CN103672847B - Steam injection boiler with convection section high-temperature alarm device and alarm method thereof - Google Patents
Steam injection boiler with convection section high-temperature alarm device and alarm method thereof Download PDFInfo
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- CN103672847B CN103672847B CN201310706035.2A CN201310706035A CN103672847B CN 103672847 B CN103672847 B CN 103672847B CN 201310706035 A CN201310706035 A CN 201310706035A CN 103672847 B CN103672847 B CN 103672847B
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000010793 Steam injection (oil industry) Methods 0.000 title abstract 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 230000005855 radiation Effects 0.000 claims abstract description 4
- 238000002347 injection Methods 0.000 claims description 42
- 239000007924 injection Substances 0.000 claims description 42
- 238000007664 blowing Methods 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Abstract
The invention provides a steam injection boiler with a convection section high-temperature alarm device and an alarm method thereof. Steam injection boiler includes through feedwater preheater and heat exchanger, steam injection boiler still includes convection current section high temperature alarm device, convection current section high temperature alarm device includes: the temperature control device comprises a first temperature measuring element, a second temperature measuring element, a third temperature measuring element, a temperature transmitter and a control element, wherein the input end of the control element is connected with the output end of the temperature transmitter through a lead and used for receiving a temperature signal of the temperature transmitter, and when a temperature value corresponding to the temperature signal exceeds a preset alarm temperature value, the control element sends an alarm signal and a fire extinguishing and blowing-out instruction to a control system of the steam injection boiler. According to the invention, three parameters of the temperature of the convection section inlet, the convection section outlet and the radiation section inlet are monitored and controlled according to the water shortage phenomenon of the convection section, and early warning is carried out on hidden troubles after internal leakage of the preheater and the heat exchanger, so that major accidents are avoided.
Description
Technical field
The present invention relates to a kind of warning device, particularly relate to a kind of injection boiler and the alarm method thereof with convection section high-temperature alarming device.
Background technology
Feedwater preheater is one of key equipment of injection boiler, belongs to high pressure inner and outer pipes structure, cannot detect, have certain potential safety hazard.And, existing injection boiler has the convection section, changeover portion and the radiant section that are communicated with successively, boiler heat-exchanger stress or corrosion cause the ftractureing phenomenon of interior leakage happens occasionally on injection boiler, once process not in time, the serious consequence such as will cause that injection boiler convection section scaling loss is scrapped, brings great economic loss.
Because the technology hidden danger that above-mentioned existing injection boiler exists, this Technology design people is based on research and field experience and professional knowledge for many years, hot and cold water will be caused directly to be mixed into radiant section after leaking in heat exchanger during actual use, convection section only has a small amount of water, the variation characteristic into, outlet temperature certainly will be caused like this, actively in addition improvement and bring new ideas, to realizing a kind of injection boiler with convection section high-temperature alarming device and the alarm method that can carry out early warning to the recessive hidden danger of preheater.
Summary of the invention
The object of this invention is to provide a kind of injection boiler with convection section high-temperature alarming device that can carry out early warning to the recessive hidden danger of preheater.
Another object of the present invention is to provide a kind of alarm method using above-mentioned injection boiler convection section high-temperature alarming device.
For achieving the above object, the present invention proposes a kind of injection boiler with convection section high-temperature alarming device, described injection boiler comprises the feed water preheater and heat exchanger that are connected by pipeline, described feed water preheater comprises outer tube and interior pipe, described heat exchanger comprises the convection section, changeover portion and the radiant section that are communicated with successively, described injection boiler also comprises convection section high-temperature alarming device, and described convection section high-temperature alarming device comprises:
First temperature element, is arranged on the pipeline between the outer tube outlet of described feed water preheater and the entrance of described convection section, for measuring the water temperature of convection section porch;
Second temperature element, is arranged on the pipeline between the outlet of described convection section and the inner tube inlet of described feed water preheater, for measuring the water temperature in convection section exit;
3rd temperature element, is arranged on the pipeline between the inner tube outlet of described feed water preheater and described radiant section entrance, for the water temperature of measuring radiation section porch;
Temperature transmitter, the input of described temperature transmitter is connected with described first temperature element, the second temperature element, the 3rd temperature element respectively by wire, for the treatment of the temperature sensor signal that described first temperature element, the second temperature element, the 3rd temperature element export, and be converted into temperature signal;
Control element, the input of described control element is connected by wire with the output of described temperature transmitter, for receiving the temperature signal of described temperature transmitter, when the temperature value that described temperature signal is corresponding exceeds preset alarm temperature value, described control element sends alarm signal and fire extinguishing blowing out instruction to the control system of injection boiler.
Have the injection boiler of convection section high-temperature alarming device as above, wherein, described first temperature element, the second temperature element, the 3rd temperature element are thermocouple.
Have the injection boiler of convection section high-temperature alarming device as above, wherein, described control element is Programmable Logic Controller.
Have the injection boiler of convection section high-temperature alarming device as above, wherein, described wire is two-wire system shielding compensating wire.
Have the injection boiler of convection section high-temperature alarming device as above, wherein, described temperature sensor signal is voltage signal, and described temperature signal is current signal.
Present invention also offers a kind of injection boiler convection section high temperature alarm method, this alarm method is used in above-mentionedly to be had in the injection boiler of convection section high-temperature alarming device, and described alarm method comprises:
Step a: the first temperature element, the second temperature element, the 3rd temperature element gather the temperature of convection section entrance, convection section outlet, radiant section entrance respectively, generate respective temperature sensor signal and are delivered to temperature transmitter;
Step b: each described temperature sensor signal is converted into temperature signal and is delivered to control element by temperature transmitter;
Step c: control element receives the temperature signal of described temperature transmitter and processes, when the temperature value that described temperature signal is corresponding exceeds preset alarm temperature value, described control element sends alarm signal and fire extinguishing blowing out instruction to the control system of injection boiler.
Injection boiler convection section high temperature alarm method as above, wherein, described temperature sensor signal is voltage signal, and described temperature signal is current signal.
Compared with prior art, the present invention has following characteristics and advantage:
The present invention, according to convection section lack of water phenomenon, carries out Monitoring and Controlling from convection section entrance, convection section outlet, radiant section inlet temperature three parameters, carries out early warning, avoid major accident to occur to the recessive hidden danger after leaking in preheater and heat exchanger.
Accompanying drawing explanation
Accompanying drawing described here only for task of explanation, and is not intended to limit scope disclosed by the invention by any way.In addition, the shape of each parts in figure and proportional sizes etc. are only schematic, for helping the understanding of the present invention, are not the shape and the proportional sizes that specifically limit each parts of the present invention.Those skilled in the art under the teachings of the present invention, can select various possible shape and proportional sizes to implement the present invention as the case may be.
Fig. 1 is the structural representation that the present invention has the injection boiler of convection section high-temperature alarming device.
Description of reference numerals:
1-feed water preheater; 2-heat exchanger; 3-convection section; 4-changeover portion; 5-radiant section; 6-temperature transmitter; 7-control element; 8-wire; 10-pipeline; 11-first temperature element; 12-second temperature element; 13-the 3rd temperature element.
Detailed description of the invention
By reference to the accompanying drawings with the description of the specific embodiment of the invention, can clearly understand details of the present invention.But the specific embodiment of the present invention described here, only for explaining object of the present invention, and can not to be understood as by any way be limitation of the present invention.Under the teachings of the present invention, technical staff can conceive based on distortion possible arbitrarily of the present invention, and these all should be regarded as belonging to scope of the present invention.
Please refer to Fig. 1, there is for the present invention the structural representation of the injection boiler of convection section high-temperature alarming device.As shown in Figure 1, the injection boiler with convection section high-temperature alarming device of the present invention, comprise the feed water preheater 1 and heat exchanger 2 that are connected by pipeline 10, feed water preheater 1 comprises outer tube and interior pipe, heat exchanger 2 comprises the convection section 3, changeover portion 4 and the radiant section 5 that are communicated with successively, described injection boiler also comprises convection section high-temperature alarming device, and described convection section high-temperature alarming device comprises: the first temperature element 11, second temperature element 12, the 3rd temperature element 13, temperature transmitter 6 and control element 7.Boiler feedwater is introduced into the outer tube of feed water preheater 1 via pipeline, then enters convection section 4, then flows out the interior pipe that convection section 4 enters feed water preheater 1 again, finally flows out into radiant section 5 by pipe in feed water preheater 1.Wherein, the first temperature element 11 is arranged on the pipeline between the outer tube outlet of feed water preheater 1 and the entrance of convection section 4, for measuring the water temperature of convection section 3 porch; Second temperature element 12 is arranged on the pipeline between the outlet of convection section 3 and the inner tube inlet of feed water preheater 1, for measuring the water temperature in convection section 3 exit; 3rd temperature element 13 is arranged on the pipeline between the inner tube outlet of feed water preheater 1 and radiant section 5 entrance, for the water temperature of measuring radiation section 5 porch; Temperature inversion measured by it is respective temperature sensor signal (voltage signal) by the first temperature element 11, second temperature element 12, the 3rd temperature element 13.The input of temperature transmitter 6 is connected with the first temperature element 11, second temperature element 12, the 3rd temperature element 13 respectively by wire 8, for the treatment of the temperature sensor signal that the first temperature element 11, second temperature element 12, the 3rd temperature element 13 export, and be converted into temperature signal (current signal); The input of control element 7 is connected by wire 8 with the output of temperature transmitter 6, for receiving the temperature signal of temperature transmitter 6 and this temperature signal is converted to corresponding current signal is delivered to display unit.When the temperature value that temperature signal is corresponding exceeds preset alarm temperature value in control element 7, control element 7 sends alarm signal and fire extinguishing blowing out instruction to the control system of injection boiler.
In the present embodiment, the first temperature element 11, second temperature element 12, the 3rd temperature element 13 are thermocouple.
In the present embodiment, control element 7 is Programmable Logic Controller (PLC).Certainly, other known control element also can be adopted, as long as required function of the present invention can be realized.
Further, wire 8 adopts two-wire system to shield compensating wire, to ensure the transmission of signal data.
The present invention is according to convection section 3 lack of water phenomenon, export from convection section 3 entrance, convection section 3, radiant section 5 inlet temperature three parameters carry out Monitoring and Controlling, namely the pipeline between the outlet of feed water preheater 1 outer tube and boiler convection section 3 installs a point for measuring temperature, namely settles a thermocouple temperature measurement element; And enter at pipe in feed water preheater, export each installation point for measuring temperature, namely settle a thermocouple temperature measurement element.Thermocouple adopts two-wire system shielding compensating wire, and be connected to temperature transmitter 6 signal input part, signal is delivered to PLC by output.PLC shows real-time temperature after being calculated by process on the touchscreen.Simultaneously PLC can set temperature height alarming value, and when the temperature value measured exceedes preset alarm temperature value, the control system to injection boiler sends alarm signal and fire extinguishing blowing out instruction.
Present invention also offers a kind of injection boiler convection section high temperature alarm method, this alarm method is used in above-mentionedly to be had in the injection boiler of convection section high-temperature alarming device, and this alarm method comprises:
Step a: the first temperature element, the second temperature element, the 3rd temperature element gather the temperature of convection section entrance, convection section outlet, radiant section entrance respectively, generate respective temperature sensor signal (voltage signal) and are delivered to temperature transmitter;
Step b: each described temperature sensor signal of temperature transmitter is converted into temperature signal (current signal) and is delivered to control element;
Step c: control element receives the temperature signal of temperature transmitter and processes, and judge whether the temperature value corresponding to this temperature signal is greater than preset alarm temperature value in control element, when the temperature value that described temperature sensor signal is corresponding exceeds preset alarm temperature value, control element sends alarm signal and fire extinguishing blowing out instruction to the control system of injection boiler.
For the detailed explanation of the respective embodiments described above, its object is only to make an explanation to the present invention, so that the present invention can be understood better, but, it is limitation of the present invention that these descriptions can not become with any explanation, particularly, each feature described in various embodiments also can be combined mutually, thus form other embodiments, except there being clearly contrary description, these features should be understood to can be applied in any one embodiment, and are also not only confined to described embodiment.
Claims (7)
1. one kind has the injection boiler of convection section high-temperature alarming device, described injection boiler comprises the feed water preheater and heat exchanger that are connected by pipeline, described feed water preheater comprises outer tube and interior pipe, described heat exchanger comprises the convection section, changeover portion and the radiant section that are communicated with successively, it is characterized in that, described injection boiler also comprises convection section high-temperature alarming device, and described convection section high-temperature alarming device comprises:
First temperature element, is arranged on the pipeline between the outer tube outlet of described feed water preheater and the entrance of described convection section, for measuring the water temperature of convection section porch;
Second temperature element, is arranged on the pipeline between the outlet of described convection section and the inner tube inlet of described feed water preheater, for measuring the water temperature in convection section exit;
3rd temperature element, is arranged on the pipeline between the inner tube outlet of described feed water preheater and described radiant section entrance, for the water temperature of measuring radiation section porch;
Temperature transmitter, the input of described temperature transmitter is connected with described first temperature element, the second temperature element, the 3rd temperature element respectively by wire, for the treatment of the temperature sensor signal that described first temperature element, the second temperature element, the 3rd temperature element export, and be converted into temperature signal;
Control element, the input of described control element is connected by wire with the output of described temperature transmitter, for receiving the temperature signal of described temperature transmitter, when the temperature value that described temperature signal is corresponding exceeds preset alarm temperature value, described control element sends alarm signal and fire extinguishing blowing out instruction to the control system of injection boiler.
2. have the injection boiler of convection section high-temperature alarming device as claimed in claim 1, it is characterized in that, described first temperature element, the second temperature element, the 3rd temperature element are thermocouple.
3. have the injection boiler of convection section high-temperature alarming device as claimed in claim 1, it is characterized in that, described control element is Programmable Logic Controller.
4. have the injection boiler of convection section high-temperature alarming device as claimed in claim 1, it is characterized in that, described wire is two-wire system shielding compensating wire.
5. have the injection boiler of convection section high-temperature alarming device as claimed in claim 1, it is characterized in that, described temperature sensor signal is voltage signal, and described temperature signal is current signal.
6. an injection boiler convection section high temperature alarm method, is characterized in that, described alarm method comprises:
Step a: the first temperature element, the second temperature element, the 3rd temperature element gather the temperature of convection section entrance, convection section outlet, radiant section entrance respectively, generate respective temperature sensor signal and are delivered to temperature transmitter;
Step b: each described temperature sensor signal is converted into temperature signal and is delivered to control element by temperature transmitter;
Step c: control element receives the temperature signal of described temperature transmitter and processes, when the temperature value that described temperature signal is corresponding exceeds preset alarm temperature value, described control element sends alarm signal and fire extinguishing blowing out instruction to the control system of injection boiler.
7. injection boiler convection section high temperature alarm method as claimed in claim 6, it is characterized in that, described temperature sensor signal is voltage signal, and described temperature signal is current signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310706035.2A CN103672847B (en) | 2013-12-19 | 2013-12-19 | Steam injection boiler with convection section high-temperature alarm device and alarm method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310706035.2A CN103672847B (en) | 2013-12-19 | 2013-12-19 | Steam injection boiler with convection section high-temperature alarm device and alarm method thereof |
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| Publication Number | Publication Date |
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| CN103672847A CN103672847A (en) | 2014-03-26 |
| CN103672847B true CN103672847B (en) | 2015-07-08 |
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| CN201310706035.2A Active CN103672847B (en) | 2013-12-19 | 2013-12-19 | Steam injection boiler with convection section high-temperature alarm device and alarm method thereof |
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| CN112178618A (en) * | 2019-07-02 | 2021-01-05 | 中国石油天然气股份有限公司 | Steam injection boiler fault alarm method, device and system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4375273A (en) * | 1980-05-19 | 1983-03-01 | Samson Aktiengesellschaft | Combustion automatic control system |
| JP2736344B2 (en) * | 1988-05-20 | 1998-04-02 | ウエスチングハウス・エレクトリック・コーポレーション | Measuring system to monitor fluid condition |
| CN101865450A (en) * | 2010-06-08 | 2010-10-20 | 辽河石油勘探局总机械厂 | Offshore platform thermal recovery fuel oil or fuel gas steam injection boiler |
| CN102444885A (en) * | 2011-12-19 | 2012-05-09 | 上海望特能源科技有限公司 | Method for avoiding overheat tube burst in tubular boiler of power station boiler |
| CN103216812A (en) * | 2013-04-15 | 2013-07-24 | 王衡 | Method for on-line monitoring and alarming of convection heating face flue gas temperature field of power station boiler |
| CN103388816A (en) * | 2013-07-29 | 2013-11-13 | 哈尔滨鑫北源电站设备制造有限公司 | Oil field steam-injection boiler overheated steam injection system |
| CN203810371U (en) * | 2013-12-19 | 2014-09-03 | 中国石油天然气股份有限公司 | Steam injection boiler with convection section high-temperature alarm device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8008603B2 (en) * | 2007-08-31 | 2011-08-30 | Mackenzie Bruce G | Boiler protection apparatus and method |
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2013
- 2013-12-19 CN CN201310706035.2A patent/CN103672847B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4375273A (en) * | 1980-05-19 | 1983-03-01 | Samson Aktiengesellschaft | Combustion automatic control system |
| JP2736344B2 (en) * | 1988-05-20 | 1998-04-02 | ウエスチングハウス・エレクトリック・コーポレーション | Measuring system to monitor fluid condition |
| CN101865450A (en) * | 2010-06-08 | 2010-10-20 | 辽河石油勘探局总机械厂 | Offshore platform thermal recovery fuel oil or fuel gas steam injection boiler |
| CN102444885A (en) * | 2011-12-19 | 2012-05-09 | 上海望特能源科技有限公司 | Method for avoiding overheat tube burst in tubular boiler of power station boiler |
| CN103216812A (en) * | 2013-04-15 | 2013-07-24 | 王衡 | Method for on-line monitoring and alarming of convection heating face flue gas temperature field of power station boiler |
| CN103388816A (en) * | 2013-07-29 | 2013-11-13 | 哈尔滨鑫北源电站设备制造有限公司 | Oil field steam-injection boiler overheated steam injection system |
| CN203810371U (en) * | 2013-12-19 | 2014-09-03 | 中国石油天然气股份有限公司 | Steam injection boiler with convection section high-temperature alarm device |
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| CN103672847A (en) | 2014-03-26 |
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