CN208921302U - A kind of boiler secondary air temperature-detecting device - Google Patents

A kind of boiler secondary air temperature-detecting device Download PDF

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Publication number
CN208921302U
CN208921302U CN201821497870.4U CN201821497870U CN208921302U CN 208921302 U CN208921302 U CN 208921302U CN 201821497870 U CN201821497870 U CN 201821497870U CN 208921302 U CN208921302 U CN 208921302U
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China
Prior art keywords
shield
thermal resistance
boiler
protection pipe
air temperature
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Active
Application number
CN201821497870.4U
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Chinese (zh)
Inventor
胡立东
袁高亮
邵海峰
神冒东
刘源
吴春廷
庄朋刚
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Linyi Sunshine Thermal Power Co Ltd
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Linyi Sunshine Thermal Power Co Ltd
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Priority to CN201821497870.4U priority Critical patent/CN208921302U/en
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Abstract

The utility model discloses a kind of boiler secondary air temperature-detecting devices; including protection pipe, end face thermal resistance, shield, fixed iron sheet, signal wire and shield end cap; one end of the protection pipe is equipped with shield; it is connected through a screw thread on shield and shield end cap is installed; end face thermal resistance is installed in protection pipe; and one end of end face thermal resistance is mounted in shield by fixed iron sheet; and it is also connected with signal wire on the thermal resistance of end face, which passes through shield and connect with temperature monitoring apparatus.The utility model is at low cost, and effect is obvious, can effectively extend the measuring point service life, reduces maintenance rate.

Description

A kind of boiler secondary air temperature-detecting device
Technical field
The utility model relates to boiler plant fields, more particularly, to a kind of boiler secondary air temperature-detecting device.
Background technique
Boiler is a kind of energy conversion, and the energy inputted to boiler has chemical energy, electric energy in fuel, boiler output Steam, high-temperature water or organic heat carrier with certain thermal energy.In order to make the more thorough of the fuel combustion in boiler, it will usually Introduce Secondary Air into boiler, Secondary Air is the hot-air that burner hearth is sent by the individual passage of burner, into burner hearth after Gradually mixed with First air.Secondary Air provides oxygen for the burning of carbon, and can reinforce the disturbance of air-flow, promotes high-temperature flue gas Reflux promotes the mixing of combustible and oxygen, provides condition for completely burned.Secondary Air is generally provided by pressure fan, through air Preheater heating.
However the temperature of Secondary Air is excessively high, also can scaling loss secondary air duct, to avoid this situation, it will usually in Secondary Air Temperature measurer is installed in pipeline additional, to monitor the temperature of secondary air duct.But secondary air temperature measuring point is since secondary air duct vibration is big, peace Often there is shatter situation in the thermal resistance of dress.
Utility model content
The utility model is to overcome above situation insufficient, it is desirable to provide a kind of technical solution that can solve the above problem.
A kind of boiler secondary air temperature-detecting device, including protection pipe, end face thermal resistance, shield, fixed iron sheet, signal One end of line and shield end cap, the protection pipe is equipped with shield, is connected through a screw thread on shield and is equipped with shield End cap is equipped with end face thermal resistance in protection pipe, and one end of end face thermal resistance is mounted in shield by fixed iron sheet, And it is also connected with signal wire on the thermal resistance of end face, which passes through shield and connect with temperature monitoring apparatus.
As a further solution of the present invention: the protection pipe is made of austenitic stainless steel.
As a further solution of the present invention: the protection pipe is made by steel-pipe welding technique.
As a further solution of the present invention: the end face thermal resistance is end face copper resistance.
As a further solution of the present invention: the shield is welded in protection pipe.
Compared with prior art, the utility model has the beneficial effects that
The utility model is at low cost, and effect is obvious, can effectively extend the measuring point service life, reduces maintenance rate.
The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the utility model structure diagram.
Fig. 2 is the stationary state structural schematic diagram of end face thermal resistance in the utility model.
In figure: protection pipe 1, end face thermal resistance 2, shield 3, fixed iron sheet 4, signal wire 5 and shield end cap 6.
Specific embodiment
Below by the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described Embodiment is only the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to The range of the utility model protection.
Please refer to Fig. 1~2, in the utility model embodiment, a kind of boiler secondary air temperature-detecting device, including protection pipe 1, end face thermal resistance 2, shield 3, fixed iron sheet 4, signal wire 5 and shield end cap 6, one end of the protection pipe 1 are equipped with anti- Shield 3 is connected through a screw thread on shield 3 and is equipped with shield end cap 6, and end face thermal resistance 2 is equipped in protection pipe 1, And one end of end face thermal resistance 2 passes through fixed iron sheet 4 and is mounted in shield 3, and is also connected with signal wire on end face thermal resistance 2 5, which passes through shield 3 and connect with temperature monitoring apparatus.
The protection pipe 1 is made of austenitic stainless steel.
The protection pipe 1 is made by steel-pipe welding technique.
The end face thermal resistance 2 is end face copper resistance.
The shield 3 is welded in protection pipe 1.
The working principle of the utility model is:
End face thermal resistance is installed in protection pipe, an iron sheet is installed additional on end face thermal resistance top and fixes, vibration in this way is big It will not shatter end face thermal resistance.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.

Claims (5)

1. a kind of boiler secondary air temperature-detecting device, including protection pipe, end face thermal resistance, shield, fixed iron sheet, signal wire With shield end cap, which is characterized in that one end of the protection pipe is equipped with shield, and installation is connected through a screw thread on shield There is shield end cap, end face thermal resistance is installed in protection pipe, and one end of end face thermal resistance is mounted on by fixed iron sheet In shield, and it is also connected with signal wire on the thermal resistance of end face, which passes through shield and connect with temperature monitoring apparatus.
2. boiler secondary air temperature-detecting device according to claim 1, which is characterized in that the protection pipe is by austenite Stainless steel is made.
3. boiler secondary air temperature-detecting device according to claim 1, which is characterized in that the protection pipe passes through steel pipe Welding procedure is made.
4. boiler secondary air temperature-detecting device according to claim 1, which is characterized in that the end face thermal resistance is end Face copper resistance.
5. boiler secondary air temperature-detecting device according to claim 1, which is characterized in that the shield is welded on guarantor On pillar.
CN201821497870.4U 2018-09-13 2018-09-13 A kind of boiler secondary air temperature-detecting device Active CN208921302U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821497870.4U CN208921302U (en) 2018-09-13 2018-09-13 A kind of boiler secondary air temperature-detecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821497870.4U CN208921302U (en) 2018-09-13 2018-09-13 A kind of boiler secondary air temperature-detecting device

Publications (1)

Publication Number Publication Date
CN208921302U true CN208921302U (en) 2019-05-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821497870.4U Active CN208921302U (en) 2018-09-13 2018-09-13 A kind of boiler secondary air temperature-detecting device

Country Status (1)

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CN (1) CN208921302U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111238670A (en) * 2020-01-15 2020-06-05 江苏科润仪表有限公司 Assembled thermal resistor convenient to maintain

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111238670A (en) * 2020-01-15 2020-06-05 江苏科润仪表有限公司 Assembled thermal resistor convenient to maintain

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