Modularized MEG regeneration device

Abstract

The utility model discloses a modularized MEG regeneration device, which relates to the technical field of MEG regeneration gas equipment, and comprises a module frame, an upper integrated component module, a lower integrated component module, a pipeline system and a control system, the upper integrated component module is detachably arranged above the module frame, the lower integrated component module is arranged below the module frame, and the pipeline system is arranged below the module frame. The pipeline system is used for communicating the interiors of the upper integrated assembly module and the lower integrated assembly module; and the upper integrated assembly module, the lower integrated assembly module and the pipeline system are all in signal connection with the control system. According to the utility model, the modularized design is adopted, so that the on-site construction workload is greatly reduced. On the premise that the module meets the transportation limitation requirement, vertical and horizontal equipment, pipelines and electrical instrument elements are all arranged in one module and can be integrally hoisted and transported. The on-site reinstallation workload is small, the occupied area is small, the types of on-site structure foundations are reduced, concrete foundation construction is simplified, and the civil construction speed is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to MEG regenerative gas equipment technical field more specifically relates to a modular MEG regeneration device technical field. BACKGROUND

[0002] The current common natural gas dewatering regeneration device has MEG regeneration device (glycol regeneration device) and TEG regeneration device (triethylene glycol regeneration device). The TEG device is mainly composed of two parts of absorption system and regeneration system, wherein the absorption tower is the core equipment of the process. The raw natural gas enters from the bottom of the absorption tower, and is countercurrently contacted with the triethylene glycol lean liquid entering from the top, the dehydrated natural gas leaves from the top of the absorption tower, the triethylene glycol rich liquid is discharged from the bottom, and after being warmed by the discharge pipe of the top condenser of the regeneration tower, it enters the flash tank to flash out the dissolved hydrocarbon gas therein as much as possible. The liquid phase leaving the flash tank is filtered by the filter and then flows into the lean / rich liquid heat exchanger and buffer tank, and after being further warmed, it enters the regeneration tower. In the regeneration tower, the water in the triethylene glycol rich liquid is removed at low pressure and high temperature by heating, and the regenerated triethylene glycol lean liquid is cooled by the lean / rich liquid heat exchanger and then pumped into the top of the absorption tower by the glycol pump for recycling.

[0003] The MEG regeneration device has strong adaptability to project scale and is widely applied. MEG regeneration mainly involves physical reaction, which separates the gas in the solution by evaporation through heating;

[0004] However, the existing MEG regeneration device has the problems of scattered equipment arrangement, large occupied area, insufficient pipeline layout optimization, high investment and operation energy consumption, and the construction unit needs to invest a large amount of machinery and manpower for on-site welding and installation during on-site installation and construction, thereby prolonging the construction period. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the above technical problems, and provides a modular MEG regeneration device.

[0006] The utility model adopts the following technical scheme to achieve the above purpose:

[0007] The utility model provides a modular MEG regeneration device, which comprises a module frame, an upper integrated component module, a lower integrated component module, a pipeline system and a control system, the upper integrated component module is detachably arranged above the module frame, the lower integrated component module is installed below the module frame, the pipeline system is connected to the inside and between the upper integrated component module and the lower integrated component module, and the upper integrated component module, the lower integrated component module and the pipeline system are signal-connected with the control system.

[0008] Specifically, the module is divided into an upper integrated component module and a lower integrated component module, and the upper integrated component module and the lower integrated component module are arranged on the module frame. The upper integrated component module and the lower integrated component module are connected by detachable nodes. The devices in the upper integrated component module and the lower integrated component module meet the requirements of core extraction and maintenance. The control valves, hand valves, instruments for observation, control cabinets of the control system, analyzers and other facilities on the upper integrated component module and the lower integrated component module are arranged at positions convenient for operation. The control system controls the devices in the upper integrated component module and the lower integrated component module to have an automatic control level and can be remotely controlled in a central control room.

[0009] The modular design greatly reduces the construction workload on site. On the premise of meeting the transportation requirements (four aspects of length, width, height and weight), vertical and horizontal devices, pipelines, electrical and instrument elements are arranged in a module, which can be hoisted and transported as a whole. The on-site reassembly workload is small, the occupied area is small, the types of on-site structural foundations are reduced, the concrete foundation construction is simplified, and the speed of civil construction is improved.

[0010] The modular construction method is adopted, and the modules are manufactured at a remote place, transported to the project site for installation, debugging and operation, which effectively avoids many unfavorable factors such as labor shortage, high labor cost, insufficient gathering and transportation workers, scarcity of large equipment, low construction efficiency, harsh climate and environment, strict environmental protection requirements, and tight construction period.

[0011] In one embodiment, the module frame includes a lower layer bottom plate, an upper layer bottom plate, a column assembly, and a beam assembly. The column assembly includes multiple columns welded to the edges of the lower layer bottom plate. The beam assembly includes multiple beams connected to the top of the multiple columns. The multiple beams form a two-layer skeleton frame for supporting the upper layer bottom plate.

[0012] Specifically, the top of the beam of the lower layer bottom plate is 0.25 m high, and the top of the beam of the upper layer bottom plate is 2.85 m high. The lower layer bottom plate and the upper layer bottom plate are both provided with a connection beam layer for arranging pipelines. A maintenance channel is arranged between the upper integrated component module and the lower integrated component module.

[0013] In one embodiment, the module frame further includes a diagonal brace assembly, a railing, and a ladder. The diagonal brace assembly includes multiple diagonal braces arranged inside the two-layer skeleton frame. The railing is arranged at the edge of the two-layer skeleton frame or the upper layer bottom plate. The ladder includes a first layer ladder connected to the lower layer bottom plate and a second layer ladder connected to the upper layer bottom plate. The first layer ladder includes an inclined ladder, and the second layer ladder includes a straight ladder and an inclined ladder.

[0014] Specifically, the module frame is composed of a lower base plate, an upper base plate, a plurality of vertical columns, a plurality of horizontal beams, a plurality of diagonal struts, a railing, an inclined ladder, a straight ladder, etc. The vertical columns are welded to the lower base plate, the horizontal beams are welded to the vertical columns, the diagonal struts are arranged according to structural mechanics calculation, the railing is welded to the horizontal beams at the second floor or the upper base plate, the inclined ladder is bolted to the horizontal beams, the straight ladder is bolted to the vertical columns and the horizontal beams, and the inclined ladder and the straight ladder are detached and transported with the vehicle. The equipment base is connected to the steel structure base plate by bolts.

[0015] In one embodiment, the upper integrated assembly module includes a regeneration tower, a reboiler, and a filter assembly, all of which are mounted on the upper base plate.

[0016] The lower integrated assembly module includes an electric heater, a three-phase separator, a regeneration gas separation tank, a sewage pump, a buffer tank, and an injection pump, all of which are mounted on the lower base plate.

[0017] The material inlet of the electric heater is connected to the MEG rich liquid feeding pipeline, the material outlet of the electric heater is connected to the material inlet of the three-phase separator, the material outlet of the three-phase separator is connected to the material inlet of the filter assembly, the material outlet of the filter assembly is connected to the material inlet of the regeneration tower, the distillation outlet of the regeneration tower is connected to the gas inlet of the regeneration gas separation tank, and the liquid outlet of the regeneration gas separation tank is connected to the outside through a pipeline with a sewage pump.

[0018] The reboiler is connected to the bottom of the regeneration tower, the bottom liquid outlet of the reboiler is connected to the liquid inlet of the buffer tank, and the buffer tank is connected to the MEG lean liquid outlet pipeline through a pipeline with an injection pump.

[0019] Specifically, the lower base plate mainly arranges the valve group and pipeline from the three-phase separator, its bottom to the outside, the valve group and pipeline from the regeneration gas separation tank, its bottom to the sewage pump, the valve group and pipeline from the buffer tank to the first injection pump and the second injection pump, and the blowdown valve group and pipeline of each equipment.

[0020] The upper base plate mainly arranges the inlet and outlet pipelines of the second floor equipment, safety valves, regulating valves, and vent valve groups. A connecting beam interlayer is provided below the upper base plate for laying pipelines, inlet and outlet module pipelines, cable bridges, and instrument bridges.

[0021] In one embodiment, the position of the regeneration tower is higher than that of the regeneration gas separation tank, and the position of the regeneration gas separation tank is higher than that of the sewage pump.

[0022] In one embodiment, the injection pump includes a first injection pump and a second injection pump arranged side by side on the pipeline.

[0023] In an embodiment, the filtering assembly comprises a pre-filter, an activated carbon filter and a post-filter connected in series, and the pre-filter, the activated carbon filter and the post-filter are semi-hung on the edge of the frame of the two-layer skeleton;

[0024] The material inlet of the pre-filter is communicated with the material outlet of the three-phase separator, and the material outlet of the post-filter is communicated with the material inlet of the regeneration tower.

[0025] In an embodiment, a material pre-heater is arranged in the buffer tank, the MEG rich liquid feeding pipeline is communicated with the inlet of the material pre-heater, and the outlet of the material pre-heater is communicated with the material inlet of the electric heater.

[0026] In an embodiment, the top gas outlet of the three-phase separator, the top gas outlet of the regeneration tower and the top gas outlet of the regeneration gas distribution tank are all provided with a vent pipeline communicated with the outside.

[0027] In an embodiment, the control system comprises a weak power control cabinet and a strong power control cabinet, and the weak power control cabinet and the strong power control cabinet are both installed on the lower floor.

[0028] Specifically, the weak power control cabinet is arranged on the lower floor, facilitating overall control. The instrument bridge is arranged on the interlayer connecting beam and connected to the pressure, temperature, control valve and distribution box through a threading pipe, so as to realize remote control and monitoring, and the external interface is connected by a cable terminal.

[0029] The strong power control cabinet is also arranged on the lower floor and is responsible for the control of the power switch in the module. The cable bridge is arranged on the interlayer connecting beam and connected to each electric heater and lighting fixture through a threading pipe. The external interface is connected by a cable terminal.

[0030] Working principle:

[0031] The MEG rich liquid in the MEG rich liquid feeding pipeline is preheated by the buffer tank and then enters the electric heater to heat the MEG rich liquid, and the natural gas and CO2 in the MEG rich liquid are separated by the three-phase separator and discharged to the vent system. The natural gas and CO2 in the MEG rich liquid are heated and the remaining MEG rich liquid enters the pre-filter, the activated carbon filter and the post-filter in turn to filter out impurities, and then the MEG lean liquid and the condensate oil obtained by the MEG rich liquid entering the regeneration tower are obtained. The MEG lean liquid passes through the reboiler, the buffer tank and then the first injection pump and / or the second injection pump to the outside, and the condensate oil is pumped out of the outside by the sewage pump.

[0032] The scheme realizes the evaporation separation of the MEG rich liquid. After the natural gas and CO2 in the MEG rich liquid are heated and evaporated, the MEG lean liquid is cooled and separated and then pumped out of the outside.

[0033] In order to facilitate the upper integrated component module or the lower integrated component module, the module inner pipe has enough support after the pipe and the outer pipe are split, the support point is arranged at the position of 100mm from the flange of the pipe split point to the edge of the beam, the heat preservation pipe is placed in the center of the beam with the pipe support as the center, and the position of the split flange is arranged.

[0034] The lower layer bottom plate is provided with a sandwich connecting beam for supporting the pipe, all the pipes provided with valves in the module are arranged on the connecting beam with the elevation changed, the connecting beam has an operation and maintenance channel with a clear height of 2.2m, and the corresponding equipment, the program-controlled valve and the manual valve are convenient for operation and maintenance. The electric heater and the filter are hung on the ear-shaped equipment, and the lower layer bottom plate is provided with a reverse L-shaped support equipment ear.

[0035] The upper integrated component module or the lower integrated component module is provided with a split flange at the end of the connecting beam pipe belt, so that the connection with the external pipe is facilitated. The whole module is arranged neatly and beautifully, and the operation space is sufficient.

[0036] The inner equipment of the upper integrated component module or the lower integrated component module is connected with the external process interface through a flange, and only the flange and the cable terminal are connected after the module is placed on site.

[0037] The utility model discloses the beneficial effects are as follows:

[0038] 1. The utility model discloses a module is divided into upper integrated component module, lower integrated component module, concentrates upper integrated component module, lower integrated component module etc. on the module frame. Upper integrated component module, lower integrated component module adopt detachable node connection between each other. The equipment in the upper integrated component module and the lower integrated component module all satisfy the needs such as core pulling, maintenance etc. The control valve and the hand valve on the upper integrated component module and the lower integrated component module need to observe the instrument, the control cabinet of control system, analysis appearance etc. facility arrangement is in the position convenient for operation. The control system controls the internal equipment of upper integrated component module and lower integrated component module and has the automatic control level, can be controlled remotely in the central control room.

[0039] Adopt modular design, greatly reduce the construction workload on site. On the premise that the module meets the transportation limit requirement, vertical and horizontal equipment, pipe, electrical instrument element are all arranged in a module, can be hoisted and transported integrally. The site reassembling workload is less, the land occupation is small, and the types of site structure foundation are reduced, the concrete foundation construction is simplified, and the civil construction speed is improved.

[0040] 2. The equipment arrangement meets the requirements of process flow, safety production and environmental protection, and the equipment arrangement is arranged according to the principles of process flow sequence and proper concentration of similar equipment, and meets the requirements of modular arrangement, so that the module gravity center position is as centered as possible, and the main pipe belt and the equipment axis are coordinated with the upstream and downstream devices.

[0041] 3. The utility model discloses a filter, injection pump, control valve and the instrument, control cabinet, analysis appearance etc. that need to be observed, are arranged in the position of module convenient operation or set up operation platform, ladder etc., satisfy the ergonomics requirement.

[0042] 4. The utility model discloses the foundation of equipment and pipeline is placed on the module steel base, reduces the field concrete foundation construction engineering quantity, saves the project period.

[0043] 5. The utility model discloses the skid factory prefabrication effectively avoids the influence of construction environment, on-site weather etc. to the project progress. Reduce the risk of high-altitude operation, reduce the construction difficulty, guarantee the construction safety. DRAWINGS

[0044] In order to make the technical scheme of the embodiments of the utility model clearer, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0045] Fig. 1 It is a process principle diagram of the modular MEG regenerating device;

[0046] Fig. 2 It is the equipment planar arrangement drawing of the upper integrated assembly module;

[0047] Fig. 3 It is the equipment planar arrangement drawing of the lower integrated assembly module;

[0048] Fig. 4 It is an assembly drawing of the modular MEG regenerating device;

[0049] Drawing reference: 1-electric heater, 2-three-phase separator, 3-pre-filter, 4-activated carbon filter, 5-post-filter, 6-regeneration tower, 7-reboiler, 8-buffer tank, 9-first injection pump, 10-second injection pump, 11-regeneration gas separation tank, 12-sewage pump, 13-strong electric control cabinet, 14-weak electric control cabinet. DETAILED DESCRIPTION

[0050] In order to make the technical scheme, technical scheme and technical effect of the utility model clearer, the following will combine the drawings in the embodiments of the utility model, and the technical scheme in the embodiments of the utility model will be described clearly and completely, obviously, the described embodiments are a part of the embodiments of the utility model, not all the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0051] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0052] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used for differentiation, and cannot be understood as indicating or implying relative importance.

[0053] In the description of the embodiments of the present application, it should be noted that the orientation or position relationship indicated by the terms "inner", "outer", "upper", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship commonly used when the product of the present application is used, which is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.

[0054] Embodiment 1

[0055] As shown in Figs. 1 to 4 The present embodiment provides a modular MEG regeneration device, which comprises a module frame, an upper integrated component module, a lower integrated component module, a pipeline system and a control system. The upper integrated component module is detachably arranged above the module frame, the lower integrated component module is installed below the module frame, the pipeline system connects the interiors and between the upper integrated component module and the lower integrated component module, and the upper integrated component module, the lower integrated component module and the pipeline system are signal connected with the control system.

[0056] Specifically, the module is divided into the upper integrated component module and the lower integrated component module, and the upper integrated component module and the lower integrated component module are concentrated on the module frame. The upper integrated component module and the lower integrated component module are connected by detachable nodes in their respective interiors. The devices in the interiors of the upper integrated component module and the lower integrated component module meet the needs of core extraction, maintenance, etc. The control valves and hand valves on the upper integrated component module and the lower integrated component module, the instruments that need to be observed, the control cabinet of the control system and the analysis instruments are arranged at positions convenient for operation. The control system controls the interior devices of the upper integrated component module and the lower integrated component module to have an automatic control level and can be remotely controlled in the central control room.

[0057] The modular design greatly reduces the construction workload on site. On the premise of meeting the transportation limit (four aspects of length, width, height and weight) requirements, vertical and horizontal equipment, pipelines, electrical and instrumentation components are arranged in a module, which can be hoisted and transported as a whole. The site reassembly workload is small, the land occupation is small, and the types of site structure foundation are reduced, the concrete foundation construction is simplified, and the civil construction speed is improved.

[0058] The present scheme adopts a modular construction method, which is manufactured at a different site, transported to the project site for installation, debugging and operation, effectively avoiding many unfavorable factors such as labor shortage, high labor cost, insufficient gathering and transportation workers, scarcity of large equipment, low construction efficiency, harsh climate and environment, strict environmental protection requirements, and tight construction period.

[0059] Embodiment 2

[0060] This embodiment is further optimized on the basis of embodiment 1, specifically:

[0061] The module frame includes a lower bottom plate, an upper bottom plate, a column assembly, and a beam assembly. The column assembly includes multiple columns welded to the edge of the lower bottom plate. The beam assembly includes multiple beams connected to the top of the multiple columns. The multiple beams form a two-layer skeleton frame for supporting the upper bottom plate.

[0062] Specifically, the beam top of the lower bottom plate is 0.25 m high, and the beam top of the upper bottom plate is 2.85 m high. The lower bottom plate and the upper bottom plate are both provided with a connection beam layer for arranging pipelines. A maintenance channel is provided between the upper integrated component module and the lower integrated component module.

[0063] The module frame further includes a diagonal brace assembly, a railing, and a ladder. The diagonal brace assembly includes multiple diagonal braces arranged inside the two-layer skeleton frame. The railing is arranged at the edge of the two-layer skeleton frame or the upper bottom plate. The ladder includes a first-layer ladder connected to the lower bottom plate and a second-layer ladder connected to the upper bottom plate. The first-layer ladder includes an inclined ladder, and the second-layer ladder includes a straight ladder and an inclined ladder.

[0064] Specifically, the module frame is composed of a lower bottom plate, an upper bottom plate, multiple columns, multiple beams, multiple diagonal braces, a railing, an inclined ladder, and a straight ladder. The columns are welded to the bottom plate. The beams are welded to the columns. The diagonal braces are arranged according to structural mechanics calculations. The railing is welded to the two-layer bottom beam or the upper bottom plate. The inclined ladder is bolted to the beam. The straight ladder is bolted to the columns and beams. The inclined ladder and the straight ladder are detached and transported by vehicle. The equipment base is connected to the steel structure bottom plate by bolts.

[0065] Embodiment 3

[0066] This embodiment is further optimized on the basis of embodiment 2, specifically:

[0067] The upper integrated assembly module comprises a regenerator 6, a reboiler 7 and a filter assembly, all of which are mounted on the upper layer base plate,

[0068] The lower integrated assembly module comprises an electric heater 1, a three-phase separator 2, a regenerated gas separation tank 11, a sewage pump 12, a buffer tank 8 and an injection pump, all of which are mounted on the lower layer base plate;

[0069] The material inlet of the electric heater 1 is communicated with the MEG rich liquid feeding pipeline, the material outlet of the electric heater 1 is communicated with the material inlet of the three-phase separator 2, the material outlet of the three-phase separator 2 is communicated with the material inlet of the filter assembly, the material outlet of the filter assembly is communicated with the material inlet of the regenerator 6, the distillation outlet of the regenerator 6 is communicated with the gas inlet of the regenerated gas separation tank 11, and the liquid outlet of the regenerated gas separation tank 11 is communicated with the outside through the pipeline with the sewage pump 12;

[0070] The reboiler 7 is communicated with the bottom of the regenerator 6, the bottom liquid outlet of the reboiler 7 is communicated with the liquid inlet of the buffer tank 8, and the buffer tank 8 is communicated with the MEG lean liquid outlet pipeline through the pipeline with the injection pump.

[0071] Specifically, the lower layer base plate mainly arranges the valve group and pipeline from the three-phase separator 2, the bottom thereof to the boundary, and the flow meter pipeline; arranges the valve group and pipeline from the regenerated gas separation tank 11, the bottom thereof to the sewage pump 12; arranges the valve group and pipeline from the buffer tank 8 to the first injection pump 9 and the second injection pump 10; and arranges the sewage valve group and pipeline of each device.

[0072] The upper layer base plate mainly arranges the inlet and outlet pipelines of the second layer device, the safety valve, the adjusting valve and the vent valve group; a connecting beam interlayer is arranged below the upper layer base plate, which is mainly used for laying the pipeline connecting the lower integrated assembly module and the upper integrated assembly module, the inlet and outlet module pipeline, the cable bridge and the instrument bridge.

[0073] Embodiment 4

[0074] This embodiment is further optimized on the basis of embodiment 3, specifically:

[0075] The position of the regenerator 6 is higher than that of the regenerated gas separation tank 11, and the position of the regenerated gas separation tank 11 is higher than that of the sewage pump 12.

[0076] The injection pump comprises the first injection pump 9 and the second injection pump 10 arranged side by side on the pipeline.

[0077] The filter assembly comprises a pre-filter 3, an activated carbon filter 4 and a post-filter 5 connected in sequence, and the pre-filter 3, the activated carbon filter 4 and the post-filter 5 are half-hung on the edge of the frame of the second layer skeleton.

[0078] The material inlet of the pre-filter 3 is communicated with the material outlet of the three-phase separator 2, and the material outlet of the post-filter 5 is communicated with the material inlet of the regeneration tower 6.

[0079] A material pre-heater is arranged in the buffer tank 8, the MEG rich liquid feeding pipeline is communicated with the inlet of the material pre-heater, and the outlet of the material pre-heater is communicated with the material inlet of the electric heater 1.

[0080] The top gas outlet of the three-phase separator 2, the top gas outlet of the regeneration tower 6 and the top gas outlet of the regeneration gas distribution tank 11 are all provided with a vent pipeline communicated with the outside.

[0081] The control system comprises a weak power control cabinet 14 and a strong power control cabinet 13, and the weak power control cabinet 14 and the strong power control cabinet 13 are both installed on the lower floor.

[0082] Specifically, the weak power control cabinet 14 is arranged on the lower floor, facilitating overall control. The instrument bridge is arranged on the interlayer connecting beam and is connected to the pressure, temperature, control valve and distribution box through a threading pipe, so as to realize remote control and monitoring, and the external interface is connected by a cable terminal.

[0083] The strong power control cabinet 13 is also arranged on the lower floor and is responsible for the control of the power switch in the module. The cable bridge is arranged on the interlayer connecting beam and is connected to each electric heater 1 and lighting fixture through a threading pipe. The external interface is connected by a cable terminal.

[0084] Working principle:

[0085] The MEG rich liquid in the MEG rich liquid feeding pipeline is preheated by the buffer tank 8 and then enters the electric heater 1 to heat the MEG rich liquid, and the natural gas and CO2 in the MEG rich liquid are separated by the three-phase separator 2 and then enter the vent system. The natural gas and CO2 in the MEG rich liquid are heated and evaporated, and the remaining MEG rich liquid enters the pre-filter 3, the activated carbon filter 4 and the post-filter 5 in turn to filter out impurities, and then enters the regeneration tower 6 to obtain MEG lean liquid and condensate oil. The MEG lean liquid passes through the reboiler 7, the buffer tank 8, the first injection pump 9 and / or the second injection pump 10 in turn and is sent to the outside, and the condensate oil is sent to the outside by the sewage pump 12.

[0086] The scheme realizes the evaporation and separation of the MEG rich liquid. The natural gas and CO2 in the MEG rich liquid are heated and evaporated, and the MEG lean liquid is cooled and separated and then pumped out of the system.

[0087] In order to facilitate the separation of the pipeline in the upper integrated component module or the lower integrated component module from the external pipeline and provide sufficient support for the pipeline in the module, a support point is arranged at a position 100 mm away from the edge of the beam based on the flange distance of the pipeline separation point, the heat preservation pipeline is placed in the center of the beam based on the center of the pipe support, and the position of the separation flange is arranged.

[0088] The lower floor is provided with a sandwich connecting beam for supporting the pipelines. The pipelines of the module with installed valves are arranged on the connecting beam with changed elevation. The connecting beam has a clear height of 2.2m for operation and maintenance channel, which is convenient for operation and maintenance of the corresponding equipment, program-controlled valve and manual valve. The electric heater 1 and the filter-hanging ear type equipment are provided with inverted L-shaped supporting equipment hanging ears under the lower floor.

[0089] The external connecting pipelines of the upper integrated assembly module and the lower integrated assembly module are provided with split flanges at the end of the connecting beam, which is convenient for connection with the external pipelines. The whole module is arranged neatly and beautifully, and has sufficient operation space.

[0090] The internal equipment of the upper integrated assembly module or the lower integrated assembly module is connected with the external process interface by flanges. After the module is placed on site, only the flanges and the cable connection ends need to be connected.

Claims

1. A modular MEG regeneration apparatus, characterized by, The module frame, the upper integrated component module, the lower integrated component module, the pipeline system and the control system, the upper integrated component module is detachably arranged above the module frame, the lower integrated component module is installed below the module frame, the pipeline system is communicated inside and between the upper integrated component module and the lower integrated component module, the upper integrated component module, the lower integrated component module and the pipeline system are signal connected with the control system.

2. The modular MEG regeneration apparatus of claim 1, wherein, The module frame includes a lower layer bottom plate, an upper layer bottom plate, a column assembly and a beam assembly, the column assembly includes a plurality of columns welded on the edge of the lower layer bottom plate, the beam assembly includes a plurality of beams connected on the top of the columns, and the plurality of beams constitute a two-layer skeleton frame for supporting the upper layer bottom plate.

3. A modular MEG regeneration apparatus according to claim 2, wherein, The module frame further includes a diagonal brace assembly, a handrail and a ladder, the diagonal brace assembly includes a plurality of diagonal braces arranged inside the two-layer skeleton frame, the handrail is arranged on the edge of the two-layer skeleton frame or the upper layer bottom plate, the ladder includes a first-layer ladder connected with the lower layer bottom plate and a second-layer ladder connected with the upper layer bottom plate, the first-layer ladder includes an inclined ladder, and the second-layer ladder includes a straight ladder and an inclined ladder.

4. The modular MEG regeneration apparatus of claim 2, wherein, The upper integrated component module includes a regenerator (6), a reboiler (7) and a filter assembly, all of which are installed on the upper layer bottom plate, The lower integrated component module includes an electric heater (1), a three-phase separator (2), a regenerative gas separation tank (11), a sewage pump (12), a buffer tank (8) and an injection pump, all of which are installed on the lower layer bottom plate; The material inlet of the electric heater (1) is communicated with the MEG rich liquid feeding pipeline, the material outlet of the electric heater (1) is communicated with the material inlet of the three-phase separator (2), the material outlet of the three-phase separator (2) is communicated with the material inlet of the filter assembly, the material outlet of the filter assembly is communicated with the material inlet of the regenerator (6), the distillation outlet of the regenerator (6) is communicated with the gas inlet of the regenerative gas separation tank (11), and the liquid outlet of the regenerative gas separation tank (11) is communicated with the outside through the pipeline with the sewage pump (12); The reboiler (7) is communicated with the bottom of the regenerator (6), the bottom liquid outlet of the reboiler (7) is communicated with the liquid inlet of the buffer tank (8), and the buffer tank (8) is communicated with the MEG lean liquid outlet pipeline through the pipeline with the injection pump.

5. A modular MEG regeneration apparatus according to claim 4, wherein, The position of the regenerator (6) is higher than that of the regenerative gas separation tank (11), and the position of the regenerative gas separation tank (11) is higher than that of the sewage pump (12).

6. The modular MEG regeneration apparatus of claim 4, wherein, The injection pump includes a first injection pump (9) and a second injection pump (10) arranged side by side on the pipeline.

7. The modular MEG regeneration apparatus of claim 4, wherein, The filter assembly includes a pre-filter (3), an activated carbon filter (4) and a post-filter (5) connected in sequence, and the pre-filter (3), the activated carbon filter (4) and the post-filter (5) are semi-hung on the edge of the two-layer skeleton frame. The material inlet of the pre-filter (3) is communicated with the material outlet of the three-phase separator (2), and the material outlet of the post-filter (5) is communicated with the material inlet of the regeneration tower (6).

8. The modular MEG regeneration apparatus of claim 4, wherein, A material pre-heater is arranged in the buffer tank (8), the MEG rich liquid feeding pipeline is communicated with the inlet of the material pre-heater, and the outlet of the material pre-heater is communicated with the material inlet of the electric heater (1).

9. The modular MEG regeneration apparatus of claim 4, wherein, The top gas outlet of the three-phase separator (2), the top gas outlet of the regeneration tower (6), and the top gas outlet of the regeneration gas separation tank (11) are all provided with a venting pipeline communicated with the outside.

10. The modular MEG regeneration apparatus of claim 2, wherein, The control system comprises a weak power control cabinet (14) and a strong power control cabinet (13), and the weak power control cabinet (14) and the strong power control cabinet (13) are both installed on the lower bottom plate.

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