CN218064828U - Modular steam injection workstation - Google Patents

Abstract

The utility model relates to an oil field steam injection technology technical field specifically is a modular steam injection workstation, collect the subassembly including the flue gas, the flue gas collects the subassembly and communicates in many radiation sections, locates the top that the flue gas collected the subassembly side by side with the convection section of radiation section equal quantity, switches on in proper order in the top of convection section and is equipped with flue gas condensation subassembly and chimney, and the combustor is installed to the front end of radiation section, the technical advantage of the utility model is that: the transportation can be carried out by dividing the transportation into modules, so that the transportation efficiency is improved; the boiler can be manufactured in a modularized way during production in a factory, and assembled after being transported to the site in a modularized way, so that the installation period of the boiler is greatly shortened, and the transportation cost can be saved; a collecting block and a honeycomb-shaped flow equalizing plate are sequentially arranged in the collecting box, so that the multi-path flue gas is mixed for many times and then is uniformly led out; the addition of the non-return block can effectively prevent partial flue gas from being introduced into the radiation section to be operated when the operated radiation section generates the flue gas.

Description

Modular steam injection workstation

Technical Field

The utility model relates to an oil field steam injection technology technical field specifically is a modular steam injection workstation.

Background

The steam injection boiler is the core equipment for the recovery of thick oil in an oil field, generates steam with high temperature and high pressure and steam injection dryness higher than 80%, and transfers heat to an oil layer after the steam is injected into the oil well so as to reduce the viscosity of crude oil in the oil layer and improve the recovery ratio of the thick oil. According to the loading mode, the steam injection boiler can be divided into a fixed type boiler and a vehicle-mounted type boiler, and is widely applied to thermal oil extraction processes such as steam huff and puff, steam flooding and the like.

At present, a circulating fluidized bed boiler is adopted in a steam injection mode with the steam injection amount of 100T/h, but the circulating fluidized bed boiler has high construction cost, high site requirement, large occupied area, difficult field installation and incapability of carrying; if adopt the modularized design, the mixed effect after the leading-in of multichannel flue gas is not good, and then leads to preheating inequality to water, has influenced the stability of follow-up production steam.

SUMMERY OF THE UTILITY MODEL

The utility model provides an above-mentioned problem to prior art exists provides a vapour workstation is annotated to modular, satisfying the transportation size, satisfying under the condition of boiler load, annotate vapour boiler with circulating fluidized bed and design into modular equipment form for the field installation becomes convenient and swift, and detailed implementation is as follows:

the utility model provides a modular steam injection workstation, including the radiation section, the subassembly is collected to the flue gas, the convection section, flue gas condensation subassembly, the chimney, combustor and control system, the flue gas is collected the subassembly and is communicated in many radiation sections, locate the top that the subassembly was collected to the flue gas side by side with the convection section of radiation section equal quantity, the top of convection section switches on in proper order and is equipped with flue gas condensation subassembly and chimney, the combustor is installed to the front end of radiation section, the convection section is the module, its water inlet connects in the plunger pump, its steam outlet meets with the steam inlet of radiation section, the steam outlet and the steam outlet manifold of radiation section are connected, the inboard cigarette end that advances of radiation section meets with the combustor, its cigarette end that goes out is in flue gas collection subassembly.

Furthermore, the radiation section, the flue gas collection assembly, the convection section, the flue gas condensation assembly, the chimney, the combustor and the control system are assembled into a whole and are arranged on the prying seat.

Furthermore, the inside of the radiation section is a single pipeline, the single pipeline is arranged in a circular fire tube structure in a reciprocating mode through coiled pipes, the convection section is of a horizontal square box body structure, the convection heat exchange module tube bundle is composed of four rows of light pipes and a plurality of rows of finned tubes, the four rows of light pipes and the finned tubes are connected into a single-return tube bundle through elbows, the light pipes are arranged at the head of the convection section, and the rest tube bundles are all of finned tube structures.

Further, the tube bank of convection current section and radiation section is series structure, and the tube bank is by flange joint, and both all are provided with the leakage fluid dram with the tube bank of flue gas condensation subassembly bottommost, and the leakage fluid dram collects to total blowdown pipeline through the valve.

The flue gas collects the subassembly including collecting the case and ending the contrary piece, collect incasement portion and vertically cut apart into first cavity through first punching press board and the second punching press board from the bottom up that the level set up, the second cavity, the third cavity, and the outlet flue has been seted up at third cavity top, a plurality of smoke inlet pipes are installed to first cavity side direction, first punching press board is the same with second punching press plate structure, use first punching press board as an example, it sets up many vertical necking down passageways that switch on, the top of necking down passageway is established to the mouth that expands, establish to the mouth that contracts in the bottom.

Furthermore, the smoke collecting assembly further comprises a honeycomb-shaped flow equalizing plate and a collecting block, the collecting block is horizontally arranged on the inner side of the second cavity, and the vertically communicated honeycomb-shaped flow equalizing plate is horizontally arranged on the inner side of the third cavity.

The collecting block comprises an upper partition plate and a lower partition plate, a first collecting cylinder, a second collecting cylinder and a third collecting cylinder are vertically clamped between the upper partition plate and the lower partition plate, the first collecting cylinder and the third collecting cylinder are conducted downwards, and the second collecting cylinder is conducted upwards.

Further, the first cylinder that converges is the same with the structure of third cylinder that converges, use first cylinder that converges as an example, the first smoke mouth of leading of a plurality of radial switches on is seted up to its side circumference equidistance, the outside level of outer tip of each first smoke mouth of leading has the side direction guide plate, and the radian orientation of side direction guide plate is opposite in first cylinder and the third cylinder that converges, the second smoke mouth that radially switches on of a plurality of is seted up along circumference equidistance in the lower part of second cylinder that converges, a plurality of vertical guide plate has been seted up along circumference equidistance in its upper portion inboard, and vertical guide plate is the arc structure of inclined plane form for the inboard, the bore at vertical guide plate top is greater than the bore of bottom.

It has set firmly circular riser to advance the tobacco pipe inboard, circular trompil has been seted up to circular riser center department axial, and the assembly through-hole that a plurality of axial switched on is seted up to its periphery equidistance, and the outer tip of assembly through-hole has increased the spacing groove, and it includes the baffle to end contrary piece, and its unilateral has set firmly the connecting rod with the equal quantity of assembly through-hole along global equidistance axial, and the fixed cover in the connecting rod outside is equipped with the spacing ring, and the connecting rod horizontal slip connects in the assembly through-hole, and the outside of spacing groove is located to the spacing ring.

The utility model has the beneficial technical effects that:

1. the utility model has simple, compact and reasonable structure, can be divided into modules for transportation, improves the transportation efficiency, is convenient and quick for transportation, has abundant arrangement of heating surfaces of the steam injection workstation consisting of the modularized steam injection boiler, has compact structure and sufficient output of the boiler;

2. the utility model can be manufactured in a modularized way during the production in a factory, so that the manufacturing becomes fast and efficient, the assembly is carried out after the modularized transportation to the site, the site installation of the boiler becomes simple, the period of the boiler installation is greatly shortened, the transportation cost can be saved, and the installation quality of the boiler is ensured;

3. the utility model arranges the collecting block and the honeycomb flow equalizing plate in the collecting box in sequence, so that the multi-path flue gas is mixed for a plurality of times and then is uniformly led out;

4. the utility model discloses add and end contrary piece, can prevent effectively that the radiation section of operation when producing the flue gas, have the leading-in radiation section of treating the operation of partial flue gas in.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the structure inside the middle radiation section of the present invention;

FIG. 3 is a cross-sectional view of the flue gas collection assembly of the present invention;

FIG. 4 is an exploded view of the flue gas collection assembly of the present invention;

FIG. 5 is an enlarged view of the structure of part A of FIG. 4;

FIG. 6 is a cross-sectional view of a collection block structure according to the present invention;

FIG. 7 is a sectional view of the collection block structure of the present invention;

FIG. 8 is a schematic structural view of a non-return block of the present invention;

FIG. 9 is a sectional view of the structure of the middle header of the present invention;

fig. 10 is an exploded view of the backstop block of fig. 8 in accordance with the present invention.

Description of the reference numerals:

1. a radiation section 2, a convection section 3, a flue gas condensation component 4, a chimney 5, a flue gas collection component 6, a burner 7 and a control system,

51. a collection box 52, a non-return block 53, a honeycomb flow equalizing plate 54 and a collection block,

511. a smoke inlet pipe 512, a smoke outlet 513, a first stamping plate 514, a second stamping plate 515, a first cavity 516, a second cavity 517 and a third cavity,

5111. a circular opening 5112, a circular vertical plate 5113, an assembling through hole 5114, a limit groove,

5131. a necking channel, 5132, a flare, 5133, a necking,

521. a baffle plate 522, a connecting rod 523 and a limit ring,

541. an upper partition plate 542, a lower partition plate 543, a second cylinder 544, a first cylinder 545, a third cylinder,

5441. a first smoke guide opening 5442, a lateral guide plate,

5431. a second smoke guide opening 5432 and a vertical guide plate.

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, proportion, 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 proportion relation 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 function and the achievable purpose of the present invention.

In addition, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are used for clarity of description only, and are not used to limit the scope of the present invention, and the relative relationship between the terms may be changed or adjusted without substantial technical changes.

Embodiment 1, combine fig. 1 and fig. 2, this embodiment discloses a modular steam injection workstation, including radiation section 1, the flue gas collects subassembly 5, convection current section 2, flue gas condensation subassembly 3, chimney 4, combustor 6 and control system 7, above-mentioned module equipment is a whole and installs on sled seat, this structure is equipped with the operation room at the outside cover of combustor 6, the workman carries out combustor 6's use in the operation room, through just making each subassembly into modular structure when producing, the transportation efficiency is improved, the equipment in later stage, the maintenance has been made things convenient for simultaneously.

The flue gas collects subassembly 5 and communicates in many radiation sections 1, locate the top that the flue gas collected subassembly 5 with radiation section 1 equivalent quantity's convection section 2 side by side, the top of convection section 2 switches on in proper order and is equipped with flue gas condensation subassembly 3 and chimney 4, combustor 6 is installed to the front end of radiation section 1, convection section 2 is the module type in this structure, its water inlet connects in the plunger pump, its steam outlet connects with the steam inlet of radiation section 1, the steam outlet and the steam outlet manifold of radiation section 1 are connected, the inboard cigarette end that advances of radiation section 1 meets with combustor 6, its cigarette end that goes out connects in flue gas and collects subassembly 5.

The inside single pipeline that is of radiation section 1, single pipeline use coiled pipe reciprocating arrangement to circular shape fire tube structure, and circular shape fire tube structure can improve the homogeneity of water and flue gas heat transfer in this structure to promote heat exchange efficiency.

The convection section 2 is a horizontal square box structure, the convection heat exchange module tube bundle is composed of four rows of light tubes and a plurality of rows of finned tubes, the four rows of light tubes and the rows of finned tubes are connected into a single-return tube bundle through elbows, the light tubes are arranged at the head part of the convection section 2, the rest tube bundles are all of finned tube structures, the tube bundles are arranged in a staggered way in the structure, smoke transversely scours the tube bundles from bottom to top when passing through the modular convection section 2,

convection current section 2 is the series connection structure with the tube bank of radiation section 1, and the tube bank is by flange joint, and both all are provided with the leakage fluid dram with the tube bank of flue gas condensation subassembly 3 bottom, and the leakage fluid dram collects to total blowdown pipeline through the valve, and the leading-in convection current section 2 of this structure normal water, back leading-in radiation section 1 in, water is heated and forms steam, and in steam got into the steam outlet manifold from the play steam port of radiation section 1, and the remaining water in three bottom passes through the leakage fluid dram periodic discharge.

In the specific implementation process, water is injected into the tube bundles of the convection section 2 and the radiation section 1; the burner 6 is started, high-temperature flue gas enters the radiation section 1, and the flue gas heats the tube bundle in the radiation section 1 to form steam and then is discharged; flue gas passes through radiation section 1 and gets into flue gas and converge subassembly 5, convection current section 2 and flue gas condensation subassembly 3, finally discharges from chimney 4 to the outside, preheats the water in the pencil when passing through convection current section 2, and flue gas condensation subassembly 3 can be to the water in the interception flue gas.

Embodiment 2, combine fig. 3 to 7, the embodiment discloses a modular steam injection workstation, the flue gas collects subassembly 5 and includes collection case 51, collect the inside first punching press board 513 and the second punching press board 514 through the level setting of case 51 from the bottom up vertical division first cavity 515, second cavity 516, third cavity 517 into, and third cavity 517 has seted up out the cigarette mouth 512 at the top, a plurality of fire pipes 511 are installed to first cavity 515 side direction, make multichannel flue gas homogeneous mixing through the multi-chamber structure to promote the homogeneity of flue gas residual temperature.

With reference to fig. 4 and 5, the first stamped plate 513 and the second stamped plate 514 have the same structure, and taking the first stamped plate 513 as an example, the first stamped plate is provided with a plurality of vertically-communicated necking passages 5131, the top of each necking passage 5131 is provided with an expanding opening 5132, and the bottom of each necking passage 5133, and in this structure, the necking passages 5131 can enable flue gas to enter each cavity in a jet shape, and then the flue gas is filled in the cavity to be uniformly mixed.

With reference to fig. 3 and 4, the flue gas collection assembly 5 further includes a honeycomb-shaped flow equalizing plate 53 and a collection block 54, the collection block 54 is horizontally disposed inside the second cavity 516, the vertically-communicated honeycomb-shaped flow equalizing plate 53 is horizontally disposed inside the third cavity 517, in the structure, the collection block 54 is used for uniformly mixing the introduced flue gas, and the honeycomb-shaped flow equalizing plate 53 is used for uniformly guiding the flue gas out.

With reference to fig. 7, the collection block 54 includes an upper partition 541 and a lower partition 542, a first collecting cylinder 544, a second collecting cylinder 543 and a third collecting cylinder 545 are vertically sandwiched between the upper partition 541 and the lower partition 542, the first collecting cylinder 544 and the third collecting cylinder 545 are conducted downward, and the second collecting cylinder 543 is conducted upward.

Referring to fig. 6 and 7, the first collecting cylinder 544 and the third collecting cylinder 545 have the same structure, taking the first collecting cylinder 544 as an example, a plurality of radially-communicated first smoke guide openings 5441 are formed at equal intervals in the circumferential direction of the side surface of the first collecting cylinder 544, the outer end of each first smoke guide opening 5441 is horizontally connected with a lateral flow guide plate 5442 outwards, the radian directions of the lateral flow guide plates 5442 in the first collecting cylinder 544 and the third collecting cylinder 545 are opposite, and the smoke inlet pipes 511 corresponding to the collecting box 51 in the transverse direction in the structure are uniformly mixed by the first collecting cylinder 544 or the third collecting cylinder 545.

With reference to fig. 6 and 7, the lower portion of the second collecting cylinder 543 is provided with a plurality of second smoke outlets 5431 radially connected along the circumferential direction at equal intervals, the inner side of the upper portion of the second collecting cylinder 543 is provided with a plurality of vertical guide plates 5432 along the circumferential direction at equal intervals, each vertical guide plate 5432 is an arc-shaped structure with an inner side in an inclined plane, the caliber of the top of each vertical guide plate 5432 is larger than that of the bottom of each vertical guide plate, and the second collecting cylinder 543 mixes the first collecting cylinder 544 and the third collecting cylinder 545 uniformly and puts the smoke into the smoke to be longitudinally collected.

In the implementation process, the flue gas on the two transverse sides respectively vertically and upwardly enters the first confluence barrel 544 or the third confluence barrel 545, and is circumferentially moved by the first smoke guide opening 5441 in a horizontal rotational flow manner by means of the lateral guide plate 5442, the flue gas on the two longitudinal sides enters the second confluence barrel 543 through the second smoke guide opening 5431 after being intersected, and after being uniformly mixed, the flue gas is uniformly guided to the outer side of the tube bundle in the convection section 2 under the action of the vertical guide plate 5432.

In embodiment 3, with reference to fig. 8 to 10, the present embodiment discloses a modular steam injection workstation, the flue gas collection assembly 5 further includes a check block 52, a circular riser 5112 is fixedly disposed inside the flue gas inlet pipe 511, a circular opening 5111 is axially disposed at the center of the circular riser 5112, a plurality of axially-conducted assembling through holes 5113 are disposed around the circular riser at equal intervals, a limit groove 5114 is further disposed at the outer end of the assembling through hole 5113, and the check block 52 prevents the flue gas from flowing backwards in the structure.

Referring to fig. 8, the non-return block 52 includes a baffle 521, a plurality of connecting rods 522 are fixedly disposed on one side of the baffle 521 along the circumferential surface of the baffle in an equidistant axial direction, the number of the connecting rods 522 is equal to that of the assembling through holes 5113, a limiting ring 523 is fixedly disposed on the outer side of each connecting rod 522, in the structure, each connecting rod 522 is horizontally slidably connected to the assembling through hole 5113, the limiting ring 523 is disposed on the outer side of each limiting groove 5114, the baffle 521 can be designed to be circular or trident-shaped, and the trident-shaped baffle 521 is selected from the drawings in order to better show the smoke flow path.

In the implementation process, when high-pressure flue gas is generated in the radiation section 1, the flue gas pushes the baffle 521 towards the collection tank 51 side; at this time, the limit ring 523 approaches and props against the limit groove 5114, a passage is generated between the circular opening 5111 and the baffle 521, and the flue gas can enter the collection box 51; when no high-pressure flue gas is generated in the radiation section 1, the flue gas in the collection tank 51 pushes the baffle 521, so that the baffle 521 radially approaches and props against the circular opening 5111, the passage is closed, and the flue gas in the collection tank 51 cannot enter the radiation section 1 to be operated.

Many other changes and modifications may 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 (9)

1. The utility model provides a modular notes vapour workstation, includes radiation section (1), flue gas collection subassembly (5), convection current section (2), flue gas condensation subassembly (3), chimney (4), combustor (6) and control system (7), its characterized in that:

the flue gas collection assembly (5) is communicated with the plurality of radiation sections (1), the convection sections (2) with the same number as the radiation sections (1) are arranged at the top of the flue gas collection assembly (5) in parallel, a flue gas condensation assembly (3) and a chimney (4) are sequentially communicated above the convection sections (2), a burner (6) is installed at the front end of the radiation section (1), a pipe bundle is arranged in the flue gas condensation assembly (3),

the convection section (2) is in a module type, the water inlet of the convection section is connected with the plunger pump, the steam outlet of the convection section is connected with the steam inlet of the radiation section (1), the steam outlet of the radiation section (1) is connected with the steam outlet manifold,

the smoke inlet end of the inner side of the radiation section (1) is connected with the burner (6), and the smoke outlet end of the radiation section is connected with the smoke collecting component (5).

2. The modular steam injection station according to claim 1, characterized in that the radiant section (1), the flue gas collection assembly (5), the convection section (2), the flue gas condensation assembly (3), the chimney (4), the burner (6) and the control system (7) are assembled as a whole mounted on the skid.

3. The modular steam injection station according to claim 1, characterized in that inside the radiant section (1) is a single pipeline reciprocally arranged in a serpentine to a circular fire-tube configuration,

the convection section (2) is of a horizontal square box structure, the convection heat exchange module tube bundle is composed of four rows of light tubes and a plurality of rows of finned tubes, the four rows of light tubes and the rows of finned tubes are connected into a single-return tube bundle through elbows, the light tubes are arranged at the head of the convection section (2), and the rest tube bundles are all of finned tube structures.

4. The modular steam injection workstation according to claim 3, characterized in that the tube bundles of the convection section (2) and the radiation section (1) are in a series structure, the tube bundles are connected by flanges, and the tube bundles and the bottommost tube bundle of the flue gas condensation assembly (3) are provided with a liquid discharge port which is converged to a main sewage pipeline through a valve.

5. The modular steam injection station according to claim 4, characterized in that the fume collection assembly (5) comprises a collection box (51) and a non-return block (52),

the interior of the collection box (51) is vertically divided into a first cavity (515), a second cavity (516) and a third cavity (517) from bottom to top by a first stamping plate (513) and a second stamping plate (514) which are horizontally arranged, the top of the third cavity (517) is provided with a smoke outlet (512), the first cavity (515) is laterally provided with a plurality of smoke inlet pipes (511),

the first punching press board (513) and the second punching press board (514) are identical in structure, and take the first punching press board (513) as an example, a plurality of vertical conduction necking channels (5131) are formed in the first punching press board, the top of each necking channel (5131) is provided with a diameter expanding port (5132), and the bottom of each necking channel is provided with a necking port (5133).

6. The modular steam injection station according to claim 5, characterized in that the flue gas collection assembly (5) further comprises a honeycomb flow equalizing plate (53) and a collection block (54), the collection block (54) is horizontally arranged inside the second cavity (516), and the vertically conducting honeycomb flow equalizing plate (53) is horizontally arranged inside the third cavity (517).

7. The modular steam injection workstation as claimed in claim 6, wherein the collection block (54) comprises an upper partition plate (541) and a lower partition plate (542), a first collecting cylinder (544), a second collecting cylinder (543) and a third collecting cylinder (545) are vertically clamped between the upper partition plate (541) and the lower partition plate (542), the first collecting cylinder (544) and the third collecting cylinder (545) are conducted downwards, and the second collecting cylinder (543) is conducted upwards.

8. The modular steam injection workstation according to claim 7, wherein the first collecting cylinder (544) and the third collecting cylinder (545) have the same structure, taking the first collecting cylinder (544) as an example, the side surface of the first collecting cylinder is provided with a plurality of radially-communicated first smoke guide ports (5441) at equal intervals in the circumferential direction, the outer end of each first smoke guide port (5441) is horizontally connected with a lateral flow guide plate (5442) outwards, the radians of the lateral flow guide plates (5442) in the first collecting cylinder (544) and the third collecting cylinder (545) are opposite,

the lower part of second cylinder (543) is seted up second smoke guide mouth (5431) that a plurality of radially switched on along circumference equidistance, and a plurality of vertical guide plate (5432) have been seted up along circumference equidistance to its upper portion inboard, and vertical guide plate (5432) are the arc structure of inclined plane form for the inboard, and the bore at vertical guide plate (5432) top is greater than the bore of bottom.

9. The modular steam injection workstation as claimed in claim 5, wherein a circular riser (5112) is fixedly arranged at the inner side of the smoke inlet pipe (511), a circular opening (5111) is axially formed at the center of the circular riser (5112), a plurality of axially-communicated assembling through holes (5113) are equidistantly formed around the circular riser, a limiting groove (5114) is additionally formed at the outer end of each assembling through hole (5113),

the non-return block (52) comprises a baffle plate (521), connecting rods (522) which are the same as the assembling through holes (5113) in number are fixedly arranged on one side of the non-return block along the circumferential surface in an equidistant axial direction, a limiting ring (523) is fixedly sleeved on the outer side of each connecting rod (522),

connecting rod (522) horizontal sliding connects in assembly through-hole (5113), and the outside of locating spacing groove (5114) is located to spacing ring (523).

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