refers to the vertical distance that the medium is discharged from the liquid level to the desired height. The depth of submersion refers to the vertical height of the lower edge of the device from the level of the medium. The flooding rate refers to the inverse of the value at the sum of the flooding depth and the lifting height in terms of the flooding depth.
Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it. Those of ordinary skill in the art will understand that: modifications can be made to the technical solutions described in the foregoing embodiments, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. An intermittent gas-stripping pump, comprising: a lifting pipe (1), a vent pipe (2), an inner air bag (5) and an outer air bag (6),
the lifting pipe (1) is arranged up and down, and the upper end and the lower end of the lifting pipe are open;
the inner air bag (5) is sleeved outside the lifting pipe (1), the upper end of the inner air bag is open, and the lower end of the inner air bag is in sealing fixed fit with the outer wall of the lifting pipe (1);
the outer air bag (6) is sleeved outside the inner air bag (5), the lower end of the outer air bag is opened, the upper end of the outer air bag is in sealing and fixed fit with the outer wall of the lifting pipe (1), the upper end of the outer air bag (6) is positioned above the upper end of the inner air bag (5), and the lower end of the outer air bag (6) is positioned above the lower end of the inner air bag (5);
the breather pipe (2) is communicated with the upper part of the outer airbag (6) and is used for introducing pressure gas into the outer airbag (6) and the inner airbag (5);
wherein the riser pipe (1) is provided with a vent hole (11) at a position higher than the lower end of the inner bladder (5).
2. The intermittent gas stripping pump as claimed in claim 1, characterized in that the intermittent gas stripping pump further comprises a sleeve (3), the sleeve (3) is sleeved outside the outer air bag (6), the upper end of the sleeve (3) is in sealing fixed fit with the outer wall of the riser (1), the lower end of the sleeve (3) is closed, and a mud inlet hole (31) is arranged at the lower part of the sleeve (3), wherein the lower end of the sleeve (3) is lower than the lower end of the riser (1).
3. An intermittent air-lift pump according to claim 2, characterized in that the sludge inlet holes (31) are arranged in the side wall of the sleeve (3) adjacent to the bottom of the sleeve (3) and symmetrically arranged in number.
4. A batch stripping pump according to claim 3, characterized in that the diameter of the sludge inlet opening (31) is in the range of 20mm to 30 mm.
5. A batch stripping pump according to claim 2, characterized in that the sleeve (3) has a height dimension in the range of 1-1.5 meters.
6. An intermittent gas-stripping pump as claimed in claim 1, characterized in that the lower end of the riser (1) opens into a trumpet-shaped feed opening (12), the trumpet-shaped feed opening (12) being wider at the bottom and narrower at the top.
7. An intermittent air-lift pump according to claim 6, characterized in that the angle of the trumpet shaped feed opening (12) is in the range of 45 ° to 60 °, the trumpet diameter of the trumpet shaped feed opening (12) being equal to or slightly larger than the diameter of the outer bladder (6).
8. An intermittent air-lift pump according to claim 1, characterized in that the height-to-diameter ratio of the outer bladder (6) is in the range of 1.7:1 to 2.3:1, the lower end opening of the outer bladder (6) is lower than the bottom of the inner bladder (5), and the height difference is in the range of 100mm to 200 mm.
9. An intermittent gas-stripping pump as claimed in claim 1, characterized in that the number of the ventilation holes (11) in the riser (1) is two and is arranged in a split-hole like manner, the ratio of the cross-sectional area of the holes (11) to the cross-sectional area of the gas inlet pipe being 2:1 to 4: 1.
10. An intermittent gas-stripping pump as claimed in claim 1, characterized in that the riser (1) is provided at the upper end with a connecting flange (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021251450.5U CN212584035U (en) | 2020-06-30 | 2020-06-30 | Intermittent air lift pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021251450.5U CN212584035U (en) | 2020-06-30 | 2020-06-30 | Intermittent air lift pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212584035U true CN212584035U (en) | 2021-02-23 |
Family
ID=74654020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021251450.5U Active CN212584035U (en) | 2020-06-30 | 2020-06-30 | Intermittent air lift pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212584035U (en) |
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2020
- 2020-06-30 CN CN202021251450.5U patent/CN212584035U/en active Active
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