CN204006685U - A kind of structure that prevents the fouling of oil field heating furnace fire tube - Google Patents
A kind of structure that prevents the fouling of oil field heating furnace fire tube Download PDFInfo
- Publication number
- CN204006685U CN204006685U CN201420181537.8U CN201420181537U CN204006685U CN 204006685 U CN204006685 U CN 204006685U CN 201420181537 U CN201420181537 U CN 201420181537U CN 204006685 U CN204006685 U CN 204006685U
- Authority
- CN
- China
- Prior art keywords
- fire tube
- heating furnace
- oil field
- field heating
- semicircle annular
- 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- Withdrawn - After Issue
Links
Abstract
Prevent a structure for oil field heating furnace fire tube fouling, comprise semi-cylindrical fire tube shell, semicircle annular header, waterworks and connecting line; Semi-cylindrical fire tube shell is covered in oil field heating furnace fire tube the first half, forms semicircle annular protrusion at fire tube stiffening ring place, forms the continuous chuck of the semicircle annular space along fire tube circumferential and axial with fire tube upper surface; By front and back deflector, wash away region, stiffening ring front and back, realize washing away without dead band whole fire tube upper surface; Semicircle annular header uniform distribution mixed liquor, and enter chuck through nozzle; Waterworks wash away mixed liquor for device provides high pressure; The heat exchange of this device strengthening fire tube, avoids fire tube hot-spot, and by washing away scale removal, improving thermal efficiency of heating furnace fouling, the bulge of effective anti-fire-stopping pipe simultaneously, has guaranteed the long period safe operation of heating furnace.
Description
Technical field
The utility model belongs to oilfield exploitation field, is specifically related to a kind of structure that prevents the fouling of oil field heating furnace fire tube.
Background technology
Direct-type fire barrel heating furnace, be called for short fire cylinder stove, it is widely used firing equipment on oil field, in order to the multiphase mixture heating in field produces, (comprise crude oil, water, solid silt and other impurity, hereinafter to be referred as mixed liquor), wherein fire tube is the main heater of heating furnace, and fuel is lighted, burnt by the burner of a side in fire tube inside, manages outer mixed liquor and fire tube outer wall heat convection.This heating furnace has following shortcoming: first, fire tube surface mixed liquor flowing velocity is slower, and heat transmission not in time; Fire tube being subject to is vertically thermoae inhomogeneous, higher near the fire tube wall temperature of burner side.Secondly, because mixed liquor directly contacts fire tube outer wall, silt can be deposited in fire tube upper surface, and the calcium in mixed liquor, magnesium inorganic salts also can be heated and separate out, and is gathered in fire tube surface and forms hard scale.In addition, along with going deep into of oil field development degree, after the application of tertiary oil recovery technology, especially oilfield injection, note ternary, composition and the change of properties of oil field mining liquid are larger, and viscosity increases, and very easily forms dirt, has further worsened the working environment of fire tube.In actual production, find, the most serious position of fouling scaling loss occurs in the top of fire tube refractory brick outlet 300～500mm, and dirt thickness can reach 50mm.This is that the silt in mixed liquor, organic impurities etc. are easy to be heated and separate out, and cause fouling because fire tube wall surface temperature is higher herein, further worsen and conduct heat, finally make steel herein avoid bearing all the time high temperature, mechanical strength declines, and easily deforms, bulge.
For overcoming the above problems, patent CN201416415Y proposes " a kind of energy-conservation scale prevention device of oil field heating furnace ", on fire tube surface, integrated sleeve and injector is installed, and by setting up to flow on fire tube surface, avoids fouling.But this device is not suitable for the fire tube with outer stiffening ring, and integral structure cannot dismantle, and is difficult to cleaning and maintenance.
Summary of the invention
The problem existing for solving above-mentioned prior art, the utility model provides a kind of structure that prevents the fouling of oil field heating furnace fire tube, this device can form and strongly wash away on the fire tube surface with outer stiffening ring, enhanced heat exchange, prevent dirt deposition simultaneously, and can dismantle, can realize periodic cleaning maintenance.
For achieving the above object, the utility model adopts following technical scheme:
A kind of structure that prevents the fouling of oil field heating furnace fire tube, comprise the semi-cylindrical fire tube shell 8 that is coated on oil field heating furnace fire tube 4 the first half, described semi-cylindrical fire tube shell 8 forms the continuous chuck of the semicircle annular space along oil field heating furnace fire tube 4 circumferential and axial with oil field heating furnace fire tube 4 upper surfaces, inlet side in the continuous chuck of semicircle annular space arranges semicircle annular header 3, and along a plurality of nozzles 5 of semicircle annular header 3 circumferential arrangement, spraying in semi-cylindrical fire tube shell 8 of nozzle 5, described semicircle annular header 3 with come liquid pipeline to be connected, fire tube stiffening ring 10 places that are positioned at oil field heating furnace fire tube 4 at described semi-cylindrical fire tube shell 8 form semicircle annular protrusion 11, and at semicircle annular protrusion 11 two ends to semi-cylindrical fire tube shell 8 inner sides, the front and back of fire tube stiffening ring 10 arrange respectively front flow guiding plate 15 and rear deflector 16.
Described semi-cylindrical fire tube shell 8 is fixing by bolt 13 with the band steel that is welded on oil field heating furnace fire tube 4 surfaces at mixed liquor inlet side and oil field heating furnace fire tube 4 both sides, and is sealed.
Adopt two kinds of modes that hydraulic oil water mixed liquid is provided, a kind of is that water pump 6 is placed in outside fire tube heater 1, extracts the interior low pressure mixed liquor of fire tube heater 1, forms hydraulic oil water mixed liquid and enter semicircle annular header 3 after water pump 6 pressurizations; Another kind is that jet pump 7 is placed in oil field heating furnace 1 inside, be immersed in the mixed liquor in oil field heating furnace 1, the hydraulic oil water mixed liquid that enters oil field heating furnace 1 from imported valve 9 enters jet pump 7, draws after the low pressure liquid mixing in oil field heating furnace 1, enters semicircle annular header 3.
Described front flow guiding plate 15 and rear deflector 16, according to stiffening ring 10 front and back mobility status, are got different length c and setting angle α.
Described front flow guiding plate 15 and rear deflector 16 are welded in semi-cylindrical fire tube shell 8.
The utility model compared with prior art, has the following advantages:
(1) the utility model is suitable for the heating furnace with outer stiffening ring, effective anti-fire-stopping pipe fouling, bulge, the trouble free service cycle of prolongation heating furnace.
(2) the utility model, by the forward and backward mounting guiding board of stiffening ring, effectively washes away region, stiffening ring front and back, avoids Impurity deposition and fouling.
(3) length of the forward and backward deflector of the utility model stiffening ring and setting angle, according to mobility status calculative determination, can guarantee that stiffening ring front and back are without washing away dead band.
(4) the utility model is arranged on oil field heating furnace fire tube surface, detachable after installing, can periodic cleaning, maintenance, guarantee the long-term safety work of oil field heating furnace.
(5) the utility model adopts different waterworks according to oil field heating furnace real work situation, guarantees, to effectively the washing away of oil field heating furnace fire tube, to avoid subcooled boiling assurance device work reliable and stable.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation that prevents the fouling of oil field heating furnace fire tube of the utility model;
Fig. 2 is a kind of oil field heating furnace fire tube fouling device inlet side partial sectional view that prevents of the utility model;
Fig. 3 is a kind of structure fire tube stiffening ring place cutaway view that prevents the fouling of oil field heating furnace fire tube of the utility model;
Fig. 4 is a kind of structural entity schematic diagram that prevents the fouling of oil field heating furnace fire tube of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1,1 is oil field heating furnace, and 4 is oil field heating furnace fire tube, and its surface uniform is distributed with fire tube stiffening ring 10, plays and stablizes fire tube structure effect.Semi-cylindrical fire tube shell 8 is coated on oil field heating furnace fire tube 4 the first half, at fire tube stiffening ring 10 places, semi-cylindrical fire tube shell 8 forms semicircle annular protrusion 11, form the continuous chuck space (hereinafter to be referred as chuck space) of semicircle annular along oil field heating furnace fire tube 4 circumferential and axial with oil field heating furnace fire tube 4 upper surfaces, guarantee that the mixed liquor (hereinafter to be referred as washing away liquid) washing away can wash away to opposite side smoothly from fire tube shell one side.
Due to oil field heating furnace import, to mix liquid measure less, directly introduce semicircle annular header and can not form effectively and wash away, though or can form and wash away, flow velocity is not more than the minimum flow velocity of generation subcooled boiling.Therefore, need to adopt waterworks in conjunction with the real work situation of oil field heating furnace, for washing away of chuck provides enough mixed liquor flows, to form effectively, wash away (effectively washing away in chuck space, refer to that mixed liquor flow velocity must be greater than the minimum flow velocity that subcooled boiling does not occur on heating furnace surface), guarantee, in chuck, subcooled boiling does not occur.
Jet pump is a kind of pump that utilizes high-pressure fluid jet-action to carry fluid, and during work, high-pressure fluid with ejection at a high speed, produces negative pressure through nozzle in mixing chamber, and low-pressure fluid is sucked, and enters enlarged tube after mixing, improves pressure and discharges.
For guarantee to form and effectively wash away in chuck space, must provide the sufficient flow quantity that washes away.Consider the real work situation of oil field heating furnace, can adopt the different liquid schemes of washing away.
The import mixed liquor of oil field heating furnace 1 enters oil field heating furnace 1 through imported valve 9, when this import flow quantity is large and keep consecutive hours, this import liquid can be caused to jet pump 7, jet pump 7 is by the interior mixed liquor submergence of oil field heating furnace 1, import liquid sprays through jet pump 7, and in part stove, low pressure liquid is inhaled into jet pump 7, after mixing, introduces semicircle annular header 3, through nozzle 5, spray into chuck space, wash away.
When import liquid measure is still not enough while forming enough flows after jet pump sprays, need to adopt water pump 6 to be placed in outside oil field heating furnace 1, extract the mixed liquor in oil field heating furnace 1, enter by the road the interior semicircle annular header 3 of oil field heating furnace 1.
As shown in Figure 2, wash away liquid and enter semicircle annular header 3 through suction flange 12, through nozzle 5, form jet again and enter chuck space, semicircle annular header 3 and nozzle 5 are welded on fire tube surface and form integral structure, and are connected with semi-cylindrical fire tube shell 8 with bolt 13.
As shown in Figure 3, when mixed liquor is flowed through fire tube stiffening ring 10 position, front flow guiding plate 15 and rear deflector 16 can guide fluid scouring fire tube stiffening ring 10 and the square region 14 that fire tube upper surface forms, and avoid dirt to separate out in this deposition.
In mixed liquor inlet side and fire tube both sides, semi-cylindrical fire tube shell 8 is fixing by bolt 13 with the band steel that is welded on oil field heating furnace fire tube 4 surfaces, and is sealed, and when the cleaning of chuck space requirement and maintenance, can conveniently semi-cylindrical fire tube shell 8 be pulled down.
As shown in Figure 4, for the utility model is a kind of, prevent the structural entity schematic diagram of oil field heating furnace fire tube fouling, from figure, can clearerly find out structure of the present utility model.
Mixed liquor is along the high-temperature flue gas flow direction whole chuck space of flowing through from front to back, and fire tube upper surface is washed away in uniform distribution, strengthens fire tube surface heat exchanging on the one hand, takes away heat, reduces fire tube wall temperature, reduces impurity in mixed liquor and separates out at the high temperature on fire tube surface; Working fluid flow speed is washed away fire tube faster simultaneously, plays scale removal effect.Thereby fouling and the scaling loss on fire tube surface have been avoided.
Claims (5)
1. a structure that prevents the fouling of oil field heating furnace fire tube, it is characterized in that: comprise the semi-cylindrical fire tube shell (8) that is coated on oil field heating furnace fire tube (4) the first half, described semi-cylindrical fire tube shell (8) forms the continuous chuck of the semicircle annular space along oil field heating furnace fire tube (4) circumferential and axial with oil field heating furnace fire tube (4) upper surface, inlet side in the continuous chuck of semicircle annular space arranges semicircle annular header (3), and along a plurality of nozzles of semicircle annular header (3) circumferential arrangement (5), spraying in semi-cylindrical fire tube shell (8) of nozzle (5), described semicircle annular header (3) with come liquid pipeline to be connected, the fire tube stiffening ring (10) that is positioned at oil field heating furnace fire tube (4) at described semi-cylindrical fire tube shell (8) locates to form semicircle annular protrusion (11), and at semicircle annular protrusion (11) two ends to semi-cylindrical fire tube shell (8) inner side, the front and back of fire tube stiffening ring (10) arrange respectively front flow guiding plate (15) and rear deflector (16).
2. a kind of structure that prevents the fouling of oil field heating furnace fire tube according to claim 1, it is characterized in that: described semi-cylindrical fire tube shell (8) is fixing by bolt (13) with the band steel that is welded on oil field heating furnace fire tube (4) surface at mixed liquor inlet side and oil field heating furnace fire tube (4) both sides, and is sealed.
3. a kind of structure that prevents the fouling of oil field heating furnace fire tube according to claim 1, it is characterized in that: adopt two kinds of modes that hydraulic oil water mixed liquid is provided, a kind of is that water pump (6) is placed in outside oil field heating furnace (1), extract the interior low pressure mixed liquor of oil field heating furnace (1), after water pump (6) pressurization, form hydraulic oil water mixed liquid and enter semicircle annular header (3); Another kind is that jet pump (7) is placed in oil field heating furnace (1) inside, be immersed in the mixed liquor in oil field heating furnace (1), the hydraulic oil water mixed liquid that enters oil field heating furnace (1) from imported valve (9) enters jet pump (7), draw after the low pressure liquid mixing in oil field heating furnace (1), enter semicircle annular header (3).
4. a kind of structure that prevents the fouling of oil field heating furnace fire tube according to claim 1, is characterized in that: described front flow guiding plate (15) and rear deflector (16), according to mobility status before and after stiffening ring (10), are got different length c and setting angle α.
5. a kind of structure that prevents the fouling of oil field heating furnace fire tube according to claim 1, is characterized in that: described front flow guiding plate (15) and rear deflector (16) are welded in semi-cylindrical fire tube shell (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420181537.8U CN204006685U (en) | 2014-04-15 | 2014-04-15 | A kind of structure that prevents the fouling of oil field heating furnace fire tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420181537.8U CN204006685U (en) | 2014-04-15 | 2014-04-15 | A kind of structure that prevents the fouling of oil field heating furnace fire tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204006685U true CN204006685U (en) | 2014-12-10 |
Family
ID=52046678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420181537.8U Withdrawn - After Issue CN204006685U (en) | 2014-04-15 | 2014-04-15 | A kind of structure that prevents the fouling of oil field heating furnace fire tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204006685U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925700A (en) * | 2014-04-15 | 2014-07-16 | 西安交通大学 | Oil-field heating furnace fire tube scaling prevention device |
-
2014
- 2014-04-15 CN CN201420181537.8U patent/CN204006685U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925700A (en) * | 2014-04-15 | 2014-07-16 | 西安交通大学 | Oil-field heating furnace fire tube scaling prevention device |
| CN103925700B (en) * | 2014-04-15 | 2016-06-29 | 西安交通大学 | A kind of device preventing oil field heating furnace fire tube fouling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204716642U (en) | A kind of three grades of large-flow jet pumps | |
| CN201539231U (en) | Heating system preventing wax deposition of oil production well tubes | |
| CN103925700B (en) | A kind of device preventing oil field heating furnace fire tube fouling | |
| CN204006685U (en) | A kind of structure that prevents the fouling of oil field heating furnace fire tube | |
| CN204593415U (en) | The online alkali lye flusher of air preheater | |
| CN201055754Y (en) | Gas-liquid diphasic flow pipe transmission mixer | |
| CN202746940U (en) | Prevention and control tool of natural gas hydrate | |
| CN104475387B (en) | Jet douche device | |
| CN201416415Y (en) | Energy-saving and scale preventing device for oil field heating furnace | |
| CN103433163B (en) | A kind of Double-fluid spray gun for denitration | |
| CN101699024A (en) | Paraffin removal technological method by washing oil wells with hot steam | |
| CN206670445U (en) | Clean the device of dirt in heating furnace tube | |
| CN203683575U (en) | Converter water cooling feed opening with good cooling effect and long service life | |
| CN209876900U (en) | Injection type heat pump temperature reducing device for flash steam | |
| CN205732159U (en) | Fire tube outer wall fountain apparatus for eliminating sludge | |
| CN205118990U (en) | High temperature high pressure steam generator | |
| CN214199189U (en) | Novel water-fire direct heat exchange type boiler with heat exchange channel | |
| CN202757136U (en) | Boiler water soot blower gun barrel structure | |
| CN203214010U (en) | Oil field four-in-one fire tube online jet scale cleaning and preventing device | |
| CN104296137B (en) | A kind of burner | |
| CN203459196U (en) | Denitration two-fluid spray gun | |
| CN202993201U (en) | Novel combustor for roaster | |
| CN205014400U (en) | Waste heat collection device for boiler | |
| CN114160515B (en) | Device and method for cleaning coal gas transverse discharge pipe of coke oven basement | |
| CN102755974A (en) | Chemical cleaning and heating device and heating method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141210 Effective date of abandoning: 20160629 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |