CN203705009U - Boiler drum liquid level meter - Google Patents
Boiler drum liquid level meter Download PDFInfo
- Publication number
- CN203705009U CN203705009U CN201420087564.9U CN201420087564U CN203705009U CN 203705009 U CN203705009 U CN 203705009U CN 201420087564 U CN201420087564 U CN 201420087564U CN 203705009 U CN203705009 U CN 203705009U
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- China
- Prior art keywords
- glass plate
- mounting groove
- rack
- boiler
- plate rack
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- 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.)
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Abstract
The utility model discloses a boiler drum liquid level meter. The liquid level meter comprises a glass plate (3) and a glass plate frame (6) which is a whole. A glass plate mounting groove with at least one side communicated with the surface of the glass plate frame (6) is formed in the glass plate frame (6), the glass plate (3) is disposed in the glass plate frame (6), an observation hole (8) and a plurality of internal threaded holes which are communicated with the glass plate mounting groove are formed in the glass plate frame (6) on one side of the glass plate mounting groove, a boiler water flow channel is formed between the glass plate frame (6) on the other side of the glass plate mounting groove and the glass plate (3), and a compression bolt (7) in threaded fit with the internal threaded hole is arranged in each internal threaded hole. According to the liquid level meter, the structure is simple, and the seal effect between the glass plate and the glass plate frame is not affected by the temperature of the compression bolt and is guaranteed.
Description
Technical field
The utility model relates to boiler accessories apparatus field, particularly relates to a kind of boiler drum liquid-level.
Background technology
Boiler liquid level is in respect of quartz plate formula and glass plate type leveler at present, under the environment of high temperature, high pressure steam, quartz ampoule is easily corroded, so quartzy board-like boiler liquid level meter is eliminated gradually, glass plate type leveler becomes the main flow of existing boiler liquid level gauge.
In prior art, glass plate type leveler comprises two intermediate plates and is arranged on the glass plate between intermediate plate, on intermediate plate in outside, be provided with through hole for observing liquid level, be arranged between the intermediate plate of inner side and glass plate and be provided with the drum current circulation passage along glass plate type leveler length direction, the sealing between two intermediate plates and glass plate is by being connected the coupling bolt realization of two intermediate plates.In the use procedure of glass plate type leveler, coupling bolt bears pressure, but due to heat radiation and the heat conduction of intermediate plate, glass plate and adapter, the working temperature of coupling bolt approaches drum water temperature, the impact that causes coupling bolt to be subject to high-temerature creep under pressure and to expand with heat and contract with cold is larger, the sealing surface of intermediate plate and glass plate easily lost efficacy, and caused liquid level gauge to leak.
Utility model content
Under pressure, be subject to high-temerature creep larger with the impact of expanding with heat and contract with cold for the coupling bolt of glass plate type leveler in above-mentioned prior art, the sealing surface of intermediate plate and glass plate easily lost efficacy, the problem that causes liquid level gauge to leak, the utility model provides a kind of boiler drum liquid-level.
For addressing the above problem, a kind of boiler drum liquid-level that the utility model provides achieves the goal by following technical essential: a kind of boiler drum liquid-level, comprise glass plate and glass plate rack, described glass plate rack is as a whole, on glass plate rack, be provided with the glass plate mounting groove that at least one side and glass plate rack surface connect, described glass plate is positioned at glass plate mounting groove, on the glass plate rack of glass plate mounting groove one side, be provided with the viewport and the multiple internal thread hole that connect with glass plate mounting groove, between the glass plate rack of glass plate mounting groove opposite side and glass plate, be provided with boiler water circulation passage, in each internal thread hole, be provided with the hold-down bolt that becomes with it threaded engagement.
The utility model is in the time using, and by tightening hold-down bolt, hold-down bolt is realized the sealing of boiler water circulation passage between glass plate and glass plate rack to the snap-in force of glass plate, and the power that hold-down bolt in use bears is compressive stress.The hold-down bolt of pressurized is resisted crystal grain elongating creep, simultaneously, hold-down bolt is pressed short under action of compressive stress on microcosmic, and hold-down bolt is heated as length elongation, thereby hold-down bolt is heated and is conducive to ensure that it imposes on the compressive stress of glass plate in this structure, ensure the sealing effectiveness between glass plate and glass plate rack.
Further technical scheme is:
For preventing that hold-down bolt from scraping damage to glass plate in rotation process and the end out-of-flatness of hold-down bolt thread segment, glass plate and hold-down bolt contact area are little, cause the stressed stress of glass plate to be concentrated, also comprise pressing plate, described pressing plate and glass plate laminating and be arranged on a side of glass plate Keep away from boiler current circulation passage.
Be not subject to the impact of drum duty for ease of the handling of the utility model and boiler-steam dome and the utility model part replacement, also comprise the joint flange that glass plate rack two ends arrange respectively, in the adapter of joint flange and glass plate rack, be respectively arranged with equalizing valve and lower equalizing valve, further, for ensureing sealing effectiveness, the sealing surface form of joint flange adopts male and fomale(M&F) (MFM); For alleviating the utility model weight, described upper equalizing valve and lower equalizing valve all adopt ball valve.
In use boiler water circulation passage is rinsed for ease of the utility model, also comprise blowoff valve, described blowoff valve is connected with the adapter between upper equalizing valve and lower equalizing valve.
For ease of the liquid level that accurately judge that the utility model shows, described glass plate rack is provided with in the one side of viewport and is also provided with multiple scales, and described scale is along the short transverse arrangement of viewport.
The utility model also has good observing effect when making night or dim light, and described glass plate is oblique prism, and tiltedly any two sides of prism is respectively glass plate rack and hold-down bolt pressure holding, and tiltedly the another side of prism outside is also provided with LED fluorescent tube.
The utlity model has following beneficial effect:
The utility model is simple in structure, and by tightening hold-down bolt, hold-down bolt is realized the sealing of boiler water circulation passage between glass plate and glass plate rack to the snap-in force of glass plate, and the power that hold-down bolt in use bears is compressive stress.The hold-down bolt of pressurized is resisted crystal grain elongating creep, simultaneously, hold-down bolt is pressed short under action of compressive stress on microcosmic, and hold-down bolt is heated as length elongation, thereby hold-down bolt is heated and is conducive to ensure that it imposes on the compressive stress of glass plate in this structure, ensure the sealing effectiveness between glass plate and glass plate rack.
Brief description of the drawings
Fig. 1 is the structural representation of a specific embodiment of a kind of boiler drum liquid-level described in the utility model.
Mark in figure is respectively: 1, pressing plate, 2, upper equalizing valve, 3, glass plate, 4, lower equalizing valve, 5, blowoff valve, 6, glass plate rack, 7, hold-down bolt, 8, viewport.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but structure of the present utility model is not limited only to following examples.
Embodiment 1:
As Fig. 1, a kind of boiler drum liquid-level, comprise glass plate 3 and glass plate rack 6, described glass plate rack 6 is as a whole, on glass plate rack 6, be provided with the glass plate mounting groove that at least one side and glass plate rack 6 surfaces connect, described glass plate 3 is positioned at glass plate mounting groove, on the glass plate rack 6 of glass plate mounting groove one side, be provided with the viewport 8 and the multiple internal thread hole that connect with glass plate mounting groove, between the glass plate rack 6 of glass plate mounting groove opposite side and glass plate 3, be provided with boiler water circulation passage, in each internal thread hole, be provided with the hold-down bolt 7 that becomes with it threaded engagement.
The utility model is in the time using, and by tightening hold-down bolt 7, hold-down bolt 7 is realized the sealing of boiler water circulation passage between glass plate 3 and glass plate rack 6 to the snap-in force of glass plate 3, and the power that hold-down bolt 7 in use bears is compressive stress.The hold-down bolt 7 of pressurized is resisted crystal grain elongating creep, simultaneously, hold-down bolt 7 is pressed short under action of compressive stress on microcosmic, and hold-down bolt 7 is heated as length elongation, thereby hold-down bolt 7 is heated and is conducive to ensure that it imposes on the compressive stress of glass plate 3 in this structure, ensure the sealing effectiveness between glass plate 3 and glass plate rack 6.
Liquid level gauge in the present embodiment applies to the boiler-steam dome that working pressure is 1.0Mpa, the nominal diameter of boiler water circulation passage is 12mm, the material of glass plate rack 6 is 20# steel, glass plate rack 6 thickness that are provided with viewport 8 one sides are 10mm, hold-down bolt 7 adopts the carbon steel bolt of the M10*30 of 8 8.8 grades, is provided with the graphite pads that thickness is 1.5mm between glass plate 3 and glass plate rack 6.More than under equal operating mode, arrange and can improve three times compared to the serviceable life of existing other glass plate type levelers,
Embodiment 2:
The present embodiment is further improved on the basis of embodiment 1, as Fig. 1, for preventing that hold-down bolt 7 from scraping damage to glass plate 3 in rotation process and hold-down bolt 7 thread segment end out-of-flatnesses, glass plate 3 and hold-down bolt 7 contacts area are little, cause the stressed stress of glass plate 3 to be concentrated, also comprise pressing plate 1, described pressing plate 1 is fitted with glass plate 3 and is arranged on a side of glass plate 3 Keep away from boiler current circulation passage.
Be not subject to the impact of drum duty for ease of the handling of the utility model and boiler-steam dome and the utility model part replacement, also comprise the joint flange that glass plate rack two ends arrange respectively, in the adapter of joint flange and glass plate rack, be respectively arranged with equalizing valve 2 and lower equalizing valve 4, further, for ensureing sealing effectiveness, the sealing surface form of joint flange adopts male and fomale(M&F) (MFM); For alleviating the utility model weight, described upper equalizing valve 2 and lower equalizing valve 4 all adopt ball valve.
In use boiler water circulation passage is rinsed for ease of the utility model, also comprise blowoff valve 5, described blowoff valve 5 is connected with the adapter between upper equalizing valve 2 and lower equalizing valve 4.
For ease of the liquid level that accurately judge that the utility model shows, described glass plate rack 6 is provided with in the one side of viewport 8 and is also provided with multiple scales, and described scale is along the short transverse arrangement of viewport 8.
The utility model also has good observing effect when making night or dim light, described glass plate 3 is oblique prism, tiltedly any two sides of prism is respectively glass plate rack 6 and hold-down bolt 7 pressure holdings, and tiltedly the another side of prism outside is also provided with LED fluorescent tube.
Claims (6)
1. a boiler drum liquid-level, comprise glass plate (3) and glass plate rack (6), it is characterized in that, described glass plate rack (6) is as a whole, on glass plate rack (6), be provided with the glass plate mounting groove that at least one side and glass plate rack (6) surface connect, described glass plate (3) is positioned at glass plate mounting groove, on the glass plate rack (6) of glass plate mounting groove one side, be provided with the viewport (8) and the multiple internal thread hole that connect with glass plate mounting groove, between the glass plate rack (6) of glass plate mounting groove opposite side and glass plate (3), be provided with boiler water circulation passage, in each internal thread hole, be provided with the hold-down bolt (7) that becomes with it threaded engagement.
2. a kind of boiler drum liquid-level according to claim 1, is characterized in that, also comprises pressing plate (1), and described pressing plate (1) and glass plate (3) are fitted and be arranged on a side of glass plate (3) Keep away from boiler current circulation passage.
3. a kind of boiler drum liquid-level according to claim 1, it is characterized in that, also comprise the joint flange that glass plate rack (6) two ends arrange respectively, in the adapter of joint flange and glass plate rack (6), be respectively arranged with equalizing valve (2) and lower equalizing valve (4).
4. a kind of boiler drum liquid-level according to claim 3, is characterized in that, also comprises blowoff valve (5), and described blowoff valve (5) is connected with the adapter between upper equalizing valve (2) and lower equalizing valve (4).
5. a kind of boiler drum liquid-level according to claim 1, is characterized in that, described glass plate rack (6) is provided with in the one side of viewport (8) and is also provided with multiple scales, and described scale is arranged along the short transverse of viewport (8).
6. according to a kind of boiler drum liquid-level described in any one in claim 1 to 5, it is characterized in that, described glass plate (3) is oblique prism, tiltedly any two sides of prism is respectively glass plate rack (6) and hold-down bolt (7) pressure holding, and tiltedly the another side of prism outside is also provided with LED fluorescent tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420087564.9U CN203705009U (en) | 2014-02-28 | 2014-02-28 | Boiler drum liquid level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420087564.9U CN203705009U (en) | 2014-02-28 | 2014-02-28 | Boiler drum liquid level meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203705009U true CN203705009U (en) | 2014-07-09 |
Family
ID=51055432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420087564.9U Expired - Fee Related CN203705009U (en) | 2014-02-28 | 2014-02-28 | Boiler drum liquid level meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203705009U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822688A (en) * | 2014-02-28 | 2014-05-28 | 成都大漠石油机械有限公司 | Liquid level meter for boiler drum |
-
2014
- 2014-02-28 CN CN201420087564.9U patent/CN203705009U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822688A (en) * | 2014-02-28 | 2014-05-28 | 成都大漠石油机械有限公司 | Liquid level meter for boiler drum |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20150228 |
|
| EXPY | Termination of patent right or utility model |