CN203549806U - Anti-wear installation structure for boiler temperature measurement device - Google Patents
Anti-wear installation structure for boiler temperature measurement device Download PDFInfo
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- CN203549806U CN203549806U CN201320733528.0U CN201320733528U CN203549806U CN 203549806 U CN203549806 U CN 203549806U CN 201320733528 U CN201320733528 U CN 201320733528U CN 203549806 U CN203549806 U CN 203549806U
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- China
- Prior art keywords
- mounting structure
- wear
- protective casing
- lift
- boiler
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- Expired - Lifetime
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- 238000009434 installation Methods 0.000 title abstract description 7
- 238000009529 body temperature measurement Methods 0.000 title abstract 8
- 230000001681 protective effect Effects 0.000 claims abstract description 37
- 239000000839 emulsion Substances 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 16
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000004224 protection Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000003134 recirculating effect Effects 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
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Abstract
The utility model discloses an anti-wear installation structure for a boiler temperature measurement device. One end of the boiler temperature measurement device penetrates through a boiler wall from the outside of a boiler (5) and extends into the hearth (1) of the boiler (5); the boiler temperature measurement device comprises a temperature measurement element (4) and a protective sleeve (3) sleeved on the temperature measurement element (4), wherein the anti-wear installation structure also comprises a pouring layer (2); the pouring layer (2) at least surrounds at least part, extending into an extending part (31) in the hearth (1), of the protective sleeve (3). According to the anti-wear installation structure for the boiler temperature measurement device, the wear and tear of the protective sleeve (3) and the temperature measurement element (4) caused by bed materials can be prevented effectively, the service life is prolonged, and the anti-wear installation structure has the advantages of low cost, convenience in maintenance and the like.
Description
Technical field
The utility model relates to furnace temperature measuring device, particularly, relates to a kind of anti-wear mounting structure of furnace temperature measuring device.
Background technology
The demand of improving environment along with the mankind is more and more urgent, recirculating fluidized bed (CFB) boiler technology is as a kind of clean burning technology, from the seventies, start to grow up, its special combustion system has reduced coal fired power plant widely to pollutants such as airborne release sulfur dioxide and nitrogen oxide.
In recirculating fluidized bed, air velocity generally reaches 3.5-8m/s, and in bed, material, by high velocity air band flake hearth-tapping, after gas solid separation, is sent into circulation in fluid bed by material return system and fired.A large amount of molecular beds of soot particle need reach suitable temperature, just can make to improve efficiency of combustion and desulfuration efficiency.
Fluidized Boiler Bed layer temperature is important measurement data, once temperature element damages, run duration cannot be changed.Guarantee that the long-term normal work of temperature element is the key factor that realizes machine and long-period stable operation.Bed temperature measuring cell is positioned at bed material emulsion zone, and FAQs is because bed material at high temperature causes fracture to the wearing and tearing of temperature element, makes its cisco unity malfunction.
Existing Anti-wear Technology is mainly to install special steel wear-resistant protection sleeve pipe outward additional at temperature element (TE.But protective casing cost is higher, and anti-wear performance is limited, through being just worn to exposing temperature element after a while.In addition, different according to boiler shape, temperature element abrading section is different, so wear-resistant protection sleeve pipe is difficult to guarantee completely that temperature element life cycle is consistent with the stable operation of the boiler cycle, often at next scheduled overhaul, does not arrive, and unit still just damages when operation.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of anti-wear structure for furnace temperature measuring device, and this anti-wear structure is with low cost, be convenient to safeguard, and can effectively extend the service life of described temperature element.
To achieve these goals; the utility model provides a kind of anti-wear mounting structure of furnace temperature measuring device; one end of wherein said furnace temperature measuring device extend in the burner hearth of this boiler through furnace wall from the outside of boiler; described furnace temperature measuring device comprises temperature element and is sleeved on the protective casing on this temperature element; wherein; described anti-wear mounting structure also comprises LIFT, and this LIFT is at least around at least a portion of the dip section in the described burner hearth of extending into of described protective casing.
Preferably, the end of described protective casing is exposed to described LIFT in described burner hearth.
Preferably, the end face of described LIFT forms the plane vertical with described protective casing bearing of trend.
Preferably, described LIFT is fixed on the internal face of described burner hearth.
Preferably, described anti-wear mounting structure also comprises the wire netting being enclosed in described LIFT periphery.
Preferably, described protective casing extend into the end-enclosed in described burner hearth, thereby described temperature element is isolated by described protective casing and described burner hearth.
Preferably, described temperature element is connected on described furnace wall by being respectively formed at the flange in described protective casing and outside, furnace wall.
Preferably, described temperature element is thermocouple.
Preferably, described anti-wear mounting structure integral body is downward-sloping.
Preferably, described boiler is CFBB, the funnelform emulsion zone of lower furnace portion that described anti-wear mounting structure is arranged on described CFBB.
By technique scheme, anti-wear structure of the present utility model, by the outer field LIFT of temperature element, prevents that bed material from directly acting on protective casing or temperature element, thereby increases the service life.Described LIFT cost is lower, easy to maintenance, guarantees equipment under test energy long-term operation.
Other feature and advantage of the present utility model partly in detail are described the specific embodiment subsequently.
Accompanying drawing explanation
Accompanying drawing is to be used to provide a further understanding of the present invention, and forms a part for description, is used from explanation the utility model, but does not form restriction of the present utility model with the specific embodiment one below.In the accompanying drawings:
Fig. 1 is according to the scheme of installation of the anti-wear mounting structure of the furnace temperature measuring device of the utility model specific embodiment.
Fig. 2 is the partial enlarged drawing of I in Fig. 1.
Description of reference numerals
1 burner hearth 2 LIFTs
3 protective casing 31 dip sections
4 temperature element 5 boilers
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is elaborated.Should be understood that, the specific embodiment described herein only, for description and interpretation the utility model, is not limited to the utility model.
Be respectively as depicted in figs. 1 and 2 according to the scheme of installation of the anti-wear mounting structure of furnace temperature measuring device of the present utility model and partial enlarged drawing.Wherein, one end of furnace temperature measuring device extend in the burner hearth 1 of described boiler 5 through furnace wall from the outside of boiler 5.As shown in the enlarged drawing of local I in Fig. 2, furnace temperature measuring device comprises temperature element 4 and protective casing 3, and this protective casing 3 is sleeved on temperature element 4.Especially; anti-wear mounting structure of the present utility model also comprises LIFT 2, for the protection of temperature element 4 and protective casing 3, makes it not to be worn; therefore, described LIFT 2 is at least around at least a portion that extend into the dip section 31 in burner hearth 1 of protective casing 3.Bed material in boiler 5 falls down, and acts on the LIFT 2 of protective casing 3 peripheries, effectively slows down protective casing 3 and temperature element 4 wearing and tearing, increases the service life, and saves production cost.
In addition, above-mentioned LIFT 2 can have multiple choices, as long as meet wear-resisting condition.For cost-saving, be convenient to safeguard, can adopt the mixture of aglite, powder and binding agent to form.Certainly, also can adopt the high-abrasive material using on burner hearth 1 inwall, when burner hearth 1 is overhauled, LIFT 2 be reinforced and repaired, thereby guarantee that temperature element and boiler operatiopn cycle keep synchronize, minimizing use and maintenance cost.
Particularly, for not affecting thermometric accuracy, when carrying out LIFT 2 construction and repairing, can make the end of protective casing 3 in burner hearth 1, expose and LIFT 2, thereby a section of exposing can make temperature element 4 temperature-sensitive more accurately.Simultaneously; because bed material also has wearing and tearing to described a section of exposing; can make LIFT 2 suitably thicker; and form at end face the form that corner angle are sharp-pointed; for example form the plane vertical with the bearing of trend of protective casing 3, thereby when bed material falls, under the effect of LIFT 2 sharp corners, " splash " and come; reduce the bed material amount that drops on cannula tip, slowed down the rate of wear.
In LIFT 2 construction and repairing, can make it to be fixed on the internal face of burner hearth 1, if the material of LIFT 2 is consistent with the material that burner hearth 1 inwall is used, can also make to connect more firm and simple and easy.In addition, for ease of construction with prevent that LIFT 2 bulks from coming off, anti-wear mounting structure of the present utility model surrounds wire netting in the periphery of LIFT 2 again.
As a kind of typical structure, the end that above-mentioned protective casing 3 extend in burner hearth 1 is enclosed construction, thereby temperature element 4 and burner hearth 1 are kept apart, and is guaranteeing, under thermometric degree of accuracy prerequisite, temperature element 4 to be formed to more protections as far as possible.
Described furnace temperature measuring device can be installed on boiler 5 in multiple known mode, for example, can on protective casing 3 and outside, furnace wall, form flange respectively, and the mode of being threaded connection is fixed, and then temperature element 4 is extend in protective casing 3.
Any one temperature-measuring element or assembly that temperature element 4 can be commonly used for those skilled in the art.As a kind of preferred embodiment of the present utility model, can select thermocouple to carry out temperature survey.Thermocouple has the advantages such as assembling is simple, replacing is convenient, mechanical strength is high, long service life, and in addition particularly importantly, its measurement category is large, even can under 2800 ℃ of high temperature, work.
As a kind of particularly preferred embodiment of the present utility model, above-mentioned anti-wear mounting structure is set to whole downward-sloping, along the flow direction of bed material, can slow down the rate of wear, especially can effectively reduce the damage that the impact of bulk materials causes.
Embodiment
On temperature element, be set with special steel wear-resistant protection sleeve pipe; and be provided with LIFT; be installed on the furnace wall of CFBB emulsion zone, normally operation, suitably repairs LIFT during each shutdown maintenance; after 187 days; LIFT is substantially intact, and protective casing end mild wear does not continue to use but do not affect; approximately 2050 yuan of every temperature element costs, LIFT maintenance cost is negligible.
Comparative example
On temperature element, be set with special steel wear-resistant protection sleeve pipe, but be not provided with LIFT, be installed on the furnace wall of CFBB emulsion zone, normally move after 50 days, protective casing and temperature element root serious wear, can not continue to use again.
Below describe by reference to the accompanying drawings preferred embodiment of the present utility model in detail; but; the utility model is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.For example, for different temperature element 4 and protective casing 3, its mode being connected on boiler 5 can be different, are not limited to a kind of form of flange.
It should be noted that in addition each the concrete technical characterictic described in the above-mentioned specific embodiment, in reconcilable situation, can combine by any suitable mode.For fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible combinations.
In addition, between various embodiment of the present utility model, also can be combined, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. the anti-wear mounting structure of a furnace temperature measuring device; one end of wherein said furnace temperature measuring device extend in the burner hearth (1) of this boiler (5) through furnace wall from the outside of boiler (5); described furnace temperature measuring device comprises temperature element (4) and is sleeved on the protective casing (3) on this temperature element (4); it is characterized in that; described anti-wear mounting structure also comprises LIFT (2), and this LIFT (2) is at least around at least a portion that extend into the dip section (31) in described burner hearth (1) of described protective casing (3).
2. anti-wear mounting structure according to claim 1, is characterized in that, the end of described protective casing (3) is exposed to described LIFT (2) in described burner hearth (1).
3. anti-wear mounting structure according to claim 2, is characterized in that, the end face of described LIFT (2) forms the plane vertical with described protective casing (3) bearing of trend.
4. anti-wear mounting structure according to claim 1, is characterized in that, described LIFT (2) is fixed on the internal face of described burner hearth (1).
5. anti-wear mounting structure according to claim 1, is characterized in that, described anti-wear mounting structure also comprises the wire netting being enclosed in described LIFT (2) periphery.
6. anti-wear mounting structure according to claim 1; it is characterized in that; described protective casing (3) extend into the end-enclosed in described burner hearth (1), thereby described temperature element (4) is by described protective casing (3) and described burner hearth (1) isolation.
7. anti-wear mounting structure according to claim 1, is characterized in that, described temperature element (4) is connected on described furnace wall by being respectively formed at the flange in described protective casing (3) and outside, furnace wall.
8. anti-wear mounting structure according to claim 1, is characterized in that, described temperature element (4) is thermocouple.
9. according to the anti-wear mounting structure described in any one in claim 1 to 8, it is characterized in that, described anti-wear mounting structure integral body is downward-sloping.
10. anti-wear mounting structure according to claim 9, is characterized in that, described boiler (5) is CFBB, and described anti-wear mounting structure is arranged on the emulsion zone of burner hearth (1) the lower hopper shape of described CFBB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320733528.0U CN203549806U (en) | 2013-11-19 | 2013-11-19 | Anti-wear installation structure for boiler temperature measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320733528.0U CN203549806U (en) | 2013-11-19 | 2013-11-19 | Anti-wear installation structure for boiler temperature measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203549806U true CN203549806U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320733528.0U Expired - Lifetime CN203549806U (en) | 2013-11-19 | 2013-11-19 | Anti-wear installation structure for boiler temperature measurement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203549806U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332745A (en) * | 2015-10-30 | 2016-02-17 | 中国神华能源股份有限公司 | Temperature measurement installation structure used for turbine and turbine |
-
2013
- 2013-11-19 CN CN201320733528.0U patent/CN203549806U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332745A (en) * | 2015-10-30 | 2016-02-17 | 中国神华能源股份有限公司 | Temperature measurement installation structure used for turbine and turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |