CN101424563A - Non-blind-zone electric contact level gage - Google Patents
Non-blind-zone electric contact level gage Download PDFInfo
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- CN101424563A CN101424563A CNA2008100515731A CN200810051573A CN101424563A CN 101424563 A CN101424563 A CN 101424563A CN A2008100515731 A CNA2008100515731 A CN A2008100515731A CN 200810051573 A CN200810051573 A CN 200810051573A CN 101424563 A CN101424563 A CN 101424563A
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Abstract
The invention provides a non-blank zone electric contact nilometer. The electrode of the non-blank zone electric contact nilometer has trimorphism of a high-impedance state, a middle-impedance state and a low-impedance state. When a middle-impedance ring (12) does not contact the water level, the electrode is in the high-impedance state; when the middle-impedance ring (12) contacts the water level, the electrode is in the middle-impedance state; and when a low-impedance ring (11) contacts the water level, the electrode is in the low-impedance state. The stable state of the non-blank zone electric contact nilometer is in the middle-impedance state. When the water level increases, the low-impedance state appears, the electrode moves upwards through a transmission system and a follow-up control system of a controller (21) so that the low-impedance ring (11) of the electrode recovers to the middle-impedance state off the water surface; vice versa, thereby the tracking measurement of the water level is realized. The non-blank zone electric contact nilometer has simple structure, and convenient regulation and control and use.
Description
Technical field
The present invention relates to non-blind-zone electric contact level gage.
Background technology
At present, the electric contact point fluviograph of application all has the region between the heart and the diaphragm district, and its structure is exactly in the outside of water level gauge measurement tube several electrodes to be installed; The characteristic of utilizing water to conduct electricity, the electrode that immerses in the water is a low resistance state, the electrode in the immersion is not a high-impedance state, by differentiating the resistance value size of electrode, then can realize the measurement to water level.The problem of this class water level gauge maximum has been measured the region between the heart and the diaphragm district exactly, owing to measure the existence in the region between the heart and the diaphragm district, it can seriously influence its accuracy and reliability of measuring water level.So-called measurement the region between the heart and the diaphragm district be exactly tested water level between two potential electrode, the electric contact water level can't be measured its exact value.(list of references: granary instrucment and meter plant product description)
Summary of the invention
In order to solve the problem that above-mentioned electric contact point fluviograph exists, the invention provides non-blind-zone electric contact level gage.
As shown in Figure 1, non-blind-zone electric contact level gage of the present invention has the volumetric cylinder 4 of measurement, and the upper and lower side of measuring volumetric cylinder 4 respectively has a water inlet pipe 29 and 24 to be connected with the boiler perforation respectively, makes and measures volumetric cylinder 4 and boiler composition linker;
Be equipped with the magnet steel 25 of annular in the cavity of the interior magnet steel sheath 26 of annular, the interior magnet steel sheath 26 of annular places above the magnet steel fixed mount 9, fixedlys connected with electrode set collar 10 below the magnet steel fixed mount 9;
Leading screw 13 places in the bearing 14, and outer steel 28 places in the outer steel ring jacket 27, and leading screw 13 is by an end of outer steel sheath assembly 17, and this outer steel sheath assembly 17 can move up and down at leading screw 13; There is a shaft joint 18 lower end of leading screw 13, and shaft joint 18 connects motor 19 again by motor shaft 31, and motor 19 is connected with scrambler 20 by arbor 32, and motor 19 is connected with controller 21 by lead again; Scrambler 20 is connected with secondary instrument 22 by lead; The A of hermetic terminal output terminal 1
1Input end A with controller 21
2Connect with lead;
This electrode has three resistance state characteristics of low resistance state, middle resistance state and high-impedance state, and said resistance state is meant the resistance value between electrode and the cylindrical shell.Central balk ring 12 is a high-impedance state when not touching water level; Central balk ring 12 is middle resistance state when touching water level; When low balk ring 11 touches water level, be low resistance state; The steady state (SS) of non-blind-zone electric contact level gage is middle resistance state, low resistance state occurs when water level rises, and will electrode be moved upward by controller 21, kinematic train and servomechanism, makes the low balk ring 11 of electrode break away from the water surface and returns to middle resistance state; Otherwise, also be the same, thereby realized the tracking measurement of water level; Accordingly, pointer 16 indicated water level height value on height of water level indicating gauge table 15 intuitively;
Described kinematic train comprises leading screw 13, leading screw and outer steel sheath assembly 17, shaft joint 18, motor 19, outer steel ring jacket 27 and outer steel 28;
Described servomechanism comprises balk ring 12, insulation tube 25, insulation tube 35 and insulation tube 45 in conducting ring 6, spring 7, spring set collar 8, interior magnet steel fixed mount 9, electrode set collar 10, the low balk ring 11 of electrode, the electrode;
Scrambler 20 output 4-20mA electric currents are given secondary instrument 22, wherein, and the corresponding lower limit of measuring the height of water level value of 4mA current value; The corresponding upper limit of measuring the height of water level value of 20mA current value; Secondary instrument 22 just can show the level measuring value accordingly, perhaps, can also be set in and provide alerting signal more arbitrarily in the scope of level measuring value.
Beneficial effect: because the electrode of non-blind-zone electric contact level gage of the present invention has the trimorphism of high-impedance state, middle resistance state and low resistance state.Central balk ring 12 is a high-impedance state when not touching water level; Central balk ring 12 is middle resistance state when touching water level; When low balk ring 11 touches water level, be low resistance state.The steady state (SS) of non-blind-zone electric contact level gage of the present invention is middle resistance state, low resistance state occurs when water level rises, and will electrode be moved upward by controller 21, kinematic train and servomechanism, makes the low balk ring 11 of electrode break away from the water surface and returns to middle resistance state; Otherwise, also be the same, thereby realized the tracking measurement of water level.It is simple in structure, and regulation and control and easy to use are measured accurately.
Description of drawings
Fig. 1 is the structural representation of no the region between the heart and the diaphragm region electrode point water level gauge provided by the invention.This figure also is a Figure of abstract.
Embodiment
Embodiment 1
As shown in Figure 1, non-blind-zone electric contact level gage of the present invention has the volumetric cylinder 4 of measurement, and the upper and lower side of measuring volumetric cylinder 4 respectively has a water inlet pipe 29 and 24 to be connected with the boiler perforation respectively, makes and measures volumetric cylinder 4 and boiler composition linker;
Be equipped with the magnet steel 25 of annular in the cavity of the interior magnet steel sheath 26 of annular, the interior magnet steel sheath 26 of annular places above the magnet steel fixed mount 9, fixedlys connected with electrode set collar 10 below the magnet steel fixed mount 9;
Leading screw 13 places in the bearing 14, and outer steel 28 places in the outer steel ring jacket 27, and leading screw 13 is by an end of outer steel sheath assembly 17, and this outer steel sheath assembly 17 can move up and down at leading screw 13; There is a shaft joint 18 lower end of leading screw 13, and shaft joint 18 connects motor 19 again by motor shaft 31, and motor 19 is connected with scrambler 20 by arbor 32, and motor 19 is connected with controller 21 by lead again; Scrambler 20 is connected with secondary instrument 22 by lead; The A of hermetic terminal output terminal 1
1Input end A with controller 21
2Connect with lead;
This electrode has three resistance state characteristics of low resistance state, middle resistance state and high-impedance state, and said resistance state is meant the resistance value between electrode and the cylindrical shell.Central balk ring 12 is a high-impedance state when not touching water level; Central balk ring 12 is middle resistance state when touching water level; When low balk ring 11 touches water level, be low resistance state; The steady state (SS) of non-blind-zone electric contact level gage is middle resistance state, low resistance state occurs when water level rises, and will electrode be moved upward by controller 21, kinematic train and servomechanism, makes the low balk ring 11 of electrode break away from the water surface and returns to middle resistance state; Otherwise, also be the same, thereby realized the tracking measurement of water level; Accordingly, pointer 16 indicated water level height value on height of water level indicating gauge table 15 intuitively;
Described kinematic train comprises leading screw 13, leading screw and outer steel sheath assembly 17, shaft joint 18, motor 19, outer steel ring jacket 27 and outer steel 28;
Described servomechanism comprises balk ring 12, insulation tube 25, insulation tube 35 and insulation tube 45 in conducting ring 6, spring 7, spring set collar 8, interior magnet steel fixed mount 9, electrode set collar 10, the low balk ring 11 of electrode, the electrode;
Scrambler 20 output 4-20mA electric currents are given secondary instrument 22, wherein, and the corresponding lower limit of measuring the height of water level value of 4mA current value; The corresponding upper limit of measuring the height of water level value of 20mA current value; Secondary instrument 22 just can show the level measuring value accordingly, perhaps, can also be set in and provide alerting signal more arbitrarily in the scope of level measuring value.
Claims (1)
1, non-blind-zone electric contact level gage is characterized in that, it is constructed as follows: measurement volumetric cylinder (4) is arranged, and the upper and lower side of measuring volumetric cylinder (4) respectively has a water inlet pipe (29) to be connected with the boiler perforation respectively with (24), makes and measures volumetric cylinder (4) and boiler composition linker; Hermetic terminal (2) is connected by insulation tube (5) with placing the conducting ring (6) of measuring volumetric cylinder (4) internal upper part, by fastening Luo bolt (3,30) hermetic terminal (2) is fixedlyed connected with measurement volumetric cylinder (4); Hermetic terminal output terminal (1) is connected with conducting ring (6) with lead by insulation tube (5); Conducting ring (6) is connected with spring set collar (8) by spring (7); Spring set collar (8) is connected with electrode electrode set collar (10) by insulation tube (25); Simultaneously, there is lead that the low balk ring (11) of spring set collar (8) and electrode is connected in the insulation tube (25); Electrode hangs down balk ring (11) mistake insulation tube (35) fixedlys connected with balk ring (12) in the electrode, with resistive conductor the low balk ring (11) of electrode is connected with balk ring (12) in the electrode in insulation tube (45); Be equipped with the magnet steel (25) of annular in the cavity of the interior magnet steel sheath (26) of annular, the interior magnet steel sheath (26) of annular places above the magnet steel fixed mount (9), and magnet steel fixed mount (9) is following fixedlys connected with electrode set collar (10); Leading screw (13) places in the bearing (14), and outer steel (28) places in the outer steel ring jacket (27), and leading screw (13) is by an end of outer steel sheath assembly (17), and this outer steel sheath assembly (17) can move up and down in leading screw (13); There is a shaft joint (18) lower end of leading screw (13), and shaft joint (18) connects motor (19) again by motor shaft (31), and motor (19) is connected with scrambler (20) by arbor (32), and motor (19) is connected with controller (21) by lead again; Scrambler (20) is connected with secondary instrument (22) by lead; (the A of hermetic terminal output terminal (1)
1) with the input end (A of controller (21)
2) connect with lead; Balk ring (12) is high-impedance state when not touching water level in the middle of this electrode tool; Central balk ring (12) is middle resistance state when touching water level; When low balk ring (11) is low resistance state when touching water level; The steady state (SS) of non-blind-zone electric contact level gage is middle resistance state, low resistance state occurs when water level rises, and will electrode be moved upward by controller (21), kinematic train and servomechanism, makes electrode hang down balk ring (11) the disengaging water surface and returns to middle resistance state; Otherwise, also be the same, thereby realized the tracking measurement of water level; Accordingly, pointer (16) can be gone up the indicated water level height value at height of water level indicating gauge (15) intuitively;
Described kinematic train comprises leading screw (13), leading screw and outer steel sheath assembly (17), shaft joint (18), motor (19), outer steel ring jacket (27) and outer steel (28);
Described servomechanism comprises balk ring (12), insulation tube (25), insulation tube (35) and insulation tube (45) in conducting ring (6), spring (7), spring set collar (8), interior magnet steel fixed mount (9), electrode set collar (10), the low balk ring (11) of electrode, the electrode;
Scrambler (20) output 4-20mA electric current is given secondary instrument (22), wherein, and the corresponding lower limit of measuring the height of water level value of 4mA current value; The corresponding upper limit of measuring the height of water level value of 20mA current value; Secondary instrument (22) just can show the level measuring value accordingly, perhaps, can also be set in and provide alerting signal more arbitrarily in the scope of level measuring value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100515731A CN101424563A (en) | 2008-12-10 | 2008-12-10 | Non-blind-zone electric contact level gage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100515731A CN101424563A (en) | 2008-12-10 | 2008-12-10 | Non-blind-zone electric contact level gage |
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| Publication Number | Publication Date |
|---|---|
| CN101424563A true CN101424563A (en) | 2009-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100515731A Pending CN101424563A (en) | 2008-12-10 | 2008-12-10 | Non-blind-zone electric contact level gage |
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| CN (1) | CN101424563A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121842A (en) * | 2010-11-30 | 2011-07-13 | 华侨大学 | Leachate height monitoring device for domestic waste landfill |
-
2008
- 2008-12-10 CN CNA2008100515731A patent/CN101424563A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121842A (en) * | 2010-11-30 | 2011-07-13 | 华侨大学 | Leachate height monitoring device for domestic waste landfill |
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Effective date of abandoning: 20090506 |
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