CN211085480U - Boiler on-line temperature measuring system - Google Patents
Boiler on-line temperature measuring system Download PDFInfo
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- CN211085480U CN211085480U CN201921647992.1U CN201921647992U CN211085480U CN 211085480 U CN211085480 U CN 211085480U CN 201921647992 U CN201921647992 U CN 201921647992U CN 211085480 U CN211085480 U CN 211085480U
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Abstract
The utility model discloses an online temperature measurement system of boiler, it includes far infrared thermoscope, temperature measurement camera lens, power cable, communication cable, and its characterized in that has set up clean antifouling system of air, tertiary cooling protection system, the thermal-insulated protective system of support, and communication cable one end links to each other with the far infrared thermoscope, and one end links to each other with factory DCS system, realizes the online transmission of temperature signal to DCS system. The utility model discloses can effectively prevent the stifled hole of light passageway coking, prevent that the far infrared thermoscope from being heated and destroying, safe and reliable, practicality are strong.
Description
Technical Field
The utility model relates to a temperature measurement system specifically is an online temperature measurement system of boiler.
Background
In a coal-fired boiler, in order to monitor the flame in a boiler furnace and the temperature of flue gas in a flue and provide a basis for combustion adjustment, soot blowing and operation guidance, a temperature measuring device is often installed on a water-cooled wall or a flue wall of the boiler furnace, and a far infrared temperature measuring device is mostly used in the existing furnace temperature measuring device. However, the following problems exist in the using process: firstly, the problem of inaccurate measurement caused by dust dirt on a probe (lens) of a temperature measuring device due to more dust in a hearth or a flue; secondly, because high-temperature heat radiation and heat conduction in the hearth or the flue are serious, the temperature measuring device lacks good cooling protection, so that the problem of over-temperature damage or performance reduction of the temperature measuring instrument is caused; and thirdly, some temperature measuring devices adopt air cooling too fast, and cooling air is coked by molten soot particles in high-temperature flue gas in a hearth or a flue, so that the front end of a light guide hole is coked and blocked, and the problem of incapability of monitoring is caused. The invention aims to solve the problems of the existing boiler and flue temperature measuring devices, and researches an online boiler temperature measuring system by combining years of application experience.
Disclosure of Invention
The problems that a probe (lens) of the temperature measuring device is dirty, the front end of a light guide hole is coked and blocked, the temperature measuring instrument is damaged due to overtemperature are solved, the temperature measuring device can run durably and well, and a reference basis is provided for boiler furnace combustion optimization adjustment, flue heating surface soot blowing guidance and safe running.
The on-line boiler temperature measuring system comprises a far infrared temperature measuring instrument, a temperature measuring lens, a power cable and a communication cable, and is characterized in that an air cleaning and antifouling system, a three-level cooling protection system and a support heat insulation protection system are arranged, one end of the communication cable is connected with the far infrared temperature measuring instrument, the other end of the communication cable is connected with a factory DCS system, and the on-line transmission of temperature signals to the DCS system is realized.
The air cleaning and antifouling system consists of a compressed air source, an air main pipe, a main pipe regulating valve, an air-water separator, a drain pipe, a main pipe 27, a primary pressure-regulating air cleaner, an inlet hose, an inlet pipe valve and a secondary pressure-regulating air cleaner; except that the drain pipe is connected with the bottom of the gas-water separator, the other parts are sequentially connected, and the secondary pressure regulating air cleaner is fixed on the rear bracket through bolts; the main pipe regulating valve plays a role in regulating the flow of compressed air, and the primary and secondary pressure regulating air cleaners play roles in air purification and flow fine adjustment; except the inlet hose, the rest parts are made of stainless steel materials. The air cleaning and anti-fouling system ensures that compressed air finally reaches the secondary pressure-regulating air cleaner from the air source, and has the functions of supplying air, removing water, cleaning and regulating pressure for the required compressed air.
The three-stage cooling protection system is composed of an outlet pipe valve, an outlet hose, a cooling jacket inlet pipe valve, a cooling jacket outlet pipe valve, an outlet hose, a rear support inlet pipe valve, a rear support, a branch pipe adjusting valve, a branch pipe, a lower hose, a coil pipe lower inlet pipe valve, a lower coil pipe, an upper hose, a coil pipe upper inlet pipe valve and an upper coil pipe.
One end of the outlet pipe valve is connected with the secondary pressure-regulating air cleaner, and the other end of the outlet pipe valve is connected with the cooling jacket inlet pipe valve through the outlet hose to provide a basis for guiding ash, so that the operation safety of the boiler is improved.
Drawings
FIG. 1 is a front view of the present invention
Fig. 2 is a partial top view of the present invention.
Detailed Description
Examples of embodiments of the invention are provided below to enhance the understanding of this patent. These examples are merely illustrative of the present invention and do not limit the scope of the present invention.
The invention is further described with reference to the accompanying drawings.
The on-line boiler temperature measuring system comprises a far infrared temperature measuring instrument 11, a temperature measuring lens 12, a power cable 13 and a communication cable 15, and is characterized in that an air cleaning and antifouling system, a three-stage cooling protection system and a support heat insulation protection system are arranged, one end of the communication cable 15 is connected with the far infrared temperature measuring instrument 11, the other end of the communication cable is connected with a factory DCS system, and the on-line transmission of temperature signals to the DCS system is achieved.
The air cleaning and anti-fouling system is composed of a compressed air source 31, an air main pipe 30, a main pipe regulating valve 29, an air-water separator 28, a drain pipe 40, a main pipe 27, a primary pressure-regulating air cleaner 23, an inlet hose 21, an inlet pipe valve 38 and a secondary pressure-regulating air cleaner 37; except that the drain pipe 40 is connected to the bottom of the gas-water separator 28, the other parts are sequentially connected, and the secondary pressure regulating air cleaner 37 is fixed on the rear bracket 7 through a bolt 39; the main pipe regulating valve 29 plays a role in regulating the flow of compressed air, and the primary and secondary pressure regulating air cleaners play a role in air purification and flow fine adjustment; except the inlet hose 21, the rest parts are made of stainless steel materials. The air cleaning and anti-fouling system ensures that the compressed air finally reaches the secondary pressure-regulating air cleaner 37 from the air source 31, and has the functions of supplying air, removing water, cleaning and regulating pressure for the required compressed air.
The three-stage cooling protection system is composed of an outlet pipe valve 36, an outlet hose 9, a cooling jacket inlet pipe valve 10, a cooling jacket 14, a cooling jacket outlet pipe valve 16, an outlet hose 17, a rear support inlet pipe valve 18, a rear support 7, a branch pipe 26, a branch pipe adjusting valve 25, a branch pipe 24, a lower hose 5, a coil lower inlet pipe valve 4, a lower coil 3, an upper hose 20, a coil upper inlet pipe valve 19 and an upper coil 32 of a two-stage pressure-regulating air cleaner 37.
One end of the outlet pipe valve 36 is connected with the secondary pressure-regulating air cleaner 37, the other end of the outlet pipe valve is connected with the cooling jacket inlet pipe valve 10 through the outlet hose 9, the cooling jacket inlet pipe valve 10 is fixed on the cooling jacket 14, the cooling jacket outlet pipe valve 16 is fixed on the other side of the cooling jacket, the cooling jacket outlet pipe valve 16 is connected with the rear support inlet pipe valve 18 through the outlet hose 17, and the rear support inlet pipe valve 18 is fixed on the rear support 7; the cooling jacket 14 and the rear support 7 are made of stainless steel materials, the cooling jacket 14 and a cylindrical shell of the far infrared thermometer 11 are fixed together, and one end of the far infrared thermometer 11 is fixed together with an internal thread at one end of the rear support 7 through an external thread; the compressed air reaches the cavity formed by the cooling jacket 14 and the far infrared thermometer 11 by the second-stage pressure-regulating air cleaner 37, and cools the far infrared thermometer 11 in a third stage, and the compressed air is dried.
Claims (4)
1. The on-line temperature measuring system of the boiler comprises a far infrared thermometer, a temperature measuring lens, a power cable and a communication cable, and is characterized in that an air cleaning and antifouling system, a three-stage cooling protection system and a support heat insulation protection system are arranged, a second-stage pressure regulating air cleaner (37) of the air cleaning and antifouling system is fixed on a rear support (7) of the three-stage cooling protection system through a bolt (39), one end of a branch pipe (26) of the three-stage cooling protection system is communicated with a main pipe (27) of the air cleaning and antifouling system, a lower coil (3) and an upper coil (32) of the three-stage cooling protection system are fixed with a middle support (2) of the support heat insulation protection system, the other end of the middle support (2) of the support heat insulation protection system and a rear heat insulation pad (6) are fixed with one end of the rear support (7) of the three-stage cooling protection system through a, a cooling jacket (14) of the three-level cooling protection system is fixed with a cylindrical shell of a far infrared thermometer (11), one end of the far infrared thermometer (11) is fixed with an internal thread of one end of a rear support (7) of the three-level cooling protection system through an external thread, one end of a communication cable is connected with the far infrared thermometer, and the other end of the communication cable is connected with a factory DCS system, so that the temperature signal is transmitted to the DCS system on line.
2. The boiler on-line temperature measurement system according to claim 1, wherein: the air cleaning and anti-fouling system consists of a compressed air source, an air main pipe, a main pipe regulating valve, an air-water separator, a drain pipe, a main pipe (27), a primary pressure-regulating air cleaner, an inlet hose, an inlet pipe valve and a secondary pressure-regulating air cleaner; except that the drain pipe is connected with the bottom of the gas-water separator, the other parts are connected in sequence; except the inlet hose, the rest parts are made of stainless steel materials.
3. The on-line boiler temperature measurement system according to claim 1, wherein the provided three-stage cooling protection system comprises an outlet pipe valve, an outlet hose, a cooling jacket inlet pipe valve, a cooling jacket outlet pipe valve, an outlet hose, a rear support inlet pipe valve, a rear support, a branch pipe, a lower hose, a coil pipe lower inlet pipe valve, a lower coil pipe, an upper hose, a coil pipe upper inlet pipe valve and an upper coil pipe part of the secondary pressure-regulating air cleaner, the cooling jacket and the rear support are made of stainless steel materials, the projection of the central lines of the lower coil pipe and the upper coil pipe on a horizontal plane forms an included angle, and the included angle α is less than or equal to 60 ℃.
4. The boiler on-line temperature measurement system according to claim 1, wherein: the support heat insulation protection system comprises a base, a front support, a front heat insulation pad, a middle support, a rear heat insulation pad, a front fixing bolt and nut assembly and a rear fixing bolt and nut assembly; one end of the front bracket is fixed with the base, the other end of the front bracket is fixed with the front heat-insulating pad and one end of the middle bracket through a front fixing bolt and nut assembly, and the base is fixed with the furnace chamber wall or the flue wall of the boiler; the inner hole of the front bracket is processed into a multi-head guide thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921647992.1U CN211085480U (en) | 2019-09-23 | 2019-09-23 | Boiler on-line temperature measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921647992.1U CN211085480U (en) | 2019-09-23 | 2019-09-23 | Boiler on-line temperature measuring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211085480U true CN211085480U (en) | 2020-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921647992.1U Active CN211085480U (en) | 2019-09-23 | 2019-09-23 | Boiler on-line temperature measuring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211085480U (en) |
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2019
- 2019-09-23 CN CN201921647992.1U patent/CN211085480U/en active Active
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