CN205483175U - Boiler drum liquid level meter - Google Patents
Boiler drum liquid level meter Download PDFInfo
- Publication number
- CN205483175U CN205483175U CN201521139131.4U CN201521139131U CN205483175U CN 205483175 U CN205483175 U CN 205483175U CN 201521139131 U CN201521139131 U CN 201521139131U CN 205483175 U CN205483175 U CN 205483175U
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- China
- Prior art keywords
- steel sleeve
- rustless steel
- level
- boiler drum
- nonrust steel
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model discloses a boiler drum liquid level meter, including outer flotation pontoon and capacitive sensor, capacitive sensor include the nonrust steel sleeve who sets up a plurality of through -holes on it, fixedly set up in nonrust steel sleeve and keep the spaced extremely excellent with nonrust steel sleeve inner wall, with nonrust steel sleeve head end fixed connection's instrument bin, wherein, nonrust steel sleeve's tail end seal by the bottom, the bottom will with the bottom plate of instrument bin extremely excellent clamping position in nonrust steel sleeve, with extremely excellent fixed connection's utmost point pole pass the bottom plate get into inside the instrument bin, extremely excellent with the utmost point pole all with bottom plate and nonrust steel sleeve insulating. The utility model discloses with extremely excellent setting in nonrust steel sleeve, can effectively improve holistic collision resistance intensity, effectively improve whole life, reduce use cost. Simultaneously, adopt utmost point stick tip set up the screw hole and will utmost point pole with the connected mode of extremely excellent spiro union, whole equipment is convenient, the stability height.
Description
Technical field
This utility model relates to chemical industry, electric power, hydraulic engineering technical field, particularly relates to a kind of boiler vapour
Bag liquidometer.
Background technology
Steam water-level is an important parameter in boiler operatiopn, and observation and the measurement to steam water-level, except people
Outside work manual observation, an also closed loop being made up of waterworks, measuring instruments and level sensor exactly
Monitoring system, greatly but also slightly carelessness may result in accident to manual observation not only labor intensity, especially for
The artifical water height phenomenon of drum, relies on artificial way to be difficult to judgement, and supervisory system of closed can overcome above-mentioned
Problem, this is accomplished by a reliablely and stablely level sensor.
Boiler drum liquid-level is the properly functioning required level transmitting instrument of boiler.Based on capacitive measuring principle
The boiler drum liquid-level of linker structure be the New-type boiler liquid level of steam drum meter occurred in recent years, Fig. 1
It show existing capacitance level gauge structural representation.As it is shown in figure 1, drum 1 and measuring cylinder 5 are passed through
Vapour side probe tube 2 connects with lateral water sampling tube 7, in measuring cylinder capacitance sensor 6 by adpting flange 4 with
Transmitter 3 connects.
Its fundamental measurement principle is: the aqueous water in boiler-steam dome is an electrode of electric capacity, capacitance sensing
Device is another one electrode, so forms a cylindrical capacitor.When the liquid water level in boiler-steam dome becomes
During change, the respective change of electric capacity can be caused, liquid level can be measured accordingly.
The boiler drum liquid-level of linker structure based on capacitive measuring principle is better than traditional differential pressure type boiler
Liquid level of steam drum meter, has liquid level under full working scope condition (operating mode such as boiler opens, stops, blowdown) and surveys the most continuously
Control function；The electric contact boiler drum liquid-level of the most traditional linker structure, is no longer " step " letter
Number output, but continuous print signal output.But in concrete operating mode, can produce huge in drum and measuring cylinder
Big impact, is easily caused capacitance sensor damaged, affects service life.Meanwhile, capacitance sensor is exposed
Easily fouling outside, will produce bigger error to measurement result.
Utility model content
The purpose of this utility model is for technological deficiency present in prior art, and provides a kind of boiler vapour
Bag liquidometer.
Be the technical scheme is that by realizing the purpose of this utility model
A kind of boiler drum liquid-level, is provided with upper connecting tube and the outer floating drum of lower connecting tube including sidepiece, with
The capacitance sensor of connection fixed by described outer floating drum, and described capacitance sensor includes offering on it multiple
The rustless steel sleeve of through hole, be fixedly installed in rustless steel sleeve and and rustless steel sleeve lining keep interval
Extremely rod, fixes the instrument bin being connected, wherein, described rustless steel sleeve with described rustless steel sleeve head end
Tail end closed by bottom, the base plate of bottom and instrument bin by described extremely rod clamping position at rustless steel sleeve
In, enter inside instrument bin with the described fixing pole bar being connected of extremely rod through described base plate, described pole
Rod and pole bar all with described base plate and rustless steel hub insulation.
Described extremely rod includes the barred body being made of ceramic materials and is integrally disposed upon barred body center and with described
The excellent core that pole bar connects.
Described ceramic material is corundum ceramic.
Described is extremely provided with super heated rubber pad between rod tail end and bottom.
Offer through hole on described bottom, described super heated rubber pad offers corresponding through hole.
The described through hole on rustless steel sleeve is spaced Boulez in groups, and often group through hole includes that the major diameter of centre is led to
Hole and two the minor diameter through holes being arranged on the axial both sides of rustless steel sleeve.
The upper connecting tube of described outer floating drum and the end of lower connecting tube are respectively arranged with adpting flange.
The upper end of described rustless steel sleeve is fixing with the top board of described outer floating drum to be connected.
The top of described rustless steel sleeve is provided with external screw thread, its be fixedly installed on and the top board of outer floating drum
The connection dish on top is screwed connection.
Described outer floating drum bottom is provided with blow-off pipe, is provided with blowoff valve on described blow-off pipe.
Compared with prior art, the beneficial effects of the utility model are:
Extremely rod is arranged in rustless steel sleeve by this utility model, can be effectively improved the impact strength of entirety,
It is effectively improved whole service life, reduces use cost.Meanwhile, employing is threaded hole in caput end, pole
And by pole bar and the connected mode that extremely rod is spirally connected, overall package is convenient, stability is high.
Accompanying drawing explanation
Fig. 1 show existing capacitance level gauge structural representation；
Fig. 2 show use view of the present utility model；
Fig. 3 show capacitor sensor structure schematic diagram of the present utility model.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is described in further detail.Should be appreciated that
Specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
As shown in Figures 2 and 3, boiler drum liquid-level of the present utility model includes that sidepiece is provided with connecting tube
11 with lower connecting tube 12 with the outer floating drum 10 connected with HP steam drum, fixing with described outer floating drum 10 be connected
Capacitance sensor 20, described capacitance sensor 20 includes the rustless steel sleeve offering multiple through hole on it
21, the extremely rod 22 being fixedly installed in rustless steel sleeve, made barred body and not as used by corundum ceramic material
The extremely rod of rust rod iron core composition, described in extremely rod is centrally positioned in rustless steel sleeve and with described rustless steel
Sleeve lining keeps interval, also includes fixing, with described rustless steel sleeve head end, the instrument bin 24 being connected, its
In, described stainless tail end refers to insert one end of outer floating drum, and head end refers to solid with outer floating drum roof
Fixed one end connected, the base plate 24 of described instrument bin 23 is in order to carry described instrument bin and to assist pole
Rod location.The tail end of described rustless steel sleeve is closed by bottom 25, and bottom and base plate 24 are by described pole
Rod clamping position, in rustless steel sleeve, is fixed with described extremely rod and is connected, if the pole bar 26 being spirally connected is through institute
The central through hole of the base plate stated enters instrument bin using the connection pole as extremely rod, described extremely rod and pole bar all with
Described base plate and rustless steel hub insulation.Wherein, instrument one input being fixedly installed in instrument bin
Connecting with described pole bar, another pole connects with the cavity wall of instrument bin, outside described instrument bin and outer floating drum
Wall connect, described outer floating drum outer wall ground connection, so can realize another input end grounding of instrument, this with
Prior art is similar to, and does not repeats them here.
Specifically, be use elevated-temperature seal insulating cement is poured into rustless steel sleeve head end and base plate in and shape
Becoming barrier layer, accomplish rustless steel sleeve, base plate and extremely rod, the insulation of pole bar, insulating cement carries out insulated barriers
While can improve the stability of position relationship between the two.Certainly, it is possible to adopt and insulate in other ways
Process, as by insulative pipe sleeve or felt pad etc..
Extremely rod is arranged in rustless steel sleeve by this utility model, can be effectively improved the impact strength of entirety,
It is effectively improved whole service life, reduces use cost.Meanwhile, employing is threaded hole in caput end, pole
And by pole bar and the connected mode that extremely rod is spirally connected, overall package is convenient, stability is high.
Further, it is provided with on the bottom described in super heated rubber pad 27 between described extremely excellent tail end and bottom
Offer through hole, described super heated rubber pad offers corresponding through hole.Bottom through-hole formula designs
Can guarantee that liquid enters smoothly, super heated rubber pad then can be effectively improved the shockproof properties of entirety.
Specifically, for improving the smoothness in liquid entrance rustless steel sleeve, on described rustless steel sleeve
Through hole 28 groups interval Boulez, often group through hole includes the diameter through hole of centre and is arranged on two of its both sides
Minor diameter through hole.
Wherein, because the extremely outside mode arranging rustless steel sleeve of rod, its bulk strength increases, described not
The upper end of rust steel bushing is fixing with the top board 13 of described outer floating drum to be connected, i.e. part rustless steel sleeve is exposed
Outside outside floating drum.Specifically, the top of described rustless steel sleeve is provided with external screw thread, and it is with solid
Surely it is arranged on the connection dish on the top board top with outer floating drum to be screwed connection.Will the base plate of instrument bin with outer
What floating drum top board was spaced is arranged on its top, effectively reduces the high temperature impact on instrument bin so that it is adapt to
The operating temperature of up to 780 DEG C, and the operating pressure of up to 20MPa can be used, it is effectively increased it and fits
Use environment.
For ease of connecting, upper connecting tube and the lower connecting tube end of described outer floating drum are respectively arranged with connection method
Blue.Meanwhile, described outer floating drum bottom is provided with blow-off pipe 14, is provided with blowdown on described blow-off pipe
Valve 15, utilizes the setting of blow-off pipe, is prevented effectively from impurities left in it, number when improving service life and use
According to degree of accuracy.
When specifically used, being fixed in instrument bin by sensor, capacitance variations is converted into telecommunications by sensor
Number and be sent to transmitter 30, the signal of telecommunication is passed to each controller or terminal, this and prior art by transmitter
Similar, the most reinflated description at this.
The above is only preferred implementation of the present utility model, it is noted that lead for this technology
For the those of ordinary skill in territory, on the premise of without departing from this utility model principle, it is also possible to make some
Improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (10)
1. a boiler drum liquid-level, it is characterised in that include that sidepiece is provided with connecting tube and lower connection
The outer floating drum of pipe, fixes, with described outer floating drum, the capacitance sensor being connected, and described capacitance sensor includes
Offer the rustless steel sleeve of multiple through hole on it, be fixedly installed in rustless steel sleeve and with rustless steel sleeve
Inwall keeps the extremely rod at interval, fixes the instrument bin being connected, wherein, institute with described rustless steel sleeve head end
The tail end of the rustless steel sleeve stated is closed by bottom, and bottom and the base plate of instrument bin are by fixed for described extremely rod clamping
Position, in rustless steel sleeve, enters instrument bin with the described fixing pole bar being connected of extremely rod through described base plate
Inside, described extremely rod and pole bar all with described base plate and rustless steel hub insulation.
2. boiler drum liquid-level as claimed in claim 1, it is characterised in that described extremely rod include by
The barred body that ceramic material is made and be integrally disposed upon barred body center the excellent core being connected with described pole bar.
3. boiler drum liquid-level as claimed in claim 2, it is characterised in that described ceramic material is
Corundum ceramic.
4. the boiler drum liquid-level as described in any one of claim 1-3, it is characterised in that described pole
It is provided with super heated rubber pad between rod tail end and bottom.
5. boiler drum liquid-level as claimed in claim 4, it is characterised in that offer on described bottom
There is through hole, described super heated rubber pad offers corresponding through hole.
6. boiler drum liquid-level as claimed in claim 1, it is characterised in that described rustless steel sleeve
On through hole be spaced Boulez in groups, often group through hole includes the diameter through hole of centre and is arranged on rustless steel sleeve
Axially two minor diameter through holes of both sides.
7. boiler drum liquid-level as claimed in claim 1, it is characterised in that described outer floating drum upper
The end of connecting tube and lower connecting tube is respectively arranged with adpting flange.
8. boiler drum liquid-level as claimed in claim 1, it is characterised in that described rustless steel sleeve
The top board of upper end and described outer floating drum fixing be connected.
9. boiler drum liquid-level as claimed in claim 8, it is characterised in that described rustless steel sleeve
Top be provided with external screw thread, it is screwed with the connection dish on the top board top being fixedly installed on outer floating drum
Connect.
10. boiler drum liquid-level as claimed in claim 1, it is characterised in that described outer floating drum bottom
It is provided with blow-off pipe, described blow-off pipe is provided with blowoff valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521139131.4U CN205483175U (en) | 2015-12-30 | 2015-12-30 | Boiler drum liquid level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521139131.4U CN205483175U (en) | 2015-12-30 | 2015-12-30 | Boiler drum liquid level meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205483175U true CN205483175U (en) | 2016-08-17 |
Family
ID=56662449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521139131.4U Active CN205483175U (en) | 2015-12-30 | 2015-12-30 | Boiler drum liquid level meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205483175U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588888A (en) * | 2017-10-18 | 2018-01-16 | 合肥智旭仪表有限公司 | A kind of liquid level gauge for being used for water conservancy hydrology osmotic pressure and level measuring |
| CN107957283A (en) * | 2017-12-29 | 2018-04-24 | 北京晨淼科技有限公司 | Boiler liquid level measuring system and boiler liquid level measuring method |
| CN110645558A (en) * | 2019-10-29 | 2020-01-03 | 上海大众祥源动力供应有限公司 | Boiler water level monitoring device |
-
2015
- 2015-12-30 CN CN201521139131.4U patent/CN205483175U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588888A (en) * | 2017-10-18 | 2018-01-16 | 合肥智旭仪表有限公司 | A kind of liquid level gauge for being used for water conservancy hydrology osmotic pressure and level measuring |
| CN107957283A (en) * | 2017-12-29 | 2018-04-24 | 北京晨淼科技有限公司 | Boiler liquid level measuring system and boiler liquid level measuring method |
| CN110645558A (en) * | 2019-10-29 | 2020-01-03 | 上海大众祥源动力供应有限公司 | Boiler water level monitoring device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |