CN110735802A - descaling device for running water ring vacuum pump - Google Patents
descaling device for running water ring vacuum pump Download PDFInfo
- Publication number
- CN110735802A CN110735802A CN201810798567.6A CN201810798567A CN110735802A CN 110735802 A CN110735802 A CN 110735802A CN 201810798567 A CN201810798567 A CN 201810798567A CN 110735802 A CN110735802 A CN 110735802A
- Authority
- CN
- China
- Prior art keywords
- vacuum pump
- water ring
- ring vacuum
- branch pipe
- air inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/18—Centrifugal pumps characterised by use of centrifugal force of liquids entrained in pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
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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 kinds of descaling devices for a water ring vacuum pump in operation, which comprises a water ring vacuum pump, wherein an air inlet pipe and a drain port are arranged on the water ring vacuum pump, the air inlet pipe is also connected with a branch pipe, the other end of the branch pipe is connected to a hydrochloric acid solution storage tank, an adjusting valve is arranged on the branch pipe, a liquid collecting tank is arranged at the drain port, and an online pH monitor is connected in the liquid collecting tank.
Description
Technical Field
The invention relates to the technical field of descaling of water ring vacuum pumps, in particular to descaling devices for water ring vacuum pumps in operation.
Background
In chemical production, a water ring vacuum pump device is adopted for gas compression and conveying , such as a hydrogen conveying device in chlor-alkali production and an acetylene gas conveying device in vinyl chloride production, however, most of conveying media are water-containing alkaline gas and parts of alkaline impurities, which easily causes impeller fouling in a water ring vacuum pump gas phase system, reduces rotor clearance, increases friction, causes current rise and efficiency reduction of the water ring vacuum pump, and even causes tripping due to load increase of the water ring vacuum pump, thus causing production accidents.
In actual production, the problems are solved by adopting a system to stop and switch a standby water ring vacuum pump, disassembling the scale-deposited equipment and adopting acid to soak for removal or manual physical descaling. But this results in a system that is not continuous and that is cumbersome to overhaul.
Disclosure of Invention
In order to solve the technical problems, the invention provides descaling devices for water ring vacuum pumps in operation, which have the advantages of good descaling effect, simple operation and strong practicability.
The technical scheme includes that the running water ring vacuum pump descaling device comprises a water ring vacuum pump, wherein an air inlet pipe and a drain port are arranged on the water ring vacuum pump, the air inlet pipe is further connected with a branch pipe, the other end of the branch pipe is connected to a hydrochloric acid solution storage tank, an adjusting valve is arranged on the branch pipe, a liquid collecting tank is arranged at the drain port, and a pH online monitor is connected in the liquid collecting tank.
, the regulating valve is a pneumatic regulating valve, and the pH on-line monitor is interlocked with the pneumatic regulating valve.
, the branch pipe is a CPVC pipe from the hydrochloric acid solution storage tank to the regulating valve section, the branch pipe between the regulating valve and the air inlet pipe is a fluorine lining pipe, and the pipe connected at the drain port is a fluorine lining pipe.
, the air inlet pipe is connected with an acetylene gas delivery pipeline, and an air inlet valve is arranged before the air inlet pipe is merged with the branch pipe.
, acid adding valves are arranged on both sides of the regulating valve on the branch pipe, and an acid outlet of the hydrochloric acid solution storage tank is provided with an acid outlet valve .
The water ring vacuum pump is negative pressure systems in the operation process, the hydrochloric acid solution enters the air inlet pipe of the water ring vacuum pump through the branch pipe, and the hydrochloric acid solution is mixed with alkaline impurities and alkaline water in a gas phase medium through the high-speed rotation of the impeller of the water ring vacuum pump and is subjected to acid-base neutralization, so that the alkaline impurities in the water ring vacuum pump can be removed.
Through set up pneumatic control valve on the branch pipe, interlock with the pH on-line monitoring appearance of liquid collecting vat, can be through the opening and close of the pH control governing valve of the liquid solution who monitors for water ring vacuum pump is inside all the time to be neutral system, avoids impeller and the inside scaling of pump.
Through adopting above-mentioned device, can prolong the operation cycle of equipment, the continuous production nature of system is strong, still can carry out gaseous transport when adding sour descaling, easy operation, the practicality is strong, can realize the descaling of each subassembly of water ring vacuum pump in the operation.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The invention will be further illustrated with reference to examples and drawings, but the scope of the invention as claimed is not limited to the examples.
As shown in figure 1, kinds of water ring vacuum pump scale removal devices in operation, including water ring vacuum pump 1, be equipped with intake pipe 2 and row clean mouth 3 on it, intake pipe 2 still is connected with branch pipe 4, and the end of branch pipe is connected to hydrochloric acid solution storage tank 5 in addition, is equipped with governing valve 8 on the branch pipe 4, arranges clean mouth 3 department and is equipped with liquid collecting tank 6, and liquid collecting tank 6 in-connection has pH on-line monitoring appearance 7.
In a preferred scheme, the regulating valve is a pneumatic regulating valve, and the pH on-line monitor 7 and the pneumatic regulating valve are arranged in an interlocking manner. The pneumatic regulating valve is a fluorine lining regulating valve.
, the branch pipe is a CPVC pipeline from the hydrochloric acid solution storage tank 5 to the regulating valve section, the branch pipe between the regulating valve and the air inlet pipe is a fluorine lining pipeline, and the pipeline connected with the drain port is a fluorine lining pipeline.
, the air inlet pipe 2 is connected with an acetylene gas delivery pipeline, and an air inlet valve is arranged before the air inlet pipe is merged with the branch pipe.
The utility model discloses operation step in the reality:
a. and in the operation of the water ring vacuum pump, opening an acid adding pipeline acid adding valve of the water ring vacuum pump, checking whether the pneumatic regulating valve is normal or not, and checking whether the pH on-line monitor and the interlocking of the pH on-line monitor and the pneumatic regulating valve are normal or not.
b. And carrying out emptying operation on the water ring vacuum pump according to the required liquid level in the water ring vacuum pump, and discharging redundant liquid.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (5)
- The descaling device for the water ring vacuum pump in operation is characterized by comprising a water ring vacuum pump (1), wherein an air inlet pipe (2) and a drainage port (3) are arranged on the water ring vacuum pump, the air inlet pipe (2) is further connected with a branch pipe (4), the other end of the branch pipe is connected to a hydrochloric acid solution storage tank (5), an adjusting valve is arranged on the branch pipe (4), a liquid collecting tank (6) is arranged at the drainage port (3), and a pH online monitor (7) is connected in the liquid collecting tank (6).
- 2. The apparatus of claim 1, wherein: the regulating valve is a pneumatic regulating valve, and the pH on-line monitor (7) and the pneumatic regulating valve are arranged in an interlocking manner.
- 3. The apparatus of claim 1, wherein: the branch pipe is a CPVC pipeline from the hydrochloric acid solution storage tank (5) to the regulating valve section, the branch pipe between the regulating valve and the air inlet pipe is a fluorine lining pipeline, and the pipeline connected with the drain port is a fluorine lining pipeline.
- 4. The device according to claim 1, wherein an acetylene gas delivery pipeline is connected to the air inlet pipe (2), and an air inlet valve is arranged before the air inlet pipe and the branch pipe are merged.
- 5. The device of claim 1, wherein the branch pipe is provided with an acid adding valve on both sides of the regulating valve, and an acid outlet of the hydrochloric acid solution storage tank (5) is provided with an acid outlet valve .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810798567.6A CN110735802A (en) | 2018-07-19 | 2018-07-19 | descaling device for running water ring vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810798567.6A CN110735802A (en) | 2018-07-19 | 2018-07-19 | descaling device for running water ring vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110735802A true CN110735802A (en) | 2020-01-31 |
Family
ID=69235173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810798567.6A Pending CN110735802A (en) | 2018-07-19 | 2018-07-19 | descaling device for running water ring vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110735802A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145426A (en) * | 2020-09-21 | 2020-12-29 | 淄博双环真空泵厂 | Vacuum water ring combination pump |
-
2018
- 2018-07-19 CN CN201810798567.6A patent/CN110735802A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145426A (en) * | 2020-09-21 | 2020-12-29 | 淄博双环真空泵厂 | Vacuum water ring combination pump |
| CN112145426B (en) * | 2020-09-21 | 2022-02-01 | 淄博双环真空泵厂 | Vacuum water ring combination pump |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200131 |