Heating and separating integrated device

Abstract

The invention belongs to the field of oil field ground process gathering and transportation equipment, and discloses a heating and separating integrated device which is characterized in that an end socket is welded in a horizontal cylinder body and divides the cylinder body into a heating cavity and a separating cavity, a chimney is connected with the heating cavity through a pipeline, and an air cooling dryer is seated on the cylinder body of the heating cavity and the separating cavity through a saddle; the heating coil is supported on the upper portion of the heating cavity through a supporting piece, the fire tube and smoke tube combined structure is supported on the lower portion of the heating cavity through a supporting piece, the combustor is connected to the fire tube and smoke tube combined structure through bolts, and a heat exchanger outlet and a heat exchanger inlet are connected with the separation cavity through pipelines respectively. The oil-gas separation element is hung in the separation cavity through a supporting piece. According to the invention, heating, buffering, separating and air cooling purification are integrated, associated gas is taken as fuel, external liquid of the station is heated, meanwhile, heating of an operation room in the station is realized in winter, a conventional small high-water-content oil-gas mixed transportation transfer station can be replaced, energy conservation, emission reduction, consumption reduction and concentration processes are realized, benefits are improved, and waste is avoided.

Description

Technical Field

[0001] The invention belongs to the field of oilfield surface process gathering and transportation equipment, and relates to a heating and separation integrated device. Background Art

[0002] With the rolling development of oil fields and the gradual implementation of capacity projects, the remote wells and blocks developed have exceeded the conventional gathering and transportation radius. If they are brought into the system, there will be a series of problems that affect production, such as difficulty in transformation, unreasonable energy consumption, high economic costs, and high wellhead back pressure. The production and energy consumption of oil fields with three highs and one low (high water content, high energy consumption, high oil production rate, and low comprehensive recovery rate) determine that energy conservation is not only a need for sustainable development strategies, but also a need for the survival and development of oil companies themselves. High fuel gas consumption and electricity consumption are the prominent characteristics of oil field energy consumption. How to efficiently, economically and quickly solve the problem of saving electricity and energy in oil fields has become the focus of current oil and gas field production work.

[0003] In the past, a heating furnace was installed at the transfer station to heat the oil-water mixed liquid outside the station to 40-60℃ and then transport it to the joint station for processing. In production requirements, the oil can be heated to 40-50℃ for stable operation. Due to the high water content of the liquid, a large amount of heat energy is absorbed by water during the heating process, resulting in energy loss. The higher the water content of the liquid, the greater the energy consumption. Summary of the invention

[0004] In order to solve the problems existing in the prior art, the present invention is mainly aimed at the low-temperature cold transportation process requirements of high-water-content and associated gas blocks in the Northeast region. The heating, buffering, separation and air-cooling purification functions are highly integrated and skid-mounted to heat, buffer, separate and dry the incoming liquid to achieve full-process low-temperature cold transportation. After being equipped with auxiliary supporting facilities such as pumps, valves, pipelines, distribution boxes, RTU remote intelligent control systems, etc., it can replace the separators, heating furnaces, external transmission pumps, air cooling and other devices of conventional small transfer stations for high-water-content oil and gas mixed transportation. It solves the problems of scattered stations, complex process flows, single energy use and high energy consumption in traditional ground construction.

[0005] The technical solution of the present invention is as follows:

[0006] A heating and separation integrated device, a head is welded in a horizontal cylinder, the cylinder is divided into a heating chamber and a separation chamber, the chimney is connected to the heating chamber through a pipeline, an air-cooled dryer uses a saddle to sit on the cylinder of the heating chamber and the separation chamber, the heating coil is supported on the upper part of the heating chamber by a support, the fire tube and smoke tube combination structure is supported on the lower part of the heating chamber by a support, the burner is connected to the fire tube and smoke tube combination structure by bolts, the heat exchanger outlet and the heat exchanger inlet are respectively connected to the separation chamber through pipelines, and the oil and gas separation element is suspended in the separation chamber by a support.

[0007] Furthermore, the heating coil is welded to the tube sheet, the inlet and outlet are welded to the tube box, the tube box and the shell are connected by bolts, the tube sheet is clamped and connected, the slide is welded in the heating chamber, the support plate is welded to the heat exchange tube support plate, and is placed on the slide.

[0008] Furthermore, the tube sheet is expansion-welded with heat exchange tubes, and the tube box flange and the shell flange are connected with studs to clamp the tube sheet. When the heat exchange tube bundle needs to be pulled out, the studs are removed, the tube box is removed, and then the tube sheet and the heat exchange tube bundle are pulled out.

[0009] Furthermore, the cylindrical part of the fire tube and smoke tube combined structure is the fire tube, the tube bundle part is the smoke tube, and the part of the fire tube other than the furnace is designed as a corrugated fire tube. The part of the fire tube where the flame can reach is a straight tube, and the part other than the flame is a corrugated tube, and these two parts are collectively referred to as the fire tube.

[0010] Furthermore, the head is preferably a spherical cap head.

[0011] Furthermore, the air-cooled dryer is placed on the separation chamber at a fixed inclination angle to facilitate the discharge of condensed oil and water.

[0012] Furthermore, a refractory material having a length greater than or equal to the length of the flame tongue is laid inside the fire tube. The refractory material can be selected as refractory bricks.

[0013] Furthermore, the heating coil is welded with a DN50 steel pipe, which can increase the service life of the coil under conditions where dirt deposits cannot be cleaned.

[0014] The beneficial effects of the present invention are:

[0015] Compared with the prior art, the present invention integrates heating, buffering, separation and air cooling purification, and realizes the use of associated gas as fuel to heat the external liquid of the station and heat the operation room in the station in winter. After being equipped with auxiliary supporting facilities such as pumps, valves, pipelines, distribution boxes, RTU remote intelligent control systems, etc., it can replace conventional small transfer stations for high-water-content oil and gas mixed transportation, achieve energy saving, emission reduction, consumption reduction, concentrate processes, improve efficiency and avoid waste.

[0016] The present invention can meet the equipment requirements of the low-temperature cold transportation process, provide technical support for the effective implementation of the process, and enable the overall gathering and transportation system to achieve the goal of energy saving and consumption reduction. The skid-mounted equipment is not only convenient for transportation and installation, but also, if the oil recovery rate in the area decreases and production is stopped, the skid-mounted equipment can be transported to the mining area for continued use, thereby reducing the equipment investment cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings in the specification, which constitute a part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0018] In the attached picture:

[0019] Figure 1 This is a schematic diagram of the heating and separation integrated skid device of the present invention;

[0020] Figure 2 This is a structural diagram of the heat exchanger heating coil after modification of the present invention;

[0021] Figure 3 It is a connection diagram of the tube box, tube sheet and shell side of the heat exchange tube extractable structure of the present invention;

[0022] Figure 4 It is a structural diagram of the fire tube smoke pipe after modification of the present invention.

[0023] 1 chimney; 2 heating chamber; 3 separation chamber; 4 air-cooled dryer; 5 heating coil; 6 fire tube and smoke tube combination structure; 7 burner; 8 spherical crown head; 9 heat exchanger outlet; 10 heat exchanger inlet; 11 HXTP oil and gas separation element; 12 inlet; 13 outlet; 14 tube box; 15 tube sheet; 16 shell side shell; 18 slideway; 19 support plate; 21 smoke tube; 22 corrugated fire tube; 23 fire tube. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0026] In the present invention, unless otherwise specified, the directional words used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0027] Example 1

[0028] The present invention is a device integrating heating, buffering, separation and drying. It adopts a horizontal cylinder with elliptical heads at both ends and a spherical cap head in the middle, and the device is divided into a heating chamber and a separation chamber. The heating chamber is equipped with a fire tube, a smoke pipe and a heat exchanger to heat the liquid from the wellhead, and then send the heated liquid from the wellhead into the separation chamber. The separated gas pipeline is connected to an air cooler placed on the equipment for cooling and separation, and the dried associated gas is sent to the furnace in the heating chamber for combustion. The condensate is introduced into the separation chamber through a pipeline for centralized output.

[0029] like Figure 1 :The external liquid of the station is cold-transported and metered from the well field platform within 300m, and then filtered into the heating chamber 2 of the integrated device after primary filtration. After being heated by the heating coil 5, it is sent into the separation chamber 3 through the separation chamber pipeline of the heat exchanger outlet 9, and the gas-liquid separation is carried out in the separation chamber 3. The separated associated gas enters the air-cooled dryer 4 from the gas outlet of the separation chamber, and after being dried and purified, it goes out from the outlet of the air-cooled dryer 4, and enters the burner 7 of the heating chamber 2 through the burner pipeline for combustion; in order to further streamline the process, the air-cooled dryer 4 uses a saddle to sit on the cylinder of the separation chamber 3 and the heating chamber 2, and the condensate dried by the air-cooled dryer 4 is introduced into the separation chamber 3 through the condenser pipe. After being filtered, the separated liquid goes to the external transmission pump pipeline through the separation chamber outlet, and is pressurized and metered by the external transmission pump of the device and then transported to the joint station for processing. The heating part in the station directly uses the medium water in the heating chamber, and the flow circulation can increase the heat transfer efficiency. The medium water goes to the heating pump pipeline from the hot water outlet of the heating chamber, and goes to the heating pipeline after being pressurized by the heating pump. The heating chamber 2 and the separation chamber 3 are separated by a spherical cap-shaped head 8 with better force-bearing effect. After shortening the intermediate process, the residual heat of the heating chamber 2 can be transferred to the separation chamber 3 through the head, thereby jointly reducing heat loss.

[0030] like Figure 2 The present invention has a removable structure for the heating coil 5. This structure adopts the structure of a U-shaped tube sheet heat exchanger: the tube box 14 and the tube sheet 15 of the U-shaped tube sheet heat exchanger are extended out of the shell of the heating chamber 2, and only one section of the shell of the U-shaped tube sheet heat exchanger is left, one end of which is connected to the tube sheet 15 in the connection mode of the U-shaped tube sheet heat exchanger, and the other end is welded to the shell of the heating chamber 2 in the form of a pipe, so that the part connected to the heating chamber 2 is used as the shell of the U-shaped tube sheet heat exchanger. The pipe section can be used as the shell of the heat exchanger and can also support the heat exchange tube bundle and the tube sheet 15.

[0031] like Figure 3 When it needs to be repaired or cleaned, the bolts can be directly removed, and the tube box 14 and tube sheet 15 outside the heating chamber 2 together with the heat exchange tubes can be removed at the same time. After the processing is completed, it can be restored to production. In order to maximize the use of space and increase the heat exchange area, two sets of such U-shaped plate heat exchangers are installed in the upper space of the heating chamber 2, and the two sets of heat exchangers are connected in series through a connecting pipe. When the equipment is used in a small transfer station, one heat exchanger can be opened and one can be reserved considering the heat exchange demand, which is flexible to use.

[0032] like Figure 4 The present invention replaces the traditional smooth fire tube with a corrugated fire tube, and the smoke tube adopts a thin tube bundle structure. The corrugated fire tube technology can increase the heat exchange area of ​​the smoke tube from 8.9m 2 Increased to 61.9m 2 It increases the membrane heat transfer coefficient while increasing the heat radiation area, and can also axially compensate for the elongation and deformation of the fire tube due to heat.

[0033] The heating and separation integrated device is in the same device, and the device is divided into a heating chamber 2 and a separation chamber 3 by an intermediate spherical cap 8. The process is fully compressed under the premise of fusion without affecting the separate functions of the heating furnace and the separator. Since one side of the device is a pressure vessel and the other side is a normal pressure vessel, the intermediate partition adopts a spherical cap 8 with better force effect. The air-cooled dryer 4 is placed on the separation chamber 3 to facilitate the reflux of the condensate to the separation chamber 3, while saving the skid-mounted area.

[0034] The heating chamber 2 adopts a water-jacketed furnace structure: that is, a horizontal internal combustion two-pass fire tube smoke tube structure. This structure can effectively avoid the danger of directly heating the external liquid of the station with an actual water content of more than 90% and associated gas with a fire tube. The fire tube 23 is arranged in the lower space of the heating chamber 2, and the smoke tube 21 is arranged on the other side of the fire tube 23. The fire tube 23 and the smoke tube 21 form a U-shaped structure; the heating coil 5 is arranged in the upper space of the shell; the burner 7 and the chimney 1 are arranged in the front of the water-jacketed furnace. The external liquid of the station enters the heating coil 5, and the fire tube 23 heats the heating coil 5 through the heating medium water.

[0035] The fire tube 23 , the smoke pipe 21 and the chimney 1 constitute a combustion system of the heating chamber 2 .

[0036] The fire tube 23 works for a long time in high temperature and corrosive medium, and the pipe material needs to be selected based on factors such as design temperature, design pressure, and corrosive media inside and outside the pipe.

[0037] The main reasons for corrosion inside the fire tube 23 are contact with corrosive media and direct erosion by high-temperature flames.

[0038] The corrosive media in the fire tube 23 are mainly sulfur, cyclohexane acid, polythionic acid and hydrogen present in the fuel gas.

[0039] (1) Sulfur corrosion mainly depends on the type, content and stability of sulfide in the medium. When T≤120℃, sulfide is not decomposed and there is no corrosion in the absence of water; when 120℃<T<240℃, active sulfide is not decomposed and there is no corrosion; when 240℃<T<340℃, sulfide begins to decompose, corrosion begins and the corrosion intensifies with the increase of temperature; when 340℃<T<400℃, H2S begins to decompose into H2 and S, and then forms FeS film, which can prevent further corrosion, but in the presence of acid, the protective film will be destroyed, corrosion will further occur, and the corrosion of sulfide will be enhanced; when 426℃<T<480℃, high-temperature sulfur corrosion occurs, and the corrosion rate is very fast; when T>480℃, H2S decomposes and the corrosion rate decreases; when T>500℃, it is high-temperature oxidation corrosion.

[0040] (2) Cyclohexane acid corrosion: no corrosion occurs when T < 220 °C; the corrosion is greatest when 270 °C < T < 280 °C, and the corrosion decreases as the temperature rises; however, the corrosion increases sharply at 350 °C, and there is no corrosion above 400 °C.

[0041] (3) Hydrogen damage: mainly includes hydrogen blistering, hydrogen embrittlement, surface decarburization and hydrogen corrosion.

[0042] The corrosion outside the fire tube 23 is mainly caused by the corrosion of the medium outside the tube. The medium outside the fire tube 23 of this equipment is water, and the corrosion rate is low.

[0043] In order to prevent the flame from directly scouring the steel pipe of the fire tube 23, a refractory material having a length greater than or equal to the length of the flame tongue is laid inside the fire tube 23. The refractory material is selected as refractory bricks.

[0044] The size of the fire tube 23 is determined by considering: 1. the heat load inside the fire tube 23 and the average heat intensity of the outer surface of the fire tube; 2. the energy, form and arrangement of the burner 7. According to the "Fire Tube Heating Furnace Specification" GB / T713, Q345R is selected as the material for making the fire tube 23.

[0045] In order to adapt to the use of larger transfer stations, the power of the heating furnace in this equipment needs to be increased. When natural gas burns in the fire tube 23, the membrane heat transfer coefficient of the flue gas outside the tube is smaller than the membrane heat transfer coefficient of the medium inside the tube. If a fin tube or a butt tube is set on the flue gas side that plays a controlling role in thermal resistance, the heat transfer efficiency can be improved.

[0046] In order to apply the equipment to large-scale transfer stations, without increasing the structural size of the heating furnace to facilitate equipment skid installation and transportation, the design of this equipment changes the smooth fire tube tube to a corrugated fire tube tube. The corrugated fire tube 22 is machined without cutting, and ribs are squeezed into the tube to change the flow state of the retention layer on the inner wall of the tube, reduce the heat transfer resistance of the fluid and enhance the heat transfer effect. The corrugated fire tube 22 increases the membrane heat transfer coefficient while also increasing the heat transfer area; when the fire tube 23 expands at high temperature, the arc deformation of the corrugated fire tube 22 can compensate for the axial expansion and contraction of the fire tube, and play a certain protective role on the tube body.

[0047] The smoke pipe 21, as the convection chamber of the heating furnace, plays an important role in heat transfer. The purpose of heat transfer is achieved by transferring the heat of the flue gas to the medium water. The more the flue gas temperature drops, the more heat the water absorbs, and the higher the efficiency of the heating furnace.

[0048] The formula for the heat transfer coefficient of the outer film of the smooth tube is:

[0049] h0=16.8×10 -3 ψ·(G max 2 / 3 T g 0.3 ) / D0 1 / 8

[0050] Where: h0—heat transfer coefficient of tube outer film;

[0051] ψ—Correction coefficient of the number of tube rows. When the number of tube rows is more than 10, ψ=1. When the number of tube rows is less than 10, check the correction coefficient chart of the number of tube rows.

[0052] G max —Mass flow rate of flue gas at the minimum free cross section, kg / (m 2 h);

[0053] D0—outer diameter of the tube;

[0054] T g —average temperature of flue gas, K;

[0055] It can be deduced from the formula that the heat transfer coefficient of the outer film of the tube can be increased by increasing the number of rows of the smoke tubes 21 , increasing the flow rate of the smoke tubes 21 , and reducing the outer diameter of the smoke tubes 21 .

[0056] Taking into account the resistance of the smoke tube 21 to the smoke, the height of the chimney and the matching of the burner 7, and referring to the structural characteristics of the 630KW heating furnace, the smoke tube structure is optimized to further improve the thermal efficiency: the diameter of the smoke tube 21 is reduced and the number of layers of the smoke tube 21 is increased. The application of this design increases the heat transfer coefficient of the outer film while also increasing the heat exchange area, so that more heat in the smoke is transferred to the medium water, reducing heat loss and thus achieving the effect of improving thermal efficiency.

[0057] The external liquid directly enters the heating coil 5 of this equipment, and the external medium of the coil is water. The heat is transferred to the external liquid in the coil through the fire tube 23 and the smoke pipe 21 through the water. The heating coil 5 adopts the classic water jacket furnace coil structure, which makes maximum use of the remaining space in the heating chamber, and divides the incoming liquid manifold into 13 paths evenly, and goes back and forth 6 times, so that the incoming liquid can absorb heat in the heating chamber to the greatest extent. The heating coil 5 is welded with a DN50 steel pipe, which can increase the service life of the coil under the condition that the dirt deposits cannot be cleaned.

[0058] During the production and operation of the heating coil 5, sediments are easily accumulated on the oil side and scale is easily accumulated on the water medium side. The accumulated solid sediments mainly include salts, coke, rust and scale, and the free sediments include carbon black, silt, clay and coke powder. Low fluid flow rate, increased temperature or pipe wall temperature higher than the main fluid temperature, rough pipe wall or dead corners in the structure, increased coke, paraffin and mechanical impurities in the oil, and increased water hardness will accelerate the deposition of dirt on the inner wall of the heating coil, increasing thermal resistance and flow resistance.

[0059] In order to promote the adaptability of the equipment and make it suitable for transfer stations with larger processing capacity and higher requirements for conveying temperature increase, the structure of the heating coil 5 is further optimized and designed to be a structure that can be cleaned regularly. Referring to the structural idea of ​​the U-tube sheet heat exchanger, the tube box 14 and tube sheet 15 of the U-tube sheet heat exchanger are extended out of the shell of the heating chamber 2, and a section of the shell of the U-tube sheet heat exchanger is retained. One end is connected to the tube sheet 15 in the connection method of the U-tube sheet heat exchanger, and the other end is welded to the shell of the heating chamber 2 in the form of a pipe, so that the part connected to the heating chamber 2 is used as the shell of the U-tube sheet heat exchanger, which can be used as the shell of the heat exchanger and can also support the heat exchange tube bundle and the tube sheet 15. When the heating tube needs to be repaired or cleaned, the bolts can be directly removed, and the tube box 14 located outside the heating chamber can be removed together with the tube sheet 15 and the heating tube, and the corrosion and scaling of each heat exchange tube can be checked. After the treatment is completed, the production is resumed. In order to maximize the use of space and increase the heat exchange area, two sets of U-shaped plate heat exchangers are installed in the space above the heating chamber, and the two sets of heat exchangers are connected in series through a connecting pipe. When the equipment is operated in a small-scale transfer station with low temperature increase requirements, only one set of heat exchangers can be connected, and the other set of heat exchangers can be used as a backup or flexibly.

[0060] The lowest temperature in the Northeast region in winter can reach below -30℃. The transfer station requires manual maintenance, and the production and living environment requires heating facilities. In order to make efficient use of heat energy, the hot water in the heating chamber is directly introduced into the heating system in the station for circulation. After the hot water in small and medium-sized transfer stations circulates for one week, the room temperature of each operating room in the station can fully reach the winter indoor heating temperature specified in the "Oilfield Oil and Gas Gathering and Transportation Design Code" GB50350-2015. At the same time, the direct use of hot water circulation in the heating chamber can increase the fluidity of hot water, which is equivalent to increasing the convection of hot water in the heating furnace and the fluid from the well group in the coil, thereby increasing the heat transfer coefficient, the heat transfer coefficient between the fire tube smoke pipe and water, and the heat transfer coefficient between water and the heating coil at the same time, and the heat exchange effect is better.

[0061] Separation chamber 3 is mainly used for oil and gas separation. The separation chamber 3 of this equipment uses the relatively mature HXTP oil and gas separation element. Through the collision of liquid entering the separation chamber, separation of the oil and gas separation element, and further interception and capture of small droplets by the mist capture element, small droplets larger than 100μm in the associated gas are removed, which is conducive to the full combustion of the associated gas.

[0062] The HXTP oil-gas separation element 11 is composed of a series of serpentine corrugated plates stacked at fixed intervals. A tortuous and variable cross-section flow channel is formed between two adjacent corrugated plates. The cross-sectional area of ​​the inclined flow channel is about 29.3% smaller than that of the straight part. When the natural gas carrying mist flows through it, the speed and direction of movement are constantly changing. Under the action of collision, centrifugal force and vortex mechanism, the mist is adsorbed by the wetted corrugated surface and flows into the liquid collection area at the bottom of the separator in the form of a liquid film. In a conventional horizontal airflow structure, if there is enough volume to allow the gas to flow upward after passing through the blades, and to allow the liquid flow downward through the gap between the serpentine blades to splash and settle, these liquid droplets must be large enough to settle, and the allowable airflow speed can be determined by limiting and reducing. Excessive airflow speed will prevent the collected droplets from settling and carry them into the gas again. If the process volume is insufficient, the K factor of the upward airflow and downward liquid flow through the blades will also be reduced. Under this limiting condition, the allowable liquid load of the device is small. Top view of the serpentine blade demister. The gas flows in a flow channel with a reciprocating change in cross section and changes direction continuously. When the gas flows in an oblique flow channel, the cross-sectional area decreases by 29.3% and the flow rate increases by 41.4%; when the gas flows in a straight section, the speed slows down and brings the liquid on the wetted surface to the eddy area to accumulate into larger liquid droplets, which flow into the aggregated liquid area under the action of gravity.

[0063] The air-cooled dryer 4 adopts an existing mature structure, combining a manifold and a discharge pipe, so that the separated gas reciprocates in the manifold and the discharge pipe, and the small droplets formed by the natural cooling of water vapor collide with each other and gather into large droplets during the reciprocating motion, and drip to the bottom manifold under the action of gravity. The air-cooled dryer 4 is placed on the separation chamber 3 with a fixed inclination angle to facilitate the discharge of condensed oil and water.

[0064] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0065] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0066] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heating and separation integrated device, characterized in that: The head is welded in the horizontal cylinder to divide the cylinder into a heating chamber (2) and a separation chamber (3); the chimney (1) is connected to the heating chamber (2) through a pipeline; the air-cooled dryer (4) is seated on the cylinders of the heating chamber (2) and the separation chamber (3) using a saddle; the heating coil (5) is supported on the upper part of the heating chamber (2) by a support; the fire tube and smoke tube combination structure (6) is supported on the lower part of the heating chamber (2) by a support; the burner (7) is connected to the fire tube and smoke tube combination structure (6) by bolts; the heat exchanger outlet (9) and the heat exchanger inlet (10) are respectively connected to the separation chamber (3) through pipelines; and the oil and gas separation element (11) is suspended in the separation chamber (3) by a support.

2. The heating and separation integrated device according to claim 1, characterized in that: The heating coil (5) is welded to the tube sheet (15), the inlet (12) and the outlet (13) are welded to the tube box (14), the tube box (14) is connected to the shell side shell (16) by bolts, the tube sheet (15) is clamped and connected, the slideway (18) is welded in the heating chamber (2), and the support plate (19) is welded to the heat exchange tube support plate and placed on the slideway (18).

3. The heating and separation integrated device according to claim 1, characterized in that: The tube sheet (15) is expansion-welded with heat exchange tubes, and the tube box flange and the shell flange are connected by studs to clamp the tube sheet (15). When the heat exchange tube bundle needs to be pulled out, the studs are removed, the tube box (14) is removed, and then the tube sheet (15) and the heat exchange tube bundle are pulled out.

4. The heating and separation integrated device according to claim 1, characterized in that: The fire tube and smoke tube combined structure (6) comprises a fire tube (23) and a smoke tube (21), and the part of the fire tube (23) other than the furnace is designed as a corrugated fire tube (22).

5. The heating and separation integrated device according to claim 1, characterized in that: The sealing head is a spherical cap-shaped sealing head (8).

6. The heating and separation integrated device according to claim 1, characterized in that: The air-cooled dryer (4) is placed on the separation chamber (3) at a fixed inclination angle.

7. The heating and separation integrated device according to claim 4, characterized in that: The interior of the fire tube (23) is paved with a refractory material having a length greater than or equal to the length of the flame tongue.

8. The heating and separation integrated device according to claim 1, characterized in that: The heating coil (5) is welded from a DN50 steel pipe.

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