CN105485040B - A kind of vacuum checking device and detection method - Google Patents
A kind of vacuum checking device and detection method Download PDFInfo
- Publication number
- CN105485040B CN105485040B CN201510978589.7A CN201510978589A CN105485040B CN 105485040 B CN105485040 B CN 105485040B CN 201510978589 A CN201510978589 A CN 201510978589A CN 105485040 B CN105485040 B CN 105485040B
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- vacuum
- valve
- solenoid valve
- valves
- sensing chamber
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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
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a kind of vacuum checking device, suitable for negative pressure water suction occasion.Include inlet, bleeding point, cylinder, sensing chamber, exhaust pipe, check-valves, solenoid valve, hand-operated valve, detecting electrode, terminal box in the vacuum checking device structure.The invention also discloses the detection method of the device.The device is installed in the system for extracting vacuum, can detect the state being vacuum formed automatically, and instantaneously provide signal, for stopping power-equipment.Vacuum can be effectively formed and avoid liquid medium from entering follow-up pipeline and power-equipment.The device can effectively avoid the separation and recycling of raffinate, make easier system operation, safety, economy, cleaning.
Description
Technical field
The present invention relates to a kind of vacuum checking device and detection method, belongs to vacuum automation detection and control field, especially
Diversion and siphon filter vacuum water diversion are vacuumized suitable for centrifugal pump.
Background technology
The conveying pump of waterworks, frequently with centrifugal pump, needs to fill water in the pump housing before such pump operation.Therefore, stop
Conveying pump afterwards usually needs to vacuumize before being again started up, and discharges the air in the pump housing and pipeline.Siphon filter operational process is every
A cycle is also required to vacuum siphon system and siphon pipe is vacuumized.
In the occasion that both the above vacuumizes, it is both needed to extract air with vacuum pump.After opening vacuum pump, air is discharged,
Water is under atmospheric pressure along the flowing of pumping direction, until entering the pipeline vacuumized.Answering for vacuum is extracted in centrifugal pump
With occasion, after water is completely filled with the pump housing, you can stop pumping process, start centrifugal pump immediately；Vacuum is extracted in siphon filter
Application scenario, water, which is introduced into siphon pipe top, can stop pumping process, immediately pass through law of connected vessels complete precipitation mistake
Journey.
In the occasion that both the above vacuumizes, if stopping pumping process too early, equipment cisco unity malfunction；Stopping is crossed
Pumping process, then water enter vacuum suction pipeline, even up to vacuum pump was not only uneconomical, but also made to follow-up gas-liquid separation
Into difficulty, therefore, it is of great significance in appropriate position detection vacuum state for both application scenarios.
The content of the invention
In order to achieve the above object, the present invention provides a kind of vacuum checking device and detection method, vacuum can be detected
And signal is exported, and vacuum suction pipeline can be automatically shut down after being vacuum formed.
The solution of the present invention is as follows：A kind of vacuum checking device, including cylinder, the cylinder both ends set feed liquor respectively
Mouth and bleeding point；
Solenoid valve and check-valves are set in the cylinder；The check-valves is used to prevent from being evacuated after pumping process
Pipeline and liquid working pipeline connection, keep vacuum state；Vacuum suction pipeline is cut off during for being vacuum formed, preventing work to be situated between
Matter enters vacuum line；
The bleeding point is connected with solenoid valve one end, and the solenoid valve other end is connected with check-valves one end；It is described
The check-valves other end connected with inlet and form closed sensing chamber between the two, be detect vacuum place；
The indoor one group of detecting electrode of setting of the detection is connected with the terminal box outside cylinder, for detecting vacuum shape
State.
Further, hand-operated valve is set outside the cylinder, described hand-operated valve one end is connected with sensing chamber, and the other end is with taking out
Gas port is connected with the connecting pipeline of solenoid valve；Manually vacuum suction pipeline can be switched on or off when solenoid valve damages by valve,
Achieve the purpose that Emergency use.
Further, a pair of of detecting electrode sets length different, when sensing chamber's internal-filling liquid reaches 2/3, detection electricity
Pole is connected, and exports electric signal.
A kind of detection method of vacuum checking device, step are as follows：
When needing to extract vacuum, opens solenoid valve, vacuum checking device is a-road-through, and air is via inlet, inspection
Survey room, check-valves, solenoid valve, bleeding point enter exhaust pipe, by vacuum pumped；
Air, which extracts, to be finished when being vacuum formed, and working media enters sensing chamber via inlet, and it is electric to detect indoor detection
Pole turns on, and band moving electromagnetic valve is closed, and cuts off vacuum suction pipeline, and exports signal, for stopping vacuum pump and opening centrifugal pump；
When solenoid valve damages, electromagnetic valve work is replaced by hand-operated valve.
Apparatus of the present invention are installed in the system for extracting vacuum, can detect the state being vacuum formed automatically, and instantaneously
Signal is provided, for stopping power-equipment.Vacuum can be effectively formed and avoid liquid medium from entering follow-up pipeline and power
Equipment.The device can effectively avoid the separation and recycling of raffinate, make easier system operation, safety, economy, cleaning.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
Vacuum checking device of the present invention, inlet 1, bleeding point 2, cylinder 3, sensing chamber 4, pumping are included in structure
Pipeline 5, check-valves 6, solenoid valve 7, hand-operated valve 8, detecting electrode 9, terminal box 10.1 one end of inlet is communicated in device cylinder
Sensing chamber 4, the other end is vacuum suction pipeline beginning, be connected to need detect vacuum place use standard thread import.
2 one end of bleeding point is communicated in the solenoid valve 3 in device cylinder, and the other end is connected to vacuum pump by vacuum suction pipeline, uses
Standard thread import.
Cylinder is the shell of device critical piece.Size is about diameter 150mm, the tubular of high 200mm.Set in cylinder
Sensing chamber, exhaust pipe, check-valves, solenoid valve, detecting electrode.Sensing chamber 4 is a cavity, be detect vacuum place, the inside
Detecting electrode 9 is disposed, when sensing chamber's internal-filling liquid reaches 2/3, detecting electrode is connected, and exports electric signal.
Check-valves 6 is located at the rear end of sensing chamber on exhaust pipe.After for preventing pumping process exhaust pipe with
Liquid working pipeline connection, keeps vacuum state.Solenoid valve 7 is located at the rear end of check-valves on exhaust pipe.For vacuum shape
Into when cut off vacuum suction pipeline, prevent working media（Water）Into vacuum line.Hand-operated valve 8 is check-valves on exhaust pipe
With the bypass of solenoid valve.Manually vacuum suction pipeline can be switched on or off when solenoid valve damages by valve, reach emergent
The purpose used.
The method of work of apparatus of the present invention is as follows：When needing to extract vacuum, opens solenoid valve, vacuum checking device is
A-road-through, air enters exhaust pipe via 1 inlet, 4 sensing chamber, 6 check-valves, 7 solenoid valves, 2 bleeding points, by vacuum pumping
Go out.Air, which extracts, to be finished when being vacuum formed, working media（Water）Enter 4 sensing chamber via 1 inlet, detect indoor detection electricity
Pole turns on, and band moving electromagnetic valve is closed, and cuts off vacuum suction pipeline, and exports signal, for stopping vacuum pump and opening centrifugal pump.
When 7 solenoid valves damage, electromagnetic valve work is replaced by 8 hand-operated valves.
Although giving detailed description and explanation to the embodiment of the present invention above, it should be noted that
We can carry out the above embodiment various equivalent changes and modification according to the conception of the present invention, its caused function is made
, should all be within protection scope of the present invention during with the spirit still covered without departing from specification.
Claims (2)
1. a kind of vacuum checking device, including cylinder, it is characterised in that the cylinder both ends set inlet and pumping respectively
Mouthful；
The cylinder is diameter 150mm, the tubular of high 200mm；Solenoid valve and check-valves are set in cylinder；The check-valves
Exhaust pipe and liquid working pipeline connection, keep vacuum state after for preventing pumping process；Check-valves 6 is in exhaust tube
It is located at the rear end of sensing chamber on road, vacuum suction pipeline is cut off during for being vacuum formed, preventing working media from entering vacuum line；
The bleeding point is connected with solenoid valve one end, and the solenoid valve other end is connected with check-valves one end；Described stops
Return the valve other end to connect with inlet and form closed sensing chamber between the two, be the place for detecting vacuum；
The indoor one group of detecting electrode of setting of the detection is connected with the terminal box outside cylinder, for detecting vacuum state；
Hand-operated valve is set outside the cylinder, described hand-operated valve one end is connected with sensing chamber, the other end and bleeding point and electromagnetism
The connecting pipeline connection of valve；Manually vacuum suction pipeline can be switched on or off when solenoid valve damages by valve, and reaching emergent makes
Purpose；
One group of detecting electrode sets length different, and when sensing chamber's internal-filling liquid reaches 2/3, detecting electrode is connected, output
Electric signal.
2. the detection method of a kind of vacuum checking device according to claim 1, it is characterised in that step is as follows：
When needing to extract vacuum, opens solenoid valve, vacuum checking device is a-road-through, air via inlet, sensing chamber,
Check-valves, solenoid valve, bleeding point enter exhaust pipe, by vacuum pumped；
Air, which extracts, to be finished when being vacuum formed, and working media enters sensing chamber via inlet, detects indoor detecting electrode and leads
Logical, band moving electromagnetic valve is closed, and cuts off vacuum suction pipeline, and exports signal, for stopping vacuum pump and opening centrifugal pump；
When solenoid valve damages, electromagnetic valve work is replaced by hand-operated valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510978589.7A CN105485040B (en) | 2015-12-24 | 2015-12-24 | A kind of vacuum checking device and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510978589.7A CN105485040B (en) | 2015-12-24 | 2015-12-24 | A kind of vacuum checking device and detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105485040A CN105485040A (en) | 2016-04-13 |
| CN105485040B true CN105485040B (en) | 2018-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510978589.7A Active CN105485040B (en) | 2015-12-24 | 2015-12-24 | A kind of vacuum checking device and detection method |
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| Country | Link |
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| CN (1) | CN105485040B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644143A (en) * | 2018-03-27 | 2018-10-12 | 兰州空间技术物理研究所 | A kind of minipump pumping speed measuring device and method |
| CN108797619A (en) * | 2018-09-04 | 2018-11-13 | 中国建筑第二工程局有限公司 | Semi-vacuum pressure drop drainage pipe network and construction method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5536147A (en) * | 1994-08-26 | 1996-07-16 | Paco Pumps, Inc. | Vacuum priming system for centrifugal pumps |
| CN201363282Y (en) * | 2009-02-19 | 2009-12-16 | 上海梅山钢铁股份有限公司 | Evacuating device of centrifugal water pump |
| CN101903662A (en) * | 2007-12-20 | 2010-12-01 | 费斯托股份有限两合公司 | Vacuum generator device and method for operating the same |
| CN204371741U (en) * | 2014-11-27 | 2015-06-03 | 江苏唯达水处理技术有限公司 | A kind of vacuum water diversion control gear |
| CN104912813A (en) * | 2015-05-08 | 2015-09-16 | 湖南山源安自控系统有限公司 | Water and gas separation detection protection device for precisely judging water diversion state of mine draining pump |
| CN205297995U (en) * | 2015-12-24 | 2016-06-08 | 合肥敬业电子有限公司 | Vacuum test device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002147365A (en) * | 2000-11-08 | 2002-05-22 | Osaka Vacuum Ltd | Exhaust pressure control device of evacuation system |
-
2015
- 2015-12-24 CN CN201510978589.7A patent/CN105485040B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5536147A (en) * | 1994-08-26 | 1996-07-16 | Paco Pumps, Inc. | Vacuum priming system for centrifugal pumps |
| CN101903662A (en) * | 2007-12-20 | 2010-12-01 | 费斯托股份有限两合公司 | Vacuum generator device and method for operating the same |
| CN201363282Y (en) * | 2009-02-19 | 2009-12-16 | 上海梅山钢铁股份有限公司 | Evacuating device of centrifugal water pump |
| CN204371741U (en) * | 2014-11-27 | 2015-06-03 | 江苏唯达水处理技术有限公司 | A kind of vacuum water diversion control gear |
| CN104912813A (en) * | 2015-05-08 | 2015-09-16 | 湖南山源安自控系统有限公司 | Water and gas separation detection protection device for precisely judging water diversion state of mine draining pump |
| CN205297995U (en) * | 2015-12-24 | 2016-06-08 | 合肥敬业电子有限公司 | Vacuum test device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105485040A (en) | 2016-04-13 |
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Denomination of invention: Vacuum detection device and detection method Effective date of registration: 20190426 Granted publication date: 20180427 Pledgee: Anhui Feixi rural commercial bank Limited by Share Ltd small temple sub branch Pledgor: HEFEI DEDICATED ELECTRONICS CO., LTD. Registration number: 2019340000219 |
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Date of cancellation: 20200617 Granted publication date: 20180427 Pledgee: Anhui Feixi rural commercial bank Limited by Share Ltd. small temple sub branch Pledgor: HEFEI DEDICATED ELECTRONICS Co.,Ltd. Registration number: 2019340000219 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Vacuum detection device and detection method Effective date of registration: 20200622 Granted publication date: 20180427 Pledgee: Anhui Feixi rural commercial bank Limited by Share Ltd. small temple sub branch Pledgor: HEFEI DEDICATED ELECTRONICS Co.,Ltd. Registration number: Y2020980003356 |
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