CN110173715A - Boiler water cooling equipment and temperature measurement component assembly method - Google Patents
Boiler water cooling equipment and temperature measurement component assembly method Download PDFInfo
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- CN110173715A CN110173715A CN201910590618.0A CN201910590618A CN110173715A CN 110173715 A CN110173715 A CN 110173715A CN 201910590618 A CN201910590618 A CN 201910590618A CN 110173715 A CN110173715 A CN 110173715A
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- water cooling
- thermocouple wire
- platinum
- inner end
- boiler water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 238000001816 cooling Methods 0.000 title claims abstract description 86
- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000012212 insulator Substances 0.000 claims abstract description 35
- 238000011900 installation process Methods 0.000 claims abstract description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 84
- 229910052697 platinum Inorganic materials 0.000 claims description 24
- 238000009413 insulation Methods 0.000 claims description 12
- PXXKQOPKNFECSZ-UHFFFAOYSA-N platinum rhodium Chemical compound [Rh].[Pt] PXXKQOPKNFECSZ-UHFFFAOYSA-N 0.000 claims description 12
- 229910052703 rhodium Inorganic materials 0.000 claims description 6
- 239000010948 rhodium Substances 0.000 claims description 6
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 6
- 229910052573 porcelain Inorganic materials 0.000 claims description 3
- 230000005855 radiation Effects 0.000 description 8
- 229910018487 Ni—Cr Inorganic materials 0.000 description 6
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 206010020843 Hyperthermia Diseases 0.000 description 3
- 230000036031 hyperthermia Effects 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000013178 mathematical model Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/38—Determining or indicating operating conditions in steam boilers, e.g. monitoring direction or rate of water flow through water tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M5/00—Casings; Linings; Walls
- F23M5/08—Cooling thereof; Tube walls
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The present invention relates to boiler water cooling equipments and temperature measurement component assembly method, boiler water cooling equipment includes water cooling tube, temperature measurement component and thermal insulator, water cooling tube has side towards the fire and carries on the back fiery face, temperature measurement component includes Pt-10Rh-Pt thermocouple wire and temperature indicator, the inner end of Pt-10Rh-Pt thermocouple wire is connect with side towards the fire, and the outer end of Pt-10Rh-Pt thermocouple wire is connect with temperature indicator；Thermal insulator is covered on the inner end of Pt-10Rh-Pt thermocouple wire.Temperature measurement component assembly method includes temperature measurement component, and temperature measurement component includes Pt-10Rh-Pt thermocouple wire and temperature indicator, and installation process is as follows: the side towards the fire of the inner end of Pt-10Rh-Pt thermocouple wire and water cooling tube is connected；The outer end of Pt-10Rh-Pt thermocouple wire is connect with temperature indicator；Thermal insulator is made, so that thermal insulator is connect with water cooling tube, and thermal insulator is covered on the inner end of Pt-10Rh-Pt thermocouple wire.Boiler water cooling equipment of the invention being capable of temperature that is more acurrate and more reliably measuring side towards the fire.
Description
Technical field
The present invention relates to boiler technology field more particularly to a kind of boiler water cooling equipment and temperature measurement component assembly methods.
Background technique
Boiler water cooling equipment is the pith for constituting boiler furnace, and boiler water cooling equipment includes more water coolings of arrangement
The fin and temperature measurement component of pipe, connection water cooling tube.
With the development of Utility Boiler Technology, ultra-supercritical boiler becomes the mainstream of station boiler.Water cooling tube has to fire
Face and the fiery face of back.The thermic load of side towards the fire is larger, and temperature is high.The temperature for carrying on the back fiery face is lower, carries on the back the temperature in fiery face by side towards the fire
Temperature and water cooling tube in Temperature of Working influence.
The effect of temperature measurement component is: measuring the temperature of water cooling tube, prevents water cooling tube overheat to fail.
The mode of existing measurement water cooling tube temperature includes following several:
1, fiery face installation temperature measurement component is being carried on the back, is measuring unexposed surface temperature, founding mathematical models extrapolate the temperature of side towards the fire
Degree.Influence of the temperature of the side towards the fire finally obtained by mathematical model, not can accurately reflect the temperature of side towards the fire.
2, pore is opened up in the tube wall of water cooling tube, one end of pore is open end, and fiery face is being carried on the back in open end setting,
The other end extends to side towards the fire along the circumferential direction, and pore is injected from open end in one end of thermocouple wire, until extending to thin
The other end in hole.The problem is that: the intensity of water cooling tube is reduced, drilling difficulty is big, is easy the temperature for drilling water cooling tube, measuring
Degree is the temperature among the tube wall of water cooling tube, is not the temperature of the side towards the fire of water cooling tube.
3, heat-collecting block is welded in the side towards the fire of water cooling tube, using nickel chromium triangle-nisiloy armoured K-thermocouple, nickel chromium triangle-nisiloy armouring
One end of K-type thermocouple extends to heat-collecting block internal thread and tightens fixation, and the other end leads to boiler furnace by the aperture on fin
Outside.The problem is that: it is 900 degree, 1100 degree of maximum operation (service) temperature that nickel chromium triangle-nisiloy armoured K-thermocouple, which is commonly used using temperature,.
Nickel chromium triangle-nisiloy armoured K-thermocouple is prone to wear by boiler furnace hyperthermia radiation, and corrosion, service life is short, and after oxidation
Nickel chromium triangle-nisiloy armoured K-thermocouple and heat-collecting block poor contact cause measurement data inaccurate, relatively low.In addition, nickel chromium triangle-nisiloy
Armoured K-thermocouple also results in measurement simultaneously by the side towards the fire surface temperature of water cooling tube and the effect of burner hearth heat radiation
Data inaccuracy.
Summary of the invention
Technical problem solved by the invention is: a kind of boiler water cooling equipment and temperature measurement component assembly method are provided, it should
Boiler water cooling equipment is capable of the temperature of side towards the fire that is more acurrate and more reliably measuring water cooling tube.
Technical scheme is as follows:
A kind of boiler water cooling equipment, including water cooling tube, temperature measurement component and thermal insulator, the water cooling tube have side towards the fire and back
Fiery face, the temperature measurement component include Pt-10Rh-Pt thermocouple wire and temperature indicator, the Pt-10Rh-Pt thermocouple wire it is interior
End is connect with the side towards the fire, and the outer end of the Pt-10Rh-Pt thermocouple wire is connect with the temperature indicator；The thermal insulator
It covers on the inner end in the Pt-10Rh-Pt thermocouple wire.
Preferably, in above-mentioned boiler water cooling equipment, the thermal insulator includes heat shield, the heat shield and the water cooling
Pipe connection, the heat shield have heat-insulation chamber, and the inner end of the Pt-10Rh-Pt thermocouple wire is arranged in the heat-insulation chamber；Institute
It states heat shield and is provided with threading opening, the outer end of the Pt-10Rh-Pt thermocouple wire passes through the threading opening and the temperature display
Device connection.
Preferably, in above-mentioned boiler water cooling equipment, thermal insulator is provided in the heat-insulation chamber, the thermal insulator covers institute
State the inner end of Pt-10Rh-Pt thermocouple wire.
Preferably, in above-mentioned boiler water cooling equipment, the heat shield includes open end, the open end and the water cooling
Pipe connection, the open end is connected to the threading opening.
Preferably, in above-mentioned boiler water cooling equipment, the boiler water cooling equipment further includes thermal sleeve, the collet
Pipe sleeve is on the Pt-10Rh-Pt thermocouple wire, and the thermal sleeve is stretched out at the both ends of the Pt-10Rh-Pt thermocouple wire
Except.
Preferably, in above-mentioned boiler water cooling equipment, the thermal sleeve includes inner sleeve and outer tube, the inner sleeve
For porcelain bushing, the outer tube is wire sleeve.
Preferably, in above-mentioned boiler water cooling equipment, the boiler water cooling equipment further includes fin, the number of the water cooling tube
Amount is at least two, and the fin will at least two water cooling tubes link together, and the fin is provided with threading hole, described
The outer end of Pt-10Rh-Pt thermocouple wire passes through the threading hole and connect with the temperature indicator.
Preferably, in above-mentioned boiler water cooling equipment, the hole wall of the threading hole and the Pt-10Rh-Pt thermocouple wire it
Between be provided with seal.
Preferably, in above-mentioned boiler water cooling equipment, the Pt-10Rh-Pt thermocouple wire includes positive polar filament and negative electrode filament,
The inner end of the positive polar filament and the inner end of the negative electrode filament are welded to connect with the side towards the fire respectively, the outer end of the positive polar filament and
The outer end of the negative electrode filament is connect with the temperature indicator respectively.
Preferably, in above-mentioned boiler water cooling equipment, the inner end of the positive polar filament and the inner end of the negative electrode filament are oblique
Face.
A kind of temperature measurement component assembly method, including temperature measurement component, the temperature measurement component include Pt-10Rh-Pt thermocouple wire and
Temperature indicator, installation process are as follows:
The inner end of the Pt-10Rh-Pt thermocouple wire is connect with the side towards the fire of the water cooling tube；By the platinum rhodium 10- platinum
The outer end of thermocouple wire is connect with the temperature indicator；
Thermal insulator is made, so that the thermal insulator is connect with the water cooling tube, and the thermal insulator is covered in the platinum
On the inner end of rhodium 10- platinum thermocouple silk.
The present invention has the advantages that the common use temperature of Pt-10Rh-Pt thermocouple wire is 1300 DEG C, maximum operation (service) temperature
It is 1600 DEG C, in the environment of the hyperthermia radiation of the burner hearth of boiler, the service life is longer, good reliability.Due to platinum rhodium 10- platinum heat
It is that the temperature of side towards the fire can obtain more accurate side towards the fire compared with the existing technology that the inner end of thermocouple wire is measured directly
Temperature.In addition, since thermal insulator is stamped in the inner end in Pt-10Rh-Pt thermocouple wire, so as to obstruct boiler furnace to platinum rhodium
The heat radiation of the inner end of 10- platinum thermocouple silk, further increases the measurement accuracy to the temperature of side towards the fire, also can be improved platinum
The service life of rhodium 10- platinum thermocouple silk.In conclusion boiler water cooling equipment of the invention can it is more acurrate and more reliably measure to
The temperature in fiery face.
Detailed description of the invention
Fig. 1 is the perspective view of the boiler water cooling equipment of the embodiment of the present invention 1；
Fig. 2 is the top view of the part boiler water cooling equipment of the embodiment of the present invention 1.
Component names and label are as follows in figure:
Water cooling tube 10, side towards the fire 11 carry on the back fiery face 12, are Pt-10Rh-Pt thermocouple wire 20, positive polar filament 21, negative electrode filament 22, heat-insulated
Cover 30, heat-insulation chamber 31, threading opening 32, open end 33, thermal insulator 40, thermal sleeve 50, inner sleeve 51, outer tube 52, fin 60,
Threading hole 61.
Specific embodiment
Embodiment 1
As shown in Figs. 1-2, present embodiment discloses a kind of boiler water cooling equipments, which includes water cooling tube
10, temperature measurement component and thermal insulator, water cooling tube 10 have side towards the fire 11 and carry on the back fiery face 12, and temperature measurement component includes platinum rhodium 10- platinum thermoelectricity
It is not shown in thermo wires 20 and temperature indicator figure, the inner end of Pt-10Rh-Pt thermocouple wire 20 is connect with side towards the fire 11, platinum rhodium 10-
The outer end of platinum thermocouple silk 20 is connect with temperature indicator；Thermal insulator is covered on the inner end in Pt-10Rh-Pt thermocouple wire 20.
Advantage of this embodiment is that: the common use temperature of Pt-10Rh-Pt thermocouple wire 20 is 1300 DEG C, and highest uses
Temperature is 1600 DEG C, and in the environment of the hyperthermia radiation of the burner hearth of boiler, the service life is longer, good reliability.Due to platinum rhodium 10-
It is the temperature of side towards the fire 11 that the inner end of platinum thermocouple silk 20 is measured directly, compared with the existing technology, can be obtained more accurately
The temperature of side towards the fire 11.In addition, due to being stamped thermal insulator in the inner end of Pt-10Rh-Pt thermocouple wire 20, so as to obstruct pot
Heat radiation of the furnace burner hearth to the inner end of Pt-10Rh-Pt thermocouple wire 20 further increases the standard of the measurement to the temperature of side towards the fire 11
True property, also can be improved the service life of Pt-10Rh-Pt thermocouple wire 20.In conclusion the boiler water cooling equipment of the present embodiment can
Temperature that is more acurrate and more reliably measuring side towards the fire 11.
Specifically, Pt-10Rh-Pt thermocouple wire 20 includes positive polar filament 21 and negative electrode filament 22, Pt-10Rh-Pt thermocouple wire 20
Inner end refer to the inner end of positive polar filament 21 and the inner end of negative electrode filament 22.The outer end of Pt-10Rh-Pt thermocouple wire 20 refers to just
The outer end of polar filament 21 and the outer end of negative electrode filament 22.The inner end of positive polar filament 21 and the inner end of negative electrode filament 22 are welded with side towards the fire 11 respectively
It connects, connection type is simple, and can more accurately react the temperature of side towards the fire 11.The outer end of positive polar filament 21 and negative electrode filament 22
Outer end is connect with temperature indicator respectively.
The positive inner end of polar filament 21 and the inner end of negative electrode filament 22 are inclined-plane, and the benefit that the inclined-plane is arranged includes: to increase just
The bonding area of the inner end of polar filament 21 and the inner end of negative electrode filament 22 and side towards the fire 11, improves inner end and the negative electrode filament of positive polar filament 21
22 inner end and the connection reliability of side towards the fire 11, the inner end of the inner end and negative electrode filament 22 that prevent positive polar filament 21 is from side towards the fire 11
It falls off.
Thermal insulator includes heat shield 30, and heat shield 30 is connect with water cooling tube 10, and heat shield 30 has heat-insulation chamber 31, positive polar filament
21 inner end and the inner end of negative electrode filament 22 are arranged in heat-insulation chamber 31；Heat shield 30 is provided with threading opening 32, positive polar filament 21
Outer end and the outer end of negative electrode filament 22 pass through threading opening 32 and connect with temperature indicator.It is provided with thermal insulator 40 in heat-insulation chamber 31, protects
Warm body 40 covers the inner end of Pt-10Rh-Pt thermocouple wire 20.The benefit of heat shield 30 includes: 1, barrier boiler furnace to platinum rhodium
The heat radiation of the inner end of 10- platinum thermocouple silk 20.2, thermal insulator 40 can be accommodated, so as to further obstruct boiler furnace pair
The heat radiation of the inner end of Pt-10Rh-Pt thermocouple wire 20.3, relative to other thermal insulators, heat shield 30 is connect more with water cooling tube 10
The convenience added.
Heat shield 30 includes open end 33, and open end 33 and water cooling tube 10 weld, and open end 33 is connected to threading opening 32, should
The structure of heat shield 30 is simple, easy to manufacture.Heat shield 30 can be the rectangular box shape structure for saving two sides.The one side saved
Open end 33 is formed, the another side saved forms threading opening 32.Heat shield 30 or spherical cover.
Boiler water cooling equipment further includes thermal sleeve 50,50 sets of thermal sleeve on Pt-10Rh-Pt thermocouple wire 20, and platinum
The both ends of rhodium 10- platinum thermocouple silk 20 are stretched out except thermal sleeve 50.Thermal sleeve 50 is used for Pt-10Rh-Pt thermocouple wire
20 are thermally shielded protection, improve the service life of Pt-10Rh-Pt thermocouple wire 20.
Thermal sleeve 50 includes inner sleeve 51 and outer tube 52, double so as to carry out to Pt-10Rh-Pt thermocouple wire 20
It protects again.Inner sleeve 51 is porcelain bushing, and outer tube 52 is wire sleeve, inner sleeve 51 and housing relative to other materials
Pipe 52, heat insulation is more preferable.Inner sleeve 51 can be corundum ceramic casing, and outer tube 52 can be to be woven by stainless steel wire
Stainless steel wire casing.
Specifically, the quantity of inner sleeve 51 can be two, and two inner sleeves 51 are respectively fitted over positive polar filament 21 and negative electrode filament
On 22, the quantity of outer tube 52 can be one, and 52 sets of the outer tube outside two inner sleeves 51.
Boiler water cooling equipment further includes fin 60, and the quantity of water cooling tube 10 is at least two, and fin 60 will at least two water
Cold pipe 10 links together, and fin 60 is provided with threading hole 61, the outer end of Pt-10Rh-Pt thermocouple wire 20 pass through threading hole 61 with
Temperature indicator connection.Threading hole 61 is arranged on fin 60, it is more convenient.Pt-10Rh-Pt thermocouple wire 20 is together with inner sleeve
Pipe 51 and outer tube 52 pass through threading hole 61 together.It is provided between the hole wall and Pt-10Rh-Pt thermocouple wire 20 of threading hole 61
Seal, so as to meet combustion chamber draft service requirement.Seal can be formed by insulated pouring material, and seal may be
Sealing ring.Specifically, Pt-10Rh-Pt thermocouple wire 20 between inner sleeve 51 and outer tube 52 and seal by sealing against.
Embodiment 2
Present embodiment discloses a kind of temperature measurement component assembly methods, including the temperature measurement component in embodiment 1, with embodiment 1
In water cooling tube 10 be installation environment.Temperature measurement component includes Pt-10Rh-Pt thermocouple wire 20 and temperature indicator, and installation process is such as
Under:
The inner end of Pt-10Rh-Pt thermocouple wire 20 is connect with the side towards the fire 11 of water cooling tube 10；By platinum rhodium 10- platinum thermocouple
The outer end of silk 20 is connect with temperature indicator；
Thermal insulator is made, and thermal insulator is covered on the inner end in Pt-10Rh-Pt thermocouple wire 20.
Detailed process is as follows:
To select diameter be 0.4 millimeter -0.5 millimeter, the positive polar filament 21 that length is 500 millimeters -1000 millimeters and negative electrode filament 22
As Pt-10Rh-Pt thermocouple wire 20, so that Pt-10Rh-Pt thermocouple wire 20 has certain intensity.In boiler furnace high temperature
Under environment, can have longer service life, at the same also can guarantee positive polar filament 21 inner end and negative electrode filament 22 inner end with to
There is certain connection reliability between fiery face 11.The diameter and length of Pt-10Rh-Pt thermocouple wire 20 can be according to practical feelings
Condition is set.
The inner end of the inner end of positive polar filament 21 and negative electrode filament 22 is cut into inclined-plane with diagonal cutting nippers.
Side towards the fire 11 for connecting positive polar filament 21 and negative electrode filament 22 is known as interconnecting piece, is polished and is connected with sander
Portion, so that the surface of interconnecting piece is smooth.
The inner end of the inner end of positive polar filament 21 and negative electrode filament 22 is respectively welded on interconnecting piece with energy accumulation type welder.Anode
The inner end of silk 21 and 3 millimeters -6 millimeters of inner end distance of negative electrode filament 22.
The stainless steel plate with a thickness of 1 millimeter -2 millimeters is selected, a height of 15 millimeters of X15 millimeters of X10 milli of a length and width is processed into
The stainless steel cage of the rectangle of rice, saves bottom surface and side therein, and the bottom surface saved forms threading opening 32, and the side saved is formed
Open end 33 selects argon arc welding that the end face of open end 33 is welded on side towards the fire 11 by way of spot welding.The stainless steel cage
For heat shield 30, heat shield 30 is covered on the inner end of positive polar filament 21 and the inner end of negative electrode filament 22.
Thermal insulator 40 is filled into heat-insulation chamber 31, thermal insulator 40 can be insulated pouring material or heat-preservation cotton or heat-insulated
Pad.Thermal insulator 40 can also prevent the inner end of positive polar filament 21 and the inner end of negative electrode filament 22 from falling off from side towards the fire 11.
Positive polar filament 21 and negative electrode filament 22 pass through two inner sleeves 51 one by one, and make both ends and the negative electrode filament 22 of positive polar filament 21
Both ends stretched out from inner sleeve 51 respectively.An outer tube 52 is selected, 52 sets of outer tube outside two inner sleeves 51, and make
The positive both ends of polar filament 21 and the both ends of negative electrode filament 22 are stretched out from outer tube 52 respectively.
A threading hole 61 is opened up in 60 medium position of fin, the size of threading hole 61 is can pass through for outer tube 52
It is quasi-.Pt-10Rh-Pt thermocouple wire 20 passes through threading hole 61 together with inner sleeve 51 and outer tube 52
Insulated pouring material is filled between the hole wall and outer tube 52 of threading hole 61, which forms seal.
The positive outer end of polar filament 21 and the outer end of negative electrode filament 22 are connect with the temperature indicator outside burner hearth respectively.Temperature indicator
For showing the temperature of the side towards the fire 11 of measurement.Temperature indicator can be thermometric instrument or local panel cabinet.
The boiler water cooling equipment that the temperature measurement component assembly method of the present embodiment is formed can be more acurrate and be more reliably measured
The temperature of side towards the fire 11.
Emphasis describes the difference between each embodiment, difference between each embodiment in foregoing embodiments of the present invention
As long as optimization feature non-contradiction, can combine to form more preferably embodiment, in view of style of writing is succinct, details are not described herein.
More than, it is only the embodiment of the present invention, is not intended to limit the invention in any way, for those skilled in the art
For, the invention may be variously modified and varied.All any modifications made within the spirit and principles of the present invention are equal
Replacement, improvement etc., should be included within scope of the presently claimed invention.
Claims (11)
1. a kind of boiler water cooling equipment, it is characterised in that, including water cooling tube (10), temperature measurement component and thermal insulator, the water cooling tube
(10) there are side towards the fire (11) and carry on the back fiery face (12), the temperature measurement component includes that Pt-10Rh-Pt thermocouple wire (20) and temperature are aobvious
Show device, the inner end of the Pt-10Rh-Pt thermocouple wire (20) is connect with the side towards the fire (11), the platinum rhodium 10- platinum thermocouple
The outer end of silk (20) is connect with the temperature indicator；The thermal insulator is covered in the interior of the Pt-10Rh-Pt thermocouple wire (20)
On end.
2. boiler water cooling equipment according to claim 1, it is characterised in that, the thermal insulator includes heat shield (30), institute
It states heat shield (30) to connect with the water cooling tube (10), the heat shield (30) has heat-insulation chamber (31), the platinum rhodium 10- platinum heat
The inner end of thermocouple wire (20) is arranged in the heat-insulation chamber (31)；The heat shield (30) is provided with threading opening (32), the platinum
The outer end of rhodium 10- platinum thermocouple silk (20) passes through the threading opening (32) and connect with the temperature indicator.
3. boiler water cooling equipment according to claim 2, it is characterised in that, thermal insulator is provided in the heat-insulation chamber (31)
(40), the thermal insulator (40) covers the inner end of the Pt-10Rh-Pt thermocouple wire (20).
4. boiler water cooling equipment according to claim 2, it is characterised in that, the heat shield (30) includes open end
(33), the open end (33) connect with the water cooling tube (10), and the open end (33) is connected to the threading opening (32).
5. boiler water cooling equipment according to claim 1, it is characterised in that, the boiler water cooling equipment further includes collet
It manages (50), the thermal sleeve (50) covers on the Pt-10Rh-Pt thermocouple wire (20), and the platinum rhodium 10- platinum thermocouple
The both ends of silk (20) are stretched out except the thermal sleeve (50).
6. boiler water cooling equipment according to claim 5, it is characterised in that, the thermal sleeve (50) includes inner sleeve
(51) and outer tube (52), the inner sleeve (51) are porcelain bushing, and the outer tube (52) is wire sleeve.
7. boiler water cooling equipment according to claim 1, it is characterised in that, the boiler water cooling equipment further includes fin
(60), the quantity of the water cooling tube (10) is at least two, and the fin (60) will at least two water cooling tube (10) connections
Together, the fin (60) is provided with threading hole (61), and the outer end of the Pt-10Rh-Pt thermocouple wire (20) passes through described wear
String holes (61) is connect with the temperature indicator.
8. boiler water cooling equipment according to claim 7, it is characterised in that, the hole wall and the platinum of the threading hole (61)
Seal is provided between rhodium 10- platinum thermocouple silk (20).
9. boiler water cooling equipment according to claim 1, it is characterised in that, Pt-10Rh-Pt thermocouple wire (20) packet
Include positive polar filament (21) and negative electrode filament (22), the inner end of the inner end of the positive polar filament (21) and the negative electrode filament (22) respectively with it is described
Side towards the fire (11) is welded to connect, and the outer end of the positive polar filament (21) and the outer end of the negative electrode filament (22) are aobvious with the temperature respectively
Show that device connects.
10. boiler water cooling equipment according to claim 9, it is characterised in that, the inner end of the positive polar filament (21) and described
The inner end of negative electrode filament (22) is inclined-plane.
11. a kind of temperature measurement component assembly method, which is characterized in that including temperature measurement component, the temperature measurement component includes platinum rhodium 10- platinum
Thermocouple wire (20) and temperature indicator, installation process are as follows:
The inner end of the Pt-10Rh-Pt thermocouple wire (20) is connect with the side towards the fire (11) of the water cooling tube (10)；It will be described
The outer end of Pt-10Rh-Pt thermocouple wire (20) is connect with the temperature indicator；
Thermal insulator is made, so that the thermal insulator is connect with the water cooling tube (10), and the thermal insulator is covered in the platinum
On the inner end of rhodium 10- platinum thermocouple silk (20).
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