CN212055160U - Automatic liquid extracting device of centrifugal pump - Google Patents
Automatic liquid extracting device of centrifugal pump Download PDFInfo
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- CN212055160U CN212055160U CN202020592535.3U CN202020592535U CN212055160U CN 212055160 U CN212055160 U CN 212055160U CN 202020592535 U CN202020592535 U CN 202020592535U CN 212055160 U CN212055160 U CN 212055160U
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- centrifugal pump
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Abstract
The utility model discloses an automatic liquid extraction device of centrifugal pump, including centrifugal pump, liquid storage pot and liquid storage tank, the import of centrifugal pump passes through the three-way pipe with the delivery outlet of liquid storage pot and is connected, the output fixedly connected with conveyer pipe of centrifugal pump, the fixed intercommunication of the other end of conveyer pipe has the metering tank, the backward flow mouth has been seted up to the measurement position of metering tank, backward flow mouth fixedly connected with back flow, the other end of back flow and the roof right-hand member fixed connection and the intercommunication of liquid storage pot, the roof left end fixedly connected with pipette of liquid storage pot. The utility model discloses set up a position liquid storage pot that is higher slightly before the centrifugal pump import, can keep being full of liquid in the centrifugal pump constantly, effectively solved the problem that current centrifugal pump needs artifical extract, convenient operation, when metering tank liquid surpasses metering portion simultaneously, accessible back flow flows back to the liquid storage pot in, overflows the metering tank when having avoided the liquid to carry the operation, also prevents that some industrial chemicals from spilling over and causing the potential safety hazard.
Description
Technical Field
The utility model relates to a carry liquid technical field, especially relate to an automatic liquid device that extracts of centrifugal pump.
Background
The centrifugal pump is one of the most commonly used liquid conveying pumps in various industrial production occasions, and the working principle of the centrifugal pump is mainly that an impeller in a pump cavity rotates at a high speed to generate centrifugal force so as to convey liquid out. When the centrifugal pump is started, the pump cavity must be filled with liquid to be delivered, otherwise, the centrifugal pump cannot work. In order to solve the problem, a common method is to install the centrifugal pump at a low position, so that the liquid level of the liquid to be conveyed is higher than the liquid inlet and outlet of the centrifugal pump, and the centrifugal pump is normally started to work when being filled with the liquid. However, in many cases, the installation of the centrifugal pump is inconvenient for installing the liquid inlet and the liquid outlet of the pump below the liquid level, and if water is pumped underground, the centrifugal pump needs to be filled with liquid and then started each time the centrifugal pump is started. Liquid is required to be added when the pump is started every time, which is very troublesome, and when the liquid level of the liquid to be conveyed is higher than the inlet position difference of the central pump, a large amount of liquid is required to be added, which is very inconvenient for the operation of the pump. In particular, in chemical production, some materials are not suitable for manual operation to fill liquid, and more difficulty is brought to starting the centrifugal pump.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problems in the background technology and providing an automatic liquid extracting device of a centrifugal pump.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an automatic liquid extraction device of centrifugal pump, includes centrifugal pump, liquid storage pot and liquid storage tank, the import of centrifugal pump passes through the three-way pipe with the delivery outlet of liquid storage pot and is connected, the output fixedly connected with conveyer pipe of centrifugal pump, the fixed intercommunication of the other end of conveyer pipe has the metering tank, the backward flow mouth has been seted up to the measurement position of metering tank, backward flow mouth fixedly connected with back flow, the other end of back flow and the roof right-hand member fixed connection and the intercommunication of liquid storage pot, the roof left end fixed connection of liquid storage pot has the pipette, the bottom in liquid storage tank is soaked to the other end of pipette, the other end of.
Preferably, a first pressure valve and a purge valve are respectively and fixedly arranged on the three-way pipe, and the purge valve is in a normally closed state.
Preferably, a second pressure valve is fixedly arranged on the return pipe.
Preferably, the volume of the liquid reservoir is twice that of the pipette.
Preferably, the liquid storage tank is actually placed with the bottom position higher than the inlet height of the centrifugal pump.
Preferably, the adapter ports of the three-way pipe are all filled with an anti-corrosion sealing layer.
Compared with the prior art, the automatic liquid extracting device of the centrifugal pump has the advantages that:
1. the liquid storage tank with a slightly higher position is arranged in front of the inlet of the centrifugal pump, so that the centrifugal pump can be constantly kept full of liquid, the problem that the conventional centrifugal pump needs manual liquid extraction is effectively solved, and the operation is convenient;
2. when the liquid in the metering tank exceeds the metering part, the liquid can flow back to the liquid storage tank through the return pipe, so that the liquid is prevented from overflowing the metering tank during liquid conveying operation, and potential safety hazards caused by the overflow of some chemical raw materials are also prevented;
to sum up, the utility model discloses set up a position liquid storage pot that is higher slightly before the centrifugal pump import, can keep being full of liquid in the centrifugal pump constantly, effectively solved the problem that current centrifugal pump needs artifical extract, convenient operation, when metering tank liquid surpasses metering portion simultaneously, accessible back flow flows back to the liquid storage pot in, overflows the metering tank when having avoided the liquid transportation operation, also prevents that some industrial chemicals from spilling over and causing the potential safety hazard.
Drawings
FIG. 1 is a schematic structural view of an automatic liquid extracting device of a centrifugal pump according to the present invention;
fig. 2 is a side view of a three-way pipe of the centrifugal pump automatic liquid extracting device provided by the utility model.
In the figure: 1 centrifugal pump, 2 delivery pipes, 3 metering tanks, 4 liquid storage tanks, 5 pressure valves I, 6 pressure valves II, 7 liquid storage tanks, 8 purge valves, 9 liquid suction pipes and 10 sealing layers.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1, an automatic liquid extracting device of a centrifugal pump comprises a centrifugal pump 1, a liquid storage tank 4 and a liquid storage tank 7, wherein an inlet of the centrifugal pump 1 is connected with an output port of the liquid storage tank 4 through a three-way pipe, an adapter port of the three-way pipe is filled with an anti-corrosion sealing layer 10, the bottom position of the liquid storage tank 4 is higher than the inlet height of the centrifugal pump 1 when the liquid storage tank is actually placed, a purge valve 8 is in a normally closed state, an output end of the centrifugal pump is fixedly connected with a conveying pipe 2, the other end of the conveying pipe 2 is fixedly communicated with a metering tank 3, a metering position of the metering tank 3 is provided with a backflow port, the backflow port is fixedly connected with a backflow pipe, a pressure valve II 6 is fixedly arranged on the backflow pipe, the other end of the backflow pipe is fixedly connected and communicated with the right end of the top wall of the, the other end of the three-way pipe is connected with a liquid suction pipe 9, a pressure valve I5 and a purge valve 8 are fixedly arranged on the three-way pipe respectively, when liquid conveying operation is started, a pressure valve II 6 is closed, the pressure valve I5 is opened, the centrifugal pump 1 is started, the liquid storage tank 4 is in a vacuum state, liquid in the liquid storage tank 7 is self-absorbed into the liquid storage tank 4, when the metering tank 3 meets the metering requirement, the centrifugal pump 1 is closed, liquid in the metering tank 3 exceeds the metering part and flows back into the liquid storage tank 4 through a return pipe, the overflow of the metering tank 3 during the liquid conveying operation is avoided, potential safety hazards caused by overflow of some chemical raw materials are also prevented, the pressure valve II 6 is opened finally, and the pressure.
The liquid storage tank 4 with a slightly higher position is arranged in front of the inlet of the centrifugal pump 1, so that the centrifugal pump 1 can be constantly kept full of liquid, the problem that the conventional centrifugal pump 1 needs manual liquid extraction is effectively solved, and the operation is convenient.
Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.
Now, the operation principle of the present invention is explained as follows:
when the liquid conveying operation is started, the pressure valve II 6 is closed, the pressure valve I5 is opened, the centrifugal pump 1 is started, the liquid storage tank 4 is in a vacuum state, liquid in the liquid storage tank 7 is self-absorbed into the liquid storage tank 4, when the metering tank 3 meets the metering requirement, the centrifugal pump 1 is closed, the liquid in the metering tank 3 exceeds the metering part and flows back into the liquid storage tank 4 through the return pipe, and finally, the pressure valve II 6 is opened, and the pressure valve I5 is closed.
Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides an automatic liquid extraction device of centrifugal pump, includes centrifugal pump (1), liquid storage pot (4) and liquid storage tank (7), its characterized in that, the import of centrifugal pump (1) is connected through the three-way pipe with the delivery outlet of liquid storage pot (4), the output fixedly connected with conveyer pipe (2) of centrifugal pump, the fixed intercommunication of the other end of conveyer pipe (2) has metering tank (3), the backward flow mouth has been seted up to the measurement position of metering tank (3), backward flow mouth fixedly connected with back flow, the other end of back flow and the roof right-hand member fixed connection and the intercommunication of liquid storage pot (4), the roof left end fixedly connected with pipette (9) of liquid storage pot (4), the other end of pipette (9) immerses the bottom of liquid storage tank (7), the other end of three-way pipe links to each other with pipette.
2. A centrifugal pump automatic liquid extracting device according to claim 1, wherein a first pressure valve (5) and a purge valve (8) are respectively fixed on the three-way pipe, and the purge valve (8) is in a normally closed state.
3. A centrifugal pump automatic pumping unit as claimed in claim 1, wherein a second pressure valve (6) is fixed to the return pipe.
4. A centrifugal pump automatic liquid extracting apparatus according to claim 1, wherein the volume of said liquid storage tank (4) is twice as large as that of the pipette (9).
5. An automatic pumping unit of a centrifugal pump according to claim 1, wherein the bottom of the liquid storage tank (4) is located higher than the inlet height of the centrifugal pump (1) when it is actually placed.
6. A centrifugal pump automatic liquid extracting device according to claim 1, wherein the adapter ports of the three-way pipe are filled with an anti-corrosion sealing layer (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020592535.3U CN212055160U (en) | 2020-04-20 | 2020-04-20 | Automatic liquid extracting device of centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020592535.3U CN212055160U (en) | 2020-04-20 | 2020-04-20 | Automatic liquid extracting device of centrifugal pump |
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| Publication Number | Publication Date |
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| CN212055160U true CN212055160U (en) | 2020-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020592535.3U Active CN212055160U (en) | 2020-04-20 | 2020-04-20 | Automatic liquid extracting device of centrifugal pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114178503A (en) * | 2021-11-17 | 2022-03-15 | 刘鹏 | Vacuum suction casting machine for rare earth metal |
| CN115192744A (en) * | 2022-05-23 | 2022-10-18 | 老肯医疗科技股份有限公司 | Liquid feeding transfer device for low-temperature plasma sterilizer |
-
2020
- 2020-04-20 CN CN202020592535.3U patent/CN212055160U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114178503A (en) * | 2021-11-17 | 2022-03-15 | 刘鹏 | Vacuum suction casting machine for rare earth metal |
| CN115192744A (en) * | 2022-05-23 | 2022-10-18 | 老肯医疗科技股份有限公司 | Liquid feeding transfer device for low-temperature plasma sterilizer |
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