CN2627485Y - Fluid medium leakage detection device - Google Patents
Fluid medium leakage detection device Download PDFInfo
- Publication number
- CN2627485Y CN2627485Y CN 03262499 CN03262499U CN2627485Y CN 2627485 Y CN2627485 Y CN 2627485Y CN 03262499 CN03262499 CN 03262499 CN 03262499 U CN03262499 U CN 03262499U CN 2627485 Y CN2627485 Y CN 2627485Y
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- utility
- pressure switch
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- solenoid valves
- programmable controller
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Abstract
The utility model discloses a device for detecting and controlling the leakage of a fluid medium flowing in a definite zone. The fluid medium mentioned in the utility model refers to liquids or gases flowing in one direction. The utility model comprises two solenoid valves arranged at two ends of a test zone, a detecting device arranged in a test pipeline between the two solenoid valves, and a device for controlling the two solenoid valves under the feedback produced by the detecting device. Based on the existing W-DK/03 detecting device, the utility model is improved by changing the prior relay into the pressure switch and utilizing the signals produced by the pressure switch as feedback signals to control the solenoid valves.
Description
Technical field
The utility model relates to a kind of device that detects and control for the fluid media (medium) leakage situation that flows in the definite interval.The fluid media (medium) of the utility model indication refers to the liquid or the gas of uniflux.The utility model comprises the solenoid valve that is positioned at tested interval two ends, is located at the proving installation on the tested pipeline between two solenoid valves, and produces the device that feedback is used to control two solenoid valves by proving installation.
Background technology
Leakage in a certain interval detects to flow media, and particularly the leak case that inflammable and explosive medium is entered the firing chamber detects and control is very important.For example to the combustion apparatus of combustion gas or fuel oil, as leak, may cause major accident.Therefore must detect it, the shutoff system that also must take appropriate measures, as take when leakage is arranged stops measures such as igniting.
Chinese invention patent application 01121554.2 discloses on a kind of zone that is arranged between two valves, the device that this interval liquid amount of leakage is detected, but this patented claim only can be applicable to the detection of liquid medium, and this on the other hand technical scheme does not have the condition of taking measures on customs clearance.
China's utility model patent 98215371.6 discloses a kind of lever system that utilizes and can the amount of leakage of liquid or gas medium have been detected, and has the device of warning function.This apparatus structure is comparatively complicated; On the other hand, this device in use need be adjusted the leakage value of setting by the professional, and this makes its application be subjected to certain restriction; From the situation of this Patent publish, its reliability is relatively poor relatively, and it only can provide a kind of alarm, and the operating personnel that still need operate accordingly according to warning, so its security neither be very good.
Also has a kind of W-DK/03 type leakage detection apparatus in the prior art, it is at detected interval two ends solenoid valve to be set, on the tested interval between two solenoid valves, establish a pressure switch, in use at first close the solenoid valve of fluid upstream, utilize the inner blower of burner to purge at tested interval low-pressure area that forms, again with the closed electromagnetic valve of downstream fluid, utilize pressure switch to check whether low-pressure area exists, if low-pressure area exists, the solenoid valve of then opening tested interval downstream fluid again is about 2 seconds, close this solenoid valve again, if tested interval pressure does not drop to the prior setting value of pressure switch in the time of setting, then prove tested interval nothing leakage, otherwise leakage is then arranged, keep two solenoid valves to be in closed condition simultaneously, make combustion apparatus can not start operation.The use of W-DK/03 type leakage detection apparatus is comparatively complicated, and needs the volume of professional according to detected interval, sets Preset Time in advance, and it obviously is very difficult that this user for no professional uses.Even on the other hand for the applying unit that the professional is arranged, also may cause device work can not be in normal condition because of the artificial or unexpected reason of professional.
Summary of the invention
The utility model is a kind of novel fluid media (medium) Leak Detection control device that can overcome the prior art deficiency, and the use that it can simplification device provides safe and reliable detection, but and simultaneous adaptation do not have professional's user.
The utility model simply says it is to improve on the basis of W-DK/03 pick-up unit, pressure switch of the prior art is changed to pressure switch, and utilizes pressure switch to produce signal as the work of feedback signal control electromagnetic valve.
Of the present utility modelly produce the device that feedback is used to control two solenoid valves by proving installation and can adopt touch-screen, perhaps adopt single-chip microcomputer, perhaps adopt other microprocessor.
The designer thinks that the utility model preferably feeds back as being produced by proving installation with programmable controller, is used to control the device of two solenoid valves.Link to each other with programmable controller with pressure switch, by the detection control program control electromagnetic valve work that in programmable controller, weaves in advance.
The DG150 that the pressure switch that adopts in the specific embodiment of the utility model is produced for Germany, and used programmable controller has been selected RD100 for use, this can make device that minimum cost is arranged, and best implementation result is arranged simultaneously.
In device of the present utility model owing to be to adopt pressure switch as detecting element, as long as leak in detected interval, will cause the pressure switch action, and no longer need the professional that device is set in advance, so the utility model can satisfy no professional's unit use.On the other hand, because of the utility model has adopted programmable controller, make use of the present utility model possess robotization characteristics, its operation is not only very simple, and Detection ﹠ Controling are all very reliable.By accompanying drawing also as can be known, texture ratio prior art of the present utility model, particularly the device that is provided than Chinese utility model patent 98215371.6 is more simple.
Description of drawings
Accompanying drawing 1 is a synoptic diagram of the present utility model, and accompanying drawing 2 is the used RD100 programmable controller wiring schematic diagram of the utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is further explained orally.
Referring to accompanying drawing 1, the upstream and downstream in detected interval respectively has solenoid valve 1 and solenoid valve 2, and detected interval of the present utility model comprises described two solenoid valves 1 and 2.Be provided with pressure switch 3 in the detected interval between two solenoid valves.Used pressure switch 3 is the DG150 type pressure switch that Germany produces in the present embodiment, can certainly select homemade similar pressure switch for use.The switch termination of pressure switch 3 produces the device 4 that feedback is used to control two solenoid valves by proving installation.It is used in the present embodiment that to be used for producing the device 4 that feedback is used to control two solenoid valves by proving installation are programmable controllers.The input end of programmable controller 4, the output terminal of programmable controller 4 connect the control end of two electromagnetic switch 1 and 2 respectively.In most preferred embodiment of the present utility model, used programmable controller 4 models are RD100.
Referring to accompanying drawing 2, programmable controller wiring of the present utility model is: terminals 6 connect the leak detection instruction, and terminals 7 connect pressure switch, and terminals 8 connect solenoid valve 1, and terminals terminals 9 connect solenoid valve 2, and terminals 5 and 6 connect power supply.
It is as follows to preestablish the prosecution principle in programmable controller 4:
------pressure switch transfers closure to by disconnection---close upstream electrical magnet valve 2 and delayed time 30 seconds---judges pressure switch 3 actions: if pressure switch 3 disconnects to open upstream electrical magnet valve 2 for input leak detection instruction; then leak detection failure; output signal makes; downstream electrical magnetic switch 1 and 2 turn-offs; halt system work: if pressure switch 3 remains closed; then------pressure switch 3 transfers disconnection to by closure---close downstream electrical magnetic switch 1 and delayed time 30 seconds---judges the action of pressure switch to open downstream electrical magnetic switch 1: if pressure switch transfers closure to by disconnection; then leak detection failure; output signal makes; downstream electrical magnetic switch 1 and 2 turn-offs; halt system work: if pressure switch protection off-state; then show not have and leak; export tested interval non-fault signal, perhaps output signal makes equipment enter operating condition.
To can make the utility model realize its function by the program input programmable controller 3 of above prosecution principle establishment.
By above introduction as can be known the utility model in when work, as long as the tested interval variation that will cause interval internal pressure that takes place to leak, and this small pressure variation will make the pressure switch action, and the volume in the action of pressure switch and tested interval (generally being one section pipeline), and the leakage of each solenoid valve is all irrelevant.Therefore, working sensitivity of the present utility model is high, nor needs artificial setting.
Of the present utility modelly produce the device 4 that feedback is used to control two solenoid valves by proving installation and also can adopt touch-screen, perhaps comprise the microprocessor of single-chip microcomputer.But its cost will be high slightly when adopting this class device.
Claims (4)
1, a kind of fluid media (medium) leak detecting device, comprise the solenoid valve that is positioned at tested interval two ends, be located between two solenoid valves tested pipeline on proving installation, and produce the device that feedback is used to control two solenoid valves by proving installation, it is characterized in that described proving installation is a pressure switch.
2, a kind of fluid media (medium) leak detecting device according to claim 1, the device that it is characterized in that producing feedback is a programmable controller.
3, a kind of fluid media (medium) leak detecting device according to claim 2 is characterized in that used programmable controller is the RD100 programmable controller.
4, according to claim 1 or 2 or 3 described a kind of fluid media (medium) leak detecting devices, it is characterized in that used pressure switch model is DG150.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03262499 CN2627485Y (en) | 2003-07-07 | 2003-07-07 | Fluid medium leakage detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03262499 CN2627485Y (en) | 2003-07-07 | 2003-07-07 | Fluid medium leakage detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2627485Y true CN2627485Y (en) | 2004-07-21 |
Family
ID=34255620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03262499 Expired - Fee Related CN2627485Y (en) | 2003-07-07 | 2003-07-07 | Fluid medium leakage detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2627485Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1940795B (en) * | 2005-09-30 | 2010-10-13 | 3M新设资产公司 | Fluid controlling device and method |
| CN102052997A (en) * | 2009-11-03 | 2011-05-11 | 通用电气公司 | Method and system for fluid valve leak detection |
| WO2011054198A1 (en) * | 2009-11-03 | 2011-05-12 | 重庆山外山科技有限公司 | Leak detecting system of solenoid valve in blood purification |
| CN102723815A (en) * | 2011-03-29 | 2012-10-10 | 淮南矿业(集团)有限责任公司 | System and method for detecting cooling pipeline of motor |
| CN104456090A (en) * | 2014-11-13 | 2015-03-25 | 宁夏中远天宇科技有限公司 | Pressure alarming system for underground heat distribution pipeline leakage |
| CN104515656A (en) * | 2013-09-29 | 2015-04-15 | 天津台信检测技术有限公司 | Turbocharger tube detecting system |
| CN111059587A (en) * | 2018-10-17 | 2020-04-24 | 宁波方太厨具有限公司 | Central flue system and sealing state detection method thereof |
| CN111059588A (en) * | 2018-10-17 | 2020-04-24 | 宁波方太厨具有限公司 | Central flue system and sealing state detection method thereof |
-
2003
- 2003-07-07 CN CN 03262499 patent/CN2627485Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1940795B (en) * | 2005-09-30 | 2010-10-13 | 3M新设资产公司 | Fluid controlling device and method |
| CN102052997A (en) * | 2009-11-03 | 2011-05-11 | 通用电气公司 | Method and system for fluid valve leak detection |
| WO2011054198A1 (en) * | 2009-11-03 | 2011-05-12 | 重庆山外山科技有限公司 | Leak detecting system of solenoid valve in blood purification |
| CN102052997B (en) * | 2009-11-03 | 2014-08-13 | 通用电气公司 | Method and system for fluid valve leak detection |
| CN102723815A (en) * | 2011-03-29 | 2012-10-10 | 淮南矿业(集团)有限责任公司 | System and method for detecting cooling pipeline of motor |
| CN104515656A (en) * | 2013-09-29 | 2015-04-15 | 天津台信检测技术有限公司 | Turbocharger tube detecting system |
| CN104456090A (en) * | 2014-11-13 | 2015-03-25 | 宁夏中远天宇科技有限公司 | Pressure alarming system for underground heat distribution pipeline leakage |
| CN111059587A (en) * | 2018-10-17 | 2020-04-24 | 宁波方太厨具有限公司 | Central flue system and sealing state detection method thereof |
| CN111059588A (en) * | 2018-10-17 | 2020-04-24 | 宁波方太厨具有限公司 | Central flue system and sealing state detection method thereof |
| CN111059588B (en) * | 2018-10-17 | 2021-10-01 | 宁波方太厨具有限公司 | Central flue system and sealing state detection method thereof |
| CN111059587B (en) * | 2018-10-17 | 2021-10-01 | 宁波方太厨具有限公司 | Central flue system and sealing state detection method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |