CN113027828A - Impeller-free high-suction-lift gas-liquid lift pump - Google Patents
Impeller-free high-suction-lift gas-liquid lift pump Download PDFInfo
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- CN113027828A CN113027828A CN202110435875.4A CN202110435875A CN113027828A CN 113027828 A CN113027828 A CN 113027828A CN 202110435875 A CN202110435875 A CN 202110435875A CN 113027828 A CN113027828 A CN 113027828A
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- lift
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- 239000007788 liquid Substances 0.000 title claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 50
- 239000012530 fluid Substances 0.000 claims abstract description 27
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 239000007791 liquid phase Substances 0.000 claims abstract description 7
- 238000012544 monitoring process Methods 0.000 claims description 4
- 239000010808 liquid waste Substances 0.000 abstract description 7
- 239000010865 sewage Substances 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000010802 sludge Substances 0.000 abstract description 3
- 238000011161 development Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000036186 satiety Effects 0.000 description 1
- 235000019627 satiety Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009270 solid waste treatment Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F1/00—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a vane-free high-suction-lift gas-liquid lift pump, which comprises a main lifting pipeline, an air inlet pipe, an air compressor and a PID control system, wherein the main lifting pipeline is connected with the air inlet pipe; the main lifting pipe comprises a pipeline liquid phase area, a gas-liquid accelerating area, a material lifting area and a material slow lifting area from bottom to top, and the diameter of the material slow lifting area is larger than that of the material lifting area; the PID control system comprises a PID controller, a sensor, a detection element, a fluid flow meter and a one-way valve, wherein the sensor is arranged at the bottom outlet of the main lifting pipe, the fluid flow meter is arranged on the air inlet pipe, the one-way valve is arranged at the joint of the air inlet pipe and the air compressor, the sensor and the fluid flow meter are respectively electrically connected with the detection element, and the PID controller is respectively electrically connected with the detection element and the one-way valve. The invention can effectively promote the solid-liquid waste deposited in sewage tanks, river channels, sludge tanks and industrial plants, and has the characteristics of low energy consumption, high treatment efficiency and continuous work.
Description
Technical Field
The invention belongs to the technical field of solid-liquid waste lifting and conveying equipment, and particularly relates to a vane-free high-suction-range gas-liquid lifting pump.
Background
In a new era of 'intelligent cloud movement', advanced technology is continuously developed, and the life of people is continuously enriched with the assistance of scientific technology. On the basis of pursuing satiety, more people put attention to the quality of life, wherein the quality of living environment is the front one. At present, the development concept of China also brings environmental protection into the environment, and the development concept of innovation, coordination, greenness, development and sharing is adhered to, and the environmental protection is tried to be realized in the development process. However, as the development progresses, a part of environmental waste such as waste liquid and waste materials of industrial plants, sewage and sludge of ponds and rivers and the like is inevitably generated. The treatment of solid-liquid waste is a major focus of society, and many researchers have made researches on the current situation and have made extensive tree building. While the solid waste treatment research is continuously advanced, a development space is provided for the research of solid waste lifting and conveying equipment.
The lift delivery device used primarily in the market is a lift pump. The lift pump is widely applied to chemical industry, petroleum, pharmacy, mining, paper industry, cement plant, steel plant, power plant, coal processing industry, and the industries of conveying sewage and dirt with particles in the drainage system of municipal sewage treatment plants, municipal engineering, construction sites and the like, and can also be used for pumping clean water and corrosive media. The lift pump in the traditional sense often uses impeller lift, and its theory of operation is: the liquid is filled in the tube and the pump, and after the pump is started, the liquid rotates along with the impeller through high-speed rotation. Under the action of centrifugal force, the liquid is discharged outwards after leaving the impeller, and the speed of the ejected liquid in the pump shell dispersion chamber is gradually reduced, and then the ejected liquid flows out from the pump outlet and the discharge pipe. Then the liquid is sucked again under the action of the atmospheric pressure, thereby realizing the continuous operation of the pump. However, there are several disadvantages based on this function: 1. the solid waste is easy to collide with the impeller blades in the lifting process, so that the service life of the impeller is shortened; 2. when the liquid with higher concentration is promoted, the problems of impeller blockage and the like are easily caused; 3. continuous operation has great abrasion to the impeller, needs to be replaced and cleaned in time, and is not favorable for disassembly and cleaning in the pump body. 4. The rotational speed of impeller is closely relevant with the lift, and under the certain circumstances of rotational speed, the lift of equipment is restricted to liquid is stagnant because of the friction deceleration easily at the in-process of upwards carrying, is unfavorable for reaching the requirement of high lift.
Disclosure of Invention
The technical problem to be solved is as follows: aiming at the technical problems, the invention provides the impeller-free high-suction-range gas-liquid lift pump which can effectively lift and treat solid-liquid wastes deposited in sewage pools, riverways, sludge pools and industrial plants and has the advantages of low energy consumption, high treatment efficiency and continuous work.
The technical scheme is as follows: a non-impeller high-suction-lift gas-liquid lift pump comprises a main lifting pipeline, an air inlet pipe, an air compressor and a PID control system; the main lifting pipe comprises a pipeline liquid phase area, a gas-liquid accelerating area, a material lifting area and a material slow lifting area from bottom to top, the diameter of the material slow lifting area is larger than that of the material lifting area, and the gas-liquid accelerating area of the main lifting pipe is connected with the air compressor through an air inlet pipe; the PID control system comprises a PID controller, a sensor, a detection element, a fluid flow meter and a one-way valve, wherein the sensor is arranged at the outlet of the bottom of the main lifting pipe and used for measuring the fluid flow, the fluid flow meter is arranged on an air inlet pipe and used for detecting the flow of air inlet flow, the one-way valve is arranged at the joint of the air inlet pipe and the air compressor and used for controlling the air inlet flow to flow into the air inlet pipe in a one-way mode through the air compressor, the sensor and the fluid flow meter are respectively electrically connected with the detection element, and the PID controller is respectively electrically connected with the detection element and the one-way valve and used for monitoring and controlling.
Preferably, the gas-liquid lift pump further comprises a storage device and an overflow valve, and the storage device and the overflow valve are arranged on the gas inlet pipe.
Preferably, the gas-liquid lift pump further comprises a material collecting pipe, the material collecting pipe is sleeved on the outer side of the top of the main lift pipe, and the top end of the material collecting pipe is higher than the top end of the main lift pipe.
Furthermore, a material outlet is formed in the bottom of the material collecting pipe, and an included angle between the material outlet and the vertical direction is an obtuse angle.
Preferably, the diameter of the end part of the air inlet pipe connected with the main riser pipe is gradually increased and is trumpet-shaped.
Has the advantages that: in the invention, the purpose of increasing the solid-liquid waste is achieved by regulating the pressure inside and outside the pipe through the additional air flow, and a series of problems of impeller blockage, difficult replacement and cleaning and the like are fundamentally eliminated by adopting the impeller-free design. Meanwhile, the invention can adjust the flow of the added gas according to the industrial parameter requirements on site, thereby meeting the requirement of high lift. In addition, the design of reducing can slow down the speed impact that great pressure differential brought to do benefit to the collection and the recovery that promote the thing more.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
the numerical designations in the drawings represent the following: 1. the device comprises a main lifting pipe, a gas inlet pipe 2, a material collecting pipe 3, an air compressor 4, a PID control system 5, a storage 6, an overflow valve 7, a pipeline liquid phase region 11, a gas-liquid accelerating region 12, a material lifting region 13, a material slow lifting region 14, a sensor 51, a detection element 52, an 53.PID controller, a fluid flowmeter 54, a one-way valve 55.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention under certain conditions, and do not represent all the embodiments. All other examples, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example 1
As shown in fig. 1, the impeller-free high suction lift gas-liquid lift pump comprises a main lift pipeline 1, an air inlet pipe 2, an air compressor 4 and a PID control system 5. The main lifting pipe 1 is inserted into a pool containing solid-liquid waste and comprises a pipeline liquid phase area 11, a gas-liquid accelerating area 12, a material lifting area 13 and a material slow lifting area 14 from bottom to top, the diameter of the material slow lifting area 14 is larger than that of the material lifting area 13, and one side of the bottom of the gas-liquid accelerating area 12 is connected with an air compressor 4 outside the pool through an air inlet pipe 2. The PID control system 5 includes a PID controller 51, a sensor 52, a detection element 53, a fluid flow meter 54, and a check valve 55. A sensor 52 is provided at the bottom of the main riser 1 near the bottom outlet of the pipe for measuring the fluid flow. A fluid flow meter 54 is mounted on the intake pipe 2 outside the water tank for detecting the flow rate of the intake air flow. The one-way valve 55 is installed at the connection between the air inlet pipe 2 and the air compressor 4, and is used for controlling the air flow of the inlet air to flow into the air inlet pipe 2 from the air compressor 4 in one way. The sensor 52 and the fluid flow meter 54 are electrically connected to the detection element 53 through wires, respectively, and the PID controller 51 is electrically connected to the detection element 53 and the check valve 55 through wires, respectively, for monitoring and controlling the flow rate of the intake air flow.
When the gas-liquid lift pump of the embodiment is used, the process is as follows: adding a certain amount of water into the pool, and uniformly stirring the solid-liquid mixture in the pool to ensure that the materials are in a dispersed state. Based on Bernoulli's equation, an air compressor and a one-way valve are opened, and a fixed gas-liquid two-phase or gas-liquid-solid three-phase fluidized bed with higher flow speed is formed above the outlet of the air inlet pipe under the action of external air flow, so that the pressure of a gas-liquid accelerating area is reduced, and fluid in a liquid phase area of the pipeline tends to flow from a high-pressure area to a low-pressure area. The fluid is lifted upwards under the action of atmospheric pressure, is lifted to a material lifting area, and continues to rise under the action of inertia until the material slowly rises to the material lifting area. Because the material slowly rises the district and has the reducing section, the diameter of pipeline expands for thereby fluid velocity of flow reduces and rises and slows down. When the fluid is lifted to the top end of the material slow lifting area, the speed of the fluid continuously drops, and finally the fluid overflows and is discharged, so that the purposes of collecting and recycling the lifted materials are achieved. In the process, the amount of the lift which can be achieved by the lifting device can be calculated by combining Bernoulli equations of different interfaces. The sensor can measure the fluid flow and transmit for detecting element, and fluid flowmeter's use can real time monitoring intake pipe delivered gas's flow, and the PID controller is according to detecting element's information fine setting check valve control gas flow, debugs out the optimum lift according to the actual condition on-the-spot to reach the purpose that promotes the material. When the flow rate of the fluid and other equipment parameters are fixed, the flow rate of the gas can be controlled by adjusting the one-way valve through the PID controller so as to obtain the target lift.
Example 2
As shown in figure 1, a material collecting pipe 3, a storage 6 and an overflow valve 7 are added on the basis of the embodiment 1. The material collecting pipe 3 is sleeved on the outer side of the top of the main lifting pipe 1, the top end of the material collecting pipe is higher than the top end of the main lifting pipe 1, a material discharging port is arranged at the bottom of the material collecting pipe 3, and an included angle theta 2 between the material discharging port and the vertical direction is an obtuse angle. After the fluid moves to the top of the material slow-rising area 14, the fluid becomes overflow to enter the material collecting pipe 3 and is discharged through the material discharge port which is inclined downwards, thereby achieving the purpose of lifting and recovering. The storage 6 and the overflow valve 7 are arranged on the air inlet pipe 2, so that the flow velocity of the air inlet flow can be effectively stabilized, and the solid-liquid waste can be prevented from being sucked backwards.
Example 3
As shown in fig. 1 and 2, in example 1, the diameter of the end of the inlet pipe 2 connected to the main riser 1 is set to be gradually increased to form a trumpet shape. From the pipeline details of the air inlet pipe 2, a round-angle inlet is particularly used at the outlet end of the air inlet pipe 1, so that the friction loss caused by the pipeline reducing at the air inlet is reduced. Meanwhile, the pipeline can be obliquely connected, namely the included angle theta 1 between the air inlet pipe and the main lifting pipe is larger than 90 degrees. Thereby reducing the effect of small-scale turbulence on the final lift generated when gas enters the main riser. Setting the height of the gas-liquid acceleration zone 12 to H12（0＜H12Less than 10), the height ranges of the pipeline liquid phase area 11, the material lifting area 13 and the material slow lifting area 14 are respectively 0 < H11＜2, 0＜H13＜2, H12＜H14＜15, 0＜H15< 5 wherein H12The magnitude of (2) has positive correlation influence on the lift, and can be determined according to the existing situationThe height of each pipe fitting can be flexibly adjusted under the field condition. Setting the diameter range of the pipeline to be 0.2 < D < 2, wherein D is1＜D2＜D3The too wide pipeline can increase the energy consumption of equipment, and the too narrow pipeline is easy to wear, shortens the service life (the data units are all meters). Therefore, the air flow velocity can be better stabilized, and higher lift can be obtained.
Claims (5)
1. A vane-free high-suction-lift gas-liquid lift pump is characterized by comprising a main lift pipeline (1), an air inlet pipe (2), an air compressor (4) and a PID control system (5); the main lifting pipe (1) comprises a pipeline liquid phase area (11), a gas-liquid accelerating area (12), a material lifting area (13) and a material slow lifting area (14) from bottom to top, the diameter of the material slow lifting area (14) is larger than that of the material lifting area (13), and the gas-liquid accelerating area (12) of the main lifting pipe (1) is connected with an air compressor (4) through an air inlet pipe (2); the PID control system (5) comprises a PID controller (51), a sensor (52), a detection element (53), a fluid flow meter (54) and a one-way valve (55), wherein the sensor (52) is arranged at the bottom outlet of the main lifting pipe (1) and used for measuring the fluid flow, the fluid flow meter (54) is arranged on the air inlet pipe (2) and used for detecting the flow of the air inflow, the one-way valve (55) is arranged at the joint of the air inlet pipe (2) and the air compressor (4) and used for controlling the air inflow to flow into the air inlet pipe (2) from the air compressor (4) in a one-way mode, the sensor (52) and the fluid flow meter (54) are respectively electrically connected with the detection element (53), and the PID controller (51) is respectively electrically connected with the detection element (53) and the one-way valve (55) and used for monitoring and controlling the flow of.
2. The impeller-free high suction lift gas-liquid lift pump according to claim 1, further comprising a reservoir (6) and an overflow valve (7), wherein the reservoir (6) and the overflow valve (7) are arranged on the intake pipe (2).
3. The impeller-free high-suction-lift gas-liquid lifting pump according to claim 1, further comprising a material collecting pipe (3), wherein the material collecting pipe (3) is sleeved outside the top of the main lifting pipe (1), and the top end of the material collecting pipe is higher than the top end of the main lifting pipe (1).
4. The impeller-free high-suction-lift gas-liquid lifting pump as recited in claim 3, wherein a material discharge port is provided at the bottom of the material collecting pipe (3), and the material discharge port forms an obtuse angle with the vertical direction.
5. The impeller-free high-suction-lift gas-liquid lift pump as recited in claim 1, wherein the diameter of the end of the inlet pipe (2) connected with the main riser (1) is gradually increased and is trumpet-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110435875.4A CN113027828A (en) | 2021-04-22 | 2021-04-22 | Impeller-free high-suction-lift gas-liquid lift pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110435875.4A CN113027828A (en) | 2021-04-22 | 2021-04-22 | Impeller-free high-suction-lift gas-liquid lift pump |
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| Publication Number | Publication Date |
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| CN113027828A true CN113027828A (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110435875.4A Pending CN113027828A (en) | 2021-04-22 | 2021-04-22 | Impeller-free high-suction-lift gas-liquid lift pump |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832417A (en) * | 2015-04-15 | 2015-08-12 | 江苏永一泵业科技集团有限公司 | Gas-fluid mixture pump experiment device |
| CN206522288U (en) * | 2017-03-02 | 2017-09-26 | 北京万侯环境技术开发有限公司 | A kind of device of gas lift sewage sludge |
| CN208073884U (en) * | 2018-04-18 | 2018-11-09 | 乌海青石化学有限公司 | A kind of efficient airlift pump |
| CN210769218U (en) * | 2019-08-15 | 2020-06-16 | 北京沃太斯环保科技发展有限公司 | Gas-liquid dual-purpose extraction pump |
| JP2020094544A (en) * | 2018-12-13 | 2020-06-18 | 株式会社三井Ｅ＆Ｓホールディングス | Design method of gas lift pump, gas lift pump for experiment, gas lift pump system for experiment, and design device of gas lift pump |
| CN214577967U (en) * | 2021-04-22 | 2021-11-02 | 中国矿业大学 | Impeller-free high-suction-lift gas-liquid lift pump |
-
2021
- 2021-04-22 CN CN202110435875.4A patent/CN113027828A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832417A (en) * | 2015-04-15 | 2015-08-12 | 江苏永一泵业科技集团有限公司 | Gas-fluid mixture pump experiment device |
| CN206522288U (en) * | 2017-03-02 | 2017-09-26 | 北京万侯环境技术开发有限公司 | A kind of device of gas lift sewage sludge |
| CN208073884U (en) * | 2018-04-18 | 2018-11-09 | 乌海青石化学有限公司 | A kind of efficient airlift pump |
| JP2020094544A (en) * | 2018-12-13 | 2020-06-18 | 株式会社三井Ｅ＆Ｓホールディングス | Design method of gas lift pump, gas lift pump for experiment, gas lift pump system for experiment, and design device of gas lift pump |
| CN210769218U (en) * | 2019-08-15 | 2020-06-16 | 北京沃太斯环保科技发展有限公司 | Gas-liquid dual-purpose extraction pump |
| CN214577967U (en) * | 2021-04-22 | 2021-11-02 | 中国矿业大学 | Impeller-free high-suction-lift gas-liquid lift pump |
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