CN203175824U - Oil return resistant control system of vacuum holding pump - Google Patents
Oil return resistant control system of vacuum holding pump Download PDFInfo
- Publication number
- CN203175824U CN203175824U CN 201320204629 CN201320204629U CN203175824U CN 203175824 U CN203175824 U CN 203175824U CN 201320204629 CN201320204629 CN 201320204629 CN 201320204629 U CN201320204629 U CN 201320204629U CN 203175824 U CN203175824 U CN 203175824U
- Authority
- CN
- China
- Prior art keywords
- vacuum
- pump
- holding pump
- oil
- vacuum holding
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
An oil return resistant control system of a vacuum holding pump comprises a vacuum detector, an oil booster pump, a PLC (Programmable Logic Controller), a vacuum holding pump, a high-vacuum stop valve and a man-machine operating interface. The vacuum detector is installed on a pipeline of the oil booster pump and is connected to the PLC through a signal line; the vacuum holding pump is connected to the oil booster pump through a vacuum pipeline; the high-vacuum stop valve is installed between the vacuum holding pump and the oil booster pump; the high-vacuum stop valve and the vacuum holding pump are connected to the PLC through signal lines; and the PLC is connected to the man-machine operating interface. The oil return resistant control system of the vacuum holding pump has the advantages of preventing vacuum oil of the vacuum holding pump from being sucked back into the pipeline of the oil booster pump in a vacuum manner, guaranteeing long-term steady work of the oil booster pump of a vacuum self-consuming furnace and avoiding equipment accident caused by oil shortage running of the vacuum holding pump through the control of the high-vacuum stop valve.
Description
Technical field
The utility model relates to vacuum system control technique field, is the anti-oil return control system of a kind of vacuum holding pump specifically.
Background branch art
The vacuum oil suction booster of consumable electrode vacuum furnace vacuum oil be not heated to require temperature before, when perhaps not vacuumizing work, must use a vacuum holding pump that the vacuum pressure in the oily suction booster pipeline is maintained below the 1.5mbar.And in oily suction booster was found time working procedure, the vacuum holding pump must quit work.In long-term using process, because the one-way valve of vacuum holding pump suction port is poorly sealed, after holding pump shuts down, vacuum suck-back phenomenon can take place, vacuum oil in the holding pump can be by the vacuum suck-back to the pipeline of oily suction booster, cause the vacuum holding pump to damage because of oil starvation, or the special-purpose vacuum oil of oily suction booster is contaminated and cause vacuumizing poor effect, device security and production are caused harmful effect.
The model utility content
At the problem of above-mentioned existence, the utility model provides a kind of and prevents the vacuum suck-back, guarantees the anti-oil return control system of vacuum holding pump of equipment stable operation.
The technical solution of the utility model is: the vacuum holding pump is prevented the oil return control system, comprise vacuum detector, oily suction booster, PLC controller, vacuum holding pump, high vacuum stop valve, man machine operation interface, it is characterized in that: vacuum detector is installed on the pipeline of oily suction booster, and links to each other with the PLC controller by signaling line; The vacuum holding pump links to each other with oily suction booster by vacuum pipe, and the high vacuum stop valve is installed between vacuum holding pump and the oily suction booster, and the high vacuum stop valve links to each other with the PLC controller by signaling line with the vacuum holding pump, and the PLC controller links to each other with man machine operation interface.
Advantage of the present utility model: this device is by the control of high vacuum stop valve, the vacuum oil that prevents the vacuum holding pump by the vacuum suck-back to the pipeline of oily suction booster, guarantee the oily suction booster long-term stable operation of consumable electrode vacuum furnace, avoid the vacuum holding pump to cause equipment accident because of the oil starvation operation.
Description of drawings
Fig. 1 is control system structural representation of the present utility model.
Embodiment
Now by reference to the accompanying drawings, the utility model is further specified.
As shown in Figure 1, vacuum detector is installed on the pipeline of oily suction booster, and links to each other with the PLC controller by signaling line; The vacuum holding pump links to each other with oily suction booster by vacuum pipe, and the high vacuum stop valve is installed between vacuum holding pump and the oily suction booster, and the high vacuum stop valve links to each other with the PLC controller by signaling line, and the PLC controller links to each other with man machine operation interface.
Embodiment: vacuum detector is installed on the oily suction booster pipeline, the vacuum pressure value is converted to digital quantity or analog amount electrical signal, and pass the signal to the PLC controller; The high vacuum stop valve is installed between vacuum holding pump and the oily suction booster, behind the high vacuum stop valve stopping, can guarantee that pipeline does not have leakage; The PLC controller is by the state signal of vacuum detector and vacuum holding pump, automatically the opening and closing of control high vacuum stop valve guarantee the vacuum holding pump when shutting down, because the vacuum seal performance of high vacuum stop valve is superior, can not produce leakage, therefore can not produce vacuum suck-back phenomenon yet; Man machine operation interface can obtain operating state and the pipeline vacuum actual value of vacuum holding pump, oily suction booster, high vacuum stop valve by the PLC controller, operator also can send control signal by man machine operation interface, directly control the action of vacuum holding pump and high vacuum stop valve; Man machine operation interface adopts industrial computer, and the configuration software that can communicate by letter with the PLC controller is installed.
Claims (1)
1. the vacuum holding pump is prevented the oil return control system, comprise vacuum detector, oily suction booster, PLC controller, vacuum holding pump, high vacuum stop valve, man machine operation interface, it is characterized in that: vacuum detector is installed on the pipeline of oily suction booster, and links to each other with the PLC controller by signaling line; The vacuum holding pump links to each other with oily suction booster by vacuum pipe, and the high vacuum stop valve is installed between vacuum holding pump and the oily suction booster, and the high vacuum stop valve links to each other with the PLC controller by signaling line with the vacuum holding pump, and the PLC controller links to each other with man machine operation interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320204629 CN203175824U (en) | 2013-04-22 | 2013-04-22 | Oil return resistant control system of vacuum holding pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320204629 CN203175824U (en) | 2013-04-22 | 2013-04-22 | Oil return resistant control system of vacuum holding pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203175824U true CN203175824U (en) | 2013-09-04 |
Family
ID=49072527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320204629 Expired - Lifetime CN203175824U (en) | 2013-04-22 | 2013-04-22 | Oil return resistant control system of vacuum holding pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203175824U (en) |
-
2013
- 2013-04-22 CN CN 201320204629 patent/CN203175824U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203175824U (en) | Oil return resistant control system of vacuum holding pump | |
| CN205091098U (en) | Fuel tank cap gas tightness automatic checkout device | |
| CN204436889U (en) | Circulation pipe is with the canned motorpump of filter | |
| CN205158158U (en) | Nitrogen seals automatic control device | |
| CN203067224U (en) | Compressor oil feeding device | |
| CN204198395U (en) | A kind of additive liquid device | |
| CN203526790U (en) | Projection point welding machine comprising safe emergency stop device | |
| CN204387461U (en) | Anti-down water suction device before a kind of vacuum pump | |
| CN203756654U (en) | Hydraulic oil pressure control and oil recycling device | |
| CN103990426B (en) | Nitrogen-seal protection system | |
| CN205762124U (en) | A kind of spray robot synchronous fixture device | |
| CN204511511U (en) | A kind of mining dewatering installation | |
| CN204985135U (en) | Novel ladle lift synchro control device | |
| CN204595166U (en) | Power transformer flow relay vacuum on-line measuring device | |
| CN203830006U (en) | Nitrogen sealed protection system | |
| CN203834533U (en) | Lifting and limiting device of loader movable arm | |
| CN205270739U (en) | Automatic dock vacuous device | |
| CN203868040U (en) | Ball valve oil pressure control system | |
| CN204087010U (en) | Automatic Water-level Control Device | |
| CN204082714U (en) | Coke oven machine furnacing door lifting hydraulic control system | |
| CN204221459U (en) | A kind of novel lathe | |
| CN203906323U (en) | Automatic seal oil injection control device of high-temperature double-support centrifugal pump | |
| CN203594648U (en) | Cleaning control device for hydraulic test system | |
| CN204286722U (en) | A kind of automatic control vacuumize pilot system | |
| CN204294200U (en) | Polymeric kettle sealing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 97, Qianming Road, Qingshan Community, Deshan Street, Changde Economic and Technological Development Zone, Changde City, Hunan Province, 415001 Patentee after: Hunan Xiangtou Jintian Titanium Technology Co., Ltd. Address before: 415001 Changde Economic and Technological Development Zone, Changde City, Hunan Province Patentee before: HUNAN GOLDSKY TITANIUM INDUSTRY TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130904 |