CN208125287U - A kind of temperature measuring equipment of station boiler outlet flue - Google Patents
A kind of temperature measuring equipment of station boiler outlet flue Download PDFInfo
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- CN208125287U CN208125287U CN201820467799.9U CN201820467799U CN208125287U CN 208125287 U CN208125287 U CN 208125287U CN 201820467799 U CN201820467799 U CN 201820467799U CN 208125287 U CN208125287 U CN 208125287U
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Abstract
The utility model provides a kind of temperature measuring equipment of station boiler outlet flue, belongs to smoke temperature monitoring technical field, it solves the problems, such as that flue-gas temperature detection error existing in the prior art is not big, quick.The temperature measuring equipment of this station boiler outlet flue includes station boiler, and it further includes thermocouple assembly that station boiler, which has boiler nozzle, and thermocouple assembly one end is located at boiler nozzle, and the thermocouple assembly other end stretches out outside station boiler.The application is compared with prior art, it only needs to be located at the boiler nozzle using thermocouple assembly one end, the other end stretches out outside station boiler, can it is simple, quick, precisely and the smoke temperature smoke temperature of boiler nozzle is monitored in real time, for controlling the state of temperature of station boiler, to avoid station boiler coking, fire extinguishing, explosion and boiler tube explosion interruption of service.
Description
Technical field
The utility model relates to smoke temperature monitoring technical fields, fill more particularly to a kind of thermometric of station boiler outlet flue
It sets.
Background technique
In recent years, China's thermal power generation unit gradually develops to large capacity, high parameter direction.With Boiler Steam parameter
It is continuously improved, the structure design of superheater and reheater is also increasingly sophisticated, this will inevitably aggravate each pipe in parallel in pipe group
Thermal deviation in thermic load and working medium flow distribution, the boiler high temperature convection heating surface overtemperature tube burst accident thus caused increase
It is more, seriously affect the safe and economical operation of electric power station system.Flue gas temperature of hearth outlet of power station boiler is reflection boiler work shape
The important parameter of state, variation is closely bound up with the operating condition of boiler combustion, each main heat-transfer surface, and combustion conditions tissue does not conform to
Corner firing caused by reason uneven, flame kernel deflection, impact of flame on the wall etc. are that burner hearth coking, boiler tube explosion, burner hearth is caused to go out
The major reason of the interruption of services such as fire, furnace explosion.Therefore, rationally control flue gas temperature of hearth outlet to preventing heating surface knot
Slag, monitoring boiler startup, optimization burning, optimum control soot blower and raising boiler life etc. have highly important work
With.It is limited by the limitation of conventional art condition, continuously online directly measurement flue gas temperature of hearth outlet can not be monitored, between can only relying on
The method connect calculates that often error is larger and lacks timeliness for this result extrapolated to the temperature.
Majority hearth outlet of power station boiler flue gas temperature measurement at present mainly uses following several means：
The first is used：Smoke temperature probe, smoke temperature probe are a kind of by thermocouple feeding burner hearth or flue, monitor flue-gas temperature
Electromechanical equipment.During being mainly used for boiler startup, the flue-gas temperature at furnace outlet is monitored, prevents reheater pipe from burning out.
It can also be used as auxiliary control tool, flue-gas temperature when measurement boiler at low load operation generally must when smoke temperature is close to 550 DEG C
It must withdraw, otherwise will damage, the needs of on-line measurement can not be met.
Second of use：Acoustic measurement method can be used as the means of on-line measurement, but due to the burning of high-decibel in furnace
Noise and soot blower noise and temperature field are unevenly distributed so that have very big mistake to the measurement of acoustic transit time
Difference, while belonging to round-about way and temperature is calculated, this resultant error extrapolated is larger and lacks timeliness.
The third is used：Laser c T technology, holographic technique, but since the big optics of dust-laden flame in large-scale combustion apparatus is thick
The reasons such as device valuableness, installation accuracy height, operating difficulties needed for spending feature, and this kind of technology, it is current domestic and international there is not yet
In its multiphase flow measurement for being actually used in industrialness pulverized coal flame.
4th kind of use：Infrared measurement of temperature online measuring technique has by the measurement section reasonable installation at furnace outlet
There is the infrared temperature measurement apparatus of scanning function, obtain real-time flue gas local temperature, using surveyed online data, by corresponding formula
Temperature is calculated, belongs to round-about way, this resultant error extrapolated is larger and lacks timeliness.
Therefore, in terms of engineer application, a kind of easy, quick, accurate, energy real time on-line monitoring device is found, into
The measurement of trip temperature is particularly important.
For this purpose, the utility model provides a kind of temperature measuring equipment of station boiler outlet flue.
Utility model content
In view of the above problem existing for existing technology, the purpose of this utility model is to provide a kind of station boiler smokes
Mouthful temperature measuring equipment, the utility model at least the technical problem to be solved is that：It is how simple, quick, accurate and right in real time
The smoke temperature smoke temperature of boiler nozzle is monitored.
The purpose of this utility model can be realized by the following technical scheme：
A kind of temperature measuring equipment of station boiler outlet flue, including station boiler, the station boiler have boiler nozzle,
It further include thermocouple assembly, described thermocouple assembly one end is located at the boiler nozzle, the thermocouple assembly other end
It stretches out outside the station boiler.
Further, the boiler tube for further including casing and being arranged in station boiler, the thermocouple assembly are located at the set
In tube cavity, described sleeve pipe is connected by guiding trestle with the boiler tube.
Preferably, the station boiler, the furnace of the described sleeve pipe other end and the station boiler are stretched out in described sleeve pipe one end
Setting is spaced between internal heating surface.
Preferably, further include furnace wall, between the furnace wall and the boiler tube be equipped with sealing element, the guiding trestle respectively with
The pipeline, boiler tube junction be equipped with sealing element.
Preferably, the sealing element is sealant.
Preferably, the thermocouple assembly includes thermocouple one, thermocouple two and thermocouple three, the boiler nozzle
Including flue gas window one, flue gas window two, described one one end of thermocouple, two one end of thermocouple and three one end of thermocouple are distinguished
It stretches out outside the station boiler, one other end of thermocouple is located at the flue gas window one, two other end of thermocouple
In the station boiler, three other end of thermocouple is located at the flue gas window two.
Preferably, the flue gas window one, flue gas window two are connected with the pipeline respectively.
Preferably, described sleeve pipe is made of metal material.
As described above, the utility model relates to a kind of station boiler outlet flue temperature measuring equipment, have below beneficial to effect
Fruit：
After the application is using the temperature measuring equipment of above-mentioned station boiler outlet flue, compared with prior art, it is only necessary to utilize
Thermocouple assembly one end is located at the boiler nozzle, and the other end stretches out outside station boiler, it will be able to simple, quick, accurate
And the smoke temperature smoke temperature of boiler nozzle is monitored in real time, for controlling the state of temperature of station boiler, to avoid electricity
Stand boiler coke, fire extinguishing, explosion and boiler tube explosion interruption of service, this way it is ensured that the normal use and operation of station boiler
The personal safety of member further improves life in addition, thermocouple assembly high temperature resistant, thermal response speed be fast and long service life
Produce efficiency.
Detailed description of the invention
Fig. 1 is a kind of temperature measuring equipment overall structure diagram of station boiler outlet flue；
Fig. 2 is enlarged drawing at a kind of temperature measuring equipment A of station boiler outlet flue.
Component label instructions
1, station boiler
2, boiler nozzle
21, flue gas window one
22, flue gas window two
3, thermocouple assembly
31, thermocouple one
32, thermocouple two
33, thermocouple three
4, casing
5, boiler tube
6, guiding trestle
7, furnace internal heating surface
8, furnace wall
9, sealing element
Specific embodiment
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily.
It should be clear that structure depicted in this specification attached drawing, ratio, size etc., only to cooperate specification revealed
Content is not intended to limit the utility model enforceable qualifications so that those skilled in the art understands and reads, therefore
Do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, this is practical not influencing
Under novel the effect of can be generated and the purpose that can reach, should all still fall in the revealed technology contents of the utility model can contain
In the range of lid.Meanwhile in this specification it is cited as "upper", "lower", "left", "right", " centre ", "inner", "outside" and
The term of " one " etc. is merely convenient to narration and is illustrated, rather than to limit the enforceable range of the utility model, relativeness
Be altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the utility model.Specific structure can
It is illustrated referring to the attached drawing of patent application.
As shown in Figure 1, a kind of temperature measuring equipment of station boiler outlet flue, including station boiler 1, the station boiler 1 have
There is boiler nozzle 2, further include thermocouple assembly 3, described 3 one end of thermocouple assembly is located at the boiler nozzle 2, described
3 other end of thermocouple assembly stretches out outside the station boiler 1.The application utilizes the temperature measuring equipment of above-mentioned station boiler outlet flue
Afterwards, compared with prior art, it is only necessary to be located at the boiler nozzle 2 using 3 one end of thermocouple assembly, the other end stretches out electricity
It stands outside boiler 1, it will be able to it is simple, quick, precisely and the smoke temperature smoke temperature of boiler nozzle 2 is monitored in real time, for slapping
The state of temperature of station boiler 1 is controlled, so that 1 coking of station boiler, fire extinguishing, explosion and boiler tube explosion interruption of service are avoided, this
Sample ensure that the normal use of station boiler 1 and the personal safety of operator, in addition, 3 high temperature resistant of thermocouple assembly, thermal response
Speed is fast and long service life, further improves production efficiency.Furthermore can be higher than 1000 in temperature using thermocouple 3 to take the photograph
Under the environment of family name degree or more, can still it be monitored.
Further, as shown in Figure 1, in actual application process, it is contemplated that the pipe expansion coefficient of different casings 4
The boiler tube 5 that difference further includes casing 4 and is arranged in station boiler 1, the thermocouple assembly 3 are located at 4 inner cavity of described sleeve pipe
In, described sleeve pipe 4 is connected by guiding trestle 6 with the boiler tube 5, and casing 4 may be implemented along guiding using guiding trestle 6
Direction is free to slide, avoids it from blocking and influences its use, to facilitate the smoke temperature of monitoring station boiler different location.
Preferably, as shown in Figure 1, the station boiler 1 is stretched out in 4 one end of described sleeve pipe, 4 other end of described sleeve pipe with it is described
It is spaced setting between the furnace internal heating surface 7 of station boiler 1, is heated in furnace in this manner it is ensured that the lower end of casing 4 will not be contacted
Face 7, that is to say, that can keep reasonable distance with furnace internal heating surface 7, guarantee station boiler 1 do not collide when hot and
Friction, to extend the service life of casing 4 and thermocouple assembly 3, while can also be to avoid generation contingency.
It preferably, further include furnace as shown in Figure 1, ensuring that the smoke temperature for monitoring station boiler 1 more accurately
Wall 8, is equipped with sealing element 9 between the furnace wall 8 and the boiler tube 5, the guiding trestle 6 respectively with described sleeve pipe 4, boiler tube 5
Junction is equipped with sealing element 9, in this way, can prevent the smoke temperature of 1 inner cavity of station boiler and outside from carrying out heat exchange, avoids monitoring
Smoke temperature generates error, avoids the judgement for generating inaccuracy.
Preferably, as shown in Figure 1, the sealing element 9 is sealant.
Preferably, as depicted in figs. 1 and 2, described in order to preferably monitor the smoke temperature of the different location in station boiler 1
Thermocouple assembly 3 includes thermocouple 1, thermocouple 2 32 and thermocouple 3 33, and the boiler nozzle 2 includes flue gas window
Mouth one 21, flue gas window 2 22, described one 31 one end of thermocouple, 2 32 one end of thermocouple and 3 33 one end of thermocouple are distinguished
It stretches out outside the station boiler 1, one 31 other end of thermocouple is located at the flue gas window 1, the thermocouple 2 32
The other end is located in the station boiler 1, and 3 33 other end of thermocouple is located at the flue gas window 2 22, in this way, can
In real time, accurately to monitor the use state of station boiler 1, to be conducive to make accurate judgement, electricity is avoided with this
Stand 1 coking of boiler, fire extinguishing, explosion and boiler tube explosion interruption of service, this way it is ensured that the normal use of station boiler 1 and behaviour
The personal safety of work person.
Preferably, as shown in Figure 1 or 2, in order to more real-timely, accurately monitoring station boiler 1 smoke temperature, the cigarette
Transom window mouth 1, flue gas window 2 22 are connected with described sleeve pipe 4 respectively.
Preferably, as shown in Figure 1, described sleeve pipe 4 is made of metal material, such as copper, do not make excessive limitation herein.
As described above, being had the advantages that the utility model relates to a kind of temperature measuring equipment of station boiler outlet flue：
After the application is using the temperature measuring equipment of above-mentioned station boiler outlet flue, compared with prior art, it is only necessary to utilize
Thermocouple assembly one end is located at the boiler nozzle, and the other end stretches out outside station boiler, it will be able to simple, quick, accurate
And the smoke temperature smoke temperature of boiler nozzle is monitored in real time, for controlling the state of temperature of station boiler, to avoid electricity
Stand boiler coke, fire extinguishing, explosion and boiler tube explosion interruption of service, this way it is ensured that the normal use and operation of station boiler
The personal safety of member further improves life in addition, thermocouple assembly high temperature resistant, thermal response speed be fast and long service life
Produce efficiency.
In conclusion the utility model effectively overcomes various shortcoming in the prior art and has high industrial exploitation value
Value.
The above embodiments are only illustrative of the principle and efficacy of the utility model, and not for limitation, this is practical new
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model
All equivalent modifications or change completed under mind and technical idea, should be covered by the claim of the utility model.
Claims (7)
1. a kind of temperature measuring equipment of station boiler outlet flue, including station boiler (1), the station boiler (1) goes out with boiler
Mouth (2), it is characterised in that：It further include thermocouple assembly (3), described thermocouple assembly (3) one end is located at the boiler smoke
At mouth (2), thermocouple assembly (3) other end stretches out the station boiler (1) outside, and the thermocouple assembly (3) includes heat
Galvanic couple one (31), thermocouple two (32) and thermocouple three (33), the boiler nozzle (2) include flue gas window one (21),
Flue gas window two (22), described thermocouple one (31) one end, thermocouple two (32) one end and thermocouple three (33) one end are divided equally
The station boiler (1) is not stretched out outside, and thermocouple one (31) other end is located at the flue gas window one (21), the heat
Galvanic couple two (32) other end is located in the station boiler (1), and thermocouple three (33) other end is located at the flue gas window
At two (22).
2. the temperature measuring equipment of station boiler outlet flue according to claim 1, it is characterised in that：Further include casing (4) and
The boiler tube (5) being arranged in station boiler (1), the thermocouple assembly (3) are located in described sleeve pipe (4) inner cavity, described sleeve pipe
(4) it is connected by guiding trestle (6) with the boiler tube (5).
3. the temperature measuring equipment of station boiler outlet flue according to claim 2, it is characterised in that：Described sleeve pipe (4) one end
It stretches out the station boiler (1), is spaced between the furnace internal heating surface (7) of described sleeve pipe (4) other end and the station boiler (1)
Setting.
4. the temperature measuring equipment of station boiler outlet flue according to claim 2, it is characterised in that：It further include furnace wall (8), institute
State between furnace wall (8) and the boiler tube (5) be equipped with sealing element (9), the guiding trestle (6) respectively with described sleeve pipe (4), boiler tube
(5) junction is equipped with sealing element (9).
5. the temperature measuring equipment of station boiler outlet flue according to claim 4, it is characterised in that：The sealing element (9) is
Sealant.
6. the temperature measuring equipment of station boiler outlet flue according to claim 5, it is characterised in that：The flue gas window one
(21), flue gas window two (22) is connected with described sleeve pipe (4) respectively.
7. according to the temperature measuring equipment of the described in any item station boiler outlet flues of claim 2-6, it is characterised in that：Described sleeve pipe
(4) it is made of metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820467799.9U CN208125287U (en) | 2018-03-31 | 2018-03-31 | A kind of temperature measuring equipment of station boiler outlet flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820467799.9U CN208125287U (en) | 2018-03-31 | 2018-03-31 | A kind of temperature measuring equipment of station boiler outlet flue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208125287U true CN208125287U (en) | 2018-11-20 |
Family
ID=64193518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820467799.9U Active CN208125287U (en) | 2018-03-31 | 2018-03-31 | A kind of temperature measuring equipment of station boiler outlet flue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208125287U (en) |
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2018
- 2018-03-31 CN CN201820467799.9U patent/CN208125287U/en active Active
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