CN217503619U - Vehicle-mounted horizontal high-dryness steam injection boiler - Google Patents

Abstract

The utility model relates to a technical field of boiler structure, heat transfer, automatic control, a on-vehicle horizontal high-dryness fraction steam injection boiler, including laying steam injection boiler body, horizontal convection heat transfer section, overheated heat transfer section, feedwater preheating module, combustor module, gas pipeline module, spherical separator module, circuit module and the plunger pump module on the trailer, link to each other through the steam pipeline between the above-mentioned module, horizontal convection heat transfer section includes box, fluorescent lamp and finned tube, the technical advantage of the utility model is that: the spherical separator module is integrated on a trailer, so that the dryness of the steam of the injection well generated by the vehicle-mounted high-dryness steam injection boiler is improved to 100 percent from about 80 percent originally, and the quality of the steam of the injection well is improved; the finned tubes are in various styles, so that the heat exchange efficiency of high-temperature flue gas and high-pressure water can be improved; the whole prying seat is arranged on the trailer body, so that the mobility is strong, the repeated utilization rate is high, and the installation and the debugging are convenient.

Description

Vehicle-mounted horizontal high-dryness steam injection boiler

Technical Field

The patent of the utility model relates to a technical field of boiler structure, heat transfer, automatic control, in particular to on-vehicle horizontal high-dryness fraction steam injection boiler.

Background

The steam injection boiler is the core equipment for the recovery of thick oil in an oil field, and the generated steam with high temperature and high pressure and steam injection dryness of 80 percent is injected into the oil well to transfer heat to an oil layer and reduce the viscosity of crude oil in the oil layer, thereby improving the recovery ratio of the thick oil. According to the loading mode, the steam injection boiler can be divided into a fixed type and a vehicle-mounted type. The vehicle-mounted steam injection boiler is convenient to use, can stop at a well mouth for steam injection, reduces the length of a steam injection pipeline, reduces the heat loss in the steam conveying process, and ensures the well injection energy. Simultaneously, the vehicle-mounted steam injection boiler reduces the workload of oil field ground construction. The method is widely applied to thermal oil recovery processes such as steam huff and puff, steam flooding and the like.

The steam injection dryness is an important factor for measuring the operation quality of the steam injection boiler. The quality of the thick oil exploitation is directly influenced by the dryness of the injected steam. The dryness of steam injection that present vehicular steam injection boiler can reach is 75% to 85%, does not have breakthrough development.

SUMMERY OF THE UTILITY MODEL

The utility model provides a vehicle-mounted horizontal high-dryness steam injection boiler, the concrete implementation mode is as follows:

the utility model provides a on-vehicle horizontal high-dryness fraction steam injection boiler, including steam injection boiler body, horizontal convection heat transfer section, overheated heat transfer section, the module is preheated in the feedwater, the combustor module, gas pipeline module, spherical separator module, circuit module and plunger pump module, and the equipartition is located on the trailer, link to each other through the steam pipeline between the above-mentioned module, horizontal convection heat transfer section includes the box, fluorescent tube and finned tube, four fluorescent tubes lay the below of box, its top is provided with a plurality of finned tubes, the top position department level of box is provided with air inlet and gas outlet in opposition.

Furthermore, the light pipes are connected end to end through a first bent pipe to form a single-loop structure, the finned pipes are connected end to end through a third bent pipe to form a single-loop structure, and the light pipe at the last position and the finned pipe at the first position are connected through a second bent pipe to form a single-return pipe bundle.

The steam injection boiler body is of a horizontal cylindrical structure, a water supply preheating module is arranged at the top of the steam injection boiler body, an overheating heat exchange section of a horizontal trapezoidal structure is arranged above the tail of the steam injection boiler body, the front of the steam injection boiler body is connected to a burner module, a spherical separator module is arranged at the tail of a trailer, a circuit module is arranged in the left space of the trailer, a gas pipeline module is arranged in the right space of the trailer, and a plunger pump module is arranged at the gooseneck part of the trailer.

The heat exchange tube bundle of the steam injection boiler body is formed by annularly arranging a plurality of furnace tubes at equal intervals, the furnace tubes are fixed on the inner wall of the barrel body through high-temperature tube clamps, and two adjacent furnace tubes are connected end to end through an elbow to form a single-return snake-shaped tube bundle.

Furthermore, the inside of the finned tube is axially arranged to be of a corrugated structure, and a plurality of inclined fins can be axially sleeved outside the finned tube.

Furthermore, the finned tube is axially arranged in a corrugated structure, a plurality of conical fins can be axially sleeved outside the finned tube, and the side with the large caliber faces the air inlet side of the box body.

Further, the finned tube may be provided with a corrugated structure in the inner axial direction and may be provided with continuous threaded fins in the outer axial direction.

Furthermore, the light pipe comprises a partition plate, limiting rings and grooves, the limiting rings are arranged on the inner side and the outer side of the joint of the two ends of the light pipe and the box body, the partition plate is axially arranged on the inner side of the light pipe, and the grooves are axially formed in the peripheral surface of the end part of the light pipe.

The finned tube is arranged in double layers, the end parts of the upper layer and the lower layer are connected through a fourth bent tube, the finned tube and the light pipe are respectively provided with a clamping sleeve at the connecting parts of the first bent tube, the second bent tube, the third bent tube and the fourth bent tube, the clamping sleeve is integrally in an annular structure by taking the connection of the light pipe and the first bent tube as an example, one end of the clamping sleeve is fixedly provided with a sliding ring radially and inwards, the other end of the clamping sleeve is axially provided with an internal thread, the end parts of both ends of the first bent tube are axially provided with external threads, and the end surface is provided with a sealing ring,

furthermore, the sliding ring is axially connected with the groove in a sliding mode, the internal thread of the clamping sleeve is connected with the external thread of the first bent pipe in a threaded mode, and the end face of one side of the internal thread in the clamping sleeve is in extrusion fit with the end face of the first bent pipe through the sealing ring.

Furthermore, the water supply preheating module is a sleeve type preheater, the circuit module is composed of a power distribution cabinet, a PLC control cabinet and a frequency conversion cabinet, the combustor module is composed of a combustor, an electromagnetic valve and a cut-off valve, and the gas pipeline module is composed of a flowmeter, a pressure switch, a pressure gauge, a pressure transmitter and a valve.

The utility model has the beneficial technical effects that:

1. the utility model integrates the spherical separator module on the trailer, so that the steam dryness of the injection well generated by the vehicle-mounted high-dryness steam injection boiler is improved to 100 percent from about 80 percent of the original dryness, thereby improving the quality of the steam of the injection well;

2. the finned tube in the utility model has various styles, which can improve the heat exchange efficiency of high temperature flue gas and high pressure water;

3. the utility model discloses well whole sled seat is installed on the trailer, and the mobility is strong, and reuse rate is high, and the scene only needs to be connected alright in order to come into operation, installation and debugging convenience to advancing, outlet duct through high-pressure clamp and high-pressure compensator.

Drawings

Fig. 1 is a left side view of the main structure of the present invention;

fig. 2 is a top view of fig. 1 of the present invention;

FIG. 3 is a right side view of the main structure of the present invention;

FIG. 4 is a front view of the main structure of the present invention;

FIG. 5 is a schematic structural view of a horizontal convection heat exchange section of the present invention;

FIG. 6 is a first cross-sectional view of the structure of the horizontal convection heat exchange section of the present invention;

FIG. 7 is a second cross-sectional view of the structure of the horizontal convection heat exchange section of the present invention;

FIG. 8 is a schematic structural view of a finned tube according to the present invention;

fig. 9 is a schematic diagram of the exploded structure of fig. 7 in the present invention;

fig. 10 is a cross-sectional view of the cartridge structure of the present invention;

fig. 11 is a schematic structural view of a first elbow pipe according to the present invention;

FIG. 12 is a schematic structural view of a fin tube according to the present invention deformed one;

FIG. 13 is a cross-sectional view of a deformed secondary structure of the intermediate fin tube according to the present invention.

Description of reference numerals:

1. steam injection boiler body, 2 horizontal convection heat exchange section, 3 chimney, 4 feed water preheating module, 5 burner module, 6 gas pipeline module, 7 operation room, 8 ladder platform, 9 trailer, 10 steam-water separator, 11 steam-water pipeline, 12 sewage discharge pipeline, 13 overheating heat exchange section, 14 spherical separator module, 15 circuit module, 16 plunger pump module, 17 safety valve,

21. a box body 22, a finned tube 23, a light pipe 24, a first elbow pipe 25, a second elbow pipe 26, a third elbow pipe 27, a fourth elbow pipe 28 and a clamping sleeve,

221. corrugation 222, tapered fins 223, threaded fins 224, angled fins,

231. a partition plate 232, a limit ring 233 and a groove,

241. the external thread, 242, the sealing ring,

281. slip ring, 282, internal thread.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings and examples:

it should be noted that the structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, and any modification of the structure, change of the ratio relationship or adjustment of the size should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the efficacy that the present invention can produce and the purpose that the present invention can achieve.

Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

With reference to fig. 1 to 4, it is right to explain the utility model relates to a vehicle-mounted horizontal high-dryness steam-injection boiler: including steam injection boiler body 1, horizontal convection current heat transfer section 2, overheated heat transfer section 13, feedwater preheating module 4, combustor module 5, gas pipeline module 6, spherical separator module 14, circuit module 15 and plunger pump module 16, and the equipartition is located on trailer 9, and the relief valve 17 is installed at the top of spherical separator module 14 in this structure, and spherical separator module 14 is to outer connecting with sewage pipes 12.

The feed water preheating module 4 is arranged at the top end of the steam injection boiler body 1, the overheating heat exchange section 13 is arranged above the tail part of the steam injection boiler body 1, the horizontal convection heat exchange section 2 is arranged above the overheating heat exchange section 13, the spherical separator module 14 is arranged at the tail part of the trailer 9, the modules are connected through a water vapor pipeline 11, the circuit module 15 is arranged in the left space of the trailer 9, the burner module 5 is connected with the front part of the steam injection boiler body 1, an opening part above the rear part is arranged as a smoke circulation area, the gas pipeline module 6 is arranged in the right space of the trailer 9, the plunger pump module 16 is arranged at the gooseneck part of the trailer 9, in the structure, the burner module 5 and the plunger pump module 16 are provided with an independent operation room 7, the air outlet end of the horizontal convection heat exchange section 2 is upwards connected with a chimney 3, and the ladder platform 8 is arranged on the side surface of the trailer 9 corresponding to the spherical separator module 14, for the operator to observe.

The steam injection boiler body 1 is of a horizontal cylindrical structure, the heat exchange tube bundles are formed by annularly arranging a plurality of furnace tubes at equal intervals, the furnace tubes are fixed on the inner wall of the cylinder body through high-temperature tube clamps, two adjacent furnace tubes are connected end to end through elbows to form a single-return snake-shaped tube bundle, the overheating heat exchange section 13 is of a horizontal trapezoidal box structure, all the tube bundles adopt light tubes, and the adjacent light tubes are connected through elbows to form the single-return tube bundle.

The water supply preheating module 4 is a sleeve type preheater, the circuit module 15 is composed of a power distribution cabinet, a PLC control cabinet and a frequency conversion cabinet, the combustor module 5 is composed of a combustor, an electromagnetic valve and a cut-off valve, and the gas pipeline module 6 is composed of a flowmeter, a pressure switch, a pressure gauge, a pressure transmitter and a valve.

In embodiment 1, with reference to fig. 5, 6, and 13, a horizontal type high-dryness steam injection boiler for vehicle-mounted use includes a box 21, four light pipes 23, and a plurality of finned pipes 22, where the light pipes 23 are disposed below the box 21, the finned pipes 22 are disposed above the light pipes 23, the box 21 is horizontally provided with air inlets and air outlets, and with reference to fig. 8, the light pipes 23 are connected with the finned pipes 22 at first to form a single-pass pipe bundle, the finned pipes 22 in the present structure are provided with corrugations 221, and the outer sides of the finned pipes are axially sleeved with a plurality of inclined fins 224, and the inclined fins 224 can block and slow down smoke.

Referring to fig. 6 and 7, the light pipe 23 includes a dividing plate 231, a limiting ring 232 and a groove 233, the limiting ring 232 is disposed on both inner and outer sides of a joint between two ends of the light pipe and the box 21, the dividing plate 231 is axially disposed on the inner side of the light pipe 23, the groove 233 is axially disposed on the end of the light pipe, and the dividing plate 231 in the structure can improve the uniformity of water circulation.

Referring to fig. 5 and 6, the light pipes 23 are connected end to end by a first bent pipe 24 to form a single-loop structure, the finned tubes 22 are connected end to end by a third bent pipe 26 to form a double-layer single-loop structure, the upper and lower layers are connected by a fourth bent pipe 27, the light pipe 23 at the last position is connected with the finned tube 22 at the first position by a second bent pipe 25, and the joints are provided with clamp sleeves 28.

Referring to fig. 10 and 11, taking the connection between the light pipe 23 and the first bent pipe 24 as an example, the ferrule 28 is in an annular structure, one end of the ferrule is fixedly provided with a sliding ring 281, the other end of the ferrule is provided with an internal thread 282, both ends of the first bent pipe 24 are provided with external threads 241, and an end surface is provided with a sealing ring 242, referring to fig. 9, in the structure, the sliding ring 281 is axially and slidably connected with the groove 233, the ferrule 28 is screwed to the external threads 241 of the first bent pipe 24 through the internal thread 282, and the end surface where the ferrule 28 is connected with the first bent pipe 24 is in interference fit through the sealing ring 242, so that a good sealing effect can be achieved.

Embodiment 2, combine fig. 8, a vehicle-mounted horizontal high-dryness fraction steam injection boiler, horizontal convection heat transfer section 2 includes box 21, four fluorescent tubes 23 and several finned tubes 22, the outside axial cover of finned tube 22 is equipped with a plurality of tapered fin 222 in this structure, and the one side that the diameter is big is towards the air inlet side of box 21, be equipped with the sound wave soot blower in horizontal convection heat transfer section 2, flue gas temperature detects the mouth, oxygen content detects mouth and flue gas component analysis and detects the mouth, tapered fin 222 can play the effect of better gathering flue gas, in order to improve heat transfer effect.

Embodiment 3, referring to fig. 12, a horizontal convection heat exchange section of a vehicle-mounted horizontal high-dryness steam injection boiler further includes a box 21, four light pipes 23, and a plurality of finned tubes 22, wherein threaded fins 223 are disposed on the outer sides of the finned tubes 22 in the present structure.

Embodiment 4, this embodiment provides a method for using a special steam dryness meter truck for a mobile steam injection boiler, and the steam system firstly shows that qualified softened water with a pressure of about 0.5MPa is supplied to the plunger pump module 16 and pressurized; high-pressure water enters the water supply preheating module 4 through the water vapor pipeline 11, and the high-pressure water in the outer pipe of the water supply preheating module 4 exchanges heat with the flue gas in the flue pipe, so that the temperature of the high-pressure water is raised to 80-120 ℃; then the high-pressure water is heated and heated to be close to or reach a saturated state through the horizontal convection heat exchange section 2, the inner pipe of the feed water preheating module 4, the boiler body 1, the spherical separator 14 and the overheating heat exchange section 13 in sequence, and is vaporized into saturated steam with the dryness of 100%.

The flue gas system behaves as: the boiler body 1 is used as a combustion chamber, and the heat of high thermal load is released and transferred to water in a furnace pipe through radiation; wherein, the high-temperature flue gas at the tail part of the flame turns upwards to 90 degrees, washes the horizontally arranged light pipe bundle, the heat of the flue gas enters the horizontal convection heat exchange section 2 after passing through the overheating heat exchange section 13, reversely washes the horizontally and transversely arranged finned tubes 22 for full heat exchange, and finally is discharged into the atmosphere through the chimney 3; the control system adopts an embedded intelligent control system, mainly comprises a PLC controller, an HMI touch screen, a combustion controller and an electric accessory, and monitors and controls related modules in real time in the operation process.

Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, and that the scope of the invention is defined by the appended claims.

Claims (10)

1. A vehicle-mounted horizontal high-dryness steam injection boiler comprises a steam injection boiler body (1) arranged on a trailer (9), a horizontal convection heat exchange section (2), an overheating heat exchange section (13), a water supply preheating module (4), a burner module (5), a gas pipeline module (6), a spherical separator module (14), a circuit module (15) and a plunger pump module (16), and the modules are connected through a water vapor pipeline (11), and is characterized in that,

the horizontal convection heat exchange section (2) comprises a box body (21), light pipes (23) and finned tubes (22), wherein the four light pipes (23) are arranged below the box body (21), the finned tubes (22) are arranged above the light pipes, an air inlet and an air outlet are horizontally and oppositely arranged at the upper position of the box body (21),

the light pipes (23) are connected end to end through first bent pipes (24) to form a single-loop structure, the finned pipes (22) are connected end to end through third bent pipes (26) to form a single-loop structure, and the light pipes (23) at the last position and the finned pipes (22) at the first position are connected through second bent pipes (25) to form a single-return pipe bundle.

2. The vehicle-mounted horizontal high-dryness steam injection boiler according to claim 1, wherein the steam injection boiler body (1) is of a horizontal cylindrical structure, a feed water preheating module (4) is arranged at the top of the steam injection boiler body (1), an overheating heat exchange section (13) of a horizontal trapezoidal structure is arranged above the tail part of the steam injection boiler body (1), the front part of the steam injection boiler body (1) is connected with a burner module (5),

the tail of the trailer (9) is provided with a spherical separator module (14), the left space of the trailer (9) is provided with a circuit module (15), the right space of the trailer (9) is provided with a gas pipeline module (6), and the gooseneck part of the trailer (9) is provided with a plunger pump module (16).

3. The vehicle-mounted horizontal high-dryness steam injection boiler according to claim 2, characterized in that the heat exchange tube bundle of the steam injection boiler body (1) is formed by arranging a plurality of furnace tubes in an equidistant annular shape, the furnace tubes are fixed on the inner wall of the barrel body by high-temperature tube clamps, and two adjacent furnace tubes are connected end to end through elbows to form a single-return snake-shaped tube bundle.

4. A horizontal high-quality steam-injection boiler carried on board a vehicle according to claim 3, wherein the finned tube (22) is axially provided with a corrugated (221) structure inside, and is axially sleeved with a plurality of inclined fins (224) outside.

5. A vehicle-mounted horizontal high-dryness steam injection boiler according to claim 3, characterized in that the finned tube (22) is axially provided with a corrugated structure (221) inside, a plurality of tapered fins (222) are axially sleeved outside, and the side with the larger caliber faces the air inlet side of the box body (21).

6. A horizontal high-quality steam injection boiler carried on board a vehicle according to claim 3, characterized in that the finned tube (22) is axially internally provided with a corrugated (221) structure and externally provided axially with continuous threaded fins (223).

7. The vehicle-mounted horizontal high-dryness steam injection boiler according to claim 3, wherein the light pipe (23) comprises a dividing plate (231), a limiting ring (232) and a groove (233), the limiting ring (232) is arranged on both the inner side and the outer side of the joint of the two ends of the light pipe (23) and the box body (21), the dividing plate (231) is axially arranged on the inner side of the light pipe (23), and the groove (233) is axially formed on the peripheral surface of the end part of the light pipe.

8. The vehicle-mounted horizontal high-dryness steam injection boiler according to claim 7, characterized in that the finned tube (22) is double-layered, the ends of the upper layer and the lower layer are connected through a fourth elbow (27), and the connecting parts of the finned tube (22) and the light pipe (23) with the first elbow (24), the second elbow (25), the third elbow (26) and the fourth elbow (27) are provided with clamping sleeves (28).

9. The vehicle-mounted horizontal high-dryness steam injection boiler according to claim 8, wherein, taking the connection between the light pipe (23) and the first elbow (24) as an example, the clamping sleeve (28) is of an annular structure as a whole, one end of the clamping sleeve is fixedly provided with a sliding ring (281) radially and inwardly, the other end of the clamping sleeve is axially provided with an internal thread (282), the two end parts of the first elbow (24) are axially provided with external threads (241), and the end surfaces are provided with sealing rings (242),

the sliding ring (281) is axially and slidably connected with the groove (233), the internal thread (282) of the clamping sleeve (28) is in threaded connection with the external thread (241) of the first bent pipe (24), and the end face of one side of the internal thread (282) in the clamping sleeve (28) is in extrusion fit with the end face of the first bent pipe (24) through the sealing ring (242).

10. The vehicle-mounted horizontal high-dryness steam injection boiler according to claim 1, wherein the feed water preheating module (4) is a sleeve type preheater, the circuit module (15) is composed of a power distribution cabinet, a PLC control cabinet and a frequency conversion cabinet, the burner module (5) is composed of a burner, an electromagnetic valve and a cut-off valve, and the gas pipeline module (6) is composed of a flowmeter, a pressure switch, a pressure gauge, a pressure transmitter and a valve.

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