CN203298890U - Thermocouple for measuring flue gas - Google Patents
Thermocouple for measuring flue gas Download PDFInfo
- Publication number
- CN203298890U CN203298890U CN2013202759582U CN201320275958U CN203298890U CN 203298890 U CN203298890 U CN 203298890U CN 2013202759582 U CN2013202759582 U CN 2013202759582U CN 201320275958 U CN201320275958 U CN 201320275958U CN 203298890 U CN203298890 U CN 203298890U
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- CN
- China
- Prior art keywords
- protective casing
- annular air
- flue gas
- air scoop
- thermometric
- Prior art date
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model relates to a thermocouple for measuring the flue gas, which comprises a junction box, a temperature measuring core and a protection sleeve. The protection sleeve is fixedly arranged at the lower end of the junction box. The temperature measuring core is also fixedly arranged at the lower end of the junction box in the protection sleeve. The lower end of the junction box is fixedly provided with an annular air scoop. A central thermal-arrest temperature measurement chamber is formed between the annular air scoop and the protection sleeve. The thermocouple for measuring the flue gas is simple in structure, scientific and reasonable in design, simple in manufacture, low in cost, longer in service life, fast in temperature measuring speed, and good in impact resistance and corrosion resistance.
Description
Technical field
The utility model belongs to area of thermocouples, especially a kind of measurement flue gas thermopair.
Background technology
In the Coal Chemical Industry industry; need multiple combustion furnace; reburner is exactly wherein a kind of; in reburner, produce flue gas, its flue gas content is mainly reducibility gas, mainly comprises carbon monoxide, sulfuretted hydrogen and chlorine etc.; when temperature detects in to reburner; flue gas particle is serious to the protecting tube impingment corrosion, has shortened the serviceable life of temperature thermocouple, and the thermometric reaction is slower when thermometric.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of measurement flue gas thermopair is provided, this thermocouple structure is simple, design science rationally, make simple, cost is lower, extended serviceable life, fast, the shock-resistant corrosive effect of thermometric speed is good.
The utility model solves its technical matters and is achieved through the following technical solutions:
A kind of measurement flue gas thermopair; comprise terminal box, thermometric core body and protective casing; protective casing is packed in the terminal box lower end; the thermometric core body is packed in the terminal box lower end in protective casing; it is fixedly mounted with annular air scoop in the protective casing lower end, between annular air scoop and protective casing, forms thermal-arrest thermometric chamber, center.
And described annular air scoop quantity is 2-5, and coaxial spaced setting from inside to outside forms auxiliary thermal-arrest thermometric chamber between internal layer annular air scoop and outer annular air scoop.
And described protective casing outer wall is fixed with flange, on flange, is provided with hanger.
And, on the protective casing below described flange, be set with collet, between collet and protective casing, fill ceramic fiber cotton.
Advantage of the present utility model and beneficial effect are:
1, this measurement flue gas thermopair; comprise terminal box, thermometric core body and protective casing; protective casing is packed in the terminal box lower end; the thermometric core body is packed in the terminal box lower end in protective casing; it is fixedly mounted with annular air scoop in the protective casing lower end; between annular air scoop and protective casing, form thermal-arrest thermometric chamber, center; the annular air scoop arranges and effectively prevents the impingment corrosion of flue gas particle to the thermocouple measurement end; extended serviceable life; by the effective collection to heat, make to measure in addition and react faster, temperature survey is more accurate.
2, this measurement flue gas is 2-5 with the annular air scoop quantity of thermopair, coaxial spaced setting from inside to outside, between internal layer annular air scoop and outer annular air scoop, form auxiliary thermal-arrest thermometric chamber, the multi-layer annular air scoop better plays the effect of collecting heat, the heat of dispersion can be concentrated, increase heat and gather area, help temperature Measurement accuracy fully, the annular air scoop also has conductive force concurrently, can make thermometric core body sensitive measurement more.
3, on the protective casing of this measurement flue gas below the flange of thermopair, be set with collet; between collet and protective casing, fill ceramic fiber cotton; effectively reduce the impact of non-heat acquisition zone on the measuring point temperature; and can improve protective casing anticorrosive property on non-measuring junction, increase the service life.
4, the utility model is simple in structure, design science is reasonable, making is simple, cost is lower, extended serviceable life, fast, the shock-resistant corrosive effect of thermometric speed is good.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that the A-A of Fig. 1 is to partial sectional view;
Fig. 3 is the B section enlarged drawing of Fig. 2.
Embodiment
The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
A kind of measurement flue gas thermopair; comprise terminal box 1, thermometric core body 7 and protective casing 2; protective casing is packed in the terminal box lower end; the thermometric core body is packed in the terminal box lower end in protective casing; the protective casing outer wall is fixed with flange 4; on flange, be provided with hanger 3; on protective casing below flange, be set with collet 5; between collet and protective casing, fill ceramic fiber cotton; it is fixedly mounted with annular air scoop 6 in the protective casing lower end, between annular air scoop and protective casing, form thermal-arrest thermometric chamber, center 8.This annular air scoop quantity is 2-5, and the present embodiment annular air scoop quantity shown in the drawings is 3, and coaxial spaced setting from inside to outside forms auxiliary thermal-arrest thermometric chamber 9 between internal layer annular air scoop and outer annular air scoop.
Annular air scoop has been installed on the protective casing of the utility model measuring junction; when measuring; irregular flue gas stream is steadily passed through the protective casing measuring junction by annular air scoop; the thermometric core body is by measuring center thermal-arrest thermometric cavity temperature; realized measuring accurately; the setting of multi-layer annular guide ring is conducive to thermometric accuracy more, after especially having auxiliary thermal-arrest thermometric chamber.
Claims (4)
1. measure the flue gas thermopair for one kind; comprise terminal box, thermometric core body and protective casing; protective casing is packed in the terminal box lower end; the thermometric core body is packed in the terminal box lower end in protective casing; it is characterized in that: in the protective casing lower end, be fixedly mounted with annular air scoop, between annular air scoop and protective casing, form thermal-arrest thermometric chamber, center.
2. measurement flue gas thermopair according to claim 1 is characterized in that: described annular air scoop quantity is 2-5, and coaxial spaced setting from inside to outside forms and assists thermal-arrest thermometric chamber between internal layer annular air scoop and outer annular air scoop.
3. measurement flue gas thermopair according to claim 1, it is characterized in that: described protective casing outer wall is fixed with flange, on flange, is provided with hanger.
4. measurement flue gas thermopair according to claim 3, is characterized in that: on the protective casing below described flange, be set with collet, between collet and protective casing, fill ceramic fiber cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202759582U CN203298890U (en) | 2013-05-21 | 2013-05-21 | Thermocouple for measuring flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202759582U CN203298890U (en) | 2013-05-21 | 2013-05-21 | Thermocouple for measuring flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203298890U true CN203298890U (en) | 2013-11-20 |
Family
ID=49574895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202759582U Withdrawn - After Issue CN203298890U (en) | 2013-05-21 | 2013-05-21 | Thermocouple for measuring flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203298890U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245431A (en) * | 2013-05-21 | 2013-08-14 | 天津市中环温度仪表有限公司 | Thermocouple for measuring smoke |
| CN109974879A (en) * | 2019-03-15 | 2019-07-05 | 上海电仪仪器仪表有限公司 | A kind of thermocouple thermometer structure |
-
2013
- 2013-05-21 CN CN2013202759582U patent/CN203298890U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245431A (en) * | 2013-05-21 | 2013-08-14 | 天津市中环温度仪表有限公司 | Thermocouple for measuring smoke |
| CN103245431B (en) * | 2013-05-21 | 2016-03-02 | 天津市中环温度仪表有限公司 | Measure flue gas thermocouple |
| CN109974879A (en) * | 2019-03-15 | 2019-07-05 | 上海电仪仪器仪表有限公司 | A kind of thermocouple thermometer structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131120 Effective date of abandoning: 20160302 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20131120 Effective date of abandoning: 20160302 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |