CN207540623U - High-precision mica water-level gauge - Google Patents
High-precision mica water-level gauge Download PDFInfo
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- CN207540623U CN207540623U CN201721680097.0U CN201721680097U CN207540623U CN 207540623 U CN207540623 U CN 207540623U CN 201721680097 U CN201721680097 U CN 201721680097U CN 207540623 U CN207540623 U CN 207540623U
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Abstract
The utility model patent discloses a kind of high-precision mica water-level gauge, and converging device, drainpipe, blow-off pipe, down-comer, lateral vapour side opening by drum, vapour side probe tube, lateral water sampling tube, vapour side valve door, water side valve door, vapour side valve door connecting tube, water side valve door connecting tube, the threeway of vapour side, balance pipe, the threeway of water side, vapour side connecting tube, water side connecting tube, drainer, table body, mica component, gland, thermal compensation hole, carbonated drink intercommunicating pore, heat tracing forms.Three thermal compensation holes being arranged in table body are less than two carbonated drink intercommunicating pores leading point from table body from the leading point in table body, eliminate water column density deviation caused by level measuring in carbonated drink intercommunicating pore, cause the water level in level measuring hole under any operating mode all close to the real water level in drum, achieve the purpose that precisely to monitor steam water-level, therefore the invention is known as high-precision mica water-level gauge；The leading point in three thermal compensation holes is not take up level measuring range simultaneously, increases level measuring range and visual range.
Description
Technical field
The present invention relates to a kind of high-precision mica water-level gauges, are the measuring devices of boiler drum level, belong to boiler matching
Product.
Background technology
Power plant boiler steam water-level is for ensureing that the safety and economic operation of Turbo-generator Set has vital meaning
Justice.Steam water-level is too low, may result in a series of Tube failures safety problems such as even " dryout pot ", cause shut down, blowing out
Etc. serious consequences；On the other hand, if steam water-level is excessively high, steam turbine may be caused to break into vapour band water, generation cavitation or shafting
The serious problems such as split.So the accurate monitoring automatic in real time to steam water-level ensures drum safe and stable operation, sent out for realizing
The highly effective and safe economical and energy saving optimization operation of motor group is extremely important precondition and guarantee means.
Mica water-level gauge is a kind of instrument applied on boiler drum or on other pressure vessels, for monitoring SEA LEVEL VARIATION
Table is to be made according to the principle of linker, by principles such as the reflections, refraction, perspective of light, gas phase is made to take on a red color, liquid phase is in
Green, the variation that operations staff can be immediately seen water level inside water-level gauge judge water level in drum.
Briefly introduce existing low-deviation mica water level gauge for steam drum water level, such as Patent No.
The utility model patent of ZL200320127482.4 and ZL201620918725.3.As shown in Figure 1 and Figure 2, by drum (1), vapour side
Probe tube (2), lateral water sampling tube (3), vapour side valve door (4), water side valve door (5), vapour side valve door connecting tube (6), water side valve door connect
Take over (7), vapour side threeway (8), balance pipe (9), water side threeway (10), vapour side connecting tube (11), water side connecting tube (12), condensation
Tank (13), table body (14), mica component (15), gland (16), thermal compensation hole (17), carbonated drink intercommunicating pore（18）, heat tracing converge dress
(19), drainpipe (20), blow-off pipe (21), down-comer (22) composition are put, operation principle is as follows：
1st, the saturated water in drum (1) passes through lateral water sampling tube (3), water side valve door (5), water side valve door connecting tube (7), water
Side threeway (10), water side connecting tube (12) are into the carbonated drink intercommunicating pore (18) in table body (14)；Saturated vapor in drum (1) leads to
Cross vapour side probe tube (2), vapour side valve door (4), vapour side valve door connecting tube (6), vapour side threeway (8), vapour side connecting tube (11) entrance
Carbonated drink intercommunicating pore (18) in table body (14) exists into the saturated water in the carbonated drink intercommunicating pore (18) of table body (14) and saturated vapor
This mixing, according to the principle of linker, line of demarcation is the water level in the drum (1) measured.
2nd, since under the conditions of uniform pressure, the density of water is increased with the reduction of temperature, residing for mica water-level gauge
Environment temperature is more much lower than the temperature in drum (1), and the water level in carbonated drink intercommunicating pore (18) in water-level gauge will be lower than drum
(1) water level in；In order to ensure temperature that the temperature in mica water-level gauge is more nearly in drum (1) so that vapour in water-level gauge
It is more nearly in water level and drum (1) in water intercommunicating pore (18), therefore three thermal compensation holes (17) is devised in table body (14),
After saturated vapor enters these three thermal compensation holes (17), the temperature of table body (14), the temperature being close in drum (1) are improved
Degree, the water condensed converges device (19) by heat tracing, drainpipe (20) flows into down-comer (22).
3rd, into the saturated vapor of table body (14), some enters drainer (13), becomes water inflow table after condensation
Body (14) further improves water temperature and water quality to the water in flush clean mica component (15) and displacement carbonated drink intercommunicating pore (18)
And further improve the accuracy of level measuring；Mica component (15) plays light between table body (14) and gland (16)
Reflection, refraction, perspective act on and show that the vapour of water level is red light green.
4th, balance pipe (9) connects vapour side threeway (8) and water side threeway (10), plays balance vapour side connecting tube
(11) and the effect of water side connecting tube (12) interior pressure so that water column is unlikely to fluctuate widely in carbonated drink intercommunicating pore (18).
5th, device will be converged with thermal compensation hole (17) and heat tracing（19）Connected drainpipe (20) extends downwards about 15 meters of height
Degree connects again with down-comer (22), thoroughly radiates to ensure thermal compensation hole without keeping the temperature（17）In always full of saturated vapor,
Ensure table body（14）And carbonated drink intercommunicating pore therein（18）There are heat tracing, drum（1）The saturated vapor to come over is to table body（14）And vapour
Water intercommunicating pore（18）In water heating, reduce carbonated drink intercommunicating pore（18）Interior liquid conducts heat outward, recycles drainer（13）It is cold
Saturated water displacement carbonated drink intercommunicating pore after solidifying（18）Interior water accelerates water cycle, makes carbonated drink intercommunicating pore（18）Water closer to full
And coolant-temperature gage, so as to eliminate carbonated drink intercommunicating pore（18）Interior water column density deviation caused by level measuring so that level measuring hole
Interior water level is under any operating mode all close to drum（1）Interior real water level reaches the mesh of accurate low deviation monitoring steam water-level
's.
Existing low-deviation mica water level gauge for steam drum water level is according to carbonated drink intercommunicating pore（18）With thermal compensation hole（17）, heat tracing converges
The position relationship of device (19) is divided into two kinds of situations, first, two carbonated drink intercommunicating pores as shown in Figure 1（18）One section of bottom is not provided with
It is internal in table body (14), it causes not in this section of internal carbonated drink intercommunicating pore of table body (14)（18）It cannot be by thermal compensation hole（17）Add
Heat；Second is that two carbonated drink intercommunicating pores as shown in Figure 2（18）It is internal to be integrally provided in table body (14), thermal compensation hole（17）Export list body
(14) point is higher than carbonated drink intercommunicating pore（18）Export list body (14) point equally causes following one section of carbonated drink intercommunicating pore（18）It cannot be complete
By thermal compensation hole（17）Heating.Both the above situation can all cause level measuring there are certain deviation, and carbonated drink intercommunicating pore and
There is cross section in thermal compensation hole, and complex manufacturing technology easily goes wrong；When thermal compensation hole export list body point is higher than carbonated drink intercommunicating pore
During export list body point, this leading point and heat tracing converge device and can occupy mica window to a distance of water side fairlead, make
Mica component cannot be installed at this by, which obtaining, cannot also observe the water level of this section, that is, reduce measurement range visual range.
It is insufficient existing for low-deviation mica water level gauge for steam drum water level in order to overcome, it is necessary to research and develop a kind of precision height, processing
Convenient, the broader mica water-level gauge of measurement range.
Invention content
The present invention provides a kind of high-precision mica water-level gauge, can solve existing for low-deviation mica water level gauge for steam drum water level
Shortcoming, improves water level measurement accuracy, and manufacture easy to process increases measurement range.
To overcome the deficiencies in the prior art, the present invention is realized by following technical scheme：A kind of high-precision cloud
Female water-level gauge, by drum (1), vapour side probe tube (2), lateral water sampling tube (3), vapour side valve door (4), water side valve door (5), vapour side valve
Door connecting tube (6), water side valve door connecting tube (7), vapour side threeway (8), balance pipe (9), water side threeway (10), vapour side connecting tube
(11), water side connecting tube (12), drainer (13), table body (14), mica component (15), gland (16), thermal compensation hole (17), vapour
Water intercommunicating pore（18）, heat tracing converge device (19), drainpipe (20), blow-off pipe (21), down-comer (22), lateral vapour side opening（23）
Composition.It is characterized in that：It is arranged in table body（14）In three thermal compensation holes (17) from table body（14）In leading point be less than two
Carbonated drink intercommunicating pore（18）From table body（14）Middle leading point.The organization plan makes the thermal compensation hole (17) being arranged in table body (14)
Than carbonated drink intercommunicating pore（18）It is long, ensure in table body（14）Middle carbonated drink intercommunicating pore（18）There are heat tracing, drum on whole hole（1）Come over
Saturated vapor to whole table body（14）And whole carbonated drink intercommunicating pores（18）In water heating, more reduce carbonated drink intercommunicating pore（18）
Interior liquid conducts heat outward, makes carbonated drink intercommunicating pore（18）Water temperature closer to saturated water temperature in drum, connect so as to eliminate carbonated drink
Through-hole（18）Interior water column density deviation caused by level measuring so that the water level in level measuring hole all connects under any operating mode
Nearly drum（1）Interior real water level achievees the purpose that precisely to monitor steam water-level, therefore the invention is known as high-precision mica water level
Meter；Three thermal compensation holes simultaneously（17）Leading point be not take up level measuring range, increase level measuring range and visual model
It encloses.
Compared with prior art, the beneficial effects of the invention are as follows：
1. the structure of the present invention is using three thermal compensation holes of change（17）With two carbonated drink intercommunicating pores（18）In table body（14）
Outer converges mode, using in table body（14）Upper drilling converges device with heat tracing respectively（19）It welds and connects with water side connecting tube (12)
It connects, the thermal compensation hole inside table body（17）With carbonated drink intercommunicating pore（18）Between the structure that does not intersect, simplify mica water level
The process for machining and manufacturing of meter is avoided in table body（14）The stifled weldering in inside, avoids table body（14）Interior leak point hidden danger.
2. the structure of the present invention uses and is changed to three thermal compensation holes（17）In table body（14）Outer carbonated drink intercommunicating pore（18）
Converge the mode drawn below leading point, be table body（14）To saving very big sky between the leading point of water side under mica module window
Between, it can add a measurement window on the table body of water side one end, water is increased on the basis of original table body is not changed
Position measurement range.
3. compared with prior art, the present invention changes table body（14）In three thermal compensation holes (17) connected with two carbonated drinks
Hole（18）Connection structure and link position, make thermal compensation hole (17) than carbonated drink intercommunicating pore（18）It is long, ensure the water level measured
The real water level being more nearly in drum, improves measurement accuracy.
Description of the drawings：
The structure diagram of Fig. 1 low-deviation mica water level gauge for steam drum water level
The structure diagram of Fig. 2 low-deviation mica water level gauge for steam drum water level
The structure diagram of Fig. 3 present invention
The table body structure cut-away view of Fig. 4 specific embodiment of the invention one
The table body structure cut-away view of Fig. 5 specific embodiment of the invention two
In figure：1 drum, 2 vapour side probe tubes, 3 lateral water sampling tubes, 4 vapour side valve doors, 5 water side valve doors, the connection of 6 vapour side valve doors
Pipe, 7 water side valve door connecting tubes, 8 vapour side threeways, 9 balance pipes, 10 water side threeways, 11 vapour side connecting tubes, 12 water side connecting tubes, 13
Drainer, 14 table bodies, 15 mica components, 16 glands, 17 thermal compensation holes, 18 carbonated drink intercommunicating pores, 19 heat tracings converge device, 20 drainings
Pipe, 21 blow-off pipes, 22 down-comers, 23 lateral vapour side openings.
Specific embodiment：
Specific embodiment one
See Fig. 3 and Fig. 4.The table body of high-precision mica water-level gauge（14）Internal longitudinal direction is provided with 5 through-holes, with table body（14）'s
On the basis of center, two carbonated drink intercommunicating pores are opened in the left and right sides（18）, remaining three holes are thermal compensation hole（17）It is opened in carbonated drink company
Through-hole（18）Both sides and centre；Table body（14）Side is provided with 1 lateral vapour side opening for connecting 5 through-holes on the lower at top（23）.
Two drainers（13）It is respectively welded at table body（14）Two carbonated drink intercommunicating pores at top（18）On, carbonated drink intercommunicating pore（18）Under
End passes through water side connecting tube（12）With table body（14）External lateral water sampling tube（3）It is connected to drum（1）On.Three thermal compensation holes
（17）In table body（14）The mouth at top, which blocks up, burn-ons, the lateral vapour side opening opened by side（23）With vapour side connecting tube（11）Welding connects
It connects, then with vapour side probe tube（2）With drum（1）Connection, thermal compensation hole（17）Lower end aperture and heat tracing converge device（19）Weldering
It connects in succession, passes through drainpipe（20）With drum（1）Down-comer（22）Connection.Mica component（15）Mounted on table body（14）And pressure
Lid（16）Between.Wherein water side connecting tube（12）It is welded to form by three sections of bend pipes and three-way connection, by table body（14）Side
Drilling and table body（14）Internal carbonated drink intercommunicating pore（18）Connection, heat tracing converge device（19）It is connected by two sections of bend pipes and one four
Head is welded to form, with table body（14）The thermal compensation hole of bottom（17）It is welded to connect, forms entire heat tracing circulation access.
During operation, vapour side valve door（4）, water side valve door（5）It opens, saturated vapor and saturated water pass through table body（14）Outer vapour
Side probe tube（2）, lateral water sampling tube（3）, vapour side extension tube attached（1）With water side connecting tube（12）Enter table body（14）It is interior, saturation
Steam and saturated water are in carbonated drink intercommunicating pore（18）Middle mixing, fractional saturation vapor enter drainer（13）, also imported after cooling
To carbonated drink intercommunicating pore（18）In.Saturated vapor passes through thermal compensation hole（17）For carbonated drink intercommunicating pore（18）Heating, passes through companion after cooling
Heat sink, which attaches together, puts（19）It is flowed into drainpipe（21）Into down-comer（22）In.
Specific embodiment two
See Fig. 5, different from specific embodiment one is exactly that heat tracing converges device（19）Relative to table body（14）On position
Difference is put, heat tracing converges device（19）It is welded to form by 2 sections of bend pipes and a L-type four-way connection, and in table body（14）It opens side
With thermal compensation hole（17）Three holes communicated are welded to connect, with table body（14）Interior thermal compensation hole（17）Access is formed, herein companion
Heat sink, which attaches together, puts（19）Trepanning in water side connecting tube（12）Lower end, to ensure thermal compensation hole（17）Length more than carbonated drink connect
Through-hole（18）Length.
Claims (1)
1. a kind of high-precision mica water-level gauge, by drum (1), vapour side probe tube (2), lateral water sampling tube (3), vapour side valve door (4),
Water side valve door (5), vapour side valve door connecting tube (6), water side valve door connecting tube (7), vapour side threeway (8), balance pipe (9), water side three
Logical (10), vapour side connecting tube (11), water side connecting tube (12), drainer (13), table body (14), mica component (15), gland
(16), thermal compensation hole (17), carbonated drink intercommunicating pore（18）, heat tracing converge device (19), drainpipe (20), blow-off pipe (21), decline
Manage (22), lateral vapour side opening（23）Composition, it is characterized in that：It is arranged in table body（14）In three thermal compensation holes (17) from table body
（14）In leading point be less than two carbonated drink intercommunicating pores（18）From table body（14）Middle leading point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721680097.0U CN207540623U (en) | 2017-12-06 | 2017-12-06 | High-precision mica water-level gauge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721680097.0U CN207540623U (en) | 2017-12-06 | 2017-12-06 | High-precision mica water-level gauge |
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| Publication Number | Publication Date |
|---|---|
| CN207540623U true CN207540623U (en) | 2018-06-26 |
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ID=62617233
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721680097.0U Active CN207540623U (en) | 2017-12-06 | 2017-12-06 | High-precision mica water-level gauge |
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| Country | Link |
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| CN (1) | CN207540623U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806917A (en) * | 2017-12-06 | 2018-03-16 | 秦皇岛华电测控设备有限公司 | High-precision mica water-level gauge |
| CN111412962A (en) * | 2020-04-15 | 2020-07-14 | 江苏鑫亚达仪表制造有限公司 | High-precision water level measuring device of water level meter |
-
2017
- 2017-12-06 CN CN201721680097.0U patent/CN207540623U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806917A (en) * | 2017-12-06 | 2018-03-16 | 秦皇岛华电测控设备有限公司 | High-precision mica water-level gauge |
| CN107806917B (en) * | 2017-12-06 | 2023-09-26 | 秦皇岛华电测控设备有限公司 | High-precision mica fluviograph |
| CN111412962A (en) * | 2020-04-15 | 2020-07-14 | 江苏鑫亚达仪表制造有限公司 | High-precision water level measuring device of water level meter |
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