CN201206459Y - Oilfield heating-furnace for implementing high-temperature detection of furnace tube - Google Patents
Oilfield heating-furnace for implementing high-temperature detection of furnace tube Download PDFInfo
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- CN201206459Y CN201206459Y CNU2008200940661U CN200820094066U CN201206459Y CN 201206459 Y CN201206459 Y CN 201206459Y CN U2008200940661 U CNU2008200940661 U CN U2008200940661U CN 200820094066 U CN200820094066 U CN 200820094066U CN 201206459 Y CN201206459 Y CN 201206459Y
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- furnace
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- temperature
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- heating furnace
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Abstract
An oil field heating furnace for achieving the high temperature detection of a furnace tube, and belongs to the technical field of the high temperature detection and the control of the furnace tube of a heating furnace used in an oil field. The heating furnace comprises a furnace wall, a furnace chamber and a burner arranged at the mouth of the furnace chamber, and is characterized in that a temperature detecting component is arranged on the furnace wall at the spray nozzle of the burner; the temperature detecting component is connected with a temperature transmitter arranged outside the furnace, as well as a programmable controller and a temperature data display through an extension wire in the furnace; the temperature detecting component is tightly attached on the steel plate of the furnace wall, and comprises an outer sleeve and an electro thermal coupling wire in a sleeve core; and magnesium powder or porcelain powder is arranged between the outer sleeve and the electro thermal coupling wire in the outer sleeve core. The heating furnace has the advantages that the structure is simple, the temperature on the surface of the furnace tube of the fire tube type heating furnace tube can be detected accurately, and the temperature on the surface of the furnace tube and the fire tube can be displayed on a real time basis, thereby completely solving the occurrence of sleeve explosion accidents, reducing the damage probability of a furnace body, and prolonging the service life of the furnace body.
Description
Technical field:
The utility model relates to a kind of oil field heating furnace of realizing that boiler tube high temperature detects, and it belongs to the heating furnace tube high temperature Detection ﹠ Controling technical field of using in the oil field.
Background technology:
There are two kinds of forms in existing oil field with heating furnace, and a kind of is water jacket furnace, and another kind is a fire tube stove.The characteristics of fire tube stove are, the flame of burner is directly in the burner hearth internal combustion, and flame directly contacts steel plate, and the medium in the stove is water or oil.When heating furnace is loaded when big, the temperature of steel plate has surpassed upper limit permissible value sometimes, often makes steel plate " bulge " to burn and leak when serious, causes the accident.But existing fire tube stove does not possess the thermometric function of steel plate, to the accident that burns out heating furnace is often taken place, and whenever burns out 1 in heating furnace, and price for repairing is ten thousand yuans of 25-30, can cause huge loss to the producer.Therefore, in time grasp very necessity of burner hearth steel plate operating temperature at work.Utilizing the infrared temperature detector that the temperature of burner hearth steel plate is detected in the prior art, mainly is the mode that adopts from the surface temperature of burner observation steel plate.But because there is the existence of flame at the burner place, its actual observation be flame temperature, be not to be the temperature of steel plate.The temperature of another kind of solution steel plate is too high, the method that phenomenon such as " bulge " damage occurs, it is the scheme that in burner hearth, solves, this scheme is the flame zone at burner, be that one deck refractory brick is laid at the inner position near burner of burner hearth, the steel plate that can guarantee the inner position near burner of burner hearth like this is overtemperature not, is not burnt out.But such scheme has aggravated not to be provided with in the burner hearth steel plate bulge phenomenon at the position of refractory brick.Address the above problem, must be able to realize temperature test,, with temperature control in the burner hearth within the specific limits, thereby guarantee that steel plate does not produce bulge phenomenon, further avoid burning leakage and cause the accident so that in time adjust temperature in the stove to surface of steel plate.
Summary of the invention:
The purpose of this utility model is to provide a kind of surface temperature with steel plate in the accurate measurement burner hearth, and in time thermotonus is given the oil field heating furnace of the boiler tube the realized high temperature inspection of demonstration, control device.
The purpose of this utility model is achieved in that
A kind of oil field heating furnace of realizing that boiler tube high temperature detects, it comprises furnace wall, burner hearth and is arranged on the burner of stockhole, the furnace wall that it is characterized in that the jet place of described burner is provided with a detector unit, and described detector unit is connected with the temperature data display by the extended line in the stove temperature transmitter and the programmable controller outer with being arranged on stove.
Described detector unit is close on the steel plate of furnace wall, and described detector unit comprises the electric heating fibre of lotus root in an outer tube and the tube core, is filled with magnesia powder or porcelain powder between the electric heating fibre of lotus root in described outer tube and overcoat tube core.
The outer tube of described detector unit is an alloy pipe.
The galvanic couple silk of described detector unit is that tungsten-rhenium alloy is made.
Be provided with between the steel plate of described detector unit and furnace wall and be used for fixing the pad that is connected detector unit.
Around the jet of described burner, be provided with refractory brick.
The described thickness that is arranged on the jet refractory brick on every side of burner drops to 10-15mm.
The utility model is simple in structure, accurate detection to the fire catridge heater tube skin temperature, the surface temperature height that shows boiler tube and fire tube in real time, the foundation of operation is provided for the operative employee, just adjust the heating furnace load according to temperature, stop overtemperature, thoroughly solved the generation of " booster " accident, receive Expected Results.Solve the difficult problem that the flame zone in stove for a long time can't detect tube skin temperature, reduced the damage chance of body of heater, prolonged the application life of body of heater.
Description of drawings:
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the structural representation of detector unit of the present utility model
Fig. 3 is that the signal of the thermocouple of detector unit of the present utility model transmits schematic diagram
The specific embodiment:
Below in conjunction with accompanying drawing 1, Fig. 2, Fig. 3 is embodiment of the present utility model, and the utility model is further detailed:
In the utility model, comprise furnace wall 1, burner hearth 3 and be arranged on the burner 4 of stockhole that directly be welded with detector unit 7 on steel plate 11 surfaces of the furnace wall at the jet place of described burner, as shown in fig. 1,8 is the solder joint of detector unit 7.The detector unit 7 of directly will realizing like this is welded on the mode on steel plate 11 surfaces of furnace wall, has realized the contact detection of steel plate, has reduced the influence of the flame of burner port to probe temperature, has guaranteed the accuracy of detected temperatures.Because the steel heat transfer property is better, after the high temperature of flame passes on the steel plate, passes to the medium 2 in the stove then.The hearth wall of described oil field heating furnace is an interlayer, and being provided with cooling in hearth wall, use medium, the medium 2 in the described hearth wall can be oily, also can be water, these media be 70-90 ℃ by controlling temperature.Utilize this characteristics, it is 410-430 ℃ that the contact temperature that makes detector unit 7 is reduced to surface of steel plate by 1200-1300 ℃ of flame.For the accuracy that guarantees to detect, described detector unit 7 is close to steel plate 11 surface soldered of furnace wall, described detector unit 7 comprises the electric heating fibre of lotus root 73 in an outer tube 71 and the tube core, is filled with magnesia powder or porcelain powder between the electric heating fibre of lotus root 73 in described outer tube 71 and overcoat tube core.Described detector unit 7 is connected with temperature data display 10 by the extended line in the stove 74 temperature transmitter 9 and the programmable controller outer with being arranged on stove, realizes transmission and the demonstration and the control of detection signal.On detector unit 7 and in the stove on the extended line 74, utilize high temperature resistant cement and magnesian heat transfer property poor, and the good heat-transfer between detector unit and extended line thereof and the steel plate, high temperature is stayed the isolation layer surface, the temperature of detector unit and extended line thereof and heated WATER AS FLOW MEDIUM or oil warm very nearly the same, play heat insulation and protective effect; The outer tube 71 of described detector unit 4 is an alloy pipe, heatproof is more than 1900 ℃, be filled with magnesia powder or porcelain powder between the electric heating fibre of lotus root 73 in described outer tube 71 and overcoat tube core, its heatproof is more than 1770 ℃, and insulation, the temperature thermocouple silk is a tungsten-rhenium alloy, 2200 ℃ of heatproofs, and heatproof is far above flame 1200-1300 ℃ temperature.For this reason, under above-mentioned dual thermal insulation protection measure, the detector unit continuously-running did not have and damages more than 5 years.As shown in Figure 3, the signal of telecommunication of detector unit output is received the method for temperature transmitter 9, and then receives on programmable controller and the temperature data display 10, finishes various demonstrations and control.Around the jet of described burner 4, be provided with refractory brick 6.Can effectively protect the steel plate 11 of the jet of burner 4 to avoid the high-temperature baking that continues like this.
Mounting method of the present utility model; shown in figure one; detector unit 7 is soldered directly on the steel plate 11 of burner hearth 3 inwalls; extended line 74 in its stove is under the protection of refractory material; extend to outside the stove, the extended line 74 of described detector unit 7 links to each other with temperature data display 10 with programmable controller with temperature transmitter 9.In the present embodiment, heated medium 2 is a water; After burner 4 was lighted, flame 5 directly contacted steel plate 11 and detector unit 7.Also be provided with refractory brick 6 around burner flame, protection steel plate 11 can hot-spot.In the present embodiment, the material of heating furnace is 20 steel, stipulates according to target GB6654: the surface temperature of steel plate is not more than 475 ℃
After the above-mentioned installation, the test of being correlated with, find out from test result:
1) when the heating furnace full load, its surface of steel plate temperature is 450 ℃ and is no more than national regulation.
2) when the heating furnace overburden, promptly 110% o'clock, the surface of steel plate temperature surpassed 10 ℃ of national standards for 485 ℃, illustrates that the heating furnace overload operation is unallowed.
3) material of steel is qualified, and actual temperature has surpassed the upper limit, still safe operation
4) the refractory brick thickness of insulation layer is unreasonable.Existing refractory brick thickness is 60mm, and causing the inside and outside steel plate temperature difference of refractory brick is about 185 ℃, actual should be at 30-40 ℃, more reasonable as its thickness is dropped to 10-15mm.Because refractory brick is blocked up, does not only protect steel plate, quicken the generation of " booster " accident in no refractory brick district on the contrary.Thereby abolish the mistake regulation that refractory brick can not attenuate.
5) adopting said method detects the surface of steel plate temperature in flame zone, and its error and standard thermometer relatively have only 2 ℃ in the time of 400 ℃, and be very accurate, realistic requirement fully.
Claims (7)
1, a kind of oil field heating furnace of realizing that boiler tube high temperature detects, it comprises furnace wall (1), burner hearth (2) and is arranged on the burner (4) of stockhole, the furnace wall that it is characterized in that the jet place of described burner is provided with a detector unit (7), and described detector unit (7) is connected with temperature data display (10) by the extended line (74) in the stove temperature transmitter (9) and the programmable controller outer with being arranged on stove.
2, the oil field heating furnace of the high temperature of the boiler tube realized described in claim 1 detection, it is characterized in that described detector unit (7) is close on the steel plate (11) of furnace wall, described detector unit (7) comprises the electric heating fibre of lotus root (73) in an outer tube (71) and the tube core, is filled with magnesia powder or porcelain powder between the electric heating fibre of lotus root (73) in described outer tube (71) and overcoat tube core.
3, the oil field heating furnace of the high temperature of the boiler tube realized described in claim 1 detection, the outer tube (71) that it is characterized in that described detector unit (7) is an alloy pipe.
4, the oil field heating furnace of the high temperature of the boiler tube realized described in claim 1 detection, the galvanic couple silk (73) that it is characterized in that described detector unit (7) are that tungsten-rhenium alloy is made.
5, the oil field heating furnace that detects of the high temperature of the boiler tube realized described in the claim 2 is characterized in that being provided with between the steel plate (11) of described detector unit (7) and furnace wall and is used for fixing the pad that is connected detector unit (7).
6, the oil field heating furnace of the detection of the boiler tube the realized high temperature described in claim 1 or 2 or 3 is characterized in that being provided with refractory brick (6) around the jet of described burner (4).
7, the oil field heating furnace of the high temperature of the boiler tube realized described in claim 5 detection is characterized in that the described thickness that is arranged on the jet refractory brick (6) on every side of burner (4) drops to 10-15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200940661U CN201206459Y (en) | 2008-05-26 | 2008-05-26 | Oilfield heating-furnace for implementing high-temperature detection of furnace tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200940661U CN201206459Y (en) | 2008-05-26 | 2008-05-26 | Oilfield heating-furnace for implementing high-temperature detection of furnace tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201206459Y true CN201206459Y (en) | 2009-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200940661U Expired - Lifetime CN201206459Y (en) | 2008-05-26 | 2008-05-26 | Oilfield heating-furnace for implementing high-temperature detection of furnace tube |
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| CN (1) | CN201206459Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213626A (en) * | 2010-04-07 | 2011-10-12 | 中国石油化工集团公司 | Temperature measurement gun for determining surface temperature of furnace tube |
-
2008
- 2008-05-26 CN CNU2008200940661U patent/CN201206459Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213626A (en) * | 2010-04-07 | 2011-10-12 | 中国石油化工集团公司 | Temperature measurement gun for determining surface temperature of furnace tube |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090311 |