CN218564026U - Pneumatic dredging device combining pressure feeding and air lifting functions - Google Patents
Pneumatic dredging device combining pressure feeding and air lifting functions Download PDFInfo
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- CN218564026U CN218564026U CN202222264676.4U CN202222264676U CN218564026U CN 218564026 U CN218564026 U CN 218564026U CN 202222264676 U CN202222264676 U CN 202222264676U CN 218564026 U CN218564026 U CN 218564026U
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Abstract
The utility model relates to a pneumatic dredging device which combines the pressure feeding and the gas lifting action, which is mainly provided with a pneumatic pump, an air compressor and a gas lifting device; the method is characterized in that: the gas lift device is connected with the air pump exhaust pipe through a pipeline; when the pneumatic pump exhausts, the exhaust enters the gas lift device, sediment at the bottom of the water body is discharged out of the water body under the gas lift action of the gas lift device, and the other part of sediment enters the pneumatic pump under the action of the environmental water pressure along with the discharge of high-pressure gas in the pneumatic pump; after the pneumatic pump is filled with silt, high-pressure gas is injected into the pneumatic pump by the air compressor, and the silt in the pneumatic pump is pushed by the high-pressure gas to be discharged by the mud discharging pipe of the pneumatic pump. The utility model discloses the strength desilting device that combines together with pressure feed and air lift effect make full use of pneumatic pump exhaust energy, simple structure, the desilting is effectual, and energy utilization is high.
Description
Technical Field
The utility model relates to an underwater dredging and dredging device, in particular to a pneumatic dredging device which combines the pressure feeding and the air lifting action.
Background
The prior pneumatic equipment for dredging comprises two types, namely a pneumatic pump (a horse pump) which takes compressed air as a piston to pump out slurry entering a pump body under the action of water level differential pressure; one is a gas lift pump (air lift pump) which injects compressed air into a lifting pipe and lifts sludge from the water bottom to the water surface by using the pressure difference caused by the density difference of the liquid inside and outside the lifting pipe. The two pneumatic dredging devices have the characteristics of simple structure, no easily-damaged parts, and safe and reliable work, do not disturb a clay layer in the dredging working process, and are particularly suitable for environment-friendly dredging and dredging which can not damage water bodies such as rivers, lakes, reservoirs and the like with existing water quality.
The pneumatic pump generally comprises three single pumps, each single pump comprises three main components, namely a pump body, a mud conveying pipe and a gas conveying pipe, and the working principle is as follows: the air pump is pressed into underwater silt by self weight, the silt enters the pump body under the action of ambient water pressure, after the pump body is full of the silt, the air compressor presses compressed air into the pump body of the air pump through the air delivery pipe, and the silt in the pump body is discharged from the mud delivery pipe under the pressure action of high-pressure air; after the sludge is emptied, the air compressor stops supplying air, high-pressure air in the pump body is discharged to the atmosphere through the air delivery pipe, and then the sludge outside the pump body enters the pump body again under the action of the ambient water pressure; when one single pump is used for air inlet and mud discharge, the other two single pumps are used for air exhaust and mud inlet, and the three single pumps work alternately and circularly to realize continuous and stable mud conveying. Although the pneumatic pump has the advantages of simple structure and no pollution to water during dredging, the high-pressure air in the pump body is directly discharged into the atmosphere, so that effective work is not generated, energy waste is caused, the energy utilization rate is low, and the energy consumption cost is high; especially, under the working condition that the pneumatic pump is used for conveying slurry through a long-distance pipeline, the pressure of high-pressure air in the pump body is far higher than the ambient water pressure, and the high-pressure air is directly discharged into the atmosphere, so that the energy is greatly wasted, and the running cost of the pneumatic pump is greatly increased.
The gas lift pump has the overall energy efficiency of only about 20 percent due to the large energy loss of gas, liquid and solid three-phase flow in the lift pipe, and the problems of high energy consumption and low energy utilization efficiency exist. Therefore, the pneumatic device for dredging and dredging needs to be provided, which can reduce energy consumption and improve energy utilization efficiency.
Disclosure of Invention
The utility model aims at the above-mentioned problem, provide a strength desilting device that combines together pressure feed and air-lift effect. In order to solve the above problems, the present inventors have conducted intensive studies on the operating principle of the conventional pneumatic dredging apparatus and the dredging process, and as a result, found that the pneumatic conveying and the air-lift effect are combined, and the air-lift effect generated by the high-pressure exhaust of the conventional pneumatic pump is an excellent solution to the above problems, thereby realizing the present invention.
The utility model aims to realize the following technical proposal that a pneumatic desilting device which combines the pressure feeding and the air lifting action is mainly provided with a pneumatic pump, an air compressor and an air lifting device; the pneumatic pump is provided with a pump body, an air inlet pipe, an exhaust pipe and a mud discharge pipe, wherein the pump body is a hollow cavity, and is provided with an air vent, a mud inlet and a mud inlet check valve, and one end of the air vent is respectively connected with the air inlet pipe and the exhaust pipe; the method is characterized in that: the gas lift device is connected with the air pump exhaust pipe; when the pneumatic pump exhausts, the exhaust enters the gas lift device through the air port and the exhaust pipe, sediment at the water bottom is discharged out of a water body under the gas lift action of the gas lift device, and the other part of sediment enters the pump body through the sediment inlet under the action of environmental water pressure along with the discharge of high-pressure gas in the pump body; after silt was full of the pump body, the air compressor machine was injected high-pressure gas through intake pipe and blow vent to the pump body in, and the mud check valve that advances is closed under gas pressure promotes, and high-pressure gas promotes the internal silt of pump and is discharged by the mud pipe.
Further, a pneumatic dredging device combining pressure feeding and air lifting functions is characterized in that: be equipped with at least one gas lift device, every gas lift device all is equipped with the tedge, gas lift intake pipe and at least one gas lift head, the overhead gas lift air inlet that still is equipped with of gas lift, the gas lift air inlet passes through the gas lift intake pipe and links to each other with the air pump blast pipe, the air pump is at the exhaust process, high-pressure gas is through the air vent in the pump body, the blast pipe, the gas lift intake pipe, the gas lift air inlet, the gas lift head gets into in the tedge, thereby the density of the intraductal water of tedge has been reduced, the intraductal water come-up of lifting under the effect of the intraductal water differential pressure of lifting, drive submarine silt come-up blowout surface of water together simultaneously.
Further, a pneumatic dredging device combining pressure feeding and air lifting functions is characterized in that: the gas lift device is characterized in that at least one gas lift head is higher than the top of the pump body.
Further, a pneumatic dredging device combining pressure feeding and air lifting functions is characterized in that: the position of at least one gas lifting head of the gas lifting device is at least 5 meters higher than the top position of the pump body.
Further, a pneumatic dredging device combining pressure feeding and air lifting functions is characterized in that: and the gas lift air inlet is also provided with a gas lift air inlet one-way valve.
Further, a pneumatic dredging device combining pressure feeding and air lifting functions is characterized in that: the pneumatic pump is provided with a controller and at least two pneumatic pumps, and under the instruction of the controller, when the air compressor injects high-pressure gas into one of the pneumatic pumps to discharge mud outwards, the rest pneumatic pumps are all in the states of exhausting and feeding mud.
Further, a pneumatic dredging device combining pressure feeding and air lifting functions is characterized in that: the pneumatic pump is also provided with a pneumatic reversing valve, one end of the pneumatic reversing valve is connected with the air vent, and the other end of the pneumatic reversing valve is respectively connected with the air inlet pipe and the exhaust pipe; the pneumatic reversing valve controls the air inlet and outlet time sequence of the pneumatic pump according to the time instruction of the controller.
Further, a pneumatic dredging device combining pressure feeding and air lifting functions is characterized in that: the pump body is also provided with a liquid level sensor, and the controller sends an instruction to the pneumatic reversing valve to control the air inlet and exhaust time sequence of the pneumatic pump according to a liquid level signal of the liquid level sensor.
The utility model relates to a pneumatic desilting device that will press feed and air lift effect to combine together utilizes the air pump exhaust to produce the air lift effect simultaneously, has promoted the energy utilization efficiency of air pump, has improved the work efficiency of air pump.
Drawings
Fig. 1 is a perspective view of the structure of embodiment 1 of the present invention.
Fig. 2 is a front view of embodiment 1 of the present invention.
Fig. 3 is a plan view of embodiment 1 of the present invention.
Fig. 4 is a right side view of embodiment 1 of the present invention.
Fig. 5 is a perspective view of the air pump according to embodiment 1 of the present invention.
Fig. 6 is a schematic structural view of an air pump according to embodiment 1 of the present invention.
Fig. 7 is a perspective view of embodiment 2 of the present invention.
Fig. 8 is a front view of embodiment 2 of the present invention.
Fig. 9 is a plan view of embodiment 2 of the present invention.
Fig. 10 is a right side view of embodiment 2 of the present invention.
Fig. 11 is a perspective view of embodiment 3 of the present invention.
Fig. 12 is a right side view of embodiment 3 of the present invention.
Fig. 13 is a front view of embodiment 3 of the present invention.
Fig. 14 is a plan view of embodiment 3 of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
The utility model discloses embodiment 1's working process does: when the pump body 1.1 is placed at the bottom of water and mud is fed, the controller 4 controls the pneumatic reversing valve 5 to disconnect the air inlet pipe 1.2 from the air vent 1.1.1 and simultaneously connect the exhaust pipe 1.3 with the air vent 1.1.1, the mud feeding one-way valve 1.1.3 is pushed open by the water pressure, and the sediment at the bottom of the water enters the pump body 1.1 through the mud feeding port 1.1.2 under the action of the environmental water pressure; after the controller 4 judges that the pump body 1.1 is full of silt according to clock information, the pneumatic reversing valve 5 is controlled to disconnect the exhaust pipe 1.3 from the air vent 1.1.1 and communicate the air inlet pipe 1.2 with the air vent 1.1.1, the air compressor 2 injects high-pressure gas into the pump body 1.1 through the air inlet pipe 1.2, the pneumatic reversing valve 5 and the air vent 1.1.1, the silt inlet one-way valve 1.1.3 is closed under the pushing of gas pressure, and the high-pressure gas pushes the silt in the pump body 1.1 to be discharged through the silt discharge pipe 1.4; after the controller 4 judges that silt in the pump body 1.1 is emptied according to clock information, the pneumatic reversing valve 5 is controlled to disconnect the air inlet pipe 1.2 from the air vent 1.1.1, and simultaneously the exhaust pipe 1.3 is communicated with the air vent 1.1.1, high-pressure gas in the pump body 1.1 enters the lifting pipe 3.2 through the air vent 1.1.1, the exhaust pipe 1.3, the gas lifting air inlet pipe 3.3, the gas lifting air inlet 3.1.1 and the gas lifting head 3.1, so that the density of a water body in the lifting pipe 3.2 is reduced, the water body in the lifting pipe 3.2 floats up under the action of the pressure difference between the water body inside and outside the lifting pipe 3.2, and part of underwater silt is driven to float up and spray out of the water surface together; meanwhile, a part of sediment at the bottom can enter the pump body 1.1 through the sediment inlet 1.1.2 under the action of the ambient water pressure along with the discharge of high-pressure gas in the pump body 1.1. Through the control of the controller 4 on the pneumatic reversing valve 5, when the air compressor 2 injects high-pressure gas into one of the pneumatic pumps 1 to discharge mud outwards, the other two pneumatic pumps 1 are in the states of discharging gas and feeding mud.
Example 2 referring to fig. 7 to 10, a pneumatic dredging apparatus combining pressure feeding and air lifting mainly comprises a pneumatic pump 1, an air compressor 2, an air lifting device 3, a controller 4, a pneumatic reversing valve 5 and a liquid level sensor 6. The difference from the embodiment 1 is that four pneumatic pumps 1 and three gas lifting devices 3 are arranged, and each pneumatic pump body (1.1) is provided with a liquid level sensor 6; each gas lift device 3 is provided with three gas lift heads 3.1, the height position of the first gas lift head is flush with the top of the pump body 1.1, the second gas lift head is 5m higher than the first gas lift head, and the third gas lift head is 10m higher than the first gas lift head; the rest of the structure is the same as in example 1. The working process is different from that of the embodiment 1 in that: the controller 4 judges whether the sediment in the pump body 1.1 is in a full-filling state or an emptying state according to a liquid level signal of the liquid level sensor 6; the rest of the working procedure is the same as in example 1.
The working process is as follows: when the pump body 1.1 is placed at the bottom of water and mud is fed, the pressure of the water body pushes the mud feeding one-way valve 1.1.3 open, and the sediment at the bottom of the water enters the pump body 1.1 through the mud feeding port 1.1.2 under the action of the water pressure of the environment. After the pump body 1.1 is filled with silt, the air compressor 2 is started to output high-pressure air; one part of high-pressure air enters the pump body 1.1 through the air inlet pipe 1.2 and the air vent 1.1.1, the mud inlet one-way valve 1.1.3 is closed under the pushing of gas pressure, and the high-pressure air pushes the mud in the pump body 1.1 to be discharged through the mud discharge pipe 1.4; the other part of high-pressure air enters the gas lifting device 3 through the air inlet pipe 1.2 and the air outlet pipe 1.3, and the sediment at the bottom of the water is discharged out of the water body through the lifting pipe 3.2 under the gas lifting action of the gas lifting device 3. After silt in the air pump body 1.1 is emptied, the air compressor 2 is closed, high-pressure air in the air pump body 1.1 enters the gas lifting device 3 through the air port 1.1 and the exhaust pipe 1.3, part of silt at the bottom of the water is discharged out of the water body through the lifting pipe 3.2 under the gas lifting action of the gas lifting device 3, and the other part of silt enters the air pump body 1.1 through the silt inlet 1.1.2 under the action of environmental water pressure along with the discharge of high-pressure air in the air pump body 1.1.
Although the present invention has been described in detail using the specific manner, it is apparent to those skilled in the art that various changes can be made without departing from the spirit and scope of the invention.
Claims (8)
1. A pneumatic dredging device combining pressure feeding and air lifting functions is mainly provided with a pneumatic pump (1), an air compressor (2) and an air lifting device (3); the pneumatic pump (1) is provided with a pump body (1.1), an air inlet pipe (1.2), an exhaust pipe (1.3) and a sludge discharge pipe (1.4), the pump body (1.1) is a hollow cavity, a vent hole (1.1.1), a sludge inlet (1.1.2) and a sludge inlet check valve (1.1.3) are arranged on the pump body, and one end of the vent hole (1.1.1) is respectively connected with the air inlet pipe (1.2) and the exhaust pipe (1.3); the method is characterized in that: the gas lift device (3) is connected with an air pump exhaust pipe (1.3); when the pneumatic pump (1) exhausts, the exhaust enters the gas lift device (3) through the gas port (1.1.1) and the exhaust pipe (1.3), silt at the bottom of the water is discharged out of the water body under the gas lift action of the gas lift device (3), and the other part of silt enters the pump body (1.1) through the mud inlet (1.1.2) under the action of the environmental water pressure along with the discharge of high-pressure gas in the pump body (1.1); after the pump body (1.1) is filled with silt, the air compressor (2) injects high-pressure gas into the pump body (1.1) through the air inlet pipe (1.2) and the air vent (1.1.1), the silt inlet one-way valve (1.1.3) is closed under the pushing of gas pressure, and the silt in the pump body (1.1) is pushed by the high-pressure gas to be discharged through the silt discharge pipe (1.4).
2. The pneumatic dredging device combining pressure feeding and air lifting according to claim 1, wherein: be equipped with at least one gas lift device (3), every gas lift device (3) all is equipped with lift pipe (3.2), gas lift intake pipe (3.3) and at least one gas lift head (3.1), still be equipped with gas lift air inlet (3.1.1) on gas lift head (3.1), gas lift air inlet (3.1.1) links to each other with air pump blast pipe (1.3) through gas lift intake pipe (3.3), air pump (1) is in the exhaust process, high-pressure gas is through air inlet (1.1.1), blast pipe (1.3) in the pump body (1.1), gas lift intake pipe (3.3), gas lift air inlet (3.1.1), gas lift head (3.1) get into in lift pipe (3.2) to reduce the density of silt in lift pipe (3.2), on the water body in lift pipe (3.2) under the effect of the inside and outside water body pressure differential lift pipe (3.2), drive the surface of water blowout water simultaneously together and float.
3. The pneumatic dredging device combining pressure feeding and air lifting according to claim 2, wherein: the gas lift device (3) is characterized in that at least one gas lift head (3.1) is higher than the top of the pump body (1.1).
4. The pneumatic dredging device combining pressure feeding and air lifting according to claim 2, wherein: the gas lift device (3) is provided with at least one gas lift head (3.1) which is at least 5 meters higher than the top of the pump body (1.1).
5. The pneumatic dredging device combining pressure feeding and air lifting according to claim 2, wherein: and a gas lift air inlet check valve (3.1.1.1) is also arranged on the gas lift air inlet (3.1.1).
6. A pneumatic dredging device with combined pressure feeding and air lifting functions as claimed in any one of claims 1-5, characterized in that: the pneumatic pump is provided with a controller (4) and at least two pneumatic pumps (1), and under the instruction of the controller (4), when the air compressor (2) injects high-pressure gas into one of the pneumatic pumps (1) to discharge mud outwards, the rest pneumatic pumps (1) are all in the states of exhausting and feeding mud.
7. The pneumatic dredging device combining pressure feeding and air lifting according to claim 6, wherein: the pneumatic pump (1) is also provided with a pneumatic reversing valve (5), one end of the pneumatic reversing valve (5) is connected with the air vent (1.1.1), and the other end of the pneumatic reversing valve is respectively connected with the air inlet pipe (1.2) and the air outlet pipe (1.3); the pneumatic reversing valve (5) controls the air inlet and outlet time sequence of the pneumatic pump (1) according to the time instruction of the controller (4).
8. The pneumatic dredging device combining pressure feeding and air lifting according to claim 7, wherein: a liquid level sensor (6) is further arranged in the pump body (1.1), and the controller (4) sends an instruction to the pneumatic reversing valve (5) according to a liquid level signal of the liquid level sensor (6) to control the air inlet and exhaust timing sequence of the pneumatic pump (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222264676.4U CN218564026U (en) | 2022-08-27 | 2022-08-27 | Pneumatic dredging device combining pressure feeding and air lifting functions |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222264676.4U CN218564026U (en) | 2022-08-27 | 2022-08-27 | Pneumatic dredging device combining pressure feeding and air lifting functions |
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| CN218564026U true CN218564026U (en) | 2023-03-03 |
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| CN202222264676.4U Active CN218564026U (en) | 2022-08-27 | 2022-08-27 | Pneumatic dredging device combining pressure feeding and air lifting functions |
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| CN (1) | CN218564026U (en) |
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- 2022-08-27 CN CN202222264676.4U patent/CN218564026U/en active Active
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