CN2227822Y - Electrical contact water level detecting probe - Google Patents
Electrical contact water level detecting probe Download PDFInfo
- Publication number
- CN2227822Y CN2227822Y CN 94236213 CN94236213U CN2227822Y CN 2227822 Y CN2227822 Y CN 2227822Y CN 94236213 CN94236213 CN 94236213 CN 94236213 U CN94236213 U CN 94236213U CN 2227822 Y CN2227822 Y CN 2227822Y
- Authority
- CN
- China
- Prior art keywords
- electrode
- probe
- water level
- ripple cover
- head
- 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 - Fee Related
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model discloses a high precision electrical contact water level detecting probe, which is provided with a wave-proof sleeve on the surrounding of electrodes and used for the water level detection and control of an electrically heating steam boiler. The shielding structure principle is used to result in a relatively stable part liquid level for the detection and control of the electrode, the electrode fouling and the interference of the liquid level fluctuation can be reduced, the precision of the detection and control can be improved, and the period of the maintenance work to the probe is prolonged.
Description
The utility model relates to the fluid level planar survey with popping one's head in.
Before this, be used for the Liquid level test probe of electric heating steam generator only with cock head and electrode formation.Electrode is established 1-3 usually.One pole type probe is surveyed as the single-point surface level.Ambipolar probe can be made the two point surface level and survey, and being convenient to directly control needs the water yield of replenishing in the boiler, improves degree of accuracy.It also can be made the single-point surface level and survey control usefulness, and this moment, another utmost point was made the usefulness of the independent warning utmost point.The triple-pole type probe is to be used as the two point surface level to survey in the control on ambipolar probe basis, opens up the independent warning of utmost point do separately and uses.Above-mentioned any one detection extremely all can be used as the double warning of detection extremely uses, and cooperate with external control circuit and do the instant alarming prompting, or the lack of water accident will appear in the delayed alarm warning.The electrode of these probes all is operated in the boiling-house, causes malfunctioningly because of incrustation easily, rise and fall because of liquid level in addition, and serious interference, the precision of its mensuration and control is very low, and maintenance workload is big, and maintenance period was generally 20-30 days.
The purpose of this utility model is to provide a kind of improved electric contact water level detecting probe.Cause the more stable local liquid level power supply utmost point to survey the usefulness of control with the shielding construction principle, it can reduce electrode incrustation and liquid fluctuating disturbs, and improves and surveys control commentaries on classics degree, prolongs the probe maintenance work cycle.
Electric contact water level detecting probe after the improvement, constitute by cock head and 1-3 electrodes, it is characterized in that exploring electrode or electrode group around also be provided with one electrode hood at the anti-ripple cover centre and that be connected with the cock head, anti-ripple puts near the connecting portion place and is provided with a gas port at least.
The preferably interior receipts of the following head of anti-ripple cover also are provided with less damping inlet opening.
Under the long situation of electrode, one or more porous support plate or net grid can be set in the electrode middle part, make electrode in anti-ripple cover, obtain locating, prevent because of deformation by taking.
Compared with the prior art the utility model has following good effect:
1. owing to prevent the shielding action of ripple cover, the water surface around the electrode is more steady, and particularly after adopting the damping inlet opening, the interference that boiled water causes can obtain getting rid of basically, thereby has improved water-level detecting and control inflow precision.The precision of working control water level can reach 1-5 millimeters.
2. adopt fluoroplastic cover multiple (not comprising its head) on wire electrode, its incrustation influence obviously reduces, and the maintenance period of probe was extended to more than half a year.
Now be described further in conjunction with embodiment of the present utility model and accompanying drawing thereof.
Fig. 1 is the sonde configuration synoptic diagram.
Fig. 2 is that probe is installed in the working state figure in the boiler.
Referring to Fig. 1, it is 7 integrally welded that the cock 1 and the anti-ripple of probe overlaps, lower limit level electrode 2, upper limit level electrode 3 and warning electrode 4 are by electrode pressing plate 5, O-ring seal 6, through compressing, sealing is fixed in the cock 1, and electrode is become with fluoroplastic sleeve or coset by stainless steel wire, two is exposed, and the glue shutoff can be used in the gap between pipe.Between electrode and the position in anti-ripple cover is supported the location according to the needs of electrode length with one or several porous support plates 9 or net grid, prevent because of deformation by taking.One or several gas ports 8 are established in the close place in an anti-ripple cover 7 and a cock welding position.Head preferably will be received in the running-on below the anti-ripple cover, adopts blanking cover 10 among the figure, is provided with damping inlet opening 11 in the middle of the lid.Damping inlet opening 11 constitutes and extraneous connected relation with gas port 8.Make the inside and outside water level of probe have the consistance of measuring on the meaning, and the liquid level in the probe is comparatively tranquil, the water level precision that detects is higher, when supplying water by external control circuit control water pump, in time the water yield of replenishing is also more accurate, to stablizing the water temperature in the boiler and outwards the steam vapour pressure of air feed is also just more stable.From its application, for example be used for clothes ironing work, to improving work quality the means that ensure have more reliably just been arranged also.The anti-fluctuation damping of above-mentioned anti-ripple cover can be provided with one or more lateral inflow hole 12 and adjusts by overlapping at anti-ripple on the 7 head end sideway stances.
Shown in Figure 2, be mounted with the probe 14 of vertical setting on the boiler 13, the electrothermal tube 15 of horizontally set also has the mouth of a river in addition, and the mouth of a river does not add in the drawings and marks.Probe 14 is thin rod shape, and installation site of the head of anti-wave tube is lower than electrothermal tube 15 below it, can avoid like this steam bubble from the damping inlet opening or the lateral inflow hole enter electrode and cause interference.Surface level in the boiler 13 is roughly concordant with the naked pin of upper limit level electrode position, helps trouble free service and operate as normal like this.Vapor pressure during work in the boiler is generally selected on the level of 5 kg/cm.The control contact of drawing from probe electrode and cock head is access to control circuit, controls water pump again toward moment of boiler water-filling amount and what according to the operating mode during different level in the boiler that electrode reflected conversely, and control is reported to the police, and controls electrothermal tube work.
Getting anti-ripple cover internal diameter is φ 11, and the damping inlet opening is φ 3, and high-order, low position electrode head height difference is 5 (millimeters), electrothermal tube power is 9KW, under this pacing items, the height of water level scope of controlled water pump inflow reflection is stabilized between 1-5 (millimeters), and effect is fine.
Claims (4)
1, a kind of electric contact water level detecting probe, constitute by cock head (1) and 1 to 3 electrode, its feature around exploring electrode or electrode group (2,3,4), also be provided with one electrode hood at anti-ripple cover (7) centre and that be connected with cock head (1), anti-ripple cover (7) is gone up near the connecting portion place and is provided with a gas port (8) at least.
2, probe as claimed in claim 1 is characterized in that preferably interior receipts of following head of anti-ripple cover, and less damping inlet opening (11) is set.
3, probe as claimed in claim 1 is characterized in that also being provided with one or more in the anti-ripple cover 7 is the porous support plate (9) that prevents to do because of the long deformation of electrode location usefulness.
4, probe as claimed in claim 1 is characterized in that anti-ripple cover (7) head end sideway stance is provided with the lateral inflow hole (12) that one or more are used to adjust the fluctuation damping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94236213 CN2227822Y (en) | 1994-12-29 | 1994-12-29 | Electrical contact water level detecting probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94236213 CN2227822Y (en) | 1994-12-29 | 1994-12-29 | Electrical contact water level detecting probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2227822Y true CN2227822Y (en) | 1996-05-22 |
Family
ID=33844244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94236213 Expired - Fee Related CN2227822Y (en) | 1994-12-29 | 1994-12-29 | Electrical contact water level detecting probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2227822Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320338C (en) * | 2004-06-04 | 2007-06-06 | 刘瑞 | Three end type water level electrode |
| CN102858471A (en) * | 2010-04-15 | 2013-01-02 | 阿尔弗雷德·凯驰两合公司 | Steam-cleaning device |
| CN103842722A (en) * | 2011-12-22 | 2014-06-04 | 三浦工业株式会社 | Boiler |
| CN104568054A (en) * | 2014-12-11 | 2015-04-29 | 中国核电工程有限公司 | Liquid level sensor of heating type differential thermal resistor and liquid level measuring method thereof |
| CN104568053A (en) * | 2014-12-11 | 2015-04-29 | 中国核电工程有限公司 | Self-heating differential thermoresistor liquid level sensor and liquid level measurement method thereof |
-
1994
- 1994-12-29 CN CN 94236213 patent/CN2227822Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320338C (en) * | 2004-06-04 | 2007-06-06 | 刘瑞 | Three end type water level electrode |
| CN102858471A (en) * | 2010-04-15 | 2013-01-02 | 阿尔弗雷德·凯驰两合公司 | Steam-cleaning device |
| CN102858471B (en) * | 2010-04-15 | 2014-11-19 | 阿尔弗雷德·凯驰两合公司 | Steam-cleaning device |
| CN103842722A (en) * | 2011-12-22 | 2014-06-04 | 三浦工业株式会社 | Boiler |
| CN103842722B (en) * | 2011-12-22 | 2015-11-25 | 三浦工业株式会社 | Boiler |
| CN104568054A (en) * | 2014-12-11 | 2015-04-29 | 中国核电工程有限公司 | Liquid level sensor of heating type differential thermal resistor and liquid level measuring method thereof |
| CN104568053A (en) * | 2014-12-11 | 2015-04-29 | 中国核电工程有限公司 | Self-heating differential thermoresistor liquid level sensor and liquid level measurement method thereof |
| CN104568054B (en) * | 2014-12-11 | 2018-11-20 | 中国核电工程有限公司 | A kind of heated type difference thermal resistance liquid level sensor and its method for measuring liquid level |
| CN104568053B (en) * | 2014-12-11 | 2018-11-20 | 中国核电工程有限公司 | A kind of self-heating difference thermal resistance liquid level sensor and its method for measuring liquid level |
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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 |