CN218348437U - Negative pressure conveying system of chemical centrifugal pump - Google Patents
Negative pressure conveying system of chemical centrifugal pump Download PDFInfo
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- CN218348437U CN218348437U CN202222226632.2U CN202222226632U CN218348437U CN 218348437 U CN218348437 U CN 218348437U CN 202222226632 U CN202222226632 U CN 202222226632U CN 218348437 U CN218348437 U CN 218348437U
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- centrifugal pump
- vacuum tank
- chemical centrifugal
- check valve
- negative pressure
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Abstract
The utility model discloses a chemical centrifugal pump negative pressure conveying system, include: the vacuum tank, the vacuum tank top be provided with air inlet and gas vent, the vacuum tank hypomere be the stock solution section, stock solution section sealing connection have a backflow pipeline, backflow pipeline on be provided with the interlocking control valve, the backflow pipeline on interlocking control valve right side on be provided with check valve one, vacuum tank bottom pass through the pipe connection chemical centrifugal pump, pass through the pipe connection chemical centrifugal pump on the left backflow pipeline of interlocking control valve, be provided with check valve two on the pipeline between chemical centrifugal pump and the backflow pipeline.
Description
Technical Field
The utility model relates to a chemical centrifugal pump conveying system especially relates to a chemical centrifugal pump negative pressure conveying system.
Background
At present, chemical centrifugal pumps are used in a plurality of conveying occasions, and in consideration of the conditions of a plurality of negative pressure conveying, when a whole set of system runs under negative pressure in the evaporation process, materials in a negative pressure system need to be pumped out through the pumps
However, in the process of implementing the technical solution of the utility model in the embodiment of the present application, it is found that the above-mentioned technology has at least the following technical problems: the chemical centrifugal pump that generally adopts takes place the cavitation easily, and the material can't normally be carried through the pump when serious, and during the material ejection of compact, takes place the phenomenon of flowing backward easily, makes its unable even ejection of compact.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a chemical centrifugal pump negative pressure conveying system, has solved the problem that flows backward appears in the material among the prior art, has realized normal transport, even ejection of compact.
The embodiment of the application provides a chemical centrifugal pump negative pressure conveying system, includes: vacuum tank, vacuum tank top be provided with air inlet and gas vent, the vacuum tank hypomere be the stock solution section, stock solution section sealing connection have a return line, the return line on be provided with the interlocking governing valve, the return line on interlocking governing valve right side on be provided with check valve one, vacuum tank bottom pass through pipe connection chemical centrifugal pump, pass through pipe connection chemical centrifugal pump on the left return line of interlocking governing valve, be provided with check valve two on the pipeline between chemical centrifugal pump and the return line.
Further, the secondary steam is conveyed into the vacuum tank through the air inlet, and the air in the vacuum tank is exhausted through the vacuum pumping device communicated with the air outlet.
Furthermore, the first check valve and the second check valve are one-way check valves, the material flow direction at the first check valve is towards the right, and the flow direction at the second check valve is towards the backflow pipeline at the chemical centrifugal pump.
Furthermore, the chemical centrifugal pump pumps the material in the vacuum tank into the return pipeline from the bottom of the vacuum tank, and the material in the return pipeline enters the vacuum tank again to achieve material circulation.
And the vacuum tank is internally provided with condensate.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
1. owing to adopted the backflow pipeline on interlocking governing valve right side on be provided with check valve one, vacuum tank bottom pass through pipe connection chemical centrifugal pump, pass through pipe connection chemical centrifugal pump on the left backflow pipeline of interlocking governing valve, be provided with check valve two on the pipeline between chemical centrifugal pump and the backflow pipeline, check valve one and check valve two be one-way check valve, so, effectively solved the phenomenon that the material can not appear flowing backward when the operation under the negative pressure, can the even ejection of compact.
2. Because adopted stock solution section sealing connection have a return line, the return line on be provided with the interlocking governing valve, the chemical centrifugal pump with the material of vacuum tank in the return line from vacuum tank bottom pump income return line, the material in the return line reentrants vacuum tank, reaches the material circulation, the material can flow along with the normal inner loop of pump.
Drawings
Fig. 1 is a specific structural diagram of the present application.
Detailed Description
This application has solved the problem that flows backward appears in the material among the prior art through providing a chemical centrifugal pump negative pressure conveying system, has realized normal transport, even ejection of compact.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments. A chemical centrifugal pump negative pressure conveying system comprises: vacuum tank 8, 8 tops of vacuum tank be provided with air inlet 1 and gas vent 2, 8 hypomere of vacuum tank be stock solution section 7, 7 sealing connection of stock solution section have backflow pipeline 9, backflow pipeline 9 on be provided with interlocking governing valve 3, backflow pipeline 9 on interlocking governing valve 3 right side on be provided with check valve 4, 8 bottoms of vacuum tank pass through pipe connection chemical centrifugal pump 6, pass through pipe connection chemical centrifugal pump 6 on the 3 left backflow pipeline 9 of interlocking governing valve, be provided with check valve two 5 on the pipeline between chemical centrifugal pump 6 and the backflow pipeline 9.
Further, the air inlet 1 conveys secondary steam into the vacuum tank 8, and the exhaust port 2 is communicated with a vacuumizing device to exhaust gas in the vacuum tank 8.
Furthermore, the first check valve 4 and the second check valve 5 are one-way check valves, the material flow direction at the first check valve 4 is rightward, and the flow direction at the second check valve 5 is from the chemical centrifugal pump 6 to the backflow pipeline 9.
Further, the chemical centrifugal pump 6 pumps the material in the vacuum tank 8 into the backflow pipeline 9 from the bottom of the vacuum tank 8, and the material in the backflow pipeline 9 enters the vacuum tank 8 again, so that material circulation is achieved.
And the vacuum tank 8 is internally provided with condensate.
Example one
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
prevent the material from flowing backwards and can evenly discharge the material.
Example two
Adopted 7 sealing connection of stock solution section have backflow pipeline 9, backflow pipeline 9 on be provided with interlocking governing valve 3, chemical centrifugal pump 6 with the material in the vacuum tank 8 from 8 bottom pump income backflow pipeline 9 in the vacuum tank, the material in the backflow pipeline 9 reentries vacuum tank 8, reaches the material circulation, the material can be along with the normal internal circulation flow of pump。
The specific implementation mode is as follows: when the chemical centrifugal pump 6 is installed, install one-way check valve in the vertical pipeline exit position of pump and liquid contact atmospheric pressure position, move chemical centrifugal pump 6 earlier before the equipment evacuation, close material output valve end, 9 valves of backflow pipeline are fully opened, make the material earlier along with the normal inner loop of pump flow, later carry out the evacuation to the system, make the system operation under the negative pressure, 3 ejection of compact of interlocking governing valve when the material reaches ejection of compact requirement, because the effect of horizontal ejection of compact pipeline check valve, the phenomenon that the material flows backward can not appear, can make its even ejection of compact.
While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (5)
1. A chemical centrifugal pump negative pressure conveying system comprises: vacuum tank, its characterized in that, vacuum tank top be provided with air inlet and gas vent, the vacuum tank hypomere be the stock solution section, stock solution section sealing connection have a backflow pipeline, the backflow pipeline on be provided with the interlocking governing valve, the backflow pipeline on interlocking governing valve right side on be provided with check valve one, vacuum tank bottom through pipe connection chemical centrifugal pump, through pipe connection chemical centrifugal pump on the left backflow pipeline of interlocking governing valve, be provided with check valve two on the pipeline between chemical centrifugal pump and the backflow pipeline.
2. The negative pressure conveying system of the chemical centrifugal pump as claimed in claim 1, wherein the air inlet conveys the secondary steam into the vacuum tank, and the air outlet is communicated with a vacuumizing device to exhaust air in the vacuum tank.
3. The negative pressure conveying system of the chemical centrifugal pump as claimed in claim 1, wherein the first check valve and the second check valve are one-way check valves, the material flow direction at the first check valve is rightward, and the flow direction at the second check valve is from the chemical centrifugal pump to the return pipeline.
4. The negative pressure conveying system of the chemical centrifugal pump as claimed in claim 1, wherein the chemical centrifugal pump pumps the material in the vacuum tank into the return pipe from the bottom of the vacuum tank, and the material in the return pipe enters the vacuum tank again to achieve material circulation.
5. The negative pressure conveying system of the chemical centrifugal pump as claimed in claim 1, wherein the vacuum tank is provided with condensate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222226632.2U CN218348437U (en) | 2022-08-24 | 2022-08-24 | Negative pressure conveying system of chemical centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222226632.2U CN218348437U (en) | 2022-08-24 | 2022-08-24 | Negative pressure conveying system of chemical centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218348437U true CN218348437U (en) | 2023-01-20 |
Family
ID=84916419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222226632.2U Active CN218348437U (en) | 2022-08-24 | 2022-08-24 | Negative pressure conveying system of chemical centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218348437U (en) |
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2022
- 2022-08-24 CN CN202222226632.2U patent/CN218348437U/en active Active
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