CN214790521U - Liquid conveying device and liquid conveying system - Google Patents
Liquid conveying device and liquid conveying system Download PDFInfo
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- CN214790521U CN214790521U CN202120136801.6U CN202120136801U CN214790521U CN 214790521 U CN214790521 U CN 214790521U CN 202120136801 U CN202120136801 U CN 202120136801U CN 214790521 U CN214790521 U CN 214790521U
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Abstract
The utility model discloses a liquid conveying device, including air lift unit, sprayer unit and separating unit, air lift unit and liquid intercommunication are used for promoting liquid, the separating unit with the output of air lift unit links to each other for carry out gas-liquid separation to the liquid that promotes through the air lift unit, the sprayer unit includes the sprayer, the sprayer with the separating unit links to each other, is used for rightly the separating unit evacuation, and is used for the suction gas after the gas-liquid separation in the separating unit. The utility model discloses still disclose one kind and contain liquid conveyor's liquid conveying system. The utility model discloses a liquid conveying device also can realize the transportation to liquid under lower submergence degree condition to air lift's work efficiency among the liquid conveying device has been improved.
Description
Technical Field
The utility model particularly relates to a liquid conveying device and contain liquid conveying device's liquid conveying system.
Background
Radioactive waste can only be rendered harmless and radioactive levels reduced by its own inherent decay law or transmutation. The radioactivity level of the medium and high level liquid is high, so that personnel can not directly contact the medium and high level liquid to carry out process operation, otherwise, the personnel are irradiated by the dose exceeding the limit value, and unacceptable injury risks are brought to individuals and the society. Therefore, radioactive liquid delivery is a critical link in the radioactive waste management project. In practical engineering, in the processes of radioactive waste treatment technology of liquid-solid type, quantitative and timed liquid conveying and the like, the accuracy of liquid conveying and feeding directly influences the safe operation of subsequent equipment and the product quality. Generally, the liquid is transported by using an air lift method, but the air lift method in the prior art has low transportation efficiency, and the transportation of the liquid can be realized only under the condition that the air lift is in a high submergence degree (generally, the submergence degree is more than 50 percent), and the transportation of the liquid is difficult to realize under the condition that the air lift is in a low submergence degree (generally, the submergence degree is less than 50 percent).
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to the above-mentioned not enough that exists among the prior art, provide a liquid conveyor and contain liquid conveyor's liquid conveying system, liquid conveyor also can realize the transportation to liquid under lower submergence degree condition to the work efficiency of air lift among the liquid conveyor has been improved.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a liquid delivery device includes an air lift unit, an ejector unit, and a separation unit,
the air lifting unit is in communication with a liquid for lifting the liquid,
the separation unit is connected with the output end of the air lifting unit and is used for carrying out gas-liquid separation on the liquid lifted by the air lifting unit,
the ejector unit comprises an ejector, and the ejector is connected with the separation unit and used for vacuumizing the separation unit and sucking the gas subjected to gas-liquid separation in the separation unit.
Preferably, the ejector unit further comprises a first compressed air inlet pipe and an exhaust pipe, an output end of the first compressed air inlet pipe is connected to the ejector, an input end of the exhaust pipe is connected to the ejector, the first compressed air enters the ejector from the first compressed air inlet pipe and is discharged from the exhaust pipe together with the gas after gas-liquid separation,
the pressure of the first compressed air is 0.3-3.0MPa, and the flow rate is 0.05-0.3Nm3/min。
Preferably, the separation unit comprises a gas-liquid separation tank, the liquid conveying device further comprises a liquid receiving tank,
the gas-liquid separation tank is communicated with the ejector through a separation tank exhaust pipe, the gas-liquid separation tank is communicated with the liquid receiving tank through a separation tank liquid discharge pipe,
the vacuum degree in the gas-liquid separation tank is 0-1000 mbar.
Preferably, the airlift unit includes an airlift, an air lift pipe, a second compressed air inlet pipe, and a liquid inlet pipe;
the air lifter is arranged at the inlet of the air lifting pipe;
one end of the liquid inlet pipe is connected with the air lifter, and the other end of the liquid inlet pipe extends into the liquid in the conveying tank;
said second compressed air inlet duct communicating with said airlift for providing second compressed air to the airlift;
the other end of the air lifting pipe is communicated with the gas-liquid separation tank.
Preferably, the pressure of the second compressed air is in the range of 0.2 to 0.6Mpa, and the flow rate is in the range of 1 to 50Nm3/min。
Preferably, the liquid delivery device further comprises an overflow tube,
one end of the overflow pipe is connected with the gas-liquid separation tank, and the other end of the overflow pipe extends into the conveying tank.
Preferably, the airlift unit further comprises a solid feeder disposed on the liquid inlet pipe and below the airlift.
Preferably, the air lift unit and the gas-liquid separation tank form a group of transportation assemblies, the number of the transportation assemblies is multiple, and the multiple groups of transportation assemblies are sequentially connected in series between the conveying tank and the liquid receiving tank.
The utility model also provides a liquid conveying system, including carrying the jar, still include foretell liquid conveyor.
Preferably, the liquid delivery system further comprises a volume meter for metering the volume of liquid collected in the liquid receiving tank;
the liquid conveying system further comprises a controller, the controller is respectively electrically connected with the volume meter, the air lifting unit and the ejector unit, a preset liquid volume value is arranged in the controller and used for receiving a measured value sent by the volume meter, comparing the measured value with the preset liquid volume value arranged in the controller, and controlling the air lifting unit and the ejector unit to start and stop according to a comparison result.
The utility model discloses a liquid conveying device passes through the effect of sprayer, to the discrete element evacuation, can realize the transport to liquid under different submergence degrees (low submergence degree to high submergence degree) condition to the work efficiency of air lift among the liquid conveying device has been improved. The liquid conveying device in this embodiment does not have mechanical rotating part, can realize that the device exempts from the maintenance, and the operating personnel of being convenient for is to the management and the operation of device, in addition, the utility model discloses a when liquid conveying device carried radioactive liquid, because its characteristics of exempting from the maintenance, can avoid personnel to receive the radioactivity and shine.
Particularly, the beneficial effects are as follows:
1. the utility model discloses a liquid conveying device has air lift unit, sprayer unit and separator element, under the sprayer operating condition, can be to the separator element evacuation, make the separator element have certain vacuum, thereby form certain pressure differential between separator element and liquid level, make the air lift among the liquid conveying device can enough realize the transport of liquid under the condition of high submergence degree, also can realize realizing the transport of liquid under the condition of low submergence degree, and reach the purpose that improves the work efficiency of air lift;
2. as a preferred embodiment, the liquid conveying device of the embodiment is further provided with an overflow pipe, so that the problem that when radioactive liquid is conveyed, a large amount of radioactive liquid drops are entrained in exhaust gas due to the fact that the liquid level in the separation unit is too high can be avoided;
3. as a preferred embodiment, the liquid conveying device of the utility model realizes the purpose of conveying liquid quantitatively and regularly by controlling the flow and pressure of compressed air in the ejector and the flow and pressure of compressed air in the air lifter, and ensures the safe operation and product quality of subsequent equipment;
4. as a preferred embodiment, the utility model discloses a liquid conveying device is through setting up the solid feeder, makes the utility model discloses a liquid conveying device's application scope is wide, not only can be applied to the transport of all radioactive liquid and other poisonous and harmful and can not direct contact's liquid, still can be applied to the transport of the feed liquid that contains solid particle such as mud etc..
The liquid conveying system of the utility model adopts the liquid conveying device, can realize the conveying of the air lifter to the liquid under different submergence degrees, and has simple structure,
The occupied area is small, and the investment and the operation cost are favorably reduced.
Drawings
Fig. 1 is a schematic structural diagram of a liquid conveying device in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another liquid conveying apparatus according to an embodiment of the present invention.
In the figure: 1. 15-an airlift; 2. 16-a second compressed air inlet duct; 3-a liquid inlet tube; 4. 17-an air riser; 5-a conveying tank; 6-an ejector; 7-a first compressed air inlet duct; 8-ejector suction pipe; 9-an exhaust pipe; 10. 19-a gas-liquid separation tank; 11. 18-a separator tank inlet pipe; 12. 21-separator tank vent pipe; 13. 20-a knockout drum drain; 14-liquid receiving tank.
Detailed Description
In the following, the technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of the present invention.
In the description of the present invention, it should be noted that the indication of orientation or positional relationship such as "up" is based on the orientation or positional relationship shown in the drawings, and is only for convenience and simplicity of description, and does not indicate or imply that the indicated device or element must be provided with a specific orientation, constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected," "disposed," "mounted," "fixed," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.
The utility model provides a liquid conveying device, which comprises an air lifting unit, an ejector unit and a separation unit,
the air lifting unit is in communication with a liquid for lifting the liquid,
the separation unit is connected with the output end of the air lifting unit and is used for carrying out gas-liquid separation on the liquid lifted by the air lifting unit,
the ejector unit comprises an ejector, and the ejector is connected with the separation unit and used for vacuumizing the separation unit and sucking the gas subjected to gas-liquid separation in the separation unit.
The utility model also provides a liquid conveying system, including carrying the jar, still include foretell liquid conveyor.
Example 1:
the present embodiment discloses a liquid transport apparatus, as shown in fig. 1 and 2, including an airlift unit, an ejector unit, and a separation unit, the airlift unit being in communication with a liquid for lifting the liquid.
The separation unit is connected with the output end of the air lifting unit and is used for carrying out gas-liquid separation on the liquid (gas-liquid mixture after being lifted) lifted by the air lifting unit.
The ejector unit comprises an ejector 6, and the ejector 6 is connected with the separation unit and used for vacuumizing the separation unit and sucking the gas after gas-liquid separation in the separation unit.
In this embodiment, the ejector unit further includes a first compressed air inlet pipe 7 and an exhaust pipe 9, wherein an output end of the first compressed air inlet pipe is connected to the ejector 6, an input end of the exhaust pipe 9 is connected to the ejector 6, the first compressed air enters the ejector 6 from the first compressed air inlet pipe 7 and can be discharged from the exhaust pipe 9 together with the gas after gas-liquid separation, and the first compressed air can vacuumize the separation unit connected to the ejector 6 and carry away the gas separated from the separation unit in the movement process.
Specifically, first compressed air enters into sprayer 6 from first compressed air inlet pipe 7, and follow exhaust pipe 9 in-process, can be to evacuation in the separation unit, certain vacuum has in the messenger separation unit, when the vacuum degree is greater than 0mbar, there is the pressure differential between separation unit and the liquid level of waiting to carry liquid, under the unchangeable condition of compressed air's that lets in the airlift unit pressure and flow, the airlift unit also can realize the promotion to liquid under the condition of low submergence degree, thereby realize liquid conveyor under the condition of different submergence degrees, the homoenergetic realizes the transportation to liquid, and improved airlift's work efficiency.
In this embodiment, the separation unit includes a gas-liquid separation tank 10, the liquid conveying apparatus further includes a liquid receiving tank 14, the gas-liquid separation tank 10 is communicated with the ejector 6 through a separation tank exhaust pipe 12, and the gas-liquid separation tank 10 is communicated with the liquid receiving tank 14 through a separation tank liquid discharge pipe 13. In this embodiment, set up the separation element and can avoid mixing with the liquid droplet in the exhaust, especially when carrying the liquid that has the radioactivity, can avoid mixing with the liquid droplet that has the radioactivity in the exhaust to need not to set up gas purification device in addition, can save the manufacturing cost of whole device.
In the present embodiment, the knockout drum drain 13 communicates with the bottom of the gas-liquid separation tank 10, so that the liquid separated in the gas-liquid separation tank 10 can be collected into the liquid receiving tank 14 by gravity self-flow.
In this embodiment, the gravity flow rate of the liquid in the drain pipe 13 of the separation tank is related to the vacuum degree of the gas-liquid separation tank 10, and the liquid is not pumped into the exhaust pipe 12 of the separation tank by adjusting the vacuum degree of the separation tank 10 and combining the set height of the gas-liquid separation tank 10.
Preferably, the liquid delivery device further comprises an overflow pipe 22, wherein one end of the overflow pipe 22 is connected with the gas-liquid separation tank 10, and the other end thereof extends into the delivery tank 5. Specifically, one end of the overflow pipe 22 is connected to the side wall of the gas-liquid separation tank 10, and the other end of the overflow pipe extends into the delivery tank 5, wherein the specific position where the overflow pipe 22 is connected to the side wall of the gas-liquid separation tank 10 is determined according to actual working conditions. When the liquid level in the gas-liquid separation tank 10 exceeds the alarm level, the waste liquid exceeding the alarm level will flow by itself through the overflow pipe 22 into the transport tank 5 for containing the liquid.
In this embodiment, as shown in fig. 1, the air lifting unit includes an air lifter 1, an air lifting pipe 4, a second compressed air inlet pipe 2 and a liquid inlet pipe 3, the air lifter 1 is disposed at an inlet of the air lifting pipe, one end of the liquid inlet pipe 3 is connected to the air lifter 1, and the other end of the liquid inlet pipe extends into the liquid in the conveying tank 5. A second compressed air inlet pipe is communicated with the airlift 1 for supplying second compressed air to the airlift 1, and the other end of the air lift pipe 4 is communicated with the gas-liquid separation tank 10.
The airlift 1 may be disposed inside the transfer pot 5, or may be disposed in an open environment outside the transfer pot 5. Therefore, the position of the air lifter 1 can be set reasonably according to the space of the liquid conveying device, and the setting of the liquid conveying device is more reasonable.
The airlift unit and the knock out drum comprise a set of transport assemblies. In this embodiment, the number of the transportation assemblies may be one group, and the structure and control of the liquid delivery device are the simplest. Of course, the number of transport modules may also be several groups, which are arranged in series between the delivery tank 5 and the liquid receiving tank 14.
As shown in fig. 2, in the liquid transporting apparatus, the number of the transport modules is two, that is, the number of the airlift unit and the liquid-liquid separation tank is two, respectively, and the second group of the transport modules is disposed between the liquid-liquid separation tank 10 and the liquid-receiving tank 14. Wherein, the liquid enters into the airlift 1 through the liquid inlet pipe 3, then enters into the gas-liquid separation tank 10 through the riser pipe 4, and is subjected to gas-liquid separation through the gas-liquid separation tank 10, wherein the separated gas is discharged from the separation tank exhaust pipe 12, the liquid is discharged from the separation tank drain pipe 13 and enters into the gas-liquid separation tank 19 through the airlift 15, and is subjected to gas-liquid separation in the gas-liquid separation tank 19, and finally the separated liquid enters into the liquid receiving tank 14 through the separation tank drain pipe 20.
In this embodiment, when the liquid to be transported is a radioactive liquid, the first compressed air isThe pressure of (A) is 0.3-3.0MPa, the flow rate is 0.05-0.3Nm3And/min, wherein the vacuum degree in the separation unit is 0-1000mbar, the vacuum degree in the separation unit is 0mbar when the air lifting unit is in a high immersion degree (the immersion degree is more than 50%), and the vacuum pumping in the separation unit is required when the air lifting unit is in a low immersion degree (the immersion degree is less than 50%). Usually, the pressure of the second compressed air is in the range of 0.2 to 0.6MPa and the flow rate is in the range of 1 to 50Nm when the separation unit is brought to this degree of vacuum3Min, and the time for introducing the first compressed air for vacuumizing the separation unit is 0-5min, preferably 0-3 min. The pressure range and the flow range of the compressed air have the lowest energy consumption on the premise of ensuring the transportation of the radioactive liquid, and the vacuum degree required by the working condition can be quickly reached.
Specifically, the number of the airlift units is specifically described as one.
Firstly, determining the relative installation heights of the air lifter 1, the conveying tank 5 and the gas-liquid separation tank 10 according to the submergence and the actual working condition, determining the installation height of the lifting pipe 4, and forming a certain amount of submergence in the air lifter 1, wherein the submergence can be 1-90%.
Subsequently, first compressed air is introduced into the first compressed air inlet pipe 7 at a pressure and flow rate, generally, the pressure of the first compressed air is 0.3 to 3.0MPa, and the flow rate of the first compressed air is 0.05 to 0.3L/min, and the first compressed air is used for vacuumizing the gas-liquid separation tank 10, wherein the vacuumizing time may be 0 to 5min, and preferably, the vacuumizing time may be 0 to 3 min. So that a certain amount of vacuum degree is formed in the gas-liquid separation tank 10, wherein the numerical range of the vacuum degree is 0-1000 mbar.
Then, second compressed air is introduced into the second compressed air inlet pipe 2 at a pressure and flow rate, typically in the range of 0.2 to 0.6MPa and at a flow rate of 1 to 50Nm3And/min. Under the action of the second compressed air, the liquid in the transfer pot 5 enters the airlift 1 through the liquid inlet pipe 3 of the airlift 1. In the airlift 1, a certain amount of compressed air is mixed with a liquidAnd is combined into the riser 4, and then, the gas-liquid mixture is introduced into the gas-liquid separation tank 10 through the separation tank inlet pipe 11. Wherein, in the liquid conveying process, the vacuum degree in the gas-liquid separation tank 10 is maintained unchanged, and the vacuum degree is used for maintaining the quantitative liquid conveying.
Then, the gas-liquid mixture completes the gas-liquid separation process in the gas-liquid separation tank 10, the gas enters the ejector suction pipe 8 through the separation tank exhaust pipe 12, then is mixed with the first compressed air introduced from the first compressed air inlet pipe 7 in the ejector 6 and is discharged through the exhaust pipe 9, and the separated liquid enters the liquid receiving tank 14 through the separation tank discharge pipe 13 at the bottom of the gas-liquid separation tank.
When the liquid volume in the liquid receiving tank 14 reaches a predetermined delivery volume, the supply of the second compressed air in the second compressed air inlet pipe 2 and the supply of the first compressed air in the first compressed air inlet pipe 7 are respectively stopped, and the delivery power source is lost, so that the device stops the delivery process, i.e. the quantitative delivery is completed. In the whole process of conveying liquid, the vacuum degree of the gas-liquid separation tank 10 and the conveying flow of the air lifter 1 can be changed by adjusting the flow and the pressure of the second compressed air introduced into the second compressed air inlet pipe 2 and/or the first compressed air introduced into the first compressed air inlet pipe 7, so that the timed and quantitative conveying can be completed within a specified time.
In this embodiment, the airlift unit further includes a solid feeder, and the solid feeder is disposed on the liquid inlet pipe 3, and is located the below of the airlift 1, and it makes to set up the solid feeder the utility model discloses a liquid conveying device can be applied to the transport of the feed liquid that contains solid particles such as mud. When the feed liquid containing solid particles is conveyed, the specification of the bottom section of the air lifter in the air lifter 1 can be determined according to the conveying of the solid-containing liquid with different particle sizes.
The liquid conveying device of the embodiment is provided with the air lifting unit, the ejector unit and the separation unit, the separation unit is vacuumized under the action of the ejector, the air lifter can lift liquid under the conditions of different submergence degrees, and the working efficiency of the air lifter in the liquid conveying device is improved. The liquid conveying device in this embodiment does not have mechanical rotating part, can realize that the device exempts from the maintenance, and the operating personnel of being convenient for is to the management and the operation of device, and in addition, when the liquid conveying device of this embodiment carries radioactive liquid, because its characteristics of exempting from the maintenance, can also avoid personnel to receive the radioactivity and shine.
Example 2:
the embodiment discloses a liquid conveying system, which comprises a conveying tank 5 and further comprises the liquid conveying device in the embodiment 1, wherein the liquid conveying device is used for conveying the liquid in the conveying tank 5.
In this embodiment, the liquid delivery system further comprises a volume meter for metering the volume of liquid collected in the liquid receiving tank 14. In particular, the volume meter is disposed on the liquid receiving tank 14,
the liquid conveying system further comprises a controller, the controller is respectively electrically connected with the volume meter, the air lifting unit and the ejector unit, a preset liquid volume value is arranged in the controller, the controller is used for receiving a measured value sent by the volume meter, comparing the measured value with the preset liquid volume value arranged in the controller, and controlling the starting and stopping of the air lifting unit and the ejector unit according to a comparison result.
Wherein, can start ejector 6 earlier and make the separation unit in have certain vacuum, start airlift 1 again and carry out liquid conveying, also can start ejector 6 and airlift 1 simultaneously, but need keep the vacuum in the transfer line invariable, be convenient for steady state ration transport liquid.
The liquid conveying system of the embodiment can realize the conveying of the liquid by the air lifter under different immersion degrees by adopting the liquid conveying device, has a simple structure and small occupied area, and is favorable for reducing the investment and the operation cost.
It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. A liquid delivery device comprising an airlift unit, an ejector unit and a separation unit,
the air lifting unit is in communication with a liquid for lifting the liquid,
the separation unit is connected with the output end of the air lifting unit and is used for carrying out gas-liquid separation on the liquid lifted by the air lifting unit,
the ejector unit comprises an ejector (6), and the ejector is connected with the separation unit and used for vacuumizing the separation unit and sucking the gas subjected to gas-liquid separation in the separation unit.
2. The liquid transporting apparatus according to claim 1, wherein the ejector unit further comprises a first compressed air inlet pipe (7) having an output end connected to the ejector and an exhaust pipe (9) having an input end connected to the ejector,
first compressed air enters the ejector from the first compressed air inlet pipe and is discharged from the gas discharge pipe together with gas after gas-liquid separation,
the pressure of the first compressed air is 0.3-3.0MPa, and the flow rate is 0.05-0.3Nm3/min。
3. The liquid delivery device according to claim 2, wherein the separation unit comprises a gas-liquid separation tank (10), the liquid delivery device further comprising a liquid receiving tank (14),
the gas-liquid separation tank is communicated with the ejector through a separation tank exhaust pipe (12), the gas-liquid separation tank is communicated with the liquid receiving tank through a separation tank liquid discharge pipe (13),
the vacuum degree in the gas-liquid separation tank is 0-1000 mbar.
4. Liquid conveying device according to claim 3, characterized in that the airlift unit comprises an airlift (1), an air lift tube (4), a second compressed air inlet tube (2) and a liquid inlet tube (3);
the air lifter is arranged at the inlet of the air lifting pipe;
one end of the liquid inlet pipe (3) is connected with the air lifter, and the other end of the liquid inlet pipe extends into the liquid in the conveying tank;
said second compressed air inlet duct communicating with said airlift for providing second compressed air to the airlift;
the other end of the air lifting pipe is communicated with the gas-liquid separation tank.
5. A liquid delivery device according to claim 4, wherein the second compressed air has a pressure in the range 0.2-0.6MPa and a flow rate in the range 1-50Nm3/min。
6. The liquid delivery device of claim 4, further comprising an overflow tube,
one end of the overflow pipe is connected with the gas-liquid separation tank, and the other end of the overflow pipe extends into the conveying tank.
7. The liquid delivery device of claim 4, wherein the airlift unit further includes a solid feeder disposed on the liquid inlet tube and below the airlift.
8. The liquid delivery apparatus according to claim 4, wherein the airlift unit and the knock-out tank constitute a plurality of sets of transport modules, the plurality of sets of transport modules being arranged in series in sequence between the delivery tank and the liquid receiving tank.
9. A liquid transfer system comprising a transfer pot (5), characterized in that it further comprises a liquid transfer device according to any of claims 1-8.
10. The liquid delivery system of claim 9, further comprising a volume meter for metering the volume of liquid collected in the liquid receiving tank;
the liquid conveying system further comprises a controller, the controller is respectively electrically connected with the volume meter, the air lifting unit and the ejector unit, a preset liquid volume value is arranged in the controller and used for receiving a measured value sent by the volume meter, comparing the measured value with the preset liquid volume value arranged in the controller, and controlling the air lifting unit and the ejector unit to start and stop according to a comparison result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120136801.6U CN214790521U (en) | 2021-01-19 | 2021-01-19 | Liquid conveying device and liquid conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120136801.6U CN214790521U (en) | 2021-01-19 | 2021-01-19 | Liquid conveying device and liquid conveying system |
Publications (1)
| Publication Number | Publication Date |
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| CN214790521U true CN214790521U (en) | 2021-11-19 |
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| CN202120136801.6U Active CN214790521U (en) | 2021-01-19 | 2021-01-19 | Liquid conveying device and liquid conveying system |
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| CN (1) | CN214790521U (en) |
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- 2021-01-19 CN CN202120136801.6U patent/CN214790521U/en active Active
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