CN1185471C - Drum built-in electrode level measuring tube - Google Patents
Drum built-in electrode level measuring tube Download PDFInfo
- Publication number
- CN1185471C CN1185471C CNB01122911XA CN01122911A CN1185471C CN 1185471 C CN1185471 C CN 1185471C CN B01122911X A CNB01122911X A CN B01122911XA CN 01122911 A CN01122911 A CN 01122911A CN 1185471 C CN1185471 C CN 1185471C
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- drum
- electrode
- water level
- boiler
- measuring
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- Expired - Fee Related
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The present invention relates to a boiler drum built-in electrode water level measuring drum for remotely measuring the boiler drum water level. The present invention has the purposes of eliminating the measuring error of the boiler drum water level caused by the reason that the electrode water level measuring drum results in the density error of a water column by the influence of the room temperature heat dispersion and eliminating the measuring error of the boiler drum water level caused by the reason that the boiler drum electrode water level measuring drum is unable to simulate steam bubbles in boiling water in a boiler drum. The whole electrode water level measuring drum is arranged in the boiler drum, and a sensing end of a measuring electrode arranged on a circular drum body is exposed outside the circular drum body. An electrode lead wire end extends in the circular drum body, and one or two extraction tubes in the internal space of the circular drum body pass through the wall of the boiler drum to be communicated with atmosphere. The present invention can be used as a primary measuring drum for a boiler drum electrode water level meter.
Description
The present invention relates to a kind of improved water level gauge of electrode type water level gauge that industry, station boiler drum teletransmission level measuring uses and measure tube---a kind of drum built-in electrode level measuring tube.It is applicable to the boiler drum level measuring, is particularly useful for high parameter, the measurement of heavy duty boiler boiler drum water level.
It is by draw a lateral water sampling tube on drum that existing electrode method is measured the boiler drum water level, the electrode level measuring tube of vapour side-draw vapour sample pipe and drum outside also connects, make electrode level measuring tube become connection container with drum, potential electrode impression end stretches into to be measured in the tube, the characteristics of utilizing the carbonated drink conductance to differ greatly are differentiated vapour phase or liquid phase.Because steam temperature High variation scope is big in the large-sized boiler drum, also carry many steam bubbles secretly in the boiling water in the drum, the steam of carrying steam bubble in the drum in the boiling water secretly mixes the difficult what of phase state parameter and reappears in electrode level measuring tube, two kinds of measuring error of general existence, the one, because of measuring the boiler drum water level measuring error that water column density error that tube influences by the room temperature heat radiation to cause causes, the 2nd, can not accomplish in drum, to carry steam bubble in the boiling water secretly because of measuring the interior water of tube, cause the boiler drum water level measuring error.As Chinese invention patent ZL91100647.8, disclosed a kind of dual-container electrode water level measuring cylinder in the denomination of invention " combined steam manifold water level sampler ", though eliminated the boiler drum water level measuring error that water column density influence that the room temperature heat radiation causes produces, contained the steam bubble height in the boiling water in the drum and cause the boiler drum water level measuring error but still exist.For high parameter, heavy duty boiler, above-mentioned measuring error can not satisfy manufacturing technique requirent, influences the thermal efficiency and boiler safety production.
The present invention seeks to be boiler drum electrode level meter, be provided at the full operating mode of boiler operatiopn, do not exist the measurement tube to cause the boiler drum water level measuring error that the water column density error produces because of the room temperature heat radiation, not existing because of carrying steam bubble in the boiling water in the drum secretly influences a kind of drum built-in electrode level measuring tube of boiler drum water level measuring error.
Solution of the present invention is as follows: a cylinder, use upper end cover, the bottom end cover sealing, electrode tip holder divides single file or many files alternative arrangement at the cylinder perisporium by each display dot height of drum electrode level, when potential electrode is fixed on the electrode tip holder, make the potential electrode lead end stretch into the cylinder intracorporeal space, potential electrode impression end breaks outside cylinder, potential electrode impression end is made duty and is horizontal XPM, catch the water contact area with increase, constitute electrode level measuring tube, electrode level measuring tube integral body is placed in the drum, normal " 0 " level electrode seat center on the cylinder is consistent with normal " 0 " height of water level of drum, the electrode level measuring tube inner space must be connected with 1 to 2 fairlead and pass through the drum wall and communicate with atmosphere, fairlead can be drawn at the upper end cover or the bottom end cover of cylinder, also can draw at the cylinder sidepiece, when upper end cover is drawn, fairlead passes through the drum top, when bottom end cover is drawn, fairlead passes through boiler drum bottom, when the cylinder sidepiece is drawn, fairlead passes through the drum sidepiece, putting insulation and drawing lead one end with the electrode of lacking porcelain tube and be connected with the potential electrode lead end, the other end is connected with drum external electrode water level gauge through fairlead.
Because electrode level measuring tube integral body places in the drum, potential electrode impression end directly contacts with the interior water of drum, vapour phase, and electrode impression end is differentiated the interior cold conditions water level of drum or saturated water level and vapour phase easily.Be when carrying the steam mixing phase real water level of steam bubble in the boiling water secretly in the drum, because upwards tumbling rate is very fast in boiling water for steam bubble, also, wrapped up at the potential electrode impression end that big water-touching area is arranged that is horizontal XPM by water owing to always having the localized metallic net, make potential electrode impression end influenced by steam bubble, be in continuous conducting state, so potential electrode impression end is also differentiated steam mixing phase real water level and the vapour phase that is entrained with steam bubble in the drum in the boiling water easily.
The present invention has two kinds of purposes: the one, make boiler drum electrode level meter one-shot measurement tube, and the 2nd, make boiler drum water level alarm and protection one-shot measurement tube.
Advantage of the present invention is that the water column density that drum electrode level signal does not exist the room temperature heat radiation to cause influences the boiler drum water level measuring error that produces, and does not exist because of containing the boiler drum water level measuring error that the steam bubble effect of altitude causes in the drum boiling water.
The embodiment of the invention is as shown in drawings:
Accompanying drawing 1 is a structural representation
Accompanying drawing 2 is A-A views
The present invention has cylinder 1, upper end cover 2, bottom end cover 3, electrode tip holder 4, a kind of drum built-in electrode level measuring tube, electrode level measuring tube integral body places in the drum 12, electrode tip holder 4 divides single file or many files alternative arrangement at cylinder 1 perisporium by each indication point height of drum electrode level, present embodiment is arranged by three files, when potential electrode 5 is fixed on the electrode tip holder 4, make potential electrode lead end 6 stretch into cylinder 1 inner space, potential electrode impression end 7 is made duty and is horizontal porous metals silk screen and is exposed to outside the cylinder 1, as shown in Figure 2, cylinder 1 inner space must be connected with 1 to 2 fairlead and pass through drum 12 walls and communicate with atmosphere, present embodiment connects a top fairlead 8 at cylinder 1 upper lateral part and passes through the drum wall and communicate with atmosphere, connect a bottom fairlead 9 passes through drum 12 walls and communicates with atmosphere in cylinder 1 following side, normal " 0 " level electrode seat 4 centers on the cylinder 1 are consistent with normal " 0 " height of water level of drum, be with the end that insulation draws lead 11 with the electrode of lacking porcelain tube 10 and be connected with potential electrode lead end 6, the other end is connected with electrode level meter outside the drum 12 through top fairlead 8 or bottom fairlead 9.
In the accompanying drawing 1
1, cylinder 2, upper end cover 3, bottom end cover 4, electrode tip holder
5, potential electrode 6, potential electrode lead end 7, potential electrode impression end
8, top fairlead 9, bottom fairlead 10, short porcelain tube
11, electrode is drawn lead 12, drum
Claims (1)
- A kind of drum built-in electrode level measuring tube, cylinder (1) is arranged, upper end cover (2), bottom end cover (3), electrode tip holder (4), electrode level measuring tube integral body places in the drum (12), said electrode tip holder (4) divides single file or many files alternative arrangement at cylinder (1) perisporium by each indication point height of drum electrode level, when potential electrode (5) is fixed on the electrode tip holder (4), make potential electrode lead end (6) stretch into cylinder (1) inner space, being with the end that insulation draws lead (11) with the electrode of lacking porcelain tube (10) is connected with potential electrode lead end (6), the other end is connected with drum (12) electrode level meter outward, it is characterized in that: electrode impression end (7) duty of potential electrode (5) is horizontal porous metals silk screen and is exposed to outside the cylinder (1), and cylinder (1) inner space must be connected with 1 to 2 top fairlead (8), bottom fairlead (9) passes through drum (12) wall and communicates with atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01122911XA CN1185471C (en) | 2001-07-10 | 2001-07-10 | Drum built-in electrode level measuring tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01122911XA CN1185471C (en) | 2001-07-10 | 2001-07-10 | Drum built-in electrode level measuring tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1395084A CN1395084A (en) | 2003-02-05 |
| CN1185471C true CN1185471C (en) | 2005-01-19 |
Family
ID=4664914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB01122911XA Expired - Fee Related CN1185471C (en) | 2001-07-10 | 2001-07-10 | Drum built-in electrode level measuring tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1185471C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100390506C (en) * | 2004-07-13 | 2008-05-28 | 刘吉川 | Built-electrode sensor for water level in steam drum |
| CN107796479B (en) * | 2017-09-15 | 2021-02-09 | 青岛海尔施特劳斯水设备有限公司 | Water level probe, water tank and purifier |
-
2001
- 2001-07-10 CN CNB01122911XA patent/CN1185471C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1395084A (en) | 2003-02-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NANNING CHENGZHANG POWER TECHNOLOGY DEVELOPMENT C Free format text: FORMER OWNER: CHENG WENZHANG Effective date: 20050722 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20050722 Address after: 530003, the Guangxi Zhuang Autonomous Region, Nanning Science Park, five East Fourth Street, No. 3, B05 Patentee after: Nanning growth Electric Power Technology Development Co Ltd Address before: 545002 the Guangxi Zhuang Autonomous Region Liuzhou city queershan Guangxi power installation company Patentee before: Cheng Wenzhang |
|
| 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 |